Study On The Multi-Function Device's Exploitaion And Efficiency Inanaerobic Reactor Of Biogas Engineering

Construction of biogas project is effective way to solve large-scale livestock farms produce a lot of dung, a scientific and rational use of dung resources to solve the surrounding issues such as environmental pollution and energy shortages. Anaerobic digestion biogas plant is the core of the whole project. Static fermentation digester running for some time, the fermentation solid to liquid ratio for the problem of raw materials, natural subsidence appears stratified, seriously affected the normal digester gas, reduces the efficiency and effectiveness of animal waste treatments. We summarize the current lack of effective anaerobic fermentation tank mixing, cloth, vaccination and other devices based on the design and installation of a biogas anaerobic reactor, a multifunctional device.Multi-function device body for the 'people' chevron wool brick wall structure, wool brick wall on both sides of the wall to set the department has inoculated tubes, inoculated tube inside and outside the body out of the wall, the device ontology enrichment within the microbial proliferation under the bed for the gas, the device body with an external front-end connection with the anti-static blower forced mixing of gas main channel, gas forced mixing head road and set the decice on the body of the pneumatic mixing nozzles connected.The device set pneumatic gas mixing and automatic mixing of biomass as a whole, with baffle, fabric, solid, inoculation, air stirring, broken shells and other functions. 'people' device either side of the wall on just the material into the digester liquid from friction and reduce the feed flow rate, liquid level Fangxiang Shun device along the horizontal direction smooth multi-faceted three-dimensional baffle, fabric embedded into the pipe network, Trickle into the rich microbial proliferation bed methane, and methane have full access to microbial strains, inoculated from top to bottom, from inside to outside baffle and fabric. Gas circulating through the anti-static blower pressurized to produce strong air flow, lower sedimentation tanks was blown layer, slurry writhed up and down with the air bubble will break up the upper layer of scum, so that liquid material suspended in the digester in a balanced.This was the device's pneumatic test mixing method inorder to verify muti-function devices of practical science. Determination of daily digester gas production to non-air mixing digester gas production for the control, select the installation method of the optimum combination of air stirring. Four-level two-factor test, the time interval between the two factors for the stirring and mixing duration, four levels for 12 hours, 24 hours, 36 hours, 48 hours, 6 minutes, 9 minutes, 12 minutes, 15 minutes, a total of 16 treatment trial. The results showed that:1. Mixing interval of 24 hours duration of 15 minutes stirring the combination of the highest gas production, compared with no air stirring daily digester gas production, an increase of 40.70%; Mixing interval of 24 hours duration of 12 minutes stirring combination of gas production times, compared to non-air mixing on digester gas production, an increase of 40.65%; Mixing interval of 48 hours duration of 6 minutes stirring the combination, on the lowest gas production, compared to non-air mixing on digester gas production, an increase of 11.79%; Following the cost-effectiveness principle reached, stirring interval of 24 hours duration of 12 minutes stirring combination of the best.2. Under the same interval in the stirring, mixing of different duration, gas production continued with the stirring time increased; under the same duration in the mixing, stirring interval of 12 hours and 24 hours, with the interval of time, gas production increased; under the same duration in the mixing, stirring interval of 24 hours, 36 hours and 48 hours, with the interval of time, gas production decreased.