Bucket elevator

Detailed technical description of bucket elevator of Shanghai Muxiang Machinery Equipment Co., Ltd.

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1. The equipment provided by Muxiang has complete functions, advanced and mature technology, and can meet labor protection conditions. The equipment supplied by Muxiang is properly designed and manufactured, and the various working conditions provided can meet the requirements of safe and continuous operation, and can meet the requirements of various working conditions such as continuous or intermittent operation, frequent start and stop, and start-up operation under full load. , Guaranteed output. The performance of the system should be reliable, the operation should be simple and energy-saving. And should fully comply with environmental protection regulations.

2. The equipment parts adopt advanced and reliable manufacturing technology, with good surface shape and appropriate tolerance matching. Parts that are prone to wear, corrosion, aging or need adjustment, inspection and replacement can be disassembled, replaced and repaired, and spare parts should be provided.

3. The components of the equipment should be able to operate safely and continuously under normal operating conditions, and there should be no problems such as excessive stress, vibration, temperature rise, wear, corrosion, and aging.

4. The bucket elevator is equipped with a shell, which has good sealing performance. During loading and lifting, no material is spilled and the operation is stable. The rolling part has buffering effect and self-lubricating ability, and good wear resistance. The spare parts of the equipment are easy to replace, with few wearing parts and easy to repair. The inner surface of the hopper needs to be treated with a coating, which has the characteristics of wear resistance, corrosion resistance, high temperature resistance and not easy to adhere to materials. The continuous trouble-free operation time of the equipment is not less than 7000 hours. The service life of the whole machine should be guaranteed not less than 30 years.

5. Both the bucket elevator body and the transmission part adopt a fully enclosed structure, and the complete equipment requires tight sealing, no leakage, and no dust. The equipment has good sealing performance when running at 20Kpa. The equipment should ensure normal operation at 200℃, can withstand the transportation of 300℃ high temperature accident slagging, and have corresponding measures.

6. The shell material of the bucket elevator is Q235A, and the thickness should not be less than 6mm to ensure the strength of the shell; the bucket elevator should be lined with wear-resistant and wear-resistant plates, and its service life is not less than 25000 hours, and it is provided to ensure this requirement A description of the measures taken.

7. The core component of the bucket elevator, the hoisting chain, should be a high-strength, high-wear-resistant chain. Ensure that the service life of the chain is not less than 30,000 hours. The sprocket material is ZG310-540, the hardness is HRC45-50, and the service life is not less than 30,000 hours. The head shaft and tail shaft should be 40 Cr, quenched and tempered HB241-286. The service life of the motor and reducer is not less than 50,000 hours.

8. The material of the hopper of the bucket elevator is 16Mn, and the thickness of the hopper is not less than 3 mm. The service life is not less than 30,000 hours. The inlet and outlet pipes are made of high-strength and wear-resistant materials.

9. The structural design of the bucket elevator should not be easy to accumulate and stick to dust; the body is equipped with a sealed inspection hole to observe the operation of the equipment and facilitate the replacement of parts; the bottom shell of the bucket elevator should be equipped with an inspection door, Cleaning doors, etc., can be opened regularly to remove residual materials in dead corners. Installation of drag chains, hoppers and normal maintenance of parts can be carried out at the bottom inspection port.

10. The chain tensioning device of the bucket elevator is easy to adjust, and the tensioning device is located in the bottom casing.

11. The bucket elevator is equipped with a top inspection platform.

12. The bucket elevator is equipped with electrical and mechanical protection devices. It is equipped with an on-site control cabinet and remote control interface to ensure that it can automatically stop and give an alarm when the chain is broken, the chain is dropped, the jam, and the material is blocked.

13. The connection between the chain bucket and the chain adopts high-strength bolt connection.

14. The body adopts a double sealing method, and temperature-resistant sealant should be applied between all the casing and the sealing strip and the flange joint surface.

15. There is a positioning device in the middle of the bucket elevator to prevent the shell from moving sideways, and it can move freely in the vertical direction. The movement caused by thermal expansion cannot affect the connection and sealing of the discharge port.

 16. Due to the high temperature of the conveying material, the sprocket at the head and tail of the bucket elevator should adopt a double-rim structure suitable for high-strength chains to avoid possible chain suspension. The gear teeth adopt ZG310-540, surface quenching treatment, hardness It is HRC45-50. The tail of the bucket elevator is tensioned with a heavy hammer type automatic compensation method to avoid the slip chain phenomenon caused by the wear of the chain.

17. The driving device of the bucket elevator should be equipped with a backstop to prevent the sudden power failure from causing the reverse movement of the material hopper and causing equipment damage. The motor of the drive device should meet the requirements of rainproof and dustproof, its protection level is not less than IP54, and the insulation level is F. Motor bearings adopt SKF brand bearings.

18. The bucket elevator should be equipped with a broken chain protector. The chain-breaking protector is installed on the tail shaft and rotates with the shaft. When the tail shaft speed of the bucket elevator is abnormal due to overload operation, jamming, etc., the control cabinet will alarm and stop automatically to ensure the safety of the equipment. In addition, the bucket elevator should also be equipped with a blocking alarm switch.

19. When the hoist is reversed due to power failure or other reasons during work and maintenance, take corresponding protective measures to prevent the bucket and chain from being damaged due to the reverse.

20. The hoist should be equipped with chain-dropping, chain-breaking, and parking protection devices. When the hoist fails, the above protection devices can automatically alarm.

21. The control box provided with the elevator performs local control of the elevator. Mutual switching is realized on the spot, and the control cabinet has the functions of display, alarm and interlock protection.

Shanghai Muxiang has the ability to provide customers with a package of equipment supply and technical solution services. Including in-depth consultation and suggestions on customer budget plans, providing design of related construction plans, on-site visits of similar projects for purchasers to compare, full guidance during construction and installation, and staff skill training before equipment production and quality services after production. Muxiang’s pre-sales recommendation, program design, turnkey project and after-sales service are our core competitiveness.