Liquid distribution spray gun for spouted bed drying tower

Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to a liquid distribution spray gun for a spouted bed drying tower, the liquid distribution spray gun comprises a tower body, a rotating groove is annularly formed in the inner circumferential wall of the tower body, an access hole communicated with the rotating groove is formed in the outer circumferential surface of the tower body, and a rotating ring plate concentric with the rotating groove is rotatably connected in the rotating groove; and the upper end and the lower end of the rotating ring plate are slidably attached to the upper inner wall and the lower inner wall of the rotating groove, four mounting openings which are evenly distributed in the circumferential direction are formed in the outer circumferential face of the rotating ring plate, and mounting frame plates communicating with the rotating ring plate are fixedly connected to the positions, at the four mounting openings, of the inner circumferential wall of the rotating ring plate. The salt-containing wastewater treatment tower has the advantages that the salt-containing wastewater treatment efficiency is improved, a worker does not need to enter the tower body when the atomization nozzle needs to be overhauled, and the overhauling work is greatly facilitated.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, and in particular to a liquid distribution spray gun for a jet bed drying tower. Background Technology

[0002] Currently, in saline wastewater treatment technologies in industries such as coal-fired power plants, sewage treatment plants, and chemical plants, the sputtered bed dryer, as a new type of gas-liquid-solid three-phase heat exchange equipment, is replacing traditional rotary atomizing dryers and two-fluid atomizing dryers due to its competitive advantages such as high drying efficiency and small equipment size. Typically, saline wastewater is atomized into fine droplets and then sprayed into hot flue gas or hot air. The heat from the hot flue gas or hot air dries the droplets into water vapor and solid particles. The sputtered bed dryer is equipped with a saline wastewater distribution device, namely a distribution spray gun, which is used to convey and spray the saline wastewater inside the tower.

[0003] Currently, most of the liquid distribution spray guns used in jet bed drying towers adopt a single pipe and a single nozzle. The atomizing nozzle extends directly into the tower body through the pipe. Although the structure is simple, the amount of wastewater input per unit time is limited, which cannot efficiently complete the treatment of saline wastewater. Moreover, since the pipe is fixed to the tower body by welding, when the atomizing nozzle malfunctions and becomes blocked, it is necessary to manually enter the tower body to inspect and replace it, which greatly increases the maintenance difficulty.

[0004] To address the aforementioned issues, we propose a liquid distribution spray gun for a sputtered bed drying tower. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the background art by providing a liquid distribution spray gun for a jet bed drying tower.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a liquid distribution spray gun for a jet bed drying tower, comprising a tower body, a rotating groove annularly formed on the inner peripheral wall of the tower body, an inspection port communicating with the rotating groove on the outer peripheral surface of the tower body, a rotating ring plate concentrically connected to the rotating groove, the upper and lower ends of the rotating ring plate slidingly fitting against the upper and lower inner walls of the rotating groove, four evenly distributed mounting ports on the outer peripheral surface of the rotating ring plate, and mounting frame plates communicating with the rotating ring plate fixedly connected to the inner peripheral wall of the rotating ring plate at the positions of the four mounting ports, and a spray gun housing installed in each corresponding communicating mounting port and mounting frame plate; Each of the four spray gun housings has a notch at one end inside the tower body. A liquid collection box is provided inside the notch. Both ends of the liquid collection box are sealed and rotatably connected to connecting pipes. The two connecting pipes are coaxially arranged and their ends away from the liquid collection box are fixedly connected to the inner wall of the notch. The end of the liquid collection box near the center of the tower body is connected to an atomizing nozzle. Baffles are fixedly connected to the upper and lower ends of the liquid collection box. Each spray gun housing has a liquid injection port at the upper end. The lower end of the liquid injection port extends into the spray gun housing and is connected to two connecting pipes. The ends of the two connecting pipes away from the liquid injection port are respectively connected to two connecting pipes. An annular lifting groove is formed on the top wall of the rotating groove. An annular liquid tank is vertically slidably connected in the lifting groove. An injection tube is connected to the lower end of the annular liquid tank at a corresponding position above the four injection ports. The lower end of the injection tube is sealed and movably inserted into the corresponding injection port. A device groove is formed on the outer circumferential surface of the tower body above the lifting groove. A telescopic cylinder is fixedly installed in the device groove. A lifting plate is fixedly connected to the telescopic end of the telescopic cylinder. A liquid delivery pipe is vertically fixed through the lifting plate. The lower end of the liquid delivery pipe movably passes through the bottom wall of the device groove and is connected to the upper end of the annular liquid tank.

