UHPC (Ultra High Performance Concrete) mixture performance optimizing and adjusting device
By using high-precision metering devices and directly adding cementitious slurry in UHPC concrete production, the fluidity problem caused by mixing equipment failure was solved, enabling rapid adjustment and efficient production.
Patent Information
- Application Number
- CN202422596410.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-10-28
AI Technical Summary
In the production process of UHPC concrete, the extended mixing time caused by the failure of the mixing equipment will result in slump loss and reduced fluidity. Existing technologies make it difficult to quickly adjust the properties of the mixture, especially in large-scale concrete mixing systems where it is difficult to accurately weigh and uniformly mix cementitious materials.
A UHPC concrete mixture performance optimization and adjustment device was designed, which includes a high-precision weighing scale, a powder premixer, a conveying pump and a slurry mixer to achieve accurate weighing and mixing of powder and water, and to directly add cementitious slurry to the mixer, thereby improving mixing efficiency and uniformity.
By precisely controlling the addition of cementitious materials, the mixing time is shortened, the fluidity adjustment efficiency of UHPC concrete is improved, and cost waste and quality control difficulties are reduced.
Smart Images
Figure CN223604671U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the UHPC concrete mixture performance optimization field, especially a kind of UHPC concrete mixture performance optimization adjusting device. BACKGROUND
[0002] Solid waste-based coarse aggregate UHPC uses solid waste coarse aggregate to replace part of quartz sand as uhpc skeleton, and the cost is greatly reduced compared with conventional UHPC concrete, has excellent mechanical properties and durability, also has similar mixture characteristics with UHPC, and the fluidity loss is also fast.
[0003] At present, considering the economy, the production system equipment of ordinary concrete is followed. After the weighing of various raw materials is completed, they are put into the mixer for stirring and forming. Under normal production rhythm, stable feeding can be met, but when the stirring time is prolonged due to the failure of other production equipment, the slump loss of UHPC and the reduction of fluidity may occur, which brings great difficulty to the pouring construction and quality control of UHPC products, and if the mixture is directly discarded, there is also a considerable cost waste and trouble in handling waste materials.
[0004] Usually, the method for improving and adjusting the performance of the mixture is to add cement slurry with the same mixing ratio while keeping the water-cement ratio unchanged, and to stir thoroughly. However, it is difficult to adjust in the large-scale concrete mixing system equipment. First, the amount of added cement slurry is not much, and the cementitious material of UHPC often has two or even three or more than four powders, and the required amount of each powder is not much, usually measured in kg or g, so it is difficult to accurately weigh. Second, when adjusting, the various powders and water are separately put into the mixer and the original UHPC concrete with insufficient fluidity, and it is difficult to quickly and uniformly mix with the original UHPC concrete. UTILITY MODEL CONTENTS
[0005] The utility model aims at overcoming the defects of prior art and provides a kind of UHPC concrete mixture performance optimization adjusting device.
[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that a kind of UHPC concrete mixture performance optimization adjusting device, including mixer, uhpc skeleton material storage and transportation assembly for storing, weighing and transporting uhpc skeleton material in communication with the inlet of the mixer, powder bin assembly for storing powder and weighing and conveying powder into the mixer in communication with the inlet of the mixer, conveying pump assembly for weighing and conveying water and additives in communication with the inlet of the mixer, slurry maker assembly accurately weighing for preparing cementitious material slurry in communication with the outlet of powder bin assembly and the inlet of the mixer.
[0007] Preferably, the pulper assembly comprises a high-precision metering scale in communication with the inlet and the outlet of the bin assembly, a powder premixer in communication with the inlet and the outlet of the high-precision metering scale for premixing the powder, a first water scale in communication with the inlet and the outlet of the high-precision metering scale for weighing, a first water pump in communication with the outlet and the inlet of the first water scale, a pulper in communication with the inlet and the outlet of the first water scale and the high-precision metering scale for preparing the cementitious material slurry, and a cement slurry pump in communication with the inlet and the outlet of the pulper and the inlet of the mixer.
[0008] Preferably, the uhpc skeleton material storage and transportation assembly comprises a storage bin for storing solid waste-based coarse aggregate, fiber material, quartz sand, and yellow sand, four measuring scales arranged at the bottom of the storage bin and located at the discharge ports of the respective storage bins for weighing, a conveyor belt having one end arranged below the discharge ports of the four measuring scales and the other end extending to the inlet of the mixer, and a storage hopper arranged between the conveyor belt and the inlet of the mixer for premixing.
[0009] Preferably, the powder bin assembly comprises a plurality of powder bins for storing powder ash material and cement material, a powder ash scale and a cement scale in communication with the inlets and the outlets of the respective powder bins and the inlet of the mixer for measuring the powder ash material and the cement material.
