600 Tpd Lime Rotary Kiln and Cement Rotary Kiln

• After-sales Service: on Line 24 Hours
• Warranty: One Year
• Customized: Customized
• Condition: New
• Power Source: Electric
• Automatic Grade: Automatic
• Model NO.: rotary kiln
• Type: Lime Rotary Kiln
• Certification: ISO, CE, CCS, LR, ABS
• Application Industry: Active Lime Production Line
• Output: 70~1000 T/D
• Kiln Body: Made of High Quality Composed of Carbon Steel or a
• Volum: 102-1005m³
• Transport Package: Standard
• Specification: Cement Rotary Kiln
• Trademark: ZTIC
• Origin: Luoyang, Henan
• HS Code: 8417100000
• Production Capacity: 500PCS/Year

Product Description

600 Tpd Lime Rotary Kiln and Cement Rotary Kiln

Product Description

600 tpd active lime production line equipment

Description:CITICIC supply complete equipments for active lime production line with capacity below 1200 ton per day. The active lime is widely used in steel production, Al2O3 production, Metal Mg production, calcium carbide and Power plant desulfurization paper production area. Active lime is an important auxiliary material in steel making industry. The using of active lime enhances the quality and capacity and lower down the loss and cost. It also stabilizes the operation. As proved in production, the using of active lime in steel making industry is very profitable. Recently years, the capacity of steel industry used lime increased by 40%. High quality lime with activity above 300ml increased from 27% to 29.5%.
Explain:
1.Steelmaking practice certified that, the active lime can improve the desulfurization and dephosphorization efficiency of 80%, and shorten the smelting time. It can be completely take reaction with acidic substances in the molten steel in 3-5 minutes.The lime reaction time of shaft kiln need 6-10 minutes at least.And it also improve furnace ridge above 40%. The furnace burden consumption is reduced to 5-8Kg/t steel,calculated in 10000000tons,savings annual about 15000000,production efficiency is significant.
2.Desulfurization and dephosphorization efficiency of active lime is obviously improved,the average S removal rate of steel is 34.5% ,especially for high S iron (S ≥0.06%), efficiency is more obvious, and the S removal agent consumption can be reduced by about 45%.
3.Steelmaking with active lime,iron material consumption can be reduced by 5-15Kg/t steel,than non-active lime.And it also can reduce the steel splash and adhesion on oxygen lance;sticky mouth;flue sticking phenomenon.
4.Lime consumption decreased: steelmaking with active lime, the consumption can reduce 20~25Kg/t steel,compared with non-active lime.And if use non-active lime,consumption is more than 65~70Kg,if use active lime, is 40~41.5Kg/t steel.
5.Steelmaking with active lime,slagging is fast,desulfurization, dephosphorization ability is significant, the production efficiency can be improved by 5%~10%. 6.Quality requirement of the active lime limestone:CaO≥52% SiO2≤2.0% MgO≤1.5%

