Waste gas treatment nozzle assembly for temperature and pressure reduction device

Abstract

The invention discloses a waste gas treatment nozzle assembly for a temperature and pressure reduction device, and relates to the technical field of waste gas treatment, the waste gas treatment nozzle assembly comprises a waste gas pipe, a fixed shell, an inner cavity, a rotating seat, a telescopic nozzle, a conveying device, a cooling mechanism, a positive and negative flushing mechanism and a driving mechanism; waste gas conveying and treatment liquid conveying are synchronously carried out, a urea solution can be accurately sprayed out of the telescopic spray head to be mixed and react with waste gas, and the concentration of harmful substances in the waste gas is effectively reduced; when the telescopic nozzle needs to be cleaned, the conveying device, the driving mechanism and the forward and reverse flushing mechanism operate cooperatively, cleaning and replacement of the nozzle can be completed without shutdown, and production continuity is guaranteed; the cooling effect is good, the cooling mechanism cools the whole spray head and the single spray head, cooling liquid circularly flows in a specific structure, the reliability and stability of continuous work of the telescopic spray head in work are ensured, the service life of the spray head is prolonged, and the maintenance cost is reduced.

Description

Technical field:

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a nozzle assembly for waste gas treatment used in a temperature and pressure reduction device. Background technology:

[0002] In the industrial production process, many processes will produce high-temperature, high-pressure and harmful waste gas. If these waste gases are discharged directly without effective treatment, they will not only cause serious pollution to the environment, but also may endanger human health. As a key equipment for waste gas pretreatment, the temperature and pressure reduction device can reduce the temperature and pressure of the waste gas, creating favorable conditions for subsequent purification treatment. In the temperature and pressure reduction device, the nozzle assembly of the waste gas treatment plays a vital role, and its performance directly affects the effect and efficiency of the waste gas treatment.

[0003] There are many disadvantages in the traditional exhaust gas treatment nozzle assembly for the temperature and pressure reduction device. On the one hand, during long-term use, the nozzle is easily blocked by impurities, chemical reaction products, etc. in the exhaust gas, resulting in uneven spraying, which in turn affects the full mixing reaction of the exhaust gas and the treatment liquid (such as urea solution), resulting in a reduced removal rate of harmful substances in the exhaust gas. On the other hand, traditional nozzle assemblies usually lack effective cooling measures. When treating high-temperature exhaust gas, the nozzle is easily damaged by overheating, shortening the service life of the equipment and increasing maintenance costs. At the same time, once the nozzle fails and needs to be cleaned or repaired, it is often necessary to shut down the operation, which will cause production interruptions and affect the normal production operations of the enterprise.

[0004] In order to solve the problems existing in the above-mentioned traditional nozzle assemblies and meet the increasingly stringent environmental protection requirements and the continuity needs of industrial production, it is urgent to develop a nozzle assembly for waste gas treatment of a temperature and pressure reduction device which has a reasonable and simple structure, low production cost, easy installation, and good cleaning and cooling functions. Summary of the invention:

[0005] The purpose of the present invention is to provide a nozzle assembly for waste gas treatment in a temperature and pressure reduction device in order to solve the above-mentioned problems, which solves the problems that the nozzle of the traditional nozzle assembly is easily blocked, resulting in uneven spraying, the lack of effective cooling measures makes the nozzle easily overheated and damaged, and the maintenance and cleaning require shutdown, thus affecting production continuity.

