Reclaimed water recycling system for ultrafiltration membrane filtration

Abstract

The utility model discloses an ultrafiltration membrane filtration reclaimed water recycling system which comprises a raw water tank and a quartz sand filter, the quartz sand filter is arranged on the right side of the raw water tank, the raw water tank is connected with the quartz sand filter through a raw water pump, a sand box is arranged in the quartz sand filter, and a water inlet is formed in the sand box. Two box covers are arranged at the upper end of the sand box, holes are formed in the upper ends of the two box covers and the lower end of the sand box at equal intervals, the holes are used for guiding inflow and drainage of sewage, and the sand box is supported and fixed through a fixing frame welded to the lower side of the inner wall of the quartz sand filter; and when the quartz sand needs to be cleaned and replaced, the sand box is pulled out of the quartz sand filter through the pull rod, and the quartz sand in the sand box is poured out to be cleaned or replaced. In this way, the quartz sand is placed in the quartz sand filter, so that the convenience of cleaning and replacing the quartz sand can be improved.

Description

Technical Field

[0001] This utility model belongs to the relevant technical field, specifically relating to an ultrafiltration membrane filtration water reuse system. Background Technology

[0002] Ultrafiltration membrane filtration water reuse system is a system that uses ultrafiltration membrane technology to filter out solid particles, microorganisms, organic matter and other substances from wastewater, thereby purifying the water quality. This system is mainly used for wastewater treatment generated in industrial production processes, recycling the treated water for reuse. However, the quartz sand inside the sand filter tank of the ultrafiltration membrane filtration water reuse system needs to be cleaned and replaced regularly. Traditional sand filter tanks usually have quartz sand poured directly into the tank for use, but when replacing or cleaning the quartz sand in the tank, it is necessary to scoop out the quartz sand from the tank and align it for cleaning. This cleaning method is too cumbersome and time-consuming. Utility Model Content

[0003] The purpose of this invention is to provide an ultrafiltration membrane filtration water reuse system to solve the problem that the quartz sand inside the sand filter tank of the ultrafiltration membrane filtration water reuse system mentioned in the background art needs to be cleaned and replaced regularly. Traditional sand filter tanks usually have quartz sand poured directly into the tank for use, but when replacing or cleaning the quartz sand in the tank, it is necessary to scoop out the quartz sand from the tank and align it for cleaning. This cleaning method is too cumbersome and time-consuming.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an ultrafiltration membrane filtration water reuse system, comprising a raw water tank and a quartz sand filter;

[0005] A quartz sand filter is installed on the right side of the raw water tank. The raw water tank and the quartz sand filter are connected by a raw water pump. A sand box is installed inside the quartz sand filter.

[0006] The sand box is provided with two boxes on the upper end. The upper end of the two boxes and the lower end of the sand box are provided with holes at equal intervals. The holes are used to guide the inflow and discharge of sewage.

[0007] Preferably, a fixing frame is welded to the lower side of the inner wall of the quartz sand filter, and the fixing frame is used to support and fix the sand box.

[0008] Preferably, the two box covers are connected and fixed to the sand box by hinges, and the two box covers can be opened and closed at the top of the sand box by hinges.

[0009] Preferably, the sand box is provided with pull rods on the left and right sides of the upper end, and the two pull rods are used to pull the sand box. The diameter of the holes at the lower end of the sand box is smaller than the diameter of the quartz sand and the holes are more densely distributed.

[0010] Preferably, the quartz sand filter has an inlet at the top and an add-medium hole on the left side of the inlet, through which decomposition substances can be poured into the quartz sand filter.

[0011] Preferably, a fixing plate is provided on the lower side of the inner wall of the quartz sand filter, and multiple filter caps are provided at equal intervals on the upper end of the fixing plate. The multiple filter caps are used to block quartz sand debris.

[0012] Preferably, the quartz sand filter is provided with a drain outlet at the lower end, which is used to discharge the filtered water to the outside, and the quartz sand filter is provided with multiple support feet at the lower end.

