CN117191517B - Concrete laboratory full-automatic sample preparation device and use and modification optimization method - Google Patents

Abstract

The device is provided with a fixed frame, a stirring bin is arranged in the fixed frame, a feed inlet, a nano silicon dioxide automatic feed component and a conveyor belt are arranged at the upper part in the stirring bin, a basalt fiber modifying table is arranged on the right side of the conveyor belt, and an automatic filter component, a mechanical arm, a temperature control stirring component and a fiber conveying roller are arranged on the basalt fiber modifying table; the lower part of the stirring bin is provided with a conveying hopper, the lower part of the conveying hopper is provided with an automatic leveling component and a bottom rotary table, and a slump barrel and a concrete test block mould are placed on the bottom rotary table; an automatic telescopic vibrating rod is arranged at the lower part of the basalt fiber modification table; the device can realize the efficient preparation of the nano silicon dioxide modified basalt fiber reinforced concrete in a laboratory, fully automatic and effectively eliminates errors caused by human factors in the preparation process, and can also rapidly realize slump measurement and test block manufacture of the concrete.

Description

Concrete laboratory full-automatic sample preparation device and use and modification optimization method

Technical Field

The invention relates to the technical field of building material test equipment, in particular to a full-automatic laboratory sample preparation device for concrete and a using and modifying optimization method.

Background

At present, with the continuous development of the building industry, the continuous development of new technologies, new processes and new materials promotes the high-speed development of the building industry. The novel process, technology and materials need to be practiced, demonstrated and tested to be safely and effectively applied to the building construction. Reinforced concrete is the material with the largest usage in the building, and the performance of the reinforced concrete directly affects the quality and safety of the building. Therefore, reinforced concrete of special parts and key parts needs to be tested and demonstrated before being used so as to meet the requirements of construction sites. The use of nano-silica modified basalt fiber reinforced concrete has been started in concrete production at present,

research shows that the fiber concrete has better mechanical property compared with common concrete. The nano silicon dioxide can effectively modify basalt fiber, so that the surface of the basalt fiber is rougher, and meanwhile, the toughness and the pulling resistance of the basalt fiber are obviously improved, but in laboratory experiments, fiber modification is performed in advance in preparing modified basalt fiber concrete in a laboratory, the basalt fiber is modified by manually stirring nano silicon dioxide solution, concrete sample preparation is performed after the modification is completed, the time and the labor are consumed, and human experiment errors cannot be avoided due to human participation in the whole process; moreover, the prepared test piece often cannot reach the expected strength, and the reason is that: 1) The nanometer silicon dioxide is easy to agglomerate, the stirring is uneven easily caused by manual stirring, the incomplete modification phenomenon is caused, and the modification time and the modification temperature cannot be accurately controlled; 2) The fiber is not easy to disperse, and the phenomenon of fiber aggregation easily occurs when the fiber concrete is stirred manually; 3) The manual vibration mode is adopted to manufacture the concrete test block, so that time and labor are wasted, vibration is uneven, the quality of the manufactured test block is poor, and the test effect is poor; with the increase of the required usage amount, the existing research cannot achieve rapid and orderly zero-error sample preparation and test, so that a device for fully automatically preparing modified basalt fiber reinforced concrete in a laboratory is needed to solve the problems, and the applicant designs a laboratory full-automatic sample preparation device for preparing concrete and a using and modifying optimization method according to the requirements of the device, so that the nano silicon dioxide modified basalt fiber reinforced concrete can be rapidly and efficiently prepared in the laboratory, errors caused by human factors can be fully and effectively eliminated in the preparation process, and slump measurement and test block preparation of the concrete can be rapidly realized.

In addition, the invention provides a laboratory full-automatic sample preparation device of the nano-silica modified basalt fiber reinforced concrete. However, in terms of experimental requirements, strict control and analysis of the sample preparation process and the properties of the finished product are required. Traditional analytical methods, i.e. experimental methods, are too time consuming and not accurate enough. Therefore, a more intelligent, rapid and rapid evaluation and optimization method for performance indexes of the nano-silica modified basalt fiber reinforced concrete is urgently needed at present.

Disclosure of Invention

In order to solve the technical problems, the invention provides a full-automatic laboratory sample preparation device for concrete and a using and modifying optimizing method, wherein a stirring bin is arranged in a fixed frame by arranging the fixed frame, a feed inlet, an automatic nano silicon dioxide feed assembly and a conveyor belt are arranged at the upper part in the stirring bin, a basalt fiber modifying table is arranged at the right side of the conveyor belt, and the basalt fiber modifying table is provided with an automatic filter assembly, a mechanical arm, a temperature control stirring assembly and a fiber conveying roller; a conveying hopper is arranged at the lower part of the stirring bin, an automatic leveling component and a bottom rotary table are arranged at the lower part of the conveying hopper, and a slump barrel and a concrete test block mould are placed on the bottom rotary table; an automatic telescopic vibrating rod is arranged at the lower part of the basalt fiber modification table; the device can rapidly realize the efficient preparation of the nano-silica modified basalt fiber reinforced concrete in a laboratory, fully automatically and effectively eliminates errors caused by human factors in the preparation process, simultaneously can rapidly measure the slump of the concrete and make test blocks, and can rapidly predict and evaluate the performance index of the nano-silica modified basalt fiber reinforced concrete prepared by the device with high accuracy and low cost in the nano-silica modification optimization method of the BRNN network.

In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:

the utility model provides a full-automatic system appearance device in laboratory of concrete, includes mount, stirring storehouse, automatic leveling subassembly, bottom carousel, nanometer silica automatic feed subassembly, basalt fiber modified platform, conveyer belt, conveying hopper, fixed platform, vibrating rod motor, automatic flexible vibrating rod, vibrating motor, fixed horizontal pole, automatic raceway, feed inlet and stabilizer blade, its characterized in that: the laboratory full-automatic sample preparation device of the nano silica modified basalt fiber reinforced concrete is provided with a fixing frame, four groups of supporting legs are arranged at four corners of the bottom of the fixing frame, a fixed cross rod is arranged between the supporting legs, a stirring bin is arranged at the upper part of the left side of the fixing frame, an automatic water pipe and a feeding hole are arranged at the upper part of the left side of the stirring bin, a nano silica automatic feeding component and a conveyor belt are arranged at the upper part of the right side of the stirring bin, a basalt fiber modification table is arranged at the right side of the conveyor belt, and the basalt fiber modification table is arranged at the upper right side of the fixing frame; a fixed platform is arranged on a fixed frame at the lower part of the basalt fiber modification table, and a vibrating rod motor and an automatic telescopic vibrating rod are arranged at the lower part of the fixed platform; the stirring bin lower part sets up the conveying hopper, the conveying hopper lower part sets up automatic leveling subassembly and bottom carousel, vibrating motor is installed to bottom carousel lower part.

As a further improvement of the structure, the full-automatic sample preparation device of the laboratory of the nano silica modified basalt fiber reinforced concrete is provided with a stirring bin, the stirring bin is provided with a stirring motor fixing frame, a stirring motor, a rotating shaft, a connecting rod, a stirring rod, a baffle plate, a bottom plate, an automatic discharge port, a pressure sensor, a fixing frame, a rotating nut, a stainless steel ring and a stainless steel sheet, the outer wall of the stirring bin is a cylindrical baffle plate, the upper part of the center of the stirring bin is provided with the stirring motor fixing frame, the stirring motor fixing frame is connected with the fixing frame and is provided with the stirring motor, the center of the stirring bin is provided with the rotating shaft which is connected with the rotating shaft of the stirring motor, the lower part of the rotating shaft is provided with a cross-shaped connecting rod, the tail end of the connecting rod is provided with the stirring rod, the bottom plate is arranged at the bottom of the stirring bin, the bottom plate is provided with four groups of automatic discharge ports, the automatic discharge port is provided with the fixing frame, the stainless steel ring is arranged on the fixing frame, the stainless steel ring is arranged at the lower part of the stainless steel sheet, and the stainless steel sheet is arranged on the stainless steel ring through the rotating nut and is arranged on the stainless steel ring, and the bottom plate is provided with the pressure sensor; the diameter of the cylinder surrounded by the baffle plates is two centimeters smaller than the circular diameter of the bottom plate, and the bottom of the stirring rod is one centimeter away from the bottom plate.

