Waste gas recycling device for bolt heat treatment furnace

Abstract

The utility model relates to the technical field of bolt heat treatment furnaces, in particular to a waste gas recycling device of a bolt heat treatment furnace, which comprises a heat treatment furnace main body, and one side of the heat treatment furnace main body is communicated with an exhaust pipe; the filtering mechanism capable of quickly and efficiently filtering the waste gas to improve the waste gas recycling effect is arranged on one side of the heat treatment furnace main body; by arranging the filtering mechanism, an exhaust fan in a conveying pipe can convey waste gas into a water tank, water flow in the water tank can filter pollutants and particles in the waste gas, and two filter screens in the water tank can collect impurities filtered from the waste gas; wherein the bamboo charcoal adsorbent between one group of filter plates can effectively adsorb organic pollutants and volatile organic compounds in waste gas, and the activated carbon adsorbent between the other group of filter plates can filter harmful gas in the waste gas, so that the waste gas can be quickly and efficiently filtered and purified, and the recycling effect of the waste gas is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt heat treatment furnaces, in particular to a waste gas recycling device of a bolt heat treatment furnace. Background Art

[0002] Bolts, mechanical parts, cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw (a cylinder with external threads), which needs to be matched with a nut to fasten two parts with through holes. When producing and processing bolts, a heat treatment furnace is required to process them. A large amount of waste gas is generated during the heat treatment of bolts, and a waste gas recycling device is required to recycle the waste gas.

[0003] After searching the Chinese patent "A waste gas recycling device for a heat treatment furnace", the publication number is "CN214415837U". This patent can effectively purify the waste gas by setting a purification box, a motor, a waste heat recovery device, a filter mesh transmission component and a delivery pipe, etc., wherein the filter mesh transmission component can effectively perform double filtering on the waste gas. In addition, the setting of the filter plate can further purify the waste gas. The setting of the purification box, the motor, the waste heat recovery device, the filter mesh transmission component and the delivery pipe can effectively recycle the waste heat in the waste gas, thereby effectively saving energy. The setting of the cleaning mechanism makes it convenient for the staff to clean the filter of the filter mesh transmission component. However, the filtering and purification effect of the device on the waste gas is not ideal, and it is not convenient to filter the waste gas efficiently, which reduces the filtering effect of the device.

[0004] Therefore, a bolt heat treatment furnace exhaust gas recycling device is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a bolt heat treatment furnace exhaust gas recycling device in order to solve the above-mentioned problem, thereby improving the problem of inconvenience in efficiently filtering the exhaust gas.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: a waste gas recycling device for a bolt heat treatment furnace, comprising a heat treatment furnace main body, one side of the heat treatment furnace main body is connected to an exhaust pipe; a filtering mechanism, which can quickly and efficiently filter the waste gas to improve the waste gas recycling effect, and the filtering mechanism is arranged on one side of the heat treatment furnace main body; wherein, the filtering mechanism comprises a conveying pipe connected to the bottom of one end of the exhaust pipe, a water tank is arranged on one side of the heat treatment furnace main body, a top cover is clamped on the top of the water tank, one end of the conveying pipe passes through the top cover and extends to the inside of the water tank, one side of the top of the top cover is connected to two conduits, and the inner wall of the exhaust pipe is provided with a recovery component.

[0007] Preferably, the filtering mechanism also includes two filter screens fixedly connected to the bottom end of the top cover, one end of the delivery pipe is arranged between the two filter screens, a connecting pipe is arranged between the two conduits, and the inner wall of the connecting pipe is provided with two groups of filter plates, the number of filter plates in one group is two, a bamboo charcoal adsorbent is arranged between two of the filter plates, and an activated carbon adsorbent is arranged between the other two filter plates. The delivery pipe has a certain degree of elasticity and can move with the movement of the top cover and the filter screen. A filter screen structure is provided at the connection between the delivery pipe and the exhaust pipe, which can quickly and effectively filter and purify the exhaust gas, thereby improving the reuse effect of the exhaust gas.

[0008] Preferably, both ends of the connecting tube are rotatably connected with a fixing cylinder, and the fixing cylinder is threadedly connected to the conduit, so that the bamboo charcoal adsorbent and the activated carbon adsorbent can be replaced, thereby improving the use effect of the device.

[0009] Preferably, the conveying pipe and the inner wall of one of the conduits are both rotatably connected with an exhaust fan, which can quickly convey the exhaust gas and improve the filtering efficiency of the exhaust gas.

