A waste incineration flue gas deacidification treatment device
By introducing spraying, water collection, and drainage mechanisms into the waste incineration flue gas deacidification device, an alkaline water curtain and atomization are formed, solving the problem of incomplete treatment of solid pollutants in flue gas, improving deacidification efficiency and alkaline utilization, and achieving comprehensive deacidification effect.
Patent Information
- Application Number
- CN202510717437.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2045-05-30
AI Technical Summary
Existing waste incineration flue gas desulfurization devices suffer from problems such as inconvenient pretreatment of solid pollutants in flue gas, low desulfurization efficiency, insufficient contact between flue gas and alkaline solution, and incomplete treatment of sediment accumulation.
A waste incineration flue gas deacidification treatment device was designed, which includes a liquid spraying mechanism, a water collection mechanism, an atomization mechanism, and a liquid discharge mechanism. The liquid spraying mechanism forms an alkaline water curtain, the atomization mechanism further disperses the droplets, the water collection mechanism gathers the solution, and the liquid discharge mechanism recycles the alkaline solution to ensure that the flue gas and the alkaline solution are fully in contact and react.
It improves the efficiency of flue gas deacidification treatment, enhances the ability to remove solid pollutants, reduces alkali consumption, and achieves comprehensive deacidification treatment of settled flue gas.
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Figure CN120695632B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of flue gas deacidification, and particularly relates to a waste incineration flue gas deacidification treatment device. BACKGROUND
[0002] Waste incineration flue gas is one of the main pollutants generated in the waste incineration process, which has complex composition and significant environmental and health hazards. The main pollutants include particulate matters such as fly ash and dust, and most of the acid gases. In order to efficiently remove the acid gases in the flue gas, the alkali liquor is usually sprayed to contact with the flue gas in counter flow, and the acid pollutants are neutralized by using the gas-liquid mass transfer reaction.
[0003] However, the existing device is not convenient for pretreating the solid pollutants in the flue gas, which reduces the deacidification efficiency. When the flue gas is sprayed for deacidification, the flue gas is not fully contacted with the alkali liquor. In addition, it is not convenient to deacidify the part of the flue gas which is accumulated on the bottom, and the treatment is not sufficient. SUMMARY
[0004] In order to overcome the shortcomings in the background art, the present application provides a waste incineration flue gas deacidification treatment device which has higher deacidification efficiency, the alkali liquor is more fully contacted with the flue gas, and the deacidification is more thorough.
[0005] The technical scheme of the present application is as follows: a waste incineration flue gas deacidification treatment device, comprising four supporting legs, a bottom plate fixedly connected between the four supporting legs, an outer shell fixedly connected to the bottom plate, a through hole formed in the upper portion of the outer shell, a central pipe fixedly connected to the upper portion of the outer shell, the central pipe penetrating through the outer shell, an alkali liquor pool arranged on one side of the outer shell, a water pump arranged on the alkali liquor pool, a connecting long pipe connected between the water pump outlet and the central pipe, a liquid guide elbow pipe connected between the alkali liquor pool and the bottom plate, a liquid spraying mechanism arranged in the outer shell, the liquid spraying mechanism being used for spraying the alkali liquor in the outer shell, and a water collecting mechanism arranged on the bottom plate, the water collecting mechanism being used for re-collecting the dripping solution.
[0006] Further, the liquid spraying mechanism comprises a driving motor fixedly connected to the outer shell, a gear long rod fixedly connected to the output shaft of the driving motor, a toothed disc rotatably connected to the lower portion of the central pipe, the toothed disc being engaged with the gear long rod, a spherical pipe fixedly connected to the lower end of the central pipe, four supporting straight pipes fixedly connected to the side surface of the spherical pipe, a swinging frame rotatably connected to each of the supporting straight pipes, a conical nozzle fixedly connected to the lower portion of each of the swinging frames, a corrugated hose connected between the conical nozzle and the supporting straight pipe, a guide pull rod slidingly connected to each of the supporting straight pipes, the swinging frame penetrating through the guide pull rod, an extrusion elbow rod fixedly connected to the lower portion of the toothed disc, and a central nozzle fixedly connected to the lower portion of the spherical pipe.
