CN212671851U

CN212671851U - Combined filling system for underground mining and filling

Info

Publication number: CN212671851U
Application number: CN202021535478.1U
Authority: CN
Inventors: 娄广文; 李尚福; 胡崴; 李同鹏
Original assignee: Sinosteel Maanshan Institute Of Mining Research Engineering Investigation And Design Co ltd; Huawei National Engineering Research Center of High Efficient Cyclic and Utilization of Metallic Mineral Resources Co Ltd; Sinosteel Maanshan General Institute of Mining Research Co Ltd
Current assignee: Huawei National Engineering Research Center of High Efficient Cyclic and Utilization of Metallic Mineral Resources Co Ltd; Sinosteel Maanshan General Institute of Mining Research Co Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-03-09
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses a combined filling system for underground mining filling, which comprises a cement bin (7), a material collecting bin (3), a mixing drum (14) and a discharging hopper (17), wherein the lower part of the material collecting bin (3) is provided with a rubber belt conveyor (6), and a discharging port of the rubber belt conveyor (6) is positioned at the upper part of the mixing drum (14); a subtraction scale (9) is arranged at the bottom of the cement bin (7), a screw feeder (10) is arranged at the lower part of the subtraction scale (9), and the screw feeder (10) is connected with a feeding hole of the mixing drum (14) through a conveying pipeline; the bottom discharge port of the mixing drum (14) is connected with the feed port of the discharging hopper (17) through a slurry conveying pipe, and the discharge port of the discharging hopper (17) is connected with a gallery filling pipeline (21) through a drilling hole or a filling well (20). The utility model has the advantages of fill in succession, easy operation, suitability are strong, the dismantlement is convenient, the transportation is nimble, the time of building a station is short, the capital construction investment is few, the mine that possesses filling material all can adopt.

Description

Combined filling system for underground mining and filling

Technical Field

The utility model belongs to the technical field of underground mine filling system, especially, relate to a modular filling system.

Background

With the continuous improvement of national requirements on mine environment protection and safety production, the adoption of a filling method for treating the goaf is further emphasized and popularized. The filling method for treating the goaf not only reduces the ground pressure stress concentration, greatly reduces the collapse of the underground goaf and the roof fall and rib spalling of a roadway, effectively protects surface constructions and water bodies, reduces the occurrence of geological disasters, reduces the discharge amount of toxic substances such as waste residues and waste water, powerfully protects the surrounding environment of the mine, but also conforms to the idea of green mine, ecological mine and harmonious mine advocated by the country, is particularly in 'mining under three' and fills and treats the goaf as the basis of 'mining under three'. Meanwhile, the goaf mine is treated by filling, and the reserved ore pillars and top pillars can be stoped. Not only fully utilizes precious mineral resources of the mine, reduces the loss of the resources, but also increases the economic benefit of enterprises, and is urgent need for sustainable development of the enterprises.

The structure of the filling station is formed, the raw material source is the soul of a mine filling system, the mine adopting the filling method basically adopts a vertical sand silo, a small number of horizontal sand silos are used, and a large mine adopts a deep cone thickener which is filled continuously. The three kinds of sand storage and overflow equipment all use the mortar with lower concentration conveyed by the concentrating mill, have the problem of difficult dehydration, rarely achieve paste in the true meaning and have higher construction cost of filling stations. Particularly, the mine without the concentrating mill cannot obtain the tailings to fill and treat the goaf, and the old mine with the concentrating mill cannot obtain sufficient tailings when the goaf is treated in the later period, so that the goaf cannot be effectively treated, and geological disaster accidents occur in the goaf.

Some mines have large strike length of ore deposit, and in order to ensure self-sliding transportation of slurry, a plurality of filling stations need to be built, so that not only is the construction cost of the mines increased, but also the maintenance and repair costs are increased.

Disclosure of Invention

The utility model aims at providing an above-mentioned defect to prior art exists, but provide a complete equipment can wholly dismantle, drier such as tailings, rubble and cementitious material and hydroenergy are enough accurate batching, mix, adjustment, and the combination formula filling system that underground mine exploitation that ground paste concentration control is accurate, degree of automation is high is filled usefulness.

