Coal washing device for coal mine

Abstract

The coal washing device comprises a water storage tank, supporting rods, a top plate, a sieve plate, a cleaning mechanism and a connecting mechanism, the supporting rods are fixedly connected to the edge positions of the four corners of the top of the water storage tank, the top plate is fixedly connected to the top ends of the supporting rods, and the sieve plate is fixedly connected to the top end of the top plate. According to the coal washing device for the coal mine, a screw rod is driven to rotate through starting of a servo motor, a sliding block is driven to move when the screw rod rotates by utilizing limitation of a sliding rod, so that a connecting box is driven to move, a scraping plate is made to be tightly attached to the top of the sieve plate through the counter-acting force of an extrusion spring, and therefore the coal washing effect is improved. When the connecting box moves, the scraper is driven to move to clean the top of the sieve plate, so that discharging is facilitated, the sieve plate is cleaned and scraped during discharging, impurities are prevented from caking at the top of the sieve plate, incomplete sorting next time is prevented, manual cleaning is avoided, and manpower and material resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal washing in coal mines, in particular to a coal washing device for coal mines. Background Art

[0002] Coal washing is an indispensable process for further processing of coal. Raw coal is the coal mined directly from the mine. Many impurities are mixed in during the mining process. Coal washing is an industrial process that removes impurities from raw coal or classifies coal according to quality through the impact of water flow.

[0003] At present, during the use process, a screen plate is needed to block the coal ore. When used for a long time, it is easy to form lumps on the surface of the screen plate, which makes the sorting incomplete and reduces the efficiency of coal washing. Therefore, it is necessary to manually clean the screen regularly, which wastes manpower and material resources. For this reason, we have proposed a coal washing device for coal mines. Utility Model Content

[0004] The purpose of the utility model is to provide a coal washing device for coal mines, so as to solve the problem raised in the above background technology that during the current use process, a sieve plate is needed to block the coal ore, and when used for a long time, caking is easily generated on the surface of the sieve plate, resulting in incomplete sorting and reducing the efficiency of coal washing. Therefore, it is necessary to manually clean the sieve regularly, wasting manpower and material resources.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a coal washing device for coal mines, comprising a water storage tank, a support rod, a top plate, a sieve plate, a cleaning mechanism and a connecting mechanism, wherein the support rod is fixedly connected to the four corners of the top of the water storage tank, the top plate is fixedly connected to the top of the support rod, the sieve plate is fixedly connected to the top of the water storage tank through the connecting mechanism, the cleaning mechanism is fixedly connected to the inner side of the support rod, a pump is fixedly connected to the middle of the rear side of the top of the top plate, the inlet end of the pump is fixedly connected to a water inlet pipe, the outlet end of the pump is fixedly connected to a water outlet pipe, and the water outlet pipe runs through the The middle part of the bottom of the top plate and the outlet end of the water outlet pipe are fixedly connected with a spray plate, the cleaning mechanism includes a screw rod, a sliding rod, a slider, a connecting box, an extrusion spring, a scraper and a servo motor, the bottom of the opposite side of the left support rod is rotatably connected with a screw rod, the bottom of the opposite side of the right support rod is fixedly connected with a sliding rod, the screw rod and the outer side of the sliding rod are slidably connected with a slider, the opposite sides of the left and right sliders are fixedly connected with a connecting box, the top of the inner cavity of the connecting box is evenly fixedly connected with an even extrusion spring, the bottom end of the extrusion spring is fixedly connected with a scraper, and the bottom of the front end of the left front support rod is fixedly connected to the servo motor through a motor frame.

[0006] As a further description of the above technical solution:

[0007] A drain pipe is fixedly connected to the middle of the bottom right side of the water storage tank, and a valve is fixedly connected to the outside of the drain pipe.

[0008] As a further description of the above technical solution:

[0009] The bottom of the scraper is fitted with the top of the sieve plate, and the scraper is slidably connected to the inner side of the connection box.

[0010] As a further description of the above technical solution:

[0011] The left sliding block is slidably connected to the outside of the screw rod through a screw rod seat, the input end of the servo motor is electrically connected to the output end of the external power supply, and the output shaft end of the servo motor is fixedly connected to the front end of the screw rod.

