CN112317302A - Ore sand screening plant convenient to screening - Google Patents

Ore sand screening plant convenient to screening Download PDF

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Publication number
CN112317302A
CN112317302A CN202011047660.7A CN202011047660A CN112317302A CN 112317302 A CN112317302 A CN 112317302A CN 202011047660 A CN202011047660 A CN 202011047660A CN 112317302 A CN112317302 A CN 112317302A
Authority
CN
China
Prior art keywords
shell
screening
base
fixedly arranged
top end
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.)
Withdrawn
Application number
CN202011047660.7A
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Chinese (zh)
Inventor
不公告发明人
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202011047660.7A priority Critical patent/CN112317302A/en
Publication of CN112317302A publication Critical patent/CN112317302A/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B07B1/28Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
    • B07B1/34Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens jigging or moving to-and-fro perpendicularly or approximately perpendiculary to the plane of the screen
    • 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

Abstract

The invention discloses a mineral sand screening device convenient for screening, which comprises: a base; the device comprises a shell, a base and a base, wherein the shell is downwards inclined from right to left, four corners of the bottom end of the shell are fixedly provided with first supporting legs, and the first supporting legs are fixedly arranged at the top end of the base; the supporting frame is fixedly arranged at the top end of the base; the feeding hopper is fixedly arranged at the top end of the inner side of the base; the vibration screening mechanism is arranged in the inner cavity of the shell; and the conveying mechanism is arranged at the top end of the base. This ore sand screening plant convenient to screening can realize that first screening board or second screening board sieve the ore sand, and the ore sand that is not sieved is discharged from one side under the effect of slope, is convenient for drop, and the ore sand that sieves drops gradually at the upper surface of electric conveyor belt, can be with falling the ore sand on electric conveyor belt to eminence transmission through being provided with conveying mechanism to can improve the discharge position of ore sand, and then the ore sand that can be convenient for is collected.

