Raw material grinder for coal gangue sintered insulating bricks

Abstract

The invention relates to the technical field of coal gangue brick production equipment, in particular to a raw material grinder for coal gangue sintered insulating bricks, which comprises a case and further comprises a centrifugal buffeting separation structure mounted in the case, the centrifugal buffeting separation structure comprises a rotary longitudinal shaking mechanism connected with the case, two groups of telescopic guide mechanisms are mounted in the case, and the rotary longitudinal shaking mechanism is connected with the rotary longitudinal shaking mechanism. The two sets of telescopic material guiding mechanisms are movably connected with the rotary longitudinal shaking mechanism, limiting abutting mechanisms connected with the rotary longitudinal shaking mechanism are installed on the telescopic material guiding mechanisms and used for providing longitudinal limiting for the rotary longitudinal shaking mechanism, and the telescopic material guiding mechanisms are fixedly connected with half bucket bodies arranged below the rotary longitudinal shaking mechanism; the wide-mouth aggregate grinding structure is arranged below the telescopic guide mechanism; and the fine grinding structure is arranged in the case. Graded grinding operation is carried out, and the grinding continuity and the production efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of gangue brick production equipment, in particular to a raw material grinder for gangue sintered thermal insulation bricks. Background Art

[0002] Gangue is solid waste discharged during coal mining and coal washing. Gangue bricks are building materials produced by sintered brick process with gangue as binder. In the process of producing gangue bricks, the gangue needs to be pre-treated in advance to facilitate auxiliary processing into gangue bricks for use in construction.

[0003] When grinding the raw materials of coal gangue sintered insulation bricks, since the raw materials are often mixed with large pieces of raw materials, the general grinder has only one set of grinding structure. As a result, when the large pieces of raw materials are ground, the smaller raw materials on the large pieces of raw materials cannot continue to fall for grinding, and a blockage-like state is generated in the grinder. At this time, due to the mutual interference between large pieces of raw materials and small pieces of raw materials, the grinding efficiency is reduced. Summary of the invention

[0004] The object of the present invention is to provide a raw material grinder for coal gangue sintered thermal insulation bricks to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions: A raw material grinder for coal gangue sintered thermal insulation bricks, comprising a chassis, a maintenance door movably mounted on the chassis, a feed hopper fixedly connected to the chassis, and further comprising: A centrifugal shaking separation structure installed in the chassis, the centrifugal shaking separation structure includes a rotating longitudinal shaking mechanism connected to the chassis, two sets of telescopic material guiding mechanisms are installed in the chassis, the two sets of telescopic material guiding mechanisms are movably connected to the rotating longitudinal shaking mechanism, a limiting abutment mechanism connected to the rotating longitudinal shaking mechanism is installed on the telescopic material guiding mechanism, the limiting abutment mechanism is used to provide longitudinal limit for the rotating longitudinal shaking mechanism, the telescopic material guiding mechanism is fixedly connected to a half bucket body arranged below the rotating longitudinal shaking mechanism, when the two sets of half bucket bodies abut against each other, the two sets of half bucket bodies together form a group of funnels; A wide-mouth aggregate grinding structure is arranged below the telescopic material guiding mechanism, and the wide-mouth aggregate grinding structure is fixedly connected to the chassis; A fine grinding structure is installed in the chassis, wherein the fine grinding structure is arranged below the half bucket body and below the wide-mouth aggregate grinding structure.

[0006] As a further improvement scheme of the present invention: the rotating longitudinal shaking mechanism includes a fixed frame fixedly connected to the chassis, the fixed frame fixedly connected to a central motor, the fixed frame fixedly connected to a first active telescopic frame, the output shaft of the central motor fixedly connected to a prism, the prism slidably connected to a sleeve shaft, a reset spring is installed between the prism and the sleeve shaft, the sleeve shaft is fixedly connected to a disk body, a plurality of groups of extrusion blocks are fixedly installed on the disk body, the sleeve shaft is fixedly connected to an inner concave block adapted to the limiting abutment mechanism, a first electromagnet is fixedly installed in the inner concave block, the first electromagnet is connected to a magnetic pin through a first spring, the magnetic pin slides with the inner concave block, the magnetic pin is movably connected to a skeleton movably connected to the inner concave block, a plurality of groups of screens are fixedly installed on the skeleton, a protruding strip is fixedly installed on the skeleton, the first active telescopic frame is fixedly connected to a plurality of borders, and the plurality of borders are fixedly connected to a plurality of groups of impact rods adapted to the extrusion blocks.