[0007] Further, the water collecting mechanism comprises an air inlet elbow, which is fixedly connected to the bottom plate, penetrates the bottom plate, and has four side pipes fixedly connected to the upper portion of the air inlet elbow, and a ring pipe fixedly connected between the upper portions of the four side pipes, the air inlet elbow, the side pipes and the ring pipe being in communication with each other, four strip-shaped holes being formed in the upper portion of the ring pipe, a slope disc being fixedly connected to the inner wall of the shell, a leakage hole being formed in the middle portion of the slope disc, and an overflow ring being fixedly connected to the middle portion of the slope disc, the inner diameter of the overflow ring being smaller than the diameter of the ring pipe.
[0008] Further, the water collecting mechanism comprises an air inlet elbow, which is fixedly connected to the bottom plate, penetrates the bottom plate, and has four side pipes fixedly connected to the upper portion of the air inlet elbow, and a ring pipe fixedly connected between the upper portions of the four side pipes, the air inlet elbow, the side pipes and the ring pipe being in communication with each other, four strip-shaped holes being formed in the upper portion of the ring pipe, a slope disc being fixedly connected to the inner wall of the shell, a leakage hole being formed in the middle portion of the slope disc, and an overflow ring being fixedly connected to the middle portion of the slope disc, the inner diameter of the overflow ring being smaller than the diameter of the ring pipe.
[0009] Further, the water collecting mechanism comprises an air inlet elbow, which is fixedly connected to the bottom plate, penetrates the bottom plate, and has four side pipes fixedly connected to the upper portion of the air inlet elbow, and a ring pipe fixedly connected between the upper portions of the four side pipes, the air inlet elbow, the side pipes and the ring pipe being in communication with each other, four strip-shaped holes being formed in the upper portion of the ring pipe, a slope disc being fixedly connected to the inner wall of the shell, a leakage hole being formed in the middle portion of the slope disc, and an overflow ring being fixedly connected to the middle portion of the slope disc, the inner diameter of the overflow ring being smaller than the diameter of the ring pipe.
[0010] The beneficial effects are: 1. The alkali liquid water curtain is formed by the overflow mode, so that the solid pollutants in the flue gas are not easy to continue to flow upward with the flue gas under the action of the water curtain, and the efficiency of flue gas deacidification treatment is improved.
[0011] 2、When the driving motor starts, the gear long rod and the gear plate are driven to rotate, the gear plate rotates to drive the four transmission gears to rotate, the transmission gears drive the driving gear to rotate, the driving gear drives the driven gear to rotate at high speed, the driven gear drives the cam to rotate at high speed, the protrusions on the cam knock the upper part of the straight rod during rotation, thereby driving the straight rod to vibrate at high frequency, the vibration of the straight rod drives the grid frame to vibrate at high frequency, the high-frequency vibration of the grid frame further disperses the liquid droplets sprayed from above, so that a water mist is formed in the area near the grid frame, so that the flue gas flowing from bottom to top can fully react with the lye, and the consumption of lye is also reduced.
[0012] 3、When the liquid guide elbow is blocked by the hole plug, a certain amount of solution will accumulate on the bottom plate, and part of the solution contains part of the lye participating in the reaction, so that the solution still has a certain deacidification capacity, so that a part of the solution accumulated can be used for deacidification treatment of a part of the flue gas accumulated on the bottom, so that the flue gas deacidification is more comprehensive, and the intermittent reciprocating movement of the stirring plate will stir the accumulated solution, so that the solution and the flue gas react more fully, and the solution will overflow into the lye pool for circulation when the stirring plate moves upward and drives the hole plug to move upward and no longer blocks the liquid guide elbow. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present application.
[0014] Figure 2 It is a schematic diagram of the sectional view of the shell of the present application.
[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the liquid spraying mechanism and the water collecting mechanism of the present application.
[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the present application Figure 3 It is an enlarged schematic diagram of the three-dimensional structure of the present application.
[0017] Figure 5 It is a schematic diagram of the separation of the inlet elbow, the side pipe and the ring pipe of the present application.
