A device for clearing and preventing coal drop pipe

Abstract

The present invention discloses a device for clearing and preventing coal drop pipes, and relates to the technical field of coal transportation in power plants; it comprises a connection unit, comprising a fixed top frame and a swing frame symmetrically installed at the bottom thereof; the fixed top frame is fixed at the coal drop opening of the coal drop pipe; a driving unit, comprising a motor and a toggle rod, the motor is symmetrically fixed on the outer wall of the coal drop pipe, one end of the toggle rod is connected to the motor output shaft, and the other end is connected to the swing frame, and; a clearing unit, comprising a coal plate and a top coal piece, the coal plate is arranged between the swing frames and connected to the toggle rod, and the top coal piece is movably installed at the bottom of the swing frame. The present invention solves the problem that the existing inverted Y-shaped coal drop pipe is prone to blockage when the coal humidity is too high or the particle size is uneven.

Description

Technical Field

[0001] The invention relates to the technical field of coal transportation in power plants, and in particular to a coal drop pipe dredging and anti-blocking device. Background Art

[0002] The inverted Y-shaped coal drop pipe is a coal industry equipment used to evenly distribute coal from high places to low places to prevent concentrated impact and equipment wear. Its structure includes a top feed port, a diverter and two bottom outlets. Coal enters the coal drop pipe through the feed port and is evenly distributed to two outlets by the diverter before falling. The diverter is adjustable to control the coal flow ratio. The equipment effectively reduces the impact and wear on the equipment below by slowing down the falling speed of coal. It is widely used in coal mines, coal washing plants, power plants and other places, improving the efficiency and safety of coal transportation systems.

[0003] The existing coal drop pipes of this type are prone to blockage in the following situations: 1. When the humidity of the coal is too high, the wet coal is easy to adhere to the pipe wall, gradually accumulate and cause blockage; 2. The coal particles are uneven in size, and large particles may get stuck in the diverter or outlet, hindering the coal flow; 3. Foreign objects such as stones and wood blocks are mixed in, which get stuck in the pipe and cause blockage. Summary of the invention

[0004] In view of the problem that the existing inverted Y-shaped coal chute is prone to blockage when the coal humidity is too high or the particle size is uneven, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a coal pipe unblocking and anti-blocking device, the function of which is to disturb the large particles of coal in the blocking area in the pipe, improve the fluidity of coal in the pipeline, and reduce the probability of blockage.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: a coal drop pipe unblocking and anti-blocking device, which includes a connecting unit, including a fixed top frame and a swing frame symmetrically installed at the bottom thereof; a driving unit, including a motor and a toggle rod, the motor is symmetrically fixed on the outer wall of the coal drop pipe, one end of the toggle rod is connected to the motor output shaft, and the other end is connected to the swing frame, and; a unblocking unit, including a coal shifting plate and a coal top piece, the coal shifting plate is arranged between the swing frames and connected to the toggle rod, and the coal top piece is movably installed at the bottom of the swing frame; a coal drop unit, including a coal drop pipe and a diverter pipe obliquely symmetrically fixed at the bottom thereof, the diverter pipe is connected to the coal drop pipe, and the fixed top frame is fixed at the coal drop opening at the top of the coal drop pipe.

[0007] As a preferred solution of the coal drop pipe clearing and anti-blocking device of the present invention, the swing frame includes a straight groove rod and a limit rod fixedly connected to the bottom end thereof, the top side wall of the straight groove rod is provided with a hinged hole, and a sliding hole is also provided inside thereof; the two side walls of the straight groove rod are also symmetrically provided with protective plates, an arc plate is fixed on the straight groove rod at the top of the sliding hole, an inclined side plate is fixed on the top of the protective plate, and the inclined side plate is staggered with the arc plate to form an anti-collision groove.

[0008] As a preferred solution of the coal drop pipe unblocking and anti-blocking device of the present invention, wherein: a rotary slide groove is opened in the middle of the limit rod, and the top of the rotary slide groove is connected with the sliding hole; a first slide rod is fixed to the inner wall of the bottom of the rotary slide groove, and a first spring is connected to the outer surface of the first slide rod; an outward expansion plate is vertically fixed to one side of the arc plate at the bottom end of the limit rod, and a mounting plate is also vertically fixed to the bottom of the other end of the outward expansion plate.

