Special Drying Equipment

Spin Flash Dryer

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Detailed

1.XSG Spin Flash Dryer Introduction

XSG system spin flash dryer is the company digested and absorbed, bold use of advanced foreign technology, combined with the actual situation of domestic drying, self-development and design of utility model patents.

2.Features

1, Dual duct tangential inlet, to avoid the rotating field in the radial velocity of the flow field inhomogeneity.

2, Effectively control the final moisture and fineness, controlled by a unified and coordinated swirl sheet inlet velocity.

3, The rotary blade arrangement unique structure, with little wear and tear, wide contact surface, cutting power and other characteristics.

4, Good at handling heat-sensitive materials, the bottom of the host belongs to the high temperature zone in the region of high gas velocity and high cooling water protection device to prevent the material coking discoloration possible.

5, The system resistance, high thermal efficiency, good operating environment, low labor intensity.

6, The host structure with a new seal, the host bearing life cycle extension and circulating cooling water spacer device with a bearing housing.

Spin flash dryer Process

After the air heater is heated to ~ 230 ℃, entering spin flash dryer . Wet material from the delivery device into a screw feeder mechanism, variable speed screw feeder. After the extruded material is forced into the main tower, but then was crushed high-speed rotating blades have different angles, and at high speed into the spin flash dryer high-temperature air Pylons impact high-speed rotation, entrainment rise , then the rapid decline in the temperature of the airflow, the material rapid evaporation of water to complete the drying process. The material was dried with hot air into the high-speed pulse bag filter. Air from the outside into the bag, discharge up to prevent bag product material by pulsed electromagnetic valve timing input turns the upper portion of the bag by the high pressure air (0.5 ~ 0.6Mpa), repeated recoil bag for optimum dust effect.

3.Flash dryer Technical data

Model	XSG-2	XSG-4	XSG-6	XSG-8	XSG-10	XSG-12	XSG-14	XSG-16
Host Nei Jing（mm)	200	400	600	800	1000	1200	1400	1600
Wind(m3/h)	350-500	1150-2000	2450-4500	4450-7500	7000-12500	10000-1800	13500-23500	18000-32000
Evaporation of water(kg/h)	12-17	40-70	80-150	150-250	230-420	300-600	450-750	600-1000
Installed power(kw)	6-10	12-14	20-25	27-32	40-47	50-65	60-72	70-90
Maximum height(m)	3.5	4.2	5.2	5.6	6.2	7.0	7.4	8.0
Covers(㎡)	10	18	25	32	38	45	55	75

Typical examples of drying table

Material name	Material moisture(%)	Product moisture(%)	To air temperature (℃)	Exhaust temperature (℃)
Barium carbonate	20～25	0.15	400	150
Strontium carbonate	30	0.15	350	100
Reactive Brilliant Red S-3B	40	4.5	150	100
H acid	45	4	270	125
Mordant BlackT	65	4.5	150	100
Ultrafine	30	0.3	240	80
Monosultap	15	1	130	85
Furfural residue	55	6	190	95
Lithium manganese battery electrode powder	60	6	110	70
Chrysophenine	35	5	156	76
D S D acid	55	1	230	90
Silica	82	6	240	100
Magnetic material	75	2	180	90
Iron oxide yellow	72	2	175	75
M B S Additives	48.2	0.5	145	100
Phthalocyanine blue	50	1	250	75
Zineb	30	0.7	120	90
Red iron oxide	40	0.4	240	120
Lignin	65	4	170	110
Tungsten powder	45	0.6	265	110
Ferrous sulfate	50	1	245	120
dolomite	66	0.4	310	145
Alumina	71	12.5	250	90
Aluminum silicide	80	5.5	450	100
Pure calcium carbonate	23	0	520	170
Ferrite	38	9	500	125
Food Yellow	72	1	225	95
Calcium stearate	57	0.32	100	52
Multi-vanadate	65	2.7	490	160
Barium sulfate	22	0.1	600	135
Titanium dioxide	35	0.5	700	125

4.Working Principle

Hot air from the bottom of the main air inlet to cut into the flash dryer Pylons, in flash dryer main tower form a spiral of rising air current speed rotation, while according to materials with different properties to adjust the size of the bottom of the annulus, so that wind speed in the best suitable condition. Material through the screw feeder directly into the flash drying column in the high-speed airflow impact and lead, and with the rapid dispersion of airflow high speed rotary motion. For larger groups and moist particles, high-speed air flow is not sufficient to make it broken and high-speed rotation, then gradually fall under gravity, fall to the bottom when the host is provided at the bottom of the crushing device forcibly broken up and atomized, and then with the high-speed airflow rises together with the rotary complete the drying process. In order to achieve a very low final moisture material moisture while volatility from the beginning to affect the quality of products, set up a multi-layer sheet cyclone in the drying tower to form a more stable fluidized bed, but also play a cyclone sheet guarantee dried residence time and the role of classification necessary.

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5.Applications

Inorganic materials: borax, calcium carbonate, calcium hydroxide, copper sulfate, iron oxide, barium carbonate, antimony trioxide, metal hydroxides, various inorganic salts, and other synthetic cryolite.