Zhongtian Xinghuo Machinery’s screw press brings a new revolution to the vegetable waste dehydration industry.

With the booming development of the vegetable industry, the amount of vegetable waste is increasing day by day. If these wastes are not handled properly, they not only take up a lot of space, but also cause serious environmental pollution. Xinxiang Zhongtian Xinghuo Machinery, a national high-tech enterprise that has been deeply involved in the field of solid-liquid separation for many years, has keenly grasped this industry pain point and successfully developed a screw press suitable for dehydrating vegetable waste.

Zhongtian Xinghuo Machinery’s screw press utilizes an advanced physical extrusion dehydration principle, eliminating the need for an external heat source and significantly reducing energy consumption. Its screw auger, meticulously designed and mechanically calculated, employs a special process to increase axial thrust, effectively solving common problems in waste vegetable processing such as slippage, bridging, and material backflow, thus greatly increasing the processing capacity per unit time. Furthermore, considering the characteristics of waste vegetable materials, key components are coated with a wear-resistant layer, alloy blades are welded to the screw auger blades, and core components are made of 304 stainless steel, increasing wear resistance and providing excellent acid, alkali, and corrosion resistance, greatly extending the equipment’s service life.

In practical applications, this screw press performs exceptionally well, significantly improving the dehydration efficiency of vegetable waste and drastically reducing its volume. This volume and weight reduction effect is very noticeable, facilitating subsequent resource utilization. Whether for producing organic fertilizer or other processing, it becomes more convenient and efficient.

In the future, we will continue to increase our R&D investment, continuously optimize the performance of the screw press, and contribute more innovative technologies and high-quality equipment to the vegetable waste dehydration industry and solid-liquid separation field, helping the industry achieve green and sustainable development.

Screw press dewatering process for various fruit pomace

Screw presses utilize a specialized screw extrusion technology to efficiently separate water and solids from fruit pomace. The equipment boasts advantages such as compact structure, high dewatering efficiency, and low energy consumption, making it widely used in fruit pomace dewatering within the fruit processing industry. Below is a detailed introduction to the dewatering process of common fruit pomace using a screw press:

Pretreatment

1. 1. Crushing/Homogenization: Crushing or mixing the fruit pomace (e.g., apple pomace, grape pomace) improves dewatering efficiency.
   2. Adjusting Moisture Content: If the pomace is too dry or too wet, auxiliary materials (such as rice husks) can be added or the moisture content adjusted to optimize the pressing effect.

Feeding

Feeding is done evenly via a screw conveyor or manually, avoiding blockages or uneven pressure.

Pressing and Dewatering

1. Screw shaft speed adjustment (usually 5-30 rpm), pressure range 0.5-2.0 MPa, adjusted according to the characteristics of the fruit pomace.

2. Segmented pressing: The first stage uses low pressure to discharge free water, while the second stage uses high pressure to expel bound water.

Slag Discharge and Liquid Collection

1. Dry slag (moisture content approximately 50-70%) can be used as feed, compost, or fuel after discharge.
2. Liquid (juice, pectin solution) is recycled after filtration through a screen.