Coal mine fully mechanized coal mining face hydrogen sulfide fog curtain type alkalinity neutralization device and control method

Abstract

The invention discloses a coal mine fully-mechanized coal mining face hydrogen sulfide fog curtain type alkalinity neutralization device which comprises two driving beam mechanisms symmetrically installed on the coal seam top of a fully-mechanized coal mining area; the movable base is mounted between the two driving beam mechanisms and is cooperatively driven by the two driving beam mechanisms to slide; the walking driving mechanism is mounted on the top surface of the movable base; and the agent atomization device is driven by the walking driving mechanism to slide in a reciprocating mode, and the agent atomization device conducts intermittent atomization agent spraying on hydrogen sulfide gas in the fully mechanized coal mining working area. The invention further provides a control method of the hydrogen sulfide fog curtain type alkalinity neutralization device for the fully mechanized coal mining face of the coal mine. According to the invention, the large-range transverse moving capability and the precise intermittent opening and closing function of the medicament spraying mechanism are combined, and hydrogen sulfide gas on a working surface is efficiently neutralized and removed in an energy-saving manner by forming a moving alkaline neutralization fog curtain, so that the working environment of an underground coal mine is remarkably improved, and the safety production is guaranteed.

Description

Technical Field

[0001] This invention specifically relates to the field of hydrogen sulfide control technology, and more specifically to a hydrogen sulfide fog-type alkaline neutralization device and control method for fully mechanized coal mining faces. Background Technology

[0002] Hydrogen sulfide gas in fully mechanized coal mining faces poses a serious threat to the health of workers, corrodes production equipment, and affects safe production; therefore, effective control is essential. Currently, the widely used method is to spray alkaline neutralizing agents onto the working face to neutralize the hydrogen sulfide. However, the existing spray control technology increasingly contradicts the high-efficiency and intensive requirements of fully mechanized mining processes, mainly due to the following technical drawbacks: 1. Existing technologies mostly adopt a continuous spraying mode, that is, once the spraying device is turned on, it sprays pesticides continuously throughout the entire working stroke. This extensive treatment method results in a large amount of pesticides being sprayed into areas where there is no high risk of hydrogen sulfide accumulation (such as mined areas or well-ventilated areas), causing a great waste of pesticides. 2. Continuous spraying will introduce excessive moisture. This unreacted solution will fall directly onto the coal below, increasing the moisture content of the raw coal and affecting its subsequent storage and use quality. Summary of the Invention

[0003] Therefore, this invention proposes a hydrogen sulfide fog-type alkaline neutralization device and control method for fully mechanized coal mining faces to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: A hydrogen sulfide fog curtain alkaline neutralization device for fully mechanized coal mining faces includes: There are two drive beam mechanisms, which are symmetrically installed on the top of the coal seam in the fully mechanized mining area; The movable base is installed between two drive beam mechanisms and is driven by the two drive beam mechanisms to slide. The walking drive mechanism is installed on the top surface of the mobile base; And a chemical atomizing device, which is driven by a walking drive mechanism to slide back and forth, and the chemical atomizing device can perform intermittent atomized spraying of hydrogen sulfide gas in the fully mechanized mining area.

[0005] Optionally, the drug atomizing device includes: The slide block engages with the slide rail on the movable base and is driven to slide by the travel drive mechanism; The drive assembly is mounted on the slide. The spraying mechanism is connected to the drug supply equipment via a hose, and the spraying mechanism is driven by a drive component to intermittently activate the spraying mechanism.

[0006] Optionally, the spraying mechanism includes: The cylindrical shell has a valve seat fixed at its top, and an atomizing nozzle is sealed and installed at the top opening of the valve seat. A ring seat is sealed and installed inside the cylindrical shell, and multiple through-holes are provided on the surface of the ring seat; An internally threaded ring is installed inside the cylinder shell and located below the ring seat; Threaded column, threaded connection with internal threaded ring; The valve core is located inside the valve seat and is sealed in conjunction with the lower cavity of the valve seat. The valve core is fixedly connected to one end of the drive rod, and the other end of the drive rod passes through the valve seat and the ring seat in sequence, and is then rotatably connected to the internal threaded ring. A spring is wound around the side wall of the drive rod located between the valve seat and the ring seat.

[0007] Optionally, the bottom wall of the valve seat is provided with a plurality of through holes that communicate with the lower cavity of the valve seat.

[0008] Optionally, a limiting ring is provided in the central cavity of the ring seat, and the limiting ring is fixedly sleeved on the drive rod.

[0009] Optionally, the drive assembly consists of a servo motor, a large gear, a small gear, and a telescopic rod. The large gear and the small gear can be rotatably mounted on the back of the slide, and the large gear and the small gear mesh with each other for transmission. The small gear is driven to rotate by the servo motor, and the large gear is fixedly connected to the threaded column through the telescopic rod.

