CN117983051B - High-efficient low temperature denitrification facility of high dust resistant flue gas - Google Patents
High-efficient low temperature denitrification facility of high dust resistant flue gas Download PDFInfo
- Publication number
- CN117983051B CN117983051B CN202410389150.XA CN202410389150A CN117983051B CN 117983051 B CN117983051 B CN 117983051B CN 202410389150 A CN202410389150 A CN 202410389150A CN 117983051 B CN117983051 B CN 117983051B
- Authority
- CN
- China
- Prior art keywords
- dust
- box
- plate
- flue gas
- filter plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000428 dust Substances 0.000 title claims abstract description 182
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 73
- 239000003546 flue gas Substances 0.000 title claims abstract description 73
- 239000000779 smoke Substances 0.000 claims abstract description 58
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000003054 catalyst Substances 0.000 claims abstract description 38
- 238000006243 chemical reaction Methods 0.000 claims abstract description 33
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims description 44
- 238000007599 discharging Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 4
- 241000208125 Nicotiana Species 0.000 claims description 3
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims 1
- 239000008187 granular material Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 20
- 230000000903 blocking effect Effects 0.000 abstract description 8
- 238000002203 pretreatment Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 description 20
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 14
- 230000009286 beneficial effect Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 6
- 238000005054 agglomeration Methods 0.000 description 4
- 230000002776 aggregation Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a high-efficiency low-temperature denitration device for high-dust-resistant flue gas, which comprises the following components: the reaction tower is internally provided with a smoke inlet pipe, an ammonia spraying grid, a splitter plate, a catalyst and a smoke outlet pipe in sequence along the flow direction of the smoke; the ammonia spraying grid is used for spraying ammonia into the flue gas, a dust fall component is arranged between the ammonia spraying grid and the smoke inlet pipe, the dust fall component comprises a filter plate and a collecting box, the filter plate is arranged on a flue gas path and is obliquely arranged for removing large-particle dust mixed in the flue gas, the collecting box is used for collecting filtered dust, and an on-off component is arranged between the filter plate and the collecting box. According to the invention, the dust fall pre-treatment is carried out after the flue gas enters, so that the dust content in the flue gas is effectively reduced, the pin removal reaction of the flue gas is facilitated, the possibility of blocking and damaging the catalyst is reduced, the bottom of the filter plate can be independently blocked, when the dust with a preset amount is accumulated in the collecting box, the bottom end of the filter plate is blocked and then taken out of the collecting box for centralized treatment, the shutdown is not needed, and the filter plate has more practicability in the treatment of high-dust flue gas.
Description
Technical Field
The invention relates to the technical field of automobile overturning, in particular to a high-dust-resistant flue gas high-efficiency low-temperature denitration device.
Background
Flue gas is a mixture of gas and smoke dust, which is the main cause of pollution to the atmosphere. The composition of the flue gas is complex, and the gases include water vapor, SO 2、N2、O2、CO、CO2, hydrocarbons, nitrogen oxides (NOx), and the like. In the flue gas, NOx is a general name of a mixture of NO, NO 2 and the like, is a main atmospheric pollutant, and can cause photochemical pollution with hydrocarbon under the action of strong light; NOx released into the atmosphere is a major cause of acid rain, severely jeopardizing the ecological environment.
The low temperature denitration technology is a novel flue gas treatment technology, and mainly uses chemical reaction to reduce nitrogen oxides (NOx) in flue gas at low temperature to generate harmless nitrogen and water vapor. The reaction principle is 6NO+4NH 3→5N2+6H2 O, and compared with the traditional high-temperature denitration technology, the low-temperature denitration technology has higher reaction rate and lower energy consumption.
In the low-temperature denitration process of the flue gas, because a great amount of dust is mixed in the flue gas, the flue gas is directly introduced into the reaction tower to cause serious pollution in the tower, the catalyst is easy to damage and block when contacted with dust and particulate matters, the denitration effect is influenced,
Among the prior art, as in chinese patent application number 202322237969.8, a SCR denitration dust collector is disclosed, and it includes the SCR denitration reactor, the one side of SCR denitration reactor is installed and is used for the tobacco pipe that advances that the flue gas was removed dust, advance the both sides of tobacco pipe and all offered the spacing groove, two the inner wall in spacing groove is assembled jointly and is connected the frame, sealing block is all installed at the both ends of connecting the frame. The collecting box for collecting dust is arranged at the bottom end of the front surface of the connecting frame, which is close to the two fixing grooves. This SCR denitration dust collector needs shift out the back with the filter screen to collect the interior deposition of box and handle, when the filter screen shifts out, there is the clearance between the faying of filter screen and the spacing groove, and the flue gas still has leakage risk. Therefore, there is a need to provide a high-dust-resistant flue gas high-efficiency low-temperature denitration device to at least partially solve the problems in the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
In order to at least partially solve the above problems, the present invention provides a high-dust-resistant flue gas high-efficiency low-temperature denitration device, including:
The reaction tower is internally provided with a smoke inlet pipe, an ammonia spraying grid, a splitter plate, a catalyst and a smoke outlet pipe in sequence along the flow direction of the smoke; the ammonia spraying grid is used for spraying ammonia into the flue gas, a dust fall component is arranged between the ammonia spraying grid and the smoke inlet pipe, the dust fall component comprises a filter plate and a collecting box, the filter plate is arranged on a flue gas path and is obliquely arranged for removing large-particle dust mixed in the flue gas, the collecting box is used for collecting filtered dust, and an on-off component is arranged between the filter plate and the collecting box.
