Sludge centrifugal concentration device

Abstract

The utility model relates to the field of sludge centrifugal concentration, in particular to a sludge centrifugal concentration device which comprises a bottom plate, the left side of the top of the bottom plate is in bolting connection with a water containing tank, the top of the water containing tank is in bolting connection with a shell, the left side of the shell is in bolting connection with a feeding box, and the front portion of the right side of the shell is in bolting connection with a sludge conveying box. The inner side of the sludge conveying box and the inner side of the feeding box are rotationally connected with first threaded feeding rods through bearings, the inner side of an inner cavity of the shell is in bolted connection with a filter screen pipe, the top of the feeding box communicates with a feeding box, and the lower portion of an inner cavity of the feeding box is rotationally connected with a rotating shaft through a bearing. Through the water containing tank, the shell, the feeding box, the sludge conveying box, the first threaded feeding rod, the feeding box and the like, sludge is centrifugally dewatered through rapid rotation of the first threaded feeding rod, and the effects that the sludge is stirred evenly before dewatering, the device is not prone to being blocked, and the sludge dewatering efficiency is improved can be achieved; the dehydration efficiency of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of sludge centrifugal concentration, in particular to a sludge centrifugal concentration device. Background Art

[0002] Sludge concentration is divided into gravity concentration method, flotation concentration method and centrifugal concentration method. The forms of water in sludge generally include: free water, capillary water, adsorbed water and internal water. Free water refers to the water existing in the gaps between sludge particles, or called interstitial water, accounting for about 70% of the sludge moisture. Capillary water refers to the water existing in the capillaries of sludge particles, accounting for about 20% of the sludge moisture. Adsorbed water and internal water refer to the adsorbed water adhering to the surface of sludge particles and the water existing inside them, accounting for about 10% of the moisture in the sludge. Reducing the moisture content of sludge can greatly reduce the volume of sludge for further disposal and utilization.

[0003] The existing sewage sludge dewatering device has the problem that the sludge is not stirred evenly before dewatering, which easily causes blockage of the device and affects the dewatering of the sludge. In addition, when the existing dewatering device is in use, the centrifugal mechanism is unstable during rotation, which easily causes insufficient dewatering of the sludge. In addition, most dewatering devices have a single structure and cannot fully dewater the sludge.

[0004] Therefore, it is necessary to invent a sludge centrifugal thickening device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a sludge centrifugal concentrating device which can effectively solve the above technical problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a sludge centrifugal thickening device, comprising a bottom plate, a water tank bolted to the left side of the top of the bottom plate, a shell bolted to the top of the water tank, a feed box bolted to the left side of the shell, a sludge conveying box bolted to the front of the right side of the shell, the inner sides of the sludge conveying box and the feed box are both rotatably connected to a first threaded feeding rod through a bearing, the inner side of the inner cavity of the shell is bolted to a filter mesh tube, the top of the feed box is connected to a loading box, the lower part of the inner cavity of the loading box is rotatably connected to a rotating shaft through a bearing, crushing blades are arranged and bolted on the surface of the rotating shaft, a dewatering box is bolted to the right side of the sludge conveying box, a first cylinder is bolted to the right side of the top of the dewatering box, a sealing plate is bolted to the other end of the first cylinder, and the front and rear sides of the sealing plate are slidably plugged into the inner side of the dewatering box, a second cylinder is bolted to the left side of the inner cavity of the dewatering box, an extrusion plate is bolted to the right side of the second cylinder, and a screen is provided on the right side of the bottom of the dewatering box.

[0007] Preferably, the back side of the sludge conveying box is connected to a hollow tube, and the inner side of the hollow tube is rotatably connected to a second threaded feeding rod through a bearing, so that the second threaded feeding rod can rotate in the hollow tube.

[0008] Preferably, the top of the hollow tube is bolted with a first drive motor, and the top of the second threaded feeding rod is bolted to the output end of the first drive motor, so that the first drive motor serves as a drive source to drive the second threaded feeding rod to rotate.

