CN115467638A - Rapid hole sealing device and hole sealing method for coal mine underground gas extraction drill hole - Google Patents

Abstract

The invention discloses a quick hole sealing device for a coal mine underground gas extraction drill hole, which comprises an underground supporting plate, wherein an extension hole is formed in the center of the upper end face of the underground supporting plate, supporting oil cylinders are hinged at the four corners of the lower end face of the underground supporting plate through rotating seats, and self-locking universal wheels are fixedly arranged at the lower ends of the four supporting oil cylinders. The invention also discloses a hole sealing method of the device for quickly sealing the coal mine underground gas extraction drill hole. According to the invention, automatic hole sealing can be carried out only by calculating the hole sealing material amount required by hole sealing in advance, so that the operation is simple, manpower and material resources are saved, and the hole sealing efficiency is high; the cement mortar and the polyurethane are matched with each other for hole sealing, so that the hole sealing effect is good, no leakage is generated, and the safety and the stability are strong; the method can be suitable for various terrains when hole sealing is carried out, and has strong applicability.

Description

A rapid hole sealing device and hole sealing method for underground gas drainage drilling in coal mines

technical field

The invention relates to the technical field of gas drainage in coal mines, in particular to a rapid hole sealing device and a hole sealing method for underground gas drainage in coal mines.

Background technique

In the process of coal mine mining, it is inevitable to encounter potential safety hazards caused by gas. In order to fundamentally solve this problem, mining personnel often use gas drainage technology to eliminate the safety hazards caused by gas. In this process, technicians are required to be aware of the importance of gas drainage, and to improve the gas drainage effect on the basis of mastering the key technology of hole sealing. The amount of gas drainage is closely related to the sealing quality of the drainage borehole.

At present, the sealing effect of drainage drilling is poor, the sealing time is long, and the extraction concentration is low, which are common problems in coal seam gas drainage, and the entire sealing process requires a lot of manpower and funds.

Contents of the invention

In order to solve the above-mentioned technical problems, the object of the present invention is to provide a quick hole sealing device and a hole sealing method for underground gas drainage drilling in coal mines.

To achieve the above object, the present invention provides the following technical solutions:

A rapid hole sealing device for underground gas drainage drilling in coal mines, comprising a lower support plate, an extension hole is opened at the center of the upper end surface of the lower support plate, and the four corners of the lower end surface of the lower support plate are hinged and set by rotating seats There are supporting oil cylinders, and the lower ends of the four supporting oil cylinders are all fixedly equipped with self-locking universal wheels;

Both sides of the upper end surface of the lower support plate are fixedly equipped with electric slide rails, the upper end surfaces of the two electric slide rails are all slidably provided with electric sliders, and the upper ends of the two electric sliders are fixedly provided with upper A movable plate, a PLC processor and a timer are respectively fixed inside one side of the upper movable plate, a control panel is fixedly arranged on one side of the front end of the upper movable plate, and the upper surface of the upper movable plate is respectively fixed on both sides. Set No. 1 sealing mechanism and No. 2 sealing mechanism;

Both the No. 1 sealing mechanism and the No. 2 sealing mechanism include a storage tank and an extraction pump. The output end and the input end of the extraction pump are respectively fixedly provided with a No. 1 pipeline and a No. 2 pipeline. A flow meter is fixedly installed on the pipe, and a protective shell is fixedly installed at the center of the lower end surface of the storage tank, and a stirring motor is fixedly installed inside the protective shell, and the output end of the stirring motor passes through the protective shell and the storage tank to the Stirring blades are fixedly arranged inside the storage tank.

Preferably, both sides of the lower end surface of the storage tank are fixedly provided with supporting legs, and the supporting legs, the protective shell and the extraction pump are all fixedly connected with the upper movable plate.

Preferably, the lower end of the No. 1 pipe passes through the upper movable plate and the extension hole to the lower end of the lower supporting plate.

Preferably, the control panel and the timer are located on the same side of the upper movable panel.

Preferably, an observation window is fixedly arranged at the center of the front side of the storage tank, and the end of the No. 2 pipeline away from the extraction pump is connected to the discharge port of the storage tank.

Preferably, the PLC processor is electrically connected to the control panel, the timer, the flow meter, the pump and the stirring motor respectively.

Preferably, a sealing plate is fixedly arranged at the lower end of the No. 1 pipeline of the No. 2 sealing mechanism.

