As a new type of environmentally friendly materials, ceramic is widely used in petroleum, construction, chemicals, sewage treatment and other industries. Rotary kiln is the key equipment of ceramic calcining system. Its performance will directly affect the quality and cost. For the different characteristics and requirements of the traditional calcining ceramic materials, we developed the new series rotary kiln. It has the characteristics of even calcining, large capacity, high operation, energy saving, easy operation and maintenance as well as long machine life, and can reduce the equipment operating costs significantly.
Ceramic rotary Kiln features :
1. For the characteristics and requirements of ceramic calcining process, we make optimize design on kiln head and kiln tail. It solved the problems of the discharge reverting and dust leakage at kiln tail to have smoothly conveying.
2. It is micro-negative pressure operation in the cylinder with low dust pollution;
3.It is even calcination, large capacity and easy to operation and maintenance.
Ceramic rotary Kiln consists of gearing, supporting rollers, catching wheels, cylinder, kiln head, kiln tail sealing and other components. The main structural features are:
1.There are 2 to 3 fulcrums on kiln. It is easy to ensure the contact surface of rollers and kiln tires parallel to the cylinder axis during installing;
2.There are specific gap between the tire and cylinder. It strengthens the cylinder by confining tires after thermal expansion;
3.The supports use rolling bearing which simplified bearing structure. It reduces energy losses during Kiln operation and makes it easier to maintain and repair;
4.In order to convenient installation and commissioning, there is a kiln slow rotating devices to maintain kiln nonconventional running operation while main transmission system is under overhaul or other abnormal conditions which can occur cylinder bending and deformation during the cooling process.
5.The kiln uses mechanical or hydraulic catching wheels. They are high accuracy and reliability. The ridding rollers and tires are evenly wearing on the entire width direction and are handy adjustment.;
6.The kiln head and tail uses elastic flake radial contact sealing. It can fit the cylinder shape inaccurate and kiln deflection & axial movement. It has better sealing performance and reliability, longer service life and convenient replacement.
As a new type of environmentally friendly materials, ceramic is widely used in petroleum, construction, chemicals, sewage treatment and other industries. Rotary kiln is the key equipment of ceramic calcining system. Its performance will directly affect the quality and cost. For the different characteristics and requirements of the traditional calcining ceramic materials, we developed the new series rotary kiln. It has the characteristics of even calcining, large capacity, high operation, energy saving, easy operation and maintenance as well as long machine life, and can reduce the equipment operating costs significantly. Ceramic rotary Kiln features : 1. For the characteristics and requirements of ceramic calcining process, we make optimize design on kiln head and kiln tail. It solved the problems of the discharge reverting and dust leakage at kiln tail to have smoothly conveying. 2. It is micro-negative pressure operation in the cylinder with low dust pollution; 3.It is even calcination, large capacity and easy to operation and maintenance. Ceramic rotary Kiln consists of gearing, supporting rollers, catching wheels, cylinder, kiln head, kiln tail sealing and other components,The main structural features are: 1.There are 2 to 3 fulcrums on kiln. It is easy to ensure the contact surface of rollers and kiln tires parallel to the cylinder axis during installing; 2.There are specific gap between the tire and cylinder. It strengthens the cylinder by confining tires after thermal expansion; 3.The supports use rolling bearing which simplified bearing structure. It reduces energy losses during Kiln operation and makes it easier to maintain and repair; 4.In order to convenient installation and commissioning, there is a kiln slow rotating devices to maintain kiln nonconventional running operation while main transmission system is under overhaul or other abnormal conditions which can occur cylinder bending and deformation during the cooling process. 5.The kiln uses mechanical or hydraulic catching wheels. They are high accuracy and reliability. The ridding rollers and tires are evenly wearing on the entire width direction and are handy adjustment.; 6.The kiln head and tail uses elastic flake radial contact sealing. It can fit the cylinder shape inaccurate and kiln deflection & axial movement. It has better sealing performance and reliability, longer service life and convenient replacement. contact: Annchen Email ID:ec03@zkcorp.com http://www.zkcomp.com/Calcining/84.html
Ceramic kiln is an equipment to do burning to the ceramic biscuit. By having the burning, the biscuit complete the oxidization or reductio process and becomes pottery or porcelain. The craftsmen in the filed often say that ceramic kiln is the key equipment and burning process is the key process in ceramic making.
Ceramic Fiber product is made from long flexible bulk fiber which is a high temperature fire resistance material containing of pure alumina, silica & zirconia. It is used for various applications some of are reformer of furnace, tube seal, gasket & expansion joint, high temperature pipe, duct, turbine insulations, kiln car insulations & seals, boiler insulation and many more insulation purposes.
Brief introduction of shuttle kiln: shuttle kiln and tunnel kiln are important sintering equipment in ceramic and procelain insulator industries. We have the know-how for design high temperature high-speed burner equipped shuttle kiln for electrical porcelain insulators. The qualiffied products rate can reach 95%~99% by utilization of this shuttle kiln. The temperature differential within the sintering chamber of the shuttle kiln is less than +/-5 degree centigrade and control accuracy at thoumal couple point can be +/-1degree centigrade. Exhaust heat can be recycled to preheat air for fuel burning. The shuttle kiln can burn natural gas, coal gas, gasified heavy oil as fuel. The tunnel kiln is also widely used in continuous sintering of small size ceramics and insulators. CNMEs business activities cover national and international engineering, Generation Stations, Electrical Engineering Equipment, all kinds of electrical equipment, Test And Design and so on. The activities consist of the industries of high voltage power transmission and distribution, diesel power generation, thermal power generation, Transformer Test Laboratory Design, Electrical Lab Design And Solution, Power Plant Design and so on.
