Dry-type dust removal device for construction drilling

Abstract

The utility model discloses a construction drill hole dry type dust removal device which comprises a sleeve, a conical rubber sleeve is fixed on the periphery of the sleeve, one end of the sleeve extends into an opening of a drill hole, and the other end of the sleeve is sequentially connected with a gas-slag separation cavity and a dust removal cavity. The upper end of the gas-slag separation cavity is connected with a negative pressure connecting pipe inclining towards the side away from the drill hole, the negative pressure connecting pipe is connected with the top of the dust removal cavity through a drainage hose, and the lower end of the gas-slag separation cavity is connected with a slag discharging connecting pipe inclining towards the side away from the drill hole. The end, away from the drill hole, of the dust removal cavity is closed. According to the dust removal device, the dust removal efficiency is improved, the harm of dust to the life of staff is reduced, the drilling construction efficiency is improved, and the cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a construction drilling dry type dust removal device belongs to coal mine gas extraction technical field. BACKGROUND

[0002] In the process of mining and excavation of coal and gas outburst mine, gas control is the most important, must first carry out coal seam pre-drainage gas, and when pre-drainage gas, the quality of construction drilling is particularly important, and the selection of the way of slag discharge is related to the quality of gas drainage and occupational health, using dry construction drilling is the most efficient method of construction, but a large amount of dust will be produced, endangering the life and health of workers. CONTENT OF THE UTILITY MODEL

[0003] The utility model solves the technical problems in the prior art.

[0004] The utility model takes the technical scheme as follows: a construction drilling dry type dust removal device, including the sleeve pipe, the outer periphery of sleeve pipe is fixed with the tapered rubber sleeve, one end of sleeve pipe goes into the mouth part of drilling, the other end of sleeve pipe is connected with gas slag separation chamber and dust removal chamber in proper order, the upper end of gas slag separation chamber is connected with the negative pressure connecting pipe that is inclined to the side away from drilling, the negative pressure connecting pipe is connected with the top of dust removal chamber through the drainage hose, the lower end of gas slag separation chamber is connected with the slag discharge connecting pipe that is inclined to the side away from drilling, the end of dust removal chamber away from drilling is closed.

[0005] Preferably, the sleeve pipe and the gas slag separation chamber, the gas slag separation chamber and the dust removal chamber are connected by flanges.

[0006] Preferably, the end of the dust removal chamber away from the drilling is connected with a flange blind plate.

[0007] Preferably, the middle of the flange is provided with a rubber pad.

[0008] Preferably, the end of the negative pressure connecting pipe connected with the drainage hose is provided with a gas slag separation chamber dust removal connecting pipe, and the end of the dust removal chamber connected with the drainage hose is provided with a dust removal chamber dust removal connecting pipe.

[0009] Preferably, the cross section of the gas slag separation chamber in the axial direction is hexagonal.

[0010] Preferably, the cross section of the dust removal chamber in the axial direction is hexagonal.

[0011] The utility model has the advantages that compared with the prior art, the utility model improves the dust removal efficiency, reduces the harm of dust to the life of workers, improves the efficiency of drilling construction, and saves the cost. Attached Figure Description

[0012] Figure 1 This is an overall structural diagram of the utility model.

[0013] The reference numerals in the accompanying drawings include: sleeve 1, conical rubber sleeve 2, gas-slag separation chamber 3, negative pressure connecting pipe 4, gas-slag separation chamber dust removal connecting pipe 5, extraction hose 6, dust removal chamber dust removal connecting pipe 7, dust removal chamber 8, flange 9, rubber gasket 10, and slag discharge connecting pipe 11. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1:

[0016] A dry dust removal device for construction drilling, such as Figure 1 As shown, the system includes a casing 1 with an outer diameter of 100mm, an inner diameter of 75mm, and a length of 600mm. A conical rubber sleeve 2 is fixed to the outer circumference of the casing 1. The outer diameter of the conical rubber sleeve 2 is 110mm-140mm, and its length is 400mm. The left end of the conical rubber sleeve 2 is 100mm away from the left end of the casing 1. The left ends of the casing 1 and the conical rubber sleeve 2 extend into the borehole opening to seal it. The right end of the casing 1 is connected to a gas-slag separation chamber 3 and a dust removal chamber 8 via a flange 9. The cross-section of the gas-slag separation chamber 3 along its axial direction is hexagonal, and its maximum diameter is 200mm. The axial length of the upper and lower ends of the gas-slag separation chamber 3 is 200mm. A negative pressure connecting pipe inclined to the upper right is connected to the upper end of the gas-slag separation chamber 3. 4. The outer diameter of the negative pressure connecting pipe 4 is 108mm and the wall thickness is 3mm. The lower end of the middle part of the negative pressure connecting pipe 4 is connected to the dust removal connecting pipe 5 of the gas-slag separation chamber with an outer diameter of 37mm. The dust removal connecting pipe 5 of the gas-slag separation chamber is arranged at an angle to the lower right. The lower end of the gas-slag separation chamber 3 is connected to the slag discharge connecting pipe 11, which is inclined to the lower right. The slag discharge connecting pipe 11 has an outer diameter of 108mm and a wall thickness of 3mm. The cross-section of the dust removal chamber 8 in the axial direction is hexagonal. The maximum diameter of the dust removal chamber 8 is 200mm. The upper end of the dust removal chamber 8 is provided with the dust removal connecting pipe 7 of the dust removal chamber, which is arranged at an angle to the upper left. The dust removal connecting pipe 5 of the gas-slag separation chamber and the dust removal connecting pipe 7 of the dust removal chamber are connected through the extraction hose 6. The right end of the dust removal chamber 8 is connected to the flange blind plate. A rubber gasket 10 with a thickness of 5mm is provided in the middle of the flange 9.

[0017] In the construction drilling, first use the sleeve 1 and the rubber sleeve 2 to seal the hole, the negative pressure connecting pipe 4 is connected to the negative pressure pipeline through the negative pressure pipeline connection equipment, using the negative pressure will dust and drill cuttings into the gas cuttings separation chamber 3, the harmful gas through the negative pressure connecting pipe 4 into the negative pressure pipeline, drill cuttings through the discharge connecting pipe 11 discharge, the dust into the dust removal chamber 8, through the gas cuttings separation chamber dust removal connecting pipe 5, exhaust hose 6, dust removal chamber dust removal connecting pipe 7 into the negative pressure connecting pipe 4 into the negative pressure pipeline, to achieve the dust removal effect.

[0018] The above merely illustrates the specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of the changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application, therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A construction drill hole dry dust removal device characterized by: The sleeve is provided with a conical rubber sleeve on the outer periphery, one end of the sleeve extends into the mouth of the borehole, the other end of the sleeve is connected with a gas slag separation chamber and a dust removal chamber in sequence, the upper end of the gas slag separation chamber is connected with a negative pressure connection pipe which is inclined to the side away from the borehole, the negative pressure connection pipe is connected with the top of the dust removal chamber through a suction hose, the lower end of the gas slag separation chamber is connected with a slag discharge connection pipe which is inclined to the side away from the borehole; the end of the dust removal chamber away from the borehole is closed.

2. The construction drilling dry dust removal device according to claim 1, characterized in that: The sleeve and the gas slag separation chamber, the gas slag separation chamber and the dust removal chamber are connected through flanges.

3. The construction drilling dry dust removal device according to claim 2, characterized in that: The end of the dust removal chamber away from the borehole is connected with a flange blind plate.

4. The construction drilling dry dust removal device according to claim 3, characterized in that: The middle of the flange is provided with a rubber pad.

5. The construction drilling dry dust removal device according to claim 1, characterized in that: The end of the negative pressure connection pipe connected with the suction hose is provided with a gas slag separation chamber dust removal connection pipe, the end of the dust removal chamber connected with the suction hose is provided with a dust removal chamber dust removal connection pipe.

6. The construction drilling dry dust removal device according to claim 1, characterized in that: The cross section of the gas slag separation chamber in the axial direction is hexagonal.

7. The construction drilling dry dust removal device according to claim 1, characterized in that: The cross section of the dust removal chamber in the axial direction is hexagonal.

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