CN212620016U

CN212620016U - Wet sand drying and screening device for building

Info

Publication number: CN212620016U
Application number: CN202021479360.1U
Authority: CN
Inventors: 马军; 马兵; 丁建超; 白少福
Original assignee: Ningxia Zhufengyuan New Building Materials Co ltd
Current assignee: Ningxia Zhufengyuan New Building Materials Co ltd
Priority date: 2020-07-24
Filing date: 2020-07-24
Publication date: 2021-02-26
Anticipated expiration: 2030-07-24

Abstract

Wet sand for building stoving screening plant includes drying device, dry sand screening plant, dust recovery device, dust conveyor, hoisting device, drying device's discharge gate and dry sand screening plant's feed inlet intercommunication, drying device and dry sand screening plant's gas outlet and dust recovery device's air inlet intercommunication to collect the dust in the air, dust recovery device's discharge gate and dust conveyor's feed inlet intercommunication, dust conveyor's discharge gate, dry sand screening plant's discharge gate and hoisting device's feed inlet intercommunication, in order to go into hoisting device respectively with the fine sand and the coarse sand of separating. Through setting up dry sand screening plant behind drying device, and with drying device and dry sand screening plant's gas outlet and dust recovery device's air inlet intercommunication to carry out recycle with the dust of stoving process and screening in-process, effectively prevented the diffusion of dust to the outside air.

Description

Wet sand drying and screening device for building

Technical Field

The utility model relates to a building material processing equipment technical field especially relates to a wet sand stoving screening plant for building.

Background

In the prior art, raw material wet sand of dry-mixed mortar is dried, then is transported and lifted, and is screened according to the particle size of the wet sand. The stoving of wet sand can introduce hot-blastly usually, through hot-blast stoving back, can suspend in the drying device a large amount of dust, pours the dry sand into the in-process that the hopper carried out the promotion, and the dust can flow along with the pipeline to the polluted environment. Meanwhile, in the subsequent screening process, a vibrating screen is usually used for processing, and a large amount of dust is generated to pollute the environment when the vibrating screen works.

Disclosure of Invention

In view of the above, there is a need for a construction wet sand drying and screening device that reduces dust diffusion.

The utility model provides a wet sand for building is dried and is sieved device includes drying device, dry sand sieving mechanism, dust recovery unit, dust conveyor, hoisting device, drying device's discharge gate and dry sand sieving mechanism's feed inlet intercommunication, drying device and dry sand sieving mechanism's gas outlet and dust recovery unit's air inlet intercommunication to collect the dust in the air, dust recovery unit's discharge gate and dust conveyor's feed inlet intercommunication, dust conveyor's discharge gate, dry sand sieving mechanism's discharge gate and hoisting device's feed inlet intercommunication, in order to go into hoisting device respectively with the fine sand and the coarse sand of separating.

Preferably, the dry sand screening device comprises a vibrating screen and a dust cover, the upper end of the vibrating screen is connected with the dust cover in a sealing mode, a dry sand feeding hole is formed in the upper end of the dust cover, a sealing rubber sleeve is arranged at the dry sand feeding hole and the discharging hole of the drying device to prevent the vibrating screen from impacting the drying device during vibration, an air outlet is further formed in the upper end of the dust cover, and the air outlet of the dust cover is communicated with the tail end of the drying device through a pipeline to discharge air containing dust into the drying device.

Preferably, the dust recovery device comprises an air inlet pipeline, a dust recovery chamber, a pulse dust collector and a negative pressure fan, one end of the air inlet pipeline is communicated with the upper end of a discharge port of the drying device, the other end of the air inlet pipeline is communicated with the dust recovery chamber, the pulse dust collector is arranged in the dust recovery chamber to filter air entering the dust recovery chamber, and the negative pressure fan is communicated with an air outlet of the pulse dust collector to promote air in the drying device to flow into the dust recovery chamber.

Preferably, dust conveyor includes pipeline, auger delivery blade, driving motor, pipeline's feed end and dust recovery room's discharge gate intercommunication, it is corresponding, and the bottom of dust recovery room is the toper to be convenient for collect the dust from pulse dust collector whereabouts, the discharge end of conveying pipeline and hoisting device's feed inlet intercommunication, auger delivery blade is arranged in pipeline, in order to carry the dust, auger delivery blade's pivot and driving motor's pivot are connected, so that driving motor drives auger delivery blade and rotates.

Preferably, the lifting device comprises a coarse sand storage hopper, a coarse sand elevator, a fine sand storage hopper and a fine sand elevator, the feed inlet of the coarse sand storage hopper is communicated with the coarse sand discharge outlet of the vibrating device, the discharge outlet of the coarse sand storage hopper is communicated with the feed inlet of the coarse sand elevator, the feed inlet of the fine sand storage hopper is communicated with the fine sand discharge outlet of the vibrating device and the discharge outlet of the dust conveying device, and the discharge outlet of the fine sand storage hopper is communicated with the feed inlet of the fine sand elevator.

