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Prepn of powdered briquette adhesive

A binder and briquette technology, which is applied in the field of preparation of dry powder briquette binders, can solve problems such as difficulty in improving production efficiency, slow melting speed of dry powder binders, and affecting briquette production efficiency.

Inactive Publication Date: 2007-01-03
SHANDONG CHUANGXIN HUMIC ACID TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because the process is long, the production efficiency is difficult to improve, the production cost remains high, and the dry powder adhesive produced has a slow melting speed, which affects the production efficiency of coal briquettes
Since sodium humate is a heat-sensitive briquette binder, a little carelessness in the production process will affect the physical and chemical indicators of the briquette binder, thereby reducing the quality of the binder

Method used

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  • Prepn of powdered briquette adhesive

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Embodiment Construction

[0008] The present invention will be further described below in conjunction with embodiment. According to the technical process of the present invention, the 3m 3 Input clean water into the glass-lined reactor 4, heat up to 70-95°C, add 1600kg of humic acid 1 and 220kg of sodium hydroxide 2, and then add a small amount of heat stabilizer 5 and activity accelerator 6. After reacting in the kettle for 60 minutes, the liquid briquette binder 7 with a solid content of 23% and a viscosity of 30 seconds (based on 4 cups) of 5000 kg was obtained. After the centrifugal filtration process 8 is stored in the storage tank 9, the spray drying system is started, and the hot air with a temperature of 300° C. is blown in through the hot air generator 12, and the centrifugal turntable of the spray drying tower 11 is started simultaneously to send the liquid briquette binder 7 to the storage tank 9. Into the centrifugal turntable at the top of the spray drying tower 11, the feed liquid is spr...

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Abstract

The process of preparing powdered briquette adhesive includes the following steps: adding humic acid and sodium hydroxide in the weight ratio of 6-12 into hot water and reaction in a glass lined reactor to produce liquid briquette adhesive, filtering and storing in a tank, pumping with a plunger pump to spray drying tower to spray pelletize and dry with hot blast, dedusting waste gas before exhausting and bagging the collected product. The powdered briquette adhesive has water content of 3-17 wt% and fineness of 40-100 mesh. The preparation process has high production efficiency, low cost, short time and less environmental pollution.

Description

technical field [0001] The invention relates to a preparation method of a coal binder, in particular to a preparation method of a dry powder shaped coal binder. Background technique [0002] The production method of dry powder briquette binder now, the one, adopt mixing method, directly two or more dry powder raw materials are bagged after manual or mechanical mixing. Inorganic components account for the majority in the manufactured products of this method, and the produced briquettes have high ash content and low fixed carbon content, which correspondingly reduces the calorific value and gas generation of the briquettes. Then there are liquid adhesives made of humic acid as the main raw material, which are further processed into dry powder briquette adhesives. Generally, there are three drying methods: one is drying in the sun; the other is drying with a drum dryer; the third is drying. Dry in a flash dryer or disc dryer. After these three methods are dried, they need to ...

Claims

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Application Information

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IPC IPC(8): C10L5/14
Inventor 孙明广
Owner SHANDONG CHUANGXIN HUMIC ACID TECH