Batch-type slag tapping control system for boiler capable of preventing dust raising and control method

Abstract

The invention discloses a batch-type slag tapping control system for a boiler capable of preventing dust raising and a control method. The control system comprises a grate vibration switch, a slag crusher, a grate and slag crusher interlocked automatic switch, a pneumatic buffer slag discharger and a slag crusher and pneumatic buffer slag discharger interlocked automatic switch. The slag crusher is connected with a frequency converter to control start and stop of the slag crusher; when the frequency converter is electrified, the slag crusher is turned on; when the frequency converter is powered off, the slag crusher stops running; the slag crusher interlock automatic switch is capable of automatically collecting an electric signal when the grate vibrates and controlling turn-on of the slagcrusher; the output end of the slag crusher and pneumatic buffer slag discharger interlock automatic switch is connected with the pneumatic buffer slag discharger; and the slag crusher and the pneumatic buffer slag discharger interlock automatic switch is capable of automatically collecting a power-off signal of the slag crusher and the frequency converter and enabling a slag discharging plate inthe pneumatic buffer slag discharger to open. According to the control system disclosed by the invention, electricity and water resources can be saved on the premise of preventing dust raising and air leakage, the service life of the whole equipment is prolonged, the equipment failure rate is reduced, and the boiler efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of biomass boilers, in particular to a boiler intermittent slagging control system and control method capable of preventing dust. Background technique [0002] At present, the slag removal methods of biomass boilers mainly include water-cooled slag removal system, scraper slag removal system, and manual slag removal. Most of them have difficulties in removing stuck foreign matter, waste of energy (electricity, water), and air leakage at the bottom of the furnace. Ash leakage causes flying dust, wet ash and slag to adhere to the surface of the equipment. It not only causes boilers to reduce efficiency; it also causes waste of resources, environmental pollution, and is not conducive to the comprehensive utilization of biomass slag. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an intermittent slagging control system for boilers that can prevent ...

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Problems solved by technology

[0002] At present, the slag removal methods of biomass boilers mainly include water-cooled slag removal system, scraper slag removal system, and manual slag removal. Most of them have difficulties in removing stuck foreign matter, waste of energy (electricity, water), and air leakage at the bottom of the furnace. Ash leakage leads to dust, wet ash and slag adhering to the surface of the equipment

It not only reduces the efficiency of the boiler, but also causes waste of resources, environmental pollution, and is not conducive to the comprehensive utilization of biomass slag, etc.

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