CN109501008B - Automatic metering and adding device for commercial concrete aggregate and operation method - Google Patents
Automatic metering and adding device for commercial concrete aggregate and operation method Download PDFInfo
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- CN109501008B CN109501008B CN201811444932.XA CN201811444932A CN109501008B CN 109501008 B CN109501008 B CN 109501008B CN 201811444932 A CN201811444932 A CN 201811444932A CN 109501008 B CN109501008 B CN 109501008B
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- hopper
- powder admixture
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
- B28C7/067—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors by means of stationary hoppers, chambers or bins from which the material is fed gravitationally, e.g. having agitating means therein
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0422—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery
- B28C7/044—Weighing mechanisms specially adapted therefor; Weighing containers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0422—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery
- B28C7/0445—Weighing predetermined amounts of ingredients, e.g. for consecutive delivery using a weighing receptacle, the feeding thereof being automatically suspended after a predetermined weight has been obtained
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
- B28C7/068—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors having means to elevate or hoist a charging-bin or container
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- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
Abstract
The invention relates to a commercial concrete aggregate automatic metering and adding device and an operation method, which are characterized in that a lower hopper body is provided with a suspension rod, a stress sensor is arranged on the suspension rod, a metering hopper is suspended and pulled below the stress sensor, and a dust removal system is arranged on the metering hopper; the automatic adding system for accurately weighing the powder admixture is composed of an accurate weighing device and an automatic adding device, when the powder admixture is weighed by the accurate weighing device, the powder admixture is discharged into a sleeve through a quantitative pre-storage hopper of the powder admixture, and an air cylinder telescopic rod pushes a piston to push the powder admixture to a U-shaped discharging groove to enter a powder admixture feeding nozzle to be finally mixed with concrete in a metering hopper. The invention can accurately and quantitatively weigh concrete aggregate and powder admixture, and automatically add the quantitative powder admixture into the weighing hopper, thereby having less powder admixture scattering, less manual operation, high automation rate and better economic and technical benefits.
Description
Technical Field
The invention relates to an automatic metering and adding device for commercial concrete aggregate and an operation method thereof, which are suitable for adding metered materials below a hopper of a traditional mixer, are convenient for accurately metering and adding powder additives according to design requirements, and then are seamlessly butted and poured into a stirring hopper, so that the pollution to the surrounding environment caused by scattering is avoided.
Background
When the powder admixture of the traditional stirrer is added, a certain amount of the powder admixture, the fiber and the steel fiber are manually weighed from a bag and directly put into the stirrer through a container or conveyed into the stirrer through a belt, and the whole process can be finished through twice operation, so that time and labor are wasted; when concrete is prepared, the concrete directly falls onto an electronic scale below from a hopper, and the concrete has a higher vertical downward speed, so that the impact on the electronic scale is higher, and the weighing precision of the electronic scale is influenced; thirdly, when dry ash falls off after the concrete is put, dust pollution is generated; and fourthly, the device is easily influenced by weather such as strong wind, strong rain and the like, the safety of workers cannot be guaranteed, and the device is easily scattered in the adding process to pollute the surrounding environment. In view of this, in order to solve the problems of complicated adding process of the powdery admixture, large fluctuation during weighing by an electronic scale, dust pollution reduction and the like, the invention provides a simple and effective automatic metering and adding device for commercial concrete aggregate and an operation method thereof.
Disclosure of Invention
The invention aims to provide a device for automatically metering commercial concrete aggregate, accurately weighing powder admixture, automatically adding the powder admixture and removing dust, and has better technical and economic benefits.
In order to realize the technical purpose, the invention adopts the following technical scheme: an automatic metering and adding device for commercial concrete aggregate is characterized by comprising a powder admixture proportioning accurate weighing device, a powder admixture automatic adding device and a commercial concrete aggregate automatic metering and dedusting device; the accurate weighing device for the powder admixture batching comprises a powder admixture feeding hopper, a first feeding hopper support, a powder admixture feeding port, an automatic gear shifting valve, an electronic spring scale, a powder admixture quantitative prestoring hopper, a telescopic valve, a sleeve receiving port and a sleeve, wherein the powder admixture feeding hopper is arranged on the first feeding hopper support, the automatic gear shifting valve is arranged at the powder admixture feeding port, the electronic spring scale is arranged at the lower part of the powder admixture feeding hopper, the powder admixture quantitative prestoring hopper is hung below the electronic spring scale, the telescopic valve is arranged at the lower part of the powder admixture quantitative prestoring hopper, and the feeding port of the powder admixture quantitative prestoring hopper is aligned with the sleeve receiving port for feeding;
the automatic powder additive adding device comprises a powder additive adding system platform support, a powder additive feeding nozzle, a powder additive quantitative pre-storage hopper, a telescopic valve, a sleeve receiving port, a piston, a sleeve, a U-shaped blanking groove push rod, a cylinder telescopic rod, a cylinder fixing plate, an electromagnetic valve and an air compressor, wherein the powder additive quantitative pre-storage hopper blanking port is in butt joint with the sleeve receiving port for discharging, the piston is arranged in the sleeve, the piston slides in the sleeve under the pushing of the cylinder telescopic rod to push the powder additive into the U-shaped blanking groove, the U-shaped blanking groove is hinged at a notch at the lower part of the front end of the sleeve, the U-shaped blanking groove is hinged with the U-shaped blanking groove push rod, and the U-shaped blanking groove push rod is hinged with the cylinder telescopic rod, the rotation of the U-shaped blanking groove is adjusted through the telescopic rod of the air cylinder; the commercial concrete aggregate automatic metering and dust removing device comprises an upper hopper body, a second hopper support, a lower hopper body, a stiffening rib plate, a hanging rod, a stress sensor, a hopper feed opening, a connecting rod, a buffer plate, a dust removal opening and closing door, a dust removal hose, a hard plastic pipe, an axial flow fan, a dust removal vertical pipe stabilizing frame, a weighing hopper holding frame, a dust collection sleeve, a powder additive adding system platform support, a weighing hopper, a powder additive feeding nozzle and a powder additive accurate weighing automatic adding device, wherein the stiffening rib plate is welded on two sides of the lower hopper body, the stress sensor is arranged on the stiffening rib plate, the weighing hopper is hung below the stress sensor, the connecting rod is arranged on two sides of the hopper feed opening, the connecting rod is detachably connected with the buffer plate, and the weighing hopper is provided with one powder additive feeding nozzle, the automatic powder additive adding device for accurately weighing the powder additive can add the powder additive into the metering hopper through the powder additive feeding nozzle, the inner wall of the metering hopper is provided with the dust removing opening, the outer side of the dust removing opening is connected with the dust removing hose, and dust residues in the metering hopper are sucked back into the dust collecting sleeve through a pipeline by the negative pressure generated by the axial flow fan.
