CN114368772A

CN114368772A - Continuous spray carbonization process of nano calcium carbonate for polypropylene

Info

Publication number: CN114368772A
Application number: CN202210038645.9A
Authority: CN
Inventors: 毕栋
Original assignee: Jiande Huayu Nano Technology Co ltd
Current assignee: Jiande Huayu Nano Technology Co ltd
Priority date: 2022-01-13
Filing date: 2022-01-13
Publication date: 2022-04-19

Abstract

The invention discloses a continuous spray carbonization process of nano calcium carbonate for polypropylene, which relates to the field related to nano calcium carbonate and comprises a spray tower, wherein a spray tower cover is arranged on the spray tower in a sliding manner, five fixing bolts are arranged between the spray tower cover and the spray tower in a threaded manner, an auxiliary mechanism is arranged on the spray tower cover, a reaction space is arranged in the spray tower, a stirring mechanism is arranged in the reaction space, a spray plate is fixedly arranged in the spray tower cover, a continuous spray mechanism is arranged in the spray plate, a shifting mechanism is arranged in the spray tower cover, CO2 gas with the volume concentration of 22-31% is introduced into the spray tower, the gas concentration is sequentially increased from top to bottom, and an annular rack plate is rotated to rotate an iris mechanism so as to adjust the spray aperture of the iris mechanism, therefore, the diameter of the sprayed material can be adjusted according to the requirement, and the applicability of the equipment is greatly improved.

Description

Continuous spray carbonization process of nano calcium carbonate for polypropylene

Technical Field

The invention relates to the field related to nano calcium carbonate, in particular to a continuous spray carbonization process of nano calcium carbonate for polypropylene.

Background

The nano calcium carbonate can improve the rheological property of the plastic master batch, improve the moldability of the plastic master batch, has the functions of toughening and reinforcing when used as a plastic filler, improves the bending strength and the bending elastic modulus of plastics, the thermal deformation temperature and the dimensional stability of the plastics, and simultaneously endows the plastic with heat hysteresis, so the nano calcium carbonate is widely applied to industrial production, a continuous spray carbonization method is used for production in the production of the nano calcium carbonate, but the current spray tower cannot change the size of spray particles according to requirements, so the equipment applicability is low.

Disclosure of Invention

The invention aims to provide a continuous spray carbonization process of nano calcium carbonate for polypropylene, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a continuous spray carbonization process of nano calcium carbonate for polypropylene is characterized in that: the method comprises the following steps:

the method comprises the following steps: pretreating, namely calcining and digesting limestone to obtain Ca (OH)2 suspension with the concentration of 11-17%, wherein the mass ratio of coke to limestone in calcination is controlled to be 1: 12-13, the calcination temperature is controlled to be 900-990 ℃, and the time is 10 hours;

step two: pre-treatment, namely mixing the solution obtained in the step one with hydroxypropyl cellulose according to the proportion of 1: 1.5-2, and performing ultrasonic treatment until complete dispersion and distillation are performed to obtain a suspension concentrated solution;

step three: performing spray carbonization reaction, namely introducing 22-31% by volume of CO2 gas into a spray tower, sequentially increasing the gas concentration from top to bottom, and adding the suspension concentrate obtained in the step two into a continuous spray disc for spraying at the spraying speed of 3-5 times/s;

step four: and (3) post-treatment, namely performing filter pressing and drying on the raw materials prepared in the third step to obtain a finished product, wherein the water content of the filter-pressed raw materials is controlled to be 28-33%, the drying temperature is controlled to be 90-110 ℃, and the water content is reduced to 0.5% and then the finished product is stopped.

In addition, in one embodiment, the mass ratio of the calcined powder to water in digestion is controlled to be 1: 5-7, the water temperature is controlled to be 30-45 ℃, and the time is controlled to be 30-42 min.

