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Preparation method of low-slagging sludge biomass solid fuel

A technology for solid fuel and biomass, which is applied in the field of low-slagging sludge biomass solid fuel preparation, can solve the problems of large slagging amount and affecting the combustion effect of dyes, and achieves hard slagging, remarkable combustion effect, and avoidance of silicon dioxide. The effect of acid formation

Inactive Publication Date: 2018-11-27
合肥市晶谷农业科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, there is an attempt to make solid fuel from the sludge in the sewage treatment plant, but it has the technical defect of a large amount of slagging, which seriously affects the combustion effect of the dye

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0015] A preparation method of low-slagging sludge biomass solid fuel, comprising the following operation steps:

[0016] (1) Add the modified liquid to the sludge, adjust the sludge into a slurry with a mass moisture content of 91%, and obtain a modified sludge, wherein the modified liquid is made of the following components by weight: methyl propylene sulfonic acid 14 parts of sodium, 3 parts of sodium molybdate dihydrate, 1 part of o-hydroxybenzoic acid, 16 parts of potassium hydrogen phthalate, 25 parts of sodium lignosulfonate, and 850 parts of water;

[0017] (2) The dried crop straws were pulverized to an average length of 1 cm to obtain broken straws, and then, in parts by weight, 89 parts of modified sludge, 33 parts of broken straw, 0.1 part of sodium orthovanadate, 0.1 part of The igniter, after mixing and stirring evenly, is added to the filter press to obtain low-slagging sludge biomass solid fuel.

[0018] Specifically, in the above step (1), the initial moistur...

Embodiment 2

[0022] A preparation method of low-slagging sludge biomass solid fuel, comprising the following operation steps:

[0023] (1) Add a modified liquid to the sludge, and prepare the sludge into a slurry with a mass moisture content of 93% to obtain a modified sludge, wherein the modified liquid is made of the following components by weight: methyl propylene sulfonic acid 16 parts of sodium, 5 parts of sodium molybdate dihydrate, 2 parts of o-hydroxybenzoic acid, 18 parts of potassium hydrogen phthalate, 28 parts of sodium lignosulfonate, 880 parts of water;

[0024] (2) The dried crop straws are pulverized to an average length of 1.5cm to obtain broken straws, and then, in parts by weight, 92 parts of modified sludge, 36 parts of broken straws, 0.2 parts of sodium orthovanadate, 0.1 After mixing and stirring evenly, it is added to the filter press to obtain low-slagging sludge biomass solid fuel.

[0025] Specifically, in the above step (1), the initial moisture content of the s...

Embodiment 3

[0029] A preparation method of low-slagging sludge biomass solid fuel, comprising the following operation steps:

[0030] (1) Add a modified liquid to the sludge, and prepare the sludge into a slurry with a mass moisture content of 95% to obtain a modified sludge, wherein the modified liquid is made of the following components by weight: methyl propylene sulfonic acid 18 parts of sodium, 8 parts of sodium molybdate dihydrate, 3 parts of o-hydroxybenzoic acid, 20 parts of potassium hydrogen phthalate, 30 parts of sodium lignosulfonate, and 900 parts of water;

[0031] (2) Pulverize the dried crop straws to an average length of 2 cm to obtain broken straws, and then, in parts by weight, 95 parts of modified sludge, 40 parts of broken straws, 0.3 parts of sodium orthovanadate, 0.2 parts of The igniter, after mixing and stirring evenly, is added to the filter press to obtain low-slagging sludge biomass solid fuel.

[0032] Specifically, in the above step (1), the initial moisture...

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PUM

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Abstract

The invention discloses a preparation method of low-slagging sludge biomass solid fuel, comprising the steps of (1) adding a modifying liquid into sludge to made the sludge into slurry having the water content by mass of 91-95% so as to obtain modified sludge; (2) crushing dried crop straws to average length of 1-2 cm so as to obtain crushed straws, mixing well, by weight, 89-95 parts of modifiedsludge, 33-40 parts of crushed straws, 0.1-0.3 part of sodium orthovanadate and 0.1-0.2 part of an igniting agent, and adding the mixture into a filter press to manufacture the low-slagging sludge biomass solid fuel. The preparation method of the low-slagging sludge biomass solid fuel is simple to perform, and has low cost; the fuel made herein rarely slags during combustion, and the combustion effect is significant.

Description

technical field [0001] The invention belongs to the technical field of biomass fuel, and in particular relates to a preparation method of low-slagging sludge biomass solid fuel. Background technique [0002] At present, China's energy structure dominated by fossil energy has increasingly faced the dual constraints of resources and environment, which is obviously unsustainable. There is an urgent need to develop renewable energy rapidly, which is of strategic significance to ensure the sustainable development of China's national economy. Biomass energy has a wide range of sources, a large quantity and great development potential. It not only has the properties of fossil fuels, but also has the characteristics of storage, transportation, regeneration and conversion. It can be widely used in production and living, cooking, heating and power generation, and is one of the important ways of energy utilization in the future. Sludge is a by-product produced in the sewage treatment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/44C10L5/46C10L9/10
CPCC10L5/445C10L5/46C10L9/10C10L2290/30Y02E50/10Y02E50/30
Inventor 严晓武
Owner 合肥市晶谷农业科技开发有限公司
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