Coal mine goaf hydrogen sulfide slow release type alkaline gel preparation device

Abstract

The invention discloses a preparation device for hydrogen sulfide slow-release alkaline gel in a coal mine goaf. The preparation device comprises a main frame; the mixing equipment is filled with a gel main agent and is fixedly erected on the main frame; an alkaline load material is filled in the dry material bin, and the dry material bin is fixedly suspended on the main frame; the liquid material bin is used for filling a cross-linking solvent and is fixed on the suspension main frame; wherein the dry material bin conveys quantitative alkaline load materials into the material mixing equipment through a conveying mechanism, and the liquid material bin conveys quantitative cross-linking solvents into the material mixing equipment through a conveying pipe. Through collaborative design of the dynamic three-dimensional stirring system and the bottom active vibration pushing system, the problems of uniform mixing and material deposition in the preparation process of high-solid-content and easy-to-settle gel are successfully solved.

Description

Technical Field

[0001] This invention specifically relates to the field of hydrogen sulfide treatment technology, and more specifically to a device for preparing a slow-release alkaline gel for hydrogen sulfide in coal mine goaf areas. Background Technology

[0002] Hydrogen sulfide slow-release alkaline gels possess advantages such as good fluidity, strong encapsulation, and long-lasting neutralization effect, enabling them to neutralize... The alkaline loading material (such as calcium hydroxide) of S is uniformly and stably loaded in the three-dimensional network structure of the gel system. After the gel is injected into the goaf, it continuously releases alkaline substances during the slow degradation process, thereby achieving the purpose of long-term inhibition of hydrogen sulfide.

[0003] However, most existing gel preparation devices are based on traditional stirred tank designs. For gel systems with high solid content and large viscosity variations, centrifugal separation and stirring blind zones are easily generated. In particular, alkaline load materials with a density much greater than that of the gel main agent will quickly settle to the bottom of the tank under gravity and are difficult to be stirred evenly. This directly leads to uneven content of alkaline components in different sections of the prepared gel, which seriously affects the consistency of its sustained-release performance and neutralization effect, and brings uncertainty to the downhole treatment effect. Summary of the Invention

[0004] Therefore, this invention proposes a device for preparing a slow-release alkaline gel for hydrogen sulfide in coal mine goaf areas to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for preparing a slow-release alkaline gel for hydrogen sulfide in coal mine goaf, comprising: Main frame; The mixing equipment is filled with the gelling agent and is fixedly mounted on the main frame; The dry material silo is filled with alkaline load-bearing materials and is fixedly suspended on the main frame. And a liquid tank, which is used to fill the crosslinking solvent and is fixedly suspended on the main frame; The dry material silo transports a fixed amount of alkaline load material to the mixing equipment via a transmission mechanism, while the liquid material silo transports a fixed amount of crosslinking solvent to the mixing equipment via a transmission pipe.

[0006] Optionally, the mixing equipment includes: The tank body has a baffle sealed at the bottom, and multiple heating coils are fixed on the inner wall of the tank body at equal intervals. The paddle column is movably installed inside the tank, and multiple stirring blades are fixed at equal intervals on the paddle column. The paddle column is driven to rotate by a motor located above the tank. The lifting mechanism is fixed on the main frame and can drive motor 2 to move up and down reciprocally; And a vibration pushing mechanism, which is installed between the partition and the inner bottom wall of the tank, wherein the driving part of the vibration pushing mechanism vibrates and pushes the sedimented gel on the partition toward the inner side wall of the tank.

[0007] Optionally, the agitator blade is a downward spiral blade.

[0008] Optionally, the vibration pushing mechanism consists of a driving component and a plurality of inclined vibration pushing components, wherein the plurality of vibration pushing components are mounted in a circumferential array on the partition plate, and the plurality of vibration pushing components are all driven by the driving component to perform vibration pushing operations.

[0009] Optionally, the vibratory push assembly includes: The vibrating seat has its seal set inside the inclined hole of the partition plate; A vibrating plate, which is set on the top surface of the vibrating seat; A sliding column, one end of which is fixedly connected to a vibrating plate, and the other end of which passes through a vibrating seat and extends out, and is then fixedly connected to a pressure block; And a spring, which is wound around the side wall of a portion of the slide located in the cavity of the vibrating seat; A spring sheet is fixed on the side wall of the sliding column located in the inner cavity of the vibrating seat, and the spring sheet abuts against the bottom end of the spring.