The processing equipment in the third step comprises a spraying tower, a spraying tower cover is arranged on the spraying tower in a sliding mode, five fixing bolts are arranged between the spraying tower cover and the spraying tower in a threaded mode, an auxiliary mechanism is arranged on the spraying tower cover, a reaction space is arranged in the spraying tower, a stirring mechanism is arranged in the reaction space, a spraying plate is fixedly arranged in the spraying tower cover, a continuous spraying mechanism is arranged in the spraying plate, and a shifting mechanism is arranged in the spraying tower cover.

Preferably, the auxiliary mechanism comprises a motor frame fixedly installed on the spraying tower cover, a power motor is fixedly arranged on the motor frame, a motor shaft is arranged in the power motor, suspension loops are fixedly arranged on the spraying tower in a bilateral symmetry mode, a heating spiral space is arranged in the spraying tower, a discharge port is fixedly arranged at the bottom of the spraying tower, a feeding pipe is fixedly arranged on the left side of the spraying tower cover, and a vent pipe is fixedly arranged on the right side of the spraying tower cover.

Preferably, the stirring mechanism comprises a stirring shaft fixedly mounted on the motor shaft, a stirring fan is fixedly arranged on the stirring shaft, a hollow shaft cylinder is fixedly arranged on the spraying plate, a rotating space is arranged in the hollow shaft cylinder, a driving bevel gear is fixedly arranged on the stirring shaft, and when stirring is needed, the power motor is started, so that the motor shaft rotates, the stirring fan rotates, and emulsified slurry is mixed more fully.

Preferably, the hollow shaft cylinder is provided with fan blade shafts which are bilaterally symmetrical to each other, each fan blade shaft is fixedly provided with a driven bevel gear, each driven bevel gear is meshed with the corresponding driving bevel gear, each fan blade shaft is provided with a rotating fan blade in a sliding manner, each rotating fan blade is provided with a small bolt with the corresponding fan blade shaft in a threaded manner, and when the stirring shaft rotates, the driving bevel gear rotates, the driven bevel gears rotate, the fan blade shafts rotate, the rotating fan blades rotate, slurry is stirred up and down, the communication between upper and lower layers of slurry is increased, and the slurry is mixed more fully.

As preferred, continuous injection mechanism includes fixed mounting and is in twenty one injection head on the spraying board, every be equipped with iris mechanism on the injection head respectively, every iris mechanism is last to be fixed respectively and is equipped with the atomizer, every the atomizer respectively with the filling tube intercommunication, be equipped with the sliding space in the spraying board, it is equipped with the annular rack board to slide in the sliding space, be equipped with three ring rack on the annular rack board respectively, every the ring rack respectively with the meshing of iris mechanism when needs change and spray the aperture, rotate the annular rack board, thereby make the ring rack rotates, thereby makes iris mechanism rotates, thereby the adjustment the spraying aperture of iris mechanism to can spray the size of material diameter according to the demand adjustment, improve the suitability of equipment greatly.

Preferably, the shifting mechanism comprises a micro motor fixedly installed in the stirring shaft, a small threaded rod is arranged in the micro motor in a power mode, a movable threaded block is arranged on the small threaded rod in a threaded mode, a clamping convex block is symmetrically and fixedly arranged on the movable threaded block in a front-back mode and is started, and therefore the small threaded rod rotates, and the movable threaded block moves up and down.

Preferably, an inner gear disc is fixedly arranged on the annular rack plate, a large meshing gear is arranged on the upper side of the inner gear disc, three second sliding rods are fixedly arranged in the large meshing gear, each second sliding rod is respectively connected with the inner gear disc in a sliding manner, the large meshing gear is meshed with the upper side of the spraying plate, a short shaft is rotatably arranged on the hollow shaft cylinder, a reversing gear is fixedly arranged on the short shaft, a small meshing gear is arranged on the lower side of the inner gear disc, three first sliding rods are fixedly arranged on the small meshing gear, the first sliding rods are connected with the inner gear disc in a sliding manner, the small meshing gear is meshed with the reversing gear, the reversing gear is meshed with the lower side of the inner gear disc, the inner gear disc is a disc with a hole-opening fixing plate and an upper opening and a lower opening at the middle part, and after the movable threaded block is inserted into the large meshing gear, therefore, the large meshed gear rotates along with the stirring shaft, the inner fluted disc and the large meshed gear rotate in the same direction, and after the movable thread block is inserted into the small meshed gear, the small meshed gear rotates along with the stirring shaft, so that the reversing gear rotates, the inner fluted disc rotates in the opposite direction of the small meshed gear, the annular rack plate rotates in the positive and negative directions, the size of the spraying aperture is adjusted while stirring is conducted, and the working efficiency is greatly improved.

