CN211518037U - Coal gangue slurrying and grouting system - Google Patents

Abstract

The utility model relates to the separation layer grouting and grouting technology, in particular to a coal gangue grouting and grouting system. The coal gangue pulping and grouting system of the utility model comprises a feeding device, a sand making machine, a sand silo, a mortar preparation device and a stirring tank with a stirring component, and the feeding device is used for feeding the sand making machine to the The inlet of the sand making machine conveys coal gangue, a first material conveying mechanism is connected between the outlet of the sand making machine and the inlet of the sand silo, and between the outlet of the sand silo and the material inlet of the mortar preparation device A second material conveying mechanism is provided, and the mortar outlet of the mortar preparation device is communicated with the stirring tank through the mortar tank, and the stirring tank is equipped with a grouting pump corresponding to and communicating with it. Advantages: The layout is reasonable, and the raw materials are made of gangue, which not only solves the problem of raw materials for pulping, but also solves the problems of large storage area of gangue and difficult subsequent processing.

Description

A kind of coal gangue slurry and grouting system

technical field

The utility model relates to the separation layer grouting and grouting technology, in particular to a coal gangue grouting and grouting system.

Background technique

Separation grouting belongs to large-scale grouting, with large amount of grouting and long duration. It is one of the effective methods for controlling ground subsidence after coal seam mining and preventing rock burst during coal seam mining. It is a new type of grouting. The popularized new technology, the grouting requires a very large amount of grouting raw materials, and the raw materials are often fly ash from power plants.

The output of coal gangue in coal mines is roughly one-tenth of that of coal mining, and the output is huge and stable. Coal gangue is often deposited on the ground, occupying a lot of ground fertile land.

Based on this, there is an urgent need to develop the technology of coal gangue grouting and grouting, so as to achieve a win-win situation between the separation layer grouting and coal mine gangue treatment.

Utility model content

The technical problem to be solved by the utility model is to provide a coal gangue slurrying and grouting system, which effectively overcomes the defects of the prior art.

The technical solution of the utility model to solve the above technical problems is as follows: a coal gangue slurry preparation and grouting system includes a feeding device, a sand making machine, a sand silo, a mortar preparation device and a stirring tank with a stirring component. The device is used to transport coal gangue to the inlet of the above-mentioned sand making machine. A first material conveying mechanism is connected between the outlet of the above-mentioned sand making machine and the inlet of the above-mentioned sand silo, and the outlet of the above-mentioned sand silo is connected to the outlet of the above-mentioned mortar preparation device. A second material conveying mechanism is arranged between the material inlets, and the mortar outlet of the mortar preparation device communicates with the stirring tank through the mortar tank, and the stirring tank is equipped with a grouting pump corresponding to and communicating with it.

On the basis of the above technical solutions, the utility model can also be improved as follows.

Further, the above-mentioned feeding device includes a storage bin, a transfer device and a feeding and conveying mechanism, the above-mentioned feeding and conveying mechanism is used to transport coal gangue to the inlet of the above-mentioned sand making machine, the above-mentioned storage bin is used for storing coal gangue, and the above-mentioned transfer device It is used to transfer the materials in the above-mentioned storage bin to the above-mentioned feeding and conveying mechanism.

Further, the above-mentioned transfer device is a forklift.

Further, the above-mentioned first material conveying mechanism, the second material conveying mechanism and the feeding conveying mechanism are all belt conveyors, and the feeding end and the discharging end of the above-mentioned first material conveying mechanism respectively extend below the outlet of the above-mentioned sand making machine. And at the entrance of the above-mentioned sand silo, the feeding end and the discharging end of the above-mentioned second material conveying mechanism extend to the bottom of the outlet of the above-mentioned sand silo and the material inlet of the above-mentioned mortar preparation device respectively, and the outlet of the above-mentioned feeding and conveying mechanism. The material end extends to the inlet of the above-mentioned sand making machine.

Further, an iron remover is also included, and the iron remover is arranged at the above-mentioned feeding and conveying mechanism, and is used for removing the magnetic metal objects contained in the conveyed material on the above-mentioned feeding and conveying mechanism.

