Rotation stopping device for gas pipe adapter of reduction furnace

Abstract

The utility model discloses a gas pipe adapter rotation stopping device of a reduction furnace, which comprises a furnace body, a furnace tube, a gas outlet pipe and an adapter, the adapter comprises a rotating part and a static part which are coaxially connected through a bearing, the rotating part is connected with the furnace tube and rotates along with the furnace tube, and the static part is connected with the gas outlet pipe. A rotation stopping piece is installed on the outer wall of the side, facing the adapter, of the furnace body and comprises a vertical plate, an inverted-U-shaped limiting groove extending upwards is formed in the bottom edge of the vertical plate, and the inner walls of the two sides of the inverted-U-shaped limiting groove make contact with the outer walls of the two sides of the static part correspondingly and are used for restraining the static part. The rotation stopping piece is installed on the outer wall of one side of the furnace body and can restrain the static portion of the adapter from rotating, even if the bearing is unsmooth in rotation and even blocked due to high temperature, the gas outlet pipe can be prevented from rotating along with the furnace tube, the gas outlet pipe is prevented from being twisted and even broken, and use safety of the reduction furnace is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of reduction furnaces, in particular to a rotation-stopping device for an air pipe adapter of a reduction furnace. Background Art

[0002] The reduction furnace needs to continuously introduce hydrogen during the production process, entering from one end of the furnace tube and flowing out from the other end of the furnace tube. Since the inlet and outlet pipes are fixed and do not rotate, while the furnace tube rotates continuously, it is necessary to add a conversion joint between the furnace tube and the inlet and outlet pipes, so that the furnace tube rotates relative to the inlet and outlet pipes while the air pipes do not rotate.

[0003] At present, a water-cooled air pipe adapter is used, which consists of a rotating part and a stationary part coaxially installed together through a bearing, and the adapter must have a sealing function and cannot leak. Since the reduction furnace is heated at high temperature when in use, the temperature can reach 1200°C, and the exhaust gas must pass through the adapter of the outlet pipe, which makes the adapter heat up, which in turn causes the bearing to heat up. Under high temperature, the grease of the bearing will dry up, or even carbonize and lose its lubrication effect, which will eventually cause the bearing to rotate unsmoothly. In severe cases, it will get stuck and stop rotating, and no longer rotate relatively. The furnace pipe in normal operation keeps rotating, which will cause the furnace pipe to drive the stuck adapter and the outlet pipe to rotate together, twisting the outlet pipe into a knot or even breaking it, thus causing a hydrogen leakage accident. Utility Model Content

[0004] The utility model aims to overcome the defects and shortcomings of the prior art and to provide a reduction furnace gas pipe adapter anti-rotation device to prevent the gas outlet pipe from rotating with the furnace pipe, thereby ensuring the safety of the reduction furnace.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A gas pipe adapter anti-rotation device for a reduction furnace comprises a furnace body, a furnace pipe, an air outlet pipe and an adapter, the adapter comprising a rotating part and a stationary part coaxially connected by a bearing, the rotating part is connected to the furnace pipe and rotates with the furnace pipe, and the stationary part is connected to the air outlet pipe, and is characterized in that: a anti-rotation member is installed on the outer wall of the furnace body on the side facing the adapter, the anti-rotation member comprises a vertical plate, the bottom edge of the vertical plate is provided with an inverted U-shaped limit groove extending upward, and the inner walls on both sides of the inverted U-shaped limit groove respectively correspond to the outer walls on both sides of the stationary part for contacting, so as to constrain the stationary part.

[0007] Furthermore, the anti-rotation member also includes a base, a transverse mounting plate and an L-shaped connecting seat, the base is fixedly mounted on the outer wall of the furnace body on one side facing the adapter, the transverse mounting plate is fixedly connected to the base, the transverse part of the L-shaped connecting seat is fixedly mounted on the transverse mounting plate, and the vertical plate is fixedly mounted on the vertical part of the L-shaped connecting seat.

[0008] Furthermore, the installation position of the transverse portion of the L-shaped connecting seat on the transverse mounting plate and the installation position of the vertical plate on the vertical portion of the L-shaped connecting seat are both adjustable.

