Sludge dewatering device for environmental protection

Abstract

The utility model relates to the technical field of sludge dewatering, and discloses a sludge dewatering device for environmental protection, which comprises a dewatering barrel, a motor I is fixedly connected to the middle side of the top of the dewatering barrel, a transmission rod is fixedly connected to the bottom of the motor I, and two connecting blocks are fixedly connected to the periphery of the transmission rod. A connecting block is arranged in the dewatering barrel, a plurality of uniformly distributed grinding rollers are fixedly connected to the periphery of the connecting block, a protective shell is fixedly connected to the ends, away from the connecting block, of the grinding rollers, a scraping plate is slidably connected to the interior of the protective shell, two filter plates are slidably connected to the interior of the dewatering barrel, and protruding blocks are fixedly connected to the front side and the rear side of the top of each filter plate. According to the sludge dewatering device, the filter plate reciprocates up and down in the dewatering barrel, so that the blockage of the filter screen is reduced, the reduction of the working efficiency caused by the blockage of the filter screen is avoided, the two cutting rollers are driven to rotate relatively through the gear I and the gear II, and larger sludge blocks can be cut.

Description

Technical Field

[0001] The utility model relates to the technical field of sludge dewatering, in particular to a sludge dewatering device for environmental protection. Background Art

[0002] Sludge is a by-product in the process of sewage treatment, usually referring to the solid waste or precipitated substances generated during the treatment of sewage or wastewater due to physical, chemical and biological treatment processes. Sludge contains a large amount of water as well as various organic matters, inorganic matters, heavy metals, pathogens, bacteria and other components;

[0003] A sludge dewatering device for environmental protection is a device used to remove water from sludge, mainly used in sewage treatment plants, industrial wastewater treatment and other fields. Its purpose is to reduce the volume and weight of sludge, lower the transportation and treatment costs, and at the same time reduce environmental pollution and promote the resource utilization of sludge;

[0004] In the existing sludge dewatering devices, their filter screens are all fixed. During long-term operation, solid particles and impurities in the sludge will gradually accumulate on the filter screen, resulting in the slow blockage of the filter screen. As the degree of blockage increases, the filtration efficiency will gradually decrease. For this reason, a sludge dewatering device for environmental protection is proposed to solve the above problems. Content of the Utility Model

[0005] In order to make up for the above deficiencies, the utility model provides a sludge dewatering device for environmental protection, aiming to improve the problem of reduced filtration efficiency caused by the blockage of the filter screen in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A sludge dewatering device for environmental protection includes a dewatering barrel. A first motor is fixedly connected to the middle side of the top of the dewatering barrel. A transmission rod is fixedly connected to the bottom of the first motor. Two connecting blocks are fixedly connected to the outer periphery of the transmission rod. A plurality of evenly distributed rolling rollers are fixedly connected to the outer periphery of the connecting blocks. A protective shell is fixedly connected to the end of the rolling roller far away from the connecting block. A scraper is slidably connected to the inside of the protective shell. Two filter plates are slidably connected to the inside of the dewatering barrel. Protrusions are fixedly connected to the front and rear sides of the top of each filter plate. Sliders are fixedly connected to the front and rear sides of each filter plate. Sleeve pipes are fixedly connected to the bottoms of the two sliders. A sliding rod is slidably connected to the inside of each sleeve pipe. A compression spring is fixedly connected to the bottom of each sleeve pipe. Two water delivery pipes are fixedly connected to the bottom of the dewatering barrel. The end of each water delivery pipe far away from the dewatering barrel is fixedly connected to a water storage tank. Two conveying pipes are fixedly connected to the right side of the dewatering barrel. The end of each conveying pipe far away from the dewatering barrel is fixedly connected to a sludge storage barrel. A processing assembly is arranged at the top of the dewatering barrel, and the processing assembly is used for preprocessing the sludge;

[0008] As a further description of the above technical solution:

[0009] The processing component includes two fixing frames, both of the two fixing frames are fixedly connected to the top of the dehydration barrel, a pretreatment box is fixedly connected to the top of the two fixing frames, a mud dumping pipe is fixedly connected to the top of the pretreatment box, a second motor is fixedly connected to the right side inside the pretreatment box, a screw conveyor plate is fixedly connected to the output end of the second motor, a first gear and a second gear are respectively rotatably connected to the front and rear sides inside the pretreatment box, the first gear meshes with the second gear, cutting rollers are fixedly connected to the left sides of the first gear and the second gear, and a connection component is arranged on the outer periphery of the output end of the second motor, and the connection component is used for transmitting power;

