CN209926837U - Double-layer sealing device - Google Patents
Double-layer sealing device Download PDFInfo
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- CN209926837U CN209926837U CN201920108067.5U CN201920108067U CN209926837U CN 209926837 U CN209926837 U CN 209926837U CN 201920108067 U CN201920108067 U CN 201920108067U CN 209926837 U CN209926837 U CN 209926837U
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Abstract
The utility model relates to the technical field of cement building materials and metallurgical equipment, in particular to a double-layer sealing device; the kiln head cover comprises a cold air sleeve, wherein a first sleeve and a second sleeve are arranged outside the cold air sleeve, the first sleeve is welded on a kiln head cover, the first sleeve is connected with the second sleeve through a bolt, a reverse sealing sheet is arranged between the first sleeve and the cold air sleeve, the reverse sealing sheet is fixed on the first sleeve, a forward sealing sheet is arranged between the second sleeve and the cold air sleeve, the forward sealing sheet is fixed on the second sleeve, the forward sealing sheet and the reverse sealing sheet are flexible metal sealing sheets, the bottoms of the first sleeve and the second sleeve are respectively provided with a first ash hopper and a second ash hopper, and a cold air inlet is formed in the second; the utility model can adapt to the movement and deformation of the cylinder body in all aspects; the positive and negative sealing steel sheet structure has certain flexibility so as to be tightly attached to the surface of the cold air sleeve to eliminate axial and radial movement and deformation; high temperature resistance, wear resistance and long service life; cold air is blown in from the sleeve II, so that the temperature is reduced, the abrasion is reduced, and the service life is prolonged.
Description
Technical Field
The utility model belongs to the technical field of cement building materials and metallurgical equipment technique and specifically relates to a double-deck sealing device.
Background
The kiln head sealing device of the rotary kiln is one of the important components of the rotary kiln. The sealing performance of the sealing device has great influence on the normal operation of the rotary kiln. Because the rotary kiln is operated under negative pressure, if the sealing between the kiln head and the kiln head cover is poor, the normal proportion of the material quantity, the combustion quantity and the air quantity in the kiln can be damaged when external cold air enters the kiln, the secondary air quantity entering the kiln by a cooler is reduced, the secondary air temperature is reduced, the heat consumption is increased, and the calcination cost is increased. Meanwhile, the load of the exhaust fan can be increased and the power consumption can be increased due to the large amount of cold air entering. Under the conditions of abnormal production process and positive pressure of a kiln head, dust of the kiln head cover can be ejected out of the kiln head cover through the kiln head seal with poor seal, the site environment pollution at the first-gear belt is caused, meanwhile, the dust falls on the supporting wheels, the abnormal abrasion of the belt and the supporting wheels can be accelerated, and the service life of the belt and the supporting wheels is shortened.
Disclosure of Invention
The utility model aims at: the double-layer sealing device can adapt to movement and deformation of the cylinder in all aspects, and is high-temperature resistant, wear resistant and long in service life.
In order to solve the technical problem, the utility model discloses a technical scheme as follows:
the utility model provides a double-deck sealing device, includes the cold wind cover, cold wind cover is equipped with sleeve one and sleeve two outward, sleeve one welding is covered at the kiln hood, pass through bolted connection between sleeve one and the sleeve two, there is reverse gasket between sleeve one and the cold wind cover, reverse gasket is fixed on sleeve one, there is the forward gasket between sleeve two and the cold wind cover, the forward gasket is fixed on sleeve two, forward gasket and reverse gasket are flexible metal gasket, sleeve one is equipped with ash bucket one and ash bucket two respectively with the bottom of sleeve two, be equipped with the cold wind air intake on the sleeve two.
Furthermore, a first taper plate and a second taper plate are respectively arranged on the first sleeve and the second sleeve, the forward sealing piece is fixed on the second taper plate through a bolt, and the reverse sealing piece is fixed on the first taper plate through a bolt.
Further, the taper angle alpha of the first taper plate and the second taper plate is 30-45 degrees.
Further, sleeve one includes the annular plate, annular plate one end welding has first connecting plate, and the other end welding of annular plate covers at the kiln head, the welding of tapering board is on first connecting plate, the bottom of tapering board one flushes with the bottom of first connecting plate, first connecting plate passes through the bolt and is connected with sleeve two.
