CN218973194U

CN218973194U - Multifunctional rotary kiln sealing device

Info

Publication number: CN218973194U
Application number: CN202222989037.4U
Authority: CN
Inventors: 李冬梅; 胡忠富; 苏永黄; 傅祥桂; 李政
Original assignee: Foshan Tianlu Intelligent Equipment Technology Co Ltd
Current assignee: Foshan Tianlu Intelligent Equipment Technology Co Ltd
Priority date: 2022-11-09
Filing date: 2022-11-09
Publication date: 2023-05-05
Anticipated expiration: 2032-11-09

Abstract

The utility model discloses a multifunctional rotary kiln sealing device which comprises a sealing bin, a furnace tube and a heat insulation sealing head, wherein the sealing bin is fixedly connected with one end of the furnace tube; the sealing frame is sleeved on the heat insulating sealing head and fixedly connected with the sealing bin; the inner cavity of the sealing frame is divided into a heat insulation cavity and a water cooling cavity from inside to outside, the heat insulation cavity and the water cooling cavity are mutually independent, the heat insulation cavity can reduce heat transfer, and the gas fluidity near the packing sealing ring can be reduced; the sealing device integrates the functions of heat insulation, cooling, sealing and lubrication, so that the sealing device is compact in structure, convenient to maintain and good in sealing effect.

Description

Multifunctional rotary kiln sealing device

Technical Field

The utility model relates to the field of rotary kilns, in particular to a multifunctional rotary kiln sealing device.

Background

The lithium battery cathode material sintering rotary kiln is used for sintering materials at high temperature during working, and simultaneously releasing combustible harmful gases, and the rotary kiln is required to be driven into protective atmosphere to ensure the sealing of a furnace tube of the rotary kiln. The rotary kiln is sealed by sealing structures at two ends of the furnace tube, the furnace tube continuously rotates during operation, and the furnace tube thermally expands and stretches when the temperature rises, so that the requirement on the sealing structure of the rotary kiln is higher; the common sealing structure is labyrinth seal and sealing ring seal, the labyrinth seal is greatly influenced by radial and axial runout of the furnace tube, and faults and air leakage are easy to occur; the sealing performance of the sealing ring is reduced due to the fact that the sealing of the sealing ring is affected by temperature and the service life is short; when the pressure in the furnace is too high, gas leakage can be caused to pollute the environment, and meanwhile, dust of materials in the furnace can be blown out, and materials are lost.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the embodiment of the utility model provides a multifunctional rotary kiln sealing device which comprises a sealing bin, a furnace tube and a heat insulation sealing head, wherein the sealing bin is fixedly connected with one end of the furnace tube, and the heat insulation sealing head is sleeved on the furnace tube; the sealing frame is sleeved on the heat insulation sealing head and fixedly connected with the sealing bin; the inner cavity of the sealing frame is divided into a heat insulation cavity and a water cooling cavity from inside to outside, the heat insulation cavity is mutually independent with the water cooling cavity, at least two packing sealing rings are arranged on the sealing frame, the two packing sealing rings are pressed towards the heat insulation sealing heads, a fixing frame is fixedly connected with the end part of the sealing frame, and the fixing frame is used for compressing and fixing the packing sealing rings.

According to some embodiments of the utility model, two water pipe joints are arranged on the sealing frame, the two water pipe joints are communicated with the water cooling cavity, and the two water pipe joints are respectively connected with a cooling water driving pipe and a cooling water discharging pipe.

According to some embodiments of the utility model, the outer wall of the water cooling cavity is provided with cooling fins in an arrangement manner, and the cooling fins are located in a gap between the heat insulation seal head and the sealing frame.

According to some embodiments of the utility model, the sealing frame is provided with at least two mounting grooves, and the two mounting grooves are used for mounting the packing sealing ring.

According to some embodiments of the utility model, the sealing frame is provided with an injection pipe, the injection pipe extends into a cavity between the two packing sealing rings, and the injection pipe is used for injecting lubricating oil.

According to some embodiments of the utility model, a packing spacer ring is installed between two packing sealing rings.

According to some embodiments of the utility model, a sealing ring is installed on the outer side of the fixing frame, a fixing ring is tightly pressed on the sealing ring, and the fixing ring is fixedly connected with the sealing frame.

The utility model has at least the following beneficial effects:

1. according to the high-temperature working environment of the lithium battery anode material sintering rotary kiln, a heat insulation cavity and a water cooling cavity are added, so that the working temperature of the sealing frame can be reduced. Meanwhile, the heat insulation cavity and the water cooling cavity are designed on the sealing frame, so that the occupied space is small;

2. lubricating oil is injected into the working surface of the packing sealing ring through the injection pipe, so that abrasion of the packing sealing ring is reduced;

3. the rubber sealing ring with stronger sealing performance is arranged on the outer side of the sealing frame, so that the structure is compact and the maintenance is convenient;

4. integrates the functions of heat insulation, cooling, sealing and lubrication, so that the sealing device has compact structure.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an overall schematic of an embodiment of the present utility model;

FIG. 2 is a schematic overall cross-sectional view of an embodiment of the present utility model;

FIG. 3 is an enlarged schematic view of FIG. 2A;

fig. 4 is an enlarged schematic view of B in fig. 2.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

Referring to fig. 1 to 3, a multifunctional rotary kiln sealing device comprises a sealing bin 101, a furnace tube 102 and a heat insulation sealing head 103, wherein the sealing bin 101 is fixedly connected with one end of the furnace tube 102, and the heat insulation sealing head 103 is sleeved on the furnace tube 102; the heat insulation seal head 103 is sleeved with a seal frame 100, and the seal frame 100 is fixedly connected with the seal bin 101; the inner cavity of the sealing frame 100 is divided into a heat insulation cavity 110 and a water cooling cavity 120 from inside to outside, the heat insulation cavity 110 and the water cooling cavity 120 are mutually independent, the heat insulation cavity 110 can reduce heat transfer, and gas fluidity near the packing seal ring 200 can be reduced.

