A kind of miberal powder storehouse dust collecting system
Technical field
The present invention relates to a kind of dust collecting system, specifically a kind of miberal powder storehouse dust collecting system suitable for manufacture of cement industry,
Belong to cement manufacture plant technical field.
Background technology
Byproduct when granulated blast-furnace slag is blast furnace ironmaking is the blast-furnace cinder under molten condition through water quenching quenching
A kind of particulate matter obtained from afterwards, makes mineral matter therein have little time crystallization because blast-furnace cinder employs water quenching quenching
And substantial amounts of vitreum is formed, therefore activity higher is maintained, the main chemical compositions of granulated blast-furnace slag are calcium oxide, aoxidize
Silicon, aluminum oxide and magnesia and other a small amount of compounds, it is very much like with Portland clinker, with larger potential water
Hardness, is the main source of cement industry active mixed material, and cement property high is substituted with 30%~50% ground granulated blast furnace slag
Can concrete can not only improve concrete microstructure, improve intensity, reduce concrete bleeding, improve workability, can
Pump, hydro-thermal is reduced, mass concrete internal temperature rise is prevented and is caused crack, but also the production of concrete can be reduced
The pollution of cost, reduction to environment.
Granulated blast-furnace slag is generally delivered to miberal powder storehouse and enters after being machined to finished size through grinding through conveyer and elevator
Row storage, miberal powder storehouse is typically huge pot structure, and discharge gate is generally arranged at miberal powder bottom of the reservior end, and discharge gate generally falls into two
Road, corresponds to miberal powder packing conveyor, miberal powder can be delivered into packing shop and carry out packed packaging all the way, correspond to all the way bulk machine,
Miberal powder can directly be carried out to the closing railway carriage of filling haulage truck by bulk machine in bulk, because miberal powder is superfine, easily produce and raise
Dirt, therefore miberal powder storehouse is generally equipped with negative pressure of vacuum dust collecting system, existing miberal powder storehouse dust collecting system generally include to contain from
The storehouse top dust collection device and bottom of the reservior dust arrester installation of heart blower fan, as shown in figure 1, the centrifugation of storehouse top dust collection device and bottom of the reservior dust arrester installation
Blower fan is generally arranged at Ku Ding positions, and the airborne dust for being input into the finished product miberal powder generation for pushing up position to miberal powder Kuku by elevator passes through
Storehouse top dust collection device is reclaimed and is back to miberal powder storehouse from Ku Ding positions, and what is produced in the discharging process of two-way discharge gate position raises
Dirt is reclaimed by bottom of the reservior dust arrester installation and is back to miberal powder storehouse, the dust-collecting pipe of usual two-way discharge gate position from Ku Ding positions
Road converges latter public one pipeline that gathers dust being connected with storehouse top centrifugal fan, and this traditional mode of gathering dust also has following lacking
Fall into:
1. the horizontal segment that the dust collection pipe of two-way discharge gate position is typically provided with easily deposits miberal powder, and then subtracts draught area
Small or even blocking;
2. two centrifugal blowers for being arranged on Ku Ding positions are generally driven using two stage electric motor, and the impeller of centrifugal blower is slightly
There is dust stratification to will result in vibration values exceeded, not only easily cause motor damages and bearing fault, and two centrifugal blowers to produce
Raw larger vibration can cause the vibration of storehouse attic plate in turn result in potential safety hazard;
3. storehouse top dust collection device and bottom of the reservior dust arrester installation are respectively provided with centrifugal blower, and power consumption is larger.
The content of the invention
Regarding to the issue above, the present invention provides a kind of miberal powder storehouse dust collecting system, can effectively prevent miberal powder from depositing, ensure have
Realize reducing power consumption and potential safety hazard on the premise of effect dust suction, the airborne dust for being particularly well-suited to manufacture of cement industry miberal powder storehouse is reclaimed.
