CN109675800B - Material box for laboratory similarity simulation and application method thereof - Google Patents
Material box for laboratory similarity simulation and application method thereof Download PDFInfo
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- CN109675800B CN109675800B CN201910040238.XA CN201910040238A CN109675800B CN 109675800 B CN109675800 B CN 109675800B CN 201910040238 A CN201910040238 A CN 201910040238A CN 109675800 B CN109675800 B CN 109675800B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
- B07B1/34—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/02—Internal fittings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branching, Merging, And Special Transfer Between Conveyors (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
The material box for the simulation of the laboratory comprises a fixed structure box body and a disassembly structure box body, wherein the disassembly structure box body is arranged at the top of the fixed structure box body, two belt conveying devices, two screening material devices and two flat plate feeding devices which are bilaterally symmetrical are sequentially arranged in the fixed structure box body from bottom to top, and a roller moving assembly is arranged on the lower surface of the bottom of the fixed structure box body; the lateral part of fixed knot constructs the box is provided with the control cabinet, and belt conveyer and dull and stereotyped material feeding device all are connected with the control cabinet. The invention has the advantages of scientific design, reasonable structure, effective improvement of space utilization, storage and screening of similar materials and convenient movement.
Description
Technical Field
The invention relates to the technical field of similarity simulation experiments, in particular to a material box for performing similarity simulation in a laboratory and a using method thereof.
Background
The box for storing materials in the laboratory is heavy, large in size and difficult to carry. During the process of screening, the materials in the box are taken out for screening, so that a large amount of manpower and material resources are inevitably needed, and time is also consumed. Therefore, it is necessary to design a new material tank.
Disclosure of Invention
The invention aims to provide a material box for laboratory simulation, which has scientific design, reasonable structure, effectively improves the space utilization, can store and screen similar materials, and is convenient to move, and a use method thereof.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the material box for the simulation of the laboratory comprises a fixed structure box body and a disassembly structure box body, wherein the disassembly structure box body is arranged at the top of the fixed structure box body, two belt conveying devices, two screening material devices and two flat plate feeding devices which are bilaterally symmetrical are sequentially arranged in the fixed structure box body from bottom to top, and a roller moving assembly is arranged on the lower surface of the bottom of the fixed structure box body;
the fixed structure box body comprises a bottom plate, two left stand columns, two middle stand columns and two right stand columns, wherein the bottom plate is a rectangular plate which is horizontally arranged, the roller moving assembly is arranged on the lower surface of the bottom plate, the lengths of the two left stand columns, the two middle stand columns and the two right stand columns are equal, the two left stand columns and the two right stand columns are respectively and vertically arranged at four corners of the upper surface of the bottom plate, the two left stand columns are positioned on the left side of the bottom plate, the two right stand columns are positioned on the right side of the bottom plate, and the two middle stand columns are vertically fixed at the middle positions of the front side and the rear side of the upper surface of the bottom plate;
the opposite surfaces of the two left upright posts, the right side surfaces of the two left upright posts, the opposite surfaces of the two middle upright posts, the left side surfaces of the two middle upright posts, the right side surfaces of the two middle upright posts, the opposite surfaces of the two right upright posts and the middle parts of the left side surfaces of the two right upright posts are all provided with first clamping grooves along the vertical direction, a left baffle is fixedly connected between the two left upright posts, a right baffle is fixedly connected between the two right upright posts, a middle baffle is fixedly connected between the two middle upright posts, two belt conveying devices, two screening material devices and two flat plate feeding devices are symmetrically arranged right above the bottom plate from bottom to top in turn, a rear baffle is fixedly connected between the left upright post and the middle upright post which are positioned at the rear side of the upper surface of the bottom plate and between the right upright post and the middle upright post which are positioned at the rear side of the upper surface of the bottom plate, the upper parts of the left upright post and the middle upright post which are positioned at the front side of the upper surface of the bottom plate and the right upright post and the middle upright post which are positioned at the front side of the upper surface of the bottom plate are fixedly connected with a front baffle plate, two vertical side edges of the left baffle plate, two vertical side edges of the right baffle plate, two vertical side edges of the middle baffle plate, two vertical side edges of the rear baffle plate and two vertical side edges of the front baffle plate are respectively inserted into corresponding first clamping grooves, the lower parts of the left upright post and the middle upright post which are positioned at the front side of the upper surface of the bottom plate and the right upright post and the middle upright post which are positioned at the front side of the upper surface of the bottom plate are fixedly connected with a box door opening and closing mechanism, and the two box door opening and closing mechanisms respectively correspond to two sets of belt conveying devices at vertical height positions;
the left side or the right side of the fixed structure box body is provided with a control console, and the belt conveying device and the flat plate feeding device are connected with the control console.
The two sets of belt conveying devices are identical in structure, the left side belt conveying device comprises a belt, two rollers and a conveying motor, vertical supporting columns are respectively fixed on the front side and the rear side of the right side face of the left baffle and the left side face of the middle baffle, two shaft ends of the two rollers are respectively rotatably mounted on the two vertical supporting columns on the front side and the two vertical supporting columns on the rear side, the center lines of the two rollers and the center line of the conveying motor are horizontally arranged left and right, the belt is rotatably sleeved on the outer surfaces of the two rollers, the conveying motor is fixedly mounted on the front side of the left side face of the left baffle, the power shaft of the conveying motor is in transmission connection with the left shaft ends of the rollers on the front side, and the conveying motor is connected with a control console.
