CN116498764A - Material control valve and shaft furnace discharging system - Google Patents
Material control valve and shaft furnace discharging system Download PDFInfo
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- CN116498764A CN116498764A CN202310580634.8A CN202310580634A CN116498764A CN 116498764 A CN116498764 A CN 116498764A CN 202310580634 A CN202310580634 A CN 202310580634A CN 116498764 A CN116498764 A CN 116498764A
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- valve body
- valve
- cooling
- rotating shaft
- material control
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- 239000000463 material Substances 0.000 title claims abstract description 103
- 238000007599 discharging Methods 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 128
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000007789 sealing Methods 0.000 claims description 11
- 238000010926 purge Methods 0.000 claims description 3
- 238000010408 sweeping Methods 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims description 2
- 238000000429 assembly Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 239000013590 bulk material Substances 0.000 abstract 1
- 239000002826 coolant Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003779 heat-resistant material Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/04—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
- F16K3/06—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
- F16K3/08—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
- F16K3/085—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/044—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members
- F16K27/045—Construction of housing; Use of materials therefor of sliding valves slide valves with flat obturating members with pivotal obturating members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
- F16K3/029—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with two or more gates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K49/00—Means in or on valves for heating or cooling
- F16K49/005—Circulation means for a separate heat transfer fluid
- F16K49/007—Circulation means for a separate heat transfer fluid located within the obturating element
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Sliding Valves (AREA)
Abstract
The invention relates to a material control valve and a shaft furnace discharging system in the technical field of bulk material conveying control valves. The material control valve comprises a valve body, at least two valve plates, a driving mechanism and at least two rotating shafts; a discharging opening is arranged on the valve body; the valve plate is arranged in the valve body; the driving mechanism is arranged outside the valve body; the rotating shaft is rotatably arranged on the valve body, is connected with the driving mechanism and the corresponding valve plate and can drive the valve plate to rotate; when the driving mechanism drives each rotating shaft to rotate, each valve plate can be driven to synchronously move relative to the center of the feed opening; the rotating shaft is provided with a first cooling structure for cooling the rotating shaft. The beneficial effects include: the driving mechanism drives the rotating shaft to rotate so that each valve plate synchronously moves to adjust the opening size of the material channel at the discharging opening, so that the central discharging is realized, the structure is simple, and the occupied space is small; the driving mechanism is arranged outside the valve body and directly drives the valve plate through the rotating shaft provided with the first cooling structure, and no redundant transmission mechanism exists in the valve body, so that the valve is favorable for adapting to high-temperature working conditions.
Description
Technical Field
The invention relates to the technical field of bulk cargo conveying control valves, in particular to a material control valve and a shaft furnace discharging system.
Background
In the material conveying links of various industries such as metallurgy, cement, mines and the like, valves are often required to control the material flow so as to meet the production process requirements. Many control valves are currently in use in the marketplace, including gate valve, flap valve and jaw valve configurations. The gate valve is low in height, but is oversized in length direction, and is not suitable for controlling quantitative flow and not capable of realizing central blanking; the flap valve is high and cannot quantitatively control the flow; while the jaw valve is high. The three valves can not realize central blanking or have larger requirements on height and occupied space, and are difficult to meet the current production requirements.
And along with the updating of the production process, part of production lines not only require the material control valve to be capable of adjusting and quantitatively controlling the material flow on line, but also need to adapt to the high-temperature working condition due to the higher temperature of the material flowing through the control valve. Such as a direct reduction shaft furnace hot discharge system in the metallurgical industry, there is an urgent need for a valve that meets the above-described needs.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a material control valve and a shaft furnace discharging system, which are used for solving the problems that the material control valve in the prior art is difficult to adapt to a high temperature working condition and occupies a large space.
To achieve the above and other related objects, the present invention provides a material control valve comprising:
the valve body is provided with a feed opening for passing materials;
the valve plates are arranged in the cavity of the valve body and are symmetrically distributed in the center of the feed opening;
the driving mechanism is arranged outside the valve body; and
at least two rotating shafts which can be rotatably arranged on the valve body along the axis of the rotating shafts, wherein each rotating shaft is correspondingly connected with one valve plate and can drive the valve plate to rotate; each rotating shaft is provided with a first connecting part which is positioned in the valve body and connected with the corresponding valve plate, and a second connecting part which is positioned outside the valve body and connected with the driving mechanism;
when the driving mechanism drives each rotating shaft to rotate, each valve plate can be driven to synchronously move relative to the center of the blanking opening so as to adjust the opening size of a material channel at the blanking opening;
the rotating shaft is provided with a first cooling structure for cooling the rotating shaft.
Optionally, the valve plate is connected with the first connecting part through a supporting arm, and rotates synchronously with the supporting arm and the rotating shaft.
