CN116688657B - Purification method of deacidification tower flue gas purification system - Google Patents
Purification method of deacidification tower flue gas purification system Download PDFInfo
- Publication number
- CN116688657B CN116688657B CN202310817558.8A CN202310817558A CN116688657B CN 116688657 B CN116688657 B CN 116688657B CN 202310817558 A CN202310817558 A CN 202310817558A CN 116688657 B CN116688657 B CN 116688657B
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- flue gas
- flow rate
- inner frame
- gas
- filter disc
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 184
- 239000003546 flue gas Substances 0.000 title claims abstract description 184
- 238000000746 purification Methods 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000000779 smoke Substances 0.000 claims abstract description 126
- 239000007789 gas Substances 0.000 claims abstract description 106
- 238000001514 detection method Methods 0.000 claims abstract description 52
- 239000000428 dust Substances 0.000 claims abstract description 33
- 238000005096 rolling process Methods 0.000 claims description 14
- 238000001914 filtration Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000000203 mixture Substances 0.000 description 23
- 238000004891 communication Methods 0.000 description 21
- 238000005507 spraying Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 230000008859 change Effects 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000000889 atomisation Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/442—Auxiliary equipment or operation thereof controlling filtration by measuring the concentration of particles
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The application relates to a purification method of a flue gas purification system of a deacidification tower, which comprises the steps of setting initial values of medium flow rate, filter disc vibration frequency and inner frame rotation speed; setting initial values of the concentration, the flow rate and the granularity of the flue gas; standard values of gas flow rate and smoke content; detecting the detection values of the concentration, the flow rate and the granularity of the flue gas; calculating the difference between the detection value and the previous detection value in the concentration, the flow rate and the granularity of the flue gas; detecting the discharge value of the gas flow rate and the smoke dust content; calculating a deviation value between the gas flow rate discharge value and the previous discharge value; calculating a deviation value of the smoke content exceeding a standard value; and according to the detection values of the concentration, the flow rate and the granularity of the flue gas, and the emission values of the gas flow rate and the smoke dust content, adjusting the initial values of the medium flow rate, the vibration frequency of the filter disc and the rotating speed of the inner frame. The problem of contact between flue gas and spray liquid is just short in the current scheme, sprays unable complete coverage to the flue gas, leads to its purification efficiency not high is solved.
Description
Technical Field
The application relates to the field of purification systems, in particular to a purification method of a deacidification tower flue gas purification system.
Background
In industrial production, the waste gas cannot be directly discharged, and the flue gas needs to be deacidified and purified by a deacidification tower. The traditional deacidification tower adopts a spraying mode to purify the flue gas, and a spraying pipeline is often arranged in the tower, so that the purification of smoke dust is finished by spraying alkali liquor or deacidification agent. Sometimes, a sieve plate is installed to improve the purifying effect, so that the contact surface between the spraying liquid and the flue gas is increased. But the purification idea of the traditional scheme is still realized by a spraying mode, and then the purification idea is changed on the basis of the traditional scheme, so that the contact area is increased, and the purification effect is improved.
Such a purification mode naturally falls after spraying the liquid, and the purification is completed by contact with the flue gas during the falling. The flue gas flows upwards, the spraying liquid falls down, the contact between the two is shorter, and the spraying can not completely cover the flue gas. This results in an inefficient purification thereof. How to solve this problem becomes important.
Disclosure of Invention
Aiming at the defects of the prior art, the application aims to provide a purification method of a flue gas purification system of a deacidification tower, so as to solve the problems that in the prior art, the contact between flue gas and spray liquid is short, the spray cannot completely cover the flue gas, and the purification efficiency is low.
In order to achieve the above purpose, the technical scheme of the application is as follows:
a purifying method of a flue gas purifying system of a deacidification tower;
when the deacidification tower flue gas purification system is used for purification, the method comprises the following steps of:
the position of the flue gas flowing into the flue gas purification system of the deacidification tower is provided with a first sensor and a detection position, and the first sensor is used for detecting the concentration, the flow speed and the granularity of the flue gas; the position of the gas exhausted by the flue gas purification system of the deacidification tower is provided with a second sensor for detecting the smoke dust content in the gas and the flow rate of the gas; a third sensor is arranged at the position of the deacidification tower flue gas purification system connected with the medium source and is used for detecting the flow velocity of the inflow medium;
the first controller is connected to the vibration device and is used for detecting and adjusting the power of the vibration device to finish the detection and adjustment of the vibration frequency of the filter disc; the driving end of the power device is provided with an encoder, the power device is connected with a second controller, and the encoder detects the rotation speed of the power device, so that the rotation speed of the inner frame is known; the second controller is used for adjusting the power of the power device so as to adjust the rotating speed of the inner frame;
the deacidification tower flue gas purification system includes: an outer frame and an inner frame; the inner frame is arranged in the outer frame in the up-down direction; the filter disc is arranged in the horizontal direction; the filter discs are distributed and overlapped in the up-down direction and are arranged on the inner frame to filter the flue gas; the filter disc is communicated with a medium source through the communicating inner frame; the power device drives the inner frame to rotate along the outer frame; the vibration end of the vibration device is in rolling contact with the inner frame to finish the vibration of driving the filter disc to reciprocate up and down in the inner frame; the power device is arranged on the outer frame and drives the inner frame and the filter disc to rotationally contact smoke in the outer frame; the flue gas flows between the filter discs and is mixed with the medium to finish filtration;
setting: setting initial values of medium flow rate, filter disc vibration frequency and inner frame rotation speed; setting initial values of the concentration, the flow rate and the granularity of the flue gas; standard values of gas flow rate and smoke content;
the deacidification tower flue gas purification system starts to work: the power device drives the inner frame to rotate, and the encoder detects the rotation speed of the power device so as to know the rotation speed of the inner frame; the vibration device drives the filter disc to vibrate, and the first controller detects the power of the vibration device so as to know the vibration frequency of the filter disc; the medium is introduced into the deacidification tower flue gas purification system, and a third sensor detects the flow velocity of the medium;
the deacidification tower flue gas purification system flows in flue gas, and the first sensor detects the concentration, the flow speed and the granularity of the flue gas; the flue gas enters the outer frame and flows between the filter discs, the flue gas is filtered and purified by the medium, and the flue gas is filtered and purified to form gas to be discharged; the second sensor detects the smoke dust content in the gas and the flow rate of the gas;
the measuring and calculating steps are as follows: detecting the detection values of the concentration, the flow rate and the granularity of the flue gas; calculating the difference between the detection value and the previous detection value in the concentration, the flow rate and the granularity of the flue gas; detecting the discharge value of the gas flow rate and the smoke dust content; calculating a deviation value between the gas flow rate discharge value and the previous discharge value; calculating a deviation value of the smoke content exceeding a standard value;
and (3) adjusting: and according to the detection values of the concentration, the flow rate and the granularity of the flue gas, and the emission values of the gas flow rate and the smoke dust content, adjusting the initial values of the medium flow rate, the vibration frequency of the filter disc and the rotating speed of the inner frame.
