Despatch

Dubai, United Arab Emirates

Despatchs VOC Thermal Oxidizer was designed to eliminate 99% of Volatile Organic Compounds (VOCs) from gasses exhausted during the drying step of solar cell manufacturing.

The solar cell manufacturing process creates unwanted environmental pollutants which are byproducts of the drying process, and contain the non metallic ingredients found in the paste material such as ethanol, Texanol and terpineol. These pollutants can condense inside facility ductwork and create hazardous conditions. Destroying the VOCs using the Oxidizer eliminates the need to collect and dispose of this waste in a separate process. The exhaust exiting from the VOC Oxidizer contains only CO2 and water vapor.

In industries that emit VOCs and have established pollution control technology criteria, Thermal Oxidizers satisfy Best Available Control Technology (BACT), Maximum Available Control Technology (MACT) and Lowest Achievable Emission Rate (LAER).

The operation of the VOC Thermal Oxidizer is based on the principle of combustion which is the most commonly used method to control emissions of organic compounds and is used in a variety of industries. Combustion systems are simple and have very high destruction efficiency.

The VOC Thermal oxidizer maintains a temperature of 760C (1400F) to ensure destruction of all VOCs. The oxidation process releases heat and thereby contributes to maintaining the temperature of the oxidizer

Standard Features:

• Designed for high-speed, high-capacity solar cell manufacturing lines
• Eliminates VOCs as close to the point of origin as possible
• Electric (no need for gas or open flame, no NOx generation)
• Runs off of furnace power (with soft-start software)
• Best in class (99% or better) destruction of VOCs:
• Odors 100% elimination of odor
• 99%+ destruction of particulate matter and VOCs (Volatile Organic Compounds)
• Exhaust contains only CO2 and water vapor
• Meets legal requirements regarding the capture or destruction of VOCs including TA Luft regulation of Germany
• Eliminates need for handling and disposal of waste product collected in VOC condensers
• Fits on top of CDF dryer - no additional footprint required

Options:

• Edge contact belt
• Belt stand-offs
• Wafer cooling (For 60C wafer or less -based on 508 cm/minute belt speed)
• Uninterruptible power supply
• Door switches
• CE compliance

CARBON FIBER OXIDATION OVEN TECHNOLOGYREINVENTING OXIDATION FOR NEXT GENERATION PERFORMANCE

Despatch invented the worlds leading carbon fiber oxidation technology which has become an industry standard. Now Despatch has reinvented the oxidation oven with revolutionary advancements to its pioneering center-to-ends technology.

Oxidation is the most critical process step in the production of carbon fiber. It consumes the most energy, has the largest factory footprint, and is the largest capital investment in a carbon fiber line. Any improvement to this step will have a huge impact on the cost and quality of carbon fiber.

Despatchs next generation Split-Zone Oxidation Oven with Novariance Technology allows you to aggressively push the oxidation rate, reduce oxidation cycle time, and lower the cost of high quality oxidized fiber.

Split zone control (patent-pending) provides two discrete thermal profiles for the upper and lower half of the chamber. Separate plug fans and controls allow you to increase the temperature in the upper half of the oven by several degrees, advancing the rate of oxidation of the fiber.Because each oven is now split into two zones, the number of ovens required to properly oxidize the fiber can potentially be reduced. This results in a needle-moving reduction of greater than 50% in annual cost of operation.

Novariance Technology(patent-pending) provides extremely uniform airflow across the entire width of the tow-band and throughout the process chamber. Patent-pending orifice-plate nozzle structures eliminate the side-to-side and directional variance inherent in conventional nozzle designs. Airflow is also directed into the gap between the center supply plenums which eliminates an area of low to no airflow. Airflow into the gap of the center plenum can be directed as needed to suit the precursor material.

The elimination of variance along with split-zone control allows you to push the temperature in the oven, reducing oxidation cycle time by 25% or more.

Customer Tests Confirm Reduced Cycle Times - Read the White Paper

The Split-Zone oven was designed to dramatically reduce maintenance requirements:

• A sophisticated Pressure Balance System minimizes fugitive emissions to the plant, maintains a stable internal process environment and minimizes energy loss from cold air ingress.
• Improved heat exchangers in the Split-Zone oven can drastically reduce silica oxide build-up that can affect uniformity.
• Any maintenance that is still required can all be done from one side of the oven with zero disturbances to the fiber. Removable nozzles in the supply and return receivers mean you never have to enter the chamber for cleaning.

The Split-Zone oven integrates additional energy saving features and productivity improvements:

• Hybrid Heating allows you to operate the oven with low cost gas with the assurance of an electrical backup.
• Patented adjustable end louvers automatically adjust to significantly reduce heat loss and open for fast and easy threading.
• Rapid cool-down and heat-up capability minimizes time to restart production.