The two sets of material screening devices have the same structure, the left material screening device comprises two rectangular chute guide rails, a rectangular screen, a rectangular pulling plate, a C-shaped pull ring and a vibrating motor, the two rectangular chute guide rails have the same structure and are symmetrically arranged, the two rectangular chute guide rails are horizontally arranged along the front and back directions, the two rectangular chute guide rails are respectively and fixedly arranged at the middle part of the right side surface of the left baffle plate and the middle part of the left side surface of the middle baffle plate, the rectangular screen is horizontally arranged, the left side edge and the right side edge of the rectangular screen are respectively and fixedly connected with a rectangular guide block through a plurality of bolts, the lengths of the two rectangular chute guide rails and the lengths of the two rectangular guide blocks are the same as the lengths of the left side edge of the rectangular screen, the left side surface of the left rectangular guide block is uniformly provided with a plurality of left pulleys, each left pulley roll connection is in left side rectangle spout guide rail, a plurality of right pulleys are evenly installed to the right flank of right side rectangle guide block, each right pulley roll connection is in right side rectangle spout guide rail, the rectangle arm-tie is along the vertical setting of left and right directions, the length of rectangle arm-tie is the same with the length of the preceding side of rectangle screen cloth, the preceding side fixed connection of rectangle screen cloth is at the trailing flank middle part of rectangle arm-tie, C type pull ring fixed connection is at the leading flank middle part of rectangle arm-tie, the horizontal rectangle slotted hole with rectangle arm-tie size matching has been seted up at the middle part of left side front baffle, the rectangle screen cloth runs through horizontal rectangle slotted hole and pegs graft in fixed knot constructs the box, vibrating motor fixed mounting is at the lower surface rear portion of rectangle screen cloth, vibrating motor passes through circuit connection with the control cabinet.
The two sets of flat plate feeding devices have the same structure, the left flat plate feeding device comprises two opening and closing plates, the two opening and closing plates have the same structure and are arranged in a front-back symmetrical way, the front side edge of the front opening and closing plate is horizontally hinged on the rear side surface of the left front baffle through a plurality of hinges, the rear side edge of the rear opening and closing plate is horizontally hinged on the front side surface of the left rear baffle through a plurality of hinges, and a set of folding device is arranged between the lower side surfaces of the two opening and closing plates and the rear side surface of the left front baffle and the front side surface of the left rear baffle respectively; the structure of the two sets of folding devices is the same and the front and back symmetry sets up, the front side folding device includes two sets of crank slider mechanisms, the structure of two sets of crank slider mechanisms is the same and the bilateral symmetry sets up, left side crank slider mechanism includes swing arm rod and sliding block, the left side portion of left side front baffle trailing flank is fixed with U type articulated support, the rear side of U type articulated support, upside and downside all open, the left side board of U type articulated support and right side board correspond about having seted up the penetrating rotation pinhole, swing arm rod's upper end is equipped with the connecting pin hole that matches with the rotation pinhole, establish in the middle of the left side board of U type articulated support and right side board, cross-under has a axis of rotation in the left and right sides rotation pinhole and the connecting pin hole, through key fixed connection between axis of rotation and the connecting pin hole, through bearing rotation connection between axis and the left side rotation hole, the left side portion fixed mounting of left side front baffle leading flank has the rotation motor, the left side portion of left side front baffle leading flank is penetrating, the rotation shaft hole of left side front and right side front baffle leading side motor has been opened, the rotation motor corresponds about having seted up, the penetrating rotation shaft hole of front and right side front motor, the upper end of swing arm rod is equipped with the connecting pin hole of the power groove that matches in the dovetail, the left side front end of the motor is installed in the left side front end of the lower side front end of the dovetail.
The roller moving assembly comprises six groups of universal wheels with self-locking function, and the six groups of universal wheels are all arranged on the lower surface of the bottom plate.
The structure of the two box door opening and closing mechanisms is the same and symmetrically arranged, the box door opening and closing mechanism between the left upright post and the middle upright post on the front side of the upper surface of the bottom plate comprises a box door and a C-shaped pull ring, the upper side edge of the box door is rotatably arranged on the front side surface of the left front baffle through a hinge, a rectangular opening matched with the structure of the box door is formed in the lower part of the left front baffle, the box door covers the butt joint rectangular opening, the rear side surface of the box door is opposite to the front side part of the roller on the front side, and the C-shaped pull ring is fixedly connected in the middle of the front side surface of the box door.
The disassembly structure box comprises six connecting columns and seven vertical connecting plates, the six connecting columns are vertically arranged, cylindrical bolts are respectively arranged on the lower end faces of the six connecting columns, insertion blind holes matched with the cylindrical bolts are respectively formed in the upper end faces of the two left upright columns, the two right upright columns and the two middle upright columns, the six connecting columns are correspondingly inserted into the six insertion blind holes, the seven vertical connecting plates are respectively and correspondingly arranged between the two adjacent connecting columns, second clamping grooves are respectively formed in opposite side faces of the two adjacent connecting columns along the vertical direction, and two vertical side edges of the seven vertical connecting plates are respectively inserted into the corresponding second clamping grooves.
