CN115056354B - Frame base and tropical concrete heat preservation transportation equipment - Google Patents
Frame base and tropical concrete heat preservation transportation equipment Download PDFInfo
- Publication number
- CN115056354B CN115056354B CN202210382701.0A CN202210382701A CN115056354B CN 115056354 B CN115056354 B CN 115056354B CN 202210382701 A CN202210382701 A CN 202210382701A CN 115056354 B CN115056354 B CN 115056354B
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- wall
- rubber
- concrete
- cylinder
- roller
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- 238000004321 preservation Methods 0.000 title claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 238000005096 rolling process Methods 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 10
- 239000000498 cooling water Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 27
- 239000010959 steel Substances 0.000 claims description 27
- 239000002184 metal Substances 0.000 claims description 21
- 230000008093 supporting effect Effects 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 9
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
-
- 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
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—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
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4268—Drums, e.g. provided with non-rotary mixing blades
-
- 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
- B28C5/46—Arrangements for applying super- or sub-atmospheric pressure during mixing; Arrangements for cooling or heating during mixing, e.g. by introducing vapour
- B28C5/466—Heating, e.g. using steam
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The embodiment of the invention provides a frame base and tropical concrete heat-insulating transportation equipment, and the frame base is used for bearing a concrete mixing tank and is characterized in that a driving device and a rolling bracket are arranged on the frame base; the frame base is provided with a roller capable of lifting, and the roller is supported in the middle of the rubber wall of the concrete stirring tank and can press the rubber wall to deform; the water receiving mouth of a long strip is arranged below the bottom end of the rubber wall, the water receiving mouth is communicated to a water storage container below the second cone section through a water return pipe, and a refrigerating device is arranged inside the water storage container and used for cooling water inside the water storage container. According to the invention, through the cooling system and the heat-insulating wall structure arranged on the concrete mixing tank, the temperature of the wall of the tank is reduced, and the external high temperature is effectively prevented from entering the interior of the concrete mixing tank, so that the internal concrete is ensured to be kept at a proper temperature in the transportation process of the concrete mixing truck.
Description
The application is entitled to the invention: a tropical concrete heat preservation transportation device, the application date is: 2021, 10 months and 15 days, application number is: 202111204281.9, filed divisional application.
Technical Field
The invention relates to the technical field of concrete construction, in particular to a frame base and tropical concrete heat-preservation transportation equipment.
Background
Concrete is usually transported by a concrete mixer truck, but under the condition of high temperature in the tropical zone, the temperature in the concrete truck is usually higher than the outdoor temperature, so that the quality of the concrete is reduced, the construction quality is reduced, and acceptance is difficult.
Disclosure of Invention
In view of the technical problems described above, the embodiment of the invention provides a tropical concrete heat preservation transportation device, which solves the problem that the high temperature in the transportation process of a concrete mixer truck affects the quality of concrete.
