The principle of cow dung press is spiral extrusion solid-liquid separation technology. The main components are: body, screen, extrusion auger, reduction motor, discharge device and other components.
The solid separated from the cow dung dehydrator is dry and odorless. It is a good farmland fertilizer. It does not produce leachate during storage, and is convenient for transportation and storage. It can effectively improve the air environment of the livestock farm and solve the environmental pollution problem during the transportation of solid dung residue. After separation, the water content of the liquid part is about 60%, which is not easy to produce crusting and sedimentation during storage. The separated liquid nitrogen and phosphorus content is small, which can be diluted and used as irrigation water or fertilizer, and can be effectively absorbed by farmland crops.
The working principle of the vegetable press machine
The vegetable press machine uses the change of the volume in the squeezing chamber to produce a strong squeezing force on the vegetable to separate the juice. This squeezing force mainly comes from 2 aspects.
(1) Compression force
The screw shaft rotates clockwise along the direction of the slag outlet, the bottom diameter gradually increases and the screw pitch gradually decreases. When the vegetable is pushed by the screw shaft, the spiral cavity gradually shrinks, so that the pressure on the vegetable in the process of moving forward increases.
(2) Resistance
Resistance includes slag discharge resistance and friction resistance.
The slag tapping resistance depends on the gap. The gap is large, the pressure is small, and the juice output rate is low; the gap is small, the pressure is large, and the juice output rate is high.
Friction resistance includes the friction between the vegetables and the screw and the friction generated by the vegetable itself due to the unequal propulsion speed.Features of the vegetable press machine:
Made of 304 stainless steel which is easy to clean and not easy to corrode.
This vegetable press machine adopts a hydraulic press for dewatering. And the pressure can be adjusted according to your different needs.
High efficiency and simple operation.
Except for the inlet and outlet, the sealed structure of the vegetable press machine is adopted which is clean and hygienic to ensure food safety.
Screw press is a kind of equipment that uses physical extrusion to dehydrate. The material box enters the equipment and is squeezed step by step under the conveying of the screw auger. The excess water is discharged from the liquid outlet through the screen. The discharge port discharges the equipment. The screw press produced by our company has undergone hundreds of accurate theoretical derivation calculations and experimental tests, summed up the real effect feedback of many users in the process of using it for many years, and upgraded it to a series of mature equipment in an all-round way. Different technical parameters can truly achieve low energy consumption, high output, and low moisture, saving a lot of processing costs for the secondary recycling of materials.
The dehydration process of the screw press dehydrator is divided into two stages. In the first stage, the screw auger is used for dehydration. The screw auger is divided into three sections: the transmission section, the compression section and the discharge section. The transmission section ensures that the material enters the equipment smoothly. The stage becomes smaller, due to the gradual reduction of the transmission space, the pressure is gradually increased on the material, forcing the volume of the material to shrink to squeeze out the water; the second stage uses the material blocking device to dehydrate, when the material enters the spiral auger discharge section, the spiral The auger will apply axial thrust to the material to push it out of the discharge port, and at the same time, the material blocking device pressurized by the air pressure device will exert a reverse force on the material to be pushed out, thereby forming a squeezing force for two-stage dehydration of the material.
The cow dung press dehydrator is widely used in the dehydration of farm livestock and poultry manure. All kinds of livestock and poultry manure can be divided into solid organic fertilizer and liquid organic fertilizer after extrusion and dehydration. First, a rare problem in farm manure disposal is solved. Secondly, the separated solid organic fertilizer can also be sold at a higher price, increasing income. Our company's newly developed cow dung processor has a processing capacity of up to 30 cubic meters. Our equipment supports customized processing. Friends in need can contact us at any time