[0012] As a further description of the above technical solution:

[0013] The connecting mechanism includes a fixing plate, a fixing rod, a pressure plate, a reset spring, a pull plate and a fixing hole. A fixing plate is fixedly connected to the middle of the left and right sides of the top of the water tank, a fixing rod is slidably connected through the middle of the opposite sides of the left and right fixing plates, a pressure plate is fixedly connected to the outer side of the fixing rod, a reset spring is sleeved on the outer side of the fixing rod, a pull plate is fixedly connected to the ends of the left and right fixing rods that are away from each other, and fixing holes are opened through the middle of the left and right sides of the sieve plate.

[0014] As a further description of the above technical solution:

[0015] The two ends of the return spring are fixedly connected to the fixing plate and the opposite sides of the pressing plate respectively.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The coal washing device for coal mines starts the servo motor to drive the screw to rotate. By utilizing the limitation of the slide bar, when the screw rotates, it drives the slider to move, thereby driving the connecting box to move. Through the reaction force of the extrusion spring, the scraper is close to the top of the screen plate. When the connecting box moves, it drives the scraper to move to clean the top of the screen plate. It is not only convenient for unloading, but also cleans and scrapes the screen plate during unloading to avoid impurities agglomerating on the top of the screen plate, preventing incomplete sorting next time, and avoiding manual cleaning, saving manpower and material resources.

[0018] 2. When the screen plate of the coal washing device for coal mines needs to be replaced, the pull plate is pulled to make the fixing rod withdraw from the fixing hole, drive the pressure plate to move, squeeze the reset spring, and disassemble the screen plate. When installing, the screen plate is placed on the top of the water tank, aligning the fixing hole with the fixing rod, loosening the pull plate, and resetting the reset spring to make the fixing rod embedded in the fixing hole to complete the replacement, thereby facilitating the replacement of the screen plate, improving the convenience of replacement, saving replacement time, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a coal washing device for coal mines proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the cleaning mechanism structure of a coal washing device for coal mines proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the installation structure of a return spring of a coal washing device for a coal mine proposed by the utility model;

[0022] Figure 4 The utility model is a schematic diagram of the structure of the fixed holes of a coal washing device for coal mines.

[0023] In the figure: 100, water tank; 110, drain pipe; 200, support rod; 300, top plate; 310, pump; 320, water inlet pipe; 330, water outlet pipe; 340, spray plate; 400, sieve plate; 500, cleaning mechanism; 510, screw rod; 520, slide rod; 530, slider; 540, connecting box; 550, extrusion spring; 560, scraper; 570, servo motor; 600, connecting mechanism; 610, fixing plate; 620, fixing rod; 630, pressure plate; 640, reset spring; 650, pull plate; 660, fixing hole. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides a coal washing device for coal mines, which is not only convenient for unloading, but also cleans and scrapes the screen plate when unloading, so as to avoid impurities agglomerating on the top of the screen plate and prevent incomplete sorting next time, and avoids manual cleaning, saving manpower and material resources. Figure 1-4 , including a water storage tank 100, a support rod 200, a top plate 300, a sieve plate 400, a cleaning mechanism 500 and a connecting mechanism 600;

[0028] Please refer again Figure 1 , the water storage tank 100 is used to install the support rod 200, the top plate 300, the screen plate 400, the cleaning mechanism 500 and the connecting mechanism 600;

[0029] Please refer again Figure 1The support rod 200 is fixedly connected to the four corners of the top of the water tank 100 for installing the top plate 300. The top plate 300 is fixedly connected to the top of the support rod 200 for installing the pump 310. The sieve plate 400 is fixedly connected to the top of the water tank 100 through the connecting mechanism 600. The cleaning mechanism 500 is fixedly connected to the inner side of the support rod 200. The middle part of the top rear side of the top plate 300 is fixedly connected to the pump 310. The inlet end of the pump 310 is fixedly connected to the water inlet pipe 320. The outlet end of the pump 310 is fixedly connected to the outlet pipe 330. The outlet pipe 330 runs through the middle part of the bottom of the top plate 300, and the outlet end of the outlet pipe 330 is fixedly connected to the spray plate 340.

