simple structure high temperature preheater

 Brief Introduction                                                                           

Active lime production line lime calcination rotary kiln lime kiln

Qualified limestone stores in silos and be shipped through the pre-heater by the elevator into the silos which is on the top of the pre-heater. The pre-heater on the top of silos is consisted of top and bottom level meter controllers which control the feeding capacity. Then through the feed tube the limestone is distributed to the indoor compartment of the pre-heater.

The limestone in the pre-heater is heated to around 900 ° C by the kiln flue gas of 1150 ° C. At this time, about 30% of the limestone has been decomposition. Then the limestone is put into the rotary kiln by the hydraulic stem. In the rotary kiln the limestone sinters and decomposes into CaO and CO2. Then the decomposed limestone goes into the cooler and is cooled to about 100 ° C by the cold air and then is discharged. The 600 ° C hot air after heat exchange goes into the kiln and combusts with gas. The Exhaust gas blended with the cold wind go to the bag filter through the suction fan and then through the exhaust fan into the chimney.

The limestone out of the cooler enters into the lime storehouse through the vibrating feeder, chain bucket conveyor, bucket elevator and belt conveyor. Whether to carry out screening and other procedures depends on customer requirements.

Main technical parameters                                                            

About us:                                                                                        

Henan Zhongke Engineering & Technology Co., Ltd. is specialized in heavy equipment like various crushers, stone jaw crusher machine, magnetic separators, mining machines, bricks and blocks machines, cement production line, AAC block line, etc., which is located in the middle of China. Our competitive price, high quality products and excellent after-sales service had gain us good reputation in this field

Qualification & honour:                                                                   

Scenes of Workshop:                                                                     

packaging & shipping                                                                      

International cooperation:                                                               

Pre-sale services: 

1. Select proper equipment model;  
2. Design and manufacture products according to clients' special requirement;
3. Arrange for visiting our factory, assist them to handle relative procedure, 

Services during the sale:

1. Make sure goods prepared within delivery time;

2. Pre-check and accept products ahead of delivery;

3. Prepare documents required to help customer pass customs clearance.
4. Help clients to make Project evaluation and feasibility analysis and draft solving plan

After-sale services:

 1. Assist clients to prepare for the first construction scheme;  

 2. Install, debug and examine the equipment;  

 3. Train technical personnel the first-line operators;

 4. Provide technical exchanging

 5. Offer spare parts at a best price for long term.

Why choose us?                                                                               

1. Novelty: It is featured by small volume, light weight, simple structure and process which make the machine easy to change the partsand convenient to move, turning the tertiary crushing to the secondary crushing. Additionally, it overcomes the weakness of traditional sandstone-making equipments which is only applicable for the soft rock(under 150MPa).

2. Unique: The third generation of new type high efficient and energy-saving sandstone-making machine has the special structure, counterattacking liner, high-chromium board hammer, which can adjust the particle size and simplify the procedure.
3. High-efficiency: The production rate of new type sand-making machine is about 40-60% higher than the traditional impact sandstone machine.
4. Power saving: The new type machine can save  50-70% power than that of  traditional sandstone machine.
5. High quality: The finished sandstone with cubic shape owns high compressive strength which is applied to high-standard architecture. And product size of over 85% sandstones is less than 5mm.
6. Money-saving: The new type machine can save money 50-60% than that of traditional ones.
7. Maintenance: The maintenance ratio of new type machine is 50-60% lower than that of traditional ones.
8. Fittings: The  fittings of new type machine is 50-60% less than that of traditional ones.