Waste gas emission mechanism of box-type heating furnace

Abstract

The utility model discloses an exhaust emission mechanism of a box-type heating furnace, which belongs to the technical field of box-type heating furnaces and comprises a box body, an exhaust mechanism is arranged at one end of the box body, an exhaust fan is fixedly mounted at the other end of the box body, and a cooling pipe is fixedly connected to the input end of the exhaust fan. According to the waste gas treatment device, waste gas of the heating furnace enters water in the box body from the cooling pipe and the gas inlet pipe through the exhaust fan, the water is used for absorbing oil smoke and smoke dust with a smaller diameter in the waste gas, and in addition, the semiconductor refrigeration pipe, the cooling fins and the temperature conducting ring are matched to cool the waste gas flowing in the cooling pipe; high-temperature waste gas is prevented from entering water in the box body to cause water vaporization, the waste gas is exhausted through the exhaust pipe, the adsorption box and the gas outlet pipe, and water vapor and peculiar smell in the gas are adsorbed through absorbent cotton and an activated carbon plate.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type heating furnaces, and more specifically to an exhaust gas discharge mechanism of a box-type heating furnace. Background Art

[0002] A box-type heating furnace is a heating equipment, which is mainly used for heat treatment of metal parts or alloy steel parts in the air. When producing aircraft parts, it is also necessary to use a heat treatment heating furnace to heat the parts. It mainly uses electric current to make the heating elements in the furnace emit heat to heat the workpieces or materials inside the furnace. In order to avoid harmful gases and impurities rushing out when the heating furnace door is opened, a special exhaust gas exhaust structure is required.

[0003] After searching, the utility model patent with announcement number CN214914653U discloses an environmental protection device for heat treatment waste gas discharge, including a box body, an air inlet pipe, an air outlet pipe and a water inlet. An air inlet pipe is provided on one side of the box body, an air outlet pipe is provided on the other side of the box body, and a water inlet and a pressure relief port are provided on the top of the box body; the air inlet pipe is connected to a fan and a filter box in sequence; the air outlet pipe is connected to a filter box; a water inlet is installed at the water inlet, the water inlet extends to the bottom of the box body, a liquid level indicator is provided in the water inlet, and an end cover is provided at the mouth of the water inlet; this patent can discharge the waste gas from heat treatment after treatment, reducing the impact of the waste gas on the environmental quality and the health of workers, and is suitable for popularization and application.

[0004] However, the above patents still have the following shortcomings: when the exhaust gas passes through water, the high temperature in the exhaust gas easily causes water vaporization, which will cause the water vapor and the exhaust gas to be discharged from the exhaust pipe together, and at the same time, the water vapor will be adsorbed on the activated carbon filter net in the filter box, affecting the effect of purifying the exhaust gas; and the impurities on the filter residue net need to be manually cleaned, which is not practical. For this reason, we propose an exhaust gas discharge mechanism for a box-type heating furnace. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide an exhaust gas discharge mechanism for a box-type heating furnace.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A waste gas emission mechanism of a box-type heating furnace comprises a box body, an exhaust mechanism is provided at one end of the box body, an exhaust fan is fixedly installed at the other end of the box body, an input end of the exhaust fan is fixedly connected to a cooling pipe, an output end of the exhaust fan extends to the inner cavity of the box body and is fixedly connected to an air inlet pipe, a filtering mechanism is provided at the end of the cooling pipe, an exhaust pipe is provided at the end of the filtering mechanism, a temperature conducting ring is fixedly sleeved on the outer side of the cooling pipe, a plurality of cooling fins are fixedly connected to the inner wall of the temperature conducting ring, the ends of the plurality of cooling fins extend to the inner cavity of the cooling pipe, a semiconductor refrigeration tube is fixedly installed on the outer side of the temperature conducting ring, a heat dissipation ring is fixedly sleeved on the outer side of the semiconductor refrigeration tube, a plurality of heat dissipation fins are fixedly connected to the outer side of the heat dissipation ring.

