Detailed description

Material overview:

        Salt refers to a class of compounds that combine metal ions or ammonium ions (NH4 +) with acid ions or non-metal ions. Such as sodium chloride, calcium nitrate, ferrous sulfate, ammonium acetate, etc., such as calcium sulfate, copper chloride, sodium acetate, generally salt is the product of metathesis reaction, salt reacts with salt to form new salt and new salt, salt It reacts with alkali to generate new salt and new base, salt and acid to generate new salt and new acid, such as sulfuric acid and sodium hydroxide to generate sodium sulfate and water, sodium chloride and silver nitrate to generate silver chloride and sodium nitrate. There are also other reactions that can generate salts, such as displacement reactions. The solution of the soluble salt is conductive because there are ions that can swim freely in the solution, so it can be used as an electrolyte. Hydrochloric acid is not only an important product of salt chemical industry, but also an important raw material for producing silicon materials. Salt is a kind of crystal.

Overview:
    XSG series rotary flash dryer is a new type of drying equipment developed by our factory on the basis of introducing and absorbing advanced foreign technology. The machine has advanced technology, reasonable design, compact structure, wide application range, large production capacity, good product quality, high efficiency, energy saving, drying, crushing and sieving in one device, eliminating environmental pollution, and achieving the performance International advanced technology level.

Principle: The
    hot air enters the stirring and crushing drying chamber from the bottom of the dryer at the appropriate spraying speed through the inlet pipe, which produces strong shearing, blowing and rotating effects on the material, so the material is divided by centrifugation, shearing, collision and friction Micronization enhances heat and mass transfer. At the bottom of the dryer, the larger and more humid pellets are mechanically broken under the action of the agitator, and the particles with lower moisture content and smaller granularity are entrained and raised by the rotary airflow and further dried during the ascent. The gas-solid two-phase rotation flow, the solid-phase inertia is greater than the gas phase, the relative velocity between the solid-gas two phases is greater, strengthen the mass and heat transfer between the two phases, so the machine has high production intensity.
Features:
● A variety of feeding devices are available for selection. The feeding is continuous and stable without bridging during the process.
● A special cooling device is installed at the bottom of the dryer to avoid the deterioration of the material in the high temperature area at the bottom.
● Special air pressure sealing device and bearing cooling device can effectively extend the service life of the transmission part.
● The special air distribution device reduces the resistance of the equipment and effectively provides the air volume of the dryer.
● The drying room is equipped with a grading ring and a swirling sheet, the material fineness and final moisture can be adjusted. (For example, the final moisture of calcium carbonate can be adjusted to ≤0.1%)
● Compared with other drying methods, it can effectively increase the proportion of materials.
● The circumferential air velocity in the drying chamber is high, and the residence time of the material is short, which effectively prevents the material from sticking to the wall and the deterioration of the heat-sensitive material.
Applicable materials:
● Inorganic: boric acid, calcium carbonate, hydroxide, copper sulfate, iron oxide, barium carbonate, antimony trioxide, various metal hydroxides, various heavy metal salts, synthetic cryolite, etc.
● Organic matter: Atrazine (pesticide insecticide), lauric acid, benzoic acid, benzoic acid, bactericidal dan, sodium oxalate, cellulose acetate, etc.
● Ceramics: kaolin, silica, clay.
● Dyes: anthraquinone, black iron oxide, indigo pigment, butyric acid, titanium hydroxide, zinc sulfide, various azo dye intermediates.
● Foods: soy protein, gelatinized starch, distiller's grains, wheat sugar, wheat starch.

technical parameter:

 Note: 1. The water evaporation is based on the inlet air temperature of 200 ℃ and the outlet air temperature of 80 ℃. 2. The installed capacity is the basic data, which can be changed according to the material performance. 3. The floor space is arranged according to the actual situation. The data in the table is for reference only.

Product introduction
　　Disc continuous dryer is a highly efficient continuous drying equipment. Its unique structure and working principle determine that it has the characteristics of high thermal efficiency, low energy consumption, small footprint, simple configuration, convenient operation control, and good operating environment. It is widely used in chemical, pharmaceutical, pesticide, food, feed, agricultural Drying operations in industries such as by-product processing. Praised in the practice of various industries. At present, we manufacture three types of normal pressure, airtight and vacuum, four types of 1200, 1500, 2200 and 3000, A (carbon steel), B (stainless steel parts in contact with materials), C (on the basis of B, add steam pipes The road, main shaft and bracket are made of stainless steel, and the cylinder and the roof are lined with stainless steel). Three kinds of materials, with a drying area of 4 to 180m2, a total of hundreds of models of series products, and can provide a variety of auxiliary equipment to meet the needs of users to dry various materials.
Working principle The
　　wet material is continuously added from the feeder to the first layer of the drying tray on the upper part of the dryer. The rake arm with the raking blade makes a rotary motion to make the raking arm make a rotary motion so that the raking blade continuously copies the material. The material flows through the surface of the drying plate along an exponential spiral, and the material on the small drying plate is moved to the outer edge, and falls on the outer edge to the outer edge of the large drying plate below. On the large drying plate, the material moves inward and falls from the middle The material outlet falls into a small drying tray as follows. The drying trays of different sizes are arranged alternately up and down, so that the material can continuously flow through the entire dryer. A heating medium is introduced into the hollow drying tray. The heating medium is in the form of saturated steam, hot water and heat-conducting oil. The heating medium enters from one end of the drying tray and exits from the other end. The dried material falls from the last layer of drying tray to the bottom layer of the shell, and is finally transferred to the discharge port by the rake leaves. Moisture escapes from the material and is discharged from the moisture discharge port provided on the top cover. The moisture of the vacuum-type disk dryer is discharged from the vacuum pump port provided on the top cover. The dry materials discharged from the bottom layer can be directly packed. By adding fin heater, solvent recovery condenser, bag dust collector, dry material remixing mechanism, induced draft fan and other auxiliary machines, the drying production capacity can be improved. Dry paste and heat-sensitive materials can be easily recovered Solvent, and can carry out pyrolysis and reaction operations.