As a further improvement of the structure of the invention, the full-automatic sample preparation device of the laboratory of the nano silica modified basalt fiber reinforced concrete is provided with an automatic leveling component, the structure of the automatic leveling component comprises an automatic telescopic rod, a leveling motor, a reversing shaft, a transmission rod, a sliding groove, a transmission auxiliary rod, a rotating shaft seat, a leveling scraping plate and an adjusting platform, the automatic leveling component is provided with two groups of automatic telescopic rods which are arranged on a fixed frame, the upper part of the automatic telescopic rod is provided with the adjusting platform, the left side of the adjusting platform is provided with a motor installation base, the motor installation base is provided with the leveling motor, the rotating shaft of the leveling motor is connected with the reversing shaft, the reversing shaft is connected with the transmission rod, the transmission rod is connected with the transmission auxiliary rod, the connection part of the transmission rod and the transmission auxiliary rod is arranged in the sliding groove, the leveling scraping plate is further arranged in the sliding groove, the right side of the adjusting platform is provided with the rotating shaft seat, and one end of the transmission auxiliary rod is arranged in the rotating shaft seat.

As a further improvement of the structure of the invention, the laboratory full-automatic sample preparation device of the nano silica modified basalt fiber reinforced concrete is provided with a nano silica automatic feeding component, the structure of the nano silica automatic feeding component is provided with a fixing bolt, a tension sensor, a thin steel cable, a silica cylinder bottom plate, a silica automatic discharging hole, a rubber filling block and a silica discharging hole, the nano silica automatic feeding component is provided with a silica cylinder, the center of the top of the silica cylinder is provided with the fixing bolt, the lower part of the fixing bolt is provided with the tension sensor, the lower part of the tension sensor is connected with the thin steel cable, the lower part of the silica cylinder is provided with the silica cylinder bottom plate, the thin steel cable is connected with the silica cylinder bottom plate, two groups of silica automatic discharging holes are arranged on the silica cylinder bottom plate, the contact part of the silica cylinder bottom plate and the silica cylinder inner wall is provided with the rubber filling block, and the lower part of the silica cylinder bottom plate is provided with the silica discharging hole.

As a further improvement of the structure, the laboratory full-automatic sample preparation device of the nano-silica modified basalt fiber reinforced concrete is provided with a basalt fiber modification table, the basalt fiber modification table is structurally provided with an automatic filter assembly, a mechanical arm, a temperature control stirring assembly and a fiber conveying roller, the left side of the basalt fiber modification table is provided with the automatic filter assembly, the right side of the basalt fiber modification table is provided with two groups of mechanical arms, and the mechanical arms are respectively provided with the temperature control stirring assembly and the fiber conveying roller.

As a further improvement of the structure of the invention, the laboratory full-automatic sample preparation device of nano silica modified basalt fiber reinforced concrete is provided with a basalt fiber modification table, an automatic filter assembly is arranged in the basalt fiber modification table, the structure of the automatic filter assembly is provided with an automatic filter assembly motor, a fixed pulley block, a steel wire rope, a fixed plate seat, a connecting member, a 2000 mesh steel filter screen and a modification tank box, the automatic filter assembly is provided with a fixed plate seat, the left side of the fixed plate seat is provided with the automatic filter assembly motor, the fixed plate seat on the right side of the automatic filter assembly motor is provided with a movable pulley block, the movable pulley block is provided with a steel wire rope, one end of the steel wire rope is connected with a rotating shaft of the automatic filter assembly motor, the other end of the steel wire rope is connected with the connecting member, the right side of the fixed plate seat is provided with the modification tank box, the bottom of the modification tank box is provided with the 2000 mesh steel filter screen, and the 2000 mesh steel filter screen is connected with the connecting member.

As a further improvement of the structure of the invention, the laboratory full-automatic sample preparation device of the nano silica modified basalt fiber reinforced concrete is provided with a basalt fiber modification table, a mechanical arm is arranged in the basalt fiber modification table, the mechanical arm structure is provided with a steel pad table, a power supply device, a main control box, a mechanical arm rotating shaft, a mechanical arm rod, a stirring rotator and a coupler, the mechanical arm is provided with the steel pad table, the power supply device and the main control box are arranged on the steel pad table, three groups of mechanical arm rotating shafts are arranged on the upper part of the main control box, a mechanical arm rod is arranged between the mechanical arm rotating shafts, the top of the mechanical arm is provided with the stirring rotator, and the coupler is arranged on the stirring rotator.

As a further improvement of the structure, the laboratory full-automatic sample preparation device of the nano silica modified basalt fiber reinforced concrete is provided with a basalt fiber modification table, a temperature control stirring assembly is arranged in the basalt fiber modification table, the temperature control stirring assembly is structurally provided with a butt joint rotating shaft, a temperature control stirring supporting rod, a temperature control stirring rod rotating shaft, a temperature control stirring rod and a temperature control heating rod, the temperature control stirring assembly is provided with a cross-shaped temperature control stirring supporting rod, the upper part of the center of the temperature control stirring supporting rod is provided with the temperature control stirring rotating shaft and the butt joint rotating shaft, the lower part of the center of the temperature control stirring supporting rod is provided with the temperature control heating rod, the lower part of the tail end of the temperature control stirring supporting rod is provided with the temperature control stirring rod rotating shaft, and the lower part of the temperature control stirring rod rotating shaft is provided with the temperature control stirring rod.

As a further improvement of the structure of the invention, the laboratory full-automatic sample preparation device of the nano silica modified basalt fiber reinforced concrete is provided with a bottom turntable, a group of slump barrels and three groups of concrete test block molds are arranged on the bottom turntable, and limiting fixing blocks are arranged at the positions of the slump barrels and the concrete test block molds on the bottom turntable.

The invention provides a using method of a full-automatic laboratory sample preparation device of concrete, which comprises the following specific steps:

firstly, before starting, placing concrete raw materials to be tested in a stirring bin, and placing nano silicon dioxide raw materials to be tested in a nano silicon dioxide automatic feeding assembly;

step two, starting a laboratory full-automatic sample preparation device of nano silicon dioxide modified basalt fiber reinforced concrete, putting required nano silicon dioxide and basalt fiber into a basalt fiber modification table, controlling the device to automatically feed water into a modification tank, automatically putting a mechanical arm provided with a temperature control stirring assembly into the modification tank, automatically stirring the temperature control stirring assembly, processing the temperature control stirring assembly at a constant temperature, automatically operating an automatic filter assembly when the nano silicon dioxide and basalt fiber are modified to a proper time, lifting a 2000-mesh steel filter screen, and automatically putting the mechanical arm provided with a fiber conveying roller into the modification tank after the surface of the mechanical arm is dried;

Step three, the fiber conveying rollers convey the modified fibers to the caterpillar tracks, the caterpillar tracks further convey the fibers into the stirring bin, and the nano silicon dioxide automatic feeding assembly automatically inputs enough nano silicon dioxide and fully dry-mixes the nano silicon dioxide with concrete raw materials in the stirring bin;

step four, after the concrete raw materials and the modified basalt fibers in the stirring bin are fully dry-mixed, automatically feeding a sufficient amount of water into an automatic water delivery pipe, and continuously stirring in the stirring bin;

stopping stirring the stirring bin after the stirring is completed, opening an automatic discharge port at the bottom of the stirring bin, and controlling the automatic discharge port to open and close by the device through a signal transmitted by the pressure sensor;

step six, when the concrete falls into the 1/2 position, the 2/3 position and the full position of the slump barrel, the device respectively controls the bottom turntable to rotate the slump barrel to the lower part of the right automatic telescopic vibrating rod so as to fully vibrate the slump barrel, and the automatic leveling component automatically levels the slump barrel, and then the slump barrel is taken out.

