CN106275933A - Pneumatic solids discharge valve and the method discharging bulk cargo - Google Patents
Pneumatic solids discharge valve and the method discharging bulk cargo Download PDFInfo
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- CN106275933A CN106275933A CN201510266291.3A CN201510266291A CN106275933A CN 106275933 A CN106275933 A CN 106275933A CN 201510266291 A CN201510266291 A CN 201510266291A CN 106275933 A CN106275933 A CN 106275933A
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Abstract
The present invention relates to a kind of pneumatic solids discharge valve for bulk cargo, including: valve body, there is sidewall and base plate, the middle part of base plate is provided with blanking port；Distributing device；It is parallel at least one conveying air port of base plate, wherein: distributing device is arranged between bottom surface and the upper surface of base plate of the distributing device directly over blanking port and directly over this blanking port and constitutes the gap that height is H, and the minimum range between distributing device projecting edge and blanking port edge on base plate is M；Minimum range between distributing device and sidewall is W；Described conveying air port is used for carrying wind, conveying tuyere structure become the flow direction of its conveying wind for substantially horizontally from sidewall via described gap towards blanking port；And to specific bulk cargo, meet M ＞ H cot β, wherein, β is the angle of repose of bulk cargo.
Description
Technical field
The present invention relates to bulk cargo and transport field, a kind of solids discharge valve and the method discharging bulk cargo.
Background technology
Being discharged from the bottom of a container by bulk cargo is a kind of common industrial requirement, sets at container bottom
Putting removal device is general design.Removal device does not need only have closes and open function, also reliably
Want to regulate the rate of discharge of material.Bulk cargo transports control and mechanical type can be divided into transport by operation logic
Control device and non-mechanical transports control device.Wherein mechanical type transports control device, such as center
Batcher, screw(-type) feeder, Star-like unloader, cylinder etc.；Non-mechanical transports control device, example
Such as L valve, U valve etc..
Under normal temperature condition, mechanical removal device is the most complete, can meet the row of general industry
Material demand.In recent years, high-temperature machinery class removal device has developed, but problem is encountered that, this
Type high temp removal device exists that structure is complicated, expensive, functional reliability is poor, maintenance difficult, rotation
Mechanism needs shortcomings such as cooling down, easy to wear.
Non-mechanical transports control device and uses gas push bulk movement, therefore may be implemented in high temperature ring
Border transports bulk cargo simply and reliably, due to without dynamic component, thus simple in construction, flexible operation,
And it is cheap for manufacturing cost.Non-mechanical the most more typically transports control device L valve, U valve etc..
L valve is considered as controlled valve, can regulate and control bulk cargo and transport, but, L valve fluctuation of service,
Building bridge and the phenomenon such as aeroembolism easily occurs in standpipe, and to be susceptible to gravity flow be its critical defect.U valve is
Loop seal, is widely used in recirculating fluidized bed, but conveying and control ability is by inlet and outlet pressure
Impact is relatively big, and the regulation and the control ability that transport bulk cargo are extremely limited, and are not suitable for coarse granule material
Transport.
Single-point is mainly used to control conveying capacity, such as machinery additionally, existing bulk cargo transports control device
Formula transports control device and controls conveying capacity by rotatable parts running frequency, and non-mechanical transports control dress
Putting general by Fluidization wind rate control conveying capacity, therefore the span of control of conveying capacity is relatively limited.
Summary of the invention
It is an object of the invention to overcome existing bulk cargo to transport the defect controlling device, it is provided that one can be at height
In temperature environment, the pneumatic solids discharge valve of controlled stable operation, has auto-lock function, and conveying capacity can be flexible
Regulation and control, and conveying capacity range of accommodation is big.
For reaching above-mentioned purpose, the present invention is proposed.
An aspect according to an embodiment of the invention, it is proposed that a kind of pneumatic solid for bulk cargo is arranged
Material valve, including: valve body, there is sidewall and base plate, the middle part of base plate is provided with blanking port；Cloth
Glassware；It is parallel at least one conveying air port of base plate, wherein: distributing device is arranged on blanking port and just goes up
Constituting height between bottom surface and the upper surface of base plate of side and the distributing device directly over this blanking port is H
Gap, the minimum range between distributing device projecting edge and blanking port edge on base plate is M；
Minimum range between distributing device and sidewall is W；Described conveying air port is used for carrying wind, carries air port
Be configured to its conveying wind flow direction for substantially horizontally from sidewall via described gap towards blanking
Mouthful；And to specific bulk cargo, meet M ＞ H cot β, wherein, β is the angle of repose of bulk cargo.
Alternatively, the length L scope of conveying air port distance sidewall is 0～W.
Alternatively, the edge of described blanking port is provided with in described gap prominent annular projection.
Alternatively, described valve body is cylindric, and described pneumatic solids discharge valve includes a circular blanking
Mouthful, described pneumatic solids discharge valve includes that a bottom surface is circular distributing device, distributing device, blanking port
Central axis about valve body is in a rotationally symmetrical arrangement.Alternatively, described distributing device is cone, circular cone
The bottom surface of body is as the bottom surface of distributing device.Alternatively, described distributing device is cylinder；Or described cloth
The upper and lower of glassware is the cone and cylinder adjoined one another.Alternatively, pneumatic solids discharge
Valve includes multiple conveying air port, and the plurality of conveying air port is around described blanking port isogonism in a circumferential direction
Degree interval is arranged.
