An isothermal quenching salt bath

Abstract

This invention provides an isothermal quenching salt bath, relating to the field of metal heat treatment technology. It includes a main body with a heat-insulating cover slidably mounted on its top surface. A rubber spacer occupies space on the left side of the main body. When the heat-insulating cover slides open to the right, a thin-film pressure sensor embedded in the rubber spacer is simultaneously activated. This ensures that if a worker enters the space defined by the rubber spacer, the pressure sensor detects and triggers a high-decibel alarm, alerting the worker to a dangerous area where they are likely to be exposed to salt spray and need to move away immediately. This solves the problem of existing salt baths lacking an effective warning mechanism, leading to worker exposure to diffused salt spray and posing a safety hazard.

Description

Technical Field

[0001] This invention relates to the field of metal heat treatment technology, and in particular to an isothermal quenching salt bath. Background Technology

[0002] In the field of metal material processing and production, isothermal quenching is a key process step in the production of lead-free bath wire products, high-strength cord steel products, gas shielding, pipelines, and railway weathering welding wire steel. The isothermal quenching salt bath tank is an important piece of equipment for realizing this process, and its performance and design directly affect the quality of the products and production efficiency.

[0003] Currently, when isothermal quenching workpieces, salt baths typically seal the opening of the bath with an insulation cover after the workpiece is placed in the salt solution to prevent heat loss and contamination from external impurities. Although the insulation cover usually has vents for salt mist discharge, a large amount of salt mist is generated during the heating phase. The vents only prevent excessive accumulation of salt mist. When the insulation cover is subsequently opened, the large amount of salt mist remaining in the bath will rapidly diffuse outwards, causing pollution to the surrounding environment. Moreover, the area around the salt bath becomes a dangerous zone where workers are easily exposed to the salt mist. However, existing salt baths lack effective warning mechanisms to promptly alert workers to stay away from the danger zone, leading to direct contact with the diffused salt mist and posing a safety hazard. Summary of the Invention

[0004] This invention relates to an isothermal quenching salt bath, which solves the problem that when isothermal quenching workpieces in an isothermal quenching salt bath, the open end of the workpiece is sealed with a heat-insulating cover after placement. Although the exhaust vent of the heat-insulating cover can release salt mist, a large amount of salt mist remains when the temperature rises. When the heat-insulating cover is opened, the remaining salt mist spreads and pollutes the environment. Furthermore, because the current salt bath lacks an effective warning mechanism, workers are easily exposed to the diffused salt mist, posing a safety hazard.

[0005] This invention provides an isothermal quenching salt bath, specifically comprising: a main body, wherein a heat-insulating cover plate is slidably mounted on the top surface of the main body, and an inner hollow shell is fixedly mounted on the upper left side of the top surface of the heat-insulating cover plate by reinforcing ribs; a converging extraction shell communicating with its hollow cavity is fixedly mounted on the bottom surface of the inner hollow shell, the converging extraction shell having a frustum structure, the bottom surface of the converging extraction shell being at the same horizontal plane as the bottom surface of the heat-insulating cover plate, and an extraction opening communicating with its inner cavity being provided on the bottom surface of the converging extraction shell; the top surface of the inner hollow shell... A converging conveying shell, which is connected to the cavity of the converging conveying shell, is fixedly installed. The converging conveying shell has a rectangular bottom and a circular top. An extension pipe connected to the cavity of the converging conveying shell is fixedly installed on the top surface of the converging conveying shell. A set of fans is fixedly installed on the top of the extension pipe. The top of the fans is connected to the salt spray emission pipe for conveying salt spray through a corrugated hose b. An exhaust pipe penetrating the bottom surface of the insulation cover is fixedly installed on the top surface of the cover. The top of the exhaust pipe is also connected to the salt spray emission pipe for conveying salt spray through a corrugated hose a.

