Machinery For Fiber Cement Board

Water Tank and Cement Tank Process

The system consists of a clean water tank and a slurry tank; both tanks are welded from carbon steel. The slurry tank is used to recycle circulating water from the board production process. The slurry is used for mixing and slurrying, while the clean water tank is used to collect clean water for regular cleaning of the felt and mesh cages.

Pulp Process

The pulp process includes a shredder, a refiner, and a pulp storage tank. The shredder is used to shred kraft paper. The refiner grinds the pulp into slurry and pumps it to the pulp storage tank. The pulp storage tank is used to store the pulp.

Flow-On Slurry Vacuum Dewatering Process

Sheet forming can be done using either a Flow-On Slurry Forming Sheet System or a Hatschek-type Forming Sheet System, which we can customize to meet customer requirements.

The mixed slurry flows into the headbox and is then transferred from the headbox to the running felt to form the slurry layer. The slurry is then vacuum-dewatered and rolled onto the breast roll to form the sheet layer. After lamination, the sheet layer is formed onto the drum roll and then automatically cut into flat wet sheets. Air-water separator: Used to separate the gas-water mixture extracted from the vacuum tank and flow it into the water collection well, where the air is pumped back into the vacuum pump.

Flow-On Slurry Sheet Forming Process

After the sheet is formed by the forming rollers, it is automatically laser-positioned and cut, and the entire wet sheet enters the conveyor.

High-Pressure Waterjet Cutting System

This high-pressure waterjet cutting system is our company's proprietary equipment. It uses an imported high-pressure water pump to generate high-pressure water, which neatly cuts the wet sheets on the conveyor belt.

Wet Sheet Forming and Wet Sheet Conveying Process

This process transports the cut wet sheets from the forming rollers to the designated position and automatically trims the edges.

Automatic Stacker

Two sheets can be stacked at a time. Suction cups pick up wet sheets from the receiving conveyor and formwork on the other station's trolley and stack them on the intermediate trolley (vacuum extraction by a high-pressure blower). The suction cups' full motion is achieved by a hydraulic actuator driving a gear on a swing arm.

PLC control for automated operation. Function: The automatic palletizer is used for sorting and palletizing high-quality and low-quality products such as fiber cement boards and calcium silicate boards.

Products are stacked in an orderly manner with a high degree of automation, effectively improving production efficiency.

Press

The press is used to increase the density and strength of products.

Standard pressure: 7000 tons, press table dimensions: 1350 x 2700/3200mm, pitch: 1200mm, working stroke: 400mm, press speed: 0.05 to 0.25mm/s; return speed: 15mm/s.

Inlet and outlet press transport vehicle: 1 unit. Power: 27.5 kW

Trolley Traction System

Permitted Load: 20 tonnes

Trolley Track Internal Distance: 750 mm

Travel Mechanism:

Reducer Model: fa67-60-y-1.5, I=50

Matched Motor Speed: 1380 rpm, Power: 1.5 kW

Trolley Travel Speed: 9 m/min

Vacuum Demolding Machine

The movement of the trolley and the lifting and lowering of the suction cup are controlled by a servo motor.

The demolding machine separates the formwork from the sheet on the trolley. The formwork is then oiled by an oiling machine, and the sheets are stacked on the other side of the trolley. An autoclaved staggered spacer is added every 150 mm of sheet material.

The suction cup's vertical movement is achieved by a pneumatic actuator driving a gear on a swing arm.

PLC control, automated operation.

Autoclave Sterilization Process

Due to the characteristics of fiber cement board/calcium silicate board, lime and quartz sand powder are the primary raw materials in the production process. Chemical reactions require high temperature and high pressure to achieve a perfect blend of all the raw materials and achieve optimal hardness and strength.

Boiler

During the production process, fiber cement board/calcium silicate board is processed using autoclaves and dryers. The heat energy for the autoclaves and dryers is provided by the boiler.

Dryer

This is used to dry fiber cement board/calcium silicate board. After autoclave curing, the moisture content of the fiber cement board is approximately 25%. Prior to sanding, edging, and chamfering, the moisture content should be reduced to below 15% in the dryer. This dryer offers advantages such as high production efficiency, attractive appearance, easy maintenance, and simple operation.

Trimming System

The trimming machine primarily consists of a paper feed roller conveyor, a longitudinal trimmer, a turning table, a transverse trimmer, a paper discharge roller conveyor, an electrical control cabinet, and a wind control cabinet.

The trimming machine is used to trim and trim fiber cement boards before palletizing them into finished products.