[0013] Preferably, a water distribution plate is provided on the upper side of the inner wall of the quartz sand filter, and the water distribution plate is connected and fixed to the inner wall of the quartz sand filter by multiple fixing rods.

[0014] Preferably, a bag filter is provided on the right side of the quartz sand filter, and an ultrafiltration unit is provided on the right side of the bag filter. The bag filter and the ultrafiltration unit are used for deep filtration of sewage.

[0015] Preferably, an ultrafiltration product water tank is provided on the right side of the ultrafiltration unit, which is used to store filtered wastewater. A backwash pump is provided on the left side of the ultrafiltration product water tank, which is connected to the quartz sand filter, the bag filter and the ultrafiltration unit.

[0016] Compared with the prior art, this utility model provides an ultrafiltration membrane filtration water reuse system, which has the following beneficial effects:

[0017] Wastewater from the raw water tank is pumped into the quartz sand filter for filtration. After filtration, the water continues to flow and is filtered by a bag filter and an ultrafiltration unit before finally flowing into the ultrafiltration product water tank. The quartz sand in the filter is fixed to the inner wall of the filter by a sand box, which is supported by a fixing frame welded to the lower side of the filter's inner wall. Wastewater is introduced into the sand box through holes at the top and bottom for filtration and then discharged downwards. When the quartz sand needs to be cleaned or replaced, the sand box can be pulled out of the filter using a pull rod, and the top cover of the sand box can be opened to empty the quartz sand for cleaning or replacement. This method of placing the quartz sand in the filter increases the convenience of cleaning and replacing the quartz sand. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a water reuse system for ultrafiltration membrane filtration according to the present invention.

[0019] Figure 2 This is a schematic diagram of the quartz sand filter structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the quartz sand filter of this utility model.

[0021] Figure 4 This is a schematic diagram of the connection structure between the fixed frame and the quartz sand filter of this utility model.

[0022] In the diagram: 1. Raw water tank; 2. Quartz sand filter; 3. Fixing frame; 4. Ultrafiltration product water tank; 5. Backwash pump; 6. Sand box; 7. Ultrafiltration unit; 8. Bag filter; 9. Raw water pump; 10. Media adding hole; 11. Inlet; 12. Outlet; 13. Support leg; 14. Fixing plate; 15. Filter cap; 16. Tie rod; 17. Hole; 18. Water distribution tray; 19. Fixing rod; 20. Tank cover; 21. Hinge. Detailed Implementation

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

[0024] This utility model provides, for example Figure 1-4 The ultrafiltration membrane filtration water reuse system shown includes a raw water tank 1 and a quartz sand filter 2;

[0025] A quartz sand filter 2 is installed on the right side of the raw water tank 1. The raw water tank 1 and the quartz sand filter 2 are connected by a raw water pump 9. A sand box 6 is installed inside the quartz sand filter 2.

[0026] The upper end of the sand box 6 is provided with two box covers 20. The upper end of the two box covers 20 and the lower end of the sand box 6 are provided with holes 17 at equal intervals. The holes 17 are used to guide the inflow and discharge of sewage.

[0027] Wastewater from raw water tank 1 is pumped by raw water pump 9 into quartz sand filter 2 for filtration. After entering quartz sand filter 2, the wastewater flows into sand box 6 through holes 17. After entering sand box 6, some harmful substances in the wastewater are adsorbed on the surface of quartz sand, thus filtering the wastewater. The filtered wastewater flows downward through holes 17 at the bottom of sand box 6.

[0028] like Figure 3 and Figure 4As shown, a fixed frame 3 is welded to the lower inner wall of the quartz sand filter 2. The fixed frame 3 is used to support and fix the sand box 6. Two box covers 20 are connected and fixed to the sand box 6 by hinges 21. The two box covers 20 can be opened and closed at the upper end of the sand box 6 by hinges 21. Pull rods 16 are provided on the left and right sides of the upper end of the sand box 6. The two pull rods 16 are used to pull the sand box 6. The diameter of the holes 17 at the lower end of the sand box 6 is smaller than the diameter of the quartz sand and they are more densely distributed.

