Sand removing device of anaerobic fermentation tank

Abstract

The utility model relates to an anaerobic fermentation tank desanding device which comprises a tank body and a plurality of desanding pipes, the plurality of desanding pipes are uniformly arranged on the inner bottom surface of the tank body along the circumferential direction of the tank body, one end of each desanding pipe is externally connected with a solution, the other end of each desanding pipe is closed, a water outlet is formed in the side wall of each desanding pipe, and a water inlet is formed in the side wall of each desanding pipe. The solution guided out from the plurality of water outlets forms a water flow which is tightly attached to the inner bottom surface of the tank body, so that solid particles on the inner bottom surface of the tank body move along with the water flow; when a solution to be treated exists in the tank body, the solution is conveyed into the desanding pipe, the solution entering the tank body through the desanding pipe forms a water flow which flows in a manner of being attached to the inner bottom surface of the tank body, and solid particles falling onto the inner bottom surface of the tank body are driven to move until the solid particles are led out along with the solution in the tank body. The problem that solid particles are deposited on the inner bottom surface of the tank body is solved from the source, and the tank body is not damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of garbage treatment, in particular to a sand removal device for an anaerobic fermentation tank. Background Art

[0002] An anaerobic fermentation tank is a key device in the process of garbage treatment in environmental protection projects. When the raw materials for fermentation enter the anaerobic fermentation tank, solid particles such as sand, shells, and glass will be brought in, and these sands will deposit on the bottom surface of the anaerobic fermentation tank. If not cleaned in time, the sand will be caked on the inner bottom surface of the anaerobic fermentation tank, resulting in a reduction in the internal space of the anaerobic fermentation tank.

[0003] For this reason, for example, a crystallization kettle for producing polyferric chloride proposed in the utility model patent with the application number CN202120432821.8 can be adopted, which includes a crystallization kettle body. The crystallization kettle includes a tank body and a cover body. An inlet is arranged at the upper part of one side of the tank body, a solid discharge port is arranged in the middle of the bottom of the tank body, a liquid discharge port is arranged at the lower part of one side of the tank body, a liquid sampling port is arranged in the middle and lower part of one side of the tank body. A stirring mechanism is arranged in the tank body. The top of the stirring mechanism rotates through the middle of the cover body and is connected with a driving motor for driving the stirring shaft to rotate. An annular scraper in contact with the inner wall of the tank body is arranged in the tank body, and a lifting mechanism for driving the annular scraper to move up and down is connected to the annular scraper.

[0004] However, although the scraper can effectively scrape out solid particles, with the movement of the scraper, friction will occur between the solid particles and the inner wall of the tank body, easily damaging the coating on the inner wall of the tank body and affecting the service life of the tank body. Content of the Utility Model

[0005] In view of this, it is necessary to provide a sand removal device for an anaerobic fermentation tank to solve the problem that although the scraper can effectively scrape out solid particles, with the movement of the scraper, friction will occur between the solid particles and the inner wall of the tank body, easily damaging the coating on the inner wall of the tank body and affecting the service life of the tank body.

[0006] The utility model provides a sand removal device for an anaerobic fermentation tank, which includes a tank body and multiple sand removal pipes. The multiple sand removal pipes are uniformly arranged along the circumferential direction of the tank body on the inner bottom surface of the tank body. One end of each sand removal pipe is externally connected to a solution and the other end is closed. Water outlets are arranged on the side walls of each sand removal pipe. The solutions led out from the multiple water outlets form a water flow closely attached to the inner bottom surface of the tank body, so that the solid particles on the inner bottom surface of the tank body move along with it.

[0007] Further, the inner bottom surface of the tank body is a conical surface that gradually expands vertically upward, and the multiple sand removal pipes are inclined.

[0008] Further, it further includes a plurality of spray heads installed on both sides of the sand removal pipe, and the plurality of spray heads are arranged in sequence along the length direction of the sand removal pipe.

[0009] Further, the sand removal pipe is arranged at an interval from the inner bottom surface of the tank body.

[0010] Further, the spray heads are arranged along the tangential direction of the tank body.

[0011] Further, it further includes a plurality of clamping seats fixedly arranged on the inner bottom wall of the tank body. A clamping groove is formed on each of the plurality of clamping seats, and the closed ends of the plurality of sand removal pipes are respectively clamped in the plurality of clamping grooves.

[0012] Further, it further includes a plurality of flow guiding plates. The plurality of flow guiding plates are respectively arranged at positions between adjacent two sand removal pipes. The flow guiding plates are fixedly connected to the inner bottom surface of the tank body. Arc-shaped flow guiding surfaces are arranged on both sides of the flow guiding plates, and the horizontal distance from the arc-shaped flow guiding surface to the adjacent sand removal pipe gradually decreases along the vertical direction.

[0013] Further, it further includes a water inlet assembly. The water inlet end of the water inlet assembly is externally connected to a solution, and the water outlet end of the water inlet assembly is communicated with a plurality of sand removal pipes.