Description

Ore sand screening plant convenient to screening
Technical Field
The invention relates to the technical field of ore sand screening, in particular to an ore sand screening device convenient to screen.
Background
The sieving machine is a vibrating sieving mechanical device which utilizes the relative movement of bulk materials and a sieve surface to lead partial particles to penetrate through sieve pores and divide materials such as sand, gravel, broken stone and the like into different grades according to the particle size, ore sand is sand-shaped mineral which is mined from an ore deposit or is prepared by lean ore through ore dressing, belongs to the machine-made sand and has the same application as common sand, the edge angle of the ore sand is clear, the mud content is higher than river sand, the surface is rough, and more organic impurities are contained, but the edge angle of the ore sand is clear, so that the hanging membrane dirt-intercepting capability is stronger, the Mohs hardness is also high, and the back washing is not influenced;
at present when carrying out the screening to the ore sand, the ore sand that is not sieved is difficult for dropping, and the ore sand that sieves out directly drops through the screen cloth, leads to the ejection of compact position of ore sand lower to be not convenient for collect the ore sand.
Disclosure of Invention
The invention aims to provide an ore sand screening device convenient to screen, and aims to solve the problems that in the background technology, ore sand which is not screened is not easy to fall off, and the screened ore sand directly falls off through a screen, so that the ore sand is inconvenient to collect due to the fact that the discharging position of the ore sand is low.
In order to achieve the purpose, the invention provides the following technical scheme: a sand screening device facilitating screening, comprising:
a base;
the device comprises a shell, a base and a base, wherein the shell is downwards inclined from right to left, four corners of the bottom end of the shell are fixedly provided with first supporting legs, and the first supporting legs are fixedly arranged at the top end of the base;
the supporting frame is fixedly arranged at the top end of the base;
the feeding hopper is fixedly arranged at the top end of the inner side of the base;
the vibration screening mechanism is arranged in the inner cavity of the shell;
and the conveying mechanism is arranged at the top end of the base.
Preferably, the vibratory screening mechanism includes: the first screening plate is inserted into the inner cavity of the shell, one sides of the shell and the first screening plate are both in a through shape, and one side of the first screening plate extends out of one side of the shell; the four corners of the bottom end of the first screening plate are fixedly provided with first guide rods, and the first guide rods are in matched splicing with the top end of the inner cavity of the shell and extend out of the lower surface of the shell; the limiting block is fixedly arranged at the bottom end of the first guide rod; the spring, with the outer wall of stopper cup joints mutually, just the spring is fixed to be set up first screening board with between the inner chamber of casing.
Preferably, the vibrating screening mechanism further comprises: the top ends of the front side and the rear side of the first strip-shaped shell are fixedly provided with connecting plates arranged along the left-right direction; the first motor is fixedly arranged on the front side of the shell; the output end of the motor extends into the inner cavity of the shell and is fixedly provided with a cam.
Preferably, the through-hole has been seted up to the bottom of casing, just the bottom mounting of casing is provided with the baffle, just the baffle is from last to the inboard slope setting down.
Preferably, the conveying mechanism includes: the number of the strip-shaped shells is two, second supporting legs are fixedly arranged on the left side and the right side of the bottom end of each strip-shaped shell, and the second supporting legs are fixedly arranged at the top end of the base; the electric conveying belt is fixedly arranged on the inner side of the strip-shaped shell; the material collecting box is fixedly arranged at the top end of the base, and the material collecting box is located under one side of the electric conveying belt.
Preferably, the electric conveyor belt is arranged in an upward inclined manner from left to right, and the electric conveyor belt is located under the two baffles.
The ore sand screening device convenient to screen has the beneficial effects that:
1. according to the invention, the vibrating screening mechanism is arranged to control the first screening plate in the first embodiment to vibrate up and down or control the second screening plate in the second embodiment to vibrate back and forth, so that ore sand can be screened by the first screening plate or the second screening plate, the ore sand which is not screened is discharged from one side under the action of inclination, the ore sand falls conveniently, and the screened ore sand falls on the upper surface of the electric conveyor belt gradually;
2. the conveying mechanism is arranged in the invention, so that the ore sand falling on the electric conveying belt can be transferred to a high position, the discharging position of the ore sand can be improved, and the ore sand can be conveniently collected.
Drawings
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
FIG. 2 is a front cross-sectional view of the housing of FIG. 1 in accordance with the present invention;
FIG. 3 is a left side cross-sectional view of the housing of FIG. 1 in accordance with the present invention;
FIG. 4 is an exploded view of a vibratory screening mechanism according to a second embodiment of the present invention;
