A nozzle assembly for exhaust gas treatment in a de-icing and de-pressure reducing device

Abstract

This invention discloses a nozzle assembly for waste gas treatment in a de-icing and de-pressure device, relating to the field of waste gas treatment technology. It includes a waste gas pipe, a fixed housing, an inner cavity, a rotating seat, a telescopic nozzle, a conveying device, a cooling mechanism, a forward and reverse flushing mechanism, and a driving mechanism. In this invention, waste gas conveying and treatment liquid conveying are carried out simultaneously. Urea solution can be precisely sprayed from the telescopic nozzle to mix and react with the waste gas, effectively reducing the concentration of harmful substances in the waste gas. When the telescopic nozzle needs cleaning, the conveying device, driving mechanism, and forward and reverse flushing mechanism work together to complete the cleaning and replacement of the nozzle without stopping the machine, ensuring continuous production. This invention has excellent cooling effect; the cooling mechanism cools both the entire device and individual nozzles, and the coolant circulates within a specific structure, ensuring the reliability and stability of the telescopic nozzle's continuous operation, extending the nozzle's service life, and reducing maintenance costs.

Description

Technical fields:

[0001] This invention relates to the field of waste gas treatment technology, and in particular to a nozzle assembly for waste gas treatment in a de-cooling and de-pressure device. Background technology:

[0002] In industrial production processes, many technologies generate high-temperature, high-pressure waste gases containing harmful substances. If these waste gases are discharged directly without effective treatment, they will not only cause serious environmental pollution but may also endanger human health. Desuperheating and pressure-reducing devices, as key equipment in waste gas pretreatment, can lower the temperature and pressure of waste gases, creating favorable conditions for subsequent purification treatment. Within these devices, the nozzle assembly for waste gas treatment plays a crucial role, and its performance directly affects the effectiveness and efficiency of waste gas treatment.

[0003] Traditional exhaust gas treatment nozzle assemblies for desuperheating and pressure reduction devices have several drawbacks. Firstly, during long-term use, the nozzles are prone to clogging due to impurities and chemical reaction products in the exhaust gas, leading to uneven spraying. This, in turn, affects the thorough mixing and reaction of the exhaust gas with the treatment liquid (such as urea solution), reducing the removal rate of harmful substances in the exhaust gas. Secondly, traditional nozzle assemblies typically lack effective cooling measures. When treating high-temperature exhaust gases, the nozzles are easily damaged by overheating, shortening the equipment's lifespan and increasing maintenance costs. Furthermore, if a nozzle malfunctions and requires cleaning or repair, it often necessitates downtime, causing production interruptions and disrupting normal business operations.

[0004] To address the problems of traditional nozzle assemblies and meet increasingly stringent environmental requirements and the need for continuous industrial production, it is urgent to develop a nozzle assembly for waste gas treatment in a de-icing and pressure-reducing device that is structurally simple, low in production cost, easy to install, and has good cleaning and cooling functions. Summary of the Invention:

[0005] The purpose of this invention is to provide a nozzle assembly for waste gas treatment in a de-cooling and de-pressure device to solve the above-mentioned problems. This invention addresses the issues of uneven spraying caused by easy clogging of nozzles in traditional nozzle assemblies, overheating and damage caused by lack of effective cooling measures, and the need for shutdown for maintenance and cleaning, which affects production continuity.

