Blockage removing equipment suitable for raw coal bunker of thermal power plant

Abstract

The invention discloses unblocking equipment suitable for a raw coal bunker of a thermal power plant, and relates to the technical field of raw coal bunkers, the unblocking equipment comprises a coal bunker, the upper part of the coal bunker is in a bucket shape with a wide upper part and a narrow lower part, the lower part of the coal bunker is cylindrical, a plurality of driving mechanisms are arranged on the upper part of the coal bunker along the circumferential direction, and unblocking mechanisms are arranged on the driving mechanisms; and a dismounting mechanism corresponding to the unblocking mechanism is arranged at the lower part of the coal bunker. The device has the advantages that through cooperation of the unblocking mechanism and the dismounting mechanism, simple and rapid dismounting is achieved, independent dismounting can be achieved, single replacement is facilitated, and the maintenance cost is saved; through cooperation of the driving mechanism and the unblocking mechanism, coal falling is promoted, the problems of blocking and wall hanging are solved, the winding roller pulls the upper portion of the ball chain structure to move in the horizontal direction, the lower portion of the ball chain structure is kept in a fixed state and is matched with moving in the vertical direction, the disturbance area of the unblocking mechanism on coal attached to the inner wall of a coal bunker is increased, and the unblocking effect is improved. And the effects of unblocking and wall scraping are further enhanced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of raw coal bunker, and particularly relates to a jam clearing device suitable for a raw coal bunker of a thermal power plant. BACKGROUND

[0002] The raw coal bunker is an important component of industrial facilities using coal as fuel or raw material, such as thermal power plants, coal chemical plants and steel plants, and is usually arranged in a coal powder preparation system and used as a large container for storing coal transported from a coal mine and subjected to preliminary treatment. The main functions of the raw coal bunker include buffering and storing coal, ensuring production continuity and homogenization.

[0003] In the process of buffering and storing coal, the coal particles are uneven in size, and the moisture content is high, which causes the coal to adhere to the wall of the raw coal bunker, and only the coal in the central area falls, while the surrounding coal is stagnant, thereby causing the wall-hanging phenomenon, affecting the speed of discharging, and even causing the discharge port to be blocked, so that the production continuity cannot be ensured, and the subsequent processing work is affected. The common solution is to use an air cannon to assist flow to disperse the wall-adhered coal or use a rotating mechanism installed inside to continuously scrape the wall. However, the air cannon has a limited flow-assisting range, which results in poor jam clearing effect, and even the outlet of the air cannon can be blocked. If the rotating mechanism installed inside is used to continuously scrape the wall, a huge wall-hanging knife and power to drive the huge wall-hanging knife are needed, which increases the production cost and the maintenance cost of the huge wall-hanging knife.

[0004] Therefore, in order to solve the problem of raw coal bunker jam and improve the jam clearing effect, the present application provides a jam clearing device suitable for a raw coal bunker of a thermal power plant. SUMMARY

[0005] The present application aims at solving the problems in the prior art and provides a jam clearing device suitable for a raw coal bunker of a thermal power plant.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a jam clearing device suitable for a raw coal bunker of a thermal power plant, comprising a coal bunker, the upper part of the coal bunker is in the shape of a wide top and narrow bottom bucket, and the lower part of the coal bunker is in the shape of a cylinder, a plurality of driving mechanisms are arranged on the upper part of the coal bunker in the circumferential direction, and a jam clearing mechanism is arranged on each driving mechanism, and a dismounting mechanism corresponding to the jam clearing mechanism is arranged on the lower part of the coal bunker.

[0007] The driving mechanism comprises a driving assembly arranged on an inclined slide rail, and the driving assembly is used to drive the jam clearing mechanism to clear the coal bunker and reciprocally clean the coal adhered to the inner wall in the upward and downward directions and the circumferential direction.

[0008] The clogging clearing mechanism comprises a plurality of clogging clearing balls, and the plurality of clogging clearing balls are connected through mounting pieces.

[0009] The dismounting mechanism comprises a dismounting assembly arranged on the lower part of the coal bunker, and the dismounting assembly is used for quickly dismounting the plurality of clogging clearing mechanisms and can dismount a single clogging clearing mechanism.