Step seven, the device continuously runs to enable concrete to fall into a concrete test block mould to fill the concrete test block mould, the automatic leveling assembly automatically levels the concrete test block mould while the vibration motor vibrates, the bottom turntable rotates to continue to carry out the next concrete test block mould, and the concrete test block mould is taken out after the completion of the rotation, so that the full-automatic preparation of the nano silica modified basalt fiber reinforced concrete is realized;

And step eight, cleaning a laboratory full-automatic sample preparation device of the nano silicon dioxide modified basalt fiber reinforced concrete, and carrying out the next test.

The invention provides a modification and optimization method of a full-automatic laboratory sample preparation device of concrete, which comprises the following steps:

1) Collecting data;

firstly, carrying out subsequent time sequence association extraction by adopting BRNN;

2) Data processing;

firstly, processing parameters affecting the performance of a final sample at each stage in the preparation process, namely the characteristic value of the current time, wherein the method is standardized, and scaling the performance index value of the nano-silica modified basalt fiber reinforced concrete by adopting a maximum value scaling formula, so that the fitting difficulty in a regression task is reduced;

3) Building a BRNN network;

in addition, a residual error network is introduced for the fusion of the BRNN network architecture and the convolution network, and the forward and backward relation and the time sequence of the forward and backward relation are extracted by utilizing the bidirectional RNN network;

4) BRNN network weight distribution;

after the forward transmission and the backward transmission are finished, the single characteristic transmission result is required to be weighted and adjusted, and the single characteristic front-rear transmission characteristic combination formula is characterized by adopting a time sequence weight adjustment formula;

5) CNN network fusion;

adopting a similar Resnet network structure idea, and carrying out reservation correction by using a weight increasing formula;

6) Setting an activation function;

the method comprises the steps of regularizing by adopting a leakage ReLU activation function and Batch Normalization after output of BRNN and a convolution network layer, and adopting a 5*1 full-connection layer at a Head, namely an end prediction part of the network;

7) Training and evaluating a network model;

in the step, the network is built, in the step, the network model is required to be trained and evaluated, and when the mean square error of the network model test set and the training set is within 5%, the training of the model can be completed;

8) Setting up and applying a model;

the user needs to set the heating temperature and the stirring time of the temperature control stirring assembly of the equipment, the proportion of nano silica to basalt fiber in the basalt fiber modification table, the proportion of nano silica to concrete raw materials in the stirring bin and the proportion of modified basalt to modified concrete. And taking the parameters as the input of an algorithm model, outputting whether the prepared nano silicon dioxide modified basalt fiber reinforced concrete meets the performance index requirement. As a further improvement of the method of the present invention, the maximum value scaling formula in said step 4) is expressed as:

And adjusting the target value by adopting a time sequence weight adjusting formula, wherein the specific form is as follows:

wherein Y' is the scaled target value, Y is the original target value, Y _max Mapping the target value to be within the range of 0 and 1 by the formula for the highest value of the current attribute;

the time sequence weight adjustment formula in the step 4) is expressed as follows:

after the forward transmission and the backward transmission are finished, the single characteristic transmission result is required to be weighted and adjusted, and the single characteristic front-back transmission characteristic is combined and adopts a time sequence weight adjustment formula as follows:

1≤α≤2

0＜β≤1

wherein x' is the feature after weighting and combining before and after single feature transmission, alpha is super parameter, N is the level of current BRNN, N is the total level of BRNN, x _a The value after the original feature is transmitted forward is that beta is also the super parameter, x _b The value passed back after the original feature is completed.

As a further improvement of the method of the present invention, the weight increasing formula in the step 5) is expressed as:

adopting a similar Resnet network structure idea, and carrying out retention correction by using an increasing weight formula:

Y＝y _a +y _b

wherein Y is an output value obtained by adopting a weight increasing formula, and Y _a For the convolution layer to obtain the input value, i.e. the output value of the previous layer after the BRNN network, y _b The output value is obtained after passing through the convolution layer, and the output value passing through the convolution layer network can be ensured by using the formula, and the information of the BRNN network layer is still kept.

The invention provides a full-automatic sample preparation device for a laboratory of concrete and a use and modification optimizing method, wherein a stirring bin is arranged in the fixing frame by arranging the fixing frame, a feed inlet, an automatic nano silicon dioxide feed assembly and a conveyor belt are arranged at the upper part in the stirring bin, a basalt fiber modification table is arranged at the right side of the conveyor belt, and the basalt fiber modification table is provided with an automatic filter assembly, a mechanical arm, a temperature control stirring assembly and a fiber conveying roller; a conveying hopper is arranged at the lower part of the stirring bin, an automatic leveling component and a bottom rotary table are arranged at the lower part of the conveying hopper, and a slump barrel and a concrete test block mould are placed on the bottom rotary table; an automatic telescopic vibrating rod is arranged at the lower part of the basalt fiber modification table; the device can rapidly realize the efficient preparation of the nano-silica modified basalt fiber reinforced concrete in a laboratory, fully automatically and effectively eliminates errors caused by human factors in the preparation process, and can also rapidly realize slump measurement and test block manufacture of the concrete, and the device has the following advantages:

1. the laboratory full-automatic sample preparation device of the nano-silica modified basalt fiber reinforced concrete has the advantages that basalt fibers are automatically stirred mechanically, so that the uneven characteristic of manual stirring is avoided, the inaccuracy of manual temperature control is avoided by utilizing an automatic temperature control technology, the basalt fibers are always modified at the most suitable temperature, and the efficient and high-quality concrete processing is realized;

2. The laboratory full-automatic sample preparation device of the nano silica modified basalt fiber reinforced concrete adopts the idea that fibers are conveyed into a stirring bin and are dry-mixed with nano silica, cement and aggregate in advance, so that the stirring is more uniform, the fiber aggregation is avoided, and the actual production and manufacturing process of the concrete is reduced to the maximum extent; the machine automatically realizes the manufacture of concrete test blocks, and the vibration is uniform, so that a series of complicated sample preparation processes are omitted, the full-automatic process from fiber modification to sample preparation by using modified fibers is realized, the workload in the early stage of the test is shortened, and real effective data are obtained;

3. the BRNN network-based nano silicon dioxide modification optimization method can be used for predicting and evaluating the performance index of the nano silicon dioxide modified basalt fiber reinforced concrete prepared in the scheme set by the device with high accuracy and high speed, and the production cost is reduced;

4. the BRNN network-based nano silicon dioxide modification optimization method adopts the BRNN network to predict the performance value of the device preparation sample, can characterize complex forward and backward information, and captures the dependence among various features in the device, so that the mapping relation between the features and the performance index is more accurately established;

5. The BRNN-based nano silicon dioxide modification optimization method adopts a convolution layer to deepen the network model, and expands the fitting expression capacity of the network.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a part of a stirring bin according to the invention;

FIG. 3 is a schematic diagram of a part of the stirring bin according to the second embodiment of the invention;

FIG. 4 is a schematic diagram III of a partial structure of a stirring bin according to the invention;

FIG. 5 is a schematic view of the self-leveling assembly of the present invention;

FIG. 6 is a schematic view of a partial structure of an automatic silica feeding assembly according to the present invention;

