A sintering furnace slag cleaning mechanism

Abstract

The utility model discloses a sintering furnace slag cleaning mechanism, including mounting bracket, and mounting bracket includes left side mounting board frame and right side sandwich mounting board frame, still includes airflow through component and airflow reversing component, airflow through component: it includes inner sleeve, guide bulge, inner tube exhaust port, outer sleeve, outer tube exhaust port, the right side wall of left side mounting board frame is connected with the symmetry rotation of inner sleeve before and after, and the outer camber surface of inner sleeve is equipped with the evenly distributed inner tube exhaust port, and the outer camber surface of inner sleeve is equipped with the evenly distributed guide bulge, and the outer camber surface movable sleeve of inner sleeve is equipped with outer sleeve, and the outer camber surface of outer sleeve is equipped with the evenly distributed outer tube exhaust port, and the right end of inner sleeve is equipped with right side sandwich mounting board frame, airflow reversing component: its setting in the upside of airflow through component, airflow through component still includes swivel joint, this sintering furnace slag cleaning mechanism, can clean up each corner of furnace wall, prevent boron nitride agglomerate.

Description

Technical Field

[0001] This utility model relates to the field of boron nitride sintering furnace slag cleaning technology, specifically a sintering furnace slag cleaning mechanism. Background Technology

[0002] A boron nitride sintering furnace is a specialized device that enables boron nitride powder compacts to obtain the required physical and mechanical properties and microstructure through sintering. It converts electrical energy or other forms of energy into heat energy through heating elements, so that the boron nitride powder or compacts in the furnace reach the required sintering temperature. However, a large amount of slag is generated in the furnace during the sintering of boron nitride, and a cleaning mechanism is required to clean the slag in real time.

[0003] In the prior art, patent publication number CN202120806781.9 discloses a cleaning structure for a sintering furnace, including a furnace body, a base at the bottom of the furnace body, a sintering cavity inside the furnace body, heating elements arranged around the sintering cavity, a control console on one side of the furnace body, a cleaning mechanism inside the furnace body for cleaning the inside of the sintering cavity, a switch valve on the cleaning mechanism, a slide rail fixed to the bottom wall inside the sintering cavity, a platform movably mounted on the slide rail, an inner groove inside the slide rail, a moving structure for driving the platform to move within the inner groove, a vertical plate fixed to the front end of the inner groove, and a drive module for activating the switch valve on the platform.

[0004] The above-mentioned cleaning structure has some problems in actual use. For example, the nozzle is fixed at an angle, and there are dead angles in the nozzle blowing direction, which may cause the boron nitride slag to clump. To address this, we propose a sintering furnace slag cleaning mechanism. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a sintering furnace slag cleaning mechanism that can clean all corners of the furnace wall and effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a sintering furnace slag cleaning mechanism, including a mounting frame, the mounting frame including a left mounting plate frame and a right sandwich mounting plate frame, and further including an airflow passage component and an airflow reversing component;

[0007] Airflow through-flow assembly: It includes an inner sleeve, guide protrusions, inner tube exhaust port, outer sleeve, and outer tube exhaust port. The inner sleeve is symmetrically rotated and connected to the right side wall of the left mounting plate frame. The outer arc surface of the inner sleeve has evenly distributed inner tube exhaust ports. The outer arc surface of the inner sleeve has evenly distributed guide protrusions. The outer arc surface of the inner sleeve is movably fitted with the outer sleeve. The outer arc surface of the outer sleeve has evenly distributed outer tube exhaust ports. The right end of the inner sleeve is provided with a right side sandwich mounting plate frame.

[0008] Airflow reversing component: It is located on the upper side of the airflow through component and can clean all corners of the furnace wall to prevent boron nitride from caking.

[0009] Furthermore, the airflow connection component also includes rotary joints, which are symmetrically arranged on the right side wall of the right sandwich mounting plate frame. The rotating ends of the two rotary joints are fixedly connected to the right end of the inner sleeve corresponding to the lateral position, and the fixed ends of the two rotary joints are fixedly connected to the right side wall of the right sandwich mounting plate frame, thereby realizing the function of rotary air supply.