The application method of the material box for the simulation in the laboratory comprises the following steps:
(1) Firstly, using a roller moving assembly below a fixed structure box body to push the fixed structure box body to move to a storage position of a similar material for similar simulation in a laboratory, and opening the self-locking function of the universal wheel;
(2) Storing similar materials: directly placing similar materials on two opening and closing plates of a flat plate feeding device in a fixed structure box body, wherein the two opening and closing plates are in a horizontal butt joint state, and if more similar materials are required to be stored, inserting the detachable structure box body at the top of the fixed structure box body;
(3) Screening similar materials: the experiment personnel starts the rotating motors on the front baffle and the rear baffle through the control console to enable the rotating motors to rotate positively, because the power shafts of the rotating motors are in transmission connection with the rotating shafts through the conical gear sets, the rotating shafts are fixedly connected with the connecting pin holes at the upper ends of the swinging arm rods, the power shafts of the rotating motors drive the rotating shafts to rotate, the swinging arm rods are driven to swing downwards around the U-shaped hinged support, the sliding blocks swing downwards, and because the sliding blocks are matched and slide in the dovetail grooves at the lower sides of the opening and closing plates, the sliding blocks are also in sliding connection with the lower sides of the opening and closing plates when swinging downwards, so that the sliding blocks drive the two opening and closing plates to synchronously rotate downwards, the adjacent two sides of the two opening and closing plates are separated and opened to form gaps with proper size, the rotating motors stop rotating, similar materials on the two opening and closing plates slide downwards to the screen mesh below the two opening and closing plates through the gaps under the action of gravity, after a certain amount of similar materials are carried on the screen, the rotating motor is reversed, the rotating motor drives the rotating shaft to reversely rotate, the rotating shaft drives the swinging arm rod to swing upwards around the U-shaped hinged support, the sliding block swings upwards, the sliding block drives the two opening and closing plates to synchronously rotate upwards until the two opening and closing plates are horizontal and the adjacent two sides of the two opening and closing plates are in butt joint, the rotating motor stops rotating, an experimenter starts the vibrating motor on the screen through the control console, the vibrating motor drives the screen to vibrate up and down, so that the similar materials on the screen are screened through the screen, the similar materials with the particle size meeting the experimental requirements fall onto a belt below the screen, the experimenter starts the conveying motor on the left baffle and the right baffle through the control console, and the power shaft of the conveying motor drives the roller to rotate, the belt is rotated around the roller, so that similar materials screened on the belt are conveyed towards a rectangular opening on the front baffle, a C-shaped pull ring is pulled, a box door is opened, similar materials are collected for a similar simulation experiment, finally, a screen is pulled out of a fixed structure box body through pulling the C-shaped pull ring on the front side surface of the rectangular pull plate, and therefore similar materials with larger particle sizes left on the screen are poured out, and different screens are replaced and installed for screening similar materials with different particle sizes;
(4) And after the material box for the similar simulation is used in the laboratory, recycling is carried out.
The recovery operation in the step (4) is as follows: taking out each vertical connecting plate from the second clamping grooves of two adjacent connecting columns, pulling out the six connecting columns from the corresponding six inserting holes, storing the vertical connecting plates and the six connecting columns, closing the self-locking function of the universal wheel, pushing the fixed structure box to the storage position of the material box for the similar simulation in a laboratory, and opening the self-locking function of the universal wheel.
Compared with the prior art, the invention has outstanding substantive characteristics and remarkable progress, in particular, the middle of the inner part of the fixed structure box body is divided into two parts by the middle partition board, so that similar materials for similar simulation in a laboratory can be conveniently stored separately, and the detachable structure box body is spliced at the top of the fixed structure box body, thereby increasing the storage space of the fixed structure box body, saving the space of the laboratory, effectively improving the space utilization rate and reducing the cost; the device comprises a fixed structure box body, a belt conveying device, a screening material device and a flat plate feeding device, wherein the belt conveying device, the screening material device and the flat plate feeding device are sequentially arranged in the fixed structure box body from bottom to top, the two opening and closing plates of the flat plate feeding device are used for storing similar materials when being horizontally butted, the two opening and closing plates are downwards rotated to open and close to form a notch, the similar materials are downwards put on a screen of the screening material device, a vibrating motor is started to vibrate the screen to screen the similar materials, the similar materials meeting the experimental requirements of particle size are screened on a belt of the belt conveying device, a power shaft of the conveying motor drives a roller to rotate, the roller drives the belt to rotate, the screened similar materials are conveyed towards a rectangular opening at the lower part of a front baffle plate, a box door is pulled open, and the similar materials on the belt are collected for making a similar simulation experiment, so that the material box for making a similar simulation in a laboratory has the function of storing the similar materials; the bottom lower surface of the fixed structure box body is provided with the roller moving assembly, the roller moving assembly comprises six groups of universal wheels with self-locking function, the six groups of universal wheels are uniformly distributed on the lower surface of the bottom plate, and the fixed structure box body is convenient to move due to the fact that the mass of the fixed structure box body is larger than that of similar materials stored on the bearing plate, and the lower surface of the bottom of the fixed structure box body is provided with the roller moving assembly.
The material box for the laboratory to perform the similarity simulation and the use method thereof have the advantages of scientific design, reasonable structure, effective improvement of space utilization, storage and screening of similar materials and convenient movement.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural view of the detachable structural case of the present invention when the case is not fully inserted.
Fig. 3 is a partial enlarged view at a in fig. 2.
Fig. 4 is a schematic view of the internal structure of the case of the present invention.
Fig. 5 is a partial enlarged view at B in fig. 4.
FIG. 6 is a schematic view of the side attachment structure of the screen according to the present invention.
Fig. 7 is a schematic view of a belt conveyor according to the present invention.
Fig. 8 is a schematic view of a folding device according to the present invention.
Fig. 9 is a bottom view of fig. 8.
Fig. 10 is a schematic view of the structure of the U-shaped hinge bracket of the present invention.
FIG. 11 is a schematic view of a flat panel feeder according to the present invention.
In the figure: 1. a bottom plate; 2. a left upright post; 3. a middle upright post; 4. a right column; 5. a first clamping groove; 6. a left baffle; 7. a right baffle; 8. a middle partition plate; 9. a rear baffle; 10. a front baffle; 11. a console; 12. a belt; 13. a roller; 14. a conveying motor; 15. a vertical support column; 16. a rectangular chute guide rail; 17. a rectangular screen; 18. a rectangular pulling plate; c-shaped pull ring; 20. a rectangular guide block; 21. a left pulley; 22. an opening and closing plate; 23. a swing arm lever; 24. a sliding block; u-shaped hinged support; 26. a rotary pin hole; 27. a rotating shaft; 28. a rotating motor; 29. a conical gear set; 30. a dovetail groove; 31. a universal wheel; 32. a door; 33. a rectangular opening; 34. a connecting column; 35. a vertical connecting plate; 36. a cylindrical bolt; 37. inserting blind holes; 38. a second clamping groove; 39. and (5) a notch.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings.
