Coal slag separation and conveying device

Abstract

The present invention discloses a coal slag separation and conveying device, comprising a main coal channel, a coal slag channel and a coal storage channel, wherein a switching mechanism is provided between the coal slag channel and the coal storage channel, wherein the switching mechanism comprises a switching plate, wherein one end of the switching plate is rotatably installed at the junction through a rotating shaft, wherein the bottom end of the rotating shaft is transmission-connected with a switching motor, wherein the switching motor is fixedly installed on the bottom wall at the junction of the coal slag channel and the coal storage channel, and wherein the free end of the switching plate alternately fits the two side walls of the main coal channel under the drive of the switching motor. The present invention has the ability of elastic deformation through the flexible connection part provided at the end of the switching plate, so when the switching plate fits the side wall of the main coal channel, the flexible connection part is squeezed on the side wall by the switching plate, and the flexible connection part is elastically deformed to fill the gap between the switching plate and the side wall of the main coal channel, thereby effectively preventing the coal powder in the coal slag from leaking into the coal storage channel.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine transportation equipment, and in particular relates to a coal slag separation and transportation device. Background Art

[0002] There are many types of slag. When mining coal, slag is a type of solid waste in the mining industry. When mining underground, the same conveying channel is needed to transport coal and slag. After being transported outside the mine, they are introduced into different conveyors. Slag is sent to the slag treatment pool, and coal is sent to the coal storage bin. If the switch is not timely, slag will be sent to the coal storage bin, affecting the coal storage yield. Therefore, how to quickly switch the transportation of coal and slag is an urgent problem to be solved.

[0003] The existing application number is CN201420709465X, which is a coal chute, coal slag separation device, belonging to the field of coal mine equipment, including a main coal channel, a valve plate, a branch coal channel, and a coal slag channel; one end of the main coal channel is installed at the end of the conveyor coming up from the underground, and is connected to the underground conveyor, and the other end is connected to the branch coal channel and the coal slag channel; one end of the branch coal channel is connected to the main coal channel, and forms an intersection connection with the coal slag channel, and the other end is connected to a coal distributor; one end of the coal slag channel is connected to the main coal channel, and has an intersection connection with the main coal channel, and the other end is connected to the coal slag conveyor; the valve plate is installed at the intersection of the branch coal channel and the coal slag channel with a rotating shaft.

[0004] The above scheme switches different coal channels by rotating the valve plate, so as to prevent the mixing of coal slag and coal and improve the quality of coal. However, it does not take into account that a large amount of coal powder and crushed slag are mixed in the coal slag. When the valve plate and the coal channel cannot be completely close together when in contact, the coal powder and crushed slag will fall from the gap onto the coal channel. Over time, a large amount of coal slag will be transported to the coal storage bin. Moreover, when transporting coal, the coal will inevitably collide with the valve plate, causing the coal to break into slag. Summary of the invention

[0005] The purpose of the present invention is to provide a coal slag separation and conveying device to solve the problem that if a large amount of coal powder and crushed slag are mixed in the coal slag, and the valve plate cannot be completely tightly attached to the coal channel when in contact, the coal powder and crushed slag will fall from the gap onto the coal separation channel, which will cause a large amount of coal slag to be conveyed into the coal storage bin over time, and when transporting coal, the coal will inevitably collide with the valve plate, causing the coal to break into slag.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A coal slag separation and conveying device, comprising a main coal channel, a coal slag channel and a coal storage channel, wherein the main coal channel is connected to an underground conveyor, the coal slag channel is connected to the coal slag conveyor, and the coal storage channel is connected to the coal storage conveyor;

[0008] A switching mechanism is provided between the cinder channel and the coal storage channel, the switching mechanism comprising a switching plate, one end of the switching plate is rotatably mounted at the junction of the cinder channel and the coal storage channel via a rotating shaft, a switching motor is transmission-connected to the bottom end of the rotating shaft, the switching motor is electrically connected to a controller, the switching motor is fixedly mounted on the bottom wall at the junction of the cinder channel and the coal storage channel, and the free end of the switching plate alternately adheres to the two side walls of the main coal channel under the drive of the switching motor;

[0009] A flexible connection portion is provided at the free end of the switching plate, and the flexible connection portion elastically fits when the switching plate contacts the side wall of the main coal channel; a plurality of arc-shaped spring sheets are equidistantly fixedly connected to both sides of the switching plate, and the free ends of the arc-shaped spring sheets shrink toward the direction of the rotating shaft.

