Tail gas emission system of vacuum sintering furnace

Abstract

The utility model discloses a vacuum sintering furnace tail gas emission system, including tail gas receiving pipe, gas delivery pipe, cooling ball, lengthened exhaust transmission pipe and circulating heat transfer cooling device, gas delivery pipe is provided on the tail gas receiving pipe, cooling ball and gas delivery pipe threaded connection, lengthened exhaust transmission pipe passes through cooling ball and is provided with circulating heat transfer cooling device, the circulating heat transfer cooling device is provided with circulating heat transfer cooling device, the circulating heat transfer cooling device is provided with circulating heat transfer cooling device, and the circulating heat transfer cooling device is provided with circulating heat transfer cooling device. One end of the circulating heat transfer cooling device is wound on the lengthened exhaust transmission pipe, and the other end of the circulating heat transfer cooling device is arranged below the lengthened exhaust transmission pipe. The utility model belongs to the technical field of sintering furnace tail gas emission, and particularly relates to a tail gas emission system of a vacuum sintering furnace, which effectively solves the problems of high temperature and large hidden danger of tail gas emitted by the vacuum sintering furnace in the current market, and the tail gas is completely cooled by a multi-stage cooling device and then is emitted, so that the exhausted cold gas is completely cooled, and the service life of the tail gas is prolonged. And potential safety hazards such as explosion are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of tail gas emission of sintering furnaces, in particular to a tail gas emission system of a vacuum sintering furnace. Background Art

[0002] A vacuum sintering furnace refers to a furnace that performs protective sintering on heated objects in a vacuum environment. There are many heating methods, such as resistance heating, induction heating, microwave heating, etc. After sintering, the exhaust gas in the furnace needs to be discharged. The existing discharge method has safety hazards. Since the exhaust gas temperature in the furnace is relatively high and there may be flammable gases, direct discharge will have the risk of explosion. At the same time, the temperature inside the existing sintering furnace cools down relatively slowly.

[0003] Patent No. (CN217929827U) discloses a vacuum sintering furnace exhaust gas emission system. By setting up a water tank, it helps to accelerate the cooling of the furnace body and avoid exhaust gas emission explosion. However, the vacuum sintering furnace emits a lot of exhaust gas, and the exhaust gas cannot be completely treated by just using a water tank, so the discharged exhaust gas already has a lot of temperature and hidden dangers. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model proposes a vacuum sintering furnace exhaust gas emission system, which effectively solves the problem that the exhaust gas emitted by the vacuum sintering furnace on the market is of high temperature and great hidden dangers. The exhaust gas is thoroughly cooled by a multi-stage cooling device before being discharged, so that the cold air after discharge is completely cooled, thereby avoiding safety hazards such as explosion.

[0005] The technical scheme adopted by the utility model is as follows: the utility model proposes a vacuum sintering furnace exhaust gas emission system, including an exhaust gas receiving pipe, an air delivery pipe, a cooling ball, an elongated exhaust transmission pipe and a circulating heat transfer cooling device, the air delivery pipe is arranged on the exhaust gas receiving pipe, the cooling ball and the air delivery pipe are threadedly connected, the elongated exhaust transmission pipe runs through the cooling ball, one end of the circulating heat transfer cooling device is wound around the elongated exhaust transmission pipe, and the other end of the circulating heat transfer cooling device is arranged below the elongated exhaust transmission pipe, the exhaust gas receiving pipe is used to connect and receive the exhaust gas, the air delivery pipe transmits the exhaust gas with temperature, the cooling ball performs primary cooling on the exhaust gas, the elongated exhaust transmission pipe is affected by the distance during the transmission process, and the exhaust gas realizes self-cooling, and on the other hand, the cooling purpose is achieved under the heat transfer of the circulating heat transfer cooling device, the circulating The annular heat transfer cooling device includes a threaded heat transfer water pipe, a water pipe support, a cooling water pumping motor, a heat exchange cooling water tank and a rapid cooling downpipe, wherein the threaded heat transfer water pipe is wound around the elongated exhaust transmission pipe, the water pipe support is connected to the threaded heat transfer water pipe, the cooling water pumping motor is arranged on the threaded heat transfer water pipe, the heat exchange cooling water tank is arranged on the cooling water pumping motor, the cooling water pumping motor and the heat exchange cooling water tank are connected, one end of the rapid cooling downpipe is connected to the threaded heat transfer water pipe, and the other end of the rapid cooling downpipe is connected to the heat exchange cooling water tank. After the cooling water pumping motor is turned on, the water in the heat exchange cooling water tank is pumped out through the threaded heat transfer water pipe and spirally rises around the elongated exhaust transmission pipe to achieve the purpose of heat transfer, and the cooled water falls rapidly through the rapid cooling downpipe to be collected and cooled.

