A self-circulating cooling oil-water separation mesh belt furnace fan

Abstract

The invention discloses a self-circulating cooling oil-water separation mesh belt furnace fan. A high temperature resistant inner tank is mounted on the main shaft of the mesh belt furnace fan. The high temperature resistant inner tank is connected to a cooling static oil circulation outer tank through a cold oil input pipeline and a hot oil output pipeline. The cooling static oil circulation outer tank is provided with a refueling exhaust hole, an oil discharge port and a thermocouple for detecting the internal oil temperature. The cooling oil is injected into the cooling static oil circulation outer tank through the refueling exhaust hole and enters the high temperature resistant inner tank through the cold oil input pipeline. When the mesh belt furnace fan is started, the heat emitted by the mesh belt furnace itself is transferred to the high temperature resistant inner tank to heat the cooling oil inside. The cooling oil expands due to heat and flows through the cold oil input pipeline and the hot oil output pipeline to realize self-circulation. The water in the cooling oil is converted into steam and discharged through the refueling exhaust hole. The cooling oil separated from oil and water is discharged through the oil discharge port. The cooling oil has the advantages of self-lubrication, fast heat dissipation and maintenance-free. The cooling oil with high water content can automatically separate oil and water and be self-circulated and reused.

Description

Technical Field

[0001] The invention relates to the technical field of cooling and stirring of heat treatment equipment and oil-water quiescence, in particular to a self-circulating cooling oil-water separation mesh belt furnace fan. Background Art

[0002] Mesh belt furnace fans are widely used in continuous mesh belt furnaces, tempering mesh belt furnaces, pit furnaces and other equipment. The shortcomings of mesh belt furnace fans currently used are: 1. The fan is water-cooled, and water will accumulate after long-term use, causing blockage of the conveying pipeline, serious corrosion of the fan liner, short service life, and maintenance and replacement must be stopped. 2. After water cooling, a water cooling device needs to be established, which requires a large investment. 3. A large amount of water is consumed during the cooling process. Summary of the invention

[0003] The present invention aims to solve the technical problem of providing a self-circulating cooling oil-water separation mesh belt furnace fan in view of the deficiencies in the prior art. The traditional water cooling method is replaced by cooling oil, and the fan has the advantages of self-lubrication, fast heat dissipation and maintenance-free. The cooling oil with high water content can automatically separate oil and water and be self-circulated and reused.

[0004] The present invention solves the above technical problems through the following technical solutions.

[0005] A self-circulating cooling oil-water separation mesh belt furnace fan, a high-temperature resistant inner tank for cooling is installed on the main shaft of the mesh belt furnace fan, the high-temperature resistant inner tank is connected to a cooling static oil circulation outer tank through a cold oil input pipeline and a hot oil output pipeline, the cooling static oil circulation outer tank is provided with a filling exhaust hole, an oil discharge port and a thermocouple for detecting the internal oil temperature, the thermocouple is connected to a temperature controller, cooling oil is injected into the cooling static oil circulation outer tank through the filling exhaust hole and enters the high-temperature resistant inner tank through the cold oil input pipeline, when the mesh belt furnace fan is started, the heat emitted by the mesh belt furnace itself is transferred to the high-temperature resistant inner tank to heat the cooling oil inside, the cooling oil expands due to the heat and realizes self-circulation through the cold oil input pipeline and the hot oil output pipeline, the water in the cooling oil is converted into steam and discharged through the filling exhaust hole, and the cooling oil separated from oil and water is discharged through the oil discharge port.

[0006] The use of oil cooling has the effects of self-lubrication, fast heat dissipation and maintenance-free. The cooling oil used as the lubricating medium can be the quenching oil recycled from production. For the quenching oil with a high water content that has been used for a long time, the oil and water can be automatically separated and reused for heat treatment quenching.

[0007] Preferably, a filter is provided in the refueling vent hole for filtering solid impurities in the quenching oil.

[0008] Preferably, the high temperature resistant inner liner is made of stainless steel.

[0009] Preferably, the cooling oil is an oil with a flash point higher than 75 degrees or a quenching oil recovered from production.

[0010] Preferably, the temperature controller is connected to a recorder for recording the heating temperature and time.

[0011] Preferably, the refueling exhaust hole is located at the top of the cooling static oil circulation outer liner.

