Device for removing detonator leads from coal

Abstract

The present application is a device for removing detonator leads from coal, which is arranged at the outlet of a coal feeding device. The path through which the coal at the outlet of the coal feeding device passes is the coal conveying path. The device has a plurality of tines which can move in and out of the coal conveying path. When the tines are in the coal conveying path, they are perpendicular to the coal conveying path. The plurality of tines form a tine group, and there are a plurality of tine groups. A baffle plate is arranged, and the baffle plate has tine holes. The tines are arranged in the tine holes, and the baffle plate can move along the tine axis relative to the tines, so that the tines can extend out of the tine holes and retract into the tine holes. The tines are arranged in the coal conveying path, and the tines will hook the detonator leads mixed in the coal. By moving the baffle plate, a group of tines with more detonator leads hooked thereon can be moved to another position, the hooked detonator leads are removed, and the group of tines is replaced by another group of tines.

Description

TECHNICAL FIELD

[0001] The present application relates to a coal preparation plant. BACKGROUND

[0002] 1. In the process of coal mining, the blasting method is used for mining, and detonator and detonator lead are needed for blasting. There are many residual detonator leads in the process of raw coal mining and production, and the lengths of the residual detonator leads are different, and most of the lengths are 200-1000mm.

[0003] 2. The detonator lead uses double-core iron wire, but because the iron wire is thin (about 0.2 square millimeter) and the external insulation layer is 2.5 square millimeter, the residual detonator leads in the raw coal cannot be removed by the magnetic separator (a device for removing iron impurities in raw coal by using the principle of magnet), which causes the detonator leads to frequently block the production line in the production process and affect the normal production.

[0004] 3. In the process of coal washing, each coal is sorted according to its density, and the residual detonator leads are in the raw coal. After washing, most of the detonator leads are left in the clean coal because the density of the detonator leads is less than that of the gangue and medium coal.

[0005] 4. Most of the clean coal is used for steelmaking furnace combustion in the steel plant, and the coal injection system into the hearth is usually used for combustion. After the detonator leads are burned, the insulation layer of the detonator leads is melted, which easily blocks the nozzles, seriously affects the use of clean coal, and the steel plant needs to remove most of the detonator leads.

[0006] Therefore, it is necessary to remove the detonator leads on the clean coal production line.

[0007] Of course, the detonator leads in the above are not only the detonator leads, but also any soft impurities with a certain length in the coal, such as cloth strips, rattan strips, adhesive tapes, other wires, steel wire ropes, etc., but because the detonator leads appear the most (more than 90%), the soft impurities with a certain length are collectively referred to as detonator leads. SUMMARY

[0008] In order to solve the above technical problems, the present application provides a device for removing detonator leads in coal.

[0009] The device for removing detonator leads in coal of the present application is arranged at the outlet of the incoming device, and the path through which the coal at the outlet of the incoming device passes is the coal conveying path, and the coal conveying path is approximately vertical; wherein:

[0010] a plurality of rakes are arranged to be able to reciprocate in and out of the coal conveying path, and the rakes are perpendicular to the coal conveying path when the rakes are in the coal conveying path; the plurality of rakes form a rake group, and there are a plurality of rake groups.

[0011] The device for removing detonator leads from coal comprises a baffle plate which moves synchronously with the rake teeth when the rake teeth are in and out of the coal conveying path, and the baffle plate is provided with rake teeth holes which match the gaps between the rake teeth; the rake teeth are arranged in the rake teeth holes, and the baffle plate is movable relative to the rake teeth along the rake teeth axis direction so as to make the rake teeth extend out of and retract into the rake teeth holes.

[0012] The device for removing detonator leads from coal as described above, wherein the length of the rake teeth when extending out of the rake teeth holes is such that the rake teeth pass through the coal conveying path.

[0013] When the rake teeth retract into the rake teeth holes, the front ends of the rake teeth are completely retracted into the rake teeth holes.

