Overview:

    The hollow shaft is packed with wedge-shaped hollow blades, and the heat medium flows through the hollow shaft through the blade. Unit effective volume within the heat transfer area is very large, heat medium temperature from -40 ℃ to 320 ℃, can be water vapor, it can be liquid type: such as hot water, heat transfer oil. Indirect conduction heating, no air to take away the heat, heat are used to heat the material. Heat loss is only through the body insulation layer to the environment heat. Wedge-type paddle heat transfer surface with self-cleaning function. The relative movement of the material particles and the wedge surface produces a scrubbing effect, which can wash away the material attached to the wedge surface so that the clean heat transfer surface is maintained during operation. The blades of the paddle drier are of the W type, and two to four hollow agitators are generally arranged in the housing. The shell has a sealed end cap and an upper cover to prevent material leakage and the collection of material solvent vapor. The mouth of the mouth set up a block to ensure that the material level, so that the heat transfer surface is covered by materials and play a full role. The heat medium is driven by a rotary joint through a shell jacket and a hollow stirring shaft. The hollow stirring shaft has a different internal structure depending on the type of heat medium to ensure optimum heat transfer.

application:

    The blade dryer has been successfully used in food, chemical, petrochemical, dyes, industrial sludge and other fields. The equipment heats up, cools, and agitates the following unit operations: calcination (low temperature), cooling, drying (solvent recovery), heating (melting), reaction and sterilization. Stirring blade is also a heat transfer surface, so that the unit effective volume within the heat transfer area increases, shortening the processing time. Wedge-type blade heat transfer surface and has a self-cleaning function. The compression-swell function makes the material mix evenly. Material along the axial into the "piston flow" movement, in the axial section, the material temperature, humidity, mixing gradient is very small.

● With heat transfer oil to do heat medium, paddle dryer can be completed low temperature calcination work. Such as calcium sulfate dihydrate (Ca2SO4 · 2H2O) calcined into calcium sulfate hemihydrate (Ca2SO4.1 / 2H2O). Sodium bicarbonate (NaHCO3) is calcined to soda ash (Na2CO3) and so on.

● Access to cooling medium, such as water, cooling brine, etc. can be used to cool. Such as: used in the soda ash industry paddle-type cooler machine, replacing the old air-cooled cooler machine, saving energy and exhaust treatment equipment, reducing operating costs, can also be used for titanium dioxide, nickel-iron alloy powder and various powder Material cooling. The material can be cooled from 1000 ° C to less than 40 ° C in a single machine.

● Dry, the main function of the equipment, do not use hot air, so that solvent recovery, energy consumption, environmental control in the ideal state of easy handling. It is particularly suitable for solvent, flammable and easy to oxidize heat-sensitive materials. Has been widely used in fine chemical, petrochemical, dyestuff industry.

● In the axial section, the temperature, humidity, uniformity of the mixing, so that equipment can be used to heat or melt, or carry out some solid material reaction. In the compound fertilizer and modified starch industry have been successfully used. The paddle dryer can be used to sterilize food and flour. The unit effective volume of large heating area, and soon the material will be heated to sterilization temperature, to avoid prolonged heating and change the material quality.

Adapt to material

Petrochemical industry: polyolefin powder, polycarbonate resin, high and low density polyethylene, linear low density polyethylene, polyacetal particles, nylon 6, nylon 66, nylon 12, acetate fiber, polyphenylene sulfide, Based resin, engineering plastics, polyvinyl chloride, polyvinyl alcohol, polystyrene, polypropylene, polyester, polyoxymethylene, styrene ~ acrylonitrile copolymer, ethylene ~ propylene copolymerization.

Environmental protection industry: PTA sludge, electroplating sewage sludge, boiler soot, pharmaceutical waste, sugar residue, monosodium glutamate plant waste, coal ash.

Feed industry: soy sauce residue, bone feed, lees, food under the material, apple pomace, orange peel, soybean meal, chicken bone feed, fish meal, feed additives, biological slag

Food industry: starch, cocoa beans, corn kernels, salt, modified starch, drugs.

Chemical industry: soda ash, nitrogen, phosphorus and potassium compound fertilizer, kaolin, bentonite, white carbon black, carbon black, phosphogypsum, sodium fluoride, calcium nitrate, magnesium carbonate, sodium cyanide, aluminum hydroxide, barium sulfate, Calcium carbonate, dyes, molecular sieves, saponin.

