详情描述

DY Type Belt Press Concentrating Filter


Sludge Thickening and Dewatering Integrated Machine Performance Features

1. The dehydration roller diameter and arrangement are optimized by computer design, with pressure varying in a gradient, reducing the moisture content of the filter cake by 1-2% compared to similar models. The transmission and correction rollers are wrapped with rubber on the outer surface to increase friction. The main dehydration roller features a filter drum structure for rapid drainage. The other rollers are made of Q235 steel with high corrosion resistance. All rollers undergo balancing adjustments to ensure smooth, light, wear-resistant, and corrosion-resistant rotation.

2. The machine employs a "dual-point probabilistic bias adjustment device," overcoming the drawbacks of single-side bias adjustment and large deformation of the filter belt, ensuring safe and reliable operation of the filter belt and extending the service life of the mesh belt by 50%. This device features air pressure automatic correction. When the filter belt deviates, the "self-luminous non-contact infrared sensor" receives a bias adjustment signal, the solenoid valve operates, and the correction cylinder moves, gradually aligning the filter belt to its normal position. When the filter belt runs off in the opposite direction, the other side's "self-luminous non-contact infrared sensor" also receives a bias adjustment signal, the solenoid valve operates, and the correction cylinder on the other side moves, aligning the filter belt to its normal position as well, achieving dynamic balance on both sides of the center position within a certain range, thereby achieving the purpose of automatic correction. The "self-luminous non-contact infrared sensor" device overcomes the drawback of contact-type signal generators causing wear on both sides of the filter belt, extending the service life of the filter belt by over 20%.

3. To ensure the safe and reliable operation of the dehydration system, this machine is equipped with an over-speed alarm delay sequential shutdown function and an emergency stop button to ensure automatic safety operation. When the bias correction device fails and the belt deviation on one side reaches 40mm, the over-speed "self-luminous non-contact infrared sensor" device emits a signal, the system sounds an alarm with both light and sound simultaneously, and after a few minutes of delay, the dehydration system will automatically stop working. In case of any special emergencies, the emergency stop button can be operated to achieve an immediate shutdown.

4. "Cross-Flow Granulator" serves as the feeding device for the machine's flocculation process, overcoming issues of uneven mixing during agitation and flocculation, as well as the non-uniform mixing of the slurry and chemicals in the same direction. It can reduce the amount of chemicals used by over 20%, and features a flow guide plate inside the discharge outlet to ensure uniform mud discharge.

5. This unit features a "spiral seamless filter belt" made of monofilament polyester, which boasts high strength, smooth surface, excellent breathability, easy cleaning, high solid recovery rate, and long service life. It overcomes the weakness of low joint strength in filter belts with joints, with a service life of up to 5,000 hours. It can also be locally replaced and repaired.

6. Belt concentrator with a quick drainage fabric device, utilizing dot-style sludge rods to activate materials, preventing small water puddles, featuring fabric and water drainage functions, as well as the two-stage gravity dewatering design of the belt dewatering machine. This design extends the length of the gravity dewatering section without increasing the equipment length, fully adapting to the variation in sludge volume, and enhancing the equipment's processing capacity by 5%.

7. The rack primarily serves as a support and installation positioning for various components, thus it possesses sufficient rigidity. To ensure that the equipment has both adequate rigidity and excellent visual appeal, the rack is made of square tubes and the stress is时效removed, resulting in high strength, good performance, and an aesthetically pleasing appearance. It does not experience deformation due to stress release from welding, which could affect equipment precision.

8. To ensure both aesthetic appeal and practicality of the equipment, the tensioning device design incorporates a mechanical manual tensioning method for the concentration section, achieving filter belt tension through adjusting the screw. The pressure filtration dewatering section uses an adjustable pressure pneumatic tensioning device, with cylinders at both ends of the roller. The four cylinders for tensioning the upper and lower filter belts are controlled by an air control valve and equipped with a synchronization mechanism to ensure simultaneous operation. The tension force is adjusted according to the user's requirements for the mud cake moisture content via a pressure regulating valve.

9. All fasteners, liquid-receiving trays, and side panels are made of stainless steel with removable covers, enhancing the equipment's corrosion resistance and ease of cleaning.

