A coal seam exploration device for a thick loess covered area

Abstract

The utility model relates to the technical field of coal seam exploration, especially a thick loess covering area coal seam exploration device, the upper end fixed connection of support frame has centrifugal fan, the bottom of support frame is seted up with recess, is connected with the air inlet cover in recess, the import end of centrifugal fan is connected air inlet cover through first connecting pipe, is connected with the open box on support frame, the outlet of centrifugal fan is connected open box through second connecting pipe, and the open of centrifugal fan is connected with filter screen. The utility model starts through the power on of centrifugal fan, and the gas in air inlet cover is sucked through first connecting pipe, makes its inside produce negative pressure, further produces dust gas in the process of adsorbing drilling through air inlet cover, and the dust gas that absorbs is introduced into open box through second connecting pipe, and the gas in open box releases through filter screen, through the dust gas that absorbs drilling, can avoid its release to the working environment, prevents the deterioration of environment, and further guarantees the health of staff.

Description

Technical Field

[0001] This utility model relates to the field of coal seam exploration technology, and in particular to a coal seam exploration device for areas covered by thick loess. Background Technology

[0002] Coal seam exploration in loess-covered areas refers to the technical process of detecting, sampling, and evaluating coal resources in areas covered by thick loess deposits.

[0003] In existing technologies, drilling is generally used for exploration. Typically, a drive mechanism propels the drill bit into the loess-covered coal seam for sampling. During drilling, the loess layer covering the coal seam, formed by wind deposition, has weak interparticle cementation and easily forms a porous structure. This porous structure collapses rapidly under mechanical force. As the drill bit rotates and the drill rod drives the hole, turbulence forms in the annular area between the drill rod and the hole wall, causing dust to suspend and disperse. This results in a large amount of dust and gas being dispersed into the working environment during drilling, reducing the quality of the working environment. Workers in this environment are susceptible to harm from the dust and gas. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies where a large amount of dust and gas are dispersed into the working environment during drilling, reducing the quality of the working environment and easily causing harm to the health of workers. Therefore, this invention proposes a coal seam exploration device for areas covered by thick loess.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a coal seam exploration device for areas covered by thick loess, including a support frame, a base plate fixedly connected to the bottom of the support frame, a movable plate slidably connected to the support frame, a drilling machine for drilling fixedly connected to the movable plate, a centrifugal fan fixedly connected to the upper end of the support frame, a groove opened at the bottom of the support frame, an air inlet hood connected to the groove, the inlet end of the centrifugal fan connected to the air inlet hood through a first connecting pipe, an open box connected to the support frame, the outlet of the centrifugal fan connected to the open box through a second connecting pipe, and a filter screen connected to the open end of the centrifugal fan.

[0007] Preferably, both sides of the base plate are fitted with insert rods for fixing.

[0008] Preferably, the bottom end of each of the inserts is a pointed structure.

[0009] Preferably, the open box is connected to an anti-clogging mechanism to prevent the filter screen from getting clogged. The anti-clogging mechanism includes a fixing plate, which is fixedly connected to the open box. One end of the fixing plate is rotatably connected to a connecting plate, and a first spring is fixedly connected to the connecting plate. One end of the first spring is connected to the open box.

[0010] Preferably, one end of the connecting plate is fixedly connected to an impact block, which contacts the open box.

[0011] Preferably, a pull ring is fixedly connected to the connecting plate.

[0012] Preferably, the upper end of the base plate is connected to a blocking mechanism to prevent soil from entering the air intake hood. The blocking mechanism includes a fixed frame, one side of which is rotatably connected to the base plate. A baffle is fixedly connected to the fixed frame, and the baffle is located on the outside of the air intake hood. The fixed frame is connected to a support frame via a second spring.

[0013] Preferably, the second spring is provided in a plurality of springs and is distributed at equal intervals along the length of the fixed frame.

[0014] The coal seam exploration device for areas covered by thick loess proposed in this utility model has the following advantages:

[0015] When the centrifugal fan is powered on, it draws in gas from the intake hood through the first connecting pipe, creating a negative pressure inside. This pressure then adsorbs the dust and gas generated during drilling through the intake hood. The adsorbed dust and gas are then introduced into an open box through the second connecting pipe. The gas in the open box is released through a filter screen. By adsorbing the dust and gas generated during drilling, it is prevented from being released into the working environment, thus preventing environmental degradation and protecting the health of the workers. Attached Figure Description

[0016] Figure 1 This invention provides a structural schematic diagram of a coal seam exploration device for areas covered by thick loess. Figure 1 ;

[0017] Figure 2 This invention provides a structural schematic diagram of a coal seam exploration device for areas covered by thick loess. Figure 2 ;

[0018] Figure 3 for Figure 2 A magnified view of the structure at point A above;

[0019] Figure 4 This is a cross-sectional structural schematic diagram of a coal seam exploration device for areas covered by thick loess, as proposed in this utility model.

