CN210217726U

CN210217726U - Negative pressure dust falling device for coal mining machine

Info

Publication number: CN210217726U
Application number: CN201921111638.7U
Authority: CN
Inventors: Bingwei Li; 李兵伟; Niujun Jia; 贾牛骏; Baoshan Jia; 贾宝山; Xiaobai Li; 李晓白; Deji Jing; 荆德吉; Peng Sun; 孙鹏; Mingyi Liu; 刘明义; Meichang Zhang; 张美长; Jian Chen; 陈健; Wei Wang; 汪伟
Original assignee: Shanxi Holzer Xin He Coal Industry Co Ltd; Liaoning Technical University
Current assignee: Shanxi Holzer Xin He Coal Industry Co Ltd; Liaoning Technical University
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-03-31
Anticipated expiration: 2029-07-16

Abstract

The utility model relates to the technical field of coal mining machines, in particular to a negative pressure dust-settling device for a coal mining machine, which solves the problems that the high-pressure water mist dust-settling effect is poor and an atomizing nozzle is easy to block in the prior art, and comprises a mounting plate, a dust-settling pipe, a water storage tank and a spray pipe, wherein the upper part of the mounting plate is fixed with the water storage tank by a bolt, the upper part of the water storage tank is provided with a water injection channel by a through-hole bolt, the water storage tank is provided with a water outlet hole and is fixed with a water outlet pipe by a flange, one end of the water outlet pipe is connected with a water inlet pipe by a water pump, one end of the water inlet pipe is fixed on a connecting pipe by a flange, the spray pipe is fixed by a thread on the connecting pipe, one end of the spray pipe passes through the dust-settling pipe and extends into the inner cavity, the filter screen in the dust fall pipe plays a role in filtering impurities in circulating dust.

Description

Negative pressure dust falling device for coal mining machine

Technical Field

The utility model relates to a coal-winning machine technical field especially relates to a negative pressure dust device for coal-winning machine.

Background

The continuous improvement of the comprehensive mechanized coal mining degree of the coal mine brings great economic benefits and also causes a plurality of negative effects, wherein the biggest problem is the generation of high-concentration coal dust, the safe and efficient production of a mine is seriously influenced, and the threat to the health of underground operators is caused. The dust on the fully mechanized mining face of the coal mine mainly comes from cutting dust production of a roller of a coal mining machine and falling dust of a moving frame of a hydraulic support, accounts for more than 90% of the total dust production of the fully mechanized mining face, and is the key point of dust control work.

At present, the existing spraying dust-settling and dust-preventing device of the underground coal mining machine generally adopts high-pressure water to spray directly, water mist and coal dust contact one-time dust settling, and part of the coal dust is blown by the water mist to fly before reaching, so that the dust-settling effect is poor. Adopt atomizer to combine certain equipment to carry out the dust fall and handle, atomizer is very easily blockked up in the use to the unable recovery of water resource is recycled.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the high-pressure water mist dust removal effect existing in the prior art is poor, and the shortcoming that the atomizer is easy to block up, and the negative pressure dust falling device for the coal mining machine that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a negative pressure dust device for coal-winning machine, includes mounting panel, dust fall pipe, water storage box and spray pipe, the upper portion bolt fastening of mounting panel has the water storage box, and the upper portion of water storage box sets up the through-hole bolt fastening and has the water injection passageway, set up the apopore on the water storage box and the flange is fixed with the outlet pipe, and the one end of outlet pipe is connected with the inlet tube through the water pump, the one end flange of inlet tube is fixed on the connecting pipe, threaded fastening has the spray pipe on the connecting pipe, and the one end of spray pipe passes the dust fall pipe extends to in its inner chamber, the entrance point of dust fall pipe and the exit end interconnect of air-blower, and the entrance point of air-blower is connected with the dust absorption pipe, the exit end of dust;

the dust settling pipe is provided with a drain hole at the bottom close to the exhaust fan, a drain pipe is fixed on the flange, and one end of the drain pipe is connected to the water storage tank.

Preferably, the bottom of the dust falling pipe is fixed with a mounting block through a bolt, and a connecting pipe is fixed on a side wall of the mounting block through a bolt.

Preferably, four threaded holes are formed in the connecting pipe, and the spraying pipe is fixedly connected with the connecting pipe through threads.

Preferably, the spray pipe is provided with an atomizer, and the atomizer is arranged outside the dust fall pipe.

Preferably, the dust fall pipe is close to a filter screen is arranged in an inner cavity of the exhaust fan.

Preferably, a filter is arranged between the water discharge pipes, and the filter is selected from a dust filter.

The utility model has the advantages that:

1. the utility model discloses, the start-up of control air exhauster makes the intraductal negative pressure space that forms of dust fall, makes dust and the water smoke in the dust fall pipe fully contact, reaches the effect of dust fall to at the in-process of dust fall, the intraductal filter screen of dust fall plays filterable effect to the impurity in the dust of circulation.

2. The utility model discloses, dust and water smoke after each other contact in the dust fall pipe, gaseous discharge through the discharge pipe, liquid will flow through the drain pipe, and follow-up filtration through the filter circulates to the water storage box in, realizes recycling the processing of waste water.

Drawings

Fig. 1 is a schematic view of a front view structure of a negative pressure dust settling device for a coal mining machine according to the present invention;

fig. 2 is a left side view structural schematic diagram of a dust settling pipe of the negative pressure dust settling device for the coal mining machine provided by the utility model;

fig. 3 is the utility model provides a coal-winning machine is with negative pressure dust device's water storage box connection structure's overlook schematic diagram.