[0010] Preferably, the flexible connection part is made of silicone material, and one end of the flexible connection part is adhesively fixed to the free end of the switching plate, the thickness of the flexible connection part gradually decreases in the direction away from the switching plate, the flexible connection part is arranged in a bullet shape, and a through hole is arranged in the middle thereof.

[0011] Preferably, the switching plate is arranged as a telescopic structure, the switching plate comprises a plate body and a telescopic plate, a groove is provided at the bottom of the plate body, the telescopic plate is slidably installed in the groove, side strips are fixed on both sides of the bottom of the telescopic plate, the cross-section of the side strip is arranged to be a right-angled triangle, and the telescopic plate is always in contact with the surface of the cinder channel and the coal storage channel under the action of the driving member.

[0012] Preferably, the driving member comprises a magnetic plate, the magnetic plate is embedded and installed at the bottom of the telescopic plate, a magnet is fixed on the bottom wall at the junction of the coal ash channel and the coal storage channel, and the magnet is magnetically attracted to the magnetic plate.

[0013] Preferably, the driving member is an elastic member, and the elastic member is connected to the top wall of the groove and the top of the telescopic plate.

[0014] Preferably, a guide mechanism is installed on the cinder channel, and the guide mechanism includes guide plates, and the guide plates are symmetrically distributed in pairs, and the two guide plates are respectively placed on the two side walls of the cinder channel, and one end of each guide plate is hinged to the side wall of the cinder channel, and the middle part of the guide plate is elastically connected to the side wall of the cinder channel through a spring.

[0015] Preferably, a pushing assembly is installed on the top of the side wall of the cinder channel, and the pushing assembly includes a pulley. The pulley is provided with two and is rotatably connected to the top of the side wall of the cinder channel. The two pulleys are driven by a transmission belt, one of the pulleys is connected to a driving motor, and the driving motor is electrically connected to a controller. A pushing rod is fixedly connected to the wheel axle of the pulley, and the pushing rod contacts the guide plate when it rotates circumferentially.

[0016] Preferably, the free ends of the two guide plates move toward each other under the push of the push rod, and the two guide plates are arranged in an arc shape, and the distance between the two guide plates gradually decreases along the conveying direction of the coal slag channel.

[0017] Preferably, a plurality of soft plastic sheets are distributed in a row on one side where the two guide plates are close to each other.

[0018] Preferably, a vacuum cleaner is installed on the coal storage channel, a dust hood is installed at the end of the vacuum cleaner, and the dust hood is arranged in a funnel shape, with the larger end of the two ends facing the coal storage channel.

[0019] Technical effects and advantages of the present invention: Compared with the prior art, the coal slag separation and conveying device proposed by the present invention has the following advantages:

[0020] 1. The present invention arranges arc-shaped spring pieces on both sides of the switching plate, and a plurality of groups of arc-shaped spring pieces are combined to form a buffer part. Since only one end of the arc-shaped spring piece is fixed to the switching plate, when the coal contacts the arc-shaped spring piece, the free end of the arc-shaped spring piece will be pressed to elastically deform, thereby releasing the impact force of the coal and ensuring the integrity of the coal. At the same time, compared with a plate-shaped or other sharp structure, the arc-shaped mechanism has a smooth characteristic when in contact with the coal, so it can play a role of smooth transition, minimize the damage to the coal as much as possible, and comprehensively improve the quality of the coal.

