CN212158181U - Flue gas circulating device, flue gas circulating upper cover and sealing device thereof - Google Patents
Flue gas circulating device, flue gas circulating upper cover and sealing device thereof Download PDFInfo
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- CN212158181U CN212158181U CN201922152090.7U CN201922152090U CN212158181U CN 212158181 U CN212158181 U CN 212158181U CN 201922152090 U CN201922152090 U CN 201922152090U CN 212158181 U CN212158181 U CN 212158181U
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Abstract
The utility model belongs to the technical field of the sintering gas circulation, a gas circulation upper shield sealing device is disclosed, include: the sealing device comprises a sealing bracket, a first sealing gasket and a third sealing gasket, wherein the first sealing gasket and the third sealing gasket are fixed on the sealing bracket; the seal holder includes: the device comprises a support rod, a limiting plate, a return spring and a floating plate; the floating plate is fixed on the supporting rod, the limiting plate is provided with a limiting hole, the supporting rod is embedded in the limiting hole, the first end of the supporting rod is provided with a locking part, and the reset spring is sleeved on the supporting rod and is limited between the locking part and the limiting plate; the floating plate is fixed on the supporting rod and is positioned between the second end of the supporting rod and the limiting plate; the first gasket includes: a first fixing portion and a first contact sealing portion; the first fixing part is fixed on the floating plate; the third gasket includes: a third fixing portion, a third contact sealing portion, and a fourth fixing portion; the third fixed part is fixed on the floating plate and is positioned between the support contact part and the support rod, and the first contact sealing part is arranged between the third fixed part and the fourth fixed part. The utility model discloses sealing performance promotes by a wide margin.
Description
Technical Field
The utility model relates to a sintering gas circulation technical field, in particular to gas circulation device, gas circulation upper shield and sealing device thereof.
Background
In the sintering flue gas circulation, the flue gas is distributed on the charge level through the flue gas circulation upper cover; in order to prevent the leakage of the flue gas, structures such as a normal sealing strip and the like are usually arranged between the flue gas circulation upper cover and the trolley and used for limiting the leakage of the flue gas. However, as the production cycle increases, the sealing performance may deteriorate drastically, resulting in personnel injury and heat loss.
SUMMERY OF THE UTILITY MODEL
The utility model provides a flue gas circulating device, flue gas circulation upper shield and sealing device thereof solves among the prior art flue gas circulation upper shield sealing performance poor, unstable technical problem.
In order to solve the technical problem, the utility model provides a flue gas circulation upper shield sealing device, include: the sealing device comprises a sealing bracket, a first sealing gasket and a third sealing gasket, wherein the first sealing gasket and the third sealing gasket are fixed on the sealing bracket;
the seal holder includes: the device comprises a support rod, a limiting plate, a return spring and a floating plate;
the floating plate is fixed on the supporting rod, a limiting hole is formed in the limiting plate, a rod body of the supporting rod is embedded in the limiting hole, a locking part is arranged at the first end of the supporting rod, the return spring is sleeved on the rod body of the supporting rod, and the return spring is limited between the locking part and the first plate surface of the limiting plate;
the floating plate is fixed on the supporting rod, is positioned between the second end of the supporting rod and the second plate surface of the limiting plate, and is provided with a supporting contact part;
the first gasket includes: a first fixing portion and a first contact sealing portion;
the first fixing part is fixed on the floating plate;
the third gasket includes: a third fixing portion, a third contact sealing portion, and a fourth fixing portion;
the three fixing parts are fixed on the floating plate, the third fixing part is located between the support contact part and the supporting rod, the fourth fixing part is provided with a fastening structure used for being fixed on the upper cover, and the first contact sealing part is arranged between the third fixing part and the fourth fixing part.
A flue gas circulation upper hood, comprising: the upper cover body and the smoke circulating upper cover sealing device;
the limiting plate is fixed on the upper cover body, the first contact sealing portion abuts against the upper cover body, the fourth fixing portion is fixed on the upper cover body, and the third contact sealing portion is bent into an arc shape to form an elastic sealing structure.