In the figure: the device comprises a mounting plate 1, a water inlet pipe 2, a mounting block 3, a connecting pipe 4, a spraying pipe 5, a dust falling pipe 6, an air blower 7, a dust suction pipe 8, a filter screen 9, a discharge pipe 10, an atomizer 11, an exhaust fan 12, a drain pipe 13, a filter 14, a water injection channel 15, a water storage tank 16, a water outlet pipe 17 and a water pump 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example (b): referring to fig. 1-3, a negative pressure dust-settling device for a coal mining machine comprises a mounting plate 1, a dust-settling pipe 6, a water storage tank 16 and a spray pipe 5, wherein the water storage tank 16 is fixed on the upper portion of the mounting plate 1 through bolts, a water injection channel 15 is fixed on the upper portion of the water storage tank 16 through bolts, a water outlet hole is formed in the water storage tank 16, a water outlet pipe 17 is fixed on a flange, one end of the water outlet pipe 17 is connected with a water inlet pipe 2 through a water pump 18, one end of the water inlet pipe 2 is fixed on a connecting pipe 4, the spray pipe 5 is fixed on the connecting pipe 4 through threads, one end of the spray pipe 5 extends into an inner cavity of the spray pipe 6 after penetrating through the dust-settling pipe 6, an atomizer 11 is installed on the spray pipe 5, the atomizer 11 is arranged outside the dust-settling pipe 6, an inlet end of the dust-settling pipe 6 is connected with an, the outlet end of the exhaust fan 12 is connected with a discharge pipe 10, and a filter screen 9 is arranged in the inner cavity of the dust settling pipe 6 close to the exhaust fan 12;

wherein, the bottom that dust fall pipe 6 is close to air exhauster 12 has seted up the wash port to the flange is fixed with drain pipe 13, and the one end of drain pipe 13 is connected on water storage box 16, is provided with filter 14 between the drain pipe 13, and filter 14 selects the dust filter, and the bottom bolt fastening of dust fall pipe 6 has installation piece 3, and the lateral wall bolt fastening of installation piece 3 has connecting pipe 4, has seted up four screw holes on connecting pipe 4, equal screw thread fixedly connected with spray pipe 5.

Specifically, through the connection of the mounting plate 1, the dust removal device can be mounted on a mining machine, negative pressure dust suppression work is convenient to perform, the air blower 7 is started, external dust is blown into the dust suppression pipe 6 through the dust absorption pipe 8, the water pump 18 is started, water in the water storage tank 16 is discharged through the water outlet pipe 17, the water flows into the connecting pipe 4 through the water inlet pipe 2 under the connection of the water pump 18 and flows into the spray pipe 5 through the connecting pipe 4, the atomized water is sprayed into the dust suppression pipe 6 through the spray pipe 5 by utilizing the atomizer 11 mounted on the spray pipe 5, and the water mist can be uniformly sprayed into the dust suppression pipe 6 through the arrangement of the spray pipes 5 which are sequentially distributed;

furthermore, the start of the exhaust fan 12 is controlled, so that a negative pressure space is formed in the dust falling pipe 6, dust in the dust falling pipe 6 is fully contacted with water mist, the dust falling effect is achieved, in the dust falling process, the filter screen 9 in the dust falling pipe 6 plays a role in filtering impurities in circulating dust, and the filtered dust falling gas is discharged through the discharge pipe 10 under the connecting effect of the exhaust fan 12;

still further, dust and water smoke in the dust fall pipe 6 after each other contact, gaseous discharge through discharge pipe 10 will be discharged, and liquid will flow out through drain pipe 13, and follow-up filtration through filter 14 circulates to the water storage box 16 in, realizes recycling the processing of waste water, has improved the utilization ratio to the water resource, and the water in the water storage box 16 adds through water injection passageway 15.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a negative pressure dust device for coal-winning machine, includes mounting panel (1), dust fall pipe (6), water storage box (16) and spray pipe (5), the upper portion bolt fastening of mounting panel (1) has water storage box (16), and the upper portion of water storage box (16) is seted up the through-hole bolt fastening and is had water injection passageway (15), its characterized in that, set up apopore and flange fastening on water storage box (16) and have outlet pipe (17), and the one end of outlet pipe (17) is connected with inlet tube (2) through water pump (18), the one end flange fastening of inlet tube (2) is on connecting pipe (4), threaded fastening has spray pipe (5) on connecting pipe (4), and the one end of spray pipe (5) passes dust fall pipe (6) extend to in its inner chamber, the entrance point of dust fall pipe (6) and the exit end interconnect of air-blower (7), and the entrance point of air-blower (7) is connected with dust absorption pipe (, the outlet end of the dust settling pipe (6) is connected with the inlet end of an exhaust fan (12), and the outlet end of the exhaust fan (12) is connected with a discharge pipe (10);

a drain hole is formed in the bottom, close to the exhaust fan (12), of the dust falling pipe (6), a drain pipe (13) is fixed to the flange, and one end of the drain pipe (13) is connected to the water storage tank (16).

2. The negative-pressure dust suppression device for the coal mining machine according to claim 1, wherein a mounting block (3) is bolted to the bottom of the dust suppression pipe (6), and a connecting pipe (4) is bolted to the side wall of the mounting block (3).

3. The negative-pressure dust settling device for the coal mining machine is characterized in that the connecting pipe (4) is provided with four threaded holes, and each threaded hole is fixedly connected with a spraying pipe (5).

4. The negative-pressure dust falling device for the coal mining machine is characterized in that an atomizer (11) is mounted on the spraying pipe (5), and the atomizer (11) is arranged outside the dust falling pipe (6).

5. The negative-pressure dust settling device for the coal mining machine is characterized in that a filter screen (9) is arranged in an inner cavity of the dust settling pipe (6) close to the exhaust fan (12).

6. The negative-pressure dust settling device for the coal mining machine is characterized in that a filter (14) is arranged between the water discharge pipes (13), and the filter (14) is a dust filter.