[0009] As a preferred solution of the coal pipe unblocking and anti-blocking device of the present invention, wherein: the coal shifting plate includes a stabilizing frame, a movable rod and an embedded sliding push piece, and a first shifting plate and a second shifting plate hinged between the stabilizing frame and the movable rod; the stabilizing frame includes a main board and an outer convex plate connected at both ends thereof, and hinged rods are symmetrically connected between the outer convex plates at both ends, and a push rod is rotatably sleeved on the hinged rod; a sliding cover plate is fixed to the outer wall of the outer convex plate on the side away from the stabilizing frame, and the sliding cover plate is movably inserted into the rotary slide groove and fixedly sleeved on the top of the first slide rod; the movable rod includes a center rod and docking plates symmetrically fixed at both ends thereof.

[0010] As a preferred solution of the coal pipe unblocking and anti-blocking device of the present invention, the embedded sliding member includes a vertically symmetrical vertical plate and a concave arc plate and a sleeve plate connecting the top and bottom thereof, the sleeve plate is slidably sleeved outside the first sliding rod and connected to the first spring; a rotating ring and a docking ear are fixed on the same side of the concave arc plate and the sleeve plate, the arc surface axis of the concave arc plate coincides with the axis of the rotating ring, and a disc is also sealed and fixed at the end of the rotating ring away from the vertical plate, and the disc is detachably connected to the docking plate; an adapting slide groove is formed between the vertical plates, the sliding cover plate slides in the adapting slide groove, and the vertical plate slides in the rotary slide groove.

[0011] As a preferred solution of the coal drop pipe unblocking and anti-blocking device of the present invention, wherein: the first shift plate includes a first primary screen plate and a first rotating ring symmetrically fixed on one side thereof, the second shift plate includes a second primary screen plate and a second rotating ring fixed on one side thereof, the first rotating ring and the second rotating ring are both rotatably sleeved outside the center rod; the first primary screen plate and the second primary screen plate are both provided with at least one group of through holes, and connecting vertical plates are symmetrically fixed at the bottom of the two sides away from the center rod, connecting columns are fixed between the connecting vertical plates, and the other end of the push rod is rotatably sleeved outside the connecting columns.

[0012] As a preferred solution of the coal drop pipe unblocking and anti-blocking device of the present invention, wherein: the coal top piece includes a fixed top piece and a movable elastic piece slidably connected inside it; the fixed top piece includes a transverse plate and lower plug-in columns symmetrically fixed at the bottom thereof, a transverse pushing platform is also fixedly connected between the bottom ends of the lower plug-in columns, a second sliding column is symmetrically fixed between the transverse plate and the transverse pushing platform, and a second spring is connected to the outer sleeve of the second sliding column; disassembly and assembly plates are also fixed at both ends of the transverse plate, and the disassembly and assembly plates are detachably connected to the docking ears.

[0013] As a preferred scheme of the coal pipe unblocking and anti-blocking device of the present invention, wherein: the movable elastic part includes a center plate and a first push plate symmetrically fixed on both sides thereof, and stabilizing clips are also fixed at both ends of the center plate; a sliding slot is opened on the inner wall of the lower plug column, and the stabilizing clip is slidably inserted into the sliding slot, and the center plate is slidably sleeved on the outside of the second sliding column, and the two ends of the second spring are respectively fixed to the transverse plate and the center plate; second push plates are also symmetrically fixed to the two side walls of the lower plug column, and extrusion plates are also symmetrically fixed to the two sides of the center plate at the bottom of the first push plate; a blocking platform is also detachably connected between the mounting plates on both sides, a lower embedding hole is opened in the middle of the blocking platform, the lower plug column slides through the lower embedding hole, and the extrusion plate contacts and abuts against the top of the blocking platform.

[0014] As a preferred solution of the coal drop pipe unblocking and anti-blocking device of the present invention, the fixed top frame includes a top fixed frame and a crossbeam symmetrically connected to its inner wall, the top fixed frame is cooperated and fixed at the coal drop port at the top of the coal drop pipe, a load-bearing plate is also fixed to the bottom end of the crossbeam, a load-bearing column is also fixed to the outer wall of the load-bearing plate, and the load-bearing column is rotatably inserted into the hinged hole.

