WO2022227745A1 - Appareil et procédé de mesure de teneur en humidité d'un matériau, et système de production et de transport de béton - Google Patents

Appareil et procédé de mesure de teneur en humidité d'un matériau, et système de production et de transport de béton Download PDF

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Publication number
WO2022227745A1
WO2022227745A1 PCT/CN2022/074039 CN2022074039W WO2022227745A1 WO 2022227745 A1 WO2022227745 A1 WO 2022227745A1 CN 2022074039 W CN2022074039 W CN 2022074039W WO 2022227745 A1 WO2022227745 A1 WO 2022227745A1
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WIPO (PCT)
Prior art keywords
moisture content
moisture
detecting
controller
conveying belt
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PCT/CN2022/074039
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English (en)
Chinese (zh)
Inventor
佘田茂
封卫国
何长青
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三一汽车制造有限公司
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Publication of WO2022227745A1 publication Critical patent/WO2022227745A1/fr

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/04—Investigating moisture content

Definitions

  • the present application relates to the field of construction machinery, in particular to a material moisture content detection device and a detection method thereof, and a concrete production and conveying system.
  • Aggregate refers to the granular loose material that acts as a skeleton or filler in concrete. Divided into coarse aggregate and fine aggregate. Coarse aggregate refers to pebbles, gravel, etc., and fine aggregate refers to natural sand, artificial sand, etc. Aggregate moisture content is one of the most critical factors affecting the quality of concrete. Excessive aggregate moisture content will lead to too thin final concrete. Therefore, technicians need to know the aggregate moisture content in real time in order to configure concrete.
  • the present application provides a material moisture content detection device, a detection method, and a concrete production and conveying system, which solve the technical problem of inaccurate moisture content measurement in the prior art when the moisture content of materials is detected online.
  • the present application provides a device for detecting moisture content of materials, which is used to detect the moisture content of materials conveyed by a conveyor belt in concrete production; wherein, the device for detecting moisture content of materials includes: material leveling a device, the material leveling device is configured to be arranged above the conveying belt and configured to level the material on the conveying belt; and a moisture analyzer configured to detect the material being subjected to the The moisture content of the material after being leveled by the leveling device; wherein, the material leveling device includes: a scraper, the scraper has a first end and a second end arranged oppositely; a first side plate connected with the first end; and a second side plate connected with the second end of the scraper plate; the first side plate and the second side plate are opposite and arranged at intervals.
  • the scraper includes: at least two first scrapers, two adjacent first scrapers are connected, and two adjacent first scrapers The included angle between them is less than 180°.
  • the scraper includes two connected first scrapers, and the other ends of the two first scrapers away from one end connected to each other are respectively connected with the first scraper.
  • the side plate is connected to the second side plate.
  • the device for detecting the moisture content of the material further includes a detector, the detector is configured to detect whether the material is leveled.
  • the detector is a micro switch arranged inside the scraper.
  • the device for detecting the moisture content of the material further includes: a controller, the controller is connected in communication with the detector and the moisture analyzer, and when the detector detects the After the material is leveled, the controller controls the moisture meter to detect the moisture content of the leveled material.
  • the moisture analyzer includes: a microwave transmitter, a microwave receiver and a signal receiver;
  • one of the microwave transmitter and the microwave receiver is used to be arranged above the conveying belt and corresponds to the area after the material leveling device is leveled, and the other is used to be arranged at the area where the material leveling device is leveled.
  • the microwave transmitter is configured to emit microwaves
  • the microwave receiver is configured to receive the microwaves emitted by the microwave transmitter after passing through the material and the remaining microwaves after the conveying belt;
  • the signal receiver is connected in communication with the microwave transmitter and the microwave receiver, and the signal receiver detects the material according to the microwaves emitted by the microwave transmitter and the remaining microwaves received by the microwave receiver moisture content.
  • connection line between the microwave transmitter and the microwave receiver is perpendicular to the conveying belt, and the microwave transmitter and the microwave receiver correspond to the first area setting, wherein the first area is an area jointly enclosed by the scraper plate, the first side plate and the second side plate.
  • the device for detecting the moisture content of the material further includes: a cleaning device disposed above the conveying belt, the cleaning device being configured as the microwave transmitter above the conveying belt Or when the microwave receiver is not working, clean the microwave transmitter or the microwave receiver.
  • the cleaning device includes: a compressed air supply device; and a compressed air pipe, the compressed air pipe includes an inlet and an outlet, the inlet communicates with the outlet of the compressed air supply device; the compressed air The air enters the compressed air pipe through the inlet and is ejected through the outlet to clean up debris; wherein, the outlet of the compressed air pipe corresponds to the microwave transmitter or the microwave receiver to be cleaned.
  • the material moisture content detection device further includes: a lifting mechanism, the lifting mechanism is configured to drive the material leveling device to move in a first direction; wherein the first direction is the same as the first direction.
  • the conveyor belt is vertical.
  • the present application provides a concrete production and conveying system, comprising:
  • a material silo a conveying belt and a mixer, the material silo is located upstream of the conveying belt, and the discharge end of the conveying belt is connected to the mixer; and a material moisture content detection device; wherein, the material moisture content
  • the detection device is the above-mentioned material moisture content detection device.
  • the present application provides a method for detecting the moisture content of a material, which is applicable to the above-mentioned device for detecting the moisture content of a material, wherein the device for detecting the moisture content of a material further comprises: a detector and a controller , the controller is connected in communication with the detector and the moisture analyzer; wherein, the method for detecting the moisture content of the material includes: the controller obtains a material leveling signal sent by the detector, and the material The leveling signal is used to indicate that the material has been leveled by the material leveling device; the controller generates a first control signal according to the material leveling signal; the moisture analyzer receives the first control signal. In this case, the moisture content of the material after being leveled by the material leveling device is detected.
  • the moisture analyzer detects the moisture content of the material leveled by the material leveling device, including:
  • the moisture analyzer detects the moisture content of the material leveled by the material leveling device after a first preset time period after receiving the first control signal.
  • the method for detecting the moisture content of the material further includes: the controller obtains, by the controller, a plurality of data obtained by the moisture analyzer detecting the material leveled by the material leveling device multiple times within a first period of time. The moisture content of the material; the controller generates the average moisture content of the material according to the moisture content of the multiple materials; wherein, the start time of the first duration is the end time of the first preset duration.
