Well type annealing furnace for processing non-ferrous metal copper

Abstract

The invention relates to the technical field of metal processing equipment, and discloses a well type annealing furnace for nonferrous metal copper processing, which comprises a metal annealing furnace assembly, an exhaust assembly is fixedly mounted at the upper end of the metal annealing furnace assembly, a cooling assembly is fixedly mounted on the outer side of the metal annealing furnace assembly, and a purification assembly is fixedly connected to the outer end of the exhaust assembly. The metal annealing furnace assembly comprises an annealing furnace wall, electric heating resistance wires which are evenly distributed are arranged on the inner side wall face of the annealing furnace wall, a furnace base is fixedly installed at the bottom end of the annealing furnace wall, a furnace top plate is fixedly installed at the upper end of the annealing furnace wall, an in-wall cavity is formed in the inner wall of the annealing furnace wall, and an installation column casing is fixedly installed at the upper end of the furnace top plate. And base holes are evenly distributed in the furnace base, the exhaust assembly comprises a mounting hole plate, the mounting hole plate is fixedly connected to the inner wall of the bottom end of the mounting column casing in a sleeving mode, and the device has the cooling function of combining air cooling and water cooling and has a certain environment-friendly function.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing equipment, and more specifically to a pit annealing furnace for processing nonferrous metal copper. Background Art

[0002] The pit annealing furnace heats the metal workpiece to a certain temperature and then slowly cools it to change the metal's structure and properties. The pit annealing furnace is a commonly used equipment for metal processing and heat treatment. Its name comes from its shape similar to a well. The furnace body usually consists of a vertical cylindrical furnace and a wellhead with an opening on the top.

[0003] The working process of the pit annealing furnace mainly includes the following steps: the metal workpiece is placed in the furnace, and then the workpiece is heated to the required annealing temperature by a heat source such as a resistance heater or a gas flame. Once the target temperature is reached, the workpiece will be kept at this temperature for a period of time to ensure that the heat is evenly transferred to the entire workpiece. During the annealing process, the workpiece is kept in the furnace for a certain period of time so that the stress inside the material can be released and the organizational structure can be adjusted. After the annealing is completed, the workpiece will be cooled at a certain rate, usually slowly, to avoid internal stress caused by rapid cooling. This process helps the metal material achieve the desired physical and mechanical properties. The pit annealing furnace can also provide certain protective gases, such as nitrogen or hydrogen, to prevent oxidation or other chemical reactions on the metal surface, which helps to maintain the surface quality and performance of the metal workpiece;

[0004] However, the pit annealing furnace under the existing technology still has the following shortcomings in actual use:

[0005] First, when the pit-type annealing furnace under the prior art is in use, in order to slowly cool the workpiece in the furnace, the heating power supply is generally turned off directly to allow the furnace body to cool naturally. This process is suitable for situations where rapid cooling is not required. However, when the workpiece in the furnace needs to be cooled quickly, a cooling medium needs to be introduced into the furnace body. The air flow can cool the air environment inside the furnace body, and the cooling water can cool the wall of the furnace body. However, the pit-type annealing furnace under the prior art does not have a cooling function that combines the cooling of the inner wall of the furnace body with the cooling of the internal environment of the furnace body.

[0006] Secondly, when the pit-type annealing furnace under the existing technology is in use, it often emits a large amount of high-temperature polluted gas to the outside world. These high-temperature gases will carry a large amount of impurity particles. These impurity particles will pollute the external environment when discharged to the outside world. However, the pit-type annealing furnace under the existing technology does not have certain environmental protection functions;

[0007] Therefore, in order to solve the above problems, it is necessary to provide a pit annealing furnace for non-ferrous metal copper processing. Summary of the invention

[0008] In order to overcome the above-mentioned defects of the prior art, the present invention provides a pit annealing furnace for non-ferrous metal copper processing to solve the problems existing in the above-mentioned background technology.

