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Publication numberCN103921363 A
Publication typeApplication
Application numberCN 201410176832
Publication date16 Jul 2014
Filing date29 Apr 2014
Priority date29 Apr 2014
Publication number201410176832.9, CN 103921363 A, CN 103921363A, CN 201410176832, CN-A-103921363, CN103921363 A, CN103921363A, CN201410176832, CN201410176832.9
Inventors刘洋, 赵朋占
Applicant南通综艺新材料有限公司
Export CitationBiBTeX, EndNote, RefMan
External Links: SIPO, Espacenet
Method for recycling wafer cutting waste mortar
CN 103921363 A
Abstract
The invention discloses a method for recycling wafer cutting waste mortar. The method includes the following steps that the waste mortar used in wafer cutting is taken and filtered through a filter bag; the waste mortar is mixed and stirred again after adjustment, and mortar density testing is carried out through a density tester in the mixing process to achieve a mortar density capable of meeting use requirements of squaring; a stainless steel filter screen is additionally arranged on a mortar circulation port of a squarer cutting chamber, and a mortar tank double-layer filter screen is replaced by a single-layer filter screen; the groove gap of a home roll used in square forming is designed to be 157.0 mm; equipment technological parameters are adjusted, and segmented cutting is adopted; the whole machining process is monitored, and the size of produced polycrystal square ingots is controlled. According to the method, the wafer cutting waste mortar is recycled for squaring linear cutting of ingots, the defect that traditional cutting technologies relay on new sand and new liquid is overcome mainly through technology research and development and technology update, the wafer cutting waste mortar is applied to polycrystal ingot squaring, and therefore the consumption of auxiliary materials of an enterprise is reduced and enterprise benefits are improved.
Claims(4)  translated from Chinese
1.一种切片废旧砂浆二次循环利用方法,其特征在于:包括如下步骤: (1)选取硅片切割使用过的废旧砂浆,每缸砂浆使用量约为320L-330L,抽取废旧砂浆时使用过滤袋进行过滤; (2)对切片废旧砂浆进行重新配制调整,通过在砂浆搅拌缸里面添加50 Kg-60Kg(1200#)的新的砂进行调配,搅拌,调配过程中使用密度测试仪进行砂浆密度测试,达到开方使用要求的砂衆密度1.667-1.669Kg\ m2即可; (3)将开方机切割室砂浆循环口处添加不锈钢过滤网、将砂浆缸双层过滤网分别为80目和150目改为单层800目的过滤网; (4)对开方使用的主棍由原来槽距为156.8mm改为157.0mm槽距; (5)对设备工艺参数进行调整,主要技术参数将切割张力由原来75N改为80N,流量由原来的140 L\min改为145L\min,由于多晶硅锭存在杂质层,特将切割工艺采取分段式切害I],杂质层主要分布在多晶硅锭头部约为20— 25mm、尾部约为30—40 mm ; (6)对整个加工过程进行监控,生产的多晶方锭尺寸控制在156.3±0.3。 A slice of mortar secondary waste recycling method comprising: the steps of: (1) select wafer cutting waste used mortar, mortar use per cylinder about 320L-330L, used for extraction of waste mortar filter bag filter; (2) The sections used mortar reconstituted adjusted by mortar mixing tank which added 50 Kg-60Kg (1200 #) for the deployment of new sand, stirring, blending process used mortar density tester density test, to prescribe requirements of sand all the density 1.667-1.669Kg \ m2 can be; (3) the evolution of Cutting Room mortar circulation port is added at the stainless steel filter, mortar cylinders were 80 double mesh strainer 800 and 150 mesh instead single purpose filter; (4) the main stick slot for prescribing the use of the original pitch of 156.8mm 157.0mm slot pitch change; (5) to adjust the process parameters of the equipment, the main technical parameters Cutting tension changed from the original 75N 80N, traffic increased from 140 L \ min instead 145L \ min, due to the presence of an impurity layer of polysilicon ingots, especially the cutting process will take a segmented cut harm I], the impurity layer is mainly distributed in the polysilicon ingot Head of about 20- 25mm, tail is about 30-40 mm; (6) to monitor the entire process, the production of polycrystalline ingot parties control the size of 156.3 ± 0.3.
2.如权利要求1所述的切片废旧砂浆二次循环利用方法,其特征在于:所述步骤一中过滤袋为150-180目。 2. Slice the mortar used to claim 1, wherein the second recycling method, wherein: the step one in 150 to 180 mesh filter bag.
3.如权利要求1所述的切片废旧砂浆二次循环利用方法,其特征在于:所述步骤二中废旧砂浆的密度为1.625-1.63Kg\ m2。 1 slice of waste mortar according to claim secondary recycling method, wherein: said second step the density of the mortar used for 1.625-1.63Kg \ m2.
4.如权利要求1所述的切片废旧砂浆二次循环利用方法,其特征在于:所述步骤二中搅拌时间为3.5— 4小时。 The slices used mortar according to claim 1 second recycling method, wherein: said second step stirring time is 4 hours 3.5.
Description  translated from Chinese

