CN108994255A - A kind of antiquated sand regeneration technology of sand casting - Google Patents
A kind of antiquated sand regeneration technology of sand casting Download PDFInfo
- Publication number
- CN108994255A CN108994255A CN201811041672.1A CN201811041672A CN108994255A CN 108994255 A CN108994255 A CN 108994255A CN 201811041672 A CN201811041672 A CN 201811041672A CN 108994255 A CN108994255 A CN 108994255A
- Authority
- CN
- China
- Prior art keywords
- sand
- molding sand
- antiquated
- grinding device
- drive roll
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
- B22C5/0409—Blending, mixing, kneading or stirring; Methods therefor
- B22C5/0422—Devices having a fixed receptable with rotating tools, some or all of these tools being rolls or balls loosely mounted on their axis or loose balls in contact with the side wall or the bottom of the receptacle, e.g. with aerating means; "Devices of the Muller type"
- B22C5/0436—Devices having a fixed receptable with rotating tools, some or all of these tools being rolls or balls loosely mounted on their axis or loose balls in contact with the side wall or the bottom of the receptacle, e.g. with aerating means; "Devices of the Muller type" having a horizontal tool-driving shaft
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
- B22C5/10—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by dust separating
Abstract
The invention discloses a kind of antiquated sand regeneration technologies of sand casting, comprising the following steps: (1) dehumidifies: by molding sand exposure 3-4 hours under the sun, removing in molding sand 80% to 90% moisture；(2) it is crushed: the molding sand after dehumidifying being put into crushing mechanism and is crushed, makes molding sand granular size between 100-200 mesh；(3) blanking: broken molding sand is sent into lower hopper, is slowly fallen on the grinding device of lower section after lower hopper；(4) grind: drive roll drives driven voller rotation, grinds between the knockout falling into two rollers, destroys the resin film on molding sand surface, makes molding sand granular size between 50-100 mesh；(5) clean: molding sand falls on the magnetic grid below grinding device and removes metal fillings；(6) dedusting: the dust gas in grinding device is detached by air-introduced machine；By antiquated sand slowly being sent to grinding on grinding device, the resin film on effectively broken antiquated sand surface, and dust is detached, realize antiquated sand regeneration.
Description
Technical field
The present invention relates to sand casting technical fields, more specifically, it relates to which a kind of antiquated sand of sand casting regenerates work
Skill.
Background technique
Steel, iron and most of non-ferrous alloy castings can be obtained by sand mould casting method.As used in sand casting
Modeling Material it is cheap and easy to get, Casting mold manufacturing is easy, thus to the single-piece production of casting, produce by batch and mass production can fit
It answers.According to statistics, the every production 1t castings in China can produce about 1.2t antiquated sand.Currently, other than a small amount of antiquated sand regeneration, greatly
Based on abandoning, this is greatly to waste, but also will cause serious environmental pollution to limited resource for part, therefore, is given up
The processing and utilization of sand have become China's problem in the urgent need to address.
Antiquated sand regeneration is exactly using various physical chemistry means, and the resin film of removal waste sand particles surface attachment makes antiquated sand
A kind of antiquated sand treatment process for being restored of various processing performances, in the prior art by mixing plants such as dispersion machines to antiquated sand
Break process is carried out, tends not to effectively abolish resin film, reclaimed sand granular size is uneven, cannot directly use, therefore need to change
Into.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of antiquated sand of sand casting to regenerate work
Skill, the characteristics of capable of being ground to antiquated sand.
To achieve the above object, the present invention provides the following technical scheme that
A kind of antiquated sand regeneration technology of sand casting, which comprises the following steps:
(1) it dehumidifies: by molding sand exposure 3-4 hours under the sun, removing in molding sand 80% to 90% moisture；
(2) be crushed: the molding sand after dehumidifying is put into crushing mechanism and is crushed, make molding sand granular size 100-200 mesh it
Between；
(3) blanking: broken molding sand is sent into lower hopper, is slowly fallen on the grinding device of lower section after lower hopper；
(4) grind: under actuator driving, drive roll drives driven voller rotation, grinds between the knockout falling into two rollers, breaks
The resin film on bad molding sand surface, makes molding sand granular size between 50-100 mesh；
(5) clean: molding sand is fallen on the magnetic grid below grinding device, remains in the metal in molding sand by magnetic force removal
Bits；
(6) dedusting: the dust gas in grinding device is detached by air-introduced machine.
Preferably, flow of step (3) Sand after lower hopper is 1-8kg/min.
Preferably, the grinding device includes body, the drive roll and driven voller that are rotatably arranged on body, the body
Be provided with the actuator of connection drive roll, the body is magnetic grid close to bottom setting, the body side be provided with into
Port, the other side are provided with air-introduced machine and exhaust pipe.
