Anti-blocking coal bunker for boiler

Abstract

The utility model provides an anti-blocking coal bunker for a boiler, which comprises a coal bunker body, and a semicircular groove is processed at the bottom end of the coal bunker body; a semicircular groove is formed in the coal bunker body, the periphery of the discharging roller is matched with the semicircular groove, a stepped groove and two mounting plates are formed in the discharging roller, the top ends of the two mounting plates are connected with the coal bunker body through connecting pieces, and the bottom ends of the two mounting plates are rotationally connected with the discharging roller through pin shafts; the utility model relates to the technical field of coal bunkers, under the action of an external power source, a pin shaft is driven to rotate in a mounting plate, and the pin shaft drives a blanking roller to rotate by 180 degrees so as to drive a stepped groove to be inverted, so that coal blocks blocked in the stepped groove are directly discharged, the traditional manual dredging mode is changed, the dredging time is saved, and due to the cylindrical design of the blanking roller, the dredging efficiency is improved. And the pressure applied by the coal briquettes to the direction of the discharge port is borne, and the convenience during dredging is improved through rotation of the discharging roller.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal bunker, especially a kind of anti-blocking coal bunker for boiler. BACKGROUND

[0002] Coal bunker for boiler is an important component of boiler system, mainly used for storing and supplying coal, due to the shape of coal block for boiler is different, coal block is easy to be blocked at the discharge port of coal bunker, a few coal bunker uses dredging machine, air cannon and other equipment to dredge, with high cost and maintenance cost;

[0003] When the discharge port of general coal bunker is blocked, it will rely on external plug rod and other dredging tools for manual dredging, due to the cross section of coal bunker discharge port is conical, coal block at the top of coal bunker applies downward pressure to the direction of discharge port, resulting in time-consuming and laborious dredging process, and the discharge port of coal bunker is easy to be damaged. SUMMARY

[0004] The utility model aims at providing a kind of anti-blocking coal bunker for boiler, to solve the problem of time-consuming and laborious dredging process when the discharge port of coal bunker is blocked, relying on external plug rod and other dredging tools for manual dredging.

[0005] The utility model provides a kind of anti-blocking coal bunker for boiler, comprising:

[0006] Coal bunker body, semicircular groove is processed at the bottom end of the coal bunker body;

[0007] Discharge roller, the outer periphery of the discharge roller is matched with the semicircular groove, a stepped groove is formed in the discharge roller, the stepped groove is communicated with the inner cavity of the coal bunker body, the stepped groove is wide at the top and narrow at the bottom, so as to facilitate the coal block to enter the discharge port of the stepped groove;

[0008] Two mounting plates, the two mounting plates are symmetrically distributed based on the discharge roller, the top end of the two mounting plates is connected with the coal bunker body through connecting piece, the bottom end of the two mounting plates is rotatably connected with the discharge roller through pin shaft, and the pin shaft is located at the central axis position of the discharge roller;

[0009] The discharge roller is rotated through the pin shaft to drive the stepped groove to be inverted, and then the coal block blocked in the discharge port of the stepped groove is discharged.

[0010] Preferably, the pin shaft is provided with a driving assembly for driving the pin shaft to rotate;

[0011] The driving assembly comprises:

[0012] First sprocket, the central hole of the first sprocket is fixedly connected with the pin shaft;

[0013] A second sprocket is arranged in parallel with the first sprocket, and the second sprocket is connected with the first sprocket through a chain;

[0014] A driving motor is fixedly connected with the output end of the second sprocket, and a motor base is arranged at the bottom end of the driving motor, and the motor base is used for supporting the driving motor.

[0015] Preferably, the motor base comprises:

[0016] A backing plate is fixedly connected with the upper surface of the driving motor;

[0017] Two fixed cylinders are fixedly connected with the bottom end of the backing plate;

[0018] A cross rod is fixedly connected with one end of the bunker body, and the other end of the cross rod is connected with the fixed cylinder in a plug-in mode, and the cross rod is connected with the fixed cylinder through bolts.