Alternatively, described valve body is rectangular drum like, and described pneumatic solids discharge valve includes that a rectangle falls
Material mouth, described pneumatic solids discharge valve includes that a bottom surface is the distributing device of rectangle, described blanking port
The centre of moment, the centre of moment of bottom surface of described distributing device are respectively positioned on the central axis of valve body, and the four of blanking port
Limit, distributing device four limits of bottom surface all the most parallel with the four of valve body sidewalls.Alternatively, described cloth
Glassware is rectangular pyramid, and the bottom surface of rectangular pyramid is the bottom surface of distributing device.Alternatively, described distributing device includes
Quadrangular, the bottom surface of quadrangular is the bottom surface of distributing device.Alternatively, pneumatic solids discharge valve includes many
Individual conveying air port, the plurality of conveying air port is divided into four groups of four sidewalls being arranged in valve body,
Conveying air port in each group is equidistantly spaced from along sidewall.Alternatively, pneumatic solids discharge valve includes many
Individual conveying air port, the plurality of conveying air port is divided into two the parallel sidewalls being arranged in valve body
Two groups, the conveying air port in each group is equidistantly spaced from along sidewall.
Alternatively, described valve body is rectangular drum like, and described pneumatic solids discharge valve includes that parallel interval is opened
Long limit two the rectangle blanking ports parallel to each other arranged, and four limits of each blanking port and valve body
Four sidewalls are the most parallel.Alternatively, described pneumatic solids discharge valve includes a rectangle blanking port,
And the long limit of blanking port is parallel with the long side wall of valve body, the minor face of blanking port is combined as a whole with valve body.
Alternatively, described pneumatic solids discharge valve includes the triangular prism distributing device that a bottom surface is rectangle, cloth
Two the long side walls in the long limit of the bottom surface of device and valve body are parallel, the both ends of the surface of distributing device and valve body both ends of the surface
It is combined as a whole.Alternatively, pneumatic solids discharge valve includes multiple conveying air port, the plurality of conveying
Air port is divided into two groups of two the parallel sidewalls being arranged in valve body, the conveying air port in each group
Being equidistantly spaced from along sidewall, two parallel sidewalls of described valve body are parallel to the long limit of rectangle blanking port.
Alternatively, described blanking port is two identical rectangle blanking ports that parallel interval opens layout, two squares
The shape blanking port relative position on base plate is identical.
Alternatively, described valve body is rectangular drum like, and described pneumatic solids discharge valve includes that parallel interval is opened
Long limit two the rectangle blanking ports parallel to each other arranged, described pneumatic solids discharge valve includes at the bottom of two
Face is the distributing device of rectangle, is separately positioned on the top of the rectangle blanking port of correspondence, and each blanking
Mouthful four limits, four limits of bottom surface of distributing device all distinguish the most parallel with the four of valve body sidewalls.Alternatively,
Pneumatic solids discharge valve includes that multiple conveying air port, the plurality of conveying air port are divided into and is arranged in valve
Two groups of two parallel sidewalls of body, the conveying air port in each group is equidistantly spaced from along sidewall, institute
Two the parallel sidewalls stating valve body are parallel to the long limit of rectangle blanking port.
Alternatively, each conveying air port is the spray-hole being arranged in air-supply header, air-supply header tool
At least one ajutage of its air feed oriented, described air-supply header is annulus body concentric with valve.
Alternatively, 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, and described air-supply header is for be spaced in a circumferential direction
The body concentric multiple segmental arcs of open and valve.Alternatively, the bottom surface of distributing device and the upper surface of base plate
Between described gap in be provided with multiple dividing plate, the plurality of dividing plate is to be divided into multiple by described gap
Identical sector region, has one or more segmental arc in each sector region.
Alternatively, in the scheme of conveying air port packet, each conveying air port is for being arranged on air-supply header
On spray-hole, each air-supply header there is at least one ajutage to its air feed.
Alternatively, blown by a corresponding ajutage in each conveying air port.
Alternatively, between described blanking port and described sidewall, at described base plate, it is provided with loosening air port,
For being blown up loosening wind.
According to an embodiment of the invention on the other hand, it is proposed that a kind of utilize above-mentioned pneumatic solid to arrange
The method that material valve flat raft goes out bulk cargo, comprises the steps: to stop to conveying air port air feed so that bulk cargo
It is in self-locking state to close pneumatic solids discharge valve；With to conveying air port air feed to open pneumatic solid
Blow-off valve.
Alternatively, include that regulation enters to conveying air port air feed with the step opening pneumatic solids discharge valve
The wind supply quantity in conveying air port.
Alternatively, include controlling difference with the step opening pneumatic solids discharge valve to conveying air port air feed
Conveying air port air feed whether and/or air feed duration.
Alternatively, between described blanking port and described sidewall, loosening air port at described base plate, it is provided with；
To conveying air port air feed with the step opening pneumatic solids discharge valve include from described loosening air port for
It is blown up loosening wind.
Accompanying drawing explanation
Fig. 1 is the front elevational schematic of the pneumatic solids discharge valve according to the embodiment of the present invention 1.
