Anti-explosion pressure relief device of zinc smelting electric furnace

Abstract

The utility model relates to the technical field of non-ferrous metallurgy, and discloses an anti-explosion pressure relief device of a zinc smelting electric furnace, which comprises an electric furnace body, a guide pipe is fixedly connected in the electric furnace body, a sealing groove is fixedly connected on the outer surface of the guide pipe, an anti-explosion cap is inserted in the inner wall of the sealing groove, a filler is arranged in the sealing groove, and the anti-explosion cap is fixedly connected with the inner wall of the sealing groove. And the top of the explosion-proof cap is fixedly connected with a guide rod. The explosion-proof pressure relief device has the advantages that the explosion-proof cap rises upwards in the vertical direction, the first buffering ring makes contact with the second buffering ring, the impact force buffering effect is achieved, part of vibration is reduced through the damping ring, the explosion-proof cap is separated from the filler, the filler does not react with air, and the explosion-proof pressure relief task is completed; and when the guide rod and the sleeve are possibly deformed or even damaged, the steel chain connected with the explosion-proof cap plays a role in safety guarantee, so that the explosion-proof cap is prevented from being exploded to hurt people, the overall safety of the device is higher, and potential safety hazards such as burning explosion are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of nonferrous metal metallurgy, in particular to an explosion-proof pressure relief device for a zinc smelting electric furnace. Background Art

[0002] With the implementation of my country's dual-carbon economic policy and the increasing promotion of photovoltaic green energy, electric furnace zinc smelting, as an efficient and clean smelting process, has attracted more and more attention and favor. However, during the process of electric furnace zinc smelting, the high-temperature zinc vapor and CO gas in the furnace are a safety hazard of this process. Industry insiders have adopted different measures to suppress the occurrence of explosion incidents, but there are shortcomings such as insufficient sealing, poor safety performance, and complex equipment.

[0003] In the prior art, Chinese Patent Publication No. CN202023196734 discloses an explosion-proof pressure relief device for an electric furnace gas system, comprising a furnace body, an explosion-proof cover body is arranged on the top of the furnace body, a ring frame is sleeved on the top of the outer surface of the furnace body, a through hole is opened at the bottom of the outer surface of the explosion-proof cover body, a steel wire rope is fixedly connected to the top of the explosion-proof cover body, the number of the through holes is multiple, the inner diameters of the multiple through holes are the same, and a guide ring is sleeved on the surface of the steel wire rope. The utility model solves the problem that the existing electric furnace explosion-proof device is to open a hole on the furnace cover and cover the hole with an iron plate through the cooperation of the furnace body, the explosion-proof cover body, the ring frame, the through hole, the steel wire rope, the top plate, the fixed frame, the rotating shaft and the guide wheel. Once the electric furnace collapses or the pressure in the furnace increases, the explosion-proof cover will be blown away, which is easy to injure people. In addition, people need to go up to the furnace cover to cover the explosion-proof cover after the electric furnace is powered off, which is easy to cause collapse and injure people again, and also affects the furnace condition of the electric furnace.

[0004] However, in actual use, the utility model adopts the technology of liquid sealing with water, which is very dangerous for the electric furnace zinc smelting system, because when the electric furnace is smelting zinc, there is high-temperature zinc vapor in the furnace. Once the pressure in the furnace suddenly increases and the explosion-proof pressure relief device is opened, the zinc vapor will react with water to release flammable hydrogen, resulting in the risk of combustion and explosion. Therefore, improvement is needed. Utility Model Content

[0005] The utility model aims to provide an explosion-proof pressure relief device for a zinc smelting electric furnace, which has the effect of enhancing the overall safety of the device and avoiding safety hazards such as combustion and explosion.

[0006] The above technical purpose of the utility model is achieved through the following technical scheme: an explosion-proof pressure relief device for a zinc smelting electric furnace, comprising an electric furnace body, a conduit fixedly connected to the interior of the electric furnace body, a sealing groove fixedly connected to the outer surface of the conduit, an explosion-proof cap inserted into the inner wall of the sealing groove, a filler arranged inside the sealing groove, a guide rod fixedly connected to the top of the explosion-proof cap, a sleeve sleeved on the outer surface of the guide rod, a workshop beam fixedly connected to the top of the sleeve, a steel chain fixedly connected to the top of the explosion-proof cap, a shock-absorbing ring fixedly connected to the outer surface of the guide rod, a first buffer ring fixedly connected to the top of the shock-absorbing ring, and a second buffer ring fixedly connected to the bottom of the sleeve.

