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If the flue gas desulfurization gypsum and coal powder from power plants are not treated in a timely and reasonable manner, a large area of land will be utilized, and even unnecessary secondary pollution will be brought to the environment. Desulfurization gypsum from power plants has the characteristics of high taste and small particles. However, with the widespread application of gypsum method and limestone/wet lime in thermal power plants in China, the production of desulfurization gypsum has rapidly increased due to its by-products.
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Each nozzle is equipped with multiple air outlets, which can freely adjust different wind directions of each nozzle, so that the moisture content error of the same gypsum board in different parts does not exceed 1%Forced dehumidification by fan is conducive to the drying of gypsum board.When adjusting the temperature of the dryer, the cooling and heating adjustment reaction is rapid.The hot blast stove automatically adjusts the coal feeding amount according to the flue gas temperature, with high thermal efficiency.
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This method is still widely used in the domestic ceramic industry.Pressure steaming method for frying pasteThis method first preheats the raw Plaster with a block size of 25-50mm after coarse crushing in hot air at 60 ℃, and then places it in a pressure cooker for 5-7 hours with saturated superheated steam at 1,3 atmospheric pressure (125 ℃). Then, hot dry gas at 200 ℃ is introduced until hot dry gas is discharged, resulting in a vapor pressure of hemihydrate Plaster.
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A fluidized bed boiler is a rectangular vessel with a porous gas distribution plate at the bottom. There is a vertical partition inside the furnace, which divides the furnace into two parts, and there are a number of heating tubes inside. At the top of the furnace is a bellows connected to the furnace.The powder is filled into the furnace regularly, and the air is blown into the bottom of the furnace through the air distribution plate to realize the fluidization of the powder.
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Annual capacity/M2Day capacity(sheet)1200×2400×9mmDrier layerControl system2Million23004PLC4Million46006PLC6Million69008 DCS1. Preparation of clinker: The primary uncooked cloth is desulfurization gypsum, with the essential factor being CaSO4.2H2O, which can be bought after kiln conversion β Type semi hydrated gypsum is constructing gypsum.2.
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According to customer needsMATERIALPlaster, chalk, clay, slurry and filter cake.APPLICATIONHeating Plant of limestone desulfurization project, stone powder maker for high-grade highways, coal grinding mill in environmental protection type boiler plant, the mill in mining firms.Introduction of raw materials of Automatic plaster machineThe Plaster ores are crushed into small granules of the size less than 30mm, conveyed to mills to complete selecting and separating, and then the qualified powder are delivered into fluidized bed boiler for calcinations while the rest return to the mill.
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Plastering Equipment is to grind natural dihydrate Plaster ore (raw Plaster) or industrial by-product Plaster (desulfurization Plaster, phosphoPlaster, etc.) through a dedicated grinding machine and heat and calcine it at a certain temperature to dehydrate and decompose the dihydrate Plaster, resulting in β The product with hemihydrate Plaster (CaSO4.1/2H2O) as the main component is building Plaster (commonly known as Plaster). In summary, there are several main Plastering Equipment processes for Plaster powder:(1) Calcine Plaster blocks and then crush them.This method first places Plaste
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Plaster grinding main equipment introductionPlaster powder is the bulk of Plaster for a series of treatment of the powder, the finished particle size is usually about 80-325 mesh, from the entire production process of Plaster grinding, the need to use the equipment mainly jaw crusher, Raymond mill and so on.Jaw crusher: also called jaw crusher, referred to as broken jaw. Mainly responsible for the rough crushing processing of Plaster. The working principle of extrusion crushing is adopted.
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The charging of the batching workshop adopts electric crane, and the working area of the crane covers the whole batching workshopThe dust collector of the batching workshop is arranged outside the workshop, and the dust removal points include scoring machine and mixing mixerThree control part: single outlet, trimming specification 2 ~ 3M, equipped with edging machine, 2 stacking platforms, bag dust collector and dust collector arranged outside the workshopGuard board saw, waste board crusher, and attached bag dust collectorQuantity of production line crossing the bridge: one No.
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Plasterboard machinery Drying system: including dryer, transmission system, heat exchanger, fan circulation system, dehumidification system and other equipment. During the process of gypsum board walking in the drying kiln, the internal water is evenly removed to keep the water content of gypsum board finished products in the range of 2% - 3%.
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Plasterboard machinery Cutting part: including fixed length cutting machine, acceleration roller table and conveyor belt. This part of the equipment mainly completes the fixed length cutting of gypsum board. The cutting length range is 2400-6000mm. The cutting machine adopts servo cutting, and the service life and cutting accuracy are greatly improved.