Optionally, the pivot includes inner tube and outer tube, be equipped with first runner and with the first cooling export of first runner intercommunication on the inner tube, the one end of inner tube stretches into in the outer tube, just the outer wall of inner tube with clearance between the inner wall of outer tube forms first cooling chamber, be equipped with on the outer tube with the first cooling import of first cooling chamber intercommunication, first cooling chamber with first runner intercommunication forms first cooling structure.
Optionally, the two ends of the outer tube are closed, and an opening for communicating the first flow channel with the first cooling cavity is formed in the end part of one end of the inner tube extending into the outer tube.
Optionally, a bearing seat is installed on the valve body, a part of the bearing seat stretches into the valve body, the rotating shaft is installed on the bearing seat through a bearing, and a second cooling structure and/or a purging air path are arranged on the bearing seat.
Optionally, the bearing seat is provided with a second cooling cavity forming the second cooling structure along the circumferential direction of the bearing seat, and the bearing seat is also provided with a second cooling inlet and a second cooling outlet which are communicated with the second cooling cavity.
Optionally, the bearing frame stretches into the valve body one end installs the end cover, the pivot be located the bearing with the position between the end cover with be equipped with the sealing member between the bearing frame, the sealing member compresses tightly through the end cover, the end cover is equipped with annular air groove along its circumference, be equipped with on the bearing frame with annular air groove intercommunication and form the air flue of sweeping the gas circuit, when through the air flue to the annular air groove sweeps gas, can seal the pivot with clearance between the end cover.
Optionally, the driving mechanism corresponds to the rotating shafts one by one, the driving mechanism comprises driving pieces, and the driving pieces are connected with the corresponding rotating shafts through driving arms or gear assemblies.
Optionally, the gear assembly includes a first gear and a second gear that are meshed, an output end of the driving member is connected to the first gear, and the second gear is mounted on the rotating shaft.
Optionally, the same driving mechanism is connected with the two rotating shafts through a connecting rod assembly, and can drive the two rotating shafts to synchronously rotate so as to drive the two valve plates to synchronously move.
Optionally, a heat-resistant lining is paved on the inner wall surface of the valve body.
Optionally, a third cooling structure is arranged inside the valve wall of the valve body.
Optionally, the valve body includes valve body and lower valve body, go up the valve body with lower valve body detachably connects and forms when connecting the lid the cavity, upward be equipped with the unloading choke on the valve body, the feed opening sets up on the unloading choke, be equipped with on the lower valve body with the discharge gate that the feed opening corresponds.
Optionally, the quantity of valve plate is two, including first valve plate and second valve plate, two the center line of pivot passes through the center of feed opening, the blanking border of first valve plate with the contained angle that the center line formed is alpha, the blanking border of second valve plate with the contained angle that the center line formed is beta, alpha with beta equals.
To achieve the above and other related objects, the present application also provides a shaft furnace discharge system comprising a material control valve as described above.
As described above, the material control valve and the shaft furnace discharging system of the present invention have at least the following advantageous effects: the driving mechanism drives the rotating shaft to rotate so as to realize synchronous movement of each valve plate to adjust the opening size of the material channel at the feed opening, so that not only can central feeding be realized and the material flow be adjusted, but also the structure is simple and the occupied space is small; in addition, the driving mechanism is arranged outside the valve body, the valve plate in the valve body is directly driven through the rotating shaft, no redundant transmission mechanism is arranged in the cavity of the valve body, and the rotating shaft is provided with a first cooling structure, so that the damage of high-temperature materials to the material control valve is reduced, and the valve is favorable for adapting to high-temperature working conditions.
Drawings
FIG. 1 shows a cross-sectional view of a first embodiment of a material control valve of the present invention;
FIG. 2 is a schematic view of the structure of the shaft and the bearing housing in FIG. 1;
FIG. 3 is a top view of the material control valve of FIG. 1;
FIG. 4 is a schematic view of the structure of the feed opening in FIG. 1 in a closed state;
fig. 5 is a schematic structural view of the feed opening in fig. 1 during the opening and closing process;
FIG. 6 is a schematic view showing the structure of the feed opening in FIG. 1 in a fully opened state;
FIG. 7 is a top view of a second embodiment of a material control valve according to the present invention;
fig. 8 shows a cross-sectional view of a third embodiment of the material control valve of the present invention.
