Roller way water cooling structure for heating furnace

Abstract

The utility model belongs to the field of iron and steel smelting, and discloses a roller way water cooling structure for a heating furnace, which comprises a roller shaft and a roller sleeve, a cavity is arranged in the roller sleeve, a cavity inlet is arranged at one end of the roller sleeve, the roller shaft enters the cavity from the cavity inlet, the roller shaft is a hollow pipe body, a baffle is arranged in the roller shaft along the length direction of the roller shaft, and the baffle is provided with a water inlet. The baffle divides the pipe body into a water inlet pipeline and a water outlet pipeline, a water inlet hole for guiding cooling water into the cavity is formed in the tail end of the water inlet pipeline in the cavity, and a water outlet hole for guiding the cooling water out of the cavity is formed in the pipe wall of the water outlet pipeline located at an inlet of the cavity. Cooling water is guided into the end, away from the inlet of the cavity, of the roller sleeve through the water inlet hole, the cooling water flows into the water outlet pipeline from the water outlet hole located at the inlet of the cavity after the cavity is filled with the cooling water, the cooling water is discharged from the water outlet end after the water outlet pipeline is filled with the cooling water, and a good cooling effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the field of steel smelting, and in particular relates to a roller water cooling structure for a heating furnace. Background Art

[0002] The rollers in the heating furnace work in a high temperature environment all year round. In order to ensure the normal operation of the rollers in the high temperature environment of the heating furnace, on the one hand, the rollers in the furnace are made of high temperature resistant alloys. On the other hand, the rollers are cooled in real time. The cooling effect has a great impact on the service life of the rollers. At present, the rollers in the furnace are composed of two parts: the roller shaft and the roller sleeve, which are welded together. There is a cooling water pipe in the middle of the roller shaft that goes deep into the innermost part of the roller shaft to cool the roller shaft with water. The roller sleeve is then cooled by the cold roller shaft to achieve the cooling of the roller shaft and roller sleeve. This method has a poor cooling effect on the roller sleeve, the surface temperature of the roller sleeve is high, and the wear is fast. The rollers in the furnace need to be redesigned.

[0003] In the prior art, for example, there is a utility model patent with application number: 201820726486.0, which discloses a logistics cooling roller, comprising a roller shaft (1) and a roller (2), wherein the roller (2) is sleeved on the roller shaft (1), and the hollow sandwich structure of the roller (2) encloses a cylindrical internal cavity (8) and an annular cooling cavity (9), and end covers (3) are respectively provided on both sides of the cooling cavity (9), and a reflux cavity (4) is provided inside the end cover (3), and the end cover (3) is sleeved on the roller shaft (1) through a support shaft (5). On the roller shaft (1), a water outlet hole (6) is provided inside the support shaft (5), and the water outlet hole (6) is connected to the reflux chamber (4); a confluence chamber (10) is provided inside the roller shaft (1), and a water inlet hole (11) is provided at the end of the roller shaft (1), and the confluence chamber (10) is connected to the water inlet hole (11); a shunt pipe (12) is provided on the roller shaft (1) to pass through the internal cavity (8) and connect the confluence chamber (10) and the cooling chamber (9). By providing a shunt pipe on the roller shaft to pass through the internal cavity, the confluence chamber and the cooling chamber are connected. Through the shunt pipe, the cooling water is evenly introduced into the cooling chamber, so that the temperature of the entire cooling roller is more uniform, but the shunt pipe of the above structure can only cool part of the cavity and cannot cover the entire cavity, and the above scheme is suitable for cold chain material transportation, but not for high-temperature cooling in filtration, so designing a device that can fully cool the roller sleeve is a clear technical problem that needs to be solved. Summary of the invention

[0004] In view of the above problems, the utility model provides a roller shaft structure capable of completely cooling the roller sleeve. The scheme is as follows:

[0005] A roller water cooling structure for a heating furnace comprises a roller shaft and a roller sleeve, wherein a cavity is provided in the roller sleeve, and a cavity entrance is provided at one end of the roller sleeve, and the roller shaft enters the cavity from the cavity entrance. The roller shaft is a hollow tube body, and a baffle is provided in the roller shaft along its length direction, and the baffle separates the tube body into a water inlet pipe and a water outlet pipe. A water inlet hole for introducing cooling water into the cavity is provided at the end of the water inlet pipe in the cavity, and a water outlet hole for conducting cooling water out of the cavity is provided on the tube wall of the water outlet pipe located at the cavity entrance.