[0010] The airflow reversing assembly includes a longitudinally inserted rectangular column, a height adjustment plate, a support column, and an oblique limiting track. The oblique limiting track is fixedly connected to the middle of the outer arc surface of the two outer tubes. A height adjustment plate is provided on the upper side of the two outer tubes. Support columns are symmetrically fixedly connected to the side wall of the height adjustment plate. The outer arc surface of the two support columns is slidably connected to the inside of the oblique limiting track located on the same side to change the blowing direction of the high-pressure airflow.

[0011] Furthermore, the airflow reversing assembly also includes a movable frame, a motor, an eccentric disk, rollers, and a lateral limiting rail. The movable frame is located on the upper side of the two outer sleeves. The outer surface of the longitudinally penetrating rectangular column is slidably connected to the middle of the movable frame. The upper side of the longitudinally penetrating rectangular column is fixedly connected to the lateral limiting rail. The middle of the left side of the middle partition of the movable frame is fixedly connected to the motor. The output shaft of the motor is fixedly connected to the eccentric disk. The upper right side of the eccentric disk is rotatably connected to the roller. The outer arc surface of the roller is slidably connected to the inside of the lateral limiting rail. The input end of the motor is electrically connected to the output end of an external controller to provide power for changing the purging direction.

[0012] Furthermore, the right side of the mobile frame is provided with an electric telescopic rod. The telescopic end of the electric telescopic rod is fixedly connected to the right side of the mobile frame, and the input end of the electric telescopic rod is electrically connected to the output end of an external controller to realize the function of opening and closing the purging direction.

[0013] Furthermore, the right side of the right sandwich mounting plate frame is provided with a split air intake pipe. The left ends of the two split pipes are respectively connected to the right fixed ends of the two rotary joints. The right air intake port of the split air intake pipe is connected to an external air supply device to realize the function of air intake.

[0014] Furthermore, the upper surfaces of the left mounting plate and the right sandwich mounting plate are respectively fixedly connected to fixed plates symmetrically at the front and back, which is to install the mechanism in a relative manner.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This sintering furnace slag cleaning mechanism has the following advantages:

[0016] The inner and outer sleeves are driven to reciprocate in different ways by using an eccentric wheel structure and a connecting rod structure. This allows high-pressure nitrogen gas to blow the furnace wall of the sintering furnace, which in turn blows away the boron nitride residue on the inner wall of the boron nitride sintering furnace. This cleans every corner of the furnace wall and prevents boron nitride from caking. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a partial cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is an enlarged structural schematic diagram of point A of this utility model;

[0021] Figure 5 This is an enlarged structural schematic diagram of section B of this utility model;

[0022] Figure 6 This is a partial structural schematic diagram of the airflow passage component of this utility model.

[0023] In the diagram: 1. Mounting bracket, 101. Left side mounting plate bracket, 102. Right side sandwich mounting plate bracket, 2. Airflow through assembly, 21. Inner sleeve, 22. Guide protrusion, 23. Inner pipe exhaust port, 24. Rotary joint, 25. Outer sleeve, 26. Outer pipe exhaust port, 3. Fixing plate, 4. Airflow reversing assembly, 41. Moving frame, 42. Motor, 43. Eccentric disc, 44. Roller, 45. Longitudinal interlacing rectangular column, 46. Lateral limiting rail, 47. Height adjustment plate, 48. Support column, 49. Diagonal limiting rail, 5. Electric telescopic rod, 6. Diverter intake pipe. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This embodiment provides a technical solution: a sintering furnace slag cleaning mechanism, including a mounting frame 1, which includes a left mounting plate frame 101 and a right sandwich mounting plate frame 102, and also includes an airflow passage component 2 and an airflow reversing component 4;

