Coke oven flue gas dust removal change-over valve group

Abstract

The utility model relates to the field of flue gas dust removal, in particular to a coke oven flue gas dust removal change-over valve group. The utility model relates to a coke oven flue gas dust removal conversion valve group, which comprises a mounting ring, a filter pipe, a microcontroller, a gas inlet pipe, a filter screen, a cooling pipe, an exhaust pipe, a communicating pipe, an electromagnetic valve III, a high-temperature pressure sensor, a conversion block and a motor, the filter pipe penetrates through the top of the mounting ring and is communicated with the inside and the outside of the mounting ring; the air pressure in the mounting ring is measured through the high-temperature pressure sensor, and when the air pressure in the mounting ring reaches a certain value, the microcontroller controls the motor to rotate so as to drive the conversion block to rotate, so that the circular through hole in the conversion block can be aligned with the pipe orifice of any one of the cooling pipe, the filter pipe and the exhaust pipe; therefore, the flue gas is conveyed to the cooling device and the filtering device or is directly discharged.

Description

Technical Field

[0001] The utility model relates to the field of flue gas dust removal, in particular to a coke oven flue gas dust removal conversion valve group. Background Art

[0002] The flue gas generated by coke ovens during the production process usually contains a large amount of dust and harmful gases, and needs to be treated through effective dust removal technology to protect the environment and extend the service life of the equipment. The flue gas dust removal systems in the existing technology mostly use automated conversion components to achieve flue gas discharge through valve adjustment. However, these systems may encounter challenges when dealing with instantaneous high-pressure flue gas, such as misjudgment due to excessive pressure, which in turn causes the valve to open prematurely. This situation not only leads to incomplete flue gas treatment, but may also cause premature wear of the equipment. In addition, the existing technology often lacks flexibility in dealing with different types of flue gas, and cannot accurately adjust the cooling, discharge or purification paths according to the actual conditions of the flue gas. Therefore, it is necessary to design a coke oven flue gas dust removal conversion valve group that can monitor the flue gas pressure in real time and flexibly adjust the path according to different flue gas conditions, so as to improve the accuracy and efficiency of flue gas treatment. Utility Model Content

[0003] In order to overcome the shortcomings of existing technologies that often lack flexibility in dealing with different types of flue gas and cannot accurately adjust the cooling, discharge or purification paths according to the actual conditions of the flue gas, the technical problem of the utility model is to provide a coke oven flue gas dust removal conversion valve group that can monitor the flue gas pressure in real time and flexibly adjust the path according to different flue gas conditions.

[0004] The technical implementation scheme of the utility model is: a coke oven flue gas dust removal conversion valve group, including a mounting ring, a filter tube, a microcontroller, an air intake pipe, a filter screen, a cooling pipe, an exhaust pipe, a connecting pipe, a solenoid valve III, a high-temperature pressure sensor, a conversion block and a motor. The mounting ring is cylindrical as a whole and hollow inside. A filter tube is provided on the top of the mounting ring, and the filter tube passes through the top of the mounting ring and connects the inside and outside of the mounting ring. An air intake pipe is provided on the front side of the middle of the mounting ring, and the air intake pipe passes through the front side of the mounting ring and connects the inside and outside of the mounting ring. A filter screen is provided at the air inlet of the air intake pipe. A cooling pipe is provided on the left side of the mounting ring, and the cooling pipe passes through the left side of the mounting ring and connects the inside and outside of the mounting ring. An exhaust pipe is provided on the right side of the mounting ring, and the exhaust pipe passes through the mounting ring. The right side of the mounting ring connects the inside and outside of the mounting ring. The angles formed between the filter tube, cooling tube and exhaust pipe are all 120°. A microcontroller is provided on the upper front side of the mounting ring. A connecting pipe is provided on the outer side of the exhaust pipe. A solenoid valve III is provided on the connecting pipe. A high-temperature pressure sensor is provided on the top of the intake pipe. A conversion block is rotatably provided inside the mounting ring. A cylindrical groove is provided inside the conversion block and is connected to the intake pipe. A circular through hole is provided on the side of the conversion block. The motor is fixed to the rear wall of the mounting ring through the motor frame. The output shaft of the motor is connected to the rotating shaft through a coupling. The rotating shaft passes through the rear wall of the mounting ring and is fixed to the conversion block. The solenoid valve III, the high-temperature pressure sensor and the motor are all connected to the microcontroller through lines.