[0010] Preferably, the top cover is fixedly connected to both sides of the water tank with fixed blocks, one side of the water tank is rotatably connected to a screw rod, and the other side of the water tank is provided with a telescopic rod, the screw rod and the telescopic rod are both arranged on the inner walls of two of the fixed blocks, the screw rod is threadedly connected to one of the fixed blocks, and one end of the screw rod is rotatably connected to one of the fixed blocks, so as to facilitate the cleaning of the two filters in the water tank and improve the filtering effect of the filters.

[0011] Preferably, the recovery component includes a heat exchange tube arranged on the inner wall of the exhaust pipe, and a waste heat recovery device is arranged on the top of the heat treatment furnace body. The two ends of the heat exchange tube are respectively connected to the two sides of the outer wall of the waste heat recovery device, which can effectively recover the heat in the exhaust gas and improve the utilization rate of the exhaust gas.

[0012] Preferably, one end of the exhaust pipe is threadedly connected to a threaded barrel, one end of the threaded barrel is fixedly connected to a fixing rod, and one end of the fixing rod is fixedly connected to a cleaning plate, which can clean impurities accumulated in the exhaust pipe and improve the waste heat recovery effect of the device.

[0013] Preferably, a fixing plate is fixedly connected to the bottom of one end of the exhaust pipe, and a collecting plate is clamped at one end of the fixing plate to collect impurities cleaned out of the exhaust pipe, and the collecting plate can be removed by cooperating with the fixing plate.

[0014] The beneficial effects of the utility model are:

[0015] By setting up a filtering mechanism, when the exhaust gas is filtered, purified and reused, the exhaust fan in the delivery pipe can transport the exhaust gas to the water tank, the water flow in the water tank can filter the pollutants and particles in the exhaust gas, and the two filters in the water tank can collect the impurities filtered out of the exhaust gas. The bamboo charcoal adsorbent between one set of filter plates can effectively adsorb organic pollutants and volatile organic compounds in the exhaust gas, and the activated carbon adsorbent between the other set of filter plates can filter and purify harmful gases in the exhaust gas. The exhaust fan in one of the ducts can transport the gas in the water tank, the bamboo charcoal adsorbent and the activated carbon adsorbent can be replaced by rotating the fixed cylinder, and the rotating screw can drive the filter to move upward to clean the impurities on the filter. The exhaust gas can be filtered and purified quickly and efficiently, thereby improving the reuse effect of the exhaust gas.

[0016] By setting up a recovery component, when the exhaust gas is filtered and reused, the heat exchange tube wrapped around the inner wall of the exhaust pipe can absorb the heat in the exhaust gas through the circulation of water, and the heat in the exhaust gas is absorbed and utilized to improve the utilization efficiency of the exhaust gas. The inner wall of the exhaust pipe has a good thermal conductivity. The heat exchange tube transports the heat in the water flow to the waste heat recovery device for heat exchange. The cooled water flow is transported to the heat exchange tube again, and the threaded cylinder is rotated to drive the cleaning plate at one end of the fixed rod to clean the impurities accumulated in the exhaust pipe, thereby improving the use effect of the exhaust pipe. The collection plate can collect and clean the impurities in the exhaust pipe, and can recover the heat in the exhaust gas to improve the utilization efficiency of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0019] Figure 3 for Figure 2 A magnified view of middle;

[0020] Figure 4 It is a partial structural schematic diagram of the filtering mechanism of the utility model;

[0021] Figure 5 This is a schematic diagram of the recycling component structure of the utility model.

[0022] In the figure: 1. heat treatment furnace body; 2. exhaust pipe; 3. filtering mechanism; 301. delivery pipe; 302. water tank; 303. top cover; 304. conduit; 305. filter screen; 306. connecting pipe; 307. filter plate; 308. bamboo charcoal adsorbent; 309. activated carbon adsorbent; 310. fixed cylinder; 311. exhaust fan; 312. fixed block; 313. screw rod; 314. telescopic rod; 315. recovery component; 3151. heat exchange tube; 3152. waste heat recovery device; 3153. threaded cylinder; 3154. fixed rod; 3155. cleaning plate; 3156. fixed plate; 3157. collecting plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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.

[0024] When implementing: Figure 1-5 As shown, a waste gas recycling device for a bolt heat treatment furnace comprises a heat treatment furnace body 1, one side of the heat treatment furnace body 1 is connected to an exhaust pipe 2; a filtering mechanism 3, which can quickly and efficiently filter the waste gas to improve the waste gas recycling effect, is arranged on one side of the heat treatment furnace body 1; wherein, the filtering mechanism 3 includes a delivery pipe 301 connected to the bottom of one end of the exhaust pipe 2, a water tank 302 is arranged on one side of the heat treatment furnace body 1, a top cover 303 is clamped on the top of the water tank 302, one end of the delivery pipe 301 passes through the top cover 303 and extends to the inside of the water tank 302, one side of the top of the top cover 303 is connected to two conduits 304, and a recovery component 315 is arranged on the inner wall of the exhaust pipe 2.

