A trough-type zinc sheet melting and casting furnace for zinc ingot production lines and its usage method

Abstract

This invention discloses a trough-type zinc sheet melting and casting furnace for zinc ingot production lines and its usage method, belonging to the field of melting and casting furnace technology. It includes a furnace body and further includes: a stirring assembly for stirring materials located within the furnace body; and a waste gas treatment mechanism for filtering waste gas generated during the heating of materials within the furnace body. The waste gas treatment mechanism includes a first cylinder and a three-way connector, and also includes a filter cleaning assembly. The filter cleaning assembly includes an annular mounting plate, a filter plate assembly, and a lead screw. The annular mounting plate is fixedly installed within the first cylinder, and the filter plate assembly is mounted on the annular mounting plate via a floating assembly. One end of the lead screw is rotatably connected to the filter plate assembly, and an annular pusher is threaded onto the lead screw and slides in a limiting groove formed on the first cylinder. This invention can treat waste gas generated by the melting and casting furnace and can adjust the filtration rate of the filter cleaning assembly according to changes in the internal pressure of the melting and casting furnace.

Description

Technical Field

[0001] This invention belongs to the field of melting and casting furnace technology, and particularly relates to a trough-type zinc sheet melting and casting furnace for zinc ingot production lines and its usage method. Background Technology

[0002] With the increasingly widespread application of zinc ingots in various industries, especially the extensive use of galvanized products, the product has achieved significant development in fields such as home appliances, automobiles, and building materials due to its superior corrosion resistance. Zinc sheet melting and casting furnaces are key equipment in the zinc smelting industry.

[0003] Zinc sheet casting furnaces generate waste gas during the casting of zinc sheets. This waste gas contains zinc vapor, zinc oxide fumes, and other toxic substances. The waste gas needs to be filtered before it can be discharged. However, the zinc vapor in the waste gas will solidify when it cools, causing the filter components installed on the furnace body to become clogged. If it is not cleared in time, it will cause drastic fluctuations in the gas pressure inside the furnace, resulting in substandard quality of the cast zinc sheets and posing a risk of furnace explosion. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a trough-type zinc sheet melting and casting furnace for zinc ingot production lines, thus solving the aforementioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a trough-type zinc sheet melting and casting furnace for a zinc ingot production line, comprising a furnace body and a feeding assembly installed on the furnace body for feeding, and further comprising:

[0006] A stirring assembly, installed on the furnace body, is used to stir the materials located inside the furnace body;

[0007] The exhaust gas treatment unit, installed on the furnace body, is used to filter the exhaust gas generated during the heating of materials inside the furnace.

[0008] The exhaust gas treatment mechanism is provided in two sets. The exhaust gas treatment mechanism includes a first cylinder and a three-way connector. The two first cylinders are fixedly connected to the furnace body and are in communication with the furnace body. A first valve is installed in the first cylinder. The two air inlet ends of the three-way connector are installed correspondingly at the air outlet ends of the first cylinder. It also includes a filter cleaning assembly. The filter cleaning assembly includes an annular mounting plate, a filter plate assembly, a floating assembly, and a lead screw. The annular mounting plate is fixedly installed in the first cylinder. The filter plate assembly is installed on the annular mounting plate through the floating assembly. One end of the lead screw is rotatably connected to the filter plate assembly. An annular pusher is threadedly connected to the lead screw and slides in a limiting groove opened on the first cylinder. A drive assembly for driving the lead screw to rotate and move linearly is also installed on the first cylinder.

[0009] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0010] Further technical solution: The floating component includes a guide post, a baffle and a second cylinder. The guide post is slidably engaged with the second cylinder embedded in the annular mounting plate. A baffle is fixedly connected to one end of the guide post extending into the second cylinder. The baffle is slidably engaged with the second cylinder. A second elastic element is provided inside the second cylinder. The second elastic element is fixedly connected to the baffle and the second cylinder.