[0008] As a preferred scheme of the utility model, the filtering mechanism includes a filter cylinder fixedly sleeved on the end of the cooling pipe, the exhaust pipe is sleeved on the other end of the filter cylinder, the inner wall of the filter cylinder is provided with a filter screen, the end of the filter screen is rotatably connected to a wind wheel, the rotating shaft of the wind wheel extends to the outside of the filter screen and is fixedly connected to a scraper, the inner side surface of the scraper is in contact with the end surface of the filter screen, the bottom of the filter cylinder is fixedly connected to a dust collection screw tube, and the bottom end of the dust collection screw tube is threadedly installed with a dust collecting cover.

[0009] As a preferred solution of the utility model, the exhaust mechanism includes an exhaust pipe fixedly sleeved on one end of the box body, the end of the exhaust pipe is fixedly sleeved with an adsorption box, the end of the adsorption box is fixedly sleeved with an outlet pipe, the inner cavity of the adsorption box is provided with absorbent cotton, and the inner cavity of the adsorption box is provided with an activated carbon plate.

[0010] As a preferred solution of the utility model, a screw plug is threadedly installed on the top surface of the box body, and the bottom end of the screw plug extends to the inner cavity of the box body.

[0011] As a preferred solution of the utility model, a drain valve is fixedly installed on the side of the box body, and the end of the drain valve extends to the inner cavity of the box body.

[0012] As a preferred solution of the utility model, a sealing door is hinged on the side of the adsorption box.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] (1) In the utility model, the exhaust gas of the heating furnace is allowed to enter the water in the box through the cooling pipe and the air inlet pipe through the exhaust fan, and the oil smoke and small-diameter smoke in the exhaust gas are absorbed by the water. In addition, the exhaust gas flowing in the cooling pipe is cooled by the cooperation of the semiconductor refrigeration tube, the cooling fin and the temperature conducting ring to prevent the high-temperature exhaust gas from entering the water in the box and causing water vaporization. The exhaust gas is discharged through the exhaust pipe, the adsorption box and the exhaust pipe, and the water vapor and odor in the gas are adsorbed by the absorbent cotton and the activated carbon plate.

[0015] (2) In the utility model, impurities with larger diameters in the exhaust gas are filtered through the filter net in the filter cartridge. In addition, the suction force of the exhaust fan drives the wind wheel to rotate, and the rotation of the wind wheel drives the scraper to rotate. The scraper is used to clean the impurities filtered out of the filter net, and the impurities are collected through the dust collection spiral tube and the dust collecting cover, thereby ensuring the filtering effect of the filter net and the smoothness of gas passage, and having good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the filter cartridge of the utility model;

[0019] Figure 4 It is a cross-sectional schematic diagram of the temperature conducting ring of the utility model.

[0020] Description of the numbers in the figure:

[0021] 1. Box body; 2. Exhaust fan; 3. Cooling pipe; 4. Inlet pipe; 5. Filter mechanism; 6. Exhaust pipe; 7. Exhaust pipe; 8. Adsorption box; 9. Water-absorbing cotton; 10. Activated carbon plate; 11. Exhaust pipe; 12. Temperature conduction ring; 13. Cooling fins; 14. Semiconductor refrigeration tube; 15. Heat dissipation ring; 16. Heat dissipation fins; 17. Sealing door; 18. Filter cartridge; 19. Filter net; 20. Wind wheel; 21. Scraper; 22. Dust collection screw pipe; 23. Dust collecting cover; 24. Screw plug; 25. Drain valve; 26. Exhaust mechanism. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Example:

[0026] See also Figure 1-4 A waste gas emission mechanism of a box-type heating furnace comprises a box body 1, an exhaust mechanism 26 is arranged at one end of the box body 1, an exhaust fan 2 is fixedly installed at the other end of the box body 1, an input end of the exhaust fan 2 is fixedly connected to a cooling pipe 3, an output end of the exhaust fan 2 extends to the inner cavity of the box body 1 and is fixedly connected to an air inlet pipe 4, a filtering mechanism 5 is arranged at the end of the cooling pipe 3, an exhaust pipe 6 is arranged at the end of the filtering mechanism 5, a temperature conducting ring 12 is fixedly sleeved on the outer side of the cooling pipe 3, a plurality of cooling fins 13 are fixedly connected to the inner wall of the temperature conducting ring 12, the ends of the plurality of cooling fins 13 extend to the inner cavity of the cooling pipe 3, a semiconductor refrigeration tube 14 is fixedly installed on the outer side of the temperature conducting ring 12, a heat dissipation ring 15 is fixedly sleeved on the outer side of the semiconductor refrigeration tube 14, a plurality of heat dissipation fins 16 are fixedly connected to the outer side of the heat dissipation ring 15.

[0027] In this embodiment, water is provided in the inner cavity of the box body 1 .

[0028] For details, please refer to Figure 1 and Figure 3The filtering mechanism 5 includes a filter cartridge 18 fixedly sleeved on the end of the cooling pipe 3, and the exhaust pipe 6 is sleeved on the other end of the filter cartridge 18. A filter screen 19 is provided on the inner wall of the filter cartridge 18. The end of the filter screen 19 is rotatably connected to a wind wheel 20. The rotating shaft of the wind wheel 20 extends to the outside of the filter screen 19 and is fixedly connected to a scraper 21. The inner side surface of the scraper 21 is in contact with the end surface of the filter screen 19. A dust collecting screw pipe 22 is fixedly connected to the bottom of the filter cartridge 18, and a dust collecting cover 23 is threadedly installed on the bottom end of the dust collecting screw pipe 22.

[0029] In this embodiment, the side surface of the filter screen 19 fits with the inner wall of the filter cartridge 18, ensuring that the filter screen 19 can completely filter the exhaust gas.

[0030] For details, please refer to Figure 1 and Figure 2 The exhaust mechanism 26 includes an exhaust pipe 7 fixedly sleeved on one end of the box body 1, an adsorption box 8 is fixedly sleeved on the end of the exhaust pipe 7, an exhaust pipe 11 is fixedly sleeved on the end of the adsorption box 8, absorbent cotton 9 is arranged in the inner cavity of the adsorption box 8, and an activated carbon plate 10 is arranged in the inner cavity of the adsorption box 8.

[0031] In this embodiment, the absorbent cotton 9 is used to absorb the water vapor in the gas, and the activated carbon plate 10 is used to absorb the odor in the gas.

[0032] For details, please refer to Figure 1 A screw plug 24 is threadedly installed on the top surface of the box body 1, and the bottom end of the screw plug 24 extends to the inner cavity of the box body 1.

[0033] In this embodiment, water is added into the inner cavity of the housing 1 by removing the screw plug 24 .

[0034] For details, please refer to Figure 1 A drain valve 25 is fixedly installed on the side of the box body 1, and the end of the drain valve 25 extends to the inner cavity of the box body 1.

[0035] In this embodiment, the waste water in the box body 1 is discharged by opening the drain valve 25 .

[0036] For details, please refer to Figure 1 A sealing door 17 is hinged on the side of the adsorption box 8.

[0037] In this embodiment, the absorbent cotton 9 and the activated carbon plate 10 in the adsorption box 8 are replaced by opening the sealing door 17 .

[0038] Working principle: When in use, first connect the exhaust pipe 6 to the heating furnace, start the exhaust fan 2 to make the exhaust pipe 6 generate suction, so that the exhaust gas in the heating furnace is introduced into the water in the box 1 through the exhaust pipe 6, the filter cartridge 18, the cooling pipe 3 and the air inlet pipe 4, and then use the filter 19 to filter out the dust with a larger diameter in the exhaust gas. In addition, the wind force drives the wind wheel 20 to rotate, and the wind wheel 20 drives the scraper 21 to rotate, and the scraper 21 is used to scrape the dust filtered on the filter 19, so that the dust falls into the dust collecting cover 23 and is collected, and then the semiconductor refrigeration tube 14 is energized, through the temperature conducting ring 12 and the cooling fin 1 3 The cold energy generated by the cooling surface of the semiconductor refrigeration tube 14 is introduced into the cooling tube 3, and the exhaust gas is cooled by the contact between the cooling fins 13 and the exhaust gas in the cooling tube 3. The heat generated by the operation of the semiconductor refrigeration tube 14 is discharged through the heat dissipation ring 15 and the heat dissipation fins 16. In addition, the cooled exhaust gas in the cooling tube 3 enters the water in the box body 1, and the water is used to absorb the oil smoke and smoke with a smaller diameter in the exhaust gas. Finally, the exhaust gas is discharged through the exhaust pipe 7, the adsorption box 8 and the exhaust pipe 11. In addition, the water vapor in the exhaust gas is absorbed by the absorbent cotton 9, and the odor in the exhaust gas is absorbed and purified by the activated carbon plate 10.

