Sand filtering device

Abstract

The utility model relates to a sand filtering device which is characterized by comprising a pretreatment mechanism and a sand filtering mechanism, the pretreatment mechanism comprises a solid impurity remover arranged in the sand filter main body, a buffer water inlet cover is arranged at a water inlet of the solid impurity remover, the bottom of the solid impurity remover is communicated with a feed port of an auger output machine, and a discharge port of the auger output machine extends to the outside of the sand filter main body. According to the mine sewage treatment device, the solid impurity remover, the auger output machine and other components are arranged, and the solid impurity remover and the auger output machine are matched with each other, so that mine sewage entering the solid impurity remover sequentially enters the shell and then impacts the bottom wall of the shell; at the moment, the impacted sewage flows along the water outlet cavity and is discharged from the water outlet, and solid impurities in the sewage stay below the first partition plate and the second partition plate and are conveyed to the outside of the sand filter main body under the action of the auger output machine.

Description

Technical Field

[0001] This utility model relates to the field of sand filter technology, specifically to a sand filtration device. Background Technology

[0002] A sand filter is a device used for water purification. It mainly uses the physical filtration effect of filter media such as quartz sand to remove suspended solids, colloids, bacteria, and larger particulate impurities from the water, thereby achieving the purpose of purifying the water quality.

[0003] Sand filters are widely used, especially in the treatment of wastewater containing a large number of large particles, such as mine wastewater. They are very effective in removing large particles from mine wastewater. However, since there are more large particles in mine wastewater than in other types of wastewater, the cleaning cycle of the sand filter media is greatly shortened. Therefore, a sand filtration device is proposed to solve the above-mentioned problems. Utility Model Content

[0004] Based on the above description, this utility model provides a sand filtration device to solve the problem of short filter media cleaning cycle when sand filters treat wastewater containing a large number of large particulate impurities, such as mine wastewater.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a sand filter device, comprising: a pretreatment mechanism;

[0006] The pretreatment mechanism includes a solid impurity remover installed inside the main body of the sand filter tank. The inlet of the solid impurity remover is equipped with a buffer inlet cover, and its bottom is connected to the feed inlet of the auger output machine. The discharge outlet of the auger output machine extends to the outside of the main body of the sand filter tank.

[0007] The solid impurity remover includes a housing, inside which a first partition and a second partition are provided. The sides of the first and second partitions that are opposite to each other form a water outlet cavity with the inner wall of the housing. The side of the housing is provided with a water outlet that communicates with the water outlet cavity. The lower surfaces of the first and second partitions are separated from the bottom wall inside the housing.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, the top of the outer shell is open, and a connecting funnel is provided at its bottom, which is in communication with the outer shell.

[0010] Furthermore, a plurality of shielding crossbars are provided between the two side walls of the outer shell, the shielding crossbars being located between the first partition and the second partition, and an mounting plate is provided on the outer surface of the outer shell, the mounting plate being connected to the main body of the sand filter tank.

[0011] Furthermore, the bottom of the connecting funnel is provided with an auger output machine extending to the outside of the main body of the sand filter tank, and the outlet of the auger output machine is located above the water outlet.

[0012] Furthermore, the second partition includes a vertical plate, which is disposed inside the outer shell and is symmetrically distributed with the first partition. The top of the vertical plate is provided with a baffle that is connected to the inner wall of the outer shell.

[0013] Furthermore, the buffer water inlet cover includes a water inlet pipe disposed on the upper part of the outer shell, and a hollow cover extending into the interior of the outer shell is disposed at the bottom of the water inlet pipe, and the water inlet pipe is interconnected with the outer shell through the hollow cover.

[0014] Furthermore, a limiting ring is fitted around the outside of the hollow cover, and the limiting ring is in contact with the upper surface of the outer shell.

[0015] Furthermore, the hollow cover has multiple water guide plates inside, which are staggered. The upper surface of each water guide plate has water-permeable holes and is a downward-sloping surface.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0017] 1. This utility model, by setting up components such as a solid impurity remover and an auger output machine, and through the cooperative relationship between the solid impurity remover and the auger output machine, allows the mine wastewater entering the solid impurity remover to enter the outer shell in sequence and impact the bottom wall of the outer shell. At this time, the impacted wastewater flows along the outlet chamber and is discharged from the outlet, while the solid impurities in the wastewater remain below the first and second partitions. These impurities are transported to the outside of the sand filter body under the action of the auger output machine.

