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Chemical reactors are vessels designed to contain chemical reactions. One example is a pressure reactor. The design of a chemical reactor deals with multiple aspects of chemical engineering. Chemical engineers design reactors to maximize net present value for the given reaction.
Designers ensure that the reaction proceeds with the highest efficiency towards the desired output product, producing the highest yield of product while requiring the least amount of money to purchase and operate. Normal operating expenses include energy input, energy removal, raw material costs, labor, etc. Energy changes can come in the form of heating or cooling, pumping to increase pressure, frictional pressure loss (such as pressure drop across a 90° elbow or an orifice plate), agitation, etc.
In Conventional Jackets second shell is installed over a portion of the vessel, creating an annular space within which cooling or heating medium flows. A simple conventional jacket, with no internal components, is generally very inefficient for heat transfer because the flow media has an extremely low velocity resulting in a low heat transfer coefficient. Condensing media, such as steam or Dowtherm A, is an exception because in this case the heat transfer coefficient doesn't depend on velocity or turbulence, but instead is related to the surface area upon which the media condenses and the efficiency of removing condensate. Internals include baffles that direct flow in a spiral pattern around the jacket, and agitating nozzles that cause high turbulence at the point where the fluid is introduced into the jacket.
Shell and tube heat exchanger in their various construction are probably the most widespread and commonly used basic heat exchanger configuration in the process industries. The reasons for this general acceptance are several. The shell and tube heat exchanger provides a comparatively large ratio of heat transfer area to volume and weight. It provides this surface in a form which is relatively easy to construct in a wide range of sizes and which is mechanically rugged enough to withstand normal shop fabrication stresses, shipping and field erection stresses, and normal operation conditions.
There are many modifications of the basic configuration, which can be used to solve special problems. The shell and tube heat exchanger can reasonably easily clean, and those components most subjects to failure – gasket and tubes – can be easily replaced. Finally, good design method exists, and the expertise and shop facilities for the successful design and construction of shell and tube heat exchanger are available. Different no. of passes can also be given depending on the size and requirement of the Heat exchanger.
The U-tube head (U) is a very simple design requiring a bundle of U tubes, only one tube sheet, no expansion joints, and no rear-end head at all, allowing easy removal of the bundle. The thermal stress problem is eliminated because each tube is free to expand/contract independently. One disadvantage is, individual tube replacement is not possible except in the outer rows, and an even number of tube passes is required. Some tubes are lost in the center due to HEAT EXCHANGERS 17.7 tube bend limit, and tube side mechanical cleaning of the bends is difficult. Flow-induced vibration could be a problem for tubes in the outermost row. It is the lowest-cost design because there is no need for the second tube sheet.
The drying in a Rotary vacuum dryer is a batch operation under vacuum. It is possible to dry heat sensitive materials at well below boiling points of water and solvents. Drying time depends on material being dried, amount of solvent or water to be removed, desired final moisture content, permissible jacket temperature etc. The dryer is available in sizes ranging from 100 liters to 20, 000 liters gross volume. The volume of wet material loaded into the dryer is usually restricted to 40-45% of gross volume.
Rotary vacuum dryer has some typical applications in pharmaceuticals, organic chemicals, pasty materials, insecticides, pesticides, solvent recovery, dye intermediates, dyestuffs and in others industries.
Material of Construction (MOC) Offered : - CS (IS 2062 Gr A/B, SA 516 Gr 60/70, BQ), SS 316, SS 304, SS 316 L, SS 304 L. SS 310, MONEL, INCONEL, TITANIUM, HASTALLOY, PP/FRP ETC.
Features :
We offer efficient nutsche filters for liquid / solid separation in a completely non-metallic environment. The entire unit is mounted on four legs with castor wheel for easy mobility. Our Nutsche Filter provides superior corrosion resistance and permits the handling of virtually all acids and salts at a very high temperature. The filter surface eliminates contamination to increase product purity and allows an easy, fast and thorough cleaning.
Pressure sand filter is used for the removal of suspended solids & turbidity. The pressure sand filter is extremely robust method of removing suspended solids from water. The filtration medium comprises of multiple layers of sand having different sizes. As per the needs of our customers, we can offer sand filters in various sizes and material apart from hand operated or fully automatically operated.