In order to achieve the above object, the utility model discloses an underground mine exploitation fills combination formula filling system of usefulness adopts following technical scheme:

the utility model discloses a combined filling system for underground mining filling, which comprises a cement bin, a material collecting bin, a mixing drum and a blanking hopper, wherein the side edge of the material collecting bin is provided with a loader for loading dry materials, the lower part of the material collecting bin is provided with a rubber belt conveyor, and a discharge port of the rubber belt conveyor is positioned at the upper part of the mixing drum; a subtraction scale is arranged at the bottom of the cement bin, a screw feeder is arranged at the lower part of the subtraction scale, and the screw feeder is connected with a feeding hole of the mixing drum through a conveying pipeline; the bottom discharge port of the mixing drum is connected with the feed port of the blanking hopper through a slurry conveying pipe, and the discharge port of the blanking hopper is connected with a roadway filling pipeline through a drilling hole or a filling well.

For the convenience of adjusting the thick liquids concentration in churn, the lower hopper, the utility model discloses still be equipped with clean water basin, water pump, the inlet tube and the clean water basin of water pump are connected, and the supply channel of water pump is connected with the water inlet of churn, the water inlet of lower hopper respectively, is equipped with the governing valve on the supply channel of water pump, and the governing valve is arranged in adjusting the clear water volume of giving in churn, the lower hopper.

In order to prevent material adhesion bulkhead, the jam discharge gate in the aggregate bin, the cement bin, the utility model discloses still be equipped with the air compressor machine, be equipped with the clear stopper machine on the cone bulkhead of aggregate bin, cement bin respectively, the air compressor machine is connected with the air inlet of clear stopper machine through preventing stifled trachea. The air compressor, the anti-blocking air pipe and the blockage removing machine jointly form an anti-blocking system of the material collecting bin and the cement bin so as to avoid the phenomenon that materials are stuck to walls and shed materials are generated.

In order to facilitate control and accurate metering, a manual valve, a flowmeter, a concentration meter and an electromagnetic valve are respectively arranged on a slurry conveying pipe between the mixing drum and the discharging hopper; a metering belt is also arranged between the discharge hole of the aggregate bin and the rubber belt conveyor.

Additionally, the utility model discloses still be equipped with the bulk gel material car, the bulk gel material car passes through the material conveying pipe and is connected with the feed inlet in cement storehouse.

In the in-service use, adopt the car will the utility model discloses relevant equipment, part, the instrument of filling system are transported to the scene and are assembled, and drier such as tailings, rubble mix with water according to different proportions with cementitious material (cement, gluey solid powder etc.), stir into ground paste or concrete that can carry, fill ground paste or the concrete that special position in stope needs (keep apart fore-set, concrete barricade etc.) to underground goaf.

In addition, the utility model is also provided with an automatic control system, the automatic control system is provided with a wide touch screen, a connecting terminal, a control cabinet, an operation table and a printer, the automatic control system is respectively connected with control interfaces of a metering belt, a rubber belt conveyor, a subtraction scale, a screw feeder, a regulating valve and an electromagnetic valve and is used for controlling the running speeds of the metering belt and the rubber belt conveyor for conveying the dry materials so as to achieve the accurate conveying of the dry materials; the rotating speed of the subtraction weigher and the screw feeder for controlling the gelled material is controlled so as to achieve the accurate conveying of the gelled material; the water supply system is used for controlling a regulating valve on a water supply pipeline to achieve the water supply quantity with required concentration; and controlling an electromagnetic valve on the slurry conveying pipe according to the liquid level height of the mixing drum and the number displayed by the flowmeter so as to achieve the purpose of conveying slurry or concrete to a filling pipe in a drilling hole or a filling well.

The utility model discloses after the combination formula filling system that underground mining filled usefulness adopted above-mentioned technical scheme, had following beneficial effect:

(1) the filling system can realize continuous slurry or concrete conveying, solve the problem of unbalanced underground mining and filling, eliminate a goaf in a short time, reduce the problems of instability and collapse of the goaf and sulfur smoke and fire in the goaf formed by a high-sulfur deposit, and realize safe production.

