CN103332498B - Inlet control valve, powder material tank, powder material storage system and mixing plant - Google Patents
Inlet control valve, powder material tank, powder material storage system and mixing plant Download PDFInfo
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- CN103332498B CN103332498B CN201310237671.5A CN201310237671A CN103332498B CN 103332498 B CN103332498 B CN 103332498B CN 201310237671 A CN201310237671 A CN 201310237671A CN 103332498 B CN103332498 B CN 103332498B
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Abstract
The invention discloses a kind of inlet control valve, powder material tank, powder material storage system and mixing plant.Disclosed inlet control valve, for controlling the break-make of the feed pipe of powder material tank, comprises seat board and valve plates; Described seat board is arranged in the passage of described feed pipe, and forms valve port; Described valve plates and described seat board are hinged and connected; When described valve plates is in the closed position, the upper surface of described valve plates and described seat board is fitted, and coordinates with described valve port; When described valve plates is in an open position, described valve plates is turned over, and in a free state, the Action of Gravity Field of described valve plates makes valve plates overturn to described off position.This inlet control valve can be opened automatically when annotating material, automatically closes when not annotating material; And then can filling process be simplified, avoid or reduce the material outflow because misoperation causes.
Description
Technical field
The present invention relates to powder state material memory technology, particularly a kind of inlet control valve of break-make of the feed pipe for controlling powder material tank; Also relate to a kind of powder material tank comprising this inlet control valve, comprise the powder material storage system of this powder material tank and comprise the mixing plant of this powder material storage system.
Background technology
Powder material tank generally comprises silo, feed pipe, dust collecter and safety valve.Silo forms the powder storage cavity storing powder state material.Feed pipe communicates with powder storage cavity; Dust collecter is arranged between powder storage cavity and the external world, can filter, collect and suspend in atmosphere or floating powder state material, and discharged by air the air of band powder.Safety valve is arranged between powder storage cavity and the external world; When pressure in powder storage cavity is higher than the response pressure set, safety valve is opened, and the air in powder storage cavity or powder state mixtures of materials is discharged, avoids powder storage cavity pressure excessive.
When annotating powder state material in powder storage cavity, usually the conveying pipeline of powder transport vehicle is made to be communicated with the feed pipe of powder material tank, make powder state material and pressurized air be mixed to form material gas mixture by Pneumatic conveyer again, and powder-gas mixture is flowed in powder storage cavity by feed pipe.After entering powder storage cavity, dust collecter filters powder-gas mixture, and most air is discharged to the external world by dust collecter, and powder state material is then deposited in powder storage cavity.
In filling powder state material process, under normal conditions, in powder transport vehicle, powder state material is more, and the powder state material large percentage in the powder-gas mixture of formation, AIR Proportional are less; Now, require lower to the filter efficiency of dust collecter.When in powder transport vehicle, powder state material is less; in order to obtain enough delivery pressures; operating personal can build the pressure to powder transport vehicle usually (being called in industry " breathing "); namely the transfer valve of powder carry car is closed; stop exporting powder-gas mixture; and to the pressurization of powder carry car, until when the pressure in powder carry car reaches a high value, then reopen transfer valve filling powder state material.In the moment reopening transfer valve, in the powder-gas mixture of filling, major part is air, and powder state material accounts for a few part; Now, require that dust collecter has very high filter efficiency (filter efficiency now required is tens times of filter efficiency under normal conditions) and could be discharged by the air in powder-gas mixture in time.When the filter efficiency of dust collecter is not enough, the pressure of powder storage cavity will at the instantaneous response pressure higher than safety valve, and safety valve will be opened, and powder-gas mixture is leaked by safety valve, and then produces " emitting ash " phenomenon.If the dust collecter that the configurating filtered ability of powder material tank is larger, so under normal circumstances, the huge waste of dust collecter equipment cost and operating cost will be caused; " emitting ash " phenomenon if the dust collecter that configurating filtered ability is less (meeting the filtration needs under normal conditions) just cannot be avoided building the pressure under situation.
In order to " emitting ash " phenomenon under reducing the situation that builds the pressure, reduce equipment cost simultaneously and avoid the huge waste of operating cost, adopt technical scheme can be: at two or more powder material tanks and deposit time, the powder storage cavity of any one powder material tank is communicated with the powder storage cavity of other at least one powder material tank.Like this, under the situation that builds the pressure, the powder-gas mixture in the powder storage cavity of an input powder material tank just can arrive in the powder storage cavity of another powder material tank.Again because each powder material tank comprises dust collecter respectively; Like this, the powder-gas mixture now entered in the powder storage cavity of first powder material tank can carry out by the dust collecter of at least two powder material tanks filtration of gathering dust; Like this, the overall filter efficiency to powder-gas mixture of powder material storage system just gets a promotion exponentially.In order to avoid the powder-gas mixture entering the powder storage cavity of another powder material tank outflows from the feed pipe of this powder material tank, in the feed pipe of this powder material tank, also inlet control valve is set, to cut off the passage of this feed pipe.
