Pressure tapping and unblocking device for gas pipelines in converter primary dust removal system equipment.

Abstract

This utility model discloses a pressure tapping and unblocking device for gas pipelines in a converter primary dust removal system, comprising: a pressure tapper, the top of which is connected to a pressure tapping pipe; and a pneumatic unblocking device disposed above the pressure tapper for removing blockages from the pressure tapper and the pressure tapping pipe. This utility model, through the design of the pressure tapper and the pneumatic unblocking device, effectively solves the problem of easy blockage at the pressure tapping port of the gas pipeline, improving the stability and reliability of the pressure tapping device.

Description

Technical Field

[0001] This utility model belongs to the field of unblocking technology, specifically relating to a pressure tapping and unblocking device for gas pipelines in a converter primary dust removal system. Background Technology

[0002] In the primary dust removal system of a converter, the pressure tapping device on the gas pipeline plays a crucial role, responsible for monitoring pressure changes within the pipeline to ensure the normal operation of the dust removal system. However, existing pressure tapping technologies have revealed a series of problems during application.

[0003] Currently, the common practice is to directly drill holes in the gas pipeline of the converter's primary dust removal equipment and horizontally weld pressure-conducting pipes or pressure-tapping short pipes to the gas pipeline for pressure tapping. However, because the flue gas in the converter's primary dust removal gas pipeline contains fine dust and water particles, these impurities easily accumulate at the pressure tapping ports, leading to blockage. Once the pressure tapping ports are blocked, it not only affects the normal operation of the equipment but also increases the difficulty and cost of manual cleaning. In addition, condensate backflow is also a problem that cannot be ignored in the existing technology, further exacerbating the risk of blockage at the pressure tapping ports.

[0004] In existing technologies, when the pressure tap becomes blocked, manual cleaning is usually required. This not only consumes a lot of time and effort, increasing labor costs, but also exposes workers to the threat of high concentrations of harmful gases such as CO in the gas pipeline during the cleaning process, posing a serious threat to their personal safety. Utility Model Content

[0005] In view of this, the main objective of this utility model is to provide a pressure tapping and unblocking device for the gas pipeline of a converter primary dust removal system.

[0006] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0007] A pressure tapping and unblocking device for gas pipelines in a converter primary dust removal system includes:

[0008] Pressure tap 1 is installed on the gas pipeline, and the top of the pressure tap 1 is connected to the pressure tapping pipe 5;

[0009] A pneumatic unblocking device is installed above the pressure tap 1 to remove blockages from the pressure tap 1 and the pressure tapping pipe 5.

[0010] In the above scheme, the pressure tap 1 is composed of a lower cylinder, a frustum, and an upper cylinder connected in sequence and integrally formed.

[0011] In the above scheme, the diameter of the lower cylinder is 20mm, which is used as a carrier for welding short pipes or flange connections.

[0012] In the above scheme, the frustum is a slanted cone structure with a bottom diameter of 20mm, an top diameter of 40mm, a height of 50mm, and its axis forms an inclination angle of 15°-45° with the horizontal plane.

[0013] In the above scheme, the upper cylinder has a diameter of 40mm and a pressure tapping pipe is provided on the upper side; the pneumatic unblocking device is located on the top of the upper cylinder and is connected to the converter control system signal, and is used to automatically unblock in response to the tapping signal during the charging and venting state.

[0014] In the above scheme, the inclination angle of the frustum is 30°, and its conical surface forms a drainage slope from bottom to top with the horizontal plane.

[0015] In the above scheme, the lower cylinder is connected to the gas pipeline through a flange, and the sealing surface of the flange is provided with a leak-proof rubber gasket.

[0016] In the above scheme, the pressure tapping and unblocking device for the gas pipeline of the converter primary dust removal system also includes a pressure fluctuation monitoring module. The pressure fluctuation monitoring module is connected to the pressure tapping pipe 5 and is used to detect whether the pressure in the pressure tapping pipe 5 exceeds the threshold.

[0017] In the above scheme, the pressure fluctuation monitoring module includes an instrument-side inlet valve 3 and a pressure transmitter 6. One side of the pressure tapping pipe 5 is connected to the pressure transmitter 6 through a pipeline, and an instrument-side inlet valve 3 is set between the two.

