Dec 18, 2015
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
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
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.