[0018] Figure 6 It is a schematic diagram of the separation of the center pipe, the spherical pipe and the supporting straight pipe of the present application.
[0019] Figure 7 It is a schematic diagram of the three-dimensional structure of the atomization mechanism of the present application.
[0020] Figure 8 It is a schematic diagram of the three-dimensional structure of the present application Figure 7 It is an enlarged schematic diagram of the three-dimensional structure of the present application.
[0021] Figure 9 It is a schematic diagram of the three-dimensional structure of the liquid discharge mechanism of the present application.
[0022] Figure 10 For the present invention Figure 9 A magnified three-dimensional structural diagram at point C.
[0023] Component names and numbers in the diagram: 1_Outrigger, 2_Base plate, 3_Outer shell, 4_Central tube, 51_Alkali tank, 52_Water pump, 53_Connecting long pipe, 54_Liquid guide bend, 61_Drive motor, 62_Gear rod, 63_Gear disc, 64_Spherical tube, 65_Support straight pipe, 66_Swing frame, 67_Conical nozzle, 68_Corrugated hose, 69_Guide rod, 610_Extrusion bend, 611_Central nozzle 71_Intake bend, 72_Side pipe, 73_Ring pipe, 74_Sloping plate, 75_Overflow ring, 81_Support bracket, 82_Drive gear, 83_Driving gear, 84_Side bracket, 85_Straight rod, 86_Support spring, 87_Grid bracket, 88_Driven gear, 89_Cam, 91_Support block, 92_Pull-down rod, 93_Agitator plate, 94_Plug, 95_Round rod, 96_Guide bracket, 97_Reset spring. Detailed Implementation
[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.
[0025] Example 1
[0026] A waste incineration flue gas desulfurization treatment device, such as Figures 1-10 As shown, the device includes four support legs 1, with a base plate 2 fixedly connected between the four support legs 1. A housing 3 is fixedly connected to the base plate 2, and a through hole is opened on the upper part of the housing 3. A central tube 4 is fixedly connected to the upper part of the housing 3, and the central tube 4 passes through the housing 3. An alkaline solution tank 51 is provided on one side of the housing 3, and a water pump 52 is provided on the alkaline solution tank 51. A connecting long pipe 53 is connected between the outlet of the water pump 52 and the central tube 4. A liquid guiding bend 54 is connected between the alkaline solution tank 51 and the base plate 2. A spraying mechanism is provided inside the housing 3 to spray alkaline solution into the housing 3. A water gathering mechanism is provided on the base plate 2 to collect the dripping solution again.
[0027] The liquid spraying mechanism comprises a driving motor 61 fixedly connected to the shell 3, a gear long rod 62 fixedly connected to an output shaft of the driving motor 61, a toothed disc 63 rotatably connected to a lower part of the central pipe 4, the toothed disc 63 being engaged with the gear long rod 62, a spherical pipe 64 fixedly connected to a lower end of the central pipe 4, four support straight pipes 65 fixedly connected to a side surface of the spherical pipe 64, an oscillating frame 66 rotatably connected to each of the support straight pipes 65, a conical nozzle 67 fixedly connected to a lower part of each of the oscillating frames 66, a corrugated hose 68 connected between the conical nozzle 67 and the support straight pipe 65, a guide pull rod 69 slidably connected to each of the support straight pipes 65, the oscillating frame 66 penetrating through the guide pull rod 69, an extrusion bent rod 610 fixedly connected to a lower part of the toothed disc 63, and a central nozzle 611 fixedly connected to a lower part of the spherical pipe 64.
[0028] The water collecting mechanism comprises an air inlet elbow 71 fixedly connected to the bottom plate 2, the air inlet elbow 71 penetrating through the bottom plate 2, four side pipes 72 fixedly connected to an upper part of the air inlet elbow 71, an annular pipe 73 fixedly connected between upper parts of the four side pipes 72, the air inlet elbow 71, the side pipes 72 and the annular pipe 73 being in communication with each other, four strip-shaped holes being formed in an upper part of the annular pipe 73, an inclined disc 74 fixedly connected to an inner wall of the shell 3, a leakage hole being formed in a middle part of the inclined disc 74, an overflow ring 75 fixedly connected to the middle part of the inclined disc 74, and an inner diameter of the overflow ring 75 being smaller than a diameter of the annular pipe 73.