10. The bearing housing utilizes sealing technology to ensure the bearing operates in a water-free state. The double-row spherical roller bearings are used to guarantee the bearing's service life.

11. The flushing device features a fan-shaped water outlet self-cleaning nozzle, boosting the cleaning power of the conveyor belt by 50%. The fully sealed valve structure prevents water splashes during flushing.

12. Cylinder features oil-free aluminum alloy cylinder, stainless steel piston rod, and tie rod, requiring no lubrication oil, with strong corrosion resistance of the cylinder body.

13. The transmission mechanism features a shaft-mounted variable-speed motor reducer, offering reliable quality, easy speed adjustment, no transmission error, and automatic overload and overheating protection functions.

14. Adjustable discharge device with a mud scraper blade that closely follows the tangent of the discharge roller's diameter, ensuring a tight fit against the roller. The degree of contact between the scraper and the filter belt can be adjusted by the tension of the spring, effectively removing some of the material stuck to the belt.

15. Electrical components offer reliable quality and an aesthetically pleasing appearance.


DY Type Sludge Thickening and Dewatering Machine Working Principle

The sludge first enters the coagulation feed system through a variable flow pump, while the released flocculant also enters the system under the action of the variable flow chemical pump. It then undergoes granulation in a tubular water system, allowing for thorough mixing of the sludge with the flocculant. The ratio of flocculant to sludge is adjusted based on the sludge properties to achieve optimal coagulation. The sludge then moves to a belt thickener, where a rapid dewatering mechanism filters out a large amount of water through a conveyor belt. The concentrated sludge is then discharged to a dewatering machine's gravity dewatering section, where most free water is filtered out under gravity. As the free water separator belt is quickly covered by the free sludge, a "ponding" effect forms on the top. The belt moves forward, flipping the sludge to the lower belt's gravity dewatering section, and the "ponding" is transferred. Under gravity, the "ponding" is filtered out through the belt. As the belt runs, the sludge enters the flanged pre-pressing dewatering section, where the sludge is flattened and lightly compressed for pre-dewatering. It then proceeds to the S-shaped pressure dewatering section, where the sludge is sandwiched between upper and lower filter belts and repeatedly compressed and sheared by a series of rollers from large to small. The sludge is progressively dewatered under the action of compression and shearing forces, forming a filter cake. The filter cake is then stripped from the belt using water at a pressure greater than 0.5 MPa, which automatically cleans the belts to regenerate them. The entire sludge dewatering process is completed. The equipment operates continuously for 24 hours.


The DY Type Sludge Concentration and Dewatering Integrated Machine primarily consists of:

1#--7# Dewatering Rollers (sizes and arrangements optimized by computer. Q235 surface with high corrosion resistance; the outer diameter of the 6# main drive roller is wrapped with chloroprene rubber; all rollers are balanced): 7 sets

2. Roller, guide roller, discharging roller, tension roller (made of Q235 material, with the main drive roller of the concentrator wrapped in chloroprene rubber, all roller shafts are balanced), skew roller (manufactured from Q235 material, wrapped in chloroprene rubber after processing, and balanced): 13 sets

3. Gravelizer in concrete water of divergent flow pipeline (flowing part material AISI 304): 1 set

4. Upper and Lower Cleaning Units: 3 Pieces

5. Gravity fabric box: 1 set

6. Rake blades (Enhanced polypropylene): 3 pieces

7. Variable Speed Main Drive Unit: 2 Sets

8. Deviation Signal Generator (signal source: self-luminous infrared probe): 1 set

9. Automatic Stop System for Filter Belt Over-Offset Alarm (signal source: self-luminous infrared probe): 1 set

10. Seamless Filter Belt (white polyester mesh, lifespan over 5,000 hours): 3 pieces

11. Top and bottom liquid trays (Stainless Steel AISI 304): 3 sets

12. Rack (Q235 material): 1 set

13. Gas-Control System (Aluminum Alloy Cylinder, Stainless Steel Rod, Piston Rod): 1 Set

14. Electric Control System: 1 Set

15. Fasteners and Side Panels (Stainless Steel AISI 304): Full Set

16. Emergency Stop Control Button: 2 pieces

DY Type Belt-Type Sludge Thickening and Dewatering Integrated Machine Main Technical Parameters