阅读说明：本技术 一种混凝土添加剂和混凝土的混料工艺及其装置 (Concrete additive and concrete mixing process and device ) 是由 吴星 于 2021-01-13 设计创作，主要内容包括：本发明公开了一种混凝土添加剂和混凝土的混料工艺及其装置,属于混凝土添加剂技术领域,混凝土添加剂按重量份计包括以下原料组分：聚乙烯：100份；丁苯橡胶：10～30份；硅烷添加剂：10～30份；云母粉：2～8份；抗氧剂：1～4份；装置包括支架、第一搅拌机构、进料斗、第二搅拌机构和动力机构,第一搅拌机构固定连接在支架上,进料斗固定连接在第一搅拌机构上,第二搅拌机构固定连接在进料斗上,动力机构固定连接在支架上；进料斗包括口型框、斗型件、第一挡板、第一固定件、第一出料口和第一固定板,口型框固定连接在斗型件顶端；本发明提高了沥青混凝土的抗车辙性能、低温性能和抗老化性能。(The invention discloses a concrete additive and a concrete mixing process and a concrete mixing device, belonging to the technical field of concrete additives, wherein the concrete additive comprises the following raw material components in parts by weight: polyethylene: 100 parts of (A); styrene-butadiene rubber: 10-30 parts; silane additive: 10-30 parts; mica powder: 2-8 parts; antioxidant: 1-4 parts; the device comprises a support, a first stirring mechanism, a feeding hopper, a second stirring mechanism and a power mechanism, wherein the first stirring mechanism is fixedly connected to the support; the feeding hopper comprises a mouth-shaped frame, a hopper-shaped piece, a first baffle, a first fixing piece, a first discharging hole and a first fixing plate, wherein the mouth-shaped frame is fixedly connected to the top end of the hopper-shaped piece; the invention improves the anti-rutting performance, low-temperature performance and anti-aging performance of the asphalt concrete.)

1. The concrete additive is characterized by comprising the following raw material components in parts by weight: polyethylene: 100 parts of (A); styrene-butadiene rubber: 15-20 parts of a solvent; silane additive: 2-8 parts; mica powder: 68-88 parts; antioxidant: 2-3 parts.

2. A mixing process of concrete by using a concrete additive is characterized by comprising the following steps:

s1: adding mica powder and a silane additive into an organic solvent, carrying out surface modification reaction under the condition of heating reflux, cooling, filtering, washing and drying to obtain treated mica powder;

s2: uniformly mixing polyethylene, styrene butadiene rubber, a silane additive, the treated mica powder and an antioxidant, and then performing blending extrusion and granulation by an extruder to obtain the high-modulus asphalt concrete additive.

3. The concrete mixing process using the concrete additive as claimed in claim 2, wherein the organic solvent is one of xylene, toluene, cyclohexanone, chlorobenzene and pyridine.

4. The concrete mixing process using the concrete additive as claimed in claim 2, wherein in step S1, the drying temperature is 90-110 ℃ and the drying time is 2-3 h.

5. The concrete mixing device is characterized by comprising a support (1), a first stirring mechanism (2), a feeding hopper (3), a second stirring mechanism (4) and a power mechanism (5), wherein the first stirring mechanism (2) is fixedly connected to the support (1), the feeding hopper (3) is fixedly connected to the first stirring mechanism (2), the second stirring mechanism (4) is fixedly connected to the feeding hopper (3), and the power mechanism (5) is fixedly connected to the support (1);

the feeding hopper (3) comprises an opening frame (31), a bucket-shaped piece (32), a first baffle (33), a first fixing piece (34), a first discharging hole (35) and a first fixing plate (36), the opening frame (31) is fixedly connected to the top end of the bucket-shaped piece (32), the first discharging hole (35) is fixedly connected to the bottom end of the bucket-shaped piece (32), the first fixing plate (36) is fixedly connected to the bucket-shaped piece (32), a first groove is formed in the first fixing plate (36), the first baffle (33) is connected in the first groove in a sliding mode, the first baffle (33) is located right below the first discharging hole (35), the first fixing piece (34) is fixedly connected to the first fixing plate (36), and rollers are arranged on the first fixing piece (34);