[0019] Preferably, the connecting piece comprises:

[0020] A T-shaped plug-in plate is fixedly connected with the bunker body, and the T-shaped plug-in plate is matched with the plug-in groove of the mounting plate, and the mounting plate is connected with the mounting plate through a positioning pin.

[0021] Preferably, the feeding end of the bunker body is provided with a feeding assembly, and the feeding assembly is used for slowing down the falling speed of coal blocks in the bunker body;

[0022] The feeding assembly comprises:

[0023] A bearing frame is fixedly connected with the feeding end of the bunker body;

[0024] A support rod is arranged in the through slot of the bearing frame, and both ends of the support rod are fixedly connected with the bearing frame;

[0025] A partition plate is fixedly connected with the top end of the support rod, and a isosceles flow distribution plate is hingedly connected with the bottom end of the partition plate, and the isosceles flow distribution plate is used for slowing down the falling speed of coal blocks in the bunker body;

[0026] A plurality of elastic members are fixedly connected with the top end of the partition plate, and the bottom end of the plurality of elastic members is fixedly connected with the isosceles flow distribution plate.

[0027] Preferably, the plurality of elastic members are uniformly distributed based on the isosceles flow distribution plate.

[0028] Preferably, the elastic member is a compression spring.

[0029] Preferably, the bearing frame is fixedly connected with a plurality of blocking rods in the through slot, and the plurality of blocking rods are symmetrically distributed based on the supporting rod.

[0030] Preferably, the mounting plate is provided with a locking bolt, and the mounting plate is connected with the discharging roller through the locking bolt.

[0031] Preferably, the bottom end of the discharging roller is provided with a sealing plate for closing the discharging end of the stepped groove.

[0032] The utility model provides a kind of anti-blocking coal bunker for boiler:

[0033] By the cooperation of coal bunker body, semicircular groove, discharging roller, stepped groove and mounting plate, two mounting plates are rotatably connected with two pin shafts on the axis of discharging roller, then the top end of mounting plate is connected with coal bunker body using connecting piece, and then discharging roller is located in semicircular groove, coal block in coal bunker body falls and discharges through stepped groove, when stepped groove is blocked, pin shaft is driven to rotate in mounting plate under the action of external power source, pin shaft drives discharging roller to rotate 180 degrees to drive stepped groove to be inverted, and then coal block blocked in stepped groove is directly discharged, which changes the traditional manual dredging mode, saves dredging time, and the overall cost is low, the design of discharging roller cylindrical shape, the pressure applied by coal block to discharge port direction is increased by the rotation of discharging roller to increase the convenience during dredging. BRIEF DESCRIPTION OF DRAWINGS

[0034] To more clearly illustrate the specific embodiments of the utility model or the technical solutions in prior art, the drawings needed in the specific embodiments or prior art description will be briefly introduced as follows, and obviously, the drawings in the following description are some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 It is the structure schematic view of the utility model;

[0036] Figure 2 It is the structure schematic view of coal bunker body, discharging roller, stepped groove, sealing plate and mounting plate in the utility model;

[0037] Figure 3 It is the sectional view of discharging roller in the utility model;

[0038] Figure 4 It is the structure schematic view of bearing frame, blocking rod, supporting rod and partition plate in the utility model;

[0039] Figure 5The utility model discloses a structure schematic drawing of the partition plate, the isosceles shunt plate and the elastic piece.

[0040] Figure 6 The utility model discloses a structure schematic drawing of the first chain wheel, the second chain wheel, the chain and the driving motor.

[0041] Figure 7 The utility model discloses a structure schematic drawing of the base plate, the fixed cylinder, the cross bar and the bolt.

