Separated coal feeding device for raw coal bunker

Abstract

The utility model relates to the technical field of fire coal supply, in particular to a raw coal bunker separated coal supply device which comprises a base and further comprises an output pipe, an output pipe and a coal supply pipe, the propelling unit is arranged on the base and is used for propelling coal; the supporting unit is arranged on the base and used for supporting the propelling unit, the propelling unit comprises a first pipe body arranged at the top of the supporting unit, a frame body is arranged in the first pipe body, a first motor is fixedly connected to the top of the frame body, and the driving end of the first motor penetrates through the top of the frame body and is fixedly connected with a rotating rod; according to the bin-dividing coal feeding device for the raw coal bin, coal can be sequentially pushed to rapidly pass through in a wave-type operation mode, caking is avoided, meanwhile, due to the fact that the roller can rotate and is combined with wave-type movement, the force generated by the pushing mode is small, and damage to the coal can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal supply technology field, concretely is raw coal bunker branch coal feeder. BACKGROUND

[0002] Raw coal bunker branch coal feeder is the equipment for storing, distributing and supplying raw coal to the boiler in the power plant, it realizes the quick switching and blending of different coal kinds through branch design, improves the flexibility and economy of boiler combustion, ensures the stable operation and power generation efficiency of the boiler.

[0003] In the prior art, the conveying of coal usually adopts screw propulsion, however, the screw propulsion can produce high shearing force in the operation process, and this force can easily cause the breakage of coal particles, affect the quality and utilization efficiency of coal, and the rotating movement of screw propulsion can also easily cause the mutual extrusion and friction of coal in the conveying process, thereby aggravating the caking phenomenon of coal, therefore, the raw coal bunker branch coal feeder is provided. UTILITY MODEL CONTENTS

[0004] One of the technical problems to be solved by the present application is that the screw propulsion can easily cause the breakage of coal particles in the operation process, and aggravate the caking phenomenon of coal.

[0005] To solve the above technical problems, the raw coal bunker branch coal feeder is provided by the embodiments of the present application, which comprises a base and further comprises:

[0006] An output pipe is fixedly connected in the base;

[0007] A propulsion unit is arranged on the base and used for propelling coal;

[0008] A support unit is arranged on the base and used for supporting the propulsion unit.

[0009] In some embodiments, the propulsion unit comprises a first pipe body arranged on the top of the support unit, a frame body is arranged in the first pipe body, a first motor is fixedly connected to the top of the frame body, a driving end of the first motor penetrates through the top of the frame body and is fixedly connected with a rotating rod, the rotating rod is rotatably connected to the inner top of the frame body, a propelling piece is arranged in the first pipe body and used for propelling coal conveying, a return piece is arranged in the propelling piece and used for timely return of the propelling piece, a driving piece is arranged outside the propelling piece and used for driving the frame body and the propelling piece to move.

[0010] In some embodiments, the propelling member comprises a cam fixedly sleeved on the rotating rod, one side of the frame body is slidingly inserted with two first connecting rods, one end of each of the two first connecting rods is rotationally connected with a second connecting rod, the two second connecting rods are rotationally connected with a roller between them, the outer side of each of the two second connecting rods is rotationally connected with a limiting rod, the distal end of each of the two limiting rods is rotationally connected outside the frame body, the two first connecting rods are fixedly connected with a connecting rod, one side of the connecting rod is fixedly connected with a pushing plate, one end of the pushing plate is rotationally connected with three rotating wheels, the three rotating wheels are in active contact with the cam, and the number of the propelling members is set to be multiple groups, and the multiple groups are equidistantly arranged.

[0011] In some embodiments, the returning member comprises a positioning block fixedly connected to the top of the pushing plate, one side of the positioning block is fixedly connected with a first rod body, the first rod body is sleeved with a spring, the frame body is fixedly connected with a cross rod inside, the distal end of the first rod body penetrates through the cross rod, one side of the positioning block is fixedly connected with two second rod bodies, the distal end of each of the two second rod bodies penetrates through the cross rod, and the number of the returning members is the same as that of the propelling members.