During due to reality filling material, the powder material tank be connected with the conveying pipeline of powder transport vehicle is uncertain; Therefore, when annotating material, not only to open the inlet control valve of this powder material tank feed pipe, also will close inlet control valve in the feed pipe of other powder material tanks; This not only causes filling process very complicated, and the also frequent misoperation due to operating personal (not responsible, careless etc. reason) causes powder-gas mixture to flow out from the feed pipe of other powder material tanks; This not only causes material waste, also can cause on-the-spot pollution.
Therefore, how to simplify filling process, avoid or reduce the technical barrier that the material outflow caused due to misoperation is needs solution.
Summary of the invention
Based on above-mentioned technical barrier, first the present invention provides a kind of inlet control valve, and this inlet control valve can be opened automatically when annotating material, automatically closes when not annotating material; And then can filling process be simplified, avoid or reduce the material outflow because misoperation causes.
Based on above-mentioned inlet control valve, the present invention also provides a kind of powder material tank comprising this inlet control valve; Utilize this powder material tank, also can simplify filling process, avoid or reduce the material outflow because misoperation causes.
In addition, the present invention also provides a kind of powder material storage system comprising above-mentioned powder material tank, during to this powder material storage system filling powder state material, can simplify filling process, avoids or reduces the material outflow because misoperation causes.On the basis providing above-mentioned powder material storage system, the present invention also provides a kind of mixing plant comprising this powder material storage system.
Inlet control valve provided by the invention, for controlling the break-make of the feed pipe of powder material tank, this inlet control valve comprises seat board and valve plates; Described seat board is arranged in the passage of described feed pipe, and forms valve port; Described valve plates and described seat board are hinged and connected;
When described valve plates is in the closed position, the upper surface of described valve plates and described seat board is fitted, and coordinates with described valve port;
When described valve plates is in an open position, described valve plates is turned over, and in a free state, the Action of Gravity Field of described valve plates makes valve plates overturn to described off position;
Described inlet control valve also comprises the positioning plate corresponding with described valve plates, and described positioning plate is relative with described seat board fixing; When described valve plates is in an open position, described valve plates and described positioning plate inconsistent;
Described inlet control valve also comprises transition conduit; Described transition conduit is connected in described feed pipe; Described seat board is arranged in described transition conduit;
The interior cross section of described transition conduit is greater than the passage section of described feed pipe;
Comprise multiple described valve plates; Described seat board forms multiple described valve port, described valve plates and described valve port one_to_one corresponding; The passage section sum of multiple described valve port is not less than the passage section of described feed pipe.
Optionally, described inlet control valve also comprises stabilizing spring part, and described stabilizing spring part one end is supported on described seat board, and the other end is supported in described valve plates, and applies towards the application force of open position to described valve plates;
Relative to the hinge axes between described valve plates and described seat board, the moment that the gravity that described stabilizing spring part is less than described valve plates to the moment that described valve plates application force is formed is formed.
Optionally, in described valve plates and described positioning plate, at least one has magnetic, makes to produce adsorption affinity therebetween;
Relative to the hinge axes between described valve plates and described seat board, the moment that the gravity that the moment that described adsorption affinity is formed is less than described valve plates is formed.
Powder material tank provided by the invention comprises silo, feed pipe and dust collecter, and described silo forms powder storage cavity, and described feed pipe communicates with powder storage cavity, and described dust collecter is arranged between powder storage cavity and the external world; , also comprise any one inlet control valve above-mentioned; Described seat board is fixed in the passage of described feed pipe.
Powder material storage system provided by the invention comprises at least two powder material tanks, and described powder material tank is any one powder material tank above-mentioned;
Also comprise at least one connecting pipe; The powder storage cavity of powder material tank described in any one is communicated by the powder storage cavity of described connecting pipe with other at least one powder material tank.
Mixing plant provided by the invention comprise with the use of stirring system and aggregate-storing system, described aggregate-storing system comprises any one powder material storage system above-mentioned.
