CN202348849U

CN202348849U - High-pressure filtering device for back washing of mining hydraulic support

Info

Publication number: CN202348849U
Application number: CN201120489232XU
Authority: CN
Inventors: 张家德; 侯安成; 姜晓红; 吴俊�; 丁原林; 朱红喜
Original assignee: SHANXI PINGYANG GUANGRI ELECTROMECHANICAL CO Ltd
Current assignee: SHANXI PINGYANG GUANGRI ELECTROMECHANICAL CO Ltd
Priority date: 2011-12-01
Filing date: 2011-12-01
Publication date: 2012-07-25
Anticipated expiration: 2021-12-01

Abstract

The utility model discloses a high-pressure filtering device for the back washing of a mining hydraulic support, belonging to the field of the mining filtering device and solving the problems that the traditional mining filtering device for the hydraulic support is complex in operation and has high occurrence rate of failures. The adopted technical scheme is as follows: the high-pressure filtering device mainly comprises a valve body, two valve core components, two filter core components and an electromagnetic pilot valve, all the parts are arranged on the valve body by adopting an integral structure, the assembly and maintenance are convenient, the filtering device is electrically or manually controlled, is simple and convenient to operate and is suitable for a high-pressure high flow working solution; and the filtering device can continuously work on the scene, has high filtration accuracy and filature rate, can be widely used for the back washing high-pressure filtering of the mining hydraulic support and has wide application prospect.

Description

A kind of mine hydraulic bracket backwash high pressure filtering device

Technical field

The utility model relates to a kind of filtrating equipment, is specifically related to the filtrating equipment of the high-end hydraulic support hydraulic system of a kind of big flow.

Background technique

Change in the coal mining in modern times; Its core technology is the comprehensive mechanical coal mining equipment; Hydraulic support is to combine to adopt one of capital equipment in the equipment, and hydraulic support is to be motions such as the power up-down that realizes support, reach with the fluid pressure, realizes the support action to top board; Its support action is for coal-face forms the trouble free service space, and is therefore very high to the security requirement of hydraulic support.The hydraulic work system environment of mine hydraulic bracket is abominable, makes easily in the hydraulic system's media emulsified liquid to have impurity, causes hydraulic support operation ineffective, even damages, and is one of major reason of breaking down of mine fully-mechanized mining equipment.Have filter now owing to be not easy to operate the poor filtration effect that causes, and make the hydraulic control system passage stop up, influence the proper functioning of fully mechanized mining face, the simultaneous faults maintenance is difficult.

Summary of the invention

The utility model technical problem to be solved is existing mine hydraulic bracket filtrating equipment complicated operation; Rate of breakdown is high; And then a kind of filtrating equipment that is applicable to the high-pressure high-flow working solution is provided, at the scene can continuous operation, high, low, the assembling and easy to maintenance of rate of fault of filter precision.

The technological scheme that the utility model adopts is: a kind of mine hydraulic bracket backwash high pressure filtering device; Comprise valve body 1, two mangetic core assemblies 2, two element kits 3 and electromagnetic priority valves 4; Electromagnetic priority valve 4 is screwed on valve body 1; Element kit 2 adopts and is threadedly connected on the valve body 1, and mangetic core assembly 2 is integral plugged structure, is installed in parallel in the valve body 1.

Two mangetic core assemblies 2 of described electromagnetic priority valve 4 controls are the two position three way directional control valve core, are overall structure, alternately open in two mangetic core assembly 2 application processes; Piston 2-6 adopts enclosed construction in mangetic core assembly 2 structures, and spool liquid outlet area and valve port area of passage are big, satisfies the logical liquid requirement of the big flow of filtrating equipment.

The length of described two element kits 3 can require to adjust according to filtering.

The utlity model has following advantage:

1, compact, each component of the utility model reasonable in design all adopt monolithic construction to be installed on the valve body, use and maintenance, easy to maintenance quick, be suitable for abominable in the down-hole, use in the situation complex operating environment, operation.

