A converter primary dust removal system spray gun testing device

Abstract

The utility model discloses a converter primary dust removal system spray gun testing arrangement, for testing whether converter primary dust removal system spray gun is qualified, include: the barrel, the upper part cylinder wall hole, water inlet pipe, one end passes through the hole and extends into the barrel inner chamber, and the one end on water inlet pipe upper location cylinder outside is connected water supply mechanism, and the one end in the barrel inner chamber sets up spray gun mounting joint, the spray gun of waiting for measuring, is connected on spray gun mounting joint, and the direction of injection coincides with the central axis in the barrel, the horizontal line A and horizontal line B are set up on the inner wall of the barrel, and the area between two horizontal lines is set up as the qualified interval, and the observation window is equipped with above the qualified interval on the barrel, and the qualified interval can be observed, and the illumination is set up inside the barrel cavity, the utility model discloses simple structure, and the testing method is accurate and intuitive, has solved the converter primary dust removal system spray gun detection difficult after using or maintaining of existing, possibly causes the production hidden danger, cannot accurately judge whether should scrap the problem.

Description

Technical Field

[0001] This utility model relates to the field of converter primary dust removal system technology, and in particular to a spray gun testing device for converter primary dust removal system. Background Technology

[0002] Primary dust removal in converters refers to the process of cooling and purifying the high-temperature flue gas generated during converter blowing through the flue. Currently, most top-blown converters use an unburned, wet purification and recovery system, i.e., the OG system. This system mainly consists of a vaporization flue, a primary venturi tube, a gravity dehydrator, a secondary venturi tube, a 90° elbow dehydrator, a wet cyclone dehydrator (compound baffle dehydrator), and blowers. This system features pipelined equipment, low system resistance, no dead zones, minimal gas stagnation, and safe production. Furthermore, the opening of the secondary venturi tube throat is controlled by a slight differential pressure at the furnace mouth to adapt to changes in flue gas volume and the switching between recovery and venting during different blowing stages, achieving automatic control, high flue gas purification efficiency, and comprehensive safety devices. The spray guns in the primary dust removal system play a crucial role in the converter's related processes.

[0003] In actual factory production, the spray guns of the converter primary dust removal system need to be replaced during the annual overhaul. However, after the spray guns are taken offline, it is impossible to determine whether they can meet the usage requirements when they are put back online, which poses a hidden danger to the spraying effect of the converter primary dust removal system. Some spray guns are scrapped based on their appearance alone, resulting in a waste of spare parts.

[0004] Therefore, there is an urgent need for a converter primary dust removal system spray gun testing device that can conveniently, quickly, and accurately test whether these used converter primary dust removal system spray guns meet the usage requirements, solve potential production hazards, and save costs. Utility Model Content

[0005] The purpose of this utility model is to provide a test device for the spray gun of the primary dust removal system of a converter, which solves the problem that it is difficult to test the spray gun of the primary dust removal system of a converter after use or maintenance, which may cause production hazards and make it impossible to accurately determine whether it should be scrapped.

[0006] To address the problems in the existing technology, this utility model adopts the following technical solution:

[0007] A test device for spray guns in a converter primary dust removal system, used to test whether the spray guns in the converter primary dust removal system are qualified, comprising:

[0008] The cylinder has an opening in its upper wall.

[0009] A water inlet pipe extends into the inner cavity of the cylinder through the opening at one end. The end of the water inlet pipe located outside the cylinder is connected to a water supply mechanism, and the end located inside the cylinder is provided with a spray gun mounting connector.

[0010] The spray gun to be tested is connected to the spray gun mounting connector, with the spray direction facing the inside of the cylinder and the center of the spray gun to be tested coinciding with the central axis of the cylinder.

[0011] Horizontal lines A and B are provided on the inner wall of the cylinder, and the area between the two horizontal lines is designated as the qualified range.

[0012] An observation window is provided on the cylinder above the qualified area, allowing observation of the qualified area. Illumination is provided inside the cavity of the cylinder.