[0020] Figure 5This is a schematic diagram of the connection between the bottom plate and the blocking mechanism in a coal seam exploration device for areas covered by thick loess, as proposed in this utility model.

[0021] In the diagram: 1. Support frame; 2. Base plate; 3. Insert rod; 4. Movable plate; 5. Motor drive component; 6. Drilling machine; 7. Centrifugal fan; 8. First connecting pipe; 9. Groove; 10. Air inlet hood; 11. Second connecting pipe; 12. Open box; 13. Filter screen; 14. Anti-clogging mechanism; 15. Blocking mechanism; 141. Fixing plate; 142. Connecting plate; 143. Impact block; 144. First spring; 145. Pull ring; 151. Fixing frame; 152. Baffle net; 153. Second spring. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Example 1: Refer to Figure 1-2 and Figure 4 A coal seam exploration device for areas covered by thick loess includes a support frame 1. A base plate 2 is fixedly connected to the bottom of the support frame 1. Insert rods 3 for fixing are inserted into both sides of the base plate 2. The bottom end of each insert rod 3 is a pointed structure. A movable plate 4 is slidably connected to the support frame 1. A drilling machine 6 for drilling is fixedly connected to the movable plate 4. A motor drive 5 for moving the movable plate 4 in the vertical direction is connected to the support frame 1. A centrifugal fan 7 is fixedly connected to the upper end of the support frame 1. A groove 9 is opened at the bottom end of the support frame 1. An air inlet hood 10 is connected in the groove 9. The inlet end of the centrifugal fan 7 is connected to the air inlet hood 10 through a first connecting pipe 8. An open box 12 is connected to the support frame 1. The outlet of the centrifugal fan 7 is connected to the open box 12 through a second connecting pipe 11. A filter screen 13 is connected to the open end of the centrifugal fan 7.

[0024] Work process:

[0025] The base plate 2 is fixed by two insert rods 3. The base plate 2 is fixed to the support frame 1. When drilling exploration is carried out, the motor drive 5 is started, which drives the movable plate 4 to move down a set distance and then reset. The movable plate 4 synchronously drives the drilling machine 6 to complete the same stroke of downward movement and reset. After the drilling machine 6 moves down to contact the ground, it continues to move down to start the drilling operation.

[0026] Simultaneously, the centrifugal fan 7 is powered on and starts, drawing in gas from the air intake hood 10 through the first connecting pipe 8, creating a negative pressure inside. This negative pressure then allows the air intake hood 10 to absorb the dust and gas generated during drilling. The absorbed dust and gas are then introduced into the open box 12 through the second connecting pipe 11. The gas in the open box 12 is released through the filter screen 13, and the dust, after being filtered by the filter screen 13, falls into the open box 12 for centralized cleaning. By drawing in the dust and gas generated during drilling, it is possible to prevent its release into the working environment, thus preventing environmental degradation and protecting the health of the workers.

[0027] Example 2: When filter screen 13 filters dust in the gas, after a long period of filtration, a certain amount of dust accumulates on filter screen 13, causing it to become clogged and thus reducing the filtration effect. (Refer to...) Figure 3 As another preferred embodiment of this utility model, the difference from embodiment 1 is that the open box 12 is connected to an anti-clogging mechanism 14 to prevent the filter screen 13 from clogging. The anti-clogging mechanism 14 includes a fixing plate 141, which is fixedly connected to the open box 12. One end of the fixing plate 141 is rotatably connected to a connecting plate 142. One end of the connecting plate 142 is fixedly connected to an impact block 143, which contacts the open box 12. A first spring 144 is fixedly connected to the connecting plate 142, one end of the first spring 144 is connected to the open box 12, and a pull ring 145 is fixedly connected to the connecting plate 142.

[0028] Pulling the pull ring 145 outward causes the pull ring 145 to pull the connecting plate 142, causing it to rotate around the fixed plate 141. The connecting plate 142 drives the impact block 143 to rotate, causing the impact block 143 to separate from the open box 12 and form a certain distance. At the same time, when the connecting plate 142 rotates, it stretches the first spring 144, and the first spring 144 generates an elastic restoring force after being stretched.

