Coal briquette crushing device for coal quality test

Abstract

The utility model discloses a coal briquette crushing device for coal quality test, which relates to the technical field of coal test and comprises a grinding sleeve fixedly connected onto a support frame; the cover plate is detachably and fixedly connected to a port of the grinding sleeve; the grinding sleeve, the supporting frame and the cover plate form a grinding chamber, and a plurality of first discharging holes which are annularly arranged are formed in the bottom of the grinding chamber; the positioning sleeve is fixedly connected to the bottom of the grinding chamber; the top plate is arranged in the positioning sleeve in a liftable manner, and the top plate is in sliding contact with the inner wall of the positioning sleeve; the driving motor is arranged on the cover plate; the rotating column is fixedly connected to a rotating shaft of the driving motor, grinding teeth are arranged on the lower surface of the rotating column, and the rotating column directly faces the limiting sleeve; the material receiving box is arranged at the bottom of the supporting frame, and the first discharging hole is within the range of an opening of the material receiving box; the grinding device has the advantages of convenience in use, good grinding effect and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of coal testing, and particularly relates to a coal block crushing device for coal quality testing. Background Art

[0002] Before coal mining, it is necessary to test the collected coal, mainly to analyze elements such as the components and contents in the coal. When testing coal, it is necessary to grind coal blocks into powder. The traditional grinding method is mainly manual grinding, and the existing grinding method is mainly mechanical grinding;

[0003] For example, the patent application number CN202322783877.X discloses a coal processing and crushing device. Through the provided dust removal structure, all the dust generated during coal crushing can be absorbed, preventing the dust from floating into the air and polluting the environment and harming the health of workers; through the provided filtering structure, when the filter plate filters coal, the filter plate can vibrate up and down to accelerate the filtering speed, avoiding the blockage of the mesh holes caused by long-term filtering of the filter plate.

[0004] In the prior art, this patent mainly crushes coal by the rotation of two rollers. This crushing method is a common crushing method, but this crushing method is not suitable for grinding coal blocks into powder. The particle size after crushing is relatively large, and manual grinding is still required again, resulting in low efficiency. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a coal block crushing device for coal quality testing to solve the problem that the existing coal crushing device in the background art is not suitable for grinding coal blocks into fine powder.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: A coal block crushing device for coal quality testing, comprising

[0007] A support frame;

[0008] A grinding sleeve, fixedly connected to the support frame;

[0009] A cover plate, detachably fixedly connected to the port of the grinding sleeve;

[0010] Among them, the grinding sleeve, the support frame, and the cover plate form a grinding chamber, and the bottom of the grinding chamber has a number of first discharge holes arranged in a ring;

[0011] A positioning sleeve, fixedly connected to the bottom of the grinding chamber;

[0012] A top plate, arranged in the positioning sleeve in a liftable manner, and the top plate is in sliding contact with the inner wall of the positioning sleeve;

[0013] A driving motor, arranged on the cover plate;

[0014] The rotating column is fixedly connected to the rotating shaft of the driving motor. The lower surface of the rotating column has grinding teeth, and the rotating column faces the limiting sleeve.

[0015] The material receiving box is arranged at the bottom of the support frame, and the first discharge hole is within the range of the opening of the material receiving box.

[0016] Preferably, the cover plate and the grinding sleeve are detachably fixedly connected by a screw.

[0017] Preferably, a threaded sleeve surrounding the driving motor is fixedly connected to the cover plate, and a cover body is threadedly connected to the threaded sleeve.

[0018] Preferably, a hydraulic cylinder is fixedly connected to the support frame. The output end of the hydraulic cylinder extends into the positioning sleeve and is fixedly connected to the lifting plate. A pressure sensor is fixedly connected to the lifting plate, and the stress surface of the pressure sensor is fixedly connected to the top plate.

[0019] Preferably, several second discharge holes arranged in a ring are provided inside the limiting sleeve corresponding to the position of the support frame.

[0020] Preferably, a positioning sleeve is fixedly connected to the bottom of the support frame, and the inner wall of the open end of the material receiving box is sleeved on the outer wall of the positioning sleeve.

[0021] The beneficial effects of adopting the above technical solutions are as follows:

[0022] In this application, the driving motor drives the grinding teeth on the rotating column to rotate. There is a certain grinding gap between the grinding teeth and the open end of the limiting sleeve. The top plate pushes the coal in the positioning sleeve upward, so that the coal can be ground into powder by the grinding teeth, and then the powder flows into the material receiving box from the first discharge hole. Description of the Drawings

[0023] Figure 1 is a schematic diagram of a coal block crushing device for coal quality testing of the present utility model.

[0024] Figure 2 is a cross-sectional view of a coal block crushing device for coal quality testing of the present utility model.

[0025] Figure 3 is a schematic diagram of some components of the present utility model.

[0026] Wherein: support frame 10, grinding sleeve 20, grinding chamber 30, first discharge hole 31, limiting sleeve 40, second discharge hole 41, wire arranging hole 42, lifting plate 50, hydraulic cylinder 51, top plate 60, pressure sensor 61, rotating column 70, grinding teeth 71, driving motor 72, cover body 73, threaded sleeve 74, cover plate 75, material receiving box 80, positioning sleeve 81, screw 90, threaded hole 91. Detailed Embodiments

[0027] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0028] As Figures 1-3 , in the first embodiment, a coal block crushing device for coal quality testing includes

[0029] a support frame 10;

[0030] a grinding sleeve 20, fixedly connected to the support frame 10;

[0031] a cover plate 75, detachably fixedly connected to the port of the grinding sleeve 20;

[0032] Among them, the grinding sleeve 20, the support frame 10, and the cover plate 75 form a grinding chamber 30, and the bottom of the grinding chamber 30 has a number of first discharge holes 31 arranged in a ring;

[0033] a positioning sleeve 81, fixedly connected to the bottom of the grinding chamber 30;

[0034] a top plate 60, liftably arranged in the positioning sleeve 81, and the top plate 60 is in sliding contact with the inner wall of the positioning sleeve 81;

[0035] a driving motor 72, arranged on the cover plate 75;

[0036] a rotating column 70, fixedly connected to the rotating shaft of the driving motor 72, the lower surface of the rotating column 70 has grinding teeth 71, and the rotating column 70 faces the limiting sleeve 40;

[0037] a material receiving box 80, arranged at the bottom of the support frame 10, and the first discharge holes 31 are within the opening range of the material receiving box 80.

