Spiral-flow type primary filter for mine water pretreatment

Abstract

The utility model provides a spiral-flow type primary filter for mine water pretreatment, which belongs to the technical field of mine raw water filtering equipment and comprises a tank cover detachably arranged at the top of a filtering tank body, a filtering cylinder is fixedly arranged in the filtering tank body along the axial direction of the filtering tank body, and a water inlet pipeline is arranged in the middle of the filtering cylinder. A plurality of spiral material hanging belts are arranged at the bottom of the tank cover, a rotational flow device is arranged at the water outlet end of the water inlet pipeline, the bottom of the filtering tank body is communicated with a precipitation hopper, and the bottom of the precipitation hopper is communicated with a sludge discharge pipeline. Then the raw water is spirally thrown into the filter cartridge through the rotational flow device at the bottom of the water inlet pipeline, linear substances are collected through the spiral material hanging belt, flocculates enter the precipitation hopper through the filter cartridge and are discharged through the sludge discharge pipeline, so that the linear substances and large particles in the raw water can be efficiently filtered; therefore, the quality of the raw water entering the raw water tank is improved, and the cost of subsequent raw water filtration is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of mine raw water filtration equipment, specifically to a cyclone primary filter for mine water pretreatment. Background Technology

[0002] Mine water has a complex composition, often containing a large amount of suspended solids (such as silt, coal dust, and rock fragments), colloids, and small amounts of pollutants. Directly introducing it into subsequent treatment stages (such as deep purification and reuse systems) will clog equipment and affect treatment efficiency. Therefore, a pre-filter needs to be installed on the inlet pipe to separate large particulate impurities in the water and reduce the load on subsequent treatment processes.

[0003] In related technologies, the process of introducing coal mine wastewater into the raw water tank typically involves installing a primary filter on the inlet pipe. Large particles are then separated by the filter cartridge within the primary filter. However, mine wastewater contains not only a large number of large particles but also many filamentous materials such as hair, belt fibers, etc. If these are not effectively separated beforehand, both large particles and filamentous materials will enter the raw water tank. The existing primary filter has poor filtration efficiency, resulting in some filtered water containing filamentous materials entering the raw water tank, causing impurities to accumulate and increasing subsequent water treatment costs. To address these issues, a cyclone primary filter for mine water pretreatment is proposed. Utility Model Content

[0004] In view of this, the present invention provides a cyclone primary filter for mine water pretreatment. The present invention adds flocculant to the raw water in the inlet pipe through a flocculant dosing pipe, and then the raw water is spirally sprayed into the filter cylinder through a cyclone device at the bottom of the inlet pipe. Linear particles are collected by the spiral hanging belt, and large particles are gradually precipitated in the sedimentation hopper through the water passage. The flocculated sediment is then discharged through the sludge discharge valve. In this way, linear particles and large particles in the raw water can be filtered efficiently, thereby improving the water quality of the raw water entering the raw water tank and reducing the cost of subsequent raw water filtration.

[0005] To solve the above-mentioned technical problems, this utility model provides a cyclone primary filter for mine water pretreatment, including a detachable tank cover at the top of the filter tank, a support frame at the bottom of the filter tank, a filter cylinder fixedly installed along its axial direction inside the filter tank, an inlet pipe centrally located inside the filter cylinder, the inlet end of the inlet pipe passing through the tank wall of the filter tank, multiple spiral material hanging belts at the bottom of the tank cover, all spiral material hanging belts surrounding the inlet pipe, a cyclone device at the outlet end of the inlet pipe, a sedimentation hopper connected to the bottom of the filter tank, and a sludge discharge pipe connected to the bottom of the sedimentation hopper.

[0006] The upper end of the spiral material belt is equipped with an upper connecting block, which is used to connect the spiral material belt to the tank lid and the bottom of the tank lid. The lower end of the spiral material belt is equipped with a lower connecting block, which is used to connect the spiral material belt to the bottom of the filter cylinder and the bottom of the filter cylinder.

