Constantly-uniform distributor for coal crusher of coal conveying system in heat-engine plant

Abstract

The invention discloses a constantly-uniform distributor for a coal crusher of a coal conveying system in a heat-engine plant, which belongs to the field of machinery, is used for supplying coal to the coal crusher and overcomes the defects of damage to coal conveying equipment and combustion equipment or waste of equipment materials and labor force caused by non-uniform wear of a hammer head of the coal crusher in the prior art. The constantly-uniform distributor comprises a material storage box, a material balancing box, material balancing rotors, a material balancing rotor drive motor and an intelligent material stack height control mechanism, wherein the material balancing box is connected to the lower end of the material storage box; the material balancing rotors of which the two ends are arranged on a box body through bearings and the circumferential surfaces are provided with switch-plates are arranged in the material balancing box; a material position sensor which consists of a rigid float ball, a lever and an inductive element on the outer end part of a lever box are arranged on the material storage box; and the intelligent material stack height control mechanism consists of the material position sensor and a signal processing circuit. The invention has the advantages that: the problem of non-uniform blanking on the rotor of the conventional coal crusher is solved; a material stack on the material storage box is kept at an appropriate height; coal passing through the distributor is non-sticky, blocking-resistant and sticking-resistant; and the constantly-uniform distributor is the optimal material balancing device for the coal crusher.

Description

technical field [0001] The invention belongs to the field of machinery, and in particular relates to a bulk material transmission device. Background technique [0002] In power plants using fluidized bed coal-fired boilers, fine coal crushers are required in the coal processing equipment of the coal handling system. The existing coal crusher is composed of a closed casing, a rotor installed and seated on the inner surface of the casing to distribute hammers, a counterattack plate corresponding to the surface of the rotor in the casing, a feed hopper and a discharge port on the casing. The outstanding problem of the previous coal crusher is that the coal entering the shell is unevenly distributed on the rotor, which leads to uneven wear of the hammer head, and premature formation of coal hammering holes locally. If the hammer head is not replaced in time , the pulverized fine coal will be mixed with large particles that do not meet the combustion requirements. If the hammer...

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Problems solved by technology

[0003] The object of the present invention is to provide a constant uniform distributor for the coal crusher in the coal handling system of the thermal power plant, which is used to supply coal to the coal crusher and overcome the existing The uneven wear of the hammerhead in the coal crusher will cause harm to coal handling equipment and combustion equipment or the disadvantage of wasting equipment materials and labor

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