[0021] 2. The present invention sets the switching plate as a telescopic mechanism. Under the action of the driving member, the bottom surface of the telescopic plate is attached to the bottom wall of the main coal channel. When the switching motor drives the switching plate to swing, the telescopic plate will drive the side strips to scrape the bottom wall of the channel in the lower area, thereby cleaning up most of the coal powder, reducing the amount of coal powder carried away during coal transportation, and indirectly improving the quality of coal.

[0022] 3. The present invention can continuously pull the telescopic plate to fit onto the bottom wall of the channel through the suction force between the magnetic plate and the magnet. On the one hand, the gap between the telescopic plate and the bottom wall of the channel is reduced to prevent coal powder leakage; on the other hand, the cleaning effect on the bottom wall of the channel is stronger, further reducing the amount of coal powder carried away during coal transportation, thereby indirectly improving the quality of coal; and the setting of the magnet can absorb the ferromagnetic material contained in the coal slag, playing a role of pre-screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of a three-dimensional structure of an embodiment of the present invention.

[0024] Figure 2 It is a top view of the present invention.

[0025] Figure 3 It is a front view of the present invention.

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the switching structure in the present invention.

[0027] Figure 5 for Figure 4 sectional view of .

[0028] Figure 6 for Figure 1 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] The present invention provides Figure 1-6 A coal slag separation and conveying device is shown,

[0031] Embodiment 1:

[0032] It includes a main coal channel 1, a coal slag channel 2 and a coal storage channel 3, wherein the main coal channel 1 is connected to an underground conveyor, the coal slag channel 2 is connected to the coal slag conveyor, and the coal storage channel 3 is connected to the coal storage conveyor;

[0033] A switching mechanism 4 is provided between the cinder channel 2 and the coal storage channel 3, and the switching mechanism 4 includes a switching plate 41, one end of the switching plate 41 is rotatably installed at the junction of the cinder channel 2 and the coal storage channel 3 through a rotating shaft 42, and a switching motor 43 is transmission-connected to the bottom end of the rotating shaft 42, and the switching motor 43 is electrically connected to a controller, and the switching motor 43 is fixedly installed on the bottom wall at the junction of the cinder channel 2 and the coal storage channel 3, and the free end of the switching plate 41 is alternately attached to the two side walls of the main coal channel 1 under the drive of the switching motor 43;

[0034] The free end of the switching plate 41 is provided with a flexible connection part 44, and the flexible connection part 44 is elastically fitted when the switching plate 41 contacts the side wall of the main coal channel 1; a plurality of arc-shaped spring pieces 46 are fixedly connected to both sides of the switching plate 41 at equal distances, and the free ends of the arc-shaped spring pieces 46 shrink toward the rotating shaft 42. In order to solve the problem that the coal is broken into slag by the valve plate during transportation and the valve plate is not tightly closed and easy to leak coal powder, the present invention sets a flexible connection part 44 to seal the gap, and sets an arc-shaped spring piece 46 to form a buffer part, so as to prevent the coal from directly colliding with the switching plate 41 and causing the coal to break into slag;

[0035] The specific operation is as follows: when transporting coal or coal slag, according to the different requirements of the transported materials, the controller timely controls the switching mechanism 4 to work, controls the switching motor 43 to start, thereby driving the rotating shaft 42 and the connected switching plate 41 to rotate until the switching plate 41 fits the corresponding side wall of the main coal channel 1, thereby realizing the separation and transportation of coal and coal slag;

[0036] Because the flexible connection part 44 connected to the end of the switching plate 41 has the ability of elastic deformation, when the switching plate 41 is attached to the side wall of the main coal channel 1, the flexible connection part 44 is squeezed on the side wall by the switching plate 41, and the flexible connection part 44 is elastically deformed to fill the gap between the switching plate 41 and the side wall of the main coal channel 1, effectively preventing the coal powder in the coal slag from leaking into the coal storage channel 3;

[0037] At the same time, arc-shaped spring pieces 46 are arranged on both sides of the switching plate 41, and a plurality of groups of arc-shaped spring pieces 46 are combined to form a buffer part. Because only one end of the arc-shaped spring piece 46 is fixed to the switching plate 41, when the coal contacts the arc-shaped spring piece 46, the free end of the arc-shaped spring piece 46 will be pressed to elastically deform, thereby releasing the impact force of the coal and ensuring the integrity of the coal. At the same time, compared with plate-shaped or other sharp structures, the arc-shaped mechanism has a smooth characteristic when in contact with the coal, so it can play a role of smooth transition, minimize the damage to the coal, and comprehensively improve the quality of the coal.

