A desulfurization, denitration and dust removal purification tower
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING JINBAO ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-08-07
AI Technical Summary
[0005]针对现有技术的不足，本实用新型提供了一种脱硫脱硝除尘净化塔，解决了现有的脱硫脱硝除尘净化塔对烟气进行净化后，排出的气体中含有大量水蒸气，水蒸气遇冷液化形成液滴，导致净化塔周边积水和腐蚀，且水蒸气直接排放可能会干扰检测仪，进而导致污染物浓度测量值不准确的问题
[0013]本实用新型提供了一种脱硫脱硝除尘净化塔。具备以下有益效果：该脱硫脱硝除尘净化塔，通过蓄水罐、吸水泵、第一连接管、冷却板、透气孔、冷却箱和循环管之间的配合，实现了在烟气进行净化时，吸水泵带动第一连接管对冷却板进行供水，通过冷却箱带动循环管对蓄水罐进行供水，冷却板对水蒸气进行液化的效果，解决了现有的脱硫脱硝除尘净化塔对烟气进行净化后，排出的气体中含有大量水蒸气，水蒸气遇冷液化形成液滴，导致净化塔周边积水和腐蚀，且水蒸气直接排放可能会干扰检测仪，进而导致污染物浓度测量值不准确的问题。
Smart Images
Figure CN224599060U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of flue gas desulfurization, denitrification and dust removal technology, specifically a desulfurization, denitrification and dust removal purification tower. Background Technology
[0002] With the acceleration of industrialization, air pollution has become one of the major environmental issues of global concern. Sulfur dioxide, nitrogen oxides and dust generated in industrial production not only pose a serious threat to human health, but are also the main cause of acid rain. Therefore, developing efficient flue gas desulfurization, denitrification and dust removal technologies has become the key to environmental protection.
[0003] Existing desulfurization, denitrification, and dust removal purification towers purify pollutants through methods such as spray absorption liquid, catalytic reduction reaction, and physical dust removal;
[0004] However, after the existing desulfurization, denitrification and dust removal purification towers purify the flue gas, the discharged gas contains a large amount of water vapor. When the water vapor encounters cold, it liquefies into droplets, causing water accumulation and corrosion around the purification tower. Furthermore, the direct emission of water vapor may interfere with the detector, leading to inaccurate pollutant concentration measurements. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a desulfurization, denitrification, and dust removal purification tower. This solves the problem that after the existing desulfurization, denitrification, and dust removal purification towers purify flue gas, the discharged gas contains a large amount of water vapor. When the water vapor encounters cold, it liquefies to form droplets, leading to water accumulation and corrosion around the purification tower. Furthermore, the direct emission of water vapor may interfere with the detector, resulting in inaccurate pollutant concentration measurements.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a desulfurization, denitrification, and dust removal purification tower, comprising a base, a support frame fixedly connected to the top of the base, a tower body fixedly connected to the inner wall of the support frame, and an exhaust port connected to one side of the top of the tower body. The desulfurization, denitrification, and dust removal purification tower also includes a cooling device; the cooling device is located at the top of the outer wall of the tower body; a filter device is located below the tower body; a purification device is located between the cooling device and the filter device; and a dust removal device is located between the filter device and the purification device. The dust removal device removes dust from the flue gas, the purification device desulfurizes and denitrifies the flue gas, the cooling device liquefies water vapor in the flue gas into water, and the filter device recovers the spray liquid.
[0007] Preferably, the cooling device includes a water storage tank; the water storage tank is fixedly connected to the top of the outer wall of the tower body near the exhaust port; a water pump is disposed inside the water storage tank; a first connecting pipe is connected to the output end of the water pump and extends to the outside of the water storage tank; a cooling plate is fixedly connected to the top of the inner wall of the tower body and connected to the first connecting pipe; vent holes are equidistantly opened on the surface of the cooling plate; a cooling box is fixedly connected to the top of the outer wall of the tower body away from the exhaust port and connected to the side of the cooling plate away from the first connecting pipe; a circulation pipe connects the cooling box and the water storage tank; wherein, the cooling plate is cooled by the water storage tank, the water pump, the first connecting pipe, the cooling plate, the vent holes, the cooling box, and the circulation pipe, and the cooling plate liquefies the water vapor in the flue gas into water.