[0011] Further technical solution: The drive assembly includes a first support frame, a first mounting cylinder, a second mounting cylinder, a second motor, a first crown gear, a second crown gear, a first elastic element, a rotating ring, and a ratchet. The first mounting cylinder is mounted on the first support frame, which is fixedly connected to the first cylinder body. The second mounting cylinder is threadedly connected to the first support frame. The second motor is detachably mounted inside the second mounting cylinder. The output shaft of the second motor is fixedly connected to the first crown gear, which is rotatably connected inside the second mounting cylinder. The second crown gear is fixedly connected to a lead screw and meshes with the first crown gear. The ratchet is mounted on the first mounting cylinder. The lead screw has a limiting groove that slides in cooperation with a limiting slider fixedly connected to the inner ring of the ratchet. The first elastic element is sleeved on the lead screw, and rotating rings are fixedly connected to both ends of the first elastic element. The two rotating rings are rotatably connected to the second crown gear and the first mounting cylinder, respectively.

[0012] A further technical solution: The first cylinder is provided with a drain hole for discharging waste material, and a second valve is installed in the drain hole.

[0013] Further technical solution: The stirring assembly includes a first motor, a rotating shaft, and a stirring blade assembly. The first motor is detachably mounted on the furnace body. The rotating shaft is rotatably connected to the furnace body. The stirring blade assembly is mounted on the lower end of the rotating shaft. The stirring blade assembly includes a mounting rod and a disturbance rod. The mounting rod is arc-shaped and fits against the bottom of the furnace body. Several disturbance rods are provided and evenly mounted on the mounting rod. The mounting rod is fixedly connected to the rotating shaft.

[0014] Further technical solution: The feeding assembly includes a feeding cylinder and a valve. The feeding cylinder is fixedly installed on the furnace body, and the valve is installed inside the feeding cylinder.

[0015] Further technical solutions include a detection component for detecting the internal pressure information of the furnace body and the wind speed difference information on both sides of the filter plate assembly.

[0016] Further technical solution: The detection component includes:

[0017] A pressure sensor is installed inside the furnace to detect the pressure information inside the furnace.

[0018] Two wind speed sensors are installed on both sides of the filter plate assembly to detect the wind speed difference between the two sides of the filter plate assembly.

[0019] A further technical solution: The furnace body sidewall is embedded with a heating element for heating the interior of the furnace body.

[0020] The above-mentioned method of using the trough-type zinc sheet melting and casting furnace on a zinc ingot production line includes the following steps:

[0021] S1. Use a pressure sensor to detect the pressure information inside the furnace, and use two wind speed sensors to obtain the wind speed difference information on both sides of the filter plate assembly.

[0022] S2. When either the obtained air pressure information or the wind speed difference information is not within the preset threshold, the second motor is turned on to rotate forward. At this time, the first crown gear drives the second crown gear to drive the screw to perform linear reciprocating motion in the horizontal direction. At this time, the screw pushes the filter plate assembly to hit the annular mounting plate to achieve vibration and impurity removal of the filter plate assembly.

[0023] S3. After the vibration preset time, the second motor is reversed. The first crown gear drives the second crown gear to rotate the screw in the horizontal direction. At this time, the screw pushes the ring pusher to slide along the limit groove to scrape the waste that falls off the filter plate assembly during vibration and guide it into the leakage hole and then out of the first cylinder. If, after the vibration preset time, either the obtained air pressure information or the wind speed difference information is still not within the corresponding preset threshold, the first valve in the first cylinder is closed and the valve in another first cylinder is opened to allow the exhaust gas in the furnace to be discharged from the backup channel and the filter plate assembly with low filtration rate is replaced.

[0024] S4. Repeat steps S1 to S3 to ensure that the gas pressure information inside the furnace and the wind speed difference information on both sides of the filter plate assembly are within the corresponding threshold.

[0025] This invention provides a trough-type zinc sheet melting and casting furnace for zinc ingot production lines, which has the following advantages compared with the prior art:

[0026] The gas pressure sensor is used to detect the gas pressure inside the furnace, and two wind speed sensors are used to obtain the wind speed difference information on both sides of the filter plate assembly. When either the gas pressure information or the wind speed difference information is not within the preset threshold, the second motor is turned on to rotate forward. At this time, the first crown gear drives the second crown gear to drive the lead screw to perform linear reciprocating motion in the horizontal direction. The lead screw pushes the filter plate assembly to hit the annular mounting plate to achieve vibration and impurity removal treatment of the filter plate assembly and improve the filtration rate of the filter plate assembly.

