Annealing furnace for seamless steel pipe production

Abstract

The utility model relates to annealing furnace technical field, concretely relates to a seamless steel tube production is with annealing furnace, including annealing furnace main part, is provided with the discharge roller on the annealing furnace main part, is provided with the liquid collecting groove with the slope in the side of annealing furnace main part close to the discharge roller, the bottom of liquid collecting groove slope is provided with the filter plate, the top of filter plate is provided with the cleaning part for sweeping the impurity particle, through the coordination and cooperation of transmission mechanism, synchronous assembly and guide mechanism, make the cleaning part move along the filter plate, sweep the impurity particle accumulated on the filter plate surface, avoid the impurity particle to accumulate too much, prevent the filter plate from blocking, solved the technical problem that the metal particle or iron oxide that the clean water carried after spraying the steel pipe is easy to accumulate on the filter screen, leads to the filtration area reduction, makes the filter screen filtration efficiency decline, easily causes the annealing furnace overflow.

Description

Technical Field

[0001] This utility model relates to the field of annealing furnace technology, specifically to an annealing furnace for the production of seamless steel pipes. Background Technology

[0002] Annealing furnaces for seamless steel pipe production are used in the steel pipe production process to heat steel pipes to a certain temperature, softening them, eliminating internal stress, and improving their microstructure. The steel pipes pass through the heating zone in the annealing furnace and are gradually heated to the required annealing temperature. The steel pipes are held in the furnace for a certain period of time to ensure uniform internal temperature and allow the internal grains to undergo appropriate changes, eliminating the hardened layer and internal stress generated by cold working. This prevents deformation or cracks in the seamless steel pipes during subsequent processing and reduces the occurrence of defective quality.

[0003] Chinese Patent Publication No. CN219907788U discloses an annealing furnace for producing bearing steel pipes. The furnace body includes a conveying frame extending from its outlet. A row of rotating rods is rotatably mounted on the inner wall of the conveying frame, with a feeding roller mounted on each rod. A water tank is located at the top of the furnace body, and a water spray pipe is connected to the side wall of the water tank. In this invention, the bearing steel pipes processed in the furnace are conveyed via the feeding rollers. An electrically controlled valve is activated to spray clean water stored in the water tank through the water spray pipe, cooling the bearing steel pipes. Simultaneously, the rotating rods drive a fourth bevel gear to rotate. The fourth bevel gear, through a first bevel gear, drives a linkage rod and a second bevel gear to rotate. The second bevel gear, through a third bevel gear, drives a reciprocating screw, causing the movable block to move back and forth, thereby moving the water spray pipe left and right. This allows for lateral reciprocating cooling of the bearing steel pipes, improving the uniformity of cooling.

[0004] The aforementioned patent mentions that the water spray pipe of the annealing furnace for bearing steel pipe production moves left and right, which can perform transverse reciprocating cooling on the bearing steel pipe. The sprayed clean water enters the waste liquid tank through the filter screen for collection, and then the wastewater in the waste liquid tank is discharged. Since the metal particles or iron oxide carried by the clean water after spraying the steel pipe are easy to accumulate on the filter screen, as the particles and oxides on the filter screen gradually accumulate, the filtration area of ​​the filter screen decreases, resulting in a decrease in the filtration efficiency of the filter screen. Water accumulation can easily cause the annealing furnace to overflow. Therefore, we propose an annealing furnace for seamless steel pipe production. Utility Model Content

[0005] To address the aforementioned issues, an annealing furnace for seamless steel pipe production is provided. Through the coordinated operation of a transfer mechanism, a synchronization component, and a guiding mechanism, the cleaning component moves along the filter plate, sweeping away impurities accumulated on the surface of the filter plate and preventing filter plate blockage. This solves the technical problem that metal particles or iron oxide carried by the water after spraying the steel pipe easily accumulate on the filter screen, resulting in a reduction in filtration area, decreased filtration efficiency, and easy overflow of the annealing furnace.

