Ceramic Fiber Paper Production Line

1. Basic components of ceramic fiber paper production line

(1) Pulping system:

Function: Mix ceramic fiber raw materials (loose cotton) with water and binder (such as silica sol, phosphate) to make uniform fiber slurry.

Equipment: Pulper, pulper, mixing tank.

(2) Forming system:

Function: Dehydrate the slurry into wet paper blanks through papermaking process.

Equipment: Fourdrinier papermaking machine, rotary papermaking machine or inclined wire forming machine (select according to the thickness and uniformity requirements of paper base).

(3) Drying system:

Function: Remove moisture from wet paper blanks and solidify the fiber structure.

Equipment: Hot air drying box, roller dryer (divided into low temperature and high temperature sections, the temperature is usually 100~300℃).

(4) Post-processing system:

Function: Surface treatment, cutting or rewinding of dried fiber paper.

Equipment: Calender (to improve flatness), slitting machine, rewinder.

(5) Auxiliary systems:

Water supply/air supply system, dust removal equipment, electronic control system (automatic control of production parameters).

2. Core process flow

01 Raw material preparation:

Ceramic fiber raw materials (such as short fibers produced by melt blowing method) are crushed and impurity-free, and then mixed with binders and dispersants in proportion.

02 Pulping:

The fibers and water are fully dispersed in the pulper to form a uniform pulp with a concentration of about 1%~3% (the fiber length is usually 0.5~3mm).

03 Papermaking:

The pulp is evenly spread on the forming net through the headbox, and is vacuum dehydrated and squeezed by the pressing roller to form a wet paper blank (thickness 0.5~5mm).

04 Drying and curing:

The wet paper blank enters the drying kiln with the mesh belt, and the moisture content is reduced to below 3% through hot air circulation or infrared heating, while the binder solidifies the bonding force between the fibers.

05 Slitting and packaging:

The dried fiber paper is calendered and cut into specified sizes (such as standard paper rolls or flat sheets), and packaged and put into storage after quality inspection.

3. Product characteristics and application areas

Product characteristics:

High temperature resistance (600~1400℃, depending on the type of fiber), low thermal conductivity (0.03~0.06W/(m・K)), thermal shock resistance, easy processing (can be cut and punched).

Main applications:

Industrial insulation: kiln lining, pipe insulation, high temperature equipment gasket.

Electronics/electrical appliances: heating element insulation layer, oven sealing gasket.

Aerospace: engine insulation components, fireproof partitions (must meet flame retardant standards).

Special fields: nuclear power equipment insulation, fire protection and fireproof materials (such as fire curtain interlayer).

4. Development trend

Energy saving: use heat pump drying and waste heat recovery technology to reduce energy consumption.

High performance: develop low chlorofluoride and more corrosion-resistant ceramic fiber paper (such as for chemical kilns).

Intelligent: introduce online detection systems (such as real-time monitoring of thickness and humidity) to improve product consistency.

5. FAQ

Q1: Can the ceramic fiber paper production line produce ceramic fiber paper of different materials?​

A1: Yes. Due to different operating temperatures, it can produce standard, high aluminum, zirconium and other ceramic fiber papers of different materials.

Q2: How much is the equipment investment for the ceramic fiber paper production line? ​

A2: The equipment investment for a small production line is about 2 million to 5 million yuan, and the investment for a medium-sized production line (including plant and environmental protection facilities) is about 8 million to 15 million yuan.

Q3: What is the thickness range of the ceramic fiber paper produced by the ceramic fiber paper production line? ​

A3: The current common production thickness range is 0.5 to 13mm. With the advancement of technology and process optimization, the thickness may be thinner in the future.

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