[0010] As a further description of the above technical solution:

[0011] The connection component includes a first belt pulley, the first belt pulley is fixedly connected to the outer periphery of the output end of the second motor, a second belt pulley is fixedly connected to the right side of the first gear, and a belt is sleeved on the outer peripheries of the first belt pulley and the second belt pulley;

[0012] As a further description of the above technical solution:

[0013] A switch door is rotatably connected to the front side of the mud storage barrel, and a handle is fixedly connected to the front side of the switch door;

[0014] As a further description of the above technical solution:

[0015] A communication port is opened on the left side inside the pretreatment box;

[0016] As a further description of the above technical solution:

[0017] Sliding grooves are opened on the front and rear sides inside the dehydration barrel, and two sliders are respectively slidably connected inside the two sliding grooves;

[0018] As a further description of the above technical solution:

[0019] A plurality of uniformly distributed springs are fixedly connected to the side of the scraping plate close to the protective shell, and one ends of the plurality of springs far away from the scraping plate are fixedly connected inside the protective shell;

[0020] As a further description of the above technical solution:

[0021] Two connecting pipes are fixedly connected to the left side of the top of the dehydration barrel, and one ends of the two connecting pipes far away from the dehydration barrel are fixedly connected to the left side of the bottom of the pretreatment box.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the present utility model, the rotation of the transmission rod is controlled by the first motor, which can drive the rotation of the rolling roller. The slider drives the sleeve to move and compress the compression spring, enabling the filter plate to reciprocate up and down in the dewatering barrel, thereby reducing the blockage of the filter screen and avoiding the reduction of work efficiency caused by the blockage of the filter screen. By arranging two filter plates in the dewatering barrel, multi-stage dehydration of the sludge can be carried out.

[0024] 2. In the present utility model, the rotation of the auger plate is controlled by the second motor, which can quantitatively and automatically convey the sludge. The first gear and the second gear drive the two cutting rollers to rotate relatively, which can cut larger sludge blocks and avoid damage to the filter plate and the rolling roller due to the large size of the sludge blocks. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a three-dimensional schematic diagram of a sludge dewatering device for environmental protection proposed by the present utility model;

[0026] Figure 2 is a structural schematic diagram of the water delivery pipe of a sludge dewatering device for environmental protection proposed by the present utility model;

[0027] Figure 3 is a structural schematic diagram of the filter plate of a sludge dewatering device for environmental protection proposed by the present utility model;

[0028] Figure 4 is a structural schematic diagram of the auger plate of a sludge dewatering device for environmental protection proposed by the present utility model;

[0029] Figure 5 is a structural schematic diagram of the spring of a sludge dewatering device for environmental protection proposed by the present utility model;

[0030] Figure 6 is a structural schematic diagram of the sleeve of a sludge dewatering device for environmental protection proposed by the present utility model.

[0031] LEGEND DESCRIPTION:

[0032] 1. Dewatering barrel; 2. Water delivery pipe; 3. Water storage tank; 4. Delivery pipe; 5. Sludge storage barrel; 6. Opening and closing door; 7. Handle; 8. First motor; 9. Transmission rod; 10. Connecting block; 11. Rolling roller; 12. Protective shell; 13. Spring; 14. Scraper; 15. Filter plate; 16. Convex block; 17. Slider; 18. Sleeve; 19. Slide bar; 20. Compression spring; 21. Chute; 22. Connecting pipe; 23. Fixed frame; 24. Pretreatment box; 25. Mud dumping pipe; 26. Second motor; 27. First pulley; 28. Belt; 29. Second pulley; 30. Auger plate; 31. Communication port; 32. First gear; 33. Second gear; 34. Cutting roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0034] Refer to Figure 1 , Figure 3 , Figure 5 , Figure 6, an embodiment provided by the present utility model: a sludge dewatering device for environmental protection, including a dewatering barrel 1. The dewatering barrel 1 is a container for dewatering sludge. A first motor 8 is fixedly connected to the middle side of the top of the dewatering barrel 1. A transmission rod 9 is fixedly connected to the bottom of the first motor 8. The first motor 8 is a Y-series three-phase asynchronous motor, and its specific model is Y132M-4. Two connecting blocks 10 are fixedly connected to the outer periphery of the transmission rod 9. The transmission rod 9 is connected to the first motor 8. The first motor 8 controls the rotation of the transmission rod 9, and correspondingly drives the connecting blocks 10 to rotate together. A plurality of evenly distributed rolling rollers 11 are fixedly connected to the outer periphery of the connecting blocks 10. The rolling rollers 11 are mainly used for rolling the sludge to separate the sewage inside the sludge from the sludge. The rolling rollers 11 are mainly made of stainless steel material, and the specific model is 316 stainless steel. One end of the rolling roller 11 away from the connecting block 10 is fixedly connected to a protective shell 12. A scraper 14 is slidably connected inside the protective shell 12. A plurality of evenly distributed springs 13 are fixedly connected to the side of the scraper 14 close to the protective shell 12. One ends of the plurality of springs 13 away from the scraper 14 are all fixedly connected inside the protective shell 12. The protective shell 12 is used to protect the scraper 14 and the springs 13. The springs 13 mainly provide an elastic reaction force to support the scraper 14 to always abut against the inside of the dewatering barrel 1, so as to avoid sludge adhering to the inner wall of the dewatering barrel 1. Two filter plates 15 are slidably connected inside the dewatering barrel 1. The filter plates 15 are used to separate the sludge and the sewage. The filter plates 15 are mainly made of stainless steel material, specifically 304 stainless steel. Convex blocks 16 are fixedly connected to the front and rear sides of the top of the filter plates 15. The convex blocks 16 are used to contact the protective shell 12, so that the filter plates 15 can move downward. Sliders 17 are fixedly connected to the front and rear sides of the filter plates 15. The sliders 17 are connected to the filter plates 15. When the filter plates 15 move, the sliders 17 can be driven to move together. A sleeve 18 is fixedly connected to the bottom of each of the two sliders 17. A sliding rod 19 is slidably connected inside the sleeve 18. A compression spring 20 is fixedly connected to the bottom of the sleeve 18. The sleeve 18 is connected to the slider 17. When the filter plates 15 and the sliders 17 move together, the sleeve 18 can be driven to move together, and the compression spring 20 is used to provide elastic support to enable the filter plates 15 to reset. Chutes 21 are opened on the front and rear sides inside the dewatering barrel 1. The two sliders 17 are respectively slidably connected inside the two chutes 21. The chutes 21 are used to accommodate the sliding of the sliders 17.

[0035] Refer to Figure 1 , Figure 2 , Figure 4, a processing component is provided at the top of the dehydration bucket 1. The processing component is used for preprocessing sludge. The processing component includes two fixing frames 23. Both of the two fixing frames 23 are fixedly connected to the top of the dehydration bucket 1. A pretreatment box 24 is fixedly connected to the top of the two fixing frames 23. The fixing frame 23 is used to connect the pretreatment box 24 and the dehydration bucket 1. Two connecting pipes 22 are fixedly connected to the left side of the top of the dehydration bucket 1. One end of each of the two connecting pipes 22 away from the dehydration bucket 1 is fixedly connected to the left side of the bottom of the pretreatment box 24. The connecting pipe 22 is used to transport sludge into the dehydration bucket 1. Its main material is made of polyethylene material. A mud pouring pipe 25 is fixedly connected to the top of the pretreatment box 24. The mud pouring pipe 25 is used to conveniently pour sludge into the pretreatment box 24. A second motor 26 is fixedly connected to the right side inside the pretreatment box 24. A communication port 31 is provided on the left side inside the pretreatment box 24. The output end of the second motor 26 is fixedly connected to a screw blade 30. The second motor 26 is the same as the first motor 8, both are Y series three-phase asynchronous motors, and the model is Y132M-4. The front and rear sides inside the pretreatment box 24 are respectively rotatably connected with a first gear 32 and a second gear 33. The first gear 32 and the second gear 33 are meshed with each other. The first gear 32 and the second gear 33 are used for meshing transmission, with the same rotational speed and opposite rotation directions. The first gear 32 and the second gear 33 are mainly made of alloy steel, specifically 20CrMnTi. A cutting roller 34 is fixedly connected to the left side of both the first gear 32 and the second gear 33. The cutting roller 34 is mainly used for cutting larger sludge blocks. The cutting roller 34 is also made of 316 stainless steel material. A connection component is provided on the outer periphery of the output end of the second motor 26. The connection component is used for transmitting power. The connection component includes a first belt pulley 27. The first belt pulley 27 is fixedly connected to the outer periphery of the output end of the second motor 26. A second belt pulley 29 is fixedly connected to the right side of the first gear 32. A belt 28 is sleeved on the outer peripheries of the first belt pulley 27 and the second belt pulley 29. The belt 28 is used to transmit the rotation of the first belt pulley 27 to the second belt pulley 29, so as to transmit the power of the second motor 26 and make the first gear 32 rotate.