[0006] In order to solve the above problems, the present invention provides a technical solution: a nozzle assembly for waste gas treatment for a temperature reduction and pressure reduction device, comprising an exhaust pipe, and also comprising a fixed shell, 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; the top of the exhaust pipe is fixedly connected to a fixed shell; an inner cavity is provided inside the fixed shell, and a rotating seat is movably connected inside the inner cavity; there are several telescopic nozzles, and the several telescopic nozzles are respectively arranged inside the four sides of the rotating seat; the conveying device is arranged on the upper left side of the fixed shell, 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 arranged inside the rotating seat and on the lower left side of the fixed shell; the driving mechanism is arranged in the center of the upper side of the fixed shell, 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 arranged on the right side of the fixed shell, 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 specific structure of the telescopic nozzle includes a nozzle tube, a guide hole one, a spring and a nozzle hole; the guide hole one is vertically arranged inside the edge of the rotating seat; the outside of the nozzle tube is vertically movably connected to the inside of the guide hole one, a nozzle hole is arranged in the center of the nozzle tube, and a spring is arranged between the upper step surface of the nozzle tube and the lower step surface of the guide hole.

[0008] Preferably, the nozzle pipe is externally T-shaped.

[0009] Preferably, the specific structure of the conveying device includes a fixed seat, 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 opened on the upper left side of the inner cavity; the bottom of the fixed seat is fixedly connected to the upper left side of the fixed shell, and a vertical guide hole second is provided inside the central left side of the fixed seat, and the lower opening of the second guide hole is connected with the upper opening of the connecting hole; the guide groove is vertically opened on the right side of the second guide hole, and the 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 central inner side of the second guide hole; the outer side of the movable conveying pipe is movably connected to the inner side of the second guide hole, the central inner side of the movable conveying pipe is movably connected to the outer side of the fixed conveying pipe, and the upper right side of the movable conveying pipe is fixedly connected to a movable block; the outer side of the movable block is vertically movably connected to the inner side of the guide groove, and the top of the movable block is fixedly connected to the end of the telescopic rod on the lower side of the cylinder.

[0010] Preferably, the outer portion of the lower side of the movable delivery pipe is conical in shape.

[0011] Preferably, the specific structure of the cooling mechanism includes an input water pipe, a connecting hole 1, a spiral hole 1, a nozzle cooling device, a column, an output water pipe, a connecting hole 2, an inner ring groove and a connecting hole 3; the spiral hole 1 is arranged inside the periphery of the rotating seat; the upper outer side of the input water pipe is fixedly connected to the central inner side of the upper side of the inner cavity; the connecting hole 1 is arranged inside the upper left side of the rotating seat, the left side of the connecting hole 1 is connected to the upper side of the spiral hole 1, and the upper inner side of the connecting hole 1 is movably connected to the lower outer side of the input water pipe; the lower outer side of the column is fixedly connected to the central inner side of the lower side of the inner cavity, and the column The upper outer part is movably connected with the central inner part of the lower side of the rotating seat, and a connecting hole 2 is provided inside the column, and an output water pipe is fixedly connected to the lower rear opening of the connecting hole 2; the nozzle cooling device is fixedly connected to the lower left opening of the fixed shell, and the upper inlet of the nozzle cooling device is connected with the interior of the connecting hole 1, and the right side outlet of the nozzle cooling device is connected with the interior of the connecting hole 2; the inner ring groove is provided on the central inner wall of the lower side of the rotating seat, and the right side of the inner ring groove is connected with the lower right outlet of the spiral hole 1 through the connecting hole 3, and the interior of the inner ring groove is connected with the upper opening of the connecting hole 2.

[0012] Preferably, the specific structure of the nozzle cooling device includes a heat conductive block, spiral hole two, guide hole three, connecting tube one, connecting hole four, end face ring groove and connecting tube two; the heat conductive block is fixedly connected to the lower left side of the fixed seat, guide hole three is provided in the center of the heat conductive block, spiral hole two is provided in the center of the heat conductive block, and connecting tube one and connecting tube two are fixedly connected to the openings on both sides of spiral hole two respectively; the end face ring groove is arranged around the center of the bottom surface of the rotating seat, the lower left side of the end face ring groove is connected to the right side opening of connecting tube one, and the upper left side of the end face ring groove is connected to the inside of connecting hole one through connecting hole four; the right side of connecting tube two is connected to the inside of connecting hole two.