[0010] In the clogging clearing device for the raw coal bunker of the thermal power plant, a plurality of inclined sliding rails are evenly arranged on the upper part of the outer wall of the coal bunker in the circumferential direction, an arc-shaped sliding rail corresponding to the inclined sliding rails is arranged on the top wall of the coal bunker, and an arc-shaped sliding frame is slidably connected to the arc-shaped sliding rail in the circumferential direction.

[0011] In the clogging clearing device for the raw coal bunker of the thermal power plant, the driving assembly comprises a sliding seat, the sliding seat is slidably connected to the inclined sliding rail through an electric sliding block, a winding roller is rotatably connected to the top wall of the sliding seat through a support, and a motor one is mounted on the sliding seat and fixedly connected to the winding roller.

[0012] In the clogging clearing device for the raw coal bunker of the thermal power plant, the mounting piece comprises two mounting chains symmetrically fixed to the clogging clearing ball and a mounting seat fixed to the ends of the two mounting chains away from the clogging clearing ball, and the mounting seat is connected to the adjacent clogging clearing ball through bolts.

[0013] In the clogging clearing device for the raw coal bunker of the thermal power plant, the reinforcing assembly comprises two reinforcing chains symmetrically arranged, the reinforcing chains are connected to the ends of the mounting seat fixed to the two mounting chains through connecting rings, the ends of the two reinforcing chains away from the mounting piece are detachably mounted with U-shaped lock buckles, one end of the U-shaped lock buckle is a plug-in end, and the other end of the U-shaped lock buckle is a mounting end.

[0014] In the clogging clearing device for the raw coal bunker of the thermal power plant, a locking hole matched with the plug-in end is arranged on the mounting end, the plug-in end of one U-shaped lock buckle and the mounting end of another U-shaped lock buckle are threadedly connected with a locking bolt, the two U-shaped lock buckles are connected in a head-to-tail manner to form a closed loop, and the two reinforcing chains connected through the U-shaped lock buckles form a closed loop and tightly hold the corresponding clogging clearing ball.

[0015] In the clogging clearing device for the raw coal bunker of the thermal power plant, the butt joint assembly comprises a plug-in plate, the plug-in plate is fixedly connected to the lowermost clogging clearing ball, a slot one is arranged on the side wall of the plug-in plate, a butt joint block one is fixedly connected to the slot one, and a butt joint block two is fixedly connected to the top wall of the butt joint block one.

[0016] In the above-mentioned unblocking device suitable for the raw coal bunker of the thermal power plant, the dismounting mechanism comprises a plurality of docking grooves uniformly arranged on the inner wall of the coal bunker in the circumferential direction, the docking grooves are matched with the plug-in plates, the outer wall of the bottom of the coal bunker is uniformly provided with operating grooves corresponding to the docking grooves in the circumferential direction, and the docking grooves are communicated with the operating grooves.

[0017] In the above-mentioned unblocking device suitable for the raw coal bunker of the thermal power plant, the dismounting assembly further comprises a gear ring, and the outer wall of the bottom of the coal bunker is provided with an annular sliding groove, the top of the annular sliding groove is communicated with the bottom of the operating groove, the gear ring is rotatably connected to the annular sliding groove, and the top of the gear ring is coaxially fixedly connected with a circular ring seat, and the top wall of the circular ring seat is rotatably connected with an L-shaped clamping frame through a support two.

[0018] In the above-mentioned unblocking device suitable for the raw coal bunker of the thermal power plant, the bottom wall of the horizontal section of the L-shaped clamping frame is provided with a second slot matched with the second docking block, the outer ring wall of the circular ring seat is installed with a second motor through a support three, and the output end of the second motor is fixedly connected with the vertical section of the L-shaped clamping frame.

[0019] Compared with the prior art, the present application has the following advantages: 1. Through the cooperation of the unblocking mechanism and the dismounting mechanism, simple and rapid dismounting is realized, and the dismounting is independent, which is convenient for individual replacement and saves maintenance cost. The connection strength between the unblocking balls is high, and the dismounting is simple, which is convenient for individual dismounting and wearing of the unblocking balls; the unblocking balls and the coal bunker are locked synchronously through one-step rotating action, and the connection stability is improved from the limiting in multiple directions.

