Granular bio-organic fertilizer backflow type low-temperature drying machine

Abstract

The invention relates to the field of organic fertilizer treatment related equipment, in particular to a granular bio-organic fertilizer backflow type low-temperature drying machine. The granular bio-organic fertilizer backflow type low-temperature drying machine comprises a drying box, an air inlet hole is formed in the upper end of the left side of the drying box, a hot air cylinder is fixedly connected into the air inlet hole, an obstruction net is fixedly connected to the inner wall of the right end of the hot air cylinder, a drying cavity is formed in the upper end of the drying box, theleft end of the drying cavity is provided with a falling cavity which is downwards inclined from left to right, a fragment roll-out cavity is formed in the inner side of the lower end of the drying box, multiple sets of evenly-distributed screening holes are formed between the falling cavity and the fragment roll-out cavity, two sets of right supports are symmetrically mounted on the front and back sides of the bottom of the right end of the drying cavity, the upper ends of the right supports are rotatably connected with first rotating shafts, gears are fixedly connected to the middles of thefirst rotating shafts, according to the granular bio-organic fertilizer backflow type low-temperature drying machine, fertilizer fragments and saturated fertilizer can be well separated, the drying effect is good, and meanwhile, loading is convenient.

Description

technical field [0001] The invention relates to the field of equipment related to organic fertilizer treatment, in particular to a reflux low-temperature dryer for granular bio-organic fertilizers. Background technique [0002] Organic fertilizers are mainly derived from plants and or animals, and are applied to the soil to provide plant nutrition as a carbon-containing material whose main function is to process biomass, animal and plant waste, and plant residues to eliminate toxic and harmful substances. Rich in a large number of beneficial substances, organic fertilizers need to be dried before being put into use, and a dryer is required. [0003] The drying effect of the dryers in the prior art is often not very satisfactory. During the drying process, ungranulated powder will inevitably be produced. After drying, the granules need to be separated from the finished granules by a sieving machine, and the finished granules are sent to the packaging process. After the granu...

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Problems solved by technology

[0003] The drying effect of the dryers in the prior art is often not very satisfactory. During the drying process, ungranulated powder will inevitably be produced. After drying, the granules need to be separated from the finished granules by a sieving machine, and the finished granules are sent to the packaging process. After the granulated powder is recycled, it is sent to the granulator again for granulation. This screening process increases the transportation and turnover of a lot of materials, takes up a lot of space, and has low production efficiency. When drying, it is often only dried once, the drying effect is not very ideal, and there is no good auxiliary feeding mechanism in the actual operation process, it needs to be artificially loaded repeatedly, which consumes labor and the work efficiency is not high

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