In conclusion, the beneficial effects of the invention are as follows:

1. according to the iris mechanism, the annular rack is rotated by rotating the annular rack plate, so that the iris mechanism is rotated, the spraying aperture of the iris mechanism is adjusted, the diameter of the sprayed material can be adjusted according to requirements, and the applicability of the device is greatly improved.

2. According to the invention, the stirring fan is rotated, so that the driving bevel gear is rotated, the driven bevel gear is rotated, the fan blade shaft is rotated, the rotating fan blades are rotated, and the slurry is stirred up and down, so that the communication between the upper layer slurry and the lower layer slurry is increased, and the slurry is mixed more fully.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a whole full-section of a continuous spray carbonization process of nano calcium carbonate for polypropylene according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of the invention at B of FIG. 1;

FIG. 4 is an enlarged view of FIG. 1 at C;

FIG. 5 is a schematic cross-sectional view taken at D-D of FIG. 3 in accordance with the present invention;

FIG. 6 is an oblique view of the spray plate of FIG. 1 in accordance with the present invention;

FIG. 7 is a rear view of the spray plate of FIG. 1 in accordance with the present invention;

FIG. 8 is an oblique view of the annular rack plate of FIG. 1 according to the present invention

Fig. 9 is a front cross-sectional view of the iris mechanism of fig. 7 in accordance with the present invention.

The scores in the figures are as follows: 11. hanging a lug; 12. a discharge port; 13. heating the helical space; 14. a reaction space; 15. a minor axis; 16. a spray tower cover; 17. a feed tube; 18. a breather pipe; 19. a motor frame; 20. a motor shaft; 21. a power motor; 22. a spray plate; 23. a hollow shaft cylinder; 24. a stirring shaft; 25. a stirring fan; 26. a ring-shaped rack plate; 27. an inner fluted disc; 28. a large meshing gear; 29. a micro motor; 30. a small threaded rod; 31. moving the thread block; 32. a small meshed gear; 33. a reversing gear; 34. a first sliding rod; 35. a second sliding rod; 38. an iris mechanism; 39. a sprayer; 42. an annular rack; 43. an injector head; 44. a rotating space; 45. a sliding space; 46. a drive bevel gear; 47. a driven bevel gear; 48. a fan blade shaft; 49. rotating the fan blades; 50. a small bolt; 101. an auxiliary mechanism; 102. a continuous jet mechanism; 103. a shifting mechanism; 104. and a stirring mechanism.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

The invention will now be described in detail with reference to fig. 1-9, wherein for ease of description the orientations described below are now defined as follows: the up, down, left, right, front and rear directions described below correspond to the front, back, left, right, top and bottom directions of the view direction of fig. 1, fig. 1 is a front view of the apparatus of the present invention, and the directions shown in fig. 1 correspond to the front, back, left, right, top and bottom directions of the apparatus of the present invention.

Referring to fig. 1-9, an embodiment of the present invention is shown: a continuous spray carbonization process of nano calcium carbonate for polypropylene is characterized in that: the method comprises the following steps:

The processing equipment in the third step comprises a spraying tower 10, a spraying tower cover 16 is arranged on the spraying tower 10 in a sliding mode, five fixing bolts are arranged between the spraying tower cover 16 and the spraying tower 10 in a threaded mode, an auxiliary mechanism 101 is arranged on the spraying tower cover 16, a reaction space 14 is arranged in the spraying tower 10, a stirring mechanism 104 is arranged in the reaction space 14, a spraying plate 22 is fixedly arranged in the spraying tower cover 16, a continuous spraying mechanism 102 is arranged in the spraying plate 22, and a shifting mechanism 103 is arranged in the spraying tower cover 16.

