Belt type concentration and dehydration equipment for sludge treatment

Abstract

The invention discloses belt type concentration and dehydration equipment for sludge treatment, and relates to the technical field of sludge treatment. The sludge dewatering device comprises a bottom frame and a top frame, the top frame is stably installed at the top end of the bottom frame through bolts, a plurality of guide rollers are rotationally arranged in the bottom frame and the top frame, the outer walls of the guide rollers in the bottom frame and the top frame are sleeved with filter belts correspondingly and used for sludge dewatering, and the ends, close to the discharging opening, in the bottom frame and the top frame are each provided with a desliming assembly. The middle parts of the bottom frame and the top frame are respectively provided with a spray-washing assembly and a vibration composite drainage assembly, and impurity adsorption assemblies are respectively arranged at one ends, close to the feed port, in the bottom frame and the top frame; through the arrangement of the vibration composite drainage assembly and the impurity adsorption assembly, the vibration composite drainage assembly firstly accelerates the separation of water in pores of the filter belt through high-frequency vibration, then cooperates with a high-strength air curtain sprayed by an air knife to quickly peel off water stains on the surface, and then performs secondary adsorption cleaning on residual fine particles on the surface of the filter belt through the impurity adsorption assembly; impurities are effectively prevented from blocking filter holes, and water permeability of the filter strip is maintained.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically to a belt-type thickening and dewatering device for sludge treatment. Background Technology

[0002] Sludge dewatering is the core link in sludge reduction and stabilization treatment. It refers to the process of removing excess water from sludge through physical, chemical or mechanical means, reducing sludge volume and increasing sludge solids content, laying the foundation for subsequent sludge transportation, landfill, incineration or resource utilization. In traditional belt dewatering equipment, fine particles in sludge easily embed into the filter belt pores. Even after cleaning, residual water stains and impurities on the filter belt surface will gradually accumulate and clog the filter pores, causing the filter belt's permeability to decrease significantly over time. This leads to a decline in sludge dewatering efficiency, resulting in incomplete capillary water extrusion, reduced solids content in the sludge cake, and an impact on the overall treatment effect. Secondly, dewatered sludge easily adheres to the filter belt surface. The rigid scraping structure used in traditional equipment not only easily scratches the surface fibers of the filter belt and shortens its service life, but also suffers from incomplete sludge removal. Residual sludge will cause secondary pollution to the filter belt, further exacerbating the vicious cycle of filter pore clogging. To address these issues, the inventors have proposed a belt thickening and dewatering equipment for sludge treatment to solve these problems. Summary of the Invention

[0003] In order to solve the problems of reduced sludge dewatering efficiency and incomplete sludge stripping caused by filter belt clogging, the present invention aims to provide a belt-type thickening and dewatering device for sludge treatment.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a belt thickening and dewatering device for sludge treatment, comprising a bottom frame and a top frame, wherein the top frame is securely installed on the top of the bottom frame by bolts, and a plurality of guide rollers are rotatably arranged inside both the bottom frame and the top frame. Filter belts are respectively fitted on the outer walls of the guide rollers in the bottom frame and the top frame for sludge dewatering. A desludge dewatering component is provided inside the bottom frame and the top frame near the discharge port. A spray washing component and a vibration composite drainage component are provided in the middle of the bottom frame and the top frame. An impurity adsorption component is provided inside the bottom frame and the top frame near the feed port. A floating roller that works in conjunction with the filter belt is provided on the inner wall of the bottom frame and the top frame near the desludge dewatering component.

