Crawler-type water-coal safe collection and outburst separation device

Abstract

A crawler-type safe water-coal collecting and outburst separating device comprises a crawler and a collecting box arranged on the crawler, a partition plate is arranged in an inner cavity of the collecting box, the partition plate divides the inner cavity of the collecting box into a front cavity and a rear cavity, and the front cavity and the rear cavity are a high-pressure outburst pulverized coal collecting chamber located at the rear end and a normal-pressure water-coal collecting chamber located at the front end respectively. Wherein the top of the end wall of the normal-pressure water-coal collecting chamber is provided with a water-coal inlet and a gas drainage port, and the bottom of the end wall of the normal-pressure water-coal collecting chamber is provided with a water-coal discharging bin; a high-pressure pulverized coal inlet is formed in the position, corresponding to the jet flow position of the water-coal inlet, of the partition plate, a coal discharging auger is arranged at the bottom of the high-pressure outburst pulverized coal collecting chamber, a pulverized coal outlet is formed in the side wall of the high-pressure outburst pulverized coal collecting chamber, and a gas drainage opening is formed in the top wall of the high-pressure outburst pulverized coal collecting chamber. When gas outburst occurs suddenly, dry pulverized coal jetted out by high pressure can be collected into the high-pressure outburst pulverized coal collecting chamber in a centralized manner, so that the dry pulverized coal is separated from water and coal, and the problems of collection of the dry pulverized coal and blockage of the box body are solved.

Description

Technical Field

[0001] This utility model relates to the field of coal mine equipment technology, specifically to a tracked water-coal safety collection and outburst separation device. Background Technology

[0002] Coal mine gas control measures mainly focus on gas extraction, and the effectiveness of gas extraction hinges on the permeability of the coal seam. Increasing the permeability of coal seam boreholes primarily involves measures such as hydraulic flushing for coal unloading, hydraulic slotting for coal unloading, and fracturing. These measures produce large amounts of coal-water mixtures. Currently, coal mines routinely use coal-water separation equipment to collect and separate the discharged coal-water mixture. However, gas outbursts still occasionally occur, causing dry coal dust carried by the gas to be ejected under high pressure. Current coal-water separation equipment does not differentiate between these components. In the event of a gas outburst, the dry coal dust carried by the gas is discharged into the coal-water collection tank, mixing with the coal-water mixture, while the gas is simultaneously extracted. The mixing of dry coal dust often causes blockages at the outlet of the separation tank, requiring frequent manual intervention and posing safety hazards. Furthermore, the outburst dry coal dust cannot be directly collected; after mixing with the coal-water mixture, it still requires centralized processing, reducing efficiency. Utility Model Content

[0003] To address the aforementioned problems, the purpose of this utility model is to propose a tracked water-coal safety collection and outburst separation device. Based on the existing water-coal collection box structure, a high-pressure outburst coal powder collection chamber is added. In the event of a sudden gas outburst, the dry coal powder ejected by the high-pressure jet can be collected in the high-pressure outburst coal powder collection chamber, separating it from the water and coal, thereby solving the problems of dry coal powder collection and box blockage.

[0004] The technical solution adopted by this utility model to solve the above problems is as follows:

[0005] A tracked water-coal safety collection and outburst separation device includes a tracked vehicle and a collection box mounted on the tracked vehicle. The collection box has an inner cavity with a partition dividing it into two chambers: a high-pressure outburst coal powder collection chamber at the rear and a normal-pressure water-coal collection chamber at the front. The normal-pressure water-coal collection chamber has a water-coal inlet and a gas extraction port at the top of its end wall, and a water-coal discharge chamber at its bottom. A high-pressure coal powder inlet is located on the partition corresponding to the jet position of the water-coal inlet. The high-pressure outburst coal powder collection chamber has a coal discharge auger at its bottom, a coal powder outlet on its side wall, and a gas extraction port on its top wall.