[0006] To address the aforementioned problems, this invention provides a technical solution: a nozzle assembly for treating exhaust gas in a de-icing and de-pressure reducing device, comprising an exhaust gas pipe, a fixed housing, an inner cavity, a rotating seat, telescopic nozzles, a conveying device, a cooling mechanism, a forward and reverse flushing mechanism, and a driving mechanism; the fixed housing is fixedly connected to the top of the exhaust gas pipe; the fixed housing has an inner cavity inside, and the rotating seat is movably connected inside the inner cavity; several telescopic nozzles are respectively arranged around the rotating seat; the conveying device is located on the upper left side of the fixed housing, and the lower side of the conveying device is connected to the upper side of the telescopic nozzle on the left side; the cooling mechanism is located inside the rotating seat and on the lower left side of the fixed housing; the driving mechanism is located in the center of the upper side of the fixed housing, and the lower side of the driving mechanism is fixedly connected to the outer side of the upper side of the rotating seat; the forward and reverse flushing mechanism is located on the right side of the fixed housing, and the left opening of the forward and reverse flushing mechanism is connected to the upper and lower openings of the telescopic nozzle on the right side.

[0007] Preferably, the telescopic nozzle has the following structure: a nozzle tube, a guide hole, a spring, and a nozzle hole; the guide hole is vertically located inside the edge of the rotating seat; the nozzle tube is vertically movably connected to the inside of the guide hole; the nozzle tube has a nozzle hole in the center; and a spring is provided between the upper stepped surface of the nozzle tube and the lower stepped surface of the guide hole.

[0008] Preferably, the nozzle tube has a T-shape on the outside.

[0009] Preferably, the conveying device includes a fixed base, a movable conveying pipe, a second guide hole, a fixed conveying pipe, a cylinder, a guide groove, a movable block, and a connecting hole. The connecting hole is located on the upper left side of the inner cavity. The bottom of the fixed base is fixedly connected to the upper left side of the fixed housing. The center left side of the fixed base has a vertical second guide hole, and the lower opening of the second guide hole is connected to the upper opening of the connecting hole. The guide groove is vertically located on the right side of the second guide hole, and a cylinder is fixedly connected to the center of the upper side of the guide groove. The upper outer side of the fixed conveying pipe is fixedly connected to the center of the upper side of the second guide hole. The movable conveying pipe is movably connected to the inside of the second guide hole, and the center of the movable conveying pipe is movably connected to the outside of the fixed conveying pipe. A movable block is fixedly connected to the upper right side of the movable conveying pipe. The movable block is vertically movably connected to the inside of the guide groove, and the top of the movable block is fixedly connected to the end of the lower telescopic rod of the cylinder.

[0010] Preferably, the lower outer side of the active delivery pipe is conical.

[0011] Preferably, the cooling mechanism includes an inlet water pipe, a first connecting hole, a first spiral hole, a nozzle cooling device, a column, an outlet water pipe, a second connecting hole, an inner annular groove, and a third connecting hole. The first spiral hole is located inside the circumference of the rotating seat. The upper outer side of the inlet water pipe is fixedly connected to the center of the upper side of the inner cavity. The first connecting hole is located inside the upper left side of the rotating seat, its left side communicating with the upper side of the first spiral hole, and its upper inner side movably connected to the lower outer side of the inlet water pipe. The lower outer side of the column is fixedly connected to the center of the lower side of the inner cavity. The upper outer side is movably connected to the lower center of the rotating seat. The column is provided with a second connecting hole inside, and an output water pipe is fixedly connected to the lower rear opening of the second connecting hole. The nozzle cooling device is fixedly connected to the lower left opening of the fixed housing. The upper inlet of the nozzle cooling device is connected to the interior of the first connecting hole, and the right outlet of the nozzle cooling device is connected to the interior of the second connecting hole. The inner ring groove is opened on the lower center inner wall of the rotating seat. The right side of the inner ring groove is connected to the lower right outlet of the first spiral hole through the third connecting hole, and the interior of the inner ring groove is connected to the upper opening of the second connecting hole.

