CN106244282A - A kind of high fuel value sawdust based biomass granule and preparation method thereof - Google Patents

Abstract

nullThe invention discloses a kind of high fuel value sawdust based biomass granule，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 free from environmental pollution，On the other hand，By rape stalk、Apple branch、After Ficus microcarpa Linn. f wood flour 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 modified kaolin、Cera Flava adds continuation fermentation process，And then the combustible in raising organic matter material，Finally by extruded for compound to the most modified sawdust and straw also other effective auxiliary agents of compatibility，The sawdust based biomass granular fuel materials prepared are extensive，Low stain、High heating value、Density is big、Ratio of briquetting is high，Meet environmental protection、Energy-conservation、The most renewable utilization of energy recycled and development trend.

Description

A kind of high fuel value sawdust based biomass granule and preparation method thereof

Technical field

The present invention relates to biomass fuel technical field, particularly relate to a kind of high fuel value sawdust based biomass granule and Manufacture method.

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 a kind of high fuel value sawdust based biomass granule And preparation method thereof.

The present invention is achieved by the following technical solutions:

A kind of high fuel value sawdust based biomass granule, is prepared by the raw materials in: sawdust 100-110, rape stalk 35-38, apple branch 45-47, Ficus microcarpa Linn. f wood flour 15-17, Glycine max (L.) Merr. 10-12, Kaolin 8-10, Cera Flava 4-6, nano titanium oxide 1.2-1.4, terpineol 5-7, azodiisobutyronitrile 2-4, suitable quantity of water.

The manufacture method of described a kind of high fuel value sawdust based biomass granule, 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 nano titanium oxide to grind 40-50 minute；

(2) being soaked 1-2 hour by Kaolin 5-10wt% hydrochloric acid solution, washing is to neutral, and add water ultrasound wave at 80-100 DEG C Processing 8-10 minute, then soak 1-2 hour with 8-12wt% sodium hydroxide solution, washing, to neutral, adds water super at 80-100 DEG C Sonicated 8-10 minute, is subsequently adding terpineol, azodiisobutyronitrile grinding 20-30 minute, dries and prepare modified kaolin；

(3) by rape stalk, apple branch, Ficus microcarpa Linn. f wood flour with hot-water soak 10-12 hour of 60-70 DEG C, filter and put into fermentation In pond, control fermentation vat temperature is at 30-50 DEG C, and humidity is 50-60%, after fermentation process 20-30 hour, addition modified kaolin, Cera Flava stirs and continues fermentation 10-20 days, is cooled to room temperature, puts into and be crushed to 60-80 mesh in pulverizer；

(4) by step (1), the mixing of (3) material stirring, add suitable quantity of water and the mixing of other residual components, send into single lead screw ex truding briquetting machine, It 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 free from environmental pollution, on the other hand, rape stalk, apple branch, Ficus microcarpa Linn. f wood flour is fermented After process, changing the structure sheaf of raw material and form the organizational structure of densification, and form the organic material of high-load, raising has Machine matter constituent, then modified kaolin, Cera Flava are added continue fermentation process, so improve in organic matter material flammable Thing, finally by extruded for compound to the most modified sawdust and straw also other effective auxiliary agents of compatibility, the sawdust base prepared is raw Material grains fuel materials are extensive, and low stain, high heating value, density are big, ratio of briquetting is high, meet environmental protection, circulation energy-conservation, the most renewable The utilization of energy utilized and development trend.

Detailed description of the invention

A kind of high fuel value sawdust based biomass granule, is prepared by the raw materials in: sawdust 100, rape stalk 35, apple branch 45, Ficus microcarpa Linn. f wood flour 15, Glycine max (L.) Merr. 10, Kaolin 8, Cera Flava 4, nano titanium oxide 1.2, terpineol 5, azo Bis-isobutyronitrile 2, suitable quantity of water.

The manufacture method of described a kind of high fuel value sawdust based biomass granule, 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 addition and receive Rice titanium dioxide grinds 40 minutes；

(2) being soaked 1 hour by Kaolin 5-10wt% hydrochloric acid solution, washing is to neutral, and add water ultrasonic Treatment 8 at 80 DEG C Minute, 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, Be subsequently adding terpineol, azodiisobutyronitrile grinds 20-30 minute, dries and prepares modified kaolin；

(3) by rape stalk, apple branch, Ficus microcarpa Linn. f wood flour with the hot-water soak 10 hours of 60 DEG C, filter and put in fermentation vat, control Fermentation vat temperature processed is at 30 DEG C, and humidity is 50%, and fermentation process is after 20 hours, adds modified kaolin, Cera Flava stirs continuation Ferment 10 days, be cooled to room temperature, put into and pulverizer is crushed to 60 mesh；

(4) by step (1), the mixing of (3) material stirring, add suitable quantity of water and the mixing of other residual components, send into single lead screw ex truding briquetting machine, It 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) density: 0.94g/cm³；

(2) sulfur content: 0.278%, less than the standard of special low-sulfur coal 0.50%；

(3) ash: 8.48%, in the range of low ash coal (ash is 5.01%-10.00%)；

(4) calorific value: 24.28MJ/kg, in the range of high combustion value coal (calorific value is 24.01-27.00MJ/kg).

Claims (2)

1. one kind high fuel value sawdust based biomass granule, it is characterised in that be prepared by the raw materials in: sawdust 100- 110, rape stalk 35-38, apple branch 45-47, Ficus microcarpa Linn. f wood flour 15-17, Glycine max (L.) Merr. 10-12, Kaolin 8-10, Cera Flava 4-6, Nano titanium oxide 1.2-1.4, terpineol 5-7, azodiisobutyronitrile 2-4, suitable quantity of water.

The manufacture method of a kind of high fuel value sawdust based biomass granule the most according to claim 1, it is characterised in that bag Include 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 nano titanium oxide to grind 40-50 minute；

(2) being soaked 1-2 hour by Kaolin 5-10wt% hydrochloric acid solution, washing is to neutral, and add water ultrasound wave at 80-100 DEG C Processing 8-10 minute, then soak 1-2 hour with 8-12wt% sodium hydroxide solution, washing, to neutral, adds water super at 80-100 DEG C Sonicated 8-10 minute, is subsequently adding terpineol, azodiisobutyronitrile grinding 20-30 minute, dries and prepare modified kaolin；

(3) by rape stalk, apple branch, Ficus microcarpa Linn. f wood flour with hot-water soak 10-12 hour of 60-70 DEG C, filter and put into fermentation In pond, control fermentation vat temperature is at 30-50 DEG C, and humidity is 50-60%, after fermentation process 20-30 hour, addition modified kaolin, Cera Flava stirs and continues fermentation 10-20 days, is cooled to room temperature, puts into and be crushed to 60-80 mesh in pulverizer；

(4) by step (1), the mixing of (3) material stirring, add suitable quantity of water and the mixing of other residual components, send into single lead screw ex truding briquetting machine, It 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.