As shown in fig. 1-11, a material box for performing similar simulation in a laboratory comprises a fixed structure box body and a disassembly structure box body, wherein the disassembly structure box body is arranged at the top of the fixed structure box body, two belt conveying devices, two screening material devices and two flat-plate feeding devices which are bilaterally symmetrical are sequentially arranged in the fixed structure box body from bottom to top, and a roller moving assembly is arranged on the lower surface of the bottom of the fixed structure box body;
the fixed structure box body comprises a bottom plate 1, two left upright posts 2, two middle upright posts 3 and two right upright posts 4, wherein the bottom plate 1 is a rectangular plate which is horizontally arranged, the roller moving assembly is arranged on the lower surface of the bottom plate 1, the lengths of the two left upright posts 2, the two middle upright posts 3 and the two right upright posts 4 are equal, the two left upright posts 2 and the two right upright posts 4 are respectively and vertically arranged at four corners of the upper surface of the bottom plate 1, the two left upright posts 2 are positioned on the left side of the bottom plate 1, the two right upright posts 4 are positioned on the right side of the bottom plate 1, and the two middle upright posts 3 are vertically fixed at the middle positions of the front side and the rear side of the upper surface of the bottom plate 1;
the opposite surfaces of the two left upright posts 2, the right side surfaces of the two left upright posts 2, the opposite surfaces of the two middle upright posts 3, the left side surfaces of the two middle upright posts 3, the right side surfaces of the two middle upright posts 3, the opposite surfaces of the two right upright posts 4 and the middle parts of the left side surfaces of the two right upright posts 4 are all provided with first clamping grooves 5 along the vertical direction, a left baffle 6 is fixedly connected between the two left upright posts 2, a right baffle 7 is fixedly connected between the two right upright posts 4, a middle baffle 8 is fixedly connected between the two middle upright posts 3, two belt conveying devices, two sets of screening material devices and two sets of flat plate feeding devices are symmetrically arranged right and left symmetrically from bottom to top right above the bottom plate 1 in sequence, a rear baffle 9 is fixedly connected between the left upright post 2 and the middle upright post 3 positioned at the rear side of the upper surface of the bottom plate 1 and between the right upright post 4 and the middle upright post 3, the upper parts of the left upright post 2 and the middle upright post 3 which are positioned at the front side of the upper surface of the bottom plate 1 and the right upright post 4 and the middle upright post 3 which are positioned at the front side of the upper surface of the bottom plate 1 are fixedly connected with a front baffle plate 10, the two vertical side edges of the left baffle plate 6, the two vertical side edges of the right baffle plate 7, the two vertical side edges of the middle baffle plate 8, the two vertical side edges of the rear baffle plate 9 and the two vertical side edges of the front baffle plate 10 are respectively inserted into corresponding first clamping grooves 5, the lower parts of the left upright post 2 and the middle upright post 3 which are positioned at the front side of the upper surface of the bottom plate 1 and the right upright post 4 and the middle upright post 3 which are positioned at the front side of the upper surface of the bottom plate 1 are fixedly connected with a box door opening and closing mechanism, and the two box door opening and closing mechanisms are respectively corresponding to two sets of belt conveying devices at the vertical height positions;
the left side portion of fixed knot constructs the box is provided with control cabinet 11, and belt conveyer and dull and stereotyped material feeding device all are connected with control cabinet 11.
The two sets of belt conveying devices are identical in structure, the left side belt conveying device comprises a belt 12, two rollers 13 and a conveying motor 14, vertical supporting columns 15 are respectively fixed on the right side face of the left baffle plate 6 and the front side and the rear side of the left side face of the middle baffle plate 8, two shaft ends of the two rollers 13 are respectively rotatably installed on the two vertical supporting columns 15 on the front side and the two vertical supporting columns 15 on the rear side, the center lines of the two rollers 13 and the center line of the conveying motor 14 are horizontally arranged left and right, the belt 12 is rotatably sleeved on the outer surfaces of the two rollers 13, the conveying motor 14 is fixedly installed on the front side of the left side face of the left baffle plate 6, a power shaft of the conveying motor 14 is in transmission connection with the left shaft end of the roller 13 on the front side, and the conveying motor 14 is connected with the control console 11.
The two sets of material screening devices have the same structure, the left material screening device comprises two rectangular chute guide rails 16, a rectangular screen 17, a rectangular pull plate 18, a C-shaped pull ring 19 and a vibrating motor, the two rectangular chute guide rails 16 have the same structure and are symmetrically arranged, the two rectangular chute guide rails 16 are horizontally arranged along the front and back directions, the two rectangular chute guide rails 16 are respectively and fixedly arranged in the middle of the right side surface of the left baffle 6 and the middle of the left side surface of the middle baffle 8, the rectangular screen 17 is horizontally arranged, the left side and the right side of the rectangular screen 17 are respectively and fixedly connected with a rectangular guide block 20 through a plurality of bolts, the lengths of the two rectangular chute guide rails 16 and the lengths of the two rectangular guide blocks 20 are the same as the lengths of the left side edges of the rectangular screen 17, a plurality of left pulleys 21 are uniformly arranged on the left side surface of the left rectangular guide block 20, each left pulley 21 is in rolling connection in left side rectangle spout guide rail 16, a plurality of right pulleys are evenly installed to the right flank of right side rectangle guide block 20, each right pulley rolling connection is in right side rectangle spout guide rail 16, rectangle arm-tie 18 is along the vertical setting of left and right directions, the length of rectangle arm-tie 18 is the same with the length of the preceding side of rectangle screen cloth 17, the preceding side fixed connection of rectangle screen cloth 17 is in the trailing flank middle part of rectangle arm-tie 18, C type pull ring 19 fixed connection is in the leading flank middle part of rectangle arm-tie 18, the horizontal rectangle slotted hole that matches with rectangle arm-tie 18 size is seted up at the middle part of left side front bezel 10, rectangle screen cloth 17 runs through horizontal rectangle slotted hole grafting in fixed knot constructs the box, vibrating motor fixed mounting is at the lower surface rear portion of rectangle screen cloth 17, vibrating motor passes through circuit connection with control cabinet 11.