[0006] Preferably, the extended exhaust transmission pipe is provided with an exhaust pipe, and the exhaust pipe realizes the exhaust function.

[0007] Furthermore, a control valve is provided on the extended exhaust transmission pipe, and the control valve is arranged on a side close to the cooling ball, and the control valve plays a role in controlling opening and closing.

[0008] Furthermore, the cooling ball is provided with a water inlet pipe, the cooling ball is provided with a drain pipe, the drain pipe is arranged below the water inlet pipe, and the water inlet pipe and the drain pipe are used to replace the water in the cooling ball.

[0009] In addition, the cooling ball is provided with a water temperature observation meter, which is used to observe the water temperature in the cooling ball.

[0010] Among them, the cooling ball is arranged in a hollow sphere, and the cooling ball is symmetrically arranged in two groups. The extended exhaust transmission pipe and the air transmission pipe are arranged in an inverted concave shape. The threaded heat transfer water pipe is arranged in an L-shaped spiral pipe, and the threaded heat transfer water pipe is symmetrically arranged in two groups. The heat exchange cooling water tank is symmetrically arranged in two groups, and the rapid cooling downpipe is symmetrically arranged in two groups.

[0011] The beneficial effects achieved by the utility model using the above structure are as follows: The vacuum sintering furnace exhaust gas emission system proposed in this scheme effectively solves the problem of high exhaust gas temperature and great hidden dangers emitted by vacuum sintering furnaces on the current market. The exhaust gas is thoroughly cooled by a multi-stage cooling device before being discharged, so that the cold air after discharge is completely cooled, avoiding safety hazards such as explosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of a vacuum sintering furnace tail gas emission system proposed by the utility model;

[0013] Figure 2 This is a front view of a tail gas emission system for a vacuum sintering furnace proposed by the utility model.

[0014] Among them, 1. exhaust gas receiving pipe, 2. gas transmission pipe, 3. cooling ball, 4. extended exhaust transmission pipe, 5. circulating heat transfer cooling device, 6. threaded heat transfer water pipe, 7. water pipe support, 8. cooling pumping motor, 9. heat exchange cooling water tank, 10. rapid cooling downpipe, 11. exhaust pipe, 12. control valve, 13. water inlet pipe, 14. drain pipe, 15. water temperature observation meter. DETAILED DESCRIPTION