Preferably, the catalyst comprises a plurality of catalyst plates arranged side by side in the direction of flow of the flue gas, the catalyst plates housing a plurality of catalyst units arranged in an array.
Preferably, the flow dividing plate comprises a plurality of flow dividing grids which are arranged in an array mode, and each flow dividing grid is arranged in a one-to-one correspondence with the catalyst units.
Preferably, the dust settling assembly further comprises:
The transmission box is connected to the inner wall of the upper part of the reaction tower, is arranged below the filter plate, is arranged at the top end of the transmission box near one side opening of the smoke inlet pipe, is obliquely arranged, and is connected between the edge of the opening of the transmission box and the top end of the smoke inlet pipe;
the quantitative dust collection box is connected to the arc bottom surface in the transmission box in a sliding manner, and one side of the top end of the quantitative dust collection box is hinged with the bottom end frame of the filter plate.
Preferably, the hinge point of the quantitative dust collection box and the filter plate is arranged concentrically with the arc bottom surface of the transmission box, and the contact surface of the quantitative dust collection box and the transmission box is correspondingly arranged in an arc shape.
Preferably, the two ends of the filter plate are respectively connected with the edge of the opening of the transmission case and the top end of the smoke inlet pipe, the filter screen surface on the filter plate corresponds to the smoke inlet pipe, and the edge of the bottom end of the filter screen surface is higher than the quantitative dust collection case.
Preferably, the quantitative dust box comprises: the smoke exhaust device comprises a box plate, an arc-shaped plate, a filter screen and an upper frame, wherein the box plate is bent and arranged, the arc-shaped plate is connected to one side of the box plate, which is close to a smoke inlet pipe, the filter screen is bent and arranged above the box plate and the arc-shaped plate in a buckling mode, the arc-shaped plate is slidably connected to the arc-shaped bottom surface of a transmission box, the upper frame is connected to one side, which is far away from the smoke inlet pipe, of the top end of the box plate, the upper frame is hinged to the frame at the bottom end of the filter plate, and a dust exhaust port is formed in the most concave point of the arc-shaped plate.
Preferably, the bottom end of the transmission case is provided with an ash discharging passage communicated with the collection case, an ash collecting drawer for collecting dust is slidably arranged in the collection case, and the ash collecting drawer and the collection case are detachably arranged.
Preferably, the transmission case lower part is provided with the break-make subassembly, and the break-make subassembly includes:
the chute is arranged at the lower part of the transmission case, is arc-shaped and is concentric with the arc-shaped bottom surface of the transmission case, and the ash discharge passage penetrates through the chute;
The plugging plate is connected in the chute in a sliding way, plugs the ash discharge passage, and a spring is connected between one side of the plugging plate, which is far away from the smoke inlet pipe, and the end part of the chute;
The sliding block is connected with the top end of the plugging plate, penetrates out of the arc-shaped bottom surface of the transmission case and is abutted to the lower part of the case plate, and a slot for sliding of the sliding block is formed in the top end of the sliding groove.
Preferably, the electronic lock is arranged on the dust collecting drawer, and the angle sensor is arranged on the hinge shaft of the quantitative dust collecting box and the filter plate and used for detecting the rotation angle of the quantitative dust collecting box, and when the rotation angle reaches a preset value, the dust collecting drawer in the collecting box is in a locking state.
Preferably, the reaction tower barrel sets up to cylindrically, is equipped with the pressure boost subassembly in the reaction tower between spouting ammonia grid and the flow distribution plate, and the pressure boost subassembly includes:
the pressurizing cylinder is connected in the supporting seat in the center of the reaction tower;
the conical pipe is connected to the top end of the pressurizing cylinder and arranged above the supporting seat, and the edge of the conical pipe is connected to the inner wall of the reaction tower in a fitting way;
The lower parts of the diversion grids are outwards bent, and a plurality of diversion grids are uniformly connected to the bottom end of the booster cylinder;
the bearing plate is connected to the bottom end of the diversion grating and is used for plugging the lower part of the diversion grating;
the motor is connected to the center of the bearing plate, and a rotating shaft arranged at the output end of the motor penetrates through the bearing plate and extends to the upper part of the flow guide grating;
the rotating blocks are uniformly connected to the rotating shaft along the circumferential direction;
The protecting shell is connected to the lower part of the bearing plate and buckled on the outer side of the motor, and the edge of the protecting shell is provided with a diversion surface inclining towards the center.