In some embodiments, the capacity of the powder admixture hopper is designed according to 2 bags of high-efficiency powder admixture charged each time, the powder admixture hopper is wide at the top and narrow at the bottom, the first hopper support is selected from telescopic supports, and the automatic gear shifting valve has 5 gears.
In some embodiments, the retractable valve controls the feeding of the quantitative pre-storage hopper for powder admixture, when the mass of powder in the quantitative pre-storage hopper for powder admixture reaches a specified value, the first hopper support is adjusted to move the quantitative pre-storage hopper for powder admixture downwards, and when the feeding port of the quantitative pre-storage hopper for powder admixture aligns with the sleeve receiving port, the retractable valve is opened to feed.
In some embodiments, the automatic adding device is fixed on the platform support of the powder admixture adding system, the platform support of the powder admixture adding system can freely lift, a feed opening of the powder admixture quantitative prestoring hopper is in butt joint with the sleeve receiving opening, the telescopic valve is arranged at the lower part of the powder admixture quantitative prestoring hopper, and the telescopic valve controls the powder admixture in the powder admixture quantitative prestoring hopper to be lowered.
In some embodiments, the sleeve material receiving opening is arranged above the tail portion of the sleeve, the piston is arranged in the sleeve and fixedly connected with the cylinder telescopic rod, the piston can slide in the sleeve, the lower portion of the front end of the sleeve is provided with a notch, the piston pushes the powder admixture to the U-shaped blanking groove under the pushing of the cylinder telescopic rod, the cylinder fixing plate is arranged behind the cylinder, and the cylinder and the air compressor are both electrically connected with the electromagnetic valve.
In some embodiments, the suspension rod is arranged below the stiffening rib plate, the stress sensor is installed on the suspension rod, the weighing hopper is suspended below the suspension rod, and the stress sensor can accurately weigh the mass of concrete in the weighing hopper according to the design quality requirement.
In some embodiments, a plurality of dust removing openings are formed in the periphery of the inner wall of the measuring hopper, each dust removing opening is provided with a dust removing opening and closing door, the outer side of each dust removing opening is connected with the dust removing hose, the other side of the dust removing hose is sleeved on the hard plastic pipe, a tee joint is arranged on the hard plastic pipe, the axial flow fan is arranged at the tee joint, the dust removing vertical pipe is connected with the dust collecting sleeve, and dust residues in the measuring hopper are sucked back into the dust collecting sleeve through a pipeline by negative pressure generated by the axial flow fan.
The operation method of the automatic commercial concrete aggregate metering and adding device comprises the following steps:
the method comprises the following steps: feeding by a hopper: after the commercial concrete aggregate is stirred, the aggregate is conveyed into the upper hopper body, measures for monitoring the concrete state are made, then 2 bags of high-efficiency powder admixture are added into the powder admixture feeding hopper on the ground, and sealing measures are made.
Step two: quantitative feeding of a metering hopper: recording an initial value a of the stress sensor, setting a quantitative concrete design value as b, opening a hopper feed opening to discharge the metering hopper, slowing down the discharging speed when the value of the stress sensor is close to the value a + b, closing the hopper feed opening when the value of the stress sensor reaches a + b and does not change any more, stopping discharging, and setting the quantitative commercial concrete in the metering hopper as b.
Step three: quantitative pre-storage hopper quantitative weighing of powder admixture: when the design value of quantitative concrete in the weighing hopper is b and the corresponding addition amount of the powder admixture is c, recording the initial value of the electronic spring scale as d, opening the highest gear of the automatic gear shifting valve of the powder admixture feeding hopper to discharge, when the data displayed by the electronic spring scale is close to the value of the design value c + d, reducing the gear of the automatic gear shifting valve and slowing down the discharging speed, and when the data displayed by the electronic spring scale reaches the value of the design value c + d, closing the automatic gear shifting valve and stopping discharging of the powder admixture feeding hopper, so that the quantitative quality of the powder admixture in the powder admixture quantitative prestoring hopper is c.
