Concrete preparation device

Abstract

The invention discloses a concrete trial mixing device, which relates to the technical field of concrete trial mixing, and comprises a mixer, an aggregate hopper, a cement hopper, a powder hopper and a water and liquid additive supply mechanism, and weighing equipment is arranged at the bottoms of the aggregate hopper, the cement hopper and the powder hopper; discharging ports of the aggregate hopper, the cement hopper and the powder hopper are all communicated with a feeding port of the stirring machine through the electric control opening and closing device, a discharging port of the water and liquid admixture supply mechanism is communicated with the feeding port of the stirring machine, and the stirring machine, the weighing equipment and the electric control opening and closing device are all electrically connected with the control system. When concrete is prepared, the control system is used for controlling the electric control opening and closing device to be opened or closed, all materials are controlled to enter the stirring machine, the stirring machine can conduct stirring and discharging automatically, the amount of the materials entering the stirring machine can be determined according to the weight change of the hopper, automation is achieved, and meanwhile production efficiency is improved. The feeding precision of the stirrer is improved, manpower is saved, and working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of concrete trial mixing, in particular to a concrete trial mixing device. Background Art

[0002] Concrete trial mix refers to the process of determining the best mixing ratio and mix proportion through laboratory trials based on the actual needs of engineering construction. The concrete trial mix scheme currently known to the applicant is: when conducting concrete trial mix tests, technicians calculate and weigh cement, fly ash, mineral powder and other powders, aggregates, water and liquid admixtures according to the required amounts and pour them into a mixing pot for mixing. After the mixing is completed, the mixing pot needs to be turned over manually to pour out the mixed concrete and record the test.

[0003] However, in the above trial mixing scheme, technical personnel are required to participate in the whole process, and repetitive physical labor such as calculation, weighing, pouring raw materials, stirring and unloading is constantly performed. Especially when a large number of trial mixing groups need to be performed, the equipment greatly reduces the work efficiency of the personnel and takes a long time to use, resulting in a waste of human resources. At the same time, the trial mixing data can only be recorded manually by personnel, resulting in inaccurate or untimely data recording and the risk of data loss. Even if a blender is used instead of a mixing pot to save the manpower required for stirring and unloading, a lot of physical labor is still required in the calculation, weighing and pouring of raw materials steps.

[0004] Therefore, people are in urgent need of a concrete trial mixing device with high automation, labor saving and high working efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a concrete trial mixing device to solve the problems existing in the above-mentioned prior art. The device automatically controls the various materials to enter the mixer through a control system, has a high degree of automation, can save manpower and improve work efficiency.

[0006] To achieve the above-mentioned purpose, the present invention provides the following scheme: The present invention provides a concrete trial mixing device, comprising a mixer, an aggregate hopper, a cement hopper, a powder hopper and a water and liquid admixture supply mechanism, wherein the bottom of the aggregate hopper, the cement hopper and the powder hopper are all provided with weighing devices, and the discharge ports of the aggregate hopper, the cement hopper and the powder hopper are all connected to the feed port of the mixer through an electrically controlled opening and closing device, and the discharge port of the water and liquid admixture supply mechanism is connected to the feed port of the mixer, and the mixer, the weighing device and the electrically controlled opening and closing device are all electrically connected to a control system.

[0007] Preferably, the concrete trial mixing device further comprises an elevator, and a discharge port of the elevator is connected to a feed port of the aggregate hopper.

[0008] Preferably, the concrete trial mixing device includes a plurality of the aggregate hoppers arranged side by side, the elevator is arranged on a translation mechanism, the moving direction of the translation mechanism is parallel to the arrangement direction of the plurality of aggregate hoppers, a belt conveyor is arranged below the discharge ports of the plurality of aggregate hoppers, and the end of the belt conveyor in the feeding direction is arranged corresponding to the feed port of the mixer.

[0009] Preferably, one end of the belt conveyor away from the mixer is arranged corresponding to a recycling device for recycling residual materials.

[0010] Preferably, the electrically controlled opening and closing device provided at the discharge port of the aggregate hopper is an electrically controlled valve, and the electrically controlled opening and closing devices provided at the discharge port of the cement hopper and the discharge port of the powder hopper are screw conveyors.

[0011] Preferably, the screw conveyor is a screw conveyor with a self-cleaning twin screw.

