CN103964718A - Method for treating construction waste - Google Patents

Method for treating construction waste Download PDF

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Publication number
CN103964718A
CN103964718A CN201410171333.0A CN201410171333A CN103964718A CN 103964718 A CN103964718 A CN 103964718A CN 201410171333 A CN201410171333 A CN 201410171333A CN 103964718 A CN103964718 A CN 103964718A
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CN
China
Prior art keywords
building
building castoff
aggregate
castoff
screen overflow
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Pending
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CN201410171333.0A
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Chinese (zh)
Inventor
布宁中
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Sound Environmental Resources Co Ltd
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Sound Environmental Resources Co Ltd
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Application filed by Sound Environmental Resources Co Ltd filed Critical Sound Environmental Resources Co Ltd
Priority to CN201410171333.0A priority Critical patent/CN103964718A/en
Publication of CN103964718A publication Critical patent/CN103964718A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/50Reuse, recycling or recovery technologies
    • Y02W30/91Use of waste materials as fillers for mortars or concrete

Abstract

The invention discloses a method for treating construction waste, and belongs to the field of resource utilization of the construction waste. The method comprises a separation step, a coarse crushing step, a magnetic separation step, a middle crushing step and a three layer screening step, as well as a baking-free brick preparing step and a material separating step which are carried out respectively, a building material aggregate I preparing step and a building material aggregate II preparing step which are carried out respectively after the material separating step, and a reprocessing step carried out in the building material aggregate I preparing step and the building material aggregate II preparing step. The condition that the production of the building material aggregate products and baking-free brick products is carried out controllably by utilization of the construction waste is realized, and through the adoption of the method, according to market demand of the product, a construction waste resourceful treatment enterprise can adjust the variety and the quantity of product, produce readily marketable products, reduce investment, save used land, and promote the development of the construction waste resourceful treatment industry.

Description

The treatment process of building castoff
Technical field
The present invention relates to disposition of solid waste and utilize field, particularly relate to a kind of building castoff that utilizes and produce building aggregate product and non-burning brick method.
Background technology
At present, China's building castoff recycling treatment is in the starting stage, building castoff recycling treatment process technology is relatively backward, building castoff treatment scale is little, production line processing power is not strong, restricted the development of building castoff recycling treatment, analyze technically and exist the reason of this problem to be: the range of product that existing building treatment method changing rejected material to useful resource is produced is comparatively single, be difficult to adapt to the needs of market to variant production kind, building castoff is processed enterprise in fund, in the equipressure situation of place, for avoiding causing product overloading, tend to the limit production of taking measures, caused thus building castoff treatment scale little, the present situation that production line processing power is not strong.
Building castoff recycling treatment is mainly to utilize building castoff to produce various New Building Materials, comprise building aggregate, non-burning brick etc., existing building changing rejected material to useful resource treatment process method can be divided into: building castoff produces non-burning brick technique and building castoff is produced two kinds of methods of building aggregate technique, and the problem and shortage that these two kinds of methods exist as previously mentioned.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind for the treatment of process of building castoff, can realize efficient processing building waste, thereby solve the problem that the existing processing mode of existing processing building waste is single and processing power is not enough.
For solving the problems of the technologies described above, the invention provides a kind for the treatment of process of building castoff, comprising:
Sorting step: sort out as the heavy foreign material in the building castoff of raw material;
Coarse breaking step: the described building castoff that lumpiness after described sorting is less than to 500mm carries out fragmentation, broken rear raw meal particle size is not more than 100mm.
Magnetic separation step: remove the irony thing in the described building castoff after described coarse breaking;
Middle broken step: the described building castoff after described magnetic separation is carried out to fragmentation, and broken rear raw meal particle size is not more than 60mm, carries out selection by winnowing in shattering process, removes the light weight sundries in described building castoff;
Three layers of screening step: adopt the three-deck vibrating screen subset that is provided with the different screen clothes in upper, middle and lower-ranking aperture, building castoff after described middle fragmentation is carried out to three layers of screening, after screening, separate four kinds of building castoffs that particle diameter is different, wherein, the particle diameter of upper strata screen overflow building castoff is greater than the particle diameter of middle level screen overflow building castoff, the particle diameter of middle level screen overflow building castoff is greater than the particle diameter of lower floor's screen overflow building castoff, and the particle diameter of lower floor's screen overflow building castoff is greater than the particle diameter of lower floor's screen underflow building castoff;
Three layers of screening step are prepared respectively non-burning brick step and sub-material step:
Prepare non-burning brick step: lower floor's screen underflow building castoff that the described three layers of screening step of take separate is raw material, prepares non-burning brick;
Sub-material step: the middle level screen overflow building castoff obtaining after described three layers of screening is exported to and prepares aggregate one step; The lower floor's screen overflow building castoff obtaining after described three layers of screening is exported to and prepares aggregate two steps;
After sub-material step, be prepared respectively aggregate one step and prepare aggregate two steps:
Prepare building aggregate one step: judge whether that the middle level screen overflow building castoff that described sub-material step is carried all prepares building aggregate one, whole middle level screen overflow building castoff of if so, take is prepared building aggregate one as raw material;
If not, by setting consumption, take part middle level screen overflow building castoff and prepare building aggregate one as raw material, export back remaining middle level screen overflow building castoff to treatment step;
Prepare building aggregate two steps: judge whether that lower floor's screen overflow building castoff that described sub-material step is carried all prepares building aggregate two, whole lower floor's screen overflow building castoff of if so, take is prepared building aggregate two as raw material;
If not, by setting consumption, take part lower floor screen overflow building castoff and prepare building aggregate two as raw material, export back remaining lower floor screen overflow building castoff to treatment step;
Return treatment step: the remaining middle level screen overflow building castoff of preparing building aggregate one step output is carried out to fine crushing with the remaining lower floor screen overflow building castoff of preparing building aggregate two steps outputs, be recycled to described three layers of screening step and again sieve to carry out subsequent disposal.
Beneficial effect of the present invention is: by the cooperation of each step; can be on the fragmentation of same building castoff, screening production line; range of product as required and product amount; produce the building aggregate product and the non-burning brick product that meet user's needs, for mass-producing, process building castoff, reduce investment, the great promoter action of having saved the area.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The building castoff process flow figure that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Below the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on embodiments of the invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to protection scope of the present invention.
The embodiment of the present invention provides a kind for the treatment of process of building castoff, and referring to Fig. 1, the method comprises the following steps:
Sorting step: sort out as the heavy foreign material in the building castoff of raw material;
Coarse breaking step: the described building castoff that lumpiness after described sorting is less than to 500mm carries out fragmentation, broken rear raw meal particle size is not more than 100mm.
Magnetic separation step: remove the irony thing in the described building castoff after described coarse breaking;
Middle broken step: the described building castoff after described magnetic separation is carried out to fragmentation, and broken rear raw meal particle size is not more than 60mm, carries out selection by winnowing in shattering process, removes the light weight sundries in described building castoff;
Three layers of screening step: adopt the three-deck vibrating screen subset that is provided with the different screen clothes in upper, middle and lower-ranking aperture, building castoff after described middle fragmentation is carried out to three layers of screening, after screening, separate four kinds of building castoffs that particle diameter is different, wherein, the particle diameter of upper strata screen overflow building castoff is greater than the particle diameter of middle level screen overflow building castoff, the particle diameter of middle level screen overflow building castoff is greater than the particle diameter of lower floor's screen overflow building castoff, and the particle diameter of lower floor's screen overflow building castoff is greater than the particle diameter of lower floor's screen underflow building castoff;
Three layers of screening step are prepared respectively non-burning brick step and sub-material step:
Prepare non-burning brick step: lower floor's screen underflow building castoff that the described three layers of screening step of take separate is raw material, prepares non-burning brick;
Sub-material step: the middle level screen overflow building castoff obtaining after described three layers of screening is exported to and prepares aggregate one step; The lower floor's screen overflow building castoff obtaining after described three layers of screening is exported to and prepares aggregate two steps;
After sub-material step, be prepared respectively aggregate one step and prepare aggregate two steps:
Prepare building aggregate one step: judge whether that the middle level screen overflow building castoff that described sub-material step is carried all prepares building aggregate one, whole middle level screen overflow building castoff of if so, take is prepared building aggregate one as raw material;
If not, by setting consumption, take part middle level screen overflow building castoff and prepare building aggregate one as raw material, export back remaining middle level screen overflow building castoff to treatment step;
Prepare building aggregate two steps: judge whether that lower floor's screen overflow building castoff that described sub-material step is carried all prepares building aggregate two, whole lower floor's screen overflow building castoff of if so, take is prepared building aggregate two as raw material;
If not, by setting consumption, take part lower floor screen overflow building castoff and prepare building aggregate two as raw material, export back remaining lower floor screen overflow building castoff to treatment step;
Return treatment step: the remaining middle level screen overflow building castoff of preparing building aggregate one step output is carried out to fine crushing with the remaining lower floor screen overflow building castoff of preparing building aggregate two steps outputs, be recycled to described three layers of screening step and again sieve to carry out subsequent disposal.
In aforesaid method, in described three layers of screening step, the upper, middle and lower-ranking mesh size of described three-deck vibrating screen subset is respectively 40mm, 20mm, 8mm;
The particle diameter of the upper strata screen overflow building castoff after described three layers of screening is greater than 40mm, and the particle diameter of middle level screen overflow is 20~40mm, and the particle diameter of lower floor's screen overflow building castoff is 8~20mm, and the particle diameter of lower floor's screen underflow building castoff is less than 8mm.
In aforesaid method, the non-burning brick step of described preparation is:
Adopt full automatic brick making machine suite of equipment to prepare non-burning brick.Specifically can adopt existing full automatic brick making machine suite of equipment to prepare non-burning brick
In aforesaid method, in described coarse breaking step, employing be jaw crusher equipment.
In aforesaid method, described time treatment step, the remaining lower floor screen overflow building castoff of preparing the remaining middle level screen overflow building castoff of building aggregate one step output and preparing building aggregate two steps outputs is carried out in fine crushing, employing be that the transfer roller that gathers materials is exported.
Below in conjunction with the drawings and specific embodiments, treatment process of the present invention is described further.
The treatment process of the building castoff of the embodiment of the present invention as shown in Figure 1, can utilize building castoff to produce building aggregate and non-burning brick technique, and concrete steps are as follows:
1) building castoff crushing and screening (specifically can realize by building castoff crushing and screening machining production line):
Building castoff crushing and screening comprises: artificial separation, coarse breaking, magnetic separation, middle fragmentation, three layers of screening treating processes, wherein
(1) artificial separation: be first the foreign material such as non-ferrous metal wherein, timber, waste or used plastics to be sorted out before building castoff fragmentation, guarantee the smooth of the course of processing, construction waste amount is improved.
(2) coarse breaking: adopt jaw crusher equipment, the building castoff that lumpiness is less than to 500mm carries out fragmentation, takes dust suppression in shattering process, prevents that airborne dust from producing.
(3) magnetic separation: select self-unloading type deferrization device, remove the irony thing in building castoff.
(4) broken in: adopt impact breaker equipment, further broken to the building castoff after coarse breaking, in shattering process, carry out selection by winnowing, remove the lightweight thing impurity being mixed with in building castoff.
(5) three layers of screening: adopt three-deck vibrating screen extension facility, the different screen cloth in the total upper, middle and lower-ranking aperture of three-deck vibrating screen extension set, each layer of mesh size can be adjusted by changing screen cloth as required, and upper, middle and lower-ranking mesh size of the present invention is respectively 40mm, 20mm, 8mm, after three layers of sieve apparatus screening, sieve out altogether four kinds of building castoffs that particle diameter is different, wherein, the superiors' screen overflow is the building castoff of particle diameter >40mm, backflow and be delivered into further broken processing of impact breaker, undermost screen underflow is the building castoff of particle diameter <8mm, suitablely as brickmaking, gather materials, all for the production of non-burning brick, middle level is the building castoff of particle diameter 20~40mm, lower floor is the building castoff of 8~20mm, in, two kinds of building castoffs of lower two layers of different-grain diameter, both can be used as building aggregate product, for different gratings, carry out market sale, also can be processed into brickmaking according to the further fragmentation of the needs in market gathers materials, production for non-burning brick product.
2) building aggregate is produced:
As previously mentioned, building aggregate products production mainly in after the screening of three layers of sieve apparatus, two kinds of materials of lower floor, its particle diameter is respectively 20~40mm, 8~20mm.
(21) tripper: through screening after in, two kinds of materials of lower floor, enter respectively tripper separately, the effect of tripper is according to produced product needed, the throughput direction of material is carried out to assigned unit, difference by tripper is distributed, in after sieve apparatus screening, lower floor's material, both can be partly or entirely for building aggregate products production, also can be partly or entirely for non-burning brick products production.
(22) aggregate transfer roller: be generally belt conveyor apparatus, when needs are produced building aggregate product, tripper is assigned to two kinds of different materials of particle diameter on aggregate transfer roller separately, to be transported to specified location and to store classifiedly, and has completed the production process of building aggregate product.
3) non-burning brick production
The building castoff particle diameter of suitable non-burning brick products production is generally the material of <8mm, and the material of particle diameter >8mm needs further fragmentation to be worked into below the particle diameter of regulation.
(31) after three layers of screening, when screen overflow (particle diameter is respectively 20~40mm, 8~20mm material) central, lower screen needs full scale production to become building aggregate product, for the production of non-burning brick material, it is all the screen underflow of lower screen---the building castoff of particle diameter <8mm, screen underflow, through gathering materials transfer roller two outputs, gathers materials and enters the non-burning brick technological process of production as brickmaking.
(32) when screen overflow (particle diameter is respectively 20~40mm, 8~20mm material) central, lower screen partly or entirely does not need to be produced into building aggregate product, these materials are assigned to through tripper separately transfer roller one output of gathering materials, after the fragmentation of type fine disintegrating machine equipment, enter after three layers of sieve apparatus screening, as brickmaking, gather materials and enter non-burning brick Production Flow Chart, so repeatedly, until all building castoff recycling treatment complete.
(33) transfer roller one that gathers materials: be generally rotary conveyor, its effect is in accepting and carrying, the screen overflow of lower screen enters the conveyor apparatus of producing non-burning brick flow process.
(34) fine crushing: adopt trimmer equipment in small, broken bits, this equipment has fragmentation and shaping feature concurrently.
(35) transfer roller two that gathers materials: with gathering materials transfer roller one, its effect is accept and carry the screen underflow of lower screen to enter the conveyor apparatus of the non-burning brick flow process of production.
(36) brickmaking production line: adopt full automatic brick making machine suite of equipment, production line possesses batching, stirring, extrusion molding, vapor cure function, brickmaking is gathered materials and is prepared burden by batching requirement with the brick-making raw material such as auxiliary material, cement, add after water stirring, through processes such as extrusion molding, vapor cures, finally make qualified non-burning brick product.
In treatment process of the present invention,
1) building castoff is required: require building castoff mainly to refer to the building castoff that applicable production building aggregate product and non-burning brick product are used, comprise waste concrete (piece), brick, watt, rubble etc., do not comprise spoir that the concrete, Decoration wastes, the soil excavation that contain pitch produces etc.
2) coarse breaking: the lumpiness of coarse breaking building castoff is not limited to the material below 500mm, can require to adjust according to the feed size of concrete crusher.
3) three layers of screening: wherein the mesh size of three layers of screening is respectively upper strata 40mm, middle level 20mm, the 8mm of lower floor, in specific implementation process, the pore size of each layer of screen cloth, the requirement that can gather materials according to building aggregate and brickmaking is adjusted by changing the screen cloth of different pore size.
4) sub-material step: sub-material step wherein can realize with tripper, tripper is to carry out different transportation flows to assigned unit to material, can be manual controlling, and can be also automatic red-tape operati.
In sum, by the treatment process of the embodiment of the present invention, utilize the fragmentation of same building castoff, screening production line, both can produce building aggregate product, also can produce non-burning brick product, to above-mentioned two kinds of variant productions, can also carry out the regulating and controlling of turnout, the method can make building castoff recycling treatment enterprise according to the market demand of product, carry out the adjusting of range of product, quantity, produce readily marketable products, reduce investment, save the area, promote the development of building castoff recycling treatment industry.
The above; be only the present invention's embodiment preferably, but protection scope of the present invention is not limited to this, is anyly familiar with in technical scope that those skilled in the art disclose in the present invention; the variation that can expect easily or replacement, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.

