Sand discharge equipment of anaerobic fermentation tank

Abstract

The invention discloses sand discharge equipment of an anaerobic fermentation tank. The sand discharge equipment comprises a driving part and a hall sensor, wherein the driving part is located outsidethe fermentation tank, a sand discharge opening is formed in the bottom of the fermentation tank, the driving part is connected with a sand scraping arm fixing seat at the bottom of the fermentationtank by virtue of a rotating shaft, a sand scraping arm is installed on the sand scraping arm fixing seat, and a magnet is arranged in a position, which is opposite to the hall sensor, of the upper part of the rotating shaft. According to the sand discharge equipment, sand which is deposited at the tank bottom in the fermentation tank is cleaned without dead angle in a scraping mode, and the sandis pushed to the sand discharge opening, so that the problem of shutdown and tank cleaning of the whole waste treatment plant due to incapability of normal operation of an anaerobic system because ofaccumulation of impurities in the fermentation tank is solved. The sand discharge equipment has the advantages of simple design, convenience in use and good effect and has wide application prospects.

Description

technical field [0001] The invention relates to the field of organic waste treatment, in particular to an anaerobic fermentation tank row sand settling equipment. Background technique [0002] In recent years, with the continuous improvement of my country's scientific and technological level and the continuous acceleration of urbanization, people's material life and consumption levels have been steadily improved, and there has been a phenomenon of rapid increase in the amount of organic waste generated in places such as catering industry, food processing industry, and even households. Untreated or improper treatment of these organic wastes will seriously affect the water environment and urban environment, seriously endangering food safety and human health; and people's awareness of environmental protection is gradually increasing, and the effective treatment methods of these organic wastes are also sought by people from all walks of life. Closely. [0003] Organic waste ref...

AI Technical Summary

Problems solved by technology

At present, some companies use anaerobic fermentation tanks with conical bottoms. The conical bottom has holes. The grit is naturally precipitated due to its high specific gravity and then pumped out to pump the grit. The bridge phenomenon prevents the sand from being further discharged through the sand discharge port, so the sand discharge effect cannot be achieved; some companies open multiple sand discharge ports at the bottom of the anaerobic fermentation tank for sand discharge, but the sand in the unopened part still produces accumulation, unable to discharge

Some companies directly place the sand suction collection pipe at the bottom of the fermentation tank, but because the position of the pipe mouth is fixed, it can only suck the sand at the mouth of the pipe, but still cannot solve the sand at the bottom of the tank; some companies It adopts the form of desanding the material first, and then sending it into the fermentation tank, but no equipment can achieve a 100% treatment effect. The material still contains sand and enters the digestion tank. Due to the huge daily processing capacity of the digestion tank, sand settling within one or two years piles up on the bottom of the tank

[0005] This is because the anaerobic fermentation tank is a closed environment, and the accumulation of sand in the tank cannot be inspected visually. When the accumulation of sand is found, it is often a few meters of sand accumulation that seriously affects the effective volume of the fermentation tank and may affect the equipment in the tank. cause damage

In addition, a large number of microorganisms in the tank support the operation of the fermentation tank. The microorganisms need a stable and suitable reaction environment, so it is not suitable to clean the tank and remove sand, and the shutdown of the tank will bring huge economic losses to the entire food waste treatment plant.

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