A sludge incineration flue gas purification and deodorization device

Abstract

The present application discloses a sludge incineration flue gas purification and deodorization device, which includes a flue gas inlet pipe, a cyclone separator, a dust removal output pipe, a demisting tower, a demisting input pipe, an activated carbon adsorption tank, a gas output pipe, a biological fermentation tank and a flue gas outlet pipe which are sequentially connected and arranged, wherein two semi-cylindrical containing shells are rotatably arranged in the activated carbon adsorption tank, the containing shells are filled with activated carbon particles, and a plurality of adsorption pores are provided on the top and bottom surfaces of the containing shells, and a driving member for driving the containing shells to rotate is arranged in the activated carbon adsorption tank, and when the containing shells rotate to a certain position, the demisting input pipe and the gas output pipe are both connected and arranged with the adsorption pores. The present application has the effect of improving the separation quality of incineration flue gas.

Description

Technical Field

[0001] The present application relates to the technical field of flue gas separation and treatment, and in particular to a sludge incineration flue gas purification and deodorization device. Background Art

[0002] With the increasing requirements for environmental protection, sludge incineration technology has been widely used in sludge volume reduction and resource utilization. However, sludge incineration produces flue gas containing odorous gases and harmful substances. How to efficiently purify these flue gases has become a key issue in the current field of environmental protection.

[0003] With respect to the above-mentioned related technologies, the inventors believe that the above-mentioned existing flue gas purification technologies mainly include physical adsorption, chemical absorption, catalytic oxidation and other methods. These methods can remove harmful substances in flue gas to a certain extent, but they face problems such as adsorbent saturation, high consumption of chemical agents, and catalyst deactivation. At present, the flue gas purification devices on the market are often inefficient in treating sludge incineration flue gas, and the maintenance cost is high during long-term operation, making it difficult to meet the continuous and stable purification needs. Summary of the invention

[0004] In order to improve the separation quality of incineration flue gas, the present application provides a sludge incineration flue gas purification and deodorization device.

[0005] The present application provides a sludge incineration flue gas purification and deodorization device adopts the following technical solution:

[0006] A sludge incineration flue gas purification and deodorization device, comprising a flue gas inlet pipe, a cyclone separator, a dust removal output pipe, a defogger, a defogger output pipe, an activated carbon adsorption tank, a gas output pipe, a biological fermentation tank and a flue gas outlet pipe which are sequentially connected and arranged, wherein two semi-cylindrical containing shells are rotatably arranged in the activated carbon adsorption tank, the containing shells are filled with activated carbon particles, a plurality of adsorption pores are provided on the top and bottom surfaces of the containing shells, a driving member for driving the containing shell to rotate is provided in the activated carbon adsorption tank, and when the containing shell is rotated to a certain position, the defogger output pipe and the gas output pipe are both connected and arranged with the adsorption pores.

[0007] By adopting the above technical solution, the flue gas passes through the cyclone separation tube for smoke removal, the demister tower for droplet separation, the activated carbon adsorption tank for harmful substance adsorption, and the biological fermentation tank for organic degradation. After the activated carbon particles in one of the containing shells in the activated carbon adsorption tank are adsorbed to saturation, the driving member pushes the other containing shell to correspond to the gas output pipe and the demister output pipe for uninterrupted gas adsorption treatment. Through the mutual cooperation of the flue gas inlet pipe, cyclone separator, dust removal output pipe, demister tower, demister output pipe, activated carbon adsorption tank, gas output pipe, biological fermentation tank and flue gas outlet pipe, the separation quality of the incineration flue gas is improved.

[0008] Optionally, the cyclone separator includes a cyclone separation tube and a temporary storage separation tube connected from top to bottom, the cyclone separation tube includes a first straight pipe section and a first conical pipe section connected from top to bottom, the temporary storage separation tube includes a second straight pipe section and a second conical pipe section connected from top to bottom, the maximum diameter of the temporary storage separation tube is smaller than the maximum diameter of the cyclone separation tube, the bottom end of the temporary storage separation tube is connected to a dust storage box, and a dust storage electric valve is provided between the dust storage box and the second conical pipe section.

