Vertical annealing furnace

Abstract

The utility model relates to the technical field of annealing furnaces, in particular to a vertical annealing furnace which comprises an annealing furnace body, furnace rollers are rotationally connected to the two sides of the back face of the inner wall of the annealing furnace body respectively, and a cleaning mechanism is arranged in the annealing furnace body and located between the furnace rollers. After the steel belt is arranged on the outer walls of the two sets of furnace rollers in a sleeving mode, the steel belt is comprehensively heated through rotation of the furnace rollers and movement of the steel belt, iron powder attached to the outer walls of the furnace rollers is conveniently scraped in the mode that the arc-shaped scraping plates are attached to the outer walls of the furnace rollers while the furnace rollers rotate for machining treatment, and therefore nodules caused by excessive accumulation of the iron powder on the outer walls of the furnace rollers are avoided; therefore, defects such as indentations, scratches and pits on the surface of the product are caused, and the quality of the product is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of annealing furnaces, in particular to a vertical annealing furnace. Background Art

[0002] Annealing furnace is the key equipment of continuous hot-dip galvanizing and continuous annealing production line of strip steel. Its main function is to eliminate the work hardening of raw materials after cold rolling, so that the strip steel can complete the recrystallization annealing process in the furnace. The rolling iron powder brought into the furnace due to poor cleaning effect before use is the main raw material for the formation of roller surface nodules. At the same time, when the furnace roller is in use, it will also wear the coating of the furnace roller itself, resulting in multiple pits that are easy to accumulate iron powder. After the production line runs for a certain period of time, nodules will appear on the surface of the furnace roller, resulting in defects such as indentations, scratches, and pitting on the product surface, affecting product quality.

[0003] Prior art, such as publication number CN218372438U, provides a vertical annealing furnace, comprising a furnace body, a plurality of furnace rollers, a plurality of pressure rollers, a drive assembly, a spray assembly and a washing assembly. One end of the furnace roller is rotatably connected to the furnace body, and the other end passes through the furnace body and is rotatably connected to the side wall of the furnace body. The pressure rollers are rotatably connected to the upper and lower ends of the inlet and outlet of the furnace body respectively. The drive assembly is fixedly connected to one side of the furnace body, and a washing assembly is slidably connected inside the other side of the furnace body. The spray assembly is fixedly connected to the top of the furnace body, and the spray end of the spray assembly passes through the side wall of the furnace body. The bevel gear set cooperates with the transmission wheel belt to ensure that the speeds of all furnace rollers in the converter are uniform, which greatly reduces the friction between the strip and the furnace rollers and ensures the matching between the furnace roller speed and the strip speed.

[0004] The solution uses a spray component and a washing component to effectively treat the iron powder adhering to the surface of the furnace roller before use, reducing the possibility of roller surface nodules and greatly improving the quality of the product. However, the spray component and the washing component are used together, which results in the need to completely dry the annealing furnace before subsequent use, which is more troublesome, thus affecting the efficiency of the annealing furnace and reducing work efficiency. In view of this, we propose a vertical annealing furnace. Utility Model Content

[0005] The utility model aims to provide a vertical annealing furnace, which solves the problem that the annealing furnace needs to be completely dried before use after cleaning, which affects the use efficiency of the annealing furnace.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A vertical annealing furnace, comprising an annealing furnace body, wherein furnace rollers are rotatably connected to the positions of both sides of the back side of the inner wall of the annealing furnace body, and a cleaning mechanism is arranged between the furnace rollers inside the annealing furnace body;

[0008] The cleaning mechanism includes an arc-shaped scraper, which is respectively attached to one side corresponding to the outer wall of the furnace roller. Since the steel belt is sleeved on the outer walls of the two groups of furnace rollers, it is fully heated by the rotating steel belt movement of the furnace roller. While the furnace roller rotates for processing, the arc-shaped scraper is attached to the outer wall of the furnace roller to facilitate scraping off the iron powder adhered to the outer wall of the furnace roller, so as to avoid excessive accumulation of iron powder on the outer wall of the furnace roller and the formation of nodules, thereby causing defects such as indentations, scratches, and pitting on the product surface, affecting product quality.

