Deslagging device for nitriding furnace

Abstract

A nitriding furnace deslagging device belongs to the technical field of nitriding furnace deslagging and comprises a nitriding furnace body, a lifting type sealing cover with an air inlet pipe is mounted at the top of the nitriding furnace body, a supporting frame is fixedly mounted on the upper surface of the lifting type sealing cover, and a stepping motor is fixedly mounted on the front surface of the supporting frame. A shaft rod is rotatably mounted on the lower surface of the lifting type sealing cover, the upper surface of the shaft rod is fixedly connected with the output end of the stepping motor, a filtering supporting plate is fixedly mounted on the lower surface of the shaft rod, two detachable semi-rings are mounted on the upper surface of the filtering supporting plate, and the two semi-rings are spliced and assembled into a complete ring body; in the process that the lifting type sealing cover drives the filtering supporting plate to ascend, the stepping motor is used for driving the filtering supporting plate and the semi-circle ring with the crushing teeth to rotate through the shaft rod, the crushing teeth make rigid contact with slag on the furnace wall, and efficient scraping is achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to nitrogenization furnace slag removal technical field, concretely relates to a nitrogenization furnace slag removal device. BACKGROUND

[0002] In the use process of nitrogenization furnace, slag removal is a vital work, directly influences the normal operation of nitrogenization furnace and the quality of nitriding product.

[0003] At present, the existing authorized patent with the patent name of a nitrogenization furnace slag removal device for the nitrogenization furnace slag removal provides a feasible scheme. The patent can conveniently remove the slag from the nitrogenization furnace through the lifting mechanism and the filtering structure, solves the problem of slag cleaning in the nitrogenization furnace to a certain extent, and improves the efficiency and convenience of slag removal.

[0004] However, in actual application, it is found that after long-term operation of the nitrogenization furnace, a large amount of stubborn impurities will be attached to the inner wall of the furnace chamber. These impurities are tightly attached to the inner wall of the furnace chamber due to the influence of high temperature, chemical reaction and other factors, and are very stubborn. The existing patent device only adopts a simple filtering structure, and this structure is mainly aimed at the loose slag in the furnace. It is not convenient to effectively clean the stubborn slag attached to the inner wall of the furnace chamber. If these stubborn slag remains for a long time, not only the heat transfer efficiency of the nitrogenization furnace will be affected, leading to energy waste, but also the product may be contaminated in the subsequent nitriding process, reducing the product quality. Therefore, another nitrogenization furnace slag removal device is provided to solve the above technical problems. UTILITY MODEL CONTENTS

[0005] In view of the problem that the existing nitrogenization furnace slag removal device cannot effectively clean the stubborn slag attached to the inner wall of the furnace chamber of the nitrogenization furnace, the utility model provides a nitrogenization furnace slag removal device. In the process of lifting the filtering support plate driven by the lifting type sealing cover, the step motor drives the filtering support plate and the half-ring with the crushing teeth to rotate through the shaft rod. In the rotation process, the crushing teeth come into rigid contact with the slag attached to the inner wall of the furnace chamber due to the complex effects such as chemical bonding and physical adsorption in the high-temperature nitriding process, and the slag is efficiently scraped off. The whole slag removal work is simple, convenient and efficient, effectively solving the problem that the existing nitrogenization furnace slag removal device cannot effectively clean the stubborn slag attached to the inner wall of the furnace chamber. The specific technical scheme is as follows:

[0006] The utility model relates to a nitrogenization furnace slag removing device, including nitrogenization furnace main part, the top of nitrogenization furnace main part is equipped with the lifting type sealing cover with air inlet pipe, the upper surface of lifting type sealing cover is fixedly installed with support frame, the front surface of support frame is fixedly installed with step motor, the lower surface of lifting type sealing cover is rotatably installed with axle rod, the upper surface of axle rod is fixedly connected with the output of step motor, and the lower surface of axle rod is fixedly installed with filter supporting plate, the upper surface of filter supporting plate is installed with two detachable half rings, two half rings are assembled into complete ring body, the upper surface of half ring is provided with a plurality of broken teeth equidistantly in the circumference, and the outer diameter of half ring is same with the inner cavity diameter of nitrogenization furnace main part.

[0007] In the above technical solution, the rear surface of the lifting type sealing cover is fixedly installed with a connecting block, the rear surface of the nitrogenization furnace main part is fixedly installed with a supporting block, and a hydraulic telescopic rod is fixedly installed between the supporting block and the connecting block.

[0008] In the above technical solution, the upper surface of the filter supporting plate is fixedly installed with two half-ring compression rings, and a plurality of clamping grooves are equidistantly and circumferentially formed in the upper surface of each half-ring compression ring. The half ring is clamped between the half-ring compression ring and the filter supporting plate, and a plurality of clamping columns are fixedly installed on the upper surface of the half ring equidistantly and circumferentially. The clamping columns are inserted into the corresponding clamping grooves.

[0009] In the above technical solution, a plurality of mounting holes are equidistantly and circumferentially formed in the upper surface of the half-ring compression ring and the filter supporting plate. Bolts are screwed between the corresponding mounting holes.