  • the method for detecting the moisture content of the material further includes: the controller according to the relationship between the scraper and the material. The distance between the detectors and the linear speed of the conveying belt determine the first preset time period.
  • the moisture meter includes: a microwave transmitter, a moisture meter probe and a signal receiver, and the moisture meter probe is arranged above the conveying belt; the controller according to the The distance between the scraper and the detector and the linear speed of the conveying belt determine the first preset duration, including: the controller according to the relationship between the scraper and the moisture meter probe. The distance between them and the linear speed of the conveying belt determine the first preset time period.
  • the method for detecting the moisture content of the materials further includes: the controller acquires the materials Unloading completion signal; the controller determines the material type of the material according to the material unloading completion signal, the distance between the material bin and the scraper, and the linear speed of the conveyor belt; The controller obtains a moisture content correction coefficient corresponding to the material type according to the material type; and the controller corrects the average moisture content of the material according to the moisture content correction coefficient, and generates a water content correction coefficient of the material. Moisture content correction value.
  • the device for detecting the moisture content of the material further includes: a cleaning device disposed above the conveying belt; wherein, when the moisture analyzer receives the first control signal
  • the method for detecting the moisture content of the material further includes: the controller acquiring a material production end signal; the controller according to the a material production end signal to generate a second control signal; and
  • the cleaning device performs cleaning work when receiving the second control signal.
  • the method for detecting the moisture content of the material further includes: the controller generates an end signal according to the material, and generates a first prompt information, the first prompt information is used to prompt that the moisture analyzer needs to be cleaned; the controller obtains the cleaning information input by the user, and generates a third control signal; and the cleaning device receives the third control signal In the case of a signal, perform cleaning work.
  • the method for detecting the moisture content of the material further includes: the controller acquires cleaning information input by a user;
  • the controller obtains the working state information of the moisture analyzer; when the working state information of the moisture analyzer obtained by the controller is stop working information, a fourth control signal is generated according to the cleaning information; and The cleaning device performs cleaning work when receiving the fourth control signal.
  • the material detection device further includes: a lifting mechanism, the lifting mechanism is configured to drive the material leveling device and the moisture analyzer to move in a first direction, wherein the first The direction is perpendicular to the conveying belt; wherein, after the moisture analyzer detects the moisture content of the material leveled by the material leveling device under the condition of receiving the first control signal,
  • the method for detecting the moisture content of the material further includes: the controller acquires first information, where the first information is used to indicate that the moisture content of the material does not need to be detected; the controller generates, according to the first information, fifth control information; and the lifting mechanism drives the material leveling device and the moisture meter to move away from the conveying belt along the first direction under the control of the fifth control information.
  • the material moisture content detection device includes: a material leveling device arranged above the material conveying belt, configured to level the material on the material conveying belt; and a moisture analyzer, which is configured to detect the leveling of the material The moisture content of the material after being leveled by the device; wherein, the material leveling device includes: a scraper, a first side plate and a second side plate connected to both ends of the scraper, that is, the scraper is arranged on the first side plate and the second side panel. The scraper plate, the first side plate and the second side plate together form a first area. When the material is conveyed by the conveying belt, the scraper plate flattens the material passing under the scraper plate.
  • the conveying belt vibrates greatly. Therefore, when the leveled material continues to be conveyed to the first area, the first side plate and the second side plate can block the first side plate and the second side plate which are located outside the first area and are not The leveled material enters the first area under the action of vibration. Therefore, the thickness of the material located in the first area is uniform.
  • the moisture analyzer detects the moisture content of the material located in the first area, it is located in the first area. The thickness of the material in an area is uniform, thus increasing the accuracy of the moisture content measurement.
  • FIG. 1 shows a schematic structural diagram of a concrete production and conveying system provided by an embodiment of the present application
  • FIG. 2 shows a schematic structural diagram of a material moisture content detection device provided by an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a material leveling device in a material moisture content detection device provided in an embodiment of the present application
  • FIG. 4 is a schematic structural diagram of a concrete production and conveying system provided by another embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a material moisture content detection device provided by another embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a material moisture content detection device provided by another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a material moisture content detection device provided by another embodiment of the present application.
  • FIG. 8 is a schematic flow diagram of a method for detecting moisture content of a material provided by the application.
  • Fig. 9 shows the schematic flow sheet of the detection method of another kind of material moisture content provided by this application.
  • Figure 10 shows a schematic flow diagram of another method for detecting moisture content of materials provided by the application
  • Figure 11 shows a schematic flowchart of another method for detecting moisture content of materials provided by the application
  • Figure 12 shows a schematic flowchart of another method for detecting the moisture content of a material provided by the application
  • Figure 13 shows a schematic flow diagram of another method for detecting moisture content of materials provided by the application
  • Figure 14 shows a schematic flowchart of another method for detecting the moisture content of materials provided by the application
  • FIG. 15 is a schematic flowchart of another method for detecting the moisture content of a material provided by the present application.
  • a plurality of means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. All directional indications (such as up, down, left, right, front, back, top, bottom%) in the embodiments of the present application are only used to explain the difference between the various components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication also changes accordingly. Furthermore, the terms “comprising” and “having” and any variations thereof are intended to cover non-exclusive inclusion.
  • a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally also includes For other steps or units inherent to these processes, methods, products or devices.
  • FIG. 1 is a schematic structural diagram of a concrete production and conveying system according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a material moisture content detection device 400
  • the concrete production and conveying system includes: a material bin 100 , a conveying belt 300 and a mixer (not shown in FIG. 1 ). Connect the mixer; and the material moisture content detection device 400, the material moisture content detection device 400 is arranged on the side of the conveying belt 300 close to the mixer.
  • the material conveyed by the conveying belt 300 is conveyed along the material conveying direction X.
  • FIG. 1 is a schematic structural diagram of a concrete production and conveying system according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a material moisture content detection device 400 .
  • the concrete production and conveying system includes: a material bin 100 , a conveying belt 300 and a mixer (not shown in FIG. 1 ). Connect the mixer; and the material moisture content detection device 400, the material moisture content detection device 400 is
  • the material moisture content detection device 400 includes: a material leveling device 41, the material leveling device 41 is arranged above the conveying belt 300, and is configured to level the material on the conveying belt 300; and Moisture analyzer 42, the moisture analyzer 42 is configured to detect the moisture content of the material leveled by the material leveling device 41; wherein, the material leveling device 41 includes: a first side plate 411 and a second side plate 412, wherein, The first side plate 411 and the second side plate 412 are arranged opposite and spaced apart; the scraper plate 413, the scraper plate 413 is arranged between the first side plate 411 and the second side plate 412, and the first end of the scraper plate 413 It is fixedly connected with the first side plate 411, the second end of the scraper 413 is fixedly connected with the second side plate 412, and the first end and the second end are opposite ends. One ends of the 411 and the second side plate 412 away from the scraper 413 extend toward the material conveying direction X.
