Backwashing structure of quartz sand filter

Abstract

The utility model relates to the field of quartz sand filters, and discloses a backwashing structure of a quartz sand filter, which comprises a bottom plate, a quartz sand filter body is fixedly mounted at the top of the bottom plate, and a filter element is arranged in the quartz sand filter body. A backwashing assembly for backwashing the filter element is arranged in the quartz sand filter body, the bottom of the quartz sand filter body is communicated with a water outlet pipe, and a placement box is fixedly mounted on the right side of the bottom of the bottom plate. Through mutual cooperation of the annular pipe, the water pump and the water inlet pipe, when the filter element needs to be washed, one end of the water pump can be communicated with the external water pipe at the moment, water in the external water pipe enters the water pump at the moment, the water pump conveys the water in the water pump into the water inlet pipe, and then the water inlet pipe conveys the water into the annular pipe; at the moment, impurities on the filter element and the inner wall of the quartz sand filter body can be washed under the action of the annular pipe.

Description

Technical Field

[0001] This utility model relates to the field of quartz sand filters, and more particularly to a backwashing structure for a quartz sand filter. Background Technology

[0002] A quartz sand filter, also known as a shallow media filter, uses quartz sand as the filter medium. Under certain pressure, water with high turbidity is filtered through a certain thickness of granular or non-granular quartz sand. This effectively traps and removes suspended solids, organic matter, colloidal particles, microorganisms, chlorine, odors, and some heavy metal ions from the water, ultimately achieving the effect of reducing water turbidity and purifying water quality.

[0003] Quartz sand filters are generally used as pretreatment for reverse osmosis and ultrafiltration equipment, and are widely used in various industries such as agriculture, irrigation, chemical, petroleum, metallurgy, and mining. After long-term use, a large number of impurities will be mixed in the quartz sand. The backwashing effect of existing quartz sand filters is not good, and the backwashing of impurities in the quartz sand is not thorough enough, which reduces the backwashing efficiency and affects the filtration efficiency. Therefore, a backwashing structure for quartz sand filters is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a backwashing structure for a quartz sand filter, which aims to improve the problem that after long-term use, a large number of impurities will be mixed in the quartz sand, resulting in poor backwashing effect of existing quartz sand filters, insufficient backwashing of impurities in the quartz sand, reduced backwashing efficiency, and affected filtration efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A backwashing structure for a quartz sand filter includes a base plate, a quartz sand filter body fixedly installed on the top of the base plate, a filter element disposed inside the quartz sand filter body, a backwashing assembly for backwashing the filter element disposed inside the quartz sand filter body, a water outlet pipe connected to the bottom of the quartz sand filter body, a placement box fixedly installed on the right side of the bottom of the base plate, the right end of the water outlet pipe connected to the left side of the placement box, and a filter assembly for filtering the backwashed water disposed inside the placement box.

[0007] As a further description of the above technical solution:

[0008] The backwashing assembly includes an annular tube, the top of which is fixedly installed on the top of the inner wall of the quartz sand filter body, the filter element is located inside the annular tube, and a water pump is fixedly installed on the left side of the top of the base plate. The output end of the water pump is connected to an inlet pipe, and the bottom of the inlet pipe is connected to the top of the quartz sand filter body.

[0009] As a further description of the above technical solution:

[0010] The annular tube is internally connected to a nozzle, and the number of nozzles is several.

[0011] As a further description of the above technical solution:

[0012] The filter assembly includes two sets of filter plates. The bottom of the filter plates is in contact with the bottom of the inner wall of the placement box. A connecting plate is provided on the top of the placement box. The bottom of the connecting plate is in contact with the top of the placement box. The bottom of the connecting plate and the top of the filter plates are fixedly installed.

[0013] As a further description of the above technical solution:

[0014] A rotating rod is rotatably mounted on the top of the placement box, and a rotating block is fixedly mounted on the top of the rotating rod. A rectangular groove is opened on the top of the connecting plate, and the top of the rotating block extends through to the top of the connecting plate. The bottom of the rotating block contacts the top of the connecting plate.

[0015] As a further description of the above technical solution:

[0016] The rear side of the placement box is connected to a drain pipe, and a valve is connected to the surface of the drain pipe;

[0017] As a further description of the above technical solution:

[0018] A handle is fixedly installed on the top of the rotating block, and the handle is used in conjunction with the rotating block.

[0019] This utility model has the following beneficial effects:

[0020] In this invention, the annular pipe, water pump, and inlet pipe work together to allow the filter element to be rinsed. When the filter element needs to be rinsed, one end of the water pump can be connected to an external water pipe, allowing water from the external water pipe to enter the water pump. The water pump then delivers the water from its internal components to the inlet pipe, which in turn delivers the water to the annular pipe. Under the action of the annular pipe, impurities on the inner wall of the filter element and the quartz sand filter body can be rinsed.

