Mud-water separation device of biological phosphorus removal system

Abstract

The utility model provides a mud-water separation device of a biological phosphorus removal system, which belongs to the technical field of mud-water separation equipment and comprises a collecting hopper communicated with the bottom of a sludge tank, a motor fixedly arranged at the bottom of the collecting hopper, a rotating shaft arranged in the sludge tank, and a plurality of scraper components arranged on the surface of the rotating shaft, each scraper assembly comprises a connecting block welded to the surface of the rotating shaft, a connecting rod arranged on the side, away from the rotating shaft, of the connecting block and a scraper arranged on the side, away from the rotating shaft, of the connecting rod, one side of the collecting hopper communicates with a sludge discharging pipe, and a sludge discharging pump is arranged on the sludge discharging pipe. According to the utility model, the motor drives the rotating shaft to rotate so as to drive the scraper assembly to rotate, the inner wall of the sludge tank is cleaned through the staggered sludge scrapers, and the synchronous linkage block drives the lower scraper to rotate, so that the lower scraper drives the convex block to clean the inner wall of the collecting hopper, and therefore, the tank wall of the sludge tank can be conveniently cleaned; and the precipitation quality is improved, so that the mud-water separation efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of mud-water separation equipment, specifically to a mud-water separation device for a biological phosphorus removal system. Background Technology

[0002] Biological phosphorus removal systems are commonly used in wastewater treatment to remove phosphorus through the action of microorganisms. A sludge-water separation device is a key component of these systems, used to separate treated water and sludge, for example, through an overflow sedimentation device.

[0003] In related technologies, biological phosphorus removal using overflow sedimentation processes mostly involves the combination of an overflow tank and a sludge tank for sludge-water separation. The supernatant flows through the overflow tank, while the sludge settles in the sludge tank. When the sludge settles to a certain amount, it is discharged from the sludge tank by a sludge pump.

[0004] However, sludge-water separation requires sufficient settling time. After sludge settles in the sludge tank for a long time, sludge will adhere to the tank wall, requiring regular cleaning of the inner wall of the sludge tank. If it is not cleaned in time, it will affect the subsequent settling quality and reduce the sludge-water separation effect. Although existing sludge tank cleaning devices can clean the inner wall of the sludge tank, their cleaning range is limited and the cleaning quality is poor, or they require manual assistance, making the cleaning of the inner wall of the sludge tank quite troublesome. To solve the above problems, a sludge-water separation device for a biological phosphorus removal system is proposed. Utility Model Content

[0005] In view of this, the present invention provides a sludge-water separation device for a biological phosphorus removal system. The present invention uses a motor to drive a rotating shaft to rotate, which in turn drives a scraper assembly to rotate. The staggered scraper blades then rotate and clean the inner wall of the sludge tank. Simultaneously, a linkage block drives a linkage rod to rotate, causing the lower scraper to rotate synchronously. This causes the lower scraper to drive the protrusions on it to clean the inner wall of the collection hopper, thereby facilitating the cleaning of the sludge tank wall, improving sedimentation quality, and increasing the efficiency of sludge-water separation.

[0006] To solve the above-mentioned technical problems, this utility model provides a sludge-water separation device for a biological phosphorus removal system, including a sludge tank connected to the bottom of an overflow tank, a collection hopper connected to the bottom of the sludge tank, a motor fixedly installed at the bottom of the collection hopper, a rotating shaft installed inside the sludge tank, the rotating shaft connected to the motor, a plurality of scraper assemblies installed on the surface of the rotating shaft, the scraper assemblies being staggered along the axial direction of the rotating shaft, each scraper assembly including a connecting block welded to the surface of the rotating shaft, a connecting rod installed on the side of each connecting block away from the rotating shaft, a scraper blade installed on the side of each connecting rod away from the rotating shaft, a sludge discharge pipe connected to one side of the collection hopper, and a sludge discharge pump installed on the sludge discharge pipe.

[0007] Each connecting block has a groove embedded on the side away from the rotating shaft. The groove is used to receive the protrusion. Each connecting rod has a protrusion at the end near the rotating shaft. The protrusion is used to connect the groove with the connecting rod, thereby connecting and fixing the connecting block fixed on the rotating shaft to the connecting rod. The protrusion and the groove are sealed and adapted to each other.

