Shanghai Longyu Machinery Equipment Co., Ltd. has developed and designed a solution forSpecial characteristics of soft sedimentdecanter--Double cone bucket horizontal spiral discharge settling centrifuge.Double cone bucket horizontal spiral discharge settling centrifugeCombining the advantages of disc separators and horizontal screw centrifuges. It uses a method similar to a disc separator to clarify the suspension, achieving clear separation. At the same time, like a centrifuge, it can continuously discharge a large amount of separated solids
The separation efficiency of soft, fluid, and fine solid particles using a standard horizontal screw centrifuge can meet production requirements. However, using the newly developed and designed double cone bucket centrifuge by Shanghai Longyu Machinery Equipment Co., Ltd. can improve the separation efficiency. Equipped with adjustable impellers, it can achieve separation requirements even when the feeding amount is variable.

Separation technology

Feed → gravity separation → discharge → slag discharge.

application area

• biotechnology

• soymilk

• Wheat starch

• Further extraction of distiller's grains

• Yeast liquid

• Protein solution

• Zymotic fluid

• Ultrafiltration residue

• CIP cleaning solution

• Slag free activated sludge

• Fruit juice by-products

• Soapberry produced in the refining process

• Plant extraction
  

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Centrifuge parameter table

Processing capability description: The size of processing capability is related to the characteristics of the material

Centrifuge power description: The centrifuge power is determined based on the material characteristics and other factors

Main technical features

1. Industrial design

The overall design follows and integrates industrial design concepts, highlighting the stability of the main structure, the functionality of the host, and the safety of the entire machine, while effectively absorbing the dynamic load shear force during equipment operation.

2. Effectively avoiding the phenomenon of resonance zone in high-speed rotation of dual rotors

Within the designed speed range, there is no obvious first-order or second-order resonance zone phenomenon during the operation of the whole machine, and the full vibration intensity of the bearing seat is controlled between 2mm/s and 4mm/s. Avoiding additional fatigue damage to various components of the equipment caused by high-frequency vibration and beat vibration.

3. Thoroughly eliminate the phenomenon of liquid ring stall

Thoroughly eliminating the phenomenon of liquid ring stall during heavy load startup or shutdown of the entire machine (especially LW530 and above large models), thereby avoiding additional impact fatigue damage to the main bearings, spiral bearings, and rotating components of the equipment caused by the jumping or severe shaking of the entire machine due to liquid ring stall.

4. The raw materials for the components are produced using centrifugal casting and forging processes

The main components of the whole machine are manufactured using centrifugal casting or integral forging processes, which completely avoids the uncontrollable quality risks such as intergranular corrosion and residual stress release caused by traditional welding processes.

5. Selection of host bearings

Select products from NSK, SKF, FAG and other brands of origin.

6. Constant temperature inspection

All precision machined components of the entire machine are inspected under constant temperature conditions to ensure that the actual machining quality meets the design accuracy requirements.

7. The main rotating body and all components of the same model have interchangeability under the guarantee of the overall interchangeability structure design and key position processing technology and accuracy, making it easier to maintain and greatly improving the reliability and safety of the equipment.

8. Easy and safe disassembly of bearings

The mating surface between the bearing and the workpiece is separated by a layer of oil film injected under high pressure during disassembly, fundamentally eliminating friction between them, reducing the required pulling force by 90% during disassembly, and reducing the risk of damage to high-precision components during bearing disassembly.

9. Main bearing lubrication system

A、 Thin oil lubrication

① The oil pump station controls the continuous circulation and lubrication of thin oil;

② Jet lubrication method provides continuous cleaning, cooling and lubrication for bearings;

③ Equipped with an oil filtration system to ensure the cleanliness of lubricating oil;

④ Equipped with an oil supply pressure storage system, it can ensure that the lubrication station continues to supply lubricating oil with an oil pressure of not less than 0.4 MPa for 5-6 minutes in the event of a sudden power outage;

⑤ Equipped with an oil temperature constant temperature system.

B、 grease

① Use lubricating grease that is resistant to extreme pressure, oxidation, abrasion, water erosion, corrosion, and high temperature.

② An automatic grease lubrication system can be optionally selected to automatically add a quantitative amount of grease to the main bearings at a set time.

10. Main bearing BH protective device

The main bearing is designed with protective bearings at both ends. Under normal circumstances, the protective bearings do not work (a certain axial clearance is reserved between the inner ring of the protective bearing and the main shaft). When the main bearing is suddenly damaged in some unexpected extreme working conditions, or the jumping amplitude caused by the deviation of the main engine rotation center reaches the axial clearance value reserved between the inner ring of the protective bearing and the main shaft, the protective bearing starts to work. At the same time, the automatic control system of the main engine detects a sudden change in the vibration value of the bearing position, and the emergency stop program of the equipment is triggered. Under the action of protecting the bearing, the equipment stops smoothly, ensuring that the main components of the equipment are not damaged and ensuring production safety.

11. HMI Human Machine Interface

The operating system adopts HMI human-machine interface, which can realize various operations of the centrifuge through the interface and monitor the working status of the centrifuge in real time.

12. Intelligent control system

The control system adopts a PLC programmable controller, with two operation modes: manual operation and one key fully automatic operation. It has functions such as automatic adjustment of differential speed of the screw feeder, automatic adjustment of constant torque of the screw feeder, one key automatic completion of centrifuge cleaning, and one key standby of the centrifuge.

13. Comprehensive security protection system

Having a comprehensive monitoring system and alarm system. Protect the centrifuge in case of overload, short circuit, and phase loss during the work process; Real time monitoring of operating parameters such as centrifuge speed, bearing temperature, and overall vibration, and alarm shutdown in case of abnormal parameters to ensure personnel and equipment safety.