[0027] After the filter plate assembly vibrates for a preset time, the second motor reverses, and the first crown gear drives the second crown gear to rotate the lead screw in the horizontal direction. At this time, the lead screw pushes the annular pusher to slide along the limiting groove, scraping the waste that falls off the filter plate assembly and guiding it into the drain hole and then out of the first cylinder. If, after the preset vibration time, either the obtained air pressure information or the wind speed difference information is still not within the corresponding preset threshold, the first valve in the first cylinder is closed and the other valve in the first cylinder is opened, causing the exhaust gas in the furnace to be discharged from the backup channel. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0030] Figure 3 For the present invention Figure 2 Enlarged schematic diagram of part A in the diagram.

[0031] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of section B in the diagram.

[0032] Figure 5 This is a partial structural diagram of the filtration and cleaning mechanism of the present invention.

[0033] Figure 6 For the present invention Figure 5 Enlarged schematic diagram of section C in the diagram.

[0034] Figure reference numerals: 1. Furnace body; 2. Stirring assembly; 201. First motor; 202. Rotating shaft; 203. Stirring blade assembly; 2031. Mounting rod; 2032. Disturbance rod; 3. Exhaust gas treatment mechanism; 301. First cylinder; 302. T-joint; 303. Filter cleaning assembly; 3031. Annular mounting plate; 3032. Filter plate assembly; 3033. Floating assembly; 30331. Guide column; 30332. Baffle; 30333. Second cylinder; 303 4. Lead screw; 3035. Annular pusher; 3036. Leakage hole; 3037. Limiting groove; 304. Drive assembly; 3041. First support frame; 3042. First mounting cylinder; 3043. Second mounting cylinder; 3044. Second motor; 3045. First crown gear; 3046. Second crown gear; 3047. First elastic element; 3048. Rotating ring; 3049. Ratchet; 4. Feeding assembly; 401. Feed cylinder; 402. Valve; 5. Heating element. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0036] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0037] Please see Figures 1 to 6 According to one embodiment of the present invention, a trough-type zinc sheet melting and casting furnace for a zinc ingot production line includes a furnace body 1 and a feeding assembly 4 installed on the furnace body 1 for feeding materials, and further includes:

[0038] The stirring assembly 2 is installed on the furnace body 1 and is used to stir the materials located inside the furnace body 1.

[0039] The exhaust gas treatment unit 3 is installed on the furnace body 1 and is used to filter the exhaust gas generated by heating the materials in the furnace body 1.

[0040] The exhaust gas treatment mechanism 3 is provided in two sets. Each exhaust gas treatment mechanism 3 includes a first cylinder 301 and a three-way connector 302. The two first cylinders 301 are fixedly connected to the furnace body 1 and are in communication with the furnace body 1. A first valve (not shown in the figure) is installed inside each first cylinder 301. The two air inlets of the three-way connector 302 are correspondingly installed at the air outlets of the first cylinders 301. The mechanism also includes a filter cleaning assembly 303, which includes an annular mounting plate 3031, a filter plate assembly 3032, a floating assembly 3033, and a lead screw 3034. The annular mounting plate 3031 is fixedly installed on the first cylinder. Inside body 301, the filter plate assembly 3032 is mounted on an annular mounting plate 3031 via a floating component 3033. One end of the lead screw 3034 is rotatably connected to the filter plate assembly 3032. The lead screw 3034 is threadedly connected to an annular pusher 3035 that slides in a limiting groove 3037 on the first cylinder 301. The first cylinder 301 is also equipped with a drive component 304 for driving the lead screw 3034 to rotate and move linearly. The first cylinder 301 has a drain hole 3036 for discharging waste material. A second valve (not shown in the figure) is installed in the drain hole 3036.