[0006] Furthermore, an extension block is provided on the right end face of the main body. The top surface of the extension block is coplanar with the top surface of the main body. A mounting groove is formed on the top surface of the extension block. A set of tactile switches is fixedly installed on the bottom surface of the mounting groove. When the tactile switches are in the unpressed state, their button end is higher than the top surface of the extension block. A guide notch is formed at the intersection of the right end face and the bottom end face of the insulation cover. The height of the guide notch is greater than the height between the top surface of the extension block and the top surface of the button end of the tactile switch. A mating groove is formed on the left side of the bottom end face of the insulation cover. The mating groove corresponds to the position of the tactile switch. The depth of the mating groove is consistent with the height of the guide notch. The right edge of the mating groove is chamfered, and the side length corresponding to the chamfered angle is consistent with the depth of the mating groove.

[0007] Furthermore, a slide rail is fixedly installed on both the front and rear faces of the main body; a side auxiliary plate is fixedly installed on both the front and rear sides of the bottom end of the insulation cover plate, and a row of connecting shafts is fixedly installed on the opposite faces of the two side auxiliary plates. Each connecting shaft is rotatably mounted with a pulley through a bearing, and the pulley is slidably installed in cooperation with the slide rail; two temporary support plates are fixedly installed on the right end face of the main body, and the top faces of the two temporary support plates are coplanar with the top face of the main body.

[0008] Furthermore, a row of gear teeth is fixedly installed on the bottom surface of the side auxiliary plate located on the front side in a uniform distribution; an L-shaped plate is fixedly installed on the right side of the front end face of the main body, and a set of motors is fixedly installed on the front end face of the L-shaped plate; a drive gear is provided between the L-shaped plate and the front end face of the main body, and the shaft end of the motor passes through the L-shaped plate and is fixedly connected to the drive gear, and the drive gear meshes with the gear teeth.

[0009] Furthermore, a rubber spacer with an integral concave plate structure is installed around the bottom left side of the main body, and several thin-film pressure sensors are embedded in the rubber spacer in a uniformly distributed manner inside; a working groove is opened on the top surface of the main body; and an alarm component for a buzzer is installed on the front surface of the main body.

[0010] Furthermore, a control box is provided on one side of the main body. The control box is electrically connected to the motor, warning component, tactile switch, membrane pressure sensor and fan. When the tactile switch is in the pressed start state, the tactile switch feeds a feedback signal to the control box, and the control box controls the membrane pressure sensor and fan to start. When the membrane pressure sensor senses pressure, the membrane pressure sensor feeds a feedback signal to the control box, and the control box controls the warning component to start.

[0011] This invention provides an isothermal quenching salt bath, which has the following beneficial effects:

[0012] This invention features a sliding installation design where the insulation cover and main body are mounted side-to-side. When the workpiece is placed in the brine, the insulation cover seals the opening of the working tank, achieving heat preservation and preventing external impurities from falling into the tank. Simultaneously, the exhaust pipe allows for the removal of salt mist generated during the heating phase, preventing excessive accumulation. Furthermore, the invention utilizes a pressing mechanism between the insulation cover and a tactile switch, allowing the fan to start simultaneously as the insulation cover slides open to the right. The extraction opening for salt mist also aligns with the gradually revealed opening of the working tank. Under the powerful suction of the fan, the salt mist diffusing from the working tank opening is rapidly extracted and transported to the salt mist discharge pipe, achieving synchronous and efficient salt mist extraction. This effectively prevents sudden salt mist diffusion and environmental pollution.

