Flue gas desulfurization, denitrification, purification and emission device

Abstract

The utility model relates to the technical field of flue gas purification equipment, and provides a flue gas desulfurization, denitrification, purification and discharge device which comprises a supporting table, a gas inlet mechanism, a gas inlet pipe, a smoke dust cleaning mechanism, a cleaning cylinder, a desulfurization and denitrification mechanism and a water tank, the gas inlet mechanism is fixedly connected to the supporting table, and the smoke dust cleaning mechanism is fixedly connected to the bottom side of the gas inlet mechanism; the cleaning cylinder is fixedly connected to the bottom end of the supporting table, the desulfurization and denitrification mechanism is fixedly connected to the supporting table and comprises a desulfurization tower, the desulfurization and denitrification mechanism comprises a water tank, and the water tank is fixedly connected to the bottom end of the supporting table. In the prior art, an S-shaped structural design is generally adopted, insoluble particles in flue gas are easy to adhere to equipment, a channel is blocked, oxygen is not uniformly distributed, the oxidation effect becomes poor, and the desulfurization efficiency is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas purification equipment, in particular to a flue gas desulfurization and denitrification purification and emission device. Background Art

[0002] Flue gas desulfurization and denitrification technology is a boiler flue gas purification technology used in the chemical industry that produces a lot of nitrogen oxides and sulfur oxides. Nitrogen oxides and sulfur oxides are one of the main sources of air pollution. Known flue gas desulfurization and denitrification technologies include PAFP, ACFP, pyrolusite method, electron beam ammonia method, pulse corona method, gypsum wet method, catalytic oxidation method, microbial degradation method and other technologies.

[0003] In the prior art, flue gas desulfurization and denitrification mostly adopts the method of catalytic reduction denitrification. Under the action of catalyst, ammonia is used as a reducing agent to react with nitrogen oxides in the flue gas to generate nitrogen and water. The denitrification efficiency is high and can reach more than 90%.

[0004] In actual applications, the equipment used for flue gas desulfurization and denitrification generally adopts an S-shaped structure design in order to transmit flue gas. The insoluble particles in the flue gas are easy to adhere to the equipment, forming channel blockage, which will lead to uneven oxygen distribution and poor oxidation effect, resulting in reduced desulfurization efficiency. Utility Model Content

[0005] The utility model proposes a flue gas desulfurization and denitrification purification and emission device, which solves the problem that the equipment for flue gas desulfurization and denitrification in the related technology generally adopts an S-shaped structure design in order to transmit flue gas, wherein insoluble particles in the flue gas are easy to adhere to the equipment, forming channel blockage, which will lead to uneven oxygen distribution, poor oxidation effect, and reduced desulfurization efficiency.

[0006] The technical solution of the utility model is as follows:

[0007] A flue gas desulfurization and denitration purification and emission device, comprising a support platform, an air intake mechanism, an air intake pipe, a smoke and dust cleaning mechanism, a cleaning cylinder, a desulfurization and denitration mechanism and a water tank;

[0008] The air intake mechanism is fixedly connected to the support platform;

[0009] Wherein, the air intake mechanism comprises an air intake pipe;

[0010] The smoke and dust cleaning mechanism is fixedly connected to the bottom side of the air intake mechanism;

[0011] Wherein, the smoke and dust cleaning mechanism comprises a cleaning cylinder, and the cleaning cylinder is fixedly connected to the bottom end of the support platform;

[0012] The desulfurization and denitration mechanism is fixedly connected to the support platform, and the desulfurization and denitration mechanism includes a desulfurization tower;

[0013] Wherein, the desulfurization and denitrification mechanism includes a water tank, and the water tank is fixedly connected to the bottom end of the support platform.

[0014] Furthermore, the air intake mechanism includes an air intake tower and an air outlet pipe;

[0015] The air intake tower is fixedly connected to the support platform, and the air intake pipe is fixedly connected to the side wall of the air intake tower;

[0016] The air outlet pipe is fixedly connected to the side wall of the air inlet tower.

[0017] Furthermore, the smoke and dust cleaning mechanism includes a slow flow plate, a fan, a water pipe, a water pump and a sprinkler head;

[0018] There are two slow flow plates 1, the two slow flow plates 1 are fixedly connected in the cleaning cylinder, and a plurality of through holes for smoke to pass through are opened on the two slow flow plates 1;

[0019] The fan is fixedly connected to the bottom end of the air intake tower, and the output end of the fan is connected to the inside of the air intake tower;

[0020] The water pipe is fixedly connected to the side wall of the cleaning cylinder;

[0021] The water pump 1 is fixedly connected to the bottom side of the support platform, and the output end of the water pump 1 is fixedly connected to the water pipe;

[0022] The spray head is fixedly connected to an end of the water pipe close to the cleaning cylinder.

