Pengfei rotary kiln
Description:
Rotary kiln, or rotary calcining kiln (commonly known as rotary kiln), is a special heavy equipment. The rotary kiln can be divided into cement rotary kiln, lime rotary kiln, kaolin rotary kiln, rotary kilns for nickel, chromium, iron and lithium ore, coal efficient clean rotary kiln, titanium dioxide rotary kiln, magnesium oxide and zinc oxide rotary kiln, solid waste, hazardous waste, garbage, sludge incineration rotary kiln by calcined materials. It is widely used in building materials, metallurgy, chemical industry, environmental protection and other fields. Cement rotary kilns are the most widely used for calcining cement clinker, which is divided into two categories of dry and wet. Lime rotary kiln (also known as active lime kiln) is used to roast the active lime and dolomite for iron and steel plants and ferroalloy plants, refractory plants used to roast high bauxite and vanadium clays. Metallurgical rotary kilns are mainly used in the iron and steel metallurgical industry for the magnetization roasting of depleted iron ore, and chromium, nickel, iron, lithium and other non-ferrous metal ore roasting; chemical rotary kilns are used for firing minerals such as aluminum hydroxide, chromium ore and chromium powder, as well as oil sands refining, coal to oil and coal clean refining. Application of rotary kilns as pyrolysis furnaces for solid waste and critical waste in the environmental protection industry for the co-disposal of sludge and waste.
Rotary kiln, or rotary calcining kiln (commonly known as rotary kiln), is a special heavy equipment. The rotary kiln can be divided into cement rotary kiln, lime rotary kiln, kaolin rotary kiln, rotary kilns for nickel, chromium, iron and lithium ore, coal efficient clean rotary kiln, titanium dioxide rotary kiln, magnesium oxide and zinc oxide rotary kiln, solid waste, hazardous waste, garbage, sludge incineration rotary kiln by calcined materials. It is widely used in building materials, metallurgy, chemical industry, environmental protection and other fields. Cement rotary kilns are the most widely used for calcining cement clinker, which is divided into two categories of dry and wet. Lime rotary kiln (also known as active lime kiln) is used to roast the active lime and dolomite for iron and steel plants and ferroalloy plants, refractory plants used to roast high bauxite and vanadium clays. Metallurgical rotary kilns are mainly used in the iron and steel metallurgical industry for the magnetization roasting of depleted iron ore, and chromium, nickel, iron, lithium and other non-ferrous metal ore roasting; chemical rotary kilns are used for firing minerals such as aluminum hydroxide, chromium ore and chromium powder, as well as oil sands refining, coal to oil and coal clean refining. Application of rotary kilns as pyrolysis furnaces for solid waste and critical waste in the environmental protection industry for the co-disposal of sludge and waste.
Introduction
Rotary kiln, or rotary calcining kiln (commonly known as rotary kiln), is a special heavy equipment. The rotary kiln can be divided into cement rotary kiln, lime rotary kiln, kaolin rotary kiln, rotary kilns for nickel, chromium, iron and lithium ore, coal efficient clean rotary kiln, titanium dioxide rotary kiln, magnesium oxide and zinc oxide rotary kiln, solid waste, hazardous waste, garbage, sludge incineration rotary kiln by calcined materials. It is widely used in building materials, metallurgy, chemical industry, environmental protection and other fields. Cement rotary kilns are the most widely used for calcining cement clinker, which is divided into two categories of dry and wet. Lime rotary kiln (also known as active lime kiln) is used to roast the active lime and dolomite for iron and steel plants and ferroalloy plants, refractory plants used to roast high bauxite and vanadium clays. Metallurgical rotary kilns are mainly used in the iron and steel metallurgical industry for the magnetization roasting of depleted iron ore, and chromium, nickel, iron, lithium and other non-ferrous metal ore roasting; chemical rotary kilns are used for firing minerals such as aluminum hydroxide, chromium ore and chromium powder, as well as oil sands refining, coal to oil and coal clean refining. Application of rotary kilns as pyrolysis furnaces for solid waste and critical waste in the environmental protection industry for the co-disposal of sludge and waste.Technical note