[0025] like Figure 2 , Figure 3 and Figure 4As shown, the filtering mechanism 3 also includes two filter screens 305 fixedly connected to the bottom end of the top cover 303, one end of the delivery pipe 301 is arranged between the two filter screens 305, a connecting pipe 306 is arranged between the two conduits 304, and the inner wall of the connecting pipe 306 is provided with two groups of filter plates 307, the number of one group of filter plates 307 is two, a bamboo charcoal adsorbent 308 is arranged between the two filter plates 307, and an activated carbon adsorbent 309 is arranged between the other two filter plates 307, and both ends of the connecting pipe 306 are rotatable. The top cover 303 is connected to a fixed cylinder 310, which is threadedly connected to the conduit 304. The delivery pipe 301 and the inner wall of one of the conduits 304 are both rotatably connected to an exhaust fan 311. The top cover 303 and both sides of the water tank 302 are fixedly connected to fixed blocks 312. One side of the water tank 302 is rotatably connected to a screw rod 313. The other side of the water tank 302 is provided with a telescopic rod 314. The screw rod 313 and the telescopic rod 314 are both arranged on the inner walls of two of the fixed blocks 312. The screw rod 313 is connected to one of the fixed blocks 312. The fixed block 312 is threadedly connected, and one end of the screw rod 313 is rotatably connected to one of the fixed blocks 312. One of the exhaust fans 311 rotates to generate suction to transport the exhaust gas to the water tank 302, and the water flow in the water tank 302 filters the particles and pollutants in the exhaust gas. Another exhaust fan 311 in one of the conduits 304 transports the gas in the water tank 302 to the connecting pipe 306, and the bamboo charcoal adsorbent 308 and the activated carbon adsorbent 309 cooperate to filter and purify the harmful substances in the exhaust gas. The other conduit 304 is connected to the external exhaust gas collection device to collect the exhaust gas. The rotating fixed cylinder 310 is threadedly connected to the conduit 304 to disassemble the connecting pipe 306 to replace the bamboo charcoal adsorbent 308 and the activated carbon adsorbent 309. The rotating screw rod 313 is threadedly connected to one of the fixed blocks 312 to drive the filter screen 305 at the bottom of the top cover 303 to move upward to clean the impurities on the filter screen 305, so that the exhaust gas can be filtered and purified quickly and efficiently, and the reuse effect of the exhaust gas is improved.

[0026] like Figure 5As shown, the recovery component 315 includes a heat exchange tube 3151 arranged on the inner wall of the exhaust pipe 2, a waste heat recovery device 3152 is arranged on the top of the heat treatment furnace body 1, and the two ends of the heat exchange tube 3151 are respectively connected to the two sides of the outer wall of the waste heat recovery device 3152, one end of the exhaust pipe 2 is threadedly connected to a threaded cylinder 3153, one end of the threaded cylinder 3153 is fixedly connected to a fixing rod 3154, one end of the fixing rod 3154 is fixedly connected to a cleaning plate 3155, and the bottom of one end of the exhaust pipe 2 is fixedly connected to a fixing plate 3156, and the fixing plate 3156 is fixedly connected to the bottom of the exhaust pipe 2. One end of 56 is clamped with a collecting plate 3157. When the exhaust gas passes through the exhaust pipe 2, the heat exchange tube 3151 absorbs the heat in the exhaust gas, and the heat exchange tube 3151 cooperates with the waste heat recovery device 3152 to exchange heat, and then the cooled water flow is transported to the heat exchange tube 3151. The threaded cylinder 3153 is rotated to be connected with the exhaust pipe 2 threadedly and moved to one end to drive the cleaning plate 3155 to clean the impurities in the exhaust pipe 2, and collect them in the collecting plate 3157. The heat in the exhaust gas can be recovered, thereby improving the utilization efficiency of the exhaust gas.

