DINKONDA GLOBAL Power Plants Special Hot Air Pipelines And Furnace Body Connecting Pipelines Ironmaking Blast Furnaces Blast Furnace System Special High-temperature Metal Expansion Joint Compensator

DINKONDA GLOBAL Power Plants Special Hot Air Pipelines And Furnace Body Connecting Pipelines Ironmaking Blast Furnaces Blast Furnace System Special High-temperature Metal Expansion Joint Compensator

Product Overview

The special high-temperature expansion joint for blast furnace system is the core compensation component of the hot air pipeline and furnace body connecting pipeline for ironmaking blast furnaces. It is used to absorb the thermal displacement, angular and axial deformation generated by the blast furnace and hot air pipeline network during the heating and cooling process, relieve the thermal stress between the pipeline and the furnace structure, protect key equipment such as the blast furnace body, hot air surround, and pipeline support, and ensure the long-term continuous and safe operation of the blast furnace smelting system. The product is specially designed for ultra-high temperature conditions in blast furnaces and can be adapted to large blast furnace pipelines with super large diameters. It is an indispensable flexible compensation component for high-temperature pipeline systems in metallurgical blast furnaces.

Structural Composition

This high-temperature expansion joint consists of multiple layers of high-temperature resistant corrugated pipes, pressure bearing connections, limit rods, guide supports, insulation protective layers, flanges/welded connection ends, and other components. Multi layer corrugated pipe as the core flexible component, combined with external limit protection structure, can limit excessive deformation and prevent the corrugated pipe from being damaged by pressure and displacement loads; External protective structures are installed to resist high-temperature flue gas erosion and dust wear, suitable for harsh working conditions such as high dust and strong thermal alternation in blast furnaces.

Core Features

1. * * Extra large diameter coverage * *: The diameter specification is DN1000~DN8000mm, which can match the requirements of large and extra large blast furnace hot air main pipes, furnace body connecting pipes and other large-diameter pipelines.

2. * * High end temperature resistant and corrosion-resistant materials are optional**
Bellows can be made of high-grade alloy materials such as AISI321, AISI316L, Incoloy825, etc. AISI321 has good high-temperature creep resistance performance; AISI316L is resistant to intergranular corrosion; Incoloy825 nickel based alloy is resistant to high temperature, oxidation, and sulfide corrosion, and is suitable for complex high-temperature flue gas media in blast furnaces.

3. * * Ultra high temperature resistance performance * *: The maximum operating temperature can reach 1600 ℃, and it can withstand the intense cold and hot cycle alternating working conditions of the blast furnace hot air system. It is resistant to high temperature oxidation and is not easy to fail under long-term high temperature.

4. Wide adaptability range for pressure conditions: The design pressure range is 0.2MPa~1.0MPa, which meets the selection of different pressure levels of blast furnace hot air pipelines.

5. Strong displacement compensation capability: It can simultaneously absorb axial, lateral, and angular combined displacements, release the huge stress generated by pipeline thermal expansion, and avoid cracking of furnace body and pipeline welds.

6. * * Resistant to dust erosion and high fatigue life * *: Optimized for high-temperature flue gas environments containing dust in blast furnaces, the multi-layer structure of corrugated pipes enhances fatigue performance, resists flue gas erosion and particle wear, and is suitable for long-term uninterrupted production in blast furnaces.

7. * * Safety limit protection * *: Equipped with a limit rod structure as a safety protection device, it can limit the maximum deformation of the expansion joint under extreme working conditions, prevent the bellows from stretching and damaging, and improve the operational safety of the entire blast furnace system.

Technical Parameters
-Product Name: High Temperature Expansion Joint for Blast Furnace System
-Nominal diameter: DN1000mm to DN8000mm
-Optional materials: AISI321, AISI316L, Incoloy825
-Design pressure: 0.2MPa to 1.0MPa
-Maximum operating temperature: ≤ 1600 ℃
-Applicable media: high-temperature hot air, dusty high-temperature flue gas

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.