• Chain grate machine Manufacturers, Chain grate machine Factory, Supply Chain grate machine
  • Chain grate machine Manufacturers, Chain grate machine Factory, Supply Chain grate machine

Chain grate machine

Brand SINOMALY

Product origin Liyang, Jiangsu, China

Delivery time 7 months

Supply capacity 10-800tph

1. With the rapid development of the iron and steel industry, the continuous increase in the supply of finely ground iron concentrates and the superior metallurgical performance of the pellets have made the proportion of pellets in the ironmaking production with blast furnaces continue to increase, therefore, the traveling grate – rotary kiln system for producing the pellets has been widely used.
2. As a large-scale non-standard thermal mechanical equipment, the traveling grate involves many fields such as thermal engineering, fluid mechanics, and materials science.
3. The working temperature of the traveling grate machine can reach above 1100℃, so the machine is equipped with a large proportion of heat-resistant parts which take an extremely important position in the whole equipment.

Chain grate machine

Introduction of Chain Grate Machines:

The Chain grate machine is a large non-standard equipment used in the traveling grate machine -rotary kiln process to burn pellets, and it is the core equipment of the three main machines on the process line. The Chain grate machine is mainly operated in parallel with non-standard chains under high temperature conditions, and the entire grate bed is drawn in a circular operation, so that the carried material enters from the tail and discharges from the head.

The Chain grate machine is mainly composed of the transmission device, traction head wheel, carrying device, tail redirection unit, sealing device, grate bed assembly, bellows unit, frame, cover body and other components.

The transmission device and the traction head wheel provide the power source for the entire equipment, bringing the traction grate bed to make a circular motion;

The carrying device supports the entire chain grate bed to carry and transfer materials;

The sealing device ensures that materials are transported in the entire sealed furnace and reduces heat loss;

The grate bed is the main carrier to transfer the materials;

The bellows unit is mainly used for ventilation or blasting;

The frame and cover, etc. are the accessory parts to ensure the entire equipment


Working principle of Chain Grate Machine:

When the Chain grate machine is working, the motor drives the traction head wheel to rotate through the reducer, so that the traction head wheel drives the grate bed to move in parallel through the engagement of the assembled sprocket and chain links, and the material is continuously carried forward by the grate bed. The green balls prepared by the pelletizing mechanism are screened by the sieve distribution machine, and the qualified  green balls (φ8~16mm) are evenly distributed on the cloth area at the tail of the grate machine. With the operation of the grate bed, the material balls pass through the blast section, the drying section I, the drying section II and the preheating section, and finally enter the rotary kiln through the shovel plate and the kiln tail chute. The blast section and the drying section I mainly remove the moisture contained in the material balls; the drying section II mainly removes the crystal water of the material balls; the preheating section mainly heats the material balls. The material ball completes the drying and preheating process in the chain grate machine, so that the material ball has a certain compressive strength, and it will not be broken or damaged during the roasting process in the rotary kiln.

The heat source used by this machine mainly comes from the high-temperature airflow at the end of the rotary kiln and the waste heat from the annular cooler and the traveling grate machine.

 

When the Chain grate machine is working, the motor drives the traction head wheel to rotate through the reducer, so that the traction head wheel drives the grate bed to move in parallel through the engagement of the assembled sprocket and chain links, and the material is continuously carried forward by the grate bed. The green balls prepared by the pelletizing mechanism are screened by the sieve distribution machine, and the qualified  green balls (φ8~16mm) are evenly distributed on the cloth area at the tail of the grate machine. With the operation of the grate bed, the material balls pass through the blast section, the drying section I, the drying section II and the preheating section, and finally enter the rotary kiln through the shovel plate and the kiln tail chute. The blast section and the drying section I mainly remove the moisture contained in the material balls; the drying section II mainly removes the crystal water of the material balls; the preheating section mainly heats the material balls. The material ball completes the drying and preheating process in the chain grate machine, so that the material ball has a certain compressive strength, and it will not be broken or damaged during the roasting process in the rotary kiln.

The heat source used by this machine mainly comes from the high-temperature airflow at the end of the rotary kiln and the waste heat from the annular cooler and the Chain grate machine.

Chain grate machine


Technical Parameters of Chain Grate Machine

Specification (m)

Capacity (104t/a)

Power (kW)

Speed Ratio

Type of Reducer

Type pf Ventilation

Process Section

B2.0×30

25

2×15

315

NGW type

Unilateral & left

To be determined according 

to material technology

B2.5×33

40

2×15

315

NGW type

Bilateral & draft

B2.8×36

60

2×18.5

315

NGW type

Bilateral & draft

B3.1×39

80

4×11

1060

Three-ring type

Bilateral & draft

B3.5×39

100

4×11

1060

Three-ring type

Bilateral & draft

B4.0×42

150

4×11

1060

Three-ring type

Bilateral & draft

B4.5×60

240

4×15

730

Three-ring type

Bilateral & draft

B5.0×60

400

4×22

440

Three-ring type

Bilateral & draft

B5.5×69

500

4×22

440

Three-ring type

Bilateral & draft


Features of Chain Grate Machine

1) Flexible transmission technology can make the equipment automatically adapt to the thermal expansion of the main shaft of the traction head wheel.

2) Connected bellows structure, more uniform air draft, and smaller temperature difference in the same process section.

3) The grate bed has an automatic tensioning structure, which automatically tensions the thermal expansion and elongation of the grate bed.

4) The automatic reset device of the grate board forcibly make the grate board to return to its place, to prevent affecting the state of the cloth.

5) The staggered engagement technology can compensate the difference in thermal expansion between the grate bed and the main shaft.

6) The self-adaptive linkage flexible guide rail mechanism can completely avoid the collision and jam of the grate plate and other fixed parts.

7) Unique sealing technology, which can effectively prevent air from flowing into other chambers and reduce consumption of energy.

SINOMALY Heavy Machinery Co., Ltd.

Company Profile

SINOMALY Heavy Machinery Co., Ltd. was founded in 2007. As an outstanding manufacturer and supplier of production facilities, equipment and service solutions to the cement, mining, metallurgical, chemical, coal, environmental protection, power plant and steel plant industries, we have never stopped improving productivity, driving down costs and reducing the environmental impact of operations.

Covering an area of 530mu, the Company is equipped with 80 medium and large equipment with an annual manufacturing capacity of 69,300 tons of products (totally in weight).

The Company is integrated with the study of basic theory, development & design of equipment, manufacturing of mechanical & electrical equipment, technical consultant services, and supply of spare parts.

With the CE certificate, SINOMALY has her products exported to many countries including the USA, Russia, Brazil, Saudi Arabia, Peru, Pakistan, Nigeria and Vietnam, etc., and positive feedback has been received from the customers.


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