CN110882923B - Grain cleaning equipment capable of conducting segmented grading cleaning - Google Patents

Grain cleaning equipment capable of conducting segmented grading cleaning Download PDF

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Publication number
CN110882923B
CN110882923B CN201911266925.XA CN201911266925A CN110882923B CN 110882923 B CN110882923 B CN 110882923B CN 201911266925 A CN201911266925 A CN 201911266925A CN 110882923 B CN110882923 B CN 110882923B
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assembly
screen
cylindrical screen
wall
inner cylindrical
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CN110882923A (en
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韩小涛
刘社会
王志卿
范国防
王彬
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Anhui Juli Grain Machine Technology Co ltd
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Anhui Juli Grain Machine Technology Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/18—Drum screens
    • B07B1/22—Revolving drums
    • B07B1/24—Revolving drums with fixed or moving interior agitators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
    • B07B11/06—Feeding or discharging arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/01—Selective separation of solid materials carried by, or dispersed in, gas currents using gravity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/90—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in food processing or handling, e.g. food conservation

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  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention relates to the technical field of grain cleaning, in particular to grain cleaning equipment capable of performing segmented grading cleaning, which comprises a rack assembly, a walking wheel assembly and a steering wheel assembly which are installed at the bottom end of the rack assembly, a vibrating screen assembly and a cylindrical screen assembly which are obliquely arranged in the rack assembly, an upper cover assembly and a feed hopper assembly which are installed at the top end of the rack assembly, wherein the cylindrical screen assembly is arranged above the vibrating screen assembly and is driven by the cylindrical screen driving assembly, the cylindrical screen driving assembly comprises a screen body driving motor and a driving shaft, and the driving shaft is installed at the output end of the screen body driving motor; the cylinder screen assembly comprises an inner cylinder screen and an outer cylinder screen which are coaxially arranged, and a buffer structure is further fixed on the inner wall of the inner cylinder screen; a discharge port at the lower end of the vibrating screen assembly is provided with a vertical air duct assembly, and the bottom end of the vertical air duct assembly is provided with a clean grain outlet; the invention prolongs the contact time of the mixed material and the inner cylindrical sieve, is beneficial to improving the impurity removal amount and avoids the waste of grains.

Description

Grain cleaning equipment capable of conducting segmented grading cleaning
Technical Field
The invention relates to the technical field of grain cleaning, in particular to grain cleaning equipment capable of performing segmented and graded cleaning.
Background
Grain is the basic life material that human beings rely on to live and develop, is the important strategic material of the country's estimated citizen of the relation, in people's life and national economic development, has special status and effect. Along with the progress of society and the continuous improvement of living standard of materials, the demand of people on grain and oil food which is pollution-free and has high nutritive value is urgent day by day, wherein the impurity in the grain is cleaned up as a very common procedure, so grain cleaning equipment is often used.
The grain cleaning equipment in the prior art is characterized in that a screen cylinder and a vibrating screen are respectively arranged, grains are processed by the screen cylinder and then discharged and operated by the vibrating screen, large-sized impurities and small-sized impurities cannot be separated and removed at one time, a plurality of manual steps are needed, the efficiency is low, and the impurities cannot be segmented and graded; in addition, the retention time of the mixed material in the inner cylindrical sieve is short, and part of grains in the mixed material can not penetrate through the sieve pores of the inner cylindrical sieve and directly fall with large impurities, so that the waste of grains is caused, and the impurity removal effect is not ideal.
Disclosure of Invention
The invention designs a grain cleaning device capable of carrying out sectional grading cleaning aiming at the problems provided by the background technology, solves the problem that the impurity cannot be segmented and graded, and also solves the problems that the retention time of the mixed material in the inner cylindrical sieve is short, the grain is easy to waste, and the impurity removal effect is not ideal.
