Coal mining machine for coal mining in coal mine

Abstract

The utility model discloses a coal mining machine for coal mining in a coal mine, which belongs to the technical field of coal mining machines and is characterized in that the coal mining machine comprises a coal mining machine body. Smoke containing particulate matter generated during coal seam crushing is absorbed by the dust hood through the filter box and the suction pipe and then enters the filter box, large-particle impurities such as coal cinder and broken stone are intercepted through the primary filter screen frame in the filter box and prevented from making direct contact with fan blades, fine dust is captured through the dust interception filter bag frame, and the dust removal effect is achieved. And finally, harmful gas and peculiar smell in the waste gas are removed through an activated carbon peculiar smell adsorption and purification frame, a three-stage filtration and purification system is formed, the suction efficiency and the dust collection precision are improved, the draught fan can be effectively protected, exhausted gas can be effectively purified, and the problems that an existing dust collection structure is prone to damage, and the peculiar smell of the waste gas is not treated are solved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining machine technology, and in particular to a coal mining machine for coal mining. Background Technology

[0002] Coal mining machines are one of the important pieces of equipment for realizing the mechanization and modernization of coal mine production. Mechanized coal mining can reduce physical labor, improve safety, and achieve the goals of high output, high efficiency, and low consumption.

[0003] Most existing coal mining machines used for mining thin coal seams have small baffle areas, which are not effective in blocking flying coal fragments and lack a structure for collecting coal dust. As a result, the coal mining machines generate a lot of dust during operation, causing environmental pollution.

[0004] An existing patent (publication number: CN221169547U) discloses a coal mining machine for coal mining. This utility model solves the problem that most existing coal mining machines used when mining thin coal seams have small baffle areas, poor blocking effect on flying coal fragments, and no structure for collecting coal dust. As a result, the coal mining machine generates a lot of dust during operation, causing environmental pollution and affecting the performance of the machine.

[0005] To address the aforementioned issues, existing patents offer solutions, but these patents have shortcomings in terms of dust collection and extension plate adjustment. Regarding dust collection, the vacuum cleaner directly draws dust from the suction plate via the suction pipe. The particulate matter-laden smoke generated from coal mining is not effectively pre-treated, and the smoke comes into contact with the vacuum cleaner's fan blades. This not only reduces suction quality and efficiency but also easily damages the vacuum cleaner. Furthermore, the smoke enters the storage drawer through the suction pipe; although it is filtered through the exhaust port, the exhaust gas is not odor-purified. As for extension plate adjustment, it is currently done manually, which is both labor-intensive and time-consuming, failing to meet the demands for high efficiency and convenience, and is inconsistent with the trend of automation.

[0006] Therefore, a coal mining machine for coal mining is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a coal mining machine that can solve the shortcomings of the above-mentioned patent in terms of dust collection and telescopic plate adjustment. In terms of dust collection, the dust collector directly sucks dust from the dust collection plate through the dust collection pipe. The particulate matter dust generated from mining crushed coal is not effectively pre-treated, and the dust comes into contact with the dust collector's fan blades. This not only reduces the suction quality and efficiency, but also easily damages the dust collector. In addition, the dust enters the storage box drawer through the dust collection pipe. Although it is filtered through the exhaust port, the exhaust gas is not treated for odor purification. In terms of telescopic plate adjustment, it is currently manually adjusted, which is both labor-intensive and time-consuming, and cannot meet the needs of high efficiency and convenience, which is inconsistent with the trend of automation development.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a coal mining machine for coal mining, including a coal mining machine body, a crushing shaft cutter is provided on the left side of the coal mining machine body, a dust suction mechanism is provided on the top of the crushing shaft cutter, a baffle is bolted to the rear side of the coal mining machine body, and an anti-blocking structure is provided on the top of the baffle.

[0009] The dust collection mechanism includes a filter box located on top of the coal mining machine body. A fan is bolted to the top of the coal mining machine body. The absorption end of the fan is connected to the front side of the filter box. From back to front, the filter box contains a primary filter screen frame, a dust interception filter bag frame, and an activated carbon odor adsorption and purification frame. A dust collection hood is bolted to the front side of the guard structure. The dust collection hood is located on top of the crushing shaft cutter. A suction pipe is connected to the top of the dust collection hood. The bottom of the front side of the suction pipe is connected to the front side of the top of the filter box. A top cleaning structure is provided on the front side of the top of the coal mining machine body. The top cleaning structure is connected to the output end of the fan. The fan is connected to an external controller.

[0010] Preferably, the anti-blocking structure includes a lifting shield plate slidably connected inside the baffle, and the front side of the lifting shield plate is bolted to the rear side of the dust hood.

