Application areas and product specifications of emulsion crane hoist

1、 Application Fields

The emulsion lifting hoist is a device designed specifically for safe production in high-risk industries such as coal mines. Its core application scenarios include:

Coal mine underground operations

Replace traditional hydraulic oil equipment, solve the risk of mineral oil flammability and explosiveness, and ensure the safety of underground lifting, transportation, and other processes.

Suitable for hydraulic systems of hydraulic supports, hydraulic brackets and other equipment, as well as hydraulic transmission of some transportation equipment and rock drilling equipment.

High temperature and open flame environment

In flammable scenarios such as the power industry and high-temperature workshops, emulsion, as a flame retardant medium, can avoid fire or explosion accidents caused by hydraulic oil leakage.

Metal Processing and Forming

Some emulsion products, such as aluminum alloy emulsion and bio stable emulsion, can be used in metal cutting, grinding, drilling, tapping and other processes to improve machining quality and extend tool life.

2、 Product specifications and core parameters

Taking the emulsion crane hoist used in coal mines (such as HRD5 type) as an example, its typical specifications are as follows:

Specification Description for HRD5 Parameter

Rated lifting capacity of 5000 kg can be customized according to requirements (such as HRD10 type with a capacity of 10000 kg)

The working medium emulsion (concentration 5%) has a water content of over 95%, inheriting the characteristics of flame retardancy, low viscosity, and high specific heat of water.

The rated pressure of 20 MPa ensures stable operation of the system in high-pressure environments.

Rated flow rate of 40 L/min matches the hydraulic system requirements to avoid insufficient or excessive flow.

Increase speed 1.1 m/min (unloaded)

0.6 m/min (full load) automatically adjusts according to the load to ensure smooth operation.

The chain has a diameter of 15 mm and is made of high-strength alloy steel chain with high tensile strength.

The lifting height of 60 meters can be adjusted according to the depth of the mine.

The modular integrated design features a compact structure, small size, and light weight (net weight of 3 kg), making it easy to install and maintain underground.

The control system can adjust the flow valve to support infinite speed regulation and adapt to different working conditions.

The safety function automatically locks in case of sudden gas interruption to prevent the load from falling.

3、 Technical advantages and selection suggestions

technical advantage

Flame retardancy: The emulsion has a high water content, which can effectively suppress the risk of fire and meet the safety standards of coal mines.

Environmental friendliness: Using biodegradable additives to reduce pollution to the environment.

Economy: Compared to synthetic hydraulic oil, emulsion has lower cost and simpler maintenance (such as centrifugal separation technology for recovering base oil).

Selection suggestions

Select based on operating conditions:

Light load and high-frequency operations: Choose small-sized equipment such as HRD5 to balance efficiency and cost.

Heavy load and long-distance lifting: Use HRD10 and other large-sized equipment to ensure stability.

Medium concentration control:

The emulsion concentration should be maintained at 3% -5%, as excessive concentration can lead to increased viscosity and decreased fluidity; If it is too low, it will affect the lubrication and cooling effect.

Regular testing:

Monitor the pH value (7.5-8.5), bacterial content, and particle contamination of the emulsion, and replace the deteriorated liquid in a timely manner.

4、 Industry Trends and Future Directions

Extend service life: By optimizing the emulsifier ratio and stirring process, the problems of emulsion stratification and additive failure can be reduced.

Reduce maintenance costs: Develop self-cleaning filtration systems and intelligent monitoring devices to achieve real-time status feedback of emulsions.

Green development: Promote biodegradable emulsifiers, reduce waste emissions, and comply with environmental regulations.

The main equipment produced by Hebei Makita: stage electric hoist, electric chian hoist, wire rope electric hoist，Hand chain hoist, lever hoist, pneumatic hoist and other lifting equipment