CN116983687A - Production equipment and process of polycarboxylate superplasticizer - Google Patents
Production equipment and process of polycarboxylate superplasticizer Download PDFInfo
- Publication number
- CN116983687A CN116983687A CN202311223026.8A CN202311223026A CN116983687A CN 116983687 A CN116983687 A CN 116983687A CN 202311223026 A CN202311223026 A CN 202311223026A CN 116983687 A CN116983687 A CN 116983687A
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- Prior art keywords
- inner cylinder
- polycarboxylate water
- water reducer
- cylinder
- fixedly connected
- Prior art date
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- 229920005646 polycarboxylate Polymers 0.000 title claims abstract description 111
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 239000008030 superplasticizer Substances 0.000 title claims description 14
- 238000000034 method Methods 0.000 title abstract description 4
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 105
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 238000001035 drying Methods 0.000 claims abstract description 38
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 239000007921 spray Substances 0.000 claims abstract description 12
- 238000007790 scraping Methods 0.000 claims description 46
- 239000000463 material Substances 0.000 claims description 28
- 238000005096 rolling process Methods 0.000 claims description 23
- 239000007788 liquid Substances 0.000 claims description 21
- 238000010408 sweeping Methods 0.000 claims description 10
- 238000000889 atomisation Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- 239000013049 sediment Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002253 acid Substances 0.000 description 8
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000003749 cleanliness Effects 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/24—Evaporating by bringing a thin layer of the liquid into contact with a heated surface to obtain dry solids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
- B01D1/223—In rotating vessels; vessels with movable parts containing a rotor
- B01D1/227—In rotating vessels; vessels with movable parts containing a rotor with brushes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/22—Evaporating by bringing a thin layer of the liquid into contact with a heated surface
- B01D1/222—In rotating vessels; vessels with movable parts
- B01D1/228—In rotating vessels; vessels with movable parts horizontally placed cylindrical container or drum
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the field of polycarboxylate water reducer production, in particular to production equipment and a process of a polycarboxylate water reducer, wherein the production equipment of the polycarboxylate water reducer comprises an outer cylinder and an inner cylinder matched with the inner cylinder; the two ends of the outer cylinder are fixedly connected with connecting cylinders, the ends of the connecting cylinders are fixedly connected with first belt pulleys, and the inner cylinder is internally provided with a heating unit; the pipe body is provided with a first spray head which is obliquely directed to the inner side wall of the outer cylinder, and the end part of the pipe body rotates and penetrates through the connecting cylinder and the first belt pulley; the atomized polycarboxylate water reducer is sprayed on the surface of the inner cylinder and is attached to the surface of the inner cylinder; the inner tube sustainability axial pivoted flame sustains the heating simultaneously for the position temperature relative with atomizer on the inner tube is in a comparatively even state, reduces the position temperature variation range of dry polycarboxylate water reducing agent on the inner tube, thereby can stably control and dry the effect to the polycarboxylate water reducing agent after atomizing, guarantees polycarboxylate water reducing agent drying quality.
Description
Technical Field
The invention relates to the field of production of polycarboxylate superplasticizers, in particular to production equipment and a production process of a polycarboxylate superplasticizer.
Background
The polycarboxylate water reducer is a high-performance water reducer, and is a cement dispersant in the application of cement concrete. The method is widely applied to projects such as highways, bridges, dams, tunnels, high-rise buildings and the like; after the polycarboxylate water reducer is produced, the polycarboxylate water reducer needs to be dried to be powdery, so that the polycarboxylate water reducer is convenient to transport.
The existing drying equipment generally uses a drying disc, the temperature of the drying disc is increased to 160-200 ℃, and a polycarboxylate water reducer is atomized and sprayed on the lower surface of the drying disc, meanwhile, a scraping plate rotating around the axis of the drying disc is arranged, and the polycarboxylate water reducer is atomized, sprayed, dried and condensed on the lower surface of the drying disc, and meanwhile, the dried polycarboxylate water reducer is scraped by the scraping plate; this way the drying tray is in a state of continuous heating as a whole.
The temperature of the drying disc is affected by the heating weather, and the temperature of the drying disc is affected by the atomized polycarboxylic acid water reducing agent, so that the local temperature on the drying disc is lower or higher, the drying effect is poor, and the temperature is higher, so that the dried polycarboxylic acid water reducing agent is easy to denature.
Therefore, aiming at the problems, a production device and a production process of the polycarboxylate superplasticizer are provided.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to production equipment of a polycarboxylate water reducer, which comprises an outer cylinder and an inner cylinder matched with the inner cylinder; the two ends of the outer cylinder are fixedly connected with connecting cylinders, the ends of the connecting cylinders are fixedly connected with first belt pulleys, and heating units are arranged in the inner cylinder; the heating unit comprises a pipe body, a first spray head is arranged on the pipe body, the first spray head is obliquely directed to the inner side wall of the outer cylinder, the end part of the pipe body rotates and penetrates through the connecting cylinder and the first belt pulley, and a supporting frame is fixedly connected to the end part of the pipe body;
a strip-shaped hole is formed in the outer barrel at a position opposite to the first nozzle, a waist-shaped pipe is arranged outside the strip-shaped hole, a plurality of atomizing nozzles are arranged in the strip-shaped hole, and the atomizing nozzles are communicated with an external liquid pump through hoses; the lower surface of the outer cylinder is provided with an outlet, one side in the outlet is provided with a scraping plate, and the scraping plate is attached to the outer surface of the inner cylinder; the outer cylinder is provided with an exhaust hole, and the exhaust hole is positioned at the position obliquely above the strip-shaped hole.
Preferably, the outlet position is provided with a rolling and sweeping unit, and the rolling and sweeping unit is positioned at one side of the scraping plate; the rolling and sweeping unit comprises a rolling brush, a driving belt pulley and a driven belt pulley; the end part of the rod body of the rolling brush is rotationally connected to the inner side wall of the outer cylinder, the end part of the rod body penetrates out of the outer cylinder, a driving belt pulley is fixedly connected to the end part of the rod body, the driving belt pulley is connected with a driven belt pulley through belt transmission, and the driven belt pulley is fixedly connected to the connecting cylinder.
Preferably, an arc-shaped bearing plate is arranged in the outer cylinder, the back surface of the bearing plate is fixedly connected to the inner side wall of the outer cylinder, the upper edge of the bearing plate is positioned below the atomizing nozzle, and the lower edge of the bearing plate is positioned above the outlet.
Preferably, a plurality of deflector rods are uniformly arranged on two end surfaces of the inner cylinder respectively, one end of each deflector rod is rotationally connected to the inner cylinder through a torsion spring, and the other end of each deflector rod is positioned on the outer side of the inner cylinder; arc holes are formed in the side walls of the two ends of the outer cylinder, the arc holes are connected with scraping rods in a sliding mode, the scraping rods are attached to the surface of the bearing plate and slide, the two ends of the scraping rods extend out of the arc holes, the end portions of the scraping rods are fixedly connected with pulling blocks, tension springs are fixedly connected to the pulling blocks, and the upper ends of the tension springs are fixedly connected to the end faces of the outer cylinder.
Preferably, the scraping plate comprises a top plate and a fixed plate; the fixed plate is fixedly connected in the outlet, the upper end face of the fixed plate is provided with a sliding groove, the top plate is connected in the sliding groove in a sliding way through a pressure spring, and the upper end of the top plate scratches the surface of the inner cylinder.
Preferably, the pipe body is communicated with a plurality of second nozzles.
Preferably, the pipe body is symmetrically provided with fixing rods, the fixing rods are close to the inner end surface of the inner cylinder, the end parts of the fixing rods point to the outlet, and the end parts of the fixing rods are rotationally connected with a shifting block through torsion springs; the inner end face edge position of the inner barrel is uniformly provided with a stop block, and one side of the stop block is provided with a stop lever.
Preferably, the inner surface and the outer surface of the outer cylinder are both wrapped with heat insulation layers.
The production process of the polycarboxylate water reducer is suitable for any production equipment of the polycarboxylate water reducer, and comprises the following steps of:
s1: stirring, namely stirring the liquid polycarboxylate water reducer before the liquid polycarboxylate water reducer is injected into an atomization nozzle through a liquid pump, so that sediment in the polycarboxylate water reducer is uniformly dispersed;
s2: heating, namely injecting liquefied gas into the pipe body, igniting the liquefied gas at the first nozzle position, burning the inner cylinder by flame, and heating the position temperature of the inner cylinder opposite to the atomizing nozzle to 160-200 ℃;
s3: pumping liquid, namely pumping the polycarboxylate water reducer into an atomization nozzle through a liquid pump, spraying the polycarboxylate water reducer on the surface of an inner cylinder in an atomization state, drying the polycarboxylate water reducer on the surface of the inner cylinder, and transferring the dried polycarboxylate water reducer to an outlet position through an inner cylinder which continuously rotates;
s4: scraping, namely scraping the dried polycarboxylate water reducer on the surface of the inner cylinder by using a scraper, and falling from an outlet to realize a drying flow of the polycarboxylate water reducer.
Preferably, after the polycarboxylate water reducer on the surface of the inner cylinder is scraped by the scraper in the step S4, the polycarboxylate water reducer is put into a pulverizer, and the agglomerated materials are pulverized and finely pulverized.
The invention has the advantages that:
1. spraying the atomized polycarboxylate water reducer on the surface of the inner cylinder, and attaching, drying and solidifying the polycarboxylate water reducer on the surface of the inner cylinder; the inner tube sustainability axial pivoted flame sustains the heating simultaneously for the position temperature relative with atomizer on the inner tube is in a comparatively even state, reduces the position temperature variation range of dry polycarboxylate water reducing agent on the inner tube, thereby can stably control the drying effect to the polycarboxylate water reducing agent after atomizing, guarantees polycarboxylate water reducing agent's dry quality.
2. The rotary drum is connected to the driven belt pulley arranged at the end part of the drum brush through belt transmission, the drum brush is driven to rotate, and after the scraping plate scrapes the surface of the inner drum, residues on the surface of the inner drum are cleaned through the rotary drum brush, so that the cleanliness of the surface of the inner drum is improved, and the atomized polycarboxylate superplasticizer is fully contacted with the outer surface of the inner drum.
Drawings
FIG. 1 is a perspective view of a production facility in accordance with the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a front view of the production apparatus of the present invention;
FIG. 4 is a side view of the production facility of the present invention;
FIG. 5 is a cross-sectional view of the outer cylinder of the present invention;
FIG. 6 is a perspective view of the pipe body and the first nozzle according to the present invention;
FIG. 7 is a perspective view of the inner barrel of the present invention;
FIG. 8 is a cross-sectional view of the production facility of the present invention;
FIG. 9 is an enlarged view of a portion of FIG. 8 at B;
FIG. 10 is an enlarged view of a portion of FIG. 8 at C;
FIG. 11 is a flow chart of the production process in the present invention.
In the figure: 1. an outer cylinder; 2. an inner cylinder; 3. a connecting cylinder; 4. a first belt pulley; 5. a tube body; 6. a first nozzle; 7. a support frame; 8. an atomizing nozzle; 9. an outlet; 10. a scraper; 11. an exhaust hole; 12. a rolling brush; 13. a driving pulley; 14. a driven pulley; 15. a receiving plate; 16. a deflector rod; 17. an arc-shaped hole; 18. a scraping rod; 19. pulling blocks; 20. a tension spring; 21. a top plate; 22. a fixing plate; 23. a second nozzle; 24. a fixed rod; 25. a shifting block; 26. a stop block; 27. a stop lever.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Referring to fig. 1 to 6, a production apparatus of a polycarboxylate water reducing agent comprises an outer cylinder 1 and an inner cylinder 2 fitted inside the outer cylinder 1; the two ends of the outer cylinder 1 are fixedly connected with a connecting cylinder 3, the end part of the connecting cylinder 3 is fixedly connected with a first belt pulley 4, and a heating unit is arranged in the inner cylinder 2; the heating unit comprises a pipe body 5, a first spray head 6 is arranged on the pipe body 5, the first spray head 6 is obliquely directed to the inner side wall of the outer barrel 1, the end part of the pipe body 5 rotates and penetrates through the connecting barrel 3 and the first belt pulley 4, and a supporting frame 7 is fixedly connected to the end part of the pipe body 5;
a strip-shaped hole is formed in the outer barrel 1 at a position opposite to the first nozzle 6, a waist-shaped pipe is arranged outside the strip-shaped hole, a plurality of atomizing nozzles 8 are arranged in the strip-shaped hole, and the atomizing nozzles 8 are communicated with an external liquid pump through hoses; an outlet 9 is formed in the lower surface of the outer cylinder 1, a scraping plate 10 is arranged on one side in the outlet 9, and the scraping plate 10 is attached to the outer surface of the inner cylinder 2; the outer cylinder 1 is provided with an exhaust hole 11, and the exhaust hole 11 is positioned at the obliquely upper position of the strip-shaped hole;
in the embodiment, the polycarboxylate water reducer production equipment capable of uniformly heating and drying is designed, so that the effective drying of the polycarboxylate water reducer is ensured; the first belt pulley 4 is in transmission connection with a belt pulley on an external motor through a belt, the first belt pulley 4 is driven to rotate, the first belt pulley 4 is fixedly connected with the inner cylinder 2 through the connecting cylinder 3, and the inner cylinder 2 rotates in the outer cylinder 1; the outer ring of the pipe body 5 is rotationally connected with the inner ring of the first belt pulley 4, the end part of the pipe body 5 is communicated with liquefied gas, the liquefied gas is injected into the pipe body 5 and is discharged from the first nozzle 6, the liquefied gas at the position of the first nozzle 6 is ignited, flame is impacted on the surface of the inner cylinder 2, the inner cylinder 2 is heated to 160-200 ℃, meanwhile, a liquid polycarboxylic acid water reducer is injected into the atomizing nozzle 8 through a liquid pump, the atomized polycarboxylic acid water reducer is sprayed on the surface of the inner cylinder 2, and the atomized polycarboxylic acid water reducer is adhered, dried and solidified on the surface of the inner cylinder 2; the inner cylinder 2 continuously rotates axially and simultaneously the flame continuously heats, so that the temperature of the position, opposite to the atomizing nozzle 8, on the inner cylinder 2 is in a relatively uniform state, the temperature variation range of the position, on the inner cylinder 2, for drying the polycarboxylate water reducer is reduced, the drying effect on the atomized polycarboxylate water reducer can be stably controlled, and the drying quality of the polycarboxylate water reducer is ensured;
the atomized polycarboxylate water reducer is dried and solidified on the surface of the inner cylinder 2, the inner cylinder 2 rotates to enable the dried polycarboxylate water reducer to move to the position of the scraping plate 10, the scraping plate 10 scrapes and drops the polycarboxylate water reducer, the polycarboxylate water reducer is discharged from the outlet 9 and falls onto a conveyor belt arranged below the outer cylinder 1; by the cooperation of the outer cylinder 1 and the inner cylinder 2, heat dissipation can be reduced.
Referring to fig. 8 and 10, the outlet 9 is provided with a rolling and sweeping unit, and the rolling and sweeping unit is positioned at one side of the scraper 10; the rolling and sweeping unit comprises a rolling brush 12, a driving belt pulley 13 and a driven belt pulley 14; the end part of the rod body of the rolling brush 12 is rotationally connected to the inner side wall of the outer cylinder 1, the end part of the rod body penetrates out of the outer cylinder 1, the end part of the rod body is fixedly connected with a driving belt pulley 13, the driving belt pulley 13 is connected with a driven belt pulley 14 through belt transmission, and the driven belt pulley 14 is fixedly connected to the connecting cylinder 3; after the upper end of the scraping plate 10 scrapes the material on the surface of the inner cylinder 2, some scraps or powdery residues remain on the surface of the inner cylinder 2, and when the inner cylinder 2 rotates to the position of the atomizing nozzle 8 again, the contact between the polycarboxylate water reducer and the inner cylinder 2 is blocked, the drying quality of the polycarboxylate water reducer is directly affected, and a rolling sweeping unit is arranged; the driving belt pulley 13 is fixedly connected to the rotating connecting cylinder 3, the belt is conveyed and connected to the driven belt pulley 14 arranged at the end part of the rolling brush 12, the rolling brush 12 is driven to rotate, after the scraping plate 10 scrapes the surface of the inner cylinder 2, residues on the surface of the inner cylinder 2 are cleaned through the rotating rolling brush 12, the cleanliness of the surface of the inner cylinder 2 is improved, and the atomized polycarboxylate water reducer fully contacts with the outer surface of the inner cylinder 2.
Referring to fig. 8 and 9, an arc-shaped receiving plate 15 is arranged in the outer cylinder 1, the back surface of the receiving plate 15 is fixedly connected to the inner side wall of the outer cylinder 1, the upper edge of the receiving plate 15 is positioned below the atomizing nozzle 8, and the lower edge of the receiving plate 15 is positioned above the outlet 9; the cooperation setting of urceolus 1 and inner tube 2 reduces the heat and looses, consequently, the size of export 9 also reduces the setting as far as possible, but the prerequisite is that dry polycarboxylate water-reducer can discharge from export 9 smoothly, and this can also produce extra problem, namely the polycarboxylate water-reducer of inner tube 2 surface has not rotated to scraper blade 10 position yet, there is some material to drop from inner tube 2 surface, drop inside urceolus 1, lead to the material to fail to discharge from export 9, deposit in urceolus 1, for this reason, the board 15 has been accepted to the setting, the material that drops in advance drops in the position between board 15 and inner tube 2, guide the material whereabouts to export 9 position for the material in time discharges this dry production facility.
Referring to fig. 8 and 9, two end surfaces of the inner cylinder 2 are respectively and uniformly provided with a plurality of shift levers 16, one end of each shift lever 16 is rotationally connected to the inner cylinder 2 through a torsion spring, and the other end of each shift lever 16 is positioned outside the inner cylinder 2; arc holes 17 are formed in the side walls of the two ends of the outer cylinder 1, the arc holes 17 are connected with scraping rods 18 in a sliding mode, the scraping rods 18 are attached to the surface of the bearing plate 15 to slide, the two ends of the scraping rods 18 extend out of the arc holes 17, the end portions of the scraping rods 18 are fixedly connected with pull blocks 19, tension springs 20 are fixedly connected to the pull blocks 19, and the upper ends of the tension springs 20 are fixedly connected to the end face of the outer cylinder 1; the inner cylinder 2 rotates, the inner cylinder 2 drives the deflector rod 16 to rotate, the deflector rod 16 slides along a gap between the end part of the bearing plate 15 and the inner end surface of the outer cylinder 1, when the deflector rod 16 rotates to the position of the scraper rod 18, the scraper rod 18 is pressed down by the deflector rod 16, and the scraper rod 18 pushes down the material on the bearing plate 15 to the position of the outlet 9, so that the material is rapidly discharged from the bearing plate 15; the deflector rod 16 is rotatably connected to the end surface of the inner cylinder 2 through a torsion spring, after the deflector rod 16 is pressed down to the bottom position of the arc-shaped hole 17 by the deflector rod 18, the deflector rod 16 rotates and passes over the deflector rod 18, at the moment, the deflector rod 18 also pushes down the material to the outlet 9, and then the deflector rod 18 is pulled up to reset under the pulling force of the tension spring 20.
Referring to fig. 5 and 8, the squeegee 10 includes a top plate 21 and a fixing plate 22; the fixed plate 22 is fixedly connected in the outlet 9, a chute is formed in the upper end face of the fixed plate 22, the top plate 21 is slidably connected in the chute through a pressure spring, and the upper end of the top plate 21 is scratched on the surface of the inner cylinder 2; the polycarboxylate water reducer is sprayed on the surface of the inner cylinder 2 in an atomizing way, and a drying layer is formed to be thinner after drying; and scraper blade 10 is in inner tube 2 back of scraping, scraper blade 10 upper end and inner tube 2 surface all have the loss, and the upper end of scraper blade 10 just is difficult to with inner tube 2 surface dry layer material scratch now, and this is the mode that is roof 21 and fixed plate 22 sliding fit with scraper blade 10 setting, roof 21 pass through pressure spring sliding connection in fixed plate 22 for roof 21 can be always with the dry layer material scratch of extruded state with inner tube 2 surface, also guarantees that later stage polycarboxylate water reducing agent atomizing effectively sprays at inner tube 2 surface.
Referring to fig. 6 and 8, the pipe body 5 is communicated with a plurality of second nozzles 23; the first nozzle 6 is mainly used for heating the inner cylinder 2, heating the temperature to 160 ℃ to 200 ℃, and the temperature is possibly lower than 160 ℃ in a place which is not heated by flame discharged by the first nozzle 6, the second nozzle 23 is arranged, the second nozzle 23 is used for preserving heat of the inner cylinder 2, the temperature of the inner cylinder 2 is controlled to be higher than 160 ℃, the first nozzle 6 is helped to quickly heat the inner cylinder 2 to a better temperature for drying the polycarboxylate water reducer, and the atomized polycarboxylate water reducer can be quickly dried and solidified on the surface of the inner cylinder 2.
Referring to fig. 8 and 10, the pipe body 5 is symmetrically provided with a fixing rod 24, the fixing rod 24 is close to the inner end surface of the inner cylinder 2, the end part of the fixing rod 24 points to the outlet 9, and the end part of the fixing rod 24 is rotationally connected with a shifting block 25 through a torsion spring; a stop block 26 is uniformly arranged at the edge of the inner end surface of the inner cylinder 2, and a stop lever 27 is arranged at one side of the stop block 26; the inner cylinder 2 rotates, the shifting block 25 is extruded on the stop lever 27 at first, the shifting block 25 is connected on the fixed rod 24 through the rotation of the torsion spring, after the shifting block 25 passes over the stop lever 27, the shifting block 25 is instantaneously hit on the stop block 26 under the torsion of the torsion spring to generate vibration, residual powder materials on the surface of the inner cylinder 2 are vibrated and fall, and cleaning of the surface of the inner cylinder 2 is facilitated.
Referring to fig. 8, the inner surface and the outer surface of the outer cylinder 1 are both wrapped with heat insulation layers; the heat insulation layer is arranged, so that heat dissipation is reduced, the purpose of saving energy is achieved, and meanwhile, heat radiation to workers is reduced.
Referring to fig. 11, a production process of a polycarboxylate water reducing agent, which is adapted to any one of the production apparatuses of the polycarboxylate water reducing agent described above, comprises the steps of:
s1: stirring, namely stirring the liquid polycarboxylate water reducer before the polycarboxylate water reducer is injected into the atomizing nozzle 8 through a liquid pump, so that sediment in the polycarboxylate water reducer is uniformly dispersed;
s2: heating, namely injecting liquefied gas into the pipe body 5, igniting the liquefied gas at the position of the first nozzle 6, burning the inner cylinder 2 by flame, and heating the temperature of the position, opposite to the position, of the inner cylinder 2 and the atomizing nozzle 8 to 160-200 ℃;
s3: pumping liquid, namely pumping the polycarboxylate water reducer into an atomization nozzle 8 through a liquid pump, spraying the polycarboxylate water reducer on the surface of the inner cylinder 2 in an atomization state, drying the polycarboxylate water reducer on the surface of the inner cylinder 2, and simultaneously transferring the dried polycarboxylate water reducer to an outlet 9 position through the inner cylinder 2 continuously rotating;
s4: scraping, wherein the scraping plate 10 scrapes the dried polycarboxylate water reducer on the surface of the inner cylinder 2 and falls off from the outlet 9, so that a drying process of the polycarboxylate water reducer is realized.
S4, scraping the polycarboxylate water reducer on the surface of the inner cylinder 2 by the scraper 10, putting the polycarboxylate water reducer into a pulverizer, and pulverizing and finely pulverizing the agglomerated materials.
Working principle: in the embodiment, the polycarboxylate water reducer production equipment capable of uniformly heating and drying is designed, so that the effective drying of the polycarboxylate water reducer is ensured; the first belt pulley 4 is in transmission connection with a belt pulley on an external motor through a belt, the first belt pulley 4 is driven to rotate, the first belt pulley 4 is fixedly connected with the inner cylinder 2 through the connecting cylinder 3, and the inner cylinder 2 rotates in the outer cylinder 1; the outer ring of the pipe body 5 is rotationally connected with the inner ring of the first belt pulley 4, the end part of the pipe body 5 is communicated with liquefied gas, the liquefied gas is injected into the pipe body 5 and is discharged from the first nozzle 6, the liquefied gas at the position of the first nozzle 6 is ignited, flame is impacted on the surface of the inner cylinder 2, the inner cylinder 2 is heated to 160-200 ℃, meanwhile, a liquid polycarboxylic acid water reducer is injected into the atomizing nozzle 8 through a liquid pump, the atomized polycarboxylic acid water reducer is sprayed on the surface of the inner cylinder 2, and the atomized polycarboxylic acid water reducer is adhered, dried and solidified on the surface of the inner cylinder 2; the inner cylinder 2 continuously rotates axially and simultaneously the flame continuously heats, so that the temperature of the position, opposite to the atomizing nozzle 8, on the inner cylinder 2 is in a relatively uniform state, the temperature variation range of the position, on the inner cylinder 2, for drying the polycarboxylate water reducer is reduced, the drying effect on the atomized polycarboxylate water reducer can be stably controlled, and the drying quality of the polycarboxylate water reducer is ensured;
the atomized polycarboxylate water reducer is dried and solidified on the surface of the inner cylinder 2, and the dried polycarboxylate water reducer moves to the position of the scraping plate 10 along with the rotation of the inner cylinder 2, and the scraping plate 10 scrapes and drops the polycarboxylate water reducer and discharges the polycarboxylate water reducer from the outlet 9 to fall onto a conveyor belt arranged below the outer cylinder 1; the heat dissipation can be reduced by the cooperation of the outer cylinder 1 and the inner cylinder 2;
after the upper end of the scraping plate 10 scrapes the material on the surface of the inner cylinder 2, some scraps or powdery residues remain on the surface of the inner cylinder 2, and when the inner cylinder 2 rotates to the position of the atomizing nozzle 8 again, the contact between the polycarboxylate water reducer and the inner cylinder 2 is blocked, the drying quality of the polycarboxylate water reducer is directly affected, and a rolling sweeping unit is arranged; the rotary connecting cylinder 3 is fixedly connected with a driving belt pulley 13, and is conveyed and connected with a driven belt pulley 14 arranged at the end part of the rolling brush 12 through a belt to drive the rolling brush 12 to rotate, after the scraping plate 10 scrapes the surface of the inner cylinder 2, the rotary rolling brush 12 cleans residues on the surface of the inner cylinder 2, so that the cleanliness of the surface of the inner cylinder 2 is improved, and the atomized polycarboxylate water reducer fully contacts with the outer surface of the inner cylinder 2;
through the cooperation setting of urceolus 1 and inner tube 2, reduce the heat dissipation, therefore the size of export 9 also reduces the setting as far as possible, but the prerequisite is that dry polycarboxylate water reducer can be discharged from export 9 smoothly, and this can also produce extra problem, namely the polycarboxylate water reducer that inner tube 2 surface is dry still does not rotate to scraper blade 10 position, there is some material to drop from inner tube 2 surface, drop inside urceolus 1, lead to the material to fail to discharge from export 9, deposit in urceolus 1, for this reason, set up and accept board 15, the material that drops in advance drops in the position between accept board 15 and inner tube 2, guide the material to drop to export 9 position, make the material in time discharge this dry production facility;
the inner cylinder 2 rotates to drive the deflector rod 16 to rotate, the deflector rod 16 slides along a gap between the end part of the bearing plate 15 and the inner end surface of the outer cylinder 1, when the deflector rod 16 rotates to the position of the scraper rod 18, the scraper rod 18 is pressed down by the deflector rod 16, and the scraper rod 18 pushes down the material on the bearing plate 15 to the position of the outlet 9, so that the material is rapidly discharged from the bearing plate 15; the deflector rod 16 is rotationally connected to the end surface of the inner cylinder 2 through a torsion spring, after the deflector rod 16 is pressed down to the bottom position of the arc-shaped hole 17 by the deflector rod 18, the deflector rod 16 rotates and passes over the deflector rod 18, at the moment, the deflector rod 18 also pushes down the materials to the outlet 9, and then the deflector rod 18 is pulled up and reset under the action of the tension spring 20;
the polycarboxylate water reducer is sprayed on the surface of the inner cylinder 2 in an atomizing way, and a drying layer is formed to be thinner after drying; after the scraping plate 10 is scraped on the inner cylinder 2, the upper end of the scraping plate 10 and the surface of the inner cylinder 2 are worn, and at the moment, the upper end of the scraping plate 10 is difficult to scrape the material on the surface of the inner cylinder 2, therefore, the scraping plate 10 is arranged in a sliding fit mode of a top plate 21 and a fixed plate 22, and the top plate 21 is slidably connected in the fixed plate 22 through a pressure spring, so that the top plate 21 can scrape the material on the surface of the inner cylinder 2 in an extrusion state all the time, and the purpose that the late-stage polycarboxylate water reducer is atomized and effectively sprayed on the surface of the inner cylinder 2 is ensured;
the first nozzle 6 is mainly used for heating the inner cylinder 2, the temperature is heated to 160 ℃ to 200 ℃, and the temperature is possibly lower than 160 ℃ at a place which is not heated by flame discharged by the first nozzle 6, the second nozzle 23 is arranged, the second nozzle 23 is used for preserving heat of the inner cylinder 2, the temperature of the inner cylinder 2 is controlled to be more than 160 ℃, the first nozzle 6 is beneficial to quickly heating the inner cylinder 2 to a better temperature for drying the polycarboxylate water reducer, and the atomized polycarboxylate water reducer can be quickly dried and solidified on the surface of the inner cylinder 2;
the inner cylinder 2 rotates, the shifting block 25 is extruded on the stop lever 27 at first, the shifting block 25 is connected on the fixed rod 24 through the rotation of the torsion spring, after the shifting block 25 passes over the stop lever 27, the shifting block 25 is instantaneously hit on the stop block 26 under the torsion of the torsion spring to generate vibration, residual powder materials on the surface of the inner cylinder 2 are vibrated and fall, and cleaning of the surface of the inner cylinder 2 is facilitated.
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 embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The production equipment of the polycarboxylate water reducer is characterized in that: comprises an outer cylinder (1) and an inner cylinder (2) which is matched with the inner part of the outer cylinder (1); connecting cylinders (3) are fixedly connected to the two ends of the outer cylinder (1), first belt pulleys (4) are fixedly connected to the ends of the connecting cylinders (3), and heating units are arranged in the inner cylinder (2); the heating unit comprises a pipe body (5), a first spray head (6) is arranged on the pipe body (5), the first spray head (6) is obliquely directed to the inner side wall of the outer barrel (1), the end part of the pipe body (5) rotates and penetrates through the connecting barrel (3) and the first belt pulley (4), and a supporting frame (7) is fixedly connected to the end part of the pipe body (5);
a strip-shaped hole is formed in the outer cylinder (1) at a position opposite to the first spray head (6), a waist-shaped pipe is arranged outside the strip-shaped hole, a plurality of atomizing spray heads (8) are arranged in the strip-shaped hole, and the atomizing spray heads (8) are communicated with an external liquid pump through hoses; an outlet (9) is formed in the lower surface of the outer cylinder (1), a scraping plate (10) is arranged on one side in the outlet (9), and the scraping plate (10) is attached to the outer surface of the inner cylinder (2); the outer cylinder (1) is provided with an exhaust hole (11), and the exhaust hole (11) is positioned at the upper inclined position of the strip-shaped hole.
2. The production equipment of the polycarboxylate superplasticizer, as set forth in claim 1, characterized in that: the position of the outlet (9) is provided with a rolling and sweeping unit which is positioned at one side of the scraping plate (10); the rolling and sweeping unit comprises a rolling brush (12), a driving belt pulley (13) and a driven belt pulley (14); the end part of the rod body of the rolling brush (12) is rotationally connected to the inner side wall of the outer cylinder (1), the end part of the rod body penetrates out of the outer cylinder (1), a driving belt pulley (13) is fixedly connected to the end part of the rod body, the driving belt pulley (13) is connected with a driven belt pulley (14) through belt transmission, and the driven belt pulley (14) is fixedly connected to the connecting cylinder (3).
3. The production equipment of the polycarboxylate superplasticizer according to claim 2, wherein: an arc-shaped bearing plate (15) is arranged in the outer cylinder (1), the back surface of the bearing plate (15) is fixedly connected to the inner side wall of the outer cylinder (1), the upper edge of the bearing plate (15) is located below the atomizing nozzle (8), and the lower edge of the bearing plate (15) is located above the outlet (9).
4. A production facility of a polycarboxylate water reducing agent according to claim 3, characterized in that: a plurality of deflector rods (16) are uniformly arranged on two end surfaces of the inner cylinder (2), one end of each deflector rod (16) is rotationally connected to the inner cylinder (2) through a torsion spring, and the other end of each deflector rod (16) is positioned on the outer side of the inner cylinder (2); arc holes (17) are formed in the side walls of the two ends of the outer barrel (1), the arc holes (17) are connected with scraping rods (18) in a sliding mode, the scraping rods (18) are attached to the surface of the bearing plate (15) in a sliding mode, the two ends of the scraping rods (18) extend out of the arc holes (17), the end portions of the scraping rods (18) are fixedly connected with pull blocks (19), tension springs (20) are fixedly connected to the pull blocks (19), and the upper ends of the tension springs (20) are fixedly connected to the end face of the outer barrel (1).
5. The production equipment of the polycarboxylate superplasticizer according to claim 2, wherein: the scraper (10) comprises a top plate (21) and a fixed plate (22); the fixed plate (22) is fixedly connected in the outlet (9), a chute is formed in the upper end face of the fixed plate (22), the top plate (21) is slidably connected in the chute through a pressure spring, and the upper end of the top plate (21) is scratched on the surface of the inner cylinder (2).
6. The production equipment of the polycarboxylate superplasticizer, as set forth in claim 1, characterized in that: a plurality of second spray heads (23) are communicated with the pipe body (5).
7. The production equipment of the polycarboxylate superplasticizer, as set forth in claim 6, characterized in that: the pipe body (5) is symmetrically provided with a fixed rod (24), the fixed rod (24) is close to the inner end surface of the inner barrel (2), the end part of the fixed rod (24) points to the outlet (9), and the end part of the fixed rod (24) is rotationally connected with a shifting block (25) through a torsion spring; the inner end surface edge position of the inner barrel (2) is uniformly provided with a stop block (26), and one side of the stop block (26) is provided with a stop lever (27).
8. The production equipment of the polycarboxylate superplasticizer, as set forth in claim 4, wherein: the inner surface and the outer surface of the outer cylinder (1) are both wrapped with heat preservation layers.
9. A production process of a polycarboxylate superplasticizer is characterized by comprising the following steps of: the production process is suitable for the production equipment of the polycarboxylate superplasticizer according to any one of claims 1-8, and comprises the following steps:
s1: stirring, namely stirring the liquid polycarboxylate water reducer before the liquid polycarboxylate water reducer is injected into an atomization nozzle (8) through a liquid pump, so that sediment in the polycarboxylate water reducer is uniformly dispersed;
s2: heating, namely injecting liquefied gas into the pipe body (5), igniting the liquefied gas at the first nozzle (6), burning the inner cylinder (2) by flame, and heating the temperature of the position of the inner cylinder (2) opposite to the atomizing nozzle (8) to 160-200 ℃;
s3: pumping liquid, namely pumping the polycarboxylate water reducer into an atomization nozzle (8) through a liquid pump, spraying the polycarboxylate water reducer on the surface of the inner cylinder (2) in an atomization state, drying the polycarboxylate water reducer on the surface of the inner cylinder (2), and transferring the dried polycarboxylate water reducer to an outlet (9) through the inner cylinder (2) which continuously rotates at the same time;
s4: scraping, wherein the scraping plate (10) scrapes the dried polycarboxylate water reducer on the surface of the inner cylinder (2) and falls off from the outlet (9), so that a drying process of the polycarboxylate water reducer is realized.
10. The production process of the polycarboxylate superplasticizer, as set forth in claim 9, characterized in that: and S4, scraping the polycarboxylate water reducer on the surface of the inner cylinder (2) by using the scraper (10), and then putting the scraped polycarboxylate water reducer into a pulverizer to pulverize the agglomerated materials and finely pulverize the agglomerated materials.
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| CN202311223026.8A CN116983687B (en) | 2023-09-21 | 2023-09-21 | Production equipment and process of polycarboxylate superplasticizer |
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| CN202311223026.8A CN116983687B (en) | 2023-09-21 | 2023-09-21 | Production equipment and process of polycarboxylate superplasticizer |
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| CN116983687B (en) | 2023-12-29 |
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