It is not only suitable for logs, but also can convey materials with sharp edges and those that are highly abrasive to the conveyor or items in pieces, and can handle large chunks of conveyed materials (with a large particle size), as well as materials with a temperature below 400°C.
It has the advantages of flexible layout, high strength of the traction chain, long-distance conveying capability, large pan bending strength, resistance to impact, stable and reliable operation, and low noise.
It can withstand deep silo pressure, can be started at full load with frequency conversion speed regulation, can be installed horizontally or inclinedly, with the maximum inclination angle reaching 25 degrees. It is widely used in industries such as building materials (cement), mining, metallurgy, ports, coal, and chemicals.
Heavy-duty Apron Feeder Structure & Working Principle
The EXCT heavy-duty apron feeder is a device that uses a high-strength bulldozer track chain as the traction component (it can be selected from Caterpillar, Komatsu, or Shantui), and with the material being carried on the pan to achieve continuous conveying.
It is mainly composed of a drive device, main shaft device (sprocket), conveying pan, frame, supporting wheels (roller), tail tension device, etc.
The wood raw materials fall from the tail bin onto the conveying pan, and move in a straight line along with the chain's operation, and then are continuously and uniformly transported to the front crusher or downstream equipment.
Heavy-duty Apron Feeder Details
Drive Device
Drive device utilizes an AC variable frequency drive system that integrates software with electronic and mechanical systems to provide precise conveyor speed control and overload protection.
The main components of the drive device can choose Siemens, ABB, Sew, Flender and other well-known domestic and foreign brands of motor and gearbox, to provide stable and continuous kinetic energy output, with high efficiency, low noise, low vibration and other characteristics.
Sprocket
Cast manganese segmental sprockets bolted to heavy steel hubs keyed to oversized front drive shaft.
The segmental sprockets can be replaced in a very short time without needing to dismantle or remove other parts of the feeder.
Pans
The pans bolted to the chain with high strength bolts and nuts, which can be replaced individually in situ without disturbing the rest of the apron feeder.
According to different working conditions, heavy-duty apron feeder can choose heavy duty cast manganese steel or welded construction with ribbed reinforcements, which is suited for materials with high load and high impact conditions.
Rollers
The rollers are designed as a standard tractor rollers with sealed and lifetime lubricated bearings, mounted on the main feeder frame. The rollers has suitably spaced to provide adequate support for the chain assembly.
The rollers can use world famous brands according to customer needs, such as Caterpillar, Komatsu, and Shantui.
Chains
The chain uses an off the shelf dozers chain (Track chain), which is characterized by small pitch error, smooth movement, high strength, large pulling force, and the chain has a self-lubricating device and a sealing device. The shaft is made of hardened steel, which improves the toughness and impact resistance of the traction chain, has good wear resistance and has a long service life.
Tail Tension Device
The tension device is used to tighten and adjust the horizontal position of the chain to ensure that the chain tightness is moderate and make it run smoothly. When the pans are suddenly impacted by the material, the composite spring can play a buffer role to protect the pans and other components from damage.
Why Can the Heavy Duty Apron Feeder Convey Logs?
01/ Resistant To Impact Loads From Logs
Our heavy duty apron feeder uses bulldozer-grade tracks for traction and a chain with a self-lubricating sealed structure. It has high impact resistance and breaking strength; it is combined with multiple sets of maintenance-free supporting wheels to distribute the impact load and can withstand the instantaneous impact caused by logs rolling out of the storage bin. The maximum feed particle size can reach 1500mm, which can be adapted to large-diameter logs. Compared with belt conveyors, it will not experience tearing or collapse due to heavy object impact.
02/ Reduce Log Slippage
Our pan adopts a single circular arc jointed low alloy steel plate assembly structure. The whole is a metal hard bearing surface, without the defect of rubber belts being easily punctured by branches or thorns. The pan interlocks to form a continuous plate surface. When round logs are placed on it, it is less likely to slide on the spot; additional side guards can be installed on site to further limit the lateral rolling of logs and ensure that the material moves synchronously with the pan.
