DINKONDA GLOBAL Power Plants Special 600m ³ Blast Furnaces Hot Air System 0.3MPa ～ 0.65MPa，+1100℃～ +1380℃ Holvin Style Air Supply Device, Composite Bellows Compensator, Metal Expansion Joint

DINKONDA GLOBAL Power Plants Special 600m ³ Blast Furnaces Hot Air System 0.3MPa ～ 0.65MPa,+1100℃～ +1380℃ Holvin Style Air Supply Device, Composite Bellows Compensator, Metal Expansion Joint

Product Overview

The Holvin type air supply device is the core supporting equipment of the blast furnace hot air system, specially adapted for blast furnaces with a volume of 600m ³ or more. The entire device is used for the transportation of hot air between the hot air duct and the blast furnace tuyere. It relies on a composite corrugated pipe compensation structure to absorb the multi-directional displacement generated by the hot operation of the pipeline, buffer the thermal deformation stress, and ensure the stable transportation of high-temperature hot air. It is a key component of the tuyere air supply pipeline in modern blast furnace ironmaking systems.

Structural Composition

1. * * Horn tube * *: a transitional pipe connecting the hot air duct and compensator, with smooth flow guidance, reducing the flow resistance of high-temperature hot air, and withstanding high-temperature alternating heat loads.

2. * * Compound free type compensator * *: composed of two independent corrugated tubes, it is the core component of displacement compensation, which can synchronously achieve axial and radial multi-dimensional displacement

 compensation and adapt to the complex thermal expansion deformation of blast furnace body and surrounding tube.

3. * * Bent pipe * *: a turning component of the pipeline, connecting the compensator and the straight blowing pipe to change the direction of hot air flow.

4. * * Peek hole * *: an observation window that facilitates on-site inspection personnel to observe the internal combustion status of the air vent, achieving non-stop visual inspection.

5. * * Direct blow pipe * *: The final conveying section of high-temperature hot air sends the hot air into the internal tuyere of the blast furnace.

6. * * Upper tensioning device * *: The upper tension rod is a fixed structure that constrains and protects the corrugated pipe, controls the maximum deformation of the compensator, and prevents damage to the corrugated pipe due to excessive stretching.

7. * * Lower compression device * *: The lower support compression component bears the weight of the pipe fittings, stabilizes the installation position of the entire air supply device, and absorbs the weight and vibration load of the equipment.

Core Features

1. Multi directional displacement compensation capability**
Adopting the classic Holven structure and relying on two sets of composite corrugated pipes, it can simultaneously absorb axial and radial combined displacements, adapt to the irregular thermal expansion and complex deformation caused by foundation settlement after the heating of the blast furnace body and hot air shroud, effectively release pipeline thermal stress, and avoid pipeline cracking and weld failure.

2. High temperature resistant design, suitable for blast furnace hot air conditions**
Long term exposure to high temperature hot air ranging from 1100 ℃ to 1380 ℃, with internal high-temperature lining structure and pipe fittings selected to adapt to high temperature and high-speed hot air erosion conditions, excellent thermal fatigue resistance.

3. Strong adaptability to pressure**
The design pressure range is 0.3MPa to 0.65MPa, which meets the pressure rating requirements of the hot air pipeline network for large and medium-sized blast furnaces.

4. * * Integrated Integrated Structure**
The entire device is modularized and assembled, with a compact structure and convenient on-site installation and docking; Configure peepholes for easy operation and maintenance inspections, and real-time monitoring of air outlet conditions.

5. * * Security protection structure**
The upper and lower supporting tensioning and clamping devices limit the ultimate displacement of the corrugated pipe, buffer system vibration, avoid fatigue damage of the corrugated pipe due to excessive deformation, and improve long-term continuous operation reliability.

Technical Parameters
-Product Name: Holvin style blast furnace air supply device
-Suitable for blast furnaces: 600m ³ and above capacity blast furnaces
-Design pressure: 0.3MPa~0.65MPa
-Hot air working temperature: 1100 ℃~1380 ℃
-Compensation function: capable of achieving axial and radial multi-directional displacement compensation
-Structural type: Holven type, compound free type double corrugated tube compensation structure

FAQ:
Q1.What about the lead time?
A: 5-7 days for Sample preparing ,15-20 working days for mass production.

Q2. Is it OK to print my logo on led light product?
A: Yes. Please inform us formally before our production.

Q3: Do you offer guarantee for the products?
A: Yes, we offer 1 years warranty to our products.

Q4: How to deal with the faulty?
A: Firstly, Our products are produced in strict quality control system and the defective rate will be less than 0.2%.

Secondly, during the guarantee period, we will send new lights with new order for small quantity. For defective batch products, we will repair them and resend them to you or we can discuss the solution including re-call according to real situation.

Company Profile

DINKONDA GLOBAL has been developing and supplying equipment and components for specialized thermal power plants and related industries for 20 years and is one of the a market-leading global manufacturers and providers in the industry. We have a professional technical research and development team, professional management talents and dozens of quality inspection personnel. The company has more than 50 CNC machining centers, CNC lathes, various inspection equipment and other professional equipments.
Our comprehensive product portfolio and over 20 years of industry knowledge mean customers can rely on us to deliver innovative, reliable and economic products. Chenglei products are designed and manufactured with quality components and clear user interfaces for quick and safe operation in the field. Our strict product development and testing ensures long-lasting performance and continued reliability. Our independently developed and produced CL series valve electric actuators are widely used in various industries such as Oil & Gas, Water & Power, and Chemical, Process & Industrial .
Customers rely on us for innovative, high quality and dependable products for managing the flow of liquids, gases and powders. We help customers around the world to reduce emissions, improve efficiency, minimize their environmental impact and assure safety.