CN212673819U - Rotary kiln sealing device and anode material rotary kiln with same - Google Patents
Rotary kiln sealing device and anode material rotary kiln with same Download PDFInfo
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- CN212673819U CN212673819U CN202020859823.0U CN202020859823U CN212673819U CN 212673819 U CN212673819 U CN 212673819U CN 202020859823 U CN202020859823 U CN 202020859823U CN 212673819 U CN212673819 U CN 212673819U
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Abstract
The utility model discloses a rotary kiln sealing device, which comprises a furnace tube and a fixed sealing component, wherein the fixed sealing component comprises a fixed sealing ring positioned on the furnace tube; the sealing frame is movable, a movable sealing assembly is arranged on the sealing frame, and the movable sealing assembly comprises a movable sealing ring and a movable sealing pipe; when the sealing frame is in butt joint with the furnace tube, the movable sealing tube of the sealing frame surrounds the outer side of the furnace tube, and the movable sealing tube is provided with an exhaust hole; through the cooperation of the fixed sealing component and the movable sealing component, the problem of powder leakage at the sealing position of the rotary kiln is effectively solved. The utility model also discloses an anodal material rotary kiln of having it.
Description
Technical Field
The utility model relates to a rotary kiln technical field, especially a rotary kiln sealing device and have its positive pole material rotary kiln.
Background
At present, the brick kiln is widely applied to industries such as ceramics, cement, metallurgy and the like, and has the characteristics of low sintering cost, simple maintenance, good sintering uniformity and the like. Common anode materials are sintered by using a roller kiln, but daily maintenance of the roller kiln needs to replace a large number of kiln accessories such as rods, heating rods, thermocouples and the like, and the thickness of the material layer in the saggar, which is an easily-consumed product, is high, so that the heating is uneven, and the phenomena of high sintering cost and uneven sintering are caused.
Specifically, for the production of the lithium battery positive electrode material, a few companies use rotary kilns to perform secondary sintering and tertiary sintering of the lithium battery positive electrode material. However, in the daily production process, if the use experience of the rotary kiln in other industries is carried out, the powder leakage at the sealing position of the rotary kiln is serious because the anode material is nano-grade powder. Particularly, the high-nickel ternary cathode material needs to be sintered in an oxygen atmosphere, and further causes the defects of low oxygen concentration or high oxygen consumption of the rotary kiln.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a rotary kiln sealing device and have its positive pole material rotary kiln.
The utility model provides a technical scheme that its technical problem adopted is: the rotary kiln sealing device comprises a furnace tube and a fixed sealing assembly, wherein the fixed sealing assembly comprises a fixed sealing ring positioned on the furnace tube; the sealing frame is movable, a movable sealing assembly is arranged on the sealing frame, and the movable sealing assembly comprises a movable sealing ring and a movable sealing pipe; when the sealing frame is in butt joint with the furnace tube, the movable sealing tube of the sealing frame surrounds the outer side of the furnace tube, and the movable sealing tube is provided with an exhaust hole.
According to the utility model provides a rotary kiln sealing device through fixed seal subassembly and the cooperation of activity seal subassembly, effectively solves the rotary kiln seal department and leaks the powder problem.
As some preferred embodiments of the present invention, the movable sealing component of each sealing frame includes a movable sealing component a and a movable sealing component B.
As some preferred embodiments of the utility model, the activity seal assembly is connected with the flowmeter, is convenient for master the air intake flow, and then the pressure in the control seal intracavity.
As some preferred embodiments of the utility model, the activity seal assembly is connected with the manometer, and the sealed intracavity pressure size through the manometer feedback, and then adjusts the flowmeter size as required.
As some preferred embodiments of the present invention, the lower side of the sealing frame is provided with a guide wheel and a guide rail, which facilitates the movement of the sealing frame.
As some preferred embodiments of the present invention, the fixed sealing assembly further includes an L-shaped plate, the furnace tube is connected to the fixed sealing ring through the L-shaped plate, so that the fixed sealing assembly is installed.
As some preferred embodiments of the utility model, the movable sealing component comprises a U-shaped plate, the movable sealing ring and the movable sealing pipe are positioned in the U-shaped plate, so that the movable sealing component is convenient to install.
The rotary kiln for the anode material comprises the rotary kiln sealing device.