Further, the seal holder further comprises: a groove pulley pair;
the groove pulley pair is rotationally fixed on the upper cover body and symmetrically arranged on two sides of the rod body of the supporting rod.
Further, the number of the groove pulley pairs is multiple.
Furthermore, the number of the groove pulley pairs is two, and the two groove pulley pairs are respectively arranged on two sides of the floating plate.
Further, the flue gas circulation upper shield sealing device still includes: a second gasket;
the second gasket includes: the second fixing part, the nesting part and the second contact sealing part;
the second fixing part is fixed on the floating plate, the nesting part is provided with a nesting through hole, the nesting through hole is sleeved on the rod body of the supporting rod, and the second contact sealing part is abutted against the upper cover body.
Furthermore, the supporting contact part is provided with a convex rib.
Further, the flue gas circulation upper shield still includes: a flexible magnetic seal brush;
the flexible magnetic sealing brush is fixed on the inner side of the upper sealing cover.
A flue gas recirculation apparatus comprising: the trolley and the smoke circulating upper cover;
the supporting contact part is abutted against the top end face of the side wall of the trolley, and the third contact sealing part is elastically abutted against the side wall of the trolley.
Further, the first fixing portion is fixed on the upper plate surface of the floating plate, the third fixing portion is fixed on the lower plate surface of the floating plate, and the fourth fixing portion is located below the floating plate.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the smoke circulating device, the smoke circulating upper cover and the sealing device of the smoke circulating upper cover, elastic contact between the upper cover and the trolley is achieved through the sealing support, impact between the upper cover and the trolley is buffered, and therefore a sealing gap is reduced, and reliability and stability of sealing performance are relatively improved; meanwhile, a first sealing gasket is arranged on the floating plate and used for isolating the sealing support to form a first seal, and on the other hand, the third sealing gasket is arranged on the floating plate and the fourth fixing part is used for fixing the upper cover, so that the third sealing gasket forms a bent structure and is in contact sealing with the trolley to form a third seal; and a continuous sealing structure isolation support structure formed by the first seal, the floating plate and the third seal is formed, so that elastic contact seal is realized on the basis of reducing the seal gap on the whole, and the sealing quality and stability are ensured.
Drawings
Fig. 1 is a schematic structural view of a flue gas circulation upper cover sealing device provided by an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a sealing bracket according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2;
fig. 4 is a schematic structural diagram of a bracket main body according to an embodiment of the present invention;
fig. 5 is a schematic view of a floating plate sealing structure provided in an embodiment of the present invention;
fig. 6 is a schematic view of an end sealing structure of an upper cover according to an embodiment of the present invention;
fig. 7 is a schematic view of a sealing structure between the end of the trolley and the end of the upper cover according to an embodiment of the present invention.
Detailed Description
The embodiment of the application provides a gas circulation upper shield sealing device, solves among the prior art gas circulation upper shield sealing performance poor, unstable technical problem.
In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the present disclosure, and it should be understood that the specific features in the embodiments and examples of the present disclosure are detailed descriptions of the technical solutions of the present disclosure, but not limitations of the technical solutions of the present disclosure, and the technical features in the embodiments and examples of the present disclosure may be combined with each other without conflict.
Referring to fig. 1, a flue gas circulation upper cover sealing device includes: the sealing device comprises a sealing bracket, a first sealing gasket 91 and a third sealing gasket 93 which are fixed on the sealing bracket; specifically, the flue gas circulation upper cover sealing device is fixed on the upper cover 1, so that elastic contact sealing between the upper cover 1 and the trolley 2 is realized, and a sealing gap can be further inhibited to realize stable sealing.
