CN209959291U - Grouting vehicle for backfilling coal mining roadway - Google Patents
Grouting vehicle for backfilling coal mining roadway Download PDFInfo
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- CN209959291U CN209959291U CN201920234957.0U CN201920234957U CN209959291U CN 209959291 U CN209959291 U CN 209959291U CN 201920234957 U CN201920234957 U CN 201920234957U CN 209959291 U CN209959291 U CN 209959291U
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- coal mining
- baffle
- mining roadway
- construction machine
- backfilling
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Abstract
A grouting vehicle for filling a coal mining roadway and application thereof belong to the technical field of coal mining roadway backfilling and comprise a crawler-type travelling mechanism, a concrete pump, a hydraulic oil cylinder and a baffle plate, wherein the hydraulic oil cylinder is arranged at the front part of the top of a frame of the crawler-type travelling mechanism, and the concrete pump is arranged at the rear part of the frame of the crawler-type travelling mechanism; the telescopic end of the hydraulic oil cylinder is connected with a baffle positioned in front of the crawler type travelling mechanism; the conveying pipe of the concrete pump is connected with a grouting opening arranged at the top of the baffle; the filling machine for filling the coal mining roadway comprises the grouting vehicle, a belt conveyor, a stirrer, a crusher and a forklift, and can be used for filling coal gangue serving as main materials of fillers in a large quantity, the fillers in a filling area are formed into filling bodies through baffles, the hydraulic oil cylinders push the baffles to extrude the filling bodies, filling gaps are eliminated, and the strength and compactness of the filling bodies are greatly enhanced.
Description
Technical Field
The invention belongs to the technical field of coal mining roadway backfilling, and particularly relates to a grouting vehicle for backfilling a coal mining roadway and a construction machine for backfilling the coal mining roadway.
Background
The backfill coal mining roadway solves the problem of influence of mining subsidence on ground buildings and industrial and agricultural production, the problem of environmental harm caused by stacking coal gangue on the ground, and the common problems of backfill after mining of pressed coal under the ground (underwater, under roads and under buildings) in the coal industry.
At present, after the side wall coal pressing of the open pit coal mine is mined, the backfilling of the coal mining tunnel for the side wall coal pressing is generally carried out by adopting a method of drilling and grouting at the top of the coal mining tunnel. Although the method solves the problem of backfilling of the coal mining roadway, the method is adopted for backfilling, a conical filling body is easily formed in the coal mining roadway, a huge filling gap is formed, the ground is sunk, and the later treatment work is influenced; moreover, in the process of stripping and mining coal in the early stage of the open pit coal mine, a large amount of coal gangue is generated and stacked in a stacking area, so that the damage to the surrounding environment is caused; even if the coal mining roadway is completely filled, the compactness and strength of the filling body in the roadway are not high, the ground is easily sunk, and the later treatment work is also influenced.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the grouting vehicle which can inject the filling material into the filling space in the coal mining roadway at high pressure, can tightly connect the filling material in the filling space to the top and can further improve the compactness of the filling material in the filling space; the construction machine can not only consume a large amount of coal gangue, but also eliminate filling gaps of the coal mining roadway, also improve the compactness of a filling body in the coal mining roadway, further improve the compressive strength of the filling body and more effectively prevent the subsidence of the ground.
To achieve the object of the present invention, we will use the following technical solutions.
The utility model provides a slip casting car of backfill coal mining tunnel which characterized in that: the grouting vehicle comprises a crawler-type travelling mechanism, a concrete pump, a hydraulic oil cylinder and a baffle, wherein the hydraulic oil cylinder is arranged on a vehicle frame of the crawler-type travelling mechanism, the telescopic end of the hydraulic oil cylinder is connected with the baffle arranged in front of the crawler-type travelling mechanism, the baffle, a working surface, a top plate, a bottom plate and left and right side walls of a coal mining roadway in front of the baffle form a filling space, the vehicle frame is also provided with the concrete pump, the concrete pump is provided with a feed hopper, and a conveying pipe of the concrete pump is communicated with the filling space through a grouting opening in the upper part of.