[0010] Optionally, the drive assembly consists of a pusher block, a drive rod, and an oscillator, wherein the pusher block is in close contact with each pressure block, and the pusher block is driven to the drive end of the oscillator fixed at the bottom of the tank via a sliding column.

[0011] Optionally, the pusher block adopts a conical structure, and the end face of each pressure block that is in contact with the pusher block is set as an inclined surface.

[0012] Optionally, the lifting mechanism includes: The lifting frame has a motor fixed to its top. The screw is rotatably mounted inside the lifting frame and is driven to rotate by a motor. The slide block slides in conjunction with the lifting frame. And a nut seat, which is threadedly connected to the screw, and the nut seat is fixedly connected to the slide.

[0013] Optionally, the transmission mechanism consists of a conveying pipe, a motor, a hopper, and an auger, wherein one end of the hopper is fixedly connected to the bottom opening of the dry material silo, and the other end of the hopper is connected to the conveying pipe; One end of the conveying pipe is connected to the mixing equipment, and a motor is installed on the other end of the conveying pipe. The motor drives the auger located inside the conveying pipe.

[0014] The present invention employs the above technology and has the following beneficial effects compared with existing technologies: This invention successfully solves two core challenges in the preparation of gels with high solids content and easy sedimentation through the coordinated design of a dynamic three-dimensional stirring system and a bottom active vibration pushing system. Furthermore, during the mixing and temporary storage process after mixing, the dense alkaline load material easily settles to the bottom partition. The vibration pushing mechanism generates high-frequency vibration through an oscillator, driving the pusher, presser, and vibrating plate to continuously and subtly vibrate the gel layer on the partition. This is equivalent to constantly loosening the bottom material, preventing it from firmly agglomerating and keeping it in a suspended or semi-suspended state. Meanwhile, the vibration pushing component in the vibration pushing mechanism of the present invention has its vibration pushing direction pointing towards the inner side wall of the tank, which can effectively push the gel deposited in the central area towards the tank wall, avoiding the accumulation of gel in the bottom center to form a blind zone. Attached Figure Description

[0015] Figure 1 Schematic diagram of the structure of a device for preparing hydrogen sulfide slow-release alkaline gel in coal mine goaf. Figure 1 ; Figure 2 Schematic diagram of the structure of a device for preparing hydrogen sulfide slow-release alkaline gel in coal mine goaf. Figure 2 ; Figure 3 for Figure 1 Schematic diagram of the internal structure of the medium mixing equipment; Figure 4 for Figure 3 An enlarged schematic diagram of part A in the middle; Figure 5 for Figure 1 A schematic diagram of the internal structure of the lifting mechanism.

[0016] In the diagram: 1. Dry material silo; 2. Liquid material silo; 3. Main frame; 4. Conveying pipe; 5. Mixing equipment; 6. Motor 1; 7. Discharge hopper; 8. Lifting mechanism; 501. Motor II; 502. Tank body; 503. Agitator blade; 504. Baffle plate; 505. Heating coil; 506. Vibrating plate; 507. Spring; 508. Vibrating seat; 509. Sliding column; 510. Push block; 511. Pressing block; 801. Motor 3; 802. Lifting frame; 803. Slide; 804. Nut seat; 805. Screw. Detailed Implementation

[0017] 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.

[0018] Example: Please see the appendix Figure 1-5 This invention provides a technical solution: a device for preparing a slow-release alkaline gel for hydrogen sulfide in coal mine goaf, comprising: Main frame 3; The mixing equipment 5 is filled with the gelling agent and is fixedly mounted on the main frame 3; Dry material bin 1, which is filled with alkaline load material, is fixedly suspended on the main frame 3; And liquid tank 2, which is used to fill crosslinking solvent and is fixedly suspended on the main frame 3; The dry material silo 1 conveys a fixed amount of alkaline load material to the mixing equipment 5 through a transmission mechanism, while the liquid material silo 2 conveys a fixed amount of crosslinking solvent to the mixing equipment 5 through a transmission pipe.

[0019] In this embodiment, the mixing device 5 includes: The tank body 502 has a baffle 504 sealed at the bottom inside, and multiple heating coils 505 are fixed on the inner wall of the tank body 502 at equal intervals. The paddle column is movably installed inside the tank 502, and multiple stirring blades 503 are fixed at equal intervals on the paddle column. The paddle column is driven to rotate by a motor 501 located above the tank 502. The lifting mechanism 8 is fixed on the main frame 3 and can drive the motor 501 to move up and down reciprocally. And a vibration pushing mechanism, which is installed between the partition 504 and the inner bottom wall of the tank 502. The driving part of the vibration pushing mechanism can vibrate and push the sedimented gel on the partition 504 toward the inner side wall of the tank 502.