[0013] This invention occupies space on the left side of the main body using a rubber spacer pad. This left side is the opening area of ​​the working tank that is first exposed. Based on the pressing action of the insulation cover and the tactile switch, when the insulation cover slides open to the right, the thin-film pressure sensor embedded in the rubber spacer pad is activated simultaneously. This allows a high-decibel buzzer warning to be triggered when a worker enters the space defined by the rubber spacer pad, as the thin-film pressure sensor detects and provides feedback, reminding the worker that they are in a dangerous area where they are likely to come into contact with salt spray and need to move away immediately. Through this mechanism, this invention effectively prevents a small amount of unextracted diffused salt spray from coming into contact with the human body, providing strong protection for the safety of workers. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0015] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0016] In the attached diagram:

[0017] Figure 1 A schematic diagram of the front-end isometric structure of this application is shown;

[0018] Figure 2 A schematic diagram of the rear isometric structure of this application is shown;

[0019] Figure 3 A side view of the structure of this application is shown;

[0020] Figure 4 A schematic diagram of the main view structure of this application is shown;

[0021] Figure 5 This application shows Figure 4 A magnified view of the structure at point A in the middle;

[0022] Figure 6 This shows a schematic diagram of the top isometric structure in the split state of this application;

[0023] Figure 7 This paper shows a schematic diagram of the bottom isometric structure in the split state of this application;

[0024] Figure 8 A top view of the structure of this application is shown;

[0025] Figure 9 A system block diagram of this application is shown;

[0026] List of reference numerals

[0027] 1. Main body; 101. Control box; 102. L-shaped plate; 103. Motor; 104. Warning assembly; 105. Rubber spacer pad; 106. Temporary support plate; 107. Extension block; 108. Tactile switch; 109. Drive gear; 1010. Working groove; 1011. Slide rail; 1012. Thin-film pressure sensor; 1013. Mounting groove;

[0028] 2. Insulated cover plate; 201. Exhaust pipe; 202. Corrugated hose a; 203. Inner hollow shell; 204. Converging conveying shell; 205. Extension pipe; 206. Fan; 207. Corrugated hose b; 208. Side auxiliary plate; 209. Gear teeth; 2010. Pulley; 2011. Connecting shaft; 2012. Converging extraction shell; 2013. Guide notch; 2014. Mating groove; 2015. Extraction opening. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example: Please refer to Figures 1 to 9 :

[0031] This invention proposes an isothermal quenching salt bath, comprising: a main body 1, with an insulating cover 2 slidably mounted on the top surface of the main body 1; an inner hollow shell 203 fixedly mounted on the upper left side of the top surface of the insulating cover 2 via reinforcing ribs; a converging extraction shell 2012, communicating with its hollow cavity, fixedly mounted on the bottom surface of the inner hollow shell 203; the converging extraction shell 2012 has a frustum structure, and its bottom surface is at the same level as the bottom surface of the insulating cover 2; an extraction opening 2015 communicating with its inner cavity is provided on the bottom surface of the converging extraction shell 2012; and a converging conveying shell 204, communicating with its hollow cavity, fixedly mounted on the top surface of the inner hollow shell 203. The converging conveying shell 204 has a rectangular bottom and a rectangular top. The main body has a circular structure. An extension pipe 205 connected to its inner cavity is fixedly installed on the top surface of the converging conveying shell 204. A set of fans 206 is fixedly installed on the top of the extension pipe 205. The top of the fans 206 is connected to the salt spray emission pipe for conveying salt spray through a corrugated hose b207. An exhaust pipe 201 penetrating its bottom surface is fixedly installed on the top surface of the insulation cover plate 2. The top of the exhaust pipe 201 is also connected to the salt spray emission pipe for conveying salt spray through a corrugated hose a202. The corrugated hose a202 and corrugated hose b207 are designed so that when the insulation cover plate 2 moves left and right along the main body 1, the corrugated hose a202 and corrugated hose b207 can extend and move accordingly, achieving length compensation and preventing pulling and obstruction.