[0007] The filter cartridge has a hollow design and several water passage holes on its wall. These holes facilitate connection between the filter cartridge and the filter tank. The bottom of the filter cartridge also has multiple water passage holes, which facilitate connection between the filter cartridge and the sedimentation tank.

[0008] The vortex device includes a water distribution chamber connected to the outlet end of the inlet pipe. The water distribution chamber is used to connect the inlet pipe to various drainage channels. The water distribution chamber is a hollow circular body. Each of the four sides of the water distribution chamber is curved and connected to a drainage channel. The drainage channel is used to disperse the raw water in the inlet pipe into the filter cylinder, so that the large particles in the raw water can hit the cylinder wall and then fall into the sedimentation hopper by their own gravity. The outlet end of the drainage channel is designed clockwise around the water distribution chamber.

[0009] An outlet pipe is installed on the opposite side of the inlet end of the inlet pipe. The outlet pipe is used to allow the supernatant in the filter tank to flow to the raw water tank. The outlet pipe passes through the filter tank and enters the filter cylinder.

[0010] The inlet pipe is L-shaped, and the inlet end of the inlet pipe located outside the filter tank is connected to a flocculation dosing pipe. The flocculation dosing pipe is used to connect to the flocculation dosing device to add flocculant into the inlet pipe, thereby accelerating the flocculation of raw water particles in the inlet pipe.

[0011] The sludge discharge pipe is equipped with a sludge discharge valve, which is used to control the opening and closing of the sludge discharge pipe. The flocculation dosing pipe is equipped with a check valve, which is used to prevent the raw water in the inlet pipe from mixing with the chemical solution in the flocculation dosing pipe.

[0012] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0013] 1. Flocculant is added to the raw water in the inlet pipe through the flocculant dosing pipe. Then, the raw water is spirally sprayed into the filter cylinder through the vortex device at the bottom of the inlet pipe. Linear particles are collected by the spiral hanging material belt, and large particles are gradually settled in the sedimentation hopper through the water passage. The flocculated sediment is then discharged through the sludge discharge valve. This process can efficiently filter linear particles and large particles in the raw water, thereby improving the water quality of the raw water entering the raw water tank and reducing the cost of subsequent raw water filtration.

[0014] 2. The water distribution chamber is used to connect the inlet pipe to each drainage channel. The drainage channel is used to disperse the raw water in the inlet pipe into the filter cylinder, so that the large particles in the raw water can hit the cylinder wall and fall into the sedimentation hopper by their own gravity. The linear particles in the raw water are then attached to the spiral feed belt for collection.

[0015] 3. The check valve is used to prevent the raw water in the inlet pipe from mixing with the chemical solution in the flocculation dosing pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a front view structural diagram of the present utility model;

[0018] Figure 3 This is a front sectional view of the present invention;

[0019] Figure 4 This is a bottom sectional view of the present invention.