[0006] To address the existing technical problems, this utility model provides an annealing furnace for seamless steel pipe production, including an annealing furnace body, a discharge roller on the annealing furnace body, and a liquid collection tank with a slope on one side of the annealing furnace body near the discharge roller; a filter plate is provided at the bottom of the slope of the liquid collection tank; a cleaning component for sweeping impurity particles is provided above the filter plate; and a displacement system for driving the cleaning component to move along the filter plate is provided on both sides of the annealing furnace body near the cleaning component.

[0007] Preferably, the displacement system includes a synchronization component and a transmission mechanism; the synchronization component is disposed on the discharge roller and is used to transmit the rotational power of the discharge roller; the transmission mechanism is disposed on the synchronization component and the cleaning component and is used to cooperate with the synchronization component to transmit the rotational power of the discharge roller to the cleaning component.

[0008] Preferably, the synchronization component includes a first synchronization wheel, a synchronization belt, and a second synchronization wheel; the first synchronization wheel is rotatably mounted on the annealing furnace body and is connected to the discharge roller; the upper end of the synchronization belt is connected to the first synchronization wheel; the second synchronization wheel is rotatably mounted on the annealing furnace body and is connected to the lower end of the synchronization belt; the second synchronization wheel is connected to both ends of the cleaning component.

[0009] Preferably, the transmission mechanism includes a connecting rod and an elliptical plate; one end of the connecting rod is rotatably mounted on the cleaning component; the elliptical plate is connected to a second synchronous wheel, and one side of the elliptical plate is rotatably connected to the end of the connecting rod away from the cleaning component.

[0010] Preferably, the displacement system further includes a rotating mechanism and a guiding mechanism; the rotating mechanism is disposed on the cleaning component and is used to drive the cleaning component to rotate; the guiding mechanism is also disposed on the cleaning component and is used to assist the cleaning component to move linearly.

[0011] Preferably, the rotating mechanism includes a toothed disc and a toothed plate; one side of the toothed disc is connected to the cleaning component, and the other side of the toothed disc is rotatably connected to the connecting rod; the toothed plate is connected to the filter plate, and the toothed plate is mated with the toothed disc.

[0012] Preferably, the guiding mechanism includes a slider and a guide rod; the slider is rotatably mounted on the gear plate; the guide rod is connected to the filter plate, and the guide rod axially passes through the through hole of the slider and slides with it.

[0013] Preferably, an elastic reset member is sleeved on the guide rod, and the two ends of the elastic reset member are connected to the slider and the guide rod respectively.

[0014] The advantages of this utility model compared to the prior art are:

[0015] 1. Through the coordinated operation of the transmission mechanism, synchronization components and guiding mechanism, the cleaning component moves along the filter plate, sweeping away the impurity particles accumulated on the surface of the filter plate, avoiding excessive accumulation of impurity particles, preventing filter plate blockage, and solving the technical problem that metal particles or iron oxide carried by the water after spraying the steel pipe can easily accumulate on the filter screen, resulting in a reduction in the filtration area, a decrease in the filtration efficiency of the filter screen, and an easy occurrence of overflow in the annealing furnace.

[0016] 2. The cleaning component is driven to rotate by a rotating mechanism, so that the rotation direction of the cleaning component is opposite to the linear movement direction, forming a reverse rolling sweeping motion state. This improves the removal efficiency of impurity particles, reduces the deposition of impurity particles, and solves the technical problem of impurity particles accumulating on the filter plate and being difficult to remove from the filter plate, which leads to a decrease in filtration efficiency. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of the annealing furnace body, the discharge roller, and their connecting structure for an annealing furnace used in the production of seamless steel pipes.

[0018] Figure 2 This is a three-dimensional schematic diagram of the filter plate and cleaning components and their connection structure of an annealing furnace for seamless steel pipe production.

[0019] Figure 3 It is an annealing furnace for seamless steel pipe production. Figure 1 Enlarged diagram of point A in the middle.

