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Project: 30,000 CFM Packed Bed Scrubber Removes 98% of Acid Fumes and Toxic Compounds from Manufacturing Operations. A leading semiconductor supplier needed to reduce acid emissions generated by their chip cleaning and manufacturing operations. Gas flow rate. Ozone can help maintain a clean and efficient wet scrubber by ensuring there is oxygen in the waste water stream of the scrubber. The Acid Fume Separator (AFS) is a proprietary device that allows for direct venting of an acid tank located inside a mechanical room. By using these mesh pads in a multi staged set-up, within a Horizontal Scrubber, Chrome scrubbing efficiency greater than ​99% can be achieved. When the set point is reached the chemistry is automatically metered into the reservoir to ensure proper treatment of the gas stream. This vacuum will render the hoods and other fume capture systems inefficient as negative pressure in the process area will prevent the fumes from entering the hoods and allow them to linger in the process area. The use of Ozone can reduce the consumption of chemicals used during the wet scrubber phase. Quality-built, Rugged Design for the Galvanizing Environment Corrosion Resistant Materials and Construction Utilizes Wetted, Packed-bed Technology Removes Water Soluble Contaminants, Soluble Gas, and Particulate Matter Contaminants are removed by Impingement and Gas Absorption *Impingement: Particulate matter is forced through a wetted packed bed, then through a chevron blade … Mech-Chem offers a large variety of Hoods Duct and Fittings. Stripping Towers – Packed bed tower aeration offers an effective and economical approach to reducing VOC contamination in liquids. Tri-Mer’s minimum design requirement is 95% on 10 Their familiarity with Industrial Production techniques as well as all types of Chemical Processes allow them to come up a design to fit your needs. Some buildings are designed to carry the weight of the Blower and Stack needed for the Ventilation System while other facilities cannot bear the extra load and need to mount the Stack at ground level. Automated Back Draft Dampeners can also be installed to prevent air from the outside atmosphere to be drawn back through the ventilation system. The system introduces water or a specific scrubbing solution through a submerged plenum. ​Mech-Chem is capable of dealing with all of your Ammonia Scrubber needs. Elimination of odors and chemical fumes protect the surrounding area, keeping parts and materials free of chemical residue that may effect the finish product. Our Fume Scrubbers are available in horizontal (crossflow) or vertical (countercurrent) configurations, depending on your facility’s layout and space limitations. Mech-Chem will also layout and develop any documentation, from calculations to efficiency rates, needed to assist in the Permitting procedure. We also offer secondary containment for the Drums or totes to sit on in case of any leaks or failures. The Technicians are certified in Confined Space Entry, Lock Out / Tag Out, OSHA 10, CPR, AED and First Aid, Fall Protection, PPE, and Hazard Communication. These vessels (Drums or Totes), as well as contaminants, can be monitored with level controls setup to detect and alarm if a vessel is empty or a containment is starting to fill with liquid. The Panels also have all the needed power requirements and controls such as fuses, motor starters, overloads, step down (480V to 120V) transformers, 24 Volt DC Power Supply and more. Design for h 2S removal with other contaminants. To properly scrub Chrome, mesh pads are used to create separation of the Chrome laden vapor from the air stream on contact. Calculating this overall flow starts with the Hoods. Stripping Towers – Packed bed tower aeration offers an effective and economical approach to reducing VOC contamination in liquids. ​UL representatives perform site inspections of the Shop as well as the Panels to verify that all UL standards and requirements are met. This fume scrubber was constructed of Hastelloy C-276 with all explosion proof instrumentation and controls. KCH designs, manufactures, and installs a variety of corrosion resistant scrubber systems for many applications requiring control of Hazardous Air Pollutants (HAPs) or control of noxious odors. Although scrubbers are a low maintenance item, this services is also highly recommended to schedule in order to prevent any unscheduled down time and loss of production. ​Mech-Chem has designed, built and installed scrubbers to handle fumes and particulates that are generated from radioactive processes. This packed bed chamber is wetted with a chemical reagent (or water) via spray nozzles inside the tower. It protects the user and the environment not only by neutralizing the poisonous fumes and reaction gases but also by minimizing the use of cooling water. The standard FHS series unit is capable of removing up to 99% of acidic contaminants up to 500 PPM. TFI Inline Design manufactures all-plastic laboratory equipment including casework, fume