To achieve the above object, this miberal powder storehouse dust collecting system includes storehouse top dust collection device, bottom of the reservior dust arrester installation and automatically controlled dress
Put;
Described storehouse top dust collection device includes airborne dust recycling can and centrifugal fan;Airborne dust recycling can is fixed erection and is arranged on
The top in miberal powder storehouse, the bottom of airborne dust recycling can is arranged to up big and down small pyramidal structure, and pyramidal structure bottom passes through stop valve
Inner space is pushed up with miberal powder intake line and miberal powder storehouse, the taper surface of pyramidal structure is provided with storehouse top airborne dust recovery port and bottom of the reservior is raised
Dirt recovery port, storehouse top airborne dust recovery port pushes up airborne dust recovery pipe and miberal powder storehouse top inner space by storehouse, airborne dust recycling can it is interior
Chamber middle part is provided with filter mechanism;Centrifugal fan is fixed and set up installed in the top in miberal powder storehouse, and the input of centrifugal fan leads to
Cross air draught pipeline be connected with airborne dust recycling can and communicating position be located at filter mechanism top;
Described bottom of the reservior dust arrester installation includes being located at bottom of the reservior airborne dust point recovery pipe, the connection of correspondence two-way discharge gate position
The total recovery pipe of bottom of the reservior airborne dust being vertically arranged of bottom of the reservior airborne dust point recovery pipe and the airborne dust positioned at storehouse top reclaim bend pipe;Correspondence
Compressed air piping is provided with above the airborne dust point recovery pipe horizontal segment of bottom of the reservior, is provided with many between compressed air piping and horizontal segment
The injection airduct of individual connection compressed air piping and horizontal segment, injection airduct is provided with electromagnetic impulse valve;Airborne dust reclaim bend pipe to
Upper bending structure triangular in shape, two bottoms one end of triangular structure connects with the top of the total recovery pipe of bottom of the reservior airborne dust
Connect, the other end connects connection with the bottom of the reservior airborne dust recovery port of airborne dust recycling can;
Described electric control gear include PLC, control loop of gathering dust, injection control loop, PLC respectively with
Centrifugal fan, stop valve, electromagnetic impulse valve electrical connection.
Scheme as a further improvement on the present invention, it is described to be connected with the top of the total recovery pipe of bottom of the reservior airborne dust
The angle that airborne dust is reclaimed between a bottom of bend pipe and horizontal storehouse top surface is set to 45 °~55 °.
Scheme, described to be connected with airborne dust recycling can bottom of the reservior airborne dust recovery port as a further improvement on the present invention
Airborne dust reclaim bend pipe another bottom and horizontal storehouse top surface between angle be set to 40 °~50 °.
Scheme, valve is provided with described storehouse top airborne dust recovery pipe as a further improvement on the present invention, and valve leads to
Cross valve opening drive mechanism to be electrically connected with the PLC of electric control gear, described electric control gear is also returned including Valve controlling
Road.
Used as a kind of implementation method of valve opening drive mechanism of the present invention, described valve opening drive mechanism is cylinder
And the pneumatic control valve being connected by pneumatic line with cylinder, the input of pneumatic control valve is by pneumatic line and compressed air
Pipeline communication is connected, and pneumatic control valve is electrically connected with the PLC of electric control gear.
Used as the another embodiment of valve opening drive mechanism of the present invention, described valve opening drive mechanism is valve
Door keying motor, valve opening and closing motor is electrically connected with the PLC of electric control gear.
Scheme as a further improvement on the present invention, described injection airduct sets to the back sweep of air-flow traffic direction
Put.