the second stirring mechanism (4) comprises a first pipe body (41), a first funnel (42), a first discharge hole (43), a first fixing piece (44), a first connecting piece (45), a second fixing piece (46), a first motor (47) and a first connecting plate (48), wherein the first connecting plate (48) is fixedly connected to the mouth-shaped frame (31), the first fixing piece (44) and the second fixing piece (46) are fixedly connected to the first connecting plate (48), the first pipe body (41) is fixedly connected to the first fixing piece (44), the first connecting piece (45) is fixedly connected to the tail end of the first pipe body (41), the first connecting piece (45) is fixedly connected to the second fixing piece (46), the first funnel (42) is fixedly connected to the first pipe body (41), and the first funnel (42) is communicated with the inside of the first pipe body (41), the first motor (47) is fixedly connected to the first connecting piece (45), the output end of the first motor (47) is fixedly connected with a first rotating rod, and the first rotating rod is positioned in the first pipe body (41);

first rabbling mechanism (2) include first cylinder body (21), mouth type link frame (22), discharge mechanism (7) and second puddler (8), mouth type link frame (22) fixed connection is on first cylinder body (21), second puddler (8) are rotated and are connected in first cylinder body (21), the quantity of second puddler (8) is two, discharge mechanism (7) are connected on first cylinder body (21).

6. A concrete mixing device according to the claim, characterized in that the discharging mechanism (7) comprises two first rods (71), two second baffle plates (72), two first bearings (73) and a handle (74), the two first bearings (73) are fixedly connected to the discharge port of the first cylinder (21), the first rods (71) are connected to the two first bearings (73) in a rolling manner, the second baffle plates (72) are fixedly connected to the first rods (71), and the handle (74) is fixedly connected to one end of the first rods (71).

7. A concrete mixing device as claimed in claim 5, wherein the second stirring rod (8) comprises a first rotating rod (81), a first connecting rod (82), a stirring blade (83), a second fixing member (84) and a first driven gear (85), the second fixing member (84) is fixedly connected to the first rotating rod (81), the first connecting rod (82) is fixedly connected to the second fixing member (84), the stirring blade (83) is detachably connected to the first connecting rod (82), and the first driven gear (85) is fixedly connected to one end of the first rotating rod (81);

8. a concrete mixing device according to claim 5, wherein the power mechanism (5) comprises a second motor (51), a driving wheel (52), a first driven wheel (53), a second driven gear (54) and a housing (55), the housing (55) is fixedly connected to the bracket (1), the second motor (51) is fixedly connected to the bracket (1), the driving wheel (52) is fixedly connected to an output shaft of the second motor (51), the driving wheel (52) and the first driven wheel (53) are connected through a belt, and the first driven gear (85) is meshed with the second driven gear (54).

Technical Field

The invention relates to the technical field of concrete additives, in particular to a mixing process and a mixing device for a concrete additive and concrete.

Background

With the increasing of the traffic flow of high-grade highways, the increasing heavy load of transport vehicles and the canalization of the traffic flow, rutting becomes the main form of road surface damage, and the comfort of road driving and the service life of roads are seriously influenced. The research and application of high-performance modified asphalt become urgent requirements for the current pavement construction.

At present, the method for improving the stiffness modulus of the asphalt mixture to prevent the rutting is an effective means. The technology mainly adopts several methods of using high-viscosity hard asphalt cement, adding natural asphalt or polyolefin additive into asphalt mixture, etc. Because the polyolefin additive has the advantages of simple construction process, convenient use, obvious improvement on the high-temperature performance of the mixture and the like, the application of the polyolefin additive to the base course and the bottom layer of the highway pavement is continuously and stably increased in recent years. But it has certain limitations, mainly expressed in that (1) the polymer has poor aging resistance to oxygen, ozone and ultraviolet light; (2) the high-temperature performance of the asphalt mixture is improved, and the low-temperature performance of the asphalt mixture is reduced. Although the prior art can improve the anti-rutting performance of the asphalt concrete to a certain extent, the problems of low temperature performance reduction and insufficient ageing resistance of the asphalt concrete exist.

Disclosure of Invention

Aiming at the defects of the prior art, the invention aims to provide a mixing process and a mixing device for a concrete additive and concrete, and the mixing process and the mixing device improve the track resistance, the low-temperature performance and the ageing resistance of asphalt concrete.

The purpose of the invention can be realized by the following technical scheme:

the concrete additive comprises the following raw material components in parts by weight: polyethylene: 100 parts of (A); styrene-butadiene rubber: 10-30 parts; silane additive: 10-30 parts; mica powder: 2-8 parts; antioxidant: 1-4 parts.

The concrete mixing process is characterized by comprising the following steps:

s1: adding mica powder and a silane additive into an organic solvent, carrying out surface modification reaction under the condition of heating reflux, cooling, filtering, washing and drying to obtain treated mica powder;

s2: uniformly mixing polyethylene, styrene butadiene rubber, a silane additive, the treated mica powder and an antioxidant, and then performing blending extrusion and granulation by an extruder to obtain the high-modulus asphalt concrete additive.