[0005] Preferably, the desliming assembly includes two horizontal plates, which are respectively bolted to the inner walls of the bottom frame and the top frame. A drive shaft is rotatably mounted on the outer side of the horizontal plate via a bearing seat, and the two drive shafts are respectively rotatably mounted on the corresponding bottom frame and top frame. A fixed cylinder is fixedly mounted at each of the four corners of the outer side of the horizontal plate. A sliding rod is slidably mounted on the inner wall of the fixed cylinder. A buffer plate is fixedly mounted at the end of the sliding rod. A support frame is fixedly mounted in the middle of the inner wall of the buffer plate. Two symmetrically distributed limit blocks are fixedly mounted on the side of the support frame near the horizontal plate. Two cams that cooperate with the limit blocks are fixedly sleeved on the outer wall of the drive shaft. The two drive shafts are connected by a synchronous wheel transmission group. A servo motor is fixedly mounted on the outer wall of the bottom frame near the lower drive shaft via a base, and the drive end of the servo motor is connected to the corresponding drive shaft by a coupling. Two symmetrically distributed buffer springs are sleeved on the outer wall of the sliding rod.

[0006] Preferably, the vibration composite drainage assembly includes a drainage frame, with two drainage frames securely mounted on the inner walls of the bottom frame and top frame respectively by bolts. A vibration frame is installed inside the drainage frame, with buffer rollers rotatably mounted on both sides of the top of the vibration frame. A vibration housing is securely mounted on the middle of the bottom of the vibration frame by bolts. A rotating shaft is rotatably mounted on the middle of the inner wall of the vibration housing, and an eccentric turbine is fixedly sleeved on the outer wall of the rotating shaft. A housing is securely mounted on the bottom frame and top frame near the drive shaft via supports. An impeller that cooperates with the housing is fixedly mounted at the end of the drive shaft. An air inlet pipe is connected through the exhaust end of the housing, and the exhaust end of the housing is tapered. The other end of the air inlet pipe is connected through to the air inlet end of the vibration housing. An exhaust pipe is connected to the air outlet of the vibrating shell. A top cover is securely installed on the top of the drainage frame with bolts. Two symmetrically distributed air knives are fixedly installed at the bottom of the top cover. The other end of the exhaust pipe is split and connected to the air inlet of the corresponding air knife. Guide posts are fixedly installed at the four corners of the bottom of the vibrating frame. A guide frame is slidably fitted on the outer wall of the guide post, and the bottom of the guide frame is fixedly connected to the drainage frame. Two symmetrically distributed buffer springs are provided on the inner wall of the guide frame in the vertical direction. The upper buffer spring is fitted on the outer wall of the guide post, and the lower buffer spring is located between the guide post and the bottom of the inner wall of the guide frame. Two symmetrically distributed floating rollers are fixedly installed on the inner wall of the drainage frame, and the two floating rollers are located on both sides of the buffer rollers.

[0007] Preferably, the spray washing assembly includes a washing frame, two washing frames are respectively fixedly installed in the middle of the inner wall of the bottom frame and the top frame by bolts, a top plate is fixedly installed at the top of the washing frame by bolts, a fixing frame is fixedly installed at the bottom of the top plate by bolts, a number of equally spaced washing nozzles are fixedly installed on the fixing frame, two symmetrically distributed diverters are fixedly installed at the top of the top plate, and the liquid outlet of the two diverters is connected to the corresponding washing nozzle through a conduit. The liquid inlet of the two diverters merges and is connected to the drain of an external water source through a conduit. The inner wall of the washing frame is provided with six auxiliary rollers arranged in a trapezoidal shape to cooperate with the filter belt.