[0018] 2. By setting up a buffer inlet cover and a shielding crossbar, the flow rate of the mine wastewater is slowed down, which reduces the flow rate of the mine wastewater flowing into the solid impurity remover. This avoids the situation where the mine wastewater collides with the bottom wall inside the shell and carries away too many solid impurities, so that the solid impurities in the wastewater discharged from the outlet are reduced as much as possible. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a sand filter device provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the pretreatment mechanism in an embodiment of the present invention;

[0021] Figure 3This is a schematic diagram of the connection structure between the solid impurity remover and the buffer water inlet cover in an embodiment of this utility model;

[0022] Figure 4 for Figure 3 Another structural diagram from another perspective;

[0023] Figure 5 This is a schematic diagram of the solid impurity remover in an embodiment of the present invention;

[0024] Figure 6 for Figure 5 Another structural diagram from another perspective;

[0025] Figure 7 This is a schematic diagram of the structure of the buffer water inlet cover in an embodiment of the present invention;

[0026] Figure 8 for Figure 7 Another structural diagram from another perspective;

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Sand filter body; 2. Solid impurity remover; 21. Outer shell; 22. Connecting funnel; 23. First partition; 24. Second partition; 241. Vertical plate; 242. Baffle; 25. Outlet chamber; 26. Shielding crossbar; 27. Outlet; 28. Mounting plate; 3. Buffer inlet cover; 31. Hollow cover; 32. Limiting ring; 33. Water guide plate; 34. Water permeable hole; 35. Inlet pipe; 4. Screw conveyor. Detailed Implementation

[0029] To facilitate understanding of this application, a more complete description will be provided below with reference to the accompanying drawings, which illustrate embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this application will be thorough and complete.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0031] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0032] Please see Figures 1-6 A sand filtration device, comprising: a pretreatment mechanism;

[0033] The pretreatment mechanism includes a solid impurity remover 2 installed inside the sand filter body 1. The inlet of the solid impurity remover 2 is provided with a buffer inlet cover 3, and its bottom is connected to the feed inlet of the auger output machine 4. The discharge outlet of the auger output machine 4 extends to the outside of the sand filter body 1.

[0034] The solid impurity remover 2 includes a housing 21. Inside the housing 21, a first partition 23 and a second partition 24 are provided. The sides of the first partition 23 and the second partition 24 that are opposite to each other form a water outlet cavity 25 with the inner wall of the housing 21. The side of the housing 21 is provided with a water outlet 27 that communicates with the water outlet cavity 25. The lower surfaces of the first partition 23 and the second partition 24 are separated from the bottom wall inside the housing 21.

[0035] The top of the outer shell 21 is open, and a connecting funnel 22 is provided at its bottom. The connecting funnel 22 is connected to the outer shell 21. A plurality of blocking crossbars 26 are provided between the two side walls of the outer shell 21. The blocking crossbars 26 are located between the first partition 23 and the second partition 24. An mounting plate 28 is provided on the outer surface of the outer shell 21. The mounting plate 28 is connected to the sand filter body 1.

[0036] The bottom of the connecting funnel 22 is provided with an auger output machine 4 extending to the outside of the sand filter body 1. The outlet of the auger output machine 4 is located above the outlet 27. The second partition 24 includes a vertical plate 241. The vertical plate 241 is disposed inside the outer shell 21 and is symmetrically distributed with the first partition 23. The top of the vertical plate 241 is provided with a baffle 242 connected to the inner wall of the outer shell 21.

[0037] Based on the above, the arrangement of the first partition 23 and the second partition 24 forms a water outlet cavity 25 inside the outer shell 21. When sewage enters the interior of the outer shell 21, it preferentially flows through the space between the two partitions. The sewage then enters the space below the two partitions of the outer shell 21. After the sewage collides with the bottom wall of the outer shell 21, its speed drops sharply. After continuously entering the interior of the outer shell 21, the sewage moves upward along the first partition 23 and the second partition 24 to the interior of the water outlet cavity 25 and is discharged from the outlet 27.

[0038] During the above process, when the water flow hits the bottom wall inside the outer shell 21, the water flow velocity drops sharply and the flow direction changes. That is, the water flows upward along the two baffles to the inside of the outlet chamber 25. At this time, large solid particles in the sewage remain at the bottom wall of the outer shell 21 under the action of gravity, while the water flows out normally from the outlet 27. Under the action of gravity, the large solid particles enter the inside of the connecting funnel 22. By energizing the auger output machine 4, the large solid particles are transported to a higher position and discharged from the outlet.