[0012] Preferably, the nozzle cooling device comprises a heat-conducting block, a second spiral hole, a third guide hole, a first connecting pipe, a fourth connecting hole, an end-face annular groove, and a second connecting pipe. The heat-conducting block is fixedly connected to the lower left side of the fixed base. The third guide hole is located in the center of the heat-conducting block, and the second spiral hole is located around the center of the heat-conducting block. The first connecting pipe and the second connecting pipe are fixedly connected to the openings on both sides of the second spiral hole. The end-face annular groove is located around the center of the bottom surface of the rotating base. The lower left side of the end-face annular groove is connected to the right opening of the first connecting pipe, and the upper left side of the end-face annular groove is connected to the interior of the first connecting hole through the fourth connecting hole. The right side of the second connecting pipe is connected to the interior of the second connecting hole.

[0013] Preferably, the drive mechanism includes a servo motor, a drive gear, and a driven gear; the servo motor is fixedly connected to the right side of the center of the top surface of the fixed base, and the drive gear is fixedly connected to the lower output shaft of the servo motor; the driven gear is fixedly connected to the outside of the upper side of the rotating base inside the center, and the driven gear is connected to the drive gear.

[0014] Preferably, the specific structure of the forward and reverse flushing mechanism includes a mounting housing, a first forward and reverse flushing pipe, a reversing valve, a flushing input pipe, a drain pipe, and a second forward and reverse flushing pipe. The mounting housing is fixedly connected to the right side of the fixed housing. A reversing valve is fixedly connected inside the center of the right side of the mounting housing, and a drain pipe and a flushing input pipe are fixedly connected to the inlet and outlet of the reversing valve, respectively. The first forward and reverse flushing pipe is fixedly connected to the inside of the upper side of the mounting housing. The left opening of the first forward and reverse flushing pipe is connected to the upper right side of the inner cavity, and the right opening of the first forward and reverse flushing pipe is connected to the upper interface of the reversing valve. The second forward and reverse flushing pipe is fixedly connected to the inside of the lower side of the mounting housing. The left opening of the second forward and reverse flushing pipe is connected to the lower right side of the inner cavity, and the right opening of the second forward and reverse flushing pipe is connected to the lower interface of the reversing valve.

[0015] The beneficial effects of the present invention are: (1) The present invention has a reasonable and simple structure, low production cost, and convenient installation. All components work together to ensure the high efficiency of waste gas treatment. Waste gas transportation and treatment liquid transportation are carried out simultaneously. Urea solution can be accurately sprayed from the telescopic nozzle to mix and react with the waste gas, effectively reducing the concentration of harmful substances in the waste gas.

[0016] (2) The present invention has a convenient nozzle cleaning function. When it is necessary to clean the telescopic nozzle, the conveying device, the drive mechanism and the forward and reverse flushing mechanism work together to complete the cleaning and replacement of the nozzle without stopping the machine, thus ensuring the continuity of production.

[0017] (3) The present invention has a good cooling effect. The cooling mechanism cools the entire nozzle and individual nozzles. The coolant circulates within a specific structure, ensuring the reliability and stability of the telescopic nozzle during operation, extending the service life of the nozzle and reducing maintenance costs. Attached image description:

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 for Figure 1 A sectional view.

[0020] Figure 3 This is a schematic diagram of the telescopic nozzle.

[0021] Figure 4 This is a schematic diagram of the conveying device.

[0022] Figure 5 This is a schematic diagram of the cooling mechanism.

[0023] Figure 6 This is a schematic diagram of the nozzle cooling device.

[0024] Figure 7 This is a schematic diagram of the drive mechanism.

[0025] Figure 8 This is a schematic diagram of the forward and reverse rinsing mechanism.