[0008] Preferably, the impurity adsorption assembly includes a dust collection frame and a hopper. The two dust collection frames are securely mounted on the bottom frame and top frame respectively by supports. The two hoppers are securely mounted on the outer wall of the bottom frame by supports. The air inlet end of the hopper is connected to a dust collection pipe, and the other end of the dust collection pipe is connected to the corresponding dust collection frame. The exhaust end of the hopper is connected to a connecting pipe, and a filter frame is installed at the bottom of one end of the connecting pipe inside the hopper.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention, by setting up a vibration composite drainage component and an impurity adsorption component, after the filter belt is sprayed and washed, the vibration composite drainage component first accelerates the removal of water from the filter belt pores with high-frequency vibration, and then, in conjunction with the high-intensity air curtain sprayed by the air knife, quickly removes surface water stains. Subsequently, the impurity adsorption component performs secondary adsorption and cleaning of the fine particles remaining on the surface of the filter belt, effectively preventing impurities from clogging the filter pores, maintaining the stable permeability of the filter belt in the long term, ensuring that capillary water can be efficiently permeated and discharged during sludge dewatering, thereby significantly improving sludge dewatering efficiency and treatment stability. 2. This invention sets up a sludge removal component, which drives the drive shaft to rotate the cam synchronously. The cam, through the limit block and the first buffer spring, causes the buffer plate to transmit power to the filter belt in a flexible vibration form. The vibration causes the sludge adhering after dewatering to loosen and peel off, avoiding the scratching of the filter belt fibers by the traditional rigid scraper, extending the service life of the filter belt, and reducing the secondary pollution of the filter belt by residual sludge. 3. This invention, by setting up a spray washing component, allows the cleaning nozzle to spray cleaning liquid at a 45° angle along the direction of filter belt entry. With the impact force of the cleaning liquid, the stubborn sludge layer attached to the surface of the filter belt is directly peeled off. At the same time, the cleaning liquid can penetrate along the pores of the filter belt to accurately flush away the fine particles embedded in the pores, thereby improving cleaning efficiency. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall front structure of the present invention; Figure 2 This is a schematic diagram of the overall side structure of the present invention; Figure 3 This is a schematic diagram of the side-section structure of the present invention; Figure 4 This is a schematic diagram of the spray washing assembly in this invention; Figure 5This is a schematic diagram of the top cover and air knife in this invention; Figure 6 This is a schematic diagram of the drainage frame and vibration frame in this invention; Figure 7 This is a schematic diagram of a portion of the vibration composite drainage component in this invention; Figure 8 This is a schematic diagram of the structure of the impurity adsorption component and the vibration composite drainage component in this invention; Figure 9 This is a schematic diagram of the structure of the casing and impeller in this invention; Figure 10 This is a schematic diagram of the desliming component in this invention; Figure 11 This is a schematic diagram of the drive shaft, cam, and support frame in this invention; Figure 12 for Figure 3 Enlarged structural diagram at point A; Figure 13 for Figure 3 Enlarged structural diagram at point B; Figure 14 for Figure 5 Enlarged schematic diagram of the structure at point C; Figure 15 for Figure 7 Enlarged structural diagram at point D; Figure 16 for Figure 8 Enlarged structural diagram at point E; Figure 17 for Figure 11 Enlarged schematic diagram of the structure at point F.

