Coal-water separation reversed loader self-adaptive to working face water inflow and used for crossheading

Abstract

The invention discloses a crossheading coal-water separation reversed loader self-adaptive to the water inflow of a working face. At least two drainage grooves and a convex groove communicated with the drainage groove at the tail end are sequentially formed in a suspended section of the reversed loader; a shifting mechanism communicated with the convex groove lower chain way is arranged below the convex groove; the sorting and transferring mechanism comprises a box body, a power shaft, a spiral blade and a driving part; the inlet end of the box body is communicated with the outlet end of the material stirring mechanism, the water level sensor is installed at the lower end of the box body, the power shaft is rotationally installed in the box body, the spiral blade is fixedly installed in the axis direction of the power shaft, the driving part is installed outside the box body, and the input end of the driving part is connected with the input end of the power shaft. And the controller is electrically connected with the water level sensor and a frequency converter of the reversed loader driving motor through wires. The water level sensor is arranged in the box body, a water level signal is detected in real time, the scraper chain speed of the coal-water separation reversed loader is adjusted according to the water level signal, and when the water inflow of a working face is higher than a normal value, the coal-water separation effect can be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining and conveying equipment for underground coal mines, and particularly to a coal-water separation and transfer machine for gate roads that can adapt to the water inflow of the working face. Background Art

[0002] In an underground coal mining working 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 working face is related to the hydrogeological conditions of the ore deposit and is not constant. The dehydration capacity of the coal-water separation and transfer machine is designed according to the peak water inflow, which can meet the requirements of separating coal and water on the transfer machine. However, the increase in the number of supporting drainage troughs results in an overly long suspended section of the transfer machine, making it prone to sagging. Therefore, it is necessary to increase the structural strength of the suspended section of the transfer machine. Moreover, after the overall length of the transfer machine increases, the driving power of the transfer machine increases; correspondingly, the amount of fine coal separated increases, and the processing capacity of the coal slime recovery device also increases accordingly, causing unnecessary waste. If the dehydration capacity of the transfer machine is designed according to the normal water inflow, problems such as the increase in the overall length and power of the machine can be avoided. However, when the water inflow of the working face is higher than the normal value, the water content of the raw coal entering the belt is too high, and slipping will still occur. Summary of the Invention

[0003] In order to solve the technical problems existing in the above technology, in view of this, it is necessary to provide a coal-water separation and transfer machine for gate roads that can adapt to the water inflow of the working face.

[0004] A coal-water separation and transfer machine for gate roads that can adapt to the water inflow of the working face is provided with a drainage trough and a convex trough successively arranged on the suspended section of the transfer machine; the number of drainage troughs is at least two, and the convex trough is communicated with the drainage trough at the most end. The drainage trough includes a trough body, a power part, and a cross-screen assembly; a material 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 material leakage hole; a wear-resistant sliding strip is arranged at the upper end of the cross-screen assembly, and the wear-resistant sliding strip 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 below the square hole on the side part 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 upper plane height 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 material leakage hole. Below the convex groove, there is a feeding mechanism connected to the lower chain path of the convex groove. The outlet end of the feeding mechanism is connected to a sorting and transporting mechanism for separating and transporting solid raw coal from water. The outlet end of the sorting and transporting mechanism is connected to a transfer machine to recover the raw coal under the screen to the transfer machine. The sorting and transporting mechanism includes a box body, a power shaft, a spiral blade, and a driving part. The inlet end of the box body is connected to the outlet end of the feeding mechanism. A water level sensor is installed at the lower end of the box body. The power shaft is rotatably installed in the box body along the length direction of the box body. The spiral blade is fixedly installed on the outer wall of the power shaft along the axial direction of the power shaft, and there is a gap between the spiral blade and the outer wall of the power shaft. The driving part is installed outside the box body, and the input end of the driving part is connected to the input end of the power shaft. It also includes a controller, and the controller is electrically connected to the water level sensor and the frequency converter of the transfer machine drive motor through wires. When the water inflow in the coal mining face is less than the normal value, the value detected by the water level sensor is less than the set value, and the controller keeps the output frequency of the frequency converter unchanged, and the output speed of the transfer machine drive motor remains unchanged. When the water inflow in the coal mining face is greater than or equal to the normal value, within the error range of the value detected by the water level sensor and the set value, the controller issues an instruction to the frequency converter to reduce it. That is, after the output speed of the transfer machine drive motor and the scraper chain speed are reduced, if the water level signal remains unchanged within the error range of the set value, continue to segmentally reduce the output frequency of the frequency converter until the water level signal is lower than the set value and remains unchanged within a certain error range. When the water level signal drops rapidly, segmentally increase the output frequency of the frequency converter and segmentally restore the transfer machine chain speed.

