Tuyere large sleeve sealing leakage detection device

Abstract

The utility model discloses a tuyere large sleeve sealing leakage detection device, which comprises a sealing cover and a gas alarm, the sealing cover comprises an annular main body, the same side surface of the annular main body axially extends outwards to form an inner ring and an outer ring, and a groove chamber is formed among the annular main body, the inner ring and the outer ring; the sealing cover is installed outside the furnace shell, the inner ring is fixed to the tuyere large sleeve in a sealed mode, the outer ring is fixed to the outer wall of the furnace shell in a sealed mode, a leak hunting pipe is arranged outside the sealing cover, a valve is installed on the leak hunting pipe, and an outlet of the leak hunting pipe right faces the gas alarm. According to the tuyere large sleeve sealing leakage detection device, the potential safety hazard of gas leakage can be eliminated, and the cracking condition of the connecting part of the tuyere large sleeve and the furnace shell can be detected, so that a worker can master the condition of the connecting part of the tuyere large sleeve and the furnace shell in time, and emergency treatment is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of tuyere for iron-making blast furnaces, in particular to a large-sleeve sealing and leak detection device for tuyere. Background Art

[0002] The blast furnace's air supply system consists of a blowpipe, large sleeve, medium sleeve, and small sleeve. The large sleeve is made of cast iron and fits over the medium and small sleeves, secured to the furnace shell with bolts. During the middle and later stages of a blast furnace's life, lead and zinc accumulate within the furnace, and the furnace body rises due to temperature fluctuations. This rise in the furnace body and the accumulation of lead and zinc within the furnace can easily cause cracking at the connection between the large sleeve and the shell, leading to gas leaks and posing a significant safety hazard. Utility Model Content

[0003] The utility model aims to provide a large air vent sleeve sealing leakage detection device.

[0004] The technical solution for achieving the purpose of the utility model is: a large tuyere sleeve sealing and leak detection device, wherein the large tuyere sleeve is coaxially installed in the tuyere installation hole of the furnace shell, and the tuyere is formed in the large tuyere sleeve;

[0005] The large air vent sealing and leak detection device includes a sealing cover and a gas alarm. The sealing cover includes an annular body, an inner ring and an outer ring extending axially outward from the same side surface of the annular body, the annular body, the inner ring and the outer ring are coaxial, the inner diameter of the annular body is not less than the inner diameter of the air vent, the diameter of the outer ring is greater than the diameter of the inner ring, and a groove chamber is formed between the annular body, the inner ring and the outer ring;

[0006] The sealing cover is installed outside the furnace shell, the annular body is coaxially arranged with the tuyere, the slot chamber is located on the side of the annular body close to the furnace shell, the inner ring is sealed and fixed to the tuyere sleeve, and the outer ring is sealed and fixed to the outer wall of the furnace shell. A leak detection tube is provided on the outside of the sealing cover, the leak detection tube is connected with the slot chamber, and a valve is installed on the leak detection tube. The gas alarm is located outside the furnace shell, and the outlet of the leak detection tube is facing the gas alarm.

[0007] Furthermore, the valve is a ball valve.

[0008] Furthermore, the valve is electrically connected to a control unit, which facilitates the control of the valve to automatically open at a certain time and detect whether there is leakage, thereby facilitating automated detection and saving manpower.

[0009] The utility model discloses a device for detecting leakage of sealing of large tuyere sleeve, by arranging the sealing cover of annular structure outside the connection part of large tuyere sleeve and the furnace shell, so that the sealing cover of annular structure can seal the connection part of large tuyere sleeve and the furnace shell without affecting the operation of tuyere, so that even if the connection part of large tuyere sleeve and the furnace shell is cracked, gas leakage will not be caused under the sealing of the sealing cover, thereby effectively eliminating the potential safety hazard of gas leakage and greatly improving production safety.

[0010] In addition, the utility model of the tuyere sleeve sealing leak detection device is provided with the leak detection tube installed with the valve on the sealing cover, and the gas alarm is provided outside the furnace shell so as to be opposite to the outlet of the leak detection tube. After the valve is opened, the gas alarm can detect whether there is gas in the slot chamber of the sealing cover, and further detect whether the connection between the tuyere sleeve and the furnace shell is cracked or leaking.

[0011] The utility model discloses a device for detecting leakage of sealing of large air vent sleeve, can not only eliminate the hidden danger of gas leakage, but also can detect the cracking condition of the connection part between the large air vent sleeve and the furnace shell, so that the staff can timely grasp the condition of the connection part between the large air vent sleeve and the furnace shell, especially after the cracking and gas leakage at the connection part between the large air vent sleeve and the furnace shell is detected, it is convenient to carry out emergency treatment in time, maintain the double protection of the furnace shell and the sealing cover, and avoid the risk of the sealing cover, the last line of defense, being broken through under the single sealing of the sealing cover for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of the utility model of the large-sleeve sealing leak detection device for the air outlet;

[0013] Figure 2 This is a structural diagram of the sealing cover and the air outlet of the utility model of the air outlet large sleeve sealing leakage detection device;

[0014] Figure 3 The utility model is a schematic diagram of the control structure of the valve of the large-sleeve sealing leakage detection device for the air outlet. DETAILED DESCRIPTION

[0015] The following is a detailed description of the preferred embodiment of the utility model of the large air vent sealing leak detection device with reference to the accompanying drawings:

[0016] like Figure 1 and Figure 2 As shown, a tuyere sleeve sealing and leak detection device, the tuyere sleeve 101 is coaxially installed in the tuyere installation hole 1021 of the furnace shell 102, and the tuyere 103 is formed in the tuyere sleeve 101;

[0017] The large air vent sealing and leak detection device includes a sealing cover 1 and a gas alarm 2. The sealing cover 1 includes an annular body 11. An inner ring 12 and an outer ring 13 extend axially outward from the same side surface of the annular body 11. The annular body 11, the inner ring 12, and the outer ring 13 are coaxial. The inner diameter D1 of the annular body 11 is not less than the inner diameter R of the air vent 103. The diameter D3 of the outer ring 13 is greater than the diameter D2 of the inner ring 12. A groove chamber 10 is formed between the annular body 11, the inner ring 12, and the outer ring 13.

