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CN-121989361-A - Preparation device and preparation method of non-segregation high-strength light concrete

CN121989361ACN 121989361 ACN121989361 ACN 121989361ACN-121989361-A

Abstract

The invention provides a preparation device and a preparation method of non-segregation high-strength lightweight concrete, wherein the preparation device comprises a mixing drum, a mixing mechanism for stirring raw materials in the mixing drum, and a vibrating mechanism, wherein the vibrating mechanism for removing bubbles in the concrete is arranged at the bottom end of the mixing drum, a premixing mechanism for reducing the mixing time of the concrete is arranged at the top end of the mixing drum, a supporting rod and the side wall of an adjusting rod are rotatably connected with an adjusting mechanism for driving the adjusting rod to rotate, a lifting mechanism for driving the rack and the adjusting mechanism to move is arranged in the fixing drum, and a water inlet mechanism is arranged on the lifting mechanism and the side wall of the fixing drum.

Inventors

  • LIU SHUBO
  • WU KEYAN
  • ZHU XIAOBO
  • Lai Zikun
  • SHAO FANGZHOU
  • JIANG KENIAN
  • NONG LIHUA
  • GAO LIYUAN

Assignees

  • 宁波智领交通工程检测有限公司

Dates

Publication Date
20260508
Application Date
20260211

Claims (10)

