CN106281543A - A kind of sawdust based biomass granule of compound wheat stalk and preparation method thereof - Google Patents

Abstract

nullThe invention discloses the sawdust based biomass granule of a kind of compound wheat stalk，On the one hand sawdust carbonization is processed the most modified，Improve toughness and the density of DIC granule，The combustion heat value that improve sawdust carbon residue the volatile matter reducing in combustion process，The waste gas sulfur content of discharge is low，On the other hand，By wheat stalk、Herba setariae viridis grass、After oat shell carries out fermentation process，The structure sheaf changing raw material forms the organizational structure of densification，And form the organic material of high-load，Improve organic constituent，Again by modification Fluorspar Powder、Wood leftover material adds continuation fermentation process，Improve the combustible in organic matter material，Last other effective auxiliary agents of compatibility again are extruded，The sawdust based biomass granular fuel prepared is the cheapest energy in clean energy resource，And price steadiness、Calorific value is high、Supply is reliable，It is possible not only to evade the price fluctuation risk of fossil energy，Structural energy-saving benefit can also be realized.

Description

A kind of sawdust based biomass granule of compound wheat stalk and preparation method thereof

Technical field

The present invention relates to biomass fuel technical field, particularly relate to the sawdust based biomass of a kind of compound wheat stalk Grain and preparation method thereof.

Background technology

Along with mankind's increase day by day to energy demand, now widely used oil, coal, natural gas etc. are non-renewable The energy be faced with day by day exhausted problem.The energy crisis that will face to solve the mankind be necessary to develop reproducible newly The energy replaces non-renewable Fossil fuel.Biomass energy, as a kind of cheap, regenerative resource of cleaning, is the most more come More being paid close attention to by people widely, China is as large agricultural country, in the raw material supply of biomass energy, energy demand, government's political affairs The aspects such as the support of plan all have greater advantage.Sawdust, straw source is abundant, and with low cost, sawdust sulfur content is the lowest simultaneously, with it The biomass granule fuel substitute fossil fuels prepared for raw material, to preserving the ecological environment, Development of Social Economy, implementing the energy can Sustainable development strategy has major and immediate significance.But traditional biomass granule fuel utilizing sawdust straw to prepare exists Calorific value slagging scorification boiler low, easy uses dangerous, sulfur content to exceed standard many defects such as pollution environment, ash are big.

Summary of the invention

The object of the invention is contemplated to make up the defect of prior art, it is provided that the sawdust base of a kind of compound wheat stalk is biological Matter granule and preparation method thereof.

The present invention is achieved by the following technical solutions:

The sawdust based biomass granule of a kind of compound wheat stalk, is prepared by the raw materials in: sawdust 118-130, wood Edge corner material 20-23, wheat stalk 44-47, herba setariae viridis grass 35-37, oat shell 30-34, Rhizoma Solani tuber osi powder 14-16, fluorite 10-12, Hexamethylenamine 3.2-3.5, cocos nucifera oil acyl diethanolamine 4.3-4.7, barium nitrate 2-4, cerium oxide 3-5, suitable quantity of water.

The manufacture method of the sawdust based biomass granule of described a kind of compound wheat stalk, comprises the following steps:

(1) sawdust is put in retort at a temperature of 450-500 DEG C, isolation air carbonization 20-30 minute, it is cooled to room temperature Add cerium oxide abrasive 40-50 minute；

(2) being soaked 1-2 hour by fluorite 5-10wt% hydrochloric acid solution, washing, to neutral, adds water at 80-100 DEG C at ultrasound wave Managing 8-10 minute, then soak 1-2 hour with 8-12wt% sodium hydroxide solution, washing, to neutral, adds water ultrasonic at 80-100 DEG C Ripple processes 8-10 minute, is subsequently adding hexamethylenamine, the grinding of cocos nucifera oil acyl diethanolamine 20-30 minute, dries and prepare modified fluorite Powder；

(3) by wheat stalk, herba setariae viridis grass, oat shell with hot-water soak 10-12 hour of 60-70 DEG C, filter and put into fermentation vat In, control fermentation vat temperature is at 30-50 DEG C, and humidity is 50-60%, after fermentation process 20-30 hour, adds modified Fluorspar Powder, wood Edge corner material stirs continuation fermentation 10-20 days, is cooled to room temperature and puts into and be crushed to 60-80 mesh in pulverizer；

(4) by step (1), the mixing of (3) material stirring, adding suitable quantity of water and other residual components stirring and evenly mixing, feeding is squeezed into Type machine, is squeezed into a diameter of 5-8mm, the cylindrical particle of a length of 3-8cm with the briquetting pressure of 45MPa, is dried, discharging.