[0014] The device for removing detonator leads from coal as described above, wherein the rake teeth are long strip-shaped bodies.

[0015] The rake teeth in one rake tooth group are fixed on the rake tooth fixing seat in two rows, and each row has 5-15 rake teeth.

[0016] The distance between the rake teeth in the rake tooth group is 100-200 mm, and the width of the rake teeth distribution is not less than the width of the coal conveying path.

[0017] The device for removing detonator leads from coal as described above, wherein the baffle plate is arranged at the edge of the coal conveying path and makes the coal convey along a fixed route.

[0018] The device for removing detonator leads from coal as described above, wherein a plurality of rake tooth groups are arranged side by side and alternately in and out of the coal conveying path.

[0019] The device for removing detonator leads from coal as described above, wherein the rake tooth groups are arranged on a movable frame, and the bottom of the frame is provided with a walking device which makes the frame walk in the horizontal direction.

[0020] The rake tooth groups are arranged on the movable frame, and the bottom of the frame is provided with a walking device which makes the frame walk in the horizontal direction.

[0021] The device for removing detonator leads from coal as described above, wherein the walking device is specifically a steel rail which is arranged horizontally below the frame and is perpendicular to the rake teeth, and a walking wheel is arranged at the bottom of the frame and walks on the steel rail.

[0022] The device for removing detonator leads from coal as described above, wherein a garbage collection box is arranged below the position where the rake teeth are when the rake teeth are out of the coal conveying path, and the axis direction of the rake teeth is the front-rear direction, and the horizontal direction perpendicular to the front-rear direction is the left-right direction; garbage collection boxes are arranged on the left and right sides of the coal conveying path.

[0023] The device for removing detonator leads from coal as described above, wherein the baffle plate is movable relative to the rake teeth along the rake teeth axis direction, and the baffle plate is movable relative to the rake teeth along the rake teeth axis direction.

[0024] The rake tooth rear end is fixed on the rake tooth fixing seat; the rake tooth fixing seat is movably arranged on the track parallel to the rake tooth.

[0025] The track and the baffle are fixed on the frame, and the driving device for driving the rake tooth fixing seat to walk on the track is arranged.

[0026] The device for removing the detonator lead in the coal as described above, wherein the driving device is one of an electric push rod, a hydraulic rod and an electric worm.

[0027] The rake tooth is arranged in the coal conveying path, and the rake tooth can hook the detonator lead mixed in the coal.

[0028] In addition, the rake tooth of the present application is arranged in groups and alternately appears in the coal conveying path; therefore, when the detonator lead is hung on one group of rake tooth, the group of rake tooth can be removed, and another group of rake tooth is moved to the coal conveying path to continue to hook the detonator lead mixed in the coal. The group of rake tooth with more detonator lead is moved to another place to clean the hooked detonator lead, and waits for the replacement of another group of rake tooth.

[0029] The present application can effectively remove 70%-90% of the detonator lead in the raw coal.

[0030] The present application adopts full automation (PLC program) to control the alternate action of the rake tooth group, and the action of cleaning the hooked detonator lead, without manual operation.

[0031] The device of the present application does not have high-power equipment, and the power consumption is small.

[0032] The present application is simple to install, and has small changes to the original equipment and site. It does not need to move other equipment of the coal washing plant, and does not need to change the coal washing process and transportation process. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the present application.

[0034] Figure 2 It is a perspective structural diagram of the present application.

[0035] Figure 3 It is a left view of the present application, mainly showing the spatial distribution of the frame, the steel rail, the walking wheel and the rake tooth.

[0036] Figure 4 It is a front view of the present application, mainly showing the planar distribution of the rake tooth, the rake tooth fixing seat, the baffle and the frame.