Claims (5)

1. a treatment process for building castoff, is characterized in that, comprising:
Sorting step: sort out as the heavy foreign material in the building castoff of raw material;
Coarse breaking step: the described building castoff that lumpiness after described sorting is less than to 500mm carries out fragmentation, broken rear raw meal particle size is not more than 100mm.
Magnetic separation step: remove the irony thing in the described building castoff after described coarse breaking;
Middle broken step: the described building castoff after described magnetic separation is carried out to fragmentation, and broken rear raw meal particle size is not more than 60mm, carries out selection by winnowing in shattering process, removes the light weight sundries in described building castoff;
Three layers of screening step: adopt the three-deck vibrating screen subset that is provided with the different screen clothes in upper, middle and lower-ranking aperture, building castoff after described middle fragmentation is carried out to three layers of screening, after screening, separate four kinds of building castoffs that particle diameter is different, wherein, the particle diameter of upper strata screen overflow building castoff is greater than the particle diameter of middle level screen overflow building castoff, the particle diameter of middle level screen overflow building castoff is greater than the particle diameter of lower floor's screen overflow building castoff, and the particle diameter of lower floor's screen overflow building castoff is greater than the particle diameter of lower floor's screen underflow building castoff;
Three layers of screening step are prepared respectively non-burning brick step and sub-material step:
Prepare non-burning brick step: lower floor's screen underflow building castoff that the described three layers of screening step of take separate is raw material, prepares non-burning brick;
Sub-material step: the middle level screen overflow building castoff obtaining after described three layers of screening is exported to and prepares aggregate one step; The lower floor's screen overflow building castoff obtaining after described three layers of screening is exported to and prepares aggregate two steps;
After sub-material step, be prepared respectively aggregate one step and prepare aggregate two steps:
Prepare building aggregate one step: judge whether that the middle level screen overflow building castoff that described sub-material step is carried all prepares building aggregate one, whole middle level screen overflow building castoff of if so, take is prepared building aggregate one as raw material;
If not, by setting consumption, take part middle level screen overflow building castoff and prepare building aggregate one as raw material, export back remaining middle level screen overflow building castoff to treatment step;
Prepare building aggregate two steps: judge whether that lower floor's screen overflow building castoff that described sub-material step is carried all prepares building aggregate two, whole lower floor's screen overflow building castoff of if so, take is prepared building aggregate two as raw material;
If not, by setting consumption, take part lower floor screen overflow building castoff and prepare building aggregate two as raw material, export back remaining lower floor screen overflow building castoff to treatment step;
Return treatment step: the remaining middle level screen overflow building castoff of preparing building aggregate one step output is carried out to fine crushing with the remaining lower floor screen overflow building castoff of preparing building aggregate two steps outputs, be recycled to described three layers of screening step and again sieve to carry out subsequent disposal.
2. method according to claim 1, is characterized in that, in described three layers of screening step, the upper, middle and lower-ranking mesh size of described three-deck vibrating screen subset is respectively 40mm, 20mm, 8mm;
The particle diameter of the upper strata screen overflow building castoff after described three layers of screening is greater than 40mm, and the particle diameter of middle level screen overflow is 20~40mm, and the particle diameter of lower floor's screen overflow building castoff is 8~20mm, and the particle diameter of lower floor's screen underflow building castoff is less than 8mm.
3. method according to claim 1 and 2, is characterized in that, the non-burning brick step of described preparation is:
Adopt full automatic brick making machine suite of equipment to prepare non-burning brick.
4. method according to claim 1 and 2, is characterized in that, in described coarse breaking step, employing be jaw crusher equipment.
5. method according to claim 1 and 2, it is characterized in that, described time treatment step, the remaining lower floor screen overflow building castoff of preparing the remaining middle level screen overflow building castoff of building aggregate one step output and preparing building aggregate two steps outputs is carried out in fine crushing, employing be that the transfer roller that gathers materials is exported.
CN201410171333.0A 2014-04-25 2014-04-25 Method for treating construction waste Pending CN103964718A (en)

