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CN-224215323-U - Material adding system for circulating fluidized bed boiler

CN224215323UCN 224215323 UCN224215323 UCN 224215323UCN-224215323-U

Abstract

The utility model discloses a material adding system for a circulating fluidized bed boiler, which belongs to the technical field of circulating fluidized bed boilers and comprises a fluidized bed boiler unit, wherein two hoppers are arranged on one side of the fluidized bed boiler unit, a feeding box is arranged below the hoppers, a feeding cleaning assembly is arranged in the feeding box, the feeding cleaning assembly comprises a connecting shaft, and a crushing assembly is arranged in the connecting shaft. According to the utility model, the connecting shaft drives the roller to move on the outer surfaces of the circular shaft and the convex blocks, and at the moment, the convex blocks drive the roller, the connecting rod and the vibrating block to move to the outer side far away from the connecting shaft, so that the materials between the spiral conveying blades and the feeding box are subjected to auxiliary crushing, and the large materials are crushed into smaller particles, so that the particle size of the materials is more uniform, the phenomenon of incomplete local combustion or unstable fluidization state caused by uneven particle size is reduced, and the material adding effect of the system is effectively improved.

Inventors

  • Zhou Taiyang
  • HU JUN

Assignees

  • 连云港虹洋热电有限公司

Dates

Publication Date
20260508
Application Date
20250528

Claims (8)

  1. 1. The material adding system for the circulating fluidized bed boiler comprises a fluidized bed boiler unit (1) and is characterized in that two hoppers (2) are arranged on one side of the fluidized bed boiler unit (1), a feeding box (3) is arranged below the hoppers (2), a feeding cleaning component (4) is arranged inside the feeding box (3), the feeding cleaning component (4) comprises a connecting shaft (405), and a crushing component (5) is arranged inside the connecting shaft (405); crushing subassembly (5) are including circle axle (502) and inner chamber (501), the outer Zhou Cexian nature array of circle axle (502) has multiunit lug (503), multiunit lug (503) are circumference array distribution in circle axle (502) periphery side, circle axle (502) one side is kept away from to lug (503) is provided with gyro wheel (504), lug (503) one side fixedly connected with connecting rod (505) are kept away from to gyro wheel (504), connecting rod (505) other end extends to connecting axle (405) outside and fixedly connected with vibrating piece (506), vibrating piece (506) sliding seal is inside connecting axle (405).
  2. 2. A material feeding system for a circulating fluidized bed boiler according to claim 1, wherein the circular shaft (502) is arranged in the inner cavity (501), the inner cavity (501) is arranged in the connecting shaft (405), the circular shaft (502) is rotatably connected in the connecting shaft (405), and one end of the circular shaft (502) extends to the outer side of the connecting shaft (405) and is fixedly connected with the inner wall of the feeding box (3).
  3. 3. The material adding system for the circulating fluidized bed boiler of claim 2, wherein springs (507) are sleeved on the outer peripheral side of the connecting rod (505), and two sides of each spring (507) are fixedly connected with the roller (504) and the inner wall of the connecting shaft (405) respectively.
  4. 4. A material adding system for a circulating fluidized bed boiler according to claim 3, wherein a cavity and a circular through hole are formed in one side of the inside of the connecting shaft (405), the circular through hole and the cavity are communicated with the fixed sleeve (6), an air conveying pipe (7) is communicated with one side of the outside of the fixed sleeve (6), the fixed sleeve (6) is rotatably connected to the peripheral side of the connecting shaft (405), and one side of the fixed sleeve (6) is fixedly connected with the outer wall of the feeding box (3).
  5. 5. A material feeding system for a circulating fluidized bed boiler according to claim 4, wherein the connecting shaft (405) is rotatably connected inside the feeding box (3), a screw conveying blade (406) is fixedly connected to the outer peripheral side of the connecting shaft (405), and the screw conveying blade (406) is arranged inside the feeding box (3).
  6. 6. The material adding system for the circulating fluidized bed boiler of claim 5, wherein a second gear (404) is fixedly connected to one side of the outer portion of the connecting shaft (405), the second gear (404) is arranged on the outer side of the feeding box (3), a first gear (403) is connected to one side of the second gear (404), and a rotating shaft (402) is fixedly connected to the inner portion of the first gear (403).
  7. 7. The material adding system for the circulating fluidized bed boiler of claim 6, wherein the rotating shaft (402) is rotatably connected to the outer peripheral side of the feeding box (3), one end, away from the first gear (403), of the rotating shaft (402) is fixedly connected with the driving motor (401), and the bottom of the driving motor (401) is fixedly connected with the outer wall of the feeding box (3) through a supporting seat.
  8. 8. The material adding system for the circulating fluidized bed boiler of claim 7, wherein one side of the outer portion of the connecting shaft (405) is fixedly connected with a connecting sleeve (407), the connecting sleeve (407) is arranged at one side far away from the second gear (404), two sides of the outer periphery of the connecting sleeve (407) are fixedly connected with connecting blocks (408), the other side of each connecting block (408) is fixedly connected with cleaning blocks (409), the cleaning blocks (409) are attached to the inner wall of the feeding box (3), one side of each cleaning block (409) far away from each connecting block (408) is fixedly connected with a round frame (410), connecting holes are formed in the joint of the round frames (410) and the connecting shaft (405), the other side of each connecting hole is communicated with a cavity in the connecting shaft (405), and one side of each round frame (410) is communicated with a plurality of air outlets which are arranged at one side of the corresponding cleaning block (409).