FIG. 7 is a schematic view of an automatic screen assembly according to the present invention;

FIG. 8 is a schematic view of a mechanical arm according to the present invention;

FIG. 9 is a schematic view of a temperature-controlled stirring assembly according to the present invention;

FIG. 10 is a schematic view of the bottom turntable structure of the present invention;

FIG. 11 is a flow chart of an optimization method of the present invention;

FIG. 12 is a schematic diagram of an optimization method model of the present invention;

marked in the figure as: 1. a fixing frame; 2. a stirring bin; 201. a rotating shaft; 202. a connecting rod; 203. a stirring rod; 204. a baffle; 205. a bottom plate; 206. an automatic discharging port; 2061. a fixed frame; 2062. rotating the nut; 2063. a stainless steel ring; 2064. stainless steel sheet; 207. a pressure sensor; 3. a stirring motor fixing frame; 4. an automatic leveling assembly; 401. leveling motor; 402. a reversing shaft; 403. a transmission rod; 404. a sliding groove; 405. a transmission auxiliary rod; 406. a rotating shaft seat; 407. leveling scraping plates; 408. adjusting a platform; 5. a bottom turntable; 6. an automatic nano silicon dioxide feeding assembly; 601. a fixing bolt; 602. a tension sensor; 603. a thin steel cable; 604. a silica cartridge; 605. a silica cartridge floor; 606. an automatic silicon dioxide discharging port; 607. rubber filling blocks; 608. a silicon dioxide discharge port; 7. a basalt fiber modification table; 701. an automatic filtration assembly; 7011. an automatic filter assembly motor; 7012. a fixed pulley block; 7013. a wire rope; 7014. a fixed plate seat; 7015. a connecting member; 7016. 2000 mesh steel filter screen; 7017. a modification pool box; 702. a mechanical arm; 7021. a steel pad table; 7022. a power supply device; 7023. a main control box; 7024. a mechanical arm rotating shaft; 7025. a mechanical arm lever; 7026. a stirring rotator; 7027. a coupling; 703. a temperature-controlled stirring assembly; 7031. a butt joint rotating shaft; 7032. a temperature-controlled stirring rotating shaft; 7033. a temperature control stirring support rod; 7034. a temperature control stirring rod rotating shaft; 7035. a temperature control stirring rod; 7036. a temperature control heating rod; 704. a fiber transfer roller; 8. a conveyor belt; 9. a feed hopper; 10. a fixed platform; 11. a vibrating rod motor; 12. an automatic telescopic vibrating rod; 13. a vibration motor; 14. fixing the cross bar; 15. an automatic telescopic rod; 16. automatic water delivery pipe; 17. a feed inlet; 18. a stirring motor; 19. and a foot.

Detailed Description

The invention is described in further detail below with reference to the attached drawings and detailed description:

as shown in fig. 1: the laboratory full-automatic sample preparation device for concrete and a using and modifying optimizing method comprise a fixing frame 1, a stirring bin 2, an automatic leveling component 4, a bottom turntable 5, a nano silicon dioxide automatic feeding component 6, a basalt fiber modifying table 7, a conveyor belt 8, a hopper 9, a fixed platform 10, a vibrating rod motor 11, an automatic telescopic vibrating rod 12, a vibrating motor 13, a fixed cross rod 14, an automatic water conveying pipe 16, a feeding hole 17 and supporting legs 19, wherein the laboratory full-automatic sample preparation device for nano silicon dioxide modified basalt fiber reinforced concrete is provided with the fixing frame 1, the fixing frame 1 is manufactured by welding profile steel and steel plates, the structure is manufactured according to the requirement of installation equipment, four groups of supporting legs 19 are arranged at four corners of the bottom of the fixing frame 1, a fixed cross rod 14 is arranged between the supporting legs 19, the supporting legs 19 and the fixed cross rod 14 are welded and combined into a stable structure, the upper left side of the fixed frame 1 is provided with a stirring bin 2, the stirring bin 2 is mainly used for stirring cement, concrete aggregate, fiber and the like, the upper left side of the stirring bin 2 is provided with an automatic water conveying pipe 16 and a feeding hole 17, an electromagnetic valve is arranged on the automatic water conveying pipe 16 and can automatically control water to enter the stirring bin 2, the feeding hole 17 is used for adding channels of cement, concrete aggregate, additives and the like, a dust cover is arranged on the feeding hole 17, cement mortar is prevented from splashing during stirring, the upper right side of the stirring bin 2 is provided with a nano silicon dioxide automatic feeding component 6 and a conveyor belt 8, the nano silicon dioxide automatic feeding component 6 is used for providing needed nano silicon dioxide raw materials for the stirring bin 2, the right side of the conveyor belt 8 is provided with a basalt fiber modification table 7, the raw materials modified by the basalt fiber modification table 7 are conveyed into the stirring bin 2 by the conveyor belt 8, the basalt fiber modification table 7 is arranged above the right side of the fixing frame 1; a fixed platform 10 is arranged on a fixed frame 1 at the lower part of the basalt fiber modifying table 7, the fixed platform 10 is arranged for installing equipment and supporting the basalt fiber modifying table 7, a vibrating rod motor 11 and an automatic telescopic vibrating rod 12 are arranged at the lower part of the fixed platform 10, and the vibrating rod motor 11 provides kinetic energy for the vibrating rod 12; the lower part of the stirring bin 2 is provided with a conveying hopper 9, the conveying hopper 9 is in a conical structure, the effect of the conveying hopper 9 is that the concrete in the stirring bin 2 is conveniently placed into a container at the lower part after being collected, the lower part of the conveying hopper 9 is provided with an automatic leveling component 4 and a bottom rotary table 5, the lower part of the bottom rotary table 5 is provided with a vibrating motor 13, the bottom rotary table 5 is provided with a group of slump barrels 501 and three groups of concrete test block molds 502, the concrete in the conveying hopper 9 can enter the slump barrels 501 and the concrete test block molds 502, the vibrating motor 13 provides kinetic energy and vibration force for the bottom rotary table 5, and the automatic leveling component 4 performs leveling treatment on the concrete at the upper parts of the slump barrels 501 and the concrete test block molds 502.

As shown in fig. 2-4, a stirring bin 2 is arranged in a full-automatic sample preparation device of a laboratory of nano silica modified basalt fiber reinforced concrete, the stirring bin 2 is structurally provided with a stirring motor fixing frame 3, a stirring motor 18, a rotating shaft 201, a connecting rod 202, a stirring rod 203, a baffle 204, a bottom plate 205, an automatic discharging hole 206, a pressure sensor 207, a fixed frame 2061, a rotating nut 2062, a stainless steel ring 2063 and a stainless steel sheet 2064, as shown in fig. 2, the outer wall of the stirring bin 2 is a cylinder type arranged by the baffle 204, the upper part of the center of the stirring bin 2 is provided with the stirring motor fixing frame 3, the stirring motor fixing frame 3 is connected with the fixing frame 1, the stirring motor 18 is arranged on the stirring motor fixing frame 3, the stirring motor 18 provides kinetic energy for the stirring bin 2, the rotating shaft 201 is arranged in the center of the stirring bin 2 and is connected with the rotating shaft of the stirring motor 18, the cross-shaped connecting rod 202 is arranged at the lower part of the stirring shaft 201, the tail end of the connecting rod 202 is provided with the stirring rod 203, the stirring rod 203 is four groups, and the stirring motor 205 is driven to rotate by the stirring motor 18 to realize mixing of materials in the stirring bin 2, and the bottom 205 is arranged at the bottom of the stirring bin 2; as shown in fig. 3, four groups of automatic discharging ports 206 are arranged on the bottom plate 205, the structure of the automatic discharging ports 206 is that a fixed frame 2061 is arranged, a stainless steel ring 2063 is arranged on the fixed frame 2061, a stainless steel sheet 2064 is arranged at the lower part of the stainless steel ring 2063, the stainless steel sheet 2064 is arranged on the stainless steel ring 2063 through a rotating nut 2062, and a pressure sensor 207 is arranged in the center of the bottom plate 205; the diameter of a cylinder surrounded by the baffle 204 is two centimeters smaller than the circular diameter of the bottom plate 205, the bottom of the stirring rod 203 is one centimeter away from the bottom plate 205, as shown in fig. 4, the automatic discharging hole 206 is closed when the stainless steel sheet 2064 rotates inwards, the automatic discharging hole 206 is opened when the stainless steel sheet 2064 rotates outwards, the rotation of the stainless steel sheet 2064 is realized by being driven by a miniature motor arranged at the bottom, and the pressure sensor 207 provides data for measuring the internal weight of various materials entering and exiting the stirring bin 2 and is used by a device control system.