[0018] In the above scheme, a drain ball valve 4 is installed at the end of the pressure tapping pipe 5.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This invention effectively solves the problem of easy blockage at the pressure tapping port of gas pipeline through the design of a pressure tapping device and a pneumatic unblocking device, thereby improving the stability and reliability of the pressure tapping device. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this invention, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 This utility model provides a schematic diagram of a pressure tapping and unblocking device for a gas pipeline in a converter primary dust removal system. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, article, or apparatus that includes that element.

[0026] This utility model embodiment provides a pressure tapping and unblocking device for the gas pipeline of a converter primary dust removal system, comprising:

[0027] Pressure tap 1, with pressure tapping tube 5 connected to the top of pressure tap 1;

[0028] A pneumatic unblocking device is installed above the pressure tap 1 and is used to remove blockages in the pressure tap 1 and the pressure tapping pipe 5.

[0029] This invention effectively solves the problem of easy blockage at the pressure tapping port of gas pipeline through the design of a pressure tapping device and a pneumatic unblocking device, thereby improving the stability and reliability of the pressure tapping device.

[0030] The pneumatic unblocking device operates pneumatically and is used to remove blockages in the pressure tap 1 and pressure tapping pipe 5.

[0031] When the pressure tapping port or pressure tapping pipe becomes blocked, the pneumatic unblocking device can quickly act to remove the blockage and ensure the normal operation of the pressure tapping unblocking device.

[0032] The pneumatic unblocking device includes: a pressure sensor to monitor the pressure value of the pressure tapping pipe 5 in real time; an electromagnetic pulse valve to start compressed air injection after receiving the steel discharge signal; and an unblocking cycle controller to set that it will operate at least once for each release state.

[0033] Pressure tap 1 is cone-shaped and is installed on the gas pipeline to effectively prevent condensate backflow.

[0034] The pressure tap 1 is composed of a lower cylinder, a frustum, and an upper cylinder connected in sequence and integrally formed.

[0035] The lower cylinder has a diameter of 20mm and is used as a carrier for welding short pipes or flange connections.

[0036] The frustum is a slanted cone structure with a bottom diameter of 20mm, an top diameter of 40mm, and a height of 50mm. Its axis forms an inclination angle of 15°-45° with the horizontal plane.

[0037] The upper cylinder has a diameter of 40mm, and a pressure tapping pipe 5 is installed on the upper side. The installation of the pressure tapping pipe 5 here can effectively prevent dust particles, condensate, etc. from clogging the pressure tapping port.

[0038] The pneumatic unblocking device is located at the top of the upper cylinder and is connected to the converter control system signal. It is used to automatically unblock in response to the steel tapping signal during the charging and unloading process. When the steel tapping signal is received during the charging and unloading process, the pneumatic unblocking device will automatically operate once to complete the unblocking.

[0039] The lower cylindrical section, with a diameter of 20mm, serves as a welding short pipe or flange connection carrier, facilitating welding and installation on the gas pipeline. The truncated cone has a lower base diameter of 20mm, an upper base diameter of 40mm, and a height of 50mm. The truncated cone is designed as an inclined cone section. In the converter's primary dust removal system, depending on the converter's smelting state, the fan speed is often low during steel tapping and iron charging. At this time, no gas is generated, the recovery cup valve is closed, and the flue gas flows towards the vent chimney. No flue gas flows through the gas pipeline, the pipeline pressure is low, and condensate easily flows back to the vent. Inside the flue gas duct; a 40mm thick upper cylinder is installed on the truncated cone. A pressure tapping pipe 5 is connected to the upper side of the upper cylinder. The installation of the pressure tapping pipe here can effectively prevent dust particles, condensate, etc. from clogging the pressure tapping port; a pneumatic unblocking device is installed on the lower surface. In the state of loading the furnace and releasing bulk materials, when the steel signal is removed, the unblocking device will automatically operate once to complete the unblocking. The program automatically judges whether the pressure tapping status is normal; the entire structure consists of a lower cylinder, a truncated cone, and an upper cylinder, forming a pressure tapping structure. Combined with the pneumatic unblocking device, it forms a new type of pressure tapping and unblocking device.

[0040] Because the fan speed is often low during steel tapping and iron charging, depending on the smelting state of the converter, the recovery cup valve is closed, the flue gas flows towards the venting chimney, there is no flue gas flowing through the gas pipeline, the pipeline pressure is low, and the condensate easily flows back into the flue gas pipeline, so the inclination angle of the truncated cone is 30°, and its conical surface forms a drainage slope from bottom to top with the horizontal plane.