According to the utility model provides an anode material rotary kiln through adopting fixed seal assembly and movable seal assembly cooperation seal structure, effectively solves the sealed department leakage powder problem of rotary kiln when anode material sintering.
As some preferred embodiments of the present invention, the furnace tube comprises a heating furnace tube and a cooling furnace tube.
As some preferred embodiments of the utility model, still be provided with feed arrangement, blast pipe on the seal carrier.
The utility model has the advantages that: through the improvement of the sealing structure formed by matching the fixed sealing assembly and the movable sealing assembly, oxygen is introduced into the sealing pipeline in a matching mode to enable positive pressure in the sealing cavity, gas in the sealing cavity acts from the sealing cavity to the inside of the rotary kiln, the material in the rotary kiln is prevented from entering the sealing cavity, a gas sealing effect is achieved, and the problem of powder leakage at the sealing position of the rotary kiln is effectively solved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the present invention during the movement of the sealing frame;
fig. 3 is a partial enlarged view of the present invention at the location of the fixed seal assembly and the movable seal assembly.
Reference numerals:
a furnace tube 100, a heating furnace tube 110, and a cooling furnace tube 120;
a fixed sealing component 200, a furnace tube 100, a fixed sealing ring 210 and an L-shaped plate 220;
the device comprises a movable sealing assembly 400, a movable sealing ring 410, a movable sealing pipe 420, a flow meter 430, a pressure gauge 440, a U-shaped plate 450, a movable sealing assembly A and a movable sealing assembly B;
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. Rather, the invention can be practiced without these specific details, i.e., those skilled in the art can more effectively describe the nature of their work to others skilled in the art using the description and illustrations herein.
It should be noted that the relative technical personnel, who simply do not need inventive adjustment in direction and position, should not be understood as the technology outside the scope of this application. It should be understood that the specific embodiments described herein are merely illustrative of the present application and do not limit the scope of the actual protection.
Well-known manufacturing methods, control procedures, component dimensions, material compositions, pipe arrangements, etc., have not been described in detail since they are readily understood by those of ordinary skill in the art, in order to avoid obscuring the present invention. Technical solutions between various embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory, contradictory or impossible to realize, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention, referring to fig. 1, an embodiment of the present invention provides a rotary kiln sealing device, including a furnace tube 100. The shape, working principle and other specific techniques of the furnace tube 100 can refer to the existing rotary kiln.
The stationary seal assembly 200, the stationary seal assembly 200 includes a stationary seal ring 210 disposed on the furnace tube 100. Namely, the fixed sealing ring 210 is fixed on the furnace tube 100 and does not move during operation.
A sealing frame 300, wherein the sealing frame 300 is movable, the sealing frame 300 is provided with a movable sealing assembly 400, i.e., when the sealing frame 300 is moved, the movable sealing assembly 400 moves together with the sealing frame 300. The moving seal assembly 400 is cooperatively sealed with the stationary seal assembly 200. The movable seal assembly 400 includes a movable seal ring 410 and a movable seal tube 420. The sealing frame 300 can be moved to facilitate the maintenance of the rotary kiln furnace end, and the sealing rings such as the fixed sealing ring 210, the movable sealing ring 410 and the like and other components can be replaced.
Referring to fig. 1 and 2, when the sealing frame 300 is abutted to the furnace tube 100, the movable sealing tube 420 of the sealing frame 300 surrounds the outside of the furnace tube 100, a sealing cavity is formed between the furnace tube 100 and the fixed sealing ring 210 and the movable sealing ring 410, and the movable sealing tube is also located in the sealing cavity. The movable sealing tube 420 is provided with an exhaust hole. The movable sealing tube 420 is externally connected with an air inlet device. The air inlet device is used for introducing air into the movable sealing pipe 420 for pressurization, the pressure in the sealing cavity is controlled through the air inlet flow, the air in the movable sealing pipe 420 enters the sealing cavity through the air outlet hole, and the pressure in the sealing cavity is controlled through controlling the air inlet flow, so that the effect of sealing the rotary kiln is achieved.
The sealing gas flows to the inside of the rotary kiln to achieve the sealing effect of the rotary kiln. The specific position and type of the air inlet device or the connection manner between the air inlet device and the movable sealing pipe 420 may be determined according to the rotary kiln, and are not limited and listed herein.