[0020] Explanation of reference numerals in the attached drawings: 100, Filter tank; 101, Tank cover; 102, Support frame; 103, Sedimentation hopper; 104, Water outlet pipe; 200, Filter cylinder; 201, Water inlet pipe; 202, Water passage hole; 203, Flocculation dosing pipe; 204, Check valve; 300, Spiral feed belt; 301, Upper connecting block; 302, Lower connecting block; 400, Swirl device; 401, Water distribution chamber; 402, Drainage channel; 500, Sludge discharge pipe; 501, Sludge discharge valve. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0022] like Figure 1-4As shown: This embodiment provides a cyclone primary filter for mine water pretreatment, including a detachable tank cover 101 on the top of a filter tank 100. The tank cover 101 is fixed to the top of the filter tank 100 via positioning blocks and bolts. A support frame 102 is provided at the bottom of the filter tank 100. The support frame 102 includes a support plate welded to the outer wall of the filter tank 100, and four feet at the bottom corners of the support plate. A filter cylinder 200 is fixedly installed axially inside the filter tank 100. Connecting rings are provided at both the upper and lower ends of the outer wall of the filter cylinder 200 to connect and fix the filter cylinder 200 to the inner wall of the filter tank 100. A water inlet pipe 201 is centrally located inside the filter cylinder 200. The water inlet pipe 201 passes through the pipe wall of the filter tank 100 and the cylinder wall of the filter cylinder 200, and then extends to the bottom of the filter cylinder 200 via elbows and straight pipes. The water inlet end of the water inlet pipe 201 passes through the tank wall of the filter tank 100. The bottom of the tank lid 101 is equipped with multiple spiral material hanging belts 300. Each spiral material hanging belt 300 is made of spiral-shaped stainless steel and surrounds the water inlet pipe 201. A water distribution chamber 401 at the outlet end of the water inlet pipe 201 fits snugly against the bottom of the filter cylinder 200. A vortex device 400 is installed at the outlet end of the water inlet pipe 201 to throw the raw water in the water inlet pipe 201 into the filter cylinder 200, thereby achieving material flow through the spiral material hanging belts. The filter tank 100 is equipped with a sedimentation hopper 103 at the bottom, which is made of stainless steel and welded to the bottom of the filter tank 100. A sludge discharge pipe 500 is also connected to the bottom of the sedimentation hopper 103 and welded to the sedimentation hopper 103. A sludge pump is installed at the outlet of the sludge discharge pipe 500 to extract the flocculated sediment in the sedimentation hopper 103. The sediment is extracted when it exceeds the bottom of the filter cylinder 200.

[0023] In use, flocculant is added to the raw water in the inlet pipe 201 through the flocculant dosing pipe 203, allowing the raw water to flocculate within the inlet pipe 201. The dosed raw water is then spirally sprayed into the filter cylinder 200 through the water distribution chamber 401 at the bottom of the inlet pipe 201. The spiral hanging belt 300 around the inlet pipe 201 traps linear particles in the raw water, thus collecting them. Large particles gradually settle in the sedimentation hopper 103 through the water passage 202. Finally, the flocculated sediment is discharged by opening the sludge discharge valve 501. This process effectively filters linear and large particles in the raw water, improving the water quality entering the raw water tank and reducing the cost of subsequent raw water filtration.

[0024] This embodiment provides a cyclone primary filter for mine water pretreatment.

[0025] like Figure 3 ,4 As shown: The upper end of the spiral material hanging belt 300 is provided with an upper connecting block 301, which is used to connect the spiral material hanging belt 300 to the can lid 101. The upper connecting block 301 and the bottom of the can lid 101 can be fixed by bolts or welded. The lower end of the spiral material hanging belt 300 is provided with a lower connecting block 302, which is used to connect the spiral material hanging belt 300 to the bottom of the filter cylinder 200. The lower connecting block 302 and the bottom of the filter cylinder 200 can be fixed by bolts or welded. The filter cylinder 200 can be made of stainless steel. The upper end of the spiral material hanging belt 300 can be welded to the upper connecting block 301. The lower end of the spiral material hanging belt 300 is provided with a pin that is plugged into a slot in the lower connecting block for a pull-out fixation.

[0026] Its effect is as follows: the upper connecting block 301 is used to connect the spiral material hanging belt 300 to the can cover 101. The lower end of the spiral material hanging belt 300 is provided with a pin and a slot in the lower connecting block for plug-in fixation. Thus, when the can cover 101 is separated from the filter tank 100, the spiral material hanging belt 300 can be pulled out simultaneously, thereby cleaning the thread-like objects on the spiral material hanging belt 300. After cleaning, it can continue to be used, thereby improving the service life of the component and reducing the cost of use.

[0027] like Figure 3 As shown: The filter cylinder 200 has a hollow design. Several water passage holes 202 are provided on the cylinder wall of the filter cylinder 200. The water passage holes 202 facilitate the connection between the filter cylinder 200 and the filter tank 100. Multiple water passage holes 202 are provided at the bottom of the filter cylinder 200, which also facilitate the connection between the filter cylinder 200 and the sedimentation tank 103.