[0008] Each groove has a pair of threaded holes symmetrically arranged on both sides for installing positioning bolts. Each protrusion also has a pair of threaded holes symmetrically arranged on both sides, and each threaded hole contains a positioning bolt. The positioning bolts are used to connect and fix the protrusion to the groove, thereby enabling the connecting block and the connecting rod to be detachably connected and fixed.

[0009] Each connecting rod has an internal threaded cylinder at the end furthest from the rotating shaft. The internal threaded cylinder is used to receive the external threaded pipe. Each internal threaded cylinder also has an external threaded pipe at the end furthest from the rotating shaft. The external threaded pipe is used to connect the scraper blade to the internal threaded cylinder, thereby enabling the scraper blade and connecting rod to be detachably connected and fixed. The internal threaded cylinder and the external threaded pipe are threadedly matched, and the external threaded pipe is connected to the scraper blade.

[0010] The sludge tank is a hollow cylinder, and the collection hopper is an inverted hollow frustum. A filter plate is fixedly installed at the bottom of the overflow tank to prevent sludge from entering the overflow tank. Multiple connecting pipes are installed at the bottom of the filter plate to connect the overflow tank and the sludge tank for sludge separation. Each connecting pipe passes through the bottom of the overflow tank and connects to the sludge tank.

[0011] A linkage block is provided on one side of the bottom of the rotating shaft. The linkage block is used to connect the linkage rod to the rotating shaft. A linkage rod is provided at the end of the linkage block away from the rotating shaft. The linkage rod is used to connect the linkage block to the lower scraper. Thus, when the rotating shaft rotates, the lower plate rotates synchronously. A lower scraper is provided at the end of the linkage rod away from the rotating shaft. The lower scraper is used to scrape the sludge on the inner wall of the collection hopper. The lower scraper is inclined along the inner ring of the collection hopper. Several protrusions are provided on the surface of the lower scraper. The protrusions are trapezoidal in shape and are used to improve the quality of sludge scraping on the inner wall of the collection hopper.

[0012] A rotating base is provided at the top of the rotating shaft. The rotating base is used to fix the rotating shaft and improve its stability. The rotating base is inverted and mechanically sealed to the rotating shaft. A support plate is provided at the top of the rotating base. The support plate is used to install the rotating base, thereby connecting and fixing the rotating base to the inner wall of the sludge tank. This supports the rotating shaft and reduces stress damage during rotation, thus improving the service life of the equipment. The support plate is welded to the inner wall of the sludge tank. The middle of the support plate is rectangular and the two ends are arc-shaped.

[0013] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0014] 1. The motor drives the rotating shaft to rotate, which in turn drives the scraper assembly to rotate. The scraper on the scraper assembly cleans the inner wall of the sludge tank. The synchronous linkage block drives the linkage rod to rotate, which in turn causes the lower scraper to rotate synchronously. The lower scraper then drives the protrusions on it to clean the inner wall of the collection hopper. This makes it easy to clean the walls of the sludge tank, thereby improving the sedimentation quality and the efficiency of sludge-water separation.

[0015] 2. The connecting rod is detachably connected to the scraper blade connected to the external threaded pipe by threading the external threaded pipe through the threaded connection between the external threaded pipe and the internal threaded cylinder.

[0016] 3. The linkage block is used to connect the linkage rod to the rotating shaft, and the linkage rod is used to connect the linkage block to the lower scraper. Thus, when the rotating shaft rotates, the lower scraper rotates synchronously. The lower scraper is used to scrape the sludge on the inner wall of the collection hopper, and the protrusion is used to improve the quality of sludge scraping by the lower scraper on the inner wall of the collection hopper. Attached Figure Description

[0017] Figure 1 This is a front view structural diagram of the present utility model;

[0018] Figure 2 This is a side sectional view of the present invention;

[0019] Figure 3 This is a front sectional view of the present invention;

[0020] Figure 4 This utility model Figure 3 A magnified view of part A;

[0021] Figure 5 This is a side sectional view of the present invention;

[0022] Figure 6 This utility model Figure 5 A magnified view of part B.

