CN108838064A - A kind of vacuum spinning frame fine sand screening plant and its screening technique - Google Patents

A kind of vacuum spinning frame fine sand screening plant and its screening technique Download PDF

Info

Publication number
CN108838064A
CN108838064A CN201810543283.2A CN201810543283A CN108838064A CN 108838064 A CN108838064 A CN 108838064A CN 201810543283 A CN201810543283 A CN 201810543283A CN 108838064 A CN108838064 A CN 108838064A
Authority
CN
China
Prior art keywords
screening
fine sand
solenoid valve
vibration screen
gravel
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Withdrawn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
CN201810543283.2A
Other languages
Chinese (zh)
Inventor
武传宇
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.)
Tianjin Yun Xin Machinery Equipment Manufacturing Co Ltd
Original Assignee
Tianjin Yun Xin Machinery Equipment Manufacturing Co Ltd
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 Tianjin Yun Xin Machinery Equipment Manufacturing Co Ltd filed Critical Tianjin Yun Xin Machinery Equipment Manufacturing Co Ltd
Priority to CN201810543283.2A priority Critical patent/CN108838064A/en
Publication of CN108838064A publication Critical patent/CN108838064A/en
Withdrawn legal-status Critical Current

Links

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
    • B07B1/42Drive 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
    • B07B9/00Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets

Abstract

The invention discloses a kind of vacuum spinning frame fine sand screening plant and its screening techniques, including main backstop, Cycle Screening structure, all-metal shell, first vibration screen, granularity inductor, the Cycle Screening structure is provided with above the main backstop, the Cycle Screening superstructure is equipped with circulating line, the first solenoid valve is installed below the circulating line, first solenoid valve side is equipped with second solenoid valve, the second solenoid valve side is equipped with third solenoid valve, circulation driving motor is installed below the third solenoid valve, Cycle Screening structure side is provided with fine sand effuser, the all-metal shell is provided with above the fine sand effuser.Beneficial effect is:1, Cycle Screening can be carried out to gravel when screening gravel, screening efficiency is high, and screening effect is good;2, the gravel granularity after screening can be incuded, it is ensured that screening effect;3, Fully-mechanized that gravel is screened, save a large amount of human resources.