Fig. 2 is the schematic top plan view of the pneumatic solids discharge valve according to the embodiment of the present invention 1.
Fig. 3 is the front elevational schematic of the pneumatic solids discharge valve of the another kind according to the embodiment of the present invention 1.
Fig. 4 is the front elevational schematic of another the pneumatic solids discharge valve according to the embodiment of the present invention 1.
Fig. 5 is the front elevational schematic of another the pneumatic solids discharge valve according to the embodiment of the present invention 1.
Fig. 6 is the front elevational schematic of another the pneumatic solids discharge valve according to the embodiment of the present invention 1.
Fig. 7 is the schematic top plan view of the pneumatic solids discharge valve according to the embodiment of the present invention 2.
Fig. 8 is the front elevational schematic of the pneumatic solids discharge valve according to the embodiment of the present invention 3,4.
Fig. 9 is the schematic top plan view of the pneumatic solids discharge valve according to the embodiment of the present invention 3.
Figure 10 is the schematic top plan view of the pneumatic solids discharge valve according to the embodiment of the present invention 4.
Figure 11 is the front elevational schematic of the pneumatic solids discharge valve according to the embodiment of the present invention 5.
Figure 12 is the front elevational schematic of the pneumatic solids discharge valve according to the embodiment of the present invention 6.
Figure 13 is the schematic top plan view of the pneumatic solids discharge valve according to the embodiment of the present invention 6.
Figure 14 is the front elevational schematic of the pneumatic solids discharge valve according to the embodiment of the present invention 7.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, technical scheme is made the most concrete
Explanation.In the description, same or analogous drawing reference numeral indicates same or analogous parts.Following
Explanation to embodiment of the present invention is intended to solve the present general inventive concept of the present invention referring to the drawings
Release, and be not construed as a kind of restriction 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 circle, include
Rectangle enters in interior polygon and shaped form etc., bulk cargo portion from it；Valve body base plate be provided with to
A few blanking port, is used for discharging material.Blanking port can be circular, rectangle and other shape.
Valve body is provided with at least one fixing distributing device, is used for supporting material and uniformly being led by material
To blanking port direction.Distributing device is vertex of a cone cone upward, the polygonal pyramid including rectangular pyramid
Solid figure that body, cone are combined with cylinder etc., and bottom is its cross-section.At the bottom of distributing device
Between face and valve interior wall, at least local constitutes the wide seam that width is W, is available for material and falls through this.Cloth
Constitute the gap that a height is H between glassware bottom surface and valve body base plate, be available for material and flow to blanking port through this.
Distributing device is positioned at directly over blanking port, and the projection that distributing device is on valve body base plate is completely covered blanking port,
And projected area is more than blanking port area；When there being multiple blanking port, can be above each blanking port
It is equipped with a distributing device, or the projection that distributing device is on base plate can cover multiple blanking simultaneously
Mouthful.Minimum range between distributing device projecting edge and blanking port edge on valve body base plate is M.
Preferably, distributing device projection of shape on base plate and blanking port are shaped as similar figures, and center superposition,
As the two be circular concentric, the difference of radius be M, or be two of M for four corresponding back gauges
Rectangle.The bottom surface of distributing device can be solid, it is also possible to is hollow.
Body wall bottom is provided with at least conveying air port being parallel to valve body base plate, is used for being passed through defeated
Air-supply, conveying wind flow direction is to be pointed to blanking port center by body wall, and just to distributing device and valve
Gap between body base plate.It is L that the degree of depth of body wall is inserted in conveying air port；L can be 0, i.e.
Conveying air port is opened on the internal face of body wall.Preferably, conveying air port is many, is uniformly distributed
At valve body periphery.
To specific bulk cargo, all there is angle beta of specifically stopping.This blow-off valve is suitable for for specific bulk cargo
Condition be: M ＞ H cot β.Preferably, the degree of depth L scope of body wall is inserted in conveying air port
It is 0～W.
When adding bulk cargo from valve body top, bulk cargo is along distributing device landing, through distributing device bottom surface and valve body
Wide seam between inwall, is accumulated to bottom distributing device and in gap between valve body base plate, front end forms one
The individual inclined-plane with the horizontal β angle.Owing to distributing device bottom edge is thrown at horizontal plane with blanking port edge
Minimum range M ＞ H cot β on shadow, the inclined-plane that therefore material natural packing is formed will not arrive
It is in self-locking state, transfixion under material mouth, namely the frictional force effect that bulk cargo is between material particles.
Visible, blow-off valve has auto-lock function.
When needing discharge, it is passed through conveying wind by conveying air port, forms jet, change conveying airduct
Frictional force between material particles in fluerics so that it is angle of repose diminishes；Material is under conveying wind conveying
Enter blanking port, and discharge blow-off valve under gravity.Along with conveying being passed through of wind, valve body with
Material between distributing device slit enters conveying airduct fluerics with moving bed form under gravity,
Thus formed and continue discharge.Owing under gravity and hydrostatic pressure, material enters conveying with moving bed form
In airduct fluerics, the fluidization characteristic of material with conveying run with stopping and changing, therefore when
When conveying is only becalmed, the material between slit recovers natural packing state, discharge under frictional force effect
Valve stops discharge.Hereby it is achieved that the opening and closing of blow-off valve.