The two sets of flat plate feeding devices have the same structure, the left flat plate feeding device comprises two opening and closing plates 22, the two opening and closing plates 22 have the same structure and are symmetrically arranged in the front-back direction, the front side edge of the front opening and closing plate 22 is horizontally hinged on the rear side surface of the left front baffle plate 10 through a plurality of hinges, the rear side edge of the rear opening and closing plate 22 is horizontally hinged on the front side surface of the left rear baffle plate 9 through a plurality of hinges, and a set of folding device is arranged between the lower side surfaces of the two opening and closing plates 22 and the rear side surface of the left front baffle plate 10 and the front side surface of the left rear baffle plate 9 respectively; the structure of the two sets of folding devices is the same and the front and back symmetry sets up, the front folding device includes two sets of crank slider mechanisms, the structure of the two sets of crank slider mechanisms is the same and the left and right symmetry sets up, left side crank slider mechanism includes swing arm rod 23 and sliding block 24, left side portion of left side front baffle 10 trailing flank is fixed with U type articulated support 25, the rear side of U type articulated support 25, upside and downside all open, the left side board of U type articulated support 25 and right side board correspond about having seted up left and right penetrating rotation pinhole 26, the upper end of swing arm rod 23 is equipped with the connecting pin hole that matches with rotation pinhole 26, the upper end of swing arm rod 23 is established in the left side board and right side board in the middle of U type articulated support 25, cross-connect a axis of rotation 27 in two left and right side rotation pinhole 26 and connecting pin hole, through key fixed connection between axis of rotation 27 and the connecting pin hole, the left side portion of left side front baffle 10 leading flank is fixed mounting has rotation motor 28, the central line front and back horizontal setting of rotation motor 28, left side portion of left side front side motor 10 and right side portion of left side front and back side motor 10 correspond to open front end of rotation axis 27, the front end of rotation gear set 30 passes in the dovetail groove 30 is opened at the front end of rotation axis of rotation 27 and the left side front end of the dovetail, the left side front end of the sliding block 30 is equipped with a taper gear set of rotation 27 in the front end of rotation axis of the rotation 24 in the dovetail groove 30.
The roller moving assembly comprises six groups of universal wheels 31 with self-locking function, and the six groups of universal wheels 31 are uniformly distributed on the lower surface of the bottom plate 1.
The structure of the two box door opening and closing mechanisms is the same and symmetrically arranged, the box door opening and closing mechanism between the left upright post 2 and the middle upright post 3 on the front side of the upper surface of the bottom plate 1 comprises a box door 32 and a C-shaped pull ring 19, the upper side edge of the box door 32 is rotatably arranged on the front side surface of the left front baffle 10 through a hinge, a rectangular opening 33 which is matched with the structure of the box door 32 is formed in the lower part of the left front baffle 10, the box door 32 covers the butt joint rectangular opening 33, the rear side surface of the box door 32 is opposite to the front side part of the front roller 13, and the C-shaped pull ring 19 is fixedly connected in the middle of the front side surface of the box door 32.
The disassembly and assembly structure box comprises six connecting columns 34 and seven vertical connecting plates 35, the six connecting columns 34 are vertically arranged, cylindrical bolts 36 are respectively arranged on the lower end faces of the six connecting columns 34, plug-in blind holes 37 matched with the cylindrical bolts 36 are respectively formed in the upper end faces of the two left upright posts 2, the two right upright posts 4 and the two middle upright posts 3, the six connecting columns 34 are correspondingly inserted into the six plug-in blind holes 37, seven vertical connecting plates 35 are respectively correspondingly arranged between two adjacent connecting columns 34, second clamping grooves 38 are respectively formed in opposite side faces of the two adjacent connecting columns 34 along the vertical direction, and two vertical side edges of the seven vertical connecting plates 35 are respectively plugged into the corresponding second clamping grooves 38.
The application method of the material box for the simulation in the laboratory comprises the following steps:
(1) Firstly, using a roller moving assembly below a fixed structure box body to push the fixed structure box body to move to a storage position of a similar material for similar simulation in a laboratory, and opening the self-locking function of the universal wheel 31;
(2) Storing similar materials: directly placing similar materials on two opening and closing plates 22 of a flat plate feeding device in a fixed structure box body, wherein the two opening and closing plates 22 are in a horizontal butt joint state, and if more similar materials are required to be stored, inserting the detachable structure box body at the top of the fixed structure box body;
(3) Screening similar materials: the experimenter starts the rotating motor 28 on the front baffle 10 and the rear baffle 9 through the control console 11 to enable the rotating motor 28 to rotate positively, because the power shaft of the rotating motor 28 is connected with the rotating shaft 27 through the taper gear set 29 in a transmission way, the rotating shaft 27 is fixedly connected with the connecting pin holes at the upper ends of the swing arm rods 23, the power shaft of the rotating motor 28 drives the rotating shaft 27 to rotate, the rotating shaft 27 drives the swing arm rods 23 to swing downwards around the U-shaped hinged supports 25, the sliding block 24 swings downwards, and because the sliding block 24 is matched and glidingly arranged in the dovetail grooves 30 at the lower side surfaces of the opening and closing plates 22, the sliding block 24 is glidingly connected with the lower side surfaces of the opening and closing plates 22 during the downward swinging, so that the sliding block 24 drives the two opening and closing plates 22 to synchronously rotate downwards, the adjacent two side edges of the two opening and closing plates 22 are separated and opened to form a notch 39 with proper size, the rotating motor 28 stops rotating, the similar materials on the two opening and closing plates 22 slide down to the screen mesh below the two opening and closing plates 22 through the notches 39 under the action of gravity, after a certain amount of similar materials are loaded on the screen mesh, the rotating motor 28 is reversed, the rotating motor 28 drives the rotating shaft 27 to rotate reversely, the rotating shaft 27 drives the swinging arm rod 23 to swing upwards around the U-shaped hinged support 25, the sliding block 24 swings upwards, the sliding block 24 drives the two opening and closing plates 22 to synchronously rotate upwards until the two opening and closing plates 22 are horizontal and the adjacent two side edges of the two opening and closing plates 22 are butted, the rotating motor 28 stops rotating, an experimenter starts the vibrating motor on the screen mesh through the control console 11, the vibrating motor drives the screen mesh to vibrate up and down together, so that the similar materials on the screen mesh are screened through the screen mesh, the similar materials with the particle size meeting the experimental requirements fall onto the belt 12 below the screen mesh, the experimenter starts the conveying motor 14 on the left baffle 6 and the right baffle 7 through the control console 11, the power shaft of the conveying motor 14 drives the roller 13 to rotate, so that the belt 12 rotates around the roller 13, similar materials screened on the belt 12 are conveyed towards the rectangular opening 33 on the front baffle 10, the C-shaped pull ring 19 is pulled, the box door 32 is opened, similar materials are collected for a similar simulation experiment, finally, the screen is pulled out of the fixed structure box body through pulling the C-shaped pull ring 19 on the front side surface of the rectangular pull plate 18, and therefore, similar materials with larger particle sizes left on the screen are poured out, and different screens are replaced and installed for screening similar materials with different particle sizes;
(4) And after the material box for the similar simulation is used in the laboratory, recycling is carried out.
