Steam shaft sealing device for steam calcining furnace

Abstract

The utility model provides a steam shaft sealing device for a steam calcining furnace, which belongs to the technical field of steam calcining furnaces and comprises a sealing shaft, a fixing component and a steam shaft, the surface of the sealing shaft is fixedly connected with a containing frame, the fixing component is arranged in the containing frame in a sliding manner, a sealing groove is formed in the inner wall of the sealing shaft, and the steam shaft is arranged in the sealing groove. A sealing strip is installed on one side of the containing frame, the sealing strip is in sliding connection with the interior of the sealing groove, one end of the sealing strip is fixedly installed in the fixing assembly, a sliding pressing groove is formed in the fixing assembly, and a threaded column is in sliding connection with the top of the fixing assembly. The sealing device has the advantages that when the steam shaft is inserted into the sealing shaft, the sealing strip is in a natural non-tensioning state, the steam shaft can be conveniently inserted, the sealing strip can be in a tensioning state by rotating the threaded column after the steam shaft is inserted, the sealing effect of the sealing strip on the steam shaft is improved, the sealing non-slip mat is attached to the steam shaft, and the fixing assembly clamps and fixes the steam shaft; and the operation is simple and convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of steam calcining furnaces, and in particular relates to a steam shaft sealing device for steam calcining furnaces. Background Art

[0002] Steam calcining furnace is an important equipment for producing building materials. Its specific function is to exchange heat between steam and materials. The traditional structure of steam calcining furnace is composed of feed port, furnace head, furnace body, steam inlet shaft and transmission device. High-temperature steam is introduced into the furnace body through the steam inlet shaft to heat or react the materials entering the furnace head and furnace body from the feed port, thereby achieving the purpose of heating decomposition and dehydration. In order to prevent high-temperature steam from leaking from the steam inlet shaft, sealing measures need to be taken for the steam inlet shaft.

[0003] A steam shaft sealing device for a steam calcining furnace is disclosed in Chinese patent CN216430501U. The steam shaft sealing device for the steam calcining furnace seals the steam shaft through the reaction force of the first telescopic spring and the second telescopic spring, thereby achieving a more solid effect of sealing the steam shaft and the sealing shaft, avoiding the phenomenon of air leakage of the steam shaft inside the sealing device, and improving the sealing effect of the sealing device. However, the steam shaft sealing device for the steam calcining furnace has the following defects while solving the problem:

[0004] The device seals the steam shaft by the elastic force of the first telescopic spring and the second telescopic spring. If the spring force is too large, it will be difficult to insert the steam shaft into the sealing shaft. If the spring force is too small, it will easily cause loose sealing and inconvenience in use. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a steam shaft sealing device for a steam calcining furnace in view of the deficiencies of the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A steam shaft sealing device for a steam calcining furnace comprises a sealing shaft, a fixing assembly and a steam shaft, wherein a accommodating frame is fixedly connected to the surface of the sealing shaft, the fixing assembly is slidably arranged inside the accommodating frame, a closed groove is provided on the inner wall of the sealing shaft, a sealing strip is installed on one side of the accommodating frame, the sealing strip is slidably connected to the inside of the closed groove, one end of the sealing strip is fixedly installed to the inside of the fixing assembly, a sliding and pressure groove is provided inside the fixing assembly, and a threaded column is slidably connected to the top of the fixing assembly; one end of the threaded column penetrates into the inside of the sliding and pressure groove and abuts against the sealing strip, and the other end of the threaded column penetrates out of the accommodating frame away from the sealing shaft and is threadedly connected to the accommodating frame.

[0008] Furthermore, a curved surface is provided on one side of the fixed component close to the sealing shaft, the curved surface has the same curvature as the surface of the steam shaft, and a sealing anti-slip pad is fixedly installed on the surface of the curved surface; the steam shaft passes through the interior of the sealing shaft, and the fixed component clamps the steam shaft through the sealing anti-slip pad that fits on the curved surface, and the sealing strip fits with the steam shaft along the circumferential direction of the steam shaft.