Performance characteristics
(1) Easy control and strong applicability
◎ By adjusting the thickness of the material layer, the speed of the main shaft, the number of rake arms, the type and size of the rake leaves, the drying process can be optimized.
◎ Each layer of drying tray can be passed through hot or cold medium to heat or cool the material. The temperature control of the material is accurate and easy.
◎ The residence time of materials can be adjusted accurately.
◎ The flow direction of the material is single, there is no back-mixing phenomenon, the drying is uniform, the quality is stable, and no mixing is needed.
(2) Convenient and easy operation
◎ The operation of starting and stopping the dryer is very simple.
◎ After stopping the feeding, the conveying material scale rake leaves can quickly empty the material in the dryer.
◎ Through the special large inspection door sight glass, the equipment can be cleaned and observed very carefully.
(3) Low energy consumption
◎ The material layer is very thin, the spindle speed is low, the power required by the material conveying system is small, and the power consumption is low.
◎ Drying with conductive heat, high thermal efficiency and low energy consumption.
(D) operating the environment, recyclable solvents, dust emissions compliance
◎ atmospheric type: Due to the low flow velocity within the apparatus, the apparatus and low moisture profile compete, dust is difficult to float to the top of the device, the top opening humidity Exhaust gas contains almost no dust.
◎ Closed type: Equipped with a solvent recovery device, which can conveniently recover the organic solvent in the wet gas. The solvent recovery device is simple and the recovery rate is high. For flammable, explosive, toxic and oxidizable materials, nitrogen can be used as a moisture-carrying gas for closed-circuit circulation to make it safe for operation. Especially suitable for drying flammable, explosive and toxic materials.
◎ Vacuum type: Disk dryer operating under vacuum, especially suitable for drying heat-sensitive materials.
(5) Convenient installation and small footprint
◎ The dryer is shipped from the factory and transported as a whole. It only needs to be hoisted in place, and the installation and positioning are very easy.
◎ Due to the layered layout and vertical installation of the drying tray, even if the drying area is large, the floor space is also very small.
Technical characteristics
(1) Drying tray
◎ Design pressure: generally 0.4MPa, up to 1.6MPa.
◎ Maximum working pressure: generally ≤0.4MPa, up to 1.6MPa.
◎ Heating medium: steam, hot water, thermal oil, hot water heating at 100 ℃, drying water saturated or superheated steam ≤0.4MPa at 100 ℃ ～ 150 ℃, thermal oil at 150 ℃ ～ 320 ℃ Heating:> 320 ℃, it can be heated by electricity, thermal oil, molten salt, etc.
(2) Material conveying system
◎ Spindle speed: 1 ～ 10 rpm, electromagnetic or frequency conversion stepless speed regulation.
◎ Harrow arm: There are 2-8 rake arms fixed on the main shaft on each layer of drying tray.
◎ Rake leaf: articulated on the rake arm, it can keep up and down with the surface of the disk to maintain contact, there are many forms.
◎ Rolling: For materials that are easy to agglomerate and need to be crushed, adding rolling at an appropriate position can strengthen the heat transfer and drying process.
(3) The shell has three types of normal pressure, airtight and vacuum
◎ Atmospheric pressure type: cylinder or octagonal prism type, with integral and split structure. The heating medium inlet and outlet main pipes can be inside or outside the casing.
◎ Closed type: Cylindrical shell can withstand the internal pressure of 5Kpa. The main pipeline of heating medium inlet and outlet can be inside or outside the shell.
◎ Vacuum type: Cylindrical shell, the design pressure is 0.1Mpa, the main pipeline of heating medium inlet and outlet is in the shell.
(4) Air heaters
are generally used when the evaporation capacity is large to enhance the drying efficiency.
Suitable for material
drying pyrolysis combustion cooling reaction sublimation
◎ organic chemical products ◎ inorganic chemical products ◎ medicine, food ◎ feed, fertilizer

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