Description

A kind of vacuum spinning frame fine sand screening plant and its screening technique
Technical field
The present invention relates to gravel screening installation fields, and the present invention relates to a kind of vacuum spinning frame fine sand screening plant and its sieves Choosing method.
Background technique
Vacuum sand pump is a kind of cleaner for the conveying of bulk granular material Pneumatic pipe.Mainly by configured with suction The sand shakeout tank and phase of sandpipe and air intake duct and the filter core back-blowing cyclone dust collectors and water ring that are fixedly installed in square frame are true Empty pump group at.The air intake duct of its water ring vacuum pump is connected to the upper chamber of deduster, and the air intake duct of sand shakeout tank is connected to the rotation of deduster Wind air inlet of air duct.
Existing fine sand screening plant needs largely manually to safeguard equipment when gravel is recycled, Human cost is higher.
Summary of the invention
The object of the invention is that provide to solve the above-mentioned problems a kind of vacuum spinning frame fine sand screening plant and Its screening technique.
The present invention is achieved through the following technical solutions above-mentioned purpose:
A kind of vacuum spinning frame fine sand screening plant, including main backstop, Cycle Screening structure, all-metal shell, first Vibration screen, granularity inductor, are provided with the Cycle Screening structure above the main backstop, in the Cycle Screening structure Side is equipped with circulating line, is equipped with the first solenoid valve below the circulating line, and first solenoid valve side is equipped with the Two solenoid valves, the second solenoid valve side are equipped with third solenoid valve, and circulation driving is equipped with below the third solenoid valve Motor, Cycle Screening structure side are provided with fine sand effuser, are provided with the all-metal above the fine sand effuser Shell, the all-metal enclosure interior are provided with third vibration screen, are equipped with the second vibration above the third vibration screen Sieve, the second vibration screen top are equipped with first vibration screen, are equipped with sieve above first vibration screen Choosing flows into pipe, and the screening flows into pipe side and is equipped with vibration screening structure, and the vibration screening superstructure is equipped with first Vibrating motor, synchronous vibrator is equipped with inside first vibrating motor, and the synchronous vibrator side is equipped with sieve company Extension bar, sieve connecting rod side are equipped with eccentric gearing bar, and eccentric gearing bar side is equipped with the second vibrating motor, Sound-deadening and noise-reducing device is installed inside second vibrating motor, motor reduction gearbox is installed below the sound-deadening and noise-reducing device, it is described The granularity inductor is installed below third vibration screen, granularity inductor side is equipped with buzzer alarm, described Buzzer alarm side is equipped with operation control box, is equipped with liquid crystal display above the operation control box.
Further, the Cycle Screening structure is bolted on above the main backstop, the fine sand outflow Pipe is welded on the all-metal housing bottom.
Further, the synchronous vibration is provided with inside first vibrating motor and second vibrating motor Device, the sound-deadening and noise-reducing device, the motor reduction gearbox, the synchronous vibrator are bolted with the sieve connecting rod, The sieve connecting rod is connect with the eccentric gearing bar by pin shaft.
Further, the granularity inductor flows into pipe with the screening and is connect by bolt line, the granularity inductor It is connected through a screw thread with the buzzer alarm.
Further, the circulating line is connect with first solenoid valve by conducting wire, the circulating line respectively with First solenoid valve, the second solenoid valve, the third solenoid valve are connected by pipeline, the circulation driving motor and institute Operation control box is stated to connect by conducting wire.
Further, first vibration screen, second vibration screen, the third vibration screen with the sieve Net connecting rod is bolted, and it is 0-5mm that first vibration screen, which allows to flow out gravel particle size range, second vibration It is 0-3mm that sieve, which allows to flow out gravel particle size range, and it is 0-1mm that the third vibration screen, which allows to flow out gravel particle size range,.
Further, the screening flows into pipe and is welded on the all-metal case top.
Further, the granularity inductor is connect with the buzzer alarm by conducting wire.
Further, the operation control box is connect with the liquid crystal display by conducting wire.
The present invention also provides a kind of screening techniques of vacuum spinning frame fine sand screening plant, are applied to above-mentioned vacuum spinning frame In fine sand screening plant, gravel is flowed into pipe from the screening and is sent into the all-metal enclosure interior, and is deposited in described first Above vibration screen, first vibrating motor is worked at the same time with second vibrating motor, drives the eccentric biography of two sides Lever movement, makes the sieve connecting rod that first vibration screen be driven to be moved, screens to gravel, and screening is completed Afterwards, the gravel remained in above first vibration screen enters the circulating line, and first solenoid valve is opened, described to follow Ring driving motor is repeatedly screened gravel re-circulation, while on second vibration screen and the third vibration screen The screening to gravel is completed in the above-mentioned movement of Fang Jinhang, and gravel is flowed out from the fine sand effuser after the completion of screening, the granularity sense Device is answered to incude gravel granularity, if granularity exceeds deviation range, the buzzer alarm sounds the alarm, the operation control Case processed carries out whole control, the liquid crystal display screen display device working condition to device.
The beneficial effects of the present invention are:1, Cycle Screening can be carried out to gravel when screening gravel, screening efficiency is high, Screening effect is good;2, the gravel granularity after screening can be incuded, it is ensured that screening effect;3, Fully-mechanized that gravel is carried out Screening, has saved a large amount of human resources.
Detailed description of the invention
Fig. 1 is a kind of front view structure schematic diagram of vacuum spinning frame fine sand screening plant of the present invention;
Fig. 2 is a kind of operation control box surface structure schematic diagram of vacuum spinning frame fine sand screening plant of the present invention;