(2) Compared with a common filling station, the filling system has the advantages of no large-scale equipment and facilities, detachable transportation of the whole set of equipment, less equipment installation foundation, less investment and quick station building.

(3) The complete equipment of the filling system is flexible to disassemble and convenient to transport. The goaf distribution of the mine is wide, and after the goaf filling in the service range is finished, the filling equipment can be disassembled and transported to the filling site in the service range to be filled for reassembly.

(4) For the mine to adopt the filling method to manage the goaf, the filling system can be adopted for filling material sources, particularly, a large number of goafs exist underground, the goaf cannot be compensated by only the tail mortar of a dressing plant, and the filling system shows the superiority.

(5) The filling system has the advantages of simple filling process, strong operation performance, reliable use and low failure rate.

(6) The tailings can be filled in a tailing-out mode in the tailing pond, so that the storage capacity of the tailing pond is reduced, and the operation cost of the tailing pond is reduced.

Drawings

Fig. 1 is a structural connection diagram of the combined filling system for underground mining and filling of the present invention.

The reference signs are: 1-drying materials; 2-a loader; 3-a material collecting bin; 4-vibrating screen; 5-a metering belt; 6-a belt conveyor; 7-a cement bin; 8-bulk cementitious material vehicle; 9-subtraction scale; 10-a screw feeder; 11-a clean water tank; 12-a water pump; 13-a regulating valve; 14-a mixing drum; 15-manual valve; 16-a solenoid valve; 17-a discharge hopper; 18-a flow meter; 19-concentration meter; 20-drilling or filling wells; 21-gallery filling pipe; 22-an air compressor; 23-anti-blocking trachea; 24-plug removing machine.

Detailed Description

For further description of the present invention, the combined filling system for underground mining and filling according to the present invention will be described in more detail with reference to the accompanying drawings.

It is seen from the structural connection diagram of the combined filling system for underground mining and filling of the utility model shown in fig. 1 that the combined filling system for underground mining and filling of the utility model comprises a cement bin 7, a collecting bin 3, a mixing drum 14, a discharging hopper 17, a clean water tank 11, a water pump 12, an air compressor 22 and a bulk gel material truck 8, wherein the side of the collecting bin 3 is provided with a loader 2 for loading dry materials 1, the lower part of the collecting bin 3 is provided with a rubber belt conveyor 6, a metering belt 5 is arranged between the discharge port of the collecting bin 3 and the rubber belt conveyor 6, and the discharge port of the rubber belt conveyor 6 is positioned at the upper part of the mixing drum 14; a subtraction scale 9 is arranged at the bottom of the cement bin 7, a screw feeder 10 is arranged at the lower part of the subtraction scale 9, and the screw feeder 10 is connected with a feeding hole of a mixing drum 14 through a conveying pipeline; a discharge port at the bottom of the mixing drum 14 is connected with a feed port of a blanking hopper 17 through a slurry conveying pipe, and a discharge port of the blanking hopper 17 is connected with a gallery filling pipeline 21 of a goaf through a drilling hole or a filling well 20; a water inlet pipe of the water pump 12 is connected with the clean water tank 11, a water supply pipeline of the water pump 12 is respectively connected with a water inlet of the mixing drum 14 and a water inlet of the discharging hopper 17, a regulating valve 13 is arranged on the water supply pipeline of the water pump 12, and clean water is supplied to the mixing drum 14 and the discharging hopper 17 through the regulating valve 13; the cone bin walls of the aggregate bin 3 and the cement bin 7 are respectively provided with a clearing machine 24, an air compressor 22 is connected with an air inlet of the clearing machine 24 through an anti-blocking air pipe 23, compressed air generated by the air compressor 22 reaches the cement bin 7 and the clearing machine 24 of the aggregate bin 3 through the anti-blocking air pipe 23, and the clearing machine 24 clears shed materials and wall-sticking materials under the action of high-pressure air; a manual valve 15, a flowmeter 18, a concentration meter 19 and an electromagnetic valve 16 are respectively arranged on the slurry conveying pipe between the mixing drum 14 and the blanking hopper 17; the bulk cementing material vehicle 8 is connected with a feeding hole of the cement bin 7 through a material conveying pipe, the cementing material vehicle 8 pumps the cementing material into the cement bin 7, the cementing material in the cement bin 7 is supplied to the screw feeder 10 through the subtraction weigher 9, and the cementing material is finally conveyed to the stirring drum 14. Shoveling different dry materials 1 by a loader 2, filtering out impurities by a vibrating screen 4, allowing the materials to fall into two collecting bins 3 respectively, feeding by a metering belt 5 and a rubber belt conveyor 6, and finally conveying the dry materials to a mixing drum 14; the dry materials, the gelled materials and the clear water conveyed into the mixing drum 14 are uniformly mixed under the high-speed rotation action of an impeller of the mixing drum 14, slurry or concrete sequentially passes through a manual valve 15, a flowmeter 18, a concentration meter 19 and an electromagnetic valve 16 to reach a blanking hopper 17, and then is lowered to a gallery filling pipeline 21 through a drilling hole or a filling well 20, and finally enters a goaf or a stope.