[0009] By adopting the above technical solution, the cyclone separation tube and the temporary separation tube realize the secondary separation of the flue gas. The setting of the temporary separation tube reduces the possibility of smoke dust accumulating on the dust storage electric valve and being lifted up and flowing back into the cyclone separation tube.

[0010] Optionally, the bottom end of the first conical pipe section is connected to a dust storage connecting pipe, the bottom end of the dust storage connecting pipe extends to the second straight pipe section, a connecting cone cover is coaxially arranged in the dust storage connecting pipe, a support rod is connected between the connecting cone cover and the inner wall of the dust storage connecting pipe, a plurality of air flow holes are opened on the connecting cone cover, and one end of the dust removal output pipe vertically extends into the top end of the cyclone separation tube.

[0011] By adopting the above technical solution, the cone cover and the dust storage connecting pipe are connected to achieve the isolation of smoke and dust, which helps to reduce the possibility of impurities in the temporary separation tube being lifted up and flowing back into the cyclone separation tube under the action of the upward airflow.

[0012] Optionally, the dust removal output pipe is connected to an end away from the cyclone separation pipe and is provided with a dust removal U-shaped pipe, the dust removal U-shaped pipe includes two vertical pipe sections and a straight pipe section horizontally connected and arranged between the bottom ends of the two vertical pipe sections, a rubber friction ring is slidingly arranged on the outside of the straight pipe section, and the dust removal U-shaped pipe is provided with a driving member for driving the rubber friction ring to slide on the straight pipe section, the dust removal U-shaped pipe is connected to a defogger input pipe at one end away from the dust removal output pipe, and the defogger input pipe is connected to the defogger tower at one end away from the dust removal U-shaped pipe.

[0013] By adopting the above technical solution, the flue gas that has been initially filtered enters the dust removal U-tube, and the rubber friction ring slides back and forth on the straight pipe section to generate static electricity, which adsorbs small-diameter smoke in the flue gas, helping to improve the separation quality of the flue gas.

[0014] Optionally, the activated carbon adsorption tank is divided into two semi-cylindrical adsorption zones and a regeneration zone, the defogger output pipe and the gas output pipe are both connected to the adsorption zone, an activated carbon regeneration assembly is arranged outside the regeneration zone, the activated carbon regeneration assembly includes a steam generator, a steam input pipe, a condensation recovery pipe, a condensation recovery device and a heating jacket, the heating jacket is semi-circular and connected to the outside of the activated carbon adsorption tank, the heating jacket is arranged corresponding to the regeneration zone, the steam input pipe and the condensation recovery pipe are respectively connected to the two ends of the activated carbon adsorption tank and are arranged corresponding to the regeneration zone, the steam generator is connected and arranged at one end of the steam input pipe away from the activated carbon adsorption tank, and the condensation recovery device is connected and arranged at one end of the condensation recovery pipe away from the activated carbon adsorption tank.

[0015] By adopting the above technical solution, after the activated carbon particles in one of the housing shells are saturated with adsorption, the driving member moves the saturated housing shell to the regeneration zone, the steam generator generates steam, and the activated carbon particles are cleaned by steam blowing; the condensation recovery device recovers the desorbed harmful substances, thereby realizing the regeneration of the activated carbon particles and extending their service life. The heating jacket dries the activated carbon particles in the regeneration zone to facilitate the next adsorption.

[0016] Optionally, a rotating frame is arranged in the accommodating shell for rotation along its radial direction, a plurality of stirring rods are arranged on the rotating frame along the radial direction of the accommodating shell, and a driving member for driving the rotating frame to rotate about the central axis of the accommodating shell is arranged on the activated carbon adsorption tank.

[0017] By adopting the above technical solution, when the activated carbon is dried, the rotating frame rotates in the containing shell under the driving action of the driving member, stirring the activated carbon particles therein, which helps to improve the drying quality and uniformity of the activated carbon particles.

