Roots blower is widely used in gasification field, mainly including the following aspects:
Gasification reactor ventilation: during coal gasification, coal and other solid fuels react with oxygen under high temperature and pressure to generate synthetic gas. Roots blower can be used in the ventilation system of the gasification reactor to promote the reaction by providing sufficient oxygen, and at the same time, transmit the generated synthetic gas to the subsequent processing steps.
Pulverized coal transportation: pulverized coal is used as fuel in the process of coal gasification, and pneumatic transportation is usually used for the transportation of pulverized coal. Roots blower can produce high pressure difference to transport pulverized coal from storage bin or pulverizer to gasification reactor.
Gangue transportation: Gangues generated during gasification need to be cleaned and treated in time to maintain the normal operation of the equipment. Roots blower can be used for conveying and discharging coal gangue to ensure continuous gasification process.
Product gas compression: the synthetic gas generated in the gasification process needs to be further processed and utilized, while some processing processes need to compress the gas. Roots blower has high differential pressure capacity, which can compress the synthetic gas to the required process pressure to meet the requirements of subsequent treatment.
Ventilation of environmental protection equipment: some harmful gases and dust will be produced during gasification, which needs to be treated and purified by environmental protection equipment. Roots blower can be used in the ventilation system of environmental protection equipment to extract waste gas and send it to the purification device for treatment, so as to ensure that the emission meets the environmental protection requirements.
The gasification roots blower industry mainly includes the following industries:
Coal gasification process: gasification fan plays an important role in coal gasification process. Coal gasification is the process of converting coal and other solid fuels into synthetic gas (a combustible gas). The gasification fan helps the coal gasification reaction by providing enough oxygen, and transmits the generated synthesis gas to the subsequent processing steps.
Chemical industry: gasification fan is widely used in chemical industry. For example, in the process of ammonia synthesis, the gasification fan is used to transport hydrogen and nitrogen to the synthesis reactor. In addition, the gasification fan can also be used for the ventilation system in the chemical plant to ensure the normal operation and safety inside the plant.
Iron and steel industry: In the process of iron and steel smelting, the gasification fan is used to supply combustion air for the blast furnace to burn ores and fuels to generate high-temperature slag and molten iron. The gasification fan can provide enough oxygen for the blast furnace to maintain the normal pressure and airflow required during smelting.
Petrochemical industry: gasification fan plays a key role in petrochemical industry. They are used for compression, circulation and ventilation in catalytic cracking unit, oil refining unit and other processes. The gasification fan can provide stable airflow for these processes, ensuring the operating efficiency of equipment and product quality.
Power plant: In power plants, gasification fans are commonly used in the combustion process of gas turbines and coal-fired power plants to deliver the air needed for fuel. The gasification fan can provide high pressure and high flow airflow to ensure the effective combustion process and improve the power generation efficiency.
In addition to the above mentioned coal gasification process, chemical industry, steel industry, petrochemical industry and power plant, Roots blower has the following applications in the gasification field: 1 Building materials industry: During the production of building materials, gasification fans can be used for the combustion and ventilation system of kilns to provide enough air to maintain the normal temperature and atmosphere inside kilns, so as to ensure the quality and output of building materials. 2. Agriculture: In agriculture, gasification fan can be used for ventilation and gas exchange during fertilizer manufacturing and fermentation to provide necessary oxygen and remove excess carbon dioxide, so as to promote normal fermentation and decomposition of fertilizer and improve agricultural production efficiency. 3. Environmental protection industry: In the process of environmental protection treatment, the gasification fan can be used for the ventilation system of waste gas treatment and purification device to extract harmful gas and dust and transport them to the purification device for treatment, so as to reduce environmental pollution and protect environmental quality. To sum up, Roots blower is widely used in gasification field, involving many industries and fields. They play an important role in coal gasification process, chemical industry, steel industry, petrochemical industry, power plant, building materials industry, agriculture and environmental protection industry, providing necessary oxygen, compressed and transported gas for the smooth progress of gasification process, while ensuring the safety, efficiency and environmental protection performance of equipment.
Model parameters of gasification roots blower:
The model and parameters of the gasification fan are determined according to the specific use needs. The common specifications and parameters of the gasification fan are as follows:
Pressure: gasification fan generally needs to provide higher pressure to meet the demand of gas transmission and compression. The common pressure range is 1000-3000mmAq.
Flow: the flow of the gasification fan needs to match the required gas delivery capacity. The common flow range is 1000-50000 m ³/ h。
Motor power: the motor power of the gasification fan is related to the service conditions, generally between 5-300 kW.
Rotating speed: the rotating speed of gasification fan is generally high, and the common rotating speed range is 2900-5900 rpm.
Noise: the noise level of the gasification fan shall comply with relevant national standards, and the common noise level is ≤ 85 dB (A).
Explosion proof grade: the gasification fan needs to have an explosion proof grade in places prone to explosion such as coal gasification to ensure the safety performance of the equipment. The common explosion-proof grade is Exd Ⅱ BT4Gb.
Material: some materials of gasification fan need to be resistant to high temperature and corrosion to adapt to use under different working conditions. Common materials include carbon steel, stainless steel, superalloy, etc.
