An automatic spraying device for flue gas treatment desulfurization agent

Abstract

The invention discloses an automatic spraying device for flue gas treatment desulfurization agent, comprising an upper shell, a lower shell, a connecting frame and a sealing ring, wherein the sealing ring is arranged between the upper shell and the lower shell, and the upper shell and the lower shell at the upper and lower ends of the sealing ring are fixedly connected by a connecting frame with a concave structure. In this device, a wet nozzle and a dry nozzle are arranged at intervals on the upper end of the upper shell, which can well combine dry and wet desulfurization, facilitate selection according to actual needs, and improve the efficiency of flue gas desulfurization. The opening degree of the control plate can be controlled by twisting the ring, so as to achieve the purpose of changing the automatic spraying amount, facilitate change at any time according to actual needs, will not cause waste, and has a wide range of application. The ends of the wet nozzle and the dry nozzle are both provided with a structure that can diffuse the sprayed desulfurization gas or powder, and the diffusion purpose can be achieved without adding a high-pressure pump. The spraying range is wide, energy is saved, the desulfurization efficiency is improved, and it is suitable for popularization.

Description

Technical Field

[0001] The invention relates to the technical field of automatic spraying devices for flue gas treatment and desulfurization agents, in particular to an automatic spraying device for flue gas treatment and desulfurization agents. Background Art

[0002] Flue gas desulfurization refers to the removal of sulfur oxides (SO2 and SO3) from flue gas or other industrial waste gas. SO2 in flue gas is acidic in nature and can be removed from flue gas by reacting with appropriate alkaline substances. The most commonly used alkaline substances for flue gas desulfurization are limestone, quicklime and slaked lime. Limestone is abundant and relatively cheap. Quicklime and slaked lime are both made by heating limestone. Other alkaline substances such as sodium carbonate (soda ash), magnesium carbonate and ammonia are sometimes used. The alkaline substances used react with SO2 in the flue gas to produce a mixture of sulfites and sulfates. The ratio between sulfites and sulfates depends on the process conditions. In some processes, all sulfites are converted into sulfates. The reaction between SO2 and alkaline substances occurs either in an alkaline solution (wet flue gas desulfurization technology) or on the wet surface of a solid alkaline substance (dry or semi-dry flue gas desulfurization technology), but these flue gas desulfurization methods still have the following disadvantages in actual use:

[0003] 1. In the prior art, dry, semi-dry or wet flue gas desulfurization technology is usually used for desulfurization. The dry and wet flue gas desulfurization technologies cannot be well combined, and the desulfurization effect is low;

[0004] 2. In the prior art, both dry and wet desulfurization have the disadvantage of being difficult to clean internally. After long-term use, there will be a lot of sediment inside the desulfurization device, which will reduce the flue gas desulfurization efficiency;

[0005] 3. The automatic spraying device for flue gas desulfurization often sprays a fixed amount. One spraying device corresponds to one desulfurization device. It cannot be changed at any time according to actual needs, and its scope of application is small. Summary of the invention

[0006] The purpose of the present invention is to provide an automatic spraying device for flue gas treatment desulfurization agent to solve the problems raised in the above background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatic spraying device for flue gas treatment desulfurization agent, comprising an upper shell, a lower shell, a connecting frame and a sealing ring, wherein the sealing ring is arranged between the upper shell and the lower shell, and the upper shell and the lower shell at the upper and lower ends of the sealing ring are fixedly connected by a connecting frame with a concave structure, and No. 2 pins are arranged at the upper and lower ends of the sealing ring, and the sealing ring is divided into a front half sealing ring and a rear half sealing ring, and the right ends of the front half sealing ring and the rear half sealing ring are connected by a fixing plate, and the fixing plate is fixedly arranged on the sealing ring, and the fixing plate on the front half sealing ring and the fixing plate on the rear half sealing ring are fixed by screws, and a moving rod is arranged on the left side of the sealing ring, and a vertically arranged cleaning rod is fixedly arranged at one end of the moving rod, and a cleaning brush is fitted on the left side of the cleaning rod, and the cleaning brush is arranged in contact with the inner wall of the upper shell and the inner wall of the lower shell, and a smoke inlet and a cleaning door are respectively arranged at the lower left end and the lower right end of the lower shell, and the smoke inlet is connected to the inner and outer ends of the lower shell, and the lower end of the cleaning door is hinged on the lower The upper end of the cleaning door is engaged with the lower shell body, and a smoke exhaust port is provided at the upper right end of the upper shell body, and the smoke exhaust port is connected to the inner and outer ends of the upper shell body. A wet nozzle and a dry nozzle are also connected at the upper end of the upper shell body, and the wet nozzle and the dry nozzle are arranged at intervals. The wet nozzle and the dry nozzle are provided with a control rod at one end of the upper surface of the upper shell body, and the control rod is a cylindrical rod-shaped structure, and a torsion ring is fixed at the right end of the control rod, and a control plate is fixed at the left end of the control rod. A throat area is provided at the lower end of the wet nozzle, and a throat area is provided at the lower end of the wet nozzle. The pipe area gradually widens from the middle position to the upper and lower ends. A rotating seat is provided on the wet nozzle at the outer end of the throat area. The lower end of the rotating seat is provided with spray holes distributed in a circular array. The two sides of the upper end of the rotating seat are engaged with the lower end of the wet nozzle, and balls are also provided at the engaging position of the rotating seat and the wet nozzle. The balls are movably embedded on the inner side of the upper end of the rotating seat. A support plate is provided at the lower end of the dry nozzle. A rotating shaft is penetrated through the middle position of the support plate. A fan blade is fixed at the lower end of the rotating shaft. The fan blade is arranged around the rotating shaft in a circle, and a No. 1 pin is also provided inside the rotating shaft.