一种切片废旧砂浆二次循环利用方法 One kind of sliced mortar secondary waste recycling method

技术领域 Technical Field

[0001] 本发明具体涉及一种切片废旧砂浆二次循环利用方法。 [0001] The present invention particularly relates to a slicing method of recycling secondary waste mortar.

背景技术 Background

[0002] 太阳能硅片需求主要来自于太阳能电池制造,目前我国太阳能电池产量位居全球各国之首,因此我国硅片企业主要为国内企业提供原料,部分产品向欧洲及北美洲地区出口。 [0002] The solar wafer demand is mainly from the solar cell manufacturers, is currently ranked first in China's solar cell production in the countries around the world, so our silicon business mainly for domestic enterprises to provide raw materials, some products export to Europe and North America. 太阳能光伏市场应用将呈现宽领域、多样化的趋势适应各种需求的光伏产品将不断问世除了大型并网光伏电站、分布式发电、与建筑相结合的光伏发电系统、小型光伏系统、离网光伏系统也将快速兴起。 Solar photovoltaic market will show a wide field of applications, a variety of trends for the demands of photovoltaic products will continue to come in addition to large-scale grid-connected PV power plants, distributed generation, combined with the construction of photovoltaic systems, small-scale PV systems, off-grid PV the system will rapidly rise.

[0003] 2013年随着国家对光伏行业政策调整和扶持,太阳能光伏装机需求量将迅猛发展,这将带动我国硅片行业需求的增长。 [0003] in 2013 with the state of the PV industry policy adjustment and support, the demand for solar PV installed capacity will be rapid development, which will drive the growth of China's silicon industry needs. 但是太阳能硅片切割依然成本较高,从而制约了企业发展和经济效益,硅片产品质量、技术水平与世界先进水平还存在一定的差距,主要体现在研发创新能力较低、制造技术水平层次不齐,降低硅片成本仍将是光伏行业的发展主题, But still high cost of solar wafer cutting, thereby constraining the development of enterprises and economic benefits, silicon product quality, technical level with the world advanced level there is still a gap, mainly reflected lower research and innovation capacity, manufacturing technology level is not Qi, reduce the cost of silicon will remain the theme of development of photovoltaic industry,

开方线切割技术是光伏硅片切割行业重要组成部分,传统开方切割目前国内外光伏行业所用的砂浆基本为新液新砂按照一定的比例配置(如国内1: 1.1),具有辅料消耗较大、效益低等缺陷,由于新材料技术的发展,对于降低辅材消耗的要求越来越高。 Prescribing wire cutting technology is an important component of PV wafering industry, the traditional cutting prescribing the photovoltaic industry at home and abroad mortar used was essentially new in accordance with a certain proportion of new sand configurations (such as domestic 1: 1.1), with a greater consumption of materials , efficiency and low defects, due to the development of new materials technology for reducing the consumption of auxiliary increasingly demanding. 同时也是光伏硅片行业不断向高效率,低成本的方向发展。 Silicon photovoltaic industry is also evolving to high-efficiency, low-cost direction. 提高核心竞争力实现从规模增长型向质量效益型的转变。 Improve the core competitiveness to achieve the quality and efficiency of the transition from growth-oriented scale.