Preferably, the storage tanks of the No. 1 sealing mechanism and the No. 2 sealing mechanism are respectively filled with cement mortar and polyurethane.

A hole sealing method of a quick hole sealing device for underground gas drainage drilling in coal mines, which is realized by using the above-mentioned quick hole sealing device for underground gas drainage drilling in coal mines, and specifically includes the following steps:

First calculate the quality data of cement mortar and polyurethane required by the mine, and then adjust the position through the expansion and contraction of the supporting cylinder and the movement of the upper movable plate driven by the electric slider, so that the No. 1 sealing mechanism and the No. 2 pipe of the No. 2 sealing mechanism Align the mine mouth respectively, and then put the required quality cement mortar and polyurethane raw materials into the storage tanks of the No. 1 sealing mechanism and the No. The extraction pump of the No. 1 sealing mechanism and the stirring motor are started and shut down at regular intervals, and then the extraction pumps of the No. 1 sealing mechanism and the No. 2 sealing mechanism are started in turn to inject cement mortar and polyurethane raw materials into the mine for sealing. operate.

Furthermore, during the hole sealing operation, it is first necessary to insert the No. 1 pipeline of the No. 2 sealing mechanism equipped with polyurethane into the mine hole, then inject the polyurethane raw material through the No. 1 pipeline, and use the sealing plate to seal it. After the polyurethane is solidified, cut off the No. 1 pipeline fixed with the polyurethane at the bottom, and then inject cement mortar through the No. 1 pipeline of the No. 1 sealing mechanism for sealing.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. The present invention provides a fast hole sealing device and method for drilling underground gas drainage in coal mines. When the device is in use, it only needs to calculate the amount of sealing material required for hole sealing in advance to perform automatic sealing. The hole is easy to operate, saves manpower and material resources, and has higher sealing efficiency.

2. The present invention provides a quick hole sealing device and method for drilling underground gas drainage in coal mines. The cement mortar and polyurethane in the tank cooperate with each other to seal the hole, the sealing effect is better, no leakage will occur, and the safety and stability are stronger.

3. The present invention provides a rapid hole sealing device and method for drilling underground gas drainage in coal mines. When the device is in use, the inclination can be adjusted through the supporting cylinder, and the upper movable plate can be adjusted through the electric slider and the electric slide seat. position, so that the device can be applied to various terrains when sealing holes, and the applicability is stronger.

Description of drawings

Fig. 1 is the structure schematic diagram of quick hole sealing device for gas drainage in coal mine of the present invention;

Fig. 2 is the cross-sectional schematic view of the fast hole sealing device for gas drainage in coal mines of the present invention;

Fig. 3 is the connection schematic diagram of PLC controller of the present invention and control panel, timer, flow meter, extracting pump and stirring motor;

Fig. 4 is a schematic front view of No. 1 sealing mechanism of the present invention;

Fig. 5 is a front sectional view of No. 1 sealing mechanism of the present invention;

Fig. 6 is a schematic diagram of the axial side of the lower support plate of the present invention.

In the figure: 1. No. 1 sealing mechanism; 2. No. 2 sealing mechanism; 3. Control panel; 4. Electric slider; 5. Rotary seat; 6. Support cylinder; 7. Self-locking universal wheel; 8. Lower support plate; 9, electric slide rail; 10, upper movable plate; 11, timer; 12, PLC processor; 13, extended hole; 14, sealing plate; 101, storage tank; 102, support leg; 103, Protective shell; 104, No. 1 pipeline; 105, extraction pump; 106, flow meter; 107, observation window; 108, stirring blade; 109, stirring motor; 110, No. 2 pipeline.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Embodiment one

Referring to Fig. 1-Fig. 6, a quick hole sealing device for underground gas drainage drilling in a coal mine comprises a lower support plate 8, an extension hole 13 is opened at the center of the upper end surface of the lower support plate 8, and the four corners of the lower end surface of the lower support plate 8 are The support cylinders 6 are hinged at each place through the rotating seat 5. The support cylinders 6 play a supporting role and can also adjust the inclination. The lower ends of the four support cylinders 6 are all fixedly equipped with self-locking universal wheels 7. The universal wheel 7 makes the device move more conveniently;