The regulation of discharge rates can be realized by two ways:
One is wind supply quantity namely the effluxvelocity changing single conveying air port, thus changes the defeated of conveying wind
Sending inventory, wind supply quantity is the biggest, and discharge rates is the highest；
Two is to be disposed with many group conveying air ports, the conveying air port group number ventilated by control on valve body simultaneously
Regulate discharge rates；Such as first turn on a conveying air port, open while being then shut off this airduct
Open the adjacent or conveying air port of offside, or open several groups of conveying air ports every time simultaneously, close other several groups
Conveying air port；The duration opening and closing conveying air port can also be adjusted flexibly as required.
Additionally, the material that the physical dimension of blow-off valve itself also contributes to when single conveying air port is opened is defeated
Sending ability, in general: slit height H is the highest, slit width W is the widest, and conveying air port
Insertion depth L is the least, and discharge rates is the highest.Wherein, the insertion depth in conveying air port is the deepest, jet
Push the material into blanking port the fewest；The present invention limits conveying air port insertion depth L scope as 0～W,
To ensure that conveying front, air port has enough materials to be available for pushing.
The conveying wind being passed through due to conveying air port is the straight jet to gap, is not affected by back pressure, the most not
Can make the goods fluid above distributing device, and change the flow behavior of material, therefore this blow-off valve will not
Gravity flow occurs as L valve.
The pneumatic solids discharge valve of the present invention overcomes that existing to carry out bulk cargo defeated with inflation or fluidized forms
Transport the fluctuation of service that the non-mechanical feeding device controlled exists or the defect transporting control ability difference
If existing non-mechanical conveyer device (such as conventional L valve, U valve) is with inflation or fluidized forms
Carrying out bulk cargo and transport control, the flow behavior of bulk cargo changes, and easily transmission valve inlet and outlet pressure
, the most easily there is gravity flow, by bottom valve inlet and outlet pressure influence of fluctuations valve stable operation, valve in change
Easily accumulate coarse granule.
The pneumatic solids discharge valve no-rotary part of the present invention, during can overcoming mechanical valve hot operation
The shortcomings such as abrasion, jam；It utilizes frictional force between granule, and granule enters conveying with moving bed form
In wind jet area, particle flow characteristics does not change, and has good self-lock ability；Discharge
Valve material conveying range of accommodation is big, can be designed by structure, carry air port group number and operational mode, big model
Enclose regulation solid material valve conveying capacity；Pneumatic solid material valve passes through jet transfer solid material, can overcome thick
Granule, in problems such as horizontal segment accumulation, blockings, is suitable for conveying containing coarse grained solid material.
The specific embodiment of the present invention is illustrated below in conjunction with accompanying 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 base plate home position is provided with a circular blanking port
4。
Being provided with a fixing distributing device 2 in valve body 1, for vertex of a cone cone upward, inside is empty
Core structure, is the most only made up of the conical surface, and bottom surface is not closed.Distributing device 2 is coaxial with valve body 1.
The wide seam of annular that width is W is constituted between distributing device bottom surface and valve interior wall；Distributing device bottom surface with
The gap that a height is H is constituted between valve body base plate.
The distributing device bottom surface radius ratio big M of blanking port radius, namely the projection that distributing device is on valve body base plate
Distance between edge and blanking port edge is M.
Body wall bottom is provided with 6 conveying air ports 3 being parallel to valve body base plate, and be uniformly distributed with
On the circumference of body wall, being used for being passed through conveying wind, conveying wind flow direction is for be pointed to by body wall
Blanking port center, and just to the gap between distributing device and valve body base plate.Valve body-side is inserted in conveying air port
The degree of depth of wall is L.
This pneumatic solids discharge valve is designed for carrying angle of repose when being the bulk cargo of β: M ＞ H cot β.
When blow-off valve runs, whole 6 conveying air ports can be opened simultaneously, along with the increase of conveying air quantity,
Discharge rates increases；Also some groups can be divided into open in turn, by opening simultaneously in 6 conveying air ports
Group number regulate discharge rates.
Optionally, valve body base plate blanking port edge can be upwards the most protruding, as it is shown on figure 3, to carry
The self-locking property of high blow-off valve.
Optionally, distributing device is cone and cylindrical combination, and the two basal diameter is equal, cloth
Device bottom surface is closed, as shown in Figure 4, with the wide seam of annular after avoiding cone distributing device base angle to be worn
Width changes, and causes the operation characteristic of valve to produce deviation.
Optionally, distributing device can also be cylinder, as it is shown in figure 5, material can be at distributing device top
Natural packing coning, is used for being difficult at high temperature occur the material of coking, bonding etc..
Optionally, distributing device is cone, and valve body lower portion is tapered truncated cone-shaped, as shown in Figure 6,
To eliminate the dead band in valve body lower portion corner, it is adaptable to the material of coking, bonding etc. easily at high temperature occurs.
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 base plate centre bit installs
Have a rectangle blanking port 4, four limits of blanking port 4 and valve body 1 four wall the most parallel and with in valve body
The distance of wall is M+W.
