Grit chamber

Abstract

The utility model relates to the technical field of water treatment equipment, in particular to a grit chamber which comprises a chamber body, a sand pump and a jet flow unit, a water outlet of the first water spraying piece is located at the higher end of the inclined face and faces the sand collecting part, and a water outlet of the second water spraying piece is located at the lower end of the inclined face and faces the sand collecting part. Water flow sprayed by the first water spraying piece can drive mud and sand settled on the inclined face to move towards the sand collecting part at the lower end of the inclined face along the inclined face, water flow sprayed by the second water spraying piece can impact the mud and sand settled on the sand collecting part, the mud and sand settled on the sand collecting part are loosened, the mud and sand are fully mixed with water, and the water quality is improved. The sand pump of which the sand inlet end extends into the sand collecting part is convenient to extract mud and sand deposited on the sand collecting part; and deposited mud and sand are concentrated and loosened through water flow sprayed by the first water spraying piece and the second water spraying piece, so that the sand taking efficiency and effect of the grit chamber are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment equipment, in particular to a sand settling tank. Background Art

[0002] In the sewage treatment process, the function of the grit chamber is to utilize the principle of gravity separation to allow heavier sand particles to settle to the bottom of the chamber. The grit chamber includes a horizontal flow grit chamber, which uses horizontally flowing water to settle sand particles. It has a relatively simple structure and stable operation. For example, CN202220316459.2 discloses a sand extraction type grit chamber. During use, the existing grit chamber often uses a sand pump to extract the mud and sand that have settled to the bottom of the chamber. However, the mud and sand will cover the bottom of the chamber after settling, and the action range of each sand pump is limited. The sand pump may only cover a specific area of ​​the bottom of the chamber, resulting in the inability to effectively extract mud and sand in other areas. When the settled mud and sand accumulate together, it will also affect the extraction of the sand pump. The overall sand extraction efficiency of the grit chamber is low and the effect is not good. If the action range is expanded by setting multiple sand pumps, not only will the cost be too high, but it will also affect the normal operation of the grit chamber.

[0003] Based on this, the applicant considered designing a grit chamber that can improve the efficiency and effect of sand extraction. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a sand settling tank that can improve the efficiency and effect of sand removal.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A sand settling tank, comprising a tank body, a sand pump and a jet unit;

[0007] The bottom side of the pool body is provided with an inclined surface, and the lower end of the inclined surface is a sand collecting part;

[0008] The sand inlet end of the sand pump extends into the sand collecting part;

[0009] The jet unit includes a first water spray member, a second water spray member and a water supply member for supplying water to the first water spray member and the second water spray member; the water outlet of the first water spray member is located at the higher end of the slope and faces the sand collecting part, and the water outlet of the second water spray member is located at the lower end of the slope and faces the sand collecting part.

[0010] The working principle and advantages of a sand settling tank in this technical solution are:

[0011] The inclined surface on the bottom side of the pool body can guide the settled mud and sand to move along the inclined surface to the sand collecting part at the lower end of the inclined surface, which is conducive to the mud and sand being deposited in the sand collecting part; the water outlet of the first water spray component of the jet unit is located at the higher end of the inclined surface and faces the sand collecting part, while the water outlet of the second water spray component is located at the lower end of the inclined surface and faces the sand collecting part. When the water supply component supplies water to the first water spray component and the second water spray component, the water outlets of the first water spray component and the second water spray component spray water. The water flow sprayed by the first water spray component can drive the mud and sand settled on the inclined surface to move along the inclined surface to the sand collecting part at the lower end of the inclined surface, and the water flow sprayed by the second water spray component can impact and deposited mud and sand in the sand collecting part, loosen the mud and sand deposited in the sand collecting part, and allow the mud and sand to be fully mixed with water, so as to facilitate the sand pump with the sand inlet end extending into the sand collecting part to extract the mud and sand deposited in the sand collecting part; the deposited mud and sand are concentrated and loosened by the water flow sprayed by the first water spray component and the second water spray component, thereby improving the efficiency and effect of sand extraction in the sand settling tank.

[0012] Furthermore, the first water spraying member comprises a hollow square box obliquely arranged at the higher end of the inclined surface, the water outlet of the first water spraying member is an opening opened at the lower end of the square box, and the water supply member supplies water to the inside of the square box.