Both sides of the upper end surface of the lower support plate 8 are fixedly equipped with electric slide rails 9, and the upper end surfaces of the two electric slide rails 9 are all slidably provided with electric sliders 4, which are used for sliding on the electric slide rails 9 through the electric sliders 4. In order to adjust the position of the upper movable plate 10, it is convenient to align with the mine, the upper ends of the two electric sliders 4 are fixedly provided with an upper movable plate 10, and the interior of one side of the upper movable plate 10 is respectively fixed with a PLC processor 12 and a timer 11, A control panel 3 is fixedly arranged on one side of the front end of the upper movable plate 10, and a No. 1 sealing mechanism 1 and a No. 2 hole sealing mechanism 2 are respectively fixedly arranged on both sides of the upper end surface of the upper movable plate 10;

Referring to Figures 4-5, the No. 1 sealing mechanism 1 and the No. 2 sealing mechanism 2 both include a storage tank 101 and an extraction pump 105, and the output and input ends of the extraction pump 105 are respectively fixedly provided with a No. 1 pipeline 104 and a No. 2 pipeline. The No. 1 pipeline 110 and the No. 2 pipeline 110 are fixed with a flow meter 106, and the center of the lower end surface of the storage tank 101 is fixed with a protective shell 103. The inside of the protective shell 103 is fixed with a stirring motor 109. The output of the stirring motor 109 The end passes through the protective shell 103 and the storage tank 101 to the interior of the storage tank 101 and is fixedly equipped with a stirring blade 108. By starting the stirring motor 109, the stirring blade 108 is rotated so that the cement mortar or polyurethane is mixed more evenly, which is convenient to flow out and not easy to solidify.

Both sides of the lower end surface of the storage tank 101 are fixedly provided with support legs 102, and the support legs 102 are used to further enhance the stability. The lower end of No. 1 pipeline 104 passes through the upper movable plate 10 and the extension hole 13 to the lower end of the lower support plate 8 .

The control panel 3 and the timer 11 in the quick hole sealing device for underground gas drainage in coal mines of the present invention are located on the same side of the upper movable plate 10, and an observation window 107 is fixedly arranged at the center of the front side of the storage tank 101. Through the observation window 107 is convenient to observe the internal situation, and the end of the No. 2 pipeline 110 away from the extraction pump 105 is connected with the discharge port of the storage tank 101. Referring to Fig. The pump 105 is electrically connected to the stirring motor 109. The No. 1 sealing mechanism 1 and the No. 2 sealing mechanism 2 have the same structure, and the difference is that the lower end of the No. 1 pipeline 104 of the No. The orifice plate 14 plays the role of sealing to prevent the polyurethane from overflowing. The storage tanks 101 of the No. 1 sealing mechanism 1 and the No. 2 sealing mechanism 2 are respectively equipped with cement mortar and polyurethane, and the holes are sealed under the cooperation of the cement mortar and polyurethane. , making the sealing more firm and not easy to leak.

Embodiment two

A hole sealing method of a quick hole sealing device for underground gas drainage drilling in a coal mine, which is realized by using the quick hole sealing device for underground gas drainage drilling in a coal mine in Embodiment 1, and specifically includes the following steps:

First calculate the quality data of cement mortar and polyurethane required by the mine, and then adjust the position through the expansion and contraction of the support cylinder 6 and the movement of the upper movable plate 10 driven by the electric slider 4, so that the No. 1 sealing mechanism 1 and the No. 2 sealing mechanism No. 2 pipeline 110 of 2 is respectively aligned with the mine mouth, and then put cement mortar and polyurethane raw materials of required quality into the storage tanks 101 of No. 1 sealing mechanism 1 and No. 2 sealing mechanism 2 respectively, and use the control panel 3 to coordinate The timer 11 starts and shuts off the extraction pump 105 and the stirring motor 109 of the No. 1 sealing mechanism 1 and the No. The extraction pump 105 injects the cement mortar and the polyurethane raw material into the mine respectively to carry out the hole sealing operation.