Has the advantages that: wet sand for building stoving screening plant includes drying device, dry sand screening plant, dust recovery device, dust conveyor, hoisting device, drying device's discharge gate and dry sand screening plant's feed inlet intercommunication, drying device and dry sand screening plant's gas outlet and dust recovery device's air inlet intercommunication to collect the dust in the air, dust recovery device's discharge gate and dust conveyor's feed inlet intercommunication, dust conveyor's discharge gate, dry sand screening plant's discharge gate and hoisting device's feed inlet intercommunication, in order to go into hoisting device respectively with the fine sand and the coarse sand of separating. Through setting up dry sand screening plant behind drying device, and with drying device and dry sand screening plant's gas outlet and dust recovery device's air inlet intercommunication to carry out recycle with the dust of stoving process and screening in-process, effectively prevented the diffusion of dust to the outside air.

Drawings

Fig. 1 is the utility model discloses a wet sand for building is dried and is sieved device's a structural schematic diagram of preferred angle.

Fig. 2 is the structural schematic diagram of another preferred angle of the wet sand drying and screening device for building of the utility model.

Fig. 3 is the structural schematic diagram of another preferred angle of the wet sand drying and screening device for building of the utility model.

Fig. 4 is a partial structural schematic diagram of fig. 3.

Fig. 5 is another partial structural diagram of fig. 3.

In the figure: the device comprises a wet sand drying and screening device 10 for the building, a drying device 20, a dry sand screening device 30, a vibrating screen 301, a dust cover 302, a sealing rubber sleeve 303, a dust recovery device 40, an air inlet pipeline 401, a dust recovery chamber 402, a pulse dust collector 403, a negative pressure fan 404, a dust conveying device 50, a conveying pipeline 501, a driving motor 502, a lifting device 60, a coarse sand storage hopper 601, a coarse sand lifting machine 602, a fine sand storage hopper 603 and a fine sand lifting machine 604.

Detailed Description

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Referring to fig. 1 to 5, a wet sand drying and screening device 10 for buildings includes a drying device 20, a dry sand screening device 30, a dust recycling device 40, a dust conveying device 50, and a lifting device 60, wherein a discharge port of the drying device 20 is communicated with a feed port of the dry sand screening device 30, air outlets of the drying device 20 and the dry sand screening device 30 are communicated with an air inlet of the dust recycling device 40 to collect dust in air, a discharge port of the dust recycling device 40 is communicated with a feed port of the dust conveying device 50, and a discharge port of the dust conveying device 50 and a discharge port of the dry sand screening device 30 are communicated with a feed port of the lifting device 60 to transfer separated fine sand and coarse sand to the lifting device 60 respectively.

Further, the dry sand screening device 30 comprises a vibrating screen 301 and a dust cover 302, the upper end of the vibrating screen 301 is connected with the dust cover 302 in a sealing mode, a dry sand feeding hole is formed in the upper end of the dust cover 302, a sealing rubber sleeve 303 is arranged at the dry sand feeding hole and the discharging hole of the drying device 20 to prevent the vibrating screen 301 from impacting the drying device 20 during vibration, an air outlet is further formed in the upper end of the dust cover 302, and the air outlet of the dust cover 302 is communicated with the tail end of the drying device 20 through a pipeline to discharge air containing dust into the drying device 20.

The vibration frequency of the vibrating screen 301 during the screening process is high, and the structure of the drying device 20 is bulky, and a buffering mechanism is not generally provided. If the vibrating screen 301 is directly connected to the outlet of the drying device 20 by a hard connection such as flange connection, damage may be caused to the vibrating screen 301 and the components of the drying device 20. By arranging the sealing rubber sleeve 303 between the dust cover 302 and the drying device 20, vibration can be buffered, and the possibility of damage to components is effectively reduced.

Further, the dust recycling device 40 includes an air inlet duct 401, a dust recycling chamber 402, a pulse dust collector 403, and a negative pressure air fan 404, wherein one end of the air inlet duct 401 is communicated with the upper end of the discharge port of the drying device 20, the other end of the air inlet duct 401 is communicated with the dust recycling chamber 402, the pulse dust collector 403 is disposed in the dust recycling chamber 402 to filter the air entering the dust recycling chamber 402, and the negative pressure air fan 404 is communicated with the air outlet of the pulse dust collector 403 to promote the air in the drying device 20 to flow into the dust recycling chamber 402.

The air containing dust entering the dust recovery chamber 402 is treated by the pulse dust collector 403, and after the dust is attached to the dust collecting cloth bag of the pulse dust collector 403 for a period of time, the compressed air is blown to make the dust fall to the bottom of the dust recovery chamber 402. The filtered air is discharged from the dust recovery chamber 402 along the duct of the pulse dust collector 403 by the negative pressure fan 404.

The vibrating screen 301 can generate a large amount of dust in the vibrating process, an air outlet is formed in the upper end of the dust cover 302 and is communicated with the drying device 20 through a pipeline, and the inside of the drying device 20 is in a negative pressure state under the action of the negative pressure fan 404. The air in the dust cover 302 and the air in the drying device 20 enter the dust recycling chamber 402 to be absorbed under the action of the negative pressure fan 404, so that the dust is prevented from being diffused to the outside as much as possible. Meanwhile, the dust can be recycled as fine sand to be utilized, and the effects of energy conservation and environmental protection are achieved.