[0021] In this invention, the filter plate and the connecting plate work together to insert the filter plate into the placement box. At this time, the rinsed water will enter the placement box through the water outlet pipe. The rinsed water will be filtered by the two sets of filter plates, so that the rinsed water can be used in other places. Attached Figure Description

[0022] Figure 1 This utility model provides a structural schematic diagram of the top of the base plate;

[0023] Figure 2 A schematic diagram of the filter assembly is provided for this utility model;

[0024] Figure 3 This utility model presents a schematic diagram of the internal structure of the quartz sand filter body;

[0025] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B in the middle.

[0027] Legend:

[0028] 1. Base plate; 2. Quartz sand filter body; 3. Filter element; 4. Backwashing assembly; 41. Ring pipe; 42. Water pump; 43. Inlet pipe; 44. Nozzle; 5. Outlet pipe; 6. Placement box; 7. Filter assembly; 71. Filter plate; 72. Connecting plate; 73. Rotating rod; 74. Rotating block; 75. Rectangular groove; 8. Drain pipe; 9. Valve; 10. Handle. Detailed Implementation

[0029] 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.

[0030] Reference Figure 1-5This utility model provides an embodiment of a backwashing structure for a quartz sand filter, comprising a base plate 1, a quartz sand filter body 2 fixedly mounted on the top of the base plate 1, a filter element 3 disposed inside the quartz sand filter body 2, a backwashing assembly 4 for backwashing the filter element 3 disposed inside the quartz sand filter body 2, a water outlet pipe 5 connected to the bottom of the quartz sand filter body 2, a placement box 6 fixedly mounted on the right side of the bottom of the base plate 1, the right end of the water outlet pipe 5 connected to the left side of the placement box 6, and a filter assembly 7 disposed inside the placement box 6 for filtering the rinsed water. When it is necessary to rinse the filter element 3 inside the quartz sand filter body 2, the backwashing assembly 4 can be used to rinse the filter element 3 and its inner wall inside the quartz sand filter body 2, thereby rinsing the impurities inside the quartz sand filter body 2 and the filter element 3. At this time, the rinsed water will enter the placement box 6 through the water outlet pipe 5, and the rinsed water can be effectively filtered under the filter assembly 7, so that the filtered water can continue to be used.

[0031] Reference Figure 1-5 The backwashing assembly 4 includes an annular pipe 41, the top of which is fixedly installed on the top of the inner wall of the quartz sand filter body 2. The filter element 3 is located inside the annular pipe 41. A water pump 42 is fixedly installed on the left side of the top of the base plate 1. The output end of the water pump 42 is connected to an inlet pipe 43, and the bottom of the inlet pipe 43 is connected to the top of the quartz sand filter body 2. Through the cooperation of the annular pipe 41, the water pump 42, and the inlet pipe 43, when it is necessary to flush the filter element 3, one end of the water pump 42 can be connected to an external water pipe, and water in the external water pipe will enter the water pump 42. The water pump 42 delivers water from its internal components to the inlet pipe 43, which then delivers the water to the annular pipe 41. Under the action of the annular pipe 41, impurities on the inner wall of the filter element 3 and the quartz sand filter body 2 are flushed. The annular pipe 41 is connected to several nozzles 44. The nozzles 44 allow water entering the annular pipe 41 to flow into them, thus flushing the filter element 3 and the inner wall of the quartz sand filter body 2. This results in better filtration of the quartz sand filter body 2 during operation.

[0032] Reference Figure 1-5The filter assembly 7 includes two sets of filter plates 71. The bottom of the filter plates 71 contacts the bottom of the inner wall of the placement box 6. A connecting plate 72 is provided on the top of the placement box 6. The bottom of the connecting plate 72 contacts the top of the placement box 6. The bottom of the connecting plate 72 and the top of the filter plates 71 are fixedly installed. Through the cooperation of the filter plates 71 and the connecting plate 72, the filter plates 71 can be inserted into the placement box 6. At this time, the rinsed water will enter the placement box 6 through the water outlet pipe 5. The rinsed water will be filtered by the two sets of filter plates 71, so that the rinsed water can be used elsewhere. A rotating rod 73 is rotatably installed on the top of the placement box 6. A rotating block 74 is fixedly installed on the top of the rotating rod 73. A rectangular groove 75 is opened on the top of the connecting plate 72. The top of the rotating block 74 extends through to the top of the connecting plate 72. The bottom of the rotating block 74 contacts the top of the connecting plate 72. Through the rotating rod 73 The rotating block 74 and the rectangular groove 75 cooperate to rotate the rotating rod 73, which in turn rotates the rotating block 74 to a vertical position. At this time, the bottom of the rotating block 74 contacts the top of the connecting plate 72, thus limiting the filter plate 71 and the connecting plate 72 and preventing the filter plate 71 from shaking during operation. The rear side of the placement box 6 is connected to a drain pipe 8, and the surface of the drain pipe 8 is connected to a valve 9. Through the cooperation of the drain pipe 8 and the valve 9, when the placement box 6 is full of rinsed water, the valve 9 can be turned to drain the rinsed water from the placement box 6. A handle 10 is fixedly installed on the top of the rotating block 74. The handle 10 and the rotating block 74 work together. The handle 10 can be turned to drive the rotating block 74 to rotate, thus improving the convenience of turning the rotating block 74.

