A rotary kiln head and tail sealing device

Abstract

The utility model discloses a rotary kiln head kiln tail sealing device belongs to rotary kiln sealing technical field, including rotary kiln main part, the both ends bushing of rotary kiln main part are connected with the sealing cover, and the surface symmetry of rotary kiln main part is fixedly connected with the fixed seat, and one side fixedly connected with rubber sealing pad has of sealing cover, and one side fixedly connected with sealing assembly has in sealing cover inside, and the both sides of sealing cover are provided with auxiliary assembly, the utility model sets up sealing assembly, realized the effect of good sealing effect to rotary kiln head kiln tail, through inner ladder type rubber pad and outer ladder type rubber pad, realize multiple extrusion sealing, make the sealing effect is good, and inner ladder type rubber pad and outer ladder type rubber pad have the effect of high temperature resistance, pressure resistance and corrosion resistance, the utility model discloses through auxiliary assembly, is convenient for kiln head sealing cover or kiln tail sealing cover installation, plays the effect of auxiliary.

Description

Technical Field

[0001] This utility model belongs to the field of rotary kiln sealing technology, specifically relating to a rotary kiln head and tail sealing device. Background Technology

[0002] Rotary kilns are used in the metallurgical industry for the magnetization roasting of lean iron ore in steel plants. Cement kilns are mainly used for calcining cement clinker and are divided into two main categories: dry-process cement kilns and wet-process cement kilns. Metallurgical and chemical kilns are mainly used in the metallurgical industry for the magnetization roasting of lean iron ore in steel plants; the oxidation roasting of chromium and nickel iron ore; the roasting of high-metallurgical-grade ores in refractory material plants; the roasting of clinker and aluminum hydroxide in aluminum plants; and the roasting of chromite sand and chromite powder in chemical plants. Lime kilns are used for roasting active lime and lightly calcined dolomite for steel plants and ferroalloy plants.

[0003] In existing technologies, such as a rotary kiln head and tail sealing structure, the sealing effect is achieved through a single kiln head and tail cover during use, resulting in poor sealing performance. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a rotary kiln head and tail sealing device with excellent sealing performance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rotary kiln head and tail sealing device, comprising a rotary kiln body, with sealing caps sleeved at both ends of the rotary kiln body, fixed seats symmetrically connected to the surface of the rotary kiln body, a rubber sealing gasket fixedly connected to one side of the sealing cap, a sealing component fixedly connected to one side inside the sealing cap, and auxiliary components provided on both sides of the sealing cap. The sealing assembly includes a bearing steel plate, which is fixedly connected to both ends inside the rotary kiln body. An outer stepped rubber gasket is fixedly connected to one side of the bearing steel plate, and an inner stepped rubber gasket that cooperates with the outer stepped rubber gasket is fixedly connected to one side inside the sealing cover.

[0006] Preferably, the inner stepped rubber pad includes a rubber pad substrate, and a high-temperature resistant layer is provided on the surface of the rubber pad substrate.

[0007] Preferably, a pressure-resistant layer is provided on the side of the high-temperature resistant layer away from the rubber pad substrate.

[0008] Preferably, a corrosion-resistant layer is provided on the side of the pressure-resistant layer away from the high-temperature resistant layer.

[0009] Preferably, the outer stepped rubber pad and the inner stepped rubber pad are made of the same material.

[0010] Preferably, the auxiliary component includes a positioning seat, which is fixedly connected to both sides of a fixed seat, and a positioning rod is inserted into the middle of the positioning seat, with one end of the positioning rod fixedly connected to a sealing cover.

[0011] Preferably, the sealing cover has symmetrical and fixedly connected hanging brackets on both sides, and the hanging brackets have symmetrical holes in the middle.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model achieves a good sealing effect on the kiln head and kiln tail of the rotary kiln by setting a sealing component. Multiple compression sealing is achieved through the inner and outer stepped rubber gaskets, resulting in a good sealing effect. In addition, the inner and outer stepped rubber gaskets have the effects of high temperature resistance, pressure resistance and corrosion resistance.

[0013] 2. This utility model, by setting auxiliary components, achieves an auxiliary effect when installing the kiln head sealing cover or the kiln tail sealing cover. The positioning block and positioning rod facilitate precise positioning during the installation of the sealing cover. The combination of the lifting seat and the hole makes it easy to lift the sealing cover. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional schematic diagram of a portion of the structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the sealing component of this utility model; Figure 4 This is a cross-sectional structural diagram of the inner stepped sealing gasket of this utility model; Figure 5 This is a schematic diagram of the structure of the auxiliary component of this utility model.