[0010] Optionally, the walking drive mechanism includes: Servo motor 2 is mounted on the left end of the movable base, and the drive end of servo motor 2 is fixed with an active grooved wheel; The driven grooved wheel is rotatably mounted on the right end of the movable base, and a transmission chain is connected between the driven grooved wheel and the driving grooved wheel. The fastener is fixedly attached to the drive chain. And a tie rod, one end of which is fixedly connected to a binding member, and the other end of the tie rod passes through a tie tube on a slide and is fixedly connected to a limiting block.

[0011] Optionally, the drive beam mechanism includes: The top plate has two symmetrically arranged bearing seats fixed on its surface; A screw is rotatably connected between the two bearing seats, and the screw is driven by a servo motor. A limiting rod is fixedly connected between the two bearing seats; A nut seat is threadedly connected to the screw, and the nut seat is fixedly connected to the slide. And slip rings, two of which are provided and slide in conjunction with the limit rod, and each slip ring is fixed on the slide block.

[0012] This invention also provides a control method for a hydrogen sulfide fog-type alkaline neutralization device in a fully mechanized coal mining face, comprising the following steps: Step 1: Based on the concentrated area of ​​hydrogen sulfide gas, drive the mobile base to slide to the designated area; Step 2: Start the second servo motor to drive the drug atomizing device to move back and forth at a uniform speed; Step 3: The drug supply equipment starts supplying liquid, and at the same time, the servo motor starts to drive the spraying mechanism to perform intermittent atomized spraying.

[0013] The present invention employs the above technology and has the following beneficial effects compared with existing technologies: The spraying mechanism of this invention does not spray continuously, but sprays on demand according to design requirements, achieving precise control of the on and off states. On the one hand, spraying only at the required time and location avoids ineffective consumption of chemicals and reduces operating costs. On the other hand, excessive moisture can affect coal quality, and intermittent spraying can minimize the moisture falling into the coal and ensure coal quality. Attached Figure Description

[0014] Figure 1 A side view of the structure of a hydrogen sulfide fog curtain alkaline neutralization device in a fully mechanized coal mining face; Figure 2 A schematic diagram of the structure of a hydrogen sulfide fog curtain alkaline neutralization device in a fully mechanized coal mining face, viewed from below. Figure 3 A top view schematic diagram of a hydrogen sulfide fog curtain alkaline neutralization device in a fully mechanized coal mining face; Figure 4 A schematic diagram of the spray mechanism in a hydrogen sulfide fog-type alkaline neutralization device for a fully mechanized coal mining face; Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle.

[0015] In the diagram: 1. Servo motor 1; 2. Top plate; 3. Slip ring; 4. Nut seat; 5. Bearing seat; 6. Agent atomizing device; 7. Limiting rod; 8. Screw; 601. Movable base; 602. Servo motor II; 603. Binding rod; 604. Binding component; 605. Transmission chain; 606. Driven grooved wheel; 607. Servo motor III; 608. Slide; 609. Limiting block; 610. Large gear; 611. Small gear; 612. Atomizing nozzle; 613. Cylinder shell; 614. Ring seat; 615. Internal threaded ring; 616. Directional telescopic rod; 617. Threaded column; 618. Limiting ring; 619. Spring; 620. Valve core; 621. Drive rod; 622. Valve seat. Detailed Implementation

[0016] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] Example 1: Please see the appendix Figure 1-5 This invention provides a hydrogen sulfide fog-type alkaline neutralization device for fully mechanized coal mining faces, comprising: There are two drive beam mechanisms, which are symmetrically installed on the top of the coal seam in the fully mechanized mining area; The movable base 601 is installed between two drive beam mechanisms and is driven by the two drive beam mechanisms to slide. The walking drive mechanism is installed on the top surface of the mobile base 601; And the atomizing device 6, driven by the walking drive mechanism to slide back and forth, and the atomizing device 6 performs intermittent atomized spraying of hydrogen sulfide gas in the fully mechanized mining area.

[0018] In this embodiment, the drug atomizing device 6 includes: The slide block 608 is slidably connected to the slide rail on the movable base 601 and is driven to slide by the walking drive mechanism; The drive assembly is mounted on the slide 608; The spraying mechanism is connected to the drug supply equipment via a hose, and the spraying mechanism is driven by a drive component to intermittently activate the spraying mechanism.

