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Automatic control method and device for straw pyrolysis gasification

A technology of pyrolysis gasification and straw, which is applied in the direction of gasification device feeding tools, gasification process, and production of combustible gas. Effects of cost and operational difficulty

Inactive Publication Date: 2021-08-06
一重集团(黑龙江)重工有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a large agricultural country, the recycling rate of straw in China is currently low, resulting in a great waste of resources and environmental pollution. It is an urgent need to explore more convenient and effective crop straw utilization technologies.
Although the technology of pyrolysis and gasification is relatively mature, the efficiency is not high, and the labor cost and operation difficulty are relatively large, which cannot meet the current demand.

Method used

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  • Automatic control method and device for straw pyrolysis gasification
  • Automatic control method and device for straw pyrolysis gasification
  • Automatic control method and device for straw pyrolysis gasification

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Embodiment Construction

[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0040] Firstly, the straw pyrolysis gasification equipment in the present invention is introduced.

[0041] Such as Figure 4 , Straw pyrolysis gasification equipment includes: hydraulic feeding system, beak feeding system, feeding belt, crusher, flue gas fan, flue gas cyclone dust collector, reaction kettle, discharge pipe, slag outlet, furnace, chain Grate furnace, combustion-supporting fan, reactor main drive motor, chain drive motor, chain slag discharger, ash packing system, booster fan, gas induced draft fan, gas cyclone dust collector, ash discharge motor, electric tar catcher, double Membrane gas storage cabinets, release pipe valves, heat exchangers, spray cooling purification systems and intercooling heat exchange systems, gas g...

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Abstract

The invention provides an automatic control method and device for straw pyrolysis gasification. The automatic control method and device are applied to straw pyrolysis gasification equipment. The straw pyrolysis gasification equipment comprises a feeding system, and the automatic control method for straw pyrolysis gasification comprises the steps that after straw pyrolysis gasification equipment is powered on, an ignition step and a hearth heating step are sequentially executed; a hearth temperature is obtained; and when the hearth temperature reaches a preset feeding temperature interval for the first time, an automatic feeding step is executed to start the feeding system, the feeding speed is controlled, and the heat balance of the system is maintained by carbon residues discharged from a residue discharging opening of the reaction kettle. The automatic control method is applied to the straw pyrolysis and gasification equipment, so that the straw pyrolysis and gasification equipment can complete automatic starting, automatic stopping and automatic production control, and the labor cost and the operation difficulty are reduced.

Description

technical field [0001] The invention relates to the technical field of automatic control, in particular to an automatic control method and device for straw pyrolysis and gasification. Background technique [0002] Every year on the earth, a large amount of straw, woody and other biomass is produced, most of which have not been well utilized. Every year during the grain harvest season, random burning of straw occurs, causing great pollution to the atmospheric environment. On the other hand, there are a large number of coal-fired boilers burning coal, and the exhaust gas often does not meet the requirements, which will pollute the atmosphere and aggravate the severity of smog. If a large amount of straw can be fully utilized for energy to partially replace coal burning, it will not only reduce the random burning of straw but also reduce the use of coal, realize the transformation of straw into treasure and promote the improvement of the atmospheric environment. [0003] Nowad...

Claims

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Application Information

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IPC IPC(8): C10J3/72C10J3/84
CPCC10J3/72C10J3/723C10J3/726C10J3/728C10J3/84C10J2200/15C10J2300/0916C10J2300/0956C10J2300/1223
Inventor 兰帅陈思刘钊齐晓宾雷宝龙王志友王志宇
Owner 一重集团(黑龙江)重工有限公司
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