[0011] Preferably, both sides of the lifting shield are threaded with fixing blocks, and both sides of the baffle are provided with receiving grooves.

[0012] Preferably, an electric push rod is bolted inside the receiving groove, the telescopic end of the electric push rod is fixedly connected to the bottom of the fixed block, and the electric push rod is externally connected to a controller.

[0013] Preferably, the top clearing structure includes a discharge pipe connected to the output end of the blower, and a blower hood is provided on the front side of the top of the coal mining machine body, with the right side of the blower hood connected to the left side of the front side of the discharge pipe.

[0014] Preferably, a flow divider is provided on the rear side of the blower hood, and the flow divider is in the shape of a mesh.

[0015] Preferably, a protective shielding net is fixedly connected to the outer side of the inside of the receiving groove, and the protective shielding net is located outside the electric push rod.

[0016] Preferably, a handle is welded to the right side of the primary filter frame, the dust interception filter bag frame, and the activated carbon odor adsorption and purification frame, and the outer side of the handle is arc-shaped.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application, by setting up a dust collection mechanism, allows the external controller to start the fan when the coal mining machine body drives the crushing shaft cutter to mine coal. The dust, containing particulate matter, is absorbed by the dust collection hood through the filter box and suction pipe during the crushing of the coal seam. Then, it enters the filter box, where the primary filter screen frame intercepts large particles such as coal slag and gravel to prevent them from directly contacting the fan blades. The dust interception filter bag frame captures fine dust, and finally, the activated carbon odor adsorption and purification frame removes harmful gases and odors from the exhaust gas, forming a three-stage filtration and purification system. This not only improves the suction efficiency and dust collection accuracy but also effectively protects the fan and purifies the exhaust gas. It solves the problems of easy damage to existing dust collection structures and failure to treat exhaust gas odors. In addition, the pollution-free and odorless exhaust gas is blown out after entering the top cleaning structure, which can blow it to the top of the coal mining machine body to prevent a large amount of dust from adhering when floating.

[0019] 2. By setting up a barrier structure, this application enables the barrier structure to be quickly adjusted at the top of the baffle through automated control, replacing manual adjustment, reducing manpower consumption, shortening adjustment time, and significantly improving the convenience and efficiency of equipment operation, which is in line with the development trend of automation in modern mining equipment. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the coal mining machine for coal mining according to this utility model;

[0021] Figure 2 This is a structural diagram of the dust collection mechanism of this utility model;

[0022] Figure 3 This is a structural diagram of the anti-blocking structure of this utility model;

[0023] Figure 4 This is a structural diagram of the top-clearing structure of this utility model;

[0024] Figure 5 This is a structural diagram of the filter box of this utility model.

[0025] In the diagram, 1. Coal mining machine body; 2. Crushing shaft cutter; 3. Dust collection mechanism; 31. Filter box; 32. Fan; 33. Primary filter screen frame; 34. Dust interception filter bag frame; 35. Activated carbon odor adsorption and purification frame; 36. Dust collection hood; 37. Suction pipe; 38. Top cleaning structure; 381. Discharge pipe; 382. Blower hood; 383. Diversion net; 4. Baffle; 5. Anti-blocking structure; 51. Lifting shield plate; 52. Fixing block; 53. Receiving slot; 54. Electric push rod; 6. Protective shield net; 7. Pull handle. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A coal mining machine for coal mining includes a coal mining machine body 1, a crushing shaft cutter 2 is provided on the left side of the coal mining machine body 1, a dust suction mechanism 3 is provided on the top of the crushing shaft cutter 2, a baffle 4 is bolted to the rear side of the coal mining machine body 1, and an anti-blocking structure 5 is provided on the top of the baffle 4.

[0029] The dust collection mechanism 3 includes a filter box 31 set on the top of the coal mining machine body 1. A fan 32 is bolted to the top of the coal mining machine body 1. The absorption end of the fan 32 is connected to the front side of the filter box 31. The filter box 31 is provided with a primary filter screen frame 33, a dust interception filter bag frame 34 and an activated carbon odor adsorption and purification frame 35 from back to front. A dust collection hood 36 is bolted to the front side of the anti-blocking structure 5. The dust collection hood 36 is located on the top of the crushing shaft cutter 2. A suction pipe 37 is connected to the top of the dust collection hood 36. The bottom of the front side of the suction pipe 37 is connected to the front side of the top of the filter box 31. A top cleaning structure 38 is provided on the front side of the top of the coal mining machine body 1. The top cleaning structure 38 is connected to the output end of the fan 32. The fan 32 is connected to an external controller.