[0015] As a preferred solution of the coal drop pipe unblocking and anti-blocking device of the present invention, the toggle rod includes a toggle plate and a connecting shaft and a push slide column fixed at both side ends thereof, the connecting shaft is fixed to the motor output shaft, the push slide column is slidably inserted into the sliding hole, and rotatably inserted into the rotating ring.

[0016] Beneficial effects of the present invention:

[0017] The device drives the toggle rod to rotate through a motor, so that the toggle rod drives the swing frame to swing left and right in the coal drop pipe, which can increase the fluidity of coal blocks inside the coal drop pipe and reduce the risk of blockage.

[0018] And during the swinging process of the swing frame, its top coal shifting plate can realize the diversion function, controlling the discharge amount of coal blocks from the left and right coal drop pipes to be consistent, which is convenient for monitoring the coal flow ratio. During the swinging process, the top coal piece can push the downstream coal pit to discharge, further reducing the risk of blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 It is a schematic diagram of the application scenario of the coal drop pipe dredging and anti-blocking device of the present invention.

[0021] Figure 2 It is a schematic diagram of the installation of the coal drop pipe dredging and anti-blocking device of the present invention.

[0022] Figure 3 It is a structural schematic diagram of the coal drop pipe dredging and anti-blocking device of the present invention.

[0023] Figure 4 It is an action cycle diagram of the coal drop pipe dredging and anti-blocking device of the present invention.

[0024] Figure 5 It is a schematic diagram of the swing frame structure of the coal drop pipe dredging and anti-blocking device of the present invention.

[0025] Figure 6 It is a structural schematic diagram of the coal shifting plate of the coal drop pipe dredging and anti-blocking device of the present invention.

[0026] Figure 7 This is a schematic diagram of the installation of the coal shifting plate of the coal drop pipe dredging and anti-blocking device of the present invention.

[0027] Figure 8 It is a schematic diagram of the structure of the top coal component of the coal drop pipe dredging and anti-blocking device of the present invention.

[0028] Fig. 9 It is a schematic diagram of the structure of the connection unit of the coal drop pipe dredging and anti-blocking device of the present invention. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0032] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0033] Example 1

[0034] Reference Figure 1 to Figure 4 , which is the first embodiment of the present invention, provides a coal drop pipe dredging and anti-blocking device, which includes a connecting unit 100, including a fixed top frame 101 and a swing frame 102 symmetrically installed at the bottom thereof.

[0035] The driving unit 200 includes a motor 201 and a toggle rod 202 . The motor 201 is symmetrically fixed to the outer wall of the coal dropping pipe. One end of the toggle rod 202 is connected to the output shaft of the motor 201 , and the other end is connected to the swing frame 102 .

[0036] The dredging unit 300 includes a coal shifting plate 301 and a coal pushing piece 302 . The coal shifting plate 301 is disposed between the swing frames 102 and connected to the shifting rod 202 . The coal pushing piece 302 is movably mounted at the bottom end of the swing frame 102 .

[0037] The coal dropping unit 400 includes a coal dropping pipe 401 and a diverter pipe 402 obliquely and symmetrically fixed at the bottom thereof. The diverter pipe 402 is connected to the coal dropping pipe 401 . The fixed top frame 101 is fixed at the coal dropping opening at the top of the coal dropping pipe 401 .

[0038] The fixed top frame 101 is fastened to the top entrance of the coal dropping pipe 401 by bolts, and the swing frame 102 is symmetrically installed at its bottom and close to the side wall of the coal dropping pipe 401 to prevent it from being too close to the middle of the coal dropping pipe 401 and affecting the coal dropping efficiency.

[0039] Furthermore, the swing frame 102 can swing left and right, stirring alternately in the two coal outlet pipes, and simultaneously clearing the coal blocks on both sides, thereby improving the clearing efficiency.

[0040] Among them, the motor 201 adopts a servo motor with large power and torque, which can provide high-precision control and fast dynamic response capabilities.

[0041] Furthermore, the motor 201 is externally connected to a control unit, which can control the motor 201 to rotate in one direction or alternately in forward and reverse directions, so as to facilitate manual or intelligent control of the dredging work of the dredging unit 300.

[0042] The two ends of the coal shifting plate 301 are fixed to the swing frames 102 on both sides. The coal shifting plate 301 is preferably provided with two pieces, which can be flexibly folded to assist in turning over the coal blocks in the coal dropping pipe 401 and improve the fluidity of the coal blocks.

