Bellows distribution method and device for chain grate

Abstract

The embodiment of the invention discloses an air bellows distributing method and an air bellows distributing device of a chain-grate machine. The method comprises the steps: obtaining the total quantity of the air bellows of the chain-grate machine and the total quantity of process sections; calculating the ratio of the total quantity of the air bellows to the total quantity of process sections; according to the ratio, determining various pre-distribution schemes for distributing the air bellows for the process sections, wherein the sum of the quantity of the air bellows pre-distributed for all the process sections is equal to the total quantity of the air bellows; simulating the process for drying and preheating green pellets under each pre-distribution scheme to obtain drying and preheating quality scores; and selecting the pre-distribution scheme with the highest score from the various pre-distribution schemes to serve as the scheme for distributing the air bellows for the process sections. By adoption of the method and the device provided by the invention, the drying and preheating quality of the pellets can be guaranteed under the condition of low cost.

Description

technical field [0001] The invention relates to the technical field of iron and steel smelting, in particular to a method and device for distributing bellows of a chain grate. Background technique [0002] Grate machine is a kind of crawler heat transfer equipment, which is used to undertake the drying and preheating process in the pellet production process of the smelting industry. The working principle of the chain grate machine is that the green pellets evenly distributed on the grate bed at the end of the chain grate machine pass through the drying process section, the transitional preheating process section and the preheating process section in sequence, so as to complete the drying and preheating of the green pellets . Among them, different process sections are distinguished by hot air flow at different temperatures. Generally, the temperature of the hot air flow in the drying process section is 200-400 degrees Celsius, and the temperature of the hot air flow in the t...

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Problems solved by technology

For the plan of determining the distribution of the bellows based on the pellet test, although the drying and preheating quality of the green pellets can be guaranteed, a large number of experiments need to be done in advance, which will cost a lot of manpower and material resources, and the cost is high; The box distribution scheme, in the case of less manual experience, it is difficult to ensure the drying and preheating quality of the pellets

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