Spray drying technology of soil remediation type microbial agent

Abstract

The invention discloses a spray drying technology of a soil remediation type microbial agent. The technology comprises the following steps: a diaphragm pump arranged at a spray part pumps in the microbial agent, pressurizes the microbial agent and then introduces the microbial agent into a plurality of spray devices arranged at the upper part of a drying bin, and the microbial agent is atomized inthe upper part of the drying bin; a hot air part arranged at the side upper part of the drying bin performs primary drying on the atomized microbial agent through a first air inlet tube for directlyfeeding air into the drying bin, a second hot air tube arranged at the hot air part feeds air into the interlayer of the drying bin, and a plurality of air inlets are arranged in the inner wall of thedrying bin to carry out secondary drying on the incompletely-dried atomized microbial agent and make the drying bin in an overall high-temperature state; and an air outlet tube used for discharging tail gas is arranged at the lower part of the drying bin, a dust removal part filters the tail gas, the microbial agent generated by filtering is collected for the second time, and the filtered tail gas free from the microbial agent is discharged out of the dust removal part. The designed spraying devices improve the spraying effect of the spray drying process, so the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of microbial bacterial agent production technology, in particular to a spray drying process of soil remediation microbial bacterial agent. Background technique [0002] Microbial agent refers to the live bacterial preparation made by processing the fermentation liquid of the target microorganism by using porous material as an adsorbent after industrial production and expansion; microbial agent is generally used as raw material after fermentation, and then sprayed Drying treatment, spraying to form dispersed particles first, increasing the contact area with hot air, and then drying by hot air into spherical particles, so that the microbial agent is easy to store and transport, and has good solubility; however, The current technology uses a single tank, single nozzle and single hot air input port for the spray drying process of microbial agents, resulting in low work efficiency and incomplete drying, and after...

AI Technical Summary

Problems solved by technology

[0002] Microbial agent refers to the live bacterial preparation made by processing the fermentation liquid of the target microorganism by using porous material as an adsorbent after industrial production and expansion; microbial agent is generally used as raw material after fermentation, and then sprayed Drying treatment, spraying to form dispersed particles first, increasing the contact area with hot air, and then drying by hot air into spherical particles, so that the microbial agent is easy to store and transport, and has good solubility; however, The current technology uses a single tank, single nozzle and single hot air input port for the spray drying process of microbial agents, resulting in low work efficiency and incomplete drying, and after the drying is completed, the exhaust air at the air outlet will contain part of the formed microorganisms The finished product of bacterial agent causes waste on the one hand, and pollutes the environment by air exhaust; therefore, it is an urgent problem to be solved to design a soil remediation type microbial bacterial agent spray drying process with multi-spray device and multi-air port drying dust removal

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