[0012] In the diagram: 1. Base frame; 2. Top frame; 3. Guide roller; 4. Filter belt; 5. Desliming assembly; 501. Horizontal plate; 502. Drive shaft; 503. Fixed cylinder; 504. Sliding rod; 505. Buffer plate; 506. Support frame; 507. Limiting block; 508. Cam; 509. Buffer spring No. 1; 510. Servo motor; 6. Spray washing assembly; 601. Cleaning frame; 602. Top plate; 603. Fixed frame; 604. Cleaning nozzle; 605. Diverter; 606. Auxiliary roller; 7. Vibrating composite conveyor. Water assembly; 701, Drainage frame; 702, Vibration frame; 703, Buffer roller; 704, Guide column; 705, Guide frame; 706, No. 2 buffer spring; 707, Vibration housing; 708, Rotating shaft; 709, Eccentric turbine; 710, Air inlet pipe; 711, Exhaust pipe; 712, Top cover; 713, Air knife; 714, Machine casing; 715, Impeller; 8, Impurity adsorption assembly; 801, Dust suction frame; 802, Hopper; 803, Dust suction pipe; 804, Connecting pipe; 805, Filter frame; 9, Floating roller. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Example: Figure 1-17 As shown, the present invention provides a technical solution: a belt thickening and dewatering device for sludge treatment, including a bottom frame 1 and a top frame 2. The top frame 2 is fixedly installed on the top of the bottom frame 1 by bolts. Several guide rollers 3 are rotatably arranged inside the bottom frame 1 and the top frame 2. Filter belts 4 are respectively sleeved on the outer walls of the guide rollers 3 in the bottom frame 1 and the top frame 2 for sludge dewatering. A sludge dewatering component 5 is provided inside the bottom frame 1 and the top frame 2 near the discharge port. A spray washing component 6 and a vibration composite drainage component 7 are provided in the middle of the bottom frame 1 and the top frame 2. An impurity adsorption component 8 is provided inside the bottom frame 1 and the top frame 2 near the feed port. The desliming assembly 5 includes a horizontal plate 501. The two horizontal plates 501 are fixedly installed on the inner walls of the bottom frame 1 and the top frame 2 by bolts. The drive shaft 502 is rotatably installed on the outer side of the horizontal plate 501 through a bearing seat. The two drive shafts 502 are rotatably installed on the corresponding bottom frame 1 and top frame 2. Fixed cylinders 503 are fixedly installed at the four corners of the outer side of the horizontal plate 501. Sliding rods 504 are slidably installed on the inner wall of the fixed cylinders 503. Buffer plates 505 are fixedly installed at the ends of the sliding rods 504. Support frames 506 are fixedly installed in the middle of the inner wall of the buffer plates 505. Two symmetrically distributed limiting blocks 507 are fixedly installed on the side of the support frame 506 near the horizontal plate 501. Two cams 508 that cooperate with the limiting blocks 507 are fixedly sleeved on the outer wall of the drive shaft 502. The vibration composite drainage component 7 includes a drainage frame 701. Two drainage frames 701 are respectively fixedly installed on the inner walls of the bottom frame 1 and the top frame 2 by bolts. A vibration frame 702 is provided inside the drainage frame 701. Buffer rollers 703 are rotatably installed on both sides of the top of the vibration frame 702. A vibration shell 707 is fixedly installed on the middle of the bottom of the vibration frame 702 by bolts. A rotating shaft 708 is rotatably installed on the middle of the inner wall of the vibration shell 707. An eccentric turbine 709 is fixedly sleeved on the outer wall of the rotating shaft 708.

[0015] By adopting the above technical solution, the vibration of the buffer plate 505 in the sludge removal component 5 drives the corresponding filter belt 4 to vibrate, which promotes the sludge adhering to the surface of the filter belt 4 after dewatering. The vibration and wind force in the vibration composite drainage component 7 work together to treat the water stains and dirt on the surface of the filter belt 4 after cleaning.

[0016] The spray washing assembly 6 includes a cleaning frame 601. Two cleaning frames 601 are respectively fixedly installed in the middle of the inner wall of the bottom frame 1 and the top frame 2 by bolts. A top plate 602 is fixedly installed on the top of the cleaning frame 601 by bolts. A fixing frame 603 is fixedly installed on the bottom of the top plate 602 by bolts. Several cleaning nozzles 604 are fixedly installed on the fixing frame 603 at equal intervals. Two symmetrically distributed diverters 605 are fixedly installed on the top of the top plate 602. The liquid outlet of the two diverters 605 is connected to the corresponding cleaning nozzle 604 through a conduit. The liquid inlet of the two diverters 605 merges and is connected to the drain of an external water source through a conduit.

[0017] By adopting the above technical solution, the cleaning nozzle 604 is tilted at a 45° angle to spray the cleaning liquid onto the surface of the filter belt 4, thereby cleaning the sludge attached to the surface of the filter belt 4.