The rotary kiln calcining system produced by "Pengfei" is equipped with technological innovation, in which advanced hydraulic thrust roller device, high precision metering piston pump, high-precision speed control valve and contact graphite block sealing device and other domestic advanced technology are adopted. In order to improve the degree of automation, the kiln head using industrial television to see the fire, process simulation fluorescent screen, calcinations zone with the use of infrared scanner to directly reflect the burning situation of calcining zone on the computer, and the use of these new technologies is intuitive, easy to operate, reliable use. The thermal system was stabilized and the operation rate of the equipment is improved, with a 10% increase in operation rate, a 5-10% increase in production and a 15% reduction in heat consumption compared to the same specification equipment.Process specification
The rotary kiln is also used to calcine clay, limestone and slag drying, etc., in the production of refractory materials, the use of rotary kiln calcination of raw materials, so that its size stability, strength increases, and then processed into shape. In non-ferrous and ferrous metallurgy, iron, aluminum, copper, zinc, tin, nickel, tungsten, chromium, files and other metals are sintered and roasted in rotary kilns as smelting equipment for ores, concentrates, intermediates, etc. For example, it is used in aluminum production to roast aluminum hydroxide into alumina; it is used in ironmaking to produce pellets for blast furnace ironmaking; it is used in foreign "SL/RN method", "Krupp method" for direct reduction of iron ore; it is used in chlorinated volatile roasting method to extract tin and lead. The ore is magnetized and roasted in a rotary kiln to change the ore's original weak magnetism to strong magnetism to facilitate the magnetic separation. In the chemical industry, rotary kilns are used to produce soda, calcine phosphate fertilizer, barium sulfide, etc. It has the advantages of low energy consumption, low electricity consumption and the utilization of medium and low grade phosphate ore, and has been strongly promoted. In terms of environmental protection, use cement kilns to incinerate hazardous waste and garbage, make waste emissions harmless, use waste as fuel, save coal dust and achieve resource application of waste.Technical
Specification (m) | φ2.8/2.5×44 | φ3×48 | φ3.2×50 | φ3.3×50 | φ3.5×54 | φ4×60 | φ4.3×64 | φ4.8×74 | φ5.0×74 | φ5.6×87 | φ6.0×95 | ||
Capacity (ton/day) | 300 | 600-700 | 1000 | 1200 | 1500-1800 | 2500 | 3500 | 5000 | 6000 | 8000 | 10000 | ||
Slope of kiln shell (%) | 3.5 | 3.5 | 3.5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | ||
No. of supports | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | ||
Type of thrust roller | Mechanical | Mechanical or Hydraulic | Hydraulic | Hydraulic | Hydraulic | Hydraulic | Hydraulic | Hydraulic | Hydraulic | Hydraulic | Hydraulic | ||
Rotating speed of kiln body | Main drive (r/min) | 0.445-2.22 | 0.676-3.38 | 0.36-3.57 | 0.36-3.57 | 0.39-3.9 | 0.41-4.07 | 0.4-4.0 | 0.35-4 | 0.35-4 | Max4.23 | Max5 | |
Auxiliary drive (r/min) | 4.75 | 9.36 | 6.5 | 5.61 | 7.66 | 8.2 | 7.93 | 8.52 | 7.58 | 8.7 | 9.2 | ||
Main drive | Electric motor | Model | ZSN4-225-21 | Z2-101 | ZSN4-280-191B | ZSN4-280-191B | ZSN4-315-092 | ZSN4-355-092 | ZSN4-355-12 | ZSN4-450-092Lp44 | ZSN4-450-092 | ZSN4-450-12 | ZSN4-500-092 |
Rated power (kw) | 55 | 100 | 160 | 160 | 220 | 315 | 400 | 630 | 710 | 800 | 950×2 | ||
Speed regulation range (r/min) | ~1000 | ~1500 | 1500 | 1500 | 1000 | 1000 | 100-1000 | 1500 | 87.5~1000 | 100~1000 | 100~1000 | ||
Rated voltage (V) | 440 | 220 | 440 | 440 | 440 | 440 | 440 | 660 | 600 | 600 | 600 | ||
Reducer | Model | ZS145-1-1 | ZS145-1-1 | ZSY-450-40-V | ZSY450-40 | NZS995-28VIBL | YNS1110-22.4VBR | YNS1400-3105VIBL | JH710C-SW305-40 | JH280C-45 | JH900C-SW305-25 | JH900C-SW305-28 | |
Total ratio | 49-63 | 50 | 40 | 40 | 28 | 22.4 | 31.5 | 42.226 | 28 | 23.901 | 26.646 | ||
Auxiliary drive | Electric motor | Model | Y122M-4 | Y160M-6 | Y160M-4B | Y160M-4 | Y200L1-6 | Y180L-4 | Y200L-4 | Y225M-4 lp44 | Y250M-4 | Y280M-4 | Y315M1-4 |
Rated power (kw) | 4 | 7.5 | 15 | 11 | 18.5 | 22 | 30 | 55 | 55 | 90 | 132 | ||
Speed regulation range (r/min) | 1440 | 970 | 1460 | 1460 | 970 | 1470 | 1470 | 1480 | 1480 | 1480 | 1490 | ||
Rated voltage (V) | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 | ||
Reducer | Model | ZL35-16 | ZL35-7-1 | ZSY160-31.5-‖ | ZSY355-31.5 | ZSY355 | YNS440-45‖R | YNS497-45ZC | JH220C-SW302-28 | JH280C-45 | ZSY400-35.5-︱ | ZSY450-35.5-︱ | |
Total ratio | 40.44 | 14 | 31.5 | 31.5 | 45 | 45 | 45 | 28 | 45 | 35.795 | 35.795 | ||
Total weight (excluding refractory brick) (ton) | 177 | 213 | 280.6 | 317 | 341 | 434 | 562 | 854 | 885 | 1201 | 1580 |
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