Coal mine main and auxiliary shaft air heater

I. Names

Air heating units, industrial hot air blowers, mine heaters, mining steam heating equipment, hot water type air heating units, KJZ-40, air heating equipment, heating and ventilation units, steam type warm air blowers, hot water type warm air blowers, KJZ-50, KJZ-45, KJZ-40, KJZ-60, KJZ mine heaters, KJZ mine air heating units, KJZ mine hot air units, mine air heating equipment, air heaters, duct type heaters, duct type air heaters, duct type electric air heaters, electric hot air furnaces, electric heating units, coal mine electric heaters, coal mine electric heating units, shaft anti-freezing equipment.

Insulation resistance: ≥0.5MΩ

II. Performance Parameters

Brand: Shandong Xinbang  Power: 11 (kVA)   Temperature range: -20℃-300℃  

Custom processing: Yes

Operating voltage: 380V 660V     

Heater type: Air heater             Model: SGRF-30/40/4-Q  

Electric strength: Strong                         Specifications: Customizable to various specifications as required

Continuous service life: 10 years                  Application: Mine ventilation, heating

Dimensions: Customizable according to customer requirements (m)    

III. Introduction

1. Introduction to Air Heating Units

* This equipment is specifically developed by the company for industrial and mining enterprises as a heating and ventilation device. It features stable performance, long service life, and a high degree of automation.

* The product is divided into two types: steam type and hot water type. The steam type uses steam as the heat source; the hot water type uses hot water as the heat source, with a water temperature not lower than 110℃.

* The product is equipped with a control system developed by the company. It can automatically adjust the outlet air temperature and air volume based on changes in ambient temperature, ensuring comfort and safety in the production environment while saving significant energy consumption.

2. Technical Advantages

  * Due to excessively low temperatures in mines during winter, freezing may occur, posing production safety risks. To address this issue, our company developed the air heating unit, which serves as a mine ventilation and heating device. The air heating unit can control the ventilation temperature above 2℃, effectively preventing freezing and ensuring production safety.

  * An air heating chamber is set up nearby. The air heating unit is installed in the air heating chamber. The air intake of the unit faces the intake window of the chamber, and the outlet delivers heated air through ducts. The automatic control system ensures the mixed temperature of heated and natural intake air remains between 2-2.5℃.

3. Technical Features

1. Stable performance and safe operation

* Thanks to the highly automated and integrated air heating equipment, the outlet air temperature remains constant, keeping the ventilation temperature within safe operating conditions. This avoids the issue of substandard ventilation temperatures often seen in conventional air heater designs due to unstable heat media or performance degradation of heat transfer components, thereby eliminating production safety hazards.

2. Automatic operation, enabling unmanned operation

* The air heating unit is equipped with an intelligent electric temperature control valve that strictly regulates the outlet air temperature by automatically adjusting steam flow. The computer control cabinet includes a fan frequency conversion adjustment device that tracks signals from mixed temperature sensors to automatically regulate air output, ensuring the ventilation temperature always operates within the specified range.

3. Long service life with no overall performance degradation

* Traditional air heaters often experience performance degradation after several years of use due to oxidation of heat conduction components or other reasons, leading to operational failures. Hot air furnaces also suffer from shorter lifespans over time due to oxidation and corrosion during idle periods. Although heat exchange components in air heating units may also experience operational degradation, the automatic control system compensates by adjusting ventilation air volume, ensuring long-term safety of ventilation facilities. Additionally, air heating units are corrosion-resistant, resulting in a longer service life. With high-stability components, the service life of air heating units can exceed 10 years.

4. Efficiency

* Due to automatic intelligent control, energy consumption strictly aligns with ventilation requirements, resulting in steam consumption being only half that of traditional air heaters.

* In traditional air heater hot air systems, manual control often leads operators to set operating temperatures at 5℃ or higher to prevent risks from low temperatures, resulting in energy consumption 2-3 times higher than the optimal operating condition of 2-2.5℃.

5. Highly integrated electromechanical structure for easy installation, maintenance, and management

* The air heating unit integrates high-performance heat transfer components, fans, and automated control systems into a cohesive unit, simplifying installation, operation, and maintenance.

* Intake air temperature, outlet air temperature, and heat medium temperature are all displayed on the control panel's LCD screen, providing clear visibility of all parameters. Information can be remotely transmitted via an R485 interface, enabling computer remote monitoring and greatly facilitating management.

* Multiple units share a single computer control cabinet, automatically starting, shutting down, and alternating operation based on actual needs.