[0032] In this embodiment of the invention, an extension block 107 is provided on the right end face of the main body 1. The top surface of the extension block 107 is coplanar with the top surface of the main body 1. A mounting groove 1013 is formed on the top surface of the extension block 107. A set of tactile switches 108 are fixedly installed on the bottom surface of the inner end of the mounting groove 1013. When the tactile switches 108 are in the unpressed start state, their button end is higher than the top surface of the extension block 107. A guide notch 2013 is formed at the intersection of the right end face and the bottom end face of the insulation cover 2. The height of the guide notch 2013 is greater than the distance from the top surface of the extension block 107 to the tactile switches 108. The height between the top surfaces of the button end; a mating groove 2014 is provided on the left side of the bottom surface of the insulation cover plate 2. The mating groove 2014 corresponds to the position of the tactile switch 108. The depth of the mating groove 2014 is consistent with the height of the guide notch 2013. The right edge of the mating groove 2014 is chamfered, and the side length corresponding to the chamfered angle is consistent with the depth of the mating groove 2014. Therefore, when the button end of the tactile switch 108 enters the mating groove 2014, the button end of the tactile switch 108 automatically resets. When the insulation cover plate 2 moves to the left along the main body 1, the chamfered edge... The right edge, like the guide notch 2013, will provide pressure on the button of the tactile switch 108, preventing damage to the button of the tactile switch 108; a slide rail 1011 is fixedly installed on both the front and rear faces of the main body 1; a side auxiliary plate 208 is fixedly installed on both the front and rear sides of the bottom end of the insulation cover 2, and a row of connecting shafts 2011 is fixedly installed on the opposite faces of the two side auxiliary plates 208. Each connecting shaft 2011 is rotatably mounted with a pulley 2010 via a bearing, and the pulley 2010 is slidably fitted with the slide rail 1011; the right end face of the main body 1 Two temporary support plates 106 are fixedly installed, with their top surfaces coplanar with the top surface of the main body 1. A row of gear teeth 209 is fixedly installed on the bottom surface of a side auxiliary plate 208 located on the front side. An L-shaped plate 102 is fixedly installed on the right side of the front surface of the main body 1, and a set of motors 103 is fixedly installed on the front surface of the L-shaped plate 102. A drive gear 109 is provided between the L-shaped plate 102 and the front surface of the main body 1. The shaft end of the motor 103 passes through the L-shaped plate 102 and is fixedly connected to the drive gear 109. The drive gear 109 meshes with the gear teeth 209.

[0033] In this embodiment of the invention, a rubber spacer pad 105 with an integral concave plate structure is installed around the bottom left side of the main body 1. Several thin-film pressure sensors 1012 are embedded in the rubber spacer pad 105 in a uniformly distributed manner. A working groove 1010 is opened on the top surface of the main body 1. An alarm component 104, which is a buzzer, is installed on the front surface of the main body 1. A control box 101 is provided on one side of the main body 1. The control box 101 is electrically connected to the motor 103, the alarm component 104, the tactile switch 108, the thin-film pressure sensors 1012, and the fan 206. When the tactile switch 108 is in the pressed start state, the tactile switch 108 sends a feedback signal to the control box 101, and the control box 101 controls the thin-film pressure sensors 1012 and the fan 206 to start. When the thin-film pressure sensor 1012 senses pressure, the thin-film pressure sensor 1012 sends a feedback signal to the control box 101, and the control box 101 controls the alarm component 104 to start.

[0034] The working principle of this embodiment:

[0035] After the pre-treated workpieces, such as those that have been cleaned, degreased, and derusted, are placed into the salt solution in the working tank 1010, the operator can start the motor 103 by operating the control box 101. The motor 103 rotates counterclockwise, and through the meshing of the drive gear 109 and the gear teeth 209, the heat insulation cover 2 moves to the left along the main body 1 through the sliding cooperation of the pulley 2010 and the slide rail 1011 until the heat insulation cover 2 seals the opening of the working tank 1010, so as to achieve heat insulation and prevent external impurities from falling into the working tank 1010.

