grain dust and its protection suggestions


grains are the seeds of cereal crops, including cellulose based seed coating and carbohydrate based interior. Common cereals include: wheat, barley, oats, rye, corn, sorghum, millet, millet, yellow rice, buckwheat, soybean, broad bean, pea, mung bean, red bean, kidney bean, etc. Grain may be polluted by many other materials during transportation and processing. Therefore, grain dust is a changing mixture containing different pollutants. 1t is the dust generated during the harvesting, drying, treatment, storage or processing of barley, wheat, oats, corn or rye, including all pollutants or additives in the dust

it involves industries and processes

it widely exists in the whole agriculture, transportation, storage and food and beverage industries

the following processes may be involved: 12. Loading and unloading: including loading, unloading, packaging, transportation and storage operations (all activities of grain seeds and animal feed are included)

possible contaminants

the type of contaminants will depend on the origin of grains. Pollutants may include: bacteria; Fungal spores; Actinomycetes and other similar bacteria; Microbial toxins such as endotoxin and mycotoxins; 1nsects and insect parts; Storage mites and their excreta; Weevils and their excrement; Animal hair; Pigeon feathers; From insect, animal excrement; Pollen; silicon dioxide; Soil particles; Fungicide, pesticide and fertilizer residues; Plant debris other than grain, etc

the workers who may be involved in the type of work

in the grain processing and production industry are easy to come into contact with grain dust, including drivers in the transportation process, inspectors or operators in the material transfer process, operators in the processing and feeding process, porters and inspectors in the grain storage process, etc< About identification and detection 1. as most grains grow in soil, untreated grain materials usually contain different degrees of soil, stone and other components, resulting in a certain amount of free silica in grain dust, The dust produced by unprocessed grain should be tested for the content of free silicon dioxide to determine whether it belongs to silicon dust (the content of free silicon dioxide is more than 10%). 1f the content of silicon dioxide is less than 10%, it should be considered as grain dust, otherwise it should be identified as silicon dust

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