CN110813709A - Manual operation method for screening multi-level particulate matters at one time - Google Patents

Manual operation method for screening multi-level particulate matters at one time Download PDF

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Publication number
CN110813709A
CN110813709A CN201911092892.1A CN201911092892A CN110813709A CN 110813709 A CN110813709 A CN 110813709A CN 201911092892 A CN201911092892 A CN 201911092892A CN 110813709 A CN110813709 A CN 110813709A
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CN
China
Prior art keywords
grading
shaking
sieve
sieves
container
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Pending
Application number
CN201911092892.1A
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Chinese (zh)
Inventor
曲祥雯
宋戈
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Shandong University of Science and Technology
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Shandong University of Science and Technology
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Priority to CN201911092892.1A priority Critical patent/CN110813709A/en
Publication of CN110813709A publication Critical patent/CN110813709A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/42Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B1/00Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46Constructional details of screens in general; Cleaning or heating of screens
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B07SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07BSEPARATING 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
    • B07B2201/00Details applicable to machines for screening using sieves or gratings
    • B07B2201/04Multiple deck screening devices comprising one or more superimposed screens

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  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses a manual operation method for screening multilevel particulate matters at one time, which is characterized in that firstly, an artificial shaking device is manufactured, and the artificial shaking device comprises a supporting device and a shaking container; secondly, manufacturing a series of grading sieves; the periphery of the top surface of the screen frame is required to be matched with the periphery of the inner wall of the shaking container; manufacturing the screen mesh into a plurality of grading screens with different grades according to the mesh sizes; selecting several grading sieves from the series of grading sieves according to the grading requirements of the materials, and placing the grading sieves in a shaking container from small to large according to the sizes of meshes; and fourthly, putting the material to be screened into the uppermost grading sieve, and holding the hand crank to shake back and forth, thereby screening out the particles with different particle sizes.

