CN2627218Y

CN2627218Y - Soft coal seam drilling dust-proof equipment

Info

Publication number: CN2627218Y
Application number: CN 03246012
Authority: CN
Inventors: 崔刚明
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-06-20
Filing date: 2003-06-20
Publication date: 2004-07-21
Anticipated expiration: 2013-06-20

Abstract

A borehole dustproof device of soft coal seam is provided, which reduces the coal dust expansion interval generated from borehole by a wide margin through a dust cover fixed on the borehole place, a sprinkle valve arranged in the upper part of the dust cover, and a spray valve arranged in the lower part of the dust cover, making the coal dust compress in the dust cover for controlling the dust cleaning. The composite force of the gas pressure and compressed air pressure in the coal wall are utilized to impact a flap on the open and close handle of the sprinkle valve, so as to realize the coal dust automatic sprinkle. The device has changed the past large-scale dust removal device with simple structure, convenient arrangement and displacement, the dust cleaning effects are remarkably improved, and a great quantity of water resources can simultaneously be saved.

Description

Soft seam boring dust guard

Technical field

The utility model relates to a kind of dust guard, particularly a kind of soft seam boring dust guard.

Background technology

The purpose of soft seam depth boring is the gas in the discharging coal seam, in boring, must press wind to the drill bit deep by the drilling rod mesopore, the gas of depths, coal seam and coal dust B are drained to coal road road D wind direction direction along the drilling rod periphery, the coal dust of this moment is very serious to the pollution of whole coal road.Coal dust processing method to boring produces normally is equipped with several shower A in the tunnel, the coal dust that produces when holing is opened the valve of shower when wind direction enters coal road, coal dust is carried out dust removal process.There is following deficiency in the method for this dedusting:

1, the cleaner volume is big and heavy, installs, displacement is comparatively heavy.

2, dust removing effects is also not ideal, and because of the coal road area is bigger, spray is difficult to all take into account.

3, water consumption is big, water resource waste is more serious.

The utility model content

It is a kind of simple in structure that the purpose of this utility model will provide exactly, is convenient to install, displacement, water saving and soft seam boring dust guard dustproof satisfactory for result.

For achieving the above object, the utility model adopts following technical scheme: soft seam boring dust guard is provided with dust cover at the boring position.Dust cover top is equipped with the spray valve; The dust cover bottom is equipped with spray valve.Position by drilling rod on the dust cover is provided with dustproof axle sleeve.On the keying handle of spray valve, be installed with a turnover panel.The spray valve mainly is made of valve body, spool, air intake, water inlet, nozzle, has a cavity to be communicated with air intake, water inlet and nozzle respectively in the spool.The outlet of one humidifying coal dust is arranged in the dust cover lower end.

In use, earlier dust cover is fixed on the rib that desire will hole, then, drill bit, drilling rod is inserted in the dustproof axle sleeve of dust cover front, open spray valve, make the dust cover bottom produce water smoke.Begin to start rig subsequently, begin boring, when getting into certain depth, within the walls gas pressure of coal, press wind pressure make a concerted effort and coal dust sprays to the dust cover direction from the drilling rod periphery, its with joint efforts fixedly the turnover panel that opens and closes on the handle of shower valve back down, shower valve is opened automatically, water sprays from the spray valve nozzle, the coal dust humidifying that boring is released, and flow out from the humidifying coal dust outlet of dust cover lower end with water.Gas pressure in boring weakens, and turnover panel also recovers raw bits gradually, and shower valve is closed again.Boring is proceeded, and coal dust is also flowed out from the humidifying coal dust outlet of dust cover lower end by the spraying humidifying of spray valve.

Advantage of the present utility model is:

1, will hole and dwindle significantly between the expansion area that produces coal dust, and coal dust will be compressed in be beneficial in the dust cover of the control and the dirt that disappears.

2, realize the rapid humidifying of coal dust by shower valve in the dust cover and spray valve, humidifying is more thorough, and the dirt that disappears is effective.

3, the more existing spray dirt device that disappears is simple in structure.Little because of the dirt space that disappears, water supply volume also reduces significantly, can save great lot of water resources.

4, it is simple in structure, volume is little, in light weight, be convenient to install and displacement.

Description of drawings

Fig. 1 is existing coal road boring dedusting schematic diagram.

Fig. 2 is the utility model structural representation.

Fig. 3 is the utility model spray valve schematic diagram.

Fig. 4 is the utility model Fig. 3 left view.

(Reference numeral)

Fig. 1 A shower B boring coal dust trend

C coal road wind direction D coal road

Fig. 2

1 dust cover, 2 spray valves, 3 turnover panels, 4 gas, coal dust release direction

The outlet of 5 drill bits, 6 bolts, 7 ribs, 8 humidifying coal dusts

9 spray valves, 10 drilling rods 11 press wind to move towards 12 dustproof axle sleeves

13 water inlets, 14 air intakes, 15 nuts, 16 nozzles

Stifled 20 cavitys of 17 valve body 18 spools, 19 sealings

The specific embodiment

Soft seam boring dust guard is to be made of dust cover 1, spray valve 2, spray valve 9, dustproof axle sleeve 12, turnover panel 3, humidifying coal dust outlet 8.Dust cover top is equipped with spray valve 2, and the spray valve has a cavity 20 to be communicated with air intake, water inlet and nozzle respectively mainly by valve body 17, spool 18, air intake 14, constitute with water inlet 13, nozzle 16 in the spool.Wind mixes the back with water and sprays from nozzle in cavity 20, form water smoke, has good dedusting effect.The gas amount of releasing that produces when boring weakens gradually, and turnover panel 3 recovers the home position, and promptly the shower valve door is closed by the variation of spool angle.In the dust cover bottom spray valve 9 is installed, the position by drilling rod on the dust cover is provided with dustproof axle sleeve 12.On the keying handle of spray valve, be installed with a turnover panel 3.One humidifying coal dust outlet 8 is arranged in the dust cover lower end.Because the drilling rod cross section is rectangle or polygon, in order to play the dustproof purpose, manufacture internal orifice shape and drilling rod cross sectional shape especially and coincide and the dustproof axle sleeve of cylindrical and dust cover round mouth matched in clearance, drilling rod can vertically be advanced and retreat like this, radially rotatable again, and can play dustproof purpose.

Claims

1, a kind of soft seam boring dust guard, it is characterized in that: be provided with dust cover (1) at the boring position, dust cover top is equipped with spray valve (2), and the dust cover bottom is equipped with spray valve (9), and the position by drilling rod on the dust cover is provided with dustproof axle sleeve (12).

2, soft seam boring dust guard according to claim 1 is characterized in that: be installed with a turnover panel (3) on the keying handle of spray valve.

3, soft seam boring dust guard according to claim 1, it is characterized in that: the spray valve mainly is made of valve body (17), spool (18), air intake (14), water inlet (13), nozzle (16), has a cavity (20) to be communicated with air intake, water inlet and nozzle respectively in the spool.