[0020] 2. Through the cooperation of the driving mechanism and the unblocking mechanism, the coal material is promoted to fall, and the problems of blockage and wall hanging are solved; in the process of moving of the unblocking balls, the coal material in a static state when blocked is pushed and squeezed to destroy the stable blocked state formed between the coal materials; and in the process of moving of the unblocking balls, the coal material adhering to the wall of the coal bunker can be scraped off to remove the coal material hanging on the wall of the coal bunker.

[0021] 3. Through the cooperation of the driving mechanism and the unblocking mechanism, the upper part of the ball chain structure is pulled by the winding roller to move horizontally, and the lower part of the ball chain structure remains in a fixed state, which is matched with the movement in the up-down direction to increase the disturbance area of the coal material adhering to the inner wall of the coal bunker of the unblocking mechanism, and further enhances the unblocking and wall scraping effect. BRIEF DESCRIPTION OF DRAWINGS

[0022] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings, in which:

[0023] Figure 1 is a schematic view of the overall structure.

[0024] Figure 2 is a schematic view of the overall structure from above.

[0025] Figure 3 is Figure 1 is an enlarged view of A in the middle.

[0026] Figure 4 is a schematic view of a partial cross-section of the coal bunker.

[0027] Figure 5 is a schematic view of a partial structure of the unblocking mechanism.

[0028] Figure 6 is a schematic view of a partial structure of the unblocking mechanism.

[0029] Figure 7 is a schematic view of a partial structure of the unblocking mechanism and the disassembly mechanism.

[0030] Figure 8 is a schematic view of the change in the position of the abutting block and the abutting plate before and after being limited.

[0031] Figure 9 is a schematic view of the change in the position of the abutting block and the abutting plate before and after being limited.

[0032] Figure 10 is a schematic view of the structure when the sliding seat is sliding.

[0033] Figure 11 is a schematic view of the change in the horizontal position of the unblocking ball when the sliding seat is sliding.

[0034] In the figure: 1, coal bunker; 2, driving mechanism; 21, inclined slide rail; 22, driving assembly; 221, sliding seat; 222, winding roller; 223, motor one; 23, arc-shaped slide carriage; 3, unblocking mechanism; 31, unblocking ball; 32, mounting piece; 33, reinforcing assembly; 331, reinforcing chain; 332, U-shaped lock buckle; 333, locking hole; 334, locking bolt; 34, abutting assembly; 341, abutting plate; 342, abutting block one; 343, abutting block two; 4, disassembly mechanism; 41, abutting groove; 42, operation groove; 43, disassembly assembly; 431, tooth ring; 432, L-shaped clamping frame; 433, motor two. DETAILED DESCRIPTION

[0035] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0036] With reference to Figures 1-2 A kind of equipment for clearing and unblocking suitable for coal bunker of thermal power plant, including coal bunker 1, the upper part of coal bunker 1 is in the shape of wide upper narrow lower bucket, the lower part of coal bunker 1 is in the shape of cylinder, the upper part of coal bunker 1 is provided with multiple driving mechanisms 2 along the circumferential direction, driving mechanism 2 is all provided with clearing and unblocking mechanism 3, the lower part of coal bunker 1 is provided with dismounting mechanism 4 corresponding with clearing and unblocking mechanism 3.

[0037] Clearing and unblocking mechanism 3 is positioned and installed by dismounting mechanism 4, the lower part of multiple clearing and unblocking mechanism 3 can be locked simultaneously and disassembled simultaneously, and clearing and unblocking mechanism 3 can be unlocked and disassembled individually, to facilitate individual maintenance and replacement, save production cost.

[0038] When clearing and unblocking coal bunker 1, driving mechanism 2 drives clearing and unblocking mechanism 3 to carry out short-distance reciprocating displacement up and down, the movement of clearing and unblocking mechanism 3 can disturb the coal material adhered to the inner wall of coal bunker 1, and destroy the static adhering state of the coal material;Driving mechanism 2 continues to drive clearing and unblocking mechanism 3 to carry out short-distance reciprocating displacement up and down in the circumferential direction, to increase the disturbance area of the coal material adhered to the inner wall of coal bunker 1 by clearing and unblocking mechanism 3, and improve the clearing and unblocking efficiency.

[0039] With reference to Figures 1-3 Driving mechanism 2 includes driving assembly 22 provided on inclined slide rail 21, and driving assembly 22 is used to drive clearing and unblocking mechanism 3 to clear and unblock coal bunker 1, and simultaneously reciprocally clean the coal material adhered to the inner wall in the upward and downward directions and the circumferential direction.

