CN109107316A - A kind of dust collecting process of sand casting reclaimed sand - Google Patents
A kind of dust collecting process of sand casting reclaimed sand Download PDFInfo
- Publication number
- CN109107316A CN109107316A CN201811041667.0A CN201811041667A CN109107316A CN 109107316 A CN109107316 A CN 109107316A CN 201811041667 A CN201811041667 A CN 201811041667A CN 109107316 A CN109107316 A CN 109107316A
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- China
- Prior art keywords
- sand
- reclaimed sand
- spray
- cleaning case
- dust collecting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/04—Regenerating the washing fluid
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Of Particles Using Liquids (AREA)
Abstract
The invention discloses a kind of dust collecting process of sand casting reclaimed sand, comprising the following steps: (1) blanking: reclaimed sand is placed in funnel, flows slowly into reclaimed sand in the dust cleaning case of lower section；(2) dedusting: in reclaimed sand dropping process, being dispelled knockout by the blowning installation of dedusting chamber interior wall, so that the reclaimed sand of granularity 100-150 mesh is dropped down onto dust cleaning case bottom and is collected, remaining dusty gas exhaust steam passage above dust cleaning case is sent out by air-introduced machine；(3) spray: dusty gas enters in the sedimentation basin in spray column from exhaust steam passage, while spray head sprays the exhaust gas of rising, passes through the gas outlet discharge above spray column after exhaust-gas treatment；(4) it precipitates: after spray, by dosing tank to flocculant is added in sedimentation basin, standing between 30min to 50min, make contamination precipitation；(5) it separates: the upper layer clear water in sedimentation basin being discharged by suction pump and drinking-water pipe, sediment is discharged by blowdown valve.
Description
Technical field
The present invention relates to sand casting technical fields, more specifically, it relates to which a kind of sand casting reclaimed sand removes
Dirt technique.
Background technique
A large amount of solid waste can be generated in sand casting, be mainly antiquated sand, it is various to have with the development of industry
The extensive use of machine, inorganic binder causes the harmful components contained in antiquated sand more and more, such as organic resin binder
Remaining aldehyde, phenol, benzene, potassium, isocyanide, sulfide etc. in antiquated sand, in inorganic binder antiquated sand remaining alkali, phenol etc. it is harmful at
Point.Antiquated sand containing this kind of harmful components, by rain erosion after discharge, harmful components will pollute rivers and lakes, or even dirty
Contaminate life water source.Regeneration is carried out to antiquated sand, valuable fresh sand resource can be saved, is conducive to environmental protection, reduces old sand
Caused environmental pollution is abandoned, casting cost is reduced, economizes on resources.Antiquated sand regeneration is exactly to be gone using various physical chemistry means
Except the inert coating of waste sand particles surface attachment, a kind of antiquated sand treatment process for making the various processing performances of antiquated sand be restored.
But it cannot directly be used in ground broken old sand there are still the residual such as a large amount of sand dusts, organic matter, iron powder
In casting, if not being pocessed dust recycling can cause seriously to pollute into air to surrounding production environment, while can also damage
The health of evil worker.
Summary of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of dedusting of sand casting reclaimed sand
Technique has the advantage that can remove dust and impurity in reclaimed sand.
To achieve the above object, the present invention provides the following technical scheme that
A kind of dust collecting process of sand casting reclaimed sand, which comprises the following steps:
(1) blanking: reclaimed sand is placed in funnel, flows slowly into reclaimed sand in the dust cleaning case of lower section；
(2) dedusting: in reclaimed sand dropping process, knockout is dispelled by the blowning installation of dedusting chamber interior wall, makes granularity 100-
The reclaimed sand of 150 mesh drops down onto dust cleaning case bottom and is collected, remaining dusty gas exhaust steam passage above dust cleaning case passes through air-introduced machine
It sends out；
(3) spray: dusty gas enters in the sedimentation basin in spray column from exhaust steam passage, at the same spray head to the exhaust gas of rising into
Row sprays, and passes through the gas outlet discharge above spray column after exhaust-gas treatment；
(4) it precipitates: after spray, by dosing tank to flocculant is added in sedimentation basin, standing between 30min to 50min, make
Contamination precipitation；
(5) it separates: the upper layer clear water in sedimentation basin being discharged by suction pump and drinking-water pipe, is arranged sediment by blowdown valve
Out.
Preferably, funnel bottom described in step (1) includes a supervisor and more branch pipes.
Preferably, be provided with the auger for reclaimed sand of stirring in funnel described in step (1), the funnel be provided with
The actuator of auger connection.
Preferably, blowning installation described in step (2) includes being arranged at intervals on dedusting chamber interior wall and being located at sustained height
Air gun, the air gun is directed toward the funnel obliquely.
Preferably, dust cleaning case described in step (2) is provided with the magnetic grid for adsorbing metal bits at bottom.
