CN216423027U - Aggregate moisture content detection mechanism, system and mixing plant - Google Patents

Abstract

The utility model relates to a concrete production technical field provides aggregate moisture content detection mechanism, system and stirring station, include: the material taking device comprises a material taking hopper and a driving mechanism, wherein the driving mechanism is connected with the material taking hopper so as to drive the material taking hopper to be switched between an initial state and a material taking state, the material taking hopper is horizontally or vertically arranged in the initial state, and the material taking hopper is obliquely arranged in the material taking state; and the moisture content detection device is connected with the material taking hopper in a material taking state. The utility model discloses can realize the accurate detection to the aggregate moisture content, and then improve the quality of concrete.

Description

Aggregate moisture content detection mechanism, system and mixing plant

Technical Field

The utility model relates to a concrete production technical field especially relates to a aggregate moisture content detection mechanism, system and stirring station.

Background

In the production process of a concrete mixing plant, aggregate is commonly used, the aggregate is one of main components of concrete and plays a role in framework or filling, the aggregate is divided into coarse aggregate and fine aggregate, the aggregate with the particle size larger than 4.75mm is called coarse aggregate and commonly called stone, and commonly used broken stone and pebble are called stone; the aggregate with the particle size of less than 4.75mm is called fine aggregate and commonly called sand, and the sand is divided into natural sand and artificial sand according to the production source. When concrete is produced, if the moisture content of the aggregate does not meet the construction requirements, the quality of the concrete can be seriously influenced, and potential safety hazards exist. Therefore, a device capable of detecting the moisture content of the aggregate is needed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a aggregate moisture content detection mechanism, system and mixing station can realize the accurate detection to aggregate moisture content, and then improves the quality of concrete.

The utility model provides a aggregate moisture content detection mechanism, include: the material taking device comprises a material taking hopper and a driving mechanism, wherein the driving mechanism is connected with the material taking hopper so as to drive the material taking hopper to be switched between an initial state and a material taking state, the material taking hopper is horizontally or vertically arranged in the initial state, and the material taking hopper is obliquely arranged in the material taking state; and the moisture content detection device is connected with the material taking hopper in a material taking state.

According to the utility model provides a pair of aggregate moisture content detection mechanism, actuating mechanism includes first drive arrangement and first connecting rod, the first end of first connecting rod with first drive arrangement links to each other, the second end of first connecting rod with the material end that connects of getting the hopper is articulated, just get the rotatable setting of hopper.

According to the utility model provides a pair of aggregate moisture content detection mechanism, actuating mechanism includes the body frame, be equipped with second connecting rod and second drive arrangement on the body frame side by side, get the hopper set up in the below of body frame, the material receiving end of getting the hopper with the second connecting rod is articulated, the blanking end of getting the hopper with second drive arrangement is articulated.

According to the utility model provides a pair of aggregate moisture content detection mechanism, second drive arrangement is cylinder, pneumatic cylinder or electric putter.

According to the utility model provides a pair of aggregate moisture content detection mechanism, be equipped with weighing sensor on the getting hopper, work as when the initial condition of getting hopper was the level setting, based on weighing sensor's detected signal control the getting hopper switches over the state.

According to the utility model provides a pair of aggregate moisture content detection mechanism, moisture content detection device includes the detection case, the detection case with be in and get the material state get the hopper and link to each other, be equipped with non-contact microwave moisture meter and vibrator on the detection case.

According to the utility model provides a pair of aggregate moisture content detection mechanism, non-contact microwave moisture meter with the vibrator links to each other with the controller respectively.

According to the utility model provides a pair of aggregate moisture content detection mechanism, still including connecing the workbin, connect the workbin set up in get the hopper with between the detection case, the bottom that connects the workbin is equipped with ejection of compact valve, the top of detection case be equipped with ejection of compact valve matched with connects the material mouth.

The utility model also provides an aggregate moisture content detecting system, including first material feeding unit, second material feeding unit and aggregate moisture content detection mechanism, the hopper set up in first material feeding unit's pay-off end, second material feeding unit set up in moisture content detection device's below.