The invention is realized by the following technical scheme:
a grain cleaning device capable of performing segmented grading cleaning comprises a rack assembly, a traveling wheel assembly and a steering wheel assembly which are installed at the bottom end of the rack assembly, a vibrating screen assembly and a cylindrical screen assembly which are obliquely arranged in the rack assembly, an upper cover assembly and a feed hopper assembly which are installed at the top end of the rack assembly, an electrical control assembly which is installed on the front side surface of the rack assembly, the cylindrical screen assembly which is arranged above the vibrating screen assembly, the cylindrical screen assembly which is driven by the cylindrical screen drive assembly, the cylindrical screen drive assembly which comprises a screen body drive motor and a drive shaft, and the drive shaft which is installed with the output end of the screen body drive motor; the cylinder screen assembly comprises an inner cylinder screen and an outer cylinder screen which are coaxially arranged, a first supporting frame is fixed between the outer wall of the inner cylinder screen and the inner wall of the outer cylinder screen, the inner wall of the inner cylinder screen is fixed with the outer wall of the driving shaft through a second supporting frame, and a buffering structure is further fixed on the inner wall of the inner cylinder screen; the lower end discharge gate of shale shaker assembly is equipped with perpendicular wind channel assembly, the bottom of perpendicular wind channel assembly is equipped with clean grain export, the top of perpendicular wind channel assembly is linked together with the pulse dust collector assembly, the outer wall of pulse dust collector assembly still is linked together through tuber pipe and fan assembly.
As a further improvement of the above scheme, the buffer structure comprises an arc-shaped plate and two fixed seats, the two fixed seats are welded to the inner wall of the inner cylindrical sieve, and the two fixed seats and the arc-shaped plate are fixedly mounted through fixing bolts; the fixing bases are provided with a clamping groove, one side of the fixing bases, far away from the inner wall of the inner cylindrical screen, is provided with a fixing hole which transversely penetrates through the clamping groove, and the arc-shaped plate is provided with two screw holes matched with the fixing bolts.
As a further improvement of the above scheme, the buffer structure comprises an arc-shaped plate and two fixing seats, a round rod is fixed on the upper end face of each fixing seat, a spring is sleeved on the outer wall of each round rod, two round holes matched with the round rods are formed in the surface of the arc-shaped plate, the outer wall of each round rod and the lower surface of each round rod are abutted to the top ends of the springs in a sleeved mode, and limiting caps are fixed on the top ends of the two round rods.
As a further improvement of the scheme, the number of the buffer structures is not less than 3 groups, and the buffer structures are uniformly distributed along the inner wall spiral line of the inner cylindrical screen.
As a further improvement of the above scheme, the mesh diameter of the inner cylindrical screen is larger than the mesh diameter of the outer cylindrical screen.
As a further improvement of the scheme, the frame assembly is further provided with a large impurity discharge barrel and a small impurity discharge pipe, a discharge port of the inner cylindrical sieve is communicated with the large impurity discharge barrel, a discharge port of a gap between the inner cylindrical sieve and the outer cylindrical sieve is communicated with a feed port of the vibrating sieve assembly, and a cavity outside the outer cylindrical sieve is communicated with the small impurity discharge pipe.
As a further improvement of the scheme, the feed hopper assembly comprises a feed hopper and a hopper cover, the hopper cover is hinged to the top end of the feed hopper, and the discharge port of the feed hopper faces the top end of the cylindrical screen assembly.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the plurality of buffer structures are fixed on the inner wall of the inner cylindrical sieve, and the buffer structures are uniformly distributed along the inner wall spiral line of the inner cylindrical sieve, when the buffer structures rotate along with the inner cylindrical sieve, the mixed material added from the feed hopper assembly can be intermittently and upwards lifted or thrown for a certain distance, so that the contact time of the mixed material and the inner cylindrical sieve is prolonged, the impurity removal amount is favorably improved, the phenomenon that part of grains in the mixed material directly fall into a large impurity discharge cylinder with large impurities without having time to pass through the sieve pores of the inner cylindrical sieve is avoided, and the waste of grains is avoided.