Preferably, the supercharging assembly further comprises:
the upper rolling block is arranged below the rotating block;
the elastic frame is arranged between the rotating block and the upper rolling block and comprises four elastic sheets which are arranged in a bending mode and a spring which is arranged in the center of the elastic sheets, and two ends of the elastic sheets and two ends of the spring are respectively connected with the rotating block and the upper rolling block;
the lower rolling block is connected above the bearing plate and positioned in the guide grid, and is suitable for the upper rolling speed.
Compared with the prior art, the invention at least comprises the following beneficial effects:
According to the high-dust-resistant flue gas high-efficiency low-temperature denitration device, the dust pre-falling treatment is carried out after the flue gas enters, so that large particle dust mixed in the flue gas is removed, the dust content in the flue gas is effectively reduced, the denitration reaction of the flue gas is facilitated, the adhesion of smoke dust on the surface of a catalyst is reduced, the possibility of blocking and damaging the catalyst is reduced, the bottom of the filter plate can be independently blocked, when a preset amount of dust is accumulated in a collecting box, the bottom of the filter plate is blocked, and then the filter plate is taken out for centralized treatment without stopping, so that the high-dust-resistant flue gas denitration device has more practicability in the treatment of the high-dust flue gas.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a high-dust-resistant flue gas high-efficiency low-temperature denitration device;
FIG. 2 is a schematic cross-sectional view of a dust suppression assembly according to the present invention;
FIG. 3 is a schematic view of the partial structure of FIG. 2A according to the present invention;
FIG. 4 is a schematic cross-sectional view of the dust settling assembly of the present invention in a dust-discharging state;
FIG. 5 is a schematic view of the partial structure of the present invention at B in FIG. 4;
FIG. 6 is a schematic view of the mounting structure of the booster assembly of the present invention;
FIG. 7 is a schematic view of a supercharging assembly according to the present invention;
FIG. 8 is a schematic cross-sectional view of a supercharging assembly of the present invention;
fig. 9 is a schematic view showing the installation structure of the upper roll pressing block in the present invention.
In the figure: 1. a reaction tower; 2. a smoke inlet pipe; 3. an ammonia spraying grid; 4. a diverter plate; 5. a catalyst; 6. a smoke outlet pipe; 7. a filter plate; 8. a collection box; 11. a transmission case; 12. a quantitative dust box; 13. a box plate; 14. an arc-shaped plate; 15. a filter screen; 16. an upper frame; 17. an ash discharge port; 18. an ash discharge passage; 19. an ash discharge drawer; 21. a chute; 22. a plugging plate; 23. a slide block; 24. slotting; 31. a pressurizing cylinder; 32. a support base; 33. a conical tube; 34. a flow guiding grille; 35. a carrying plate; 36. a motor; 37. a rotating shaft; 38. a rotating block; 39. a protective shell; 40. the upper grinding block; 41. an elastic frame; 42. a spring plate; 43. a spring; 44. and (5) pressing the blocks.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
Example 1:
as shown in fig. 1 and 2, the present invention provides a high-dust-resistant flue gas high-efficiency low-temperature denitration device, which comprises:
the reaction tower 1 is internally provided with a smoke inlet pipe 2, an ammonia spraying grid 3, a splitter plate 4, a catalyst 5 and a smoke outlet pipe 6 in sequence along the flow direction of the smoke; the ammonia spraying grid 3 is used for spraying ammonia into the flue gas, a dust fall component is arranged between the ammonia spraying grid 3 and the smoke inlet pipe 2, the dust fall component comprises a filter plate 7 and a collecting box 8, the filter plate 7 is arranged on a flue gas path and is obliquely arranged for removing large-particle dust mixed in the flue gas, the collecting box 8 is used for collecting filtered dust, and an on-off component is arranged between the filter plate 7 and the collecting box 8.
The catalyst 5 comprises a plurality of catalyst plates arranged side by side in the direction of flow of the flue gas, the catalyst plates accommodating a plurality of catalyst units arranged in an array.
The splitter plate 4 comprises a plurality of splitter cells arranged in an array, and each splitter cell is arranged in a one-to-one correspondence with the catalyst units.