发明内容 DISCLOSURE

[0004] 发明目的:本发明提供一种切片废旧砂浆二次循环利用方法。 [0004] The object of the invention: The present invention provides a slice of mortar secondary waste recycling methods.

[0005] 技术方案:一种切片废旧砂浆二次循环利用方法,包括如下步骤: [0005] Technical Solution: one slice mortar secondary waste recycling method, comprising the steps of:

(I)选取硅片切割使用过的废旧砂浆,每缸砂浆使用量约为320L-330L,抽取废旧砂浆时使用过滤袋进行过滤;过滤主要作用为将切片切割过程中产生的杂质进行去除,防止开方作业时断线。 (I) used to select wafer cutting waste mortar, mortar use per cylinder about 320L-330L, using a filter bag filter used when taking a mortar; filter main role is to slice cutting impurities produced during removal to prevent prescribing disconnection operations.

[0006] (2)由于切片使用过的废旧砂浆密度为1.625-1.63Kg\ Hl2不符合开方砂浆切割使用要求:开方使用砂浆密度为1.667-1.669Kg\ m%要对切片废旧砂浆进行重新配制调整,通过在砂浆搅拌缸里面添加50 Kg-60 Kg(1200#)的新的砂进行调配,搅拌,调配过程中使用密度测试仪进行砂浆密度测试,达到开方使用要求的砂浆密度1.667-1.669Kg\ in2即可; [0006] (2) The section used waste mortar density 1.625-1.63Kg \ Hl2 does not meet the requirements of cutting mortar prescribing: prescribing the use of mortar density 1.667-1.669Kg \ m% want to re-slice the waste mortar preparation of adjustment, by mortar mixing tank which added 50 Kg-60 Kg (1200 #) for the deployment of new sand, stirring, blending process used density tester mortar density test, to prescribe requirements of mortar density 1.667- 1.669Kg \ in2 can;

(3)将开方机切割室砂浆循环口处添加不锈钢过滤网、将砂浆缸双层过滤网分别为80目和150目改为单层800目的过滤网;防止因开方过程中产生杂质造成断线导致尺寸偏小。 (3) prescribing Cutting Room mortar circulation port is added at the stainless steel filter, double filter mortar cylinder was changed to 80 mesh and 150 mesh 800 single-purpose filter; to prevent the causing impurities generated in the process due to evolution disconnection lead to smaller size.

[0007] (4)对开方使用的主辊由原来槽距为156.8mm改为157.0mm槽距;加大的主要原因为防止废旧砂浆切割力不够导致晶体边宽尺寸开小。 [0007] (4) the main roll groove for prescribing the use of the original pitch of 156.8mm 157.0mm slot pitch instead; increase was mainly due to the cutting force is not enough to prevent the waste of mortar cause crystals to open a small side width dimension.

[0008] (5)对设备工艺参数进行调整,主要技术参数将切割张力由原来75N改为80N,流量由原来的140 L\min改为145L\min,由于多晶硅锭存在杂质层,特将切割工艺采取分段式切割,杂质层主要分布在多晶硅锭头部约为20— 25mm、尾部约为30—40 mm,详细切割工艺变更为: [0008] (5) of the device to adjust the process parameters, the main technical parameters will be changed to cut the tension increased from 75N 80N, traffic increased from 140 L \ min instead 145L \ min, due to the presence of an impurity layer of polysilicon ingots, especially cutting Process to take sub-cut, mainly in the impurity layer of polysilicon ingot head about 20- 25mm, tail about 30-40 mm, detailed cutting process changes as follows:

Figure CN103921363AD00041

(6)对整个加工过程进行监控,生产的多晶方锭尺寸控制在156.3±0.3。 (6) to monitor the entire process, the production of polycrystalline ingot parties control the size of 156.3 ± 0.3.

