CN115326629A - Fine aggregate MB value intelligent detection equipment - Google Patents
Fine aggregate MB value intelligent detection equipment Download PDFInfo
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- CN115326629A CN115326629A CN202211006119.0A CN202211006119A CN115326629A CN 115326629 A CN115326629 A CN 115326629A CN 202211006119 A CN202211006119 A CN 202211006119A CN 115326629 A CN115326629 A CN 115326629A
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- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
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Abstract
The invention belongs to the technical field of machine-made sand and stone powder-containing detection, and particularly relates to intelligent detection equipment for an MB value of fine aggregates, which comprises a detection table, wherein a control cabinet, a discharging mechanism, a stirring mixer, a first transfer mechanism, a second transfer mechanism, a visual system and a liquid adding device are arranged on the detection table, the discharging mechanism is used for moving a container, the discharging mechanism comprises a mounting base, a direct vibration conveyor, a material intercepting mechanism and a first weighing device, the direct vibration conveyor is arranged on the mounting base, the transfer mechanism comprises the first transfer mechanism and the second transfer mechanism, a pipette is arranged on the first transfer mechanism, a suction head is arranged on a suction pipe of the pipette, a rotatable finger cylinder is arranged on the second transfer mechanism, a conveying line is arranged on the detection table, and one end of the conveying line is provided with a glass rod dipping device, so that the problems that the conventional MB value of fine aggregates is complicated in raw material proportioning and long in preparation time, a detection sample is difficult to quantitatively take and the detection result error is large due to the fact that the detection sample is dipped by the glass rod.
Description
Technical Field
The invention belongs to the technical field of powder-containing detection of machine-made sand stones, and particularly relates to intelligent detection equipment for MB values of fine aggregates.
Background
Due to the characteristics of the production process of the machine-made sand, the mud powder and the stone powder in the machine-made sand are mixed, and the lower mud content has larger influence on the workability, the strength and the durability of concrete than the stone powder. The mud content of the machine-made sand is evaluated and measured by detecting a methylene blue MB value all the time, and the methylene blue value, the stone powder content and a detection method are clearly specified in the national standard GB/T14684 for building sand.
Methylene Blue Value (hereinafter referred to as MB Value) is an overall indicator for determining the presence of swellable clay minerals (mud fines) in machine-made sand and for determining a qualitative representation of their relative content. Because the clay (mud powder) mainly comprises minerals such as montmorillonite, vermiculite, pure kaolin and the like, the clay (mud powder) has small particles, loose and porous surface, large specific surface area, great adsorption capacity on methylene blue dye and small adsorption capacity on pure stone powder, the clay (mud powder) mainly reflects the effect of the stone powder or the mud powder in fine particles smaller than 0.075 mm in the detection of the mechanical sand MB value.
The test principle of MB value detection is that methylene blue solution with certain solubility is continuously added into turbid liquid prepared by stirring aggregate and water, after a certain amount of methylene blue solution is added, methylene blue is adsorbed by powder in fine aggregate, a little suspended liquid is dipped by a glass rod and dropped on filter paper to observe whether light blue color halo emitted by free methylene blue exists or not, and the adsorption condition of the aggregate to the dye solution is judged. The end point of the addition of methylene blue dye was determined by the halo test until the dye stopped surface adsorption. When free methylene blue (with a stable 5min light blue halo, halo width not less than 1mm as a standard) appeared, the fine aggregate MB value was calculated. Because present standard test flow is loaded down with trivial details, the cycle is longer, and it is higher to lead to detecting required cost of labor, also often appears the deviation when different inspection personnel detect same group's sample, and its leading cause lies in:
1. the raw materials need to be dried, screened and weighed in the early stage, and the preparation time is long;
2. in the sampling process, a glass rod dipping mode is used, and the consistency of the dipping amount cannot be achieved manually;
3. when the free methylene blue (the standard that the stable 5min light blue halo is adopted and the halo width is not less than 1 mm) is judged by human eyes, the accuracy cannot reach 1mm, the accuracy is low, and the influence of the main appearance is large.
Disclosure of Invention
Based on the problems mentioned in the background art, the invention provides intelligent detection equipment for the MB value of a fine aggregate, which is used for solving the problems that the existing aggregate MB value detection raw material proportion is complicated, the preparation time is long, a detection sample is mostly dipped by a glass rod, the quantitative sampling is difficult, and the detection result error is large.