[0012] In some embodiments, the driving member comprises four second motors fixedly connected to the outer side of the first pipe body, the driving end of each of the four second motors penetrates into the first pipe body and is fixedly connected with a screw rod, the four screw rods are respectively threaded into four corners of the frame body, and the distal end of each of the four screw rods is rotationally connected inside the first pipe body.

[0013] In some embodiments, the supporting unit comprises two groups of hydraulic oil cylinders fixedly connected to the top of the base, the driving end of each of the two groups of hydraulic oil cylinders is rotationally connected with a fixed ring, the top of each of the two fixed rings is fixedly connected with a supporting plate, the supporting plate is fixedly connected with the first pipe body inside, and one end of the first pipe body is fixedly inserted with the second pipe body.

[0014] In some embodiments, the propelling unit and the supporting unit are arranged in two groups, the two groups are oppositely arranged on the two sides of the output pipe, and the bottom end of each of the two oppositely arranged first pipe bodies is aligned with the output pipe.

[0015] The utility model at least has the following beneficial effects:

[0016] 1、Multiple cams drive the propelling member to move, because the angles of the multiple cams are different, the strokes of the propelling member driven to move are different, therefore multiple rollers are driven to move in a wave mode, the wave mode operation mode can sequentially push the coal material to pass through quickly, and clumping is avoided, simultaneously, because the rollers can self-rotate, the wave mode movement is combined, the strength of the pushing mode is small, and the damage to the coal material can be reduced;

[0017] 2. Starting the hydraulic cylinder can lift the entire device, or drive one of the hydraulic cylinders in a group to lift one side of the device, which is convenient for maintenance, replacement, and cleaning of residue. The first and second pipes are fixed by plugging, which makes it easy to replace the first pipes of different lengths and extend the conveying length. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the first tube body of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal structure of the frame of this utility model;

[0021] Figure 4 This is a schematic diagram of the propulsion component structure of this utility model;

[0022] Figure 5 This utility model Figure 4 Enlarged view of point A.

[0023] In the diagram: 1. Base; 2. Output pipe; 3. Propulsion unit; 31. First pipe body; 32. Frame; 33. First motor; 34. Rotating rod; 35. Propulsion component; 351. Cam; 352. First connecting rod; 353. Second connecting rod; 354. Roller; 355. Limiting rod; 356. Connecting rod; 357. Push plate; 358. Rotary wheel; 36. Return component; 361. Positioning block; 362. First rod body; 363. Spring; 364. Crossbar; 365. Second rod body; 37. Drive component; 371. Second motor; 372. Screw; 4. Support unit; 41. Hydraulic cylinder; 42. Fixing ring; 43. Support plate; 44. Second pipe body. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] Please see Figures 1-5 This utility model provides a technical solution:

[0027] The raw coal bunker feeding device includes a base 1, and also includes an output pipe 2, a propulsion unit 3, and a support unit 4. The output pipe 2 is fixedly connected inside the base 1; the propulsion unit 3 is installed on the base 1 and is used to propel the coal; the support unit 4 is installed on the base 1 and is used to support the propulsion unit 3.

[0028] The propulsion unit 3 includes a first tube 31 disposed on top of the support unit 4. A frame 32 is disposed inside the first tube 31. A first motor 33 is fixedly connected to the top of the frame 32. The drive end of the first motor 33 passes through the top of the frame 32 and is fixedly connected to a rotating rod 34. The end of the rotating rod 34 is rotatably connected to the inner top of the frame 32. A propulsion component 35 is disposed inside the first tube 31 for propulsing coal conveying. A return component 36 is disposed inside the propulsion component 35 for timely return of the propulsion component 35. A drive component 37 is disposed outside the propulsion component 35 for driving the frame 32 and the propulsion component 35 to move. It should be noted that multiple air jets can be installed inside the frame 32 for cleaning residues and waste inside the frame 32. This is prior art and will not be described in detail.