[0009] The present invention provides the following technical solution: a pit-type annealing furnace for nonferrous metal copper processing, comprising a metal annealing furnace assembly, an exhaust assembly is fixedly installed on the upper end of the metal annealing furnace assembly, a cooling assembly is fixedly installed on the outer side of the metal annealing furnace assembly, and a purification assembly is fixedly connected to the outer end of the exhaust assembly;

[0010] The metal annealing furnace assembly includes an annealing furnace wall, the inner wall surface of the annealing furnace wall is provided with evenly distributed electric heating resistance wires, the bottom end of the annealing furnace wall is fixedly installed with a furnace base, the upper end of the annealing furnace wall is fixedly installed with a furnace top plate, the inner wall of the annealing furnace wall is provided with an inner wall cavity, the upper end of the furnace top plate is fixedly installed with a mounting column, and the furnace base is provided with evenly distributed base holes.

[0011] Furthermore, the exhaust assembly includes a mounting hole plate, which is fixedly sleeved on the inner wall of the bottom end of the mounting column, and the inner wall of the upper end of the mounting column is fixedly connected with evenly distributed mounting support plates, the inner ends of the mounting support plates are fixedly connected with a center sleeve, the upper and lower ends of the center sleeve are sleeved with bearings, the inner ring of the bearing is movably sleeved with a center shaft, the upper end of the center sleeve is fixedly installed with an exhaust motor, the drive shaft of the exhaust motor is fixedly connected to the upper end of the shaft body of the center shaft, and the bottom end of the shaft body of the center shaft is fixedly connected with an exhaust fan.

[0012] Furthermore, the cooling assembly includes exhaust pipes, the number of which is equal to the number of base holes opened in the furnace base, one end of the exhaust pipe is fixedly sleeved in the base hole opened in the furnace base, the other end of the exhaust pipe is fixedly installed inside the cavity in the wall, and the upper end of the exhaust pipe extends from the cavity in the wall and opens outward.

[0013] Furthermore, evenly distributed liquid injection pipes are fixedly installed inside the furnace base, the upper ends of the liquid injection pipes are fixedly connected to the bottom end of the cavity in the wall, the bottom ends of the liquid injection pipes are fixedly connected to a liquid storage ring box, the liquid storage ring box is sleeved on the outer side surface of the furnace base, a pressure pump is provided inside the liquid storage ring box, and the output ends of the pressure pump are respectively fixedly connected to the bottom ends of the liquid injection pipes.

[0014] Furthermore, the upper end of the liquid storage ring box is fixedly connected with evenly distributed liquid return pipes, the upper end openings of the liquid return pipes are fixedly connected to the upper end of the cavity in the wall, and the liquid storage ring box stores coolant inside.

[0015] Furthermore, the purification component includes an exhaust pipe, which is interconnected with the upper end opening of the mounting column, a mounting plate is fixedly installed at the pipe end of the exhaust pipe, a filter box is fixedly connected to the mounting plate, a filter plate is fixedly installed inside the filter box, an exhaust tail plate is fixedly installed at the outer end of the filter box, and evenly distributed exhaust grooves are opened on the exhaust tail plate.

[0016] Technical effects and advantages of the present invention:

[0017] 1. The present invention is provided with an exhaust assembly and a cooling assembly. When the metal workpiece needs to be cooled down inside the annealing furnace wall, the exhaust motor can be started to drive the central shaft to rotate. The rotation of the central shaft drives the exhaust fan to rotate. The exhaust fan rotates to discharge the airflow inside the annealing furnace wall upward. The external airflow can be sucked into the internal space of the annealing furnace wall through the base hole opened in the furnace base. In this way, the circulation speed of the airflow in the annealing furnace wall can be accelerated, thereby achieving its cooling effect. When the internal environment of the annealing furnace wall needs to be cooled down quickly, the pressure pump can pump the liquid stored in the liquid storage ring box. The coolant is injected into the cavity in the wall through the injection pipe. When the coolant fills the cavity in the wall, the inner wall of the annealing furnace wall can be quickly cooled. At this time, the exhaust fan rotates to discharge the airflow inside the annealing furnace wall upward, and the external airflow enters from the upper end of the exhaust pipe and is cooled when passing through the coolant filled in the cavity in the wall. The cooled airflow enters the interior of the annealing furnace wall to accelerate the cooling of its internal environment. The above structure can realize the cooling function of the combination of water cooling and air cooling, improve the cooling efficiency of the coolant, and the return pipe can return the coolant to the liquid storage ring box for reuse.