[0005] Preferably, the drain trough includes a trough body, a power part, and a cross-screen assembly. A material 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 uppermost end of the cross-screen assembly is flush with the lowermost end of the material leakage hole. Above the material leakage hole, there is a wear-resistant sliding strip fixed on the middle plate of the trough body.

[0006] Preferably, the cross-screen assembly includes a base, a screen shaft, and a pressing block. The pressing blocks are oppositely fixed on the base. The screen shafts are evenly distributed at equal intervals along the layout direction of the wear-resistant sliding strips, and the two ends of the screen shaft are rotatably connected to the pressing blocks. There is a notch on the screen shaft for the wear-resistant sliding strip to be placed in, so that there is no movement interference between the screen shaft and the wear-resistant sliding strip when the screen shaft rotates. The screen shaft includes a rotating shaft and a disc screen. The two ends of the rotating shaft are rotatably connected to the pressing blocks. The disc screens are evenly distributed along the axial direction of the rotating shaft, and the disc screens on adjacent rotating shafts are staggered.

[0007] Preferably, the disc screen is eccentrically installed with the rotating shaft, and the maximum limit movement trajectory of the disc screen does not interfere with the adjacent rotating shafts.

[0008] Preferably, the power unit includes a motor and a multi-axis output speed reducer; the multi-axis output speed reducer is installed on the base, and the input end of the multi-axis output speed reducer is connected to the motor, and the output ends of the multi-axis output speed reducer are correspondingly connected to each screening shaft; the multi-axis output speed 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 two adjacent output gear shafts are parallel, and two adjacent output gear shafts are meshed with each other, the input gear shaft is rotatably installed at the middle position of the housing, and the input gear shaft is meshed with the output gear shafts on the left and right sides; the gear numbers of the corresponding gears of adjacent output gear shafts are different, and the gear numbers of the corresponding gears of the spaced output gear shafts are the same.

[0009] Preferably, the feeding mechanism includes a flange, star-shaped feeding claws, and a reduction motor; the flange is connected and installed at the bottom of the convex groove lower chain path, a discharge port is opened on one side of the bottom of the flange, and the discharge port is communicated with the inlet end of the box body, the star-shaped feeding claws are rotatably installed in the flange, and the bottom of the star-shaped feeding claws is attached to the bottom of the flange, the reduction motor is installed outside the flange and the output end is connected to the input end of the star-shaped feeding claws to drive the star-shaped feeding claws to rotate circumferentially.

[0010] Preferably, the star-shaped feeding claws include a disc body, feeding plates, and a substrate; the disc body is rotatably installed in the flange, and the input end of the disc body is connected to the input end of the reduction motor, the substrate is fixed on the outer wall of the disc body and is circumferentially distributed along the outer wall of the disc body, the substrate is attached to the bottom of the flange, and the feeding plates are fixed on the outer wall of the disc body, and the lower ends of the feeding plates are fixed on the substrate.

[0011] Preferably, the feeding plates are arc-shaped, and the side where the feeding plates bulge outwards contacts the material.

[0012] Preferably, an overflow hole and a mounting flange for externally connecting a water pump are provided on the side of the box body.

[0013] Preferably, a guide chute communicating with the transfer machine is provided at the outlet end of the box body.

