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Desulfurization pumps play a crucial role in various industrial processes, such as power plants, refineries, and chemical plants. When ordering a desulfurization pump, it is essential to ask the right questions to ensure you get the most suitable pump for your specific needs. Here are some key questions to ask when ordering a desulfurization pump:
**1. What is the capacity of the desulfurization pump?**.
- It is important to know the capacity of the pump to ensure that it can meet the flow rate required for your application.
- Ensure that the pump's capacity matches the demands of your desulfurization process to avoid any operational issues.
**2. What is the head pressure of the desulfurization pump?**.
- The head pressure of a pump refers to the vertical distance that the pump can lift water or other fluids.
- Knowing the head pressure of the pump is crucial to determine if it can provide sufficient pressure to meet the requirements of your desulfurization system.
**3. What type of materials is the desulfurization pump made of?**.
- It is essential to inquire about the materials used in the construction of the pump, especially in the context of desulfurization processes.
- Desulfurization pumps often come into contact with corrosive chemicals, so selecting a pump made of corrosion-resistant materials such as stainless steel is crucial.
**4. What is the power source for the desulfurization pump?**.
- Understanding the power source requirements of the pump is important to ensure compatibility with your facility's power supply.
- Consider factors such as voltage, phase, and frequency to determine if the pump can be easily integrated into your existing system.
**5. What is the maintenance schedule for the desulfurization pump?**.
- Inquire about the maintenance requirements and schedule for the pump to ensure optimal performance and longevity.
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- Regular maintenance is essential to prevent breakdowns and ensure that the pump operates efficiently in desulfurization applications.
**6. Does the desulfurization pump come with any warranties or guarantees?**.
- Ask about the warranty or guarantee offered by the pump manufacturer to protect your investment.
- Ensure that the pump is backed by a warranty that covers any potential defects or issues that may arise during operation.
**7. What is the delivery time for the desulfurization pump?**.
- Inquire about the delivery time for the pump to plan accordingly and avoid any delays in your desulfurization process.
- Consider factors such as lead time, shipping logistics, and installation timelines when ordering a desulfurization pump.
**8. Can the desulfurization pump be customized to meet specific requirements?**.
- Ask if the pump can be customized to suit your specific desulfurization needs, such as flow rates, pressure requirements, and material compatibility.
- Customizing the pump can ensure optimal performance and efficiency in your desulfurization system.
In conclusion, asking the right questions when ordering a desulfurization pump is essential to ensure that you get a pump that meets your specific requirements and delivers reliable performance in your industrial processes. By considering factors such as capacity, head pressure, materials, power source, maintenance, warranties, delivery time, and customization options, you can make an informed decision and select the best desulfurization pump for your application.
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A cement factory in Texas was among the first in the U.S. to install wet flue gas scrubbers in order to reduce the sulfur dioxide emissions. This is a demanding application for pumps because the gypsum slurry that scrubs the gas is highly abrasive and corrosive. Special pump systems with housings and impellers made of mineral cast proved to be an ideal solution for this specific application. Wet flue gas desulfurization scrubber systems can be vital components in various industries due to strict environmental regulations of those applications. First applications were coal-fired power plants and waste incineration plants. Today, other industries use wet scrubbers in their day-to-day operations as well to scrub flue gas emissions from burners that use coal as a fuel source.
Image 1. Several pumps with housings and impellers made from mineral cast are responsible for the transport of corrosive limestone slurry. (Images courtesy of Deuchting Pumps North America)Image 1. Several pumps with housings and impellers made from mineral cast are responsible for the transport of corrosive limestone slurry. (Images courtesy of Deuchting Pumps North America)
Image 2. Smaller pump in the cement plants scrubber system
Image 3. Horizontal single-stage centrifugal pump in back pullout design
The scrubbers remove toxins from coal- fired flue gas streams in the process. This is accomplished by spraying a mixture of limestone slurry over incoming flue gas. This creates a chemical reaction that removes or scrubs the toxins from the flue gas. Once the limestone slurry reacts with the incoming flue gas, it is converted to a gypsum slurry. The gypsum is then dewatered and can be sold to end users for use in various industries. Concrete manufacturers are able to use the dewatered gypsum in the concrete production process.The selection of pumps for this application is a crucial task. Due to its significant corrosive and abrasive characteristics, gypsum slurry is a very difficult medium to handle. An American cement plant with a yearly capacity of about 2 million metric tons has found a good solution for that issue when it installed the first of two scrubber systems in . The housings of the eight pumps in the limestone slurry cycle are not made from metal materials, but from a special material that was designed specifically for extremely harsh conditions. This material is a mixture of silicon carbide (SiC) and epoxy resin that is poured into precision molds and heat cured to form the pump components. The material must be machined with diamond tools due to it exhibiting a hardness close to that of diamonds. The material is completely impervious to corrosion and exhibits extreme abrasion resistance given its metallic-free composition and high hardness value. The scrubber recycle pumps in this plant have operated at a flow rate of 1,310 cubic meters per hour (m3/h), 21.1 meters (m) of head and 630 revolutions per minute (rpm) for nearly 20 years, requiring minimum attention and service. Of course, the mechanical seals were exchanged from time to time. Apart from that, four impellers, one casing cover and some minor components were replaced. An additional 24 pumps are installed in the second scrubber system and other applications in the plant.This installation is a true testament to the superior performance of these pumps in the harshest environments. It shows why this type of pump is installed not only in this cement factory, but also in wet flue gas desulfurization systems in multiple power plants and other industrial facilities all across the world. The pumps are not restricted to flue gas desulfurization. They are also used in processes such as ammonia phosphate and titanium dioxide (TiO2) pigment production, salt solution mining, sugar beet processing and sea water desalination.
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