With the development of modern industry, the potential danger of dust explosion has greatly increased. Explosion proof valves can prevent the spread of explosions and avoid secondary explosions, thereby reducing explosion disasters. To reduce the risk of irreversible damage and loss in production, explosion-proof valves are a required explosion-proof device in safety supervision due to their simplicity and reliability.
Under normal operating conditions of the system, the internal back pressure valve disc floats up due to airflow, and the explosion-proof valve opens; In the case of system shutdown, the back pressure valve disc relies on the inclined end face on the inlet side due to its own weight; If detonation or explosion occurs on the outlet side of the explosion-proof valve under permissible conditions, due to the increase in back pressure, the airflow will flow in the opposite direction, causing the back pressure valve disc to close. The pressure wave generated by the explosion will cause the throttle blade to tightly seal against the inclined end face on the inlet side, thereby preventing the explosion from spreading to the upstream pipeline and equipment, thus preventing the occurrence of secondary explosions and protecting personnel and equipment safety.

Dust explosion-proof valve for dust removal. Parameters of dust explosion-proof valve:
Passive dust explosion-proof valve, gravity based design, no need for sensor triggering, available in normally open and normally closed types;
Applicable: Unidirectional explosion-proof, negative pressure system, horizontal installation;
Applicable dust: organic dust and inorganic dust (including metal dust);
Caliber ranges from DN100 to DN1000, with multiple options available;
Material: Valve body carbon steel, coating color RAL3000; Valve disc made of stainless steel;
Applicable wind speed: 15-30m/s;
Pressure loss: around 200pa;
Capable of withstanding explosive pressure: 0.7Kpa;
Applicable dust: St1 and St2 dust with Kst less than or equal to 300 barg * m/s;
Installation method: Horizontal installation, using flange connection;
Installation location: 3-7m from the inlet pipeline of the dust removal equipment;
It is possible to detect operating conditions through integrated sensors, allowing for longer maintenance times;
Durable and sturdy design, allowing for minimal maintenance;
Comes with an inspection cover for easy inspection;
Optional accessories such as signal sensors and closed position indicator switches;
Can provide testing reports from domestic authoritative institutions;

Features:
1. Wide applicability
2. Self locking device, adjustable by balance hammer, slight pressure loss
3. The product adopts an anti explosion design with integrated sensors for monitoring, providing millisecond level response
4. Low maintenance cost
5. Applied to the inlet pipe of dust collectors, cyclone separators, and other dust process pipelines
6. The valve disc is designed to be normally open

Principle:
Unidirectional explosion-proof valve is normally used on the inlet pipeline of dust collectors or cyclone separators. It is a simple, economical and reliable explosion-proof product, mainly used to block the flame and shock wave generated after internal explosion of equipment from transmitting to upstream pipelines and equipment. During operation, the valve disc of the one-way explosion-proof valve is opened by the normal working airflow in the pipeline or is in a normally open state. In the event of an explosion inside the protected equipment, the valve disc of the explosion-proof valve is closed due to the impact of the shock wave.

Dust explosion-proof valve for dust removalNotes:
Before installing the explosion-proof valve, the dust removal pipeline should be purged of accumulated dust, and the pipeline should be cut according to the size measurement of the explosion-proof valve. Use auxiliary equipment such as cranes for installation, and fix the bracket of the explosion-proof valve.
Preparation by the construction party before construction:
1. Prepare construction tools: plasma cutting machine, polishing machine, pliers, wrench, screwdriver, inflatable drill, hand drill, etc. 2. Prepare the high-altitude homework rope, hat, and gloves.
3. Provide construction personnel with work certificates.
4. Renting scaffolding and cranes.
5. Measure the average wind speed of three dust removal pipelines and record it. Installation location: The explosion-proof valve is about 3-4 meters away from the dust removal equipment.

Installing explosion-proof valves can effectively prevent the spread of explosions, protect adjacent workshops or equipment, and avoid secondary or multiple explosions.
Our main products include one-way explosion-proof valves, flameless venting devices, pipeline spark detectors, and other security products. We can provide installation and technical consultation.

There are three main ways to prevent dust explosions: explosion venting, explosion isolation, and explosion suppression
Explosion release: By using a pressure relief device to release the explosion in advance, the equipment is protected from damage.
Explosion proof: A type of explosion-proof valve is used to block explosions and prevent flames from spreading.
Explosion suppression: Firstly, the detection device detects the initial spark formed, and then feedback activates the fire extinguishing device to instantly extinguish the fire and prevent the occurrence of explosion.

Application fields:
Production workshops for artificial boards, wood, and furniture.
The environment of fibers, shavings, and dust generated during the movement of objects such as metals and sand.
The spark environment generated during the operation of high load equipment.
Enterprises that generate high dust environments such as tobacco, chemical, textile, food, feed, metallurgy, leather, rubber processing, etc.
Dust explosion requires five elements, and when these five elements coexist, there is a possibility of explosion occurring. The five elements are as follows: oxygen; Combustible dust; Fire source; Dust cloud; confined space

Dust explosion is accompanied by strong shock waves and flames. Due to the lack of pressure resistance of the equipment, it will be damaged during the explosion, resulting in the risk of secondary or multiple explosions. So we are required to pay attention to dust explosion protection.

In order to prevent equipment from generating dust explosions or to avoid greater harm in the event of dust explosions, explosion-proof pressure relief equipment is particularly important.

Explosion venting is one of the commonly used and effective methods of explosion protection; Release pressure during potential industrial explosions and provide a well-designed pressure release!
For more installation and technical details, please consult: Jiangxi Century Travel Gansheng

Our main products include flameless explosion-proof devices, explosion-proof valves, pipeline spark detectors, inlet and outlet pressure difference alarms, and other security products. We can provide installation and technical consultation