lime rotary kiln by zk mining machinery co., ltd.. supplier from china. product id 754728
According to the calcination character of limestone, lime rotary kiln is specialized design for production of active lime. This type of kiln can work with vertical preheater and vertical cooler to achievethe advantages like high use ratio of raw materials, complete calcination, even quality, good quality lime, high capacity output, environmental and energy saving, simple operation and longer working life. This kiln is very suitable for limestone calcination for industries like metallurgy, chemical, construction materials and etc.
Our products advantages:
1.According to the character of limestone and its calcination requirement, the structure of kiln inlet and outlet sections has been optimized. It can resolve the problem of material returning back to kiln inlet and the leakage of dust.
2.Evenly heating for limestone, low rate of less calcination and over calcination. Especially suitable for the high activity lime for steel making??
Technical configuration is optional: matched vertical preheater can use the high temperature from rotary kiln to preheating the limestone from room temperature to decomposition condition; matched vertical cooler can cooling down the high temperature of lime in the shortest time, and process can increase the activity of lime and also easy for transportation and storage.
Lime kiln is mainly compose of driving device, supporting roller, catching roller, cylinder, kiln inlet, kiln outlet and sealing device.
1. 2-3 supporting points can guarantee the contacting surface between supporting roller and tyre is paralleled with axis line of cylinder during installation.
2. Certain gap is reserved between tyre and cylinder. After thermal expand of cylinder, the tyre can tightly stick on cylinder for strength it.
3. Gear is split type combination structure which is assembled with cylinder by spring boards. The features are easy for installation, steady transmission.
4. Supporting device is antifriction bearing (occasionally uses slide bearing). This design has simplified the supporting device of supporting roller, and reduced the useless power loss during operation. It has the features like easy operation and maintenance.
Rotary lime kiln is the main equipment of lime production line. It is widely used for many industries like metallurgy, chemical industry, building refractory materials, environmental protection, etc. The rotary kiln consists of cylindrical shell, supporting roller, supporting device of thrust roller, driving unit, moveable kiln head, sealing device on the tail of kiln, coal dust pipe device, etc., the kiln body has a certain tilt angle with level. The whole kiln body is supported by the roller supporting device, and it is also equipped with thrust roller device to control the up and down movement of the kiln body.
Rotary kiln refers to rotary calcining kiln (commonly known as rotary kiln), which belongs to building materials equipment category. Rotary kilns can be divided into cement kilns, metallurgical chemical kilns and lime kilns according to different materials. Cement kilns are mainly used for calcination of cement clinker, divided into two categories: dry production cement kilns and wet production cement kilns. Metallurgical chemical kilns are mainly used for the magnetic roasting of lean iron ore in the metallurgical industry; oxidation roasting of chromium and nickel iron ore; roasting high alumina bauxite ore in refractory plants and roasting clinker and aluminum hydroxide in aluminum plants; roasting chrome ore in chemical plants And minerals such as chrome ore powder. Lime kiln (i.e. active lime kiln) is used to roast active lime and light-burned dolomite used in steel plants and ferroalloy plants. Rotary kilns are divided into variable diameter rotary kilns and through-diameter rotary kilns according to their appearance. According to their uses, they can be divided into cement rotary kilns, ceramsite sand rotary kilns, kaolin rotary kilns, lime rotary kilns, etc., according to different energy supply effects. It is a gas-fired rotary kiln, a coal-fired rotary kiln, and a mixed-fuel rotary kiln.
Supplier: Mining machinery: crushers, grinding raymond mill, ball mill and classifier, vertical mill, hydrated lime line, rotary kiln, rotary dryer,wet mill and accessories.Buyer: Iron ore, lead ore, nickel ore, pyrophyllite stone, gemstone
FOB Price:US $1,301 - 79,000
Qingdao,Tianjin,Shanghai or other port requested
Minimum Order Quantity:1 Set/Sets Negotiable
Supply Ability:100 Set/Sets per Month As your request
Payment Terms:L/C,D/A,D/P,T/T,Western Union
Place of Origin:Henan China (Mainland)
Brand Name:Hongxing rotary kiln
Model Number:Refer to specification
Packaging & Delivery
Standard export containers,bare main machine, motors and small parts are packed in wooden cases.