Preferably, the shape and size of the baffle plate are matched with the shape and size of the cross section of the coal mining roadway.
Preferably, the distance between the baffle and the working face of the coal mining roadway in front of the baffle is 5-10 m.
A construction machine for backfilling a coal mining roadway is characterized in that: the construction machine includes the following machines: forklift, rubbing crusher, mixer, band conveyer, slip casting car, use the forklift gives coal gangue on the feed inlet of rubbing crusher, the discharge gate of rubbing crusher with the feed inlet hookup of mixer, the discharge gate of mixer with the conveyer belt hookup of band conveyer's tail, the blanking mouth of the blanking fill of band conveyer's aircraft nose with the feed inlet of the feeder hopper of the concrete pump of slip casting car link up, the conveyer pipe of concrete pump passes through slip casting mouth on the baffle with the filling space intercommunication in baffle the place ahead.
Preferably, the construction machine further comprises a remote monitoring system, wherein the remote monitoring system is used for monitoring the operation condition of each machine in the construction machine.
Preferably, there is further a remote control system including an electric power control system for controlling electric power supply to each of the construction machines and a hydraulic control system; the hydraulic control system is used for controlling the operation of hydraulic execution components of each machine in the construction machine.
Preferably, the pulverizer comprises a coarse pulverizer and a fine pulverizer, wherein a feed inlet of the coarse pulverizer is used for receiving coal gangue, a discharge outlet of the coarse pulverizer is connected with a feed inlet of the fine pulverizer, and a discharge outlet of the fine pulverizer is connected with a feed inlet of the stirrer.
Preferably, the rear end of the frame of the grouting vehicle is fixedly connected with the front end of the frame of the nose of the belt conveyor.
Advantageous effects
The concrete pump of the grouting truck can inject the filling material into the filling space at high pressure, so that the filling density of the filling material in the filling space is improved, the filling material injected into the filling space can be tightly abutted through the extrusion of the hydraulic oil cylinder, the filling gap can be eliminated, and the compactness and the strength of a filling body formed in the filling space can be further increased; the pulverizer of the construction machine provided by the invention pulverizes the coal gangue, and then the pulverized coal gangue is stirred into concrete by the stirrer, wherein the concrete contains 80-90% of the coal gangue, so that a large amount of coal gangue can be used as a main material of a filling material for backfill operation, and the influence of coal gangue stacking on the surrounding environment can be eliminated; the grouting vehicle of the construction machine carries out backfilling operation from the innermost end of the coal mining roadway to the outside in a backward mode in a segmented mode, and the backfilling quality is guaranteed; the construction machine is also provided with a remote monitoring system and a remote control system, so that automatic control can be realized, and the backfill efficiency of the filling material is greatly improved; the backfilling coal mining roadway can reduce the damage degree of coal mining to stratum rocks, slow down the harm of mining collapse to ground buildings and industrial and agricultural industries, certainly bring a new approach to the mining of 'three lower' coal seams in China, and generate considerable economic, environmental and social benefits.
Drawings
Fig. 1 is a schematic structural view of a construction machine according to the present invention;
FIG. 2 is a schematic structural diagram of a grouting vehicle according to the invention;
FIG. 3 is a schematic view showing the connection of the coarse and fine crushers and the blender.
Detailed Description
The invention is further described with reference to the accompanying drawings and examples.
In one embodiment, as shown in fig. 1-2, the grouting vehicle 5 includes a crawler-type traveling mechanism 51, a concrete pump 52, a hydraulic cylinder 53 and a baffle 54, the hydraulic cylinder 53 is installed on a frame 511 of the crawler-type traveling mechanism 51, a telescopic end of the hydraulic cylinder 53 is fixedly connected with the baffle 54 arranged in front of the crawler-type traveling mechanism 51, the baffle 54 forms a filling space with a working face, a top plate, a bottom plate, left and right side walls of a coal mining roadway in front of the baffle 54, the frame 511 is also provided with the concrete pump 52, the concrete pump 52 has a feed hopper 521, and a conveying pipe 522 of the concrete pump 52 is communicated with the filling space through a grouting opening 541 in an upper portion of the baffle 54.