[0020] Figure 4 It is an annealing furnace for seamless steel pipe production. Figure 2 Enlarged diagram of point B in the middle.

[0021] Figure 5 It is an annealing furnace for seamless steel pipe production. Figure 2 Enlarged diagram of point C in the middle.

[0022] Figure 6 It is an annealing furnace for seamless steel pipe production. Figure 2 Enlarged diagram of point D in the middle.

[0023] The following are the labels in the diagram: 1. Annealing furnace body; 11. Discharge roller; 2. Liquid collection tank; 21. Filter plate; 22. Cleaning component; 23. First synchronous pulley; 24. Synchronous belt; 25. Second synchronous pulley; 26. Connecting rod; 27. Elliptical plate; 28. Gear disc; 29. ​​Gear plate; 210. Slider; 211. Guide rod; 212. Elastic reset component. Detailed Implementation

[0024] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0025] See Figures 1-2 As shown, an annealing furnace for seamless steel pipe production includes an annealing furnace body 1, a discharge roller 11 is provided on the annealing furnace body 1, and a liquid collection tank 2 with a slope is opened on the side of the annealing furnace body 1 near the discharge roller 11; a filter plate 21 is provided on the bottom of the slope of the liquid collection tank 2; a cleaning component 22 for sweeping impurity particles is provided above the filter plate 21; and a displacement system for driving the cleaning component 22 to move along the filter plate 21 is provided on both sides of the annealing furnace body 1 near the cleaning component 22.

[0026] Specifically, the discharge roller 11 can be equipped with a power drive system, and the discharge roller 11 can actively convey stainless steel pipes. The cleaning component 22 uses a flexible brush that will not damage the filter plate 21 as the implementing element, and the cleaning component 22 maintains elastic contact with the filter plate 21. The annealing furnace body 1 is equipped with a spray system for spraying water to cool the seamless steel pipes.

[0027] When the annealing furnace body 1 sprays water to cool the seamless steel pipe through the spray system, the discharge roller 11 simultaneously conveys the seamless steel pipe out of the annealing furnace body 1. The sprayed water falls into the collection tank 2 and flows directionally to the filter plate 21 through the inclined slope of the collection tank 2. The filter plate 21 intercepts and filters impurities in the water, while the rotational motion of the discharge roller 11 drives the cleaning component 22 to reciprocate along the surface of the filter plate 21 through the displacement system. The elastic contact structure between the cleaning component 22 and the filter plate 21 ensures that mechanical damage to the filter plate 21 is avoided while effectively cleaning impurity particles, thereby maintaining the flow performance of the filter plate 21 and preventing blockage caused by impurity accumulation.

[0028] See Figures 1-6 As shown, the displacement system includes a synchronization component and a transmission mechanism. The synchronization component is mounted on the discharge roller 11 and is used to transmit the rotational power of the discharge roller 11. The transmission mechanism is mounted on the synchronization component and the cleaning component 22 and is used to cooperate with the synchronization component to transmit the rotational power of the discharge roller 11 to the cleaning component 22. The synchronization component includes a first synchronization pulley 23, a synchronization belt 24, and a second synchronization pulley 25. The first synchronization pulley 23 is rotatably mounted on the annealing furnace body 1 and is connected to the discharge roller 11. The upper end of the synchronous belt 24 is connected to the first synchronous pulley 23; the second synchronous pulley 25 is rotatably mounted on the annealing furnace body 1, and the second synchronous pulley 25 is connected to the lower end of the synchronous belt 24. The second synchronous pulley 25 is connected to both ends of the cleaning component 22. The transmission mechanism includes a connecting rod 26 and an elliptical plate 27. One end of the connecting rod 26 is rotatably mounted on the cleaning component 22. The elliptical plate 27 is connected to the second synchronous pulley 25, and one side of the elliptical plate 27 is rotatably connected to the end of the connecting rod 26 away from the cleaning component 22.

