The emulsion lifting equipment (emulsion hoist) is an improvement of hydraulic hoist, which significantly improves the safety and stability of the equipment by replacing hydraulic oil with emulsion, especially suitable for flammable and explosive environments such as coal mines. Here is a specific introduction:

1、 Equipment principle and improvement background

Hydraulic hoist foundation: Traditional hydraulic hoists use hydraulic oil as a power source to drive the hoist gears in both forward and reverse directions through a hydraulic system, completing the lifting of heavy objects. Its core components include hydraulic motors, main control valves, manual control valves, and suspension systems, which have the characteristics of stepless speed regulation, small size, and light weight.

Improvement of emulsion gourd:

Power source replacement: Replace flammable hydraulic oil with non flammable emulsion (composed of 95% water and 5% oil), significantly reducing the risk of fire and adapting to scenarios with strict explosion-proof requirements such as coal mines.

Structural optimization: adopting modular integrated design, compact structure, easy to move and install underground.

Performance improvement: The hoist is driven by a transmission gear system and equipped with a reversing mechanism to achieve gear forward and reverse rotation, making operation more flexible.

2、 Equipment characteristics and applications

Key Features:

High safety: Emulsion has good explosion-proof performance and is suitable for flammable and explosive environments.

Strong stability: Emulsion has lubricating and anti rust effects on hydraulic components, extending equipment life.

Easy to operate: The manual control valve can achieve continuously variable transmission, and the main control valve completes the oil motor's forward and reverse oil supply work by switching between the left and right oil circuits.

Low noise: The equipment operates with minimal noise, improving the working environment underground.

Application Scenario:

Underground coal mine: As a power source for hydraulic supports, tunneling machines, coal cutters and other equipment, it supports the roof and ensures the safety of coal mining operation space.

Other industrial fields: suitable for occasions that require lifting and handling, such as loading and unloading materials at ports and stations.

3、 Equipment composition and working principle

Core components:

Hydraulic motor: composed of gears, housing, and sealing rings. When the hydraulic circuit is opened, high-pressure oil is sent into the motor to drive the gears to rotate at high speed.

Main control valve: composed of a valve stem, valve sleeve, and spring, it completes the oil supply work of the oil motor in both forward and reverse directions through the switching of left and right oil circuits.

Hand controlled valve: composed of a handle, valve body, and buttons, it achieves stepless transmission.

Hanging system: composed of upper hook, hanging body, chain wheel, chain, lower hook and other parts, it completes the lifting and lowering of heavy objects.

Working Principle:

The process of suction and discharge: By driving the piston to reciprocate through the rotation of the crankshaft, the suction and discharge function is achieved, providing high-pressure emulsion for the hydraulic system.

Power transmission: The emulsion drives the hoist through the transmission gear system, and the reversing mechanism enables the hoist gears to rotate forward and backward, completing the lifting and lowering of heavy objects.

4、 Equipment advantages and market response

Advantage:

Excellent explosion-proof performance: The emulsion medium effectively reduces the risk of fire and ensures operational safety.

Strong adaptability: Modular design facilitates underground movement and installation, adapting to complex operating environments.

Easy maintenance: simple structure, low failure rate, and low maintenance cost.

Market response:

Widely used: It has been widely applied in industries such as coal mining, metallurgy, and ports, and has received high praise from customers.

Technological upgrade: With the development of high-yield and high-efficiency comprehensive mechanized working face large flow electro-hydraulic control hydraulic supports, emulsion lifting equipment is constantly updated and upgraded, and the output pressure is generally increased to above 31.5MPa, with a flow rate of 300-1350L/min.

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