| |
Fixed Type Slow Speed Energy Efficient Surface Aerator |
- Products |
| |
|
 |
| |
| Environ Make Energy Efficient Aerators |
 |
ENVIRON make 'Energy Efficient Aerator' is highly efficient mechanical surface aerator especially designed for the use in the following Systems.
|
| |
 |
Activated Sludge |
|
Contact Stabilization |
|
Aerobic Digestion |
|
Surface Water |
|
Regeneration |
|
Evaporation Ponds |
|
|
Pre-Aeration |
|
Fisheries |
|
Aerated Lagoons |
|
Polluted Rivers |
|
Lakes & Ponds |
|
|
|
| |
 |
Years of intensive Research & Development have accomplished the development of the 'Energy Efficient Aerator'. The result is
a sturdy unit which combines high oxygenation efficiency (Oxygen Transfer Capacity ranging from 1.6 to 2.8 Kg per HP/Hour
depending upon the size & atmospheric condition) with thorough mixing and propulsion of the influence to disperse the oxygen
throughout the whole mass of the effluent zone and vigorous agitation to achieve the minimum ripple velocity to keep the
solids in suspension. The entire design is amazingly so simple that it is very easy to install, to run AND to maintain. It
can be mounted on R.C.C. platform or on fabricated steel platform or on pontoons. |
|
| |
| Special Features : |
| » |
Fabricated & Machined Base frame for 5HP to 15HP rating & for 20HP & above Heavy ISMB Beam Base is used. So vibrations are
lessened & again the base is machined on the top surface, so the life of the Gearbox is in increased. |
| » |
Cantilevered load reaction is passed through additional bearings and housing to beam base bottom to RCC platform. So gearbox is not at all affected by overhung load. So life of the gearbox is increased. |
| » |
Additional Bearing Support is provided to the Aerator Shaft, so the unbalanced cantilevered loads are NOT passed to the output shaft of the Gearbox, but those loads are taken by TWO EXTRA bearings & housing. So life of the Gear box is increased. |
| » |
Floor / base support area is 100 times more, so possibility of vibrations is reduced accordingly. |
| » |
Due to conical Impeller and Solid MS shaft, CG lies, nearer to center, so less impact loading. |
| » |
Impeller is machined at centre for its concentric running. |
| » |
Since shaft is fully machined, NO possibility of VOUBLING of shaft concentric running of impeller is ensured. |
| » |
Since Horizontal foot mounted motor is used, the conditions are not seviour as those of flange mounted motor. |
| » |
MAINTENANCE of the gearbox is minimal & handling is easier, as the Extra Bearings are provided to the Impeller Shaft. |
| » |
Spares of the worm gearbox are easily avaliable at comparatively lower cost. |
| » |
Wetted Parts are FRP Lined. |
| » |
Specially designed Impeller is offered for HIGHER WATER DEPTH upto 4.5 to 5.0 mtrs. Aeration Tanks (Less area for Aeration Tank is required, so saving in space) |
| » |
Oxygen Transfer Test as per International American Standard & Wrinklers Procedure of all the Proto type Aerators upto 100 HP are taken in our In House Oxygen Transfer Testing Facility before placing in the market. |
|
|
| |
| Main Design and Constructional Aspects |
|
| ELECTRIC MOTOR |
Electric motor is standard horizontal foot mounted, Square cage induction type three phase, totally enclosed fan cooled with
IP 55, enclosure suitable for outdoor installation, being standard motor, easy availability and minimum "DOWN TIME" are the direct advantages. Flange mounted motor is used for Helical gear type Aerator. |
| |
|
 |
| First in India to offer machined beam base |
| |
 |
| Impellers at centre & shaft are fully machined |
|
| GEAR REDUCER |
The worm gears (or helical gears only if asked for) are used having suitable service factor. The reducer bearing and gears are "OIL BATH LUBRICATED" housed in cast iron casing. Since Greaves (Radicon) / Elecon make gears are used, trouble free and long working life of gears are ensured. |
| |
|
| BASE |
fabricated and Machined base frame for below 20 HP Aerators and fabricated ISMB BEAM base machined on top for 20 HP and above atings upto 50 HP ratings of the aerators. we are the only manufacturer in India to provide this feature. |
| |
| SHAFT |
Amply designed MS FULLY MACHINED solid shaft to take care of heavy, cantilevered, unbalanced and torsional loads. Supported on two numbers heavy duty antifriction bearings housed in heavy duty cast iron bearing housing. Tubular shaft in Aerators with helical gears. |
| |
| IMPELLER |
Impeller is fabricated from mild steel plates having minimum thickness of 6 mm and designed as single shrouded pump impeller to achieve maximum oxygen transfer and mixing efficiency. |
| |
|
|
Being a semi open type impeller it has got a very valuable features of SELF CLEANING. No rag, threads, other solids can get caught on blades. Hence, practically zero maintenance is required for the impeller. We are the only manufacturers who are machining the fabricated impeller to achieve the concentricity. Impeller is S.S. & RUBBER LINED construction is also offered by us. ALL WETTED PARTS ARE EPOXY PAINTED (FRP LINED AS OPTION). |
| |
| COUPLING |
"LOVE JOY" type flexible coupling is used between motor and Gearbox. Heavy duty rigid type coupling is used on output shaft of the gearbox. |
| |
|
| New Generation of Energy Efficient Aerators with Specially Designed Impellers |
|
For compact ETP plant, we have specially designed aerators with special designed Impellers which are used for the aeration tank with lesser area and more depth creating good activity at the bottom level too. This design is given for fixed type and floating type aerators which are in demand nowadays, due to space restrictions.