Description of the part reference numerals
The upper valve body 101, the first inner liner 1011, the third cooling chamber 1012, the fourth cooling chamber 1013, the fifth cooling chamber 1015, the third cooling inlet 1016, the third cooling outlet 1017, the fourth cooling inlet 1018, the fourth cooling outlet 1019, the lower valve body 102, the second inner liner 1021, the sixth cooling chamber 1022, the seventh cooling chamber 1023, the fifth cooling inlet 1024, the fifth cooling outlet 1025, the discharge port 1026, the first through hole 103, the second through hole 104, the chamber 105, the blanking throat 200, the blanking port 201, the valve plate 300, the through cover 401, the bearing housing 402, the second cooling chamber 4021, a second cooling inlet 4022, a second cooling outlet 4023, an air passage 4024, an air inlet 4025, a first bearing 403, a spacer 404, a second bearing 405, a seal 406, an end cap 407, an annular air groove 4071, a rotating shaft 501, an outer tube 5011, an inner tube 5012, a first cooling inlet 5013, a first cooling outlet 5014, a first cooling chamber 5015, a first flow passage 5016, a support arm 502, a driver 601, a drive arm 602, a first gear 603, a second gear 604, a first link 605, a second link 606, a third link 607, a pin 608, a mount 609, a bracket 6010, a first bolt pair 701, and a second bolt pair 702.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention.
It should be noted that, the illustrations provided in the present embodiment merely illustrate the basic concept of the present invention by way of illustration, and only the components related to the present invention are shown in the drawings and are not drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of the components in actual implementation may be arbitrarily changed, and the layout of the components may be more complex. The structures, proportions, sizes, etc. shown in the drawings attached hereto are for illustration purposes only and are not intended to limit the scope of the invention, which is defined by the claims, but rather by the claims. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the invention, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the invention may be practiced.
Before describing embodiments of the present invention in detail, an application environment of the present invention will be described. The technology of the invention is mainly applied to the transportation of high-temperature materials, is used for controlling the material flow of the materials, and is especially applied to the discharge of high-temperature sponge iron after reduction by a direct reduction shaft furnace, the temperature of the materials is generally above 200 ℃, the temperature is higher, the conventional material control valve is difficult to continuously and normally operate under the high-temperature working condition, and the invention is used for solving the problems that the conventional material control valve occupies large space and is difficult to adapt to the high-temperature working condition.
The present invention will be described in detail with reference to the drawings and the embodiments, but it should be understood that the present application is not limited to the following embodiments.
Embodiment one:
referring to fig. 1 to 6, the material control valve provided in the present application includes a valve body, a driving mechanism, at least two rotating shafts 501, and at least two valve plates 300. The valve body is provided with a feed opening 201 for passing materials; each valve plate 300 is arranged in the chamber 105 of the valve body and is distributed in a central symmetry manner by the center of the feed opening 201; the driving mechanism is arranged outside the valve body; each rotating shaft 501 can be rotatably arranged on the valve body along the axis of the rotating shaft 501, each rotating shaft 501 is correspondingly connected with one valve plate 300 and can drive the valve plates 300 to rotate, that is to say, the rotating shafts 501 are equal in number to the valve plates 300 and are correspondingly arranged one by one; each rotary shaft 501 has a first connection portion located in the valve body and a second connection portion located outside the valve body, the first connection portion being connected with the corresponding valve plate 300, and the second connection portion being connected with the driving mechanism. When the driving mechanism drives each rotating shaft 501 to rotate, each valve plate 300 can be driven to synchronously move relative to the center of the feed opening 201, so as to adjust the opening size of the material channel at the feed opening 201, and thus adjust the flow of the material. Be equipped with the first cooling structure that is used for carrying out the cooling to pivot 501 on the pivot 501, actuating mechanism sets up outside the valve body, through the valve plate 300 in the pivot direct drive valve body, does not have unnecessary drive mechanism in the cavity 105 of valve body, is favorable to adapting to the high temperature operating mode.
Optionally, the valve body includes an upper valve body 101 and a lower valve body 102, where the upper valve body 101 and the lower valve body 102 are detachably connected and form a chamber 105 when being covered, and the detachable connection of the upper valve body 101 and the lower valve body 102 is beneficial to connecting the upper valve body 101 and the lower valve body 102 together after the valve plate 300 and the rotating shaft 501 are installed, so as to reduce the installation difficulty of the valve plate 300 and the rotating shaft 501; wherein, the upper valve body 101 and the lower valve body 102 can be connected through the second bolt pair 702, the disassembly and assembly are convenient, the upper valve body 101 and the lower valve body 102 are connected with the cover to form a cavity 105, and the cavity 105 can provide a movable space for the valve plate 300, the rotating shaft 501 and other parts. The upper valve body 101 is provided with a blanking throat pipe 200, and the blanking throat pipe 200 and the upper valve body 101 can be of an integrated structure; alternatively, the blanking throat 200 and the upper valve body 101 are of a split type structure and are fixedly mounted on the upper valve body 101. The part of the blanking throat 200 stretches into the cavity 105, the blanking opening 201 is arranged at the part of the blanking throat 200 stretching into the cavity 105, the discharging opening 1026 corresponding to the blanking opening 201 is arranged on the lower valve body 102, when the driving mechanism drives the valve plate 300 to move to open the blanking opening 201, materials enter from the blanking opening 201 and pass through the cavity 105 and are discharged from the discharging opening 1026, and when the driving mechanism drives the valve plate 300 to move to close the blanking opening 201, the valve plate 300 shields the blanking opening 201 and prevents the materials from falling. Through setting up the valve plate 300 that corresponds with feed opening 201 in the below of feed opening 201 to valve plate 300 can rotate around pivot 501 in the horizontal direction and realize opening and closing of feed opening 201, and the high space occupies fewly reduces the whole height of material control valve, and the reduction of the whole height of material control valve can make the steel construction of the platform of installation material control valve also wholly reduce, has reduced investment cost.