Step four: prestore the hopper with the sleeve connects the material mouth butt joint: when the external dosage of the powder admixture quantitative prestoring hopper reaches the design quantity c, the first hopper support is adjusted to enable the powder admixture feeding hopper and the powder admixture quantitative prestoring hopper to move downwards, and when the feeding port of the powder admixture quantitative prestoring hopper is aligned with the sleeve receiving port, the first hopper support stops sliding downwards and is fixed.
Step five: the platform bracket of the powder additive adding system slides and rises: and after the pre-storage hopper is successfully butted with the sleeve receiving port, the platform support of the powder admixture adding system is slid to ascend to a proper position beside the powder admixture feeding nozzle, so that the sleeve is positioned above the powder admixture feeding nozzle in an inclined manner.
Step six: feeding a powder additive quantitative pre-storage hopper: and opening the telescopic valve to discharge, pouring all the powder admixture in the quantitative powder admixture prestorage hopper into the sleeve through the sleeve material receiving port, and closing the telescopic valve after pouring.
Step seven: pushing materials by using a piston: opening an electromagnetic valve and an air compressor, controlling the air cylinder through the electromagnetic valve,
the telescopic rod of the air cylinder stretches out to push the piston to slide towards the front end of the sleeve to push the powder admixture to move towards the direction of the opening of the sleeve, meanwhile, the push rod of the U-shaped blanking groove pushes the U-shaped blanking groove to rotate, the U-shaped blanking groove rotates to be just butted with the opening of the sleeve, at the moment, the U-shaped blanking groove stretches into the powder admixture feeding nozzle to a certain depth, the powder admixture passes through the U-shaped blanking groove to slide into the powder admixture feeding nozzle, and at the moment, the powder admixture is fully mixed with commercial concrete in the weighing hopper.
In some embodiments, step eight: dust removal: when the commercial concrete in the weighing hopper is prepared, the commercial concrete is discharged to a concrete transport vehicle, when the commercial concrete in the weighing hopper is completely discharged, the dust removal opening and closing door is opened, the axial flow fan is started to exhaust air, and the axial flow fan generates negative pressure to suck dust residues in the weighing hopper back to the dust collection sleeve through the dust removal vertical pipe for recycling.
The invention has the following characteristics and beneficial effects:
(1) according to the invention, the electronic spring scale is arranged at the lower part of the powder admixture feeding hopper, and the quantitative pre-storage hopper for the powder admixture is hung below the electronic spring scale, so that the powder admixture is accurately weighed, and the accuracy of the adding quality of the powder admixture is improved.
(2) The powder additive feeding hopper is supported by the feeding hopper support, the feeding hopper support can stretch and retract, so that a feeding hole of the powder additive quantitative prestoring hopper is accurately aligned with a sleeve receiving hole and then fed, the piston is pushed by the telescopic rod of the air cylinder to push the powder additive into the U-shaped feeding groove, and the problem of pollution caused by weather influence in the feeding process of the powder additive is solved.
(3) The dust removal device is arranged on the inner wall of the metering hopper, and dust removal is carried out in time after the concrete is put, so that the effective utilization rate of powder is improved, and the environment pollution caused by direct discharge of dust in the atmosphere is avoided.
(4) According to the invention, the buffer device is arranged in the weighing hopper, so that the impact of concrete on the weighing hopper in the feeding process is reduced, and the accuracy of measuring the concrete quality of the weighing hopper is improved.
Drawings
FIG. 1 is a structural diagram of a precise weighing device for powder admixture proportioning according to the present invention;
FIG. 2 is a structural view of an automatic powder admixture feeding apparatus according to the present invention;
FIG. 3 is a schematic structural view of the commercial concrete aggregate automatic metering and dust removing device of the present invention;
in the figure: an upper hopper body 1, a second hopper bracket 2, a lower hopper body 3, stiffening rib plates 4, a suspender 5, a stress sensor 6, a hopper feed opening 7, a connecting rod 8, a buffer plate 9, a dust removal opening and closing door 10, a dust removal hose 11, a hard plastic pipe 12, an axial flow fan 13, a dust removal vertical pipe 14, a dust removal vertical pipe stabilizing frame 15, a weighing hopper support frame 16, a dust collection sleeve 17, a powder admixture adding system platform bracket 18, a weighing hopper 19, a powder admixture feeding nozzle 20, a powder admixture accurate weighing automatic adding device 21, a powder admixture feeding hopper 22, a first hopper bracket 23, a powder admixture feeding hopper feed opening 24, an automatic gear shifting valve 25, an electronic spring scale 26, a powder admixture quantitative pre-storage hopper 27, a telescopic valve 28, a sleeve receiving opening 29, a piston 30, a sleeve 31, a reinforcing rib plate 5, a stress sensor 6, The device comprises a U-shaped blanking groove 32, a U-shaped blanking groove push rod 33, an air cylinder telescopic rod 34, an air cylinder 35, an air cylinder fixing plate 36, an electromagnetic valve 37 and an air compressor 38.
Detailed Description
The invention does not need to describe in a repeated way, and focuses on the implementation mode of the structure and the operation method of the invention.
The precise weighing device for the powder admixture batching as shown in fig. 1 mainly comprises a powder admixture feeding hopper 22, a first feeding hopper bracket 23, a powder admixture feeding hopper discharging port 24, an automatic gear shifting valve 25, an electronic spring scale 26, a powder admixture quantitative pre-storage hopper 27, a telescopic valve 28, a sleeve receiving port 29, a sleeve 31 and the like.
