CN111686621A - Multi-material powdery additive preparation system and preparation method - Google Patents
Multi-material powdery additive preparation system and preparation method Download PDFInfo
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- CN111686621A CN111686621A CN202010730040.7A CN202010730040A CN111686621A CN 111686621 A CN111686621 A CN 111686621A CN 202010730040 A CN202010730040 A CN 202010730040A CN 111686621 A CN111686621 A CN 111686621A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/402—Mixers using gas or liquid agitation, e.g. with air supply tubes comprising supplementary stirring elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
- B01F33/401—Methods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/70—Mixers specially adapted for working at sub- or super-atmospheric pressure, e.g. combined with de-foaming
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/2201—Control or regulation characterised by the type of control technique used
- B01F35/2206—Use of stored recipes for controlling the computer programs, e.g. for manipulation, handling, production or composition in mixing plants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/7173—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper
- B01F35/71731—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper using a hopper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/71—Feed mechanisms
- B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
- B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/75—Discharge mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/79—Preventing lumping, or comminuting lumps, during feeding or discharging, e.g. by means of vibrations, or by scrapers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/80—Forming a predetermined ratio of the substances to be mixed
- B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
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Abstract
The invention provides a multi-material powdery additive preparation system and a preparation method. The system consists of a powder storage and metering subsystem, a powder mixing subsystem, a powder packaging subsystem and an automatic control system. In the invention, the powder bin adopts a pneumatic rotary stirring and air hammer vibration mode to carry out combined arch breaking, so that the uniform blending of powder is realized; and a PLC automatic control system is introduced, a variable-frequency spiral discharging mode and a mode of independent control of each bin are adopted to carry out automatic batching by a bucket type weighing scale, weighing is fast and accurate, automatic sequential feeding and/or timed continuous discharging are carried out, then a single-horizontal-shaft coulter type mechanical stirring and pneumatic stirring synergistic stirring mixing mode is adopted to carry out mixing in preset time, and a gas transmission pressurizing and heating device is arranged in the mixing machine, so that powder caking can be avoided. The preparation system meets the functions of static accurate metering, sequential rapid feeding and timed continuous discharging of various powdery materials, and realizes the functions of pressurization and heating of large-volume mixing equipment.
Description
Technical Field
The invention relates to the technical field of mine solid waste filling, in particular to a multi-material powdery additive preparation system and a preparation method.
Background
At present, the filling method mining technology is more and more widely applied to mining, filling slurry is conveyed to a goaf through gravity flow or a pipeline under certain pumping pressure during filling, and the filling pipeline is easy to block due to bleeding of the filling slurry. The main components of the general filling slurry are main filling materials (tailings, fly ash, waste stone, construction waste and the like), cement and water. To improve the fluidity of the fill slurry, it is often necessary to adjust the amount of cement and water added. However, the influence of the mixing amount of cement and water on the filling strength and the fluidity is mutually contradictory in the application process. Therefore, to satisfy both strength and fluidity requirements of the filler slurry, it is necessary to add suitable additives.
The additive is applied to the field of mine solid waste filling for a long time, has obvious benefits on reducing the production cost of mine enterprises, and has the main effect of promoting the uniform dispersion of gelling agent particles so as to improve the utilization rate of the gelling agent; the fluidity of the slurry with the same concentration is promoted, so that the concentration is improved, and the strength of the filling body after final setting is higher; the catalytic alkali excitation improves the gel strength.
Compared with liquid additives, the powdery additives have the advantages of safety, convenience, environmental protection and the like in transportation, and are paid more and more attention. The raw materials used for preparing the additive are various and need to be mixed uniformly for use.
At present, various different types of devices or equipment for uniformly mixing powdery multi-material exist in the market, but the devices or equipment have the following defects: 1) the existing device or equipment for mixing multiple materials has the defects of poor metering precision, incapability of automatically feeding or sequential blanking, and incapability of meeting the technical effects of static accurate metering, sequential rapid feeding and timed continuous blanking of various powdery materials. 2) The existing device or equipment for mixing multiple materials cannot realize pressurization and heating treatment of large-volume mixing equipment, has the defects of poor material mixing effect and easy caking, and cannot meet the effect of high-efficiency uniform mixing of multiple powdery materials.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a multi-material powdery additive preparation system and a preparation method, which have the functions of static accurate metering, sequential rapid feeding and timed continuous feeding and can perform pressurization and heating efficient mixing treatment.