[0029] The propulsion component 35 includes a cam 351 fixedly sleeved outside the rotating rod 34. Two first connecting rods 352 are slidably inserted into one side of the frame 32. One end of each of the two first connecting rods 352 is rotatably connected to a second connecting rod 353. A roller 354 is rotatably connected between the two second connecting rods 353. Limiting rods 355 are rotatably connected to the outer side of each of the two second connecting rods 353. The ends of the two limiting rods 355 are rotatably connected to the outside of the frame 32. A connecting rod 356 is fixedly connected between the two first connecting rods 352. A push plate 357 is fixedly connected to one side of the connecting rod 356. Three rotating wheels 358 are rotatably connected to one end of the push plate 357. All three rotating wheels 358 are in active contact with the cam 351. The number of propulsion components 35 is set to multiple sets, and the multiple sets are arranged at equal intervals.

[0030] The return component 36 includes a positioning block 361 fixedly connected to the top of the push plate 357. A first rod 362 is fixedly connected to one side of the positioning block 361. A spring 363 is sleeved on the first rod 362. A crossbar 364 is fixedly connected inside the frame 32. The end of the first rod 362 protrudes through the crossbar 364. Two second rods 365 are fixedly connected to one side of the positioning block 361. The ends of the two second rods 365 protrude through the crossbar 364. The number of return components 36 is the same as the number of push components 35. When the push plate 357 moves, it will drive the first rod 362 and the second rod 365 to pass through the crossbar 364. At this time, the spring 363 is compressed. The spring 363 provides a reaction force, which can drive the push component 35 back to its original position for continuous operation. It should be noted that the friction of the second rod 365 can achieve a damping effect to avoid repeated oscillation.

[0031] The driving component 37 includes four second motors 371 fixedly connected to the outside of the first tube 31. The driving ends of the four second motors 371 extend into the first tube 31 and are fixedly connected to screws 372. The four screws 372 are threaded through the four corners of the frame 32, and the ends of the four screws 372 are rotatably connected inside the first tube 31. When the second motors 371 are started, the second motors 371 drive the four screws 372 to rotate synchronously, which can drive the frame 32 and the internal structure to move as a whole, shorten the interval with the coal, and accelerate the propulsion.

[0032] In operation, coal is first fed into the first pipe 31 through the second pipe 44. Then, the first motor 33 is started, driving the rotating rod 34 to rotate, which in turn drives multiple cams 351 to rotate. The rotation of a single cam 351 will touch the rotating wheel 358, which will then push the push plate 357 to move, thereby driving the two first connecting rods 352 to move. The two first connecting rods 352 drive the two second connecting rods 353 to move. As the two second connecting rods 353 move, they are restricted by the limit rod 355, which will drive the two second connecting rods 353 to rotate accordingly. The two second connecting rods 353 also drive the rollers 354 to rotate synchronously. Since the angles of the multiple cams 351 are different, the strokes of the pusher 35 are different, which will drive the multiple rollers 354 to push in a wave-like manner. The wave-like operation can push the coal through quickly in sequence, avoiding clumping. At the same time, since the rollers 354 can rotate on their own, combined with the wave-like motion, the force generated by the pushing method is small, which can reduce damage to the coal.

[0033] Furthermore, the return component 36 in this device can be fitted with a protective cover to prevent dust from entering. This is existing technology and will not be described in detail.

[0034] Example 2

[0035] Please see Figures 1-2 This utility model provides a technical solution:

[0036] Unlike Embodiment 1, the support unit 4 includes two sets of hydraulic cylinders 41 fixedly connected to the top of the base 1. The driving ends of the two sets of hydraulic cylinders 41 are rotatably connected to fixed rings 42. The tops of the two fixed rings 42 are fixedly connected to support plates 43. A first tube 31 is fixedly connected inside the support plate 43. A second tube 44 is fixedly inserted into one end of the first tube 31. It should be noted that the bottoms of the two sets of hydraulic cylinders 41 can be fixed to the base 1 with fastening bolts to facilitate the overall rotation of the drive device.

