Valveless filter for mine water treatment station

Abstract

The utility model relates to mine water treatment technical field, concretely relates to a mine water treatment station valveless filter, mainly solves the technical problem that the backwash effect of valveless filter is poor. The valveless filter of this no includes water inlet subassembly, filter assembly, backwash subassembly and blow material subassembly, and filter assembly includes filter box and fresh water tank, and backwash subassembly includes backwash upper water pipe, backwash lower water pipe, backwash auxiliary pipe, exhaust pipe, backwash destruction pipe and drainage sink, and blow material subassembly includes fan, air pipe and cut -off valve. The valveless filter of this no adds blow material subassembly, when backwashing, opens cut -off valve and starts fan, and fan blows into airflow to the filter material in filter box through the air blowing hole of air pipe, and airflow can scatter the impurity such as particle deposited on filter material, and can be discharged with backwash water flow, so as to be able to improve the effect of backwashing greatly, avoid the hardening caused by filter material impurity deposition, guarantee filter material service life.

Description

Technical Field

[0001] This utility model relates to the field of mine water treatment technology, and in particular to a valveless filter for a mine water treatment station. Background Technology

[0002] Valveless filters are water treatment devices that use the siphon principle for automatic backwashing. Because they do not require valves or backwash pumps and have advantages such as simple and compact structure, they are widely used in fields such as removing suspended impurities from industrial wastewater.

[0003] However, existing valveless filters are limited by the amount and pressure of backwash water, which makes it difficult to clean impurities thoroughly and results in poor backwashing effect, especially at the end of the backwashing process. After such a long period of operation, a lot of impurities accumulate in the filter media, which may even cause the filter media to clump together, seriously reducing the service life of the filter media.

[0004] Therefore, there is an urgent need for a valveless filter with good backwashing performance. Utility Model Content

[0005] To overcome the technical shortcomings of existing valveless filters, which have poor backwashing effects, this utility model provides a valveless filter for mine water treatment plants.

[0006] The valveless filter for mine water treatment stations provided by this utility model includes: A water inlet assembly, comprising a water inlet tank and a water inlet pipe connected in sequence; A filtration assembly includes a filter box and a clean water tank. The filter box is placed inside the clean water tank and contains filter media. The top of the filter box is connected to the outlet end of the inlet pipe, and the bottom of the filter box is connected to the inside of the clean water tank. The top of the clean water tank is provided with an outlet pipe. A backwash assembly includes a backwash inlet pipe, a backwash outlet pipe, a backwash auxiliary pipe, an exhaust pipe, a backwash breaker pipe, and a drainage tank. The bottom end of the backwash inlet pipe is connected to the top of the filter box. The top end of the backwash outlet pipe is connected to the outlet end of the backwash inlet pipe, and the bottom end is placed in the drainage tank. The top end of the backwash auxiliary pipe is connected to the backwash inlet pipe, and the bottom end is placed in the drainage tank. The two ends of the exhaust pipe are respectively connected to the top of the backwash inlet pipe and the top of the backwash auxiliary pipe. One end of the backwash breaker pipe is placed in the clean water tank, and the other end is connected to the top of the backwash outlet pipe. The blowing assembly includes a sealed air duct that penetrates the wall of the clear water tank and is inserted into the filter media of the filter box. The end of the air duct located outside the clear water tank is connected to a blower, and the section of the air duct between the blower and the clear water tank is provided with a shut-off valve. The section of the air duct located in the filter box has multiple blowing holes.

[0007] Optionally, the duct section placed in the filter box includes a main duct section and a branch duct section. The main duct section is arranged horizontally, and the branch duct section is perpendicular to the main duct section. The air blowing holes are opened on the walls of both the main duct section and the branch duct section.

[0008] Optionally, the shut-off valve is a ball valve.

[0009] Optionally, a water distribution baffle is provided on the inner top of the filter box, and the water distribution baffle is located directly below the water inlet of the filter box.

[0010] Optionally, the bottom end of the backflushing drain pipe is equipped with a flow regulating valve.

[0011] The technical solution provided by this utility model has the following advantages compared with the prior art: The valveless filter for mine water treatment plants provided by this utility model is equipped with a material blowing component. During backwashing, the shut-off valve is opened and the blower is started. The blower blows air into the filter media in the filter box through the air blowing hole of the air duct. The airflow can disperse the particles and other impurities deposited on the filter media and discharge them with the backwash water flow. This can greatly improve the backwashing effect, avoid the deposition of impurities in the filter media leading to caking, and ensure the service life of the filter media. Attached Figure Description

[0012] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram showing the structure of the valveless filter in the mine water treatment station according to an embodiment of the present invention.

