CN106275933B - The method of pneumatic solids discharge valve and discharge bulk cargo - Google Patents
The method of pneumatic solids discharge valve and discharge bulk cargo Download PDFInfo
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- CN106275933B CN106275933B CN201510266291.3A CN201510266291A CN106275933B CN 106275933 B CN106275933 B CN 106275933B CN 201510266291 A CN201510266291 A CN 201510266291A CN 106275933 B CN106275933 B CN 106275933B
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Abstract
The present invention relates to a kind of pneumatic solids discharge valves for bulk cargo, including：Valve body has side wall and bottom plate, and the intermediate position of bottom plate is provided with blanking port；Distributing device；It is parallel at least one conveying air port of bottom plate, wherein：Distributing device is arranged right over blanking port and the bottom surface of distributing device right over the blanking port and constitutes the gap that height is H between the upper surface of bottom plate, and projecting edge of the distributing device on bottom plate and the minimum range between blanking port edge are M；Minimum range between distributing device and side wall is W；The conveying air port for conveying wind, conveying tuyere structure at its convey the flow direction of wind be substantially horizontally from side wall via the gap towards blanking port；And to specific bulk cargo, meet M ＞ Hcot β, wherein β is the angle of repose of bulk cargo.
Description
Technical field
The present invention relates to bulk cargos to transport field, the method for especially a kind of solids discharge valve and discharge bulk cargo.
Background technology
By bulk cargo, from the bottom of a container, discharge is a kind of common industrial requirement, is in container bottom setting removal device
General design.Removal device does not need only to have reliable closing and open function, also wants the rate of discharge that can adjust material.
Bulk cargo, which transports control and can be divided by operation logic, mechanical transports control device and non-mechanical transports control device.It is wherein mechanical
Formula transports control device, such as center feeder, screw(-type) feeder, Star-like unloader, roller etc.；Non-mechanical transports control dress
It sets, such as L valves, U valves etc..
Under normal temperature condition, mechanical removal device is very complete, can meet the discharge demand of general industry.In recent years
Coming, high-temperature machinery class removal device is also developed, but problem is encountered that, there are complicated, valences for this type high temp removal device
Lattice are expensive, functional reliability is poor, maintenance difficult, rotating mechanism need the shortcomings of cooling, easy to wear.
Non-mechanical transports control device and uses gas push bulk movement, thus can realize it is simple in the high temperature environment and
Bulk cargo is reliably transported, due to no dynamic component, so simple in structure, operation is flexible, and manufacturing cost is cheap.At present more typically
Non-mechanical transport control device and have L valves, U valves etc..L valves are considered as controlled valve, can adjust and control bulk cargo and transport, so
And L valve fluctuations of service, phenomena such as standpipe is susceptible to bridge formation and aeroembolism, and it is its critical defect to be easy to happen gravity flow.U valves
For loop seal, it is widely used in recirculating fluidized bed, however conveys and be affected by inlet and outlet pressure with control ability, to dissipates
Expect that the adjusting transported and control ability are extremely limited, and is not suitable for coarse granule material and transports.
Mainly single-point is used to control conveying capacity in addition, existing bulk cargo transports control device, such as mechanically transports control
Device by rotatable parts running frequency control conveying capacity, non-mechanical transport control device generally controlled by Fluidization wind rate it is defeated
Freight volume, therefore the control range of conveying capacity is relatively limited.
Invention content
The purpose of the present invention is overcoming existing bulk cargo to transport the defect of control device, providing one kind can in the high temperature environment may be used
Control the pneumatic solids discharge valve of stable operation, there is self-locking function, conveying capacity can flexible modulation, and conveying capacity adjustable range is big.
In order to achieve the above objectives, the present invention is proposed.
According to one aspect of the embodiment of the invention, a kind of pneumatic solids discharge valve for bulk cargo is proposed, including：
Valve body has side wall and bottom plate, and the intermediate position of bottom plate is provided with blanking port；Distributing device；It is parallel at least one defeated of bottom plate
Air outlet, wherein：Distributing device is arranged right over blanking port and the bottom surface of distributing device right over the blanking port and bottom plate
The gap that height is H, projecting edge of the distributing device on bottom plate and the most narrow spacing between blanking port edge are constituted between upper surface
From for M；Minimum range between distributing device and side wall is W；For conveying wind, conveying tuyere structure is defeated at its in the conveying air port
The flow direction of air-supply be substantially horizontally from side wall via the gap towards blanking port；And to specific bulk cargo, meet M ＞
Hcot β, wherein β is the angle of repose of bulk cargo.
Optionally, length L ranging from 0~W of the conveying air port apart from side wall.
Optionally, the edge of the blanking port is provided with towards annular projection outstanding in the gap.
Optionally, the valve body is cylindrical shape, and the pneumatic solids discharge valve includes a round blanking port, described pneumatic
Solids discharge valve includes that a bottom surface is circular distributing device, the central axis rotational symmetry of distributing device, blanking port about valve body
Arrangement.Optionally, the distributing device is cone, the bottom surface of the bottom surface of cone as distributing device.Optionally, the distributing device
For cylinder；Or the upper and lower part of the distributing device is the cone and cylinder to adjoin one another.Optionally, pneumatic solid
Blow-off valve includes multiple conveying air ports, and the multiple conveying air port is around the blanking port equiangularly spaced cloth in a circumferential direction
It sets.
