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 在国内麦草浆碱回收控制中,本研究成果率先采用了PROFIBUS工业现场总线技术,对蒸发、燃烧、苛化生产过程控制进行了联网监控,为碱回收过程的优化提供了良好的平台;在蒸发工段,采用了“软测量技术”间接测量黑液浓度,以便更好地保持出效浓黑液浓度的稳定;在燃烧工段,使用“步进式搜索自寻优控制原理”,实现了入炉黑液量、送风量、引风量的优化控制,提高了燃烧过程的效率;采用“专家系统”对碱回收炉生产实施安全连锁保护;采用“最优控制”技术,对苛化工段的硝化反映进行了优化控制。 利用该技术,可以使碱回收过程处于稳定、高效的运行状态,能明显降低碱回收成本,有利于碱回收技术的推广。
   采用PROFIBUS工业现场总线用于碱回收控制系统,将I/O通道分散到实际需要的现场设备附近,使安装和布线的费用开销减少到最低,从而使成本费用大大地节省,系统具有“开放”的通信接口,允许用户选用不同制造商生产的分散I/O装置和现场设备,可方便地构成集中式、集散式和分布式控制系统,对过程信息方便的实现共享,为系统优化构建了强劲的平台;在蒸发工段采用基于“软测量技术”的蒸发工段浓黑液出效浓度串级控制;在燃烧工段采用“步进式搜索自寻优控制原理”对燃烧工段、入炉黑液量、送风量、引风量进行优化控制;在苛化工段实现了消化反应的最优控制;利用SIMATIC PCS7作为平台、初步建立三层结构的制浆、造纸工业CIPS(Computer Integrated Processing System)。  
  目前,在中国市场上活跃的碱回收系统国外供应商有:ABB、Honeywell、SIEMENS等。我们采用现场总线仪表,使得一次仪表的精确度大大提高,并且采用该优化控制方案后,控制效果也显著增强,因此,本研究成果提供的碱回收优化控制系统基本上可接近国外的碱回收控制水平,目前保持国内领先水平。 本项研究成果适用于对制浆造纸行业碱回收过程的优化控制,特别是准备进行企业信息化建设的大中型纸厂的新建和改造项目,也可用于对进口的以及国内的碱回收过程DCS控制系统进行改造。本研究采用了profibus工业现场总线技术,对碱回收整个系统进行了互联,并在此基础上进行了较为全面的优化控制,是目前使用较多的DCS控制系统的更新换代系统。经过本项目的技术改造后,可实现对碱回收系统进行全面地优化控制,节约回收和运行成本,为企业创造更多的利润。 
  目前国内一些厂家也提供整套碱回收DCS控制系统,北欧及加拿大的木浆厂的碱回收率可达80%以上。而本套控制系统碱回收率可达到甚至超过80%,黑液提取率约80%。对于规模75t浆/d,日回收碱约26.7t,满足了工艺要求;整体水平达到国外同类系统的先进水平,成功解决了制浆生产中有机物的污染问题;而且系统组成完善,符合国内制浆企业实情,可靠性高,性能价格比高。
二、经济效益  
 根据用户测算,使用本系统比原有系统(其它自动化供应商提供的系统及我们在“九五”研发的系统)多回收碱15~20%。另外系统的稳定正常运行使消耗减低,油耗大大降低。采用该优化控制方案后,一般可使回收一吨碱的成本低于1100元,这样一来,对于120t/d碱回收装置,按每天回收32t碱来计算,每天就有(1800-1100)×32=22400元的收益。
三、市场前景
   草浆是我国纸张抄造的主要浆种来源之一,碱回收是解决此类制浆所造成的黑液污染最彻底的方法,同时又可实现资源的循环使用。目前我国造纸工业废水排放量居各类工业废水排放量之首,每年排放约35.3亿吨。而造纸工业的污水主要来自碱法化学浆厂的黑液。黑液的治理目前基本上是采用工艺较为成熟的碱回收方法。近几年,造纸行业的市场景气程度在不断攀升,不断有新系统上马,而碱回收系统就是其中不可缺少的一种,同时由于造纸行业的中小企业纷纷要求对老系统进行改进和更新换代,因此,造纸行业对碱回收控制系统的需求量是很大的。所以本研究成果具有比较广阔的推广应用前景。 

为维护中技网平台交易秩序,保护技术需求方合法权益,本人(本单位)特做出以下承诺和声明:
一、本人(本单位)专利技术是经国家知识产权局审定认可,并取得了该项知识产权的专利证书,信息真实,技术可靠,无知识产权纠纷。
二、本人(本单位)愿意根据《中华人民共和国合同法》、《中华人民共和国专利法》、《中华人民共和国知识产权保护法》和《中华人民共和国促进科技成果转化法》以及中技网平台制定的技术转移交易规则和制度进行规范交易,自觉维护技术转移网络交易秩序。
三、如本人(本单位)在技术转移转化过程中有严重违规违约行为,给平台和交易相对方造成经济或财产损失,本人(本单位)愿意承担相应责任。

For maintenance or web platform trading order, protect the legal rights of the technical demand (units), make the following commitment and declaration:

1I (unit) patent technology is approved by the state intellectual property office and obtained the patent certificate of this intellectual property, the information is true, the technology is reliable, and there is no intellectual property dispute.