[0042] Mark explanation:

[0043] 1-coal bunker body, 11-semicircular groove, 2-feeding roller, 21-staircase groove, 22-sealing plate, 3-mounting plate, 31-pivot, 32-connecting piece, 321-T type plugboard, 322-positioning pin, 33-locking bolt, 4-driving assembly, 41-first chain wheel, 42-second chain wheel, 43-chain, 44-driving motor, 441-motor base, 441a-base plate, 441b-fixed cylinder, 441c-cross bar, 441d-bolt, 5-feeding assembly, 51-bearing frame, 511-barrier rod, 52-supporting rod, 53-partition plate, 54-isosceles shunt plate, 55-elastic piece. Specific implementation

[0044] The technical scheme of the utility model will be described clearly and completely below in combination with examples, and obviously, the described examples are a part of the examples of the utility model, not all the examples. Based on the examples in the utility model, all other examples obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0045] In the description of the utility model, it is understood that the orientation or positional relation indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the orientation or positional relation shown based on the drawing, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation to the utility model.

[0046] In the description of the utility model, it is understood that the terms "first"-"second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first"-"second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "a plurality of" is two or more than two, unless otherwise specifically limited. In addition, the terms "mounting"-"connecting"-"connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; 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, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0047] In the embodiment, as shown in Figure 1 and Figure 2 A boiler anti-blocking coal bunker, comprising: a coal bunker body 1, a semicircular groove 11 is processed at the bottom end of the coal bunker body 1; a discharging roller 2, the outer periphery of the discharging roller 2 is matched with the semicircular groove 11, a stepped groove 21 is arranged in the discharging roller 2, the stepped groove 21 is communicated with the inner cavity of the coal bunker body 1, the width of the stepped groove 21 is gradually reduced from top to bottom, so that the coal blocks can enter the discharge port of the stepped groove 21; two mounting plates 3, the two mounting plates 3 are symmetrically distributed based on the discharging roller 2, the top end of the two mounting plates 3 is connected with the coal bunker body 1 through a connecting piece 32, the bottom end of the two mounting plates 3 is rotationally connected with the discharging roller 2 through a pin shaft 31, and the pin shaft 31 is located at the central axis position of the discharging roller 2; the discharging roller 2 is rotated through the pin shaft 31 to drive the stepped groove 21 to be inverted, and then the coal blocks blocking the discharge port of the stepped groove 21 are discharged.

[0048] Therefore, the two mounting plates 3 are rotationally connected with the two pin shafts 31 on the axis of the discharging roller 2, then the top end of the mounting plate 3 is connected with the coal bunker body 1 through the connecting piece 32, and then the discharging roller 2 is located in the semicircular groove 11 at the bottom end of the coal bunker body 1, the coal blocks in the coal bunker body 1 are discharged by falling through the stepped groove 21, when the stepped groove 21 is blocked, the pin shaft 31 is driven to rotate in the mounting plate 3 under the action of an external power source, the pin shaft 31 drives the discharging roller 2 to rotate by 180 degrees to drive the stepped groove 21 to be inverted, and then the coal blocks blocking in the stepped groove 21 are directly discharged.

[0049] Specifically, the coal bunker body 1 is in the shape of a hollow rectangular cuboid, the discharging roller 2 rotates in the semicircular groove 11 at the bottom end of the coal bunker body 1, the stepped groove 21 is used for guiding the coal blocks in the coal bunker body 1 to be discharged, the mounting plate 3 is used for connecting the discharging roller 2 and the coal bunker body 1, the discharging roller 2 is rotated in the mounting plate 3 through the pin shaft 31, and the design of the two mounting plates 3 increases the connection stability between the discharging roller 2 and the coal bunker body 1.

[0050] In some embodiments, as shown in Figure 6 The pin shaft 31 is configured with a driving assembly 4 for driving the pin shaft 31 to rotate. The driving assembly 4 comprises a first sprocket 41, a central hole of the first sprocket 41 being fixedly connected with the pin shaft 31; a second sprocket 42, the second sprocket 42 being arranged in parallel with the first sprocket 41, the second sprocket 42 being connected with the first sprocket 41 through a chain 43; a driving motor 44, an output end of the driving motor 44 being fixedly connected with the second sprocket 42, a bottom end of the driving motor 44 being configured with a motor base 441, the motor base 441 being used for supporting the driving motor 44.