The utility model also provides a mixing station, include aggregate moisture content detecting system.

The utility model provides an aggregate moisture content detection mechanism, system and stirring station, receive the aggregate in the aggregate storehouse through the fetching hopper, can drive the fetching hopper through actuating mechanism and switch between the initial condition of level or vertical setting and the material state of getting that the slope set up, examine time measuring to the aggregate, control the fetching hopper is switched to getting the material state by initial condition, when the material volume of getting reaches the settlement detection volume, the fetching hopper of controlling again is switched to initial condition by getting the material state, the realization will accord with the aggregate of detection volume and carry to moisture content detection device and detect the moisture content of aggregate through the fetching hopper. Therefore, the utility model discloses the unloading volume that can the accurate control aggregate just detects the moisture content of aggregate to the water yield of adjustment aggregate prescription, and then improve the production quality of concrete.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is one of the schematic structural diagrams of the aggregate moisture content detection system provided by the present invention;

FIG. 2 is a second schematic structural view of the aggregate moisture content detection system provided by the present invention;

fig. 3 is a schematic view of the main frame and the moving mechanism according to the present invention;

reference numerals:

1: a first feeding device; 2: a material taking hopper; 3: a first driving device; 4: a first link;

5: a first hinge; 6: a second hinge; 7: a main frame; 8: a second link;

9: a second driving device; 10: a detection box; 11: a transmitting probe; 12: receiving a probe;

13: a vibrator; 14: a material receiving box; 15: a discharge valve; 16: a material receiving port;

17: a second feeding device; 18: a feeding port; 19: a third driving device; 20: a guide rail;

21: a main body; 22: a pulley; 23: a blanking channel; 24: and a third link.

Detailed Description

To make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention are combined to clearly and completely describe the technical solutions of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The aggregate moisture content detection mechanism, system and mixing station of the present invention will be described with reference to fig. 1 to 3.

According to the utility model discloses an embodiment, the utility model provides an aggregate moisture content detection mechanism mainly includes: extracting device and moisture content detection device. Wherein, extracting device includes fetching hopper 2 and actuating mechanism, and fetching hopper 2 is used for receiving the aggregate in the aggregate storehouse, and actuating mechanism links to each other with fetching hopper 2 to drive fetching hopper 2 and switch between initial condition and fetching material state, at initial condition, fetching hopper 2 is the level or vertical setting, and at fetching material state, fetching hopper 2 is the slope setting.

The moisture content detection device is connected with the material taking hopper 2 in a material taking state, and when the material taking state is achieved, the aggregates in the material taking hopper 2 fall into the moisture content detection device, and moisture content detection is carried out on the aggregates. The utility model discloses moisture content detection device's concrete type does not do special restriction, as long as can detect the moisture content of aggregate can, for example can be contact moisture meter, also can be non-contact microwave moisture meter.

It should be understood that the utility model discloses when getting hopper 2 is in initial condition, moisture content detection device is disconnected with getting hopper 2, and moisture content detection device does not receive the aggregate of getting hopper 2, is in the non-material state of getting promptly.

The embodiment of the utility model provides a can carry the aggregate that accords with the detection volume to moisture content detection device through extracting device and detect the moisture content of aggregate, it is specific: the aggregate in the aggregate bin is received through the material taking hopper 2, the material taking hopper 2 can be driven to switch between an initial state and a material taking state through the driving mechanism, the material taking hopper 2 is horizontally or vertically arranged in the initial state, the material taking hopper 2 is obliquely arranged in the material taking state, the aggregate can conveniently fall into the moisture content detection device, when the aggregate is detected, the material taking hopper 2 is controlled to switch from the initial state to the material taking state, and when the material taking amount reaches a set detection amount, the material taking hopper 2 is controlled to switch from the material taking state to the initial state, so that accurate blanking is realized; in addition, get hopper 2 in the blanking in-process, actuating mechanism can drive and get hopper 2 and get the material state and frequently switch at initial condition, realizes lasting swing from top to bottom with little amplitude, plays the vibration effect, avoids the card material, improves unloading efficiency. Therefore, the utility model discloses the unloading volume that can the accurate control aggregate just can detect the moisture content of aggregate to the water yield of adjustment aggregate prescription, and then improve the production quality of concrete.

