CN112934672A - Cereal quantitative screening device - Google Patents

Cereal quantitative screening device Download PDF

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Publication number
CN112934672A
CN112934672A CN202110121349.0A CN202110121349A CN112934672A CN 112934672 A CN112934672 A CN 112934672A CN 202110121349 A CN202110121349 A CN 202110121349A CN 112934672 A CN112934672 A CN 112934672A
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CN
China
Prior art keywords
screening
collecting cylinder
screen
feeding
collecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110121349.0A
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Chinese (zh)
Inventor
喻圣林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Quanjiao Chahe Agricultural Machinery Services Specialized Cooperatives
Original Assignee
Quanjiao Chahe Agricultural Machinery Services Specialized Cooperatives
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Quanjiao Chahe Agricultural Machinery Services Specialized Cooperatives filed Critical Quanjiao Chahe Agricultural Machinery Services Specialized Cooperatives
Priority to CN202110121349.0A priority Critical patent/CN112934672A/en
Publication of CN112934672A publication Critical patent/CN112934672A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • 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
    • B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
    • B07B1/4663—Multi-layer screening surfaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
    • 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
    • B07B2201/00—Details applicable to machines for screening using sieves or gratings
    • B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention provides a grain quantitative screening device which comprises a feeding chute, a plurality of screening drums, a first collecting drum, a second collecting drum and a third collecting drum, wherein the feeding chute is provided with a plurality of screening drums; the bottom end of the feeding groove is provided with a plurality of feeding holes, and the bottom end of the feeding groove is provided with a quantitative feeding assembly for quantitatively feeding materials into the feeding holes; the screening cylinders are vertically arranged below the feeding groove, the top ends of the screening cylinders are connected with the bottom of the feeding groove, and the screening cylinders are respectively communicated with the feeding holes; a first screen and a second screen which are arranged up and down are arranged in the screening cylinder; the first collecting cylinder is arranged below the feeding groove; the second collecting cylinder is arranged below the first collecting cylinder; the third collecting cylinder is arranged below the second collecting cylinder. According to the grain grading and screening device, the grain can be graded and screened by arranging the screening cylinder, the first screen and the second screen, and the grain of different grades can be collected by arranging the first collecting cylinder, the second collecting cylinder and the third collecting cylinder.