[0030] Please refer again Figure 2 , the cleaning mechanism 500 includes a screw rod 510, a slide rod 520, a slider 530, a connecting box 540, a squeeze spring 550, a scraper 560 and a servo motor 570;

[0031] Please refer again Figure 2 A screw rod 510 is rotatably connected to the bottom of the left support rod 200, and a slide rod 520 is fixedly connected to the bottom of the right support rod 200. The outer sides of the screw rod 510 and the slide rod 520 are slidably connected to the slider 530.

[0032] Please refer again Figure 2 A connecting box 540 is fixedly connected to the opposite sides of the left and right sliders 530, an even extrusion spring 550 is evenly fixedly connected to the top of the inner cavity of the connecting box 540, a scraper 560 is fixedly connected to the bottom end of the extrusion spring 550, and a servo motor 570 is fixedly connected to the bottom of the front end of the left front support rod 200 through a motor frame.

[0033] To summarize, by starting the servo motor 570, the lead screw 510 is driven to rotate, and by utilizing the limitation of the slide bar 520, when the lead screw 510 rotates, the slider 530 is driven to move, thereby driving the connecting box 540 to move, and by the reaction force of the extrusion spring 550, the scraper 560 is made close to the top of the sieve plate 400. When the connecting box 540 moves, the scraper 560 is driven to move to clean the top of the sieve plate 400, which is not only convenient for unloading, but also cleans and scrapes the sieve plate 400 during unloading to avoid impurities from agglomerating on the top of the sieve plate 400, thereby preventing incomplete sorting next time and avoiding manual cleaning, thus saving manpower and material resources.

[0034] Please refer again Figure 1 A drain pipe 110 is fixedly connected to the middle of the bottom right side of the water tank 100 , and a valve is fixedly connected to the outside of the drain pipe 110 .

[0035] Please refer again Figure 2 The bottom of the scraper 560 fits with the top of the sieve plate 400 , and the scraper 560 is slidably connected to the inner side of the connection box 540 .

[0036] Please refer again Figure 2 The left slider 530 is slidably connected to the outside of the screw rod 510 through the screw rod seat, the input end of the servo motor 570 is electrically connected to the output end of the external power supply, and the output shaft end of the servo motor 570 is fixedly connected to the front end of the screw rod 510.

[0037] Please refer again Figure 3-4 The connecting mechanism 600 includes a fixing plate 610, a fixing rod 620, a pressing plate 630, a return spring 640, a pulling plate 650 and a fixing hole 660. The fixing plate 610 is fixedly connected to the middle of the left and right sides of the top of the water tank 100. The fixing rod 620 is slidably connected through the middle of the opposite sides of the left and right fixing plates 610. The pressing plate 630 is fixedly connected to the outer side of the fixing rod 620. The return spring 640 is sleeved on the outer side of the fixing rod 620. The pulling plate 650 is fixedly connected to the ends of the left and right fixing rods 620 that are away from each other. A fixing hole 660 is opened through the middle of the left and right sides of the sieve plate 400.

[0038] Please refer again Figure 3 The two ends of the return spring 640 are fixedly connected to the opposite sides of the fixing plate 610 and the pressing plate 630 respectively.

[0039] To summarize, when the sieve plate 400 needs to be replaced, pull the pull plate 650 to make the fixing rod 620 withdraw from the fixing hole 660, drive the pressure plate 630 to move, squeeze the reset spring 640, and disassemble the sieve plate 400. When installing, place the sieve plate 400 on the top of the water tank 100, align the fixing hole 660 with the fixing rod 620, loosen the pull plate 650, and reset the reset spring 640 to make the fixing rod 620 embedded in the fixing hole 660 to complete the replacement, thereby facilitating the replacement of the sieve plate 400, improving the convenience of replacement, saving replacement time, and improving the practicality of the device.