[0028] Its effect is that the water passage 202 facilitates the connection between the filter cylinder 200 and the filter tank 100, and the water passage 202 also facilitates the connection between the filter cylinder 200 and the sedimentation tank 103.

[0029] like Figure 3 , 4 As shown: The vortex device 400 includes a water distribution chamber 401 connected to the outlet end of the water inlet pipe 201. The water distribution chamber 401 and the water inlet pipe 201 can be welded together. The water distribution chamber 401 is used to connect the water inlet pipe 201 with each drainage channel 402. The water distribution chamber 401 is a hollow circular body. Each of the four sides of the water distribution chamber 401 is curved and connected to a drainage channel 402. The drainage channels are distributed at 90° intervals. Preferably, there are 4 drainage channels 402. The drainage channels 402 are welded together with the water distribution chamber 401. The drainage channels 402 are used to disperse the raw water in the water inlet pipe 201 into the filter cylinder 200, so that the large particles in the raw water hit the cylinder wall and then fall into the sedimentation hopper 103 by their own gravity. The outlet end of the drainage channel 402 is designed to be clockwise around the water distribution chamber 401.

[0030] Its effect is as follows: the water distribution tank 401 is used to connect the water inlet pipe 201 with each drainage channel 402. The drainage channel 402 is used to disperse the raw water in the water inlet pipe 201 into the filter cylinder 200, so that the large particles in the raw water hit the cylinder wall and then fall into the sedimentation hopper 103 by their own gravity, so that the linear objects in the raw water are attached to the spiral feed belt 300, and then the linear objects are collected.

[0031] like Figure 1 , 2 As shown in Figure 3: An outlet pipe 104 is provided on the opposite side of the inlet end of the inlet pipe 201. The outlet pipe 104 passes through the pipe wall of the filter tank 100 and the cylinder wall of the filter cylinder 200, and is welded and fixed at the point of passage. A connecting flange is provided at the outlet end of the outlet pipe 104. The outlet pipe 104 is used to allow the supernatant in the filter tank 100 to flow to the raw water tank. The outlet pipe 104 passes through the filter tank 100 and enters the filter cylinder 200.

[0032] Its effect is as follows: the water outlet pipe 104 is used to allow the supernatant in the filter tank 100 to flow to the raw water tank, and the water outlet pipe 104 passes through the filter tank 100 and enters the filter cylinder 200.

[0033] like Figure 1 , 2 As shown in Figure 3: The inlet pipe 201 is L-shaped. The inlet end of the inlet pipe 201 located outside the filter tank 100 is connected to a flocculation dosing pipe 203. The flocculation dosing pipe 203 can be welded or heat-fused according to the material of the inlet pipe 201. The inlet end of the flocculation dosing pipe 203 is equipped with a flocculant supply device. The flocculation dosing pipe 203 is used to connect the flocculation dosing device to add flocculant into the inlet pipe 201, thereby accelerating the flocculation of raw water particles in the inlet pipe 201.

[0034] Its effect is as follows: the flocculation dosing pipe 203 is used to connect the flocculation dosing device to add flocculant into the water inlet pipe 201, thereby accelerating the flocculation of raw water particles in the water inlet pipe 201.

[0035] like Figure 1 , 2 As shown in Figure 3: A sludge discharge valve 501 is installed on the sludge discharge pipe 500. The sludge discharge valve 501 is fixed to the sludge discharge pipe 500 by a flange connection. The sludge discharge valve 501 can be electric. A sewage pump set is installed at the liquid outlet end of the sludge discharge pipe 500 to improve the sewage pumping speed. The sludge discharge valve 501 is used to control the opening and closing of the sludge discharge pipe 500. A check valve 204 is installed on the flocculation dosing pipe 203. The check valve 204 is fixed to the flocculation dosing pipe 203 by heat fusion or flange sealing. The check valve 204 is used to prevent the raw water in the inlet pipe 201 from crossing with the chemical solution in the flocculation dosing pipe 203.

