CN209976500U

CN209976500U - Drilling blowout preventer

Info

Publication number: CN209976500U
Application number: CN201920562261.0U
Authority: CN
Inventors: 严涛
Original assignee: Anhui Zhongfei Safety Technology Co Ltd
Current assignee: Anhui Zhongfei Safety Technology Co Ltd
Priority date: 2019-04-24
Filing date: 2019-04-24
Publication date: 2020-01-21
Anticipated expiration: 2029-04-24

Abstract

The utility model discloses a drilling blowout preventer, including the dust trapper, the gas sediment separator, arrange the sediment bucket, water spraying system, the dust trapper is including pre-buried pipe, the dust cover is installed at pre-buried pipe's rear, the dust guard is installed at the rear of dust cover, be equipped with the powder sediment export on the dust cover, the powder sediment export is through pipe connection to gas sediment separating chamber, gas sediment separating chamber upper end is equipped with the water jet, press the wind gap and take out the extraction hole, water jet department installs the water spray cover, it has the shower nozzle to distribute on the water spray cover, take out the extraction hole and pass through pipe connection to the air exhauster, take out the bottom mouth department in hole and install the filtration fan housing, install the filter screen that the multilayer interval set up in the filtration fan housing, the row's sediment bucket is installed to the end of giving vent to anger of gas sediment separating chamber, the bottom. The utility model has the advantages of reasonable design, adopt the combination of negative pressure drainage pipeline and wet-type water spraying, beat and bore and arrange the sediment each other noninterfere, arrange the sediment dust removal effect good, satisfied operation requirement.

Description

Drilling blowout preventer

The technical field is as follows:

the utility model relates to a sediment technical field is arranged in the colliery is drilled, mainly relates to a drilling blowout preventer.

Background art:

at present, two modes are adopted for drilling and deslagging in a coal mine, the first mode is water drainage, and the coal mine drilling and deslagging device has the advantages that dust can be prevented, and the temperature of a drill bit cannot be increased. The disadvantages that the drill rod is easy to clamp, the drilling speed is slow, and the gas and coal ash can not be sprayed out; the second is to use wind to exhaust, the method has the advantages of less drill jamming and high speed, but the problem of gas, coal and rock dust ejection is still solved, and the drill generates a certain temperature. Therefore, the drilling and deslagging mode needs to be modified.

The utility model has the following contents:

the utility model discloses the purpose is exactly in order to compensate prior art's defect, provides a drilling blowout preventer, and it adopts the combination of negative pressure drainage pipeline and wet-type water spraying, and it does not influence each other with arranging the sediment to beat the brill, and it is effectual to arrange the sediment dust removal, has satisfied operation requirement.

The utility model discloses a realize through following technical scheme:

the utility model provides a drilling blowout preventer, includes dust catcher, gas slag separator, arranges sediment bucket, spraying system, its characterized in that: the dust catcher comprises a pre-buried pipe, a dust cover is installed at the rear of the pre-buried pipe, a dust guard plate is installed at the rear of the dust cover, a powder residue outlet is formed in the dust cover and is connected to a gas-residue separation chamber through a guide pipe, a water spraying port, a compressed air port and an extraction hole are formed in the upper end of the gas-residue separation chamber, the water spraying port is connected to a water inlet pipeline through a pipeline, a water spraying cover is installed at the water spraying port, spray heads are distributed on the water spraying cover, the extraction hole is connected to an air exhauster through a pipeline, a filtering air cover is installed at the bottom port of the extraction hole, a plurality of layers of filter screens arranged at intervals are installed in the filtering air cover, a residue discharging barrel is installed at the air outlet end of the gas-residue separation chamber, a residue discharging port is formed in the bottom end of the.

The pipe constitute by vertical section and horizontal segment, its vertical section is installed at the middle part of horizontal segment, and the one end of horizontal segment connects in the gas-slag separation chamber, and the push pedal is installed to the other end, the push pedal is driven by the cylinder of its outer end, be equipped with the draw-in groove on the peripheral lateral wall of push pedal, the card is equipped with the sealing washer in the draw-in groove, and seals through the sealing washer between push pedal and the pipe inner wall.

The bottom ends of the gas-slag separation chamber and the slag discharge barrel are provided with horizontally arranged conveying shafts, and spiral conveying blades are distributed on the conveying shafts.

The device mainly comprises a dust catcher (a pre-buried pipe, a dust cover and a dust guard), a gas-slag separator, a slag discharging barrel, a spraying system and a manual pneumatic slag discharging switch, and is externally connected with a gas drainage pipeline, a compressed air pipeline and a water supply pipeline. The method comprises the steps of firstly placing a pre-buried pipe in a drill hole, covering a dust cover on a drill rod, connecting the dust cover with a guide pipe, collecting harmful substances such as dust and gas in the dust cover under the action of negative pressure when the dust cover is drilled, enabling the harmful gases to flow into a gas-slag separator through the guide pipe, pumping some harmful gases such as gas into a main pipeline through a gas pumping and discharging pipeline, rotating a manual pneumatic slag discharging switch to enable positive pressure generated in a slag discharging barrel to discharge the coal slag and the sewage when the coal slag and the sewage in the slag discharging barrel reach a certain amount, and directly and automatically feeding the coal slag and the sewage into a mine car or a remote ditch or a sewage treatment pool.