[0005] Optionally, the conversion block is cylindrical as a whole, with a cylindrical groove inside connected to the air intake pipe, and a circular through hole is opened on the side of the conversion block, and the diameter of the circular through hole is greater than or equal to the inner diameter of the filter tube, cooling tube, and exhaust pipe.

[0006] Optionally, it also includes a temperature sensor I, a temperature sensor II, an extension pipe, a bridge pipe, a solenoid valve I and a solenoid valve II. A temperature sensor I is provided on the outside of the cooling pipe, a temperature sensor II is provided on the outside of the exhaust pipe, the ends of the cooling pipe and the exhaust pipe are connected with extension pipes through flange extensions, the extension pipes corresponding to the cooling pipe and the exhaust pipe are penetrated and connected by a bridge pipe, the outer diameter of the bridge pipe opening is smaller than the inner diameter of the extension pipe opening, a solenoid valve I is provided on the right side of the bridge pipe, and a solenoid valve II is provided at the end of the extension pipe extended on the exhaust pipe. The temperature sensor I, the temperature sensor II, the solenoid valve I and the solenoid valve II are all connected to the microcontroller through lines.

[0007] Optionally, the filter screen is made of nickel-chromium alloy.

[0008] Optionally, the microcontroller adopts a 51 single-chip microcomputer chip.

[0009] Optionally, the ends of the air inlet pipe, filter pipe, cooling pipe and exhaust pipe are all provided with flange mechanisms, and the flange mechanism is a flat hollow cylinder as a whole, with six circular through holes at equal intervals between the top and the bottom.

[0010] The utility model has the following advantages: the utility model measures the internal air pressure of the mounting ring through a high-temperature pressure sensor. When the internal air pressure of the mounting ring reaches a certain value, the microcontroller controls the rotation of the motor to drive the conversion block to rotate, so that the circular through hole on the conversion block can be aligned with the pipe opening of any one of the cooling pipe, the filter pipe, and the exhaust pipe, thereby realizing the transmission of the flue gas to the cooling device, the filter device or direct discharge.

[0011] When the flue gas is discharged to the filter device through the filter pipe for filtration, it is connected back to the connecting pipe through the pipeline. The temperature sensor II detects the flue gas temperature and transmits the detection result to the microcontroller through the line. After the microcontroller processes the flue gas and finds that the flue gas temperature is not high, the microcontroller controls the solenoid valve I to close and the 14-solenoid valve II to open, and the flue gas is directly discharged. If the microcontroller finds that the flue gas temperature is too high after processing, the microcontroller controls the solenoid valve I to open and the solenoid valve II to close, and the flue gas flows into the cooling device through the bridge pipe and the extension pipe on the cooling pipe for cooling, realizing the intelligent conversion of flue gas cooling, filtration and discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the sectional three-dimensional structure of the installation ring, filter tube, cooling tube, exhaust pipe, etc.

[0014] Figure 3 It is a schematic diagram of the three-dimensional structure of the installation ring, intake pipe and conversion block.

[0015] Figure 4 It is a schematic diagram of the three-dimensional structure of temperature sensor I, temperature sensor II, solenoid valve I, etc.