  • the scraper plate 413 , the first side plate 411 and the second side plate 412 together form the first area Q.
  • the scraper plate 413 smoothes the material passing under the scraper plate 413 . Since the conveying belt 300 vibrates greatly during the material being conveyed, when the leveled material continues to be conveyed to the first area Q, the first side plate 411 and the second side plate 412 can block the The material outside the area Q and not leveled enters the first area Q under the action of vibration, therefore, the thickness of the material located in the first area Q is uniform.
  • the moisture content of the material is determined, since the thickness of the material located in the first region Q is uniform, the accuracy of the moisture content detection data is increased.
  • the material moisture content detection device 400 provided in the present application can detect powder materials and materials with particle diameters below 5-6 cm, such as aggregates. That is, the material moisture content detection device 400 provided in the present application can not only detect the moisture content of aggregates, but also detect powders and non-aggregate materials with particle diameters below 5-6 cm.
  • the concrete production conveying system further includes: a conveying bracket 500, a mounting bracket 600 fixed on the conveying bracket 500; the mounting bracket 600 is used for installing other components, such as material leveling
  • the device 41 and the moisture meter 42 can be fixed on the mounting bracket 600, so that the material leveling device 41 can be positioned above the conveying belt 300 to level the material on the conveying belt 300.
  • the moisture meter 42 can detect the conveying belt 300. The moisture content of the material on the material belt 300.
  • the mounting bracket 600 can be independent of the material moisture content detection device 400, that is, the installation bracket 600 is a part of the concrete production and conveying system, but not a part of the material moisture content detection device 400. Therefore, when the concrete production conveying system When used for conveying other materials that do not need to detect moisture content, the mounting bracket 600 can be used to fix other components. At this time, the mounting bracket 600 can be fixedly connected with the feeding bracket in a non-detachable manner, for example, by welding. The mounting bracket 600 can also be connected with the feeding support in a detachable manner, for example, by screwing.
  • the installation bracket 600 may also be a part of the material moisture content detection device 400 , that is, the installation bracket 600 is not only a part of the concrete production and conveying system, but also a part of the material moisture content detection device 400 .
  • the installation bracket 600 is installed on the conveying bracket, and then the material leveling device 41 and the moisture meter 42 are installed on the installation bracket 600, and the material leveling device 41 can be used for conveying materials.
  • the material on the belt 300 is leveled, and the moisture meter 42 detects the moisture content of the material on the conveying belt 300 .
  • the fixing method of the mounting bracket 600 and the material conveying bracket can only be detachable, for example, through screw connection and the like.
  • FIG. 3 shows a top view of the material leveling device 41 in the material moisture content detection device 400 provided by the present application; as shown in FIG. 3 , the scraper 413 includes: at least two first A scraper 414, two adjacent first scrapers 414 are fixedly connected, and the included angle ⁇ between two adjacent first scrapers 414 is less than 180°.
  • the scraper 413 includes a plurality of first scrapers 414, and the included angle ⁇ between two adjacent first scrapers 414 is less than 180°, that is, any group of two adjacent first scrapers 414 can form two sides of a triangle.
  • the tip of the included angle ⁇ faces the upstream of the conveying belt 300, and the material follows the angular first.
  • the moving resistance of the scraper 414 is small, that is to say, there is an included angle between the two resistances given by the two adjacent first scrapers 414, and there is at least one resistance between the two resistances and the conveyor belt.
  • the included angle ⁇ is greater than 30° and less than 45°.
  • the scraper plate 413 includes two connected first scraper plates 414 , and the other ends of the two first scraper plates 414 away from one end connected to each other are respectively connected with the first side plate 411 and the second side plate 414 .
  • Board 412 is connected.
  • the scraper 413 includes two first scrapers 414 , the manufacturing difficulty of the scraper 413 can be reduced.
  • the scraper 413 is integrally formed, that is, at least two first scrapers 414 are integrally formed, which increases the stability of the scraper 413 .
  • the scraper plate 413 , the first side plate 411 and the second side plate 412 in the material leveling device 41 are integrally formed, which increases the stability of the entire material leveling device 41 .
  • the first side plate 411 and the second side plate 412 are arranged in parallel and extend along the length direction of the conveying belt 300.
  • the first side plate 411 and the second side plate 411 The vertical distance l1 between 412 is 6 to 10 cm, and the overall width d of the conveying belt 300 is 80 cm, that is, the vertical distance l1 between the first side plate 411 and the second side plate 412 is greater than or equal to the length of the conveying belt 300.
  • the vertical distance between the first side plate 411 and the second side plate 412 is 6-10 cm, the area of the material that can be leveled by the entire material leveling device 41 will not be too large or too small.
  • the thickness uniformity of the material in the first area is increased, the accuracy of the detection data is further increased, and the material will not overflow the conveying belt 300 due to being scraped by the scraper 413 .
  • the vertical distance between the first side plate 411 and the second side plate 412 is 8 cm, that is, the vertical distance between the first side plate 411 and the second side plate 412 is ten times the width of the conveyor belt 300.
  • l1 1d/10.
  • the specific distance between the end of the scraper 413 close to the conveyor belt 300 and the conveyor belt 300 is determined according to the thickness of the material, and the distance between the scraper 413 and the conveyor belt 300 can be adjusted.
  • the specific adjustment methods can be as follows:
  • the mounting bracket 600 includes two vertical brackets 62 , a first horizontal bracket 61 and a second horizontal bracket 63 , and the two vertical brackets 62 are respectively fixed at both ends of the feeding bracket 500 in the width direction, Both ends of the first horizontal bracket 61 and the second horizontal bracket 63 are respectively fixed on the two vertical brackets 61 , and the second horizontal bracket 62 is located above the first horizontal bracket 61 .
  • the material leveling device 41 is fixed on the first horizontal support 61
  • the moisture analyzer 42 is fixed on the second horizontal support 62 .
  • the distance between the first horizontal support 61 and the conveying belt 300 can be adjusted by adjusting the position of the first horizontal support 61 on the vertical support, so that the scraper 413 and the conveying belt 300 in the material leveling device 41 can be adjusted. the distance l2 between them.
