Explosion-proof device for smelting furnace

Abstract

The utility model discloses a smelting furnace explosion-proof device in the related technical field of explosion-proof devices, which comprises a pressure relief box and a driving box connected with the pressure relief box, the driving box is fixedly connected onto the pressure relief box, a driving motor is arranged in the driving box, one side of the pressure relief box is fixedly connected with a connecting support, and the other side of the pressure relief box is fixedly connected with the connecting support. One end of the connecting support is fixedly connected with the driving box, the other end of the connecting support is fixedly connected with a pipe support, a primary pressure relief pipe and a secondary pressure relief pipe are arranged on the driving box, the pipe support is arranged on the primary pressure relief pipe and the secondary pressure relief pipe in a sleeving mode, and the other end of the primary pressure relief pipe and the other end of the secondary pressure relief pipe are connected with a smelting furnace cover body. Through the design of the first-stage pressure relief valve, the first-stage pressure relief pipe and the pressure relief box, power is not needed, the pressure in the smelting furnace can be reduced, the anti-explosion effect is achieved, practicability and economical efficiency are good, through the design of the second-stage pressure relief valve, the second-stage pressure relief pipe, the driving motor and the pressure relief box, the pressure relief efficiency is improved, and the pressure relief range is widened. And the practicability and the safety of the device are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to explosion-proof devices, and specifically relates to an explosion-proof device for a smelting furnace. Background Art

[0002] Melting furnaces are important equipment for melting and raising the temperature of metals or metal alloys and are widely used in the chemical industry. During operation, there are generally two heating methods in the melting furnace, namely direct heating and indirect heating. The direct heating method is a heating method in which the heat generated by the combustion of fuel or the heat generated by the resistance element is directly transferred to the heating charge; there are two types of indirect heating methods. The first type is that the combustion products or the energized resistance element do not directly heat the furnace charge, but first heat the heat transfer medium such as the radiant tube, and then the heat is transferred to the furnace charge by radiation and convection; the second type is to pass alternating current through the coil to generate an alternating magnetic field, and use the induced current to heat the furnace charge in the magnetic field. The heating elements such as the induction coil are separated from the furnace charge by the furnace lining material. Regardless of the heating method used, a large amount of heat will be generated in the melting furnace. However, traditional melting furnaces are not equipped with a heat dissipation structure to help dissipate heat. Patent CN104846215B proposes a smelting furnace, in which a cavity with an open upper end is defined in the furnace body, the cavity having a small diameter area and a large diameter area located above the small diameter area, the inner diameter of the large diameter area being larger than the inner diameter of the small diameter area, the small diameter area being provided with a discharge port, the furnace roof being provided on the furnace body and covering the upper end of the cavity, the furnace roof being dome-shaped, the top of the furnace roof being provided with a feeding port and a spray gun port, the exhaust flue being provided obliquely upward on the side wall of the furnace body, the exhaust flue being connected to the cavity, the spray gun being provided in the spray gun port and extending downward into the small diameter area. This technical solution can save energy, improve the reaction conditions of combustibles, improve the working efficiency of the smelting furnace, and reduce the emission of harmful gases and avoid environmental pollution. Although this design meets the needs of use to a certain extent, it was found in actual use that the melting furnace of the above technical solution would generate a large amount of heat during the heating process. At this time, if the melting furnace cannot be effectively dissipated in a confined space, it is very easy to cause the melting furnace to overheat, and then cause disasters such as explosions and fires.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an explosion-proof device for a smelting furnace. To solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0005] The utility model provides an explosion -proof device of smelting furnace, including pressure relief tank and drive case with its connection, the pressure relief tank is fixedly connected with drive case, drive motor is arranged in drive case, one side of pressure relief tank is fixedly connected with connecting support, the other end of connecting support is fixedly connected with pipe support, drive case is provided with primary pressure relief pipe and secondary pressure relief pipe, pipe support is set on primary pressure relief pipe and secondary pressure relief pipe, and the other end of primary pressure relief pipe and secondary pressure relief pipe is connected with smelting furnace cover, primary pressure relief pipe is provided with primary pressure relief valve, secondary pressure relief pipe is provided with secondary pressure relief valve, smelting furnace cover is provided with pressure sensor, the pressure relief tank is convenient for heat exchange, and then completes pressure relief, and connecting support and pipe support play the role of stable support, and primary pressure relief pipe and secondary pressure relief pipe play the role of flow guide, and primary pressure relief valve and secondary pressure relief valve play the role of starting control opening and closing, and the pressure sensor is convenient for monitoring the pressure in smelting furnace.