[0007] As a further improvement scheme of the present invention: the telescopic material guiding mechanism comprises a frame fixedly connected to the chassis, the frame is fixedly provided with a support plate, the chassis is provided with multiple groups of limit clamps, a slide is slidably installed on the support plate, the slide is fixedly connected to the half bucket body, racks slidably connected to the limit clamps are fixedly installed on both sides of the slide, the frame is fixedly connected to two groups of first motors, the output shaft of the first motor is fixedly connected to a gear meshing with the rack, the slide is fixedly connected to an enclosure movably connected to the skeleton, the enclosure is movably connected to the screen, a notch is provided on the enclosure, the enclosure is fixedly connected to a material guiding frame adapted to the notch, a second active telescopic frame is fixedly installed on the material guiding frame, the moving end of the second active telescopic frame is fixedly connected to a baffle movably connected to the notch, and the slide is connected to the limit abutment mechanism.

[0008] As a further improvement of the present invention: the position-limiting abutment mechanism comprises a third active telescopic frame fixedly connected to the slide, and a protruding block matched with the inner concave block is fixedly connected to the moving end of the third active telescopic frame.

[0009] As a further improvement scheme of the present invention: the wide-mouth aggregate grinding structure includes a wide mouth mask fixedly connected to the chassis, the wide mouth mask is arranged below the material guide frame, a grinding cover is fixedly installed on the bottom of the wide mouth mask, a second motor is fixedly installed on the grinding cover, a grinding wheel is fixedly connected to the output shaft of the second motor, a grinding sheet is fixedly installed in the grinding cover, and the lower opening of the grinding cover faces the fine grinding structure.

[0010] As a further improvement of the present invention: the fine grinding structure includes a conical cover fixedly installed in the chassis, the conical cover is arranged below the half bucket body, the conical cover is arranged below the grinding cover, the conical cover is fixedly connected to a hole frame, a plurality of leakage ports are provided on the hole frame, the hole frame is fixedly connected to a third motor, and the output shaft of the third motor is fixedly connected to a grinding block.

[0011] As a further improvement of the present invention: a diverter shell is fixedly installed on the top of the perforated frame, and the diverter shell is arranged below the half bucket body.

[0012] Compared with the prior art, the present invention has the following beneficial effects: The raw materials are put into the feed hopper, and then the raw materials slide along the feed hopper to the rotating longitudinal shaking mechanism. The rotating longitudinal shaking mechanism screens the raw materials during vibration, so that a part of the raw materials pass through the rotating longitudinal shaking mechanism and fall into the funnel composed of two groups of half buckets, and then the fallen raw materials fall to the fine grinding structure for fine grinding. When it is necessary to deliver another part of the raw materials on the rotating longitudinal shaking mechanism to the wide-mouth aggregate grinding structure, the limiting abutment mechanism and the rotating longitudinal shaking mechanism are engaged with each other, thereby limiting the longitudinal movement of the rotating longitudinal shaking mechanism. At this time, the rotating longitudinal shaking mechanism rotates centrifugally, so that the raw materials on the rotating longitudinal shaking mechanism are thrown away to the telescopic material guiding mechanism, and then the telescopic material guiding mechanism guides the raw materials into the wide-mouth aggregate grinding structure. After the raw materials are preliminarily ground and refined by the wide-mouth aggregate grinding structure, the preliminarily ground raw materials fall from the wide-mouth aggregate grinding structure into the fine grinding structure, thereby finely grinding the raw materials together. The present invention separates bulk raw materials from the raw materials of the present invention by means of vibration screening, and then allows the bulk raw materials to enter a wide-mouth aggregate grinding structure for preliminary grinding and refinement by means of centrifugation, and then uses a fine grinding structure for fine grinding, thereby performing graded grinding operations and improving grinding continuity and production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the internal structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the telescopic material guiding mechanism, the position limiting abutment mechanism and the half bucket body of the present invention; Figure 4 It is a schematic diagram of the structure of the telescopic material guiding mechanism, the position limiting abutment mechanism, and the half bucket body of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating longitudinal shaking mechanism of the present invention; Figure 6 It is a structural schematic diagram of the rotating longitudinal shaking mechanism of the present invention; Figure 7It is a schematic diagram of the internal structure of the wide-mouth aggregate grinding structure of the present invention.