Optionally, the valve body is rectangular drum like, and the pneumatic solids discharge valve includes a rectangle blanking port, the gas
Dynamic solids discharge valve includes the distributing device that a bottom surface is rectangle, the centre of moment of the blanking port, the distributing device bottom surface square
The heart is respectively positioned on the central axis of valve body, and the four of blanking port in the four of the bottom surface of, distributing device with four side walls of valve body
It is parallel respectively.Optionally, the distributing device is rectangular pyramid, and the bottom surface of rectangular pyramid is the bottom surface of distributing device.Optionally, the cloth
Device includes quadrangular, and the bottom surface of quadrangular is the bottom surface of distributing device.Optionally, pneumatic solids discharge valve includes multiple conveying wind
Mouthful, the multiple conveying air port is divided into the conveying air port in four groups, each group of four side walls for being arranged in valve body along side
Wall is equidistantly spaced from.Optionally, pneumatic solids discharge valve includes multiple conveying air ports, and the multiple conveying air port is divided into cloth respectively
The conveying air port set in two groups, each group of two parallel side walls of valve body is equidistantly spaced from along side wall.
Optionally, the valve body is rectangular drum like, and the pneumatic solids discharge valve includes the long side that parallel interval opens arrangement
Two rectangle blanking ports parallel to each other, and four sides of each blanking port are parallel with four side wall difference of valve body.Optionally,
The pneumatic solids discharge valve includes a rectangle blanking port, and the long side of blanking port is parallel with the long side side wall of valve body, blanking
The short side of mouth is combined as a whole with valve body.Optionally, the pneumatic solids discharge valve includes the triangular prism that a bottom surface is rectangle
Distributing device, two long side side walls of long side and valve body of the bottom surface of distributing device are parallel, both ends of the surface and the valve body both ends of the surface knot of distributing device
It is integrated.Optionally, pneumatic solids discharge valve includes multiple conveying air ports, and the multiple conveying air port, which is divided into, to be arranged in
Two groups of two parallel side walls of valve body, the conveying air port in each group are equidistantly spaced from along side wall, two of the valve body
Parallel side wall is parallel to the long side of rectangle blanking port.Optionally, the blanking port be parallel interval open two of arrangement it is identical
Rectangle blanking port, relative position of two rectangle blanking ports on bottom plate be identical.
Optionally, the valve body is rectangular drum like, and the pneumatic solids discharge valve includes the long side that parallel interval opens arrangement
Two rectangle blanking ports parallel to each other, the pneumatic solids discharge valve include the distributing device that two bottom surfaces are rectangle, are set respectively
Set in the top of corresponding rectangle blanking port, and the four of each blanking port in the four of the bottom surface of, distributing device with valve body
Four side wall difference are parallel.Optionally, pneumatic solids discharge valve includes multiple conveying air ports, and the multiple conveying air port is divided into point
It is not arranged in two groups of two parallel side walls of valve body, the conveying air port in each group is equidistantly spaced from along side wall, the valve
Two parallel side walls of body are parallel to the long side of rectangle blanking port.
Optionally, each conveying air port is the spray-hole being arranged in air-supply header, and air-supply header has to its air feed
At least one ajutage, the air-supply header be and the body concentric annulus of valve.
Optionally, each conveying air port be arranged air-supply header on spray-hole, each air-supply header have to
At least one ajutage of its air feed, the air-supply header are the be spaced apart in a circumferential direction and body concentric multiple arcs of valve
Shape section.Optionally, multiple partition boards are provided in the gap between the bottom surface of distributing device and the upper surface of bottom plate, it is the multiple
Partition board has one or more segmental arcs so that the gap is divided into multiple identical sector regions in each sector region.
Optionally, in the scheme of conveying air port grouping, each conveying air port is the spray-hole being arranged in air-supply header,
Each air-supply header has at least one ajutage to its air feed.
Optionally, each conveying air port is blown by a corresponding ajutage.
Optionally, it between the blanking port and the side wall, is provided at the bottom plate and loosens air port, for blowing upwards
Send loosening wind.
Another aspect according to an embodiment of the invention, it is proposed that a kind of to be gone out using above-mentioned pneumatic solids discharge valve flat raft
The method of bulk cargo, includes the following steps：Stop to conveying air port air feed so that bulk cargo is in self-locking state to close pneumatic solid
Blow-off valve；With to conveying air port air feed to open pneumatic solids discharge valve.
Optionally, include adjusting to enter conveying air port to open the step of pneumatic solids discharge valve to conveying air port air feed
Volume of air supply.
Optionally, include the different conveying air port of control to open the step of pneumatic solids discharge valve to conveying air port air feed
Air feed whether and/or air feed duration.
Optionally, it is provided at the bottom plate between the blanking port and the side wall and loosens air port；To conveying air port
Air feed includes being used to be blown up loosening wind from the loosening air port to open the step of pneumatic solids discharge valve.
Description of the drawings
Fig. 1 is the schematic elevation view according to the pneumatic solids discharge valve of the embodiment of the present invention 1.
Fig. 2 is the schematic top plan view according to the pneumatic solids discharge valve of the embodiment of the present invention 1.
Fig. 3 is the schematic elevation view according to the pneumatic solids discharge valve of another kind of the embodiment of the present invention 1.
Fig. 4 is the schematic elevation view according to another pneumatic solids discharge valve of the embodiment of the present invention 1.
Fig. 5 is the schematic elevation view according to another pneumatic solids discharge valve of the embodiment of the present invention 1.