[0014] Compared with the prior art, the coal-water separation and transfer machine for gate roadway with adaptive water inflow in the working face provided by the present invention aims at the problems that after the dehydration capacity of the existing coal-water separation and transfer machine is designed according to the peak water inflow in the working face, the length of the transfer machine increases and the power becomes larger. The dehydration capacity of the transfer machine is designed according to the normal water inflow in the working face to meet the coal-water separation requirements for most of the time. When the water inflow is higher than the normal value, by automatically reducing the speed of the scraper chain, firstly, the total amount of coal-water entering the transfer machine is reduced, and secondly, the residence time of coal-water on the drain trough is increased, increasing the probability of water seepage through the screen and ensuring the coal-water separation effect. When the water inflow is lower than the normal value, the chain speed is automatically restored to ensure the transportation capacity of the transfer machine. A water level sensor is arranged in the water tank of the spiral classifier to detect the water level signal at all times and can adjust the speed of the scraper chain of the coal-water separation and transfer machine according to the water level signal. The dehydration capacity of the coal-water separation and transfer machine is designed according to the normal water inflow in the working face, avoiding the problems of too long suspended section of the transfer machine and increased installed power caused by too many drain troughs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order 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, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic structural diagram of the present invention.

[0017] Figure 2 It is a schematic structural diagram of the drain trough of the present invention.

[0018] Figure 3 It is a schematic structural diagram of the cross screen assembly of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the screen shaft of the present invention.

[0020] Figure 5 For the present invention Figure 4 Schematic side view structure diagram.

[0021] Figure 6 It is a schematic structural diagram of the trough body of the present invention.

[0022] Figure 7 It is a schematic diagram of the undulating fluctuation of any state of the disc screen of the present invention.

[0023] Figure 8 It is a schematic structural diagram of the multi-axis output reducer of the present invention.

[0024] Figure 9 It is a schematic structural diagram of the connection between the material feeding mechanism and the convex groove of the present invention.

[0025] Figure 10 This is a schematic structural diagram of the material feeding mechanism of the present invention.

[0026] Figure 11 This is a schematic structural diagram of the connection between the material feeding mechanism and the sorting and transfer mechanism of the present invention.

[0027] Figure 12 This is a schematic assembly structural diagram of two groups of drain troughs of the present invention.

[0028] Figure 13 This is a schematic structural diagram of two groups of drain troughs after being closed of the present invention.

[0029] Figure 14 This is the present invention Figure 3 A schematic structural diagram from another angle.

[0030] Figure 15 This is a schematic assembly diagram of one group of drain troughs being opened and the other group of drain troughs being closed of the present invention.

[0031] Figure 16 This is a schematic diagram of the installation position of the water level sensor of the present invention.

[0032] Figure 17 This is a control flow chart of the present invention.

[0033] In the figure: drain trough 100, trough body 01, material leakage hole 11, square hole 12, wear-resistant slide bar 13, slide way 14, power part 02, electric motor 21, multi-axis output speed reducer 22, housing 221, input gear shaft 222, output gear shaft 223, cross sieve assembly 03, base 31, sieve shaft 32, rotating shaft 321, disk sieve plate 322, pressing block 33, convex groove 200, material feeding mechanism 04, flange plate 41, discharge port 411, star-shaped material feeding claw 42, disk body 421, material feeding plate 422, base plate 423, reduction motor 43, sorting and transfer mechanism 05, box body 51, overflow hole 511, mounting flange 512, power shaft 52, spiral blade 53, driving part 54, material guiding groove 55, adjusting assembly 06, fixing plate 61, adjusting rod 62, sealing top plate 07, movable middle plate 08, ear plate 81, pin shaft 09, water level sensor 10. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0035] 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 should not be construed as a limitation to the present invention.

