Star-Type Discharger
- Stable operation: The star-type discharger operates with very low noise, running stably and reliably, which can greatly improve work efficiency.
- High wear resistance: Key components such as the blades and shell of the star-type discharger are made of wear-resistant materials, which have extremely high wear resistance and can extend the service life of the equipment.
- Good sealing performance: Adopting a special sealing structure, the star-type discharger has superior sealing performance.
- Multiple material options: Various materials such as stainless steel and carbon steel can be selected according to customer requirements to meet the needs of different working environments.
- Multiple flange port shapes: The flange port can be circular or square, facilitating connection with pipes of different shapes.
Overview
Star-type discharger, also known as rotary feeder, air lock valve, star-type ash discharger, star-type feeder, air shutter, etc., is mainly used at the discharge port working under negative pressure.Star-type discharger is commonly used in pneumatic conveying systems, including pressure conveying systems and negative pressure conveying systems. It conveys materials through a rotating impeller and plays a sealing role to prevent air from being sucked in from the discharge port during pneumatic conveying. This ensures uniform and continuous feeding to the conveying pipe, maintaining stable air-solid ratio in the pneumatic conveying pipe, thus enabling the normal operation of pneumatic conveying.At the same time, it can isolate the air pressure between the upper and lower parts of the discharger to achieve air locking, ensuring the normal discharging of the star-type discharger.When materials in the upper silo fall by their own weight and fill the gaps between the blades, they are discharged from the lower part with the rotation of the blades. Therefore, the star-type discharger can discharge materials quantitatively and continuously.Star-type discharger is widely used in the discharging operation of powder and granular materials, especially in industrial sectors such as environmental protection, metallurgy, chemical industry, grain processing, cement production, road construction, and drying equipment.It can be used as one of the important equipment in dust removal systems, especially suitable for handling dust and small granular materials.Generally, the structure of a star-type discharger consists of a rotor impeller with several blades, a shell, seals, a reducer, an electric motor, etc.When materials in the upper silo fall by their own weight and fill the gaps between the blades, they are discharged from the lower part with the rotation of the blades. Therefore, the star-type discharger can discharge materials quantitatively and continuously.
Structure of Star-Type Discharger:
Star-type discharger is usually composed of a rotor impeller with several blades, a shell, seals, a reducer, an electric motor, etc.It features a compact design, elegant and novel appearance, small size and light weight, making it very suitable for use in various occasions.At the same time, it has excellent sealing performance, which can effectively prevent material leakage and air inhalation.
Star-type dischargers are usually designed and manufactured using wear-resistant materials to adapt to the abrasiveness of different materials.For example, when handling highly abrasive materials, the blades of the star-type discharger may be made of wear-resistant alloy to extend the service life of the equipment.At the same time, to adapt to different working environments, the structure of star-type dischargers may vary, such as explosion-proof type and high-temperature type, to meet the needs of specific working conditions.
Working Principle of Star-Type Feeder:
A star-type discharger is usually composed of a rotating impeller and a fixed shell.The impeller is equipped with multiple blades that rotate around the axis, forming a star-shaped appearance, hence the name "star-type discharger".When materials enter the discharger, they are pushed by the blades and move along the shell to the discharge port.By controlling the rotation speed of the impeller, the material conveying volume can be adjusted to achieve continuous or intermittent material discharge.
In practical applications, the selection and maintenance of star-type dischargers are very important.A suitable star-type discharger can improve production efficiency and reduce energy consumption, while improper maintenance may lead to equipment failure and affect production.Therefore, regular inspection and maintenance are crucial to ensuring the normal operation of the star-type discharger.
Maintenance of Star-Type Ash Discharger:
- During the use of the star-type discharger, if the equipment has axial air leakage, ash leakage and other phenomena, simply press the material cover to solve the problem.
- During the operation of the star-type discharger, avoid equipment overload caused by large material particles and strong adhesion, or equipment jamming or motor short circuit caused by foreign objects left in the dust collector, which may lead to equipment damage. It is recommended that users check in a timely manner and install an overload protection device.