[0008] Preferably, the upper shell and the lower shell are both cylindrical structures, and the upper shell is arranged above the lower shell.

[0009] Preferably, the sealing ring is in a circular ring structure, and the upper and lower ends of the sealing ring are movably fitted on the lower surface of the upper shell and the upper surface of the lower shell respectively.

[0010] Preferably, the No. 2 pin is fixedly connected to the inner end of the sealing ring by a spring, and the end of the No. 2 pin away from the sealing ring is a hemispherical structure. The No. 2 pin at one end of the hemispherical structure is engaged in the circular grooves inside the upper shell and the lower shell, and the upper and lower circular grooves are respectively arranged around the lower surface of the upper shell and the upper surface of the lower shell.

[0011] Preferably, the movable rod is in a rectangular rod-shaped structure, and two ends of the movable rod are movably fitted to the front half fixing plate and the rear half fixing plate respectively.

[0012] Preferably, the amount control plate is a circular plate structure, and the amount control plates in the two nozzles correspond to the inner diameter of the wet nozzle and the inner diameter of the dry nozzle respectively.

[0013] Preferably, the support plate is a circular plate-shaped structure, the right end of the support plate is arranged through the right side of the dry nozzle, and a sealing edge is fixedly provided at one end of the support plate that passes through the dry nozzle. The sealing edge is arranged in contact with the lower end surface of the dry nozzle, and the sealing edge and the dry nozzle are fixed by screws.

[0014] Preferably, the No. 1 pin is in a "concave" shaped structure, and the No. 1 pin is fixedly connected to the rotating shaft by a spring. The upper and lower ends of the No. 1 pin are both arranged through the rotating shaft, the upper end of the No. 1 pin passes through one end of the rotating shaft and is arranged in contact with the upper surface of the support plate, and the lower end of the No. 1 pin passes through one end of the rotating shaft and is arranged below the fan blade.

[0015] Compared with the prior art, the invention has the following advantages:

[0016] 1. In this device, wet nozzles and dry nozzles are arranged at intervals on the upper end of the upper shell, which can well combine dry and wet desulfurization, facilitate selection according to actual needs, and improve the efficiency of flue gas desulfurization;

[0017] 2. In this device, cleaning brushes are fitted on the inner wall of the upper shell and the inner wall of the lower shell. The cleaning brushes can be controlled to move by the cleaning rod and the moving rod, which can remove the sediment inside the desulfurization device, facilitate cleaning, and improve the efficiency of flue gas desulfurization;

[0018] 3. A volume control plate is installed inside the upper end of the wet nozzle and the dry nozzle. The opening degree of the volume control plate can be controlled by twisting the ring to achieve the purpose of changing the automatic spraying volume. It is convenient to change at any time according to actual needs without causing waste. It has a wide range of applications. The ends of the wet nozzle and the dry nozzle are both equipped with a structure that can diffuse the sprayed desulfurization gas or powder. The purpose of diffusion can be achieved without adding a high-pressure pump. The spraying range is wide, energy is saved, and the desulfurization efficiency is improved. It is suitable for promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the wet type sprinkler structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the dry type sprinkler structure of the present invention;

[0022] Figure 4This is a schematic diagram of the structure of the No. 2 pin of the present invention;

[0023] Figure 5 This is a schematic diagram of the cleaning rod structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the sealing ring structure of the present invention;

[0025] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of area A in the middle.