Description

Cereal quantitative screening device
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a grain quantitative screening device.
Background
In the process of processing the grains, the grain particles are generally required to be classified and screened in order to ensure the uniformity of the grain particle size and the quality of the grains, and the screening is to divide the mixed materials with different particle sizes into various particle size grades by using a screen surface with holes. But the screening efficiency of the existing grain particle screening device is low.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a quantitative grain screening device.
The invention provides a grain quantitative screening device which comprises a feeding chute, a plurality of screening drums, a first collecting drum, a second collecting drum and a third collecting drum; wherein:
the bottom end of the feeding groove is provided with a plurality of feeding holes, and the bottom end of the feeding groove is provided with a quantitative feeding assembly for quantitatively feeding materials into the feeding holes;
the screening cylinders are vertically arranged below the feeding groove, the top ends of the screening cylinders are connected with the bottom of the feeding groove, and the screening cylinders are respectively communicated with the feeding holes; a first screen and a second screen which are arranged up and down are arranged in the screening cylinder, the diameter of a screen hole of the first screen is larger than that of a screen hole of the second screen, a first screening hole is formed in the position, close to the upper part of the first screen, on the side wall of the screening cylinder, a first electromagnetic valve is arranged in the first screening hole, a second screening hole is formed in the position, close to the upper part of the second screen, on the side wall of the screening cylinder, and a second electromagnetic valve is arranged in the second screening hole;
the first collecting cylinder is arranged below the feeding groove, the screening cylinders penetrate through the first collecting cylinder and are fixedly connected with the first collecting cylinder, and the first screening holes of the screening cylinders are communicated with the first collecting cylinder;
the second collecting cylinder is arranged below the first collecting cylinder, the screening cylinders penetrate through the second collecting cylinder and are fixedly connected with the second collecting cylinder, and second screening holes of the screening cylinders are communicated with the second collecting cylinder;
the third surge drum sets up in second surge drum below, and a plurality of screening drum bottoms all are connected with the third surge drum and the screening drum all communicates with the third surge drum.
Preferably, a plurality of first chutes which are vertically arranged are circumferentially arranged on the inner wall of the screening cylinder close to the first screen, a first guide rod which is vertically arranged is installed in the first chute, a first sliding block is installed on the first guide rod in a sliding fit manner, the first sliding block is connected with the edge of the first screen, and a first spring is sleeved on the first guide rod below the first sliding block.
Preferably, a plurality of second chutes which are vertically arranged are circumferentially arranged on the inner wall of the screening cylinder close to the second screen, a second guide rod which is vertically arranged is installed in the second chute, a second sliding block is installed on the second guide rod in a sliding fit manner, the second sliding block is connected with the edge of the second screen, and a second spring is sleeved on the second guide rod at a position below the second sliding block.
Preferably, the quantitative feeding assembly comprises a rack, a driving part and a plurality of gears, a linear guide rail is arranged at the position, located on one side of the plurality of feeding holes, of the bottom end of the feeding chute, stop blocks are arranged at two ends of the linear guide rail, the rack is slidably mounted on the linear guide rail, and the driving part is used for driving the rack to move back and forth on the linear guide rail; a plurality of gears set up and a plurality of gears all with rack toothing with a plurality of feed ports one-to-one respectively, and the gear is close to feed port one side and is connected with the connecting rod, connecting rod and the round pin axle normal running fit who fixes in the feed chute bottom, and the connecting rod is kept away from gear one end and is connected with the sprue that is used for blockking up the feed port.
Preferably, the third collecting cylinder is provided with a hot air inlet pipe, one side of the third collecting cylinder, which is far away from the hot air inlet pipe, is provided with a first induced air pipe communicated with the second collecting cylinder, one side of the second collecting cylinder, which is far away from the first induced air pipe, is provided with a second induced air pipe communicated with the first collecting cylinder, and one side of the first collecting cylinder, which is far away from the second induced air pipe, is provided with an air outlet pipe.