[0043] Furthermore, the coal-top piece 302 is disposed at the bottom of the swing frame 102 and can move up and down following the swing of the swing frame 102 , and push the coal blocks in the diversion pipes 402 on both sides during the movement, so that the coal blocks can be discharged from the diversion pipes 402 more quickly.

[0044] Reference Figure 4 During use, the motor 201 is started and controlled by the toggle rod 202. The swing frame 102 will swing left and right. The toggle rod 202 drives the coal-shifting plate 301 to flip up and down inside the coal-dropping pipe 401. When the angle between the coal-shifting plates 301 decreases, the coal blocks that are too large will be crushed. When the coal-shifting plates 301 swing to the left, most of the coal blocks can be discharged from the right diversion pipe 402. Conversely, the coal blocks are discharged from the left diversion pipe 402, thereby realizing the diversion of coal blocks and reducing the probability of blockage without affecting the coal transportation efficiency.

[0045] Furthermore, when the coal shifting plate 301 swings to the left, the coal intake into the left diverter pipe 402 is small, and the coal-lifting member 302 moves to push the internal coal blocks, thereby improving the coal discharge efficiency in terms of "reducing the amount of coal intake" and "increasing the coal discharge speed" and reducing the probability of blockage.

[0046] Furthermore, when the top coal piece 302 swings left and right, it can hit the top inner wall of the diverter pipe 402 on both sides, causing vibration, and shaking off the coal slag attached to the inner wall of the diverter pipe 402, thereby ensuring the cleanliness of the pipe.

[0047] Example 2

[0048] Reference Figures 1 to 9 , which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the swing frame 102 includes a straight groove rod 102a and a limit rod 102b fixedly connected to its bottom end, and the top side wall of the straight groove rod 102a is provided with a hinged hole 102a-1, and a sliding hole 102a-2 is also provided therein.

[0049] During use, the swing frame 102 swings around the reaming hole 102a-1, and its overall length is manufactured according to actual conditions.

[0050] Protective plates 102a-3 are symmetrically provided on both side walls of the straight groove rod 102a, an arc plate 102a-4 is fixed to the straight groove rod 102a at the top of the sliding hole 102a-2, and an inclined side plate 102a-5 is fixed to the top of the protective plate 102a-3. The inclined side plate 102a-5 is offset from the arc plate 102a-4 to form an anti-collision groove 102a-5a.

[0051] Among them, the protective plate 102a-3 can prevent excessive coal slag from falling between the swing frame 102 and the inner wall of the coal drop pipe 401, hindering the movement of the swing frame 102. The arc plate 102a-4 and the inclined side plate 102a-5 protect the output shaft and the toggle rod 202 of the motor 201 from above, preventing coal blocks from frequently hitting the toggle rod 202 and affecting its service life.

[0052] A rotary slide groove 102b-1 is opened in the middle of the limiting rod 102b, and the top of the rotary slide groove 102b-1 is connected to the sliding hole 102a-2; a first slide rod 102b-1a is fixed to the inner wall of the bottom of the rotary slide groove 102b-1, and a first spring T1 is connected to the outer sleeve of the first slide rod 102b-1a.

[0053] An outward expansion plate 102b-2 is vertically fixed to the bottom end of the limiting rod 102b, close to one side of the arc plate 102a-4, and a mounting plate 102b-2a is also vertically fixed to the bottom of the other end of the outward expansion plate 102b-2. The mounting plate 102b-2a is close to the inner wall of the coal drop pipe 401. As the swing frame 102 swings, the bottom end of the limiting rod 102b pushes the coal slag inside the coal drop pipe 401 and pushes it to both sides into the diversion pipe 402.

[0054] The coal shifting plate 301 includes a stabilizing frame 301a, a movable rod 301b and an embedded sliding member 301c, as well as a first shifting plate 301d and a second shifting plate 301e hinged between the stabilizing frame 301a and the movable rod 301b; the stabilizing frame 301a includes a main board 301a-1 and outer convex plates 301a-2 connected at both ends thereof, and hinged rods 301a-3 are symmetrically connected between the outer convex plates 301a-2 at both ends, and a push rod 301a-4 is rotatably sleeved on the hinged rod 301a-3.