[0018] The impurity adsorption component 8 includes a dust collection frame 801 and a hopper 802. The two dust collection frames 801 are securely mounted on the bottom frame 1 and the top frame 2 respectively by supports. The two hoppers 802 are securely mounted on the outer wall of the bottom frame 1 by supports. The air inlet end of the hopper 802 is connected to a dust collection pipe 803, and the other end of the dust collection pipe 803 is connected to the corresponding dust collection frame 801. The exhaust end of the hopper 802 is connected to a connecting pipe 804. A filter frame 805 is installed at the bottom of one end of the connecting pipe 804 inside the hopper 802.

[0019] By adopting the above technical solution, the two dust collection frames 801 correspond to the filter belt 4 paths of the bottom frame 1 and the top frame 2 respectively, and perform secondary cleaning of the impurities remaining on the surface of the filter belt 4 after cleaning, adsorb the fine sludge particles that have not been completely removed from the surface and pores of the filter belt 4, and improve the water permeability of the filter belt 4.

[0020] The bottom frame 1 and the top frame 2 are securely mounted on the side of the drive shaft 502 via a support. An impeller 715 that works in conjunction with the housing 714 is fixedly mounted at the end of the drive shaft 502. An air inlet pipe 710 is connected through the exhaust end of the housing 714, and the exhaust end of the housing 714 is conical and constricted. The other end of the air inlet pipe 710 is connected through the air inlet end of the vibrating housing 707, and an exhaust pipe 711 is connected through the air outlet end of the vibrating housing 707.

[0021] By adopting the above technical solution, the impeller 715 is driven to rotate synchronously during the rotation of the drive shaft 502 to generate airflow, and the exhaust end of the casing 714 is conical and constricted to increase the airflow velocity.

[0022] The top of the drainage frame 701 is securely mounted with a top cover 712 by bolts. Two symmetrically distributed air knives 713 are fixedly mounted at the bottom of the top cover 712. The other end of the exhaust pipe 711 is split and connected to the air inlet of the corresponding air knife 713.

[0023] By adopting the above technical solution, the airflow delivered by the exhaust pipe 711 is diverted and then passed into two symmetrically distributed air knives 713. The air knives 713 convert the airflow into a high-intensity, narrow-width uniform air curtain. The air curtain is blown at a 45° angle toward the filter belt 4, quickly peeling off the water stains on the surface of the filter belt 4.

[0024] The two drive shafts 502 are connected by a synchronous pulley transmission group. A servo motor 510 is fixedly installed on the outer wall of the bottom frame 1 near the lower drive shaft 502 by a base, and the drive end of the servo motor 510 is connected to the corresponding drive shaft 502 by a coupling.

[0025] By adopting the above technical solution, the servo motor 510 drives the lower drive shaft 502 to rotate, while the synchronous gear transmission group drives the upper drive shaft 502 to rotate synchronously.

[0026] Guide posts 704 are fixedly installed at the four corners of the bottom end of the vibration frame 702. A guide frame 705 is slidably sleeved on the outer wall of the guide post 704, and the bottom end of the guide frame 705 is fixedly connected to the drainage frame 701. Two symmetrically distributed second buffer springs 706 are provided on the inner wall of the guide frame 705 in the vertical direction. The upper second buffer spring 706 is sleeved on the outer wall of the guide post 704, and the lower second buffer spring 706 is located between the guide post 704 and the bottom end of the inner wall of the guide frame 705.

[0027] By adopting the above technical solution, the guide post 704 slides in the guide frame 705, providing constraint for the vertical vibration of the vibration frame 702.

[0028] The outer wall of the sliding rod 504 is fitted with two symmetrically distributed buffer springs 509.

[0029] By adopting the above technical solution, the two No. 1 buffer springs 509 and the buffer plate 505 cooperate with each other to make the filter belt 4 vibrate.

[0030] The inner walls of the bottom frame 1 and the top frame 2 are provided with floating rollers 9 that cooperate with the filter belt 4 on the side near the desliming assembly 5. Two symmetrically distributed floating rollers 9 are fixedly installed on the inner wall of the drainage frame 701, and the two floating rollers 9 are located on both sides of the buffer roller 703.