[0013] Preferably, the specific structure of the driving mechanism includes a servo motor, a driving 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 seat, and the driving gear is fixedly connected to the output shaft on the lower side of the servo motor; the central interior of the driven gear is fixedly connected to the outer side of the upper side of the rotating seat, and the driven gear is connected to the driving gear.

[0014] Preferably, the specific structure of the forward and reverse flushing mechanism includes an installation shell, a forward and reverse flushing pipe 1, a reversing valve, a flushing input pipe, a drain pipe and a forward and reverse flushing pipe 2; the installation shell is fixedly connected to the right side of the fixed shell, a reversing valve is fixedly connected to the central interior of the right side of the installation shell, and a drain pipe and a flushing input pipe are fixedly connected to the right inlet and outlet of the reversing valve respectively; the forward and reverse flushing pipe 1 is fixedly connected to the interior of the upper side of the installation shell, the left opening of the forward and reverse flushing pipe 1 is connected to the upper right side of the inner cavity, and the right opening of the forward and reverse flushing pipe 1 is connected to the upper interface of the reversing valve; the forward and reverse flushing pipe 2 is fixedly connected to the interior of the lower side of the installation shell, the left opening of the forward and reverse flushing pipe 2 is connected to the lower right side of the inner cavity, and the right opening of the forward and reverse flushing pipe 2 is connected to the lower interface of the reversing valve.

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

[0016] (2) The present invention has a convenient nozzle cleaning function. When the telescopic nozzle needs to be cleaned, the conveying device, the driving mechanism and the forward and reverse flushing mechanism work together to complete the cleaning and replacement of the nozzle without stopping the machine, thereby 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 in a specific structure, ensuring the reliability and stability of the continuous operation of the telescopic nozzle, extending the service life of the nozzle and reducing maintenance costs. Description of the drawings:

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

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

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

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

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

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

[0024] Figure 7 It is a structural diagram of the driving mechanism.

[0025] Figure 8 It is a structural diagram of the forward and reverse flushing mechanism.

[0026] 1-exhaust pipe; 2-fixed shell; 3-inner cavity; 4-rotating seat; 5-telescopic nozzle; 6-conveying device; 7-cooling mechanism; 8-positive and negative flushing mechanism; 9-driving mechanism; 51-nozzle pipe; 52-guide hole 1; 53-spring; 54-nozzle hole; 61-fixed seat; 62-movable conveying pipe; 63-guide hole 2; 64-fixed conveying pipe; 65-cylinder; 66-guide groove; 67-movable block; 68-connecting hole; 71-input water pipe; 72-connecting hole 1; 73-spiral hole 1; 74-nozzle cooling Cooling device; 75-column; 76-water output pipe; 77-connecting hole 2; 78-inner ring groove; 79-connecting hole 3; 741-heat conducting block; 742-spiral hole 2; 743-guide hole 3; 744-connecting pipe 1; 745-connecting hole 4; 746-end face ring groove; 747-connecting pipe 2; 91-servo motor; 92-driving gear; 93-driven gear; 81-installation housing; 82-forward and reverse flushing pipe 1; 83-reversing valve; 84-flushing input pipe; 85-drain pipe; 86-forward and reverse flushing pipe 2. Specific implementation method:

[0027] like Figure 1 and Figure 2 As shown, this specific embodiment adopts the following technical scheme: a nozzle assembly for waste gas treatment for a temperature reduction and pressure reduction device, comprising a waste gas pipe 1, and also comprising a fixed shell 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 top of the waste gas pipe 1 is fixedly connected to a fixed shell 2; an inner cavity 3 is provided inside the fixed shell 2, and a rotating seat 4 is movably connected inside the inner cavity 3; there are several telescopic nozzles 5, and several telescopic nozzles 5 are respectively arranged inside the rotating seat 4; the conveying device 6 is arranged on the upper left side of the fixed shell 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 arranged inside the rotating seat 4 and on the lower left side of the fixed shell 2; the driving mechanism 9 is arranged in the center of the upper side of the fixed shell 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 arranged on the right side of the fixed shell 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 arranged inside the edge of the rotating seat 4; the outside of the nozzle tube 51 is vertically movably connected to the inside of the guide hole 52, a nozzle hole 54 is arranged in the center of the nozzle tube 51, and a spring 53 is arranged between the upper step surface of the nozzle tube 51 and the lower step surface of the guide hole 52.

