Scraper centrifuge is a continuous operation, intermittent operation of filter centrifuge, its control mode is automatic control, but also manual control. the feeding, separation, washing, dehydration, unloading and filter cloth regeneration processes during the operation of the centrifuge are generally completed at full speed. the single cycle time is short capacity is large, and the dry filter slag and good washing effect can be obtained.

Is a continuous operation, intermittent operation of the filter centrifuge, its control mode for automatic control, but also manual control. the feeding, separation, washing, dehydration, unloading and filter cloth regeneration processes during the operation of the centrifuge are generally completed at full speed. the single cycle time is short capacity is large, and the dry filter slag and good washing effect can be obtained.

I. Working principles

The main working principle of centrifuge is to produce centrifugal force to realize solid-liquid separation, which is composed of feed, washing, liquid discharge and so on.

II. Preparation before boot

1. Open the door cover and check for screw loosening, especially spindle.

2. hydraulic station oil level should be station should be more than 2/3 of the oil standard thermometer label YB-N46.

The main pressure working pressure of 3. gas control box should be more than 4㎏, the explosion-proof pneumatic valve (feeding valve, cleaning valve) can be opened reliably, and the cylinder pressure of material level detection is 2.5~4㎏.

III. Boot

1. Before boot, make sure the cover is closed and all screws are tightened.

2. first press the feeding speed button, after the speed (speed read from the tachometer) arrived, press the feeding speed on / off, the feeding indicator light.

3. open the feed valve, start feeding at this time, when the material is full, the feeding indicator lights out.

4. if the machine vibration is small, can open separation speed, if the vibration is large, open cleaning speed, and pay attention to observation, if the vibration is serious, please reduce to the feeding speed.

5. according to the properties of the separation material, nitrogen gas should be filled if necessary to prevent the separation and scraping of.

6. depending on the production process, determine the separation time, after the separation, press the scraping speed button.

• After the reaches the scraper, press the discharge button.

8. scraper, scraper rotation > scraper drop > scraper rise, scraper rotation two > scraper drop > scraper rise, scraper reset, scraper end.

9. when feeding and discharging, the operator shall not leave the post. When feeding, mainly observe the vibration of the machine, outlet, discharge, discharge, mainly check whether the outlet is blocked, motor speed is normal. 10. When the machine is running normally, if there are no special circumstances, please do not press the emergency stop button, especially when running at high speed; if pressed, all the work of the equipment will stop.

IV. Automatic operation (selection function)

1. After manual normal, input the relevant data into the man-machine interface (select accessories).

• If an exception occurs during 2. operation, cut back to manual operation until troubleshooting.
• Fault handling method is similar to manual.
• If the vibration is too large in 4. operation, the machine will stop automatically and cut back to manual processing.

V. Shutdown inspection

1. the opening cover must wait for the centrifuge to stop completely, confirm that the screw and hook have been unloaded, the material level detection limit switch indicator light can be opened, can press the open cover button, when the cover and drum 95 degrees, insert the safety pin. If not, check the compressed air pressure to ensure that the level detection plate is not in the position to open the door cover safely. Similarly, the probe board should not be in the probe position when closing the cover.

2. If want to work in the machine, press the emergency stop button after opening the cover.

3. centrifuge running speed is high, rotation inertia is large, operators must always pay attention to safety, to ensure the safety of personnel and equipment.

4. Clean and replace the filter cloth before work or as appropriate, clean up the material above the hopper, material exploration, etc., and remove the material from the liquid outlet.

5. to check the drum weld, fence, shell parts corrosion, timely reporting.

The main function of centrifuge separator equipment is to remove insoluble matter from fluid, whether solid or liquid. This problem comes, a lot of heavy metal pollution ions are soluble, how to do this? GN discusses with you how precipitator flocculant these sewage treatment agents in the horizontal centrifuge solid-liquid separation process how to cooperate and how to choose.

The precipitator reacts to the chemical characteristics of free ions to form insoluble precipitates. The flocculant aggregates the very small solid suspended matter together to form a large particle size polymer. The pretreatment of the fluid facilitates the solid-liquid separation operation of the decanter centrifuge. Combined use of sewage treatment agents such as precipitators and flocculants, the aggregation and deposition of solid particles and the removal of some dissolved organic matter simplify the operation, save the cost, make the removal of pollutants in wastewater treatment more thorough, more efficient, more complete and lower cost.