[0008] Preferably, the filtration device includes a filter box; the filter box is fixedly connected to the top of the base; a second connecting pipe connects the tower body and the filter box; a filter screen is fixedly connected to the top of the inner wall of the filter box; an inclined surface is formed at the bottom of the inner wall of the filter box; a filter ball is placed between the inclined surface and the filter screen; a drain outlet connects to one side of the bottom of the filter box; and an aerator is fixedly connected to one side of the top of the base and connected to the side of the filter box away from the circulation pipe; wherein the spray liquid is filtered and recovered through the filter box, the second connecting pipe, the filter screen, the inclined surface, the filter ball, the drain outlet, and the aerator.
[0009] Preferably, the purification device includes a water inlet; the water inlet is connected to the top of the tower body; a water distribution tank is located inside the tower body and connected to the bottom of the water inlet; multiple water spray nozzles are provided and are equidistantly connected to the bottom of the water distribution tank; a water distribution plate is located below the water spray nozzles and is fixedly connected to the inner wall of the tower body; an ammonia generator is located below the water storage tank and is fixedly connected to the outer wall of the tower body; a third connecting pipe connects the ammonia generator and the tower body and extends into the interior of the tower body; a cover is fixedly connected to the inner wall of the tower body near the ammonia generator and is connected to the end of the third connecting pipe extending into the tower body; a heating rod is fixedly connected to the inner wall of the cover; a temperature measuring device is located on the side of the cover away from the ammonia generator; wherein, the flue gas is desulfurized through the water inlet, water distribution tank, water spray nozzles and water distribution plate, and the flue gas is denitrified through the ammonia generator, third connecting pipe, cover, heating rod and temperature measuring device.
[0010] Preferably, the temperature measuring device includes a delivery pipe; the delivery pipe is connected to the side of the hood away from the ammonia generator; an infrared thermometer is fixedly connected to the inner wall of the delivery pipe away from the hood; a thermocouple is connected to the top of the delivery pipe; and a controller is fixedly connected to the outer wall of the tower away from the ammonia generator; wherein the temperature of the ammonia is measured through the delivery pipe, the infrared thermometer, the thermocouple, and the controller.
[0011] Preferably, the dust removal device includes a cyclone dust collector; the cyclone dust collector is disposed inside the tower body; a baffle plate is fixedly connected to the top of the cyclone dust collector; an air inlet penetrates the tower body and extends into the interior of the tower body, and is connected to the side of the cyclone dust collector away from the ammonia generator; a dust collection box is fixedly connected to the interior of the tower body 7 and is connected to the bottom of the cyclone dust collector; wherein, dust particles in the flue gas are removed by means of the cyclone dust collector, the baffle plate, the air inlet, and the dust collection box.
[0012] Beneficial effects
[0013] This utility model provides a desulfurization, denitrification, and dust removal purification tower. It has the following beneficial effects: Through the coordination of a water storage tank, a water pump, a first connecting pipe, a cooling plate, vent holes, a cooling box, and a circulation pipe, this desulfurization, denitrification, and dust removal purification tower achieves the following: during flue gas purification, the water pump drives the first connecting pipe to supply water to the cooling plate, and the cooling box drives the circulation pipe to supply water to the water storage tank. The cooling plate liquefies the water vapor, thus solving the problem that existing desulfurization, denitrification, and dust removal purification towers, after purifying flue gas, discharge gases containing a large amount of water vapor. This water vapor liquefies upon cooling, forming droplets, leading to water accumulation and corrosion around the purification tower. Furthermore, direct emission of water vapor may interfere with detectors, resulting in inaccurate pollutant concentration measurements.
[0014] Through the coordination of the filter box, the second connecting pipe, the filter screen, the inclined plane, the filter ball, and the drain outlet, the spray liquid and the liquefied water fall to the bottom of the tower by gravity and enter the filter box through the second connecting pipe. The filter screen and the filter ball effectively filter the spray liquid and the liquefied water. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 for Figure 1 An exterior schematic diagram;
[0017] Figure 3 for Figure 1 Schematic diagram of the structure of the water storage tank, cooling plate and cooling box;
[0018] Figure 4 for Figure 1 A schematic diagram of the structure of the filter box, filter screen, and filter;
[0019] Figure 5 for Figure 1 A schematic diagram of the structure of the conveying pipe, controller, and tower.