[0041] The floating component 3033 includes a guide post 30331, a baffle 30332, and a second cylinder 30333. The guide post 30331 is slidably engaged with the second cylinder 30333, which is embedded in and mounted on the annular mounting plate 3031. The baffle 30332 is fixedly connected to one end of the guide post 30331 that extends into the second cylinder 30333. The baffle 30332 is slidably engaged with the second cylinder 30333. A second elastic element (not shown in the figure) is provided inside the second cylinder 30333. The second elastic element is fixedly connected to the baffle 30332 and the second cylinder 30333. The purpose of this arrangement is to use the second elastic element in conjunction with the guide post 30331 and the second cylinder 30333 to provide elastic support for the filter plate assembly 3032, thereby enabling the filter plate assembly 3032 to have floating space.

[0042] The drive assembly 304 includes a first support frame 3041, a first mounting cylinder 3042, a second mounting cylinder 3043, a second motor 3044, a first crown gear 3045, a second crown gear 3046, a first elastic element 3047, a rotating ring 3048, and a ratchet 3049. The first mounting cylinder 3042 is mounted on the first support frame 3041, which is fixedly connected to the first cylinder body 301. The second mounting cylinder 3043 is threadedly connected to the first support frame 3041. The second motor 3044 is detachably mounted on... Inside the second mounting cylinder 3043, the output shaft of the second motor 3044 is fixedly connected to the first crown gear 3045 rotatably connected inside the second mounting cylinder 3043. The second crown gear 3046 is fixedly connected to the lead screw 3034, and the second crown gear 3046 meshes with the first crown gear 3045. The ratchet 3049 is mounted on the first mounting cylinder 3042. The lead screw 3034 has a limiting groove that slides in cooperation with a limiting slider (not shown in the figure) fixedly connected to the inner ring of the ratchet 3049. (Not shown in the figure) The first elastic element 3047 is sleeved on the lead screw 3034, and both ends of the first elastic element 3047 are fixedly connected to rotating rings 3048. The two rotating rings 3048 are rotatably connected to the second crown gear 3046 and the first mounting cylinder 3042 respectively. When the second motor 3044 rotates forward, the first crown gear 3045 pushes the second crown gear 3046 to drive the lead screw 3034 to perform linear reciprocating motion in the horizontal direction. At this time, the lead screw 3034 pushes the filter plate assembly 3032 to impact. The annular mounting plate 3031 is used to vibrate and remove impurities from the filter plate assembly 3032, thereby improving the filtration rate of the filter plate assembly 3032. When the second motor 3044 reverses, the first crown gear 3045 pushes the second crown gear 3046 to drive the lead screw 3034 to rotate in the horizontal direction. At this time, the lead screw 3034 pushes the annular pusher 3035 to slide along the limiting groove 3037, scraping the waste that falls off the filter plate assembly 3032 and guiding it into the drain hole 3036 and then out into the first cylinder 301.

[0043] Preferably, the stirring assembly 2 includes a first motor 201, a rotating shaft 202, and a stirring blade assembly 203. The first motor 201 is detachably mounted on the furnace body 1. The rotating shaft 202 is rotatably connected to the furnace body 1. The stirring blade assembly 203 is mounted on the lower end of the rotating shaft 202. The stirring blade assembly 203 includes a mounting rod 2031 and a disturbance rod 2032. The mounting rod 2031 is arc-shaped and fits against the bottom of the furnace body 1. Several disturbance rods 2032 are provided and evenly mounted on the mounting rod 2031. The mounting rod 2031 is connected to the rotating shaft 202. 2. Fixed connection. The purpose of this setting is to use the first motor 201 to drive the rotating shaft 202 to rotate, and then use the rotating shaft 202 to push the mounting rod 2031 and the disturbance rod 2032 on the mounting rod 2031 to rotate, so as to stir the material located in the furnace body 1, so as to promote the material to be heated evenly and prevent the phenomenon of heat accumulation. At the same time, the arc-shaped inner wall of the bottom of the furnace body 1 can promote the material to be discharged from the furnace body 1, and the mounting rod 2031 attached to it can scrape the bottom of the furnace body 1, so that the material will not remain inside the furnace body 1.

