Coal-water separation reversed loader capable of adjusting coal-water separation dehydration capacity

Abstract

The invention discloses a coal-water separation reversed loader capable of adjusting coal-water separation and dehydration capacity. At least two draining grooves are sequentially formed in a suspended section of the reversed loader; the draining tank comprises a tank body, a power part and a cross sieve assembly; a middle plate in the tank body is provided with a material leakage hole, and a side plate of the tank body is provided with a square hole; the cross sieve assembly is inserted into the groove body along the square hole; a wear-resistant sliding strip which can be clamped into the groove body middle plate and is flush with the groove body middle plate is arranged at the upper end of the cross screen assembly; an adjusting assembly is arranged at the side part of the groove body and below the square hole; a top sealing plate is arranged at the top of the groove body, a movable middle plate is arranged on the top sealing plate, and when coal-water separation is not needed, the height of the adjusting assembly is adjusted to be reduced, the movable middle plate is inserted into the square hole along the top of the cross screen assembly, and the material leakage hole is blocked. The dewatering capacity of the coal-water separation reversed loader can be adjusted in a graded mode, the coal-water separation reversed loader adapts to change of the water inflow of a coal face, and resource waste is avoided; and after the reversed loader is abraded, the screening assembly is adjusted to be matched with the abraded middle plate height, and the service life of the screening assembly is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of underground coal mining conveying equipment, and particularly relates to a coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity. Background Art

[0002] In an underground coal mining face with a large water inflow, a coal-water separation and transfer machine can separate most of the water inflow from the raw coal, avoiding the raw coal from slipping on the subsequent coal conveyor belt due to excessive water content. The coal-water separation function is realized by a coal-water separation device fixedly installed on the suspended section of the transfer machine. Generally, the water inflow of a coal mining face is related to the hydrogeological conditions of the ore deposit and is not constant. When the water inflow of the working face is small or there is no water inflow, the continuous operation of the coal-water separation device will cause unnecessary waste. Moreover, after the middle plate of the transfer machine wears and its thickness becomes thinner, the scraper chain will wear the separation device installed on the drainage trough, affecting the water permeability effect and the service life of the device. Summary of the Invention

[0003] In order to solve the technical problems existing in the above-mentioned technology, in view of this, it is necessary to provide a coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity.

[0004] A coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity is provided with at least two drainage troughs successively arranged on the suspended section of the transfer machine; The drainage trough includes a trough body, a power part, and a cross-screen assembly; a leakage hole is opened on the middle plate in the trough body, and a square hole is opened on the side plate of the trough body; the cross-screen assembly is inserted into the trough body along the square hole, and the upper end of the cross-screen assembly is lower than the upper end of the leakage hole; a wear-resistant slide bar is arranged at the upper end of the cross-screen assembly, and the wear-resistant slide bar is clamped into the middle plate of the trough body and is flush with the middle plate of the trough body; An adjusting assembly for adjusting the height of the cross-screen assembly is arranged at the lower part of the side of the trough body where the square hole is located; A sealing top plate is arranged at the top of the trough body, and a movable middle plate is further arranged on the sealing top plate. When coal-water separation is not required, the height of the adjusting assembly is adjusted to be lowered, so that the upper plane of the cross-screen assembly is lower than the bottom surface of the middle plate of the trough body, and the movable middle plate is inserted into the square hole along the top of the cross-screen assembly to block the leakage hole.

[0005] Preferably, the adjusting assembly includes a fixing plate and an adjusting rod; the fixing plate is fixed on the side of the trough body and is located below the square hole, the adjusting rod is longitudinally threadedly connected to the fixing plate, and the upper end of the adjusting rod contacts the bottom of the cross-screen assembly. Rotating the adjusting rod can adjust the height of the cross-screen assembly.

[0006] Preferably, a pin shaft is arranged on the side of the trough body, and an ear plate is arranged on the movable middle plate. A round hole adapted to the pin shaft is opened on the ear plate, so that after the movable middle plate is inserted into the square hole, the ear plate can be fixed to the pin shaft.

[0007] Preferably, the cross sieve assembly includes a base, sieve shafts, and pressing blocks; the pressing blocks are fixedly opposed on the base, the sieve shafts are evenly distributed at equal intervals along the layout direction of the wear-resistant sliding strips, and the two ends of the sieve shafts are rotatably connected to the pressing blocks. There are notches on the sieve shafts for placing the wear-resistant sliding strips, so that there is no movement interference between the sieve shafts and the wear-resistant sliding strips when the sieve shafts rotate.