Preferably, the drive roll is bonded to each other with driven voller.
Preferably, the drive roll and driven roller surface include grinding layer, and the grinding layer is by diamond dust composite adhesive
Composition.
Preferably, vibration machine is provided on the magnetic grid in the step (5).
Compared with prior art, the invention has the following advantages:
1, molding sand exposure is first used for moisture removal, convenient for being slid by lower hopper between two rollers, the falling speed of molding sand compared with
It to be slow, can be fully ground on mixing roll, effectively destruction resin film, make uniform granularity, clean and arrange through magnetic grid
Use can be directly recycled after gas dedusting；
2, drive roll and driven voller are bonded to each other, and promote grinding effect, and surface is covered with grinding layer, are main material, tool by diamond dust
There is the effect that hardness is big, wear-resisting, promotes grinding effect and service life；
3, magnetic grid vibration is driven by vibration machine, convenient for falling after separating molding sand with iron filings, improves reclaimed sand
Purity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment；
Fig. 2 is the actuator structural schematic diagram of the present embodiment.
In figure: 1, lower hopper；2, body；21, drive roll；22, driven voller；23, air inlet；24, air-introduced machine；241, it is vented
Pipe；25, actuator；3, grinding layer；4, magnetic grid；41, vibration machine.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
A kind of antiquated sand regeneration technology of sand casting comprising following steps:
(1) it dehumidifies: by molding sand exposure 3-4 hours under the sun, removing in molding sand 80% to 90% moisture；
(2) be crushed: the molding sand after dehumidifying is put into crushing mechanism and is crushed, make molding sand granular size 100-200 mesh it
Between, dispersion machine or high-speed mixer can be selected in crushing mechanism；
(3) blanking: broken molding sand is sent into lower hopper 1, is slowly fallen on the grinding device of lower section after lower hopper 1；
(4) grind: under the driving of actuator 25, drive roll 21 drives driven voller 22 to rotate, and carries out between the knockout falling into two rollers
Grinding destroys the resin film on molding sand surface, makes molding sand granular size between 50-100 mesh；
(5) clean: molding sand is fallen on the magnetic grid 4 below grinding device, remains in the metal in molding sand by magnetic force removal
Bits；
(6) dedusting: the dust gas in grinding device is detached by air-introduced machine 24.
Flow of step (3) Sand after lower hopper 1 is 1-8kg/min, and sand reclamation amount maximum hourly can
Close to half ton；
As shown, lower hopper 1 connects grinding device, grinding device includes body 2, the drive roll that is rotatably arranged on body 2
21 and driven voller 22, drive roll 21 be bonded to each other with driven voller 22, gap 0, body 2 be provided with connection drive roll 21 driving
Part 25, actuator 25 are motor, and the shaft of motor and drive roll 21 passes through V band connection, pass through drive roll 21 and drive driven voller 22
Rotation, drive roll 21 and 22 surface of driven voller include grinding layer 3, and grinding layer 3 is made of diamond dust composite adhesive.
The grid 4 that is magnetic is arranged close to bottom in body 2, and magnetic grid 4 is that metallic grid magnetizes, for sifting out regeneration
Metal impurities in sand are provided with vibration machine 41 on magnetic grid 4, are able to ascend impurity elimination efficiency by vibration.
Wherein side is provided with air inlet 23 to body 2, and air inlet 23 has strainer, and the other side is provided with air-introduced machine 24 and row
Tracheae 241, for detaching powder impurity and the resin film powder being grinded up to outside body 2.
The present embodiment is only explanation of the invention, is not limitation of the present invention, and those skilled in the art exist
It can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as in the present invention
Scope of the claims in all by the protection of Patent Law.
Claims (6)
1. a kind of antiquated sand regeneration technology of sand casting, which comprises the following steps:
(1) it dehumidifies: by molding sand exposure 3-4 hours under the sun, removing in molding sand 80% to 90% moisture；
(2) be crushed: the molding sand after dehumidifying is put into crushing mechanism and is crushed, make molding sand granular size 100-200 mesh it
Between；
(3) blanking: broken molding sand is sent into lower hopper, is slowly fallen on the grinding device of lower section after lower hopper；
(4) grind: under actuator driving, drive roll drives driven voller rotation, grinds between the knockout falling into two rollers, breaks
The resin film on bad molding sand surface, makes molding sand granular size between 50-100 mesh；
(5) clean: molding sand is fallen on the magnetic grid below grinding device, remains in the metal in molding sand by magnetic force removal
Bits；
(6) dedusting: the dust gas in grinding device is detached by air-introduced machine.
2. the antiquated sand regeneration technology of sand casting according to claim 1, it is characterised in that: step (3) Sand
Flow after lower hopper is 1-8kg/min.