[0012] Preferably, the water and liquid additive supply mechanism includes a water pipe provided with a solenoid valve, a liquid pump and a measuring bucket, the water outlet end of the water pipe is connected to the measuring bucket, the liquid pump includes a liquid infusion pipe connected to a liquid storage device, an electrically controlled three-way reversing valve, a liquid pumping cylinder, a piston and an electric push-pull device, one liquid inlet of the electrically controlled three-way reversing valve is connected to the liquid infusion pipe, and the other liquid inlet is connected to the liquid pumping cylinder, the piston is slidably arranged in the liquid pumping cylinder, the end of the piston away from the electrically controlled three-way reversing valve is connected to the electric push-pull device, the liquid outlet of the electrically controlled three-way reversing valve is connected to the measuring bucket, and the liquid outlet of the measuring bucket is connected to the feed port of the mixer through the electrically controlled valve, a weighing device is arranged at the bottom of the measuring bucket, and the weighing device, the electrically controlled three-way reversing valve, the electrically controlled valve, the solenoid valve and the electric push-pull device are all electrically connected to a control system.

[0013] Preferably, an identity recognition module is provided in the control system.

[0014] Preferably, the concrete trial mixing device further comprises a dust collector, and a dust suction port of the dust collector is arranged corresponding to the dust generating area.

[0015] Preferably, the concrete trial mixing device further comprises a camera, and a camera head of the camera is arranged corresponding to the unloading position of the mixer.

[0016] Compared with the prior art, the present invention mainly achieves the following technical effects:

[0017] When trial mixing of concrete is required, the control system controls the opening or closing of the electric opening and closing device to control the entry of various materials into the mixer. The mixer can mix and unload materials by itself, and the setting of the weighing equipment makes it possible to determine the amount of material entering the mixer based on the weight change of the hopper, thereby achieving automation and improving the feeding accuracy of the mixer, greatly saving manpower and improving work efficiency.

[0018] Compared with the prior art, other solutions of the present invention have achieved the following technical effects:

[0019] The way in which the internal components of the water and liquid admixture supply mechanism are electrically connected to the control system further improves the degree of automation of the device. When the feed of the mixer is all controlled by the control system, the control system realizes automatic batching, feeding, mixing and unloading of the entire device. All proportion data can be automatically recorded, counted and uploaded, and the raw materials are organized and traceable.

[0020] The camera can be used to capture the state of concrete after the mixer is unloaded and save it in order, providing a stable and traceable technical reference for proportioning experiments.

[0021] The installation of dust collector can effectively protect the laboratory environment from being polluted by raised dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0023] Figure 1 It is a front view of the concrete trial mixing device in the embodiment of the present invention;

[0024] Figure 2 It is a left view of the concrete trial mixing device in the embodiment of the present invention;

[0025] Figure 3 A top view of a concrete trial mixing device in an embodiment of the present invention;

[0026] Figure 4 This is a working diagram of a concrete trial mixing device in an embodiment of the present invention;

[0027] Among them, 1. mixer; 2. aggregate hopper; 3. cement hopper; 4. powder hopper; 5. water and liquid admixture supply mechanism; 6. elevator; 7. electric control box; 8. tool box; 9. belt conveyor; 10. working platform. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The purpose of the present invention is to provide a concrete trial mixing device to solve the problems existing in the prior art. The device automatically controls the various materials to enter the mixer through a control system, has a high degree of automation, can save manpower and improve work efficiency.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Please refer to Figure 1 to Figure 4 As shown, a concrete trial mixing device is provided, including a mixer 1, an aggregate hopper 2, a cement hopper 3, a powder hopper 4 and a water and liquid admixture supply mechanism 5. The mixer 1 has a discharging function. The aggregate hopper 2, the cement hopper 3 and the powder hopper 4 are all provided with weighing devices at the bottom. The discharge ports of the aggregate hopper 2, the cement hopper 3 and the powder hopper 4 are all connected with the feed port of the mixer 1 through an electric control opening and closing device. The weight of the electric control opening and closing device is also applied to the weighing device. The discharge port of the water and liquid admixture supply mechanism 5 is connected with the feed port of the mixer 1. The mixer 1, the weighing device and the electric control opening and closing device are all electrically connected to the control system. The control system controls the opening or closing of the electric control opening and closing device to control each material to enter the mixer 1. The mixer 1 can mix and discharge by itself. Moreover, the setting of the weighing device makes it possible to determine the amount of material entering the mixer 1 according to the weight change of the hopper, thereby realizing automation and improving the feeding accuracy of the mixer 1, greatly saving manpower and improving work efficiency.

[0032] The control system includes a manual control module and a display module.

