Chemical Plants & Equipment

PLANETARY MIXER

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, MARYAM ENTERPRISES 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.

MARYAM ENTERPRISES 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.

A) JACKETED REACTOR

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

B) LIMPETED REACTOR

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

MARYAM ENTERPRISES have 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.

A) SHELL & TUBE HEAT EXCHANGER

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.

B) U-TUBE 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.

C) DOUBLE PIPE HEAT EXCHANGER

Double pipe heat exchangers are the simplest exchangers used in industries. On one hand, these heat exchangers are cheap for both design and maintenance, making them a good choice for small industries. But on the other hand, low efficiency of them beside high space occupied for such exchangers in large scales, has led modern industries to use more efficient heat exchanger like shell and tube or other ones. But yet, since double pipe heat exchangers are simple, they are used to teach heat exchanger design basic to students and as the basic rules for modern and normal heat exchangers are the same, students can understand the design techniques much easier. To start the design of a double pipe heat exchanger, the first step is to calculate the heat duty of the heat exchanger. It must be noted that for easier design, it’s better to ignore heat loss in heat exchanger for primary design. The heat duty can be defined as the heat gained by cold fluid which is equal to the heat loss of the hot fluid.

D) KETTLE REBOILER

Kettle reboilers are very simple and reliable. They may require pumping of the column bottoms liquid into the kettle, or there may be sufficient liquid head to deliver the liquid into the reboiler. In this reboiler type, steam flows through the tube bundle and exits as condensate. The liquid from the bottom of the tower, commonly called the bottoms, flows through the shell side. There is a retaining wall or overflow weir separating the tube bundle from the reboiler section where the residual reboiled liquid (called the bottoms product) is withdrawn, so that the tube bundle is kept covered with liquid and reduce the amount of low-boiling compounds in the bottoms product.

E) PLATE HEAT EXCHANGER

Another type of heat exchanger is the plate heat exchanger. One is composed of multiple, thin, slightly separated plates that have very large surface areas and fluid flow passages for heat transfer. This stacked-plate arrangement can be more effective, in a given space, than the shell and tube heat exchanger. Advances in gasket and brazing technology have made the plate-type heat exchanger increasingly practical. In HVAC applications, large heat exchangers of this type are called plate-and-frame; when used in open loops, these heat exchangers are normally of the gasket type to allow periodic disassembly, cleaning, and inspection. There are many types of permanently bonded plate heat exchangers, such as dip-brazed, vacuum-brazed, and c plate varieties, and they are often specified for closed-loop applications such as refrigeration. Plate heat exchangers also differ in the types of plates that are used, and in the configurations of those plates. Some plates may be stamped with “chevron”, dimpled, or other patterns, where others may have machined fins and/or grooves.

(A) NUTSCHE FILTER

MARYAM ENTERPRISES is a leading and well known manufacturer of Nutsche  Filters and complete Chemical Plants and Chemical Plant Machinery manufacturer in India. Nutsche  Filter is a closed vessel designed to separate solid and liquid by filtration under pressure or vacuum.

(B) PRESSURE SAND FILTER

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.

(D) SPONGE MICRO FILTER

The air pump pushes air through the tubing into the hollow cavity inside the sponge filter. Bubbles rise from the inside of the sponge, thus drawing water through the sponge walls. This water suction process mechanically collects debris from the aquarium and gives beneficial bacteria place to grow.

Types:

• Packed Bad Scrubber
• Plate Type Scrubber
• Cyclonic Scrubber
• Venturi Scrubber
• Wet Scrubber

EVAPORATORS

• FALLING FILM EVAPORATOR

A FALLING FILM EVAPORATOR is an industrial device to concentrate solutions, especially with heat sensitive components. The evaporator is a special type of heat exchanger.

Due to the intimate contact of the liquid with the heating surface, these evaporators are sensitive to fouling from precipitating solids; liquor velocity, typically low at liquor inlet (see above) is usually not sufficient to perform an effective self-cleaning of the tubes. Falling film evaporators are therefore used in clean, non-precipitating liquids. A typical application, in chemical industry, is for concentration of caustic soda.

• RISING FILM EVAPORATOR

A RISING FILM or VERTICAL LONG TUBE EVAPORATOR is a type of evaporator that is essentially a vertical shell and tube heat exchanger. The liquid being evaporated is fed from the bottom into long tubes and heated with steam condensing on the outside of the tube from the shell side. This is to produces steam and vapor within the tube bringing the liquid inside to a boil. The vapor produced then presses the liquid against the walls of the tubes and causes the ascending force of this liquid. As more vapor is formed, the centre of the tube will have a higher velocity which forces the remaining liquid against the tube wall forming a thin film which moves upwards. This phenomenon of the rising film gives the evaporator its name.

There is a wide range of applications for rising tube evaporators, including effluent treatment, production of polymers, food production, thermal desalination, pharmaceuticals, and solvent recovery.[2] In terms of applications within these industries, rising tube evaporators are mainly used as reboilers for distillation columns, or as pre-concentrators or flash evaporators or pre-heaters designed to remove volatile components prior to stripping.

Packed Columns / Bed

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.

ISO TANK

A tank container is built to the ISO Standard, making it suitable for different modes of transportation. Both hazardous and non-hazardous products can be transported in tank containers.

A tank container is a vessel of stainless steel surrounded by an insulation and protective layer of usually Polyurethane and aluminum. The vessel is in the middle of a steel frame. The frame is made according to ISO standards and is 19.8556 feet (6.05 meters) long, 7.874 feet (2.40 meters) wide and 7.874 feet (2.40 meters) or 8.374 feet (2.55 meters) high. The contents of the tank range from 27,000 to 40,000 liters (5,900 to 8,800 imp gal; 7,100 to 11,000 U.S. gal). There are both smaller and larger tank containers, which usually have a size different from the ISO standard sizes.

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.