[0013] Furthermore, the second water spray component includes a plurality of water spray pipes that are inclined and spaced apart, wherein the higher end of the water spray pipe is a water inlet end, and the lower end is a water outlet end, the water inlet end of the water spray pipe extends from the opening into the square box, and the water outlet of the second water spray component is the water outlet end of the water spray pipe.

[0014] Furthermore, a diverter plate is fixedly connected inside the square box, a water collecting portion is formed between the diverter plate and the bottom side of the square box, and the water supply component supplies water to the water collecting portion; the diverter plate is provided with a plurality of first diverter holes connected to the opening and a plurality of second diverter holes connected to the water inlet end of the water spray pipe.

[0015] Furthermore, a plurality of connecting tubes are fixedly connected to the diverter plate, each connecting tube is provided with at least one second diverter hole, and the inner side wall of the water inlet end of the water spray pipe is threadedly connected to the outer side wall of the connecting tube.

[0016] Furthermore, the water supply component is a water pump, and the water outlet end of the water pump is connected to the water collecting part.

[0017] Furthermore, a connecting pipe is fixedly connected to the water outlet of the water pump, and the connecting pipe is fixedly connected to the top side of the square box.

[0018] Furthermore, the water inlet end of the water pump is communicated with the top of the pool body.

[0019] Furthermore, a groove is provided at the lower end of the inclined surface.

[0020] Furthermore, the water outlet of the second water spraying member extends into the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The schematic diagram of the overall structure of the grit chamber of the utility model embodiment;

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the jet unit of the embodiment of the utility model;

[0023] Figure 3 This is a schematic cross-sectional structure diagram of a square box according to an embodiment of the utility model;

[0024] Figure 4 for Figure 3 The enlarged schematic diagram of point A in the middle;

[0025] Figure 5 This is a schematic diagram of the three-dimensional structure of the diverter plate in the embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the overall structure of a grit chamber according to another embodiment of the present invention;

[0027] In the above drawings: 100, pool body; 110, inclined surface; 111, sand collecting part; 112, groove;

[0028] 210, water pump; 211, water inlet end; 212, water outlet end; 220, connecting pipe; 230, first water spraying member; 231, square box; 2311, opening; 232, diverter plate; 2321, first diverter hole; 2322, second diverter hole; 2323, connecting tube; 233, water collecting part; 240, second water spraying member; 241, water spraying pipe;

[0029] 300. Sand pump. DETAILED DESCRIPTION

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] Refer to Figure 1~Figure 5 , this embodiment provides a sand settling tank, which includes a tank body 100, a sand pump 300 and a jet unit;

[0032] An inclined surface 110 is provided on the inner bottom side of the pool body 100, and the lower end of the inclined surface 110 is a sand collecting portion 111;

[0033] The sand inlet end of the sand pump 300 extends into the sand collecting portion 111;

[0034] The jet unit includes a first water spray component 230, a second water spray component 240 and a water supply component for supplying water to the first water spray component 230 and the second water spray component 240; the water outlet of the first water spray component 230 is located at the higher end of the inclined surface 110 and faces the sand collecting portion 111, and the water outlet of the second water spray component 240 is located at the lower end of the inclined surface 110 and faces the sand collecting portion 111.

[0035] In this embodiment, the inclined surface 110 on the inner bottom side of the pool body 100 can guide the settled mud and sand to move along the inclined surface 110 to the sand collecting part 111 at the lower end of the inclined surface 110, which is conducive to the mud and sand being deposited in the sand collecting part 111; the water outlet of the first water spraying member 230 of the jet unit is located at the higher end of the inclined surface 110 and faces the sand collecting part 111, while the water outlet of the second water spraying member 240 is located at the lower end of the inclined surface 110 and faces the sand collecting part 111. When the water supply member supplies water to the first water spraying member 230 and the second water spraying member 240, the water outlets of the first water spraying member 230 and the second water spraying member 240 spray water, and the first water spraying member 230 and the second water spraying member 240 spray water. The water flow sprayed by the water spraying member 230 can drive the mud and sand settled on the inclined surface 110 to move along the inclined surface 110 to the sand collecting part 111 at the lower end of the inclined surface 110. The water flow sprayed by the second water spraying member 240 can impact the mud and sand deposited in the sand collecting part 111, loosen the mud and sand deposited in the sand collecting part 111, and allow the mud and sand to be fully mixed with water, so as to facilitate the sand pump 300 with the sand inlet end extending into the sand collecting part 111 to extract the mud and sand deposited in the sand collecting part 111; the water flow sprayed by the first water spraying member 230 and the second water spraying member 240 can concentrate and loosen the deposited mud and sand, thereby improving the efficiency and effect of sand extraction in the sand settling tank.

