CN217560363U - Double-chamber kiln discharging platform sealing device - Google Patents
Double-chamber kiln discharging platform sealing device Download PDFInfo
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- CN217560363U CN217560363U CN202221436440.8U CN202221436440U CN217560363U CN 217560363 U CN217560363 U CN 217560363U CN 202221436440 U CN202221436440 U CN 202221436440U CN 217560363 U CN217560363 U CN 217560363U
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Abstract
The utility model discloses a two thorax kilns platform sealing device of unloading, be provided with resistant firebrick including the kiln shell inboard, reach under resistant firebrick the outside of kiln shell is the concrete of L type, concrete horizontal position with be equipped with steel foundatin backing plate between resistant firebrick, steel foundatin backing plate with be equipped with cement foundation between the concrete, the inboard below the steel foundatin backing plate is equipped with the toper hopper, toper hopper bottom outer lane is equipped with the platform of unloading, toper hopper bottom below is equipped with out grey dull and stereotyped, the concrete bottom in the platform edge round of unloading is equipped with a steel ring, the steel ring with it is equipped with the ripple spring to unload between the platform, concrete horizontal position upper surface steel foundatin backing plate top outside radially evenly is provided with anchor assembly. The utility model discloses can solve the problem that current two thorax kiln ejection of compact ash bucket welding seams directly expose and lead to the welding seam to split in lime finished product material.
Description
Technical Field
The utility model belongs to the technical field of steel manufacturing and equipment technique and specifically relates to a sealing device that is used for two thorax kilns platform of unloading.
Background
The double-hearth kiln has two hearths, one hearth stores heat and the other hearth carries out calcination. The direction is changed once every 14 minutes, the hydraulic valve acts during the direction change to release the kiln pressure, and the position of the flashboard is changed at the same time to realize the conversion between the calcining hearth and the heat storage hearth. In the calcining chamber, coal gas was pressurized by a pressurizing machine, fed from 33 lances into the calcining chamber, and mixed with combustion-supporting air introduced from the upper part of the kiln to be combusted. The flue gas generated by calcination flows to the heat storage chamber through the annular channel and the middle channel, flows upwards under the action of cooling air from bottom to top, stores heat of stones which are just added into the heat storage chamber, and enters the flue gas dust remover after the temperature is reduced. Every cycle the system feeds in raw material three times to the heat accumulation thorax, and when kiln section of thick bamboo was closed the apron and is opened at every turn, for avoiding the raise dust, the system can promote dust exhausting fan rotational speed. In order to ensure the stable material level, the finished product generated by calcination is accurately measured by a material level meter, an ash discharging platform is pushed by a hydraulic cylinder, and lime blocks on the upper part of the ash discharging platform in the kiln fall into a small bin at the bottom of the kiln from the edge. During the reversing period, the discharging flashboard is opened, and the finished product can enter a finished product production line.
A general Maerz kiln discharge ash bucket structure is shown in figures 1 and 2 and comprises a refractory brick 2 arranged on the inner side of a kiln shell 1, L-shaped concrete 7 is arranged below the refractory brick 2 and on the outer side of the kiln shell 1, a steel foundation backing plate 3 is arranged between the horizontal position of the concrete 7 and the refractory brick 2, a conical hopper 5 is arranged on the inner side below the steel foundation backing plate 3, a discharging platform 10 is arranged on the outer ring of the bottom of the conical hopper 5, an ash discharging flat plate 6 is arranged below the bottom of the conical hopper 5, and the steel foundation backing plate 3 is attached to a cement foundation 4 on the horizontal position of the concrete 7 and supports the refractory bricks 2 of two kiln chambers. In the design of partial double-hearth kiln, a steel base backing plate 3 and a coaming of a conical hopper 5 are welded, so that a welding seam surface is exposed, and the welding seam is contacted with lime finished product materials. Because the sizes of the finished lime particles are different, the temperature difference of the finished lime products is easy to appear through calcination. The temperature of materials borne by the welding seams of the enclosing plates of the ash bucket is different, and finally, the materials crack under the action of thermal stress to generate air leakage.
And the ash discharge hopper 5 of the discharging platform 10 is positioned in a concrete supporting structure of a 15-meter platform of the Mailz kiln, the position is narrow, welding cannot be carried out outside the kiln body at all, and after materials of the kiln are discharged, personnel enter the inside of the kiln to be treated. This work greatly affects the normal production of the kiln.
Disclosure of Invention
The utility model aims to solve the problem that a two thorax kilns platform sealing device of unloading is provided to solve the problem that current two thorax kilns ejection of compact ash bucket welding seams directly expose and lead to the welding seam to split in lime finished product material.