Further, the dust conveying device 50 includes a conveying pipeline 501, a spiral conveying blade and a driving motor 502, a feeding end of the conveying pipeline 501 is communicated with a discharging port of the dust recovery chamber 402, correspondingly, the bottom of the dust recovery chamber 402 is conical so as to collect dust falling from the pulse dust collector 403, a discharging end of the conveying pipeline is communicated with a feeding port of the lifting device 60, the spiral conveying blade is located in the conveying pipeline 501 so as to convey the dust, and a rotating shaft of the spiral conveying blade is connected with a rotating shaft of the driving motor 502 so that the driving motor 502 drives the spiral conveying blade to rotate.

Dust falling to the bottom of the dust recycling chamber 402 will slide directly into the conveying duct 501. The particles of the dust are smaller, and the finished product standard of the fine sand is met. The dust is discharged into the lifting device 60 for transport by the action of the screw conveyor blades. In an actual working environment, the positions of the dust recovery chamber 402 and the lifting device 60 are not in a straight line, so the conveying pipe 501 can be provided in multiple stages to achieve turnover. Correspondingly, the screw conveying blade is also provided with a plurality of sections, and each section of the screw conveying blade is driven by a driving motor 502.

Further, the lifting device 60 includes a coarse sand storage hopper 601, a coarse sand elevator 602, a fine sand storage hopper 603, and a fine sand elevator 604, a feed inlet of the coarse sand storage hopper 601 is communicated with a coarse sand discharge outlet of the vibrating device, a discharge outlet of the coarse sand storage hopper 601 is communicated with a feed inlet of the coarse sand elevator 602, a feed inlet of the fine sand storage hopper 603 is communicated with a fine sand discharge outlet of the vibrating device and a discharge outlet of the dust conveying device 50, and a discharge outlet of the fine sand storage hopper 603 is communicated with a feed inlet of the fine sand elevator 604.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a wet sand for building is dried and is sieved which characterized in that: including drying device, dry sand screening plant, dust recovery device, dust conveyor, hoisting device, drying device's discharge gate and dry sand screening plant's feed inlet intercommunication, drying device and dry sand screening plant's gas outlet and dust recovery device's air inlet intercommunication to collect the dust in the air, dust recovery device's discharge gate and dust conveyor's feed inlet intercommunication, dust conveyor's discharge gate, dry sand screening plant's discharge gate and hoisting device's feed inlet intercommunication, in order to transfer into hoisting device respectively with the fine sand and the coarse sand that separate out.

2. The wet sand drying and screening device for buildings as claimed in claim 1, wherein: the dry sand screening device comprises a vibrating screen and a dust cover, the upper end of the vibrating screen is connected with the dust cover in a sealing mode, a dry sand feeding hole is formed in the upper end of the dust cover, a sealing rubber sleeve is arranged at the dry sand feeding hole and the discharging hole of the drying device to prevent the vibrating screen from impacting the drying device during vibration, a gas outlet is further formed in the upper end of the dust cover, and the gas outlet of the dust cover is communicated with the tail end of the drying device through a pipeline to discharge air containing dust into the drying device.

3. The wet sand drying and screening device for buildings as claimed in claim 1, wherein: the dust recovery device comprises an air inlet pipeline, a dust recovery chamber, a pulse dust collector and a negative pressure fan, wherein one end of the air inlet pipeline is communicated with the upper end of a discharge port of the drying device, the other end of the air inlet pipeline is communicated with the dust recovery chamber, the pulse dust collector is arranged in the dust recovery chamber to filter air entering the dust recovery chamber, and the negative pressure fan is communicated with an air outlet of the pulse dust collector to promote air in the drying device to flow into the dust recovery chamber.

4. The wet sand drying and screening device for buildings as claimed in claim 1, wherein: dust conveyor includes pipeline, screw conveyor blade, driving motor, pipeline's feed end and the discharge gate intercommunication of dust recovery room, it is corresponding, and the bottom of dust recovery room is the toper to be convenient for collect the dust from pulse dust collector whereabouts, the discharge end of pipeline and hoisting device's feed inlet intercommunication, screw conveyor blade are arranged in pipeline, in order to carry the dust, screw conveyor blade's pivot and driving motor's pivot are connected, so that driving motor drives screw conveyor blade and rotates.

5. The wet sand drying and screening device for buildings as claimed in claim 1, wherein: the lifting device comprises a coarse sand storage hopper, a coarse sand lifting machine, a fine sand storage hopper and a fine sand lifting machine, wherein a feed inlet of the coarse sand storage hopper is communicated with a coarse sand discharge port of the vibrating device, a discharge port of the coarse sand storage hopper is communicated with a feed inlet of the coarse sand lifting machine, a feed inlet of the fine sand storage hopper is communicated with a fine sand discharge port of the vibrating device and a discharge port of the dust conveying device, and a discharge port of the fine sand storage hopper is communicated with a feed inlet of the fine sand lifting machine.