Novel mechanical filter for coal mine drainage water

Abstract

The novel mechanical filter comprises a filter body, a connecting flange and a sealing gasket, the connecting flange is fixedly installed at the water inlet input end of the filter body, a lantern ring is arranged on one side of the connecting flange, the section of the lantern ring is in a transverse H shape, a plurality of positioning holes are formed in the inner walls of the two sides of the lantern ring, and the sealing gasket is arranged in the positioning holes. An operator directly presses the cutting ring, so that the sealing gasket is completely and simply cut out, the operation is simple and convenient, the sealing gasket is tightly attached to the cutting ring, the sealing effect is better, then the cutting ring is installed through a positioning rod and a positioning hole, the cutting ring can be directly used, the cutting efficiency is greatly improved, and the labor intensity of workers is reduced. And if the scales indicated on the indicating rod deviate, it represents that the bolt is loosened, so that maintenance personnel can conveniently prevent leakage in advance and stop loss in time, and normal operation of work is ensured.

Description

Technical Field:

[0001] The utility model relates to the field of environmental protection and safe production, and particularly relates to a novel mechanical filter for mine drainage water. Background Art:

[0002] A filter is an indispensable device on the pipeline for conveying medium, usually installed at the inlet end of equipment such as pressure reducing valves, pressure relief valves, constant water level valves, and other equipment. After passing through a filter cartridge with a certain specification filter screen, impurities are blocked. When cleaning is required, as long as the detachable filter cartridge is taken out, and after processing, it can be reinstalled. Therefore, it is extremely convenient to use and maintain.

[0003] Due to the high iron and manganese content in mine drainage water, during mechanical filtration after precipitation softening, the filter material loss during backwashing of the filter is serious, resulting in a large amount of filter material in the collection pool, affecting the water inlet of the mechanical agitation clarifier and the sludge discharge of the collection pool.

[0004] Currently, the raw water is treated by the process of precipitation softening + mechanical filtration to reduce the hardness, total iron, and manganese content in the drainage water. Due to the high pH of the filter inlet water, the inlet pipeline is scaled, there is no filter element inside the filter, and the filter material loss during backwashing is serious. Therefore, a filter element is installed inside the filter to solve the phenomenon of filter material loss.

[0005] However, the pipeline scaling needs to be cleaned regularly. Most of the existing connection methods use flange structures. During the disassembly of the pipeline, it is inevitable to check and replace the gasket. The gasket is made of rubber material. In order to save costs in the factory area, most of them are manually cut by themselves, which is rather troublesome and affects work efficiency. Content of the Utility Model:

[0006] The purpose of the utility model is to provide a novel mechanical filter for mine drainage water.

[0007] The utility model is implemented by the following technical solutions:

[0008] A novel mechanical filter for mine drainage water includes a filter, a connecting flange, and a gasket. A connecting flange is fixedly installed at the water inlet end of the filter. A collar is arranged on one side of the connecting flange. The cross-section of the collar is in the shape of a horizontally placed H. A plurality of positioning holes are arranged on the inner walls of both sides of the collar. A positioning rod in sliding connection is inserted into each positioning hole. One ends of the plurality of positioning rods on the same side are fixedly connected with a cutting ring. The cross-section of the cutting ring is in the shape of a horizontally placed T. The gasket is sleeved on the cutting ring.

[0009] Preferably, a plurality of movable grooves are provided on the collar, a plurality of moving blocks are provided on both sides of the collar, a plug rod is fixedly connected to the side wall of each moving block, an indicating rod is fixedly connected to the outer arc wall of each moving block, each indicating rod passes through the corresponding movable groove and is slidably connected thereto, a plurality of slots are provided on the inner walls of both sides of the collar, a spring is provided in each slot, and each plug rod extends into the slot and is in sliding fit therewith.

[0010] The advantages of the present utility model are as follows: The operator directly presses the cutting ring, so that the gasket is cut out completely and simply. The operation is simple and convenient, and it keeps close fit with the cutting ring, and the sealing effect is better. Then, the cutting ring is installed by using the positioning rod and the positioning hole, so that it can be directly used, which greatly improves the cutting efficiency. If the scale indicated on the indicating rod is offset, it means that the bolt is loose, which is convenient for the maintenance personnel, and can even prevent leakage in advance and stop losses in time to ensure the normal progress of the work. Brief Description of the Drawings:

[0011] Figure 1 is the front view of the filter of the present utility model;

[0012] Figure 2 is the schematic installation structure diagram of the connecting flange in the present utility model.

