A fixing and sealing device for vertical pipe of calcining furnace

Abstract

The utility model discloses a kind of for calcining furnace vertical insertion pipe fixing and sealing device, it is related to industrial kiln equipment technical field, it includes sand seal cover with round hole being opened in top, metal connecting piece is sleeved in sand seal cover top side round hole, and metal connecting piece upper and lower side is equipped with screw thread, and metal connecting piece bottom side screw thread part is connected with upper nut, indicating sheet, rock wool gasket, stainless steel gasket and lower nut from top to bottom, the sleeve of metal connecting piece bottom end screw thread part is connected, and sleeve bottom side is connected vertical insertion pipe by screw thread connection.The utility model replaces traditional refractory mortar sealing mode by mechanical screw thread connection structure, significantly improves the fixing and sealing performance of calcining furnace vertical insertion pipe.Metal connecting piece and double nut design are used, combined with rock wool gasket and stainless steel gasket, quick disassembly and reliable sealing are realized, and the tedious operation of repeatedly removing mortar is avoided.

Description

Technical Field

[0001] This utility model relates to the field of industrial kiln equipment technology, specifically to a device for fixing and sealing vertical insertion pipes in a calcining furnace. Background Technology

[0002] In existing technologies for fixing and sealing vertical insertion pipes in calcining furnaces, the opening size of the sand seal cover needs to be slightly larger than the outer diameter of the vertical insertion pipe to ensure installation, resulting in gaps between them. Traditional methods use metal bending plates and U-shaped clips to fix the purge pipe, and then seal the gaps with refractory mortar. However, the use of refractory mortar makes replacing the vertical insertion pipe extremely inconvenient, requiring the removal of old mortar and resealing, which is not only cumbersome but also increases maintenance time and costs. Furthermore, repeated disassembly and reassembly can lead to a decrease in sealing performance, affecting the stability of equipment operation. Therefore, there is an urgent need for a vertical insertion pipe fixing and sealing structure that does not require refractory mortar, is easy to disassemble and assemble, and provides a reliable seal, to solve the problems of inconvenient maintenance and low efficiency of existing technologies. Utility Model Content

[0003] (a) Technical problems to be solved

[0004] In view of the shortcomings of the prior art, this utility model provides a device for fixing and sealing the vertical insertion tube of a calcining furnace, which solves the technical problems mentioned in the background.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a device for fixing and sealing a vertical insertion tube in a calcining furnace, comprising a sand seal cover with a round hole at the top, a metal connector fitted inside the round hole on the top side of the sand seal cover, and threads on both the upper and lower sides of the metal connector, and an upper nut, an indicator plate, a rock wool gasket, a stainless steel gasket and a lower nut connected from top to bottom on the threaded part of the bottom side of the metal connector, wherein the upper nut, the indicator plate and the rock wool gasket are located on the upper side of the sand seal cover, and the stainless steel gasket and the lower nut are located on the lower side of the sand seal cover, and a sleeve is connected to the threaded part at the bottom end of the metal connector, and the vertical insertion tube is connected to the bottom side of the sleeve by a thread.

[0007] Preferably, the indicator piece has three indicator arrows, which are vertically distributed among each other.

[0008] Preferably, the upper and lower ends of the metal connector have different thread widths, and both ends of the metal connector can be connected to the sleeve.

[0009] Preferably, the metal connector is fixed to the sand seal cover by rotating the lower nut and the upper nut closer together, which also serves as a seal.

[0010] Preferably, the internal gap at the connection between the vertical insertion tube and the sleeve is reinforced with high-temperature sealant.

[0011] (III) Beneficial Effects

[0012] The beneficial effects of this utility model are as follows:

[0013] This invention relates to a device for fixing and sealing vertical insertion pipes in calcining furnaces. By replacing traditional refractory mortar sealing with a mechanical threaded connection structure, it significantly improves the fixing and sealing performance of the vertical insertion pipes. Employing metal connectors and a double-nut design, combined with rock wool and stainless steel gaskets, it achieves quick assembly and disassembly and reliable sealing, avoiding the tedious process of repeatedly removing mortar. Furthermore, the entire device is reusable, resulting in low maintenance costs, and the high-temperature sealant further enhances the sealing performance at the joints. This design not only extends the service life of the vertical insertion pipes but also improves maintenance efficiency, making it suitable for various operating conditions and highly practical and economical. Attached Figure Description

[0014] Fig. 1 This is a three-dimensional structural diagram of the present invention;

[0015] Fig. 2 This is a three-dimensional structural diagram of the present invention viewed from below;

[0016] Fig. 3 This is a schematic diagram of the three-dimensional disassembled structure of this utility model.