Fig. 3 is a kind of Cycle Screening structure front view structure schematic diagram of vacuum spinning frame fine sand screening plant of the present invention;
Fig. 4 is a kind of vibration screening structure front view structure schematic diagram of vacuum spinning frame fine sand screening plant of the present invention.
The reference numerals are as follows:
1, main backstop;2, Cycle Screening structure;201, circulating line;202, the first solenoid valve;203, second solenoid valve; 204, third solenoid valve;205, driving motor is recycled;3, fine sand effuser;4, all-metal shell;5, third vibration screen;6, Two vibration screens;7, the first vibration screen;8, screening flows into pipe;9, vibration screening structure;901, the first vibrating motor;902, same Walk vibrator;903, sieve connecting rod;904, eccentric gearing bar;905, the second vibrating motor;906, sound-deadening and noise-reducing device;907, electric Machine reduction gearbox;10, granularity inductor;11, buzzer alarm;12, operation control box;13, liquid crystal display.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As Figure 1-Figure 4, a kind of vacuum spinning frame fine sand screening plant, including main backstop 1, Cycle Screening structure 2, All-metal shell 4, the first vibration screen 7, granularity inductor 10 are provided with the Cycle Screening knot above the main backstop 1 Structure 2 is equipped with circulating line 201 above the Cycle Screening structure 2, is equipped with the first electromagnetism below the circulating line 201 Valve 202,202 side of the first solenoid valve are equipped with second solenoid valve 203, and 203 side of second solenoid valve is equipped with Three solenoid valves 204 are equipped with circulation driving motor 205,2 side of Cycle Screening structure below the third solenoid valve 204 It is provided with fine sand effuser 3, is provided with the all-metal shell 4 above the fine sand effuser 3, in the all-metal shell 4 Portion is provided with third vibration screen 5, and the second vibration screen 6, second vibrating screen are equipped with above the third vibration screen 5 First vibration screen 7 is installed above net 6, screening is installed above first vibration screen 7 and flows into pipe 8, the sieve Choosing flows into 8 side of pipe and is equipped with vibration screening structure 9, and the first vibrating motor 901 is equipped with above the vibration screening structure 9, Synchronous vibrator 902 is installed, 902 side of synchronous vibrator is equipped with sieve company inside first vibrating motor 901 Extension bar 903,903 side of sieve connecting rod are equipped with eccentric gearing bar 904, and 904 side of eccentric gearing bar is equipped with Second vibrating motor 905 is equipped with sound-deadening and noise-reducing device 906, the sound-deadening and noise-reducing device 906 inside second vibrating motor 905 Lower section is equipped with motor reduction gearbox 907, and the granularity inductor 10, the granularity are equipped with below the third vibration screen 5 10 side of inductor is equipped with buzzer alarm 11, and 11 side of buzzer alarm is equipped with operation control box 12, the behaviour Make that liquid crystal display 13 is installed above control cabinet 12.
In the present embodiment, the Cycle Screening structure 2 is bolted on 1 top of main backstop, the fine sand Effuser 3 is welded on 4 bottom of all-metal shell.
In the present embodiment, it is provided with inside first vibrating motor 901 and second vibrating motor 905 described same Vibrator 902, the sound-deadening and noise-reducing device 906, the motor reduction gearbox 907 are walked, the synchronous vibrator 902 connects with the sieve Extension bar 903 is bolted, and the sieve connecting rod 903 is connect with the eccentric gearing bar 904 by pin shaft.
In the present embodiment, the granularity inductor 10 flows into pipe 8 with the screening and is connect by bolt line, the granularity sense Device 10 is answered to be connected through a screw thread with the buzzer alarm 11.
In the present embodiment, the circulating line 201 is connect with first solenoid valve 202 by conducting wire, the circulation pipe Road 201 is connect with first solenoid valve 202, the second solenoid valve 203, the third solenoid valve 204 by pipeline respectively, The circulation driving motor 205 is connect with the operation control box 12 by conducting wire.
In the present embodiment, first vibration screen 7, second vibration screen 6, the third vibration screen 5 with The sieve connecting rod 903 is bolted, and it is 0-5mm, institute that first vibration screen 7, which allows to flow out gravel particle size range, Stating the second vibration screen 6 to allow to flow out gravel particle size range is 0-3mm, and the third vibration screen 5 allows to flow out gravel partial size Range is 0-1mm.
In the present embodiment, the screening flows into pipe 8 and is welded on 4 top of all-metal shell.
In the present embodiment, the granularity inductor 10 is connect with the buzzer alarm 11 by conducting wire.
In the present embodiment, the operation control box 12 is connect with the liquid crystal display 13 by conducting wire.
The present invention also provides a kind of screening techniques of vacuum spinning frame fine sand screening plant, are applied to above-mentioned vacuum spinning frame In fine sand screening plant, gravel is flowed into pipe 8 from the screening and is sent into inside the all-metal shell 4, and is deposited in described the One vibration screen, 7 top, first vibrating motor 901 are worked at the same time with second vibrating motor 905, drive the institute of two sides State eccentric gearing bar 904 movement, make the sieve connecting rod 903 that first vibration screen 7 be driven to be moved, to gravel into Row screening, after the completion of screening, the gravel for remaining in first vibration screen, 7 top enters the circulating line 201, and described the One solenoid valve 202 is opened, and the circulation driving motor 205 is repeatedly screened gravel re-circulation, while second vibration Carry out above-mentioned movement above dynamic sieve 6 and the third vibration screen 5, complete the screening to gravel, after the completion of screening gravel from The fine sand effuser 3 flows out, and the granularity inductor 10 incudes gravel granularity, if granularity exceeds deviation range, institute It states buzzer alarm 11 to sound the alarm, the operation control box 12 carries out whole control, the liquid crystal display 13 to device Display device working condition.
The basic principles, main features and advantages of the invention have been shown and described above.The technical staff of the industry should Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements It all fall within the protetion scope of the claimed invention.