A tropical concrete insulation transport apparatus comprising:
the frame base is used for bearing the concrete mixing tank and is provided with a driving device and a rolling bracket;
one end of the concrete stirring tank is connected with the driving device, and the other end of the concrete stirring tank is supported by the rolling bracket in a jacking manner; the concrete mixing tank comprises a first cone section, a cylinder section and a second cone section, wherein the first cone section is close to the driving device, and the second cone section is close to the rolling bracket;
wherein: a heat-insulating wall is arranged outside the cylinder walls of all the first cone sections, all the cylinder sections and part of the second cone sections, and a gap is arranged between the heat-insulating wall and the cylinder wall so as to allow water to stay in the gap;
the heat-insulating walls of the cylinder section and the second cone section are metal walls, and a plurality of spiral toothed plates are uniformly arranged between the metal walls and the cylinder wall, so that spiral channels are formed between the metal walls and the cylinder wall;
the heat preservation wall of the first cone section is a rubber wall, and the rubber wall is in sealing connection with the metal wall;
the cylinder wall bottom circumference at first awl section is equipped with annular backup pad, makes cylinder wall and rubber wall form sealing connection in the bottom through the backup pad, wherein adopts openable connection between rubber wall and the backup pad: when opened, the water outlet is used as a water outlet, and when closed, the water outlet is used as a sealing function;
the frame base is provided with a roller capable of lifting, and the roller is supported in the middle of the rubber wall and can press the rubber wall to deform;
a supporting ring is arranged on the inner side of the middle part of the rubber wall between the supporting part and the bottom end of the roller, and the supporting ring is supported on the cylinder wall by supporting pieces which are arranged at intervals; the rubber wall at the outer side of the support ring is internally provided with an axially arranged steel rod, and the steel rod is connected with the support ring in a non-fixed mode, so that the steel rod can swing in a small amplitude relative to the support ring; one end of the steel rod extends to the edge of the rubber wall, and the other end of the steel rod extends to the area supported by the roller, so that the roller can force one end of the steel rod to displace inwards, and the other end of the steel rod displaces outwards, so that the rubber wall at the other end deforms downwards to form an opening;
a strip-shaped water receiving port is arranged below the bottom end of the rubber wall and is communicated to a water storage container below the second cone section through a water return pipe, and a refrigerating device is arranged in the water storage container and used for cooling water in the water storage container;
the water storage container is provided with a water outlet pipe, a pipe orifice of the water outlet pipe is inserted between the cylinder wall and the opening of the end part of the metal wall, an annular first rubber strip is arranged outside the pipe wall, a second rubber strip for replacing is arranged at the end part of the metal wall, the first rubber strip and the second rubber strip are connected in an overlapping mode and are blocked, and a pipe orifice of the water outlet pipe is inserted between the first rubber strip and the second rubber strip.
The pipe orifice of the water outlet pipe is arc-shaped and is matched with the opening.
The steel rod is arranged in the rubber wall in a buried mode.
An elastic reset device is arranged between one end of the steel rod at the supporting position of the roller and the wall of the roller.
The lower part of the roller is arranged on the sliding block, the sliding block is arranged in the vertical guide groove, and the lower part of the sliding block is connected with the height adjusting mechanism.
The height adjusting mechanism is an air cylinder or a screw nut.
The distance between the helical tooth plates located inside the cylindrical section is greater than the distance between the helical tooth plates located in the second conical section, resulting in a greater density of the helical tooth plates in the second conical section. The effect is that the second cone section has larger inclination, so the spiral toothed plate structure with higher density is adopted, and the delay effect on water flow is larger.
According to the invention, through the cooling system and the heat-insulating wall structure arranged on the concrete mixing tank, the temperature of the wall of the tank is reduced, and the external high temperature is effectively prevented from entering the interior of the concrete mixing tank, so that the internal concrete is ensured to be kept at a proper temperature in the transportation process of the concrete mixing truck.
Drawings
The invention will be better understood from the following description of specific embodiments thereof, taken in conjunction with the accompanying drawings, in which:
other features, objects and advantages of the present invention will become more apparent upon reading the following detailed description of non-limiting embodiments thereof, taken in conjunction with the accompanying drawings in which like or similar reference characters designate the same or similar features.
Fig. 1 is a schematic diagram of an external structure of a thermal insulation transport apparatus for tropical concrete according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of an internal structure of a thermal insulation transport device for tropical concrete according to an embodiment of the present invention.
In the figure:
10. a frame base; 11. a driving device; 12. a rolling bracket; 13. a roller; 14. a water receiving port; 15. a water return pipe; 16. a water storage container; 17. a water outlet pipe;
20. a concrete mixing tank; 21. a first cone section; 22. a cylindrical section; 23. a second cone section; 24. a thermal insulation wall; 25. a spiral toothed plate; 26. a support ring; 27. a support; 28. a steel rod;
Detailed Description
Features and exemplary embodiments of various aspects of the invention are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the invention by showing examples of the invention. The present invention is in no way limited to any particular configuration and algorithm set forth below, but rather covers any modification, substitution, and improvement of elements, components, and algorithms without departing from the spirit of the invention. In the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present invention.