Fig. 6 is the schematic elevation view according to another pneumatic solids discharge valve of the embodiment of the present invention 1.
Fig. 7 is the schematic top plan view according to the pneumatic solids discharge valve of the embodiment of the present invention 2.
Fig. 8 is the schematic elevation view according to the pneumatic solids discharge valve of the embodiment of the present invention 3,4.
Fig. 9 is the schematic top plan view according to the pneumatic solids discharge valve of the embodiment of the present invention 3.
Figure 10 is the schematic top plan view according to the pneumatic solids discharge valve of the embodiment of the present invention 4.
Figure 11 is the schematic elevation view according to the pneumatic solids discharge valve of the embodiment of the present invention 5.
Figure 12 is the schematic elevation view according to the pneumatic solids discharge valve of the embodiment of the present invention 6.
Figure 13 is the schematic top plan view according to the pneumatic solids discharge valve of the embodiment of the present invention 6.
Figure 14 is the schematic elevation view according to the pneumatic solids discharge valve of the embodiment of the present invention 7.
Specific implementation mode
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.Illustrating
In book, same or analogous drawing reference numeral indicates same or analogous component.Following reference attached drawings are to embodiment of the present invention
Illustrate to be intended to explain the present general inventive concept of the present invention, and is not construed as a kind of limitation to the present invention.
The pneumatic solids discharge valve of the present invention includes valve body, distributing device and conveying air port.
Valve body is the vertical container of upper opening, generally cylindrical, and cross section can be round, more including rectangle
Side shape and curved shape etc., bulk cargo enter from upper part；Valve body bottom plate is equipped at least one blanking port, for material to be discharged.
Blanking port can be round, rectangle and other shapes.
At least one fixed distributing device is equipped in valve body, for supporting material and material being uniformly oriented to blanking port side
To.Distributing device is standing of being combined with cylinder of the cone of the vertex of a cone upward, the polygonal pyramid body including rectangular pyramid, cone
Bodily form etc., and bottom is its cross-section.At least part constitutes the wide seam that width is W between distributing device bottom surface and valve interior wall,
It falls through this for material.The gap that a height is H is constituted between distributing device bottom surface and valve body bottom plate, is fallen through this flow direction for material
Material mouth.Distributing device is located at right over blanking port, and blanking port, and perspective plane is completely covered in projection of the distributing device on valve body bottom plate
Product is more than blanking open area；Can be distributing device there are one each blanking port top is all provided with, Huo Zheyi when there is multiple blanking ports
Projection of a distributing device on bottom plate can cover multiple blanking ports simultaneously.Projecting edge and blanking of the distributing device on valve body bottom plate
Minimum range between mouth edge is M.Preferably, projection of shape of the distributing device on bottom plate and blanking mouth-shaped are similar figures,
And center overlaps, such as the two is circular concentric, the difference of radius is M, or two rectangles for being M for corresponding four back gauge.Cloth
The bottom surface of glassware can be solid, can also be hollow.
Body wall lower part is equipped at least one conveying air port for being parallel to valve body bottom plate, for being passed through conveying wind, conveys
Wind flow direction is to be directed toward blanking port center, and the gap between face distributing device and valve body bottom plate by body wall.Convey wind
The depth that mouth is inserted into body wall is L；L can be 0, that is, convey the internal face that air port is opened on body wall.Preferably, it conveys
Air port is more, is evenly distributed on valve body periphery.
To specific bulk cargo, there is specific angle of repose β.This blow-off valve for specific bulk cargo be applicable in condition be：M ＞
H·cotβ.Preferably, depth L ranging from 0~W of body wall are inserted into conveying air port.
When bulk cargo is added from valve body top, bulk cargo slides along distributing device, through the width between distributing device bottom surface and valve interior wall
Seam, is accumulated in the gap between distributing device bottom and valve body bottom plate, and front end forms an inclined-plane at an angle β with horizontal plane.By
In the minimum range M ＞ Hcot β of distributing device bottom edge and blanking port edge in horizontal plane projection, therefore material nature heap
The inclined-plane that product is formed will not reach and be in self-locking state under the friction force effect of blanking port namely bulk cargo between material particles, quiet
It is only motionless.As it can be seen that blow-off valve has self-locking function.
When needing discharge, it is passed through conveying wind by conveying air port, forms jet stream, changes material in conveying air hose fluerics
Frictional force between particle makes its angle of repose become smaller；Material enters blanking port under conveying wind conveying, and arranges under the effect of gravity
Go out blow-off valve.Along with being passed through for conveying wind, the material between valve body and distributing device slit is under the effect of gravity with moving bed shape
Formula enters conveying air hose fluerics, continues discharge to be formed.Due under gravity and hydrostatic pressure material in the form of moving bed
Into in conveying air hose fluerics, the fluidization characteristic of material does not change with conveying operation with stopping, therefore when conveying wind
When stopping, the material between slit restores natural packing state under the force effect that rubs, and blow-off valve stops discharge.Hereby it is achieved that
The opening and closing of blow-off valve.
The adjusting of discharge rates can be realized by two ways：
First, change the volume of air supply namely effluxvelocity in single conveying air port, to change the conveying inventory of conveying wind,
Volume of air supply is bigger, and discharge rates are higher；
Second is that being simutaneously arranged multigroup conveying air port on valve body, discharge is adjusted by controlling the conveying air port group number of ventilation
Rate；Such as a conveying air port is first turned on, adjacent or offside conveying air port is opened while being then shut off the air hose, or
Person opens several groups of conveying air ports simultaneously every time, closes in addition several groups of conveying air ports；The duration for opening and closing conveying air port can also
It is adjusted flexibly as needed.