In addition, in one embodiment, the auxiliary mechanism 101 includes a motor frame 19 fixedly mounted on the spraying tower cover 16, a power motor 21 is fixedly mounted on the motor frame 19, a motor shaft 20 is dynamically disposed in the power motor 21, suspension loops 11 are fixedly disposed on the spraying tower 10 in a bilateral symmetry manner, a heating spiral space 13 is disposed in the spraying tower 10, a discharge hole 12 is fixedly disposed at the bottom of the spraying tower 10, a feeding pipe 17 is fixedly disposed on the left side of the spraying tower cover 16, and a vent pipe 18 is fixedly disposed on the right side of the spraying tower cover 16.

In addition, in one embodiment, the stirring mechanism 104 includes a stirring shaft 24 fixedly installed on the motor shaft 20, a stirring fan 25 is fixedly installed on the stirring shaft 24, a hollow shaft cylinder 23 is fixedly installed on the spraying plate 22, a rotating space 44 is installed in the hollow shaft cylinder 23, and a driving bevel gear 46 is fixedly installed on the stirring shaft 24, and when stirring is required, the power motor 21 is started, so that the motor shaft 20 rotates, the stirring shaft 24 rotates, the stirring fan 25 rotates, and the emulsified slurry is mixed more fully.

In addition, in one embodiment, fan blade shafts 48 are rotatably arranged on the hollow shaft barrel 23 in a left-right symmetrical manner, a driven bevel gear 47 is fixedly arranged on each fan blade shaft 48, each driven bevel gear 47 is engaged with the driving bevel gear 46, a rotating fan blade 49 is slidably arranged on each fan blade shaft 48, a small bolt 50 is arranged between each rotating fan blade 49 and the fan blade shaft 48 in a threaded manner, when the stirring shaft 24 rotates, the driving bevel gear 46 rotates, the driven bevel gear 47 rotates, the fan blade shafts 48 rotate, the rotating fan blades 49 rotate, the slurry is stirred up and down, the communication between the slurry in the upper layer and the slurry in the lower layer is increased, and the slurry is mixed more fully.

In addition, in one embodiment, the continuous spraying mechanism 102 includes twenty-one spraying heads 43 fixedly mounted on the spraying plate 22, each spraying head 43 is respectively provided with an iris mechanism 38, each iris mechanism 38 is respectively fixedly provided with a sprayer 39, each sprayer 39 is respectively communicated with the feeding pipe 17, the spraying plate 22 is provided with a sliding space 45, the sliding space 45 is provided with a circular rack plate 26 in a sliding manner, the circular rack plate 26 is respectively provided with three circular racks 42, each circular rack 42 is respectively meshed with the iris mechanism 38, when the spraying aperture needs to be changed, the circular rack plate 26 is rotated, so that the circular rack 42 is rotated, the iris mechanism 38 is rotated, the spraying aperture of the iris mechanism 38 is adjusted, and the size of the diameter of the sprayed material can be adjusted according to the requirement, the applicability of the equipment is greatly improved.

In addition, in one embodiment, the shifting mechanism 103 comprises a micro motor 29 fixedly installed in the stirring shaft 24, a small threaded rod 30 is dynamically arranged in the micro motor 29, a moving threaded block 31 is arranged on the small threaded rod 30 in a threaded manner, a snap-in bump is fixedly arranged on the moving threaded block 31 in a front-back symmetrical manner, and the micro motor 29 is started, so that the small threaded rod 30 rotates, and the moving threaded block 31 moves up and down.

