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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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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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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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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Grinding systemThe Plaster uncooked substances in the storage bin are fed into the grinding laptop via a vibrating feeder for precision processing. An electromagnetic vibration feeder is established underneath the storage bin, which is interlocked with the mill to alter the furnish of substances in real-time based totally on the operation of the mill.
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Detailed explanation of Plaster grinding process flowStep 1: Large stones turn into small stonesThe large Plaster raw materials need to be first crushed by a jaw crusher until they can reach the feed fineness of the grinding machine.Step 2: Turn small stones into stone powderPlaster that meets the requirements for grinding fineness is sent to the Plaster particle silo by a lift machine, and then continuously and evenly fed into the grinding chamber of the Raymond mill for grinding processing by a vibrating feeder.Step 3: Stone powder gradingThe ground Plaster powder is graded by a powder selec
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At present, there are almost twenty giant paper gypsum board manufacturing strains beneath building and proposed in the country, of which six are manufacturing strains with an annual output of extra than 20 million m2.
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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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Some of the gear many times used in Automatic plaster computing device consist of crushers, grinders, calciners and packaging machines. The manufacturing capability of the Automatic plaster laptop may also differ relying on the dimension of the facility and the market demand for Plaster powder.Use of PlasterPlaster is a extensively used industrial and development material.
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Process and tools selectionAccording to the procedure requirements, the building plaster tools is generally divided into 5 parts, particularly the crushing system, grinding system, calcination system, storage and transportation system, and electrical manage system.Material transportation:The overwhelmed plaster uncooked fabric is transported by way of a hoist to a storage bin for backup.
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Application of Plaster mill for Plaster Powder ManufacturingPlaster mill is suitable for grinding limestone, dolomite, kaolin, talc, mica, bentonite and different low hardness materials.
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Plaster powder is one of the five gel materials and plays an important role in the national economy. Plaster powder production line is the natural dihydrate Plaster ore (raw Plaster) or industrial by-product Plaster (desulfurized Plaster, phosphoPlaster, etc.) calcined at a certain temperature. It is crushed to dehydrate and decompose the dihydrate Plaster.
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1. Jaw crusherThe feed particle dimension of the jaw crusher is ≤ 1200mm, the discharge particle dimension is 10-350mm, and the manufacturing potential can attain 1-1000t/h. Suitable for coarse crushing of giant blocks of Plaster, with robust crushing potential and excessive crushing ratio.2. Impact crusherThe feed particle dimension of the have an effect on crusher is ≤ 1300mm, with a manufacturing potential of 30-2000t/h.
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Crushing, grinding, calcination - Plaster Machinery process flowPlaster powder is one of the five major gel materials, which is processed through crushing, grinding and other processes. It is widely used in construction, building materials, industrial molds and art models, chemical industry and agriculture, food processing, medicine and beauty and other applications. It is an important industrial raw material.Plaster has good sound insulation, thermal insulation, and fire resistance characteristics. In China, natural Plaster reserves are abundant and have been used for a long time.
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Detailed clarification of Plaster grinding system flowStep 1: Large stones flip into small stonesThe giant Plaster uncooked substances want to be first overwhelmed with the aid of a jaw crusher till they can attain the feed fineness of the grinding machine.Step 2: Turn small stones into stone powderPlaster that meets the necessities for grinding fineness is despatched to the Plaster particle silo by using a carry machine, and then always and evenly fe
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Gypsum board production line Drying sectionThe paper gypsum board is fed into each layer of the 12 layer dryer by a bridge distribution machine according to the program. The dryer is divided into two zones, using hot steam as the heat source. While the hot air paper gypsum board slowly moves forward in the dryer, it continuously exchanges heat with the longitudinally flowing hot air. The board absorbs heat, and the temperature rises. The free water in the board slowly evaporates, but it does not damage the crystalline water of the dihydrate gypsum.
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Gypsum board manufacturing line Drying sectionThe paper gypsum board is fed into every layer of the 12 layer dryer by using a bridge distribution computing device in accordance to the program. The dryer is divided into two zones, the use of warm steam as the warmth source. While the warm air paper gypsum board slowly strikes ahead in the dryer, it always exchanges warmth with the longitudinally flowing warm air. The board absorbs heat, and the temperature rises.
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Jaw crusher: also called jaw crusher, referred to as broken jaw. Mainly responsible for the rough crushing processing of gypsum. The working principle of extrusion crushing is adopted. The crushing chamber is deep and there is no dead zone, which improves the feeding capacity and output, and the hourly production capacity can reach 2200 tons. The feed size is large and the crushing is uniform, which lays the foundation for the grinding treatment.
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Jaw crusher: additionally referred to as jaw crusher, referred to as damaged jaw. Mainly accountable for the tough crushing processing of gypsum. The working precept of extrusion crushing is adopted. The crushing chamber is deep and there is no lifeless zone, which improves the feeding potential and output, and the hourly manufacturing capability can attain 2200 tons.
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Based on over 20 years of research and development experience in plaster making equipment, Liming Heavy Industry Technology has developed a patented technology for the production of high yield and high energy plaster powder. This technology is a dry production method that achieves self grinding and self selection. Through a frequency conversion high-speed powder separator, plaster can be directly ground to meet the GB/T9776-2008 standard for building plaster, without the need for external screening or sorting.
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During the crushing stage of the Plaster powder manufacturing process, the measurement and specs of the extracted Plaster ore vary. According to the authentic situation, appropriate crushing gear is chosen for preliminary crushing treatment, and particles with a particle measurement of no extra than 35mm are crushed. 1.
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