CN118162028A - Superfine powder ash processing device and preparation technology thereof - Google Patents
Superfine powder ash processing device and preparation technology thereof Download PDFInfo
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- CN118162028A CN118162028A CN202410585506.7A CN202410585506A CN118162028A CN 118162028 A CN118162028 A CN 118162028A CN 202410585506 A CN202410585506 A CN 202410585506A CN 118162028 A CN118162028 A CN 118162028A
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- 239000000843 powder Substances 0.000 title claims abstract description 141
- 238000012545 processing Methods 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title abstract description 5
- 238000005516 engineering process Methods 0.000 title description 2
- 239000002956 ash Substances 0.000 claims abstract description 140
- 238000002156 mixing Methods 0.000 claims abstract description 99
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 238000003756 stirring Methods 0.000 claims abstract description 34
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000002245 particle Substances 0.000 claims abstract description 15
- 239000010881 fly ash Substances 0.000 claims abstract description 14
- 239000008394 flocculating agent Substances 0.000 claims description 59
- 230000009471 action Effects 0.000 claims description 29
- 238000005096 rolling process Methods 0.000 claims description 29
- 238000007599 discharging Methods 0.000 claims description 20
- 238000007790 scraping Methods 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 16
- 230000008569 process Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 claims description 10
- 239000000706 filtrate Substances 0.000 claims description 7
- 238000005054 agglomeration Methods 0.000 claims description 6
- 230000002776 aggregation Effects 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 230000001737 promoting effect Effects 0.000 claims description 5
- 238000012216 screening Methods 0.000 claims description 5
- 239000004111 Potassium silicate Substances 0.000 claims description 3
- 239000004115 Sodium Silicate Substances 0.000 claims description 3
- ANBBXQWFNXMHLD-UHFFFAOYSA-N aluminum;sodium;oxygen(2-) Chemical compound [O-2].[O-2].[Na+].[Al+3] ANBBXQWFNXMHLD-UHFFFAOYSA-N 0.000 claims description 3
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 3
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 3
- 229910052913 potassium silicate Inorganic materials 0.000 claims description 3
- NNHHDJVEYQHLHG-UHFFFAOYSA-N potassium silicate Chemical compound [K+].[K+].[O-][Si]([O-])=O NNHHDJVEYQHLHG-UHFFFAOYSA-N 0.000 claims description 3
- 235000019353 potassium silicate Nutrition 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000004062 sedimentation Methods 0.000 claims description 3
- 229910001388 sodium aluminate Inorganic materials 0.000 claims description 3
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 3
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000010298 pulverizing process Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 13
- 239000012535 impurity Substances 0.000 abstract description 10
- 238000000227 grinding Methods 0.000 description 11
- 239000010426 asphalt Substances 0.000 description 6
- 230000013011 mating Effects 0.000 description 4
- 239000011812 mixed powder Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Processing Of Solid Wastes (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of fly ash processing, in particular to a superfine fly ash processing device and a preparation process thereof, comprising a mounting table, wherein a mixing cylinder is fixedly arranged at the top of the mounting table, a feed pipe and a liquid inlet pipe are fixedly communicated above the side surface of the mixing cylinder, a discharge pipe is fixedly communicated with the bottom of the mixing cylinder, a break-stop valve is arranged on the discharge pipe, a heating ring is fixedly arranged on the mixing cylinder, and a mixing stirring mechanism is connected inside the mixing cylinder; according to the invention, the flocculant is added into the powder ash and the heating reaction is carried out, so that the powder ash and the internal impurities are separated, and the purity and the particle fineness of the powder ash are improved and the processing and using effects of the powder ash after being mixed are improved through the drying, crushing and centrifugal effects.
Description
Technical Field
The invention relates to the technical field of fly ash processing, in particular to a superfine powder ash processing device and a preparation process thereof.
Background
Asphaltenes are used as heavy components in crude oil and undergo further treatment and processing to form bitumen. In order to obtain asphalt powder, asphalt is ground and graded to obtain asphalt powder with different particle sizes.
The invention relates to Chinese patent with publication number CN104525338B, which discloses a superfine fly ash closed-circuit grinding production line and a production process thereof, wherein the invention adopts a closed-circuit grinding system, and the undisturbed fly ash is firstly sent to a superfine powder separator for separation by a chain conveyor and a lifter after being metered by a double-tube screw and a rotor scale; the selected coarse powder is sent into a special mill for superfine fly ash through a chain conveyor for grinding, and then sent into a powder selecting machine again for selecting through a tail grinding hoister after grinding; the fine powder reaching the standard is carried out of the powder separator by gas, enters a pulse bag type dust collector of a gas box for collection, and is sent into a fly ash storage warehouse by an air chute and a lifting machine.
According to the technical scheme, when asphalt powder ash is processed, grinding processing is usually needed to be carried out on the powder ash, so that the fineness of the powder ash can be used for mixing in production processing, partial impurities exist in the ground powder ash, and if the powder ash is directly ground and applied to production processing, the impurities in the powder ash can reduce the purity of the powder ash and influence the effect of a mixed product.
