Powdery material covering agent and using method thereof

Abstract

The invention provides a powdery material covering agent and a using method thereof. Components of a covering agent mother solution of the covering agent comprise 30-40 wt% of vinyl benzene acid, 40-50wt% of vinyl benzene carboxylic acid and 15-20wt% of sodium benzoate. The covering agent mother solution is mixed with water and form 9-11% of a water solution, the water solution is sprayed to a powdery material stack with a spray gun, the spraying amount is controlled to be 1-1.5 kg / m<2>, the water solution at an outlet of the spray gun is controlled to be in an atomized state and prevented from being directly sprayed on the surface of the powdery material stack, the area where the water solution is not sprayed is sprayed again, and a surface condensation film is formed on the surface of the material stack, so that powdery materials can be prevented from raising, environmental pollution is avoided, wind damage and rain damage to the materials can be extremely reduced, the materials can be prevented from corrosion and deterioration, and the material loss and the cost of raw materials are reduced.

Description

technical field [0001] The invention belongs to the technical field of sintering raw material storage, and in particular relates to a covering agent for preventing dust and loss of powdery materials and its application method. Background technique [0002] With the optimization of the sintering production process, domestic sintering plants are equipped with large open-air raw material yards. The raw material field is responsible for the storage of various materials and the processing and handling of mixed ore for sintering. The main types of materials in the raw material yard are imported mineral powder and coking coal, most of which are transported to the raw material yard by sea. Since most of the raw material sites are located in the coastal area, there is a lot of wind and rain, and the powdery materials are easily dusted and washed away by the rain, which not only causes the loss and waste of raw materials, but also causes environmental pollution of the raw material si...

AI Technical Summary

Problems solved by technology

Because most of the raw material sites are located in the coastal area, there is a lot of wind and rain, and the powdery materials are easily dusted and washed away by the rain, which not only causes the loss and waste of raw materials, but also causes environmental pollution in the raw material sites.

[0003] Usually, the way to control the dust of powdery materials in the raw material yard is to cover the stockpile, but due to the large storage of powdery materials, a large amount of thatching materials is required, and a lot of manpower is required

Not only that, but the thatch is easily corroded over time, and remains in the material after being damaged, which not only causes the quality of the material to decline, but also has a certain impact on the production process