CN111910078B - Method for removing attachments on aluminum template and remelting method - Google Patents
Method for removing attachments on aluminum template and remelting method Download PDFInfo
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- CN111910078B CN111910078B CN202010761416.0A CN202010761416A CN111910078B CN 111910078 B CN111910078 B CN 111910078B CN 202010761416 A CN202010761416 A CN 202010761416A CN 111910078 B CN111910078 B CN 111910078B
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- kiln
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
- C22B7/004—Dry processes separating two or more metals by melting out (liquation), i.e. heating above the temperature of the lower melting metal component(s); by fractional crystallisation (controlled freezing)
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B21/00—Obtaining aluminium
- C22B21/0007—Preliminary treatment of ores or scrap or any other metal source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Manufacture And Refinement Of Metals (AREA)
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- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention relates to a method for removing attachments on an aluminum template and a remelting method, wherein the attachments comprise cement; the method comprises the following steps: providing a rotary kiln; the rotary kiln comprises a rotary cylinder body and an inner cylinder body arranged in the rotary cylinder body, wherein the inner cylinder body is fixedly connected with the rotary cylinder body, a gap is reserved between the inner cylinder body and the rotary cylinder body, and a plurality of through holes penetrating through the inner wall and the outer wall of the inner cylinder body are formed in the inner cylinder body; the kiln head to the kiln tail of the rotary kiln gradually inclines downwards, the kiln tail of the rotary kiln is provided with a kiln tail cover communicated with the rotary kiln, the kiln tail cover is provided with a heat source inlet, and the bottom of the kiln tail cover is provided with a slag discharge port; and (3) conveying the aluminum template to be treated into the inner cylinder body of the rotary kiln from the kiln head of the rotary kiln, heating, raising the temperature of the aluminum template in the rotary kiln to 400 ℃ of 350-. The invention can realize the efficient cleaning of the attachments on the surface of the aluminum template.
Description
Technical Field
The invention relates to a method for removing attachments on an aluminum template and a remelting method.
Background
The aluminum template is a new generation template system after the wood template, bamboo, wood plywood and steel template. The aluminum alloy formwork is a formwork which is made of aluminum alloy sections as main materials through machining, welding and other processes and is suitable for concrete engineering.
When the aluminum template is used, attachments such as cement and the like are continuously accumulated on the surface of the aluminum plate; before remelting, the cement on the aluminum template is usually removed by means of manual cleaning, shot blasting, beating and the like; then adding the mixture into a melting furnace for remelting and casting; in addition, in the process of repeated use, the pouring quality can be affected if the surface is not cleaned by cement and other attached crops. Therefore, the problems of high cleaning difficulty, high labor intensity, high cost and the like exist in the cleaning of attachments on the aluminum template at present.
Disclosure of Invention
In view of the defects of the prior art, an object of the present invention is to provide a method for removing attachments from an aluminum template, so as to achieve efficient cleaning of the attachments on the aluminum template; the second purpose of the invention is to provide a method for remelting the aluminum template.
The technical scheme of the invention is as follows:
a method for removing an adherent on an aluminum form, the adherent comprising cement; the method comprises the following steps:
s1, providing a rotary kiln;
the rotary kiln comprises a rotary cylinder body and an inner cylinder body arranged in the rotary cylinder body, wherein the inner cylinder body is fixedly connected with the rotary cylinder body, a gap is reserved between the inner cylinder body and the rotary cylinder body, and a plurality of through holes penetrating through the inner wall and the outer wall of the inner cylinder body are formed in the inner cylinder body; the kiln head to the kiln tail of the rotary kiln gradually inclines downwards, the kiln tail of the rotary kiln is provided with a kiln tail cover communicated with the rotary kiln, the kiln tail cover is provided with a heat source inlet, and the bottom of the kiln tail cover is provided with a slag discharge port;
s2, conveying the aluminum template to be processed into the inner cylinder of the rotary kiln from the kiln head of the rotary kiln, heating, raising the temperature of the aluminum template in the rotary kiln to 350-400 ℃, and simultaneously controlling the rotating speed of the rotary kiln to be 3-8r/min so as to separate the attachments from the aluminum template.
Optionally, the additive concrete or cement coagulum.
Furthermore, the length of the rotary cylinder is 8-14m, so that the aluminum template has a longer running path in the rotary kiln, and the attached matter cleaning effect is further improved.
Further, the width of the gap between the inner cylinder and the rotary cylinder is 10-20cm, and further 12-18 cm.
Further, the rotating cylinder and the inner cylinder are concentric to a central axis. Optionally, the diameter of the inner cylinder body is 40-60 cm.
Further, the through holes are distributed in sequence along the length direction of the inner cylinder.
Furthermore, the through hole is a circular hole with the diameter of 45-60 mm.
Furthermore, the inclination angle of the rotary kiln is 2-6 degrees.
Further, in S2, the rotation speed of the rotary kiln is 4-6 r/min.
