Desulfurizing tower dosing control device

Abstract

The utility model relates to the technical field of desulfurizing tower dosing, in particular to a desulfurizing tower dosing control device, a stirring component is mounted at the upper part of a fixed frame, a dosing component is mounted at the bottom of the fixed frame, and the stirring component comprises a dosing tank mounted at the top of the fixed frame; rotating shafts are symmetrically and rotationally connected to the two sides of the interior of the dosing tank, special-shaped stirring wheels are fixedly installed on the outer portions of the two rotating shafts, the special-shaped stirring wheels are arranged in the fixing frame, and matched arc-shaped bottom plates are installed at the positions, corresponding to the special-shaped stirring wheels, of the inner bottom of the dosing tank; and transmission gears are fixedly installed outside the two rotating shafts, the two transmission gears are meshed with each other, and a driving motor is fixedly installed at the edge of the upper portion of the fixing frame. According to the control device for dosing of the desulfurizing tower, the uniformity of medicaments in the dosing tank can be improved, dosing can be carried out quantitatively, the dosing effect is improved, and a better use prospect is brought.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization tower dosing, in particular to a desulfurization tower dosing control device. Background Art

[0002] At present, the desulfurization systems of most thermal power plants in my country use wet limestone desulfurization. In recent years, with the increasing attention paid by the industry and society to environmental protection, the sulfur dioxide emission standards of thermal power plants have been continuously improved, and the safety and economical operation requirements of the desulfurization systems of power plants have been continuously improved. In recent years, in order to reduce fuel costs, coal-fired thermal power plants have burned a large amount of high-sulfur economic coal. The existing desulfurization equipment technology has reached its operating limit or can no longer meet the relevant requirements. Adding a desulfurization enhancer during the operation of the desulfurization system can greatly improve the desulfurization efficiency. For example, a Chinese patent discloses an intelligent dosing control device for a desulfurization tower (authorization announcement number CN217119860U). This patented technology can stir the liquid medicine inside the dissolving barrel through an agitator, so that the liquid medicine inside the dissolving barrel is mixed more evenly, and the concentration of the liquid medicine inside the dissolving barrel is more uniform;

[0003] However, the above disclosed desulfurization tower dosing device still has some defects when in use: when in use, the device cannot mix the reagents in the dosing tank, cannot scrape and mix the precipitates on the inner bottom wall, which affects the uniformity of dosing, and cannot dosing quantitatively, which affects the convenience of dosing. Therefore, those skilled in the art provide a desulfurization tower dosing control device to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a control device for adding chemicals to a desulfurization tower to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A desulfurization tower dosing control device comprises a fixing frame, a stirring assembly is installed on the upper part of the fixing frame, and a dosing assembly is installed on the bottom of the fixing frame;

[0007] The stirring assembly includes a dosing tank installed on the top of a fixed frame, and rotating shafts are symmetrically connected to the inside of the dosing tank on both sides, and opposite-sex stirring wheels are fixedly installed on the outside of the two rotating shafts, and the opposite-sex stirring wheels are arranged inside the fixed frame. A matching arc bottom plate is installed at the position of the opposite-sex stirring wheels at the inner bottom of the dosing tank corresponding to the position of the opposite-sex stirring wheels, and transmission gears are fixedly installed on the outside of the two rotating shafts, and the two transmission gears are meshed with each other. A driving motor is fixedly installed at the upper edge of the fixed frame, and the output shaft of the driving motor is connected to the input shaft of one of the rotating shafts;

[0008] The dosing assembly comprises a drug outlet pipe installed at the discharge end at the bottom of the dosing tank, the discharge end of the drug outlet pipe is equipped with a drug outlet pipe, and the drug outlet pipe is provided with a liquid outlet mechanism.

[0009] As a further solution of the utility model: the upper part of the dosing tank is rotatably connected to a tank cover, an injection pipe is installed on one side of the inner and outer sides of the dosing tank, an air inlet pipe is installed on the other side of the inner and outer sides of the dosing tank, a water distribution pipe is installed at the liquid outlet end of the air inlet pipe, and the water distribution pipe is arranged inside the dosing tank, and a dosing pump is installed at the liquid inlet end of the injection pipe.

