Preparation method of energy-saving waste salt ball for pyrolysis

A technology of pyrolysis and waste salt residue, applied in the combustion method, lighting and heating equipment, combustion type and other directions, can solve the problems of serious equipment corrosion, unfavorable resource utilization, difficult to control, etc., to reduce equipment corrosion, reduce raw material consumption, Reduce the effect of direct contact

Active Publication Date: 2021-04-27
绍兴越信环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing harmless treatment methods for waste salt slag include high-temperature incineration pyrolysis, medium and low temperature pyrolysis, and dissolution and oxidation to remove impurities. These methods all have some technical deficiencies. The corrosion of ions on the equipment is serious, which is not conducive to the stable operation of the equipment; in the middle and low temperature pyrolysis process, the organic matter in the waste salt slag cannot be completely removed, and the degree of harmlessness of the waste salt slag is low; Lengthy, many technical key points, difficult to control, and the responsible work section is not conducive to resource utilization

Method used

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  • Preparation method of energy-saving waste salt ball for pyrolysis
  • Preparation method of energy-saving waste salt ball for pyrolysis
  • Preparation method of energy-saving waste salt ball for pyrolysis

Examples

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Effect test

Embodiment 1

[0027] A method for preparing energy-saving waste salt pellets for pyrolysis, comprising the following steps:

[0028] (a) drying the waste salt slag at 55°C, and controlling the water content of the waste salt slag to be below 10%;

[0029] (b) placing the dried waste salt slag and rice husk particles in a stirring device at a mass ratio of 5:1 to obtain pyrolysis core particles with a calorific value greater than 2500 kcal / kg;

[0030] (c) Add polymer adhesive polymethyl acrylate and inorganic material fly ash rich in iron, aluminum, silicon and pore structure to the pyrolysis core particles, stir and mix until the inorganic materials evenly cover the surface of the pyrolysis core particles, Waste salt pellets were obtained, wherein the mass ratio of pyrolysis core particles to polymethylacrylate and fly ash was 1:0.3:2.

[0031] Such as Figure 1 to Figure 6 As shown, the stirring device includes a tank body 1, a central shaft 2 driven to rotate by a motor 23, a rotating ...

Embodiment 2

[0039] A method for preparing energy-saving waste salt pellets for pyrolysis, comprising the following steps:

[0040] (a) drying the waste salt slag at 50°C, and controlling the water content of the waste salt slag to be below 10%;

[0041] (b) placing the dried waste salt slag and straw particles in a stirring device at a mass ratio of 10:1 to obtain pyrolysis core particles with a calorific value greater than 2500 kcal / kg;

[0042] (c) Add polymer adhesive polymethacrylate and inorganic material incineration fly ash rich in iron, aluminum, silicon and pore structure to the pyrolysis core particles, stir and mix until the inorganic materials evenly cover the surface of the pyrolysis core particles , to obtain waste salt pellets, wherein the mass ratio of pyrolysis core particles to polymethacrylate and incineration fly ash is 1:0.5:3.

Embodiment 3

[0044] A method for preparing energy-saving waste salt pellets for pyrolysis, comprising the following steps:

[0045] (a) drying the waste salt slag at 60°C, and controlling the water content of the waste salt slag to be below 10%;

[0046] (b) placing the dried waste salt slag and corncob particles in a stirring device in a mass ratio of 20:1 to obtain pyrolysis core particles with a calorific value greater than 2500 kcal / kg;

[0047] (c) Add polymer adhesive polyvinyl acetate and inorganic material activated carbon rich in iron, aluminum, silicon and pore structure to the pyrolysis core particles, stir and mix until the inorganic materials evenly cover the surface of the pyrolysis core particles, and obtain waste Salt balls, wherein the mass ratio of pyrolysis core particles to polyvinyl acetate and activated carbon is 1:0.8:3.5.

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Abstract

The invention discloses a preparation method of energy-saving waste salt balls for pyrolysis. The preparation method comprises the following steps of (a) drying waste salt slag at 50-60 DEG C, and controlling the water content of the waste salt slag below 10%; (b) stirring the dried the waste salt slag and biomass particles in a stirring device according to a mass ratio of (5-20): 1 to obtain pyrolysis inner core particles with a calorific value of more than 2500 kilocalories / kg; and (c) adding a polymer adhesive and an inorganic material rich in iron, aluminum and silicon and having a porous structure into the pyrolyzed inner core particles, and stirring and mixing until the inorganic material uniformly covers the surfaces of the pyrolyzed inner core particles to obtain the waste salt balls. The preparation method can effectively reduce the direct contact between waste salt and equipment, reduce the corrosion to the equipment, improve the pyrolysis rate of organic matters in the waste salt slag, and reduce the consumption of natural gas energy.

Description

technical field [0001] The invention relates to the technical field of waste salt slag treatment, in particular to a method for preparing energy-saving waste salt pellets for pyrolysis. Background technique [0002] Waste salt slag (high salt-containing waste liquid) is a by-product produced in large quantities in the production process of chemical products, which contains a large amount of organic matter and impurities. The existing harmless treatment methods for waste salt slag include high-temperature incineration pyrolysis, medium and low temperature pyrolysis, and dissolution and oxidation to remove impurities. These methods all have some technical deficiencies. The corrosion of ions on the equipment is serious, which is not conducive to the stable operation of the equipment; in the middle and low temperature pyrolysis process, the organic matter in the waste salt slag cannot be completely removed, and the degree of harmlessness of the waste salt slag is low; It is len...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/027F23G5/04F23G5/28F23G5/44
CPCF23G5/027F23G5/04F23G5/28F23G5/44
Inventor 赵博徐明黄关火范叶超顾一飞
Owner 绍兴越信环保科技有限公司
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