Process and equipment: 
1.Raw material conveying system
Limestone, dolomite after crushing in the mine would be shipped to the factory.and by truck to the material pit,after screening,then conveying to raw material storage. Qualified lime stone particle size 10 ~ 50mm will be conveying to top silo of preheater by lifting equipment. Feed particle size is 10 ~ 50mm, discharging finished size of 5 ~ 40mm above 90%.
2.Active lime calcining system
Active lime calcining system consists of a vertical preheater, rotary kiln, cooler.
Vertical preheater:Vertical preheater is composed of a preheater body, a storage bin, a feeding pipe, hydraulic push rod device etc.. Preheater has polygonal and round using compartment partition device .Making the limestone gradually heating to avoid sharp warming burst into the kiln produces a large amount of powder, limestone decomposition rate is 30% ~ 40%, the average temperature of exhaust gas temperature is 230 ºC ~ 260, thereby reducing the heat consumption.
Rotary kiln:rotary kiln is composed of cylinder, supporting device, transmission device,block wheel device, kiln tail and kiln head seal,and kiln head cover.The kiln body is 3.5% inclined of level,equipped with two sets supporting device, the roller bearing is the water-cooled oil lubricated bearings, and can automatically aligning with Spherical tile. Near the gear ring is also equipped with hydraulic blocking wheel,using frequency conversion motor driving kiln body, and an auxiliary driving kiln. Kiln head and kiln tail adopts spring type sealing device,using frequency conversion motor driving kiln and with preheater decomposition rate, to control effectively calcination temperature and time, reached the burning and burnt requirements.
Coal burner using coal and gas firing four channel burner. Flexible and convenient adjustment, flexible operation, each air jet velocity can be adjusted during operation, can bring up any flame in different kiln conditions, easy control of calcination temperature.
Vertical Cooler: vertical cooler is composed of cooler body, fixed screen, cooling device, electric vibrating discharging machine etc.. Vertical cooler has many cooling discharge area, each area discharging speed can be controlled separately according to material temperature; cooling air meet hot lime directly,cooling effect is well,ash temperature is low, ash temperature higher than the ambient temperature 40 ºC; cooling air after cooling lime, temperature can be preheated to more than 600ºC, one part is used as second combustion air in rotary kiln, the other part is used to dry pulverized coal. Cooler is without moving parts, simple structure, good cooling effect, less equipment repair.
3.Pulverized coal preparation system
Pulverized coal preparation system is an important part of active lime rotary kiln system. There are generally two kinds of system, one is the wind swept coal mill tube mill pulverized coal preparation system with bag dust collector.The system has the advantages of convenient operation, clean environment etc.. Its production process is as follows: Block degree ≤ 25mm coal, from bucket elevator into the belt, then conveyed to coal bunker by belt, through disc feeder or electromagnetic vibration feeder that under coal bunker,the mill is a set of grinding, drying,when grinding, introducing hot air from rotary kiln system or flue gas from auxiliary combustion chamber to dry.Gas with coalcome out from coal grinding machine,in force of the exhaust pumping, enters the separator separation, coarse pulverized coal returned to the mill grinding again through automatic ash discharging valve,and the fine powder was driven into the bag dust collector in force of gas flow,to achieve powder and gas separated. Gas out from separator,the dust discharged after purification by an exhaust fan, a part of exhaust gas recycled in coal grinding mill,another part exhaust gas into the atmosphere through the chimney. Pulverized coal collected by the dust collector is discharged into the kiln coal storage bin.According to the need of coal warehouse, into the kiln front burner with a Roots blower, through the burner combustion air blower air supply for combustion, used for calcining limestone.
4.Finished product conveying system
Finished lime is conveyed to bucket elevator through chain bucket machine by cooler,then into top sieving grain silo by elevator, qualified part ≥5mm conveying to finished product bin by belt conveyer, powder ≤5mm conveying to powder bin.Electric discharge valve is provided in finished product warehouse and powder bin. The main function of the finished product warehouse is for buffering measurement,the finished products should be promptly sent to the Steel Carbide factory to use reducing powdering.
5.Flue gas treatment system
High temperature flue gas from rotary kiln combustion, after the heat exchange with the limestone in preheater, the temperature dropped to 260 ºC below,cooling through multi tube cooler and then into the high-temperature bag type dust collector.After dust collector,high temperature fan into the atmosphere through the chimney,the dust concentration is less than 30mg/Nm ³.
To meet requirements for the modernization process of active lime pre decomposition kiln production line, ensure the reliable operation of process equipment, stable process parameters, to ensure product quality, save energy, improve the production line running rate.The whole process adopt advanced technology controling, increase the DCS control on the basis of PLC control, centralized monitoring, operation and decentralized control of the main production line, control rotary kiln operating system to improve product quality and reduce consumption. To improve the reliability of electric control equipment and maintenance, to realize modernizatio of control, monitoring, operation.
6.Product quality
CaO ≥93, MgO ≤ 4.5, SiO2 ≤ 1, P ≤ 0.01, S ≤ 0.025 ignition loss ≤ 3, active degree ≥ 350ml ~ 380ml ≤ 1.5%, burning, burning ≤ 1.5%.
Process:
Qualified limestone deposited in the hopper, through hoist and transport into the top of silo.Preheater top bin, is made up of 2 level control the feeding amount, and then through the discharging tube of the limestone and uniformly distributed in the preheater each room.Limestone is heated from 1150°C to 900 ° C by kiln flue gas in preheater, about 30% decomposition, then into the rotary kiln by the hydraulic push rod,the limestone in the rotary kiln sintering is decomposed into CaO and CO2.After decomposition,limestone into cooler, the cold air is blown into the cooler cooling to 100 DEG C discharge. By 600 ° C hot air heat exchange into the kiln and gas mixing combustion.Gas mixed with cold air enter into dust collector by the fan,and through the exhaust fan into the chimney. Lime out of the cooler conveying into lime product warehouse by vibration feeding machine, chain bucket conveyor, bucket elevator, belt conveyor . According to the customer request whether screening processes...
Matching:
Vertical preheater
Vertical preheater is one of the main active lime equipment, the main effect of vertical preheater is the limestone material sent to the preheater, and use high temperature exhaust gas from the kiln calcining out emissions(1150 degrees Celsius), the material in the preheater evenly heated to about 900 degrees Celsius.In the preheating process of 30%CaCO3 is under preheater decomposition, and then by the hydraulic push rod into the rotary kiln calcination, calcination process that not only makes the limestone calcination time in the kiln is greatly shortened, obtain higher activities of lime.
Vertical preheater system mainly consists of six parts
(1)Feeding system: mainly including the upper house, the discharge pipe, the materials and structure that can guarantee the body feeding safety sealed in preheater, so that the outside of cold air cannot enter into preheater inside, and material feeding can use stick valve to achieve continuous or intermittent feeding.
(2)Preheater: it is the most important part of ensuring the material preheated to 900 degrees Celsius, which is composed of a preheating chamber, a suspension device and a refractory lining (this does not belong to the scope of equipment design and manufacturing) and other parts. This part of the structure is mostly metal component material selection, part of the heat-resistant steel according to the needs, working at 1000~1100 degrees Celsius high temperature heat-resistant steel. In addition, the refractory lining structure has the advantages of novel design, good sealing performance, can ensure material in preheater evenly preheated and achieve preheating temperature.
(3)The pushing device: mainly including pusher, frame and the connecting rod part, pusher heat-resistant steel casting or welding to become, can withstand high temperatures, with the help of electric and hydraulic system, the hydraulic push rod can be automatic control procedures followed by pushing. 
(4)Hydraulic system: mainly comprises an oil tank, pump, motor, electromagnetic valve, hydraulic tubing, his main role is to control the pushing device, complete the pushing action.
(5)Charging room: mainly including the chute feeding chamber, charging spout, body, its main function is to the material into the rotary kiln preheated calcined within.
(6)Framework: It includes columns, ring beams , the main role is to carry the upper structure of the preheater
Technical:

Active lime rotary kiln system process matching table

specification	Φ2.5×40	φ2.8x42	Φ3x46	Φ3.2x50	φ3.2x54	φ3.6x56	φ3.8x58	Φ4x60	Φ4.3x58	Φ4.3x64	Φ4.8x68
volume(m3)	142	190	235	292	390	430	505	575	670	738	1005
burning temperature0C	1350/ 1250	1350/ 1250	1350/ 1250	1350/ 1250	1350	1350	1350	1350	1350	1350	1350
capacity(t/d)	150	200	250	300	350	400	500	600	750	800	1000

Vertical preheater

Vertical preheater is one of the main active lime equipment, the main effect of vertical preheater is the limestone material sent to the preheater, and use high temperature exhaust gas from the kiln calcining out emissions(1150 degrees Celsius), the material in the preheater evenly heated to about 900 degrees Celsius.In the preheating process of 30%CaCO3 is under preheater decomposition, and then by the hydraulic push rod into the rotary kiln calcination, calcination process that not only makes the limestone calcination time in the kiln is greatly shortened, obtain higher activities of lime.
Vertical preheater system mainly consists of six parts.
1. Feeding system: mainly including the upper house, the discharge pipe, the materials and structure that can guarantee the body feeding safety sealed in preheater, so that the outside of cold air cannot enter into preheater inside, and material feeding can use stick valve to achieve continuous or intermittent feeding.
2. Preheater: it is the most important part of ensuring the material preheated to 900 degrees Celsius, which is composed of a preheating chamber, a suspension device and a refractory lining (this does not belong to the scope of equipment design and manufacturing) and other parts. This part of the structure is mostly metal component material selection, part of the heat-resistant steel according to the needs, working at 1000~1100 degrees Celsius high temperature heat-resistant steel. In addition, the refractory lining structure has the advantages of novel design, good sealing performance, can ensure material in preheater evenly preheated and achieve preheating temperature.
3. The pushing device: mainly including pusher, frame and the connecting rod part, pusher heat-resistant steel casting or welding to become, can withstand high temperatures, with the help of electric and hydraulic system, the hydraulic push rod can be automatic control procedures followed by pushing.
4. Hydraulic system: mainly comprises an oil tank, pump, motor, electromagnetic valve, hydraulic tubing, his main role is to control the pushing device, complete the pushing action.
5. Charging room: mainly including the chute feeding chamber, charging spout, body, its main function is to the material into the rotary kiln preheated calcined within.
6. Framework: It includes columns, ring beams , the main role is to carry the upper structure of the preheater