The working principle and the beneficial effects of the technical scheme are as follows:
When the high-dust-resistant flue gas high-efficiency low-temperature denitration device is used, flue gas enters from the smoke inlet pipe 2 at the top of the reaction tower 1, ammonia gas is sprayed into the flue gas through the ammonia spraying grid 3, the ammonia gas and the flue gas are mixed for reaction, the mixed flue gas evenly distributes the flue gas through the splitter plate 4 and is aligned to each catalyst unit in the catalyst plate, and the flue gas and the catalyst are fully contacted and then subjected to denitration reaction. After the flue gas enters the reaction tower 1, the flue gas firstly passes through a filter plate 7, large-particle dust mixed in the flue gas is removed, the particle size of the removed dust corresponds to the aperture of the filter plate 7, and the dust accumulated on the filter plate 7 falls into a collecting box 8 for centralized treatment; the filter plate 7 is obliquely arranged, so that the contact area of the filter plate 7 and smoke is increased, after large-particle dust in the smoke is filtered out, the dust falls downwards under the action of gravity instead of being totally attached to the surface of the filter plate 7, and when the smoke passes through the filter plate 7, the smoke particles impact the filter plate 7 to shake the filter plate 7, so that the shaking of the smoke particles is accelerated; the connection part of the filter plate 7 can also be provided with a spring or a resonance component for increasing the shaking amplitude of the filter plate, and the application is not repeated. When the dust in the collecting box 8 reaches a preset amount, the bottom of the filter plate 7 is plugged through the on-off assembly, and the collecting box 8 is taken out for centralized treatment.
The invention provides a high-dust-resistant flue gas high-efficiency low-temperature denitration device, which is characterized in that dust is pre-reduced after flue gas enters, large-particle dust mixed in the flue gas is removed, the dust content in the flue gas is effectively reduced, the denitration reaction of the flue gas is facilitated, the adhesion of smoke dust on the surface of a catalyst 5 is reduced, the possibility of blocking and damaging the catalyst 5 is reduced, the bottom of a filter plate 7 can be independently blocked, when a preset amount of dust is accumulated in a collecting box 8, the bottom of the filter plate 7 is blocked, and then the collecting box 8 is taken out for centralized treatment without stopping, so that the high-dust-resistant flue gas denitration device has more practicability in the treatment of the high-dust flue gas.
Example 2:
as shown in fig. 2 to 5, the dust settling assembly further includes, on the basis of embodiment 1 above:
the transmission box 11 is connected to the inner wall of the upper part of the reaction tower 1, the transmission box 11 is arranged below the filter plate 7, the top end of the transmission box 11 is close to an opening on one side of the smoke inlet pipe 2, the filter plate 7 is obliquely arranged and is connected between the edge of the opening of the transmission box 11 and the top end of the smoke inlet pipe 2;
the quantitative dust box 12, the quantitative dust box 12 is connected on the arc bottom surface in the transmission box 11 in a sliding way, and one side of the top end of the quantitative dust box 12 is hinged with the side frame of the bottom end of the filter plate 7.
The hinge point of the quantitative dust box 12 and the filter plate 7 is arranged concentrically with the arc bottom surface of the transmission box 11, and the contact surface of the quantitative dust box 12 and the transmission box 11 is correspondingly arranged in an arc shape.
The two ends of the filter plate 7 are respectively connected with the opening edge of the transmission case 11 and the top end of the smoke inlet pipe 2, the filter screen surface on the filter plate 7 corresponds to the smoke inlet pipe 2, and the bottom edge of the filter screen surface is higher than the quantitative dust collection case 12.
The bottom end of the transmission case 11 is provided with an ash discharging passage 18 communicated with the collection case 8, the collection case 8 is slidably provided with an ash collecting drawer 19 for collecting dust, and the ash collecting drawer 19 and the collection case 8 are detachably arranged.
The working principle and the beneficial effects of the technical scheme are as follows:
When the dust fall component is used, the bottom end of the filter screen surface of the filter plate 7 is higher than the quantitative dust collection box 12, so that flue gas preferentially passes through the filter plate 7 when entering, but does not flow into the quantitative dust collection box 12, thereby reducing air flow loss and reducing leakage possibility; the falling dust particles fall into the quantitative dust box 12, and when the dust amount in the quantitative dust box 12 reaches a preset amount, the quantitative dust box 12 is rotated to discharge the dust into the collecting tank 8 for subsequent concentration treatment.
Example 3:
As shown in fig. 2 to 5, on the basis of the above-described embodiment 2, the quantitative dust box 12 includes: the smoke inlet pipe 2 comprises a box plate 13, an arc plate 14, a filter screen 15 and an upper frame 16, wherein the box plate 13 is bent, the arc plate 14 is connected to one side of the box plate 13, which is close to the smoke inlet pipe 2, the filter screen 15 is bent, buckled and arranged above the box plate 13 and the arc plate 14, the arc plate 14 is slidably connected to the arc bottom surface of the transmission box 11, the upper frame 16 is connected to one side, which is far away from the smoke inlet pipe 2, of the top end of the box plate 13, the upper frame 16 is hinged to the frame at the bottom end of the filter plate 7, and an ash discharge port 17 is formed in the most concave point of the arc plate 14.