[0026] 1-Exhaust gas pipe; 2-Fixed housing; 3-Inner cavity; 4-Rotating seat; 5-Telescopic nozzle; 6-Conveying device; 7-Cooling mechanism; 8-Forward and reverse flushing mechanism; 9-Drive mechanism; 51-Nozzle pipe; 52-Guide hole one; 53-Spring; 54-Nozzle hole; 61-Fixed seat; 62-Modible conveying pipe; 63-Guide hole two; 64-Fixed conveying pipe; 65-Cylinder; 66-Guide groove; 67-Modible block; 68-Connecting hole; 71-Input water pipe; 72-Connecting hole one; 73-Spiral hole one; 74-Nozzle cooling device 75-Cylinder; 76-Output water pipe; 77-Connecting hole two; 78-Inner annular groove; 79-Connecting hole three; 741-Heat-conducting block; 742-Helical hole two; 743-Guide hole three; 744-Connecting pipe one; 745-Connecting hole four; 746-End face annular groove; 747-Connecting pipe two; 91-Servo motor; 92-Drive gear; 93-Driven gear; 81-Mounting housing; 82-Forward and reverse flushing pipe one; 83-Reversing valve; 84-Flushing input pipe; 85-Drainage pipe; 86-Forward and reverse flushing pipe two. Detailed implementation method:

[0027] like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical solution: a nozzle assembly for treating waste gas in a de-icing and de-pressure reducing device, including a waste gas pipe 1, a fixed housing 2, an inner cavity 3, a rotating seat 4, a telescopic nozzle 5, a conveying device 6, a cooling mechanism 7, a forward and reverse flushing mechanism 8, and a driving mechanism 9; the fixed housing 2 is fixedly connected to the top of the waste gas pipe 1; the inner cavity 3 is provided inside the fixed housing 2, and the rotating seat 4 is movably connected inside the inner cavity 3; there are several telescopic nozzles 5, which are respectively arranged inside the rotating seat 4; the conveying device 6 is located on the upper left side of the fixed housing 2, and the lower side of the conveying device 6 is connected to the upper side of the telescopic nozzle 5 on the left side; the cooling mechanism 7 is located inside the rotating seat 4 and on the lower left side of the fixed housing 2; the driving mechanism 9 is located in the center of the upper side of the fixed housing 2, and the lower side of the driving mechanism 9 is fixedly connected to the outer side of the upper side of the rotating seat 4; the forward and reverse flushing mechanism 8 is located on the right side of the fixed housing 2, and the left opening of the forward and reverse flushing mechanism 8 is connected to the upper and lower openings of the telescopic nozzle 5 on the right side.

[0028] like Figure 3As shown, the specific structure of the telescopic nozzle 5 includes a nozzle tube 51, a guide hole 52, a spring 53, and a nozzle hole 54; the guide hole 52 is vertically located inside the edge of the rotating seat 4; the nozzle tube 51 is vertically movably connected to the inside of the guide hole 52, and the nozzle hole 54 is provided in the center of the nozzle tube 51; a spring 53 is provided between the upper stepped surface of the nozzle tube 51 and the lower stepped surface of the guide hole 52.

[0029] The nozzle tube 51 has a T-shaped exterior.

[0030] like Figure 4 As shown, the specific structure of the conveying device 6 includes a fixed base 61, a movable conveying pipe 62, a second guide hole 63, a fixed conveying pipe 64, a cylinder 65, a guide groove 66, a movable block 67, and a connecting hole 68; the connecting hole 68 is located on the upper left side of the inner cavity 3; the bottom of the fixed base 61 is fixedly connected to the upper left side of the fixed housing 2, and the center left side of the fixed base 61 has a vertical guide hole 63, the lower opening of the second guide hole 63 is connected to the upper opening of the connecting hole 68; the guide groove 66 is vertically located on the right side of the second guide hole 63. A cylinder 65 is fixedly connected to the center of the upper side of the guide groove 66; the upper side of the fixed conveying pipe 64 is fixedly connected to the center of the upper side of the guide hole 63; the outer side of the movable conveying pipe 62 is movably connected to the inside of the guide hole 63, and the center of the movable conveying pipe 62 is movably connected to the outer side of the fixed conveying pipe 64; a movable block 67 is fixedly connected to the upper right side of the movable conveying pipe 62; the outer side of the movable block 67 is vertically movably connected to the inside of the guide groove 66, and the top of the movable block 67 is fixedly connected to the end of the telescopic rod on the lower side of the cylinder 65.

