Automatic fuel feeding device for coal-fired boiler

Abstract

The utility model relates to coal electricity technical field, and disclose a kind of fuel automation feeding device for coal-fired boiler, including spiral conveying cylinder, the crushing box being installed in the upper portion of spiral conveying cylinder, and the connecting assembly being set between spiral conveying cylinder and crushing box, the connecting assembly includes the dismounting mechanism being set in the side of spiral conveying cylinder, the inside of crushing box is provided with crushing mechanism, the bottom of crushing box is communicated with spiral conveying cylinder and is arranged, the feed hopper is installed in the top of crushing box, first spring one end is fixedly connected with first sliding block, the inside of limiting rod is attached with the outside of mounting plate and is arranged, the clamping rod is connected with the clamping groove, second spring outer end is fixedly connected with pull rod, the driving wheel is fixedly connected in the right end of second shaft. The utility model solves the problem that the existing device is not convenient for manual operation to dredge the inside of spiral conveying cylinder, thereby affecting the subsequent feeding operation of device.

Description

Technical Field

[0001] This utility model relates to the field of coal power technology, specifically to an automated fuel feeding device for coal-fired boilers. Background Technology

[0002] Currently, many thermal power plants use coal as their main raw material for power generation, and their feeding devices are an important part of the thermal power generation system, mainly responsible for feeding the coal used as fuel into the incinerator.

[0003] According to patent publication number CN 213334486 U, an automated fuel feeding device for coal-fired power plants can clear the material accumulated at the bottom of the feeding hopper to avoid blockage and production disruption. The device has a simple structure, is easy to operate, and improves production efficiency. It is convenient and ingenious to use and suitable for widespread promotion. However, the device is not convenient for manual clearing of the inside of the spiral conveyor cylinder, which affects the subsequent feeding operation of the device.

[0004] To address this issue, we propose an automated fuel feeding device for coal-fired boilers. Utility Model Content

[0005] The purpose of this invention is to provide an automated fuel feeding device for coal-fired boilers, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automated fuel feeding device for coal-fired boilers, comprising a screw conveyor cylinder; A crushing box installed on the upper part of the screw conveyor cylinder; The connecting assembly is provided between the spiral conveyor and the crushing box. The connecting assembly includes a disassembly and assembly mechanism provided on one side of the spiral conveyor. The crushing box is provided with a crushing mechanism. The bottom of the crushing box is connected to the spiral conveyor. The top of the crushing box is equipped with a feed hopper.

[0007] Preferably, the disassembly and assembly mechanism includes an installation groove at the front of the spiral conveyor cylinder, an inspection hole on the inner wall of the installation groove, an installation plate placed on the inner wall of the installation groove, a slot at the front of the installation plate, a first sliding groove at the front of the spiral conveyor cylinder, a first sliding rod fixedly connected to the inner wall of the first sliding groove, a first slider slidably connected to the outer wall of the first sliding rod, a first spring fixedly connected to the inner wall of the first sliding groove, a limit rod fixedly connected to the outer side of the first slider, a locking rod movably connected to one end of the limit rod, a pull rod fixedly connected to the outer end of the locking rod, a second spring fixedly connected to the outer side of the limit rod, a first rotating shaft rotatably connected inside the spiral conveyor cylinder via a bearing, spiral conveying blades fixedly connected to the outer wall of the first rotating shaft, a driven wheel fixedly connected to the right end of the first rotating shaft, a transmission belt rotatably connected to the driven wheel, and a driving wheel rotatably connected to the upper part of the transmission belt.