The further technical scheme is as follows: in the adjusting step: when the percentage of the difference value of the concentration, the flow rate and the granularity of the flue gas and the detection value of the concentration, the flow rate and the granularity of the flue gas is more than 3%, the initial values of the medium flow rate, the vibration frequency of the filter disc and the rotation speed of the inner frame are adjusted;
when the percentage of the deviation value of the gas flow rate and the discharge value of the gas flow rate is more than 7%, the initial values of the rotation speed of the inner frame and the vibration frequency of the filter disc are adjusted; when the deviation value of the gas smoke content appears, the initial values of the medium flow speed and the vibration frequency of the filter disc are adjusted.
The further technical scheme is as follows: adjusting the vibration frequency of the filter disc according to the detection value of the flow velocity of the flue gas; adjusting the vibration frequency of the filter disc and the flow velocity of the medium according to the detection value of the smoke concentration; and adjusting the vibration frequency of the filter disc, the medium flow speed and the inner frame rotation speed according to the detection value of the flue gas granularity.
The further technical scheme is as follows: according to the discharge value of the gas flow velocity, adjusting the rotation speed of the inner frame and the vibration frequency of the filter disc; and adjusting the medium flow rate and the vibration frequency of the filter disc according to the emission value of the gas smoke content.
Compared with the prior art, the application has the following beneficial technical effects: (1) When the medium is sprayed out of the filter discs, the medium is in discontinuous point atomization spraying, then the medium is repeatedly jumped between the filter discs by vibration, and then a part of the medium is adsorbed on the filter discs, so that a complete purifying space is formed between the filter discs by the medium, and the medium and the flue gas can be fully mixed to form a mixture after the flue gas enters the filter discs, so that the full coverage of the mixed and purified flue gas is realized; through the rotation of the filter discs, the flue gas at different positions can enter between the filter discs, the utilization rate of the middle filter discs for flue gas purification is improved, and meanwhile, the amount of the flue gas entering between the filter discs can be controlled by controlling the rotation speed of the filter discs, so that the flue gas purification effect can be accurately controlled; through the vibration of the filter disc, the flue gas can be fully mixed with the sprayed medium, and the flue gas can be attached to the medium of the filter disc, so that the purifying effect of the flue gas is improved; (2) The movable frame is pulled through the connecting rod, the filter disc is clamped by the fixed frame and the movable frame, the filter disc is placed in the mounting groove, the upper position and the lower position of the filter disc are limited, and the medium in the filter disc is conveyed through the assembly position; (3) The limiting piece is embedded between the ratchets, and the limiting piece limits the locking disc to reversely rotate, so that the sliding rod cannot be displaced, the sliding rod and the rolling piece can continuously press the filter pressing piece, and the filter piece is prevented from loosening; the filter discs are continuously pressed down by the rolling piece, so that superposition among the filter discs is firm, gaps among the filter discs cannot occur due to vibration of the filter discs, and accurate adjustment of vibration frequency of the filter discs is affected; (4) The power device drives the first power wheel to rotate, the first power wheel drives the power belt to move, the power belt drives the second power wheel to rotate, the second power wheel drives the inner frame to rotate, the inner frame drives the filter disc to rotate, and the filter disc can contact smoke at different positions in the outer frame; when the granularity of the smoke is larger, the smoke enters between the filter discs, and the tooth shape of the filter discs is contacted with smoke dust in the smoke by driving the rotation of the filter discs and the vibration of the filter discs, so that the tooth shape breaks the smoke dust, and the granularity of the smoke dust is reduced; (5) The smoke is mixed with the medium between the filter discs, and as the filter discs vibrate, the mixture can jump in the flowing process along the filter discs, and can splash when flowing to the inner rings of the filter discs, so as to prevent the mixture from splashing to pollute the gas or the mixture enters the second communicating pipe; an inner net barrel is arranged in the inner ring of the filter disc; when the mixture flows to the inner ring of the filter disc, the mixture contacts the inner net barrel, the mixture flows downwards along the inner net barrel, and the mixture is discharged through the first communication pipe: (6) The initial value and the standard value can be set through the setting step, so that the deacidification tower flue gas purification system can be operated firstly, and each parameter is adjusted according to real-time data after the operation; calculating a difference value or a deviation value in the calculating step so as to obtain the specific time for adjusting the parameters; the parameter adjustment time of the application is not frequently adjusted, but the difference value or the deviation value is required to meet the specific condition; when the percentage of the difference value of the concentration, the flow rate and the granularity of the flue gas and the detection value of the concentration, the flow rate and the granularity of the flue gas is more than 3%, the initial values of the medium flow rate, the vibration frequency of the filter disc and the rotation speed of the inner frame are required to be adjusted; when the percentage of the deviation value of the gas flow rate and the discharge value of the gas flow rate is more than 7%, the initial values of the rotation speed of the inner frame and the vibration frequency of the filter disc are required to be adjusted; when the gas smoke content has a deviation value, the initial values of the medium flow rate and the filter disc vibration frequency are required to be adjusted; by adjusting each parameter, the discharged gas meets the emission standard.
Drawings
Fig. 1 shows a schematic structural diagram of a flue gas cleaning system of a deacidification tower according to a first embodiment of the present application.
Fig. 2 shows an enlarged structural view at a in fig. 1.
Fig. 3 shows an enlarged structural view at B in fig. 1.
Fig. 4 shows a side view partially schematic illustration of a mount according to a first embodiment of the application.
Fig. 5 shows a schematic structural view of a vibration device according to a first embodiment of the present application.
Fig. 6 shows a top view of a filter according to a first embodiment of the present application.
Fig. 7 shows a front view of the structure of fig. 6 at C.
Fig. 8 is a top view of the filter according to the first embodiment of the present application.
