Screw Press Dewatering Machine for Brewery Waste Mash Recycling

Product Description

Product Description

Screw Press Dewatering Machine for Brewery Waste Mash Recycling

Breweries generate a large amount of wet spent grain during the beer production process. Because freshly discharged spent grain contains a high level of moisture, direct transportation and storage can increase handling costs, create odor problems and reduce its storage stability.

The spent grain is produced during the mashing and lautering stages. As the soluble part of the malt is transferred into the wort, the insoluble and fibrous portion remains behind as BSG. Depending on the brewing conditions, fresh spent grain may contain around 80–85% moisture.

Screw Press Dewatering Machine for Brewery Waste Mash Recycling is designed to continuously separate free liquid from wet brewers' spent grain through mechanical screw pressing.

Working Principle 

Wet spent grain enters the feeding section of the Screw Press Dewatering Machine and is gradually conveyed forward by a rotating screw.

As the material moves through the pressing chamber, the available volume becomes progressively smaller. Mechanical pressure forces part of the liquid through the screen openings, while the dewatered solid material continues toward the discharge outlet.

The pressure at the outlet can be adjusted according to the characteristics of the material and the required dewatering performance.

This continuous working principle allows breweries to process spent grain without frequent manual unloading.

Wet Spent Grain → Feeding → Screw Conveying → Compression → Liquid Separation → Dewatered Grain Discharge

Product Feature 

1. Continuous Dewatering
The screw press is designed for continuous feeding and discharge, making it suitable for breweries requiring regular spent grain handling.

2. Reduced Moisture Content
Mechanical pressing removes a significant portion of free liquid from wet spent grain.The actual outlet moisture depends on grain characteristics, feeding conditions, screen configuration and machine settings. 

3. Lower Transportation Cost
Removing part of the water before transportation can reduce the weight and volume of the material being handled.

4. Easier Storage and Handling
Dewatered spent grain is easier to collect, convey and handle compared with freshly discharged wet material.

5. Multiple End Uses
After dewatering, the pressed spent grain can be further processed to animal feed, biogas production ,composting , further drying and pelletizing 

Specification

Model	Motor Power	Net Weight	Processing Capacity	Screw Inner Diameter	Dimension	Material
HTYZ-160	3KW	370kgs	0.5-1m³/h	160mm	1380*400*1500mm	SS304 + Carbon Steel
HTYZ-200	7.5kw	650kgs	2-5m³/h	200mm	2586*770*1400mm	SS304 + Carbon Steel
HTYZ-300	18.5kw	1500kgs	5-10m³/h	300mm	4142*890*1946mm	SS304 + Carbon Steel
HTYZ-400	22kw	3500kgs	10-15m³/h	400mm	4500*1000*2003mm	SS304 + Carbon Steel
HTYZ-500	55KW	4800kgs	15-20m³/h	500mm	5220*1100*2330mm	SS304 + Carbon Steel
HTYZ-600	75kw	7500kgs	20-30m³/h	600mm	6600*1300*2500mm	SS304 + Carbon Steel
Remark: 1.Motors, reducers are can be customized according to user and usage requirements.                2. Material: Standard material is SS304+carbon steel,  Full SS304 matrial would be also supply.

Product Application

Huatao Screw Press Dewatering Machine  used in many different application except Brewery Spent Grain

1.Fruit and vegetable juicing:Hawthorn, cherry, pomegranate, lychee, green fruit, papaya, ginkgo, rambutan, durian, Kumquat, peach, plum, mango, Wenzhou mandarin orange, red tangerine, Nanfeng mandarin orange, betel nut betel, watermelon, melon, pear, tangerine, orange, banana.
2.Dehydration of Chinese herbal medicine extracts:Clove, Gardenia, Ginseng,Cassia seed, root, Flower Green tea, , Viola Grape seeds.
3.Pulp dewatering: Wood fiber, bamboo fiber, wood pulp, straw pulp, reed pulp, sugarcane pulp, bamboo pulp, rag pulp, etc.
Dehydration of organic matter: Wine lees, vinegar lees, mushroom lees, cassava lees, carrots, onions, wax gourds, beets, water hyacinth,bagasse, chicken feathers, corn husks, wheat straw, fish paste, soy protein, etc.
4.Dehydration of food waste: Food waste, kitchen waste.

Packaging & Shipping

FAQ

1. What is a Screw Press Dewatering Machine?
A screw press dewatering machine is a continuous solid-liquid separation equipment that uses mechanical compression to remove liquid from wet materials. It is widely used for manure, food waste, brewery spent grain, sludge, digestate and other organic materials.

2. What materials can the Screw Press process?
The screw press can be used for various wet materials, including livestock manure, brewery spent grain, food waste, coffee grounds, fruit and vegetable waste, biogas digestate, agricultural residues and organic industrial waste.

3. How does the Screw Press work?
Wet material enters the machine through the feeding inlet and is conveyed forward by a rotating screw. During the conveying process, the material is gradually compressed, allowing liquid to pass through the screen while the solid fraction is discharged from the outlet.

4. What is the capacity of the Screw Press?
Processing capacity depends on the material type, moisture content, solids concentration, particle size and machine configuration. HUATAO can recommend a suitable model according to the required kg/h or tons/h capacity.

5. What moisture content can the machine achieve?
The final moisture content varies according to the material and operating conditions. Initial moisture, solids content, screen opening, screw configuration and compression pressure all affect the dewatering performance. Material testing is recommended when a specific moisture level is required.

6. Can the Screw Press operate continuously?
Yes. The machine is designed for continuous feeding, conveying, dewatering and solid discharge, making it suitable for industrial applications and continuous production lines.

7. Can the Screw Press be customized?
Yes. HUATAO can customize the capacity, screw configuration, screen, material, motor power, feeding system according to the customer's application.

8. How do I select the right Screw Press?
Please provide the material type, processing capacity, initial moisture, solids concentration, required outlet moisture and operating hours. Based on these parameters, HUATAO can recommend a suitable screw press model.