[0051] Specifically, the first sprocket 41 is used for driving the pin shaft 31 to rotate, the second sprocket 42 is used for driving the first sprocket 41 to rotate through the chain 43 when the second sprocket 42 rotates, and the driving motor 44 provides power for the rotation of the second sprocket 42.

[0052] In addition, under the premise of meeting the driving of the pin shaft 31 to rotate, the driving assembly 4 can also be replaced by other power sources.

[0053] In some embodiments, as shown in Figure 7 The motor base 441 comprises a backing plate 441a, an upper surface of the backing plate 441a being fixedly connected with the driving motor 44; two fixed cylinders 441b, both of the two fixed cylinders 441b being fixedly connected with a bottom end of the backing plate 441a; a cross bar 441c, one end of the cross bar 441c being fixedly connected with the coal bunker body 1, the other end of the cross bar 441c being connected with the fixed cylinder 441b in a plug-in manner, the cross bar 441c being connected with the fixed cylinder 441b through a bolt 441d.

[0054] Specifically, the backing plate 441a is used for installing the driving motor 44, the fixed cylinder 441b is designed with two to increase the stability of the backing plate 441a, the outer wall of the cross bar 441c is processed with a threaded hole, the fixed cylinder 441b can move transversely around the outer periphery of the cross bar 441c, and the bolt 441d is used for fixing the installation positions of the cross bar 441c and the fixed cylinder 441b.

[0055] It should be noted that the chain 43 is separated from the second sprocket 42 by changing the installation positions of the cross bar 441c and the fixed cylinder 441b, so that the discharging roller 2 can be disassembled.

[0056] In some embodiments, as shown in Figure 2 The connecting piece 32 comprises a T-shaped plug plate 321, the T-shaped plug plate 321 being fixedly connected with the coal bunker body 1, the T-shaped plug plate 321 being adapted to the plug slot of the mounting plate 3, and the mounting plate 3 being connected with the mounting plate 3 through a positioning pin 322.

[0057] Specifically, the top end of the mounting plate 3 is processed with a strip-shaped slot matched with the T-shaped plug plate 321, and the positioning pin 322 transversely connects the T-shaped plug plate 321 and the mounting plate 3 after the T-shaped plug plate 321 and the mounting plate 3 are plugged together.

[0058] In some embodiments, as shown in Figure 4 The feeding end of the coal bunker body 1 is configured with a feeding assembly 5 for slowing down the falling speed of the coal blocks in the coal bunker body 1; the feeding assembly 5 comprises: a bearing frame 51 fixedly connected with the feeding end of the coal bunker body 1; a support rod 52 located in the through slot of the bearing frame 51, both ends of the support rod 52 being fixedly connected with the bearing frame 51; a partition plate 53, the top end of the partition plate 53 being fixedly connected with the support rod 52, the bottom end of the partition plate 53 being hingedly connected with an isosceles flow distribution plate 54, the isosceles flow distribution plate 54 being used for slowing down the falling speed of the coal blocks in the coal bunker body 1; a plurality of elastic members 55, the top ends of the plurality of elastic members 55 being fixedly connected with the partition plate 53, the bottom ends of the plurality of elastic members 55 being fixedly connected with the isosceles flow distribution plate 54.

[0059] Specifically, the through slot part of the bearing frame 51 is matched with the feeding port of the coal bunker body 1, the support rod 52 is located at the center position of the bearing frame 51, the isosceles flow distribution plate 54 can rotate at the bottom end of the partition plate 53, and the isosceles flow distribution plate 54 is located at the middle position of the coal bunker body 1; when the coal blocks enter, the acceleration of the coal blocks in falling is slowed down through the inclined isosceles flow distribution plate 54, and the coal blocks are prevented from damaging the discharging roller 2, and the elastic members 55 are designed for the impact force when the coal blocks fall.