[0009] Furthermore, an arc-shaped slide groove is provided on one side of the fixing component, and one end of the arc-shaped slide groove is connected to the sliding and pressing groove; an anti-wear angle is provided at one end of the arc-shaped slide groove, and the anti-wear angle is slidably connected to the surface of the sealing strip.

[0010] Furthermore, a slide groove is provided inside the sliding and pressing groove, a pressure plate is slidably connected inside the slide groove, a rotating ring is fixedly installed on the top of the pressure plate, and the inside of the rotating ring is rotatably connected to one end of the threaded column.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] In the device, when the steam shaft is inserted into the sealing shaft, the sealing strip is in a natural non-tensioned state, which can facilitate the insertion of the steam shaft. After the steam shaft is inserted, the sealing strip can be put in a tensioned state by rotating the threaded column, thereby improving the sealing effect of the sealing strip on the steam shaft.

[0013] Rotating the threaded column can tighten the sealing strip while the thrust of the threaded column drives the fixing component to move toward the steam shaft, so that the sealing anti-skid pad fits the steam shaft and the fixing component clamps the steam shaft, which is relatively easy to operate.

[0014] The arc surface that is consistent with the arc of the sealing shaft can increase the contact area between the fixing component and the steam shaft, thereby improving the fixing effect of the steam shaft.

[0015] By setting the anti-wear angle, when the threaded column does not squeeze the sealing strip, the sealing strip slides out of the arc-shaped slide groove through the anti-wear angle, thereby preventing the sealing strip from being frictioned by the arc-shaped slide groove connection and extending the service life of the sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] Figure 1 : A three-dimensional structural diagram of the utility model;

[0018] Figure 2 : A schematic diagram of the structure of the utility model after the sealing shaft and the fixed component are disassembled after the cutaway view;

[0019] Figure 3 : A schematic diagram of the structure of the utility model in cross section;

[0020] Figure 4 : A schematic diagram of the structure of the fixed component of the utility model in cross section;

[0021] Among them, 10-sealing shaft, 11-containing frame, 12-closing groove, 13-sealing strip, 20-fixing component, 21-sliding groove, 22-threaded column, 23-arc surface, 24-anti-slip pad, 25-arc sliding groove, 26-anti-wear angle, 27-sliding groove, 28-pressure plate, 29-rotating ring, 30-steam shaft. DETAILED DESCRIPTION

[0022] In order to better understand the present invention, the content of the present invention is further clearly described below in conjunction with the embodiments, but the protection content of the present invention is not limited to the following embodiments. In the following description, a large number of specific details are given in order to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0023] Example 1: See Figure 1-3 A steam shaft sealing device for a steam calcining furnace comprises a sealing shaft 10, a fixing assembly 20 and a steam shaft 30. The steam shaft 30 is placed in the sealing shaft 10. A receiving frame 11 is fixedly connected to the surface of the sealing shaft 10. The receiving frame 11 is a convex frame with an opening facing the axis of the sealing shaft 10. The fixing assembly 20 is slidably arranged inside the receiving frame 11. The fixing assembly 20 is arranged with arc angles on both sides of the end of the sealing shaft 10. The arc angles prevent the fixing assembly 20 from hindering the insertion of the steam shaft 30 when the steam shaft 30 is inserted into the sealing shaft 10. A closed groove 12 is provided on the inner wall of the sealing shaft 10. A sealing strip 13 is installed on one side of the receiving frame 11. The sealing strip 13 is slidably connected to the inside of the closed groove 12. When the steam shaft 30 is inserted into the sealing shaft 10, the surface contacts the sealing strip 13. When the steam shaft 30 is inserted into the sealing shaft 10, the sealing strip 13 is in a natural non-tensioned state. It can facilitate the insertion of the steam shaft 30. One end of the sealing strip 13 is fixedly installed inside the fixing component 20. A sliding groove 21 is arranged inside the fixing component 20. A threaded column 22 is slidably connected to the top of the fixing component 20. By rotating the threaded column 22, one end of the threaded column 22 enters the accommodating frame 11 and the sliding groove 21, and squeezes the sealing strip 13, so that the sealing strip 13 is bent, and then the sealing strip 13 on the surface of the steam shaft 30 is tightened, so that the sealing strip 13 completes the sealing of the sealing shaft 10 and the steam shaft 30. After the insertion of the steam shaft 30 is completed, the threaded column 22 is rotated to put the sealing strip 13 in a tightened state, thereby improving the sealing effect of the sealing strip 13 on the steam shaft 30. One end of the threaded column 22 penetrates into the interior of the sliding groove 21 and abuts against the sealing strip 13, and the other end of the threaded column 22 penetrates out of the accommodating frame 11 and is threadedly connected to the accommodating frame 11 on the side away from the sealing shaft 10.

