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High-density pelletizing biomass and pelletizing method thereof

A biomass, high-density technology, applied in the direction of biofuel, waste fuel, die extrusion granulation, etc., can solve problems such as unfavorable environmental protection, containing sulfide, unfavorable combustion, etc., to achieve environmental protection, sulfide content Low, cheap effect

Inactive Publication Date: 2019-11-05
江苏东工环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because straw is cheap and has a wide range of sources, it is still the fuel for cooking and heating commonly used by farmers in cities and towns. However, because the moisture of straw is not easy to control, especially in rainy days and dog days, straw is prone to mildew and dampness. Not conducive to burning
Although No. ZL01107033 Chinese patent has disclosed the patent that the title of invention is " biomass compound briquette production technology " on August 22, 2001, this patent has solved the problem that the moisture of stalk is too high and difficult to control, but, because in this In the patent, straw accounts for about 40% and lignite accounts for about 60%. Therefore, the production of this biomass composite briquette still consumes a lot of coal, which is not conducive to energy saving
In addition, although a certain amount of sulfur-fixing agent is added to the biomass composite briquette, the flue gas after the combustion of the biomass composite briquette still contains sulfide, which is not conducive to environmental protection.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The preparation method of high-density granulated biomass of the present invention is as follows:

[0024] (1) 1-9 mesh, 10-50 mesh, 51-100 mesh, 101 mesh or more straw powders are uniformly mixed in proportions of 10%, 40%, 40%, and 10%;

[0025] (2) Send the mixture in step (1) into the ring die pellet molding machine, and extrude it at a temperature of about 130°C and a pressure of about 110Mpa to obtain a density of about 1.3g / cm³ and a water content of about 12% high-density granulated biomass; high-density granulated biomass is a cylinder with a diameter of about 1 cm and a length of 6 cm;

[0026] (3) Packing the obtained high-density granulated biomass after cooling down to room temperature.

Embodiment 2

[0028] The preparation method of high-density granulated biomass of the present invention is as follows:

[0029] (1) 1-9 meshes, 10-50 meshes, 51-100 meshes, 101 meshes and above straw powders are evenly mixed in proportions of 15%, 35%, 35%, 15%;

[0030] (2) Send the mixture in step (1) into the ring die briquetting machine, and extrude it at a temperature of about 140°C and a pressure of about 115Mpa to obtain a density of about 1.25g / cm³ and a water content of about 11.5% high-density granulated biomass; high-density granulated biomass is cylindrical with a diameter of about 1 cm and a length of 6 cm;

[0031] (3) Packing the obtained high-density granulated biomass after cooling down to room temperature.

[0032] Several kinds of straw can be mixed to make straw powder, which can be used as raw material for granulating biomass.

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Abstract

The invention relates to high-density pelletizing biomass and a pelletizing method thereof. The pelletizing method comprises the steps that a mixture of straw powder particles with a certain proportion is fed into a forming machine, and extrusion is carried out under the condition of the temperature being 110-150 DEG C and pressure being 105-120 MPa to obtain the high-density pelletizing biomass with the density being 1.2-1.4g / cm<3> and 10-12% water content; and packaging is carried out after obtained forming fuel is reduced to a room temperature. The fuel is convenient to transport and easy to store, has extremely low sulfide content after combustion, and is a novel energy source with sustainable development.

Description

technical field [0001] The invention relates to biomass energy utilization technology, in particular to a high-density granulated biomass using straw as a raw material and a granulation method thereof. Background technique [0002] Because straw is cheap and has a wide range of sources, it is still the fuel for cooking and heating commonly used by farmers in cities and towns. However, because the moisture of straw is not easy to control, especially in rainy days and dog days, straw is prone to mildew and dampness. Not conducive to burning. Although No. ZL01107033 Chinese patent has disclosed the patent that the title of invention is " biomass compound briquette production technology " on August 22, 2001, this patent has solved the problem that the moisture of stalk is too high and difficult to control, but, because in this In the patent, straw accounts for about 40% and lignite accounts for about 60%. Therefore, the production of this biomass composite briquette still consu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44B01J2/22
CPCB01J2/22C10L5/445C10L2290/32Y02E50/10Y02E50/30
Inventor 李东亮朱复东贾树山
Owner 江苏东工环保科技股份有限公司
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