Disclosure of Invention
The invention aims to solve the defects in the technical scheme, and provides a superfine powder ash processing device and a preparation process thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme: the superfine ash processing device comprises a mounting table, wherein a mixing cylinder is fixedly arranged at the top of the mounting table, a feed pipe and a liquid inlet pipe are fixedly communicated with the upper part of the side surface of the mixing cylinder, a discharge pipe is fixedly communicated with the bottom of the mixing cylinder, a break-proof valve is arranged on the discharge pipe, a heating ring is fixedly arranged on the mixing cylinder, and a mixing stirring mechanism is connected inside the mixing cylinder;
The top of the mounting table is provided with an inclined circular tube, a filtrate conveying mechanism is connected between the material discharging tube and the inclined circular tube, a drying mechanism is connected on the inclined circular tube, a pulverizer and a centrifugal machine are fixedly mounted at the top of the mounting table, the feeding end of the pulverizer is positioned below one downward inclined end of the inclined circular tube, the material discharging end of the pulverizer is fixedly communicated with a communicating tube, and one end of the communicating tube is fixedly communicated with the feeding end of the centrifugal machine;
The mixing stirring mechanism comprises a rotating disc, the rotating disc is fixedly connected to the top of the mixing cylinder, a connecting shaft is rotatably connected to the inside of the rotating disc, one end of the connecting shaft penetrates through the mixing cylinder and extends to the inside of the mixing cylinder, a plurality of stirring blades are fixedly connected to the surface of the connecting shaft along the circumferential direction, a first motor is fixedly arranged at the top of the rotating disc, and an output shaft of the first motor is fixedly connected to the top end of the connecting shaft.
Preferably, the inside of mixing drum is provided with the go-between, the go-between with the inner wall of mixing drum is laminated mutually, the go-between is close to offer the feed liquor ring groove on the cambered surface of mixing drum, the feed liquor pipe with the feed liquor ring groove is linked together, fixedly connected with link on the go-between, link fixedly connected with is in on the connecting axle, two hang pipes of circumference fixedly connected with are followed to the bottom of go-between, the style of calligraphy shower nozzle is all installed to the slope end of hang pipe, hang pipe with the feed liquor ring groove is linked together, two hang pipe's slope end is oriented respectively the connecting axle with the inner wall of mixing drum.
Preferably, the filtrate conveying mechanism comprises a conveying shell, the conveying shell is fixedly connected to the top of the mounting table, the material discharging pipe is positioned above the conveying shell, a conveying shaft is rotatably connected to the inside of the conveying shell, a spiral conveying blade is fixedly connected to the conveying shaft, a third motor is fixedly mounted at one end of the conveying shell, an output shaft of the third motor is fixedly connected to one end of the conveying shaft, a mounting groove is formed in the bottom of the conveying shell, a cambered surface filter plate is fixedly connected to the inside of the mounting groove, a material discharging groove is formed in the other end of the conveying shell, a rectangular frame is fixedly connected to the bottom of the conveying shell, is positioned inside one end of the inclined circular pipe, which is inclined upwards, and is positioned below the material discharging groove, two driving shafts are rotatably connected to the inside of the rectangular frame, the surface of the driving shaft is fixedly connected with a rolling roller, the surface of the rolling roller is fixedly connected with a plurality of rolling ratchets along the circumferential direction, the rolling ratchets on the surfaces of the two rolling rollers are arranged in a staggered way, one end of the driving shaft is fixedly connected with a gear, the two gears are meshed with each other, the bottom of the conveying shell is fixedly provided with a fourth motor, the output shaft of the fourth motor is fixedly connected with one end of the driving shaft, both sides of the rectangular frame are provided with movable grooves, the inside of the movable grooves are fixedly connected with vertical round bars, both sides of the inside of the rectangular frame are provided with scraping toothed plates, protruding teeth on one side of each scraping toothed plate are arranged in a staggered way with the rolling ratchets on the surface of the adjacent rolling roller, two connecting plates are fixedly connected on each scraping toothed plate, the connecting plates are respectively located inside the corresponding movable grooves and are slidably inserted on the corresponding vertical round bars, springs are sleeved on the vertical round bars, the springs are fixedly connected between the corresponding connecting plates and the inner top surfaces of the movable grooves, two driving shafts are fixedly connected with cams, one sides of the cams are provided with L-shaped bars, two yielding grooves are formed in one ends of the rectangular frames, and one ends of the L-shaped bars are fixedly connected to the corresponding scraping toothed plates after the corresponding yielding grooves move to the inner parts of the rectangular frames.
Preferably, the drying mechanism comprises an inclined supporting frame, the inclined supporting frame is fixedly connected to the top of the mounting table and located below the inclined circular tube, a mounting frame is fixedly connected to the inclined supporting frame, an air heater is fixedly mounted on the top of the mounting frame, an air outlet end of the air heater is fixedly communicated with an air guide tube, one end of the air guide tube is located inside one end of the inclined circular tube, which is inclined downwards, and a unidirectional rotating mechanism is connected to the inclined circular tube.
Preferably, the unidirectional rotation mechanism includes two contact rings, two equal fixed connection of contact ring is in on the surface of slope pipe, the both sides of contact ring below all are provided with the backing roll, the inside fixedly connected with axis of rotation of backing roll, the axis of rotation all rotates to be connected on the slope support frame, the top fixed mounting of slope support frame has the second motor, the output shaft fixed connection of second motor is in one of them on the one end of axis of rotation, spacing annular has all been seted up at the both ends of contact ring, the top fixedly connected with two U type mounts of slope support frame, the both ends of U type mount are all fixedly connected with arc stopper, the one end of arc stopper is sliding connection respectively in the correspondence inside the spacing annular.
Preferably, a plurality of arc shoveling plates are fixedly connected to the inner wall of the inclined circular tube, and guide inclined planes are formed in one inclined end of the arc shoveling plates and one side close to the rotation direction.