[0006] As a further scheme of the utility model: the water inlet pipe and the drain pipe are arranged on the side of the pressure relief tank away from the connecting support, the drain pipe is provided with a manual valve, the water inlet pipe and the drain pipe play the role of flow guide, and the manual valve plays the role of control opening and closing.

[0007] As a further scheme of the utility model: the control box is fixedly connected to the pressure relief tank, the pressure sensor, the primary pressure relief valve, the secondary pressure relief valve and the drive motor are connected to the control box through wires, and automatic control is realized through the above design.

[0008] As a further scheme of the utility model: the motor support is fixedly connected in the drive case, the drive motor is arranged on the motor support, the gear box is arranged on the side of the drive motor, the drive motor is connected to the input end of the gear box, the motor support plays the role of stable support, and the gear box plays the role of power transmission.

[0009] As a further scheme of the utility model: the air suction pump is arranged on the side of the gear box, the output end of the gear box is connected to the air suction pump, the exhaust end of the air suction pump is connected to the secondary pressure relief pipe through the connecting sleeve, the air inlet end of the air suction pump is connected to the pressure relief exhaust pipe through the connecting sleeve, the air suction pump is convenient for converting mechanical energy into air supply kinetic energy, and the pressure relief exhaust pipe plays the role of heat exchange and pressure relief.

[0010] As a further scheme of the utility model: the heat dissipation frame is arranged on the pressure relief exhaust pipe, the connecting pipe is connected to the one end of the pressure relief exhaust pipe away from the air suction pump through the pipe joint, the other end of the connecting pipe is connected to the primary pressure relief pipe through the connecting sleeve, the heat dissipation frame plays the role of heat dissipation, and the connecting pipe plays the role of connection and flow guide.

[0011] As a further solution of the present invention: a temperature sensor is provided in the pressure relief box, and the temperature sensor is connected to the control box through a wire. The heat dissipation rack consists of a first rack and a second rack. The design of the temperature sensor facilitates the detection of the water temperature in the pressure relief box.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art.

[0013] The utility model, through the design of the first-stage pressure relief valve, the first-stage pressure relief pipe and the pressure relief box, can perform primary cooling of the hot air in the smelting furnace without the need for power, so as to reduce the air temperature and further reduce the pressure in the smelting furnace, thereby achieving an explosion-proof effect and having good practicality and economy.

[0014] The utility model, through the design of the secondary pressure relief valve, the secondary pressure relief pipe, the drive motor and the pressure relief box, can actively release pressure through the drive motor when the primary pressure relief is insufficient, thereby improving the pressure relief efficiency and pressure relief range, and further improving the practicality and safety of the device.

[0015] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are part of this application and are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without inventive work. In the drawings:

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is the main view of the utility model;

[0019] Figure 3 This is a cross-sectional view of the heat dissipation rack of the present invention;

[0020] Figure 4 This is the control block diagram of the utility model.

[0021] In the figure: 1. Pressure relief box; 2. Drain pipe; 3. Manual valve; 4. Water inlet pipe; 5. Control box; 6. Drive box; 7. Secondary pressure relief pipe; 8. Primary pressure relief pipe; 9. Pipe bracket; 10. Secondary pressure relief valve; 11. Melting furnace cover; 12. Pressure sensor; 13. Primary pressure relief valve; 14. Connecting bracket; 15. Motor support; 16. Drive motor; 17. Gear box; 18. Exhaust pump; 19. Connecting sleeve; 20. Connecting pipe; 21. Pipe joint; 22. Pressure relief drain pipe; 23. Heat sink; 24. Temperature sensor; 25. Rack No. 1; 26. Rack No. 2.