In order to achieve a good effect of sewage treatment, the selection of chemicals in the treatment of sewage by decanter centrifuge should be specially analyzed for the physical and chemical properties of sewage, and the distribution of sewage ions, the properties of colloid and suspended matter and the concentration of selected agents should be determined. If the pollutants in water are colloidal, inorganic flocculant is the first choice to make the pollutants metastable and condensed. If the floc is small, it is necessary to add polymer flocculant or to use activated silica gel and other coagulants.

Sometimes in-depth analysis of material characteristics will bring unexpected surprises, according to the charge principle of the same sex repulsive phase absorption, The use of negatively charged flocculants to complex positive charge suspended particles with twice the result with half the effort. It is more suitable for positively charged flocculants to capture the particles with very small negative charge in sewage. Of course, to determine whether the charge properties of pollutant particles are the best partners of horizontal centrifuge, sampling and computer experiments are essential.

In the treatment of horizontal centrifuge, the choice of flocculant precipitator is best determined by sampling experiment, and the sewage sample is determined by the test centrifuge equipment, and then the best proportion of the reagent is confirmed by fine adjustment in production.

Treatment processes such as filtration and flotation are often used in wastewater treatment. By using inorganic flocculant and polyelectrolyte coagulant, the treatment capacity is greatly improved by extending the treatment range. Flocculant precipitator and other chemicals combined with the characteristics of wastewater water quality, flocculant can be used alone, or a variety of flocculant compound use or one main and one auxiliary compound use (auxiliary as coagulant aid). In many cases, the combined use of inorganic flocculant and polymer flocculant can obviously improve the coagulation effect and extend the application range of separation and processing of decanter centrifuge.

What is the oil sludge separation equipment? It mainly refers to a kind of high-tech equipment which can separate solid and liquid phases in silt. Industry commonly known as lying snail centrifuge.

I. OVERVIEW

oil sludge separation equipment is a horizontal spiral discharge, continuous operation of settling equipment.

The working principle of this kind of separator is as follows: the drum and screw rotate at the same speed at a certain differential speed, the material is continuously introduced into the inner cylinder of the feed tube, then accelerated into the drum, and under the action of centrifugal force field, Heavy solid matter is deposited on the drum wall to form sediment layer. The solid phase deposited by the feed screw is continuously pushed to the end of the drum cone and discharged through the slag outlet. The lighter liquid phase forms an inner liquid ring, which is continuously overflowed from the overflow port of the large end of the drum and discharged from the machine through the outlet. This machine can feed, separate, wash and unload continuously at full speed. Compact structure, continuous operation, smooth operation, strong adaptability, production Large capacity, convenient maintenance and other characteristics. suitable for separating suspensions with solid-containing particle size greater than 0.005 mm, concentration range of 2-40%. Widely used in chemical, light industry, pharmaceutical, food, environmental protection and other industries.

II. Working Principles

The suspension enters the oil sludge separation equipment from the feed pipe. Under the high speed rotation of the drum, the specific gravity solid is thrown to the drum wall, and the light gravity liquid is squeezed to the center of the drum. Under the action of the differential speed of the screw and the drum, the solid deposited on the drum wall is pushed by the screw conveyer to the small end of the drum outlet, and the liquid is discharged through the large end of the drum overflow hole.

III. Selection

Choosing suitable oil sludge separation equipment can not only solve the problem of oil sludge separation and improve working efficiency, but also save production cost and reduce operating risk. The main factors affecting selection are as follows:

The speed of oil sludge separation equipment: the general oil sludge separation equipment should be above 3000 rpm, the higher the speed, the higher the separation factor of oil sludge separation equipment, the better the separation effect.

Different materials have different physical and chemical indexes, such as wear resistance, corrosion resistance and so on. The lowest material of oil sludge separation equipment abroad is 316 L, or duplex stainless steel, and ceramic synthetic material should be used for components.

Centrifuge differential control: different differential control accuracy is different, and the difference between life and maintenance cost is very large, the higher the differential accuracy, the better the adaptability to the material, so the equipment with high differential precision should be selected.

Length-diameter ratio: the larger the length-diameter ratio of oil sludge separation equipment, the greater the treatment capacity and the smaller the moisture content.

Control system: whether it is automatic programming control, at present, domestic and foreign equipment manufacturers have basically realized the automatic control of the equipment.