[0024] See also Figure 4A curved surface 23 is provided on one side of the fixed component 20 close to the sealing shaft 10. The curved surface 23 has the same curvature as the surface of the steam shaft 30. The curved surface 23 having the same curvature as the sealing shaft 10 can increase the contact area between the fixed component 20 and the steam shaft 30, thereby improving the fixing effect of the steam shaft 30. A sealing anti-skid pad 24 is fixedly installed on the surface of the curved surface 23. When the threaded column 22 is rotated, the threaded column 22 tightens the sealing strip 13, and the steam shaft 30 penetrates into the interior of the sealing shaft 10. The fixed component 20 clamps the steam shaft 30 through the sealing anti-skid pad 24 that is attached to the curved surface 23. The thrust of the threaded column 22 drives the fixed component 20 to move toward the steam shaft 30, so that the sealing anti-skid pad 24 is attached to the steam shaft 30, so that the fixed component 20 clamps and fixes the steam shaft 30, and the sealing strip 13 is attached to the steam shaft 30 along the circumferential direction of the steam shaft 30.

[0025] See also Figure 2-4 An arc-shaped slide groove 25 is provided on one side of the fixing component 20, one end of the arc-shaped slide groove 25 is connected to the sliding and pressing groove 21, and the end of the arc-shaped slide groove 25 away from the surface of the steam shaft 30 is connected to the sliding and pressing groove 21. When the threaded column 22 squeezes the sealing strip 13, the sealing strip 13 has a certain curvature at the arc-shaped slide groove 25, thereby tightening the sealing strip 13. An anti-wear angle 26 is provided at one end of the arc-shaped slide groove 25, and the anti-wear angle 26 is slidably connected to the surface of the sealing strip 13. By setting the anti-wear angle 26, when the threaded column 22 does not squeeze the sealing strip 13, the sealing strip 13 slides out of the arc-shaped slide groove 25 through the anti-wear angle 26, thereby preventing the sealing strip 13 from being subjected to friction at the connection of the arc-shaped slide groove 25, thereby extending the service life of the sealing strip 13.

[0026] Beneficial effects:

[0027] 1. Put the steam shaft 30 into the sealing shaft 10, the surface of the steam shaft 30 contacts the sealing strip 13, and then rotate the threaded column 22, one end of the threaded column 22 enters the accommodating frame 11 and the sliding groove 21, and squeezes the sealing strip 13, so that the sealing strip 13 is bent, and then the sealing strip 13 on the surface of the steam shaft 30 is tightened, so that the sealing strip 13 completes the sealing of the sealing shaft 10 and the steam shaft 30. In this device, when the steam shaft 30 is inserted into the sealing shaft 10, the sealing strip 13 is in a natural non-tensioned state, which can facilitate the insertion of the steam shaft 30. After the steam shaft 10 is inserted, the threaded column 22 is rotated to put the sealing strip 13 in a tensioned state, thereby improving the sealing effect of the sealing strip 13 on the steam shaft 30;

[0028] 2. When the threaded column 22 is rotated, the threaded column 22 tightens the sealing strip 13. At the same time, the thrust of the threaded column 22 drives the fixing assembly 20 to move toward the steam shaft 30, so that the sealing anti-slip pad 24 fits the steam shaft 30, and the fixing assembly 20 clamps and fixes the steam shaft 30. Rotating the threaded column 22 can fix the steam shaft 30 while tightening the sealing strip 13, and the operation is relatively simple.