Preferably, the bottom end of the first collecting cylinder is obliquely arranged, and the bottom end of the first collecting cylinder is provided with a first discharge hole and a third electromagnetic valve is arranged in the first discharge hole.
Preferably, the bottom end of the second collecting cylinder is obliquely arranged, and the bottom end of the second collecting cylinder is provided with a second discharge hole and a fourth electromagnetic valve is arranged in the second discharge hole.
Preferably, the bottom end of the third collecting cylinder is obliquely arranged, and the bottom end of the third collecting cylinder is provided with a third discharge hole and a fifth electromagnetic valve is arranged in the third discharge hole.
According to the quantitative grain screening device, the grain can be classified and screened by arranging the screening cylinder, the first screen and the second screen, and grains of different grades can be collected by arranging the first collecting cylinder, the second collecting cylinder and the third collecting cylinder; quantitative feeding of single screening is realized by arranging the quantitative feeding assembly, so that the screening effect is further improved; through setting up hot-blast inlet pipe, first induced duct and second induced duct, realize drying the cereal of different ranks after the screening.
Drawings
FIG. 1 is a schematic structural diagram of a quantitative grain screening apparatus according to the present invention;
FIG. 2 is a schematic structural view of a quantitative feeding assembly in a quantitative grain screening apparatus according to the present invention;
FIG. 3 is a view showing a structure of a first screen installed in a quantitative grain screening apparatus according to the present invention;
fig. 4 is a structural view illustrating the installation of a second screen in a quantitative grain screening apparatus according to the present invention.
Detailed Description
Referring to fig. 1 to 4, the present invention provides a grain quantitative screening apparatus, which includes a feed chute 1, a plurality of screening drums 2, a first collecting drum 3, a second collecting drum 4, and a third collecting drum 5; wherein:
as shown in fig. 1, a plurality of feed holes 6 are opened at the bottom end of the feed chute 1, and a quantitative feeding assembly for feeding materials to the plurality of feed holes 6 at fixed amount is installed at the bottom end of the feed chute 1.
As shown in fig. 2, specifically, the quantitative feeding assembly includes a rack 19, a driving member 20 and a plurality of gears 21, a linear guide 22 is disposed at a position of the bottom end of the feeding chute 1 at one side of the plurality of feeding holes 6, stoppers 23 are disposed at two ends of the linear guide 22, the rack 19 is slidably mounted on the linear guide 22, and the driving member 20 is used for driving the rack 19 to move back and forth on the linear guide 22; a plurality of gears 21 set up and a plurality of gears 21 all mesh with rack 19 with a plurality of feed ports 6 one-to-one respectively, and gear 21 is close to feed port 6 one side and is connected with connecting rod 24, and connecting rod 24 and the round pin axle 25 normal running fit who fixes in feed chute 1 bottom, and connecting rod 24 keep away from gear 21 one end and are connected with the sprue 26 that is used for blockking up feed port 6. The driving piece 20 drives the rack 19 to move back and forth on the linear guide rail 22, the rack 19 moves to drive the gear 21 to rotate, the gear 21 drives the connecting rod 24 to swing, the plugging block 26 at the end part of the connecting rod 24 can intermittently plug the feed hole 6 when swinging, the interval time is moved through the control rack 29, the time for the plugging block 26 to plug the feed hole 6 is controlled, and quantitative feeding to the feed hole 6 is realized. In a specific embodiment, in order to improve the feeding effect, a stirring mechanism or a screw conveying mechanism may be installed in the feeding chute 1.
As shown in fig. 1, 3 and 4, the screening cartridges 2 are vertically arranged below the feed chute 1, the top ends of the screening cartridges 2 are connected with the bottom of the feed chute 1, and the screening cartridges 2 are respectively communicated with the feed holes 6. Install first screen cloth 7, the second screen cloth 8 of arranging from top to bottom in the screen cylinder 2, the sieve mesh diameter of first screen cloth 7 is greater than the sieve mesh diameter of second screen cloth 8, is close to first screen cloth 7 position top position on the 2 lateral walls of screen cylinder and has seted up first screening hole 9, installs first solenoid valve in the first screening hole 9, is close to second screen cloth 8 top position on the 2 lateral walls of screen cylinder and has seted up second screening hole 10, installs second solenoid valve in the second screening hole 10. Through the direct entering screen drum 2 of ration cereal of feed port 6, then pass through first screen cloth 7, the screening of second screen cloth 8 in proper order, the cereal that the particle diameter is greater than the diameter of 7 sieve meshes of first screen cloth stops on first screen cloth 7, and the cereal that the particle diameter is greater than 8 sieve mesh diameters of second screen cloth stops on second screen cloth 8, and the cereal that the particle diameter is less than 8 sieve mesh diameters of second screen cloth falls into 2 bottoms of screen drum.