[0036] Please refer to Figure 1 , the present invention provides a coal-water separation and transfer machine for gate road adapting to the water inflow of the working face, in which a water discharge trough 100 and a convex trough 200 are sequentially arranged on the suspended section of the transfer machine; the number of the water discharge troughs 100 is at least two, and the convex trough 200 communicates with the water discharge trough 100 at the most end. Please refer to Figure 2 , Figure 6 , wherein, the water discharge trough 100 includes a trough body 01, a power part 02, and a cross sieve assembly 03; a material leakage hole 11 is formed on the middle plate in the trough body 01, and a square hole 12 is formed on the side plate of the trough body 01. The cross sieve assembly 03 is inserted into the trough body 01 along the square hole 12, and the upper end of the cross sieve assembly 03 is lower than the upper end of the material leakage hole 11; so that the cross sieve assembly 03 replaces part of the middle plate. A wear-resistant slide bar 13 is arranged at the upper end of the cross sieve assembly 03, the wear-resistant slide bar 13 can be clamped into the middle plate of the trough body 01, and the wear-resistant slide bar 13 is flush with the middle plate of the trough body 01. There are two wear-resistant slide bars 13, and the two wear-resistant slide bars 13 are arranged side by side, and the center distance between the two wear-resistant slide bars 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 sagging due to its own gravity during operation and interfering with the cross sieve assembly 03. Secondly, after the wear-resistant slide bar 13 is installed on the middle plate of the trough body 01, it can limit the left and right movement of the cross sieve assembly 03 in the trough body 01. And for facilitating the installation of the cross sieve assembly 03 into the square hole 12, a slide way 14 is arranged in the square hole 12.

[0037] An adjusting assembly 06 for adjusting the height of the cross sieve assembly is arranged at the side part of the trough body 01 below the square hole; a sealing top plate 07 is arranged at the top of the trough body 01, and a movable middle plate 08 is further arranged on the sealing top plate 07. When coal-water separation is not required, the height of the adjusting assembly 06 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 01, and the movable middle plate 08 is inserted into the square hole along the top of the cross sieve assembly to block the material leakage hole.

[0038] Among them, a material feeding mechanism 04 communicating with the lower channel of the convex groove 200 is arranged below the convex groove 200. The outlet end of the material feeding mechanism 04 is communicated with a sorting and transporting mechanism 05 for separating and transporting solid raw coal and water. The outlet end of the sorting and transporting mechanism 05 is communicated with a transfer machine to recover the raw coal under the screen to the transfer machine. The coal-water mixture screened by the cross-screen assembly 03 is transported to the lower channel of the convex groove 200 through the lower channel of the tank body 01 and falls into the material feeding mechanism 04. Then, the material feeding mechanism 04 sends the coal-water mixture into the sorting and transporting mechanism 05. The solid raw coal is sorted and recovered by the sorting and transporting mechanism 05 and then transported to the transfer machine, thus realizing the automatic recovery of raw coal. The water separated from the mixture is discharged from the sorting and transporting mechanism 05. During the whole process, there is no need for manual cleaning, which reduces manual labor and works continuously, avoiding the shutdown of the working face equipment caused by manual cleaning of raw coal.

[0039] Please refer to Figure 11 、 Figure 16 Among them, the sorting and transporting mechanism 05 includes a box body 51, a power shaft 52, a spiral blade 53, and a driving part 54. The inlet end of the box body 51 is communicated with the outlet end of the material feeding mechanism 04. The power shaft 52 is rotatably installed in the box body 51 along the length direction of the box body 51. The spiral blade 53 is fixedly installed on the outer wall of the power shaft 52 along the axis direction of the power shaft 52. There is a gap between the spiral blade 53 and the outer wall of the power shaft 52. When the spiral blade 53 rotates, it will disperse the coal-water mixture towards the inner wall of the box body 51. The solid coal will be transported out through the spiral blade 53, and the remaining water will flow to the lowest point of the box body 51 through the gap between the spiral blade 53 and the outer wall of the power shaft 52, thus separating the solid coal and water. The driving part 54 is installed outside the box body 51, and the input end of the driving part 54 is connected to the input end of the power shaft 52.

[0040] Please refer to Figure 17 It also includes a controller, and the controller is electrically connected to the water level sensor and the frequency converter of the transfer machine driving motor through wires.

[0041] When the water inflow in the coal mining face is less than the normal value, the water level in the box body remains below the highest point of the overflow hole. The water level signal fed back by the water level sensor read by the frequency converter controller is less than the set value, the output frequency of the frequency converter remains unchanged, the output speed of the transfer machine driving motor remains unchanged, and the scraper chain speed remains unchanged.