[0015] In the diagram: 1. Rotary kiln body; 2. Sealing cover; 3. Fixed seat; 4. Rubber sealing gasket; 5. Sealing assembly; 51. Bearing steel plate; 52. Outer stepped rubber gasket; 53. Inner stepped rubber gasket; 531. Rubber gasket substrate; 532. High temperature resistant layer; 533. Pressure resistant layer; 534. Corrosion resistant layer; 6. Auxiliary components; 61. Positioning seat; 62. Positioning rod; 63. Hanging seat; 64. Hole. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Example 1 Please see Figure 1-5 The present invention provides the following technical solution: a rotary kiln head and tail sealing device, including a rotary kiln body 1, sealing caps 2 are sleeved on both ends of the rotary kiln body 1, a fixed seat 3 is fixedly connected to the surface of the rotary kiln body 1 symmetrically, a rubber sealing gasket 4 is fixedly connected to one side of the sealing cap 2, a sealing component 5 is fixedly connected to one side inside the sealing cap 2, and auxiliary components 6 are provided on both sides of the sealing cap 2. The sealing assembly 5 includes a bearing steel plate 51, which is fixedly connected to both ends inside the rotary kiln body 1. An outer stepped rubber gasket 52 is fixedly connected to one side of the bearing steel plate 51, and an inner stepped rubber gasket 53 that cooperates with the outer stepped rubber gasket 52 is fixedly connected to one side inside the sealing cover 2.

[0018] By adopting the above technical solution, when the sealing cover 2 is installed, multiple seals are achieved through the multiple compression and bonding of the inner stepped rubber gasket 53 and the outer stepped rubber gasket 52, resulting in a good sealing effect.

[0019] Specifically, the inner stepped rubber pad 53 includes a rubber pad substrate 531, and a high-temperature resistant layer 532 is provided on the surface of the rubber pad substrate 531.

[0020] By adopting the above technical solution, the high-temperature resistant layer 532 is the effect layer. During the production of the rubber pad, special high-temperature anti-aging agents, such as aromatic amines and phenolic anti-aging agents, are added to delay the oxidative aging and thermal degradation at high temperatures, thereby achieving good high-temperature resistance.

[0021] Specifically, a pressure-resistant layer 533 is provided on the side of the high-temperature resistant layer 532 away from the rubber pad substrate 531.

[0022] By adopting the above technical solution, the compression-resistant layer 533 is the effect layer. During the production of the rubber pad, anti-compression permanent deformation additives, such as special plasticizers and reinforcing resins, are added to improve the elastic recovery performance of the rubber after being compressed. High-modulus fillers, such as carbon fiber and nano silica, are added to increase the hardness and rigidity of the rubber matrix and reduce compression creep, thereby improving the compression resistance effect.

[0023] Specifically, a corrosion-resistant layer 534 is provided on the side of the pressure-resistant layer 533 that is away from the high-temperature resistant layer 532.

[0024] By adopting the above technical solution, the corrosion-resistant layer 534 is the effect layer. During the production of the rubber pad, corrosion-resistant fillers, such as clay and graphite, are added to improve the anti-swelling and anti-permeability properties of the rubber matrix, thereby improving the corrosion resistance effect.

[0025] Specifically, the outer stepped rubber pad 52 and the inner stepped rubber pad 53 are made of the same material.

[0026] In this embodiment, during installation of the sealing cover 2, multiple seals are achieved through the multiple compression and bonding of the inner stepped rubber gasket 53 and the outer stepped rubber gasket 52, resulting in a good sealing effect. Furthermore, the outer stepped rubber gasket 52 and the inner stepped rubber gasket 53 have good high temperature resistance, pressure resistance, and corrosion resistance. Thus, when the device is in use, after the rubber sealing gasket 4 has initially sealed the area, multiple seals are achieved through the multiple compression and bonding of the inner stepped rubber gasket 53 and the outer stepped rubber gasket 52, resulting in a good sealing effect.

[0027] Example 2 The difference between this embodiment and embodiment 1 is that, specifically, the auxiliary component 6 includes a positioning seat 61, which is fixedly connected to both sides of the fixed seat 3. A positioning rod 62 is inserted into the middle of the positioning seat 61, and one end of the positioning rod 62 is fixedly connected to the sealing cover 2.