[0044] Preferably, it further includes a detection component for detecting the internal pressure information of the furnace body 1 and the wind speed difference information on both sides of the filter plate assembly 3032, the detection component comprising:

[0045] A pressure sensor is installed inside the furnace body 1 to detect the pressure information inside the furnace body 1;

[0046] Two wind speed sensors are provided and installed on both sides of the filter plate assembly 3032 respectively, and are used to detect the wind speed difference information on both sides of the filter plate assembly 3032.

[0047] The air pressure sensor is used to detect the air pressure information inside the furnace body 1, and two wind speed sensors are used to obtain the wind speed difference information on both sides of the filter plate assembly 3032. If either the obtained air pressure information or the wind speed difference information is not within the preset threshold, the second motor 3044 is turned on to rotate forward. At this time, the first crown gear 3045 drives the second crown gear 3046 to drive the lead screw 3034 to perform linear reciprocating motion in the horizontal direction. At this time, the lead screw 3034 pushes the filter plate assembly 3032 to hit the annular mounting plate 3031 to achieve vibration and impurity removal of the filter plate assembly 3032. If, after the preset vibration time, either the obtained air pressure information or the wind speed difference information is still not within the corresponding preset threshold, the first valve in the first cylinder 301 is closed and the other valve in the first cylinder 301 is opened to cause the exhaust gas in the furnace body 1 to be discharged from the backup channel.

[0048] Preferably, the feeding assembly 4 includes a feeding cylinder 401 and a valve 402. The feeding cylinder 401 is fixedly installed on the furnace body 1, and the valve 402 is installed inside the feeding cylinder 401. The purpose of this arrangement is to facilitate technicians to introduce materials into the furnace body 1.

[0049] Preferably, a heating element 5 for heating the interior of the furnace body 1 is embedded in the side wall of the furnace body 1.

[0050] In this embodiment of the invention, a pressure sensor is used to detect the air pressure information inside the furnace body 1, and two wind speed sensors are used to obtain the wind speed difference information on both sides of the filter plate assembly 3032. When either the obtained air pressure information or the wind speed difference information is not within a preset threshold, the second motor 3044 is turned on to rotate forward. At this time, the first crown gear 3045 drives the second crown gear 3046 to drive the lead screw 3034 to perform linear reciprocating motion in the horizontal direction. At this time, the lead screw 3034 pushes the filter plate assembly 3032 to impact the annular mounting plate 3031, so as to realize the vibration and impurity removal treatment of the filter plate assembly 3032, improve the filtration rate of the filter plate assembly 3032, and after the vibration is performed for a preset time... The second motor 3044 is reversed, and the first crown gear 3045 drives the second crown gear 3046 to drive the lead screw 3034 to rotate horizontally. At this time, the lead screw 3034 pushes the annular pusher 3035 to slide along the limiting groove 3037, scraping the waste that falls off the filter plate assembly 3032 and guiding it into the drain hole 3036 and then out of the first cylinder 301. If, after the preset vibration time, either the obtained air pressure information or the wind speed difference information is still not within the corresponding preset threshold, the first valve in the first cylinder 301 is closed and the other valve in the first cylinder 301 is opened, so that the exhaust gas in the furnace 1 is discharged from the backup channel.

[0051] A method of using a trough-type zinc sheet melting and casting furnace in a zinc ingot production line includes the following steps:

[0052] S1. Use a pressure sensor to detect the pressure information inside the furnace body 1, and use two wind speed sensors to obtain the wind speed difference information on both sides of the filter plate assembly 3032.

[0053] S2. When either the obtained air pressure information or the wind speed difference information is not within the preset threshold, the second motor 3044 is turned on to rotate forward. At this time, the first crown gear 3045 drives the second crown gear 3046 to drive the lead screw 3034 to perform linear reciprocating motion in the horizontal direction. At this time, the lead screw 3034 pushes the filter plate assembly 3032 to hit the annular mounting plate 3031 to achieve vibration and impurity removal of the filter plate assembly 3032.