[0023] Explanation of reference numerals in the attached drawings: 100, overflow tank; 101, sludge tank; 102, collection hopper; 103, motor; 104, rotating shaft; 200, scraper assembly; 201, connecting block; 202, connecting rod; 203, scraper blade; 204, groove; 205, protrusion; 206, threaded hole; 207, positioning bolt; 208, internal threaded cylinder; 209, external threaded pipe; 300, linkage block; 301, linkage rod; 302, lower scraper blade; 303, protrusion; 400, rotating base; 401, support plate; 500, sludge discharge pipe; 501, sludge discharge pump; 502, filter plate; 503, connecting pipe. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-6 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0025] like Figure 1-6 As shown: This embodiment provides a sludge-water separation device for a biological phosphorus removal system, including a sludge tank 101 connected to the bottom of an overflow tank 100. The sludge tank 101 is used for sludge sedimentation. A collection hopper 102 is connected to the bottom of the sludge tank 101, which facilitates the sludge pump 501 on the sludge discharge pipe 500 to extract the sedimented sludge from the sludge tank 101. A motor 103 is fixedly installed at the bottom of the collection hopper 102, which drives a rotating shaft 104 to rotate. The rotating shaft 104 is installed inside the sludge tank 101. The motor 103 and the rotating shaft 104 are sealed together by a coupling. The rotating shaft 104 and the motor 103 are mechanically sealed together. Multiple scraper assemblies 200 are provided on the surface of the rotating shaft 104. The scraper assemblies 200 are used to scrape off the dirt attached to the inner wall of the sludge tank 101. The scraper assemblies 200 are staggered along the axial direction of the rotating shaft 104. Each scraper assembly 200 is covered with... The sludge tank 101 includes a connecting block 201 welded to the surface of the rotating shaft 104. The connecting block 201 is used to connect the connecting rod 202 to the rotating shaft 104, so that the connecting rod 202 rotates synchronously when the rotating shaft 104 rotates. Each connecting block 201 has a connecting rod 202 on the side away from the rotating shaft 104. The connecting rod 202 is used to connect the connecting block 201 to the scraper 203, thereby driving the scraper 203 to rotate and scrape the dirt on the inner wall of the sludge tank 101. Each connecting rod 202 has a scraper 203 on the side away from the rotating shaft 104. The scraper 203 is used to scrape the dirt on the inner wall of the sludge tank 101. One side of the collection hopper 102 is connected to a sludge discharge pipe 500. The sludge discharge pipe 500 is used to circulate sludge. A sludge discharge pump 501 is installed on the sludge discharge pipe 500. The sludge discharge pump 501 is used to discharge the sludge in the sludge discharge pipe 500 to the outside of the collection hopper 102 and the sludge tank 101.

[0026] In use, the motor 103 drives the rotating shaft 104 to rotate, which in turn drives the scraper assembly 200 to rotate. The scraper blades 203 on the scraper assembly 200 clean the inner wall of the sludge tank 101. Simultaneously, the linkage block 300 drives the linkage rod 301 to rotate, which in turn causes the lower scraper 302 to rotate synchronously. The lower scraper 302 then drives the protrusions 205 on it to clean the inner wall of the collection hopper 102. This facilitates the cleaning of the sludge tank 101, thereby improving the sedimentation quality and the efficiency of sludge-water separation.

[0027] This embodiment provides a mud-water separation device for a biological phosphorus removal system.

[0028] like Figure 2 , 3 As shown in Figures 4 and 5: Each connecting block 201 has a groove 204 embedded on the side away from the rotating shaft 104. The groove 204 is used to receive the protrusion 205. Each connecting rod 202 has a protrusion 205 at the end near the rotating shaft 104. The protrusion 205 is used to connect the groove 204 and the connecting rod 202, thereby connecting and fixing the connecting block 201 fixed on the rotating shaft 104 to the connecting rod 202. The protrusion 205 and the groove 204 are sealed and adapted. Each groove 204 has a pair of threaded holes 206 symmetrically arranged on both sides. The threaded holes 206 are used to install positioning bolts 207. Each protrusion 205 has a pair of threaded holes 206 symmetrically arranged on both sides. Each threaded hole 206 has a positioning bolt 207. The positioning bolt 207 is used to connect and fix the protrusion 205 to the groove 204, thereby detachably connecting and fixing the connecting block 201 and the connecting rod 202.

[0029] The effect is as follows: by inserting the protrusion 205 on the connecting rod 202 into the groove 204 in the connecting block 201, the threaded hole 206 on it is aligned, and then the connecting block 201 is connected and fixed with the connecting rod 202 by the positioning bolt 207, thereby supporting the components on the connecting rod 202. When the connecting block 201 rotates, the scraper 203 rotates synchronously.