[0016] In the above drawings: 1-mounting ring, 111-filter tube, 112-microcontroller, 2-intake pipe, 21-filter, 3-cooling pipe, 4-exhaust pipe, 5-connecting pipe, 51-solenoid valve III, 6-high temperature pressure sensor, 7-conversion block, 8-motor, 9-temperature sensor I, 10-temperature sensor II, 11-extension pipe, 12-bridge pipe, 13-solenoid valve I, 14-solenoid valve II. DETAILED DESCRIPTION

[0017] Reference herein to an embodiment means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present invention. The appearance of such a phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0018] Embodiment: A coke oven flue gas dust removal conversion valve group, such as Figures 1-4 As shown, it includes a mounting ring 1, a filter tube 111, a microcontroller 112, an intake pipe 2, a filter screen 21, a cooling pipe 3, an exhaust pipe 4, a connecting pipe 5, a solenoid valve III 51, a high-temperature pressure sensor 6, a conversion block 7 and a motor 8. The mounting ring 1 is cylindrical as a whole and hollow inside. A filter tube 111 is provided on the top of the mounting ring 1, and the filter tube 111 passes through the top of the mounting ring 1 and connects the inside and outside of the mounting ring 1. An intake pipe 2 is provided on the front side of the middle of the mounting ring 1, and the intake pipe 2 passes through the front side of the mounting ring 1 and connects the inside and outside of the mounting ring 1. A filter screen 21 is provided at the air inlet of the intake pipe 2. A cooling pipe 3 is provided on the left side of the mounting ring 1, and the cooling pipe 3 passes through the left side of the mounting ring 1 and connects the inside and outside of the mounting ring 1. An exhaust pipe 4 is provided on the right side of the mounting ring 1, and the exhaust pipe 4 passes through the right side of the mounting ring 1 and connects Inside and outside the mounting ring 1, the angles formed between the filter tube 111, the cooling tube 3 and the exhaust pipe 4 are all 120°. A microcontroller 112 is provided on the upper front side of the mounting ring 1. A connecting pipe 5 is provided on the outer side of the exhaust pipe 4. A solenoid valve III51 is provided on the connecting pipe 5. A high-temperature pressure sensor 6 is provided on the top of the intake pipe 2. A conversion block 7 is rotatably provided inside the mounting ring 1. A cylindrical groove is provided inside the conversion block 7 and is connected to the intake pipe 2. A circular through hole is provided on the side of the conversion block 7. The motor 8 is fixed to the rear wall of the mounting ring 1 through the motor frame. The output shaft of the motor 8 is connected to the rotating shaft through a coupling. The rotating shaft passes through the rear wall of the mounting ring 1 and is fixed to the conversion block 7. The solenoid valve III51, the high-temperature pressure sensor 6 and the motor 8 are all connected to the microcontroller 112 through lines.

[0019] like Figure 1-Figure 3As shown, when the flue gas continuously enters the mounting ring 1 through the intake pipe 2, the filter 21 provided at the air inlet of the intake pipe 2 can effectively filter out large-volume impurities in the flue gas. The material of the filter 21 is nickel-chromium alloy. Nickel-chromium alloy is a high-temperature resistant alloy with excellent oxidation resistance and corrosion resistance. It is often used in high-temperature environments. The service life of the filter 21 made of it can be greatly extended. As the internal air pressure of the mounting ring 1 slowly rises, because the intake pipe 2 is connected to the inside of the mounting ring 1, the internal air pressure of the mounting ring 1 can be measured by the high-temperature pressure sensor 6. When the internal air pressure of the mounting ring 1 reaches a certain value, the microcontroller 112 controls the motor 8 to rotate, thereby driving the conversion block 7 to rotate. The microcontroller 112 adopts a 51 single-chip microcomputer chip, which has stable performance and low cost. The conversion block 7 is cylindrical as a whole, with a cylindrical groove inside that is connected to the intake pipe 2. The conversion block A circular through hole is opened on the side of 7, and the diameter of the circular through hole is greater than or equal to the inner diameter of the pipe openings of the filter tube 111, the cooling tube 3, and the exhaust pipe 4. If the diameter of the circular through hole opened on the side of the conversion block 7 is too small, it will be unfavorable for the outflow of the flue gas inside the mounting ring 1. The conversion block 7 is a cylindrical body as a whole and can be rotated arbitrarily under the drive of the motor 8. The flue gas will flow to which pipe opening the only circular through hole is aligned. When the circular through hole on the conversion block 7 is aligned with the pipe opening of the cooling tube 3, the microcontroller 112 controls the motor 8 to stop rotating, and the flue gas enters the cooling device through the cooling tube 3. When the conversion block 7 is rotated to the point where the circular through hole is aligned with the pipe opening of the filter tube 111, the flue gas enters the filtering device through the filter tube 111. When the conversion block 7 is rotated to the point where the circular through hole is aligned with the pipe opening of the exhaust pipe 4, because the solenoid valve III51 on the connecting pipe 5 is in the closed state by default, the flue gas is discharged through the exhaust pipe 4.

