Flue gas purification device for thermal power plant

Abstract

The utility model discloses a flue gas purification device for a thermal power plant. The flue gas purification device comprises a purification tank, a speed reducing mechanism and a spraying mechanism, an air inlet pipe is fixed on the purification tank; the speed reducing mechanism is mounted on the purification tank and comprises a partition plate, a plurality of vent holes are formed in the partition plate, a sleeve is fixed to the partition plate, an auger is arranged in the sleeve, and a rotating rod is fixed to the auger; the spraying mechanism is mounted above the partition plate and comprises a supporting frame, a water conveying frame is fixed to the supporting frame, a plurality of nozzles are mounted at the lower end of the water conveying frame, a pair of rotating rings is fixed to the supporting frame, and the rotating rings are rotationally connected with the purification tank. Compared with the prior art, the flue gas purification device for the thermal power plant has the advantages that a desulfurizing agent sprayed by the spray head can be distributed more uniformly, and the flowing speed of flue gas in the purification device can be slowed down, so that the desulfurizing agent can be in full contact with the flue gas, and the purification effect of the purification device on the flue gas is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue gas purification, and in particular relates to a flue gas purification device for a thermal power plant. Background Art

[0002] Flue gas from thermal power plants is the gas produced when thermal power plants burn coal or other fuels, mainly including pollutants such as carbon dioxide, sulfur dioxide, smoke and nitrogen oxides. These pollutants are discharged into the atmosphere, which not only pollutes the environment, but also may have adverse effects on human health. Therefore, before the flue gas is discharged, it needs to be treated by a purification device before it can be discharged.

[0003] In the prior art, the flue gas purification device sprays desulfurizer through an internal nozzle. The desulfurizer can absorb and neutralize harmful substances in the flue gas, thereby purifying the flue gas. However, the position of the nozzle inside the purification device is fixed, making it difficult for the desulfurizer sprayed from the nozzle to be evenly distributed. In addition, the flue gas moves at a fast speed inside the purification device, which makes it difficult for the desulfurizer sprayed from the nozzle to fully contact with the flue gas, thereby reducing the treatment effect of the purification device on the flue gas and causing the exhausted flue gas to pollute the surrounding environment.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a flue gas purification device for a thermal power plant.

[0005] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0006] The utility model aims to provide a flue gas purification device for a thermal power plant, which can be used to solve the problem that a desulfurizing agent is not easy to fully contact with flue gas.

[0007] In order to achieve the above-mentioned purpose, a specific embodiment of the utility model provides a flue gas purification device for a thermal power plant, comprising: a purification tank, a deceleration mechanism and a spraying mechanism;

[0008] The deceleration mechanism is installed on the purification tank, and the deceleration mechanism includes a partition, a plurality of vent holes are drilled on the partition, a sleeve is fixed on the partition, an auger is arranged inside the sleeve, and a rotating rod is fixed on the auger;

[0009] The spraying mechanism is installed above the partition, and the spraying mechanism includes a support frame, a water delivery frame is fixed on the support frame, a plurality of nozzles are installed at the lower end of the water delivery frame, and a pair of rotating circles are fixed on the support frame, and the rotating circles are rotatably connected to the purification tank.

[0010] In one or more embodiments of the utility model, an air intake pipe is fixed on the purification tank, through which the flue gas can be transported into the purification tank, and an exhaust pipe is fixed on the upper end of the purification tank, through which the flue gas purified inside the purification tank can be discharged.

[0011] In one or more embodiments of the present invention, a plurality of fixing rods are fixed between the sleeve and the purification tank, and the fixing rods are used to fix the sleeve.

[0012] In one or more embodiments of the present invention, a support frame is fixed on the sleeve, and the support frame is used to support the protective cover and the motor.

[0013] In one or more embodiments of the utility model, a protective cover is fixed on the support frame, which is used to protect the motor so that the motor is not easily affected by flue gas and desulfurizer. A motor is installed inside the protective cover, and the motor is fixedly connected to one end of the rotating rod. The motor is used to control the rotation of the rotating rod.

