Cleaning device for coal mining

Abstract

The invention discloses a cleaning device for coal mining, and relates to the technical field of coal mining devices. The device comprises a cleaning water tank, wherein a feeding conveying mechanism and a discharging conveying mechanism are arranged in the cleaning water tank; the bottom end of the feeding conveying mechanism is located over the bottom end of the discharging conveying mechanism. A baffle A is arranged over the bottom of the feeding conveying mechanism, a baffle B is arranged between the discharging conveying mechanism and the baffle A, and the bottom of the baffle B and the bottom of the baffle A extend to the position below the water surface. The discharging conveying mechanism and the discharging conveying mechanism are the same in structure and are both Z-shaped belt conveyors. When in use, the feeding conveying mechanism and the discharging conveying mechanism are used for conveying mined coal, the conveyed coal is cleaned in the conveying process, then impurities and bad components in the coal are removed, and meanwhile when the two conveying devices are used in cooperation, stacking of raw stones of a coal mine is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mining equipment, and in particular relates to a cleaning device used for coal mining. Background Art

[0002] Coal cleaning refers to the process of physically, chemically or in combination treating raw coal to remove impurities and undesirable components, aiming to improve the quality and utilization rate of coal. Through the cleaning process, these impurities can be effectively removed, the purity and combustion efficiency of coal can be improved, the sulfur content can be reduced, and the calorific value can be increased; therefore, this kind of coal cleaning device is needed in coal mining and processing.

[0003] In the current coal mining, after the raw coal ore is collected, the coal is cleaned by dumping it into the conveying device, so that the impurities on the surface of the raw coal are separated from the surface of the raw ore under the flushing of water. When the existing coal conveyor belt spraying device sprays and cleans the coal, the coal will be retained during the dumping process, resulting in the problem of raw coal stacking, resulting in a reduction in the cleaning effect of the raw coal, affecting the quality of the coal. Summary of the invention

[0004] The purpose of the present invention is to provide a cleaning device for coal mining, which solves the problems raised by the existing background technology by using a loading conveying mechanism and a unloading conveying mechanism to convey the mined coal and cleaning the conveyed coal during the conveying process.

[0005] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention is a cleaning device for coal mining, comprising a cleaning water tank, wherein a loading conveying mechanism and a discharging conveying mechanism are arranged in the cleaning water tank; the bottom end of the loading conveying mechanism is located directly above the bottom end of the discharging conveying mechanism; a baffle A is arranged directly above the bottom of the loading conveying mechanism, and a baffle B is arranged between the discharging conveying mechanism and the baffle A, and the bottoms of the baffle B and the baffle A both extend below the water surface; the discharging conveying mechanism and the discharging conveying mechanism have the same structure, and both are Z-shaped belt conveyors.

[0007] Furthermore, the unloading conveying mechanism includes a Z-shaped support frame, on which a conveying mechanism including a conveying belt is installed, and a plurality of baffle plates perpendicular to the length direction of the conveying belt are arranged at equal intervals on the conveying belt; a accommodating cavity for placing coal ore is formed between two adjacent baffle plates; and openings are evenly distributed on the conveying belt.

[0008] Furthermore, side baffles are respectively installed on the support frames located on both sides of the conveying mechanism, and the bottom side surfaces of the support frames are connected to the support legs.

[0009] Furthermore, a baffle C is provided between the loading and conveying mechanism and the baffle A, and the bottom of the baffle C extends below the water surface.

[0010] Furthermore, a scum cleaning mechanism is provided between baffle C and baffle A, and between baffle A and baffle B; the scum cleaning mechanism includes a scum cleaning trough, which is welded by multiple grid plates, and filter cloths are fixed to the inner and outer walls of the scum cleaning trough; a notch is provided on one side of the opening end of the scum cleaning trough, and the other side is connected to at least two rectangular frames; guide rails are respectively provided on the two opposite inner walls of the cleaning water tank, and an electric slider is provided on the guide rail, a support beam is connected between the two electric sliders, the support beam passes through the rectangular frame, a telescopic cylinder is provided on the upper surface of the support beam, and the output end of the telescopic cylinder is connected to the top side surface of the rectangular frame.