[0038] Furthermore, the flexible connection part 44 is made of silicone material, and one end of the flexible connection part 44 is bonded and fixed to the free end of the switching plate 41, the thickness of the flexible connection part 44 gradually decreases in the direction away from the switching plate 41, and the flexible connection part 44 is set in a bullet shape 45, and a through hole 47 is set in the middle. Since the elastic deformation performance of the silicone material is better, it can be better filled into the gap between the switching plate 41 and the side wall of the main coal channel 1 to prevent the coal powder from leaking into the coal storage channel 3, thereby affecting the coal quality; and setting the flexible connection part 44 in a bullet shape 45 and having a hole in the middle can further enhance the elastic deformation performance of the flexible connection part 44, and the sealing effect of the coal powder is better.

[0039] Furthermore, the switching plate 41 is configured as a telescopic structure, and the switching plate 41 includes a plate body 411 and a telescopic plate 412. A groove 413 is provided at the bottom of the plate body 411, and the telescopic plate 412 is slidably installed in the groove 413. Side strips 48 are fixed on both sides of the bottom of the telescopic plate 412, and the cross-section of the side strip 48 is configured to be a right-angled triangle. Under the action of the driving member 49, the telescopic plate 412 is always in contact with the surface of the cinder channel 2 and the coal storage channel 3. Since the main coal channel 1 transports both coal slag and coal, the coal powder contained in the coal slag will inevitably adhere to the bottom wall of the main coal channel 1, and since the influence of gravity is mostly concentrated in the area near the lower part of the channel, the present application sets the switching plate 41 as a telescopic mechanism. Under the action of the driving member 49, the bottom surface of the telescopic plate 412 is attached to the bottom wall of the main coal channel 1. When the switching motor 43 drives the switching plate 41 to swing, the telescopic plate 412 will drive the side strips 48 to scrape the bottom wall of the channel in the lower area, thereby cleaning up most of the coal powder, reducing the amount of coal powder carried away during coal transportation, and indirectly improving the quality of the coal.

[0040] One embodiment of the driving member 49, the driving member 49 includes a magnetic plate 491, the magnetic plate 491 is embedded and installed at the bottom of the telescopic plate 412, and a magnet 492 is fixed on the bottom wall at the junction of the coal slag channel 2 and the coal storage channel 3, and the magnet 492 and the magnetic plate 491 are magnetically attracted. The suction force between the magnetic plate 491 and the magnet 492 can continuously pull the telescopic plate 412 to fit the bottom wall of the channel, on the one hand, reducing the gap between the telescopic plate 412 and the bottom wall of the channel to prevent coal powder leakage; on the other hand, the cleaning effect on the bottom wall of the channel is stronger, further reducing the amount of coal powder carried away when conveying coal, and improving the quality of coal; and the setting of the magnet 492 can absorb the ferromagnetic material contained in the coal slag, which plays a role of pre-screening.

[0041] One embodiment of the driving member 49 is that the driving member 49 is an elastic member 493, and the elastic member 493 is connected to the top wall of the groove 413 and the top of the telescopic plate 412. The elastic member 493 can be a spring 52, and the elastic force of the spring 52 is used to squeeze the telescopic plate 412 to fit the bottom wall of the channel, thereby reducing the gap between the telescopic plate 412 and the bottom wall of the channel to prevent coal powder leakage; and the spring 52 has a lower cost and is easier to install.