The reference numerals in the drawings: 1. an outer frame; 11. an outer cylinder; 12. a cartridge holder; 13. a first communication pipe; 14. a second communicating pipe; 2. an inner frame; 21. a bottom plate; 211. a mounting position; 22. a fixing frame; 23. a movable frame; 231. a second roller; 24. a connecting rod; 241. a ball section; 242. a locking member; 25. assembling the position; 26. a swing position; 27. a top plate; 28. a mounting groove; 3. a filter sheet; 31. tooth form; 32. a cavity; 33. an opening; 34. a notch; 4. a power device; 41. a first power wheel; 42. a second power wheel; 43. a power belt; 5. a vibration device; 51. a vibration support; 52. a first roller; 53. a vibrator; 6. an inner net barrel; 7. a locking mechanism; 71. a locking disc; 72. a restriction plate; 73. an adjusting plate; 74. a restriction member; 75. a ratchet; 76. a slide bar; 77. an extension block; 78. a rolling member.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the following more detailed description of the device according to the present application is given with reference to the accompanying drawings and the detailed description. The advantages and features of the present application will become more apparent from the following description. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for the purpose of facilitating and clearly aiding in the description of embodiments of the application. For a better understanding of the application with objects, features and advantages, refer to the drawings. It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for illustration purposes only and should not be construed as limiting the application to the extent that any modifications, changes in the proportions, or adjustments of the sizes of structures, proportions, or otherwise, used in the practice of the application, are included in the spirit and scope of the application which is otherwise, without departing from the spirit or essential characteristics thereof.
First embodiment:
fig. 1 shows a schematic structural diagram of a flue gas cleaning system of a deacidification tower according to a first embodiment of the present application. Fig. 2 shows an enlarged structural view at a in fig. 1. Fig. 3 shows an enlarged structural view at B in fig. 1. Fig. 4 shows a side view partially schematic illustration of a mount according to a first embodiment of the application. Fig. 5 shows a schematic structural view of a vibration device according to a first embodiment of the present application. Fig. 6 shows a top view of a filter according to a first embodiment of the present application. Fig. 7 shows a front view of the structure of fig. 6 at C. Fig. 8 is a top view of the filter according to the first embodiment of the present application. The application discloses a flue gas purification system of a deacidification tower, which is shown in combination with figures 1, 2, 3, 4, 5, 6, 7 and 8. The direction of X in the figure is the upper end of the structure diagram of the application, and the direction of Y in the figure is the right end of the structure diagram of the application.
The deacidification tower flue gas purification system comprises an outer frame 1, an inner frame 2 rotatably arranged in the outer frame 1, a filter disc 3 for filtering flue gas, a power device 4 for driving the inner frame 2 to rotate and a vibration device 5 for driving the filter disc 3 to vibrate. The filter 3 is superimposed on the inner frame 2. The inner frame 2 is communicated with a medium source. The filter disc 3 is communicated with the inner frame 2. The power device 4 is arranged on the outer frame 1. The vibrating end of the vibrating device 5 is in rolling contact with the inner frame 2.
The inner frame 2 is provided in the outer frame 1 in the up-down direction. The filter 3 is arranged in the horizontal direction. The filter sheets 3 are vertically overlapped. The driving end of the power device 4 is connected with the inner frame 2 and drives the inner frame 2 and the filter disc 3 to rotate. The vibration device 5 drives the filter 3 to vibrate up and down in the inner frame 2. The filter disc 3 is connected with a medium source through the communication inner frame 2.
The flue gas enters the outer frame 1, and the flue gas is positioned between the outer frame 1 and the filter disc 3, and the power device 4 and the vibration device 5 respectively drive the vibration and the rotation of the filter disc 3. When the filter discs 3 rotate, the smoke in the outer frame 1 is sucked between the filter discs 3, the medium is sprayed between the filter discs 3, the medium is mixed with the smoke, the mixed mixture flows into the inner ring of the filter discs 3, the mixture is discharged from the lower end of the outer frame 1, and the gas is discharged from the upper end of the outer frame 1.
The medium flows into the filter discs 3, and the medium vibrates in the filter discs 3 due to the vibration of the filter discs 3, so that when the medium is sprayed out of the filter discs 3, the medium is sprayed in a discontinuous point-shaped atomization mode, and meanwhile, due to the fact that the filter discs 3 vibrate, the medium is repeatedly jumped between the filter discs 3 due to the vibration, and the medium and the smoke can be fully mixed to form a mixture. The medium is attached to the filter sheets 3 after being sprayed, and when the smoke enters between the filter sheets 3, the smoke is attached to the medium on the filter sheets 3 due to vibration of the filter sheets 3.
When the medium is sprayed out of the filter discs 3, the medium is in discontinuous point atomization spraying, and then is repeatedly jumped between the filter discs 3 by vibration, and a part of the medium is adsorbed on the filter discs 3, so that a complete purifying space is formed between the filter discs 3 by the medium, and after the flue gas enters the filter discs 3, the medium and the flue gas can be fully mixed to form a mixture, so that the full coverage of the mixed and purified flue gas is realized.
Through the rotation of the filter discs 3, the flue gas at different positions can enter between the filter discs 3, the utilization rate of the middle filter discs 3 for flue gas purification is improved, and meanwhile, the amount of the flue gas entering between the filter discs 3 can be controlled by controlling the rotation speed of the filter discs 3, so that the effect of flue gas purification can be accurately controlled. Through the vibration of the filter disc 3, the flue gas can be fully mixed with the sprayed medium, and the flue gas can be attached to the medium of the filter disc 3, so that the purifying effect of the flue gas is improved.
The outer frame 1 includes an outer tube 11, a tube frame 12 provided in the outer tube 11, a first communication tube 13 discharging a mixture, and a second communication tube 14 discharging gas. The first communication pipe 13 and the first communication pipe 13 are communicated with the inner ring of the filter disc 3. The inner frame 2 rotates around the first communication pipe 13 and the second communication pipe 14. The first communication pipe 13 and the second communication pipe 14 are provided on the cartridge 12.
The outer cylinder 11 is provided in the up-down direction. The cylinder frame 12 is provided at the upper and lower ends of the outer cylinder 11. The first communication pipe 13 is provided in the vertical direction in the lower cylinder frame 12. The second communication pipe 14 is provided in the vertical direction in the upper cylinder frame 12.
The inner frame 2 includes a bottom plate 21, a fixed frame 22 provided on the bottom plate 21, a movable frame 23 movably provided on the bottom plate 21, and a connecting rod 24 fixing the movable frame 23. The filter 3 is superimposed between the fixed frame 22 and the movable frame 23. One end of the connecting rod 24 swings at any angle along the mount 22. The other end of the connecting rod 24 pulls the movable frame 23.
The bottom plate 21 is disposed in a horizontal direction. The fixing frame 22 is provided at a middle position of the upper surface of the bottom plate 21 in the up-down direction. The movable frame 23 is movably provided at both left and right sides of the bottom plate 21 in the up-down direction. Mounting locations 211 are provided on both sides of the bottom plate 21. The lower end of the movable frame 23 is rotatably provided with a second roller 231. The second roller 231 rolls along the inside of the installation site 211.