[0060] In some embodiments, as shown in Figure 5 The plurality of elastic members 55 are uniformly distributed based on the isosceles flow distribution plate 54.

[0061] Specifically, three elastic members 55 are designed, and the elastic potential energy of the elastic members 55 is used to buffer the impact force when the coal blocks fall.

[0062] In some embodiments, as shown in Figure 5 The elastic member 55 is a compression spring.

[0063] Specifically, the elastic member 55 adopts the design of a compression spring, so that the isosceles flow distribution plate 54 can be slightly deviated at the bottom of the partition plate 53.

[0064] In some embodiments, as shown in Figure 4 The through slot of the bearing frame 51 is fixedly connected with a blocking rod 511, and a plurality of blocking rods 511 are symmetrically distributed based on the support rod 52.

[0065] The blocking rods 511 are designed with four and located on both sides of the supporting rod 52, the number of the blocking rods 511 can also be set according to the use demand, the uniform distribution of the blocking rods 511 prevents the coal blocks with too large volume from entering into the coal bunker body 1, the closer the design of the blocking rods 511 is, the smaller the volume of the coal blocks that can pass through the gap between the adjacent blocking rods 511 is, preventing the coal blocks with too large volume from blocking the stepped groove 21.

[0066] In some embodiments, as shown in Figure 1 The mounting plate 3 is connected with the discharging roller 2 through the locking bolt 33.

[0067] The locking bolt 33 is used to fix the position of the discharging roller 2 between the two mounting plates 3, preventing the discharging roller 2 from rotating randomly during the discharging process.

[0068] In some embodiments, as shown in Figure 2 The bottom end of the discharging roller 2 is configured with the sealing plate 22, which is used to close the discharging end of the stepped groove 21.

[0069] When the discharging roller 2 is rotated, the sealing plate 22 is used to close the discharging end of the stepped groove 21, preventing the coal blocks from entering into the stepped groove 21.

[0070] The working principle of the present application is described below with a preferred embodiment:

[0071] The discharging roller 2 is installed into the semicircular groove 11 at the bottom end of the coal bunker body 1, the coal blocks are put into the coal bunker body 1, the blocking rods 511 located in the bearing frame 51 prevent the coal blocks with too large volume from entering, as the coal blocks fall onto the isosceles flow distribution plate 54, the isosceles flow distribution plate 54 slows down the acceleration of the coal blocks when falling, and when the coal blocks impact the isosceles flow distribution plate 54, the elastic member 55 deforms to buffer the impact force when the coal blocks fall, the coal blocks in the coal bunker body 1 fall and are discharged through the stepped groove 21, when the stepped groove 21 is blocked, the locking bolt 33 is rotated and separated from the discharging roller 2, then the driving motor 44 is started, the output end of the driving motor 44 drives the second sprocket 42 to rotate, the second sprocket 42 drives the first sprocket 41 to rotate through the chain 43, and then the pin shaft 31 rotates in the mounting plate 3, the pin shaft 31 drives the discharging roller 2 to rotate 180 degrees to drive the stepped groove 21 to be inverted, and then the coal blocks blocked in the stepped groove 21 are directly discharged;

[0072] When the feeding roller 2 needs to be maintained, the rotating bolt 441d is separated from the cross bar 441c, the base plate 441a is moved to the direction of the coal bunker body 1, the second chain wheel 42 is separated from the chain 43, the chain 43 is disassembled, then the rotating positioning pin 322 is separated from the T-shaped plug plate 321, the mounting plate 3 is disassembled from the outer wall of the T-shaped plug plate 321, and then the feeding roller 2 is separated from the coal bunker body 1, so as to maintain the feeding roller 2.