[0015] In the picture: 100. Water inlet assembly; 110. Water inlet tank; 120. Water inlet pipe; 200. Filter assembly; 210. Filter box; 211. Water distribution baffle; 220. Clean water tank; 230. Filter media; 240. Water outlet pipe; 300. Backwash assembly; 310. Backwash inlet pipe; 320. Backwash outlet pipe; 321. Flow regulating valve; 330. Backwash auxiliary pipe; 340. Exhaust pipe; 350. Backwash rupture pipe; 360. Drainage tank; 400. Material blowing assembly; 410. Air duct; 411. Main pipe section; 412. Branch pipe section; 420. Fan; 430. Shut-off valve; 440. Air blowing port. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0017] In this description, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0019] The following is combined Figure 1 The specific embodiments of this utility model will be described in detail below.

[0020] This embodiment provides a valveless filter for a mine water treatment station, including an inlet water assembly 100, a filter assembly 200, a backwashing assembly 300, and a material blowing assembly 400.

[0021] The water inlet assembly 100 includes a water inlet tank 110 and a water inlet pipe 120 connected in sequence.

[0022] It is easy to understand that the water inlet tank 110 is used to store mine water.

[0023] The filter assembly 200 includes a filter box 210 and a clean water tank 220. The filter box 210 is placed inside the clean water tank 220 and contains filter media 230. The top of the filter box 210 is connected to the outlet end of the inlet pipe 120, and the bottom of the filter box 210 is connected to the inside of the clean water tank 220. The top of the clean water tank 220 is provided with an outlet pipe 240.

[0024] It should be noted that a water outlet channel should be provided between the bottom of the filter box 210 and the clean water tank 220 so that the mine water filtered by the filter media 230 can be discharged from the bottom of the filter box 210, thereby ensuring that the water discharged from the filter box 210 has been filtered by the filter media 230, thus ensuring the filtration effect.

[0025] Specifically, the filter media 230 can be made of materials such as large-particle sand and pebbles, which can effectively remove suspended solids and other impurities from mine water.

[0026] Furthermore, a water distribution baffle 211 is provided on the inner top of the filter box 210, and the water distribution baffle 211 is located directly below the water inlet of the filter box 210. When the mine water enters the filter box 210 from the water inlet, it first passes through the water distribution baffle 211 to make the water flow distribution more uniform, thereby ensuring the filtration effect.

[0027] The backwash assembly 300 includes a backwash inlet pipe 310, a backwash outlet pipe 320, a backwash auxiliary pipe 330, an exhaust pipe 340, a backwash breaker pipe 350, and a drainage trough 360. The bottom end of the backwash inlet pipe 310 is connected to the top of the filter box 210. The top end of the backwash outlet pipe 320 is connected to the outlet end of the backwash inlet pipe 310, and the bottom end is placed in the drainage trough 360. The top end of the backwash auxiliary pipe 330 is connected to the backwash inlet pipe 310, and the bottom end is placed in the drainage trough 360. The two ends of the exhaust pipe 340 are respectively connected to the top of the backwash inlet pipe 310 and the top of the backwash auxiliary pipe 330. One end of the backwash breaker pipe 350 is placed in the clean water tank 220, and the other end is connected to the top of the backwash outlet pipe 320.

[0028] It is easy to understand that the bottom end of the backwash water pipe 310 and the outlet end of the inlet water pipe 120 are both connected to the top of the filter box 210, and the three together form a three-way structure.

[0029] Furthermore, a flow regulating valve 321 is provided at the bottom of the backwash drain pipe 320. The flow regulating valve 321 can be used to adjust the flow rate of the backwash water as needed to meet actual requirements.

[0030] The blowing assembly 400 includes a duct 410 that seals through the wall of the clean water tank 220 and is inserted into the filter media 230 of the filter box 210. The end of the duct 410 located outside the clean water tank 220 is connected to a blower 420. The section of the duct 410 located between the blower 420 and the clean water tank 220 is equipped with a shut-off valve 430. The section of the duct 410 located in the filter box 210 has multiple blowing holes.

[0031] Specifically, the 410 duct is made of galvanized iron pipe, which has excellent corrosion resistance as well as high strength and pressure resistance.

[0032] Specifically, the duct 410 placed in the filter box 210 includes a main duct section 411 and a branch duct section 412. The main duct section 411 is arranged horizontally, and the branch duct section 412 is perpendicular to the main duct section 411. Both the main duct section 411 and the branch duct section 412 have air blowing holes. Through the air blowing holes of the main duct section 411 and the branch duct section 412, airflows in different directions can be blown into the filter media 230, which is more conducive to dispersing the impurities deposited on the filter media 230, thereby ensuring the backwashing effect.

[0033] Specifically, the shut-off valve 430 is a ball valve, which has advantages such as easy operation, low flow resistance, and good sealing performance. Of course, a gate valve, butterfly valve, or other types of shut-off valve 430 can also be selected.

[0034] It is easy to understand that the seal between the air duct 410 and the wall of the clean water tank 220 can be achieved by sealing rings or other common means.

[0035] It should be noted that, in order to ensure the filtration effect, the walls of the air duct 410 and the filter box 210 must also be sealed to prevent the mine water in the filter box 210 from reaching the clean water tank 220 before it has been fully filtered.