[0029] In the actual deacidification work, first add a sufficient amount of alkaline solution into the alkali pool 51, then pass the flue gas into the inlet elbow 71, and then start the drive motor 61 and the water pump 52. The water pump 52 will pump the alkaline solution in the alkali pool 51 into the central pipe 4, and then the alkali solution further passes through the four supporting straight pipes 65, and finally passes through the central spray head 611 and the four conical spray heads 67. The alkali solution sprayed from each spray head will cover the entire inside of the shell 3. The drive motor 61 will drive the gear long rod 62 to rotate, and then drive the gear disc 63 to rotate. The rotation of the gear disc 63 will drive the extrusion elbow 610 to rotate, which will first extrude one side of each guide pull rod 69 and then move the guide pull rod 69 horizontally towards the central pipe 4 by a certain distance. The horizontal movement of the guide pull rod 69 will drive the upper part of the swing frame 66 to swing, and then the swing frame 66 will drive the lower conical spray head 67 to swing towards the inner wall of the shell 3 by a certain angle. Then the continuous rotation of the extrusion elbow 610 will drive the four conical spray heads 67 to swing respectively. The swinging of the conical spray head 67 will spray to the inner wall of the shell 3. Since the incineration flue gas carries a part of solid pollutants, which adhere to the inner wall of the shell 3 to form dirt, the spraying of the inner wall can conveniently clean this part of dirt. Then the flue gas enters the side pipe 72 after being divided from the inlet elbow 71, and then escapes upwards from the ring pipe 73 into the shell 3. The alkali solution sprayed from the upper part of the shell 3 will fall down and be collected by the inclined disc 74. Since the upper surface of the overflow ring 75 is higher than the height of the leakage hole of the inclined disc 74, a part of the alkali solution will accumulate between the inclined disc 74 and the overflow ring 75. When the water surface of the alkali solution is higher than the upper surface of the overflow ring 75, the alkali solution will overflow the overflow ring 75 and leak downward from the leakage hole. The overflowed alkali solution will form a ring-shaped water curtain. Since the inner diameter of the overflow ring 75 is smaller than the diameter of the ring pipe 73, the flue gas escaping from the ring pipe 73 must pass through the water curtain to continue to flow upwards. In this way, the solid pollutants in the flue gas are more easily washed away by the water flow after the flue gas contacts with the alkali solution, and will not continue to flow upwards with the flue gas, thereby improving the efficiency of flue gas deacidification. The flue gas continues to flow upwards and further reacts with the sprayed alkali solution, and finally escapes from the through hole at the upper part of the shell 3. The reacted solution and the unreacted alkali solution will flow back into the alkali pool 51 through the liquid guide elbow 54 for circulation.
[0030] Example 2
[0031] On the basis of Example 1, as Figures 7-8As shown, the atomization mechanism is arranged on the support straight pipes 65, and is used for further atomizing the liquid droplets sprayed down. The atomization mechanism comprises four support frames 81, each of which is fixedly connected between two adjacent support straight pipes 65. Each support frame 81 is rotatably connected with a transmission gear 82. Each transmission gear 82 is fixedly connected with a driving gear 83. Each support frame 81 is fixedly connected with a side frame 84 on one side. Each side frame 84 is slidably connected with a straight rod 85 at one end. The straight rod 85 is connected with the side frame 84 through a support spring 86. The lower portions of the four straight rods 85 are connected with a grid frame 87. Each side frame 84 is rotatably connected with a driven gear 88. Each driven gear 88 is fixedly connected with a cam 89 on the side close to the straight rod 85. The cam 89 is provided with a plurality of protrusions. The cam 89 is in contact with the upper portion of the straight rod 85.