In inlet control valve provided by the invention, comprise seat board and valve plates; Valve plates has off position and open position.When described valve plates is in the closed position, the upper surface of described valve plates and described seat board is fitted, and coordinates with described valve port.When described valve plates is in an open position, described valve plates is turned over, and in a free state, the Action of Gravity Field of described valve plates makes valve plates overturn to described off position.Like this, when not needing filling material, valve plates is in the closed position under its Action of Gravity Field, cuts off the passage of feed pipe.When annotating material, the application force that powder-gas mixture produces can overcome the Action of Gravity Field of valve plates, valve plates is upwards overturn, valve port is opened automatically, and then powder-gas mixture can be made to be smoothly through feed pipe; When material of annotating is complete, valve plates is no longer subject to the effect of powder-gas mixture, is in free state, and now, the Action of Gravity Field of valve plates makes valve plates overturn to described off position, automatically cuts off the passage of feed pipe.Like this, the passage of feed pipe can be opened or be cut off to inlet control valve according to filling material needs, automatically.Utilize this inlet control valve, owing to not needing specialized operations inlet control valve, filling material process can be simplified, improve material filling efficiency; Equally, owing to not needing special operation, can avoid or reduce the material outflow because misoperation causes.
In further technical scheme, inlet control valve also comprises and described valve plates positioning plate one to one, and described positioning plate is relative with described seat board fixing; When described valve plates is in an open position, described valve plates and described positioning plate inconsistent.Special positioning plate is set and can reliably limits valve plates open position, when material of annotating is complete, valve plates can be made more easily to off position upset, and then the reliability of inlet control valve can be improved.
In further technical scheme, inlet control valve also comprises stabilizing spring part, and described stabilizing spring part two ends are supported in described seat board and described valve plates respectively, and applies towards the application force of open position to described valve plates; Can more be conducive to valve plates like this to open.Meanwhile, relative to the hinge axes between described valve plates and described seat board, the moment that the gravity that described stabilizing spring part is less than described valve plates to the moment that described valve plates application force is formed is formed.Like this, complete at filling material on the one hand, when valve plates is no longer subject to the effect of powder-gas mixture, the Action of Gravity Field of valve plates can overcome the application force of stabilizing spring part, and valve plates is successfully overturn to described off position, automatically cuts off the passage of feed pipe; On the other hand, in filling material process, when powder-gas mixture flow velocity (or the application force to valve plates) fluctuates, stabilizing spring part can suitable venting valve door-plate, avoid or alleviate rocking or vibrating of valve plates, reduce noise, extend the valve plates life-span, improve the stability of inlet control valve.
In further alternatives, in described valve plates and described positioning plate, at least one has magnetic, makes to produce adsorption affinity therebetween; Relative to the hinge axes between described valve plates and described seat board, the moment that the gravity that the moment that described adsorption affinity is formed is less than described valve plates is formed.Equally, can more be conducive to valve plates to open; When material of annotating is complete, Action of Gravity Field can overcome adsorption affinity, and valve plates is successfully overturn to described off position; In filling material process, when powder-gas mixture flow velocity (application force) fluctuates, adsorption affinity can suitable venting valve door-plate.
In further technical scheme, also comprise transition conduit; Described transition conduit is connected in described feed pipe, and namely feed pipe can be divided into epimere and hypomere, and the two ends of described transition conduit can connect with the lower end of epimere and the upper end of hypomere respectively; Described seat board is arranged in described transition conduit; Namely transition conduit is connected in the passage of described feed pipe, and described seat board is arranged in the passage of feed pipe by transition conduit.Installation and the assembling of inlet control valve can be facilitated like this, ensure the leak tightness of inlet control valve.In further optimal technical scheme, the interior cross section of described transition conduit is greater than the passage section of described feed pipe; Can be more convenient for like this arranging or arrange the structure of seat board and valve plates, improve the quality of fit of seat board and valve plates.In further technical scheme, comprise multiple described valve plates; Described seat board forms multiple described valve port, described valve plates and described valve port one_to_one corresponding; The passage section sum of multiple described valve port is not less than the passage section of described feed pipe; Such one side can facilitate layout or the setting of seat board and valve plates, also helps powder-gas mixture through-flow, avoids or reduce the throttling action of inlet control valve.
Powder material tank provided by the invention, owing to comprising above-mentioned inlet control valve, also has corresponding technique effect.