[0008] Preferably, the sieve shaft includes a rotating shaft and disk sieve plates; the two ends of the rotating shaft are rotatably connected to the pressing blocks, the disk sieve plates are evenly distributed at equal intervals along the axial direction of the rotating shaft, and the disk sieve plates on adjacent rotating shafts are arranged staggeredly.

[0009] Preferably, the disk sieve plates are eccentrically installed with the rotating shaft, and the maximum limit movement trajectory of the disk sieve plates does not have movement interference with adjacent rotating shafts.

[0010] Preferably, the power unit includes a motor and a multi-axis output reducer; the multi-axis output reducer is installed on the base, and the input end of the multi-axis output reducer is connected to the motor, and the output ends of the multi-axis output reducer are correspondingly connected to each sieve shaft.

[0011] Preferably, the multi-axis output reducer includes a housing, an input gear shaft, and output gear shafts; the housing is installed on the base, the output gear shafts are sequentially rotatably installed in the housing, so that the axes of adjacent output gear shafts are parallel, adjacent output gear shafts are meshed with each other, the input gear shaft is rotatably installed in the middle position of the housing, and the input gear shaft is meshed with the output gear shafts on the left and right sides.

[0012] Preferably, the gear teeth numbers of adjacent output gear shafts are different, and the gear teeth numbers of the spaced output gear shafts are the same.

[0013] Compared with the prior art, the coal-water separation and transfer machine provided by the present invention that can adjust the coal-water separation and dehydration ability, the cross sieve assembly in the drain trough can adjust the height by using the adjustment assembly. When the height of the cross sieve assembly is reduced, the movable middle plate can be inserted to close one or more drain troughs to adjust the water permeability, or all the drain troughs can be closed so that the raw coal can be directly unloaded to the next-level transfer equipment without passing through the separation device, realizing the hierarchical adjustment of the dehydration ability of the coal-water separation and transfer machine and avoiding unnecessary waste. In addition, the installation height of the coal-water separation device in the drain trough can be adjusted according to the wear degree of the middle plate to avoid being worn by the scraper chain and affecting the service life. The present invention can hierarchically adjust the dehydration ability of the coal-water separation and transfer machine to adapt to the change of the water inflow in the coal mining face and avoid resource waste; it can also adjust the matching height of the screening assembly with the worn middle plate after the long-term operation and wear of the transfer machine to extend the service life of the screening assembly. Description of the Drawings

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram of the present invention.

[0016] Figure 2 It is a schematic assembly structure diagram of two groups of water discharge troughs of the present invention.

[0017] Figure 3 It is a schematic structural diagram of two groups of water discharge troughs of the present invention after being closed.

[0018] Figure 4 For the present invention Figure 3 It is a schematic structural diagram from another angle.

[0019] Figure 5 It is a schematic assembly diagram of one group of water discharge troughs of the present invention being opened and the other group being closed.

[0020] Figure 6 It is a schematic structural diagram of the water discharge trough of the present invention.

[0021] Figure 7 It is a schematic structural diagram of the cross sieve assembly of the present invention.

[0022] Figure 8 It is a schematic structural diagram of the sieve shaft of the present invention.

[0023] Figure 9 For the present invention Figure 7 It is a schematic side view structural diagram.

[0024] Figure 10 It is a schematic structural diagram of the trough body of the present invention.

[0025] Figure 11 It is a schematic diagram of the undulation of any state of the disc sieve plate of the present invention.

[0026] Figure 12 It is a schematic structural diagram of the multi-axis output reducer of the present invention.

[0027] In the figure: water discharge trough 100, trough body 01, material leakage hole 11, square hole 12, wear-resistant slide strip 13, slideway 14, power unit 02, motor 21, multi-axis output reducer 22, housing 221, input gear shaft 222, output gear shaft 223, cross sieve assembly 03, base 31, sieve shaft 32, rotating shaft 321, disc sieve plate 322, pressing block 33, adjusting assembly 04, fixing plate 41, adjusting rod 42, sealing top plate 05, movable middle plate 06, ear plate 61, pin shaft 07. Detailed implementation manners

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", etc. indicating the orientation or position 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 thus cannot be construed as a limitation to the present invention.