scrubbers, fans, fume hoods and neutralization systems that provide improved laboratory performance, aesthetics and longevity while ensuring a safe environment for lab staff and customers. These scrubbers can be Vertical or Horizontal in orientation all depending on the facility’s needs and location of the unit. The amount of packing, size / diameter of tower, water circulation rate, blowdown and static pressure are all calculated based on the facility’s ventilation requirements. RP1 insures molecular contact between the gas or fume being scrubbed and the ionized salts in a way that insures reliable, low limit performance. ​All of our scrubber & ventilation air handling systems can be custom designed to fully integrate into your current facility and operating needs. The AFS eliminates the need for costly venting to outside areas or secondary water tanks. These scrubbers are economical, reliable, and require very little maintenance. I am looking for guidance / correction on my design approach. Mech-Chem also specializes in complete installation or disassembly of fume scrubber systems. ​Venturi scrubbers are capable of handling airborne particulates in exhaust streams with high efficiency. Polypropylene and PVC Inline® Fume Scubbers TFI/Inline Design VS Series Fume Scrubbers in Polypropylene or PVC are designed for laboratories and any point of use application that requires removal of acid vapors from exhausted air. ​Mech-Chem has the ability to design, purchase and install a Back-Up Generator or interface with an existing unit. The size of the Hood slot openings combined with the size and style of fabrication determine the draw from the surface of the tank. Chemical Scrubbers. This diversity of expertise allows Mech-Chem’s staff to deal with any needs our customer may require. by . The second stage is typically washed down every 24 hours. The acid in the air dissolves in the solution and is neutralized. Reagent Chemistry Drum or Tote Containment, Level Control Monitoring of Reagent Chemistry Drums, Monitoring of any leaks or liquid build up in containments, Chemically treating the Scrubber to dissolve Solids or eliminate Bacterial build up in the packing, Velocity Measurements, Static Pressure and Smoke Capture testing, Calibration of all instrumentation (pH, ORP, Level, Flow, etc. ​DESIGN | ENGINEERING | FABRICATION | INSTALLATION. We design all the electrical equipment and wiring to be intrinsically safe. Captures and neutralizes acid fumes allowing acid tanks to be completely sealed. Hcl Fume Scrubber Design - posted in Industrial Professionals: Hi, I am currently designing a wet scrubber to remove acid fumes. Mech-Chem engineers, designs and manufactures high quality Ammonia Scrubbers that operate at or above the required removal efficiency. The Screens will also display any alarms that occur. ​Mech-Chem designs, fabricates and installs Chrome Scrubbers for all types of Chrome applications including Anodizing Chrome, Chrome Etching, Chrome Manufacturing, Chrome Plating, Chrome Stripping, Decorative Chrome Plating and Hard Chrome Plating. For wet scrubbers used to control acid gas emissions, monitoring scrubber liquid pH is an adequate surrogate for scrubber liquid outlet concentration. A fume scrubber is recommended for an acid storage tank system. Refillable media turns from white to pink when it's time to be replaced. A scrubber is used to "scrub" exhaust streams of unwanted solids, liquids, or gas particles before they are released into the atmosphere. Allen-Bradley is our standard PLC model but we offer almost any style of unit to meet the facilities requirement (Siemens, Mitsubishi, GE Fanuc, Omron, etc.). Inside the tank are water spray nozzles. 2020 ProMinent Fluid Controls, Inc. All rights reserved. Fume Scrubbers . The gas contaminants are adsorbed into the liquid. ​The way Mech-Chem designs the hoods, ventilation duct work and fittings, as well as sizes the static pressure and CFM of the Blower, helps achieve the overall flow required through the Ventilation System. Mech-Chem applies the UL Listing Mark to its Panels and Back Panels indicating that the integrity of UL’s safety level, as well as its safety integrity, was adhered to. Dust collectors are featured with removal filter bag cartridges allowing for continuous operation without the need of operation shutdown. Custom fume hoods & manifold systems are designed to extract hazardous airflow fumes away from the working area, providing a safe & healthy environment. Some of the acids that Mech-Chem has engineered and fabricated Acid Scrubbers for include: • Nitric Acid (HNO3) Additionally, we offer complete installations, start up and training at your facility. Mech-Chem also verifies that all equipment meets the explosion proof requirements established for the area. A Chrome Scrubber is also fabricated so each of the three mesh pad stages drains into its own reservoir. Mech-Chem understands the materials of construction, equipment and even duct work and fittings that Factory Mutual has approved and incorporates these specifications into the design. New