[0014] Further, the water inlet assembly includes a water pump, a connecting pipe and an annular pipe. Both the water pump and the annular pipe are fixedly connected to the side wall of the tank body. The water pump, the connecting pipe and the annular pipe are communicated in sequence, and the annular pipe is communicated with a plurality of sand removal pipes.

[0015] Further, it further includes a water inlet pipe communicated with the water inlet end of the water pump, and the water inlet pipe is communicated with the tank body.

[0016] Compared with the prior art, when there is a solution to be processed in the tank body, by conveying the solution into the sand removal pipe, the solution entering the tank body through the sand removal pipe forms a water flow flowing along the inner bottom surface of the tank body, driving the solid particles falling on the inner bottom surface of the tank body to move until they are discharged together with the solution in the tank body. Compared with the method of scraping by a scraper, it solves the problem of solid particle deposition on the inner bottom surface of the tank body from the source and will not cause damage to the tank body. Description of the Drawings

[0017] Figure 1 It is a schematic diagram of the overall external structure of the sand removal device for an anaerobic fermentation tank provided by an embodiment of the present invention;

[0018] Figure 2 It is a schematic diagram of the overall internal structure of the sand removal device for an anaerobic fermentation tank provided by an embodiment of the present invention;

[0019] Figure 3The anaerobic fermentation tank sand removal device provided by the utility model embodiment Figure 2 Sectional view of the middle AA plane;

[0020] Figure 4 A schematic diagram of the arrangement of multiple guide plates in an anaerobic fermentation tank sand removal device provided in an embodiment of the utility model;

[0021] Figure 5 The anaerobic fermentation tank desanding device provided in the embodiment of the utility model Figure 4 Sectional view along the middle BB plane. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0023] like Figure 1-2 As shown, the utility model provides an anaerobic fermentation tank desanding device, comprising a tank body 100 and a plurality of desanding pipes 200, wherein the plurality of desanding pipes 200 are evenly arranged on the inner bottom surface of the tank body 100 along the circumference of the tank body 100, one end of each desanding pipe 200 is externally connected to a solution and the other end is closed, and a water outlet is provided at the side wall of each desanding pipe 200, and the solutions discharged from the plurality of water outlets form a water flow close to the inner bottom surface of the tank body 100, so that the solid particles on the inner bottom surface of the tank body 100 move accordingly.

[0024] During implementation, when there is a solution to be treated in the tank body 100, the solution is transported to the sand removal pipe 200, and the solution entering the tank body 100 through the sand removal pipe 200 forms a water flow that flows along the inner bottom surface of the tank body 100, driving the solid particles that fall onto the inner bottom surface of the tank body 100 to move until they are discharged together with the solution in the tank body 100. Compared with the scraping method using a scraper, this method solves the problem of solid particles being deposited on the inner bottom surface of the tank body 100 from the source, and will not cause damage to the tank body 100.

[0025] It is understandable that when the solid particles flow along the inner bottom surface of the tank body 100, there will inevitably be contact between the solid particles and the inner bottom surface of the tank body 100, but the interaction force between the two is small and can be ignored. At the same time, the friction between the two can be further reduced by controlling the size of the water flow.

[0026] The inner bottom surface of the tank body 100 in this embodiment is a tapered surface that gradually expands vertically upward, and a plurality of sand removal pipes 200 are arranged obliquely.

[0027] In this embodiment, multiple sand removal pipes 200 are evenly arranged along the circumferential direction of the tank body 100 on the inner bottom surface of the tank body 100. One end of each sand removal pipe 200 is externally connected to a solution and the other end is closed. Water outlets are provided on the side walls of each sand removal pipe 200, and the solutions discharged from the multiple water outlets form a water flow closely attached to the inner bottom surface of the tank body 100, so that the solid particles on the inner bottom surface of the tank body 100 move along with it.

[0028] As Figure 3 shown, in one embodiment, it further includes multiple spray heads 210 installed on both sides of the sand removal pipe 200, and the multiple spray heads 210 are arranged in sequence along the length direction of the sand removal pipe 200.

[0029] To prevent solid particles from getting stuck in the gap between the sand removal pipe 200 and the tank body 100, the sand removal pipe 200 is spaced from the inner bottom surface of the tank body 100.

[0030] Among them, the spray heads 210 are arranged along the tangent direction of the tank body 100.

[0031] To fix the sand removal pipe 200, this embodiment further includes multiple card seats 220 fixedly arranged on the inner bottom wall of the tank body 100. Card slots are provided on the multiple card seats 220, and the closed ends of the multiple sand removal pipes 200 are respectively clamped in the multiple card slots.

[0032] As Figure 4-5 shown, to increase the travel distance of the solid particles under the push of the water flow, this embodiment further includes multiple guide plates 230. The multiple guide plates 230 are respectively arranged at the positions between adjacent two sand removal pipes 200. The guide plates 230 are fixedly connected to the inner bottom surface of the tank body 100. Arc-shaped guide surfaces 231 are provided on both sides of the guide plates 230, and the horizontal distance from the arc-shaped guide surfaces 231 to the adjacent sand removal pipes 200 gradually decreases along the vertical direction.