Further, in S2, the temperature of the aluminum mold plate in the rotary kiln is raised to 360-380 ℃.
Based on the same invention concept, the invention also provides a remelting method of the aluminum template, which is characterized in that the aluminum template treated by the method is sent into an aluminum melting furnace through a guide mechanism to realize remelting. By the aluminum remelting method, the aluminum template can be remelted efficiently.
The aluminum template with the attachments is fed into the rotary kiln for the first time, and the aluminum template is driven to turn and beat through the rotation of the rotary kiln. Meanwhile, high-temperature flue gas is added from the kiln tail and/or the temperature is controlled through a combustion spray gun, the temperature of the aluminum template is raised to 350-400 ℃, the aluminum template gradually expands in the temperature raising process, the thermal expansion coefficients of the aluminum template and the attachment are different, the attachment containing cement gradually pulverizes in the temperature raising process, and the removal of the attachment is realized by the synergistic cooperation of mechanical overturning, beating, the thermal expansion coefficient difference and the pulverization of the attachment. And the cement covered on the surface layer of the aluminum template falls off along with the rolling and beating of the aluminum template. The fallen cement falls into the space between the rotary cylinder and the inner cylinder and is collected at the tail of the kiln. After the cement-removed high-temperature aluminum plate is discharged out of the rotary kiln, the high-temperature aluminum plate can be conveyed into an aluminum melting furnace with a top feeding hole through a guide mechanism for remelting and casting; or can be processed and used again after cooling. The invention changes manual cleaning into full-automatic machine cleaning, can greatly improve the cleaning efficiency of the aluminum template and obtain good cleaning effect.
The method has the advantages of high automation degree, high treatment efficiency, better cleaning effect on attachments such as cement and the like and lower cost compared with manual cleaning, and can utilize high-temperature flue gas of a factory as a heat source, thereby being beneficial to cyclic utilization of waste heat.
Drawings
FIG. 1 is a schematic view of a rotary kiln used in the present invention.
Fig. 2 is an external view of the aluminum mold plate before cleaning.
Fig. 3 is an external view of the cleaned aluminum mold plate.
1-rotating cylinder, 2-inner cylinder, 3-through hole, 4-kiln tail cover, 5-heat source inlet, 6-slag discharge port, 7-guiding mechanism, 8-slag storage box, 9-aluminum melting furnace, 10-kiln head fixing mechanism and 11-kiln tail fixing mechanism.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. For convenience of description, the words "upper", "lower", "left" and "right" in the following description are used only to indicate the correspondence between the upper, lower, left and right directions of the drawings themselves, and do not limit the structure.
A method for removing an adherent on an aluminum form, the adherent comprising cement; the method comprises the following steps:
s1, providing a rotary kiln;
the rotary kiln comprises a rotary cylinder body and an inner cylinder body arranged in the rotary cylinder body, wherein the outer wall of the inner cylinder body is fixedly connected with the inner wall of the rotary cylinder body through a plurality of supporting rods, a gap is reserved between the inner cylinder body and the rotary cylinder body, and a plurality of through holes penetrating through the inner wall and the outer wall of the inner cylinder body are formed in the inner cylinder body; the kiln head to the kiln tail of the rotary kiln gradually inclines downwards, the kiln tail of the rotary kiln is provided with a kiln tail cover communicated with the rotary kiln, the top of the kiln tail cover is provided with a heat source inlet, high-temperature flue gas is used as a heat source, and the bottom of the kiln tail cover is provided with a slag discharge port;
and S2, feeding the aluminum template to be processed into the inner cylinder body of the rotary kiln from the kiln head of the rotary kiln, heating, raising the temperature of the aluminum template in the rotary kiln to 380 ℃, simultaneously controlling the rotating speed of the rotary kiln to be 5r/min to separate the attachments from the aluminum template, discharging the finally processed aluminum template from the tail end of the kiln, and enabling the separated attachments to fall into a slag storage box through a slag discharge port.
The length of the rotary cylinder is 10 m. The rotary cylinder is arranged on the kiln head fixing mechanism and the kiln tail fixing mechanism and is movably connected with the kiln head fixing mechanism and the kiln tail fixing mechanism. The width of the gap between the inner cylinder and the rotary cylinder is 15 cm. The rotating cylinder and the inner cylinder share a central axis. The through holes are distributed in sequence along the length direction of the inner cylinder. The through hole is a round hole with the diameter of 50 mm.
Fig. 2 and 3 are external views of the aluminum mold before and after the treatment, which are intuitive to show that the attachments on the surface of the aluminum mold are effectively removed after the treatment by the method of the present invention.
The remelting method of the aluminum template comprises the steps of feeding the aluminum template treated by the method into an aluminum melting furnace through a guide mechanism, and melting. The inlet end of the guide mechanism is arranged in the kiln tail cover, receives the aluminum template output from the rotary kiln and sends the aluminum template into the aluminum melting furnace. Comparative example 1
Example 1 was repeated with the only difference that: in S2, the temperature of the aluminum mould plate in the rotary kiln is raised to 300 ℃. The results show that after cleaning, a part of cement-like substances remained attached to the aluminum form.