Installation power: affecting the control of energy consumption, general domestic equipment energy consumption ratio is high, foreign energy consumption ratio is low.

Processing technology: oil sludge separation equipment belongs to the separation equipment with high precision processing requirements. The product maintenance rate is high and the processing capacity is limited.

This is a brief introduction to the oil sludge separation equipment.

Disc centrifuge separator is a kind of settling centrifuge and a more precise branch of centrifuge equipment. It adopts centrifugal separation principle to design separation performance, which is superior to that of industrial production fluid separation. In addition, disc centrifuge can not only automatically control continuous operation, but also automatically discharge slag.

Common difficult to separate fluid materials, such as colloidal fluids consisting of viscous liquids and fine solid particles or emulsions with very small specific gravity differences, Because the specific gravity of the components in the fluid is very small or the physical characteristics of viscosity are very difficult to separate, this is the time for disc centrifuges to show off.

Disc centrifuge separators are widely used in laboratory, animal and plant protein separation, oil extraction and refining, biochemical pharmaceutical extraction and other operations. Disc centrifuge separators are commonly used in the following industries:

1. Petrochemical oil separation industry: disc centrifuge is often used for marine turbine, diesel engine, power station and other petrochemical fuel and lubricating oil separation and purification;

2. dairy separation and purification industry: disc centrifuge is often used to clarify and purify fresh milk, degreasing, cheese;

3. purification of vegetable oil industry: disc centrifuge is often used for purification and clarification of vegetable oil hair oil, degumming, soap removal, dehydration and dewaxing in vegetable oil refining;

4. beverage industry: beer, beverage, juice and other semi-finished beverage clarification, plant protein extraction, treatment of wastewater produced in production;

5. starch processing industry: starch pulp concentration and grading;

6. pharmaceutical industry: disc centrifuge is often used in biopharmaceutical antibiotics, biochemical pharmaceutical drug extraction purification and concentration, the clarification of traditional Chinese medicine extraction and purification;

7. chemical raw material manufacturing industry: disc centrifuge is often used to purify or clarify chemical raw materials;

8. lanolin industry: extraction and purification of lanolin from wool washing wastewater;

9. latex production industry: purification and concentration of natural rubber latex pulp;

10. Biofermentation: Disc centrifuges are often used to clarify bioengineered fermentation broths, concentrate, extract, liquid-solid, liquid-liquid-solid separation.

The above mentioned content is about a disc centrifuge separator performance and application scope in a simple way. if you are interested in this product, please contact us for detailed information. We have been exploring in the separation field for more than 10 years with ample experience and reference cases. We hope our products will be a great help to your project.

(3) Wet cracking method

The recovery of black liquor from rice straw pulp by wet cracking method is a new technology in China. the black liquor was wet cracked at about 20 MPa,360 c for 15~30 min,. the organic matter in the black liquor was converted into gas, tar, carbon powder and organic acid, and sodium silicate was converted into Si2 precipitation at high CO2 partial pressure. Then the cracking product is separated by sedimentation method under normal pressure, and the separated liquid can be causticized to recover alkali.

(4) SCA- comparison

The basic principle of this method is similar to that of air oxidation method. The black liquid concentrated to 50~60% was separated by instant heat in the thermal decomposition furnace under the condition of insufficient oxygen. The decomposition product was Na2CO3、H2S、C.

(5) Integrated Black Liquid Utilization

Recovery of sulfate turpentine, preparation of humic acid ammonia with black liquor, recovery of tarot oil, preparation of dimethyl alum with black liquor, etc. In addition, lignin can be recovered to produce alcohol and yeast.

2. Pulping Machine Waste Water Recycling

The waste water discharged by pulp beating machine contains the same composition as black liquid, but the concentration is low. Due to the small amount of organic substances (fibers and bases, etc.) contained, it is difficult to recover, but the total solids, suspended matter and BOD5 in the wastewater are still very high, and the direct discharge is still very serious for water pollution, so it needs to be treated. and the main treatment methods include coagulation sedimentation, air floatation, activated sludge, stabilization pond, biofilter and A/O.

3. Paper Machine Wastewater Recycling

The waste water discharged from the paper machine contains a large amount of fiber, if it is not recycled, it will cause a great waste. Therefore, the waste water of the paper machine must be fully recovered and reused. These water parts can be used to dilute pulp (such as white water discharged by case Kun), partly to be used in beating engineering (water absorption tank and waste water pressed by Fu Kun), and waste water that can not be used in beating engineering should be sent to the recovery device for feed recovery.