[0026] Airflow connection component 2: It includes an inner sleeve 21, guide protrusions 22, inner pipe exhaust port 23, outer sleeve 25, and outer pipe exhaust port 26. The inner sleeve 21 is symmetrically rotatably connected to the right side wall of the left mounting plate 101. The outer arc surface of the inner sleeve 21 has evenly distributed inner pipe exhaust ports 23. The outer arc surface of the inner sleeve 21 has evenly distributed guide protrusions 22. The outer sleeve 25 is movably fitted onto the outer arc surface of the inner sleeve 21. The outer arc surface of the outer sleeve 25 has evenly distributed outer pipe exhaust ports 26. The right end of the inner sleeve 21 is provided with a right side sandwich mounting plate 1. 02. The airflow connection component 2 also includes rotary joints 24. The rotary joints 24 are symmetrically arranged on the right side wall of the right sandwich mounting plate 102. The rotating ends of the two rotary joints 24 are fixedly connected to the right ends of the inner sleeves 21 corresponding to the lateral positions. The fixed ends of the two rotary joints 24 are fixedly connected to the right side wall of the right sandwich mounting plate 102. The right side of the right sandwich mounting plate 102 is provided with a diversion air inlet pipe 6. The left ends of the two diversion pipes of the diversion air inlet pipe 6 are respectively connected to the right fixed ends of the two rotary joints 24. Air enters from the right side of the diversion air inlet pipe 6. The external gas supply equipment is connected to the outlet. Fixed plates 3 are symmetrically fixed to the upper surfaces of the left-side mounting bracket 101 and the right-side sandwich mounting bracket 102. When the slag cleaning mechanism for the sintering furnace needs to be used, the installation method is selected according to the model of the boron nitride sintering furnace. One installation method is to install the cleaning mechanism on an external hoisting frame, fix the fixed plates 3 to the hoisting frame, and then fix the electric telescopic rod 5 to the external hoisting frame. Afterwards, after the boron nitride sintering furnace completes the sintering operation, the temperature of the sintering furnace is appropriately reduced to lower its internal temperature to [a certain value]. Once the temperature drops below 60°C, the furnace door can be opened, and the hoisting frame can be moved to the right side of the furnace door. At this point, the hoisting frame can be moved to the left and pushed into the furnace body. Then, the external controller can be adjusted, and the electric telescopic rod 5 will operate. The telescopic end of the electric telescopic rod 5 will extend, forcing the moving frame 41 to move to the left, which in turn causes the outer sleeve 25 to move to the left until the inner tube exhaust port 23 on the inner sleeve 21 and the outer tube exhaust port 26 on the outer sleeve 25 are in a one-to-one front-to-back and up-to-down position. At this point, the inner tube exhaust port 23 and the outer tube exhaust port 26 are in a clear state.