2, the utility model is through the control of electromagnetic priority valve 4; Two hydraulic control two position three way directional control valve core 2-6 alternately open; Can under the situation of not shutting down, need not to disintegrate, filter core 2-6 be trembled and instead clean, thereby the impurity in the filter screen is discharged the turbidity test that guarantee hydraulic control system.

3, the utility model element kit 3 spins through screw thread and is installed on valve body 1 top, and this structure makes back-flushing filtering device that longer filter element can be installed, and increases the filter capacity and the water environment capacity of back-flushing filtering device by a relatively large margin.

4, the utility model can be realized high-pressure filteration and backwashing function with electronic or manual manipulation mode, has that flow is big, the pressure loss is little, filter core characteristics such as backwash use repeatedly.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model mangetic core assembly 2 sectional views;

Fig. 3 is the utility model working drawing.

Among Fig. 1, P (in) mouthful is backwash filter liquid entering hole (DN40), and P (out) mouthful is the liquid outlet (DN40) behind backwash filter, the impurity exhaust port (DN25) of F mouth for going out through backwash filter;

Among Fig. 2,2-1 A mouth 2-2 F mouth 2-3 B mouth 2-4 Q mouth 2-5 K mouth 2-6 piston 2-7 spool.

Embodiment

Fig. 1 is the utility model structural representation; Mainly comprise valve body 1, two mangetic core assemblies 2, two element kits 3 and electromagnetic priority valves 4 among the figure; Electromagnetic priority valve 4 is screwed on valve body 1; Element kit 2 adopts and is threadedly connected on the valve body 1, and mangetic core assembly 2 is integral plugged structure, is installed in parallel in the valve body 1.

Two mangetic core assemblies 2 of described electromagnetic priority valve 4 controls are the two position three way directional control valve core, are overall structure, and its piston 2-6 adopts enclosed construction; Open liquid return hole earlier when spool 2-7 is opened and close liquid entering hole again, cracking pressure is little, and spool liquid outlet area and valve port area of passage are big; Satisfy the logical liquid requirement of the big flow of filtrating equipment, can not open simultaneously in two mangetic core assembly 2 application processes, can only alternately open; Two filter cores are replaced backwash, and its job order is:

1, by electronic or manually control electromagnetic priority valve 4 conductings;

The controlling liquid of 2, coming out from electromagnetic priority valve 4 gets into the right chamber of piston 2-6 by K mouth 2-5; Promotion piston 2-6 left-hand moves closes liquid entering hole B 2-3; Open backwash passage F 2-2, make that be filtered the impurity that assembly blocks discharges through F mouth 2-2 through A mouth 2-1;

3, K mouth 2-5 pressure was not zero after electromagnetic priority valve 4 was not controlled, and moved to left and resetted at effect lower valve core 2-7, the piston 2-6 of spring and import A 2-1 working pressure and close backwash passage F 2-2, and B mouth 2-3 liquid gets into back-flushing filtering device through A mouth 2-1.

The length of two element kits 3 described in described mangetic core assembly 2 structures can require to adjust according to filtering.

Claims

1. mine hydraulic bracket backwash high pressure filtering device; It is characterized in that; Comprise valve body (1), two mangetic core assemblies (2), two element kits (3) and electromagnetic priority valve (4), electromagnetic priority valve (4) is screwed on valve body (1), and element kit (2) adopts and is threadedly connected on the valve body (1); Mangetic core assembly (2) is integral plugged structure, is installed in parallel in the valve body (1).

2. a kind of mine hydraulic bracket backwash high pressure filtering device as claimed in claim 1; It is characterized in that; Two mangetic core assemblies (2) by electromagnetic priority valve (4) control are the two position three way directional control valve core, are overall structure, alternately open in two mangetic core assemblies (2) application process.

3. according to claim 1 or claim 2 a kind of mine hydraulic bracket backwash high pressure filtering device; It is characterized in that; Piston (2-6) adopts enclosed construction in mangetic core assembly (2) structure, and spool liquid outlet area and valve port area of passage are big, satisfies the logical liquid requirement of the big flow of filtrating equipment.

4. a kind of mine hydraulic bracket backwash high pressure filtering device as claimed in claim 1 is characterized in that, the length of two element kits (3) can require to adjust according to filtering.