Claims (10)

1. a kind of vacuum spinning frame fine sand screening plant, it is characterised in that:Including main backstop (1), Cycle Screening structure (2), All-metal shell (4), the first vibration screen (7), granularity inductor (10), main backstop (1) top are provided with described follow Ring grizzly selects structure (2), is equipped with circulating line (201) above the Cycle Screening structure (2), under the circulating line (201) Side is equipped with the first solenoid valve (202), and the first solenoid valve (202) side is equipped with second solenoid valve (203), and described second Solenoid valve (203) side is equipped with third solenoid valve (204), and circulation driving electricity is equipped with below the third solenoid valve (204) Machine (205), Cycle Screening structure (2) side are provided with fine sand effuser (3), setting above the fine sand effuser (3) There is the whole metal case body (4), the all-metal shell (4) is internally provided with third vibration screen (5), the third vibrating screen It is equipped with the second vibration screen (6) above net (5), first vibration screen is installed above second vibration screen (6) (7), screening is installed above first vibration screen (7) and flows into pipe (8), the screening flows into pipe (8) side and is equipped with vibration Dynamic screening structure (9), vibration screening structure (9) top are equipped with the first vibrating motor (901), first vibrating motor (901) internal to be equipped with synchronous vibrator (902), synchronous vibrator (902) side is equipped with sieve connecting rod (903), Sieve connecting rod (903) side is equipped with eccentric gearing bar (904), and eccentric gearing bar (904) side is equipped with Two vibrating motors (905), second vibrating motor (905) is internal to be equipped with sound-deadening and noise-reducing device (906), the sound-deadening and noise-reducing device (906) lower section is equipped with motor reduction gearbox (907), is equipped with the granularity inductor below the third vibration screen (5) (10), granularity inductor (10) side is equipped with buzzer alarm (11), and buzzer alarm (11) side is equipped with Operation control box (12), operation control box (12) top are equipped with liquid crystal display (13).
2. a kind of vacuum spinning frame fine sand screening plant according to claim 1, it is characterised in that:The Cycle Screening knot Structure (2) is bolted on above the main backstop (1), and the fine sand effuser (3) is welded on the all-metal shell (4) bottom.
3. a kind of vacuum spinning frame fine sand screening plant according to claim 1, it is characterised in that:The first vibration electricity The synchronous vibrator (902), the sound-deadening and noise-reducing device are provided with inside machine (901) and second vibrating motor (905) (906), the motor reduction gearbox (907), the synchronous vibrator (902) and the sieve connecting rod (903) are connected by bolt It connects, the sieve connecting rod (903) is connect with the eccentric gearing bar (904) by pin shaft.
4. a kind of vacuum spinning frame fine sand screening plant according to claim 1, it is characterised in that:The granularity inductor (10) it flows into pipe (8) with the screening to connect by bolt line, the granularity inductor (10) and the buzzer alarm (11) It is connected through a screw thread.
5. a kind of vacuum spinning frame fine sand screening plant according to claim 1, it is characterised in that:The circulating line (201) connect with first solenoid valve (202) by conducting wire, the circulating line (201) respectively with first solenoid valve (202), the second solenoid valve (203), the third solenoid valve (204) are connected by pipeline, the circulation driving motor (205) it is connect with the operation control box (12) by conducting wire.
6. a kind of vacuum spinning frame fine sand screening plant according to claim 1, it is characterised in that:First vibrating screen Net (7), second vibration screen (6), the third vibration screen (5) pass through bolt with the sieve connecting rod (903) Connection, it is 0-5mm that first vibration screen (7), which allows to flow out gravel particle size range, and second vibration screen (6) allows to flow Gravel particle size range is 0-3mm out, and it is 0-1mm that the third vibration screen (5), which allows to flow out gravel particle size range,.
7. a kind of vacuum spinning frame fine sand screening plant according to claim 1, it is characterised in that:The screening flows into pipe (8) it is welded at the top of the all-metal shell (4).
8. a kind of vacuum spinning frame fine sand screening plant according to claim 1, it is characterised in that:The granularity inductor (10) it is connect with the buzzer alarm (11) by conducting wire.
9. a kind of vacuum spinning frame fine sand screening plant according to claim 1, it is characterised in that:The operation control box (12) it is connect with the liquid crystal display (13) by conducting wire.
10. a kind of screening technique of vacuum spinning frame fine sand screening plant is applied to described in any one of claim 1 to 9 Vacuum spinning frame fine sand screening plant in, it is characterised in that:Gravel is flowed into pipe (8) from the screening and is sent into the all-metal Shell (4) is internal, and is deposited in above first vibration screen (7), first vibrating motor (901) and second vibration Dynamic motor (905) work at the same time, and drive the eccentric gearing bar (904) of two sides to move, make sieve connecting rod (903) band It moves first vibration screen (7) to be moved, gravel is screened, after the completion of screening, remain in first vibrating screen Gravel above net (7) enters the circulating line (201), and first solenoid valve (202) is opened, the circulation driving motor (205) gravel re-circulation is repeatedly screened, while second vibration screen (6) and the third vibration screen (5) Top carries out above-mentioned movement, completes the screening to gravel, gravel is flowed out from the fine sand effuser (3) after the completion of screening, described Granularity inductor (10) incudes gravel granularity, if granularity exceeds deviation range, the buzzer alarm (11) issues police Report sound, the operation control box (12) carry out whole control, liquid crystal display (13) the display device working condition to device.
CN201810543283.2A 2018-05-29 2018-05-29 A kind of vacuum spinning frame fine sand screening plant and its screening technique Withdrawn CN108838064A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810543283.2A CN108838064A (en) 2018-05-29 2018-05-29 A kind of vacuum spinning frame fine sand screening plant and its screening technique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810543283.2A CN108838064A (en) 2018-05-29 2018-05-29 A kind of vacuum spinning frame fine sand screening plant and its screening technique

