CN106281550A - A kind of moistureproof sawdust based biomass granule and preparation method thereof - Google Patents

Abstract

The invention discloses a kind of moistureproof 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 corn straw, pine and cypress branch, after eggplant seedling 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 burned-coal fly ash, biogas residue, cocoanut active charcoal adds continuation fermentation process, and then the combustible in raising organic matter material, last other effective auxiliary agents of compatibility again are extruded, the sawdust based biomass granular fuel low cost prepared, moistureproof easily storage, anti-dropping intensity is high, low stain.

Description

A kind of moistureproof 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 moistureproof sawdust based biomass granule and making thereof 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 moistureproof sawdust based biomass granule and Manufacture method.

The present invention is achieved by the following technical solutions:

A kind of moistureproof sawdust based biomass granule, is prepared by the raw materials in: sawdust 102-111, corn straw 48- 50, pine and cypress branch 14-16, eggplant seedling 38-43, cocoanut active charcoal 18-20, biogas residue 35-40, burned-coal fly ash 14-16, polrvinyl chloride tree Fat 5-7, Celery oil 4-6, Polyethylene Glycol 3-5, potassium hyperchlorate 2.3-2.6, suitable quantity of water.

The manufacture method of described a kind of moistureproof 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 300- 310 DEG C add Corvic mixing, are cooled to grinding at room temperature 40-50 minute；

(2) being soaked 1-2 hour by burned-coal fly ash 5-10wt% hydrochloric acid solution, washing, to neutral, adds water ultrasonic at 80-100 DEG C Ripple processes 8-10 minute, then soaks 1-2 hour with 8-12wt% sodium hydroxide solution, and washing, to neutral, adds water at 80-100 DEG C Ultrasonic Treatment 8-10 minute, is subsequently adding Celery oil, Polyethylene Glycol grinding 20-30 minute, dries and prepare modified burned-coal fly ash；

(3) by corn straw, pine and cypress branch, eggplant seedling with hot-water soak 10-12 hour of 60-70 DEG C, filter and put in fermentation vat, Control fermentation vat temperature is at 30-50 DEG C, and humidity is 50-60%, after fermentation process 20-30 hour, adds modified burned-coal fly ash, natural pond Slag, cocoanut active charcoal stir continuation fermentation 10-20 days, are cooled to room temperature and put 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 free from environmental pollution, on the other hand, corn straw, pine and cypress branch, eggplant seedling is carried out fermentation process After, change the structure sheaf of raw material and form the organizational structure of densification, and form the organic material of high-load, improve organic matter Constituent, then modification burned-coal fly ash, biogas residue, cocoanut active charcoal are added continuation fermentation process, and then improve organic matter material In combustible, other effective auxiliary agents of compatibility are extruded the most again, the sawdust based biomass granular fuel low cost for preparing, anti- Tide easily stores, the high and low pollution of anti-dropping intensity.

Detailed description of the invention

A kind of moistureproof sawdust based biomass granule, is prepared by the raw materials in: sawdust 102, corn straw 48, pine Cypress branch 14, eggplant seedling 38, cocoanut active charcoal 18, biogas residue 35, burned-coal fly ash 14, Corvic 5, Celery oil 4, Polyethylene Glycol 3, potassium hyperchlorate 2.3, suitable quantity of water.

The manufacture method of described a kind of moistureproof 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 300 DEG C and add poly- Vinyl chloride resin mixes, and is cooled to grinding at room temperature 40 minutes；

(2) being soaked 1 hour by burned-coal fly ash 5-10wt% hydrochloric acid solution, washing is to neutral, and add water ultrasonic Treatment at 80 DEG C 8 minutes, then soak 1 hour with 8-12wt% sodium hydroxide solution, washing is to neutral, and add water ultrasonic Treatment 8 points at 80 DEG C Clock, is subsequently adding Celery oil, Polyethylene Glycol grinding 20-30 minute, dries and prepare modified burned-coal fly ash；

(3) by corn straw, pine and cypress branch, eggplant seedling with the hot-water soak 10 hours of 60 DEG C, filter and put in fermentation vat, control to send out Ferment pond temperature is at 30 DEG C, and humidity is 50%, and fermentation process is after 20 hours, and the modified burned-coal fly ash of addition, biogas residue, cocoanut active charcoal stir Mix and uniformly 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) density: 0.96g/cm³；

(2) anti-dropping intensity: 99.7%；

(3) ash: 7.49%, in the range of low ash coal (ash is 5.01%-10.00%).

Claims (2)

1. a moistureproof sawdust based biomass granule, it is characterised in that be prepared by the raw materials in: sawdust 102-111, Corn straw 48-50, pine and cypress branch 14-16, eggplant seedling 38-43, cocoanut active charcoal 18-20, biogas residue 35-40, burned-coal fly ash 14- 16, Corvic 5-7, Celery oil 4-6, Polyethylene Glycol 3-5, potassium hyperchlorate 2.3-2.6, suitable quantity of water.

The manufacture method of a kind of moistureproof sawdust based biomass granule the most according to claim 1, it is characterised in that include with Lower step:

(1) sawdust is put in retort at a temperature of 450-500 DEG C, isolation air carbonization 20-30 minute, it is cooled to 300- 310 DEG C add Corvic mixing, are cooled to grinding at room temperature 40-50 minute；

(2) being soaked 1-2 hour by burned-coal fly ash 5-10wt% hydrochloric acid solution, washing, to neutral, adds water ultrasonic at 80-100 DEG C Ripple processes 8-10 minute, then soaks 1-2 hour with 8-12wt% sodium hydroxide solution, and washing, to neutral, adds water at 80-100 DEG C Ultrasonic Treatment 8-10 minute, is subsequently adding Celery oil, Polyethylene Glycol grinding 20-30 minute, dries and prepare modified burned-coal fly ash；

(3) by corn straw, pine and cypress branch, eggplant seedling with hot-water soak 10-12 hour of 60-70 DEG C, filter and put in fermentation vat, Control fermentation vat temperature is at 30-50 DEG C, and humidity is 50-60%, after fermentation process 20-30 hour, adds modified burned-coal fly ash, natural pond Slag, cocoanut active charcoal stir continuation fermentation 10-20 days, are cooled to room temperature and put 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.