A kind of sludge composting experimental equipment and method

Abstract

The invention relates to sludge composting experiment equipment and method. The sludge composting experiment equipment comprises a fermenting tank, wherein a foam insulation board is adopted at the side surface around the fermenting tank as a side plate, a plurality of gas distributing trenches are uniformly distributed on a terrace in the fermenting tank along the longitudinal direction, a space inside the fermenting tank is divided into a plurality of gas distributing sub-regions, each gas distributing sub-region is internally provided with the gas distributing trenches with same quantity, a gas supplying branch pipe is arranged at the middle of each gas distributing sub-region, a four-way pipeline is arranged on a joint of the gas supplying branch pipe and the gas distributing trenches, the gas supplying branch pipe comprises a gas distributing cross pipe and a gas distributing vertical pipe, the gas supplying branch pipes in the plurality of gas distributing sub-regions are led upwards out of the fermenting tank along the pool walls at two sides of the fermenting tank, the gas supplying branch pipes are respectively connected into gas supplying header pipes at two sides of the fermenting tank, and the gas supplying header pipe is connected with a plurality of centrifugal blowers positioned near the fermenting tank. According to the sludge composting experiment equipment, the defect of influence on an aerobic fermentation process by fermentation aeration cutout or short-stream in the prior art is solved, a distribution manner of oxygenation gas distribution in the fermenting tank is perfected, the gas distributing area is increased, and thus the whole aerobic fermentation pile body is oxygenated uniformly.

Description

technical field [0001] The invention belongs to the field of sludge composting experiments, in particular to a sludge composting experimental equipment and method. Background technique [0002] Sludge compost is a great soil conditioner. When compost is used in agricultural fields, it can increase organic matter, improve soil structure, reduce the amount of fertilizer used, and can reduce the potential erosion of soil. Composting is a process in which organic matter is continuously degraded and stabilized through the action of microorganisms under certain conditions, and a product suitable for land use is produced. [0003] The main resistance of the sludge composting system is concentrated in the air distribution pipeline system, accounting for more than 80% of the total resistance. Therefore, for the sludge fermentation aeration system, the uniformity of pipeline resistance distribution will directly affect the uniformity of aeration, and the degree of influence is relat...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of sludge composting experimental equipment and method to solve the defects of the prior art fermentation aeration interruption or short flow affecting the aerobic fermentation process, and improve the arrangement of oxygenation and gas distribution in the fermentation tank method, increasing the gas distribution area, so that the entire aerobic fermentation pile is evenly oxygenated

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