A process for preparing ultrafine fly ash, which comprises the following steps:
Firstly, discharging the powder ash used for processing into a mixing cylinder along a feed pipe, discharging a flocculating agent into the mixing cylinder along a liquid inlet pipe, stirring by the action of a mixing stirring mechanism, generating heat by the operation of a heating ring, conducting heat to the mixing cylinder in a contact manner, enabling the powder ash and the flocculating agent in the mixing cylinder to react, continuing stirring the powder ash and the flocculating agent by the action of the mixing stirring mechanism, promoting the reaction between the powder ash and the flocculating agent, and enabling the powder ash to perform sedimentation agglomeration under the reaction action of the flocculating agent;
Step two, opening a stop valve switch to enable flocculating agent and settled powder ash to be discharged outwards along a discharge pipe, enter the inside of the inclined circular pipe, move along the direction of a feeding end of the pulverizer along the inclined surface inside the inclined circular pipe, and dry the flocculating agent and the settled powder ash in the process of moving inside the inclined circular pipe under the action of a drying mechanism;
thirdly, the dried powder ash enters the inside of a pulverizer to be pulverized and rolled, so that the particle fineness of the powder ash reaches the processing standard, and then enters the inside of a centrifuge along a communicating pipe, and the powder ash is subjected to high-centrifugal separation through the centrifuge, so that the powder ash is subjected to screening with different particle fineness.
Preferably, the flocculant comprises the following raw materials in proportion: 53.8% water, 45% sodium silicate, 0.8% sodium aluminate, 0.3% potassium silicate and 0.1% ferric sulfate.
Compared with the prior art, the invention has the following beneficial effects:
1. The flocculant is added into the powder ash and the heating reaction is carried out, so that the powder ash and the internal impurities are separated, the purity and the particle fineness of the powder ash are improved through drying, crushing and centrifugal action, and the processing and using effects of the mixed powder ash are improved.
2. The inclined ends of the two inclined pipes face the connecting shaft and the inner wall of the mixing cylinder respectively, so that in the process of rotation of the inclined pipes, the flocculating agent sprayed out of the inclined pipes inclined to the inner wall of the mixing cylinder can flush the powder ash adhered on the inner wall of the mixing cylinder, the flocculating agent sprayed out of the inclined pipes inclined to the connecting shaft can wet and fall the powder ash floating in the mixing cylinder, the mixing effect of the flocculating agent and the powder ash is improved, and the spraying range of the flocculating agent is increased through a straight nozzle.
3. The inclined circular tube rotates under the action of the unidirectional rotating mechanism, and moves towards one end of the inclined circular tube which is inclined downwards along with the action of gravity on the powder ash which rotates on the inclined circular tube, the movement directions of the heating air source and the powder ash are opposite, the heating air source and the powder ash are in countercurrent contact, the powder ash is contacted and heated, so that the powder ash can be dried, and the powder ash is dried in the downward conveying process.
4. The backing roll drives the synchronous rotation of contact ring through contact friction when supporting the contact ring to through the cooperation rotation of other backing rolls, make the slope pipe carry out unidirectional rotation, it is spacing to slide spacing to spacing annular through the arc stopper at U type mount both ends, prevent that the slope pipe from rotating and breaking away from, improve the stability of slope pipe rotation in-process.
5. When the powder ash moves downwards along the inner part of the inclined circular tube, the powder ash is continuously shoveled up and then scattered down through a plurality of arc shoveling plates in the inclined circular tube, so that the contact area between the powder ash and a heating air source is increased, the drying rate of the powder ash is improved, and the powder ash is promoted to advance.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged schematic view of the structure A in FIG. 1 according to the present invention;
FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1 according to the present invention;
FIG. 4 is a schematic view of the mating structure of the mixing cylinder, stirring blade and connecting ring of the present invention (the mixing cylinder is partially cut away);
FIG. 5 is an enlarged schematic view of the structure of FIG. 4 at C in accordance with the present invention;
FIG. 6 is a schematic view of the combination structure of the inclined round tube, the inclined support frame and the air heater of the invention;
FIG. 7 is an enlarged schematic view of the structure at D in FIG. 6 according to the present invention;
FIG. 8 is a schematic diagram of the mating structure of the transport housing and rectangular frame of the present invention;
FIG. 9 is a schematic view of a first mating structure of a rectangular frame, a grinding roll and a scraping toothed plate of the present invention;
FIG. 10 is an enlarged schematic view of the structure of FIG. 9 at E in accordance with the present invention;
Fig. 11 is a schematic view of a second mating structure of the rectangular frame, the grinding roll and the scraping toothed plate of the present invention.
In the figure: 1. a mounting table; 2. a mixing cylinder; 3. a feed pipe; 4. a liquid inlet pipe; 5. a discharge pipe; 6. a stop valve; 7. a heating ring; 8. tilting the round tube; 9. a pulverizer; 10. a centrifuge; 11. a communicating pipe; 12. a rotating disc; 13. a connecting shaft; 14. stirring the leaves; 15. a first motor; 16. a connecting ring; 17. a liquid inlet ring groove; 18. a connecting frame; 19. an inclined tube; 20. a straight-line spray head; 21. a tilting support; 22. a mounting frame; 23. an air heater; 24. an air guide pipe; 25. a contact ring; 26. a support roller; 27. a rotating shaft; 28. a second motor; 29. a limit ring groove; 30. a U-shaped fixing frame; 31. an arc-shaped limiting block; 32. an arc-shaped shoveling plate; 33. a conveying housing; 34. a conveying shaft; 35. spiral conveying leaves; 36. a third motor; 37. a mounting groove; 38. a cambered surface filter plate; 39. a discharge chute; 40. a rectangular frame; 41. a drive shaft; 42. a roller; 43. rolling the ratchet teeth; 44. a gear; 45. a fourth motor; 46. a movable groove; 47. a vertical round bar; 48. scraping toothed plates; 49. a connecting plate; 50. a spring; 51. a cam; 52. an L-shaped rod; 53. and (5) giving way.
Detailed Description
The following description is presented to enable one of ordinary skill in the art to make and use the invention. The preferred embodiments in the following description are by way of example only and other obvious variations will occur to those skilled in the art.