[0020] like Figure 1 and Figure 2 As shown, when the conversion block 7 rotates to align the circular through hole with the pipe mouth of the cooling pipe 3, the microcontroller 112 controls the motor 8 to stop rotating, and the flue gas passes through the cooling pipe 3 and is detected by the temperature sensor I9 on the cooling pipe 3. The temperature sensor I9 sends the detection result to the microcontroller 112. After processing, the microcontroller 112 finds that the flue gas temperature is not high and does not need to be cooled, so it controls the solenoid valve I13 to open, the solenoid valve II14 to close, and the solenoid valve III51 to open. The flue gas is discharged through the bridge pipe 12, the extension pipe 11 extended on the exhaust pipe 4, and the connecting pipe 5. The ends of the intake pipe 2, the filter pipe 111, the cooling pipe 3 and the exhaust pipe 4 are all provided with flange mechanisms. The flange mechanism is a flat hollow cylinder as a whole, with six equally spaced circular through holes between the top and the bottom. The pipeline can be expanded through the flange mechanism, and the exhaust pipe 4 is fixedly connected to the extension pipe 11 through the flange mechanism thereon.

[0021] like Figure 1 and Figure 4As shown, it also includes a temperature sensor I9, a temperature sensor II10, an extension pipe 11, a bridge pipe 12, a solenoid valve I13 and a solenoid valve II14. A temperature sensor I9 is ​​provided on the outside of the cooling pipe 3, and a temperature sensor II10 is provided on the outside of the exhaust pipe 4. The ends of the cooling pipe 3 and the exhaust pipe 4 are connected to the extension pipe 11 through flange extensions. The extension pipes 11 corresponding to the cooling pipe 3 and the exhaust pipe 4 are penetrated and connected by the bridge pipe 12. The outer diameter of the bridge pipe 12 is smaller than the inner diameter of the extension pipe 11. A solenoid valve I13 is provided on the right side of the bridge pipe 12. The end of the extension pipe 11 extended on the exhaust pipe 4 is provided with a solenoid valve II14. The temperature sensor I9, the temperature sensor II10, the solenoid valve I13 and the solenoid valve II14 are provided. Valves II 14 are connected to the microcontroller 112 through lines. When the flue gas is discharged to the filter device through the filter tube 111 for filtration, it is connected back to the connecting pipe 5 through the pipeline. The temperature sensor II 10 detects the flue gas temperature and transmits the detection result to the microcontroller 112 through the line. After processing, the microcontroller 112 finds that the flue gas temperature is not high, then the microcontroller 112 controls the solenoid valve I 13 to close and the 14-solenoid valve II 14 to open, and directly discharges the flue gas. If the microcontroller 112 finds that the flue gas temperature is too high after processing, then the microcontroller 112 controls the solenoid valve I 13 to open and the solenoid valve II 14 to close, and the flue gas flows into the cooling device through the bridge pipe 12 and the extension pipe 11 on the cooling pipe 3 for cooling.

[0022] While the present invention has been described with reference to exemplary embodiments, it should be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all modifications and equivalent structures and functions.