[0036] Preferably, if Figure 1 and Figure 2As shown, the first water spraying member 230 includes a hollow square box 231 obliquely arranged at the higher end of the inclined surface 110, the water outlet of the first water spraying member 230 is an opening 2311 opened at the lower end of the square box 231, and the water supply member supplies water to the inside of the square box 231; the first water spraying member 230 adopts the form of a hollow square box 231, which is obliquely arranged at the higher end of the inclined surface 110, and the opening 2311 opened at the lower end of the square box 231 serves as the water outlet of the first water spraying member 230. When the water supply member supplies water to the inside of the square box 231, the water flows from a higher position to a lower position, and the driving force of the water flow is increased by gravity. The water flow sprayed from the opening 2311 directly acts on the mud and sand on the inclined surface 110, pushing the mud and sand to move toward the sand collecting portion 111, and the water flow sprayed from the opening 2311 of the square box 231 can cover a wider area, and can effectively push the mud and sand on the inclined surface 110 to concentrate on the sand collecting portion 111.

[0037] Preferably, if Figure 1 and Figure 2 As shown, the second water spraying member 240 includes a plurality of water spraying pipes 241 which are arranged at an angle and at intervals, wherein the higher end of the water spraying pipe 241 is the water inlet end 211, and the lower end is the water outlet end 212. The water inlet end 211 of the water spraying pipe 241 extends into the square box 231 from the opening 2311, and the water outlet of the second water spraying member 240 is the water outlet end 212 of the water spraying pipe 241; the second water spraying member 240 includes a plurality of water spraying pipes 241 which are arranged at an angle and at intervals, and the higher water inlet end 211 of the water spraying pipe 241 extends into the square box 231, so that the first water spraying member 230 and the second water spraying member 240 are combined. When the water supply component supplies water to the square box 231, water can be sprayed out from the opening 2311 of the square box 231 and the water outlet end 212 of the water spray pipe 241, thereby improving the water supply efficiency. Multiple water spray pipes 241 can increase the coverage of the water flow, ensuring that the water flow can evenly act on the deposited mud and sand in the sand collecting part 111, and multiple water spray pipes 241 are arranged at intervals so that the opening 2311 of the square box 231 can spray water normally. The higher end of each water spray pipe 241 is the water inlet end 211, and the lower end is the water outlet end 212, which is conducive to the natural flow and spraying of water.

[0038] Preferably, if Figure 3~Figure 5As shown, a diverter plate 232 is fixedly connected to the square box 231, and a water collecting portion 233 is formed between the diverter plate 232 and the inner bottom side of the square box 231, and the water supply part supplies water to the water collecting portion 233; the diverter plate 232 is provided with a plurality of first diverter holes 2321 connected to the opening 2311 and a plurality of second diverter holes 2322 connected to the water inlet end 211 of the water spray pipe 241; the water collecting portion 233 is formed between the diverter plate 232 and the inner bottom side of the square box 231, which is the water supply part A centralized water supply area is provided, and the diverter plate 232 is provided with a plurality of first diverter holes 2321 and second diverter holes 2322 which are respectively connected to the opening 2311 of the square box 231 and the water inlet end 211 of the water spray pipe 241, thereby helping to evenly distribute the water flow to the square box 231 and the water spray pipe 241, so that the water flow can be evenly sprayed out from the opening 2311 of the square box 231 and the water outlet end 212 of the water spray pipe 241, thereby maximizing the use efficiency of the water flow and reducing water waste.

[0039] Preferably, if Figure 3~Figure 5 As shown, a plurality of connecting tubes 2323 are fixedly connected to the diverter plate 232, and each connecting tube 2323 is provided with at least one second diverter hole 2322. The inner wall of the water inlet end 211 of the water spray pipe 241 is threadedly connected to the outer wall of the connecting tube 2323; the inner wall of the water inlet end 211 of the water spray pipe 241 is threadedly connected to the outer wall of the connecting tube 2323. This connection method is both firm and convenient for disassembly, which is convenient for the installation and maintenance of the water spray pipe 241.

[0040] Preferably, if Figure 1 , Figure 2 as well as Figure 5 As shown, the water supply component is a water pump 210, and the water outlet 212 of the water pump 210 is connected to the water collecting part 233; as a water supply component, the water pump 210 can provide stable and sufficient pressure to ensure that the water flow can efficiently reach various parts of the grit chamber, and the water pump 210 can adjust the pressure and water supply time as needed to adapt to the use requirements of different grit chambers; specifically, the water pump 210 can be directly fixedly connected to the top side of the grit chamber.

