Biological selenium fertilizer manufacture system with heavy metal removal function

Abstract

The invention discloses a biological selenium fertilizer manufacture system with a heavy metal removal function. The system comprises a selenium mineral powder pretreatment device, a biological heavymetal removal device, a mushroom planting device, a fermentation tank, a stirring device and a base fertilizer supply device, wherein a material inlet and a water inlet are formed in the upper part ofthe selenium mineral powder pretreatment device; a water outlet is formed in the lower part of the selenium mineral powder pretreatment device; an ultrasonic generator is arranged inside the seleniummineral powder pretreatment device; the biological heavy metal removal device is connected with the selenium mineral powder pretreatment device and comprises a box body and a stirrer; a filtering screen is arranged in the box body and divides space into three layers of structures; a first and second outlets inside the biological heavy metal removal device are communicated with the outside; the bottom of the biological heavy metal removal device is shrunk to form a discharge opening; the stirrer is obliquely arranged at the bottom of a fish filtering layer; the mushroom planting device comprises a planting box and a drip irrigation pipe; the drip irrigation pipe is communicated with the second outlet; the fermentation tank is communicated with the first outlet; a feeding opening is formedin the upper part of the fermentation tank; a pulp outlet is formed in the bottom of the fermentation tank; the stirring device is connected with the pulp outlet of the fermentation tank; the base fertilizer supply device is connected with the stirring device; the stirring device stirs and mixes received pulp and base fertilizer, so as to form a selenium-rich biological fertilizer.

Description

technical field [0001] The invention relates to the technical field of biological fertilizer production, more specifically, the invention relates to a biological selenium fertilizer production system with the function of removing heavy metals. Background technique [0002] The traditional bio-fertilizer production line or production system is equipped with multiple tanks with different functions, and the material is transported through the conveyor belt between the tanks. These tanks usually include fermentation tanks, mixing tanks, crushing tanks and granulation tanks, etc., such as The patent application number 2016101938742 discloses a bio-organic fertilizer production line, which includes several batching bins, conveyor belts, aerobic fermentation tanks, tipping machines, dryers, grading screens, and granulators. Traditional equipment is only suitable for the production of ordinary bio-organic fertilizers, and the production of selenium-enriched bio-fertilizers is ineffi...

AI Technical Summary

Problems solved by technology

Traditional equipment is only suitable for the production of ordinary bio-organic fertilizers, and the production of selenium-enriched bio-fertilizers is inefficient

[0003] The production system of selenium-enriched biological fertilizer generally includes bio-organic raw material fermentation device, selenium addition device, selenium pretreatment device, drying device and granulation device, etc. It is difficult for the existing biological fertilizer production equipment to meet these production processes

[0004] Mushrooms and fermenting bacteria can efficiently absorb and transform selenium, but it is necessary to solve the problem that mushrooms are easy to collect heavy metals before they can be used for mushrooms and fermenting bacteria

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