fig. 5 is a right side sectional view of the housing 2 of fig. 4 in accordance with the present invention.
In the figure: 1. the base, 2, the casing, 3, first supporting leg, 4, the support frame, 5, the feeder hopper, 6, vibration screening mechanism, 61, first screening board, 62, first guide arm, 63, the stopper, 64, the spring, 65, the connecting plate, 66, first motor, 67, the cam, 601, the second screening board, 602, the second guide arm, 603, the second motor, 604, the rotor plate, 605, the bar post, 606, the bar hole, 607, insert the post, 7, conveying mechanism, 71, the bar shell, 72, the second supporting leg, 73, electronic conveyer belt, 74, the case that gathers materials, 8, the through-hole, 9, the baffle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows: referring to fig. 1-3, the present invention provides a technical solution: a sand screening device facilitating screening, comprising: base 1, casing 2, first supporting leg 3, support frame 4, feeder hopper 5, shale shaker divides mechanism 6 and conveying mechanism 7, casing 2 from the right side to left downward sloping setting, the bottom four corners of casing 2 is all fixed to be provided with first supporting leg 3, and first supporting leg 3 is fixed to be set up on the top of base 1, support frame 4 is fixed to be set up on the top of base 1, feeder hopper 5 is fixed to be set up on the inboard top of base 1, shale shaker divides mechanism 6 to set up the inner chamber at casing 2, conveying mechanism 7 sets up the top at base 1.
Preferably, the vibrating and screening mechanism 6 further includes: the first screening plate 61 is inserted into the inner cavity of the shell 2, the shell 2 and one side of the first screening plate 61 are both in a through shape, one side of the first screening plate 61 extends out of one side of the shell 2, a screen is arranged at the bottom end of the inner side of the first screening plate 61, ore sand can be moved out through one side of the first screening plate 61, the first guide rods 62 are fixedly arranged at four corners of the bottom end of the first screening plate 61, the first guide rods 62 are inserted into the top end of the inner cavity of the shell 2 in a matching manner and extend out of the lower surface of the shell 2, the first screening plate 61 can stably move up and down under the restriction of the first guide rods 62, the limiting blocks 63 are fixedly arranged at the bottom ends of the first guide rods 62, the limiting blocks 63 can prevent the first guide rods 62 from being separated from the bottom end of the inner side of the first screening plate 61, the springs 64 are sleeved with the outer walls of the limiting blocks 63, and the springs 64 are fixedly arranged between the first screening plate 61 and the inner cavity of the shell 2, the spring 64 may support the first sifting plate 61 and may increase the oscillation frequency of the first sifting plate 61 by the elastic force of the spring 64.
Preferably, the vibrating and screening mechanism 6 further includes: the connecting plate 65, the first motor 66 and the cam 67 are arranged at the top ends of the front side and the rear side of the first bar-shaped shell 61, the connecting plate 65 is arranged along the left-right direction, the first motor 66 is fixedly arranged at the front side of the shell 2, the first motor 66 is in the prior art, the cam 67 can be driven by the first motor 66 to rotate clockwise around the output end of the first motor 66, when the hub end far away from the cam 67 rotates to be in contact with the bottom end of the connecting plate 65, the outer wall of the hub end far away from the cam 67 can push the connecting plate 65 to move upwards so as to drive the first sieving plate 61 to move vertically upwards under the limitation of the first guide rod 62, and the output end of the motor 66 extends into the inner cavity of the shell 2 and is fixedly.
As a preferred scheme, furthermore, the bottom end of the casing 2 is provided with a through hole 8, the bottom end of the casing 2 is fixedly provided with a baffle 9, the baffle 9 is obliquely arranged from top to bottom towards the inner side, and the screened ore can stably and accurately fall on the electric conveyor belt 73 by the baffle 9.
Preferably, the conveying mechanism 7 further includes: strip shell 71, second supporting leg 72, electric conveyor belt 73 and collection case 74, the quantity of strip shell 71 is two, the bottom left and right sides of strip shell 71 all fixes and is provided with second supporting leg 72, and the fixed top that sets up at base 1 of second supporting leg 72, electric conveyor belt 73 is fixed to be set up in the inboard of strip shell 71, electric conveyor belt 73 is prior art, electric conveyor belt 73 can transmit the ore sand that falls on its upper surface, the fixed top that sets up at base 1 of collection case 74, and collection case 74 is located under one side of electric conveyor belt 73, collection case 74 can be used to collect the good ore sand of screening.
Preferably, the electric conveyor belt 73 is arranged obliquely from left to right, the electric conveyor belt 73 is positioned right below the two baffles 9, and the ore sand can be conveyed obliquely upwards under the conveying of the electric conveyor belt 73, so that the ore sand discharging position can be improved.
Example two: referring to fig. 1, fig. 4 and fig. 5, the present invention provides a technical solution: a sand screening device facilitating screening, comprising: base 1, casing 2, first supporting leg 3, support frame 4, feeder hopper 5, shale shaker divides mechanism 6 and conveying mechanism 7, casing 2 from the right side to left downward sloping setting, the bottom four corners of casing 2 is all fixed to be provided with first supporting leg 3, and first supporting leg 3 is fixed to be set up on the top of base 1, support frame 4 is fixed to be set up on the top of base 1, feeder hopper 5 is fixed to be set up on the inboard top of base 1, shale shaker divides mechanism 6 to set up the inner chamber at casing 2, conveying mechanism 7 sets up the top at base 1.