Within 20-25 working days after receiving the down payment.
1000TPD Cement Rotary Kiln:
4.Excellent thermal stability
Cement kiln is used for making of cement clinker and there are dry and wet methods to make cement. metallurgy chemical kiln is used for magnetic roasting of iron ore and oxidizing roasting of chrome and nickel in the steel factory; baking high-alumina mine in the refractory material factory; baking chamotte and alumina in the aluminium factory and baking chrome ore and chrome powder in the chemical plant.
Rotary kiln, namely clinker rotary kiln, belongs to building material equipment, which can be divided into Cement rotary kiln, metallurgy chemical kiln and Limestone rotary kiln according to different materials.
1. Cement rotary kiln is used for making of cement clinker and there are dry and wet methods to make cement.
2. Metallurgy chemical kiln is used for magnetic roasting of iron ore and oxidizing roasting of chrome and nickel in the steel factory; baking high-alumina mine in the refractory material factory; baking chamotte and alumina in the aluminium factory and baking chrome ore and chrome powder in the chemical plant.
3. Limestone rotary kiln is used for baking active lime and dolomite in the steel factory and ferroalloy factory.
Standard export containers,bare main machine, motors and small parts are packed in wooden cases.
As a national large-size plant, Jiangsu Triple A Credit Company, and Jiangsu Provincial Company Honoring the Contract and Keeping the Promise, Jiangsu Pengfei Group is the production and export base for the cement mechanical equipments of 2500TPD, 3000TPD, 5000TDP and 6000TDP new type dry process rotary kiln approved by National Foreign Trade and Economy Ministry. It has passed ISO9001 Quality Confirmation System and great comprehensive ability to provide best quality services on turn-key basis with technology design, civil construction, complete equipment, erection and trial test, commissioning for cement Pengfei brand products such as rotary kiln( 3.2*52m~ 5.2*78m), ball mill( 3*11m~ 4.6*13m), air swept coal mill[ 2.6*(5.25+2.25)m~ 3.8*10+3.5)m, preheater with precalciner, kiln rear precipitator, cooler etc. Are judged the famous product of excellent quality and designated product in the building materials industry.
Rotary kiln is a kind of thermal equipment calcines lump, bulk and slurry materials. It is widely used in cement & construction, non-ferrous metals, lime, ferrous metals, refractory materials, industrial chemicals, paper making industries etc.
Our products advantages as follows:
1.New type technology is adopted by main driving system. Compared with traditional magnetic and dc speed regulation, its main driving system has the advantages like energy saving, environmental, wide speeding adjusting range, high performance and stable operation.
2. After the welding of bases for supporting devices of supporting roller and catching roller, vibration aging treatment should be applied for remove the welding stress. Then, use vertical lathe and boring-milling machine for integration fabrication. This process can guarantee the requirement of fabrication precision and dimension & location tolerance. Installation accuracy of rotary kiln is obviously improved.
3. Temperature measuring point is reserved at bearing base of supporting roller. It is mainly used for automation detection of kiln operation status by insert the measuring device.
Wet rotary kiln, as building material equipment, is widely used in metallurgy, chemical industry, building refractory material, environmental protection and other industries. The rotary kiln consist cylinder, supporting device, support device with retainer wheel, drive device, active kiln head, kiln end sealing device, coal injection pipe device and other components. Wet rotary kiln body shows a certain degree of tilt to horizontal level. The entire kiln body is supported by roller device. It also has retainer wheel device to control the kiln body in case it runs up and down. The drive system also has auxiliary drive that can make kiln body drive when major power is off and prevent kiln body bending and being out of shape besides major drive. Kiln head and kiln end sealing device uses advanced technology to ensure reliability of sealing.