[0027] Airflow diversion assembly 4: Located above airflow passage assembly 2, airflow diversion assembly 4 includes a longitudinally inserted rectangular column 45, a height adjustment plate 47, a support column 48, and an oblique limiting track 49. The oblique limiting track 49 is fixedly connected to the middle of the outer arc surface of the two outer tubes 25. A height adjustment plate 47 is provided on the upper side of the two outer tubes 25. The support columns 48 are symmetrically fixedly connected to the side walls of the height adjustment plate 47. The outer arc surface of the two support columns 48 is slidably connected to the interior of the oblique limiting track 49 located on the same side. Airflow diversion assembly 4 also includes a moving frame 41, a motor 42, an eccentric disk 43, rollers 44, and a transverse limiting track 46. The moving frame 41 is located on the two outer tubes 25. On the upper side, the outer surface of the longitudinally intersecting rectangular column 45 is slidably connected to the middle of the movable frame 41. A transverse limiting rail 46 is fixedly connected to the upper side of the longitudinally intersecting rectangular column 45. A motor 42 is fixedly connected to the middle of the left side of the middle partition of the movable frame 41. An eccentric disk 43 is fixedly connected to the output shaft of the motor 42. A roller 44 is rotatably connected to the upper part of the right side of the eccentric disk 43. The outer arc surface of the roller 44 is slidably connected to the inside of the transverse limiting rail 46. The input end of the motor 42 is electrically connected to the output end of an external controller. An electric telescopic rod 5 is provided on the right side of the movable frame 41. The telescopic end of the electric telescopic rod 5 is fixedly connected to the right side of the movable frame 41. The input end of the electric telescopic rod 5 is electrically connected to the output end of an external controller. (A guide rail can be installed between the left mounting bracket 101 and the right sandwich mounting bracket 102. The guide rail is slidably connected to the adjacent side of the movable frame 41, providing sliding support during the movement of the movable frame 41. When the electric telescopic rod 5 pushes the movable frame 41, the radial force can be borne by the sliding support between the guide rail and the movable frame 41. Therefore, the radial force on the electric telescopic rod 5 is very small, ensuring that the telescopic rod of the electric telescopic rod 5 is only subjected to force in the axial direction, avoiding damage caused by excessive radial force. The guide rail restricts the left and right sides of the movable frame 41, ensuring smooth lateral displacement.) This allows for the control of the external controller, causing the motor 42 to operate. The output shaft of the motor 42 rotates, which in turn drives the eccentric disk 43 to rotate. The rotation of the eccentric disk 43... The roller 44 rotates around the central axis of the output shaft of the motor 42. Due to the sliding connection between the roller 44 and the lateral limiting rail 46, when the roller 44 rotates to its uppermost position, it pulls upward on the longitudinally inserting rectangular column 45, thereby moving the height adjusting plate 47 to its uppermost position. When the roller 44 rotates to its lowermost position, it presses down on the longitudinally inserting rectangular column 45, thereby moving the height adjusting plate 47 to its lowermost position. As the longitudinally inserting rectangular column 45 continuously reciprocates up and down, the height adjusting plate 47 also continuously reciprocates up and down, thereby driving the support column 48 to continuously reciprocate up and down. Limited by the oblique limiting rail 49, and due to the sliding connection between the support column 48 and the oblique limiting rail 49, when the support column 48 moves to its lowermost position...The inclined limiting rail 49 forces the front outer sleeve 25 to rotate clockwise and the rear outer sleeve 25 to rotate counterclockwise, thereby driving the front inner sleeve 21 to rotate clockwise and the rear inner sleeve 21 to rotate counterclockwise. When the support column 48 moves to the uppermost position, the front inner sleeve 21 and outer sleeve 25 and the rear inner sleeve 21 and outer sleeve 25 rotate in opposite directions to reset. Then, the above steps are repeated to change the orientation of the inner pipe exhaust port 23 and the outer pipe exhaust port 26. At this time, the external air supply equipment can be controlled. The external air supply equipment introduces high-pressure nitrogen. The high-pressure nitrogen enters the rotary joint 24 through the diversion inlet pipe 6. The high-pressure nitrogen enters the housing of the rotary joint 24 from the fixed pipe and flows to the sealing area through the flow channel inside the housing. The shaft connected to the inner sleeve 21 rotates synchronously with the equipment. At this time, the shaft and There is relative rotational motion between the shells, and ventilation is carried out during the rotation of the inner sleeve 21. High-pressure nitrogen gas is blown out along with the inner sleeve 21. As the inner sleeve 21 continuously reciprocates, the high-pressure nitrogen gas is blown towards the furnace wall at different angles, sweeping away the slag on the furnace bottom and walls. At this time, the flue gas outlet of the sintering furnace is connected to an external dust collector. While the high-pressure nitrogen gas is purging the inside of the sintering furnace, the external dust collector performs induced draft, using the airflow to carry light boron nitride powder and loose particles from the flue gas outlet and suck them into the external dust collector for dust removal. This only shows one method of embedding the hoisting frame externally into the sintering furnace for slag cleaning; the mechanism can also be directly installed inside the sintering furnace. In this case, the longitudinally inserted rectangular column 45, height adjustment plate 47, support column 48, and oblique limiting track 49 need to use nickel-based high-temperature alloys.