The working principle and the beneficial effects of the technical scheme are as follows:
The quantitative dust box 12 is of a semi-open box structure, a box plate 12 and an arc plate 14 are arranged at the lower part of the quantitative dust box 12, the arc plate 14 can relatively slide along the arc bottom surface of the transmission box 11, the sliding direction of the quantitative dust box 12 is ensured, when the quantitative dust box 12 is positioned at an initial position, a dust discharge port 17 on the arc plate 14 is blocked by the arc bottom surface of the transmission box 11, and dust particles in the quantitative dust box 12 are prevented from overflowing; the filter screen 15 on the upper part is bent to surround the box plate 12 and the arc plate 13, dust particles on the filter plate 7 can enter the quantitative dust box 12 through the filter screen 15 after falling, and smoke is not easy to mix again under the action of wind force, the aperture of the filter screen 15 is slightly larger than or equal to the aperture of the filter plate 7, so that the dust particles can smoothly enter the quantitative dust box 12, and the smoke of partial direct flow to the quantitative dust box 12 is filtered. The upper frame 16 extends out of the box plate 13 and is used for hinging with the frame at the bottom end of the filter plate 7. In the rotation process of the quantitative dust box 12, dust between the upper frame 16 and the frame of the filter plate 7 can slide into the quantitative dust box 12 along the upper frame 16, so that dust collection dead angles are reduced.
Example 4:
As shown in fig. 2 to 5, on the basis of the above embodiment 2, the lower portion of the transmission case 11 is provided with an on-off assembly including:
The chute 21 is arranged at the lower part of the transmission case 11, the chute 21 is arranged in an arc shape and is concentric with the arc bottom surface of the transmission case 11, and the ash discharge passage 18 passes through the chute 21;
The plugging plate 22 is connected in the chute 21 in a sliding way, the ash discharging passage 18 is plugged by the plugging plate 22, and a spring is connected between one side of the plugging plate 22 far away from the smoke inlet pipe 2 and the end part of the chute 21;
The sliding block 23 is connected with the top end of the plugging plate 22, the sliding block 23 penetrates through the arc-shaped bottom surface of the transmission case 11 and is abutted to the lower part of the case plate 13, and a slot 24 for sliding the sliding block 23 is formed in the top end of the sliding groove 21.
The working principle and the beneficial effects of the technical scheme are as follows:
When the quantitative dust collection box 12 is in the initial position, the quantitative dust collection box 12 does not rotate, the sliding block 23 is abutted under the box plate 13 under the action of a spring, and the ash discharge pipeline 18 is completely blocked by the blocking plate 22; along with the increase of the dust amount in the quantitative dust box 12, the weight of the quantitative dust box 12 is increased and rotates, the box plate 13 presses the sliding block 23 to rotate along with the quantitative dust box, the sliding block 23 slides along the slot 24, the blocking plate 22 slides along the sliding slot 21 and presses the spring to store energy until the blocking plate 22 is rotated to be separated from the dust discharging passage 18, the dust discharging passage 18 is opened, at the moment, the dust discharging port 17 on the arc plate 14 corresponds to the dust discharging passage 18, dust particles are discharged into the dust collecting drawer 19 through the dust discharging pipeline 19, and then the dust in the dust collecting drawer 19 can be intensively treated. After the dust is discharged, the weight of the quantitative dust box 12 is reduced, the blocking plate 22 is reversely rotated and reset under the action of the spring, and the quantitative dust box 12 is rotated and reset.
Through the structural design, when the dust particles in the quantitative dust box 12 reach a certain amount, the automatic discharge of the dust in the quantitative dust box 12 is effectively realized, manual cleaning is not needed, the dust in the quantitative dust box 12 is intermittently discharged, the influence on the discharged dust can be reduced, the possibility of dust backflow is reduced, the total discharge amount in the collecting box 8 is convenient to determine according to the single discharge amount of the dust, and the time node for dust centralized treatment is determined according to the discharge times, so that the treatment time point of the dust collecting drawer 19 is staggered from the dust discharge time point of the quantitative dust box 12, and the smoke is prevented from flowing out when dust is deposited; meanwhile, when the dust in the quantitative collection box 12 does not reach the preset quantity, the ash discharge pipeline 18 is in a blocking state, and the ash collection drawer 19 can be pulled out at the moment without long-time shutdown treatment.
Example 5:
On the basis of the above embodiment 2, an electronic lock is provided on the dust collection drawer 19, and an angle sensor is provided on the hinge shaft of the quantitative dust collection box 12 and the filter plate 7 for detecting the rotation angle of the quantitative dust collection box 12, and when the rotation angle reaches a preset value, the dust collection drawer 19 in the collection box 8 is in a locked state.
The working principle and the beneficial effects of the technical scheme are as follows:
An angle sensor is arranged on a hinge shaft of the quantitative dust box 12, when the quantitative dust box 12 rotates until the dust discharge port 17 is communicated with the dust discharge passage 18, the electronic lock is closed, the dust collection drawer 19 is locked and can not be opened, after the quantitative dust box 12 is reset, the electronic lock is opened, the dust collection drawer 19 is in a extractable state, so that the treatment time point of the dust collection drawer 19 is staggered with the dust discharge time point of the quantitative dust box 12, the fume is prevented from flowing out when dust is deposited, the fume leakage risk is further reduced, and the influence on the fume denitration treatment process is reduced.
