A smoke filtering device of a vacuum oil quenching furnace

Abstract

The utility model relates to a kind of flue gas filtering devices of vacuum oil quenching furnace, comprising: filter box, top is equipped with exhaust port;Air inlet pipe, wear in the filter box, and one end of the air inlet pipe is inserted into the bottom of the filter box, and the other end is connected with the exhaust part of vacuum oil quenching furnace;Filter element, the filter box both sides are equipped with clamping groove, the filter element is slidably connected between two clamping grooves;Limiting piece, wear in two clamping grooves and abut on the side surface of filter element, for limiting the filter element between two clamping grooves.The utility model is installed between the two clamping grooves of filter box by filter element with clamping mode, and it is installed and fixed by combining limiting piece with the side surface of filter element, realizes the installation and disassembly of filter element can be quickly completed, it is convenient to maintain, so as to avoid filter element and block due to long-term use, so as to ensure that filter element always has good permeability and stable filtering effect.

Description

Technical Field

[0001] This utility model relates to the field of vacuum oil quenching furnace technology, and specifically to a flue gas filtration device for a vacuum oil quenching furnace. Background Technology

[0002] Vacuum oil quenching furnaces generate a large amount of oil fumes during operation. If not effectively controlled, these fumes can pollute the surrounding environment and potentially harm the health of workers. Therefore, oil fume filtration devices are typically installed in vacuum oil quenching furnaces to reduce the adverse effects of oil fumes on the production environment and operators.

[0003] For example, Chinese patent CN218262619U discloses an oil fume filtration device for a dual-chamber vacuum oil quenching furnace. This device features rollers and brushes on the filter elements inside the filter box. The user activates an electric push rod, causing its telescopic end to drive a rolling rod, which in turn rotates the rollers and brushes on the filter screen, cleaning dust and impurities. A suction pump then removes the cleaned dust, preventing accumulation inside the filter box and improving overall filtration efficiency. However, the filter screen structure is still fixed, preventing users from disassembling it for maintenance. After prolonged use, the filter screen will gradually become clogged due to oil fume buildup, leading to a decrease in filtration efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a flue gas filtration device for a vacuum oil quenching furnace, thereby solving the problem that existing flue gas filtration devices for vacuum oil quenching furnaces, due to their fixed filter components that cannot be disassembled for maintenance, are prone to clogging by oil fumes after long-term use.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A flue gas filtration device for a vacuum oil quenching furnace, comprising:

[0007] The filter box has an exhaust port on the top;

[0008] An air inlet pipe is installed in the filter box, with one end of the air inlet pipe extending into the bottom of the filter box and the other end connected to the exhaust section of the vacuum oil quenching furnace.

[0009] The filter element has slots on both sides of the filter box, and the filter element can be slidably engaged between the two slots.

[0010] A limiting member is inserted through the two slots and abuts against one side of the filter element, for limiting the filter element to be located between the two slots.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. By installing the filter element between two slots in the filter box using a snap-fit ​​method, and combining it with a limiting component that abuts against the side of the filter element to fix it in place, the filter element can be quickly installed and removed, making maintenance convenient. This avoids clogging of the filter element due to long-term use, thus ensuring that the filter element always has good permeability and stable filtration effect.

[0013] Furthermore, the limiting member includes two connecting rods and limiting blocks respectively connected to the two connecting rods. The filter box has an installation groove, and both connecting rods are slidably disposed in the installation groove, and both connecting rods have toothed grooves. A gear is rotatably disposed in the installation groove, and the gear meshes between the two toothed grooves.

[0014] Furthermore, a fixing plate is provided in the mounting groove, and a first spring is provided on one side of the fixing plate, with one end of the first spring abutting against one of the connecting rods.

[0015] Furthermore, the filter box is equipped with an adjustment knob that rotates, and one end of the adjustment knob passes through the mounting groove and is connected to the gear.

[0016] Furthermore, a guide slope is provided on one side of the limiting block, and the guide slope corresponds to the opening of the slot.

[0017] Furthermore, a mounting flange is fixedly provided at the other end of the air intake pipe.

[0018] Furthermore, the slot is provided with an elastic element that abuts against the other side of the filter element. The elastic element includes a mounting cylinder disposed inside the slot, a positioning pin passing through the mounting cylinder, and a second spring located inside the mounting cylinder and abutting against the inside of the positioning pin. The filter element is sleeved on the positioning pin. Attached Figure Description

[0019] Appendix Figure 1 : A schematic diagram of the flue gas filtration device for the vacuum oil quenching furnace in this embodiment;

[0020] Appendix Figure 2 This is a partial cross-sectional schematic diagram of the flue gas filtration device of the vacuum oil quenching furnace in this embodiment.

[0021] Appendix Figure 3 Appendix Figure 2 A magnified view of a portion of the image;

[0022] Appendix Figure 4 This embodiment shows a partial enlarged cross-sectional view of the elastic element in the flue gas filtration device of the vacuum oil quenching furnace.