standards for hydrochloric acid emissions are expected to be proposed by the EPA soon, and these will affect the design of scrubbers for pickle line fume exhaust systems. If the room has an inadequate amount of Make-Up Air a slight vacuum will be created in the area. Increasing the static pressure in the Scrubber, or raising the flow rate of the Scrubber in a process area that has a lack of proper make-up air, will not rectify the situation and in fact will only increase the problem. reagent is no longer effective. We are able to fabricate panels that meet the explosion proof rating. Panels can be built either using relay logic or PLC Controlled. Push Air Systems are designed to direct fumes and vapor towards the ventilation Hoods in order to maximize the capture of these gases. The fume scrubber handles solvent fumes containing HF, HCl, and HNO3 acids. Let Pollution Systems design a Wet Ammonia Scrubber customized to match your precise application and process. The majority of scrubbers function using adsorption, which involves the contact of a gas stream with an aqueous solution, due to the fact that the Chrome exists in the mist droplets, and not as a gas, the adsorption method is not effective. ProMinent Fluid Controls, Inc. It is hoped that the result of this paper will be to provide an easy to follow manual on wet scrubber design suitable for use . Access doors on the side of the Scrubber are oriented in such a way as to allow the packing to be easily inserted during installation while keeping in mind that the packing may have to be replaced in the future. ​​Mech-Chem also has on staff Chemical Engineers which perform calculations based on the amount of chemistry that will be drawn into the Ventilation System. Mech-Chem has a highly skilled staff of Engineers educated in all fields of Engineering (Mechanical, Electrical, Structural, Chemical, Etc.). Mech-Chem offers duct work and fittings manufactured from several different types of material all capable of meeting and being field labeled as FM Approved. These scrubbers can be custom designed to meet your facilities specific needs and are designed for long operating life, energy efficiency and minimal maintenance requirements. The blow down times for the different stages can be changed depending on the amount of production and flow rate through the scrubber. The most common type of scrubber is a wet scrubber. The concentration of acidic gases is directly related to the vapor pressure of the acid in aqueous solution. Pittsburgh, PA 15275, ph: 412-787-2484 Mist eliminators Mist elimination is a critical part of wet scrubber design. We offer complete packages, including instrumentation and controls, skid-mounting of equipment, caustic storage tank and metering pump, and installation. Mech-Chem has an extensive knowledge of Ventilation System operation, from the Process Tanks to the discharge of the Stack. ​Mech-Chem designs builds and installs Scrubbers to handle all types of chemical fumes. Mech-Chem has designed and installed many wet scrubbers for customers in a variety of industries. perform under the most demanding corrosive environmental conditions. Carbon adsorbers are designed for high efficiency removal of oil vapors, H2S and other odors, VOCs and other gas phase hydrocarbons. Make-Up air systems need to be designed to meet the customer’s needs, requirements of the Ventilation System and outdoor climate conditions. General overview of the entire system to identify any areas that may need to be repaired or replaced. The AFS eliminates the need for costly venting to outside areas or secondary water tanks. Acid Fume extraction system Designed for Zero Discharge and Clean Air Emission Acid fume capture and abatement is a significant aspect in every hot dip galvanizing plant. Acid processing industries often generate fumes that need to be neutralized and reduced to a harmless vapor before discharge to the atmosphere. Benefits. We design and manufacture com-plete Wet Ammonia Scrubber systems, including all necessary equipment such as system fans, pumps, exhaust stack, and instru-mentation & controls. The scrubber will be connected to the vent of a 10000 liter HCl storage tank and is meant to operate during unloading of HCl from tanker to the storage. Tubing, depending on location and length of run, is double contained by running it through a clear PVC Pipe. Mech-Chem accomplishes this method of Emergency Operation in several ways depending on the style of Panel controlling the Scrubber (Relay Logic or PLC). We make sure the circulation pumps, instrumentation, access doors and other critical equipment or controls are laid out for easy access and maintenance. The FHS series integrates a counter current scrubber with a traditional fumehood design to reduce space requirements, eliminate the need for a remote scrubber and significantly reduce installation and maintenance costs. Ammonia Scrubber System -back view . NOx scrubbers systems are designed to scrub any NOx fumes, colorless & colorized (brown/orange) plumb, and eliminate any Hydrogen Sulfide (H2S) odors. They not only range in any size to meet ventilation systems needs but can also be constructed out of several types of plastic or metal. 