Being provided with a fixing distributing device 2 in valve body 1, for vertex of a cone rectangular pyramid upward, the vertex of a cone is at valve
Projection on body base plate and base plate center superposition.
Limit, distributing device bottom surface four and valve interior wall constitute four width and are the wide seam of W；At the bottom of distributing device
The gap that a height is H is constituted between face and valve body base plate.
This pneumatic solids discharge valve is designed for carrying angle of repose when being the bulk cargo of β, meets: M ＞
H·cotβ。
Every limit, body wall bottom is equipped with 5 conveying air ports 3 being parallel to valve body base plate, is used for leading to
Entering and carry wind, conveying wind flow direction is to be pointed to blanking port center by body wall, and just to distributing device
And the gap between valve body base plate.It is L that the degree of depth of body wall is inserted in conveying air port.
When blow-off valve runs, can open simultaneously all carry air port, be regulated by regulation conveying air quantity
Discharge rates；Also some groups can be divided into open in turn, by the group number opened simultaneously in conveying air port
Regulation discharge rates.
Embodiment 3
Pneumatic solids discharge valve as shown in Figure 8 and Figure 9, structure is similar to Example 2, difference
Place is that valve body base plate is provided with two blanking ports, body wall bottom be provided with two groups, often group 5 defeated
Air outlet, distributing device is the triangular prism distributing device of bottom rectangle, and long limit is parallel with body wall, two ends
Face is combined as a whole with valve body.
When opening the conveying air port of difference group, material can be sent into different blanking ports, thus can be real
Existing material is to the pneumatic distribution of different downstream reservoir.
Distributing device is the triangular prism distributing device of bottom rectangle, eliminates pneumatic solids discharge valve without conveying air port
The dead band in region.
Embodiment 4
Pneumatic solids discharge valve as shown in figs, structure is similar to Example 2, different
Part is that body wall bottom is provided with two groups, often organizes 5 conveying air ports, and distributing device is bottom rectangle
Triangular prism distributing device, long limit is parallel with body wall, and both ends of the surface are combined as a whole with valve body both ends of the surface.
The pneumatic solids discharge valve of this kind of version, can realize pneumatic solid by modular splicing
Blow-off valve withdrawal rate popularization, it is simple to structure of modification.
Embodiment 5
Pneumatic solids discharge valve as shown in Figure 10, structure is similar to Example 3, and difference exists
It is respectively equipped with a distributing device above two blanking ports on valve body base plate, relevant to two distributing devices
The parameter such as W, H, L can separately design, thus can be more flexible to realize material bigger with difference
Discharge rates to the pneumatic distribution of different downstream reservoir.
Embodiment 6
Pneumatic solids discharge valve as is illustrated by figs. 11 and 12, structure is similar to Example 1, different
It is the arc coincideing with valve interior wall shape that part is that the part of valve body is goed deep in conveying air port, every section of arc
Shape is provided with multiple conveying wind snout, can spray multiple jets simultaneously, thus can avoid carrying air port control
Dead band between region processed, is particularly well-suited to the material of at high temperature easily coking.
Optionally, in order to reduce the impact between each conveying air port, between distributing device and valve body base plate
Gap in dividing plate 5 can be set, gap is separated into multiple sector region.
Embodiment 7
Pneumatic solids discharge valve as described in Figure 13, structure is similar to Example 1, and difference exists
In, body base is provided with loosening wind 6, for strengthening the particle flow of conveying air port, air port near zone,
It is particularly well-suited to the material of at high temperature easily coking.
So, the present invention proposes following scheme:
1, a kind of pneumatic solids discharge valve for bulk cargo, including:
Valve body, has sidewall and base plate, and the middle part of base plate is provided with blanking port；
Distributing device；
It is parallel at least one conveying air port of base plate,
Wherein:
Distributing device be arranged on the bottom surface of the distributing device directly over blanking port and directly over this blanking port with
Constituting height between the upper surface of base plate is the gap of H, distributing device projecting edge on base plate with fall
Minimum range between material mouth edge is M；
Minimum range between distributing device and sidewall is W；
Described conveying air port is used for carrying wind, and conveying tuyere structure becomes the flow direction of its conveying wind to be big
Cause flatly from sidewall via described gap towards blanking port；And
To specific bulk cargo, meeting M ＞ H cot β, wherein, β is the angle of repose of bulk cargo.
2, according to 1 pneumatic solids discharge valve, wherein:
The length L scope of conveying air port distance sidewall is 0～W.
3, according to 1 pneumatic solids discharge valve, wherein:
The edge of described blanking port is provided with in described gap prominent annular projection.
4, according to pneumatic solids discharge valve arbitrary in 1-3, wherein:
Described valve body is cylindric, and described pneumatic solids discharge valve includes a circular blanking port, described
Pneumatic solids discharge valve includes that a bottom surface is circular distributing device, and distributing device, blanking port are about valve body
Central axis in a rotationally symmetrical arrangement.
5, according to 4 pneumatic solids discharge valve, wherein:
Described distributing device is cone, and the bottom surface of cone is as the bottom surface of distributing device.
6, according to 4 pneumatic solids discharge valve, wherein:
Described distributing device is cylinder；Or the upper and lower of described distributing device is the circle adjoined one another
Cone and cylinder.