[0055] A sliding cover plate 301a-2a is also fixed to the outer wall of the outer convex plate 301a-2 away from the stabilizing frame 301a. The sliding cover plate 301a-2a is movably inserted into the rotating slide groove 102b-1 and fixedly sleeved on the top of the first slide bar 102b-1a; the sliding cover plate 301a-2a is fixed to the top of the first slide bar 102b-1a by bolts to fix its horizontal position.

[0056] The movable rod 301b includes a central rod 301b-1 and docking plates 301b-2 symmetrically fixed at both ends thereof.

[0057] The embedded sliding member 301c includes a vertically symmetrical vertical plate 301c-1 and an inner concave arc plate 301c-2 and a sleeve plate 301c-3 connecting the top and bottom thereof. The sleeve plate 301c-3 is slidably sleeved outside the first sliding rod 102b-1a and connected to the first spring T1.

[0058] A rotating ring 301c-2a and a docking ear 301c-3a are fixed on the same side of the concave arc plate 301c-2 and the sleeve plate 301c-3 respectively. The axis of the arc surface of the concave arc plate 301c-2 coincides with the axis of the rotating ring 301c-2a. A disc 301c-2b is also sealed and fixed on the end of the rotating ring 301c-2a away from the vertical plate 301c-1. The disc 301c-2b is detachably connected to the docking plate 301b-2.

[0059] An adapting slide groove 301c-1a is formed between the vertical plates 301c-1, the sliding cover plate 301a-2a slides in the adapting slide groove 301c-1a, and the vertical plates 301c-1 cooperate to slide in the rotary slide groove 102b-1.

[0060] During use, as the swing frame 102 swings left and right, the rotating ring 301c-2a rotates and sleeves on the end of the toggle rod 202. At this time, the movable rod 301b fixedly connected to the rotating ring 301c-2a floats up and down with the toggle rod 202.

[0061] Reference Figure 4 Further, as the toggle rod 202 rotates to the highest position, the angle α between the first toggle plate 301d and the lower part of the second toggle plate 301e is an obtuse angle. When the toggle rod 202 rotates further, the height decreases and the angle α increases until the toggle rod 202 rotates to the lowest position, at which time the angle α is a straight angle.

[0062] Furthermore, as the first shift plate 301d and the second shift plate 301e move from top to bottom, an umbrella-like structure is formed underneath them, which can push the coal blocks in the coal drop pipe 401 downward. As the first shift plate 301d and the second shift plate 301e move upward again, the tops of the two form a pointed cone shape, which reduces the upward resistance and prevents too many coal blocks from being lifted up and falling again. As the angle α between the first shift plate 301d and the second shift plate 301e decreases, the coal blocks that are stuck together can be crushed.

[0063] It should be noted that, as the swing frame 102 moves, the embedded sliding member 301c moves synchronously in the adapter slide groove 301c-1a, and when the sleeve plate 301c-3 moves to the highest position, it contacts the bottom end of the outer convex plate 301a-2.

[0064] The first shift plate 301d includes a first primary screening plate 301d-1 and a first rotating ring 301d-2 symmetrically fixed on one side thereof, and the second shift plate 301e includes a second primary screening plate 301e-1 and a second rotating ring 301e-2 fixed on one side thereof, and the first rotating ring 301d-2 and the second rotating ring 301e-2 are both rotatably sleeved onto the outside of the central rod 301b-1.

[0065] Both the first primary screening plate 301d-1 and the second primary screening plate 301e-1 are provided with at least one group of through holes 301d-1a, and connecting vertical plates 301b-1b are symmetrically fixed to the bottom of the two plates away from the central rod 301b-1, connecting columns 301b-1c are fixed between the connecting vertical plates 301b-1b, and the other end of the push rod 301a-4 is rotatably sleeved outside the connecting column 301b-1c.

[0066] Among them, the first primary screening plate 301d-1 and the second primary screening plate 301e-1 adjust the included angle around the central rod 301b-1, and the other end is connected to the push rod 301a-4 to ensure that the first primary screening plate 301d-1 and the second primary screening plate 301e-1 can move regularly.

[0067] Furthermore, the perforations 301d-1a can screen coal pieces with smaller particle sizes and make them fall naturally, thereby ensuring that the discharge of coal pieces is not completely blocked while the discharge volume is controlled.

[0068] The remaining structures are the same as those of Example 1.