[0037] Among them:

[0038] The first group of tines 01, the second group of tines 02; coal conveying path 03; steel rail 1; rear bin wall 2; right bin wall 3; front bin wall 4; tine 5; hinge 6; baffle 7; tine fixing seat 8; walking wheel 9; frame 10; material collecting bin outlet 11; connecting rod 12; track 13; electric motor 14; raw coal conveying belt 21; electric push rod 22; garbage collecting bin 23. DETAILED DESCRIPTION

[0039] In the description of the present application, the words of orientation or positional relationship such as "up", "down", "left", "right", "front", "back" are used, and the use of such words of orientation or position is only for the convenience of describing the present application and simplifying the description in conjunction with the drawings of the present application, and does not indicate or imply that the parts referred to have a specific orientation or must be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0040] In the following examples, the orientation or positional relationship of "left", "right", "front", "back" is as follows: with the tine as the reference, the end of the tine fixed to the tine fixing seat is the back end, and the end opposite to the back end is the front end. In the horizontal direction, the two sides perpendicular to the tine are "left" and "right" respectively. When describing the structure of the remaining structure except the "material collecting bin", this orientation relationship is used for description; when describing the "material collecting bin", the orientation relationship of "front" and "back" is opposite to that of the remaining structure, mainly because the "front" and "back" directions are opposite, which is due to the use of different reference objects.

[0041] The device of the present application is installed on a coal preparation production line.

[0042] The device for removing detonator leads in coal of the present application is arranged at the outlet of the incoming material device, and the space of this section of the path through which the coal at the outlet of the incoming material device passes is the coal conveying path 03.

[0043] One example is that the coal conveying is carried out by the raw coal conveying belt 21. In this example, the outlet of the incoming material device is the discharge port of the raw coal conveying belt 21. The raw coal is loaded onto the conveying belt and transported, and then thrown out at the tail end of the conveying belt. In this example, the discharge port of the raw coal conveying belt 21 is regarded as the outlet of the incoming material device, and the raw coal is first thrown forward in an arc for a short distance, and then changes to vertical falling under the influence of gravity and the blocking of the baffle, so that the coal conveying path is roughly vertical, and the space through which the coal falls vertically is the coal conveying path 03. In this example, the coal forms a column-like shape with a width of about 700 mm and a thickness of about 300 mm in the falling path.

[0044] Of course, in addition to the raw coal conveying belt discharge port, another example is the discharge port of the raw coal screen, which can also be regarded as the coal falling part. Another example is the discharge port of the last clean coal outlet of the coal washing process, which can also be regarded as the outlet of the incoming device. Therefore, the outlet of the incoming device in the present application is not limited to the raw coal conveying belt discharge port. In the continuous transfer process on the production line, the position where the coal continuously falls in a free state is regarded as the coal falling part of the outlet of the incoming device, and the coal falling part generates a coal conveying path. The device of the present application can be installed in any coal conveying path according to the site conditions.

[0045] In one example, a plurality of tines 5 are arranged in the coal conveying path, which are used to hook the detonator lead in the coal when the coal falls, and hang on the tines. Therefore, the length of the tines protruding from the tine hole is enough to make the tines completely pass through the coal conveying path 03, so as to ensure that the coal conveying path is completely intercepted. The tine 5 is a long strip body, which can be a cylinder or a stick, or a square column, a flat steel, etc. In this example, the cylinder is preferred, the length of the tine is 300-400mm, if the tine is too long, the front end will hang out too much, which is not conducive to bearing the impact of falling coal, and if the tine is too short, a part of the detonator lead will fall from the front end. The diameter of the tine is 15-20mm. The front end of the tine points to the incoming direction of the raw coal conveying belt 21. The coal conveying path is the first direction (free falling, which can be regarded as the vertical direction), and the tines of the tine group in the coal conveying path are arranged in the second direction perpendicular to the first direction, that is, the tines are perpendicular to the coal conveying path, which can be horizontally placed in practice. Of course, the tines do not necessarily have to be horizontally placed to achieve the working effect, for example, the front end of the tine can be appropriately tilted upward, which can better hook the detonator lead.