In order to solve the above problem, the technical scheme of the utility model is that: this double-hearth kiln platform sealing device of unloading includes that the kiln shell inboard is provided with resistant firebrick, reach under resistant firebrick the outside of kiln shell is the concrete of L type, concrete horizontal position with be equipped with steel foundatin backing plate between resistant firebrick, steel foundatin backing plate with be equipped with cement basis between the concrete, the inboard below steel foundatin backing plate is equipped with the toper hopper, toper hopper bottom outer lane is equipped with the platform of unloading, toper hopper bottom below is equipped with out grey flat board, the concrete bottom in the platform edge round of unloading is equipped with a steel ring, the steel ring with it is equipped with ripple spring to unload between the platform, concrete horizontal position upper surface steel foundatin backing plate top outside radially evenly is provided with anchor assembly.
In the above technical solution, a more specific solution may be: the diameter of the inner ring of the steel circular ring is not larger than the diameter of the outer circular arc of the unloading platform, and the diameter of the outer ring of the steel circular ring is not smaller than the diameter of the outer circular arc of the unloading platform.
And further: the steel ring is arranged in the bottom surface of the concrete.
Further: the steel ring is fixed on the surface of the bottom of the concrete through a plurality of groups of screw nuts.
Further: the radial angle difference of the two adjacent groups of screw nuts at the center of the steel circular ring is 20-40 degrees.
Further: the screw nut is arranged on the outer side of the corrugated spring.
Since the technical scheme is used, compared with the prior art, the utility model following beneficial effect has:
1. the double-chamber kiln discharging platform sealing device is combined with the steel ring by utilizing concrete, so that the sealing of the ash discharging hopper is better realized, and the air flow in the kiln is prevented from leaking to the outside to pollute the environment; meanwhile, the kiln can be repaired without emptying, so that the unplanned shutdown of the kiln is avoided;
2. the double-chamber kiln discharging platform sealing device is arranged at the bottom of hopper concrete, adopts a form of connecting a steel ring with a pre-embedded steel ring or a screw nut, and is respectively welded between the steel ring and the top of a discharging platform through corrugated springs, so that air flow can be prevented from leaking to the external environment;
3. the sealing device for the discharging platform of the double-hearth kiln is arranged on the upper part of the conical hopper, the anchoring piece and the casting material are arranged above the outer side of the steel foundation base plate of the horizontal position of the concrete, the sealing is realized by using a casting mode, and the sealing device can be better suitable for the high-temperature environment of the part.
Drawings
FIG. 1 is a front view of the prior art;
FIG. 2 is a top view of the prior art;
fig. 3 is a front view of a first embodiment of the present invention;
FIG. 4 is an enlarged view at A of FIG. 3;
fig. 5 is a front view of a second embodiment of the present invention;
FIG. 6 is an enlarged view at B of FIG. 5;
FIG. 7 is a top view of a second steel ring according to an embodiment of the present invention;
the labels in the figure are: the device comprises a kiln shell 1, refractory bricks 2, a steel foundation base plate 3, a cement foundation 4, a conical hopper 5, an ash discharge flat plate 6, concrete 7, a steel ring 9, a discharging platform 10, a corrugated spring 11, anchoring parts 12, a pouring material 13, a sealing gasket 14 and a screw nut 15.
Detailed Description
The embodiments of the present invention will be described in detail with reference to the accompanying drawings:
the first embodiment is as follows:
as shown in fig. 3 and 4, the sealing device for the discharging platform of the double-hearth kiln comprises a kiln shell 1, wherein refractory bricks 2 are arranged on the inner side of the kiln shell 1, the outer side of the kiln shell 1 below the refractory bricks 2 is provided with L-shaped concrete 7, a steel foundation base plate 3 is arranged between the horizontal position of the concrete 7 and the refractory bricks 2, a cement foundation 4 is arranged between the steel foundation base plate 3 and the concrete 7, a conical hopper 5 is arranged on the inner side below the steel foundation base plate 3, the outer ring at the bottom of the conical hopper 5 is provided with a discharging platform 10, and an ash discharging flat plate 6 is arranged below the bottom of the conical hopper 5.
Uniformly welding anchoring parts 12 on the outer side of the upper surface of the steel foundation base plate 3 of the horizontal position of the concrete 7 in the radial direction, wherein the distance between the adjacent anchoring parts is less than 150mm, manufacturing a circular template to surround the steel foundation base plate (10 mm thick) and the cement foundation (10 mm thick), and pouring by using a pouring material 13, wherein the thickness of the pouring material is about 40mm, and the pouring material completely covers the steel foundation base plate and the cement foundation; after the cement mortar is hardened, the template is removed, so that the airflow in the kiln is effectively prevented from flowing out between the cement foundation and the concrete. The sealing is realized by using a pouring mode, and the high-temperature environment of the part can be better adapted.