[0031] The lower outer side of the movable conveying pipe 62 is conical.

[0032] like Figure 5As shown, the specific structure of the cooling mechanism 7 includes an input water pipe 71, a first connecting hole 72, a first spiral hole 73, a nozzle cooling device 74, a column 75, an output water pipe 76, a second connecting hole 77, an inner annular groove 78, and a third connecting hole 79; the first spiral hole 73 is located inside the circumference of the rotating seat 4; the upper outer side of the input water pipe 71 is fixedly connected to the upper center of the inner cavity 3; the first connecting hole 72 is located inside the upper left side of the rotating seat 4, the left side of the first connecting hole 72 is connected to the upper side of the first spiral hole 73, and the upper inner side of the first connecting hole 72 is movably connected to the lower outer side of the input water pipe 71; the lower outer side of the column 75 is fixedly connected to the lower center of the inner cavity 3, and the column... The upper outer side of the column 75 is movably connected to the lower center of the rotating seat 4. The column 75 has a second connecting hole 77 inside, and an output water pipe 76 is fixedly connected to the lower rear opening of the second connecting hole 77. The nozzle cooling device 74 is fixedly connected to the lower left opening of the fixed housing 2. The upper inlet of the nozzle cooling device 74 is connected to the interior of the first connecting hole 72, and the right outlet of the nozzle cooling device 74 is connected to the interior of the second connecting hole 77. The inner ring groove 78 is opened on the lower center inner wall of the rotating seat 4. The right side of the inner ring groove 78 is connected to the lower right outlet of the first spiral hole 73 through the third connecting hole 79. The interior of the inner ring groove 78 is connected to the upper opening of the second connecting hole 77.

[0033] like Figure 6 As shown, the specific structure of the nozzle cooling device 74 includes a heat-conducting block 741, a spiral hole 742, a guide hole 743, a connecting pipe 744, a connecting hole 745, an end face annular groove 746, and a connecting pipe 747. The heat-conducting block 741 is fixedly connected to the lower left side of the fixed base 61. The heat-conducting block 741 has a guide hole 743 in its center. The heat-conducting block 741 has a spiral hole 742 in its center. The openings on both sides of the spiral hole 742 are fixedly connected to the connecting pipe 744 and the connecting pipe 747, respectively. The end face annular groove 746 is opened around the center of the bottom surface of the rotating base 4. The lower left side of the end face annular groove 746 is connected to the right opening of the connecting pipe 744. The upper left side of the end face annular groove 746 is connected to the interior of the connecting hole 72 through the connecting hole 745. The right side of the connecting pipe 747 is connected to the interior of the connecting hole 747.

[0034] like Figure 7 As shown, the specific structure of the drive mechanism 9 includes a servo motor 91, a drive gear 92, and a driven gear 93; the servo motor 91 is fixedly connected to the right side of the center of the top surface of the fixed base 61, and the drive gear 92 is fixedly connected to the lower output shaft of the servo motor 91; the driven gear 93 is fixedly connected to the outer side of the upper side of the rotating base 4 inside the center, and the driven gear 93 is connected to the drive gear 92.

[0035] like Figure 8As shown, the specific structure of the forward and reverse flushing mechanism 8 includes a mounting housing 81, a first forward and reverse flushing pipe 82, a reversing valve 83, a flushing input pipe 84, a drain pipe 85, and a second forward and reverse flushing pipe 86. The mounting housing 81 is fixedly connected to the right side of the fixed housing 2. The reversing valve 83 is fixedly connected to the center of the right side of the mounting housing 81, and the drain pipe 85 and the flushing input pipe 84 are fixedly connected to the inlet and outlet of the reversing valve 83, respectively. The first forward and reverse flushing pipe 82 is fixedly connected to the upper side of the mounting housing 81. The left opening of the first forward and reverse flushing pipe 82 is connected to the upper right side of the inner cavity 3, and the right opening of the first forward and reverse flushing pipe 82 is connected to the upper interface of the reversing valve 83. The second forward and reverse flushing pipe 86 is fixedly connected to the lower side of the mounting housing 81. The left opening of the second forward and reverse flushing pipe 86 is connected to the lower right side of the inner cavity 3, and the right opening of the second forward and reverse flushing pipe 86 is connected to the lower interface of the reversing valve 83.

