CN110681821A

CN110681821A - Resin sand treatment production line

Info

Publication number: CN110681821A
Application number: CN201911185641.8A
Authority: CN
Inventors: 林宗华
Original assignee: Hanshan Shengrong Machinery Parts Factory
Current assignee: Hanshan Shengrong Machinery Parts Factory
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-01-14
Anticipated expiration: 2039-11-27
Also published as: CN110681821B

Abstract

The invention discloses a resin sand treatment production line which comprises an old sand recycling and regenerating device, a new sand conveying device and a pneumatic device, wherein the old sand recycling and regenerating device comprises a roller shakeout machine, a vibration regenerating machine, a suspension magnetic separator and a rotor regenerating machine; the used sand is shaked out of the roller shakeout machine, crushed by a vibration regenerator, demagnetized by a magnetic separator, regenerated by a rotor regenerator, mixed with new sand and then fed into a double-arm sand mixer by using an air feeding device; heating compressed air is introduced into one side of the roller shakeout machine to evaporate water; the pneumatic device provides compressed air required by the roller shakeout machine and industrial air for the pneumatic device through an air compressor. The resin sand treatment production line disclosed by the invention utilizes the pneumatic device to install the roller shakeout machine and the air conveying device which need to input different compressed air respectively, so that the resources are reasonably utilized, the damage of a formed casting is reduced, and the regeneration and use values of the resin sand are improved.

Description

Resin sand treatment production line

Technical Field

The invention relates to the field of pig iron casting, in particular to a resin sand treatment production line.

Background

The resin sand is a particle made of thermoplastic acrylic or thermosetting amine materials, more than 70% of tools can be cast by the resin sand, a great amount of waste resin sand can be generated in the process of producing the resin sand casting tool, and the waste resin sand is not treated, so that not only can a great amount of waste of resources be caused, but also the environment pollution can be caused. Forming a casting mold after resin sand is poured, and if the binder in the casting mold is not irreversibly changed, only removing impurities, and recovering the original performance through ash absorption, cooling and remixing; in the case of sand molds and cores which are chemically hardened and in which the hardening reaction of the binder is irreversible, the used resin sand cannot be easily recycled, and resin sand recycling equipment and a production line are required.

After the resin sand is cast and molded, the used sand needs to be separated by a shakeout machine, and the used sand and the new sand are simultaneously conveyed to a conveying pipeline of a double-arm sand mixer and need to be conveyed by an air conveying device, so that the integration of the air conveying device is needed.

Disclosure of Invention

The invention aims to solve the problems and provides a resin sand treatment production line.

In order to achieve the purpose, the invention is realized by the following technical scheme: a resin sand processing production line comprises an old sand recycling and regenerating device, a new sand conveying device and a pneumatic device, wherein the old sand recycling and regenerating device comprises a roller shakeout machine, a vibration regenerating machine, a suspension magnetic separator and a rotor regenerating machine; the used sand is shaked out of the roller shakeout machine, crushed by a vibration regenerator, demagnetized by a suspended magnetic separator, regenerated by a rotor regenerator, mixed with new sand and then fed into a double-arm sand mixer by using an air feeding device; heating compressed air is introduced into one side of the roller shakeout machine to evaporate water; the pneumatic device provides compressed air required by the roller shakeout machine and industrial air for the pneumatic device through an air compressor.

Further, one side of the roller shakeout machine conveys used sand to an intermediate sand warehouse through a lifter, and the used sand stored in the intermediate sand warehouse is conveyed through a vibrating conveyor after being crushed by a vibrating regenerator; a suspended magnetic separator is arranged on one side of the vibrating conveyor; the used sand is demagnetized by a suspended magnetic separator and then enters a rotor regenerator for regeneration through a lifter; an air separator is arranged below the rotor regenerator; after the used sand is regenerated, the used sand is winnowed by an air separator and then enters a sand hopper through a lifter; a sand temperature regulator is also arranged between the sand hopper and the air separator; the used sand in the sand hopper finally enters a double-cavity sand warehouse through a lifter; the other side of the double-cavity sand warehouse is connected with a new sand conveying device through a hoister; and conveying the new sand from the new sand conveying device to a double-cavity sand warehouse, mixing the new sand with the regenerated old sand, then feeding the new sand into the double-arm sand mixer by using the air conveying device, and finally compacting the new sand at a compaction table arranged below the double-arm sand mixer.

Particularly, the pneumatic device comprises an air compressor, an oil-water separator, an industrial air storage tank, a dryer, a heater and a compressed air storage tank; a cooler is arranged between the air compressor and the oil-water separator and used for reducing the temperature of compressed air generated by the air compressor; the oil-water separator is connected with an industrial gas storage tank through an air valve; one side of the industrial gas storage tank is connected with a gas conveying device and used for driving mixed old sand and new sand to be conveyed to a conveying pipeline of a double-arm sand mixer, and the other side of the industrial gas storage tank enters a compressed air storage tank through a dryer and a heater; an air filter is arranged between the compressed air storage tank and the heater and used for filtering dry air.

In conclusion, the invention has the following beneficial effects: the resin sand treatment production line utilizes the pneumatic device to install the roller shakeout machine and the air conveying device which need to input different compressed air respectively, reasonably utilizes resources, reduces the damage of a formed casting, and improves the regeneration and use value of resin sand, and the concrete expression is as follows:

(1) according to the invention, different bucket elevators are used for conveying materials among equipment, so that the conveying capacity of the resin sand production line and the operation safety of the production line are enhanced;

(2) the method utilizes the vibration regenerating machine to crush the used sand, and the magnetic separator is suspended to demagnetize the used sand, so that the treatment on the used sand thoroughly improves the regeneration and use value of the resin sand;

(3) through heating compressed air, the operation of knockout, foundry goods cooling, the broken and cooling of molding sand can be accomplished simultaneously to the cylinder shakeout machine, integrates starting drive and improves the compressed air utilization ratio.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural diagram of a double-arm sand mixer of the present invention;

FIG. 3 is a schematic view of the pneumatic device of the present invention.