[0036] During the heating stage, as the temperature of the salt solution gradually increases, some components in the salt solution will evaporate due to heat, thus generating salt mist. The generated salt mist can be discharged into the salt mist discharge pipe through the exhaust pipe 201 to avoid excessive accumulation of salt mist in the working tank 1010. When the isothermal quenching stage ends and the workpiece needs to be removed, the operator can also control the motor 103 to start through the control box 101. Its shaft end rotates clockwise, thereby driving the heat preservation cover plate 2 to move to the right along the main body 1 through the sliding cooperation of the pulley 2010 and the slide rail 1011, so as to gradually expose the opening end of the working tank 1010 that was closed by it, so that the operator can remove the workpiece later.

[0037] During the process of exposing the opening end of the working groove 1010, when the insulation cover 2 moves to the right along the main body 1, the guide notch 2013 end of the insulation cover 2 will first contact the button end of the tactile switch 108, and under its movement and pressure, the tactile switch 108 will be in the pressed start state. When the tactile switch 108 is in the pressed start state, the tactile switch 108 feeds a signal to the control box 101, and the control box 101 controls the membrane pressure sensor 1012 and the fan 206 to start.

[0038] When the blower 206 starts, the extraction opening 2015 of the converging extraction housing 2012 corresponds to the opening end of the gradually exposed working tank 1010. Under the strong suction of the blower 206, the salt mist diffused from the opening end of the working tank 1010 is quickly sucked into the extraction opening 2015, and then passes through the converging extraction housing 2012, the inner hollow housing 203, the converging conveying housing 204, and the extension pipe 205 in sequence. Under the continuous push of the blower 206, it is finally transported to the salt mist discharge pipe through the corrugated hose b207, realizing synchronous and efficient salt mist extraction, effectively avoiding the sudden diffusion of salt mist and preventing it from polluting the surrounding environment.

[0039] Furthermore, when the membrane pressure sensor 1012 is activated, once a worker enters the space area defined by the rubber spacer pad 105, the membrane pressure sensor 1012 will sense the worker's pressure and send a feedback signal to the control box 101. The control box 101 will then activate the warning component 104 to issue a high-decibel buzzer warning, reminding the worker that they are in a dangerous area where they are likely to come into contact with salt spray and need to move away from the rubber spacer pad 105. This mechanism effectively prevents a small amount of unextracted diffused salt spray from coming into contact with the human body, providing strong protection for the safety of the workers.

[0040] As the insulation cover 2 gradually unfolds, the temporary support plate 106 provides auxiliary support for the insulation cover 2. When the mating groove 2014 moves to the position of the tactile switch 108, the tactile switch 108 automatically resets and closes because there is no longer any pressure from the bottom of the insulation cover 2 against the button end of the tactile switch 108. The membrane pressure sensor 1012 and the fan 206 also shut down simultaneously. At this time, the operator can walk on the rubber spacer pad 105 to get close to the main body 1 to operate without triggering a buzzer alarm. Furthermore, after the insulation cover 2 unfolds, the opening end of the working groove 1010 has expanded to provide sufficient space for the operator to remove the workpiece from the working groove 1010.

[0041] The following points should be noted in this article:

[0042] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0043] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0044] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure.