[0007] By adopting the above technical scheme, the workshop beam is connected and fixed to the top of the workshop, so as to fix the sleeve. When the staff uses it, the lower edge of the explosion-proof cap is inserted into the filler and touches the bottom surface of the sealing groove. When the air pressure in the electric furnace body increases or even explodes, the air pressure will lift the explosion-proof cap. Under the action of the guide rod and the sleeve, the diameter of the guide rod is 5mm to 30mm smaller than the inner diameter of the sleeve, and the explosion-proof cap rises upward in the vertical direction. The first buffer ring and the second buffer ring are in contact to buffer the impact force. The shock-absorbing ring reduces part of the vibration, and the explosion-proof cap is separated from the filler. The filler does not react with the air, and the explosion-proof pressure relief task is completed. When the explosion force in the furnace is too strong, the guide rod and the sleeve may be deformed or even damaged. At this time, the steel chain connected to the explosion-proof cap plays a safety role to prevent the explosion-proof cap from being blown away and injuring people, making the overall safety of the device stronger and avoiding safety hazards such as combustion and explosion.

[0008] The utility model is further configured as follows: the thickness of the filler is 70-200 mm, and the particle size of the filler is less than 0.3 mm.

[0009] By adopting the above technical solution, the filler can withstand a temperature greater than 300° C. and does not react with air.

[0010] The utility model is further configured as follows: the guide rod and the sleeve are made of steel, and the thickness of the explosion-proof cap and the sealing groove are both 5 to 12 mm.

[0011] By adopting the above technical solution, the steel guide rod and sleeve make their own strength not easily damaged.

[0012] The utility model is further configured as follows: an anti-break rod is fixedly connected inside the guide rod, and a reinforcement layer is fixedly connected to the outer surface of the guide rod.

[0013] By adopting the above technical solution, the anti-break rod reinforces the inside of the guide rod to prevent the guide rod from breaking, and the reinforcement layer further strengthens the protection.

[0014] The utility model is further configured as follows: a first explosion-proof material layer is fixedly connected to the outer surface of the reinforcement layer, and a second explosion-proof material layer is fixedly connected to the inner wall of the sleeve.

[0015] By adopting the above technical solution, the first explosion-proof material layer and the second explosion-proof material layer prevent the guide rod and the sleeve from being damaged by a large impact force, and the safety factor is higher.

[0016] The utility model is further configured as follows: a reinforcing rib is fixedly connected to the interior of the sleeve, and a protective layer is fixedly connected to the outer surface of the sleeve.

[0017] By adopting the above technical solution, the sleeve is reinforced with ribs and a protective layer to increase its service life.

[0018] The beneficial effects of the utility model are:

[0019] 1. The utility model, through the coordination arrangement among the electric furnace body, the conduit, the sealing groove, the explosion-proof cap, the filler, the guide rod, the sleeve, the workshop beam, the steel chain, the shock-absorbing ring, the first buffer ring and the second buffer ring, can make the workshop beam and the top of the workshop connected and fixed when the device is in use, so as to fix the sleeve. When the staff uses it, the lower edge of the explosion-proof cap is inserted into the filler and touches the bottom surface of the sealing groove. When the gas pressure in the electric furnace body increases or even explodes, the gas pressure will lift up the explosion-proof cap. Under the action of the guide rod and the sleeve, the diameter of the guide rod is It is 5mm to 30mm smaller than the inner diameter of the sleeve, and the explosion-proof cap rises upward in the vertical direction. The first buffer ring and the second buffer ring are in contact to buffer the impact force. The shock-absorbing ring reduces part of the vibration, and the explosion-proof cap is separated from the filler. The filler does not react with the air to complete the explosion-proof pressure relief task. When the explosion force in the furnace is too strong, the guide rod and the sleeve may be deformed or even damaged. At this time, the steel chain connected to the explosion-proof cap plays a safety guarantee role to prevent the explosion-proof cap from being blown away and injuring people, making the overall safety of the device stronger and avoiding safety hazards such as combustion and explosion.

[0020] 2. The utility model, through the coordination of the anti-break rod, the reinforcement layer, the first explosion-proof material layer, the second explosion-proof material layer, the reinforcing ribs and the protective layer, can make the filler of the device able to withstand a temperature greater than 300°C and not react with the air when in use. The steel guide rod and the sleeve make their own strength not easily damaged. The anti-break rod reinforces the inside of the guide rod to prevent the guide rod from breaking. The reinforcement layer further reinforces the protection. The first explosion-proof material layer and the second explosion-proof material layer prevent large impact forces from easily causing damage to the guide rod and the sleeve. The safety factor is higher. The reinforcing ribs and the protective layer reinforce the sleeve to increase the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the explosion-proof cap structure of the utility model;

[0024] Figure 3 This is a schematic diagram of the workshop beam structure of the utility model;

[0025] Figure 4 This is a schematic diagram of the guide rod structure of the utility model.