GN has been working in the waste water treatment industry for more than a decade. We are always doing our best to meet customers’ requirements and designing the most fit product for our clients’ project. In waste water treatment, we are professional. If you have any questions, please feel free to contact our sales team.

I. Sources and characteristics of papermaking wastewater

There is a lot of water in the process of paper making. It takes about 300~500 m3, to produce 1 paper. In paper wastewater, it not only contains a large number of raw materials (about 20% of raw materials are lost with wastewater), but also contains a lot of chemicals and other impurities.

For the limited treatment of papermaking wastewater. First of all, we must understand the water quality of papermaking wastewater. There are three kinds of wastewater from alkaline papermaking:

1. cooking wood pulp (or straw pulp) generated waste liquid, also known as black liquid.

2. beating machine and pulping machine discharged wastewater, called beating wastewater.

3. paper machine wastewater, which can be directly used called white water.

The main pollutants contained in these wastewater are as follows:

1. suspended

Includes collapsible and non-collapsible suspensions, mainly fibers and fine fibers (i.e. broken fiber fragments and miscellaneous cells)

2. biodegradable organic compounds

Including low molecular weight hemicellulose, methanol, acetic acid, formic acid, sugar and so on.

3. refractory organic matter

It mainly comes from lignin and macromolecular carbohydrates in fiber raw materials.

4. toxic substances

Black liquor contains rosin acid and unsaturated fatty acids and so on.

5. acid-base poisons

The ph value of alkali pulping wastewater is 9~10, and that of acid pulping wastewater is 1.2~2.0.

6. chroma

The residual lignin in pulping wastewater is highly colored.

II. Recycling of papermaking wastewater

Because papermaking wastewater consists of three kinds of wastewater: black liquid, pulping machine wastewater and papermaking machine wastewater, its recovery and utilization is mainly aimed at these three kinds of wastewater.

1. black liquor recycling

 (1) Traditional alkali recovery (combustion)

The paper industry uses a large amount of alkali, each production of 1 t pulp needs 200~400 kg caustic soda. About 35% of the black liquor discharged after cooking is inorganic, the main components of which are free NaOH、Na2S、Na2SO4 and other sodium salts combined with organic matter. The purpose of alkali recovery is to convert these sodium salts into NaOH and Na2S recycling to reduce costs and reduce pollution to water bodies.

(2) Wet oxidation

Wet air oxidation refers to the process in which organic matter in wastewater is oxidized and decomposed at high temperature and high pressure, the degree of oxidation depends on the temperature and pressure used. This method is suitable for caustic soda black liquor.

In recent years, with the rapid growth of the food industry, the waste water discharged by it greatly pollutes the environment, and loses a lot of energy and water resources, which in turn restricts its own growth. Due to the severe lack of resources in the face of the world at this stage, it is urgent to choose the appropriate waste water disposal punishment to achieve the goal of water saving and energy saving.

The important source of sewage in food industry is the process of food processing, such as punishment, washing, dehydration, filtration, dispersing and refining, deacidification, deodorization and cooking. Sewage contains a large amount of egg white, organic acids and carbohydrates. Due to the existence of many plankton, dissolved organic matter in water grows rapidly, and humus is easy to occur and accompanied by unpleasant gas. At the same time, copper, lead, manganese, chromium and other metal ions other metal ions in these sewage, and bacteria and coliform bacteria often exceed the national discharge scale.

The important pollutants in wastewater are (1) solid substances, such as vegetable leaves, pericarp, minced meat and poultry feathers, etc .;(2) oil, egg white, starch, colloid, etc .;(3) acid, alkali, salt, sugar, etc. dissolved in wastewater :(4) mud sand and other organic matter entrained by qualitative materials ;(5) pathogenic bacteria, etc. Food industry wastewater is characterized by high organic matter and suspended matter content, easy to erosion, the same usually no toxicity. Its harm is to make the water body eutrophication, so as to cause aquatic animals and fish to die, promote the accumulation of organic matter under the water odor, deterioration of water quality pollute the environment.