In order to achieve the aim, the invention provides a multi-material powdery additive preparation system. The multi-material powder additive preparation system consists of a powder storage and metering subsystem, a powder mixing subsystem, a powder packaging subsystem and an automatic control system;
the powder storage and metering subsystem consists of a plurality of powder bins, a screw feeder hermetically connected with bin bottom discharge ports of the powder bins and a plurality of bucket type weighing scales; a feeding device for conveying the metered additive raw materials to the powder mixing subsystem is arranged below the bucket type metering scale;
the powder mixing subsystem is provided with a mixer and a semi-finished product bin which is communicated with a discharge port at the lower part of the mixer and is used for storing and conveying finished additive products; a single horizontal shaft stirring device and a pneumatic stirring device are arranged in the mixer;
the powder packaging subsystem consists of a weighing device, an automatic sealing machine for sealing the packaging bags loaded with the predetermined amount of finished additives and a belt conveying device for conveying the sealed packaging bags;
the automatic control system controls the powder storage and metering subsystem, the powder mixing subsystem and the powder packaging subsystem, and controls and adjusts the set operation parameters of the multi-material powder additive preparation system.
Preferably, the automatic control system is a PLC automatic control system; the PLC automatic control system is divided into a management level, a system control level and an equipment control level from top to bottom, so that three-level distributed control is formed, and the centralized management of production data, a batching process and formula management of the system is realized.
Preferably, the single-horizontal-shaft stirring device adopts a single-horizontal-shaft coulter type stirrer, the single-horizontal-shaft coulter type stirrer and the pneumatic stirring device are jointly used for stirring and mixing, and preset mixing time of different material additives is regulated and controlled through the automatic control system.
Preferably, under the action of the pneumatic stirring device, a plurality of additive raw materials are mixed in the mixer from two sides to the middle by means of pneumatic scattering.
Preferably, the mixer is also internally provided with a gas transmission pressurizing and heating device for avoiding powder caking.
Preferably, the mixer is also provided with a sampling small hole, and the mixing effect is monitored in real time through online sampling; and after the sampled finished product is qualified, automatically discharging the powdery additive finished product in the mixer into the semi-finished product bin.
Preferably, the screw feeder is provided with a variable frequency speed regulator, and the automatic control system regulates and controls the frequency of the variable frequency speed regulator to control the screw rotating speed so as to control the feeding flow rate of the screw feeder; the functions of dynamic metering and static metering of the bucket type metering scale are realized through high-speed and low-speed sectional feeding of the screw feeder; during the dynamic metering, the screw feeder runs at a high speed, so that the metering time of the bucket type metering scale is shortened; during the static metering, the screw feeder runs at a low speed to realize the static accurate metering function of the bucket type metering scale; the bucket type weighing scale realizes the automatic batching function by adopting the modes of over-weighing, under-weighing, supplementing and point-moving precise weighing; and after the hopper type weighing scale finishes metering, the additive raw materials are automatically conveyed to powder receiving equipment arranged at the upper part of the mixer through the feeding equipment, and then the hopper type weighing scale carries out metering in the next cycle.
Preferably, an air hammer vibrator and a pneumatic arch breaker are arranged on the side wall in the powder bin; the powder bin is also provided with a stainless steel inner wall for avoiding raw material corrosion.
Preferably, the automatic control system has a statistical analysis function, and can export and print the statistical data of the production data, the batching process and the formula management.