[0026] In the figure, 1. electric furnace body; 2. conduit; 3. sealing groove; 4. explosion-proof cap; 5. filler; 6. guide rod; 7. sleeve; 8. workshop beam; 9. steel chain; 10. shock-absorbing ring; 11. first buffer ring; 12. second buffer ring; 13. anti-break rod; 14. reinforcement layer; 15. first explosion-proof material layer; 16. second explosion-proof material layer; 17. reinforcing ribs; 18. protective layer. DETAILED DESCRIPTION

[0027] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Reference Figure 1-4, an explosion-proof pressure relief device for a zinc smelting electric furnace, comprising an electric furnace body 1, a conduit 2 is fixedly connected inside the electric furnace body 1, a sealing groove 3 is fixedly connected to the outer surface of the conduit 2, an explosion-proof cap 4 is plugged into the inner wall of the sealing groove 3, a filler 5 is arranged inside the sealing groove 3, a guide rod 6 is fixedly connected to the top of the explosion-proof cap 4, a sleeve 7 is sleeved on the outer surface of the guide rod 6, a workshop crossbeam 8 is fixedly connected to the top of the sleeve 7, a steel chain 9 is fixedly connected to the top of the explosion-proof cap 4, a shock-absorbing ring 10 is fixedly connected to the outer surface of the guide rod 6, a first buffer ring 11 is fixedly connected to the top of the shock-absorbing ring 10, a second buffer ring 12 is fixedly connected to the bottom of the sleeve 7, and a workshop crossbeam 8 is fixedly connected to the top of the steel chain 9. The beam 8 is connected and fixed to the top of the workshop, thereby fixing the sleeve 7. When the staff uses it, the lower edge of the explosion-proof cap 4 is inserted into the filler 5 and touches the inner bottom surface of the sealing groove 3. When the air pressure in the electric furnace body 1 increases or even explodes, the air pressure lifts up the explosion-proof cap 4. Under the action of the guide rod 6 and the sleeve 7, the diameter of the guide rod 6 is 5mm to 30mm smaller than the inner diameter of the sleeve 7. The explosion-proof cap 4 rises upward in the vertical direction, and the first buffer ring 11 and the second buffer ring 12 are in contact to buffer the impact. The shock-absorbing ring 10 reduces part of the vibration, and the explosion-proof cap 4 is separated from the filler 5. The filler 5 does not react with the air, completing the explosion-proof pressure relief task. When the explosion force in the furnace occurs When it is too strong, it may cause the guide rod 6 and the sleeve 7 to deform or even be damaged. At this time, the steel chain 9 connected to the explosion-proof cap 4 plays a safety role to prevent the explosion-proof cap 4 from being blown away and injuring people, making the overall safety of the device stronger and avoiding safety hazards such as combustion and explosion. The thickness of the filler 5 is 70-200mm, the particle size of the filler 5 is less than 0.3mm, the filler 5 can withstand a temperature greater than 300°C and does not react with air. The material of the guide rod 6 and the sleeve 7 is steel, and the thickness of the explosion-proof cap 4 and the sealing groove 3 is 5-12mm. The steel guide rod 6 and the sleeve 7 make their own strength not easily damaged. The inside of the guide rod 6 is fixedly connected with an anti-breaking rod 13, and the guide The outer surface of the rod 6 is fixedly connected with a reinforcement layer 14, and the anti-break rod 13 reinforces the inside of the guide rod 6 to prevent the guide rod 6 from breaking. The reinforcement layer 14 further reinforces the protection. The outer surface of the reinforcement layer 14 is fixedly connected with a first explosion-proof material layer 15, and the inner wall of the sleeve 7 is fixedly connected with a second explosion-proof material layer 16. The first explosion-proof material layer 15 and the second explosion-proof material layer 16 prevent large impact forces from easily causing damage to the guide rod 6 and the sleeve 7, and the safety factor is higher. The inside of the sleeve 7 is fixedly connected with a reinforcing rib 17, and the outer surface of the sleeve 7 is fixedly connected with a protective layer 18. The reinforcing rib 17 and the protective layer 18 reinforce the sleeve 7 to increase its service life.