Description

Material adding system for circulating fluidized bed boiler Technical Field The utility model belongs to the technical field of circulating fluidized bed boilers, and particularly relates to a material adding system for a circulating fluidized bed boiler. Background The circulating fluidized bed boiler is a high-efficiency low-pollution clean combustion device, is widely applied to the fields of power station boilers, industrial boilers, waste treatment and utilization and the like, and needs to uniformly convey materials into the circulating fluidized bed boiler through a feeding system in order to ensure stable combustion and use effects of the circulating fluidized bed boiler. The feeding device comprises a feeding pipe, a sealing cover is arranged at the top end of the feeding pipe, a feeding pipe communicated with the inside of the feeding pipe is arranged below the sealing cover and on the side wall of the feeding pipe, and a conveying pipe, a first end of the conveying pipe is communicated with a hearth inlet of the boiler, a second end of the conveying pipe opposite to the first end is used for feeding conveying air, the bottom end of the conveying pipe is communicated with the conveying pipe and is positioned between the first end and the second end, so that multi-substance fuel is blown to the hearth inlet through the conveying air after falling from the feeding pipe to the conveying pipe, and therefore, the multi-substance fuel is blown to the hearth inlet of the boiler through the conveying air inlet in the conveying pipe, wind pressure is formed at the hearth inlet, hot air in the hearth is prevented from flowing back towards the direction of the conveying mechanism through the hearth inlet, and the fuel is prevented from being reversely combusted along the conveying direction, so that the feeding device can efficiently and safely feed the multi-substance fuel into the boiler, but the feeding system can be fully improved in the use process, the feeding pipe is accumulated inside the conveying pipe, the boiler can be heated, and the material can not be fully combusted, and the feeding pipe can be fully combusted after the boiler. Disclosure of utility model The utility model aims to solve the problems that in the prior art, when materials are accumulated and conveyed into a feeding pipe from the feeding pipe in a concentrated manner, the materials possibly accumulate into blocks, and at the moment, insufficient combustion of the materials possibly occurs after the materials enter a boiler, and the heating efficiency of the boiler is influenced. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The material adding system for the circulating fluidized bed boiler comprises a fluidized bed boiler unit, wherein two hoppers are arranged on one side of the fluidized bed boiler unit, a feeding box is arranged below the hoppers, a feeding cleaning assembly is arranged inside the feeding box, the feeding cleaning assembly comprises a connecting shaft, and a crushing assembly is arranged inside the connecting shaft; The crushing assembly comprises a circular shaft and an inner cavity, a plurality of groups of protruding blocks are arranged on the outer Zhou Cexian linear array of the circular shaft, the plurality of groups of protruding blocks are distributed on the outer periphery side of the circular shaft in a circumferential array mode, a roller is arranged on one side, away from the circular shaft, of each protruding block, a connecting rod is fixedly connected to one side, away from the protruding block, of each roller, the other end of each connecting rod extends to the outer side of the connecting shaft and is fixedly connected with a vibrating block, and the vibrating block is sealed inside the connecting shaft in a sliding mode. As a further description of the above technical solution: The circular shaft is arranged inside the inner cavity, the inner cavity is arranged inside the connecting shaft, the circular shaft is rotationally connected inside the connecting shaft, and one end of the circular shaft extends to the outer side of the connecting shaft and is fixedly connected with the inner wall of the feeding box. As a further description of the above technical solution: the connecting rod periphery side cover is equipped with the spring, spring both sides respectively with gyro wheel and connecting axle inner wall fixed connection. As a further description of the above technical solution: The utility model discloses a feeding box, including connecting axle, fixed cover, cavity and circular through-hole have been seted up to inside one side of connecting axle, circular through-hole and cavity are linked together with fixed cover, fixed cover outside one side intercommunication has the air duct, fixed cover rotates to be connected in the connecting axle periphery side, and fixed cover one side and feeding box outer wall fixed connection. As a