Alternatively, the rotating shafts 501 are disposed corresponding to the valve plates 300, that is, one rotating shaft 501 is disposed corresponding to each valve plate 300, and the number of the valve plates 300 and the rotating shafts 501 may be set according to the requirement. Further, the number of the rotating shafts 501 is two, the number of the valve plates 300 is two, the two rotating shafts 501 are arranged in a central symmetry manner with the feed opening 201, the two valve plates 300 comprise a first valve plate and a second valve plate, a central connecting line of the two rotating shafts 501 passes through the center of the feed opening 201, an included angle formed by the blanking edge of the first valve plate and the central connecting line is alpha, an included angle formed by the blanking edge of the second valve plate and the central connecting line is beta, and alpha is equal to beta, that is, the blanking edge of the first valve plate is always parallel to the blanking edge of the second valve plate, so that the first valve plate and the second valve plate are always symmetrically opened, the central feed of the feed opening 201 can be realized, and the flow control of the materials can be realized by controlling the opening angle. In this application, the line connecting the center of the feed opening 201 and the center of the valve body is parallel to the axis of the rotary shaft 501. Through setting up two valve plates 300 that symmetry and can synchronous motion, can make valve plate 300 symmetry open all the time on the one hand, the center unloading can be realized to the material, also can realize the quantitative control of flow through the aperture of control valve plate 300, on the other hand, two valve plates 300 open respectively for the valve body size can effectively diminish.
Alternatively, the rotating shaft 501 may be rotatably installed on the upper valve body 101 along its own axis, and the valve plate 300 is connected to the first connection portion through the supporting arm 502 and rotates synchronously with the supporting arm 502 and the rotating shaft 501, and during the rotation of the rotating shaft 501, the valve plate 300 and the supporting arm 502 may be driven to rotate synchronously around the axis of the rotating shaft 501. Specifically, one end of the supporting arm 502 is fixedly connected with the rotating shaft 501, and the other end of the supporting arm 502 is fixedly connected with the valve plate 300 through the first bolt pair 701, that is, the supporting arm 502 does not generate relative motion with the valve plate 300 and the rotating shaft 501, so that the rotating shaft 501 can drive the valve plate 300 and the supporting arm 502 to rotate together around the axis of the rotating shaft 501 when rotating.
Optionally, the driving mechanisms are in one-to-one correspondence with the rotating shafts 501, that is to say, each rotating shaft 501 is correspondingly provided with one driving mechanism; the driving mechanism includes a driving member 601, the driving member 601 and the corresponding rotating shaft 501 may be connected through a driving arm 602, and the driving arm 602 may be connected with an output end of the driving member 601 through a pin 608. When the driving piece 601 is connected with the corresponding rotating shaft 501 through the driving arm 602, one end of the driving piece 601 is hinged to the base 609 arranged on the valve body, the other end of the driving piece 601 is hinged to one end of the driving arm 602, and the other end of the driving arm 602 is fixedly connected with the rotating shaft 501, so that the driving piece 601 can drive the rotating shaft 501 to rotate through the driving arm 602, and the axis of the rotating shaft 501 is always used as a rotation center in the process of rotating the valve plate 300, the supporting arm 502 and the rotating shaft 501 together, and the driving piece 601 can be a hydraulic cylinder, an electric cylinder or an electric hydraulic cylinder. The driving structure is simple and reliable, and the maintenance is convenient.