2. The equipment adopts a mode of combining a roller and vibration to segment and clean the impurities in the materials in a grading way, the materials form waterfall type distribution at a grain cleaning opening, and the impurity removal efficiency is high; a pulse dust collector and a fan are also adopted for binary dust fall, so that the dust emission is reduced; meanwhile, the equipment is convenient to move and simple to operate, and is suitable for cleaning operation of various grain depots, different materials are cleaned, and the cylindrical sieve and the vibrating sieve with corresponding meshes are replaced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a top view of the present invention;
FIG. 5 is an assembly schematic of the cylindrical screen assembly and the cylindrical screen drive assembly of the present invention;
fig. 6 is an exploded view showing the installation of the buffer structure in embodiment 1 of the present invention;
FIG. 7 is an assembled view of the buffer structure in embodiment 2 of the present invention;
fig. 8 is an exploded view showing the installation of the cushion structure in embodiment 2 of the present invention.
Wherein, 1-a frame assembly, 2-a walking wheel assembly, 3-a steering wheel assembly, 4-a vibrating screen assembly, 5-a cylindrical screen assembly, 51-an inner cylindrical screen, 52-a fixed seat, 53-a first supporting seat, 54-a second supporting seat, 55-a buffer structure, 551-an arc plate, 552-a fixed seat, 553-a fixed bolt, 554-a clamping groove, 555-a fixed hole, 556-a screw hole, 557-a spring, 558-a round hole, 559-a limit cap, 5510-a round rod, 6-an upper cover assembly, 7-a feed hopper assembly, 71-a feed hopper, 72-a feed hopper cover, 8-an electrical appliance control assembly, 9-a cylindrical screen driving assembly, 91-a screen body driving motor, 92-a driving shaft and 10-a vertical air duct assembly, 11-a clean grain outlet, 12-a pulse dust collector assembly, 13-an air pipe, 14-a fan assembly, 15-a large impurity discharge cylinder and 16-a small impurity discharge pipe.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present invention can be understood by those skilled in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
The technical scheme of the invention is further explained by combining the attached drawings.
A grain cleaning device capable of performing segmented grading cleaning is disclosed, as shown in figures 1-5, and comprises a rack assembly 1, a traveling wheel assembly 2 and a steering wheel assembly 3 which are installed at the bottom end of the rack assembly 1, a vibrating screen assembly 4 and a cylindrical screen assembly 5 which are obliquely arranged in the rack assembly 1, an upper cover assembly 6 and a feed hopper assembly 7 which are installed at the top end of the rack assembly 1, wherein the feed hopper assembly 7 comprises a feed hopper 71 and a hopper cover 72, the hopper cover 72 is hinged at the top end of the feed hopper 71, a discharge port of the feed hopper 71 is opposite to the top end of the cylindrical screen assembly 5, an electrical control assembly 8 is installed on the front side surface of the rack assembly 1, and the electrical control assembly 8 can control left and right electrical devices in the device; the cylindrical screen assembly 5 is arranged above the vibrating screen assembly 4, the cylindrical screen assembly 5 is driven by a cylindrical screen driving assembly 9, the cylindrical screen driving assembly 9 comprises a screen body driving motor 91 and a driving shaft 92, and the driving shaft 92 is installed at the output end of the screen body driving motor 91; the cylindrical screen assembly 5 comprises an inner cylindrical screen 51 and an outer cylindrical screen 52 which are coaxially arranged, the diameter of the screen hole of the inner cylindrical screen 51 is larger than that of the screen hole of the outer cylindrical screen 52, a first support frame 53 is fixed between the outer wall of the inner cylindrical screen 51 and the inner wall of the outer cylindrical screen 52, the inner wall of the inner cylindrical screen 51 is fixed with the outer wall of the driving shaft 92 through a second support frame 54, a buffer structure 55 is further fixed on the inner wall of the inner cylindrical screen 51, the number of the buffer structures 55 is not less than 3, and the buffer structures are uniformly distributed along the spiral line of the inner wall of the inner cylindrical screen 51; a discharge hole at the lower end of the vibrating screen assembly 4 is provided with a vertical air duct assembly 10, the bottom end of the vertical air duct assembly 10 is provided with a clean grain outlet 11, the top end of the vertical air duct assembly 10 is communicated with a pulse dust collector assembly 12, and the outer wall of the pulse dust collector assembly 12 is also communicated with a fan assembly 14 through an air pipe 13; the frame assembly 1 is also provided with a large impurity discharge cylinder 15 and a small impurity discharge pipe 16, the discharge port of the inner cylindrical screen 51 is communicated with the large impurity discharge cylinder 15, the discharge port of the gap between the inner cylindrical screen 51 and the outer cylindrical screen 52 is communicated with the feed port of the vibrating screen assembly 4, and the cavity outside the outer cylindrical screen 52 is communicated with the small impurity discharge pipe 16.