Preferably, the vibrating and screening mechanism 6 further includes: the second screening plate 601, the second guide rod 602, the second motor 603, the rotating plate 604, the strip-shaped column 605, the strip-shaped hole 606 and the inserting column 607, the second screening plate 601 is inserted into the inner cavity of the housing 2, one side of the housing 2 and the second screening plate 601 are both through, one side of the second screening plate 601 extends out of one side of the housing 2, the second guide rod 602 is fixedly arranged at each of the left and right ends of the front and back sides of the second screening plate 601, the second guide rod 602 is inserted into the outer wall of the housing 2 in a matching manner, the second guide rod 602 extends out of the outer wall of the housing 2, the second screening plate 601 can move back and forth stably under the restriction of the second guide rod 602, the second motor 603 is fixedly arranged at one side of the housing 2, the second motor 603 is the prior art, the second motor 603 can drive the rotating plate 604 to rotate clockwise around its own axis, the motor model according with the present case can be used, the output end of the second motor 603 extends into the inner cavity of the housing 2 and is fixedly arranged with, bar post 605 is along the fixed one side that sets up at second screening board 601 of upper and lower direction, bar hole 606 has been seted up to one side of bar post 605, the fixed post 607 of inserting that is provided with in one side of rotor plate 604, it can be clockwise cylinder motion under the drive of rotor plate 604 to insert the post 607, and insert the inner chamber looks adaptation grafting of post 607 and bar hole 606, when inserting post 607 when rotating to the front side or rear side, insert the inner wall of post 607 accessible promotion bar hole 606 so that bar post 605 reciprocating motion, thereby can drive second screening board 610 reciprocating motion.
As a preferred scheme, furthermore, the bottom end of the casing 2 is provided with a through hole 8, the bottom end of the casing 2 is fixedly provided with a baffle 9, the baffle 9 is obliquely arranged from top to bottom towards the inner side, and the screened ore can stably and accurately fall on the electric conveyor belt 73 by the baffle 9.
Preferably, the conveying mechanism 7 further includes: strip shell 71, second supporting leg 72, electric conveyor belt 73 and collection case 74, the quantity of strip shell 71 is two, the bottom left and right sides of strip shell 71 all fixes and is provided with second supporting leg 72, and the fixed top that sets up at base 1 of second supporting leg 72, electric conveyor belt 73 is fixed to be set up in the inboard of strip shell 71, electric conveyor belt 73 is prior art, electric conveyor belt 73 can transmit the ore sand that falls on its upper surface, the fixed top that sets up at base 1 of collection case 74, and collection case 74 is located under one side of electric conveyor belt 73, collection case 74 can be used to collect the good ore sand of screening.
Preferably, the electric conveyor belt 73 is arranged obliquely from left to right, the electric conveyor belt 73 is positioned right below the two baffles 9, and the ore sand can be conveyed obliquely upwards under the conveying of the electric conveyor belt 73, so that the ore sand discharging position can be improved.
The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.
The method comprises the following steps: in the first embodiment, an external power supply of the first motor 66 is turned on, the first motor 66 is controlled to be started, the first motor 66 can drive the cam 67 to rotate, so that the cam 67 rotates clockwise around the output end of the first motor 66, when the hub end of the cam 67 rotates to be in contact with the bottom end of the connecting plate 65, the outer wall of the hub end of the cam 67 can push the connecting plate 65 to move upwards, so as to drive the first sieving plate 61 to move vertically upwards under the restriction of the first guide rod 62 and stretch the spring 64, so that when the outer wall of the cam 67 is out of contact with the bottom end of the connecting plate 65, the first sieving plate 61 can be pulled to move downwards rapidly under the elastic force of the spring 64, and further the first sieving plate 61 can oscillate upwards and downwards under the continuous collision of the cam 67 and the connecting plate 65;
in the second embodiment, the external power source of the second motor 603 is connected, and after the second motor 603 is controlled to start, the second motor 603 can drive the rotating plate 604 to rotate clockwise around the output end of the second motor 603 so as to drive the inserting column 607 to make clockwise circular motion, when the inserting column 607 rotates towards the front side or the rear side, the inserting column 607 can push the inner wall of the strip-shaped hole 606 to make the strip-shaped column 605 reciprocate back and forth, so as to drive the second sieving plate 610 to reciprocate back and forth, and under the continuous rotation of the inserting column 607, the second sieving plate 610 oscillates back and forth;