[0029] After the pull ring 145 is released, the elastic force of the first spring 144 drives the connecting plate 142 to rotate towards the open box 12. The connecting plate 142 drives the impact block 143 to rotate. When the impact block 143 rotates to a certain angle, it collides with the open box 12. The resulting vibration is transmitted through the box to the filter screen 13, causing the dust on the filter screen 13 to fall off, preventing the filter screen 13 from clogging, thereby maintaining its filtration effect.

[0030] Example 3: When the air intake hood 10 sucks up the dust generated during drilling, the drilling machine 6 will throw out a certain amount of large yellow soil clods during drilling. These yellow soil clods can easily enter the air intake hood 10, causing it to become blocked and thus unable to suck up the dust and gas. (Refer to...) Figure 5As another preferred embodiment of this utility model, the difference from embodiment 1 is that the upper end of the base plate 2 is connected to a blocking mechanism 15 to prevent soil from entering the air intake hood 10. The blocking mechanism 15 includes a fixed frame 151, one side of the fixed frame 151 is rotatably connected to the base plate 2, and a baffle 152 is fixedly connected to the fixed frame 151. The baffle 152 is located on the outside of the air intake hood 10. The fixed frame 151 is connected to the support frame 1 through a second spring 153. The second spring 153 is provided in several portions and is evenly distributed along the length direction of the fixed frame 151.

[0031] The thrown loess clods collide with the baffle 152. After being impacted, the baffle 152 causes the fixed frame 151 to rotate. When the fixed frame 151 rotates, it compresses the second spring 153. The second spring 153 generates an elastic restoring force after being compressed, providing elastic support for the fixed frame 151. The fixed frame 151 is used to fix the baffle 152. The baffle 152 is located outside the air intake hood 10, which can block the thrown loess clods and prevent them from entering the air intake hood 10, thereby preventing the air intake hood from being blocked.

[0032] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coal seam exploration device for a thick loess-covered area, comprising a support frame (1), a base plate (2) fixedly connected to the bottom end of the support frame (1), a movable plate (4) slidably connected to the support frame (1), and a drilling machine (6) for drilling fixedly connected to the movable plate (4), characterized in that, in: A centrifugal fan (7) is fixedly connected to the upper end of the support frame (1). A groove (9) is provided at the bottom end of the support frame (1). An air inlet hood (10) is connected inside the groove (9). The inlet end of the centrifugal fan (7) is connected to the air inlet hood (10) through a first connecting pipe (8). An open box (12) is connected to the support frame (1). The outlet of the centrifugal fan (7) is connected to the open box (12) through a second connecting pipe (11). A filter screen (13) is connected to the open end of the centrifugal fan (7). The upper end of the base plate (2) is connected to a blocking mechanism (15) to prevent soil from entering the air intake hood (10). The blocking mechanism (15) includes a fixed frame (151). One side of the fixed frame (151) is rotatably connected to the base plate (2). A baffle (152) is fixedly connected to the fixed frame (151). The baffle (152) is located outside the air intake hood (10). The fixed frame (151) is connected to the support frame (1) through a second spring (153).

2. The coal seam exploration device for areas covered by thick loess as described in claim 1, characterized in that, Both sides of the base plate (2) are fitted with insert rods (3) for fixing.

3. The coal seam exploration device for areas covered by thick loess as described in claim 2, characterized in that, The bottom end of each of the aforementioned inserts (3) is a pointed structure.

4. The coal seam exploration device in a thick loess-covered area according to claim 1, characterized in that, The open box (12) is connected to an anti-clogging mechanism (14) to prevent the filter screen (13) from clogging. The anti-clogging mechanism (14) includes a fixing plate (141), which is fixedly connected to the open box (12). One end of the fixing plate (141) is rotatably connected to a connecting plate (142), and a first spring (144) is fixedly connected to the connecting plate (142). One end of the first spring (144) is connected to the open box (12).

5. The coal seam exploration device for areas covered by thick loess as described in claim 4, characterized in that, One end of the connecting plate (142) is fixedly connected to an impact block (143), which is in contact with the open box (12).

6. The coal seam exploration device for areas covered by thick loess as described in claim 5, characterized in that, A pull ring (145) is fixedly connected to the connecting plate (142).

7. The coal seam exploration device for areas covered by thick loess as described in claim 1, characterized in that, The second spring (153) has several springs that are evenly distributed along the length of the fixed frame (151).

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