[0020] It should be noted that the lifting mechanism drives the entire stirring paddle column to move up and down, so that the paddle can act on material layers at different heights inside the tank 502. In particular, it can lift the heavier materials deposited at the bottom upwards and force them to exchange with the materials in the middle and upper parts, thus completely eliminating the stratification phenomenon caused by static mixing.

[0021] In this embodiment, the stirring blade 503 is a spiral blade arranged in a downward spiral.

[0022] It should be noted that the stirring blades adopt a "downward spiral setting", which generates a downward hydraulic pressure when rotating, forcing the material above the tank to flow to the bottom. Working in conjunction with the vibratory pusher, it effectively counteracts particle settling caused by gravity, ensuring the ultimate uniformity of the material in the entire mixing chamber.

[0023] In this embodiment, the vibration pushing mechanism consists of a driving component and multiple inclined vibration pushing components. The multiple vibration pushing components are mounted in a circumferential array on the partition 504, and all of the multiple vibration pushing components are driven by the driving component to perform high-frequency vibration pushing operations.

[0024] Specifically, during the mixing and temporary storage process after mixing, the dense alkaline load material is very easy to settle onto the bottom partition 504. The vibration pushing mechanism generates high-frequency vibration through the oscillator, driving the push block, pressure block and vibrating plate to continuously and finely vibrate the gel layer on the partition. This is equivalent to constantly loosening the bottom material, preventing it from firmly agglomerating and keeping it in a suspended or semi-suspended state. It should also be noted that the vibratory pusher assembly is tilted and installed in a circumferential array, and its vibration pushing direction is towards the inner wall of the tank. This can effectively push the gel deposited in the central area towards the tank wall, avoiding the accumulation of gel in the bottom center to form a blind zone. Moreover, for gels that already have a certain viscosity, vibration can effectively break up any "material arches" that may form, making the discharge process smooth and unobstructed, ensuring the complete discharge of each batch of products, and reducing waste and cleaning burden.

[0025] In this embodiment, the vibration pushing component includes: Vibration seat 508, its sealing is set in the inclined hole of partition 504; Vibrating plate 506 is disposed on the top surface of vibrating seat 508; The sliding column 509 has one end fixedly connected to the vibrating plate 506, and the other end of the sliding column 509 passes through the vibrating seat 508 and extends out, and is then fixedly connected to the pressure block 511. And spring 507, which is wound around the side wall of part of the slide 509 located in the cavity of the vibrating seat 508; A spring sheet is fixed on the side wall of the sliding column 509 located in the inner cavity of the vibrating seat 508, and the spring sheet abuts against the bottom end of the spring 507.

[0026] In this embodiment, the driving assembly consists of a push block 510, a driving rod, and an oscillator. The push block 510 is in close contact with each pressure block 511, and the push block 510 is driven to the driving end of the oscillator fixed at the bottom of the tank 502 via a sliding column 509.

[0027] In this embodiment, the push block 510 adopts a conical structure, and the end face of each pressure block 511 that is in contact with the push block 510 is set as an inclined surface.

[0028] In this embodiment, the lifting mechanism 8 includes: The lifting frame 802 has a motor 801 fixed on its top; The screw 805 is rotatably mounted inside the lifting frame 802 and is driven to rotate by the motor 801; The slide block 803 is slidably connected to the lifting frame 802; And a nut seat 804, which is threadedly connected to the screw 805, and the nut seat 804 is fixedly connected to the slide 803.

[0029] In this embodiment, the transmission mechanism consists of a conveying pipe 4, a motor 6, a hopper 7, and an auger. One end of the hopper 7 is fixedly connected to the bottom opening of the dry material bin 1, and the other end of the hopper 7 is connected to the conveying pipe 4. One end of the conveying pipe 4 is connected to the mixing equipment 5, and a motor 6 is installed on the other end of the conveying pipe 4. The motor 6 drives the auger located inside the conveying pipe 4.