[0014] In one or more embodiments of the utility model, the upper end of the water delivery frame is rotatably connected to a connection box, which is used to connect the water delivery pipe and the water delivery frame. A plurality of support rods are fixed between the connection box and the purification tank, which are used to support the connection box.

[0015] In one or more embodiments of the present invention, a water pipe is fixed on the connection box, and the desulfurizer can be transported to the inside of the water delivery frame through the water pipe.

[0016] In one or more embodiments of the utility model, a fixed block is installed on the purification tank, and the fixed block is used to support a rotating rod. The fixed block is rotatably connected to the rotating rod, and the rotating rod is used to support a pulley and a gear.

[0017] In one or more embodiments of the present invention, a pulley is fixed to one end of the rotating rod and the rotating rod, and the pulley is used to support a synchronous belt. A pair of the pulleys are provided with a synchronous belt, and the synchronous belt can rotate with the rotating rod, thereby driving the rotating rod to rotate.

[0018] In one or more embodiments of the present invention, a gear is fixed to the end of the rotating rod away from the pulley, and the gear can rotate along with the rotating rod, thereby driving the gear teeth and the support frame to rotate. A plurality of gear teeth meshing with the gears are fixed on the support frame, and the gear teeth mesh with the gears, so that the support frame can rotate along with the gears.

[0019] Compared with the prior art, the flue gas purification device of a thermal power plant of the utility model can make the desulfurizer sprayed by the nozzle more evenly distributed, and can slow down the flow rate of the flue gas inside the purification device, so that the desulfurizer can fully contact with the flue gas, thereby improving the purification effect of the purification device on the flue gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 This is a cross-sectional view of a flue gas purification device for a thermal power plant in one embodiment of the utility model;

[0022] Figure 2 for Figure 1 A schematic diagram of the structure shown in FIG.

[0023] Figure 3 for Figure 1 A schematic diagram of the structure shown at B in FIG.

[0024] Figure 4 for Figure 1 The structural diagram shown at C in the figure;

[0025] Figure 5 It is a partial structural schematic diagram of a speed reduction mechanism in one embodiment of the utility model;

[0026] Figure 6 It is a partial structural schematic diagram of a spraying mechanism in one embodiment of the utility model;

[0027] Figure 7 It is a three-dimensional diagram of a flue gas purification device for a thermal power plant in one embodiment of the utility model.

[0028] Description of main reference numerals:

[0029] 1-purification tank, 101-intake pipe, 102-exhaust pipe, 2-deceleration mechanism, 201-partition, 202-vent, 203-sleeve, 204-auger, 205-rotating rod, 206-fixed rod, 207-support frame, 208-protective cover, 209-motor, 3-spraying mechanism, 301-support frame, 302-water delivery frame, 303-spray head, 304-rotating circle, 305-connecting box, 306-support rod, 307-water delivery pipe, 308-fixed block, 309-rotating rod, 310-pulley, 311-synchronous belt, 312-gear, 313-gear teeth. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0031] like Figures 1 to 7 As shown, a flue gas purification device for a thermal power plant in one embodiment of the utility model comprises: a purification tank 1, a speed reduction mechanism 2 and a spraying mechanism 3.

[0032] like Figure 7 As shown, the purification tank 1 is used to support the partition 201 and the rotating circle 304, and flue gas and desulfurizer can also be placed inside the purification tank 1. An air intake pipe 101 is fixed on the purification tank 1, and the flue gas can be transported into the purification tank 1 through the air intake pipe 101. An exhaust pipe 102 is fixed at the upper end of the purification tank 1, and the flue gas purified inside the purification tank 1 can be discharged through the exhaust pipe 102.

[0033] Among them, a drain pipe is arranged below the air inlet pipe 101, through which the desulfurizer after the reaction inside the purification tank 1 can be discharged. A block is arranged inside the drain pipe, which can block the drain pipe, making it difficult for the desulfurizer inside the purification tank 1 to be discharged.