[0014] In the figure: 1, chassis; 2, maintenance door; 3, feed hopper; 4, centrifugal shaking separation structure; 5, rotating longitudinal shaking mechanism; 6, telescopic material guiding mechanism; 7, limit abutment mechanism; 8, half bucket body; 9, wide-mouth aggregate grinding structure; 10, fine grinding structure; 11, fixed frame; 12, central motor; 13, first active telescopic frame; 14, prism; 15, sleeve shaft; 16, disc body; 17, extrusion block; 18, inner concave block; 19, first electromagnet; 20, magnetic pin; 21, skeleton; 22, screen; 23, protruding strip; 24, multi-frame; 25. Impact rod; 26. Frame; 27. Support plate; 28. Limit clamp strip; 29. ​​Slide; 30. Rack; 31. First motor; 32. Gear; 33. Enclosure; 34. Notch; 35. Material guide rack; 36. Second active telescopic rack; 37. Baffle; 38. Third active telescopic rack; 39. Protrusion; 40. Wide mask; 41. Grinding cover; 42. Second motor; 43. Grinding wheel; 44. Grinding sheet; 45. Conical cover; 46. Hole rack; 47. Leakage port; 48. Third motor; 49. Grinding block; 50. Diverter shell. DETAILED DESCRIPTION

[0015] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0016] Example 1, see Figure 1 to Figure 7 As shown, a raw material grinder for coal gangue sintered thermal insulation bricks includes a chassis 1, a maintenance door 2 is movably installed on the chassis 1, a control panel is installed on the chassis 1, a feed hopper 3 is fixedly connected to the chassis 1, and further includes: A centrifugal shaking separation structure 4 is installed in the chassis 1, and the centrifugal shaking separation structure 4 includes a rotating longitudinal shaking mechanism 5 connected to the chassis 1. Two groups of telescopic material guiding mechanisms 6 are installed in the chassis 1. The two groups of telescopic material guiding mechanisms 6 are movably connected to the rotating longitudinal shaking mechanism 5. A limiting abutment mechanism 7 connected to the rotating longitudinal shaking mechanism 5 is installed on the telescopic material guiding mechanism 6. The limiting abutment mechanism 7 is used to provide longitudinal limitation for the rotating longitudinal shaking mechanism 5. The telescopic material guiding mechanism 6 is fixedly connected to a half bucket body 8 arranged below the rotating longitudinal shaking mechanism 5. When the two groups of half bucket bodies 8 abut against each other, the two groups of half bucket bodies 8 together constitute a group of funnels; A wide-mouth aggregate grinding structure 9 is arranged at the lower part of the telescopic material guiding mechanism 6, and the wide-mouth aggregate grinding structure 9 is fixedly connected to the chassis 1; A fine grinding structure 10 is installed in the chassis 1 , and the fine grinding structure 10 is arranged below the half bucket body 8 , and the fine grinding structure 10 is arranged below the wide-mouth aggregate grinding structure 9 .

[0017] The raw material is put into the feed hopper 3, and then the raw material slides along the feed hopper 3 to the rotating longitudinal shaking mechanism 5. The rotating longitudinal shaking mechanism 5 screens the raw material during vibration, so that a part of the raw material passes through the rotating longitudinal shaking mechanism 5 and falls into the funnel composed of two groups of half bucket bodies 8, and then the fallen raw material falls to the fine grinding structure 10 for fine grinding. When it is necessary to feed another part of the raw material on the rotating longitudinal shaking mechanism 5 to the wide-mouth aggregate grinding structure 9, the limiting abutment mechanism 7 and the rotating longitudinal shaking mechanism 5 are mutually engaged, thereby limiting the longitudinal movement of the rotating longitudinal shaking mechanism 5. At this time, the rotating longitudinal shaking mechanism 5 rotates centrifugally, so that the raw material on the rotating longitudinal shaking mechanism 5 is thrown away to the telescopic material guiding mechanism 6, and then the telescopic material guiding mechanism 6 guides the raw material into the wide-mouth aggregate grinding structure 9. After the raw material is preliminarily ground and refined by the wide-mouth aggregate grinding structure 9, the preliminarily ground raw material falls from the wide-mouth aggregate grinding structure 9 into the fine grinding structure 10, thereby finely grinding the raw material together. The present invention utilizes vibration screening to separate bulk raw materials from the raw materials of the present invention, and then uses centrifugation to allow the bulk raw materials to enter the wide-mouth aggregate grinding structure 9 for preliminary grinding and refining operations, and then uses the fine grinding structure 10 for fine grinding operations, thereby performing graded grinding operations to improve grinding continuity and production efficiency.