[0018] Optionally, a waste heat utilization boiler is provided between the flue gas inlet pipe and the cyclone separator, and a dust removal input pipe is provided between the waste heat utilization boiler and the cyclone separation pipe.

[0019] By adopting the above technical solution, the waste heat utilization boiler reuses the waste heat in the flue gas, which helps to reduce heat waste. On the other hand, the waste heat utilization boiler reduces the temperature of the flue gas, avoids the low-temperature synthesis range of dioxins, and avoids the generation of other harmful gases during the treatment process.

[0020] Optionally, a plurality of groups of defogger plates are arranged in parallel in the defogger tower, an alkali liquid input pipe is connected to the defogger tower, the alkali liquid input pipe is located below the defogger plate, one end of the alkali liquid input pipe away from the defogger tower is connected to an alkali liquid storage tank, an alkali liquid input pump is arranged on the alkali liquid input pipe, the bottom end of the defogger tower is connected to a liquid outlet pipe, and a liquid outlet valve is arranged on the liquid outlet pipe.

[0021] By adopting the above technical solution, multiple groups of demister plates condense and intercept the droplets in the gas, and the droplets fall to the bottom of the demister tower. The alkali liquid input pump is started, and the alkali liquid in the alkali liquid storage tank is input into the demister tower through the alkali liquid input pipe. The alkali liquid neutralizes the acidic gas in the gas. The liquid outlet valve is opened to discharge the liquid in the demister tower through the liquid outlet pipe.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. Through the cooperation of the flue gas inlet pipe, cyclone separator, dust removal output pipe, demister tower, demister output pipe, activated carbon adsorption tank, gas output pipe, biological fermentation tank and flue gas outlet pipe, the separation quality of incineration flue gas is improved;

[0024] 2. The activated carbon regeneration component realizes the cleaning, separation and drying of harmful substances in the activated carbon to facilitate its next adsorption;

[0025] 3. The waste heat utilization boiler reduces the temperature of the flue gas, avoids the low-temperature synthesis range of dioxins, and avoids the generation of other harmful gases during the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment of the present application for embodying a sludge incineration flue gas purification and deodorization device.

[0027] Figure 2 It is a partial cross-sectional view used to illustrate the internal structure of the cyclone separator in the embodiment of the present application.

[0028] Figure 3 yes Figure 1 Enlarged view of part A in the middle.

[0029] Figure 4 It is a partial cross-sectional view used to reflect the internal structure of the defog tower in the embodiment of the present application.

[0030] Figure 5 It is a partial cross-sectional view used to reflect the internal structure of the activated carbon adsorption tank in the embodiment of the present application.

[0031] Explanation of the reference numerals: 1. Flue gas inlet pipe; 2. Waste heat utilization boiler; 3. Dust removal input pipe; 4. Cyclone separator; 41. Cyclone separation pipe; 42. Dust storage connecting pipe; 43. Temporary separation pipe; 44. Dust storage box; 45. Dust storage electric valve; 46. Connecting cone cover; 461. Air flow hole; 47. Support rod; 48. Connecting cone pipe; 481. Filter hole; 5. Dust removal output pipe; 6. Dust removal U-shaped pipe; 61. Vertical pipe section; 62. Straight pipe section; 63. Rubber friction ring; 64. Friction motor; 65. Rotating drive rod; 66. Rotating linkage rod; 7. Demisting input pipe; 8. Demisting tower; 81. Demisting plate; 82. Alkali liquid storage tank; 83. Alkali liquid input pipe; 84. Alkali liquid input pump; 85. Neutralization nozzle; 86. Liquid outlet pipe; 87. Liquid outlet valve; 9. Demisting Output pipe; 10, activated carbon adsorption tank; 101, rotating ring; 102, partition; 103, rotating motor; 104, containing shell; 105, adsorption pore; 106, rotating frame; 107, stirring rod; 108, adsorption area; 109, regeneration area; 11, denitrification input pipe; 12, dry denitrification tower; 13, gas output pipe; 14, biological fermentation tank; 15, flue gas outlet pipe; 16, first diverter valve; 17, second diverter valve; 18, direct current pipe; 19, direct current valve; 20, activated carbon regeneration assembly; 201, steam generator; 202, steam input pipe; 203, condensation recovery pipe; 204, condensation recovery device; 205, heating jacket; 206, rotating gear ring; 207, connecting magnet; 208, adsorption motor; 209, driving gear. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 The present application is further described in detail. The present application provides a sludge incineration flue gas purification and deodorization device, which has the effect of improving the separation quality of the incineration flue gas.