[0069] Example 3

[0070] Reference Figures 1 to 9 , which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the coal top member 302 includes a fixed top member 302a and a movable elastic member 302b slidably connected inside it; the fixed top member 302a includes a transverse plate 302a-1 and lower plug columns 302a-2 symmetrically fixed at the bottom thereof, and a transverse push platform 302a-3 is also fixedly connected between the bottom ends of the lower plug columns 302a-2, and a second sliding column 302a-3a is symmetrically fixed between the transverse plate 302a-1 and the transverse push platform 302a-3, and a second spring T2 is connected to the outer sleeve of the second sliding column 302a-3a.

[0071] Disassembly plates 302a-1a are fixed at both ends of the transverse plate 302a-1, and the disassembly plates 302a-1a are detachably connected to the docking ears 301c-3a.

[0072] During use, since the disassembly and assembly plate 302a-1a is fixed to the docking ear 301c-3a, the fixed top member 302a can move up and down following the embedded sliding member 301c.

[0073] The movable elastic member 302b includes a central plate 302b-1 and first push plates 302b-2 symmetrically fixed on two sides thereof. Stabilizing clamps 302b-1a are also fixed at both ends of the central plate 302b-1.

[0074] A sliding slot 302a-2a is provided on the inner wall of the lower plug column 302a-2, and the stabilizing clamp 302b-1a is slidably inserted into the sliding slot 302a-2a. The center plate 302b-1 is slidably sleeved on the outside of the second slide column 302a-3a, and the two ends of the second spring T2 are respectively fixed to the transverse plate 302a-1 and the center plate 302b-1.

[0075] During use, when the movable spring 302b is not subjected to external force, the second spring T2 pushes it downward, the center plate 302b-1 abuts against the horizontal push platform 302a-3, and the movable spring 302b as a whole can only slide upward.

[0076] Second push plates 302a-2b are symmetrically fixed to both side walls of the lower plug column 302a-2, and extrusion plates 302b-2a are symmetrically fixed to both sides of the central plate 302b-1 at the bottom of the first push plate 302b-2.

[0077] Among them, the first push plate 302b-2 is always located below the second push plate 302a-2b. When the first push plate 302b-2 moves upward, the coal blocks between the first push plate 302b-2 and the second push plate 302a-2b are not squeezed and damaged, and are discharged from the diversion pipe 402.

[0078] Furthermore, as the swing frame 102 swings, the ends of the first push plate 302b-2 and the second push plate 302a-2b can hit the inner wall of the diversion pipe 402 to shake off the coal slag.

[0079] A blocking platform 102c is detachably connected between the mounting plates 102b-2a on both sides. A lower embedding hole 102c-1 is opened in the middle of the blocking platform 102c. The lower plug column 302a-2 slides through the lower embedding hole 102c-1, and the extrusion plate 302b-2a contacts and abuts against the top of the blocking platform 102c.

[0080] During use, the fixed top piece 302a moves up and down with the embedded sliding piece 301c. When the toggle rod 202 rotates to the lowest point, the lower plug 302a-2 is inserted into the lower embedded hole 102c-1. At this time, the squeezing plate 302b-2a is squeezed with the blocking platform 102c, that is, the movable spring 302b moves up, and the first push plate 302b-2 and the second push plate 302a-2b crush the coal blocks.

[0081] The fixed top frame 101 includes a top fixed frame 101a and a crossbeam 101b symmetrically connected to its inner wall. A load-bearing plate 101c is fixed to the bottom end of the crossbeam 101b. A load-bearing column 101c-1 is fixed to the outer wall of the load-bearing plate 101c. The load-bearing column 101c-1 is rotatably inserted into the hinged hole 102a-1.

[0082] Among them, the top fixed frame 101a can be rectangular or annular, and is made specifically according to the shape of the coal drop pipe 401. The crossbeam 101b extends slightly toward the middle of the coal drop pipe 401, and the load-bearing plate 101c is inserted downward into the coal drop pipe 401 to facilitate the swing frame 102 to work in the center area of ​​the coal drop pipe 401.

[0083] The toggle rod 202 includes a toggle plate 202a and a connecting shaft 202b and a push slide 202c fixed at both ends thereof. The connecting shaft 202b is fixed to the output shaft of the motor 201, and the push slide 202c is slidably inserted into the sliding hole 102a-2 and rotatably inserted into the rotating ring 301c-2a.

