Coal mine underground movable slurry filling system

Abstract

The utility model discloses a coal mine underground movable slurry filling system which comprises a crushing and stirring system, the crushing and stirring system is connected with a stirring barrel through a pipeline, the stirring barrel is connected with a filling pump through a pipeline, and the stirring barrel and the filling pump are both installed on a flat car. According to the underground movable slurry filling system for the coal mine, modular assembly, movable arrangement and flexible combination are achieved, underground tunneling gangues or roadway bottom-lifting gangues can be treated on site, the gangues are prevented from entering a coal flow main system, the quality of raw coal is improved, and underground gangue pulverizing, slurrying and slurry filling operation is achieved; the system can be flexibly combined to serve as an underground crushing system matched with solid filling, and preparation of underground bottoming aggregate can be achieved by adding a screening system.

Description

Technical Field

[0001] The utility model belongs to the technical field of underground coal mine filling equipment and relates to an underground mobile slurry filling system. Background Art

[0002] The integrated green mining technology of coal mining, selection and filling can effectively improve the recovery rate of coal resources and the utilization rate of underground space, realize the process of not lifting mine gangue, increase the effective lifting volume of the main shaft and the quality of raw coal selected by the coal preparation plant on the surface, and reduce the impact of mining on the ground through underground gangue filling, effectively protecting the ground ecological environment and realizing efficient and green mining in the mine.

[0003] Gangue underground filling can be divided into solid, paste and slurry filling according to the characteristics of the filling materials. Solid filling refers to the use of gangue filling equipment to throw gangue into the goaf or abandoned tunnels to complete the gangue filling operation. Gangue can come from the ground coal preparation plant or from underground tunneling gangue or gangue after selection in the underground coal preparation plant. The gangue crushing system can be arranged on the ground or underground; paste filling refers to the use of solid wastes such as gangue and fly ash generated by coal mines or power plants, supplemented with cement and water to make a paste, which is then pumped to the underground for filling. In the projects currently implemented, the paste preparation process is all arranged on the ground; gangue slurry filling refers to the use of solid wastes such as gangue to be crushed and ground into a certain particle size, and then water is added to make a slurry of a specific concentration, which is then pumped to the underground goaf for filling. The gangue crushing and slurry making system can be arranged on the ground, underground, or in combination with above and below ground.

[0004] Regardless of solid filling or slurry filling, the crushing system or pulping system currently installed underground adopts a large chamber fixed layout. Therefore, there is an urgent need for an underground mobile slurry filling system. Utility Model Content

[0005] The utility model aims to provide a mobile slurry filling system for coal mines, which solves the problems in the prior art that it is difficult for excavation waste rock and selected waste rock to enter the filling system at the same time, and that the distance for conveying crushed waste rock materials or slurry-made materials to the goaf is too long.

[0006] The technical solution adopted by the utility model is a mobile slurry filling system in an underground coal mine, comprising a crushing and stirring system, wherein the crushing and stirring system pipeline is connected with a stirring barrel, the stirring barrel pipeline is connected with a filling pump, and both the stirring barrel and the filling pump are installed on a flatbed truck.

[0007] The utility model is also characterized in that:

[0008] The crushing and mixing system includes a feeding system, which is sequentially connected to a primary crushing system, a secondary crushing system, a finished material buffer system and a primary mixing system. The feeding system, the primary crushing system, the secondary crushing system, the finished material buffer system and the primary mixing system are independently installed on a flatbed truck.

[0009] The feeding system includes a No. Ⅰ transfer machine, which is equipped with a receiving hopper and an iron remover. The No. Ⅰ transfer machine is connected to the primary crushing system.

[0010] The primary crushing system includes a No. Ⅱ transfer machine, on the top of which a primary crusher is installed, the primary crusher is connected to the No. Ⅰ transfer machine, and the No. Ⅱ transfer machine is connected to the secondary crushing system.

[0011] The secondary crushing system includes No. III transfer machine and secondary crusher. The secondary crusher is installed on the top of No. III transfer machine. The secondary crusher is connected to No. II transfer machine, and No. III transfer machine is connected to the finished material buffer system.

[0012] The finished material buffer system includes a No. Ⅳ transfer machine, on the top of which a finished product hopper is installed, and the No. Ⅳ transfer machine is connected to the primary mixing system.