[0033] When selecting a mixer 1, you should try to choose a mixer 1 that has no dead angles, high mixing uniformity, and can mix various forms of concrete, including ordinary concrete, dry hard concrete, ultra-high performance concrete, etc., for example, choose a JDQ30 mixer.

[0034] In this embodiment, the concrete trial mixing device also includes an elevator 6, the discharge port of the elevator 6 is connected to the feed port of the aggregate hopper 2, and the small lifting hoppers arranged side by side in a whole circle in the elevator 6 are filled with lifting materials one by one when passing through the lower feed port. The materials in the hoppers are lifted to the highest point through the rotation of the chain and then discharged into the aggregate hopper 2. The setting of the elevator 6 allows the experimenter to only need to put the aggregate into the lower feed port of the elevator 6, without having to lift the aggregate and put it into the higher aggregate hopper 2, saving manpower.

[0035] Since a large amount of aggregate is required when a large number of trial mixes are required, a plurality of aggregate hoppers 2 are arranged side by side, a weighing device is arranged at the bottom of each aggregate hopper 2, and an elevator 6 is arranged on a translation mechanism. The translation mechanism can use an electric translation machine or other translation equipment. The main structure and principle of the electric translation machine are as follows: the output shaft driven by the motor is fixedly connected to the gear, the gear is meshed with the fixed rack for transmission, the motor is fixedly connected to the elevator 6, and when the motor output movement drives the gear to rotate, translation can be achieved; the moving direction of the translation mechanism is consistent with the multiple The arrangement directions of the aggregate hoppers 2 are parallel, and the lifting machine 6 is driven by the translation mechanism to fill the multiple aggregate hoppers 2 in sequence, thereby increasing the total storage capacity of aggregates; when multiple aggregate hoppers 2 are set, a belt conveyor 9 is arranged below the discharge ports of the multiple aggregate hoppers 2, and the end of the belt conveyor 9 in the feeding direction is arranged corresponding to the feed port of the mixer 1, that is, the discharge port of the aggregate hopper 2 is connected with the feed port of the mixer 1 through the belt conveyor 9, so that there is no need to directly connect the discharge ports of the multiple aggregate hoppers 2 with the feed port of the mixer 1, thereby preventing the position interference of the multiple aggregate hoppers 2.

[0036] Bars can be provided on both sides of the conveyor belt of the belt conveyor 9 to prevent aggregate from falling off from the sides.

[0037] Since the aggregates may be replaced during the trial mixing, and the aggregates in the aggregate hopper 2 need to be cleaned when not in use, the reverse rotation characteristic of the belt conveyor 9 is utilized at this time, and the end of the belt conveyor 9 away from the mixer 1 is set corresponding to the recycling equipment for recycling residual materials. The recycling equipment can be a recycling vehicle or a recycling box, etc. During recycling, the belt conveyor 9 rotates in the reverse direction, the electric opening and closing device at the discharge port of the aggregate hopper 2 is opened, and the aggregate falls on the belt conveyor 9 and is driven by the belt conveyor 9 until it falls into the recycling equipment.

[0038] A silo wall vibrator may be provided on the outer side wall of the aggregate hopper 2 to provide vibration for the aggregate hopper 2 and help discharge the material.

[0039] In this embodiment, the electrically controlled opening and closing device is an electrically controlled valve or a screw conveyor. Specifically, the electrically controlled opening and closing device arranged at the discharge port of the aggregate hopper 2 is an electrically controlled valve, and the electrically controlled opening and closing devices arranged at the discharge port of the cement hopper 3 and the discharge port of the powder hopper 4 are screw conveyors; the screw conveyor can be a screw conveyor with a self-cleaning twin screw.

