Belt Pressure Filter Machine
【Capacity】 0.5-30 t/h
【Power】 0.75-7.5 kW
【Slurry Feed Concentration】 3-8%
【Output Concentration】 25-40%
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The belt filter press (belt filter) is a commonly used solid-liquid separation device, which can continuously filter a large amount of sediment through chemical flocculation and mechanical extrusion. It has the advantages of a simple structure, high dehydration efficiency, and large processing capacity. It is widely used in sludge dehydration in urban sewage treatment, the chemical industry, oil refining, metallurgy, papermaking, leather making, food, coal washing, printing and dyeing, and other industries. It is an ideal equipment for sludge dehydration.
Features
- The structure has high rigidity, stable operation, and low noise.
- It is equipped with advanced concentration pretreatment equipment (good flocculation effect on sludge) and has a low operating cost.
- The gravity dehydration area is equipped with advanced distributors to make the material evenly distributed and extend the life of the filter belt.
- It has an ultra-long gravity dehydration area and wedge-shaped dehydration area, and the material is fully dehydrated to ensure that the material will not overflow in the pressing area.
- The roller system is arranged scientifically and orderly, and the gravity dehydration, wedge-shaped dehydration, and pressing dehydration are discharged separately without interfering with each other. The pressing dehydration roller has a large diameter ratio and a good dehydration effect. Therefore, the production capacity is large, energy-saving, and high-yield.
- The continuous operation from feeding to discharging mud cake has a high degree of automation. PLC interface can be set according to needs to facilitate centralized control by microcomputer.
- The power transmission mechanism adopts mechanical or variable frequency step-less speed regulation, with a large speed regulation range and wide adaptability.
- The filter belt is equipped with a reliable backwashing device to ensure the dehydration effect of the filter belt.
- Pneumatic tensioning and pneumatic automatic deviation correction devices are used to ensure the safe and normal operation of the filter belt.
- The operation is safe and reliable, and infrared safety protection and multi-directional emergency safety parking devices are used. The filter belts with different structures can be configured according to different materials with high filtering accuracy.
The larger the belt filter press model, the wider the filter belt, and the greater the processing capacity. When choosing, users can choose a belt filter press that suits their processing capacity based on the site area, capital budget, and their own needs.
Product Structure
The belt filter press consists of a main machine, a main machine frame, a bearing seat, and a filter screen. The main body is made of stainless steel, including the main dewatering roller, waterproof cover, nozzle, water receiving trough, fender, etc.
[How does the belt press work?]
The dehydration process of the belt filter press includes four stages: pretreatment, gravity dehydration, wedge-shaped zone pre-pressure dehydration, and pressing dehydration. Among them, the latter two stages are the stages where mechanical pressure plays a role.
1. Pretreatment (sludge flocculation)
Before filter pressing dehydration, the sludge is subjected to physical and chemical treatment of sludge flocculation to improve the dehydration of the sludge.
2. Gravity dehydration (removal of free water)
The sludge enters the filter screen through the cloth hopper and moves forward with the filter belt. After passing through the gravity-free dehydration zone, the free water is removed through the flocculent filter belt. At this stage, most of the free water in the sludge is removed, the sludge fluidity is reduced, and the sludge's ability to withstand pressing is enhanced.
3. Wedge-shaped zone pre-pressure dehydration (low/medium pressure dehydration)
The interval between the upper and lower filter belts is reduced, the upper and lower filter belts squeeze the sludge, the filtrate begins to overflow from both sides of the filter belt, and as the filter belt runs, the pressure gradually increases. The extrusion stability of the flocculent group is gradually enhanced.
4. Squeezing dehydration (high-pressure dehydration)
When the sludge enters the high-pressure dehydration zone, the diameter of the roller is reduced to maximize the pressure on the sludge. After being squeezed by the clamping rod, the intermittent free water in the sludge is squeezed out to form a filter cake with a high solid content. The filter cake is brought into the filter belt head and unloaded into the discharge chute by the scraper.
Technical Parameters
| Model | Capacity (T/H) | Motor Power (kW) | Air Compressor Power (kW) | Belt Width (mm) | Slurry Feed Concentration (%) | Output Concentration (%) | L*W*H (mm) |
| TXYL500 | 0.5-4 | 0.75 | 1.1 | 500 | 3-8 | 25-40 | 4290*900*1840 |
| TXYL1000 | 3-6.5 | 1.5 | 2.2 | 1000 | 3-8 | 25-40 | 4790*1400*2040 |
| TXYL1500 | 4-9.5 | 1.5 | 3 | 1500 | 3-8 | 25-40 | 4790*1900*2040 |
| TXYL2000 | 5-13 | 2.2 | 4 | 2000 | 3-8 | 25-40 | 4790*2400*2040 |
| TXYL2500 | 7-15 | 4 | 5.5 | 2500 | 3-8 | 25-40 | 5300*2900*2250 |
| TXYL3000 | 8-20 | 5.5 | 5.5 | 3000 | 3-8 | 25-40 | 5300*3400*2250 |
| TXYL4000 | 12-30 | 7.5 | 7.5 | 4000 | 3-8 | 25-40 | 5300*4400*2250 |
Successful Cases
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