main equipment

NO.	Equipment name	Specification	Type		Qty
1	rotary kiln	ø4.0×60m			1
2	vertical preheater	ø10.5×8.5m			1
3	vertical cooler	105m3	4.2*9m		1
4	multi pipe cooling machine	dealing air:260000m3/h			1
5	High temperature exhaust fan	900kw,10KV			1
6	coal mill system	8-10t/h	PDM1250		1
7	gas&coal burning system		four way burner		1
8	dust collector equipment
8.1	kiln tail flue dust collector	dealing air :260000m3/h		LCMD-3660	1
8.2	coal grinding dust collector	dealing air:45000m3/h		FGM128-6(M)	1
8.3	cooling dust collector	dealing air:18600m3/h		PPc64-4	1
8.4	finished product screening dust collector	dealing air:18600m3/h		PPc64-4	1
9	accessory equipment
9.1	bucket elevator		NE100		1
9.2	Circular vibrating screen		YA1536		1
9.2	Circular vibrating screen		YA1236		1
9.4	chain scraper conveyor		DS500		1
9.5	belt conveyor				6
10	fan
10.1	axial flow fan				4
10.2	centrifugal fan				2
10.3	coal mill fan				1
10.4	roots fan				3

Technical

host performance		300t/d	600t/d	800t/d	1000t/d	1200t/d	1500t/d
preheater	Type	Low wear vertical warehouse compartment	Low wear vertical warehouse compartment	Low wear vertical warehouse compartment	Low wear vertical warehouse compartment	Low wear vertical warehouse compartment	Low wear vertical warehouse compartment
	Shape	Type 6 edges	Type 12 edges	Type 12 edges	Type 18 edges	Type 20 edges	Type 22 edges
	Preheating warehouse number	6	12	12	18	20	22
	hydraulic push rod number	6	12	12	18	20	22
	preheating amount(t)	1200	1200	1600	2000	2400	3000
Rotary kiln	Specification	ø3.2×50m	ø4×60m	ø4.8×56m	ø5.0×58m	ø5.2×64m	ø5.6×76m
	Slope	3.5%	3.5%	3.5%	3.5%	3.5%	3.5%
	Rotary speed(r/min)	0.3-1.8	0.3-1.8	0.3-1.8	0.3-1.8	0.3-1.8	0.3-1.8
	Burning temperature(ºC)	1350	1350	1350	1350	1350	1350
cooler	Type	Partition upright	Partition upright	Partition upright	Partition upright	Partition upright	Partition upright
	Temperature controlling zone number	3	3	4	4	4	4
	Air tower number	2+1	4+1	4+1	4+1	4+1	4+1
	Specification(m)	3.6×3.6	4.1×4.1	4.7×4.7	5.2×5.2	5.4×5.4	5.8×5.8
	Discharging temperature(ºC)	≤80	≤80	≤80	≤80	≤80	≤80
Product heat consumption(KJ/kg)		5400	5400	5000	4750	4600	4500
Adaptable fuel		coke oven gas, mixed gas, natural gas, pulverized coal, low-heat value gas

Active Lime Kiln: Lime Rotary Kiln 
1991 - Complete equipment supply - 600tpd Active lime production line
2005 - Complete equipment supply - 800tpd Active lime production line (largest in China)
2006 - In cooperation with Minerals - 1000tpd Active lime project

ZTIC Lime rotary kiln technical characteristics:
    1 Kiln body is made of high quality composed of carbon steel or alloy steel plate and automatic welding;
    2 Tyre,Support Roller,Open gear adopts alloy cast steel;
    3 Sliding bearing with large gap not scraping tile bearing;                 
    4Transmission device adopts hard tooth surface reducer, flexible diaphragm coupling, dc motor;
    5Adopts hydraulic gear wheel;
    6 Preheater scales were used respectively to veiw of kiln head, and cylinder pressure tight seal;     
    7 A slow drive device.
Description of Lime Rotary Kiln (Active Lime Calcining Equipment): 
Active lime can be widely used in a wide range of industries, such as steel, alumina, magnesium, calcium carbide, papermaking field, etc. As an important auxiliary material, active lime can not only help to improve the quality and output of steel, but also reduce the consumption and costs as well as ensure stable operation of steel industry. Considering the potential economic benefits of active lime for various fields, LYHMC Co., Ltd  has developed the 1000t/d lime rotary kiln for customers worldwide. And now this machine has been well received by clients from Vietnam, Russia,
Central Africa, and more.
 
