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2024
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02
The use, basic structure and working principle of cement machinery vertical kiln First, the use
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The use, basic structure and working principle of cement machinery vertical kiln
First, the use
The mechanical vertical kiln is an important equipment for calcining ordinary silicate cement clinker.It can be used by cement plants above 425# with an annual output of 44,000 to 200,000 tons.The kiln adopts mechanical operation for feeding and unloading, which is suitable for various calcination methods for calcining cement clinker in existing mechanical vertical kilns.
2. Basic structure and working principle
The mechanical vertical kiln is mainly composed of a feeding device, a kiln body, a unloading device, a unloading transmission device, a material sealing and discharging device, etc.
1.Feeding device
Including feeding and smoke exhaust parts.The feeding part is composed of a transmission part and a single sprinkler slide.The single feeding roller is mounted on the worm gear shaft and then rotates in the kiln cover.The angle adjustment of the spreader cloth is realized by an electric lifting device.The angle of sprinkling is adjusted by pulley blocks, wire ropes, anti-torsion devices, etc., and the raw material balls are evenly sprinkled on the material surface in the kiln.The kiln cover adopts a double-layer structure, the middle layer uses insulation materials to prevent radiant heat, and the kiln door adopts a kiln sealing structure, which can meet the closed-door operation.
2.Kiln body
The kiln body is rolled and welded with steel plates.The lower part of the kiln body has two layers of iron bricks and four layers of liners along its cylinder wall to avoid wear on the cylinder body during cutting and reduce the number of times the lower refractory bricks are replaced.
3.Unloading transmission device
The unloading transmission part adopts an electromagnetic speed-regulating asynchronous motor, which is connected to the high-speed shaft of the reducer through a rod-pin coupling.The low-speed shaft of the reducer is also connected to the worm gear reducer through a rod-pin coupling. The worm gear of the reducer is matched to the shaft gear, and the large gear is mounted on the vertical shaft, which drives the vertical shaft to rotate at a speed of 1.22~12.2r/h through meshing.
4.Tray tower unloading device
The tray-tower unloading part is composed of the top of the tower, the unloading tray, the hub, the liner, the iron brick, etc.The unloading disc is assembled on the hub, and toothed liners are installed on the corresponding cylinder wall around the unloading disc. After the top of the tower and the unloading disc hub are assembled as a whole, they are fastened with coupling fasteners and assembled on the drive shaft.The entire pan tower grate rotates with the drive shaft, so that the cement clinker burned in the kiln is broken through the teeth of the grate and the materials are squeezed and broken with each other. After the grate is unloaded and the vent hole is opened, it falls into the tapered funnel and flows into the material sealing pipe along the cutting chute.The characteristics of the pan-tower unloading device are: air enters the kiln evenly vertically and upward from the pan-tower grate hole, the central part of the vent hole is higher, the hole is concentrated, the area accounts for a large proportion, and the central part is better ventilated.Unloading is to discharge the material smoothly and evenly according to the cross-section of the material.Strong ability to break clinker.Between the unloading tray and the top of the tower, the connecting bolts between the unloading tray and the hub are tightened, and spot welding is used to prevent loosening.
5.Material sealing and discharging device
A vertical material sealing tube is used, and a vibrating feeder is provided under the material sealing tube.The device uses the material column to lock the wind. The user selects the material seal controller according to the requirements of the conveying type of the process. It is recommended to use r-ray control to keep the material column at a certain height, which can lock the wind and make the material unload smoothly.This kind of material sealing structure is simple, easy to operate, and timely unloading.
Chaoyang Liaoxi Heavy Machinery Manufacturing Co., Ltd. produces a complete range of cement machinery vertical kilns, with independent design and complete installation capabilities, complete processing technology, product quality clearance and stable use. Manufacturers in need are welcome to visit our factory for procurement.
Cement vertical kiln,Cement vertical kiln production line,Ball mill、Rotary dryer
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