The inner housing 2 also includes an assembly bit 25 for mounting the filter 3. The assembling bits 25 are opened on the fixing frame 22 from top to bottom. The assembly bits 25 are in communication with the media source and the filter 3, respectively. A swing position 26 is arranged on one side of the fixed frame 22 away from the assembly position 25.
The inner frame 2 further comprises a mounting groove 28. The mounting grooves 28 are respectively formed on the fixed frame 22 and the movable frame 23. The mounting groove 28 on the fixing frame 22 is communicated with the mounting position 25. The mounting slots 28 are open side by side from top to bottom. Filter 3 is placed in mounting slot 28 to complete the installation.
One end of the connecting rod 24 is provided with a ball portion 241, and the other end of the connecting rod 24 is screwed with a locking member 242. The connecting rod 24 penetrates the fixed frame 22 and the movable frame 23 in turn in the left-right direction. The ball portion 241 is disposed within the swing position 26. The locking piece 242 is screwed on the connecting rod 24, and the locking piece 242 is screwed, and the locking piece 242 presses the movable frame 23. The adjacent connecting rods 24 are distributed in the front-back direction, and the connecting rods 24 avoid the bulges of the filter disc 3.
The filter 3 is provided with a notch 34 at a position close to the fixed frame 22 and the movable frame 23. The fixed frame 22 and the movable frame 23 respectively abut against the cutouts 34.
The inner frame 2 further comprises a top plate 27. A top plate 27 is horizontally installed at the upper end of the fixing frame 22. The top plate 27 is communicated with the upper end of the inner net barrel 6. The bottom plate 21 is communicated with the lower end of the inner net barrel 6. The lower end of the second communication pipe 14 is connected to the top plate 27, and the second communication pipe 14 rotates along the cartridge 12. The upper end of the first communication pipe 13 is connected with the bottom plate 21, and the first communication pipe 13 rotates along the barrel frame 12. If the mixture needs to be recovered, the first communication pipe 13 is connected through the first rotary joint, so that the recovery of the mixture can be completed. If the gas is required to be recovered, the recovery of the gas can be completed by connecting the second rotary joint to the second communication pipe 14.
The upper end of the top plate 27 is provided with a second swivel joint. The second rotary joint is disposed around the second communicating pipe 14. One end of the second rotary joint is communicated with the assembly bit 25, and the other end of the second rotary joint is connected with a medium source through a pipeline. Media enters the holder 22 through the top plate 27, flows along the holder 22 from top to bottom, and enters the filter 3 from the assembly position 25.
The movable frame 23 is pulled by the connecting rod 24, the fixed frame 22 and the movable frame 23 clamp the filter disc 3, the filter disc 3 is placed in the mounting groove 28, the upper and lower positions of the filter disc 3 are limited, and the medium in the filter disc 3 is conveyed by the mounting position 25.
One side of the filter discs 3, which are mutually overlapped, is provided with tooth shapes 31. The tooth shapes 31 on adjacent filter discs 3 are offset from each other. The tooth profile 31 tapers from the outside to the inside. A cavity 32 is formed in the filter 3. The tooth form 31 is provided with openings 33 for the injection medium. The opening 33 communicates with the cavity 32. The cavity 32 communicates with a source of medium via the connecting rod 24.
One side of the middle position of the filter disc 3 is provided with a bulge, and the other side of the middle position of the filter disc 3 is provided with a groove. So that the protrusions are embedded in the grooves when the filter discs 3 are superimposed on each other, resulting in a certain distance between the filter discs 3.
Tooth form 31 is provided on the upper and lower surfaces of filter 3. The tooth shapes 31 on the adjacent filter discs 3 are offset from each other, but gaps exist between the tooth shapes 31 on the adjacent filter discs 3. The gaps between the tooth profiles 31 taper from outside to inside. When the tooth form 31 vibrates, the amplitude of the outer ring of the filter disc 3 is maximum, the amplitude of the inner ring of the filter disc 3 is minimum, if the gaps among the tooth forms 31 are the same, the gaps among the tooth forms 31 of the inner ring of the filter disc 3 are overlarge due to the different amplitudes of different positions of the filter disc 3, so that the purification of smoke is not facilitated.
The inner frame 2 is also provided with a locking mechanism 7 for pressing down the filter disc 3. The locking mechanism 7 includes a locking disk 71 rotatably provided on the mount 22, a restricting disk 72 restricting the locking disk 71, an adjusting disk 73 rotating the locking disk 71, a restricting piece 74 swingably provided on the restricting disk 72, and a ratchet 75 provided around the mount 22. The two sides of the locking disc 71 extend outwardly. The limiter 74 is inserted between the ratchet teeth 75. The locking disc 71, the limiting disc 72 and the adjusting disc 73 are coaxially arranged.
A slide bar 76 is slidably arranged on the inner frame 2. The filter 3 is provided with an extension block 77 extending upward. One end of the slide bar 76 abuts against the extended transition position of the locking disc 71. The other end of the slide bar 76 is rotatably provided with a rolling member 78. The rolling member 78 rolls along the extension block 77.
After the filter discs 3 are overlapped and arranged on the inner frame 2, the filter discs 3 are tightly pressed from top to bottom through the locking mechanism 7, so that gaps are formed between adjacent filter discs 3 when the filter discs 3 vibrate, and the vibration frequency of the filter discs 3 can be adjusted accurately. The outer circumference of the locking plate 71 is made oval by the transition of the extension of both sides of the locking plate 71.
By rotating the limiting plate 72, the limiting plate 72 drives the locking plate 71 and the adjusting plate 73 to rotate, the extending transition position of the locking plate 71 pushes the sliding rod 76 outwards, the sliding rod 76 moves outwards to drive the rolling piece 78 to roll along the extending block 77, the rolling piece 78 presses the pressing piece 3, and the limiting piece 74 is embedded between the ratchets 75. When the filter disc 3 vibrates, the filter disc 3 forms upward thrust to the rolling element 78 and the sliding rod 76, and the limiting piece 74 is embedded between the ratchet teeth 75 to limit the locking disc 71 to reversely rotate, so that the sliding rod 76 cannot displace, the sliding rod 76 and the rolling element 78 can continuously press the filter disc 3, and loosening of the filter disc 3 is avoided.
The filter pressing sheets 3 are continuously pressed down by the rolling members 78, so that the superposition between the filter sheets 3 is firm, and gaps between the filter sheets 3 are not caused by the vibration of the filter sheets 3, thereby affecting the accurate adjustment of the vibration frequency of the filter sheets 3.