The volume of the powder admixture feeding hopper 22 is designed according to the 2-bag high-efficiency powder admixture feeding size at each time, the cross section of the powder admixture feeding hopper 22 is wide at the top and narrow at the bottom, the lower narrow end of the powder admixture feeding hopper 22 is welded with the first feeding hopper support 23, the first feeding hopper support 23 is implemented as a telescopic support, in other words, the telescopic support can be stretched in the vertical direction, and therefore the vertical position of the powder admixture feeding hopper 22 and the powder admixture quantitative pre-storage hopper 27 is adjusted. An electronic spring scale 26 is hung around the outer wall of the powder admixture feeding hopper 22, a powder admixture quantitative pre-storage hopper 27 is hung below the electronic spring scale 26, and a telescopic valve 28 is arranged at the lower part of the powder admixture quantitative pre-storage hopper 27.
An automatic gear shifting valve 25 is arranged at a discharge port 24 of the powder admixture feeding hopper, the automatic gear shifting valve 25 has 5 gears, and the 5 gears respectively correspond to different discharging speeds of the powder admixture feeding hopper 22; when the addition amount of the powder admixture which is designed to be added is a value, the highest-gear discharging of the automatic gear shifting valve 25 is opened, when the data displayed by the electronic spring scale 26 is close to the value a of the design numerical value, the gear of the automatic gear shifting valve 25 is reduced, the discharging speed is slowed down, when the data displayed by the electronic spring scale 26 reaches the value a of the design numerical value, the automatic gear shifting valve 25 is closed, the discharging of the powder admixture feeding hopper 22 is stopped, the first feeding hopper support 23 is adjusted to enable the powder admixture feeding hopper 22 and the powder admixture quantitative prestoring hopper 27 to move downwards, when the discharging opening of the powder admixture quantitative prestoring hopper is aligned with the sleeve receiving opening 29, the telescopic valve 28 is opened to discharge, and all the powder admixture in the powder admixture quantitative prestoring hopper 27 is poured into the sleeve 31.
As shown in fig. 2, the automatic powder admixture adding device mainly comprises a platform support 18 of a powder admixture adding system, a powder admixture feeding nozzle 20, a quantitative powder admixture pre-storage hopper 27, a telescopic valve 28, a sleeve receiving port 29, a piston 30, a sleeve 31, a U-shaped blanking groove 32, a U-shaped blanking groove push rod 33, an air cylinder telescopic rod 34, an air cylinder 35, an air cylinder fixing plate 36, an electromagnetic valve 37, an air compressor 38 and the like.
The automatic adding device is fixed on the platform support 18 of the powder admixture adding system, and the platform support 18 of the powder admixture adding system can be lifted freely. When the weight of the powder admixture in the powder admixture quantitative prestorage hopper 27 reaches the amount required by design, the platform support 18 of the powder admixture adding system rises to a proper position beside the powder admixture charging nozzle 20, the position of the powder admixture quantitative prestorage hopper 27 is adjusted, the discharging port of the powder admixture quantitative prestorage hopper 27 is in butt joint with the sleeve receiving port 29, the lower part of the powder admixture quantitative prestorage hopper 27 is provided with a telescopic valve 28, and the telescopic valve 28 controls the powder admixture in the powder admixture quantitative prestorage hopper 27 to be discharged.
A sleeve receiving port 29 is arranged above the tail portion (right side direction in the figure) of the sleeve 31, a piston 30 is arranged inside the sleeve 31, the piston 30 is connected with an air cylinder telescopic rod 34, the piston 30 can slide in the sleeve 31, a notch is arranged on the lower portion of the front end (left side direction in the figure) of the sleeve 31, and the piston 30 pushes the powder admixture to the U-shaped blanking groove 32 from the notch under the pushing of the air cylinder telescopic rod 34.
Further, the U-shaped blanking groove 32 is hinged to a notch at the lower part of the front end of the sleeve 31, the U-shaped blanking groove 32 is hinged to the U-shaped blanking groove push rod 33, the U-shaped blanking groove push rod 33 is hinged to the air cylinder telescopic rod 34, and the rotation of the U-shaped blanking groove 32 is adjusted through the air cylinder telescopic rod 34; when the cylinder telescopic rod 34 is extended, the piston 30 slides to the front end (left direction in the figure) of the sleeve 31 to push the powder admixture to move towards the opening direction of the sleeve 31, meanwhile, the U-shaped blanking groove push rod 33 pushes the U-shaped blanking groove 32 to rotate, the U-shaped blanking groove 32 rotates to be just butted with the opening of the sleeve 31, at the moment, the U-shaped blanking groove 32 already extends to a certain depth in the powder admixture feeding nozzle 20, and the powder admixture slides into the powder admixture feeding nozzle 20 through the U-shaped blanking groove 32.
The rear of the air cylinder 35 is provided with an air cylinder fixing plate 36, two inverted semicircular hinges are arranged between the air cylinder 35 and the air cylinder fixing plate 36, the left and right air vents on the upper portion of the electromagnetic valve 37 are respectively connected with the left and right air vents of the air cylinder 35 through pneumatic hoses, the air vents on the lower portion of the electromagnetic valve 37 are connected with an air hole of an air compressor 38 through the pneumatic hoses, a wire box on the right side of the electromagnetic valve 37 is connected with a 220V line to a mixing station working chamber, and the.