[0039] like Figures 2-4 , Figure 7 as well as Figure 8 As shown, the buffer water inlet cover 3 includes a water inlet pipe 35 disposed above the outer shell 21. The bottom of the water inlet pipe 35 is provided with a hollow cover 31 extending into the interior of the outer shell 21. The water inlet pipe 35 is interconnected with the outer shell 21 through the hollow cover 31. A limiting ring 32 is sleeved on the outside of the hollow cover 31. The limiting ring 32 is in contact with the upper surface of the outer shell 21.

[0040] The hollow cover 31 has a plurality of water guide plates 33 inside, which are staggered. The upper surface of the water guide plate 33 is provided with water permeable holes 34, and the upper surface of the water guide plate 33 is an inclined surface that slopes downward.

[0041] Based on the above, the inlet pipe 35 is connected to the water pump through the pipeline. The water pump drives the mine sewage into the interior of the buffer inlet cover 3. The sewage first comes into contact with the guide plate 33 and flows along the inclined surface of the guide plate 33, which achieves the effect of slowing down the flow rate of sewage when it enters the interior of the outer shell 21, thereby avoiding the situation where large solid particles move upward after the water flow direction changes.

[0042] In summary, this sand filtration device, by incorporating a pretreatment mechanism into the sand filter tank, allows large solid particles to be removed before the mine wastewater enters the sand filter tank, reducing the filtration burden on the filter media and extending the cleaning cycle of the filter media.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 sand filtration device, characterized in that, include: Pre-processing unit; The pretreatment mechanism includes a solid impurity remover (2) installed inside the sand filter body (1). The solid impurity remover (2) is provided with a buffer inlet cover (3) at its inlet and its bottom is connected to the feed inlet of the screw conveyor (4). The discharge outlet of the screw conveyor (4) extends to the outside of the sand filter body (1). The solid impurity remover (2) includes a shell (21), inside which a first partition (23) and a second partition (24) are provided. The side of the first partition (23) and the second partition (24) facing away from each other forms a water outlet cavity (25) with the inner wall of the shell (21). The side of the shell (21) is provided with a water outlet (27) that communicates with the water outlet cavity (25). The lower surfaces of the first partition (23) and the second partition (24) are separated from the bottom wall inside the shell (21).

2. The sand filtration device according to claim 1, characterized in that, The top of the outer shell (21) is open, and a connecting funnel (22) is provided at its bottom, which is connected to the outer shell (21).

3. The sand filter device according to claim 2, characterized in that, Multiple shielding crossbars (26) are provided between the two side walls of the outer shell (21). The shielding crossbars (26) are located between the first partition (23) and the second partition (24). An installation plate (28) is provided on the outer surface of the outer shell (21). The installation plate (28) is connected to the main body (1) of the sand filter tank.

4. The sand filter device according to claim 2, characterized in that, The bottom of the connecting funnel (22) is provided with an auger output machine (4) extending to the outside of the main body (1) of the sand filter tank, and the outlet of the auger output machine (4) is located above the outlet (27).

5. The sand filter device according to claim 3, characterized in that, The second partition (24) includes a vertical plate (241), which is disposed inside the outer shell (21) and is symmetrically distributed with the first partition (23). The top of the vertical plate (241) is provided with a baffle (242) connected to the inner wall of the outer shell (21).

6. The sand filtration device according to claim 1, characterized in that, The buffer water inlet cover (3) includes a water inlet pipe (35) disposed above the outer shell (21). The bottom of the water inlet pipe (35) is provided with a hollow cover (31) extending into the interior of the outer shell (21). The water inlet pipe (35) is interconnected with the outer shell (21) through the hollow cover (31).

7. The sand filter device according to claim 6, characterized in that, A limiting ring (32) is fitted around the outside of the hollow cover (31), and the limiting ring (32) is in contact with the upper surface of the outer shell (21).

8. The sand filter device according to claim 7, characterized in that, The hollow cover (31) has multiple water guide plates (33) inside, which are staggered. The upper surface of the water guide plate (33) is provided with water permeable holes (34), and the upper surface of the water guide plate (33) is an inclined surface that slopes downward.

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