[0009] Furthermore, waist-shaped through holes are provided on the horizontal mounting plate and the vertical part of the L-shaped connecting seat, and countersunk holes are provided on the horizontal part and the vertical plate of the L-shaped connecting seat, and bolts pass through the corresponding countersunk holes and waist-shaped through holes in sequence and extend out, and locking nuts are screwed on the extended ends of the bolts. The locking nuts are tightened to fix the horizontal part and the vertical plate of the L-shaped connecting seat to the horizontal mounting plate and the vertical part of the L-shaped connecting seat respectively.

[0010] Furthermore, the stationary part is provided with flat square parts on two opposite outer walls.

[0011] Furthermore, the inner walls on both sides of the inverted U-shaped limiting groove are in contact with the flat square parts on both sides respectively.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model installs a rotation-stopping piece on the outer wall of one side of the furnace body, which can restrain the stationary part of the adapter from rotating. Even if the high temperature causes the bearing to rotate poorly or even get stuck, it can prevent the air outlet pipe from rotating together with the furnace pipe, avoiding the air outlet pipe from being twisted or even broken, and ensuring the safe use of the reduction furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure of the utility model is shown in FIG. Figure 1 .

[0015] Figure 2 for Figure 1 Schematic diagram of the enlarged structure of part A.

[0016] Figure 3 The structure of the utility model is shown in FIG. Figure 2 .

[0017] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of part B. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4 A gas pipe adapter anti-rotation device for a reduction furnace includes a furnace body 1, a furnace pipe 2, an air outlet pipe 3 and an adapter 4. The adapter 4 includes a rotating part 41 and a stationary part 42 coaxially connected by a bearing (not shown in the figure). The rotating part 41 is connected to the furnace pipe 2 and rotates with the furnace pipe 2. The stationary part 42 is connected to the air outlet pipe 3. A anti-rotation member 5 is installed on the outer wall of the furnace body 1 on the side facing the adapter. The anti-rotation member 5 includes a vertical plate 51. The bottom edge of the vertical plate 51 is provided with an inverted U-shaped limiting groove 52 extending upward. The inner walls on both sides of the inverted U-shaped limiting groove 52 respectively contact the outer walls on both sides of the stationary part 42 for constraining the stationary part 42.

[0020] In the utility model, the anti-rotation component 5 also includes a base 53, a horizontal mounting plate 54 and an L-shaped connecting seat 55. The base 53 is fixedly mounted on the outer wall of the furnace body 1 on one side facing the adapter 4, the horizontal mounting plate 54 is fixedly connected to the base 53, the horizontal part of the L-shaped connecting seat 55 is fixedly mounted on the horizontal mounting plate 54, and the vertical plate 51 is fixedly mounted on the vertical part of the L-shaped connecting seat 55, so as to fix the vertical plate 51 on the outer wall of the furnace body 1 on one side facing the adapter 4.

[0021] In the present invention, the installation position of the transverse portion of the L-shaped connecting seat 55 on the transverse mounting plate 54 and the installation position of the vertical plate 51 on the vertical portion of the L-shaped connecting seat 55 are both adjustable.

[0022] Specifically, waist-shaped through holes 6 are provided on the horizontal mounting plate 54 and the vertical part of the L-shaped connecting seat 55, and countersunk holes (not shown in the figure) are provided on the horizontal part of the L-shaped connecting seat 55 and the vertical plate 51. Bolts 7 pass through the corresponding countersunk holes and waist-shaped through holes 6 in sequence and extend out, and a locking nut 8 is screwed on the extended end of the bolt 7.

[0023] Therefore, by tightening the locking nut 7 so that it abuts against the lower surface of the horizontal mounting plate 54 and the outer surface of the vertical part of the L-shaped connecting seat 55, the horizontal part of the L-shaped connecting seat 55 and the vertical plate 51 are respectively fixed to the horizontal mounting plate 54 and the vertical part of the L-shaped connecting seat 55.

[0024] In addition, by loosening the locking nut 7, the lateral part of the L-shaped connecting seat 55 can be moved laterally and the vertical plate 51 can be moved vertically along the waist-shaped through hole 6, so as to adjust the installation position of the lateral part of the L-shaped connecting seat 55 on the lateral mounting plate 54, and the installation position of the vertical plate 51 on the vertical part of the L-shaped connecting seat 55.