[0029] Specifically, the first synchronous pulley 23 and the second synchronous pulley 25 form a meshing transmission pair with the synchronous belt 24.

[0030] When the discharge roller 11 rotates and drives the seamless steel pipe to be conveyed out of the annealing furnace body 1, the discharge roller 11 above the filter plate 21 drives the first synchronous wheel 23 to rotate synchronously. Through the meshing transmission of the first synchronous wheel 23, the second synchronous wheel 25 and the synchronous belt 24, the first synchronous wheel 23 drives the second synchronous wheel 25 to rotate, which in turn causes the second synchronous wheel 25 to drive the elliptical plate 27 to rotate. During the rotation of the elliptical plate 27, the cleaning component 22 is pulled by the connecting rod 26. At the same time, the cleaning component 22 moves linearly under the constraint of the guide mechanism, realizing the cyclic reciprocating movement of the cleaning component 22 on the upper side of the filter plate 21. This allows the cleaning component 22 to effectively remove the metal particles, oxides and other large particulate impurities accumulated on the surface of the filter plate 21, maintaining the permeability of the filter plate 21.

[0031] See Figures 2-6 As shown, the displacement system also includes a rotating mechanism and a guiding mechanism. The rotating mechanism is mounted on the cleaning component 22 and is used to drive the cleaning component 22 to rotate. The guiding mechanism is also mounted on the cleaning component 22 and is used to assist the cleaning component 22 in linear movement. The rotating mechanism includes a toothed disc 28 and a toothed plate 29. One side of the toothed disc 28 is connected to the cleaning component 22, and the other side of the toothed disc 28 is rotatably connected to the connecting rod 26. The toothed plate 29 is connected to the filter plate 21 and is mated with the toothed disc 28. The guiding mechanism includes a slider 210 and a guide rod 211. The slider 210 is rotatably mounted on the toothed disc 28. The guide rod 211 is connected to the filter plate 21 and axially passes through the through hole of the slider 210 and slides with it. An elastic reset member 212 is sleeved on the guide rod 211, and the two ends of the elastic reset member 212 are connected to the slider 210 and the guide rod 211, respectively.

[0032] Specifically, the gear disc 28 and the gear plate 29 form a meshing transmission pair. The slider 210 and the guide rod 211 form a sliding pair with clearance fit. The elastic reset element 212 uses a spring as the implementing element.

[0033] When the elliptical plate 27 rotates, the connecting rod 26 drives the geared disc 28 and the slider 210 to move synchronously, causing the cleaning component 22 to reciprocate linearly on the upper side of the filter plate 21. During this process, the slider 210 slides linearly along the guide rod 211. The clearance fit between the inner wall of the slider 210 and the guide rod 211 ensures the stability of the linear motion of the cleaning component 22 and the geared disc 28. When the slider 210 moves, it applies a compressive load to the elastic reset component 212, causing the elastic reset component 212 to undergo elastic deformation. The restoring force generated by the elastic reset component 212 provides auxiliary driving force for the reciprocating motion of the slider 210, effectively reducing the risk of jamming of the sliding pair.

[0034] During its linear movement, the toothed disc 28 generates rotational motion through meshing with the toothed plate 29, which in turn drives the cleaning component 22 to rotate synchronously. The rotation direction of the cleaning component 22 is opposite to the linear movement direction, forming a reverse rolling sweeping motion. This creates a relative speed difference between the brush and the surface of the filter plate 21, generating shear friction and improving the removal efficiency of impurity particles. At the same time, the centrifugal force generated by the reverse rolling sweeping promotes the migration of impurity particles to the outside of the cleaning area, reducing the deposition of impurity particles and ensuring a continuous cleaning effect on the surface of the filter plate 21.