Description

Manual operation method for screening multi-level particulate matters at one time
Technical Field
The present invention relates to screening technology.
Background
At present, particulate matters with different particle sizes are required to be prepared in a laboratory or a household workshop, and the crushed particulate matters are classified according to different particle sizes for different tests or applications. For example, in a laboratory concrete index simulation experiment, sands with different particle sizes are needed for index comparison; for example, some household workshops make corn grits with different particle sizes according to dietary habits, make feeds with different particle sizes according to the sizes of fishes, and the like. At present, the particles with the required particle size can be separated by manually sieving the particles with sieves with different meshes or sieving the particles once and once. The screening mode is old, wastes manpower and material resources, has low efficiency, and has dust flying to affect the indoor environmental sanitation and the body health of workers. If the industrial electric sieve needs a power supply, the electric sieve is limited by occasions and the existence of power, and the vibration noise of the motor is large, so that the work of other offices or the silence of a four-adjacent house is influenced, and the electric sieve is not suitable for being used in laboratories or household workshops. The existing electric sieves are all single-layer, and the desired particle size can be obtained by changing sieves with different meshes for several times. There is therefore a great need for a simple and easy screening method which does not use electricity.
Disclosure of Invention
The invention aims to solve the problems and provides a simple and feasible manual operation method for screening multi-level particles at one time.
The technical scheme is as follows:
a manual operation method for screening multi-level particles at one time is characterized in that,
firstly, manufacturing an artificial shaking device, wherein the artificial shaking device comprises a supporting device and a shaking container; the supporting device is characterized in that two symmetrical triangular supports are arranged on the base, a shaft seat is arranged on the tops of the triangular supports, and a supporting shaft is arranged on the shaft seat; the shaking container is a barrel-shaped shell, the bottom of the shaking container is funnel-shaped, and a cock is arranged at the lower opening of the funnel; the upper parts of two sides of the outer wall of the shaking container are provided with symmetrical shaft holes, and crank arms are arranged in the shaft holes; the crank arms are fixed on the supporting shafts of the triangular supports, so that the shaking container is hung on the triangular supports through the crank arms on the two sides; then fixing an upper push-pull handle on the front/back surface of the outer wall of the shaking container; a hand crank can be arranged on the supporting shaft on one side;
secondly, manufacturing a series of grading sieves; the series of grading sieves consist of a sieve frame and a sieve mesh, and the periphery of the top surface of the sieve frame is required to be matched with the periphery of the inner wall of the shaking container; the screen mesh is manufactured into a plurality of grading screens with different grades according to the sizes of the openings;
selecting several grading sieves meeting the requirement of the particle size from the series of grading sieves according to the grading requirement of the materials, and placing the grading sieves in a shaking container layer by layer from small to large according to the mesh size;
placing the materials to be screened into the grading sieve at the uppermost layer, holding the push-pull handle to push and pull forwards or hold the hand handle to shake back and forth, shaking the shaking container to shake back and forth in the push-pull or shaking process, allowing the particles smaller than the sieve pores to leak downwards from the series of grading sieves step by step, and leaving the particles larger than the grading meshes in the grading sieves at all levels, thereby screening out the particles with different particle sizes; stopping shaking when the oversize in the first layer of sieve does not leak fine particles any more;
fifthly, taking out the grading sieves layer by layer from the shaking container, discarding oversize materials of the sieve at the uppermost layer, and obtaining required particle materials with different particle sizes from the sieves at all levels below the uppermost layer;
sixthly, opening the cock of the funnel to discharge the undersize materials and abandon the undersize materials.
In order to prevent dust from rising, a cover is arranged on the top layer screen.
In order to reduce the supporting force of the screen, a supporting net is arranged below the screen.
In the technical scheme of the invention, the amplitude F of the shaking container to shake back and forth is related to the length L of the crank arm, and F = 2L; the general shaking amplitude F =8-12cm meets the sieving requirement, and the length L =4-6 cm of the crank arm is calculated according to the calculation.
In the technical scheme of the invention, the length of the hand crank is preferably 20-30cm according to the hand-operated arm comfort level of people.
The invention has the advantages that 1, after massive oversize products at the uppermost layer and undersize products in the funnel are removed through a series of grading sieves, a plurality of grades of particles can be separated at one time for different use requirements; 2. because the screening is carried out under the closed condition, the dust does not fly, and the indoor environmental sanitation and the body health of workers are protected; 3. the manual screening machine has the advantages that the manual screening machine is simple in manual small-sized equipment operation, does not need a power supply, is not limited by occasions and the existence of power, does not have motor noise, does not influence a four-adjacent-eight house, reduces the labor intensity of pure manual screening and is high in efficiency.
Drawings
FIG. 1 is a schematic front view of the present invention; FIG. 2 is a right side view of the present invention; FIG. 3 is a top view of FIG. 1 showing only the slosh container, with portions of the base and cover omitted; figure 4 is a front view of the present sizing screen.
The illustration shows that 1, a base, 2, a tripod, 3, a shaking container, 4, a hand crank, 4a, a push-pull handle, 5, a support shaft, 6, a crank arm, 7, a shaft hole, 8, a top layer sieve, 9, a two-layer sieve, 10, a three-layer sieve, 11, a bottom layer sieve, 12, a funnel, 13, a cock, 14, a cover, 15, a screen mesh, 16, a pressing strip, 17, a screw, 18, a screen frame, 19, a spanner, 20 and a supporting net.
Detailed Description
The following describes an embodiment of the present invention with reference to the drawings, wherein the embodiment is to separate particles of 10-20 mesh, 20-30 mesh, 30-40 mesh, and three different particle sizes at a time.
A manual operation method for screening multi-level particles at one time is characterized in that,
firstly, manufacturing an artificial shaking device, wherein the artificial shaking device comprises a supporting device and a shaking container 3 as shown in fig. 1, fig. 2 and fig. 3; the supporting device is characterized in that two symmetrical triangular supports 2 are arranged on a base 1, a shaft seat is arranged on the top of each triangular support 2, and a supporting shaft 5 is arranged on each shaft seat; the shaking container 3 is a barrel-shaped shell, the bottom of the shaking container is provided with a funnel 12, and a cock 13 is arranged at the lower opening of the funnel 12; the upper parts of two sides of the outer wall of the shaking container 3 are provided with symmetrical shaft holes 7, and crank arms 6 are arranged in the shaft holes 7; the crank arms 6 are fixed on the supporting shafts 5 of the tripod, so that the shaking container 3 is hung on the tripod 2 through the crank arms 6 on the two sides; a hand crank 4 is arranged on the supporting shaft at one side, or a push-pull handle 4a is fixed in front of/behind the outer wall of the shaking container 3;
secondly, manufacturing a series of grading sieves; the series of grading sieves are shown in FIG. 4 and comprise a sieve frame 18 and a sieve screen 15, wherein the sieve screen 15 is fixed at the bottom of the sieve frame 18 through a batten 16 by a screw 17; the periphery of the top surface of the screen frame 18 is required to be matched with the periphery of the inner wall of the shaking container 3; according to the classification requirements of materials, the series of classification sieves are made into four types, the mesh sizes of the screen meshes 15 are required to be 10 meshes, 20 meshes, 30 meshes and 40 meshes respectively, and the 10 meshes are called as a top layer sieve 8, a two layer sieve 9, a three layer sieve 10 and a bottom layer sieve 11;
thirdly, the bottom layer sieve 11, the three layer sieve 10, the two layer sieve 9 and the top layer sieve are sequentially placed in the shaking container 3 from bottom to top;
placing the materials to be screened into the uppermost top layer sieve 8, holding the hand crank 4 to shake back and forth, or holding the push-pull handle 4a to push and pull back and forth, shaking the shaking container 3 back and forth in the shaking or pushing and pulling process, and allowing the particles smaller than the sieve pores to sequentially leak downwards from the top layer sieve 8, the second layer sieve 9, the third layer sieve 10 and the bottom layer sieve 11 step by step and respectively remain in the second layer sieve 9, the third layer sieve 10 and the bottom layer sieve 11 according to the particle size; stopping shaking when the oversize in the top layer screen does not leak fine particles any more;
fifthly, taking out each grading sieve layer by layer from the shaking container 3, discarding oversize materials of the top layer sieve 8, and obtaining particle materials of 10-20 meshes, 20-30 meshes and 30-40 meshes from the second layer sieve 9, the third layer sieve 10 and the bottom layer sieve 11;
sixthly, opening the cock 13 of the hopper 12 to discharge the undersize materials and abandon the undersize materials.
As shown in fig. 1, a cover 14 is provided on the top deck screen in order to prevent dust. In order to reduce the supporting force of the screen 15, a supporting net 20 is provided under the screen 15, and a wrench 19 is provided on the screen frame 18 for facilitating the handling.
In the technical scheme of the invention, the length L =4-6 cm of the crank arm, and the length of the hand crank is preferably 20-30 cm.