[0054] S3. After the vibration preset time, the second motor 3044 is reversed. The first crown gear 3045 drives the second crown gear 3046 to drive the lead screw 3034 to rotate in the horizontal direction. At this time, the lead screw 3034 pushes the ring pusher 3035 to slide along the limiting groove 3037 to scrape the waste that falls off the filter plate assembly 3032 and guide it into the leakage hole 3036 and then discharge it into the first cylinder 301. If, after the vibration preset time, either the obtained air pressure information or the wind speed difference information is still not within the corresponding preset threshold, the first valve in the first cylinder 301 is closed and the other valve in the first cylinder 301 is opened to cause the exhaust gas in the furnace 1 to be discharged from the backup channel and the filter plate assembly 3032 with low filtration rate is replaced.

[0055] S4. Repeat steps S1 to S3 to ensure that the gas pressure information inside the furnace body 1 and the wind speed difference information on both sides of the filter plate assembly 3032 are within the corresponding threshold.

[0056] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0057] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A trough-type zinc sheet melting and casting furnace for a zinc ingot production line, comprising a furnace body (1) and a feeding assembly (4) mounted on the furnace body (1) for feeding materials, characterized in that, Also includes: A stirring assembly (2) is installed on the furnace body (1) and is used to stir the materials located in the furnace body (1); The exhaust gas treatment mechanism (3) is installed on the furnace body (1) and is used to filter the exhaust gas generated by heating the material in the furnace body (1); The exhaust gas treatment mechanism (3) is provided in two sets. The exhaust gas treatment mechanism (3) includes a first cylinder (301) and a three-way connector (302). The two first cylinders (301) are fixedly connected to the furnace body (1) and are in communication with the furnace body (1). A first valve is installed inside the first cylinder (301). The two air inlets of the three-way connector (302) are installed at the air outlets of the first cylinders (301). The mechanism also includes a filter cleaning assembly (303). The filter cleaning assembly (303) includes an annular mounting plate (3031), a filter plate assembly (3032), a floating assembly (3033), and a lead screw ( 3034), the annular mounting plate (3031) is fixedly installed inside the first cylinder (301), the filter plate assembly (3032) is installed on the annular mounting plate (3031) through the floating component (3033), one end of the lead screw (3034) is rotatably connected to the filter plate assembly (3032), the lead screw (3034) is threadedly connected to an annular pusher (3035) that slides in cooperation with the limiting groove (3037) opened on the first cylinder (301), and the first cylinder (301) is also equipped with a drive component (304) for driving the lead screw (3034) to rotate and move linearly. The floating component (3033) includes a guide post (30331), a baffle (30332), and a second cylinder (30333). The guide post (30331) is slidably engaged with the second cylinder (30333) embedded in the annular mounting plate (3031). The baffle (30332) is fixedly connected to one end of the guide post (30331) extending into the second cylinder (30333). The baffle (30332) is slidably engaged with the second cylinder (30333). A second elastic element is provided inside the second cylinder (30333). The second elastic element is fixedly connected to the baffle (30332) and the second cylinder (30333). The drive assembly (304) includes a first support frame (3041), a first mounting cylinder (3042), a second mounting cylinder (3043), a second motor (3044), a first crown gear (3045), a second crown gear (3046), a first elastic element (3047), a rotating ring (3048), and a ratchet (3049). The first mounting cylinder (3042) is mounted on the first support frame (3041) which is fixedly connected to the first cylinder body (301). The second mounting cylinder (3043) is threadedly connected to the first support frame (3041). The second motor (3044) is detachably mounted inside the second mounting cylinder (3043). The output shaft of the second motor (3044) is rotatably connected to the second mounting cylinder (3043). The first crown gear (3045) is fixedly connected to the first crown gear (3046), and the second crown gear (3046) is fixedly connected to the lead screw (3034). The second crown gear (3046) meshes with the first crown gear (3045). The ratchet (3049) is mounted on the first mounting cylinder (3042). The lead screw (3034) has a limiting groove that slides in cooperation with the limiting slider fixedly connected to the inner ring of the ratchet (3049). The first elastic element (3047) is sleeved on the lead screw (3034), and both ends of the first elastic element (3047) are fixedly connected with rotating rings (3048). The two rotating rings (3048) are rotatably connected to the second crown gear (3046) and the first mounting cylinder (3042).

