As we all know, making cow dung fertilizer is a good way to utilize cow dung. However, how to make cow dung fertilizer and what machines are necessary? We will give you professional introduction here. By composting, you can get nutrient-rich cow dung compost. If you want to make commercial cow dung fertilizer, you need to do more works, such as crushing, mixing, screening, granulating and packing. In order to manufacture high-quality organic fertilizer, cow dung fertilizer machine is necessary for you. And the detailed information of these machines is as below.
Before composting cow dung, you should pay more attention to water content of cow dung. Because improper water content will inhibit composting process and influence quality of compost. As we all know, the water content of fresh manure from cow or cattle are about 80%. But the proper water content for composting is 50% to 60%. In order to control water content better, you can adopt our cow dung dewatering machine to separate extra water from cow dung. What’s more, the dewatered cow dung is loosen and does not have caking, which is conducive to make compost. In addition, the lowest water content of processed manure can achieve 30% to 40%. You can adjust the dewatering degree according to your own requirements.
There are two types manure dewatering machines. One is solid liquid separator machine, and the other is inclined screen for solid/liquid separation. Both of them separate water from cow manure by squeezing. The cow dung enters equipment by pump. The separated water can be used for making biogas or liquid fertilizer. Meanwhile, the dewatered manure can be used for composting and make organic fertilizer. The material of parts that contact with manure is made up of 304 stainless steel, which is resistant to corrosion and has long service life.
In order to prolong their service life, you should clean the screen in time after operation. In addition, you can also adopt it to deal with chicken manure.
Composting is a process, where microorganisms convert compound organic materials to simple substance and produce a lot of heat. On the one hand, the structure of cow dung will become loose after composting.
Meanwhile, the successful composting will make cow dung into powdery compost. On the other hand, the produced heat will kill pathogens<, worm eggs and weed seeds in cow dung, so as to reach the harmless treatment
As mentioned above, composting cow dung includes preparation of raw materials and make compost. During composting, the preparations are the same. Besides cow dung, you can add some straw, rice hull, sawdust to adjust water content, C/N ratio and improve air permeability. However, you need to know the straw and rice hull should be crushed into small pieces. Because not crushed straw will create larger gaps in compost pile, which will slow fermentation process. If you want to from cattle, both the cattle manure and bedding are available.
Crushing process; for making fermented cow dung into fine and uniform powder
The role of crushing process is to deal with potential caking in fermented cow dung. Because the long-time stacking of cow dung during composting will cause bulks inside the compost pile. In this process, compost crusher is essential. It not only can crush large amount of cow dung compost into small particles in a short time, but also can save workforce and improve working efficiency. In addition, crushing process is important for both cow dung powder fertilizer production and granular cow dung fertilizer production.
In the screening process, impurities and over-sized particles will be selected out. That is to say, you can get uniform cow dung powder without impurities after this process. Just like crushing process, you also need to adopt machines;compost screen in this process. For dealing with large amount of cow dung compost, compost screen machine not only can save time and workforce, but also can make quality cow dung powder.
The nutrient content in pure cow dung compost is not enough to be used as commercial fertilizer. Generally speaking, cow manure compost is good base fertilizer for soil and plants. Therefore, if you want to produce commercial fertilizer, you need to add proper nutrient elements according to local soil conditions. In order to control the ratio of additive, you can adopt batching system, which can finish the batching of two types materials or more. At the same time, fertilizer mixing machine can help you to blend addictive and cow dung compost evenly.
Because of the convenience for application, transportation and storage, cow dung fertilizer pellets are also popular. We can provide you the following cow dung fertilizer machines to produce pellets, pan granulator, new type organic fertilizer granulator and rotary drum stirring granulator.
Easy-to-operate
pan granulator: Pan granulator consists of pedestal, reduction gear, granulation disc and so on. You can manufacture pellets with different sizes by adjust the angle of inclination.
New type organic fertilizer granulator: When the cow dung compost enter granulator, the stirring apparatus will push it forward. With the help of water or steam and the between the stirring teeth and the inner wall of granulator, cow dung gradually becomes pellets.
Rotary drum stirring granulator: It adopts centrifugal force and mechanical stirring force to make fertilizer pellets. In addition, when fertilizer pellets arrive at end part of this granulator, they will become more uniform and beautiful
In terms of commercial cow dung powder fertilizer, packing is important. Bagged fertilizer powder is convenient for transportation and storage. After composting, crushing and screening, cow dung has become quality fertilizer. You can use Our fertilizer packaging machine to bag cow dung powder fertilizer. Ourfertilizer packing machine can produce fertilizer with 25kg/bag and 50kg/bag. What’s more, it can finish the filling, weighing and sealing of bagged fertilizer. You just need to designate 2 persons in this process.