[0007] In the above-mentioned liquid distribution spray gun for a jet bed drying tower, the spray gun housing passes through the corresponding mounting port and mounting frame plate. Limiting grooves are opened on both sides of the mounting port. A limiting block matching the limiting groove is fixedly connected to one end of the spray gun housing outside the mounting port. The limiting block and the corresponding limiting groove are connected by bolts.

[0008] In the above-mentioned liquid distribution spray gun for a jet bed drying tower, an annular toothed groove is provided on the outer circumferential surface of the rotating ring plate below the mounting port, and a transmission port is provided on the outer circumferential surface of the tower body at the position of the annular toothed groove. A drive motor is fixedly installed on the outer circumferential surface of the tower body, and a first gear is coaxially fixedly connected to the output end of the drive motor. The first gear passes through the transmission port and meshes with the annular toothed groove.

[0009] In the above-mentioned liquid distribution spray gun for a jet bed drying tower, a rotating rod is rotatably connected between the inner walls of both sides of the spray gun housing. A second gear is fixedly sleeved on the rotating rod. Both ends of the second gear are meshed with toothed plates. Push plates are fixedly connected to the ends of the two toothed plates away from the second gear. The ends of the two push plates near the tower body slide through the inner wall of the spray gun housing and extend into the recess. The ends of the two push plates located in the recess are both smooth arc-shaped and abut against the two push plates respectively.

[0010] In the above-mentioned liquid distribution spray gun for a jet bed drying tower, a circular groove is provided at one end of the spray gun housing located at the installation port. A rotating block is provided in the circular groove. A drive rod is coaxially fixedly connected to the rotating block. The end of the drive rod away from the rotating block extends into the spray gun housing and is fixedly sleeved with a worm gear. A worm wheel is fixedly sleeved on the rotating rod, and the worm gear meshes with the worm wheel.

[0011] In the above-mentioned liquid distribution spray gun for a jet bed drying tower, each of the spray gun housings is rotatably connected to a handle at one end of the mounting port.

[0012] Compared with existing technologies, the advantages of this liquid distribution spray gun for a jet-driven bed drying tower are: 1. By setting up inspection ports, rotating ring plates, and spray gun housings, the rotating ring plates can be driven by a drive motor to rotate periodically, allowing all four spray gun housings to rotate to the position of the inspection port. This facilitates the disassembly and installation of the spray gun housings from the inspection port, eliminating the need for manual entry into the tower and greatly simplifying maintenance work.

[0013] 2. By setting up four spray gun housings, each equipped with an atomizing nozzle and a liquid injection port, the telescopic cylinder can drive the annular liquid tank to rise and fall vertically via a lifting plate and a liquid delivery pipeline, ensuring that each liquid injection tube is inserted into its corresponding liquid injection port. The pumping equipment can then input saline wastewater into the annular liquid tank through the liquid delivery pipeline, and then inject it into the four liquid injection ports from the four liquid injection tubes at the bottom of the annular liquid tank. This allows the four atomizing nozzles to simultaneously spray atomized saline wastewater, thus efficiently treating the saline wastewater.

[0014] 3. By setting a rotatable liquid collection box and baffles at both ends of the liquid collection box, the second gear can be driven to rotate under the transmission action of the worm gear by simply rotating the drive rod through the rotating block 23. When the second gear rotates, the two tooth plates move in opposite directions, and then the two push plates also move in opposite directions synchronously. The liquid collection box is forced to rotate by a corresponding angle through contact with the two baffles. At this time, the angle of the corresponding atomizing nozzle changes, which plays the role of adjusting the spray angle of the atomizing nozzle. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural view of a liquid distribution spray gun for a jet-driven bed drying tower proposed in this invention; Figure 2 This is a partial three-dimensional view of a liquid distribution spray gun for a jet-driven bed drying tower proposed in this invention; Figure 3 This invention provides a three-dimensional representation of a rotating ring plate in a liquid distribution spray gun for a jet-driven bed drying tower. Figure 4This is a perspective view of the spray gun housing in a liquid distribution spray gun for a jet-driven bed drying tower proposed in this invention; Figure 5 This is a cross-sectional view of the spray gun housing in a liquid distribution spray gun for a jet bed drying tower proposed in this invention.