[0029] In the utility model, through the coordinated arrangement among the electric furnace body 1, the conduit 2, the sealing groove 3, the explosion-proof cap 4, the filler 5, the guide rod 6, the sleeve 7, the workshop beam 8, the steel chain 9, the shock-absorbing ring 10, the first buffer ring 11 and the second buffer ring 12, the device can be used, the workshop beam 8 is connected and fixed to the top of the workshop, so as to fix the sleeve 7, when the staff uses it, the lower edge of the explosion-proof cap 4 is inserted into the filler 5 and touches the inner bottom surface of the sealing groove 3, when the air pressure in the electric furnace body 1 increases or even explodes, the air pressure lifts up the explosion-proof cap 4, under the action of the guide rod 6 and the sleeve 7, the diameter of the guide rod 6 is 5mm to 30mm smaller than the inner diameter of the sleeve 7, the explosion-proof cap 4 rises upward in the vertical direction, the first buffer ring 11 and the second buffer ring 12 are in contact, play the role of buffering the impact, the shock-absorbing ring 10 reduces a part of the vibration, the explosion-proof cap 4 is separated from the filler 5, the filler 5 does not react with the air, completes the explosion-proof pressure relief task, when the explosion force in the furnace When it is too strong, it may cause the guide rod 6 and the sleeve 7 to be deformed or even damaged. At this time, the steel chain 9 connected to the explosion-proof cap 4 plays a safety guarantee role, preventing the explosion-proof cap 4 from being blown away and injuring people, making the overall safety of the device stronger, and avoiding safety hazards such as combustion and explosion. Through the coordinated arrangement of the anti-breaking rod 13, the reinforcement layer 14, the first explosion-proof material layer 15, the second explosion-proof material layer 16, the reinforcing ribs 17 and the protective layer 18, the filler 5 can withstand a temperature greater than 300°C when the device is in use and does not react with the air. The steel guide rod 6 and the sleeve 7 make their own strength not easily damaged. The anti-breaking rod 13 reinforces the inside of the guide rod 6 to prevent the guide rod 6 from breaking. The reinforcement layer 14 further reinforces the protection. The first explosion-proof material layer 15 and the second explosion-proof material layer 16 prevent large impact forces from easily causing damage to the guide rod 6 and the sleeve 7. The safety factor is higher. The reinforcing ribs 17 and the protective layer 18 reinforce the sleeve 7 to increase the service life.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof pressure relief device for a zinc smelting electric furnace, comprising an electric furnace body (1), characterized in that: The interior of the electric furnace body (1) is fixedly connected with a conduit (2), the outer surface of the conduit (2) is fixedly connected with a sealing groove (3), the inner wall of the sealing groove (3) is plugged with an explosion-proof cap (4), the interior of the sealing groove (3) is provided with a filler (5), the top of the explosion-proof cap (4) is fixedly connected with a guide rod (6), the outer surface of the guide rod (6) is sleeved with a sleeve (7), the top of the sleeve (7) is fixedly connected with a workshop beam (8), the top of the explosion-proof cap (4) is fixedly connected with a steel chain (9), the outer surface of the guide rod (6) is fixedly connected with a shock-absorbing ring (10), the top of the shock-absorbing ring (10) is fixedly connected with a first buffer ring (11), and the bottom of the sleeve (7) is fixedly connected with a second buffer ring (12).

2. The explosion-proof pressure relief device for a zinc smelting electric furnace according to claim 1, characterized in that: The thickness of the filler (5) is 70 to 200 mm, and the particle size of the filler (5) is less than 0.3 mm.

3. The explosion-proof pressure relief device for a zinc smelting electric furnace according to claim 1, characterized in that: The guide rod (6) and the sleeve (7) are made of steel, and the explosion-proof cap (4) and the sealing groove (3) are both 5 to 12 mm thick.

4. The explosion-proof pressure relief device for a zinc smelting electric furnace according to claim 1, characterized in that: An anti-break rod (13) is fixedly connected inside the guide rod (6), and a reinforcement layer (14) is fixedly connected to the outer surface of the guide rod (6).

5. The explosion-proof pressure relief device for a zinc smelting electric furnace according to claim 4, characterized in that: The outer surface of the reinforcement layer (14) is fixedly connected to a first explosion-proof material layer (15), and the inner wall of the sleeve (7) is fixedly connected to a second explosion-proof material layer (16).

6. The explosion-proof pressure relief device for a zinc smelting electric furnace according to claim 1, characterized in that: A reinforcing rib (17) is fixedly connected to the interior of the sleeve (7), and a protective layer (18) is fixedly connected to the outer surface of the sleeve (7).

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