[0037] When in use, starting the hydraulic cylinder 41 can lift the entire device, or drive one of the hydraulic cylinders 41 in a group to lift one side of the device, which is convenient for maintenance, replacement, and cleaning of residue. The first tube 31 and the second tube 44 are fixed by plugging, which makes it easy to replace the first tube 31 of different lengths.

[0038] Furthermore, a protective cover can be installed at the connection between the two first tubes 31 and the output tube 2 to prevent coal powder from overflowing. This is existing technology and will not be elaborated further.

[0039] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A coal feeding device for a raw coal bunker, comprising a base (1), characterized in that: It also includes: Output tube (2), which is fixedly connected inside the base (1); The propulsion unit (3) is mounted on the base (1) and is used to propel coal. A support unit (4) is provided on a base (1) to support a propulsion unit (3). The propulsion unit (3) includes a first tube (31) on top of the support unit (4). A frame (32) is provided inside the first tube (31). A first motor (33) is fixedly connected to the top of the frame (32). The driving end of the first motor (33) passes through the top of the frame (32) and is fixedly connected to a rotating rod (34). The end of the rotating rod (34) is rotatably connected to the inner top of the frame (32). A propulsion component (35) is provided inside the first tube (31) for propulsing coal conveying. The pusher (35) is provided with a return component (36) for timely return of the pusher (35). The pusher (35) is provided with a drive component (37) for driving the frame (32) and the pusher (35) to move. The support unit (4) includes two sets of hydraulic cylinders (41) fixedly connected to the top of the base (1). The drive ends of the two sets of hydraulic cylinders (41) are rotatably connected with fixed rings (42). The tops of the two fixed rings (42) are fixedly connected with support plates (43). The first tube (31) is fixedly connected inside the support plate (43). One end of the first tube (31) is fixedly inserted with a second tube (44).

2. The raw coal bunker feeding device according to claim 1, characterized in that: The propulsion component (35) includes a cam (351) fixedly sleeved outside the rotating rod (34). Two first connecting rods (352) are slidably inserted into one side of the frame (32). One end of each of the two first connecting rods (352) is rotatably connected to a second connecting rod (353). A roller (354) is rotatably connected between the two second connecting rods (353). A limiting rod (355) is rotatably connected to the outside of each of the two second connecting rods (353). The ends of the two limiting rods (355) are rotatably connected to the outside of the frame (32). A connecting rod (356) is fixedly connected between the two first connecting rods (352). A push plate (357) is fixedly connected to one side of the connecting rod (356). Three rotating wheels (358) are rotatably connected to one end of the push plate (357). All three rotating wheels (358) are in active contact with the cam (351). The number of propulsion components (35) is set to multiple groups, and the multiple groups are arranged at equal intervals.

3. The raw coal bunker feeding device according to claim 2, characterized in that: The return component (36) includes a positioning block (361) fixedly connected to the top of the push plate (357). A first rod (362) is fixedly connected to one side of the positioning block (361). A spring (363) is provided on the outer sleeve of the first rod (362). A crossbar (364) is fixedly connected inside the frame (32). The end of the first rod (362) extends through the crossbar (364). Two second rods (365) are fixedly connected to one side of the positioning block (361). The ends of the two second rods (365) extend through the crossbar (364). The number of return components (36) is the same as the number of push components (35).

4. The raw coal bunker feeding device according to claim 2, characterized in that: The driving component (37) includes four second motors (371) fixedly connected to the outside of the first tube (31). The driving ends of the four second motors (371) extend into the first tube (31) and are fixedly connected with screws (372). The four screws (372) are threaded through the four corners of the frame (32), and the ends of the four screws (372) are rotatably connected inside the first tube (31).

5. The raw coal bunker feeding device according to claim 1, characterized in that: The propulsion unit (3) and the support unit (4) are set in two groups, which are arranged opposite each other on both sides of the output tube (2), and the bottom ends of the two oppositely arranged first tube bodies (31) are aligned with the output tube (2).

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