In addition, the geometric dimension of blow-off valve itself also contributes to individually convey material conveying capacity when air port is opened, always
For body：Slit height H is higher, and slit width W is wider, and conveying air port insertion depth L smaller, and discharge rates are higher.Its
In, the insertion depth for conveying air port is deeper, and it is fewer that jet stream pushes the material into blanking port；The present invention limits conveying air port and is inserted into deeply
L ranging from 0~W are spent, to ensure there are enough materials for push in front of conveying air port.
Since the conveying wind that conveying air port is passed through is not influenced by back pressure directly to the jet stream in gap, will not make distributing device
The goods fluid of top, and change the flow behavior of material, therefore this blow-off valve will not flow automatically as L valves.
The present invention pneumatic solids discharge valve overcome it is existing with inflation or fluidized forms carry out bulk cargo transport the non-of control
Fluctuation of service existing for mechanical feeding device or for example existing non-mechanical conveying device of defect for transporting control ability difference
(such as common L valves, U valves) carries out bulk cargo with inflation or fluidized forms and transports control, and the flow behavior of bulk cargo changes, and
It is easy to transmit the variation of valve inlet and outlet pressure, therefore is susceptible to gravity flow, by the stable operation of valve inlet and outlet pressure influence of fluctuations valve, valve
Bottom is easy accumulation coarse granule.
The pneumatic solids discharge valve no-rotary part of the present invention can overcome abrasion, casey during mechanical valve hot operation
The shortcomings of；It is using frictional force between particle, and particle is entered in the form of moving bed in conveying wind jet area, particle flow characteristics
It does not change, there is good self-lock ability；Blow-off valve material conveying adjustable range is big, can pass through structure design, conveying wind
Mouth group number and operational mode, it is a wide range of to adjust solid material valve conveying capacity；Pneumatic solid material valve, can by jet stream conveying solid material
Overcome coarse granule the problems such as horizontal segment is accumulated, blocked, conveying is suitble to contain coarse grained solid material.
Specific embodiments of the present invention are illustrated below in conjunction with attached drawing.
Embodiment 1
Pneumatic solids discharge valve as depicted in figs. 1 and 2, including valve body 1, distributing device 2, conveying air port 3.
Valve body 1 is the vertical hollow cylinder of upper opening, and bottom plate center location is equipped with a round blanking port 4.
Set in valve body 1 there are one fixed distributing device 2, be the cone of the vertex of a cone upward, inside is hollow-core construction, i.e., only by
The conical surface is constituted, and bottom surface is not closed.Distributing device 2 and valve body 1 are coaxial.
The wide seam of the annular that width is W is constituted between distributing device bottom surface and valve interior wall；Structure between distributing device bottom surface and valve body bottom plate
At the gap that a height is H.
The projecting edge and blanking of the big M of distributing device bottom surface radius ratio blanking port radius namely distributing device on valve body bottom plate
The distance between mouth edge is M.
Body wall lower part is equipped with 6 conveying air ports 3 for being parallel to valve body bottom plate, and is uniformly distributed the circle with body wall
Zhou Shang, for being passed through conveying wind, conveying wind flow direction is to be directed toward blanking port center, and face distributing device and valve by body wall
Gap between body bottom plate.It is L to convey air port and be inserted into the depth of body wall.
When the pneumatic solids discharge valve is designed for conveying bulk cargo of the angle of repose for β：M ＞ Hcot β.
When blow-off valve is run, all 6 conveying air ports can be opened simultaneously, with the increase of conveying air quantity, discharge rates increase
Greatly；Also can 6 conveying air ports be divided into several groups to open in turn, discharge rates is adjusted by the group number opened simultaneously.
Optionally, valve body bottom plate blanking port edge can appropriate protrusion upwards, as shown in figure 3, with improve blow-off valve from
Lock performance.
Optionally, distributing device is the combination of cone and cylinder, and the two basal diameter is equal, the closing of distributing device bottom surface,
As shown in figure 4, the width of the wide seam of annular changes after being worn to avoid conical distributing device base angle, the operation characteristic of valve is caused to produce
Raw deviation.
Optionally, distributing device can also be cylinder, as shown in figure 5, material can at the top of distributing device natural packing Cheng Yuan
For being not easy the material of coking, bonding etc. occurs at high temperature for taper.
Optionally, distributing device is cone, and valve body lower portion is tapered truncated cone-shaped, as shown in fig. 6, to eliminate valve body lower portion
The dead zone in corner is suitable for easily at high temperature occurring the material of coking, bonding etc..
Embodiment 2
Pneumatic solids discharge valve as shown in Figure 7, including valve body 1, distributing device 2, conveying air port 3.
Valve body 1 is the vertical hollow cylinder of upper opening, and cross section is rectangle, and bottom plate center is equipped with a rectangle blanking
Mouthfuls 4, four sides of blanking port 4 it is parallel respectively with 1 four wall of valve body and be M+W at a distance from valve interior wall.
It is set in valve body 1 there are one fixed distributing device 2, is the rectangular pyramid of the vertex of a cone upward, throwing of the vertex of a cone on valve body bottom plate
Shadow is overlapped with bottom plate center.
It is that the wide of W is stitched that four side of distributing device bottom surface constitutes four width with valve interior wall；Distributing device bottom surface and valve body bottom plate
Between constitute a height be H gap.
