Secondary separation, automatic metering and conveying system for coal-water mixture

Abstract

The utility model discloses a coal-water mixture secondary separation, automatic metering and conveying system which comprises a separation box and a metering box, the metering box is fixed on the side face of the separation box, a feeding pipe and a gas drainage pipe which are communicated with an inner cavity of the separation box are installed on the top of the separation box, and a filtering separation assembly is installed in the separation box. And a feed opening is formed in the side surface of the separating box close to the filtering and separating assembly. According to the two-stage separation, automatic metering and conveying system for the coal-water mixture, coal and water in the coal-water mixture can be effectively separated by adopting a two-stage separation structure, the content of separated coal can be detected and metered, the size of a punching space can be conveniently judged according to the coal discharge amount, gas in a coal seam can be accumulated in the space, gas drainage is facilitated, and the coal-water mixture can be conveyed to the coal-water mixture. And the metered coal is conveyed to the conveying belt through the arranged conveying assembly to be transferred to the coal bunker, and meanwhile the metering device in the metering box continuously meters the coal content.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a coal-water mixture secondary separation, automatic metering and conveying system. Background Art

[0002] When extracting gas during coal mining, it is necessary to punch holes at the top of the coal seam borehole with high-pressure water flow, so that the end of the coal seam borehole is formed into a receiving space, increasing the volume of the borehole in the coal seam for gas extraction. When punching holes in the coal seam to create a receiving space, a large amount of coal-water mixture will gush out of the borehole. In order to test the size of the punching space, the coal content in the coal-water mixture needs to be measured, but because the coal contains the water used for punching, it is inconvenient to detect the coal amount. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a two-level separation, automatic metering and conveying system for coal-water mixture. The two-level separation structure can be used to effectively separate the coal and water in the coal-water mixture, and the content of the separated coal can be detected and metered, so that the size of the punching space can be judged by the coal discharge volume, so that the gas in the coal seam can accumulate in the space, which is convenient for the extraction of gas. The metered coal is conveyed to the transport belt and transferred to the coal bunker through the arranged conveying component. At the same time, the metering device in the metering box continuously meters the coal content, which can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a two-level separation, automatic metering and conveying system for coal-water mixture, comprising a separation box and a metering box, wherein the metering box is fixed on the side of the separation box, a feed pipe and a gas extraction pipe connected to the inner cavity of the separation box are installed on the top of the separation box, a filtering separation component is installed in the separation box, and a discharge port is provided on the side of the separation box near the filtering separation component, the inner cavity of the separation box is connected to the inner cavity of the metering box through the discharge port, a metering component is installed at the bottom of the inner cavity of the metering box, and a conveying component is arranged on the side of the metering box, and a drainage pipe connected to the bottom of the inner cavity of the separation box is installed on the side of the separation box.

[0005] As a preferred technical solution of the utility model, the filtering and separation assembly includes a first sieve plate and a second sieve plate fixedly installed in the separation box from top to bottom, and the first sieve plate and the second sieve plate are both inclined toward the metering box, and the side of the separation box near the first sieve plate and the position near the second sieve plate are provided with a discharge port.

[0006] As a preferred technical solution of the utility model, the metering component includes a metering hopper rotatably installed at the bottom of the inner cavity of the metering box, and a plurality of partition plates are fixed in the metering hopper, and the metering hopper is divided into a plurality of metering cavities by the plurality of partition plates. A key is fixed on the side of the metering hopper near the metering cavity, and a positioning component for positioning the key is provided on the side of the metering box.

[0007] As a preferred technical solution of the utility model, the positioning assembly includes a positioning plate rotatably mounted on the side of the meter box, and the positioning plate is located below the key and in contact with the side of the key, a positioning tension spring is provided on the side of the meter box, one end of the positioning tension spring is fixed to the side of the meter box above the positioning plate, and the other end of the positioning tension spring is fixed to the upper side of the positioning plate, a meter is installed on the side of the meter box, the metering detection end of the meter is in contact with the side of the positioning plate, and a display screen is installed on the side of the meter box.

[0008] As a preferred technical solution of the utility model, the positioning assembly also includes a ratchet wheel installed on the other side of the metering hopper, and a pawl for limiting the rotation of the ratchet wheel is rotatably provided on the side of the metering box.

[0009] As a preferred technical solution of the utility model, the conveying assembly includes a feeding barrel installed on the side of the metering box, and the feeding barrel is connected to the inner cavity of the metering box, an auger conveying mechanism is rotatably installed in the feeding barrel, a motor for driving the auger conveying mechanism is installed at the end of the feeding barrel, and a discharge pipe connected to the inner cavity of the feeding barrel is installed at a position away from the metering box.