[0073] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A coal bunker for boilers with anti-clogging properties, characterized in that, include: The coal bunker body (1) has a semi-circular groove (11) machined at its bottom end; The feeding roller (2) is adapted to the semi-circular groove (11) on its outer periphery. A stepped groove (21) is provided in the feeding roller (2). The stepped groove (21) is connected to the inner cavity of the coal bunker body (1). The stepped groove (21) is wider at the top and narrower at the bottom to facilitate the entry of coal blocks into the discharge port of the stepped groove (21). Two mounting plates (3) are symmetrically distributed based on the feeding roller (2). The top ends of the two mounting plates (3) are connected to the coal bunker body (1) through connectors (32), and the bottom ends of the two mounting plates (3) are rotatably connected to the feeding roller (2) through pins (31). The pins (31) are located at the central axis of the feeding roller (2). The feeding roller (2) rotates via the pin (31) to invert the stepped groove (21), thereby discharging the coal block blocking the outlet of the stepped groove (21).

2. The anti-clogging coal bunker for boilers according to claim 1, characterized in that, The pin (31) is equipped with a drive assembly (4), which is used to drive the pin (31) to rotate; The driving component (4) includes: The first sprocket (41) has its center hole fixedly connected to the pin (31); The second sprocket (42) is arranged parallel to the first sprocket (41), and the second sprocket (42) is connected to the first sprocket (41) by a chain (43); A drive motor (44) is provided, the output end of which is fixedly connected to the second sprocket (42). A motor base (441) is provided at the bottom end of the drive motor (44) for supporting the drive motor (44).

3. A boiler anti-clogging coal bunker according to claim 2, characterized in that, The motor mount (441) includes: A pad (441a) is fixedly connected to the drive motor (44) on its upper surface. Two fixed cylinders (441b) are fixedly connected to the bottom end of the pad (441a); A crossbar (441c) is fixedly connected at one end to the coal bunker body (1), and the other end of the crossbar (441c) is inserted into the fixed cylinder (441b). The crossbar (441c) is connected to the fixed cylinder (441b) by bolts (441d).

4. A boiler anti-clogging coal bunker according to claim 1, characterized in that, The connector (32) includes: T-shaped insert (321), the T-shaped insert (321) is fixedly connected to the coal bunker body (1), the T-shaped insert (321) is adapted to the slot of the mounting plate (3), and the mounting plate (3) is connected to the mounting plate (3) by a positioning pin (322).

5. A boiler anti-clogging coal bunker according to claim 1, characterized in that, The feeding end of the coal bunker body (1) is equipped with a feeding assembly (5), which is used to slow down the falling speed of coal blocks in the coal bunker body (1). The feeding assembly (5) includes: A supporting frame (51) is fixedly connected to the feeding end of the coal bunker body (1); Support rod (52), the support rod (52) is located in the through groove of the bearing frame (51), and both ends of the support rod (52) are fixedly connected to the bearing frame (51); A partition plate (53) is fixedly connected to the support rod (52) at its top end and an isosceles diverter plate (54) is hinged to the bottom end of the partition plate (53). The isosceles diverter plate (54) is used to slow down the falling speed of coal blocks in the coal bunker body (1). Multiple elastic elements (55) are provided, the top ends of which are fixedly connected to the partition plate (53), and the bottom ends of which are fixedly connected to the isosceles diverter plate (54).

6. A boiler anti-clogging coal bunker according to claim 5, characterized in that, The multiple elastic elements (55) are evenly distributed based on the isosceles flow divider (54).

7. A boiler anti-clogging coal bunker according to claim 5, characterized in that, The elastic element (55) is a compression spring.

8. A boiler anti-clogging coal bunker according to claim 5, characterized in that, A barrier rod (511) is fixedly connected in the through groove of the bearing frame (51), and a plurality of the barrier rods (511) are symmetrically distributed based on the support rod (52).

9. A boiler anti-clogging coal bunker according to claim 1, characterized in that, The mounting plate (3) is equipped with a locking pin (33), and the mounting plate (3) is connected to the feeding roller (2) through the locking pin (33).

10. A boiler anti-clogging coal bunker according to claim 1, characterized in that, The bottom end of the feeding roller (2) is provided with a sealing plate (22), which is used to seal the discharge end of the stepped groove (21).

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