The power device 4 drives the inner frame 2 to rotate through the power belt 43, the driving end of the power device 4 is provided with a first power wheel 41, and the inner frame 2 is provided with a second power wheel 42. The power belt 43 is wound around the first power wheel 41 and the second power wheel 42, respectively.
The power device 4 drives the first power wheel 41 to rotate, the first power wheel 41 drives the power belt 43 to move, the power belt 43 drives the second power wheel 42 to rotate, the second power wheel 42 drives the inner frame 2 to rotate, the inner frame 2 drives the filter disc 3 to rotate, and the filter disc 3 can contact smoke at different positions in the outer frame 1.
When the granularity of the flue gas is larger, the flue gas enters between the filter discs 3, and the tooth shapes 31 of the filter discs 3 are contacted with the flue gas by driving the rotation of the filter discs 3 and the vibration of the filter discs 3, so that the tooth shapes 31 break up the flue gas, and the granularity of the flue gas is reduced.
The vibration device 5 includes a vibration bracket 51, a first roller 52 rotatably provided on the vibration bracket 51, and a vibrator 53 driving the filter 3 to vibrate. The first roller 52 rolls along the inner frame 2. The vibrating end of the vibrator 53 is connected to the vibration bracket 51.
The vibration bracket 51 is attached to the outer frame 1. The first roller 52 is rollably connected to the base plate 21. When the inner frame 2 rotates, the first roller 52 rolls along the inner frame 2, the vibrator 53 drives the first roller 52 to vibrate, and the first roller 52 drives the inner frame 2 and the filter disc 3 to vibrate.
The deacidification tower flue gas purification system also comprises an inner net barrel 6 for blocking medium. The inner net barrel 6 is arranged in the inner ring of the filter disc 3.
The flue gas mixes with the medium between the filter discs 3, and because the filter discs 3 vibrate, the mixture can produce beating in the flowing process along the filter discs 3, and when the mixture flows to the inner rings of the filter discs 3, splashing can be produced, so as to prevent the mixture from splashing to pollute the gas, or the mixture enters the second communicating pipe 14. An inner net barrel 6 is arranged in the inner ring of the filter disc 3. When the mixture flows to the inner ring of the filter disc 3, the mixture contacts the inner net barrel 6, the mixture flows downwards along the inner net barrel 6, and the mixture is discharged through the first communication pipe 13.
Second embodiment:
the purification method of the deacidification tower flue gas purification system comprises the following purification methods when the deacidification tower flue gas purification system is used for purification:
the position of the flue gas flowing into the flue gas purification system of the deacidification tower is provided with a first sensor and a detection position, and the first sensor is used for detecting the concentration, the flow speed and the granularity of the flue gas; the position of the gas exhausted by the flue gas purification system of the deacidification tower is provided with a second sensor for detecting the smoke dust content in the gas and the flow rate of the gas; a third sensor is arranged at the position of the deacidification tower flue gas purification system connected with the medium source and is used for detecting the flow velocity of the inflow medium;
the vibration device 5 is connected with a first controller, and the first controller is used for detecting and adjusting the power of the vibration device 5 to finish the detection and adjustment of the vibration frequency of the filter disc 3; the driving end of the power device 4 is provided with an encoder, the power device 4 is connected with a second controller, and the encoder detects the rotation speed of the power device 4 so as to know the rotation speed of the inner frame 2; the second controller is used for adjusting the power of the power device 4 so as to adjust the rotation speed of the inner frame 2;
the deacidification tower flue gas purification system includes: an outer frame 1 and an inner frame 2; the inner frame 2 is arranged in the outer frame 1 in the up-down direction; the filter disc 3 is arranged in the horizontal direction; the filter discs 3 are distributed and overlapped in the up-down direction and are arranged on the inner frame 2 to filter the flue gas; the filter disc 3 is communicated with a medium source through the communicating inner frame 2; the power device 4 drives the inner frame 2 to rotate along the outer frame 1; the vibration end of the vibration device 5 is in rolling contact with the inner frame 2 to finish the vibration of driving the filter disc 3 to reciprocate up and down in the inner frame 2; the power device 4 is arranged on the outer frame 1 and drives the inner frame 2 and the filter disc 3 to rotationally contact smoke in the outer frame 1; the flue gas flows between the filter discs 3 and is mixed with the medium to finish filtration;
setting: setting initial values of a medium flow rate, a vibration frequency of the filter disc 3 and a rotation speed of the inner frame 2; setting initial values of the concentration, the flow rate and the granularity of the flue gas; standard values of gas flow rate and smoke content;
the deacidification tower flue gas purification system starts to work: the power device 4 drives the inner frame 2 to rotate, and the encoder detects the rotation speed of the power device 4 so as to know the rotation speed of the inner frame 2; the vibration device 5 drives the filter disc 3 to vibrate, and the first controller detects the power of the vibration device 5 so as to know the vibration frequency of the filter disc 3; the medium is introduced into the deacidification tower flue gas purification system, and a third sensor detects the flow velocity of the medium;
the deacidification tower flue gas purification system flows in flue gas, and the first sensor detects the concentration, the flow speed and the granularity of the flue gas; the flue gas enters the outer frame 1 and flows between the filter discs 3, the flue gas is filtered and purified by the medium, and the flue gas is filtered and purified to form gas to be discharged; the second sensor detects the smoke dust content in the gas and the flow rate of the gas;
the measuring and calculating steps are as follows: detecting the detection values of the concentration, the flow rate and the granularity of the flue gas; calculating the difference between the detection value and the previous detection value in the concentration, the flow rate and the granularity of the flue gas; detecting the discharge value of the gas flow rate and the smoke dust content; calculating a deviation value between the gas flow rate discharge value and the previous discharge value; calculating a deviation value of the smoke content exceeding a standard value;
and (3) adjusting: and according to the detection values of the concentration, the flow rate and the granularity of the flue gas, and the emission values of the gas flow rate and the smoke dust content, adjusting the initial values of the medium flow rate, the vibration frequency of the filter disc 3 and the rotation speed of the inner frame 2.
And in the setting step, initial values of the concentration, the flow rate and the granularity of the flue gas discharged by the deacidification tower are set. And finally determining initial values of the medium flow rate, the vibration frequency of the filter disc 3 and the rotation speed of the inner frame 2 through standard values of the smoke dust content of the gas.
The position of the deacidification tower flue gas purification system flowing into the flue gas is provided with a first sensor and a detection position for detecting the concentration, the flow speed and the granularity of the flue gas.