In addition, in one embodiment, an inner toothed disc 27 is fixedly disposed on the annular rack plate 26, a large engaging gear 28 is disposed on the upper side of the inner toothed disc 27, three second sliding rods 35 are fixedly disposed in the large engaging gear 28, each second sliding rod 35 is slidably connected to the inner toothed disc 27, the large engaging gear 28 is engaged with the upper side of the spray plate 22, a short shaft 15 is rotatably disposed on the hollow shaft tube 23, a reversing gear 33 is fixedly disposed on the short shaft 15, a small engaging gear 32 is disposed on the lower side of the inner toothed disc 27, three first sliding rods 34 are fixedly disposed on the small engaging gear 32, the first sliding rods 34 are slidably connected to the inner toothed disc 27, the small engaging gear 32 is engaged with the reversing gear 33, the reversing gear 33 is engaged with the lower side of the inner toothed disc 27, the inner toothed disc 27 is a disc having a hole fixing plate at the middle portion and having an upper and lower opening, after the movable screw block 31 is inserted into the large meshed gear 28, the large meshed gear 28 is made to rotate along with the stirring shaft 24, so that the inner gear 27 and the large meshed gear 28 rotate in the same direction, and after the movable screw block 31 is inserted into the small meshed gear 32, the small meshed gear 32 is made to rotate along with the stirring shaft 24, so that the reversing gear 33 rotates, so that the inner gear 27 and the small meshed gear 32 rotate in opposite directions, so that the forward and reverse rotation of the annular rack plate 26 is controlled, the size of the spray aperture is adjusted while stirring, and the working efficiency is greatly improved.

In the concrete embodiment, when nano calcium carbonate needs to be prepared, slurry is put into the reaction space 14, the spraying tower cover 16 is covered, five bolts are connected, the spraying tower cover 16 and the spraying tower 10 are sealed, the power motor 21 is started, the motor shaft 20 is rotated, the stirring shaft 24 is rotated, the stirring fan 25 is rotated, emulsified slurry is mixed more sufficiently, the driving bevel gear 46 is rotated when the stirring shaft 24 is rotated, the driven bevel gear 47 is rotated, the fan blade shaft 48 is rotated, the rotating fan blade 49 is rotated, slurry is stirred up and down, the communication between upper and lower layers of slurry is increased, emulsified slurry is pumped out through the discharge port 12 after stirring is completed, and the tank body is filled with reaction gas through the vent pipe 18, the mixed slurry is fed into the spray plate 22 through the feed pipe 17, so that the spray carbonization reaction is performed through the spray plate 22, the micro motor 29 is started, the small screw rod 30 is rotated, the moving screw block 31 is moved up and down, the moving screw block 31 is inserted into the large meshed gear 28, the large meshed gear 28 is rotated along with the stirring shaft 24, the inner toothed disc 27 and the large meshed gear 28 are rotated in the same direction, the small meshed gear 32 is rotated along with the stirring shaft 24, the reversing gear 33 is rotated, the inner toothed disc 27 and the small meshed gear 32 are rotated in the opposite direction, the forward and reverse rotation of the annular rack plate 26 is controlled, and the annular rack 42 is rotated, thereby make iris mechanism 38 rotates to the adjustment the injection aperture of iris mechanism 38 to can adjust the size of spraying material diameter as required, improve the suitability of equipment greatly, thereby adjust the size of injection aperture when stirring, improve work efficiency greatly.

The above description is only an embodiment of the invention, but the scope of the invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the invention. Therefore, the protection scope of the invention should be subject to the protection scope defined by the claims.

Claims

1. A continuous spray carbonization process of nano calcium carbonate for polypropylene is characterized in that: the method comprises the following steps:

2. The continuous spray carbonization process of nano calcium carbonate for polypropylene according to claim 1, characterized in that: the mass ratio of calcined powder to water in digestion is controlled to be 1: 5-7, the water temperature is controlled to be 30-45 ℃, and the time is controlled to be 30-42 min.

3. The processing equipment used in the continuous spray carbonization process of nano calcium carbonate for polypropylene according to claim 1 comprises a spray tower (10), and is characterized in that: the utility model discloses a spray tower, including spraying tower (10), spraying tower lid (16) with the screw thread is equipped with five fixing bolt between spraying tower (10), be equipped with complementary unit (101) on spraying tower lid (16), be equipped with reaction space (14) in spraying tower (10), be equipped with rabbling mechanism (104) in reaction space (14), fixed spraying board (22) that are equipped with in spraying tower lid (16), be equipped with continuous injection mechanism (102) in spraying board (22), be equipped with in spraying tower lid (16) and trade moving mechanism (103).