[0020] In the diagram: 1. Base; 2. Cooling device; 21. Water tank; 22. Water pump; 23. First connecting pipe; 24. Cooling plate; 25. Vent hole; 26. Cooling box; 27. Circulation pipe; 3. Filter device; 31. Filter box; 32. Second connecting pipe; 33. Filter screen; 34. Inclined surface; 35. Filter ball; 36. Drain outlet; 4. Purification device; 41. Water inlet; 42. Water distribution tank; 43. Spray nozzle ; 44. Water distribution plate; 45. Ammonia generator; 46. Third connecting pipe; 47. Cover; 48. Heating rod; 49. Temperature measuring device; 491. Conveying pipe; 492. Infrared thermometer; 493. Thermocouple; 494. Controller; 5. Dust removal device; 51. Cyclone dust collector; 52. Water baffle; 53. Air inlet; 54. Dust collection box; 55. Aerator; 6. Support frame; 7. Tower body; 8. Exhaust port. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Existing desulfurization, denitrification, and dust removal purification towers purify flue gas, but the discharged gas contains a large amount of water vapor. When the water vapor cools, it liquefies into droplets, causing water accumulation and corrosion around the purification tower. Furthermore, the direct emission of water vapor may interfere with the detector, leading to inaccurate pollutant concentration measurements.
[0023] In view of this, the present invention provides a desulfurization, denitrification, and dust removal purification tower. This tower, through the coordination of a water storage tank, a water pump, a first connecting pipe, a cooling plate, vent holes, a cooling box, and a circulation pipe, achieves the effect of supplying water to the cooling plate via the water pump through the first connecting pipe during flue gas purification, and supplying water to the water storage tank via the circulation pipe through the cooling box. The cooling plate liquefies the water vapor, thus solving the problem that existing desulfurization, denitrification, and dust removal purification towers, after purifying flue gas, discharge gases containing a large amount of water vapor. This water vapor liquefies upon cooling, forming droplets, leading to water accumulation and corrosion around the purification tower. Furthermore, direct emission of water vapor may interfere with the detector, resulting in inaccurate pollutant concentration measurements.
[0024] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly introduced below.
[0025] Example 1, by Figure 1-5As can be seen, the desulfurization, denitrification, and dust removal purification tower in this case includes a base 1, a support frame 6 fixedly connected to the top of the base 1, a tower body 7 fixedly connected to the inner wall of the support frame 6, and an exhaust port 8 connected to one side of the top of the tower body 7. The desulfurization, denitrification, and dust removal purification tower also includes a cooling device 2, a filter device 3, a purification device 4, and a dust removal device 5. The cooling device 2 is located on the top of the outer wall of the tower body 7; the filter device 3 is located below the tower body 7; the purification device 4 is located between the cooling device 2 and the filter device 3; and the dust removal device 5 is located between the filter device 3 and the purification device 4. The dust removal device 5 removes dust from the flue gas, the purification device 4 desulfurizes and denitrifies the flue gas, the cooling device 2 liquefies water vapor in the flue gas into water, and the filter device 3 recovers the spray liquid.
[0026] In the specific implementation process, it is worth noting that the base 1 is made of six channel steels spliced together to ensure the overall stability and support capacity of the base 1. The support frame 6 is made of carbon steel or cast iron to ensure that the support frame 6 can provide stable support for the tower body 7. The tower body 7 is made of 316L stainless steel to ensure the corrosion resistance and oxidation resistance of the tower body 7. The bottom of the tower body 7 is connected to a manhole. When it is necessary to clean the inside of the tower body 7, the staff enters the inside of the tower body 7 through the manhole. The dust removal device 5 physically removes solid particles such as dust, soot and fly ash in the flue gas. The purification device 4 removes nitrogen oxides and sulfides in the flue gas or converts them into harmless substances to meet emission standards. The cooling device 2 cools the water vapor in the flue gas after desulfurization and denitrification, thereby changing it from a gaseous state to a liquid state and dripping due to gravity.