And a second sensor is arranged at the position of the gas discharged by the flue gas purification system of the deacidification tower and used for detecting the smoke dust content in the gas and the flow velocity of the gas.
And a third sensor is arranged at the position of the deacidification tower flue gas purification system, which is connected with the medium source, and is used for detecting the flow velocity of the inflow medium. The vibrator 53 is connected with a first controller, and the first controller is used for detecting and adjusting the power of the vibrator 53 to finish the detection and adjustment of the vibration frequency of the filter disc 3. The driving end of the power device 4 is provided with an encoder, the power device 4 is connected with a second controller, and the encoder detects the rotation speed of the power device 4, so that the rotation speed of the inner frame 2 is known. The second controller is used for adjusting the power of the power device 4, so that the rotation speed of the inner frame 2 is adjusted.
In the setting step, an initial value or a standard value is set for each parameter, so that the deacidification tower flue gas purification system can operate and work, and then each parameter is adjusted according to specific conditions.
The actual values of the concentration, flow rate and granularity of the flue gas deviate from the set initial values. If the medium flow rate, the vibration frequency of the filter disc 3 and the rotation speed of the inner frame 2 are all fixed, the smoke content emission of the gas may be out of standard.
The detection values of each detection of the concentration, the flow rate and the granularity of the flue gas are deviated from the detection values of the concentration, the flow rate and the granularity of the flue gas in the previous detection. Likewise, if the medium flow rate, the vibration frequency of the filter disc 3 and the rotation speed of the inner frame 2 are all fixed, the smoke content emission of the gas may be out of standard.
According to the application, through the measuring and calculating steps, not only the difference value of the concentration, the flow rate and the granularity of the smoke gas is obtained, but also the deviation value of the flow rate and the smoke dust content of the gas is obtained. And determining the adjusting time according to the obtained difference value and the deviation value, and adjusting the initial values of the medium flow rate, the vibration frequency of the filter disc 3 and the rotating speed of the inner frame 2, so that the smoke dust content emission of the gas finally reaches the standard.
In the adjusting step: and when the percentage of the difference value of the concentration, the flow rate and the granularity of the flue gas and the detection value of the concentration, the flow rate and the granularity of the flue gas is more than 3%, adjusting the initial values of the medium flow rate, the vibration frequency of the filter disc 3 and the rotation speed of the inner frame 2.
The concentration, flow rate and granularity of the flue gas are changed in real time, and the medium flow rate, the vibration frequency of the filter disc 3 and the rotation speed of the inner frame 2 do not need to be frequently adjusted. Only when the change of the concentration, the flow rate and the granularity of the flue gas is large enough, the initial values of the medium flow rate, the vibration frequency of the filter disc 3 and the rotating speed of the inner frame 2 need to be adjusted and regulated.
When the smoke concentration value changes for the first time, subtracting the initial value of the smoke concentration from the detection value of the smoke concentration to obtain a difference value of the smoke concentration. When the smoke concentration value changes for a plurality of times, the difference value of the smoke concentration is obtained by subtracting the previous detection value of the smoke concentration from the detection value of the smoke concentration.
And when the smoke flow rate changes for the first time, subtracting the initial value of the smoke flow rate from the detection value of the smoke flow rate to obtain a difference value of the smoke flow rate. When the smoke flow velocity value is changed for a plurality of times, the difference value of the smoke flow velocity is obtained by subtracting the previous detection value of the smoke flow velocity from the detection value of the smoke flow velocity.
And when the flue gas granularity changes for the first time, subtracting the initial value of the flue gas granularity from the detection value of the flue gas granularity to obtain a difference value of the flue gas granularity. When the flue gas granularity value changes for a plurality of times, the difference value of the flue gas granularity is obtained by subtracting the previous detection value of the flue gas granularity from the detection value of the flue gas granularity.
The adjustment can be made when the percentage of any one of the difference in the concentration, flow rate and granularity of the flue gas and the percentage of the initial value of the concentration, flow rate and granularity of the flue gas is greater than 3%.
When the percentage of the deviation value of the gas flow rate and the discharge value of the gas flow rate is more than 7%, the initial values of the rotation speed of the inner frame 2 and the vibration frequency of the filter disc 3 are adjusted. When the deviation value of the gas smoke content appears, the initial values of the medium flow rate and the vibration frequency of the filter disc 3 are adjusted.
Subtracting the standard value of the gas smoke content from the emission value of the gas smoke content to obtain the deviation value of the gas smoke content. When the deviation value of the gas smoke content appears, and the deviation value is a positive number, the initial values of the medium flow rate and the vibration frequency of the filter disc 3 are required to be adjusted. If the deviation value of the gas smoke content is negative or 0, it indicates that the gas smoke content meets the emission standard, and the initial values of the medium flow rate and the vibration frequency of the filter disc 3 do not need to be adjusted.
Subtracting the standard value of the gas flow rate from the discharge value of the gas flow rate to obtain the deviation value of the gas flow rate. The change of the gas flow rate is mainly caused by the blockage of the inner net barrel 6 along with the change of the gas flow rate, the change is slower, and the inner net barrel 6 is seriously blocked when the deviation value of the gas flow rate and the discharge value of the gas flow rate are larger than 7%. However, the deacidification tower flue gas purification system is in a working state, and the cleaning of the inner net barrel 6 cannot be immediately stopped. Through the adjustment to inner frame 2 rotational speed and filter disc 3 vibration frequency, guarantee that gas smoke and dust content is up to standard all the time. When the deacidification tower flue gas purification system reaches a cleaning period, the inner net barrel 6 is cleaned.
In the measuring and calculating step, the deviation value of the gas flow rate and the smoke content is calculated by calculating the difference value of the concentration, the flow rate and the granularity of the smoke, so that the time for adjusting the medium flow rate, the vibration frequency of the filter disc 3 and the initial value of the rotation speed of the inner frame 2 is obtained.
In the adjusting step, the initial values of the medium flow rate, the vibration frequency of the filter disc 3 and the rotating speed of the inner frame 2 are specifically adjusted through the detection values of the concentration, the flow rate and the granularity of the flue gas, the discharge values of the gas flow rate and the smoke dust content.
And adjusting the vibration frequency of the filter disc 3 according to the detection value of the flow velocity of the flue gas. And according to the detection value of the smoke concentration, adjusting the vibration frequency of the filter disc 3 and the medium flow rate. And according to the detection value of the granularity of the flue gas, adjusting the vibration frequency of the filter disc 3, the medium flow speed and the rotation speed of the inner frame 2.