HOW IT WORKS?
Raw water is passed through sand filter at a pressure of 2 - 3.5 kg / cm2.This reduces the suspended solids that are present in the raw water. This filter has the ability to remove up to 30 to 50 micron of suspended solids to less than 5 ppm It is mandatory to wash the filter daily with raw water for 20 to 30 minutes For the filtration of partials below 30 to 50 micron, the cartridge filter is used They are manufactured in mild steel, stainless steel, FRP, MS/RL etc.
The Activated Carbon Filters are manufactured in MS / SS / FRP / MS/RL etc. They contain a perforated plate at bottom with layers of Activated Carbon. When the fluid passes through the Activated carbon bed, the odor / smell is retained by the carbon and odorless fluid passes through. When the carbon bed gets saturated, it is replaced with new one.
The Activated Carbon Filter finds applications in :
Ribbon Blenders are very sturdy and robust. They consist of a U type Vessel with flat head. The central agitator shaft is driven from end with gear box reducer. A double helical ribbon agitator in the vessel moves the product upward along the outer wall and releases it downward into cavities developed in the middle, simultaneously material is horizontally distributed by the mixing arm and is optimally homogenized.
Mixing time is depending on the agitator speed. In general mixing time is three to four times shorter than the mixers working with a rotating screw. The S.S. RIBBON BLENDER is an efficient and versatile blending machine for mixing of dry granules & powders homogeneously.
The dry material gets sufficient continuous movement due to the shape & movement of ribbon & shape of the container, which moves material for good quality of blending.
The unit consists of one electrical motor, one worm reduction gear, belt drive between motor and gear, couple drive between gears to (ribbon) mixing stirrer. Container having four numbers of legs with discharge valve & top cover. Both ends of mixing shaft are sealed with bush & stuffing box.
DESIGN OPTION :
We provide ribbon blenders that give a triple mixing action for efficient blending. Great emphasis is laid on its dimension and configuration for quick product discharge.
Its distinguishing features are :
In chemical processing, a PACKED BED is a hollow tube, pipe, or other vessel that is filled with a packing material. The packing can be randomly filled with small objects like Rasching rings or else it can be a specifically designed structured packing. Packed beds may also contain catalyst particles or adsorbents such as zeolite pellets, granular activated carbon, etc.
The purpose of a packed bed is typically to improve contact between two phases in a chemical or similar process. Packed beds can be used in a chemical reactor, a distillation process, or a scrubber, but packed beds have also been used to store heat in chemical plants. In this case, hot gases are allowed to escape through a vessel that is packed with a refractory material until the packing is hot. Air or other cool gas is then fed back to the plant through the hot bed, thereby pre-heating the air or gas feed.
Material of Construction (MOC) Offered : - CS (IS 2062 Gr A/B, SA 516 Gr 60/70, BQ), SS 316, SS 304, SS 316 L, SS 304 L. SS 310, MONEL, INCONEL, TITANIUM, HASTALLOY, ETC.
A Chimney is a structure which provides ventilation for hot flue gases or smoke from a boiler, stove, furnace or fireplace to the outside atmosphere. Chimneys are typically vertical, or as near as possible to vertical, to ensure that the gases flow smoothly, drawing air into the combustion in what is known as the stack, or chimney, effect. The space inside a chimney is called a flue. Chimneys may be found in buildings, steam locomotives and ships. In the United States, the term smokestack (colloquially, stack) is also used when referring to locomotive or ship chimneys, and the term funnel can also be used.
Material of Construction (MOC) Offered : - CS (IS 2062 Gr A/B, SA 516 Gr 60/70, BQ), SS 316, SS 304, SS 316 L, SS 304 L ETC.
Vibratory Fluidized Bed (VFB) is another type of fluidized bed where the mechanical vibration, enhance the performance of fluidization process. Since the first discovery of vibratory fluidized bed, its vibration properties proves to be more efficient in dealing with fine particles which appears to be very difficult to achieve with normal fluidized bed. Even though numerous publications and its popularity in industrial applications, the knowledge about vibratory dynamics and properties are very limited. Future research and development are needed to further improve this technology to bring it to another level.