[0040] With reference to Figure 1 And Figure 3 Multiple inclined slide rails 21 are evenly arranged on the outer wall of coal bunker 1 in the circumferential direction, and an arc-shaped slide rail corresponding to inclined slide rail 21 is arranged on the top wall of coal bunker 1, and an arc-shaped slide carriage 23 is slidably connected to the arc-shaped slide rail in the circumferential direction;Driving assembly 22 includes sliding seat 221, and sliding seat 221 is slidably connected to inclined slide rail 21 by an electric sliding block, a winding roller 222 is rotatably connected to the top wall of sliding seat 221 by a support, and a motor one 223 is installed on sliding seat 221, and the output end of motor one 223 is fixedly connected to winding roller 222.

[0041] With reference to Figures 1-4The clogging clearing mechanism 3 comprises a plurality of clogging clearing balls 31, the plurality of clogging clearing balls 31 are connected through a mounting piece 32, a reinforcing assembly 33 is arranged on the two adjacent mounting pieces 32, the reinforcing assembly 33 is used for reinforcing the connection strength of the two clogging clearing balls 31 connected through the mounting piece 32, and a docking assembly 34 is arranged on the lowermost clogging clearing ball 31, and the docking assembly 34 is used for connecting the lower part of the coal bunker 1 and the lowermost clogging clearing ball 31.

[0042] With reference to Figures 3-6 The mounting piece 32 comprises two mounting chains symmetrically fixed to the clogging clearing ball 31 and a mounting seat fixed to the ends of the two mounting chains away from the clogging clearing ball 31, and the mounting seat is connected to the adjacent clogging clearing ball 31 through a bolt.

[0043] With reference to Figures 4-6 The reinforcing assembly 33 comprises two reinforcing chains 331 symmetrically arranged, the reinforcing chains 331 are connected to the ends of the two mounting chains fixed with the mounting seat through a connecting ring, the ends of the two reinforcing chains 331 away from the mounting piece 32 are detachably provided with U-shaped buckles 332, one end of the U-shaped buckle 332 is a plug-in end, the other end of the U-shaped buckle 332 is a mounting end, a locking hole 333 matched with the plug-in end is formed in the mounting end, the plug-in end of one U-shaped buckle 332 and the mounting end of the other U-shaped buckle 332 are threadedly connected with a locking bolt 334, the two U-shaped buckles 332 are connected in a head-to-tail mode to form a closed loop, and the two reinforcing chains 331 connected through the U-shaped buckles 332 form a closed loop and tightly hold the corresponding clogging clearing ball 31.

[0044] With reference to Figure 4 , Figure 5 and Figure 7 The docking assembly 34 comprises a plug-in plate 341, the plug-in plate 341 is fixedly connected to the lowermost clogging clearing ball 31, a slot one is formed in the side wall of the plug-in plate 341, a docking block one 342 is fixedly connected to the slot one, and a docking block two 343 is fixedly connected to the top wall of the docking block one 342.

[0045] With reference to Figure 1 and Figure 7 The dismounting mechanism 4 comprises a dismounting assembly 43 arranged at the lower part of the coal bunker 1, the dismounting assembly 43 is used for quickly dismounting the plurality of clogging clearing mechanisms 3 and can separately dismount a single clogging clearing mechanism 3, the dismounting mechanism 4 further comprises a plurality of docking grooves 41 uniformly formed in the inner wall of the coal bunker 1 in the circumferential direction, the docking grooves 41 are matched with the plug-in plate 341, the outer wall of the bottom of the coal bunker 1 is uniformly provided with operation grooves 42 corresponding to the docking grooves 41 in the circumferential direction, and the docking grooves 41 are communicated with the operation grooves 42.

[0046] With reference to Figures 7-8The disassembly and assembly component 43 comprises a gear ring 431, an annular sliding groove is formed in the bottom outer wall of the coal bunker 1, the top of the annular sliding groove is communicated with the bottom of the operation groove 42, the annular sliding groove is rotationally connected with the gear ring 431, the top of the gear ring 431 is coaxially fixedly connected with a circular ring seat, and the top wall of the circular ring seat is rotationally connected with an L-shaped clamping frame 432 through a support two; a groove two matched with the butt joint block two 343 is formed in the bottom wall of the horizontal section of the L-shaped clamping frame 432, a motor two 433 is installed on the outer ring wall of the circular ring seat through a support three, and the output end of the motor two 433 is fixedly connected with the vertical section of the L-shaped clamping frame 432.