[0033] Reference Figure 1 A sludge incineration flue gas purification and deodorization device includes a flue gas inlet pipe 1, a waste heat utilization boiler 2, a dust removal input pipe 3, a cyclone separator 4, a dust removal output pipe 5, a dust removal U-shaped pipe 6, a demisting input pipe 7, a demisting tower 8, a demisting output pipe 9, an activated carbon adsorption tank 10, a denitrification input pipe 11, a dry denitrification tower 12, a gas output pipe 13, a biological fermentation tank 14 and a flue gas outlet pipe 15 which are connected in sequence from beginning to end.

[0034] Reference Figure 1 and Figure 2The cyclone separator 4 includes a cyclone separation pipe 41, a dust storage connecting pipe 42 and a temporary separation pipe 43 which are connected in sequence from top to bottom. The cyclone separation pipe 41 includes a first straight pipe section and a first conical pipe section which are connected in sequence from top to bottom, and the first straight pipe section is connected in sequence with the dust removal input pipe 3. The temporary separation pipe 43 includes a second straight pipe section and a second conical pipe section which are connected in sequence from top to bottom, one end of the dust storage connecting pipe 42 is connected in sequence with the bottom end of the first conical pipe section, and the other end extends into the second straight pipe section, and the length and diameter of the first straight pipe section are both greater than the second straight pipe section. The bottom end of the second conical pipe section is connected with a dust storage box 44, and the bottom end of the second conical pipe section is provided with a dust storage electric valve 45. A connecting cone cover 46 is coaxially provided in the inner cavity of the dust storage connecting pipe 42, and the diameter of the connecting cone cover 46 is smaller than the inner diameter of the dust storage connecting pipe 42. A plurality of support rods 47 are fixedly connected between the edge of the connecting cone cover 46 and the inner ring wall of the dust storage connecting pipe 42 , and a plurality of air flow holes 461 are opened on the connecting cone cover 46 .

[0035] Reference Figure 2 and Figure 3 , one end of the dust removal output pipe 5 extends into the cyclone separation pipe 41 along the vertical direction, and one end of the dust removal output pipe 5 located in the cyclone separation pipe 41 is connected to a connecting cone pipe 48, which is in the shape of an inverted cone, and has a plurality of filter holes 481. The end of the dust removal output pipe 5 extending out of the cyclone separator 4 is connected to the dust removal U-shaped pipe 6 through a connecting flange, and the dust removal U-shaped pipe 6 includes two vertically arranged vertical pipe sections 61 and a straight pipe section 62 horizontally connected and arranged between the bottom ends of the two vertical pipe sections 61. The straight pipe section 62 is made of metal material, and the outer sliding sleeve of the straight pipe section 62 is provided with a rubber friction ring 63. A friction motor 64 is provided on the dust removal U-shaped pipe 6, and the output shaft of the friction motor 64 is connected to a rotating drive rod 65 in a transmission manner, and the end of the rotating drive rod 65 away from the friction motor 64 is rotatably connected to a rotating linkage rod 66, and the end of the rotating linkage rod 66 away from the rotating drive rod 65 is rotatably connected to the rubber friction ring 63.

[0036] Reference Figure 1 and Figure 3 The end of the dust removal U-shaped pipe 6 away from the dust removal output pipe 5 is connected to the demisting input pipe 7 through a connecting flange. A first diverter valve 16 is provided on the pipe section of the dust removal output pipe 5 away from the cyclone separator 4, and a second diverter valve 17 is provided on the pipe section of the demisting input pipe 7 close to the dust removal U-shaped pipe 6. A direct current pipe 18 is connected between the dust removal output pipe 5 and the demisting input pipe 7, and a direct current valve 19 is provided at both ends of the direct current pipe 18 in the length direction.