The invention have the advantage that present invention process simple operations is easy, on the one hand sawdust carbonization processed the most modified, Improve toughness and the density of DIC granule, the combustion heat value that improve sawdust carbon residue the volatilization reducing in combustion process Point, the waste gas sulfur content of discharge is low, on the other hand, after wheat stalk, herba setariae viridis grass, oat shell are carried out fermentation process, changes The structure sheaf of raw material forms the organizational structure of densification, and forms the organic material of high-load, improves organic matter and forms into Point, then modification Fluorspar Powder, wood leftover material are added continuation fermentation process, improve the combustible in organic matter material, the most again Other effective auxiliary agents of compatibility are extruded, and the sawdust based biomass granular fuel prepared is cheapest energy in clean energy resource Source, and price steadiness, calorific value are high, supply is reliable, are possible not only to evade the price fluctuation risk of fossil energy, moreover it is possible to realize structure Property energy-saving benefit.

Detailed description of the invention

The sawdust based biomass granule of a kind of compound wheat stalk, is prepared by the raw materials in: sawdust 118, wood Edge corner material 20, wheat stalk 44, herba setariae viridis grass 35, oat shell 30, Rhizoma Solani tuber osi powder 14, fluorite 10, hexamethylenamine 3.2, cocos nucifera oil acyl Diethanolamine 4.3, barium nitrate 2, cerium oxide 3, suitable quantity of water.

The manufacture method of the sawdust based biomass granule of described a kind of compound wheat stalk, comprises the following steps:

(1) sawdust is put in retort at a temperature of 450 DEG C, isolation air carbonization 20 minutes, be cooled to room temperature and add oxygen Change cerium to grind 40 minutes；

(2) being soaked 1 hour by fluorite 5-10wt% hydrochloric acid solution, washing is to neutral, and add water ultrasonic Treatment 8 points at 80 DEG C Clock, then soak 1 hour with 8-12wt% sodium hydroxide solution, washing is to neutral, and add water ultrasonic Treatment 8 minutes at 80 DEG C, so Rear addition hexamethylenamine, cocos nucifera oil acyl diethanolamine grind 20-30 minute, dry and prepare modified Fluorspar Powder；

(3) by wheat stalk, herba setariae viridis grass, oat shell with the hot-water soak 10 hours of 60 DEG C, filter and put in fermentation vat, control Fermentation vat temperature is at 30 DEG C, and humidity is 50%, and fermentation process is after 20 hours, and the modified Fluorspar Powder of addition, wood leftover material stir Continue fermentation 10 days, be cooled to room temperature and put into pulverizer is crushed to 60 mesh；

(4) by step (1), the mixing of (3) material stirring, adding suitable quantity of water and other residual components stirring and evenly mixing, feeding is squeezed into Type machine, is squeezed into a diameter of 5mm, the cylindrical particle of a length of 3cm with the briquetting pressure of 45MPa, is dried, discharging.

The technical parameter index using the sawdust based biomass granule of present invention production is as follows:

(1) anti-dropping intensity: 99.38%；

(2) sulfur content: 0.305%, less than the standard of special low-sulfur coal 0.50%；

(3) ash: 7.91%, in the range of low ash coal (ash is 5.01%-10.00%)；

(4) calorific value: 25.55MJ/kg, in the range of high combustion value coal (calorific value is 24.01-27.00MJ/kg).

Claims (2)

1. the sawdust based biomass granule of a compound wheat stalk, it is characterised in that be prepared by the raw materials in: saw End 118-130, wood leftover material 20-23, wheat stalk 44-47, herba setariae viridis grass 35-37, oat shell 30-34, Rhizoma Solani tuber osi powder 14- 16, fluorite 10-12, hexamethylenamine 3.2-3.5, cocos nucifera oil acyl diethanolamine 4.3-4.7, barium nitrate 2-4, cerium oxide 3-5, appropriate Water.

The manufacture method of the sawdust based biomass granule of a kind of compound wheat stalk the most according to claim 1, its feature It is to comprise the following steps:

(1) sawdust is put in retort at a temperature of 450-500 DEG C, isolation air carbonization 20-30 minute, it is cooled to room temperature Add cerium oxide abrasive 40-50 minute；

(2) being soaked 1-2 hour by fluorite 5-10wt% hydrochloric acid solution, washing, to neutral, adds water at 80-100 DEG C at ultrasound wave Managing 8-10 minute, then soak 1-2 hour with 8-12wt% sodium hydroxide solution, washing, to neutral, adds water ultrasonic at 80-100 DEG C Ripple processes 8-10 minute, is subsequently adding hexamethylenamine, the grinding of cocos nucifera oil acyl diethanolamine 20-30 minute, dries and prepare modified fluorite Powder；

(3) by wheat stalk, herba setariae viridis grass, oat shell with hot-water soak 10-12 hour of 60-70 DEG C, filter and put into fermentation vat In, control fermentation vat temperature is at 30-50 DEG C, and humidity is 50-60%, after fermentation process 20-30 hour, adds modified Fluorspar Powder, wood Edge corner material stirs continuation fermentation 10-20 days, is cooled to room temperature and puts into and be crushed to 60-80 mesh in pulverizer；

(4) by step (1), the mixing of (3) material stirring, adding suitable quantity of water and other residual components stirring and evenly mixing, feeding is squeezed into Type machine, is squeezed into a diameter of 5-8mm, the cylindrical particle of a length of 3-8cm with the briquetting pressure of 45MPa, is dried, discharging.