Руководство по горному оборудованию: What Equipment Should You Use for Metering Ore Powder, Coal and Cement Clinker? A Complete Guide to Disk Feeders

The disc feeder is a volumetric feeding device that can feed materials evenly and continuously to the next process. It is suitable for feeding various non-sticky materials but not suitable for powder materials with good flow properties. Materials fed by the disc feeder include ore powder, coal powder, cement clinker, limestone powder, and other powdery, granular, or small block materials. The device operates by a motor driving the rotation of the disc, with materials falling from the hopper through a sleeve onto the rotating disc. As the disc rotates, the scraper pushes the materials to the discharge port for output. By adjusting the position of the scraper or the height of the sleeve, the feeding volume can be changed to achieve volumetric feeding. Why choose a disc feeder? First, it has a simple structure, smooth operation, easy maintenance, and low operating costs. Second, with volumetric measurement, the feeding volume can be flexibly controlled by adjusting the scraper position or sleeve height, meeting different process batching requirements. Third, it is suitable for a wide range of materials and can handle ore powder, coal powder, cement clinker, limestone powder, and other powdery, granular, or small block non-sticky materials. Fourth, it has good sealing (optional closed type), reducing dust leakage and meeting environmental protection requirements. Fifth, it operates reliably, suitable for long-term continuous operation, and is an ideal device for automated batching systems in the mining, building materials, and chemical industries. Disc feeders are mainly used for ore feeding in the mining industry, cement clinker and limestone feeding in the building materials industry, coal powder feeding in the coal industry, feeding non-sticky powdered raw materials in the chemical industry, and various industrial scenarios where materials need to be fed evenly and continuously from the hopper to the next process (such as crushers, ball mills, screens, packaging machines, etc.). Users who need disc feeders include equipment procurement and maintenance departments of mining enterprises, cement plants, building material factories, chemical plants, and coal mining enterprises, as well as EPC contractors for bulk material processing production lines, equipment distributors, inventory suppliers, and overseas industrial project buyers. When should you choose or replace a disc feeder? When it is necessary to feed non-sticky materials evenly and continuously from the hopper; when volumetric measurement and automated feeding are required; when the old feeder feeds unevenly, has inaccurate measurement, or a high failure rate; when a new production line requires a simple-structured and reliable feeding device; when an export project requires compatibility with overseas voltage and feeding conditions, the disc feeder should be given priority. How to choose a disc feeder? Step 1: Confirm the material properties. Disc feeders are suitable for non-sticky materials and not suitable for powdered materials with good flowability. Step 2: Confirm the disc diameter. Choose 600-2000 mm according to the processing capacity and material particle size. Step 3: Confirm the feeding capacity. Select the model corresponding to the production line capacity requirement within the range of 0.69-42 t/h. Step 4: Confirm the disc speed. Choose 8-10 r/min according to the material characteristics. Step 5: Confirm the material particle size. Choose the corresponding model for particle sizes of 25-80 mm. Step 6: Confirm the motor power. Select 1.1-7.5 kW according to processing capacity and disc specifications. Step 7: Confirm the installation foundation. Must be installed on a solid concrete foundation and fixed with anchor bolts. Step 8: Confirm environmental and automation configuration. Can be equipped with a closed cover, dust removal interface, and a variable frequency speed controller.

Disc Feeder Model and Parameter Table

Model	Type	Disc Diameter (mm)	Feeding Capacity (t/h)	Disc Speed (r/min)	Material Particle Size (mm)	Matching Motor Model	Motor Power (kW)
DK 600	Open Type	600	0.69-3.9	8	25	Y90L-6	1.1
DK 800	Open Type	800	2.4-12	10	40	Y90L-4	1.5
DK 1000	Open Type	1000	4.2-22	10	50	Y100L-4	2.2
DK 1250	Open Type	1250	8-42	8	50	Y112M-4	4
DK 1500	Open Type	1500	8-42	8	80	Y112M-4	4
DK 2000	Open Type	2000	[Please Check]	8	80	Y132M-4	7.5

General Technical Parameter Table

Parameter	Specification
Series	DK
Type	Disc Feeder (Volumetric Feeding Equipment)
Structural Form	Open Type (Customizable Closed Type)
Disc Diameter	600–2000 mm
Feeding Capacity	0.69–42 t/h
Disc Speed	8–10 r/min
Material Particle Size	25–80 mm
Motor Power	1.1–7.5 kW
Core Advantages	Simple structure, stable operation, easy maintenance, volumetric measurement, adjustable feeding amount, suitable for non-sticky materials
Applicable Materials	Ore powder, coal, cement clinker, limestone powder, soil, and other powdered, granular, or small block non-sticky materials
Non-Applicable Materials	Powdered materials with good flow properties