[0040] In this embodiment, the water and liquid additive supply mechanism 5 includes a water delivery pipe provided with a solenoid valve, a liquid extractor and a measuring bucket. The water outlet end of the water delivery pipe is connected to the measuring bucket. The liquid extractor includes a liquid delivery pipe connected to a liquid storage device, an electrically controlled three-way reversing valve, a liquid extraction cylinder, a piston and an electric push-pull device. One liquid inlet of the electrically controlled three-way reversing valve is connected to the liquid delivery pipe, and the other liquid inlet is connected to the liquid extraction cylinder. A piston is slidably arranged in the liquid extraction cylinder, and one end of the piston away from the electrically controlled three-way reversing valve is connected to the electric push-pull device. The liquid outlet of the electrically controlled three-way reversing valve is connected to the measuring bucket, and the liquid outlet of the measuring bucket is connected to the feed port of the mixer 1 through the electrically controlled valve. A weighing device is arranged at the bottom of the measuring bucket for weighing the weight change of the measuring bucket. The weighing device, the electrically controlled three-way reversing valve, the electrically controlled valve, the solenoid valve and the electric push-pull device are all It is electrically connected to the control system; the specific working principle is: open the solenoid valve, and the water in the water pipe can enter the measuring bucket; control the electric three-way reversing valve to connect the two liquid inlets, and then use the electric push-pull device to pull the piston away from the electric three-way reversing valve to form a negative pressure and suck the liquid admixture into the liquid extraction cylinder. The extraction amount of the liquid admixture can be controlled by controlling the pulling distance. After reaching the required extraction amount, control the electric three-way reversing valve to connect the liquid inlet connected to the liquid extraction cylinder with the liquid outlet, and control the electric push-pull device to push the piston to supply the extracted quantitative liquid admixture into the measuring bucket to mix with water; the water weight and the liquid admixture weight are obtained in turn in a cumulative manner at the bottom of the measuring bucket, and the mixed liquid of water and liquid admixture is supplied to the mixer 1 by opening the electric control valve.

[0041] The way in which the internal components of the water and liquid additive supply mechanism 5 are electrically connected to the control system further improves the degree of automation of the device. When the feed of the mixer 1 is all controlled by the control system, the control system realizes automatic batching, feeding, mixing and unloading of the whole device. All proportion data can be automatically recorded, counted and uploaded, and the raw materials can be summarized in an orderly manner and traceable.

[0042] A one-way valve can also be provided on the infusion tube to prevent liquid backflow.

[0043] The equipment for containing water and liquid additives can be set at a height higher than that of the solenoid valve and the electric-controlled three-way reversing valve, so that the water and liquid additives can flow freely.

[0044] The electric push-pull device can use an electric telescopic rod; or a push-pull device coordinated by a stepper motor and a ball screw can be used, wherein the stepper motor is transmission-connected to the ball screw, the nut of the ball screw is fixedly connected to a push-pull rod, and the push-pull rod is fixedly connected to the piston.

[0045] The control system is provided with an identity recognition module, which may be fingerprint recognition, facial recognition or ID card recognition, etc., which binds the identity information of the experimenter through recognition to determine the corresponding fitting relationship of the experimenter.

[0046] The concrete trial mixing device also includes a dust collector, and the dust suction port of the dust collector is set corresponding to the dust generating area, which can effectively protect the laboratory environment from being polluted by raised dust. In this embodiment, the dust generating area includes the feed inlet of the mixer 1, above the belt conveyor 9, the feed inlet of the aggregate hopper 2, the feed inlet of the cement hopper 3, the feed inlet of the powder hopper 4 and the feed inlet of the elevator 6.

[0047] The concrete trial mixing device also includes a camera, the camera head of which is set corresponding to the unloading position of the mixer 1. The camera can capture the state of concrete after the mixer 1 is unloaded and save it in order, providing a stable and well-documented technical reference for the proportioning experiment.

[0048] A working platform 10, a walkway, an escalator, etc. can be arranged around the mixer 1, the cement hopper 3 and the powder hopper 4 to facilitate a series of operations such as installation, loading, maintenance of the mixer 1 and cleaning.

[0049] In the present embodiment, a plurality of cement hoppers 3 are provided, a weighing device is provided at the bottom of each cement hopper 3, and an electrically controlled opening and closing device is provided at the discharge port. The plurality of cement hoppers 3 are used to contain different types of cement, and the discharge ports of the plurality of cement hoppers 3 are connected with the aggregate hopper, and an electrically controlled valve is provided at the bottom discharge port of the aggregate hopper, and the discharge port of the aggregate hopper is connected with the feed port of the mixer 1. In this way, a single cement supply can be realized by opening the electrically controlled opening and closing device of one cement hopper 3, and a unified supply of multiple cements can be realized by opening the electrically controlled opening and closing devices of multiple cement hoppers 3.

[0050] In the present embodiment, two powder hoppers 4 are provided, for containing fly ash and mineral powder respectively. A plurality of powder hoppers 4 may be provided as required.

[0051] In this embodiment, the space below the belt conveyor 9 is used to arrange an electric control box 7 of the overall device and a tool box 8 for storing tools required for concrete trial mixing.

