Internal circulation biological filtration deodorization device for livestock and poultry breeding house

Abstract

The invention discloses an internal circulation biological filtration deodorization device for a livestock and poultry breeding house, and belongs to the technical field of livestock and poultry breeding ventilation deodorization. The device comprises an air inducing device, a biological filtering device, an online waste gas concentration monitoring device and an automatic control device, the airinducing device is connected to a gas distribution device of the biological filtering device, the online waste gas concentration monitoring device is located on an air inducing pipe of the air inducing device, the online waste gas concentration monitoring device and the biological filtering device are separately connected with the automatic control device, and the automatic control device adjuststhe supply amount of a nutrient solution in the biological filtering device in real time according to waste gas concentrations monitored by the online waste gas concentration monitoring device in realtime, so that the internal circulation biological filtration deodorization is adjusted. The adopted biological filtration device is good in air permeability and water permeability, the automatic control device adjusts the supply amount of the nutrient solution in the biological filtering device in real time, and the circulating deodorization effect can be achieved.

Description

technical field [0001] The invention belongs to the technical field of ventilation and deodorization for livestock and poultry breeding, in particular to a circulating biological filtration and deodorization device in a livestock and poultry breeding house. Background technique [0002] The existing related invention patent (patent number CN200910107039.2) discloses a biological filtration deodorization device, including air duct, biological filtration tower, centrifugal fan and exhaust chimney; the biological filtration tower adopts circular inner tower and outer tower The double-tower structure is equipped with inorganic and organic mixed fillers. The upper part of the inner tower is provided with a ring-shaped air distribution channel, and the upper part of the outer tower is provided with a ring-shaped air collection channel, and the air distribution channel and the air collection channel are evenly arranged with slotted air outlets in a circular shape. The inner and ou...

AI Technical Summary

Problems solved by technology

[0005] 1. The filling water is mainly supplemented by air intake humidification and spraying above the biological filter tower. The former is not suitable for livestock and poultry houses because of the need for humidification space, and the latter is likely to cause uneven water content above and below the filling;

[0006] 2. Use pine bark, peat, pebbles, perlite, etc. as fillers. These fillers have the characteristics of heavy weight, poor air permeability, and small specific surface area. After long-term operation, the fillers will be compacted, which will increase the pressure loss of the entire set of equipment, resulting in The suction volume of the fan becomes smaller;

[0007] 3. The pore distribution of the above-mentioned filler is not uniform, which is not suitable for the flow of water and air, and it is easy to cause uneven distribution of bacteria, thus affecting the effect of exhaust gas purification

[0008] 4. Due to the poor air permeability and large pressure loss of the above-mentioned packing, the thickness of the packing should not be too thick, and the height of the equipment should not be too high, which will cause the equipment to occupy a large area

[0009] 5. The link between the strain nutrient solution supply device and the exhaust gas concentration monitoring device has not been realized. Once the concentration of the intake air fluctuates greatly, it is easy to cause poor growth of the strain, thereby reducing the deodorization efficiency

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