[0038] This embodiment is implemented as follows:

[0039] When this application is in use, the cover plate 75 is removed, the coal block is placed on the top plate 60 of the limiting sleeve 40, then the cover plate 75 is fixed to the grinding sleeve 20, and then the top plate 60 gradually moves upward in the limiting sleeve 40, driving the coal block to contact the grinding teeth 71. At this time, the driving motor 72 drives the rotating column 70 to rotate, and the rotating column 70 drives the grinding teeth 71 to rotate, grinding the coal block into powder, so that the coal block falls into the material receiving box 80 from the first discharge holes 31.

[0040] Both the limiting sleeve 40 and the grinding sleeve 20 of this application have wire arranging holes 42.

[0041] The advantage of this application compared with the prior art is that the particle size of grinding is small, avoiding dust emission.

[0042] Please refer to Figure 1 , 2 , the cover plate 75 and the grinding sleeve 20 are detachably fixedly connected by a screw 90.

[0043] The cover plate 75 and the grinding sleeve 20 can be fixedly connected by the provided screw rod 90.

[0044] Please refer to Figure 1 、 2 A threaded sleeve 74 surrounding the driving motor 72 is fixedly connected to the cover plate 75, and a cover body 73 is threadedly connected to the threaded sleeve 74.

[0045] Connecting the cover body 73 to the threaded sleeve 74 can protect the driving motor 72.

[0046] Please refer to Figure 2 A hydraulic cylinder 51 is fixedly connected to the support frame 10. The output end of the hydraulic cylinder 51 extends into the positioning sleeve 40 and is fixedly connected to the lifting plate 70. A pressure sensor 61 is fixedly connected to the lifting plate 70, and the stress surface of the pressure sensor 61 is fixedly connected to the top plate 60.

[0047] The hydraulic cylinder 51 can drive the lifting plate 70 to move vertically within the limit sleeve 40, the lifting plate 50 can drive the pressure sensor 61 to move vertically, and the pressure sensor 61 can drive the top plate 60 to move vertically.

[0048] Please refer to Figure 2 Several second discharge holes 41 arranged in a ring are provided inside the limit sleeve 40 corresponding to the position of the support frame 10.

[0049] The provided second discharge holes 41 can facilitate the coal powder in the limit sleeve 40 to fall into the receiving box 80.

[0050] Please refer to Figure 2 A positioning sleeve 81 is fixedly connected to the bottom of the support frame 10, and the inner wall of the open end of the receiving box 80 is sleeved on the outer wall of the positioning sleeve 81.

[0051] The provided positioning sleeve 81 can facilitate the positioning of the receiving box 80 on the positioning sleeve 81. The outer wall of the open end of the receiving box 80 of the present application has a clamping protrusion, and a clamping groove is provided on the inner wall of the positioning sleeve 81 corresponding to the position of the clamping protrusion.

[0052] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the creative concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A coal block crushing device for coal quality testing, characterized in that: include Support frame; A grinding sleeve, fixedly connected to the support frame; A cover plate, detachably fixedly connected to the end of the grinding sleeve; The grinding sleeve, the support frame and the cover plate form a grinding chamber, and the bottom of the grinding chamber has a plurality of first discharge holes arranged in a ring shape; A positioning sleeve, fixedly connected to the bottom of the grinding chamber; A top plate is movably disposed in the positioning sleeve, and the top plate is in sliding contact with the inner wall of the positioning sleeve; A driving motor is arranged on the cover plate; A rotating column is fixedly connected to the rotating shaft of the driving motor, the lower surface of the rotating column has grinding teeth, and the rotating column is directly opposite to the limiting sleeve; The material receiving box is arranged at the bottom of the support frame, and the first material discharge hole is within the range of the opening of the material receiving box.

2. A coal block crushing device for coal quality testing according to claim 1, characterized in that: The cover plate is detachably fixedly connected to the grinding sleeve via a screw rod.

3. The coal block crushing device for coal quality testing according to claim 1 is characterized in that: The cover plate is fixedly connected with a threaded sleeve surrounding the driving motor, and the threaded sleeve is connected with a cover body through threads.

4. The coal block crushing device for coal quality testing according to claim 1 is characterized in that: A hydraulic cylinder is fixedly connected to the support frame, an output end of the hydraulic cylinder extends into the positioning sleeve and is fixedly connected to the lifting plate, a pressure sensor is fixedly connected to the lifting plate, and a stress surface of the pressure sensor is fixedly connected to the top plate.

5. The coal block crushing device for coal quality testing according to claim 1 is characterized in that: The interior of the limiting sleeve is provided with a plurality of second discharge holes arranged in a ring shape at positions corresponding to the support frame.

6. The coal block crushing device for coal quality testing according to claim 1 is characterized in that: The bottom of the support frame is fixedly connected with a positioning sleeve, and the inner wall of the opening end of the material receiving box is clamped on the outer wall of the positioning sleeve.

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