[0016] In the diagram: 1. Tower body, 2. Rotating groove, 3. Inspection port, 4. Rotating ring plate, 5. Installation port, 6. Installation frame plate, 7. Spray gun box, 8. Limiting groove, 9. Limiting block, 10. Annular toothed groove, 11. Transmission port, 12. Drive motor, 13. First gear, 14. Liquid collection box, 15. Connecting pipe, 16. Atomizing nozzle, 17. Baffle, 18. Rotating rod, 19. Second gear, 20. Toothed plate, 21. Push plate, 22. Drive rod, 23. Rotating block, 24. Liquid injection port, 25. Connecting pipe, 26. Annular liquid tank, 27. Liquid injection insertion pipe, 28. Device groove, 29. Telescopic cylinder, 30. Lifting plate, 31. Liquid delivery pipeline, 32. Handle. Detailed Implementation

[0017] The following examples are for illustrative purposes only and are not intended to limit the scope of the invention.

[0018] Reference Figures 1-5 A liquid distribution spray gun for a spouted bed drying tower includes a tower body 1, which is part of the spouted bed drying tower. A rotating groove 2 is annularly formed on the inner circumferential wall of the tower body 1. An inspection port 3 communicating with the rotating groove 2 is formed on the outer circumferential surface of the tower body 1. A rotating ring plate 4, concentrically arranged within the rotating groove 2, is rotatably connected to it. The upper and lower ends of the rotating ring plate 4 are slidably fitted against the upper and lower inner walls of the rotating groove 2. Four evenly distributed mounting ports 5 are formed on the outer circumferential surface of the rotating ring plate 4. Mounting frame plates 6, communicating with the mounting ports 5, are fixedly connected to the inner circumferential wall of the rotating ring plate 4 at each of the four mounting ports 5. A spray gun housing 7 is installed inside both the connected mounting port 5 and the mounting frame plate 6. The spray gun housing 7 passes through the corresponding mounting port 5 and mounting frame plate 6. Limiting grooves 8 are provided on both side walls of the mounting port 5. A limiting block 9 matching the limiting groove 8 is fixedly connected to the end of the spray gun housing 7 outside the mounting port 5. The limiting block 9 and the corresponding limiting groove 8 are connected by bolts. The setting of the limiting groove 8 and the limiting block 9 allows the spray gun housing 7 to easily pass through the mounting port 5 and mounting frame plate 6, and the spray gun housing 7 can be easily fixed to the rotating ring plate 4 or removed from the rotating ring plate 4 using bolts. The setting of the inspection port 3 and the rotating ring plate 4 allows all four spray gun housings 7 to be rotated to the position of the inspection port 3, thereby facilitating the disassembly and installation of the spray gun housing 7 from the inspection port 3.

[0019] A ring groove 10 is formed on the outer circumference of the rotating ring plate 4 below the mounting port 5. A transmission port 11 is formed on the outer circumference of the tower body 1 at the position of the ring groove 10. A drive motor 12 is fixedly installed on the outer circumference of the tower body 1. A first gear 13 is coaxially fixedly connected to the output end of the drive motor 12. The first gear 13 passes through the transmission port 11 and meshes with the ring groove 10. The drive motor 12 can drive the rotating ring plate 4 to rotate automatically through the meshing of the first gear 13 and the ring groove 10. The drive motor 12 is a stepper motor, which can drive the rotating ring plate 4 to rotate 90 degrees each time, thereby driving one spray gun box 7 to rotate to the position of the inspection port 3 each time. Each spray gun box 7 is rotatably connected to a handle 32 at one end of the mounting port 5. The spray gun box 7 can be easily pulled out from the inspection port 3 by using the handle 32.