[0031] By adopting the above technical solution, the floating roller 9 disperses the local stress generated by the vibration of the filter belt 4, so that the filter belt 4 always maintains a suitable tension.

[0032] The inner wall of the cleaning frame 601 is provided with six auxiliary rollers 606 arranged in a trapezoidal shape and used in conjunction with the filter belt 4.

[0033] By adopting the above technical solution, six auxiliary rollers 606 form multi-point support on the running path of the filter belt 4, ensuring that the filter belt 4 always remains flat, providing a basis for the uniform rinsing of the subsequent spray washing component 6.

[0034] Working principle: In the actual process of sludge dewatering, firstly, as... Figure 1 and Figure 3 As shown, sludge is fed onto the lower filter belt 4 from the left feed port. The lower and upper filter belts 4 are driven by the corresponding drive rollers and tension rollers (not shown in the figure) to transport the sludge to the right, so that the sludge is between the two filter belts 4. Then, under the guidance of a series of orderly arranged guide rollers 3 in an S-shape, the tension of the filter belts 4 themselves forms a squeezing and shearing force on the material, squeezing out the capillary water in the sludge, thereby obtaining a sludge cake with a high solids content. The sludge cake after dewatering is discharged from the discharge port on the right, and some sludge will adhere to the surface of the filter belt 4. Then, as Figure 10 and Figure 11 As shown, the servo motor 510 is turned on, and the servo motor 510 drives the lower drive shaft 502 to rotate. The upper drive shaft 502 rotates synchronously through the synchronous wheel transmission group. The cam 508 on the drive shaft 502 periodically pushes the limit block 507 on the support frame 506, so that the buffer plate 505 slides back and forth in the fixed cylinder 503 through the sliding rod 504. Under the buffer impact of the first buffer spring 509, the buffer plate 505 of the filter belt 4 vibrates. The vibration is transmitted to the filter belt 4 through the buffer plate 505, which in turn drives the filter belt 4 to vibrate synchronously, which promotes the peeling of sludge attached to the surface of the filter belt 4 after dewatering. like Figure 4 and Figure 12 As shown, after the filter belt 4 is stripped of sludge, it enters the cleaning frame 601 under the guidance of the guide roller 3 and is conveyed along the preset direction of the auxiliary roller 606. The cleaning liquid from the external water source is collected and then evenly distributed to each cleaning nozzle 604 through two symmetrically distributed diverters 605. The cleaning nozzle 604 sprays the cleaning liquid at a 45° angle along the entry direction of the filter belt 4 towards the contact surface between the filter belt 4 and the sludge, impacting the sludge attached to the surface of the filter belt 4 and penetrating along the pore direction of the filter belt 4 to flush out the fine particles embedded in the pores. Subsequently, as Figure 8 , Figure 9 and Figure 10 As shown, the cleaned filter belt 4 enters the drain frame 701 under the guidance of the guide roller 3. During the rotation of the drive shaft 502, the impeller 715 rotates synchronously at high speed. The high-speed rotation of the impeller 715 generates a high-pressure airflow at the exhaust end of the casing 714, and subsequently forms a negative pressure adsorption airflow at the inlet end. The high-pressure airflow generated by the impeller 715 enters the vibrating casing 707 through the inlet pipe 710, driving the rotating shaft 708 and the eccentric turbine 709 to rotate. Figure 7 , Figure 8 and Figure 14As shown, the eccentric turbine 709 generates centrifugal force due to the shift in its center of gravity, causing the vibrating frame 702 to vibrate at high frequency along the guide post 704 within the guide frame 705. The vibrating frame 702 transmits the vibration to the filter belt 4 through the buffer roller 703, prompting the water in the pores of the filter belt 4 to quickly escape. Simultaneously, as... Figure 5 As shown, the airflow from the vibrating housing 707 is diverted to the air knife 713 via the exhaust pipe 711. The air knife 713 converts the airflow into a 45° inclined high-intensity air curtain, which quickly peels off water stains from the surface of the filter belt 4, working in conjunction with the vibration drainage. Finally, the dehydrated filter belt 4 is conveyed along the guide roller 3 to the feed inlet and passes through the dust collection frame 801. The air inlet end of the housing 714 will form a negative pressure adsorption airflow, which is conducted to the dust collection frame 801 through the connecting pipe 804, the hopper 802 and the dust collection pipe 803. The dust collection frame 801 adsorbs the fine sludge particles, fiber debris and other impurities that have not been completely removed from the surface and pores of the filter belt 4. The impurities are carried by the airflow and enter the hopper 802 through the dust collection pipe 803. Large particles of impurities settle due to gravity, while fine impurities are filtered by the filter frame 805. The clean airflow is discharged through the connecting pipe 804, ensuring the water permeability of the filter belt 4. The hopper 802 is detachable, and the impurities inside the hopper 802 can be cleaned periodically. Water discharged from the cleaning box 601 and the drainage box 701 is uniformly directed into the corresponding drainage ditch through external pipes (not shown in the figure) and finally discharged in a centralized manner.

