Preparing and application method of high-strength waterproof briquette coal adhesive

Abstract

The invention discloses a preparing method and application method of a high-strength waterproof briquette coal adhesive. The adhesive is prepared from, by mass, cement, sodium humate, clay, sodium salt, a concrete accelerator and the like; the preparing method includes the steps that 23% to 35% of the cement and 5% to 13% of the concrete accelerator are mixed into a reactor, the mixture is sufficiently stirred for 3 min to 15 min, then 40% to 65% of the sodium humate and 1% to 5% of a sodium compound are slowly added into the mixture, 8% to 20% of the red clay is added into the reactor in the stirring process, the mixture is sufficiently stirred for 3 min to 10 min, and the briquette coal adhesive is obtained. According to the briquette coal adhesive, the raw materials are easy to get, the price is low, and the preparing technology is simple; when the adhesive is added into pulverized coal, prepared clean briquette coal has high cold-hot strength, good heat stability and excellent waterproof performance, and it is effectively avoided that as clean briquette coal absorbs a small amount of moisture in air, strength is reduced, and damage is caused in the transportation, loading and unloading processes. The preparing method and application method are suitable for application and popularization.

Description

technical field [0001] The invention relates to a high-strength water-resistant briquette binder, in particular to the preparation of a high-strength water-resistant briquette binder and its application in coal powder. Background technique [0002] As China's main energy resource, coal will always occupy a dominant position in the short term, but environmental problems such as greenhouse effect and smog caused by its combustion products have gradually attracted people's attention, calling for "energy saving and emission reduction" globally Next, the Chinese government promises to the people of the world that the emission of carbon dioxide will reach its peak in 2030 and will strive to reach the peak as soon as possible. For this reason, the Chinese government has formulated corresponding preferential policies to guide the vigorous development of clean coal technology. [0003] The so-called clean coal technology refers to coal gasification, liquefaction, high-efficiency coal...

AI Technical Summary

Problems solved by technology

[0003] The so-called clean coal technology refers to coal gasification, liquefaction, high-efficiency coal combustion, or making anthracite coal into briquettes. As a type of clean coal, briquettes are environmentally friendly coal resources approved by the government. Among them, briquettes are sticky Mixture is the key to the preparation of briquettes, and it is also the bottleneck restricting the development of briquettes. Although the briquettes prepared by using the briquette binders on the market can meet the requirements of industrial briquettes in terms of coldness, heat strength and thermal stability, the cost Higher, especially poor waterproof performance, only absorbing a small amount of water in the air can greatly reduce the cold strength of the briquette, which will cause a lot of damage during transportation, loading and unloading, and affect the use of the briquette

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