7, according to pneumatic solids discharge valve arbitrary in 4-6, wherein:
Pneumatic solids discharge valve includes multiple conveying air port, and the plurality of conveying air port is around described blanking port
The most equiangularly spaced layout.
8, according to pneumatic solids discharge valve arbitrary in 1-3, wherein:
Described valve body is rectangular drum like, and described pneumatic solids discharge valve includes a rectangle blanking port, institute
State pneumatic solids discharge valve and include that a bottom surface is the distributing device of rectangle, the centre of moment of described blanking port, institute
The centre of moment of the bottom surface stating distributing device is respectively positioned on the central axis of valve body, and four limits of blanking port, cloth
Four limits of the bottom surface of device are all the most parallel with the four of valve body sidewalls.
9, according to 8 pneumatic solids discharge valve, wherein:
Described 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:
Described distributing device includes quadrangular, and the bottom surface of quadrangular is the bottom surface of distributing device.
11, according to pneumatic solids discharge valve arbitrary in 8-10, wherein:
Pneumatic solids discharge valve includes that multiple conveying air port, the plurality of conveying air port are divided into and is respectively arranged
At four groups of four sidewalls of valve body, the conveying air port in each group is equidistantly spaced from along sidewall.
12, according to pneumatic solids discharge valve arbitrary in 8-10, wherein:
Pneumatic solids discharge valve includes that multiple conveying air port, the plurality of conveying air port are divided into and is respectively arranged
At two groups of two parallel sidewalls of valve body, the conveying air port in each group is equidistantly spaced from along sidewall.
13, according to pneumatic solids discharge valve arbitrary in 1-3, wherein:
Described valve body is rectangular drum like, and described pneumatic solids discharge valve includes that parallel interval opens the length of layout
Two rectangle blanking ports that limit is parallel to each other, and four sidewalls of four limits of each blanking port and valve body
The most parallel, described pneumatic solids discharge valve includes that a bottom surface is the distributing device of rectangle, distributing device
Two the long side walls in the long limit of bottom surface and valve body are parallel, and the both ends of the surface of distributing device integrally combine with valve body.
14, according to 13 pneumatic solids discharge valve, wherein:
Pneumatic solids discharge valve includes that multiple conveying air port, the plurality of conveying air port are divided into and is respectively arranged
At two groups of two parallel sidewalls of valve body, the conveying air port in each group is equidistantly spaced from along sidewall,
Two parallel sidewalls of described valve body are parallel to the long limit of rectangle blanking port.
15, according to 13 or 14 pneumatic solids discharge valve, wherein:
Described blanking port is two identical rectangle blanking ports that parallel interval opens layout, and two rectangles fall
The material mouth relative position on base plate is identical.
16, according to pneumatic solids discharge valve arbitrary in 1-3, wherein:
Described pneumatic solids discharge valve includes a rectangle blanking port, and the long limit of blanking port and valve body
Long side wall is parallel, and the minor face of blanking port is combined as a whole with valve body, described pneumatic solids discharge valve bag
Including a bottom surface is the distributing device of rectangle, and the long limit of the bottom surface of distributing device is put down with two long side walls of valve body
OK, the both ends of the surface of distributing device are combined as a whole with valve body both ends of the surface.
17, according to 16 pneumatic solids discharge valve, wherein:
Described blanking port is that long limit is parallel to valve body long side wall, the square that minor face and valve body are combined as a whole
Shape blanking port, rectangle blanking port center and valve body center superposition.
18, according to 13 and 16 pneumatic solids discharge valve, wherein:
Described distributing device is the triangular prism distributing device of bottom surface rectangle.
19, according to pneumatic solids discharge valve arbitrary in 1-3, wherein:
Described valve body is rectangular drum like, and described pneumatic solids discharge valve includes that parallel interval opens the length of layout
Two rectangle blanking ports that limit is parallel to each other, described pneumatic solids discharge valve includes that two bottom surfaces are rectangle
Distributing device, be separately positioned on the top of rectangle blanking port of correspondence, and four limits of each blanking port,
Four limits of the bottom surface of distributing device are all the most parallel with the four of valve body sidewalls.
20, according to 19 pneumatic solids discharge valve, wherein:
Pneumatic solids discharge valve includes that multiple conveying air port, the plurality of conveying air port are divided into and is respectively arranged
At two groups of two parallel sidewalls of valve body, the conveying air port in each group is equidistantly spaced from along sidewall,
Two parallel sidewalls of described valve body are parallel to the long limit 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 to its confession
At least one ajutage of wind, described air-supply header is annulus body concentric with valve.
22, according to 7 pneumatic solids discharge valve, wherein:
Each conveying air port is the spray-hole being arranged in air-supply header, and each air-supply header has
To at least one ajutage of its air feed, described air-supply header be the most spaced apart and
The body concentric multiple segmental arcs of valve.
23, according to 22 pneumatic solids discharge valve, wherein:
Multiple dividing plate, institute it is provided with in described gap between bottom surface and the upper surface of base plate of distributing device
State multiple dividing plate described gap to be divided into multiple identical sector region, tool in each sector region
There is one or more segmental arc.