During the hole sealing operation, firstly, the No. 1 pipeline 104 of the No. 2 sealing mechanism 2 equipped with polyurethane needs to be inserted into the mine hole, then the polyurethane raw material is injected into the No. 1 pipeline 104, and the hole sealing plate 14 is used for sealing. After the polyurethane is solidified, cut off the No. 1 pipeline 104 fixed with the polyurethane below, and then inject cement mortar through the No. 1 pipeline 104 of the No. 1 sealing mechanism 1 for sealing.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes, modifications and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (10)

1. The quick hole sealing device for the coal mine underground gas extraction drill hole is characterized by comprising a lower supporting plate, wherein an extension hole is formed in the center of the upper end face of the lower supporting plate, supporting oil cylinders are hinged to the four corners of the lower end face of the lower supporting plate through rotating seats, and self-locking universal wheels are fixedly arranged at the lower ends of the four supporting oil cylinders;

electric slide rails are fixedly arranged on two sides of the upper end face of the lower supporting plate, electric slide blocks are arranged on the upper end faces of the two electric slide rails in a sliding mode, an upper movable plate is fixedly arranged at the upper ends of the two electric slide blocks, a PLC (programmable logic controller) processor and a timer are fixedly arranged in one side of the upper movable plate respectively, a control panel is fixedly arranged on one side of the front end of the upper movable plate, and a first hole sealing mechanism and a second hole sealing mechanism are fixedly arranged on the upper end face of the upper movable plate close to the two sides respectively;

a hole sealing mechanism and No. two hole sealing devices all include the storage jar and take out from the pump, take out output and the input of being provided with a pipeline and No. two pipelines from the pump respectively fixedly, the fixed flowmeter that is provided with on the pipe shaft of No. two pipelines, the fixed protective case that is provided with of lower terminal surface center department of storage jar, the fixed agitator motor that is provided with in inside of protective case, agitator motor's output runs through protective case and storage jar and leads to the fixed stirring vane that is provided with in inside of storage jar.

2. The device for rapidly sealing the underground gas extraction borehole of the coal mine according to claim 1, wherein supporting legs are fixedly arranged on two sides of the lower end surface of the storage tank, and the supporting legs, the protective shell and the extraction pump are fixedly connected with an upper movable plate.

3. The device for rapidly sealing the coal mine underground gas extraction borehole according to claim 1, wherein the lower end of the first pipeline penetrates through the upper movable plate and the extension hole to reach the lower end of the lower support plate.

4. The device for rapidly sealing the gas extraction borehole in the underground coal mine according to claim 1, wherein the control panel and the timer are located on the same side of the upper movable plate.

5. The device for rapidly sealing the coal mine underground gas extraction drill hole according to claim 1, wherein an observation window is fixedly arranged at the center of the front side of the storage tank, and one end, far away from the extraction pump, of the second pipeline is connected with a discharge hole of the storage tank.

6. The device for rapidly sealing the underground coal mine gas extraction borehole according to claim 1, wherein the PLC processor is electrically connected with a control panel, a timer, a flowmeter, a pump and a stirring motor respectively.

7. The device for rapidly sealing the coal mine underground gas extraction borehole according to claim 1, characterized in that a hole sealing plate is fixedly arranged at the lower end of the first pipeline of the second hole sealing mechanism.

8. The device for quickly sealing the coal mine underground gas extraction drill hole according to claim 1, wherein cement mortar and polyurethane are respectively filled in the storage tanks of the first hole sealing mechanism and the second hole sealing mechanism.

9. A hole sealing method of a coal mine underground gas extraction drill hole rapid hole sealing device is realized by adopting the coal mine underground gas extraction drill hole rapid hole sealing device according to any one of claims 1-8, and specifically comprises the following steps:

firstly, calculating quality data of cement mortar and polyurethane required by a mine, then, moving and adjusting the position of an upper movable plate through the extension of a supporting oil cylinder and the driving of an electric slide block, so that a second pipeline of a first hole sealing mechanism and a second hole sealing mechanism are respectively aligned to a mine opening, then, respectively putting cement mortar and polyurethane raw materials with required quality into storage tanks of the first hole sealing mechanism and the second hole sealing mechanism, starting and closing a drawing pump and a stirring motor of the first hole sealing mechanism and the second hole sealing mechanism at regular time by using a control panel and a timer, and then, sequentially starting the drawing pumps of the first hole sealing mechanism and the second hole sealing mechanism to respectively inject the cement mortar and the polyurethane raw materials into the mine for hole sealing operation.

10. The method for sealing the hole of the rapid hole sealing device for the gas extraction borehole in the coal mine according to claim 9, wherein in the hole sealing operation, a first pipeline of a second hole sealing mechanism filled with polyurethane is firstly inserted into the borehole, then polyurethane raw materials are injected by the first pipeline, the first pipeline fixed with the polyurethane is blocked by a hole sealing plate, after the polyurethane is solidified, the first pipeline fixed with the polyurethane below is cut off, and cement mortar is injected by the first pipeline of the first hole sealing mechanism to be blocked.

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