[0032] When the driving motor 61 is started, the gear long rod 62 and the gear disc 63 are driven to rotate. The rotation of the gear disc 63 drives the four transmission gears 82 to rotate together. The transmission gears 82 drive the driving gears 83 to rotate. The driving gears 83 drive the driven gears 88 to rotate at a high speed. The driven gears 88 drive the cam 89 to rotate at a high speed. The plurality of protrusions on the cam 89 knock the upper portion of the straight rod 85 when rotating, thereby driving the straight rod 85 to vibrate up and down at a high frequency. The vibration of the straight rod 85 drives the grid frame 87 to vibrate at a high frequency. The high-frequency vibration of the grid frame 87 further disperses the liquid droplets sprayed down above, so that a water mist is formed in the area near the grid frame 87. In this way, the flue gas flowing from bottom to top can fully react with the lye, and the consumption of the lye is reduced.
[0033] Example 3
[0034] On the basis of Example 2, as Figures 9-10As shown, the device further comprises a liquid discharge mechanism arranged inside the shell 3, which is used to intermittently discharge the solution at the bottom of the shell 3 into the alkali pool 51. The liquid discharge mechanism comprises four supporting blocks 91, each of which is fixedly connected to the inner wall of the shell 3. Each supporting block 91 is slidably connected with a lower pull rod 92. The lower pull rods 92 are fixedly connected at the lower part thereof with an agitating plate 93. The agitating plate 93 is fixedly connected with a hole plug 94 at one side thereof. The hole plug 94 is located inside the liquid guide elbow 54 at the lower part thereof. Each conical nozzle 67 is fixedly connected with a round rod 95 at both sides thereof. Each supporting block 91 is slidably connected with a guide frame 96. The guide frame 96 is provided with a straight slot. The round rod 95 is located in the straight slot of the guide frame 96. The upper part of the lower pull rod 92 is in contact with one side of the guide frame 96. The guide frame 96 and the supporting block 91 are connected with a return spring 97.
[0035] When the squeeze elbow 610 rotates and drives the four conical nozzles 67 to swing towards the inner wall of the shell 3 in turn, the swinging of one conical nozzle 67 drives one guide frame 96 to move upward by a distance through the round rods 95 at both sides thereof. The return spring 97 is stretched. The upward movement of the guide frame 96 will squeeze the upper part of the lower pull rod 92 and drive the lower pull rod 92 to move upward by a distance. The upward movement of the lower pull rod 92 will drive the agitating plate 93 to move upward. The upward movement of the agitating plate 93 will drive the hole plug 94 to move upward, so that the hole plug 94 no longer blocks the liquid guide elbow 54. When the liquid guide elbow 54 is blocked by the hole plug 94, a certain amount of solution will accumulate on the bottom plate 2. The solution contains part of the alkali solution participating in the reaction, so that the solution still has a certain deacidification capacity. In this way, a part of the accumulated solution can be used to deacidify a part of the smoke gas accumulated on the bottom, so that the smoke gas deacidification is more comprehensive. The intermittent reciprocating movement of the agitating plate 93 will agitate the accumulated solution, so that the solution and the smoke gas react more fully. The solution will overflow into the alkali pool 51 for circulation when the agitating plate 93 moves upward and drives the hole plug 94 to move upward and no longer blocks the liquid guide elbow 54.
[0036] Although the present disclosure has been described only with respect to a limited number of embodiments, those skilled in the art who have the benefit of this disclosure will appreciate that a variety of other embodiments can be made without departing from the scope of the application. Therefore, the scope of the present application should be limited only by the appended claims.