Compared with prior art, this miberal powder storehouse dust collecting system is due to using a centrifugal fan simultaneously for the dress that gathers dust is pushed up in storehouse
Put with bottom of the reservior dust arrester installation provide subnormal ambient, and positioned at miberal powder storehouse discharge gate position airborne dust under subnormal ambient pass through airborne dust
Reclaim bend pipe and be directly entered airborne dust recycling can, therefore the setting of separate unit centrifugal fan can substantially reduce vibratory output, reduce peace
Full blast danger, and the air of cleaning is discharged through centrifugal fan after the filter mechanism filtering in airborne dust recycling can, and then realize
The dust on impeller amount of centrifugal fan is substantially reduced, so as to realize protecting the motor and bearing of centrifugal fan, extension centrifugation
The service life of formula blower fan;Due to being provided with compressed air piping, and pressure above correspondence bottom of the reservior airborne dust point recovery pipe horizontal segment
Multiple injection airducts for connect compressed air piping and horizontal segment are provided between contracting air duct and horizontal segment, are blown on airduct and are set
There is electromagnetic impulse valve, therefore PLC can successively play open and close according to the time interval of setting program from tract to Upstream section
Closing electromagnetic impulse valve makes compressed gas quickly spray into the horizontal segment of bottom of the reservior airborne dust point recovery pipe and the total recovery pipe of bottom of the reservior airborne dust
Inside being blown afloat the miberal powder of deposition follows negative-pressure air-flow to run, can effectively prevent horizontal segment deposit miberal powder, ensure draught area and
Prevent from blocking;Meanwhile, separate unit centrifugal fan and injection airduct with the use of can reduce power consumption, save the substantial amounts of energy, big
Big reduces cost, the airborne dust for being particularly well-suited to manufacture of cement industry miberal powder storehouse is reclaimed.
Brief description of the drawings
Fig. 1 is the structural representation of prior art miberal powder storehouse dust collecting system;
Fig. 2 is structural representation of the invention;
Fig. 3 is the structural representation of airborne dust point recovery pipe horizontal segment in bottom of the reservior of the present invention;
Fig. 4 is the attachment structure schematic diagram that storehouse top dust collection device of the present invention reclaims bend pipe with airborne dust.
In figure:1st, storehouse top dust collection device, 11, airborne dust recycling can, 12, centrifugal fan, 13, stop valve, 14, storehouse top airborne dust
Recovery pipe, 2, bottom of the reservior dust arrester installation, 21, compressed air piping, 22, injection airduct, 23, airborne dust reclaim bend pipe.
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As shown in Fig. 2 this miberal powder storehouse dust collecting system includes storehouse top dust collection device 1, bottom of the reservior dust arrester installation 2 and electric control gear.
Described storehouse top dust collection device 1 includes airborne dust recycling can 11 and centrifugal fan 12;The fixed mount of airborne dust recycling can 11
If installed in the top in miberal powder storehouse, the bottom of airborne dust recycling can 11 is arranged to up big and down small pyramidal structure, pyramidal structure bottom
Inner space is pushed up with miberal powder storehouse by stop valve 13 and miberal powder intake line, the taper surface of pyramidal structure is provided with storehouse top airborne dust and returns
Close up and bottom of the reservior airborne dust recovery port, storehouse top airborne dust recovery port is pushed up airborne dust recovery pipe 14 and pushes up inner space with miberal powder storehouse by storehouse,
The inner chamber middle part of airborne dust recycling can 11 is provided with filter mechanism;Centrifugal fan 12 is fixed and set up installed in the top in miberal powder storehouse, from
The input of core type blower fan 12 is connected by air draught pipeline with airborne dust recycling can 11 and communicating position is located at filter mechanism
Top.
Described bottom of the reservior dust arrester installation 2 includes being located at the bottom of the reservior airborne dust point recovery pipe of correspondence two-way discharge gate position, connects
The total recovery pipe of bottom of the reservior airborne dust being vertically arranged and the airborne dust positioned at storehouse top for connecing bottom of the reservior airborne dust point recovery pipe reclaim bend pipe 23;
As shown in figure 3, being provided with compressed air piping 21, compressed air piping 21 above correspondence bottom of the reservior airborne dust point recovery pipe horizontal segment
Multiple injection airducts 22 for connecting compressed air piping 21 and horizontal segment are provided between horizontal segment, injection airduct 22 is provided with electricity
Magnetic field impulse valve;As shown in figure 4, airborne dust reclaims bend pipe 23 is folded upward at structure triangular in shape, two bottoms one of triangular structure
End is connected with the top of the total recovery pipe of bottom of the reservior airborne dust, the other end is connected with the bottom of the reservior airborne dust recovery port of airborne dust recycling can 11
Connection.
Described electric control gear include PLC, control loop of gathering dust, injection control loop, PLC respectively with
Centrifugal fan 12, the electrical connection of stop valve 13, electromagnetic impulse valve.