In one embodiment, the top or other positions of the moisture content detection device are provided with a weighing sensor (not shown in the figure) for detecting the amount of the discharged material, the weighing sensor is connected with a controller (not shown in the figure), and when the amount of the discharged material reaches the set detection amount of the controller, the material taking hopper 2 is driven by a driving mechanism to reset to an initial state so as to pack up the material taking hopper 2 and realize accurate material taking.

In one embodiment, as shown in fig. 1, the driving mechanism comprises a first driving device 3 and a first connecting rod 4, a first end of the first connecting rod 4 is connected with a driving end of the first driving device 3, a second end of the first connecting rod 4 is hinged with a material receiving end of the material taking hopper 2, and the material taking hopper 2 is rotatably arranged. In this example, the main body of the material taking hopper 2 is rotatably arranged on a first hinge 5, and the material receiving end of the material taking hopper 2 is hinged with the second end of the first connecting rod 4 through a second hinge 6. In this embodiment, the initial state of the material taking hopper 2 may be a horizontal setting or a vertical setting.

The specific type of the first driving device 3 is not particularly limited, and may be, for example, a linear driving device such as a cylinder, a hydraulic cylinder, or an electric push rod. The initial state of the material taking hopper 2 can be set as an example for the horizontal state, the driving end of the first driving device 3 stretches and retracts to drive the first connecting rod 4 to pull the material taking hopper 2 to swing up and down around the first hinge 5, when materials need to be taken, the driving end of the first driving device 3 contracts to drive the first connecting rod 4 to move rightwards, the first driving device 3 controls the blanking end of the material taking hopper 2 to swing downwards to form an inclined material taking state, aggregates slide into the moisture content detection device below along the material taking hopper 2 under the action of self gravity, the material taking is stopped when the falling amount of the aggregates reaches a set detection amount, at the moment, the driving end of the first driving device 3 stretches out to drive the first connecting rod 4 to move leftwards, and the blanking end of the material taking hopper 2 is controlled to swing upwards to reset to the horizontal initial state.

And, when the initial condition of getting hopper 2 was vertical setting, can realize the interval and get the material. Specifically, because aggregate storehouse lasts the blanking, when needs are got the material, the blanking end of first drive arrangement 3 drive sampling hopper 2 upwards swings, become the material state of getting that the slope set up by the initial condition of vertical setting, sampling hopper 2 receives the aggregate in the aggregate storehouse and carries to the moisture content detection device of below in, when aggregate whereabouts volume reaches and sets for the detection volume and stop getting the material, and at this moment, first drive arrangement 3 drives the blanking end of sampling hopper 2 downward swing again and resets to vertical initial condition, and sampling hopper 2 does not receive the aggregate. It can be understood that, because aggregate storehouse and moisture content detection device are located the both sides of getting hopper 2 respectively, stagger in the space, carry through getting the hopper and get the material, consequently, get the position of hopper 2 through the adjustment, can make when getting hopper 2 and be in vertical setting, get the aggregate in the hopper 2 does not receive the aggregate storehouse.

In one embodiment, as shown in fig. 1, the first hinge 5 of the material taking hopper 2 is located above the outer side of the moisture content detection device, so that the swinging of the material taking hopper 2 is not affected, and the material taking hopper 2 cannot receive materials when being vertically arranged and can receive materials and convey the materials to the moisture content detection device when being in a material taking state, thereby realizing material taking at intervals.