Features:

● blade dryer low energy consumption: due to indirect heating, there is no large amount of air to take away the heat, the dryer wall and set the insulation layer, the slurry material, evaporation of 1kg water only 1.22kg water vapor.

● Blade dryer system low cost: the unit effective volume has a huge heat transfer surface, to shorten the processing time, equipment size smaller. It greatly reduces the construction area and building space.

● Wide range of materials used: the use of different heat medium, can handle heat-sensitive materials, but also deal with the need for high-temperature treatment of materials. Commonly used media are: water vapor, heat transfer oil, hot water, cooling water and so on. Can be continuous operation can also be intermittent operation, can be applied in many areas.

● environmental pollution: do not use to carry air, dust material entrainment rarely. Material solvent evaporation is very small, easy to handle. For the pollution of the material or the need to recover the solvent conditions, can be used closed circuit.

● low operating costs: the normal operation of the device, only 1-2 people / day. Low-speed mixing and reasonable structure. Wear a small amount of maintenance costs are very low.

● Stable operation: Due to the special compression-expansion stirring effect of wedge blades, the material particles are fully in contact with the heat transfer surface. In the axial section, the temperature, humidity and mixing degree of the material are very small, The stability of the.
 

Characteristic parameter table
Model	KJG-2.7	KJG-9	KJG-13	KJG-18	KJG-24	KJG-29	KJG-36	KJG-41
Heat transfer area m2	2.7	9	13	18	24	29	36	41
Effective volume m3	0.06	0.32	0.59	1.09	1.53	1.85	2.42	2.8
range of rotation r.p.m	15-30	10-25	10-25	10-20	10-20	10-20	10-20	10-20
Power kw	2.2	4.0	5.5	7.5	11	11	15	15
Body wide A mm	306	584	762	940	1118	1118	1296	1296
Total width B mm	736	841	1066	1320	1474	1474	1676	1676
Body length C mm	1956	2820	3048	3328	3454	4114	4115	4724
Total length D mm	2972	4876	5486	5918	6147	6808	6960	7570
Feeding distance E mm	1752	2540	2768	3048	3150	3810	3810	4420
Center high F mm	380	380	534	610	762	762	915	915
Total height G mm	762	838	1092	1270	1524	1524	1778	1778
Into the mouth N-inch	(2)3/4	(2)3/4	(2) 1	(2) 1	(2) 1	(2) 1	(2) 1	(2) 1
Outlet O-inch	(2)3/4	(2)3/4	(2) 1	(2) 1	(2) 1	(2) 1	(2) 1	(2) 1

Characteristic parameter table
Model	KJG-48	KJG-52	KJG-62	KJG-68	KJG-73	KJG-81	KJG-87	KJG-95	KJG-110
Heat transfer area m2	48	52	62	68	73	81	87	95	110
Effective volume m3	3.54	3.96	4.79	5.21	5.78	6.43	7.39	8.07	9.46
range of rotation r.p.m	10-20	10-20	10-20	10-20	5-15	5-15	5-15	5-15	5-10
Power kw	30	30	45	45	55	55	75	75	95
Body width A mm	1474	1474	1651	1652	1828	1828	2032	2032	2210
Total width B mm	1854	1854	2134	2134	2286	2286	2438	2438	2668
Body length C mm	4724	5258	5410	5842	5461	6020	5537	6124	6122
Total length D mm	7772	8306	8865	9296	9119	9678	9119	9704	9880
Feeding distance E mm	4420	4954	4953	5384	5004	5562	5080	5664	5664
Center high F mm	1066	1066	1220	1220	1220	1220	1220	1220	1220
Total height G mm	2032	2032	2362	2362	2464	2464	2566	2566	2668
Into the mouth N-inch	(2)11/2	(2)11/2	(2)11/2	(2)11/2	(2)11/2	(2)11/2	(2)2	(2)2	(2)2
Out of steam 0 inches	(2)11/2	(2)11/2	(2)11/2	(2)11/2	(2)11/2	(2)11/2	(2)2	(2)2	(2)2

Note: part of the parameters of the design according to different materials have been adjusted,

 

To note: part of the design parameters depending on the material to be adjusted to design.