[0025] In the present invention, the stationary portion 42 is provided with flat square portions 43 on two opposite outer walls.

[0026] In the present invention, the inner walls on both sides of the inverted U-shaped limiting groove 52 are in contact with the flat square portions 43 on both sides respectively, so as to play a better restraining role.

[0027] The utility model is further described below in conjunction with the accompanying drawings:

[0028] When in use, the installation position of the lateral part of the L-shaped connecting seat 55 on the lateral mounting plate 54 and the installation position of the vertical plate 51 on the vertical part of the L-shaped connecting seat 55 are adjusted according to the lateral and longitudinal distances of the stationary part 42 relative to the base 53.

[0029] After adjustment, the inner walls on both sides of the inverted U-shaped limit groove 52 are in contact with the flat square parts 43 on both sides respectively, which can restrain the stationary part 42 of the adapter 4 from rotating. Even if the high temperature causes the bearing to rotate poorly or even get stuck, it can prevent the outlet pipe 3 from rotating with the furnace pipe 2, avoiding the outlet pipe 3 from twisting or even breaking, thereby ensuring the safe use of the reduction furnace.

[0030] It should be noted that during use, the adapter 4 should be water-cooled to ensure that the temperature of the bearing is normal.

[0031] Although this specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0032] Therefore, the above description is only a preferred embodiment of the present application and is not intended to limit the scope of implementation of the present application; that is, all equivalent changes made according to the scope of the claims of the present application are within the protection scope of the claims of the present application.

Claims

1. A gas pipe adapter anti-rotation device for a reduction furnace, comprising a furnace body, a furnace pipe, an air outlet pipe and an adapter, wherein the adapter comprises a rotating part and a stationary part coaxially connected by a bearing, wherein the rotating part is connected to the furnace pipe and rotates with the furnace pipe, and the stationary part is connected to the air outlet pipe, characterized in that: A stopper is installed on the outer wall of the furnace body on one side facing the adapter, and the stopper includes a vertical plate. The bottom edge of the vertical plate is provided with an inverted U-shaped limit groove extending upward, and the inner walls on both sides of the inverted U-shaped limit groove respectively contact with the outer walls on both sides of the stationary part, so as to constrain the stationary part.

2. The gas pipe adapter anti-rotation device of a reduction furnace according to claim 1, characterized in that: The anti-rotation part also includes a base, a transverse mounting plate and an L-shaped connecting seat. The base is fixedly mounted on the outer wall of the furnace body facing the adapter, the transverse mounting plate is fixedly connected to the base, the transverse part of the L-shaped connecting seat is fixedly mounted on the transverse mounting plate, and the vertical plate is fixedly mounted on the vertical part of the L-shaped connecting seat.

3. The anti-rotation device for the gas pipe adapter of a reduction furnace according to claim 2, characterized in that: The installation position of the transverse part of the L-shaped connecting seat on the transverse mounting plate and the installation position of the vertical plate on the vertical part of the L-shaped connecting seat are both adjustable.

4. The anti-rotation device for the gas pipe adapter of a reduction furnace according to claim 3, characterized in that: The horizontal mounting plate and the vertical part of the L-shaped connecting seat are both provided with waist-shaped through holes, and the horizontal part and the vertical plate of the L-shaped connecting seat are both provided with countersunk holes, and bolts pass through the corresponding countersunk holes and waist-shaped through holes in sequence and extend out, and the extended end of the bolt is screwed with a locking nut. The locking nut is tightened to fix the horizontal part and the vertical plate of the L-shaped connecting seat to the horizontal mounting plate and the vertical part of the L-shaped connecting seat respectively.

5. The anti-rotation device for the gas pipe adapter of a reduction furnace according to claim 1, characterized in that: The stationary part is provided with flat square parts on both opposite outer walls.

6. The anti-rotation device for the gas pipe adapter of a reduction furnace according to claim 5, characterized in that: The inner walls on both sides of the inverted U-shaped limiting groove are in contact with the flat square parts on both sides respectively.

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