In order to realize the aim, the invention also provides a method for preparing the multi-material powdery additive by using the preparation system. The preparation method comprises the following steps:
s1, correspondingly adding a plurality of additive raw materials into a plurality of powder bins by adopting a hoisting feeding device, and automatically starting the air hammer vibrator and the pneumatic arch breaking device which are arranged on the inner side wall of the powder bins to perform combined arch breaking through regulation and control of the automatic control system; after arch breaking is finished, the automatic control system regulates and controls the frequency of the variable-frequency speed regulator to control the spiral rotating speed, so as to control the feeding flow rate of the spiral feeder, realize high-speed and low-speed segmented feeding of the spiral feeder, perform dynamic metering and static metering of the bucket type metering scale, and quickly and accurately finish metering of a preset metering value of an additive raw material; the bucket type weighing scale realizes the automatic batching function by adopting the modes of over-weighing, under-weighing, supplementing and point-moving precise weighing; after the hopper type weighing scale finishes metering, the additive raw materials are automatically transferred and conveyed to powder receiving equipment in the powder mixing subsystem through the feeding equipment, and then the hopper type weighing scale carries out the metering of the next cycle;
s2, automatically and quantitatively feeding the additive raw materials metered in the powder receiving equipment into the mixer in sequence through the automatic control system, starting the single-horizontal-shaft stirring device and the pneumatic stirring device to jointly stir and mix, and regulating and controlling the gas transmission pressurization and heating device to a preset pressure and a preset temperature so as to avoid powder caking; then, regulating and controlling the preset mixing time; then, online sampling is carried out through the sampling small holes, when the sampled finished product is not qualified, the operation process of repeatedly stirring and mixing is carried out for a preset time, and when the sampled finished product is qualified, the mixed powdery additive finished product in the mixer is automatically discharged into the semi-finished product bin through the regulation and control of the automatic control system;
s3, conveying the finished product of the powdery additive in the step S2 from the semi-finished product bin to the weighing device, and weighing and metering a preset weight value; after weighing is finished, the finished product of the powdery additive is automatically put into the packaging bag through the automatic control system, then the packaging bag is sealed by the automatic sealing machine, and then the sealed packaging bag is conveyed to a storage area through the belt conveying device to be stacked for later use, so that the preparation of the multi-material powdery additive is finished.
Compared with the prior art, the invention has the beneficial effects that:
1. the multi-material powdery additive preparation system provided by the invention has the advantages of static accurate metering, sequential rapid feeding and timed continuous feeding, and is mainly due to the following characteristics: in the powder storage and metering subsystem, an air hammer vibrator and an air hammer arch breaker are arranged on the side wall in the powder storage bin, and arch breaking is carried out in a combined mode of air-driven rotary stirring and air hammer vibration, so that uniform proportioning of the powder additive can be ensured. The powder bin is also internally provided with a 304 stainless steel inner wall for avoiding raw material corrosion. Meanwhile, a PLC automatic control system is introduced to regulate and control the frequency of a variable-frequency speed regulator on the screw feeder to control the spiral rotating speed, a variable-frequency spiral discharging mode is adopted to control the fall, a special metering module of a bucket type metering scale is combined, a mode of independent control of each bin is adopted, super-weighing, balance-off and balance-supplementing are realized, and the metering mode of inching a precision scale is used for accurately and quickly automatically batching, so that the weighing precision is ensured to be within 0.1%. And the materials to be mixed are automatically put into the mixer in sequence and quantity through a PLC automatic control system.
2. The multi-material powdery additive preparation system provided by the invention can realize pressurization and heating treatment on large-volume mixing equipment, and realize the effects of efficiently and uniformly mixing various powdery materials and avoiding powder agglomeration, and mainly because: in the powder mixing subsystem, the bucket capacity of the mixer adopted by the invention reaches 2m3The single-horizontal-shaft stirring device and the pneumatic stirring device are arranged in the mixer, the mixing processing within preset time is carried out by adopting a stirring and mixing mode combining single-horizontal-shaft coulter type mechanical stirring and pneumatic stirring, and the materials are mixed by pneumatic scattering from two sides to the middle in the mixer and simultaneously are subjected to single-horizontal-shaft coulter type mechanical stirring, so that the combined synergistic use of the two stirring and mixing modes can greatly improve the uniformity of powder mixing; meanwhile, the mixer is also internally provided with a gas transmission pressurizing and heating device, and when the combined stirring and mixing treatment is carried out, the gas transmission pressurizing and heating device is regulated to preset pressure and preset temperature, so that the powder can be efficiently and uniformly mixed, and the powder caking phenomenon is avoided.
3. According to the multi-material powdery additive preparation system provided by the invention, the mixer is also provided with the small sampling holes, so that the mixing effect can be monitored in real time through online sampling, the uniform stirring is ensured, and the finished product is qualified.
4. The preparation method of the multi-material powdery additive provided by the invention has the advantages of automatic integrated operation, low production cost and capability of effectively reducing the labor of a production line by adopting the preparation system provided by the invention. Through introducing PLC automated control system, can effectively avoid the error that artificial manual operation brought, realize the accurate measurement of the static state of multiple powdery material, throw material and regularly in proper order fast and unload in succession, it is better to mix the effect. The automatic control system can also provide a statistical analysis function and can derive and print related statistical data, such as the output of class and the output of workers; the actual weight of the ingredients, the raw material batch, the ingredient operators and the like at any time can be searched retrospectively, so that the whole preparation process is rigorous and reliable.