[0018] The sealing cover 1 is installed outside the furnace shell 102, the annular body 11 is coaxially arranged with the air port 103, the tank chamber 10 is located on the side of the annular body 11 close to the furnace shell 102, the inner ring 12 is sealed and fixed to the air port sleeve 101, and the outer ring 13 is sealed and fixed to the outer wall of the furnace shell 102. A leak detection tube 3 is provided on the outside of the sealing cover 1, the leak detection tube 3 is connected with the tank chamber 10, and a valve 30 is installed on the leak detection tube 3. The gas alarm 2 is located outside the furnace shell 102, and the outlet 31 of the leak detection tube 3 is facing the gas alarm 2.

[0019] In the utility model, the tuyere sleeve sealing and leak detection device is configured such that after the inner ring 12 is sealed and fixed to the tuyere sleeve 101 and the outer ring 13 is sealed and fixed to the outer wall of the furnace shell 102, the sealing cover 1 covers the connection portion between the tuyere sleeve 101 and the furnace shell 102. When the valve 30 is closed, the sealing cover 1 seals the connection portion between the tuyere sleeve 101 and the furnace shell 102 to prevent the connection portion between the tuyere sleeve 101 and the furnace shell 102 from cracking, thereby preventing gas leakage.

[0020] The utility model provides a device for detecting leakage of the sealing of the tuyere sleeve. When checking whether the connection between the tuyere sleeve 101 and the furnace shell 102 is cracked or leaking, the valve 30 is opened. If gas escapes from the leak detection tube 3 and the gas alarm 2 sounds an alarm, it indicates that there is leakage at the connection between the tuyere sleeve 101 and the furnace shell 102. If no gas escapes from the leak detection tube 3 and the gas alarm 2 does not sound an alarm, it indicates that there is no leakage at the connection between the tuyere sleeve 101 and the furnace shell 102.

[0021] The utility model discloses a device for detecting leakage of sealing of large tuyere sleeve, by arranging the sealing cover 1 of an annular structure outside the connection part between the large tuyere sleeve 101 and the furnace shell 102, so that the sealing cover 1 of the annular structure can seal the connection part between the large tuyere sleeve 101 and the furnace shell 102 without affecting the operation of the tuyere, so that even if the connection part between the large tuyere sleeve 101 and the furnace shell 102 is cracked, it will not cause gas leakage under the sealing of the sealing cover 1, which effectively eliminates the safety hazard of gas leakage and greatly improves production safety.

[0022] In addition, the utility model of the tuyere sleeve sealing leak detection device is provided with the leak detection tube 3 installed with the valve 30 on the sealing cover 1, and the gas alarm 2 is provided outside the furnace shell 102 to be opposite to the outlet 31 of the leak detection tube 3. After the valve 30 is opened, the gas alarm 2 can detect whether there is gas in the tank chamber 10 of the sealing cover 1, and further detect whether the connection between the tuyere sleeve 101 and the furnace shell 102 is cracked or leaking.

[0023] The utility model discloses a device for detecting leakage of sealing of large tuyere sleeve, which can not only eliminate the hidden danger of gas leakage, but also detect the cracking condition of the connection part between the large tuyere sleeve 101 and the furnace shell 102, so that the staff can timely grasp the condition of the connection part between the large tuyere sleeve 101 and the furnace shell 102, especially after the cracking and gas leakage at the connection part between the large tuyere sleeve 101 and the furnace shell 102 are detected, it is convenient to carry out emergency treatment in time, maintain the double protection of the furnace shell 102 and the sealing cover 1, and avoid the risk of the sealing cover 1, the last line of defense, being broken through, under the single sealing of the sealing cover 1 for a long time.

[0024] In the utility model of the large-sleeve sealing leak detection device for air outlet, the valve 30 is a ball valve.

[0025] The utility model of the large air vent sealing leak detection device is as follows: Figure 3 As shown, the valve 30 is electrically connected to a control unit 4. The setting of the control unit 4 facilitates the control of the valve 30 to automatically open at a certain time to detect whether there is air leakage, thereby facilitating automatic detection and saving labor.

[0026] In the utility model of the large air vent sealing leak detection device, the gas alarm 2, the valve 30 and the control unit 4 are all existing structures, and the utility model will not elaborate on this.

[0027] For ordinary technicians in the technical field to which the utility model belongs, the utility model can make several simple deductions or substitutions without departing from the concept of the utility model, which should be regarded as falling within the scope of protection of the utility model.

Claims

1. A tuyere sleeve sealing leak detection device, wherein the tuyere sleeve is coaxially installed in the tuyere mounting hole of the furnace shell, and the tuyere is formed in the tuyere sleeve; characterized in that: The vent is secured to the gas outlet via a venting mechanism, and the vent is secured to the gas outlet via a venting mechanism. The vent is secured to the gas outlet via a venting mechanism. The vent is secured to the gas outlet via a venting mechanism.

2. The large air vent seal leak detection device according to claim 1, characterized in that: The valve is a ball valve.

3. The large air vent seal leak detection device according to claim 1, characterized in that: The valve is electrically connected to a control unit.

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