[0010] As a preferred technical solution of the utility model, a material guide plate is installed on the side of the separation box near the discharge port, a pneumatic vibration pump is installed on the side of the separation box, and a walking mechanism is installed at the bottom of the separation box.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The two-level separation, automatic metering and conveying system for coal-water mixture exemplified in the utility model can effectively separate the coal and water in the coal-water mixture by adopting a two-level separation structure, and can detect and meter the content of the separated coal, so as to facilitate the judgment of the size of the punching space by the coal discharge volume, so that the gas in the coal seam can accumulate in the space, and the extraction of the gas is convenient. The metered coal is conveyed to the transport belt and transferred to the coal bunker through the arranged conveying component, and the metering device in the metering box continuously meters the coal content. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0015] Figure 3 for Figure 1 A schematic diagram of the structure from another perspective;

[0016] Figure 4 It is a schematic diagram of the enlarged structure of B in 3;

[0017] Figure 5 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 6 for Figure 5 Schematic diagram of the stereoscopic perspective structure.

[0019] In the figure: 1 separation box, 2 feed pipe, 3 extraction pipe, 4 first sieve plate, 5 second sieve plate, 6 pneumatic vibration pump, 7 metering box, 8 guide plate, 9 metering hopper, 91 key, 92 positioning plate, 93 positioning tension spring, 94 metering device, 95 ratchet, 96 pawl, 10 partition plate, 11 feeding barrel, 12 auger conveying mechanism, 13 motor, 14 discharge pipe, 15 walking mechanism, 16 display screen, 17 drain pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-6 The utility model provides a technical solution: a two-level separation, automatic metering and transportation system for coal-water mixture, including a separation box 1 and a metering box 7. The metering box 7 is fixed on the side of the separation box 1. The fixing method includes but is not limited to welding or screwing. A feed pipe 2 and a suction pipe 3 connected to its inner cavity are installed on the top of the separation box 1. The feed pipe 2 is used to collect the coal-water mixture during the punching process. The coal-water mixture enters the separation box 1 through the feed pipe 2, which is convenient for separating the coal-water mixture. The suction pipe 3 is convenient for pumping gas in the coal well into the accommodation space formed by punching, or in the punching process, the gas entering the separation box 1 with the coal-water mixture is pumped into the main pipeline of the gas suction pipe 3 through the gas suction pipe 3 on the top of the separation box 1.

[0022] A filtering and separating component is installed in the separation box 1, and the coal and water in the coal-water mixture are separated by the filtering and separating component. A feeding port is provided on the side of the separation box 1 near the filtering and separating component, and the inner cavity of the separation box 1 is connected with the inner cavity of the metering box 7 through the feeding port. The setting of the feeding port facilitates the separated coal to enter the metering box for metering. The filtering and separating component includes a first sieve plate 4 and a second sieve plate 5 fixedly installed in the separation box 1 from top to bottom, and the first sieve plate 4 and the second sieve plate 5 are both inclined toward the metering box 7. Feeding ports are provided on the side of the separation box 1 near the first sieve plate 4 and the second sieve plate 5. A plurality of first sieve holes are provided on the side of the first sieve plate 4, and preferably, the diameter of the first sieve holes is 1.5 mm; a plurality of second sieve holes are provided on the side of the second sieve plate 5, and preferably, the diameter of the second sieve holes is 0.7 mm.

[0023] A drainage pipe 17 connected to the bottom of the inner cavity of the separation box 1 is installed on the side of the separation box 1. The coal-water mixture entering the separation box 1 through the feed pipe 2 falls on the first sieve plate 4, and the water flow and some small particles of coal in the coal-water mixture flow downward through the first sieve plate 4, and the coal in the coal-water mixture rolls along the inclined first sieve plate 4 to the discharge port, realizing primary filtering and screening; the coal-water mixture separated by the first sieve plate 4 falls on the second sieve plate 5, and is subjected to secondary filtering and screening by the second sieve plate 5. The water separated from the coal-water mixture flows down to the bottom of the inner cavity of the separation box 1 and is discharged through the drainage pipe 17, while the coal falls into the metering box 7 through the discharge port.

[0024] A metering assembly is installed at the bottom of the inner cavity of the metering box 7, and a conveying assembly is arranged on the side of the metering box 7. The metering assembly includes a metering hopper 9 rotatably installed at the bottom of the inner cavity of the metering box 7. Preferably, the metering hopper 9 is a cylindrical structure, and the metering hopper 9 is rotatably installed at the bottom of the inner cavity of the metering box 7 through a rotating shaft, and a plurality of partition plates 10 are fixed in the metering hopper 9. The metering hopper 9 is divided into a plurality of metering cavities by the plurality of partition plates 10, and each metering cavity is opened to facilitate the loading and unloading of coal. Preferably, four partition plates 10 are arranged, and the four partition plates 10 divide the metering hopper 9 into four cavities of the same volume. A metering cavity is provided, and a key 91 is fixed on the side of the metering hopper 9 near the metering cavity. A positioning component for positioning the key 91 is provided on the side of the metering box 7. The separated coal falls into the metering cavity of the metering hopper 9 through the discharge port. As the coal accumulates in the metering cavity, the pressure exerted on the positioning component by the key 91 provided on the side of the metering box 7 increases. When the force on the positioning component reaches the set value, the positioning component no longer restricts the key 91, and the metering hopper 9 rotates to dump the coal in the metering cavity to the position of the conveying component, which conveys the coal. The conveying component conveys the metered coal to the conveying belt and then transports it to the coal bunker for storage.

