Large Capacity Lime Rotary Kiln 2.0*40m 3 T /H Mining Machine

• Customization: Available
• After-sales Service: 3 Years
• Warranty: 3 Years
• Model NO.: HONGKE rotary kiln
• Certification: CE, ISO
• Customized: Customized
• Automatic Grade: Automatic
• Product Name: Cement Kiln System
• Diameter: 40m
• Gradient: 3
• Output: 2.5-4/H
• Speed: 0.23-2.26 R/Min
• Weight: 120t
• Production Line: We Design for You
• Name: Hongke Lime Kiln
• Factory Visit: Welcome
• Usage: Mining, Stone, Sand, Ore
• Worker Training: Offer
• After-Sales Service Provided: Engineers Available to Service Machinery Overseas
• Installation: Guide by Technician
• Spare Parts: Free Offer
• Operate Training: for Free
• Transport Package: in Bulk, Export Packing in Wooden Box, Suitable Fo
• Specification: Reference as the form
• Trademark: HONGKE
• Origin: Henan, China
• HS Code: 8417803000
• Production Capacity: 10 Sets/Month

Product Description

Large capacity lime rotary kiln 2.0*40m 3 t /h mining machine

Product Description

Introduction of Rotary Kiln Machine:

Rotary Kiln belongs to building material equipment, according to different materials, which can be divided into cement kiln, metallurgy chemical kiln and lime kiln. Cement kiln is used for making cement clinker and there are dry and wet methods to make cement clinker. Metallurgy chemical kiln is widely used for magnetic roasting of poor iron ore and oxidizing roasting of chrome and nickel in the steel factory; backing high-alumina mine in the refractory material factory; baking chamotte and alumina in the aluminum factory and baking chrome ore and chrome powder in the chemical plant. The Lime Kiln is used for roasting active lime in steel works and ferroalloy plants and light roasting dolomite.

The equipment can be divided into gas-burnt type calcination kiln and electric heating type calcination kiln according to the different heatsource used.

When the temperature of the calciner klin body is heated to the process requirements, the material to be calcined is sent into the calciner klin chamber by the feeding system.

The heating system adopts electrical heating radiation or burner heating. and maintains the working temperature of each area of the calciner klin by adjusting the electric heating power or adjusting the burner .

The calciner klin chamber has a certain tilt, so that the material is calcined while moving forward slowly during the slow rotation process .

The residence time of the material in the calciner klin chamber can maintain the working temperature of each area of the calciner klin by adjusting the electric heating power or the burner . 

In the cement industry, rotary kilns are an important equipment for calcining cement clinker. In the chemical industry, rotary kilns can be used to produce soda, calcine phosphate fertilizer, barium sulfide, etc. In the non-ferrous and ferrous metal metallurgical industry, metals such as iron, aluminum, copper, zinc, tin, nickel, tungsten, chromium, etc. are smelted using rotary kilns as smelting equipment to sinter and roast ores, concentrates, intermediates, etc.
 

 

 

 

 

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Working principle

Rotary Kiln Working Principle

The rotary kiln is central equipment for cement clinkering system in the new large dry processing cement production, which can be used with unit-or-twin-stream preheater, calcining combustor. 90%-95% of the raw material which has been pre-calcined feeds into the slow rotating, inclining installed rotary kiln from the rear. Under the composite effect of circumferential tilting and axial movement, the material slowly flows through the whole drum, the fuel (coal dust, oil or natural gas) sprays from kiln head into high temperature zone for burning, which produces the required heat for physical and chemical reaction of combination and crystallization of material inside the kiln. Under the function of rear blower, the burning gas stream and material counter flow the whole kiln, completing heat exchange and physical/chemical reaction. The clinkered cement is discharge to the cooler.

Product Application

 

Application
Applicable materials: cement, metal ore, limestone, cement clinker, bauxite, active lime, aluminum hydroxide, chrome ore, etc.
Scope of application: Rotary kiln is widely used in many production industries such as building materials, metallurgy, refractories, chemical industry, environmental protection, etc.

Rotary kilns produced by Henan Hongke Heavy Machinery have a simple structure, reliable performance, and are easy to control.