Powder material storage system provided by the invention comprises at least two above-mentioned powder material tanks, also comprises at least one connecting pipe; And the powder storage cavity of powder material tank described in any one is communicated by the powder storage cavity of described connecting pipe with other at least one powder material tank.When annotating powder state material in first powder material tank of this powder material storage system, being provided with inlet control valve in the feed pipe due to each powder material tank, the passage of the feed pipe of other powder material tanks can be cut off by inlet control valve; Again because the powder storage cavity of first powder material tank is communicated by the powder storage cavity of connecting pipe with other at least one powder material tank.Like this, under the situation that builds the pressure, reopen the moment of transfer valve, the powder-gas mixture in the powder storage cavity of input first powder material tank just can be arrived in the powder storage cavity of second powder material tank by connecting pipe.Like this, the powder-gas mixture of input just can at least expand in two powder storage cavity; When the amount of the powder-gas mixture inputted keeps equal, compared with the situation expanded in a powder storage cavity with the powder-gas mixture of input, the pressure of powder storage cavity can be made to change less (pressure gain is less), and then reducing possibility of unlatching of safety valve, minimizing builds the pressure the generation of " emitting ash " phenomenon under situation.The more important thing is, again because powder material tank comprises dust collecter respectively; Like this, the powder-gas mixture now entered in the powder storage cavity of first powder material tank can be communicated with the external world by the dust collecter of the dust collecter of first powder material tank and second powder material tank; Like this, two dust collecters are had at least to gather dust filtration to this part powder-gas mixture; Like this, the overall filter efficiency to powder-gas mixture of powder material storage system just gets a promotion exponentially.Compared with prior art, suppose that the powder-gas mixture total amount being now input to powder material storage system is constant, the filter efficiency of the dust collecter of single powder material tank remains unchanged (certainly, the filter efficiency of the dust collecter of single powder material tank can suitably change); But now powder material storage system roughly can double to the filter efficiency of this part powder-gas mixture; The pressure of powder storage cavity so just can be made to reduce roughly one times, and then reduce the unlatching of safety valve, reduce the generation of " emitting ash " phenomenon under the situation that builds the pressure, improve the safety of material filling.Meanwhile, compared with prior art, do not need the dust collecter larger to the configurating filtered ability of each powder material tank, and then can equipment cost be reduced, and avoid the huge waste of operating cost.Certainly, under normal circumstances, annotate in arbitrary powder material tank powder state material time, also can not produce " emitting ash " phenomenon.
Owing to comprising above-mentioned powder material storage system, mixing plant provided by the invention also has relative technique effect.
Accompanying drawing explanation
The accompanying drawing forming a part of the present invention is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.
Fig. 1 is structural representation when inlet control valve that the embodiment of the present invention one provides is in closed condition;
Fig. 2 is structural representation when inlet control valve that the embodiment of the present invention one provides is in open mode;
In the inlet control valve that Fig. 3 provides for the embodiment of the present invention one, seat board and valve plates are articulated and connected part-structure schematic diagram;
The inlet control valve structural representation that Fig. 4 provides for the embodiment of the present invention two;
The theory structure schematic diagram of the powder material storage system that Fig. 5 provides for one embodiment of the invention.
In figure:
Powder material tank 101,102,103
Silo 110
Feed pipe 120
Dust collecter 130;
Powder storage cavity 111
Connecting pipe 140
Upper level-sensing device 150
Inlet control valve 160
Seat board 161
Valve port 161a
Valve plates 162
Positioning plate 163
Stabilizing spring part 164
Transition conduit 165
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the present invention and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is structural representation when inlet control valve that the embodiment of the present invention one provides is in closed condition; Fig. 2 is structural representation when inlet control valve that the embodiment of the present invention one provides is in open mode.For convenience of description, and the connection structure of clear signal inlet control valve and feed pipe, also show feed pipe 120 in figure.
The inlet control valve that the embodiment of the present invention one provides, for controlling the break-make of the feed pipe of powder material tank, can comprise seat board 161 and valve plates 162.
Seat board 161 can be arranged in the passage of feed pipe 120, and forms valve port 161a; Generally extend from the top down based on feed pipe 120, great majority are arranged perpendicular to ground.Seat board 161 can be horizontally disposed with, and vertical with the bearing of trend of feed pipe 120.
Valve plates 162 and seat board 161 are hinged and connected, and the two hinge axes formed can be parallel to the ground.Because valve plates 162 and seat board 161 are hinged and connected, valve plates 162 can rotate predetermined angle relative to seat board 161, and changes between a closed position and a open position.When valve plates 162 is in the closed position (as shown in Figure 1), valve plates 162 is fitted with the upper surface of seat board 161, and coordinates with valve port 161a.When valve plates 162 is in an open position, valve plates 162 is turned over (as shown in Figure 2); And in a free state, the Action of Gravity Field of valve plates 162 makes valve plates 162 overturn to its off position; Namely relative to the hinge axes between valve plates 162 and seat board 161, the gravity of valve plates 162 forms corresponding moment for valve plates 162, and this moment makes valve plates 162 overturn to its off position.