[0030] In this embodiment: by setting up a coal mining machine body 1, a crushing shaft cutter 2, a dust collection mechanism 3, a baffle 4, and a protective structure 5, when the coal mining machine body 1 drives the crushing shaft cutter 2 to mine the coal seam, the external controller starts the fan 32. The dust collection hood 36 sucks the particulate dust generated by crushing into the filter box 31 through the suction pipe 37. The dust first passes through the primary filter screen frame 33 to intercept large particles of impurities such as coal slag and gravel, preventing them from impacting the fan blades 32. Fine dust is then captured by the dust interception filter bag frame 34. Finally, harmful gases and odors are removed by the activated carbon odor adsorption purification frame 35. The purified gas enters the top cleaning structure 38 and is blown out, blowing to the top of the coal mining machine body 1 to reduce dust adhesion. At the same time, the protective structure 5 achieves rapid height adjustment at the top of the baffle 4 through automatic control, better protecting the crushing shaft cutter 2. Furthermore, it replaces manual operation, improving the convenience and efficiency of equipment operation, which is in line with the trend of automation development.

[0031] Specifically, such as Figure 3 As shown, the shielding structure 5 includes a lifting shield 51 that is slidably connected inside the baffle 4, and the front side of the lifting shield 51 is bolted to the rear side of the dust hood 36.

[0032] Specifically, such as Figure 3 As shown, both sides of the lifting shield 51 are threaded with fixing blocks 52, and both sides of the baffle 4 are provided with receiving grooves 53.

[0033] Specifically, such as Figure 3 As shown, an electric push rod 54 is bolted inside the receiving groove 53. The telescopic end of the electric push rod 54 is fixedly connected to the bottom of the fixing block 52. The electric push rod 54 is connected to an external controller.

[0034] In this embodiment: by setting up the anti-blocking structure 5, when it is necessary to adjust the blocking height of the crushing shaft cutter 2 or the height of the dust collection hood 36, the external controller starts the electric push rod 54, and its telescopic end drives the fixed block 52 to move vertically along the receiving grooves 53 on both sides of the baffle 4, thereby driving the lifting shield 51 threadedly connected to the fixed block 52 to slide, thereby increasing the protective shielding height. In addition, since the front side of the lifting shield 51 is bolted to the dust collection hood 36, the dust collection hood 36 rises and falls synchronously, which can also achieve precise dust collection coverage of the working area of ​​the crushing shaft cutter 2. Thus, by replacing manual adjustment with automated control, the adjustment efficiency and accuracy are significantly improved.

[0035] Specifically, such as Figure 4 As shown, the top clearing structure 38 includes a discharge pipe 381 connected to the output end of the blower 32, and a blower hood 382 is provided on the front side of the top of the coal mining machine body 1. The right side of the blower hood 382 is connected to the left side of the front side of the discharge pipe 381.

[0036] Specifically, such as Figure 4 As shown, a flow divider 383 is provided on the rear side of the blower shroud 382, ​​and the flow divider 383 is in the shape of a mesh.

[0037] In this embodiment: by setting up a top cleaning structure 38, the purified gas output by the fan 32 enters the blower hood 382 through the discharge pipe 381, and is evenly dispersed by the mesh-like diversion net 383 on the rear side, forming an airflow barrier covering the top of the coal mining machine body 1. This design not only avoids the accumulation of smoke and dust on the top of the coal mining machine body 1, but also blows the floating dust away from key components, reducing the impact of dust on the heat dissipation and mechanical moving parts of the coal mining machine body 1, and extending the service life of the equipment.

[0038] Specifically, such as Figure 3 As shown, a protective shielding net 6 is fixedly connected to the outer side of the inside of the receiving groove 53, and the protective shielding net 6 is located outside the electric push rod 54.

[0039] Specifically, such as Figure 5 As shown, a handle 7 is welded to the right side of the primary filter frame 33, the dust interception filter bag frame 34, and the activated carbon odor adsorption and purification frame 35. The outer side of the handle 7 is arc-shaped.

[0040] In this embodiment: by setting up a protective shielding net 6 and a handle 7, the protective shielding net 6 is located outside the electric push rod 54, which can block foreign objects such as coal slag and gravel from entering the receiving groove 53, avoiding them from interfering with the normal operation of the electric push rod 54 and extending the service life of the push rod. The arc-shaped handle 7 makes it easy for operators to quickly pull out and replace the primary filter screen frame 33, the dust interception filter bag frame 34 and the activated carbon odor adsorption and purification frame 35, improving maintenance efficiency. At the same time, its arc-shaped design conforms to ergonomics and reduces discomfort during operation.