[0042] Embodiment 2:

[0043] The difference from Example 1 is that a guide mechanism 5 is installed on the cinder channel 2, and the guide mechanism 5 includes guide plates 51, and the guide plates 51 are symmetrically distributed in pairs, and the two guide plates 51 are respectively placed on the two side walls of the cinder channel 2, and one end of each guide plate 51 is hinged on the side wall of the cinder channel 2, and the middle part of the guide plate 51 is elastically connected to the side wall of the cinder channel 2 through a spring 52. The present invention is installed with a guide mechanism 5, and the guide plate 51 in the guide mechanism 5 is used to form a shape of being larger at the top and smaller at the bottom under the push of the spring 52, so that the switched cinder falls between the two guide plates 51 and is concentrated by the gradually reduced spacing. Compared with the dispersed transported cinder, the concentrated cinder can reduce the risk of dust and falling from the edge.

[0044] Furthermore, a pushing component 53 is installed on the top of the side wall of the coal ash channel 2, and the pushing component 53 includes a pulley 531. The pulley 531 is provided with two and is rotatably connected to the top of the side wall of the coal ash channel 2. The two pulleys 531 are transmitted through a transmission belt 532. One of the pulleys 531 is connected to a driving motor 533, and the driving motor 533 is electrically connected to a controller. A pushing rod 534 is fixedly connected to the axle of the pulley 531, and the pushing rod 534 contacts the guide plate 51 when it rotates circumferentially; the free ends of the two guide plates 51 move toward each other under the push of the pushing rod 534, and the two guide plates 51 are arranged in an arc shape, and the spacing between the two guide plates 51 gradually decreases along the conveying direction of the coal ash channel 2; a plurality of soft plastic sheets 535 are distributed in an array on the side where the two guide plates 51 are close to each other, and the soft plastic sheets 535 form a buffering effect on the coal blocks. When in use, while the coal slag is concentrated toward the middle by the guide plate 51, the controller controls the drive motor 533 in the pushing component 53 to start, thereby driving the pulley 531 and the transmission belt 532 to transmit synchronously, and the axle of the pulley 531 will drive the pushing rod 534 to rotate circumferentially. Since the guide plate 51 is located on the circular motion trajectory of the pushing rod 534, the pushing rod 534 on the pulley 531 will periodically push the guide plate 51, and the two guide plates 51 are passively concentrated toward the middle, thereby squeezing the coal slag in the middle. Due to the existence of the transmission belt 532, while realizing the transmission, the bottom end surface of the transmission belt 532 forms a blocking effect on larger coal blocks that exceed the height, so that the larger coal blocks are temporarily retained between the two guide plates 51, waiting for the two guide plates 51 to be passively concentrated toward the middle, and then forcibly squeezed to break them into small pieces, so as to facilitate the subsequent coal slag processing.

[0045] Embodiment 3:

[0046] The difference from Embodiment 1 or 2 is that a dust collector 6 is installed on the coal storage channel 3, and a dust hood 7 is installed at the end of the dust collector 6. The dust hood 7 is set in a funnel shape, and the larger end of the two ends faces the coal storage channel 3. When in use, a small amount of coal powder is mixed with coal and falls into the coal storage channel 3, affecting the quality of coal in the coal storage bin. Therefore, the dust collector 6 is installed, and the dust collector 6 is used to suck air from the coal being transported, suck out the mixed coal powder, collect it and process it uniformly, and the installed dust hood 7 can expand the dust suction range, thereby enhancing the separation speed of mixed coal powder, and improving the quality of coal in the coal storage bin as a whole.