  • the material moisture content detection device 400 further includes:
  • the detector and the controller wherein the controller is respectively connected to the detector and the moisture analyzer 42 in communication link, the detector is configured to detect whether the material is leveled by the material leveling device 41, after the detector detects that the material is leveled, the controller
  • the moisture meter 42 is controlled to detect the moisture content of the leveled material.
  • FIG. 5 shows another schematic structural diagram of the material moisture content detection device 400 provided by the present application.
  • the detector is a micro switch 43 , wherein the micro switch 43 is arranged on the scraper 413
  • the inner side where the inner side of the scraper plate 413 refers to the side of the scraper plate 413 close to the first area Q (the area jointly enclosed by the scraper plate 413 , the first side plate 411 and the second side plate 412 ), where the control
  • the device is connected in communication with the micro switch 43 and the moisture analyzer 42, and the micro switch 43 is configured to detect whether the material is leveled.
  • the controller is connected in communication with the micro switch 43 and the moisture analyzer 42; wherein, the micro switch 43 is used to generate a material leveling signal, and send the material leveling signal to the controller, and the controller transmits the material leveling signal to the moisture content
  • the measuring instrument 42, the moisture measuring instrument 42 detects the moisture content of the material leveled by the material leveling device according to the material leveling signal.
  • the micro switch 43 is arranged at a middle position inside one of the first scrapers 414 .
  • the micro switch 43 includes: a micro switch body 431 ; a contact piece 432 (eg, a spring piece) fixed at one end of the micro switch body 431 , and the other end of the contact piece 432 is a free end, free The end is close to the conveying belt 300, and the extension direction of the contact piece 432 is perpendicular to the conveying belt 300; and the contact is arranged on the contact piece 432, wherein the contact includes a fixed contact and a moving contact. When the material passes through the scraper 413, the contact piece 432 will be toggled.
  • a contact piece 432 eg, a spring piece
  • the micro switch 43 When the contact piece 432 is toggled by the material, the movable contact and the fixed contact are quickly connected, that is, the micro switch 43 is turned on, and it can be considered that: the material It has been leveled by the material leveling device, that is to say, when the contact piece 432 is toggled by the material, the micro switch 43 will generate a material leveling signal, and transmit the material leveling signal to the controller, and the controller will The leveling signal is transmitted to the moisture analyzer 42, and after receiving the material leveling signal, the moisture analyzer 42 starts detection work after a preset time period. In this application, the micro switch 43 is used to detect whether the material is leveled. Since the micro switch 43 can be closed by the contact piece 432, the micro switch 43 can generate a material leveling signal.
  • the micro switch 43 has a simple structure and is easy to implement.
  • the distance l2 between the end of the scraper 413 close to the conveyor belt 300 and the conveyor belt 300 is 7cm, when the thickness of the material on the conveyor belt 300 is greater than or equal to 7cm, when the scraper 413 cleans the material When scraping, the thickness of the scraped material is 7cm, and the thickness of the material after scraping is the same.
  • a material leveling signal is generated, and the micro switch 43 transmits the material leveling signal to the moisture analyzer 42.
  • the moisture analyzer 42 starts the detection work after a preset period of time, and reduces the The probability of inaccurate detection results due to inconsistent material thickness in the detection area is eliminated.
  • the moisture analyzer 42 starts to work after a preset time period.
  • the preset time period can be determined according to the position of the micro switch 43 on the scraper 413 , the relationship between the scraper 413 and the moisture content.
  • the distance between the measuring instruments 42 and the conveying parameter information of the material conveyed by the conveying belt 300 are determined.
  • the micro switch 43 is arranged on the scraping plate 413 and is closer to the moisture measuring instrument 42.
  • the preset duration is shorter.
  • the moisture analyzer 42 selects the detection channel corresponding to the type of materials to determine the moisture content of the materials according to the types of materials. Carry out detection to obtain the current moisture content of the material; then select the appropriate moisture content correction model according to the type of material to select the appropriate correction coefficient, and correct the current moisture content according to the correction coefficient, so as to obtain the final moisture content of the material, that is, the The moisture content of the material.
  • the detector When judging the type of material conveyed by the conveying belt 300, the distance between the material bin 100 and the scraper 413, the linear speed of the conveying belt 300 and the material unloading signal are used to determine the type of material conveyed by the conveying belt 300.
  • specific material types the detector may not only be the micro switch 43 described above, but also other detection equipment such as a camera.
  • the installation position of the detector can be determined according to the specific type of the detector, it can be installed on the material leveling device, or can be installed in other positions. For example, when the detector is the micro switch 43, the micro switch 43 is installed on the inner side of the scraper.
  • the moisture analyzer 42 includes: a microwave transmitter, a microwave receiver and a signal receiver;
  • one of the microwave transmitter and the microwave receiver is arranged above the conveying belt 300 and corresponds to the area after the material leveling device 41 has been leveled, and the other is arranged below the conveying belt 300.
  • the microwave transmitter is configured with
  • the microwave receiver is set to receive the microwaves emitted by the microwave transmitter after passing through the material and the remaining microwaves after the conveyor belt;
  • the signal receiver is communicated with the microwave transmitter and the microwave receiver.
  • the microwave and the residual microwave received by the microwave receiver are used to detect the moisture content of the material.
  • connection line between the microwave transmitter and the microwave receiver is perpendicular to the conveying belt 300 , that is, the microwave receiver and the microwave receiver correspond to the upper and lower positions of the conveying belt 300 .
  • the microwave transmitter and the microwave receiver correspond to the first region Q, preferably to a position in the middle of the first side plate 411 and the second side plate 412 .
  • the first area is the area jointly enclosed by the scraper plate 413 , the first side plate 411 and the second side plate 411
  • the moisture analyzer 42 includes: a microwave transmitter (not shown in FIG. 6 ) disposed under the conveying belt 300 is configured to emit microwaves; Moisture meter probe 421, the moisture meter probe 421 is arranged above the conveying belt 300, and the moisture meter probe 421 is configured to receive the microwave emitted by the microwave transmitter after passing through the material and the remaining microwaves after the conveying belt 300, that is, the moisture meter probe 421 is used as a microwave The receiver is used; and the signal receiver 422, the signal receiver 422 is arranged under the conveying belt 300, and the signal receiver 422 is configured to: detect the material according to the microwave emitted by the microwave transmitter and the remaining microwave received by the moisture meter probe 421 wherein, the detection area of the moisture meter probe 421 on the conveyor belt 300 at least partially overlaps with the first area.