Preferably, the shape of the shield plate 54 matches the shape of the coal mining roadway cross section.
Preferably, the distance between the baffle plate 54 and the working face of the coal mining roadway in front of the baffle plate is 5-10 m.
The working principle of the grouting vehicle 5 is as follows: the grouting vehicle 5 pumps the filler into a filling space formed between the baffle 54 and the working surface of the coal mining roadway by using the high pressure of the concrete pump 52, and then pushes the baffle 54 to extrude the filler in the filling space by using the thrust of the hydraulic oil cylinder 53, so that the compactness of the filler is increased, the strength of the filler is improved, and the collapse of the ground can be well prevented.
In one embodiment, as shown in fig. 1-2, a construction machine for backfilling a coal mining roadway includes the following: forklift 1, rubbing crusher 2, mixer 3, band conveyer 4, slip casting car 5 use forklift 1 gives filler on the feed inlet of rubbing crusher 2, the discharge gate of rubbing crusher 2 pass through the chute with the feed inlet of mixer 3 is connected, the discharge gate of mixer 3 pass through conveyor belt with the conveyer belt hookup of band conveyer 4's tail 41, the blanking mouth of the blanking fill 43 of band conveyer 4's aircraft nose 42 with the feed inlet intercommunication of the feeder hopper 521 of slip casting car 5's concrete pump 52, concrete pump 52's conveyer pipe 522 passes through grouting opening on the baffle 54 with the filling space intercommunication in baffle 54 the place ahead.
Preferably, the belt conveyor 4 is a retractable belt conveyor or a walking belt conveyor.
In one embodiment, the construction machine further has a remote monitoring system for monitoring the operation of each machine in the construction machine.
In one embodiment, the construction machine further has a remote control system including an electric control system for controlling electric power supply to each of the construction machines and a hydraulic control system; the hydraulic control system is used for controlling the operation of hydraulic execution components of each machine in the construction machine.
In one embodiment, as shown in fig. 3, the pulverizer 2 comprises a coarse pulverizer 21 and a fine pulverizer 22, the forklift 1 supplies the material to the inlet of the coarse pulverizer 21, the outlet of the coarse pulverizer 21 is connected with the inlet of the fine pulverizer 22 through a chute, and the outlet of the fine pulverizer 22 is connected with the inlet of the blender 3.
In one embodiment, as shown in fig. 1, the rear end of the frame 511 of the grouting car 5 is fixedly connected with the front end of the frame 44 of the belt conveyor 4, so that when the hydraulic cylinder 53 pushes the baffle 54 to squeeze the concrete in the backfill space, the reaction force of the concrete on the hydraulic cylinder 53 is enhanced to resist the reaction force, the penetration between the blanking opening of the blanking hopper 43 and the feeding opening of the feeding hopper 521 is ensured, and the common advance and retreat between the belt conveyor 4 and the grouting car is ensured.
The construction method of the construction machine comprises the following steps: shoveling and conveying the coal gangue stacked in the original stacking area to a crusher 2 by using a forklift 1 for crushing; conveying the coal gangue crushed by the crusher 2 to a stirrer 3, adding water and a cementing material into the stirrer 3 according to the weight ratio, and stirring into concrete; the concrete mixed by the mixer 3 is conveyed to a belt conveyor 4; the belt conveyor 4 conveys concrete to a concrete pump 52 of the grouting vehicle 5, and the concrete pump 52 injects the concrete into a backfill space formed by a baffle 54 of the grouting vehicle 5, a working surface, a top plate, a bottom plate and two side walls of the coal mining roadway at the innermost end of the coal mining roadway at high pressure until the coal mining roadway is full of concrete; after the backfilling space is filled with concrete, a hydraulic oil cylinder 53 of the grouting vehicle 5 pushes a baffle 54 to extrude the concrete in the backfilling space, so that the concrete is tightly abutted; after the extrusion is finished, the belt conveyor 4 and the grouting car 5 are retracted backwards for a certain distance in the coal mining roadway, so that a second backfill space is formed between the baffle 54 of the grouting car 5 and the concrete extrusion working face, and the steps of the previous five steps are sequentially carried out, and the steps are repeated in a circulating mode until the whole coal mining roadway is backfilled.
