Blast furnace tuyere off-line leak detection device

Abstract

The utility model belongs to the technical field of blast furnace detection equipment, and particularly discloses a blast furnace tuyere offline leak detection device which comprises a water inlet pipe, the water inlet pipe is connected with a water inlet of a tuyere body through a pipeline, a water outlet of the tuyere body is sequentially connected with a pressure gauge and a flow meter through pipelines, and a drainage hopper is arranged at the tail end of the pipeline; after the tuyere is assembled, the device is used for air tightness pressing and flow monitoring tests, it is ensured that no water leakage phenomenon happens to the tuyere water pipe screw thread, and the phenomena of sand holes and cracks existing in the tuyere body can be found and treated in time. The flow meter is used for monitoring the flow of the tuyere sleeve, abnormal flow can be found and processed in time, the phenomenon of burning loss after the tuyere is on line is avoided, the tuyere is not damaged, and stable production of the blast furnace is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of blast furnace detection equipment, and in particular relates to an offline leakage detection device for a blast furnace tuyere. Background Art

[0002] The online detection of the blast furnace tuyere flowmeter uses an elbow flowmeter for automatic detection. It is found that there is uneven cooling water in the online tuyere, and the flow rate of some tuyere does not meet the use standard of tuyere small set water volume ≥35m³ / h. At present, the inspection of blast furnace tuyere small set spare parts can only detect the pressure and confirm the welding quality and piping quality of the tuyere spare parts, but cannot detect the flow of the tuyere small set spare parts. In order to strengthen the acceptance management of tuyere small set spare parts, a device with both "pressure and flow" detection functions is installed on the tuyere platform to inspect the tuyere small set spare parts with relatively low inlet and outlet flow rates. Spare parts that do not meet the water volume standards are required to be returned to the factory for processing to ensure that the online tuyere cooling water volume and pressure meet the standards. The device is simple to make and easy to operate. It is a fast, efficient and practical invention device. Utility Model Content

[0003] The utility model aims to provide an offline leak detection device for blast furnace tuyere, so as to avoid water leakage from the water pipe thread of the tuyere sleeve and burning of the tuyere sleeve after it is put online. The utility model can detect the tuyere flow rate, and can find the tuyere spare parts that do not meet the flow rate standard in advance, so as to avoid the damage of the tuyere due to the unqualified spare parts. The utility model is a fast and efficient detection device.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is:

[0005] A blast furnace tuyere offline leak detection device comprises a water inlet pipe, wherein the water inlet pipe is connected to a water inlet of a tuyere body through a pipeline, the water outlet of the tuyere body is sequentially connected to a pressure gauge and a flow meter through a pipeline, and a drainage bucket is provided at the end of the pipeline.

[0006] Preferably, metal hoses are provided on the water inlet and outlet pipes of the tuyere body via quick connectors.

[0007] Preferably, a valve 2 and a valve 1 are sequentially provided on the water inlet pipe and the water inlet connecting pipe of the tuyere body.

[0008] Preferably, a valve three is provided on the pipeline between the pressure gauge and the flow meter.

[0009] The beneficial effects of the utility model are:

[0010] The utility model uses this device to perform air tightness pressure test and flow monitoring test after the tuyere is assembled, ensuring that there is no water leakage in the tuyere water pipe thread, and that sand holes and cracks in the tuyere body can be discovered and handled in time. A flow meter is used to monitor the flow of the tuyere sleeve, and abnormal flow can be discovered and handled in time, avoiding the occurrence of burning after the tuyere is put into production. The tuyere is not damaged, ensuring the stable production of the blast furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the installation of the blast furnace tuyere offline leak detection device;

[0012] Among them: 1. Air outlet body, 2. Quick connector, 3. Metal hose, 4. Valve one, 5. Valve two, 6. Pressure gauge, 7. Valve three, 8. Flow meter, 9. Drain bucket, 10. Water inlet pipe. DETAILED DESCRIPTION

[0013] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0014] like Figure 1 The blast furnace tuyere offline leak detection device shown comprises a water inlet pipe 10 connected to a water source, the water inlet pipe 10 is connected to the water inlet of the tuyere body 1 through a pipeline, the water outlet of the tuyere body 1 is sequentially connected to a pressure gauge 6 and a flow meter 8 through a pipeline, which are used to detect the flow of water in the eyes, and a drainage bucket 9 is provided at the end of the pipeline. The water inlet and outlet pipelines of the tuyere body 1 are provided with a metal hose 3 through a quick connector 2, which is convenient for replacing different tuyere bodies 1 for detection. The water inlet connection pipeline between the water inlet pipe 10 and the tuyere body 1 is provided with a valve 2 5 and a valve 1 4 in sequence. When replacing the detection part of the tuyere body 1, the valve 2 5 is closed to cut off the water source for replacement, which is convenient for the operator. The pipeline between the pressure gauge 6 and the flow meter 8 is provided with a valve 3 7. When the pressure gauge 6 detects the pressure, the valve 1 4 and the valve 3 7 are closed for detection.

[0015] After the tuyere is assembled, use this device to perform air tightness pressure testing and flow monitoring tests. First, perform air tightness testing, close valve three 7, and pass the gas into the tuyere body 1 along the water inlet pipe 10. Then use the detection value of the pressure gauge 6 to display the air tightness of the tuyere body 1 and the detection equipment. After the detection, perform flow detection, pass the water source into the tuyere body 1 through the water inlet pipe 10 using a pipeline for detection, use the flow meter 8 for numerical detection, and finally the water source flows into the drainage bucket 9. Through the leak detection device, the blast furnace tuyere is first pressure tested and the flow rate tested, and then observe whether there is any water leakage in various parts of the tuyere. It is used only after passing the pressure test to avoid water leakage during the use of the blast furnace tuyere, avoid the frequency of blast furnace shutdown caused by the burning of the tuyere, improve production efficiency, and reduce manpower and material costs.

Claims

1. A blast furnace tuyere offline leak detection device, comprising a water inlet pipe, characterized in that: The water inlet pipe (10) is connected to the water inlet of the tuyere body (1) through a pipeline, and the water outlet of the tuyere body (1) is connected to a pressure gauge (6) and a flow meter (8) in sequence through a pipeline, and a drainage bucket (9) is provided at the end of the pipeline.

2. A blast furnace tuyere offline leak detection device according to claim 1, characterized in that: Metal hoses (3) are provided on the water inlet and water outlet pipes of the tuyere body (1) via quick connectors (2).

3. The blast furnace tuyere offline leak detection device according to claim 1, characterized in that: The water inlet pipe (10) and the water inlet connection pipe of the tuyere body (1) are provided with valve 2 (5) and valve 1 (4) in sequence.

4. The blast furnace tuyere offline leak detection device according to claim 1, characterized in that: A valve three (7) is provided on the pipeline between the pressure gauge (6) and the flow meter (8).

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