Coal chemical industry

Shanxi Anyun Fan Co., Ltd. | Comprehensive Explosion-Proof Fan Solution for the Coal Chemical Industry
I. Core Corporate Positioning
Shanxi Anyun Fans specializes in the R&D and manufacturing of explosion-proof ventilation equipment for mining and chemical applications. Leveraging the advantages of Shanxi’s coal‑chemical industry cluster, the company focuses on explosion‑proof axial fans tailored for the coal‑chemical sector, meeting the explosion‑proof ventilation needs of diverse scenarios—including coking, coal-to-olefins, coal-to-methanol, coal‑gas purification, and underground coal‑chemical facilities—while emphasizing explosion‑proof safety, corrosion resistance, durability, and low energy consumption as its core strengths.

II. Core Product Categories of Explosion-Proof Fans for Coal Chemical Applications (with on-site product photos from the plant)
1. FBD Series Flameproof Press-in Counter-Rotating Axial Flow Fan (the plant’s standard yellow model)
1. Applicable Scenarios
- Ventilation of auxiliary roadways in underground coal chemical facilities; air supply to the working face during coal‑chemical mine tunneling.
- Forced ventilation for the underground utility tunnels and gas transmission corridors in the coking plant area
- Ventilation of the underground operating room and the enclosed gasification workshop of the coal-to-gas plant
2. Explosion-proof advantages
The entire unit is certified to Ex d I / Ex d II BT4 explosion-proof standards, with a fully sealed, flameproof motor design. The blades feature an aluminum alloy surface treated with an antistatic coating to eliminate friction‑induced sparks. The device generates no open flames and is suitable for environments containing flammable and explosive gas mixtures such as coal gas, methane, and carbon monoxide.
3. Product Features
Dual‑stage counter‑rotating turbocharging delivers ample static pressure and long‑range air delivery; variable‑frequency speed control seamlessly accommodates the fluctuating ventilation demands of coal‑chemical plant workshops; low noise levels ensure suitability for continuous 24‑hour operation on plant premises.

2. Corrosion-Resistant and Explosion-Proof Centrifugal Fan
1. Applicable Scenarios: Coking chemical production workshop, desulfurization and decarbonization unit, coal-to-methanol distillation workshop, and extraction and exhaust of sulfur‑containing corrosive coal gas and waste gases.
2. Features: The casing and impeller are coated with anti-corrosion rubber or stainless steel, while the explosion-proof motor isolates corrosive gases, enabling the extraction of corrosive, flammable, and explosive exhaust gases containing hydrogen sulfide and tar vapor.

3. Explosion-proof local exhaust fans, portable explosion-proof blowers
It is used for maintenance of coal‑chemical facilities, cleaning of enclosed storage tanks, and temporary ventilation of underground cable trenches; it is portable and mobile, enabling rapid localized displacement of flammable gases.

III. Applications Across Sub-Sectors of the Coal Chemical Industry’s Full Value Chain
(1) Coking Industry (Shanxi’s Main Coal Chemical Sector)
1. Ventilation of the coke oven underground gallery: FBD explosion-proof counter-rotating fans provide forced air supply to dilute leaked raw coke oven gas and prevent the accumulation and explosion of flammable gases.
2. Chemical Production and Recovery Workshop (Crude Benzene, Ammonium Sulfate, Desulfurization): Corrosion‑ and explosion‑proof centrifugal fans are used to exhaust flammable, explosive, and corrosive waste gases containing benzene and hydrogen sulfide.
3. Temporary Ventilation During Coke Oven Maintenance: A portable explosion-proof local exhaust fan is used to displace flammable gases in confined spaces, ensuring safe maintenance operations.

(II) Coal-to-Methanol / Coal-to-Olefins
1. Enclosed workshop in the gasification unit: The explosion-proof main ventilation fan provides continuous air exchange, ensuring that the concentrations of synthesis gas and methanol vapor remain below their lower explosive limits.
2. Piping gallery in the distillation tank area: Explosion-proof axial-flow fans are installed along the gallery to promptly disperse any leaked methanol and dimethyl ether vapors.
3. Wastewater Treatment Biochemical Explosion-Proof Area: Explosion-proof, corrosion-resistant blowers are used to treat the combustible biogas generated during the anaerobic process.