The working principle of the invention is as follows: firstly, the electric appliance control assembly 8 is used for switching on a power supply of the vibrating screen assembly 4, the cylindrical screen assembly 5, the pulse dust collector assembly 12, the fan assembly 14 and the like in the grain cleaning equipment, then the hopper cover 72 is opened, the mixed material is poured into the hopper 71, the discharge port of the hopper 71 is opposite to the top end of the cylindrical screen assembly 5, so that the mixed material continuously enters the inner cylindrical screen 51 under the action of gravity, the large impurities are discharged through the discharge port of the inner cylindrical screen 51 under the rotation of the inner cylindrical screen 51 and the outer cylindrical screen 52, the grains and the small impurities pass through the screen holes of the inner cylindrical screen 51 and enter the gap between the inner cylindrical screen 51 and the outer cylindrical screen 52, the small impurities further pass through the screen holes of the outer cylindrical screen 52 and are finally discharged through the small impurity discharge pipe 16, the grains are dropped into the vibrating screen assembly 4 together with the fine impurities, and are vibrated by the vibrating screen in the vibrating screen assembly 4, the fine impurities enter the vertical air channel assembly 10 from a discharge hole of the vibrating screen assembly 4, the fine impurities enter the vertical air channel assembly 10 and are discharged under the action of the pulse dust collector assembly 12 and the fan assembly 14, and the net grains are discharged from a net grain outlet 11 at the bottom end of the vertical air channel assembly 10, so that the screening process is finally finished; wherein, at the rotation in-process of interior drum sieve 51 and outer drum sieve 52, buffer structure 55 upwards promotes the misce bene or throws a section of distance to prolong the contact time of misce bene and interior drum sieve 51, be favorable to improving except that impurity amount, avoided part cereal in the misce bene to come not to pass interior drum sieve 51 sieve mesh and direct and big impurity drops to big impurity discharge section of thick bamboo 15, avoided the waste of cereal.
Example 1
A grain cleaning device capable of performing segmented grading cleaning is disclosed, as shown in figures 1-5, and comprises a rack assembly 1, a traveling wheel assembly 2 and a steering wheel assembly 3 which are installed at the bottom end of the rack assembly 1, a vibrating screen assembly 4 and a cylindrical screen assembly 5 which are obliquely arranged in the rack assembly 1, an upper cover assembly 6 and a feed hopper assembly 7 which are installed at the top end of the rack assembly 1, wherein the feed hopper assembly 7 comprises a feed hopper 71 and a hopper cover 72, the hopper cover 72 is hinged at the top end of the feed hopper 71, a discharge port of the feed hopper 71 is opposite to the top end of the cylindrical screen assembly 5, an electrical control assembly 8 is installed on the front side surface of the rack assembly 1, and the electrical control assembly 8 can control left and right electrical devices in the device; the cylinder screen assembly 5 is arranged above the vibrating screen assembly 4, the cylinder screen assembly 5 is driven by a cylinder screen driving assembly 9, the cylinder screen driving assembly 9 comprises a