As shown in FIG. 5, the automatic leveling component 4 of the laboratory full-automatic sample preparation device of the nano silica modified basalt fiber reinforced concrete comprises an automatic telescopic rod 15, a leveling motor 401, a reversing shaft 402, a transmission rod 403, a sliding groove 404, a transmission auxiliary rod 405, a rotating shaft seat 406, a leveling scraping plate 407 and an adjusting platform 408, wherein the automatic leveling component 4 is provided with two groups of automatic telescopic rods 15, the automatic telescopic rod 15 is arranged on a fixed frame 1, the adjusting platform 408 is arranged on the upper part of the automatic telescopic rod 15, a motor installation base is arranged on the left side of the adjusting platform 408, the leveling motor 401 is arranged on the motor installation base, the rotating shaft of the leveling motor 401 is connected with the reversing shaft 402, the transmission rod 403 is connected on the reversing shaft 402, the transmission rod 403 is connected with the transmission auxiliary rod 405, the connection part of the transmission rod 403 and the transmission auxiliary rod 405 is arranged in the sliding groove 404, the connecting part of the transmission rod 403 and the transmission auxiliary rod 405 is also provided with a leveling scraper 407, the leveling scraper 407 moves in the sliding groove 404, the right side of the adjusting platform 408 is provided with a rotating shaft seat 406, one end of the transmission auxiliary rod 405 is arranged in the rotating shaft seat 406, the reversing shaft 402 is driven by the leveling motor 401 to automatically rotate by the reversing shaft 402 when the automatic leveling component 4 works, thereby realizing the movement of the transmission auxiliary rod 405 and the leveling scraper 407 in the sliding groove 404, realizing the movement of the leveling scraper 405 on the upper parts of the slump barrel 501 and the concrete test block mould 502, realizing the scraping of the concrete on the upper parts of the slump barrel 501 and the concrete test block mould 502 by the leveling scraper 405, and when the slump barrel 501 and the concrete test block mould 502 are switched, the automatic telescopic rod 15 acts to adjust the leveling scraper 405 to the heights of the slump barrel 501 and the concrete test block mould 502, realizing automatic adjustment and matching.

As shown in fig. 6, the full-automatic laboratory sample preparation device of the nano silica modified basalt fiber reinforced concrete is provided with a nano silica automatic feeding component 6, the structure of the nano silica automatic feeding component 6 is provided with a fixing bolt 601, a tension sensor 602, a thin steel cable 603, a silica barrel 604, a silica barrel bottom plate 605, a silica automatic discharging hole 606, a rubber filling block 607 and a silica discharging hole 608, the nano silica automatic feeding component 6 is provided with a silica barrel 604, the center of the top of the silica barrel 604 is provided with the fixing bolt 601, the lower part of the fixing bolt 601 is provided with the tension sensor 602, the lower part of the tension sensor 602 is connected with the thin steel cable 603, the lower part of the silica barrel 604 is provided with the silica barrel bottom plate 605, the thin steel cable 603 is connected with the silica barrel bottom plate 605, the contact part of the silica barrel bottom plate 605 and the inner wall of the silica barrel 604 is provided with the rubber filling block 606, the lower part of the silica barrel bottom plate 605 is provided with the silica discharging hole 602, when the nano silica automatic feeding component 6 works, the nano silica is added into a stirring motor 2 according to the requirement of a device control system, the stirring amount of the stirring motor needs to be controlled by the micro-scale sensor 602, and the stirring amount is controlled by the stirring amount of the micro-type 2.

As shown in fig. 1, the full-automatic laboratory sample preparation device of the nano-silica modified basalt fiber reinforced concrete is provided with a basalt fiber modification table 7, the structure of the basalt fiber modification table 7 is provided with an automatic filter assembly 701, a mechanical arm 702, a temperature control stirring assembly 703 and a fiber conveying roller 704, the left side of the basalt fiber modification table 7 is provided with the automatic filter assembly 701, the automatic filter assembly 701 is used for filtering processed basalt fibers, the right side of the basalt fiber modification table 7 is provided with two groups of mechanical arms 702, the mechanical arms 702 are respectively provided with the temperature control stirring assembly 703 and the fiber conveying roller 704, the mechanical arms 702 provided with the temperature control stirring assembly 703 stir and heat the basalt fibers, and the mechanical arms 702 provided with the fiber conveying roller 704 finish conveying the processed basalt fibers to a conveying belt 8.

As shown in fig. 7, the automatic filter component 701 is set in the basalt fiber modification table 7 of the laboratory full-automatic sample preparation device of the nano silica modified basalt fiber reinforced concrete, the automatic filter component 701 is structurally provided with an automatic filter component motor 7011, a fixed pulley block 7012, a steel wire rope 7013, a fixed plate base 7014, a connecting component 7015, a 2000 mesh steel filter screen 7016 and a modified tank 7017, the automatic filter component 701 is provided with the fixed plate base 7014, the automatic filter component motor 7011 is installed on the left side of the fixed plate base 7014, a movable pulley block 7012 is installed on the fixed plate base 7014 on the right side of the automatic filter component motor, a steel wire rope 7013 is arranged on the movable pulley block 7012, one end of the steel wire rope 7013 is connected with a rotating shaft of the automatic filter component motor 7011, the other end of the steel wire rope 7013 is connected with the connecting component 7015, the right side of the fixed plate base 7014 is provided with the modified tank 7017, the bottom of the modified tank 7017 is provided with the 2000 mesh steel filter screen 7016, the 2000 mesh steel filter screen 7016 is connected with the connecting component 7015, and the automatic filter component 7013 is connected with the fixed plate base 7014, when the fixed plate base 7014 is provided with the movable pulley block 7012, the movable pulley block 7012 is installed on the fixed pulley block, and the wire rope 7013 is pulled up to the fixed pulley block 7013, thereby realizing the upward movement of the automatic filter component 7013.

As shown in fig. 8, the mechanical arm 702 is arranged in the basalt fiber modification table 7 of the full-automatic laboratory sample preparation device of nano silica modified basalt fiber reinforced concrete, the mechanical arm 702 is structurally provided with a steel pad table 7021, a power supply device 7022, a main control box 7023, a mechanical arm rotating shaft 7024, a mechanical arm rod 7025, a stirring rotator 7026 and a coupling 7027, the mechanical arm 702 is provided with a steel pad table 7021, a power supply device 7022 and a main control box 7023 are arranged on the steel pad table 7021, an external box body of the main control box 7023 is arranged on the steel pad table 7021 as a supporting structure, three groups of mechanical arm rotating shafts 7024 are arranged on the upper portion of the main control box 7023, a mechanical arm rod 7025 is arranged between the mechanical arm rotating shafts 7024, a stirring rotator 7026 is arranged at the top of the mechanical arm 702, the coupling 7027 is arranged on the stirring rotator 7026, and the coupling 7027 can be connected with a temperature control assembly 703 or a fiber transfer roller 703, and the temperature control assembly 703 is arranged at the top of the mechanical arm 702 and the stirring assembly or the fiber transfer roller 703 through a program and an access control signal in the main control box 7023.