The technical scheme adopted by the invention is as follows:
the intelligent detection equipment for the MB value of the fine aggregate comprises a detection table, wherein a control cabinet, a discharging mechanism, a stirring mixer, a first transfer mechanism, a second transfer mechanism, a visual system and a liquid adding device which are in control connection with the control cabinet are installed on the detection table, the liquid adding device is used for adding water and methylene blue solution into a container, the transfer mechanism is used for moving the container, the discharging mechanism comprises an installation base, a direct vibration feeder, a material cutting mechanism and a first weighing device, the direct vibration feeder is arranged on the installation base, the direct vibration feeder comprises a direct vibration device and a U-shaped material conveying channel, a feeding hopper is installed on the U-shaped material conveying channel, the material cutting mechanism comprises a telescopic cylinder fixed on the installation base and a material cutting hopper hinged on the installation base, wherein a U-shaped frame is arranged on the installation base, and the middle part of the material cutting hopper is hinged on the U-shaped frame, the detection device comprises a telescopic cylinder, a material cutting hopper, a first transfer mechanism, a second transfer mechanism, a first rotating mechanism, a second rotating mechanism, a rotary finger cylinder, a conveying line, a paging device and a detection test paper, wherein the telescopic cylinder is in transmission connection with the material cutting hopper, the first transfer mechanism and the second transfer mechanism both comprise four-axis mechanical arms, the four-axis mechanical arm of the first transfer mechanism is provided with the pipette, the suction pipe of the pipette is provided with a suction head, the pipette can quantitatively suck a sample from a container and transfer the sample onto the detection test paper for observation, the four-axis mechanical arm of the second transfer mechanism is provided with the rotary finger cylinder, the finger cylinder can clamp the sample and transfer the container by matching with the second transfer mechanism, the detection table is provided with the conveying line, one end of the conveying line is provided with the paging device, the detection test paper can be conveyed to the conveying line single under the action of the paging device, one side of the conveying line is provided with a first mounting frame, the conveying line is used for conveying the detection test paper to the detection area and observing the added mixed solution, the vision system is arranged on the first mounting frame, the vision system acquires images formed on the detection test paper and collects the images, and the images are transmitted to the vision image processor terminal to judge whether the sand content is qualified or not.
On the basis of the technical scheme, the invention also improves the following steps:
further, the liquid adding device comprises a first tank body, a second tank body and two pump bodies, a second weighing device is installed below the first tank body, a liquid level sensor connected with the control cabinet is arranged in the second tank body, the water inlet ends of the two pump bodies are respectively communicated with the first tank body and the second tank body, and the water outlet ends of the two pump bodies are respectively connected with a water outlet pipe and a liquid outlet pipe. The pump body can extract methylene blue solution from the first tank body and add the methylene blue solution into the container through the liquid outlet pipe, and the second weighing device is used for monitoring the weight change of the first tank body to control the extraction amount of the methylene blue; the pump body can draw clear water from the second tank body and add the clear water into the container through the water outlet pipe, and the liquid level change in the second tank body is monitored through the liquid level sensor to control the adding amount of water.
Further, be equipped with the second mounting bracket on the detection platform, install first linear rail and a plurality of second linear rail on the second mounting bracket, outlet pipe and drain pipe are fixed in on the slip table of first linear rail, all install the stirring blender on the slip table of second linear rail, the stirring blender includes first step motor and installs the puddler in first step motor pivot. The water outlet pipe and the liquid outlet pipe can be driven to move through the first linear rail to add water and methylene blue solution into different containers; the second linear rail can drive the stirring mixer to move up and down, so that the stirring rod is prevented from interfering the movement of the second transfer mechanism to the container.
Further, install the suction head storehouse on detecting the platform, the suction head storehouse is including placing frame and a plurality of suction head, place and set up a plurality of standing grooves that are used for laying the suction head on the frame. A plurality of spare suction heads are arranged in the suction head storehouse, and the suction heads can be replaced when the mixed solution sample is sucked from the container every time, so that the influence of blockage of the suction heads on subsequent sampling after use is avoided.
Further, install the waste material collector on detecting the platform, the collector includes the waste material dish, install the waste pipe on the waste material dish, the waste pipe is connected with the garbage collection jar. After the detection is finished, the solution in the container can be poured into a waste tray through the second transfer mechanism for recycling.