[0036] Its effects are as follows: the sludge discharge valve 501 is used to control the opening and closing of the sludge discharge pipe 500 to prevent the overflow of dirt in the sedimentation hopper 103, and the check valve 204 is used to prevent the raw water in the water inlet pipe 201 from crossing with the chemical solution in the flocculation dosing pipe 203.

[0037] Working principle: Flocculant is added to the raw water in the inlet pipe 201 through the flocculation dosing pipe 203, allowing the raw water to flocculate within the inlet pipe 201. The dosed raw water is then spirally sprayed into the filter cylinder 200 through the water distribution chamber 401 at the bottom of the inlet pipe 201. The spiral hanging belt 300 around the inlet pipe 201 traps linear particles in the raw water, thus collecting them. As the water level in the filter cylinder 200 rises, the supernatant in the filter cylinder 200 is discharged into the raw water tank through the outlet pipe 104. Large particles gradually settle in the sedimentation hopper 103 through the water passage 202. Finally, the flocculated sediment is discharged by opening the sludge discharge valve 501. This process effectively filters linear and large particles in the raw water, improving the water quality entering the raw water tank and reducing the cost of subsequent raw water filtration.

[0038] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0039] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A cyclone type primary filter for mine water pretreatment, comprising a filter tank body (100) and a detachable tank cover (101) arranged on the top of the filter tank body (100), and a support frame (102) arranged on the bottom of the filter tank body (100), characterized in that: The filter tank (100) is fixedly provided with a filter cylinder (200) along its axial direction, the filter cylinder (200) is centrally provided with a water inlet pipe (201), the water inlet end of the water inlet pipe (201) penetrates the tank wall of the filter tank (100), the bottom of the tank cover (101) is provided with a plurality of spiral material hanging belts (300), the spiral material hanging belts (300) are all arranged around the water inlet pipe (201), the water outlet end of the water inlet pipe (201) is provided with a cyclone device (400), the bottom of the filter tank (100) is communicatively provided with a sedimentation hopper (103), and the bottom of the sedimentation hopper (103) is communicatively provided with a sludge discharge pipe (500).

2. A cyclonic primary filter for mine water pre-treatment as claimed in claim 1, characterised in that: The upper end of the spiral material hanging belt (300) is provided with an upper connecting block (301), the upper connecting block (301) is connected with the bottom of the tank cover (101), and the lower end of the spiral material hanging belt (300) is provided with a lower connecting block (302), the lower connecting block (302) is connected with the inner bottom of the filter cylinder (200).

3. A cyclonic primary filter for mine water pre-treatment as claimed in claim 2, characterised in that: The filter cylinder (200) is designed as a hollow structure, a plurality of water passing holes (202) are arranged on the cylinder wall of the filter cylinder (200), and the bottom of the filter cylinder (200) is provided with a plurality of water passing holes (202).

4. A cyclonic primary filter for mine water pre-treatment as claimed in claim 3, characterised in that: The cyclone device (400) comprises a water distribution bin (401) connected with the water outlet end of the water inlet pipe (201), the water distribution bin (401) is designed as a hollow circular body, and the periphery of the water distribution bin (401) is curvedly and communicatively provided with a plurality of drainage channels (402), and the water outlet ends of the drainage channels (402) are designed to surround the periphery of the water distribution bin (401) in a clockwise direction.

5. A cyclonic primary filter for mine water pre-treatment as claimed in claim 4, characterised in that: The opposite side of the water inlet end of the water inlet pipe (201) is provided with a water outlet pipe (104), and the water outlet pipe (104) penetrates the filter tank (100) and enters the filter cylinder (200).

6. A cyclonic primary filter for mine water pre-treatment as claimed in claim 5, characterised in that: The water inlet pipe (201) is designed as an L shape, and the water inlet end of the water inlet pipe (201) located outside the filter tank (100) is communicatively provided with a flocculation dosing pipe (203).

7. A cyclonic primary filter for mine water pre-treatment as claimed in claim 6, characterised in that: The sludge discharge pipe (500) is provided with a sludge discharge valve (501), and the flocculation dosing pipe (203) is provided with a check valve (204).

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