[0018] 2. The present invention is provided with a purification component. When the exhaust fan rotates to discharge the airflow inside the annealing furnace wall upward into the pipe of the exhaust duct, the impurity particles carried in the airflow also enter the exhaust duct and are discharged into the filter bin box. The impurity particles are intercepted and filtered by the filter plate, and the purified airflow is discharged to the external environment from the exhaust groove opened at the exhaust tail plate. The environmental protection function of the device is realized through the above structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall cross-sectional structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the metal annealing furnace assembly of the present invention.

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the exhaust component of the present invention.

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the cooling component of the present invention.

[0023] Figure 5 It is a schematic diagram of the purification component structure of the present invention.

[0024] Figure 6 It is a schematic diagram of the internal structure of the purification component of the present invention.

[0025] The accompanying drawings are marked as follows: 1. Metal annealing furnace assembly; 101. Annealing furnace wall; 102. Electric heating resistance wire; 103. Furnace base; 104. Furnace top plate; 105. Wall cavity; 106. Mounting column; 107. Base hole; 2. Exhaust assembly; 201. Mounting hole plate; 202. Mounting support plate; 203. Center sleeve; 204. Bearing; 205. Center shaft; 206. Exhaust motor; 207. Exhaust fan; 3. Cooling assembly; 301. Exhaust pipe; 302. Liquid injection pipe; 303. Liquid storage ring box; 304. Pressure pump; 305. Liquid return pipe; 4. Purification assembly; 401. Exhaust duct; 402. Mounting plate; 403. Filter box; 404. Filter plate; 405. Exhaust tail plate; 406. Exhaust trough. DETAILED DESCRIPTION

[0026] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are only examples. The pit annealing furnace for non-ferrous metal copper processing involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained without creative work by ordinary technicians in this field belong to the scope of protection of the present invention.

[0027] Reference Figure 1 The present invention provides a pit annealing furnace for nonferrous copper processing, comprising a metal annealing furnace assembly 1, an exhaust assembly 2 is fixedly installed on the upper end of the metal annealing furnace assembly 1, a cooling assembly 3 is fixedly installed on the outer side of the metal annealing furnace assembly 1, and a purification assembly 4 is fixedly connected to the outer end of the exhaust assembly 2;

[0028] In this embodiment, the metal annealing furnace component 1 is used to heat the metal workpiece, the exhaust component 2 is used to extract the air inside the metal annealing furnace component 1 to accelerate the internal air circulation, thereby cooling the internal environment, the cooling component 3 can cool the wall surface of the metal annealing furnace component 1, and the purification component 4 can filter and purify the airflow discharged from the exhaust component 2. The specific structure and working principle of the above components will be described in detail later.

[0029] Reference Figure 2The metal annealing furnace assembly 1 includes an annealing furnace wall 101, the inner wall surface of the annealing furnace wall 101 is provided with evenly distributed electric heating resistance wires 102, the bottom end of the annealing furnace wall 101 is fixedly installed with a furnace base 103, the upper end of the annealing furnace wall 101 is fixedly installed with a furnace top plate 104, the inner wall of the annealing furnace wall 101 is provided with an inner wall cavity 105, the upper end of the furnace top plate 104 is fixedly installed with a mounting column 106, and the furnace base 103 is provided with evenly distributed base holes 107;

