The rake vacuum dryer produced by our company is designed and improved based on the technology of domestic rake vacuum dryers for various slurry, paste, granular, powdery, fibrous and other materials. The transmission part adopts a stable and durable cylindrical gear reducer, the active shaft adopts a thickened stainless steel solid shaft, and the rake teeth adopt high-strength cast stainless steel rake teeth, fully ensuring the stable operation of the rake vacuum dryer in various harsh working environments. Two or four tapping rods can be added inside the shell to facilitate rapid drying and crushing of materials. The heating medium can be steam, thermal oil, or hot water.

Application scope

Especially suitable for drying heat sensitive materials, materials that are prone to oxidation at high temperatures, materials that are prone to hardening during drying, and materials that require recovery of steam emitted during drying. After drying, the material is in powder form, so it is more suitable for finished products in powder form. After drying, it can be directly packaged without crushing. The feed moisture content of the rake type vacuum dryer can reach 90%, and the dried material can be in the form of slurry, paste, granular, powdery or fibrous. After drying, the moisture content of the material can reach 1% or even 0.5%.

characteristic:

• Strong applicability and fast drying speed. Due to the use of jacket heating and high vacuum exhaust, the rake dryer is suitable for almost all materials of different properties and states, especially for explosive and easily oxidized materials.
• The product quality is high, and the rake teeth continuously rotate forward and backward during the drying process, causing the dried material to shake evenly
• Low steam consumption.
• Easy to operate, recyclable volatile gases, reducing environmental pollution.
Main technical parameters


model	Effective volume （L）	working volume （L）	heating area （m2）	Rake tooth speed （rpm）	Transmission Power （kW）	Vacuum pump model (Recommended)
ZGP-100	100	50	1	10	1.5	SK－1.5
ZGP-200	200	100	1.6	10	1.5	SK－1.5
ZGP-500	500	250	3.14	10	3	SK－3
ZGP-1000	1000	500	5.02	10	7.5	SK－6
ZGP-2000	2000	1000	8.01	7	11	SK－6
ZGP-3000	3000	1500	10.02	7	15	SK－6
ZGP-4000	4000	2000	11.87	7	15	SK－12
ZGP-6000	6000	3000	15.57	5	22	SK－12

Working principle

A rake vacuum dryer is a device that uses the characteristic of the boiling point of moisture in materials decreasing under vacuum to dry them. The device is indirectly heated with a steam jacket, and the water evaporates upon heating and is promptly removed. Inside the dryer shell, the rake teeth are driven by a transmission shaft, and the rake teeth end is designed to have a certain angle with the axis. The main shaft moves the material axially through forward and reverse rotation to facilitate drying and discharging.

Main installation dimension diagram

specifications	A	B	C	D	E	F	G	H	K	L1	L	n	d
ZGP-100	200	900	-	-	-	310	360	1250	400	800	1300	4	18
ZGP-200	200	1150	-	-	-	400	450	1400	500	1020	1550	4	18
ZGP-500	300	1700	630	-	-	530	580	1750	650	1540	2930	6	18
ZGP-1000	200	2300	650	-	-	655	710	1950	800	2000	3550	6	22
ZGP-2000	200	450	2000	1350	-	830	890	2200	1000	2550	4200	8	22
ZGP-3000	200	1050	1480	1940	735	1010	1080	2700	1200	2660	5610	10	22
ZGP-4000	200	1050	1620	1940	735	1120	1200	2900	1350	2800	5750	10	22
ZGP-6000	200	1050	2020	1940	735	1300	1380	3150	1550	3200	6200	10	22