Taishan Ruifeng specializes in manufacturing paper-faced gypsum board machines and relative spare parts, and proceed the customized design based on customers’ requirements like quality、quantity、raw materials and so on.
Annual capacity : 2 mln sq.m—20 mln sq.m
Descriptions of production technologies ：
The paper-faced gypsum board machines take the building gypsum as raw material that is mixed together with some moderate additives and fibers to make the board core which is covered by specially-made paper as a protection to finally produce the paper-faced gypsum boards out. For production of paper-faced gypsum boards, we our company adopts the hot-oil drying technology、the interactive drying technology ( heat-conducting oil and hot air) and complete hot-air technology to fully satisfy the demands from different customers.
System structure: this production line is divided into batching part andforming&conveying part.
Batching part : preparation and batching
Preparation : modified starch、retarder、paper slurry、water reducer and water after being calculated are together put in the hydraulic crusher to stir into slurry materials which then are pumped into slurry storage tank for standby.
The foaming agent and water are proportionally put into the foaming agent making tank where the foaming agent and water are stirred uniformly and then are pumped into the foaming agent storage tank ( with heating device to keep temperature above 35℃) for standby.
The coagulant and raw gypsum powder are delivered into silo for standby through lifting and conveying devices.
Batching: the slurry material in storage tank is pumped into the mixer by use of metering pump, the foaming agent is foamed by the dynamic foaming device and then get into mixer, and the coagulant and the gypsum powder are calculated by using fully automatic belt and then get into mix. Finally, all main and subsidiary materials are mixed and stirred to form the qualified gypsum slurry.
Forming and conveying part: form part of drying、drying part and 2# transverse part.
Form part of drying: the upper paper gets into the forming machine after it uncoils through the automatic deviation-rectifying machine, the bottom paper gets into forming machine after it uncoils through automatic deviation-rectifying machine、scratch machine and vibrating platform. The slurry in mixer falls down on bottom paper of vibrating platform and then move into forming machine, and then forming machine squeezes the gypsum board out with required specification. Gypsum board completes the initial setting on drying belt and completes the final setting on conveying roller bed, the required length ( 2400mm、3000mm or others) of board is cut out by the fixed-length cutting machine and then two sheets of gypsum board simultaneously leave after they turn on the 1# transverse, finally they are distributed by distributor and then get into dryer for drying after the closing roller bed makes their spacing reach the requirement.
Drying part : this part takes the heat-conducting oil boiler ( oil-fired type) as the heat source, the oil makes the hot air out by the pin heat exchanger and then hot air is sent into dryer by fan to complete the drying mission. This dryer comprise of two sections, and it can better complete the drying curves of gypsum board and avoid defects like over-burning、non-drying and so on. This technology features environment protection、energy conservation、high thermal efficiency and easy control of technological parameters.
2# transverse part : after gypsum board is fully dried in dryer, it is sent to 2# transverse system to complete the fixed-length edge cutting and fully automatic edge sealing, and then it is sent to automatic staking machine for stack through the conveying machine of finished product. After the stack, it is delivered by the forklift to the packing area for inspection and packaging, and then all set of production procedures is completed.
Technological flow chart as follow：
Production line for local figure：