The recovery operation in the step (4) is as follows: each vertical connecting plate 35 is taken out from the second clamping groove 38 of the two adjacent connecting columns 34, then six connecting columns 34 are pulled out from the corresponding six inserting holes, the vertical connecting plates 35 and the six connecting columns 34 are stored, the self-locking function of the universal wheel 31 is closed, the fixed structure box body is pushed to the storage position of the material box for the similar simulation in a laboratory, and the self-locking function of the universal wheel 31 is opened.
If the particle size of the similar material required by the experiment in the step (3) is 5mm, and only 6mm and 4mm screens are needed in the laboratory, the similar material is screened through the 6mm screen, then the screened similar material is screened through the 4mm screen, and finally the similar material on the 4mm screen meets the similar material with the particle size of 5mm required by the experiment.
The middle part in the fixed structure box body is divided into two parts by the middle partition plate 8, so that similar materials for similar simulation in a laboratory can be conveniently stored separately, and the detachable structure box body is inserted into the top of the fixed structure box body, so that the storage space of the fixed structure box body is increased, the space of the laboratory is saved, the space utilization rate is effectively improved, and the cost is reduced; the fixed structure box body is internally and sequentially provided with a belt conveying device, a screening material device and a flat plate feeding device from bottom to top, when two opening and closing plates 22 of the flat plate feeding device are horizontally butted, the two opening and closing plates 22 are used for storing similar materials, when the two opening and closing plates are rotated downwards to form a notch 39, the similar materials are downwards put in the similar materials, the similar materials fall onto a screen of the screening material device, a vibrating motor is started to vibrate the screen to screen the similar materials, the similar materials with the particle size meeting the experimental requirements are screened onto a belt 12 of the belt conveying device, a power shaft of a conveying motor 14 drives a roller 13 to rotate, the roller 13 drives the belt 12 to rotate, the screened similar materials are conveyed towards a rectangular opening 33 at the lower part of a front baffle 10, a box door 32 is pulled open, and the similar materials on the belt 12 are collected for making a similar simulation experiment, so that the material box for making a similar simulation in a laboratory has the function of storing the similar materials and the function of screening the similar materials; the bottom lower surface of the fixed structure box body is provided with the roller moving assembly, the roller moving assembly comprises six groups of universal wheels 31 with self-locking function, the six groups of universal wheels 31 are uniformly distributed on the lower surface of the bottom plate, and the fixed structure box body is convenient to move due to the fact that the mass of the fixed structure box body is greater than that of similar materials stored on the bearing plate and the roller moving assembly is arranged on the lower surface of the bottom of the fixed structure box body, labor is saved, manual labor of laboratory workers is reduced, and each group of universal wheels 31 are provided with the self-locking function, so that the universal wheels 31 are conveniently locked, the roller moving assembly is prevented from shaking, safety accidents occur, and the fixed structure box body does not need to be moved by using hoisting equipment.
The above embodiments are merely for illustrating the technical aspects of the present invention, and it should be understood by those skilled in the art that the present invention is described in detail with reference to the above embodiments; modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, which is intended to be encompassed by the claims.
Claims (2)
1. The application method of the material box for the simulation in the laboratory is characterized by comprising the following steps of: the material box for the laboratory to perform the similar simulation comprises a fixed structure box body and a disassembly structure box body, wherein the disassembly structure box body is arranged at the top of the fixed structure box body, two belt conveying devices, two screening material devices and two flat plate feeding devices which are bilaterally symmetrical are sequentially arranged in the fixed structure box body from bottom to top, and a roller moving assembly is arranged on the lower surface of the bottom of the fixed structure box body;
the fixed structure box body comprises a bottom plate, two left stand columns, two middle stand columns and two right stand columns, wherein the bottom plate is a rectangular plate which is horizontally arranged, the roller moving assembly is arranged on the lower surface of the bottom plate, the lengths of the two left stand columns, the two middle stand columns and the two right stand columns are equal, the two left stand columns and the two right stand columns are respectively and vertically arranged at four corners of the upper surface of the bottom plate, the two left stand columns are positioned on the left side of the bottom plate, the two right stand columns are positioned on the right side of the bottom plate, and the two middle stand columns are vertically fixed at the middle positions of the front side and the rear side of the upper surface of the bottom plate;
the opposite surfaces of the two left upright posts, the right side surfaces of the two left upright posts, the opposite surfaces of the two middle upright posts, the left side surfaces of the two middle upright posts, the right side surfaces of the two middle upright posts, the opposite surfaces of the two right upright posts and the middle parts of the left side surfaces of the two right upright posts are all provided with first clamping grooves along the vertical direction, a left baffle is fixedly connected between the two left upright posts, a right baffle is fixedly connected between the two right upright posts, a middle baffle is fixedly connected between the two middle upright posts, two belt conveying devices, two screening material devices and two flat plate feeding devices are symmetrically arranged right above the bottom plate from bottom to top in turn, a rear baffle is fixedly connected between the left upright post and the middle upright post which are positioned at the rear side of the upper surface of the bottom plate and between the right upright post and the middle upright post which are positioned at the rear side of the upper surface of the bottom plate, the upper parts of the left upright post and the middle upright post which are positioned at the front side of the upper surface of the bottom plate and the right upright post and the middle upright post which are positioned at the front side of the upper surface of the bottom plate are fixedly connected with a front baffle plate, two vertical side edges of the left baffle plate, two vertical side edges of the right baffle plate, two vertical side edges of the middle baffle plate, two vertical side edges of the rear baffle plate and two vertical side edges of the front baffle plate are respectively inserted into corresponding first clamping grooves, the lower parts of the left upright post and the middle upright post which are positioned at the front side of the upper surface of the bottom plate and the right upright post and the middle upright post which are positioned at the front side of the upper surface of the bottom plate are fixedly connected with a box door opening and closing mechanism, and the two box door opening and closing mechanisms respectively correspond to two sets of belt conveying devices at vertical height positions;
