CN201309755Y - Bulk negative-pressure pneumatic transmission system - Google Patents
Bulk negative-pressure pneumatic transmission system Download PDFInfo
- Publication number
- CN201309755Y CN201309755Y CNU2008201240587U CN200820124058U CN201309755Y CN 201309755 Y CN201309755 Y CN 201309755Y CN U2008201240587 U CNU2008201240587 U CN U2008201240587U CN 200820124058 U CN200820124058 U CN 200820124058U CN 201309755 Y CN201309755 Y CN 201309755Y
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- bulk cargo
- negative
- branch road
- delivery duct
- transmission system
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Abstract
The utility model provides a bulk negative-pressure pneumatic transmission system which comprises a bus line transmission pipeline, a separator, a bulk storage bin, a negative-pressure blower, at least one group of branch air-material mixing device and a branch transmission pipeline corresponding to the branch transmission pipeline; and the system provides negative pressure by the negative-pressure blower to form negative-pressure airflow in the transmission pipeline so as to convey bulks. The system substitutes a traditional mode of manually treating bulks and realizes the automatic bulk transmission system; and moreover, compared with other prior bulk transmission systems, the system is more environment-friendly.
Description
Technical field
The utility model relates to a kind of delivery system of bulk cargo, and particularly a kind of in the thermal power generation process, the delivery system by bulk cargos such as negative pressure pneumatic conveying such as stone coals belongs to the energy resource apparatus and technology field.
Background technology
In the thermal power generation process, need grind the bulk cargos such as stone coal that produce to coal mill usually and carry.At present, in most of power plants, all still rely on the mode of artificial treatment that these bulk cargos are transported.Yet this artificial treatment mode exists a lot of drawbacks.Because have residual voltage in the collection coal bunker, and the charging valve closing gets also tight inadequately.When opening collection coal bunker bleeder valve, collect pernicious gases such as the hi-heat sulphur dioxide of meeting ejection, carbonic oxide in the coal bunker, on-the-spot dust flies upward, and is easy to scald the operator, has had a strong impact on the health of environment and operating worker.And adopt in line ground to carry out the mode of artificial treatment again, though can avoid the operator injured, the pollution that is caused is even more serious.In addition, adopt the work efficiency of artificial treatment mode extremely low, serious waste human resources.In sum, it is imperative to adopt the automation delivery system to handle the alternative existing artificial treatment mode of bulk cargo.
In recent years, also there are many knowledgeable people to propose the novel automatic delivery system and handle these bulk cargos.Wherein, relatively be typically Hydraulic Transportation System and mechanical transport system.Yet these two kinds of processing modes also exist problems and can't solve.Hydraulic Transportation System can cause the serious waste and the pollution of water resource, does not meet the requirement of energy-saving and environmental protection.And the physical construction of mechanical transport system itself is comparatively complicated, construction cost costliness, and fault rate height.
In the face of the present situation of above-mentioned bulk cargo delivery system, this patent has proposed a kind of negative-pressure pneumatic transmission system, can well solve the existing problem of above-mentioned variety of way.
Summary of the invention
The purpose of this utility model is to provide a kind of bulk cargo negative-pressure pneumatic transmission system, and this system can realize the bulk cargo automation conveying of coarsegrain, big flow, and has effectively improved the environment of operation field, has reduced staff's labour intensity.
The purpose of this utility model is achieved by following technical proposals:
The bulk cargo negative-pressure pneumatic transmission system is characterized in that: comprise female road delivery duct, disconnector, bulk cargo storage bin, negative-pressure air fan, at least one group of branch road gas material mixing apparatus and cooresponding branch road delivery duct thereof;
Described branch road delivery duct is provided with air inlet valve at initiating terminal, by this air inlet valve and air communication; Described branch road delivery duct is connected with described female road delivery duct endways; Described branch road delivery duct is connected with pairing branch road gas material mixing apparatus in the stage casing; Bulk cargo to be carried enters the branch road delivery duct by described branch road gas material mixing apparatus, mixes with air-flow in the branch road delivery duct;
The air-flow that is mixed with bulk cargo is delivered to described disconnector via described branch road delivery duct, female road delivery duct;
Described disconnector links to each other with described bulk cargo storage bin, negative-pressure air fan respectively; The burbling that is mixed with bulk cargo that described disconnector will be imported is bulk cargo and gas; Separated bulk cargo is delivered to this bulk cargo storage bin, and separated gas is transported to negative-pressure air fan.
The quantity of described branch road gas material mixing apparatus and cooresponding branch road delivery duct thereof is at least two groups; Between each branch road delivery duct and described female road delivery duct, be provided with the branch road valve.