[0036] Refer to Figure 1 - Figure 2 , two water pipes 2 are fixedly connected to the bottom of the dehydration bucket 1. One end of each of the water pipes 2 away from the dehydration bucket 1 is fixedly connected to a water storage tank 3. The water pipe 2 is used to transport the separated sewage into the water storage tank 3. It is mainly made of polyvinyl chloride. Two conveying pipes 4 are fixedly connected to the right side of the dehydration bucket 1. One end of each of the two conveying pipes 4 away from the dehydration bucket 1 is fixedly connected to a sludge storage bucket 5. The conveying pipe 4 is used to transport sludge into the sludge storage bucket 5. The conveying pipe 4 is made of polyethylene material and has corrosion resistance. A hinged door 6 is rotatably connected to the front side of the sludge storage bucket 5. A handle 7 is fixedly connected to the front side of the hinged door 6. The hinged door 6 is used to provide the sealing property of the sludge storage bucket 5. The handle 7 is used to conveniently control the hinged door 6.

[0037] Working principle: When using the dehydration device, sludge is transported into the pretreatment tank 24 through the sludge discharge pipe 25. Subsequently, the second motor 26 can be started to control the auger plate 30 by the second motor 26, so as to automatically and quantitatively transport the sludge. When the second motor 26 drives the auger plate 30 to rotate, the first pulley 27 fixed to the outer periphery of the output end of the second motor 26 rotates accordingly. Thus, the belt 28 can transmit the rotation of the first pulley 27 to the second pulley 29. Furthermore, the second pulley 29 controls the rotation of the first gear 32. Transmitting power through the first pulley 27, the belt 28, and the second pulley 29 can save power resources. When the first gear 32 rotates, it will drive the second gear 33 to rotate together. The rotational speeds of the first gear 32 and the second gear 33 are the same, but their rotation directions are opposite rotations. Thus, the two cutting rollers 34 rotate relative to each other to shear the transported sludge, preventing larger sludge blocks from being unable to enter the dehydration barrel 1 and damaging the components inside the dehydration barrel 1;

[0038] After the sludge is sheared, the sludge enters the dehydration barrel 1 through the connecting pipe 22. Subsequently, the first motor 8 can be started to control the transmission rod 9 to rotate. When the transmission rod 9 rotates, the rolling rollers 11 connected through the connecting block 10 will rotate together to roll the sludge entering the inside of the dehydration barrel 1. Because there are two filter plates 15 inside the dehydration barrel 1, the filter hole densities and sizes of the two filter plates 15 are different. Thus, a part of the sludge will directly fall through the first filter plate 15 to the second filter plate 15. The two filter plates 15 can perform multi-stage dehydration rolling on the sludge. The scraper 14 abuts against the inner wall of the dehydration barrel 1. When the rolling roller 11 rotates, the scraper 14 will always contact the inner wall of the dehydration barrel 1 through the elastic reaction force exerted by the spring 13, preventing sludge from adhering to the inner wall of the dehydration barrel 1. When the scraper 14 contacts the convex block 16 during rotation, it will exert a thrust on the convex block 16, causing the convex block 16 to move downward. When the convex block 16 moves downward, it will drive the filter plate 15 to move downward together. Furthermore, the two sliders 17 drive the two sleeves 18 to move along the two sliding rods 19 respectively and compress the two compression springs 20. When the scraper 14 separates from the convex block 16, the compression spring 20 will reset and generate a thrust to push the sleeve 18 to reset upward. At this time, the filter plate 15 will also move upward to reset. After this action, the filter plate 15 completes the up and down movement. When the scraper 14 continues to rotate, the filter plate 15 will also correspondingly continue to move up and down reciprocally. The movement of the filter plate 15 itself can reduce the blockage of its own sludge;

[0039] After the dehydration treatment, the sewage is transported into the storage tank 3 through the water delivery pipe 2 for storage to facilitate the next purification treatment, and the sludge can be transported into the sludge storage barrel 5 through the delivery pipe 4 for storage, which is convenient for treatment.