[0022] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0024] like Figures 1 to 4 As shown, a smelting furnace explosion-proof device, a pressure relief box 1 and a drive box 6 connected thereto, the pressure relief box 1 is fixedly connected to the drive box 6, the drive box 6 is provided with a drive motor 16, one side of the pressure relief box 1 is fixedly connected to a connecting bracket 14, the other end of the connecting bracket 14 is fixedly connected to a pipe bracket 9, the drive box 6 is provided with a primary pressure relief pipe 8 and a secondary pressure relief pipe 7, the pipe bracket 9 is sleeved on the primary pressure relief pipe 8 and the secondary pressure relief pipe 7, the other end of the primary pressure relief pipe 8 and the secondary pressure relief pipe 7 is connected to the smelting furnace cover 1 1 connection, a first-level pressure relief valve 13 is provided on the first-level pressure relief pipe 8, a second-level pressure relief valve 10 is provided on the second-level pressure relief pipe 7, and a pressure sensor 12 is provided on the smelting furnace cover 11. The pressure relief box 1 is convenient for heat exchange, thereby completing the pressure relief. The connecting bracket 14 and the pipe bracket 9 play a role of stable support. The first-level pressure relief pipe 8 and the second-level pressure relief pipe 7 play a role of diversion. The first-level pressure relief valve 13 and the second-level pressure relief valve 10 start to control the opening and closing. The pressure sensor 12 is convenient for monitoring the pressure in the smelting furnace.

[0025] Among them, a water inlet pipe 4 and a drain pipe 2 are provided on the side of the pressure relief box 1 away from the connecting bracket 14, and a manual valve 3 is provided on the drain pipe 2. The water inlet pipe 4 and the drain pipe 2 play a role in diverting flow, and the manual valve 3 plays a role in controlling opening and closing.

[0026] The pressure relief box 1 is fixedly connected to the control box 5, and the pressure sensor 12, the first-level pressure relief valve 13, the second-level pressure relief valve 10 and the drive motor 16 are all connected to the control box 5 through wires. The above design facilitates automatic control.

[0027] A motor support 15 is fixedly connected to the drive box 6, and a drive motor 16 is provided on the motor support 15. A gear box 17 is provided on one side of the drive motor 16. The input ends of the drive motor 16 and the gear box 17 are connected to the motor support 15 to play a role of stable support, and the gear box 17 plays a role of power transmission.

[0028] An exhaust pump 18 is provided on one side of the gear box 17. The output end of the gear box 17 is connected to the exhaust pump 18. The exhaust end of the exhaust pump 18 is connected to the secondary pressure relief pipe 7 through a connecting sleeve 19. The air inlet end of the exhaust pump 18 is connected to the pressure relief pipe 22 through the connecting sleeve 19. The exhaust pump 18 facilitates the conversion of mechanical energy into air supply kinetic energy. The pressure relief pipe 22 plays the role of heat exchange and pressure relief.

[0029] A heat sink 23 is provided on the pressure relief pipe 22. One end of the pressure relief pipe 22 away from the exhaust pump 18 is connected to the connecting pipe 20 through a pipe joint 21. The other end of the connecting pipe 20 is connected to the first-level pressure relief pipe 8 through a connecting sleeve 19 to the heat sink 23 to play a role in heat dissipation. The connecting pipe 20 plays a role in connection and diversion.

[0030] A temperature sensor 24 is provided in the pressure relief box 1 , and the temperature sensor 24 is connected to the control box 5 via a wire. The heat dissipation frame 23 is composed of a first frame 25 and a second frame 26 . The design of the temperature sensor 24 facilitates the detection of the water temperature in the pressure relief box 1 .