[0029] The sand box 6 is supported and fixed by the fixing frame 3 welded to the lower side of the inner wall of the quartz sand filter 2. When the quartz sand needs to be cleaned and replaced, the sand box 6 can be pulled out from the quartz sand filter 2 by the pull rod 16, and the box cover 20 at the top of the sand box 6 can be opened to pour out the quartz sand in the sand box 6 for cleaning or replacement. The holes 17 with a diameter smaller than the outer diameter of the quartz sand can prevent the quartz sand from being carried out of the sand box 6 by the water flow.

[0030] like Figure 2 and Figure 3 As shown, an inlet 11 is provided at the upper end of the quartz sand filter 2, and an adding medium hole 10 is provided on the left side of the inlet 11. The adding medium hole 10 can pour decomposed substances into the quartz sand filter 2. A water distribution plate 18 is provided on the upper side of the inner wall of the quartz sand filter 2. The water distribution plate 18 is connected and fixed to the inner wall of the quartz sand filter 2 by multiple fixing rods 19.

[0031] Wastewater is discharged into the quartz sand filter 2 through the inlet 11. After entering the quartz sand filter 2, the wastewater is blocked and diverted by the water distribution plate 18, thereby reducing the impact force of the wastewater flowing down.

[0032] like Figure 1 As shown, a fixing plate 14 is provided on the lower side of the inner wall of the quartz sand filter 2. Multiple filter caps 15 are equidistantly arranged on the upper end of the fixing plate 14. The multiple filter caps 15 are used to block quartz sand debris. A drain outlet 12 is provided at the lower end of the quartz sand filter 2. The drain outlet 12 is used to discharge the filtered water to the outside. Multiple support feet 13 are provided at the lower end of the quartz sand filter 2.

[0033] The wastewater filtered by the quartz sand flows downward and then flows downward again through the secondary filtration of the filter cap 15, and is discharged outward through the drain outlet 12. The filter cap 15 is used to block the quartz sand debris falling from the sand box 6.

[0034] like Figure 1 As shown, a bag filter 8 is installed on the right side of the quartz sand filter 2, and an ultrafiltration unit 7 is installed on the right side of the bag filter 8. The bag filter 8 and the ultrafiltration unit 7 are used for deep filtration of sewage. An ultrafiltration product water tank 4 is installed on the right side of the ultrafiltration unit 7. The ultrafiltration product water tank 4 is used to store the filtered sewage. A backwash pump 5 is installed on the left side of the ultrafiltration product water tank 4. The backwash pump 5 is connected to the quartz sand filter 2, the bag filter 8 and the ultrafiltration unit 7.

[0035] Wastewater filtered by quartz sand filter 2 flows to bag filter 8 for secondary filtration. After secondary filtration by bag filter 8, wastewater flows to ultrafiltration unit 7 for final filtration. After ultrafiltration unit 7 has finished filtering the wastewater, the water is discharged into ultrafiltration product water tank 4 for storage. Backwash pump 5 is used to backwash water in the quartz sand filter 2, bag filter 8, ultrafiltration unit 7 and connecting pipes to clean the attached substances.

