Anti-leakage device for transfer pouring chute of smelting furnace

Abstract

The utility model discloses an anti-leakage device for a transfer injection chute of a smelting furnace. The anti-leakage device comprises the transfer injection chute and a laser detector used for detecting the height of the liquid level in the transfer injection chute, wherein a first electromagnetic gate valve is arranged at the discharge end of the transfer injection chute, and a second electromagnetic gate valve is arranged at the emergency discharge port of the transfer injection chute; the first electromagnetic gate valve and the second electromagnetic gate valve are the same in structure. According to the utility model, the real-time online monitoring of the liquid level in the transfer pouring chute of the smelting furnace during transfer pouring can be realized, and the normal liquid level height alarm value can be set according to the use condition; the device can effectively and accurately measure the height of the liquid level in real time, closing and opening of the flashboard are controlled in time through changes of the liquid level, furnace burden leakage in the transfer injection process is avoided, safe production is ensured, and economic benefits are remarkable. After the anti-leakage device of the transfer pouring chute is installed, one person can operate, the whole process is automatically controlled, the method is simple, and the working intensity of workers is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy casting, in particular to a device for preventing leakage of a pouring chute of a melting furnace. Background Art

[0002] In the production of aluminum alloy melting and casting, most of the current melting and casting lines are composed of three parts: a melting furnace + a holding furnace + a casting machine. Between the melting furnace and the holding furnace, a pouring chute is needed to realize the transfer of furnace charge. The pouring chute is mainly composed of a steel structure, a high-temperature resistant lining, etc. Since the depth of the pouring chute is only about 40CM, during the pouring process of up to 1-2 hours, once the chute is blocked or the furnace eye of the melting furnace leaks aluminum, the furnace charge will overflow from the chute, resulting in scalding incidents. In severe cases, it will cause major production safety accidents. The outflow of high-temperature aluminum liquid will damage the surrounding equipment and facilities, and even cause a fire. Furthermore, it will lead to the shutdown of its production line. In the past, during the pouring operation, a special person was needed to be responsible for monitoring. Often, due to other work, the personnel could not monitor the whole process, could not handle the danger in time, and irreversible accidents occurred. Content of the Utility Model

[0003] The purpose of the utility model is to provide a device for preventing leakage of a pouring chute of a melting furnace, which can monitor the height of the furnace charge liquid level in the pouring chute of the melting furnace in real time, timely detect abnormal liquid level conditions and automatically discharge the material; realize the liberation of labor, eliminate the unsafe behaviors of people, and provide accurate real-time liquid level height monitoring data to automatically eliminate danger.

[0004] To solve the above technical problems, the utility model adopts the following technical solutions:

[0005] The utility model provides a device for preventing leakage of a pouring chute of a melting furnace, including a pouring chute and a laser detector for detecting the height of the liquid level in the pouring chute;

[0006] Wherein, a first electromagnetic gate valve is arranged at the discharging end of the pouring chute, and a second electromagnetic gate valve is arranged at the emergency discharging opening of the pouring chute;

[0007] The first electromagnetic gate valve and the second electromagnetic gate valve have the same structure;

[0008] Wherein, the first electromagnetic gate valve includes a fixed bracket arranged on the pouring chute, a telescopic cylinder arranged on the fixed bracket, and a gate plate connected to the lower end of the telescopic cylinder.

[0009] Furthermore, a guide sleeve is arranged on the fixed bracket, and a directional rod adapted to the guide sleeve is arranged on the gate plate.

[0010] Still further, a sealing and heat-insulating layer is arranged outside the gate plate, and the material of the sealing and heat-insulating layer is silica cotton.

[0011] Furthermore, the telescopic cylinder is a cylinder provided on the fixed bracket, and a cylinder solenoid valve for controlling the cylinder is also provided on the fixed bracket.

[0012] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:

[0013] The present utility model can realize real-time online monitoring of the liquid level height in the transfer chute of the smelting furnace during transfer, and the normal liquid level height alarm value can be set according to the usage situation; it can effectively, accurately and instantaneously measure the liquid level height, and timely control the closing and opening of the gate through the change of the liquid level, avoiding the occurrence of furnace charge leakage events during the transfer process, ensuring safe production, and having remarkable economic benefits; it further promotes the enterprise to reduce costs and increase efficiency, and improves the fine management level of the production team. After installing the anti-leakage device for the transfer chute, it can be operated by a single person, with full-automatic control throughout the process, simple method, and reduced labor intensity of employees. Description of the Drawings

[0014] The following further describes the present utility model with reference to the drawings.

[0015] Figure 1 It is a schematic diagram of the installation positions of the emergency discharge port and the gate in the anti-leakage device for the transfer chute of the smelting furnace of the present utility model;

[0016] Figure 2 It is a schematic diagram of the installation of the cylinder gate in the anti-leakage device for the transfer chute of the smelting furnace of the present utility model;

[0017] Figure 3 It is a schematic diagram of the installation of the laser detector in the anti-leakage device for the transfer chute of the smelting furnace of the present utility model;

[0018] Figure 4 It is a schematic diagram of the control of the anti-leakage device for the transfer chute of the smelting furnace of the present utility model.