24, according to pneumatic solids discharge valve arbitrary in 11,12,14,20, wherein:
Each conveying air port is the spray-hole being arranged in air-supply header, and each air-supply header has
To at least one ajutage of its air feed.
25, according to 1 pneumatic solids discharge valve, wherein:
Blown by a corresponding ajutage in each conveying air port.
26, according to pneumatic solids discharge valve arbitrary in 1-25, wherein:
Between described blanking port and described sidewall, at described base plate, be provided with loosening air port, for
On blow loosening wind.
27, a kind of method that utilization goes out bulk cargo according to pneumatic solids discharge valve flat raft arbitrary in 1-25,
Comprise the 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 to open pneumatic solids discharge valve.
28, according to 27 method, wherein:
Include that regulation enters conveying wind to conveying air port air feed with the step opening pneumatic solids discharge valve
The wind supply quantity of mouth.
29, according to 27 method, wherein:
To conveying air port, air feed includes controlling different conveyings with the step opening pneumatic solids discharge valve
Whether and/or air feed duration the air feed in air port.
30, according to 27 method, wherein:
Loosening air port it is provided with at described base plate between described blanking port and described sidewall；
To conveying air port, air feed includes from described loosening air port with the step opening pneumatic solids discharge valve
For being blown up loosening wind.
Although an embodiment of the present invention has been shown and described, for those of ordinary skill in the art
For, it is possible to understand that without departing from the principles and spirit of the present invention can be to these embodiments
Being changed, the scope of the present invention be defined by the appended.
Claims (30)
1. for a pneumatic solids discharge valve for bulk cargo, including:
Valve body, has sidewall and base plate, and the middle part of base plate is provided with blanking port；
Distributing device；
It is parallel at least one conveying air port of base plate,
Wherein:
Distributing device be arranged on the bottom surface of the distributing device directly over blanking port and directly over this blanking port with
Constituting height between the upper surface of base plate is the gap of H, distributing device projecting edge on base plate with fall
Minimum range between material mouth edge is M；
Minimum range between distributing device and sidewall is W；
Described conveying air port is used for carrying wind, and conveying tuyere structure becomes the flow direction of its conveying wind to be big
Cause flatly from sidewall via described gap towards blanking port；And to specific bulk cargo, meet M ＞
H cot β, wherein, β is the angle of repose of bulk cargo.
Pneumatic solids discharge valve the most according to claim 1, wherein:
The length L scope 0～W of conveying air port distance sidewall.
Pneumatic solids discharge valve the most according to claim 1, wherein:
The edge of described blanking port is provided with in described gap prominent annular projection.
4. according to the pneumatic solids discharge valve according to any one of claim 1-3, wherein:
Described valve body is cylindric, and described pneumatic solids discharge valve includes a circular blanking port, described
Pneumatic solids discharge valve includes that a bottom surface is circular distributing device, and distributing device, blanking port are about valve body
Central axis in a rotationally symmetrical arrangement.
Pneumatic solids discharge valve the most according to claim 4, wherein:
Described distributing device is cone, and the bottom surface of cone is as the bottom surface of distributing device.
Pneumatic solids discharge valve the most according to claim 4, wherein:
Described distributing device is cylinder；Or the upper and lower of described distributing device is the circle adjoined one another
Cone and cylinder.
7. according to the pneumatic solids discharge valve according to any one of claim 4-6, wherein:
Pneumatic solids discharge valve includes multiple conveying air port, and the plurality of conveying air port is around described blanking port
The most equiangularly spaced layout.
8. according to the pneumatic solids discharge valve according to any one of claim 1-3, wherein:
Described valve body is rectangular drum like, and described pneumatic solids discharge valve includes a rectangle blanking port, institute
State pneumatic solids discharge valve and include that a bottom surface is the distributing device of rectangle, the centre of moment of described blanking port, institute
The centre of moment of the bottom surface stating distributing device is respectively positioned on the central axis of valve body, and four limits of blanking port, cloth
Four limits of the bottom surface of device are all the most parallel with the four of valve body sidewalls.
Pneumatic solids discharge valve the most according to claim 8, wherein:
Described distributing device is rectangular pyramid, and the bottom surface of rectangular pyramid is the bottom surface of distributing device.
Pneumatic solids discharge valve the most according to claim 8, wherein:
Described distributing device includes quadrangular, and the bottom surface of quadrangular is the bottom surface of distributing device.
11. pneumatic solids discharge valves according to any one of-10 according to Claim 8, wherein:
Pneumatic solids discharge valve includes that multiple conveying air port, the plurality of conveying air port are divided into and is respectively arranged
At four groups of four sidewalls of valve body, the conveying air port in each group is equidistantly spaced from along sidewall.
12. pneumatic solids discharge valves according to any one of-10 according to Claim 8, wherein:
Pneumatic solids discharge valve includes that multiple conveying air port, the plurality of conveying air port are divided into and is respectively arranged
At two groups of two parallel sidewalls of valve body, the conveying air port in each group is equidistantly spaced from along sidewall.
13. according to the pneumatic solids discharge valve according to any one of claim 1-3, wherein:
Described valve body is rectangular drum like, and described pneumatic solids discharge valve includes that parallel interval opens the length of layout
Two rectangle blanking ports that limit is parallel to each other, and four sidewalls of four limits of each blanking port and valve body
The most parallel, described pneumatic solids discharge valve includes that a bottom surface is the distributing device of rectangle, distributing device
Two the long side walls in the long limit of bottom surface and valve body are parallel, and the both ends of the surface of distributing device integrally combine with valve body.