When the pneumatic solids discharge valve is designed for conveying bulk cargo of the angle of repose for β, meet：M ＞ Hcot β.
Body wall lower part is equipped with 5 conveying air ports 3 for being parallel to valve body bottom plate per side, defeated for being passed through conveying wind
Flow direction blow to be directed toward blanking port center, and the gap between face distributing device and valve body bottom plate by body wall.Conveying
The depth that body wall is inserted into air port is L.
When blow-off valve is run, all conveying air ports can be opened simultaneously, and air quantity is conveyed by adjusting to adjust discharge rates；
Can conveying air port be divided into several groups to open in turn, discharge rates are adjusted by the group number opened simultaneously.
Embodiment 3
Pneumatic solids discharge valve as shown in Figure 8 and Figure 9, structure is similar to Example 2, the difference is that valve body bottom plate
On set there are two blanking port, body wall lower part is equipped with two groups, every group of 5 conveying air ports, and distributing device is the trigone of bottom rectangle
Column distributing device, long side is parallel with body wall, and both ends of the surface are combined as a whole with valve body.
When opening different groups of conveying air port, material can be sent into different blanking ports, to which material can be realized to not
With the pneumatic distribution of downstream reservoir.
Distributing device is the triangular prism distributing device of bottom rectangle, eliminates pneumatic solids discharge valve without the dead of conveying air port region
Area.
Embodiment 4
Pneumatic solids discharge valve as shown in figs, structure is similar to Example 2, the difference is that valve body-side
Wall lower part is equipped with two groups, every group of 5 conveying air ports, and distributing device is the triangular prism distributing device of bottom rectangle, long side and body wall
Parallel, both ends of the surface are combined as a whole with valve body both ends of the surface.
The pneumatic solids discharge valve of such structure type can be spliced by modular and realize pneumatic solids discharge valve discharge
Popularization is measured, structure of modification is convenient for.
Embodiment 5
Pneumatic solids discharge valve as shown in Figure 10, structure is similar to Example 3, the difference is that on valve body bottom plate
It is respectively equipped with a distributing device above two blanking ports, can be separately designed with parameters such as two distributing devices relevant W, H, L, from
And can be more flexible pneumatic distribution of the realization material with the larger discharge rates of difference to different downstream reservoirs.
Embodiment 6
Pneumatic solids discharge valve as is illustrated by figs. 11 and 12, structure is similar to Example 1, the difference is that conveying wind
The part that mouth gos deep into valve body is the arc coincideing with valve interior wall shape, and every section of arc is equipped with multiple conveying wind snouts, can be same
When spray multiple jets, to can avoid conveying air port control area between dead zone, especially suitable for easy coking at high temperature
Material.
It optionally, can in the gap between distributing device and valve body bottom plate in order to reduce the influence between each conveying air port
Partition board 5 is arranged, gap is separated into multiple sector regions.
Embodiment 7
Pneumatic solids discharge valve as described in Figure 13, structure is similar to Example 1, the difference is that, body base is set
Have and loosens wind 6, the particle flow for strengthening conveying air port air port near zone, the object especially suitable for easy coking at high temperature
Material.
In this way, the present invention proposes following scheme：
1, a kind of pneumatic solids discharge valve for bulk cargo, including：
Valve body has side wall and bottom plate, and the intermediate position of bottom plate is provided with blanking port；
Distributing device；
It is parallel at least one conveying air port of bottom plate,
Wherein：
Distributing device is arranged right over blanking port and the upper table of the bottom surface and bottom plate of distributing device right over the blanking port
The gap that height is H is constituted between face, projecting edge of the distributing device on bottom plate and the minimum range between blanking port edge are
M；
Minimum range between distributing device and side wall is W；
The conveying air port for conveying wind, conveying tuyere structure at its convey the flow direction of wind be substantially horizontally from
Side wall is via the gap towards blanking port；And
To specific bulk cargo, meet M ＞ Hcot β, wherein β is the angle of repose of bulk cargo.
2, according to 1 pneumatic solids discharge valve, wherein：
Convey length L ranging from 0~W of the air port apart from side wall.
3, according to 1 pneumatic solids discharge valve, wherein：
The edge of the blanking port is provided with towards annular projection outstanding in the gap.
4, according to pneumatic solids discharge valve any in 1-3, wherein：
The valve body is cylindrical shape, and the pneumatic solids discharge valve includes a round blanking port, the pneumatic solid row
It is circular distributing device that material valve, which includes a bottom surface, and distributing device, blanking port are in a rotationally symmetrical arrangement about the central axis of valve body.
5, according to 4 pneumatic solids discharge valve, wherein：
The distributing device is cone, the bottom surface of the bottom surface of cone as distributing device.
6, according to 4 pneumatic solids discharge valve, wherein：
The distributing device is cylinder；Or the upper and lower part of the distributing device is the cone and cylinder to adjoin one another
Body.
7, according to pneumatic solids discharge valve any in 4-6, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, and the multiple conveying air port is around the blanking port in circumferencial direction
On angularly arranged for interval.
8, according to pneumatic solids discharge valve any in 1-3, wherein：
The valve body is rectangular drum like, and the pneumatic solids discharge valve includes a rectangle blanking port, the pneumatic solid
Blow-off valve include a bottom surface be rectangle distributing device, the centre of moment of the blanking port, the distributing device bottom surface the equal position of the centre of moment
In on the central axis of valve body, and the four of blanking port put down with four side walls of valve body respectively in the four of the bottom surface of, distributing device
Row.