[0025] The positioning assembly includes a positioning plate 92 rotatably mounted on the side of the metering box 7. The rotatable mounting method of the positioning plate 92 includes but is not limited to a rotatable connection via a rotating shaft or a rotatable connection via a bearing assembly, and the positioning plate 92 is located below the key 91 and in contact with the side of the key 91. A positioning tension spring 93 is provided on the side of the metering box 7. One end of the positioning tension spring 93 is fixed to the side of the metering box 7 above the positioning plate 92, and the other end of the positioning tension spring 93 is fixed to the upper side of the positioning plate 92. The positioning plate 92 is positioned and constrained by the positioning tension spring 93 installed on the side of the metering box 7, so that the positioning plate 92 restricts the rotation of the metering hopper 9 through the key 91. As the coal accumulates in the metering cavity, the key 91 provided on the side of the metering box 7 increases the force applied to the positioning tension spring 93. When the force applied to the positioning tension spring 93 is greater than its own elastic supporting force, the metering hopper 9 squeezes the positioning plate 92 through the key 91 to rotate, and the metering hopper 9 dumps the coal in the metering cavity to the conveying assembly position.

[0026] A meter 94 is installed on the side of the metering box 7. The metering detection end of the meter 94 is in contact with the side of the positioning plate 92. A display screen 16 is installed on the side of the metering box 7. Every time the positioning plate 92 rotates, the meter 94 performs a measurement. According to the number of measurements and the size of the metering cavity, it is convenient to calculate the amount of coal discharged during the hole opening process, so as to facilitate the judgment of the size of the accommodation space formed by the punching, and facilitate the gas extraction management. It should be noted that the meter 94 can also be a counter or a pressure detection sensor. The number of measurements of the meter 94 is fed back to the display screen 16, which is displayed externally by the display screen 16 for easy use.

[0027] The positioning assembly also includes a ratchet 95 installed on the other side of the metering hopper 9. The ratchet 95 is fixed to the middle of one side of the metering hopper 9 through a mounting shaft. A pawl 96 for limiting the rotation of the ratchet 95 is arranged on the side of the metering box 7 through the rotation of a rotating shaft. Preferably, the ratchet 95 and the pawl 96 are both installed on the outside of the metering box 7 to prevent the coal-water mixture from affecting its use. Preferably, a protective box for protecting the ratchet 95 and the pawl 96 is arranged on the outside of the metering box 7. The setting of the ratchet 95 and the pawl 96 ensures that the metering hopper 9 rotates in one direction, which is convenient for measuring the number of rotations of the metering hopper 9. During the application process, this scheme can realize the discharge, separation and measurement of the coal-water mixture, has high work efficiency, saves work flow, and the metering hopper 9 used has an overall cylindrical structure, and there is no path waste during use. The metering component in the metering box 7 continuously measures the coal content, which is convenient for use. At the same time, the metering component arranged in this system has high metering accuracy, simple structure and convenient use.

[0028] The conveying assembly includes a feeding barrel 11 installed on the side of the metering box 7, and the feeding barrel 11 is connected to the inner cavity of the metering box 7. An auger conveying mechanism 12 is rotatably installed in the feeding barrel 11, and a motor 13 that drives the auger conveying mechanism 12 is installed at the end of the feeding barrel 11. A discharge pipe 14 connected to the inner cavity of the feeding barrel 11 is installed at a position away from the metering box 7. After the metering hopper 9 pours out the coal in the metering cavity, the motor 13 drives the auger conveying mechanism 12 to rotate, and the auger conveying mechanism 12 installed in the feeding barrel 11 transports the coal and discharges it through the discharge pipe 14, which is convenient for the use of the metering assembly.

[0029] A guide plate 8 is installed on the side of the separation box 1 near the discharge port. The guide plate 8 facilitates the coal discharged from the discharge port to effectively fall into the metering cavity on the side of the metering hopper 9, so as to facilitate the metering of the coal discharge through the metering hopper 9, thereby facilitating the judgment of the size of the accommodating space formed by punching holes in the coal seam and facilitating the extraction of gas. A pneumatic vibration pump 6 is installed on the side of the separation box 1. The pneumatic vibration pump 6 is controlled to work to assist the filtering and separation component to separate the coal-water mixture, and at the same time facilitates the separated coal to fall into the metering box 7 through the discharge port. A walking mechanism 15 is installed at the bottom of the separation box 1. The walking mechanism 15 is preferably a crawler. The setting of the walking mechanism 15 facilitates the movement of the device in the mine for use.