[0013] In the figure: filter 1, connecting flange 2, collar 3, gasket 4, cutting ring 5, positioning hole 6, positioning rod 7, moving block 8, movable groove 9, indicating rod 10, plug rod 11, slot 12, spring 13. Detailed Description of the Invention:

[0014] Such as Figures 1 to 2As shown in the figure, a new type of mechanical filter for dewatering coal mine drainage water includes a filter 1, a connecting flange 2, and a gasket 4. A connecting flange 2 is fixedly installed at the water inlet end of the filter 1. A collar 3 is arranged on one side of the connecting flange 2. The cross-section of the collar 3 is in the shape of a horizontally placed "H". A plurality of positioning holes 6 are arranged on the inner walls of both sides of the collar 3. A positioning rod 7 connected in a sliding manner is inserted into each positioning hole 6. One ends of the plurality of positioning rods 7 on the same side are fixedly connected with a cutting ring 5. The cross-section of the cutting ring 5 is in the shape of a horizontally placed "T". The gasket 4 is sleeved on the cutting ring 5. When performing maintenance work, that is, cleaning the scale in the water inlet pipe, at this time, the connecting bolts are removed, and then the usage condition of the gasket 4 is checked. If replacement is needed, the corresponding cutting ring 5 is directly removed, and then the inner ring of the cutting ring 5 with an inclined end face is made to contact the sealing rubber gasket, and the operator directly presses the cutting ring 5. In this way, a corresponding tightly fitting circle will be directly pressed out on the sealing rubber gasket, and then the outer ring of the cutting ring 5 is pressed to cut out a complete sealing rubber ring. At this time, the middle circular gasket is dug out, so that the sealing rubber ring stays on the cutting ring 5, and thus the gasket 4 is cut out completely and simply. The operation is simple and convenient, and it keeps a tight fit with the cutting ring 5, and the sealing effect is better. Then, the cutting ring 5 is installed by using the positioning rod 6 and the positioning hole 7, and then it can be directly used, greatly improving the cutting efficiency.

[0015] A plurality of movable grooves 9 are arranged on the collar 3. A plurality of moving blocks 8 are arranged on both sides of the collar 3. A plug rod 11 is fixedly connected to the side wall of each moving block 8. An indicating rod 10 is fixedly connected to the outer arc wall of each moving block 8. Each indicating rod 10 passes through the corresponding movable groove 9 and is slidably connected therewith. A plurality of slots 12 are arranged on the inner walls of both sides of the collar 3. A spring 13 is arranged in each slot 12. Each plug rod 11 extends into the slot 12 and is in sliding contact therewith. At the same time, since the mechanical filter 1 is adopted, the bolts used for locking will inevitably become loose under vibration. In order to ensure the sealing performance, an indicating rod 10 is provided. If the scale indicated on the indicating rod 10 is offset, it means that the bolts are loose and need to be tightened again. The spring 13 is in a compressed state under force, so that during the loosening process, the moving block 8 can also move along with the elastic force to ensure the normal progress of the indicating work. This is convenient for maintenance personnel and can prevent leakage in advance and stop losses in time to ensure the normal progress of the work.

[0016] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of mechanical filter for coal mine drainage water, characterized by: It includes a filter, a connecting flange and a sealing gasket. The water inlet input end of the filter is fixedly installed with a connecting flange. A ring is provided on one side of the connecting flange. The cross section of the ring is a horizontal H-shape. Multiple positioning holes are provided on the inner walls on both sides of the ring. A slidingly connected positioning rod is inserted into each positioning hole. A cutting ring is fixedly connected between one ends of the multiple positioning rods on the same side. The cross section of the cutting ring is a horizontal T-shape. The sealing gasket is sleeved on the cutting ring.

2. A novel mechanical filter for coal mine drainage water according to claim 1, characterized in that: The collar is provided with a plurality of movable grooves, and a plurality of movable blocks are provided on both sides of the collar. An insertion rod is fixedly connected to the side wall of each movable block, and an indicator rod is fixedly connected to the outer arc wall of each movable block. Each indicator rod passes through the corresponding movable groove and is slidably connected thereto. A plurality of slots are provided on the inner walls on both sides of the collar, and a spring is provided in each slot. Each insertion rod extends into the slot and is slidably connected thereto.

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