Drawings
FIG. 1 is a front view of a multi-material powdered additive manufacturing system provided by the present invention.
FIG. 2 is a side view of a multi-material powdered additive manufacturing system provided by the present invention.
FIG. 3 is a top view of a multi-material additive powder preparation system provided by the present invention.
Reference numerals:
100. a multi-material powdery additive preparation system;
10. a powder storage and metering subsystem; 11. a powder bin; 12. a stainless steel inner wall; 13. an air hammer vibrator; 14. a pneumatic arch breaker; 15. a screw feeder; 16. a variable frequency governor; 17. a bucket type weighing scale; 18. a feeding device;
20. a powder mixing subsystem; 21. a mixer; 22. a single horizontal shaft stirring device; 23. a pneumatic stirring device; 24. a semi-finished product bin; 25. a gas delivery pressurizing and heating device; 26. sampling a small hole;
30. a powder packaging subsystem; 31. a weighing device; 32. an automatic sealing machine; 33. a belt conveyor; 34. and (4) a finished product storage tank.
Detailed Description
The technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.
Referring to fig. 1 to 3, the present invention provides a multi-material powder additive manufacturing system. The multi-material powder additive preparation system 100 is composed of a powder storage and metering subsystem 10, a powder mixing subsystem 20, a powder packaging subsystem 30 and an automatic control system (not shown in fig. 1 and 2);
the powder storage and metering subsystem 10 consists of a plurality of powder bins 11, a screw feeder 15 and a plurality of bucket type weighing scales 17, wherein the screw feeder 15 is hermetically connected with bin bottom discharge ports of the powder bins 11; a feeding device 18 for conveying the metered additive raw materials to the powder mixing subsystem 20 is arranged below the bucket type metering scale 17;
the powder mixing subsystem 20 is provided with a mixer 21 and a semi-finished product bin 24 which is communicated with a discharge port at the lower part of the mixer 21 and is used for storing and conveying finished additive products; a single horizontal shaft stirring device 22 and a pneumatic stirring device 23 are arranged in the mixer 21;
the powder packaging subsystem 30 consists of a weighing device 31, an automatic sealing machine 32 for sealing the packaging bags loaded with the predetermined amount of finished additives and a belt conveying device 33 for conveying the sealed packaging bags;
the automatic control system controls the powder storage and metering subsystem 10, the powder mixing subsystem 20 and the powder packaging subsystem 30, and controls and adjusts the set operating parameters of the multi-material powder additive preparation system.
Furthermore, the automatic control system is a PLC automatic control system; the PLC automatic control system is divided into a management level, a system control level and an equipment control level from top to bottom, so that three-level distributed control is formed, and the centralized management of production data, a batching process and formula management of the system is realized.
Further, the single-horizontal-shaft stirring device 22 adopts a single-horizontal-shaft coulter type stirrer, the single-horizontal-shaft coulter type stirrer and the pneumatic stirring device 23 are jointly used for stirring and mixing, and preset mixing time of different material additives is regulated and controlled through the automatic control system.
Further, several of the additive raw materials are mixed by air-throwing from both sides to the middle in the mixer 21 by the air-stirring device 23.
Further, a gas transmission pressurizing and heating device 25 is arranged in the mixer 21 to avoid powder agglomeration.
Furthermore, a sampling small hole 26 is also arranged on the mixer 21, and the mixing effect is monitored in real time through online sampling; and after the sampled finished product is qualified, automatically discharging the powdery additive finished product in the mixer 21 into the semi-finished product bin 24.
Further, a variable-frequency speed regulator 16 is arranged on the screw feeder 15.
Further, an air hammer vibrator 13 and a pneumatic arch breaker 14 are arranged on the side wall in the powder bin 11; the powder bin 11 is also provided with a stainless steel inner wall 12 to avoid corrosion of the raw materials.
Further, the powder packaging subsystem 30 is also provided with a finished product storage tank 34.