[0011] Furthermore, the baffle B and baffle C have the same structure and both include a rectangular plate body, the top of the rectangular plate body is connected to two ends of cross beams protruding from the two ends of the rectangular plate body, the ends of the cross beams are connected to vertical rectangular columns, and rectangular sleeves cooperating with the rectangular columns are respectively provided on both sides of the cleaning sink, and a rectangular opening is opened on one side of the rectangular sleeve; a support member is provided in the rectangular sleeve, and the support member includes a movable column that can move up and down along the inner wall of the rectangular sleeve, one end of the movable column is threadedly connected to a stud, and the end of the stud is sleeved with a rectangular sleeve that can move up and down along the inner wall of the rectangular sleeve; one end of the top of the movable column is connected to an operating rod protruding from the rectangular opening.

[0012] Furthermore, a flushing mechanism is provided at the non-water end of the feeding conveying mechanism, and the flushing mechanism includes at least one spray pipe arranged above the feeding conveying mechanism, and a plurality of nozzles are arranged on one side of the spray pipe along its length direction; and the length direction of the spray pipe is perpendicular to the conveying direction of the feeding conveying mechanism.

[0013] Furthermore, mutually connected water filter boxes are respectively arranged at both ends of the cleaning water tank, and a water pump connected to the spray pipe through a water supply pipe is arranged in the water filter box.

[0014] Furthermore, a liquid level sensor is provided in the cleaning water tank, a water supply pipe is connected to the top of the water filter box, and a valve is provided on the water supply pipe.

[0015] Furthermore, a bubble generating device is provided between the discharge end of the loading conveying mechanism and the feed end of the unloading conveying mechanism.

[0016] The present invention has the following beneficial effects:

[0017] The present invention uses a loading conveying mechanism and a discharging conveying mechanism to convey the mined coal, cleans the conveyed coal during the conveying process, and removes impurities and undesirable components therein, and when the two conveying devices are used in coordination, stacking of coal mine raw stones is avoided.

[0018] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the structure of the cleaning device of the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the unloading and conveying mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the scum cleaning mechanism of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the baffle B of the present invention;

[0024] Figure 5 for Figure 4 main view. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0027] See also Figure 1As shown, the present invention is a cleaning device for coal mining, which includes a cleaning trough 1 arranged on the ground, in which a loading conveying mechanism 2 and a discharging conveying mechanism 3 are arranged, the bottom ends of the loading conveying mechanism 2 and the discharging conveying mechanism 3 are located below the water surface, and the top ends are located above the water surface and protrude from the end of the cleaning trough 1; and the bottom end of the loading conveying mechanism 2 is located directly above the bottom end of the discharging conveying mechanism 3; and then when in use, the coal to be cleaned is placed from the top of the loading conveying mechanism 2 onto the loading conveying mechanism 2, and after being conveyed by the loading conveying mechanism 2, it falls to the bottom end of the discharging conveying mechanism 3, and is conveyed out from the top of the discharging conveying mechanism 3, and then the cleaning of the coal is completed in the whole process.

[0028] When cleaning the coal, some impurities generated will float above the water surface. When the unloading conveying mechanism 3 protrudes from above the water surface, it will carry the impurities floating on the water surface. Based on this, the present invention arranges a baffle A4 in the cleaning water tank 1 to shield the impurities floating on the water surface, so as to prevent the impurities from moving from one end of the cleaning water tank 1 to the other end on the water surface, and a baffle B5 is arranged between the unloading conveying mechanism 3 and the baffle A4, and the bottoms of the baffle B5 and the baffle A4 extend below the water surface; and the unloading conveying mechanism 3 and the unloading conveying mechanism 3 have the same structure, both of which are Z-shaped belt conveyors.

[0029] It is known that if Figure 2 The unloading conveying mechanism 3 provided by the present invention includes a Z-shaped support frame 30, on which a conveying mechanism including a conveying belt 31 is installed, and a plurality of baffle plates 34 perpendicular to the length direction of the conveying belt 31 are arranged at equal intervals on the conveying belt 31; a receiving cavity for placing coal ore is formed between two adjacent baffle plates 34; and openings are evenly distributed on the conveying belt 31, so that when controlling cleaning, the coal can be transported and water can be filtered out from the openings.

[0030] Side baffles 32 are respectively installed on the support frames 30 located on both sides of the conveying mechanism, and the bottom side surfaces of the support frames 30 are connected to support legs 33 .

[0031] Based on the above, in order to clean the impurities floating above the water surface on both sides of the baffle A4, scum cleaning mechanisms 9 are respectively arranged above the water surface on both sides of the baffle A4; and in order to prevent the impurities from moving during the cleaning process and moving toward the side of the feeding and conveying mechanism 2 to affect the scum cleaning, a baffle C6 is arranged between the feeding and conveying mechanism 2 and the baffle A4, and the bottom of the baffle C6 extends below the water surface.