14. pneumatic solids discharge valves according to claim 13, wherein:
Pneumatic solids discharge valve includes that multiple conveying air port, the plurality of conveying air port are divided into and is respectively arranged
At two groups of two parallel sidewalls of valve body, the conveying air port in each group is equidistantly spaced from along sidewall,
Two parallel sidewalls of described valve body are parallel to the long limit of rectangle blanking port.
15. according to the pneumatic solids discharge valve described in claim 13 or 14, wherein:
Described blanking port is two identical rectangle blanking ports that parallel interval opens layout, and two rectangles fall
The material mouth relative position on base plate is identical.
16. according to the pneumatic solids discharge valve according to any one of claim 1-3, wherein:
Described pneumatic solids discharge valve includes a rectangle blanking port, and the long limit of blanking port and valve body
Long side wall is parallel, and the minor face of blanking port is combined as a whole with valve body, described pneumatic solids discharge valve bag
Including a bottom surface is the distributing device of rectangle, and the long limit of the bottom surface of distributing device is put down with two long side walls of valve body
OK, the both ends of the surface of distributing device are combined as a whole with valve body both ends of the surface.
17. pneumatic solids discharge valves according to claim 16, wherein:
Described blanking port is that long limit is parallel to valve body long side wall, the square that minor face and valve body are combined as a whole
Shape blanking port, rectangle blanking port center and valve body center superposition.
18. according to the pneumatic solids discharge valve described in claim 13 and 16, wherein:
Described distributing device is the triangular prism distributing device of bottom surface rectangle.
19. according to the pneumatic solids discharge valve according to any one of claim 1-3, wherein:
Described valve body is rectangular drum like, and described pneumatic solids discharge valve includes that parallel interval opens the length of layout
Two rectangle blanking ports that limit is parallel to each other, described pneumatic solids discharge valve includes that two bottom surfaces are rectangle
Distributing device, be separately positioned on the top of rectangle blanking port of correspondence, and four limits of each blanking port,
Four limits of the bottom surface of distributing device are all the most parallel with the four of valve body sidewalls.
20. pneumatic solids discharge valves according to claim 19, wherein:
Pneumatic solids discharge valve includes that multiple conveying air port, the plurality of conveying air port are divided into and is respectively arranged
At two groups of two parallel sidewalls of valve body, the conveying air port in each group is equidistantly spaced from along sidewall,
Two parallel sidewalls of described valve body are parallel to the long limit of rectangle blanking port.
21. pneumatic solids discharge valves according to claim 7, wherein:
Each conveying air port is the spray-hole being arranged in air-supply header, and air-supply header has to its confession
At least one ajutage of wind, described air-supply header is annulus body concentric with valve.
22. pneumatic solids discharge valves according to claim 7, wherein:
Each conveying air port is the spray-hole being arranged in air-supply header, and each air-supply header has
To at least one ajutage of its air feed, described air-supply header be the most spaced apart and
The body concentric multiple segmental arcs of valve.
23. pneumatic solids discharge valves according to claim 22, wherein:
Multiple dividing plate, institute it is provided with in described gap between bottom surface and the upper surface of base plate of distributing device
State multiple dividing plate described gap to be divided into multiple identical sector region, tool in each sector region
There is one or more segmental arc.
24. according to the pneumatic solids discharge valve according to any one of claim 11,12,14,20,
Wherein:
Each conveying air port is the spray-hole being arranged in air-supply header, and each air-supply header has
To at least one ajutage of its air feed.
25. pneumatic solids discharge valves according to claim 1, wherein:
Blown by a corresponding ajutage in each conveying air port.
26. according to the pneumatic solids discharge valve according to any one of claim 1-25, wherein:
Between described blanking port and described sidewall, at described base plate, be provided with loosening air port, for
On blow loosening wind.
27. 1 kinds utilize according to the pneumatic solids discharge valve row according to any one of claim 1-25
The method going out bulk cargo, comprises the 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 to open pneumatic solids discharge valve.
28. methods according to claim 27, wherein:
Include that regulation enters conveying wind to conveying air port air feed with the step opening pneumatic solids discharge valve
The wind supply quantity of mouth.
29. methods according to claim 27, wherein:
To conveying air port, air feed includes controlling different conveyings with the step opening pneumatic solids discharge valve
Whether and/or air feed duration the air feed in air port.
30. methods according to claim 27, wherein:
Loosening air port it is provided with at described base plate between described blanking port and described sidewall；
To conveying air port, air feed includes from described loosening air port with the step opening pneumatic solids discharge valve
For being blown up loosening 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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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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 CN106275933B (en) | 2018-09-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| GB2101980A (en) * | 1981-06-12 | 1983-01-26 | Moeller Hamburg Gmbh Co Kg | Metered discharge of material from fluidized bed |
| JPH08230981A (en) * | 1995-02-24 | 1996-09-10 | Nkk Corp | Powder discharging apparatus |
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| CN106275933B (en) | 2018-09-04 |
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