CN110064482A - A kind of method of microwave-assisted broken varying strength discarded concrete - Google Patents
A kind of method of microwave-assisted broken varying strength discarded concrete Download PDFInfo
- Publication number
- CN110064482A CN110064482A CN201910434579.5A CN201910434579A CN110064482A CN 110064482 A CN110064482 A CN 110064482A CN 201910434579 A CN201910434579 A CN 201910434579A CN 110064482 A CN110064482 A CN 110064482A
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- microwave
- discarded concrete
- broken
- discarded
- concrete
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C19/186—Use of cold or heat for disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Processing Of Solid Wastes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a kind of methods of microwave-assisted broken varying strength discarded concrete, it is related to.It is the following steps are included: receive pressure signal when concrete disintegrating device is crushed by monitoring device to judge C20, C30, the strength grade of tri- kinds of discarded concretes of C40, the signal received is passed into conveying device and microwave heating equipment by controller, the conveyer belt of control conveying device switches over the conveying speed of discarded concrete fragment between 0.42m/s and 0.56m/s, the power for controlling microwave heating equipment transmitting microwave and time are in 3kw&4min, 4kw&4min, it is switched between 5kw&3min, it is constant to emit microwave frequency, it is 2.45MHz, discarded concrete fragment is handled, finally the broken concrete crossed by microwave treatment is carried out again broken apart.The present invention has the advantages that energy consumption when it can not only save broken by microwave heating technique, but also the quality and crushing efficiency of recycled aggregate can be improved.
Description
Technical field
The present invention relates to environmental protection and energy saving building materials fields, and in particular to discarded concrete regenerative use technology field especially relates to
A kind of and method of microwave-assisted broken varying strength discarded concrete.
Background technique
Tradition machinery smashing waste concrete practices are simple and low in cost, but exist it is broken be not thorough, energy consumption is high, gained
The inferior disadvantage of recycled aggregate, directly affects the recycling of discarded concrete.The regeneration obtained using conventional crumbling method
Aggregate causes the interfaces transition region quality of regeneration concrete loose because more cement mortar is adhered on its surface, mixed to regeneration
Coagulating native intensity, there are larger impacts.Therefore it needs to study the technology for handling aggregate surface attachment mortar in shattering process, subtract
The adhesion amount of few aggregate surface cement mortar, to improve the quality and crushing efficiency of recycled aggregate.
Application No. is 201610344935.0 disclose it is a kind of it is microwave-assisted pick the method for selecting recycled concrete coarse aggregate, lead to
Cross microwave irradiation, cooling, broken, screening mode carry out picking choosing, this mode is to carry out all discarded concretes together
Processing, is crushed and is sieved again after processing, select recycled aggregate with this to pick, but this mode step is more and discards coagulation
Soil increases additional energy consumption when broken.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of microwave-assisted broken varying strength discarded concrete,
Energy consumption when can not only save broken by microwave heating technique, but also the quality and broken effect of recycled aggregate can be improved
Rate.
In order to solve the above technical problems, the technical solution of the present invention is as follows: it by monitoring device the following steps are included: received
Pressure signal when concrete disintegrating device is broken judges the strength grades of tri- kinds of discarded concretes of C20, C30, C40, will connect
The signal received passes to conveying device and microwave heating equipment by controller, controls the conveyer belt of conveying device to discarded mixed
The conveying speed of solidifying soil fragment switches between 0.42m/s and 0.56m/s, the function of control microwave heating equipment transmitting microwave
Rate and time switch between 3kw&4min, 4kw&4min, 5kw&3min, and transmitting microwave frequency is constant, are
2.45MHz handles discarded concrete fragment, and the broken concrete crossed by microwave treatment is finally carried out broken point again
From.
Preferably, the conveying device carries out discarded concrete fragment to spray certain water mist in transmission process.
Preferably, the monitoring device includes pressure sensor, and pressure sensor detects needed for smashing waste concrete
Pressure, to judge the strength grade of the discarded concrete.
Preferably, the microwave heating equipment is installed above conveying device, after receiving signal, according to discarded mixed
Solidifying soil strength grade transmitting has the microwave of certain power, and it is 2.45MHz that transmitting microwave frequency is constant, uploads to conveyer belt
Defeated discarded concrete fragment carries out microwave heating treatment.
Preferably, the conveying device is run simultaneously with microwave heating equipment, and control discarded concrete fragment is added by microwave
The duration of heat.
Preferably, the microwave heating equipment is mainly made of microwave magnetron, according to processing parameter demand, magnetron row
Time arrangement between mode for cloth is 3232.
After adopting the above structure, the present invention has the advantages that when it can not only save broken by microwave heating technique
Energy consumption, but also the quality and crushing efficiency of recycled aggregate can be improved.