a control console is arranged on the left side part or the right side part of the fixed structure box body, and the belt conveying device and the flat plate feeding device are connected with the control console;
the left belt conveyer comprises a belt, two rollers and a conveying motor, vertical support columns are respectively fixed on the right side of the left baffle and the front side and the rear side of the left side of the middle baffle, two shaft ends of the two rollers are respectively rotatably arranged on the two vertical support columns on the front side and the two vertical support columns on the rear side, the central lines of the two rollers and the central line of the conveying motor are horizontally arranged left and right, the belt is rotatably sleeved on the outer surfaces of the two rollers, the conveying motor is fixedly arranged on the front side of the left baffle, a power shaft of the conveying motor is in transmission connection with the left shaft end of the roller on the front side, and the conveying motor is connected with the control console;
the two sets of material screening devices have the same structure, the left material screening device comprises two rectangular chute guide rails, a rectangular screen, a rectangular pulling plate, a C-shaped pull ring and a vibrating motor, the two rectangular chute guide rails have the same structure and are symmetrically arranged, the two rectangular chute guide rails are horizontally arranged along the front and back directions, the two rectangular chute guide rails are respectively and fixedly arranged at the middle part of the right side surface of the left baffle plate and the middle part of the left side surface of the middle baffle plate, the rectangular screen is horizontally arranged, the left side edge and the right side edge of the rectangular screen are respectively and fixedly connected with a rectangular guide block through a plurality of bolts, the lengths of the two rectangular chute guide rails and the lengths of the two rectangular guide blocks are the same as the lengths of the left side edge of the rectangular screen, the left side surface of the left rectangular guide block is uniformly provided with a plurality of left pulleys, each left pulley is in rolling connection with a left rectangular chute guide rail, a plurality of right pulleys are uniformly arranged on the right side surface of a right rectangular guide block, each right pulley is in rolling connection with a right rectangular chute guide rail, a rectangular pulling plate is vertically arranged along the left-right direction, the length of the rectangular pulling plate is the same as that of the front side edge of a rectangular screen, the front side edge of the rectangular screen is fixedly connected with the middle part of the rear side surface of the rectangular pulling plate, a C-shaped pull ring is fixedly connected with the middle part of the front side surface of the rectangular pulling plate, a horizontal rectangular slotted hole matched with the rectangular pulling plate in size is formed in the middle part of the left front baffle, the rectangular screen penetrates through the horizontal rectangular slotted hole and is inserted into a fixed structure box body, a vibrating motor is fixedly arranged at the rear part of the lower surface of the rectangular screen, and the vibrating motor is connected with a control console through a circuit;
the two sets of flat plate feeding devices have the same structure, the left flat plate feeding device comprises two opening and closing plates, the two opening and closing plates have the same structure and are arranged in a front-back symmetrical way, the front side edge of the front opening and closing plate is horizontally hinged on the rear side surface of the left front baffle through a plurality of hinges, the rear side edge of the rear opening and closing plate is horizontally hinged on the front side surface of the left rear baffle through a plurality of hinges, and a set of folding device is arranged between the lower side surfaces of the two opening and closing plates and the rear side surface of the left front baffle and the front side surface of the left rear baffle respectively; the front folding device comprises two groups of crank sliding block mechanisms, the two groups of crank sliding block mechanisms are identical in structure and are arranged in a bilateral symmetry manner, the left crank sliding block mechanism comprises a swinging arm rod and a sliding block, a U-shaped hinged support is fixed on the left side part of the rear side surface of the left front baffle, the rear side, the upper side and the lower side of the U-shaped hinged support are all open, left and right through rotating pin holes are correspondingly formed in the left side plate and the right side plate of the U-shaped hinged support in a bilateral manner, connecting pin holes matched with the rotating pin holes are formed in the upper end of the swinging arm rod, the upper end of the swinging arm rod is arranged between the left side plate and the right side plate of the U-shaped hinged support, a rotating shaft is connected in the left and right rotating pin holes and the connecting pin holes in a penetrating manner, the rotating shaft is fixedly connected with the connecting pin holes through keys, the rotating shaft is rotationally connected with the left rotating pin hole and the right rotating pin hole through bearings, a rotating motor is fixedly arranged on the left side part of the front side surface of the left front baffle, the central line of the rotating motor is horizontally arranged front and back, a front-back transparent rotating shaft hole is formed in the left side part of the front side surface of the left front baffle, a power shaft of the rotating motor is correspondingly rotationally arranged in the rotating shaft hole, the rear end of the power shaft of the rotating motor penetrates through the rear side surface of the left front baffle, the rear end of the power shaft of the rotating motor is in transmission connection with the left end of the rotating shaft through a conical gear set, the lower end of a swing arm rod is hinged with a sliding block, a dovetail groove with an open lower part is formed in the left side part of the lower surface of the front opening and closing plate along the front-back direction, and the sliding block is matched and slidingly arranged in the dovetail groove;
the roller moving assembly comprises six groups of universal wheels with self-locking function, and the six groups of universal wheels are all arranged on the lower surface of the bottom plate;