[0008] Preferably, the crushing mechanism includes a motor fixedly mounted on the left side of the crushing chamber via a base. A second rotating shaft is fixedly connected to the output end of the motor. A crushing roller is fixedly connected to the outer wall of the second rotating shaft. A pressing rod is fixedly connected to the outer wall of the second rotating shaft. A gear is fixedly connected to the outer wall of the outer end of the second rotating shaft. A second sliding groove is formed in the inner wall of the crushing chamber. A second sliding rod is fixedly connected to the inner wall of the second sliding groove. A second slider is slidably connected to the outer wall of the second sliding rod. A third spring is fixedly connected to the inner wall of the second sliding groove. A connecting rod is fixedly connected to the outer side of the second slider. A connecting plate is fixedly connected to the end of the connecting rod away from the second slider. A top rod is fixedly installed on the upper part of the connecting plate. An installation sleeve is fixedly connected to the outer wall of the connecting rod. An inclined pressing block is fixedly installed at the bottom of the installation sleeve via a fixing column.

[0009] Preferably, one end of the first spring is fixedly connected to the first slider, the inner side of the limiting rod is fitted to the outer side of the mounting plate, the snap-fit ​​rod is snapped into the snap-fit ​​groove, and the outer end of the second spring is fixedly connected to the pull rod. Through the cooperation of the mounting groove, inspection hole, mounting plate, snap-fit ​​groove, first slide groove, disassembly and assembly mechanism, first slider, first spring, limiting rod, snap-fit ​​rod, and second spring, it is convenient for manual disassembly of the mounting plate, thereby facilitating manual unblocking of the inside of the spiral conveyor cylinder through the inspection hole, which can prevent blockage during the conveying process of the spiral conveyor cylinder and affect subsequent use.

[0010] Preferably, the drive wheel is fixedly connected to the right end of the second rotating shaft.

[0011] Preferably, the second rotating shaft is rotatably connected to the crushing box via a bearing. There are two gears on the second rotating shaft and two on the crushing roller, and the two gears are meshed together. Through the cooperation of the motor, the second rotating shaft, the crushing roller, the pressure rod, the gear, the connecting plate, the top rod, the second slide groove, the second slide bar, the second slider, the third spring, the connecting rod, the mounting sleeve, and the inclined pressure block, the material can be crushed, which makes it easier for the subsequent feeding trough. Moreover, the reciprocating motion of the top rod can prevent the material from accumulating in the hopper at the top of the crushing box, increasing the applicability of the device.

[0012] Preferably, one end of the third spring is fixedly connected to the second slider.

[0013] This utility model provides an automated fuel feeding device for coal-fired boilers. This automated fuel feeding device for coal-fired boilers has the following beneficial effects: (1) The automatic fuel feeding device for coal-fired boilers, by setting up a disassembly and assembly mechanism, facilitates manual disassembly of the mounting plate under the action of the mounting groove, inspection hole, mounting plate, card slot, first slide groove, disassembly and assembly mechanism, first slider, first spring, limit rod, carding rod, and second spring. This facilitates manual unblocking of the inside of the screw conveyor through the inspection hole, which can prevent the screw conveyor from being blocked during the material conveying process and affecting subsequent use. (2) The automatic fuel feeding device for coal-fired boilers, by setting up a crushing mechanism, can crush materials under the action of a motor, a second rotating shaft, a crushing roller, a pressure rod, a gear, a connecting plate, a top rod, a second sliding groove, a second sliding rod, a second slider, a third spring, a connecting rod, a mounting sleeve, and an inclined pressure block, thus making it easier for the subsequent conveying trough. Furthermore, the reciprocating motion of the top rod can prevent materials from accumulating in the hopper at the top of the crushing box, increasing the applicability of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the disassembly and assembly mechanism of this utility model; Figure 4 This is a schematic diagram of the crushing mechanism of this utility model; Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle; In the diagram: 1. Screw conveyor cylinder; 2. Crushing box; 3. Connecting assembly; 31. Disassembly / assembly mechanism; 311. Mounting slot; 312. Inspection hole; 313. Mounting plate; 314. Slot; 315. First slide groove; 316. First slide rod; 317. First slider; 318. First spring; 319. Limiting rod; 3110. Locking rod; 3111. Second spring; 3112. First rotating shaft; 3113. Screw conveyor blade; 3114. 3115 Driven wheel; 3116 Driven wheel; 32 Crushing mechanism; 321 Motor; 322 Second rotating shaft; 323 Crushing roller; 324 Pressing rod; 325 Gear; 326 Connecting plate; 327 Top rod; 328 Second slide groove; 329 Second slide bar; 3210 Second slider; 3211 Third spring; 3212 Connecting rod; 3213 Mounting sleeve; 3214 Inclined pressing block. Detailed Implementation