[0030] like Figure 3 , 4 As shown in Figures 5 and 6: Each connecting rod 202 has an internal threaded cylinder 208 at the end away from the rotating shaft 104. The internal threaded cylinder 208 is used to receive the external threaded tube 209. Each internal threaded cylinder 208 has an external threaded tube 209 at the end away from the rotating shaft 104. The external threaded tube 209 is used to connect the scraper blade 203 to the internal threaded cylinder 208, thereby making the scraper blade 203 and the connecting rod 202 detachably connected and fixed. The internal threaded cylinder 208 and the external threaded tube 209 are threadedly matched, and the external threaded tube 209 is connected to the scraper blade 203.

[0031] Its effect is that the external threaded pipe 209 is threadedly connected to the internal threaded cylinder 208, thereby enabling the connecting rod 202 to be detachably connected to the scraper 203 connected to the external threaded pipe 209.

[0032] like Figure 1 , 2As shown in Figures 3 and 5: the sludge tank 101 is a hollow cylinder, the collection hopper 102 is an inverted hollow frustum, and a filter plate 502 is fixedly installed at the bottom of the overflow tank 100. The filter plate 502 is detachably connected to the bottom of the overflow tank 100. The filter plate 502 is used to prevent sludge in the sludge tank 101 from entering the overflow tank 100. Multiple connecting pipes 503 are provided at the bottom of the filter plate 502. One end of the connecting pipe 503 is welded to the overflow tank 100, and the lower end of the connecting pipe 503 is welded to the sludge tank 101. The connecting pipes 503 are used to connect the overflow tank 100 and the sludge tank 101, thereby separating the sludge and sand. Each connecting pipe 503 passes through the bottom of the overflow tank 100 and connects to the sludge tank 101.

[0033] Its effects are as follows: the filter plate 502 is used to prevent sludge in the sludge tank 101 from entering the overflow tank 100, and the connecting pipe 503 is used to connect the overflow tank 100 and the sludge tank 101, thereby separating the mud and sand.

[0034] like Figure 2 , 3 As shown in Figure 5: A linkage block 300 is provided on one side of the bottom of the rotating shaft 104. One side of the linkage block 300 is arc-shaped and welded to the rotating shaft 104. The linkage block 300 is used to connect the linkage rod 301 to the rotating shaft 104. A linkage rod 301 is provided at the end of the linkage block 300 away from the rotating shaft 104. The linkage rod 301 is welded to the linkage block 300 and is used to connect the linkage block 300 to the lower scraper 302. Thus, when the rotating shaft 104 rotates, the lower hanging plate rotates synchronously. A lower scraper 302 is provided at the end of the linkage rod 301 away from the rotation shaft 104. The lower scraper 302 is welded to the linkage rod 301. The lower scraper 302 is used to scrape the sludge on the inner wall of the collection hopper 102. The lower scraper 302 is inclined along the inner ring of the collection hopper 102. Several protrusions 303 are provided on the surface of the lower scraper 302. The protrusions 303 are welded to the lower scraper 302. The protrusions 303 are used to improve the quality of sludge scraping on the inner wall of the collection hopper 102 by the lower scraper 302. The protrusions 303 are trapezoidal.

[0035] Its effect is as follows: the linkage block 300 is used to connect the linkage rod 301 to the rotating shaft 104, the linkage rod 301 is used to connect the linkage block 300 to the lower scraper 302, so that when the rotating shaft 104 rotates, the lower hanging plate rotates synchronously, the lower scraper 302 is used to scrape the sludge on the inner wall of the collection hopper 102, and the protrusion 303 is used to improve the quality of sludge scraping on the inner wall of the collection hopper 102 by the lower scraper 302.

[0036] like Figure 2 , 3As shown in Figure 5: A rotating base 400 is provided on the top of the rotating shaft 104. The rotating base 400 is mechanically sealed to the rotating shaft 104. The rotating base 400 is used to fix the rotating shaft 104 and improve its stability. The rotating base 400 is inverted and mechanically sealed to the rotating shaft 104. A support plate 401 is provided on the top of the rotating base 400. The support plate 401 is fixed to the rotating base 400 by bolts or welding. The support plate 401 is used to install the rotating base 400, thereby connecting and fixing the rotating base 400 to the inner wall of the sludge tank 101, thus supporting the rotating shaft 104 and reducing the stress damage it suffers during rotation, thereby improving the service life of the equipment. The support plate 401 is welded to the inner wall of the sludge tank 101. The middle part of the support plate 401 is rectangular and the two ends are arc-shaped.