[0037] Reference Figure 1 and Figure 4The demisting input pipe 7 is connected to the bottom end of the demisting tower 8, and two demisting plates 81 are horizontally connected in the demisting tower 8. An alkali liquid storage tank 82 is arranged outside the demisting tower 8, and an alkali liquid input pipe 83 is connected to the alkali liquid storage tank 82, and an alkali liquid input pump 84 is arranged on the alkali liquid input pipe 83. A plurality of neutralization nozzles 85 are connected to the alkali liquid input pipe 83 along its length direction, and the neutralization nozzles 85 are connected to the demisting tank, and the neutralization nozzles 85 are located below the two demisting plates 81. The bottom end of the demisting tower 8 is connected to a liquid outlet pipe 86, and a liquid outlet valve 87 is arranged on the liquid outlet pipe 86.

[0038] Reference Figure 1 and Figure 5 The activated carbon adsorption tank 10 includes a tank body with an opening at the top and a tank cover detachably connected to the top of the tank body. Two rotating rings 101 are arranged in parallel in the activated carbon adsorption tank 10. The two rotating rings 101 correspond to the inner top wall and the inner bottom wall of the activated carbon adsorption tank 10 and are arranged in a close fit. A partition 102 is vertically fixedly connected between the two rotating rings 101. The setting direction of the partition 102 coincides with the diameter direction of the activated carbon adsorption tank 10. A rotating motor 103 is connected to the bottom surface of the activated carbon adsorption tank 10. The output shaft of the rotating motor 103 vertically penetrates the activated carbon adsorption tank 10 upward and is connected to the partition 102. A housing 104 is arranged on both sides of the partition 102. The housing 104 is inserted between the two rotating rings 101. The housing 104 is semi-cylindrical and hollow. A plurality of adsorption pores 105 are opened at the top and bottom of the housing 104. The housing 104 is filled with activated carbon particles, and the particle size of the activated carbon particles is larger than the diameter of the adsorption pores 105. A rotating frame 106 is arranged in the housing 104 along its radial direction, and the rotating frame 106 can rotate with the center position of the housing 104 as the axis. A plurality of stirring rods 107 are connected in parallel to the rod section of the rotating frame 106 close to its inner ring wall, and the stirring rods 107 are arranged along the radial direction of the housing 104.

[0039] Reference Figure 1 and Figure 5The activated carbon adsorption tank 10 includes two semi-cylindrical adsorption areas 108 and a regeneration area 109. One end of the demisting output pipe 9 is connected to the bottom end of the activated carbon adsorption tank 10 and communicated with the adsorption area 108. One end of the denitrification input pipe 11 is connected to the top of the activated carbon adsorption tank 10 and communicated with the adsorption area 108. An activated carbon regeneration assembly 20 is arranged outside the regeneration area 109. The activated carbon regeneration assembly 20 includes a steam generator 201, a steam input pipe 202, a condensation recovery pipe 203, a condensation recovery device 204, a heating jacket 205, a rotating gear ring 206, a connecting magnet 207, an adsorption motor 208 and a driving gear 209. The heating jacket 205 is semicircular and connected to the outside of the regeneration zone 109. The two ends of the steam input pipe 202 correspond to and are connected to the steam generator 201 and the regeneration zone 109 of the activated carbon adsorption tank 10. The two ends of the condensation recovery pipe 203 correspond to and are connected to the condensation recovery device 204 and the regeneration zone 109 of the activated carbon adsorption zone 108. The steam input pipe 202 is connected to the bottom end of the activated carbon adsorption tank 10, and the condensation recovery pipe 203 is connected to the top end of the activated carbon adsorption tank 10.