Described branch road gas material mixing apparatus comprises inlet valve, bulk cargo bucket, manhole door, three-way valve; Described branch road gas material mixing apparatus is connected with described branch road delivery duct by this three-way valve;
Described inlet valve is in order to input bulk cargo to be carried;
Described bulk cargo bucket is for storing the container of bulk cargo; In the bulk cargo bucket, be provided with the bulk cargo sieve, in order to filter bulk cargo described to be carried; Do not discharge by described manhole door by the big bulk cargo of this bulk cargo sieve; Bulk cargo by this bulk cargo sieve enters described branch road delivery duct by this three-way valve.
Be provided with a controllable register in the described three-way valve, three-way valve is outside equipped with the adjusting bolt; This controllable register and adjusting bolt interlock.
Gas outlet at described disconnector is provided with filtering net.
Place, gas access at described negative-pressure air fan is provided with the cascade filtration net.
Described filtering net is one deck cloth bag.
Described cascade filtration net is wood pulp paper or corrosion-resistant steel filtering net.
What described negative-pressure air fan adopted is positive displacement blower fan or vacuum pump.
The beneficial effects of the utility model are:
1, this bulk cargo negative-pressure pneumatic transmission system delivers bulk cargo by chimneying, has substituted the mode of traditional artificial treatment bulk cargo, has realized the bulk cargo delivery system of automation.
What 2, this bulk cargo negative-pressure pneumatic transmission system adopted is that air-flow transports bulk cargo as carrier, and this has saved water resource greatly than existing Hydraulic Transportation System, has reduced the operation cost of system.
3, this bulk cargo negative-pressure pneumatic transmission system adopts negative pressure system, has avoided the positive pressure system may be owing to the seal for pipe joints problem gas secondary pollution environment that leaks.
4, this bulk cargo negative-pressure pneumatic transmission system is provided with filtering net between disconnector and negative-pressure air fan, and secondary filtration falls dust entrained in the air-flow, has guaranteed that further site environment is not contaminated.
Description of drawings
Fig. 1 is the bulk cargo negative-pressure pneumatic transmission system first example structure scheme drawing;
Fig. 2 is a three-way valve door section drawing;
Fig. 3 is the bulk cargo negative-pressure pneumatic transmission system second example structure scheme drawing.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described.
The designed bulk cargo negative-pressure pneumatic transmission system of the utility model is a kind of thermal power generation field that is applied to, and forms air-flow by negative pressure, and then the dependence air-flow transports the system that transports as fine granularity bulk cargos such as stone coals.Fig. 1 is the structural representation of this delivery system preferred embodiment.As shown in the figure, this bulk cargo negative-pressure pneumatic transmission system comprises: branch road gas material mixing apparatus, branch road delivery duct 1, female road delivery duct 2, disconnector 3, bulk cargo storage bin 4, negative-pressure air fan 5.
This branch road gas material mixing apparatus docks with higher level's bulk cargo generation device, in order to realize bulk cargo and Air mixing, forms the two phase flow of bulk cargo and gas.Referring to Fig. 1, branch road gas material mixing apparatus comprises: inlet valve 7, bulk cargo bucket 10, manhole door 8, three-way valve 9.Inlet valve 7 is the bulk cargo inlet point of this delivery system in order to dock with higher level's bulk cargo generation device.In this bulk cargo bucket 10, be provided with one deck bulk cargo sieve, carry out screening and filtering in order to bulk cargo to input.Filter to isolate the wherein more difficult bulk cargo that is transported by air-flow of granularity through this bulk cargo sieve, by manually handling, all the other bulk cargos by the bulk cargo sieve are stored in the bulk cargo bucket 10 in order to transporting through described manhole door 8 outputs.Be provided with described three-way valve 9 in the bottom of this bulk cargo bucket 10, bulk cargo bucket 10 links to each other with branch road delivery duct 1 by this three-way valve 9.The bulk cargos that are stored in the bulk cargo bucket 10 enter branch road delivery duct 1 by this three-way valve 9, to mix with air-flow in the branch road delivery duct 1.
The initiating terminal of branch road delivery duct 1 is provided with air inlet valve 6, and air enters branch road delivery duct 1 by this air inlet valve 6.The end of branch road delivery duct 1 is connected with female road delivery duct 2.Branch road delivery duct 1 section therein links to each other with branch road gas material mixing apparatus by three-way valve 9.Because native system forms negative pressure by negative-pressure air fan 5 at female road pipeline end, therefore in branch road delivery duct 1, can form the air-flow that flows to pipe end from air inlet valve 6.Bulk cargo can mix with gas after entering branch road delivery duct 1 by three-way valve 9, and is transported in female road delivery duct 2 according to the flow direction of air-flow.
Female road delivery duct 2 links to each other with described disconnector 3.Described bulk cargo mixes the two phase flow that forms and is transported to disconnector 3 by female road delivery duct 2 with gas.