Optionally, the rotating shaft 501 includes an inner pipe 5012 and an outer pipe 5011, a first flow channel 5016 and a first cooling outlet 5014 communicated with the first flow channel 5016 are disposed on the inner pipe 5012, one end of the inner pipe 5012 extends into the outer pipe 5011, a gap between an outer wall of the inner pipe 5012 and an inner wall of the outer pipe 5011 forms a first cooling cavity 5015, a first cooling inlet 5013 communicated with the first cooling cavity 5015 is disposed on the outer pipe 5011, and the first cooling cavity 5015 and the first flow channel 5016 are communicated to form a first cooling structure. Further, two ends of the outer tube 5011 are closed, and an opening for communicating the first flow channel 5016 with the first cooling cavity 5015 is formed in an end portion of one end of the inner tube 5012 extending into the outer tube 5011; wherein, inner tube 5012 and outer tube 5011 can coaxial setting, the upper end of inner tube 5012 is located outside outer tube 5011, first cooling outlet 5014 sets up on the position that inner tube 5012 is located outside outer tube 5011, the lower extreme of inner tube 5012 stretches into in outer tube 5011 from the top of outer tube 5011, and leave the clearance between the tip of the lower extreme of inner tube 5012 and the bottom of outer tube 5011, so that the coolant in the first cooling chamber 5015 gets into in the first flow path 5016 through the opening from this clearance, first cooling inlet 5013 sets up on the lateral wall of the position that outer tube 5011 is located outside the valve body, first cooling inlet 5013 and first cooling outlet 5014 all are located the valve body outside, be convenient for coolant's input and output, can also avoid the high temperature operating mode to cause the influence to coolant supply equipment's operation simultaneously. The part of pivot 501 is located the valve body inside so that can be connected with valve plate 300 direct or indirect in order to drive valve plate 300 translation, sets up first cooling structure on the pivot 501 and can effectively reduce the temperature of pivot 501, avoids the material temperature that passes through the valve body inside to be too high and makes pivot 501 impaired, prolongs the life of material control valve.
Optionally, the valve body is provided with the bearing seat 402, a part of the bearing seat 402 extends into the valve body, the rotating shaft 501 is installed on the bearing seat 402 through a bearing, and the bearing seat 402 is provided with a second cooling structure and/or a purging gas circuit, so that the valve body is compact in structural layout and can adapt to high-temperature working conditions. Specifically, the bearing housing 402 may be mounted on the upper valve body 101, with the upper end of the bearing housing 402 located outside the valve body and the lower end of the bearing housing 402 located within the chamber 105. Further, the number of bearings may be two, including a first bearing 403 and a second bearing 405, and the first bearing 403 and the second bearing 405 are separated by a spacer 404.
Optionally, the bearing seat 402 is provided with a second cooling cavity 4021 forming a second cooling structure along the circumferential direction of the bearing seat 402, the bearing seat 402 is further provided with a second cooling inlet 4022 and a second cooling outlet 4023 which are communicated with the second cooling cavity 4021, the second cooling inlet 4022 and the second cooling outlet 4023 are both arranged at a position of the bearing seat 402 outside the valve body, and a cooling medium enters the second cooling cavity 4021 from the second cooling inlet 4022 to cool the bearing seat 402 and flows out from the second cooling outlet 4023. Further, the second cooling cavity 4021 includes a cavity portion near the upper end of the bearing housing 402 and a cavity portion near the lower end of the bearing housing 402; specifically, the portion of the cavity portion may be provided with the bearing seat 402 at a position outside the valve body, the portion of the cavity portion may be provided at a position of the bearing seat 402 located in the cavity 105, and a radial width of the cavity portion along the bearing seat 402 is greater than a radial width of the cavity portion along the bearing seat 402.
Optionally, an end cover 407 is installed at one end of the bearing seat 402 extending into the valve body, and a sealing element 406 is arranged between the bearing seat 402 and the part of the rotating shaft 501 between the bearing and the end cover 407, that is, the sealing element 406 is positioned between the bearing and the end cover 407, so that the stability of the structure can be improved, and impurities such as materials, dust and the like can be prevented from entering a gap between the bearing seat 402 and the rotating shaft 501 to affect the bearing. The sealing element 406 may be a sealing ring or a sealing gasket, etc., the sealing element 406 is pressed by the end cover 407, the end cover 407 is mounted at the lower end of the bearing seat 402, the upper end of the bearing seat 402 is provided with the transparent cover 401, and the upper end of the rotating shaft 501 extends out of the bearing seat 402 through the transparent cover 401. The end cover 407 is circumferentially provided with an annular air groove 4071, the bearing seat 402 is provided with an air passage 4024 which is in sweeping air passage with the annular air groove 4071, when the air passage 4024 sweeps air to the annular air groove 4071, a gap between the rotating shaft 501 and the end cover 407 can be sealed, so that air tightness is formed, impurities such as materials and dust in the cavity 105 are prevented from entering the bearing seat 402 from the gap between the rotating shaft 501 and the end cover 407, an air inlet 4025 communicated with the air passage 4024 is arranged at a position of the bearing seat 402 outside the valve body, external cooling air enters the cavity 105 of the valve body through the air passage 4024 from the air inlet 4025 and is discharged to the cavity 402 of the valve body through the annular air groove 4071, and therefore, the materials in the cavity 105 can be prevented from entering the bearing seat 402 to influence the operation and service life of parts arranged in the bearing seat 402, and the bearing seat 402 can be further cooled. Further, the annular groove comprises a large-diameter section arranged on the outer side wall and the inner side wall of the end cover 407, the two large-diameter sections are communicated through a small-diameter section, and the structural design is adopted to be beneficial to changing the flow rate of cooling gas so as to form air flow with more impact force, thereby effectively preventing materials or dust from entering from a gap between the end cover 407 and the rotating shaft 501 and improving the reliability of air sealing.