[0006] Furthermore, the cavity is provided with a plurality of first water-blocking plates arranged in sequence along its length direction, the first water-blocking plates are in an annular structure, and a distance is left between the inner side of the annular body of the first water-blocking plates and the roller shaft.

[0007] Furthermore, a plurality of second water-blocking plates are arranged in sequence along the length direction of the roller shaft outside the cavity. The second water-blocking plates are annular structures sleeved on the roller shaft, and a distance is left between the outer side of the second water-blocking plates and the inner wall of the roller sleeve.

[0008] Furthermore, the plurality of first water baffles and the plurality of second water baffles are arranged alternately.

[0009] Furthermore, the first watertight plate and the second watertight plate are both made of hard rubber.

[0010] Furthermore, a first rubber gasket is provided at the inner edge of the first watertight plate, and the first rubber gasket and the cross section of the first watertight plate form a T-shaped structure.

[0011] Furthermore, a second rubber gasket is provided at the outer edge of the second watertight plate, and the second rubber gasket and the cross section of the second watertight plate form a T-shaped structure.

[0012] Compared with the prior art, the advantages of the utility model are as follows:

[0013] 1. The utility model introduces cooling water into the end of the roller sleeve away from the cavity entrance through the water inlet hole. After the cooling water fills the cavity, it flows into the water outlet pipe from the water outlet hole located at the cavity entrance. After the water outlet pipe is filled with cooling water, it is discharged from the water outlet end, which has a good cooling effect.

[0014] 2. The utility model divides the cavity into a plurality of small spaces by the first water baffle and the second water baffle, and each small space has cooling water. When the roller sleeve is squeezed, the inner side of the first water baffle contacts the roller shaft, and the outer side of the second water baffle contacts the inner wall of the roller sleeve. The small space becomes a closed structure, which avoids the discharge of cooling water and allows the cooling water in the small space to continuously absorb the heat of the roller sleeve, thereby improving the cooling effect.

[0015] 3. The utility model arranges the first rubber gasket on the inner side of the first water-blocking plate. When the roller sleeve is squeezed, the first rubber gasket can be in close contact with the outer wall of the roller shaft to improve the sealing effect.

[0016] 4. The utility model arranges a second rubber gasket on the inner side of the second water-blocking plate. When the roller sleeve is squeezed, the second rubber gasket can be in close contact with the inner wall of the roller sleeve to improve the sealing effect.

[0017] 5. The utility model uses the first water-blocking plate and the second water-blocking plate to support the roller sleeve when the roller sleeve is under pressure, thereby preventing the roller sleeve from being deformed significantly. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the roller shaft and roller sleeve of the utility model;

[0019] Figure 2 for Figure 1 A cross-sectional view of

[0020] Figure numerals: 1. roller shaft; 2. roller sleeve; 3. water inlet hole; 4. water outlet hole; 5. cavity; 6. first water barrier; 7. second water barrier; 8. first rubber gasket; 9. second rubber gasket. DETAILED DESCRIPTION

[0021] The technical solution of the utility model will be described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments.

[0022] Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the utility model.

[0023] In the description of the utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances. Example

[0025] like Figure 1 As shown, a roller water cooling structure for a heating furnace includes a roller shaft and a roller sleeve, wherein a cavity is provided in the roller sleeve, and a cavity entrance is provided at one end of the roller sleeve, and the roller shaft enters the cavity from the cavity entrance, and the roller shaft is a hollow tube body, and a baffle is provided in the roller shaft along its length direction, and the baffle separates the tube body into a water inlet pipe and a water outlet pipe, and a water inlet hole for introducing cooling water into the cavity is provided at the end of the water inlet pipe in the cavity, and a water outlet hole for conducting cooling water in the cavity is provided on the tube wall of the water outlet pipe located at the cavity entrance.