[0042] When the water inflow in the coal mining face is greater than or equal to the normal value, the water level in the box body remains at the highest point of the overflow hole. The water level signal fed back by the water level sensor read by the frequency converter controller is within the set value error range. The frequency converter controller issues an instruction to the frequency converter to reduce the output frequency of the frequency converter by 5 Hz or other set values. When the frequency is reduced, that is, after the output speed of the transfer machine drive motor and the scraper chain speed are reduced, if the water level signal remains unchanged within the set value error range, continue to reduce the output frequency of the frequency converter in segments until the water level signal is lower than the set value and remains unchanged within a certain error range; when the water level signal drops rapidly, increase the output frequency of the frequency converter in segments and restore the scraper chain speed of the transfer machine in segments.

[0043] Please refer to Figures 12 to 15 , in which, the cross-screen assembly in the water discharge trough 100 can adjust the height by using the adjusting assembly 06. When the height of the cross-screen assembly is reduced, the movable middle plate 08 can be inserted to close one or more water discharge troughs 100, adjust the water permeability, or close all the water discharge troughs 100, 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 capacity of the coal-water separation transfer machine, avoiding unnecessary waste, and avoiding the unnecessary screening of fine coal under the cross-screen assembly 03 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, avoiding being worn by the scraper chain and affecting the service life. During use, the dehydration capacity of the coal-water separation transfer machine can be adjusted hierarchically to adapt to the change of the water inflow in the coal mining face and avoid resource waste; or after the transfer machine has been running and worn for a long time, 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.

[0044] In one embodiment, the adjusting assembly 06 includes a fixing plate 61 and an adjusting rod 62; the fixing plate 61 is fixed on the side of the tank body 01 and is located below the square hole, the adjusting rod 62 is longitudinally threadedly connected to the fixing plate 61, and the upper end of the adjusting rod 62 contacts the bottom of the cross-screen assembly 03. Rotating the adjusting rod 62 can adjust the height of the cross-screen assembly 03.

[0045] When the upper plane of the middle plate of the tank body 01 is worn, rotate the adjusting rod 62 downward so that the upper plane of the cross-screen assembly 03 remains flush with the middle plate of the tank body 01, which can protect the cross-screen assembly 03 from being worn by the scraper chain.

[0046] Among them, a pin shaft 09 is arranged on the side of the tank body 01, an ear plate 81 is arranged on the movable middle plate 08, and a round hole adapted to the pin shaft 09 is opened on the ear plate 81. After the movable middle plate 08 is inserted into the square hole and limited by a spring pin, the ear plate 81 can be fixed to the pin shaft 09, 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 hierarchically adjust the dehydration capacity of the coal-water separation transfer machine.

[0047] Please refer to Figures 3 to 8 In one embodiment, the cross sieve assembly 03 includes a base 31, a sieve shaft 32, and a pressing block 33. The pressing block 33 is fixedly arranged opposite to the base 31. The sieve shafts 32 are evenly distributed at equal intervals along the layout direction of the wear-resistant slide bars 13. Both ends of the sieve shaft 32 are rotatably connected to the pressing block 33. There are gaps on the sieve shaft 32 for the wear-resistant slide bars 13 to be placed, so that there is no movement interference between the sieve shaft 32 and the wear-resistant slide bars 13 when the sieve shaft 32 rotates.

[0048] Among them, the sieve shaft 32 includes a rotating shaft 321 and a disc sieve 322. Both ends of the rotating shaft 321 are rotatably connected to the pressing block 33. The disc sieves 322 are evenly distributed at equal intervals along the axial direction of the rotating shaft 321. The disc sieves 322 on two adjacent rotating shafts 321 are arranged staggeredly, forming many narrow-width and relatively long-slit slits for water leakage. The rotation of the disc sieve 322 can loosen the raw coal at the bottom layer, which is beneficial for the water gushing out from the pores of the raw coal to pass through the sieve downward. The width of the slits formed between the disc sieves 322 is relatively narrow, which restricts the raw coal with a size larger than the width of the slits from entering the lower chain path, and can reduce the recovery amount of the raw coal under the sieve. Secondly, the adjacent disc sieves 322 can clean the adhered coal mud from each other during rotation, ensuring the smoothness of the water leakage holes.