[0009] Preferably, the cleaning mechanism includes a support plate, which is fixedly connected to the back side of the inner wall of the annealing furnace body, and both sides of the support plate are connected to a bevel guide frame through connecting columns, and one side above the bevel guide frame is fixedly connected to the arc scraper.

[0010] Preferably, the cleaning mechanism includes a collecting port, which is opened at a position where the inclined guide frame is below the arc scraper, a discharge port is opened at the bottom of the inclined surface of the inclined guide frame, and a discharge frame is provided below the discharge port. The scraped iron powder is collected through the set collecting port and falls into the inclined guide frame, and then the iron powder slides to the bottom of the discharge port through the inclined surface of the inclined guide frame.

[0011] Preferably, an inclined plate is fixedly connected to the bottom of the discharge frame, and the discharge frame extends to the front of the front of the furnace roller. The iron powder discharged from the discharge port is received by the discharge frame, and then the iron powder is made to slide out of the interior of the steel strip through the inclined surface of the inclined plate to avoid being adsorbed on the inner wall of the steel strip or the outer wall of the furnace roller.

[0012] Preferably, the height of the bottom of the arc scraper is consistent with the height of the axis of the furnace roller, the height of the collecting port is lower than the height of the axis of the furnace roller, and the length of the protruding part of the collecting port on the side of the inclined guide frame is longer than the length of the protruding part of the arc scraper. By setting the position of the collecting port to protrude more than the arc scraper, it is convenient for the collecting port to collect the scraped iron powder.

[0013] Preferably, a placement groove is provided at the front bottom position of the inner wall of the annealing furnace body, and a collection frame is slidably connected to the inner wall of the placement groove. A sealing door is hinged on the front of the annealing furnace body, and a handle is fixedly connected to the sealing door. The collection frame is provided to facilitate the collection of the scraped and fallen iron powder, so that the collection frame can be conveniently pulled out of the placement groove, so that the collected iron powder can be conveniently processed in a centralized manner.

[0014] Preferably, a motor is fixedly connected to the back side of the outer wall of the annealing furnace body, and a rotating shaft at the output end of the motor is fixedly connected to the first bevel gear, one side of the first bevel gear is meshedly connected to the second bevel gear, the inner wall of the second bevel gear is fixedly connected to a rotating rod, and the outer wall of the rotating rod is rotatably connected to a support block, and the support block is fixedly connected to the back side of the outer wall of the annealing furnace body, the two ends of the rotating rod are respectively fixedly connected to the third bevel gear, and the directions of the third bevel gears at both ends are consistent, and one side of the third bevel gear is meshedly connected to the fourth bevel gear, and the fourth bevel gear passes through the back side of the annealing furnace body through the rotating shaft and is fixedly connected to one end of a furnace roller at a corresponding position inside, and the gears are arranged to rotate synchronously in the same direction to facilitate driving the two groups of furnace rollers to rotate in the same direction and at the same speed, so as to avoid the situation where the furnace rollers rotate at inconsistent speeds, resulting in friction and scratches between the furnace rollers and the inner wall of the steel strip.

[0015] By means of the above technical solution, the utility model provides a vertical annealing furnace.

[0016] Beneficial effects:

[0017] 1. In the utility model, since the steel belt is sleeved behind the outer walls of two groups of furnace rollers, the outer walls of the furnace rollers are fully heated by the rotating steel belt movement of the furnace rollers. While the furnace rollers are rotating for processing, the arc-shaped scraper is attached to the outer walls of the furnace rollers to facilitate scraping off the iron powder adhering to the outer walls of the furnace rollers, so as to avoid excessive accumulation of iron powder on the outer walls of the furnace rollers and the formation of nodules, thereby causing defects such as indentations, scratches, and pitting on the product surface, affecting the product quality.