Preferably, gas outlet is located in spray column described in step (3) and is provided with humidification strainer.
Compared with prior art, the invention has the following advantages:
1, it is stirred by funnel to reclaimed sand, promotes the uniformity and prevent to block, after reclaimed sand is fallen, filled by blowing
It sets, knockout is dispelled, by gravity fall to dust cleaning case bottom, remaining powder particle drifts the reclaimed sand of 100-150 under wind-force
In dust cleaning case, sent out by air-introduced machine；
2, it by spray, so that impurity is fallen into sedimentation basin, is discharged away, not will cause after the humidified strainer filtering of remaining gas
Pollution；
3, flocculant is added to sedimentation basin by dosing tank, can accelerates settling velocity, after the completion of precipitating, by supernatant liquor and impurity
Separately discharge reduces pollution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the present embodiment.
In figure: 1, funnel；11, auger；12, actuator；13, it is responsible for；131, branch pipe；2, dust cleaning case；21, air gun；211,
Tracheae；212, air pump；22, air-introduced machine；221, exhaust steam passage；23, magnetic grid；3, spray column；31, spray head；32, outlet
Mouthful；321, strainer is humidified；33, sedimentation basin；331, dosing tank；332, drinking-water pipe；333, water pump；334, blowdown valve.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
A kind of dust collecting process of sand casting reclaimed sand comprising following steps:
(1) blanking: reclaimed sand is placed in funnel 1, flows slowly into reclaimed sand in the dust cleaning case 2 of lower section；
(2) dedusting: in reclaimed sand dropping process, knockout is dispelled by the blowning installation of 2 inner wall of dust cleaning case, makes granularity 100-
The reclaimed sand of 150 mesh drops down onto 2 bottom of dust cleaning case and is collected, remaining dusty gas is from exhaust steam passage 221 above dust cleaning case 2 by drawing
Blower 22 is sent out；
(3) spray: dusty gas enters in the sedimentation basin 33 in spray column 3 from exhaust steam passage 221, while 31 pairs of spray head risings
Exhaust gas sprayed, discharged after exhaust-gas treatment by the gas outlet 32 of the top of spray column 3；
(4) precipitate: after spray, by dosing tank 331 to flocculant is added in sedimentation basin 33, stand 30min to 50min it
Between, make contamination precipitation；
(5) it separates: the upper layer clear water in sedimentation basin 33 being discharged by suction pump 333 and drinking-water pipe 332, passes through blowdown valve 334
Sediment is discharged.
As shown, in step (1) 1 bottom of funnel include 13 and Duo Gen of a supervisor branch pipe 131, be used for by reclaimed sand into
Row shunts, and is easy to be dispelled, and promotes the separating effect of reclaimed sand and impurity.It is provided in funnel 1 for stirring again in step (1)
The auger 11 of greensand, funnel 1 are provided with the actuator 12 connecting with auger 11,12 motor of actuator, motor and 11 shaft of auger
It is connected by V belt translation.Funnel 1 is connected with dust cleaning case 2, and exhaust steam passage 221 and air-introduced machine 22 are provided with above dust cleaning case 2.
Exhaust steam passage 221 is connected with spray column 3, and spray head 31 is provided in spray column 3, is provided with out above spray head 31
Port 32, gas are discharged into after spraying excessively from gas outlet 32.
3 bottom of spray column is provided with sedimentation basin 33, and dosing tank 331 is provided in sedimentation basin 33, is provided with flocculant, is passed through
Flocculant is added, increases settling velocity；Sedimentation basin 33 is provided with drinking-water pipe 332, and drinking-water pipe 332 is connected with suction pump 333, precipitating
33 bottom of pond is provided with blowdown valve 334, is respectively used to discharge upper layer clear water and lower sediment.
Blowning installation includes the air gun 21 for being arranged at intervals on 2 inner wall of dust cleaning case and being located at sustained height, gas in step (2)
Rifle 21 is directed toward funnel 1 obliquely, and air gun 21 is connected with tracheae 211 and air pump 212 jointly, and promotion dispels effect.
Dust cleaning case 2 is provided with the magnetic grid 23 for adsorbing metal bits at bottom in step (2), further removes
Metallic dust class impurity.
It is located at gas outlet 32 in spray column 3 in step (3) and is provided with humidification strainer 321, is remained for adsorbing in other
Dust, reduce exhaust emission.