[0010] As a further solution of the utility model: the liquid outlet mechanism includes a switching valve installed at the connection between the drug outlet pipe and the drug adding pipe, the drug adding valve is installed at the liquid outlet end of the switching valve, and the inside of the drug adding pipe is slidably connected with a piston rod.

[0011] As a further solution of the utility model: a valve stem is rotatably connected to the middle of the interior of the switching valve, a valve seat is fixedly installed on the exterior of the valve stem, and the valve seat is arranged inside the switching valve.

[0012] As a further solution of the utility model: a three-way water hole is opened in the middle of the inner part of the valve seat, and an adjusting arm is fixedly installed on the outer end of the valve stem.

[0013] As a further solution of the utility model: a telescopic rod is rotatably connected to the inner side of the fixing frame at a position corresponding to the adjusting arm, and the output shaft of the telescopic rod is rotatably connected to the outer side of the adjusting arm, and an adjusting motor is fixedly installed at a position corresponding to the piston rod on the inner side of the fixing frame.

[0014] As a further solution of the utility model: a threaded adjustment rod is fixedly installed on the output shaft of the adjustment motor, and a matching threaded adjustment groove is opened inside the piston rod at a position corresponding to the threaded adjustment rod.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A control device for dosing a desulfurization tower. When in use, the medicine solution is poured into the dosing tank through the dosing pump and the injection pipe, the driving motor drives the rotating shaft to rotate, and the transmission gear drives the two rotating shafts to rotate in opposite directions, which can drive two opposite-sex stirring wheels to stir in opposite directions, thereby improving the effect of mixing the medicines. The opposite-sex stirring wheels are fitted with the arc bottom plate, so the medicine precipitated on the bottom of the arc bottom plate can be scraped off, and the medicine inside the dosing tank is aerated by adding air to the air inlet pipe through the water distribution pipe, thereby improving the uniformity of mixing and the effect of dosing, which is better than the traditional method.

[0017] 2. A control device for dosing a desulfurization tower, which aligns the three-way water hole in the switching valve with the drug outlet pipe and the dosing pipe, drives the threaded adjusting rod to rotate through the adjusting motor, pumps the agent in the dosing tank into the dosing pipe through the piston rod, and then pushes the adjusting arm through the telescopic rod, drives the valve seat to rotate through the valve stem, so that the three-way water hole can be aligned with the dosing pipe and the dosing valve, and quantitative dosing can be achieved by opening the dosing valve, which improves convenience during use and is better than the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a control device for adding chemicals to a desulfurization tower;

[0019] Figure 2 This is a schematic diagram of the structure of a dosing tank in a desulfurization tower dosing control device;

[0020] Figure 3 This is a schematic diagram of the structure of a dosing pipe in a desulfurization tower dosing control device;

[0021] Figure 4 This is a schematic diagram of the structure of a valve seat in a desulfurization tower dosing control device.

[0022] In the figure: 1. fixed frame; 2. dosing tank; 3. tank cover; 4. injection pipe; 5. dosing pump; 6. air inlet pipe; 7. dosing pipe; 8. dosing pipe; 9. driving motor; 10. rotating shaft; 11. transmission gear; 12. heterogeneous stirring wheel; 13. arc bottom plate; 14. water distribution pipe; 15. dosing valve; 16. switching valve; 17. valve stem; 18. adjusting arm; 19. telescopic rod; 20. piston rod; 21. adjusting motor; 22. threaded adjusting rod; 23. valve seat; 24. three-way water hole. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 4 In the embodiment of the utility model, a control device for dosing a desulfurization tower comprises a fixed frame 1, a stirring assembly is installed on the upper part of the fixed frame 1, a dosing assembly is installed on the bottom of the fixed frame 1, the dosing assembly comprises a dosing pipe 7 installed at the discharge end of the bottom of the dosing tank 2, a dosing pipe 8 is installed at the discharge end of the dosing pipe 7, and the dosing pipe 8 is provided with a liquid discharge mechanism;