As shown in fig. 9, a temperature-controlled stirring assembly 703 is arranged in a basalt fiber modification table 7 arranged in a full-automatic laboratory sample preparation device for modifying basalt fiber reinforced concrete by nano silica, a butt joint rotating shaft 7031, a temperature-controlled stirring rotating shaft 7032, a temperature-controlled stirring supporting rod 7033, a temperature-controlled stirring rod rotating shaft 7034, a temperature-controlled stirring rod 7035 and a temperature-controlled heating rod 7036 are arranged in the structure of the temperature-controlled stirring assembly 703, a cross-shaped temperature-controlled stirring supporting rod 7033 is arranged in the temperature-controlled stirring assembly 703, a temperature-controlled stirring rotating shaft 7032 and a butt joint rotating shaft 7031 are arranged at the upper part of the center of the temperature-controlled stirring supporting rod 7033, a temperature-controlled heating rod 7036 is arranged at the lower part of the center of the temperature-controlled stirring supporting rod 7033, a temperature-controlled stirring rod rotating shaft 7034 is arranged at the lower part of the tail end of the temperature-controlled stirring supporting rod 7033, and the temperature-controlled stirring rod 7035 is driven to rotate by a stirring rotator 7026 arranged on a mechanical arm 702 when the temperature-controlled stirring assembly 703 is used, the temperature-controlled heating rod 7036 is used for heating the interior, and the temperature-controlled heating rod 7036 is heated at a constant temperature of 60 ℃.

As shown in fig. 10, a bottom turntable 5 of the laboratory full-automatic sample preparation device of the nano-silica modified basalt fiber reinforced concrete is provided, a group of slump barrels 501 and three groups of concrete test block molds 502 are arranged on the bottom turntable 5, limiting fixing blocks 503 are arranged at positions, where the slump barrels 501 and the concrete test block molds 502 are placed, on the bottom turntable 5, the limiting fixing blocks are arranged according to test requirements, after the machining is completed, the slump barrels 501 and the concrete test block molds 502 are taken out, and slump of concrete is measured and test block performance is detected after the concrete is solidified.

As shown in fig. 1-10, the method for using the laboratory full-automatic sample preparation device of the nano-silica modified basalt fiber reinforced concrete comprises the following steps:

firstly, before starting, placing concrete raw materials to be tested in a stirring bin 2, and placing nano silicon dioxide raw materials to be tested in a nano silicon dioxide automatic feeding assembly 6;

step two, starting a laboratory full-automatic sample preparation device of nano silicon dioxide modified basalt fiber reinforced concrete, putting required nano silicon dioxide and basalt fiber into a basalt fiber modification table 7, controlling the device to automatically feed water into a modification tank 7017, automatically putting a mechanical arm 702 provided with a temperature control stirring assembly 703 into the modification tank 7017, automatically stirring the temperature control stirring assembly 703, processing the temperature control stirring assembly 703 at a constant temperature of 60 ℃, when the nano silicon dioxide and basalt fiber are modified to a proper time, operating an automatic filtering assembly 701, lifting a 2000-mesh steel filter screen 7016, and automatically putting the mechanical arm 702 provided with a fiber conveying roller 704 into the modification tank 7017 after the surface of the mechanical arm 702 is dried;

Step three, the fiber conveying roller 704 conveys the modified fiber to the caterpillar band 8, the caterpillar band 8 further conveys the fiber into the stirring bin 2, and the nano silicon dioxide automatic feeding component 6 automatically inputs enough nano silicon dioxide and fully dry-mixes the nano silicon dioxide with the concrete raw material in the stirring bin 2;

step four, after the concrete raw material in the stirring bin 2 and the modified basalt fiber are fully dry-mixed, automatically feeding a sufficient amount of water into an automatic water conveying pipe 16, and continuously stirring the stirring bin 2;

step five, stopping stirring of the stirring bin 2 after stirring is completed, opening an automatic discharging hole 206 at the bottom of the stirring bin 2, and controlling the automatic discharging hole 206 to open and close by transmitting a signal through a pressure sensor 207;

step six, when the concrete falls into the position 5011/3, the position 2/3 and the full position of the slump barrel, the device respectively controls the bottom turntable 5 to rotate the slump barrel 501 to the lower part of the right automatic telescopic vibrating rod 12, so that the slump barrel is fully vibrated, and the automatic leveling component 4 automatically levels the slump barrel, and then the slump barrel 501 is taken out.

Step seven, the device continues to run to enable concrete to fall into the concrete test block mold 502 to fill the concrete test block mold, the automatic leveling assembly 4 automatically levels while the vibration motor 13 vibrates, the bottom turntable 5 rotates to continue to carry out the next concrete test block mold 502, and the concrete test block mold 502 is taken out after the completion, so that the full-automatic preparation of the nano silica modified basalt fiber reinforced concrete is realized;

And step eight, cleaning a laboratory full-automatic sample preparation device of the nano silicon dioxide modified basalt fiber reinforced concrete, and carrying out the next test.

FIG. 11 is a flowchart of a BRNN network-based nano-silica modification optimization method provided by the application.

S1: and (5) data collection.

In the application, the adopted device is a laboratory full-automatic sample preparation device of nano silicon dioxide modified basalt fiber reinforced concrete, and the preparation process has strong time sequence and front-back relation, so that BRNN is firstly adopted for carrying out the subsequent time sequence correlation extraction in the application. In step S1, parameters affecting the properties of the final sample at various stages in the preparation process are collected, including: the heating temperature of the temperature control stirring assembly, the stirring time of the temperature control stirring assembly, the proportion of nano silica to basalt fiber in the basalt fiber modification table, the proportion of nano silica to concrete raw materials in the stirring bin and the proportion of modified basalt to modified concrete. In addition, performance indexes of the nano-silica modified basalt fiber reinforced concrete, including compressive strength, tensile strength, toughness, durability, compactness and the like, need to be collected and characterized.

S2: and (5) data processing.

In the data processing, firstly, parameters affecting the performance of the final sample at each stage in the preparation process, namely the characteristic value of the current time, are processed, and the method is standardized. The feature values are converted into standard normal distribution with the mean value being 0 and the standard deviation being 1 by subtracting the mean value and dividing the mean value by the standard deviation, so that dimension differences among all feature values are eliminated.

In addition, in the present application, in order to reduce the training difficulty of the model, the performance index values of the nano-silica modified basalt fiber reinforced concrete are scaled, so that the fitting difficulty in the regression task is reduced, and the index values with a large range such as strength are avoided.

In the application, the maximum value scaling formula is directly adopted to adjust the target value, and the specific form is as follows:

wherein Y' is the scaled target value, Y is the original target value, Y _max Is the highest value of the current attribute. By this formula, the target value can be mapped within the range of 0 and 1. For example, the highest compressive strength of the nano-silica modified basalt fiber reinforced concrete is generally about 100Mpa, and when a sample prepared by experiments is 80Mpa, the final target value is scaled to 0.8, so that the regression fitting difficulty is reduced.

Step S3: and (5) building a BRNN network.

FIG. 12 is a schematic diagram of an algorithm model of a BRNN-based nano-silica modification and optimization method provided by the application;

the application provides a new network architecture which is the fusion of BRNN network architecture and convolutional networkIn addition, a residual network is introduced. Firstly, extracting time sequence relation among characteristics by adopting a bidirectional RNN network, such as heating temperature of a temperature control stirring assembly, stirring time of the temperature control stirring assembly, proportion of nano-silica to basalt fiber in a basalt fiber modification table, proportion of nano-silica to concrete raw materials in a stirring bin, and setting the proportion of modified basalt to modified concrete as characteristic x respectively ₁₁ ，x ₂₁ ，x ₃₁ ，x ₄₁ ，x ₅₁ Forward and backward relationship extraction using a bi-directional RNN network, where x ₁₂₁ To x ₅₂₁ X is the forward process ₅₂₂ To x ₁₂₂ Then the backward procedure is followed.