Detailed Description

The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.

Referring to fig. 1 to 3, a resin sand treatment production line comprises a used sand recycling and regenerating device, a new sand conveying device 14 and a pneumatic device, wherein the used sand recycling and regenerating device comprises a roller shakeout machine 1, a vibration regenerator 2, a suspension magnetic separator 3 and a rotor regenerator 4; the used sand is shaked out of a roller shakeout machine 1, crushed by a vibration regenerator 2, demagnetized by a suspended magnetic separator 3, regenerated by a rotor regenerator 4, mixed with new sand and then fed into a double-arm sand mixer 6 by an air supply device 5; introducing heated compressed air into one side of the roller shakeout machine 1 to evaporate water; the pneumatic device supplies compressed air required by the roller shakeout machine 1 and industrial air for the air supply device 5 via an air compressor 7.

One side of the roller shakeout machine 1 conveys used sand to an intermediate sand warehouse 8 through a lifter, and the used sand stored in the intermediate sand warehouse 8 is conveyed through a vibrating conveyor 9 after being crushed by a vibrating regenerator 2; one side of the vibrating conveyor 9 is provided with a suspended magnetic separator 3; the used sand is demagnetized by a suspension magnetic separator 3 and then enters a rotor regenerator 4 for regeneration through a lifter; an air separator 10 is arranged below the rotor regenerator 4; after the used sand is regenerated, the used sand is winnowed by an air separator 10 and then enters a sand hopper 11 through a lifter; a sand temperature regulator 12 is also arranged between the sand hopper 11 and the air separator 10; the used sand in the sand hopper 11 finally enters a double-cavity sand warehouse 13 through a lifter; the other side of the double-cavity sand warehouse 13 is connected with a new sand conveying device 14 through a hoister; the new sand is conveyed from the new sand conveying device 14 to the double-cavity sand warehouse 13 to be mixed with the regenerated used sand, then enters the double-arm sand mixer 6 by the air conveying device 5, and finally is compacted at a compaction 15 platform arranged below the double-arm sand mixer 6.

The pneumatic device comprises an air compressor 7, an oil-water separator 17, an industrial air storage tank 18, a dryer 19, a heater 20 and a compressed air storage tank 21; a cooler 22 is further arranged between the air compressor 7 and the oil-water separator 17 and used for reducing the temperature of the compressed air generated by the air compressor 7; the oil-water separator 17 is connected with an industrial gas storage tank 18 through an air valve 23; one side of an industrial air storage tank 18 is connected with an air conveying device 5 and used for driving mixed old sand and new sand to be conveyed to a conveying pipeline of a double-arm sand mixer 6, and the other side of the industrial air storage tank enters a compressed air storage tank 21 through a dryer 19 and a heater 20; an air filter 23 is further disposed between the compressed air storage tank 21 and the heater 20 for filtering the dry air.

The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a resin sand handles production line, it includes that used sand retrieves regenerating unit, new sand conveyor and pneumatic means, its characterized in that: the used sand recycling and regenerating device comprises a roller shakeout machine, a vibration regenerator, a suspended magnetic separator and a rotor regenerator; the used sand is shaked out of the roller shakeout machine, crushed by a vibration regenerator, demagnetized by a suspended magnetic separator, regenerated by a rotor regenerator, mixed with new sand and then fed into a double-arm sand mixer by using an air feeding device; heating compressed air is introduced into one side of the roller shakeout machine to evaporate water; the pneumatic device provides compressed air required by the roller shakeout machine and industrial air for the pneumatic device through an air compressor.

2. The resin sand processing production line according to claim 1, characterized in that: one side of the roller shakeout machine conveys used sand to an intermediate sand warehouse through a lifter, and the used sand stored in the intermediate sand warehouse is crushed by a vibration regenerator and then conveyed through a vibration conveyor; a suspended magnetic separator is arranged on one side of the vibrating conveyor; the used sand is demagnetized by a suspended magnetic separator and then enters a rotor regenerator for regeneration through a lifter; an air separator is arranged below the rotor regenerator; after the used sand is regenerated, the used sand is winnowed by an air separator and then enters a sand hopper through a lifter; a sand temperature regulator is also arranged between the sand hopper and the air separator; the used sand in the sand hopper finally enters a double-cavity sand warehouse through a lifter; the other side of the double-cavity sand warehouse is connected with a new sand conveying device through a hoister; and conveying the new sand from the new sand conveying device to a double-cavity sand warehouse, mixing the new sand with the regenerated old sand, then feeding the new sand into the double-arm sand mixer by using the air conveying device, and finally compacting the new sand at a compaction table arranged below the double-arm sand mixer.

3. The resin sand processing production line according to claim 1, characterized in that: the pneumatic device comprises an air compressor, an oil-water separator, an industrial air storage tank, a dryer, a heater and a compressed air storage tank; a cooler is arranged between the air compressor and the oil-water separator and used for reducing the temperature of compressed air generated by the air compressor; the oil-water separator is connected with an industrial gas storage tank through an air valve; one side of the industrial gas storage tank is connected with a gas conveying device and used for driving mixed old sand and new sand to be conveyed to a conveying pipeline of a double-arm sand mixer, and the other side of the industrial gas storage tank enters a compressed air storage tank through a dryer and a heater; an air filter is arranged between the compressed air storage tank and the heater and used for filtering dry air.