[0030] Please refer to Figures 1 to 6 , the present invention provides a coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity. At least two drain troughs 100 are sequentially arranged in the suspended section of the transfer machine; Among them, the drain trough 100 includes a trough body 01, a power part 02, and a cross-screen assembly 03; a material leakage hole 11 is opened on the middle plate in the trough body 01, and a square hole 12 is opened on the side plate of the trough body 01. The cross-screen assembly 03 is inserted into the trough body 01 along the square hole 12, and the upper end of the cross-screen assembly 03 is lower than the upper end of the material leakage hole 11; so that the cross-screen assembly 03 replaces part of the middle plate. A wear-resistant sliding strip 13 is arranged at the upper end of the cross-screen assembly 03. The wear-resistant sliding strip 13 can be clamped into the middle plate of the trough body 01, and the wear-resistant sliding strip 13 is flush with the middle plate of the trough body 01. There are two wear-resistant sliding strips 13, and the two wear-resistant sliding strips 13 are arranged side by side. The center distance between the two wear-resistant sliding strips 13 is the same as the center distance of the chain, which can provide support for the operation of the chain and prevent the chain from interfering with the cross-screen assembly 03 during operation due to its own gravity sagging. Secondly, after the wear-resistant sliding strip 13 is installed on the middle plate of the trough body 01, it can limit the left and right movement of the cross-screen assembly 03 in the trough body 01. Among them, in order to facilitate the installation of the cross-screen assembly 03 into the square hole 12, a slideway 14 is arranged in the square hole 12.

[0031] An adjusting assembly 04 for adjusting the height of the cross-screen assembly is arranged below the square hole on the side of the trough body 01; a sealing top plate 05 is arranged on the top of the trough body 01, and a movable middle plate 06 is also arranged on the sealing top plate 05. When coal-water separation is not required, the height of the adjusting assembly 04 is adjusted to be lowered, so that the height of the upper plane of the cross-screen assembly is lower than the bottom surface of the middle plate of the trough body 01, and the movable middle plate 06 is inserted into the square hole along the top of the cross-screen assembly to block the material leakage hole.

[0032] The cross - screen assembly in the water discharge trough 100 can adjust its height by means of the adjustment assembly 04. When the height of the cross - screen assembly is reduced, the movable middle plate 06 can be inserted to close one or more water discharge troughs 100, adjust the water permeability, or close all the water discharge troughs 100, enabling the raw coal to be directly unloaded to the next - level transfer equipment without passing through the separation device, realizing the graded adjustment of the dehydration capacity of the coal - water separation and transfer machine, avoiding unnecessary waste, and preventing unnecessary undersize coal screening under the cross - screen assembly when the water inflow in the coal - mining face is small or there is no water inflow. In addition, the installation height of the coal - water separation device in the water discharge trough 100 can be adjusted according to the wear degree of the middle plate, preventing it from being worn by the scraper chain and affecting its service life. During use, the dehydration capacity of the coal - water separation and transfer machine can be adjusted in grades to adapt to the change of the water inflow in the coal - mining face, avoiding resource waste; or after the long - term operation and wear of the transfer machine, the cross - screen assembly 03 can be adjusted to match the height of the worn middle plate, extending the service life of the cross - screen assembly 03.

[0033] In one embodiment, the adjustment assembly 04 includes a fixed plate 41 and an adjustment rod 42. The fixed plate 41 is fixed to the side of the trough body 01 and is located below the square hole. The adjustment rod 42 is longitudinally thread - connected to the fixed plate 41, and the upper end of the adjustment rod 42 contacts the bottom of the cross - screen assembly. Rotating the adjustment rod 42 can adjust the height of the cross - screen assembly.

[0034] When the upper plane of the middle plate of the trough body 01 is worn, rotate the adjustment rod 42 downward to keep the upper plane of the cross - screen assembly 03 flush with the middle plate of the trough body 01, which can protect the cross - screen assembly 03 from being worn by the scraper chain.

[0035] Among them, a pin shaft 07 is provided on the side of the trough body 01, and an ear plate 61 is provided on the movable middle plate 06. A round hole adapted to the pin shaft 07 is opened on the ear plate 61. After the movable middle plate 06 is inserted into the square hole and limited by a spring pin, the ear plate 61 can be fixed to the pin shaft 07, and all the water discharge troughs 100 can be closed. Of course, one of the water discharge troughs 100 can also be kept in a coal - water separation state, and the other water discharge trough 100 can be completely closed to adjust the dehydration capacity of the coal - water separation and transfer machine in grades.