Calcined Bauxite: Calcined Bauxite is obtained by calcining (heating) superior grade Bauxite at high temperature (from 850 oC to 1600 oC). This removes moisture thereby increasing the alumina content. Compared to an alumina content of about 57 % to 58 % in raw Bauxite, Calcined Bauxite has an alumina content of 82 % to 86 %. The heating is carried out in rotary kilns. Calcination is done at different temperatures ranging from 850 oC to 1600 oC depending upon the customer’s application. We export Calcined Bauxite for various applications such as refractory bricks, abrasives, steel polishing, etc. We provide consistency in quality and availability of Calcined Bauxite at extremely competitive prices. Applications of Calcined Bauxite: Refractory Grade Calcined Bauxite (CB - I and CB - II Grade) : To make refractory grade, Bauxite is thermally treated at 1600 oC to produce Calcined Bauxite where the Alumina content is mostly above 82%. Brown Fused Alumina, Proppants and Road Surfacing : To make the above grades, Bauxite is thermally treated at 1000 oC - 1200 oC to produce Calcined Bauxite where the Alumina content is anywhere between 80-88% depending on the requirement. Minimum Order Quantity : 1 Containers
Hello, We have a Seller who is offering Calcined Bauxite as follows. Calcined Bauxite is a value added product processed form of bauxite, calcined at high temperatures in a Rotary Kiln. It is Mainly used in Refractories in manufacturing of Refractory/Fire Bricks and Castables, In Abrasives industry for products like grinding wheels, sandpaper, and polishing compounds etc. to provide Hardness In Welding Electrodes as a coating material. Calcined Bauxite is made as per the product Ranging from Al2o3- 76% to 88% with price as per the different qualities at different rates. Our Rotary Kiln production capacity - 1500MT per month. Some companies require 76-80% material for High Alumina Cement. Some companies require 80-85-88% material for FireBricks. So we manufacture as pet demand. If any refractories require this product, the Seller can supply this Calcined Bauxite as per their specification. Please let us know the target price, specification, quantity per month required by the buyer to enable us to offer the same. We look forward to hearing from you.
Magnesia Bricks Description Magnesia Bricks are alkaline refractory materials. These products have over 90% magnesium oxide content and adopt periclase as the principal crystalline phase. Magnesia Bricks can be divided into two categories of Burnt Magnesia Bricks and Chemical Bonded Magnesite Brick. They have excellent performance of superior high temperature mechanical strength and volume stability. Magnesia Bricks can service in the high temperature of 1750.. They are ideal products for glass furnace application. Magnesia Bricks Features: It is a kind of alkaline refractory product with periclase as main phase magnesite-alumina spinel clinker as basic material. the product has such characteristics as good temperature vibration, good strength and volume stability in high temperature. Magnesia Bricks Application Basic open-hearth furnace for steelmaking Electric furnace bottom and wall Permanent lining of oxygen converter Non-ferrous metal metallurgy furnace Hyperthermia tunnel kiln Lining of rotary cement kiln Heating furnace bottom and wall Regenerative chamber of glass furnace Magnesia Bricks Properties High Refractoriness Good alkaline slag erosion resistance High apparent initial softening temperature Good thermal conductivity High thermal expansion Magnesia Bricks Manufacturing Process Burnt Magnesia Bricks are manufactured with magnesite clinker as the raw material and fired in the high temperature of 1550~1600 after smashing, burdening, mulling and molding. High-purity products can be fired in the temperature that over 1750. Chemical bonded magnesite brick is produced with certain chemical bonding through mixing, molding and drying.
GENERAL INFORMATION: Fireclay bricks are made from clinker clay by mixing, forming, drying, sintering and machining. The Al2O3 content ranges from 36% to 42%. Fireclay bricks feature stable mechanical strength and good thermal shock resistance, withstanding high temperature up to 1750. They are commonly applied as refractory lining directly exposed to heat or backup insulation layer in all kinds of industrial kiln or laboratory furnace. ADVANTAGES: Low thermal conductivity High refractoriness High mechanical strength Excellent thermal shock resistance Non standard sizes and shapes are available upon request APPLICATIONS: Petrochemical process heater Heat treatment furnace Ceramic firing kiln Cement rotary kiln Glass melting tank Backup insulation TECHNICAL DATA: ITEM: ZGN42 GN42 RN42 RN40 RN36 Al2O3 ≥%: 42 42 42 40 36 Fe2O3 ≤%: 1.6 1.7 - - - C.C.S. Mpa≥: 58.8 49 29.4 24.5 19.6 Refractoriness≥ºC: 1750 1750 1750 1730 1690 Permanent Linear Change ≤% 1350ºC x 2hrs: - - - 0~-0.3 0~-0.5 1450ºC x 3hrs: 0~-0.2 0~-0.3 0~-0.4(x 2hrs) - - Refractoriness under Load(0.2 Mpa)≥: 1450 1430 1400 1350 1300 Apparent Porosity ≤%: 15 16 24 24 26 Note: 1) ZGN42 and GN42 are used in blast furnace. 2) RN42, RN 40 and RN 36 are used in hot blast stove. 3) Fireclay bricks can be designed and manufactured upon customers requirements. 230X114X65mm 230x114x76mm
Calcined bauxite is produced by sintering/calcining with natural bauxite ore of low iron, low alkali at temperatures of 1600 - 1800 degree Celsius in the rotary kiln or round kiln through pre-heationg, calcination, cooling and other processes. During Calcining, it can be removed impurities and improving the content of alumina. Refractory grade bauxite has high refractoriness, good mechanical strength and moderate slag resistance. Therefore calcined bauxite is one of the most important raw materials for the production of shaped and unshaped refractories for the steel industry, foundries, glass and cement plants.