[0018] 2. The utility model arranges the gears to rotate synchronously in the same direction, so as to facilitate driving two groups of furnace rollers to rotate in the same direction and at the same speed, so as to avoid the situation that the rotation speed of the furnace rollers is inconsistent, resulting in scratches caused by friction between the furnace rollers and the inner wall of the steel strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a back view of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the cleaning mechanism in the utility model;

[0023] Figure 4 It is a structural schematic diagram of the arc scraper in the utility model.

[0024] In the figure: 1. annealing furnace body; 11. sealing door; 12. handle; 13. placement groove; 14. collection frame; 2. cleaning mechanism; 21. support plate; 211. connecting column; 22. inclined guide frame; 221. discharge port; 23. arc scraper; 24. collection port; 25. discharge frame; 26. inclined plate; 3. furnace roller; 31. motor; 32. first bevel gear; 33. second bevel gear; 34. rotating rod; 341. support block; 35. third bevel gear; 36. fourth bevel gear. DETAILED DESCRIPTION

[0025] 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.

[0026] Example 1

[0027] A vertical annealing furnace, such as Figure 1 - Figure 4As shown, it includes an annealing furnace body 1, and furnace rollers 3 are rotatably connected to the positions on both sides of the back side of the inner wall of the annealing furnace body 1, and a cleaning mechanism 2 is arranged between the furnace rollers 3 inside the annealing furnace body 1; the cleaning mechanism 2 includes an arc scraper 23, and the arc scraper 23 is respectively attached to the corresponding side of the outer wall of the furnace roller 3. Since the steel belt is sleeved on the outer walls of the two groups of furnace rollers 3, it is fully heated by the rotating steel belt movement of the furnace roller 3. While the furnace roller 3 rotates for processing, the arc scraper 23 is attached to the outer wall of the furnace roller 3 to facilitate The iron powder adhered to the outer wall of the furnace roller 3 is scraped off to avoid excessive accumulation of iron powder on the outer wall of the furnace roller 3, thereby causing defects such as indentations, scratches, and pitting on the product surface, which affects the product quality. The cleaning mechanism 2 includes a support plate 21, and the support plate 21 is fixedly connected to the back of the inner wall of the annealing furnace body 1. The two sides of the support plate 21 are respectively connected to the inclined guide frame 22 through the connecting column 211, and the upper side of the inclined guide frame 22 is fixedly connected to the arc scraper 23. The cleaning mechanism 2 includes a collecting port 24, and the collecting port 24 is opened on the inclined surface. The guide frame 22 is located below the arc-shaped scraper 23. A discharge port 221 is provided at the bottom of the inclined surface of the inclined guide frame 22. A discharge frame 25 is provided below the discharge port 221. The scraped iron powder is collected through the collection port 24 and falls into the inclined guide frame 22. The iron powder is then slid into the bottom of the discharge port 221 through the inclined surface of the inclined guide frame 22. An inclined plate 26 is fixedly connected to the bottom of the discharge frame 25. The discharge frame 25 extends to the front of the front of the furnace roller 3. The discharge port 221 is connected to the discharge frame 25. The discharged iron powder is then slid out of the inside of the steel strip through the inclined surface of the inclined plate 26 to avoid being adsorbed on the inner wall of the steel strip or the outer wall of the furnace roller 3. The height of the bottom of the arc scraper 23 is consistent with the height of the axis of the furnace roller 3, the height of the collecting port 24 is lower than the height of the axis of the furnace roller 3, and the length of the protruding part of the collecting port 24 on the side of the inclined guide frame 22 is longer than the length of the protruding part of the arc scraper 23. By setting the position of the collecting port 24 to protrude more than the arc scraper 23, it is convenient for the collecting port 24 to collect the scraped iron powder.