[0035] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A belt conveyor for sludge treatment, comprising a bottom frame (1) and a top frame (2), characterized in that: The top frame (2) is securely installed on the top of the bottom frame (1) by bolts. Several guide rollers (3) are rotatably provided inside the bottom frame (1) and the top frame (2). Filter belts (4) are respectively fitted on the outer walls of the guide rollers (3) in the bottom frame (1) and the top frame (2) for sludge dewatering. A sludge dewatering component (5) is provided at the end of the bottom frame (1) and the top frame (2) near the discharge port. A spray washing component (6) and a vibration composite drainage component (7) are provided in the middle of the bottom frame (1) and the top frame (2). An impurity adsorption component (8) is provided at the end of the bottom frame (1) and the top frame (2) near the feed inlet. The desliming assembly (5) includes a horizontal plate (501). The two horizontal plates (501) are fixedly installed on the inner walls of the bottom frame (1) and the top frame (2) by bolts. A drive shaft (502) is rotatably installed on the outer side of the horizontal plate (501) through a bearing seat. The two drive shafts (502) are rotatably installed on the corresponding bottom frame (1) and top frame (2) respectively. A fixed cylinder (503) is fixedly installed at each of the four corners of the outer side of the horizontal plate (501). A sliding rod (504) is slidably installed on the inner wall of the fixed cylinder (503). A buffer plate (505) is fixedly installed at the end of the sliding rod (504). A support frame (506) is fixedly installed in the middle of the inner wall of the buffer plate (505). Two symmetrically distributed limit blocks (507) are fixedly installed on the side of the support frame (506) near the horizontal plate (501). Two cams (508) that cooperate with the limit blocks (507) are fixedly sleeved on the outer wall of the drive shaft (502). The vibration composite drainage component (7) includes a drainage frame (701), two drainage frames (701) are fixedly installed on the inner walls of the bottom frame (1) and the top frame (2) by bolts respectively. A vibration frame (702) is provided inside the drainage frame (701). Buffer rollers (703) are rotatably installed on both sides of the top of the vibration frame (702). A vibration shell (707) is fixedly installed on the middle of the bottom of the vibration frame (702) by bolts. A rotating shaft (708) is rotatably installed on the middle of the inner wall of the vibration shell (707). An eccentric turbine (709) is fixedly sleeved on the outer wall of the rotating shaft (708).

2. The belt conveyor thickening and dewatering equipment for sludge treatment as described in claim 1, characterized in that, The spray washing assembly (6) includes a cleaning frame (601). Two cleaning frames (601) are fixedly installed in the middle of the inner wall of the bottom frame (1) and the top frame (2) by bolts. A top plate (602) is fixedly installed at the top of the cleaning frame (601) by bolts. A fixing frame (603) is fixedly installed at the bottom of the top plate (602) by bolts. Several equally spaced cleaning nozzles (604) are fixedly installed on the fixing frame (603). Two symmetrically distributed diverters (605) are fixedly installed at the top of the top plate (602). The liquid outlet of the two diverters (605) is connected to the corresponding cleaning nozzle (604) through a conduit. After the liquid inlet of the two diverters (605) merges, it is connected to the drain of an external water source through a conduit.