[0027] Furthermore, the cooling device 2 includes a water storage tank 21, a water pump 22, a first connecting pipe 23, a cooling plate 24, a vent 25, a cooling box 26, a circulation pipe 27, and an aerator 55; the water storage tank 21 is fixedly connected to the top of the outer wall of the tower body 7 near the exhaust port 8; the water pump 22 is located inside the water storage tank 21; the first connecting pipe 23 connects to the output end of the water pump 22 and extends to the outside of the water storage tank 21; the cooling plate 24 is fixedly connected to the top of the inner wall of the tower body 7 and connects to the first connecting pipe 23; the vent 25 connects to the exhaust port 8; the cooling plate 26 is fixedly connected to the top of the inner wall of the tower body 7 and connects to the first connecting pipe 23; the cooling plate 24 connects to the exhaust port 25; the cooling plate 25 connects to the exhaust port 26; the cooling plate 26 connects to the exhaust port 27; the cooling plate 27 connects to the exhaust port 28 ...8; the cooling plate 27 connects to the exhaust port 28; the cooling plate 26 connects to the exhaust port 28; the cooling plate 2 Vent holes 25 are equidistantly opened on the surface of cooling plate 24; cooling box 26 is fixedly connected to the top of the outer wall of tower body 7 away from exhaust port 8, and connected to the side of cooling plate 24 away from first connecting pipe 23; circulation pipe 27 is connected between cooling box 26 and water storage tank 21; wherein, cooling plate 24 is cooled by water storage tank 21, water pump 22, first connecting pipe 23, cooling plate 24, vent holes 25, cooling box 26, circulation pipe 27 and aerator 55, and cooling plate 24 liquefies water vapor in flue gas into water;
[0028] In the specific implementation process, it is worth noting that the cooling plate 24 is corrugated overall, hollow inside, and has several vent holes 25 evenly spaced on its surface. It should be emphasized that the vent holes 25 only serve as gas flow channels and are independent of and not connected to the hollow structure inside the cooling plate 24. This allows gas to penetrate the cooling plate 24 while ensuring that the coolant inside the hollow structure is not disturbed by external gas. The cooling plate 24 is made of aluminum alloy, which has corrosion resistance and good thermal conductivity. The water tank 21 contains coolant. A replenishment pipe is connected to the top of the water tank 21, and a drain pipe is connected to the bottom. The replenishment pipe replenishes the water tank 21, and the drain pipe empties the coolant inside. The water pump 22 is a USK-ZK type, ensuring that it meets actual usage requirements. Several aluminum alloy heat sinks are fixedly connected to the outer wall of the cooling box 26 at equal intervals, and fans are installed on the front of the aluminum alloy heat sinks to accelerate airflow. This improves the heat exchange efficiency between the aluminum alloy heat sink and the air, and the heat on the surface of the aluminum alloy heat sink is quickly carried away, thereby effectively reducing the temperature inside the cooling box 26. Through the cooperation between the water storage tank 21, the water pump 22, the first connecting pipe 23, the cooling plate 24 and the vent 25, the water pump 22 drives the first connecting pipe 23 to draw the coolant inside the water storage tank 21 into the cooling plate 24. Through the cooperation between the cooling box 26 and the circulation pipe 27, the high-temperature coolant enters the cooling box 26 through the cooling plate 24 and is transported back to the water storage tank 21 through the circulation pipe 27. Under the action of the cooling device 2, the cooling plate 24 can be continuously cooled. When the high-temperature flue gas passes through the vent 25 on the cooling plate 24, the water vapor in it rapidly decreases in temperature and reaches the liquefaction condition, thus changing from a gaseous state to a liquid state, condensing into water droplets that adhere to the surface of the cooling plate 24 and drip onto the bottom of the tower body 7, achieving effective liquefaction of water vapor in the flue gas and reducing the humidity of the flue gas.