(1) Cement kiln is used to make cement clinker. Both dry and wet methods are applicable.
(2) Metallurgy chemical kiln is applicable in steel factories, refractory material factories, aluminum factories and chemical plants, etc. It is used for the magnetic roasting of iron ore and oxidizing roasting of chrome and nickel. It is also applied to bake high-alumina, chamotte, chrome ore and chrome powder, etc.
(3) Lime kiln can bake active line and dolomite, and thus are popular in steel factory and ferroalloy factory.

 

 

characteristics

Features
1. Advanced structure, good sealing, the kiln head is sealed by the shell, and the kiln tail adopts the axial contact seal which ensures the sealing is reliable.
2. Easy to install and maintain; large kiln equipped with the auxiliary drive to meet the needs of installation and maintenance.
3. The rotary kiln with large unit volume, long furnace life, stable operation, high heat transfer efficiency, and low heat consumption.
4. The rotary kilns offer a robust and reliable design that delivers the benefits of low resource consumption and high operational reliability.
Performance Characteristics of Rotary Kiln
* The kiln body has simple structure and smooth air flow.
* Evenly heated, stable product quality
* High output, suitable for large active lime production line
* The sulfur content of the product is low, which meets the requirements of steel-making.
 

working process

 

Working Process of Ceramic Sand Rotary Kiln

 

Working Process of Ceramic Sand Rotary Kiln

1.Crushing and Milling

The dry crude material will be crushed and milled first.

2.Calcination

After milling, the materials would enter the kiln outlet( high end of the cylinder) through the preheater, and then are fed into
the kiln by the tremble pipe. Meanwhile,The heating source is sprayed into kiln by burner barrel in the head of the kiln. Due to the inclination of the cylinder and slow rotation of the cylinder, the materials roll in hoop direction. During this process,They will be calcinated, reacted, decomposed in succession through the calcinating section, reaction section, decomposition section, Note:The exhaust gas are discharged by the exhaust blower and drained into the the atmosphere by chimmney after exchanging heat with the materials.

3.Cooling

Then the materials are discharged from the head of the kiln and enter the cooling device and be cooled.

4. Screening
Then they will go through the screens and final products will be conveyed to the yard. The big size materials will be sent back and processed..

 

 

structure

Structure of Rotary Kiln Machine

Structure of Rotary Kiln Machine

Kiln head section
The kiln head is the discharge part of the rotary kiln, with a diameter greater than the diameter of the rotary kiln. It is sealed by stainless steel fish scales and the kiln body, and is mainly composed of maintenance ports, coal nozzles, trolleys, observation holes, and other parts.
Kiln body part
It is the main body of a rotary kiln, usually 30-150 meters long, cylindrical, with 3-5 rolling rings in the middle. The cylinder
is mostly processed into 3-10 sections by the factory, and welded after being transported by large trucks to the destination. The rolling ring part, also commonly known as the tire ring, is cast from molten steel, and the kiln body of the rolling ring part is slightly thicker than other kiln body steel plates due to its load-bearing capacity. The supporting tugboat is also a part of the kiln body and is connected to the foundation corresponding to the rolling ring, which is the load-bearing pillar of the entire rotary kiln. Usually, a set of rollers consists of two rollers and two blocking wheels. During normal operation, refractory bricks should be laid inside the rotary kiln.
Kiln tail section
The tail part of the kiln is also an important component of the rotary kiln, with a shape similar to the lid of a rotary kiln at
the feeding end, mainly responsible for feeding and sealing.
Rotary kiln support frame
1. The support frame of the rotary kiln can make our rotary kiln equipment more sturdy, so that it will not shake during
operation and stable production;
2. The support frame of the rotary kiln is mainly used to fix our rotary kiln equipment, which can prevent its deformation
during use. Everyone knows that if the rotary kiln equipment is not operated properly, it will deform, so it has this
function;
3. The rotary kiln bracket can facilitate the lifting and transportation of our rotary kiln equipment.

Preheating tower
Also known as a preheater, it is a vertical structure in which the waste heat from the exhaust gas discharged by the rotary kiln is used to preliminarily heat the material before it enters the rotary kiln. The principle is to heat the raw materials by passing the residual heat discharged from the tail of the rotary kiln through a preheating tower filled with raw materials. Adding a preheating tower can effectively reduce energy consumption and improve the quality level of finished products.
Cooling machine The cooling machine and preheater, on the contrary, are devices that quickly cool down the materials in a rotary kiln after firing. They look like a small rotary kiln, with smaller and shorter diameters, and do not require the laying of refractory bricks. They are replaced by lifting plates inside. The main function is to quickly cool the finished product.
Conveyor belt The conveyor belt is a material conveying device for rotary kilns. During use, various forms of damage often occur, such as edge layering, ulceration, defects, and cracking; Long distance longitudinal tearing, deep scratches, holes, extensive wear, covered rubber bulges or peeling, internal defects in joints, etc. Among them, longitudinal tearing is the most urgent, edge damage is the most common, and internal defects in joints are difficult to avoid. The service life after repair is the most concerned.

