CN119550475A - A concrete mixing device for prefabricated building production - Google Patents
A concrete mixing device for prefabricated building production Download PDFInfo
- Publication number
- CN119550475A CN119550475A CN202510097268.XA CN202510097268A CN119550475A CN 119550475 A CN119550475 A CN 119550475A CN 202510097268 A CN202510097268 A CN 202510097268A CN 119550475 A CN119550475 A CN 119550475A
- Authority
- CN
- China
- Prior art keywords
- stirring
- rotating shaft
- tank body
- spiral conveying
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0818—Charging or discharging gates or chutes; Sealing means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
- B28C7/10—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of rotary members, e.g. inclinable screws
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention relates to the technical field of concrete stirring equipment, in particular to a concrete stirring device for assembled building production, which comprises a tank body, wherein a conveying mechanism is arranged in the tank body and comprises a rotating shaft, the rotating shaft extends along the up-down direction, a plurality of stirring mechanisms are uniformly arranged in the circumferential direction of the rotating shaft, a spiral conveying plate is arranged on the rotating shaft and spirally wound on the rotating shaft along the up-down direction, a guard plate extending along the up-down direction is arranged at the edge of the spiral conveying plate, the size of the guard plate in the up-down direction is gradually reduced from bottom to top, the rotation of the rotating shaft enables the spiral conveying plate to convey aggregate at the bottom of the tank body to the upper side of the tank body, simultaneously, small particle aggregate is thrown out from the guard plate at the bottom, large particle aggregate is thrown out from the guard plate at the upper side, and the stirring mechanism is used for stirring aggregate thrown out by the conveying mechanism, so that the large particle aggregate is prevented from settling to the bottom of the tank body, and the concrete stirring effect is improved.
Description
Technical Field
The invention relates to the technical field of concrete stirring equipment, in particular to a concrete stirring device for assembly type building production.
Background
When concrete is stirred, a concrete stirring device is generally used for stirring. However, when the aggregate is poured into the stirring device, the aggregate is deposited at the bottom of the stirring device due to the sedimentation of the aggregate. At present, the stirrer generally rotates along the vertical axial direction, so that aggregate at the bottom cannot be turned upwards when concrete is stirred, and the stirring effect of the concrete is poor.
Disclosure of Invention
Accordingly, it is necessary to provide a concrete mixer for use in the production of fabricated buildings, which solves the technical problem that the conventional concrete mixer is poor in mixing effect.
The above purpose is achieved by the following technical scheme:
The utility model provides an assembled concrete mixing plant for building production, includes the jar body, the inside of jar body is equipped with conveying mechanism, conveying mechanism includes the axis of rotation, the axis of rotation extends along upper and lower direction, the circumference of axis of rotation evenly is equipped with a plurality of rabbling mechanisms, be equipped with the screw conveying board in the axis of rotation, the screw conveying board is spirally wound around along upper and lower direction and is established in the axis of rotation, the edge of screw conveying board is equipped with the backplate that extends along upper and lower direction, the size of backplate upper and lower direction is by supreme gradual reduction down, the rotation of axis of rotation makes the screw conveying board can be with the aggregate of jar body bottom to the top of jar body carry, makes the backplate of granule aggregate follow the below simultaneously throw away, and big granule aggregate throws away from the backplate of top, rabbling mechanism is used for stirring the aggregate that conveying mechanism throwed away.
Further, the spiral conveying plate is obliquely arranged on the rotating shaft, and one side, far away from the rotating shaft, of the spiral conveying plate is higher than one side, close to the rotating shaft, of the spiral conveying plate.
Further, the spiral conveying plate is vertically arranged on the rotating shaft.
Further, the maximum diameters of the screw conveying plates are equal in the up-down direction.
Further, the maximum diameter of the spiral conveying plate gradually decreases from bottom to top.
Further, the bottom of screw conveying board is equipped with the charge-in board, the charge-in board level sets up.
Further, the stirring mechanism comprises a first stirring shaft and a second stirring shaft which are arranged inside the tank body, the first stirring shaft and the second stirring shaft extend along the vertical direction, the first stirring shaft and the second stirring shaft synchronously rotate reversely, a plurality of first stirring blades distributed along the vertical direction are arranged on the first stirring shaft, a plurality of second stirring blades distributed along the vertical direction are arranged on the second stirring shaft, and the first stirring blades and the second stirring blades are inclined plates and are identical in size.
Further, the first stirring blade and the second stirring blade are opposite in inclination direction, and the first stirring blade and the second stirring blade are arranged in a staggered manner.
Further, a first gear is arranged on the first stirring shaft, a second gear is arranged on the second stirring shaft, the first gear is meshed with the second gear, a first driving mechanism and a second driving mechanism are arranged on the tank body, the first driving mechanism is used for driving the first stirring shaft to rotate, and the second driving mechanism is used for driving the rotating shaft to rotate.