Since there are many kinds of food, there are many kinds of material springs, the sewage of food industry has the characteristics of suspended matter, high oil content, heavy metal ions, large COD and BOD value, large range of water quality and quantity change, high content of nitrogen and phosphorus compounds, and high water temperature in some environments. Therefore, the punishment of sewage disposal in food industry is usually to accept solid-liquid dispersion skills to remove suspended matter and drifters from sewage to reach the sewage discharge scale.

Solid-liquid dispersion skills we accept Zhejiang Sanlian environmental protection machine equipment deployment Co., Ltd. LW spiral discharge settling machine. It is important to be used in the field of solid and liquid dispersion in all living wastewater, industrial wastewater, chemical, food, pharmaceutical and similar production industries.

The process of wastewater from the food industry is as follows:

The suspension of wastewater in the food industry enters the drum through the feed pipe from the spiral outlet. Under the action of the centrifuge in which the high speed rotation takes place, the solid particles with large specific gravity are deposited on the inner wall of the drum. After dispersing the clear night through the liquid layer adjustment plate opening overflow and flow drum. The relative activity between the spiral body and the drum (that is, the differential speed) is realized by the differential, and its fineness is controlled by the auxiliary motor, thus realizing the continuous dispersion of the centrifuge to the material.

All kinds of waste water biological disposal punishment system is constantly emerging, the above-mentioned food wastewater is to accept the new solid-liquid dispersion skills, with high use rate, simple installation, wide application scope and other advantages, and has been put into practice in foreign countries, to achieve success. We can learn from the disposal and punishment skills of these ancestors, and trust that with the continuous strengthening of people’s awareness of environmental protection, the water environment of our country will certainly change.

Filter press and horizontal screw centrifuge are common solid-liquid separation equipment, the amount of retention is very large, rich sunshine and you solid-liquid separation production line machine from filter press to horizontal screw centrifuge technical advantages:

1. horizontal centrifuge without filter media,

Filter press pressure filtration of filter medium (filter) to separate solid and liquid, need to use high pressure water to avoid filter belt obstruction; horizontal centrifuge high speed rotation to produce Li Xin position to separate solid-liquid centrifugal settlement, It is not suitable for filter medium because of filter screen, which bypasses the common filter clogging problem in filter operation.

2. horizontal screw centrifuge is widely applicable

Filter press can also most of the solid-liquid separation, but the oil, viscosity and other strong adhesion of solid-liquid separation needs pretreatment and incomplete separation; horizontal screw centrifuge separation adaptability, can achieve solid-liquid two-phase separation and solid-liquid three-phase separation, better adaptability to solid-liquid separation.

3.Automation of production line of 3. horizontal screw centrifuge:

Filter press is intermittent operation of manual cutting slag, loading and unloading belong to intermittent operation most or need manual coordination is not conducive to the formation of automatic production line to improve production efficiency; Horizontal centrifuge can realize automatic loading and unloading continuous production automatic loading and unloading can form automatic production line production efficiency.

4. horizontal screw centrifuge parameters adaptive adjustment ability,

In the process of solid-liquid separation and dehydration, the belt filter is adjusted according to the working conditions, and the parameters such as speed, tension, dosage and flushing pressure often depend on the experience of the operator, which requires high operation technology.

5.Low consumption of pre-treatment material for 5. screw centrifuge

Because filter press filter medium (mainly filter net) mesh will not be very small, so filter particle size can not be too small, small particle size should also add a lot of flocculant complex to synthesize large groups to facilitate filtration, which results in the consumption of additional pretreatment materials. In horizontal centrifuge, fine sludge can also be separated from water, so the dosage of flocculant is less, saving material input and reducing production cost;

6. horizontal screw centrifuge production line environment is good:

In addition to the main filter press, the filter press also needs to add medicine and feed conveyor washing pump air compressor and other ancillary equipment, large area, the whole machine is difficult to seal, high pressure cleaning water mist and odor pollution environment, poor production line environment;

7. low maintenance requirements for horizontal centrifuge

The number of easily damaged parts in the fuselage accessories of filter press is many times that of centrifuge. Maintenance is not only labor intensity but also high cost.

It can be seen from the above comparison that the comparison of the same processing conditions with the filter press has great technical advantages, and the solid-liquid separation production line from the filter press to the horizontal screw centrifuge is the development trend.