Referring to fig. 1, 2 and 4, in particular, the sealing bracket comprises: the device comprises a support rod 4, a limiting plate 5, a return spring 6 and a floating plate 3; the floating plate 3 is fixed on the supporting rod 4, a limiting hole is formed in the limiting plate 5, a rod body of the supporting rod 4 is embedded in the limiting hole, a locking part 61 is arranged at the first end of the supporting rod 4, the return spring 6 is sleeved on the rod body of the supporting rod 4, and the return spring 6 is limited between the locking part 61 and the first plate surface of the limiting plate 5; thereby enabling the support rod 4 to have axial elastic resetting capability.
On the basis, the floating plate 3 is fixed on the supporting rod 4, the floating plate 3 is positioned between the second end of the supporting rod 4 and the second plate surface of the limiting plate 5, and a supporting contact part is arranged on the floating plate 3; generally, the supporting contact portion is located on the lower plate surface of the floating plate, so that in an assembly state, the floating plate 3 is placed on the trolley 2 through the supporting contact portion, when the trolley 2 vibrates, the sealing support can absorb vibration energy to a certain extent, a sealing gap between the upper cover 1 and the trolley 2 is reduced, and reliability and stability of sealing performance are improved to a certain extent.
The first gasket 91 includes: a first fixing portion and a first contact sealing portion; the first fixed part is fixed on the floating plate 3; after the use and assembly, the first contact sealing part is abutted against the inner wall of the upper cover 1, and a first seal is realized.
The third gasket 93 includes: a third fixing portion, a third contact sealing portion, and a fourth fixing portion; the third fixing part is fixed on the floating plate 3, the third fixing part is positioned between the support contact part and the support rod 4, the fourth fixing part is provided with a fastening structure for fixing on the upper cover 1, and the first contact sealing part is arranged between the third fixing part and the fourth fixing part, namely, in an assembly working state, the fourth fixing part is fixed on the upper cover 1 and is generally positioned below the sealing support, so that the third contact sealing part is bent to form a house-shaped structure for being in elastic contact with the side wall of the trolley 2, and good sealing is realized; it should be noted that the convex part of the curved third contact seal portion abuts against the trolley 2, and it should be noted that the curved contact portion has a high resilience space, i.e. a good elastic contact pressure, so as to ensure a reliable contact seal and form a third seal.
Generally, the third fixing portion may be extended to abut against the inner sidewall of the upper cover 1. The extensions are also open to facilitate passage of the post 4.
Therefore, on the whole, a connection sealing structure based on the first sealing, the floating plate 3 and the third sealing is realized, so that a gap between the upper cover 1 and the trolley 2 is sealed; meanwhile, the expansion of the sealing gap can be inhibited due to the elastic structure of the sealing support, so that a high-quality sealing structure is integrally formed.
Generally, the flexible magnetic seal brush 8 is erected before the sixth seal 96 is hung on the outer side of the balustrade of the cart 2 to protect the seal and enhance the sealing performance.
The embodiment also provides an upper cover structure provided with the sealing device; the following is specific.
A flue gas circulation upper hood, comprising: the upper shield body and the flue gas circulation upper shield sealing device.
The limiting plate 5 is fixed on the upper cover body, the first contact sealing portion abuts against the upper cover body, the fourth fixing portion is fixed on the upper cover body, and the third contact sealing portion is bent into an arc shape to form an elastic sealing structure.
Generally, the first gasket 91 is bent in an assembled state, and the contact seal portion is in close contact with and abuts on the upper cover body, thereby having a large seal surface; meanwhile, the first sealing gasket 91 can be firmly pressed on the inner wall of the upper cover 1 under the high-temperature and high-pressure state in the upper cover; and the sealing reliability is further improved.
Referring to fig. 2 and 3, further, the sealing performance is affected to a certain extent due to the influence of the working condition vibration and the like, and in view of this, the sealing bracket further includes: a pair of grooved pulleys 71; the pair of groove pulleys 71 is rotatably fixed on the inner wall of the upper cover 1, and the pair of groove pulleys 7 and 71 are symmetrically arranged on two sides of the rod body of the supporting rod 4, so that radial shaking can be limited under the condition that the smooth axial movement of the supporting rod is ensured, and the sealing reliability of the upper cover 1 is ensured.