the two box door opening and closing mechanisms are identical in structure and symmetrically arranged, the box door opening and closing mechanism between the left upright post and the middle upright post which are positioned on the front side of the upper surface of the bottom plate comprises a box door and a C-shaped pull ring, the upper side edge of the box door is rotatably arranged on the front side surface of the left front baffle through a hinge, a rectangular opening which is matched with the box door in structure is formed in the lower part of the left front baffle, the box door covers the butt joint rectangular opening, the rear side surface of the box door is opposite to the front side part of the roller on the front side, and the C-shaped pull ring is fixedly connected in the middle of the front side surface of the box door;
the disassembly and assembly structure box body comprises six connecting columns and seven vertical connecting plates, the six connecting columns are vertically arranged, cylindrical bolts are respectively arranged on the lower end faces of the six connecting columns, splicing blind holes matched with the cylindrical bolts are respectively formed in the upper end faces of the two left upright columns, the two right upright columns and the two middle upright columns, the six connecting columns are correspondingly inserted into the six splicing blind holes, the seven vertical connecting plates are correspondingly arranged between the two adjacent connecting columns respectively, second clamping grooves are respectively formed in opposite side faces of the two adjacent connecting columns along the vertical direction, and two vertical side edges of the seven vertical connecting plates are respectively spliced in the corresponding second clamping grooves;
the using method comprises the following steps:
(1) Firstly, using a roller moving assembly below a fixed structure box body to push the fixed structure box body to move to a storage position of a similar material for similar simulation in a laboratory, and opening the self-locking function of the universal wheel;
(2) Storing similar materials: directly placing similar materials on two opening and closing plates of a flat plate feeding device in a fixed structure box body, wherein the two opening and closing plates are in a horizontal butt joint state, and if more similar materials are required to be stored, inserting the detachable structure box body at the top of the fixed structure box body;
(3) Screening similar materials: the experiment personnel starts the rotating motors on the front baffle and the rear baffle through the control console to enable the rotating motors to rotate positively, because the power shafts of the rotating motors are in transmission connection with the rotating shafts through the conical gear sets, the rotating shafts are fixedly connected with the connecting pin holes at the upper ends of the swinging arm rods, the power shafts of the rotating motors drive the rotating shafts to rotate, the swinging arm rods are driven to swing downwards around the U-shaped hinged support, the sliding blocks swing downwards, and because the sliding blocks are matched and slide in the dovetail grooves at the lower sides of the opening and closing plates, the sliding blocks are also in sliding connection with the lower sides of the opening and closing plates when swinging downwards, so that the sliding blocks drive the two opening and closing plates to synchronously rotate downwards, the adjacent two sides of the two opening and closing plates are separated and opened to form gaps with proper size, the rotating motors stop rotating, similar materials on the two opening and closing plates slide downwards to the screen mesh below the two opening and closing plates through the gaps under the action of gravity, after a certain amount of similar materials are carried on the screen, the rotating motor is reversed, the rotating motor drives the rotating shaft to reversely rotate, the rotating shaft drives the swinging arm rod to swing upwards around the U-shaped hinged support, the sliding block swings upwards, the sliding block drives the two opening and closing plates to synchronously rotate upwards until the two opening and closing plates are horizontal and the adjacent two sides of the two opening and closing plates are in butt joint, the rotating motor stops rotating, an experimenter starts the vibrating motor on the screen through the control console, the vibrating motor drives the screen to vibrate up and down, so that the similar materials on the screen are screened through the screen, the similar materials with the particle size meeting the experimental requirements fall onto a belt below the screen, the experimenter starts the conveying motor on the left baffle and the right baffle through the control console, and the power shaft of the conveying motor drives the roller to rotate, the belt is rotated around the roller, so that similar materials screened on the belt are conveyed towards a rectangular opening on the front baffle, a C-shaped pull ring is pulled, a box door is opened, similar materials are collected for a similar simulation experiment, finally, a screen is pulled out of a fixed structure box body through pulling the C-shaped pull ring on the front side surface of the rectangular pull plate, and therefore similar materials with larger particle sizes left on the screen are poured out, and different screens are replaced and installed for screening similar materials with different particle sizes;
(4) And after the material box for the similar simulation is used in the laboratory, recycling is carried out.
2. The method for using a material box for laboratory similarity simulation according to claim 1, wherein: the recovery operation in the step (4) is as follows: taking out each vertical connecting plate from the second clamping grooves of two adjacent connecting columns, pulling out the six connecting columns from the corresponding six inserting holes, storing the vertical connecting plates and the six connecting columns, closing the self-locking function of the universal wheel, pushing the fixed structure box to the storage position of the material box for the similar simulation in a laboratory, and opening the self-locking function of the universal wheel.
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| CN113477520B (en) * | 2021-08-16 | 2022-10-18 | 徐州鑫丰农业科技有限公司 | Pleurotus eryngii screening and shunting device |
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| CN108043706A (en) * | 2017-11-29 | 2018-05-18 | 赖文焘 | A kind of construction sand screening plant |
| CN108328085A (en) * | 2018-02-23 | 2018-07-27 | 河南理工大学 | A kind of use for laboratory analog material storage box and its application method |
| CN109078835A (en) * | 2018-08-07 | 2018-12-25 | 东北大学 | A kind of automatic screening of fine particle for building and proportion measurement device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| AU2015413844B2 (en) * | 2015-11-02 | 2019-05-30 | Trinity Bay Equipment Holdings, LLC | Real time integrity monitoring of on-shore pipes |
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| CA2521779A1 (en) * | 2005-09-30 | 2007-03-30 | Trevor Strome | Sample washer and separator for shale shaker |
| CN108043706A (en) * | 2017-11-29 | 2018-05-18 | 赖文焘 | A kind of construction sand screening plant |
| CN108328085A (en) * | 2018-02-23 | 2018-07-27 | 河南理工大学 | A kind of use for laboratory analog material storage box and its application method |
| CN109078835A (en) * | 2018-08-07 | 2018-12-25 | 东北大学 | A kind of automatic screening of fine particle for building and proportion measurement device and method |
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