Industrial Energy Saving Retrofit

Blast Furnace Top Gas Recovery Ejector System

GP-YSQ Series

Dry cleaning ejector train that returns blast furnace top pressure equalisation and bleed-off gas to the clean gas main instead of flaring it.

Recovery method: Dry cleaning plus ejector return
Recovery time: Designed per furnace volume and cycle
Buffer: Buffer tank to stabilise bleed pressure
Control: Interlocked with furnace PLC

Data needed for an accurate quotation

Air or gas volume at operating temperature
Dust or pollutant type and concentration
Required outlet concentration or standard
Available plot size and power supply

Technical parameters

Grouped specification sheet

Technical parameters
Performance
Application	Top pressure equalisation and bleed-off gas during bank and downtime
Recovery route	Dry dust cleaning, then ejector return to the clean gas main
Recovery time	Calculated from furnace volume, bleed diameter and ejector capacity
Dust handling	Collected dust discharged dry through an airtight valve
Process equipment
Ejector	Steam or gas driven, sized per bleed flow
Buffer tank	Volume set to limit pressure shock on the clean gas network
Dry cleaning	Bag filter or cyclone plus filter stage
Valves	Dust tight dampers and slide gates with tight shut-off
Control and safety
Interlock	Linked to the blast furnace main control system
Monitoring	CO, pressure, temperature and oxygen analysers
Protection	Explosion venting and inerting points per site standard

Values shown are the standard manufacturing range. Final parameters are calculated from your gas volume, dust or pollutant load, temperature and the emission standard in force at your site.

Customisation options

Ejector and buffer volume sized from your furnace volume and bleed cycle
Material and lining selected for dust abrasiveness and gas temperature
Explosion protection and inerting arrangement per site safety standard
PLC integration with the existing furnace control system

Export packing & delivery

Ejector, buffer tank and filter shipped in sections with assembly marks
Valves, instruments and analysers packed in plywood cases
Process flow diagram, interlock list and commissioning sequence included

Drawings, assembly sequence, manual and test records are supplied with every shipment. On-site engineer dispatch can be arranged for complete system projects.

Read the export and installation checklist

Matched equipment

Systems usually supplied together

Collector, fan, discharge valve and conveying equipment designed as one train so interfaces and spares stay consistent.

Industrial Dust Collection

Long Bag Offline Pulse Baghouse Dust Collector

GP-LCM / GP-PPC Series

Offline pulse jet baghouse for high dust load flue gas from sintering, blast furnace cast house, cement grinding and boiler tails.

Air volume: 10,000 - 600,000 m³/h
Filter area: 200 - 12,000 m²
Outlet concentration: ≤ 10 mg/Nm³ (project dependent)
Operating temperature: ≤ 260 °C with high-temp media

View details Get a quote

Industrial Dust Collection

Industrial Centrifugal Induced Draft Fan

GP-4-73 / GP-9-19 Series

High pressure and high temperature centrifugal fans for dust collection, flue gas extraction and material conveying systems.

Air volume: 5,000 - 400,000 m³/h
Total pressure: 1,000 - 12,000 Pa
Motor power: 7.5 - 1,250 kW
Gas temperature: ≤ 450 °C with hot gas design

View details Get a quote

Bulk Material Conveying

Duct Dampers, Slide Gate & Double Flap Valves

GP-VF / GP-CF / GP-DM Series

Butterfly and louver dampers, manual or pneumatic slide gates and double flap discharge valves for duct balancing and airtight hopper discharge.

Size range: DN200 - DN3000, square and round
Drive: Manual, pneumatic or electric
Temperature: ≤ 450 °C depending on seal
Function: Balancing, isolation, airtight discharge

View details Get a quote

Industrial Energy Saving Retrofit

Fan & Pump VFD Energy Saving Retrofit

GP-VFD Series

Variable frequency drive retrofit for large induced draft fans, blowers and water pumps with throttling losses removed.

Motor power: 15 - 2,500 kW
Voltage: 380 V / 690 V / 3 kV / 6 kV / 10 kV
Typical saving: 15 - 40% depending on load profile
Control: Local, remote, DCS or pressure/flow closed loop

View details Get a quote

Selection notes for this equipment

All articles

Energy Saving2026-05-086 min read

Fan and Pump VFD Retrofit: How the Saving Is Actually Calculated

Affinity laws, load profile measurement, harmonic limits and the metering protocol used to verify a retrofit before and after commissioning.

Inquiry for Blast Furnace Top Gas Recovery Ejector System

The product name and model are attached automatically. Add your gas volume, dust or pollutant data and required outlet value.

Name *

Company

Email *

WhatsApp / Phone

Country / Region

Industry

Equipment type *

Plant condition / requirement

I agree that my data is used to answer this inquiry, as described in the Privacy Policy.

Prefer a direct channel? Email szamtx@163.com or scan the WhatsApp QR code in the floating button.

More in Industrial Energy Saving Retrofit

Back to product centre

Tell us your plant condition, we will size the system

Send air volume, dust or gas data, temperature and available space. Our engineers reply with a configuration proposal and a budget quotation within 1 working day.

Request a Quote WhatsApp QR code