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Waste rock filling material circulation crusher in mining area

A filling material and crusher technology, applied in grain processing and other directions, can solve the problems of affecting the filling efficiency of gangue and high labor cost.

Active Publication Date: 2020-10-16
CHONGQING VOCATIONAL INST OF ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the existing gangue pulverizers crush and granulate the gangue, they are all crushed once, and the gangue with a particle size of 50mm to 75mm is less, and it needs to be crushed multiple times, crushed and screened multiple times to achieve the desired result of the applicant. The optimal grade gangue particle size group required, which requires a lot of labor and cost, and will also affect the filling efficiency of gangue

Method used

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  • Waste rock filling material circulation crusher in mining area
  • Waste rock filling material circulation crusher in mining area
  • Waste rock filling material circulation crusher in mining area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A mining gangue filling material circulation crusher, as attached figure 1 As shown, the crushing box 8 and the circulation barrel 4 located on the right side of the crushing box 8 are included.

[0031] The upper part of the crushing box 8 is open, and a crushing group is arranged in the crushing box 8. The crushing group includes at least two crushing rollers 6. In this embodiment, two crushing rollers 6 form a crushing group. The two crushing rollers 6 are attached to each other, and the rotating shafts of the crushing rollers 6 pass through the crushing box 8 and are rotatably connected with the crushing box 8 . The rotation directions of the two crushing rollers 6 are opposite, and the main driving part is fixed on the crushing box 8 by fastening bolts. In this embodiment, the main driving part is a frequency conversion motor, and the output shaft of the frequency conversion motor is fixed coaxially with one of the crushing rollers 6 connected, the crushing roller...

Embodiment 2

[0047] The difference from Embodiment 1 is that, as attached image 3 And attached Figure 4 As shown, the side wall of the circulation barrel 4 is provided with several vibrating rods 19. In the present embodiment, the longitudinal section of the vibrating rod 19 is T-shaped, and the side wall on the right side of the circulating barrel 4 is provided with a thread that runs through the side wall of the circulating barrel 4. hole, the vibrating rod 19 is screwed into the threaded hole and is threadedly connected with the circulation bucket 4.

[0048] combined with Figure 4 And attached Figure 5 As shown, the upper surface of the helical blade 16 is provided with an elastic piece 20 , the elastic piece 20 is arranged along the helical direction of the helical blade 16 and the inner side of the elastic piece 20 is welded on the rotating shaft 15 , and the elastic piece 20 extends out of the helical blade 16 . A channel communicating with the material hole 162 is opened on ...

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Abstract

The invention relates to the technical field of crushing and discloses a mining area gangue filling material circular crusher. The mining area gangue filling material circular crusher comprises a crushing box opened in the upper part and a circulating barrel located on one side of the crushing box; a crushing group is rotatably connected in the crushing box, a screen is arranged below the crushinggroup, and the screen inclines downward and faces the circulating barrel; a discharge port and a feed inlet are separately formed in the upper and lower part of the side wall, close to the crushing box, of the circulating barrel, a hollow rotating shaft driven by a driving part is rotatably connected in the circulating barrel, a hollow spiral blade is fixed to the rotating shaft, a material holecommunicating to a cavity of the spiral blade is formed in the spiral blade, the cavity of the spiral blade communicates to a cavity of the rotating shaft, and a gap of 50-75 mm is reserved between the spiral blade and the circulating barrel. The mining area gangue filling material circular crusher can crush gangue circularly to grain sizes meeting the demand.

Description

technical field [0001] The invention relates to the technical field of crushing, in particular to a circulating crusher for gangue filling materials in mining areas. Background technique [0002] my country's "three under" coal pressure is huge, which restricts the sustainable development of coal mining areas, most of which are coal pressure under buildings. According to statistics, the amount of coal pressed under buildings in my country reaches about 8.7 billion tons, of which the largest amount of coal pressed under villages accounts for about 60%. For example, Yankuang Group's three-stage coal pressing is about 1.1 billion tons, of which 75% is under the village buildings; the total resource reserves of the Xuzhou mining area are only 374 million tons, and the three-stage coal pressing reaches 173 million tons, of which the village buildings 167 million tons of pressed coal. With the development of social economy, the ground buildings in the mining area are still incre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C23/16B02C23/12B02C23/20
CPCB02C23/12B02C23/16B02C23/20B02C2023/165
Inventor 王启春朱晓峻李天和邓军
Owner CHONGQING VOCATIONAL INST OF ENG