screen body driving motor 91 and a driving shaft 92, and the driving shaft 92 is arranged at the output end of the screen body driving motor 91; the cylindrical screen assembly 5 comprises an inner cylindrical screen 51 and an outer cylindrical screen 52 which are coaxially arranged, the diameter of the screen hole of the inner cylindrical screen 51 is larger than that of the screen hole of the outer cylindrical screen 52, a first support frame 53 is fixed between the inner wall of the inner cylindrical screen 51 and the outer wall of the outer cylindrical screen 52, the inner wall of the inner cylindrical screen 51 is fixed with the outer wall of the driving shaft 92 through a second support frame 54, a buffer structure 55 is further fixed on the inner wall of the inner cylindrical screen 51, the number of the buffer structures 55 is not less than 3, and the buffer structures are uniformly distributed along the spiral line of the inner wall of the inner cylindrical screen 51; a discharge hole at the lower end of the vibrating screen assembly 4 is provided with a vertical air duct assembly 10, the bottom end of the vertical air duct assembly 10 is provided with a clean grain outlet 11, the top end of the vertical air duct assembly 10 is communicated with a pulse dust collector assembly 12, and the outer wall of the pulse dust collector assembly 12 is also communicated with a fan assembly 14 through an air pipe 13; the frame assembly 1 is also provided with a large impurity discharge cylinder 15 and a small impurity discharge pipe 16, the discharge port of the inner cylindrical screen 51 is communicated with the large impurity discharge cylinder 15, the discharge port of the gap between the inner cylindrical screen 51 and the outer cylindrical screen 52 is communicated with the feed port of the vibrating screen assembly 4, and the cavity outside the outer cylindrical screen 52 is communicated with the small impurity discharge pipe 16.
As shown in fig. 6, the buffering structure 55 includes an arc-shaped plate 551 and two fixing bases 552, both the two fixing bases 552 are welded to the inner wall of the inner cylindrical screen 51, and the two fixing bases 552 are fixedly mounted with the arc-shaped plate 551 through fixing bolts 553; clamping grooves 554 are formed in one sides, far away from the inner wall of the inner cylindrical sieve 51, of the two fixing seats 552, fixing holes 555 which transversely penetrate through the clamping grooves 554 are formed in the side walls of the two fixing seats 552, and two screw holes 556 which are matched with the fixing bolts 553 are formed in the arc-shaped plates 551; the arc-shaped plate 551 can block part of the mixed materials and prolong the detention time of the mixed materials when rotating, and can play a role in throwing and lifting when rotating, so that the impurity removal amount is improved, the contact time of the mixed materials and the inner cylindrical sieve 51 is favorable for improving the impurity removal amount, and the phenomenon that part of grains in the mixed materials directly fall into the large impurity discharge cylinder 15 together with large impurities without passing through the sieve pores of the inner cylindrical sieve 51 is avoided, so that the waste of the grains is avoided; meanwhile, the installation, the disassembly and the replacement between the two fixed seats 552 and the arc-shaped plate 551 are also very simple and convenient.