9, according to 8 pneumatic solids discharge valve, wherein：
The distributing device is rectangular pyramid, and the bottom surface of rectangular pyramid is the bottom surface of distributing device.
10, according to 8 pneumatic solids discharge valve, wherein：
The distributing device includes quadrangular, and the bottom surface of quadrangular is the bottom surface of distributing device.
11, according to pneumatic solids discharge valve any in 8-10, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, and the multiple conveying air port, which is divided into, is arranged in the four of valve body
Four groups of a side wall, the conveying air port in each group are equidistantly spaced from along side wall.
12, according to pneumatic solids discharge valve any in 8-10, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, and the multiple conveying air port, which is divided into, is arranged in the two of valve body
Two groups of a parallel side wall, the conveying air port in each group are equidistantly spaced from along side wall.
13, according to pneumatic solids discharge valve any in 1-3, wherein：
The valve body be rectangular drum like, the pneumatic solids discharge valve include parallel interval open arrangement long side it is parallel to each other
Two rectangle blanking ports, and four sides of each blanking port are parallel with four side wall difference of valve body, the pneumatic solid row
Material valve includes the distributing device that a bottom surface is rectangle, and two long side side walls of long side and valve body of the bottom surface of distributing device are parallel, cloth
The both ends of the surface of device integrally combine with valve body.
14, according to 13 pneumatic solids discharge valve, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, and the multiple conveying air port, which is divided into, is arranged in the two of valve body
Two groups of a parallel side wall, the conveying air port in each group are equidistantly spaced from along side wall, two parallel sides of the valve body
Wall is parallel to the long side of rectangle blanking port.
15, according to 13 or 14 pneumatic solids discharge valve, wherein：
The blanking port is two identical rectangle blanking ports that parallel interval opens arrangement, and two rectangle blanking ports are in bottom plate
On relative position it is identical.
16, according to pneumatic solids discharge valve any in 1-3, wherein：
The pneumatic solids discharge valve includes a rectangle blanking port, and the long side side wall of the long side of blanking port and valve body is flat
Row, short side and the valve body of blanking port are combined as a whole, and the pneumatic solids discharge valve includes the distributing device that a bottom surface is rectangle,
The long side of the bottom surface of distributing device is parallel with two long side side walls of valve body, and both ends of the surface and the valve body both ends of the surface of distributing device are combined into one
Body.
17, according to 16 pneumatic solids discharge valve, wherein：
The blanking port is that long side is parallel to valve body long side side wall, the rectangle blanking port that short side is combined as a whole with valve body,
Rectangle blanking port center is overlapped with valve body center.
18, according to 13 and 16 pneumatic solids discharge valve, wherein：
The distributing device is the triangular prism distributing device of bottom surface rectangle.
19, according to pneumatic solids discharge valve any in 1-3, wherein：
The valve body be rectangular drum like, the pneumatic solids discharge valve include parallel interval open arrangement long side it is parallel to each other
Two rectangle blanking ports, the pneumatic solids discharge valve include two bottom surfaces be rectangle distributing device, be separately positioned on correspondence
Rectangle blanking port top, and the four of each blanking port in the four of the bottom surface of, distributing device with four side walls of valve body
It is parallel respectively.
20, according to 19 pneumatic solids discharge valve, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, and the multiple conveying air port, which is divided into, is arranged in the two of valve body
Two groups of a parallel side wall, the conveying air port in each group are equidistantly spaced from along side wall, two parallel sides of the valve body
Wall is parallel to the long side of rectangle blanking port.
21, according to 7 pneumatic solids discharge valve, wherein：
Each conveying air port is the spray-hole being arranged in air-supply header, and air-supply header has at least the one of its air feed
A ajutage, the air-supply header are and the body concentric annulus of valve.
22, according to 7 pneumatic solids discharge valve, wherein：
Each conveying air port is the spray-hole being arranged in air-supply header, each air-supply header has to its air feed
At least one ajutage, the air-supply header are the be spaced apart in a circumferential direction and body concentric multiple arcs section of valve.
23, according to 22 pneumatic solids discharge valve, wherein：
Multiple partition boards, the multiple partition board are provided in the gap between the bottom surface of distributing device and the upper surface of bottom plate
The gap is divided into multiple identical sector regions, there are one or more segmental arcs in each sector region.
24, according to pneumatic solids discharge valve any in 11,12,14,20, wherein：
Each conveying air port is the spray-hole being arranged in air-supply header, each air-supply header has to its air feed
At least one ajutage.
25, according to 1 pneumatic solids discharge valve, wherein：
It is blown by a corresponding ajutage in each conveying air port.
26, according to pneumatic solids discharge valve any in 1-25, wherein：
It between the blanking port and the side wall, is provided at the bottom plate and loosens air port, loosened for being blown up
Wind.
27, a kind of utilize goes out the method for bulk cargo according to pneumatic solids discharge valve flat raft any in 1-25, including walks as follows
Suddenly：
Stop to conveying air port air feed so that bulk cargo is in self-locking state to close pneumatic solids discharge valve；With
To conveying air port air feed to open pneumatic solids discharge valve.
28, according to 27 method, wherein：
To conveying air port air feed to open the step of pneumatic solids discharge valve the volume of air supply for including adjusting into conveying air port.
29, according to 27 method, wherein：
Include the different air feed for conveying air port of control to air port air feed is conveyed to open the step of pneumatic solids discharge valve
Whether and/or air feed duration.