03/ Controllable Speed Adjustment
Our equipment is equipped with explosion-proof variable frequency motors + large-speed ratio planetary reducers. The operating speed range is 0.026 - 0.26m/s, which belongs to low-speed high-torque output and supports stepless speed adjustment. You can adjust the conveying speed according to the feeding capacity of the chipper and crusher to control the feeding rhythm of logs and avoid blockage at the end due to multiple logs entering at once; the soft start design can also reduce the starting impact load caused by log drop.
04/ No Deformation Under Uneven Load
Our frame adopts a steel plate welded I-shaped overall structure. After welding, it undergoes stress relief treatment, and the overall rigidity is high; the working section is equipped with multiple sets of spaced-supported wheels to distribute the concentrated weight of a single log and suppress the pan's deflection deformation. Even if a large-weight log with uneven load falls on a part of the pan, the frame and supporting wheels combination can still stably bear it and will not experience frame distortion or deformation faults.
05/ Stable Conveying Of Damp Logs
Our equipment allows the working environment temperature to be 30℃ - +50℃, which can adapt to rainy, snowy, and outdoor damp conditions. The metal pan and chain are not affected by the mud water and sap on the surface of the logs and will not experience a significant reduction in frictional force due to moisture absorption of the belt and slipping; the equipment supports continuous operation mode and can handle logs with mud water and damp harvested logs all day long, and is not prone to corrosion and failure.
05/ Compatible With Large Inclination Angles
The maximum upward installation inclination angle is 25°. This inclination angle fully meets the requirements for log feeding lifting. When conveying logs at this inclination angle, the material is less likely to roll downward. The tail spiral tensioning device can be adjusted bidirectionally to regulate the tension of the two traction chains, combined with a composite spring buffer, to absorb the chain load fluctuations caused by log impact, effectively avoiding chain jumping and falling, and ensuring the stability and reliability of chain engagement during the log conveying process.
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Heavy-duty Apron Feeder Brochure Download
Heavy-duty Apron Feeder VS Traditional Belt Conveyor VS Vibrating Feeder
|
VS |
Heavy Duty Apron Feeder |
Traditional Belt Conveyor |
Vibrating Feeder |
|
Applicable particle size of materials |
Large and heavy load, the maximum diameter of the material block can reach 1.5 meters. |
Relatively small, optimal fit ≤ 300mm |
Blocky and granular materials with limited particle size |
|
Impact resistance |
The strongest, with an anti-shock capability exceeding that of any other feeder. |
Weaker, the belt is prone to damage. |
Generally, it is not suitable for direct impact on large pieces of material. |
|
Resistant to wear and tear / Resistant to high temperature and high humidity |
Pan is made of alloy steel, which is resistant to impact, high temperature and wear. |
The belt is prone to damage. |
Generally |
|
Uniformity of material supply |
Continuous and uniform, with a stable material layer |
The conveying distance is long and the speed is fast, but the control of the material supply is poor. |
The feeding is uneven and is susceptible to the influence of moisture content. |
|
For moisture content / wet adhesive materials |
High adaptability, not easily affected by the moisture content of the materials, can avoid adhesion and blockage; especially suitable for materials with high humidity and high viscosity. |
Suitable for wet materials but mainly for small pieces of materials |
Sensitive to moisture content and prone to adhesion |
Heavy-duty Apron Feeder Application Materials
- Mining
- Coke
- Copper Ore
- Overburden
- Potash
- Aggregate
- Clay
- Iron Ore
- Sand
- Gangue
- Cement
- Clinker
- Gold Ore
- Gravel
- Uranium Ore
- Coal
- Gypsum
- Silver Ore
- Nickel
- Oil Shale
- Lignite
- Limestone
- Bauxite
- Kimberlite
- Quartzite
Manufacturing Facilities
A high quality mechanical products, must have excellent tooling equipment. In order to ensure its accuracy and meet the needs of large orders. Henan Excellent Machinery Co.,Ltd owns 140 sets of professional equipment, including Five-axis Gantry Machining-center, CNC Boring And Milling Machining Center, Vertical Machining Center, Vertical CNC Machining Center, Gantry Machining Center, Laser Cutting Machine, Laser Pipe Cutting Machine, Welding Robot Workstation, Lengthen Lathe, CNC Horizontal Machining Center, etc. Advanced processing and manufacturing equipment including Environmental Spraying Room and Heat Trea equipment and ultra large Surface Heat Treatment.