[0018] In one case of the present embodiment, the rotating longitudinal shaking mechanism 5 includes a fixed frame 11 fixedly connected to the chassis 1, the fixed frame 11 is fixedly connected to a central motor 12, the fixed frame 11 is fixedly connected to a first active telescopic frame 13, the first active telescopic frame 13 can be an electric telescopic frame or a hydraulic telescopic frame, the output shaft of the central motor 12 is fixedly connected to a prism 14, the prism 14 is slidably connected to a sleeve shaft 15, a return spring is installed between the prism 14 and the sleeve shaft 15, the sleeve shaft 15 is fixedly connected to a disk body 16, a plurality of groups of extrusion blocks 17 are fixedly installed on the disk body 16, and the sleeve shaft 15 is fixedly connected to a limit The abutment mechanism 7 is adapted to an inner concave block 18, and a first electromagnet 19 is fixedly installed in the inner concave block 18. The first electromagnet 19 is connected to a magnetic pin 20 through a first spring. The magnetic pin 20 slides with the inner concave block 18, and the magnetic pin 20 is movably connected to a skeleton 21 movably connected to the inner concave block 18. A plurality of groups of screens 22 are fixedly installed on the skeleton 21. Both the skeleton 21 and the screens 22 are movably connected to the telescopic material guiding mechanism 6. A protruding strip 23 is fixedly installed on the skeleton 21. The first active telescopic frame 13 is fixedly connected to a plurality of frame borders 24, and the plurality of frame borders 24 are fixedly connected to a plurality of groups of impact rods 25 adapted to the extrusion block 17. The central motor 12 drives the prism 14 to rotate, the prism 14 drives the sleeve shaft 15 to rotate, the sleeve shaft 15 drives the disc 16 to rotate, the rotating disc 16 drives the extrusion block 17 to rotate, so that the extrusion block 17 and the impact rod 25 are squeezed against each other, so that the extrusion block 17 moves downward, the extrusion block 17 drives the sleeve shaft 15 to move downward through the disc 16, and then under the pull of the reset spring, the sleeve shaft 15 is reset, so that the sleeve shaft 15 reciprocates, and the sleeve shaft 15 drives the inner concave block 18 to reciprocate. When the magnetic pin 20 is slidably inserted into the inner concave block 18 and the skeleton 21, the skeleton 21 moves with the inner concave block 18. Move, so that the screen 22 performs a vibrating screening operation. When the skeleton 21 and the screen 22 are required to perform only a rotating operation, the limiting abutment mechanism 7 limits the longitudinal movement of the inner concave block 18 by abutting the inner concave block 18, and the first active telescopic frame 13 drives the multi-frame 24 away from the extrusion block 17, so that the extrusion block 17 cannot collide with the impact rod 25. At this time, the inner concave block 18, the skeleton 21, and the screen 22 all rotate, and when the first electromagnet 19 magnetically attracts the magnetic pin 20, the magnetic pin 20 slips off the skeleton 21, thereby facilitating personnel to disassemble the skeleton 21 and then replace the screen 22.