[0049] Certainly, the disc sieve 322 and the rotating shaft 321 can also be eccentrically installed. In this installation method, the maximum limit movement trajectory of the disc sieve 322 does not interfere with the adjacent rotating shaft 321 in terms of movement.

[0050] In one embodiment, 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. The input end of the multi-axis output reducer 22 is connected to the motor 21, and the output ends of the multi-axis output reducer 22 are correspondingly connected to each sieve shaft 32.

[0051] Among them, the multi-axis output reducer 22 includes a housing 221, an input gear shaft 222, and output gear shafts 223. The housing 221 is installed on the base 31. The output gear shafts 223 are sequentially rotatably installed in the housing 221, so that the axes of two adjacent output gear shafts 223 are parallel. 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.

[0052] Certainly, the gear teeth numbers of the corresponding gears of two adjacent output gear shafts 223 are different, and the gear teeth numbers of the corresponding gears of the spaced-apart output gear shafts 223 are the same.

[0053] 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-apart 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-apart rotating shafts 321 are the same. At the same time, the disc sieve 322 and the rotating shaft 321 are eccentrically installed, which will cause the disc sieve 322 to form irregular fluctuations up and down. The size of the water leakage holes formed between the adjacent disc sieves 322 also changes irregularly at all times. Using this dynamic irregular fluctuation can loosen the underlying materials, facilitate water penetration, adopt an irregular fluctuation sieve surface, have better dehydration ability, require a shorter length of the drainage trough, can effectively shorten the suspended section length of the coal-water separation transfer machine, avoid the collapse of the waist caused by 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 disc sieve 322 is eccentrically installed, when the disc sieve 322 rotates, it can impact the disc sieve 322 on the adjacent rotating shaft 321, and use the disc sieve 322 to drive the coal-water mixture to form a rapid scour between the adjacent disc sieves 322 on the same rotating shaft 321, so as to be able to clean the coal slime attached to the disc sieve 322 more efficiently; and the impact formed by the disc sieve 322 can also hammer the underlying materials, promote the loosening of the deposited materials, prevent the accumulation of materials between the disc sieve 322 and the adjacent rotating shaft 321, and facilitate water leakage.

[0054] Please refer to Figure 9 、 Figure 10 In an embodiment, the material feeding mechanism 04 includes a flange 41, a star-shaped material feeding claw 42, and a reduction motor 43; the flange 41 is connected and installed at the bottom of the lower chain path of the convex groove 200, a discharge port 411 is opened on one side of the bottom of the flange 41, and the discharge port 411 communicates with the inlet end of the box body 51; the star-shaped material feeding claw 42 is rotatably installed in the flange 41, and the bottom of the star-shaped material feeding claw 42 fits with the bottom of the flange 41, and the reduction motor 43 is installed outside the flange 41 and the output end is connected to the input end of the star-shaped material feeding claw 42 to drive the star-shaped material feeding claw 42 to rotate circumferentially. During the rotation of the star-shaped material feeding claw 42, relying on the rotation of the star-shaped material feeding claw 42, the coal-water mixture will be dialed to the periphery of the flange 41. Under the continuous rotation of the star-shaped material feeding claw 42, the coal-water mixture forms a vortex in the flange 41 in the same direction as the rotation direction of the star-shaped material feeding claw 42, so that the solid coal can be scoured and dialed by the water flow and the material feeding action of the star-shaped material feeding claw 42 at the same time, and the coal-water mixture can be quickly discharged from the discharge port 411.

[0055] Specifically, the star-shaped coal feeding claw 42 includes a disk body 421, a coal feeding plate 422, and a substrate 423. The disk body 421 is rotatably installed in the flange 41. The input end of the disk body 421 is connected to the input end of the reduction motor 43. The substrate 423 is fixed on the outer wall of the disk body 421 and is evenly distributed circumferentially along the outer wall of the disk body 421. The substrate 423 is in contact with the bottom of the flange 41. When the substrate 423 rotates with the disk body 421, the slime attached to the bottom of the flange 41 can be scraped up by the substrate 423 and is conducive to discharging under the scouring action of water flow. The coal feeding plate 422 is fixed on the outer wall of the disk body 421, and the lower end of the coal feeding plate 422 is fixed on the substrate 423.

