CN217275497U

CN217275497U - Rotary kiln sealing structure for preventing material leakage

Info

Publication number: CN217275497U
Application number: CN202123214403.0U
Authority: CN
Inventors: 胡忠富; 欧文龙; 苏永黄; 黄剑峰; 李政
Original assignee: Foshan Tianlu Intelligent Equipment Technology Co Ltd
Current assignee: Foshan Tianlu Intelligent Equipment Technology Co Ltd
Priority date: 2021-12-17
Filing date: 2021-12-17
Publication date: 2022-08-23
Anticipated expiration: 2031-12-17

Abstract

The utility model discloses a prevent rotary kiln seal structure of material leakage, including boiler tube and seal box, the feed end or the discharge end of boiler tube are equipped with the flange, the flange includes that terminal surface and terminal surface extend the first radial circle that forms to boiler tube length direction, be equipped with first sealing member on the terminal surface, first sealing member sets up between seal box and terminal surface, the seal box extends the radial circle of formation second to the length direction of boiler tube, be equipped with the second sealing member on the radial circle of second, the second sealing member sets up between the radial circle of second and first radial circle, this seal structure has carried out horizontal and fore-and-aft double sealing to the kiln, the effect of isolated air has been reached, stop the leakage of material, reduce the escape of protective atmosphere.

Description

Rotary kiln sealing structure for preventing material leakage

Technical Field

The utility model relates to a rotary kiln technical field, concretely relates to prevent rotary kiln seal structure of material leakage.

Background

In the lithium battery industry, most continuous rotary kilns require sealing, particularly at the feed and discharge ports. Sealing the rotary kiln, on one hand, isolating air, preventing material leakage and ensuring that the material is fully sintered in a sealed furnace tube; on the other hand, the escape of the protective gas is prevented, and the protective gas is prevented from entering the workshop environment to cause potential safety hazards. At present, most of the existing sealing structures adopt flanges to directly fix a feed inlet or a discharge outlet of a rotary kiln, and the sealing effect of the structure is poor, so that the high sealing requirement of the rotary kiln is difficult to achieve.

SUMMERY OF THE UTILITY MODEL

Defect to above-mentioned prior art exists, the utility model provides a prevent rotary kiln seal structure of material leakage through horizontal and radial double seal, reaches isolated air's effect, stops the leakage of material.

The utility model provides a technical scheme that its technical problem adopted is:

a rotary kiln sealing structure for preventing material leakage comprises:

the furnace tube is characterized in that a flange is arranged at the feed end or the discharge end of the furnace tube, the flange comprises an end face and a first radial ring formed by extending the end face towards the length direction of the furnace tube, and a first sealing element is arranged on the end face;

the feeding end or the discharging end of the furnace tube extends into the sealing box, the first sealing element is arranged between the sealing box and the end face, the sealing box extends towards the length direction of the furnace tube to form a second radial ring, the first radial ring is sleeved into the second radial ring, a second sealing element is arranged on the second radial ring, and the second sealing element is arranged between the second radial ring and the first radial ring.

Furthermore, the first sealing element is tightly attached to the sealing box, and the first sealing element is a packing.

Furthermore, a bulge part protruding out of the outer surface of the seal box is arranged on the seal box, and the first sealing element is tightly attached to the bulge part.

Furthermore, the second sealing element is tightly attached to the first radial ring, the second sealing element is a double-layer sealing ring, and the two sealing rings are fixed on the second radial ring through bolts.

Further, the first radial ring and the second radial ring extend away from the seal box.

The beneficial effects of the utility model are that:

the utility model discloses set up the first radial circle on the boiler tube, set up the second radial circle on the seal box, through fixing the first sealing member on the first radial circle, the first sealing member carries out end face seal with boiler tube and seal box, realizes the transverse seal of discharge end; a second sealing element is fixed on the second radial ring, and the furnace tube and the sealing box are radially sealed to realize longitudinal sealing of the discharge end; the utility model discloses carried out horizontal and fore-and-aft dual seal to the kiln, reached isolated air's effect, stopped the leakage of material, reduced protective atmosphere's escape.

Drawings

FIG. 1 is a schematic view of the discharge direction of the present invention;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is an enlarged view of area B of FIG. 1;

FIG. 4 is a cross-sectional view of the furnace tube of the present invention;

FIG. 5 is a cross-sectional view of the middle sealing box of the present invention;

fig. 6 is a schematic view of the material leakage direction of the present invention.

In the figure: 1. a furnace tube; 2. an end face; 3. a first radial ring; 4. a first seal member; 5. sealing the box; 6. a second radial ring; 7. a second seal member; 701. a seal ring; 8. a bolt; 9. a boss portion; 10. and (4) a discharge port.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly understood, the following description will be made with reference to the accompanying drawings and embodiments. The present invention may be embodied in many different forms and is not limited to the embodiments described herein.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

As shown in fig. 1-6, the utility model provides a prevent rotary kiln seal structure of material leakage, including boiler tube 1 and seal box 5, boiler tube 1 is used for the splendid attire to treat the sintered material, and the material gets into boiler tube 1 from the feed end, and sintering and operation pass through in boiler tube 1, are exported from the discharge end at last.

