Method for preparing coal rod

Abstract

The invention discloses a method for preparing a coal rod. Coke powders produced in the calcium carbide production process are sent into a three-level material mixing horizontal stirrer from a coke powder bin after controlling the addition quantity by a speed control belt conveyer and are uniformly mixed with mixed materials, and the mixture enters a coal rod machine to prepare the coal rod. As the coke powders are not ground by entering a cage type grinder, the invention solves the problem of aggravating equipment abrasion in the process of adding the coke powders so as to open up a new way of reasonably utilizing the coke powders.

Description

technical field [0001] The invention belongs to the field of coal chemical industry, and in particular relates to a method for preparing coal rods. Background technique [0002] Calcium carbide is an important raw material in the chemical industry. A large amount of coke powder will be produced during the manufacture of calcium carbide. These cokes cannot be directly used in production as ordinary pulverized coal. If they are used to make coal rods, a certain amount of coke powder should be added to the raw coal , into the cage pulverizer for crushing, the use time of the cage pulverizer stick is about 5 days, and in the case of raw coal without adding coke powder, the use time of the cage pulverizer stick is generally 7 days, such a In the past, adding coke powder to the raw coal caused greater damage to the cage crusher, which greatly increased the cost and labor intensity of maintenance workers. Contents of the invention [0003] The technical problem to be solved by t...

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Problems solved by technology

[0002] Calcium carbide is an important raw material in the chemical industry. A large amount of coke powder will be produced during the manufacture of calcium carbide. These cokes cannot be directly used in production as ordinary pulverized coal. If they are used to make coal rods, a certain amount of coke powder should be added to the raw coal , into the cage pulverizer for crushing, the use time of the cage pulverizer stick is about 5 days, and in the case of raw coal without adding coke powder, the use time of the cage pulverizer stick is generally 7 days, such a In the past, adding coke powder to the raw coal caused greater damage to the cage crusher, which greatly increased the cost and labor intensity of the maintenance workers.

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