Detailed description of the invention
Fig. 1 is microwave-assisted broken varying strength concrete flow chart provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing and specific implementation
Mode, the present invention will be described in further detail.The following examples can make professional and technical personnel more comprehensively geographical
The solution present invention, but therefore the invention is limited to the scope of the described embodiments.
With reference to attached drawing 1, present embodiment adopts the following technical scheme that it the following steps are included: passing through monitoring device
Pressure signal when higher level's crusher (jaw crusher or impact crusher) is crushed is received to judge tri- kinds of C20, C30, C40
The signal received is passed to conveying device and microwave heating equipment by controller by the strength grade of discarded concrete, control
The conveyer belt of conveying device processed switches over the conveying speed of discarded concrete fragment between 0.42m/s and 0.56m/s, control
The power and duration of microwave heating equipment transmitting microwave processed switch between 3kw&4min, 4kw&4min, 5kw&3min, send out
It is constant to penetrate microwave frequency, is 2.45MHz, discarded concrete fragment is handled, will finally be crossed by microwave treatment useless
Abandon broken concrete be transported to next stage crusher (impact breaker or impact crusher) carry out again it is broken apart.
Preferably, the conveying device carries out discarded concrete fragment to spray certain water mist in transmission process.
Preferably, the monitoring device includes pressure sensor, and pressure sensor detects needed for smashing waste concrete
Pressure, to judge the strength grade of the discarded concrete.
Preferably, the microwave heating equipment is installed above conveying device, after receiving signal, according to discarded mixed
Solidifying soil strength grade transmitting has the microwave of certain power, and it is 2.45MHz that transmitting microwave frequency is constant, uploads to conveyer belt
Defeated discarded concrete fragment carries out microwave heating treatment, and tri- kinds of strength concretes of C20, C30, C40 are respectively corresponded using 3KW&
These three microwave processes of 4min, 4KW&4min, 5KW&3min.
Preferably, the conveying device is run simultaneously with microwave heating equipment, and control discarded concrete fragment is added by microwave
The duration of heat.
Preferably, the conveying device conveys discarded concrete fragment, passes to controller receiving monitoring device
After signal, controller controls conveying device and adjusts conveying tape running speed according to discarded concrete strength grade, with design reference
Belt conveyor for, the total 10m of delivered length, when pressure sensor transmitting signal be respectively C20, C30, C40 when, conveying
The transmission speed of machine is respectively 0.42m/s, 0.42m/s and 0.56m/s.
Preferably, the microwave heating equipment is mainly made of microwave magnetron, according to processing parameter demand, magnetron row
Time arrangement between mode for cloth is 3232.
Working principle: by the pressure sensor of monitoring device receive concrete disintegrating device it is broken when pressure signal come
The signal received is passed to conveying dress by controller by the strength grade for judging tri- kinds of discarded concretes of C20, C30, C40
Set and microwave heating equipment, control the conveyer belt of conveying device to the conveying speed of discarded concrete fragment respectively correspond for
0.42m/s, 0.42m/s and 0.56m/s in transmission process, spray certain water mist, control microwave heating equipment transmitting microwave
Corresponding power and duration switch between 3kw&4min, 4kw&4min, 5kw&3min, and transmitting microwave frequency is constant, are
2.45MHz carries out microwave heating treatment to discarded concrete fragment, finally by the broken concrete crossed by microwave treatment again into
Row is broken apart.Above-described monitoring device, pressure sensor, controller, microwave heating equipment, magnetron, water mist spray
The components such as device are universal standard part or component as known to those skilled in the art, and structure and principle are all art technology
Personnel can be learnt by technical manual or be known by routine experiment method, no longer be illustrated.
Energy consumption when present embodiment can not only save broken by microwave heating technique, but also can be improved
The quality and crushing efficiency of recycled aggregate.
Basic principles and main features and advantages of the present invention of the invention have been shown and described above.The skill of the industry
Art personnel it should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe
The principle of the present invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these
Changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and
Its equivalent thereof.
Claims (7)
1. a kind of method of microwave-assisted broken varying strength discarded concrete, it is characterised in that: the following steps are included: passing through prison
Control device receives pressure signal when higher level is crushed crusher machine to judge the intensity etc. of tri- kinds of discarded concretes of C20, C30, C40
Grade, passes to conveying device and microwave heating equipment by controller for the signal received, controls the conveyer belt of conveying device
The conveying speed of discarded concrete fragment is switched between 0.42m/s and 0.56m/s, control microwave heating equipment transmitting
The power and duration of microwave switch between 3kw&4min, 4kw&4min, 5kw&3min, and transmitting microwave frequency is constant,
For 2.45MHz, discarded concrete fragment is handled, is finally transported to the discarded concrete fragment crossed by microwave treatment
Next stage crusher carries out broken apart again.