[0020] Each of the four spray gun housings 7 has a notch at one end inside the tower body 1. A liquid collection box 14 is housed within each notch. Both ends of the liquid collection box 14 are rotatably connected to connecting pipes 15. Two connecting pipes 15 are coaxially arranged, with the ends furthest from the liquid collection box 14 fixedly connected to the inner wall of the notch. The liquid collection box 14 can rotate between the two connecting pipes 15. An atomizing nozzle 16 is connected to the end of the liquid collection box 14 closest to the center of the tower body 1. The atomizing nozzle 16 is existing technology; under pressure, saline wastewater can be atomized and sprayed out through the atomizing nozzle 16. Both ends of the liquid collection box 14 are fixedly connected to baffles 17. A rotating rod 18 is rotatably connected between the inner walls of both sides of the spray gun box 7. A second gear 19 is fixedly sleeved on the rotating rod 18. Both ends of the second gear 19 are meshed with toothed plates 20. Push plates 21 are fixedly connected to the ends of the two toothed plates 20 away from the second gear 19. The ends of the two push plates 21 near the inside of the tower body 1 slide through the inner wall of the spray gun box 7 and extend into the recess. The ends of the two push plates 21 located in the recess are both smooth arcs and abut against the two push plates 21 respectively. When the second gear 19 rotates, the two toothed plates 20 move in opposite directions, and then the two push plates 21 also move in opposite directions synchronously. The liquid collection box 14 is forced to rotate by a corresponding angle through the contact action with the two baffles 17. At this time, the angle of the corresponding atomizing nozzle 16 changes, which plays the role of adjusting the spray angle of the atomizing nozzle 16.

[0021] A circular groove is provided at one end of the spray gun housing 7 at the mounting port 5. A rotating block 23 is provided in the circular groove. A drive rod 22 is coaxially fixedly connected to the rotating block 23. The end of the drive rod 22 away from the rotating block 23 extends into the spray gun housing 7 and is fixedly sleeved with a worm gear. A worm wheel is fixedly sleeved on the rotating rod 18. The worm gear meshes with the worm wheel. By rotating the drive rod 22 through the rotating block 23, the second gear 19 can be driven to rotate under the transmission action of the worm gear, thereby adjusting the angle of the atomizing nozzle 16. Under the self-locking action of the worm gear, the atomizing nozzle 16 will not move due to its own weight or the airflow in the tower body 1, ensuring the stability of the spray angle.

[0022] Each spray gun housing 7 is provided with a liquid injection port 24 at the upper end. The lower end of the liquid injection port 24 extends into the spray gun housing 7 and is connected to two connecting pipes 25. The ends of the two connecting pipes 25 away from the liquid injection port 24 are respectively connected to two connecting pipes 15. Salt-containing wastewater can be pumped into the liquid collection box 14 of the spray gun housing 7 through the liquid injection port 24, so that the salt-containing wastewater is atomized and sprayed into the drying tower through the atomizing nozzle 16.

[0023] An annular lifting groove is provided on the top wall of the rotating groove 2. An annular liquid tank 26 is vertically slidably connected in the lifting groove. An injection tube 27 is connected to the lower end of the annular liquid tank 26 and at the corresponding position above the four injection ports 24. The lower end of the injection tube 27 is sealed and movably inserted into the corresponding injection port 24. A device groove 28 is provided on the outer circumference of the tower body 1 and above the lifting groove. The annular liquid tank 26 can be vertically lifted and lowered in the lifting groove. A telescopic cylinder 29 is fixedly installed inside the device tank 28. A lifting plate 30 is fixedly connected to the telescopic end of the telescopic cylinder 29. A liquid delivery pipe 31 is vertically fixed through the lifting plate 30. The lower end of the liquid delivery pipe 31 movably passes through the bottom wall of the device tank 28 and connects to the upper end of the annular liquid tank 26. The telescopic cylinder 29 can drive the annular liquid tank 26 to move vertically up and down through the lifting plate 30 and the liquid delivery pipe 31. When all the injection tubes 27 are inserted into the corresponding injection ports 24, the pumping equipment can input the saline wastewater into the annular liquid tank 26 through the liquid delivery pipe 31, and then inject it into the four injection ports 24 from the four injection tubes 27 at the lower end of the annular liquid tank 26. This allows the four atomizing nozzles 16 to spray atomized saline wastewater simultaneously, thereby efficiently treating the saline wastewater.

[0024] When maintenance of the atomizing nozzle 16 is required, simply move the annular liquid tank 26 upward using the telescopic cylinder 29 to disengage each injection tube 27 from the injection port 24. Then, in conjunction with the drive motor 12, each spray gun housing 7 can be removed from the tower body 1 in sequence. This eliminates the need for manual entry into the tower body, greatly facilitating maintenance.