[0047] As shown in Figure 5 and Figure 6 , two adjacent unblocking balls 31 are connected through the mounting piece 32, the mounting seat on the lower unblocking ball 31 is fixed on the upper unblocking ball 31 through a bolt, the connection of the two unblocking balls 31 is completed, and the two mounting chains strengthen the connection strength between the two adjacent unblocking balls 31; the upper unblocking ball 31 is tightly held through the two reinforcing chains 331, the ends of the two reinforcing chains 331 and the two mounting chains of the upper unblocking ball 31 are locked through the closed loop structure formed by the butt joint installation of the two U-shaped lock buckles 332, so that the connection strength between the two unblocking balls 31 is further strengthened.

[0048] It should be noted that the connection between the two U-shaped lock buckles 332 is realized through two bolts, and the connection between the mounting seat and the corresponding unblocking ball 31 is realized through a bolt, so that the connection strength is guaranteed and the disassembly and assembly are simple, and the worn unblocking ball 31 can be easily disassembled and assembled.

[0049] The plurality of unblocking balls 31 connected through the mounting piece 32 and the reinforcing assembly 33 form a flexible ball chain structure, and the distance between the two adjacent unblocking balls 31 can be changed within a small range.

[0050] When the ball chain structure is installed, the mounting piece 32 connected to the uppermost unblocking ball 31 is locked with the winding roller 222, the plug-in plate 341 connected to the lowermost unblocking ball 31 of the ball chain structure is clamped into the corresponding butt joint groove 41 for preliminary positioning, the butt joint groove 41 limits the plug-in plate 341 in the circumferential direction, and the bottom part of the plug-in plate 341 enters the operation groove 42, and the butt joint block one 342 is located above the gear ring 431 and the circular ring seat, so that the side wall of the unblocking ball 31 is attached to the inner wall of the coal bunker 1.

[0051] The gear ring 431 is provided with meshing gears (not shown in the figure) on the side, the gears are driven to rotate by a coaxially connected motor three (not shown in the figure), and the rotation of the gears drives the rotation of the gear ring 431.

[0052] When the plurality of ball chain structures in the circumferential direction are preliminarily positioned, the L-shaped clamping frame 432 is driven to move in the circumferential direction through the clockwise rotation of the gear ring 431. The initial state of the L-shaped clamping frame 432 is Figure 8 As shown in the upper drawing, the L-shaped clamping frame 432 is located at the right side of the operation slot 42; after the circumferential displacement, the state of the L-shaped clamping frame 432 is Figure 8 As shown in the middle drawing, the L-shaped clamping frame 432 gradually approaches the plug-in plate 341 and the butt block one 342, until the butt block two 343 enters the slot two at the bottom wall of the horizontal section of the L-shaped clamping frame 432, the butt block two 343 limits the plug-in plate 341 in the axial direction, and at this time, the horizontal section of the L-shaped clamping frame 432 and the circular ring seat limit the butt block one 342 in the up-down direction. At this time, the synchronous locking of the plurality of plug-in plates 341 is completed through one-step rotation.

[0053] When maintenance is performed and the single ball chain structure needs to be disassembled, the L-shaped clamping frame 432 is driven to rotate through the counterclockwise rotation of the output end of the motor two 433, the L-shaped clamping frame 432 changes from the initial inverted L-shaped state to the L-shaped state (as shown in the lower drawing), the L-shaped clamping frame 432 releases the limitation on the butt block two 343, and at the same time, the L-shaped clamping frame 432 no longer limits the butt block one 342 in cooperation with the circular ring seat, so that the limitation of the corresponding single plug-in plate 341 is released, and the single plug-in plate 341 can be disassembled alone, which is convenient for single replacement and saves maintenance cost. Figure 8