[0013] The primary mixing system includes a screw weighing conveyor, the screw weighing conveyor is connected to a mixer, a water inlet pipe is also connected to the top of the mixer, and the mixer is connected to a mixing barrel through a pipeline.

[0014] Two sets of stirring devices are arranged inside the stirring barrel.

[0015] 1. The beneficial effects of the utility model are as follows: the mobile slurry filling system for underground coal mines in the utility model realizes modular assembly, mobile layout, and flexible combination, and can dispose of underground excavation gangue or tunnel bottom gangue on site, thus avoiding gangue from entering the main coal flow system and improving the quality of raw coal.

[0016] 2. This system can realize underground gangue powder making, pulping and slurry filling operations; it can also be used as an underground crushing system for solid filling through flexible combination, and the preparation of underground bottom aggregate can be achieved by adding a screening system. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a mobile slurry filling system for underground coal mines.

[0018] In the figure, 1. Crushing and mixing system, 2. Mixing barrel, 3. Filling pump;

[0019] 101. Feeding system, 102. Primary crushing system, 103. Secondary crushing system, 104. Finished material buffer system, 105. Primary mixing system;

[0020] 10101. Transfer machine No. I, 10102. Receiving hopper, 10103. Iron remover, 10201. Transfer machine No. II, 10202. Primary crusher, 10301. Transfer machine No. III, 10302. Secondary crusher, 10401. Transfer machine No. IV, 10402. Finished product hopper, 10501. Screw weighing conveyor, 10502. Mixer, 10503. Water inlet pipe. DETAILED DESCRIPTION

[0021] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0022] The utility model coal mine underground mobile slurry filling system, such as Figure 1As shown, it includes a mixing barrel 2, and the two sides of the mixing barrel 2 are respectively connected to the crushing and mixing system 1 and the filling pump through pipelines. The mixing barrel and the filling pump are both installed on a flatbed truck. The crushing and mixing system 1 includes a feeding system 101, and the feeding system 101 is sequentially connected to a primary crushing system 102, a secondary crushing system 103, a finished material buffer system 104 and a primary mixing system 105. The feeding system 101, the primary crushing system 102, the secondary crushing system 103, the finished material buffer system 104 and the primary mixing system 105 are all independently installed on the flatbed truck. The feeding system 10 1 includes a No. I transfer machine 10101, which is equipped with a receiving hopper 10102. The No. I transfer machine 10101 is also equipped with an iron remover 10103. The No. I transfer machine 10101 is connected to the primary crushing system 102. The primary crushing system 102 includes a No. II transfer machine 10201. The No. II transfer machine 10201 is equipped with a primary crusher 10202 on the top. The primary crusher 10202 performs a rough crushing operation. The primary crusher 10201 is connected to the No. I transfer machine 10101. The No. II transfer machine 10201 is connected to the secondary crushing system 103, the secondary crushing system 103 includes a No. III transfer machine 10301 and a secondary crusher 10302, the secondary crusher 10302 is installed on the top of the No. III transfer machine 10301, the secondary crusher 10302 performs coarse and fine operations, the secondary crusher 10302 is connected to the No. II transfer machine 10301, the No. III transfer machine 10301 is connected to the finished product buffer system 104, the finished product buffer system 104 includes a No. IV transfer machine 10401, the No. IV transfer machine 10401 is equipped with a finished product hopper 10402, the finished product hopper 10402 enters Finished material buffering is carried out, and the No. IV transfer machine 10401 is connected to the primary mixing system 105. The primary mixing system 105 includes a screw weighing conveyor 10501, and the screw weighing conveyor 10501 is connected to a mixer 10502. The top of the mixer 10502 is also connected to a water inlet pipe 10503. The water inlet pipe 10503 adds water to the slurry preparation of the mixer 10502. The mixer 10502 is connected to the mixing barrel 2 through a pipeline. Two sets of stirring devices are arranged inside the mixing barrel 2. The stirring devices perform secondary stirring on the slurry after stirring by the mixer 10502.