Advantages of Lime Rotary Kiln (Active Lime Calcining Equipment): 
1. High productivity makes it possible for our lime rotary kiln to be used in large active lime production line.
2. Open-type calcining rotary kiln has a simple structure, and can discharge sulfurous gases timely, which makes it quite suitable for steelmaking.
3. It is capable of calcining 10 to 50mm fine limestone directly.
4. Vertical preheater has been equipped at the end of the kiln to make full use of high-temperature gases generated during calcining. It can preheat limestone to the decomposition conditions. In this way, it helps not only to increase the output, but also to decrease the heat consumption.
5. The equipped vertical cooler at the head of the kiln can help cool the high-temperature limestone, as well as make it convenient to convey and store. Besides, it can effectively increase the temperature inside the kiln, thus reducing the fuel consumption.
6. Waste gases, discharged from the vertical preheater, have a temperature ranging from 280°C to 350°C, and their dust content is about 20g/Nm3. So it is easy to deal with these gases according to the requirements of environmental protection.
7. With stable performance, our active lime calcining equipment is also suitable for mine exploitation
 

Company Profile

 

Specification of Lime Rotary Kiln

NO	Specification(m)	Drawing no.	The basic parameters			The main reducer		Main motor			Weight  (t)
			speed      r/min	slope %	capacity   t/d	model	Speed ratio i	model	power KW	speed r/min
1	Φ2.5×78	J919	0.49~1.47	3.5	70~96	PT800(3)	61.88		100		327.5
2	Φ3.2/3.4×60	J935	0.67~2.0	3	400	PT800(3)	55.09		100		340.31
3	Φ3.5×115	928	0.46~1.38	3.5	450	PT800(3)	61.88		75×2		776.81
4	Φ3.6/3.8×70	J939	0.4~2.0	3	600~660	BST-1790	46.146		160		480.4
5	Φ4.2×50	J940A	0.33~1.8	3	600~660	PT900(3)	56.43		160		521.3
6	Φ4.2×50	J944	0.2~1.8	3	600~660	PT900(3)	56.43		160		579
7	Φ3×46	J922A	0.45~1.8	3	200~220	ZSY450-63	63	SZN4-225-21	55	1000	201.8
8	Φ3.5×54	J969A	0.6~1.8	3.5	300~350	ZSY560-56	56	YP355S-8	132	750	340.7
9	Φ4.3×64		0.194~1.94	3.5	800	ZSY630-71	71	YZP355L-6	250	980	557.5
10	Φ4.9×69.5		0.179~1.79	3.5	1000	ZSY710-63	63	ZSN4-355-092	315	1000	750

 

FAQ

Q: Why we believe in luoyang zhongtai industries co., ltd:
A: 1. More than 30 years experience.
     2.We are the leading professional supplier of mining machinery, construction machinery, machines casting and forged parts.
     3. All products achieved ISO9901:2000 quality management certificate and CE, ROHS certificates.
 
Q:Delivery time:
A: Parts lead time 1-2months, machines 2-3months.
 
Q:Payment terms:
A: Accept payment type: T/T, L/C, Western union,Cash.
30% deposit when signed contract. Full payment paid before shipping.
 
Q: Quality warranty?
A: Guarantee time: one year for main machinery. If something wrong we will provide the technical advice and find solution immediately. For those wearing parts we guarantee high quality parts for long-term supply.
 
Q: After sales service?
A: we can supply technical guide for machines running test and parts maintenance if end user needs.
 

After Sales Service

ZTIC Heavy Industries is your business partner in the After Market.
ZTIC  able to provide:
1.    ENGINEERED SPARES -  DESIGN AND MANUFACTURING
2.    LARGE VOLUME STEEL AND IRON CASTING FOUNDARIES
3.    HUGE MACHINE SHOP CAPABILITIES
4.    TRAINING PROGRAMMES
5.    PREVENTATIVE MAINTENANCE PROGRAMS
6.    PREVETATIVE MAINTENANCE SERVICES
7.    COMPREHENSIVE MAINTENANCE PROGRAMS

 
ZTIC's Field Service Engineers are trained specifically in the CITIC brand group products but are capable of undertaking the servicing of other OEM brands.
Our technicians are equipped with the most advanced technological diagnostic equipment available to trouble shoot your equipment to optimise performance and minimise down time.
ZTIC also has an extensive capability in supplying all you consumable and electrical/ mechanical spare part needs.