  • the moisture meter probe 421 can also be set to emit microwaves, that is, the moisture meter probe can be set as a microwave transmitter, and a microwave receiver for receiving the remaining microwaves is set under the conveying belt 300 . That is, the present application uses microwaves to detect the moisture content in the material.
  • the working principle is as follows: when the microwave with a specific frequency of 2.4GHZ penetrates the material on the conveyor belt 300, the 0-H bond of the water molecules in the material will absorb the microwave with a specific frequency. energy. After the microwave energy emitted by the microwave transmitter penetrates the material and the belt, the moisture meter probe 421 will receive the remaining microwave energy.
  • the signal receiver 422 calculates the percentage content of moisture, that is, the moisture content of the material, according to the attenuation of microwave energy generated when the microwave penetrates the medium.
  • the straight line between the moisture meter probe 421 and the center point of the first region is perpendicular to the conveying belt 300 . That is, the moisture meter probe 421 is located directly above the material leveling device 41.
  • the moisture meter probe 421 emits microwaves
  • the microwaves can penetrate the materials in the first area, so most of the materials detected by the moisture meter 42 are located in the first area.
  • the materials in one area, that is, the materials detected by the moisture analyzer 42 are mostly flattened materials. Since the materials in the first area are flattened and have a uniform thickness, the detection rate of the material moisture content detection device is improved. The accuracy of the moisture content of the material.
  • FIG. 7 shows a schematic structural diagram of the material moisture detection device 400 provided by the present application.
  • the material moisture detection device 400 further includes: disposed above the conveying belt 300 The cleaning device 45, the cleaning device 45 is configured to clean the microwave transmitter or microwave receiver when the microwave transmitter or microwave receiver above the conveyor belt 300 is not working, specifically when the moisture meter probe 421 is not working in FIG. 7 , clean the moisture meter probe 421.
  • the cleaning device 45 cleans the moisture meter probe 421, and when the moisture meter probe 421 works again next time, the dust on the moisture meter probe 421 is cleaned, therefore, the moisture meter probe 421 is improved. 42 Accuracy of detected moisture content.
  • the cleaning device 45 includes: a compressed air supply device; and a compressed air pipe, the compressed air pipe includes an inlet and an outlet, and the inlet is communicated with the outlet of the compressed air supply device; the compressed air enters the compressed air pipe through the inlet and is ejected through the outlet to achieve Clean up debris, where the outlet of the compressed gas pipe corresponds to the microwave transmitter or microwave receiver to be cleaned.
  • the outlet of the compressed gas pipe can be set on the same horizontal line as the moisture meter probe 421 (used as a microwave receiver). It is further ensured that the compressed air pipe can fully clean the moisture meter probe 421 .
  • FIG. 4 shows a schematic structural diagram of a material moisture content detection device 400 provided by the present application.
  • the material moisture content detection device 400 further includes: a lifting mechanism 46 for lifting
  • the mechanism 46 is configured to drive the material leveling device 41 and the moisture measuring instrument 42 to move in a first direction, and the first direction is perpendicular to the conveying belt 300 .
  • the lifting mechanism 46 can drive the material leveling device 41 and the moisture measuring instrument 42 to move in the first direction, which can not only adjust the distance between the material leveling device 41 and the material conveying belt 300 according to the thickness of the material, but also can adjust the distance between the material leveling device 41 and the material conveying belt 300 when the material is leveled.
  • the lifting mechanism 46 may be mounted on the mounting bracket 600 , and the driving structure 46 may drive the mounting bracket 600 to move along the first direction. Since both the material leveling device 41 and the moisture measuring instrument 42 are fixed on the mounting bracket 600, the lifting mechanism 46 is mounted on the mounting bracket 600, the lifting mechanism 46 can drive the mounting bracket 600 to move along the first direction, and the mounting bracket 600 drives The material leveling device 41 and the moisture meter 42 move along the first direction.
  • the mounting bracket 600 includes two vertical brackets 62 , a first horizontal bracket 61 and a second horizontal bracket 63 , and the two vertical brackets 62 are respectively fixed to the material conveying bracket 500 in the width direction.
  • the two ends of the first horizontal bracket 61 and the two ends of the second horizontal bracket 63 are respectively fixed on the two vertical brackets 61
  • the second horizontal bracket 62 is located above the first horizontal bracket 61 .
  • the vertical bracket 62 in the mounting bracket 600 may include a first sub-vertical bracket and a second sub-vertical bracket.
  • the lifting mechanism 46 can drive the mounting bracket 600 to move up and down, and the installation between the lifting mechanism 46 and the mounting bracket 600 can be installed in the following two ways:
  • the first installation method the first sub-vertical support is fixed on the conveying support 500, the lifting mechanism 46, the material leveling device 41 and the moisture analyzer 42 are all fixed on the second sub-vertical support, and the driving structure 46
  • the second sub-vertical support can be driven to move up and down relative to the first sub-vertical support, that is, the lifting mechanism 46 drives the second sub-vertical support to move up and down, so as to adjust the material leveling device 41 and the feeding belt 300 according to the thickness of the material It is also possible to increase the distance between the material leveling device 41 and the conveying belt 300 when the material leveling device 41 is not in use, so that the material leveling device 41 does not affect the conveying of materials.
  • the second installation method the lifting mechanism 46 is arranged under the conveying belt 300, and the first sub-vertical support is connected with the lifting structure 46, and the first sub-vertical support is fixedly connected with the second sub-vertical support; Both the flat device 41 and the moisture analyzer 42 are fixed on the second sub-vertical support.
  • the lifting mechanism 46 can drive the first sub-vertical support to move up and down relative to the feeding belt 300, that is, it can drive the second sub-vertical support to move up and down relative to the feeding belt 300, that is, the lifting mechanism 46 drives the first sub-vertical support to move up and down.
  • the up and down movement drives the up and down movement of the second sub-vertical support, that is, the distance between the material leveling device 41 and the conveying belt 300 can be adjusted according to the thickness of the material, and it can also be used when the material leveling device 41 is not in use. , to increase the distance between the material leveling device 41 and the conveying belt 300, so that the material leveling device 41 does not affect the conveying of materials.
  • the material conveying device further includes a driving mechanism, wherein the driving mechanism is used to provide power for the lifting mechanism.
  • the driving mechanism includes an air cylinder or a motor, that is, the lifting mechanism 46 can be driven by a motor or an air cylinder.
  • the specific driving modes of the lifting mechanism 46 and the mounting bracket 600 can be other than the above-mentioned driving modes. Therefore, the present application does not limit the driving method of the lifting mechanism 46 to drive the mounting bracket 600 .
  • the specific mechanical structure of the lifting mechanism 46 is not limited, as long as the lifting mechanism 46 can drive the mounting bracket 600 to move up and down relative to the conveying belt 300 . Therefore, the application does not limit the specific structure of the lifting mechanism 46 .
  • the present application provides a schematic structural diagram of a concrete production and conveying system.
  • the concrete production and conveying system includes: a material silo, a conveying belt 300 and a mixer, and the material silo is located in the conveying system. Upstream of the belt 300, the discharge end of the conveying belt 300 is connected to the mixer; Wherein, the structure of the material moisture content detection device 400 adopts the structure of the material moisture content detection device 400 as described above.
  • the material moisture content detection device 400 includes a material leveling device 41 , and the material leveling device 41 includes a scraper 413 , a first side plate 411 and a second side plate 412 .
  • the first side plate 411 and the second side plate 412 can block the first side plate 411 and the second side plate 412 from being located in the first area.
  • the material outside and not leveled enters the first area under the action of vibration, therefore, the thickness of the material located in the first area is uniform.
  • the moisture analyzer 42 detects the moisture content of the material located in the first area , since the thickness of the material in the first area is uniform, the accuracy of the moisture content detection data is increased.
  • the present application provides a method for detecting the moisture content of a material.
  • FIG. 8 shows a schematic flowchart of a method for detecting the moisture content of a material provided by the present application.
  • the method for detecting the moisture content of a material is applicable The material moisture content detection device shown in Figure 5.
  • the material moisture content detection device 400 includes: a material leveling device 41, which is arranged above the conveying belt 300; and a moisture analyzer 42, which is configured to detect the The moisture content of the material leveled by the material leveling device 41 ; the detector and the controller; wherein the controller is in communication link with the detector and the moisture meter 42 .
  • the material leveling device 41 includes: a first side plate 411 and a second side plate 412, wherein the first side plate 411 and the second side plate 412 are opposite and arranged at intervals; Between the first side plate 411 and the second side plate 412, the first end of the scraper plate 413 is fixedly connected to the first side plate 411, the second end of the scraper plate 413 is fixedly connected to the second side plate 412, and the first end of the scraper plate 413 is fixedly connected to the second side plate 412. One end and the second end are opposite ends, wherein the scraper plate 413, the first side plate 411 and the second side plate 412 together form the first area Q.
  • the scraper plate 413 passes through a pair of The material under the scraper 413 is leveled.
  • the detection method of the moisture content of the material comprises the following steps:
  • Step S101 the controller acquires the material leveling signal sent by the detector, wherein the material leveling signal is used to indicate that the material has been leveled by the material leveling device 41;
  • the detector is a microswitch 43 disposed inside the scraper 413 ; the controller is connected in communication with the microswitch 43 and the moisture analyzer 42 .
  • step S101 may specifically include: the controller obtains the material leveling signal sent by the micro switch 43, and the material leveling signal generated by the micro switch 43 can indicate that the material located in the first area Q The material is leveled by the material leveling device 41 .
  • Step S102 the controller generates a first control signal according to the material leveling signal, and transmits the first control signal to the moisture analyzer 42;
  • Step S103 the moisture analyzer 42 detects the moisture content of the material leveled by the material leveling device 41 under the condition of receiving the first control signal.
  • the detector In the method for detecting the moisture content of a material provided by the present application, the detector generates a first control signal according to the obtained material leveling signal, and the moisture analyzer 42 detects the leveling by the material leveling device 41 when receiving the first control signal.
  • the moisture content of the leveled material since the material located in the first area Q is leveled by the material leveling device 41, the thickness of the material in the first area Q is uniform.
  • the accuracy of the moisture content detection data is increased.
  • FIG. 9 shows a schematic flowchart of another method for detecting the moisture content of materials provided by the present application.
  • step S103 the moisture analyzer 42 receives the first control In the case of a signal, detecting the moisture content of the material leveled by the material leveling device 41
  • step S103 specifically includes the following steps:
  • Step S1031 the moisture analyzer 42 detects the moisture content of the material leveled by the material leveling device 41 after a first preset time period after receiving the first control signal.
  • the moisture measuring instrument 42 detects the moisture content of the material leveled by the material leveling device 41, which increases the moisture content measurement method.
  • the probability of the material detected by the instrument is the leveled material, that is, the accuracy of the moisture content of the material is improved.
  • the method for detecting the moisture content of the material further includes the following steps:
  • Step S100 The controller determines the first preset duration according to the distance between the scraper 413 and the detector and the linear speed of the conveying belt.
  • the first preset duration is determined according to the distance between the scraper 413 and the detector and the linear speed of the conveying belt.
  • the method for detecting the moisture content of the material is suitable for the device for detecting the moisture content of the material shown in FIG. 6 .
  • the moisture meter 42 includes: a microwave transmitter (not shown in FIG. 6 ), a moisture meter probe 421 And the signal receiver 422, wherein the moisture meter probe 421 is arranged above the conveying belt; in this case, step S100 may specifically include the following steps:
  • Step S1001 the controller obtains the first preset duration according to the distance between the scraper 413 and the moisture meter probe 421 and the linear speed of the conveying belt.
  • the first preset duration is obtained according to the distance between the scraper 413 and the moisture meter probe 421 and the linear speed of the conveying belt.
  • FIG. 10 shows a schematic flowchart of another method for detecting the moisture content of a material provided by the present application.
  • the method for detecting the moisture content of the material is further It includes the following steps:
  • Step S104 the controller obtains multiple moisture contents of the material obtained by the moisture analyzer 42 detecting the material leveled by the material leveling device 41 multiple times within the first time period;
  • the start time of the first duration is the end time of the first preset duration.
  • Step S105 The controller generates the average moisture content of the material according to the multiple moisture contents of the material, that is, the controller averages the multiple moisture contents of the material leveled by the material leveling device 41 detected within the first time period. Therefore, the average moisture content of the material is generated, and the average moisture content can be used as the moisture content of the material leveled by the material leveling device 41 .
  • the moisture analyzer 42 detects multiple moisture contents of the material multiple times within a period of time, and analyzes the multiple moisture contents of the material.
  • the average moisture content is calculated to obtain the average moisture content of the material, which makes the detected moisture content of the material more accurate.
  • FIG. 11 shows a schematic flowchart of a method for detecting the moisture content of a material provided by the present application.
  • the detection method for the moisture content of the material also includes:
  • Step S106 the controller obtains the material unloading completion signal
  • Step S107 The controller determines the material's quality according to the material unloading completion signal, the distance between the material silo and the scraper 413 in the material leveling device 41 in the material moisture content detection device, and the linear speed of the conveying belt 300 . type of material;
  • Step S108 the controller obtains the moisture content correction coefficient corresponding to the material type according to the material type of the material.
  • Step S109 The controller corrects the average moisture content of the material according to the moisture content correction coefficient to generate a moisture content correction value of the material.
  • the controller determines the material type of the material according to the material unloading completion signal, the distance between the material bin and the scraper in the material leveling device in the material moisture content detection device, and the linear speed of the conveying belt.
  • the moisture content correction coefficient corresponding to the material type is obtained, and the average moisture content obtained by the detection is corrected to obtain a more accurate material moisture content, which improves the detection accuracy of the material moisture content.
  • FIG. 12 shows a schematic flowchart of a method for detecting moisture content of a material provided by the present application, and the method for detecting moisture content of a material is applicable to the device for detecting moisture content of a material shown in FIG. 7
  • the material moisture content detection device further includes: a cleaning device 45 disposed above the conveying belt 300; in this case, in step S103 (the moisture analyzer 42 receives the first control signal in the case of , after detecting the moisture content of the material leveled by the material leveling device 41 ), the detection method for the moisture content of the material also includes:
  • Step S201 the controller acquires the material production end signal; that is, the material production end signal, that is, the work of detecting the moisture content of the material ends;
  • Step S202 the controller generates a second control signal according to the material production end signal.
  • Step S203 The cleaning device 45 performs cleaning work when receiving the second control signal.
  • the cleaning device 45 is automatically controlled to work, so that the cleaning device 45 starts to clean the moisture measuring instrument.
  • the moisture meter works again next time, since the dust on the moisture meter probe 421 is cleaned, the detection accuracy of the moisture meter 42 is improved.
  • the cleaning device 45 includes: a compressed air supply device (not shown in FIG. 7 ); and a compressed air pipe; the moisture meter includes: a moisture meter probe 421 .
  • step S203 specifically includes: the solenoid valve of the compressed air pipe is powered on under the control of the second control signal, and the cleaning work is performed.
  • the solenoid valve of the compressed air pipe in the cleaning device is automatically controlled to be energized, so that the cleaning device starts to clean the probe of the moisture analyzer.
  • FIG. 13 shows a schematic flowchart of a method for detecting the moisture content of a material provided by the present application.
  • the detection method of the moisture content of the material also includes:
  • Step S204 the controller generates first prompt information according to the material generation end signal, and the first prompt information is used to prompt that the moisture meter probe 421 needs to be cleaned;
  • the first prompt information can be displayed on the system operation display interface, the user selects "probe cleaning” according to the first prompt information, and then the controller generates the third control information according to the user's selected information, that is, the "cleaning information" input by the user , namely step S205.
  • Step S205 the controller obtains the cleaning information input by the user, and generates a third control signal
  • Step S206 The cleaning device 45 performs cleaning work when receiving the third control signal.
  • the probe of the moisture meter can be manually cleaned according to the user's choice.
  • the cleaning device 45 includes: a compressed air supply device (not shown in FIG. 7 ); and a compressed air pipe; the moisture meter includes: a moisture meter probe 421 .
  • step S206 specifically includes: the solenoid valve of the compressed air pipe is powered on under the control of the third control signal, and the cleaning work is performed.
  • FIG. 14 shows a schematic flowchart of a method for detecting moisture content of a material provided by the present application.
  • the method for detecting moisture content of a material further includes:
  • Step S207 the controller obtains the cleaning information input by the user
  • the first prompt information can be displayed on the system operation display interface.
  • the user selects "probe cleaning” according to the first prompt information, and then the controller records the user's request for "cleaning the moisture meter probe" according to the user's selected information.
  • step S207 can be executed at any time during the working process of the moisture meter probe.
  • Step S208 the controller obtains the working state information of the moisture analyzer in real time; when the controller obtains the working state information of the moisture analyzer as stop working information, a fourth control signal is generated according to the cleaning information, that is, step S209,
  • Step S209 when the controller obtains that the working state information of the moisture analyzer is stop working information, it generates a fourth control signal according to the cleaning information;
  • Step S2091 The cleaning device 45 performs cleaning work when receiving the second control signal.
  • the user can manually select the request to clean the moisture meter probe at any time, the controller monitors the working status of the moisture analyzer in real time, and when the moisture analyzer is not working, the cleaning device can perform the cleaning work .
  • the cleaning device 45 includes: a compressed air supply device (not shown in FIG. 7 ); and a compressed air pipe; the moisture meter includes: a moisture meter probe 421 .
  • step S208 may specifically include: the controller obtains the working state information of the moisture meter probe 421 in real time; when the controller obtains the working state information of the moisture meter probe 421 as stop working information, generating the fourth information according to the cleaning information control signal;
  • Step S209 may specifically include: when the controller obtains that the working state information of the moisture meter probe 421 is stop working information, generating a fourth control signal according to the cleaning information;
  • Step S2091 may specifically include: the solenoid valve of the compressed air pipe is powered on under the control of the fourth control signal, and performs cleaning work.
  • FIG. 15 shows a schematic flowchart of a method for detecting moisture content of a material provided by the present application, and the method for detecting moisture content of a material is applicable to the device for detecting moisture content of a material shown in FIG. 4 , such as
  • the material moisture content detection device 400 further includes: a lifting mechanism 46 configured to drive the material leveling device 41 and the moisture measuring instrument 42 to move in a first direction, which is perpendicular to the conveying belt 300 .
  • the method for detecting the moisture content of the material further includes: :
  • Step S301 the controller acquires first information, which is used to indicate that the moisture content of the material does not need to be detected;
  • Step S302 the controller generates fifth control information according to the first information.
  • Step S303 under the control of the fifth control information, the lifting mechanism 46 drives the material leveling device 41 and the moisture measuring instrument 42 to move in the first direction and away from the conveying belt 300 . That is, when the material does not need to be tested for moisture content, the material leveling device 41 and the moisture measuring instrument 42 are lifted away from the conveying belt, so that the scraper 413 will not hinder the material.