[0047] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0048] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal slag separation and conveying device, comprising a main coal channel (1), a coal slag channel (2) and a coal storage channel (3), wherein the main coal channel (1) is connected to an underground conveyor, the coal slag channel (2) is connected to the coal slag conveyor, and the coal storage channel (3) is connected to the coal storage conveyor; Features: A switching mechanism (4) is provided between the cinder channel (2) and the coal storage channel (3), the switching mechanism (4) comprising a switching plate (41), one end of the switching plate (41) being rotatably mounted at the junction of the cinder channel (2) and the coal storage channel (3) via a rotating shaft (42), the bottom end of the rotating shaft (42) being transmission-connected with a switching motor (43), the switching motor (43) being electrically connected to a controller, the switching motor (43) being fixedly mounted on the bottom wall at the junction of the cinder channel (2) and the coal storage channel (3), the free end of the switching plate (41) being alternately attached to the two side walls of the main coal channel (1) under the drive of the switching motor (43); A flexible connection portion (44) is provided at the free end of the switching plate (41), and the flexible connection portion (44) is elastically fitted when the switching plate (41) contacts the side wall of the main coal passage (1); a plurality of arc-shaped spring pieces (46) are fixedly connected at equal distances on both sides of the switching plate (41), and the free ends of the arc-shaped spring pieces (46) are contracted toward the direction of the rotating shaft (42); The flexible connection part (44) is made of a silicone material, and one end of the flexible connection part (44) is bonded and fixed to the free end of the switching plate (41). The thickness of the flexible connection part (44) gradually decreases in a direction away from the switching plate (41). The flexible connection part (44) is arranged in a bullet shape (45) and a through hole (47) is arranged in the middle thereof.

2. A slag separation and conveying device according to claim 1, characterized in that: The switching plate (41) is configured as a telescopic structure, and the switching plate (41) comprises a plate body (411) and a telescopic plate (412). A groove (413) is provided at the bottom of the plate body (411), and the telescopic plate (412) is slidably installed in the groove (413). Side strips (48) are fixed on both sides of the bottom of the telescopic plate (412), and the cross section of the side strip (48) is configured to be a right-angled triangle. Under the action of a driving member (49), the telescopic plate (412) is always in contact with the surface of the coal slag channel (2) and the coal storage channel (3).

3. A slag separation and conveying device according to claim 2, characterized in that: The driving member (49) comprises a magnetic plate (491), wherein the magnetic plate (491) is embedded and installed at the bottom of the telescopic plate (412), and a magnet (492) is fixed on the bottom wall at the junction of the coal slag channel (2) and the coal storage channel (3), and the magnet (492) and the magnetic plate (491) are magnetically attracted to each other.

4. A slag separation and conveying device according to claim 3, characterized in that: The driving member (49) is an elastic member (493), and the elastic member (493) is connected to the top wall of the groove (413) and the top of the telescopic plate (412).

5. The slag separation and conveying device according to claim 1, characterized in that: A guide mechanism (5) is installed on the cinder channel (2), and the guide mechanism (5) comprises guide plates (51). The guide plates (51) are symmetrically distributed in pairs, and the two guide plates (51) are respectively placed on the two side walls of the cinder channel (2), and one end of each guide plate is hinged to the side wall of the cinder channel (2). The middle part of the guide plate (51) is elastically connected to the side wall of the cinder channel (2) through a spring (52).

6. A slag separation and conveying device according to claim 5, characterized in that: A pushing assembly (53) is installed at the top of the side wall of the cinder channel (2), and the pushing assembly (53) includes a pulley (531). The pulley (531) is provided with two pulleys and is rotatably connected to the top of the side wall of the cinder channel (2). The two pulleys (531) are driven by a transmission belt (532), one of the pulleys (531) is connected to a driving motor (533), and the driving motor (533) is electrically connected to a controller. A pushing rod (534) is fixedly connected to the wheel shaft of the pulley (531), and the pushing rod (534) contacts the guide plate (51) when rotating circumferentially.

7. A slag separation and conveying device according to claim 6, characterized in that: The free ends of the two guide plates (51) move towards each other under the push of the push rod (534), and the two guide plates (51) are arranged in an arc shape, and the distance between the two guide plates (51) gradually decreases along the conveying direction of the coal slag channel (2).

8. The slag separation and conveying device according to claim 7, characterized in that: A plurality of soft plastic sheets (535) are distributed in a row on one side of the two guide plates (51) that are close to each other.

9. The slag separation and conveying device according to claim 1, characterized in that: A dust collector (6) is installed on the coal storage channel (3), and a dust hood (7) is installed at the end of the dust collector (6). The dust hood (7) is arranged in a funnel shape, and the larger end of the two ends faces the coal storage channel (3).

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