Further, the above-mentioned iron remover is a suspended permanent magnet iron remover erected above the above-mentioned feeding and conveying mechanism.

Further, a meter is connected to the outlet of the sand silo.

Further, the inlet of the above-mentioned sand making machine is connected with a vibrating feeder.

Further, the above-mentioned mortar preparation device is a wet ball mill, and the water inlet of the wet ball mill is connected to a water supply pump through a pipeline.

Further, the above-mentioned stirring tank is provided with a plurality of them.

The beneficial effect of the utility model is that the layout is reasonable, and the gangue is used to make pulp, which not only solves the problem of raw materials for pulping, but also solves the problems of large area for gangue storage and difficult subsequent treatment.

Description of drawings

Fig. 1 is the layout diagram of the coal gangue slurrying and grouting system of the utility model.

In the accompanying drawings, the list of components represented by each number is as follows:

2. Sand making machine, 3. Sand silo, 4. Mortar preparation device, 5. Mixing tank, 6. First material conveying mechanism, 7. Second material conveying mechanism, 8. Iron remover, 11. Storage bin, 12. Feeding conveying mechanism, 41, mortar tank, 42, water supply pump, 51, grouting pump.

Detailed ways

The principles and features of the present invention will be described below with reference to the accompanying drawings, and the examples are only used to explain the present invention, and are not intended to limit the scope of the present invention.

Example: As shown in Figure 1, the coal gangue slurrying and grouting system of this example includes a feeding device, a sand making machine 2, a sand silo 3, a mortar preparation device 4 and a stirring tank 5 with a stirring component , the above-mentioned feeding device is used to transport coal gangue to the inlet of the above-mentioned sand making machine 2, and a first material conveying mechanism 6 is provided between the outlet of the above-mentioned sand making machine 2 and the inlet of the above-mentioned sand silo 3, and the above-mentioned sand silo is connected. A second material conveying mechanism 7 is arranged between the outlet of 3 and the material inlet of the above-mentioned mortar preparation device 4, and the mortar outlet of the above-mentioned mortar preparation device 4 is communicated with the above-mentioned stirring tank 5 through the mortar tank 41, and the above-mentioned stirring tank 5 is configured with one of them. A corresponding and communicating grouting pump 51 .

The above-mentioned feeding device includes a storage bin 11, a transfer device and a feeding and conveying mechanism 12. The above-mentioned feeding and conveying mechanism 12 is used to transport coal gangue to the inlet of the above-mentioned sand making machine 2, and the above-mentioned storage bin 11 is used to store coal gangue, The above-mentioned transfer device is used for transferring the materials in the above-mentioned storage bin 11 to the above-mentioned feeding and conveying mechanism 12 .

A material yard is set up near the feeding device for storing gangue and other lumps. The yard should be spacious and convenient for entering and leaving the vehicle. The amount of gangue stored on the site should meet the grouting volume for at least 3 days; the function of the sand making machine is to remove the blocks sand, the particle size of the finished sand must meet the requirements of the mortar preparation device; the sand silo 3 is used for temporary storage of sand and subsequent sand transportation and supply; the whole system first prepares the gangue raw materials into Sand, and then prepared into mortar, and the mortar is used as the raw material for abscission grouting, which effectively utilizes gangue raw materials for grouting and grouting, which solves the problem that the gangue occupies a large amount of fertile land and finds a reasonable place for the gangue; The grouting has found a continuous and steady stream of new grouting raw materials; it has achieved a win-win situation between the separation layer grouting and the coal mine gangue treatment.

Among them, the mortar tank 41, the stirring tank 5, and the grouting pump 51 constitute a grouting system. The mortar tank 41 is used for the finished mortar to enter the mixing tank 5; the mixing tank 5 is used to temporarily store the mortar and prevent the mortar from precipitation; the grouting pump 51 is used to inject mortar into the hole (or working area), according to the size of the grouting amount , the final pressure and pump volume at the end of grouting, to select different types of grouting pumps or a combination of pump groups composed of grouting pumps and stabilizer pumps; The flow passage from the grouting pump to the grouting hole is composed of a grouting pipe and a high-pressure hose. The entire grouting system is a gangue treatment system of not less than 100t/h, and the grout mesh is no more than 120 mesh, and the specific gravity is not less than 120. 1.1-1.2 g/cm ³ .