[0025] The stirring assembly includes a dosing tank 2 installed on the top of a fixed frame 1, and a rotating shaft 10 is symmetrically connected to the two sides of the dosing tank 2 for rotation. The outsides of the two rotating shafts 10 are fixedly installed with heterogeneous stirring wheels 12, and the heterogeneous stirring wheels 12 are arranged inside the fixed frame 1. A matching arc bottom plate 13 is installed at the position of the heterogeneous stirring wheels 12 at the inner bottom of the dosing tank 2. Transmission gears 11 are fixedly installed on the outsides of the two rotating shafts 10, and the two transmission gears 11 are meshed with each other. A driving motor 9 is fixedly installed at the upper edge of the fixed frame 1, and the output shaft of the driving motor 9 is connected to the input shaft of one of the rotating shafts 10;

[0026] The liquid outlet mechanism includes a switching valve 16 installed at the connection between the drug outlet pipe 7 and the drug adding pipe 8, a drug adding valve 15 is installed at the liquid outlet end of the switching valve 16, a piston rod 20 is slidably connected inside the drug adding pipe 8, a valve stem 17 is rotatably connected to the middle of the switching valve 16, a valve seat 23 is fixedly installed on the outside of the valve stem 17, and the valve seat 23 is arranged inside the switching valve 16, a three-way water hole 24 is opened in the middle of the inside of the valve seat 23, an adjusting arm 18 is fixedly installed on the outer end of the valve stem 17, a telescopic rod 19 is rotatably connected to the inner side of the fixed frame 1 corresponding to the position of the adjusting arm 18, and the output shaft of the telescopic rod 19 is rotatably connected to the outside of the adjusting arm 18, and the inner side of the fixed frame 1 corresponds to the position of the piston rod 20. An adjusting motor 21 is fixedly installed, and a threaded adjusting rod 22 is fixedly installed on the output shaft of the adjusting motor 21. A matching threaded adjusting groove is opened inside the piston rod 20 at the position corresponding to the threaded adjusting rod 22. The three-way water hole 24 in the switching valve 16 is aligned with the drug outlet pipe 7 and the drug adding pipe 8. The threaded adjusting rod 22 is driven to rotate by the adjusting motor 21, and the medicine in the drug adding tank 2 is pumped into the drug adding pipe 8 through the piston rod 20. The adjusting arm 18 is pushed by the telescopic rod 19, and the valve seat 23 is driven to rotate by the valve stem 17. Then, the three-way water hole 24 can be aligned with the drug adding pipe 8 and the drug adding valve 15. Opening the drug adding valve 15 can achieve quantitative drug adding, thereby improving convenience during use.

[0027] exist Figure 1-2 Middle: The upper part of the dosing tank 2 is rotatably connected with a tank cover 3, a drug injection pipe 4 is installed on one side of the inner and outer sides of the dosing tank 2, an air inlet pipe 6 is installed on the other side of the inner and outer sides of the dosing tank 2, a water distribution pipe 14 is installed at the liquid outlet end of the air inlet pipe 6, and the water distribution pipe 14 is arranged inside the dosing tank 2, a dosing pump 5 is installed at the liquid inlet end of the drug injection pipe 4, and the agent inside the dosing tank 2 is aerated by the water distribution pipe 14, which can improve the uniformity of mixing and improve the effect of dosing.

[0028] The working principle of the utility model is: when in use, the medicine is poured into the medicine adding tank 2 through the medicine adding pump 5 and the medicine injection tube 4, the rotating shaft 10 is driven to rotate by the driving motor 9, and the two rotating shafts 10 are driven to rotate in opposite directions by the transmission gear 11, so that the two opposite stirring wheels 12 can be driven to stir in opposite directions, thereby improving the effect of medicine mixing;

[0029] By fitting the heterogeneous stirring wheel 12 with the arc bottom plate 13, the medicine precipitated at the bottom of the arc bottom plate 13 can be scraped off, and the medicine inside the medicine adding tank 2 can be aerated through the water distribution pipe 14 by adding air to the air inlet pipe 6, so as to improve the uniformity of mixing and the effect of medicine adding;

