Dry Rotary Kiln

Dry Rotary Kiln overview
The cylinder body of the rotary kiln is rolled up by a steel plate. The cylinder body is lined with refractory lining and has a specified gradient with the level. It is supported by three-wheel belts on each supporting device. A large ring of teeth is fixed on the inner cylinder body of the span near the wheel belt at the feeding end with a tangential spring plate, and a pinion meshes with it. In normal operation, the main drive motor transmits power to the open gear device through the main reducer to drive the rotary kiln.

Dry Rotary Kiln Structure
The cylinder body of the rotary kiln is rolled up by the steel plate. The cylinder body is lined with refractory lining and has a specified gradient with the level. It is supported by three-wheel belts on each supporting device. A large ring of teeth is fixed on the inner cylinder body of the span near the wheel belt at the feeding end with a tangential spring plate, and a pinion meshes with it. In normal operation, the main drive motor transmits power to the open gear device through the main reducer to drive the rotary kiln.

Pengfei Rotary Kiln

4.3X64m Rotary Klin Delivery	Rotary Klin Project

Dry Rotary Kiln Working Principle
Dry Rotary Kiln Form
1. Cylinder and Kiln Lining
The material is from the end of the kiln (high end of the cylinder) into the kiln calcination. Due to the inclination and slow rotation of the cylinder, the material rolls in the circumferential direction and moves along the axis (from the high end to the low end). The process of decomposition and firing is continued. After physical and chemical changes, the clinker is generated and cooled by the grate cooler through the kiln hood. Fuel is injected into the kiln from the kiln head. After heat exchange between the waste gas and the material produced by combustion, the fuel is exported from the kiln tail.
2. wheel belt
3. Supporting devices
4. Transmission
5. Kiln Head Cover
6. Burner
7. Smoke chamber
8. Heat Ex-changer
9. Feeding equipment

Dry Rotary Kiln Routine Inspection
1. Inspection of transmission
2. Inspection of Wheel Belt and Supporting Device
3. Inspection of Kiln Cylinder
4. Inspection of Sealing Devices

Dry Rotary Kiln Technical Parameter

Specification (m)			Φ2.8/2.5 * 44	Φ3 * 48	Φ3.2 * 50	Φ3.3 * 50	Φ3.5 * 54	Φ4 * 60
Production capacity (ton/day)			300	600-700	1000	1200	1500-1800	2500
Inclination of kiln body（%）			3.5	3.5	3.5	4	4	4
Support number			3	3	3	3	3	3
Wheel type			Mechanics	Mechanics or Hydraulicpressure	Hydraulic pressure	Hydraulic pressure	Hydraulic pressure	Hydraulic pressure
Kiln speed		Main Drive (Rotation/minute)	0.445-2.22	0.676-3.38	0.36-3.57	0.36-3.57	0.39-3.9	0.41-4.07
		Auxiliary Drive (Rotation/Hour)	4.75	9.36	6.5	5.61	7.66	8.2
main drive	Motor	model	ZSN4-225-21	Z2-101	ZSN4-280-091B	ZSN4-280-091B	ZSN4-315-092	ZSN4-355-092
		Rated power (kW)	55	100	160	160	220	315
		Speed range (rotation/minute)	~1000	~1500	1500	1500	1000	1000
		Rated voltage (volt)	440	220	440	440	440	440
	Retarder	model	ZS145-1-1	ZS145-1-1	ZSY-450-40-V	ZSY450-40	NZS995-28VIBL	YNS1110-22.4VBR
		Total speed ratio	49-63	50	40	40	28	22.4
Auxiliary drive	Motor	model	Y122M-4	Y160M-6	Y160M-4B	Y160M-4	Y200L1-6	Y180L-4
		Rated power (kW)	4	7.5	15	11	18.5	22
		Speed range (rotation/minute)	1440	970	1460	1460	970	1470
		Rated voltage (volt)	380	380	380	380	380	380
	Retarder	model	ZL35-16	ZL35-7-I	ZSY160-31.5-II	ZSY355-31.5	ZSY355	YNS440-45 II R
		Total speed ratio	40.44	14	31.5	31.5	45	45
Total weight (excluding refractory bricks) (tons)			177	207	256.5	281	341	434
Kiln head cover weight (ton)			20	22	25	27	28	35
Specification (m)			Φ4.3 * 64	Φ4.8 * 74	Φ5.0 * 74	Φ5.6 * 87	Φ6.0 * 95
Production capacity (ton/day)			3500	5000	6000	8000	10000
Inclination of kiln body（%）			4	4	4	4	4
Number of supports			3	3	3	3	3
Wheel type			Hydraulic pressure	Hydraulic pressure	Hydraulic pressure	Hydraulic pressure	Hydraulic pressure
Kiln speed		Main Drive (Rotation/minute)	0.4-4.0	0.35-4	0.35-4	Max 4.23	Max 5
		Auxiliary Drive (Rotation/Hour)	7.93	8.52	7.58	8.7	9.2
main drive	motor	model	ZSN4-355-12	ZSN4-400-092	ZSN4-450-092	ZSN4-450-12	ZNS4-500-092
		Rated power (kW)	400	630	710	800	950 * 2
		Speed range (rotation/minute)	100~1000	1500	87.5~1000	100~1000	100~1000
		Rated voltage (volt)	440	660	660	660	660
	retarder	model	YNS1400-31.5VIBL	JH710C-SW305-40	JH800C-28	JH900C-SW305-25	JS900C-SW305-28
		Total speed ratio	31.5	42.226	26.812	23.901	26.646
Auxiliary drive	motor	model	Y200L-4	Y250M-4	Y250M-4	Y280M-4	Y315M1-4
		Rated power (kW)	30	55	55	90	132
		Speed range (rotation/minute)	1470	1480	1480	1480	1490
		Rated voltage (volt)	380	380	380	380	380
	retarder	model	YNS497-45ZC	JH220C-SW302-28	JS280C-45	ZSY400-35.5-I	ZSY450-35.5-I
		Total speed ratio	45	28	45	35.795	35.795
Total weight (excluding refractory bricks) (tons)			550.5	854	894	1201	1580
Kiln head cover weight (ton)			36	45	48