step two: the electric conveying belt 73 is controlled to be started, ore sand needing to be screened is placed into the feeding hopper 5, the ore sand can directly fall onto the first screening plate 61 under oscillation, so that the ore sand can be screened out under the inclined oscillation of the first screening plate 61 and fall onto the electric conveying belt 73 through the through hole 8, the ore sand which is not screened can continuously move out to one side of the first screening plate 61 under the inclined oscillation of the first screening plate 61, and can be collected at the bottom end of one side of the first screening plate 61;
step three: ore sand that falls on electric conveyor belt 73 is to oblique top transmission under electric conveyor belt 73's transmission to one side of accessible electric conveyor belt 73 is fallen and is collected in case 74, thereby can improve the ejection of compact position of ore sand, so that collect ore sand, be favorable to extensively promoting.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides an ore sand screening plant convenient to screening which characterized in that includes:
a base (1);
the device comprises a shell (2), wherein the shell (2) is obliquely arranged from right to left, four corners of the bottom end of the shell (2) are fixedly provided with first supporting legs (3), and the first supporting legs (3) are fixedly arranged at the top end of the base (1);
the supporting frame (4) is fixedly arranged at the top end of the base (1);
the feed hopper (5) is fixedly arranged at the top end of the inner side of the base (1);
the vibrating screening mechanism (6) is arranged in the inner cavity of the shell (2);
and the conveying mechanism (7) is arranged at the top end of the base (1).
2. A sand screening apparatus as claimed in claim 1, wherein: the vibrating sifting mechanism (6) includes:
the first screening plate (61) is inserted into the inner cavity of the shell (2), one sides of the shell (2) and the first screening plate (61) are both in a through shape, and one side of the first screening plate (61) extends out of one side of the shell (2);
the four corners of the bottom end of the first screening plate (61) are fixedly provided with first guide rods (62), and the first guide rods (62) are in matched insertion with the top end of the inner cavity of the shell (2) and extend out of the lower surface of the shell (2);
the limiting block (63) is fixedly arranged at the bottom end of the first guide rod (62);
the spring (64) is sleeved with the outer wall of the limiting block (63), and the spring (64) is fixedly arranged between the first screening plate (61) and the inner cavity of the shell (2).
3. A sand screening apparatus as claimed in claim 2, wherein: the vibrating screening mechanism (6) further comprises:
the top ends of the front side and the rear side of the first strip-shaped shell (61) are respectively fixedly provided with a connecting plate (65) arranged along the left-right direction;
a first motor (66) fixedly arranged on the front side of the shell (2);
the output end of the motor (66) extends into the inner cavity of the shell (2) and is fixedly provided with the cam (67).
4. A sand screening apparatus as claimed in claim 1, wherein: through-hole (8) have been seted up to the bottom of casing (2), just the bottom mounting of casing (2) is provided with baffle (9), just baffle (9) are from last to the inboard slope setting down.
5. A sand screening apparatus as claimed in claim 1, wherein: the conveying mechanism (7) comprises:
the number of the strip-shaped shells (71) is two, second supporting legs (72) are fixedly arranged on the left side and the right side of the bottom end of each strip-shaped shell (71), and the second supporting legs (72) are fixedly arranged at the top end of the base (1);
an electric conveyor belt (73) fixedly arranged on the inner side of the strip-shaped shell (71);
the material collecting box (74) is fixedly arranged at the top end of the base (1), and the material collecting box (74) is positioned under one side of the electric conveying belt (73).
6. A sand screening apparatus as claimed in claim 5, wherein: the electric conveying belt (73) is obliquely arranged from left to right, and the electric conveying belt (73) is positioned under the two baffles (9).
CN202011047660.7A 2020-09-29 2020-09-29 Ore sand screening plant convenient to screening Withdrawn CN112317302A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011047660.7A CN112317302A (en) 2020-09-29 2020-09-29 Ore sand screening plant convenient to screening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011047660.7A CN112317302A (en) 2020-09-29 2020-09-29 Ore sand screening plant convenient to screening

Publications (1)

Publication Number Publication Date
CN112317302A true CN112317302A (en) 2021-02-05

Family

ID=74312973

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202011047660.7A Withdrawn CN112317302A (en) 2020-09-29 2020-09-29 Ore sand screening plant convenient to screening

Country Status (1)

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CN (1) CN112317302A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113262975A (en) * 2021-05-31 2021-08-17 重庆工程职业技术学院 Screening plant for construction

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Publication number Priority date Publication date Assignee Title
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CN107243453A (en) * 2017-06-27 2017-10-13 新乡市东振机械制造有限公司 A kind of sieving equipment with conveying function
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Publication number Priority date Publication date Assignee Title
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CN205851323U (en) * 2016-07-26 2017-01-04 新乡市长城机械有限公司 Blast-furnace cinder sieving technology device
CN107243453A (en) * 2017-06-27 2017-10-13 新乡市东振机械制造有限公司 A kind of sieving equipment with conveying function
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113262975A (en) * 2021-05-31 2021-08-17 重庆工程职业技术学院 Screening plant for construction

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Application publication date: 20210205