[0046] The rear end of the tine is fixed on the tine fixing seat 8, and the tines in a tine group are fixed in two rows, each row has 5-15 tines. In one example, 12 tines are arranged on one tine fixing seat, of which 6 tines are arranged in the upper row and the lower row respectively. These tines are parallel to each other, and the front ends protrude by the same length. The tines in the upper row and the lower row are staggered. The distance between the tines in the tine group is 100-200mm, and the width of the tine distribution is not less than the width of the coal conveying path, so as to ensure that the coal conveying path is completely intercepted, and each detonator lead falling in the coal conveying path has the opportunity to be hung on one of the tines.

[0047] A baffle 7 is arranged, which moves synchronously with the tine group when the tine group is in and out of the coal conveying path. The baffle is arranged at the edge of the coal conveying path, specifically between the coal conveying path and the main device, which refers to the vehicle frame 10, the tine fixing seat 8, the walking device, the driving device, the steel rail 1, the track 13, etc.

[0048] The baffle 7 can make the coal transport along a predetermined route. In one example, the coal transport is carried out by a raw coal transport belt. The raw coal is first thrown forward in an arc for a short distance from the outlet of the raw coal transport belt, and then most of the coal falls vertically under the influence of gravity. The vertical falling section of the coal is regarded as a straight line, the arc-throwing section is regarded as an arc, and the connecting point of the straight line and the arc is regarded as a tangent point. That is, the point at which the raw coal changes from arc motion to straight line motion is regarded as the tangent point. The baffle is arranged at the tangent point, the front surface of the baffle faces the raw coal transport belt, the upper edge of the baffle is higher than the height at which the coal splashed from the belt can fly, and the lower edge of the baffle is at least lower than the lower edge of the fixed seat of the tines. The width of the baffle in the left-right direction is at least wider than the raw coal transport belt, so that the coal splashed from the belt and deviated from the coal transport path can be blocked and completely confined in the coal transport path, and the arc-throwing state of the coal is changed to a substantially vertical state. The main functions of the baffle are twofold. One is to change the arc-throwing state of the coal to a substantially vertical state, so that the coal must pass through the tines. The other is to prevent the splashed coal from jumping to the rear of the baffle and impacting various components on the vehicle frame (the baffle protects the vehicle frame, the fixed seat of the tines, the walking device, the driving device, etc.). Therefore, in one example, the height of the baffle is 400 mm, the width of the baffle is 1000 mm, and the upper edge of the baffle is substantially at the same horizontal position as the center axis of the tail drum of the raw coal transport belt.

[0049] A plurality of tine holes are arranged on the baffle, and one tine is arranged in each tine hole. The tine passes through the tine hole, the front end of the tine extends out of the tine hole, and the tine hole and the tine are in clearance fit. Preferably, the inner diameter of the tine hole is slightly larger than the outer diameter of the tine, so that the tine can move axially in the tine hole easily, and the part of the tine extending out of the tine hole is in the coal transport path. Therefore, the part of the tine extending out of the tine hole is used to hook the detonator lead in the coal.

[0050] The baffle is movable relative to the tines along the tine axis direction, so that the tines can extend out of and retract into the tine holes. To this end, the rear end of the tine is fixed on the tine fixed seat, and the fixed seat is fixed on the vehicle frame and does not move axially. The tail end of the electric push rod is fixed on the vehicle frame, and the rear of the baffle is fixed on the extendable front end of the electric push rod, so that the baffle moves forward and backward along the tine axis direction. When it is necessary to clean the detonator lead on the tine, the electric push rod pushes the baffle forward, and the tine remains stationary, so that the detonator lead on the tine is removed by the baffle. After the detonator lead is removed, the electric push rod pulls the baffle backward, and the tine is exposed to the tine hole and in place.