[0006] In a preferred embodiment, the bottom of the high-pressure outburst coal powder collection chamber is provided with an inclined guide plate for guiding the outburst dry coal powder toward the coal discharge auger.

[0007] In a preferred embodiment, one end of the coal discharge auger is attached to the tail side wall of the high-pressure outburst coal powder collection chamber, and the other end extends through a partition and is connected to a drive motor. The atmospheric pressure water-coal collection chamber is sealed with a bottom plate at the top of the drive motor to separate the drive motor from the atmospheric pressure water-coal collection chamber.

[0008] In a preferred embodiment, a mud discharge pump is installed inside the water-coal discharge chamber.

[0009] In a preferred embodiment, the tracked vehicle is pneumatically or hydraulically driven.

[0010] In a preferred embodiment, an anti-clogging maintenance door is provided on the front side wall of the atmospheric pressure water-coal collection chamber.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] Based on the existing structure of the coal-water collection box, this application introduces a partition structure to add a high-pressure outburst coal powder collection chamber inside the collection box. In the event of a sudden gas outburst, the dry coal powder ejected by the high-pressure jet can be collected in the high-pressure outburst coal powder collection chamber, separating it from the coal-water mixture discharged into the normal-pressure coal-water collection chamber. This prevents the dry coal powder from mixing with the coal-water mixture and clogging the box. At the same time, the dry coal powder is collected in a centralized manner, thus solving both the problems of dry coal powder collection and box clogging. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a simplified side view of the structure of this utility model;

[0015] Figure 3 This is a simplified diagram of the internal structure of the collection box.

[0016] The markings in the diagram are: 1. Tracked vehicle, 2. Baffle, 3. High-pressure coal dust collection chamber, 4. Atmospheric coal water collection chamber, 41. Anti-clogging maintenance door, 5. Coal water inlet, 6. Gas extraction port, 7. Coal water discharge chamber, 71. Slurry discharge pump, 8. High-pressure coal water inlet, 9. Coal discharge auger, 91. Drive motor, 10. Coal dust outlet, 11. Guide plate, 12. Bottom plate. Detailed Implementation

[0017] The present application will be further described below with reference to specific embodiments. All aspects not described in detail in the following embodiments are prior art; therefore, the structure and connections will not be elaborated upon.

[0018] As shown in the figure, this application discloses a tracked coal-water safety collection and outburst separation device, including a tracked vehicle 1 and a collection box mounted on the tracked vehicle 1. A partition 2 is provided inside the collection box, dividing the inner cavity into two chambers: a high-pressure outburst coal powder collection chamber 3 located at the rear end and a normal-pressure coal-water collection chamber 4 located at the front end. The normal-pressure coal-water collection chamber 4 has a coal-water inlet 5 and a gas extraction port 6 at the top of its end wall, and a coal-water discharge chamber 7 at its bottom. The partition 2 has corresponding features for the coal-water inlet... A high-pressure coal powder inlet 8 is provided at the jet position of the port 5. A coal discharge auger 9 is provided at the bottom of the high-pressure outburst coal powder collection chamber 3. One end of the coal discharge auger 9 is attached to the tail side wall of the high-pressure outburst coal powder collection chamber 3, and the other end passes through the partition 2 and is connected to a drive motor 91. A bottom plate 12 is sealed at the top of the drive motor 91 in the atmospheric pressure water coal collection chamber 4 to separate the drive motor 91 from the atmospheric pressure water coal collection chamber 4. A coal powder outlet 10 is provided on the side wall of the high-pressure outburst coal powder collection chamber 3, and a gas extraction port 6 is provided on the top wall.

[0019] In this embodiment, an inclined guide plate 11 is provided at the bottom of the high-pressure outburst coal powder collection chamber 3 to guide the outburst dry coal powder to the coal discharge auger 9, so that the collected dry coal powder can be efficiently discharged through the coal discharge auger 9.