30, according to 27 method, wherein：
It is provided at the bottom plate between the blanking port and the side wall and loosens air port；
Include being used to blow upwards from the loosening air port to air port air feed is conveyed to open the step of pneumatic solids discharge valve
Send loosening wind.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding these embodiments can be changed without departing from the principles and spirit of the present invention, the scope of the present invention by
The following claims and their equivalents limit.
Claims (29)
1. a kind of pneumatic solids discharge valve for bulk cargo, including：
Valve body has side wall and bottom plate, and the intermediate position of bottom plate is provided with blanking port；
Distributing device；
It is parallel at least one conveying air port of bottom plate,
Wherein：
Distributing device be arranged right over blanking port and the bottom surface of distributing device right over the blanking port and the upper surface of bottom plate it
Between constitute the gap that height is H, projecting edge of the distributing device on bottom plate and the minimum range between blanking port edge are M；
Minimum range between distributing device and side wall is W；
For conveying wind, it is substantially horizontally from side wall that conveying tuyere structure conveys the flow direction of wind at it in the conveying air port
Via the gap towards blanking port；And to specific bulk cargo, meeting M ＞ Hcot β, wherein β is the angle of repose of bulk cargo,
The edge of the blanking port is provided with towards annular projection outstanding in the gap.
2. pneumatic solids discharge valve according to claim 1, wherein：
Convey length L range 0~W of the air port apart from side wall.
3. the pneumatic solids discharge valve according to any one of claim 1-2, wherein：
The valve body is cylindrical shape, and the pneumatic solids discharge valve includes a round blanking port, the pneumatic solids discharge valve
It is circular distributing device including a bottom surface, distributing device, blanking port are in a rotationally symmetrical arrangement about the central axis of valve body.
4. pneumatic solids discharge valve according to claim 3, wherein：
The distributing device is cone, the bottom surface of the bottom surface of cone as distributing device.
5. pneumatic solids discharge valve according to claim 3, wherein：
The distributing device is cylinder；Or the upper and lower part of the distributing device is the cone and cylinder to adjoin one another.
6. the pneumatic solids discharge valve according to any one of claim 4-5, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, the multiple conveying air port around the blanking port in a circumferential direction etc.
Angle arranged for interval.
7. the pneumatic solids discharge valve according to any one of claim 1-2, wherein：
The valve body is rectangular drum like, and the pneumatic solids discharge valve includes a rectangle blanking port, the pneumatic solids discharge
Valve includes the distributing device that a bottom surface is rectangle, the centre of moment of the blanking port, the distributing device the centre of moment of bottom surface be respectively positioned on valve
On the central axis of body, and the four of blanking port are parallel with four side wall difference of valve body in the four of the bottom surface of, distributing device.
8. pneumatic solids discharge valve according to claim 7, wherein：
The distributing device is rectangular pyramid, and the bottom surface of rectangular pyramid is the bottom surface of distributing device.
9. pneumatic solids discharge valve according to claim 7, wherein：
The distributing device includes quadrangular, and the bottom surface of quadrangular is the bottom surface of distributing device.
10. the pneumatic solids discharge valve according to any one of claim 8-9, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, and the multiple conveying air port is divided into four sides for being arranged in valve body
Four groups of wall, the conveying air port in each group are equidistantly spaced from along side wall.
11. the pneumatic solids discharge valve according to any one of claim 8-9, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, the multiple conveying air port be divided into be arranged in two of valve body it is flat
Two groups of capable side wall, the conveying air port in each group are equidistantly spaced from along side wall.
12. the pneumatic solids discharge valve according to any one of claim 1-2, wherein：
The valve body be rectangular drum like, the pneumatic solids discharge valve include parallel interval open arrangement long side it is parallel to each other two
A rectangle blanking port, and four sides of each blanking port are parallel with four side wall difference of valve body, the pneumatic solids discharge valve
Including the distributing device that a bottom surface is rectangle, two long side side walls of long side and valve body of the bottom surface of distributing device are parallel, distributing device
Both ends of the surface integrally combine with valve body.
13. pneumatic solids discharge valve according to claim 12, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, the multiple conveying air port be divided into be arranged in two of valve body it is flat
Two groups of capable side wall, the conveying air port in each group are equidistantly spaced from along side wall, and two parallel side walls of the valve body are flat
Row is in the long side of rectangle blanking port.
14. pneumatic solids discharge valve according to claim 13, wherein：
The blanking port is two identical rectangle blanking ports that parallel interval opens arrangement, and two rectangle blanking ports are on bottom plate
Relative position is identical.
15. the pneumatic solids discharge valve according to any one of claim 1-2, wherein：
The pneumatic solids discharge valve includes a rectangle blanking port, and the long side of blanking port is parallel with the long side side wall of valve body,
The short side of blanking port is combined as a whole with valve body, and the pneumatic solids discharge valve includes the distributing device that a bottom surface is rectangle, cloth
The long side of the bottom surface of glassware is parallel with two long side side walls of valve body, and both ends of the surface and the valve body both ends of the surface of distributing device are combined as a whole.
16. pneumatic solids discharge valve according to claim 15, wherein：
The blanking port is that long side is parallel to valve body long side side wall, the rectangle blanking port that short side is combined as a whole with valve body, rectangle
Blanking port center is overlapped with valve body center.
17. pneumatic solids discharge valve according to claim 15, wherein：
The distributing device is the triangular prism distributing device of bottom surface rectangle.