[0029] The nozzle pipe 51 is externally T-shaped.

[0030] like Figure 4 As shown, the specific structure of the conveying device 6 includes a fixed seat 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 opened on the upper left side of the inner cavity 3; the bottom of the fixed seat 61 is fixedly connected to the upper left side of the fixed shell 2, and a vertical second guide hole 63 is provided inside the left side of the center of the fixed seat 61, and 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 opened 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 outer upper side of the fixed delivery pipe 64 is fixedly connected to the inner central part of the upper side of the guide hole 63; the outer side of the movable delivery pipe 62 is movably connected to the inner part of the guide hole 63, the inner central part of the movable delivery pipe 62 is movably connected to the outer side of the fixed delivery pipe 64, and a movable block 67 is fixedly connected to the upper right side of the movable delivery pipe 62; the outer side of the movable block 67 is vertically movably connected to the inner part of the guide groove 66, and the top of the movable block 67 is fixedly connected to the end of the telescopic rod at the lower side of the cylinder 65.

[0031] The outer portion of the lower side of the movable delivery pipe 62 is in a cone shape.

[0032] like Figure 5As shown, the specific structure of the cooling mechanism 7 includes an input water pipe 71, a connecting hole 1 72, a spiral hole 1 73, a nozzle cooling device 74, a column 75, an output water pipe 76, a connecting hole 2 77, an inner ring groove 78 and a connecting hole 3 79; the spiral hole 1 73 is arranged inside the periphery of the rotating seat 4; the upper outer side of the input water pipe 71 is fixedly connected to the central inner part of the upper side of the inner cavity 3; the connecting hole 1 72 is arranged inside the upper left side of the rotating seat 4, the left side of the connecting hole 1 72 is connected to the upper side of the spiral hole 1 73, and the upper inner part of the connecting hole 1 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 central inner part of the lower side of the inner cavity 3, and the column The outer part of the upper side of the body 75 is movably connected to the central inner part of the lower side of the rotating seat 4. A connecting hole 2 77 is provided inside the column 75, and an output water pipe 76 is fixedly connected to the lower rear opening of the connecting hole 2 77; the nozzle cooling device 74 is fixedly connected to the lower left opening of the fixed shell 2, the upper inlet of the nozzle cooling device 74 is connected to the interior of the connecting hole 1 72, and the right side outlet of the nozzle cooling device 74 is connected to the interior of the connecting hole 2 77; the inner annular groove 78 is provided on the central inner wall of the lower side of the rotating seat 4, and the right side of the inner annular groove 78 is connected to the lower right outlet of the spiral hole 1 73 through the connecting hole 3 79, and the interior of the inner annular groove 78 is connected to the upper opening of the connecting hole 2 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 2 742, a guide hole 3 743, a connecting pipe 1 744, a connecting hole 4 745, an end face annular groove 746 and a connecting pipe 2 747; the heat conducting block 741 is fixedly connected to the lower left side of the fixed seat 61, and a guide hole 3 743 is provided in the central interior of the heat conducting block 741, and a spiral hole 2 742 is provided in the central periphery of the heat conducting block 741, and a connecting pipe 1 744 and a connecting pipe 2 747 are fixedly connected to the openings on both sides of the spiral hole 2 742 respectively; the end face annular groove 746 is provided around the central periphery of the bottom surface of the rotating seat 4, and the lower left side of the end face annular groove 746 is connected to the right opening of the connecting pipe 1 744, and the upper left side of the end face annular groove 746 is connected to the inside of the connecting hole 1 72 through the connecting hole 4 745; the right side of the connecting pipe 2 747 is connected to the inside of the connecting hole 2 77.