[0032] Specifically, based on the above requirements, such as Figure 3The scum cleaning mechanism 9 provided by the present invention comprises a scum cleaning groove 90, which is welded by a plurality of grid grids, and the inner wall and the outer wall of the scum cleaning groove 90 are fixed with filter cloths; a notch 91 is arranged on one side of the opening end of the scum cleaning groove 90, and at least two rectangular frames 92 are connected on the other side; guide rails 93 are arranged on the two opposite inner side walls of the cleaning tank 1, and an electric slider 94 is arranged on the guide rail 93, and a support beam 95 is connected between the two electric sliders 94, and the support beam 95 passes through the rectangular frame 92, and a telescopic cylinder is arranged on the upper surface of the support beam 95 96, the output end of the telescopic cylinder 96 is connected to the top side surface of the rectangular frame 92; when the impurities on the liquid surface are cleaned during use, the telescopic cylinder 96 is controlled to retract until the top surface of the scum cleaning groove 90 is above the water surface, and the bottom surface of the notch 91 is controlled to be below the water surface. At this time, the electric slider 94 is controlled to move along the length direction of the guide rail 93, and finally the impurities on the liquid surface are cleaned by the scum cleaning groove 90. After cleaning, the telescopic cylinder 96 is controlled to extend, and the electric slider 94 is controlled to move along the length direction of the guide rail 93 to the initial position.

[0033] In a possible technical solution, in order to facilitate the adjustment of the depth of the baffle B5 and the baffle C6 inserted below the water surface according to the needs, such as Figure 4-5 The baffles B5 and C6 provided have the same structure, both of which include a rectangular plate body 50, the top of the rectangular plate body 50 is connected to two ends of a crossbeam 51 protruding from the two ends of the rectangular plate body 50, and the ends of the crossbeam 51 are connected to a vertical rectangular column 52, and rectangular sleeves 53 cooperating with the rectangular column 52 are respectively arranged on both sides of the cleaning sink 1, and a rectangular opening 54 is opened on one side of the rectangular sleeve 53; a support member is arranged in the rectangular sleeve 53, and the support member includes a movable column 55 that moves up and down along the inner wall of the rectangular sleeve 53, one end of the movable column 55 is threadedly connected to a stud 56, and the end of the stud 56 is sleeved with a rectangular sleeve 57 that moves up and down along the inner wall of the rectangular sleeve 53; one end of the top of the movable column 55 is connected to an operating rod 58 protruding from the rectangular opening 54.

[0034] It can be known that in order to facilitate improving the cleaning effect of the coal transported on the loading and conveying mechanism 2 during use, a flushing mechanism is arranged at the non-water end of the loading and conveying mechanism 2, and the flushing mechanism 7 includes at least one spray pipe arranged above the loading and conveying mechanism 2, and a plurality of nozzles are arranged on one side of the spray pipe along its length direction; and the length direction of the spray pipe is perpendicular to the conveying direction of the loading and conveying mechanism 2.

[0035] In order to reuse the cleaning water, reduce water costs and protect the environment, mutually connected water filter boxes 10 are respectively arranged at both ends of the cleaning water tank 1, and one of the water filter boxes 10 is provided with a water pump 101 connected to the spray pipe through a water supply pipe; and a liquid level sensor is also provided in the cleaning water tank 1, and the upper part of the water filter box 10 is connected to the water supply pipe, and a valve is provided on the water supply pipe.

[0036] In order to drive the coal that falls from the discharge end of the loading conveying mechanism 2 to the feed end of the unloading conveying mechanism 3 to be efficiently cleaned, a bubble generating device 8 is provided between the discharge end of the loading conveying mechanism 2 and the feed end of the unloading conveying mechanism 3. The bubble generating device 8 is utilized to discharge bubbles, so that when in use, the bubbles are utilized to remove impurities adhering to the surface of the coal, and the floating impurities are driven to float quickly to the water surface.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0038] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A cleaning device for coal mining, characterized in that: It comprises a cleaning water tank (1), wherein a loading conveying mechanism (2) and a discharging conveying mechanism (3) are arranged in the cleaning water tank (1); The bottom end of the loading conveying mechanism (2) is located directly above the bottom end of the unloading conveying mechanism (3); A baffle A (4) is arranged just above the bottom of the loading conveying mechanism (2), and a baffle B (5) is arranged between the unloading conveying mechanism (3) and the baffle A (4), and the bottoms of the baffle B (5) and the baffle A (4) both extend below the water surface; The unloading conveying mechanism (3) and the unloading conveying mechanism (3) have the same structure and are both Z-shaped belt conveyors.

