Tray dryer works

 

Wet material is continuously added to the self-feeder on the upper portion of the first layer dry dish dryer, rake leaves with a rake arm rotary movement to make rake leaves turn continuously copied material. Material flowing along the exponential spiral dry disc surface, the material in a small dry pan is transferred to the outer edge and the outer edge of a large dry fall below the outer edge of the disc, the disc material on the big dry and fall inward movement from the middle spout fall under the layer of small dry pan. Size drying plates are arranged alternately, the material to flow continuously through the entire dryer. Pass into the hollow of the heating medium dry pan, heat in the form of media is saturated steam, hot water and thermal oil heating medium into the disc by the end of the dry, derived from the other end. Fall to the bottom of the dried material from the last layer of the shell dry pan, rake leaves finally transferred to the discharge port. The moisture escape from the material discharged from the set on the roof of the mouth humidity, moisture vacuum-type tray dryer located on the roof of the mouth vacuum extraction. Discharged from the bottom of the dry material can be packed directly. By adding fins with heaters, condensers for solvent recovery, baghouse, dry material backmixed institutions, Fan and other auxiliary equipment, can increase the production capacity of its dry, dry cream paste and heat sensitive materials can be easily recycled solvents, and can be pyrolysis and reaction operations.

 

The main application areas tray dryer

 

Dry pyrolysis calcination reaction was cooled sublimation

 

(A) organic chemical products

 

Polyvinyl chloride resin, polytetrafluoroethylene resin, fumaric acid, anthraquinone, nitro anthraquinone, p-amino phenol, melamine, cyanuric acid, p-aminobenzoic acid, an antioxidant **8, Naphthol As, hard aliphatic acid salts, aniline, nitroaniline, dipentaerythritol, chlorinated paraffin, calcium formate, triethylene diamine, benzene sulfinate, isophthalic acid, dimethyl five sulfonate, thiourea, an oil-soluble aniline black dyes, acid black dyes and other organic chemical raw materials and intermediates.

 

(B) an inorganic chemical products

 

Precipitated calcium carbonate, calcium carbonate, nano-scale ultra-fine calcium carbonate, magnesium carbonate, aluminum hydroxide, white and gray, strontium carbonate, barium carbonate, potassium carbonate, lithopone, sodium hydrosulfite, barium sulfate, potassium sulfate, microspheres The catalyst, magnesium hydroxide, copper sulfate, nickel sulfate, nickel oxide, amine, sodium molybdate, sodium chloride, cryolite, iron oxide red, lithium hydroxide, nickel hydroxide, zirconium hydroxide, calcium phosphate, sulfur and the like.

 

(B) the pharmaceutical, food

 

Ampicillin toxins, Deng salt, L-phenylglycine and intermediates, cefotaxime, ceftriaxone, dipyrone, cimetidine, vitamin B*2, vitamin C, pharmaceutically acceptable salt, pharmaceutical aluminum hydroxide, medicinal bias magnesium silicate, caffeine, tea, flower extract, ginkgo biloba, chocolate powder, starch, corn germ and other raw materials and pharmaceutical intermediates.

 

(C) feed, fertilizer

 

Potassium carbonate, bio-fertilizer, protein feed, feed chlortetracycline, mycelia, wheat bran, distillers grains, grain, seeds, herbicides, cellulose, calcium hydrogen phosphate, etc. feed.

 

Features disc dryer use

 

(A) regulating easy applicability

 

1, to adjust the thickness of material, spindle speed, number of rake arm, rake leaves drying process type and size can achieve the best.

 

2, each drying plate can pass into a heat medium alone or cold medium, the material for heating or cooling, the material temperature control accurate and easy.

 

3, the residence time of the material can be precisely adjusted.

 

4, the flow of a single material, no backmixing, dry uniform, stable quality, without mixing.

 

(B) simple, easy

 

1, dryer driving, parking operation is very simple.

 

2, after the cessation of feeding, rake leaves can quickly transfer the material inside the dryer emptying material.

 

3, through a special viewing of large-sized doors and mirrors, the device can be carried out very carefully in the cleaning and observation.

 

(C) low energy consumption

 

1, the material layer is thin, the spindle speed is low, small material transport system requires power, less power consumption.

 

2, by conducting heat drying, high thermal efficiency, low energy consumption.

 

(D) operating environment, and recyclable solvents, dust emissions to meet the requirements

 

1, atmospheric type: Due to the low flow rate within the device, and distribution within the device to compete with low humidity, dust is difficult to float to the top of the device, so the top of the exhausts from the outlet of the exhaust gas contains almost no dust.

 

2, closed type: with solvent recovery, recovery of the carrier can be easily wet gas of the organic solvent. Solvent recovery simple, high recovery rate for flammable, explosive, poisonous materials in oxidation, available nitrogen as the carrier gas in closed loop wet, making it safe to operate. Especially suitable for flammable, explosive, toxic materials dry.

 

3, vacuum-type: disc dryer operated in a vacuum, especially suitable for drying heat-sensitive materials.

 

(E) To facilitate the installation, small footprint

 

1, drier overall factory, the overall transport, just hoisting, positioning is very easy to install.

 

2, due to the dry pan layered arrangement, vertical installation, even a large drying area, the area is also very small.

 

Technical characteristics tray dryer

 

(A) dry dish

 

1. Design pressure: generally 0.4MPa, up to 1.6MPa.

 

2, the maximum working pressure: general ≤0.4 MPa, up to 1.6 MPa.

 

3, the heating medium: steam, hot water, oil, dry plate temperature ≤**0 ℃ when heated with hot water, with ≤0.4 MPa saturated steam or superheated steam heating at **0 ℃ ~ **0 ℃, **0 ℃ ~ **0 ℃ when using oil heating,> can be electric, guide oil generation, molten salts, etc. when heating **0 ℃.

 

(B) material transport system

 

1, spindle speed: 1 to *0 rev / min, electromagnetic or frequency variable speed.

 

2, the rake arm: 2 to 8 fixed on the spindle on each rake arm dry pan.

 

3, rake leaves: splicing in the rake arm can float up and down to maintain contact with the disk, there are a variety of types.

 

4. Roller: caking and needs broken material, in place by placing roller can be enhanced heat transfer and drying process.

 

(C) Housing

 

There is pressure, sealed, vacuum three types

 

1, atmospheric type: original cartridge or octagonal column, there is a whole and split two structures. The heating medium may be in the import and export of the main channel housing may be external to the housing.

 

2, the closed type: cylindrical casing, to withstand the internal pressure 5Kpa, import and export of the main channel can be a heating medium in the housing may be external to the housing.

 

3, the vacuum type: cylindrical casing, the design pressure of the outer pressure 0.1MPa, import and export of the heating medium in the main duct housing.