[0056] Among them, the coal feeding plate 422 is arc-shaped, and the side where the coal feeding plate 422 bulges outward contacts the material. After the coal feeding plate 422 contacts the solid coal, since the side where the coal feeding plate 422 bulges outward is arc-shaped, on the one hand, the rotation resistance can be reduced. On the other hand, through the action of the coal feeding plate 422 and the action of the centrifugal force of water flow, the solid coal can be dispersed along the coal feeding plate 422 to the periphery of the flange 41, and the coal-water mixture can form a vortex, so that the coal-water mixture can be discharged from the discharge port 411 under the guidance of the coal feeding plate 422.

[0057] In one embodiment, in order to facilitate the discharge of water in the box body 51, an overflow hole 511 is provided on the side of the box body 51. Of course, a mounting flange 512 can also be provided on the box body 51, and the mounting flange 512 can be externally connected to a water pump to quickly discharge the separated water through the water pump.

[0058] Specifically, a guide chute 55 communicating with the transfer machine is provided at the outlet end of the box body 51, so that the screened solid coal can be recovered to the transfer machine.

[0059] 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 by this. 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 transfer machine for a chute with adaptive working face water inflow, characterized by: A drainage trough and a convex groove are sequentially arranged on the suspended section of the transfer machine; there are at least two drainage troughs, and the convex groove is connected to the drainage trough at the end; The drain trough comprises a trough body, a power unit, and a cross screen assembly; a material leakage hole is provided on the middle plate in the trough body, and a square hole is provided 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 material leakage hole; a wear-resistant slide bar is provided at the upper end of the cross screen assembly, and the wear-resistant slide bar is inserted into the middle plate of the trough body and is flush with the middle plate of the trough body; an adjustment assembly for adjusting the height of the cross screen assembly is provided on the side of the trough body below the square hole; a capping plate is provided on the top of the trough body, and a live middle plate is also provided on the capping plate. When coal-water separation is not required, the height of the adjustment assembly 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, and the live middle plate is inserted into the square hole along the top of the cross screen assembly to block the material leakage hole; A material-dispensing mechanism connected to the chain path under the convex groove is provided below the convex groove, and the outlet end of the material-dispensing mechanism is connected to a sorting and transporting mechanism for separating and transporting solid raw coal from water, and the outlet end of the sorting and transporting mechanism is connected to a transfer machine to recover the raw coal under the screen to the transfer machine; The sorting and transporting mechanism comprises a box body, a power shaft, a spiral blade, and a driving unit; the inlet end of the box body is connected to the outlet end of the material-dispensing mechanism, a water level sensor is installed at the lower end of the box body, the power shaft is rotatably installed in the box body along the length direction of the box body, the spiral blade is fixedly installed on the outer wall of the power shaft along the axial direction of the power shaft, a gap is left between the spiral blade and the outer wall of the power shaft, the driving unit is installed outside the box body, and the input end of the driving unit is connected to the input end of the power shaft; It also includes a controller, which is electrically connected to the water level sensor and the frequency converter of the transfer machine drive motor through a wire; when the water inflow from the coal mining face is less than the normal value, the value detected by the water level sensor is less than the set value, and the controller keeps the frequency converter output frequency unchanged and the output speed of the transfer machine drive motor unchanged; when the water inflow from the coal mining face is greater than or equal to the normal value, the value detected by the water level sensor is within the error range of the set value, and the controller sends a command to the frequency converter to reduce the output speed of the transfer machine drive motor and the scraper chain speed. After the water level signal remains unchanged within the error range of the set value, the output frequency of the frequency converter continues to be reduced in stages until the water level signal is lower than the set value and remains unchanged within a certain error range; when the water level signal drops rapidly, the output frequency of the frequency converter is increased in stages and the transfer machine chain speed is restored in stages.