Example 6:
As shown in fig. 6 to 9, on the basis of the above embodiment 1, the reaction tower 1 is cylindrical, and a pressurizing assembly is provided between the ammonia injection grid 3 and the flow dividing plate 4 in the reaction tower 1, the pressurizing assembly includes:
the pressurizing cylinder 31, the pressurizing cylinder 31 is connected in the supporting seat 32 in the center of the reaction tower 1;
The conical tube 33, the conical tube 33 connects to the top of the booster 31 and is set up above the supporting seat 32, the edge of the conical tube 33 is laminated and connected to the inner wall of the reaction tower 1;
the lower parts of the guide grids 34 are outwards bent, and a plurality of guide grids 34 are uniformly connected to the bottom end of the booster cylinder 31;
The bearing plate 35 is connected to the bottom end of the guide grating 34 and seals the lower part of the guide grating 34;
the motor 36, the motor 36 connects to the centre of the bearing plate 35, the spindle 37 that the output end of the motor 36 sets up passes the bearing plate 35 to guide the upper portion of the grille 34 to extend;
a rotating block 38, wherein the rotating blocks 38 are uniformly connected to the rotating shaft 37 along the circumferential direction;
The protecting shell 39, the protecting shell 39 is connected to the lower part of the bearing plate 35 and is buckled on the outer side of the motor 36, and the edge of the protecting shell 39 is provided with a diversion surface inclining towards the center.
The working principle and the beneficial effects of the technical scheme are as follows:
After the flue gas passes through the pre-dust fall of the filter plate 7, the air pressure of the flue gas can be lost, so that the flue gas cannot quickly pass through the catalyst, and the denitration effect is affected. Therefore, a pressurizing assembly is arranged in the reaction tower 1, when the reaction tower is used, smoke enters the pressurizing cylinder 31 through the conical pipe 33, the motor 36 is started to drive the rotating shaft 37 to rotate, the rotating block 38 on the rotating shaft 37 rotates along with the rotation to stir the smoke and the ammonia gas, so that the smoke and the ammonia gas are uniformly mixed in the pressurizing cylinder 31 and fully contacted, the mixed smoke is pressurized through the increase of flow velocity after stirring, namely, the mixed smoke is discharged outwards through the flow guide grating 34, the airflow flows along the flow guide grating 34 towards the inner wall of the pressurizing cylinder 31, one part flows downwards along the inner wall of the pressurizing cylinder 31, and the other part flows along the flow guide surface of the protecting shell 39 towards the center of the pressurizing cylinder 31, so that the airflow is uniformly distributed in the pressurizing cylinder 31. Through the structural design, the flue gas and the ammonia gas are uniformly mixed, so that the flue gas and the ammonia gas are fully contacted and reacted, meanwhile, the air flow is pressurized, the air pressure loss in the dust pre-settling process is compensated, the air flow can quickly pass through the catalyst 5 at a preset flow speed, and the denitration treatment effect is ensured; one part of the pressurized air flow flows to the side walls of the peripheral reaction towers 1, and the other part flows to the center of the reaction towers 1, so that the uniformity of the distribution of the air flow in the reaction towers 1 is improved, each position of the catalyst 5 is in uniform contact with the air flow, the direct impact on the local catalyst 5 is avoided, and the utilization rate of the catalyst is improved.
Example 7:
as shown in fig. 6 to 9, the supercharging assembly further includes, on the basis of embodiment 6 described above:
an upper rolling block 40, the upper rolling block 40 being disposed below the rotating block 38;
The elastic frame 41 is arranged between the rotating block 38 and the upper rolling block 40, the elastic frame 41 comprises four elastic sheets 42 which are arranged in a bending mode and a spring 43 which is arranged in the center of the elastic sheets 42, and two ends of the elastic sheets 42 and two ends of the spring 43 are respectively connected with the rotating block 38 and the upper rolling block 40;
the lower rolling block 44, the lower rolling block 44 is connected above the bearing plate 35 and is positioned in the diversion grid 34, and the lower rolling block 44 is matched with the upper rolling block 40. .