[0052] In actual use, it includes a raw material preparation stage, a batching stage, a feeding stage and a mixing stage. In the raw material preparation stage: aggregate is fed into the aggregate hopper 2 through the elevator 6, powder is fed into the powder hopper 4, cement is fed into the cement hopper 3, and liquid admixture is added to the liquid storage device for providing liquid admixture; in the batching stage: the pressure sensor in the weighing device at the bottom of the aggregate hopper 2 obtains the amount of aggregate added by weight loss measurement, the pressure sensors in the weighing devices at the bottom of the powder hopper 4 and the cement hopper 3 obtain the amount of cement and powder added by weight loss measurement, and the pressure sensor in the weighing device at the bottom of the measuring hopper obtains the amount of water and liquid admixture added by cumulative measurement; in the feeding stage: the belt conveyor 9 transports a fixed amount of aggregate into the mixer 1, the measuring hopper supplies a mixture of a fixed amount of water and a fixed amount of liquid admixture into the mixer 1, and the fixed amount of cement and the fixed amount of powder are transported to the mixer 1 by a screw conveyor.

[0053] Adaptive changes made according to actual needs are all within the protection scope of the present invention.

[0054] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0055] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A concrete trial mixing device, characterized in that: It includes a mixer, an aggregate hopper, a cement hopper, a powder hopper, and a water and liquid additive supply mechanism. The bottom of the aggregate hopper, the cement hopper, and the powder hopper are all provided with weighing equipment. The discharge ports of the aggregate hopper, the cement hopper, and the powder hopper are all connected to the feed port of the mixer through an electric control opening and closing device. The discharge port of the water and liquid additive supply mechanism is connected to the feed port of the mixer. The mixer, the weighing equipment, and the electric control opening and closing device are all electrically connected to a control system.

2. The concrete trial mixing device according to claim 1, characterized in that: The concrete trial mixing device also includes an elevator, and a discharge port of the elevator is connected to a feed port of the aggregate hopper.

3. The concrete trial mixing device according to claim 2, characterized in that: The concrete trial mixing device comprises a plurality of aggregate hoppers arranged side by side, the elevator is arranged on a translation mechanism, the moving direction of the translation mechanism is parallel to the arrangement direction of the plurality of aggregate hoppers, a belt conveyor is arranged below the discharge ports of the plurality of aggregate hoppers, and the feeding direction end of the belt conveyor is arranged corresponding to the feed port of the mixer.

4. The concrete mixing device according to claim 3, characterized in that: One end of the belt conveyor away from the mixer is arranged corresponding to a recycling device for recycling residual materials.

5. The concrete trial mixing device according to claim 2, characterized in that: The electrically controlled opening and closing device provided at the discharge port of the aggregate hopper is an electrically controlled valve, and the electrically controlled opening and closing devices provided at the discharge port of the cement hopper and the discharge port of the powder hopper are screw conveyors.

6. The concrete trial mixing device according to claim 5, characterized in that: The screw conveyor is a screw conveyor with a self-cleaning twin screw.

7. The concrete mixing device according to claim 1, characterized in that: The water and liquid additive supply mechanism includes a water delivery pipe provided with a solenoid valve, a liquid pump and a measuring bucket, the water outlet end of the water delivery pipe is connected to the measuring bucket, the liquid pump includes a liquid delivery pipe connected to a liquid storage device, an electrically controlled three-way reversing valve, a liquid pumping cylinder, a piston and an electric push-pull device, one liquid inlet of the electrically controlled three-way reversing valve is connected to the liquid delivery pipe, and the other liquid inlet is connected to the liquid pumping cylinder, the piston is slidably arranged in the liquid pumping cylinder, one end of the piston away from the electrically controlled three-way reversing valve is connected to the electric push-pull device, the liquid outlet of the electrically controlled three-way reversing valve is connected to the measuring bucket, and the liquid outlet of the measuring bucket is connected to the feed port of the mixer through the electrically controlled valve, a weighing device is arranged at the bottom of the measuring bucket, and the weighing device, the electrically controlled three-way reversing valve, the electrically controlled valve, the solenoid valve and the electric push-pull device are all electrically connected to a control system.

8. The concrete mixing device according to claim 1, characterized in that: An identity recognition module is arranged in the control system.

9. The concrete trial mixing device according to claim 1, characterized in that: The concrete trial mixing device further comprises a dust collector, and a dust suction port of the dust collector is arranged corresponding to a dust generating area.

10. The concrete trial mixing device according to claim 1, characterized in that: The concrete trial mixing device also includes a camera, and the camera head of the camera is arranged corresponding to the unloading position of the mixer.

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