[0009] 作为优化:所述步骤一中过滤袋为150-180目。 [0009] As optimization: Step one in the 150 to 180 mesh filter bag.

[0010] 作为优化:所述步骤二中废旧砂浆的密度为1.625-1.63Kg\ m2。 [0010] as an optimization: the density of the waste mortar step two is 1.625-1.63Kg \ m2.

[0011] 作为优化:所述步骤二中搅拌时间为3.5—4小时。 [0011] as an optimization: the step two stirring time is 3.5-4 hours.

[0012] 有益效果:本发明对切片废旧砂浆二次利用于铸锭开方线切割,主要通过技术研发、工艺更新克服传统切割技术依赖新砂新液,使其切片废旧砂浆用于多晶铸锭开方,从而降低企业辅料消耗,提高企业效益。 [0012] The beneficial effects: the present invention is used for slicing the ingot mortar secondary use in prescribing line cutting, mainly through research and development, technology updates overcome the traditional cutting techniques rely on the new sand the new solution, it sliced polycrystalline ingot for scrap mortar prescribing, resulting in lower materials consumption and improve enterprise efficiency. 可以达到并超过国内外同领域同类水平,有效解决铸锭开方线切割对新砂新液的依赖,并可以向光伏行业推广。 Can achieve more than similar domestic and international level in the same field, an effective solution to the ingot prescribing line cutting dependence on new sand the new solution, and can promote the photovoltaic industry.

[0013] 本发明对切片废旧砂浆进行重新配制调整,将开方机切割室砂浆循环口处添加不锈钢过滤网、将砂浆缸双层过滤网分别为80目和150目改为单层800目的过滤网,防止因开方过程中产生杂质造成断线导致尺寸偏小。 [0013] The present invention is used to slice mortar reconstituted adjustment, prescribing cutter chamber mortar loop mouth Add stainless steel filter, double filter mortar cylinder was changed to 80 mesh and 150 mesh 800 mesh strainer single net, to prevent generation of impurities during evolution cause breakage resulting in smaller size.

[0014] 对开方使用的主辊由原来槽距为156.8mm改为157.0mm槽距;加大的主要原因为防止废旧砂浆切割力不够导致晶体边宽尺寸开小。 [0014] the main roll groove for prescribing the use of the original pitch of 156.8mm 157.0mm slot pitch instead; increase was mainly due to the cutting force is not enough to prevent the waste of mortar cause crystals to open a small side width dimension.

[0015] 对设备工艺参数进行调整,主要技术参数将切割张力由原来75N改为80N,流量由原来的140 L\min改为145L\min,由于多晶硅锭存在杂质层,特将切割工艺采取分段式切割。 [0015] Process parameters can be adjusted on the device, the main technical parameters will be changed to cut the tension increased from 75N 80N, traffic increased from 140 L \ min instead 145L \ min, due to the presence of an impurity layer of polysilicon ingots, especially the cutting process to take points Segment cutting.

具体实施方式[0016] 下面结合具体实施例对本发明进行详细阐述。 DETAILED DESCRIPTION [0016] the following with reference to specific embodiments of the present invention will be described in detail.