[0031] The working principle of the utility model is: before use, connect the first-level pressure relief valve 13, the second-level pressure relief valve 10 and the pressure sensor 12 to the smelting furnace cover 11, and then add an appropriate amount of clean water to the pressure relief box 1 through the water inlet pipe 4, and then it can be used. When in use, the device is started through the control box 5, and the pressure sensor 12 works to monitor the pressure in the smelting furnace. When the pressure in the smelting furnace exceeds the first-level pressure relief set value, the first-level pressure relief valve 13 works, the first-level pressure relief pipe 8 is connected, and the high-pressure gas in the smelting furnace flows into the pressure relief pipe 8 through the first-level pressure relief pipe 8 and the connecting pipe 20. The air in the pressure relief pipe 22 and the pressure relief pipe 22 mixes with the air in the smelting furnace to reduce the gas pressure in the smelting furnace. At the same time, the hot air in the pressure relief pipe 22 exchanges heat with the clean water in the pressure relief box 1 through the heat dissipation rack 23, so that the air temperature in the pressure relief pipe 22 is reduced, so as to further reduce the air pressure in the smelting furnace. When the pressure in the smelting furnace continues to rise under the first-level pressure relief function and reaches the second-level pressure relief set value, the first-level pressure relief valve 13 and the second-level pressure relief valve 10 work, and the first-level pressure relief pipe 8 and the second-level pressure relief pipe 7 are connected. The driving motor 16 works, and drives the exhaust pump 18 to work through the gear box 17, so that the air in the smelting furnace circulates in the primary pressure relief pipe 8, the connecting pipe 20, the pressure relief exhaust pipe 22, and the secondary pressure relief pipe 7. When the hot air flows through the pressure relief exhaust pipe 22, the hot air exchanges heat with the clean water through the heat dissipation rack 23, thereby improving the heat exchange efficiency and increasing the cooling efficiency of the hot air to achieve the purpose of pressure reduction and explosion prevention. During the operation of the device, the temperature sensor 24 works to monitor the clean water temperature to ensure the heat exchange efficiency. The structural design of the utility model is reasonable. It is easy to install and use. Through the design of the first-level pressure relief valve 13, the first-level pressure relief pipe 8 and the pressure relief box 1, no power is required, that is, the hot air in the smelting furnace can be primarily cooled to reduce the air temperature, thereby reducing the pressure in the smelting furnace, and having an explosion-proof effect, with good practicality and economy. Through the design of the second-level pressure relief valve 10, the second-level pressure relief pipe 7, the drive motor 16 and the pressure relief box 1, when the primary pressure relief is insufficient, the drive motor 16 can be used to actively release the pressure, thereby improving the pressure relief efficiency and pressure relief range, and further improving the practicality and safety of the device.

[0032] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above-mentioned technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A smelting furnace explosion-proof device, comprising a pressure relief box (1) and a drive box (6) connected thereto, characterized in that: The pressure relief box (1) is fixedly connected to the driving box (6), and a driving motor (16) is arranged in the driving box (6). A connecting bracket (14) is fixedly connected to one side of the pressure relief box (1), and the other end of the connecting bracket (14) is fixedly connected to a pipe bracket (9). A first-level pressure relief pipe (8) and a second-level pressure relief pipe (7) are arranged on the driving box (6), and the pipe bracket (9) is sleeved on the first-level pressure relief pipe (8) and the second-level pressure relief pipe (7). The other ends of the first-level pressure relief pipe (8) and the second-level pressure relief pipe (7) are connected to the smelting furnace cover (11). A first-level pressure relief valve (13) is arranged on the first-level pressure relief pipe (8), and a second-level pressure relief valve (10) is arranged on the second-level pressure relief pipe (7). A pressure sensor (12) is arranged on the smelting furnace cover (11).

2. The explosion-proof device for a smelting furnace according to claim 1, characterized in that: A water inlet pipe (4) and a drain pipe (2) are provided on a side of the pressure relief box (1) away from the connecting bracket (14), and a manual valve (3) is provided on the drain pipe (2).

3. The explosion-proof device for a smelting furnace according to claim 1, characterized in that: A control box (5) is fixedly connected to the pressure relief box (1), and the pressure sensor (12), the first-stage pressure relief valve (13), the second-stage pressure relief valve (10) and the drive motor (16) are all connected to the control box (5) via wires.

4. The explosion-proof device for a smelting furnace according to claim 3, characterized in that: A motor support (15) is fixedly connected to the drive box (6), the drive motor (16) is provided on the motor support (15), a gear box (17) is provided on one side of the drive motor (16), and the drive motor (16) is connected to an input end of the gear box (17).

5. The explosion-proof device for a smelting furnace according to claim 4, characterized in that: An exhaust pump (18) is provided on one side of the gear box (17), the output end of the gear box (17) is connected to the exhaust pump (18), the exhaust end of the exhaust pump (18) is connected to the secondary pressure relief pipe (7) through a connecting sleeve (19), and the air inlet end of the exhaust pump (18) is connected to the pressure relief pipe (22) through the connecting sleeve (19).

6. The explosion-proof device for a smelting furnace according to claim 5, characterized in that: A heat dissipation frame (23) is provided on the pressure relief pipe (22), and one end of the pressure relief pipe (22) away from the exhaust pump (18) is connected to a connecting pipe (20) via a pipe joint (21), and the other end of the connecting pipe (20) is connected to the first-level pressure relief pipe (8) via the connecting sleeve (19).

7. The explosion-proof device for a smelting furnace according to claim 6, characterized in that: A temperature sensor (24) is provided in the pressure relief box (1), and the temperature sensor (24) is connected to the control box (5) via a wire. The heat dissipation frame (23) consists of a first frame (25) and a second frame (26).

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