This miberal powder storehouse dust collecting system is arranged on miberal powder storehouse when using, control loop of gathering dust work, PLC control from
It is total that the work of core type blower fan 12 makes airborne dust recycling can 11, storehouse push up airborne dust recovery pipe 14, bottom of the reservior airborne dust point recovery pipe, bottom of the reservior airborne dust
It is in negative pressure state that recovery pipe and airborne dust reclaim the inside of bend pipe 23, and the finished product ore deposit for pushing up position is input into miberal powder Kuku by elevator
The airborne dust that powder is produced pushes up airborne dust recovery pipe 14 and is recycled to inside airborne dust recycling can 11 through storehouse, cleaning after being filtered through filter mechanism
Air is discharged through centrifugal fan 12, and airborne dust aggregate and precipitate is in the pyramidal structure of the bottom of airborne dust recycling can 11;Two-way discharge gate
The airborne dust produced in the discharging process of position reclaims bend pipe through bottom of the reservior airborne dust point recovery pipe, the total recovery pipe of bottom of the reservior airborne dust and airborne dust
23 are recycled to inside airborne dust recycling can 11, and clean air is discharged through centrifugal fan 12 after being filtered through filter mechanism, and airborne dust gathers
Collection is deposited in the pyramidal structure of the bottom of airborne dust recycling can 11;PLC control cuts after airborne dust miberal powder is accumulate to setting time
Only valve 13 is opened and makes to be dropped down onto in miberal powder storehouse under airborne dust miberal powder;Injection control loop work during gathering dust, PLC is according to setting
The time interval of program opens successively from tract to Upstream section, close electromagnetic impulse valve makes compressed gas quickly spray into bottom of the reservior to raise
Being blown afloat the miberal powder of deposition in the horizontal segment of dirt point recovery pipe and the total recovery pipe of bottom of the reservior airborne dust follows negative-pressure air-flow to run.
Because gas has viscosity, nearby wind speed is different to thus result in the inside pipe wall that gathers dust, wind at the inside pipe wall wall that gathers dust
Speed is zero, in order to realize more preferable pick-up performance, prevent airborne dust from depositing, scheme as a further improvement on the present invention, such as Fig. 4 institutes
Show, the described airborne dust being connected with the top of the total recovery pipe of bottom of the reservior airborne dust reclaims a bottom and horizontal storehouse of bend pipe 23
Angle between top surface is set to 45 °~55 °, and larger increase in pipeline angle of inclination can prevent airborne dust from depositing.
Airborne dust deposition for the ease of being reclaimed positioned at airborne dust in the descending branch of bend pipe 23 smoothly enters airborne dust recycling can 11, as
Further improvement of the present invention scheme, as shown in figure 4, described be connected with airborne dust recycling can 11 bottom of the reservior airborne dust recovery port
Airborne dust reclaim bend pipe 23 another bottom and horizontal storehouse top surface between angle be set to 40 °~50 °, larger down-comer
Road angle of inclination can promote to be located at the airborne dust deposition declined in pipeline because conducting oneself with dignity along slipping into airborne dust recycling can 11 under inner-walls of duct.
In order to reduced when miberal powder is in bulk miberal powder into the airborne dust produced during tank car, prevent airborne dust self extending from arranging
Gap between expects pipe and tank car inlet is leapt up out and pollutes environment, as a further improvement on the present invention scheme, such as Fig. 4 institutes
Show, described storehouse is pushed up and valve is provided with airborne dust recovery pipe 14, valve is by valve opening drive mechanism and electric control gear
PLC is electrically connected, and described electric control gear also includes valve control loop;Do not carry out miberal powder it is in bulk when PLC
Controllable valve is opened and realizes that storehouse top airborne dust is reclaimed, carry out miberal powder it is in bulk when the controllable valve closing of PLC to realize
The wind speed that bottom of the reservior airborne dust point recovery pipe, the total recovery pipe of bottom of the reservior airborne dust and airborne dust are reclaimed in bend pipe 23 is improved, and then can make to stretch
Indent and realized after expects pipe is docked with tank car in negative pressure state in tank car, so as to prevent airborne dust self extending drainage conduit from being injected with tank car
Leap up out and pollute environment in gap between mouthful.