[0051] Another preferred solution for achieving the movement of the baffle relative to the rake along the rake axis direction, so that the rake extends out of and retracts into the rake hole, is that the rake 5 rear end is fixed on the rake fixing seat 8; the rake fixing seat 8 is movably arranged on the track 13 parallel to the rake, so that the rake fixing seat 8 is movable forward and backward and can drive the rake to move; the track 13 length is arranged between 300-400mm, corresponding to the rake length, the track and the baffle are fixed on the vehicle frame 10, and a driving device for driving the rake fixing seat to walk on the track is arranged. The driving device is one of an electric push rod, a hydraulic rod and an electric worm, and in this example, an electric push rod 22 is preferred. The tail end of the electric push rod is fixed on the vehicle frame, the retractable front end of the electric push rod 22 is fixed with the rake fixing seat, the movement direction of the retractable front end of the electric push rod is parallel to the track and parallel to the rake, and the stroke of the electric push rod is between 300-400mm, corresponding to the length of the track 13. When it is needed to clean the detonator lead on the rake, the electric push rod is actuated to pull the rake fixing seat to retreat, and the rake is retracted into the rake hole of the baffle, while the baffle remains stationary, so that the detonator lead on the rake is blocked by the baffle. When the rake is completely retracted into the rake hole, all the detonator leads on the rake are removed by the baffle. After the detonator leads are removed, the electric push rod pushes the rake forward to extend out of the rake hole and be in place.

[0052] Since the baffle needs to withstand the impact of falling coal for a long time on one hand, and the rake hole on the baffle corresponds to limiting the rake on the other hand, the thickness of the baffle is set to be more than 20mm. When the electric push rod drives the rake to retreat to the most rear end, the front end of the rake is completely retracted into the rake hole, but it is also necessary to ensure that the rake is not completely withdrawn from the rake hole. If the rake is completely withdrawn from the rake hole, it may not be able to be aligned with the rake hole when it is needed to be pushed forward again. Therefore, the maximum stroke of the electric push rod, the position of the baffle and the length of the rake need to be coordinated.

[0053] The rake is alternately in and out of the coal conveying path, and multiple rake groups can be arranged side by side and alternately in and out of the coal conveying path. In one solution, at least two groups of rakes are provided; the first group of rakes 01 and the second group of rakes 02, the two groups of rakes are alternately in the coal conveying path, when the first group of rakes is in the coal conveying path to clean the detonator leads in the coal, the second group waits for the replacement work, when the set time is reached (or the rake is full of detonator leads), the first group of rakes exits and goes to the set place to clean the detonator leads, and then the second group appears in the coal conveying path; and the first group of rakes that have cleaned the detonator leads is in the state of waiting for replacement work, so that the work is alternated and cleaned, and the detonator leads in the coal passing through the coal conveying path are continuously cleaned. The structure is as follows:

[0054] The first group of tines 01 and the second group of tines 02 are mounted on the same frame 10, and the walking wheels 9 are arranged below the frame, the walking wheels are mounted on the steel rails 1, the steel rails are arranged horizontally, and the mounting direction is perpendicular to the tines, that is, the axis of the tines is in the front-back direction, and the axis of the steel rails is in the left-right direction. Therefore, the frame can drive the first group of tines 01 and the second group of tines 02 to move left and right. Assuming that the first group of tines is on the left side and the second group of tines is on the right side. When the first group of tines moves to the right to the coal conveying path, and the corresponding second group of tines moves synchronously, it reaches the set cleaning site to clean the detonator leads, and a garbage collection box 23 is arranged below the cleaning site to collect the pulled detonator leads; similarly, when the first group of tines moves to the left, it reaches the set cleaning site to clean the detonator leads, and the corresponding second group of tines moves synchronously to the coal conveying path. The garbage collection box 23 is specifically arranged on the left side and the right side of the coal conveying path to collect the pulled detonator leads. When the first group of tines 01 is in the coal conveying path, a garbage collection box 23 is arranged below the second group of tines 02 at this time; when the second group of tines is in the coal conveying path, another garbage collection box 23 is arranged below the first group of tines at this time.