Claims (8)
1. The utility model provides a slip casting car of backfill coal mining tunnel which characterized in that: the grouting vehicle comprises a crawler-type travelling mechanism, a concrete pump, a hydraulic oil cylinder and a baffle, wherein the hydraulic oil cylinder is arranged on a vehicle frame of the crawler-type travelling mechanism, the telescopic end of the hydraulic oil cylinder is connected with the baffle arranged in front of the crawler-type travelling mechanism, the baffle, a working surface, a top plate, a bottom plate and left and right side walls of a coal mining roadway in front of the baffle form a filling space, the vehicle frame is also provided with the concrete pump, the concrete pump is provided with a feed hopper, and a conveying pipe of the concrete pump is communicated with the filling space through a grouting opening in the upper part of.
2. The grouting vehicle for backfilling a coal mining roadway according to claim 1, wherein: the shape and the size of the baffle are matched with those of the cross section of the coal mining roadway.
3. The grouting vehicle for backfilling a coal mining roadway according to claim 1, wherein: the distance between the baffle and the working face of the coal mining roadway in front of the baffle is 5-10 m.
4. A construction machine for backfilling a coal mining roadway is characterized in that: the construction machine includes the following machines: forklift, rubbing crusher, mixer, band conveyer, slip casting car, use the forklift gives coal gangue on the feed inlet of rubbing crusher, the discharge gate of rubbing crusher with the feed inlet hookup of mixer, the discharge gate of mixer with the conveyer belt hookup of band conveyer's tail, the blanking mouth of the blanking fill of band conveyer's aircraft nose with the feed inlet of the feeder hopper of the concrete pump of slip casting car link up, the conveyer pipe of concrete pump pass through the slip casting mouth on the baffle of slip casting car with the filling space intercommunication in baffle the place ahead.
5. The construction machine for backfilling a coal mining roadway according to claim 4, wherein: the construction machine is also provided with a remote monitoring system, and the remote monitoring system is used for monitoring the operation condition of each machine in the construction machine.
6. The construction machine for backfilling a coal mining roadway according to claim 4 or 5, wherein: the construction machine further has a remote control system including an electric power control system for controlling power supply to each of the construction machines and a hydraulic control system; the hydraulic control system is used for controlling the operation of hydraulic execution components of each machine in the construction machine.
7. The construction machine for backfilling a coal mining roadway according to claim 4, wherein: the pulverizer comprises a coarse pulverizer and a fine pulverizer, wherein a feed inlet of the coarse pulverizer is used for receiving coal gangue, a discharge outlet of the coarse pulverizer is connected with a feed inlet of the fine pulverizer, and a discharge outlet of the fine pulverizer is connected with a feed inlet of the stirrer.
8. The construction machine for backfilling a coal mining roadway according to claim 4, wherein: the rear end of the frame of the grouting vehicle is fixedly connected with the front end of the frame of the nose of the belt conveyor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920234957.0U CN209959291U (en) | 2019-02-25 | 2019-02-25 | Grouting vehicle for backfilling coal mining roadway |
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| CN201920234957.0U CN209959291U (en) | 2019-02-25 | 2019-02-25 | Grouting vehicle for backfilling coal mining roadway |
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| CN209959291U true CN209959291U (en) | 2020-01-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667618A (en) * | 2019-02-25 | 2019-04-23 | 闫红世 | A kind of grouting vehicle backfilling coal cutting roadway |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667618A (en) * | 2019-02-25 | 2019-04-23 | 闫红世 | A kind of grouting vehicle backfilling coal cutting roadway |
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