Claims
1. A waste incineration flue gas desulfurization treatment device, characterized in that: The utility model provides a four -legged (1) including, four four between fixed connection of leg (1) bottom plate (2) is connected with, bottom plate (2) on fixed connection has shell (3), the upper portion of shell (3) is opened and has the through -hole, shell (3) upper portion fixed connection has center tube (4), center tube (4) passes through shell (3), shell (3) one side is provided with lye pool (51), lye pool (51) is provided with water pump (52), and the water outlet of water pump (52) is connected with center tube (4) between connection long pipe (53), and lye pool (51) is connected with the bottom plate (2) between guide liquid elbow (54), and shell (3) inside is provided with liquid spraying mechanism, and the liquid spraying mechanism is used for the alkali liquid shower in shell (3), and the bottom plate (2) is provided with water collecting mechanism, and the water collecting mechanism is used for the solution again gathering of dropping, The utility model discloses a four -legged (1) including, four four between fixed connection of leg (1) bottom plate (2) is connected with, bottom plate (2) on fixed connection has shell (3), the upper portion of shell (3) is opened and has the through -hole, shell (3) upper portion fixed connection has center tube (4), center tube (4) passes through shell (3), shell (3) one side is provided with lye pool (51), lye pool (51) is provided with water pump (52), and the water outlet of water pump (52) is connected with center tube (4) between connection long pipe (53), and lye pool (51) is connected with the bottom plate (2) between guide liquid elbow (54), and shell (3) inside is provided with liquid spraying mechanism, and the liquid spraying mechanism is used for the alkali liquid shower in shell (3), and the bottom plate (2) is provided with water collecting mechanism, and the water collecting mechanism is used for the solution again gathering of dropping, The utility model discloses a four -legged (1) including, four four between fixed connection of leg (1) bottom plate (2) is connected with, bottom plate (2) on fixed connection has shell (3), the upper portion of shell (3) is opened and has the through -hole, shell (3) upper portion fixed connection has center tube (4), center tube (4) passes through shell (3), shell (3) one side is provided with lye pool (51), lye pool (51) is provided with water pump (52), and the water outlet of water pump (52) is connected with center tube (4) between connection long pipe (53), and lye pool (51) is connected with the bottom plate (2) between guide liquid elbow (54), and shell (3) inside is provided with liquid spraying mechanism, and the liquid spraying mechanism is used for the alkali liquid shower in shell (3), and the bottom plate (2) is provided with water collecting mechanism, and the water collecting mechanism is used for the solution again gathering of dropping, 2. The waste incineration flue gas deacidification treatment device according to claim 1, characterized in that: The inner diameter of the overflow ring (75) is less than the diameter of the ring pipe (73). The inner diameter of the overflow ring (75) is less than the diameter of the ring pipe (73).
3. The device for removing acid from waste incineration flue gas according to claim 1, characterized in that: Further include atomization mechanism, the atomization mechanism is arranged on the support straight pipe (65), the atomization mechanism is used for further atomization of the liquid drop that sprays down, the atomization mechanism includes four support frames (81), each support frame (81) is fixedly connected between two adjacent support straight pipes (65), each support frame (81) is rotatably connected with transmission gear (82), each transmission gear (82) is fixedly connected with driving gear (83), each support frame (81) one side is fixedly connected with side frame (84), each side frame (84) one end is slidably connected with straight bar (85), the straight bar (85) is connected with support spring (86) between the side frame (84), four straight bars (85) lower part is connected with grid frame (87), each side frame (84) is rotatably connected with driven gear (88), each driven gear (88) is fixedly connected with cam (89) on the side close to the straight bar (85), the cam (89) and the upper portion of the straight bar (85) contact.
4. The device for removing acid from waste incineration flue gas according to claim 3, characterized in that: The cam (89) is provided with a plurality of protrusions.
5. The device for removing acid from waste incineration flue gas according to claim 1, characterized in that: Further include a drainage mechanism, the drainage mechanism is arranged in the shell (3) inside, the drainage mechanism is used for intermittently the solution of the shell (3) bottom is drained into lye pool (51), the drainage mechanism includes four support blocks (91), four support blocks (91) are fixedly connected on the inner wall of the shell (3), each support block (91) is slidably connected with lower pull long rod (92), four lower pull long rods (92) lower part is fixedly connected with the agitating plate (93), the agitating plate (93) one side is fixedly connected with the hole plug (94), the hole plug (94) lower part is located in the liquid guide elbow (54) inside, each conical nozzle (67) both sides are fixedly connected with round bar (95), each support block (91) is slidably connected with guide frame (96), the guide frame (96) is opened in straight slot, the round bar (95) is located in the straight slot of the guide frame (96), the lower pull long rod (92) upper portion and the guide frame (96) one side contact, the guide frame (96) and the support block (91) are connected with reset spring (97).
Citation Information
Patent Citations
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