[0010] In the above technical solution, the outer surface of the lifting type sealing cover is symmetrically fixedly installed with ear blocks. The lower surface of each ear block is fixedly installed with a vertical rod. The outer surface of the nitrogenization furnace main part is symmetrically fixedly installed with positioning blocks. The vertical rod is slidably connected with the corresponding positioning block.

[0011] Compared with the prior art, the nitrogenization furnace slag removing device of the utility model has the following beneficial effects:

[0012] Firstly, the utility model can drive the filter supporting plate to rise during the process of the lifting type sealing cover. The step motor drives the filter supporting plate and the half ring with broken teeth to rotate through the axle rod. During the rotation process, the broken teeth produce linear velocity based on the circular motion, and rigid contact occurs between the broken teeth and the slag attached to the inner wall of the furnace cavity due to the complex effects such as chemical bonding and physical adsorption during the high-temperature nitriding process. Efficient scraping is realized. The whole slag removing process is simple and convenient to operate, greatly improves the slag removing efficiency, and effectively solves the problem of inconvenient cleaning of the slag attached to the inner wall of the furnace cavity in the prior art.

[0013] Second, this utility model uses the combination of a semi-circular pressure ring and bolts to fix the semi-circular ring with breaking teeth to the filter tray. When the breaking teeth are worn to a certain extent, the semi-circular ring with breaking teeth can be replaced simply by unscrewing the bolts, which effectively reduces equipment maintenance costs and improves the durability and practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the right-side structure of this utility model.

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0017] Figure 4 This is a schematic diagram of the filter plate structure of this utility model.

[0018] Figure 5 This is a schematic diagram of the exploded structure of this utility model.

[0019] Figure 6 This is a schematic diagram of the locking ring structure of this utility model.

[0020] Figures 1-6 The components include: 1. Nitriding furnace body; 11. Positioning block; 12. Support block; 2. Lifting sealing cover; 21. Air inlet pipe; 22. Connecting block; 23. Ear block; 231. Vertical rod; 3. Support frame; 4. Stepper motor; 5. Hydraulic telescopic rod; 6. Shaft; 61. Filter tray; 7. Half ring; 71. Locking post; 8. Half pressure ring; 81. Locking groove; 82. Mounting hole; 83. Bolt. Detailed Implementation

[0021] 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.

[0022] In this embodiment, front, back, left, right, top, and bottom are... Figure 1 Describe the reference plane. See [link / reference] Figures 1-4 This utility model provides a technical solution:

[0023] The utility model provides a nitrogenization furnace slag removal device, including nitrogenization furnace main part 1, the top of nitrogenization furnace main part 1 is installed with the lifting type sealing cover 2 with air inlet pipe 21, the upper surface of lifting type sealing cover 2 is fixedly installed with support frame 3, the front surface of support frame 3 is fixedly installed with step motor 4, the lower surface of lifting type sealing cover 2 is rotatably installed with axle rod 6, the upper surface of axle rod 6 is fixedly connected with the output of step motor 4, and the lower surface of axle rod 6 is fixedly installed with filter supporting plate 61, the upper surface of filter supporting plate 61 is installed with two detachable half rings 7, two half rings 7 are assembled into complete ring body, the upper surface of half ring 7 is provided with a plurality of broken teeth equidistantly in circumference, and the outer diameter of half ring 7 is same with the inner cavity diameter of nitrogenization furnace main part 1,

[0024] Need to explain, as Figure 2 The rear surface of lifting type sealing cover 2 is fixedly installed with connecting block 22, the rear surface of nitrogenization furnace main part 1 is fixedly installed with support block 12, and hydraulic telescopic rod 5 is fixedly installed between support block 12 and connecting block 22, and the extension of hydraulic telescopic rod 5 can drive lifting type sealing cover 2 to vertically move up and down.

[0025] When the slag adhered to the inner wall of the furnace cavity of nitrogenization furnace main part 1 is cleaned, step motor 4 is started, and step motor 4 can drive filter supporting plate 61 and half ring 7 with broken teeth below it to rotate through axle rod 6, then lifting type sealing cover 2 is driven to move up by hydraulic telescopic rod 5, and lifting type sealing cover 2 drives continuously rotating filter supporting plate 61 and half ring 7 to move up through axle rod 6, in the process of moving up, the broken teeth rotating continuously in circumference rigidly contact the slag adhered to the inner wall of the furnace cavity, so that the slag is scraped off, and the scraped slag falls on filter supporting plate 61 to be collected, when filter supporting plate 61 moves out of the inner cavity of nitrogenization furnace main part 1, the collected slag can be manually cleaned out of filter supporting plate 61, and the whole process of cleaning the slag on the inner wall of the furnace cavity is simple to operate, greatly improves the slag removal efficiency, and effectively solves the problem that the slag adhered to the inner wall of the furnace cavity is inconvenient to clean in the prior art.

