CN217108237U - Double-channel flap valve - Google Patents
Double-channel flap valve Download PDFInfo
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- CN217108237U CN217108237U CN202220472767.4U CN202220472767U CN217108237U CN 217108237 U CN217108237 U CN 217108237U CN 202220472767 U CN202220472767 U CN 202220472767U CN 217108237 U CN217108237 U CN 217108237U
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Abstract
The utility model relates to a double-channel flap valve, which comprises a valve body, a partition plate, a first valve plate, a second valve plate, a first valve plate driving device and a second valve plate driving device; the middle part of the valve body is provided with a clapboard along the axial direction to divide the internal space of the valve body into 2 independent channels; a valve plate, namely a valve plate I and a valve plate II, is arranged in each channel respectively; the valve body is externally provided with a first valve plate driving device and a second valve plate driving device, wherein the first valve plate driving device is connected with the first valve plate and drives the first valve plate to rotate, and the second valve plate driving device is connected with the second valve plate and drives the second valve plate to rotate. Binary channels flap valve is applicable to the sintering system that is equipped with heated air circulation, is equipped with 2 independent passageways in the valve body to establish independent control's valve plate respectively, can conveniently arrange system and the hot air circulation system is nimble to be switched in the sintering flue gas between outward, and the valve plate is sealed effectual, can play good fender material effect of keeping out the wind.
Description
Technical Field
The utility model relates to the technical field of valves, especially, relate to a binary channels flap valve.
Background
The modern sintering process is that iron ore powder, flux, fuel, substitute and return ore are mixed according to a certain proportion, and then mixed with proper amount of water, and after pelletizing, the mixture is sintered from top to bottom on a pallet of an air draft sintering machine. The flue gas of the sintering machine is dedusted in a large sintering flue, then enters a centralized dedusting device, is discharged to the atmosphere through a high chimney by an exhaust fan, and the dust collected by the large sintering flue and a deduster enters a return mine system through an ash conveying device. In order to fully utilize the waste heat in the sintering flue gas, reduce heat loss, improve energy utilization rate and reduce pollutant discharge, a flue gas circulation (also called hot air circulation) technology is generally adopted in the sintering system at the present stage. The sintering hot air circulation is a method for selecting the flue gas of a specific air box section to circulate back to the surface of a sintering machine bench for hot air sintering on the premise of not influencing the quality of a sintering ore according to the flue gas emission characteristics (including temperature, oxygen content, flue gas quantity, pollutant concentration and the like) of a sintering air box.
A valve (usually a flap valve) for ventilation and ash discharge is required to be arranged at the joint of the air suction pipeline at the lower part of the sintering machine air box and the large sintering flue or the hot air circulation pipeline, and the flap valve applied to the high-temperature flue gas pipeline at present generally has the problems of small driving force and leakage caused by untight sealing.
Disclosure of Invention
The utility model provides a binary channels flap valve is applicable to the sintering system that is equipped with heated air circulation, is equipped with 2 independent passageways in the valve body to establish independent control's valve plate respectively, can conveniently arrange system and heated air circulation system in the sintering flue gas between nimble the switching, and the valve plate is sealed effectual, can play good fender material effect of keeping out the wind.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a double-channel flap valve comprises a valve body, a partition plate, a first valve plate, a second valve plate, a first valve plate driving device and a second valve plate driving device; the middle part of the valve body is provided with a clapboard along the axial direction to divide the internal space of the valve body into 2 independent channels; a valve plate, namely a valve plate I and a valve plate II, is arranged in each channel respectively; the valve body is externally provided with a first valve plate driving device and a second valve plate driving device, wherein the first valve plate driving device is connected with the first valve plate and drives the first valve plate to rotate, and the second valve plate driving device is connected with the second valve plate and drives the second valve plate to rotate.
The inlet end of the valve body is connected with an air suction pipeline at the lower part of an air box of the sintering machine, namely 2 channels are communicated with the air suction pipeline; 2 channels at the outlet end of the valve body are respectively communicated with the large sintering flue and the sintering hot air circulation pipeline; the first valve plate and the second valve plate are both arranged close to the inlet end of the valve body.