Standard type of vibratory fluidized dryer consist of vibrating tray conveyor where hot gases from the chamber will flow through the holes within the tray and come in contact with the materials to be dried. The tray area is big enough to tolerate constant flow of material through the bed and passed along the deck with a low depth on the tray. The vibrations to the deck are directed in vertical component to assist in fluidization of the material whereas the horizontal component of the vibration, support in transporting materials along the tray.
Some of the advantages of vibratory fluidized beds include:
Limitations of vibratory fluidized bed are as follow
Material of Construction (MOC) Offered : - CS (IS 2062 Gr A/B, SA 516 Gr 60/70, BQ), SS 316, SS 304, SS 316 L, SS 304 L. SS 310, MONEL, INCONEL, TITANIUM, HASTALLOY ETC.
Limpeted Vessel with Closed Rigid Container is made using graded carbon steel and stainless steel alloy to ensure fine finish and long lasting usage. The Limpeted Vessel is equipped with closed rigid container for effectively holding gases and liquids at different pressure. The Limpeted Vessel is available in a sturdy construction that is easy to operate. Limpeted Vessel with Closed Rigid Container comes in varied shapes and sizes to cater to industrial requirement. PROCESS REACTION VESSEL
Our Multipurpose process reaction vessel, industrial reaction vessel and plants for manufacture of Bulk Drugs and APIs are designed keeping into consideration the various Process Parameters, also including clean-ability & product impurity profile. Based on these data, we analyze the Heat Transfer requirements, Degree of Agitation, Pressure - Temperature Ratings, Space Availability, Surface Finish requirements, Product Properties, HAZOP Studies, Corrosion Allowance etc., to offer an optimum system suiting your application.
We offer following things :
Material of Construction (MOC) Offered : - CS (IS 2062 Gr A/B, SA 516 Gr 60/70, BQ), SS 316, SS 304, SS 316 L, SS 304 L. SS 310, MONEL, INCONEL, TITANIUM, HASTALLOY, PP/FRP ETC.
The Planetary mixer machine is basically mixing assembly wherein the agitation pattern is of a planetary nature. If offers optimum output as these are installed with gearbox, variable speeds with electronic control. Further, our range can be customized as required by our clients. The blade movement and up-down movement is done through hydraulic system, so that electrical contact is avoided. CCTV is provided to see the operation in remote working PLC along with SCADA operates the full system from a safe distance.
For the processing of sensitive & hazardous heterogeneous compositions containing low to medium viscosity resins/binders & various dried particulate fillers having different particle size ( less than 1 micron to 300 micron) under high vacuum. Intimate mixing of these ingredients is must to ensure uniform mix. End of Mix viscosity to these compositions may vary from 50 poises to 80000 poises at 25°C. For removal of moisture & occluded gas / air from high viscosity composition, application of high vacuum of 0.1 mm of Hg is necessary during mixing. For very viscous compositions initial circulation of hot water through mixer jacket is essential and to avoid sudden rise in viscosity after addition of curing agents cold water circulation through jacket is required. The Planetary mixer unit consist of a Mixer, bowl with trolley, hydraulic drive unit, remotely operated control system with PLC & SCADA along with power back up system for PLC & close circuit camera & color Monitor for remote viewing, during Mixer Operation.
We offer wide range of planetary mixers for Defense industry which are manufactured in different specifications and capacities. With excellent deaeration, these planetary mixers prevent the paste from becoming lumpy. With robust construction and durability, these planetary mixers are widely used for mixing, degassing and kneading viscous and heat sensitive pastes. We also offer tailor made requirements. The speed of planetary mixers ranges from 1rpm to 100 rpm. We can obtain products containing solids Upto 85% in the final mixture.
Material of Construction (MOC) Offered : - CS (IS 2062 Gr A/B, SA 516 Gr 60/70, BQ), SS 316, SS 304, SS 316 L, SS 304 L. SS 310, MONEL, INCONEL, TITANIUM, HASTALLOY, ETC.