[0012] Preferably, the two ends of the cold oil input pipeline are respectively provided with a cold oil output pipe and a cold oil input pipe connected with the cooling static oil circulation outer tank and the high temperature resistant inner tank, and the two ends of the hot oil output pipeline are respectively provided with a hot oil input pipe and a hot oil output pipe connected with the cooling static oil circulation outer tank and the high temperature resistant inner tank.

[0013] Preferably, the cold oil output pipe extends to the bottom of the cooling static oil circulation outer tank, the hot oil input pipe extends to the middle of the cooling static oil circulation outer tank, the cold oil input pipe extends to the bottom of the high temperature resistant inner tank, and the hot oil output pipe extends to the middle of the high temperature resistant inner tank.

[0014] In summary, the self-circulating cooling oil-water separation mesh belt furnace fan of the present invention solves the problem that the water cooling time is long, causing water to form in the water pipe and the cooling sleeve in the fan, resulting in blockage and scrapping. The oil cooling method has the functions of self-lubrication, fast heat dissipation, and maintenance-free. It is simple and reliable, and increases the service life of the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are intended to facilitate the description of preferred embodiments and are not intended to limit the scope of protection of the present invention. Figure 1 It is a main structural schematic diagram of the present invention;

[0016] Figure 2 It is a schematic structural diagram of the cooling static oil circulation outer liner of the present invention.

[0017] In the figure: 1- oil filling and exhaust hole, 2- thermocouple, 3- temperature controller, 4- recorder, 5- cooling static oil circulation outer tank, 6- oil drain port, 7- mesh belt furnace fan, 8- high temperature resistant inner tank, 9- cold oil input pipeline, 10- hot oil output pipeline, 11- cold oil output connecting pipe, 12- cold oil input connecting pipe, 13- hot oil input connecting pipe, 14- hot oil output connecting pipe. DETAILED DESCRIPTION

[0018] In order to facilitate the understanding of the present invention, the present invention is described in detail below in conjunction with the preferred embodiments of the present invention given in the accompanying drawings.

[0019] like Figure 1 and Figure 2The present invention is shown as a self-circulating cooling oil-water separation mesh belt furnace fan. The mesh belt furnace fan 7 main shaft is equipped with a high-temperature resistant inner liner 8 for cooling. The high-temperature resistant inner liner 8 is made of high-temperature resistant stainless steel, for example. Under working conditions, it usually needs to withstand a high temperature of about 700 to 800 degrees. In the embodiment shown in the figure, the high-temperature resistant inner liner 8 is mounted on the outer side of the bearing on the main shaft to cool the bearing to achieve self-lubrication.

[0020] The high temperature resistant inner tank 8 is connected to the cooling static oil circulation outer tank 5 through the cold oil input pipeline 9 and the hot oil output pipeline 10. In a specific embodiment, the cold oil input pipeline 9 is provided with a cold oil output pipe 11 and a cold oil input pipe 12 respectively at both ends thereof, which are connected to the cooling static oil circulation outer tank 5 and the high temperature resistant inner tank 8, and the hot oil output pipe 13 and a hot oil output pipe 14 respectively at both ends thereof, which are connected to the cooling static oil circulation outer tank 5 and the high temperature resistant inner tank 8. In order to facilitate the circulation of the cooling oil mixed with the cold oil and the hot oil, and to facilitate the timely discharge of the water vapor in the hot oil, the cold oil output pipe 11 extends to the bottom of the cooling static oil circulation outer tank 5, the hot oil input pipe 13 extends to the middle and above the middle of the cooling static oil circulation outer tank 5, the cold oil input pipe 12 extends to the bottom of the high temperature resistant inner tank 8, and the hot oil output pipe 14 extends to the middle and above the middle of the high temperature resistant inner tank 8.

[0021] The cooling static oil circulation outer tank 5 is provided with a refueling vent 1, an oil discharge port 6 and a thermocouple 2 for detecting the internal oil temperature. The refueling vent 1 is provided with a filter for filtering solid impurities in the cooling oil. The thermocouple 2 is connected to a temperature controller 3, and the temperature controller 3 is connected to a recorder 4 for recording the heating temperature and time. In order to facilitate the discharge of water vapor, the refueling vent 1 is located at the top of the cooling static oil circulation outer tank 5.

[0022] The cooling oil can be quenching oil recycled from production. For quenching oil with a long service life and high water content, oil and water can be automatically separated and reused for heat treatment quenching. Other oils with a flash point higher than 75 degrees can also be used.