When the detected value of the flow rate of the flue gas is increased compared with the initial value of the flow rate of the flue gas, the initial value of the vibration frequency of the adjusting filter disc 3 is increased. When the detected value of the flow rate of the flue gas is reduced from the initial value of the flow rate of the flue gas, the initial value of the vibration frequency of the adjustment filter 3 is reduced.
When the flow rate of the flue gas increases, more flue gas flows into the space between the filter discs 3, and by increasing the vibration frequency of the filter discs 3, the interval distance between the filter discs 3 is correspondingly increased, so that more flue gas can pass through the filter discs 3. When the flow rate of the flue gas decreases, the flue gas flowing between the filter sheets 3 decreases, and by decreasing the vibration frequency of the filter sheets 3, the distance between the filter sheets 3 decreases, and a proper amount of flue gas passes between the filter sheets 3.
When the detected value of the smoke concentration is increased compared with the initial value of the smoke concentration, the initial value of the vibration frequency and the medium flow rate of the adjusting filter disc 3 is increased. When the detected value of the smoke concentration is reduced from the initial value of the smoke concentration, the initial value of the vibration frequency and the medium flow rate of the filter 3 is adjusted to be reduced.
When the smoke concentration increases, the same smoke quantity is increased through the amount of purification needed between the filter discs 3, the distance between the filter discs 3 is correspondingly increased by increasing the vibration frequency of the filter discs 3 and the flow velocity of the medium, the filter discs 3 can spray more medium, more smoke passes through the filter discs 3, and the purification of the smoke is completed through a large amount of medium spraying. When the smoke concentration is reduced, the amount of the same smoke passing through the filter discs 3 is reduced, the distance between the filter discs 3 is correspondingly reduced by reducing the vibration frequency of the filter discs 3 and the flow speed of the medium, the medium sprayed by the filter discs 3 is reduced, and the filter discs 3 pass through a proper amount of smoke and spray a proper amount of medium to finish the purification of the smoke.
When the detected value of the flue gas granularity is increased compared with the initial value of the flue gas granularity, the initial values of the vibration frequency of the filter disc 3, the medium flow speed and the rotating speed of the inner frame 2 are increased. When the detected value of the flue gas granularity is reduced compared with the initial value of the flue gas granularity, the initial values of the vibration frequency of the filter disc 3, the medium flow speed and the rotating speed of the inner frame 2 are adjusted to be reduced.
When the granularity of the flue gas increases, the granularity of the smoke dust in the flue gas between the filter discs 3 increases, the interval distance between the filter discs 3 correspondingly increases by increasing the vibration frequency of the filter discs 3, the medium flow speed and the rotating speed of the inner frame 2, the filter discs 3 can spray more media, meanwhile, the tooth profile 31 contacts the smoke dust at a higher speed by increasing the rotating speed of the inner frame 2, the tooth profile 31 breaks up the smoke dust, so that more flue gas passes through the filter discs 3, and the broken smoke dust and the media are mixed by spraying a large amount of media, thereby completing the purification of the flue gas. When the granularity of the smoke is reduced, the granularity of the smoke dust in the smoke between the filter discs 3 is reduced, the interval distance between the filter discs 3 is correspondingly reduced by reducing the vibration frequency of the filter discs 3, the medium flow speed and the rotating speed of the inner frame 2, the filter discs 3 spray a proper amount of medium, meanwhile, the rotating speed of the inner frame 2 is reduced, the quantity of the scattered smoke dust of the tooth shape 31 is small, a proper amount of smoke passes through the filter discs 3, and the smoke purification is completed by spraying a proper amount of medium.
The rotation speed of the inner frame 2 and the vibration frequency of the filter disc 3 are adjusted according to the discharge value of the gas flow rate. And adjusting the medium flow rate and the vibration frequency of the filter disc 3 according to the emission value of the gas smoke content.
When the discharge value of the gas flow rate is increased from the standard value of the gas flow rate, the initial value of the rotation speed of the inner frame 2 is adjusted to be increased and the initial value of the vibration frequency of the filter 3 is adjusted to be decreased. When the discharge value of the gas flow rate is reduced from the standard value of the gas flow rate, the initial value of the rotation speed of the inner frame 2 is adjusted to be reduced and the initial value of the vibration frequency of the filter 3 is adjusted to be increased.
When the gas flow rate increases, after the rotation speed of the inner frame 2 increases, the smoke is blocked at the periphery of the rotation of the inner frame 2, the amount of the smoke entering the filter discs 3 is reduced, meanwhile, the vibration frequency of the filter discs 3 is reduced, the gap between the filter discs 3 is reduced, the amount of the smoke entering the filter discs 3 is further reduced, so that the purifying amount of the smoke is reduced, and the gas flow rate is gradually reduced. When the gas flow rate is reduced, after the rotation speed of the inner frame 2 is reduced, the smoke enters between the filter discs 3, meanwhile, the vibration frequency of the filter discs 3 is increased, the gap between the filter discs 3 is increased, the amount of the smoke entering between the filter discs 3 is further increased, so that the purifying amount of the smoke is increased, and the gas flow rate is gradually increased.
When the discharge value of the gas smoke content is increased compared with the standard value of the gas smoke content, the initial value of the flow velocity of the adjusting medium is increased and the initial value of the vibration frequency of the filter disc 3 is reduced. When the discharge value of the gas smoke content is reduced from the standard value of the gas smoke content, the initial values of the vibration frequency of the filter disc 3, the medium flow rate and the rotation speed of the inner frame 2 are not adjusted.
When the content of the gas smoke dust is increased, the vibration frequency of the filter discs 3 is reduced, so that smoke gas entering between the filter discs 3 is reduced, and meanwhile, the medium quantity sprayed by the filter discs 3 is increased by increasing the flow velocity of the medium, and more smoke dust barrel mediums in the smoke gas are mixed. By reducing the entering amount of the smoke and improving the injection amount of the medium, the purification quality of the smoke is ensured, and the content of smoke dust in the gas is reduced.
When the gas smoke content is reduced, the gas smoke content meets the emission standard, and the initial values of the vibration frequency of the filter disc 3, the medium flow rate and the rotating speed of the inner frame 2 do not need to be adjusted.
The initial value and the standard value can be set through the setting step, so that the deacidification tower flue gas purification system can be operated firstly, and each parameter is adjusted according to real-time data after the operation. In the measuring and calculating step, the specific time for adjusting the parameters is obtained by calculating the difference value or the deviation value. The parameter adjustment timing of the present application is not frequently adjusted, but the difference or the deviation value is required to meet a specific condition. When the percentage of the difference value of the concentration, the flow rate and the granularity of the flue gas and the detection value of the concentration, the flow rate and the granularity of the flue gas is more than 3%, the initial values of the medium flow rate, the vibration frequency of the filter disc 3 and the rotation speed of the inner frame 2 are required to be adjusted; when the percentage of the deviation value of the gas flow rate and the discharge value of the gas flow rate is more than 7%, the initial values of the rotation speed of the inner frame 2 and the vibration frequency of the filter disc 3 are required to be adjusted; when the deviation value of the gas smoke content appears, the initial values of the medium flow rate and the vibration frequency of the filter disc 3 are required to be adjusted. By adjusting each parameter, the discharged gas meets the emission standard.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the application. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.