The working principle and the beneficial effects of the technical scheme are as follows:
The pressurizing assembly is further provided with a rolling block, after the flue gas passes through pre-dust fall, part of small-particle dust is mixed, after the flue gas is mixed with ammonia, the part of small-particle dust enters the pressurizing cylinder 31 and collides with the bearing plate 35, even agglomeration occurs when the accumulated amount is excessive, the upper rolling block 38 rotates to drive the upper rolling block 40 to rotate, rolling protrusions are arranged on the upper rolling block 40 and the lower rolling block 44, the accumulated agglomeration dust is crushed under the extrusion of the rolling protrusions, so that the dust can be restored to a small-particle state again, the non-agglomeration dust flies outwards under the action of stirring force and is mixed into the air flow again, and the agglomeration dust is blocked on the surface of the catalyst when passing through the catalyst 5; the catalyst 5 is not accumulated in the lower grinding block 44 and is not directly impacted in a block form, so that the catalyst 5 is effectively prevented from being damaged; an elastic frame 41 is provided between the rotating block 38 and the upper roller block 40 to allow the upper roller block 40 to move up and down so that it can rotate freely in the presence of dust particles.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (4)
1. High-efficient low temperature denitrification facility of high dust resistant flue gas, its characterized in that includes:
The reaction tower (1), the reaction tower (1) is internally provided with a smoke inlet pipe (2), an ammonia spraying grid (3), a splitter plate (4), a catalyst (5) and a smoke outlet pipe (6) in sequence along the flow direction of the smoke; ammonia spraying grid (3) are used for spraying into ammonia in the flue gas, are provided with dust fall subassembly between ammonia spraying grid (3) and the tobacco pipe (2) that advances, and dust fall subassembly includes filter (7) and collecting box (8), and filter (7) set up on the flue gas route and slope setting for get rid of the big granule dust that mix with in the flue gas, collecting box (8) are used for collecting the dust of filtering out, are equipped with on-off subassembly between filter (7) and collecting box (8), and dust fall subassembly still includes:
The transmission box (11) is connected to the inner wall of the upper part of the reaction tower (1), the transmission box (11) is arranged below the filter plate (7), the top end of the transmission box (11) is close to an opening on one side of the smoke inlet pipe (2), and the filter plate (7) is obliquely arranged and connected between the edge of the opening of the transmission box (11) and the top end of the smoke inlet pipe (2);
The quantitative dust box (12), the quantitative dust box (12) is connected on the arc bottom surface in the transmission box (11) in a sliding way, and one side of the top end of the quantitative dust box (12) is hinged with the side frame of the bottom end of the filter plate (7);
The hinge point of the quantitative dust collection box (12) and the filter plate (7) is arranged concentrically with the arc-shaped bottom surface of the transmission box (11), the contact surface of the quantitative dust collection box (12) and the transmission box (11) is correspondingly arranged into an arc shape, the two ends of the filter plate (7) are respectively connected with the opening edge of the transmission box (11) and the top end of the smoke inlet pipe (2), the filter screen surface on the filter plate (7) corresponds to the smoke inlet pipe (2), and the bottom end edge of the filter screen surface is higher than the quantitative dust collection box (12);
The quantitative dust box (12) comprises: the smoke inlet pipe comprises a box plate (13), an arc plate (14), a filter screen (15) and an upper frame (16), wherein the box plate (13) is bent, the arc plate (14) is connected to one side of the box plate (13) close to the smoke inlet pipe (2), the filter screen (15) is bent, arranged and buckled above the box plate (13) and the arc plate (14), the arc plate (14) is slidably connected to the arc bottom surface of a transmission case (11), the upper frame (16) is connected to one side of the top end of the box plate (13) far away from the smoke inlet pipe (2), the upper frame (16) is hinged to the frame at the bottom end of the filter plate (7), and an ash outlet (17) is formed in the most concave point of the arc plate (14);
The bottom end of the transmission case (11) is provided with an ash discharging passage (18) communicated with the collection case (8), an ash collecting drawer (19) for collecting dust is arranged in the collection case (8) in a sliding manner, and the ash collecting drawer (19) and the collection case (8) are detachably arranged;
The transmission case (11) lower part is provided with the break-make subassembly, and the break-make subassembly includes:
The chute (21) is arranged at the lower part of the transmission case (11), the chute (21) is arranged in an arc shape and is concentric with the arc bottom surface of the transmission case (11), and the ash discharge passage (18) passes through the chute (21);
the plugging plate (22) is connected in the chute (21) in a sliding way, the ash discharge passage (18) is plugged by the plugging plate (22), and a spring is connected between one side of the plugging plate (22) far away from the smoke inlet pipe (2) and the end part of the chute (21);
The sliding block (23), the sliding block (23) is connected with the top end of the plugging plate (22), the sliding block (23) penetrates out of the arc-shaped bottom surface of the transmission box (11) and is abutted to the lower part of the box plate (13), and a slot (24) for the sliding block (23) to slide is formed in the top end of the sliding groove (21).
2. A high dust and flue gas resistant high efficiency low temperature denitration device according to claim 1, wherein the catalyst (5) comprises a plurality of catalyst plates arranged side by side in the flue gas flow direction, the catalyst plates containing a plurality of catalyst units arranged in an array.
