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Application and function of dry wet separator



Source: unknown Author: admin Date: 2018-07-11 13:44 Browse:

Dry wet separator treatment

Dry wet separator (also known as pig manure dehydrator, pig manure processor, pig manure solid-liquid separator) is a large-scale pig manure dehydration equipment. It can be widely used for dehydration of animal manure (pig manure, chicken manure, duck manure, rabbit manure, cow manure, etc.).

1. Working principle:

The pig manure treatment separator pumps the fecal water to the main engine through the non blocking slurry pump, and pushes the fecal water to the front of the main engine through the extrusion screw auger. The moisture in the material is extruded out of the screen under the action of side pressure belt filter, and the separator continuously pushes the fecal water to the front of the host machine, and the pressure in front of the main machine increases continuously. When it reaches a certain degree, the discharge port will be pushed open and squeezed Through the counterweight under the main engine, the working efficiency and moisture content can be adjusted according to different requirements. The waste water can be discharged into the biogas tank after being extruded into the biogas digester or discharged into the sewage tank after being extruded into the biogas tank. After solid-liquid separation, COD and BOD in pig manure water are greatly reduced, which is convenient for subsequent discharge. The separated pig manure water can be directly discharged into the biogas digester for biogas fermentation. The fermented pig manure residue is a very good organic fertilizer liquid, and can also be discharged into the aeration tank for aeration environmental protection treatment.

2. Dehydration of pig manure and its application

(1) the dry pig manure after dry and wet separation has almost no odor and little viscosity. It can be used as base fertilizer and topdressing fertilizer. It has long fertilizer effect and stable fertilizer property. It can supplement nitrogen, phosphorus, potassium and trace elements in the soil, enrich the organic matter of soil, overcome the shortcomings of common application of chemical fertilizer to harden the soil, and play a role in improving the soil. It has been proved by practice that the fertilizer efficiency is better than other fertilizers under the same growth conditions;

(2) the solid feces after dry and wet separation are easy to transport and can be sold at high prices;

(3) the liquid feces after dry and wet separation are directly discharged into the biogas digester. The biogas digester will not be blocked and the service life of the biogas digester will be extended. The biogas generated can be used for heating and domestic fuel in the plant area;

(4) the manure after dry and wet separation is mixed with straw bran, fully stirred, added with bacteria fermentation, granulation can be made into compound organic fertilizer;

(5) the feces after dry and wet separation can be used to cultivate earthworms, plant mushrooms and feed fish, which can increase certain economic benefits for the farm;

(6) the nutrient concentration of feces after dry wet separation is high, which is easy to decompose, absorb quickly and last for a long time;

(7) the manure after dry and wet separation is a kind of thermal fertilizer, which can promote the development of crop roots, enhance the photosynthesis of crops, increase the sweetness and beauty of crops, and increase the yield and income.


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