[0019] In this embodiment, the spraying mechanism includes: The cylindrical shell 613 has a valve seat 622 fixed at its top, and an atomizing nozzle 612 is sealed and installed at the top opening of the valve seat 622. The ring seat 614 is sealed and installed inside the cylindrical shell 613, and multiple through ports are provided on the surface of the ring seat 614. The internal threaded ring 615 is installed inside the cylindrical shell 613 and is located below the ring seat 614; The threaded post 617 is threaded to match the internal threaded ring 615. The valve core 620 is disposed inside the valve seat 622 and can cooperate with the lower cavity of the valve seat 622 to seal. The valve core 620 is fixedly connected to one end of the drive rod 621. The other end of the drive rod 621 passes through the valve seat 622 and the ring seat 614 in sequence, and is rotatably connected to the internal threaded ring 615. A spring 619 is wound on the side wall of the part of the drive rod 621 located between the valve seat 622 and the ring seat 614.

[0020] Specifically, the threaded engagement between the threaded post 617 and the internal threaded ring 615 converts the rotational motion into the linear motion of the valve core 620 and the drive rod 621, that is, When in the open state, the threaded column 617 rotates forward, pushing the drive rod 621 upward, overcoming the spring force, and causing the valve core 620 to leave the valve seat 622, opening the channel. The liquid medicine enters the lower cavity of the valve seat 622 through the perforation, and then is sprayed out from the atomizing nozzle. When closed, the threaded post 617 reverses, and the drive rod 621 moves downward with the assistance of the spring force. The valve core 620 fits tightly against the valve seat 622, cutting off the flow of the liquid medicine, and the spraying stops immediately.

[0021] In other words, the spraying mechanism does not spray continuously, but sprays on demand according to design requirements, achieving precise control of the on and off states. On the one hand, spraying only at the required time and location avoids ineffective consumption of chemicals and reduces operating costs. On the other hand, excessive moisture can affect coal quality, and intermittent spraying can minimize the moisture falling into the coal and ensure coal quality.

[0022] In this embodiment, the bottom wall of the valve seat 622 is provided with a plurality of through holes that communicate with the lower cavity of the valve seat 622.

[0023] In this embodiment, a limiting ring 618 is provided in the central cavity of the ring seat 614, and the limiting ring 618 is fixedly sleeved on the drive rod 621.

[0024] In this embodiment, the drive assembly consists of a servo motor 607, a large gear 610, a small gear 611, and a directional telescopic rod 616. Both the large gear 610 and the small gear 611 are rotatably mounted on the back of the slide 608, and the large gear 610 and the small gear 611 mesh and drive each other. The small gear 611 is driven to rotate by the servo motor 607, and the large gear 610 is fixedly connected to the threaded post 617 through the directional telescopic rod 616.

[0025] In this embodiment, the walking drive mechanism includes: Servo motor 2 602 is mounted on the left end of the movable base 601, and the drive end of servo motor 2 602 is fixed with an active groove wheel; Driven groove wheel 606 is rotatably mounted on the right end of movable base 601, and a transmission chain 605 is connected between driven groove wheel 606 and driving groove wheel; The fastener 604 is fixedly fastened to the transmission chain 605; And a tie rod 603, one end of which is fixedly connected to a binding member 604, and the other end of the tie rod 603 passes through a tie tube on a slide block 608 and is fixedly connected to a limiting block 609.

[0026] In this embodiment, the driving beam mechanism includes: Top plate 2, on which two symmetrically arranged bearing seats 5 are fixed; The screw 8 is rotatably connected between two bearing seats 5, and the screw 8 is driven by a servo motor 1; The limiting rod 7 is fixedly connected between the two bearing seats 5; Nut seat 4 is threadedly connected to screw 8, and nut seat 4 is fixedly connected to slide 608; And slip rings 3, two of them are provided, and they slide together with the limit rod 7, and each slip ring 3 is fixed on the slide block 608.

[0027] Example 2: This invention also provides a control method for a hydrogen sulfide fog-type alkaline neutralization device in a fully mechanized coal mining face, which is implemented using the hydrogen sulfide fog-type alkaline neutralization device in the fully mechanized coal mining face described in Example 1, and includes the following steps: Step 1: Based on the concentrated area of ​​hydrogen sulfide gas, drive the movable base 601 to slide to the designated area; Step 2: Start the servo motor 602 to drive the drug atomizing device 6 to move back and forth at a uniform speed; Step 3: The drug supply equipment starts supplying liquid, and at the same time, the servo motor 3607 starts to drive the spraying mechanism to perform intermittent atomized drug spraying.

[0028] It should be noted that the device of the present invention combines a wide range of lateral movement capabilities with the precise intermittent opening and closing function of the agent spraying mechanism. By forming a moving "alkaline neutralizing fog curtain", it efficiently and energy-savingly neutralizes and removes hydrogen sulfide gas from the working face, significantly improving the working environment in coal mines and ensuring safe production.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hydrogen sulfide fog curtain type alkaline neutralization device for fully mechanized coal mining faces, characterized in that, include: There are two drive beam mechanisms, which are symmetrically installed on the top of the coal seam in the fully mechanized mining area; The movable base (601) is installed between two drive beam mechanisms and is driven by the two drive beam mechanisms to slide. A walking drive mechanism is installed on the top surface of the mobile base (601); And the atomizing device (6) is driven by the walking drive mechanism to slide back and forth, and the atomizing device (6) performs intermittent atomized spraying of hydrogen sulfide gas in the fully mechanized mining area.