[0015] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0016] Example 1

[0017] like Figures 1-5 As shown, this utility model provides a technical solution: an automated fuel feeding device for a coal-fired boiler, including a screw conveyor 1, a crushing box 2 installed on the upper part of the screw conveyor 1, and a connecting assembly 3 disposed between the screw conveyor 1 and the crushing box 2. The connecting assembly 3 includes a disassembly and assembly mechanism 31 disposed on one side of the screw conveyor 1. A crushing mechanism 32 is disposed inside the crushing box 2. The bottom of the crushing box 2 is connected to the screw conveyor 1. A feeding hopper is installed on the top of the crushing box 2. The disassembly and assembly mechanism 31 includes an installation groove 311 opened at the front of the screw conveyor 1. An inspection hole 312 is opened on the inner wall of the installation groove 311. An installation plate 313 is placed on the inner wall of the installation groove 311. A slot 314 is opened at the front of the installation plate 313. A first sliding groove 315 is opened at the front of the screw conveyor 1. A first sliding rod 316 is fixedly connected to the inner wall of the groove 315. A first slider 317 is slidably connected to the outer wall of the first sliding rod 316. A first spring 318 is fixedly connected to the inner wall of the first groove 315. A limit rod 319 is fixedly connected to the outer side of the first slider 317. A locking rod 3110 is movably connected to one end of the limit rod 319. A pull rod is fixedly connected to the outer end of the locking rod 3110. A second spring 3111 is fixedly connected to the outer side of the limit rod 319. A first rotating shaft 3112 is rotatably connected to the inside of the spiral conveyor cylinder 1 through a bearing. A spiral conveying blade 3113 is fixedly connected to the outer wall of the first rotating shaft 3112. A driven wheel 3114 is fixedly connected to the right end of the first rotating shaft 3112. A transmission belt 3115 is rotatably connected to the driven wheel 3114. A driving wheel 3116 is rotatably connected to the upper part of the transmission belt 3115.

[0018] In this embodiment, one end of the first spring 318 is fixedly connected to the first slider 317, the inner side of the limiting rod 319 is fitted against the outer side of the mounting plate 313, the snap-fit ​​rod 3110 is snapped into the slot 314, and the outer end of the second spring 3111 is fixedly connected to the pull rod. Through the cooperation of the mounting slot 311, the inspection hole 312, the mounting plate 313, the slot 314, the first sliding groove 315, the disassembly and assembly mechanism 31, the first slider 317, the first spring 318, the limiting rod 319, the snap-fit ​​rod 3110, and the second spring 3111, it is convenient for manual disassembly of the mounting plate 313, thereby facilitating manual unblocking of the inside of the spiral conveyor cylinder 1 through the inspection hole 312, which can prevent blockage during the material conveying process of the spiral conveyor cylinder 1 and affect subsequent use.

[0019] Furthermore, the drive wheel 3116 is fixedly connected to the right end of the second rotating shaft 322.

[0020] When the mounting plate 313 needs to be disassembled, simply pull the lever outward by holding the pull rod to separate the locking rod 3110 from the locking groove 314. Then, under the action of the elastic force of the first spring 318, the first slider 317 can slide in the first slide groove 315 through the first slide rod 316. This allows the limiting rod 319, which is fixedly connected to the outside of the first slider 317, to move away from the outside of the mounting plate 313, freeing the operator's hands from constantly supporting the pull rod. The mounting plate 313 can then be removed manually, facilitating the unblocking operation of the spiral conveyor cylinder 1 through the inspection hole 312. When the second rotating shaft 322 rotates, the first rotating shaft 3112 can rotate synchronously under the action of the driving wheel 3116, the driven wheel 3114, and the transmission belt 3115. This allows the spiral conveying blades 3113, which are fixedly connected to the outer wall of the first rotating shaft 3112, to rotate synchronously, thereby enabling the fuel conveying operation.