Utilize above-mentioned inlet control valve, when not needing filling material, valve plates 162 is in the closed position under its Action of Gravity Field, cuts off the passage of feed pipe 120.When annotating material, the application force that powder-gas mixture produces can overcome the Action of Gravity Field of valve plates 162, valve plates 162 is upwards overturn, valve port 161a is opened automatically, and then powder-gas mixture can be made to be smoothly through feed pipe 120 upwards flow.When material of annotating is complete, valve plates 162 is no longer subject to the effect of powder-gas mixture, is in free state, and now, the Action of Gravity Field of valve plates 162 can make valve plates 162 overturn to its off position, automatically cuts off the passage of feed pipe 120.Like this, the passage of feed pipe can be opened or be cut off to inlet control valve according to filling material needs, automatically.Utilize this inlet control valve, owing to not needing specialized operations inlet control valve, filling material process can be simplified, improve material filling efficiency; Equally, owing to not needing special operation inlet control valve, can avoid or reduce the material outflow because misoperation causes.
Please refer to Fig. 1 and Fig. 2, in the inlet control valve that this embodiment provides, can also comprise the positioning plate 163 with valve plates 162 correspondence, positioning plate 163 is relative with seat board 161 fixing.In the present embodiment, positioning plate 163 can be relative with seat board 161 fixing by being fixed on feed pipe 120, also directly can be fixed on seat board 161, fix to keep relative with seat board 161.When valve plates 162 is in an open position, valve plates 162 is inconsistent with positioning plate 163.Special positioning plate 163 is set and reliably can limits valve plates 162 open position; Like this, when material of annotating is complete, valve plates 162 can be made more easily to off position upset, and then the reliability of inlet control valve can be improved.
Inlet control valve can arrange a valve plates 162 and arrange a valve port 161a corresponding with this valve plates 162.But because feed pipe 120 is generally pipe, when arranging a valve plates 162, when valve plates 162 is opened, valve plates 162 inwall that is easy and feed pipe 120 is interfered.For this reason, inlet control valve can comprise multiple valve plates 162, and valve plates 162 is overturn to different directions; Seat board 161 can form multiple valve port 161a, and makes valve plates 162 and valve port 161a one_to_one corresponding; Namely, when valve plates 162 is in the closed position, valve plates 162 coordinates with corresponding valve port 161a.Layout or the setting of seat board 161 and valve plates 162 can be facilitated like this.Based on there being multiple valve plates 162, also can be provided with multiple positioning plate 163, multiple positioning plate 163 can with multiple valve plates 162 one_to_one corresponding.The passage section of valve port 161a is suitably set, the passage section sum of multiple valve port 161a can be made to mate with the passage section of feed pipe 120, reduce the throttling action of inlet control valve.
Please refer to Fig. 3, this figure is in the inlet control valve that provides of the embodiment of the present invention one, and seat board and valve plates are articulated and connected part-structure schematic diagram.This inlet control valve also comprises stabilizing spring part 164; Stabilizing spring part 164 one end is supported on seat board 161, and the other end is supported in valve plates 162, and applies towards the application force of open position to valve plates 162; Relative to the hinge axes between valve plates 162 and seat board 161, the moment that the gravity that the moment that stabilizing spring part 164 pairs of valve plates 162 application forces are formed is less than valve plates 162 is formed.Utilize this inlet control valve, complete at filling material, when valve plates 162 is no longer subject to the effect of powder-gas mixture, the Action of Gravity Field of valve plates 162 can overcome the application force of stabilizing spring part 164, valve plates 162 is successfully overturn to its off position, automatically cuts off the passage of feed pipe 120.In filling material process, when powder-gas mixture flow velocity (or the application force to valve plates 162) fluctuates, stabilizing spring part 164 can suitable venting valve door-plate 162, avoid or alleviate rocking or vibrating of valve plates 162, reduce noise, extend valve plates 162 life-span, improve the stability of inlet control valve.Stabilizing spring part 164 can be torsion spring (as shown in Figure 3), also can be other spring installations.
In addition, valve plates 162 can also be made with positioning plate 163, and at least one has magnetic, and makes to produce adsorption affinity therebetween.Relative to the hinge axes between valve plates 162 and seat board 161, the moment that the gravity that the moment that adsorption affinity is formed is less than valve plates 162 is formed.Based on same reason, more can be conducive to valve plates 162 like this and open; When material of annotating is complete, Action of Gravity Field can overcome adsorption affinity, and valve plates 162 is successfully overturn to off position; In filling material process, when powder-gas mixture flow velocity (application force) fluctuates, adsorption affinity can suitable venting valve door-plate 162.