[0017] 具体实施例1: [0017] Specific Example 1:

一种切片废旧砂浆二次循环利用方法,包括如下步骤: Slice one kind of mortar secondary waste recycling method, comprising the steps of:

(1)选取硅片切割使用过的废旧砂浆,每缸砂浆使用量约为320L,抽取废旧砂浆时使用过滤袋进行过滤,其中过滤袋为150目; (1) Select wafer cutting waste used mortar, mortar use per cylinder about 320L, using a filter bag filter used when extracting mortar, which is 150 mesh filter bag;

(2)对切片废旧砂浆进行重新配制调整,废旧砂浆的密度为1.625Kg\m2,通过在砂浆搅拌缸里面添加50 Kg (1200#)的新的砂进行调配,搅拌,搅拌时间为3.5小时,调配过程中使用密度测试仪进行砂浆密度测试,达到开方使用要求的砂浆密度1.667Kg\ m2即可; (2) The sections used mortar reconstituted adjustment, waste mortar density 1.625Kg \ m2, add 50 Kg (1200 #) for the deployment of new sand mortar by mixing tank inside, stirring, stirring time is 3.5 hours, used during the deployment density tester mortar density test, to prescribe requirements of mortar density 1.667Kg \ m2 can be;

(3)将开方机切割室砂浆循环口处添加不锈钢过滤网、将砂浆缸双层过滤网分别为80目和150目改为单层800目的过滤网; (3) adding a stainless steel mortar cycle prescribing cutter chamber mouth filter, double filter mortar cylinder was changed to 80 mesh and 150 mesh 800 single-purpose filter;

(4)对开方使用的主棍由原来槽距为156.8mm改为157.0mm槽距; (4) The main stick slot for prescribing the use of the original pitch of 156.8mm 157.0mm slot pitch changed;

(5)对设备工艺参数进行调整,主要技术参数将切割张力由原来75N改为80N,流量由原来的140 L\min改为145L\min,由于多晶硅锭存在杂质层,特将切割工艺采取分段式切害1J,杂质层主要分布在多晶娃锭头部约为20mm、尾部约为30mm ; (5) Equipment Process parameters can be adjusted, the main technical parameters will be changed to cut the tension increased from 75N 80N, traffic increased from 140 L \ min instead 145L \ min, due to the presence of an impurity layer of polysilicon ingots, especially the cutting process to take points Segment cut harmful 1J, the impurity layer is mainly distributed in the polycrystalline ingot baby head about 20mm, the tail is about 30mm;

(6)对整个加工过程进行监控,生产的多晶方锭尺寸控制在156。 (6) to monitor the entire process, the production of polycrystalline ingots control the size of 156 square.

[0018] 具体实施例2: [0018] Specific Example 2:

一种切片废旧砂浆二次循环利用方法,包括如下步骤: Slice one kind of mortar secondary waste recycling method, comprising the steps of:

(1)选取硅片切割使用过的废旧砂浆,每缸砂浆使用量约为330L,抽取废旧砂浆时使用过滤袋进行过滤,其中过滤袋为180目; (1) Select wafer cutting waste used mortar, mortar use per cylinder about 330L, using a filter bag filter used when extracting mortar, which is 180 mesh filter bag;

(2)对切片废旧砂浆进行重新配制调整,废旧砂浆的密度为1.63Kg\m2,通过在砂浆搅拌缸里面添加60 Kg (1200#)的新的砂进行调配,搅拌,搅拌时间为4小时,调配过程中使用密度测试仪进行砂浆密度测试,达到开方使用要求的砂浆密度1.669Kg\ m2即可; (2) The sections used mortar reconstituted adjustment, waste mortar density 1.63Kg \ m2, add 60 Kg (1200 #) for the deployment of new sand mortar by mixing tank inside, stirring, stirring time of 4 hours, used during the deployment density tester mortar density test, to prescribe requirements of mortar density 1.669Kg \ m2 can be;

(3)将开方机切割室砂浆循环口处添加不锈钢过滤网、将砂浆缸双层过滤网分别为80目和150目改为单层800目的过滤网; (3) adding a stainless steel mortar cycle prescribing cutter chamber mouth filter, double filter mortar cylinder was changed to 80 mesh and 150 mesh 800 single-purpose filter;