[0021] Example 2

[0022] Based on Embodiment 1, a preferred embodiment of the automated fuel feeding device for a coal-fired boiler provided by this utility model is as follows: Figures 1 to 5As shown: The crushing mechanism 32 includes a motor 321 fixedly mounted on the left side of the crushing box 2 via a base. A second rotating shaft 322 is fixedly connected to the output end of the motor 321. A crushing roller 323 is fixedly connected to the outer wall of the second rotating shaft 322. A pressing rod 324 is fixedly connected to the outer wall of the second rotating shaft 322. A gear 325 is fixedly connected to the outer wall of the outer end of the second rotating shaft 322. A second sliding groove 328 is opened on the inner wall of the crushing box 2. A second sliding rod 329 is fixedly connected to the inner wall of the second sliding groove 328. A second slider 3210 is slidably connected to the outer wall of the second slide groove 328. A third spring 3211 is fixedly connected to the inner wall of the second slide groove 328. A connecting rod 3212 is fixedly connected to the outer side of the second slider 3210. A connecting plate 326 is fixedly connected to the end of the connecting rod 3212 away from the second slider 3210. A top rod 327 is fixedly installed on the upper part of the connecting plate 326. An installation sleeve 3213 is fixedly connected to the outer wall of the connecting rod 3212. An inclined pressing block 3214 is fixedly installed at the bottom of the installation sleeve 3213 through a fixing column.

[0023] In this embodiment, the second rotating shaft 322 is rotatably connected to the crushing box 2 via bearings. There are two gears 325, two rotating shafts 322, and two crushing rollers 323, and the two gears 325 are meshed together. Through the cooperation of the motor 321, the second rotating shaft 322, the crushing roller 323, the pressing rod 324, the gears 325, the connecting plate 326, the top rod 327, the second sliding groove 328, the second sliding rod 329, the second slider 3210, the third spring 3211, the connecting rod 3212, the mounting sleeve 3213, and the inclined pressing block 3214, the material can be crushed, which makes it easier for the subsequent feeding trough. Furthermore, the reciprocating motion of the top rod 327 can prevent the material from accumulating in the hopper at the top of the crushing box 2, increasing the applicability of the device.

[0024] Furthermore, one end of the third spring 3211 is fixedly connected to the second slider 3210.

[0025] When conveying fuel, the fuel is first manually added to the crushing box 2 from the feed hopper at the top. Then, the motor 321 drives the second rotating shaft 322 to rotate. Due to the meshing of two gears 325, the crushing roller 323, which is fixedly connected to the outer wall of the second rotating shaft 322, can rotate, thus crushing the fuel. This prevents the fuel from being too large and affecting subsequent conveying operations. When the second rotating shaft 322 rotates, the pressure rod 324 rotates synchronously, allowing the pressure rod 324 to press against the inclined pressure block 3214. Then, under the limiting action of the second sliding rod 329 and the second slider 3210, the connecting rod 3212 and the mounting sleeve 3213 can move upward. Then, under the action of the elastic force of the third spring 3211, the connecting plate 326, which is fixedly connected to one end of the connecting rod 3212, drives the top rod 327 to move up and down reciprocally, thus preventing material from accumulating in the feed hopper and affecting the normal use of the device.

[0026] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automated fuel feeding device for a coal-fired boiler, comprising a screw conveyor (1); A crushing box (2) is installed on the upper part of the screw conveyor (1); And a connecting assembly (3) disposed between the screw conveyor (1) and the crushing box (2), characterized in that: The connecting assembly (3) includes a disassembly and assembly mechanism (31) disposed on one side of the spiral conveyor (1), a crushing mechanism (32) is disposed inside the crushing box (2), the bottom of the crushing box (2) is connected to the spiral conveyor (1), and a feed hopper is installed on the top of the crushing box (2).