[0041] Working Principle: During the operation of the coal mining machine, when the machine body 1 drives the left-side crushing shaft cutter 2 to work, the external controller simultaneously starts the fan 32 and electric push rod 54. The particulate dust generated by the crushing shaft cutter 2 is sucked into the filter box 31 through the suction pipe 37 by the dust suction hood 36 on the front side of the shielding structure 5. First, it passes through the primary filter screen frame 33 to intercept large particles of impurities such as coal slag and gravel, preventing them from entering the fan 32 and damaging the fan blades. Then, fine dust is captured by the dust interception filter bag frame 34. Finally, the clean gas, after the harmful gases and odors are removed by the activated carbon odor adsorption and purification frame 35, enters the discharge pipe 381 through the output end of the fan 32, and is then evenly blown out by the grid-like diversion net 383 in the blower hood 382, ​​forming an airflow barrier covering the coal mining machine body. 1. At the top, floating dust is blown away to prevent it from adhering and accumulating. During this process, the controller commands the electric push rod 54 to extend and retract in real time according to the coal seam thickness, driving the fixed block 52 to move up and down along the receiving grooves 53 on both sides of the baffle 4, which drives the threaded lifting shield plate 51 to slide, and synchronously adjusts the height of the dust suction hood 36. When the lifting shield plate 51 rises, it increases the protection area of ​​the crushing shaft cutter 2 and reduces the splashing of crushed coal. When it falls, it adapts to the low working space, realizing the automatic and precise adjustment of the dust suction range and protection height, replacing the traditional manual operation, improving efficiency. The overall coordination, through automatic control, multi-stage filtration and airflow circulation design, realizes efficient dust collection, equipment protection and environmental purification during crushing operations, taking into account both the convenience of operation and the needs of safe production in coal mines.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coal mining machine for coal mining in a coal mine, comprising a coal mining machine body (1), characterized in that: The left side of the coal mining machine body (1) is provided with a crushing shaft cutter (2), the top of the crushing shaft cutter (2) is provided with a dust suction mechanism (3), the rear side of the coal mining machine body (1) is bolted with a baffle (4), and the top of the baffle (4) is provided with a blocking structure (5). The dust suction mechanism (3) comprises a filter box (31) arranged on the top of the coal mining machine body (1), a fan (32) bolted on the top of the coal mining machine body (1), a suction end of the fan (32) in communication with the front side of the filter box (31), a primary filter screen frame (33), a dust interception filter bag frame (34) and an activated carbon odor adsorption purification frame (35) arranged in the filter box (31) from back to front, a dust suction cover (36) bolted on the front side of the blocking structure (5), the dust suction cover (36) located on the top of the crushing shaft cutter (2), a suction pipe (37) in communication with the top of the dust suction cover (36), the bottom of the front side of the suction pipe (37) in communication with the top of the front side of the filter box (31), a top cleaning structure (38) arranged on the front side of the top of the coal mining machine body (1), the top cleaning structure (38) in communication with the output end of the fan (32), and the fan (32) connected with a controller.

2. The coal mining machine for coal mining in coal mines according to claim 1, characterized in that: The blocking structure (5) comprises a lifting shielding plate (51) slidably connected to the inside of the baffle (4), and the front side of the lifting shielding plate (51) is bolted with the rear side of the dust suction cover (36).

3. The coal mining machine for coal mining in coal mines according to claim 2, characterized in that: The lifting shielding plate (51) is threadedly connected with a fixing block (52) on both sides, and the baffle (4) is provided with an accommodating groove (53) on both sides.

4. The coal mining machine for coal mining in a coal mine according to claim 3, characterized in that: The inside of the accommodating groove (53) is bolted with an electric push rod (54), the telescopic end of the electric push rod (54) is fixedly connected with the bottom of the fixing block (52), and the electric push rod (54) is connected with a controller.

5. The coal mining machine for coal mining in coal mines according to claim 1, characterized in that: The top cleaning structure (38) comprises a discharge pipe (381) in communication with the output end of the fan (32), a blowing cover (382) arranged on the front side of the top of the coal mining machine body (1), and the right side of the blowing cover (382) is in communication with the left side of the front side of the discharge pipe (381).

6. The coal mining machine for coal mining in a coal mine according to claim 5, characterized in that: The rear side of the blowing cover (382) is provided with a shunt net (383), and the shunt net (383) is in the shape of a grid.

7. The coal mining machine for coal mining in coal mines according to claim 3, characterized in that: The outside of the accommodating groove (53) is fixedly connected with a protective shielding net (6), and the protective shielding net (6) is located on the outside of the electric push rod (54).

8. The coal mining machine for coal mining in coal mines according to claim 1, characterized in that: The right side of the primary filter screen frame (33), the dust interception filter bag frame (34) and the activated carbon odor adsorption purification frame (35) is welded with a pull handle (7), and the outer side of the pull handle (7) is in the shape of an arc.

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