[0028] In the present embodiment, since the steel belt is sleeved on the outer walls of the two groups of furnace rollers 3, the steel belt is rotated to heat the steel belt comprehensively. While the furnace rollers 3 are rotating for processing, the arc-shaped scraper 23 is attached to the outer walls of the furnace rollers 3 to facilitate scraping off the iron powder adhering to the outer walls of the furnace rollers 3, so as to avoid excessive accumulation of iron powder on the outer walls of the furnace rollers 3 and the formation of nodules. The scraped iron powder is collected by the provided collecting port 24 and falls into the inclined guide frame 22. The inclined surface of the inclined guide frame 22 is used to make the iron powder slide to the bottom of the discharge port 221. The iron powder discharged from the discharge port 221 is received by the discharge frame 25, and the iron powder is made to slide out of the inner position of the steel belt by the inclined surface of the inclined plate 26 to avoid being adsorbed on the inner wall of the steel belt or the outer wall of the furnace roller 3.

[0029] Example 2

[0030] like Figure 2 As shown, a placement groove 13 is provided at the front position of the bottom of the inner wall of the annealing furnace body 1, and a collecting frame 14 is slidably connected to the inner wall of the placement groove 13. A sealing door 11 is hinged on the front of the annealing furnace body 1, and a handle 12 is fixedly connected to the sealing door 11. The collection frame 14 is provided to facilitate the collection of scraped and slipped iron powder, so that the collection frame 14 can be conveniently pulled out of the placement groove 13 to facilitate centralized processing of the collected iron powder. A motor 31 is fixedly connected to the back of the outer wall of the annealing furnace body 1, and the output end shaft of the motor 31 is fixedly connected to the first bevel gear 32, and one side of the first bevel gear 32 is meshedly connected to the second bevel gear 33, and the inner wall of the second bevel gear 33 is fixedly connected to a rotating rod 34, and the outer wall of the rotating rod 34 is rotatably connected to a support block 341, and the support block 341 is rotatably connected to the outer wall of the annealing furnace body 1 The back of the annealing furnace body 1 is fixedly connected, and the two ends of the rotating rod 34 are respectively fixedly connected with the third bevel gears 35, and the directions of the third bevel gears 35 at the two ends are consistent. One side of the third bevel gear 35 is meshed with the fourth bevel gear 36. The fourth bevel gear 36 passes through the back of the annealing furnace body 1 through the rotating shaft and is fixedly connected to one end of the furnace roller 3 at the corresponding position inside. The first bevel gear 32 is driven to rotate by the starting motor 31, and the third bevel gears 35 at both ends of the rotating rod 34 are driven to rotate through the meshing second bevel gear 33. The meshing fourth bevel gear 36 is used to facilitate the two groups of furnace rollers 3 to rotate in the same direction and at the same speed. By setting the synchronous and same-direction rotation mode of the gears, it is convenient to drive the two groups of furnace rollers 3 to rotate in the same direction and at the same speed, so as to avoid the situation where the rotation speed of the furnace rollers 3 is inconsistent, resulting in friction between the furnace rollers 3 and the inner wall of the steel strip to cause scratches.

[0031] In this embodiment, a collection frame 14 is provided to facilitate the collection of scraped and fallen iron powder, so that the collection frame 14 can be pulled out of the placement groove 13 to facilitate centralized processing of the collected iron powder. The first bevel gear 32 is driven to rotate by the starting motor 31, and the third bevel gears 35 at both ends of the rotating rod 34 are driven to rotate by the meshing second bevel gear 33. The two groups of furnace rollers 3 are driven to rotate in the same direction and at the same speed by the meshing fourth bevel gear 36.