[0036] The invention is used in the following way: It has a reasonable and simple structure, low production cost, and convenient installation. During the use of the nozzle assembly for waste gas treatment in the desuperheating and pressure reducing device, all components work together closely. The waste gas is transported by the waste gas pipe 1, and the conveying device 6 operates synchronously. The fixed conveying pipe 64 introduces urea solution, which is then extended by the telescopic rod of the cylinder 65, pushing the movable block 67 and the movable conveying pipe 62 downwards within the guide hole 63. This connects the fixed conveying pipe 64 and the movable conveying pipe 62, allowing the urea solution to flow through the connecting hole 68 and the inner cavity 3 from the left telescopic nozzle 5. The nozzle 54 inside the nozzle pipe 51 sprays out, mixes with the exhaust gas, and reacts to reduce the concentration of harmful substances in the exhaust gas. When it is necessary to clean the telescopic nozzle 5 on the left, the conveying device 6 starts to operate, the cylinder 65 shortens, driving the movable block 67 to move upward, thereby causing the movable conveying pipe 62 to move upward and separate from the telescopic nozzle 5 on the left. Subsequently, the drive mechanism 9 starts, the servo motor 91 runs, and its lower output shaft drives the drive gear 92 to rotate. The drive gear 92 meshes with the driven gear 93, driving the rotating seat 4 to rotate, so that the telescopic nozzle 5 originally located on the left rotates to the right. The position of the side forward and reverse flushing mechanism 8 is now set. At this point, the forward and reverse flushing mechanism 8 begins operation, performing forward and reverse flushing on the rotating telescopic nozzle 5. During the flushing process, the reversing valve 83 controls the flushing input pipe 84 and the drain pipe 85, causing the flushing fluid to flow alternately in the first forward and reverse flushing pipe 82 and the second forward and reverse flushing pipe 86, thoroughly cleaning the telescopic nozzle 5. Simultaneously, as the rotating seat 4 rotates, new or already cleaned telescopic nozzles 5 will rotate to the working position to continue the exhaust gas treatment work. Throughout the entire operation, the cooling mechanism 7 plays a crucial role. The coolant is introduced through the input water pipe 71 and enters the spiral hole 73 through the first connection hole 72 to cool the area around the rotating seat 4. At the same time, the coolant circulates in the nozzle cooling device 74 to cool the telescopic nozzle 5 separately during operation. The heat-conducting block 741 in the nozzle cooling device 74 transfers heat to the coolant. The coolant flows in the spiral hole 742 and circulates through the first connection pipe 744, the fourth connection hole 745, the end face annular groove 746, and the second connection pipe 747 to ensure the reliability and stability of the telescopic nozzle 5 during continuous operation.

[0037] The control method of this invention is either manual start-up or control through existing automation technology. The wiring diagram of the power element and the supply of power are common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail here.