With these revolutionary design improvements, oxidation will no longer limit process perfection. With reduced variability, the Split-Zone Oxidation oven will deliver higher yields, reduced cycle times and significant cost savings per kilogram of material output.

Unsurpassed cleaning, high-efficiency drying, low cost of ownership, ease of maintenance, and robust design all come together in Electrovert Industrial cleaning systems.

The Electrovert Aquastorm series precision cleaning systems are considered the industrys best for performance, quality construction, and life cycle durability. They are designed to provide superior cleaning and drying performance, complete cleaning process flexibility and monitoring, all with unparalleled reliability. Our goal is to provide customers with a range of cleaners that will exceed their cleaning and drying expectations.

The process flexibility and reliability of the Aquastorm has proven to be valuable in a variety of applications including:parts cleaning, precision medical washing, renew/rework, pallet/fixture cleaning, debris removal, surface preparation, electronics and semiconductor, lens cleaning.

Features and Benefits :

Direct dynamic jet technology delivers maximum energy for unsurpassed cleaning capability. Electroverts mixed spray technologies can be customized for any cleaning application. The Aquastorm series cleaners are compatible for any aqueous and semi-aqueous based chemistry cleaning process.

• Technology based fluid delivery system in the Wash and Rinse sections
• Efficient chemistry containment that saves you money
• Efficiently removes chemistry prior to rinse
• Designed to minimize chemistry usage
• Torrid Zone drying for complete drying performance and capability
• Integrated forced convection bake out
• Combination of high impact air and heat
• Windows based operating system for complete process control and traceability

The DriTech Dryer introduces a unique hybrid heating technology that addresses industry challenges associated with faster belt speeds, increased paste VOC concentration and thinner wafers, while providing state-of-the-art metallization drying performance.

The dryer is designed to decouple the VOC removal and binder burn-off for a more efficient drying process. Introducing five times the dilution air as conventional furnaces and internal insulation surface temperatures reduces tool contamination. While precise airflow management and a centrally located point-of-generation thermal oxidizer eliminates hazardous waste and facility contamination.

Unlike, solely convective or IR drying, which rely strictly on a belt speed and temperature relationship, DriTechs unique hybrid heating with Smart Tube technology provides a number of heat delivery mediums to efficiently and effectively remove solvent (VOC) from the paste while safely retaining the binder. The low temperature drying capability will ensure that each step in the drying process is separated with no compensation required downstream. Cell performance and efficiency is improved for current and next generation cell architectures and materials.

Maximum versatility for small laboratory spaces

If you need an oven for your laboratory, you are most likely looking for a small oven with the versatility to perform simple processes such as drying glassware to complex heating applications that are controlled and recorded. When a lab oven is used for testing materials, stability and repeatability are critical to ensure the oven is not skewing the results. Despatch laboratory ovens are known for their high performance with superior uniformity and consistent results.

Despatch lab ovens feature horizontal airflow which delivers uniform heating across all shelves, whereas most lab ovens utilize vertical airflow. A high-volume fan circulates air through perforated, stainless steel walls to create a constant horizontal airflow across all sections of the oven. These lab ovens provide controlled ramp rates with the capacity to rapidly bring the product up to the desired temperature for shorter cycle times

Despatch lab ovens are easy to clean with stainless steel interiors and smooth door surfaces. They feature sturdy, welded, double-wall construction, thick glass fiber insulation, and heavy-duty door gaskets. Each oven receives a thorough quality and performance test before it is shipped. Heating elements carry a five-year warranty.

Advanced control of your lab oven process.

Every Despatch lab oven except the LBB series feature the Protocol 3 microprocessor-based temperature and hi-limit controller with a large LCD display. The data-logging functionality enables reporting and analyzing, and data files can be exported via the controller's USB port. You can control the oven from your computer with optional software that also records operating information, including times, temperatures, set points, alarm conditions, and lot numbers. Data is written in an editable form that can be easily saved in an Excel format.

Clean process laboratory applications

For lab environment processes where minimal contamination is essential, an LCC or LCD Series lab oven offers the highest standard in HEPA filtration. Re-circulated airflow is 100% HEPA filtered for operation at ISO Class 5 (Class 100) or better within the oven chamber.

Typical applications for these ovens include die-bond curing and other semiconductor packaging processes, depyrogenation, sterilizing and drying for life sciences. These units are stackable to save valuable floor space and provide maximum ergonomic efficiency for operators.

