What dewatering machine is used for bamboo pulp in paper mills?

1. Key Advantages in Bamboo Pulp Processing

Bamboo pulp, a vital raw material for pulping, papermaking, and fiber processing, typically has a moisture content of 80%–85% and fiber lengths of 1.5–2.5mm. The Belt Press Dewatering Machine offers distinct advantages tailored to these properties:

• High Efficiency: Tests at a bamboo pulp plant in Sichuan show the machine processes 20–25 tons of wet bamboo pulp per hour, reducing moisture to 38%–42%. It outperforms traditional screw dewatering machines by 40% in throughput while retaining over 93% of fiber integrity, preventing breakage from excessive squeezing.
• Low Energy Consumption: Equipped with a variable-frequency hydraulic drive system, it consumes only 10–14 kW·h per ton, saving 30% energy compared to plate-and-frame filter presses. For an annual throughput of 20,000 tons, this translates to approximately $20,000 in electricity cost savings.
• Continuous Operation: Designed for seamless integration with bamboo pulp production lines, the machine operates continuously without frequent stops for filter cloth replacement, minimizing downtime.

2. Technical Features of the Belt Press Dewatering Machine

The machine’s design addresses bamboo pulp processing challenges effectively:

1. Three-Stage Gradient Dewatering: It employs gravity drainage, wedge-shaped pre-pressing, and high-pressure squeezing zones to first remove free surface water, then progressively extract water from fiber gaps. This ensures over 90% dewatering uniformity, avoiding uneven “outer-dry, inner-wet” results.
2. High-Performance Filter Belt: The polyester spiral-woven filter belt, with pores optimized for bamboo pulp fibers, prevents fiber loss. Its smooth surface resists pulp adhesion, and an automated high-pressure spray cleaning system reduces clogging by 60%, extending maintenance cycles to 50–60 days and cutting maintenance frequency by 25%.
3. Intelligent Control: A PLC system monitors pulp moisture and squeezing pressure in real-time, automatically adjusting belt speed to accommodate fluctuations in impurities (e.g., bamboo knot fragments). This ensures stable dewatered pulp quality, meeting standards for papermaking and nonwoven fabric production.

3. Diverse Applications of Dewatered Bamboo Pulp

With intact fibers and optimal moisture content, dewatered bamboo pulp supports versatile applications:

• Papermaking: Used for tissue and packaging paper, bamboo pulp offers 15% higher fiber strength than wood pulp, enhancing tear resistance. A Guangxi paper mill reported an 8% increase in product qualification rates using this pulp.
• Fiber Processing: After bleaching and spinning, bamboo pulp transforms into bamboo fiber fabrics for clothing and home textiles, offering 1.5 times the moisture absorption and breathability of cotton, aligning with green textile trends.
• Biomass Materials: Mixed with resin, it forms bamboo fiber boards for furniture and decorative materials. A Henan company achieved formaldehyde emissions well below national standards and reduced raw material costs by 20%.
• Agricultural Use: As an organic fertilizer carrier, dewatered bamboo pulp, mixed with livestock manure for fermentation, leverages its fiber pores to enhance nutrient retention, supporting sustainable agriculture.

The Belt Press Dewatering Machine delivers efficient, low-energy, and stable performance, empowering the bamboo pulp industry to achieve green, high-efficiency production across diverse applications.