In one embodiment, as shown in fig. 2, the driving mechanism includes a main frame 7, the main frame 7 is disposed at a feeding end of a first feeding device 1, the main frame 7 may be flush and butt-jointed with the feeding end of the first feeding device 1, or may be located below the feeding end of the first feeding device 1, a second connecting rod 8 and a second driving device 9 are disposed on the main frame 7 side by side at intervals, a material taking hopper 2 is suspended below the main frame 7, a material receiving end of the material taking hopper 2 is hinged to the second connecting rod 8, and a material dropping end of the material taking hopper 2 is hinged to the second driving device 9. The material taking hopper 2 can be driven to swing up and down around the hinge point of the second connecting rod 8 by the second driving device 9. In this embodiment, the initial state of the hopper 2 is a horizontal setting. It will be appreciated that in order to facilitate the falling of the aggregates of the first feeding device 1 into the take-off hopper 2, the main frame 7 is provided with a drop channel 23 in the middle, as shown in fig. 3.

As shown in fig. 2, the drive mechanism further includes: the moving mechanism is slidably arranged on the main frame 7, the second connecting rod 8 and the second driving device 9 are arranged on the moving mechanism, and the driving end of the third driving device 19 is connected with the moving mechanism to drive the moving mechanism to be close to or far away from the first feeding device 1, so that the material taking hopper 2 is driven to be close to or far away from the first feeding device 1, and material taking at intervals is achieved. Specifically, when materials need to be taken, the third driving device 19 drives the moving mechanism to move leftwards to drive the material taking hopper 2 to be close to the feeding end of the first feeding device 1, the second driving device 9 controls the material taking hopper 2 to swing downwards to form an inclined material taking state, aggregates slide into the moisture content detection device below along the material taking hopper 2 under the action of self gravity, the materials are stopped to be taken when the falling amount of the aggregates reaches a set detection amount, at the moment, the second driving device 9 controls the material taking hopper 2 to swing upwards to reset to a horizontal initial state, and the third driving device 19 drives the moving mechanism to move rightwards to drive the material taking hopper 2 to be far away from the feeding end of the first feeding device 1.

In one embodiment, as shown in fig. 3, the main frame 7 is provided with guide rails 20 at front and rear sides thereof, and the moving mechanism is slidably disposed on the guide rails 20.

In one embodiment, the main frame 7 is provided with sliding grooves on the front and rear sides thereof, and the moving mechanism is slidably disposed in the sliding grooves.

According to the utility model discloses an embodiment, as shown in fig. 2 and 3, the moving mechanism includes main part 21, and both sides are equipped with pulley 22 respectively around main part 21, and pulley 22 slidable sets up in guide rail 20 or spout, and second connecting rod 8 and second drive arrangement 9 set up on main part 21, and main part 21 links to each other with third drive arrangement 19's drive end, and it slides to drive through third drive arrangement 19 drive pulley 22, drives and gets hopper 2 and remove.

According to the embodiment of the present invention, the driving end of the third driving device 19 is connected to the main body 21 of the moving mechanism through the third connecting rod 24, which facilitates the transmission.

According to the embodiment of the present invention, the specific types of the second driving device 9 and the third driving device 19 are not particularly limited, and may be, for example, a linear driving device such as a cylinder, a hydraulic cylinder, or an electric push rod.

According to the utility model discloses an embodiment is equipped with weighing sensor (not shown in the figure) on the fetching hopper 2, and weighing sensor links to each other with the controller, and when 2 initial conditions of fetching hopper were the level setting, the controller can be based on weighing sensor's detection signal control fetching hopper 2 switching state. Specifically, when the initial state that gets hopper 2 set up for the level, weighing sensor detects the sudden grow of weight of getting hopper 2, then indicates that the aggregate in the aggregate storehouse is started to be received in getting hopper 2, and controller control actuating mechanism drive gets hopper 2 and switches to the material state of getting of slope and carry out the blanking this moment to improve and get material precision and efficiency.

According to the utility model discloses an embodiment, moisture content detection device includes detection case 10, detection case 10 links to each other with being in the hopper 2 of getting the material state for receive the aggregate in the hopper 2, and be equipped with non-contact microwave moisture meter and vibrator 13 on the detection case 10, after the aggregate in the hopper 2 of getting is unloaded to detection case 10 and is accomplished, vibrate a period through vibrator 13, for example 20 seconds, the aggregate vibration with in the detection case 10 is even, be convenient for improve and detect the precision, then detect the moisture content of aggregate through non-contact microwave moisture meter. Specifically, after the vibration of the aggregate in the detection box 10 is finished, the moisture content data of a period of time is collected, an average value is taken, and the average value is regarded as the current aggregate moisture content, so that the quality of the concrete is improved.

