China Light Industry Changsha Project, China light and medium project
Sodium chloride (NaCl), the appearance is white crystal, its source is mainly in seawater, is the main component of salt. Soluble in water, glycerin, slightly soluble in alcohol, liquid ammonia; Insoluble in concentrated hydrochloric acid. Slightly deliquescent in air. Relatively good stability, industrial for the manufacture of soda ash and caustic soda and other chemical products, ore smelting, life can be used for condiments.
The continuous disc dryer is a kind of efficient conductive continuous drying equipment. Its structure and working principle determine that it has the characteristics of high thermal equivalent efficiency, low energy consumption, small footprint, simple configuration, convenient operation and control, good operating environment, etc., widely used in chemical industry, medicine, pesticide, food, feed, agricultural and sideline product processing and other industries drying operations. It has been well received in various industries. Now the production of atmospheric pressure, closed, vacuum three types. 1200, 1500, 2200, 2500, 3000 five specifications, S (carbon steel), B (contact material part uniform stainless steel), C (on the basis of B, add steam pipe, spindle and support for stainless steel, cylinder and top cover lining stainless steel). Three kinds of materials, drying area of 4-180M2, a total of hundreds of models of series products, and can provide matching seed player auxiliary equipment, can meet the needs of users for various materials drying.
The wet material self-feeder is continuously added to the drying disc of the first layer above the dryer, and the rake arm with the rake blade is rotated to make the rake blade continuously turn over the material. The material passes through the surface of the drying tray along the exponential helix, and the material on the small drying tray is transferred to the outer edge, and falls to the outer edge of the large drying tray below the outer edge, and the material moves inward on the large drying tower and falls into the next layer of small drying tray through the middle blanking port. The size of the drying tray is arranged alternately up and down, so that the material can flow continuously through the entire dryer. The heating medium in the form of saturated steam, hot water and heat conduction oil is passed into the hollow drying disc. The heating medium enters from one end of the drying disc and is exported from the other end. The dried material falls to the bottom of the shell from the bottom drying pan, and then is transferred to the discharge port by the rake blade. Moisture escapes from the material. The moisture of the vacuum disc dryer is extracted by the vacuum pump located on the top cover. Dry material discharged from the bottom layer can be packaged directly. By adding fin heater, solvent recovery condenser, bag dust collector, dry material return mixing wood structure, induced draft fan and other auxiliary machines, it can improve its drying production capacity, dry paste and heat sensitive materials, can easily recover solvent, and can carry out pyrolysis and reaction operations.
1, easy control, strong applicability. The drying process can be achieved well by adjusting the thickness of the material layer, the spindle speed, the number of rake arms and the size of rake wikstrobe. Each layer of drying disc can be separately passed into the hot medium or cold medium, heating or cooling the material, the material temperature control is accurate and easy. The residence time of the material can be precisely adjusted. The material flow is single, no backmixing phenomenon, uniform drying, stable quality, no need to mix.
2. Simple and easy operation. The dryer is very simple to start and stop. After the feed is stopped, the transfer dirt rake can quickly empty the material in the dryer. Through the special large-size view of the door mirror, the equipment can be carefully cleaned and observed.
3, low energy consumption. The material layer is very thin, the spindle speed is low, and the power required to supply the material to the system is small and the power consumption is low. Conduction heat for drying, high thermal efficiency, low energy consumption. Continuous operation, high thermal efficiency. The disc continuous dryer is dried by means of conduction and heat transfer. During the drying process, only a very small amount (or no air) is passed into the dryer, and the tail gas is very small, so its thermal efficiency can reach more than 65%.
3, good operating environment, recyclable solvent, dust emission meets the requirements. Atmospheric pressure type: Because the airflow speed in the equipment is low, and the humidity in the equipment is low, the dust is difficult to float to the top of the equipment, so the exhaust gas discharged from the top exhaust temperature outlet almost does not contain dust. Closed type: equipped with solvent recovery device, can easily recover the organic solvent in the wet gas. The solvent recovery device is simple, the recovery rate is low, for flammable, explosive, toxic and easily oxidized materials, nitrogen can be used as a wet gas for closed cycle, so that it is safe to operate. Especially suitable for the drying of flammable, explosive and toxic materials.
4, easy installation, small footprint. The dryer is delivered as a whole, transported as a whole, just need to be hoisted into place, and installation and positioning is very easy. Due to the vertical layout of the drying tray layer and vertical installation, the drying area is large and the floor area is small.
1、 Organic chemical products
Polyvinyl chloride resin, polytetrafluoroethylene resin, fumaric acid, anthraquinone, nitroanthraquinone, p-aminophenol, melamine, cyanuric acid, p-aminobenzenesulfonic acid, antioxidant 168, naphthol As, stearate, aniline, nitroaniline, dipentaerythritol, chlorinated paraffin, calcium formate, triethylene diamine, EDTA, rubber accelerator, benzodiazine Organic chemical raw materials and intermediates such as sodium sulfonate, isophenic acid, sodium dimethyl pentasulfonate, thiourea, oil-soluble aniline black dye, acid black dye, indigo, etc.
2、Inorganic chemical products
Light calcium carbonate, active calcium carbonate, nano-scale ultra-fine calcium carbonate, magnesium carbonate, sulfur concentrate, pyrite, copper-nickel ore, aluminum hydroxide, white gray black, strontium carbonate, barium carbonate, potassium carbonate, Leaded powder, insurance powder, silicon powder, barium sulfate, potassium sulfate, microspheres Catalyst, magnesium hydroxide, copper sulfate, nickel sulfate, ammonium nickelate, sodium molybdate, sodium chloride, cryolite, red iron oxide, nickel oxalate, cobalt oxalate, black iron oxide, lithium hydroxide, nickel hydroxide, zirconium hydroxide, calcium phosphate, sulfur, etc.
3、 Medicine and food
Ampicillin cyanine toxin, salt, L-phenylglycine and intermediates, cefaminothiazine, ceftriazine, Anaxine, cimetidine, vitamin B12, vitamin C, medicinal salt, medicinal aluminum hydroxide, medicinal magnesium metasilicate, caffeine, tea, flower extract, ginkgo biloba leaf, chocolate powder, starch, corn germ and other raw materials and pharmaceutical intermediates.
4、 Feed, fertilizer
Potassium carbonate, biological potassium fertilizer, protein feed, feed with aureomycin, mycelium, bran, wine grains, seeds, herbicides, cellulose, feed calcium hydrogen phosphate, etc.
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