TYPES OF BLOWERSTYPES OF BLOWERS

• FAN

-Hight capacity of air

-Low pressure

-Max. ∆p=100mbar

• SIDE CHANEL

-Hight capacity of air

-Low pressure

-Max. ∆p=300mbar

TYPES OF BLOWERSTYPES OF BLOWERS

•BLOWER ROOTS

•COMPRESSOR•Medium capacity of air

•Hight pressure

•Max.∆p= >10bar

PEDRO GIL manufactures roots type positive displacement blowers for several industrial applications such as pneumatic conveying of bulk materials (food, cement, chemical material etc.), waste water treatment, vacuum applcations, gas moving processes and fish farming. Roots type blowers can provide high volumes of air up to 1000 mBar of pressure and 500 mBar of vacuum depending on operating conditions.

•Hight capacity of air

•Medium pressure

•Max.∆p=1000mbar

3D SECTIONAL 3D SECTIONAL DRAWINGDRAWING

-HIGH CAPACITY-MEDIUM PRESSURE

SECTIONAL SECTIONAL DRAWINGDRAWING

OIL

BEARINGS

OIL

BEARINGS

ROTOR

ROTOR

GEARS

PARTS OF MACHINEPARTS OF MACHINE

Clean the filter cartridge if the pressure falls bellow 50 mbar Change de oil in the housings every 4000 hours Check the state of the belts every 500 hours Review the blower bearings and seals after 20.000 hours Oil level control every 1000 hours Perform maintenance of the electrical motor as indicated in the

manufacturer’s specifications General inspection after 8000 hours or at least once a year.

MAINTENANCE CHECK LITS MAINTENANCE CHECK LITS AND TIMEAND TIME

1- BASE SILENCER

2- BLOWER

3- INLET SILENCER

4- FILTER CERTRIDGE

5- SAFETY VALVE

6- CHECK VALVE

7- FLANGE PIPE

8- RUBER SLEEVE

9- CLAMPS

10- ELASTIC FEET

11- ENCLOSURE

12- ELECTRIC MOTOR

13- PULLEY

14- ELECTRIC FAN

15- MANOMETER

16- VACUOMETER

17- OIL FILTER

18- OIL LEVEL

19- ELECTRONIC PANEL (OPTIONAL)

20- THERMOMETER (OPTIONAL)

FAILURE OF BLOWER FOR FAILURE OF BLOWER FOR OVER OVER TEMPERATURETEMPERATURE

AREA OF CONTACT

OVER TEMPERATURE

Dilatation

FAILURE OF BLOWER FOR FAILURE OF BLOWER FOR OVER OVER PRESSUREPRESSURE

OVER PRESSURE

AREA OF CONTACT

∆p > 1000mbar

Flexion

0.25mm

MAIN APLICATIONS OF BLOWERS

WASTE WATER TREATMENT PNEUMATIC HANDLING CONVEYING AND DOSING SYSTEMS FLUIDIFICATION LOW PRESSURE AIR CONVEYS MATERIAL AERATION WITH LOW PRESSURE AIR PRESSURE MATERIAL CONVEYING LOW PRESSURE AIR EXPEDITES BULK CONVEYING LOW PRESSURE AND VACUUM CONVEYING LOW PRESSURE AIR SUPPORT COMBUSTION CENTRALY LOCATED VACUUM SYSTEM MAKES CLEANING EASY VACUUM PACKAGING MIXING SEDIMENT PUNCH COLLECTOR SEWING MACHINE VACUUM TRANSFER LOW PRESSURE AIR AGITATES CHEMICAL SOLUTIONS VACUUM CONVEYS BULK

GROUP WITHOUT CONECTION TO THE GROUP WITHOUT CONECTION TO THE INSTALLATIONINSTALLATION

Without Pressure. Pipe not conect. 0 mbar

1.-Some fences filter the solids of biggest size

2-3.-the water will pass for two types of machines, the "grit tanks", which will eliminate the sands and heavy solids, and the "degreasers", that will erase any type of greasy, and floating existing in the water

4.-The water passes to some deposits where the particles in suspension settle deep down.

5.-The biological treatment has it as goal to eliminate the fertility pollution of the waste waters.This process is developed in tanks aired where a mud activated with microorganisms that assimilate the biodegradable organic matter is formed

6.-The secondary settling consists of a secondary settling whose mission is to separate the mud activated of the water.

WATER HEIGHT 5M

GROUP WIT CONECTION TO THE GROUP WIT CONECTION TO THE INSTALLATIONINSTALLATION

With Pressure. Pipe conect to the installation.

P2 = 500 mbar + kv²Static pressure

Dynamic

pressure Aprox.100mbar

100m P2

P1=P Atm.

WATER HEIGHT 5M

600 mbar

AERATION WITH LOW PRESSURE AIRAERATION WITH LOW PRESSURE AIR

Low pressure air is used in sewage treatment aeration tanks.The air is used to support the bacteria which in turn break down the organic matter

h

h=∆p

-Flow depend of the volum of watwer.

-Pressure is ± hight of the tank.