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Differences in material selection for gypsum coresHigh quality gypsum board uses high-purity gypsum ore as the raw material, while inferior gypsum board lacks control over the purity of the raw material. Low purity gypsum ore contains a large amount of harmful substances, which can greatly affect the performance of gypsum boards. Clay and salt can affect the bonding performance of paper surface and gypsum core.
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Capacity/M2Specification /mmShaping Number（piece）/timeShaping time/hourlengthheightthickness100,000 666mm 500mm （80－230mm）85－7120,000105－7150,000125－7200,000165－7250,000185－7300,000215－7350,000245－7
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Strong equipment processing capacityOur company has high-precision processing equipment (CNC blanking, cutting, planing, automatic welding, shot blasting and other equipment), which can independently control the processing accuracy and quality of the equipment.Our company has advanced testing equipment and perfect quality control means.
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Uses of Fire Resistant Gypsum Boards from gypsum board machine: When a high level of fire protection is required in ceilings and drywall, this product is ideal.Water-Resistant Gypsum Board from gypsum board machine: Water Resistant Gypsum BoardsThis type has water-repellent face paper and a water-resistant gypsum core.
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After being cut into the required length by a fixed length cutting machine, it is turned by a horizontal machine, After turning, the two gypsum boards leave the horizontal machine at the same time, and then use a close roller to ensure that the spacing between the two boards meets the requirements, and then enter the dryer for drying through the distribution machine.Gypsum board equipment Drying sectionUsing a boiler to provide steam as a heat source, the steam is exchanged for hot air through a heat exchanger and then sent to the inside of a truffle dryer to complete the drying task.
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In order to reach the above requirement, our company have researched and developed a whole set of boiling furnace processing technology, the main material is good-quality steel. For example, heat conductive oil pipe adopts seamless steel pipe (GB3087-82). Steel plate adopts carbon steel and low-alloy steel (GB713-86) ; Frame steel adopts international product .Furthermore , in the work of welding , all the workers have work certificate , after welding , the coil pipe will have a water pressure test , just in case of leakage of heat conductive oil .
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The finished product area can be divided into: dry plate collection section, emergency picking system 1, horizontal transfer of dry plates, dry plate lamination machine, pushing and cutting and trimming machine, emergency picking system 2, edge wrapping machine, storage machine, automatic padding mechanism, and stacking machine according to the process of dry plate transportation. This area also has different layouts and classifications based on the production speed of gypsum boards.
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Gypsum that has been overwhelmed and heated to cast off 75% of its water content material is acknowledged as plaster of Paris. When water is delivered to this first-class white powder, the ensuing cloth is without difficulty molded into any favored shape. Upon drying, the reconstituted gypsum regains its rock-like characteristics whilst preserving the favored shape.
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The whole process of gypsum block consists of gypsum powder construction and block preparation. The influence on environment mainly lies in gypsum powder construction. The powder dust, cinder and smoke released by it are very smaller in comparison with other building materials; therefore, it will be enough to take general controlling measure. The gypsum block is solid in opalescent colour. The surface of the block is smooth and plane with straight edges. The grooves and tongues are made on the vertical and horizontal sides for easy construction.
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Plaster Product IntroductionPlaster powder is one of the five gel materials and plays an important role in the national economy. It is an important industrial raw material, widely used in construction, building materials, industrial molds and art models, chemical industry, agriculture, food processing, medical cosmetology and other application fields. Our company has accumulated a wealth of equipment application and production experience in the field of Plaster powder. And provide equipment and project construction services for a number of Plaster powder manufacturers around the world.
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Plaster grinding most important gear introductionPlaster powder is the bulk of Plaster for a sequence of remedy of the powder, the completed particle measurement is commonly about 80-325 mesh, from the complete manufacturing system of Plaster grinding, the want to use the tools typically jaw crusher, Raymond mill and so on.Jaw crusher: additionally referred to as jaw crusher, referred to as damaged jaw.
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With the rapid development of China's economy, paper gypsum board as a new building materials light board in the main product, in the building decoration industry has been rapidly promoted and applied, the current domestic demand for supply situation, many enterprises are also actively planning to use domestic or the introduction of foreign advanced technology and equipment investment in the construction of gypsum board projects.
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Because the keel is made of wood, attention must be paid to fire prevention. The standard practice is to evenly apply fireproof coating on the surface of the keel, wait for the entire keel to turn white, and then nail it on the wall to ensure that the area in contact with the wall is also coated with fireproof coating.After the fireproof treatment is completed on the surface of the keel, the assembly can begin. The workers will use a nail gun to fix the joint of the two keels at an angle of 45 degrees.
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