CN108405340B - Multistage screening sand equipment for building - Google Patents

Multistage screening sand equipment for building Download PDF

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Publication number
CN108405340B
CN108405340B CN201810594997.6A CN201810594997A CN108405340B CN 108405340 B CN108405340 B CN 108405340B CN 201810594997 A CN201810594997 A CN 201810594997A CN 108405340 B CN108405340 B CN 108405340B
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CN
China
Prior art keywords
box body
screen
sand
fixedly connected
plate
Prior art date
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Expired - Fee Related
Application number
CN201810594997.6A
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Chinese (zh)
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CN108405340A (en
Inventor
张翔
王利
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Zhang Xiang
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Individual
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Filing date
Publication date
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Priority to CN201810594997.6A priority Critical patent/CN108405340B/en
Publication of CN108405340A publication Critical patent/CN108405340A/en
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Publication of CN108405340B publication Critical patent/CN108405340B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C19/00—Other disintegrating devices or methods
    • 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
    • B07B1/06—Cone or disc shaped 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
    • B07B1/28—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
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/16—Rigid blades, e.g. scrapers; Flexible blades, e.g. wipers
    • B08B1/165—Scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
    • B08B1/32—Cleaning by methods involving the use of tools by movement of cleaning members over a surface using rotary cleaning members

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Combined Means For Separation Of Solids (AREA)

Abstract

The invention discloses a multi-stage sand screening device for buildings, which comprises a box body, a primary screening mechanism, a secondary screening mechanism and a tertiary screening mechanism, wherein the box body is provided with a first screening mechanism and a second screening mechanism; the box right side is equipped with secondary screening mechanism, and secondary screening mechanism includes first sieve and stock guide, and first sieve below is equipped with the stock guide, and the box is located stock guide lower extreme department and is equipped with the backward flow hole. According to the invention, the screen cylinder, the scraper, the annular support plate, the second screen plate and the linkage mechanism with the rotating shaft are arranged, so that fine sand in waste residues can be screened and recovered by swinging of the second screen plate, the screening effect is improved, repeated screening of sand is avoided, and the screening efficiency is improved; the invention crushes the sand blocks in the coarse sand by the conical screen cylinder, the crushing cone and the screen holes arranged on the screen cylinder, and simultaneously efficiently separates the waste residues in the coarse sand, thereby facilitating the subsequent treatment; according to the invention, the coarse sand is secondarily screened by the screen cylinder and the second screen plate, so that the screening effect is improved.