New specially designed impeller to create excellent VORTEX, for higher Depths of Aeration Tank, no needs to provide any
support in RCC Bottom slab of aeration tank.
|
| |
| Floating Slow Speed Aerator |
|
They are sturdy, vibration less & having higher influence zone as compared to high speed floating Aerators. They can cater higher depths as compared to high speed Aerators. We have got more than 700 installations of this type. |
| |
 |
Floating slow speed Aerator in our
hydraulic
testing facility |
| |
|
| Special Features |
Not affected by Hydraulic level variation in aeration tank, High mixing rate and oxygen transfer efficiency. Easy to install, easy to operate and no R.C.C. platform required, hence economical installation. Flexibility of position change of aerators in case of expansion and insertion of new aerator for increase load without any change in aeration tank. These aerators are also offered with Special Designed Impellers for depths upto 5/6 mtrs. of aeration tanks and hence one can go for very compact aeration system. |
| |
| Construction Features |
Electric Motor, Gear Reducer, Base, Shaft, Impeller & Couplings are same for both the types of aerators. (Fixed & Floating Type Surface Aerators)
|
| |
|
|
| Floats |
|
FRP lined as standard, or Stainless Steel SS 304, SS 316 construction can be provided if required, with necessary hooks for mooring, Nylon of Galvanized Steel rope with specially designed AIRVENT SYSTEM. |
| |
| Inhouse Hydraulic Testing Facilities |
| |
 |
We are the only manufacturers who have got Hydraulic testing facilities for Aerators upto 150 HP ratings. The "Energy Efficient Aerators" are shop assembled and Hydraulically tested before despatch. The only "Energy Efficient Aerator" in the market having one piece impeller machined to achieve concentricity after complete welding. The "Energy Efficient Aerator" is supplied with wetted parts Epoxy painted (FRP lined as option). We are the only manufacturers who can supply the aerators with wetted parts i.e. Impleller and Shaft in "RUBBER LINED CONSTRUCTION" also. This is possible because of our special constructional features of the aerators. Other coats can be given on requests for right applications of "Energy Efficient Aerator". For further assistance, kindly contact our process engineers to assist in selection. |
|
| |
| PRODUCT RANGE |
The product range available is 2 HP, 3 HP, 5 HP, 7.5 HP, 10 HP, 12.5 HP, 15 HP, 20 HP, 25 HP, 30 HP, 40 HP, 50 HP, 75 HP, 100 HP, 125 HP, 150 HP. |
| |
|
|
ADVANTAGES OF SLOW SPEED AERATORS AGAINST HIGH SPEED FLOATING AERATOR |
ENVIRON does not recommend High Speed version of Aerators, since |
| » |
Their influence zone is less compared to Slow speed ones |
| » |
Their influence zone is less compared to Slow speed ones |
| » |
They need Rigorous preventive maintenance because of
1) Shaft and Bush pattern, remaining in efflent
2) Possibility of clinging, adhering of bunch of threads, bunch of hair, plastic bags, cotton rags, etc. between the blade tips & housing pipe.
So from the process point of view and maintenance point of view, ENVIRON highly recommend SLOW SPEED FLOATING AERATORS.
|
|
|
| |
|
| |
|
| |