[0019] In one case of this embodiment, the telescopic material guiding mechanism 6 includes a frame 26 fixedly connected to the chassis 1, a support plate 27 is fixedly mounted on the frame 26, a plurality of groups of limit clamp strips 28 are mounted on the chassis 1, a slide 29 is slidably mounted on the support plate 27, the slide 29 is fixedly connected to the half bucket body 8, racks 30 slidably connected to the limit clamp strips 28 are fixedly mounted on both sides of the slide 29, two groups of first motors 31 are fixedly connected to the frame 26, and the output shaft of the first motor 31 is fixedly connected to The rack 30 is meshed with a gear 32, and the slide 29 is fixedly connected to a baffle 33 movably connected to the skeleton 21. The baffle 33 is movably connected to the screen 22. A recess 34 is provided on the baffle 33, and the baffle 33 is fixedly connected to a material guide frame 35 adapted to the recess 34. A second active telescopic frame 36 is fixedly installed on the material guide frame 35, and a moving end of the second active telescopic frame 36 is fixedly connected to a baffle 37 movably connected to the recess 34. The slide 29 is connected to a limiting abutment mechanism 7. The first motor 31 drives the gear 32 to rotate, and the gear 32 drives the rack 30 to slide during the rotation, and the rack 30 drives the slide 29 to move, so that the slide 29 drives the half bucket bodies 8 to move away from each other, and under the drive of the slide 29, the enclosures 33 move away from each other, so that the enclosures 33 and the skeleton 21 are separated from each other, so that it is convenient for people to take the skeleton 21, and the second active telescopic frame 36 drives the baffle 37 to disengage from the recess 34, so that the raw materials thrown off the screen 22 pass through the recess 34 and fall on the guide frame 35, and then the raw materials slide from the guide frame 35 into the wide-mouth aggregate grinding structure 9.

[0020] In one case of this embodiment, the position-limiting abutment mechanism 7 includes a third active telescopic frame 38 fixedly connected to the slide 29, and a protruding block 39 adapted to the inner concave block 18 is fixedly connected to the movable end of the third active telescopic frame 38. The third active telescopic frame 38 is used to adjust the position of the protruding block 39. When the protruding block 39 is inserted into the inner concave surface of the inner concave block 18, the protruding block 39 provides longitudinal movement limitation for the inner concave block 18, and the protruding block 39 provides rotation support for the inner concave block 18.

[0021] In one case of the present embodiment, the wide-mouth aggregate grinding structure 9 includes a wide mouth 40 fixedly connected to the chassis 1, the wide mouth 40 is arranged below the material guide frame 35, a grinding cover 41 is fixedly installed at the bottom of the wide mouth 40, a second motor 42 is fixedly installed on the grinding cover 41, a grinding wheel 43 is fixedly connected to the output shaft of the second motor 42, the grinding wheel 43 is arranged in the grinding cover 41, a grinding sheet 44 is fixedly installed in the grinding cover 41, and the lower opening of the grinding cover 41 faces the fine grinding structure 10. The wide mouth 40 is arranged below the material guide frame 35, so that the wide mouth 40 collects the material falling from the material guide frame 35, and then the material enters the grinding cover 41, and under the driving of the second motor 42 on the grinding wheel 43, the material between the grinding wheel 43 and the grinding sheet 44 is ground and then put into the fine grinding structure 10, during which the fine grinding structure 10 continues to perform fine grinding operations.

[0022] In one case of this embodiment, the fine grinding structure 10 includes a conical cover 45 fixedly installed in the chassis 1, the conical cover 45 is arranged below the half bucket body 8, the conical cover 45 is arranged below the grinding cover 41, the conical cover 45 is fixedly connected to a hole frame 46, a plurality of material leakage ports 47 are provided on the hole frame 46, the hole frame 46 is fixedly connected to a third motor 48, and the output shaft of the third motor 48 is fixedly connected to a grinding block 49. The raw material falling from the half bucket body 8 falls into the conical cover 45, and then the raw material falls to the grinding block 49 through the material leakage port 47, and the third motor 48 drives the grinding block 49 to rotate, thereby finely grinding the material.

[0023] Embodiment 2, based on embodiment 1, refer to Figure 1 A diverter shell 50 is fixedly mounted on the top of the perforated frame 46, and the diverter shell 50 is arranged below the half bucket body 8. The diverter shell 50 is used to collect the raw materials falling from the half bucket body 8, and divert the collected raw materials to each leakage port 47, so as to redistribute the raw materials falling from the half bucket body 8.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A raw material grinder for coal gangue sintered thermal insulation bricks, comprising a chassis, a maintenance door movably mounted on the chassis, a feed hopper fixedly connected to the chassis, characterized in that: Also includes: A centrifugal shaking separation structure installed in the chassis, the centrifugal shaking separation structure includes a rotating longitudinal shaking mechanism connected to the chassis, two sets of telescopic material guiding mechanisms are installed in the chassis, the two sets of telescopic material guiding mechanisms are movably connected to the rotating longitudinal shaking mechanism, a limiting abutment mechanism connected to the rotating longitudinal shaking mechanism is installed on the telescopic material guiding mechanism, the limiting abutment mechanism is used to provide longitudinal limit for the rotating longitudinal shaking mechanism, the telescopic material guiding mechanism is fixedly connected to a half bucket body arranged below the rotating longitudinal shaking mechanism, when the two sets of half bucket bodies abut against each other, the two sets of half bucket bodies together form a group of funnels; A wide-mouth aggregate grinding structure is arranged below the telescopic material guiding mechanism, and the wide-mouth aggregate grinding structure is fixedly connected to the chassis; A fine grinding structure is installed in the chassis, wherein the fine grinding structure is arranged below the half bucket body and below the wide-mouth aggregate grinding structure.