[0023] Example 1

[0024] The mobile slurry filling system for underground coal mines proposed in this embodiment includes a crushing and mixing system 1, wherein the crushing and mixing system 1 is connected to a mixing barrel 2 through a pipeline, and the mixing barrel 2 is connected to a filling pump 3 through a pipeline, and both the mixing barrel 2 and the filling pump 3 are installed on a flatbed truck, and the crushing and mixing system 1 includes a feeding system 101, and the feeding system 101 is connected to a primary crushing system 102, a secondary crushing system 103, a finished material cache system 104 and a primary mixing system 105 in sequence, and the feeding system 101, the primary crushing system 102, the secondary crushing system 103, the finished material cache system 104 and the primary mixing system 105 are all independently installed on the flatbed truck, and two sets of stirring devices are arranged inside the mixing barrel 2.

[0025] Example 2

[0026] The mobile slurry filling system for coal mines proposed in this embodiment includes a crushing and stirring system 1, wherein the crushing and stirring system 1 is connected to a stirring barrel 2 through a pipeline, and the stirring barrel 2 is connected to a filling pump 3 through a pipeline, and the stirring barrel 2 and the filling pump 3 are both installed on a flatbed truck, and the crushing and stirring system 1 includes a feeding system 101, and the feeding system 101 is sequentially connected to a primary crushing system 102, a secondary crushing system 103, a finished material buffer system 104 and a primary stirring system 105, wherein the feeding system 101, the primary crushing system The system 102, the secondary crushing system 103, the finished material buffer system 104 and the primary mixing system 105 are all independently installed on the flatbed truck. The feeding system 101 includes a No. I transfer machine 10101, and the No. I transfer machine 10101 is equipped with a receiving hopper 10102. The No. I transfer machine 10101 is also equipped with an iron remover 10103. The No. I transfer machine 10101 is connected to the primary crushing system 102. The primary crushing system 102 includes a No. II transfer machine 10201, and the No. II transfer machine 10201 A primary crusher 10202 is installed on the top, the primary crusher 10202 is connected to the No. I transfer machine 10101, the No. II transfer machine 10201 is connected to the secondary crushing system 103, the secondary crushing system 103 includes the No. III transfer machine 10301 and the secondary crusher 10302, the secondary crusher 10302 is installed on the top of the No. III transfer machine 10301, the secondary crusher 10302 is connected to the No. II transfer machine 10201, the No. III transfer machine 10301 is connected to the finished material buffer system 10 4, the finished material buffer system 104 includes a No. IV transfer machine (0401, a finished product hopper 10402 is installed on the top of the No. IV transfer machine 10401, the No. IV transfer machine 10401 is connected to the primary mixing system 105, the primary mixing system 105 includes a screw weighing conveyor 10501, the screw weighing conveyor 10501 is connected to a mixer 10502, the top of the mixer 10502 is also connected to a water inlet pipe 10503, and the mixer 10502 is connected to the mixing barrel 2 through a pipeline.

[0027] Example 3

[0028] The mobile slurry filling system for coal mines proposed in this embodiment includes a crushing and stirring system 1, wherein the crushing and stirring system 1 is connected to a stirring barrel 2 through a pipeline, and the stirring barrel 2 is connected to a filling pump 3 through a pipeline, and the stirring barrel 2 and the filling pump 3 are both installed on a flatbed truck, and the crushing and stirring system 1 includes a feeding system 101, and the feeding system 101 is sequentially connected to a primary crushing system 102, a secondary crushing system 103, a finished material buffer system 104 and a primary stirring system 105, and the feeding system 101, the primary crushing system 102, the secondary crushing system 103, the finished material buffer system 104 and the primary stirring system 105. 03. The finished material buffer system 104 and the primary mixing system 105 are independently installed on the flatbed truck. The feeding system 101 includes a No. I transfer machine 10101, which is equipped with a receiving hopper 10102. The No. I transfer machine 10101 is also equipped with an iron remover 10103. The No. I transfer machine 10101 is connected to the primary crushing system 102. The primary crushing system 102 includes a No. II transfer machine 10201, and a primary crusher 10202 is installed on the top of the No. II transfer machine 10201. The primary crusher 10103 is connected to the primary crushing system 102. 202 is connected to the No. I transfer machine 10101, the No. II transfer machine 10201 is connected to the secondary crushing system 103, the secondary crushing system 103 includes the No. III transfer machine 10301 and the secondary crusher 10302, the secondary crusher 10302 is installed on the top of the No. III transfer machine 10301, the secondary crusher 10302 is connected to the No. II transfer machine 10201, the No. III transfer machine 10301 is connected to the finished product buffer system 104, the finished product buffer system 104 includes the No. IV transfer machine (0401, No. IV transfer machine 10 A finished product hopper 10402 is installed on the top of 401, and the No. IV transfer machine 10401 is connected to the primary mixing system 105. The primary mixing system 105 includes a screw weighing conveyor 10501, and the screw weighing conveyor 10501 is connected to a mixer 10502. The top of the mixer 10502 is also connected to a water inlet pipe 10503. The mixer 10502 is connected to the mixing barrel 2 through a pipeline. The mixer 10502 is connected to the mixing barrel 2 through a pipeline. The stirring device performs secondary stirring on the slurry after stirring by the mixer 10502.