Please refer to Fig. 4, this figure is the inlet control valve structural representation that the embodiment of the present invention two provides.This inlet control valve also comprises transition conduit 165; Transition conduit 165 can be connected in feed pipe 120, and namely feed pipe 120 can be divided into epimere and hypomere, and the two ends of transition conduit 165 can connect with the lower end of epimere and the upper end of hypomere respectively.Seat board 161 is arranged in transition conduit 165.Namely transition conduit 165 is serially connected in the passage of feed pipe 120, and seat board 161 is arranged in the passage of feed pipe 120 by transition conduit 165.Installation and the assembling of inlet control valve can be facilitated like this, ensure the leak tightness of inlet control valve.In addition, the interior cross section of transition conduit 165 can also be made to be greater than the passage section of feed pipe 120.Can be more convenient for like this arranging or arrange the structure of seat board 161 and valve plates 162, improve the quality of fit of seat board 161 and valve plates 162.
Because in transition conduit 165, cross section is greater than the passage section of feed pipe 120, inlet control valve now can be made to comprise multiple valve plates 162, make seat board 161 form multiple valve port 161a, and make valve plates 162 and valve port 161a one_to_one corresponding; Now, the passage section sum of multiple valve port 161a can also be made to be not less than the passage section of feed pipe 120.Can more be conducive to powder-gas mixture so through-flow, avoid or reduce the throttling action of inlet control valve.
On the basis providing above-mentioned inlet control valve, other embodiments of the invention also provide a kind of powder material tank, (can reference diagram 5), and this powder material tank comprises silo 110, feed pipe 120 and dust collecter 130; Silo 110 forms powder storage cavity 111, and feed pipe 120 communicates with powder storage cavity 111, and dust collecter 130 is arranged between powder storage cavity 111 and the external world; Also comprise any one inlet control valve 160 above-mentioned; Seat board 161 is fixed in the passage of feed pipe 120.Owing to comprising above-mentioned inlet control valve, this powder material tank also has corresponding technique effect, can simplify filling process, avoids or reduces the material outflow because misoperation causes, not repeating them here.
Powder material tank can also comprise level-sensing device 150; Upper level-sensing device 150 is arranged on the relevant position of silo 110, and detects the amount of powder state material at suitable check point, and can produce corresponding detection signal when being greater than scheduled volume by the material in powder storage cavity 111.In addition, powder material tank can also comprise suitable supporting leg, discharge valve, lower level-sensing device and safety valve; Supporting leg is for supporting silo 110, and discharge valve can be arranged on silo 110 bottom.Lower level-sensing device can be arranged at the relevant position of silo 110, produces corresponding detection signal when being less than scheduled volume with the material in powder storage cavity 111.Safety valve can be arranged on the relevant position (being usually arranged on silo 110 top) of silo 110, with when powder storage cavity 111 pressure is greater than predetermined response pressure, opens and carries out pressure release.
Thering is provided on above-mentioned powder material tank basis, other embodiments of the invention also provide a kind of powder material storage system.Should be noted that: above-mentioned powder material tank is not limited to be applied to this powder material storage system.Also can be applied in other powder material storage system.Please refer to Fig. 5, this figure is the theory structure schematic diagram of the powder material storage system that one embodiment of the invention provides.The powder material storage system that this embodiment provides comprises at least two powder material tanks, 3 powder material tanks shown in figure, and respectively with 101,102,103 marks.The powder material tank that powder material tank can provide for above-described embodiment.
In addition, the powder material storage system that the present embodiment provides also comprises multiple connecting pipe 140.In the present embodiment, powder material tank 101,102,103 is communicated by connecting pipe 140 order, and namely powder material tank 101 is communicated with powder material tank 102 by a connecting pipe 140, and powder material tank 102 is communicated with powder material tank 103 by a connecting pipe 140.
Like this, annotate in the powder material tank 101 of the powder material storage system provided to the present embodiment powder state material time, powder material tank 102 can be made by inlet control valve 160, the feed pipe 120 of powder material tank 103 remains open.Again because the powder storage cavity 111 of powder material tank 101 is communicated with the powder storage cavity 111 of powder material tank 102 by connecting pipe 140, and the powder storage cavity 111 of powder material tank 102 is communicated with the powder storage cavity 111 of powder material tank 103 by connecting pipe 140.Like this, under the situation that builds the pressure, reopen the moment of transfer valve, the powder-gas mixture in the powder storage cavity 111 of input powder material tank 101 just can be arrived in the powder storage cavity 111 of powder material tank 102 and the powder storage cavity 111 of powder material tank 103 by connecting pipe 140.Now, the powder-gas mixture of input just can expand in three powder storage cavity 111; When the amount of the powder-gas mixture inputted keeps equal, compared with the situation that said circumstances and the powder-gas mixture of input expand in a powder storage cavity 111, the pressure of powder storage cavity 111 can be made to change less (pressure gain is less), and then reducing possibility of unlatching of safety valve, minimizing builds the pressure the generation of " emitting ash " phenomenon under situation.