[0030] 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 device for preparing a hydrogen sulfide slow-release type alkaline gel for a coal mine goaf, characterized in that, The application relates to a mixing device for mixing gel main agent and cross-linking solvent. The mixing device comprises a main frame (3), a mixing device (5) filled with gel main agent and fixedly arranged on the main frame (3), a dry material bin (1) filled with alkaline load material and fixedly arranged on the main frame (3), and a liquid material bin (2) filled with cross-linking solvent and fixedly arranged on the main frame (3), wherein the dry material bin (1) is used for conveying quantified alkaline load material into the mixing device (5) through a conveying mechanism, and the liquid material bin (2) is used for conveying quantified cross-linking solvent into the mixing device (5) through a conveying pipe. The mixing device (5) comprises a tank body (502) provided with a baffle (504) at the bottom, a plurality of heating rings (505) fixedly arranged on the inner wall of the tank body (502), a paddle column movably arranged in the tank body (502) and provided with a plurality of stirring blades (503) fixedly arranged thereon, and a motor (501) arranged above the tank body (502) and used for driving the paddle column to rotate. The mixing device (5) further comprises a lifting mechanism (8) fixedly arranged on the main frame (3) and used for driving the motor (501) to move up and down, and a vibration pushing mechanism arranged between the baffle (504) and the inner bottom wall of the tank body (502) and used for driving the deposited gel on the baffle (504) to push towards the inner wall of the tank body (502). The stirring blade (503) is in the form of a spiral paddle arranged in a downward spiral manner. The vibration pushing mechanism comprises a driving assembly and a plurality of vibration pushing assemblies arranged in an inclined manner, wherein the vibration pushing assemblies are circumferentially arranged on the baffle (504) and driven by the driving assembly to perform vibration pushing actions.

2. The coal mine goaf hydrogen sulfide slow-release type alkaline gel preparation device according to claim 1, characterized in that: The vibration pushing assembly comprises a vibration seat (508) sealingly arranged in an inclined hole of the baffle (504), a vibration plate (506) arranged on the top surface of the vibration seat (508), a slide column (509) fixedly connected with the vibration plate (506) at one end and extending out of the vibration seat (508) and then fixedly connected with a pressing block (511) at the other end, and a spring (507) wound on the side wall of the slide column (509) in the inner cavity of the vibration seat (508). The side wall of the slide column (509) in the inner cavity of the vibration seat (508) is fixedly provided with a spring sheet, and the spring sheet abuts against the bottom end of the spring (507). The driving assembly comprises a pushing block (510), a driving rod and a vibrator, wherein the pushing block (510) abuts against the pressing block (511), and the pushing block (510) is drivingly connected with the driving end of the vibrator fixedly arranged at the bottom of the tank body (502) through the slide column (509). The pushing block (510) is in the form of a conical cylinder, and the end surface of the pressing block (511) abutting against the pushing block (510) is arranged in an inclined manner. The lifting mechanism (8) comprises a lifting frame (802) fixedly provided with a motor (801) at the top, a screw rod (805) rotatably arranged in the lifting frame (802) and driven to rotate by the motor (801).

3. The coal mine goaf hydrogen sulfide slow-release type alkaline gel preparation device according to claim 2, characterized in that: ​ 4. The coal mine goaf hydrogen sulfide slow-release type alkaline gel preparation device according to claim 2, characterized in that: ​ 5. The coal mine goaf hydrogen sulfide slow-release type alkaline gel preparation device according to claim 4, characterized in that: ​ ​ ​ ​ ​ ​ 6. The coal mine goaf hydrogen sulfide slow-release type alkaline gel preparation device according to claim 5, characterized in that: ​ 7. The coal mine gob area hydrogen sulfide slow-release type alkaline gel preparation device according to claim 6, characterized in that: ​ 8. The coal mine goaf hydrogen sulfide slow-release type alkaline gel preparation device according to claim 2, characterized in that: ​ ​ ​ The sliding seat (803) is matched with the lifting frame (802) to slide; And the nut seat (804) is matched with the screw rod (805) to be screwed, and the nut seat (804) is fixedly connected with the sliding seat (803).

9. The coal mine gob area hydrogen sulfide slow-release type alkaline gel preparation device according to claim 1, characterized in that: The conveying mechanism is composed of a conveying pipe (4), a motor (6), a lower hopper (7) and an auger, wherein one end of the lower hopper (7) is fixedly communicated with the bottom opening of the dry material bin (1), and the other end of the lower hopper (7) is communicated with the conveying pipe (4); One end of the conveying pipe (4) is communicated with the mixing device (5), and the other end of the conveying pipe (4) is provided with the motor (6), and the motor (6) is drivingly connected with the auger in the conveying pipe (4).

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