[0033] Working principle: When it is necessary to flush the impurities inside the quartz sand filter body 2 and the filter element 3, one end of the water pump 42 can be connected to the external water pipe. Water from the external water pipe will enter the water pump 42, which will then transport the water to the inlet pipe 43. The inlet pipe 43 will then transport the water to the annular pipe 41, and the water inside the annular pipe 41 will enter the nozzle 44. The nozzle 44 can flush the filter element 3 and the inner wall of the quartz sand filter body 2. The cleaned water will then enter the placement box 6 through the outlet pipe 5. At this time, the water can be effectively filtered under the two sets of filter plates 71. When the filter plates 71 become dirty after long-term use, first turn the handle 10. Turning the handle 10 will cause the rotating block 74 to rotate, and the horizontally placed rotating block 74 will become vertically placed. Finally, pull the connecting plate 72 to the top. The moving connecting plate 72 will move the filter plate 71 to the top, thereby replacing the filter plate 71.

[0034] 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. A backwash structure of a quartz sand filter comprising a bottom plate (1), characterized in that: The top of the bottom plate (1) is fixedly installed with a quartz sand filter body (2), the inside of the quartz sand filter body (2) is provided with a filter core (3), the inside of the quartz sand filter body (2) is provided with a backwashing assembly (4) for backwashing the filter core (3), the bottom of the quartz sand filter body (2) is communicated with a water outlet pipe (5), the right side of the bottom of the bottom plate (1) is fixedly installed with a placing box (6), the right end of the water outlet pipe (5) is communicated with the left side of the placing box (6), and the inside of the placing box (6) is provided with a filtering assembly (7) for filtering the washed water.

2. The backwash structure of a quartz sand filter according to claim 1, characterized in that: The backwashing assembly (4) comprises an annular pipe (41), the top of the annular pipe (41) is fixedly installed with the top of the inner wall of the quartz sand filter body (2), the filter core (3) is located in the inside of the annular pipe (41), the left side of the top of the bottom plate (1) is fixedly installed with a water pump (42), the output end of the water pump (42) is communicated with a water inlet pipe (43), and the bottom of the water inlet pipe (43) is communicated with the top of the quartz sand filter body (2).

3. A backwash structure for a quartz sand filter as claimed in claim 2, wherein: The inside of the annular pipe (41) is communicated with a spray head (44), and the number of the spray head (44) is several.

4. The backwash structure for a quartz sand filter according to claim 1, wherein: The filtering assembly (7) comprises two groups of filter plates (71), the bottom of the filter plate (71) is in contact with the bottom of the inner wall of the placing box (6), the top of the placing box (6) is provided with a connecting plate (72), the bottom of the connecting plate (72) is in contact with the top of the placing box (6), and the bottom of the connecting plate (72) is fixedly installed with the top of the filter plate (71).

5. The backwash structure for a quartz sand filter according to claim 4, characterized in that: The top of the placing box (6) is rotatably installed with a rotating rod (73), the top of the rotating rod (73) is fixedly installed with a rotating block (74), the top of the connecting plate (72) is provided with a rectangular groove (75), the top of the rotating block (74) penetrates through the top of the connecting plate (72), and the bottom of the rotating block (74) is in contact with the top of the connecting plate (72).

6. The backwash structure for a quartz sand filter according to claim 1, wherein: The rear side of the placing box (6) is communicated with a drain pipe (8), and the surface of the drain pipe (8) is communicated with a valve (9).

7. The backwash structure for a quartz sand filter according to claim 5, wherein: The top of the rotating block (74) is fixedly installed with a handle (10), and the handle (10) is used in cooperation with the rotating block (74). The top of the rotating block (74) is fixedly installed with a handle (10), and the handle (10) is used in cooperation with the rotating block (74).

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