[0054] The ball chain structure is installed and locked, and the length of the ball chain structure in the initial state is slightly larger than the length of the inner wall inclined surface of the coal bunker 1. Due to the gravity, the upper part of the ball chain structure is in a taut state, and due to the certain supporting force of the butt assembly 34 after being installed on the coal bunker 1 and the activity gap between the installed chains, the lower part of the ball chain structure is in an untight state (as shown in the left drawing). Figure 9

[0055] When normal buffering and storage operations are performed in the coal bunker 1, when blockage and wall hanging occur, the winding roller 222 is driven to rotate through the output end of the motor one 223, the winding roller 222 rotates and winds the corresponding installation piece 32, so as to drive the corresponding ball chain structure to move upward for a short distance, the untight installation chain is taut (as shown in the right drawing), and the distance between the two adjacent unblocking balls 31 is moved to the farthest state. In the movement process of the unblocking ball 31, the coal material in a static state when blocked is pushed and squeezed, the stable blocked state formed between the coal materials is destroyed, the coal material is promoted to fall, and the blockage problem is solved; and in the movement process of the unblocking ball 31, the coal material attached to the wall of the coal bunker 1 can be scraped off, and the wall hanging problem of the coal bunker 1 is solved. Figure 9

[0056] ​​​When the winding roller 222 rotates, the electric sliding block drives the sliding seat 221 to slide in the corresponding inclined slide rail 21, the winding roller 222 drags the upper part of the ball chain structure to move horizontally and circumferentially, and the lower part of the ball chain structure remains in a fixed state (as shown in FIGS. Figure 2 、 Figure 10 and Figure 11 With the movement in the up-down direction, the disturbance area of the coal adhering to the inner wall of the coal bunker 1 by the jam-clearing mechanism 3 is increased, and the jam-clearing and wall-scraping effects are further enhanced.

[0057] It should be noted that the inclined slide rail 21 is inclined, and when the sliding seat 221 slides, it gradually approaches the top of the coal bunker 1, preventing excessive pulling during the guided tilting due to the relatively fixed length of the ball chain structure. The upper part of the installation chain of the ball chain structure is supported by the arc-shaped slide 23, which slides adaptively along the arc-shaped slide rail during the guided tilting, thereby reducing the friction experienced by the installation chain.

[0058] In the present application, the jam-clearing mechanism 3 and the disassembly mechanism 4 are used in cooperation to achieve simple and rapid disassembly, and can be disassembled individually, which is convenient for individual replacement and saves maintenance costs. Through the cooperation of the driving mechanism 2 and the jam-clearing mechanism 3, the coal is promoted to fall by means of up-down reciprocating movement, solving the problems of jamming and wall sticking. The circumferential reciprocating movement cooperates with it to increase the disturbance area of the coal adhering to the inner wall of the coal bunker by the jam-clearing mechanism 3, further enhancing the jam-clearing and wall-scraping effects. Although the present application increases the jam-clearing mechanism 3 and the disassembly mechanism 4 compared to the prior art, they are all composed of simple and low-cost parts, which can achieve efficient jam-clearing effect, avoid the influence of jamming on the speed of discharging, ensure the continuity of production, and ensure the smooth and continuous development of subsequent processing work. From the long-term economic benefits, the additional equipment cost of the present application compared to the prior art can be completely ignored.

[0059] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0060] In addition, the terms "first", "second", "one", "two" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined with "first", "second", "one", "two" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0061] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and other terms should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0062] The embodiments of the specific implementation are the preferred embodiments of the present application, and are not limited to the protection scope of the present application. Therefore, any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A device for clearing blockage in raw coal bunkers of thermal power plants, comprising a coal bunker, characterized in that: The upper part of the coal bunker is bucket-shaped, wide at the top and narrow at the bottom, and the lower part of the coal bunker is cylindrical. The upper part of the coal bunker is provided with multiple driving mechanisms along the circumferential direction, and each driving mechanism is provided with a clearing mechanism. The lower part of the coal bunker is provided with a disassembly and assembly mechanism corresponding to the clearing mechanism. The driving mechanism includes a driving assembly provided on the inclined slide rail, the driving assembly is used to drive the clearing mechanism to clear the coal bunker and simultaneously to perform reciprocating cleaning of the coal material adhering to the inner wall in the vertical direction and the circumferential direction; The blockage clearing mechanism includes a plurality of blockage clearing balls, and the plurality of blockage clearing balls are connected by mounting members. A reinforcing assembly is provided on two adjacent mounting members, and the reinforcing assembly is used to strengthen the connection strength of the two blockage clearing balls connected by the mounting members. A docking assembly is provided on the bottom blockage clearing ball, and the docking assembly is used to connect the lower part of the coal bunker and the bottom blockage clearing ball. The disassembly and assembly mechanism includes a disassembly and assembly component arranged at the lower part of the coal bunker, and the disassembly and assembly component is used for quickly disassembling and assembling multiple blockage clearing mechanisms, and can independently disassemble a single blockage clearing mechanism.

