I. Description of Spray dryer for poly aluminum chloride/aluminium hydroxide
LPG Centrifugal spray dryer is the widest used technology in the liquid shaping technology and in the drying industry. It is most suitable for producing powder, particle, or block solid products from materials of solution, emulsion, liquid and pumpable paste states. Therefore, when the particle size and distribution of the final products, their residual water contents, the stocking density and the particle shape meet the precision standards, the spray drying is one of the most desired technologies.
II. Features of Spray dryer for poly aluminum chloride/aluminium hydroxide
1. High speed of drying. After the spraying of he material liquid, the surface area of the material will be increased greatly. In the hot-air flow, 95%-98% of water can be evaporated at a moment. The time of completing the drying needs only several seconds.
2. It is especially suitable for drying the heat sensitive materials. Its final products own the good uniformity, mobility, dissolving capacity. And the final products are high in purity and good in quality.
3. The production procedure is simple and the operational control is easy. The liquid with the moisture contents 40-60% (for special materials, the contents may reach 90%) can be dried into power or particle products once a time. After the drying, there is no need for smashing of sorting, so as to reduce the operation procedures in the production and enhance the purity. The product particle diameters, looseness and water contents can be adjusted through changing the operation condition in a certain scope. It is very convenient to carry out the control and management.
III. Technical parameters of Spray dryer for poly aluminum chloride/aluminium hydroxide

Type		LPG
		5	25	50		100	150	200-3000
Inlet temperature		≤ 350°C
Outlet temperature		80-90°C
Evaporate capacity (Kg/h)		5	25	50		100	150	200-3000
Driving type		compressed air drive	mechanical drive
Rotate speed		25000	22000	21500	18000		18000	15000
Diameter of Atomizer tray (mm)		50	120	120	120		150	180-340
Heating source		electricity	electricity	electricity +steam+fuel oil+coal gas	electricity +steam		electricity +steam+fuel oil+coal gas	To be solved by users
Electric-heating power (KW)		9	45	60	81		99
Dried powder recovery rate (%)		≥ 95	≥ 95	≥ 95	≥ 95		≥ 95	≥ 95
Installation size	A(mm)	1000	1290	1730	2500		2800	According to practical needs
	B(mm)	2100	3410	4245	5300		6000
	C(mm)	2300	4260	4645	6000		6700
	φ D(mm)	1060	1800	2133	2560		2860
	E1(mm)	1050	1200	1640	2100		2180
	E2(mm)	1050	1200	1640	2100		2180
	F(mm)	750	1000	1250	1750		1970
	G(mm)	530	1700	1750	1930		2080
	H(mm)	530	1300	1800	2600		3050
	I(mm)	530	1550	1600	1780		1960