Reference will now be made in detail to some embodiments, wherein "an embodiment" is referred to herein as a particular feature, structure, or characteristic that may be included in at least one implementation of the present application. The appearances of the phrase "in an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Furthermore, the details representative of one or more embodiments are not necessarily indicative of any particular order, nor are they intended to be limiting.
Example 1 referring to fig. 2, a flow meter 430 is attached to the movable seal assembly 400, and the pressure in the seal chamber is controlled by the flow meter 430 to perform hermetic sealing.
The movable sealing assembly 400 is connected with a pressure gauge 440, and the size of the flowmeter is adjusted through the pressure of a sealing cavity fed back by the pressure gauge 440.
In embodiment 2, a movable seal assembly 400 is disposed on the seal holder 300, and a seal cavity is formed between the furnace tube 100 and the stationary seal ring 210 and the movable seal ring 410. The pressure of the sealing cavity is precisely controlled, so that the oxygen consumption of the hermetic seal is saved, and the hermetic seal is monitored to prevent the failure of the hermetic seal.
Example 3, the movable seal assembly 400 of each seal carrier 300 includes a movable seal assembly a and a movable seal assembly B. The three sealing ring structures (the fixed sealing ring 210, the movable sealing ring 410 of the movable sealing component A and the movable sealing ring 410 of the movable sealing component B) and the furnace tube 100 form two sealing cavities. Wherein, a first sealing cavity is arranged between the fixed sealing ring 210 and the movable sealing ring 410 of the movable sealing component A, and a second sealing cavity is arranged between the movable sealing ring 410 of the movable sealing component A and the movable sealing ring 410 of the movable sealing component B. The pressure in the two sealing cavities is controlled by controlling the flow, and two-way air sealing is performed. Powder leakage at the end part of the rotary kiln tube can be effectively avoided through two air seals.
The pressure fed back by the pressure gauges on the first and second sealed cavities is P1 and P2, the flow fed back by the flow meter is V1 and V2, and the pressure inside the rotary kiln is P3. The oxygen flow V1 and V2 of the flow meter are controlled and adjusted to achieve the effect of controlling the pressure of the sealing cavity, so that PI is more than P2 and more than P3. The pressure of the first sealing cavity and the pressure of the second sealing cavity are precisely controlled, so that the oxygen consumption of the hermetic seal is saved, and the hermetic seal is monitored to prevent the hermetic seal from losing efficacy.
With the long-term use of the rotary kiln, because the fixed sealing component 200 rubs for a long time, the sealing gap between the fixed sealing component 200 and the U-shaped baffle becomes larger, and oxygen in the first sealing cavity is easily discharged out of the rotary kiln. When the pressure P1 of the movable sealing assembly A is obviously reduced or the flowmeter V1 on the first sealing cavity is obviously raised, the fixing mechanism on the support can be detached, and then the support is moved, so that the U-shaped plate of the second movable sealing assembly B compresses the sealing ring of the fixed sealing assembly 200, the gap between the sealing ring of the fixed sealing assembly 200 and the U-shaped plate is reduced, and the sealing effect of the fixed sealing assembly 200 on the sealing cavity is enhanced. And the fixing mechanism is used for fixing the bracket to achieve the effect of fixing the sealing system. Thereby achieving the effects of saving the oxygen consumption of air sealing and strengthening the air sealing effect.
In embodiment 4, the lower side of the sealing frame 300 is provided with a guide wheel 310 and a guide rail 320. The guide wheels 310 allow the seal carrier 300 to move easily, and the guide rails 320 guide the moving direction of the seal carrier 300 to ensure the accurate butt joint of the seal carrier 300. The shape and position of the guide wheel 310 and the guide rail 320 are not limited.
In embodiment 5, the fixing seal assembly 200 further includes an L-shaped plate 220, and the furnace tube 100 is connected to the fixing seal ring 210 through the L-shaped plate 220. One side of the L-shaped plate 220 is connected to the furnace tube 100, and the other side is connected to the fixing seal ring 210, so as to facilitate installation of the fixing seal ring 210.
The movable sealing assembly 400 comprises a U-shaped plate 450, the movable sealing ring 410 and the movable sealing pipe 420 are positioned in the U-shaped plate 450, and the outer side of the U-shaped plate 450 is connected with the sealing frame 300, so that the movable sealing assembly 400 can be conveniently installed.
Referring to fig. 1, an embodiment of the present invention provides a positive electrode material rotary kiln, including the above rotary kiln sealing device.
