After a period of time in a rural household hydraulic digester, due to a part of the daily raw materials, the floating raw material floats under the action of buoyancy to generate scum and form crusts. The crust has become a prominent problem in the current rural hydraulic biogas digesters, which can lead to the obstruction of biogas accumulation in the pool, reduction of the effective volume and storage room, reduction of raw material utilization, and reduction of gas production. When the crust is serious, it often turns a well-end biogas digester into a "disease pool" or "waste pool." Here is a simple way to cleverly solve the problem of biogas tank crusting. Luck Medical Consumables Co.,LIMITED , https://www.luckmedical.com
The specific method is: when the biogas production in winter is low, the biogas in the biogas digester is used up, all the switches are turned on, the biogas digester is in the zero pressure state, and the biogas connection hose is removed from the air guide tube, so that the biogas produced by daily production is natural. Emissions to the air, continue to add water to the digester, so that the digester is full, let the digester stop running, "rest" 5 to 7 days. In this way, the dross in the upper layer of the biogas digester can be saturated with the biogas slurry. In the case of constant pressure, the dross will automatically fall down to form the sediment, and the biogas residue can be cleared out by an automatic slag discharge device.
Operation should pay attention to the following points:
1. During the rest period, it is forbidden to use an open flame near the mouth of the airway or to test the fire on the airway to prevent explosion.
2. At the same time when taking a break from the pool, a comprehensive inspection shall be carried out for each cover plate and the transmission and distribution system of the biogas digesters, and problems should be repaired and replaced in time to ensure the safe use of the biogas tanks. This method has a good effect on solving the dregs and crusts of biogas tanks, and farmers' friends may wish to try.