[0040] In specific use, the technical personnel in this field connect the external water supply source to the water inlet pipe 320, place the coal on the top of the screen plate 400, start the pump 310, send water into the water outlet pipe 330, enter the spray plate 340, and clean the coal through the spray plate 340. After the cleaning is completed, the pump 310 is turned off, and the servo motor 570 is started. By starting the servo motor 570, the screw rod 510 is driven to rotate. By utilizing the limitation of the slide rod 520, when the screw rod 510 rotates, the slider 530 is driven to move, thereby driving the connection box 540 to move, and the reaction force of the extrusion spring 550 is used to make the scraper 560 close to the screen plate 400. At the top, when the connecting box 540 moves, it drives the scraper 560 to move, cleans the top of the sieve plate 400, and at the same time, the scraper 560 also pushes the coal to unload the coal. When the sieve plate 400 needs to be replaced, pull the pull plate 650 to make the fixing rod 620 withdraw from the fixing hole 660, drive the pressure plate 630 to move, squeeze the reset spring 640, and disassemble the sieve plate 400. When installing, place the sieve plate 400 on the top of the water tank 100, align the fixing hole 660 with the fixing rod 620, loosen the pull plate 650, and reset the reset spring 640 to make the fixing rod 620 embedded in the fixing hole 660 to complete the replacement.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" 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 utility model. 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.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A coal washing device for coal mines, characterized in that: The invention comprises a water storage tank (100), a support rod (200), a top plate (300), a sieve plate (400), a cleaning mechanism (500) and a connecting mechanism (600), wherein the support rod (200) is fixedly connected to the four corners of the top of the water storage tank (100), the top plate (300) is fixedly connected to the top of the support rod (200), and the sieve plate (400) is fixedly connected to the water storage tank (100) through the connecting mechanism (600). ), the cleaning mechanism (500) is fixedly connected to the inner side of the support rod (200), a pump (310) is fixedly connected to the middle of the rear side of the top of the top plate (300), the inlet end of the pump (310) is fixedly connected to the water inlet pipe (320), the outlet end of the pump (310) is fixedly connected to the water outlet pipe (330), the water outlet pipe (330) passes through the middle of the bottom of the top plate (300), and the outlet end of the water outlet pipe (330) is fixedly connected to the water inlet pipe (320). A spray plate (340) is fixedly connected thereto. The cleaning mechanism (500) comprises a screw rod (510), a slide rod (520), a slider (530), a connection box (540), an extrusion spring (550), a scraper (560) and a servo motor (570). The screw rod (510) is rotatably connected to the bottom of the opposite side of the left support rod (200). The slide rod (520) is fixedly connected to the bottom of the opposite side of the right support rod (200). The slider (530) is slidably connected to the outer sides of the screw rod (510) and the slide rod (520). The opposite sides of the sliders (530) on the left and right sides are fixedly connected thereto. An even extrusion spring (550) is evenly fixedly connected to the top of the inner cavity of the connection box (540). The bottom end of the extrusion spring (550) is fixedly connected to the scraper (560). The front end bottom of the left front support rod (200) is fixedly connected to the servo motor (570) via a motor frame.

2. A coal washing device for coal mines according to claim 1, characterized in that: A drainage pipe (110) is fixedly connected to the middle of the bottom of the right side of the water storage tank (100), and a valve is fixedly connected to the outside of the drainage pipe (110).

3. A coal washing device for coal mines according to claim 1, characterized in that: The bottom of the scraper (560) is in contact with the top of the sieve plate (400), and the scraper (560) is slidably connected to the inner side of the connection box (540).

4. A coal washing device for coal mines according to claim 1, characterized in that: The left slider (530) is slidably connected to the outside of the screw (510) via a screw seat, the input end of the servo motor (570) is electrically connected to the output end of an external power supply, and the output shaft end of the servo motor (570) is fixedly connected to the front end of the screw (510).

5. A coal washing device for coal mines according to claim 1, characterized in that: The connection mechanism (600) comprises a fixing plate (610), a fixing rod (620), a pressure plate (630), a reset spring (640), a pull plate (650) and a fixing hole (660); the fixing plate (610) is fixedly connected to the middle of the left and right sides of the top of the water storage tank (100); the fixing rod (620) is slidably connected through the middle of the opposite sides of the left and right fixing plates (610); the outer side of the fixing rod (620) is fixedly connected to the pressure plate (630); the outer side of the fixing rod (620) is sleeved with a reset spring (640); the pull plate (650) is fixedly connected to the ends of the left and right fixing rods (620) that are away from each other; and the fixing hole (660) is opened through the middle of the left and right sides of the sieve plate (400).

6. A coal washing device for coal mines according to claim 5, characterized in that: Two ends of the return spring (640) are respectively fixedly connected to the fixing plate (610) and the opposite sides of the pressing plate (630).

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