[0010] Preferably, the delivery pump assembly comprises a second water pump for supplying water, a plurality of additive pumps for supplying additives, an additive scale in communication with the inlets and the outlets of the respective additive pumps for measuring the weight of the additives, a second water scale in communication with the inlets and the outlets of the respective second water pump and the additive scale, and a delivery pump in communication with the inlet and the outlet of the second water scale and the inlet of the mixer.
[0011] Compared with the prior art, the present application has the following advantages:
[0012] The present application can directly add cement slurry to the mixer by additionally connecting the pulper assembly to the outlet of the powder bin assembly and the outlet of the additive of the delivery pump assembly, thereby increasing the cementitious material slurry in accordance with the actual needs of the project, reducing the adverse effects on the product, and improving the control accuracy of the device. BRIEF DESCRIPTION OF DRAWINGS
[0013] The technical solutions of the present application will be further described below with reference to the accompanying drawings:
[0014] ATTACHMENT Figure 1 The overall structure of the UHPC concrete mixture performance optimization adjustment device is shown in the accompanying drawings.
[0015] Wherein: 1, blender; 2, uhpc skeleton material storage and transportation assembly; 21, storage bin; 22, measuring scale; 23, conveying belt; 24, storage hopper; 3, powder bin assembly; 31, powder bin; 32, powder scale; 33, cement scale; 4, conveying pump assembly; 41, second water pump; 42, additive pump; 43, additive scale; 44, second water scale; 45, conveying pump; 5, pulper assembly; 51, high-precision metering scale; 52, powder premixer; 53, first water scale; 54, first water pump; 55, pulper; 56, glue slurry pump. DETAILED DESCRIPTION
[0016] The utility model will be made further detailed explanation in combination with the specific embodiment and the drawings.
[0017] The utility model relates to a uhpc skeleton material mixing system, including blender, uhpc skeleton material storage and transportation assembly, powder bin assembly, conveying pump assembly and pulper assembly. Figure 1The utility model discloses a UHPC concrete mixture performance optimization adjusting device, containing mixer 1, the uhpc skeleton material storage and transportation subassembly 2 of material end and mixer 1 inlet port intercommunication for storing weighing transportation uhpc skeleton material, the powder storehouse subassembly 3 of material outlet and mixer 1 inlet port intercommunication for storing powder material and conveying powder material to the inside of mixer 1 with powder material weighing, the conveying pump 45 subassembly 4 of material outlet and mixer 1 inlet port intercommunication for weighing conveying water and additive, the pulper 55 subassembly 5 of material inlet and powder storehouse subassembly 3 material outlet intercommunication and material outlet and mixer inlet port intercommunication can accurate weighing for making vehicle cementitious material slurry, the pulper 55 subassembly 5 includes the high accuracy metering scale 51 of material inlet and storehouse subassembly material outlet intercommunication, the powder premixing machine 52 of material inlet and high accuracy metering scale 51 material outlet intercommunication for premixing powder material, the first water scale 53 for weighing of material inlet and conveying pump 45 subassembly 4 additive material outlet intercommunication, the first water pump 54 of water outlet and first water scale 53 material inlet intercommunication, the pulper 55 for making cementitious material slurry of material inlet and first water scale 53 and high accuracy metering scale 51 material outlet intercommunication, the glue material slurry pump 56 of material inlet and pulper 55 material outlet intercommunication and material outlet and mixer 1 inlet port intercommunication, the uhpc skeleton material storage and transportation subassembly 2 includes the storage of solid waste base coarse aggregate, fiber material, quartz sand, yellow sand's storage bin 21, four measuring scales 22 for weighing are arranged at the bottom of storage bin 21 at each storage place lower outlet, one end is arranged below the lower outlet of four measuring scales 22 and the other end extends to the inlet port of mixer 1 conveying belt 23, the storage hopper 24 for premixing is arranged between conveying belt 23 and the inlet port of mixer 1, the powder storehouse subassembly 3 includes a plurality of powder stores 31 for storing powder ash material and cement material, the powder ash scale 32 and cement scale 33 for measuring powder ash material and cement material of material inlet and a plurality of powder stores 31 material outlet intercommunication respectively and material outlet and mixer 1 inlet port intercommunication, the conveying pump 45 subassembly 4 includes the second water pump 41 for water supply, a plurality of additive pumps 42 for supplying additive, the additive scale 43 for measuring additive weight of material inlet and a plurality of additive pumps 42 material outlet intercommunication, the second water scale 44 of material inlet and second water pump 41 water outlet agent and additive scale 43 material outlet intercommunication respectively, the conveying pump 45 of material inlet and second water scale 44 material outlet intercommunication and material outlet and mixing and inlet port intercommunication.