2. The device for clearing blockage in raw coal bunker of thermal power plant according to claim 1, characterized in that: A plurality of inclined slide rails are evenly arranged on the upper portion of the outer wall of the coal bunker along the circumferential direction, a curved slide rail corresponding to the inclined slide rail is arranged on the top wall of the coal bunker, and a curved slide frame is circumferentially slidably connected to the curved slide rail.

3. The blockage clearing device for raw coal bunkers in thermal power plants according to claim 1 is characterized in that: The driving assembly includes a sliding seat, and the sliding seat is connected to the inclined slide rail by an electric slider to slide back and forth. The top wall of the sliding seat is rotatably connected to the winding roller through a bracket, and a motor 1 with an output end fixedly connected to the winding roller is installed on the sliding seat.

4. The blockage clearing device for raw coal bunkers in thermal power plants according to claim 1 is characterized in that: The mounting member includes two mounting chains symmetrically fixedly connected to the clearing balls and a mounting seat fixed together at one end of the two mounting chains away from the clearing balls. The mounting seat is connected to the adjacent clearing balls through bolts.

5. The blockage clearing device for raw coal bunkers in thermal power plants according to claim 4 is characterized in that: The reinforcement assembly includes two symmetrically arranged reinforcement chains, and the reinforcement chains are connected to one end of the two mounting chains fixed with a mounting seat through a connecting ring. The two reinforcement chains are detachably installed with a U-shaped lock at one end away from the mounting part, one end of the U-shaped lock is the plug-in end, and the other end of the U-shaped lock is the mounting end.

6. The blockage clearing device for raw coal bunkers in thermal power plants according to claim 5, characterized in that: The mounting end is provided with a locking hole that is compatible with the plug-in end. The plug-in end of one U-shaped lock buckle and the mounting end of the other U-shaped lock buckle are threadedly connected with a locking bolt. The two U-shaped lock buckles are connected end to end to form a closed loop. The two reinforcing chains connected by the U-shaped lock buckles form a closed loop and hold the corresponding clearing ball tightly.

7. The blockage clearing device for raw coal bunkers in thermal power plants according to claim 1, characterized in that: The docking assembly includes a plug-in board, and the plug-in board is fixedly connected to the lowest clearing ball. The side wall of the plug-in board is provided with a slot 1, the slot 1 is fixedly connected to a docking block 1, and the top wall of the docking block 1 is fixedly connected to a docking block 2.

8. The blockage clearing device for raw coal bunkers in thermal power plants according to claim 1, characterized in that: The disassembly and assembly mechanism also includes a plurality of docking grooves evenly opened on the inner wall of the coal bin along the circumferential direction, the docking grooves are adapted to the plug-in plates, and the bottom outer wall of the coal bin is evenly opened with operating grooves corresponding to the docking grooves along the circumferential direction, and the docking grooves are connected to the operating grooves.

9. The blockage clearing device for raw coal bunkers in thermal power plants according to claim 8, characterized in that: The disassembly and assembly component includes a gear ring, and an annular slide groove is opened on the bottom outer wall of the coal bunker. The top of the annular slide groove is connected to the bottom of the operating groove. The gear ring is rotatably connected to the annular slide groove, and the top of the gear ring is coaxially fixedly connected to a circular ring seat. The top wall of the circular ring seat is rotatably connected to an L-shaped clamping frame through a second bracket.

10. The blockage clearing device for raw coal bunkers in thermal power plants according to claim 9, characterized in that: The bottom wall of the horizontal section of the L-shaped clamping frame is provided with a slot 2 adapted to the docking block 2, the outer ring wall of the annular seat is installed with a motor 2 through a bracket 3, and the output end of the motor 2 is fixedly connected to the vertical section of the L-shaped clamping frame.

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