In a preferred embodiment of the present invention, the organic solvent is one of xylene, toluene, cyclohexanone, chlorobenzene, and pyridine.

In a preferred embodiment of the present invention, in step S1, the drying temperature is 90 ℃ to 110 ℃ and the drying time is 2 to 3 hours.

A concrete mixing device comprises a support, a first stirring mechanism, a feeding hopper, a second stirring mechanism and a power mechanism, wherein the first stirring mechanism is fixedly connected to the support;

the feeding hopper comprises a mouth-shaped frame, a bucket-shaped piece, a first baffle, a first fixing piece, a first discharging hole and a first fixing plate, the mouth-shaped frame is fixedly connected to the top end of the bucket-shaped piece, the first discharging hole is fixedly connected to the bottom end of the bucket-shaped piece, the first fixing plate is fixedly connected to the bucket-shaped piece, a first groove is formed in the first fixing plate, the first baffle is slidably connected in the first groove, the first baffle is located right below the first discharging hole, the first fixing piece is fixedly connected to the first fixing plate, and rollers are arranged on the first fixing piece;

the second stirring mechanism comprises a first pipe body, a first funnel, a first discharge hole, a first fixing piece, a first connecting piece, a second fixing piece, a first motor and a first connecting plate, the first connecting plate is fixedly connected to the mouth-shaped frame, the first fixing piece and the second fixing piece are fixedly connected to the first connecting plate, the first pipe body is fixedly connected to the first fixing piece, the first connecting piece is fixedly connected to the tail end of the first pipe body, the first connecting piece is fixedly connected to the second fixing piece, the first funnel is fixedly connected to the first pipe body, the first funnel is communicated with the interior of the first pipe body, the first motor is fixedly connected to the first connecting piece, a first rotating rod is fixedly connected to the output end of the first motor, and the first rotating rod is located in the first pipe body;

first rabbling mechanism includes first cylinder body, mouth type link frame, discharge mechanism and second puddler, mouth type link frame fixed connection is on first cylinder body, the second puddler rotates to be connected in first cylinder body, the quantity of second puddler is two, discharge mechanism connects on first cylinder body.

As a preferable scheme of the invention, the discharging mechanism comprises two first rods, two second baffles, two first bearings and a handle, the two first bearings are fixedly connected to a discharging port of the first cylinder body, the first rods are connected to the two first bearings in a rolling manner, the second baffles are fixedly connected to the first rods, and the handle is fixedly connected to one end of the first rods.

As a preferable scheme of the present invention, the second stirring rod includes a first rotating rod, a first connecting rod, a stirring blade, a second fixing member, and a first driven gear, the second fixing member is fixedly connected to the first rotating rod, the first connecting rod is fixedly connected to the second fixing member, the stirring blade is detachably connected to the first connecting rod, and the first driven gear is fixedly connected to one end of the first rotating rod;

as a preferable scheme of the present invention, the power mechanism includes a second motor, a driving wheel, a first driven wheel, a second driven gear, and a housing, the housing is fixedly connected to the bracket, the second motor is fixedly connected to the bracket, the driving wheel is fixedly connected to an output shaft of the second motor, the driving wheel and the first driven wheel are connected by a belt, and the first driven gear is engaged with the second driven gear.

The invention has the beneficial effects that:

the concrete mixing device is provided with a first stirring mechanism, a feeding hopper, a second stirring mechanism and a power mechanism, wherein the first stirring mechanism is used for mixing a concrete additive and concrete, the second stirring mechanism is used for mixing the concrete additive, the power mechanism is used for providing power for the second stirring mechanism, the raw materials of the mixed concrete additive pass through the second stirring mechanism, the concrete raw materials are added through the feeding hopper, and the concrete raw materials and the mixed concrete additive are fully mixed in the first stirring mechanism and are discharged by a discharging mechanism; a second motor of the power mechanism works to drive the driving wheel to rotate, the driving wheel drives the first driven wheel to rotate, the first driven wheel drives the second driven gear to rotate through the internal gear, the second driven gear drives the first driven gear to rotate, the first driven gear drives the second stirring rod to rotate, and the first rotating rod drives the stirring blades on the first connecting rod to rotate at a constant speed so as to realize uniform stirring; according to the invention, through twice stirring, the concrete additive is fully stirred in the second stirring mechanism, so that the raw materials of the concrete additive are fully mixed, the use effect of the concrete additive is improved, the concrete additive and the concrete are fully stirred in the first stirring mechanism, the concrete raw materials and the concrete additive are fully mixed, and the anti-rutting performance, the low-temperature performance and the anti-aging performance of the asphalt concrete are improved; the invention improves the anti-rutting performance, low-temperature performance and anti-aging performance of the asphalt concrete.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, 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 perspective view of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a schematic view of the feed hopper;

FIG. 5 is a first schematic structural view of a second stirring mechanism;

FIG. 6 is a second schematic structural view of a second stirring mechanism;

FIG. 7 is a schematic structural view of a discharging mechanism;

FIG. 8 is a bottom view of the discharge mechanism;

fig. 9 is a schematic structural view of the second agitating bar.