[0015] The technical solutions in the embodiments of the utility model will be clearly and completely described below 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, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0016] like Figure 1 and Figure 2As shown, the utility model proposes a vacuum sintering furnace exhaust gas emission system, including an exhaust gas receiving pipe 1, an air delivery pipe 2, a cooling ball 3, an elongated exhaust transmission pipe 4 and a circulating heat transfer cooling device 5. The air delivery pipe 2 is arranged on the exhaust gas receiving pipe 1, the cooling ball 3 and the air delivery pipe 2 are threadedly connected, the elongated exhaust transmission pipe 4 runs through the cooling ball 3, one end of the circulating heat transfer cooling device 5 is wound around the elongated exhaust transmission pipe 4, and the other end of the circulating heat transfer cooling device 5 is arranged below the elongated exhaust transmission pipe 4. The exhaust gas receiving pipe 1 is used to connect and receive the exhaust gas, the air delivery pipe 2 transmits the exhaust gas with temperature, the cooling ball 3 performs primary cooling on the exhaust gas, the elongated exhaust transmission pipe 4 is affected by the distance during the transmission process, and the exhaust gas realizes self-cooling, and on the other hand, the cooling purpose is achieved under the heat transfer of the circulating heat transfer cooling device 5. 5 comprises a threaded heat transfer water pipe 6, a water pipe support 7, a cooling pumping motor 8, a heat exchange cooling water tank 9 and a rapid cooling downpipe 10. The threaded heat transfer water pipe 6 is wound around the elongated exhaust transmission pipe 4. The water pipe support 7 is connected to the threaded heat transfer water pipe 6. The cooling pumping motor 8 is arranged on the threaded heat transfer water pipe 6. The heat exchange cooling water tank 9 is arranged on the cooling pumping motor 8. The cooling pumping motor 8 and the heat exchange cooling water tank 9 are arranged through. One end of the rapid cooling downpipe 10 is connected to the threaded heat transfer water pipe 6. The other end of the rapid cooling downpipe 10 is arranged through the heat exchange cooling water tank 9. After the cooling pumping motor 8 is turned on, the water in the heat exchange cooling water tank 9 is pumped out through the threaded heat transfer water pipe 6 and spirally rises around the elongated exhaust transmission pipe 4 to achieve the purpose of heat transfer. The cooled water falls rapidly through the rapid cooling downpipe 10 to be collected and cooled.

[0017] like Figure 1 and Figure 2 As shown, the extended exhaust transmission pipe 4 is provided with an exhaust pipe 11, and the exhaust pipe 11 realizes the exhaust function.

[0018] like Figure 1 and Figure 2 As shown, a control valve 12 is provided on the extended exhaust transmission pipe 4. The control valve 12 is provided on a side close to the cooling ball 3. The control valve 12 plays a role in controlling the opening and closing.

[0019] like Figure 1 and Figure 2 As shown, the cooling ball 3 is provided with a water inlet pipe 13 , and the cooling ball 3 is provided with a drain pipe 14 , which is arranged below the water inlet pipe 13 . The water inlet pipe 13 and the drain pipe 14 are used to replace the water in the cooling ball 3 .

[0020] like Figure 1 and Figure 2 As shown, a water temperature observation meter 15 is provided on the cooling ball 3 , and the water temperature observation meter 15 is used to observe the water temperature in the cooling ball 3 .

[0021] like Figure 1 and Figure 2 As shown, the cooling ball 3 is arranged as a hollow sphere, and the cooling ball 3 is symmetrically arranged in two groups. The extended exhaust transmission pipe 4 and the gas transmission pipe 2 form an inverted concave shape. The threaded heat transfer water pipe 6 is arranged as an L-shaped spiral pipe, and the threaded heat transfer water pipe 6 is symmetrically arranged in two groups. The heat exchange cooling water tank 9 is symmetrically arranged in two groups, and the rapid cooling downpipe 10 is symmetrically arranged in two groups.