A steel circular ring 9 is arranged at the bottom of the concrete 7 at the edge of the unloading platform 10 in a circle, the diameter a of the inner ring of the steel circular ring 9 is not more than the diameter b of the outer circular arc of the unloading platform 10, the diameter c of the outer ring of the steel circular ring 9 is not less than the diameter b of the outer circular arc of the unloading platform 10, namely a is more than or equal to b and more than or equal to c; the central diameter of the steel circular ring 9 is 4.3m, which is consistent with the diameter of the outer circular arc of the discharging platform 10 by 4.3mm, the diameter of the inner ring of the steel circular ring 9 is 4mm, and the diameter of the outer ring is 4.5mm; the steel ring 9 is embedded into the bottom surface of the concrete 7, a ripple spring 11 is arranged between the steel ring 9 and the discharging platform 10, the surface of the steel ring 9 is welded on the ripple spring 11, the bottom of the ripple spring is welded on the top of the discharging platform 10, and the ripple spring 11 is a spiral ripple pipe and can better adapt to the change of the high temperature and cooling state of the kiln; utilize the steel ring 9 of platform 10 edge round of unloading, or pre-buried steel ring, or screw nut connects the steel ring, through ripple spring 11, weld respectively between steel ring 9 and platform 10 tops of unloading, can avoid the air current to leak the external environment.
The second embodiment:
as shown in fig. 5, 6 and 7, in the sealing device for the discharging platform of the double-hearth kiln, the steel ring 9 is fixed on the bottom surface of the concrete 7 through a plurality of sets of screw nuts, the radial angle difference between the centers of the two adjacent sets of screw nuts 15 and the steel ring 9 is 30 °, the radial angle difference between the mounting holes of the steel ring 9 for mounting screws is d =30 °, the screw nuts 15 are arranged on the outer side of the corrugated spring 11 and are tightly attached to the bottom of the concrete 7, and the steel ring 9 and the concrete 7 are sealed by the sealing gasket 14. Other structures are as in embodiment one.
In other embodiments, the radial angles of the two adjacent screw nuts in the center of the steel ring 9 may also be different by any value of 30 ° to 40 ° according to different working conditions.
Claims (6)
1. The utility model provides a two thorax kilns platform sealing device of unloading, is provided with resistant firebrick including the kiln shell inboard, it reaches to be able to bear or endure below the firebrick the outside of kiln shell is the concrete of L type, concrete horizontal position with be equipped with steel foundatin backing plate between resistant firebrick, steel foundatin backing plate with be equipped with the cement basis between the concrete, the inboard below steel foundatin backing plate is equipped with the toper hopper, toper hopper bottom outer lane is equipped with the platform of unloading, toper hopper bottom below is equipped with out grey flat board, its characterized in that: the concrete bottom in the platform edge round of unloading is equipped with a steel ring, the steel ring with be equipped with ripple spring between the platform of unloading, concrete horizontal position upper surface the radial anchor assembly that evenly is provided with in steel basis backing plate top outside.
2. The double-hearth kiln discharge platform sealing device according to claim 1, characterized in that: the diameter of the inner ring of the steel circular ring is not larger than the diameter of the outer circular arc of the unloading platform, and the diameter of the outer ring of the steel circular ring is not smaller than the diameter of the outer circular arc of the unloading platform.
3. The double-hearth kiln discharge platform sealing device according to claim 2, characterized in that: the steel ring is arranged in the bottom surface of the concrete.
4. The double-hearth kiln discharge platform sealing device according to claim 2, characterized in that: the steel ring is fixed on the surface of the bottom of the concrete through a plurality of groups of screw nuts.
5. The double-hearth kiln discharge platform sealing device according to claim 4, characterized in that: the radial angle difference of the two adjacent screw nuts in the center of the steel circular ring is 20-40 degrees.
6. The double-hearth kiln discharge platform sealing device according to claim 4 or 5, wherein: the screw nut is arranged on the outer side of the corrugated spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221436440.8U CN217560363U (en) | 2022-06-10 | 2022-06-10 | Double-chamber kiln discharging platform sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221436440.8U CN217560363U (en) | 2022-06-10 | 2022-06-10 | Double-chamber kiln discharging platform sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217560363U true CN217560363U (en) | 2022-10-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221436440.8U Active CN217560363U (en) | 2022-06-10 | 2022-06-10 | Double-chamber kiln discharging platform sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217560363U (en) |
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2022
- 2022-06-10 CN CN202221436440.8U patent/CN217560363U/en active Active
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