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Sludge and semi-coke coal composite additive

A compound additive and sludge technology, which is applied in the petroleum industry, solid fuel, fuel, etc., can solve the problems of low calorific value of sludge and inability to burn directly

Inactive Publication Date: 2016-02-10
BEIJING HUANYU JINGNENG ENVIRONMENT PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the calorific value of sludge itself is low, about 1500kcal / kg, and usually cannot be directly burned

Method used

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  • Sludge and semi-coke coal composite additive
  • Sludge and semi-coke coal composite additive
  • Sludge and semi-coke coal composite additive

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Effect test

Embodiment 1

[0014] A compound additive for sludge semi-coke briquette, which is composed of organic starch, bentonite, industrial alkali and surfactant.

[0015] The organic starch includes corn starch, sweet potato starch, pregelatinized starch, and potato processing waste, and the bentonite selects calcium-based bentonite as an auxiliary material for increasing the cold strength of the molded coal, and the surfactant is a polycarboxylate surfactant. Naphthalene series surfactant and macromolecule surfactant, its consumption is 0.6% of the total amount of starch and water consumption.

[0016] The industrial alkali is sodium hydroxide, and its consumption is 1.3% of the sum of starch and water consumption.

[0017] The bentonite is calcium-based bentonite, and the amount of bentonite added is 3% of the total mass of sludge and semi-coke powder.

[0018] The addition ratio of the sludge is 10%-12%.

[0019] 1. Selection of organic starch binder

[0020] Select four kinds of A, B, C, D,...

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Abstract

A sludge and semi-coke coal composite additive is characterized by consisting of organic starch, bentonite, industrial alkali and surfactants, wherein the organic starch comprises corn starch, sweet potato starch, pregelatinized starch and potato processing residues; bentonite is calcium-based bentonite to serve as an auxiliary material for improving the cold strength of briquette coal; the surfactants comprise a polycarboxylate surfactant, a naphthalene series surfactant and a polymeric surfactant.

Description

technical field [0001] The invention relates to a compound additive for sludge semi-coke molded coal. Background technique [0002] With the rapid advancement of urbanization in my country, the amount of municipal sludge is increasing. According to statistics, it has reached more than 30 million tons per year. Due to the large number of urban industrial parks, domestic sewage treatment plants often mix industrial wastewater, resulting in high heavy metal content in sludge. At present, landfill is the main treatment method for sludge in China, and the utilization rate of resource and energy utilization is low. The reduction of incineration is obvious, and it is one of the directions of sludge treatment in the world. However, the calorific value of sludge itself is low, about 1500kcal / kg, and usually cannot be directly burned. It is one of the sludge treatment directions supported by the state to effectively reduce the investment and treatment costs of sludge treatment by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10
Inventor 葛苏米风军任东明
Owner BEIJING HUANYU JINGNENG ENVIRONMENT PROTECTION TECH CO LTD