[0036] It should be noted that, in order to prevent the filter material 230 from entering the air duct 410 and causing blockage, the end of the air duct 410 can be sealed, and airflow can be blown out only through the relatively small air blowing hole 440.

[0037] The working principle of the valveless filter in the mine water treatment plant of this embodiment is as follows: Water in the inlet tank 110 reaches the top inlet of the filter box 210 through the inlet pipe 120. After passing through the water distribution baffle 211, the water flows evenly onto the filter media 230. Then, after being filtered by the filter media 230, the water is discharged from the bottom of the filter box 210 into the clear water tank 220. As the amount of filtered water increases, the water level in the clear water tank 220 gradually rises. When the water level reaches the outlet pipe 240, the filtered water begins to be discharged through the outlet pipe 240.

[0038] Because filter media 230 intercepts suspended solids and other impurities, its resistance to mine water increases with filtration time, and the water level above filter media 230 gradually rises. When the water level reaches the inlet of backwash auxiliary pipe 330, the water flows down along it under gravity. The falling water in backwash auxiliary pipe 330 creates negative pressure, which draws air out of backwash drain pipe 320 through exhaust pipe 340. The negative pressure in backwash drain pipe 320 gradually increases, and a higher and higher water column forms. When the water column merges with the backwash water, backwash drain pipe 320 is filled with water, and the siphon effect begins. Water in clear water tank 220 enters filter box 210 from the bottom under the siphon effect. 10. After passing through the filter media 230 in reverse, the water flows sequentially through the backwash inlet pipe 310 and the backwash outlet pipe 320 to the drainage tank 360, and the water level in the clean water tank 220 gradually decreases. At the same time, the operator opens the shut-off valve 430 and starts the blower 420. The blower 420 blows air into the filter media 230 in the filter box 210 through the air outlet of the air duct 410. The airflow can disperse the particles and other impurities deposited on the filter media 230 and discharge them with the backwash water flow, thereby greatly improving the backwashing effect. When the water level in the clean water tank 220 drops to the bottom of the backwash breaking pipe 350, outside air enters the backwash outlet pipe 320 and the backwash auxiliary pipe 330 through the backwash breaking pipe 350, thereby breaking the siphon phenomenon and stopping the backwashing.

[0039] The above are merely specific embodiments of this utility model, enabling those skilled in the art to understand or implement this utility model. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A valveless filter for a mine water treatment station, characterized in that, include: The water inlet assembly (100) includes a water inlet tank (110) and a water inlet pipe (120) connected in sequence. A filter assembly (200) includes a filter box (210) and a clean water tank (220). The filter box (210) is placed inside the clean water tank (220) and contains filter media (230). The top of the filter box (210) is connected to the outlet end of the inlet pipe (120), and the bottom of the filter box (210) is connected to the inside of the clean water tank (220). The top of the clean water tank (220) is provided with an outlet pipe (240). The backwash assembly (300) includes a backwash inlet pipe (310), a backwash outlet pipe (320), a backwash auxiliary pipe (330), an exhaust pipe (340), a backwash break pipe (350), and a drain trough (360). The bottom end of the backwash inlet pipe (310) is connected to the top of the filter box (210), and the top end of the backwash outlet pipe (320) is connected to the outlet end of the backwash inlet pipe (310), with the bottom end positioned at the bottom of the filter box (210). Inside the drainage tank (360), the top end of the backwash auxiliary pipe (330) is connected to the backwash water supply pipe (310) and the bottom end is placed inside the drainage tank (360). The two ends of the exhaust pipe (340) are respectively connected to the top of the backwash water supply pipe (310) and the top of the backwash auxiliary pipe (330). One end of the backwash breaking pipe (350) is placed inside the clean water tank (220) and the other end is connected to the top of the backwash drain pipe (320). The blowing assembly (400) includes a duct (410) that seals through the wall of the clean water tank (220) and is inserted into the filter media (230) of the filter box (210). The end of the duct (410) located outside the clean water tank (220) is connected to a blower (420). The section of the duct (410) between the blower (420) and the clean water tank (220) is provided with a shut-off valve (430). The section of the duct (410) located in the filter box (210) has multiple blowing holes.

2. The valveless filter for mine water treatment plants according to claim 1, characterized in that, The duct (410) placed in the filter box (210) includes a main pipe section (411) and a branch pipe section (412). The main pipe section (411) is arranged horizontally, and the branch pipe section (412) is perpendicular to the main pipe section (411). The pipe wall of the main pipe section (411) and the pipe wall of the branch pipe section (412) are both provided with the air blowing holes.

3. The valveless filter for mine water treatment plants according to claim 1, characterized in that, The shut-off valve (430) is a ball valve.

4. The valveless filter for mine water treatment plants according to any one of claims 1 to 3, characterized in that, The filter box (210) has a water distribution baffle (211) on the inner side of its top, and the water distribution baffle (211) is located directly below the water inlet of the filter box (210).

5. The valveless filter for a mine water treatment plant according to any one of claims 1 to 3, characterized in that, The bottom end of the backwash drain pipe (320) is equipped with a flow regulating valve (321).

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