Example 2
A grain cleaning device capable of performing segmented grading cleaning is disclosed, as shown in figures 1-5, and comprises a rack assembly 1, a traveling wheel assembly 2 and a steering wheel assembly 3 which are installed at the bottom end of the rack assembly 1, a vibrating screen assembly 4 and a cylindrical screen assembly 5 which are obliquely arranged in the rack assembly 1, an upper cover assembly 6 and a feed hopper assembly 7 which are installed at the top end of the rack assembly 1, wherein the feed hopper assembly 7 comprises a feed hopper 71 and a hopper cover 72, the hopper cover 72 is hinged at the top end of the feed hopper 71, a discharge port of the feed hopper 71 is opposite to the top end of the cylindrical screen assembly 5, an electrical control assembly 8 is installed on the front side surface of the rack assembly 1, and the electrical control assembly 8 can control left and right electrical devices in the device; the cylindrical screen assembly 5 is arranged above the vibrating screen assembly 4, the cylindrical screen assembly 5 is driven by a cylindrical screen driving assembly 9, the cylindrical screen driving assembly 9 comprises a screen body driving motor 91 and a driving shaft 92, and the driving shaft 92 is installed at the output end of the screen body driving motor 91; the cylindrical screen assembly 5 comprises an inner cylindrical screen 51 and an outer cylindrical screen 52 which are coaxially arranged, the screen hole diameter of the inner cylindrical screen 51 is larger than that of the outer cylindrical screen 52, a first support frame 53 is fixed between the outer wall of the inner cylindrical screen 51 and the inner wall of the outer cylindrical screen 52, the inner wall of the inner cylindrical screen 51 is fixed with the outer wall of the driving shaft 92 through a second support frame 54, a buffer structure 55 is further fixed on the inner wall of the inner cylindrical screen 51, the number of the buffer structures 55 is not less than 3, and the buffer structures are uniformly distributed along the spiral line of the inner wall of the inner cylindrical screen 51; a discharge port at the lower end of the vibrating screen assembly 4 is provided with a vertical air duct assembly 10, the bottom end of the vertical air duct assembly 10 is provided with a clean grain outlet 11, the top end of the vertical air duct assembly 10 is communicated with a pulse dust collector assembly 12, and the outer wall of the pulse dust collector assembly 12 is also communicated with a fan assembly 14 through an air pipe 13; the frame assembly 1 is also provided with a large impurity discharge cylinder 15 and a small impurity discharge pipe 16, the discharge port of the inner cylindrical screen 51 is communicated with the large impurity discharge cylinder 15, the discharge port of the gap between the inner cylindrical screen 51 and the outer cylindrical screen 52 is communicated with the feed port of the vibrating screen assembly 4, and the cavity outside the outer cylindrical screen 52 is communicated with the small impurity discharge pipe 16.
As shown in fig. 7-8, the buffer structure 55 includes an arc-shaped plate 551 and two fixing bases 552, a round rod 5510 is fixed on the upper end surface of the two fixing bases 552, a spring 557 is sleeved on the outer wall of the round rod 5510, two round holes 558 matching with the round rod 5510 are formed on the surface of the arc-shaped plate 551, the arc-shaped plate 551 is sleeved on the outer wall of the round rod 5510, the lower surface of the arc-shaped plate 551 abuts against the top end of the spring 557, and a limit cap 559 is fixed on the top end of the two round rods 5510; because the setting of spring 557, arc 551 can bounce the combined material on the one hand, can also play the effect of shedding and lifting to the combined material, has prolonged the contact time of combined material with interior drum sieve 51, is favorable to improving and removes impurity quantity, has avoided part cereal to come not to pass interior drum sieve 51 sieve mesh in the combined material and directly drops to big impurity discharge section of thick bamboo 15 with big impurity, has avoided the waste of cereal.
In conclusion, the equipment adopts a mode of combining the roller and the vibration to segment and clean the impurities in the materials in a grading way, the materials form waterfall type distribution at the grain cleaning opening, and the impurity removal efficiency is high; a pulse dust collector and a fan are also adopted for binary dust fall, so that the dust emission is reduced; meanwhile, the equipment is convenient to move and simple to operate, and is suitable for cleaning operation of various grain depots, different materials are cleaned, and the cylindrical sieve and the vibrating sieve with corresponding meshes are replaced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. The utility model provides a can carry out grain cleaning equipment of segmentation grading clearance, includes frame assembly (1), walking wheel assembly (2) and directive wheel assembly (3) of frame assembly (1) bottom