[0038] In the description of the invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "both ends," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0039] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the invention. Those skilled in the art should understand that the invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications may be made to the invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A nozzle assembly for treating waste gas in a de-icing and de-pressure device, comprising a waste gas pipe (1), characterized in that: It also includes a fixed housing (2), an inner cavity (3), a rotating seat (4), a telescopic nozzle (5), a conveying device (6), a cooling mechanism (7), a forward and reverse flushing mechanism (8), and a drive mechanism (9); The top of the exhaust pipe (1) is fixedly connected to a fixed housing (2); The fixed housing (2) has an inner cavity (3) inside, and a rotating seat (4) is movably connected inside the inner cavity (3). There are several telescopic nozzles (5), and the several telescopic nozzles (5) are respectively arranged inside the rotating base (4); The conveying device (6) is located on the upper left side of the fixed housing (2), and the lower side of the conveying device (6) is connected to the upper side of the telescopic nozzle (5) on the left side. The cooling mechanism (7) is located inside the rotating seat (4) and on the lower left side of the fixed housing (2); The drive mechanism (9) is located at the center of the upper side of the fixed housing (2), and the lower side of the drive mechanism (9) is fixedly connected to the upper side of the rotating seat (4). The forward and reverse flushing mechanism (8) is located on the right side of the fixed housing (2), and the left opening of the forward and reverse flushing mechanism (8) is connected to the upper and lower openings of the telescopic nozzle (5) on the right side. The conveying device (6) includes a fixed seat (61), a movable conveying pipe (62), a cylinder (65) and a movable block (67). The bottom of the fixed seat (61) is fixedly connected to the upper left side of the fixed housing (2). The upper right side of the movable conveying pipe (62) is fixedly connected to the movable block (67). The top of the movable block (67) is fixedly connected to the end of the telescopic rod on the lower side of the cylinder (65). The drive mechanism (9) includes a servo motor (91), a drive gear (92), and a driven gear (93). The servo motor (91) is fixedly connected to the right side of the center of the top surface of the fixed base (61). The drive gear (92) is fixedly connected to the output shaft of the servo motor (91) on the lower side. The driven gear (93) is fixedly connected to the outside of the upper side of the rotating base (4) in the center. The driven gear (93) is connected to the drive gear (92). The forward and reverse flushing mechanism (8) includes a forward and reverse flushing pipe one (82) and a forward and reverse flushing pipe two (86); the forward and reverse flushing pipe one (82) is fixedly connected to the upper side of the mounting housing (81), the left opening of the forward and reverse flushing pipe one (82) is connected to the upper right side of the inner cavity (3), the forward and reverse flushing pipe two (86) is fixedly connected to the lower side of the mounting housing (81), the left opening of the forward and reverse flushing pipe two (86) is connected to the lower right side of the inner cavity (3); The cooling mechanism (7) includes a spiral hole (73) and a nozzle cooling device (74). The spiral hole (73) is located inside the circumference of the rotating seat (4). The nozzle cooling device (74) is fixedly connected to the lower left opening of the fixed housing (2). The nozzle cooling device (74) includes a heat-conducting block (741) and a guide hole (743). The heat-conducting block (741) is fixedly connected to the lower left side of the fixed seat (61). The heat-conducting block (741) has a guide hole (743) in the center, and the guide hole (743) is used to cool the telescopic nozzle (5) in operation separately.

2. The nozzle assembly for waste gas treatment in the desuperheating and depressurization device according to claim 1, characterized in that: The specific structure of the telescopic nozzle (5) includes a nozzle tube (51), a guide hole (52), a spring (53), and a nozzle hole (54). The guide hole (52) is vertically located inside the edge of the rotating seat (4); The nozzle tube (51) is vertically connected to the inside of the guide hole (52). The nozzle tube (51) has a nozzle hole (54) in the center. A spring (53) is provided between the upper step surface of the nozzle tube (51) and the lower step surface of the guide hole (52).

3. The nozzle assembly for waste gas treatment in the desuperheating and depressurization device according to claim 2, characterized in that: The nozzle tube (51) has a T-shaped exterior.