Dimension Drawing and Key Dimensions

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Material Table

Component	Standard Material	Optional Material	Description
Disc	Carbon Steel	Wear-resistant Steel Plate, Stainless Steel	Core rotating component, carries materials, must be wear-resistant
Sleeve	Carbon Steel	Wear-resistant Steel Plate, Stainless Steel	Adjusts feeding amount, prevents material overflow
Scraper	High Manganese Steel	Wear-resistant Alloy	Key wear part, scrapes material to the discharge port
Frame	Carbon Steel	Stainless Steel	Supports the weight of the equipment and operational load
Drive Shaft	40Cr/45# Steel	Alloy Steel	Quenched and tempered, ensures smooth transmission
Reducer	Hardened Tooth Surface Reducer	Cycloidal Pin Wheel Reducer	High transmission efficiency
Motor	Full Copper Coil Motor	Explosion-proof Motor, Variable Frequency Motor	Standard Three-phase Asynchronous Motor
Control Box	Carbon Steel/Stainless Steel	Rainproof and Dustproof Type	Optional Variable Frequency Speed Control

Installation Method

Disc feeders need to be installed on a solid concrete foundation. The foundation must bear the equipment's own weight and dynamic load during operation; during installation, ensure the foundation level meets requirements and anchor bolts are tightened according to torque specifications; after the equipment is in place, adjust the level to ensure the disc is perpendicular to the drive shaft and the clearance between the scraper and disc is uniform; the hopper interface and sleeve need to be well sealed to prevent material leakage; the outlet should be smoothly connected to the receiving equipment to ensure material discharge is unobstructed; after installation, a no-load trial run should be conducted to check whether the disc rotates smoothly and for any abnormal vibration or noise; during the load trial run, gradually increase the feed amount, observe the feeding effect and motor current to ensure it does not exceed the rated current; the feed amount can be controlled by adjusting the scraper position or sleeve height; a sealed cover and dust removal system should be equipped to reduce dust pollution; a central control system can be equipped for online monitoring and automatic control.

Application Scenario Table

Industry	Application	Recommended Configuration	Key Requirements
Mining Industry	Ore feeding, pulverized coal feeding	DK800–DK2000	Volumetric measurement, stable operation, wear-resistant
Building Materials Industry	Cement clinker, limestone powder feeding	DK600–DK1500	Uniform feeding, accurate measurement, good sealing
Chemical Industry	Feeding of non-sticky powdery raw materials	DK600–DK1000, stainless steel	Corrosion-resistant, anti-pollution, accurate measurement
Coal Industry	Pulverized coal feeding, automatic batching	DK800–DK1500, explosion-proof	Explosion-proof, good sealing, uniform feeding
Power Industry	Coal feeding, automatic batching	DK1000–DK2000	Large processing capacity, reliable operation, automated
Metallurgical Industry	Sintered ore, pellet ore feeding	DK1000–DK2000	High temperature resistance, heavy load, accurate measurement

Note

The disc feeder is suitable for feeding various non-sticky materials and is not suitable for powdery materials with good flow properties. Materials to be fed include ore powder, coal, cement clinker, limestone powder soil, and other powdered, granular, or small block materials. Disc diameters range from 600-2000mm, feeding capacity 0.69-42t/h, motor power 1.1-7.5kW. In explosive environments, an explosion-proof motor must be selected. For highly abrasive materials, it is recommended to choose a wear-resistant steel disc and high manganese steel scraper.

## Technical FAQ

1. What is a disc feeder?

A disc feeder is a volumetric metering feeding device that can evenly and continuously feed materials to the next process, suitable for feeding various non-sticky materials.

2. What is the working principle of a disc feeder?

The disc feeder works by the motor driving the disc to rotate. Materials fall onto the rotating disc from the hopper through a sleeve and are scraped to the discharge port by scrapers. By adjusting the position of the scraper or the height of the sleeve, the feeding volume can be changed to achieve volumetric metering feeding.

3. What models of disc feeders are available?

Disc feeder models include DK600, DK800, DK1000, DK1250, DK1500, DK2000.

4. What are the disc diameter and feeding capacity of the disc feeder?

The disc diameter ranges from 600-2000mm, feeding capacity 0.69-42t/h, varying according to the model.