Further, a feed inlet is arranged above the tank body, a discharge outlet is arranged below the tank body, and the feed inlet and the discharge outlet are staggered in the circumferential direction of the tank body.
The beneficial effects of the invention are as follows:
According to the concrete stirring device for the assembled building production, aggregate deposited at the bottom of the tank body is conveyed upwards by the spiral conveying plate, and the size of the guard plate in the up-down direction is gradually reduced from bottom to top, so that gaps formed by the guard plate below and the spiral conveying plate are small, gaps formed by the guard plate above and the spiral conveying plate are large, small-particle aggregate can be thrown out from the lower side of the tank body under the centrifugal force of the spiral conveying plate in the conveying process and is stirred by the stirring mechanism, large-particle aggregate is thrown out from the upper side of the tank body under the centrifugal force of the spiral conveying plate, the stirring time of the stirring mechanism is longer in the descending process, and therefore after the small-particle aggregate is uniformly stirred and mixed to form a suspension state, the large-particle aggregate can fall down, the large-particle aggregate is more easily mixed with the small-particle aggregate forming the suspension state uniformly, meanwhile, the large-particle aggregate is prevented from settling to the bottom of the tank body, and the concrete stirring effect is improved.
Secondly, first stirring vane and second stirring vane cooperation can drive the aggregate and is thrown towards jar internal wall by one side that is close to the axis of rotation, makes the aggregate be scattered at random all around, then mixes the big granule aggregate and the granule aggregate stirring after scattering, further promotes concrete stirring effect.
Drawings
FIG. 1 is a schematic perspective view of a concrete stirring device for producing fabricated buildings according to an embodiment of the present invention;
FIG. 2 is an exploded view of an assembled construction concrete mixer for use in the production of a building according to one embodiment of the present invention;
FIG. 3 is a side view of a concrete mixing device for use in fabricated building production according to one embodiment of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is an enlarged view of the structure at X in FIG. 4;
fig. 6 is a sectional view of B-B in fig. 3.
Wherein:
110. The device comprises a tank body, 111, supporting legs, 113, a discharge hole, 114, a feed hole, 115, a cover plate, 116, a first driving mechanism, 117, a second driving mechanism, 118, a gear bearing plate, 120, a stirring mechanism, 121, a first stirring shaft, 122, a first stirring blade, 123, a first gear, 124, a second gear, 125, a second stirring shaft, 126, a second stirring blade, 130, a feed mechanism, 131, a spiral conveying plate, 132, a guard plate, 133, a rotating shaft, 134 and a feed plate.
Detailed Description
The present invention will be further described in detail below with reference to examples, which are provided to illustrate the objects, technical solutions and advantages of the present invention. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The numbering of components herein, such as "first," "second," etc., is used merely to distinguish between the described objects and does not have any sequential or technical meaning. The term "coupled" as used herein includes both direct and indirect coupling (coupling), unless otherwise indicated. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
As shown in fig. 1 to 6, the concrete mixing device for producing fabricated buildings according to an embodiment of the present invention includes a tank 110, the bottom of the tank 110 is disposed on the ground through a supporting leg 111, a material conveying mechanism 130 is disposed in the tank 110, the material conveying mechanism 130 includes a rotating shaft 133, the rotating shaft 133 extends in an up-down direction, a plurality of mixing mechanisms 120 are uniformly disposed in a circumferential direction of the rotating shaft 133, a spiral conveying plate 131 is disposed on the rotating shaft 133, the spiral conveying plate 131 is spirally disposed on the rotating shaft 133 in the up-down direction, a guard plate 132 extending in the up-down direction is disposed at an edge of the spiral conveying plate 131, a dimension of the guard plate 132 in the up-down direction is gradually reduced from bottom to top, the rotation of the rotating shaft 133 enables the spiral conveying plate 131 to convey aggregate at the bottom of the tank 110 to the top of the tank 110, and simultaneously throws small particles out from the guard plate 132 below, and large particles out from the guard plate 132 above, and the mixing mechanisms 120 are used for mixing aggregate thrown out by the material conveying mechanism 130.
After the arrangement, the aggregate deposited at the bottom of the tank body 110 is conveyed upwards by the screw conveying plate 131, and the size of the guard plate 132 in the up-down direction is gradually reduced from bottom to top, so that the gap formed by the guard plate 132 below and the screw conveying plate 131 is small, the gap formed by the guard plate 132 above and the screw conveying plate 131 is large, small-particle aggregate is thrown out from the lower side of the tank body 110 under the centrifugal force of the screw conveying plate 131 in the conveying process and is stirred by the stirring mechanism 120, large-particle aggregate is thrown out from the upper side of the tank body 110 under the centrifugal force of the screw conveying plate 131, and the stirring time of the stirring mechanism 120 is longer in the descending process, so that after the small-particle aggregate is uniformly stirred and mixed to form a suspension state, the large-particle aggregate can fall down, the large-particle aggregate is more easily uniformly mixed with the small-particle aggregate forming the suspension state, and the large-particle aggregate is prevented from settling to the bottom of the tank body 110, and the concrete stirring effect is improved.