[0023] Furthermore, the desulfurization and denitrification mechanism includes a first delivery pipe, a second slow flow plate, a second delivery pipe, an exhaust pipe and a reduction component;

[0024] The delivery pipe 1 is fixedly connected to one end of the gas outlet pipe, and the delivery pipe 1 is connected to the three desulfurization towers;

[0025] The second slow flow plates are provided with six, and the six second slow flow plates are respectively fixedly connected to the three desulfurization towers;

[0026] The second delivery pipe is fixedly connected to the tops of the three desulfurization towers, and the second delivery pipe is connected to the water tank;

[0027] The exhaust pipe is fixedly connected to the top of the water tank;

[0028] The reduction assembly is fixedly connected to the bottom side of the support platform.

[0029] Preferably, the reduction assembly includes a second water pump, a third delivery pipe and a second spray head;

[0030] There are three water pumps 2, and the three water pumps 2 are fixedly connected to the bottom side of the support platform, and the input ends of the three water pumps 2 are fixedly connected to the water tank;

[0031] There are three delivery pipes 3, one end of each of the three delivery pipes 3 is fixedly connected to one end of each of the three desulfurization towers, and the other end of each of the three delivery pipes 3 is fixedly connected to the output ends of the three water pumps 2;

[0032] There are three spray heads 2, and the three spray heads 2 are fixedly connected to one end of the three conveying pipes 3, and the output ends of the three spray heads 2 are respectively connected to the three desulfurization towers.

[0033] More preferably, a cavity is formed between every two of the second slow flow plates and every two of the first slow flow plates, and activated carbon filter cotton is placed in the cavity.

[0034] The working principle and beneficial effects of the utility model are:

[0035] 1. In the utility model, the air intake mechanism and the smoke dust cleaning mechanism cooperate, and the smoke entering the device passes through the smoke dust cleaning mechanism, and the smoke therein is absorbed by the smoke dust cleaning mechanism. Compared with the existing technology, the dust content of the flue gas before desulfurization is greatly reduced, preventing the desulfurization tower and the pipeline from being blocked by dust, resulting in reduced desulfurization efficiency;

[0036] 2. In the utility model, harmful gases in the flue gas can be removed by the desulfurization and denitrification mechanism. Compared with the existing technology, the harmful gases in the flue gas are reduced by spraying ammonia water, and then the gas after desulfurization and denitrification is immersed in water for a second time to filter out the dust therein, so as to prevent the unfiltered dust from entering the atmosphere and polluting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0038] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0039] Figure 2 It is a partial cross-sectional structural schematic diagram of the utility model;

[0040] Figure 3 This is a schematic diagram of the overall structure of the back of the utility model;

[0041] Figure 4 This is a schematic diagram of the internal structure of the desulfurization tower of the utility model.

[0042] In the figure: 1. Support platform; 2. Air inlet pipe; 3. Cleaning cylinder; 4. Desulfurization tower; 5. Water tank; 6. Air inlet tower; 7. Air outlet pipe; 8. Slow flow plate 1; 9. Fan; 10. Water pipe; 11. Water pump 1; 12. Sprinkler head 1; 13. Delivery pipe 1; 14. Slow flow plate 2; 15. Delivery pipe 2; 16. Exhaust pipe; 17. Reduction component; 18. Water pump 2; 19. Delivery pipe 3; 20. Sprinkler head 2. DETAILED DESCRIPTION

[0043] The following will be combined with 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 of 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.

[0044] like Figure 1~Figure 4 As shown, this embodiment proposes a flue gas desulfurization and denitrification purification and emission device, including a support platform 1, an air intake mechanism, an air intake pipe 2, a smoke cleaning mechanism, a cleaning cylinder 3, a desulfurization and denitrification mechanism and a water tank 5, the air intake mechanism is fixedly connected to the support platform 1, wherein the air intake mechanism includes the air intake pipe 2, the smoke cleaning mechanism is fixedly connected to the bottom side of the air intake mechanism, wherein the smoke cleaning mechanism includes the cleaning cylinder 3, the cleaning cylinder 3 is fixedly connected to the bottom end of the support platform 1, the desulfurization and denitrification mechanism is fixedly connected to the support platform 1, the desulfurization and denitrification mechanism includes a desulfurization tower 4, wherein the desulfurization and denitrification mechanism includes a water tank 5, The water tank 5 is fixedly connected to the bottom end of the support platform 1. When the flue gas is desulfurized and denitrated, the flue gas is passed into the air intake mechanism through the air intake pipe 2, and then the smoke dust cleaning mechanism settles most of the dust in the flue gas into the cleaning cylinder 3 by spraying water, so that the dust will not be blocked when entering the desulfurization tower 4 and the transmission pipeline. Then the flue gas enters the desulfurization and denitrification mechanism, and the harmful gas in the flue gas is reduced by spraying ammonia water. Then the gas after desulfurization and denitrification is immersed in water for secondary filtration of the dust therein, and the reduction effect is good. The treated flue gas is passed into water for secondary dust removal to prevent harm to the environment.