[0029] Furthermore, the filtration device 3 includes a filter box 31, a second connecting pipe 32, a filter screen 33, an inclined surface 34, a filter ball 35, and a drain outlet 36; the filter box 31 is fixedly connected to the top of the base 1; the second connecting pipe 32 connects the tower body 7 and the filter box 31; the filter screen 33 is fixedly connected to the top of the inner wall of the filter box 31; the inclined surface 34 is opened at the bottom of the inner wall of the filter box 31; the filter ball 35 is placed between the inclined surface 34 and the filter screen 33; the drain outlet 36 connects to one side of the bottom of the filter box 31; the aerator 55 is fixedly connected to one side of the top of the base 1 and connects to the side of the filter box 31 away from the circulation pipe 27, and the aerator 55 is an impeller-type aerator; wherein, the spray liquid is filtered and recovered through the filter box 31, the second connecting pipe 32, the filter screen 33, the inclined surface 34, the filter ball 35, the drain outlet 36, and the aerator 55;
[0030] In the specific implementation process, it is worth noting that the front of the filter box 31 is hinged with a sliding door. The filter screen 33 is made of rigid plastic wire mesh to ensure its stability and corrosion resistance. The two sides of the filter screen 33 are fixed to the inner wall of the filter box 31 by bolts. When the filter screen 33 needs to be cleaned, the staff can remove it by using the bolts and clean it. The mesh size of the filter screen 33 is selected according to the actual usage requirements, as long as it meets the working requirements. The filter balls 35 are spheres of different sizes made of activated carbon to ensure that the filter balls 35 can adsorb sulfur compounds in the water. When the filter screen 33 or filter balls 35 need to be cleaned, they can be cleaned and replaced by opening the sliding door. The drain outlet 36 can be connected to a storage device such as a water storage tank or water storage container. The filtered water is stored, and the aerator 55 oxygenates the inside of the water storage tank 21. Through the cooperation between the filter box 31, the second connecting pipe 32, the filter screen 33, the inclined surface 34, the filter ball 35 and the drain outlet 36, the spray liquid and the liquefied water first enter the interior of the filter box 31 through the second connecting pipe 32. First, they pass through the filter screen 33, which filters out the larger suspended solids and sediments in the liquid, and then they fall to the bottom of the filter box 31. The filter ball 35 filters, decolorizes and deodorizes the spray liquid and the liquefied water. Under the guidance of the inclined surface 34, they are discharged from the filter box 31 through the drain outlet 36. Under the action of the filtration device 3, solid impurities and sulfides in the spray liquid and the liquefied water are effectively separated, realizing the recycling of the spray liquid and reducing the operating cost of the desulfurization, denitrification and dust removal purification tower.
[0031] Example 2, by Figure 1-5It can be seen that the surface of the water distribution plate 44 is equidistantly connected with several connecting columns. The interior of the connecting columns is a hollow structure. Water above the water distribution plate 44 and air below it both circulate through the connecting columns. The purification device 4 includes an inlet 41, a water distribution tank 42, spray nozzles 43, a water distribution plate 44, an ammonia generator 45, a third connecting pipe 46, a cover 47, a heating rod 48, and a temperature measuring device 49. The inlet 41 is connected to the top of the tower body 7. The water distribution tank 42 is located inside the tower body 7 and is connected to the bottom of the inlet 41. Multiple spray nozzles 43 are provided and are equidistantly connected to the bottom of the water distribution tank 42. The water distribution plate 44 is located below the spray nozzles 43 and is fixedly connected to the inner wall of the tower body 7. The ammonia generator 45 is provided with... The system is positioned below the water storage tank 21 and fixedly connected to the outer wall of the tower body 7; the third connecting pipe 46 connects the ammonia generator 45 and the tower body 7 and extends into the interior of the tower body 7; the cover 47 is fixedly connected to the inner wall of the tower body 7 near the ammonia generator 45 and is connected to one end of the third connecting pipe 46 extending into the interior of the tower body 7; the heating rod 48 is fixedly connected to the inner wall of the cover 47; the temperature measuring device 49 is located on the side of the cover 47 away from the ammonia generator 45; wherein, the flue gas is desulfurized through the water inlet 41, the water distribution tank 42, the water spray nozzle 43 and the water distribution plate 44, and the flue gas is denitrified through the ammonia generator 45, the third connecting pipe 46, the cover 47, the heating rod 48 and the temperature measuring device 49;