[0028] The working principle of the slag cleaning mechanism for a sintering furnace provided by this utility model is as follows: When the slag cleaning mechanism for a sintering furnace needs to be used, the installation method is selected according to the model of the boron nitride sintering furnace. One installation method is to install the cleaning mechanism on an external hoisting frame, fix the fixing plate 3 to the hoisting frame, and then fix the electric telescopic rod 5 to the external hoisting frame. After the boron nitride sintering furnace completes the sintering operation, the temperature of the sintering furnace is appropriately reduced to below 60°C. Then, the furnace door can be opened, and the hoisting frame is moved to the right side of the furnace door. At this time, the hoisting frame can be moved to the left and pushed into the furnace body. At this time, the external controller can be adjusted, and the electric telescopic rod 5 operates. The extension of the telescopic end of 5 forces the movable frame 41 to move to the left, which in turn causes the outer sleeve 25 to move to the left until the inner tube exhaust port 23 on the inner sleeve 21 and the outer tube exhaust port 26 on the outer sleeve 25 are aligned in the front-to-back and vertical positions. At this time, the inner tube exhaust port 23 and the outer tube exhaust port 26 are in a clear state, and the external controller can be adjusted. The motor 42 runs, and the output shaft of the motor 42 rotates, which in turn drives the eccentric disk 43 to rotate. The rotation of the eccentric disk 43 will drive the roller 44 to rotate around the central axis of the output shaft of the motor 42. Due to the sliding connection between the lateral limit rail 46 and the roller 44, when the roller 44 rotates to the uppermost side, it will lift the longitudinally inserted rectangular column 45 upward, which will then drive the height adjustment plate 47 to move to the uppermost position. On the upper side, when the roller 44 rotates to the lowest position, it presses down on the longitudinally inserted rectangular column 45, thereby driving the height adjustment plate 47 to move to the lowest position. As the longitudinally inserted rectangular column 45 continuously reciprocates up and down, the height adjustment plate 47 also continuously reciprocates up and down, thereby driving the support column 48 to continuously reciprocate up and down. Limited by the inclined limiting rail 49 and the sliding connection between the support column 48 and the inclined limiting rail 49, when the support column 48 moves to the lowest position, it will force the front outer sleeve 25 to rotate clockwise and the rear outer sleeve 25 to rotate counterclockwise through the inclined limiting rail 49, thereby driving the front inner sleeve 21 to rotate clockwise and the rear inner sleeve 21 to rotate counterclockwise. As the needle rotates, when the support column 48 moves to the uppermost position, the inner sleeve 21 and outer sleeve 25 on the front side rotate in opposite directions to reset, and then the above steps are repeated. The orientation of the inner tube exhaust port 23 and the outer tube exhaust port 26 is changed. At this time, the external air supply equipment can be adjusted. The external air supply equipment introduces high-pressure nitrogen, which enters the rotary joint 24 through the diversion inlet pipe 6. The high-pressure nitrogen enters the housing of the rotary joint 24 from the fixed pipe and flows to the sealing area through the flow channel inside the housing. The shaft connected to the inner sleeve 21 rotates synchronously with the equipment. At this time, there is a relative rotational motion between the shaft and the housing, and ventilation is performed during the rotation of the inner sleeve 21. The gas will be blown out with the inner sleeve 21 as high-pressure nitrogen.As the inner sleeve 21 rotates continuously, high-pressure nitrogen gas is blown towards the furnace wall at different angles. The high-pressure nitrogen gas sweeps away the slag on the furnace bottom and walls. At this time, the flue gas outlet of the sintering furnace is connected to an external dust collector. While the high-pressure nitrogen gas is sweeping the inside of the sintering furnace, the external dust collector performs induced draft operations, using the airflow to carry light boron nitride powder and loose particles out of the flue gas outlet and into the external dust collector for dust removal.

[0029] It is worth noting that the motor 42 and electric telescopic rod 5 disclosed in the above embodiments can be freely configured according to the actual application scenario. It is recommended that the motor 42 be a YE series low-speed motor and the electric telescopic rod 5 be a U10 series heavy-duty industrial electric push rod. The external controller controls the operation of the motor 42 and the electric telescopic rod 5 using methods commonly used in the prior art.