[0055] The front surface of the baffle is taken as a reference surface, the coal conveying path is in front of the baffle, and the tines are in front of the baffle when the tines are extended forward; the tine fixing seat, the track, and the electric push rod are all behind the baffle. The frame, the steel rails, and the walking wheels are also behind the baffle, and the frame, the walking wheels, and the steel rails are above the baffle. The frame includes a chassis and two boxes on the chassis, each box is used to mount a group of tines, and the group of tines includes the track, the electric push rod, the tine fixing seat, the tines, and the baffle. An electric motor 14 is arranged on the frame, the electric motor 14 outputs power to a speed reducer, the speed reducer is connected to the walking wheel shaft through a transmission belt to drive the walking wheels.

[0056] When the device works, the first group of tines is in the coal conveying path, and the tines are extended from the tine holes. The soft impurities contained in the falling coal are hung on the tines, and the coal in the form of powder, particles, or blocks can smoothly fall through the tines. When the tines are full of detonator leads (or when a set time is reached), the frame moves to the left, reaches the cleaning site, and the electric push rod of the first group of tines acts to clean the detonator leads into the garbage collection box. Then the electric push rod acts in the reverse direction to make the first group of tines in the standby state. At the same time when the first group of tines reaches the cleaning site, the second group of tines synchronously moves to the coal conveying path. When the second group of tines is full of detonator leads (or when a set time is reached), the frame moves to the right, reaches the cleaning site, and the electric push rod of the second group of tines acts to clean the detonator leads into the garbage collection box. Then the electric push rod acts in the reverse direction to make the second group of tines in the standby state. The above working state can be programmed and controlled by a PLC. A specific time is set, and when the time is reached, the electric motor drives the frame to start moving, and the electric push rod works accordingly.

[0057] The following is an example description of the auxiliary device "aggregate box":

[0058] In one example, an aggregate box is provided, which can be regarded as a funnel, fixed below the coal falling part, and the coal continuously falls in a free state into the aggregate box to prevent the coal from flying everywhere. The aggregate box is composed of four walls to form a quadrilateral box. The aggregate box has four walls in front, back, left and right, and is open at the top and bottom. The top is the aggregate box inlet, and the bottom is the aggregate box outlet 11. The front wall 4 is close to the raw coal conveying belt, the back wall 2 is away from the raw coal conveying belt, and the left and right walls 3 are the remaining walls.

[0059] The first group of tines or the second group of tines is actually in the aggregate box when it is in the coal conveying path. The aggregate box collects the coal and passes it through the tines. Since the tines need to move left and right and also need to extend into the cavity of the aggregate box, a notch is provided on each of the left and right walls of the aggregate box, and a notch is also provided on the back wall of the aggregate box. The notches on the left and right walls and the notch on the back wall are connected. When the tines move left and right, they move in and out of the cavity of the aggregate box through the notches on the left and right walls.

[0060] A switchable flap, also known as a door, is provided at the notches on the left and right walls. When the tines move into the cavity of the aggregate box, the flap is closed to prevent coal from flying outward through the notches on the left and right walls. When the tines need to move left and right, the flap is opened. The left and right flaps are installed at the notches through hinges 6 or hinges 6, and a connecting rod 12 is used to push the flap. The connecting rod is powered by a motor or an electric push rod.

[0061] The area and shape of the baffle are equivalent to the notches on the back wall. When the tines move into the cavity of the aggregate box, the baffle blocks the notches on the back wall, which can also prevent coal from flying outward.

[0062] The above is an example description, and many other structures can be designed based on this example.