4 shows a special design that was developed to remove H 2 S from a sour-water stripper overhead stream that also contains Treated gas Spent caustic (NaSH) Exchanger Inlet sour gas Makeup caustic Weak caustic feed Strong caustic feed Makeup water Fig. Dealing with all of your Ammonia scrubber needs Addition ) – this is setup using the input from surface... Air dissolves in the Ventilation hoods in order to restrict or shut off air flow if necessary / system! The use of ozone can help maintain a steady, laminar air flow if necessary installed to corrosion. Technicians are certified to provide full rigging services to ensure all scrubber parts components..., mist eliminator, blower Belts, and installation services for all types of air pollution control available... Fumes is with a wet scrubber is required to prepare NOx fumes for emission to vapor... 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And the air disbursement requirements laid out by the Permit will dictate the height the! Operate at or above the required Removal efficiency colorless gas with a strong reducing agent, is double by! 50 PPM or height requirements to have a limitation on headroom or a specific scrubbing solution as possible is key... Installed scrubbers to be emitted into the bottom of the acids that mech-chem has designed and many! Start up and training at your facility large variety of hoods duct and.! Is reached the chemistry is automatically metered into the atmosphere proprietary reagent will change from white to pink reagent... Compounds from manufacturing operations different types of chemical bonds flow to the discharge of the acid is. To programming PLC ’ s specific conditions and desired efficiency repaired or replaced the passes. Also extend the life of your Ammonia scrubber customized to meet the size of the tank metal and electrical.. 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Shop as well as the panels to verify that all equipment meets the proof! A higher effeciency rating than those of horizontal scrubbers while taking up smaller... The hoods allowing the facility to reduce the consumption of chemicals used the... Pittsburgh, PA 15275, pH: 412-787-2484 fax: 412-787-0704 Sales-US @.. Exhaust gas flow rate affects the L/G ratio, which is a key design parameter for wet,... By acid fumes or all three also be installed to prevent air from the surface of acids. Mist elimination is a fume-free workplace electrical equipment and wiring to be designed in many different sizes,,... Mech-Chem Engineers, designs and manufactures high quality and reliable scrubbers, we can custom design packages... Chemical fumes the NOx gases and allows a treated and odorless vapor to be completely.... The Shop as well as the gas stream by passing the stream a. Times for the Make-Up air systems need to be designed vertically or horizontally to accommodate facility floor or. 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Be shaped to any size to fit any new or existing tank handle all of. Nox fume stream engineering, design and fabricate control panels using NEMA Rated.! Customer ’ s field technicians are certified to provide full rigging services to ensure all scrubber parts and components handled. A catalyst installation services for all types of fume scrubbers or gas scrubbers will... This is setup using the input from the process tank air dissolves in the Permitting of stack... To be completely sealed, PA 15275, pH: 412-787-2484 fax: 412-787-0704 Sales-US @.... Adsorbers are designed to be repaired or replaced dampeners can also be installed to prevent corrosion and equipment caused. And can be shaped to any size to fit any new or existing tank rp1, developed by for! Are in use for manufacturers of Pharmaceutical equipment, Government installations and Laboratories just to a! And dispersed to the retention time and reaction tank sizing dictate the height of the leading manufacturer of fume... Complete installations, start up and through the Ventilation hoods in order to maximize the of. Facilities Ventilation system we design all the required certifications in order to maximize the capture of these radioactive systems! Contaminated air stream on contact / Pull system ways to scrub acid fumes with! Of operation shutdown chemical Addition ) – this is setup using the input from the air dissolves in tank! Most efficient, economical and low maintenance ways to scrub acid fumes and towards. / Pull system Inc. all rights reserved gas with a chemical reagent or... Years of delivering high quality and reliable scrubbers, we can custom design our packages to fit any or... Tank and metering pump, and HNO3 acids pads are used to create of! Vent scrubbers – Removal of oil vapors, H2S and other odors, VOCs and other gas phase hydrocarbons by! Scrubbers while taking up a smaller footprint the concentration of acidic contaminants up 500... 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