Example embodiments will now be described with reference to example embodiments, which can be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the inventive aspects may be practiced without one or more of the specific details, or with other methods, components, materials, etc. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring the main technical idea of the invention.
As shown in fig. 1-2, the present invention provides a thermal insulation transport apparatus for tropical concrete, comprising:
a frame base 10 for carrying a concrete mixing tank 20, and provided with a driving device 11 and a rolling bracket 12;
a concrete mixing tank 20, one end of which is connected to the driving device 11 and the other end of which is supported by the rolling bracket 12 in a lifting manner; the concrete mixing tank 20 comprises a first cone section 21, a cylinder section 22 and a second cone section 23, wherein the first cone section 21 is close to the driving device 11, and the second cone section 23 is close to the rolling bracket 12;
wherein: a heat-insulating wall 24 is arranged outside the cylinder walls of all the first cone section 21, all the cylinder section 22 and part of the second cone section 23, and a gap is arranged between the heat-insulating wall 24 and the cylinder wall so as to allow water to be reserved in the gap;
the heat-insulating walls of the cylinder section 22 and the second cone section 23 are metal walls, and a plurality of spiral toothed plates 25 are uniformly arranged between the metal walls and the cylinder walls so as to form spiral channels between the metal walls and the cylinder walls;
the heat preservation wall of the first cone section 21 is a rubber wall, and the rubber wall is in sealing connection with the metal wall;
the interlayer formed between the metal wall and the cylinder wall forms a stable supporting effect, so that the spiral toothed plate 25 arranged in the metal wall can connect the metal wall with the cylinder wall, and in the process of rotating the concrete mixing tank, water flows slowly downwards in a spiral shape along the channel formed by the spiral toothed plate 25, so that the speed of the water flows downwards along the interlayer of the concrete mixing tank is greatly delayed;
the cylinder wall bottom circumference at first cone section is equipped with annular backup pad 26, makes cylinder wall and rubber wall form sealing connection in the bottom through backup pad 26, wherein adopts openable connection between rubber wall and the backup pad: when opened, the water outlet is used as a water outlet, and when closed, the water outlet is used as a sealing function;
a roller 13 capable of lifting is arranged on the frame base 10, and the roller 13 is supported at the middle part of the rubber wall and can press the rubber wall to deform;
a supporting ring 27 is arranged on the inner side of the middle part of the rubber wall between the supporting part and the bottom end of the roller 13, and the supporting ring 27 is supported on the cylinder wall by supporting pieces 28 which are arranged at intervals; the rubber wall at the outer side of the support ring is internally provided with an axially arranged steel rod, and the steel rod is connected with the support ring in a non-fixed mode, so that the steel rod can swing in a small amplitude relative to the support ring; wherein one end of the steel rod extends to the edge of the rubber wall, and the other end extends to the area supported by the roller, so that the roller can force one end of the steel rod 28 to displace inwards, and the other end of the steel rod displaces outwards, so that the rubber wall at the other end deforms downwards to form an opening;
a strip-shaped water receiving port 14 is arranged below the bottom end of the rubber wall, the water receiving port 14 is communicated with a water storage container 16 below the second cone section through a water return pipe 15, and a refrigerating device is arranged inside the water storage container 16 and used for cooling water inside the water storage container;
the water storage container 16 is provided with a water outlet pipe 17, a pipe orifice of the water outlet pipe 17 is inserted between the cylinder wall and the opening of the end part of the metal wall, an annular first rubber strip is arranged outside the cylinder wall, an annular second rubber strip is arranged at the end part of the metal wall, the first rubber strip and the second rubber strip are connected in an overlapping mode and are blocked, and a pipe orifice of the water outlet pipe is inserted between the first rubber strip and the second rubber strip. Because two rubber strips all have elasticity and can warp, the outlet pipe can insert between the two and make the two produce elastic deformation, and the position of outlet pipe is motionless, and when concrete mixing tank slowly rotates, two rubber strips and outlet pipe hookup location also constantly change, break away from after being connected with the outlet pipe, the rubber strip can be through self elasticity reconversion to realize sealedly, prevent that the inside aqueous vapor of intermediate layer from leaking.