The commercial concrete aggregate automatic metering and dust removing device shown in fig. 3 comprises an upper hopper body 1, a second hopper support 2, a lower hopper body 3, stiffening rib plates 4, a suspender 5, a stress sensor 6, a hopper feed opening 7, a connecting rod 8, a buffer plate 9, a dust removal opening and closing door 10, a dust removal hose 11, a hard plastic pipe 12, an axial flow fan 13, a dust removal vertical pipe 14, a dust removal vertical pipe stabilizing frame 15, a hopper holding frame 16, a dust collection sleeve 17, a powder admixture adding system platform support 18, a metering hopper 19, a powder admixture feeding nozzle 20, a powder admixture accurate weighing automatic adding device 21 and the like.
The upper hopper body 1 and the lower hopper body 3 are fixed through a second hopper bracket 2, stiffening rib plates 4 are welded on two sides of the lower hopper body 3, a hanging rod 5 is arranged on the stiffening rib plates 4 through bolts, a stress sensor 6 is arranged on the hanging rod 5, a measuring hopper 19 is hung and pulled under the hanging rod 5, and measuring hopper supports 16 are arranged around the measuring hopper 19 to prevent the measuring hopper 19 from swinging in the feeding process; a powder admixture feeding nozzle 20 is arranged on the metering hopper 19, and an automatic powder admixture adding device 21 for accurately weighing the powder admixture adds the powder admixture into the metering hopper 19 through the powder admixture feeding nozzle 20.
7 outer walls of hopper feed opening set up connecting rod 8, and connecting rod 8 can stretch into 19 insides of weighing hopper along the vertical slip of 7 outer walls of hopper feed opening, and connecting rod 8 lower part sets up buffer board 9, is connected perpendicularly with buffer board 9, and connecting rod 8 and buffer board 9 can load and unload.
Further, when the concrete in the lower hopper body 3 is discharged to the measuring hopper 19 through the hopper discharge opening 7, the concrete firstly falls onto the buffer plate 9, then falls into the weighing hopper 19, reduces the impact on the weighing hopper 19, measures the mass of the concrete added into the weighing hopper 19 in real time through the stress sensor 6, when the amount of concrete in the weighing hopper 19 rises to about 5cm from the buffer plate 9, the connecting rod 8 slides upwards along the outer wall of the hopper feed opening 7 to drive the buffer plate 9 to move upwards for discharging continuously, when the data displayed on the stress sensor 6 reaches the design data, the lower bucket body 3 stops discharging, powder admixture is added into the metering hopper 19 through a powder admixture feeding nozzle 20 to prepare aggregate with design requirements.
A plurality of dust removing openings are arranged on the periphery of the inner wall of the measuring hopper 19, a dust removing opening and closing door 10 is arranged on each dust removing opening, the outer side of each dust removing opening is connected with a dust removing hose 11, and the other side of each dust removing hose 11 is sleeved on a hard plastic pipe 12
On the upper portion, a three-way connector is arranged on the hard plastic pipe 12, an axial flow fan 13 and a dust removal vertical pipe 14 are arranged at the three-way connector
The dust collection vertical pipe stabilizing frame 15 is used for fixing, the bottom of the dust collection vertical pipe 14 is connected with the dust collection sleeve 17, and after concrete ingredients in the metering hopper 19 are placed downwards, the axial flow fan 13 is started to generate negative pressure to suck dust residues in the metering hopper 19 back into the dust collection sleeve 17 through the dust collection vertical pipe 14.
The method also provides a commercial concrete aggregate automatic metering and adding device and an operation method, wherein the operation method comprises the following steps: the method comprises the following steps: feeding by a hopper: after the commercial concrete aggregate is stirred, the aggregate is conveyed into the upper hopper body 1, measures for monitoring the concrete state are made, then 2 bags of high-efficiency powder admixture are added into the powder admixture feeding hopper 22 on the ground, and sealing measures are made.
Step two: quantitative charging of a metering hopper 19: recording an initial value a of the stress sensor 6, setting a quantitative concrete design value as b, opening the feed opening 7 of the lower hopper body 3 to feed the weighing hopper 19, slowing down the feeding speed when the value of the stress sensor 6 is close to the value a + b, closing the feed opening 7 when the value of the stress sensor 6 reaches a + b and does not change any more, and stopping feeding, wherein the quantitative of the commercial concrete in the weighing hopper 19 is b.
Step three: the quantitative prestore hopper 27 of the powder admixture is fixed and weighed: when the design value of quantitative concrete in the weighing hopper 19 is b and the corresponding addition amount of the powder admixture is c, recording the initial value of the electronic spring scale 26 as d, opening the highest gear of the automatic gear-shifting valve 25 of the powder admixture feeding hopper 22 for feeding, when the data displayed by the electronic spring scale 26 is close to the value of the design value c + d, lowering the gear of the automatic gear-shifting valve 25, slowing down the feeding speed, when the data displayed by the electronic spring scale 26 reaches the value of the design value c + d, closing the automatic gear-shifting valve 25, stopping feeding of the powder admixture feeding hopper 22, and then quantitatively prestoring the powder admixture in the hopper 27 by the quantitative quality of the powder admixture as c.
Step four: the pre-storage hopper is in butt joint with the sleeve receiving port 29: when the external dosage of the quantitative powder admixture prestorage hopper 27 reaches the design dosage c, the first hopper support 23 is adjusted to enable the powder admixture feeding hopper 22 and the quantitative powder admixture prestorage hopper 27 to move downwards, and when the feeding port of the quantitative powder admixture prestorage hopper 27 is aligned with the sleeve receiving port 29, the downward sliding is stopped, and the first hopper support 23 is fixed.