The more important thing is, again because each powder material tank includes dust collecter 130; Like this, the powder-gas mixture now entered in the powder storage cavity 111 of powder material tank 101 can be communicated with the external world by the dust collecter 130 of the dust collecter 130 of the dust collecter 130 of powder material tank 101, powder material tank 102 and powder material tank 103; Like this, 3 dust collecters 130 are had at least to gather dust filtration to this part powder-gas mixture; Like this, the overall filter efficiency to powder-gas mixture of powder material storage system just gets a promotion exponentially.
Compared with prior art, suppose that the powder-gas mixture total amount being now input to powder material storage system is constant, the filter efficiency of the dust collecter 130 of single powder material tank all remains unchanged, but now born by 3 dust collecters 130 the filtration work of this part powder-gas mixture, the filter efficiency of powder material storage system is roughly increased to original 3 times; The pressure of powder storage cavity 111 so just can be made to reduce a lot, and then reduce the unlatching of safety valve, reduce the generation of " emitting ash " phenomenon under the situation that builds the pressure, improve the safety of material filling.Meanwhile, compared with prior art, owing to not needing the dust collecter larger to the configurating filtered ability of each powder material tank, and then can equipment cost be reduced, and avoid the huge waste of operating cost.Certainly, under normal circumstances, the powder-gas mixture being input to powder material storage system also can be filtered by multiple dust collecter 130, annotate in arbitrary powder material tank powder state material time, also can not produce " emitting ash " phenomenon, or the generation of " emitting ash " phenomenon can be reduced.
According to describing, being appreciated that the core of above-described embodiment is: under the situation that builds the pressure above, by the dust collecter 130 of at least two powder material tanks, the powder-gas mixture entering a powder material tank being filtered; And then, in powder material storage system, the powder storage cavity 111 of any one powder material tank is communicated with the powder storage cavity 111 of other at least one powder material tank by connecting pipe 140; So just can reduce " emitting ash " phenomenon under the situation that builds the pressure, improve the safety of material filling, meanwhile, reduce equipment cost and avoid the huge waste of operating cost.
Based on above-mentioned core, in an embodiment, the powder storage cavity 111 of any one powder material tank can also be made to be communicated with the powder storage cavity 111 of other any one powder material tank by connecting pipe 140; For powder material tank shown in Fig. 1, while the powder storage cavity 111 of powder material tank 101 can be made to communicate with the powder storage cavity 111 of powder material tank 102, the powder storage cavity 111 of powder material tank 101 is communicated with the powder storage cavity 111 of powder material tank 103.Can the powder-gas mixture with amount be directed in other more powder material tanks like this, and then can be filtered the powder-gas mixture with amount by multiple dust collecter 130, and then make the integral filter ability of powder material storage system become many times of ground to increase, and then more can be conducive to the reduction of powder storage cavity 111 internal pressure.Compared with prior art, utilize this embodiment, can be filtered the powder-gas mixture with amount by more dust collecter 130, under appropriate circumstances, the filter efficiency of the dust collecter 130 of each powder material tank can also be reduced, while guarantee is filtered powder-gas mixture, reduce the equipment cost of dust collecter further.
Refer again to Fig. 5, in the present embodiment, the two ends of connecting pipe 140 communicate with powder storage cavity 111 top of two powder material tanks 101,102,103 respectively.Because material in powder material tank is generally positioned at below under gravity; It is chamber portion above powder storage cavity 111; The end of connecting pipe 140 communicates with powder storage cavity 111 top, namely communicates with the chamber portion of powder storage cavity 111.What can ensure like this to be communicated with between powder material tank is smooth and easy, is more conducive to making the dust collecter of multiple powder material tank to share filtration work to powder-gas mixture, ensures the reliability and stability that powder material storage system is filtered powder-gas mixture.Be appreciated that the end of connecting pipe 140 can be communicated with the above position of check point of level-sensing device 150 upper in powder storage cavity 111, what namely can make connecting pipe 140 and powder storage cavity 111 is communicated with the position of position higher than the check point of upper level-sensing device 150.
In the present embodiment, the passage section of connecting pipe 140 is greater than the passage section of feed pipe 120.Powder-gas mixture can be conducive to like this flow between powder material tank, reduce the throttling action of connecting pipe 140, and then be more conducive to making the dust collecter 130 of multiple powder material tank to share filtration work to powder-gas mixture, ensure the reliability and stability that powder material storage system is filtered powder-gas mixture.