The preparation system for adding multiple materials comprises the following steps:
s1, correspondingly adding a plurality of additive raw materials into a plurality of powder bins 11 by adopting a hoisting feeding device, and automatically starting the air hammer vibrators 13 and the pneumatic arch breaking devices 14 arranged on the inner side walls of the powder bins 11 to perform combined arch breaking through regulation and control of the automatic control system; after arch breaking is finished, the automatic control system regulates and controls the frequency of the variable-frequency speed regulator 16 to control the spiral rotating speed, so as to control the feeding flow rate of the spiral feeder 15, realize high-speed and low-speed segmented feeding of the spiral feeder 15, perform dynamic metering and static metering of the bucket type metering scale 17, and quickly and accurately complete metering of a preset metering value of an additive raw material; the bucket type weighing scale 17 realizes the automatic batching function by adopting the modes of over-weighing, under-weighing, supplementing and point-moving precise weighing; after the hopper type weighing scale 17 finishes metering, the additive raw materials are automatically transferred and conveyed to powder receiving equipment in the powder mixing subsystem 20 through the feeding equipment 18, and then the hopper type weighing scale 17 carries out metering in the next cycle;
s2, automatically and quantitatively feeding the additive raw materials metered in the powder receiving equipment into the mixer 21 in sequence through the automatic control system, starting the single-horizontal-shaft stirring device 22 and the pneumatic stirring device 23 to jointly stir and mix, and regulating the gas transmission pressurization and heating device 25 to a preset pressure and a preset temperature so as to avoid powder caking; then, regulating and controlling the preset mixing time; then, online sampling is carried out through the sampling small holes 26, when the sampled finished product is not qualified, the operation process of repeatedly stirring and mixing is carried out for a preset time, and when the sampled finished product is qualified, the mixed powdery additive finished product in the mixer 21 is automatically discharged into the semi-finished product bin 24 through the regulation and control of the automatic control system;
s3, conveying the finished powder additive product obtained in the step S2 from the semi-finished product bin 24 to the weighing device 21, and weighing and metering a preset weight value; after weighing, the finished product of the powdery additive is automatically put into the packaging bag through the automatic control system, then the packaging bag is sealed by the automatic sealing machine 32, and then the sealed packaging bag is conveyed to a storage area through the belt conveying device 33 to be stacked for later use, so that the preparation of the multi-material powdery additive is completed.
The present invention is described in further detail below with reference to specific examples.
Example 1
The preparation method of the multi-material powdery additive, which is prepared by adopting the preparation system provided by the invention, comprises the following steps:
s1, powder storage and metering: respectively and correspondingly adding 6 additive raw materials into 6 powder bins 11 by adopting ton bag hoisting and feeding equipment, then starting the air hammer vibrator 13 and the pneumatic arch breaking device 14 which are arranged on the inner side wall of the powder bin 11 through the regulation and control of a PLC automatic control system, and carrying out combined arch breaking by adopting a pneumatic rotary stirring and air hammer vibration mode; after arch breaking is finished, the PLC automatic control system regulates and controls the frequency of a variable-frequency speed regulator 16 on a screw feeder 15 to control the screw rotating speed, so as to control the feeding flow rate of the screw feeder 15, realize high-speed and low-speed sectional feeding of the screw feeder 15 and carry out dynamic metering and static metering of the bucket type metering scale 17; during dynamic metering, the screw feeder 15 runs at a high speed, and the metering time of the bucket type metering scale 17 is shortened; during static metering, the screw feeder 15 runs at a low speed to realize the static accurate metering function of the bucket type metering scale 17, so as to quickly and accurately complete the metering of the preset metering value of the additive raw material; the bucket type weighing scale 17 realizes the automatic batching function by adopting the modes of over-weighing, under-weighing, supplementing and point-moving precise weighing; after the hopper type weighing scale 17 finishes metering, the additive raw materials are automatically transferred and conveyed to powder receiving equipment in the powder mixing subsystem 20 through the feeding equipment 18, and then the hopper type weighing scale 17 carries out metering in the next cycle;
s2, powder mixing: the additive raw materials metered in the powder receiving equipment are automatically and sequentially and quantitatively fed into a hopper volume of 2m through the automatic control system3The single-horizontal-shaft stirring device 22 and the pneumatic stirring device 23 are started in the mixer 21, a mixing treatment is performed for a preset time by adopting a stirring and mixing mode combining single-horizontal-shaft coulter type mechanical stirring and pneumatic stirring, the materials are mixed from two sides to the middle in the mixer 21 by means of pneumatic scattering, simultaneously single-horizontal-shaft coulter type mechanical stirring is performed, and the gas transmission pressurization and heating device 25 is regulated to a preset pressure and a preset temperature so as to avoid powder caking; then, regulating and controlling the preset mixing time; then, online sampling is carried out through the sampling small holes 26, when the sampled finished product is not qualified, the operation process of repeatedly stirring and mixing is carried out for a preset time, and when the sampled finished product is qualified, the mixed powdery additive finished product in the mixer 21 is automatically discharged into the semi-finished product bin 24 through the regulation and control of the automatic control system;
s3, powder packaging: conveying the finished powdered additive product obtained in the step S2 from the semi-finished product bin 24 to the weighing device 21, and weighing and metering the weight value of 25 kg; after weighing, the finished product of the powdery additive is automatically put into the packaging bag through the automatic control system, then the packaging bag is sealed by the automatic sealing machine 32, and then the sealed packaging bag is conveyed to a storage area through the belt conveying device 33 to be stacked for later use, so that the preparation of the multi-material powdery additive is completed.
