Synergistic removal device for NOx and VOCs in incineration flue gas of garbage power plant

Abstract

The utility model discloses a waste power plant incineration flue gas NOx and VOCs synergetic removal device, relates to the technical field of tail gas treatment, in particular to a waste power plant incineration flue gas NOx and VOCs synergetic removal device, which comprises a deacidification box and an injection box, and the top of the deacidification box is respectively provided with a gas inlet pipe, a liquid inlet pipe, a conveying pipe and a first servo motor. According to the synergistic removal device for the NOx and the VOCs in the incineration flue gas of the garbage power plant, through the arrangement of a first servo motor, a round rod, a driving gear, a first stirring plate, a supporting rod, a driven gear, an inner gear ring, an annular sliding block, a vertical rod, a second stirring plate and an annular block, the synergistic removal device for the NOx and the VOCs in the incineration flue gas of the garbage power plant has the effect of improving tail gas deacidification; and the first stirring plate and the second stirring plate rotate reversely, so that the tail gas and the sodium hydroxide solution are conveniently mixed, the deacidification effect on the tail gas is improved, and the purpose of improving the practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a device for collaboratively removing NOx and VOCs from incineration flue gas in a garbage power plant. Background Art

[0002] As people's environmental awareness continues to improve and environmental protection needs become more urgent, the country has also put forward more stringent requirements for the tail gas emission standards of traditional refining and chemical enterprises. There will be a large amount of nitrogen oxides (NOx) in the flue gas of refineries, and disorderly emissions will cause air pollution such as acid rain and haze. Volatile organic compounds (VOCs) that are disorderly emitted during the loading, unloading and storage of oil products and chemical materials in refining and chemical enterprises are also the main precursors of photochemical pollution. They will form fine particulate matter and destroy the ozone layer. At the same time, they are irritating and toxic. Therefore, the removal of NOx and VOCs in tail gas has become a key research object in the field of environmental protection.

[0003] In the prior art, the NOx and VOCs synergistic removal device for flue gas from waste power plants has a mixed reaction effect with the sodium hydroxide solution during the deacidification of the exhaust gas, which affects the deacidification of the exhaust gas. In addition, the existing NOx and VOCs synergistic removal device for flue gas from waste power plants has a small range of exhaust gas injection through the activated carbon solution, which is not convenient for adjusting the injection position, affecting the removal of NOx and VOCs in the exhaust gas. A NOx and VOCs synergistic removal device for flue gas from waste power plants is first invented to solve the above problems. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the utility model provides a device for collaboratively removing NOx and VOCs from incineration flue gas in a garbage power plant, solving the problems raised in the above-mentioned background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a device for synergistically removing NOx and VOCs from incineration flue gas in a garbage power plant, comprising a deacidification box and an injection box, an air inlet pipe, a liquid inlet pipe, a conveying pipe and a first servo motor are respectively arranged on the top of the deacidification box, a round rod with the same center as the axis of the output end of the first servo motor is installed at the output end of the first servo motor, a driving gear and a first stirring plate are respectively installed on the outer surface of the round rod, an inner top wall of the deacidification box is rotatably connected with a support rod through a bearing, a driven gear is installed at the end of the support rod, the driven gear is meshed with an inner gear ring through teeth, an annular slider is installed on the outer surface of the inner gear ring, a vertical rod is installed at the bottom of the inner gear ring, a second stirring plate is installed on one side of the vertical rod, and a round rod is installed on the inner top wall of the deacidification box. Ring block, a support plate is installed on the inner top wall of the spray box, a second servo motor is installed on one side of the support plate, a disk with the same center as the axis of the output end of the second servo motor is installed on the output end of the second servo motor, a positioning slider is installed in front of the disk, a matching rod is rotatably connected to the front of the support plate through a bearing, a residual gear with the same center as the matching rod is installed on the outer surface of the matching rod, a connecting rod is installed on the top of the residual gear, the residual gear is meshed with a rack rod through teeth, a guide ring block is installed at the bottom of the rack rod, a spray pipe is arranged at the bottom of the guide ring block, a nozzle is arranged at the bottom of the spray pipe, and a guide rod is installed on the inner wall of the spray box.

[0008] Optionally, an annular groove with a depth in the vertical direction is formed on the inner surface of the circular ring block, and the end of the annular sliding block is located inside the annular groove.

[0009] Optionally, the driving gear is meshed with the driven gear through teeth, and the position of the driving gear is higher than that of the first stirring plate.

[0010] Optionally, the guide rod passes through the guide ring block, and the round rod, the driving gear, the internal gear ring, the annular slider and the ring block all have the same center.

[0011] Optionally, a positioning slot with a depth in the front-to-rear direction and a length in the up-to-down direction is provided in the front of the connecting rod, the end of the positioning slider is located inside the positioning slot, and the positioning slider can slide along the length direction of the positioning slot.

[0012] Optionally, a solution tank is installed on one side of the spray box, a water pump is installed on the top of the solution tank, and a liquid suction pipe and a liquid outlet hose are respectively provided at both ends of the water pump. The liquid suction pipe runs through the solution tank, the liquid outlet hose runs through the spray box, and the end of the liquid outlet hose is connected to the spray pipe flange.

[0013] Optionally, the round rod is rotatably connected to the deacidification box via a bearing, and the first servo motor, the second servo motor and the water pump are electrically connected to an external power supply via a wire.

[0014] Optionally, a liquid inlet screw cap is provided at the end of the liquid inlet pipe, a liquid discharge pipe is provided in front of the deacidification box and the spray box, a liquid discharge screw cap is provided at the end of the liquid discharge pipe, an exhaust pipe is provided at the top of the spray box, and a delivery pipe runs through the spray box.

[0015] (III) Beneficial effects

[0016] The utility model provides a device for synergistically removing NOx and VOCs from incineration flue gas in garbage power plants, which has the following beneficial effects:

[0017] 1. The synergistic removal device for NOx and VOCs in flue gas from incineration of garbage power plant has the effect of improving the deacidification of exhaust gas through the arrangement of the first servo motor, round rod, driving gear, first stirring plate, support rod, driven gear, internal gear ring, annular slider, vertical rod, second stirring plate and circular ring block. The reverse rotation between the first stirring plate and the second stirring plate facilitates the mixing of exhaust gas and sodium hydroxide solution, improves the deacidification effect of exhaust gas, and achieves the purpose of improving practicality.

[0018] 2. The coordinated removal device for NOx and VOCs from flue gas incineration in the garbage power plant has the advantages of conveniently increasing the spraying range of the activated carbon solution on the exhaust gas and improving the removal effect of NOx and VOCs in the exhaust gas through the arrangement of the second servo motor, the disc, the positioning slider, the matching rod, the residual gear, the connecting rod, the rack rod, the guide ring block, the spray pipe, the nozzle and the guide rod. The coordinated removal device for NOx and VOCs from the flue gas incineration in the garbage power plant has the advantages of conveniently increasing the spraying range of the activated carbon solution on the exhaust gas and improving the removal effect of NOx and VOCs in the exhaust gas. Through the coordination of the residual gear and the rack rod, the spray pipe is convenient to move back and forth to spray the activated carbon solution, thereby increasing the spraying range and achieving the purpose of improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model in front view section;

[0021] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 It is a schematic diagram of the structure of the side cross-section of the utility model;

[0023] Figure 5 It is a schematic diagram of the structure of the utility model in a top view of a partial section.

[0024] In the figure: 1, deacidification box; 2, spray box; 3, air inlet pipe; 4, liquid inlet pipe; 5, conveying pipe; 6, first servo motor; 7, round rod; 8, driving gear; 9, first stirring plate; 10, support rod; 11, driven gear; 12, inner gear ring; 13, annular slider; 14, vertical rod; 15, second stirring plate; 16, circular ring block; 17, support plate; 18, second servo motor; 19, disc; 20, positioning slider; 21, matching rod; 22, residual gear; 23, connecting rod; 24, rack rod; 25, guide ring block; 26, spray pipe; 27, nozzle; 28, guide rod; 29, solution box; 30, water pump; 31, liquid extraction pipe; 32, liquid outlet hose; 33, liquid inlet screw cap; 34, liquid discharge pipe; 35, liquid discharge screw cap; 36, exhaust pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example 1