- During the transportation and installation of the star-type discharger, it should be kept stable to avoid collision, which may cause shell fracture, deformation, etc.
- The star-type discharger (star-type ash valve) is suitable for continuous operation and can be used for both forward and reverse rotation.
- When installing the output shaft, input shaft and other parts and accessories of the discharger, do not directly hammer to prevent damage.
In conclusion, the star-type discharger plays an important role in industrial production.The diversity of its design principles and application fields makes it an indispensable equipment for material handling in many industries.Understanding the working principle and correct usage of the star-type discharger is of great significance for improving production efficiency and ensuring production safety.With the development of technology, the performance of star-type dischargers will be more optimized and their application scope will be more extensive in the future.
Technical Parameters
Technical Parameters
| Model | Output(m³/h) | Rotating speed of the vane(r/min) | Import and export dimensions L × W (mm) | Power | Speed(r/min) |
| GY-Φ200×200 | 7 | 34 | 200×200 | 1.1 | 34 |
| GY-Φ200×300 | 10 | 34 | 200×300 | 1.1 | 34 |
| GY-Φ300×300 | 23 | 34 | 300×300 | 1.1 | 34 |
| GY-Φ300×400 | 31 | 34 | 300×400 | 1.5 | 34 |
| GY-Φ400×400 | 53 | 34 | 400×400 | 3 | 34 |
| GY-Φ400×500 | 67 | 34 | 400×500 | 3 | 34 |
| GY-Φ500×500 | 106 | 34 | 500×500 | 4 | 34 |
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Scraper Arch Breaker
- High-Quality Material Guarantee: The main body is made of SUS304 stainless steel, which has stable physical properties. It is not only corrosion-resistant and wear-resistant but also meets the hygiene level requirements of the food and pharmaceutical industries, avoiding contamination when materials come into contact with the equipment. SUS304 stainless steel scraper arch breakers are safe for food-grade applications.
- Simple Structural Design: The overall structure has no complex redundant parts and adopts a "bolt-free" assembly process, reducing gaps for material accumulation and cleaning blind spots. During daily maintenance, there is no need to disassemble complex components; only the scraper wear condition and gear lubrication status need to be checked, which greatly reduces maintenance costs and downtime. Low-maintenance scraper arch breakers save production costs for factories.
- Long Service Life: The core transmission components (gears) adopt precision machining technology, and combined with the wear-resistant treatment of the scraper, mechanical loss during operation is reduced. At the same time, compared with chain transmission, the gear transmission method avoids the risk of chain loosening and breaking, and the average service life of the equipment is more than 30% longer than that of traditional discharging equipment. Long-life scraper arch breakers reduce equipment replacement frequency for manufacturers.
- Significant Arch-Breaking and Wall-Cleaning Effect: The design of the scraper making circular motion along the silo wall can directly act on the retained materials on the side walls and bottom of the silo. It not only solves the "bridging" and "hollowing" problems but also cleans the materials attached to the silo wall, avoiding caking and deterioration caused by long-term material retention and improving material utilization rate. Scraper arch breakers with excellent wall-cleaning function enhance production efficiency.
- Alleviating Material Segregation: For mixed materials with uneven particle sizes, traditional discharging methods are prone to "segregation" (large particles concentrate at the bottom and small particles concentrate at the top) due to different particle settlement speeds, which affects subsequent production quality. The scraper arch breaker keeps the materials in a mixed state during the falling process through the uniform stirring and pushing of the scraper, effectively alleviating the segregation problem. Scraper arch breakers prevent material segregation for consistent product quality.
- Quiet Operation Experience: The gear transmission link adopts a high-precision meshing design, and combined with the lubrication treatment of bearings, the noise during operation is controlled below 60 decibels (equivalent to the volume of daily conversation), avoiding the harsh noise of traditional discharging equipment during operation and improving the workshop working environment. Quiet scraper arch breakers create a comfortable working environment for production line engineers.