[0032] When the vertical annealing furnace of the utility model is in use, the steel belt is sleeved on the outer wall of two groups of furnace rollers 3, the first bevel gear 32 is driven to rotate by the starting motor 31, the third bevel gears 35 at both ends of the rotating rod 34 are driven to rotate by the meshing second bevel gear 33, and the two groups of furnace rollers 3 are driven to rotate in the same direction and at the same speed by the meshing fourth bevel gear 36. After the steel belt is sleeved on the outer wall of the two groups of furnace rollers 3, the furnace rollers 3 are fully heated by the rotating steel belt movement. While the furnace rollers 3 are rotating for processing, the arc-shaped scraper 23 is attached to the outer wall of the furnace roller 3 to facilitate the scraping of iron powder adhered to the outer wall of the furnace roller 3. , to avoid excessive accumulation of iron powder on the outer wall of the furnace roller 3 and the formation of nodules, and the scraped iron powder is collected through the set collecting port 24, so that it falls into the inclined guide frame 22, and then the iron powder is made to slide under the discharge port 221 through the inclined surface of the inclined guide frame 22, and then the iron powder discharged from the discharge port 221 is received by the discharge frame 25, and the iron powder is made to slide out of the position inside the steel strip through the inclined surface of the inclined plate 26 to avoid being adsorbed on the inner wall of the steel strip or the outer wall of the furnace roller 3, and the scraped and slid iron powder is conveniently collected through the set collecting frame 14, so that the collecting frame 14 can be conveniently pulled out of the placement groove 13, so as to facilitate the centralized processing of the collected iron powder.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vertical annealing furnace, comprising an annealing furnace body (1), characterized in that: Furnace rollers (3) are rotatably connected to the positions on both sides of the back side of the inner wall of the annealing furnace body (1), and a cleaning mechanism (2) is provided between the furnace rollers (3) inside the annealing furnace body (1); The cleaning mechanism (2) comprises an arc-shaped scraper (23), and the arc-shaped scraper (23) is respectively attached to one side corresponding to the outer wall of the furnace roller (3). The cleaning mechanism (2) comprises a support plate (21), and the support plate (21) is fixedly connected to the back side of the inner wall of the annealing furnace body (1). Both sides of the support plate (21) are respectively connected to an inclined guide frame (22) through a connecting column (211), and the upper side of the inclined guide frame (22) is fixedly connected to the arc-shaped scraper (23).

2. A vertical annealing furnace according to claim 1, characterized in that: The cleaning mechanism (2) comprises a collecting port (24), the collecting port (24) being arranged at a position of the inclined surface guide frame (22) below the arc-shaped scraper (23), a discharge port (221) being arranged at the bottom of the inclined surface of the inclined surface guide frame (22), and a discharge frame (25) being arranged below the discharge port (221).

3. A vertical annealing furnace according to claim 2, characterized in that: The bottom of the discharge frame (25) is fixedly connected with an inclined plate (26), and the discharge frame (25) extends to the front of the front of the furnace roller (3).

4. A vertical annealing furnace according to claim 2, characterized in that: The height of the bottom of the arc scraper (23) is consistent with the height of the axis of the furnace roller (3), the height of the collecting port (24) is lower than the height of the axis of the furnace roller (3), and the length of the protruding portion of the collecting port (24) on one side of the inclined guide frame (22) is longer than the length of the protruding portion of the arc scraper (23).

5. A vertical annealing furnace according to claim 1, characterized in that: A placement groove (13) is provided at the front position of the bottom inner wall of the annealing furnace body (1), and a collection frame (14) is slidably connected to the inner wall of the placement groove (13). A sealing door (11) is hingedly connected to the front of the annealing furnace body (1), and a handle (12) is fixedly connected to the sealing door (11).

6. A vertical annealing furnace according to claim 1, characterized in that: A motor (31) is fixedly connected to the back side of the outer wall of the annealing furnace body (1); a first bevel gear (32) is fixedly connected to the output end shaft of the motor (31); a second bevel gear (33) is meshingly connected to one side of the first bevel gear (32); a rotating rod (34) is fixedly connected to the inner wall of the second bevel gear (33); a supporting block (341) is rotatably connected to the outer wall of the rotating rod (34); and the supporting block (341) is fixedly connected to the back side of the outer wall of the annealing furnace body (1).

7. A vertical annealing furnace according to claim 6, characterized in that: The two ends of the rotating rod (34) are respectively fixedly connected with third bevel gears (35), and the directions of the third bevel gears (35) at the two ends are consistent. One side of the third bevel gear (35) is meshingly connected with a fourth bevel gear (36). The fourth bevel gear (36) passes through the back side of the annealing furnace body (1) through a rotating shaft and is fixedly connected to one end of a furnace roller (3) at a corresponding position inside.

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