[0036] Please refer to Figures 7 to 12 , in one embodiment, the cross - screen assembly 03 includes a base 31, a screen shaft 32, and a pressing block 33. The pressing blocks 33 are oppositely fixed on the base 31. The screen shafts 32 are evenly distributed at equal intervals along the layout direction of the wear - resistant slide bars 13, and the two ends of the screen shafts 32 are rotatably connected to the pressing blocks 33. Notches for the wear - resistant slide bars 13 to be placed are left on the screen shafts 32, so that there is no movement interference between the screen shafts 32 and the wear - resistant slide bars 13 when the screen shafts 32 rotate.

[0037] Among them, the screening shaft 32 includes a rotating shaft 321 and a disk screening plate 322; both ends of the rotating shaft 321 are rotatably connected to the pressing block 33. The disk screening plates 322 are evenly distributed at equal intervals along the axial direction of the rotating shaft 321, and the disk screening plates 322 on two adjacent rotating shafts 321 are arranged staggeredly, forming many narrow-width and relatively long-slit-width slits for water leakage. The rotation of the disk screening plates 322 can loosen the raw coal at the bottom layer, facilitating the downward seepage of the water gushing out from the pores of the raw coal through the sieve; the slit width formed between the disk screening plates 322 is relatively narrow, restricting the raw coal with a size larger than the slit width from entering the lower chain path, and can reduce the recovery amount of the screened raw coal. Secondly, the adjacent disk screening plates 322 can clean the adhered coal slime from each other during rotation, ensuring the smoothness of the water leakage holes.

[0038] Of course, the disk screening plate 322 and the rotating shaft 321 can also be eccentrically installed, and in this installation method, the maximum limit movement trajectory of the disk screening plate 322 does not interfere with the movement of the adjacent rotating shaft 321.

[0039] In one implementation, the power unit 02 includes a motor 21 and a multi-axis output reducer 22; the multi-axis output reducer 22 is installed on the base 31, and the input end of the multi-axis output reducer 22 is connected to the motor 21, and the output end of the multi-axis output reducer 22 is correspondingly connected to each screening shaft 32.

[0040] Among them, the multi-axis output reducer 22 includes a housing 221, an input gear shaft 222, and an output gear shaft 223; the housing 221 is installed on the base 31, and the output gear shafts 223 are sequentially rotatably installed in the housing 221, making the axes of two adjacent output gear shafts 223 parallel, and two adjacent output gear shafts 223 are meshed with each other. The input gear shaft 222 is rotatably installed at the middle position of the housing 221, and the input gear shaft 222 is meshed with the output gear shafts 223 on the left and right sides.

[0041] Of course, the gear teeth numbers corresponding to the adjacent output gear shafts 223 are different, and the gear teeth numbers corresponding to the spaced output gear shafts 223 are the same.

[0042] When the "water coal" passes through, the power of the motor 21 is transmitted to the output gear shaft 223 through the input gear shaft 222. Since the number of teeth of the gears corresponding to the adjacent output gear shafts 223 is different, and the number of teeth of the gears corresponding to the spaced output gear shafts 223 is the same, at this time, the rotational speeds transmitted to the adjacent rotating shafts 321 by the adjacent output gear shafts 223 are different, while the rotational speeds of the spaced rotating shafts 321 are the same. At the same time, the disk sieve 322 and the rotating shaft 321 are eccentrically installed, which will cause the disk sieve 322 to form irregular fluctuations up and down. The size of the water leakage holes formed between the adjacent disk sieves 322 also changes irregularly at all times. Using this dynamic irregular fluctuation can loosen the bottom material, facilitate water penetration, and has better dehydration ability with an irregular fluctuation sieve surface. The length of the drain trough 100 required is short, which can effectively shorten the suspended section length of the coal-water separation transfer machine, avoid the collapse of the waist caused by the too long suspended section of the transfer machine, and reduce the no-load power and manufacturing and use costs of the transfer machine. Secondly, because the disk sieve 322 is eccentrically installed, when the disk sieve 322 rotates, it can impact the disk sieve 322 on the adjacent rotating shaft 321, and use the disk sieve 322 to drive the coal-water mixture to form a rapid scouring between the adjacent disk sieves 322 on the same rotating shaft 321, so as to clean the coal slime attached to the disk sieve 322 more efficiently; and the impact formed by the disk sieve 322 can also hammer the bottom material, promote the loosening of the deposited material, prevent material accumulation between the disk sieve 322 and the adjacent rotating shaft 321, and facilitate water leakage.