The pipe orifice of the water outlet pipe is arc-shaped and is matched with the opening.
The steel rod is arranged in the rubber wall in a buried mode.
An elastic reset device is arranged between one end of the steel rod at the supporting position of the roller and the wall of the roller.
The lower part of the roller is arranged on the sliding block, the sliding block is arranged in the vertical guide groove, and the lower part of the sliding block is connected with the height adjusting mechanism.
The height adjusting mechanism is an air cylinder or a screw nut.
The distance between the helical tooth plates located inside the cylindrical section is greater than the distance between the helical tooth plates located in the second conical section, resulting in a greater density of the helical tooth plates in the second conical section. The effect is that the second cone section has larger inclination, so the spiral toothed plate structure with higher density is adopted, and the delay effect on water flow is larger.
According to the invention, through the cooling system and the heat-insulating wall structure arranged on the concrete mixing tank, the temperature of the wall of the tank is reduced, and the external high temperature is effectively prevented from entering the interior of the concrete mixing tank, so that the internal concrete is ensured to be kept at a proper temperature in the transportation process of the concrete mixing truck.
Those skilled in the art will appreciate that the above-described embodiments are exemplary and not limiting. The different technical features presented in the different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art in view of the description and the claims. In the claims, the term "comprising" does not exclude other means or steps; the indefinite article "a" does not exclude a plurality; the terms "first," "second," and the like, are used for designating a name and not for indicating any particular order.
Claims (3)
1. The tropical concrete heat preservation transportation equipment comprises a frame base and a concrete stirring tank, wherein the frame base is used for bearing the concrete stirring tank, and is characterized in that a driving device and a rolling bracket are arranged on the frame base;
one end of the concrete stirring tank is connected with the driving device, and the other end of the concrete stirring tank is supported by the rolling bracket in a jacking manner; the concrete mixing tank comprises a first cone section, a cylinder section and a second cone section, wherein the first cone section is close to the driving device, and the second cone section is close to the rolling bracket;
wherein: a heat-insulating wall is arranged outside the cylinder walls of all the first cone sections, all the cylinder sections and part of the second cone sections, and a gap is arranged between the heat-insulating wall and the cylinder wall so as to allow water to stay in the gap;
the heat-insulating walls of the cylinder section and the second cone section are metal walls, and a plurality of spiral toothed plates are uniformly arranged between the metal walls and the cylinder wall, so that spiral channels are formed between the metal walls and the cylinder wall;
the heat preservation wall of the first cone section is a rubber wall, and the rubber wall is in sealing connection with the metal wall;
the cylinder wall bottom circumference at first awl section is equipped with annular backup pad, makes cylinder wall and rubber wall form sealing connection in the bottom through the backup pad, wherein adopts openable connection between rubber wall and the backup pad: when opened, the water outlet is used as a water outlet, and when closed, the water outlet is used as a sealing function;
the frame base is provided with a roller capable of lifting, and the roller is supported in the middle of the rubber wall of the concrete stirring tank and can press the rubber wall to deform;
a supporting ring is arranged on the inner side of the middle part of the rubber wall between the supporting part and the bottom end of the roller, and the supporting ring is supported on the cylinder wall by supporting pieces which are arranged at intervals; the rubber wall at the outer side of the support ring is internally provided with an axially arranged steel rod, and the steel rod is connected with the support ring in a non-fixed mode, so that the steel rod can swing in a small amplitude relative to the support ring; one end of the steel rod extends to the edge of the rubber wall, and the other end of the steel rod extends to the area supported by the roller, so that the roller can force one end of the steel rod to displace inwards, and the other end of the steel rod displaces outwards, so that the rubber wall at the other end deforms downwards to form an opening;
a strip-shaped water receiving port is arranged below the bottom end of the rubber wall and is communicated to a water storage container below the second cone section through a water return pipe, and a refrigerating device is arranged in the water storage container and used for cooling water in the water storage container;
the water storage container is provided with a water outlet pipe, a pipe orifice of the water outlet pipe can be inserted between the cylinder wall of the concrete stirring tank and the opening of the end part of the metal wall of the concrete stirring tank, an annular first rubber strip is arranged outside the cylinder wall, an annular second rubber strip is arranged at the end part of the metal wall, the first rubber strip and the second rubber strip are connected in an overlapping manner and are blocked, and a pipe orifice of the water outlet pipe is inserted between the first rubber strip and the second rubber strip;
the pipe orifice of the water outlet pipe is arc-shaped and is matched with the opening;
an elastic reset device is arranged between one end of the steel rod at the supporting position of the roller and the wall of the roller;
the lower part of the roller is arranged on the sliding block, the sliding block is arranged in the vertical guide groove, and the lower part of the sliding block is connected with the height adjusting mechanism.