4. The nozzle assembly for waste gas treatment in the desuperheating and depressurization device according to claim 1, characterized in that: The conveying device (6) also includes a second guide hole (63), a fixed conveying pipe (64), a guide groove (66), and a connecting hole (68). The connecting hole (68) is located on the upper left side of the inner cavity (3); The fixed base (61) has a vertical guide hole 2 (63) inside the center left side, and the lower opening of the guide hole 2 (63) is connected to the upper opening of the connecting hole (68). The guide groove (66) is vertically opened on the right side of the guide hole (63), and a cylinder (65) is fixedly connected to the center of the upper side of the guide groove (66). The upper outer side of the fixed conveying pipe (64) is fixedly connected to the upper center of the guide hole (63); The movable conveying pipe (62) is externally connected to the inside of the guide hole two (63), and the central interior of the movable conveying pipe (62) is externally connected to the fixed conveying pipe (64). The movable block (67) is vertically connected to the inside of the guide groove (66).

5. The nozzle assembly for waste gas treatment in the desuperheating and depressurization device according to claim 4, characterized in that: The lower outer side of the active delivery pipe (62) is conical.

6. The nozzle assembly for waste gas treatment in the desuperheating and depressurization device according to claim 1, characterized in that: The cooling mechanism (7) also includes an inlet water pipe (71), a first connection hole (72), a column (75), an outlet water pipe (76), a second connection hole (77), an inner ring groove (78), and a third connection hole (79). The upper outer side of the input water pipe (71) is fixedly connected to the upper center of the inner cavity (3); The first connecting hole (72) is located inside the upper left side of the rotating seat (4). The left side of the first connecting hole (72) is connected to the upper side of the first spiral hole (73). The upper side of the first connecting hole (72) is movably connected to the lower side of the input water pipe (71). The lower outer side of the column (75) is fixedly connected to the lower center of the inner cavity (3), and the upper outer side of the column (75) is movably connected to the lower center of the rotating seat (4). The column (75) is provided with a second connection hole (77), and an output water pipe (76) is fixedly connected to the lower rear opening of the second connection hole (77). The upper inlet of the nozzle cooling device (74) is connected to the inside of the first connection hole (72), and the right outlet of the nozzle cooling device (74) is connected to the inside of the second connection hole (77). The inner ring groove (78) is opened on the lower central inner wall of the rotating seat (4). The right side of the inner ring groove (78) is connected to the lower right outlet of the spiral hole (73) through the connecting hole three (79). The interior of the inner ring groove (78) is connected to the upper opening of the connecting hole two (77).

7. The nozzle assembly for waste gas treatment in the desuperheating and depressurization device according to claim 1, characterized in that: The nozzle cooling device (74) also includes a spiral hole two (742), a connecting pipe one (744), a connecting hole four (745), an end face annular groove (746), and a connecting pipe two (747). The heat-conducting block (741) has a spiral hole two (742) inside the center, and a connecting pipe one (744) and a connecting pipe two (747) are fixedly connected to the openings on both sides of the spiral hole two (742). The end face annular groove (746) is opened around the center of the bottom surface of the rotating seat (4). The lower left side of the end face annular groove (746) is connected to the right opening of the connecting pipe (744). The upper left side of the end face annular groove (746) is connected to the inside of the connecting hole (72) through the connecting hole (745). The right side of the second connecting pipe (747) is connected to the inside of the second connecting hole (77).

8. The nozzle assembly for waste gas treatment in the desuperheating and depressurization device according to claim 1, characterized in that: The forward and reverse flushing mechanism (8) also includes a mounting housing (81), a reversing valve (83), a flushing input pipe (84), and a drain pipe (85). The mounting housing (81) is fixedly connected to the right side of the fixed housing (2). A reversing valve (83) is fixedly connected inside the center of the right side of the mounting housing (81), and a drain pipe (85) and a flushing input pipe (84) are fixedly connected to the inlet and outlet of the reversing valve (83) on the right side, respectively. The right opening of the forward and reverse flushing pipe (82) is connected to the upper interface of the reversing valve (83); The right opening of the forward and reverse flushing pipe 2 (86) is connected to the lower interface of the reversing valve (83).

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