[0040] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sludge dewatering device for environmental protection, comprising a dewatering barrel (1), characterized in that: A motor (8) is fixedly connected to the middle side of the top of the dewatering barrel (1), a transmission rod (9) is fixedly connected to the bottom of the motor (8), two connection blocks (10) are fixedly connected to the periphery of the transmission rod (9), a plurality of evenly distributed rolling rollers (11) are fixedly connected to the periphery of the connection block (10), a protective shell (12) is fixedly connected to one end of the rolling roller (11) away from the connection block (10), a scraper (14) is slidably connected to the inside of the protective shell (12), two filter plates (15) are slidably connected to the inside of the dewatering barrel (1), the front and rear sides of the top of the filter plate (15) are fixedly connected to protrusions (16), and the front and rear sides of the filter plate (15) are fixedly connected to A slider (17) is connected, the bottoms of the two sliders (17) are fixedly connected to a sleeve (18), the inside of the sleeve (18) is slidably connected to a slide rod (19), the bottom of the sleeve (18) is fixedly connected to a compression spring (20), the bottom of the dewatering barrel (1) is fixedly connected to two water pipes (2), one end of the water pipe (2) away from the dewatering barrel (1) is fixedly connected to a water storage tank (3), the right side of the dewatering barrel (1) is fixedly connected to two delivery pipes (4), one end of the two delivery pipes (4) away from the dewatering barrel (1) is fixedly connected to a sludge storage barrel (5), and a processing component is provided on the top of the dewatering barrel (1), and the processing component is used to pre-treat the sludge.

2. The sludge dewatering device for environmental protection according to claim 1, characterized in that: The processing assembly comprises two fixed frames (23), the two fixed frames (23) are fixedly connected to the top of the dewatering barrel (1), the tops of the two fixed frames (23) are fixedly connected to a pre-processing box (24), the top of the pre-processing box (24) is fixedly connected to a mud dumping pipe (25), the right side of the inside of the pre-processing box (24) is fixedly connected to a second motor (26), the output end of the second motor (26) is fixedly connected to a auger plate (30), the front and rear sides of the inside of the pre-processing box (24) are rotatably connected to a first gear (32) and a second gear (33), the first gear (32) and the second gear (33) are meshed, the left sides of the first gear (32) and the second gear (33) are fixedly connected to cutting rollers (34), and a connecting assembly is provided on the outer periphery of the output end of the second motor (26), the connecting assembly is used to transmit power.

3. The sludge dewatering device for environmental protection according to claim 2, characterized in that: The connecting assembly comprises a pulley 1 (27), wherein the pulley 1 (27) is fixedly connected to the outer periphery of the output end of the motor 2 (26), a pulley 2 (29) is fixedly connected to the right side of the gear 1 (32), and a belt (28) is sleeved on the outer periphery of the pulley 1 (27) and the pulley 2 (29).

4. The sludge dewatering device for environmental protection according to claim 1, characterized in that: The front side of the mud storage bucket (5) is rotatably connected to an opening and closing door (6), and the front side of the opening and closing door (6) is fixedly connected to a handle (7).

5. The sludge dewatering device for environmental protection according to claim 2, characterized in that: A communication port (31) is provided on the left side of the interior of the pretreatment box (24).

6. The sludge dewatering device for environmental protection according to claim 1, characterized in that: The dehydration barrel (1) is provided with sliding grooves (21) on both the front and rear sides thereof, and the two sliding blocks (17) are respectively slidably connected inside the two sliding grooves (21).

7. The sludge dewatering device for environmental protection according to claim 1, characterized in that: A plurality of evenly distributed springs (13) are fixedly connected to one side of the scraper (14) close to the protective shell (12), and ends of the plurality of springs (13) away from the scraper (14) are fixedly connected to the inside of the protective shell (12).

8. The sludge dewatering device for environmental protection according to claim 2, characterized in that: Two connecting pipes (22) are fixedly connected to the left side of the top of the dehydration barrel (1), and the ends of the two connecting pipes (22) away from the dehydration barrel (1) are fixedly connected to the left side of the bottom of the pretreatment box (24).

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