3. the antiquated sand regeneration technology of sand casting according to claim 1, it is characterised in that: the grinding device includes machine
Body, the drive roll and driven voller being rotatably arranged on body, the body are provided with the actuator of connection drive roll, the body
The grid that is magnetic is set close to bottom, the body side is provided with air inlet, and the other side is provided with air-introduced machine and exhaust pipe.
4. the antiquated sand regeneration technology of sand casting according to claim 3, it is characterised in that: the drive roll and driven voller
It is bonded to each other.
5. the antiquated sand regeneration technology of sand casting according to claim 4, it is characterised in that: the drive roll and driven voller
Surface includes grinding layer, and the grinding layer is made of diamond dust composite adhesive.
6. the antiquated sand regeneration technology of sand casting according to claim 1, it is characterised in that: the magnetic in the step (5)
Vibration machine is provided on personality grid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041672.1A CN108994255A (en) | 2018-09-07 | 2018-09-07 | A kind of antiquated sand regeneration technology of sand casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041672.1A CN108994255A (en) | 2018-09-07 | 2018-09-07 | A kind of antiquated sand regeneration technology of sand casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108994255A true CN108994255A (en) | 2018-12-14 |
Family
ID=64590662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811041672.1A Pending CN108994255A (en) | 2018-09-07 | 2018-09-07 | A kind of antiquated sand regeneration technology of sand casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108994255A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252943A (en) * | 2019-06-12 | 2019-09-20 | 南通凯斯辛普森机械科技有限公司 | Antiquated sand thermal reclamation equipment and antiquated sand thermal reclamation technique |
| CN111069528A (en) * | 2019-12-17 | 2020-04-28 | 湖州吴兴珀莱机械厂 | Sand return recycling system for cast iron |
| CN113414345A (en) * | 2021-06-23 | 2021-09-21 | 晋江鹏发机械有限公司 | Resin sand regeneration system and regeneration method |
| CN116021002A (en) * | 2022-12-18 | 2023-04-28 | 南通新兴机械制造有限公司 | Casting device for sand prevention cast steel adhesion |
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| CN102233405A (en) * | 2010-04-27 | 2011-11-09 | 于彦奇 | Digital resin sand regeneration system |
| CN204867292U (en) * | 2015-07-01 | 2015-12-16 | 王乔 | Casting sand processing apparatus |
| CN206676493U (en) * | 2016-12-30 | 2017-11-28 | 赣州博立科技有限公司 | A kind of tungsten carbide Hubei Province formula roller pair breaking sieving equipment |
| CN206965885U (en) * | 2017-05-16 | 2018-02-06 | 云南省澄江县藕粉厂 | Lotus rhizome spiral cleaning is lifted and broken apart unit equipment |
| CN108136487A (en) * | 2015-10-15 | 2018-06-08 | 新东工业株式会社 | The regeneration method and regenerative system of sand |
-
2018
- 2018-09-07 CN CN201811041672.1A patent/CN108994255A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102233405A (en) * | 2010-04-27 | 2011-11-09 | 于彦奇 | Digital resin sand regeneration system |
| CN204867292U (en) * | 2015-07-01 | 2015-12-16 | 王乔 | Casting sand processing apparatus |
| CN108136487A (en) * | 2015-10-15 | 2018-06-08 | 新东工业株式会社 | The regeneration method and regenerative system of sand |
| CN206676493U (en) * | 2016-12-30 | 2017-11-28 | 赣州博立科技有限公司 | A kind of tungsten carbide Hubei Province formula roller pair breaking sieving equipment |
| CN206965885U (en) * | 2017-05-16 | 2018-02-06 | 云南省澄江县藕粉厂 | Lotus rhizome spiral cleaning is lifted and broken apart unit equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110252943A (en) * | 2019-06-12 | 2019-09-20 | 南通凯斯辛普森机械科技有限公司 | Antiquated sand thermal reclamation equipment and antiquated sand thermal reclamation technique |
| CN111069528A (en) * | 2019-12-17 | 2020-04-28 | 湖州吴兴珀莱机械厂 | Sand return recycling system for cast iron |
| CN111069528B (en) * | 2019-12-17 | 2021-07-13 | 山东临港有色金属有限公司 | Sand return recycling system for cast iron |
| CN113414345A (en) * | 2021-06-23 | 2021-09-21 | 晋江鹏发机械有限公司 | Resin sand regeneration system and regeneration method |
| CN116021002A (en) * | 2022-12-18 | 2023-04-28 | 南通新兴机械制造有限公司 | Casting device for sand prevention cast steel adhesion |
| CN116021002B (en) * | 2022-12-18 | 2023-12-22 | 南通新兴机械制造有限公司 | Casting device for sand prevention cast steel adhesion |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181214 |