[0034] like Figure 7 As shown, the specific structure of the driving mechanism 9 includes a servo motor 91, a driving 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 seat 61, and the driving gear 92 is fixedly connected to the output shaft on the lower side of the servo motor 91; the central inner part of the driven gear 93 is fixedly connected to the outer part of the upper side of the rotating seat 4, and the driven gear 93 is connected to the driving gear 92.

[0035] like Figure 8As shown, the specific structure of the forward and reverse flushing mechanism 8 includes an installation shell 81, a forward and reverse flushing pipe 1 82, a reversing valve 83, a flushing input pipe 84, a drain pipe 85 and a forward and reverse flushing pipe 2 86; the installation shell 81 is fixedly connected to the right side of the fixed shell 2, and a reversing valve 83 is fixedly connected to the central interior of the right side of the installation shell 81, and a drain pipe 85 and a flushing input pipe 84 are fixedly connected at the right inlet and outlet of the reversing valve 83 respectively; the forward and reverse flushing pipe 1 82 is fixedly connected to the upper side of the installation shell 81, the left opening of the forward and reverse flushing pipe 1 82 is connected to the upper right side of the inner cavity 3, and the right opening of the forward and reverse flushing pipe 1 82 is connected to the upper side interface of the reversing valve 83; the forward and reverse flushing pipe 2 86 is fixedly connected to the lower side of the installation shell 81, the left opening of the forward and reverse flushing pipe 2 86 is connected to the lower right side of the inner cavity 3, and the right opening of the forward and reverse flushing pipe 2 86 is connected to the lower side interface of the reversing valve 83.

[0036] The use state of the present invention is as follows: the present invention 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 temperature reduction and pressure reduction device, each component works in coordination and closely cooperates. The waste gas is transported by the waste gas pipe 1, and the transport device 6 operates synchronously. The fixed transport pipe 64 introduces the urea solution, and the telescopic rod of the cylinder 65 is extended to push the movable block 67 and the movable transport pipe 62 to move downward in the guide hole 63, so that the fixed transport pipe 64 is connected with the movable transport pipe 62, and the urea solution passes through the connecting hole 68 and the inner cavity 3, and is discharged from the left telescopic nozzle 5. The exhaust gas is sprayed out from the nozzle hole 54 in the nozzle pipe 51, mixed with the exhaust gas and reacted, so as to reduce the concentration of harmful substances in the exhaust gas. When the telescopic nozzle 5 on the left side needs to be cleaned, the conveying device 6 starts to operate, the cylinder 65 shortens, drives the movable block 67 to move up, and then moves the movable conveying pipe 62 up and separates from the telescopic nozzle 5 on the left side. Subsequently, the driving mechanism 9 is started, and the servo motor 91 runs. The output shaft on the lower side drives the driving gear 92 to rotate, and the driving gear 92 is meshed with the driven gear 93, driving the rotating seat 4 to rotate, so that the telescopic nozzle 5 originally located on the left side rotates to the right side. The forward and reverse flushing mechanism 8 is positioned on the side. At this time, the forward and reverse flushing mechanism 8 starts to work and performs 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, so that the flushing liquid flows alternately in the forward and reverse flushing pipe 1 82 and the forward and reverse flushing pipe 2 86 to thoroughly clean the telescopic nozzle 5. At the same time, during the rotation of the rotating seat 4, the new or cleaned telescopic nozzle 5 will rotate to the working position to continue the exhaust gas treatment work. During the whole working process, the cooling mechanism 7 plays an important role. The cooling mechanism 7 The input water pipe 71 inputs the coolant, and the coolant enters the spiral hole 1 73 through the connecting hole 1 72 to cool the rotating seat 4 around. At the same time, the coolant circulates in the nozzle cooling device 74 to cool the telescopic nozzle 5 in operation separately. The heat-conducting block 741 in the nozzle cooling device 74 transfers heat to the coolant, and the coolant flows in the spiral hole 2 742, and circulates through the connecting pipe 1 744, the connecting hole 4 745, the end face annular groove 746 and the connecting pipe 2 747, thereby ensuring the reliability and stability of the continuous operation of the telescopic nozzle 5 in operation.