[0084] Among them, the toggle rod 202 is a "Z" bent rod as a whole. When the motor 201 drives the connecting shaft 202b to rotate, the toggle plate 202a drives the push slide 202c to move in the sliding hole 102a-2. At this time, the overall height of the push slide 202c depends on the rotation angle of the motor 201, that is, the embedded sliding member 301c and the movable rod 301b can maintain the same height with the push slide 202c through the rotating ring 301c-2a.

[0085] The remaining structure is the same as that of Example 2.

[0086] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A device for clearing and preventing blocking of a coal drop pipe, characterized in that: include, The connecting unit (100) comprises a fixed top frame (101) and a swing frame (102) symmetrically mounted on the bottom thereof; A driving unit (200) comprises a motor (201) and a toggle rod (202), wherein the motor (201) is symmetrically fixed to the outer wall of the coal drop pipe, one end of the toggle rod (202) is connected to the output shaft of the motor (201), and the other end is connected to the swing frame (102); and; The dredging unit (300) comprises a coal shifting plate (301) and a coal pushing piece (302), wherein the coal shifting plate (301) is arranged between the swing frames (102) and connected to the shifting rod (202), and the coal pushing piece (302) is movably mounted on the bottom end of the swing frame (102); The coal dropping unit (400) comprises a coal dropping pipe (401) and a diverter pipe (402) fixed at the bottom thereof in an oblique and symmetrical manner, wherein the diverter pipe (402) is connected to the coal dropping pipe (401), and the fixed top frame (101) is fixed at the coal dropping opening at the top of the coal dropping pipe (401); The swing frame (102) comprises a straight groove rod (102a) and a limit rod (102b) fixedly connected to the bottom end thereof; a hinged hole (102a-1) is provided on the top side wall of the straight groove rod (102a), and a sliding hole (102a-2) is also provided inside the straight groove rod (102a); The two side walls of the straight groove rod (102a) are symmetrically provided with protective plates (102a-3); an arc-shaped plate (102a-4) is fixed to the straight groove rod (102a) at the top of the sliding hole (102a-2); an inclined side plate (102a-5) is fixed to the top of the protective plate (102a-3); the inclined side plate (102a-5) and the arc-shaped plate (102a-4) are offset to form an anti-collision groove (102a-5a); A rotary slide groove (102b-1) is provided in the middle of the limiting rod (102b), and the top of the rotary slide groove (102b-1) is connected to the sliding hole (102a-2); A first sliding rod (102b-1a) is fixed to the inner wall of the bottom of the rotary sliding groove (102b-1), and a first spring (T1) is connected to the outer shell of the first sliding rod (102b-1a); An outward expansion plate (102b-2) is vertically fixed to one side of the bottom end of the limiting rod (102b) close to the arc-shaped plate (102a-4), and a mounting plate (102b-2a) is also vertically fixed to the bottom of the other end of the outward expansion plate (102b-2); The coal shifting plate (301) comprises a stabilizing frame (301a), a movable rod (301b), an embedded sliding member (301c), and a first shifting plate (301d) and a second shifting plate (301e) hinged between the stabilizing frame (301a) and the movable rod (301b); The stabilizing frame (301a) comprises a main board (301a-1) and outer convex plates (301a-2) connected at two ends thereof, and hinged rods (301a-3) are symmetrically connected between the outer convex plates (301a-2) at the two ends, and a push rod (301a-4) is rotatably sleeved on the hinged rod (301a-3); A sliding cover plate (301a-2a) is also fixed to the outer wall of the outer convex plate (301a-2) on the side away from the stabilizing frame (301a); the sliding cover plate (301a-2a) is movably inserted into the rotary slide groove (102b-1) and fixedly sleeved on the top of the first slide rod (102b-1a); The movable rod (301b) comprises a central rod (301b-1) and docking plates (301b-2) symmetrically fixed at two ends thereof; The embedded sliding member (301c) comprises a vertically symmetrically arranged vertical plate (301c-1), an inner concave arc plate (301c-2) and a sleeve plate (301c-3) connecting the top and bottom thereof, wherein the sleeve plate (301c-3) is slidably sleeved outside the first sliding rod (102b-1a) and connected to the first spring (T1); A rotating collar (301c-2a) and a docking ear (301c-3a) are respectively fixed on the same side of the inner concave arc plate (301c-2) and the sleeve plate (301c-3); the arc surface axis of the inner concave arc plate (301c-2) coincides with the axis of the rotating collar (301c-2a); a disc (301c-2b) is also sealed and fixed to one end of the rotating collar (301c-2a) away from the vertical plate (301c-1); the disc (301c-2b) is detachably connected to the docking disc (301b-2); An adapting slide groove (301c-1a) is formed between the vertical plates (301c-1), the sliding cover plate (301a-2a) slides in the adapting slide groove (301c-1a), and the vertical plates (301c-1) slide in the rotating slide groove (102b-1); The first shift plate (301d) comprises a first primary screening plate (301d-1) and a first rotating sleeve (301d-2) symmetrically fixed on one side thereof, and the second shift plate (301e) comprises a second primary screening plate (301e-1) and a second rotating sleeve (301e-2) fixed on one side thereof, and the first rotating sleeve (301d-2) and the second rotating sleeve (301e-2) are both rotatably sleeved outside the central rod (301b-1); The first primary screening plate (301d-1) and the second primary screening plate (301e-1) are both provided with at least one group of through holes (301d-1a), and connecting vertical plates (301b-1b) are symmetrically fixed to the bottom of the two plates on the side away from the central rod (301b-1), connecting columns (301b-1c) are fixed between the connecting vertical plates (301b-1b), and the other end of the push rod (301a-4) is rotatably sleeved outside the connecting column (301b-1c); The coal top member (302) comprises a fixed top member (302a) and a movable elastic member (302b) slidably connected inside the fixed top member (302a); The fixed top member (302a) comprises a transverse plate (302a-1) and lower plug-in columns (302a-2) symmetrically fixed at the bottom thereof, a transverse push platform (302a-3) is fixedly connected between the bottom ends of the lower plug-in columns (302a-2), a second sliding column (302a-3a) is symmetrically fixed between the transverse plate (302a-1) and the transverse push platform (302a-3), and a second spring (T2) is connected to the outer shell of the second sliding column (302a-3a); Both ends of the transverse plate (302a-1) are also fixed with disassembly and assembly plates (302a-1a), and the disassembly and assembly plates (302a-1a) are detachably connected to the docking ears (301c-3a); The toggle rod (202) comprises a toggle plate (202a), a connecting shaft (202b) and a push sliding column (202c) fixed at both side ends thereof, the connecting shaft (202b) being fixed to the output shaft of the motor (201), and the push sliding column (202c) being slidably inserted into the sliding hole (102a-2) and rotatably inserted into the rotating sleeve ring (301c-2a).