[0043] The above-disclosed are only the preferred embodiments of the present invention. Of course, the scope of the rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand all or part of the processes of implementing the above embodiments, and the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. A coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity, characterized in that: At least two water discharge troughs are sequentially arranged on the suspended section of the conveyor; The water discharge trough includes a trough body, a power part, and a cross sieve assembly; a material leakage hole is formed on the middle plate in the trough body, and a square hole is formed on the side plate of the trough body; the cross sieve assembly is inserted into the trough body along the square hole, and the upper end of the cross sieve assembly is lower than the upper end of the material leakage hole; a wear-resistant slide bar is arranged at the upper end of the cross sieve assembly, and the wear-resistant slide bar is clamped into the middle plate of the trough body and is flush with the middle plate of the trough body; An adjusting assembly for adjusting the height of the cross sieve assembly is arranged below the square hole on the side of the trough body; A sealing top plate is arranged at the top of the trough body, and a movable middle plate is further arranged on the sealing top plate. When coal-water separation is not required, the height of the adjusting assembly is adjusted to be lowered so that the height of the upper plane of the cross sieve assembly is lower than the bottom surface of the middle plate of the trough body, and the movable middle plate is inserted into the square hole along the top of the cross sieve assembly to block the material leakage hole.

2. The coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity according to claim 1, characterized in that: The adjusting assembly includes a fixing plate and an adjusting rod; the fixing plate is fixed on the side of the trough body and is located below the square hole, and the adjusting rod is threadedly connected longitudinally to the fixing plate, and the upper end of the adjusting rod contacts the bottom of the cross sieve assembly. Rotating the adjusting rod can adjust the height of the cross sieve assembly.

3. The coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity according to claim 2, characterized in that: A pin shaft is arranged on the side of the trough body, and an ear plate is arranged on the movable middle plate. A round hole adapted to the pin shaft is formed on the ear plate so that after the movable middle plate is inserted into the square hole, the ear plate can be fixed to the pin shaft.

4. The coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity according to claim 1, wherein: The cross sieve assembly includes a base, a sieve shaft, and a pressing block; the pressing blocks are oppositely fixed on the base, the sieve shafts are evenly distributed at equal intervals along the arrangement direction of the wear-resistant slide bars, and the two ends of the sieve shafts are rotatably connected to the pressing blocks. A notch for placing the wear-resistant slide bar is left on the sieve shaft so that no movement interference occurs between the sieve shaft and the wear-resistant slide bar when the sieve shaft rotates.

5. The coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity according to claim 4, wherein: The sieve shaft includes a rotating shaft and a disc sieve; the two ends of the rotating shaft are rotatably connected to the pressing blocks, the disc sieves are evenly distributed at equal intervals along the axial direction of the rotating shaft, and the disc sieves on adjacent rotating shafts are arranged in a staggered manner.

6. The coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity according to claim 5, characterized in that: The disc sieve is eccentrically installed with the rotating shaft, and the maximum limit movement track of the disc sieve does not interfere with the adjacent rotating shafts.

7. The coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity according to any one of claims 4-6, characterized in that: The power part includes a motor and a multi-axis output reducer; the multi-axis output reducer is installed on the base, and the input end of the multi-axis output reducer is connected to the motor, and the output ends of the multi-axis output reducer are correspondingly connected to each sieve shaft.

8. The coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity according to claim 7, characterized in that: The multi-axis output reducer includes a housing, an input gear shaft, and an output gear shaft; the housing is installed on the base, the output gear shafts are sequentially rotatably installed in the housing so that the axes of adjacent output gear shafts are parallel, adjacent output gear shafts are meshed with each other, the input gear shaft is rotatably installed in the middle position of the housing, and the input gear shaft is meshed with the output gear shafts on the left and right sides.

9. The coal-water separation and transfer machine capable of adjusting the coal-water separation and dehydration capacity according to claim 8, characterized in that: The gear teeth numbers of adjacent output gear shafts are different, and the gear teeth numbers of the spaced output gear shafts are the same.

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