In one embodiment, the vibrator 13 is connected to a controller, and when the vibration time of the vibrator 13 reaches a preset vibration time of the controller to make the aggregates in the detection box 10 uniform, the controller controls the vibrator 13 to stop vibrating.

In one embodiment, the vibrator 13 is a vibration motor and is disposed at the left side of the outside of the inspection box 10.

In one embodiment, the non-contact microwave moisture meter comprises a transmitting probe 11 and a receiving probe 12, the transmitting probe 11 and the receiving probe 12 are respectively and oppositely arranged on the front side and the rear side of the outside of the detection box 10, the transmitting probe 11 is used for transmitting microwaves, and the receiving probe 12 is used for receiving the microwaves and sending received data to the controller through MODBUS communication to measure the moisture content of aggregate. In this example, the controller is a SYMC controller.

The working principle of the non-contact microwave moisture meter substantially comprises the following steps: water is a polar molecule, and when microwaves with a specific frequency of 2.4GHZ penetrate through the material, 0-H bonds of water molecules in the material can absorb microwave energy with a specific frequency. The transmitting probe 11 transmits microwave energy, the receiving probe 12 receives the residual microwave energy after penetrating through the material and the detection box 10, the controller calculates the water content of the material according to the microwave energy attenuation generated when the microwave penetrates through the medium, and the material to be measured can pass through a measurement area in a stable distribution thickness to obtain higher measurement precision. Since the non-contact microwave moisture meter is a conventional device in the art, it will not be described in detail herein.

The utility model discloses a distribution thickness of accurate control aggregate through setting up the aggregate in detection case 10, and transmitting probe 11 and receiving probe 12 set up respectively in the relative both sides of detection case 10 for the aggregate thickness that detects is the width of detection case 10 promptly, is the fixed value. Therefore, the utility model discloses an above-mentioned thickness that sets up and to control the aggregate is stable to improve and detect the precision.

According to the utility model discloses an embodiment, the utility model discloses detection mechanism is still including connecing workbin 14, connects workbin 14 to set up between fetching hopper 2 and detection case 10, and the top that connects workbin 14 is equipped with pan feeding mouth 18 for receive the aggregate of fetching hopper 2 whereabouts. Specifically, the detection box 10 is arranged below the material receiving box 14, the bottom of the material receiving box 14 is provided with a material discharging valve 15, and the top of the detection box 10 is provided with a material receiving port 16 matched with the material discharging valve 15 and used for receiving aggregate falling through the material discharging valve 15. It can be understood that the utility model discloses can set up and connect workbin 14 or not set up and connect workbin 14, when setting up and connect workbin 14, weighing sensor can set up on connecing workbin 14, and the concrete position that connects workbin 14 can refer to detection case 10 and get the relative position of hopper 2 and carry out corresponding setting.

In one embodiment, the discharge valve 15 comprises a door and a cylinder, one side of the door is hinged with the box body of the receiving box 14, the other side of the door is connected with the driving end of the cylinder, and when the cylinder drives the door to open, the aggregates fall into the detection box 10 below.

The utility model also provides a system for detecting the moisture content of aggregate, including the first feeding device 1, the second feeding device 17 and the aggregate moisture content detection mechanism of the above embodiment, the material taking hopper 2 is arranged at the feeding end of the first feeding device 1, the material taking hopper 2 can be in flush butt joint with the feeding end of the first feeding device 1, and also can be positioned below the feeding end of the first feeding device 1 for receiving aggregate in the aggregate bin conveyed by the first feeding device 1; the second feeding device 17 is arranged below the moisture content detection device. Specifically, the bottom of detection case 10 also is equipped with discharge valve 15, and second material feeding unit 17 sets up in the below of discharge valve 15 of detection case 10, detects the back of accomplishing, and the aggregate that accords with the construction requirement can further directly be carried to the construction site through second material feeding unit 17, continues the production and uses, and resources are saved is just very convenient.