2, I (unit) willing to according to the law of the People's Republic of China contract law ", "patent law of the People's Republic of China, the intellectual property rights of the People's Republic of China protects a law" and "promote the conversion of scientific and technological achievements of the People's Republic of China" and wowed net platform to develop the trading rules and the system of technology transfer of regulate transactions, consciously safeguard the order of the technology transfer network transactions.

3.If I (unit) in the process of the transformation of technology transfer has seriously violated the breach, to economic or property damage caused by platform and trade each other, I (the unit) are willing to bear the corresponding legal responsibility.

交易规则说明

1、转让方在委托服务商转让期间,首先要认真阅读中技网会员协议和技术商品交易规则,其次要了解中技网有关收费标准,清楚应当遵守的相关权利和义务

2、购买方在中技网平台上认定购买某一项技术商品前,需要按照规定向中技网平台支付定金(完成意向性购买),但知识产权归属以及何时能够使用该项知识产权,视买卖双方协商确定后才能够使用,在此之前,建议您不要使用或侵犯他人的知识产权。

3、本网站对上传在首页各版块展示出售的技术产品实行有偿服务原则,对拟出售的专利技术产品交易价格以及市场前景,中技网将根据财政部无形资产评估有关标准和规定给予客观、公正的评价,具体收费标准请咨询客服人员。

1, the assignor in commissioned services during the transfer, the first thing to read or member agreement and the technical commodity trading rules, second to understand relevant charge standard or network platform, which shall comply with the relevant rights and obligations.

2, the purchaser on or network platform, decided to buy a certain technology products before, need to pay a deposit in accordance with the relevant provisions to or net platform (complete intentional purchase), but the intellectual property ownership and when to be able to use the intellectual property rights, after the negotiation between the buyers and sellers can use, before that, it is recommended that you do not use or infringe others' intellectual property.

3, this website to upload on the home page of each section shows the sale of products shall be paid for the service principle, to plans to sell the patent technology of the product market price and the market prospects, or network will according to the ministry of finance of intangible assets evaluation of relevant standards and regulations to give an objective and fair evaluation, specific charge standard, please consult customer service staff.

交易流程

根据中技网交易规则,技术买卖双方应当遵循友好、自愿和有偿原则进行交易,为此,请技术买卖双方应当遵循中技网制定的交易流程进行有序买卖。
一、买方确定购买意向→支付定金→签订意向性购买协议→买卖双方签订正式协议→买方付款 →办理技术转移交割手续→资金结算→交易完成→退还定金。

二、卖方提交信息资料→上传有效证明文件→平台审核→与平台签订相关协议和信用保证金协议→缴纳信用保证金→平台发布出让信息→确定买家→签订协议→出让技术→资金结算→交易完成→退还信用保证金。

    According to trading rules or network technology between buyer and seller shall follow the principle of friendly, voluntary and paid, for this, please technology between buyer and seller shall follow the wowed the orderly sale network of trading process.

One, the buyer to determine the purchase intentions to pay the deposit, intentional purchase agreement to sign a formal agreement between the seller and the buyer, the buyer's payment to delivery technology transfer formalities, fund settlement - deal - return deposit.

Second, the seller submit information to upload valid documents to review platform, and platform signed the relevant agreement and credit margin agreements to pay credit deposit, platform release transfer information to determine the buyer, signed an agreement to transfer technology, funds and settlements - deal - the refund credit deposit

重要提示

1、技术转让方请务必遵守《中华人民共和国合同法》、《中华人民共和国专利法》、《中华人民共和国知识产权法》、《中华人民共和国促进科技成果转化法》等相关法律法规,诚实守信,不得伪造或提供虚假技术信息。

2、技术购买方在决定购买技术商品前,首先要了解中技网的有关交易流程和技术转让方的详细信息,在购买过程中对有关技术信息产生疑问或不清楚的地方,请随时与技术信息发布单位取得联系。

3、中技网作为市场化运作的专业技术买卖服务平台,由中国技术市场协会主办,是国内权威的专业技术交易分类信息网,专业、专注、权威,面向国内外发布技术转让和技术需求项目信息,服务周到,信誉第一,交易规范,请客户认准中技网官方网址,切勿上当受骗。

1, technology transferor please be sure to abide by the law of the People's Republic of China contract law ", "patent law of the People's Republic of China" and "intellectual property law of the People's Republic of China", "promote the conversion of scientific and technological achievements of the People's Republic of China" and other relevant laws and regulations, the honest code of honor, are not allowed to fake or providing false information technology.

2 the purchaser prior to the decision to buy technology goods, technology, the first thing to understand the assignor or network related transaction process and technology of detailed information, in the process of buying to doubt the related technical information or unclear, please feel free to get in touch with technical information release unit.

3, or as a market-oriented operation of professional technology trading service platform, sponsored by the China technology market association, is the domestic authority of professional technology trading classified information network, professional, dedicated, authority, and the release technology transfer and technology at home and abroad demand project information, service, credit first, trade specification, please customers look or net official web site, please do not be deceived.

郑重声明

  会员在服务期内私自线下与相对交易方进行交易,由当事人自行承担法律后果,所产生的经济或知识产权纠纷中技网不承担任何法律责任。

Membership in the service period to offline, transacting business with relatively by the parties to bear the legal consequences, economic or intellectual property rights disputes or generated by the network does not assume any legal liability.

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