LOW SPEED FIXED TYPE AERATORS 1 HP TO 100 HP

This unit is suitable for installation in client’s concrete tank. Each unit will be mounted on concrete supports and shall consist of :-

- TEFC squirrel cage induction motor with IP55 degree of protection suitable for continuous outdoor   operation.

- Worm gear box. - Inverted cone type solid non-clog, self cleaning impeller. - Shaft. - Solid rigid coupling connecting gear box and shaft with   lock plate arrangement. - Lovejoy coupling between motor and gear box. - Base frame. - Bottom coupling connecting impeller to shaft.

SALIENT FEATURES OF “KUNAL” LOW SPEED AERATOR.

Aerators offered by KUNAL are made to the designs of Simon Hartley Ltd. of the United Kingdom, who are pioneers in the field of Effluent Treatment Equipment since 1902. Their Aerators gained world wide popularity by its name “SIMCAR”.

Unlike, flat bladed disc type or hollow cone types, KUNAL Aerator have solid non- clog self cleaning cone type Impeller. This imparts higher aeration, splashing, mixing, turbulence and also induces pumping.

As you are aware Aerators are key units for the entire plant. Malfunctioning/break down/poor efficiency can lead to fall in efficiency of the plant.

TYPES OF AERATORS AVAILABLE IN THE MARKET:-

FLAT DISC TYPE :- These are simple circular dics with plates welded to them. They act more like Agitator than Aerator. Because of this, companies like Hindustan Dorr Oliver buy Aerators from us, due to our solid cone type of design as described below.

HOLLOW CONE TYPE :-These are open ring types with lot of hollow spaces in between. They are highly susceptible to clogging due to foreign objects.

SOLID CONE TYPE OFFERED BY KUNAL :- KUNAL Aerators are made of all solid cones with no hollow spaces whatsoever. The design is based on United Kingdom Company established since 1902.

The very profile of the cone imparts high splashing, and therefore aeration coupled with complete mixing, and turbulence.

Infact where deep tanks are talked about, only such solid cone type Aerator can work because they have pumping capacity.

Our cone type Aerators automatically adjust the power consumption with respect to change in water level. This results in tremendous power conservation at the time of low flows.

Oxygen transfer capacity shall be 2.2/Kgs./hr/ HP under standard testing conditions viz., 20° C, tap water, zero dissolved Oxygen.

COMPARISON OF AERATOR TYPES

 

Part of Aerator	Others	Effect	KUNAL	Effect
Impeller	Flat Disc or Hollow cone	Clogging and poor oxygen transfer	Solid cone with no hollow parts	Higher splashing pumping/mixing and oxygen transfer
Impeller		No power saving	Inverted cone	Adjusts it self with water level, hence, saves power
	Ordinary studs	Limited life	Stainless steel studs with impeller	Unlimited life
Shaft	Hollow	Corrosion - short life	Solid	No corrosion - practically unlimited life
Uses more material	Cast	Weak	Machined from bar	No blow holes - imparts complete fixing and alignment - very strong
		Uses less material		Uses more material

LOW SPEED FLOATING TYPE AERATORS 1 HP TO 100 HP

HIGH SPEED FLOATING AERATORS 1 HP TO 50 HP

This unit is suitable for installation in client’s concrete tank. Each unit will consist of :-

- Vertical TEFC squirrel cage induction flange mounted Motor with IP55 degree of protection suitable for   continuous outdoor operation.

- Core in M. S. epoxy painted construction. - Heavy duty Deflector in cast iron. - Solid shaft and Impeller in S. S. 304. - Float in fiberglass filled with Polyurethane Foam and structurally    reinforced from within. - Coupling between motor and shaft.

SALIENT FEATURES OF “KUNAL” HIGH SPEED AERATOR

Unlike others, our unit has an Elevated Motor mounted on a special support cum motor stool thus protecting it from high intensity spray of pumped liquid. This stool also acts as a Deflector. Our Deflector is a Heavy duty cast iron unit, designed for maximum dispersion at minimum of energy loss. The liquid hits the deflector and produces an area of high intensity spray diffusions, thereby creating a large and continuous air/water interface for oxygen transfer.

An External Bearing Housing is provided between motor shaft and aerator shaft, thus, protecting the motor from all types of loads and avoiding damage to any part due to misalignment. Thus, the unit becomes maintenance free. This feature also enables motor to be taken out without disturbing other parts.