[0023] Explanation of icon numbers:

[0024] 10. Filter box; 11. Card slot; 12. Mounting slot;

[0025] 20. Intake pipe; 21. Mounting flange;

[0026] 30. Filter components;

[0027] 40. Limiting component; 41. Connecting rod; 42. Limiting block; 421. Guide slope; 43. Tooth groove; 44. Gear; 45. Fixing plate; 46. First spring; 47. Adjusting knob;

[0028] 50. Elastic element; 51. Mounting cylinder; 52. Locating pin; 53. Second spring.

[0029] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0030] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solutions of this utility model are further described below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this utility model and are not intended to limit it.

[0031] In the description of this utility model, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and to facilitate understanding and reading. They are not intended to limit the implementation conditions of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to the size, without affecting the effects and objectives of this utility model, should still fall within the scope of the technical content disclosed in this utility model. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of implementation of this utility model.

[0032] like Figure 1-4As shown in the figure, this utility model embodiment proposes a flue gas filtration device for a vacuum oil quenching furnace, including: a filter box 10 with an exhaust port at the top; an inlet pipe 20 passing through the filter box 10, with one end of the inlet pipe 20 extending into the bottom of the filter box 10 and the other end connected to the exhaust part of the vacuum oil quenching furnace; specifically, the other end of the inlet pipe 20 is fixedly provided with a mounting flange 21, which facilitates connecting the end of the inlet pipe 20 to the exhaust part of the vacuum oil quenching furnace; a filter element 30, with slots 11 on both sides of the filter box 10, the filter element 30 being slidably engaged between the two slots 11, wherein the filter element 30 is located above the exhaust end of the inlet pipe 20; and a limiting member 40 passing through the two slots 11 and abutting against one side of the filter element 30, for limiting the filter element 30 between the two slots 11.

[0033] In this embodiment of the present invention, the flue gas generated during the operation of the vacuum oil quenching furnace first enters from the inlet end of the inlet pipe 20, and then enters the filter box 10 through the outlet end of the inlet pipe 20. Under the action of the filter element 30, the oil mist and impurities in the flue gas are blocked on the surface of the filter element 30, and the filtered gas is discharged through the exhaust port at the top of the filter box 10, thereby achieving the purpose of purifying the flue gas.

[0034] Secondly, when installing the filter element 30, since the filter box 10 has two slots 11 mirrored on both sides, and the distance between the two slots 11 is adapted to the width of the filter element 30, the filter element 30 can be directly snapped into the two slots 11 to complete the initial positioning of the filter element 30. In order to ensure its stability, with the cooperation of the limiting member 40, the limiting member 40 can abut against the side of the filter element 30 so that the filter element 30 is limited between the two slots 11, thereby completing the fixed installation of the filter element 30.

[0035] After a period of use, the oil mist and impurities accumulated on the surface of the filter element 30 will affect its permeability and filtration performance. At this time, the user simply needs to move the limiting member 40 out of the slot 11, freeing the filter element 30 from its constraint, and then pull it out of the slot 11 for cleaning or replacement. After cleaning or replacement, the filter element 30 is reinserted between the two slots 11 and secured by the limiting member 40. The entire process is simple to operate and convenient for maintenance, effectively preventing the filter element 30 from becoming clogged due to long-term use and ensuring a long-term stable filtration effect of the device.

[0036] Specifically, such as Figure 2-3As shown in this embodiment of the invention, the limiting member 40 includes two connecting rods 41 and limiting blocks 42 respectively connected to the two connecting rods 41. The filter box 10 has an installation groove 12, and both connecting rods 41 are slidably disposed in the installation groove 12, and both connecting rods 41 have toothed grooves 43. A gear 44 is rotatably disposed in the installation groove 12, and the gear 44 meshes between the two toothed grooves 43. By rotating the gear 44 in the installation groove 12, it meshes with the toothed grooves 43 on the two connecting rods 41, causing the two connecting rods 41 to slide synchronously in opposite directions, thereby causing the two limiting blocks 42 to move away from the filter element 30 at the same time, releasing the limitation on the filter element 30. At this time, the user can pull out the filter element 30 along the direction of the slot 11 for cleaning or replacement. After completion, the filter element 30 is inserted into the slot 11, and the two connecting rods 41 are driven to slide synchronously towards each other by rotating the gear 44, so that the two limiting blocks 42 abut against the side of the filter element 30, so as to stably limit the filter element 30 between the slots 11, thus completing the fixed installation of the filter element 30. In addition, the filter box 10 is provided with an adjustment knob 47, one end of which passes through the mounting groove 12 and is connected to the gear 44. By directly rotating the adjustment knob 47, the gear 44 is driven to rotate, so that the forward and reverse rotation of the gear 44 can be controlled by adjusting the forward and reverse rotation of the adjustment knob 47, making the operation more convenient.