It should be noted that, as will be understood by those skilled in the art, the additive raw materials of the material may be 2, 3, 4, 5 or several other types according to the needs of practical application, the loading weight of the packaging bag is not limited to 25kg, and may be other preset weights, and the automatic control system is used to preset and regulate the operation parameters, so as to perform automatic metering, automatic feeding and automatic mixing timing on different additive raw materials, so as to achieve the effect of highly mixing the powder.
In summary, the invention provides a system and a method for preparing a multi-material powdery additive. The system consists of a powder storage and metering subsystem, a powder mixing subsystem, a powder packaging subsystem and an automatic control system. In the invention, the powder bin adopts a pneumatic rotary stirring and air hammer vibration mode to carry out combined arch breaking, so that the uniform blending of powder is realized; and a PLC automatic control system is introduced, a variable-frequency spiral discharging mode and a mode of independent control of each bin are adopted to carry out automatic batching by a bucket type weighing scale, weighing is fast and accurate, automatic sequential feeding and/or timed continuous discharging are carried out, then a single-horizontal-shaft coulter type mechanical stirring and pneumatic stirring synergistic stirring mixing mode is adopted to carry out mixing in preset time, and a gas transmission pressurizing and heating device is arranged in the mixing machine, so that powder caking can be avoided. The preparation system meets the functions of static accurate metering, sequential rapid feeding and timed continuous discharging of various powdery materials, and realizes the functions of pressurization and heating of large-volume mixing equipment.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.
Claims (10)
1. A many materials powdery additive preparation system which characterized in that: the multi-material powder additive preparation system (100) consists of a powder storage and metering subsystem (10), a powder mixing subsystem (20), a powder packaging subsystem (30) and an automatic control system;
the powder storage and metering subsystem (10) consists of a plurality of powder bins (11), a screw feeder (15) and a plurality of bucket type weighing scales (17), wherein the screw feeder is hermetically connected with bin bottom discharge ports of the powder bins (11); a feeding device (18) for conveying the metered additive raw materials to the powder mixing subsystem (20) is arranged below the bucket type weighing scale (17);
the powder mixing subsystem (20) is provided with a mixer (21) and a semi-finished product bin (24) which is communicated with a discharge hole at the lower part of the mixer (21) and is used for storing and conveying finished additive products; a single horizontal shaft stirring device (22) and a pneumatic stirring device (23) are arranged in the mixer (21);
the powder packaging subsystem (30) consists of a weighing device (31), an automatic sealing machine (32) for sealing the packaging bags loaded with the predetermined amount of finished additives and a belt conveying device (33) for conveying the sealed packaging bags;
the automatic control system controls the powder storage and metering subsystem (10), the powder mixing subsystem (20) and the powder packaging subsystem (30), and controls and adjusts the set operation parameters of the multi-material powder additive preparation system.
2. The multi-material powdered additive manufacturing system according to claim 1, characterized in that: the automatic control system is a PLC automatic control system; the PLC automatic control system is divided into a management level, a system control level and an equipment control level from top to bottom, so that three-level distributed control is formed, and the centralized management of production data, a batching process and formula management of the system is realized.