[0040] Reference Figure 1 and Figure 5 The rotating gear ring 206 is rotatably sleeved on the outside of the activated carbon adsorption tank 10, the connecting magnet 207 is vertically connected to the top of the rotating gear ring 206, and the connecting magnet 207 is arranged in contact with the outer ring wall of the heating jacket 205. The output shaft of the adsorption motor 208 is transmission-connected with the driving gear 209, and the driving gear 209 is meshedly connected with the rotating gear ring 206, and the rotating frame 106 is made of magnetic metal material.

[0041] Reference Figure 1 When the sludge incineration flue gas is treated, the incineration flue gas enters the waste heat utilization boiler 2 through the flue gas inlet pipe 1, and the waste heat utilization boiler 2 reuses the waste heat in the incineration flue gas, thereby reducing energy waste. In addition, the waste heat utilization boiler 2 reduces the temperature of the incineration flue gas, avoids the low-temperature synthesis range of dioxins, and reduces the possibility of generating other harmful gases during the treatment process.

[0042] Reference Figure 1 and Figure 2, the flue gas after preliminary cooling enters the cyclone separator 4 through the dust removal input pipe 3, and the flue gas undergoes primary separation in the cyclone separation pipe 41 to separate the gas from the impurities therein. The gas after primary separation enters the temporary storage separation pipe 43 through the gap between the dust storage connecting pipe 42 and the connecting cone cover 46 for secondary separation, and the fixed impurities therein enter the dust storage box 44 for temporary storage. The setting of the temporary storage separation pipe 43 reduces the possibility of dust in the airflow accumulating on the dust storage electric valve 45, and being lifted up again and flowing out of the cyclone separator 4 under the drive of the airflow. The raised dust is blocked by the top of the second straight pipe section and the bottom of the dust storage connecting pipe 42, reducing the possibility of dust flowing back into the cyclone separation pipe 41. The setting of the connecting cone cover 46 and the air flow hole 461 thereon ensures that the airflow can flow upward normally, and the dust is blocked in one direction, which helps to improve the dust separation efficiency of the cyclone separator 4.

[0043] Reference Figure 2 and Figure 3 , the separated flue gas flows out of the cyclone separator 4 through the connecting cone 48 and the dust removal output pipe 5 and enters the dust removal U-shaped pipe 6. At this time, the two DC valves 19 are in a closed state, and the first diverter valve 16 and the second diverter valve 17 are in an open state. The friction motor 64 starts to drive the rotating drive rod 65 to rotate, and the rotating linkage rod 66 swings under the drive of the rotating drive rod 65, driving the rubber friction ring 63 connected to it to slide back and forth on the straight pipe section 62. The rubber friction ring 63 and the straight pipe section 62 rub to generate static electricity, and electrostatically adsorb the small-diameter smoke remaining in the flue gas, further reducing the impurity content in the gas. When the dust removal U-shaped pipe 6 needs to be cleaned, the first diverter valve 16 and the second diverter valve 17 are closed, and the two DC valves 19 are opened. The dust removal U-shaped pipe 6 is removed for cleaning, and the flue gas directly flows into the demisting input pipe 7 through the DC pipe 18.

[0044] Reference Figure 1 and Figure 4 , the airflow enters the demisting tower 8 through the demisting input pipe 7, the alkali liquid input pump 84 is started, and the alkali liquid in the alkali liquid storage tank 82 is sprayed into the demisting tower 8 through the alkali liquid input pipe 83 and the neutralization nozzle 85. The alkali liquid neutralizes the acidic harmful gases such as hydrogen sulfide and sulfur dioxide in the flue gas, which helps to improve the treatment quality of the gas. The neutralized gas is filtered through two demisting plates 81, and the demisting plates 81 intercept and condense the droplets in the gas. The droplets generated by the condensation fall down, and the liquid in the demisting tower 8 is discharged through the direct current pipe 18 by opening the direct current valve 19.