[0025] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid distribution spray gun for a spouted bed drying tower, comprising a tower body (1), characterized in that, The inner circumferential wall of the tower body (1) is provided with a rotating groove (2), and the outer circumferential surface of the tower body (1) is provided with an inspection port (3) communicating with the rotating groove (2). The rotating groove (2) is rotatably connected with a rotating ring plate (4) arranged concentrically therewith. The upper and lower ends of the rotating ring plate (4) are slidably attached to the upper and lower inner walls of the rotating groove (2). The outer circumferential surface of the rotating ring plate (4) is provided with four evenly distributed mounting ports (5). The inner circumferential wall of the rotating ring plate (4) and the four mounting ports (5) are fixedly connected with mounting frame plates (6) communicating with it. Each corresponding connected mounting port (5) and mounting frame plate (6) is equipped with a spray gun box (7). Each of the four spray gun housings (7) has a notch at one end inside the tower body (1). A liquid collection box (14) is provided inside the notch. Both ends of the liquid collection box (14) are sealed and rotatably connected to a connecting pipe (15). The two connecting pipes (15) are coaxially arranged and the ends away from the liquid collection box (14) are fixedly connected to the inner wall of the notch. The end of the liquid collection box (14) near the center of the tower body (1) is connected to an atomizing nozzle (16). Both ends of the liquid collection box (14) are fixedly connected to baffles (17). Each spray gun housing (7) has an injection port (24) at the top. The lower end of the injection port (24) extends into the spray gun housing (7) and is connected to two connecting pipes (25). The ends of the two connecting pipes (25) away from the injection port (24) are respectively connected to the two connecting pipes (15). An annular lifting groove is provided on the inner top wall of the rotating groove (2). An annular liquid tank (26) is vertically slidably connected in the lifting groove. An injection tube (27) is connected to the lower end of the annular liquid tank (26) and at the corresponding position above the four injection ports (24). The lower end of the injection tube (27) is sealed and movably inserted into the corresponding injection port (24). A device groove (28) is provided on the outer circumference of the tower body (1) and above the lifting groove. A telescopic cylinder (29) is fixedly installed in the device groove (28). A lifting plate (30) is fixedly connected to the telescopic end of the telescopic cylinder (29). A liquid delivery pipe (31) is vertically fixed through the lifting plate (30). The lower end of the liquid delivery pipe (31) movably passes through the inner bottom wall of the device groove (28) and is connected to the upper end of the annular liquid tank (26).

2. The liquid distribution spray gun for a jet-driven bed drying tower according to claim 1, characterized in that, The spray gun housing (7) passes through the corresponding mounting port (5) and mounting frame plate (6). Limiting grooves (8) are opened on both sides of the mounting port (5). A limiting block (9) matching the limiting groove (8) is fixedly connected to one end of the spray gun housing (7) outside the mounting port (5). The limiting block (9) and the corresponding limiting groove (8) are connected by bolts.

3. A liquid distribution spray gun for a jet-driven bed drying tower according to claim 1, characterized in that, The rotating ring plate (4) has an annular toothed groove (10) on its outer circumferential surface and below the mounting port (5). The tower body (1) has a transmission port (11) on its outer circumferential surface and at the position of the annular toothed groove (10). A drive motor (12) is fixedly installed on the outer circumferential surface of the tower body (1). The output end of the drive motor (12) is coaxially fixedly connected to a first gear (13). The first gear (13) passes through the transmission port (11) and meshes with the annular toothed groove (10).

4. A liquid distribution spray gun for a jet-driven bed drying tower according to claim 1, characterized in that, A rotating rod (18) is rotatably connected between the inner walls of both sides of the spray gun housing (7). A second gear (19) is fixedly sleeved on the rotating rod (18). Both ends of the second gear (19) are meshed with toothed plates (20). Push plates (21) are fixedly connected to the ends of the two toothed plates (20) away from the second gear (19). The ends of the two push plates (21) close to the tower body (1) slide through the inner wall of the spray gun housing (7) and extend into the recess. The ends of the two push plates (21) located in the recess are both smooth arcs and abut against the two push plates (21) respectively.

5. A liquid distribution spray gun for a jet-driven bed drying tower according to claim 4, characterized in that, The spray gun housing (7) has a circular groove at one end of the mounting port (5). A rotating block (23) is provided in the circular groove. A drive rod (22) is coaxially fixedly connected to the rotating block (23). The end of the drive rod (22) away from the rotating block (23) extends into the spray gun housing (7) and is fixedly sleeved with a worm gear. A worm wheel is fixedly sleeved on the rotating rod (18), and the worm gear meshes with the worm wheel.

6. A liquid distribution spray gun for a jet-driven bed drying tower according to claim 1, characterized in that, Each of the spray gun housings (7) has a handle (32) rotatably connected to one end of the mounting port (5).

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