[0023] The cooling oil is injected into the cooling static oil circulation outer tank 5 through the refueling exhaust hole 1 and enters the high temperature resistant inner tank 8 through the cold oil input pipeline 9. When the mesh belt furnace fan 7 is started, the heat emitted by the mesh belt furnace itself is transferred to the high temperature resistant inner tank 8 to heat the cooling oil inside. The cooling oil is expanded by heat and atmospheric pressure, and self-circulation is realized through the cold oil input pipeline 9 and the hot oil output pipeline 10. The temperature value is monitored by the thermocouple 2, and the heating temperature and time are recorded by the recorder 4. After reaching a certain temperature, the water in the cooling oil is converted into steam and discharged through the refueling exhaust hole 1. After observing the time and temperature of the recorder 4, the cooling oil separated from oil and water is discharged through the oil discharge port 6 for production and processing, and the recovered quenching oil is automatically supplemented and repeated. In this way, the secondary quenching oil is reused through the waste heat, and the pipeline blockage and scrapping problems caused by the water cooling fan are solved, and the service life of the fan is improved.

[0024] The technical terms used in the present invention are only for the convenience of description and do not constitute a limitation of the present invention. The present invention is not limited to the preferred implementation modes described above, but various deformation and modified implementation modes based on the known technologies known to technicians in this technical field or the equivalent replacement of the prior art, which are based on the spirit or technical conception of the present invention, should be included in the protection scope of the present invention.

Claims

1. A self-circulating cooling oil-water separation mesh belt furnace fan, characterized by: A high temperature resistant inner tank for cooling is mounted on the main shaft of the mesh belt furnace fan. The high temperature resistant inner tank is connected to a cooling static oil circulation outer tank through a cold oil input pipeline and a hot oil output pipeline. The cooling static oil circulation outer tank is provided with a refueling exhaust hole, an oil discharge port and a thermocouple for detecting the internal oil temperature. The thermocouple is connected to a temperature controller. The cooling oil is injected into the cooling static oil circulation outer tank through the refueling exhaust hole and enters the high temperature resistant inner tank through the cold oil input pipeline. When the mesh belt furnace fan is started, the heat emitted by the mesh belt furnace itself is transferred to the high temperature resistant inner tank to heat the cooling oil inside. The cooling oil expands due to the heat and realizes self-circulation through the cold oil input pipeline and the hot oil output pipeline. The water in the cooling oil is converted into steam and discharged through the refueling exhaust hole. The cooling oil separated from the oil and water is discharged through the oil discharge port. The two ends of the cold oil input pipeline are respectively provided with a cold oil output pipe and a cold oil input pipe connected with the cooling static oil circulation outer tank and the high temperature resistant inner tank, and the two ends of the hot oil output pipeline are respectively provided with a hot oil input pipe and a hot oil output pipe connected with the cooling static oil circulation outer tank and the high temperature resistant inner tank; The cold oil output pipe extends into the bottom of the cooling static oil circulation outer tank, the hot oil input pipe extends into the middle of the cooling static oil circulation outer tank, the cold oil input pipe extends into the bottom of the high temperature resistant inner tank, and the hot oil output pipe extends into the middle of the high temperature resistant inner tank; A filter is provided in the refueling exhaust hole to filter solid impurities in the cooling oil; The high temperature resistant inner tank is made of stainless steel; The cooling oil adopts quenching oil recycled from production; The temperature controller is connected to a recorder for recording heating temperature and time; The cooling oil is injected into the cooling static oil circulation outer tank through the refueling exhaust hole and enters the high-temperature resistant inner tank through the cold oil input pipeline. When the mesh belt furnace fan is started, the heat emitted by the mesh belt furnace itself is transferred to the high-temperature resistant inner tank to heat the internal cooling oil. The cooling oil is expanded by heat and the atmospheric pressure is used to realize self-circulation through the cold oil input pipeline and the hot oil output pipeline. The temperature value is monitored by the thermocouple, and the heating temperature and time are recorded by the recorder. After reaching a certain temperature, the water in the cooling oil is converted into steam and discharged through the refueling exhaust hole. After observing the time and temperature of the recorder, the cooling oil that has been separated from oil and water is discharged through the oil drain port for production and processing. At the same time, the recovered quenching oil is automatically replenished and the cycle is repeated.

2. The self-circulating cooling oil-water separation mesh belt furnace fan according to claim 1 is characterized in that: The refueling exhaust hole is located at the top end of the cooling static oil circulation outer liner.

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