3. The high-dust-resistant flue gas high-efficiency low-temperature denitration device according to claim 1, wherein the splitter plate (4) comprises a plurality of splitter cells arranged in an array, and each splitter cell is arranged in a one-to-one correspondence with the catalyst unit.
4. The high-efficiency low-temperature denitration device for high-dust-resistance flue gas according to claim 1, wherein an electronic lock is arranged on the dust collection drawer (19), an angle sensor is arranged on a hinge shaft of the quantitative dust collection box (12) and the filter plate (7) and is used for detecting the rotation angle of the quantitative dust collection box (12), and when the rotation angle reaches a preset value, the dust collection drawer (19) in the collection box (8) is in a locking state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410389150.XA CN117983051B (en) | 2024-04-02 | 2024-04-02 | High-efficient low temperature denitrification facility of high dust resistant flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410389150.XA CN117983051B (en) | 2024-04-02 | 2024-04-02 | High-efficient low temperature denitrification facility of high dust resistant flue gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117983051A CN117983051A (en) | 2024-05-07 |
| CN117983051B true CN117983051B (en) | 2024-06-04 |
Family
ID=90889577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410389150.XA Active CN117983051B (en) | 2024-04-02 | 2024-04-02 | High-efficient low temperature denitrification facility of high dust resistant flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117983051B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744915A (en) * | 2018-06-12 | 2018-11-06 | 石宏扬 | A kind of industrial smoke treatment process |
| CN111545041A (en) * | 2020-05-19 | 2020-08-18 | 山东华拓节能环保科技有限公司 | High-efficient dry process SOx/NOx control device |
| CN113578042A (en) * | 2021-08-04 | 2021-11-02 | 河南工业职业技术学院 | Multistage ammonia-spraying efficient SCR flue gas denitration system |
| CN117695772A (en) * | 2023-12-11 | 2024-03-15 | 锡林郭勒热电有限责任公司 | Flue gas purifying device |
-
2024
- 2024-04-02 CN CN202410389150.XA patent/CN117983051B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108744915A (en) * | 2018-06-12 | 2018-11-06 | 石宏扬 | A kind of industrial smoke treatment process |
| CN111545041A (en) * | 2020-05-19 | 2020-08-18 | 山东华拓节能环保科技有限公司 | High-efficient dry process SOx/NOx control device |
| CN113578042A (en) * | 2021-08-04 | 2021-11-02 | 河南工业职业技术学院 | Multistage ammonia-spraying efficient SCR flue gas denitration system |
| CN117695772A (en) * | 2023-12-11 | 2024-03-15 | 锡林郭勒热电有限责任公司 | Flue gas purifying device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117983051A (en) | 2024-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6451091B1 (en) | Apparatus and method for emissions control through continuous filtration system | |
| CN201906655U (en) | Wet process-static electricity secondary dedusting and desulphurization device | |
| KR101187926B1 (en) | System for removing viscosity particle and stench | |
| CN110252140A (en) | Low temperature SCR denitration device and technique in a kind of heater for rolling steel flue gas dry desulfurizing | |
| CN108543413A (en) | A kind of high-temperature dust removal denitration integrated device and its application method | |
| CN201320442Y (en) | Flue-gas dust removal and purification device | |
| CN117983051B (en) | High-efficient low temperature denitrification facility of high dust resistant flue gas | |
| CN101664621B (en) | Flue-gas dust removal and purification device | |
| KR20040090182A (en) | Baghouse for simultaneously removing fine particle and nitric oxides to preliminary reduction of dust loading | |
| CN208526288U (en) | Waste lead acid battery crushing section acid fog collection device | |
| CN117599545A (en) | Novel venturi high-efficiency wet dust collector | |
| CN210993694U (en) | A all cigarette device for SOx/NOx control | |
| CN103028299A (en) | Simultaneous complex treatment apparatus for advanced treatment of mixed exhaust gas | |
| CN219984344U (en) | Tail gas treatment sedimentation bin | |
| CN111514720A (en) | Integrative tower of SOx/NOx control dust removal defogging | |
| CN202715332U (en) | Dry-method aftertreatment system | |
| CN212731657U (en) | Desulfurization and denitrification integrated absorption device | |
| CN212881747U (en) | Semi-dry desulfurization tower with activated carbon mixing device | |
| CN214020057U (en) | Modularization SOx/NOx control takes off VOC dust removal integrative system | |
| CN101879405B (en) | Dry-wet integrated desulfurizing dust remover | |
| CN212262843U (en) | A novel chemical machinery equipment for thermal power plant's waste gas SOx/NOx control | |
| KR101231923B1 (en) | Semi-dry flue gas de-sulfurization apparatus and circulating fluidized bed combustion device | |
| CN209354224U (en) | The exhaust emissions filtration treatment device of motor vehicle | |
| CN2505710Y (en) | Double-tube cyclone wet flue gas cleaner | |
| CN202427313U (en) | Smoke humidification composite type dust-removing and synergistic desulfurization and denitration device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |