CN212099535U - Graded packaging system is broken up to peanut shell superfine powder - Google Patents
Graded packaging system is broken up to peanut shell superfine powder Download PDFInfo
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- CN212099535U CN212099535U CN202020538825.XU CN202020538825U CN212099535U CN 212099535 U CN212099535 U CN 212099535U CN 202020538825 U CN202020538825 U CN 202020538825U CN 212099535 U CN212099535 U CN 212099535U
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Abstract
The utility model provides a grading and packaging system for loosening peanut shell superfine powder, which comprises a loosening device, a grading device and a packaging device, belongs to the technical field of peanut processing, and comprises the loosening device, the grading device and the packaging device which are sequentially connected, wherein the peanut shell superfine powder is loosened by the loosening device and then output to the grading device, and the grading device grades the loosened peanut shell superfine powder and then outputs to the packaging device for packaging; the scattering device comprises a double-end spiral scattering feeding device, the double-end spiral scattering feeding device comprises a spiral feeding cavity and a double-end spiral rod arranged in the spiral feeding cavity, double-end spiral blades are fixed on the double-end spiral rod, and the superfine powder is scattered through the shearing action of the double-end spiral blades and then is fed to a discharge hole of the double-end spiral scattering feeding device; the utility model discloses a shearing action of double-end helical blade and the high-speed impact of dry air current are fully broken up the peanut shell superfine powder, have avoided the superfine powder to reunite and the influence of caking.
Description
Technical Field
The utility model relates to a peanut processing technology field, in particular to hierarchical packaging system is broken up to peanut shell superfine powder.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The physicochemical characteristics of the peanut shells after the superfine grinding are changed, the coarse powder with the particle size of 100-.
With the increasing of peanut yield and market demand, the deep processing of peanuts also becomes an increasingly prominent problem in scientific research and production. As the specific surface area of the ultrafine powder particles is large and the specific surface energy is high, spontaneous coagulation and agglomeration phenomena are easily generated in the preparation and processing processes, agglomerated fine particles are often represented by coarse particle properties and cannot achieve excellent grading effect, so that the superiority of the ultrafine powder cannot be fully exerted, and the performance of a new material is deteriorated.
There have been researchers who have designed a jet fractionation apparatus comprising: the grading machine comprises a shell, two blocky objects and six grading adjustment cutting edges, the feeding device comprises a vibration device, an elastic part, a feeding pipe and a feeding hopper, the guiding device comprises a coarse powder guide pipe, a fine powder guide pipe, a middle powder guide pipe, a superfine powder guide pipe, a submicron powder guide pipe and a micropowder guide pipe, and the collecting device comprises an air compressor, a main airflow pipeline, six branch airflow pipelines, six speed adjusting valves and six dust collectors. The method solves the problems of difficult purification and classification of the jet flow of the impurity-containing superfine powder and difficult control of the classification granularity, and has the technical effects of less residue of raw materials in a feed barrel, higher feeding efficiency and higher jet flow classification efficiency.
The inventor of the utility model finds that the existing grading device does not solve the problem of agglomeration of the superfine powder, the speed of the main air flow and the branch air flow is not easy to control, and the whole device is horizontally placed, so that the grading precision of the superfine powder is influenced by self gravity, and the economic benefit is reduced.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a hierarchical packaging system is broken up to peanut shell superfine powder, the shearing action through double-end helical blade and the high-speed impact of drying air current are fully broken up to the peanut shell superfine powder, have avoided the influence that the superfine powder reunited and agglomerated.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a grading and packaging system for loosening peanut shell superfine powder comprises a loosening device, a grading device and a packaging device which are sequentially connected, wherein the peanut shell superfine powder is loosened by the loosening device and then output to the grading device, and the grading device grades the loosened peanut shell superfine powder and then outputs to the packaging device for packaging;
break up the device and break up material feeding unit including the double-end spiral, material feeding unit is broken up to the double-end spiral includes spiral pay-off cavity and sets up the double-end hob in spiral pay-off cavity, be fixed with double-end helical blade on the double-end hob, send the discharge gate that material feeding unit was broken up to the double-end spiral after breaking up the submicron powder through double-end helical blade shearing action.
As some possible realization modes, the double-end spiral scattering and feeding device comprises a buffer hopper, the buffer hopper is used for receiving the peanut shell superfine powder to enter a spiral feeding cavity, and the buffer hopper comprises four plates with different inclination angles, wherein the plates are sequentially connected end to end.
As some possible implementation manners, a storage hopper is fixed at the upper end of the buffer hopper, and the buffer hopper is welded on the upper side of the spiral feeding cavity.
As some possible implementation manners, the scattering device further comprises an airflow scattering and feeding device, and the airflow scattering and feeding device is connected with the double-head spiral scattering and feeding device through a venturi tube type tee joint;
the Venturi tube type tee joint comprises a contraction tube, a throat tube and a diffusion tube, the contraction tube impacts the double-head spiral scattering ultramicro powder received by the Venturi tube type tee joint after flowing through the throat tube and the ultramicro powder is scattered by the feeding device, and the scattered powder is output to an air inlet and an air outlet of the grading device through the diffusion tube.
As a further limitation, the airflow scattering and feeding device comprises an air compressor, an air storage tank and an air dryer which are sequentially connected, wherein the output end of the air dryer is connected with the input end of the shrinkage pipe.
As further injecture, be fixed with ejection of compact funnel on the three-way middle port of venturi tube formula, the choke setting is between the inlet port and the middle port of shrink tube, ejection of compact funnel is relative with double-end spiral break up material feeding unit's discharge gate for accept double-end spiral break up the superfine powder of material feeding unit's discharge gate output.
As some possible implementations, the gap between the double-ended helical screw and the helical feeding cavity is set to be 4 mm.
As some possible implementations, the double-ended screw rod is a double-ended screw rod of equal diameter and equal pitch.
As some possible implementations, the double-ended helical blade is helically curved.
As some possible realization modes, the grading device comprises a grading cavity, the grading cavity comprises a cylindrical part and a conical part arranged on the lower side of the cylindrical part, an air inlet and an air inlet are symmetrically and tangentially arranged in the middle of the cylindrical part, a cylindrical screen grading cavity coaxial with the cylindrical part is arranged in the cylindrical part, and a grading impeller coaxial with the cylindrical part is arranged in the screen grading cavity;
the broken superfine powder is classified for the first time through rotating airflow formed by an air inlet feeding hole and an air inlet, the superfine powder with the grain diameter larger than the aperture of a screen mesh is classified for the second time by the screen mesh matched with the rotating airflow, and the superfine powder is classified for the third time by a classifying impeller matched with high-speed rotating airflow;
the screen mesh grading cavity is fixed on the inner side wall of the cylindrical part through a plurality of uniformly distributed screen mesh support frames.
As some possible implementation manners, the packaging device comprises a feeding funnel and a weighing funnel, the classified superfine powder output by the classification device enters the weighing funnel through the feeding funnel, the weighing funnel is arranged on the supporting plate, and a plurality of uniformly distributed supporting rods provided with gravity sensors are arranged at the bottom of the weighing funnel and used for measuring the weight of the superfine powder;
as a further limitation, the bottom of the weighing funnel is connected with a blanking pipeline, and two sides of the blanking pipeline are connected with a clamping machine arm through bolts and used for fixing a packaging bag;
the vibration compacting mechanism comprises a vibration platform, a vibration platform bracket and springs, and four corners and the center of the vibration platform are connected with the vibration platform bracket through the springs; patting closely knit mechanism including patting the disc, patting a push rod of disc center fixed connection and pierce through in rear side frame, promote to pat the disc through the push rod and pat the wrapping bag.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model provides a hierarchical packaging system is broken up to peanut shell superfine powder breaks up material feeding unit through the design, and double-end helical blade's shearing action and dry airflow's high-speed impact fully breaks up the peanut shell superfine powder, can solve the phenomenon that peanut shell superfine powder caking, reunion before hierarchical, fully breaks up, improves hierarchical precision.
2. The utility model provides a hierarchical packaging system is broken up to peanut shell submicron powder, the buffer hopper includes the different plates of end to end connection in proper order of four inclination for the speed differentiation of four directions that fall down of buffer hopper is followed to the peanut shell submicron powder, and then avoids the knot to encircle.
3. The utility model provides a hierarchical packaging system is broken up to peanut shell submicron powder, venturi formula tee bend includes shrink tube, choke and diffusion tube, and the air current flows through venturi formula tee bend choke department, and the air current sharply accelerates, and peanut shell submicron powder produces the absorptive suction effect of negative pressure and gets into venturi formula tee bend at self gravity and choke simultaneously, and high velocity air produces strong impact to the miropowder, and the reunion is broken, breaks up completely, very big improvement break up efficiency.
4. The utility model provides a hierarchical packaging system is broken up to peanut shell superfine powder, material feeding unit is broken up to the air current is including the air compressor, gas holder and the air dryer that connect gradually, the output of air dryer is connected with the input of shrink tube, and the air current that introduces from air compressor passes through gas holder, air dryer in proper order, and its effect is abundant dry air, has subtracted the external factor that the peanut shell superfine powder reunited.
5. The utility model provides a hierarchical packaging system is broken up to peanut shell submicron powder, double-end helical blade are the helical surface form, receive the drive and when rotating when the pivot, the material can not rotate together with helical blade, receives the effect of normal thrust and the axial component force that helical blade applyed for the material only can be along with the silo motion of axial direction.
6. The utility model provides a hierarchical packaging system and method are broken up to peanut shell superfine powder, by a plurality of system integrations, degree of automation is high, can be arranged in large batch production operation, shortens working time and practices thrift the labour, reduces the processing cost, better solution superfine powder hierarchical granularity control difficult, hierarchical precision low and packaging efficiency low, closely knit poor problem of effect.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without unduly limiting the scope of the invention.
Fig. 1 is an axial view of a peanut shell ultra-fine powder scattering and grading packaging system provided in embodiment 1 of the present invention.
Fig. 2 is an axial view of the scattering and feeding device provided in embodiment 1 of the present invention.
Fig. 3 is an exploded view of the double-ended spiral scattering feeding device provided in embodiment 1 of the present invention.
Fig. 4 is a cross-sectional view of the double-ended spiral scattering feeding device provided in embodiment 1 of the present invention.
Fig. 5 is a force analysis diagram of the double-head spiral scattering feeding device provided in embodiment 1 of the present invention.
Fig. 6 is a diagram of analyzing the movement of the feeding device with double-head screw scattering provided by embodiment 1 of the present invention.
Fig. 7 is a cross-sectional view of the venturi type tee joint provided in embodiment 1 of the present invention.
Fig. 8 is an axial view of the cyclone sieve plate classifier provided in embodiment 2 of the present invention.
Fig. 9 is a partial sectional view of a cyclone screen plate classifier according to embodiment 2 of the present invention.
Fig. 10 is a top view of the internal structure of the cavity of the cyclone sieve plate classifier according to embodiment 2 of the present invention.
Fig. 11 is an exploded view of a cyclone sieve plate classifier provided in embodiment 2 of the present invention.
Fig. 12 is a side view of the classifying impeller provided in embodiment 2 of the present invention.
Fig. 13 is an isometric view of a quantitative dense packing device provided in embodiment 3 of the present invention.
Fig. 14 is a side view of a weighing mechanism provided in embodiment 3 of the present invention.
In the figure, a scattering feeding device I, a cyclone sieve plate grading device II and a quantitative dense packaging device III are arranged;
i-01-double-head spiral scattering feeding device, I-02-high-speed airflow scattering feeding device, I-03-spiral feeding cavity support, II-01-air inlet, II-02-air inlet, II-03-cylindrical part, II-04-conical part, II-05-cylindrical part top plate, II-06-screen grading device, II-07-grading impeller grading device, II-08-medium powder grading chamber, II-09-medium powder discharging pipe, II-10-coarse powder discharging pipe, II-11-fine powder discharging pipe, II-12-medium powder outlet butterfly valve and II-13-screen grading chamber;
III-01-a feeding funnel, III-02-a butterfly valve of the feeding funnel, III-03-a weighing mechanism, III-04-a packaging and blanking pipeline, III-05-a clamping machine arm, III-06-a bolt, III-07-a clamping ring, III-08-a vibration compacting mechanism, III-09-a beating compacting mechanism, III-10-a conveyor belt, III-11-a transportation rack, III-12-a display screen, III-13-a control cabinet and III-14-a button;
i-0101-storage silo, I-0102-buffer hopper, I-0103-spiral feeding cavity, I-0104-double-head spiral screw, I-0105-spiral blade, I-0106-discharge port, I-0107-spiral feeding motor, I-0108-discharge funnel, I-0201-air compressor, I-0202-air storage tank, I-0203-air dryer, I-0204-Venturi tube type tee, I-0205-shrinkage pipe, I-0206-throat pipe and I-0207-diffusion pipe;
II-0101-air inlet throat, II-0201-air inlet throat, II-0601-screen, II-0602-bottom plate, II-0603-screen support frame, II-0604-screen grading cavity, II-0701-grading impeller, II-0702-grading impeller blade, II-0703-grading impeller upper support, II-0704-grading impeller lower support, II-0705-speed reducing motor, II-0706-synchronous belt, II-0707-small synchronous wheel, II-0708-large synchronous wheel and II-0709-rotating shaft;
III-0301-weighing hopper, III-0302-weighing hopper butterfly valve, III-0303-gravity sensor, III-0304-supporting plate, III-0305-supporting bar, III-0306-weighing mechanism cabinet door, III-0801-vibration platform, III-0802-vibration platform support, III-0803-spring, III-0901-beating disk and III-0902-push rod.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.
In the case of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other.
As introduced in the background art, the inventor finds that the grading and packaging effect of the existing superfine powder grading and packaging device is not ideal, the defects of low grading precision and inaccurate quantification exist generally, and in order to solve the technical problems, the disclosure provides a peanut shell superfine powder scattering and grading and packaging system.
The utility model discloses a peanut shell superfine powder scattering and grading packaging system, which comprises a scattering and feeding device, a cyclone sieve plate grading device and a quantitative compact packaging device, wherein the scattering and feeding device is arranged at the left side of the cyclone sieve plate grading device, and the quantitative compact packaging device is arranged below the cyclone sieve plate grading device;
break up the device and break up material feeding unit including the double-end spiral, material feeding unit is broken up to the double-end spiral includes spiral pay-off cavity and sets up the double-end hob in spiral pay-off cavity, be fixed with double-end helical blade on the double-end hob, send the discharge gate that material feeding unit was broken up to the double-end spiral after breaking up the submicron powder through double-end helical blade shearing action.
Example 1
The invention is further explained below with reference to the figures and examples;
referring to fig. 1, which is an isometric view of the system of this embodiment, it can be seen that the present invention generally comprises three major parts, namely, a bulk feeder i, a cyclone screen plate classifier ii, and a quantitative bulk packaging unit iii.
Referring to the attached drawing 2, the scattering and feeding device I comprises a double-head spiral scattering and feeding device I-01 and a high-speed airflow scattering and feeding device I-02, wherein a discharge port I-0106 of the double-head spiral scattering and feeding device I-01 is connected with the high-speed airflow scattering and feeding device I-02 through a Venturi tube type tee joint I-0207.
Double-end spiral scattering and feeding device includes storage silo I-0101, and storage silo I-0101 below sets up buffer funnel I-0102, and buffer funnel I-0102 welds in spiral pay-off cavity I-0103 top, and buffer funnel I-0102's four walls gradient diverse, and its effect is the speed differentiation that makes the peanut shell ultramicro powder from four directions that fall down of buffer funnel, and then avoids the knot to encircle.
The constant-diameter and constant-pitch double-head spiral screw is arranged in the spiral feeding cavity, the gap between the double-head spiral screw and the spiral feeding cavity is set to be 4mm, the double-head spiral screw I-0104 is driven by the spiral feeding motor I-0107, and the powder material is fully scattered and conveyed to the discharge hole under the shearing action of the double-head spiral blade I-0105; the air flow introduced from the air compressor I-0201 sequentially passes through the air storage tank I-0202 and the air dryer I-0203, and the air dryer is used for fully drying air, so that external factors of peanut shell superfine powder agglomeration are reduced.
Airflow flows through the throat I-0206 of the Venturi tube type tee I-0204, the airflow is accelerated rapidly, meanwhile, the peanut shell superfine powder enters the Venturi tube type tee I-0204 under the suction effect of negative pressure adsorption generated by the gravity of the peanut shell superfine powder and the throat I-0206, high-speed airflow generates a strong impact effect on the peanut shell superfine powder, and the peanut shell superfine powder is agglomerated and broken up completely.
Referring to the attached drawings 3-6, a double-end spiral screw I-0104 with equal diameter and equal spiral is connected in the spiral feeding cavity, and the following detailed description is given to the components of the double-end spiral scattering and feeding device I-02:
the shape of the double-end helical blade I-0105 is a helical curved surface, when the rotating shaft is driven to rotate, the helical blade exerts normal thrust F on the peanut shell superfine powder at any radius r1The thrust and the friction force F between the material and the blades2Synthesized as a force F, which is resolved with a radial component F3The material is pushed to move forwards (move transversely), and the other component F of the resultant force4Is vertically downwards, this force component urges the material away from the blade, due to F3And F4Under the combined action of the spiral blades, the materials can not rotate together with the spiral blades and only do axial movement along with the trough under the action of normal thrust and axial component force exerted by the spiral blades.
According to the force-motion analysis chart, the following results can be obtained:
Vhcosβ＝V0sinα，
and:
therefore, the method comprises the following steps:
peripheral velocity V of the particlesz：
Because:
order:
f＝tanβ
then it follows: peripheral speed:
axial speed:
in the formula, the pitch of the S-screw is mm; n-the rotation speed of the spiral shaft, r/min;
r is the distance between the powder particles M and the axis of the screw rod, and is mm; alpha-helix lead angle;
f is the friction coefficient of the particles and the helical surface; vh-the speed of engagement;
V0-the speed of the involving movement of the submicron particles;
selecting the rotating speed of the screw:
the rotating speed of the screw can influence the amount of heat generated and the temperature of materials, and the rotating speed of the screw is high, so that the shearing force is large, and the temperature of the rising materials is high; the screw speed is slow and the shear force is small, resulting in a low elevated material temperature. However, the faster the screw speed, the better the mixing action, the faster the screw speed, the higher the shearing force and the higher the mixing force, but the shorter the mixing time, the better the mixing effect of the polymer material is not necessarily achieved.
The screw speed is determined by the following derivation:
in the formula: theta-the pitch angle of the helical blade;
γ0-the angle between the absolute speed of movement of the submicron particles and the horizontal line;
g-gravitational acceleration; f. of1-the coefficient of friction between the particles and the shell;
R1-average radius of the particles from the axial center;
the number of the thread heads is selected as follows:
the number of thread starts is generally divided into single start threads, double start threads and triple start threads. The single-head thread element has thick screw edge and small leakage gap; the double-thread element has a low shearing effect and is mainly used for conveying powder; the three-head screw element has higher shearing action and shallow screw groove and is mainly used for melting materials. Under the condition of the same thread pitch, the double-thread lead is twice of the single-thread lead, and the thread with the large lead has small axial stress of the micro-powder particles and relatively reduced heat generation. Considering that the heat resistance of the peanut shell superfine powder is poor, if the temperature rises too much in the feeding process, the peanut shell superfine powder is denatured, and the original value of the peanut shell superfine powder is lost, so that the double-thread screw is selected. On the premise of conveying materials and scattering agglomerated peanuts and superfine powder, the temperature inside the spiral feeding cavity is ensured to be stabilized within a proper range.
Referring to the attached figure 7, the Venturi tube type tee I-0204 comprises a long tube formed by a contraction tube I-0205, a throat tube I-0206 and a diffusion tube I-0207 and a discharge funnel I-0108, and the Venturi tube type tee is explained in detail as follows:
after the air is fed into the contraction pipe by means of air dryer, the air is accelerated gradually, and forced to pass through the throat at high speed, and the air speed is reduced by means of diffusion pipe, so that according to Bernoulli's equation and continuous equation, negative pressure is produced at the throat, and the superfine powder can be sucked into the Venturi tube type tee joint from discharge hopper and mixed with high-speed air flow.
When the fluid passage area is suddenly narrowed at the constriction tube, the flow rate is increased, so that the particle concentration is increased; and when the fluid passage area is abruptly widened at the diffuser pipe, the flow rate is reduced, so that the particle concentration is reduced. Therefore, the probability of mutual collision of the particles is increased, the particles are promoted to be dispersed and the agglomerated particles are decomposed, and the agglomerated particles entering the cyclone sieve plate grading device are almost not existed.
The operating principle of a venturi can be expressed in terms of bernoulli's equation and continuity equation. For this purpose, the two section line equations of the shrinkage pipe and the throat pipe can be solved according to an energy equation and a continuity equation.
Taking the tube axis as a reference, firstly neglecting the resistance, and obtaining the following equation:
Q′＝A1V1＝A2V2
namely, it is
Is obtained by the above two formulas
Thus:
in the formula, the delta h is the water head difference of the two section pressure measuring pipes; k is the venturi meter constant, constant for a given pipe diameter.
Due to the resistance, the actual flow Q is always less than Q'. A dimensionless coefficient μ is introduced as Q/Q' (μ is referred to as a flow rate coefficient), and the calculated flow rate value is corrected.
Therefore, the first and second electrodes are formed on the substrate,
wherein mu is 0.98-0.99.
The operating principle of the scattering device described in this embodiment specifically is: the superfine peanut shell powder falls from the storage bin to the buffer hopper, the falling speed of the powder is differentiated due to different gradients of four walls of the buffer hopper so as to avoid arching, and after the superfine peanut shell powder reaches the spiral feeding cavity, the shearing action of the double-head spiral blade fully breaks up the powder material and sends the powder material to the discharge hole;
airflow introduced from a compressor is fully dried by an air dryer, external factors of powder material agglomeration are reduced, the airflow flows through a throat of a Venturi tube type three-way, the airflow is rapidly accelerated, meanwhile, the superfine peanut shell powder enters the Venturi tube type three-way under the suction action of negative pressure adsorption generated by the gravity of the superfine peanut shell powder and the throat, the high-speed airflow generates a strong impact action on the superfine peanut shell powder, the agglomeration is broken, and the superfine peanut shell powder is completely scattered.
Example 2:
the embodiment 2 of the disclosure provides a peanut shell superfine powder scattering and grading packaging system, which comprises the scattering device provided in the embodiment 1, and the details are not repeated here.
The grading device is structured as follows:
referring to fig. 8-12: the air inlet and outlet II-01 and the air inlet II-02 are symmetrically and tangentially arranged in the middle of the cylindrical part of the cavity, have the same structure, are both provided with 20-degree necking angles, and have square cross sections, which are explained in detail as follows:
an air inlet of the traditional cyclone classifier is positioned at the top, the axial speed of a side wall area is a negative value, and airflow flows downwards; except that the axial speed in the small central area is a negative value, the axial speed in most areas inside the classifier is a positive value, which indicates that the airflow basically rotates and rises, and the maximum speed value of the airflow rising is 0.4-0.46 times of the inlet air speed.
The grading plant described in this embodiment, use the air intake as the boundary, two vortexes about the classifier forms, the airflow axial velocity distribution form of lower vortex is similar with traditional cyclone classifier, the outside is down air current, the inboard is up air current, the center appears the adverse current, but the speed of up air current obviously reduces than traditional type cyclone classifier, this is favorable to the timely subside of middlings, reduces the running loss of coarse product.
The axial velocity of the upper vortex of the part above the air inlet is a positive value, the maximum axial velocity is basically the same as that of the traditional cyclone classifier, the space airflow flows upwards, and the ascending airflow at the side wall can return fine particles carried in coarse powder to the central area in time, so that the improvement of the classification precision is facilitated.
The superfine powder enters a screen mesh grading cavity II-13 through an air inlet and an air inlet II-01 under the action of high-speed airflow, and under the action of a lower vortex, particles with large particle sizes fall along a screen mesh II-0601 in a rotating mode, and particles with smaller particle sizes pass through the screen mesh II-0601 to enter a medium powder grading chamber II-08 and fall along a medium powder discharge pipe II-09 below a conical part II-04.
The coarse powder discharging pipe II-10 is positioned at the lowest position of the elliptic bottom plate II-0602;
meanwhile, strong airflow continuously washes the screen II-0601 to avoid blockage.
The lower part of the cylindrical part is connected with a conical part, and the lower end of the conical part is provided with a medium powder outlet butterfly valve II-12 which is communicated with a quantitative dense packaging device through a medium powder discharge pipe.
Determination of the shape of the screen mesh:
the choice of screen aperture shape depends on the requirements on the screened product particle size and on the screen throughput. The sieve mesh is usually in the shape of round, square or rectangle.
The woven screen surface has a rectangular shape and a square shape, when the superfine powder cell walls of the peanut shells are damaged, the shapes of powder particles are irregular, and under the carrying effect of high-speed airflow, the spatial positions of the superfine powder particles are diversified, so that the shape of the screen holes is set to be circular, and the number of the screen holes is set to be 400 meshes in the embodiment in order to avoid the influence of the factors on the classification precision.
In this embodiment, the screen mesh classifying cavity is fixed at the cylinder part through six evenly distributed screen mesh support frames, and an included angle of 60 degrees is formed between the screen mesh support frames.
The grading impeller blades II-0702 are fixed between the grading impeller upper support II-0703 and the grading impeller lower support II-0704, the grading impeller II-0701 is fixed on the rotating shaft II-0709, the output shaft of the speed reducing motor II-0705 is coaxially fixed with the small synchronous wheel II-0707, the small synchronous wheel II-0707 and the large synchronous wheel II-0708 are driven through the synchronous belt II-0706, and the large synchronous wheel II-0708 is fixed on the outer side of the rotating shaft II-0709 and further drives the grading impeller II-0701 to rotate; the fine powder is carried to an upper vortex along with an upward airflow, the high-speed rotating classifying impeller II-0701 intercepts particles with large particle sizes through collision through the classifying impeller blades II-0702 on the periphery of the classifying impeller II-0701, the particles are classified again under the action of the classifying impeller blades II-0601 of the screen, and the fine powder enters the classifying impeller II-0701 and then enters a fine powder discharge pipe II-11 welded in the center of a top plate II-05 of the cylinder portion along with the airflow.
The working principle of the grading device is as follows:
the superfine peanut shell powder is fully scattered by a multi-stage scattering device, enters a grading cavity through an air inlet and an air outlet under the action of high-speed airflow, and is divided into an upper vortex and a lower vortex by taking the air inlet and the air outlet as boundaries;
under the action of the lower vortex, the peanut shell superfine powder falls along the sieve in a rotating way, and particles with the particle size smaller than the aperture pass through the sieve, enter the medium powder grading chamber and fall along the medium powder discharge pipe;
when the particle size is larger than the aperture, the particles fall to an inclined bottom plate with a smooth surface along the screen mesh and slide to a coarse powder discharge port, and strong airflow continuously washes the screen mesh to avoid the screen mesh from being blocked;
the fine powder is carried to the upper vortex along with the upward airflow after the radial resultant force applied to the fine powder points to the center, the particles with large particle sizes entrained in the fine powder are intercepted by the grading impeller rotating at high speed through the peripheral blades of the grading impeller, the fine powder is graded again under the action of the screen, and the fine powder enters the fine powder discharging pipe along with the airflow after entering the grading impeller.
Example 3:
the embodiment 3 of the disclosure provides a peanut shell superfine powder scattering and grading packaging system which comprises a scattering device provided in embodiment 1 and a grading device provided in embodiment 2, and details are not repeated here.
The structure of the packaging device is as follows:
referring to the attached drawings 13-14, the classified peanut shell superfine powder falls to a weighing mechanism III-03 through a feeding hopper III-01, the weighing mechanism III-03 comprises a weighing hopper III-0301, and a supporting plate III-0304 is welded on a rack and used for supporting the weighing hopper III-0301.
The weighing hopper III-0301 is connected with four uniformly distributed supporting rods III-0305 provided with gravity sensors III-0303 and used for measuring the weight of the superfine powder.
Two sides of a packaging blanking pipeline III-04 are connected with a clamping machine arm III-05 through bolts III-06 and are used for fixing a packaging bag, a clamping ring III-07 is sleeved at the forehead bottom of the blanking pipeline, a weighing hopper is arranged in a weighing mechanism cabinet body, and the cabinet body is opened and closed through a weighing mechanism cabinet door III-0306.
The vibration compacting mechanism is arranged at the lowest part of the quantitative compacting packaging device, the vibration compacting mechanism III-08 comprises a vibration platform III-0801, a vibration platform support III-0802 and a spring III-0803, and four corners and the central position of the vibration platform III-0801 are connected with the vibration platform support III-0802 through the spring III-0803; the flapping compacting mechanism III-09 comprises a flapping disk III-0901, a push rod III-0902 fixedly connected to the center of the flapping disk III-0901 penetrates through the rear side rack, after the quantifying is finished, the feeding hopper butterfly valve III-02 is closed, the weighing hopper butterfly valve III-0302 is opened, the superfine peanut shell powder falls into the cloth bag, meanwhile, the vibrating compacting mechanism III-08 and the flapping compacting mechanism III-09 jointly act to complete compacting work, and then the superfine peanut shell powder is conveyed out through a conveyor belt III-10 on the conveying rack III-11.
Various functions in the embodiment are controlled and realized through a control cabinet III-13, and a display screen III-12 and a button III-14 are arranged on the control cabinet.
The working principle of the packaging device specifically comprises the following steps: peanut shell coarse powder enters a feeding hopper through a coarse powder discharging pipe, a butterfly valve of the feeding hopper is opened, the coarse powder falls into a weighing hopper of a weighing mechanism, a gravity sensor converts the weight of the coarse powder into an electric signal and transmits the electric signal to a display screen of a control cabinet, two initial values M and M (M is 0.95M) are set, the feeding is decelerated when the weight reaches M, the feeding is stopped when the weight reaches M, and the butterfly valve of the feeding hopper is closed;
the arm is fixed the sack this moment, and the hopper butterfly valve of weighing is opened, and the peanut shell middlings that will weigh and finish falls to the sack in, and vibration platform and patting disc are ceaselessly closely knit to the middlings vibration in the sack simultaneously. And after the coarse powder falls off, transferring the cloth bag by a conveyor belt, packaging the next bag, and circularly working.
Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.
The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure, and various modifications and changes may be made to the present disclosure by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present disclosure should be included in the protection scope of the present disclosure.
Claims (10)
1. A peanut shell superfine powder scattering and grading packaging system is characterized by comprising a scattering device, a grading device and a packaging device which are sequentially connected, wherein the peanut shell superfine powder is scattered by the scattering device and then output to the grading device, and the grading device is used for grading the scattered peanut shell superfine powder and then output to the packaging device for packaging;
break up the device and break up material feeding unit including the double-end spiral, material feeding unit is broken up to the double-end spiral includes spiral pay-off cavity and sets up the double-end hob in spiral pay-off cavity, be fixed with double-end helical blade on the double-end hob, send the discharge gate that material feeding unit was broken up to the double-end spiral after breaking up the submicron powder through double-end helical blade shearing action.
2. The peanut shell ultra-micro powder scattering and grading packaging system as claimed in claim 1, wherein the double-head spiral scattering and feeding device comprises a buffer hopper for receiving the peanut shell ultra-micro powder into the spiral feeding cavity, and the buffer hopper comprises four plates which are sequentially connected end to end at different inclination angles.
3. The peanut shell ultra-micro powder breaking and grading packaging system as claimed in claim 2, wherein a storage hopper is fixed at the upper end of the buffer hopper, and the buffer hopper is welded at the upper side of the spiral feeding cavity.