[0030] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A slag cleaning mechanism for a sintering furnace, comprising a mounting frame (1), the mounting frame (1) comprising a left mounting plate frame (101) and a right sandwich mounting plate frame (102), characterized in that: It also includes an airflow through-flow component (2) and an airflow reversing component (4); Airflow through assembly (2): It includes an inner sleeve (21), a guide protrusion (22), an inner tube exhaust port (23), an outer sleeve (25), and an outer tube exhaust port (26). The inner sleeve (21) is symmetrically rotated and connected to the right side wall of the left mounting plate frame (101). The outer arc surface of the inner sleeve (21) is provided with evenly distributed inner tube exhaust ports (23). The outer arc surface of the inner sleeve (21) is provided with evenly distributed guide protrusions (22). The outer arc surface of the inner sleeve (21) is movably fitted with the outer sleeve (25). The outer arc surface of the outer sleeve (25) is provided with evenly distributed outer tube exhaust ports (26). The right end of the inner sleeve (21) is provided with a right side sandwich mounting plate frame (102). Airflow reversing component (4): It is located on the upper side of the airflow through component (2).

2. The slag cleaning mechanism for a sintering furnace according to claim 1, characterized in that: The airflow connection component (2) also includes a rotary joint (24), which is symmetrically arranged on the right side wall of the right sandwich mounting plate (102). The rotating ends of the two rotary joints (24) are fixedly connected to the right end of the inner sleeve (21) corresponding to the lateral position, and the fixed ends of the two rotary joints (24) are fixedly connected to the right side wall of the right sandwich mounting plate (102).

3. The slag cleaning mechanism for a sintering furnace according to claim 1, characterized in that: The airflow reversing assembly (4) includes a longitudinally inserted rectangular column (45), a height adjustment plate (47), a support column (48), and an oblique limiting track (49). The oblique limiting track (49) is fixedly connected to the middle of the outer arc surface of the two outer tubes (25). A height adjustment plate (47) is provided on the upper side of the two outer tubes (25). The side walls of the height adjustment plate (47) are symmetrically fixedly connected with the support column (48) at the front and back. The outer arc surface of the two support columns (48) is slidably connected to the inside of the oblique limiting track (49) located on the same side.

4. The slag cleaning mechanism for a sintering furnace according to claim 3, characterized in that: The airflow reversing assembly (4) also includes a moving frame (41), a motor (42), an eccentric disk (43), a roller (44), and a transverse limiting track (46). The moving frame (41) is located on the upper side of the two outer sleeves (25). The outer surface of the longitudinally inserted rectangular column (45) is slidably connected to the middle part of the moving frame (41). The upper side of the longitudinally inserted rectangular column (45) is fixedly connected to the transverse limiting track (46). The middle left side of the middle partition of the moving frame (41) is fixedly connected to the motor (42). The output shaft of the motor (42) is fixedly connected to the eccentric disk (43). The upper right side of the eccentric disk (43) is rotatably connected to the roller (44). The outer arc surface of the roller (44) is slidably connected to the interior of the transverse limiting track (46). The input end of the motor (42) is electrically connected to the output end of the external controller.

5. The slag cleaning mechanism for a sintering furnace according to claim 4, characterized in that: The right side of the mobile frame (41) is provided with an electric telescopic rod (5). The telescopic end of the electric telescopic rod (5) is fixedly connected to the right side of the mobile frame (41), and the input end of the electric telescopic rod (5) is electrically connected to the output end of an external controller.

6. The slag cleaning mechanism for a sintering furnace according to claim 2, characterized in that: The right side of the right sandwich mounting plate frame (102) is provided with a split air inlet pipe (6). The left ends of the two split pipes of the split air inlet pipe (6) are respectively connected to the right fixed ends of the two rotary joints (24). The right air inlet of the split air inlet pipe (6) is connected to an external air supply device.

7. The slag cleaning mechanism for a sintering furnace according to claim 1, characterized in that: The upper surfaces of the left mounting plate frame (101) and the right sandwich mounting plate frame (102) are respectively fixedly connected with fixing plates (3) symmetrically front and back.

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