Step S4: BRNN network weight allocation

After the forward transmission and the backward transmission are finished, the single characteristic transmission result is required to be weighted and adjusted, and the single characteristic front-back transmission characteristic is combined and adopts a time sequence weight adjustment formula as follows:

1≤α≤2

0＜β≤1

wherein x' is the feature after weighting and combining before and after single feature transmission, alpha is super parameter, N is the level of current BRNN, N is the total level of BRNN, x _a The value after the original feature is transmitted forward is that beta is also the super parameter, x _b The value passed back after the original feature is completed.

The forward sequence is important in the forward BRNN network to obtain a larger weight information value, and the weight value of the backward sequence is lower, so that the forward sequence corresponds to the modification and optimization method of the nano silicon dioxide, in the influence of process design, the forward step has larger influence on the subsequent step, the subsequent step has influence on the front, but the influence value is lower. In addition, after the front-back relation is acquired through the BRNN network in a certain step, the full blending is completed, and the follow-up output can be carried out in a mode that the forward weight and the backward weight are relatively equal.

Step S5: CNN network convergence.

In addition, in the network structure, the network depth of the BRNN is difficult to increase, and the gradient disappears or explodes due to excessive increase. Therefore, in order to increase the depth of the network and increase the feature extraction capability, in the network design, a convolutional network layer is added after each BRNN layer, wherein in order to keep the feature dimension uniform, the convolution kernel size is 3*1, the step size is 1, and the filling is 1.

In addition, in order to avoid that the front-to-back time sequence of the characteristic parameters in the BRNN network is still reserved after passing through the convolution layer, the application adopts a Resnet-like network structure idea, and the reservation correction is carried out by using an increasing weight formula:

Y＝y _a +y _b

wherein Y is an output value obtained by adopting a weight increasing formula, and Y _a For the convolution layer to obtain the input value, i.e. the output value of the previous layer after the BRNN network, y _b The output value is obtained after the convolution layer. The output value of the convolutional layer network can be ensured by using the formula, and the information of the BRNN network layer is still maintained. For example, in the first layer, the BRNN-1 layer outputs x ₁₃ After convolution, the output value is m, and the value input into the next BRNN-2 is x ₁₃ And +m, the situation that the time sequence disappears after passing through the convolution layer is avoided, the network depth is increased, and then the network fitting capacity is increased.

Step S6, activating function setting

In order to increase the non-linear capability of the network, the output of the BRNN and the convolution network layer is regularized by adopting a leakage ReLU activation function and a Batchnormalization. In addition, a full connection layer of 5*1 is used in the Head, i.e., end prediction part of the current network.

Step S7: and training and evaluating the network model.

In the above step, the construction of the network is completed, in the step, training and evaluation are required to be performed on the network model, and when the mean square error between the network model test set and the training set is within 5%, the training of the model can be completed.

Step S8: and (5) building and applying a model.

When a user needs to set the heating temperature of the temperature control stirring assembly of the equipment and the stirring time of the temperature control stirring assembly, the proportion of nano silica to basalt fiber in the basalt fiber modification table, the proportion of nano silica to concrete raw materials in the stirring bin and the proportion between modified basalt and modified concrete are established, and whether the blended nano silica modified basalt fiber reinforced concrete meets the performance index requirement can be output by taking the parameters of the proportion as the input of the algorithm model.

The above description is only of the preferred embodiment of the present invention, and is not intended to limit the present invention in any other way, but is intended to cover any modifications or equivalent variations according to the technical spirit of the present invention, which fall within the scope of the present invention as defined by the appended claims.

Claims (4)

1. Full-automatic sample preparation device in laboratory of concrete, including mount (1), stirring storehouse (2), automatic leveling subassembly (4), bottom carousel (5), nanometer silica automatic feed subassembly (6), basalt fiber modification platform (7), conveyer belt (8), conveying hopper (9), fixed platform (10), vibrating rod motor (11), automatic flexible vibrating rod (12), vibrating motor (13), fixed horizontal pole (14), automatic raceway (16), feed inlet (17) and stabilizer blade (19), its characterized in that: the laboratory full-automatic sample preparation device of the nano silica modified basalt fiber reinforced concrete is characterized in that a fixing frame (1) is arranged, four groups of supporting legs (19) are arranged at four corners of the bottom of the fixing frame (1), a fixed cross rod (14) is arranged between the supporting legs (19), a stirring bin (2) is arranged at the upper left part of the fixing frame (1), an automatic water conveying pipe (16) and a feeding hole (17) are arranged at the upper left part of the stirring bin (2), a nano silica automatic feeding component (6) and a conveying belt (8) are arranged at the upper right part of the stirring bin (2), a basalt fiber modification table (7) is arranged at the right side of the conveying belt (8), and the basalt fiber modification table (7) is arranged at the upper right part of the fixing frame (1); a fixed platform (10) is arranged on a fixed frame (1) at the lower part of the basalt fiber modification table (7), and a vibrating rod motor (11) and an automatic telescopic vibrating rod (12) are arranged at the lower part of the fixed platform (10); the lower part of the stirring bin (2) is provided with a conveying hopper (9), the lower part of the conveying hopper (9) is provided with an automatic leveling component (4) and a bottom rotary table (5), and the lower part of the bottom rotary table (5) is provided with a vibrating motor (13);

Stirring storehouse (2) structure is provided with stirring motor mount (3), stirring motor (18), pivot (201), connecting rod (202), puddler (203), baffle (204), bottom plate (205), automatic discharge gate (206), pressure sensor (207), fixed frame (2061), rotation nut (2062), stainless steel ring (2063) and stainless steel sheet (2064), stirring storehouse (2) outer wall is the cylinder type that baffle (204) set up, stirring storehouse (2) central upper portion sets up stirring motor mount (3), stirring motor mount (3) are connected with mount (1) and install, install stirring motor (18) on stirring motor mount (3), stirring storehouse (2) center sets up pivot (201) and stirring motor (18) the pivot is connected, pivot (201) lower part sets up cross connecting rod (202), connecting rod (202) end-mounting puddler (203), stirring storehouse (2) bottom sets up bottom plate (205), set up four automatic discharge gates (206) on bottom plate (205) are set up, stirring storehouse (2) are fixed frame (2061), a stainless steel sheet (2064) is arranged at the lower part of the stainless steel ring (2063), the stainless steel sheet (2064) is arranged on the stainless steel ring (2063) through a rotating nut (2062), and a pressure sensor (207) is arranged at the center of the bottom plate (205); the diameter of a cylinder surrounded by the baffle plate (204) is two centimeters smaller than the circular diameter of the bottom plate (205), and the bottom of the stirring rod (203) is one centimeter away from the bottom plate (205);

The basalt fiber modification table (7) is structurally provided with an automatic filtering component (701), a mechanical arm (702), a temperature control stirring component (703) and a fiber conveying roller (704);

an automatic filter assembly (701) is arranged on the left side of the basalt fiber modification table (7), two groups of mechanical arms (702) are arranged on the right side of the basalt fiber modification table (7), a temperature control stirring assembly (703) and a fiber conveying roller (704) are respectively arranged on the mechanical arms (702), the automatic filter assembly (701) is structurally provided with an automatic filter assembly motor (7011), a fixed pulley block (7012), a steel wire rope (7013), a fixed plate seat (7014), a connecting member (7015), a 2000-mesh steel filter screen (7016) and a modified tank (7017), the automatic filter assembly (701) is provided with the fixed plate seat (7014), an automatic filter assembly motor (7011) is arranged on the left side of the fixed plate seat (7014), a fixed pulley block (7012) is arranged on the fixed plate seat (7014) on the right side of the automatic filter assembly motor, a steel wire rope (7013) is arranged on the fixed pulley block (7012), one end of the steel wire rope (7013) is connected with a rotating shaft of the automatic filter assembly motor (7011), the other end of the steel wire rope (7013) is connected with the connecting member (7015), the other end of the steel wire rope (7016) is connected with the connecting member (7016), and the right side of the steel wire rope (7016) is connected with the modified tank (7016), and the modified tank (2000) is connected with the right side of the steel filter screen (2000).