Sand making machine 2 is 1616 type, the feed block size is not more than 180mm, the discharge particle size is less than 5mm (the content is not less than 85%), and the sand making volume is not less than 150t/h.

As a preferred embodiment, the above-mentioned transfer device is a forklift, which is a special vehicle for industrial conventional material transfer, and the transfer is reliable, and can also be other special vehicles or specific equipment.

As a preferred embodiment, the first material conveying mechanism 6 , the second material conveying mechanism 7 and the feeding conveying mechanism 12 are all belt conveyors, and the feeding end and the discharging end of the first material conveying mechanism 6 Respectively extend below the outlet of the above-mentioned sand making machine 2 and the entrance of the above-mentioned sand silo 3, and the feed end and the discharge end of the above-mentioned second material conveying mechanism 7 extend to the bottom of the outlet of the above-mentioned sand silo 3 and the above-mentioned mortar respectively. At the material inlet of the preparation device 4, the discharge end of the above-mentioned feeding conveying mechanism 12 extends to the above-mentioned inlet of the sand making machine 2, and the material and material are transported smoothly.

As a preferred embodiment, it also includes an iron remover 8. The iron remover 8 is arranged at the above-mentioned feeding and conveying mechanism 12, and is used to remove the magnetic metal objects contained in the conveyed material on the above-mentioned feeding and conveying mechanism 12. Specifically, The above-mentioned iron remover 8 is a suspended permanent magnet iron remover erected above the above-mentioned feeding and conveying mechanism 12. When the gangue passes under it, it uses its own strong magnetism to absorb the metal objects that will enter the sand making machine to prevent the metal from entering. Equipment damage in sand making machine 2.

Among them, the model of the suspended permanent magnet iron remover is RCY-10, and the suspension height is 300mm.

As a preferred embodiment, a meter is connected to the outlet of the above-mentioned sand silo 3, and the amount of material entering the mortar preparation device 4 is recorded by the meter, and the mortar configuration and production are reasonably carried out.

More preferably, two sand silos 3 are generally set up, and they are respectively connected to gauges, both of which are located above the conveying surface of the feeding end of the second material conveying mechanism 7, and the two sand silos 3 can be alternately used for temporary storage of finished products. Sand to ensure uninterrupted supply of finished sand, the size of sand silo 3 is 4.0m*4.0m*2.5m.

As a preferred embodiment, a vibrating feeder is connected to the inlet of the above-mentioned sand making machine 2, and its function is to make the blocks evenly fed into the sand making machine 2 to ensure the quality and stability of sand making. The model of the feeder is GZG80-6, the maximum block size of the gangue entering the sand making machine is not more than 200mm, and the large blocks exceeding 200mm are screened out by the screen on the upper part of the vibrating feeder.

湿式球磨机，电机为10KV的1000KW的高压电机，启动方式为三级降压启动；每小时磨粒度小于5mm(含量不少于85％)矸石不少于100吨，矸石浆液不小于120目，矸石浆液比重为1.1-1.20g/cm³，供水泵42为200m³/h的离心泵，通过变频电机调节上水量。As a preferred embodiment, the above-mentioned mortar preparation device 4 is a wet ball mill, and the water inlet of the wet ball mill (that is, the material port of the grinding head) is connected to an external water supply pump 42 through a pipeline (the pipeline can be extended to the material port. ), its function is to make the finished sand into mortar, water and finished sand enter from the grinding head of the ball mill, and the slurry flows out from the grinding tail (that is, the mortar outlet); the density of the mortar and the amount of mortar are adjusted by the amount of water and sand, among which ,

Wet ball mill, the motor is a 10KV 1000KW high-voltage motor, and the starting method is three-stage step-down starting; the grinding particle size per hour is less than 5mm (the content is not less than 85%) gangue is not less than 100 tons, the gangue slurry is not less than 120 mesh, and the gangue is not less than 120 mesh. The specific gravity of the slurry is 1.1-1.20 g/cm ³ , the water supply water pump 42 is a centrifugal pump of 200 m ³ /h, and the water supply volume is adjusted by a frequency conversion motor.