Further, sleeve two includes L shape ring plate, the welding of the one end of L shape ring plate has the second connecting plate, and the welding of the other end of L shape ring plate has tapering board two, the bottom of tapering board two flushes with the bottom of sleeve two, pass through bolted connection between second connecting plate and the sleeve one.
Further, the positive sealing piece and the negative sealing piece are positioned in the second sleeve.
Furthermore, the first ash hopper and the second ash hopper are conical, and the bottoms of the first ash hopper and the second ash hopper are connected with the collector through a discharge pipe.
Adopt the technical scheme of the utility model's beneficial effect is:
1. the double-layer sealing device in the utility model can adapt to the movement and deformation of the cylinder body; the positive and negative sealing steel sheet structure has certain flexibility so as to be tightly attached to the surface of the cold air sleeve to eliminate axial and radial movement and deformation.
2. The double-layer sealing device in the utility model has high temperature resistance, abrasion resistance and long service life; cold air is blown in from the sleeve II, so that the temperature is reduced, the abrasion is reduced, and the service life is prolonged.
3. The utility model provides a double-deck sealing device, the dust of collecting can flow back the cooler or concentrate the back unified processing, and it is more convenient to use.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is an overall assembly diagram of the double-layer sealing device of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
In the figure: the cooling air cooler comprises a cooling air sleeve fixing device 1, a cooling air blower 2, an air inlet 3, an ash hopper I4, an ash hopper II 5, a sleeve I6, a ring-shaped plate 6-1, a first connecting plate 6-2, a taper plate I6-3, a cooling air sleeve 7, a reverse sealing piece 8, a sleeve II 9, a taper plate L9-1, a second connecting plate 9-2, a taper plate II 9-3 and a forward sealing piece 10.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
Please refer to fig. 1-2. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper" and "lower" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes.
As shown in fig. 1, a double-deck sealing device, including cold wind cover 7, cold wind cover 7 is fixed on the kiln section of thick bamboo through cold wind cover 7 fixing device 1, be equipped with sleeve one 6 and sleeve two 9 outside cold wind cover 7, sleeve one 6 welding is on the kiln hood, pass through bolted connection between sleeve one 6 and the sleeve two 9, have reverse gasket 8 between sleeve one 6 and the cold wind cover 7, forward gasket 10 and reverse gasket 8 are flexible metal gasket, reverse gasket 8 is fixed on sleeve one 6, have forward gasket 10 between sleeve two 9 and the cold wind cover 7, forward gasket 10 is fixed on sleeve two 9, sleeve one 6 and sleeve two 9's bottom is equipped with ash bucket one 4 and ash bucket two 5 respectively, be equipped with cold wind air intake 3 on the sleeve two 9, cold wind intake 3 is connected with air-cooler 2 through the air-supply line, ash bucket one 4 and ash bucket two 5 are conical, ash bucket one 4 and ash bucket two 5's bottom is connected with the collector through arranging the material pipe.
The working principle is as follows: in a state of positive pressure at the kiln head, gas containing dust is ejected from the outer side of the cold air sleeve 7 along the axial direction of the kiln through a kiln head iron protector (not shown), firstly, the gas collides with the positive sealing sheet 10, most dust particles lose kinetic energy due to collision, and the dust particles are captured by the first dust collecting hopper 4 under the action of gravity and enter a grate cooler (not shown) or a collecting device (not shown). The rest small part of dust continues to move forward and is blown to the reverse sealing sheet 8, the dust loses forward power under the action of wind power in the cold air sleeve 7 and the blockage of the reverse sealing sheet 8, and the dust is collected in the ash hopper 5 under the action of gravity and enters a grate cooler (not shown) or a collecting device (not shown).
As a preferred embodiment, in this embodiment, the first sleeve 6 and the second sleeve 9 are respectively provided with a taper plate, the forward sealing piece 10 and the reverse sealing piece 8 are fixed on the taper plate by bolts, the forward sealing piece 10 and the reverse sealing piece 8 are located in the second sleeve 9, the taper plates are arranged on the first sleeve 6 and the second sleeve 9, then the forward sealing piece 10 and the reverse sealing piece 8 are fixed on the taper plate, after installation, a sealing angle can be formed between the forward sealing piece 10 and the reverse sealing piece 8 and the cold air jacket 7, so that the forward sealing piece 10 and the reverse sealing piece 8 are attached to the cold air jacket 7, thereby improving the sealing performance, preferably, the taper angle α of the taper plate is 30 ° -45 °, the taper angle α of the taper plate is designed within the range, after installation, the angle of the sealing angle formed between the forward sealing piece 10 and the reverse sealing piece 8 and the cold air jacket 7 is controlled within 30 ° -45 °, control the sealed angle between positive gasket 10 and the air-cooled jacket in this within range, be favorable to the gasket to change the inside fluid of kiln head and dust flow direction, improve sealed effect, avoid the gasket to be directly washed away by the inside dust air current of kiln head, improve the life of gasket. The sealing angle between the reverse sealing sheet 8 and the cold air jacket 7 is controlled within the range, so that the sealing effect and the service life of the sealing sheet can be guaranteed.
