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Baoshen Chain Plate Continuous Drying Kiln Introduction
After nearly 40 years of development, Baoshen Group has gradually grown into one of the top ten manufacturers of wall material machinery and equipment in China and a group corporation of the "leading enterprise" in the national building material machinery industry.
In order to adapt to the trend of "diversification of brick-making raw materials, high porosity, high quality and self-decoration", Baoshen Group has independently developed a complete set of equipment for wet billet chain plate type rapid drying kiln in response to the many defects in the one-step firing process. The cost of this equipment is basically the same as that of the one-time stacking and firing process, and the investment in the traditional two-time stacking and firing process is greatly reduced.
Baoshen chain plate rapid continuous drying kiln has obtained the national utility model patent (patent number: ZL201821820625.2). This technology is one of the preferred solutions for new construction and renovation of brick & tile enterprises.
The chain plate type fast drying kiln is a new type of drying equipment for double-fired brick adobe developed by Shaanxi Baoshen Machinery (Group) Co., Ltd. (patent number: ZL201821820625.2). The chain plate type fast drying kiln overcomes the complex problems in the cumbersome drying process of the traditional upper and lower shelf cutting code transportation system, simplifies the production process, improves the drying quality and efficiency, reduces the drying energy consumption, has less investment, and is suitable for a variety of significant advantages of the product.
Baoshen chain plate type rapid drying kiln is mainly composed of four parts: wet billet marshalling system, drying circulation system, temperature detection & control system and dry billet unloading system.
This equipment adopts multi-stage independent PID control, the drying atmosphere is uniform, the chain plate conveying speed can be adjusted by frequency, the operation is stable, and the best drying effect is achieved.
1. Wet Billet Grouping & Loading：
The bricks cut by the cutting machine are stacked according to the stacking pattern of the kiln car and put on the upper and lower chain plates of the chain plate drying kiln for drying through marshalling by the stacking machine.
2. Drying Cycle：
The bricks entering the chain plate drying kiln, according to the raw material properties of the product and the brick type, adjust the running speed of the chain plate by controlling the temperature, humidity, wind pressure, and air volume, and then use them after preheating, steam cycle maintenance, moisture removal, and heat delivery. The bricks are dried up to the requirements of high-level stacking.
3. Tempereture Detection And Control System:
4. Drying Billet Grouping & Unloading System：
The bricks dried by the chain plate rapid continuous drying kiln are clamped and placed on the stacking group by the lower frame stacking machine in an orderly manner, and are stacked on the kiln car by the stacking unit through the grouping and stacking system.
· Technical Advantages
1). Advantages of regulations and policies: The chain plate type rapid drying kiln developed by Baoshen Group is in line with national industrial policies, which is conducive to promoting the industry to better implement the "Environmental Protection Law" and "Solid Waste Law", and implement the spirit of the No. 279 document of the Ministry of Industry and Information Technology.
2). Advantages of solid waste utilization: Solid waste has two different characteristics: one is high plasticity, high water content, high shrinkage, and high sensitivity, such as making bricks from rivers, lakes, mud, and urban sludge; the other is low plasticity, low Viscous, low crack resistance, such as slag, fly ash, chemical slag, construction soil and other bricks. These solid waste raw materials are made of bricks by a one-time stacking firing process, which is easy to deform and crack. Chain plate type fast drying kiln, single-layer or low-layer drying, there is no problem of compression deformation and cracking, and it is more conducive to the utilization of various solid waste residues.
3). Advantages of green body drying: The chain plate type rapid drying kiln extracts the waste heat from the kiln cooling belt through the pipeline, and enters the drying kiln circulation fan at multiple points. The mixed hot and humid air passes through the green body repeatedly from bottom to top through the circulation fan, ensuring The surroundings of the green body are evenly heated and shrink freely. By adjusting the frequency of the moisture exhaust and heat supply circulation fans, the section temperature, pressure, and humidity of different sections of the drying kiln are ensured, and stress cracks caused by drying shrinkage are avoided.
4). Advantages of energy saving and consumption reduction:
The chain plate type rapid drying kiln has good overall thermal insulation performance, fully utilized heat exchange, and high drying efficiency. The energy consumption per kilogram of products is about 260kcal, which can save about 10% compared with traditional one-time code firing, and the energy saving effect is remarkable.
5). Advantages of product upgrading:
With the further strengthening of the national policy of banning sticking, banning solid waste and recycling of solid waste, the chain plate type rapid drying kiln is suitable for the production of hollow bricks and insulation blocks, and is more suitable for the production of solid waste raw materials. Utilization has laid the foundation for the company to develop multi-variety and multi-standard products in the future.
6). Advantages of exhaust gas emission: Chain plate type quick drying kiln has sufficient hot air exchange, the tidal air volume is only 1/2 of the traditional one, and the equipped fan is small, which saves power consumption and is conducive to the emission of air pollutants up to the standard.
7). Advantages of firing operation: After the green body is dried by the chain plate type fast drying kiln, the drying shrinkage has been completed, and there is no need to consider the drying shrinkage during firing, and the shrinkage stress of the green body is greatly reduced during firing, and there will be no kiln collapse or inverted kiln accidents during firing; Eliminates or reduces noodle "embossing" and black hearts. The height of the stacking kiln is increased by 20-50%, and the output of the kiln is greatly increased.
8). Advantages of construction and installation: Standardized production in the factory, short processing period, good quality, avoiding wet construction in tunnel drying room; high efficiency of on-site construction and installation, short commissioning period, and low maintenance cost.
9). Adaptable and adjustable advantages:
The chain plate type fast drying kiln is equipped with temperature, pressure, humidity, and wind speed sensors to realize the airflow balance of the drying kiln, the upper and lower temperatures are consistent, the humidity of each drying section is kept constant, and the adjustment of the technical parameters of the drying kiln is simpler and more convenient. . The drying speed can be adjusted for different raw materials; the stacking height can be adjusted for different products; the air inlet position and hot air circulation system can be adjusted for the air supply temperature and pressure.
(To be continued......)