Cement stable sampling device and method

Abstract

The invention relates to the field of industrial equipment, and discloses a stable cement sampling device and method. The sampling device comprises a sampling execution system, a sampling control system and a distributed control system. The sampling execution system is responsible for completing specific blanking or sampling actions. The control parameters of blanking and sampling processes can be set in the sampling control system. The air pressure in the sampling process and the weight of the taken sample are monitored, and then a specific control instruction is sent to the sampling execution system; the distributed control system supports remote setting of blanking and sampling parameters and monitoring of blanking and sampling processes, and through the sampling method, operators can set and adjust the blanking parameters on site or in a central control room, monitor the blanking and sampling processes in real time and automatically execute blanking and sampling actions, so that the labor intensity of the operators is reduced.

Description

technical field [0001] The invention relates to the field of industrial equipment, in particular to a cement stabilization sampling device and method. Background technique [0002] As an important cementitious material, cement is widely used in construction, bridge, water conservancy and other projects, and its quality reliability and stability are of great value. When an enterprise produces cement, laboratory analysts usually take a sample of the incoming cement every hour to test its specific surface area, sieve residue, CaO content, SO 3 content and other indicators, and inform the operator in the central control room of the test results. The operator in the central control room compares the difference between the test result and the cement quality standard, and adjusts the process control parameters of the cement currently being produced in the distributed control system, so as to complete the closed-loop control and ensure that the quality of the cement produced at the...

AI Technical Summary

Problems solved by technology

Affected by many factors, the fluidity of the material layer in the discharge chute is not stable during cement production, so the amount of cement material reamed by the spiral reamer changes within the same time; in addition, if the dust collection fan speed changes rapidly If it is too large, or because the laboratory analyst did not press the cylinder and the upper cover tightly when taking samples, the negative pressure of the gas between the discharge chute and the cylinder is unstable, and a larger negative pressure will cause the cement sample to be damaged. The fine particles in the cement are pumped away, which also makes the amount of sample material unstable, and the cement samples taken are not representative

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