[0045] Reference Figure 1 and Figure 5, the gas after the demisting operation flows into the activated carbon adsorption tank 10 through the demisting output pipe 9, and the gas enters one of the corresponding housings 104 through the adsorption pores 105, and the activated carbon particles in the housing 104 adsorb other harmful impurities and residual liquid in the gas. After the activated carbon particles in the housing 104 are adsorbed to saturation, the rotating motor 103 is started, driving the partition 102 to rotate 180°, and the other housing 104 corresponds to the demisting output pipe 9, so as to achieve uninterrupted adsorption and filtration of the gas. The saturated housing 104 moves to the regeneration zone 109, and the heating jacket 205 heats the activated carbon particles in the housing 104. The steam generator 201 generates steam, which helps to further clean the activated carbon particles through steam purging; the condensation recovery device 204 condenses and recovers the desorbed harmful substances, thereby achieving the regeneration of the activated carbon particles and extending their service life. The setting of the heating jacket 205 realizes the drying of the activated carbon particles in the regeneration zone 109, so as to facilitate the next adsorption. When the activated carbon particles are dried, the adsorption motor 208 starts to drive the driving gear 209 to rotate, and the driving gear 209 drives the rotating ring gear 206 and the connecting magnet 207 to rotate. The connecting magnet 207 and the rotating frame 106 in the containing shell 104 are adsorbed on each other, driving the rotating frame 106 to rotate in the containing shell 104. The stirring rod 107 stirs the activated carbon particles in the containing shell 104, which helps to improve the uniformity of drying.

[0046] Reference Figure 1 The adsorbed gas enters the dry denitrification tower 12 through the denitrification input pipe 11 to remove nitrogen oxides. The denitrified gas enters the biological fermentation tank 14 through the gas output pipe 13 for final degradation and is finally discharged through the flue gas outlet pipe 15.

[0047] The implementation principle of a sludge incineration flue gas purification and deodorization device in the embodiment of the present application is as follows: the incineration flue gas enters the waste heat utilization boiler 2 for cooling and waste heat utilization. The flue gas enters the cyclone separator 4 for smoke and dust separation. The separated flue gas enters the dust removal U-tube 6, and the rubber friction ring 63 and the straight pipe section 62 rub to generate static electricity, and electrostatically adsorb the small-diameter smoke remaining in the flue gas. The airflow enters the defogger 8, and the alkaline solution is sprayed into the defogger 8 through the neutralization nozzle 85 to neutralize the acidic gas. The defogger plate 81 intercepts and condenses the droplets in the gas, and the droplets generated by the condensation fall down, and the liquid in the defogger 8 is discharged through the direct current pipe 18 by opening the direct current valve 19.