[0019] Description of the reference numerals: 1, transfer chute; 101, emergency discharge port; 102, feeding end; 103, discharging end; 2, laser detector; 3, first electromagnetic gate valve; 301, fixed bracket; 302, telescopic cylinder; 303, directional rod; 304, gate; 305, sealed heat-insulating layer; 306, cylinder solenoid valve; 4, second electromagnetic gate valve; 5, transfer liquid. Detailed Embodiments

[0020] As Figure 1 and Figure 3As shown in the figure, in this embodiment, a device for preventing leakage of a pouring chute of a smelting furnace is disclosed, which includes a pouring chute 1 and a laser detector 2 for detecting the liquid level height in the pouring chute 1. A first electromagnetic gate valve 3 is installed at the discharging end of the pouring chute 1, and a second electromagnetic gate valve 4 is installed at the emergency discharging port of the pouring chute 1; the first electromagnetic gate valve 3 and the second electromagnetic gate valve 4 have the same structure. According to the liquid level height in the pouring chute 1 detected by the laser detector 2 in real time and compared with a set value, it is determined whether to open or close the first electromagnetic gate valve 3 and the second electromagnetic gate valve 4.

[0021] In this embodiment, as Figure 2 shown, the first electromagnetic gate valve 3 includes a fixed bracket 301 installed on the pouring chute 1, a telescopic cylinder 302 fixedly installed on the fixed bracket 301, and a gate plate 304 connected to the lower end of the telescopic cylinder 302. Specifically, the fixed bracket 301 includes support columns fixed on both side edges of the pouring chute 1 and a top plate installed on the top plate of the support columns.

[0022] In this embodiment, a guide sleeve is installed on the top plate of the fixed bracket 301, and a directional rod 303 adapted to the guide sleeve is vertically connected to the gate plate 304. In this embodiment, the telescopic cylinder 302 is a cylinder installed on the top plate of the fixed bracket 301, and a cylinder solenoid valve 306 for controlling the cylinder is also installed on the fixed bracket 301.

[0023] In this embodiment, as Figure 2 shown, a sealing and heat-insulating layer 305 is installed outside the gate plate 304, and the material of the sealing and heat-insulating layer 305 is silica cotton; specifically, a silica cotton structure for sealing is installed at the contact position between the gate plate 304 and the inner wall of the pouring chute 1.

[0024] The working principle of the present utility model:

[0025] The laser detector 2 is installed above the pouring chute 1, and the liquid level height during normal pouring is set. When the liquid level height exceeds the set liquid level height, a signal is fed back to the control module to realize the detection of the liquid level height in the pouring chute 1. A discharging outlet is designed on the side of the original straight-through chute, and a gate plate is designed and installed. The gate plate is linked with the cylinder and is controlled by the cylinder solenoid valve. After receiving the signal, the gate plate at the discharging end can be automatically opened, and the gate plate at the emergency discharging port can be automatically closed synchronously. Both gate plates are made of a cylinder and a steel plate, and the cylinder is controlled by the cylinder solenoid valve. To avoid the problem that the gate plate cannot be closely attached to the inside of the chute after descending and the furnace charge cannot be completely blocked, silica cotton is placed on the gate plate.

[0026] As Figure 4As shown in the figure, connect the laser controller, digital display controller, cylinder solenoid valve, cylinder gate plate, etc. to achieve automatic control. The principle is that when the actual liquid level exceeds the set maximum liquid level of the laser detector during the pouring process, the laser detector transmits a signal to the module, and the module transmits the abnormal signal to the cylinder solenoid valve. The cylinder solenoid valve controls the cylinder gate plate. Solenoid valve 2 opens the gate plate at the emergency discharge port, and at the same time, solenoid valve 1 closes the upper gate plate at the discharge end, so as to quickly discharge the furnace charge into the emergency slag box through the emergency discharge port; after the abnormal situation is handled, when the liquid level returns below the set maximum liquid level, solenoid valve 2 closes the gate plate at the emergency discharge port, and at the same time, solenoid valve 1 opens the upper gate plate at the discharge end to achieve normal pouring operation.

[0027] The above embodiments only describe the preferred mode of the present invention, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A device for preventing leakage of a pouring chute of a smelting furnace, characterized in that: It includes a pouring chute (1) and a laser detector (2) for detecting the liquid level height in the pouring chute (1); Wherein, a first electromagnetic gate valve (3) is provided at the discharging end of the pouring chute (1), and a second electromagnetic gate valve (4) is provided at the emergency discharging opening of the pouring chute (1); The first electromagnetic gate valve (3) and the second electromagnetic gate valve (4) have the same structure; Wherein, the first electromagnetic gate valve (3) includes a fixed bracket (301) arranged on the pouring chute (1), a telescopic cylinder (302) arranged on the fixed bracket (301), and a gate plate (304) connected to the lower end of the telescopic cylinder (302).

2. The device for preventing leakage of the tapping chute of the smelting furnace according to claim 1, characterized in that: A guide sleeve is arranged on the fixed bracket (301), and a guiding rod (303) adapted to the guide sleeve is arranged on the gate plate (304).

3. The device for preventing leakage of the pouring chute of the smelting furnace according to claim 2, characterized in that: A sealing and heat-insulating layer (305) is arranged outside the gate plate (304), and the material of the sealing and heat-insulating layer (305) is silica cotton.

4. The device for preventing leakage of the tapping chute of the smelting furnace according to claim 1, wherein: The telescopic cylinder (302) is a cylinder arranged on the fixed bracket (301), and a cylinder solenoid valve (306) for controlling the cylinder is further arranged on the fixed bracket (301).

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