[0009] Preferably, the right side of the hollow tube is connected to a conveying pipe, and the other end of the conveying pipe is connected to the top of the dehydration box. When the second threaded feeding rod transfers the sludge to the top of the hollow tube, the sludge will enter the dehydration box through the conveying pipe.

[0010] Preferably, a driving wheel is bolted to the left side of the first threaded feeding rod, a second driving motor is bolted to the left side of the outer shell, and the left side of the driving wheel is bolted to the output end of the second driving motor, so that the second driving motor drives the driving wheel to rotate, and the driving wheel will synchronously drive the first threaded feeding rod to rotate in the outer shell during the rotation process.

[0011] Preferably, a driven wheel is bolted to the left side of the rotating shaft through the loading box, and the surface of the driven wheel and the surface of the driving wheel are both engaged with chains. The driven wheel and the driving wheel are connected by the chain, so that the driving wheel transmits the rotational power to the driven wheel through the chain.

[0012] Preferably, the right side of the water tank is connected to a first water outlet pipe, and the liquid centrifuged from the sludge by the device is discharged through the first water outlet pipe.

[0013] Preferably, the right side of the bottom of the dewatering box is connected to a filter box, the bottom of the filter box is connected to a second outlet pipe, and the second outlet pipe is connected to the middle of the first outlet pipe, so that the liquid separated from the sludge in the dewatering box is discharged through the second outlet pipe.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] 1. Through the water tank, shell, feed box, sludge conveying box, first threaded feed rod, feeding box and other components, the first threaded feed rod rotates rapidly to centrifugally dehydrate the sludge, which can achieve the effect of uniform mixing of the sludge before dehydration, and is not easy to cause clogging of the device, thereby improving the sludge dehydration efficiency and improving the dehydration efficiency of the device;

[0016] 2. Through the dewatering box, the first cylinder, the sealing plate, the second cylinder, the extrusion plate, the screen and other components, open the first cylinder, so that the first cylinder pushes the sealing plate upward to discharge the sludge from the dewatering box. This reciprocating process completes the secondary dehydration of the sludge. The sludge is concentrated through multiple processes, which reduces the moisture content in the sludge and improves the effect of sludge centrifugal concentration. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0018] Figure 1 This is a front view of the overall structure of the utility model;

[0019] Figure 2 This is a front sectional view of the overall structure of the utility model;

[0020] Figure 3 This is a side view of the internal connection structure of the loading box of the present utility model;

[0021] Figure 4 This is a front cross-sectional view of the internal connection structure of the dehydration box of the present utility model;

[0022] Figure 5 It is a side view of a part of the connection structure of the present utility model.

[0023] Description of reference numerals:

[0024] 1. Bottom plate; 2. Water tank; 3. Outer shell; 4. Feed box; 5. Sludge conveying box; 6. First threaded feed rod; 7. Loading box; 8. Rotating shaft; 9. Crushing blades; 10. Dehydration box; 11. First cylinder; 12. Sealing plate; 13. Second cylinder; 14. Extrusion plate; 15. Hollow tube; 16. Second threaded feed rod; 17. First drive motor; 18. Conveying pipe; 19. Drive wheel; 20. Second drive motor; 21. Driven wheel; 22. Chain; 23. First water outlet pipe; 24. Filter box; 25. Second water outlet pipe; 26. Filter mesh tube; 27. Screen. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0026] The utility model provides Figure 1-5The sludge centrifugal thickening device shown in the figure comprises a bottom plate 1, a water tank 2 is bolted to the left side of the top of the bottom plate 1, a shell 3 is bolted to the top of the water tank 2, a feed box 4 is bolted to the left side of the shell 3, a sludge conveying box 5 is bolted to the front of the right side of the shell 3, the inner sides of the sludge conveying box 5 and the feed box 4 are both rotatably connected to a first threaded feed rod 6 through a bearing, a filter mesh tube 26 is bolted to the inner side of the inner cavity of the shell 3, the top of the feed box 4 is connected to a feed box 7, and the lower part of the inner cavity of the feed box 7 is rotatably connected to the feed box 7 through a bearing. It is connected to a rotating shaft 8, and crushing blades 9 are arranged and bolted on the surface of the rotating shaft 8. A dewatering box 10 is bolted to the right side of the sludge conveying box 5, and a first cylinder 11 is bolted to the right side of the top of the dewatering box 10. A sealing plate 12 is bolted to the other end of the first cylinder 11, and the front and rear sides of the sealing plate 12 are slidably connected to the inner side of the dewatering box 10. A second cylinder 13 is bolted to the left side of the inner cavity of the dewatering box 10, and an extrusion plate 14 is bolted to the right side of the second cylinder 13. A screen 27 is provided on the right side of the bottom of the dewatering box 10.