18. the pneumatic solids discharge valve according to any one of claim 1-2, wherein：
The valve body be rectangular drum like, the pneumatic solids discharge valve include parallel interval open arrangement long side it is parallel to each other two
A rectangle blanking port, the pneumatic solids discharge valve include the distributing device that two bottom surfaces are rectangle, are separately positioned on corresponding square
The top of shape blanking port, and the four of each blanking port distinguish with four side walls of valve body in the four of the bottom surface of, distributing device
It is parallel.
19. pneumatic solids discharge valve according to claim 18, wherein：
Pneumatic solids discharge valve includes multiple conveying air ports, the multiple conveying air port be divided into be arranged in two of valve body it is flat
Two groups of capable side wall, the conveying air port in each group are equidistantly spaced from along side wall, and two parallel side walls of the valve body are flat
Row is in the long side of rectangle blanking port.
20. pneumatic solids discharge valve according to claim 6, wherein：
Each conveying air port is the spray-hole being arranged in air-supply header, and air-supply header has to be sent at least one of its air feed
Air hose, the air-supply header are and the body concentric annulus of valve.
21. pneumatic solids discharge valve according to claim 6, wherein：
Each conveying air port is the spray-hole being arranged in air-supply header, each air-supply header has to its air feed at least
One ajutage, the air-supply header are the be spaced apart in a circumferential direction and body concentric multiple arcs section of valve.
22. pneumatic solids discharge valve according to claim 21, wherein：
Multiple partition boards are provided in the gap between the bottom surface of distributing device and the upper surface of bottom plate, the multiple partition board is to incite somebody to action
The gap is divided into multiple identical sector regions, has one or more segmental arcs in each sector region.
23. the pneumatic solids discharge valve according to claim 13, any one of 19, wherein：
Each conveying air port is the spray-hole being arranged in air-supply header, each air-supply header has to its air feed at least
One ajutage.
24. pneumatic solids discharge valve according to claim 1, wherein：
It is blown by a corresponding ajutage in each conveying air port.
25. the pneumatic solids discharge according to claim 1,2,4,5,8,9,13,14,16,17,19-22, any one of 24
Valve, wherein：
Between the blanking port and the side wall, it is provided at the bottom plate and loosens air port, for being blown up loosening wind.
26. a kind of method using the pneumatic solids discharge valve discharge bulk cargo according to any one of claim 1-25, packet
Include following steps：
Stop to conveying air port air feed so that bulk cargo is in self-locking state to close pneumatic solids discharge valve；With to conveying air port
Air feed is to open pneumatic solids discharge valve.
27. the method according to claim 11, wherein：
To conveying air port air feed to open the step of pneumatic solids discharge valve the volume of air supply for including adjusting into conveying air port.
28. the method according to claim 11, wherein：
Include whether controlling the air feeds in different conveying air ports to air port air feed is conveyed to open the step of pneumatic solids discharge valve
And/or air feed duration.
29. the method according to claim 11, wherein：
It is provided at the bottom plate between the blanking port and the side wall and loosens air port；
Include being used to be blown up pine from the loosening air port to air port air feed is conveyed to open the step of pneumatic solids discharge valve
Dynamic wind.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510266291.3A CN106275933B (en) | 2015-05-22 | 2015-05-22 | The method of pneumatic solids discharge valve and discharge bulk cargo |
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| CN201510266291.3A CN106275933B (en) | 2015-05-22 | 2015-05-22 | The method of pneumatic solids discharge valve and discharge bulk cargo |
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| CN106275933B true CN106275933B (en) | 2018-09-04 |
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| CN201510266291.3A Active CN106275933B (en) | 2015-05-22 | 2015-05-22 | The method of pneumatic solids discharge valve and discharge bulk cargo |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109051383A (en) * | 2018-09-04 | 2018-12-21 | 濮阳市鸿宇压力容器有限公司 | A kind of novel center feeder |
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| CN102278744A (en) * | 2010-06-13 | 2011-12-14 | 中国科学院工程热物理研究所 | Air distribution method of primary air for circulating fluidized bed boiler |
| CN204346862U (en) * | 2015-01-04 | 2015-05-20 | 安徽理工大学 | A kind of solid particle angle of repose measurement mechanism |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3384177B2 (en) * | 1995-02-24 | 2003-03-10 | 日本鋼管株式会社 | Powder dispenser |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB531172A (en) * | 1939-03-28 | 1940-12-31 | Leonard Satchwell | Improvements in and relating to boilers |
| GB2101980A (en) * | 1981-06-12 | 1983-01-26 | Moeller Hamburg Gmbh Co Kg | Metered discharge of material from fluidized bed |
| CN1541178A (en) * | 2001-06-13 | 2004-10-27 | Containerised handling of bulk materials and appts therefor | |
| CN101199949A (en) * | 2006-12-14 | 2008-06-18 | 杨建勋 | Miller residue discharging device |
| CN201002879Y (en) * | 2007-01-31 | 2008-01-09 | 陆信 | Activating feeder |
| CN201508174U (en) * | 2009-09-19 | 2010-06-16 | 山西太钢不锈钢股份有限公司 | Portable and adjustable device for measuring angle of repose |
| CN102278744A (en) * | 2010-06-13 | 2011-12-14 | 中国科学院工程热物理研究所 | Air distribution method of primary air for circulating fluidized bed boiler |
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|---|---|
| CN106275933A (en) | 2017-01-04 |
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