[0037] Secondly, a fixing plate 45 is provided in the mounting groove 12, and a first spring 46 is provided on one side of the fixing plate 45. One end of the first spring 46 abuts against one of the connecting rods 41. Under the action of the first spring 46, one of the connecting rods 41 is always subjected to the squeezing force of the first spring 46, so that the limiting block 42 abuts against the side of the filter element 30, ensuring the stability of the limiting block 42 and preventing it from moving easily. At the same time, this connecting rod 41 can also transmit the force received to the other connecting rod 41 through the cooperation of the tooth groove 43 and the gear 44, thereby ensuring the stability of the filter element 30 after installation.

[0038] Furthermore, since the limiting block 42 is always kept within the slot 11 by the action of the first spring 46, a guide slope 421 is provided on one side of the limiting block 42 to simplify the installation steps of the filter element 30. The guide slope 421 corresponds to the opening of the slot 11. When the filter element 30 is aligned with the opening of the slot 11, the guide slope 421 first contacts the filter element 30, allowing it to slide gradually into the slot 11 under the action of the insertion force. As the filter element 30 gradually enters the slot 11, it pushes the limiting block 42 out of the slot 11, thus providing space for the filter element 30 to slide within the slot 11. After the filter element 30 has completely slid into the slot 11, the first spring 46 drives the limiting block 42 back to its original position, causing the limiting block 42 to abut against the side of the filter element 30, fixing the filter element 30 within the slot 11, thus achieving a fixed installation.

[0039] Based on the above solutions, such as Figure 4 As shown in this embodiment of the present invention, the slot 11 is provided with an elastic element 50 that abuts against the other side of the filter element 30. The elastic element 50 includes an installation cylinder 51 disposed inside the slot 11, a positioning pin 52 passing through the installation cylinder 51, and a second spring 53 located inside the installation cylinder 51 and abutting against the inside of the positioning pin 52. The filter element 30 is sleeved on the positioning pin 52. Specifically, the filter element 30 is provided with a positioning hole that cooperates with the positioning pin 52. When the adjustment knob 47 is rotated to drive the gear 44 to separate the two limiting blocks 42 from the filter element 30, the filter element 30 is subjected to the pressure of the positioning pin 52 and the second spring 53, so that one end of the filter element 30 protrudes from the opening of the slot 11, thereby facilitating manual removal of the filter element 30 and improving the convenience of disassembly.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A flue gas filtration device for a vacuum oil quenching furnace, characterized in that, include: The filter box (10) has an exhaust port on the top; An air inlet pipe (20) is installed in the filter box (10), with one end of the air inlet pipe (20) extending into the bottom of the filter box (10) and the other end connected to the exhaust section of the vacuum oil quenching furnace. The filter element (30) has slots (11) on both sides of the filter box (10), and the filter element (30) is slidably engaged between the two slots (11). A limiting member (40) is inserted through the two slots (11) and abuts against one side of the filter element (30) to limit the filter element (30) between the two slots (11).

2. The flue gas filtration device for a vacuum oil quenching furnace according to claim 1, characterized in that, The limiting member (40) includes two connecting rods (41) and limiting blocks (42) respectively connected to the two connecting rods (41). The filter box (10) is provided with a mounting groove (12). The two connecting rods (41) are slidably disposed in the mounting groove (12), and the two connecting rods (41) are provided with tooth grooves (43). A gear (44) is rotatably disposed in the mounting groove (12), and the gear (44) meshes between the two tooth grooves (43).

3. The flue gas filtration device for a vacuum oil quenching furnace according to claim 2, characterized in that, The mounting groove (12) is provided with a fixing plate (45), and a first spring (46) is provided on one side of the fixing plate (45). One end of the first spring (46) abuts against one of the connecting rods (41).

4. The flue gas filtration device for a vacuum oil quenching furnace according to claim 2, characterized in that, The filter box (10) is equipped with an adjustment knob (47) that rotates. One end of the adjustment knob (47) passes through the mounting groove (12) and is connected to the gear (44).

5. The flue gas filtration device for a vacuum oil quenching furnace according to claim 3, characterized in that, The limiting block (42) has a guide slope (421) on one side, and the guide slope (421) corresponds to the opening of the slot (11).

6. The flue gas filtration device for a vacuum oil quenching furnace according to claim 1, characterized in that, The other end of the air intake pipe (20) is fixedly provided with a mounting flange (21).

7. A flue gas filtration device for a vacuum oil quenching furnace according to any one of claims 1-6, characterized in that, The slot (11) is provided with an elastic element (50) that abuts against the other side of the filter element (30). The elastic element (50) includes an installation cylinder (51) located inside the slot (11), a positioning pin (52) passing through the installation cylinder (51), and a second spring (53) located inside the installation cylinder (51) and abutting against the inside of the positioning pin (52). The filter element (30) is sleeved on the positioning pin (52).

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