[0030] In this embodiment, a metal workpiece is placed inside the annealing furnace wall 101, and the electric heating resistance wire 102 starts to heat the environment inside the annealing furnace wall 101. When the metal workpiece is heated to the annealing temperature, the electric heating resistance wire 102 stops heating the internal environment of the annealing furnace wall 101, and the external air flow can be sucked into the internal space of the annealing furnace wall 101 through the base hole 107 opened in the furnace base 103, and the cooling water can be injected into the wall cavity 105 opened on the inner wall of the annealing furnace wall 101 to cool the inner wall of the annealing furnace wall 101. The specific cooling method and working principle will be described in detail later.

[0031] Reference Figure 3 The exhaust assembly 2 includes a mounting hole plate 201, which is fixedly sleeved on the inner wall of the bottom end of the mounting column 106, and the inner wall of the upper end of the mounting column 106 is fixedly connected with a uniformly distributed mounting support plate 202, and the inner ends of the mounting support plates 202 are fixedly connected with a center sleeve 203, and the upper and lower ends of the center sleeve 203 are sleeved with bearings 204, and the inner ring of the bearing 204 is movably sleeved with a center shaft 205, and the upper end of the center sleeve 203 is fixedly installed with an exhaust motor 206, and the driving shaft of the exhaust motor 206 is fixedly connected to the upper end of the shaft body of the center shaft 205, and the lower end of the shaft body of the center shaft 205 is fixedly connected with an exhaust fan 207;

[0032] In this embodiment, when the metal workpiece needs to be cooled inside the annealing furnace wall 101, the exhaust motor 206 can be started to drive the central shaft 205 to rotate. The rotation of the central shaft 205 drives the exhaust fan 207 to rotate. The exhaust fan 207 rotates to discharge the airflow inside the annealing furnace wall 101 upward, and the external airflow can be sucked into the internal space of the annealing furnace wall 101 through the base hole 107 opened in the furnace base 103. In this way, the circulation speed of the airflow in the annealing furnace wall 101 can be accelerated, thereby achieving its cooling effect.

[0033] Reference Figure 4The cooling assembly 3 includes an exhaust pipe 301, the number of which is equal to the number of base holes 107 provided in the furnace base 103, one end of the exhaust pipe 301 is fixedly sleeved in the base hole 107 provided in the furnace base 103, and the other end of the exhaust pipe 301 is fixedly installed inside the wall cavity 105, the upper end of the exhaust pipe 301 extends out from the wall cavity 105 and opens outward, and the furnace base 103 is fixedly installed with uniformly distributed injection pipes 302, and the upper end of the injection pipe 302 is connected to the wall cavity 105. The bottom end of the inner cavity 105 is fixedly connected, the bottom end of the liquid injection pipe 302 is fixedly connected with a liquid storage ring box 303, the liquid storage ring box 303 is sleeved on the outer side of the furnace base 103, a pressure pump 304 is arranged inside the liquid storage ring box 303, the output ends of the pressure pump 304 are respectively fixedly connected with the bottom end of the liquid injection pipe 302, the upper end of the liquid storage ring box 303 is fixedly connected with a uniformly distributed liquid return pipe 305, the upper end of the liquid return pipe 305 is fixedly connected with the upper end of the cavity 105 in the wall, and the liquid storage ring box 303 stores cooling liquid inside;

[0034] In this embodiment, when the internal environment of the annealing furnace wall 101 needs to be cooled down quickly, the pressure pump 304 can inject the coolant stored in the liquid storage ring box 303 into the wall cavity 105 through the liquid injection pipe 302. When the coolant fills the wall cavity 105, the inner wall of the annealing furnace wall 101 can be cooled down quickly. At this time, the exhaust fan 207 rotates to discharge the airflow inside the annealing furnace wall 101 upward, and the external airflow enters from the upper end of the exhaust pipe 301. When passing through the coolant filled in the wall cavity 105, it is cooled. The cooled airflow enters the interior of the annealing furnace wall 101 to accelerate the cooling of its internal environment. The above structure can realize the cooling function of combining water cooling and air cooling, improve the cooling efficiency of the coolant, and the return pipe 305 can return the coolant to the liquid storage ring box 303 for reuse.

