- Teeth Whitening[10]
- Nitrogen Fertilizer[1]
- Organic Fertilizer[2]
- Waste Management[1]
- Wood Crafts[2]
- Dental Equipments[2]
- Medical Consumables[10]
- Ultrasonic[6]
- Shower Caps[1]
- Household Gloves[10]
- Electric Kettles[1]
- Beverage Processing Machinery[1]
- Cement Making Machinery[1]
- Other Construction Material Making Machinery[10]
- Grinding Equipment[2]
- Cleaning Equipment[1]
- Concrete Pumps[2]
- Harvesters[3]
- Bean Product Processing Machinery[1]
- Fruit & Vegetable Processing Machinery[2]
- Rice Mill[1]
- Other Food Processing Machinery[5]
- Boring Machine[1]
- Cranes[5]
- Industrial Furnace[1]
- Crusher[4]
- Drilling Rig[4]
- Mine Mill[3]
- Other Mining Machinery[7]
- Other Machinery[1]
- Packaging Machinery[3]
- Paper Processing Machinery[1]
- Paper Product Making Machinery[1]
- Tablet Counter[1]
- Plastic Laminating Machinery[2]
- Plastic Recycling Machinery[1]
- Plastic Product Making Machinery[3]
- Rubber Processing Machinery[1]
- Nonwoven Machinery[2]
- Wood Pellet Mill[1]
- Wood Router[1]
- Laminator[1]
- Other Plastic Products[5]
- Safety Gloves[10]
- Garbage Truck[1]
active lime rotary kiln production line
active lime rotary kiln production line:Rotary Kiln technology.
150mt 200mt 300mt 500mt 1000mt per day
with different usage.
@-1. Brief introduction of active limestone technical process;
Active limestone production line is composed of three main machineries—vertical preheater, rotary kiln and vertical cooler, waste gas processing system and pulverized coal preparation system.
The qualified crushed limestone is kept in bunker, and transported into the top bunker of preheater by transporting system. The charging quantity of the preheater top bunker is controlled by two level indicators upper and lower, then through the feeding tube distribute the limestone uniformly into every room of the preheater.
The limestone heated by the high temperature flue gas in the tail of rotary kiln, then pushed back into the rotary kiln by hydraulic push rod. The limestone is calcined in the rotary kiln under high temperature, then invert into active limestone and enter into the cooler, it will be discharged after cooled by the cooling air. Through the secondary air by preheated entre into the kiln, the exhaust gas will be discharged by the exhaust treatment system.
@-2.Introduction of equipment
1. Vertical preheater
On the top of the preheater is a bunker with level indicator to control the height of feed layer; the bunker is connected with the preheater by a sliding feeding pipe, and the dolomite will be transported into preheater through this pipe, in addition the pipe could seal the material and prevent cold enter into the preheater. After row material enter into the preheater, take advantage of the hot flue gas released after caclining to backward flow towards feeding direction, have a full heat exchange to make the materials preheated uniformly, then the material will be pushed into kiln by means of every hydraulic push rod to shorten the calcining time of material in the kiln, so as to reduce heat consumption and save coal, effectively reduced production cost. The gas released after heat exchange will be injected into the atmosphere after treatment by dust catcher.
2. Rotary kiln
The rotary kiln is the key equipment for active limestone production which composed with barrel, gearing device, riding and catch wheel supporting device, kiln head, kiln tail sealing, cover of kiln head and combustion apparatus etc.
The barrel of rotary kiln is rotating component of heating which made of high quality steel plate with flange welding, and have a certain inclination with the level, the whole kiln body is supported by riding wheel device, and has a mechanical or hydraulic catch wheel device to control axial movement of the kiln. Transmission device makes the barrel body rotating according to the requirement through the gear in the middle of the barrel. The transmission part not only include main driving device but also include auxiliary transmission device, which can keep the kiln rotate in low speed and prevent deformation when installing, maintaining and main transmission power down. In order to prevent cool air get into and flue gas out of the rotary kiln, a reliable kiln tail and head composite fish scale sealing device are installed on both feeding (tail) and discharging (head) hole. The rotary kiln in bigger diameter and shorter length is usually used in the engineering; it can not only reduce the fluctuating range, extend accretion forming cycle but also save the area.
3. Vertical cooler
The high temperature material calcined in rotary kiln flow into the vertical cooler inlaid with fire-proof material. The cooler has four cooling discharging holes, and the discharging speed of everyone could be controlled separately according to the material temperature. Central blast cap and chamber cooling cap are distributed in the cooler uniformly, and the blast cap connected with fan by tube, material layer piled up on the blast cap sprinkling downward along generatrix of blast cap, and have conversely contact with the cooling air released from the gas hole of every layer in the blast cap, completing heat exchange. The material that cooled to 80°C+ environmental temperature is discharged from the cooler gradually by the action of vibrating unloader. The heated air enters into the rotary kiln directly though kiln head cover, which as secondary air to participate in combustion. The cooler has no moving parts, simply structure, good cooling effect, and little equipment maintenance.