Claims

1. A coke oven flue gas dust removal conversion valve group, characterized in that: The utility model comprises a mounting ring (1), a filter tube (111), a microcontroller (112), an air intake pipe (2), a filter screen (21), a cooling pipe (3), an exhaust pipe (4), a connecting pipe (5), a solenoid valve III (51), a high temperature pressure sensor (6), a conversion block (7) and a motor (8). The mounting ring (1) is cylindrical in shape and hollow inside. The top of the mounting ring (1) is provided with a filter tube (111). The filter tube (111) passes through the top of the mounting ring (1) and connects the inside and outside of the mounting ring (1). The front side of the middle of the mounting ring (1) is provided with an air intake pipe (2). The air intake pipe (2) passes through the front side of the mounting ring (1) and connects the inside and outside of the mounting ring (1). The air inlet of the air intake pipe (2) is provided with a filter screen (21). The left side of the mounting ring (1) is provided with a cooling pipe (3). The cooling pipe (3) passes through the left side of the mounting ring (1) and connects the inside and outside of the mounting ring (1). The right side of the mounting ring (1) is provided with an exhaust pipe (4). The exhaust pipe (4) passes through the mounting ring (1). ) The right side of the mounting ring (1) is connected to the inside and outside, the angles formed between the filter tube (111), the cooling tube (3) and the exhaust pipe (4) are all 120 degrees, a microcontroller (112) is provided on the upper front side of the mounting ring (1), a connecting tube (5) is provided through the outer side of the exhaust pipe (4), a solenoid valve III (51) is provided on the connecting tube (5), a high temperature pressure sensor (6) is provided on the top of the intake pipe (2), a conversion block (7) is provided in a rotatable manner inside the mounting ring (1). ), a cylindrical groove is formed inside the conversion block (7) and is communicated with the air inlet pipe (2), a circular through hole is formed on the side of the conversion block (7), the motor (8) is fixed to the rear side wall of the mounting ring (1) through the motor (8) frame, the output shaft of the motor (8) is connected to the rotating shaft through a coupling, the rotating shaft passes through the rear side wall of the mounting ring (1) and is fixed to the conversion block (7), the solenoid valve III (51), the high temperature pressure sensor (6), and the motor (8) are all connected to the microcontroller (112) through a circuit.

2. The coke oven flue gas dust removal conversion valve group according to claim 1, characterized in that: The conversion block (7) is cylindrical as a whole, with a cylindrical groove inside that is connected to the air inlet pipe (2), and a circular through hole is opened on the side of the conversion block (7), and the diameter of the circular through hole is greater than or equal to the inner diameter of the pipe opening of the filter pipe (111), the cooling pipe (3), and the exhaust pipe (4).

3. The coke oven flue gas dust removal conversion valve group according to claim 2, characterized in that: The invention also includes a temperature sensor I (9), a temperature sensor II (10), an extension pipe (11), a bridge pipe (12), an electromagnetic valve I (13) and an electromagnetic valve II (14). The temperature sensor I (9) is provided on the outside of the cooling pipe (3), and the temperature sensor II (10) is provided on the outside of the exhaust pipe (4). The ends of the cooling pipe (3) and the exhaust pipe (4) are both connected to the extension pipe (11) through flange extension. The extension pipes (11) corresponding to the cooling pipe (3) and the exhaust pipe (4) are respectively connected by the bridge pipe (12). The outer diameter of the pipe opening of the bridge pipe (12) is smaller than the inner diameter of the pipe opening of the extension pipe (11). The right side of the bridge pipe (12) is provided with an electromagnetic valve I (13). The end of the extension pipe (11) extended on the exhaust pipe (4) is provided with an electromagnetic valve II (14). The temperature sensor I (9), the temperature sensor II (10), the electromagnetic valve I (13) and the electromagnetic valve II (14) are all connected to the microcontroller (112) through a circuit.

4. The coke oven flue gas dust removal conversion valve group according to claim 3, characterized in that: The filter screen (21) is made of nickel-chromium alloy.

5. The coke oven flue gas dust removal conversion valve group according to claim 4, characterized in that: The microcontroller (112) adopts a 51 single-chip microcomputer chip.

6. The coke oven flue gas dust removal conversion valve group according to claim 5, characterized in that: The ends of the air inlet pipe (2), the filter pipe (111), the cooling pipe (3) and the exhaust pipe (4) are all provided with flange mechanisms, and the flange mechanism is in the form of a flat hollow cylinder with six circular through holes at equal intervals between the top and the bottom.

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