installation, the inside shale shaker assembly (4) and the cylinder screen assembly (5) that the slope set up of frame assembly (1), upper cover assembly (6) and feeder hopper assembly (7) of frame assembly (1) top installation, the electrical apparatus control assembly (8) of frame assembly (1) front flank installation, its characterized in that: the cylindrical screen assembly (5) is arranged above the vibrating screen assembly (4), the cylindrical screen assembly (5) is driven by a cylindrical screen driving assembly (9), the cylindrical screen driving assembly (9) comprises a screen body driving motor (91) and a driving shaft (92), and the driving shaft (92) is installed at the output end of the screen body driving motor (91); the cylindrical screen assembly (5) comprises an inner cylindrical screen (51) and an outer cylindrical screen (52) which are coaxially arranged, a first supporting frame (53) is fixed between the outer wall of the inner cylindrical screen (51) and the inner wall of the outer cylindrical screen (52), the inner wall of the inner cylindrical screen (51) is fixed with the outer wall of the driving shaft (92) through a second supporting frame (54), and a buffer structure (55) is further fixed on the inner wall of the inner cylindrical screen (51); a discharge hole at the lower end of the vibrating screen assembly (4) is provided with a vertical air duct assembly (10), the bottom end of the vertical air duct assembly (10) is provided with a clean grain outlet (11), the top end of the vertical air duct assembly (10) is communicated with a pulse dust collector assembly (12), and the outer wall of the pulse dust collector assembly (12) is also communicated with a fan assembly (14) through an air pipe (13);
the buffer structure (55) comprises an arc-shaped plate (551) and two fixing seats (552), a round rod (5510) is fixed on the upper end face of each fixing seat (552), a spring (557) is sleeved on the outer wall of each round rod (5510), two round holes (558) matched with the round rods (5510) are formed in the surface of each arc-shaped plate (551), the outer wall of each round rod (5510) is sleeved with each arc-shaped plate (551), the lower surface of each arc-shaped plate is abutted to the top end of the corresponding spring (557), and a limiting cap (559) is fixed on the top ends of the two round rods (5510).
2. The grain cleaning equipment capable of carrying out segmented grading cleaning according to claim 1, characterized in that: the number of the buffer structures (55) is not less than 3 groups, and the buffer structures are uniformly distributed along the inner wall spiral line of the inner cylindrical screen (51).
3. The grain cleaning equipment capable of carrying out segmented grading cleaning according to claim 1, characterized in that: the screen hole diameter of the inner cylindrical screen (51) is larger than that of the outer cylindrical screen (52).
4. The grain cleaning equipment capable of carrying out segmented grading cleaning according to claim 1, characterized in that: the machine frame assembly (1) is further provided with a large impurity discharge barrel (15) and a small impurity discharge pipe (16), a discharge hole of the inner cylindrical sieve (51) is communicated with the large impurity discharge barrel (15), a discharge hole of a gap between the inner cylindrical sieve (51) and the outer cylindrical sieve (52) is communicated with a feeding hole of the vibrating sieve assembly (4), and a cavity outside the outer cylindrical sieve (52) is communicated with the small impurity discharge pipe (16).
5. The grain cleaning equipment capable of carrying out segmented grading cleaning according to claim 1, characterized in that: the feed hopper assembly (7) comprises a feed hopper (71) and a hopper cover (72), the hopper cover (72) is hinged to the top end of the feed hopper (71), and the discharge hole of the feed hopper (71) is opposite to the top end of the cylindrical screen assembly (5).
CN201911266925.XA 2019-12-11 2019-12-11 Grain cleaning equipment capable of conducting segmented grading cleaning Active CN110882923B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911266925.XA CN110882923B (en) 2019-12-11 2019-12-11 Grain cleaning equipment capable of conducting segmented grading cleaning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201911266925.XA CN110882923B (en) 2019-12-11 2019-12-11 Grain cleaning equipment capable of conducting segmented grading cleaning

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CN110882923A CN110882923A (en) 2020-03-17
CN110882923B true CN110882923B (en) 2022-07-12

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203356070U (en) * 2013-06-26 2013-12-25 安徽聚力机械制造有限公司 Multifunctional combined type grain cleaning center
CN107116021A (en) * 2017-06-29 2017-09-01 吴蕴仪 A kind of oscillatory type tea aroma raising screening machine
CN109277284B (en) * 2018-12-06 2024-05-17 安徽马钢嘉华新型建材有限公司 Drum screen buffer rib and drum screen extension
CN110102476A (en) * 2019-05-16 2019-08-09 界首市飞天龙粮机有限公司 A kind of environment protection cleaning sieve

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