[0020] In this embodiment, a mud discharge pump 71 is installed in the water-coal discharge chamber 7 to collect and transport the discharged water-coal.

[0021] In this embodiment, the tracked vehicle 1 is pneumatically driven or hydraulically driven. In the pneumatically driven structure, it can be connected to the compressed air pipeline in the coal mine to provide power. In the hydraulically driven structure, the tracked vehicle 1 needs to be equipped with a corresponding hydraulic drive assembly and power assembly. These structures are all existing technologies and will not be described in detail here.

[0022] In this embodiment, an anti-clogging maintenance door 41 is provided on the front side wall of the atmospheric pressure water-coal collection chamber 4 for centralized cleaning of water and coal in the atmospheric pressure water-coal collection chamber 4 to avoid clogging problems.

[0023] In operation, the coal-water inlet 5 connects to the coal-water collection pipe discharged from the drill pipe, concentrating the coal-water mixture into the atmospheric pressure coal-water collection chamber 4. At the bottom of the atmospheric pressure coal-water collection chamber 4, the discharged coal-water mixture is then pumped out by the mud discharge pump 71. In the event of a gas outburst, the coal-water collection pipe no longer discharges coal-water mixture, but rather dry coal dust carried by high-pressure gas. This dry coal dust is jetted out under high pressure and sent through the high-pressure coal dust inlet 8 into the high-pressure outburst coal dust collection chamber 3, where it is then discharged through the coal discharge auger 9. This effectively prevents the mixing of dry coal dust and coal-water mixture, avoiding blockage at the coal-water outlet. Simultaneously, it also collects the dry coal dust, achieving two goals at once. Compared to existing collection box structures, this method improves construction efficiency several times over.

[0024] The above are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above content. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

Claims

1. A tracked water-coal safety collection and outburst separation device, comprising a tracked vehicle (1) and a collection box mounted on the tracked vehicle (1), characterized in that: The inner cavity of the collection box is provided with a partition (2), which divides the inner cavity of the collection box into two chambers, namely a high-pressure coal dust collection chamber (3) located at the rear end and a normal-pressure coal water collection chamber (4) located at the front end. The normal-pressure coal water collection chamber (4) is provided with a coal water inlet (5) and a gas extraction port (6) at the top of the end wall, and a coal water discharge chamber (7) at the bottom. The partition (2) is provided with a high-pressure coal dust inlet (8) at the jet position corresponding to the coal water inlet (5). The high-pressure coal dust collection chamber (3) is provided with a coal discharge auger (9) at the bottom, a coal dust outlet (10) on the side wall, and a gas extraction port (6) on the top wall.

2. The tracked coal-water safety collection and outburst separation device as described in claim 1, characterized in that: The bottom of the high-pressure outburst coal powder collection chamber (3) is provided with an inclined guide plate (11) for guiding the outburst dry coal powder to the coal discharge auger (9).

3. The tracked coal-water safety collection and outburst separation device as described in claim 1, characterized in that: One end of the coal discharge auger (9) is attached to the tail side wall of the high-pressure outburst coal powder collection chamber (3), and the other end passes through the partition (2) and is connected to a drive motor (91). The atmospheric pressure water coal collection chamber (4) is sealed with a bottom plate (12) at the top of the drive motor (91) to separate the drive motor (91) from the atmospheric pressure water coal collection chamber (4).

4. The tracked coal-water safety collection and outburst separation device as described in claim 1, characterized in that: The water and coal discharge chamber (7) is equipped with a mud discharge pump (71).

5. The tracked coal-water safety collection and outburst separation device as described in claim 1, characterized in that: The tracked vehicle (1) is pneumatically or hydraulically driven.

6. The tracked coal-water safety collection and outburst separation device as described in claim 1, characterized in that: An anti-blocking maintenance door (41) is provided on the front side wall of the atmospheric pressure water and coal collection chamber (4).

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