Claims

1. An isothermal quenching salt bath, characterized in that, include: The main body (1) has a heat-insulating cover plate (2) slidably installed on its top surface. A hollow inner shell (203) is fixedly installed on the upper left side of the top surface of the heat-insulating cover plate (2) via reinforcing ribs. A converging extraction shell (2012) connected to its hollow cavity is fixedly installed on the bottom surface of the hollow inner shell (203). The converging extraction shell (2012) has a truncated pyramidal structure. The bottom surface of the converging extraction shell (2012) is at the same horizontal plane as the bottom surface of the heat-insulating cover plate (2). A extraction opening (2015) connected to its inner cavity is provided on the bottom surface of the converging extraction shell (2012). A converging conveying shell (204) communicating with the cavity is fixedly installed on the top surface of the empty shell (203). The converging conveying shell (204) has a rectangular bottom and a circular top. An extension pipe (205) communicating with its inner cavity is fixedly installed on the top surface of the converging conveying shell (204). A set of fans (206) is fixedly installed on the top of the extension pipe (205). The top of the fans (206) is connected to the salt spray emission pipe for conveying salt spray through a corrugated hose b (207). An exhaust pipe (201) penetrating its bottom surface is fixedly installed on the top surface of the heat insulation cover plate (2). The top end of the trachea (201) is also connected to the salt spray emission pipe for conveying salt spray through a corrugated hose a (202); an extension block (107) is provided on the right end face of the main body (1), the top surface of the extension block (107) is coplanar with the top surface of the main body (1), and an installation groove (1013) is opened on the top surface of the extension block (107). A set of tactile switches (108) is fixedly installed on the bottom surface of the inner end of the installation groove (1013). When the tactile switch (108) is in the unpressed start state, its button end is higher than the top surface of the extension block (107); the right end face and bottom end of the heat insulation cover (2) A guide notch (2013) is provided at the intersection of the surfaces. The height of the guide notch (2013) is greater than the height between the top surface of the extension block (107) and the top surface of the button end of the tactile switch (108). A mating groove (2014) is provided on the left side of the bottom end surface of the heat insulation cover (2). The mating groove (2014) corresponds to the position of the tactile switch (108). The depth of the mating groove (2014) is consistent with the height of the guide notch (2013). The right edge of the mating groove (2014) is chamfered. The side length corresponding to the chamfered angle is consistent with the depth of the mating groove (2014).

2. The isothermal quenching salt bath according to claim 1, characterized in that, The front and rear faces of the main body (1) are both fixedly equipped with a slide rail (1011); the bottom face of the insulation cover (2) is fixedly equipped with a side auxiliary plate (208) on the front and rear sides, and a row of connecting shafts (2011) is fixedly installed on the opposite faces of the two side auxiliary plates (208). Each connecting shaft (2011) is equipped with a pulley (2010) through a bearing. The pulley (2010) is slidably installed in cooperation with the slide rail (1011); the right face of the main body (1) is fixedly equipped with two temporary support plates (106), and the top faces of the two temporary support plates (106) are coplanar with the top face of the main body (1).

3. The isothermal quenching salt bath according to claim 2, characterized in that, A row of gear teeth (209) is fixedly installed on the bottom surface of the side auxiliary plate (208) located on the front side; an L-shaped plate (102) is fixedly installed on the right side of the front end face of the main body (1), and a set of motors (103) is fixedly installed on the front end face of the L-shaped plate (102); an active gear (109) is provided between the L-shaped plate (102) and the front end face of the main body (1), and the shaft end of the motor (103) passes through the L-shaped plate (102) and is fixedly connected to the active gear (109), and the active gear (109) meshes with the gear teeth (209).

4. The isothermal quenching salt bath according to claim 3, characterized in that, A rubber spacer pad (105) with an integral concave plate structure is installed around the bottom left side of the main body (1). Several thin film pressure sensors (1012) are embedded in the rubber spacer pad (105) in a uniform distribution. A working groove (1010) is opened on the top surface of the main body (1). A warning component (104) for a buzzer is installed on the front surface of the main body (1).

5. The isothermal quenching salt bath according to claim 4, characterized in that, A control box (101) is provided on one side of the main body (1). The control box (101) is electrically connected to the motor (103), the warning component (104), the tactile switch (108), the membrane pressure sensor (1012), and the fan (206). When the tactile switch (108) is in the pressed start state, the tactile switch (108) sends a feedback signal to the control box (101), and the control box (101) controls the membrane pressure sensor (1012) and the fan (206) to start. When the membrane pressure sensor (1012) senses pressure, the membrane pressure sensor (1012) sends a feedback signal to the control box (101), and the control box (101) controls the warning component (104) to start.

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