1. Support device of advanced shaft structure, automatic temperature measuring device and electrical heating device.
2. Catch wheel of including mechanical wheel and hydraulic pressure.
3. Gears of single or double. The rotating speed is controlled by regulating motor, dc motor or variable frequency and speed regulation motor.
is used for making of cement clinker and there are dry and wet methods to make cement. Metallurgy chemical is used in metallurgy industry and ironworks for lean iron ore, chromium ore and ferronickel ore calciminertk is used for calcimine of high aluminum vandal och in refractory material industry.
molecular sieve calcination technology - jinan, shandong, china - shandong tianli energy co.,ltd
Molecular sieve material refers to a crystalline aluminosilicate material. It is also called saturated zeolite or zeolite. The crystal structure has regular and uniform pores, and the pore size is on the order of molecular size. Because it only allows molecules with a diameter smaller than the pore size to enter, it can screen the molecules in the mixture according to size, so it is called molecular sieve. Molecular sieve materials can be used as solid adsorbents in the chemical industry, and can also be used for drying, purification, separation and recovery of gases or liquids or as cracking catalysts in the petroleum refining industry. Molecular sieve catalyst materials suitable for different catalytic processes have been developed.
There are two kinds of molecular sieve zeolite materials: natural zeolite and synthetic zeolite. Among them, the preparation process of synthetic zeolite is as follows: raw material mixing ---- granulation ---- sieving --- drying --- calcination --- packaging, in which calcination is a crucial technical link of the whole process. The dried molecular sieve will be put into the calciner for calcination to obtain the finished molecular sieve.
The rotary calciner is a kind of high-temperature treatment equipment which is transformed on the basis of the traditional rotary drum dryer, by changing its heat source supply method. The material enters into the rotary drum of the calciner through the feeder. An arch-shaped heating device (built kiln body) is set outside the middle section of rotary drum. The furnace is equipped with fuel burners or electric heating elements. The FBT (furnace box temperature)is adjusted by the burner flame or the current of the electric heating element which is controlled by the automatic control system , so that the material is calcined at a certain temperature, and the calcination time can be controlled by adjusting the rotation speed of the rotary drum. The processed material is discharged from the lower end by the inclination of the rotary drum.
In addition to catalyst calcination technology, Tianli Energy also has rich engineering experience in catalyst spray drying technology, molecular sieve flash drying technology and molecular sieve calcination technology.
Recently, two sets of 300,000 tons/year refined salt drying systems exported to UCI, Surabaya, Indonesia by Shandong Tianli Energy were shipped successfully. Before, Tianli Energy has also successfully supplied drying system for the 50,000 tons/year MVR salt production line of UCI, Surabaya, Indonesia in 2017.
Tianli Energy paid high attention to the shipment of these d...
On March 5th, the waste lithium battery pyrolysis equipment sent to Ecopro in South Korea arrived at the project site. Lithium battery pyrolysis recovery technology is mainly to extract precious metals from decommissioned power lithium batteries for recycling, and Tianli Energy mainly provides the core pyrolysis rotary kiln process and technology.
The waste lithium batt...
Calcium chloride, a chemical substance composed of chlorine and calcium, has the chemical formula CaCl2. Slightly bitter. It is a typical ionic halide, which is white, hard pieces or particles at room temperature. Common applications include salt water, road ice melt and desiccant used in refrigeration equipment. Because it easily absorbs moisture and deliquesces in the ...
Recently, Shandong Tianli Energy signed a CPVC fluidized bed drying system supply contract with a petrochemical company in India.