2. The coal-water separation transfer machine for the chute with adaptive working face water inflow according to claim 1 is characterized by: The adjustment assembly includes a fixed plate and an adjustment rod; the fixed plate is fixed to the side of the trough body and is located below the square hole, the adjustment rod is longitudinally threadedly connected to the fixed plate, the upper end of the adjustment rod is in contact with the bottom of the cross screen assembly, and the height of the cross screen assembly can be adjusted by rotating the adjustment rod.

3. The coal-water separation transfer machine for the chute capable of self-adapting to the water inflow of the working face according to claim 2 is characterized by: The cross screen assembly includes a base, a screen shaft, and a pressure block; the pressure blocks are fixed on the base in opposite directions, the screen shaft is evenly spaced along the arrangement direction of the wear-resistant sliding strips, and the two ends of the screen shaft are rotatably connected to the pressure blocks, and notches are reserved on the screen shaft for the wear-resistant sliding strips to be placed in, so that the screen shaft does not interfere with the wear-resistant sliding strips when rotating; the screen shaft includes a rotating shaft and a disc screen piece; the two ends of the rotating shaft are rotatably connected to the pressure blocks, the disc screen pieces are evenly spaced along the axial direction of the rotating shaft, and the disc screen pieces on two adjacent rotating shafts are staggered.

4. The coal-water separation transfer machine for the chute capable of self-adapting to the water inflow of the working face according to claim 3 is characterized by: The disc screen is eccentrically mounted to the rotating shaft, and the maximum limit motion trajectory of the disc screen does not interfere with the motion of the adjacent rotating shaft.

5. The coal-water separation transfer machine for the chute capable of self-adapting to the water inflow of the working face according to claim 4 is characterized by: The power unit includes an electric motor and a multi-axis output reducer; the multi-axis output reducer is installed on a base, and the input end of the multi-axis output reducer is connected to the electric motor, and the output end of the multi-axis output reducer is correspondingly connected to each screen shaft; the multi-axis output reducer includes a housing, an input gear shaft, and an output gear shaft; the housing is installed on the base, and the output gear shafts are rotatably installed in the housing in sequence, so that the axes of two adjacent output gear shafts are parallel and the two adjacent output gear shafts are meshed, and 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; the adjacent output gear shafts have different corresponding gear teeth, and the output gear shafts spaced apart have the same corresponding gear teeth.

6. The coal-water separation transfer machine for the chute capable of self-adapting to the water inflow of the working face according to any one of claims 1 to 5, characterized in that: The material-discharging mechanism includes a flange, a star-shaped material-discharging claw, and a reduction motor; the flange is connected and installed at the bottom of the chain path under the convex groove, a discharge port is opened on one side of the bottom of the flange, and the discharge port is connected to the inlet end of the box body; the star-shaped material-discharging claw is rotatably installed in the flange, and the bottom of the star-shaped material-discharging claw is fitted with the bottom of the flange; the reduction motor is installed on the outside of the flange and the output end is connected to the input end of the star-shaped material-discharging claw to drive the star-shaped material-discharging claw to rotate circumferentially.

7. The coal-water separation transfer machine for the chute capable of self-adapting to the water inflow of the working face according to claim 6, characterized in that: The star-shaped material-discharging claw includes a disc body, a material-discharging plate, and a base plate; the disc body is rotatably installed in the flange, the input end of the disc body is connected to the input end of the reduction motor, the base plate is fixed on the outer wall of the disc body and is evenly distributed along the circumference of the outer wall of the disc body, the base plate is fitted with the bottom of the flange, the material-discharging plate is fixed on the outer wall of the disc body, and the lower end of the material-discharging plate is fixed on the base plate.

8. The coal-water separation transfer machine for the chute capable of self-adapting to the water inflow of the working face according to claim 7 is characterized by: The material-diverting plate is arc-shaped, and the side of the material-diverting plate that bulges outwards contacts with the material.

9. The coal-water separation transfer machine for the chute capable of self-adapting to the water inflow of the working face according to claim 1, characterized in that: The side of the box body is provided with an overflow hole and a mounting flange for an external water pump.

10. The coal-water separation transfer machine for the chute capable of self-adapting to the water inflow of the working face according to claim 9, characterized in that: The outlet end of the box body is provided with a material guide trough connected to the transfer machine.

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