[0045] Among them, the air intake mechanism includes an air intake tower 6 and an air outlet pipe 7. The air intake tower 6 is fixedly connected to the support platform 1, the air intake pipe 2 is fixedly connected to the side wall of the air intake tower 6, and the air outlet pipe 7 is fixedly connected to the side wall of the air intake tower 6. The flue gas passes through the air intake tower 6, and cooperates with the smoke dust cleaning mechanism to remove large particles of dust in the flue gas, and is sent to desulfurization and denitrification through the air outlet pipe 7, so that the smoke dust is not easy to block the transmission pipeline.

[0046] Secondly, the smoke and dust cleaning mechanism includes a slow flow plate 8, a fan 9, a water pipe 10, a water pump 11 and a sprinkler head 12. There are two slow flow plates 8, and the two slow flow plates 8 are fixedly connected in the cleaning cylinder 3. A plurality of through holes for smoke to pass through are opened on the two slow flow plates 8. The fan 9 is fixedly connected to the bottom end of the air intake tower 6, and the output end of the fan 9 is connected to the air intake tower 6. The water pipe 10 is fixedly connected to the side wall of the cleaning cylinder 3, and the water pump 11 is fixedly connected to the bottom side of the support platform 1. The water pump 11 is fixedly connected to the bottom side of the support platform 1. The output end of 11 is fixedly connected to the water pipe 10, and the spray head 12 is fixedly connected to one end of the water pipe 10 near the cleaning tube 3. When the flue gas enters the air intake tower 6, the fan 9 is started to blow the flue gas in the air intake tower 6 to move into the cleaning tube 3. When passing through the slow flow plate 8, the movement speed of the flue gas slows down, and then the water pump 11 is turned on to pump the water in the water tank 5 into the water pipe 10, and spray it out from the spray head to settle the dust particles in the flue gas to prevent large particles from clogging the pipeline and affecting the efficiency of desulfurization and denitrification.

[0047] Again, the desulfurization and denitrification mechanism includes a conveying pipe 13, a slow flow plate 14, a conveying pipe 15, an exhaust pipe 16 and a reduction component 17. The conveying pipe 13 is fixedly connected to one end of the outlet pipe 7, the conveying pipe 13 is connected to three desulfurization towers 4, six slow flow plates 14 are provided, and the six slow flow plates 14 are respectively fixedly connected to the three desulfurization towers 4, the conveying pipe 15 is fixedly connected to the top of the three desulfurization towers 4, the conveying pipe 15 is connected to the water tank 5, the exhaust pipe 16 is fixedly connected to the top of the water tank 5, and the reduction component 17 is fixedly connected to the bottom side of the support platform 1. The flue gas enters the desulfurization tower 4 through the conveying pipe 13, the slow flow plate 14 slows down the transmission speed of the flue gas, and the reduction component 17 reduces the flue gas, and reduces the harmful gases in the flue gas into harmless gases such as hydrogen and nitrogen through the reducing property of ammonia water. When passing through the water tank 5, the particulate matter contaminated during the transmission process is further adsorbed and discharged into the atmosphere, and the treatment process is safer and harmless.

[0048] Among them, the reduction component 17 includes a water pump 2 18, a delivery pipe 3 19 and a spray head 20. The water pump 2 18 is provided with three, and the three water pumps 2 18 are fixedly connected to the bottom side of the support platform 1. The input ends of the three water pumps 2 18 are fixedly connected to the water tank 5. The delivery pipe 3 19 is provided with three, one end of the three delivery pipes 3 19 is fixedly connected to one end of the three desulfurization towers 4, and the other end of the three delivery pipes 3 19 is fixedly connected to the output end of the three water pumps 2 18. The spray head 20 is provided with three The three spray heads 20 are fixedly connected to one end of the three delivery pipes 3 19, and the output ends of the three spray heads 20 are respectively connected to the three desulfurization towers 4. The reduction component 17 desulfurizes and denitrates by spraying ammonia water. The water pump 2 18 is started to pump the prepared ammonia water in the water tank 5 into the delivery pipe 3 19, and then sprayed out by the spray head. At the same time, the ammonia water in the water tank 5 can further desulfurize and denitrify the flue gas in the dust removal step after desulfurization and denitrification, so as to better ensure that the flue gas does not contain harmful gases before discharge.