2. The hydrogen sulfide fog curtain alkaline neutralization device for fully mechanized coal mining faces according to claim 1, characterized in that: The drug atomizing device (6) includes: The slide block (608) slides in conjunction with the slide rail on the movable base (601) and is driven to slide by the walking drive mechanism; The drive assembly is mounted on the slide (608); The spraying mechanism is connected to the drug supply equipment via a hose, and the spraying mechanism is driven by a drive component to intermittently activate the spraying mechanism.

3. The hydrogen sulfide fog curtain alkaline neutralization device for fully mechanized coal mining faces according to claim 2, characterized in that: The spraying mechanism includes: The cylindrical shell (613) has a valve seat (622) fixed at its top, and an atomizing nozzle (612) is sealed at the top opening of the valve seat (622). A ring seat (614) is sealed and installed inside the cylindrical shell (613), and multiple through holes are provided on the surface of the ring seat (614); An internal threaded ring (615) is installed inside the cylindrical shell (613) and located below the ring seat (614); The threaded column (617) is threaded to the internal threaded ring (615); The valve core (620) is located inside the valve seat (622) and can cooperate with the lower cavity of the valve seat (6252) to seal. The valve core (620) is fixedly connected to one end of the drive rod (621), and the other end of the drive rod (621) passes through the valve seat (622) and the ring seat (614) in sequence, and is then rotatably connected to the internal threaded ring (615). A spring (619) is wound on the side wall of the drive rod (621) located between the valve seat (622) and the ring seat (614).

4. The hydrogen sulfide fog curtain alkaline neutralization device for fully mechanized coal mining faces according to claim 3, characterized in that: The bottom wall of the valve seat (622) is provided with a plurality of through holes that communicate with the lower cavity of the valve seat (622).

5. The hydrogen sulfide fog curtain alkaline neutralization device for fully mechanized coal mining faces according to claim 4, characterized in that: A limiting ring (618) is provided in the middle cavity of the ring seat (614), and the limiting ring (618) is fixedly sleeved on the drive rod (621).

6. The hydrogen sulfide fog curtain alkaline neutralization device for fully mechanized coal mining faces according to claim 3, characterized in that: The drive assembly consists of a servo motor (607), a large gear (610), a small gear (611), and a telescopic rod (616). The large gear (610) and the small gear (611) are rotatably mounted on the back of the slide (608), and the large gear (610) and the small gear (611) mesh and drive each other. The small gear (611) is driven to rotate by the servo motor (607), and the large gear (610) is fixedly connected to the threaded column (617) through the telescopic rod (616).

7. The hydrogen sulfide fog curtain alkaline neutralization device for fully mechanized coal mining faces according to claim 2, characterized in that: The walking drive mechanism includes: Servo motor 2 (602) is mounted on the left end of the movable base (601), and the drive end of servo motor 2 (602) is fixed with an active groove wheel; The driven groove wheel (606) is rotatably mounted on the right end of the movable base (601), and a transmission chain (605) is connected between the driven groove wheel (606) and the driving groove wheel. The fastener (604) is fixedly fastened to the transmission chain (605); And a tie rod (603), one end of which is fixedly connected to a binding member (604), and the other end of the tie rod (603) passes through a tie tube on a slide (608) and is fixedly connected to a limiting block (609).

8. The hydrogen sulfide fog curtain alkaline neutralization device for fully mechanized coal mining faces according to claim 1, characterized in that: The drive beam mechanism includes: Top plate (2), on which two symmetrically arranged bearing seats (5) are fixed; The screw (8) is rotatably connected between the two bearing seats (5), and the screw (8) is driven by a servo motor (1); The limiting rod (7) is fixedly connected between the two bearing seats (5); Nut seat (4) is threadedly connected to screw (8), and nut seat (4) is fixedly connected to slide (608); And slip rings (3), two of which are provided and slide in conjunction with the limiting rod (7), and each slip ring (3) is fixed on the slide block (608).

9. The control method for the hydrogen sulfide fog-type alkaline neutralization device in a fully mechanized coal mining face as described in any one of claims 1-8, characterized in that, Includes the following steps: Step 1: Based on the concentrated area of ​​hydrogen sulfide gas, drive the movable base (601) to slide to the designated area; Step 2: Start the servo motor 2 (602) to drive the drug atomizing device (6) to move back and forth at a uniform speed; Step 3: The drug supply equipment starts supplying liquid, and at the same time, servo motor three (607) starts to drive the spraying mechanism to perform intermittent atomized drug spraying.

Images