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
CN105903745A (en) * 2016-04-25 2016-08-31 深圳市环鹏环保科技有限公司 Construction waste on-site processing method
CN106045424A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using construction waste
CN106269149A (en) * 2016-08-04 2017-01-04 攀钢集团攀枝花钢铁研究院有限公司 A kind of titanium sponge processing crushing system and method
CN108176699A (en) * 2017-12-27 2018-06-19 新昌县隆豪轴承有限公司 A kind of construction refuse regenerated production technology
CN109127658A (en) * 2018-08-03 2019-01-04 庐江荣睿建设工程有限公司 A kind of building castoff recycling technique
CN110639675A (en) * 2019-08-16 2020-01-03 中国电建集团华东勘测设计研究院有限公司 Fine concrete aggregate processing system and fine concrete aggregate system processing method
CN110976078A (en) * 2019-12-03 2020-04-10 深圳市为海建材有限公司 Resourceful treatment process for decoration waste
CN110976478A (en) * 2019-12-03 2020-04-10 深圳市为海建材有限公司 Recycling treatment process for demolition and decoration wastes
CN111825384A (en) * 2020-07-29 2020-10-27 襄阳市政建设集团有限公司 Method for reprocessing building blocks from building block waste
CN113231173A (en) * 2021-04-22 2021-08-10 中国电建集团华东勘测设计研究院有限公司 Compact artificial aggregate processing system

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105903745A (en) * 2016-04-25 2016-08-31 深圳市环鹏环保科技有限公司 Construction waste on-site processing method
CN106045424A (en) * 2016-05-25 2016-10-26 象州县科学技术局 Method for producing prefabricated member of concrete ditch by using construction waste
CN106269149A (en) * 2016-08-04 2017-01-04 攀钢集团攀枝花钢铁研究院有限公司 A kind of titanium sponge processing crushing system and method
CN106269149B (en) * 2016-08-04 2018-03-20 攀钢集团攀枝花钢铁研究院有限公司 A kind of titanium sponge processing crushing system and method
CN108176699A (en) * 2017-12-27 2018-06-19 新昌县隆豪轴承有限公司 A kind of construction refuse regenerated production technology
CN109127658A (en) * 2018-08-03 2019-01-04 庐江荣睿建设工程有限公司 A kind of building castoff recycling technique
CN110639675A (en) * 2019-08-16 2020-01-03 中国电建集团华东勘测设计研究院有限公司 Fine concrete aggregate processing system and fine concrete aggregate system processing method
CN110639675B (en) * 2019-08-16 2022-06-10 中国电建集团华东勘测设计研究院有限公司 Fine concrete aggregate processing system and fine concrete aggregate system processing method
CN110976078A (en) * 2019-12-03 2020-04-10 深圳市为海建材有限公司 Resourceful treatment process for decoration waste
CN110976478A (en) * 2019-12-03 2020-04-10 深圳市为海建材有限公司 Recycling treatment process for demolition and decoration wastes
CN110976478B (en) * 2019-12-03 2021-11-02 深圳市为海建材有限公司 Recycling treatment process for demolition and decoration wastes
CN111825384A (en) * 2020-07-29 2020-10-27 襄阳市政建设集团有限公司 Method for reprocessing building blocks from building block waste
CN113231173A (en) * 2021-04-22 2021-08-10 中国电建集团华东勘测设计研究院有限公司 Compact artificial aggregate processing system

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