How to improve the fermentation efficiency of livestock and poultry manure organic fertilizer?

High-temperature composting technology generally uses aerobic tank fermentation to make compost, and uses a tank-type turning machine to ferment and turn the compost. If the output is large, a wheel-type turning machine can be used to ferment and turn. It can also be fermented and decomposed by strip chopping, and crawler compost turning machine or walking compost turning machine can be used to ferment, turn, throw and decompose. It can ensure sufficient high temperature to kill the parasites and roundworm eggs, as well as kill the vegetative cells of pathogens, kill weed seeds, and try to consume the energy in the materials such as carbohydrates, so as not to be applied to the soil in the future At the same time, the high temperature is the condition to consume the crude fiber in the manure and the hydrocarbon in the straw. If the crude fiber and the hydrocarbon in the straw are not removed, the hydrocarbon in the straw will be removed in the future. After this kind of fertilizer is applied to the soil, firstly, it will burn the roots, and secondly, because the carbon-nitrogen ratio of this kind of fertilizer is too high, it will cause a large amount of heat generation of microorganisms, and at the same time, they will compete for nitrogen sources in the soil to balance the carbon-nitrogen ratio, which will cause The unfavorable situation of competing with plants for fertilizers causes the roots and seedlings of plants to be slender and not strong; at the same time, use trough type compost turners to ferment and turn compost, impeller compost turners to ferment and toss, and use crawler compost turners and walking compost turners to ferment The aerobic fermentation by turning and tossing can ensure rapid fermentation, and keep farmers fully completing the decomposing process of straw in the short time between two crops.

In addition to adopting the chain-plate type turner and strip-cut crawler turner that can handle livestock and poultry manure to ferment and decompose, it can also be fermented in an aerobic manure fermenter, which has a short operating cycle and high processing efficiency. The heat generated by the fermentation of the fermenter increases. It can preheat the upper layer of feces, and is conducive to the flow of air and the supply of oxygen. The fermenter is divided into multiple layers, and each layer can be fermented. After the feces are put into the fermenter, the transfer and turning of the feces are realized by the rotation of the flap. The operation is simple, the energy consumption is low, and the floor space is small, and the maintenance is convenient; three. There are ventilation holes on the flap, and there are slits directly on the flap, and the air distribution pipes are arranged at the bottom of each fermentation chamber, which improves the ventilation capacity, reduces the energy consumption of the fan, and makes the air distribution more uniform. However, it is difficult for the staff to From the outside, I learned about the treatment of high-temperature fermentation of livestock and poultry manure in the farm. The high-temperature-treated livestock and poultry manure can be slowly dropped to the top of the transfer vehicle or on the receiving conveyor to complete the automation of the device, and the waste gas generated during fermentation is treated by a special waste gas processor. The exhaust gas treated by the processor meets the national emission requirements. The fermented and decomposed feces raw materials need to be aged and thoroughly decomposed in the aging field. The aging field is also called the secondary fermentation plant. The secondary fermentation generally takes 5-7 days, and the secondary fermentation time can also be determined according to the production volume, and the maximum should not exceed 20 days. The fermented product should show white mycelia inside and produce the aroma of distiller’s grains at the same time. The secondary fermentation field can also be used as a raw material storage field. The granules made from unfermented and decomposed raw materials are easy to swell after being bagged.

Next, the fermented raw materials are crushed, and a special grinder can be used to crush them to the granulation requirements, generally 0.5-0.08mm (24-50 mesh). At this time, the crushed raw materials are put into a horizontal mixer for granulation. Stir, add humic acid or supplement nitrogen, phosphorus, potassium, reinforcing powder, organic matter, to meet the formula requirements and meet the national standards. The stirred raw materials are pulverized by the chain pulverizer and then sent to the organic fertilizer granulator for granulation. When granulating, the angle of the granulator and the pressure of the water supply can be adjusted according to the required particle size to form a ball, and the ball forming rate can reach 95%. At this time, the finished particles are sent to the dryer for drying. The length and diameter of the dryer are determined according to the output. The particle stays in the dryer for about 30-40 minutes. Inside, the material is dispersed through the lifting device to fully absorb the heat. The heat is generated by the hot blast stove and sent to the dryer through the induced draft fan to dry the particles, absorb the water, and enter the dust removal room. The gas entering the dust removal room passes through After treatment, the air discharge requirements are met, and then discharged into the atmosphere to meet the air environmental protection requirements. At the same time, the dried semi-finished products are sent to the cooler for cooling. The feed temperature is generally 60-80 degrees, and the cooled material temperature is Generally around 30 degrees, then the cooled semi-finished product is sent to the screening machine for screening and classification. The particle size of the finished product is between 2.5-5.5, and the screened finished product is sent to the coating machine.

Send the large over-standard particles and small particles into the chain pulverizer after stirring for crushing and re-granulation. The finished particles sent to the coating machine are coated and then sent to the finished product warehouse (the coating machine has various Color to achieve the appearance of customer satisfaction, and the coating agent contains certain nutrients to achieve the purpose of slow release). The granules sent into the finished product warehouse are weighed and packaged by the automatic weighing and packaging machine. When weighing, they are packed according to the weight set by themselves. After sealing, they are finished organic fertilizers, which can enter the finished product warehouse or be loaded and shipped out of the factory.