Float is of fiberglass structurally reinforced from within and filled with high-density closed cell polyurethane foam making it life long with high safety factor for flotation. Even people can sit on the float without any fear of the unit going up and down.

The Impeller is in Stainless Steel (SS). It is Dynamically balanced, anti-fouling, non-cavitating, non clog Stainless Steel Propeller capable of achieving maximum aeration pumping and mixing. The Impeller pitch is designed for maximum hydraulic delivery without overloading the motor.

Core (Intake chamber) is designed to retain more velocity energy in the fluid. This design feature also enables liquid to be drawn through the core at high velocity.

Shaft is solid S. S. 304.

COMPARISON OF HIGH SPEED AERATOR TYPES

CAGE ROTORS

CENTRALLY DRIVEN CLARIFIERS 4 MT. DIA TO 50 MT. DIA

- Fixed full bridge with walkway and handrail from one end to   centre. - Influent (feed) well. - Drive arrangement consisting of motor, gear box, pulleys, V-   belts, base plate. - Heavy duty bearing housing to take care of undulations,   torque and loads. - Central shaft. - Rake arms with blades and tie rods. - Rake blades in sludge hopper.

All pipes, including inlet, outlet and sludge pipes are excluded from our scope.

SALIENT FEATURES OF “KUNAL” CLARIFIERS

Kunal Clarifiers have unique design of additional scrapper blades in the hopper. This prevents any possible clogging and thus prevents costly shutdowns.
 

COMPARISON OF CLARIFIER

IN CLARIFIER FOLLOWING ITEMS ARE OPTIONAL :-

- V-notch weir plate.

- Skimmer blade.

- Scum baffle.

- Scum box.

- Telescopic arrangement (excluding piping and valves in an around sludge pit).

PERIPHERALLY DRIVEN CLARIFIERS 4 MT. DIA TO 50 MT. DIA

TUBE SETTLER (RCC TANK)

FLOCCULATOR RCC tank. Each unit will consist of :-

- Support plate.

- Flocculator drive with motor and gear box.

- Rigid coupling.

- Central shaft.

- Flocculation paddles.

RCC SETTLING (TUBE SETTLER) tank. This tank will be fitted with PVC tubes. Settling will be efficiently achieved by tubes which shall be special PVC units with high settling efficiency. The tubes shall be installed and fitted to make continuous settling area and shall be supported on client’s steel supports.
 

TUBE SETTLER (PREFABRICATED STEEL TANK)

SET TUBE SETTLER (PREFABRICATED STEEL TANK)

SETTLING TANK :- The shell be made of MS plates and the shell will have suitable supports with inlet, outlet and drain arrangement. It will have steel launder and collection pipes. Settling will the efficiently achieved by tubes which shall be special PVC units with high settling efficiency. The Tubes shall be installed and fitted to make continuous settling area and shall be supported on steel supports.

A walkway with handrails shall be provided to cover Tube Settler.

The tank shall be painted with Epoxy Primer and Epoxy paint from inside and Red oxide Primer and Synthetic Enamel Paint from outside.

SETTLING TANKS WITH TUBE SETTLERS :- This is an art more than science and lot of design, application and experience goes in to it.

We are perhaps the only company having successfully executed maximum treatment plants with Tube Settlers.

Amongst more than 500 installations, we have executed 17 Sewage Treatment Plants, of which following is the :-

LIST OF PLANTS WITH TUBE SETTLERS :-

-Sewage Treatment Plant and Effluent Treatment Plant for Century Denim at Satrati, near Indore.

-Arvind International at Ahmedabad for their Denim Export Plant.

-Delphi Automotive System (General Motors) at Noida, U. P.
 

PARALLEL PLATE (INCLINED PLATE SEPARATOR (IPSL)

THICKENER MECHANISM 4 MT. DIA TO 35 MT. DIA

CENTRAL DRIVE CLARIFLOCCULATORS 3 MT. DIA TO 50 MT. DIA

PERIPHERALLY DRIVEN CLARIFLOCCULATORS 3 MT. DIA TO 50 MT. DIA

This unit is suitable for installation in client’s concrete tank. Each unit will consist of :-

- Rotating half bridge with walkway and handrails. - End Drive with motor, gear box, base plate, V-belts. - Central bearing housing and slip ring assembly. - Wheels rubberized C.I. - Central cage. - Clarifier rake arms with blades. - Flocculator drive with motor, gear box. - Flocculator paddles. - Flocculator rake arms with blades. All pipes, including inlet, outlet and sludge pipes are excluded from our scope.