[0039] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.

Claims

1. An exhaust gas discharge mechanism of a box-type heating furnace, comprising a box body (1), characterized in that: An exhaust mechanism (26) is provided at one end of the box body (1), and an exhaust fan (2) is fixedly installed at the other end of the box body (1). The input end of the exhaust fan (2) is fixedly connected to a cooling pipe (3), and the output end of the exhaust fan (2) extends to the inner cavity of the box body (1) and is fixedly connected to an air intake pipe (4). A filter mechanism (5) is provided at the end of the cooling pipe (3), and an exhaust pipe (6) is provided at the end of the filter mechanism (5). A thermal conductive ring (12) is fixedly sleeved on the outer side of the cooling pipe (3), and a plurality of cooling fins (13) are fixedly connected to the inner wall of the thermal conductive ring (12). The ends of the plurality of cooling fins (13) extend to the inner cavity of the cooling pipe (3). A semiconductor refrigeration tube (14) is fixedly installed on the outer side of the thermal conductive ring (12), and a heat dissipation ring (15) is fixedly sleeved on the outer side of the semiconductor refrigeration tube (14). The outer side of the heat dissipation ring (15) is fixedly connected to a plurality of heat dissipation fins (16).

2. The exhaust gas discharge mechanism of a box-type heating furnace according to claim 1, characterized in that: The filtering mechanism (5) comprises a filter cartridge (18) fixedly sleeved on the end of the cooling pipe (3); the exhaust pipe (6) is sleeved on the other end of the filter cartridge (18); the inner wall of the filter cartridge (18) is provided with a filter screen (19); the end of the filter screen (19) is rotatably connected to a wind wheel (20); the rotating shaft of the wind wheel (20) extends to the outside of the filter screen (19) and is fixedly connected to a scraper (21); the inner side surface of the scraper (21) is in contact with the end surface of the filter screen (19); the bottom of the filter cartridge (18) is fixedly connected to a dust collecting screw tube (22); the bottom end of the dust collecting screw tube (22) is threadedly mounted with a dust collecting cover (23).

3. The exhaust gas discharge mechanism of a box-type heating furnace according to claim 1, characterized in that: The exhaust mechanism (26) comprises an exhaust pipe (7) fixedly sleeved on one end of the box body (1); an adsorption box (8) is fixedly sleeved on the end of the exhaust pipe (7); an exhaust pipe (11) is fixedly sleeved on the end of the adsorption box (8); absorbent cotton (9) is arranged in the inner cavity of the adsorption box (8); and an activated carbon plate (10) is arranged in the inner cavity of the adsorption box (8).

4. The exhaust gas discharge mechanism of a box-type heating furnace according to claim 1, characterized in that: A screw plug (24) is threadedly mounted on the top surface of the box body (1), and the bottom end of the screw plug (24) extends to the inner cavity of the box body (1).

5. The exhaust gas discharge mechanism of a box-type heating furnace according to claim 1 is characterized in that: A drainage valve (25) is fixedly mounted on the side of the box body (1), and the end of the drainage valve (25) extends to the inner cavity of the box body (1).

6. The exhaust gas discharge mechanism of a box-type heating furnace according to claim 3 is characterized in that: A sealing door (17) is hinged on the side of the adsorption box (8).

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