  • the controller includes a memory and a processor, and the memory and the processor are connected in communication with each other.
  • the processor may be a central processing unit (Central Processing Unit, CPU).
  • the processor may also be other general-purpose processors, digital signal processors (Digital Signal Processors, DSPs), application specific integrated circuits (Application Specific Integrated Circuits, ASICs), Field-Programmable Gate Arrays (Field-Programmable Gate Arrays, FPGAs) or other Chips such as programmable logic devices, discrete gate or transistor logic devices, discrete hardware working components, or a combination of the above types of chips.
  • the memory can be used to store non-transitory software programs, non-transitory computer-executable programs, and modules.
  • the processor executes various functional applications and data processing of the processor by executing non-transitory software programs, instructions and modules stored in the memory.
  • the memory may include a storage program area and a storage data area, wherein the storage program area may store an operating system and an application program required by at least one function; the storage data area may store data created by the processor, and the like. Additionally, the memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory may optionally include memory located remotely from the processor, such remote memory being connectable to the processor via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • Computer instructions are stored in the memory, and the processor executes at least some of the steps S100-S109, S201-S2091, and S301-S303 as described above by executing the computer instructions.

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Abstract

L'invention concerne un appareil de mesure de teneur en humidité de matériau (400) et un procédé de mesure de teneur en humidité de matériau, et un système de production et de transport de béton. L'appareil de mesure de teneur en humidité de matériau (400) comprend : un appareil de mise à niveau de matériau (41) disposé au-dessus d'une courroie de transport de matériau (300), et un testeur d'humidité (42) ; l'appareil de mise à niveau de matériau (41) comprend : une plaque de raclage de matériau (413) et une première plaque latérale (411) et une seconde plaque latérale (412) qui sont reliées à deux extrémités de la plaque de raclage de matériau (413), à savoir que la plaque de raclage de matériau (413) est disposée entre la première plaque latérale (411) et la seconde plaque latérale (412). Lorsqu'un matériau est transporté par la courroie de transport de matériau (300), la plaque de raclage de matériau (413) nivelle le matériau passant sous la plaque de raclage de matériau (413). Lorsque le matériau nivelé continue à être transporté, la première plaque latérale (411) et la seconde plaque latérale (412) peuvent empêcher un matériau qui n'est pas nivelé d'entrer dans le matériau nivelé sous l'action d'une vibration, de telle sorte que l'épaisseur du matériau nivelé par l'appareil de nivellement de matériau (41) est uniforme, et la précision de la mesure de teneur en humidité est améliorée.
PCT/CN2022/074039 2021-04-30 2022-01-26 Appareil et procédé de mesure de teneur en humidité d'un matériau, et système de production et de transport de béton WO2022227745A1 (fr)

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Publication number Priority date Publication date Assignee Title
CN113155867A (zh) * 2021-04-30 2021-07-23 三一汽车制造有限公司 物料含水率检测装置及其检测方法、混凝土生产输送系统
CN117761113A (zh) * 2023-12-22 2024-03-26 四川蜀道建筑科技有限公司 一种砂含水率在线监测装置及方法

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115948A (en) * 1980-01-18 1981-09-11 Hitachi Metals Ltd Moisture measuring device of granuler body
US4475080A (en) * 1982-05-10 1984-10-02 Walker Charles W E Microwave moisture measurement of moving particulate layer after thickness leveling
JPH06129981A (ja) * 1992-10-13 1994-05-13 Sumitomo Metal Ind Ltd マイクロ波による粉粒体の水分測定装置
CN1201834A (zh) * 1998-05-05 1998-12-16 冶金工业部钢铁研究总院 烧结混合料在线测控水份方法及装置
CN207488182U (zh) * 2017-11-27 2018-06-12 成都精准混凝土有限公司 一种检测骨料含水率的红外检测系统
CN207842115U (zh) * 2018-01-29 2018-09-11 江西草珊瑚口腔护理用品有限公司 蚊香的坯料压片机
CN208998908U (zh) * 2018-11-21 2019-06-18 中化重庆涪陵化工有限公司 肥料造粒机返料计量装置
CN110542696A (zh) * 2019-10-16 2019-12-06 潍坊力创电子科技有限公司 物料在线水分测量装置及其测量方法
CN212820473U (zh) * 2020-07-08 2021-03-30 福州新福兴浮法玻璃有限公司 一种浮法玻璃原料硅砂上料除铁装置
CN212904598U (zh) * 2020-08-04 2021-04-06 天津美腾科技股份有限公司 灰水检测仪及灰水检测系统
CN113155867A (zh) * 2021-04-30 2021-07-23 三一汽车制造有限公司 物料含水率检测装置及其检测方法、混凝土生产输送系统

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115948A (en) * 1980-01-18 1981-09-11 Hitachi Metals Ltd Moisture measuring device of granuler body
US4475080A (en) * 1982-05-10 1984-10-02 Walker Charles W E Microwave moisture measurement of moving particulate layer after thickness leveling
JPH06129981A (ja) * 1992-10-13 1994-05-13 Sumitomo Metal Ind Ltd マイクロ波による粉粒体の水分測定装置
CN1201834A (zh) * 1998-05-05 1998-12-16 冶金工业部钢铁研究总院 烧结混合料在线测控水份方法及装置
CN207488182U (zh) * 2017-11-27 2018-06-12 成都精准混凝土有限公司 一种检测骨料含水率的红外检测系统
CN207842115U (zh) * 2018-01-29 2018-09-11 江西草珊瑚口腔护理用品有限公司 蚊香的坯料压片机
CN208998908U (zh) * 2018-11-21 2019-06-18 中化重庆涪陵化工有限公司 肥料造粒机返料计量装置
CN110542696A (zh) * 2019-10-16 2019-12-06 潍坊力创电子科技有限公司 物料在线水分测量装置及其测量方法
CN212820473U (zh) * 2020-07-08 2021-03-30 福州新福兴浮法玻璃有限公司 一种浮法玻璃原料硅砂上料除铁装置
CN212904598U (zh) * 2020-08-04 2021-04-06 天津美腾科技股份有限公司 灰水检测仪及灰水检测系统
CN113155867A (zh) * 2021-04-30 2021-07-23 三一汽车制造有限公司 物料含水率检测装置及其检测方法、混凝土生产输送系统

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