[0030] By aligning the three-way water hole 24 in the switching valve 16 with the drug outlet pipe 7 and the drug adding pipe 8, the adjusting motor 21 drives the threaded adjusting rod 22 to rotate, and then the medicine in the drug adding tank 2 is pumped into the drug adding pipe 8 through the piston rod 20, the telescopic rod 19 pushes the adjusting arm 18, and the valve seat 23 is driven to rotate through the valve stem 17, so that the three-way water hole 24 can be aligned with the drug adding pipe 8 and the drug adding valve 15, and the drug adding valve 15 can be opened to achieve quantitative drug adding, thereby improving convenience during use and being more practical.

Claims

1. A desulfurization tower dosing control device, comprising a fixing frame (1), characterized in that: A stirring assembly is installed on the upper part of the fixed frame (1), and a dosing assembly is installed on the bottom of the fixed frame (1); The stirring assembly comprises a dosing tank (2) mounted on the top of a fixed frame (1), wherein rotating shafts (10) are symmetrically connected to the inside of the dosing tank (2) on both sides thereof, and opposite-sex stirring wheels (12) are fixedly mounted on the outside of the two rotating shafts (10), and the opposite-sex stirring wheels (12) are arranged inside the fixed frame (1), and a matching arc-shaped bottom plate (13) is mounted at the position of the opposite-sex stirring wheels (12) at the inner bottom of the dosing tank (2), and transmission gears (11) are fixedly mounted on the outside of the two rotating shafts (10), and the two transmission gears (11) are meshed with each other, and a driving motor (9) is fixedly mounted on the upper edge of the fixed frame (1), and the output shaft of the driving motor (9) is connected to the input shaft of one of the rotating shafts (10); The dosing assembly comprises a drug outlet pipe (7) installed at the bottom discharge end of the drug outlet tank (2), a drug outlet pipe (8) is installed at the discharge end of the drug outlet pipe (7), and the drug outlet pipe (8) is provided with a liquid discharge mechanism.

2. A desulfurization tower dosing control device according to claim 1, characterized in that: The upper part of the dosing tank (2) is rotatably connected to a tank cover (3); a drug injection pipe (4) is installed on one side of the inner and outer sides of the dosing tank (2); an air intake pipe (6) is installed on the other side of the inner and outer sides of the dosing tank (2); a water distribution pipe (14) is installed at the liquid outlet end of the air intake pipe (6), and the water distribution pipe (14) is arranged inside the dosing tank (2); and a dosing pump (5) is installed at the liquid inlet end of the drug injection pipe (4).

3. A desulfurization tower dosing control device according to claim 1, characterized in that: The liquid outlet mechanism comprises a switching valve (16) installed at the connection between the drug outlet pipe (7) and the drug adding pipe (8), a drug adding valve (15) is installed at the liquid outlet end of the switching valve (16), and a piston rod (20) is slidably connected inside the drug adding pipe (8).

4. A desulfurization tower dosing control device according to claim 3, characterized in that: A valve stem (17) is rotatably connected to the middle of the switching valve (16), a valve seat (23) is fixedly mounted on the outside of the valve stem (17), and the valve seat (23) is arranged inside the switching valve (16).

5. A desulfurization tower dosing control device according to claim 4, characterized in that: A three-way water hole (24) is provided in the middle of the valve seat (23), and an adjusting arm (18) is fixedly mounted on the outer end of the valve stem (17).

6. A desulfurization tower dosing control device according to claim 5, characterized in that: A telescopic rod (19) is rotatably connected to the inner side of the fixed frame (1) at a position corresponding to the adjusting arm (18), and an output shaft of the telescopic rod (19) is rotatably connected to the outside of the adjusting arm (18). An adjusting motor (21) is fixedly installed at a position corresponding to the piston rod (20) on the inner side of the fixed frame (1).

7. A desulfurization tower dosing control device according to claim 6, characterized in that: A threaded adjustment rod (22) is fixedly mounted on the output shaft of the adjustment motor (21), and a matching threaded adjustment groove is provided inside the piston rod (20) at a position corresponding to the threaded adjustment rod (22).

Images