Step five: the platform support 18 of the powder admixture adding system slides up: when the pre-storage hopper is successfully butted with the sleeve receiving port 29, the pre-storage hopper is lifted to a proper position beside the powder admixture feeding nozzle 20 by sliding the platform support 18 of the powder admixture feeding system, so that the sleeve 31 is positioned above the powder admixture feeding nozzle 20 in an inclined manner.
Step six: the quantitative pre-storage hopper 27 for powder additives discharges: the telescopic valve 28 is opened to discharge, all the powder admixture in the quantitative powder admixture prestorage hopper 27 is poured into the sleeve 31 through the sleeve material receiving port 29, and after the pouring is finished, the telescopic valve 28 is closed.
Step seven: pushing materials by using a piston: open solenoid valve 37 and air compressor machine 38, control cylinder 35 through solenoid valve 37, cylinder telescopic link 34 stretches out, promote piston 30 and slide to sleeve 31 front end (left side direction in the picture), promote the powder admixture and remove to sleeve 31 opening direction, U type feed chute push rod 33 promotes U type feed chute (32) and rotates simultaneously, U type feed chute 32 rotates and just docks with sleeve 31 opening, certain degree of depth in U type feed chute 32 has been stretched to powder admixture charging nozzle 20 this moment, the powder admixture slides in powder admixture charging nozzle 20 through U type feed chute 32, this moment the powder admixture in weighing hopper 19 with commercial concrete intensive mixing.
Step eight: dust removal: after the commercial concrete in the weighing hopper 19 is prepared, the commercial concrete is discharged to the concrete transport vehicle, after the commercial concrete in the weighing hopper 19 is discharged, the dust removal opening and closing door 10 is opened, the axial flow fan 13 is started to exhaust air, and the axial flow fan 13 generates negative pressure to suck dust residues in the weighing hopper 19 back to the dust collection sleeve 17 through the dust removal vertical pipe 14 for recycling.
Claims (9)
1. The automatic metering and adding device for the commercial concrete aggregate is characterized by comprising a powder admixture precise proportioning weighing device, a powder admixture automatic adding device and a commercial concrete aggregate automatic metering and dedusting device, wherein the powder admixture automatic adding device is arranged on the powder admixture precise proportioning weighing device for use; the accurate weighing device for the powder admixture batching comprises a powder admixture feeding hopper (22), a first feeding hopper support (23), a powder admixture feeding hopper discharging port (24)), an automatic gear shifting valve (25), an electronic spring scale (26), a powder admixture quantitative pre-storage hopper (27), a telescopic valve (28), a sleeve receiving port (29) and a sleeve (31), wherein the powder admixture feeding hopper (22) is arranged on the first feeding hopper support (23), the first feeding hopper support (23) is a telescopic support, the powder admixture feeding hopper (22) and the powder admixture quantitative pre-storage hopper (27) are moved downwards by adjusting the first feeding hopper support (23), the automatic gear shifting valve (25) is arranged at the powder admixture feeding hopper discharging port (24), the electronic spring scale (26) is arranged at the lower part of the powder admixture feeding hopper (22), the quantitative powder admixture pre-storage hopper (27) is hung below the electronic spring scale (26), the telescopic valve (28) is arranged at the lower part of the quantitative powder admixture pre-storage hopper (27), and a feeding port of the quantitative powder admixture pre-storage hopper is aligned with the sleeve receiving port (29) for feeding; the automatic powder additive adding device comprises a powder additive adding system platform support (18), a powder additive feeding nozzle (20), a powder additive quantitative pre-storage hopper (27), a telescopic valve (28), a sleeve material receiving opening (29), a piston (30), a sleeve (31), a U-shaped material discharging opening (32), a U-shaped material discharging opening push rod (33), an air cylinder telescopic rod (34), an air cylinder (35), an air cylinder fixing plate (36), an electromagnetic valve (37) and an air compressor (38), wherein the material discharging opening of the powder additive quantitative pre-storage hopper (27) is in butt joint with the sleeve material receiving opening (29) for material discharging, the piston (30) is arranged in the sleeve (31), the piston (30) slides in the sleeve (31) under the pushing of the air cylinder telescopic rod (34) to push the powder additive into the U-shaped material discharging opening (32), the U-shaped material discharging opening (32) is hinged to a notch at the lower part of the front end of the sleeve, the U-shaped blanking groove (32) is hinged to a U-shaped blanking groove push rod (33), the U-shaped blanking groove push rod (33) is hinged to the air cylinder telescopic rod (34), and the rotation of the U-shaped blanking groove (32) is adjusted through the air cylinder telescopic rod (34);
the commercial concrete aggregate automatic metering and dust removing device comprises an upper hopper body (1), a second hopper support (2), a lower hopper body (3), stiffening rib plates (4), a suspender (5), a stress sensor (6), a hopper feed opening (7), a connecting rod (8), a buffer plate (9), a dust removal opening and closing door (10), a dust removal hose (11), a hard plastic pipe (12), an axial flow fan (13), a dust removal vertical pipe (14), a dust removal vertical pipe stabilizing frame (15), a metering hopper support frame (16), a dust collection sleeve (17), a powder admixture adding system platform support (18), a metering hopper (19), a powder admixture feeding nozzle (20) and a powder admixture accurate weighing automatic adding device (21), wherein the stiffening rib plates (4) are welded on two sides of the lower hopper body (3), the stress sensor (6) is arranged on the stiffening rib plates (4), the measuring hopper (19) is hung and pulled under the stress sensor (6), the measuring hopper handrail (16) is arranged around the measuring hopper (19), the connecting rods (8) are arranged on two sides of the hopper feed opening (7), the connecting rods (8) vertically slide along the outer wall of the hopper feed opening (7), the connecting rod (8) is detachably connected with the buffer plate (9), the metering hopper (19) is provided with the powder additive feeding nozzle (20), the powder admixture accurate weighing automatic adding device (21) adds the powder admixture into the measuring hopper (19) through the powder admixture feeding nozzle (20), a dust removal opening is arranged on the inner wall of the metering hopper (19), the outer side of the dust removal opening is connected with the dust removal hose (11), and negative pressure is generated by the axial flow fan (13) to suck dust and residue in the metering hopper (19) back into the dust collection sleeve (17) through a pipeline.