5. What are the disc rotation speed and material size for the disc feeder?

Disc rotation speed is 8-10r/min, material size 25-80mm, varying according to the model.

6. What is the motor power of the disc feeder?

Motor power is 1.1-7.5kW, varying according to the model. DK600 is 1.1kW, DK2000 is 7.5kW.

7. What materials are suitable for the disc feeder?

Suitable for feeding various non-sticky materials, such as ore powder, coal, cement clinker, limestone powder soil, and other powdered, granular, or small block materials.

8. What materials are not suitable for disc feeders?

Not suitable for powders with good flowability.

9. What are the wear parts of a disc feeder?

Scrapers, discs, sleeves, bearings, etc., among which the scraper is the core wear part. It is recommended to use high manganese steel or wear-resistant alloy.

10. What are the common faults of a disc feeder?

Uneven feeding (scraper wear or unstable disc speed), severe leakage (poor sleeve sealing or disc wear), abnormal vibration (disc imbalance or loose foundation bolts), motor overheating (overload or unstable voltage), decreased feeding quantity (scraper wear or hopper blockage).

11. Does a disc feeder require a foundation?

Yes. It needs to be installed on a solid concrete foundation, which should support the equipment's own weight and dynamic load during operation, and be fixed with foundation bolts.

12. Can a disc feeder be customized?

Yes, disc diameter, feeding capacity, disc material (wear-resistant steel/stainless steel), open or closed type, motor configuration (explosion-proof motor/frequency-conversion motor), dust removal interface, central control system, etc., can be customized.

13. What is the difference between a disc feeder and an electromagnetic vibratory feeder?

A disc feeder achieves volumetric metering feeding through rotating discs and scrapers, suitable for non-sticky powdery and granular materials; an electromagnetic vibratory feeder uses an electromagnetic vibrator to generate exciting force, and the feeding amount can be adjusted steplessly, suitable for automated feeding of granular and powdery materials.

14. What is the difference between a disc feeder and a chain plate feeder?

A disc feeder is used for volumetric metering feeding, suitable for non-sticky powdery and granular materials; a chain plate feeder has strong traction and is suitable for continuous conveying of large, heavy, and high-temperature materials.

15. How to adjust the feeding amount of a disc feeder?

It can be controlled by adjusting the scraper position or sleeve height, and can be equipped with a frequency converter to achieve stepless feeding adjustment, meeting automated feeding requirements.

16. How to maintain a disc feeder?

Regularly check the wear of the scraper and disc, and replace or adjust in time; regularly check the sleeve and sealing condition; regularly check the bearing lubrication and add or replace grease; regularly check whether the foundation bolts and connecting bolts are loose; regularly clean the material accumulation and foreign objects in the disc and discharge port; regularly check the operating status of the motor and reducer.

17. Does the disc feeder comply with RoHS and REACH?

Standard equipment complies with RoHS and REACH regulations and does not contain SVHC substances of high concern. Specifics are based on product test reports.

18. How to select the model of a disc feeder?

Determine suitability based on material properties (non-sticky materials), choose the corresponding model within the 0.69-42t/h range according to the production line capacity requirement, select a disc diameter of 600-2000mm based on the processing volume and material particle size, choose a disc speed of 8-10 r/min according to material characteristics, and select a motor power of 1.1-7.5 kW based on processing capacity and disc specifications.

19. How to use a disc feeder in conjunction with a chain plate feeder and an electromagnetic vibration feeder?

The chain plate feeder is responsible for continuous feeding of large material blocks, the electromagnetic vibration feeder is responsible for precise feeding of medium and small particles and powder materials, and the disc feeder is responsible for volumetric feeding of non-sticky powder and granular materials. The three can form a complete bulk material handling production line, achieving the full process from coarse feeding to precise batching.

20. Why is the feeding capacity of a disc feeder related to the disc speed?

A disc feeder uses volumetric feeding, and the feeding capacity is related to the disc speed, sleeve height, and scraper position. The faster the disc speed, the more material falls from the sleeve per unit time, and the greater the feeding capacity; conversely, the slower the speed, the lower the feeding capacity.

Technical FAQ

What information is needed for a feeder or conveyor?

Send capacity, material density, lump size, conveyor length, inclination, start-stop frequency and required control mode.

Why is starting torque important?

A loaded conveyor or feeder may need much higher starting torque than its running load. Check the motor, gearbox and starting method together.

Authoritative references

For standards and safety context, see ISO standards and the U.S. Mine Safety and Health Administration. Confirm the exact local requirements for your project.

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