Furthermore, a filter disc and a high-pressure cleaner are arranged on the waste material disc. Pour the interior waste material of container and back-off on high pressure cleaner, can wash the container fast, the cleaning performance is better.
Furthermore, install the storehouse on the test table, the storehouse is located the one end of transfer chain of depositing, install marking machine on the first mounting bracket. Each test paper can be marked through the marking machine, and the used test paper can be conveyed to a storage bin for storage, so that the test paper can be traced conveniently.
The invention has the beneficial effects that:
1. the discharging mechanism can quickly put fine aggregates into the container, the second transfer mechanism can transfer the container filled with the fine aggregates to the position below the stirring mixer to add water and methylene blue solution for stirring, the pipettor can quantitatively absorb the stirred and mixed containing solution to be placed on the detection test paper, the vision system acquires an image formed on the detection test paper and transmits the image to the vision image processor terminal for MB value detection, the detection accuracy is high, and the labor workload is low;
2. the fine aggregate sampling, the solution mixing and the sampling detection can be independently carried out, the operation is simple and convenient, and the detection period is short.
Drawings
The invention is further illustrated by the non-limiting examples given in the accompanying drawings;
FIG. 1 is a first schematic structural diagram of an intelligent detection device for MB value of fine aggregate in the embodiment of the invention;
FIG. 2 is a schematic structural diagram II of an intelligent detection device for the MB value of the fine aggregate in the embodiment of the invention;
FIG. 3 is a schematic view of a partially cut-away structure of a discharging mechanism in the embodiment of the invention;
FIG. 4 is a schematic structural diagram of a first transfer mechanism according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a second transfer mechanism in an embodiment of the present invention;
FIG. 6 is a schematic longitudinal sectional view of a waste collector according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of the tip magazine according to an embodiment of the present invention;
the main element symbols are as follows:
the container 01, the detection platform 1, the second mounting frame 21, the first linear rail 22, the second linear rail 23, the first stepping motor 24, the stirring rod 241, the receiving hopper 25, the first transfer mechanism 3, the four-axis mechanical arm 30, the pipettor 31, the second transfer mechanism 4, the motor base 41, the second stepping motor 42, the finger cylinder 43, the conveying line 5, the collector 6, the waste tray 61, the high-pressure washer 62, the filter disc 63, the waste water pipe 64, the first mounting frame 7, the suction head warehouse 8, the placing frame 81, the placing groove 82, the suction head 83, the placing mechanism 9, the mounting base 91, the straight vibrator 92, the U-shaped conveying channel 93, the feeding hopper 94, the intercepting hopper 95, the telescopic cylinder 96 and the U-shaped frame 97.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.
As shown in fig. 1, 2 and 3, the device comprises a detection platform 1, wherein a control cabinet 16, a discharging mechanism 9 in control connection with the control cabinet 16, a stirring mixer, a first transfer mechanism 3, a second transfer mechanism 4, a vision system and a liquid adding device are installed on the detection platform 1, the liquid adding device is used for adding water and methylene blue solution into a container 01, the discharging mechanism 9 is used for moving the container 01, the discharging mechanism 9 comprises a mounting base 91, a straight vibration conveyor, a material cutting mechanism and a first weighing device 14, the weight of the container 01 is monitored through the first weighing device 14 so as to achieve the purpose of fixing and adding fine aggregate, the straight vibration conveyor is arranged on the mounting base 91 and comprises a straight vibration device 92 and a U-shaped material conveying channel 93, a feed hopper 94 is installed on the U-shaped material conveying channel 93, the material cutting mechanism comprises a telescopic cylinder 96 fixed on the mounting base 91 and a material cutting hopper 95 hinged on the mounting base 91, a U-shaped frame 97 is arranged on the mounting base 91, the middle part of the material cutting hopper 95 is hinged on the U-shaped frame 97, and the telescopic cylinder 96 is in transmission connection with the material cutting hopper 95. The addition amount of the fine aggregate, the water amount and the methylene blue solution is set by the control cabinet 16, the fine aggregate is added from the feed hopper 94, the fine aggregate gradually enters the container 01 on the first load bearing device 14 from the feed channel 93 under the action of the straight vibrator 92, and when the weight of the fine aggregate reaches the requirement, the telescopic cylinder 96 is started to push the receiving hopper 25 (shown in figure 3), so that the fine aggregate can be cut off and cannot continuously flow into the container 01.