[0034] like Figure 5 As shown, the deceleration mechanism 2 is installed on the purification tank 1, and the deceleration mechanism 2 includes a partition 201, and the partition 201 is used to support the sleeve 203. The partition 201 is drilled with a plurality of vents 202, and the vents 202 can allow the desulfurizer above the partition 201 to fall below the partition 201, and the flue gas below the partition 201 can enter the partition 201 through the vents 202, so that the flue gas contacts the desulfurizer, and the desulfurizer preliminarily absorbs or adsorbs the harmful substances and dust inside the flue gas, and the vents 202 can slow down the movement speed of the flue gas below the partition 201.

[0035] like Figure 1 As shown, a sleeve 203 is fixed on the partition 201, and the sleeve 203 can provide a relatively closed environment for the auger 204, so that the auger 204 can transport the desulfurizer at the bottom of the purification tank 1 to the top of the partition 201. The auger 204 is arranged inside the sleeve 203, and the auger 204 can transport the desulfurizer at the bottom of the purification tank 1 to the top of the partition 201 during the rotation process.

[0036] like Figure 1 As shown, a rotating rod 205 is fixed on the auger 204, and the rotating rod 205 is used to support the auger 204 and can drive the auger 204 to rotate. A plurality of fixing rods 206 are fixed between the sleeve 203 and the purification tank 1, and the fixing rods 206 are used to fix the sleeve 203.

[0037] like Figure 2 As shown, a support frame 207 is fixed on the sleeve 203, and the support frame 207 is used to support the protective cover 208 and the motor 209. A protective cover 208 is fixed on the support frame 207, and the protective cover 208 is used to protect the motor 209, so that the motor 209 is not easily affected by the flue gas and the desulfurizer. The motor 209 is installed inside the protective cover 208, and the motor 209 is fixedly connected to one end of the rotating rod 205, and the motor 209 is used to control the rotating rod 205 to rotate.

[0038] A protective cover is fixed between the support frame 207 and the purification tank 1 , and the protective cover can protect the synchronous belt 311 , making the synchronous belt 311 less susceptible to the influence of flue gas and desulfurization agent, thereby increasing the practical life of the synchronous belt 311 .

[0039] like Figures 3 to 6 As shown, the spraying mechanism 3 is installed above the partition 201, and the spraying mechanism 3 includes a support frame 301, and the support frame 301 is used to support the water delivery frame 302, and can drive the water delivery frame 302 to rotate. The water delivery frame 302 is fixed on the support frame 301, and the water delivery frame 302 is used to store and transport the desulfurization agent, and the water delivery frame 302 can support multiple nozzles 303.

[0040] like Figures 3 to 6 As shown, a plurality of nozzles 303 are installed at the lower end of the water delivery frame 302, and the nozzles 303 can spray the desulfurizer inside the water delivery frame 302 after atomization. A pair of rotating rings 304 are fixed on the support frame 301, and the rotating rings 304 are rotatably connected with the purification tank 1. The rotating rings 304 are used to support the support frame 301 and can rotate on the purification tank 1 with the support frame 301.

[0041] like Figure 4 As shown, the upper end of the water delivery frame 302 is rotatably connected with a connection box 305, and the connection box 305 is used to connect the water delivery pipe 307 and the water delivery frame 302. A plurality of support rods 306 are fixed between the connection box 305 and the purification tank 1, and the support rods 306 are used to support the connection box 305.

[0042] like Figures 1 to 4 As shown, a water pipe 307 is fixed on the connection box 305, and the desulfurizer can be transported to the inside of the water delivery frame 302 through the water pipe 307. A fixing block 308 is installed on the purification tank 1, and the fixing block 308 is used to support the rotating rod 309.

[0043] like Figure 1 to Figure 2 As shown, a rotating rod 309 is rotatably connected to the fixed block 308, and the rotating rod 309 is used to support a pulley 310 and a gear 312. A pulley 310 is fixed to one end of the rotating rod 309 and the rotating rod 205, and the pulley 310 is used to support a synchronous belt 311. A pair of pulleys 310 are sleeved with a synchronous belt 311, and the synchronous belt 311 can rotate with the rotating rod 205, thereby driving the rotating rod 309 to rotate.

