Reciprocating Coal Feeder

Overview of the reciprocating coal feeder

The reciprocating coal feeder is suitable for bulk material transfer in mines, coal preparation plants, middle stations, coal conveying workshops, port bulk material terminals, etc., and can evenly transfer bulk materials to belt conveyors or other screening equipment and storage devices through the silo. Achieve uniform feeding of bulk materials such as ore, sand, coal, and grain. The feed chute of this series of coal feeders is made of linear reciprocating motion by the driving device through the crank connecting rod device. When the feed chute moves forward, the material is removed by the action of inertia force and friction force, and the material in the hopper falls at this time so that it cannot retreat and is unloaded at the front end. The transmission device of this series of coal feeders is suspended, which can be directly arranged under the hopper and is easy to install.

The advantages of the reciprocating coal feeder are uniform and stable feeding, adjustable feeding amount, small shape height, simple structure, convenient adjustment and installation, reliable work, and long service life.

Quantity adjustment method of the reciprocating coal feeder feed

The feed rate can be controlled by changing the opening of the fan-shaped adjustment valve to control the thickness of the material layer.

1. The reciprocating coal feeder is fixed and installed under the storage silo. Before installation, it is necessary to determine the horizontal position, fasten the frame and the bin with bolts, and then place the transmission platform in the correct position. The H-shaped frame and the frame are welded firmly, and the reducer and the motor are aligned and installed, adjusted appropriately, and fastened with bolts.

2. After the coal feeder is installed in place, the no-load start motor is used to make the coal feeder run no-load. If everything is normal, check and tighten the bolts and nuts again, restart, and slowly open the coal bunker so that the coal flow enters the coal feeder from small to large, so that the coal feeder can be put into normal operation.

3. When adjusting the productivity according to the unloading requirements, pull out the crank part of the boat, loosen the nut, rotate the position of the crank shell "1, 2, 3, 4" to select and fix, insert the pin, connect the crank and the crank shell, fasten the pin and nut, and then start after adjustment.

Maintenance and repair of the Reciprocating coal feeder

1. Before the operation of the coal feeder, there should be enough raw coal stored in the coal bunker to avoid direct impact on the bottom plate when the coal is loaded into the silo.

2. After continuous work every month, the machine should be checked for any abnormal phenomena, such as loosening, and if there are abnormal phenomena, they should be overhauled immediately.

3. The thickness of the bottom lining plate in direct contact with the coal feeder is greater than half of the original thickness and must be repaired or replaced.

4. All rotating parts are required to be oiled once a month, inspected once a quarter, the damage degree of bearings and seals observed, and replaced in time if problems are found.

Maintenance of main components

(1) Reducer

Inspect every six months, and at the same time, clean or change the lubricating oil for the rolling bearings and housing.

(2) Electric motor

According to the maintenance requirements specified by the motor.

User note: lubricate the moving parts regularly, check the operation of each component, find out the cause and deal with it in time, and notify the manufacturer if necessary. The gate should be closed when the empty warehouse is overhauled.

Troubleshooting of the reciprocating coal feeder

Symptom: Abnormal sound

Cause analysis: The connectors are loose

Troubleshooting: Check and secure the connectors

Fault phenomenon: Heating of the moving parts

Cause analysis: Lack of lubricating oil or damage to the bearing

Exclusion method: Timely oil injection or replacement of bearings

Fault phenomenon: The roller is stuck and cannot move

Cause Analysis: Bearing damage

Exclusion method: Replace the spare roller assembly or disassemble the assembly to replace the bearing

Ordering instructions of the reciprocating coal feeder

1. There are various types of coal feeders with and without funnels, with adjusting gates, and without adjusting gate, such as those with funnels and without adjusting gate. The user should indicate this when placing an order.

2. The power supply voltage of this series of coal feeders has two systems: 380V and 660V. Please determine the voltage system and whether there are explosion-proof requirements when selecting.

3. The equipment installation method has two situations: floor type and hanging type, and there are two structural forms: ordinary type and anti-channeling warehouse type. The equipment foundation bolts and hanging foundation are generally provided by the user.

4. Due to the different actual conditions on site, it is recommended that when you select and order equipment models and specifications, you describe your requirements in as much detail as possible and fully communicate with relevant professional and technical personnel to reduce unnecessary trouble.

The main structure and working principle of the reciprocating coal feeder

This series of coal feeders is composed of a chassis, a transmission platform, a funnel, a gate, a crank connecting rod mechanism, a roller, etc., as detailed in the schematic diagram of the structure. Its transmission principle is that when the motor starts, the inclined chassis is dragged by the elastic coupling, reducer, and crank connecting rod device to make a linear reciprocating motion on the roller, and the material is evenly unloaded onto the transportation machinery or other screening equipment. This coal feeder has a variety of combination types, such as with a funnel, with a regulating valve, with a funnel, without an adjusting gate. When conveying hard materials, consider adding a liner to the bottom of the tank

Working principle of the reciprocating coal feeder

The reciprocating coal feeder is mainly composed of a silo hopper, a box, a gate, a bottom plate, an idler, a driving device, etc. The roller is used to support the bottom plate. The bottom plate is driven by the driving device and makes regular reciprocating linear motion on the roller. The movement of the bottom plate along the direction of coal flow is called forward running, and the movement of the bottom plate against the direction of coal flow is called retrograde. When the bottom plate is in the right direction, the coal bunker and the coal in the coal feeder box are transported to the front end of the box. When the bottom plate is retrograde, the coal in the box is blocked by the inclined plate at the rear of the box, and relative slippage is produced between the bottom plate and the coal. The coal at the front end of the box falls by itself, and continuous and uniform feeding is realized due to the reciprocating motion of the bottom plate, which is the working principle of the reciprocating coal feeder.

Technical parameters of the GLW225/4/S Reciprocating coal feeder

Specifications and models: GLW225/4/S

Power kw: 4

Voltage v: 380~660

Explosion-proof type for environmental adaptation

Maximum feeding capacity t/h: 225

Feeding chassis maximum stroke mm: 200

Crank speed r/min: 57

Weight kg: 1420

Technical parameters of the GLW330/7.5/S reciprocating coal feeder

Specifications and models: GLW330/7.5/S

Power kW: 7.5

Voltage v: 380~660

Explosion-proof type for environmental adaptation

Maximum feeding capacity t/h: 330

Feeding chassis maximum stroke mm: 200

Crank speed r/min: 62

Dimensions mm：3913x1376x1486

Weight kg: 1980

Technical parameters of the GLW590/18.5/S reciprocating coal feeder

Specifications and models: GLW590/18.5/S

Power kW: 18.5

Voltage v: 380~660

Adaptation to the environment: explosion-proof type

Maximum feeding capacity t/h: 590

Feeding chassis maximum stroke mm: 240

Crank speed r/min: 62

Dimensions mm：4740x1632x1543

Weight kg: 2880

Technical parameters of the GLW1200/18.5/S reciprocating coal feeder

Model：GLW1200/18.5/S

Maximum feed volume t/h：1200

Power kW: 18.5

Crank speed r/min: 72

Weight kg: 3500

Technical parameters of the GLW1600/22/S reciprocating coal feeder

Model GLW：1600/22/S

Maximum feed volume t/h：1600

Power kW: 22

Crank speed r/min: 78

Weight kg: 3800

Technical parameters of the GLW2000/37/S Reciprocating coal feeder

Model GLW：2000/37/S

Maximum feed volume t/h：2000

Power kW: 37

Crank speed r/min: 81

Weight kg: 4200