This disconnector 3 is a kind of centrifugal separation equipment.This equipment is handled the two phase flow that bulk cargo, gas are mixed by centrifugalization and is separated into granular bulk cargo and gas.Wherein, isolated graininess bulk cargo is transported to bulk cargo storage bin 4, gas then by ducting to described negative-pressure air fan 5.Because this disconnector 3 is thought the separation equipment that this area is used always, its concrete device structure just no longer describes in detail at this.But, owing to often carry a large amount of dust in the gas that is separated, directly like this be discharged in the air by negative-pressure air fan 5, contaminated environment not only, and also can cause serious wearing and tearing to negative-pressure air fan 5.Therefore, the gas outlet that this patent also designs at disconnector 3 is provided with the filtering net (not shown), in order to filter out dust entrained in the gas.Usually, this filter screen structure adopts one deck cloth bag to realize.
So far, the bulk cargo that is transported to bulk cargo storage bin 4 is stored in and waits for outward transport in the storage bin to be transported to the destination.
Described negative-pressure air fan 5 is the blower fan of outside air draft, is the propulsion source that this delivery system forms negative-pressure air-flow.Above-mentionedly be discharged in the air by this negative-pressure air fan 5 by disconnector 3 isolated gases.Because this negative-pressure air fan 5 is power resources of chimneying in the native system, so its watt level determined the flow of air-flow in the pipeline, and then determined the carrying capacity of whole delivery system.Therefore, this negative-pressure air fan 5 should be selected more high-performance blower fan for use.Specifically can adopt positive displacement blower fan or vacuum pump in the present embodiment.
Though should be pointed out that aforementioned gas outlet at disconnector 3 be provided with filtering net in order to filtering gas in entrained dust, only depend on the one-level filtration often can not satisfy the discharging needs.Therefore, in order to reduce pollution, to keep on-the-spot working environment, the wearing and tearing of reduction blower fan, this patent also is provided with cascade filtration net (not shown) at the place, gas access of negative-pressure air fan 5, in order to filter out dust more tiny in the gas.Obviously, the sieve aperture of cascade filtration net can be more more tiny than aforementioned filtering net, and this cascade filtration net generally adopts wood pulp paper or corrosion-resistant steel filtering net in actual use.
Therefore the designed bulk cargo negative-pressure pneumatic transmission system of the utility model delivers bulk cargo by chimneying, has substituted the mode of traditional artificial treatment bulk cargo, has realized the bulk cargo delivery system of automation.And what adopt in the native system is that air-flow transports bulk cargo as carrier, and this has saved water resource greatly than existing Hydraulic Transportation System, has reduced the operation cost of system.And it is negative pressure system that this patent is specifically designed to air-transport system, so the air pressure in the delivery duct is less than the barometric pressure in the external world, and this has just been avoided the positive pressure system may be owing to the seal for pipe joints problem gas secondary pollution environment that leaks.In addition, native system also is provided with filtering net between disconnector 3 and negative-pressure air fan 5, filter out low amounts of dust entrained in the air-flow, has guaranteed that further site environment is not contaminated, prolongs the service life of blower fan.
Should be pointed out that the flow velocity of bulk cargo, gas mixing two phase flow should not be too fast or slow excessively in the pipeline in the native system.The too fast wearing and tearing that may aggravate entrained bulk cargo to delivery duct of flow velocity influence life-span of delivery system.Flow velocity is crossed slowly then might cause pipe choking.Therefore, for the ratio of bulk cargo and gas in the actv. adjusting two phase flow, the flow velocity of control two phase flow, this patent has also carried out adjustable design to described three-way valve 9.Fig. 2 is the section drawing of this three-way valve 9.As shown in the figure, in three-way valve 9, be provided with a controllable register 91, be outside equipped with at three-way valve 9 and regulate bolt 92, this controllable register 91 and adjusting bolt 92 interlocks.Operating personal can be adjusted the anglec of rotation of controllable register 91 by the described adjusting bolt of rotation, and then reaches the blanking amount of adjusting, control gas material ratiometric purpose.
Fig. 3 is the another embodiment of the utility model bulk cargo negative-pressure pneumatic transmission system.This embodiment compares with embodiment shown in Figure 1, and difference is female road delivery duct 2 of this embodiment and not only is connected with one road branch road delivery duct 1, but links to each other with many branch road delivery ducts 1.Every corresponding respectively cover branch road gas material mixing apparatus of branch road delivery duct 1.And between each branch road delivery duct 1 and female road delivery duct 2, be provided with branch road valve 11, in order to control being communicated with or closing between this branch road delivery duct 1 and the female road delivery duct 2.Like this, not only can strengthen the carrying capacity of whole delivery system, and can regulate and control each branch road flexibly and whether work.