[0044] like Figure 3 As shown, a gear 312 is fixed to one end of the rotating rod 309 away from the pulley 310, and the gear 312 can rotate along with the rotating rod 309, thereby driving the gear 313 and the support frame 301 to rotate. A plurality of gear teeth 313 meshing with the gear 312 are fixed to the support frame 301, and the gear teeth 313 mesh with the gear 312, so that the support frame 301 can rotate along with the gear 312.

[0045] When in use, the motor 209 is started, and the motor 209 can control the rotating rod 205 to rotate, thereby driving the auger 204 to rotate. During the rotation process, the auger 204 can transport the desulfurizer at the bottom of the purification tank 1 to the top of the partition 201, and the desulfurizer above the partition 201 can flow back to the bottom of the purification tank 1 through the multiple vents 202;

[0046] The flue gas is transported into the purification tank 1 through the air inlet pipe 101, and the flue gas in the purification tank 1 can enter the top of the partition 201 through the multiple vents 202. When the flue gas passes through the vents 202, the partition 201 and the vents 202 can decelerate the flue gas, making it difficult for the flue gas to move quickly, and the desulfurizer that flows into the bottom of the purification tank 1 through the vents 202 can preliminarily adsorb or absorb the dust and harmful substances in the flue gas;

[0047] The desulfurizer is transported to the connection box 305 through the water pipe 307, so that the desulfurizer can enter the water delivery frame 302, and the desulfurizer in the water delivery frame 302 can be atomized and sprayed out through the nozzle 303, so that the desulfurizer can purify the flue gas in the purification tank 1;

[0048] The rotating rod 205 can also drive the synchronous belt 311 to rotate during the rotation process, and the synchronous belt 311 can drive the rotating rod 309 to rotate. The rotating rod 309 can drive the gear 312 to rotate during the rotation process, and the gear 312 is meshed with multiple gear teeth 313, so that the gear 312 can drive the support frame 301, the water delivery frame 302, the multiple nozzles 303 and the gear teeth 313 to rotate during the rotation process. During the rotation process, the multiple nozzles 303 can make the sprayed desulfurizer more evenly distributed, so that the desulfurizer can fully contact the flue gas, thereby improving the flue gas treatment efficiency of the purification device.

[0049] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0050] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A flue gas purification device for a thermal power plant, characterized in that: include: Purification tank; A speed reduction mechanism is installed on the purification tank, the speed reduction mechanism comprises a partition, a plurality of vent holes are drilled on the partition, a sleeve is fixed on the partition, an auger is arranged inside the sleeve, and a rotating rod is fixed on the auger; The spraying mechanism is installed above the partition, and the spraying mechanism includes a support frame, a water delivery frame is fixed on the support frame, a plurality of nozzles are installed at the lower end of the water delivery frame, and a pair of rotating circles are fixed on the support frame, and the rotating circles are rotatably connected to the purification tank.

2. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: An air inlet pipe is fixed on the purification tank, and an exhaust pipe is fixed on the upper end of the purification tank.

3. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: A plurality of fixing rods are fixed between the sleeve and the purification tank.

4. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: A support frame is fixed on the sleeve.

5. A flue gas purification device for a thermal power plant according to claim 4, characterized in that: A protective cover is fixed on the support frame, a motor is installed inside the protective cover, and the motor is fixedly connected to one end of the rotating rod.

6. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: The upper end of the water delivery frame is rotatably connected with a connection box, and a plurality of support rods are fixed between the connection box and the purification tank.

7. A flue gas purification device for a thermal power plant according to claim 6, characterized in that: A water pipe is fixed on the connection box.

8. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: A fixing block is installed on the purification tank, and a rotating rod is rotatably connected to the fixing block.

9. A flue gas purification device for a thermal power plant according to claim 8, characterized in that: The rotating rod and one end of the rotating rod are both fixed with pulleys, and a pair of pulleys are sleeved with synchronous belts.

10. A flue gas purification device for a thermal power plant according to claim 9, characterized in that: A gear is fixed on one end of the rotating rod away from the belt pulley, and a plurality of gear teeth meshing with the gear are fixed on the supporting frame.

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