The cross section of the inlet end of the valve body is circular and is provided with a connecting flange, the cross sections of the channels at the positions of the first valve plate and the second valve plate are both semicircular, and the first valve plate and the second valve plate are both semicircular valve plates; the outlet end of the valve body is provided with a reducing section, and the cross sections of the joints of the 2 channels, the sintering large flue and the sintering hot air circulation pipeline are all rectangular.
The first valve plate and the second valve plate are arranged in a staggered mode along the axial direction of the valve body; the first valve plate and the second valve plate are rotatably connected with the valve body through corresponding valve plate shafts, and one ends of the valve plate shafts extend out of the valve body and are connected with corresponding valve plate driving devices.
The first valve plate driving device and the second valve plate driving device are both intelligent electric actuators or electro-hydraulic cylinders and have local and remote operation functions.
A double-channel flap valve also comprises a valve plate sealing structure; the valve plate sealing structure consists of 2 semicircular sealing frameworks and a graphite disc plate; and sealing frameworks are respectively arranged in the 2 channels corresponding to the closing positions of the first valve plate and the second valve plate, semicircular framework grooves are formed in the sealing frameworks at one sides facing the first valve plate and the second valve plate, graphite packing is embedded in the framework grooves, and semicircular bosses matched with the framework grooves are respectively arranged at the corresponding sides of the first valve plate and the second valve plate.
A double-channel flap valve further comprises a valve neck I, a valve neck II, a spacer bush and a connecting disc; the two sides of the valve body are respectively provided with a first valve neck and a second valve neck, one end of the valve plate shaft penetrates out of the valve body and then extends into the first valve neck, and the outer end of the first valve neck is sealed by an end cover; the other end of the valve plate shaft penetrates through the valve body and the second valve neck and then is connected with a corresponding valve plate driving device through a connecting disc, and a spacer bush is arranged between the second valve neck and the connecting disc; sliding bearings are respectively arranged between the first valve neck and the valve plate shaft and between the second valve neck and the valve plate shaft.
Compared with the prior art, the beneficial effects of the utility model are that:
the valve body is internally provided with 2 independent channels, and the valve plates are respectively provided with independent control, so that the sintering flue gas discharge system and the hot air circulation system can be flexibly switched, the valve plate is good in sealing effect, and a good wind shielding and material blocking effect can be achieved.
Drawings
Fig. 1 is a front sectional view of the dual-channel flap valve of the present invention.
Fig. 2 is a side sectional view of fig. 1.
Fig. 3 is a top view of fig. 2.
Fig. 4 is an enlarged view of a portion i in fig. 2.
Fig. 5 is an enlarged view of a portion ii in fig. 2.
In the figure: 1. valve body 2, partition 3, valve plate I4, valve plate II 5, sealing framework 6, valve plate shaft 7, valve plate driving device I8, valve plate driving device II 9, valve neck I10, end cover 11, sliding bearing 12, valve neck II 13, spacer sleeve 14 and connecting disc
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1 to 3, the dual-channel flap valve of the present invention comprises a valve body 1, a partition plate 2, a first valve plate 3, a second valve plate 4, a first valve plate driving device 7, and a second valve plate driving device 8; the middle part of the valve body 1 is provided with a clapboard 2 along the axial direction to divide the internal space of the valve body 1 into 2 independent channels; a valve plate, namely a valve plate I3 and a valve plate II 4, is arranged in each channel respectively; the valve body 1 is externally provided with a first valve plate driving device 7 and a second valve plate driving device 8, wherein the first valve plate driving device 7 is connected with the first valve plate 3 and drives the first valve plate to rotate, and the second valve plate driving device 8 is connected with the second valve plate 4 and drives the second valve plate to rotate.
The inlet end of the valve body 1 is connected with an air suction pipeline at the lower part of an air box of the sintering machine, namely 2 channels are communicated with the air suction pipeline; 2 channels at the outlet end of the valve body 1 are respectively communicated with a large sintering flue and a sintering hot air circulation pipeline; the first valve plate 3 and the second valve plate 4 are both arranged close to the inlet end of the valve body 1.
The cross section of the inlet end of the valve body 1 is circular and is provided with a connecting flange, the cross sections of channels at the positions of the first valve plate 3 and the second valve plate 4 are semicircular, and the first valve plate 3 and the second valve plate 4 are semicircular valve plates; the outlet end of the valve body 1 is provided with a reducing section, and the cross sections of the joints of the 2 channels, the sintering large flue and the sintering hot air circulation pipeline are all rectangular.
The first valve plate 3 and the second valve plate 4 are arranged in a staggered mode along the axial direction of the valve body 1; the first valve plate 3 and the second valve plate 4 are rotatably connected with the valve body 1 through corresponding valve plate shafts 6, and one ends of the valve plate shafts 6 extend out of the valve body 2 and are connected with corresponding valve plate driving devices.
The first valve plate driving device 7 and the second valve plate driving device 8 are both intelligent electric actuators or electro-hydraulic cylinders and have local and remote operation functions.
The utility model relates to a double-channel flap valve, which also comprises a valve plate sealing structure; the valve plate sealing structure consists of 2 semicircular sealing frameworks 5 and a graphite disc plate; sealing frameworks 5 are respectively arranged in the 2 channels corresponding to the closing positions of the first valve plate 3 and the second valve plate 4, semicircular annular framework grooves are formed in the sealing frameworks 5 on one sides facing the first valve plate 3 and the second valve plate 4, graphite packing is embedded in the framework grooves, and semicircular annular bosses matched with the framework grooves are respectively arranged on the corresponding sides of the first valve plate 3 and the second valve plate 4.
As shown in fig. 4 and 5, the dual-channel flap valve of the present invention further includes a first valve neck 9, a second valve neck 12, a spacer 13 and a connecting plate 14; a first valve neck 9 and a second valve neck 12 are respectively arranged on two sides of the valve body 1, one end of the valve plate shaft 6 penetrates out of the valve body 1 and then extends into the first valve neck 9, and the outer end of the first valve neck 9 is sealed by an end cover 10; the other end of the valve plate shaft 6 penetrates through the valve body 1 and the second valve neck 12 and then is connected with a corresponding valve plate driving device through a connecting disc 14, and a spacer 13 is arranged between the second valve neck 12 and the connecting disc 14; sliding bearings 11 are respectively arranged between the first valve neck 9 and the valve plate shaft 6 and between the second valve neck 12 and the valve plate shaft 6.
The double-channel flap valve adopts the single-open valve plate I3 and the valve plate II 4, and the valve plate I3 and the valve plate II 4 are respectively driven by the corresponding intelligent electric actuator or the electro-hydraulic cylinder independently, so that the drive is stable, the remote and on-site operation can be realized, and the valve plate can be ensured to rotate in place when the valve is closed; through the sealed cooperation of valve plate and sealed skeleton 5, improve sealed effect, guarantee to play the effect that keeps out the wind and keep off the material. Because 2 valve plates all drive alone, when the valve plate in one of them passageway was opened, the valve plate in the other passageway was closed, can conveniently switch between sintering flue gas outward discharge mode and sintering heated air circulation mode in a flexible way.
The first valve plate 3 and the second valve plate 4 are arranged at the inlet end of the valve body 1, the first valve plate 3 and the second valve plate 4 are respectively connected with corresponding valve plate driving devices, and the first valve plate driving device 7 and the second valve plate driving device 8 are arranged outside the valve body 1; the valve plate I3 and the valve plate II 4 can rotate between a limit opening position and a limit closing position under the drive of the corresponding valve plate drive device; the inner wall of the valve body 1 is provided with a sealing framework 5 at the position corresponding to the closing position of the valve plate, when the first valve plate 3 and the second valve plate 4 rotate to the limit closing position, the first valve plate and the second valve plate are matched and spliced with a framework groove on the sealing framework 5 through a boss, and are sealed through graphite packing, so that the sealing connection between the valve body 1 and the valve plate is realized.
The cross sections of 2 channels in the valve body 1 are semicircular, and the valve plate I3, the valve plate II 4, the framework groove and the lug boss are semicircular correspondingly.
The first valve plate 3 and the second valve plate 4 are arranged in a staggered mode so as to leave enough movement space for the first valve plate driving device 7 and the second valve plate driving device 8. And barrier strips can be arranged on the straight sides of the first valve plate 3 and the second valve plate 4, namely the joints of the 2 valve plates for sealing.
The inlet end of the double-channel flap valve of the utility model is connected with the air suction pipeline at the lower part of the sintering machine bellows, and the outlet end is respectively connected with the sintering big flue and the sintering hot air circulation pipeline through 2 channels; when the sintering production system operates in a hot air circulation mode, a channel communicated with the sintering large flue is closed, and high-temperature flue gas generated by sintering enters a sintering hot air circulation pipeline through another channel. If the hot air circulating system needs offline maintenance, the channel communicated with the sintering hot air circulating pipeline is closed, and the sintering production system operates in the original flue gas discharge mode, namely, high-temperature flue gas generated by sintering enters a sintering large flue through another channel, is dedusted by dedusting equipment and is discharged to the atmosphere through a chimney.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (7)
1. A double-channel flap valve is characterized by comprising a valve body, a partition plate, a first valve plate, a second valve plate, a first valve plate driving device and a second valve plate driving device; the middle part of the valve body is provided with a clapboard along the axial direction to divide the internal space of the valve body into 2 independent channels; a valve plate, namely a valve plate I and a valve plate II, is arranged in each channel respectively; the valve body is externally provided with a first valve plate driving device and a second valve plate driving device, wherein the first valve plate driving device is connected with the first valve plate and drives the first valve plate to rotate, and the second valve plate driving device is connected with the second valve plate and drives the second valve plate to rotate.
2. The dual-channel flap valve according to claim 1, wherein the inlet end of the valve body is connected with an air suction pipeline at the lower part of a sintering machine bellows, namely 2 channels are communicated with the air suction pipeline; 2 channels at the outlet end of the valve body are respectively communicated with the large sintering flue and the sintering hot air circulation pipeline; the first valve plate and the second valve plate are both arranged close to the inlet end of the valve body.
3. The double-channel flap valve as claimed in claim 2, wherein the cross section of the inlet end of the valve body is circular and is provided with a connecting flange, the cross sections of the channels at the positions of the first valve plate and the second valve plate are both semicircular, and the first valve plate and the second valve plate are both semicircular valve plates; the outlet end of the valve body is provided with a reducing section, and the cross sections of the joints of the 2 channels, the sintering large flue and the sintering hot air circulation pipeline are all rectangular.
4. The dual-channel flap valve as claimed in claim 3, wherein the first valve plate and the second valve plate are staggered along the axial direction of the valve body; the first valve plate and the second valve plate are rotatably connected with the valve body through corresponding valve plate shafts, and one ends of the valve plate shafts extend out of the valve body and are connected with corresponding valve plate driving devices.
5. The dual channel flap valve according to claim 1, wherein the first valve plate driving device and the second valve plate driving device are both intelligent electric actuators or electro-hydraulic cylinders, and both have local and remote operation functions.
6. The dual channel flap valve according to claim 1, further comprising a valve plate sealing structure; the valve plate sealing structure consists of 2 semicircular sealing frameworks and a graphite disc plate; and sealing frameworks are respectively arranged in the 2 channels corresponding to the closing positions of the first valve plate and the second valve plate, semicircular framework grooves are formed in the sealing frameworks at one sides facing the first valve plate and the second valve plate, graphite packing is embedded in the framework grooves, and semicircular bosses matched with the framework grooves are respectively arranged at the corresponding sides of the first valve plate and the second valve plate.
7. The dual-channel flap valve according to claim 1, further comprising a first valve neck, a second valve neck, a spacer bush and a connecting disc; the two sides of the valve body are respectively provided with a first valve neck and a second valve neck, one end of the valve plate shaft penetrates out of the valve body and then extends into the first valve neck, and the outer end of the first valve neck is sealed by an end cover; the other end of the valve plate shaft penetrates through the valve body and the second valve neck and then is connected with a corresponding valve plate driving device through a connecting disc, and a spacer bush is arranged between the second valve neck and the connecting disc; sliding bearings are respectively arranged between the first valve neck and the valve plate shaft and between the second valve neck and the valve plate shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220472767.4U CN217108237U (en) | 2022-03-04 | 2022-03-04 | Double-channel flap valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220472767.4U CN217108237U (en) | 2022-03-04 | 2022-03-04 | Double-channel flap valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217108237U true CN217108237U (en) | 2022-08-02 |
Family
ID=82600293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220472767.4U Active CN217108237U (en) | 2022-03-04 | 2022-03-04 | Double-channel flap valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217108237U (en) |
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2022
- 2022-03-04 CN CN202220472767.4U patent/CN217108237U/en active Active
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