4. The continuous spray carbonization equipment of nano calcium carbonate for polypropylene according to claim 3, characterized in that: auxiliary mechanism (101) include fixed mounting motor frame (19) on spraying tower lid (16), motor frame (19) are gone up to fix and are equipped with motor power (21), power is equipped with motor shaft (20) in motor power (21), the fixed hangers (11) that are equipped with of bilateral symmetry on spraying tower (10), be equipped with heating spiral space (13) in spraying tower (10), spraying tower (10) bottom is fixed and is equipped with discharge gate (12), fixed filling tube (17) that are equipped with in spraying tower lid (16) left side, spraying tower lid (16) right side is fixed and is equipped with breather pipe (18).

5. The continuous spray carbonization equipment of nano calcium carbonate for polypropylene according to claim 3, characterized in that: the stirring mechanism (104) comprises a stirring shaft (24) fixedly mounted on the motor shaft (20), a stirring fan (25) is fixedly arranged on the stirring shaft (24), a hollow shaft cylinder (23) is fixedly arranged on the spraying plate (22), a rotating space (44) is arranged in the hollow shaft cylinder (23), and a driving bevel gear (46) is fixedly arranged on the stirring shaft (24).

6. The continuous spray carbonization equipment of nano calcium carbonate for polypropylene according to claim 5, characterized in that: the fan blade type fan is characterized in that fan blade shafts (48) are symmetrically arranged on the hollow shaft barrel (23) in a left-right rotating mode, driven bevel gears (47) are fixedly arranged on the fan blade shafts (48) respectively, each driven bevel gear (47) is meshed with the driving bevel gear (46) respectively, rotating fan blades (49) are arranged on the fan blade shafts (48) in a sliding mode respectively, and small bolts (50) are arranged between each rotating fan blade (49) and the fan blade shaft (48) in a threaded mode respectively.

7. The continuous spray carbonization equipment of nano calcium carbonate for polypropylene according to claim 3, characterized in that: continuous injection mechanism (102) is including fixed mounting twenty one injection head (43) on spraying board (22), every be equipped with iris mechanism (38) on injection head (43) respectively, every fixed atomizer (39) that are equipped with respectively on iris mechanism (38), every atomizer (39) respectively with filling tube (17) intercommunication, be equipped with slide space (45) in spraying board (22), the slip is equipped with annular rack board (26) in slide space (45), be equipped with three rack ring (42) on rack ring board (26) respectively, every rack ring (42) respectively with iris mechanism (38) meshing.

8. The continuous spray carbonization equipment of nano calcium carbonate for polypropylene according to claim 3, characterized in that: trade actuating mechanism (103) including fixed mounting micro motor (29) in (mixing) shaft (24), power is equipped with little screw rod (30) in micro motor (29), screw thread is equipped with removal screw block (31) on little screw rod (30), the fixed lug of going into that is equipped with of front and back symmetry on removal screw block (31).

9. The continuous spray carbonization apparatus of nano calcium carbonate for polypropylene according to claim 8, wherein: fixed internal tooth dish (27) that is equipped with on annular rack board (26), the upper side is equipped with big meshing gear (28) in internal tooth dish (27), fixed being equipped with three No. two slide bars (35) in big meshing gear (28), every No. two slide bars (35) respectively with sliding connection between internal tooth dish (27), big meshing gear (28) with spraying board (22) upside meshing, it is equipped with minor axis (15) to rotate on hollow shaft section of thick bamboo (23), fixed being equipped with reversing gear (33) on minor axis (15), downside is equipped with little meshing gear (32) in internal tooth dish (27), fixed being equipped with three slide bar (34) No. one on little meshing gear (32), slide bar (34) with sliding connection between internal tooth dish (27), little meshing gear (32) with reversing gear (33) meshing, the reversing gear (33) is meshed with the lower side of the inner fluted disc (27).