As a preferable mode, the sleeve I6 in the embodiment comprises an annular plate 6-1, one end of the annular plate 6-1 is welded with a first connecting plate 6-2, the other end of the annular plate 6-1 is welded on a kiln head cover, a taper plate I6-3 is welded on the first connecting plate 6-2, the bottom of the taper plate I6-3 is flush with the bottom of the first connecting plate 6-2, and the first connecting plate 6-2 is connected with the sleeve II 9 through bolts.
As a preferred embodiment, the sleeve II 9 in the embodiment comprises an L-shaped annular plate 9-1, a second connecting plate 9-2 is welded at one end of the L-shaped annular plate 9-1, a taper plate II 9-3 is welded at the other end of the L-shaped annular plate 9-1, the bottom of the taper plate II 9-3 is flush with the bottom of the sleeve II 9, and the second connecting plate 9-2 is connected with the sleeve I6 through a bolt.
As a preferred embodiment, the forward sealing piece 10 and the reverse sealing piece 8 in this embodiment are located in the second sleeve 9, the air inlet 3 is designed on the second sleeve 9, and the air inlet volume and the air pressure are slightly higher than the positive pressure of the kiln head through calculation, so that an airtight effect is achieved.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. A double layer seal, characterized by: including cold wind cover, cold wind cover is equipped with sleeve one and sleeve two outward, sleeve one welding is on the kiln hood, pass through bolted connection between sleeve one and the sleeve two, there is reverse gasket between sleeve one and the cold wind cover, reverse gasket fixes on sleeve one, there is the forward gasket between sleeve two and the cold wind cover, the forward gasket is fixed on sleeve two, forward gasket and reverse gasket are flexible metal gasket, sleeve one is equipped with ash bucket one and ash bucket two respectively with the bottom of sleeve two, be equipped with the cold wind air intake on the sleeve two.
2. A double layer seal as claimed in claim 1, wherein: the sleeve I and the sleeve II are respectively provided with a taper plate I and a taper plate II, the forward sealing piece is fixed on the taper plate II through a bolt, and the reverse sealing piece is fixed on the taper plate I through a bolt.
3. A double layer seal as claimed in claim 2, wherein: the taper angle alpha of the taper plate I and the taper plate II is 30-45 degrees.
4. A double layer seal as claimed in claim 2, wherein: the first sleeve comprises an annular plate, a first connecting plate is welded at one end of the annular plate, the other end of the annular plate is welded on the kiln head cover, the first taper plate is welded on the first connecting plate, the bottom of the first taper plate is flush with the bottom of the first connecting plate, and the first connecting plate is connected with the second sleeve through a bolt.
5. A double layer seal as claimed in claim 1, wherein: the sleeve II comprises an L-shaped annular plate, a second connecting plate is welded at one end of the L-shaped annular plate, a taper plate II is welded at the other end of the L-shaped annular plate, the bottom of the taper plate II is flush with the bottom of the sleeve II, and the second connecting plate is connected with the sleeve I through a bolt.
6. A double layer seal as claimed in claim 1, wherein: and the forward sealing piece and the reverse sealing piece are positioned in the second sleeve.
7. A double layer seal as claimed in claim 1, wherein: the first ash hopper and the second ash hopper are conical, and the bottoms of the first ash hopper and the second ash hopper are connected with a collector through a discharge pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108067.5U CN209926837U (en) | 2019-01-23 | 2019-01-23 | Double-layer sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108067.5U CN209926837U (en) | 2019-01-23 | 2019-01-23 | Double-layer sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209926837U true CN209926837U (en) | 2020-01-10 |
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ID=69067099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920108067.5U Active CN209926837U (en) | 2019-01-23 | 2019-01-23 | Double-layer sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209926837U (en) |
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2019
- 2019-01-23 CN CN201920108067.5U patent/CN209926837U/en active Active
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