2. The device for clearing and preventing coal drop pipe blockage according to claim 1, characterized in that: The movable elastic member (302b) comprises a central plate (302b-1) and first push plates (302b-2) symmetrically fixed on two sides thereof, and stabilizing clamps (302b-1a) are also fixed at both ends of the central plate (302b-1); The inner wall of the lower plug column (302a-2) is provided with a sliding slot (302a-2a), the stabilizing clamp (302b-1a) is slidably inserted into the sliding slot (302a-2a), the center plate (302b-1) is slidably sleeved outside the second slide column (302a-3a), and the two ends of the second spring (T2) are respectively fixed to the transverse plate (302a-1) and the center plate (302b-1); Second push plates (302a-2b) are symmetrically fixed to both side walls of the lower insert column (302a-2), and extrusion plates (302b-2a) are symmetrically fixed to both sides of the center plate (302b-1) at the bottom of the first push plate (302b-2); A blocking platform (102c) is detachably connected between the mounting plates (102b-2a) on both sides, a lower embedding hole (102c-1) is provided in the middle of the blocking platform (102c), the lower plug column (302a-2) slides through the lower embedding hole (102c-1), and the extrusion plate (302b-2a) contacts and abuts against the top of the blocking platform (102c).

3. The device for clearing and preventing coal drop pipe blockage according to claim 2, characterized in that: The fixed top frame (101) comprises a top fixed frame (101a) and a crossbeam (101b) symmetrically connected to the inner wall thereof; the top fixed frame (101a) is fixed at the top coal drop opening of the coal drop pipe (401); a load-bearing plate (101c) is fixed to the bottom end of the crossbeam (101b); a load-bearing column (101c-1) is fixed to the outer wall of the load-bearing plate (101c); and the load-bearing column (101c-1) is rotatably inserted into the hinged hole (102a-1).

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