[0027] When the utility model is in use, two exhaust fans 311 are started by a controller to start operation, one of the exhaust fans 311 rotates to transport the exhaust gas to the water tank 302, and the water flow in the water tank 302 filters the impurities in the exhaust gas. Another exhaust fan 311 in one of the conduits 304 transports the gas in the water tank 302 to the connecting pipe 306, and the bamboo charcoal adsorbent 308 and the activated carbon adsorbent 309 cooperate to filter and purify the harmful substances in the exhaust gas. The rotating fixed cylinder 310 is threadedly connected with the conduit 304 to disassemble the connecting pipe 306 to replace the bamboo charcoal adsorbent 308 and the activated carbon adsorbent 309. The screw rod 313 is threadedly connected to one of the fixed blocks 312, which can drive the filter 305 at the bottom of the top cover 303 to move upward to clean the impurities on the filter 305. When the exhaust gas passes through the exhaust pipe 2, the heat exchange tube 3151 absorbs the heat in the exhaust gas, and the heat exchange tube 3151 then transports the heat in the water flow to the waste heat recovery device 3152 for heat exchange, and then transports the cooled water flow to the heat exchange tube 3151. The threaded cylinder 3153 is threadedly connected to the exhaust pipe 2 and moves toward one end to drive the cleaning plate 3155 to clean the impurities in the exhaust pipe 2 and clean them into the collecting plate 3157.

[0028] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A bolt heat treatment furnace exhaust gas recycling device, characterized in that: include: A heat treatment furnace body (1), one side of the heat treatment furnace body (1) being connected to an exhaust pipe (2); A filtering mechanism (3) capable of quickly and efficiently filtering the waste gas to improve the waste gas recycling effect, wherein the filtering mechanism (3) is arranged on one side of the heat treatment furnace body (1); The filtering mechanism (3) comprises a delivery pipe (301) connected to the bottom of one end of the exhaust pipe (2); a water tank (302) is provided on one side of the heat treatment furnace body (1); a top cover (303) is clamped on the top of the water tank (302); one end of the delivery pipe (301) passes through the top cover (303) and extends to the inside of the water tank (302); one side of the top of the top cover (303) is connected to two conduits (304); and a recovery component (315) is provided on the inner wall of the exhaust pipe (2).

2. The exhaust gas recycling device for a bolt heat treatment furnace according to claim 1 is characterized in that: The filtering mechanism (3) further comprises two filter screens (305) fixedly connected to the bottom end of the top cover (303); one end of the delivery pipe (301) is arranged between the two filter screens (305); a connecting pipe (306) is arranged between the two guide tubes (304); two groups of filter plates (307) are arranged on the inner wall of the connecting pipe (306); the number of filter plates (307) in one group is two; a bamboo charcoal adsorbent (308) is arranged between two of the filter plates (307); and an activated carbon adsorbent (309) is arranged between the other two filter plates (307).

3. The exhaust gas recycling device for a bolt heat treatment furnace according to claim 2 is characterized in that: Both ends of the connecting tube (306) are rotatably connected to a fixing tube (310), and the fixing tube (310) is threadedly connected to the conduit (304).

4. The exhaust gas recycling device for a bolt heat treatment furnace according to claim 1 is characterized in that: The conveying pipe (301) and the inner wall of one of the guide tubes (304) are both rotatably connected with an exhaust fan (311).

5. The exhaust gas recycling device for a bolt heat treatment furnace according to claim 1 is characterized in that: The top cover (303) and both sides of the water tank (302) are fixedly connected with fixed blocks (312); one side of the water tank (302) is rotatably connected with a screw rod (313); the other side of the water tank (302) is provided with a telescopic rod (314); the screw rod (313) and the telescopic rod (314) are both arranged on the inner walls of two of the fixed blocks (312); the screw rod (313) is threadedly connected to one of the fixed blocks (312); and one end of the screw rod (313) is rotatably connected to one of the fixed blocks (312).

6. The exhaust gas recycling device for a bolt heat treatment furnace according to claim 1 is characterized in that: The recovery component (315) comprises a heat exchange tube (3151) arranged on the inner wall of the exhaust pipe (2), a waste heat recovery device (3152) is arranged at the top of the heat treatment furnace body (1), and the two ends of the heat exchange tube (3151) are respectively connected to the two sides of the outer wall of the waste heat recovery device (3152).

7. The exhaust gas recycling device for a bolt heat treatment furnace according to claim 6 is characterized in that: One end of the exhaust pipe (2) is threadedly connected to a threaded barrel (3153), one end of the threaded barrel (3153) is fixedly connected to a fixing rod (3154), and one end of the fixing rod (3154) is fixedly connected to a cleaning plate (3155).

8. The exhaust gas recycling device for a bolt heat treatment furnace according to claim 1 is characterized in that: A fixing plate (3156) is fixedly connected to the bottom of one end of the exhaust pipe (2), and a collecting plate (3157) is clamped on one end of the fixing plate (3156).

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