Description of the symbols: 1. a support; 2. a first stirring mechanism; 3. a feed hopper; 4. a second stirring mechanism; 5. a power mechanism; 7. a discharging mechanism; 8. a second stirring rod; 21. a first cylinder; 22. a mouth shape connecting frame; 31. a mouth-shaped frame; 32. a bucket-shaped member; 33. a first baffle plate; 34. a first fixing member; 35. a first discharge port; 36. a first fixing plate; 41. a first pipe body; 42. a first hopper; 43. a first discharge port; 44. a first fixing member; 45. a first connecting member; 46. a second fixing member; 47. a first motor; 48. a first connecting plate; 51. a second motor; 52. a driving wheel; 53. a driving wheel; 54. a moving gear; 55. a housing; 71. a first lever; 72. a second baffle; 73. a first bearing; 74. a handle; 81. a first rotating lever; 82. a first connecting rod; 83. stirring blades; 84. a second fixing member; 85. and a moving gear.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.

As shown in the figure, the concrete additive comprises the following raw material components in parts by weight: polyethylene: 100 parts of (A); styrene-butadiene rubber: 10-30 parts; silane additive: 10-30 parts; mica powder: 2-8 parts; antioxidant: 1-4 parts.

S1: adding mica powder and a silane additive into an organic solvent, carrying out surface modification reaction under the condition of heating reflux, cooling, filtering, washing and drying to obtain treated mica powder;

s2: uniformly mixing polyethylene, styrene butadiene rubber, a silane additive, the treated mica powder and an antioxidant, and then performing blending extrusion and granulation by an extruder to obtain the high-modulus asphalt concrete additive.

The organic solvent is one of xylene, toluene, cyclohexanone, chlorobenzene and pyridine. In step S1, the drying temperature is 90-110 ℃ and the drying time is 2-3 h.

A concrete mixing device comprises a support 1, a first stirring mechanism 2, a feed hopper 3, a second stirring mechanism 4 and a power mechanism 5, wherein the first stirring mechanism 2 is fixedly connected to the support 1, the feed hopper 3 is fixedly connected to the first stirring mechanism 2, the second stirring mechanism 4 is fixedly connected to the feed hopper 3, and the power mechanism 5 is fixedly connected to the support 1;

the feeding hopper 3 comprises a mouth-shaped frame 31, a hopper-shaped part 32, a first baffle 33, a first fixing part 34, a first discharge hole 35 and a first fixing plate 36, the mouth-shaped frame 31 is fixedly connected to the top end of the hopper-shaped part 32, the first discharge hole 35 is fixedly connected to the bottom end of the hopper-shaped part 32, the first fixing plate 36 is fixedly connected to the hopper-shaped part 32, a first groove is formed in the first fixing plate 36, the first baffle 33 is slidably connected in the first groove, the first baffle 33 is located right below the first discharge hole 35, the first fixing part 34 is fixedly connected to the first fixing plate 36, and rollers are arranged on the first fixing part 34;

the second stirring mechanism 4 comprises a first pipe body 41, a first hopper 42, a first discharge hole 43, a first fixing piece 44, a first connecting piece 45, a second fixing piece 46, a first motor 47 and a first connecting plate 48, wherein the first connecting plate 48 is fixedly connected to the mouth-shaped frame 31, the first fixing piece 44 and the second fixing piece 46 are fixedly connected to the first connecting plate 48, the first pipe body 41 is fixedly connected to the first fixing piece 44, the first connecting piece 45 is fixedly connected to the tail end of the first pipe body 41, the first connecting piece 45 is fixedly connected to the second fixing piece 46, the first hopper 42 is fixedly connected to the first pipe body 41, the first hopper 42 is communicated with the inside of the first pipe body 41, the first motor 47 is fixedly connected to the first connecting piece 45, a first rotating rod is fixedly connected to the output end of the first motor 47, and the first rotating rod is located in the first pipe body 41;

first rabbling mechanism 2 includes first cylinder body 21, mouth type link frame 22, discharge mechanism 7 and second puddler 8, and mouth type link frame 22 fixed connection is on first cylinder body 21, and second puddler 8 rotates to be connected in first cylinder body 21, and the quantity of second puddler 8 is two, and discharge mechanism 7 is connected on first cylinder body 21.