As shown in fig. 4 and 5, each of the first transfer mechanism 3 and the second transfer mechanism 4 includes a four-axis robot 30, a pipette 31 is installed on the four-axis robot 30 of the first transfer mechanism 3, a suction head 83 is installed on a suction tube of the pipette 31, a sample can be quantitatively sucked from a container 01 through the pipette 31 and transferred onto a test paper for observation, a rotatable finger cylinder 43 is installed on the second transfer mechanism 4, wherein a motor base 41 is installed on the four-axis robot 30 of the second transfer mechanism 4, a second stepping motor 42 is installed on the motor base 41, a rotating shaft of the second stepping motor 42 is provided with the finger cylinder 43, the container 01 can be transferred by the finger cylinder 43 in a clamping capacity 01 matching with the second transfer mechanism 4, the second stepping motor 42 can drive the finger cylinder 43 to rotate for dumping waste in the container 01, a detection table 1 is provided with a transfer line 5, one end of the mounting table 5 is provided with a detection test paper, the sorter is provided with the detection test paper, the detection table 5 can convey the detection paper to the transfer line 5 under the effect of the sorter, one side of the detection table 5 is provided with a first transfer line 5, the vision test paper is used for adding the detection line 5, and the vision test paper is added to the mounting table for observing system, and the vision image processor is used for acquiring the qualified image, and judging whether the vision test paper is provided with the vision test paper.
As shown in fig. 2, the liquid adding device includes a first tank 12, a second tank 13 and two pump bodies, a second weighing device 11 is installed below the first tank 12, a liquid level sensor connected with a control cabinet 16 is installed in the second tank 13, water inlet ends of the two pump bodies are respectively communicated with the first tank 12 and the second tank 13, water outlet ends of the two pump bodies are respectively connected with a water outlet pipe 221 and a liquid outlet pipe, in this embodiment, a peristaltic pump is preferably used as a pump body to ensure accurate extraction of water and methylene blue, the pump body can extract methylene blue solution from the first tank 12 and add the methylene blue solution into a container 01 through the liquid outlet pipe, and the second weighing device 11 monitors the weight change of the first tank 12 to control the extraction amount of methylene blue; the pump body can pump clear water from the second tank body 13 and add the clear water into the container through the water outlet pipe 221, and the liquid level sensor monitors the liquid level change in the second tank body 13 to control the adding amount of the water.
As shown in fig. 1 and fig. 2, a second mounting frame 21 is arranged on the detection table 1, a first linear rail 22 and a plurality of second linear rails 23 are mounted on the second mounting frame 21, in this embodiment, the number of the second linear rails 23 is preferably three, the water outlet pipe 221 and the liquid outlet pipe are fixed on the sliding table of the first linear rail 22, stirring mixers are mounted on the sliding table of the second linear rail 23, and each stirring mixer includes a first stepping motor 24 and a stirring rod 241 mounted on the rotating shaft of the first stepping motor 24. The water outlet pipe 221 and the liquid outlet pipe can be driven to move by the first linear rail 22 to add water and methylene blue solution into different containers 01; the second linear rail 23 can drive the stirring mixer to move up and down, so as to prevent the stirring rod 241 from interfering the movement of the second transfer mechanism 4 to the container 01.
As shown in fig. 2 and 7, the tip library 8 is installed on the detection table 1, the tip library 8 comprises a placing frame 81 and a plurality of tips 83, a plurality of placing grooves 82 for placing the tips 83 are formed in the placing frame 81, a plurality of spare tips 83 are placed in the tip library 8, and a new tip 83 can be replaced each time a mixed solution sample is sucked from a container 01, so that the influence of blockage of the tip 83 on subsequent sampling is avoided; in order to be able to better recover the suction tips 83, a free placement frame 81 can be provided on one side of the tip magazine 8.