(3) Deep coal processing and coal-to-natural-gas technologies
1. Underground gasification mine ventilation: High-pressure explosion-proof counter-rotating fans provide long-distance air supply to dilute underground coalbed methane.
2. Coal Gas Purification and Desulfurization Section: A sulfur-resistant, explosion-proof induced draft fan is used to extract the sulfur-containing raw coal gas under negative pressure.

(4) Supporting underground coal‑chemical raw material extraction roadways in coal mines
Explosion-proof FBD fans are deployed at tunneling faces and longwall roadways to ensure adequate ventilation for raw coal extraction, control methane at its source, and provide safe ventilation support for the upstream coal‑chemical feedstock mining operations.

IV. Core Advantages of AnYun Explosion-Proof Fans in Coal Chemical Applications
1. High-standard explosion-proof safety
The entire unit has obtained national explosion-proof certification, with an Ex d II BT4 high‑grade explosion protection rating, making it compatible with the vast majority of combustible media used in the coal chemical industry. The motor features built-in dual protection against overheating and leakage, while the blades are treated to prevent static electricity, effectively eliminating potential explosion hazards.
2. Suitable for chemical corrosion service conditions
Customizable stainless steel and rubber-lined corrosion‑resistant models resist corrosion from tar, hydrogen sulfide, and methanol vapor, extending equipment service life and reducing plant‑wide downtime and maintenance costs.
3. Continuous production is stable and reliable
Designed for 24/7 continuous operation in coal‑chemical plants, it features long‑life bearing lubrication and enhanced heat dissipation, enabling year‑round uninterrupted service. It also supports variable‑frequency intelligent control, dynamically adapting to varying production loads in the workshop to reduce energy consumption.
4. Localized Support Services (Shanxi Regional Advantages)
The plant is located in Shanxi Province and serves major coking and coal-to-gas enterprises across the region. We offer on-site condition assessments, customized fan specifications, prompt delivery of standard‑stock units, and rapid after‑sales service and maintenance. Additionally, we can tailor horizontal or vertical, fixed or mobile installation solutions to suit your facility’s spatial constraints.
5. Fully compliant and equipped with all necessary qualifications
It is equipped with the MA safety mark for mining equipment, an explosion-proof certificate, and a chemical equipment inspection report, thereby meeting the requirements for safety production acceptance and environmental compliance inspections of coal‑chemical enterprises.

V. On-site Production Support and Facilities (based on the actual photos of the factory you provided)
A modern, standardized production workshop featuring end-to-end full‑machine assembly, explosion‑proof performance testing, and factory‑level measurements of air pressure and airflow:
1. A multi-generation fan prototype display stand, enabling direct comparison of performance evolution across generations one through four of explosion-proof fans.
2. Large-scale complete-unit testing area: all yellow explosion-proof main blowers undergo full-load trial operation and inspection prior to shipment.
3. Safety and quality management system: Factory slogans such as “Integrity as the foundation, quality drives enterprise; technological innovation, service wins customers” and “Establish a corporate safety image, promote safe and civilized production” are integrated throughout the entire production process, with rigorous controls in place to ensure the quality of explosion-proof equipment prior to shipment.

VI. Industry-Specific Support Services Plan
1. Preliminary Phase: Conduct on-site surveys of the coal chemical plant area, calculate ventilation airflow rates and static pressures, determine explosion-proof rating requirements, and develop a customized ventilation design plan.
2. Mid-term: Custom-designed non-standard corrosion‑resistant, variable-frequency, and high‑temperature‑resistant explosion‑proof fans, complete with mounting brackets, silencers, and ventilation ductwork.
3. Post‑installation phase: annual maintenance, replacement of spare parts, rapid repair of turbine malfunctions, and periodic re‑inspection of explosion‑proof safety performance.