2. The automatic commercial concrete aggregate metering and adding device as claimed in claim 1, wherein the capacity of the powder admixture feeding hopper (22) is designed according to 2 bags of high-efficiency powder admixture fed each time, the powder admixture feeding hopper (22) is wide at the top and narrow at the bottom, the first hopper support (23) is selected from telescopic supports, and the automatic gear shifting valve (25) has 5 gears.
3. The automatic commercial concrete aggregate metering and adding device according to claim 1 or claim 2, wherein the telescopic valve (28) controls the quantitative pre-storage hopper (27) for powder admixture to discharge, when the mass of powder in the quantitative pre-storage hopper (27) for powder admixture reaches a specified value, the first hopper bracket (23) is adjusted to enable the quantitative pre-storage hopper (27) for powder admixture to move downwards, and when the discharge port of the quantitative pre-storage hopper for powder admixture aligns with the sleeve receiving port (29), the telescopic valve is opened.
4. The automatic commercial concrete aggregate metering and adding device according to claim 3, wherein the automatic adding device is fixed on the platform support (18) of the powder admixture adding system, the platform support (18) of the powder admixture adding system can be lifted freely, a feeding port of the powder admixture quantitative prestoring hopper (27) is in butt joint with the sleeve receiving port (29), the lower part of the powder admixture quantitative prestoring hopper (27) is provided with the telescopic valve (28), and the telescopic valve (28) controls the powder admixture in the powder admixture quantitative prestoring hopper (27) to be fed downwards.
5. The automatic commercial concrete aggregate metering and adding device according to claim 4, wherein the sleeve receiving port (29) is arranged above the tail portion of the sleeve (31), the piston (30) is arranged inside the sleeve (31), the piston (30) is fixedly connected with the cylinder telescopic rod (34), the piston (30) slides in the sleeve (31), the lower portion of the front end of the sleeve (31) is provided with a notch, the piston (30) pushes powder additives into the U-shaped blanking groove (32) under the pushing of the cylinder telescopic rod (34), the cylinder fixing plate (36) is arranged behind the cylinder (35), and the cylinder (35) and the air compressor (38) are both electrically connected with the electromagnetic valve (37).
6. The automatic commercial concrete aggregate metering and adding device as claimed in claim 4 or claim 5, wherein the suspension rod (5) is arranged below the stiffening rib plate (4), the stress sensor (6) is mounted on the suspension rod (5), the weighing hopper (19) is hung below the suspension rod (5), and the stress sensor (6) accurately weighs the concrete in the weighing hopper (19) according to the design quality requirement.
7. The automatic commercial concrete aggregate metering and adding device according to claim 6, wherein a plurality of dust removing openings are formed in the periphery of the inner wall of the metering hopper (19), each dust removing opening is provided with the dust removing opening and closing door (10), the outer sides of the dust removing openings are connected with the dust removing hose (11), the other side of the dust removing hose (11) is sleeved on the hard plastic pipe (12), the hard plastic pipe (12) is provided with a three-way connector, the three-way connector is provided with the axial flow fan (13), the dust removing vertical pipe (14) is connected with the dust collecting sleeve (17), and dust and residues in the metering hopper (19) are sucked back into the dust collecting sleeve (17) through a pipeline by negative pressure generated by the axial flow fan (13).