LOW SPEED AGITATORS 0.5 HP TO 50 HP

HIGH SPEED AGITATORS 0.5 HP TO 50 HP

MANUAL BAR SCREEN

GRIT REMOVAL MECHANISM

- Rotating bridge with drive arrangement of Motor, Gear   box,coupling etc. - Heavy duty central bearing housing to take care of   undulations in coping. - Current collector. - Grit washer with pump. - Flexible hose for grit removal. - Interconnecting piping for grit, washer and pump.

GRIT REMOVAL MECHANISM suitable of installation in client’s concrete tank. Each unit will consist of :-

- Main drive unit with Motor and Worm Gear box.

- Shaft.

- Scrapper arms with blades and scoops.

- Tie rods.

- Diffuser baffle.

- Classifier drive system with Motor and gear box.

- Scrapper blades at bottom.
 

DIGESTER

MANUAL OIL SKIMMER

VAPOUR PHASE CATALYST TESTING UNIT/ REACTOR FOR CATALYST ACTIVITY MEASUREMENT. SIMILAR TO GEO MECHANIQUE OF FRANCE

I. The unit is an Asset for R & D. We have successfully supplied these units to Godrej Soaps Vikhroli, Mumbai, Herdilia Chemicals, New Bombay, Defence Research Institute, Gwalior. They have extensively used our units to collect useful data from which full-scale commercial plants have been scaled-up.

Godrej Soaps Vikhroli, Mumbai :- They worked on our Laboratory unit for more than 1 year for Dehydration of Fatty Alcohols to Alpha - Olefins. Officers of CSIR, DGTD had visited and they were appreciative of the unit. Subsequently we built a Pilot Plant for Godrej soaps from which they collected data on the basis of which full scale plant of Gujarat Godrej Innovative Chemicals at Bharuch was constructed.

Herdilia Chemicals, New Bombay :-They utilised the unit for their commercial project of Diphenyl Oxide (DPO).

Defence Research Institute, Gwalior : For conversion of Amides to Nitriles.

II. Catalyst Activity Measurement Unit is designed on principle of fixed bed catalytic reactor, which can be operated under high pressure and high temperature. The reactor consists of a Stainless Steel (SS 316) tube which is heated by specially fabricated heaters provided along the length of the tube. The temperature of each heater is separately controlled by electronic indicating temperature controller. The temperature of the bed of catalyst is recorded at various points along the length of the tube on a multi point temperature recorder. All other process parameters are automated and unit can be continuously run with very little attention.

The unit can be used for the following purposes :-

- Measurement of activity of the catalyst and conversion of chemical reactions.

- Selectivity, Thermal stability and life of the catalysts.

- Study of kinetics of chemical reactions.

- Effect of various operating parameters such as temperature, flow rate, pressure etc.

- Studies on poisoning and regeneration of catalysts.

- Equilibrium Adsorption studies.

III. The Set consists of two parts :-

(1) Main equipment supported on a structure.

(2) Instrumentation Panel.

1. The main equipment includes the following :-

- Reservoir for liquid raw material.

- Metering Pump.

- Catalytic reactor.

- Electrical heaters.

- Product cooler.

- Product receiver.

- Inlet/outlet Gas Flow Meter (Cumulative and Flow).

2. The Instrumentation Panel include the following :-

- Indicating temperature controllers.

- Temperature Recorder (optional from 6 to 12 point or a scanner).

- Electrical switches of all the equipment.

IV. SPECIFICATIONS OF THE UNIT : Specifications of Catalyst Activity Measurement unit are given below :-

- Maximum Operating Temperature : 550" c.

- Maximum Operating Pressure : 20 Kg./cm2 (Higher pressures can be designed as per customers   requirements).

- Reactor capacity : Model - 1 : 250 cm3 Model - 2 : 400 cm3

- Maximum flow rate of liquid Model - 1 : 0.8 litres / hour. Model - 2 : 1.6 litres / hour.

- Maximum gas flow rate : Model - 1 : 300 litres / hours. Model - 2 : 1000 litres / hour.

- Temperature control accuracy : 1% of full scale.

- Material of construction : SS 316 (all contact parts)

- Power requirement : Model - 1 : Single phase, 4 kW. Model - 2 : 3 phase, 6 kW.

PACKAGE SEWAGE PLANTS

FLOCCULATOR