Description

Multistage screening sand equipment for building
Technical Field
The invention relates to the field of construction machinery, in particular to a multistage sand screening device for buildings.
Background
The sand screening machine is common building equipment, waste residues such as stones and the like in coarse sand are removed through the sieve plate device to obtain fine sand reaching the standard of building sand, and along with the development of the technology, the sand screening machine replaces manual sand screening for a long time, so that the sand screening efficiency is greatly improved; but traditional screening sand machine is equipped with solitary vibration sieve or a sieve section of thick bamboo, carries out single screening to coarse sand, if remain in the waste residue more fine sand, still need drop into the screening sand machine again with the waste residue that contains fine sand, though avoided the waste of fine sand, but consumed more time and electric energy, complex operation has reduced the overall efficiency of screening sand, in addition, traditional screening sand machine all is only one-level screening mechanism, the unable fine assurance of screening effect.
There is a need for a sand screening apparatus that recovers fine sand from waste residues and improves the sand screening effect.
Disclosure of Invention
The invention aims to provide a multistage sand screening device for buildings, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a multi-stage sand screening device for buildings comprises a box body, a primary screening mechanism, a secondary screening mechanism and a tertiary screening mechanism; the top of the box body is provided with a feed hopper, a primary screening mechanism is arranged below the feed hopper and comprises a screen drum, the top of the screen drum is provided with a small conical part, and crushing cones are uniformly distributed on the surface of the small conical part; sieve pores are uniformly distributed on the conical surface of the sieve cylinder; an annular supporting plate is arranged below the screen drum, and the screen drum is rotatably connected with the annular supporting plate through a bearing sleeve; the upper surface of the annular supporting plate is abutted with a scraper which is fixedly connected with the edge of the lower part of the screen drum, and the box body is positioned on the right side of the annular supporting plate and is provided with a first slag discharge hole; the screen drum is provided with a support frame, the support frame is fixedly connected with a rotating shaft, the lower end of the rotating shaft extends to the lower part of the box body and is rotatably connected with a base through a bearing seat, and the base is fixedly connected with the box body; the rotating shaft is connected with an output shaft of a variable frequency motor through a transmission belt; the right side of the box body is provided with a secondary screening mechanism, the secondary screening mechanism comprises a first sieve plate and a material guide plate, the first sieve plate is obliquely arranged, and the upper end of the first sieve plate is hinged with the box body; the lower end of the first sieve plate is hinged with a connecting rod, the connecting rod is hinged with a horizontal rod, the horizontal rod extends into the box body and is fixedly connected with an upper wedge block, and a return spring is sleeved on the horizontal rod; a material guide plate is arranged below the first sieve plate, and a backflow hole is formed in the lower end of the material guide plate of the box body; a third screening mechanism is arranged below the screen drum and comprises a second screen plate, the second screen plate is connected with the inner wall of the box body through a spring seat, a rotating shaft penetrates through the second screen plate, and a sliding column is fixedly connected to the bottom of the second screen plate; the tail end of the sliding column is nested with a grooved roller, the grooved roller is fixedly connected with the rotating shaft, the grooved roller is provided with an obliquely arranged oval track groove, and the sliding column is in sliding connection with the oval track groove of the grooved roller; the second sieve right side tip fixedly connected with vertical pole, wedge block under the vertical pole top fixedly connected with, lower wedge block and last wedge block butt, the box is located the second sieve right side and is equipped with the second and arranges the cinder hole, and the box left side is equipped with row's sand hole.
As a further scheme of the invention: the screen drum is of a conical structure.
As a further scheme of the invention: the annular supporting plate is fixedly connected with the inner wall of the box body.
As a further scheme of the invention: the first slag discharge hole, the backflow hole and the sand discharge hole are rectangular through holes.
As a further scheme of the invention: the variable frequency motor is fixedly connected with the base in a bolt fixing mode.
As a further scheme of the invention: the sliding column is L-shaped.
As a further scheme of the invention: the material guide plate is fixedly connected with the box body.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the screen cylinder, the scraper, the annular support plate, the second screen plate and the linkage mechanism with the rotating shaft are arranged, so that fine sand in waste residues can be screened and recovered by swinging of the second screen plate, the screening effect is improved, repeated screening of sand is avoided, and the screening efficiency is improved; the invention crushes the sand blocks in the coarse sand by the conical screen cylinder, the crushing cone and the screen holes arranged on the screen cylinder, and simultaneously efficiently separates the waste residues in the coarse sand, thereby facilitating the subsequent treatment; according to the invention, the coarse sand is secondarily screened by the screen cylinder and the second screen plate, so that the screening effect is improved.
Drawings
FIG. 1 is a schematic structural diagram of a multi-stage sand screening device for buildings;
FIG. 2 is a cross-sectional view of a screen drum of a multi-stage sand screening apparatus for construction;
FIG. 3 is a perspective view of a screen drum in a multi-stage sand screening apparatus for construction;
FIG. 4 is a schematic structural diagram of a crushing cone in a multi-stage sand screening device for buildings;
fig. 5 is a perspective view of a grooved roll in a multistage sand screening apparatus for construction.
In the figure: 1-a box body; 2-a feed hopper; 3-a screen drum; 4-a crushing cone; 5-screening holes; 6-annular supporting plate; 7-a bearing sleeve; 8-a scraper; 9-a support frame; 10-a rotating shaft; 11-a base; 12-a drive belt; 13-a variable frequency motor; 14-a first slag discharge hole; 15-a first screen deck; 16-a connecting rod; 17-horizontal bar; 18-upper wedge block; 19-a return spring; 20-a material guide plate; 21-a reflow hole; 22-a second screen deck; 23-spring support seat; 24-a sliding post; 25-grooved rolls; 26-sand discharge holes; 27-lower wedge block; 28-vertical rod; 29-second deslagging hole.