[0027] See also Figures 1 to 5, the utility model provides a technical solution: waste power plant incineration flue gas NOx and VOCs The collaborative removal device comprises a deacidification box 1 and a spray box 2, wherein a solution box 29 is installed on one side of the spray box 2, a water pump 30 is installed on the top of the solution box 29, a liquid extraction pipe 31 and a liquid outlet hose 32 are respectively arranged at both ends of the water pump 30, the liquid extraction pipe 31 runs through the solution box 29, the liquid outlet hose 32 runs through the spray box 2, and the end of the liquid outlet hose 32 is flange-connected to the spray pipe 26, an air inlet pipe 3, a liquid inlet pipe 4, a delivery pipe 5 and a first servo motor 6 are respectively arranged on the top of the deacidification box 1, a liquid inlet screw cap 33 is arranged at the end of the liquid inlet pipe 4, a liquid discharge pipe 34 is arranged in front of the deacidification box 1 and the spray box 2, a liquid discharge screw cap 35 is arranged at the end of the liquid discharge pipe 34, an exhaust pipe 36 is arranged on the top of the spray box 2, the delivery pipe 5 runs through the spray box 2, a round rod 7 having the same center as the axis of the output end of the first servo motor 6 is installed at the output end of the first servo motor 6, and the round rod 7 passes through It is rotatably connected to the deacidification box 1 through a bearing, the first servo motor 6, the second servo motor 18 and the water pump 30 are electrically connected to the external power supply through a wire, the outer surface of the round rod 7 is respectively installed with a driving gear 8 and a first stirring plate 9, the driving gear 8 is meshed with a driven gear 11 through teeth, the position of the driving gear 8 is higher than the position of the first stirring plate 9, the inner top wall of the deacidification box 1 is rotatably connected with a support rod 10 through a bearing, the end of the support rod 10 is installed with a driven gear 11, the driven gear 11 is meshed with an inner gear ring 12 through teeth, an annular slider 13 is installed on the outer surface of the inner gear ring 12, a vertical rod 14 is installed at the bottom of the inner gear ring 12, a second stirring plate 15 is installed on one side of the vertical rod 14, a circular block 16 is installed on the inner top wall of the deacidification box 1, the inner surface of the circular block 16 is provided with an annular groove with a depth in the up and down direction, and the end of the annular slider 13 is located inside the annular groove.

[0028] When in use, the exhaust gas is discharged into the interior of the deacidification box 1 through the air inlet pipe 3, so that the exhaust gas reacts with the sodium hydroxide solution in the deacidification box 1 for deacidification, and the sodium hydroxide solution is conveniently added through the liquid inlet pipe 4. The liquid inlet screw cap 33 is convenient for closing the liquid inlet pipe 4, and the first servo motor 6 drives the round rod 7, the driving gear 8 and the first stirring plate 9 to rotate, so that the first stirring plate 9 stirs the sodium hydroxide solution, so that the exhaust gas and the sodium hydroxide solution can react fully, and the driven gear 11 is respectively engaged with the driving gear 8 and the inner gear ring 12, and the annular slider 13 is inside the annular slide groove, so that the inner gear ring 12 drives the annular slider 13, the vertical rod 14 and the second stirring plate 15 to rotate, so that the second stirring plate 15 stirs the sodium hydroxide solution, and the stirring directions between the first stirring plate 9 and the second stirring plate 15 are opposite, thereby improving the reaction effect of the exhaust gas and the sodium hydroxide solution, improving the deacidification effect, and improving practicality.

[0029] Example 2

[0030] See also Figures 1 to 5The utility model provides a technical solution: a synergistic removal device for NOx and VOCs in flue gas from incineration of a garbage power plant, a support plate 17 is installed on the inner top wall of the injection box 2, a second servo motor 18 is installed on one side of the support plate 17, a disc 19 with the same center as the axis of the output end of the second servo motor 18 is installed at the output end of the second servo motor 18, a positioning slider 20 is installed in front of the disc 19, a matching rod 21 is rotatably connected to the front of the support plate 17 through a bearing, a residual gear 22 with the same center as the matching rod 21 is installed on the outer surface of the matching rod 21, a connecting rod 23 is installed on the top of the residual gear 22, and a front of the connecting rod 23 is provided with a depth in the forward and backward direction. , a positioning slide groove with a length in the up and down direction, the end of the positioning slider 20 is located inside the positioning slide groove, and the positioning slider 20 can slide along the length direction of the positioning slide groove, the residual gear 22 is meshed with a rack rod 24 through teeth, a guide ring block 25 is installed at the bottom of the rack rod 24, a spray pipe 26 is arranged at the bottom of the guide ring block 25, and a nozzle 27 is arranged at the bottom of the spray pipe 26, a guide rod 28 is installed on the inner wall of the spray box 2, and the guide rod 28 runs through the guide ring block 25, and the round rod 7, the driving gear 8, the inner gear ring 12, the annular slider 13 and the circular ring block 16 all have the same center.