[0017] In the diagram: 1. Vertical insertion tube, 2. Sand seal cap, 3. Sleeve, 4. Stainless steel gasket, 5. Rock wool gasket, 6. Indicator plate, 7-1. Lower nut, 7-2. Upper nut, 8. Metal connector. Detailed Implementation

[0018] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figs. 1-3As shown, this utility model provides a technical solution: a device for fixing and sealing a vertical insertion pipe in a calcining furnace, including a sand seal cover 2 with a round hole at the top, a metal connector 8 fitted inside the round hole at the top of the sand seal cover 2, the metal connector 8 being a part that connects to the vertical insertion pipe 1 at the bottom and to a metal braided hose at the top, and is also made of metal, with threads on both the upper and lower sides of the metal connector 8, the thread widths of the upper and lower ends of the metal connector 8 being different, and the threaded part on the bottom side of the metal connector 8 being connected from top to bottom to an upper nut 7-2, an indicator plate 6, a rock wool gasket 5, a stainless steel gasket 4 and a lower nut 7-1, and the upper nut 7-2... -2. The indicator plate 6 and rock wool gasket 5 are located on the upper side of the sand seal cover 2, while the stainless steel gasket 4 and lower nut 7-1 are located on the lower side of the sand seal cover 2. The metal connector 8 is fixed to the sand seal cover 2 by rotating the lower nut 7-1 and the upper nut 7-2 closer together, thus achieving a sealing function. During installation, the nut 7-2 needs to be screwed onto the upper metal connector 8, then the indicator plate 6 and rock wool gasket 5 are sequentially installed onto the upper metal connector 8. The assembled component is then inserted into the round hole on the sand seal cover 2. Finally, the stainless steel gasket 4 and stainless steel nut 7-2 are connected to the bottom of the metal connector 8. Fig. 2 As shown in the installation diagram, the metal connector 8 is fixed to the sand seal cover 2 by rotating the lower nut 7-1 and the upper nut 7-2 closer together, which also serves as a seal. The bottom threaded part of the metal connector 8 is connected to the sleeve 3, and the bottom side of the sleeve 3 is connected to the vertical insertion tube 1. The top side of the vertical insertion tube is threaded and connected to the internal thread of the sleeve 3. The internal gap at the connection between the vertical insertion tube 1 and the sleeve 3 is reinforced with high-temperature sealant. The indicator plate 6 is provided with three indicator arrows, which are vertically distributed between each other. The indicator arrows can guide the installation direction of the purge hole of the vertical insertion tube 1.

[0020] The operational steps for this application are as follows:

[0021] Assemble the vertical insertion tube 1 and sleeve 3 together using threads. Reinforce the internal gaps between the vertical insertion tube 1 and sleeve 3 with high-temperature sealant. Before overall installation, drill a hole in the sand seal cover 2 according to the required diameter. Then, screw nut 7-2 onto the upper metal connector 8. Next, install the indicator sign 6 and rock wool gasket 5 onto the upper metal connector 8 in sequence. Then, insert the assembled component into the round hole on the sand seal cover 2. Finally, connect the stainless steel gasket 4 and stainless steel nut 7-2 to the bottom of the metal connector 8. Fig. 2 As shown in the installation diagram, the metal connector 8 is fixed to the sand seal cover 2 by rotating the lower nut 7-1 and the upper nut 7-2 closer together, which also serves as a seal. The bottom end of the metal connector 8 is connected to the sleeve 3 on the top side of the vertical insertion tube 1 by a thread, thus realizing the overall assembly of the device.

[0022] If the vertical insertion tube 1 is damaged during use, the entire assembly can be pulled out of the calcining furnace. The assembly consisting of the vertical insertion tube 1 and the sleeve 3 can be removed and replaced with a new assembly. If the installation position of the vertical insertion tube 1 is found to be inaccurate during use, the lower nut 7-1 and the upper nut 7-2 can be loosened according to the actual situation. The metal connector 8 can be moved in the round hole to adjust the insertion depth of the vertical insertion tube 1. Then, the lower nut 7-1 and the upper nut 7-2 can be rotated to fix it. When the insertion length of the entire vertical insertion tube 1 is too long, the upper metal connector 8 can also be reversed and the short threaded end can be inserted into the sleeve 3 to achieve rapid adjustment in multiple directions.

[0023] In the description of this utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] In this utility model, unless otherwise explicitly specified and limited, for example, it can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components or an interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] 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 device for fixing and sealing vertical insertion pipes in a calcining furnace, characterized in that: The device includes a sand seal cover (2) with a round hole at the top. A metal connector (8) is fitted inside the round hole at the top of the sand seal cover (2). The metal connector (8) has threads on both the top and bottom sides. The threaded part at the bottom of the metal connector (8) is connected from top to bottom to an upper nut (7-2), an indicator plate (6), a rock wool gasket (5), a stainless steel gasket (4), and a lower nut (7-1). The upper nut (7-2), the indicator plate (6), and the rock wool gasket (5) are located on the upper side of the sand seal cover (2), while the stainless steel gasket (4) and the lower nut (7-1) are located on the lower side of the sand seal cover (2). A sleeve (3) is connected to the threaded part at the bottom of the metal connector (8), and the bottom side of the sleeve (3) is connected to the vertical insertion tube (1) by a thread.

2. The device for fixing and sealing vertical insertion pipes in a calcining furnace according to claim 1, characterized in that: The indicator piece (6) has three indicator arrows, which are vertically distributed among each other.

3. The device for fixing and sealing vertical insertion pipes in a calcining furnace according to claim 1, characterized in that: The upper and lower ends of the metal connector (8) have different thread widths, and both the upper and lower ends of the metal connector (8) can be connected to the sleeve (3).

4. The device for fixing and sealing vertical insertion pipes in a calcining furnace according to claim 1, characterized in that: The metal connector (8) is fixed to the sand seal cover (2) by rotating the lower nut (7-1) and the upper nut (7-2) closer together, and a sealing effect is achieved.

5. The device for fixing and sealing vertical insertion pipes in a calcining furnace according to claim 1, characterized in that: The internal gap at the connection between the vertical insertion tube (1) and the sleeve (3) is reinforced with high-temperature sealant.

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