As shown in fig. 1, the first collecting cylinder 3 is arranged below the feeding chute 1, the plurality of screening cylinders 2 all penetrate through the first collecting cylinder 3, the screening cylinders 2 are fixedly connected with the first collecting cylinder 3, and the first screening holes 9 of the plurality of screening cylinders 2 are all communicated with the first collecting cylinder 3. The bottom end of the first collecting cylinder 3 is obliquely arranged, and a first discharge hole 31 is arranged at the bottom end of the first collecting cylinder 3, and a third electromagnetic valve is arranged in the first discharge hole 31. By setting, the first electromagnetic valve can be opened at regular time, the first screen 7 is arranged to be conical, and after the first electromagnetic valve is opened, grains stacked on the first screen 7 enter the first collecting cylinder 3 from the first screening holes 9; through setting up, the third solenoid valve can be regularly opened, and when opening, the cereal in the first surge drum 3 is followed first discharge gate 31 discharge and is collected.
As shown in fig. 1, the second collecting cylinder 4 is disposed below the first collecting cylinder 3, the plurality of screening cylinders 2 all penetrate through the second collecting cylinder 4, the screening cylinders 2 are fixedly connected with the second collecting cylinder 4, and the second screening holes 10 of the plurality of screening cylinders 2 are all communicated with the second collecting cylinder 4. The bottom end of the second collecting cylinder 4 is obliquely arranged, and the bottom end of the second collecting cylinder 4 is provided with a second discharge hole 32, and a fourth electromagnetic valve is installed in the second discharge hole 32. By setting, the second electromagnetic valve can be opened at regular time, the second screen 8 is set to be conical, and after the second electromagnetic valve is opened, grains stacked on the second screen 8 enter the second collecting cylinder 4 from the second screening holes 10; through setting up, fourth solenoid valve can be regularly opened, and when opening, the cereal in the second surge drum 4 is followed second discharge gate 32 and is discharged the collection.
As shown in fig. 1, the third collecting cylinder 5 is arranged below the second collecting cylinder 4, the bottom ends of the screening cylinders 2 are connected with the third collecting cylinder 5, and the screening cylinders 2 are communicated with the third collecting cylinder 5. The bottom end of the third collecting cylinder 5 is obliquely arranged, and the bottom end of the third collecting cylinder 5 is provided with a third discharge hole 33 and a fifth electromagnetic valve is arranged in the third discharge hole 33. Grain with the grain diameter smaller than the diameter of the sieve pores of the second screen 8 falls into the third collecting cylinder 5, and through setting, the fifth electromagnetic valve can be opened at regular time, and when the grain is opened, the grain in the third collecting cylinder 5 is discharged and collected from the third discharge hole 33.
Specifically, as shown in fig. 3, a plurality of vertically arranged first chutes 11 are circumferentially formed in the inner wall of the screening drum 2 at a position close to the first screen 7, a vertically arranged first guide rod 12 is installed in the first chute 11, a first slider 13 is installed on the first guide rod 12 in a sliding fit manner, the first slider 13 is connected with the edge of the first screen 7, and a first spring 14 is sleeved on the first guide rod 12 at a position below the first slider 13. Through the above arrangement, when feeding, the first screen 7 is shaken up and down due to the weight of grains, so that the screening effect is improved.
Specifically, as shown in fig. 4, a plurality of second chutes 15 which are vertically arranged are circumferentially formed in the inner wall of the screening cylinder 2 at a position close to the second screen 8, a second guide rod 16 which is vertically arranged is installed in the second chute 15, a second slider 17 is installed on the second guide rod 16 in a sliding fit manner, the second slider 17 is connected with the edge of the second screen 8, and a second spring 18 is sleeved on the second guide rod 16 at a position below the second slider 17. Through the above arrangement, when feeding, the second screen 8 can shake up and down due to the weight of grains, so that the screening effect is improved.
Specifically, as shown in fig. 1, a hot air inlet pipe 27 is installed on the third collecting cylinder 5, a first induced air pipe 28 communicated with the second collecting cylinder 4 is installed on one side of the third collecting cylinder 5, which is far away from the hot air inlet pipe 27, a second induced air pipe 29 communicated with the first collecting cylinder 3 is installed on one side of the second collecting cylinder 4, which is far away from the first induced air pipe 28, and an air outlet pipe 30 is installed on one side of the first collecting cylinder 3, which is far away from the second induced air pipe 29. Through the arrangement, hot air introduced from the hot air inlet pipe can dry grains in the third collecting cylinder 5, the second collecting cylinder 4 and the first collecting cylinder 3 in sequence.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (8)