[0031] When in use, the deacidified tail gas is transported to the inside of the spray box 2 through the delivery pipe 5, the water pump 30 extracts the activated carbon solution in the solution box 29 through the liquid extraction pipe 31, and sprays the activated carbon solution through the liquid outlet hose 32, the spray pipe 26 and the nozzle 27. The second servo motor 18 drives the disc 19 to rotate, and the positioning slider 20 performs a circular motion with the center of the disc 19 as the center. The movement of the positioning slider 20 drives the connecting rod 23 to swing within a certain range. The matching rod 21 and the residual gear 22 have the same center, and the residual gear 22 and the rack rod 24 are at the same center. The guide ring block 25 is meshed, and the guide ring block 25 can be positioned and moved along the length direction of the guide rod 28, so that the rack rod 24 drives the guide ring block 25, the spray pipe 26 and the nozzle 27 to move back and forth for spraying, thereby increasing the spraying area and improving the removal effect of NOx and VOCs in the exhaust gas. After that, the gas is discharged from the injection box 2 through the exhaust pipe 36. The liquid outlet hose 32 is long and made of soft material, which does not affect the back and forth movement of the spray pipe 26. The drain cap 35 is opened, and the liquid in the deacidification box 1 and the injection box 2 can be conveniently discharged through the drain pipe 34.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for removing NOx and VOCs from flue gas from waste power plants, including a deacidification box and an injection box, characterized in that: The top of the deacidification box is respectively provided with an air inlet pipe, a liquid inlet pipe, a conveying pipe and a first servo motor, a round rod with the same center as the axis of the output end of the first servo motor is installed at the output end of the first servo motor, a driving gear and a first stirring plate are respectively installed on the outer surface of the round rod, the inner top wall of the deacidification box is rotatably connected with a support rod through a bearing, a driven gear is installed at the end of the support rod, the driven gear is meshed with an inner gear ring through teeth, an annular slider is installed on the outer surface of the inner gear ring, a vertical rod is installed at the bottom of the inner gear ring, a second stirring plate is installed on one side of the vertical rod, a circular ring block is installed on the inner top wall of the deacidification box, and the inner A support plate is installed on the top wall, a second servo motor is installed on one side of the support plate, a disk with the same center as the axis of the output end of the second servo motor is installed on the output end of the second servo motor, a positioning slider is installed in front of the disk, a matching rod is rotatably connected to the front of the support plate through a bearing, a residual gear with the same center as the matching rod is installed on the outer surface of the matching rod, a connecting rod is installed on the top of the residual gear, the residual gear is meshed with a rack rod through teeth, a guide ring block is installed at the bottom of the rack rod, a spray pipe is arranged at the bottom of the guide ring block, a nozzle is arranged at the bottom of the spray pipe, and a guide rod is installed on the inner wall of the spray box.

2. The device for synergistically removing NOx and VOCs from incineration flue gas of a garbage power plant according to claim 1 is characterized by: An annular sliding groove with a depth in the up-down direction is provided on the inner surface of the circular ring block, and the end of the annular sliding block is located inside the annular sliding groove.

3. The device for synergistically removing NOx and VOCs from incineration flue gas of a garbage power plant according to claim 1 is characterized by: The driving gear is meshed with the driven gear through teeth, and the position of the driving gear is higher than the position of the first stirring plate.

4. The device for synergistically removing NOx and VOCs from incineration flue gas of a garbage power plant according to claim 1 is characterized by: The guide rod runs through the guide ring block, and the round rod, the driving gear, the internal gear ring, the annular sliding block and the ring block all have the same center.

5. The device for synergistically removing NOx and VOCs from incineration flue gas in a garbage power plant according to claim 1 is characterized by: A positioning slide groove with a depth in the front-to-back direction and a length in the up-and-down direction is provided in the front of the connecting rod. The end of the positioning slide block is located inside the positioning slide groove, and the positioning slide block can slide along the length direction of the positioning slide groove.

6. The device for synergistically removing NOx and VOCs from incineration flue gas in a garbage power plant according to claim 1, characterized in that: A solution tank is installed on one side of the spray box, a water pump is installed on the top of the solution tank, a liquid suction pipe and a liquid outlet hose are respectively provided at both ends of the water pump, the liquid suction pipe runs through the solution tank, the liquid outlet hose runs through the spray box, and the end of the liquid outlet hose is connected to the spray pipe flange.

7. The device for synergistically removing NOx and VOCs from flue gas from waste-to-energy plants according to claim 6 is characterized by: The round rod is rotatably connected to the deacidification box through a bearing, and the first servo motor, the second servo motor and the water pump are electrically connected to an external power supply through a wire.

8. The device for synergistically removing NOx and VOCs from incineration flue gas in a garbage power plant according to claim 1, characterized in that: A liquid inlet screw cap is arranged at the end of the liquid inlet pipe, a liquid discharge pipe is arranged in front of the deacidification box and the spray box, a liquid discharge screw cap is arranged at the end of the liquid discharge pipe, an exhaust pipe is arranged at the top of the spray box, and a conveying pipe runs through the spray box.

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