[0026] The utility model introduces cooling water into the end of the roller sleeve away from the cavity entrance through the water inlet hole. After the cooling water fills the cavity, it flows into the water outlet pipe from the water outlet hole located at the cavity entrance. After the water outlet pipe is filled with cooling water, it is discharged from the water outlet end, which has a good cooling effect. Example

[0027] like Figure 1 As shown, the cavity is provided with a plurality of first baffles arranged in sequence along the length direction thereof, the first baffles are in an annular structure, and a gap is left between the inner side of the ring body of the first baffle and the roller shaft. The outside of the roller shaft in the cavity is provided with a plurality of second baffles arranged in sequence along the length direction of the roller shaft, the second baffles are in an annular structure sleeved on the roller shaft, and a gap is left between the outer side of the second baffle and the inner wall of the roller sleeve. The first baffles and the plurality of the second baffles are arranged alternately and spaced apart. The first baffles and the second baffles are both made of hard rubber.

[0028] The utility model divides the cavity into multiple small spaces by the first water baffle and the second water baffle, and each small space has cooling water. When the roller sleeve is squeezed, the inner side of the first water baffle contacts the roller shaft, and the outer side of the second water baffle contacts the inner wall of the roller sleeve. The small space becomes a closed structure, which prevents the cooling water from being discharged, and allows the cooling water in the small space to continuously absorb the heat of the roller sleeve, thereby improving the cooling effect. In addition, the utility model supports the roller sleeve by the first water baffle and the second water baffle when the roller sleeve is under pressure, thereby preventing the roller sleeve from being deformed significantly.

[0029] A first rubber gasket is provided at the inner edge of the first watertight plate, and the first rubber gasket and the cross section of the first watertight plate form a T-shaped or Y-shaped structure. When the roller sleeve is squeezed, the first rubber gasket can be in close contact with the outer wall of the roller shaft to improve the sealing effect. A second rubber gasket is provided at the outer edge of the second watertight plate, and the second rubber gasket and the cross section of the second watertight plate form a T-shaped or Y-shaped structure. When the roller sleeve is squeezed, the second rubber gasket can be in close contact with the inner wall of the roller sleeve to improve the sealing effect.

[0030] 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. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of each embodiment of the utility model.

Claims

1. A roller water cooling structure for a heating furnace, comprising a roller shaft and a roller sleeve, wherein a cavity is provided in the roller sleeve, and a cavity entrance is provided at one end of the roller sleeve, and the roller shaft enters the cavity from the cavity entrance, and the roller shaft is a hollow tube body, and a baffle is provided in the roller shaft along its length direction, and the baffle separates the tube body into a water inlet pipe and a water outlet pipe, characterized in that: A water inlet hole for introducing cooling water into the cavity is provided at the end of the water inlet pipe in the cavity, and a water outlet hole for conducting cooling water out of the cavity is provided on the pipe wall of the water outlet pipe at the entrance of the cavity.

2. The roller table water cooling structure for a heating furnace according to claim 1, characterized in that: The cavity is provided with a plurality of first water-blocking plates arranged in sequence along the length direction thereof. The first water-blocking plates are in an annular structure, and a distance is left between the inner side of the annular body of the first water-blocking plates and the roller shaft.

3. The roller water cooling structure for a heating furnace according to claim 2, characterized in that: A plurality of second baffles are arranged in sequence along the length direction of the roller shaft outside the cavity. The second baffles are annular structures sleeved on the roller shaft, and a distance is left between the outer side of the second baffles and the inner wall of the roller sleeve.

4. The roller table water cooling structure for a heating furnace according to claim 3, characterized in that: The plurality of first baffles and the plurality of second baffles are arranged alternately and spaced apart.

5. The roller table water cooling structure for a heating furnace according to claim 4, characterized in that: The first watertight plate and the second watertight plate are both made of hard rubber.

6. The roller table water cooling structure for a heating furnace according to claim 4, characterized in that: A first rubber gasket is provided at the inner edge of the first watertight plate, and the first rubber gasket and the cross section of the first watertight plate form a T-shaped structure.

7. The roller table water cooling structure for a heating furnace according to claim 4, characterized in that: A second rubber gasket is provided at the outer edge of the second watertight plate, and the second rubber gasket and the cross section of the second watertight plate form a T-shaped structure.

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