Product Description
Project Introduction
Zero Emission Status:
Blast furnace gas is a by-product of steel enterprises in the production process and is an important secondary energy source for these enterprises. In order to conserve energy, reduce energy consumption, and minimize environmental pollution, it is necessary to fully utilize the gas resources.
The blast furnace gas desorption tower is mainly used to release excess blast furnace gas and stabilize the pressure of the gas pipeline network, thereby enabling users to efficiently utilize blast furnace gas and ensure the safe operation of the gas pipeline network. The purpose of this project is to address gas leakage issues during non-desorption processes and maximize energy savings.
Process Overview:
The blast furnace gas desorption system serves both gas balancing and pressure regulation functions. Gas regulation is achieved by setting the pressure of the regulating valve on the desorption ignition tower to maintain stable gas pipeline pressure. However, the regulating valve and desorption system suffer from the following defects:
2.1 The structure of the regulating valve results in a certain amount of leakage even when it is indicated as fully closed at 100%.
2.2 In actual production, the regulating valve is not fully closed at 100%, but rather maintains an opening of approximately 5% to prevent malfunction due to prolonged inactivity. This practical usage condition leads to gas leakage from the desorption device even when no gas is being desorbed.
2.3 Considering the safety hazards and energy waste associated with the leakage of blast furnace gas from the desorption system, our company has developed a patented technology for zero-emission leakage of blast furnace gas. This patented technology resolves the issue of gas leakage from the original desorption device of blast furnace gas in steel enterprises during non-desorption processes.
Engineering Performance
01 Jingding Heavy Industry Co., Ltd. Blast Furnace Gas Zero Emission Transformation Project.
Project Overview: A new blast furnace gas zero emission leakage system is constructed to address the issue of gas leakage from the original desorption device of blast furnace gas in steel enterprises during non-desorption processes.
Transformation Content: The original blast furnace gas that required desorption is redirected to the newly added blast furnace gas zero emission leakage device after the regulating valve. This device can flexibly adjust the desorption pressure according to changes in low-pressure gas network pressure. The desorption pressure of blast furnace gas can be set at four fixed levels: 18kPa, 20kPa, 22kPa, and 25kPa, with the desorption pressure regulated by an overflow pipeline adjusting the water seal. In case of emergency desorption, all water inside the blast furnace gas zero emission leakage device is rapidly drained through custom drainage valves. A water tank is installed below the blast furnace gas zero emission leakage device, connected to the industrial clean water pipeline in the factory area with a diameter of no less than DN100, serving as water replenishment for the tank. The liquid level inside the device is maintained by controlling the submersible pump's operation. The drainage from the blast furnace gas zero emission leakage device is directed to a newly constructed water storage tank, where the water is recycled. The zero emission leakage device undergoes thermal insulation treatment and is equipped with instruments such as liquid level and temperature sensors, automatic water replenishment, and automatic drainage. Remote interlocking control is achievable through a supervisory control system.
Basic Process Parameters: Main Parameters of Blast Furnace Gas:
- ow-pressure gas network pressure: 8~18 kPa
- Gas temperature: <80ºC
Parameters and Requirements of Energy Media:
- Nitrogen Gas: 0.5 MPa
- Industrial Water: DN100 ≥ 0.2 MPa
- Electrical: Low-voltage power supply voltage level: AC: 380V, 50HZ ±2%
02 Hebei Puyang Iron and Steel Co., Ltd. Blast Furnace Gas Zero Emission Transformation Project
Project Overview:
A new blast furnace gas zero emission leakage system is constructed to address the issue of gas leakage from the original desorption device of blast furnace gas in steel enterprises during non-desorption processes.
Transformation Content:
The original blast furnace gas that required desorption is redirected to the newly added blast furnace gas zero emission leakage device after the regulating valve. This device can flexibly adjust the desorption pressure according to changes in low-pressure gas network pressure. In case of emergency desorption, all water inside the blast furnace gas zero emission leakage device is rapidly drained through custom drainage valves. A water tank is installed below the blast furnace gas zero emission leakage device, connected to the industrial clean water pipeline in the factory area with a diameter of no less than DN100, serving as water replenishment for the tank. The liquid level inside the device is maintained by controlling the operation of the submersible pump. The drainage from the blast furnace gas zero emission leakage device is directed to a newly constructed water storage tank, where the water is recycled. The zero emission leakage device undergoes thermal insulation treatment. Instruments such as liquid level and temperature sensors are installed inside the device for automatic water replenishment and drainage. Remote interlocking control is achievable through a supervisory control system.