Claims (5)

1. The manual operation method for screening multi-level particles at one time is characterized in that:
firstly, manufacturing an artificial shaking device, wherein the artificial shaking device comprises a supporting device and a shaking container; the supporting device is characterized in that two symmetrical triangular supports are arranged on the base, a shaft seat is arranged on the tops of the triangular supports, and a supporting shaft is arranged on the shaft seat; the shaking container is a barrel-shaped shell, the bottom of the shaking container is funnel-shaped, and a cock is arranged at the lower opening of the funnel; the upper parts of two sides of the outer wall of the shaking container are provided with symmetrical shaft holes, and crank arms are arranged in the shaft holes; the crank arms are fixed on the supporting shafts of the triangular supports, so that the shaking container is hung on the triangular supports through the crank arms on the two sides; then fixing an upper push-pull handle on the front/back surface of the outer wall of the shaking container; a hand crank can be arranged on the supporting shaft on one side;
secondly, manufacturing a series of grading sieves; the series of grading sieves consist of a sieve frame and a sieve mesh, and the periphery of the top surface of the sieve frame is required to be matched with the periphery of the inner wall of the shaking container; the screen mesh is manufactured into a plurality of grading screens with different grades according to the sizes of the openings;
thirdly, selecting several grading sieves meeting the requirement of the particle size from the series of grading sieves according to the grading requirement of the materials, and placing the grading sieves in a shaking container layer by layer from small to large according to the mesh sizes;
fourthly, placing the materials to be screened into the grading sieve at the uppermost layer, holding the push-pull handle to push and pull forwards or hold the hand handle to shake back and forth, shaking the shaking container to shake back and forth in the push-pull or shaking process, enabling the particles smaller than the sieve pores to leak downwards from the series of grading sieves step by step, and leaving the particles larger than the grading sieve pores in the grading sieves at all levels, thereby screening the particles with different particle sizes; stopping shaking when the oversize in the first layer of sieve does not leak fine particles any more;
fifthly, taking out the grading sieves layer by layer from the shaking container, discarding oversize materials of the sieve at the uppermost layer, and obtaining required particle materials with different particle sizes from the sieves at all levels below the uppermost layer;
and sixthly, opening a cock of the hopper to discharge undersize materials and abandoning the undersize materials.
2. The method of claim 1, wherein a support screen is positioned below the screen.
3. The method of claim 1, wherein a cover is provided over the top screen.
4. The method of claim 1, wherein the series of sizing screens comprises a screen frame and a screen mesh, the screen mesh being secured to the bottom of the screen frame by a bead and screws.
5. The method of claim 1, wherein a spanner is provided on the frame.
CN201911092892.1A 2019-11-11 2019-11-11 Manual operation method for screening multi-level particulate matters at one time Pending CN110813709A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911092892.1A CN110813709A (en) 2019-11-11 2019-11-11 Manual operation method for screening multi-level particulate matters at one time