In an embodiment, the screw conveying plate 131 is obliquely disposed on the rotation shaft 133, and a side of the screw conveying plate 131 away from the rotation shaft 133 is higher than a side of the screw conveying plate 131 near the rotation shaft 133.
The screw conveying plates 131 are obliquely arranged, so that aggregates of larger particles on each layer of screw conveying plates 131 are closer to the rotating shaft 133 under the action of gravity, and aggregates of smaller particles on each layer of screw conveying plates 131 can be thrown out through the guard plates 132, so that the aggregates of smaller particles are promoted to be thrown out, the mixing of the aggregates of smaller particles is accelerated, and a suspension state is easier to be formed below the tank 110.
In one embodiment, the screw conveyor plate 131 is vertically disposed on the rotation shaft 133. The structure is simple, and the processing is convenient.
In one embodiment, the maximum diameters of the screw conveyor plates 131 are equal in the up-down direction. The screw conveying plate 131 is cylindrical as a whole, and the thrown large-particle aggregate and small-particle aggregate are uniformly distributed in the up-down direction.
In one embodiment, the maximum diameter of the screw conveyor plate 131 is gradually reduced from bottom to top. The screw conveying plate 131 is integrally tapered, more small-particle aggregates are thrown out from the lower part, and less large-particle aggregates are thrown out from the upper part, so that the speed of forming a suspension state at the bottom of the tank 110 is improved.
In one embodiment, a feeding plate 134 is disposed at the bottom of the screw conveying plate 131, and the feeding plate 134 is horizontally disposed. The feeding plate 134 is horizontally arranged so that aggregate at the bottom of the can 110 enters the screw conveying plate 131.
In an embodiment, the stirring mechanism 120 includes a first stirring shaft 121 and a second stirring shaft 125 disposed inside the tank 110, where the first stirring shaft 121 and the second stirring shaft 125 extend along an up-down direction, the first stirring shaft 121 and the second stirring shaft 125 synchronously rotate reversely, a plurality of first stirring blades 122 distributed along the up-down direction are disposed on the first stirring shaft 121, a plurality of second stirring blades 126 distributed along the up-down direction are disposed on the second stirring shaft 125, and the first stirring blades 122 and the second stirring blades 126 are inclined plates and have the same size. The first stirring blade 122 and the second stirring blade 126 each have a tendency to move the aggregate in the up-down direction, thereby promoting mixing of the aggregate in the up-down direction.
In an embodiment, the first stirring vane 122 and the second stirring vane 126 are inclined in opposite directions, and the first stirring vane 122 and the second stirring vane 126 are staggered. The first stirring vane 122 and the second stirring vane 126 are staggered to avoid interference.
As shown in fig. 2, the first stirring vane 122 is inclined in a clockwise direction from top to bottom, and the second stirring vane 126 is inclined in a counterclockwise direction from top to bottom, as viewed from top to bottom. When rotating, the first stirring blade 122 rotates clockwise, the second stirring blade 126 rotates anticlockwise, and the first stirring blade 122 and the second stirring blade 126 are matched to be staggered, so that the first stirring blade 122 and the second stirring blade 126 are matched to drive aggregate to swing from one side close to the rotating shaft 133 towards the inner wall of the tank 110, the aggregate is scattered randomly, and then the first stirring blade 122 and the second stirring blade 126 stir and mix the scattered large-particle aggregate and small-particle aggregate, so that the mixing effect is improved.
The first stirring shaft 121 is provided with a first gear 123, the second stirring shaft 125 is provided with a second gear 124, the first gear 123 is meshed with the second gear 124, the tank 110 is provided with a first driving mechanism 116 and a second driving mechanism 117, the first driving mechanism 116 is used for driving the first stirring shaft 121 to rotate, and the second driving mechanism 117 is used for driving the rotating shaft 133 to rotate. The cover plate 115 is arranged on the tank 110, the first driving mechanism 116 is a first motor, the second driving mechanism 117 is a second motor, and the first motor and the second motor are fixedly arranged on the cover plate 115. The inside of the tank 110 is provided with a gear bearing plate 118, and the first gear 123 and the second gear 124 are rotatably arranged on the gear bearing plate 118.
The upper part of the tank body 110 is provided with a feed inlet 114, the lower part of the tank body 110 is provided with a discharge outlet 113, and the feed inlet 114 and the discharge outlet 113 are staggered in the circumferential direction of the tank body 110. Thus, the aggregate is stirred in the tank 110 for a longer time, and the phenomenon that the aggregate directly flows out without being uniformly stirred is avoided.