Publications (1)

Publication Number Publication Date
CN108838064A true CN108838064A (en) 2018-11-20

Family

ID=64210010

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810543283.2A Withdrawn CN108838064A (en) 2018-05-29 2018-05-29 A kind of vacuum spinning frame fine sand screening plant and its screening technique

Country Status (1)

Country Link
CN (1) CN108838064A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109174628A (en) * 2018-11-12 2019-01-11 天津芸信机械设备制造有限公司 A kind of Vacuum sand pump fine sand screening plant and screening technique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109174628A (en) * 2018-11-12 2019-01-11 天津芸信机械设备制造有限公司 A kind of Vacuum sand pump fine sand screening plant and screening technique

Similar Documents

Publication Publication Date Title
CN209238432U (en) A kind of screening machine for soil remediation fertilizer production
CN108212748A (en) A kind of sandstone separator of connecting rod cam type transmission
CN209109570U (en) A kind of building construction silt filtering mixing arrangement
CN110404931B (en) Building solid waste recycling and classifying treatment system
CN108838064A (en) A kind of vacuum spinning frame fine sand screening plant and its screening technique
CN106000863A (en) Automatic high-efficiency multi-stage sand washing and sieving equipment
CN109174628A (en) A kind of Vacuum sand pump fine sand screening plant and screening technique
CN203955525U (en) A kind of automatic feed dividing sealing vibrosieve equipment
CN108705030A (en) A kind of cast waste sand processing equipment
CN211587435U (en) Cement grinding aid production raw and other materials screening plant
CN109433818B (en) Movable soil repairing machine
CN112108359A (en) Sieving mechanism is used in ore processing with crushing function
CN208321306U (en) A kind of coal cinder screening plant
CN208194961U (en) A kind of multistage sieve material device
CN209379411U (en) A kind of multi-direction motion oscillations screen device
CN203253523U (en) Soil wet method vibration screening device
CN204847429U (en) Form material vibration screening batcher looses
CN202129220U (en) Air separation sieve device
CN109225579A (en) Calcium carbonate crushing dust collection device with decrease of noise functions
CN211217089U (en) Crushing vibrating screen
CN208230283U (en) A kind of building automatic sand screening device
CN107377387A (en) A kind of grain screening plant
CN108212752A (en) A kind of sand sieving machine with dedusting function
CN213378170U (en) Ore screening installation is used in mining
CN204866538U (en) Grains of sand screen(ing) machine tool for building

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20181120

WW01 Invention patent application withdrawn after publication