[0018] In use: the ash and cement in the powder bin 31 are respectively conveyed to the ash scale 32 and the cement scale 33 to be weighed, and when the weight reaches the specified requirement, the conveying is stopped, then the ash and cement in the ash scale 32 and the cement scale 33 are poured into the mixer 1, then the discharge port of the storage bin 21 is opened, and the solid waste-based coarse aggregate, fiber material, quartz sand and yellow sand in the storage bin 21 are respectively weighed in the corresponding measuring scale 22, and when the weight reaches the specified requirement, the discharge port of the storage bin 21 is closed, then the discharge port of the measuring scale 22 is opened, and the solid waste-based coarse aggregate, fiber material, quartz sand and yellow sand fall on the conveying belt 23, and then fall into the storage hopper 24 to be premixed, and then fall into the mixer 1 from the storage hopper 24, then the second water pump 41 is opened, the second water pump 41 conveys water to the second water scale 44 to be weighed, and when the weight reaches, the second water pump 41 is stopped, then the additive pump 42 is opened, the additive pump 42 conveys additives to the additive scale 43, and when the weight reaches, the additive pump 42 is stopped, then the additives in the additive scale 43 are conveyed into the second water scale 44 to be mixed with water, and then the mixed water and additives are transported into the mixer 1 through the conveying pump 45, and then the mixer 1 is started to stir to form the final mixture, since the powder bin is also communicated with the high-precision measuring scale 51, the ash and cement are weighed in a small amount with high precision, each kind of powder is accurately weighed according to the reasonable cement paste adding ratio of the laboratory, and then enters the powder premixer 52 to be premixed, and then is taken according to the demand, when the UHPC concrete fluidity is found to be insufficient during construction, the cementing material in the powder premixer 52 is directly weighed according to the ratio given by the laboratory into the pulp maker 55, then the first water pump 54 is started to convey water to the first water scale 53 to be weighed, and when the weight reaches, the first water pump 54 is stopped, then the additive pump 42 is opened, the additive pump 42 conveys additives to the additive scale 43, and when the weight reaches, the additive pump 42 is stopped, then the additives in the additive scale 43 are conveyed into the first water scale 53 to be mixed with water, and then the water and additives in the first water scale 53 are conveyed into the pulp maker 55 to be mixed with the cementing material to form a cementing material slurry, and then the cementing material slurry pump 56 is started to add the cementing material slurry into the mixer 1 to fully stir to improve the UHPC concrete fluidity.
[0019] The above is only a specific application example of the utility model, and does not constitute any limitation on the protection scope of the utility model. Any technical solution formed by equivalent transformation or equivalent replacement falls within the protection scope of the utility model.
Claims
1. A device for optimizing the adjustment of the properties of a UHPC concrete mix, characterized in that: The device comprises a mixer, a material feeding end connected with the feeding inlet of the mixer for storing and transporting uhpc framework material, a powder bin assembly connected with the feeding inlet of the mixer for storing powder material and transporting the powder material into the mixer, a delivery pump assembly connected with the feeding inlet of the mixer for storing and transporting water and additives, and a slurry maker assembly connected with the feeding inlet of the powder bin assembly and the feeding inlet of the mixer for precisely storing and transporting materials for making cementitious slurry.
2. The UHPC concrete mix performance optimization adjustment device of claim 1, wherein: The slurry maker assembly comprises a high-precision metering scale connected with the feeding inlet of the powder bin assembly, a powder premixer connected with the feeding inlet of the high-precision metering scale, a first water scale connected with the feeding inlet of the delivery pump assembly for weighing, a first water pump connected with the feeding inlet of the first water scale, a slurry maker connected with the feeding inlets of the first water scale and the high-precision metering scale, and a cementitious slurry pump connected with the feeding inlet of the slurry maker and the feeding inlet of the mixer.
3. The UHPC concrete mix performance optimization adjustment device of claim 1, wherein: The uhpc framework material storage and transportation assembly comprises storage bins for storing solid waste-based coarse aggregate, fiber material, quartz sand and yellow sand, four measuring scales arranged at the bottom of the storage bins and below the discharge ports of the storage bins for weighing, a conveyor belt arranged at one end below the discharge ports of the four measuring scales and extending to the feeding inlet of the mixer, and a storage hopper arranged between the conveyor belt and the feeding inlet of the mixer for premixing.
4. The UHPC concrete mix performance optimization adjustment device of claim 1, wherein: The powder bin assembly comprises a plurality of powder bins for storing powder ash material and cement material, powder ash scales and cement scales connected with the feeding inlets of the plurality of powder bins and the feeding inlet of the mixer for measuring the powder ash material and the cement material.
5. The UHPC concrete mix performance optimization adjustment device of claim 1, wherein: The delivery pump assembly comprises a second water pump for supplying water, a plurality of additive pumps for supplying additives, an additive scale connected with the feeding inlets of the plurality of additive pumps for measuring the weight of the additives, a second water scale connected with the feeding inlets of the second water pump and the additive scale, and a delivery pump connected with the feeding inlet of the second water scale and the feeding inlet of the mixer.