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Application Number Priority Date Filing Date Title
CN201911092892.1A CN110813709A (en) 2019-11-11 2019-11-11 Manual operation method for screening multi-level particulate matters at one time

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CN110813709A true CN110813709A (en) 2020-02-21

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Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5275293A (en) * 1992-12-14 1994-01-04 Crider Ronald L Rock crusher aggregate screen repair accessory apparatus and method of complying to gradation specifications
DE20219610U1 (en) * 2002-12-13 2003-03-13 GKM Siebtechnik GmbH, 76669 Bad Schönborn Lifting device for lifting of at least individual parts of sieve construction of tumbling sieving machine has lifting unit connected to holder for tensioning means on base frame of sieving machine
CN203124241U (en) * 2013-01-24 2013-08-14 中国水产科学研究院珠江水产研究所 Sieving device separating sediment with different grain diameters
CN103433214A (en) * 2013-09-05 2013-12-11 天津聚贤达科技有限公司 Particle material classification sorting device
CN206262843U (en) * 2016-10-12 2017-06-20 武威小林商贸有限责任公司 A kind of vibrating screener
CN206652695U (en) * 2017-03-08 2017-11-21 贵州省贵定县古镇香粮油有限公司 A kind of household hand cereal thickness separator
CN206981185U (en) * 2017-04-28 2018-02-09 三明学院 Horizontal Sand screen
CN107960673A (en) * 2017-11-29 2018-04-27 周兰芝 A kind of device for cleaning and screening for apple
CN109332165A (en) * 2018-12-06 2019-02-15 贺州学院 Use for laboratory multipass sort sieve
CN209156385U (en) * 2018-11-22 2019-07-26 山东火龙商贸有限公司 A kind of portable sieve friction prevention device
WO2019165086A1 (en) * 2018-02-21 2019-08-29 Koerner Lloyd Multilevel sieve system and method of use

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5275293A (en) * 1992-12-14 1994-01-04 Crider Ronald L Rock crusher aggregate screen repair accessory apparatus and method of complying to gradation specifications
DE20219610U1 (en) * 2002-12-13 2003-03-13 GKM Siebtechnik GmbH, 76669 Bad Schönborn Lifting device for lifting of at least individual parts of sieve construction of tumbling sieving machine has lifting unit connected to holder for tensioning means on base frame of sieving machine
CN203124241U (en) * 2013-01-24 2013-08-14 中国水产科学研究院珠江水产研究所 Sieving device separating sediment with different grain diameters
CN103433214A (en) * 2013-09-05 2013-12-11 天津聚贤达科技有限公司 Particle material classification sorting device
CN206262843U (en) * 2016-10-12 2017-06-20 武威小林商贸有限责任公司 A kind of vibrating screener
CN206652695U (en) * 2017-03-08 2017-11-21 贵州省贵定县古镇香粮油有限公司 A kind of household hand cereal thickness separator
CN206981185U (en) * 2017-04-28 2018-02-09 三明学院 Horizontal Sand screen
CN107960673A (en) * 2017-11-29 2018-04-27 周兰芝 A kind of device for cleaning and screening for apple
WO2019165086A1 (en) * 2018-02-21 2019-08-29 Koerner Lloyd Multilevel sieve system and method of use
CN209156385U (en) * 2018-11-22 2019-07-26 山东火龙商贸有限公司 A kind of portable sieve friction prevention device
CN109332165A (en) * 2018-12-06 2019-02-15 贺州学院 Use for laboratory multipass sort sieve

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