Used as a kind of implementation method of valve opening drive mechanism of the present invention, described valve opening drive mechanism is cylinder
And the pneumatic control valve being connected by pneumatic line with cylinder, the input of pneumatic control valve is by pneumatic line and compressed air
The connection connection of pipeline 21, pneumatic control valve is electrically connected with the PLC of electric control gear;PLC is by controlling pneumatic control
Valve processed realizes the flexible of control cylinder, and then realizes the keying of valve.
Used as the another embodiment of valve opening drive mechanism of the present invention, described valve opening drive mechanism is valve
Door keying motor, valve opening and closing motor is electrically connected with the PLC of electric control gear;PLC passes through control valve
The keying of valve is realized in the keying for opening and closing motor.
In order to realize preferably being blown effect, scheme as a further improvement on the present invention, as shown in figure 3, described spray
Blower 22 is set to the back sweep of air-flow traffic direction.
As a example by 6 DN20 injection airducts are set on 10 meters of long horizontal sections of bottom of the reservior airborne dust point recovery pipe, by DMF-
The jetting pressure purging that ZM-20 electromagnetic impulse valves are produced, blowing pressurized air pressure by taking 0.5MPa as an example, the switch of pulse valve by
PLC control, each pulse valve deashing time by taking 100ms as an example, consumption of compressed air about 0.038m3/ time, pulse valve gradually deashing
Between interval time as a example by 1 minute, that is, circulation in every 6 minutes, 6 pulse valves consume about compressed air per hour
2.28m3, through adjusting per 1m3Compressed air about needs 0.084kWh, according to average 2 storehouses operation daily, runs 12h daily, passes through
Calculate and understand that 2 storehouses monthly need gas consumption about 1696.32m3, monthly power consumption about 142.5kWh, more double centrifugal fans are saved a large amount of
The energy;As illustrated, first clearing up the downstream bend part near vertical section during deashing, then upstream gather dust a little close, so
Dust collection pipe can preferably be cleaned;The design service life of pulse valve is general at 1,000,000 times or so, and electrical equipment is in use
General seldom to break down, average annual maintenance cost saves great amount of cost at 200 yuan or so.
This miberal powder storehouse dust collecting system is applied equally to cement industry or other granular material storehouses of non-cement industry are in bulk
The dust suction reuse of machine.
This miberal powder storehouse dust collecting system is due to using a centrifugal fan 12 while being that storehouse top dust collection device 1 and bottom of the reservior are gathered dust
Device 2 provide subnormal ambient, and positioned at miberal powder storehouse discharge gate position airborne dust under subnormal ambient by airborne dust recovery bend pipe 23
Airborne dust recycling can 11 is directly entered, therefore the setting of separate unit centrifugal fan 12 can substantially reduce vibratory output, reduce safety wind
Danger, and the air of cleaning is discharged through centrifugal fan 12 after the filter mechanism filtering in airborne dust recycling can 11, and then realize
The dust on impeller amount of centrifugal fan 12 is substantially reduced, so as to realize protecting motor and bearing, the extension of centrifugal fan 12
The service life of centrifugal fan 12;Due to being provided with compressed air piping above correspondence bottom of the reservior airborne dust point recovery pipe horizontal segment
Multiple injection airducts for connecting compressed air piping 21 and horizontal segment are provided between 21, and compressed air piping 21 and horizontal segment
22nd, injection airduct 22 is provided with electromagnetic impulse valve, thus PLC can according to the time interval of setting program from tract extremely
Upstream section opens successively, close electromagnetic impulse valve makes that compressed gas quickly spray into bottom of the reservior airborne dust point recovery pipe and bottom of the reservior airborne dust is total
Being blown afloat the miberal powder of deposition in the horizontal segment of recovery pipe follows negative-pressure air-flow to run, and can effectively prevent horizontal segment placer deposits
Powder, ensure draught area and prevent block;Meanwhile, separate unit centrifugal fan 12 and injection airduct 22 with the use of work(can be reduced
Consume, save the substantial amounts of energy, substantially reduce cost, the airborne dust for being particularly well-suited to manufacture of cement industry miberal powder storehouse is reclaimed.