[0029] The utility model coal mine underground mobile slurry filling system has the following working principle: underground excavation gangue or tunnel bottom gangue is transported to the receiving hopper 10102 above the feeding end of No. I transfer machine 10101 by a loader, and after iron removal by the iron remover 10103, it is transported to the primary crusher 10202 by the No. I transfer machine 10101 for coarse crushing operation, and the coarse crushed material is transported to the secondary crusher 10302 by the No. II transfer machine 10201 for fine crushing operation, and the finished material after fine crushing is transported to the finished product hopper 10402 by the No. III transfer machine 10301 for finished product material buffering, and the buffered material is fed into the IV Transfer machine No. 10401 transfers the gangue into the screw weighing conveyor 10501 for weighing the gangue powder. After weighing, the material enters the mixer 10502. At the same time, the mixer 10502 adds water in proportion through the water inlet pipe 10503 for mixing. After mixing, the slurry is transported to the mixing barrel 2 through a pipeline. Two sets of stirring devices are arranged on the upper part of the mixing barrel 2 to perform secondary stirring on the slurry after mixing by the mixer 10502. The final slurry after mixing in the mixing barrel 2 is transported to the filling pump 3 through a pipeline. The filling pump 3 uses its own self-priming function to suck the finished slurry in the mixing barrel 2 into the pump and then pumps the slurry to the goaf for filling through the piston movement.

Claims

1. Mobile slurry filling system for underground coal mines, characterized in that: It comprises a crushing and stirring system (1), wherein the crushing and stirring system (1) is connected to a stirring barrel (2) through a pipeline, and the stirring barrel (2) is connected to a filling pump (3) through a pipeline, and the stirring barrel (2) and the filling pump (3) are both installed on a flatbed vehicle; The crushing and mixing system (1) comprises a feeding system (101), wherein the feeding system (101) is sequentially connected to a primary crushing system (102), a secondary crushing system (103), a finished material buffer system (104) and a primary mixing system (105), and the feeding system (101), the primary crushing system (102), the secondary crushing system (103), the finished material buffer system (104) and the primary mixing system (105) are all independently installed on a flatbed vehicle; The feeding system (101) comprises a No. I transfer machine (10101), the No. I transfer machine (10101) is equipped with a receiving hopper (10102), the No. I transfer machine (10101) is also equipped with an iron remover (10103), and the No. I transfer machine (10101) is connected to the primary crushing system (102); The primary crushing system (102) comprises a No. II transfer machine (10201), a primary crusher (10202) is installed on the top of the No. II transfer machine (10201), the primary crusher (10202) is connected to the No. I transfer machine (10101), and the No. II transfer machine (10201) is connected to the secondary crushing system (103); The secondary crushing system (103) comprises a No. III transfer machine (10301) and a secondary crusher (10302), wherein the secondary crusher (10302) is installed on the top of the No. III transfer machine (10301), the secondary crusher (10302) is connected to the No. II transfer machine (10201), and the No. III transfer machine (10301) is connected to the finished material buffer system (104); The finished product buffer system (104) includes a No. IV transfer machine (10401), a finished product hopper (10402) is installed on the top of the No. IV transfer machine (10401), and the No. IV transfer machine (10401) is connected to the primary mixing system (105); The primary mixing system (105) comprises a screw weighing conveyor (10501), the screw weighing conveyor (10501) is connected to a mixer (10502), the top of the mixer (10502) is also connected to a water inlet pipe (10503), and the mixer (10502) is connected to a mixing barrel (2) via a pipeline; Two sets of stirring devices are arranged inside the stirring barrel (2).

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