Certainly, in other embodiments, in multiple powder material tanks of powder material storage system, at least one powder material tank can be made to be main powder material tank, at least two powder material tanks are from powder material tank.Meanwhile, the filter efficiency of the dust collecter 130 of main powder material tank is greater than the filter efficiency of the dust collecter 130 from powder material tank; Respectively all communicated with the powder storage cavity 111 of main powder material tank by connecting pipe 140 from the powder storage cavity 111 of powder material tank.Utilize this powder material storage system, when carrying out filling material to each from powder material tank, the dust collecter 130 of main powder material tank all can be born and filter work at least partially, is so also conducive to minimizing and builds the pressure the generation of " emitting ash " phenomenon under situation, improve the safety of material filling.Meanwhile, owing to also not needing the dust collecter larger to the configurating filtered ability of each powder material tank, and then can equipment cost be reduced, and the huge waste of operating cost can be avoided.
Other embodiments of the invention additionally provide a kind of mixing plant, this mixing plant comprise with the use of stirring system and aggregate-storing system, aggregate-storing system comprises any one powder material storage system above-mentioned, also has corresponding technique effect, does not repeat them here.This mixing plant can be produce concrete mixing plant, also can be the dry powder mixing plant producing dry powder or other siccatives, or produce the mortar mixing plant work of mortar, or produce the mixing plant that other are uniformly mixed material.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an inlet control valve, for controlling the break-make of the feed pipe of powder material tank, is characterized in that, comprises seat board (161) and valve plates (162); Described seat board (161) is arranged in the passage of described feed pipe (120), and forms valve port (161a); Described valve plates (162) and described seat board (161) are hinged and connected;
When described valve plates (162) is in the closed position, described valve plates (162) is fitted with the upper surface of described seat board (161), and coordinates with described valve port (161a);
When described valve plates (162) is in an open position, described valve plates is turned over by (162), and in a free state, the Action of Gravity Field of described valve plates (162) makes valve plates (162) overturn to described off position;
Also comprise the positioning plate (163) corresponding with described valve plates (162), described positioning plate (163) is relative fixing with described seat board (161); When described valve plates (162) is in an open position, described valve plates (162) is inconsistent with described positioning plate (163);
Also comprise transition conduit (165); Described transition conduit (165) is connected in described feed pipe (120); Described seat board (161) is arranged in described transition conduit (165);
The interior cross section of described transition conduit (165) is greater than the passage section of described feed pipe (120);
Comprise multiple described valve plates (162); Described seat board (161) forms multiple described valve port (161a), described valve plates (162) and described valve port (161a) one_to_one corresponding; The passage section sum of multiple described valve port (161a) is not less than the passage section of described feed pipe (120).
2. inlet control valve according to claim 1, it is characterized in that, also comprise stabilizing spring part (164), described stabilizing spring part (164) one end is supported on described seat board (161), the other end is supported in described valve plates (162), and applies towards the application force of open position to described valve plates (162);
Relative to the hinge axes between described valve plates (162) and described seat board (161), the moment that the gravity that described stabilizing spring part (164) is less than described valve plates (162) to the moment that described valve plates (162) application force is formed is formed.
3. inlet control valve according to claim 1, is characterized in that, described valve plates (162) is with described positioning plate (163), and at least one has magnetic, makes to produce adsorption affinity therebetween;
Relative to the hinge axes between described valve plates (162) and described seat board (161), the moment that the gravity that the moment that described adsorption affinity is formed is less than described valve plates (162) is formed.
4. a powder material tank, comprise silo (110), feed pipe (120) and dust collecter (130), described silo (110) forms powder storage cavity (111), described feed pipe (120) communicates with powder storage cavity (111), and described dust collecter (130) is arranged between powder storage cavity (111) and the external world; It is characterized in that, also comprise the inlet control valve (160) described in any one of claims 1 to 3; Described seat board (161) is fixed in the passage of described feed pipe (120).
5. a powder material storage system, comprises at least two powder material tanks, it is characterized in that, described powder material tank is powder material tank according to claim 4;
Also comprise at least one connecting pipe (140); The powder storage cavity (111) of powder material tank described in any one is communicated with the powder storage cavity (111) of other at least one powder material tank by described connecting pipe (140).
6. a mixing plant, comprise with the use of stirring system and aggregate-storing system, it is characterized in that, described aggregate-storing system comprises powder material storage system according to claim 5.
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| CN107444798A (en) * | 2017-07-21 | 2017-12-08 | 上海宝尼化工机械有限公司 | A kind of powder valve |
| CN109335726A (en) * | 2018-09-29 | 2019-02-15 | 平顶山金晶生物科技股份有限公司 | A kind of soybean wood fibre adding set |
| CN109170976A (en) * | 2018-10-31 | 2019-01-11 | 绩溪县老胡家生态农业专业合作社 | A kind of dried bamboo shoots solarization equipment for drying |
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