[0026] In the figure: 1 upper shell, 11 circular groove, 2 lower shell, 21 cleaning door, 3 smoke exhaust port, 4 smoke inlet, 5 connecting frame, 6 wet nozzle, 61 rotating seat, 62 throat area, 63 ball, 64 control plate, 65 control rod, 66 twist ring, 7 dry nozzle, 71 support plate, 72 through hole, 73 rotating shaft, 74 fan blade, 75 No. 1 pin, 76 sealing edge, 8 cleaning rod, 81 cleaning brush, 82 moving rod, 9 sealing ring, 91 fixing plate, 92 No. 2 pin. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-7The present invention provides a technical solution: an automatic spraying device for flue gas treatment desulfurization agent, comprising an upper shell 1, a lower shell 2, a connecting frame 5 and a sealing ring 9, wherein the upper shell 1 and the lower shell 2 are both cylindrical structures, the upper shell 1 is arranged above the lower shell 2, the sealing ring 9 is arranged between the upper shell 1 and the lower shell 2, the sealing ring 9 is an annular structure, the upper and lower ends of the sealing ring 9 are movably fitted on the lower surface of the upper shell 1 and the upper surface of the lower shell 2 respectively, the upper shell 1 and the lower shell 2 at the upper and lower ends of the sealing ring 9 are fixedly connected by the connecting frame 5 of the concave structure, the upper and lower ends of the sealing ring 9 are both provided with a No. 2 pin 92, the No. 2 pin 92 is fixedly connected to the inner end of the sealing ring 9 by a spring, and the No. 2 pin 92 is away from the sealing ring 9. One end is a hemispherical structure, and the No. 2 pin 92 at one end of the hemispherical structure is engaged in the circular groove 22 inside the upper shell 1 and the lower shell 2. The upper and lower circular grooves 22 are respectively arranged around the lower surface of the upper shell 1 and the upper surface of the lower shell 2. The sealing ring 9 is divided into a front half sealing ring and a rear half sealing ring. The right ends of the front half sealing ring and the rear half sealing ring are connected by a fixing plate 91, and the fixing plate 91 is fixed on the sealing ring 9. The fixing plate 91 on the front half sealing ring and the fixing plate 91 on the rear half sealing ring are fixed by screws. A moving rod 82 is provided on the left side of the sealing ring 9. The moving rod 82 is a rectangular rod-shaped structure. The two ends of the moving rod 82 are respectively movably fitted with the front half fixing plate and the rear half fixing plate. One end inside the moving rod 82 is fixed A vertically arranged cleaning rod 8 is provided, and a cleaning brush 81 is fitted on the left side of the cleaning rod 8. The cleaning brush 81 is arranged to fit the inner wall of the upper shell 1 and the inner wall of the lower shell 2. A smoke inlet 4 and a cleaning door 21 are respectively provided at the lower left end and the lower right end of the lower shell 2. The smoke inlet 4 is connected to the inner and outer ends of the lower shell 2. The lower end of the cleaning door 21 is hinged on the lower shell 2, and the upper end of the cleaning door 21 is snapped on the lower shell 2. A smoke exhaust port 3 is provided at the upper right end of the upper shell 1, and the smoke exhaust port 3 is connected to the inner and outer ends of the upper shell 1. A wet nozzle 6 and a dry nozzle 7 are also connected at the upper end of the upper shell 1. The wet nozzle 6 and the dry nozzle 7 are arranged at intervals. The wet nozzle 6 and the dry nozzle 7 are both provided with a control rod 65 at one end of the upper surface of the upper shell 1, and the control rod 65 is a cylindrical rod-shaped structure. Structure, a torsion ring 66 is fixedly arranged at the right end of the control rod 65, and a control plate 64 is fixedly arranged at the left end of the control rod 65, and the control plate 64 is in a circular plate-shaped structure. The control plates 64 in the two nozzles correspond to the inner diameters of the wet nozzle 6 and the inner diameters of the dry nozzle 7 respectively. A throat area 62 is provided at the lower end of the wet nozzle 6, and the throat area 62 gradually widens from the middle position to the upper and lower ends. A rotating seat 61 is provided on the wet nozzle 6 at the outer end of the throat area 62, and a spray hole distributed in a circular array is provided at the lower end of the rotating seat 61. Both sides of the upper end of the rotating seat 61 are engaged with the lower end of the wet nozzle 6, and a ball 63 is also provided at the engaging position of the rotating seat 61 and the wet nozzle 6, and the ball 63 is movably embedded in the inner side of the upper end of the rotating seat 61. A support plate 71 is provided at the lower end of the dry nozzle 7, and the support plate 71 is in a circular plate-shaped structure.The right end of the support plate 71 is set through the right side of the dry nozzle 7, and the support plate 71 is fixed with a sealing edge 76 at one end that passes through the dry nozzle 7. The sealing edge 76 is set in contact with the lower end surface of the dry nozzle 7. The sealing edge 76 is fixed to the dry nozzle 7 by screws. A rotating shaft 73 is passed through the middle position of the support plate 71. A fan blade 74 is fixed at the lower end of the rotating shaft 73. The fan blade 74 is set around the rotating shaft 73. A No. 1 pin 75 is also provided inside the rotating shaft 73. The No. 1 pin 75 is in a "concave" shape. The No. 1 pin 75 is fixedly connected to the rotating shaft 73 by a spring. The upper and lower ends of the No. 1 pin 75 are set through the rotating shaft 73. The upper end of the No. 1 pin 75 passes through one end of the rotating shaft 73 and is set in contact with the upper surface of the support plate 71. The lower end of the No. 1 pin 75 passes through one end of the rotating shaft 73 and is set below the fan blade 74.

