Auxiliary precipitation structure of machining tank

Abstract

The auxiliary precipitation structure comprises a plurality of inclined plates and a fixing frame, a stirring machine is arranged in the center of the machining pool, an annular water outlet groove is formed in the position, close to the outer side edge, in the machining pool, an annular precipitation groove is correspondingly formed below the water outlet groove, and the two opposite side walls in the precipitation groove are the first side wall and the second side wall. The diameter of the first side wall is larger than that of the second side wall, and clear water at the separation position of the precipitation tank flows into the water outlet tank; the fixing frame is detachably and fixedly connected with the first side wall and the second side wall, the inclined plates are sequentially connected end to end to form a ring shape and are located above the fixing frame, the included angle between each inclined plate and the horizontal plane is 55-65 degrees, a plurality of through holes are formed in each inclined plate, and the upper surfaces and the lower surfaces of the inclined plates are communicated through the through holes. The scheme is simple in structure, low in construction difficulty, short in construction period and low in cost. Impurities in water can be attached to or precipitated on the inclined plate, so that the water purification efficiency is improved, the turbidity of the water can be reduced, and the water purification effect is good.

Description

Technical Field

[0001] This utility model belongs to the field of water treatment technology, specifically relating to an auxiliary sedimentation structure for a mechanically processed tank. Background Technology

[0002] Currently, mechanical sedimentation tanks are commonly used for preliminary sedimentation treatment of raw water. After coagulation treatment in the mechanical sedimentation tank, a portion of the raw water enters a circulating water tank for sterilization, slow release, and scale inhibition treatment as circulating water, while the remaining portion is used for fire fighting and chemical desalination. When mechanical sedimentation tanks have been in use for a long time, the effluent quality becomes unstable. During full-load operation, a sludge overflow phenomenon occurs, and the tank maintains a constant output of 360 t / h, producing effluent with a turbidity of less than 10 NTU. This is particularly noticeable at low temperatures, where the formed flocs are small and difficult to settle, resulting in poor sedimentation and making it difficult to meet the operating conditions of high-flow-rate water supply.

[0003] Therefore, a new technology is needed to solve the problem of poor sedimentation effect in existing machined sedimentation tanks. Utility Model Content

[0004] To address the aforementioned problems in the prior art, this utility model provides an auxiliary sedimentation structure for a machined tank, which facilitates sedimentation and achieves good sedimentation results.

[0005] The present invention adopts the following technical solution:

[0006] An auxiliary sedimentation structure for a machining tank includes several inclined plates and a fixed frame. A stirrer is set at the center of the machining tank. An annular water outlet trough is provided near the outer edge of the machining tank. The water outlet trough is arranged around the stirrer. An annular sedimentation trough is provided below the water outlet trough. Two opposite sidewalls are arranged in the sedimentation trough as a first sidewall and a second sidewall. The diameter of the first sidewall is larger than the diameter of the second sidewall. The clear water at the separation point of the sedimentation trough flows into the water outlet trough.

[0007] The fixing frame is detachably fixed to the first side wall and the second side wall. Each of the inclined plates is connected end to end in a ring shape and located above the fixing frame. The angle between each of the inclined plates and the horizontal plane is 55°-65°. Each of the inclined plates is provided with a number of through holes, and each of the through holes connects the upper and lower surfaces of the inclined plate.

[0008] As a further improvement to the technical solution of this utility model, the fixing frame includes a bottom support connected sequentially from top to bottom. The bottom support includes a plurality of spaced support rods. Each support rod is horizontally arranged and its two ends are detachably fixedly connected to the first side wall and the second side wall, respectively. The plurality of support rods are used to support the plurality of inclined plates.

[0009] As a further improvement to the technical solution of this utility model, the fixing frame further includes an upper support, which includes a plurality of connecting pipes. The two ends of each connecting pipe are respectively fixedly connected to two adjacent support rods. The connecting pipes between the two adjacent support rods are parallel and spaced apart. The lower end of each inclined plate is abutted and connected to the support rod.

