Calcining Equipment

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.

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

Pulverized coal burner is the key equipment of calcination system in metallurgical, chemical, cement, quicklime rotary kiln, its performance and operation relate to product quality, capacity, energy consumption, environment and so on. Our company design pulverized coal burner is according to different kiln type, different feature of pulverized coal and different technical conditions, with typical structure and reasonable technical parameters, ensuring the pulverized coal, primary air, secondary air mix fully, make high burning efficiency, larger heat intensity, better fire shape and easy control, its widely used in various dry and wet cement rotary kiln, steel sintering pellet rotary kiln, lime rotary kiln, chemical rotary kiln, alumina clinker rotary kiln, power plant boiler and so on. Application: Burning system of rotary kiln in power, chemical, metallurgy, construction industry and so on. Our products advantages : 1.Reasonable structure design, fire adjustment easily, not only adjustment air volume of axial air, swirling air, but also adjustment outlet section area of axial air , swirling air and coal air, to reach the goal of change outlet air speed of burner, to ensure fuel burning normally; 2.Less use of primary air, and coal air mix with primary air, secondary air fully, make burning complete, to reduce coal consumption effective;  3. Nozzle is made of special material, heat resistance and replacing easily; 4.Fire cover forming bowleffect, there is not high swirl with fire at beginning, to avoid the peak value of temperature, make the fire temperature distribute uniform and reasonable; 5.Because the combustion air mix pulverized coal fully, the burning is fast and safety, co and nox content from kiln tail exit gas are reduced, in favor of equipment operation safety and realize environmentally friendly production;

Chemistry gypsum powder production line:ªG building gypsum powder. Chemistry gypsum is refers to the industrial production process, forms industrial products, such as desulphurization gypsum, phosphorus gypsum, fluorine gypsum, lemon gypsum and so on.Raw material characteristic:the surface water is more than 20%, the ingredient relative is unstable. Building gypsum powder production technology introduction: Uses raw material pre-drying , bolling stove calcine that two step calcine technique of production, use car loader to transport raw material from dump site to material basket, by beater, the belt conveyer to transport uniformly to the dryer(the heat source of this place is that burn coal the hot-blast stove), though collection powder equipment vertical transmisslon equipment brought into boilling stove calcined(that furnace heat is the htf stove), after calcination shipped goals mushroom grinding machine modified and cooling, and from promotion transportation to the warehouse, packaging warehouse. Wooden case & plaste

This production line contains a series of machine such as dust collector, ebullience calciner, Heat-conducting oil boiler etc.If you want to know more detailed information ,please consult me freely. 2. The main composition of gypsum is dehydrate gypsum©vCaSO4.2H2O©w. However, the gypsum powder used in practical production (such as the gypsum powder for gypsum board, for mould, for plastering) is to dry and dewater the dehydrate gypsum, reduce the content of crystallization water in it, so the standard of crystallization of gypsum powder can meet the needs of all kinds of gypsum powder, because it can change into plaster of pairs. Plaster of pairs can re-integrate with water when it is applied into production, and it can be processed into new type building materials with a high intensity, such as gypsum board, gypsum block, etc. 3. Existing gypsum powder drying technologies the following: the heat, produced by the burning of medium in the stove, is transmitted to frying cauldron and pipe of circumgyrate stove, then gypsum powders are added, after mixture and drying through milling equipments, the finished product is transmitted to the store house. In this way, the quality of gypsum powder is cheesy, because the content of crystallization water is uneven.

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.

What is Rotary Kiln? Rotary kiln is composed of cylinder, gears, support device, kiln liner and kiln tail sealing equipment, kiln head hood and combustion. Cylinder as heated pivoting part, made of high-quality carbon steel plate. Rotary Kiln Features: 1. Support device: advanced shaft structure, automatic temperature measuring device and electrical heating,. 2. Catch wheel: including two kinds mechanical wheel and hydraulic pressure 3. Gears: single or double. Control the rotating speed by buncher, DE machine and frequency variable motor. Be reliable, energy-saving, and efficient. 4. Cylinder tyre bolster: lower bolster has three types: fixed, zoom and floating. The structure is simple, replacement is convenient and won¡¯t hurt cylinder. 5. Sealing equipment: there are many kinds for choice according to kiln models, including air cylinder edge sealing, spring edge sealing, and graphite block sealing and combination for above. 6. Kiln head hood: including stationary type and flexible type. Working Principle of Rotary Kiln: 1) With a certain slope to the level, the whole kiln body is supported by rollers and fitted with thrust rollers to control up and down movement of the kiln body. 2) Besides main driving unit for driving system, it is also fitted with the auxiliary driving unit so as to ensure the kiln body still can rotating when the main motor is powered off and prevent it from deforming. 3) The kiln head adopts housing type sealing and kiln rear uses axial contact sealing unit so that reliability of sealing could be ensured. Types: Rotary kiln belongs to building material equipment, and it can be divided into cement kiln, metallurgy chemical kiln and active lime kiln, porcelain kiln according, building material kiln, calcined petroleum coke rotary kiln to different materials. Application of Rotary Kiln: 1) Rotary kiln is the Thermal Equipment, heating materials, in cement industry for calcining clinker. 2) It is also used in various industries, such as cement, nonferrous metallurgy, ferrous metallurgy, chemistry, building, refractory material, environmental protection, etc. Export standard container 20GP OR 40GP, 40HQ, FR container, in bulk, the spare parts in wooden case.

The cement kiln, also called cement rotary kiln, which is mainly used for calcinating cement clinker, is the main equipment for the new dry type cement production line. This cement equipment is mainly composed of cylinder, supporting device, supporting device with catch wheel, transmission device, lubrication device, mobile kiln head and sealing device at the end of the kiln.

gypsum powder machine annual capcity : 20000T to 200000T 1.1 work system: Broken parts: 300 days times 16 hours Grinding parts: 300 days x 24 hours Burning parts: 300 days x 24 hours Store conveying parts: 300 days x 24 hours 1.2 the time: 3-5 T/h (product). 1.3 raw materials: natural gypsum (massive, the diameter is not more than 300 mm). 1.4 electricity requirement: Three-phase AC380V, 50 hz; Single-phase AC220V, 50 hz. 1.5 emissions standards: No waste water discharge waste residue, emissions accord with state environmental protection emissions standards. 1.6 with hot requirements: Coal, the chain grate stoker (gas, light oil, heavy oil). 1.7 product range of use : Suitable for construction building materials industry (paper face plasterboard, gesso block, paint the plaster, cement additive, etc.). Brief production The crusher breaks the big sized gypsum ore into small ones with 25mm in diameter. After storing and conveying,they are taken into the mill for grinding. Then, the powder concentrator carries the gypsum powders which match to the needed fineness to calciner for calcining. Others are back to the mill until it is qualified. In the end, after calcining, the qualified gypsum powder are sent to clinker container for storing, or are sent to the manufacturing workshops for use. Equipment list for 60,000 tons Gypsum powder production line Crusher systemCrusher800x120030kw ElevatorTH3157.5kw Raw material container60m31 set Mill systemThe body of raymond mill4R3216 2 sets Driver motorY225S-437kw x 2 Air blower motorY220M-430kw x 2 Calcining systemThe body of calciner1.8m x1.8m1 set Roots blower1 set18.5kw High voltage electrostactic2.1mx12m1 set The content of soluble without water gesso: < 5%. 5.5, initial set time: 3-8 min can be adjusted. 5.6, final set time: 10-20 min can be adjusted. Six, origin requirements (not including raw materials and finished products of warehouse) Equipment need workshop specifications: 30 meters in length, width is 15 m.