In the production process, the automatic control system plays a key role in accurately controlling the material proportion, the slurry concentration, the flow and the like, the control system controls the weight of different materials on the metering belt 5, controls the weight of the gelled material on the subtraction scale 9 and controls the water quantity on the regulating valve 13 on the clean water pipeline.

Claims

1. The utility model provides a combination formula filling system that underground mining filled usefulness, contains cement bin (7), its characterized in that: the dry material mixing device is characterized by also comprising a material collecting bin (3), a mixing drum (14) and a discharging hopper (17), wherein a loader (2) for loading dry materials (1) is arranged on the side edge of the material collecting bin (3), a rubber belt conveyor (6) is arranged at the lower part of the material collecting bin (3), and a discharging port of the rubber belt conveyor (6) is positioned at the upper part of the mixing drum (14); a subtraction scale (9) is arranged at the bottom of the cement bin (7), a screw feeder (10) is arranged at the lower part of the subtraction scale (9), and the screw feeder (10) is connected with a feeding hole of the mixing drum (14) through a conveying pipeline; the bottom discharge port of the mixing drum (14) is connected with the feed port of the discharging hopper (17) through a slurry conveying pipe, and the discharge port of the discharging hopper (17) is connected with a gallery filling pipeline (21) through a drilling hole or a filling well (20).

2. The combined filling system for underground mining filling of claim 1, wherein: the water-saving mixer is also provided with a clean water tank (11) and a water pump (12), wherein a water inlet pipe of the water pump (12) is connected with the clean water tank (11), a water supply pipeline of the water pump (12) is respectively connected with a water inlet of the mixing drum (14) and a water inlet of the discharging hopper (17), and a regulating valve (13) is arranged on the water supply pipeline of the water pump (12).

3. The combined filling system for underground mining filling according to claim 2, wherein: it is also provided with an air compressor (22); the cone bin walls of the aggregate bin (3) and the cement bin (7) are respectively provided with a plug cleaning machine (24), and the air compressor (22) is connected with an air inlet of the plug cleaning machine (24) through an anti-blocking air pipe (23).

4. A combined filling system for underground mining filling according to claim 3, wherein: a manual valve (15), a flowmeter (18), a concentration meter (19) and an electromagnetic valve (16) are respectively arranged on a slurry conveying pipe between the mixing drum (14) and the discharging hopper (17).

5. The combined filling system for underground mining filling according to claim 4, wherein: a metering belt (5) is arranged between the discharge hole of the aggregate bin (3) and the rubber belt conveyor (6).

6. The combined filling system for underground mining filling according to claim 5, wherein: the cement bin is also provided with a bulk cementing material vehicle (8), and the bulk cementing material vehicle (8) is connected with a feeding hole of the cement bin (7) through a material conveying pipe.

7. The combined filling system for underground mining filling according to claim 6, wherein: the automatic control system is provided with a wide touch screen, a wiring terminal, a control cabinet, an operation table and a printer, and is respectively connected with control interfaces of the metering belt (5), the rubber belt conveyor (6), the subtraction scale (9), the screw feeder (10), the regulating valve (13) and the electromagnetic valve (16).