[0022] During specific use, the exhaust gas receiving pipe 1 is installed on the exhaust gas emission pipe of the hollow sintering furnace. The exhaust gas emitted in the vacuum sintering furnace carries a large amount of waste heat and needs to be cooled before being discharged. Otherwise, scalding incidents are very likely to occur. After installation, the exhaust gas is discharged into the air pipe 2 through the exhaust gas receiving pipe 1, and is transferred to the cooling ball 3 by the air pipe 2. The cooling water in the cooling ball 3 is used for cooling, and the water temperature observation meter 15 can observe the temperature in the cooling ball 3. When the temperature is not suitable, the water is changed through the water inlet pipe 13 and the drain pipe 14; the exhaust gas cooled by the cooling ball 3 enters the extended exhaust transmission pipe 4 from the opened control valve 12, and is transmitted in the extended exhaust transmission pipe 4. Since the length of the extended exhaust transmission pipe 4 is too long, the exhaust gas is transmitted during transmission. Self-cooling can be achieved during the transmission process. In addition, the user turns on the cooling water pumping motor 8 to pump the water in the heat exchange cooling water tank 9 out of the cooling water pumping motor 8, and transmits it from the threaded heat transfer water pipe 6 after pressurization, and spirally rises around the extended exhaust transmission pipe 4 in a spiral shape, and performs heat transfer on the hot exhaust gas in the extended exhaust transmission pipe 4, so that the exhaust gas in the extended exhaust transmission pipe 4 is completely cooled and discharged through the exhaust pipe 11, and the water after heat transfer drops sharply into the heat exchange cooling water tank 9 through the rapid cooling downpipe 10. The water temperature drops under the rapid action, and the water in the heat exchange cooling water tank 9 can be replaced after using it for a period of time. The above is the usage process of the entire vacuum sintering furnace exhaust gas emission system.

[0023] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0024] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A vacuum sintering furnace tail gas emission system, characterized in that: The invention comprises an exhaust gas receiving pipe, an air delivery pipe, a cooling ball, an elongated exhaust transmission pipe and a circulating heat transfer cooling device, wherein the air delivery pipe is arranged on the exhaust gas receiving pipe, the cooling ball is threadedly connected to the air delivery pipe, the elongated exhaust transmission pipe passes through the cooling ball, one end of the circulating heat transfer cooling device is wound around the elongated exhaust transmission pipe, and the other end of the circulating heat transfer cooling device is arranged below the elongated exhaust transmission pipe, the circulating heat transfer cooling device comprises a threaded heat transfer water pipe, a water pipe support, a cooling ball A water pumping motor, a heat exchange cooling water tank and a rapid cooling downpipe, the threaded heat transfer water pipe is wound around the extended exhaust transmission pipe, the water pipe support is connected to the threaded heat transfer water pipe, the cooling water pumping motor is arranged on the threaded heat transfer water pipe, the heat exchange cooling water tank is arranged on the cooling water pumping motor, the cooling water pumping motor and the heat exchange cooling water tank are connected, one end of the rapid cooling downpipe is connected to the threaded heat transfer water pipe, and the other end of the rapid cooling downpipe is connected to the heat exchange cooling water tank.

2. The tail gas exhaust system of a vacuum sintering furnace according to claim 1, characterized in that: An exhaust pipe is arranged on the elongated exhaust transmission pipe.

3. The tail gas exhaust system of a vacuum sintering furnace according to claim 1, characterized in that: The extended exhaust transmission pipe is provided with a control valve, and the control valve is arranged on a side close to the cooling ball.

4. The tail gas exhaust system of a vacuum sintering furnace according to claim 1, characterized in that: The cooling ball is provided with a water inlet pipe, and the cooling ball is provided with a drain pipe, and the drain pipe is arranged below the water inlet pipe.

5. The tail gas exhaust system of a vacuum sintering furnace according to claim 1, characterized in that: The cooling ball is provided with a water temperature observation meter.

6. The tail gas exhaust system of a vacuum sintering furnace according to claim 1, characterized in that: The cooling ball is a hollow sphere, and two groups of cooling balls are symmetrically arranged. The extended exhaust transmission pipe and the air delivery pipe form an inverted concave shape, and the threaded heat transfer water pipe is an L-shaped spiral pipe. The threaded heat transfer water pipes are symmetrically provided in two groups, and the heat exchange cooling water tanks are symmetrically provided in two groups. The rapid cooling downpipes are symmetrically provided with two groups.

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