In sum, this patent design provides a kind of bulk cargo delivery system, and the key points in design of this system is to have formed negative-pressure air-flow by negative-pressure air fan 5 in delivery duct, and realizes the transportation of bulk cargo by this negative-pressure air-flow.Make this delivery system realize automation bulk cargo transportation cheaply based on this principle of design, also guaranteed the environmental protection of field activity environment simultaneously.Therefore, any bulk cargo delivery system based on above-mentioned key points in design all should be considered as within the protection domain of this patent.
Claims (9)
1, bulk cargo negative-pressure pneumatic transmission system is characterized in that: comprise female road delivery duct, disconnector, bulk cargo storage bin, negative-pressure air fan, at least one group of branch road gas material mixing apparatus and cooresponding branch road delivery duct thereof;
Described branch road delivery duct is provided with air inlet valve at initiating terminal, by this air inlet valve and air communication; Described branch road delivery duct is connected with described female road delivery duct endways; Described branch road delivery duct is connected with pairing branch road gas material mixing apparatus in the stage casing; Bulk cargo to be carried enters the branch road delivery duct by described branch road gas material mixing apparatus, mixes with air-flow in the branch road delivery duct;
The air-flow that is mixed with bulk cargo is delivered to described disconnector via described branch road delivery duct, female road delivery duct;
Described disconnector links to each other with described bulk cargo storage bin, negative-pressure air fan respectively; The burbling that is mixed with bulk cargo that described disconnector will be imported is bulk cargo and gas; Separated bulk cargo is delivered to this bulk cargo storage bin, and separated gas is transported to negative-pressure air fan.
2, bulk cargo negative-pressure pneumatic transmission system as claimed in claim 1 is characterized in that: the quantity of described branch road gas material mixing apparatus and cooresponding branch road delivery duct thereof is at least two groups; Between each branch road delivery duct and described female road delivery duct, be provided with the branch road valve.
3, bulk cargo negative-pressure pneumatic transmission system as claimed in claim 1 or 2 is characterized in that: described branch road gas material mixing apparatus comprises inlet valve, bulk cargo bucket, manhole door, three-way valve; Described branch road gas material mixing apparatus is connected with described branch road delivery duct by this three-way valve;
Described inlet valve is in order to input bulk cargo to be carried;
Described bulk cargo bucket is for storing the container of bulk cargo; In the bulk cargo bucket, be provided with the bulk cargo sieve, in order to filter bulk cargo described to be carried; Do not discharge by described manhole door by the big bulk cargo of this bulk cargo sieve; Bulk cargo by this bulk cargo sieve enters described branch road delivery duct by this three-way valve.
4, bulk cargo negative-pressure pneumatic transmission system as claimed in claim 3 is characterized in that: be provided with a controllable register in the described three-way valve, three-way valve is outside equipped with the adjusting bolt; This controllable register and adjusting bolt interlock.
5, bulk cargo negative-pressure pneumatic transmission system as claimed in claim 1 or 2, it is characterized in that: the gas outlet at described disconnector is provided with filtering net.
6, bulk cargo negative-pressure pneumatic transmission system as claimed in claim 5 is characterized in that: the place, gas access at described negative-pressure air fan is provided with the cascade filtration net.
7, bulk cargo negative-pressure pneumatic transmission system as claimed in claim 5 is characterized in that: described filtering net is one deck cloth bag.
8, bulk cargo negative-pressure pneumatic transmission system as claimed in claim 6 is characterized in that: described cascade filtration net is wood pulp paper or corrosion-resistant steel filtering net.
9, bulk cargo negative-pressure pneumatic transmission system as claimed in claim 1 or 2 is characterized in that: what described negative-pressure air fan adopted is positive displacement blower fan or vacuum pump.
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CNU2008201240587U CN201309755Y (en) | 2008-12-01 | 2008-12-01 | Bulk negative-pressure pneumatic transmission system |
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CNU2008201240587U CN201309755Y (en) | 2008-12-01 | 2008-12-01 | Bulk negative-pressure pneumatic transmission system |
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CN102762470A (en) * | 2009-12-24 | 2012-10-31 | 万姆工业股份公司 | Loading apparatus of a silo |
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CN102642726A (en) * | 2012-04-12 | 2012-08-22 | 北京国电富通科技发展有限责任公司 | Long-distance pneumatic conveying direct loading-shipping system for bulk materials |
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CN103274219A (en) * | 2013-06-06 | 2013-09-04 | 南通瑞翔新材料有限公司 | Conveying device for cobaltosic oxide materials |
CN103303677A (en) * | 2013-06-28 | 2013-09-18 | 长治市永华机械有限公司 | Bulk coal collecting device |
CN103381966A (en) * | 2013-07-12 | 2013-11-06 | 信易电热机械有限公司 | Plug-in type stop device and using method thereof |
CN103381966B (en) * | 2013-07-12 | 2016-02-24 | 信易电热机械有限公司 | Namely type of inserting cuts materials device and using method thereof |
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Granted publication date: 20090916 |