[0036] The working principle of this utility model is as follows: Wastewater from the raw water tank 1 is pumped by the raw water pump 9 into the quartz sand filter 2 for filtration. The water filtered by the quartz sand filter 2 continues to flow and is subsequently filtered by the bag filter 8 and the ultrafiltration unit 7, finally flowing into the ultrafiltration product water tank 4. The quartz sand in the quartz sand filter 2 is fixed to the inner wall of the quartz sand filter 2 by being installed in a sand box 6. The sand box 6 is supported and fixed by a fixing frame 3 welded to the lower side of the inner wall of the quartz sand filter 2. Wastewater is introduced into the sand box 6 through holes 17 at the top and bottom of the sand box 6 for filtration and then discharged downwards. When it is necessary to clean or replace the quartz sand... The sand box 6 can be pulled out from the quartz sand filter 2 via the pull rod 16, and the cover 20 at the top of the sand box 6 can be opened to pour out the quartz sand in the sand box 6 for cleaning or replacement. The sewage filtered by the quartz sand filter 2 will flow to the bag filter 8 for secondary filtration. After the sewage passes through the bag filter 8 for secondary filtration, it will flow to the ultrafiltration host 7 for final filtration. After the ultrafiltration host 7 has finished filtering the sewage, the water will be discharged into the ultrafiltration product water tank 4 for storage. The backwash pump 5 is used to backwash the quartz sand filter 2, the bag filter 8, the ultrafiltration host 7 and the connecting pipes to clean the attached substances.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An ultrafiltration membrane filtering reclaimed water reuse system, comprising a raw water tank (1) and a quartz sand filter (2); The right side of the raw water tank (1) is provided with a quartz sand filter (2), and the raw water tank (1) and the quartz sand filter (2) are connected through a raw water pump (9); the quartz sand filter (2) is internally provided with a sand tank (6). characterized in that The upper end of the sand tank (6) is provided with two tank covers (20), and the upper end of each tank cover (20) is provided with a hole (17) equidistant from the lower end of the sand tank (6); the hole (17) is used for guiding the inflow and discharge of sewage.

2. The ultrafiltration membrane filtration reclaimed water reuse system according to claim 1, characterized in that: The lower side of the inner wall of the quartz sand filter (2) is provided with a fixed frame (3) through welding, and the fixed frame (3) is used for supporting and fixing the sand tank (6).

3. The ultrafiltration membrane filtration system for reclaimed water reuse according to claim 2, characterized in that: The two tank covers (20) are connected and fixed to the sand tank (6) through hinges (21), and the two tank covers (20) can be opened and closed on the upper end of the sand tank (6) through the hinges (21).

4. The ultrafiltration membrane filtration reclaimed water reuse system according to claim 3, characterized in that: The left and right sides of the upper end of the sand tank (6) are provided with pull rods (16), and the two pull rods (16) are used for pulling the sand tank (6); the diameter of the hole (17) at the lower end of the sand tank (6) is smaller than the diameter of the quartz sand and is more densely distributed.

5. The ultrafiltration membrane filtration reclaimed water reuse system of claim 1, wherein: The upper end of the quartz sand filter (2) is provided with a water inlet (11), and the left side of the water inlet (11) is provided with an additive medium hole (10); the additive medium hole (10) can pour decomposition substances into the quartz sand filter (2).

6. The ultrafiltration membrane filtration system for reclaimed water reuse according to claim 5, characterized in that: The lower side of the inner wall of the quartz sand filter (2) is provided with a fixed plate (14), and the upper end of the fixed plate (14) is provided with a plurality of water filter caps (15) equidistantly; the plurality of water filter caps (15) are used for shielding quartz sand debris.

7. The ultrafiltration membrane filtration system for reclaimed water reuse according to claim 6, characterized in that: The lower end of the quartz sand filter (2) is provided with a drain (12), which is used for discharging filtered water outward; and the lower end of the quartz sand filter (2) is provided with a plurality of supporting legs (13).

8. The ultrafiltration membrane filtration system for reclaimed water reuse according to claim 7, characterized in that: The upper side of the inner wall of the quartz sand filter (2) is provided with a water distribution disc (18), which is connected and fixed to the inner wall of the quartz sand filter (2) through a plurality of fixed rods (19).

9. The ultrafiltration membrane filtration system for reuse of reclaimed water according to claim 1, characterized in that: The right side of the quartz sand filter (2) is provided with a bag filter (8), and the right side of the bag filter (8) is provided with an ultrafiltration host (7); the bag filter (8) and the ultrafiltration host (7) are used for deep filtration of sewage.

10. The ultrafiltration membrane filtration system for reuse of reclaimed water according to claim 9, characterized in that: The right side of the ultrafiltration host (7) is provided with an ultrafiltration water tank (4), which is used for storing filtered sewage; the left side of the ultrafiltration water tank (4) is provided with a backwashing pump (5); and the backwashing pump (5) is connected with the quartz sand filter (2), the bag filter (8) and the ultrafiltration host (7).

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