  1. 1. The utility model provides a preparation facilities of non-segregation high strength lightweight concrete which characterized in that includes: The mixing drum (1), the inside of mixing drum (1) carries out mixing mechanism (2) of stirring to the raw materials, mixing mechanism (2) include fixed axle (21), the inside of mixing drum (1) rotates to be connected fixed axle (21), puddler (24), bracing piece (25), regulation pole (26) and rib (27), the lateral wall of fixed axle (21) is fixed connection respectively bracing piece (25) and lateral wall are curved puddler (24), the one end rotation of bracing piece (25) is connected regulation pole (26), install respectively in lateral wall and the bottom of regulation pole (26) rib (27), and many rib (27) sliding connection respectively inside wall and the inside bottom surface of mixing drum (1); The mixing device comprises a vibrating mechanism (3), wherein the vibrating mechanism (3) for removing air bubbles in concrete is arranged at the bottom end of a mixing cylinder (1), a premixing mechanism (4) for reducing the mixing time of the concrete is arranged at the top end of the mixing cylinder (1), the premixing mechanism (4) comprises a fixed cylinder (41), the top end of the mixing cylinder (1) is fixedly connected with the fixed cylinder (41), a feeding funnel (42) is arranged in the fixed cylinder (41), a fixed plate (43) with a funnel-shaped side wall is fixedly connected with the inside of the fixed cylinder (41), a magnetic ring (49) is connected in a rotating manner in the fixed plate (43), the magnetic ring (49) is connected with the inside of a magnetic rod (46) in a rotating manner and adsorbs a rotating rod (44), a fan-shaped rotating plate (45) is arranged on the side wall of the rotating rod (44), one end of the rotating plate (45) is in contact with the side wall of the rotating rod (44), one end of the rotating rod (44) is fixedly connected with a third gear (47), and the third gear (47) is meshed with a rack (48); The side wall rotation of bracing piece (25) with adjust pole (26) is connected and is used for driving adjust pole (26) pivoted adjustment mechanism (6), the internally mounted of fixed section of thick bamboo (41) drives rack (48) with elevating system (5) of adjustment mechanism (6) motion, just elevating system (5) with water inlet mechanism (7) are installed to the lateral wall of fixed section of thick bamboo (41).
  2. 2. The preparation device of the non-segregation high-strength lightweight concrete according to claim 1, wherein the mixing mechanism (2) further comprises a gearbox (22), the gearbox (22) is mounted at the bottom end of the mixing drum (1), and an output shaft of the gearbox (22) is connected with the fixed shaft (21) and the driving motor (23).
  3. 3. The preparation device of the non-segregation high-strength lightweight concrete according to claim 2, wherein the vibration mechanism (3) comprises a leather collar sleeve shaft (31), the side walls of the fixed shaft (21), the connecting shaft (33) and the vibration shaft (35) are fixedly connected with the leather collar sleeve shaft (31), the leather collar sleeve shafts (31) are connected through leather collars (32), the side walls of the connecting shaft (33) are respectively and fixedly connected with a first gear (37) and a second gear (38) which are meshed with each other, two ends of the vibration shaft (35) are fixedly connected with eccentric blocks (36), the eccentric blocks (36) are rotationally connected with the inside of a vibration box (34), and the vibration box (34) is fixedly connected with the bottom surface of the mixing drum (1).
  4. 4. A device for preparing non-segregation high-strength lightweight concrete according to claim 3, characterized in that the first gear (37) and the second gear (38) are perpendicular to each other, and the diameter of the first gear (37) is much smaller than the diameter of the second gear (38).
  5. 5. The device for preparing the non-segregation high-strength lightweight concrete according to claim 4, wherein the lifting mechanism (5) comprises a storage cylinder (52), the top end of the fixed shaft (21) is fixedly connected with the storage cylinder (52), the inside of the storage cylinder (52) is slidably connected with a compression block (53) and a compression plug (54), the compression block (53) is fixedly connected with the compression plug (54), the top end of the fixed cylinder (41) is fixedly connected with a hydraulic rod (51), and the bottom end of the hydraulic rod (51) is rotatably connected with the inside of the compression block (53).
  6. 6. The device for preparing the non-segregation high-strength lightweight concrete according to claim 5, wherein the inside of the storage cylinder (52) is rotatably connected with the rotating rod (44), the side wall of the storage cylinder (52) is fixedly connected with the magnetic rod (46), the inside of the storage cylinder (52) is slidably connected with the racks (48), and the side wall of the compression block (53) is fixedly connected with a plurality of racks (48) at equal intervals.
  7. 7. The preparation device of the non-segregation high-strength lightweight concrete according to claim 6, wherein the adjusting mechanism (6) comprises a first connecting rod (61) and a second connecting rod (62), the second connecting rod (62) is rotatably connected with the adjusting rod (26), the first connecting rod (61) is fixedly connected with the supporting rod (25), the first connecting rod (61) and a piston (66) are slidably connected with the inside of the second connecting rod (62), one end of the first connecting rod (61) is fixedly connected with the piston (66), the piston (66) and the compression plug (54) are connected through an elastic rope (64), a fixed pulley (65) is arranged at a turning position of the elastic rope (64), the first connecting rod (61) is communicated with the top end of the fixed shaft (21) through a corrugated pipe (63), and the elastic rope (64) is slidably connected with the inside of the corrugated pipe (63).