This project is another overseas project of Tianli Energy following the 300,000 tons/year soda ash and 300,000 tons/year calcium chloride projects in Saudi Arabia and the pyrolysis project of waste lithium batteries in South Korea this year. ...
impacts of karst phenomena on engineering properties of limestone foundation bed, ar riyadh, saudi arabia | springerlink
Evaluation of mechanical and petrophysical properties of the karst limestone became essential to avoid future risks in the construction of new urban cities built on limestones. Therefore, this study aims to evaluate the impact of karsts phenomena on engineering properties of limestone foundation bed at Ar Riyadh in Saudi Arabia. Three hundred core plugs were obtained by rotary drilling at depths ranging from the ground surface to 20m collected from 24 boreholes in two sites: (1) karst limestone (KL) at Al Aziziyah district and (2) massive hard limestone (HL) at Hittin district in Ar Riyadh city, Saudi Arabia. Petrographic, SEM, EDX, and XRD analyses are used to identify the mineralogical composition and microstructures of limestone samples. The petrophysical properties included the ovendry density, P-wave, and porosity where the mechanical properties covered the uniaxial compressive strength (UCS), point load strength index (PLI), and rock quality designation (RQD) for the karst and hard limestone samples. KL is characterized by 17.11% total porosity, 14.71% water absorption, 32.1MPa UCS, 1.70g/cm3 ovendry density ( dry), 51% weathered RQD, 5.49MPa medium shear strength, and low modulus of deformation of the plate loading test. HL showed 11.63% total porosity, 9.45% water absorption 43.1MPa UCS, 2.50g/cm3 ovendry density ( dry), 78% hard to fresh rock affinity RQD, and 9.93MPa high strength and high modulus of deformation of the plate loading test. For the water absorption (%), KL at Al Aziziyah district showed a range of 12.8517.80% averaged 14.71%. HL at Hittin district varied between 7.04 and 11.29% with an average of 9.45%. KL proved to be dense with ovendry density ( dry) averaged at 1.70g/cm3 while HL showed very dense affinity of 2.50g/cm3. KL clarified a UCS range from 22.5 to 40.1MPa and an average of 32.1MPa while HL showed a range from 35.4t o 48.1MPa with an average of 43.1MPa. KL is moderately weathered with RQD average of 51% while HL showed a hard to fresh rock affinity of 78%. Point load test clarified a medium shear strength with 5.49MPa for KL and high strength of 9.93MPa for HL. Plate loading tests indicated low and high modulus of deformation for KL and HL, respectively. Results of petrographical analyses and XED of limestone samples showed that the strength parameters of samples mostly composed of micrite (mudstone/wackestone) and dolomite in hard limestone of Hittin district. In Al Aziziyah district (KL), the samples mostly consist of foraminifera and high amount of calcite as in karst limestone (wackestone/packstone). Rock mechanical tests with combination of fabric analyses have shown that strength parameters depend not only on the amount of karst but also on the amount of allochem. Major geomechanical differences between the two types of limestone provide the proper base for prioritizing areas to alleviate future risks and sustainable urban planning for decision makers. The karstic limestone, therefore, is considered as an acceptable foundation bed for light engineering structures. However, for heavy structures and buildings, improving the foundation bed strength by grouting, cement injection, and mat foundations is necessary to avoid future failure risks.
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The author wishes to thank the Najran University, Faculty of Engineering, Saudi Arabia for providing necessary logistic and technical support to carry out the research. Thanks also go to Prof. Dr. Alaa Mustafa Professor of sedimentary rocks, Geology Department, Faculty of Science, Al-Azhar University (Assiut Branch), for his critical review of the original manuscript and constructive suggestions for upgrading the clarity of the manuscript. The authors are greatly indebted to Prof. Dr. Abdullah M. Al-Amri, Editor-in-Chief, Arabian Journal of Geosciences, and the two anonymous reviewers for the given time and expertise to comment on the paper and for their constructive comments, which contributed to the improvement of the manuscript.
Abd El-Aal, A.K., Masoud, A.A. Impacts of karst phenomena on engineering properties of limestone foundation bed, Ar Riyadh, Saudi Arabia.
Arab J Geosci 10, 347 (2017). https://doi.org/10.1007/s12517-017-3089-7