Gypsum board production equipment

                                                        Gypsum board production equipment

The production equipment of paper faced gypsum board is the production equipment for making paper faced gypsum board by taking building gypsum as the main raw material, adding an appropriate amount of additives and fibers as the board core, and taking special board paper as the cover.
Batching part
Material preparation:
After quantitative measurement, the modified starch, retarder, pulp, water reducer and water are put into the hydraulic pulper to mix into raw material slurry, and then pumped into the slurry reserve tank for standby;
Put the foaming agent and water into the foaming agent preparation tank in proportion, stir evenly, and pump them into the foaming agent storage tank (with heating device and above 35 ℃) for standby;
Coagulant and gypsum powder raw materials enter the silo for standby through the lifting and conveying equipment;
mixed ingredients:
The slurry in the slurry storage tank is pumped into the mixer by the metering pump, the foaming agent is foamed by the dynamic foaming device and then enters the mixer, the accelerator and gypsum powder are measured by the full-automatic metering belt scale and then enter the mixer, and then all main and auxiliary materials are mixed into qualified stone paste slurry in the mixer.
explain:
The addition of all main and auxiliary materials is included in the automatic control system, which is automatically adjusted with the speed of the production line to meet the requirements of large-scale and high speed
Forming and conveying part
After the upper paper is uncoiled, it enters the forming machine through the automatic deviation correction machine. After the lower paper is uncoiled, it enters the forming machine through the automatic deviation correction machine, scoring machine and vibration platform for mixing
The slurry of the machine falls onto the lower paper of the vibration platform and enters the molding machine. The gypsum board of the required specification is extruded on the molding machine, and then the initial setting is completed on the solidification belt and the final setting is completed on the conveying roller table. It is cut into the required length (2400mm, 3000mm or other) through the fixed length cutting machine, and turned by the 1# transverse machine. After turning, the two gypsum boards leave the 1# transverse machine at the same time, and then use the closing roller table to make the spacing between the two boards meet the requirements, It is distributed into the dryer through the distributor for drying
Drying part
The oil fired heat-conducting oil furnace is used as the heat source. The hot oil is sent to the dryer through the fan after the hot air is exchanged by the fin heat exchanger to complete the drying task. The dryer is divided into two areas, which can well complete the drying curve of gypsum board drying and avoid defects such as over burning and non drying. The process has the advantages of environmental protection, energy saving, high thermal efficiency and easy control of process parameters.
2# transverse part
After the dryer completes the drying task, it is sent to the 2# transverse system through the board discharging machine to complete the fixed length trimming and full-automatic edging of gypsum board, and then sent to the automatic stacker for stacking through the finished product conveyor. After stacking, it is transported to the packing area by forklift for inspection and packaging, and the whole production process is completed
Main technical indexes that should be considered when selecting gypsum board: breaking load, water absorption, surface water absorption, stability in case of fire and flame propagation coefficient.
The sound insulation performance and fire resistance of the wall shall also be considered for the internal partition wall of gypsum board.
Relevant specifications
1. See table 1.1-1 for the type, composition and applicable building grade
Table 1.1-1 types and applicable building grades of gypsum board
Kind
Applicable building grade
Ordinary paper faced gypsum board (code P)
commonly
Advanced ordinary paper gypsum board (code GP)
Medium, higher or higher grade
Water resistant paper faced gypsum board (code s)
commonly
Advanced water-resistant paper gypsum board (code GS)
Medium, higher or higher grade
Refractory paper faced gypsum board (code h)
commonly
Advanced fire-resistant paper gypsum board (code GH)
Medium, higher or higher grade
Advanced water-resistant and fire-resistant paper gypsum board (code GSH)
Medium, higher or higher grade
Ordinary decorative paper faced gypsum board (code ZP)
Medium, higher or higher grade
Damp proof decorative paper faced gypsum board (code ZF)
Medium, higher or higher grade
Note: Decorative gypsum board is a board used for interior decoration with paper gypsum board as the base material and its front surface after coating, embossing, film pasting and other processing.
2. See table 1.2-1 for specifications
Table 1.2-1 specifications (mm)
length
1800、2100、2400、2700、3000、3300、3600
width
900、1200
thickness
9.5、12.0、15.0、18.0、21.0、25.0。 There are still 12.7 and 15.9 implementing foreign standards.
Note: plates of other specifications and sizes can be produced according to user requirements.
3. See table 1.3-1 for executive standards
Table 1.3-1 executive standard of gypsum board
type
Executive standard
Ordinary paper faced gypsum board (code P)
GB/T9775-1999
Advanced ordinary paper gypsum board (code GP)
The main indicators are higher than those in GB / t9775-1999
Water resistant paper faced gypsum board (code s)
GB/T9775-1999
Advanced water-resistant paper gypsum board (code GS)
Astmc630 and GB / t9775-1999
Refractory paper faced gypsum board (code h)
GB/T9775-1999
Advanced fire-resistant paper gypsum board (code GH)
ASTM C36 and GB / t9775-1999
Advanced water-resistant and fire-resistant paper gypsum board (code GSH)
ASTM c630m-00 and GB / t9775-1999
Ordinary decorative paper faced gypsum board (code ZP)
JC/T997-2006
Damp proof decorative paper faced gypsum board (code ZF)
J
Equipment characteristics
1. Lb-4 hydraulic automatic walking gypsum wallboard forming machine integrates the advantages of similar equipment at home and abroad, solves the disadvantages of traditional gypsum wallboard, such as heavy weight, low strength, poor water and moisture resistance, and the overall performance of the equipment has reached the leading level in China;
2. The core components of the equipment are made of imported materials, with excellent quality, small floor space, convenient operation and high production efficiency;
3. The product has good flatness, small error, deformation resistance, adjustable length and durability;
4. One set of equipment can produce gypsum boards of various thicknesses and specifications, such as 60mm, 90mm, 120mm and 150mm;
5. The equipment forms two gypsum wallboards at one time, and the raw materials are measured automatically to ensure the quality and accuracy of wallboards;
6. The hydraulic opening and closing die is adopted, the core pipe is made of new silica gel material, and the air pressure expansion mode is designed to reduce the pipe pulling resistance to zero and the damage rate of formed plate to zero. The threading and drawing of pipes are completed simultaneously, and the core pipe does not need to be flushed;
7. The key components and parts of the gypsum board forming machine are international well-known brand products, and the core parts have undergone fatigue durability test and reliability test, so as to ensure the stable operation of the equipment and minimize the failure rate.