[0029] Working principle: The outer ends of the wet nozzle 6 and the dry nozzle 7 are connected with spraying liquid or powder respectively. Wet desulfurization and dry desulfurization can be selected according to the needs. The flue gas enters through the smoke inlet 4 and is discharged through the smoke outlet 3. The lower end of the wet nozzle 6 is provided with a throat area 62. Since the throat area 62 gradually widens from the middle position to the upper and lower ends, the liquid sprayed from the wet nozzle 6 will accelerate the flow. The high-speed flowing liquid impacts the rotating seat 61, which will cause the rotating seat 61 to rotate at a high speed at the lower end of the wet nozzle 6. When the rotating seat 61 rotates, the liquid medicine is sprayed out from the spray hole in a rotating manner, which expands the spraying range. The ball 63 ensures that the rotating seat 61 can rotate stably and the rotating seat 61 will not be stuck. A through hole 72 is provided on the support plate 71 at the lower end of the dry nozzle 7. The powder is squeezed out from the through hole 72, which will drive the fan blade 74 to rotate. The fan blade 74 spreads the powder and increases the efficiency of flue gas desulfurization. The No. 1 pin 75 enables the shaft 73 to rotate stably on the support plate 71. The control rod 65 is controlled to rotate by the torsion ring 66, so that the control plate 64 can be rotated. When the rotation angle of the control plate 64 changes, the purpose of automatically controlling the spraying amount is achieved. The moving rod 82 is rotated, and the cleaning brush 81 inside the cleaning rod 8 will clean the inner walls of the upper shell 1 and the lower shell 2 for easy cleaning. The cleaning door 21 is opened to discharge the sediment regularly. The sealing ring 9 will also rotate synchronously when the moving rod 82 moves, ensuring the sealing between the upper shell 1 and the lower shell 2. The No. 2 pin 92 on the sealing ring 9 avoids the phenomenon of the sealing ring 9 falling off from the device. When the screws on the fixing plate 91 are removed, the sealing ring 9 can be removed by directly pulling the fixing plate 91, which is convenient for disassembly and assembly. The connecting frame 5 serves to fix the upper shell 1 on the lower shell 2, avoiding the phenomenon that the upper shell 1 presses the moving rod 82 and the sealing ring 9, and the moving rod 82 and the sealing ring 9 can move smoothly, which is suitable for promotion.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic spraying device for flue gas treatment desulfurization agent, comprising an upper shell (1), a lower shell (2), a connecting frame (5) and a sealing ring (9), characterized in that: The sealing ring (9) is arranged between the upper shell (1) and the lower shell (2). The upper shell (1) and the lower shell (2) at the upper and lower ends of the sealing ring (9) are fixedly connected by a connecting frame (5) with a concave structure. The upper and lower ends of the sealing ring (9) are both provided with a No. 2 pin (92). The sealing ring (9) is divided into a front half sealing ring and a rear half sealing ring. The front half sealing ring and the right end of the rear half sealing ring are connected by a fixing plate (91). The fixing plate (91) is fixedly arranged on the sealing ring (9). The fixing plate (91) on the front half sealing ring and the fixing plate (91) on the rear half sealing ring are fixed by screws. A moving rod (82) is provided on the left side of the sealing ring (9). A vertical fixing rod (82) is fixedly arranged at one end inside the moving rod (82). A cleaning rod (8) is provided, and a cleaning brush (81) is provided on the left side of the cleaning rod (8), and the cleaning brush (81) is provided on the inner wall of the upper shell (1) and the inner wall of the lower shell (2). The lower left end and the lower right end of the lower shell (2) are provided with a smoke inlet (4) and a cleaning door (21) respectively, and the smoke inlet (4) is connected to the inner and outer ends of the lower shell (2). The lower end of the cleaning door (21) is hinged on the lower shell (2), and the upper end of the cleaning door (21) is engaged with the lower shell (2). The upper right end of the upper shell (1) is provided with a smoke exhaust port (3), and the smoke exhaust port (3) is connected to the inner and outer ends of the upper shell (1). The upper end of the upper shell (1) is also connected to a wet nozzle (6) and a dry nozzle (7), and the wet nozzle (6) and The dry nozzles (7) are arranged at intervals. The wet nozzles (6) and the dry nozzles (7) are both provided with a control rod (65) at one end of the upper surface of the upper shell (1). The control rod (65) is a cylindrical rod-shaped structure. A torsion ring (66) is fixedly provided at the right end of the control rod (65). A control plate (64) is fixedly provided at the left end of the control rod (65). A throat area (62) is provided at the lower end of the wet nozzle (6). The throat area (62) gradually widens from the middle position to the upper and lower ends. A rotating seat (61) is provided on the wet nozzle (6) at the outer end of the throat area (62). Spray holes distributed in a circular array are provided at the lower end of the rotating seat (61). Both sides of the upper end of the rotating seat (61) are engaged with the lower end of the wet nozzle (6), and the rotating seat (61) and the wet nozzle (6) are connected to each other. ) is also provided at the engaging position, and the ball (63) is movably embedded in the inner side of the upper end of the rotating seat (61); a support plate (71) is provided at the lower end of the dry nozzle (7); a rotating shaft (73) is penetrated through the middle position of the support plate (71); a fan blade (74) is fixedly provided at the lower end of the rotating shaft (73); the fan blade (74) is arranged around the rotating shaft (73) in a circle, and a No. 1 pin (75) is also provided inside the rotating shaft (73); it is characterized in that: the upper shell (1) and the lower shell (2) are both cylindrical structures, and the upper shell (1) is arranged above the lower shell (2); the sealing ring (9) is annular structure, and the upper and lower ends of the sealing ring (9) are movably fitted on the lower surface of the upper shell (1) and the upper surface of the lower shell (2) respectively.