  8. 8. The preparation device of the non-segregation high-strength lightweight concrete according to claim 7, wherein the water inlet mechanism (7) comprises a water pipe (71), the bottom end of the storage cylinder (52) is fixedly connected with the water pipe (71), a plurality of spray heads (72) are obliquely arranged at the bottom end of the water pipe (71), the side wall of the water pipe (71) is fixedly connected with a fixed pipe (73), the fixed pipe (73) is in sliding connection with the compression plug (53) and the compression block (53), a support sleeve (75) which is annular is fixedly connected inside the fixed cylinder (41), the top end of the support sleeve (75) is fixedly connected with a water inlet pipe (77), the inside of the support sleeve (75) is rotatably connected with a connecting ring (74) which is annular, the side wall of the connecting ring (74) is fixedly connected with the fixed pipe (73), a groove (76) is formed inside the connecting ring (74), and the groove (76) is communicated with the fixed pipe (73).
  9. 9. The preparation device of the non-segregation high-strength lightweight concrete according to claim 8, wherein a discharging funnel (11) is arranged on the side wall of the mixing drum (1), a baffle plate (12) is clamped on the side wall of the discharging funnel (11), the baffle plate (12) is rotationally connected with the side wall of the mixing drum (1), a fastener (13) is rotationally connected with the side wall of the mixing drum (1), and the fastener (13) is clamped on the baffle plate (12).
  10. 10. The apparatus for preparing non-segregation high-strength lightweight concrete according to claim 9, comprising a preparation method of non-segregation high-strength lightweight concrete, comprising the steps of: The method comprises the steps of preparing high-strength lightweight aggregate, namely 400-500 parts of PII52.5 cement, 90-120 parts of S95 slag powder, 90-120 parts of SF90 silica fume, 160-175 parts of hollow glass beads, 18-23 parts of nano silicon dioxide, 4.5-5.5 parts of multi-walled carbon nanotubes, 115-125 parts of water, 11-18 parts of polycarboxylate water reducer, 0.15-0.3 part of polydimethylsiloxane, externally connecting a power supply to the device, opening a mixing mechanism (2) and the vibrating mechanism (3), sequentially pouring cement, slag powder, silica fume and hollow glass beads into the pre-mixing mechanism (4) to be preliminarily mixed, pouring nano silicon dioxide and multi-arm carbon nanotubes into the pre-mixing mechanism (4) to be preliminarily mixed, adding the polycarboxylate water reducer into the mixing barrel (1) after 2 to 4 minutes, simultaneously opening the mixing mechanism (4) to be uniformly mixed, pouring the mixture into the pre-mixing barrel (1) to be uniformly mixed, pouring the slurry into the slurry (7) to be uniformly, pouring the slurry into the slurry (1) to be mixed into the slurry (7) to be fully mixed, and pouring the slurry into the slurry to be mixed into the slurry, and the slurry to be mixed into the slurry (5 after the slurry to be mixed into the slurry (1), the size of the fine high-strength lightweight aggregate is 0.075 to 4.75mm, and the size of the coarse high-strength lightweight aggregate is 4.75 to 16mm; Preparing high-strength lightweight concrete, namely, 150-200 parts of PII52.5 cement, 30-45 parts of S95 slag powder, 35-50 parts of SF90 silica fume, 45-50 parts of hollow glass beads, 5-8 parts of nano silicon dioxide, 1.0-2.0 parts of multi-wall carbon nano tubes, 170-230 parts of fine high-strength lightweight aggregate, 300-400 parts of coarse high-strength lightweight aggregate, 65-75 parts of water, 5-7 parts of polycarboxylate water reducer and 0.1-0.2 part of polydimethylsiloxane; the device is externally connected with a power supply, a mixing mechanism (2) and a vibrating mechanism (3) are opened, cement, slag powder, silica fume and hollow glass beads are sequentially poured into the premixing mechanism (4) to be primarily mixed and poured into the mixing cylinder (1), nano silicon dioxide and multi-arm carbon nano tubes are then poured into the premixing mechanism (4) to be primarily mixed, when raw materials in the mixing cylinder (1) are mixed for 2 to 4 minutes, a polycarboxylate water reducer is added into the mixing cylinder (1), the premixing mechanism (4) is opened at the same time, so that the primarily mixed materials uniformly fall into the mixing cylinder (1), the water inlet mechanism (7) adds water into the mixing cylinder (1), the raw materials in the mixing cylinder (1) are mixed for 5 to 7 minutes to prepare slurry, in the process of preparing slurry, coarse and fine aggregates are poured into the premixing mechanism (4) to be tiled and premixed lightly, the principle of preparing slurry is performed after the mixing cylinder (1) is prepared into slurry, the premixing mechanism (4) enables the coarse and fine high-strength lightweight aggregates to drop downwards and uniformly enter the mixing drum (1); Thirdly, after the raw materials in the mixing drum (1) are mixed for 1 to 2 minutes, adding polydimethylsiloxane, continuing to mix for 2 minutes to prepare high-strength light concrete, opening the discharging hopper (11) to pour out the concrete, simultaneously driving the adjusting rod (26) and the rib (27) to rotate by controlling the telescopic action of the hydraulic rod (51), scraping the concrete on the inner side wall and the inner bottom surface of the mixing drum (1), and keeping the interior of the mixing drum (1) clean; and fourthly, after the mixing drum (1) is used, spraying water into the mixing drum (1) through the water inlet mechanism (7), and simultaneously, rotating the mixing mechanism (2) to clean the inside of the mixing drum (1).