[0032] In the specific implementation process, it is worth noting that the top of the filter box 31 has several connecting holes, through which external air enters the filter box 31. The spray nozzle 43 adopts an atomizing nozzle design, which can disperse the spray liquid into a fine mist. The aerator 55 is a ZY-1.5 model, ensuring that the aerator 55 can meet the actual use requirements. Through the cooperation between the water inlet 41, the water distribution tank 42, the spray nozzle 43 and the water distribution plate 44, the water inlet 41 is first connected to the external spray liquid. The storage device includes a spraying liquid that enters the distribution tank 42 through the inlet 41 and is atomized and sprayed out by the nozzles 43. The atomized spraying liquid comes into full contact with the flue gas and undergoes a chemical reaction to desulfurize the flue gas. The ammonia generator 45 is a ZLCO type, ensuring it meets actual usage requirements. The heating rod 48 is an armored MI type heating cable, featuring high-efficiency insulation, flame retardancy, and a lightweight insulation layer, suitable for flue gas denitrification in power plants and chemical plants. The coordination between the ammonia generator 45, the third connecting pipe 46, the cover 47, the heating rod 48, and the temperature measuring device 49 is as follows: First, the ammonia generator 45 is connected to an external power supply. The output end of the ammonia generator 45 is connected to the third connecting pipe 46. The ammonia generator 45 blows ammonia onto the surface of the heating rod 48. The heating rod 48 heats the ammonia and catalyzes it. The high-temperature ammonia decomposes nitrogen oxides into nitrogen and water. The temperature measuring device 49 measures the temperature of the heated ammonia to ensure that the temperature of the ammonia meets the requirements for flue gas denitrification. The ammonia absorbs sulfur dioxide in the flue gas to generate ammonium sulfate. The ammonium sulfate dissolves in water and flows into the filter box 31 with the water. The oxygen is delivered to the interior of the filter box 31 by the aerator 55. The ammonium sulfate in the water and the oxygen react chemically and crystallize into a solid on the top of the filter screen 33. In order to prevent excessive crystallization inside the tower body 7, the staff can periodically enter the interior of the tower body 7 through the manhole at the bottom of the outer wall of the tower body 7 to clean the crystals adsorbed on the inner wall of the tower body 7.
[0033] Furthermore, the temperature measuring device 49 includes a delivery pipe 491, an infrared thermometer 492, a thermocouple 493, and a controller 494; the delivery pipe 491 is connected to the side of the enclosure 47 away from the ammonia generator 45; the infrared thermometer 492 is fixedly connected to the inner wall of the delivery pipe 491 away from the enclosure 47; the thermocouple 493 is fixedly connected to the top of the delivery pipe 491; and the controller 494 is fixedly connected to the outer wall of the tower 7 away from the ammonia generator 45. The temperature of the ammonia is measured through the delivery pipe 491, the infrared thermometer 492, the thermocouple 493, and the controller 494. The wiring of the electronic components inside the tower 7 must be laid with explosion-proof flexible tubing to ensure airtightness and prevent external fumes from seeping in. The wiring of the electronic components is connected to an external explosion-proof power distribution cable and connected to an external power source through an explosion-proof distribution box.
[0034] In the specific implementation process, it is worth noting that thermocouple 493 and infrared detector 492 are connected to the analog input port and data transmission interface of controller 494 respectively via shielded cables. The collected temperature signals are converted into electrical or digital signals and transmitted to controller 494. After processing by its internal algorithm, temperature monitoring and control commands are output. The entire conveying tube 491 is made of 316L stainless steel, possessing high temperature resistance and corrosion resistance, ensuring that the conveying tube 491 can meet actual usage requirements. The infrared thermometer 492 is a DOB30 type coaxial laser infrared thermometer, and the thermocouple 493 is an S-type platinum-rhodium alloy temperature sensor. Controller 494... Model 4 is selected according to actual usage requirements, as long as it meets the working requirements. The bottom of thermocouple 493 is connected to the top of delivery pipe 491. Through the cooperation between delivery pipe 491, infrared thermometer 492, thermocouple 493 and controller 494, infrared thermometer 492 can quickly acquire ammonia temperature data through non-contact, while thermocouple 493 can measure ammonia temperature through contact. Through the cooperation between infrared thermometer 492 and thermocouple 493, the temperature of ammonia is accurately measured, and the collected signal is transmitted to controller 494 in real time. After analysis and processing by the built-in algorithm of controller 494, the temperature of heating rod 48 is automatically adjusted, realizing precise control and intelligent monitoring of ammonia temperature.