[0013] Furthermore, the vertical distance between the midpoint of the two horizontal markings and the height from the bottom of the cylinder is... The following relationship exists between the dimensions of the cylinder and the cylinder body:

[0014] ,in, The diameter of the inner cavity of the cylinder. The height is the distance from the lower surface of the spray gun to the bottom of the cylinder. The initial spray angle of the spray gun under test;

[0015] Height from horizontal mark A to the bottom of the cylinder mm;

[0016] Height from horizontal mark B to the bottom of the cylinder mm.

[0017] Furthermore, the diameter of the cylinder is not less than 3000mm and the height of the cylinder is not less than 2000mm.

[0018] Furthermore, an inlet valve is installed on the inlet pipe.

[0019] Furthermore, a flow meter is installed on the pipe from the inlet valve to the outlet.

[0020] Furthermore, the inner diameter of the water inlet pipe is not less than 100mm.

[0021] Furthermore, it also includes a sewage pipe, which is installed at the bottom of the cylinder and connected to the sludge chute, and a drain valve is installed on the sewage pipe.

[0022] Furthermore, the initial spray angle of the spray gun under test ≥120°.

[0023] Furthermore, the inlet flow rate of the inlet pipe is 70-80 m³ / h.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] First, the device of this utility model has a simple structure and an accurate and intuitive testing method. Since this utility model is used to test industrial high-pressure spray guns and the cylinder diameter is limited, the influence of gravity can be ignored. The spray gun is located on the central axis of the cylinder. When spraying at a certain angle, the sprayed water flow can be regarded as a straight line. It is only necessary to observe the engraved line on the inner wall of the cylinder to determine whether the spray gun is blocked and whether it is qualified.

[0026] Secondly, the present invention features an observation window on the cylinder and lighting inside the cylinder, making it easier to observe the test results in real time.

[0027] Third, the water inlet pipe of this utility model is equipped with an inlet valve and a flow meter, which can control the water inlet flow. When the spray gun is working, the water inlet flow is 70-80m³ / h. Controlling the water inlet flow makes the test results closer to the actual working conditions. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the structure of this utility model;

[0029] Figure 2 This is a diagram illustrating the present invention.

[0030] The components include: 1. cylinder, 2. water inlet pipe, 3. sewage pipe, 4. spray gun to be tested, 5. qualified range, 5-1 horizontal scale line A, 5-2 horizontal scale line B, 6. water inlet valve, 7. flow meter, 8. drain valve, and 9. observation window. Detailed Implementation

[0031] like Figure 1 As shown, a test device for a primary dust removal system spray gun in a converter is used to test whether the spray gun of the primary dust removal system in a converter is qualified. It includes: a cylinder 1 with dimensions of ∅3500*2600mm and an opening in the upper wall of the cylinder 1.

[0032] Water inlet pipe 2, one end of which extends into the inner cavity of the cylinder through the opening, the end of the water inlet pipe located outside the cylinder is connected to the water supply mechanism, and the end located inside the cylinder is provided with a spray gun mounting connector.

[0033] The test spray gun 4 is connected to the spray gun mounting connector and is located on the central axis of the cylinder 1. The spray direction of the test spray gun 4 is towards the inside of the cylinder 1 and coincides with the central axis of the cylinder 1. The initial spray angle is... 120°C water;

[0034] The sewage pipe 3 is located at the bottom of the cylinder 1 and is connected to the sewage chute.

[0035] inner diameter of the cylinder =3500mm, height from the lower surface of the spray gun to the bottom of the cylinder =2400mm, initial spray angle of the spray gun under test 120°

[0036] The following relationship exists between the height h from the midpoint of the vertical distance between the two horizontal graduations to the bottom of the cylinder and the dimension of cylinder 1: ,get ≈1389.6mm.

[0037] Height on the inner wall of the cylinder 1 A horizontal graduation line is set 200mm vertically, and the horizontal graduation line A5-1 extends to the bottom of the cylinder. ≈1589.6mm, height from horizontal graduation line B5-2 to the bottom of the cylinder ≈1189.6mm, the area between the two markings is marked as the qualified range 5.