The superfine ash processing device as shown in fig. 1 to 11 comprises a mounting table 1, wherein a mixing cylinder 2 is fixedly arranged at the top of the mounting table 1, a feed pipe 3 (shown in fig. 2) and a liquid inlet pipe 4 are fixedly communicated above the side surface of the mixing cylinder 2, a discharge pipe 5 is fixedly communicated with the bottom of the mixing cylinder 2, a break-stop valve 6 is arranged on the discharge pipe 5, a heating ring 7 is fixedly arranged on the mixing cylinder 2, and a mixing stirring mechanism is connected inside the mixing cylinder 2;
The top of the mounting table 1 is provided with an inclined circular tube 8, a filtrate conveying mechanism is connected between the discharge tube 5 and the inclined circular tube 8, a drying mechanism is connected on the inclined circular tube 8, a pulverizer 9 and a centrifugal machine 10 are fixedly mounted on the top of the mounting table 1, the feeding end of the pulverizer 9 is positioned below one downward inclined end of the inclined circular tube 8, the discharge end of the pulverizer 9 is fixedly communicated with a communicating tube 11, and one end of the communicating tube 11 is fixedly communicated with the feeding end of the centrifugal machine 10; when the asphalt powder ash is processed, the powder ash is usually required to be ground in the prior art, so that the fineness of the powder ash can be used for mixing in production and processing, and if part of impurities exist in the ground powder ash, the powder ash is directly ground and applied to production and processing, the impurities in the powder ash can reduce the purity of the powder ash and influence the effect of the mixed product; ash powder ash powder ash the technical scheme of the ash powder ash can solve the above problems, and the concrete working mode is as follows: discharging the powder ash used for processing into the mixing cylinder 2 along the feeding pipe 3, discharging the flocculating agent into the mixing cylinder 2 along the liquid inlet pipe 4, stirring by the action of a mixing stirring mechanism to fully mix the powder ash and the flocculating agent, generating heat by the operation of the heating ring 7, contacting the mixing cylinder 2 to conduct heat, so that the powder ash and the flocculating agent in the mixing cylinder 2 react, continuously stirring the powder ash and the flocculating agent by the action of the mixing stirring mechanism, enabling the powder ash and the flocculating agent to be always in a flowing state to ensure uniform heating, promoting the reaction between the powder ash and the flocculating agent, settling and agglomerating the powder ash under the reaction action of the flocculating agent after the powder ash and the flocculating agent fully react, mixing and dissolving impurities in the powder ash into the flocculating agent to separate from the powder ash, then opening a stop valve 6 to discharge the flocculating agent and the settled powder ash outwards along a discharge pipe 5, enabling the flocculating agent and the settled powder ash to enter the inside of an inclined circular pipe 8 through the action of a filtrate conveying mechanism, enabling the flocculating agent and the settled powder ash to move along the direction of a feeding end of a pulverizer 9 along the inclined surface inside the inclined circular pipe 8, drying the flocculating agent and the settled powder ash in the moving process of the inside of the inclined circular pipe 8 through the action of a drying mechanism, drying and evaporating the flocculating agent, keeping the powder ash dry, enabling the dried powder ash to enter the inside of the pulverizer 9 to crush and roll, enabling the particle fineness of the powder ash to reach the processing standard, enabling the powder ash to enter the inside of a centrifuge 10 along a communicating pipe 11, performing high-degree centrifugal separation through the centrifuge 10, enabling the powder ash to be subjected to screening of particles with different fineness, enabling the powder ash to be separated from internal impurities through adding the flocculating agent into the powder ash and performing heating reaction, and through the drying, crushing and centrifugation, the purity and the particle fineness of the powder ash are improved, and the processing and using effects of the mixed powder ash are improved.
The mixing stirring mechanism comprises a rotating disc 12, the rotating disc 12 is fixedly connected to the top of the mixing cylinder 2, a connecting shaft 13 is rotatably connected to the inside of the rotating disc 12, one end of the connecting shaft 13 penetrates through the mixing cylinder 2 and extends into the mixing cylinder 2, a plurality of stirring blades 14 are fixedly connected to the surface of the connecting shaft 13 along the circumferential direction, a first motor 15 is fixedly arranged at the top of the rotating disc 12, and an output shaft of the first motor 15 is fixedly connected to the top end of the connecting shaft 13; during operation, the output shaft of the first motor 15 rotates unidirectionally, so that the connecting shaft 13 is driven to synchronously rotate along the rotating joint of the rotating disc 12, and the stirring blades 14 inside the mixing cylinder 2 are fixedly connected to the surface of the connecting shaft 13 and rotate along with the connecting shaft 13, so that the powder ash and the flocculating agent inside the mixing cylinder 2 are mixed and stirred.
As a further embodiment of the invention, a connecting ring 16 is arranged in the mixing cylinder 2, the connecting ring 16 is attached to the inner wall of the mixing cylinder 2, a liquid inlet ring groove 17 is formed on the cambered surface of the connecting ring 16, which is close to the mixing cylinder 2, the liquid inlet pipe 4 is communicated with the liquid inlet ring groove 17, a connecting frame 18 is fixedly connected to the connecting ring 16, the connecting frame 18 is fixedly connected to the connecting shaft 13, two inclined pipes 19 are fixedly connected to the bottom of the connecting ring 16 along the circumferential direction, the inclined ends of the inclined pipes 19 are provided with a straight-line spray head 20, the inclined pipes 19 are communicated with the liquid inlet ring groove 17, and the inclined ends of the two inclined pipes 19 face the connecting shaft 13 and the inner wall of the mixing cylinder 2 respectively; when the flocculant is infused into the mixing cylinder 2 along the liquid inlet pipe 4, the flocculant enters the liquid inlet ring groove 17 along the communication part of the liquid inlet pipe 4 and the mixing cylinder 2, and is sprayed out along the two inclined pipes 19 at the bottom of the connecting ring 16, the connecting frame 18 is driven to synchronously rotate through the rotation of the connecting shaft 13, so that the connecting ring 16 drives the two inclined pipes 19 at the bottom to synchronously rotate, the flocculant is sprayed out along the inclined pipes 19, the inclined ends of the two inclined pipes 19 face the connecting shaft 13 and the inner wall of the mixing cylinder 2 respectively, and therefore in the rotating process of the inclined pipes 19, the flocculant sprayed out to the inclined pipes 19 inclined to the inner wall of the mixing cylinder 2 can flush the dust adhered to the inner wall of the mixing cylinder 2, and the flocculant sprayed out to the inclined pipes 19 inclined to the connecting shaft 13 can wet and drop the dust floating in the mixing cylinder 2, so that the mixing effect of the flocculant and the dust is improved, and the spraying range of the flocculant is increased through the straight nozzle 20.
As a further embodiment of the invention, the filtrate conveying mechanism comprises a conveying shell 33, the conveying shell 33 is fixedly connected to the top of the mounting table 1, the discharge pipe 5 is positioned above the conveying shell 33, a conveying shaft 34 is rotatably connected to the inside of the conveying shell 33, a spiral conveying blade 35 is fixedly connected to the conveying shaft 34, one end of the conveying shell 33 is fixedly provided with a third motor 36, an output shaft of the third motor 36 is fixedly connected to one end of the conveying shaft 34, the bottom of the conveying shell 33 is provided with a mounting groove 37, the inside of the mounting groove 37 is fixedly connected with a cambered surface filter plate 38, the other end of the conveying shell 33 is provided with a discharge groove 39, the bottom of the conveying shell 33 is fixedly connected with a rectangular frame 40, the rectangular frame 40 is positioned in one end of the inclined round tube 8 which is inclined upwards and below the discharge groove 39, two driving shafts 41 are rotatably connected in the rectangular frame 40, the surfaces of the driving shafts 41 are fixedly connected with rolling rollers 42, the surfaces of the rolling rollers 42 are fixedly connected with a plurality of rolling ratchets 43 along the circumferential direction, the rolling ratchets 43 on the surfaces of the two rolling rollers 42 are arranged in a staggered manner, one end of the driving shafts 41 is fixedly connected with gears 44, the two gears 44 are meshed with each other, a fourth motor 45 is fixedly arranged at the bottom of the conveying shell 33, an output shaft of the fourth motor 45 is fixedly connected with one end of one driving shaft 41, the two sides of the rectangular frame 40 are provided with movable grooves 46, the inside of the movable grooves 46 is fixedly connected with vertical round bars 47, the two sides of the inside of the rectangular frame 40 are provided with scraping toothed plates 48, protruding teeth on one side of each scraping toothed plate 48 are staggered with rolling ratchets 43 on the surfaces of adjacent rolling rollers 42, two connecting plates 49 are fixedly connected to each scraping toothed plate 48, each connecting plate 49 is respectively positioned in the corresponding movable groove 46 and is slidably inserted on the corresponding vertical round bar 47, a spring 50 is sleeved on each vertical round bar 47, the spring 50 is fixedly connected between the corresponding connecting plate 49 and the inner top surface of the corresponding movable groove 46, the other ends of the two driving shafts 41 are fixedly connected with cams 51, one side of the cam 51 is provided with an L-shaped rod 52, one end of the rectangular frame 40 is provided with two abdicating grooves 53, and one end of the L-shaped rod 52 moves to the inside of the rectangular frame 40 along the corresponding abdicating groove 53 and is fixedly connected to the corresponding scraping toothed plate 48; during operation, the powder ash reacts through the flocculating agent to generate agglomeration phenomenon and form a block shape, gaps among molecules are reduced, part of flocculating agent is filled in the block shape powder ash, the flocculating agent in the block shape powder ash is difficult to dry and evaporate in the drying process, so that the drying effect of the powder ash is reduced, the flocculating agent and the powder ash after reaction agglomeration are discharged along the discharge pipe 5 and fall into the conveying shell 33, the output shaft of the third motor 36 rotates to drive the spiral conveying blade 35 to synchronously rotate, the flocculating agent and the powder ash after reaction agglomeration are spirally conveyed along the conveying shell 33 to the direction of the discharge groove 39 through the spiral conveying effect of the spiral conveying blade 35, the reacted flocculant is filtered and discharged downwards through the cambered surface filter plate 38 in the conveying process, so that a large amount of flocculant is reduced to enter the inclined circular tube 8 and influence the drying effect of the powder ash, the agglomerated powder ash is discharged along the discharge groove 39 and falls into the rectangular frame 40, the output shaft of the fourth motor 45 drives the corresponding driving shafts 41 to synchronously rotate, the two driving shafts 41 are rotated in opposite directions under the meshing action of the two gears 44, the two rolling rollers 42 are rotated in opposite directions, the rolling ratchet teeth 43 on the surface of the rolling rollers 42 stir and squeeze the agglomerated powder ash between the two rolling rollers 42, the agglomerated powder ash passes through between the two rolling rollers 42 and is extruded and cracked, so that the lump dust is crushed and the flocculant inside is exposed, the drying effect of the dust is improved, in the process of rotating the grinding roller 42, the dust adhered to the grinding roller 42 and the grinding ratchet 43 is scraped by the scraping toothed plates 48 at the two sides, the driving shaft 41 rotates in the rotating process to drive the cam 51, the convex end of the cam 51 presses one end of the L-shaped rod 52 in the rotating process to enable the L-shaped rod 52 to move upwards along the yielding groove 53, so that the scraping toothed plates 48 synchronously move upwards and drive the connecting plate 49 to move upwards along the sliding insertion positions of the movable groove 46 and the vertical round rod 47 and compress the spring 50 to generate compression deformation, when the protruding end of the cam 51 drives the L-shaped rod 52 to move upwards and rotate and separate from the surface of the L-shaped rod 52, the elastic stretching action of the spring 50 presses the connecting plate 49 and enables the connecting plate 49 to return to the initial position, so that the scraping toothed plate 48 continuously performs reciprocating vibration in the vertical direction, dust scraped on the scraping toothed plate 48 falls into the inclined circular tube 8 under the vibration action, and loss in the dust processing process is reduced.
As a further embodiment of the invention, the drying mechanism comprises an inclined support frame 21, wherein the inclined support frame 21 is fixedly connected to the top of the mounting table 1 and positioned below the inclined circular tube 8, a mounting frame 22 is fixedly connected to the inclined support frame 21, an air heater 23 is fixedly arranged on the top of the mounting frame 22, the air outlet end of the air heater 23 is fixedly communicated with an air guide tube 24, one end of the air guide tube 24 is positioned in the downward inclined end of the inclined circular tube 8, and a unidirectional rotation mechanism is connected to the inclined circular tube 8; during operation, the air outlet end of the air heater 23 is used for introducing a heating air source into the downward inclined end of the inclined circular tube 8 along one end of the air guide tube 24, so that the heating air source moves towards the other end along the inside of the inclined circular tube 8, the inclined circular tube 8 rotates under the action of the unidirectional rotating mechanism, and along with the rotation of the inclined circular tube 8, the powder ash moves towards the downward inclined end of the inclined circular tube 8 under the action of gravity, the movement directions of the heating air source and the powder ash are opposite, the heating air source and the powder ash are in countercurrent contact with each other, and the powder ash is contacted and heated, so that the powder ash is dried, and the powder ash is dried in the downward conveying process.
As a further embodiment of the present invention, the unidirectional rotation mechanism includes two contact rings 25, the two contact rings 25 are fixedly connected to the surface of the inclined circular tube 8, the two sides below the contact rings 25 are respectively provided with a supporting roller 26, the inside of the supporting roller 26 is fixedly connected with a rotation shaft 27, the rotation shaft 27 is respectively and rotatably connected to the inclined supporting frame 21, the top of the inclined supporting frame 21 is fixedly provided with a second motor 28 (as shown in fig. 6), the output shaft of the second motor 28 is fixedly connected to one end of one rotation shaft 27, the two ends of the contact rings 25 are respectively provided with a limiting ring groove 29 (as shown in fig. 7), the top of the inclined supporting frame 21 is fixedly connected with two U-shaped fixing frames 30, the two ends of the U-shaped fixing frames 30 are respectively and slidably connected with arc limiting blocks 31, and one ends of the arc limiting blocks 31 are respectively and slidably connected in the corresponding limiting ring grooves 29; during operation, the bottom of the contact ring 25 is supported through the support roller 26, and the corresponding rotating shaft 27 is driven to rotate through the rotation of the output shaft of the second motor 28, so that the corresponding support roller 26 rotates, the support roller 26 drives the contact ring 25 to synchronously rotate through contact friction when supporting the contact ring 25, and the inclined circular tube 8 rotates in a unidirectional manner through the matching rotation of other support rollers 26, the limiting ring grooves 29 are limited in a sliding manner through the arc limiting blocks 31 at the two ends of the U-shaped fixing frame 30, the inclined circular tube 8 is prevented from rotating and separating, and the stability of the inclined circular tube 8 in the rotating process is improved.
As a further embodiment of the present invention, a plurality of arc-shaped shoveling plates 32 (as shown in fig. 3 and 7) are fixedly connected to the inner wall of the inclined circular tube 8, and a guide inclined plane is formed at one inclined end of the arc-shaped shoveling plates 32 and one side close to the rotation direction; when the dust moves downwards along the inside of the inclined circular tube 8 in operation, the dust is continuously lifted up and then scattered down through the plurality of arc-shaped shoveling plates 32 in the inclined circular tube 8, so that the contact area between the dust and a heating air source is increased, the drying rate of the dust is improved, and the dust is promoted to advance.
A process for preparing ultrafine fly ash, which comprises the following steps:
Firstly, discharging the powder ash used for processing into a mixing cylinder 2 along a feed pipe 3, discharging a flocculating agent into the mixing cylinder 2 along a liquid inlet pipe 4, stirring by the action of a mixing stirring mechanism, generating heat by the operation of a heating ring 7, performing contact heat conduction on the mixing cylinder 2, enabling the powder ash and the flocculating agent in the mixing cylinder 2 to react, continuing stirring the powder ash and the flocculating agent by the action of the mixing stirring mechanism, promoting the reaction between the powder ash and the flocculating agent, and enabling the powder ash to perform sedimentation agglomeration under the reaction action of the flocculating agent;
Step two, opening a stop valve 6 to open and close so that the flocculating agent and the settled powder ash are discharged outwards along a discharge pipe 5, enter into the inside of the inclined circular pipe 8, move along the direction of the inclined surface of the inside of the inclined circular pipe 8 towards the feeding end of the crusher 9, and dry in the process of moving the flocculating agent and the settled powder ash inside the inclined circular pipe 8 under the action of a drying mechanism;
Thirdly, the dried powder ash enters the inside of the pulverizer 9 for pulverizing and rolling, so that the particle fineness of the powder ash reaches the processing standard, and then enters the inside of the centrifuge 10 along the communicating pipe 11, and the powder ash is subjected to high-degree centrifugal separation through the centrifuge 10, so that the powder ash is subjected to screening with different particle fineness.
As a further embodiment of the invention, the flocculant comprises the following raw materials in proportion: 53.8% water, 45% sodium silicate, 0.8% sodium aluminate, 0.3% potassium silicate and 0.1% ferric sulfate.
The working principle of the invention is as follows:
Discharging the powder ash used for processing into the mixing cylinder 2 along the feed pipe 3, discharging the flocculating agent into the mixing cylinder 2 along the liquid inlet pipe 4, stirring by the action of a mixing stirring mechanism to fully mix the powder ash and the flocculating agent, generating heat by the operation of the heating ring 7, contacting the mixing cylinder 2 to conduct heat, thereby reacting the powder ash and the flocculating agent in the mixing cylinder 2, continuously stirring the powder ash and the flocculating agent by the action of the mixing stirring mechanism, enabling the powder ash and the flocculating agent to be always in a flowing state to ensure uniform heating, promoting the reaction between the powder ash and the flocculating agent, settling and agglomerating the powder ash under the reaction action of the flocculating agent after the powder ash and the flocculating agent are fully reacted, mixing and dissolving impurities in the flocculating agent to separate from the powder ash, opening the stop valve 6 to switch, the flocculating agent and the settled powder ash are discharged outwards along the discharging pipe 5 and enter the inside of the inclined circular pipe 8, and move along the direction of the feeding end of the crusher 9 along the inclined surface of the inside of the inclined circular pipe 8, the flocculating agent and the settled powder ash are dried in the process of moving inside the inclined circular pipe 8 by the action of the drying mechanism, the flocculating agent is dried and evaporated, so that the powder ash is kept dry, the dried powder ash enters the inside of the crusher 9 to be crushed and rolled, the particle fineness of the powder ash reaches the processing standard, then enters the inside of the centrifuge 10 along the communicating pipe 11, is subjected to high-degree centrifugal separation by the centrifuge 10, so that the powder ash is subjected to screening with different particle fineness, the powder ash is separated from internal impurities by adding the flocculating agent into the powder ash and carrying out heating reaction, and the powder ash is crushed by drying and centrifuging, the purity and the particle fineness of the powder ash are improved, and the processing and using effects of the mixed powder ash are improved.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the foregoing embodiments, but rather, the foregoing embodiments and description illustrate the principles of the invention, and that various changes and modifications may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims and their equivalents.
Claims (8)
1. The utility model provides a superfine powder ash processing device, includes mount table (1), its characterized in that, the top fixed mounting of mount table (1) has mixing drum (2), the top of mixing drum (2) side is fixed to be linked together has inlet pipe (3) and feed liquor pipe (4), the bottom fixed intercommunication of mixing drum (2) has row material pipe (5), install stop valve (6) on row material pipe (5), fixed mounting has heating ring (7) on mixing drum (2), mixing drum (2) internally connected with mixing stirring mechanism;
The device is characterized in that an inclined circular tube (8) is arranged at the top of the mounting table (1), a filtrate conveying mechanism is connected between the material discharging tube (5) and the inclined circular tube (8), a drying mechanism is connected to the inclined circular tube (8), a pulverizer (9) and a centrifugal machine (10) are fixedly arranged at the top of the mounting table (1), a feeding end of the pulverizer (9) is located below one downward inclined end of the inclined circular tube (8), a communicating tube (11) is fixedly communicated with a discharging end of the pulverizer (9), and one end of the communicating tube (11) is fixedly communicated with a feeding end of the centrifugal machine (10);
The mixing stirring mechanism comprises a rotating disc (12), the rotating disc (12) is fixedly connected to the top of the mixing cylinder (2), a connecting shaft (13) is rotatably connected to the inside of the rotating disc (12), one end of the connecting shaft (13) penetrates through the mixing cylinder (2) and extends to the inside of the mixing cylinder (2), a plurality of stirring blades (14) are fixedly connected to the surface of the connecting shaft (13) along the circumferential direction, a first motor (15) is fixedly arranged at the top of the rotating disc (12), and an output shaft of the first motor (15) is fixedly connected to the top of the connecting shaft (13).
2. The superfine powder ash processing device according to claim 1, characterized in that a connecting ring (16) is arranged in the mixing cylinder (2), the connecting ring (16) is attached to the inner wall of the mixing cylinder (2), a liquid inlet ring groove (17) is formed in the arc surface of the connecting ring (16) close to the mixing cylinder (2), the liquid inlet pipe (4) is communicated with the liquid inlet ring groove (17), a connecting frame (18) is fixedly connected to the connecting ring (16), the connecting frame (18) is fixedly connected to the connecting shaft (13), two inclined pipes (19) are fixedly connected to the bottom of the connecting ring (16) along the circumferential direction, a straight-line spray head (20) is arranged at the inclined ends of the inclined pipes (19), the inclined pipes (19) are communicated with the liquid inlet ring groove (17), and the inclined ends of the two inclined pipes (19) face the connecting shaft (13) and the inner wall of the mixing cylinder (2) respectively.