Description

Preparation device and preparation method of non-segregation high-strength light concrete Technical Field The invention relates to the technical field of concrete preparation, in particular to a preparation device and a preparation method of non-segregation high-strength light concrete. Background Modern concrete has been used as an artificial building material for over 170 years, but with the continuous development and innovation of building technology, high-rise buildings rapidly develop, and bridge spans are also becoming larger and larger. The weight of common concrete is increasingly prominent due to the overlarge specific gravity of the total load of the building, and the requirements on the performances of light weight, high strength, durability and the like of the concrete are higher and higher, so that the development of the high-strength light weight concrete becomes necessary. The lightweight high-strength concrete has the advantages of high strength, light weight, good durability, no alkali aggregate reaction, good volume stability, good heat preservation and insulation performance and the like, has unique advantages in the fields of high-rise and super high-rise building structures, large-span bridges, urban overpasses, ocean engineering and the like, and has wide application prospect. At present, shale ceramsite and fly ash ceramsite replace natural broken stone and pebble as lightweight aggregate, which are conventional technical paths for preparing lightweight aggregate concrete, and the technical paths are mature and common. However, the ceramsite used as aggregate for preparing light high-strength concrete has the problems that the cylinder pressure of the ceramsite is limited, the strength of the prepared concrete is limited within 15MPa, the harmful pore defects in the ceramsite are common, so that the mechanical property of the concrete is influenced, the high-strength ceramsite has higher density, when the low-density concrete is prepared, an obvious interface area exists between the ceramsite and hydration products of cement paste, the phenomena of floating and sinking easily occur, and the homogenization requirement of a high-strength system is difficult to realize. Therefore, it is urgent to coordinate the balance between the concrete strength and the volume weight, ensure the homogenization of the concrete system while reducing the volume weight, reduce the harmful gaps in the concrete, and further improve the concrete strength. In the process of preparing high-strength light concrete, in order to lighten the weight of the concrete and avoid the floating and sinking sites of aggregates, hollow glass beads, nano silicon dioxide and other materials are added into the concrete to cause excessive types of concrete raw materials, when the concrete is prepared, different materials are added into a mixing drum in batches due to excessive types of raw materials, so that the mixing time of various materials is long, the production efficiency is reduced, and meanwhile, the partially prepared concrete is adsorbed on the side wall of the mixing drum to cause the waste of the concrete and is not beneficial to cleaning the inside of the mixing drum. Therefore, there is a need to provide a new preparation device and preparation method for non-segregation high-strength lightweight concrete, which solve the above technical problems. Disclosure of Invention The invention solves the technical problem of providing a preparation device and a preparation method for non-segregation high-strength lightweight concrete, which can accelerate the production efficiency of concrete and avoid the adsorption of a large amount of concrete in a mixing drum. In order to solve the technical problems, the preparation device of the non-segregation high-strength lightweight concrete comprises a mixing drum, wherein a mixing mechanism for stirring raw materials in the mixing drum comprises a fixed shaft, the inside of the mixing drum is rotationally connected with the fixed shaft, a stirring rod, a supporting rod, an adjusting rod and ribs, the side wall of the fixed shaft is respectively and fixedly connected with the supporting rod and the stirring rod with arc-shaped side wall, one end of the supporting rod is rotationally connected with the adjusting rod, the ribs are respectively arranged at the side wall and the bottom end of the adjusting rod, and a plurality of ribs are respectively and slidingly connected with the inner side wall and the inner bottom surface of the mixing drum; the vibrating mechanism is arranged at the bottom end of the mixing cylinder, the premixing mechanism for reducing the mixing time of the concrete is arranged at the top end of the mixing cylinder, the premixing mechanism comprises a fixed cylinder, the top end of the mixing cylinder is fixedly connected with the fixed cylinder, a feeding funnel is arranged in the fixed cylinder, the inner fixedly connected side wall of the fixed cylinder