[0010] As a further improvement to the technical solution of this utility model, the bottom support also includes a plurality of first pads and second pads corresponding one-to-one with the first pads. Each first pad is detachably fixed to the first side wall, and each second pad is detachably fixed to the second side wall. The two ends of each support rod are respectively fixedly connected to a first pad and a second pad.

[0011] As a further improvement to the technical solution of this utility model, the first sidewall is vertically arranged, and each of the first pads is parallel to and closely attached to the first sidewall. The second sidewall is inclined and gradually moves away from the first sidewall from bottom to top, and each of the second pads is parallel to and closely attached to the second sidewall.

[0012] As a further improvement to the technical solution of this utility model, the bottom support also includes pads that correspond one-to-one with each of the support rods. The upper end of each pad is tightly connected to the corresponding support rod, and the side is fixedly connected to the corresponding first pad plate.

[0013] As a further improvement to the technical solution of this utility model, the pad includes a first block and a second block that are connected to each other in an inverted L-shape. The first block is parallel to and abuts against the corresponding support rod, and the second block is parallel to and fixedly connected to the corresponding first pad plate.

[0014] As a further improvement to the technical solution of this utility model, the distance between the top of each inclined plate and the bottom surface of the water outlet tank is 45mm-60mm.

[0015] As a further improvement to the technical solution of this utility model, the upper end of each inclined plate is close to the first side wall, and the lower end is close to the second side wall and connected to the connecting pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] The auxiliary sedimentation structure of the mechanically added tank in this solution is simple in structure, easy to construct, has a short construction period, and low cost. Impurities in the water can adhere to or settle on the inclined plate, which facilitates sedimentation, improves water purification efficiency, reduces water turbidity, and improves the quality of produced water. The improved water quality can be used to increase the concentration ratio of circulating water, thereby reducing the amount of sewage discharged into the circulating water system and saving water resources. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0019] Figure 1 This is a schematic diagram of the overall structure of the machining tank;

[0020] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of the structure of section A in the middle;

[0022] Figure 4 yes Figure 2 Enlarged view of the structure of section B.

[0023] Figure label:

[0024] 1-Mechanical processing tank; 11-Outlet tank; 12-Sedimentation tank; 121-First sidewall; 122-Second sidewall; 13-Agitator;

[0025] 2- Inclined plate;

[0026] 3-Fixing frame; 31-Connecting pipe; 32-Support rod; 33-First pad; 34-Second pad; 35-Padded block; 351-First block; 352-Second block; 36-Expansion bolt;

[0027] 4-First spacing. Detailed Implementation

[0028] The following will provide a clear and complete description of the concept, specific structure, and technical effects of this utility model in conjunction with the embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of this utility model. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0029] It should be noted that, unless otherwise specified, when a feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. Furthermore, the descriptions of "upper," "lower," "left," and "right" used in this utility model are only relative to the relative positional relationships of the various components of this utility model in the accompanying drawings.

[0030] Reference Figure 1 and Figure 2An auxiliary sedimentation structure for a machining tank includes several inclined plates 2 and a fixing frame 3. The fixing frame 3 supports and fixes the inclined plates 2. A stirrer 13 is arranged at the center of the machining tank 1. An annular outlet trough 11 is arranged near the outer edge of the machining tank 1, and the outlet trough 11 surrounds the stirrer 13. An annular sedimentation tank 12 is arranged below the outlet trough 11. The sedimentation tank 12 has two opposite sidewalls, a first sidewall 121 and a second sidewall 122. The diameter of the first sidewall 121 is larger than the diameter of the second sidewall 122. The clear water separated from the sedimentation tank 12 flows into the outlet trough 11. The sedimentation tank 12 can be directly connected to the outlet trough 11 above, or other conventional connection methods can be used. The fixing frame 3 is detachably fixed to the first sidewall 121 and the second sidewall 122. The inclined plates 2 are sequentially connected in an annular shape and located above the fixing frame 3. The angle between each inclined plate 2 and the horizontal plane is 55°-65°, preferably 60°. Each inclined plate 2 has several through holes, and each through hole connects the upper and lower surfaces of the inclined plate 2. The size and number of inclined plates 2 can be set according to actual conditions. The area above the fixing frame 3 can be partially or completely filled. Several inclined plates 2 are sequentially tilted and placed above the fixing frame 3, and then fixed or tied to the fixing frame 3. In one embodiment, the water outlet tank 11 is formed by several spaced-apart water outlet support channels surrounding the mixer 13. Each water outlet support channel has a corresponding sedimentation support channel below it. The several sedimentation support channels surround the mixer 13 to form an annular sedimentation tank 12. Each sedimentation support channel is equipped with an inclined plate 2 and a fixing frame 3.

[0031] Water in the outlet tank 11 can flow into the next process flow through the outlet pipe or outlet hole provided on the outlet tank 11. The position of the outlet pipe or outlet hole can be set according to the actual situation. For example, it can be set near the upper part of the outlet tank 11 to avoid sediment from flowing out. The sedimentation tank 12 is connected to the inlet pipe or inlet hole. Raw water or other relatively turbid water can flow into the sedimentation tank 12 through the inlet pipe or inlet hole. The position of the inlet pipe or inlet hole can be set according to the actual situation. For example, it can be set near the lower part of the sedimentation tank 12 to prevent raw water or relatively turbid water from flowing directly into the upper part of the sedimentation tank 12, and to prevent sediment from floating up or entering the outlet tank 11 and making the water in the outlet tank 11 turbid.

[0032] Impurities in the water can adhere to or settle on the inclined plate 2, facilitating sedimentation and improving water purification efficiency. This also reduces turbidity and improves water quality. The improved water quality allows for a higher concentration ratio in the circulating water system, reducing wastewater discharge and conserving water resources. The through-holes in the inclined plate 2 do not obstruct water flow. The inclined plate 2 improves water quality and increases the operating output of the processing tank 1, adding a ring of sedimentation equipment along the circumference of the processing tank 1 within the separation chamber. The inclined plate 2 can be made of modified ethylene-propylene copolymer, which significantly extends its service life, increases the unit water treatment capacity, and prolongs the cleaning cycle. Furthermore, the inclined plate 2 and fixing frame 3 installed in the sedimentation tank 12 have a simple structure, are easy to construct, have a short construction period, low cost, high hydraulic load, large sludge capacity, and long service life.

[0033] Specifically, the through holes on the inclined plate 2 can be formed by setting multiple ribs between two adjacent sheets. A single inclined plate 2 can adopt a multi-layer sheet structure, with multiple ribs spaced apart between two adjacent sheets. The two ends of each rib are fixedly connected to two adjacent sheets respectively. The cross-section of the overall structure formed by connecting several sheets and several ribs is multi-grid or checkerboard. The four vertical outer sides of the inclined plate 2 have protruding ribs and sheet ends to facilitate the heat fusion connection between two adjacent inclined plates 2. In use, nylon ropes or other fixing methods can be used to fix the heat-fused inclined plate 2 group on the bracket.

[0034] Specifically, the fixing frame 3 includes a bottom support connected sequentially from top to bottom. The bottom support includes a plurality of spaced-apart support rods 32. Each support rod 32 is horizontally arranged and its two ends are detachably fixedly connected to the first side wall 121 and the second side wall 122, respectively. The plurality of support rods 32 are used to support the plurality of inclined plates 2. Depending on the actual use, the upper end of each inclined plate 2 can be close to the first side wall 121, and the lower end can be close to the second side wall 122 and connected to the connecting pipe 31. The support rods 32 can be made of channel steel.

[0035] Specifically, the fixing frame 3 also includes an upper support, which includes a plurality of connecting pipes 31. The two ends of each connecting pipe 31 are respectively fixedly connected to two adjacent support rods 32. The fixed connection can be achieved by welding. The connecting pipes 31 between the two adjacent support rods 32 are parallel and spaced apart. The lower end of each inclined plate 2 is abutted and connected to the support rod 32.

[0036] Specifically, the bottom support also includes a plurality of first pads 33 and second pads 34 corresponding to the first pads 33 one by one. Each first pad 33 is detachably fixed to the first side wall 121, and each second pad 34 is detachably fixed to the second side wall 122. Both ends of each support rod 32 are respectively fixedly connected to a first pad 33 and a second pad 34. The first pads 33 and second pads 34 can be fixed to the corresponding side wall surfaces using expansion bolts 36.

[0037] Specifically, the first sidewall 121 is vertically arranged, each of the first pads 33 is parallel to and closely attached to the first sidewall 121, the second sidewall 122 is inclined and gradually moves away from the first sidewall 121 from bottom to top, and each of the second pads 34 is parallel to and closely attached to the second sidewall 122.

[0038] Specifically, the bottom support also includes pads 35 that correspond one-to-one with each of the support rods 32. The upper end of each pad 35 is tightly connected to the corresponding support rod 32, and the side is fixedly connected to the corresponding first pad 33.

[0039] Specifically, the pad 35 includes a first block 351 and a second block 352 that are connected to each other in an inverted L-shape. The first block 351 is parallel to and abuts against the corresponding support rod 32, and the second block 352 is parallel to and fixedly connected to the corresponding first pad 33.

[0040] Specifically, the distance between the top of each inclined plate 2 and the bottom surface of the water outlet trough 11 is a first distance 4. The size of the first distance 4 can be 45 mm to 60 mm, and the first distance is preferably 50 mm. This allows sufficient space between the top of the inclined plate 2 and the bottom of the water outlet trough, facilitating the installation of the inclined plate 2 and promoting water flow and sedimentation of impurities in the water, preventing alum floc from floating to the water outlet trough 11 area. When the water outlet trough 11 is connected to the sedimentation tank 12 below, the distance between the position of the connection node between the water outlet trough 11 and the sedimentation tank 12 and the top of the inclined plate 2 is the first distance 4. The water in the water outlet trough area 11 is relatively clear with fewer impurities, and the setting of the first distance 4 is conducive to the sedimentation of impurities in the water.

[0041] Example 1

[0042] In this embodiment, the No. 1 machining tank 1 has a diameter of 16.9m, and its clear water separation zone has a planar area of ​​approximately 165㎡. Using the auxiliary sedimentation structure of this machining tank, inclined plates 2 are installed inside the clear water separation zone of the machining tank 1. The inclined plates 2 are installed below the outlet trough 11 of the clear water separation zone and near the bottom of the outlet trough 11 via a fixing frame 3. The top of the inclined plate 2 is approximately 50mm from the bottom of the outlet trough 11 above it. The inclined plate 2 is 1m long and installed at a 60° angle to the horizontal plane. The fixing frame 3 is installed from bottom to top inside the sedimentation tank 12. The support rod 32 is made of channel steel, and both ends of the channel steel are welded to the first pad 33 and the second pad 34. The first pad 33 and the second pad 34 can be fixed to the internal wall of the machining tank 1 using expansion bolts 36. The connecting pipe 31 is preferably a round pipe, and both ends of the connecting pipe 31 are fixedly connected to two adjacent channel steels by welding. Finally, the heat-fused inclined plate 2 assembly is fixed to the support frame using nylon rope. When in use, the sedimentation efficiency is significantly improved, and the clear water zone is clear and free of alum flocs. Since its commissioning, the feedback from the operators has been positive. When running at full load, the turbidity of the effluent from Unit 1 plus Tank 1 can be less than 1 NTU.

[0043] As for the No. 2 machine-addressing tank, which has the same specifications as the No. 1 machine-addressing tank 1 but without an auxiliary sedimentation structure, the effect comparison between the No. 1 machine-addressing tank 1 and the No. 2 machine-addressing tank 1 is shown in Table 1 below.

[0044]

[0045]

[0046] Table 1

[0047] The auxiliary sedimentation structure of the mechanical processing tank using this scheme can reduce the turbidity of the produced water from 10 NTU to 1 NTU, resulting in a significant improvement in water quality. This improvement in water quality at the source ensures safe production in subsequent water-using units. Furthermore, the improved quality of the makeup water in the circulating water system helps to increase the concentration ratio of the circulating water, reduce the amount of wastewater discharged into the circulating water system, and achieve good water-saving effects. The No. 1 mechanical processing tank, using the auxiliary sedimentation structure of this scheme, increases its output by 50%, reaching a full-load operation of 600 t / h. The water production of the No. 1 mechanical processing tank can meet the water supply needs (approximately 500 t / h) under special operating conditions in the first phase of production.

[0048] Other aspects of the auxiliary sedimentation structure for the machined tank described in this utility model can be found in the prior art and will not be repeated here.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. An assisted settling structure for a machine pool, characterized by: The application relates to a machine-added pool, which comprises several inclined plates and a fixing frame, a stirring machine is arranged in the center of the machine-added pool, a ring-shaped water outlet groove is arranged near the outer side edge of the machine-added pool, the stirring machine is arranged in the ring-shaped water outlet groove, a ring-shaped sedimentation groove is arranged below the water outlet groove, two opposite side walls in the sedimentation groove are a first side wall and a second side wall, the diameter of the first side wall is larger than that of the second side wall, and the clean water flowing out of the separation position of the sedimentation groove flows into the water outlet groove. The fixing frame is detachably fixedly connected with the first side wall and the second side wall, the inclined plates are sequentially connected in a ring shape and located above the fixing frame, the included angle between each inclined plate and the horizontal plane is 55-65 DEG, a plurality of through holes are arranged on each inclined plate, and the through holes are connected with the upper and lower surfaces of the inclined plate.

2. The assisted settling structure of a mechanical cell according to claim 1, characterized in that: The fixing frame comprises a bottom layer support which is sequentially connected from top to bottom, the bottom layer support comprises a plurality of support rods which are arranged at intervals, the support rods are horizontally arranged and detachably fixedly connected with the first side wall and the second side wall at both ends, and the support rods are used for supporting the inclined plates.

3. The assisted settling structure of a mechanical cell according to claim 2, characterized in that: The fixing frame further comprises an upper layer support, the upper layer support comprises a plurality of connecting pipes, both ends of each connecting pipe are fixedly connected with two adjacent support rods, and each connecting pipe between the two adjacent support rods is parallel and arranged at intervals; and the lower end of each inclined plate is abuttingly connected with the support rod.

4. The assisted settling structure of a mechanical cell according to claim 3, characterized in that: The bottom layer support further comprises a plurality of first backing plates and a plurality of second backing plates corresponding to the first backing plates, each first backing plate is detachably fixed on the first side wall, each second backing plate is detachably fixed on the second side wall, and both ends of each support rod are fixedly connected with a first backing plate and a second backing plate.

5. The assisted settling structure of a mechanical cell according to claim 4, characterized in that: The first side wall is vertically arranged, each first backing plate is parallel to and close to the first side wall, the second side wall is obliquely arranged and gradually away from the first side wall from bottom to top, and each second backing plate is parallel to and close to the second side wall.

6. The assisted settling structure of a swimming pool according to claim 5, characterized in that: The bottom layer support further comprises a plurality of backing blocks corresponding to the support rods, the upper end of each backing block is closely connected with the corresponding support rod, and the side surface of the backing block is fixedly connected with the corresponding first backing plate.

7. The assisted settling structure of a swimming pool according to claim 6, characterized in that: The backing block comprises a first block and a second block which are connected in an inverted L shape, the first block is parallel to and abuttingly connected with the corresponding support rod, and the second block is parallel to and fixedly connected with the corresponding first backing plate.

8. The assisted settling structure of claim 4, wherein: The distance between the top of each inclined plate and the bottom surface of the water outlet groove is 45-60 mm.

9. The assisted settling structure of a swimming pool according to claim 3, characterized in that: The upper end of each inclined plate is close to the first side wall, and the lower end is close to the second side wall and connected with the connecting pipe.

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