3. The belt conveyor thickening and dewatering equipment for sludge treatment as described in claim 1, characterized in that, The impurity adsorption component (8) includes a dust collection frame (801) and a hopper (802). The two dust collection frames (801) are respectively mounted on the bottom frame (1) and the top frame (2) by supports. The two hoppers (802) are mounted on the outer wall of the bottom frame (1) by supports. The air inlet end of the hopper (802) is connected to a dust collection pipe (803), and the other end of the dust collection pipe (803) is connected to the corresponding dust collection frame (801). The exhaust end of the hopper (802) is connected to a connecting pipe (804). A filter frame (805) is installed at the bottom of one end of the connecting pipe (804) inside the hopper (802).

4. The belt conveyor thickening and dewatering equipment for sludge treatment as described in claim 1, characterized in that, The bottom frame (1) and top frame (2) are securely mounted on the side of the drive shaft (502) via a support. An impeller (715) that works in conjunction with the housing (714) is fixedly mounted at the end of the drive shaft (502). An air inlet pipe (710) is connected through the exhaust end of the housing (714), and the exhaust end of the housing (714) is conical and constricted. The other end of the air inlet pipe (710) is connected through the air inlet end of the vibrating housing (707), and an exhaust pipe (711) is connected through the air outlet end of the vibrating housing (707).

5. The belt conveyor thickening and dewatering equipment for sludge treatment as described in claim 1, characterized in that, The top of the drainage frame (701) is securely installed with a top cover (712) by bolts. Two symmetrically distributed air knives (713) are fixedly installed at the bottom of the top cover (712). The other end of the exhaust pipe (711) is split and connected to the air inlet of the corresponding air knife (713).

6. The belt conveyor thickening and dewatering equipment for sludge treatment as described in claim 1, characterized in that, The two drive shafts (502) are connected by a synchronous pulley transmission group. A servo motor (510) is fixedly installed on the outer wall of the bottom frame (1) near the lower drive shaft (502) by a base. The drive end of the servo motor (510) is connected to the corresponding drive shaft (502) by a coupling.

7. The belt conveyor thickening and dewatering equipment for sludge treatment as described in claim 1, characterized in that, Guide posts (704) are fixedly installed at the four corners of the bottom of the vibration frame (702). A guide frame (705) is slidably sleeved on the outer wall of the guide post (704), and the bottom end of the guide frame (705) is fixedly connected to the drainage frame (701). Two symmetrically distributed second buffer springs (706) are provided on the inner wall of the guide frame (705) in the vertical direction. The upper second buffer spring (706) is sleeved on the outer wall of the guide post (704), and the lower second buffer spring (706) is located between the bottom end of the guide post (704) and the inner wall of the guide frame (705).

8. The belt conveyor thickening and dewatering equipment for sludge treatment as described in claim 1, characterized in that, The outer wall of the sliding rod (504) is fitted with two symmetrically distributed buffer springs (509).

9. A belt conveyor for sludge treatment as described in claim 1, characterized in that, The bottom frame (1) and the top frame (2) are provided with floating rollers (9) on the side of the inner wall near the desliming assembly (5) for use with the filter belt (4). Two symmetrically distributed floating rollers (9) are fixedly installed on the inner wall of the drainage frame (701), and the two floating rollers (9) are located on both sides of the buffer roller (703).

10. A belt conveyor for sludge treatment as described in claim 2, characterized in that, The inner wall of the cleaning frame (601) is provided with six auxiliary rollers (606) arranged in a trapezoidal shape and used in conjunction with the filter belt (4).

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