[0037] The control method in the present invention is to start manually or control through existing automation technology. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will no longer explain the control method and wiring layout in detail.

[0038] In the description of the invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention.

[0039] In the invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the invention according to the specific circumstances.

[0040] The above shows and describes 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 above embodiments and descriptions are only for explaining the principles of the invention. Without departing from the spirit and scope of the invention, the invention may have various changes and improvements, which shall fall within the scope of the invention to be protected. The scope of protection of the invention shall be defined by the attached claims and their equivalents.

Claims

1. A nozzle assembly for treating waste gas for a temperature and pressure reduction device, comprising a waste gas pipe (1), characterized in that: It also includes a fixed shell (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 top of the exhaust pipe (1) is fixedly connected to a fixed shell (2); An inner cavity (3) is provided inside the fixed shell (2), and a rotating seat (4) is movably connected inside the inner cavity (3); There are a plurality of the telescopic spray heads (5), and the plurality of the telescopic spray heads (5) are respectively arranged inside the periphery of the rotating seat (4); The conveying device (6) is arranged 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 arranged inside the rotating seat (4) and on the lower left side of the fixed shell (2); The driving mechanism (9) is arranged at 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 part of the upper side of the rotating seat (4); The forward and reverse flushing mechanism (8) is arranged 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 spray head (5) on the right side.

2. The nozzle assembly for waste gas treatment for a temperature and pressure reduction device according to claim 1, characterized in that: The specific structure of the telescopic spray head (5) includes a spray head tube (51), a guide hole 1 (52), a spring (53) and a spray head hole (54); The guide hole 1 (52) is vertically arranged inside the edge of the rotating seat (4); The outside of the nozzle pipe (51) is vertically movably connected to the inside of the guide hole (52); a nozzle hole (54) is provided in the center of the nozzle pipe (51); and a spring (53) is provided between the upper step surface of the nozzle pipe (51) and the lower step surface of the guide hole (52).

3. The nozzle assembly for waste gas treatment for a temperature and pressure reduction device according to claim 2, characterized in that: The nozzle pipe (51) is externally T-shaped.

4. The nozzle assembly for waste gas treatment for a temperature and pressure reduction device according to claim 1, characterized in that: The specific structure of the conveying device (6) includes a fixed seat (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 communication hole (68) is opened on the upper left side of the inner cavity (3); The bottom of the fixing seat (61) is fixedly connected to the upper left side of the fixing housing (2), and a second vertical guide hole (63) is provided inside the central left side of the fixing seat (61), and 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 opened on the right side of the second 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 portion of the fixed delivery pipe (64) is fixedly connected to the central inner portion of the upper side of the second guide hole (63); The outside of the movable delivery pipe (62) is movably connected to the inside of the second guide hole (63), the central inside of the movable delivery pipe (62) is movably connected to the outside of the fixed delivery pipe (64), and a movable block (67) is fixedly connected to the upper right side of the movable delivery pipe (62); The outside 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 at the lower side of the cylinder (65).

5. The nozzle assembly for waste gas treatment for a temperature and pressure reduction device according to claim 4, characterized in that: The lower outer side of the movable delivery pipe (62) is in a cone shape.

