Cement Rotary Kiln

Pengfei rotary kiln (Rotary kiln, titanium dioxide kiln, sintering furnace, industrial kiln, kiln, oxidizing pellet) has specifications of 3.2*52m, 3.5*54m, 4.0*60m, 4.3*64m, 4.8*74m, 5.0*78m. Pengfei rotary kiln is the main equipment for calcining cement clinker. It has been widely used in cement, metallurgy, chemical industry, and other industries. The equipment consists of a cylinder body, supporting device, supporting device with gear wheel, transmission device, movable kiln head, sealing device at kiln end and combustion device. The rotary kiln has the characteristics of simple structure, reliable operation and easy control of the production process. Rotary kiln calcination system equipment produced by Pengfei has been innovated through technology. In this system, the most advanced domestic and foreign hydraulic wheel-blocking device, measuring plunger pump with high accuracy, high precision speed regulating valve and contact graphite block sealing device are adopted. In order to improve the degree of automation, the kiln head uses industrial TV to watch the fire, the technological process simulates the fluorescent screen, and the calcination belt uses an infrared scanner to directly reflect the calcination of the belt on the computer. These new technologies have a strong visual sense, convenient operation, and reliable use. The thermal system has been stabilized and the operation rate of the equipment has been improved. Compared with the equipment of the same specification, the operation rate has been increased by 10%, the output has been increased by 5%-10%, and heat consumption has been reduced by 15%.

4.0X60m Cement Rotary Kiln working site	4.2x60m Cement Rotary Kiln	4.3x64m Cement Rotary Kiln

In addition to calcining cement clinker, the rotary kiln is also used to calcine clay, limestone and slag drying. In refractory production, the rotary kiln is used to calcine raw materials to make its size stable, strength increase and reprocessing. In nonferrous and ferrous metallurgy, iron, aluminum, copper, zinc, tin, nickel, tungsten, chromium, and files are sintered and roasted in the rotary kiln. For example, aluminum hydroxide is roasted into alumina in aluminum production; pellets are produced for blast furnace iron-making with aluminum hydroxide in iron-making; iron ore is directly reduced by SL/RN method and Krupp method abroad; tin and lead are extracted by chlorination volatilization roasting method. In the process of mineral processing, the lean iron ore is magnetized by the rotary kiln, so that the original weak magnetism of the ore is changed to strong magnetism, so as to facilitate magnetic separation. In the chemical industry, soda is produced in a rotary kiln, phosphorus fertilizer and barium sulfide are calcined. It has the advantages of low energy consumption, less electricity consumption and utilization of medium and low-grade phosphate rock, and has been widely promoted.

In addition, in terms of environmental protection, cement kiln is used to incinerate hazardous wastes and garbage to achieve harmless waste discharge, and waste is used as fuel to save pulverized coal and achieve resource utilization of waste.

Cement Rotary Kiln Technical parameters:

Specification (m)				φ2.8/2.5×44	φ3×48	φ3.2×50	φ3.3×50	φ3.5×54	φ4×60	φ4.3×64	φ4.8×74	φ5.0×74	φ5.6×87	φ6.0×95
Production capacity (ton/day)				300	600-700	1000	1200	1500-1800	2500	3500	5000	6000	8000	10000
The inclination of kiln body（％）				3.5	3.5	3.5	4	4	4	4	4	4	4	4
Number of supports				3	3	3	3	3	3	3	3	3	3	3
Wheel type				Mechanics	Mechanics or Hydraulic pressure	Hydraulic pressure	Hydraulic pressure	Hydraulic pressure	Hydraulic pressure	Hydraulic pressure	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	0.4-4.0	0.35-4	0.35-4	Max4.23	Max5
		Auxiliary Drive (Rotation/minute)	4.75		9.36	6.5	5.61	7.66	8.2	7.93	8.52	7.58	8.7	9.2
main drive		model	ZSN4-225-21		Z2-101	ZSN4-280-191B	ZSN4-280-191B	ZSN4-315-092	ZSN4-355-092	ZSN4-355-12	ZSN4-450-092Lp44	ZSN4-450-092	ZSN4-450-12	ZSN4-500-092
	motor	Rated power (kW）	55		100	160	160	220	315	400	630	710	800	950×2
		Speed range (rotation/minute)	～1000		～1500	1500	1500	1000	1000	100-1000	1500	87.5～1000	100～1000	100～1000
		Rated voltage (volt)	440		220	440	440	440	440	440	660	600	600	600
	retarder	model	ZS145-1-1		ZS145-1-1	ZSY-450-40-V	ZSY450-40	NZS995-28VIBL	YNS1110-22.4VBR	YNS1400-3105VIBL	JH710C-SW305-40	JH280C-45	JH900C-SW305-25	JH900C-SW305-28
		Total speed ratio	49-63		50	40	40	28	22.4	31.5	42.226	28	23.901	26.646
Auxiliary drive	motor	model	Y122M-4		Y160M-6	Y160M-4B	Y160M-4	Y200L1-6	Y180L-4	Y200L-4	Y225M-4 lp44	Y250M-4	Y280M-4	Y315M1-4
		Rated power (kW)	4		7.5	15	11	18.5	22	30	55	55	90	132
		Rated Speed (Rotation/minute)	1440		970	1460	1460	970	1470	1470	1480	1480	1480	1490
		Rated voltage (volt）	380		380	380	380	380	380	380	380	380	380	380
	retarder	model	ZL35-16		ZL35-7-1	ZSY160-31.5-‖	ZSY355-31.5	ZSY355	YNS440-45‖R	YNS497-45ZC	JH220C-SW302-28	JH280C-45	ZSY400-35.5-︱	ZSY450-35.5-︱
		Total speed ratio	40.44		14	31.5	31.5	45	45	45	28	45	35.795	35.795
Total weight (excluding refractory bricks) (tons)				177	213	280.6	317	341	434	562	854	885	1201	1580