Biological treatment

O2 expensive

AIR 20% O2

Infonation of the customerInfonation of the customer: FLOW and PRESSURE

DIFERENTS APLICATIONS TO DIFERENTS APLICATIONS TO PNEUMATIC HANDLING PNEUMATIC HANDLING CONVEYING AND DOSING CONVEYING AND DOSING SYSTEMSSYSTEMS

INDUSTRIES SERVED / INDUSTRIES SERVED / BULK MATERIALS CONVEYEDBULK MATERIALS CONVEYED

  Agriculture: Wheat, flour, semolina, barley, oat, rye, bran, chaff, feed, seed, corn, chickpea,

bean, lentil, pea, soy bean, sesame, rice, pice flour, dried fruit, hazelnut, peanut, almond, sunflower seed, cotton seed, grain cereals, chestnut are some of the bulk materials that can be conveyed with pneumatic transportation systems.

Food Industry: Grains and powders like coffee grain, coffe powder, sugar, salt and spice can be

conveyed. Stainless steel equipment (rotary valves, piping, silo) is used in food conveying.

Other Industrial Materials: Cement, mining minerals, petrochemical materials, pharmaceuticals, medical

powders, calcite, pvc, ash, glass powder, marble powder, plastic pellets, sawdust are some of the bulk solids that can be conveyed

MATERIALS FOR PNEUMATIC MATERIALS FOR PNEUMATIC TRANSPORTTRANSPORT

The most common materials for the pneumatic transport are

any material powdered or granulated as:

Sugar Coffee Coal Calcium carbonate Cement Flour PVC Wheat

Dense phase

The dense phase it is used in sectors as the cement or detergents. This technology uses compressed air to pressures that vary bar from 2 to 5 and is suitable for every type of materials and ideal for abrasive products, where the low speed of transport prevents wears in pipings, elbows and other elements.

Its Their main characteristics are the reached distances, up to 2.000 m, and the productions up to 500 t/hr. Besides, the piping is of smaller diameter in relation to the diluted phase, guarantee that losses of air or product during the transport are not produced, are of low air consumption and of low operative costs.

Likewise, the densificación of the product in the piping and the low speed of transport (among 2 to 12 m/sec) allows a soft treatment of the product, preventing the breaking of the particles

Diluted phase

The systems of pneumatic conveyors of phase diluted move material to granel suspended in a draught that is introduced by a blower of positive pressure before the points of entry of materials, or by a vacuum pump that eliminates the air of the system after the points of offloading of materials.

The material is separated airborne from transport in the point of use, and it unloads afterwards in sets by throttle flap valves either of paper cutter, or in a continuous way by rotable flap valves of inner tube.

In conveying of material we have 2 phases:In conveying of material we have 2 phases:

PRESSURE MATERIAL CONVEYINGPRESSURE MATERIAL CONVEYING

Low presure air carries the material from the hopper into the bin.

•Pressure depend of the Pressure depend of the Ø of pipe, Qa of material to conveying and leng of pipe

•Flow depend of Flow depend of the speed that the product need to be conveyed

Infonation of the customerInfonation of the customer: FLOW and PRESSURE

ATMOSPHERE

LOW PRESSURE AIR EXPEDITES LOW PRESSURE AIR EXPEDITES BULK CONVEYINGBULK CONVEYING

A blower can expedite gravity in bulk material conveying systems.

Qa

P2

Infonation of the customerInfonation of the customer: FLOW and PRESSURE

LOW PRESSURE AND VACUUM LOW PRESSURE AND VACUUM CONVEYING VACUUMCONVEYING VACUUM

A vacuum pump pulls the material from the hopper into the bin.

Dosing different granular or powdered materials from silos and filling a mixer or blender

MIXER FILLING, MIXER UNLOADING, MIXER FILLING, MIXER UNLOADING, MIX PREPARING, DOSINGMIX PREPARING, DOSING

Door of access

Inner tube clean

Air drain clean

Deposit of compressed air

Venturi tube Injector tube

Filter bag

Air inlet dirty

Inner tube dirty

Offloading of dust

Unloading a mixer and loading a bag

MIXER FILLING, MIXER UNLOADING, MIXER FILLING, MIXER UNLOADING, MIX PREPARING, DOSINGMIX PREPARING, DOSING

SILO LOADINGSILO LOADING

Conveying From a Machine to Silo with pneumatic conveying system

Silo filling from ground by grain vac system

WEIGHING WEIGHING

Vacuuming bulk solids from ground, weighing and bag filling

LOW PRESSURE AIR LOW PRESSURE AIR CONVEYS MATERIALCONVEYS MATERIAL

A blower supplying low pressure air conveys insulating material to the job site.

TRUCK LOADING, TRUCK UNLOADINGTRUCK LOADING, TRUCK UNLOADING

Truck unloading by mobile pneumatic conveyor 

Silo discharging and truck loading of grain with pneumatic conveying

TRUCK LOADING, TRUCK UNLOADINGTRUCK LOADING, TRUCK UNLOADING

FLUIDIFICATIONFLUIDIFICATION

The basic beginning of the process of fluidification consists in using pressure of air to hold in movement the material that it|he finds in the interior of the silo so that it does not pile up in the inferior part.

LOW PRESSURE AIR SUPPORT LOW PRESSURE AIR SUPPORT COMBUSTIONCOMBUSTION

A gas pump and blower are used in combination air mixes proportionately with the gas to provide a combustible mixture to the burner.

CENTRALY LOCATED VACUUM SYSTEM MAKES CLEANING EASY

The easily accessible sockets of vacuum do the cleaning of the buildings easy and effective .

Central vacuum system ideal for cement plants, plants where aspiration is carried out for vacuum.

MIXING SEDIMENT

Agitating material by air provides for more complete mixing.