3. The multi-material powdered additive manufacturing system according to claim 1, characterized in that: the single-horizontal-shaft stirring device (22) adopts a single-horizontal-shaft coulter type stirrer, the single-horizontal-shaft coulter type stirrer and the pneumatic stirring device (23) are jointly stirred and mixed, and preset mixing time of different material additives is regulated and controlled through the automatic control system.
4. A multi-material powdery additive preparation system according to claim 3, characterized in that: under the action of the pneumatic stirring device (23), a plurality of additive raw materials are mixed in the mixer (21) from two sides to the middle by means of pneumatic scattering.
5. A multi-material powdery additive preparation system according to claim 3, characterized in that: the mixer (21) is also internally provided with a gas transmission pressurizing and heating device (25) for avoiding powder caking.
6. The multi-material powdered additive manufacturing system according to claim 5, characterized in that: the mixer (21) is also provided with a sampling small hole (26), and the mixing effect is monitored in real time through online sampling; and after the sampled finished product is qualified, automatically discharging the powdery additive finished product in the mixer (21) into the semi-finished product bin (24).
7. The multi-material powdered additive manufacturing system according to claim 2, characterized in that: a variable-frequency speed regulator (16) is arranged on the screw feeder (15), and the automatic control system regulates and controls the frequency of the variable-frequency speed regulator (16) to control the spiral rotating speed so as to control the feeding flow rate of the screw feeder (15); the functions of dynamic metering and static metering of the bucket type metering scale (17) are realized through high-speed and low-speed sectional feeding of the screw feeder (15); during the dynamic metering, the screw feeder (15) runs at a high speed, and the metering time of the bucket type metering scale (17) is shortened; during static metering, the screw feeder (15) runs at a low speed to realize the static accurate metering function of the bucket type metering scale (17); the bucket type metering scale (17) realizes the automatic batching function by adopting the modes of over-weighing, under-weighing, supplementing and point-moving precise weighing; after the bucket type weighing scale (17) finishes metering, the additive raw materials are automatically conveyed to powder receiving equipment arranged at the upper part of the mixer (21) through the feeding equipment (18), and then the bucket type weighing scale (17) carries out metering in the next cycle.
8. The multi-material powdered additive manufacturing system according to claim 1, characterized in that: an air hammer vibrator (13) and a pneumatic arch breaker (14) are arranged on the side wall in the powder bin (11); the powder bin (11) is also provided with a stainless steel inner wall (12) for avoiding corrosion of raw materials.
9. The multi-material powdered additive manufacturing system according to claim 2, characterized in that: the automatic control system has a statistical analysis function and can export and print the production data, the batching process and the statistical data of formula management.
10. A preparation method of a multi-material powdery additive is characterized by comprising the following steps: the multi-material powdery additive is prepared by using the multi-material powdery additive preparation system of any one of claims 1 to 9, comprising the steps of:
s1, a plurality of additive raw materials are correspondingly added into a plurality of powder bins (11) by adopting a hoisting feeding device, and then the pneumatic hammer vibrators (13) and the pneumatic arch breaking devices (14) arranged on the inner side walls of the powder bins (11) are automatically started to carry out combined arch breaking through regulation and control of the automatic control system; after arch breaking is finished, the automatic control system regulates and controls the frequency of the variable-frequency speed regulator (16) to control the spiral rotating speed, so as to control the feeding flow rate of the spiral feeder (15), realize high-speed and low-speed segmented feeding of the spiral feeder (15), perform dynamic metering and static metering of the bucket type metering scale (17), and quickly and accurately finish metering of a preset metering value of an additive raw material; the bucket type metering scale (17) realizes the automatic batching function by adopting the modes of over-weighing, under-weighing, supplementing and point-moving precise weighing; after the hopper type metering scale (17) finishes metering, the additive raw materials are automatically transferred and conveyed to powder receiving equipment in the powder mixing subsystem (20) through the feeding equipment (18), and then the hopper type metering scale (17) carries out metering in the next cycle;