[0049] Finally, a cavity is formed between every two slow flow plates 2 14 and two slow flow plates 1 8, and activated carbon filter cotton is placed in the cavity to filter large particles of harmful substances in the flue gas, making desulfurization and denitrification safer and more reliable.

[0050] The above are only preferred embodiments of the present invention and are 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 in the protection scope of the present invention.

Claims

1. A flue gas desulfurization and denitrification purification and emission device, comprising a support platform (1), characterized in that: Also includes: An air intake mechanism, the air intake mechanism being fixedly connected to the support platform (1); Wherein, the air intake mechanism comprises an air intake pipe (2); A smoke and dust cleaning mechanism, wherein the smoke and dust cleaning mechanism is fixedly connected to the bottom side of the air intake mechanism; Wherein, the smoke and dust cleaning mechanism comprises a cleaning cylinder (3), and the cleaning cylinder (3) is fixedly connected to the bottom end of the support platform (1); A desulfurization and denitrification mechanism, the desulfurization and denitrification mechanism is fixedly connected to the support platform (1), and the desulfurization and denitrification mechanism comprises a desulfurization tower (4); Wherein, the desulfurization and denitrification mechanism comprises a water tank (5), and the water tank (5) is fixedly connected to the bottom end of the support platform (1).

2. A flue gas desulfurization and denitrification purification and emission device according to claim 1, characterized in that: The air intake mechanism comprises: An air intake tower (6), the air intake tower (6) being fixedly connected to the support platform (1), and the air intake pipe (2) being fixedly connected to a side wall of the air intake tower (6); An air outlet pipe (7), wherein the air outlet pipe (7) is fixedly connected to a side wall of the air inlet tower (6).

3. A flue gas desulfurization and denitrification purification and emission device according to claim 2, characterized in that: The smoke and dust cleaning mechanism comprises: A slow flow plate (8), wherein two slow flow plates (8) are provided, and the two slow flow plates (8) are fixedly connected in the cleaning cylinder (3), and the two slow flow plates (8) are provided with a plurality of through holes for smoke to pass through; A fan (9), the fan (9) being fixedly connected to the bottom end of the air intake tower (6), and the output end of the fan (9) being in communication with the inside of the air intake tower (6); A water pipe (10), the water pipe (10) being fixedly connected to the side wall of the cleaning barrel (3); A water pump (11), wherein the water pump (11) is fixedly connected to the bottom side of the support platform (1), and an output end of the water pump (11) is fixedly connected to the water pipe (10); A spray head (12), wherein the spray head (12) is fixedly connected to an end of the water pipe (10) close to the cleaning barrel (3).

4. A flue gas desulfurization and denitrification purification and emission device according to claim 3, characterized in that: The desulfurization and denitrification mechanism comprises: A delivery pipe (13), the delivery pipe (13) being fixedly connected to one end of the gas outlet pipe (7), and the delivery pipe (13) being connected to the three desulfurization towers (4); A second slow flow plate (14), wherein six second slow flow plates (14) are provided, and the six second slow flow plates (14) are respectively fixedly connected in three of the desulfurization towers (4); A second delivery pipe (15), the second delivery pipe (15) is fixedly connected to the top ends of the three desulfurization towers (4), and the second delivery pipe (15) is connected to the water tank (5); An exhaust pipe (16), the exhaust pipe (16) being fixedly connected to the top end of the water tank (5); A reduction component (17), wherein the reduction component (17) is fixedly connected to the bottom side of the support platform (1).

5. A flue gas desulfurization and denitrification purification and emission device according to claim 4, characterized in that: The reduction component (17) comprises: Water pump 2 (18), wherein three water pumps 2 (18) are provided, and the three water pumps 2 (18) are fixedly connected to the bottom side of the support platform (1), and the input ends of the three water pumps 2 (18) are all fixedly connected to the water tank (5); Delivery pipe three (19), wherein three delivery pipes three (19) are provided, one end of the three delivery pipes three (19) is fixedly connected to one end of the three desulfurization towers (4), and the other end of the three delivery pipes three (19) is fixedly connected to the output end of the three water pumps two (18); Spray head two (20), there are three spray heads two (20), the three spray heads two (20) are fixedly connected to one end of the three conveying pipes three (19), and the output ends of the three spray heads two (20) are respectively connected to the three desulfurization towers (4).

6. A flue gas desulfurization and denitrification purification and emission device according to claim 5, characterized in that: A cavity is formed between every two of the second slow flow plates (14) and the two first slow flow plates (8), and activated carbon filter cotton is placed in the cavity.

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