[0028] By adopting the above technical solution, the positioning rod 62 and the positioning seat 61 cooperate to facilitate the positioning of the sealing cover 2 during installation.

[0029] Specifically, the two sides of the sealing cover 2 are symmetrically and fixedly connected with the hanger 63, and the hanger 63 has symmetrical holes 64 in the middle.

[0030] By adopting the above technical solution, the sealing cover 2 can be easily hoisted by external equipment through the cooperation of the lifting bracket 63 and the hole 64, thus facilitating its installation and removal.

[0031] In this embodiment, the positioning rod 62 and the positioning seat 61 work together to facilitate the positioning of the sealing cover 2 during installation. The lifting seat 63 and the hole 64 work together to facilitate the hoisting of the sealing cover 2 by external equipment, thereby facilitating its installation and removal. This allows the device to easily install and remove the sealing cover 2 during use.

[0032] The working principle and usage process of this utility model: This utility model is used for sealing the kiln head and kiln tail of a rotary kiln. In use, the sealing cover 2 is lifted using external hoisting equipment in conjunction with the lifting base 63 and the hole 64. Then, the sealing cover 2 is positioned and fitted onto both ends of the rotary kiln body 1 using the positioning base 61 and the positioning rod 62. After fitting, bolts and nuts are used to fix the fixing base 3 and the sealing cover 2. During fixing, the rubber sealing gasket 4 is squeezed between the fixing base 3 and the sealing cover 2 for initial sealing. Simultaneously, during the installation of the sealing cover 2, the internal... The inner stepped rubber gasket 53 and the outer stepped rubber gasket 52 inside the rotary kiln body 1 are sealed by stepped compression, achieving secondary sealing and resulting in good sealing effect. The high-temperature resistant layer 532 gives the inner stepped rubber gasket 53 and the outer stepped rubber gasket 52 good high-temperature resistance. The pressure-resistant layer 533 gives the inner stepped rubber gasket 53 and the outer stepped rubber gasket 52 good pressure resistance. The corrosion-resistant layer 534 gives the inner stepped rubber gasket 53 and the outer stepped rubber gasket 52 good corrosion resistance.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rotary kiln head and tail sealing device, comprising a rotary kiln body (1), wherein sealing caps (2) are sleeved at both ends of the rotary kiln body (1), and fixing seats (3) are symmetrically connected to the surface of the rotary kiln body (1), and a rubber sealing gasket (4) is fixedly connected to one side of the sealing caps (2), characterized in that: A sealing component (5) is fixedly connected to one side inside the sealing cover (2), and auxiliary components (6) are provided on both sides of the sealing cover (2). The sealing assembly (5) includes a bearing steel plate (51), which is fixedly connected to both ends inside the rotary kiln body (1). An outer stepped rubber pad (52) is fixedly connected to one side of the bearing steel plate (51), and an inner stepped rubber pad (53) that cooperates with the outer stepped rubber pad (52) is fixedly connected to one side inside the sealing cover (2).

2. The rotary kiln head and tail sealing device according to claim 1, characterized in that: The inner stepped rubber pad (53) includes a rubber pad substrate (531), and a high-temperature resistant layer (532) is provided on the surface of the rubber pad substrate (531).

3. The rotary kiln head and tail sealing device according to claim 2, characterized in that: The high-temperature resistant layer (532) has a pressure-resistant layer (533) on the side away from the rubber pad substrate (531).

4. The rotary kiln head and tail sealing device according to claim 3, characterized in that: A corrosion-resistant layer (534) is provided on the side of the pressure-resistant layer (533) away from the high-temperature resistant layer (532).

5. The rotary kiln head and tail sealing device according to claim 1, characterized in that: The outer stepped rubber pad (52) and the inner stepped rubber pad (53) are made of the same material.

6. The rotary kiln head and tail sealing device according to claim 1, characterized in that: The auxiliary component (6) includes a positioning seat (61), which is fixedly connected to both sides of the fixed seat (3). A positioning rod (62) is inserted into the middle of the positioning seat (61), and one end of the positioning rod (62) is fixedly connected to the sealing cover (2).

7. A rotary kiln head and tail sealing device according to claim 6, characterized in that: The sealing cover (2) is symmetrically connected to the two sides of the hanging base (63), and the hanging base (63) is symmetrically provided with holes (64) in the middle.

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