Optionally, a heat-resistant lining is paved on the inner wall surface of the valve body, and the heat-resistant lining can be made of a heat-resistant material so as to improve the heat resistance of the valve body and reduce the damage of high-temperature materials to the valve body. Further, the heat-resistant liner includes a first liner layer 1011 covering the inner wall surface of the upper valve body 101 and a second liner layer 1021 covering the inner wall surface of the lower valve body 102.
Optionally, a third cooling structure is arranged inside the valve wall of the valve body. Further, the third cooling structure includes a third cooling chamber 1012, a fourth cooling chamber 1013, a fifth cooling chamber 1015, a sixth cooling chamber 1022, and a seventh cooling chamber 1023; the third cooling cavity 1012 and the fourth cooling cavity 1013 are arranged at the upper part of the upper valve body 101, the third cooling cavity 1012 is arranged along the circumferential direction of the upper valve body 101 and is vertically arranged, the fourth cooling cavity 1013 is arranged along the circumferential direction of the upper valve body 101 and is horizontally arranged, the third cooling cavity 1012 and the fourth cooling cavity 1013 are communicated through a plurality of first through holes 103 arranged along the circumferential direction of the upper valve body 101, a third cooling inlet 1016 communicated with the third cooling cavity 1012 and a third cooling outlet 1017 communicated with the fourth cooling cavity 1013 are arranged on the upper valve body 101, and a cooling medium enters from the third cooling inlet 1016 and sequentially passes through the third cooling cavity 1012, the first through holes 103 and the fourth cooling cavity 1013 and is discharged from the third cooling outlet 1017. The fifth cooling cavity 1015 is disposed at a lower portion of the upper valve body 101, the fifth cooling cavity 1015 is disposed along a circumferential direction of the upper valve body 101 and is disposed vertically, a fourth cooling inlet 1018 and a fourth cooling outlet 1019 which are communicated with the fifth cooling cavity 1015 are disposed on the upper valve body 101, and a cooling medium is discharged from the fourth cooling outlet 1019 after entering through the fifth cooling cavity 1015 from the fourth cooling inlet 1018. The sixth cooling chamber 1022 and the seventh cooling chamber 1023 are disposed on the lower valve body 102, the sixth cooling chamber 1022 is disposed along the circumferential direction of the lower valve body 102 and is disposed vertically, the seventh cooling chamber 1023 is disposed along the circumferential direction of the lower valve body 102 and is disposed horizontally, the sixth cooling chamber 1022 and the seventh cooling chamber 1023 are communicated through a plurality of second through holes 104 disposed along the circumferential direction of the lower valve body 102, a fifth cooling inlet 1024 communicated with the sixth cooling chamber 1022 and a fifth cooling outlet 1025 communicated with the seventh cooling chamber 1023 are disposed on the lower valve body 102, and a cooling medium enters from the fifth cooling inlet 1024 and is discharged from the fifth cooling outlet 1025 after passing through the sixth cooling chamber 1022, the second through holes 104 and the seventh cooling chamber 1023 in sequence. The third cooling structure is arranged on the valve body, so that the cooling performance of the valve body is further improved, the valve body is prevented from being too high in temperature, and the valve body can adapt to a high-temperature operation environment.
In the above-mentioned material control valve, a part of the rotating shaft 501 and a part of the bearing seat 402 are located in the valve body, the rotating shaft 501 is connected with the valve plate 300 through the supporting arm 502 and can rotate to drive the valve plate 300 to translate, so that the installation occupation space in the height direction and the horizontal direction is reduced, and the movement occupation space of the valve plate 300 in the height direction and the horizontal direction is reduced; in addition, there is no movable part needing lubrication in the chamber 105 of the valve body, the support arm 502 positioned in the valve body has low requirement on position accuracy, high temperature resistant materials can be selected, normal operation is not easy to be influenced due to high temperature deformation, the high temperature working condition can be adapted, and the rotating shaft 501 and the bearing seat 402 with high requirement on position accuracy are cooled by arranging a first cooling structure and a second cooling structure, so that the rotating shaft 501 and the bearing seat 402 can be ensured to be adapted to the high temperature working condition. In addition, the material control valve of the embodiment has simple and reliable structure and convenient maintenance, and effectively reduces investment cost and production cost.
Embodiment two:
referring to fig. 8, a difference from the first embodiment is that a driving member 601 is connected with a corresponding rotation shaft 501 through a gear assembly. When the driving piece 601 is connected with the corresponding rotating shaft 501 through the gear assembly, the gear assembly comprises a first gear 603 and a second gear 604 which are meshed, the driving piece 601 can be installed on the upper valve body 101 through a bracket 6010, the output end of the driving piece 601 is connected with the first gear 603, the first gear 603 is installed on the rotating shaft 501, the rotating shaft 501 can be driven to rotate when the first gear 603 and the second gear 604 are meshed for transmission, and the driving piece 601 can be a gear motor or a hydraulic motor.