2. The automatic spraying device for flue gas treatment and desulfurization agent according to claim 1 is characterized in that: The No. 2 pin (92) is fixedly connected to the inner end of the sealing ring (9) via a spring. The end of the No. 2 pin (92) away from the sealing ring (9) is in a hemispherical structure. The No. 2 pin (92) at one end of the hemispherical structure is engaged in circular grooves (22) inside the upper shell (1) and the lower shell (2). The upper and lower circular grooves (22) are respectively arranged around the lower surface of the upper shell (1) and the upper surface of the lower shell (2).

3. The automatic spraying device for flue gas treatment and desulfurization agent according to claim 1 is characterized in that: The movable rod (82) is in the form of a rectangular rod, and two ends of the movable rod (82) are movably fitted to the fixing plate (91) on the front half sealing ring and the fixing plate (91) on the rear half sealing ring.

4. The automatic spraying device for flue gas treatment and desulfurization agent according to claim 1 is characterized in that: The volume control plate (64) is in a circular plate-shaped structure, and the volume control plates (64) in the two nozzles correspond to the inner diameter of the wet nozzle (6) and the inner diameter of the dry nozzle (7), respectively.

5. The automatic spraying device for flue gas treatment and desulfurization agent according to claim 1 is characterized in that: The support plate (71) is in a circular plate-shaped structure. The right end of the support plate (71) is arranged to penetrate the right side of the dry-type nozzle (7). One end of the support plate (71) that penetrates the dry-type nozzle (7) is fixedly provided with a sealing edge (76). The sealing edge (76) is arranged to fit the lower end surface of the dry-type nozzle (7). The sealing edge (76) and the dry-type nozzle (7) are fixed by screws.

6. The automatic spraying device for flue gas treatment and desulfurization agent according to claim 1 is characterized in that: The No. 1 pin (75) is in a "concave"-shaped structure. The No. 1 pin (75) is fixedly connected to the rotating shaft (73) via a spring. The upper and lower ends of the No. 1 pin (75) are both arranged to penetrate the rotating shaft (73). The upper end of the No. 1 pin (75) penetrates the rotating shaft (73) and is arranged to fit the upper surface of the support plate (71). The lower end of the No. 1 pin (75) penetrates the rotating shaft (73) and is arranged below the fan blade (74).

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