D-3000 Powder Feeder

The D-3000 powder feeder is a high-precision powder feeding mechanism with metering disc output, and at the same time, the touch screen and mass flow control system are used to regulate and stabilize the carrier gas flow, which is suitable for the accurate conveying of powder in thermal spraying and laser melting equipment. It has higher accuracy than scraper, screw, vibrating powder feeder and other conveying.

The internal structure of the powder feeder is provided with a unique purging self-cleaning structure, which can effectively self-clean and prevent fine powder from being mixed in the parts of the equipment, which has a very significant effect on the blockage of fine powder powder, and the coarse powder is not easy to block, and the powder feeder is maintenance-free and worry-free.

Using a small flow of nitrogen or argon as the powder feeding gas, the powder reaches the powder outlet with the rotation of the bottom powder feeding tray, and enters the spray gun together with the powder feeding gas, saving more gas than the traditional medium and high pressure powder feeder.

The mass flow control system with full closed-loop control automatically adjusts the carrier gas flow, which has higher accuracy and stability than the traditional float flow meter.

The metering disc feeder feeds finer powder and has a wider range of powder particle sizes than traditional double-barrel feeders.

At the same time, the powder feeder has the same appearance and structural principle as the American Praxair 1264 powder feeder, which can make the mouth of the powder barrel turn downwards and complete the powder pouring and cleaning work in three seconds, which has been widely used in thermal spraying devices and has become one of the indispensable and important devices in the thermal spraying industry.

The D-3000 powder feeder is mainly composed of a powder feeder body, a stand, and a mobile trolley. The main structure is composed of tank, box, electrical control, rotary drive, etc., and the tank is composed of metering plate, vibrating hammer, powder feeding valve, carrier gas assembly, cylinder head and other components.

Picture: The internal structure of the D-3000 metering disc powder feeder

Under the action of the agitator, the powder fills the hole of the metering plate, and is driven by the counterclockwise rotation of the continuously variable speed motor, and rotates with the high-precision metering plate to the blanking port. Under the pressure of the carrier gas in the tank and the negative pressure generated by the powder feeding valve, the carrier gas is successively fed into the spray gun system to complete the thermal spraying process. The spray volume is controlled by a stepless motor with a speed regulation of 1-18 rpm. Accurate powder feed greatly improves the uniformity of the coating and the quality of the spray.

Image: D-3000 powder feeder

Features and technical parameters of D-3000 powder feeder

• The powder feeder is a high-precision powder feeding mechanism with metering disc output, and the powder output is uniform, and it has higher accuracy than scraper, screw and vibrating conveying.

• Using small flow of nitrogen or argon as the powder feeding gas, the powder reaches the powder outlet with the rotation of the bottom powder feeding tray, and enters the spray gun together with the powder feeding gas, which saves more gas than the traditional medium and high pressure powder feeder.

• The metering disc feeder feeds finer powder than the traditional double-barrel powder feeder, and has a wider range of powder particle sizes.

• Adopt the latest inclined structure in the world, which is convenient for cleaning the powder, and it only takes 3 seconds to turn over the barrel body and pour out the powder.

1. Aerospace: Used for thermal spraying of aircraft engine parts, landing gear, etc., to improve their performance and ensure flight safety.

2. Automobile manufacturing: Thermal spraying of automobile engine blocks, pistons and other parts to improve engine efficiency and parts reliability.

3. Machining: It is suitable for surface strengthening of mechanical parts such as shafts, gears, molds, etc., to improve the quality of parts and the life of molds.

4. Electric energy: Boiler pipes, steam turbine blades, and wind turbine blades and towers used in thermal power equipment to extend the service life of equipment and reduce maintenance costs.

Product Operate Guide     

1. Installation and placement: Place the powder feeder in a suitable working position smoothly, connect the bracket and the mobile trolley, and ensure that the equipment is stable. If it needs to be moved, it can be flexibly operated by means of a trolley.

2. Electrical connection: Connect 220VAC±10%, 50Hz AC power, be sure to ensure good grounding to prevent electric shock accidents. When loading and unloading the power cord, the power must be cut off first.

3. Powder preparation: Select the appropriate thermal spraying powder, check the quality of the powder, and ensure that there are no problems such as moisture and agglomeration. Open the powder storage barrel and pour the powder in, pay attention to the heating function of the powder storage barrel to prevent the powder from getting wet, and turn on the heating as needed before use.

4. Gas circuit connection: Connect the carrier gas source to ensure that the gas pressure is stable at about 0.2Mpa. Check whether the trachea connection is firm to prevent air leakage. After the powder feeder is used, the residual gas in the pipeline needs to be discharged, the main valve of the gas cylinder should be closed, and the pressure reducing valve should be released.

Q1: How do I maintain my D-3000 powder feeder in daily use?

A: It is necessary to regularly clean the dust on the surface of the powder feeder to keep it clean and tidy to avoid foreign matter from entering. After replacing the powder or finishing the operation, purge the residual powder in the tank with compressed air in time. Regularly check whether the metering plate, vibratory hammer, powder feeding valve, carrier gas assembly and other components are worn or damaged, and replace them in time if there is a problem. Check the operation of the motor and carry out maintenance if necessary, such as adding lubricating oil. At the same time, check whether the trachea is aging or ruptured, whether the joint is loose, and clean the air filter regularly.

Q2: What should I do if the powder feeding volume is unstable when the powder feeder is working?

A: If the powder feeding volume is abnormal during the operation, the speed of the motor can be adjusted steplessly in the range of 0 to 18 rpm on the operation panel of the powder feeder, and the powder feeding volume can be adjusted from 0 to 220g/min to ensure the stability of powder feeding. If it is still unstable after adjustment, it is necessary to check whether the parts of the powder feeding mechanism are worn or blocked, or check whether the air pressure is normal.

Q3: What operations do I need to perform after the powder feeder is used?

A: After use, the residual gas in the pipeline needs to be discharged, the main valve of the gas cylinder should be closed, and the pressure reducing valve should be released. Clean the surface and interior of the device from any remaining powder and prepare it for the next use.