The material control valve of the above embodiment has the advantages of the material control valve of the first embodiment, and the first gear 603 and the second gear 604 cooperatively drive, so that the movement is stable and reliable, and the reliability of the material control valve is further improved.
Embodiment III:
referring to fig. 1, 7 and 8, the difference from the first embodiment is that the same driving mechanism is connected to two rotating shafts 501 through a connecting rod assembly, and can drive the two rotating shafts 501 to synchronously rotate so as to drive the two valve plates 300 to synchronously move.
Alternatively, the number of driving mechanisms is one.
Alternatively, the link assembly includes a first link 605, a second link 606, and a third link 607, where the driving arm 602 is fixedly connected with one of the rotating shafts 501, a first end of the first link 605 is fixedly connected with the rotating shaft 501 fixedly connected with the driving arm 602, a first end of the third link 607 is fixedly connected with the other rotating shaft 501, two ends of the second link 606 are respectively hinged with a second end of the first link 605 and a second end of the third link 607, and the first link 605 and the third link 607 are parallel and have equal lengths. The rotation of the rotating shaft 501 connected with the driving arm 602 drives the first connecting rod 605 to rotate, the rotation of the first connecting rod 605 drives the third connecting rod 607 to rotate through the second connecting rod 606, and the rotation of the third connecting rod 607 drives the other rotating shaft 501 to rotate, so that the two valve plates 300 can synchronously move close or synchronously move far away, and the two valve plates 300 are always in central symmetry with the center of the feed opening 201.
It will be appreciated that the driving arm 602 may be replaced by a gear assembly in the second embodiment, and the gear assembly and the connecting rod assembly cooperate to realize that one driving member 601 drives two rotating shafts 501 simultaneously.
The material control valve of the above embodiment has the advantages of the first embodiment, and reduces the number of driving members 601, further simplifies the structure and reduces the cost.
In the above embodiment, the working principle of the first embodiment is the same as that of the second embodiment, specifically, when the material needs to be cut off, the two valve plates 300 are closed so that the material control valve is closed, and the material is cut off at the blanking throat 200; when the material is required to fall, the two driving mechanisms synchronously act, the two valve plates 300 synchronously move away from the material control valve to open, and in the opening process, the blanking edges of the two valve plates 300 are always parallel, so that the material is ensured to be blanked along the center, and the blanking flow of the material can be quantitatively regulated by controlling the angles alpha and beta; when the material discharging is completed, the material control valve is controlled to be in a fully opened state, so that the material remained on the valve plate 300 can be cleaned, and then the material control valve is fully closed to wait for the next working process. The working principle of the third embodiment is different from that of the first embodiment in that when the material is required to fall, the driving members 601 directly act according to the instructions, and the two valve plates 300 move synchronously under the action of the connecting rod assembly, and the two driving members 601 do not need to be controlled by electricity to act synchronously.
Referring to fig. 1-8, in some alternative embodiments, the present application also provides a shaft furnace discharge system including a material control valve as in any of the embodiments above.
Optionally, the material inlet of the shaft furnace discharging system corresponds to the material outlet of the shaft furnace, and receives the material discharged from the material outlet of the shaft furnace, and the material control valve may be installed at the material outlet of the shaft furnace discharging system, at the material inlet of the shaft furnace discharging system, or at a conveying channel between the material outlet of the shaft furnace discharging system and the material inlet of the shaft furnace discharging system, so as to realize the material flow control of the high-temperature material.
The material control valve and the shaft furnace discharging system have the advantages that through simple structural design, reliable structure and simple maintenance, the occupied space is reduced, the control of central discharging and material flow can be realized, and the cost is reduced; in addition, the device can also adapt to high-temperature working conditions, increases the application range, and can meet the production process requirements of high-temperature materials.
In the description of the present specification, the descriptions of the terms "present embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (15)
1. A material control valve, comprising:
the valve body is provided with a feed opening for passing materials;
the valve plates are arranged in the cavity of the valve body and are symmetrically distributed in the center of the feed opening;
the driving mechanism is arranged outside the valve body; and
at least two rotating shafts which can be rotatably arranged on the valve body along the axis of the rotating shafts, wherein each rotating shaft is correspondingly connected with one valve plate and can drive the valve plate to rotate; each rotating shaft is provided with a first connecting part which is positioned in the valve body and connected with the corresponding valve plate, and a second connecting part which is positioned outside the valve body and connected with the driving mechanism;
when the driving mechanism drives each rotating shaft to rotate, each valve plate can be driven to synchronously move relative to the center of the blanking opening so as to adjust the opening size of a material channel at the blanking opening;
the rotating shaft is provided with a first cooling structure for cooling the rotating shaft.