2. A cleaning device for coal mining according to claim 1, characterized in that: The unloading conveying mechanism (3) comprises a Z-shaped support frame (30), the support frame (30) being equipped with a conveying mechanism comprising a conveying belt (31), and a plurality of baffle plates (34) perpendicular to the length direction of the conveying belt (31) being arranged at equal intervals on the conveying belt (31); A receiving cavity for placing coal ore is formed between two adjacent baffle plates (34); The conveying belt (31) is evenly distributed with openings.

3. A cleaning device for coal mining according to claim 1, characterized in that: Side baffles (32) are respectively installed on the support frames (30) located on both sides of the conveying mechanism, and the bottom side surfaces of the support frames (30) are connected to support legs (33).

4. A cleaning device for coal mining according to claim 1, characterized in that: A baffle C (6) is provided between the loading and conveying mechanism (2) and the baffle A (4), and the bottom of the baffle C (6) extends below the water surface.

5. A cleaning device for coal mining according to claim 4, characterized in that: A scum cleaning mechanism (9) is provided between the baffle C (6) and the baffle A (4), and between the baffle A (4) and the baffle B (5); The scum cleaning mechanism (9) comprises a scum cleaning groove (90), the scum cleaning groove (90) is welded from a plurality of grid plates, and filter cloths are fixed to the inner wall and the outer wall of the scum cleaning groove (90); a notch (91) is arranged on one side of the opening end of the scum cleaning groove (90), and at least two rectangular frames (92) are connected to the other side; Guide rails (93) are respectively arranged on two opposite inner side walls of the cleaning water tank (1), and an electric slider (94) is arranged on the guide rail (93). A support beam (95) is connected between the two electric sliders (94), and the support beam (95) passes through the rectangular frame (92). A telescopic cylinder (96) is arranged on the upper surface of the support beam (95), and the output end of the telescopic cylinder (96) is connected to the top side surface of the rectangular frame (92).

6. A cleaning device for coal mining according to claim 1, characterized in that: The baffle B (5) and the baffle C (6) have the same structure, and both include a rectangular plate body (50), the top of the rectangular plate body (50) is connected to two ends of a crossbeam (51) protruding from two ends of the rectangular plate body (50), the ends of the crossbeam (51) are connected to a vertical rectangular column (52), and rectangular sleeves (53) matching with the rectangular column (52) are respectively arranged on both sides of the cleaning water tank (1), and a rectangular opening (54) is opened on one side of the rectangular sleeve (53); A support member is provided in the rectangular sleeve (53), and the support member comprises a movable column (55) movable up and down along the inner wall of the rectangular sleeve (53); one end of the movable column (55) is threadedly connected with a stud (56); the end of the stud (56) is sleeved with a rectangular sleeve (57) movable up and down along the inner wall of the rectangular sleeve (53); the top end of the movable column (55) is connected with an operating rod (58) protruding from the rectangular opening (54).

7. A cleaning device for coal mining according to claim 1, characterized in that: A flushing mechanism is provided at the non-water-entering end of the feeding conveying mechanism (2), the flushing mechanism (7) comprising at least one spray pipe provided above the feeding conveying mechanism (2), a plurality of spray heads being provided along the length direction of the spray pipe on one side of the spray pipe; and the length direction of the spray pipe is perpendicular to the conveying direction of the feeding conveying mechanism (2).

8. A cleaning device for coal mining according to claim 7, characterized in that: The two ends of the cleaning water tank (1) are respectively provided with mutually communicating water filter boxes (10), and the water filter box (10) is provided with a water pump (101) connected to the spray pipe through a water supply pipe.

9. A cleaning device for coal mining according to claim 8, characterized in that: A liquid level sensor is also provided in the cleaning water tank (1), and a water supply pipe is connected to the top of the water filter box (10), and a valve is provided on the water supply pipe.

10. A cleaning device for coal mining according to claim 1, characterized in that: A bubble generating device (8) is provided between the discharge end of the loading conveying mechanism (2) and the feed end of the unloading conveying mechanism (3).

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