2. The raw material grinder for coal gangue sintered thermal insulation brick according to claim 1, characterized in that: The rotating longitudinal shaking mechanism includes a fixed frame fixedly connected to the chassis, the fixed frame is fixedly connected to a central motor, the fixed frame is fixedly connected to a first active telescopic frame, the output shaft of the central motor is fixedly connected to a prism, the prism is slidably connected to a sleeve shaft, a reset spring is installed between the prism and the sleeve shaft, the sleeve shaft is fixedly connected to a disk body, a plurality of groups of extrusion blocks are fixedly installed on the disk body, the sleeve shaft is fixedly connected to an inner concave block adapted to a limit abutment mechanism, a first electromagnet is fixedly installed in the inner concave block, the first electromagnet is connected to a magnetic pin through a first spring, the magnetic pin slides with the inner concave block, the magnetic pin is movably connected to a skeleton movably connected to the inner concave block, a plurality of groups of screens are fixedly installed on the skeleton, a protruding strip is fixedly installed on the skeleton, the first active telescopic frame is fixedly connected to a plurality of borders, and the plurality of borders are fixedly connected to a plurality of groups of impact rods adapted to the extrusion blocks.

3. The raw material grinder for coal gangue sintered thermal insulation bricks according to claim 2, characterized in that: The telescopic material guiding mechanism comprises a frame fixedly connected to the chassis, the frame is fixedly mounted with a support plate, the chassis is mounted with multiple groups of limit clamps, a slide is slidably mounted on the support plate, the slide is fixedly connected to the half bucket body, racks slidably connected to the limit clamps are fixedly mounted on both sides of the slide, the frame is fixedly connected with two groups of first motors, the output shaft of the first motor is fixedly connected with a gear meshing with the rack, the slide is fixedly connected with an enclosure movably connected to the skeleton, the enclosure is movably connected to the screen, a notch is provided on the enclosure, the enclosure is fixedly connected with a material guiding frame adapted to the notch, a second active telescopic frame is fixedly mounted on the material guiding frame, a moving end of the second active telescopic frame is fixedly connected with a baffle movably connected to the notch, and the slide is connected to the limit abutment mechanism.

4. The raw material grinder for coal gangue sintered thermal insulation bricks according to claim 3, characterized in that: The position-limiting abutment mechanism comprises a third active telescopic frame fixedly connected to the slide, and a protruding block matched with the inner concave block is fixedly connected to the moving end of the third active telescopic frame.

5. The raw material grinder for coal gangue sintered thermal insulation bricks according to claim 4, characterized in that: The wide-mouth aggregate grinding structure includes a wide mouth cover fixedly connected to the chassis, the wide mouth cover is arranged below the material guide frame, a grinding cover is fixedly installed on the bottom of the wide mouth cover, a second motor is fixedly installed on the grinding cover, a grinding wheel is fixedly connected to the output shaft of the second motor, a grinding sheet is fixedly installed in the grinding cover, and the lower opening of the grinding cover faces the fine grinding structure.

6. The raw material grinder for coal gangue sintered thermal insulation bricks according to claim 5, characterized in that: The fine grinding structure includes a conical cover fixedly installed in the chassis, the conical cover is arranged below the half bucket body, the conical cover is arranged below the grinding cover, the conical cover is fixedly connected to a hole frame, a plurality of material leakage ports are provided on the hole frame, the hole frame is fixedly connected to a third motor, and the output shaft of the third motor is fixedly connected to a grinding block.

7. The raw material grinder for coal gangue sintered thermal insulation bricks according to claim 6, characterized in that: A flow-dividing shell is fixedly installed on the top of the hole frame, and the flow-dividing shell is arranged below the half bucket body.

Images