The solid-liquid separation capacity of horizontal screw centrifuge is strong, high efficiency and high treatment capacity. It has been widely used in sewage treatment in China, which greatly reduces the cost of sewage treatment and creates huge economic value and social environmental protection value. Here are some common operational problems for Decanter centrifuge in sewage treatment, GN discuss with you.

Decanter centrifuge is not easy —— selection is important:

The equipment principle is based on the specific gravity difference of solid and liquid to accelerate the settlement of solid and liquid by applying centrifugal force field to achieve the purpose of separation. Because there may be some differences in the parameters of different fuselage components in the design of Decanter centrifuge, such as slag discharge ability and drum requirement. Since the horizontal screw centrifugation and the use of bias, since it is sewage treatment, in the selection of course, only to buy suitable for the sewage treatment process of centrifugal separator equipment can achieve twice the result with half the effort.

Disstable separation effect —— parameter adjustment are important:

Although the parameter setting habits of each manufacturer are different, in general, in order to better cope with the material change and enhance the general performance of the machine, the commonly used adjustment of the required parameters include the speed adjustment of the drum, the speed difference adjustment of the push differential, and the height of the overflow plate. For different materials, you are too lazy to adjust the parameters to make the machine more suitable. It is really difficult to imagine what kind of teasing performance the engineering mud desliming parameters will have ~ directly to the wastewater treatment of the steel plant

Disparation effect is not good —— pretreatment is important

For the next stage of solid-liquid separation of horizontal screw centrifuge to do a good pretreatment, to achieve the best separation effect;

Decanter centrifuge is easy to damage —— production operation maintenance techniques are important:

Decanter centrifuge is suitable for frequent failures, can not be wronged you, this may be due to poor material applicability, such as material slurry impurities too much, feed too fierce resulting in slag discharge is not smooth, rotary block…

However, most of the feed impurities can be added to the material pretreatment section, the discharge is not smooth can be adjusted according to the material characteristics of the push speed difference, block can always check whether there is a lack of lubricating oil or foreign body stuck in the rotating shaft, These causes of Decanter centrifuge failure can be said to have nothing to do with the operator?

I. Widespread application

1. suitable for municipal sewage, food, beverage, chemical, leather, welding materials, paper, printing and dyeing, pharmaceutical and other industries sludge.

2. suitable for dewatering high and low concentration sludge. For low concentration (2000 mg/L~) sludge dewatering, there is no need to build concentration tank, storage tank, reduce construction cost, reduce phosphorus release and anaerobic odor production.

II. Small-scale design

1. Compact design, the dehydrator contains electronic control cabinet, metering tank, flocculation mixing tank and dehydrator body.

2. space is small, easy to repair and replace; small weight, easy to carry.

III. Not easily blocked

1. has the function of self-cleaning. There is no need to clean to prevent clogging, reduce washing water consumption and reduce internal circulation burden.

2. is good at dewatering oily sludge.

 IV. Low speed operation

1. The speed of the screw shaft is about 2~3 rpm, and the power consumption is very low.

2. failure is less, noise vibration is small, operation is safe.

V. Simple operation

1. through the electronic control cabinet, with the bubble medicine machine, mud pump, dosing pump, etc., to achieve 24 hours of continuous unmanned operation.

2. daily maintenance time is short, maintenance operation is simple.

VI. Durable

1. Almost all thebody is made of stainless steel, which can prolong the service life to the maximum extent.

2. replacement parts only spiral shaft and swimming ring, long service period.

 VII. Low investment costs

1.  Various product specifications, complete series, for different processing scale, can choose the most suitable model, to avoid overuse.

•  The body is compact in design, integrated in concentration and dewatering, with auxiliary devices such as electronic control cabinet and sludge flocculation mixing tank, which has strong compatibility with supporting equipment and is easy to design.

•  Small design, easy to adapt to local conditions, can reduce the dehydrator itself space and construction costs.

•  It has the function of sludge concentration, so it does not need to concentrate and store units to reduce the overall space and construction cost of sewage treatment facilities.

•  The main body of the dehydrator has the function of self-cleaning, so it is not necessary to use a large amount of water to prevent sludge clogging.

•  Adopt low speed spiral extrusion technology, low power consumption.

•  The electronic control cabinet is equipped with automatic control device, from conveying sludge, injecting medicine liquid, concentrating and dewatering, to discharging mud cake, realizing 24 hours automatic continuous unmanned operation and reducing workers’ expenses.