Cooling water is injected into the water cooling cavity 120, heat is taken away through the cooling water, the sealing frame 100 is cooled, the temperature is reduced, abrasion of the packing seal ring 200 during working is reduced, and the sealing effect is improved.

At least two packing sealing rings 200 are arranged on the sealing frame 100, the two packing sealing rings 200 are pressed towards the heat insulation sealing head 103, the packing sealing rings 200 are used for sealing in rotary contact with the heat insulation sealing head 103, heat can be effectively isolated and pressure can be effectively reduced, a fixing frame 300 is fixedly connected to the end part of the sealing frame 100, and the fixing frame 300 is used for compressing and fixing the packing sealing rings 200.

Referring to fig. 3 and 4, two water pipe joints 400 are provided on the sealing rack 100, the two water pipe joints 400 are communicated with the water cooling cavity 120, and the two water pipe joints 400 are respectively connected with a cooling water inlet pipe and a cooling water outlet pipe, so that cooling water forms a circulation in the water cooling cavity 120 to cool the sealing rack 100.

The cooling fins 130 are arranged on the outer wall of the water cooling cavity 120, the cooling fins 130 are located in a gap between the heat insulation seal head 103 and the sealing frame 100, gas close to the sealing frame 100 can be cooled, and meanwhile heat absorbed by the cooling fins 130 is transferred to the water cooling cavity 120 and absorbed by cooling water.

At least two mounting grooves are provided on the seal frame 100 for the convenience of mounting the packing ring 200.

The injection pipe 500 is arranged on the sealing frame 100, the check valve is arranged on the injection pipe 500, the injection pipe 500 stretches into the cavity between the two packing sealing rings 200, the injection pipe 500 is used for injecting lubricating oil, the injected lubricating oil can lubricate the packing sealing rings 200, so that abrasion of the packing sealing rings 200 is reduced, and tightness of the packing sealing rings 200 can be guaranteed.

Referring to fig. 4, a packing spacer 600 is installed between two packing rings 200.

Referring to fig. 3 and 4, a seal ring 700 is mounted on the outer side of the fixing frame 300, and the seal ring 700 is in rotary contact with the heat insulation seal head 103 to seal, and the sealing effect of the seal ring 700 can be improved after the pressure reduction and the temperature reduction of the packing seal ring 200.

The sealing ring 700 is tightly pressed with a fixing ring 800, and the fixing ring 800 is fixedly connected with the sealing frame 100.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. The multifunctional rotary kiln sealing device comprises a sealing bin (101), a furnace tube (102) and a heat insulation sealing head (103), wherein the sealing bin (101) is fixedly connected with one end of the furnace tube (102), and the heat insulation sealing head (103) is sleeved on the furnace tube (102); the heat insulation sealing device is characterized in that a sealing frame (100) is sleeved on the heat insulation sealing head (103), and the sealing frame (100) is fixedly connected with the sealing bin (101);

the inner cavity of the sealing frame (100) is divided into a heat insulation cavity (110) and a water cooling cavity (120) from inside to outside, the heat insulation cavity (110) and the water cooling cavity (120) are mutually independent, at least two packing sealing rings (200) are arranged on the sealing frame (100), the two packing sealing rings (200) are pressed towards the heat insulation sealing heads (103), a fixing frame (300) is fixedly connected with the end part of the sealing frame (100), and the fixing frame (300) is used for compressing and fixing the packing sealing rings (200).

2. The multifunctional rotary kiln sealing device according to claim 1, wherein two water pipe connectors (400) are arranged on the sealing frame (100), the two water pipe connectors (400) are communicated with the water cooling cavity (120), and the two water pipe connectors (400) are respectively connected with a cooling water driving pipe and a cooling water discharging pipe.

3. The multifunctional rotary kiln sealing device according to claim 1 or 2, characterized in that heat radiating fins (130) are arranged on the outer wall of the water cooling cavity (120), and the heat radiating fins (130) are located in a gap between the heat insulation sealing head (103) and the sealing frame (100).

4. A multifunctional rotary kiln sealing device according to claim 1, characterized in that the sealing frame (100) is provided with at least two mounting grooves for mounting the packing seal (200).

5. A multi-functional rotary kiln sealing device according to claim 1 or 4, characterized in that the sealing frame (100) is provided with an injection pipe (500), the injection pipe (500) is provided with a one-way valve, the injection pipe (500) extends into a cavity between two packing seals (200), and the injection pipe (500) is used for injecting lubricating oil.

6. A multifunctional rotary kiln sealing device according to claim 1, characterized in that a packing grommet (600) is provided between two packing sealing rings (200).

7. The multifunctional rotary kiln sealing device according to claim 1, wherein a sealing ring (700) is installed on the outer side of the fixing frame (300), a fixing ring (800) is tightly pressed on the sealing ring (700), and the fixing ring (800) is fixedly connected with the sealing frame (100).