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.
Referring to fig. 1 to 4, in the embodiment of the present invention, a multistage sand screening device for a building includes a box body 1, a primary screening mechanism, a secondary screening mechanism, and a tertiary screening mechanism; the top of the box body 1 is provided with a feed hopper 2, a primary screening mechanism is arranged below the feed hopper 2 of the box body 1 and comprises a screen cylinder 3, the screen cylinder 3 is of a conical structure, the top of the screen cylinder 3 is provided with a small conical part, crushing cones 4 are uniformly distributed on the surface of the small conical part, and the crushing cones 4 impact and crush falling sand blocks; the screening effect is improved; sieve holes 5 are uniformly distributed on the conical surface of the sieve drum 3 for preliminary screening; an annular supporting plate 6 is arranged below the screen drum 3, the screen drum 3 is rotatably connected with the annular supporting plate 6 through a bearing sleeve 7, and the annular supporting plate 6 is fixedly connected with the inner wall of the box body 1; the upper surface of the annular supporting plate 6 is abutted with a scraper 8, the scraper 8 is fixedly connected with the edge of the lower part of the screen drum 3, a first slag discharge hole 14 is formed in the box body 1 on the right side of the annular supporting plate 6, and the first slag discharge hole 14 is a rectangular through hole; the screen drum 3 is provided with a support frame 9, the support frame 9 is fixedly connected with a rotating shaft 10, the lower end of the rotating shaft 10 extends to the lower part of the box body 1 and is rotatably connected with a base 11 through a bearing seat, and the base 11 is fixedly connected with the box body 1; the axis of rotation 10 is connected with inverter motor 13's output shaft through driving belt 12, inverter motor 13 passes through bolt fastening's mode and base 1 fixed connection, inverter motor 13 and external power source electric connection, inverter motor 13 drives axis of rotation 10 and the periodic corotation of a sieve section of thick bamboo 3 and reversal through driving belt 12, sieves husky, and a sieve section of thick bamboo 3 drives scraper blade 8 simultaneously and rotates, will pile up the waste residue on annular support plate 6 and discharge to the box 1 outside in first row of sediment hole 14.
Referring to fig. 1 and 5, a secondary screening mechanism is arranged on the right side of the box body 1, the secondary screening mechanism comprises a first screen plate 15 and a material guide plate 20, the first screen plate 15 is obliquely arranged, and the upper end of the first screen plate is hinged to the box body 1; the lower end of the first sieve plate 15 is hinged with a connecting rod 16, the connecting rod 16 is hinged with a horizontal rod 17, a return spring 19 is sleeved on the horizontal rod 17, the horizontal rod 17 extends into the box body 1 and is fixedly connected with an upper wedge block 18, and the first sieve plate 15 carries out secondary screening on fine sand remained in waste residues, so that the waste of the fine sand is avoided; the material guide plate 20 is arranged below the first sieve plate 15, the material guide plate 20 is fixedly connected with the box body 1, a backflow hole 21 is formed in the lower end of the box body 1, which is located at the material guide plate 20, the backflow hole 21 is a rectangular through hole, and fine sand screened by the secondary screening returns to the inside of the box body 1 through the backflow hole 21.
Referring to fig. 1, a third screening mechanism is arranged below the screen drum 3, the third screening mechanism includes a second screen plate 22, the second screen plate 22 is connected with the inner wall of the box body 1 through a spring seat 23, the rotating shaft 10 penetrates through the second screen plate 22, a sliding column 24 is fixedly connected to the bottom of the second screen plate 22, and the sliding column 24 is L-shaped; the tail end of the sliding column 24 is nested with a grooved roller 25, the grooved roller 25 is fixedly connected with the rotating shaft 10, the grooved roller 25 is provided with an obliquely arranged oval track groove, the sliding column 24 is slidably connected with the oval track groove of the grooved roller 25, and the rotating shaft 10 drives the grooved roller 25 to rotate, so that the sliding column 24 drives the second sieve plate 22 to vibrate up and down; second sieve 22 right side tip fixedly connected with vertical pole 28, wedge 27 under the 28 top fixedly connected with of vertical pole, wedge 27 and the 18 butt of last wedge, drive vertical pole 28 and lower wedge 27 when second sieve 22 vibrates from top to bottom and reciprocate, and then promote the 18 lateral shifting of last wedge, it drives first sieve 15 luffing motion through horizon bar 17 and connecting rod 16 to go up wedge 18, filter, box 1 is located second sieve 22 right side and is equipped with second row cinder notch 29, box 1 left side is equipped with row husky hole 26, row husky hole 26 is the rectangle through-hole.
The working principle of the invention is as follows: starting the variable frequency motor 13, driving the rotating shaft 10 to rotate forwards and reversely periodically by the variable frequency motor 13, throwing coarse sand into the box body 1 from the feed hopper 2, firstly dropping the coarse sand onto the crushing cone 4 at the upper end of the screen cylinder 3, and impacting and crushing the sand blocks and the crushing cone 4 to improve the screening efficiency; the fine sand falls from the sieve pores 5 on the conical surface of the sieve cylinder 3, the waste residue falls onto the annular support plate 6 along the conical surface of the sieve cylinder 3, the sieve cylinder 3 drives the scraper 8 to rotate, the waste residue is discharged onto the first sieve plate 15 from the first residue discharge hole 14, the first sieve plate 15 screens the fine sand remained in the waste residue, the waste residue is prevented from being fed from the feed hopper 2 for the second time, and meanwhile, the waste of the fine sand is avoided; the fine sand that first sieve 15 was sieved gets into in the box through stock guide 20 and backward flow hole 21 and joins with the fine sand that a sieve section of thick bamboo 3 was sieved and falls into second sieve 22, and the second sieve 22 of vibration carries out the secondary screening to fine sand, improves the effect of sieving sand, and the waste residue that the secondary was sieved is discharged from second row's cinder hole 29.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (7)