3. The device for processing ultrafine fly ash according to claim 1, wherein the filtrate conveying mechanism comprises a conveying shell (33), the conveying shell (33) is fixedly connected to the top of the mounting table (1), the material discharging pipe (5) is located above the conveying shell (33), a conveying shaft (34) is rotatably connected to the inside of the conveying shell (33), a spiral conveying blade (35) is fixedly connected to the conveying shaft (34), a third motor (36) is fixedly installed at one end of the conveying shell (33), an output shaft of the third motor (36) is fixedly connected to one end of the conveying shaft (34), a mounting groove (37) is formed in the bottom of the conveying shell (33), a cambered surface filter plate (38) is fixedly connected to the inside of the mounting groove (37), a material discharging groove (39) is formed in the other end of the conveying shell (33), a rectangular frame (40) is located inside of the inclined round pipe (8) and is located below the rectangular frame (39), and two rolling rolls (41) are fixedly connected to the surfaces of the driving shaft (41), the surface of the rolling roller (42) is fixedly connected with a plurality of rolling ratchets (43) along the circumferential direction, the rolling ratchets (43) on the surface of the two rolling rollers (42) are arranged in a staggered mode, one end of the driving shaft (41) is fixedly connected with a gear (44), the two gears (44) are meshed with each other, a fourth motor (45) is fixedly arranged at the bottom of the conveying shell (33), an output shaft of the fourth motor (45) is fixedly connected to one end of one driving shaft (41), movable grooves (46) are formed in two sides of the rectangular frame (40), vertical round rods (47) are fixedly connected to the inner parts of the movable grooves (46), scraping toothed plates (48) are arranged in two sides of the inner parts of the rectangular frame (40), protruding teeth on one side of each scraping toothed plate (48) are arranged in a staggered mode with the adjacent rolling ratchets (43) on the surface of the rolling roller (42), two connecting plates (49) are fixedly connected to each other, the connecting plates (49) are respectively arranged on the corresponding movable grooves (46) and are correspondingly provided with the corresponding movable springs (50) on the upper surfaces of the movable grooves (50), two the other end of drive shaft (41) is all fixedly connected with cam (51), one side of cam (51) all is provided with L type pole (52), two groove (53) of stepping down have been seted up to the one end of rectangular frame (40), the one end of L type pole (52) all is followed corresponding step down groove (53) and is moved to the inside back fixed connection of rectangular frame (40) is on scraping material pinion rack (48) that corresponds.
4. The device for processing ultrafine fly ash according to claim 1, wherein the drying mechanism comprises an inclined supporting frame (21), the inclined supporting frame (21) is fixedly connected to the top of the mounting table (1) and located below the inclined circular tube (8), a mounting frame (22) is fixedly connected to the inclined supporting frame (21), a hot air blower (23) is fixedly installed on the top of the mounting frame (22), an air outlet end of the hot air blower (23) is fixedly communicated with an air guide tube (24), one end of the air guide tube (24) is located inside one end of the inclined circular tube (8) which is inclined downwards, and a unidirectional rotating mechanism is connected to the inclined circular tube (8).
5. The device for processing ultrafine dust according to claim 4, wherein the unidirectional rotation mechanism comprises two contact rings (25), the two contact rings (25) are fixedly connected to the surface of the inclined circular tube (8), supporting rollers (26) are arranged on two sides below the contact rings (25), a rotation shaft (27) is fixedly connected to the inside of each supporting roller (26), the rotation shaft (27) is rotatably connected to the inclined supporting frame (21), a second motor (28) is fixedly arranged at the top of each inclined supporting frame (21), an output shaft of the second motor (28) is fixedly connected to one end of one rotation shaft (27), limiting ring grooves (29) are formed in two ends of each contact ring (25), two U-shaped fixing frames (30) are fixedly connected to the top of each inclined supporting frame (21), arc limiting blocks (31) are fixedly connected to two ends of each U-shaped fixing frame (30), and one ends of each arc limiting block (31) are respectively and slidably connected to the corresponding limiting ring grooves (29).
6. The device for processing ultrafine dust according to claim 4, wherein a plurality of arc shovels (32) are fixedly connected to the inner wall of the inclined circular tube (8), and guide inclined planes are formed at one end of the arc shovels (32) inclined upwards and at one side close to the rotation direction.
7. A process for preparing fly ash, which is suitable for a fly ash processing device according to any one of claims 1 to 6, characterized in that the process comprises the following steps:
Firstly, discharging the powder ash used for processing into a mixing cylinder (2) along a feed pipe (3), discharging a flocculating agent into the mixing cylinder (2) along a liquid inlet pipe (4), stirring by the action of a mixing stirring mechanism, generating heat by the operation of a heating ring (7), carrying out contact heat conduction on the mixing cylinder (2), enabling the powder ash and the flocculating agent in the mixing cylinder (2) to react, continuing stirring the powder ash and the flocculating agent by the action of the mixing stirring mechanism, promoting the reaction between the powder ash and the flocculating agent, and enabling the powder ash to carry out sedimentation agglomeration under the reaction action of the flocculating agent;
Opening a stop valve (6) to enable flocculating agent and settled powder ash to be discharged outwards along a discharge pipe (5), enter the inside of an inclined circular pipe (8), move along the direction of the inclined surface inside the inclined circular pipe (8) towards the feeding end of a pulverizer (9), and dry the flocculating agent and the settled powder ash in the process of moving inside the inclined circular pipe (8) under the action of a drying mechanism;
Thirdly, the dried powder ash enters the inside of a pulverizer (9) for pulverizing and rolling, so that the particle fineness of the powder ash reaches the processing standard, then enters the inside of a centrifuge (10) along a communicating pipe (11), and is subjected to high-centrifugal separation through the centrifuge (10), so that the powder ash is subjected to screening with different particle fineness.
8. The process for preparing ultrafine fly ash according to claim 7, wherein the flocculant comprises the following raw materials in proportion: 53.8% water, 45% sodium silicate, 0.8% sodium aluminate, 0.3% potassium silicate and 0.1% ferric sulfate.
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| CN202410585506.7A CN118162028B (en) | 2024-05-13 | 2024-05-13 | Superfine powder ash processing device and preparation technology thereof |
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| US20170216791A1 (en) * | 2014-07-31 | 2017-08-03 | Dow Global Technologies Llc | In-line dynamic mixing apparatus for flocculating and dewatering oil sands fine tailings |
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