Sand cylinder capable of filtering and recycling backwashing water

By designing a sand tank that can filter and recycle backwash water, the problem of water waste during the sand tank backwashing process is solved, achieving efficient filtration and recycling of wastewater and improvement of water quality, while reducing energy consumption and operating costs.

CN223874518UActive Publication Date: 2026-02-06SWIRE COCA-COLA BEVERAGES JIANGSU LTD
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Patent Information

Application Number
CN202520035866.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2026-02-06
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

Existing sand filters are difficult to filter and recycle wastewater during backwashing, resulting in water waste.

Method used

A sand tank capable of filtering and recovering backwash water was designed. Wastewater is transported to a connecting pipe through a backwash drain pipe, and then to a recovery water tank for storage and treatment. The system includes multi-stage filtration with disc filters and ultrafiltration, and finally a buffer tank to improve system efficiency and water quality.

Benefits of technology

It achieves efficient filtration and recycling of wastewater, saves water resources, reduces energy consumption and operating costs, and improves water quality transparency and stability.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223874518U_ABST
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Abstract

The utility model discloses a sand cylinder capable of filtering and recovering backwashing water, which relates to the technical field of sand cylinders, and comprises a sand cylinder main body, a base, a valve body, a water inlet pipe, a water outlet pipe and a backwashing blow-off pipe, the bottom of the sand cylinder main body is connected with the base, the top of the sand cylinder main body is connected with the valve body, and the valve body is connected with the backwashing blow-off pipe. One side of the valve body is connected with a water inlet pipe and a water outlet pipe. According to the sand cylinder capable of filtering and recycling the backwashing water, the backwashing water can be conveyed into the connecting pipe through the backwashing blow-off pipe and conveyed into the recycling water tank through the connecting pipe, the recycling water tank can recycle and store the backwashing water, and when the sand cylinder body is conveyed to a designated position, the rubber pad is extruded by the sand cylinder body to deform; due to the fact that the sand cylinder body is connected with the water pump, the sand cylinder body can vibrate to a certain degree in the using process, the using effect of the sand cylinder body can be affected, a certain buffering effect can be achieved through the rubber pad, and therefore the using effect of the sand cylinder body is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to sand pot technical field, concretely is a sand pot of washing back water filtration recovery. BACKGROUND

[0002] Sand pot is a kind of water treatment equipment, sand pot utilizes special filter sand to eliminate the tiny dirt in water, when the water containing suspended dirt particles enters sand pot by pump, dirt is captured and filtered by sand bed, and the filtered clean water returns to the designated position, and this process is continuous and automatic, which provides complete circulation for filter and pipeline system, and the existing sand pot still has certain defects when being used.

[0003] The material of sand pot in the prior art is various, including glass steel, stainless steel, plastic and carbon steel, these materials have the characteristics of corrosion resistance and wear resistance, sand pot has high-precision filtering capacity, sand pot can be used for industrial sewage treatment or purification treatment of domestic sewage, and during long-time use, suspended matter, organic matter and microorganisms and other impurities in water are intercepted in sand layer, these impurities gradually accumulate in sand layer, affect the filtering speed and efficiency of sand pot, through backwashing, the bottom sediments and residues can be forcibly dispersed and removed with water flow, so as to restore the filtering capacity of sand pot, and in the process of backwashing, the water with impurities in the traditional sand pot is directly discharged to sewer, so that the sand pot is difficult to filter and recycle the backwashing water, resulting in waste of water resources. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a sand pot of washing back water filtration recovery to solve the problem that the sand pot in the current market is difficult to filter and recycle backwashing water.

[0005] To achieve the above object, the utility model provides the following technical scheme: a sand pot of washing back water filtration recovery, comprising: sand pot main body, base, valve body, water inlet pipe, water outlet pipe and backwashing and pollution discharge pipe, the bottom of sand pot main body is connected with base, the top of sand pot main body is connected with valve body, one side of valve body is connected with water inlet pipe and water outlet pipe respectively, the other side of valve body is connected with backwashing and pollution discharge pipe, connecting pipe is connected at the end of backwashing and pollution discharge pipe, the end of connecting pipe is connected with recovery water tank, the top of recovery water tank is connected with dosing barrel through pipeline, one end of recovery water tank is connected with laminated filter, one end of laminated filter is connected with ultrafilter.

[0006] Preferably, the outer side of the ultrafilter is connected with a buffer tank through a pipeline, and the outer side of the buffer tank is connected with a delivery pipe.

[0007] Preferably, the connecting pipe is L-shaped.

[0008] Preferably, the material of the recovery water tank and the buffer tank is stainless steel.

[0009] Preferably, the bottom of the base is welded with a connecting seat, and the bottom of the connecting seat is bonded with a rubber pad.

[0010] Preferably, grooves are formed between the connecting seat and the rubber pad, and the top of the connecting seat is threadedly connected with a threaded knob.

[0011] Preferably, a moving plate is slidably connected in the connecting seat, and the inside of the moving plate is threadedly connected with a threaded column.

[0012] Preferably, the bottom end of the threaded column is connected with a connecting column, and the surface of the moving plate is provided with a threaded hole.

[0013] Preferably, the size of the threaded hole is matched with the size of the threaded knob, and the moving plate is symmetrically provided with two groups about the center of the connecting seat.

[0014] Preferably, the moving plate and the connecting seat form a sliding structure, and the shape of the moving plate is L-shaped.

[0015] Compared with the prior art, the sand cylinder capable of filtering and recycling backwash water has the advantages that the backwash sewage pipe can deliver the backwash water to the connecting pipe, and then to the recovery water tank, the recovery water tank can recycle and store the backwash water, when the sand cylinder main body is transported to the designated position, the rubber pad is deformed by being extruded by the sand cylinder main body, the sand cylinder main body is connected with the water pump, so that the sand cylinder main body will vibrate to a certain extent during use, which will affect the use effect of the sand cylinder main body, the rubber pad can play a certain buffering effect, thereby improving the use effect of the sand cylinder main body.

[0016] 1. The sand cylinder has the characteristics of high-efficiency filtration, corrosion resistance, wear resistance and easy operation, so it is an ideal choice for water purification. During backwashing, the sewage is usually directly discharged into the sewer, and it is difficult to filter and recover the backwashing water, resulting in waste of water resources. The sewage generated by backwashing can be transported to the connecting pipe through the backwashing sewage pipe, and then transported to the recovered water tank through the connecting pipe. The recovered water tank can recover and store the backwashing water. At this time, the chlorine in the chemical feeding barrel can be transported to the recovered water tank, and chlorine can be added to the recovered water tank to kill microorganisms and bacteria in the sewage and improve water quality. The water in the recovered water tank can continue to be transported to the laminated filter, which can remove impurities in the water in the recovered water tank. The filtered water can be transported to the ultrafilter, and the filtered water in the ultrafilter can continue to be transported to the buffer tank. The buffer tank can improve the processing efficiency and water quality of the system, provide better water resources for users, reduce the start-stop frequency and operating load of water pumps and other equipment, and thus reduce energy consumption and operating costs. The water in the buffer tank can be transported to the designated position through the conveying pipe and reasonably utilized. By filtering and recovering the sewage after backwashing of the sand cylinder main body, water resources can be saved and waste of water resources can be avoided.

[0017] 2. The sand cylinder can filter and remove small dirt, suspended matter, organic matter and part of microorganisms in water, thereby improving water transparency. During transportation and movement, the sand cylinder main body usually needs to be lifted by a lifting device and placed on a tray, and then transported to a designated position by a manual hydraulic forklift. This process is troublesome. The fork arm of the manual hydraulic forklift can be moved into the groove. When the moving plate moves to the maximum position, the threaded knob can be tightened so that the end of the threaded knob can be screwed into the inside of the moving plate through the threaded hole. When the threaded column is rotated in a forward direction, the connecting column can be rotated and moved towards the ground. When the bottom of the connecting column moves to a position above the ground, the threaded column can be loosened. During transportation, once the sand cylinder main body inclines, the bottom of the connecting column can directly contact the ground, so that the sand cylinder main body cannot continue to incline, thereby improving the stability of the sand cylinder main body during transportation. When the sand cylinder main body is transported to a designated position, the rubber pad will be deformed by being pressed by the sand cylinder main body. Since the sand cylinder main body is connected to the water pump, the sand cylinder main body will vibrate to a certain extent during use, which will affect the use effect of the sand cylinder main body. The rubber pad can play a certain buffering role, thereby improving the use effect of the sand cylinder main body. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is a three-dimensional sectional structure schematic diagram of the connecting seat of the utility model;

[0020] Figure 3 It is the three-dimensional structure schematic view of the mobile plate of the utility model;

[0021] Figure 4 It is the three-dimensional structure schematic view of the connecting seat of the utility model.

[0022] In the figure: 1, sand cylinder main body; 2, base; 3, valve body; 4, water inlet pipe; 5, water outlet pipe; 6, backwash blowdown pipe; 7, connecting pipe; 8, recovery water tank; 9, dosing barrel; 10, laminated filter; 11, ultrafilter; 12, buffer tank; 13, conveying pipe; 14, connecting seat; 15, rubber pad; 16, groove; 17, threaded knob; 18, mobile plate; 19, threaded column; 20, connecting column; 21, threaded hole. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0024] Please refer to Figure 1 It can be known that the utility model provides a kind of technical scheme: a sand cylinder can filter and recycle backwash water, comprising: sand cylinder main body 1, base 2, valve body 3, water inlet pipe 4, water outlet pipe 5 and backwash blowdown pipe 6, the bottom of sand cylinder main body 1 is connected with base 2, the top of sand cylinder main body 1 is connected with valve body 3, one side of valve body 3 is connected with water inlet pipe 4 and water outlet pipe 5 respectively, the other side of valve body 3 is connected with backwash blowdown pipe 6, connecting pipe 7 is connected at the end of backwash blowdown pipe 6, the end of connecting pipe 7 is connected with recovery water tank 8, recovery water tank 8 is connected with dosing barrel 9 at top by pipeline, one end of recovery water tank 8 is connected with laminated filter 10, one end of laminated filter 10 is connected with ultrafilter 11, the outside of ultrafilter 11 is connected with buffer tank 12 by pipeline, the outside of buffer tank 12 is connected with conveying pipe 13, the shape of connecting pipe 7 is L-shaped, the material of recovery water tank 8 and buffer tank 12 is stainless steel.

[0025] In specific implementation, the sand cylinder has the characteristics of high-efficiency filtration, corrosion resistance, wear resistance and easy operation, making it an ideal choice for water purification. However, during long-term use, impurities can accumulate inside the sand cylinder, affecting the filtration speed and efficiency. Therefore, backwashing is required. During backwashing, the wastewater is usually directly discharged into the sewer, making it difficult to filter and recycle the backwashing water, resulting in waste of water resources. When the sand cylinder main body 1 needs to be backwashed, water can be delivered to the inside of the sand cylinder main body 1 through the water inlet pipe 4, and the inside of the sand cylinder main body 1 can be backwashed. The wastewater produced by backwashing can be delivered to the connecting pipe 7 through the backwashing wastewater discharge pipe 6, and then delivered to the recycled water tank 8 through the connecting pipe 7. The recycled water tank 8 can recycle and store the backwashing water. At this time, the chlorine in the chemical feeding barrel 9 can be delivered to the recycled water tank 8, and chlorine can be added to the recycled water tank 8 to kill microorganisms and bacteria in the wastewater, improving water quality. The water in the recycled water tank 8 can continue to be delivered to the laminated filter 10, which can remove impurities in the water in the recycled water tank 8. The filtered water can be delivered to the ultrafilter 11, which can effectively remove suspended solids, colloids, bacteria, viruses and other impurities in the water, significantly improving the water quality. The filtered water in the ultrafilter 11 can continue to be delivered to the buffer tank 12, which can effectively buffer the pressure fluctuations in the system through the compressed air or air bag inside it. The buffer tank 12 can improve the processing efficiency and water quality of the system, providing users with higher quality water resources, while reducing the start-stop frequency and operating load of water pumps and other equipment, thereby reducing energy consumption and operating costs. The water in the buffer tank 12 can be delivered to the designated location through the delivery pipe 13 and used reasonably.

[0026] Referring to Figure 1 It can be seen that by filtering and recycling the wastewater after backwashing the sand cylinder main body 1, water resources can be saved and waste of water resources can be avoided.

[0027] Referring to Figures 1-4 It can be seen that the bottom of the base 2 is welded with a connecting seat 14, the bottom of the connecting seat 14 is bonded with a rubber pad 15, a groove 16 is formed between the connecting seat 14 and the rubber pad 15, the top of the connecting seat 14 is threadedly connected with a threaded knob 17, the inside of the connecting seat 14 is slidably connected with a moving plate 18, the inside of the moving plate 18 is threadedly connected with a threaded column 19, the bottom end of the threaded column 19 is connected with a connecting column 20, a threaded hole 21 is formed on the surface of the moving plate 18, the size of the threaded hole 21 matches the size of the threaded knob 17, the moving plate 18 is symmetrically provided with two groups about the center of the connecting seat 14, a sliding structure is formed between the moving plate 18 and the connecting seat 14, the shape of the moving plate 18 is L-shaped, and the material of the connecting column 20 is iron.

[0028] In specific implementation, the sand tank can filter and remove small dirt, suspended matter, organic matter and part of microorganisms in water, thereby improving water transparency. During transportation and movement of the sand tank body 1, the sand tank body 1 is usually hoisted by hoisting equipment and placed on a tray, and then transported to a designated position by using a manual hydraulic forklift. This process is relatively troublesome. The fork arm of the manual hydraulic forklift can be moved into the recess 16. At this time, the moving plate 18 can be pulled away from the connecting seat 14. When the moving plate 18 moves, it can slide with the connecting seat 14. When the moving plate 18 slides, it can drive the threaded column 19 and the connecting column 20 to move. When the moving plate 18 moves to the maximum position, the threaded knob 17 can be tightened, so that the end of the threaded knob 17 can be screwed into the inside of the moving plate 18 through the threaded hole 21, thereby being screwed with the moving plate 18, and the threaded column 19 is positively rotated. When the threaded column 19 is positively rotated, the connecting column 20 can be rotated and moved towards the ground. When the bottom of the connecting column 20 moves to a position above the ground, the threaded column 19 can be loosened. At this time, the sand tank body 1 can be forked and transported by using the manual hydraulic forklift. During transportation of the sand tank body 1, once it is tilted, the bottom of the connecting column 20 can directly contact the ground, so that the sand tank body 1 cannot continue to tilt, thereby improving the stability of the sand tank body 1 during transportation. When the sand tank body 1 is transported to a designated position, the rubber pad 15 is deformed by being pressed by the sand tank body 1. Since the sand tank body 1 is connected with a water pump, the sand tank body 1 will vibrate to a certain extent during use, which will affect the use effect of the sand tank body 1.

[0029] Referring to Figures 1-4 It can be known that the rubber pad 15 can play a certain buffering role, thereby improving the use effect of the sand tank body 1.

[0030] In summary, when the sand cylinder main body 1 needs to be backwashed, water can be delivered to the inside of the sand cylinder main body 1 through the water inlet pipe 4, and the inside of the sand cylinder main body 1 is backwashed, the sewage produced by backwashing is delivered to the connecting pipe 7 through the backwashing sewage discharge pipe 6, and is delivered to the recovered water tank 8 through the connecting pipe 7, the recovered water tank 8 can recover and store the backwashing water, the water in the buffer tank 12 can be delivered to a designated position through the delivery pipe 13 and be reasonably used, the sewage after backwashing of the sand cylinder main body 1 is filtered and recovered, water resources can be saved, and waste of water resources can be avoided, when the sand cylinder main body 1 is transported to a designated position, the rubber pad 15 is deformed by being extruded by the sand cylinder main body 1, the sand cylinder main body 1 will vibrate to a certain extent in the use process due to the connection with the water pump, the use effect of the sand cylinder main body 1 can be affected, the rubber pad 15 can play a certain buffering effect, and thus the use effect of the sand cylinder main body 1 is improved, and the contents not described in detail in the description belong to the prior art known by the person skilled in the art.

[0031] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A sand pot that can filter and recover backwash water, comprising: The sand cylinder main body (1), the base (2), the valve body (3), the water inlet pipe (4), the water outlet pipe (5) and the backwashing blowdown pipe (6) are characterized in that: The bottom of the sand cylinder main body (1) is connected with the base (2), the top of the sand cylinder main body (1) is connected with the valve body (3), one side of the valve body (3) is connected with the water inlet pipe (4) and the water outlet pipe (5) respectively, the other side of the valve body (3) is connected with the backwashing blowdown pipe (6); The connecting pipe (7) is connected at the end of the backwashing blowdown pipe (6), the end of the connecting pipe (7) is connected with the recovered water tank (8), the top of the recovered water tank (8) is connected with the dosing barrel (9) through the pipeline, one end of the recovered water tank (8) is connected with the laminated filter (10), one end of the laminated filter (10) is connected with the ultrafilter (11).

2. A sand pot capable of filtering and recovering backwash water according to claim 1, characterized in that: The outer side of the ultrafilter (11) is connected with the buffer tank (12) through the pipeline, the outer side of the buffer tank (12) is connected with the conveying pipe (13).

3. The sand pot capable of filtering and recycling backwash water according to claim 1, characterized in that: The shape of the connecting pipe (7) is L-shaped.

4. A sand pot capable of filtering and recovering backwash water according to claim 2, characterized in that: The materials of the recovered water tank (8) and the buffer tank (12) are stainless steel.

5. The sand pot capable of filtering and recycling backwash water according to claim 1, characterized in that: The bottom of the base (2) is welded with the connecting seat (14), the bottom of the connecting seat (14) is bonded with the rubber pad (15).

6. A sand pot capable of filtering and recovering backwash water according to claim 5, characterized in that: The connecting seat (14) and the rubber pad (15) are jointly provided with the groove (16), the top of the connecting seat (14) is threadedly connected with the threaded knob (17).

7. A sand pot capable of filtering and recovering backwash water according to claim 6, characterized in that: The inside of the connecting seat (14) is slidably connected with the moving plate (18), the inside of the moving plate (18) is threadedly connected with the threaded column (19).

8. A sand pot capable of filtering and recovering backwash water according to claim 7, characterized in that: The bottom end of the threaded column (19) is connected with the connecting column (20), the surface of the moving plate (18) is provided with the threaded hole (21).

9. A sand pot capable of filtering and recovering backwash water according to claim 8, characterized in that: The size of the threaded hole (21) matches the size of the threaded knob (17), the moving plate (18) is symmetrically provided with two groups about the center of the connecting seat (14).

10. A sand pot capable of filtering and recovering backwash water according to claim 9, characterized in that: The moving plate (18) and the connecting seat (14) form a sliding structure, the shape of the moving plate (18) is L-shaped.