Basic Process Parameters: Main Parameters of Blast Furnace Gas:
- Low-pressure gas network pressure: 8~23 kPa
- Gas temperature: <80ºC
- Desorption Method: Open desorption at 25kPa, close at 23kPa.
Parameters and Requirements of Energy Media:
- Nitrogen Gas: 0.5 MPa
- Industrial Water: DN100 ≥ 0.2 MPa
- Electrical: Low-voltage power supply voltage level: AC: 380V, 50HZ ±2%
03 Guotang Iron and Steel Co., Ltd. Ironmaking Project Blast Furnace Gas Zero Emission Device
Project Overview:
The blast furnace gas desorption tower is mainly used to release excess blast furnace gas and stabilize the gas pipeline network pressure, thereby enabling users to efficiently utilize blast furnace gas and ensure the safe operation of the gas pipeline network. The purpose of this project is to address gas leakage issues during non-desorption processes, thereby maximizing energy savings.
Transformation Content:
The original blast furnace gas that required desorption is redirected to the newly added blast furnace gas zero emission leakage device after the regulating valve. This device can flexibly adjust the desorption pressure according to changes in low-pressure gas network pressure. The desorption pressure of blast furnace gas can be set at three fixed levels: 16kPa, 18kPa, and 20kPa, with the desorption pressure regulated by an overflow pipeline adjusting the water seal. In case of emergency desorption, all water inside the blast furnace gas zero emission leakage device is rapidly drained through custom drainage valves. A water tank is installed below the blast furnace gas zero emission leakage device, connected to the industrial clean water pipeline in the factory area with a diameter of no less than DN100, serving as water replenishment for the tank. The liquid level inside the device is maintained by controlling the operation of the submersible pump. The drainage from the blast furnace gas zero emission leakage device is directed to a newly constructed water storage tank, where the water is recycled. The zero emission leakage device undergoes thermal insulation treatment. Instruments such as liquid level and temperature sensors are installed inside the device for automatic water replenishment and drainage. Remote interlocking control is achievable through a supervisory control system.
The desorption pipeline is 1400mm in diameter, consisting of three desorption pipes. The inlet point is located at any point of the 1400mm gas pipeline after the regulating valve, with two holes drilled in each pipe. After being connected to the blast furnace gas zero emission leakage device, the pipes are reintegrated into the desorption pipes. A new platform and civil foundation are constructed for the blast furnace gas zero emission leakage device, located near the existing regulating valve platform. New pipelines are drawn from the original pipeline after the regulating valve to the device, then processed and led to the desorption tower, with the original pipeline blind plate sealed.
Basic Process Parameters: Main Parameters of Blast Furnace Gas:
- Low-pressure gas network pressure: 10~20 kPa
- Gas temperature: < 80ºC
Parameters and Requirements of Energy Media:
- Nitrogen Gas: 0.5 MPa
- Industrial Water: DN100 ≥ 0.2 MPa
- Electrical: Low-voltage power supply voltage level: AC: 380V, 50HZ ±2%
04 Hebei Taihang Iron and Steel Group Co., Ltd. Blast Furnace Gas Zero Emission Transformation Project
Project Overview:
Considering the safety hazards and energy waste associated with the leakage of blast furnace gas from the desorption system, our company has developed patented technology for a blast furnace gas zero emission leakage system. This patented technology resolves the issue of gas leakage from the original desorption device of blast furnace gas in steel enterprises during non-desorption processes.
Transformation Content:
The original blast furnace gas pipeline that required desorption is redirected to the newly added blast furnace gas zero emission leakage device after the regulating valve. This device can automatically and flexibly adjust the desorption pressure according to changes in low-pressure gas network pressure. The desorption pressure of blast furnace gas can be set at four fixed levels: 11kPa, 13kPa, 14kPa, and 16kPa, with the desorption pressure regulated by an overflow pipeline adjusting the water seal. In case of emergency desorption, all water inside the blast furnace gas zero emission leakage device is rapidly drained through custom drainage valves. A water tank is installed below the blast furnace gas zero emission leakage device, connected to the industrial clean water pipeline in the factory area with a diameter of no less than DN100, serving as water replenishment for the tank. The liquid level inside the device is maintained by controlling the operation of the submersible pump. The drainage from the blast furnace gas zero emission leakage device is directed to a newly constructed water storage tank, where the water is recycled. The zero emission leakage device undergoes thermal insulation treatment. Instruments such as liquid level and temperature sensors are installed inside the device for automatic water replenishment and drainage. Remote interlocking control is achievable through a supervisory control system.