 

FAQ

FAQ
1. What is the raw material do you want to grind?
2. What is the capacity per hour do you need?
3. What is the raw material input size?
4. What is the output size of your product?

1.Are you a manufacturer or a trading company?
A: We are a professional manufacturer of rotary kiln equipment and related machinery
(Rotary kiln, granulator, crusher, grinder, dryer, cooler, feeder, conveyor belt), etc.
2.What should I do if I encounter some trouble while using it?
A: We will provide English manuals and videos to show you how to solve the problem, and if necessary, we will dispatch our engineers to your factory.
3. Do you provide installation services after ordering the machine?

For single machines, we provide guidance and operation videos for users.
For the production line, we provide professional construction drawings and arrange engineers to guide users in installing
machines. Assist users in training skilled workers.
4.Can we visit your factory and see your equipment?
We really warmly welcome every customer to visit our factory, and we can take them to visit the machinery factory
1. We have comprehensive technical and business consulting services;
2. Propose the most suitable solution and equipment for our customers;
3. Free CAD design: If you can provide materials, target capabilities, and factory information, we can provide you with free CAD design.

After sales service:
1. Safe and fast payment methods;
2. Assist clients in equipment foundation construction;
3. Dispatch engineers to install and debug the equipment;
4. Provide training for frontline operators on site;
5. Regularly visit customers, solve production problems, and provide lifelong service


Our engineers will suggest you the most suitable one for you according to your information.
We will give you factory price with full specification, so pls leave us an inquiry to know more details about price, packaging
shipping and discount.
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Henan Hongke Heavy Machinery Co.,ltd
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Technical Data

 

Specifications (m)	Kiln dimension			Output(t/h)	Rotation speed(r/min)	Motorpower(kw)	Weight
	Diameter(m)	Length(m)	Slope(%)				(t)
Ø1.4*33	1.4	33	3	0.9-1.3	0.39-3.96	18.5	47.5
Ø1.5*36	1.5	36	4	1.2-1.9	0.26-2.63	22	52
Ø1.8*45	1.8	45	4	1.9-2.4	0.16-1.62	30	78.2
Ø1.9*39	1.9	39	4	1.65-3	0.29-2.93	30	77.59
Ø2.0*40	2	40	3	2.5-4	0.23-2.26	37	119.1
Ø2.2*45	2.2	45	3.5	3.4-5.4	0.21-2.44	45	128.3
Ø2.5*40	2.5	40	3.5	9.0-10.5	0.44-2.44	55	149.61
Ø2.5*50	2.5	50	3	6.25-7.4	0.62-1.86	55	187.37
Ø2.5*54	2.5	54	3.5	6.9-8.5	0.48-1.45	55	196.29
Ø2.7*42	2.7	42	3.5	10.0-11.0	0.10-1.52	55	198.5
Ø2.8*44	2.8	44	3.5	12.5-13.5	0.437-2.18	55	210.58
Ø3.0*45	3	45	3.5	12.8-14.5	0.5-2.47	75	210.94
Ø3.0*48	3	48	3.5	25.6-29.3	0.6-3.48	100	237
Ø3.0*60	3	60	3.5	12.3-14.1	0.3-2	100	310
Ø3.2*50	3.2	50	4	40.5-42	0.6-3	125	278
Ø4*60	4	60	3.5	80-105.7	0.396-3.96	315	523
Ø4.3*64	4.3	64	3.5	110-135	0.4-3.96	420	606.69
Ø4.8*72	4.8	72	3.5	170-210	0.39-3.96	630	853.3
Ø5.2*61	5.2	61	3.5	198-231	0.38-3.79	800	859
Ø5*80	5	80	4	205-250	maX3.5	800	1201
Ø5.6*87	5.6	87	4	283-333	maX4.23	900	1227.6