Process flow of artificial board enterprise energy-saving emission reduction with corps stalk as energy resource

A technology for crop straw, energy saving and emission reduction, applied in the field of wood-based panel manufacturing, can solve the problems of rising production costs, environmental pollution, large emissions, etc., and achieve the effects of saving raw materials, protecting the environment, and reducing costs

Inactive Publication Date: 2009-05-13
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Coal prices are rising rapidly, CO 2 , NO X and SO 2 The large amount of emissions, etc., lead to increased production costs and prominent environmental pollution problems

Method used

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  • Process flow of artificial board enterprise energy-saving emission reduction with corps stalk as energy resource

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Experimental program
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Effect test

Embodiment 1

[0015] Example 1, crop stalks are taken as corn stalks with a moisture content of 20%; processed into unit scraps, using a grass cutter (model XW-1) and a straw grinder (model XW-2). Use straw micro particle granulator (model XW-3) to manufacture straw solid micro fuel: its density is 1.1g / cm 3 , Pellet fuel with a length of 10mm and a diameter of 6mm; the calorific value reaches 4500kcal / kg. Use straw solid micro-fuel to burn in the combustion reciprocating furnace (model XW-4); heat energy is converted into steam and heat through heat conversion devices (waste heat boiler (model XW-5), heat conduction oil furnace (model XW-6), etc.) oil and other heat supply medium; use steam to separate fibers through a thermal mill; or use hot oil to implement hot pressing of slabs through a hot press; high-temperature smoke generated by combustion furnaces and heat conversion devices (waste heat boilers, heat-conducting oil furnaces, etc.) Gas, also has a higher temperature and more heat...

Embodiment 2

[0016] Example 2, take the crop straw as the raw material of wheat straw with a moisture content of 15%; process it into unit scraps by using a grass cutter (model XW-1) and a straw grinder (model XW-2). Use straw micro particle granulator (model XW-3) to manufacture straw solid micro fuel: its density is 1.4g / cm 3 , Pellet fuel with a length of 30mm and a diameter of 8mm; the calorific value reaches 5000kcal / kg. Use straw solid micro-fuel to burn in the combustion reciprocating furnace (model XW-4); heat energy is converted into steam and heat through heat conversion devices (waste heat boiler (model XW-5), heat conduction oil furnace (model XW-6), etc.) oil and other heat supply medium; use steam to separate fibers through a thermal mill; or use hot oil to implement hot pressing of slabs through a hot press; high-temperature smoke generated by combustion furnaces and heat conversion devices (waste heat boilers, heat-conducting oil furnaces, etc.) Gas, also has a higher temp...

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Abstract

The invention relates to a process for saving energy and reducing emission for artificial board enterprises by taking crop stalks as energy, and the process is characterized in that the process steps comprise 1) preparing stalk raw materials; 2) unitizing stalks; 3) manufacturing stalk solid micro-fuel; 4) burning the stalk solid micro-fuel; 5) using a heat conversion and utilization device; 6) reusing waste heat; 7) and returning ash manure to field. The process has the advantages that: the process proposes to manufacture the solid micro-fuel by taking the crop stalks as the raw materials around the energy conservation and the emission reduction of the artificial board enterprises, the appraisal indicators of a stalk fuel combustion device are as follows: the combustion rate is not less than 95 percent and the thermal efficiency is not less than 85 percent, thereby replacing coal and waste wood; the process can realize the purposes of saving energy, saving raw materials, protecting environment and reducing cost under the premise of ensuring the normal production of the enterprises, thereby having an important practical significance for realizing the energy conservation and the emission reduction of the enterprises. Farmers can increase income by selling the crop stalks as the fuel. The product quality performance indexes are in line with the requirements in the China's medium density fiberboard standards.

Description

technical field [0001] The invention relates to an energy-saving and emission-reducing technological process for a wood-based panel enterprise using crop stalks as energy, and belongs to the technical field of wood-based panel manufacturing. technical background [0002] At present, there are two forms of energy supply for domestic wood-based panel enterprises (take medium-density fiberboard factories as an example): one uses coal as fuel, and the other uses wood waste as fuel. Coal prices are rising rapidly, CO 2 , NO X and SO 2 The large amount of emissions, etc., lead to increased production costs and prominent environmental pollution problems. At the same time, waste wood has been increasingly used as raw materials for wood-based panel production. The current situation of fuel and raw materials in wood-based panel enterprises forces us to develop a new energy system, using crop straw as energy raw material, adopting an efficient and reasonable energy conversion syste...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23K1/00F22B1/00F24H1/00B27N3/18C05F11/02
CPCY02E50/30Y02E50/10Y02A40/20Y02P20/10Y02P20/129Y02P70/10
Inventor 周定国叶敬言李良真王欣张洋侯晓佑孙军王志和梅长彤徐咏兰周晓燕徐信武杨骁丽
Owner NANJING FORESTRY UNIV
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