- Wide Hopper Angle Adaptability: It can adapt to hopper angles within 45°. Whether it is a vertical silo or an inclined silo, accurate connection can be achieved by adjusting the installation angle, without the need for large-scale modification of the existing silo structure. Scraper arch breakers with flexible hopper angle adaptation fit various silo types.
- Rich Specifications and Customization Options: Standard caliber specifications from φ40 to φ500 are provided, covering different needs from small laboratory equipment to large-scale industrial production lines. For large-caliber needs beyond the standard caliber (such as above φ500), exclusive equipment can be customized through technical consultation according to the customer's silo size and material characteristics, ensuring seamless connection with the existing production system. Customizable scraper arch breakers meet diverse industrial needs for purchasers.
- Expandable Blade Design: It supports the installation of multiple scraper blades (the specific number is determined according to material fluidity and discharging volume). The more blades there are, the higher the discharging efficiency and the more uniform the material stirring, which can be flexibly adjusted according to the actual production rhythm. Expandable blade scraper arch breakers optimize discharging efficiency for different production beats.
KCB Series Gear Pump
- KCB Series Gear Pump is mainly composed of gears, shafts, pump body, relief valve and shaft end seal. The gears undergo heat treatment to achieve high hardness and strength, and are installed in replaceable shaft sleeves together with the shafts for operation. The lubrication of all parts in the KCB Series Gear Pump is automatically achieved by using the output medium when the pump is working.
- The pump is designed with reasonable oil discharge and oil return grooves, which reduce the torque force borne by the gears during operation. As a result, the bearing load is small, wear is minimal, and the KCB gear oil pump has high efficiency.
- KCB Gear Pump is equipped with a relief valve for overload protection. The full return pressure of the relief valve is 1.5 times the rated discharge pressure of the pump. The KCB gear oil pump can also be adjusted separately according to actual needs within the allowable discharge pressure range. However, it should be noted that this relief valve cannot work as a pressure reducing valve for a long time; if necessary, a separate pressure reducing valve can be installed on the pipeline. When viewing the pump from the extended end of the main shaft, the rotation direction is clockwise.
Knife Gate Valve
- Ultra-short structural length saves materials and greatly reduces the overall weight of the pipeline system matched with the knife gate valve.
- It occupies small effective space, effectively supports pipeline strength, and reduces the possibility of pipeline vibration when used with the knife gate valve.
- The gate plate of the knife gate valve is made of austenitic stainless steel, which greatly improves corrosion resistance and effectively prevents sealing leakage caused by gate plate corrosion.
- The upper sealing packing of the knife gate valve adopts flexible PTFE, ensuring reliable sealing and easy, flexible operation.
- The gate plate of the knife gate valve has a knife function, which can effectively cut off various impurities in the medium.
Bin Bottom Vibratory Discharger
- Low power consumption, high efficiency and obvious effect.
- The discharge hopper is integrally stamped, with good rigidity and smooth inner wall. The built-in tapered discharge plate protrudes upward to ensure no material residue in the discharger.
- The vibration force and amplitude can be easily adjusted.
- The fixing bolts of the discharge plate are assembled from top to bottom, which improves safety.
- Low noise generated by vibration, meeting environmental protection requirements.
- Safe and reliable to use, with safety protection devices.
- Simple and novel equipment structure, convenient installation and low maintenance rate.
Roots Blower
- It has the characteristic of forced transportation. Under the condition of a certain rotating speed, the flow rate is basically unchanged. Even in the small flow rate area, surge will not occur, and it has stable working characteristics.
- As a rotary machine, it has no reciprocating mechanism, no air valve, few wearing parts and a long service life.
- It inhales and exhausts air many times in one operation cycle. Compared with the piston compressor, the air flow speed is uniform and there is no air storage tank.
- There is a certain gap between the moving parts and the static parts, and no lubricating oil is needed in the chamber, which ensures that the transported gas is oil-free and no oil-gas separation device is required.
- There is no internal compression process, and the mechanical efficiency is high.