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CN-224202797-U - Coal sampling probe of thermal power plant

CN224202797UCN 224202797 UCN224202797 UCN 224202797UCN-224202797-U

Abstract

The utility model relates to the technical field of coal sampling devices, in particular to a coal sampling probe of a thermal power plant, which comprises a sampling assembly, a switch assembly, a crushing assembly and a switch assembly, wherein the sampling assembly comprises a sampling tube with a storage cavity inside, a sampling port communicated with the storage cavity is arranged at the wall of the sampling tube, a handle is arranged at the rear end of the sampling tube, the switch assembly is inserted into the sampling tube and used for controlling the sampling port, the crushing assembly is rotatably arranged at the front end of the sampling tube and used for breaking accumulated coal blocks on an insertion path, the sampling tube can be easily inserted into a coal bed for sampling operation, the structure is simple, the improvement of the sampling efficiency of coal is facilitated, the switch assembly is arranged, the isolation effect can be realized in the process of inserting and extracting the coal layer of a coal pile by the sampling tube, the sampling operation of coal with different depths can be conveniently carried out, and the whole quality of the coal can be better detected.

Inventors

  • ZHANG JIAQI
  • XU SHENGGANG

Assignees

  • 华电国际电力股份有限公司奉节发电厂

Dates

Publication Date
20260505
Application Date
20250507

Claims (6)

  1. 1. A coal sampling probe of a thermal power plant is characterized by comprising: The sampling assembly (1) comprises a sampling tube (11) with a storage cavity (14) inside, a sampling port (12) communicated with the storage cavity (14) is arranged at the tube wall of the sampling tube (11), and a grip (15) is arranged at the rear end of the sampling tube (11); the switch assembly (2) is inserted into the sampling tube (11) and is used for controlling the sampling port (12); and the crushing assembly (3) is rotatably arranged at the front end of the sampling tube (11) and is used for breaking up the accumulated coal blocks on the insertion path.
  2. 2. The thermal power plant coal sampling probe according to claim 1, wherein a chute (13) is arranged in the sampling tube (11) and positioned at the sampling port (12), the switch assembly (2) comprises a movable plate (21) inserted in the chute (13), and a feed port (22) corresponding to the storage cavity (14) is arranged on the movable plate (21); a handle (23) is arranged on the outer side of the rear end of the moving plate (21), and the inner side of the rear end of the moving plate (21) is arranged on the rear end of the sampling tube (11) through a return spring (24).
  3. 3. The thermal power plant coal sampling probe according to claim 1, wherein the crushing assembly (3) comprises a conical head (31) with crushing teeth (32) arranged on the surface, a rotating rod (33) is arranged at the axis of the conical head (31), and the rotating rod (33) is rotatably arranged in the sampling tube (11).
  4. 4. The thermal power plant coal sampling probe according to claim 3, wherein the other end of the rotating rod (33) is fixedly connected with a rotating disc (34), and the rotating disc (34) is provided with an eccentrically arranged rotating handle (35).
  5. 5. The thermal power plant coal sampling probe according to claim 4, wherein the front end of the sampling tube (11) is provided with a ring groove (17), and the bottom surface of the conical head (31) is provided with a slip ring (36) which is rotatably arranged in the ring groove (17).
  6. 6. The thermal power plant coal sampling probe according to claim 1, wherein the sampling tube (11) is provided with graduation marks (18) for reading the insertion depth.

Description

Coal sampling probe of thermal power plant Technical Field The utility model relates to the technical field of coal sampling devices, in particular to a coal sampling probe of a thermal power plant. Background In an energy supply system of a thermal power plant, coal is used as core fuel, quality parameters of the coal play a decisive role in controlling the combustion efficiency of a boiler, the power generation cost and the pollutant emission reduction effect, accurate and efficient coal quality detection is a key link for guaranteeing safe and stable operation of the thermal power plant and realizing balance of economic benefit and environmental benefit, and along with continuous increase of installed capacity of the thermal power plant and increasing diversification of coal purchasing sources, a coal quality detection technology faces new challenges of increasing sample complexity, improving detection timeliness and the like, and higher requirements are provided for the performance of sampling equipment. The sampling quality in the traditional thermal power plant coal quality detection flow directly influences the reliability of a subsequent analysis result, at present, a sampling tube is commonly used for sampling in a coal bed, but coal materials are often mixed with broken stone particles with larger particle sizes, the hard impurities not only prevent the sampling tube from penetrating into the coal bed, but also cause frequent clamping of the sampling tube, operators need to consume a great amount of physical effort to repeatedly operate, the sampling time is greatly prolonged, meanwhile, equipment abrasion is possibly caused by forcibly inserting the sampling tube, the service life of a sampling probe is reduced, and the maintenance cost is increased. In summary, because the sampling depth is limited, the obtained sample is difficult to represent the whole quality of coal, so that deviation of the detection result is easy to occur, and the problems severely restrict the efficiency and accuracy of the detection of the coal quality of the thermal power plant. Disclosure of utility model The utility model aims to solve the defects in the background art and provides a coal sampling probe of a thermal power plant. In order to solve the technical problems, the utility model adopts the following technical scheme: a thermal power plant coal sampling probe, comprising: The sampling assembly comprises a sampling tube with a storage cavity inside, a sampling port communicated with the storage cavity is arranged at the wall of the sampling tube, and a handle is arranged at the rear end of the sampling tube; The switch component is inserted into the sampling tube and used for controlling the sampling port; and the crushing assembly is rotatably arranged at the front end of the sampling tube and is used for breaking the accumulated coal blocks on the insertion path. Preferably, a chute is arranged in the sampling tube at the sampling port, the switch assembly comprises a moving plate inserted in the chute, and a feeding port corresponding to the storage cavity is formed in the moving plate; The handle is arranged on the outer side of the rear end of the moving plate, and the inner side of the rear end of the moving plate is arranged at the rear end of the sampling tube through the reset spring. Preferably, the crushing assembly comprises a conical head with crushing teeth arranged on the surface, a rotating rod is arranged at the axis of the conical head, and the rotating rod is rotatably arranged in the sampling tube. Preferably, the other end of the rotating rod is fixedly connected with a rotating disc, and the rotating disc is provided with an eccentrically arranged rotating handle. Preferably, the front end of the sampling tube is provided with a ring groove, and the bottom surface of the conical head is provided with a slip ring which is rotatably arranged in the ring groove. Preferably, the sampling tube is provided with scale marks for reading the insertion depth. Compared with the prior art, the utility model has the beneficial effects that: 1. The coal sampling probe of the thermal power plant can enable the sampling tube to be easily inserted into the deep part of the coal seam to perform sampling operation, has a simple structure, and is beneficial to improving the sampling efficiency of coal; 2. Be equipped with switch module, can play isolated effect at the in-process that the sampling tube inserted and take out the coal seam, each layer coal matter in the coal pile of exploring that can be accurate, conveniently carry out the sampling operation to the coal of different degree of depth, be favorable to better detection coal overall quality. Drawings The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description ser