s2, automatically and quantitatively feeding the additive raw materials metered in the powder receiving equipment into the mixer (21) in sequence through the automatic control system, starting the single-horizontal-shaft stirring device (22) and the pneumatic stirring device (23) to jointly stir and mix, and regulating the gas transmission pressurization and heating device (25) to a preset pressure and a preset temperature so as to avoid powder caking; then, regulating and controlling the preset mixing time; then, online sampling is carried out through the sampling small holes (26), when the sampled finished product is not qualified, the operation process of repeatedly stirring and mixing is carried out for a preset time, and when the sampled finished product is qualified, the mixed powdery additive finished product in the mixer (21) is automatically discharged into the semi-finished product bin (24) through the regulation and control of the automatic control system;
s3, conveying the finished powder additive product obtained in the step S2 from the semi-finished product bin (24) to the weighing device (21) for weighing and metering a preset weight value; after weighing is finished, the finished product of the powdery additive is automatically put into the packaging bag through the automatic control system, then the packaging bag is sealed by the automatic sealing machine (32), and then the sealed packaging bag is conveyed to a storage area through the belt conveying device (33) to be stacked for later use, so that the preparation of the multi-material powdery additive is completed.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520080A (en) * | 2020-12-18 | 2021-03-19 | 无锡中营康园自动化设备有限公司 | Full-automatic powder material multi-group square feeding mixing processing system |
| CN112915829A (en) * | 2021-02-18 | 2021-06-08 | 西南石油大学 | Automatic device for preparing drilling fluid |
| CN113666609A (en) * | 2021-09-01 | 2021-11-19 | 内蒙古嗨泥环保科技有限公司 | Sludge dewatering treatment system and sludge treatment method |
| WO2023138255A1 (en) * | 2022-01-20 | 2023-07-27 | 广东邦普循环科技有限公司 | Lithium salt metering and batching system, and batching method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19728624C2 (en) * | 1996-07-04 | 2001-08-09 | Pfister Systemtechnik Gmbh | Dosing device for powdery products, in particular batch weighing system for additives |
| CN202705258U (en) * | 2012-07-24 | 2013-01-30 | 江苏中科友特机器人科技有限公司 | Automatic fertilizer production line system |
| CN103127872A (en) * | 2013-02-05 | 2013-06-05 | 江苏协诚科技发展有限公司 | Automatic dosing system and production process |
| CN104999565A (en) * | 2015-08-07 | 2015-10-28 | 江苏沃尔夫机械有限公司 | High-accuracy intelligent electric control system of dry mix mortar production line |
| CN205007944U (en) * | 2015-09-25 | 2016-02-03 | 南通凯英薄膜技术有限公司 | A automatic material conveying equipment for preparing polyimide resin |
| CN110053887A (en) * | 2019-05-07 | 2019-07-26 | 上海三融环保工程有限公司 | A kind of cement plant powder denitrfying agent conveying device and its application method |
-
2020
- 2020-07-27 CN CN202010730040.7A patent/CN111686621A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19728624C2 (en) * | 1996-07-04 | 2001-08-09 | Pfister Systemtechnik Gmbh | Dosing device for powdery products, in particular batch weighing system for additives |
| CN202705258U (en) * | 2012-07-24 | 2013-01-30 | 江苏中科友特机器人科技有限公司 | Automatic fertilizer production line system |
| CN103127872A (en) * | 2013-02-05 | 2013-06-05 | 江苏协诚科技发展有限公司 | Automatic dosing system and production process |
| CN104999565A (en) * | 2015-08-07 | 2015-10-28 | 江苏沃尔夫机械有限公司 | High-accuracy intelligent electric control system of dry mix mortar production line |
| CN205007944U (en) * | 2015-09-25 | 2016-02-03 | 南通凯英薄膜技术有限公司 | A automatic material conveying equipment for preparing polyimide resin |
| CN110053887A (en) * | 2019-05-07 | 2019-07-26 | 上海三融环保工程有限公司 | A kind of cement plant powder denitrfying agent conveying device and its application method |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520080A (en) * | 2020-12-18 | 2021-03-19 | 无锡中营康园自动化设备有限公司 | Full-automatic powder material multi-group square feeding mixing processing system |
| CN112915829A (en) * | 2021-02-18 | 2021-06-08 | 西南石油大学 | Automatic device for preparing drilling fluid |
| CN113666609A (en) * | 2021-09-01 | 2021-11-19 | 内蒙古嗨泥环保科技有限公司 | Sludge dewatering treatment system and sludge treatment method |
| CN113666609B (en) * | 2021-09-01 | 2022-06-10 | 内蒙古嗨泥环保科技有限公司 | Sludge dewatering treatment system and sludge treatment method |
| WO2023138255A1 (en) * | 2022-01-20 | 2023-07-27 | 广东邦普循环科技有限公司 | Lithium salt metering and batching system, and batching method |
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