The furnace tube 100 includes a heating furnace tube 110 and a cooling furnace tube 120, and the shapes, working principles, and the like of the heating furnace tube 110 and the cooling furnace tube 120 can refer to the existing rotary kiln.
The sealing frame 300 is further provided with a feeding device 500 and an exhaust pipe 510. Taking the embodiments 3, 4 and 5 as examples, the feeding device 500, the exhaust pipe 510 and the movable sealing assembly 400 connected to the sealing frame 300 are driven to move forward by the guide wheel 310 on the guide rail 320, so that the U-shaped plates 450 of the movable sealing assembly a and the movable sealing assembly B and the fixed sealing ring 210 are pressed to perform a first sealing function, and the sealing function can effectively seal oxygen in the first and second sealing cavities, thereby effectively reducing oxygen consumption of the movable sealing assembly a and the movable sealing assembly B.
When the rotary kiln feeds too fast or stops rotating, materials can be accumulated at the front end of the furnace tube, and the accumulated materials can enter a rotary kiln sealing device to cause the rotary kiln sealing failure and accelerate the abrasion of a sealing structure of the rotary kiln. The sealing device at the front end of the heating section cooling section of the embodiment is provided with a discharge port, and accumulated products can be discharged from a discharge pipe through a control butterfly valve. When preventing that sealed front end material from piling up, the material gets into sealed chamber, damages the airtight.
According to the above principle, the present invention can also make appropriate changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention.
Claims (10)
1. The sealing device for the rotary kiln comprises a furnace tube (100), and is characterized by further comprising:
the fixed sealing assembly (200), the fixed sealing assembly (200) comprises a fixed sealing ring (210) positioned on the furnace tube (100);
the sealing frame (300), wherein the sealing frame (300) is movable, the sealing frame (300) is provided with a movable sealing assembly (400), and the movable sealing assembly (400) comprises a movable sealing ring (410) and a movable sealing pipe (420);
when the sealing frame (300) is in butt joint with the furnace tube (100), the movable sealing tube (420) of the sealing frame (300) surrounds the outer side of the furnace tube (100), and the movable sealing tube (420) is provided with an exhaust hole.
2. The rotary kiln sealing device as claimed in claim 1, wherein: the movable seal assembly (400) of each seal carrier (300) includes a movable seal assembly a and a movable seal assembly B.
3. The rotary kiln sealing device as claimed in claim 1, wherein: a flow meter (430) is connected to the moveable seal assembly (400).
4. The rotary kiln sealing device as claimed in claim 1, wherein: the movable sealing assembly (400) is connected with a pressure gauge (440).
5. The rotary kiln sealing device as claimed in claim 1, wherein: and a guide wheel (310) and a guide rail (320) are arranged on the lower side of the sealing frame (300).
6. The rotary kiln sealing device as claimed in claim 1, wherein: the fixed sealing assembly (200) further comprises an L-shaped plate (220), and the furnace tube (100) is connected with the fixed sealing ring (210) through the L-shaped plate (220).
7. The rotary kiln sealing device as claimed in claim 1, wherein: the movable sealing assembly (400) comprises a U-shaped plate (450), and the movable sealing ring (410) and the movable sealing pipe (420) are positioned in the U-shaped plate (450).
8. A rotary kiln for positive electrode material, characterized by comprising the rotary kiln sealing device according to any one of claims 1 to 7.
9. The positive electrode material rotary kiln as recited in claim 8, wherein: the furnace tube (100) comprises a heating furnace tube (110) and a cooling furnace tube (120).
10. The positive electrode material rotary kiln as recited in claim 8, wherein: the sealing frame (300) is also provided with a feeding device (500) and an exhaust pipe (510).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020859823.0U CN212673819U (en) | 2020-05-20 | 2020-05-20 | Rotary kiln sealing device and anode material rotary kiln with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020859823.0U CN212673819U (en) | 2020-05-20 | 2020-05-20 | Rotary kiln sealing device and anode material rotary kiln with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212673819U true CN212673819U (en) | 2021-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020859823.0U Active CN212673819U (en) | 2020-05-20 | 2020-05-20 | Rotary kiln sealing device and anode material rotary kiln with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212673819U (en) |
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2020
- 2020-05-20 CN CN202020859823.0U patent/CN212673819U/en active Active
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