A flange is arranged at the feed end or the discharge end of the furnace tube 1, the flange comprises an end surface 2 and a first radial ring 3 formed by extending the end surface 2 to the length direction of the furnace tube 1, and a first sealing element 4 is arranged on the end surface 2; the feed end or the discharge end of furnace tube 1 stretches into seal box 5, and first sealing member 4 sets up between seal box 5 and terminal surface 2, and seal box 5 extends to the length direction of furnace tube 1 and forms the radial circle of second 6, and the radial circle of second 6 is emboliaed to first radial circle 3, is equipped with second sealing member 7 on the radial circle of second 6, and second sealing member 7 sets up between the radial circle of second 6 and first radial circle 3.

In this embodiment, taking the discharge end of the rotary kiln as an example, the discharge end of the furnace tube 1 extends into the seal box 5, the sintered material is conveyed into the seal box 5 and finally discharged from the discharge port 10 at the bottom end of the seal box 5, and the material conveying direction of the rotary kiln is shown as the arrow direction in fig. 1. When the material is discharged, since the gas pressure in the furnace tube 1 is higher than the outside gas pressure, the material in the furnace will flow toward the outside where the gas pressure is low, thereby causing the material leakage, and the leakage path is shown by the arrow direction in fig. 6.

The packing is preferably adopted by the first sealing element 4 of the embodiment, the packing has a unique sealing structure, and can be used in high-temperature or high-pressure environments and the like, and the working principle is as follows: the sealing surface is very uneven under the microscopic condition and can only be partially attached to the packing, a tiny gap exists between the packing and the sealing surface, the packing is like a labyrinth, and materials are intercepted for many times in the labyrinth, so that the sealing effect is achieved. First sealing member 4 is fixed on terminal surface 2 and hugs closely seal box 5, and first sealing member 4 sets up between seal box 5 and terminal surface 2, carries out terminal surface 2 with boiler tube 1 and seal box 5 and seals, as the horizontal seal of discharge end.

In order to achieve a better sealing function of the packing, the seal box 5 is provided with a boss 9 protruding from the outer surface of the seal box 5, and when the furnace tube 1 is rotated, the first seal 4 is in close contact with the boss 9 and is rotated on the boss 9.

The second sealing element 7 of the present embodiment is preferably a double-layer sealing ring 701, the two sealing rings 701 are fixed on the second radial ring 6 by bolts 8, the bolts 8 are used to fix the second sealing element 7 and the seal box 5 into a whole, that is, the second sealing element 7 is fixed on the second radial ring 6 and closely attached to the first radial ring 3, the second sealing element 7 is arranged between the second radial ring 6 and the first radial ring 3, and the furnace tube 1 and the seal box 5 are radially sealed to serve as the longitudinal seal of the discharge end.

Furnace tube 1, terminal surface 2, first radial circle 3 and first sealing member 4 are fixed as an organic whole, and seal box 5, the radial circle of second 6 and second sealing member 7 are fixed as an organic whole, and during the installation, furnace tube 1 embolias seal box 5, and terminal surface 2 and the radial circle of first 3 embolias the radial circle of second 6, specifically, first radial circle 3 and the radial circle of second 6 extend towards the direction of keeping away from seal box 5.

The working principle is as follows: under the environment of atmospheric pressure difference, if the material leaks, can be earlier through first sealing member 4, first sealing member 4 is fixed on boiler tube 1's terminal surface 2, closely laminates with seal box 5, plays 2 sealed effects of terminal surface, and through horizontal sealed back, very little material can pass through 7 departments of second sealing member, and second sealing member 7 is fixed as an organic whole with seal box 5, closely laminates with first radial ring 3, plays the radial seal effect.

The utility model discloses carry out horizontal and fore-and-aft dual sealing to the kiln, reach isolated air's effect, stop the leakage of material, reduce protective atmosphere's escape.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims

1. A rotary kiln sealing structure for preventing material leakage is characterized by comprising:

the flange comprises an end face and a first radial ring formed by extending the end face towards the length direction of the furnace tube, and a first sealing element is arranged on the end face;

2. The rotary kiln seal structure for preventing material leakage according to claim 1, wherein the first seal member is tightly attached to the seal box, and the first seal member is a packing.

3. The rotary kiln sealing structure for preventing material leakage according to claim 1, wherein a protrusion protruding from an outer surface of the sealing box is provided on the sealing box, and the first sealing member is tightly attached to the protrusion.

4. The rotary kiln sealing structure for preventing material leakage according to claim 1, wherein the second sealing element is tightly attached to the first radial ring, the second sealing element is a double-layer sealing ring, and the two sealing rings are fixed on the second radial ring through bolts.

5. The rotary kiln seal structure for preventing leakage of material as claimed in claim 1, wherein said first radial ring and said second radial ring extend away from said seal box.