As shown in fig. 2 and 7, the detection table 1 is provided with a waste collector 6, the collector 6 comprises a waste tray 61, the waste tray 61 is provided with a waste pipe 64, the waste pipe 64 is connected with a waste collection tank, and after the detection is finished, the solution in the container 01 can be poured into the waste tray 61 through the second transfer mechanism 4 for recycling; install filter disc 63 and high pressure cleaner 62 on the waste material dish 61, pour the back-off on high pressure cleaner 62 with waste material in the container 01, can wash container 01 fast, the cleaning performance is better, install the storage compartment on the test table 1, the storage compartment is located the one end of transfer chain 5, install marking machine on the first mounting bracket 7, can mark each test paper through marking machine, but the test paper 5 after using sends into the storage compartment and keeps, be convenient for trace back.
When the device is used, fine aggregates to be detected are poured into the feed hopper 94, the container 01 is placed on the first weighing device 14, the fine aggregates in the feed hopper 94 can be gradually conveyed into the container 01 under the action of the straight vibrator 92, the first weighing device 14 feeds back the addition amount of the fine aggregates in the container 01 to the control cabinet 16, and when the addition amount reaches the requirement, the telescopic cylinder 96 is started to drive the intercepting hopper 95 to rotate to intercept the fine aggregates falling from one end of the U-shaped feed channel 93, so that the fine aggregates cannot continuously fall into the container 01. The container 01 with the added fine aggregate is then gripped by the second transfer mechanism 4 and transferred to below the second linear rail 23, and the empty container is gripped and placed on the first weighing device 14 to continue the taking. The method comprises the steps of quantitatively extracting clean water and methylene blue solution through a peristaltic pump and injecting the clean water and the methylene blue solution into a container 01 below a second linear rail 23, driving a first stepping motor 24 to descend through the second linear rail 23 to uniformly mix aggregate and solution in the container 01 through a stirring rod 241, driving a pipettor 31 to obtain a new suction head 83 from a suction head base 8 through a first transfer mechanism 3, then quantitatively sucking a solution sample from the container 01 and dropping the solution sample onto detection test paper in a detection area, and acquiring an image formed on the detection test paper through a vision system, and transmitting the image to a vision image processor terminal for judging whether the sand content is qualified or not. After the detection is finished, the second linear rail 23 drives the stirring mixer to return, the second transfer mechanism 4 clamps the sampled container 01, the container 01 is poured into the waste tray 61, and the container 01 is reversely buckled on the high-pressure cleaner 62 to be cleaned, so that the container 01 can be recycled. Meanwhile, the conveying line 5 conveys the used detection test paper into the storage bin, the paging device conveys the new detection test paper into the conveying line 5, the conveying line 5 conveys the new detection test paper into the detection area for subsequent use, and the marking machine marks the detection test paper.
The intelligent detection equipment for the MB value of the fine aggregate provided by the invention is described in detail above. The description of the specific embodiments is only intended to facilitate an understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, it is possible to make various improvements and modifications to the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (7)
1. Fine aggregate MB value intellectual detection system equipment, including examining test table (1), examine test table (1) and go up the drop feed mechanism (9), stirring mixer, first transfer mechanism (3), second transfer mechanism (4), visual system and the liquid of installing switch board (16) and being connected with switch board (16) control and add the device, the liquid adds the device and is arranged in adding water and methylene blue solution to container (01), transfer mechanism is used for moving container (01), its characterized in that: drop feed mechanism (9) are including mounting base (91), the feeder that directly shakes, cut material mechanism and first weighing device (14), the feeder that directly shakes is located on mounting base (91), cut material mechanism including being fixed in telescopic cylinder (96) on mounting base (91) and articulate cut hopper (95) on mounting base (91), telescopic cylinder (96) are connected with cut hopper (95) transmission, transfer mechanism includes first transfer mechanism (3) and second transfer mechanism (4), install pipettor (31) on first transfer mechanism (3), install suction head (83) on the straw of pipettor (31), install rotatable finger cylinder (43) on second transfer mechanism (4), install transfer line (5) on detecting platform (1), the paging ware is installed to the one end of transfer line (5), one side of transfer line (5) is equipped with first mounting bracket (7), vision system locates on first mounting bracket (7).
2. The intelligent detection device for the MB value of the fine aggregates according to claim 1, wherein: the liquid adding device comprises a first tank body (12), a second tank body (13) and two pump bodies, wherein a second weighing device (11) is installed below the first tank body (12), a liquid level sensor connected with a control cabinet (16) is arranged in the second tank body (13), the water inlet ends of the two pump bodies are respectively communicated with the first tank body (12) and the second tank body (13), and the water outlet ends of the two pump bodies are respectively connected with a water outlet pipe (221) and a liquid outlet pipe.