2. The material control valve according to claim 1, wherein: the valve plate is connected with the first connecting part through a supporting arm and synchronously rotates along with the supporting arm and the rotating shaft.
3. The material control valve according to claim 1, wherein: the rotating shaft comprises an inner pipe and an outer pipe, a first flow passage and a first cooling outlet communicated with the first flow passage are arranged on the inner pipe, one end of the inner pipe stretches into the outer pipe, a first cooling cavity is formed in a gap between the outer wall of the inner pipe and the inner wall of the outer pipe, a first cooling inlet communicated with the first cooling cavity is arranged on the outer pipe, and the first cooling cavity is communicated with the first flow passage to form a first cooling structure.
4. A material control valve according to claim 3, wherein: the two ends of the outer tube are closed, and an opening for communicating the first flow passage with the first cooling cavity is formed in the end part of one end of the inner tube extending into the outer tube.
5. The material control valve according to claim 1, wherein: the valve body is provided with a bearing seat, a part of the bearing seat stretches into the valve body, the rotating shaft is arranged on the bearing seat through a bearing, and the bearing seat is provided with a second cooling structure and/or a purging air passage.
6. The material control valve according to claim 5, wherein: the bearing seat is provided with a second cooling cavity forming the second cooling structure along the circumferential direction of the bearing seat, and the bearing seat is also provided with a second cooling inlet and a second cooling outlet which are communicated with the second cooling cavity.
7. The material control valve according to claim 5, wherein: the end cover is installed to the one end that the bearing frame stretched into in the valve body, the pivot be located the bearing with be equipped with the sealing member between the position between the end cover with the bearing frame, the sealing member compresses tightly through the end cover, the end cover is equipped with annular air groove along its circumference, be equipped with on the bearing frame with annular air groove intercommunication and form the air flue of sweeping the gas circuit, when through the air flue to annular air groove sweeps gas, can seal the pivot with clearance between the end cover.
8. The material control valve according to any one of claims 1 to 7, wherein: the driving mechanism is in one-to-one correspondence with the rotating shafts, the driving mechanism comprises driving pieces, and the driving pieces are connected with the corresponding rotating shafts through driving arms or gear assemblies.
9. The material control valve of claim 8, wherein: the gear assembly comprises a first gear and a second gear which are meshed, the output end of the driving piece is connected with the first gear, and the second gear is installed on the rotating shaft.
10. The material control valve according to any one of claims 1 to 7, wherein: the same driving mechanism is connected with the two rotating shafts through the connecting rod assembly and can drive the two rotating shafts to synchronously rotate so as to drive the two valve plates to synchronously move.
11. The material control valve according to claim 1, wherein: and a heat-resistant lining is paved on the inner wall surface of the valve body.
12. The material control valve according to claim 1, wherein: and a third cooling structure is arranged inside the valve wall of the valve body.
13. The material control valve according to any one of claims 1, 11 or 12, wherein: the valve body comprises an upper valve body and a lower valve body, the upper valve body is detachably connected with the lower valve body and forms the cavity when being connected with the cover, a discharging throat is arranged on the upper valve body, the discharging opening is arranged on the discharging throat, and a discharging opening corresponding to the discharging opening is arranged on the lower valve body.
14. The material control valve according to any one of claims 1 to 7, wherein: the valve plates are two in number and comprise a first valve plate and a second valve plate, the central connecting lines of the two rotating shafts pass through the center of the discharging opening, an included angle formed by the blanking edges of the first valve plates and the central connecting lines is alpha, an included angle formed by the blanking edges of the second valve plates and the central connecting lines is beta, and the alpha is equal to the beta.
15. A shaft furnace discharge system, characterized by: a material control valve comprising any one of claims 1 to 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310580634.8A CN116498764A (en) | 2023-05-22 | 2023-05-22 | Material control valve and shaft furnace discharging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310580634.8A CN116498764A (en) | 2023-05-22 | 2023-05-22 | Material control valve and shaft furnace discharging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116498764A true CN116498764A (en) | 2023-07-28 |
Family
ID=87318330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310580634.8A Pending CN116498764A (en) | 2023-05-22 | 2023-05-22 | Material control valve and shaft furnace discharging system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116498764A (en) |
-
2023
- 2023-05-22 CN CN202310580634.8A patent/CN116498764A/en active Pending
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Inventor after: Xiao Xuewen Inventor after: Dai Wenjun Inventor after: Zheng Jun Inventor after: Wang Shusheng Inventor after: Ma Yunfeng Inventor after: Zhang Tao Inventor after: Wu Kaiji Inventor after: Chen Jihui Inventor before: Dai Wenjun Inventor before: Zheng Jun Inventor before: Wang Shusheng Inventor before: Ma Yunfeng Inventor before: Zhang Tao Inventor before: Wu Kaiji Inventor before: Chen Jihui |