In order to ensure the reliability of the limit, the number of the groove pulley pairs 71 is multiple. In this embodiment, the number of the groove pulley pairs 71 is two, and the two groove pulley pairs 71 are respectively disposed on two sides of the floating plate 3. Namely, a second groove pulley pair 72 is arranged below the floating plate 3 and above the limiting plate 5; ensuring stable action of the floating plate 3.
Further, the flue gas circulation upper shield sealing device still includes: a second seal gasket 92; the second gasket 92 includes: the second fixing part, the nesting part and the second contact sealing part; the second fixing part is fixed on the floating plate 3, the nesting part is provided with a nesting through hole, the nesting through hole is sleeved on the rod body of the support rod 4, and the second contact sealing part is abutted against the inner wall of the body of the upper cover 1; and a second seal is formed, so that the sealing performance is further enhanced.
Because the displacement of platform truck 2 can be responded to kickboard 3 to realize elastic buffer, in order to reduce the contact surface not smooth, the interference of debris etc., the bead has been seted up to the support contact site to reduce the contact surface, thereby the vibration of response platform truck 2 that can be stable promotes sealed stability.
Further, the flue gas circulation upper shield still includes: a flexible magnetic seal brush 8; the flexible magnetic sealing brush 8 is fixed on the inner side of the upper sealing cover. Generally, the flexible magnetic sealing brush 8 is located at the lowest side to realize the fourth sealing, and can adsorb and accumulate magnetic particles to strengthen the sealing effect.
Referring to fig. 5, a fourth gasket 95 is also disposed on the floating plate 3, so that two connected fourth gaskets 95 are stacked to seal a gap therebetween; it should be noted that all the fourth gaskets 95 are stacked in the same direction, similar to the stacking direction of fish scales, so that a good sealing effect can be maintained under the impact of the air flow in the upper housing.
Referring to fig. 6 and 7, it is worth explaining that the edge of the fourth gasket 95 at the most edge is fixed on the upper housing 1 with a margin, so that the floating plate 3 is not influenced to move up and down while a good seal is realized.
Generally, both ends of the upper cover 1 are also provided with a drooping fifth sealing gasket 94, which is similar to a door curtain structure, and the lower edge of the fifth sealing gasket 95 is abutted against the material surface to realize sealing; the lower edge is cut into broken edges generally, so that the material surface is suitable for the irregular state.
Further, a sixth gasket 96 may be provided in an end region of the cart 2 to seal a gap remaining between the upper cover 1 and the end of the cart 2.
The embodiment also provides an integral smoke circulating device comprising the upper cover; as will be described in detail below.
A flue gas recirculation apparatus comprising: the trolley 2 and the smoke circulating upper cover; the supporting contact part is abutted against the top end face of the side wall of the trolley, and the third contact sealing part is elastically abutted against the side wall of the trolley.