3. The fine aggregate MB value intelligent detection apparatus according to claim 2, characterized in that: detect and be equipped with second mounting bracket (21) on platform (1), install first linear rail (22) and a plurality of second linear rail (23) on second mounting bracket (21), outlet pipe (221) and drain pipe are fixed in on the slip table of first linear rail (22), all install the stirring blender on the slip table of second linear rail (23).
4. The intelligent detection device for the MB value of the fine aggregates according to claim 3, wherein: detect and install suction head storehouse (8) on platform (1), suction head storehouse (8) are including placing frame (81) and a plurality of suction head (83), place and offer a plurality of standing grooves (82) that are used for laying suction head (83) on frame (81).
5. The intelligent detection device for the MB value of the fine aggregates according to claim 1, wherein: detect and install waste material collector (6) on platform (1), collector (6) include waste material dish (61), install waste pipe (64) on waste material dish (61), waste pipe (64) are connected with the garbage collection jar.
6. The intelligent detection device for the MB value of the fine aggregates according to claim 5, wherein: and a filter disc (63) and a high-pressure cleaner (62) are arranged on the waste material disc (61).
7. The intelligent detection device for the MB value of the fine aggregates according to claim 1, wherein: the detecting table is characterized in that a storage bin is installed on the detecting table (1), the storage bin is located at one end of the conveying line (5), and a marking machine is installed on the first installation frame (7).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211006119.0A CN115326629A (en) | 2022-08-22 | 2022-08-22 | Fine aggregate MB value intelligent detection equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211006119.0A CN115326629A (en) | 2022-08-22 | 2022-08-22 | Fine aggregate MB value intelligent detection equipment |
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| CN115326629A true CN115326629A (en) | 2022-11-11 |
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| CN202211006119.0A Pending CN115326629A (en) | 2022-08-22 | 2022-08-22 | Fine aggregate MB value intelligent detection equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116660455A (en) * | 2023-07-31 | 2023-08-29 | 四川蜀道建筑科技有限公司 | Methylene blue MB value measuring device and MB value measuring method thereof |
| CN118090719A (en) * | 2024-04-23 | 2024-05-28 | 四川省公路规划勘察设计研究院有限公司 | Methylene blue MBV value detection device |
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| JPH06289032A (en) * | 1993-04-01 | 1994-10-18 | Toshiba Corp | Dispensing method for automatic analyzer and dispensing system |
| CN214201093U (en) * | 2020-10-27 | 2021-09-14 | 重庆建工建材物流有限公司 | Automatic device for machine-made sand methylene blue test |
| CN214764697U (en) * | 2021-03-26 | 2021-11-19 | 上海申昆混凝土集团有限公司 | Automatic monitoring equipment of machine-made sand methylene blue |
| CN215005004U (en) * | 2021-06-28 | 2021-12-03 | 中国水利水电第八工程局有限公司 | Automatic detect mechanism sand MB value test device |
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2022
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| JPH06289032A (en) * | 1993-04-01 | 1994-10-18 | Toshiba Corp | Dispensing method for automatic analyzer and dispensing system |
| CN214201093U (en) * | 2020-10-27 | 2021-09-14 | 重庆建工建材物流有限公司 | Automatic device for machine-made sand methylene blue test |
| CN214764697U (en) * | 2021-03-26 | 2021-11-19 | 上海申昆混凝土集团有限公司 | Automatic monitoring equipment of machine-made sand methylene blue |
| CN215005004U (en) * | 2021-06-28 | 2021-12-03 | 中国水利水电第八工程局有限公司 | Automatic detect mechanism sand MB value test device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116660455A (en) * | 2023-07-31 | 2023-08-29 | 四川蜀道建筑科技有限公司 | Methylene blue MB value measuring device and MB value measuring method thereof |
| CN116660455B (en) * | 2023-07-31 | 2023-10-20 | 四川蜀道建筑科技有限公司 | Methylene blue MB value measuring device and MB value measuring method thereof |
| CN118090719A (en) * | 2024-04-23 | 2024-05-28 | 四川省公路规划勘察设计研究院有限公司 | Methylene blue MBV value detection device |
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