[0041] The lower cylinder is connected to the gas pipeline via a flange, and the sealing surface of the flange is equipped with a leak-proof rubber gasket.

[0042] Furthermore, it also includes a pressure fluctuation monitoring module, which is connected to the pressure tapping tube 5 and is used to detect whether the pressure inside the pressure tapping tube 5 exceeds a threshold.

[0043] Pressure tap 5 is used to transmit the pressure in the gas pipeline to the subsequent pressure fluctuation monitoring module.

[0044] The pressure fluctuation monitoring module includes an instrument-side inlet valve 3 and a pressure transmitter 6. One side of the pressure tapping pipe 5 is connected to the pressure transmitter 6 through a pipeline, and an instrument-side inlet valve 3 is installed between the two.

[0045] A drain ball valve 4 is installed at the end of the pressure tapping pipe 5 to drain the dirt or condensate in the pressure tapping pipe 5 when needed, so as to further ensure the cleanliness and smooth flow of the pressure tapping device.

[0046] During normal equipment operation, the DCS system can automatically trigger the unblocking action of the pressure tapping and unblocking device based on time settings or pressure fluctuations. During the unblocking process, the pneumatic unblocking device will quickly move to remove the blockages in the pressure tap 1 and pressure tapping pipe 5, and send a signal to the DCS central control system to ensure the normal operation of the system.

[0047] Alternatively, the operator can manually trigger the unblocking action of the pressure tapping and unblocking device via the local control button.

[0048] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model.

Claims

1. A pressure tapping and unblocking device for gas pipelines in a converter primary dust removal system, characterized in that, include: A pressure tap (1) is installed on a gas pipeline, and the top of the pressure tap (1) is connected to a pressure tapping pipe (5). A pneumatic unblocking device is installed above the pressure tap (1) and is used to remove blockages in the pressure tap (1) and the pressure tapping pipe (5).

2. The pressure tapping and unblocking device for the gas pipeline of the primary dust removal system of a converter as described in claim 1, characterized in that, The pressure tap (1) is formed by connecting the lower cylinder, the frustum and the upper cylinder in sequence and forming a single piece.

3. The pressure tapping and unblocking device for the gas pipeline of the primary dust removal system of a converter as described in claim 2, characterized in that, The lower cylinder has a diameter of 20mm and is used as a carrier for welding short pipes or flange connections.

4. The pressure tapping and unblocking device for the gas pipeline of the primary dust removal system of a converter as described in claim 3, characterized in that, The truncated cone is a slanted conical structure with a bottom diameter of 20mm, an top diameter of 40mm, and a height of 50mm. Its axis forms an inclination angle of 15°-45° with the horizontal plane.

5. The pressure tapping and unblocking device for the gas pipeline of the primary dust removal system of a converter according to claim 4, characterized in that, The upper cylinder has a diameter of 40mm and a pressure tapping pipe is provided on its upper side; the pneumatic unblocking device is located on the top of the upper cylinder and is connected to the converter control system signal, and is used to automatically unblock in response to the tapping signal during the charging and venting state.

6. The pressure tapping and unblocking device for the gas pipeline of the primary dust removal system of a converter as described in claim 5, characterized in that, The truncated cone has an inclination angle of 30°, and its conical surface forms a drainage slope from bottom to top with the horizontal plane.

7. The pressure tapping and unblocking device for the gas pipeline of the primary dust removal system of a converter as described in claim 6, characterized in that, The lower cylinder is connected to the gas pipeline via a flange, and the sealing surface of the flange is equipped with a leak-proof rubber gasket.

8. The pressure tapping and unblocking device for the gas pipeline of a converter primary dust removal system according to any one of claims 1-7, characterized in that, It also includes a pressure fluctuation monitoring module, which is connected to the pressure tapping tube (5) and is used to detect whether the pressure in the pressure tapping tube (5) exceeds the threshold.

9. The pressure tapping and unblocking device for the gas pipeline of a converter primary dust removal system according to claim 8, characterized in that, The pressure fluctuation monitoring module includes an instrument-side inlet valve (3) and a pressure transmitter (6). One side of the pressure tapping pipe (5) is connected to the pressure transmitter (6) through a pipeline, and an instrument-side inlet valve (3) is provided between the two.

10. The pressure tapping and unblocking device for the gas pipeline of a converter primary dust removal system according to claim 9, characterized in that, A drain ball valve (4) is installed at the end of the pressure tapping pipe (5).

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