[0030] The pneumatic vibration pump 6, meter 94, motor 13, travel mechanism 15 and display screen 16 used in the utility model are all commonly used electronic components in the prior art, and their working methods and circuit structures are all well-known technologies. The operation of the pneumatic vibration pump 6, meter 94, motor 13, travel mechanism 15 and display screen 16 is controlled by an external switch group or PLC controller, and the mode of controlling the operation of electronic components such as the pneumatic vibration pump 6, meter 94, motor 13, travel mechanism 15 and display screen 16 by a switch group or PLC controller is a commonly used technical solution for technicians, which will not be elaborated here.

[0031] The undisclosed parts in the present utility model are all prior art, and their specific structures, materials and working principles are not described in detail. Although the embodiments of the present utility model have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the attached claims and their equivalents.

Claims

1. A two-stage separation, automatic metering and conveying system for coal-water mixture, comprising a separation box (1) and a metering box (7), characterized in that: The metering box (7) is fixed to the side of the separation box (1); a feed pipe (2) and a draw pipe (3) in communication with the inner cavity of the separation box (1) are installed on the top of the separation box (1); a filter separation component is installed in the separation box (1); a feed port is provided on the side of the separation box (1) near the filter separation component; the inner cavity of the separation box (1) is in communication with the inner cavity of the metering box (7) through the feed port; a metering component is installed at the bottom of the inner cavity of the metering box (7); a conveying component is provided on the side of the metering box (7); and a drain pipe (17) in communication with the bottom of the inner cavity of the separation box (1) is installed on the side of the separation box (1).

2. The coal-water mixture two-stage separation, automatic metering and transportation system according to claim 1 is characterized by: The filtering and separating assembly comprises a first sieve plate (4) and a second sieve plate (5) which are fixedly mounted in sequence from top to bottom in the separation box (1), and the first sieve plate (4) and the second sieve plate (5) are both arranged to be inclined toward the metering box (7), and a discharge port is provided on the side of the separation box (1) at a position close to the first sieve plate (4) and at a position close to the second sieve plate (5).

3. The coal-water mixture two-stage separation, automatic metering and transportation system according to claim 1 is characterized by: The metering assembly comprises a metering hopper (9) rotatably mounted at the bottom of an inner cavity of a metering box (7), and a plurality of partition plates (10) are fixed in the metering hopper (9), the metering hopper (9) is divided into a plurality of metering cavities by the plurality of partition plates (10), a key (91) is fixed at a position close to the metering cavity on the side of the metering hopper (9), and a positioning assembly for positioning the key (91) is provided on the side of the metering box (7).

4. The coal-water mixture two-stage separation, automatic metering and transportation system according to claim 3 is characterized by: The positioning assembly comprises a positioning plate (92) rotatably mounted on the side of the metering box (7), and the positioning plate (92) is located below the key (91) and in contact with the side of the key (91); a positioning tension spring (93) is arranged on the side of the metering box (7); one end of the positioning tension spring (93) is fixed to the side of the metering box (7) at a position above the positioning plate (92); the other end of the positioning tension spring (93) is fixed to the upper side of the positioning plate (92); a meter (94) is mounted on the side of the metering box (7); a metering detection end of the meter (94) is in contact with the side of the positioning plate (92); and a display screen (16) is mounted on the side of the metering box (7).

5. The coal-water mixture two-stage separation, automatic metering and transportation system according to claim 3 is characterized by: The positioning assembly further comprises a ratchet wheel (95) mounted on the other side of the metering hopper (9), and a ratchet pawl (96) for limiting the rotation of the ratchet wheel (95) is rotatably provided on the side of the metering box (7).

6. The coal-water mixture two-stage separation, automatic metering and transportation system according to claim 1 is characterized by: The conveying assembly comprises a feeding barrel (11) mounted on the side of the metering box (7), and the feeding barrel (11) is connected to the inner cavity of the metering box (7), an auger conveying mechanism (12) is rotatably mounted in the feeding barrel (11), a motor (13) for driving the auger conveying mechanism (12) is mounted at the end of the feeding barrel (11), and a discharge pipe (14) connected to the inner cavity of the feeding barrel (11) is mounted at a position away from the metering box (7).

7. The coal-water mixture two-stage separation, automatic metering and transportation system according to claim 1 is characterized by: A material guide plate (8) is installed on the side of the separation box (1) near the material discharge port, a pneumatic vibration pump (6) is installed on the side of the separation box (1), and a walking mechanism (15) is installed at the bottom of the separation box (1).

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