In combination with the above embodiment, the use principle and working process of the embodiment of the present invention are as follows:
The aggregate is poured from the feed inlet 114, then the first driving mechanism 116 and the second driving mechanism 117 are started, the first driving mechanism 116 drives the first stirring shafts 121 to rotate, the second stirring shafts 125 are driven to rotate, the first stirring shafts 121 rotate clockwise when seen from top to bottom, the second stirring shafts 125 rotate anticlockwise, the second driving mechanism 117 drives the rotating shafts 133 to rotate, the spiral conveying plate 131 is rotated, the aggregate deposited at the bottom of the tank 110 is conveyed upwards by the spiral conveying plate 131, small-particle aggregate is thrown out from the lower side of the tank 110 under the centrifugal force of the spiral conveying plate 131 in the conveying process, and is stirred by the stirring mechanisms 120, large-particle aggregate is thrown out from the upper side of the tank 110 under the centrifugal force of the spiral conveying plate 131, the stirring time of the large-particle aggregate by the stirring mechanisms 120 is longer when seen from top to bottom, so that after the small-particle aggregate is uniformly stirred and mixed to form a suspension state, the large-particle aggregate can be more easily mixed with the small-particle aggregate in a suspension state, meanwhile, the small-particle aggregate is prevented from being uniformly settled with the small-particle aggregate in a suspension state, and simultaneously, the small-particle aggregate is lifted to the bottom of the tank 110 is lifted to the side of the tank 110 by the spiral conveying plate, and the small-particle aggregate is further stirred by the stirring blades 122, and the large-particle aggregate is further stirred by the stirring effect of the stirring blades, and the large-particle aggregate is further and the concrete particles are lifted to the concrete particles.
Finally, the mixed concrete is discharged from the discharge port 113.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of the invention should be assessed as that of the appended claims.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510097268.XA CN119550475A (en) | 2025-01-22 | 2025-01-22 | A concrete mixing device for prefabricated building production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510097268.XA CN119550475A (en) | 2025-01-22 | 2025-01-22 | A concrete mixing device for prefabricated building production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119550475A true CN119550475A (en) | 2025-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202510097268.XA Pending CN119550475A (en) | 2025-01-22 | 2025-01-22 | A concrete mixing device for prefabricated building production |
Country Status (1)
| Country | Link |
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| CN (1) | CN119550475A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106697979A (en) * | 2015-07-21 | 2017-05-24 | 江苏恒欣仓储设备有限公司 | Steel plate bin with coiled stacked discharging device |
| DE202017105149U1 (en) * | 2017-08-28 | 2017-09-06 | Yixing City Xianglong Chemical Co., Ltd. | Reactor with dynamic and static mixing stirring |
| CN111391126A (en) * | 2020-03-20 | 2020-07-10 | 邢金柱 | A throwing and stirring concrete mixing robot |
| CN211662345U (en) * | 2020-01-09 | 2020-10-13 | 陕西实丰混凝土有限公司 | Concrete mixing device |
| CN114833944A (en) * | 2022-05-20 | 2022-08-02 | 北京住六混凝土有限公司 | Concrete mixing device |
| CN219486124U (en) * | 2022-12-16 | 2023-08-08 | 中建六局水利水电建设集团有限公司 | Concrete mixer |
| CN221834634U (en) * | 2024-01-12 | 2024-10-15 | 深圳市居安建筑科技有限公司 | A raw material mixing tank for crack-resistant recycled concrete |
-
2025
- 2025-01-22 CN CN202510097268.XA patent/CN119550475A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106697979A (en) * | 2015-07-21 | 2017-05-24 | 江苏恒欣仓储设备有限公司 | Steel plate bin with coiled stacked discharging device |
| DE202017105149U1 (en) * | 2017-08-28 | 2017-09-06 | Yixing City Xianglong Chemical Co., Ltd. | Reactor with dynamic and static mixing stirring |
| CN211662345U (en) * | 2020-01-09 | 2020-10-13 | 陕西实丰混凝土有限公司 | Concrete mixing device |
| CN111391126A (en) * | 2020-03-20 | 2020-07-10 | 邢金柱 | A throwing and stirring concrete mixing robot |
| CN114833944A (en) * | 2022-05-20 | 2022-08-02 | 北京住六混凝土有限公司 | Concrete mixing device |
| CN219486124U (en) * | 2022-12-16 | 2023-08-08 | 中建六局水利水电建设集团有限公司 | Concrete mixer |
| CN221834634U (en) * | 2024-01-12 | 2024-10-15 | 深圳市居安建筑科技有限公司 | A raw material mixing tank for crack-resistant recycled concrete |
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