Strict Quality Control
At present, EXCT has fully passed ISO9001-2008 international quality system certification, complete quality system make sure that from the product development and design, production, procurement and supply to sales and service process has been effective quality controlled.
EXCT has a rigorous and skilled inspection team to ensure the success of product quality control. The quality inspection department has a strict testing process that runs through the stages of raw material procurement, production, and installation to ensure that every piece of equipment delivered to customers is qualified.
Heavy-duty Apron Feeder Cases
FAQ
When transporting logs or wood chips, the materials are prone to getting stuck. What should be done?
The feeding speed should be adjusted reasonably based on the characteristics of the materials (humidity, particle size, whether they are with bark); ensure that the size and position of the discharge port are designed properly; side baffles and vibration devices can be installed to promote the uniform flow of materials and prevent accumulation and falling. When a blockage or jamming occurs, the machine should be stopped for handling.
What to do when the chain or pan wears out too quickly or the chain runs off center?
The chain running off center is mostly caused by the offset of the tail wheel shaft and the inconsistency of the tension of the two sides of the chain; excessive wear is mostly due to insufficient lubrication or overload. Regularly check the tension, adjust uniformly, and promptly clean and lubricate the bearings. Chains and pans with excessive wear should be replaced in time.
The equipment fails to start, the feeding speed is slow or the feeding volume is insufficient?
This is mostly caused by electrical or hydraulic system failures, such as damaged motors, damaged control circuit components, insufficient voltage, hydraulic system failures, etc. Professional personnel should inspect the motor, control system and hydraulic system, and promptly repair and replace.
Abnormal noise or vibration occurs during operation?
Stop the machine immediately for inspection. Usually, it involves poor meshing between the chain and the sprocket, damaged rollers, failed bearings, loose anchor bolts or drive device failures.
General Technical Specifications
Heavy-duty apron feeder are customized for each application material to provide the best configuration and meet all your requirements. For more configurations please contact our technical engineers.
|
Model |
Pan width |
Speed |
Max Feeding Size |
Rail |
Capacity |
Length(m) |
|
BL800 |
800 |
0.01～0.25 |
350 |
/ |
50～350 |
2～15 |
|
BL1000 |
1000 |
0.01～0.25 |
470 |
1 |
100～510 |
3～20 |
|
BL1200 |
1200 |
0.01～0.2 |
650 |
1 |
120～595 |
3～20 |
|
BL1400 |
1400 |
0.01～0.2 |
680 |
2 |
140～850 |
6～20 |
|
BL1600 |
1600 |
0.01～0.2 |
700 |
2 |
320～1300 |
6～20 |
|
BL1800 |
1800 |
0.01～0.15 |
800 |
2 |
500～1560 |
8～20 |
|
BL2000 |
2000 |
0.01～0.15 |
1000 |
3 |
500～1850 |
8～20 |
|
BL2400 |
2400 |
0.01～0.15 |
1500 |
3 |
500～2700 |
8～20 |
|
BL2800 |
2800 |
0.01～0.15 |
1800 |
4 |
1000～4000 |
10～20 |
Selection Instruction
1.Which material to be handling:______
2.Handling capacity: ______t/h
3.Material density: ______t/m³
4.Center distance between the head sprocket and tail sprocket :______m
5.Is the layout of the heavy-duty apron feeder inclined or horizontal ? If it is inclined,what is the inclined degree______°
6.Max. granule size of the feeding material: ______mm
7.Max. Granule's percentage in whole material:______ %
8.What equipment is used to feed the material into the apron feeder:______
9.What equipment is used to discharge the material from the apron feeder:______
10.Working power supply: ______V ______HZ
11.Required quantity: ______
12. Under normal circumstances, the upstream equipment of the heavy-duty apron feeder is the hopper. In order to facilitate our engineers to calculate the power of the apron feeder, can you provide the preliminary design scheme or hand-drawn drawings of the hopper?
Heavy-duty Apron Feeder Spare Parts
Sprocket Tooth Ring
Chain
Supporting Roller
Return Rollers
Bearings
Pans
Hot Tags: heavy duty apron feeder for log yard raw wood handling, China heavy duty apron feeder for log yard raw wood handling suppliers, manufacturers