8. A method of operating an automatic commercial concrete aggregate dosing apparatus as claimed in claim 1, including the steps of:
the method comprises the following steps: feeding by a hopper: after commercial concrete aggregate is well stirred, the aggregate is conveyed into the upper hopper body (1), measures for monitoring the concrete state are made, then 2 bags of high-efficiency powder admixture are added into the powder admixture feeding hopper (22) on the ground, and sealing measures are made;
step two: quantitative feeding of a metering hopper (19): recording the initial value a of the stress sensor (6), setting the design value of quantitative concrete as b, opening the hopper feed opening (7) to discharge the metering hopper (19), when the value of the stress sensor (6) is close to the value a + b, slowing down the discharge speed, when the value of the stress sensor (6) reaches a + b and does not change any more, closing the hopper feed opening (7), stopping discharging, then quantifying the commercial concrete in the metering hopper (19) as b, wherein the outer wall of the hopper feed opening (7) is provided with a connecting rod (8), the connecting rod (8) vertically slides along the outer wall of the hopper feed opening (7), the connecting rod (8) stretches into the interior of the metering hopper (19), the lower part of the connecting rod (8) is provided with a buffer plate (9), when the concrete in the hopper body (3) at the lower part discharges to the metering hopper (19) through the hopper feed opening (7), the concrete firstly falls onto the buffer plate (9) and then falls into the weighing hopper (19);
step three: the quantitative pre-storage hopper (27) for the powder admixture is used for weighing the fixed materials: when the design value of quantitative concrete in the metering hopper (19) is b and the corresponding addition amount of the powder admixture is c, recording the initial value of the electronic spring scale (26) as d, opening the highest gear of the automatic gear shifting valve (25) of the powder admixture feeding hopper (22) for discharging, when the data displayed by the electronic spring scale (26) is close to the value of the design value c + d, reducing the gear of the automatic gear shifting valve (25), slowing down the discharging speed, when the data displayed by the electronic spring scale (26) reaches the value of the design value c + d, closing the automatic gear shifting valve (25), stopping discharging of the powder admixture feeding hopper (22), and then the quantitative mass of the powder admixture in the powder admixture quantitative prestoring hopper (27) is c;
step four: prestore hopper (27) with sleeve connects material mouthful (29) butt joint: when the external dosage of the powder admixture quantitative prestorage hopper (27) reaches the design dosage c, adjusting the first hopper support (23) to enable the powder admixture hopper (22) and the powder admixture quantitative prestorage hopper (27) to move downwards, and when the feed opening of the powder admixture quantitative prestorage hopper (27) is aligned with the sleeve receiving opening (29), stopping sliding downwards and fixing the first hopper support (23);
step five: the platform bracket (18) of the powder additive adding system slides and rises: after the pre-storage hopper is successfully butted with the sleeve receiving port (29), the sleeve (31) is positioned above the powder admixture feeding nozzle (20) in an inclined manner by sliding the platform support (18) of the powder admixture feeding system to ascend to a proper position beside the powder admixture feeding nozzle (20);
step six: the quantitative pre-storage hopper (27) for powder additives discharges: opening the telescopic valve (28) to discharge, pouring all the powder admixture in the quantitative powder admixture pre-storage hopper (27) into the sleeve (31) through the sleeve material receiving port (29), and closing the telescopic valve (28) after pouring;
step seven: pushing materials by using a piston: opening a solenoid valve (37) and an air compressor (38), controlling the cylinder (35) by the solenoid valve (37), the cylinder telescopic rod (34) is extended to push the piston (30) to slide towards the front end of the sleeve (31) and push the powder admixture to move towards the opening direction of the sleeve (31), meanwhile, the U-shaped blanking groove push rod (33) pushes the U-shaped blanking groove (32) to rotate, the U-shaped blanking groove (32) rotates to be just butted with the opening of the sleeve (31), the U-shaped blanking groove (32) extends into the powder admixture feeding nozzle (20) for a certain depth at the moment, the powder admixture slides into the powder admixture feeding nozzle (20) through the U-shaped blanking groove (32), at this time, the powder admixture is sufficiently mixed with commercial concrete in the weighing hopper (19).
9. The method of operating a commercial concrete aggregate automatic dosing device as claimed in claim 8, comprising:
step eight: dust removal: after the commercial concrete in the metering hopper (19) is prepared, the commercial concrete is discharged to a concrete transport vehicle, after the commercial concrete in the metering hopper (19) is discharged, the dust removal opening and closing door (10) is opened, the axial flow fan (13) is started to exhaust air, and the axial flow fan (13) generates negative pressure to suck dust residues in the metering hopper (19) back into the dust collection sleeve (17) through the dust collection vertical pipe (14) for recycling.
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| CN111891572B (en) * | 2020-07-31 | 2022-04-22 | 南通华卓医疗科技有限公司 | Medicine quantitative output structure on medical electronic medicine dispensing equipment |
| CN113181819B (en) * | 2021-04-19 | 2022-07-12 | 芜湖万向新元智能科技有限公司 | Automatic small powder batching equipment |
| CN116252391B (en) * | 2023-05-16 | 2023-09-15 | 太原市万博建泰混凝土有限公司 | Conveyer for concrete preparation |
| CN117695942B (en) * | 2024-02-05 | 2024-04-16 | 烟台伟昌电子材料有限公司 | Reaction type polyurethane hot melt adhesive production reaction kettle |
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| CN204585563U (en) * | 2015-05-18 | 2015-08-26 | 苏州中联新航混凝土有限公司 | Concrete admixture automatically adding device |
| CN206011457U (en) * | 2016-08-08 | 2017-03-15 | 林敏� | A kind of concrete mixing plant measurement of sandstone weight device |
| CN206493445U (en) * | 2017-02-22 | 2017-09-15 | 中国水利水电第五工程局有限公司 | A kind of powdery concrete admixture adding set |
| CN206501268U (en) * | 2017-02-27 | 2017-09-19 | 北京高强亿圆混凝土有限责任公司 | The metering system of concrete mixing plant |
| CN207682674U (en) * | 2017-09-08 | 2018-08-03 | 深圳市深海绿色智能装备有限公司 | A kind of container-type concrete mixing plant |
| CN207415707U (en) * | 2017-11-14 | 2018-05-29 | 浙江龙游通衢建材有限公司 | A kind of anti-excessive device of additive |
| CN108247854A (en) * | 2018-02-11 | 2018-07-06 | 成都兴联宜科技有限公司 | A kind of environmentally friendly dust collecting system of concrete mixing plant |
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Effective date of registration: 20211231 Address after: 620041 No. 13, aluminosilicate Avenue, Xiuwen Town, Dongpo District, Meishan City, Sichuan Province Patentee after: Meishan Chengtou building materials Co.,Ltd. Address before: 310003 Three Units 1901, Wanda Commercial Center, Gongshu District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU JIANGRUN TECHNOLOGY Ltd. |
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