6. The nozzle assembly for waste gas treatment for a temperature and pressure reduction device according to claim 1, characterized in that: The specific structure of the cooling mechanism (7) includes an input water pipe (71), a connecting hole 1 (72), a spiral hole 1 (73), a nozzle cooling device (74), a column (75), an output water pipe (76), a connecting hole 2 (77), an inner ring groove (78) and a connecting hole 3 (79); The spiral hole 1 (73) is arranged inside the periphery of the rotating seat (4); The upper outer portion of the water input pipe (71) is fixedly connected to the central inner portion of the upper side of the inner cavity (3); The connection hole 1 (72) is arranged inside the upper left side of the rotating seat (4), the left side of the connection hole 1 (72) is connected to the upper side of the spiral hole 1 (73), and the upper side of the connection hole 1 (72) is movably connected to the lower side of the input water pipe (71); The lower outer portion of the column (75) is fixedly connected to the lower central inner portion of the inner cavity (3); the upper outer portion of the column (75) is movably connected to the lower central inner portion of the rotating seat (4); a second connection hole (77) is provided inside the column (75); and an output water pipe (76) is fixedly connected to the lower rear opening of the second connection hole (77); The nozzle cooling device (74) is fixedly connected to the lower left opening of the fixed shell (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 annular groove (78) is formed on the central inner wall at the lower side of the rotating seat (4); the right side of the inner annular groove (78) is connected to the lower right outlet of the spiral hole (73) through the connecting hole (79); the interior of the inner annular groove (78) is connected to the upper opening of the connecting hole (77).

7. The nozzle assembly for waste gas treatment for a temperature and pressure reduction device according to claim 6, characterized in that: The specific structure of the nozzle cooling device (74) includes a heat conducting block (741), a second spiral hole (742), a third guide hole (743), a first connecting pipe (744), a fourth connecting hole (745), an end face annular groove (746) and a second connecting pipe (747); The heat conducting block (741) is fixedly connected to the lower left side of the fixing seat (61); a guide hole three (743) is provided in the center of the heat conducting block (741); spiral holes two (742) are provided in the center and around the center of the heat conducting block (741); and connecting pipe one (744) and 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 provided 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 1 (744); the upper left side of the end face annular groove (746) is connected to the inside of the connecting hole 1 (72) through the connecting hole 4 (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 for a temperature and pressure reduction device according to claim 1, characterized in that: The specific structure of the driving mechanism (9) includes a servo motor (91), a driving 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 fixing seat (61), and a driving gear (92) is fixedly connected to the output shaft at the lower side of the servo motor (91); The central interior of the driven gear (93) is fixedly connected to the outer portion of the upper side of the rotating seat (4), and the driven gear (93) is connected to the driving gear (92).

9. The nozzle assembly for waste gas treatment for a temperature and pressure reduction device according to claim 1, characterized in that: The specific structure of the forward and reverse flushing mechanism (8) includes a mounting housing (81), a forward and reverse flushing pipe 1 (82), a reversing valve (83), a flushing input pipe (84), a sewage discharge pipe (85) and a forward and reverse flushing pipe 2 (86); The mounting housing (81) is fixedly connected to the right side of the fixed housing (2); a reversing valve (83) is fixedly connected to the central interior of the right side of the mounting housing (81); and a sewage discharge pipe (85) and a flushing input pipe (84) are respectively fixedly connected to the inlet and outlet of the right side of the reversing valve (83); The forward and reverse flushing pipe (82) is fixedly connected to the upper interior of the mounting shell (81), the left opening of the forward and reverse flushing pipe (82) is connected to the upper right side of the inner cavity (3), and the right opening of the forward and reverse flushing pipe (82) is connected to the upper interface of the reversing valve (83); The forward and reverse flushing pipe 2 (86) is fixedly connected to the lower side of the mounting shell (81), the left opening of the forward and reverse flushing pipe 2 (86) is connected to the lower right side of the inner cavity (3), and the right opening of the forward and reverse flushing pipe 2 (86) is connected to the lower side interface of the reversing valve (83).

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