Claims

1. A device for removing detonator leads from coal is provided at the outlet of the incoming device. The path through which the coal passes at the outlet of the incoming device is a coal conveying path, and the coal conveying path is substantially vertical. It is characterized by: The invention relates to a plurality of rake teeth which can be moved back and forth in and out of the coal conveying path. When the rake teeth are in the coal conveying path, they are perpendicular to the coal conveying path. The rear ends of the rake teeth are fixed to the rake tooth fixing seat. The plurality of rake teeth form a rake tooth group. The plurality of rake tooth groups are arranged side by side and alternately move in and out of the coal conveying path. Specifically, the rake tooth groups are arranged on the same movable frame, and the frame drives the rake tooth groups to move left and right. A baffle is provided which moves synchronously with the rake teeth when the rake teeth are in and out of the coal conveying path, and the baffle is provided with rake tooth holes which fit into the clearance of the rake teeth; the rake teeth are arranged in the rake tooth holes, and the baffle is movable relative to the rake teeth along the rake tooth axis direction, and a push rod is provided which pushes one of the baffle and the rake tooth fixing seat to move forward and backward, so that the rake teeth extend from and retract into the rake tooth holes; The baffle is arranged at the edge of the coal conveying path and enables the coal to be conveyed along a predetermined route. Specifically, it is arranged between the coal conveying path and the main device, which includes a frame, a rake tooth fixing seat, and a push rod; An aggregate box is provided, into which coal falls, the aggregate box having an inlet and an outlet at the top and bottom, and a front box wall, a rear box wall, a left box wall, and a right box wall; A notch is provided on each of the left box wall, the right box wall and the rear box wall, and the notches are interconnected. When the rake teeth move left and right, they move in and out of the cavity of the aggregate box through the notches on the left and right box walls. The gaps on the left and right box walls are equipped with openable flaps to prevent coal from splashing outwards from the gaps on the left and right box walls. The area and shape of the baffle correspond to the gap in the rear box wall. When the rake teeth move into the cavity of the aggregate box, the baffle just blocks the gap in the rear box wall.

2. The device for removing detonator fuses from coal according to claim 1, characterized in that: The rake teeth are extended and retracted from the rake tooth holes, specifically, the length of the rake teeth when extended from the rake tooth holes is such that the rake teeth pass through the coal conveying path; When the rake teeth are retracted from the rake tooth holes, the front ends of the rake teeth are completely retracted into the rake tooth holes.

3. The device for removing detonator fuses from coal according to claim 1, characterized in that: The rake teeth are long strips. The rake teeth in a rake tooth group are fixed on the rake tooth fixing seat in two rows, each row has 5-15 rake teeth. The spacing between the teeth in the tooth group is 100-200mm, and the width of the tooth distribution is not less than the width of the coal conveying path.

4. The device for removing detonator fuses from coal according to claim 1, characterized in that: A running device is installed at the bottom of the frame to enable the frame to run in a horizontal direction.

5. The device for removing detonator fuses from coal according to claim 4, characterized in that: The walking device is specifically as follows: horizontally laid rails are arranged under the frame, the laying direction of the rails is perpendicular to the rake teeth, and running wheels are arranged at the bottom of the frame, and the running wheels run on the rails.

6. The device for removing detonator fuses from coal according to claim 1, characterized in that: A garbage collection box is provided below the position where the rake teeth leave the coal conveying path. Specifically, the axis direction of the rake teeth is the front-rear direction, and the direction in the horizontal plane and perpendicular to the front-rear direction is the left-right direction; garbage collection boxes are provided on the left and right sides of the coal conveying path.

7. The device for removing detonator fuses from coal according to claim 1, characterized in that: The baffle can move relative to the rake teeth along the rake tooth axis, specifically: The rake tooth fixing seat is movably arranged on a track parallel to the rake teeth; the track and the baffle are fixed on the vehicle frame.

8. The device for removing detonator fuses from coal according to claim 7, characterized in that: The push rod is one of an electric push rod, a hydraulic rod and an electric worm gear.

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