2. the method for the microwave-assisted broken varying strength discarded concrete of one kind according to claim 1, it is characterised in that:
The conveying device carries out discarded concrete fragment to spray certain water mist in transmission process.
3. the method for the microwave-assisted broken varying strength discarded concrete of one kind according to claim 1, it is characterised in that:
The monitoring device includes pressure sensor, pressure needed for pressure sensor detects smashing waste concrete, so that judgement should
The strength grade of discarded concrete.
4. the method for the microwave-assisted broken varying strength discarded concrete of one kind according to claim 1, it is characterised in that:
The microwave heating equipment is installed above conveying device, after receiving signal, is sent out according to discarded concrete strength grade
The microwave with certain power is penetrated, it is 2.45MHz, to the discarded concrete transmitted on conveyer belt that transmitting microwave frequency is constant
Fragment carry out microwave heating treatment, tri- kinds of strength concretes of C20, C30, C40 respectively correspond using 3KW&4min, 4KW&4min,
These three microwave processes of 5KW&3min.
5. the method for the microwave-assisted broken varying strength discarded concrete of one kind according to claim 1, it is characterised in that:
The conveying device is run simultaneously with microwave heating equipment, duration of the control discarded concrete fragment by microwave heating.
6. the method for the microwave-assisted broken varying strength discarded concrete of one kind according to claim 1, it is characterised in that:
The conveying device conveys discarded concrete fragment, after receiving monitoring device and passing to the signal of controller, controller control
Conveying device processed adjusts conveying tape running speed according to discarded concrete strength grade, with the belt conveyor of design reference
Speech, the total 10m of delivered length, when the signal of pressure sensor transmitting is respectively C20, C30, C40, the transmission speed point of conveyer
It Wei not 0.42m/s, 0.42m/s and 0.56m/s.
7. the method for the microwave-assisted broken varying strength discarded concrete of one kind according to claim 1, it is characterised in that:
The microwave heating equipment is mainly made of microwave magnetron, and according to processing parameter demand, magnetron arrangement mode is 3232
Between time arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434579.5A CN110064482B (en) | 2019-05-23 | 2019-05-23 | Method for crushing waste concrete with different strengths by microwave assistance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910434579.5A CN110064482B (en) | 2019-05-23 | 2019-05-23 | Method for crushing waste concrete with different strengths by microwave assistance |
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| CN110064482A true CN110064482A (en) | 2019-07-30 |
| CN110064482B CN110064482B (en) | 2021-01-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973931A (en) * | 2019-12-18 | 2021-06-18 | 山西大地华基建材科技有限公司 | System for preparing reclaimed sand from waste concrete |
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| CN103622141A (en) * | 2013-11-14 | 2014-03-12 | 浙江大学 | Method for synchronously removing shell and peel of Chinese chestnut through microwaves |
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| CN108816360A (en) * | 2018-09-05 | 2018-11-16 | 攀枝花市九鼎智远知识产权运营有限公司 | A kind of microwave ore crushing apparatus |
| CN109187254A (en) * | 2018-07-24 | 2019-01-11 | 湖南工业大学 | Reinforced beam fire resistance detection method and fireproof coating fire prevention detection method |
| CN109439855A (en) * | 2018-11-08 | 2019-03-08 | 洪桂金 | A kind of Technique for manufacturing steel grit |
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2019
- 2019-05-23 CN CN201910434579.5A patent/CN110064482B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101544383A (en) * | 2009-05-06 | 2009-09-30 | 云南新立有色金属有限公司 | Method for microwave drying of sodium chloride |
| CN102010144A (en) * | 2010-11-01 | 2011-04-13 | 青岛理工大学 | Method for preparing high-quality recycled fine aggregate by using waste concrete |
| CN104415841A (en) * | 2013-09-11 | 2015-03-18 | 吴坚 | Microwave stone crusher |
| CN103622141A (en) * | 2013-11-14 | 2014-03-12 | 浙江大学 | Method for synchronously removing shell and peel of Chinese chestnut through microwaves |
| CN107371290A (en) * | 2017-07-12 | 2017-11-21 | 刘焕章 | A kind of microwave ore heater box |
| CN108005661A (en) * | 2017-11-30 | 2018-05-08 | 东北大学 | A kind of microwave presplitting intelligent distant control vehicle |
| CN109187254A (en) * | 2018-07-24 | 2019-01-11 | 湖南工业大学 | Reinforced beam fire resistance detection method and fireproof coating fire prevention detection method |
| CN108816360A (en) * | 2018-09-05 | 2018-11-16 | 攀枝花市九鼎智远知识产权运营有限公司 | A kind of microwave ore crushing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112973931A (en) * | 2019-12-18 | 2021-06-18 | 山西大地华基建材科技有限公司 | System for preparing reclaimed sand from waste concrete |
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| CN110064482B (en) | 2021-01-26 |
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