In one embodiment, a plurality of different aggregate bins are arranged above the first feeding device 1 side by side, and because the distance from each aggregate bin to the feeding end of the first feeding device 1 is different and the speed of the first feeding device 1 is constant, the conveying time required by the aggregate of each aggregate bin from the beginning of discharging to the arrival of the aggregate at the taking device can be calculated, therefore, the conveying time corresponds to the aggregate type, namely, the currently conveyed aggregate type can be judged through the conveying time, and the operator can be reminded to set different detection amounts. And when the conveying time is reached, it indicates that the aggregates have reached the feeding end of the first feeding device 1, and at this time, the material taking hopper 2 can be controlled to become a material taking state.

In one embodiment, the first feeding device 1 is a flat belt conveyor, and the second feeding device 17 is an inclined belt conveyor, the utility model discloses first feeding device 1, extracting device, moisture content detection device and second feeding device 17 are the structure of distributing from top to bottom, can reduce area.

The utility model also provides a mixing plant, including above-mentioned embodiment aggregate moisture content detecting system.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (10)

1. The utility model provides a aggregate moisture content detection mechanism which characterized in that includes:

the material taking device comprises a material taking hopper and a driving mechanism, wherein the driving mechanism is connected with the material taking hopper so as to drive the material taking hopper to be switched between an initial state and a material taking state, the material taking hopper is horizontally or vertically arranged in the initial state, and the material taking hopper is obliquely arranged in the material taking state;

and the moisture content detection device is connected with the material taking hopper in a material taking state.

2. The mechanism for detecting the moisture content of the aggregates according to claim 1, wherein the driving mechanism comprises a first driving device and a first connecting rod, a first end of the first connecting rod is connected with the first driving device, a second end of the first connecting rod is hinged with a material receiving end of the material taking hopper, and the material taking hopper is rotatably arranged.

3. The mechanism for detecting the moisture content of the aggregates according to claim 1, wherein the driving mechanism comprises a main frame, a second connecting rod and a second driving device are arranged on the main frame side by side, the material taking hopper is arranged below the main frame, the material receiving end of the material taking hopper is hinged with the second connecting rod, and the material dropping end of the material taking hopper is hinged with the second driving device.

4. The aggregate moisture content detection mechanism according to claim 3, wherein the second driving device is an air cylinder, a hydraulic cylinder or an electric push rod.

5. The mechanism for detecting moisture content in aggregate according to any one of claims 1 to 4, wherein a weight sensor is provided on the material-taking hopper, and when the initial state of the material-taking hopper is a horizontal setting, the switching state of the material-taking hopper is controlled based on a detection signal of the weight sensor.

6. The aggregate moisture content detection mechanism according to any one of claims 1 to 4, wherein the moisture content detection device comprises a detection box, the detection box is connected with the material taking hopper in a material taking state, and a non-contact microwave moisture meter and a vibrator are arranged on the detection box.

7. The mechanism for detecting the moisture content of the aggregates according to claim 6, wherein the non-contact microwave moisture meter and the vibrator are respectively connected with a controller.

8. The mechanism for detecting the moisture content of the aggregates according to claim 6, further comprising a material receiving box, wherein the material receiving box is arranged between the material taking hopper and the detection box, a material discharging valve is arranged at the bottom of the material receiving box, and a material receiving opening matched with the material discharging valve is arranged at the top of the detection box.

9. The aggregate moisture content detection system is characterized by comprising a first feeding device, a second feeding device and the aggregate moisture content detection mechanism as claimed in any one of claims 1 to 8, wherein the material taking hopper is arranged at the feeding end of the first feeding device, and the second feeding device is arranged below the moisture content detection mechanism.

10. A mixing plant, characterized by comprising the aggregate moisture content detection system of claim 9.

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