[0035] Reference Figure 5 and Figure 6 The purification component 4 includes an exhaust pipe 401, which is connected to the upper opening of the mounting column 106, and a mounting plate 402 is fixedly installed at the end of the pipe of the exhaust pipe 401, and a filter box 403 is fixedly connected to the mounting plate 402, and a filter plate 404 is fixedly installed inside the filter box 403, and an exhaust tail plate 405 is fixedly installed at the outer end of the filter box 403, and the exhaust tail plate 405 is provided with evenly distributed exhaust slots 406;

[0036] In this embodiment, when the exhaust fan 207 rotates to discharge the airflow inside the annealing furnace wall 101 upward into the exhaust duct 401, the impurity particles carried in the airflow also enter the exhaust duct 401 and are discharged into the filter box 403. The impurity particles are intercepted and filtered by the filter plate 404, and the purified airflow is discharged to the external environment from the exhaust groove 406 opened at the exhaust tail plate 405. The environmental protection function of the device is realized through the above structure.

[0037] The working principle of the present invention is as follows: a metal workpiece is placed inside the annealing furnace wall 101, and the electric heating resistance wire 102 is started to heat the environment inside the annealing furnace wall 101. When the metal workpiece is heated to the annealing temperature, the electric heating resistance wire 102 stops heating the internal environment of the annealing furnace wall 101, and the external air flow can be sucked into the internal space of the annealing furnace wall 101 through the base hole 107 opened in the furnace base 103, and the cooling water can be injected into the inner wall cavity 105 opened on the inner wall of the annealing furnace wall 101 to cool the inner wall of the annealing furnace wall 101. When the metal workpiece needs to be cooled down inside the annealing furnace wall 101, the exhaust motor 206 can be started to drive the central shaft 205 to rotate. The rotation of the central shaft 205 drives the exhaust fan 207 to rotate. The exhaust fan 207 rotates to discharge the airflow inside the annealing furnace wall 101 upward. The external airflow can be sucked into the internal space of the annealing furnace wall 101 through the base hole 107 opened in the furnace base 103. In this way, the circulation speed of the airflow in the annealing furnace wall 101 can be accelerated, thereby achieving its cooling effect. When the internal environment of the annealing furnace wall 101 needs to be cooled down quickly, The pressure pump 304 can inject the coolant stored in the liquid storage ring box 303 into the wall cavity 105 through the liquid injection pipe 302. When the coolant is filled in the wall cavity 105, the inner wall of the annealing furnace wall 101 can be quickly cooled. At this time, the exhaust fan 207 rotates to discharge the airflow inside the annealing furnace wall 101 upward, and the external airflow enters from the upper end of the exhaust pipe 301. When passing through the coolant filled in the wall cavity 105, it is cooled. The cooled airflow enters the interior of the annealing furnace wall 101 to accelerate the cooling of its internal environment. The above structure can realize water cooling and The combined cooling function of air cooling improves the cooling efficiency of the coolant. The return pipe 305 can return the coolant to the liquid storage ring box 303 for reuse. When the exhaust fan 207 rotates to discharge the airflow inside the annealing furnace wall 101 upward into the pipe of the exhaust duct 401, the impurity particles carried in the airflow also enter the exhaust duct 401 and are discharged into the filter bin box 403. The impurity particles are intercepted and filtered by the filter plate 404, and the purified airflow is discharged to the external environment from the exhaust duct 406 opened at the exhaust tail plate 405. The environmental protection function of the device is realized through the above structure.