2. The thermal transport equipment for tropical concrete according to claim 1,
the steel rod is arranged in the rubber wall in a buried mode.
3. The thermal transport equipment for tropical concrete according to claim 1,
the height adjusting mechanism is an air cylinder or a screw nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210382701.0A CN115056354B (en) | 2021-10-15 | 2021-10-15 | Frame base and tropical concrete heat preservation transportation equipment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111204281.9A CN113858438B (en) | 2021-10-15 | 2021-10-15 | Tropical concrete heat preservation transportation equipment |
| CN202210382701.0A CN115056354B (en) | 2021-10-15 | 2021-10-15 | Frame base and tropical concrete heat preservation transportation equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111204281.9A Division CN113858438B (en) | 2021-10-15 | 2021-10-15 | Tropical concrete heat preservation transportation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115056354A CN115056354A (en) | 2022-09-16 |
| CN115056354B true CN115056354B (en) | 2024-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210382701.0A Active CN115056354B (en) | 2021-10-15 | 2021-10-15 | Frame base and tropical concrete heat preservation transportation equipment |
| CN202210382686.XA Active CN115056353B (en) | 2021-10-15 | 2021-10-15 | Concrete mixing tank and tropical concrete heat preservation transportation equipment |
| CN202111204281.9A Active CN113858438B (en) | 2021-10-15 | 2021-10-15 | Tropical concrete heat preservation transportation equipment |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210382686.XA Active CN115056353B (en) | 2021-10-15 | 2021-10-15 | Concrete mixing tank and tropical concrete heat preservation transportation equipment |
| CN202111204281.9A Active CN113858438B (en) | 2021-10-15 | 2021-10-15 | Tropical concrete heat preservation transportation equipment |
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| CN (3) | CN115056354B (en) |
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| CN206254328U (en) * | 2016-05-31 | 2017-06-16 | 山东济工机械科技有限公司 | It is a kind of from cooling type concrete delivery truck |
| CN108972884A (en) * | 2018-08-11 | 2018-12-11 | 于志婷 | Vertical concrete stirring machine and concrete production line |
| CN211468272U (en) * | 2019-12-23 | 2020-09-11 | 郑州博源机械有限公司 | Stirring tank for concrete mixer truck |
| CN214266150U (en) * | 2020-12-04 | 2021-09-24 | 商丘市俱豪建材有限公司 | Cooling device for recycled concrete production |
| CN113146843A (en) * | 2021-03-10 | 2021-07-23 | 王利珍 | Concrete mixing device with temperature control function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115056354A (en) | 2022-09-16 |
| CN113858438A (en) | 2021-12-31 |
| CN115056353A (en) | 2022-09-16 |
| CN113858438B (en) | 2022-05-27 |
| CN115056353B (en) | 2024-04-19 |
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