The discharging mechanism 7 comprises a first rod 71, a second baffle 72, first bearings 73 and a handle 74, the number of the first bearings 73 is two, the two first bearings 73 are fixedly connected to the discharging port of the first cylinder 21, the first rod 71 is connected to the two first bearings 73 in a rolling manner, the second baffle 72 is fixedly connected to the first rod 71, and the handle 74 is fixedly connected to one end of the first rod 71. The first stirring mechanism 2 is used for mixing the concrete additive and the concrete, the second stirring mechanism 4 is used for stirring the mixed concrete additive, the power mechanism 5 is used for providing power for the second stirring mechanism 4, the mixed concrete additive raw material passes through the second stirring mechanism 4, the concrete raw material is added through the feed hopper 3, the concrete raw material and the mixed concrete additive are fully mixed in the first stirring mechanism 2, and the mixture is discharged by the discharging mechanism 7; according to the invention, through two times of stirring, the concrete additive is fully stirred in the second stirring mechanism 4, so that the raw materials of the concrete additive are fully mixed, the use effect of the concrete additive is improved, the concrete additive and the concrete are fully stirred in the first stirring mechanism 2, the concrete raw materials and the concrete additive are fully mixed, and the anti-rutting performance, the low-temperature performance and the anti-aging performance of the asphalt concrete are improved.

The second stirring rod 8 comprises a first rotating rod 81, a first connecting rod 82, a stirring blade 83, a second fixing piece 84 and a first driven gear 85, the second fixing piece 84 is fixedly connected to the first rotating rod 81, the first connecting rod 82 is fixedly connected to the second fixing piece 84, the stirring blade 83 is detachably connected to the first connecting rod 82, and the first driven gear 85 is fixedly connected to one end of the first rotating rod 81;

the power mechanism 5 comprises a second motor 51, a driving wheel 52, a first driven wheel 53, a second driven gear 54 and a shell 55, wherein the shell 55 is fixedly connected to the support 1, the second motor 51 is fixedly connected to the support 1, the driving wheel 52 is fixedly connected to an output shaft of the second motor 51, the driving wheel 52 is connected with the first driven wheel 53 through a belt, and the first driven gear 85 is meshed with the second driven gear 54. The second motor 51 of the power mechanism 5 operates to drive the driving wheel 52 to rotate, the driving wheel 52 drives the first driven wheel 53 to rotate, the first driven wheel 53 drives the second driven gear 54 to rotate through the internal gear, the second driven gear 54 drives the first driven gear 85 to rotate, the first driven gear 85 drives the second stirring rod 8 to rotate, and the first rotating rod 81 drives the stirring blade 83 on the first connecting rod 82 to rotate at a constant speed, so that uniform stirring is realized.

The concrete mixer is provided with a first stirring mechanism 2, a feed hopper 3, a second stirring mechanism 4 and a power mechanism 5, wherein the first stirring mechanism 2 is used for mixing concrete additives and concrete, the second stirring mechanism 4 is used for stirring the mixed concrete additives, the power mechanism 5 is used for providing power for the second stirring mechanism 4, the mixed concrete additive raw materials pass through the second stirring mechanism 4, the concrete raw materials are added through the feed hopper 3, and the concrete raw materials and the mixed concrete additives are fully mixed in the first stirring mechanism 2 and discharged by a discharging mechanism 7; the second motor 51 of the power mechanism 5 works to drive the driving wheel 52 to rotate, the driving wheel 52 drives the first driven wheel 53 to rotate, the first driven wheel 53 drives the second driven gear 54 to rotate through the internal gear, the second driven gear 54 drives the first driven gear 85 to rotate, the first driven gear 85 drives the second stirring rod 8 to rotate, and the first rotating rod 81 drives the stirring blade 83 on the first connecting rod 82 to rotate at a constant speed so as to realize uniform stirring; according to the invention, through twice stirring, the concrete additive is fully stirred in the second stirring mechanism 4, so that the raw materials of the concrete additive are fully mixed, the use effect of the concrete additive is improved, the concrete additive and the concrete are fully stirred in the first stirring mechanism 2, the concrete raw materials and the concrete additive are fully mixed, and the anti-rutting performance, the low-temperature performance and the anti-aging performance of the asphalt concrete are improved; the invention improves the anti-rutting performance, low-temperature performance and anti-aging performance of the asphalt concrete.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential 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, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.