This oven is available with inert Atmosphere. Nitrogen (or other inert gas) is injected into the chamber to lower the oxygen level to prevent oxidation of products. A water cooling coil is provided for rapid cooling.

Lab Ovens for Hazardous Areas and Flammable Solvents

Special design features are required when the oven and/or controls will be located in an area classified as hazardous. This classification refers specifically to an explosion hazard from the possible ignition of dust, vapors or gas in the area external to the oven, and is not limited just to volatiles within the oven chamber. Despatch Class A lab ovens are specially designed to meet NFPA 86 requirements. They include a pressure relief panel, purge timer and exhaust fan.

Laboratory ovens for material and reliability testing

Despatch's RBC Burn-In Oven offers maximum flexibility for small lot qualification testing, burn-in, reliability testing, and research and development. The stackable oven allows you to run concurrent tests utilizing different temperatures or different cycle times. They are ideal for qualification testing with small lots, because a new test may be started on the second chamber while the first test is still in progress.

For applications which require 100+ air exchanges each hour Despatch offers the Qmax. This lab oven was specifically designed to meet the frequent air changes and tight temperature uniformity required to meet ASTM 5423 Type I and II specifications. The oven has a temperature variation of less than 6 at 300 while maintaining 100-200 air changes per hour. This lab oven can be used for applications such as thermal evaluation of electrical insulating materials, testing, aging, curing, drying, sterilizing and other thermal applications where tight temperature uniformity is required.

Despatch offers a variety of clean room ovens that are designed to meet the strict requirements of clean process applications. The ovens that Despatch offers are available in many different sizes and configurations to meet specific temperature and cycle requirements. All clean process ovens have stainless steel interiors and HEPA filters.

HEPA filtration of the air inside the oven allows for a clean environment to cure epoxy or to dry parts. Stainless steel interior and exterior allow for easy cleaning. Despatch clean room ovens offer exceptional thermal performance that consistently produces high quality end product.

Despatch clean room ovens are commonly used in the healthcare and medical device markets. Common applications include:

• Annealing the plastics on syringes and catheters
• Adhesive curing and coating curing on pacemakers
• Curing the coating on stents
• Polymerizing contact lenses
• Curing the coating on eye glass lenses

Clean room ovens are also used in semiconductor and electronic component manufacturing applications, including:

• Curing, drying, heating wafers and electronic components
• Epoxy and adhesive curing
• Die bond curing
• Baking of coatings
• Curing the coating on eye glass lenses

Custom Clean Room OvensCustom PRC Clean Room Oven for Semiconductor Manufacturing

Despatch designed this custom clean room oven for a customer to dry their semiconductor parts in a clean room environment. The cabinet of this oven was sized and configured to maximize the amount of product dried in the oven in each batch and optimize throughput capabilities.

The custom oven features a HEPA filter for Class 10 (ISO Class 4) air quality. The interior of the oven is manufactured with electro-polished 316 stainless steel.

High-performing and solidly built using corrosion-resistant materials and over a century of manufacturing experience, Despatch laboratory ovensare the epitome of technological advancement and superior quality. Our ovens deliver invariable, uniform temperature for as long as the oven is in service thanks to its solid build quality and design.

Despatch oven designs have been perfected version after version to deliver higher performance on a smaller footprint with low energy consumption. Standard benchtop laboratory ovens are versatile enough to handle a range of applications, and operate with unprecedented heating accuracy, temperature uniformity, and process repeatability.

LBB Benchtop Oven

• Max temp: 400F (204C)
• Sizes in cu ft: 2, 7, 12, 18, 27
• High limit control
• 304 stainless steel interior
• Digital controller
• 5 year heater warranty

Despatch cabinet ovens and reach in ovens are designed for easy loading and unloading. These ovens offer an almost unlimited amount of application possibilities to meet any of your batch processing needs. An industrial cabinet oven or reach in oven provides an efficient footprint with a wide range of chamber sizes.

LBB Cabinet Oven

• Max temp: 400F (204C)
• Sizes in ft: 12, 18, 27
• High limit control
• 304 stainless steel interior
• Digital controller
• 5 year heater warranty

Despatch walk in and truck in ovens can accommodate a variety of specific product and process needs. These ovens are suitable for loading manually or by fork truck. Typical applications include: aging, bonding, curing, drying, baking, heat treating, annealing and stress-relieving. Despatch's design, manufacturing, quality and innovation ensure industrial ruggedness, excellent process control, and dependable operation.

TAD/TFD Walk in Oven

• Max temp: 650 (343)
• Sizes in cu ft: 52, 104, 216
• TFD: Class A (NFPA 86)
• Fully assembled and tested
• Aluminized steel interior
• Microprocessor controlled