[0027] The back of the sludge conveying box 5 is connected to a hollow pipe 15 , and the inner side of the hollow pipe 15 is rotatably connected to a second threaded feeding rod 16 via a bearing, so that the second threaded feeding rod 16 can rotate in the hollow pipe 15 .

[0028] The top of the hollow tube 15 is bolted with a first drive motor 17 , and the top of the second threaded feed rod 16 is bolted to the output end of the first drive motor 17 , so that the first drive motor 17 serves as a drive source to drive the second threaded feed rod 16 to rotate.

[0029] The right side of the hollow tube 15 is connected to a conveying pipe 18 , and the other end of the conveying pipe 18 is connected to the top of the dehydration box 10 . When the second threaded feeding rod 16 transfers the sludge to the top of the hollow tube 15 , the sludge will enter the dehydration box 10 through the conveying pipe 18 .

[0030] A drive wheel 19 is bolted to the left side of the first threaded feeding rod 6, and a second drive motor 20 is bolted to the left side of the outer shell 3. The left side of the drive wheel 19 is bolted to the output end of the second drive motor 20, so that the second drive motor 20 drives the drive wheel 19 to rotate. During the rotation process, the drive wheel 19 will synchronously drive the first threaded feeding rod 6 to rotate in the outer shell 3.

[0031] A driven wheel 21 is bolted to the left side of the rotating shaft 8 through the loading box 7. A chain 22 is engaged with the surface of the driven wheel 21 and the surface of the driving wheel 19. The driven wheel 21 is connected to the driving wheel 19 through the chain 22, so that the driving wheel 19 transmits the rotational power to the driven wheel 21 through the chain 22.

[0032] The right side of the water tank 2 is connected to a first water outlet pipe 23 , through which the liquid centrifuged from the sludge by the device is discharged.

[0033] The right side of the bottom of the dehydration box 10 is connected to a water filter box 24, and the bottom of the water filter box 24 is connected to a second water outlet pipe 25, and the second water outlet pipe 25 is connected to the middle of the first water outlet pipe 23, and the liquid separated from the sludge in the dehydration box 10 is discharged through the second water outlet pipe 25.

[0034] Refer to the instruction manual Figure 1-5 Working principle: through the water tank 2, shell 3, feed box 4, sludge conveying box 5, first threaded feed rod 6, feeding box 7 and other components, during the use of the device, the second drive motor 20 drives the driven wheel 21 to rotate through the drive wheel 19 and the chain 22, and then the sludge to be concentrated is put into the feeding box 7, the second drive motor 20 is started, and the rotating shaft 8 and the first threaded feed rod 6 are synchronously driven to rotate through the chain 22. During the rotation of the rotating shaft 8, the crushing blades 9 on its surface will be driven to rotate rapidly, and the crushing blades 9 rotate to crush the sludge. The mud and flocculant are stirred to fully mix the two. The first threaded feeding rod 6 transports the sludge from the feeding box 7 to the inside of the shell 3 and allows the sludge to enter the inside of the filter mesh tube 26. The first threaded feeding rod 6 cooperates with the filter mesh tube 26 to transport and squeeze the sludge. The rapid rotation of the first threaded feeding rod 6 can centrifuge the sludge to achieve uniform mixing of the sludge before dehydration, which is not easy to cause clogging of the device and improves the dehydration efficiency of the device. 12, the second cylinder 13, the extrusion plate 14, the screen 27 and other components. During the use of the device, the first threaded feeding rod 6 transports the sludge that has undergone preliminary centrifugal concentration to the sludge conveying box 5. Due to the height difference between the sludge conveying box 5 and the hollow tube 15, the sludge in the sludge conveying box 5 will fall into the hollow tube 15. At this time, the first driving motor 17 is turned on to drive the second threaded feeding rod 16 to rotate. The second threaded feeding rod 16 transports the sludge from the bottom of the hollow tube 15 to the upper part of the hollow tube 15 and passes through the conveying The pipe 18 sends the sludge into the dewatering box 10. At this time, the second cylinder 13 is turned on, so that the second cylinder 13 pushes the extrusion plate 14 to move to the right, and the sludge in the dewatering box 10 is squeezed and dehydrated. The water flow will pass through the screen 27 and enter the lower water filter box 24. The first cylinder 11 is turned on, so that the first cylinder 11 pushes the sealing plate 12 upward to discharge the sludge from the dewatering box 10. This reciprocating process completes the secondary dehydration of the sludge. The sludge is concentrated through multiple processes, which reduces the moisture content in the sludge and improves the effect of sludge centrifugal concentration.

