Automatic sampler for powder material

Abstract

The invention belongs to the technical field of thermal power plants and discloses a powder material automatic sampler, which comprises a trolley, wherein the trolley is driven by a motor to drive thewhole sampling assembly to move and adjust the position of the sampling head on a guide rail of the workbench; The sampling mechanism is arranged in the sampling assembly and driven by the chain wheel chain lifting mechanism to perform up and down sampling motion. The device provided by the invention is simple in structure, safe and convenient to operate, realizes the automation of the sampling of lime powder, avoids the inconvenience in manual operation, eliminates the potential safety hazard of manual operation, improves the sampling detection efficiency and is beneficial to the intelligentdevelopment of the factory.

Description

technical field [0001] The invention specifically relates to an automatic sampler for powder materials and belongs to the technical field of thermal power plants. Background technique [0002] The powder (powder material) sampler or sampler is suitable for solid powdery dry materials, using the principle of screw conveying or pneumatic conveying for sampling. Prior art is for powder sampling, as sampling such as lime powder, sulfur powder, grain, and most of them are manual samplers. The manual sampler is divided into a double-layer structure of inner and outer cylinders, and the sampler is sent into the powder conveying vehicle manually, and then the inner cylinder is rotated for sampling. [0003] Therefore there are following defects: [0004] 1) Lime powder used in thermal power plants is mainly used to solve the problem of harmful substances in flue gas emissions. The calcium carbonate content in lime powder must meet the design requirements (generally 80-90%). Power ...

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Problems solved by technology

[0004] 1) The use of lime powder in thermal power plants is mainly used to solve the problem of harmful substances in flue gas emissions. The calcium carbonate content in lime powder must meet the design requirements (generally 80-90%). Power plants need to sample and inspect the purchased lime powder , powder sampling in existing power plants requires manual sampling, which consumes manpower and material resources, and the sampling efficiency is low;

[0005] 2) Sample mixing problem of the powder sampler (not cleaned after the first sampling, resulting in impurities in the second sampling sample);

[0006] 3) Manual sampling cannot guarantee full-section sampling

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