1. A grain quantitative screening device is characterized by comprising a feeding tank, a plurality of screening drums, a first collecting drum, a second collecting drum and a third collecting drum; wherein:
the bottom end of the feeding groove is provided with a plurality of feeding holes, and the bottom end of the feeding groove is provided with a quantitative feeding assembly for quantitatively feeding materials into the feeding holes;
the screening cylinders are vertically arranged below the feeding groove, the top ends of the screening cylinders are connected with the bottom of the feeding groove, and the screening cylinders are respectively communicated with the feeding holes; a first screen and a second screen which are arranged up and down are arranged in the screening cylinder, the diameter of a screen hole of the first screen is larger than that of a screen hole of the second screen, a first screening hole is formed in the position, close to the upper part of the first screen, on the side wall of the screening cylinder, a first electromagnetic valve is arranged in the first screening hole, a second screening hole is formed in the position, close to the upper part of the second screen, on the side wall of the screening cylinder, and a second electromagnetic valve is arranged in the second screening hole;
the first collecting cylinder is arranged below the feeding groove, the screening cylinders penetrate through the first collecting cylinder and are fixedly connected with the first collecting cylinder, and the first screening holes of the screening cylinders are communicated with the first collecting cylinder;
the second collecting cylinder is arranged below the first collecting cylinder, the screening cylinders penetrate through the second collecting cylinder and are fixedly connected with the second collecting cylinder, and second screening holes of the screening cylinders are communicated with the second collecting cylinder;
the third surge drum sets up in second surge drum below, and a plurality of screening drum bottoms all are connected with the third surge drum and the screening drum all communicates with the third surge drum.
2. The quantitative grain screening device according to claim 1, wherein a plurality of vertically arranged first chutes are circumferentially formed in the inner wall of the screening cylinder at a position close to the first screen, vertically arranged first guide rods are installed in the first chutes, first sliding blocks are installed on the first guide rods in a sliding fit manner, the first sliding blocks are connected with the edge of the first screen, and first springs are sleeved on the first guide rods at positions below the first sliding blocks.
3. The quantitative grain screening device according to claim 1, wherein a plurality of second chutes which are vertically arranged are circumferentially formed in the inner wall of the screening cylinder at a position close to the second screen, a second guide rod which is vertically arranged is installed in the second chute, a second sliding block is installed on the second guide rod in a sliding fit manner, the second sliding block is connected with the edge of the second screen, and a second spring is sleeved on the second guide rod at a position below the second sliding block.
4. The grain quantitative screening device according to any one of claims 1 to 3, wherein the quantitative feeding assembly comprises a rack, a driving member and a plurality of gears, a linear guide rail is arranged at the bottom end of the feeding chute at one side of the plurality of feeding holes, two ends of the linear guide rail are provided with stop blocks, the rack is slidably mounted on the linear guide rail, and the driving member is used for driving the rack to move back and forth on the linear guide rail; a plurality of gears set up and a plurality of gears all with rack toothing with a plurality of feed ports one-to-one respectively, and the gear is close to feed port one side and is connected with the connecting rod, connecting rod and the round pin axle normal running fit who fixes in the feed chute bottom, and the connecting rod is kept away from gear one end and is connected with the sprue that is used for blockking up the feed port.
5. The quantitative grain screening device according to any one of claims 1 to 3, wherein a hot air inlet pipe is installed on the third collecting cylinder, a first induced air pipe communicated with the second collecting cylinder is installed on the side, away from the hot air inlet pipe, of the third collecting cylinder, a second induced air pipe communicated with the first collecting cylinder is installed on the side, away from the first induced air pipe, of the second collecting cylinder, and an air outlet pipe is installed on the side, away from the second induced air pipe, of the first collecting cylinder.
6. The quantitative grain screening device according to any one of claims 1 to 3, wherein the bottom end of the first collecting barrel is obliquely arranged, the bottom end of the first collecting barrel is provided with a first discharge port, and a third electromagnetic valve is installed in the first discharge port.
7. The quantitative grain screening device according to any one of claims 1 to 3, wherein the bottom end of the second collecting cylinder is obliquely arranged and provided with a second discharge port, and a fourth electromagnetic valve is installed in the second discharge port.
8. The quantitative grain screening device according to any one of claims 1 to 3, wherein the bottom end of the third collecting barrel is obliquely arranged, the bottom end of the third collecting barrel is provided with a third discharge hole, and a fifth electromagnetic valve is installed in the third discharge hole.
CN202110121349.0A 2021-01-28 2021-01-28 Cereal quantitative screening device Pending CN112934672A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110121349.0A CN112934672A (en) 2021-01-28 2021-01-28 Cereal quantitative screening device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110121349.0A CN112934672A (en) 2021-01-28 2021-01-28 Cereal quantitative screening device

Publications (1)

Publication Number Publication Date
CN112934672A true CN112934672A (en) 2021-06-11

Family

ID=76238991

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110121349.0A Pending CN112934672A (en) 2021-01-28 2021-01-28 Cereal quantitative screening device

Country Status (1)

Country Link
CN (1) CN112934672A (en)

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