Claims (4)
1. A purification method of a deacidification tower flue gas purification system is characterized by comprising the following steps: when the deacidification tower flue gas purification system is used for purification, the method comprises the following steps of:
the position of the flue gas flowing into the flue gas purification system of the deacidification tower is provided with a first sensor and a detection position, and the first sensor is used for detecting the concentration, the flow speed and the granularity of the flue gas; the position of the gas exhausted by the flue gas purification system of the deacidification tower is provided with a second sensor for detecting the smoke dust content in the gas and the flow rate of the gas; a third sensor is arranged at the position of the deacidification tower flue gas purification system connected with the medium source and is used for detecting the flow velocity of the inflow medium;
the vibration device (5) is connected with a first controller, and the first controller is used for detecting and adjusting the power of the vibration device (5) to finish the detection and adjustment of the vibration frequency of the filter disc (3); the driving end of the power device (4) is provided with an encoder, the power device (4) is connected with a second controller, and the encoder detects the rotation speed of the power device (4) so as to know the rotation speed of the inner frame (2); the second controller is used for adjusting the power of the power device (4), so as to adjust the rotation speed of the inner frame (2);
the deacidification tower flue gas purification system includes: an outer frame (1) and an inner frame (2); the inner frame (2) is arranged in the outer frame (1) in the up-down direction; the filter disc (3) is arranged in the horizontal direction; the filter discs (3) are distributed and overlapped in the up-down direction and are arranged on the inner frame (2) to filter flue gas; the filter disc (3) is communicated with a medium source through the communicating inner frame (2); the power device (4) drives the inner frame (2) to rotate along the inner frame (1); the vibration end of the vibration device (5) is in rolling contact with the inner frame (2) to finish the vibration of driving the filter disc (3) to reciprocate up and down in the inner frame (2); the power device (4) is arranged on the outer frame (1) and drives the inner frame (2) and the filter disc (3) to rotationally contact smoke in the outer frame (1); the flue gas flows between the filter discs (3) and is mixed with the medium to finish filtration;
setting: setting initial values of medium flow rate, vibration frequency of the filter disc (3) and rotation speed of the inner frame (2); setting initial values of the concentration, the flow rate and the granularity of the flue gas; standard values of gas flow rate and smoke content;
the deacidification tower flue gas purification system starts to work: the power device (4) drives the inner frame (2) to rotate, and the encoder detects the rotation speed of the power device (4) so as to know the rotation speed of the inner frame (2); the vibration device (5) drives the filter disc (3) to vibrate, and the first controller detects the power of the vibration device (5) so as to know the vibration frequency of the filter disc (3); the medium is introduced into the deacidification tower flue gas purification system, and a third sensor detects the flow velocity of the medium;
the deacidification tower flue gas purification system flows in flue gas, and the first sensor detects the concentration, the flow speed and the granularity of the flue gas; the flue gas enters the outer frame (1) and flows between the filter discs (3), the flue gas is filtered and purified by the medium, and the flue gas is filtered and purified to form gas to be discharged; the second sensor detects the smoke dust content in the gas and the flow rate of the gas;
the measuring and calculating steps are as follows: detecting the detection values of the concentration, the flow rate and the granularity of the flue gas; calculating the difference between the detection value and the previous detection value in the concentration, the flow rate and the granularity of the flue gas; detecting the discharge value of the gas flow rate and the smoke dust content; calculating a deviation value between the gas flow rate discharge value and the previous discharge value; calculating a deviation value of the smoke content exceeding a standard value;
and (3) adjusting: and according to the detection values of the concentration, the flow rate and the granularity of the flue gas, and the emission values of the gas flow rate and the smoke dust content, adjusting the initial values of the medium flow rate, the vibration frequency of the filter disc (3) and the rotating speed of the inner frame (2).
2. The purification method of the deacidification tower flue gas purification system as claimed in claim 1, wherein: in the adjusting step: when the percentage of the difference value of the concentration, the flow rate and the granularity of the flue gas and the detection value of the concentration, the flow rate and the granularity of the flue gas is more than 3%, the initial values of the medium flow rate, the vibration frequency of the filter disc (3) and the rotation speed of the inner frame (2) are adjusted;
when the percentage of the deviation value of the gas flow rate and the discharge value of the gas flow rate is more than 7%, the initial values of the rotation speed of the inner frame (2) and the vibration frequency of the filter disc (3) are adjusted; when the deviation value of the gas smoke content appears, the initial values of the medium flow rate and the vibration frequency of the filter disc (3) are adjusted.
3. The purification method of the deacidification tower flue gas purification system as claimed in claim 2, wherein: according to the detection value of the flow velocity of the flue gas, adjusting the vibration frequency of the filter disc (3); according to the detection value of the flue gas concentration, adjusting the vibration frequency of the filter disc (3) and the medium flow rate; and according to the detection value of the granularity of the flue gas, adjusting the vibration frequency of the filter disc (3), the medium flow speed and the rotating speed of the inner frame (2).
4. A method for purifying a flue gas purification system of a deacidification tower as claimed in claim 3, wherein: according to the discharge value of the gas flow velocity, the rotation speed of the inner frame (2) and the vibration frequency of the filter disc (3) are adjusted; and adjusting the medium flow rate and the vibration frequency of the filter disc (3) according to the emission value of the gas smoke content.
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| CN114173909A (en) * | 2021-06-30 | 2022-03-11 | 艾感科技(广东)有限公司 | Self-starting purifier based on environmental change |
| CN115112790A (en) * | 2022-06-10 | 2022-09-27 | 永春县产品质量检验所(福建省香产品质量检验中心、国家燃香类产品质量监督检验中心(福建)) | Method for detecting multiple polycyclic aromatic hydrocarbons in burning incense smoke |
| CN115253463A (en) * | 2022-07-27 | 2022-11-01 | 宁波长荣酿造设备有限公司 | Filtering system and control method |
| CN116020253A (en) * | 2023-02-21 | 2023-04-28 | 国家电投集团江西电力有限公司分宜发电厂 | Photocatalyst pretreatment type flue gas denitration device and intelligent monitoring method thereof |
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