Further, the first fixing portion is fixed on the upper plate surface of the floating plate 3, the third fixing portion is fixed on the lower plate surface of the floating plate 3, and the fourth fixing portion is located below the floating plate 3.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
according to the smoke circulating device, the smoke circulating upper cover and the sealing device of the smoke circulating upper cover, elastic contact between the upper cover and the trolley is achieved through the sealing support, impact between the upper cover and the trolley is buffered, and therefore a sealing gap is reduced, and reliability and stability of sealing performance are relatively improved; meanwhile, a first sealing gasket is arranged on the floating plate and used for isolating the sealing support to form a first seal, and on the other hand, the third sealing gasket is arranged on the floating plate and the fourth fixing part is used for fixing the upper cover, so that the third sealing gasket forms a bent structure and is in contact sealing with the trolley to form a third seal; and a continuous sealing structure isolation support structure formed by the first seal, the floating plate and the third seal is formed, so that elastic contact seal is realized on the basis of reducing the seal gap on the whole, and the sealing quality and stability are ensured.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A flue gas circulation upper shield sealing device, characterized by includes: the sealing device comprises a sealing bracket, a first sealing gasket and a third sealing gasket, wherein the first sealing gasket and the third sealing gasket are fixed on the sealing bracket;
the seal holder includes: the device comprises a support rod, a limiting plate, a return spring and a floating plate;
the floating plate is fixed on the supporting rod, a limiting hole is formed in the limiting plate, a rod body of the supporting rod is embedded in the limiting hole, a locking part is arranged at the first end of the supporting rod, the return spring is sleeved on the rod body of the supporting rod, and the return spring is limited between the locking part and the first plate surface of the limiting plate;
the floating plate is fixed on the supporting rod, is positioned between the second end of the supporting rod and the second plate surface of the limiting plate, and is provided with a supporting contact part;
the first gasket includes: a first fixing portion and a first contact sealing portion;
the first fixing part is fixed on the floating plate;
the third gasket includes: a third fixing portion, a third contact sealing portion, and a fourth fixing portion;
the three fixing parts are fixed on the floating plate, the third fixing part is located between the support contact part and the supporting rod, the fourth fixing part is provided with a fastening structure used for being fixed on the upper cover, and the first contact sealing part is arranged between the third fixing part and the fourth fixing part.
2. A flue gas circulation upper shield, characterized by comprising: an upper housing body and a flue gas circulation upper housing sealing device as claimed in claim 1;
the limiting plate is fixed on the upper cover body, the first contact sealing portion abuts against the upper cover body, the fourth fixing portion is fixed on the upper cover body, and the third contact sealing portion is bent into an arc shape to form an elastic sealing structure.
3. The fume circulation upper hood according to claim 2, wherein said seal holder further comprises: a groove pulley pair;
the groove pulley pair is rotationally fixed on the upper cover body and symmetrically arranged on two sides of the rod body of the supporting rod.
4. The flue gas recirculation upper hood according to claim 3, characterized in that: the number of the groove pulley pairs is multiple.
5. The flue gas recirculation upper hood according to claim 4, characterized in that: the number of the groove pulley pairs is two, and the two groove pulley pairs are respectively arranged on two sides of the floating plate.
6. The flue gas recirculation upper hood according to claim 2, wherein the flue gas recirculation upper hood sealing device further comprises: a second gasket;
the second gasket includes: the second fixing part, the nesting part and the second contact sealing part;
the second fixing part is fixed on the floating plate, the nesting part is provided with a nesting through hole, the nesting through hole is sleeved on the rod body of the supporting rod, and the second contact sealing part is abutted against the upper cover body.
7. The flue gas recirculation upper hood according to claim 2, characterized in that: the supporting contact part is provided with a convex edge.
8. The flue gas recirculation upper hood according to claim 2, further comprising: a flexible magnetic seal brush;
the flexible magnetic sealing brush is fixed on the inner side of the upper sealing cover.
9. A flue gas recirculation apparatus, comprising: a trolley and a flue gas circulation upper cover according to claim 8;
the supporting contact part is abutted against the top end face of the side wall of the trolley, and the third contact sealing part is elastically abutted against the side wall of the trolley.
10. The flue gas recirculation device according to claim 9, wherein the first fixing portion is fixed to the upper surface of the floating plate, the third fixing portion is fixed to the lower surface of the floating plate, and the fourth fixing portion is located below the floating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922152090.7U CN212158181U (en) | 2019-12-05 | 2019-12-05 | Flue gas circulating device, flue gas circulating upper cover and sealing device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922152090.7U CN212158181U (en) | 2019-12-05 | 2019-12-05 | Flue gas circulating device, flue gas circulating upper cover and sealing device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212158181U true CN212158181U (en) | 2020-12-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922152090.7U Active CN212158181U (en) | 2019-12-05 | 2019-12-05 | Flue gas circulating device, flue gas circulating upper cover and sealing device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212158181U (en) |
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2019
- 2019-12-05 CN CN201922152090.7U patent/CN212158181U/en active Active
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