[0035] Furthermore, the dust removal device 5 includes a cyclone dust collector 51, a baffle plate 52, an air inlet 53, and a dust collection box 54; the cyclone dust collector 51 is disposed inside the tower body 7; the baffle plate 52 is fixedly connected to the top of the cyclone dust collector 51; the air inlet 53 penetrates the tower body 7 and extends into the interior of the tower body 7, and is connected to the side of the cyclone dust collector 51 away from the ammonia generator 45; the dust collection box 54 is fixedly connected to the interior of the tower body 7 and is connected to the bottom of the cyclone dust collector 51; wherein, the dust particles in the flue gas are removed by the cyclone dust collector 51, the baffle plate 52, the air inlet 53, and the dust collection box 54.
[0036] In the specific implementation process, it is worth noting that the cyclone dust collector 51 is composed of a cone, a cylinder and an exhaust pipe. The flue gas rotates in the cylinder, and the dust particles are thrown towards the cylinder wall under centrifugal force. The dust particles gradually decelerate inside the cone. The purified gas is discharged from the cyclone dust collector 51 through the exhaust pipe. The front of the dust collection box 54 is hinged with a sliding door. When the dust collection box 54 is full of dust particles, the sliding door is opened to uniformly process the dust particles inside the dust collection box 54. Through the cooperation between the cyclone dust collector 51, the baffle plate 52, the air inlet 53 and the dust collection box 54, the air inlet 53 is first connected to the external flue gas pipe. The flue gas enters the cyclone dust collector 51 through the air inlet 53. The dust particles enter the dust collection box 54 under the influence of gravity. The baffle plate 52 blocks the spray liquid at the top of the tower body 7 to prevent external liquid from entering the cyclone dust collector 51.
[0037] Specifically, when desulfurizing, denitrifying, and removing dust from flue gas, the inlet 53 is first connected to the external flue gas duct. The flue gas is then removed by a cyclone dust collector 51. After dust removal, the flue gas passes through high-temperature ammonia gas, which denitrates the flue gas. The spray liquid enters the water distribution tank 42 through the water inlet 41 and sprays the flue gas through the spray nozzles 43. The spray liquid falls on the surface of the water distribution plate 44, which increases the contact area between the flue gas and the spray liquid. The flue gas after desulfurization, denitrification, and dust removal moves upward and comes into contact with the cooling plate 24. The cooling plate 24 liquefies the water vapor in the flue gas. The dehumidified gas is then discharged outside the tower body 7 through the vent 25 and the exhaust port 8.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A desulfurization, denitrification, and dust removal purification tower, comprising a base (1), characterized in that: A support frame (6) is fixedly connected to the top of the base (1), and a tower body (7) is fixedly connected to the inner wall of the support frame (6). An exhaust port (8) is connected to one side of the top of the tower body (7). The desulfurization, denitrification, and dust removal purification tower also includes: Cooling device (2) is installed on the top of the outer wall of the tower body (7); A filter device (3) is installed below the tower body (7); The purification device (4) is located between the cooling device (2) and the filter device (3); A dust removal device (5) is installed between a filter device (3) and a purification device (4); The dust removal device (5) removes dust from the flue gas, the purification device (4) desulfurizes and denitrifies the flue gas, the cooling device (2) liquefies the water vapor in the flue gas into water, and the filtration device (3) recovers the spray liquid.