[0035] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A sludge centrifugal thickening device, comprising a bottom plate (1), characterized in that: The left side of the top of the bottom plate (1) is bolted with a water tank (2), the top of the water tank (2) is bolted with a shell (3), the left side of the shell (3) is bolted with a feed box (4), the front right side of the shell (3) is bolted with a sludge conveying box (5), the inner sides of the sludge conveying box (5) and the feed box (4) are both rotatably connected to a first threaded feed rod (6) through a bearing, the inner side of the inner cavity of the shell (3) is bolted with a filter mesh tube (26), the top of the feed box (4) is connected to a feed box (7), the lower part of the inner cavity of the feed box (7) is rotatably connected to a rotating shaft (8) through a bearing, Crushing blades (9) are arranged and bolted on the surface of the rotating shaft (8), a dewatering box (10) is bolted on the right side of the sludge conveying box (5), a first cylinder (11) is bolted on the right side of the top of the dewatering box (10), a sealing plate (12) is bolted on the other end of the first cylinder (11), and the front and rear sides of the sealing plate (12) are slidably connected to the inner side of the dewatering box (10), a second cylinder (13) is arranged and bolted on the left side of the inner cavity of the dewatering box (10), an extrusion plate (14) is bolted on the right side of the second cylinder (13), and a screen (27) is provided on the right side of the bottom of the dewatering box (10).

2. A sludge centrifugal concentrating device according to claim 1, characterized in that: The back of the sludge conveying box (5) is connected to a hollow pipe (15), and the inner side of the hollow pipe (15) is rotatably connected to a second threaded feeding rod (16) via a bearing.

3. A sludge centrifugal concentrating device according to claim 2, characterized in that: The top of the hollow tube (15) is bolted to a first drive motor (17), and the top of the second threaded feeding rod (16) is bolted to an output end of the first drive motor (17).

4. A sludge centrifugal concentrating device according to claim 2, characterized in that: The right side of the hollow tube (15) is connected to a delivery pipe (18), and the other end of the delivery pipe (18) is connected to the top of the dehydration box (10).

5. The sludge centrifugal concentrating device according to claim 1, characterized in that: The left side of the first threaded feeding rod (6) is bolted to a driving wheel (19), the left side of the housing (3) is bolted to a second driving motor (20), and the left side of the driving wheel (19) is bolted to the output end of the second driving motor (20).

6. The sludge centrifugal concentrating device according to claim 1, characterized in that: The left side of the rotating shaft (8) passes through the loading box (7) and is bolted to a driven wheel (21), and the surface of the driven wheel (21) and the surface of the driving wheel (19) are both meshed with chains (22).

7. The sludge centrifugal concentrating device according to claim 1, characterized in that: The right side of the water tank (2) is connected to a first water outlet pipe (23).

8. The sludge centrifugal concentrating device according to claim 1, characterized in that: The right side of the bottom of the dehydration box (10) is connected to a water filter box (24), the bottom of the water filter box (24) is connected to a second water outlet pipe (25), and the second water outlet pipe (25) is connected to the middle of the first water outlet pipe (23).

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