[0038] The observation window 9 is located above the qualified zone 5 and is used to observe the water spraying on the qualified zone 5. The cavity of the cylinder 1 is equipped with lighting.

[0039] The inlet pipe 2 is equipped with an inlet valve 6, and a flow meter 7 is installed on the pipe from the inlet valve 8 to the outlet. The inlet pipe 2 has a size of ∅108 and an inlet flow rate of 80 m³ / h.

[0040] The sewage pipe 3 is equipped with a drainage valve 8.

[0041] The testing method of this invention is as follows:

[0042] Turn on the internal lighting of cylinder 1, then open the water inlet valve 6 and adjust the opening of the water inlet valve 7. When the flow rate reaches the design standard of 80m³ / h, observe the umbrella-shaped water output of the spray gun 4 through the observation window 9. The spray angle is required to be 120°, and the sprayed umbrella-shaped water should fall within the qualified range 5 on the inner wall of cylinder 1. If it meets the standard, it can meet the requirements for online use.

[0043] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A test device for spray guns in a converter primary dust removal system, used to test whether the spray guns in the converter primary dust removal system are qualified, comprising: The cylinder (1) has an opening in its upper wall; Water inlet pipe (2), one end of which extends into the inner cavity of the cylinder through the opening, the end of the water inlet pipe located outside the cylinder is connected to the water supply mechanism, and the end located inside the cylinder is provided with a spray gun mounting connector. The spray gun (4) to be tested is connected to the spray gun mounting connector, the spray direction is towards the inside of the cylinder and the center of the spray gun (4) to be tested coincides with the central axis of the cylinder (1); The feature is that a horizontal engraving line A (5-1) and a horizontal engraving line B (5-2) are provided on the inner wall of the cylinder (1), and the area between the two horizontal engraving lines is set as the qualified interval (5). An observation window (9) is provided on the cylinder (1) above the qualified interval (5) so that the qualified interval (5) can be observed. Lighting is provided inside the cavity of the cylinder (1).

2. The test device for the spray gun of the primary dust removal system of a converter according to claim 1, characterized in that, The height from the midpoint of the vertical distance between the two horizontal markings to the bottom of the cylinder The following relationship exists between the dimensions of the cylinder (1) and the cylinder body (1): ,in, The inner diameter of the cylinder (1) is... The height from the lower surface of the spray gun (4) to the bottom of the cylinder (1) is the distance between the spray gun (4) and the bottom of the cylinder. The initial spray angle of the spray gun (4) to be tested; Height from horizontal graduation line A (5-1) to the bottom of the cylinder mm; The height from horizontal graduation line B (5-2) to the bottom of the cylinder mm.

3. The test device for the spray gun of the primary dust removal system of a converter according to claim 1, characterized in that, The diameter of the cylinder (1) is not less than 3000mm and the height of the cylinder is not less than 2000mm.

4. The test device for the spray gun of the primary dust removal system of a converter according to claim 1, characterized in that, An inlet valve (6) is installed on the inlet pipe (2).

5. The test device for the spray gun of the primary dust removal system of a converter according to claim 4, characterized in that, A flow meter (7) is installed on the pipe from the inlet valve (6) to the outlet.

6. The test device for the spray gun of the primary dust removal system of a converter according to claim 1, characterized in that, The inner diameter of the water inlet pipe (2) is not less than 100mm.

7. The test device for the spray gun of the primary dust removal system of a converter according to claim 1, characterized in that, It also includes a sewage pipe (3), which is set at the bottom of the cylinder (1) and connected to the sludge chute. A drain valve (8) is set on the sewage pipe (3).

8. The test device for the spray gun of the primary dust removal system of a converter according to claim 1, characterized in that, The initial spray angle of the spray gun (4) under test ≥120°.

9. The test device for the spray gun of the primary dust removal system of a converter according to claim 1, characterized in that, The inlet flow rate of the inlet pipe (2) is 70-80 m³ / h.

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