2. The desulfurization, denitrification, and dust removal purification tower according to claim 1, characterized in that: The cooling device (2) includes: A water storage tank (21) is fixedly connected to the top of the outer wall of the tower body (7) near the exhaust port (8); A water pump (22) is installed inside a water storage tank (21); The first connecting pipe (23) is connected to the output end of the water pump (22) and extends to the outside of the water storage tank (21); Cooling plate (24) is fixedly connected to the top of the inner wall of the tower body (7) and connected to the first connecting pipe (23). Ventilation holes (25) are equidistantly provided on the surface of the cooling plate (24); The cooling box (26) is fixedly connected to the top of the outer wall of the tower body (7) on the side away from the exhaust port (8), and is connected to the side of the cooling plate (24) away from the first connecting pipe (23); A circulation pipe (27) is connected between the cooling tank (26) and the water storage tank (21); The cooling plate (24) is cooled by the water storage tank (21), water pump (22), first connecting pipe (23), cooling plate (24), vent hole (25), cooling box (26) and circulation pipe (27), and the cooling plate (24) liquefies the water vapor in the flue gas into water.
3. The desulfurization, denitrification, and dust removal purification tower according to claim 1, characterized in that: The filter device (3) includes: The filter box (31) is fixedly connected to the top of the base (1); The second connecting pipe (32) connects the tower body (7) and the filter box (31); The filter screen (33) is fixedly connected to the top of the inner wall of the filter box (31); An inclined surface (34) is formed at the bottom of the inner wall of the filter box (31); The filter ball (35) is placed between the inclined plane (34) and the filter screen (33); The drain outlet (36) is connected to one side of the bottom of the filter box (31); The aerator (55) is fixedly connected to the top side of the base (1) and connected to the side of the filter box (31) away from the circulation pipe (27); The spray liquid is filtered and recycled through the filter box (31), the second connecting pipe (32), the filter screen (33), the inclined surface (34), the filter ball (35), the drain outlet (36) and the aerator (55).
4. The desulfurization, denitrification, and dust removal purification tower according to claim 2, characterized in that: The purification device (4) includes: The water inlet (41) is connected to the top of the tower body (7); The water distribution tank (42) is located inside the tower body (7) and connected to the bottom of the water inlet (41); Multiple water nozzles (43) are provided and are equidistantly connected to the bottom of the water distribution tank (42); The water distribution plate (44) is located below the water nozzle (43) and is fixedly connected to the inner wall of the tower body (7); An ammonia generator (45) is located below a water storage tank (21) and is fixedly connected to the outer wall of the tower body (7); The third connecting pipe (46) connects the ammonia generator (45) and the tower body (7) and extends into the interior of the tower body (7); The cover (47) is fixedly connected to the inner wall of the tower body (7) on the side near the ammonia generator (45) and connected to one end of the third connecting pipe (46) extending into the tower body (7); Heating rod (48) is fixedly connected to the inner wall of cover (47); Temperature measuring device (49) is installed on the side of the cover (47) away from the ammonia generator (45); The flue gas is desulfurized through the water inlet (41), water distribution tank (42), water spray nozzle (43) and water distribution plate (44), and denitrified through the ammonia generator (45), third connecting pipe (46), cover (47), heating rod (48) and temperature measuring device (49).
5. The desulfurization, denitrification, and dust removal purification tower according to claim 4, characterized in that: The temperature measuring device (49) includes: The delivery pipe (491) is connected to the side of the cover (47) away from the ammonia generator (45); Infrared thermometer (492) is fixedly connected to the inner wall of delivery pipe (491) on the side away from the cover (47); Thermocouple (493) is fixedly connected to the top of delivery pipe (491); The controller (494) is fixedly connected to the outer wall of the tower body (7) on the side away from the ammonia generator (45); The temperature of ammonia is measured by the delivery pipe (491), infrared thermometer (492), thermocouple (493) and controller (494).
6. The desulfurization, denitrification, and dust removal purification tower according to claim 4, characterized in that: The dust removal device (5) includes: Cyclone dust collector (51) is installed inside the tower body (7); A baffle plate (52) is fixedly connected to the top of the cyclone dust collector (51); The air inlet (53) penetrates the tower body (7) and extends into the interior of the tower body (7), and is connected to the side of the cyclone dust collector (51) away from the ammonia generator (45); The dust collection box (54) is fixedly connected to the inside of the tower body (7) and connected to the bottom of the cyclone dust collector (51); The dust particles in the flue gas are removed by the cyclone dust collector (51), the baffle plate (52), the air inlet (53) and the dust collection box (54).