1. A multi-stage sand screening device for buildings comprises a box body (1), a primary screening mechanism, a secondary screening mechanism and a tertiary screening mechanism; the device is characterized in that a feed hopper (2) is arranged at the top of the box body (1), a primary screening mechanism is arranged below the feed hopper (2) of the box body (1), the primary screening mechanism comprises a screen cylinder (3), a small conical part is arranged at the top of the screen cylinder (3), and crushing cones (4) are uniformly distributed on the surface of the small conical part; sieve pores (5) are uniformly distributed on the conical surface of the sieve cylinder (3); an annular supporting plate (6) is arranged below the screen drum (3), and the screen drum (3) is rotatably connected with the annular supporting plate (6) through a bearing sleeve (7); the upper surface of the annular supporting plate (6) is abutted with a scraper (8), the scraper (8) is fixedly connected with the edge of the lower part of the screen drum (3), and the box body (1) is provided with a first slag discharge hole (14) on the right side of the annular supporting plate (6); the screen drum (3) is provided with a support frame (9), the support frame (9) is fixedly connected with a rotating shaft (10), the lower end of the rotating shaft (10) extends to the lower part of the box body (1) and is rotatably connected with a base (11) through a bearing seat, and the base (11) is fixedly connected with the box body (1); the rotating shaft (10) is connected with an output shaft of a variable frequency motor (13) through a transmission belt (12); the right side of the box body (1) is provided with a secondary screening mechanism, the secondary screening mechanism comprises a first screen plate (15) and a material guide plate (20), the first screen plate (15) is obliquely arranged, and the upper end of the first screen plate is hinged with the box body (1); the lower end of the first sieve plate (15) is hinged with a connecting rod (16), the connecting rod (16) is hinged with a horizontal rod (17), the horizontal rod (17) extends into the box body (1) and is fixedly connected with an upper wedge block (18), and a return spring (19) is sleeved on the horizontal rod (17); a material guide plate (20) is arranged below the first sieve plate (15), and a return hole (21) is formed in the position, located at the lower end of the material guide plate (20), of the box body (1); a tertiary screening mechanism is arranged below the screen drum (3), the tertiary screening mechanism comprises a second screen plate (22), the second screen plate (22) is connected with the inner wall of the box body (1) through a spring seat (23), a rotating shaft (10) penetrates through the second screen plate (22), and the bottom of the second screen plate (22) is fixedly connected with a sliding column (24); the tail end of the sliding column (24) is nested with a grooved roller (25), the grooved roller (25) is fixedly connected with the rotating shaft (10), the grooved roller (25) is provided with an obliquely arranged oval track groove, and the sliding column (24) is in sliding connection with the oval track groove of the grooved roller (25); second sieve (22) right side tip fixedly connected with vertical pole (28), wedge (27) under vertical pole (28) top fixedly connected with, wedge (27) and last wedge (18) butt down, box (1) are located second sieve (22) right side and are equipped with second row's cinder hole (29), and box (1) left side is equipped with row's sand hole (26).
2. The multistage sand screening apparatus for buildings according to claim 1, wherein the screen cylinder (3) has a conical structure.
3. The multistage sand screening device for buildings according to claim 1, wherein the annular supporting plate (6) is fixedly connected with the inner wall of the box body (1).
4. The multistage sand screening device for buildings according to claim 1, wherein the first slag discharge hole (14), the backflow hole (21) and the sand discharge hole (26) are rectangular through holes.
5. The multistage sand screening device for the building as claimed in claim 1, wherein the variable frequency motor (13) is fixedly connected with the base (1) in a bolt fixing mode.
6. The multistage sand screening apparatus for buildings according to claim 1, wherein the sliding column (24) is L-shaped.
7. The multistage sand screening device for buildings according to claim 1, wherein the guide plate (20) is fixedly connected with the box body (1).
CN201810594997.6A 2018-06-11 2018-06-11 Multistage screening sand equipment for building Expired - Fee Related CN108405340B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810594997.6A CN108405340B (en) 2018-06-11 2018-06-11 Multistage screening sand equipment for building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810594997.6A CN108405340B (en) 2018-06-11 2018-06-11 Multistage screening sand equipment for building

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CN108405340A CN108405340A (en) 2018-08-17
CN108405340B true CN108405340B (en) 2020-02-04

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CN109530026A (en) * 2018-11-22 2019-03-29 东台市高科技术创业园有限公司 One kind compressing formula metal grinding device
CN109847902B (en) * 2018-12-21 2020-11-24 重庆七彩虹新材料技术有限公司 Flour mill
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