[0035] Working principle: When the annealing furnace body 1 sprays water to cool the seamless steel pipe through the spray system, the discharge roller 11 simultaneously conveys the seamless steel pipe out of the annealing furnace body 1. At this time, the filter plate 21 intercepts and filters the impurities in the water. Meanwhile, the cleaning component 22 moves back and forth on the upper side of the filter plate 21. The cleaning component 22 rotates and moves in a straight line along the surface of the filter plate 21. While cleaning the impurity particles, it avoids mechanical damage to the filter plate 21 and maintains the flowability of the filter plate 21. The rotation direction of the cleaning component 22 is opposite to the direction of the straight line movement, which improves the peeling efficiency of impurity particles, reduces the deposition of impurity particles, and ensures the continuous cleaning effect of the filter plate (21) surface.

[0036] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. An annealing furnace for seamless steel pipe production, comprising an annealing furnace body (1), wherein a discharge roller (11) is provided on the annealing furnace body (1), characterized in that, The annealing furnace body (1) has a liquid collection tank (2) with a slope on the side near the discharge roller (11); A filter plate (21) is installed on the bottom of the slope of the liquid collection tank (2); A cleaning element (22) for sweeping up impurity particles is provided above the filter plate (21); The annealing furnace body (1) is provided with displacement systems on both sides near the cleaning component (22) for driving the cleaning component (22) to move along the filter plate (21).

2. The annealing furnace for seamless steel pipe production according to claim 1, characterized in that, The displacement system includes a synchronization component and a transmission mechanism; The synchronization component is set on the discharge roller (11) and is used to transmit the rotational power of the discharge roller (11); The transmission mechanism is set on the synchronization component and the cleaning component (22). The transmission mechanism is used to cooperate with the synchronization component to transmit the rotational power of the discharge roller (11) to the cleaning component (22).

3. An annealing furnace for seamless steel pipe production according to claim 2, characterized in that, The synchronization component includes a first synchronization pulley (23), a synchronization belt (24), and a second synchronization pulley (25); The first synchronous wheel (23) is rotatably mounted on the annealing furnace body (1), and the first synchronous wheel (23) is connected to the discharge roller (11); The upper end of the synchronous belt (24) is connected to the first synchronous pulley (23); The second synchronous wheel (25) is rotatably mounted on the annealing furnace body (1). The second synchronous wheel (25) is connected to the lower end of the synchronous belt (24). The second synchronous wheel (25) is connected to both ends of the cleaning component (22).

4. An annealing furnace for seamless steel pipe production according to claim 2, characterized in that, The transmission mechanism includes a connecting rod (26) and an elliptical plate (27); One end of the connecting rod (26) is rotatably mounted on the cleaning component (22); The elliptical plate (27) is connected to the second synchronous wheel (25), and one side of the elliptical plate (27) is rotatably connected to the end of the connecting rod (26) away from the cleaning component (22).

5. An annealing furnace for seamless steel pipe production according to claim 2, characterized in that, The displacement system also includes a rotating mechanism and a guiding mechanism; A rotating mechanism is provided on the cleaning component (22), and the rotating mechanism is used to drive the cleaning component (22) to rotate. A guiding mechanism is also provided on the cleaning component (22), which is used to assist the cleaning component (22) in linear movement.

6. An annealing furnace for seamless steel pipe production according to claim 5, characterized in that, The rotating mechanism includes a gear disk (28) and a gear plate (29); One side of the toothed disc (28) is connected to the cleaning component (22), and the other side of the toothed disc (28) is rotatably connected to the connecting rod (26); The toothed plate (29) is connected to the filter plate (21), and the toothed plate (29) is connected to the toothed disc (28).

7. An annealing furnace for seamless steel pipe production according to claim 5, characterized in that, The guiding mechanism includes a slider (210) and a guide rod (211); The slider (210) is rotatably mounted on the gear plate (28); The guide rod (211) is connected to the filter plate (21), and the guide rod (211) passes through the through hole of the slider (210) axially and slides with it.

8. An annealing furnace for seamless steel pipe production according to claim 5, characterized in that, An elastic reset member (212) is sleeved on the guide rod (211), and the two ends of the elastic reset member (212) are connected to the slider (210) and the guide rod (211) respectively.

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