[0033] When the solid particles hit the guide plate 230, they will flow upward along the arc-shaped guide surface 231 and finally move to the water outlet of the tank body 100 under the action of gravity. Among them, the guide plates 230 extend along the direction parallel to the sand removal pipes 200.

[0034] This embodiment further includes a water inlet assembly 300. The water inlet end of the water inlet assembly 300 is externally connected to a solution, and the water outlet end of the water inlet assembly 300 is communicated with the multiple sand removal pipes 200.

[0035] In one embodiment, the water inlet assembly 300 includes a water pump 310, a connecting pipe 320 and an annular pipe 330. Both the water pump 310 and the annular pipe 330 are fixedly connected to the side wall of the tank body 100. The water pump 310, the connecting pipe 320 and the annular pipe 330 are communicated in sequence, and the annular pipe 330 is communicated with the multiple sand removal pipes 200.

[0036] This embodiment also includes a water inlet pipe 340 connected to the water inlet end of the water pump 310, and the water inlet pipe 340 is connected to the tank body 100. It can be understood that the upper solution of the tank body 100 is connected through the water inlet pipe 340, which not only eliminates the need for external solution, but also allows the solutions of the upper and lower layers of the tank body 100 to circulate and stir more evenly.

[0037] It should be noted that a filter should be provided at one end of the water inlet pipe 340 extending to the tank body 100 to prevent impurities from entering the pipeline and causing blockage.

[0038] Compared with the prior art: when there is a solution to be treated in the tank body 100, the solution is transported to the sand removal pipe 200, and the solution entering the tank body 100 through the sand removal pipe 200 forms a water flow that flows along the inner bottom surface of the tank body 100, driving the solid particles that fall onto the inner bottom surface of the tank body 100 to move until they are discharged together with the solution in the tank body 100. Compared with the scraping method using a scraper, the method solves the problem of solid particles being deposited on the inner bottom surface of the tank body 100 from the source, and will not cause damage to the tank body 100.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. An anaerobic fermentation tank sand removal device, characterized in that, Comprising: A tank body; Multiple sand removal pipes, which are uniformly arranged on the inner bottom surface of the tank body along the circumferential direction of the tank body. One end of each sand removal pipe is externally connected to a solution and the other end is closed. Water outlets are arranged on the side wall of each sand removal pipe. The solutions discharged from the multiple water outlets form a water flow closely attached to the inner bottom surface of the tank body, so that the solid particles on the inner bottom surface of the tank body move therewith.

2. The sand removal device for anaerobic fermentation tank according to claim 1, characterized in that, The inner bottom surface of the tank body is a conical surface that gradually expands vertically upward, and multiple sand removal pipes are inclined.

3. The sand removal device for an anaerobic fermentation tank according to claim 1, wherein It further includes multiple spray heads installed on both sides of the sand removal pipes, and the multiple spray heads are arranged in sequence along the length direction of the sand removal pipes.

4. The sand removal device for anaerobic fermentation tank according to claim 1, characterized in that, The sand removal pipes are arranged at intervals from the inner bottom surface of the tank body.

5. The sand removal device for anaerobic fermentation tank according to claim 3, characterized in that, The spray heads are arranged along the tangential direction of the tank body.

6. The sand removal device for anaerobic fermentation tank according to claim 1, characterized in that, It further includes multiple card seats fixedly arranged on the inner bottom wall of the tank body. Card slots are opened on each of the multiple card seats, and the closed ends of the multiple sand removal pipes are respectively clamped in the multiple card slots.

7. The sand removal device for an anaerobic fermentation tank according to claim 2, wherein, It further includes multiple flow guiding plates, which are respectively arranged at positions between adjacent two sand removal pipes. The flow guiding plates are fixedly connected to the inner bottom surface of the tank body. Arc-shaped flow guiding surfaces are arranged on both sides of the flow guiding plates, and the horizontal distance from the arc-shaped flow guiding surfaces to the adjacent sand removal pipes gradually decreases in the vertical direction.

8. The sand removal device for an anaerobic fermentation tank according to claim 1, characterized in that, It further includes a water inlet assembly. The water inlet end of the water inlet assembly is externally connected to a solution, and the water outlet end of the water inlet assembly is communicated with multiple sand removal pipes.

9. The sand removal device for an anaerobic fermentation tank according to claim 8, characterized in that, The water inlet assembly includes a water pump, a connecting pipe and an annular pipe. The water pump and the annular pipe are both fixedly connected to the side wall of the tank body. The water pump, the connecting pipe and the annular pipe are sequentially communicated, and the annular pipe is communicated with multiple sand removal pipes.

10. The anaerobic fermentation tank sand removal device according to claim 9, characterized in that, It further includes a water inlet pipe communicated with the water inlet end of the water pump, and the water inlet pipe is communicated with the tank body.

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