(4)对开方使用的主棍由原来槽距为156.8mm改为157.0mm槽距; (4) The main stick slot for prescribing the use of the original pitch of 156.8mm 157.0mm slot pitch changed;

(5)对设备工艺参数进行调整,主要技术参数将切割张力由原来75N改为80N,流量由原来的140 L\min改为145L\min,由于多晶硅锭存在杂质层,特将切割工艺采取分段式切害1J,杂质层主要分布在多晶娃锭头部约为25mm、尾部约为40 mm ; (5) Equipment Process parameters can be adjusted, the main technical parameters will be changed to cut the tension increased from 75N 80N, traffic increased from 140 L \ min instead 145L \ min, due to the presence of an impurity layer of polysilicon ingots, especially the cutting process to take points Segment cut harmful 1J, the impurity layer is mainly distributed in the polycrystalline ingot baby head about 25mm, the tail is about 40 mm;

(6)对整个加工过程进行监控,生产的多晶方锭尺寸控制在156.6。 (6) to monitor the entire process, the production of polycrystalline ingots control the size of 156.6 square.

[0019] 具体实施例3: [0019] Specific Example 3:

一种切片废旧砂浆二次循环利用方法,包括如下步骤: Slice one kind of mortar secondary waste recycling method, comprising the steps of:

(1)选取硅片切割使用过的废旧砂浆,每缸砂浆使用量约为325L,抽取废旧砂浆时使用过滤袋进行过滤,其中过滤袋为170目; (1) Select wafer cutting waste used mortar, mortar use per cylinder about 325L, using a filter bag filter used when extracting mortar, which is 170 mesh filter bag;

(2)对切片废旧砂浆进行重新配制调整,废旧砂浆的密度为1.628Kg\ m2,通过在砂浆搅拌缸里面添加55Kg(1200#)的新的砂进行调配,搅拌,搅拌时间为3.8小时,调配过程中使用密度测试仪进行砂浆密度测试,达到开方使用要求的砂浆密度1.668Kg\ m2即可; (2) The sections used mortar reconstituted adjustment, waste mortar density 1.628Kg \ m2, adding 55Kg (1200 #) for the deployment of new sand mortar by mixing tank inside, stirring, stirring time is 3.8 hours, deployment used during density tester mortar density test, to prescribe requirements of mortar density 1.668Kg \ m2 can be;

(3)将开方机切割室砂浆循环口处添加不锈钢过滤网、将砂浆缸双层过滤网分别为80目和150目改为单层800目的过滤网; (3) adding a stainless steel mortar cycle prescribing cutter chamber mouth filter, double filter mortar cylinder was changed to 80 mesh and 150 mesh 800 single-purpose filter;

(4)对开方使用的主棍由原来槽距为156.8mm改为157.0mm槽距; (5)对设备工艺参数进行调整,主要技术参数将切割张力由原来75N改为80N,流量由原来的140 L\min改为145L\min,由于多晶硅锭存在杂质层,特将切割工艺采取分段式切害I],杂质层王要分布在多晶娃徒头部约为23mm、尾部约为37mm; (4) The main stick slot for prescribing the use of the original pitch of 156.8mm 157.0mm slot pitch change; (5) to adjust the process parameters of the equipment, the main technical parameters will be changed to cut the tension increased from 75N 80N, the flow from the original The 140 L \ min instead 145L \ min, due to the presence of an impurity layer of polysilicon ingots, especially the cutting process will take a segmented cut harm I], the king of the impurity layer distributed in polycrystalline head doll only about 23mm, the tail is about 37mm;

(6)对整个加工过程进行监控,生产的多晶方锭尺寸控制在156.3。 (6) to monitor the entire process, the production of polycrystalline ingots control the size of 156.3 square.

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CN105522657A *4 Dec 201527 Apr 2016湖南红太阳光电科技有限公司Secondary recycling method of silicon rod slicing waste mortar
Classifications
International ClassificationB28D7/00, B01D37/00
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