[0048] The gas flows into the activated carbon adsorption tank 10, and the activated carbon particles adsorb other harmful impurities and residual liquid in the gas. The gas enters the dry denitration tower 12 to remove nitrogen oxides. The denitrified gas enters the biological fermentation tank 14 through the gas output pipe 13 for final degradation, and is finally discharged through the flue gas outlet pipe 15.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sludge incineration flue gas purification and deodorization device, characterized in that: The invention comprises a flue gas inlet pipe (1), a cyclone separator (4), a dust removal output pipe (5), a demister tower (8), a demister output pipe (9), an activated carbon adsorption tank (10), a gas output pipe (13), a biological fermentation tank (14) and a flue gas outlet pipe (15) which are sequentially connected and arranged, wherein two semi-cylindrical containing shells (104) are rotatably arranged in the activated carbon adsorption tank (10), the containing shells (104) are filled with activated carbon particles, and a plurality of adsorption air holes (105) are provided on the top and bottom surfaces of the containing shells (104), and a driving member for driving the containing shells (104) to rotate is arranged in the activated carbon adsorption tank (10), the demister output pipe (9) and the gas output pipe (13) The cyclone separator (4) comprises a cyclone separation tube (41) and a temporary separation tube (43) which are connected from top to bottom. The dust removal output tube (5) is connected to a dust removal U-shaped tube (6) at one end away from the cyclone separation tube (41). The dust removal U-shaped tube (6) comprises two vertical tube sections (61) and a straight tube section (62) which is horizontally connected and arranged between the bottom ends of the two vertical tube sections (61). A rubber friction ring (63) is slidably arranged on the outside of the straight tube section (62). A driving member for driving the rubber friction ring (63) to slide on the straight tube section (62) is arranged on the dust removal U-shaped tube (6). The dust removal U-shaped tube (6) is away from the dust removal output tube. One end of the dust removal U-shaped tube (5) is connected to a demisting input pipe (7), and the demisting input pipe (7) is connected to the demisting tower (8) at one end away from the dust removal U-shaped tube (6). The activated carbon adsorption tank (10) is divided into two semi-cylindrical adsorption areas (108) and a regeneration area (109). The demisting output pipe (9) and the gas output pipe (13) are both connected to the adsorption area (108). An activated carbon regeneration component (20) is arranged outside the regeneration area (109). The activated carbon regeneration component (20) includes a steam generator (201), a steam input pipe (202), a condensation recovery pipe (203), a condensation recovery device (204) and a heating jacket (205). The heating jacket (205) 05) is semi-circular and connected to the outside of the activated carbon adsorption tank (10), the heating jacket (205) is arranged corresponding to the regeneration zone (109), the steam input pipe (202) and the condensation recovery pipe (203) are respectively connected to the two ends of the activated carbon adsorption tank (10) and arranged corresponding to the regeneration zone (109), the steam generator (201) is arranged in communication with the end of the steam input pipe (202) away from the activated carbon adsorption tank (10), the condensation recovery device (204) is arranged in communication with the end of the condensation recovery pipe (203) away from the activated carbon adsorption tank (10), and a rotating frame (106) is arranged in the accommodating shell (104) to rotate along its radial direction.A plurality of stirring rods (107) are arranged on the rotating frame (106) along the radial direction of the containing shell (104), and a driving member for driving the rotating frame (106) to rotate about the central axis of the containing shell (104) is arranged on the activated carbon adsorption tank (10).

2. A sludge incineration flue gas purification and deodorization device according to claim 1, characterized in that: The cyclone separation pipe (41) comprises a first straight pipe section and a first conical pipe section which are connected from top to bottom, and the temporary storage separation pipe (43) comprises a second straight pipe section (62) and a second conical pipe section which are connected from top to bottom. The maximum diameter of the temporary storage separation pipe (43) is smaller than the maximum diameter of the cyclone separation pipe (41). The bottom end of the temporary storage separation pipe (43) is connected to a dust storage box (44), and a dust storage electric valve (45) is provided between the dust storage box (44) and the second conical pipe section.

3. A sludge incineration flue gas purification and deodorization device according to claim 2, characterized in that: The bottom end of the first conical pipe section is connected to a dust storage connecting pipe (42), a connecting cone cover (46) is coaxially arranged in the dust storage connecting pipe (42), a support rod (47) is connected between the connecting cone cover (46) and the inner wall of the dust storage connecting pipe (42), a plurality of air flow holes (461) are provided on the connecting cone cover (46), and one end of the dust removal output pipe (5) vertically extends into the top end of the cyclone separation pipe (41).

4. The sludge incineration flue gas purification and deodorization device according to claim 1, characterized in that: A waste heat utilization boiler (2) is provided between the flue gas inlet pipe (1) and the cyclone separator (4), and a dust removal input pipe (3) is provided in communication between the waste heat utilization boiler (2) and the cyclone separation pipe (41).

5. The sludge incineration flue gas purification and deodorization device according to claim 1, characterized in that: A plurality of groups of defogger plates (81) are arranged in parallel in the defogger tower (8); an alkali liquid inlet pipe (83) is arranged on the defogger tower (8); the alkali liquid inlet pipe (83) is located below the defogger plate (81); one end of the alkali liquid inlet pipe (83) away from the defogger tower (8) is connected to an alkali liquid storage tank (82); an alkali liquid inlet pump (84) is arranged on the alkali liquid inlet pipe (83); a liquid outlet pipe (86) is arranged on the bottom end of the defogger tower (8); and a liquid outlet valve (87) is arranged on the liquid outlet pipe (86).

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