[0026] It is worth mentioning that, as shown in Figure 4 And Figure 5 The upper surface of filter supporting plate 61 is fixedly installed with two half ring pressing rings 8, the upper surface of half ring pressing ring 8 is provided with a plurality of clamping grooves 81 equidistantly in circumference, half ring 7 is clamped between half ring pressing ring 8 and filter supporting plate 61, the upper surface of half ring 7 is fixedly installed with a plurality of clamping columns 71 equidistantly in circumference, clamping column 71 is insertedly installed in corresponding clamping groove 81, and the upper surface of half ring pressing ring 8 and filter supporting plate 61 is provided with a plurality of mounting holes 82 equidistantly in circumference, and a plurality of bolts 83 are screwedly installed between the upper and lower corresponding mounting holes 82.

[0027] When the broken teeth of the half-ring 7 are worn to a certain extent, only need to unscrew the bolt 83, take down the half-ring 8 to release the limit of the half-ring 7, and then replace the half-ring 7 with broken teeth, which effectively reduces the equipment maintenance cost and improves the durability and practicality of the device.

[0028] When installing the half-ring 7, first, the card column 71 of the half-ring 7 is precisely inserted into the card slot 81 of the half-ring 8 to complete the preliminary positioning assembly and ensure the accurate relative position of the two. Then, the half-ring 8 is tightly attached to the upper surface of the filter support plate 61, the bolt 83 is passed through the preset mounting hole 82 of the half-ring 8 and the filter support plate 61, and the half-ring 8 and the filter support plate 61 are firmly connected by using the screw fastening principle. After fixing, the lower surface of the half-ring 7 is tightly attached to the upper surface of the filter support plate 61 to achieve reliable clamping and fixing, ensuring the stability and reliability of the device during operation.

[0029] Finally, to ensure the stability of the lifting sealing cover 2 during lifting, ear blocks 23 are symmetrically fixed and installed on the outer surface of the lifting sealing cover 2, the lower surfaces of the ear blocks 23 are fixedly installed with vertical rods 231, and the outer surface of the nitriding furnace body 1 is symmetrically fixed and installed with positioning blocks 11. The vertical rods 231 and the corresponding positioning blocks 11 are in sliding connection, and through the coordinated cooperation between the vertical rods 231 and the positioning blocks 11, the lifting sealing cover 2 can smoothly run along the accurate track during lifting, effectively avoiding shaking and deviation, thereby effectively ensuring the sealing performance and overall operation stability of the nitriding furnace.

Claims

1. A nitrogenizing furnace slag removing device comprising a nitrogenizing furnace main body (1), a lifting type sealing cover (2) with an air inlet pipe (21) is installed on the top of the nitrogenizing furnace main body (1), characterized in that, The upper surface of the lifting type sealing cover (2) is fixedly installed with a support frame (3), the front surface of the support frame (3) is fixedly installed with a stepping motor (4), the lower surface of the lifting type sealing cover (2) is rotatably installed with a shaft rod (6), the upper surface of the shaft rod (6) is fixedly connected with the output end of the stepping motor (4), and the lower surface of the shaft rod (6) is fixedly installed with a filtering supporting plate (61), the upper surface of the filtering supporting plate (61) is installed with two detachable half rings (7), the two half rings (7) are assembled into a complete ring body, a plurality of crushing teeth are arranged on the upper surface of the half ring (7) in a circumferential equidistant manner, and the outer diameter of the half ring (7) is same with the inner cavity diameter of the nitriding furnace body (1).

2. The deslagging device of a nitriding furnace according to claim 1, wherein The rear surface of the lifting type sealing cover (2) is fixedly installed with a connecting block (22), the rear surface of the nitriding furnace body (1) is fixedly installed with a supporting block (12), and the supporting block (12) and the connecting block (22) are fixedly installed with a hydraulic telescopic rod (5).

3. The slag removing device of a nitriding furnace according to claim 1, wherein The upper surface of the filtering supporting plate (61) is fixedly installed with two half ring pressing rings (8), a plurality of clamping grooves (81) are arranged on the upper surface of the half ring pressing ring (8) in a circumferential equidistant manner, the half ring (7) is clamped between the half ring pressing ring (8) and the filtering supporting plate (61), a plurality of clamping columns (71) are fixedly installed on the upper surface of the half ring (7) in a circumferential equidistant manner, and the clamping column (71) is insertedly installed in the corresponding clamping groove (81).

4. The apparatus according to claim 3, wherein The upper surfaces of the half ring pressing ring (8) and the filtering supporting plate (61) are both penetratedly provided with a plurality of mounting holes (82) in a circumferential equidistant manner, and the corresponding mounting holes (82) are screw-connected with a bolt (83).

5. The apparatus according to claim 1, wherein The outer surface of the lifting type sealing cover (2) is fixedly installed with an ear block (23) in a symmetrical manner, the lower surface of the ear block (23) is fixedly installed with a vertical rod (231), the outer surface of the nitriding furnace body (1) is fixedly installed with a positioning block (11) in a symmetrical manner, and the vertical rod (231) and the corresponding positioning block (11) are slidably connected.

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