[0041] Preferably, if Figure 1 , Figure 2 as well as Figure 5 As shown, the water outlet end 212 of the water pump 210 is fixedly connected with a connecting pipe 220, and the connecting pipe 220 is fixedly connected to the top side of the square box 231; the water outlet end 212 of the water pump 210 is directly connected to the top side of the square box 231 through the connecting pipe 220, which simplifies the water supply path, and the fixed connection ensures the stability between the connecting pipe 220 and the square box 231, reducing the risk of loose connection or leakage due to water flow impact or vibration.

[0042] Preferably, if Figure 5As shown, the water inlet end 211 of the water pump 210 is connected to the top of the pool body 100; when the water inlet end 211 of the water pump 210 is connected to the top of the pool body 100 through an inlet pipe or other connecting equipment, the water pump 210 can draw water from a fixed part of the pool body 100 to supply water to the first water spray part 230 and the second water spray part 240, thereby recycling the water in the pool body 100 and reducing the waste of water resources; of course, the water inlet end 211 of the water pump 210 can also be connected to other water sources.

[0043] Preferably, if Figure 5 As shown, a groove 112 is provided at the lower end of the inclined surface 110; the groove 112 allows more mud and sand to be concentrated in the sand collecting portion 111 at the lower end of the inclined surface 110; specifically, the water outlet of the second water spraying member 240 extends into the groove 112, which can more directly impact the mud and sand in the sand collecting portion 111.

[0044] Specifically, the water spray pipe 241 can be a hard plastic pipe, a steel pipe or a flexible hose in the prior art, and the sand pump 300 is fixedly connected to the top side of the pool body 100 .

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A grit chamber, characterized in that: It includes a pool body, a sand pump and a jet unit; The bottom side of the pool body is provided with an inclined surface, and the lower end of the inclined surface is a sand collecting part; The sand inlet end of the sand pump extends into the sand collecting part; The spray unit includes a first spray member, a second spray member, and a water supply member for supplying water to the first spray member and the second spray member; The water outlet of the first water spraying member is located at the higher end of the inclined surface and faces the sand collecting portion, and the water outlet of the second water spraying member is located at the lower end of the inclined surface and faces the sand collecting portion.

2. A grit chamber as claimed in claim 1, characterized in that: The first water spraying member comprises a hollow square box obliquely arranged at the higher end of the inclined surface, the water outlet of the first water spraying member is an opening opened at the lower end of the square box, and the water supply member supplies water to the inside of the square box.

3. A grit chamber as claimed in claim 2, characterized in that: The second water spray component includes a plurality of water spray pipes which are inclined and spaced apart, wherein the higher end of the water spray pipe is a water inlet end, and the lower end is a water outlet end. The water inlet end of the water spray pipe extends from the opening into the square box, and the water outlet of the second water spray component is the water outlet end of the water spray pipe.

4. A grit chamber as claimed in claim 3, characterized in that: A diverter plate is fixedly connected inside the square box, a water collecting portion is formed between the diverter plate and the bottom side of the square box, and the water supply component supplies water to the water collecting portion; the diverter plate is provided with a plurality of first diverter holes connected to the opening and a plurality of second diverter holes connected to the water inlet end of the water spray pipe.

5. A grit chamber as claimed in claim 4, characterized in that: A plurality of connecting tubes are fixedly connected to the diverter plate, each connecting tube is provided with at least one second diverter hole, and the inner side wall of the water inlet end of the water spray pipe is threadedly connected to the outer side wall of the connecting tube.

6. A grit chamber as claimed in claim 5, characterized in that: The water supply component is a water pump, and the water outlet end of the water pump is communicated with the water collecting part.

7. A grit chamber as claimed in claim 6, characterized in that: The water outlet end of the water pump is fixedly connected with a connecting pipe, and the connecting pipe is fixedly connected to the top side of the square box.

8. A grit chamber as claimed in claim 6, characterized in that: The water inlet end of the water pump is communicated with the inner top of the pool body.

9. A grit chamber as claimed in claim 1, characterized in that: A groove is arranged at the lower end of the inclined surface.

10. A grit chamber as claimed in claim 9, characterized in that: The water outlet of the second water spraying member extends into the groove.

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