4. The peanut shell ultra-micro powder breaking and grading packaging system as claimed in claim 1, wherein the breaking device further comprises an airflow breaking and feeding device, and the airflow breaking and feeding device is connected with the double-head spiral breaking and feeding device through a Venturi tube type tee;
the Venturi tube type tee joint comprises a contraction tube, a throat tube and a diffusion tube, the contraction tube impacts the double-head spiral scattering ultramicro powder received by the Venturi tube type tee joint after flowing through the throat tube and the ultramicro powder is scattered by the feeding device, and the scattered powder is output to an air inlet and an air outlet of the grading device through the diffusion tube.
5. The peanut shell superfine powder scattering and grading packaging system as claimed in claim 4, wherein the air flow scattering and feeding device comprises an air compressor, an air storage tank and an air dryer which are connected in sequence, and the output end of the air dryer is connected with the input end of a shrinkage pipe.
6. The peanut shell ultra-fine powder breaking and grading packaging system as claimed in claim 4, wherein a discharge funnel is fixed on a middle port of the Venturi tube type tee joint, the throat tube is arranged between an air inlet port and the middle port of the contraction tube, and the discharge funnel is opposite to a discharge port of the double-head spiral breaking and feeding device and is used for receiving ultra-fine powder output by the discharge port of the double-head spiral breaking and feeding device.
7. The peanut shell ultra-micro powder breaking and grading packaging system as claimed in claim 1, wherein the clearance between the double-head screw rod and the screw feeding cavity is set to be 4 mm;
or the double-end screw rod is a double-end screw rod with equal diameter and equal pitch;
or the double-end helical blade is in a helical curved surface shape.
8. The peanut shell ultra-micro powder scattering and grading packaging system as claimed in claim 1, wherein the grading device comprises a grading chamber, the grading chamber comprises a cylindrical part and a conical part arranged at the lower side of the cylindrical part, an air inlet and an air inlet are symmetrically and tangentially arranged at the middle position of the cylindrical part, a cylindrical screen grading chamber coaxial with the cylindrical part is arranged in the cylindrical part, and a grading impeller coaxial with the cylindrical part is arranged in the screen grading chamber;
the broken superfine powder is classified for the first time through rotating airflow formed by an air inlet feeding hole and an air inlet, the superfine powder with the grain diameter larger than the aperture of a screen mesh is classified for the second time by the screen mesh matched with the rotating airflow, and the superfine powder is classified for the third time by a classifying impeller matched with high-speed rotating airflow;
the screen mesh grading cavity is fixed on the inner side wall of the cylindrical part through a plurality of uniformly distributed screen mesh support frames.
9. The peanut shell ultra-micro powder scattering and grading packaging system as claimed in claim 1, wherein the packaging device comprises a feeding funnel and a weighing funnel, the graded ultra-micro powder output by the grading device enters the weighing funnel through the feeding funnel, the weighing funnel is arranged on a supporting plate, and a plurality of uniformly distributed supporting rods provided with gravity sensors are arranged at the bottom of the weighing funnel and used for measuring the weight of the ultra-micro powder.
10. The peanut shell superfine powder scattering and grading packaging system as claimed in claim 9, wherein a feeding pipeline is connected to the bottom of the weighing hopper, and two sides of the feeding pipeline are connected with a clamping machine arm through bolts for fixing a packaging bag;
the vibration compacting mechanism comprises a vibration platform, a vibration platform bracket and springs, and four corners and the center of the vibration platform are connected with the vibration platform bracket through the springs; patting closely knit mechanism including patting the disc, patting a push rod of disc center fixed connection and pierce through in rear side frame, promote to pat the disc through the push rod and pat the wrapping bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020538825.XU CN212099535U (en) | 2020-04-13 | 2020-04-13 | Graded packaging system is broken up to peanut shell superfine powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020538825.XU CN212099535U (en) | 2020-04-13 | 2020-04-13 | Graded packaging system is broken up to peanut shell superfine powder |
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| Publication Number | Publication Date |
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| CN212099535U true CN212099535U (en) | 2020-12-08 |
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| CN202020538825.XU Expired - Fee Related CN212099535U (en) | 2020-04-13 | 2020-04-13 | Graded packaging system is broken up to peanut shell superfine powder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115367166A (en) * | 2022-08-26 | 2022-11-22 | 中国林业科学研究院木材工业研究所 | Automatic weighing, compressing and packaging production line system and method for kelp |
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2020
- 2020-04-13 CN CN202020538825.XU patent/CN212099535U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115367166A (en) * | 2022-08-26 | 2022-11-22 | 中国林业科学研究院木材工业研究所 | Automatic weighing, compressing and packaging production line system and method for kelp |
| CN115367166B (en) * | 2022-08-26 | 2023-08-18 | 中国林业科学研究院木材工业研究所 | Automatic weighing, compressing and packaging production line system and method for seaweed |
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