2. The trough-type zinc sheet melting and casting furnace for a zinc ingot production line according to claim 1, characterized in that, The first cylinder (301) has a drain hole (3036) for discharging waste material, and a second valve is installed in the drain hole (3036).

3. The trough-type zinc sheet melting and casting furnace for a zinc ingot production line according to claim 1, characterized in that, The stirring assembly (2) includes a first motor (201), a rotating shaft (202), and a stirring blade assembly (203). The first motor (201) is detachably mounted on the furnace body (1). The rotating shaft (202) is rotatably connected to the furnace body (1). The stirring blade assembly (203) is mounted on the lower end of the rotating shaft (202). The stirring blade assembly (203) includes a mounting rod (2031) and a disturbance rod (2032). The mounting rod (2031) is arc-shaped and fits the bottom of the furnace body (1). Several disturbance rods (2032) are provided and evenly mounted on the mounting rod (2031). The mounting rod (2031) is fixedly connected to the rotating shaft (202).

4. The trough-type zinc sheet melting and casting furnace for a zinc ingot production line according to claim 1, characterized in that, The feeding assembly (4) includes a feeding cylinder (401) and a valve (402). The feeding cylinder (401) is fixedly installed on the furnace body (1), and the valve (402) is installed inside the feeding cylinder (401).

5. The trough-type zinc sheet melting and casting furnace for a zinc ingot production line according to claim 2, characterized in that, It also includes a detection component for detecting the internal pressure information of the furnace body (1) and the wind speed difference information on both sides of the filter plate assembly (3032).

6. The trough-type zinc sheet melting and casting furnace for a zinc ingot production line according to claim 5, characterized in that, The detection component includes: A pressure sensor is installed inside the furnace body (1) to detect the pressure information inside the furnace body (1); Two wind speed sensors are provided and installed on both sides of the filter plate assembly (3032) to detect the wind speed difference between the two sides of the filter plate assembly (3032).

7. The trough-type zinc sheet melting and casting furnace for a zinc ingot production line according to claim 1, characterized in that, The furnace body (1) has a heating element (5) embedded in its side wall for heating the interior of the furnace body (1).

8. A method of using a trough-type zinc sheet melting and casting furnace for a zinc ingot production line, comprising the trough-type zinc sheet melting and casting furnace for a zinc ingot production line as described in claim 6, characterized in that, Includes the following steps: S1. Use a pressure sensor to detect the pressure information inside the furnace body (1), and use two wind speed sensors to obtain the wind speed difference information on both sides of the filter plate assembly (3032). S2. When either the obtained air pressure information or the wind speed difference information is not within the preset threshold, the second motor (3044) is turned on to rotate in the forward direction. At this time, the first crown gear (3045) drives the second crown gear (3046) to drive the screw (3034) to perform linear reciprocating motion in the horizontal direction. At this time, the screw (3034) pushes the filter plate assembly (3032) to hit the annular mounting plate (3031) to achieve vibration and impurity removal treatment of the filter plate assembly (3032). S3. After the vibration preset time, the second motor (3044) is reversed. The first crown gear (3045) drives the second crown gear (3046) to drive the screw (3034) to rotate in the horizontal direction. At this time, the screw (3034) pushes the ring pusher (3035) to slide along the limit groove (3037) to scrape the waste that falls off the filter plate assembly (3032) and guide it into the drain hole (3036) and then discharge it into the first cylinder (301). If, after the vibration preset time, either the gas pressure information or the wind speed difference information is not within the corresponding preset threshold, the first valve in the first cylinder (301) is closed and the valve in another first cylinder (301) is opened to cause the exhaust gas in the furnace (1) to be discharged from the backup channel and the filter plate assembly (3032) with low filtration rate is replaced. S4. Repeat steps S1 to S3 to ensure that the gas pressure information in the furnace body (1) and the wind speed difference information on both sides of the filter plate assembly (3032) are within the corresponding threshold.

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