[0029] Embodiment 2: Embodiment 2 is a further improvement made on the basis of Embodiment 1, see Figure 2-4 A steam shaft sealing device for a steam calcining furnace, a slide groove 27 is arranged inside the slide groove 21, a pressure plate 28 is slidably connected inside the slide groove 27, a rotating ring 29 is fixedly installed on the top of the pressure plate 28, and the inside of the rotating ring 29 is rotatably connected to one end of the threaded column 22.

[0030] Beneficial effects:

[0031] By rotating the threaded column 22, one end of the threaded column 22 drives the pressure plate 28 to move through the rotating ring 29. The pressure plate 28 is restricted by the slide groove 27 to prevent rotation, so that when the threaded column 22 clamps the sealing strip 13 through the pressure plate 28, friction between the threaded column 22 and the sealing strip 13 due to rotation can be avoided. At the same time, the pressure plate 28 and the sealing strip 13 have a large contact area, which avoids the situation where the threaded column 22 directly clamps the sealing strip 13 and is unable to clamp the sealing strip 13 due to dislocation and separation.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

[0033] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steam shaft sealing device for a steam calcining furnace, characterized in that: The invention comprises a sealing shaft (10), a fixing assembly (20) and a steam shaft (30); the surface of the sealing shaft (10) is fixedly connected to a receiving frame (11); the fixing assembly (20) is slidably arranged inside the receiving frame (11); the inner wall of the sealing shaft (10) is provided with a closed groove (12); a sealing strip (13) is installed on one side of the receiving frame (11); the sealing strip (13) is slidably connected to the inside of the closed groove (12); one end of the sealing strip (13) is fixedly installed inside the fixing assembly (20); a sliding groove (21) is arranged inside the fixing assembly (20); and a threaded column (22) is slidably connected to the top of the fixing assembly (20).

2. The steam shaft sealing device for a steam calcining furnace according to claim 1, characterized in that: One end of the threaded column (22) penetrates into the interior of the sliding and pressing groove (21) and abuts against the sealing strip (13), and the other end of the threaded column (22) penetrates out of the side of the accommodating frame (11) away from the sealing shaft (10) and is threadedly connected to the accommodating frame (11).

3. The steam shaft sealing device for a steam calcining furnace according to claim 1, characterized in that: A curved surface (23) is provided on one side of the fixed component (20) close to the sealing shaft (10); the curved surface (23) has the same curvature as the surface of the steam shaft (30); and a sealing anti-slip pad (24) is fixedly mounted on the surface of the curved surface (23).

4. The steam shaft sealing device for a steam calcining furnace according to claim 3, characterized in that: The steam shaft (30) penetrates into the interior of the sealing shaft (10), the fixing assembly (20) clamps the steam shaft (30) via a sealing anti-slip pad (24) affixed to the arc surface (23), and the sealing strip (13) affixes to the steam shaft (30) along the circumferential direction of the steam shaft (30).

5. The steam shaft sealing device for a steam calcining furnace according to claim 1, characterized in that: An arc-shaped sliding groove (25) is provided on one side of the fixing component (20), and one end of the arc-shaped sliding groove (25) is connected to the sliding and pressing groove (21).

6. The steam shaft sealing device for a steam calcining furnace according to claim 5, characterized in that: An anti-friction angle (26) is provided at one end of the arc-shaped sliding groove (25), and the anti-friction angle (26) is slidably connected to the surface of the sealing strip (13).

7. The steam shaft sealing device for a steam calcining furnace according to claim 1, characterized in that: A sliding groove (27) is provided inside the sliding and pressing groove (21), a pressure plate (28) is slidably connected inside the sliding groove (27), a rotating ring (29) is fixedly mounted on the top of the pressure plate (28), and the interior of the rotating ring (29) is rotatably connected to one end of the threaded column (22).

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