The utility model has the advantages that:

1. drilling, gas drainage and dust removal are carried out synchronously;

2. the negative pressure drainage pipeline is adopted, and the gas pumping effect reaches 98%;

3. a water supply pipeline is adopted to spray the dust cover of the device, and the dust fall rate reaches 98%;

4. drilling and deslagging are not affected mutually;

5. the protruded coal, sludge in the drill hole and sewage can be sent into a mine car, a ditch, a sewage treatment pool or a belt conveyor through compressed air;

6. the device has light weight, small volume and convenient installation and transportation, can improve the working efficiency, purify the ambient air and achieve the aim of safe production.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

The specific implementation mode is as follows:

see the drawings.

A drilling blowout preventer comprises a dust catcher, a gas-slag separator, a slag discharge barrel and a spraying system, wherein the dust catcher comprises a pre-buried pipe 1, a dust cover 2 is arranged behind the pre-buried pipe 1, a dust plate 3 is arranged behind the dust cover 2, a slag outlet 4 is arranged on the dust cover 3, the slag outlet 4 is connected to a gas-slag separation chamber 5 through a guide pipe 17, a water spraying opening 6, a wind pressing opening 7 and an extraction hole 8 are arranged at the upper end of the gas-slag separation chamber 5, the water spraying opening 6 is connected to a water inlet pipeline through a pipeline, a water spraying cover 9 is arranged at the water spraying opening 6, spray heads 10 are distributed on the water spraying cover 9, the extraction hole 8 is connected to an exhaust fan through a pipeline, a filtering fan cover 12 is arranged at the bottom end of the extraction hole 8, a plurality of layers of filtering nets 13 arranged at intervals are arranged in the filtering fan cover 12, and a slag discharge barrel 14 is arranged at the gas outlet end of the gas, the bottom end of the slag discharging barrel 14 is provided with a slag discharging port 15, and a check valve 16 is installed on the slag discharging port 15.

The pipe 17 constitute by vertical section and horizontal segment, its vertical section is installed at the middle part of horizontal segment, and the one end of horizontal segment is connected in gas-slag separation chamber 5, and push pedal 18 is installed to the other end, push pedal 18 is driven by the cylinder 19 of its outer end, be equipped with the draw-in groove on the peripheral lateral wall of push pedal 18, the card is equipped with sealing washer 20 in the draw-in groove, and seals through the sealing washer between push pedal 18 and the pipe inner wall.

The bottom ends of the gas-slag separation chamber 5 and the slag discharge barrel 14 are provided with a horizontally arranged conveying shaft 21, and spiral conveying blades 22 are distributed on the conveying shaft 21.

Claims

1. The utility model provides a drilling blowout preventer, includes dust catcher, gas slag separator, arranges sediment bucket, spraying system, its characterized in that: the dust catcher comprises a pre-buried pipe, a dust cover is installed at the rear of the pre-buried pipe, a dust guard plate is installed at the rear of the dust cover, a powder residue outlet is formed in the dust cover and is connected to a gas-residue separation chamber through a guide pipe, a water spraying port, a compressed air port and an extraction hole are formed in the upper end of the gas-residue separation chamber, the water spraying port is connected to a water inlet pipeline through a pipeline, a water spraying cover is installed at the water spraying port, spray heads are distributed on the water spraying cover, the extraction hole is connected to an air exhauster through a pipeline, a filtering air cover is installed at the bottom port of the extraction hole, a plurality of layers of filter screens arranged at intervals are installed in the filtering air cover, a residue discharging barrel is installed at the air outlet end of the gas-residue separation chamber, a residue discharging port is formed in the bottom end of the.

2. The borehole blowout preventer of claim 1, wherein: the pipe constitute by vertical section and horizontal segment, its vertical section is installed at the middle part of horizontal segment, and the one end of horizontal segment connects in the gas-slag separation chamber, and the push pedal is installed to the other end, the push pedal is driven by the cylinder of its outer end, be equipped with the draw-in groove on the peripheral lateral wall of push pedal, the card is equipped with the sealing washer in the draw-in groove, and seals through the sealing washer between push pedal and the pipe inner wall.

3. The borehole blowout preventer of claim 1, wherein: the bottom ends of the gas-slag separation chamber and the slag discharge barrel are provided with horizontally arranged conveying shafts, and spiral conveying blades are distributed on the conveying shafts.