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 dust collecting process of sand casting reclaimed sand, which comprises the following steps:
(1) blanking: reclaimed sand is placed in funnel, flows slowly into reclaimed sand in the dust cleaning case of lower section；
(2) dedusting: in reclaimed sand dropping process, knockout is dispelled by the blowning installation of dedusting chamber interior wall, makes granularity 100-
The reclaimed sand of 150 mesh drops down onto dust cleaning case bottom and is collected, remaining dusty gas exhaust steam passage above dust cleaning case passes through air-introduced machine
It sends out；
(3) spray: dusty gas enters in the sedimentation basin in spray column from exhaust steam passage, at the same spray head to the exhaust gas of rising into
Row sprays, and passes through the gas outlet discharge above spray column after exhaust-gas treatment；
(4) it precipitates: after spray, by dosing tank to flocculant is added in sedimentation basin, standing between 30min to 50min, make
Contamination precipitation；
(5) it separates: the upper layer clear water in sedimentation basin being discharged by suction pump and drinking-water pipe, is arranged sediment by blowdown valve
Out.
2. the dust collecting process of sand casting reclaimed sand according to claim 1, it is characterised in that: described in step (1)
Funnel bottom includes a supervisor and more branch pipes.
3. the dust collecting process of sand casting reclaimed sand according to claim 1, it is characterised in that: described in step (1)
The auger for reclaimed sand of stirring is provided in funnel, the funnel is provided with the actuator connecting with auger.
4. the dust collecting process of sand casting reclaimed sand according to claim 1, it is characterised in that: described in step (2)
Blowning installation includes the air gun for being arranged at intervals on dedusting chamber interior wall and being located at sustained height, described in the air gun is directed toward obliquely
Funnel.
5. the dust collecting process of sand casting reclaimed sand according to claim 1, it is characterised in that: described in step (2)
Dust cleaning case is provided with the magnetic grid for adsorbing metal bits at bottom.
6. the dust collecting process of sand casting reclaimed sand according to claim 1, it is characterised in that: described in step (3)
Spray column in be located at gas outlet be provided with humidification strainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041667.0A CN109107316A (en) | 2018-09-07 | 2018-09-07 | A kind of dust collecting process of sand casting reclaimed sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811041667.0A CN109107316A (en) | 2018-09-07 | 2018-09-07 | A kind of dust collecting process of sand casting reclaimed sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109107316A true CN109107316A (en) | 2019-01-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811041667.0A Pending CN109107316A (en) | 2018-09-07 | 2018-09-07 | A kind of dust collecting process of sand casting reclaimed sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109107316A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1862211A1 (en) * | 2001-10-17 | 2007-12-05 | Mitsubishi Heavy Industries, Ltd. | Flue gaz desulfurization apparatus, flue gas desulfurization system |
| CN102990001A (en) * | 2012-12-07 | 2013-03-27 | 青岛通力机械制造有限公司 | Air-separating and magnetic-separating machine |
| CA2611375C (en) * | 2005-06-14 | 2014-06-03 | Albert Fontaine | Method for recovering clay |
| CN203954983U (en) * | 2014-07-22 | 2014-11-26 | 陕西平阳风机有限公司 | Composite type desulfurating dust removing device for flue gas |
| CN205435302U (en) * | 2015-12-01 | 2016-08-10 | 赣州市宝鼎环保科技有限公司 | Novel dedusting device |
| CN106670380A (en) * | 2016-12-28 | 2017-05-17 | 池州恒和精密机械有限公司 | Used casting sand recycling device |
| CN107570270A (en) * | 2017-10-10 | 2018-01-12 | 李云 | A kind of light catalyzed coating apparatus for grinding and dispersing |
| CN207708763U (en) * | 2017-12-26 | 2018-08-10 | 山东百纳瑞分析仪器科技有限公司 | Waste gas dust-removal device |
-
2018
- 2018-09-07 CN CN201811041667.0A patent/CN109107316A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1862211A1 (en) * | 2001-10-17 | 2007-12-05 | Mitsubishi Heavy Industries, Ltd. | Flue gaz desulfurization apparatus, flue gas desulfurization system |
| CA2611375C (en) * | 2005-06-14 | 2014-06-03 | Albert Fontaine | Method for recovering clay |
| CN102990001A (en) * | 2012-12-07 | 2013-03-27 | 青岛通力机械制造有限公司 | Air-separating and magnetic-separating machine |
| CN203954983U (en) * | 2014-07-22 | 2014-11-26 | 陕西平阳风机有限公司 | Composite type desulfurating dust removing device for flue gas |
| CN205435302U (en) * | 2015-12-01 | 2016-08-10 | 赣州市宝鼎环保科技有限公司 | Novel dedusting device |
| CN106670380A (en) * | 2016-12-28 | 2017-05-17 | 池州恒和精密机械有限公司 | Used casting sand recycling device |
| CN107570270A (en) * | 2017-10-10 | 2018-01-12 | 李云 | A kind of light catalyzed coating apparatus for grinding and dispersing |
| CN207708763U (en) * | 2017-12-26 | 2018-08-10 | 山东百纳瑞分析仪器科技有限公司 | Waste gas dust-removal device |
Non-Patent Citations (1)
| Title |
|---|
| 慕成斌: "《通信光纤光缆制造设备及产业发展》", 31 July 2017, 同济大学出版社 * |
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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: 20190101 |