[0038] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0039] Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

[0040] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pit annealing furnace for non-ferrous metal copper processing, characterized in that: It comprises a metal annealing furnace assembly (1), an exhaust assembly (2) is fixedly mounted on the upper end of the metal annealing furnace assembly (1), a cooling assembly (3) is fixedly mounted on the outer side of the metal annealing furnace assembly (1), and a purification assembly (4) is fixedly connected to the outer end of the exhaust assembly (2); The metal annealing furnace assembly (1) comprises an annealing furnace wall (101), the inner wall surface of the annealing furnace wall (101) is provided with evenly distributed electric heating resistance wires (102), the bottom end of the annealing furnace wall (101) is fixedly mounted with a furnace base (103), the upper end of the annealing furnace wall (101) is fixedly mounted with a furnace top plate (104), the inner wall of the annealing furnace wall (101) is provided with an inner wall cavity (105), the upper end of the furnace top plate (104) is fixedly mounted with a mounting column (106), and the furnace base (103) is provided with evenly distributed base holes (107).

2. A pit annealing furnace for nonferrous copper processing according to claim 1, characterized in that: The exhaust assembly (2) comprises a mounting hole plate (201), wherein the mounting hole plate (201) is fixedly sleeved on the inner wall of the bottom end of the mounting column (106), and the inner wall of the upper end of the mounting column (106) is fixedly connected with a uniformly distributed mounting support plate (202), and the inner ends of the mounting support plates (202) are fixedly connected with a center sleeve (203), and the upper and lower ends of the center sleeve (203) are sleeved with bearings (204), and the inner ring of the bearing (204) is movably sleeved with a center shaft (205), and the upper end of the center sleeve (203) is fixedly mounted with an exhaust motor (206), and the driving shaft of the exhaust motor (206) is fixedly connected to the upper end of the shaft body of the center shaft (205), and the lower end of the shaft body of the center shaft (205) is fixedly connected with an exhaust fan (207).

3. The pit annealing furnace for nonferrous copper processing according to claim 1, characterized in that: The cooling assembly (3) comprises an exhaust pipe (301), the number of the exhaust pipes (301) being equal to the number of base holes (107) provided on the furnace base (103), one end of the exhaust pipe (301) being fixedly sleeved in the base hole (107) provided on the furnace base (103), the other end of the exhaust pipe (301) being fixedly mounted inside the cavity (105) in the wall, and the upper end of the exhaust pipe (301) extending out from the cavity (105) in the wall and opening outward.

4. The pit annealing furnace for nonferrous copper processing according to claim 1, characterized in that: The furnace base (103) is fixedly provided with uniformly distributed liquid injection pipes (302), the upper end openings of the liquid injection pipes (302) are fixedly connected to the bottom end of the cavity (105) in the wall, the bottom end openings of the liquid injection pipes (302) are fixedly connected to a liquid storage ring box (303), the liquid storage ring box (303) is sleeved on the outer side surface of the furnace base (103), a pressure pump (304) is provided inside the liquid storage ring box (303), and the output ends of the pressure pump (304) are respectively fixedly connected to the bottom end openings of the liquid injection pipes (302).

5. A pit annealing furnace for nonferrous copper processing according to claim 4, characterized in that: The upper end of the liquid storage ring box (303) is fixedly connected to evenly distributed liquid return pipes (305), the upper end openings of the liquid return pipes (305) are fixedly connected to the upper end of the cavity (105) in the wall, and the liquid storage ring box (303) stores cooling liquid inside.

6. The pit annealing furnace for nonferrous copper processing according to claim 1, characterized in that: The purification component (4) comprises an exhaust pipe (401), the exhaust pipe (401) is connected to the upper opening of the mounting column (106), a mounting plate (402) is fixedly mounted on the pipe end of the exhaust pipe (401), a filter box (403) is fixedly connected to the mounting plate (402), a filter plate (404) is fixedly mounted inside the filter box (403), an exhaust tail plate (405) is fixedly mounted on the outer end of the filter box (403), and the exhaust tail plate (405) is provided with evenly distributed exhaust grooves (406).

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