The whole system is also equipped with a dust removal system, which consists of a dust hood, a secondary cyclone dust collector, a water dust collector and a fog cannon. The material conveying mechanism 6 is used to process the dust of the materials output on it. The fog cannon is located at the upper part of the sand silo 3 and is used to spray and eliminate the dust generated when the first material conveying mechanism 6 feeds the sand silo 3 , the fog cannon machine is 30 type.

There is also a substation that supplies power to the entire system. The power supply system selects transformers according to the total power consumption. The wet ball mill is a 10KV 1000KW high-voltage motor, and the rest use two 1250A transformers.

注浆管。The above-mentioned mixing tank 5 is provided with multiple, specifically set as 5, the diameter is 3500mm, the depth is 2500mm, and the power is 15KW motor; Grouting; 2 sets of stabilized grouting, 3NBB-390 mud pump, powered by 55KW motor, used for stabilized grouting in the later stage of grouting; grouting manifold adopts

Grouting pipe.

The whole system also involves the control room of electrical components, which controls the sand making machine 2, the meter, the belt conveyor, the water supply pump 42, the grouting pump 51 and other electrical equipment or original parts through remote wired control, which greatly improves the production efficiency. .

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the present invention. within the scope of protection of the utility model.

Claims (10)

1. A coal gangue slurrying and slip casting system is characterized in that: including loading attachment, system sand machine (2), sand silo (3), mortar preparation facilities (4) and stirring pond (5) that have the stirring subassembly, loading attachment be used for to the import of system sand machine (2) is carried the gangue, the export of system sand machine (2) with be equipped with first material conveying mechanism (6) between the entry of sand silo (3) and connect, the export of sand silo (3) with be equipped with second material conveying mechanism (7) between the material entry of mortar preparation facilities (4), the mortar export of mortar preparation facilities (4) pass through mortar groove (41) with stirring pond (5) intercommunication, stirring pond (5) dispose with grouting pump (51) rather than one-to-one and intercommunication.

2. The coal gangue slurrying and grouting system of claim 1, characterized in that: the feeding device comprises a storage bin (11), a transfer device and a feeding conveying mechanism (12), wherein the feeding conveying mechanism (12) is used for conveying coal gangue to an inlet of the sand making machine (2), the storage bin (11) is used for storing the coal gangue, and the transfer device is used for transferring materials in the storage bin (11) to the feeding conveying mechanism (12).

3. The coal gangue slurrying and grouting system of claim 2, characterized in that: the transfer device is a forklift.

4. The coal gangue slurrying and grouting system of claim 2, characterized in that: first material conveying mechanism (6), second material conveying mechanism (7) and material loading transport mechanism (12) are belt conveyor, the feed end and the discharge end of first material conveying mechanism (6) extend respectively system sand machine (2) the export below and the entrance of sand silo (3), the feed end and the discharge end of second material conveying mechanism (7) extend respectively the export below of sand silo (3) and the material entrance of mortar preparation device (4), the discharge end of material loading transport mechanism (12) extends the import department of system sand machine (2).

5. The coal gangue slurrying and grouting system of claim 4, characterized in that: the iron remover is characterized by further comprising an iron remover (8), wherein the iron remover (8) is arranged at the feeding conveying mechanism (12) and used for removing magnetic metal objects contained in the materials conveyed on the feeding conveying mechanism (12).

6. The coal gangue slurrying and grouting system of claim 5, characterized in that: the iron remover (8) is a suspension type permanent magnet iron remover arranged above the feeding conveying mechanism (12).

7. The coal gangue slurrying and grouting system of claim 1, characterized in that: and the outlet of the sand silo (3) is connected with a meter.

8. The coal gangue slurrying and grouting system of claim 1, characterized in that: and the inlet of the sand making machine (2) is connected with a vibrating feeder.

9. The coal gangue slurrying and grouting system of any one of claims 1 to 8, characterized in that: the mortar preparation device (4) is a wet ball mill, and a water inlet of the wet ball mill is externally connected with a water supply pump (42) through a pipeline.

10. The coal gangue slurrying and grouting system of any one of claims 1 to 8, characterized in that: the stirring tanks (5) are provided with a plurality of stirring tanks.

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