Be provided with arm (702) in basalt fiber modified platform (7), arm (702) structure is provided with steel pad platform (7021), power supply unit (7022), master control case (7023), arm pivot (7024), arm lever (7025), stirring circulator (7026) and shaft coupling (7027), arm (702) set up steel pad platform (7021), install power supply unit (7022) and master control case (7023) on steel pad platform (7021), master control case (7023) upper portion sets up three groups arm pivot (7024), be provided with arm lever (7025) between arm pivot (7024), arm (702) top sets up stirring circulator (7026), set up shaft coupling (7027) on stirring circulator (7026);

the basalt fiber modified table is characterized in that a temperature control stirring assembly (703) is arranged in the basalt fiber modified table (7), the temperature control stirring assembly (703) is structurally provided with a butt joint rotating shaft (7031), a temperature control stirring rotating shaft (7032), a temperature control stirring supporting rod (7033), a temperature control stirring rod rotating shaft (7034), a temperature control stirring rod (7035) and a temperature control heating rod (7036), the temperature control stirring assembly (703) is provided with a cross-shaped temperature control stirring supporting rod (7033), the upper part of the center of the temperature control stirring supporting rod (7033) is provided with the temperature control stirring rotating shaft (7032) and the butt joint rotating shaft (7031), the lower part of the center of the temperature control stirring supporting rod (7033) is provided with the temperature control heating rod (7036), and the lower part of the tail end of the temperature control stirring supporting rod (7033) is provided with the temperature control stirring rod rotating shaft (7034), and the lower part of the temperature control stirring rod rotating shaft (7035) is provided with the temperature control stirring rod (7035).

A group of slump barrels (501) and three groups of concrete test block molds (502) are arranged on the bottom turntable (5), and limiting fixed blocks (503) are arranged at the positions of the slump barrels (501) and the concrete test block molds (502) on the bottom turntable (5).

2. The laboratory fully automatic sample preparation device for concrete according to claim 1, wherein: the automatic leveling component (4) comprises an automatic telescopic rod (15), a leveling motor (401), a reversing shaft (402), a transmission rod (403), a sliding groove (404), a transmission auxiliary rod (405), a rotating shaft seat (406), leveling scraping plates (407) and an adjusting platform (408), wherein the automatic leveling component (4) is provided with two groups of automatic telescopic rods (15) which are installed on a fixing frame (1), the adjusting platform (408) is installed on the upper portion of the automatic telescopic rod (15), a motor installation base is arranged on the left side of the adjusting platform (408), the leveling motor (401) is installed on the motor installation base, the reversing shaft (402) is connected with the rotating shaft of the leveling motor (401), the transmission rod (403) is connected with the transmission auxiliary rod (405), the connecting position of the transmission rod (403) and the transmission auxiliary rod (405) is arranged in the sliding groove (404), the connecting position of the transmission rod (403) and the transmission auxiliary rod (405) is also provided with the leveling scraping plates (407), and the leveling scraping plates (407) are installed in the rotating shaft seat (406) on the right side of the rotating shaft seat (406), and one end of the transmission auxiliary rod (405) is installed in the rotating shaft seat (406).

3. The laboratory fully automatic sample preparation device for concrete according to claim 1, wherein: the automatic feeding component (6) of nanometer silica is provided with fixing bolt (601), tension sensor (602), thin steel cable (603), silica feed cylinder (604), silica feed cylinder bottom plate (605), silica automatic discharge gate (606), rubber filling block (607) and silica discharge gate (608), the automatic feeding component (6) of nanometer silica sets up silica feed cylinder (604), silica feed cylinder (604) top center sets up fixing bolt (601), tension sensor (602) are installed to fixing bolt (601) lower part, thin steel cable (603) are connected to tension sensor (602) lower part, silica feed cylinder (604) lower part sets up silica feed cylinder bottom plate (605), thin steel cable (603) are connected with silica feed cylinder bottom plate (605), set up two sets of silica automatic discharge gates (606) on silica feed cylinder bottom plate (605), silica feed cylinder bottom plate (605) and silica feed cylinder (604) inner wall contact department are provided with rubber filling block (607), silica feed cylinder bottom plate (605) lower part is provided with silica discharge gate (608).

4. A method of using a fully automated laboratory sample preparation device for concrete according to any one of claims 1 to 3, wherein: the method comprises the following specific steps:

firstly, before starting, placing concrete raw materials to be tested in a stirring bin (2), and placing nano silicon dioxide raw materials to be tested in a nano silicon dioxide automatic feeding assembly (6);

step two, starting a laboratory full-automatic sample preparation device of nano silicon dioxide modified basalt fiber reinforced concrete, putting required nano silicon dioxide and basalt fiber into a basalt fiber modification table (7), controlling automatic water feeding into a modification tank (7017) by the device, automatically putting a mechanical arm (702) provided with a temperature control stirring assembly (703) into the modification tank (7017), automatically stirring the temperature control stirring assembly (703), processing the temperature control stirring assembly (703) at a constant temperature of 60 ℃, operating an automatic filter assembly (701) when the nano silicon dioxide and basalt fiber are modified to a proper time, lifting a 2000-mesh steel filter screen (7016), and automatically putting the mechanical arm (702) provided with a fiber conveying roller (704) into the modification tank (7017) after the surface of the mechanical arm is dried;

step three, a fiber conveying roller (704) conveys the modified fibers to a conveying belt (8), the conveying belt (8) further conveys the fibers into a stirring bin (2), and a nano silicon dioxide automatic feeding component (6) automatically inputs enough nano silicon dioxide and fully dry-mixes the nano silicon dioxide with concrete raw materials in the stirring bin (2);

Step four, after the concrete raw material in the stirring bin (2) and the modified basalt fiber are fully dry-mixed, automatically feeding a sufficient amount of water into an automatic water delivery pipe (16), and continuously stirring the stirring bin (2);

stopping stirring the stirring bin (2) after the stirring is finished, opening an automatic discharging hole (206) at the bottom of the stirring bin (2), and controlling the automatic discharging hole (206) to open and close by transmitting a signal through a pressure sensor (207);

step six, when the concrete falls into the 1/3 position, the 2/3 position and the full position of the slump barrel (501), the device respectively controls the bottom turntable (5) to rotate the slump barrel (501) to the lower part of the right automatic telescopic vibrating rod (12) so as to fully vibrate the slump barrel, and the automatic leveling component (4) automatically levels the slump barrel, and then takes out the slump barrel (501);

step seven, the device continuously runs to enable concrete to fall into a concrete test block mould (502) to be filled, an automatic leveling assembly (4) automatically levels when a vibrating motor (13) vibrates, a bottom turntable (5) rotates to continue to carry out the next concrete test block mould (502), and the concrete test block mould (502) is taken out after the completion, so that full-automatic preparation of nano silicon dioxide modified basalt fiber reinforced concrete is realized;

And step eight, cleaning a laboratory full-automatic sample preparation device of the nano silicon dioxide modified basalt fiber reinforced concrete, and carrying out the next test.