[0037] The effect is as follows: the rotating base 400 is used to fix the rotating shaft 104 and improve the stability of the rotating shaft 104; the support plate 401 is used to install the rotating base 400, thereby connecting and fixing the rotating base 400 to the inner wall of the sludge tank 101, thereby supporting the rotating shaft 104 and reducing the stress damage it suffers during rotation, thus improving the service life of the equipment.

[0038] Working principle: The motor 103 drives the rotating shaft 104 to rotate, which in turn drives the scraper assembly 200 to rotate, which in turn drives the connecting block 201 to rotate the connecting plate, which in turn drives the connecting rod 202 to rotate the scraper 203. The scraper 203 cleans the inner wall of the sludge tank 101. Simultaneously, the linkage block 300 drives the linkage rod 301 to rotate, which in turn drives the lower scraper 302 to rotate synchronously. The lower scraper 302 drives the protrusion 205 on it to clean the inner wall of the collection hopper 102. This facilitates the cleaning of the tank wall of the sludge tank 101, thereby improving the sedimentation quality and the efficiency of sludge-water separation.

[0039] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A sludge-water separation device of a biological phosphorus removal system, comprising a sludge pool (101) which is in communication with the bottom of an overflow pool (100), characterized in that: The bottom of the sludge pool (101) is communicated with a collecting hopper (102), the bottom of the collecting hopper (102) is fixedly provided with a motor (103), the sludge pool (101) is provided with a rotating shaft (104), the rotating shaft (104) is connected with the motor (103), the surface of the rotating shaft (104) is provided with a plurality of scraper assemblies (200), the scraper assemblies (200) are staggered along the axial direction of the rotating shaft (104), each scraper assembly (200) comprises a connecting block (201) welded to the surface of the rotating shaft (104), each connecting block (201) is provided with a connecting rod (202) on the side away from the rotating shaft (104), and each connecting rod (202) is provided with a mud scraping plate (203) on the side away from the rotating shaft (104), one side of the collecting hopper (102) is communicated with a sludge discharge pipe (500), and the sludge discharge pipe (500) is provided with a sludge discharge pump (501).

2. A sludge-water separation device for a biological dephosphorization system as claimed in claim 1, characterized in that: The side away from the rotating shaft (104) of each connecting block (201) is embedded with a groove (204), one end of each connecting rod (202) close to the rotating shaft (104) is provided with a protruding block (205), and the protruding block (205) is sealingly matched with the groove (204).

3. A sludge-water separation device for a biological dephosphorization system as claimed in claim 2, characterized in that: A pair of screw holes (206) are symmetrically arranged on the two sides of each groove (204), a pair of screw holes (206) are symmetrically arranged on the two sides of each protruding block (205), and a positioning bolt (207) is arranged in each screw hole (206).

4. A sludge-water separation device for a biological dephosphorization system according to claim 3, characterized in that: One end of each connecting rod (202) away from the rotating shaft (104) is provided with an internal threaded cylinder (208), one end of each internal threaded cylinder (208) away from the rotating shaft (104) is provided with an external threaded pipe (209), the internal threaded cylinder (208) is threadedly matched with the external threaded pipe (209), and the external threaded pipe (209) is connected with the mud scraping plate (203).

5. A sludge-water separation device for a biological dephosphorization system as claimed in claim 4, characterized in that: The sludge pool (101) is a hollow cylinder, the collecting hopper (102) is an inverted hollow circular table, the bottom of the overflow pool (100) is fixedly provided with a filter plate (502), the bottom of the filter plate (502) is provided with a plurality of communication pipes (503), and each communication pipe (503) penetrates the bottom of the overflow pool (100) and communicates with the sludge pool (101).

6. A sludge-water separation device for a biological dephosphorization system as claimed in claim 5, characterized in that: One side of the bottom of the rotating shaft (104) is provided with a linkage block (300), one end of the linkage block (300) away from the rotating shaft (104) is provided with a linkage rod (301), one end of the linkage rod (301) away from the rotating shaft (104) is provided with a lower scraper (302), and the lower scraper (302) is inclinedly arranged along the inner ring of the collecting hopper (102). The surface of the lower scraper (302) is provided with a plurality of protrusions (303), and the protrusions (303) are trapezoidal.

7. A sludge-water separation device for a biological dephosphorization system as claimed in claim 6, characterized in that: The rotating shaft (104) is provided with a rotating base (400) at the top, the rotating base (400) is provided with a support plate (401) at the top, the support plate (401) is welded to the inner wall of the sludge pool (101), and the support plate (401) is arc-shaped at two ends.

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