2. The automated fuel feeding device for a coal-fired boiler according to claim 1, characterized in that: The disassembly and assembly mechanism (31) includes an installation groove (311) at the front of the spiral conveyor cylinder (1), an inspection hole (312) on the inner wall of the installation groove (311), an installation plate (313) placed on the inner wall of the installation groove (311), a slot (314) at the front of the installation plate (313), a first sliding groove (315) at the front of the spiral conveyor cylinder (1), a first sliding rod (316) fixedly connected to the inner wall of the first sliding groove (315), a first slider (317) slidably connected to the outer wall of the first sliding rod (316), a first spring (318) fixedly connected to the inner wall of the first sliding groove (315), and a first slider (317) fixedly connected to the outer side of the first slider (317). A limiting rod (319) is provided, one end of which is movably connected to a snap-fit ​​rod (3110). A pull rod is fixedly connected to the outer end of the snap-fit ​​rod (3110). A second spring (3111) is fixedly connected to the outer side of the limiting rod (319). A first rotating shaft (3112) is rotatably connected inside the spiral conveying cylinder (1) via a bearing. A spiral conveying blade (3113) is fixedly connected to the outer wall of the first rotating shaft (3112). A driven wheel (3114) is fixedly connected to the right end of the first rotating shaft (3112). A transmission belt (3115) is rotatably connected to the driven wheel (3114). A drive wheel (3116) is rotatably connected to the upper part of the transmission belt (3115).

3. The automated fuel feeding device for a coal-fired boiler according to claim 1, characterized in that: The crushing mechanism (32) includes a motor (321) fixedly mounted on the left side of the crushing box (2) via a base. A second rotating shaft (322) is fixedly connected to the output end of the motor (321). A crushing roller (323) is fixedly connected to the outer wall of the second rotating shaft (322). A pressing rod (324) is fixedly connected to the outer wall of the second rotating shaft (322). A gear (325) is fixedly connected to the outer wall of the outer end of the second rotating shaft (322). A second sliding groove (328) is provided on the inner wall of the crushing box (2). A second sliding rod (329) is fixedly connected to the inner wall of the second sliding groove (328). 29) A second slider (3210) is slidably connected to the outer wall. A third spring (3211) is fixedly connected to the inner wall of the second slide groove (328). A connecting rod (3212) is fixedly connected to the outer side of the second slider (3210). A connecting plate (326) is fixedly connected to the end of the connecting rod (3212) away from the second slider (3210). A top rod (327) is fixedly installed on the upper part of the connecting plate (326). An installation sleeve (3213) is fixedly connected to the outer wall of the connecting rod (3212). An inclined pressing block (3214) is fixedly installed at the bottom of the installation sleeve (3213) through a fixing column.

4. The automated fuel feeding device for a coal-fired boiler according to claim 2, characterized in that: One end of the first spring (318) is fixedly connected to the first slider (317), the inner side of the limiting rod (319) is fitted to the outer side of the mounting plate (313), the snap-fit ​​rod (3110) is snapped into the slot (314), and the outer end of the second spring (3111) is fixedly connected to the pull rod.

5. The automated fuel feeding device for a coal-fired boiler according to claim 2, characterized in that: The drive wheel (3116) is fixedly connected to the right end of the second rotating shaft (322).

6. The automated fuel feeding device for a coal-fired boiler according to claim 3, characterized in that: The second rotating shaft (322) is rotatably connected to the crushing box (2) through a bearing. There are two gears (325) on the second rotating shaft (322) and two crushing rollers (323), and the two gears (325) are meshed.

7. The automated fuel feeding device for a coal-fired boiler according to claim 3, characterized in that: One end of the third spring (3211) is fixedly connected to the second slider (3210).

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