Comparative example 2
Example 1 was repeated with the only difference that: in S2, the rotation speed of the rotary kiln is controlled to be 2 r/min. The results show that after cleaning, there were still deposits on the aluminum forms.
The foregoing examples are set forth to illustrate the present invention more clearly and are not to be construed as limiting the scope of the invention, which is defined in the appended claims to which the invention pertains, as modified in all equivalent forms, by those skilled in the art after reading the present invention.
Claims (5)
1. A method for removing an adherent on an aluminum form, the adherent comprising cement; the method is characterized by comprising the following steps:
s1, providing a rotary kiln;
the rotary kiln comprises a rotary cylinder body and an inner cylinder body arranged in the rotary cylinder body, wherein the inner cylinder body is fixedly connected with the rotary cylinder body, a gap is reserved between the inner cylinder body and the rotary cylinder body, and a plurality of through holes penetrating through the inner wall and the outer wall of the inner cylinder body are formed in the inner cylinder body; the kiln head to the kiln tail of the rotary kiln gradually inclines downwards, the kiln tail of the rotary kiln is provided with a kiln tail cover communicated with the rotary kiln, the kiln tail cover is provided with a heat source inlet, and the bottom of the kiln tail cover is provided with a slag discharge port; the length of the rotary cylinder body is 8-14 m; the width of a gap between the inner cylinder and the rotary cylinder is 10-20 cm; the through holes are distributed in sequence along the length direction of the inner cylinder body;
s2, conveying the aluminum template to be processed into the inner cylinder of the rotary kiln from the kiln head of the rotary kiln, heating, raising the temperature of the aluminum template in the rotary kiln to 350-400 ℃, and simultaneously controlling the rotating speed of the rotary kiln to be 3-8r/min so as to separate the attachment from the aluminum template;
wherein the attachment is concrete or cement concretion.
2. The method of claim 1, wherein the rotating cylinder and inner cylinder are concentric.
3. The method of claim 1, wherein the through-holes are round holes having a diameter of 45-60 mm.
4. The method of claim 1, wherein in S2, the rotary kiln rotates at a speed of 4-6 r/min.
5. The method as claimed in claim 1, wherein the temperature of the aluminum mold plate in the rotary kiln is raised to 380 ℃ at S2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010761416.0A CN111910078B (en) | 2020-07-31 | 2020-07-31 | Method for removing attachments on aluminum template and remelting method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010761416.0A CN111910078B (en) | 2020-07-31 | 2020-07-31 | Method for removing attachments on aluminum template and remelting method |
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| Publication Number | Publication Date |
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| CN111910078A CN111910078A (en) | 2020-11-10 |
| CN111910078B true CN111910078B (en) | 2022-04-19 |
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| CN114482543A (en) * | 2022-02-18 | 2022-05-13 | 魏锁民 | Special equipment and method for attaching impurities to heat treatment surface of building template |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009046852A (en) * | 2007-08-17 | 2009-03-05 | Taiyu Kk | Drum type scraping device |
| CN208918297U (en) * | 2018-09-25 | 2019-05-31 | 湖北志特新材料科技有限公司 | A kind of aluminum alloy pattern plate deslagging device |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19631540C2 (en) * | 1996-05-26 | 1999-08-12 | Wolfgang Klaus | Method and device for cleaning small formwork parts soiled with caked concrete residues |
| JP4391798B2 (en) * | 2003-10-20 | 2009-12-24 | 大裕株式会社 | Keren equipment |
| CN101623611A (en) * | 2009-08-03 | 2010-01-13 | 大连强润丰机械配套设备有限公司 | Energy-saving double-module double-roll pelletizer |
| CN103966468A (en) * | 2013-01-24 | 2014-08-06 | 秦皇岛开发区美铝合金有限公司 | Aluminium alloy chip re-melting reutilization technology |
| CN109707162B (en) * | 2017-10-26 | 2021-03-23 | 晟通科技集团有限公司 | Old template bulk cement cleaning equipment |
| CN108843019B (en) * | 2018-07-06 | 2020-11-03 | 滁州市嘉冠建设工程有限公司 | A cleaning device for building templates recycle |
| CN209443783U (en) * | 2018-11-29 | 2019-09-27 | 佛山市博赞焊接材料有限公司 | A kind of template cleaning plant |
| CN110670878A (en) * | 2019-10-10 | 2020-01-10 | 广东博智林机器人有限公司 | Aluminium mould scarfing cinder cylinder |
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2020
- 2020-07-31 CN CN202010761416.0A patent/CN111910078B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009046852A (en) * | 2007-08-17 | 2009-03-05 | Taiyu Kk | Drum type scraping device |
| CN208918297U (en) * | 2018-09-25 | 2019-05-31 | 湖北志特新材料科技有限公司 | A kind of aluminum alloy pattern plate deslagging device |
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