The desorption pipeline is 1600mm in diameter, consisting of three main pipes, with the third desorption pipe mostly unused. Only the first and second desorption pipes are equipped with corresponding zero emission leakage devices. The inlet points of the devices are located at any point of the 1600mm gas pipeline after the regulating valve of the first and second desorption pipes, with two holes drilled in each pipe (four in total). These holes are connected to the respective zero emission leakage devices via 1600mm pipes, which then reintegrate into the original two independent desorption risers. A new platform and civil foundation are constructed for the blast furnace gas zero emission leakage devices, located near the existing regulating valve platform. New pipelines are drawn from the original pipeline after the regulating valve to the devices, then processed and led to the desorption tower. Blind plates are used to seal both ends of the two original desorption pipelines at the inlet and outlet of the zero emission leakage devices. Pipe perforation must be carried out during blast furnace idle or effective shutdown, and safety construction agreements must be signed according to the requirements of Party A. Relevant hazardous work permits must be obtained, and compliance with Party A's safety management is required. The construction of a single set of devices is estimated to require 12 hours for the jointing process.
Basic Process Parameters: Main Parameters of Blast Furnace Gas:
- Low-pressure gas network pressure: 11~12 kPa
- Desorption pressure is adjusted based on the gas holder capacity: lowered when the gas holder is full, raised when the gas holder is not full.
- Current desorption settings: Set to 13 for Pipe A and 14 for Pipe B.
- Gas temperature: < 80ºC
Parameters and Requirements of Energy Media:
- Nitrogen Gas: 0.5 MPa
- Industrial Water: DN100 ≥ 0.2 MPa
- Electrical: Low-voltage power supply voltage level: AC: 380V, 50HZ ±2%
Company Profile
Company Profile
Vision
With dees of rapid development and accumulation, China has been perfect and mature on technology and management in various industrial areas, shaping a complete processing manufacturing industry with competitive price, well known for its excellent skill, high efficiency and hardworking team with qualification for personnel dispatching.
At the time of economic globalization, it is our consistent target and objective to integrate and export all kinds of technology, management mode, engineering project and manpower as per the actual requirement of our client With our own abundant technical strength, superior integration capability of technology and resources, well experienced of project implementation and management as basis and platform;
Let China go out to the world, and make the world know of China;
Professional
Professional technical and management team with abundant experience in the implementation of domestic and international projects; |
Responsive
Responsively and meticulously, translating your needs into complete solutions; |
Integration
Integrating various technologies and resources in China and fulfilling complementary advantages, by relying on professional teams; |
Motivation
Motivated to provide the optimal solution and quality products; |
Exceptional
Exceptional, delivery and,implementation of projects to meet, your expectations; |
Our Team
Professional technical team
Prime is staffed with professional import & export team skilled with the practice of import and export business, including sea freight packing, logistics organization, L/C review, cargo booking, and customs clearance, L/C negotiation, double authentication of shipment documents, etc.
All above personnel are well experienced in the execution of projects in Southeast Asia and Middle East.
Complete procurement mechanism
Our professional team of procurement offers strict management of supplier 's qualification inspection and selection, complete system of supplier listing, rating and elimination, to ensure the supplier is qualified and capable of implementing the project and supplied with product of high quality, and maintain a healthy and good condition of credibility, contract settlement and capital flow management.
Quality management system
Our complete quality management system , the process control covering from Scheme formulation , engineering technology, detailed design, to processing and manufacturing of equipment and material , ex-factory test and site erection and commissioning till it put into production, which through multi-level inspection, tour inspection, supervision and node control can ensure quality of the final product.
Well experienced
Executive team is abundant in experience of overseas project implementation with similar project working experiences, esp. experience in Southeast Asia, Middle East projects;
ISO System Certification
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