相关中国专利

专利名称：一种二元复合的烟用过滤嘴棒专利申请号：201220244209.9公开号：CN202664223U申请日：2012.05.29公开日：2013.01.16申请人：常德芙蓉大亚化纤有限公司一种二元复合的烟用过滤嘴棒,包括实芯滤棒和空腔滤棒两段,实芯滤棒与香烟烟丝段接触,空腔滤棒与嘴接触,空腔滤棒、实芯滤棒和香烟烟丝段通过外表连接纸依次粘合为一体。实芯滤棒、空腔滤棒中的纤维为醋酸纤维、皱纸中的一种或两种。     

聚乳酸纤维滤棒在卷烟中的应用研究

对聚乳酸(PLA)纤维滤棒在卷烟中的应用效果进行了评价,重点分析了PLA纤维滤棒对卷烟烟气中主要酚类物质的过滤效率,并与二醋酸(CA)纤维滤棒进行对比。结果表明:与CA纤维滤棒相比较,采用PLA纤维滤棒后,卷烟烟气中常规成分基本不变,有害成分中亚硝胺释放量略有降低,氢氰酸、巴豆醛和苯酚释放量有一定程度升高,卷烟感官质量有一定程度提升; PLA纤维滤棒对卷烟烟气中酚类物质的过滤效率具有选择性,对烟气中单酚类物质的过滤效率明显高于双酚类物质的过滤效率,且PLA纤维滤棒越长对卷烟烟气中酚类物质的过滤效果越好; PLA纤维滤棒的综合性能接近CA纤维滤棒,作为卷烟滤棒具有良好的应用前景。     

壳牌煤气化飞灰过滤器滤棒故障的处理

首先介绍壳牌煤气化飞灰过滤器滤棒的结构和功能,然后主要对壳牌煤气化飞灰过滤器滤棒故障的处理措施进行分析,进一步提高滤棒的质量,通过对滤棒故障原因分析后提出可行的处理措施。     

KDF2滤棒成型的应用研究

烟草行业的技改力度不断加强,各卷烟企业材料及设备也不断更新换代.现对KDF2滤棒成型设备三醋酸甘油酯的喷洒方式进行改进,优化工艺参数,从而改善滤棒的硬度,寻求适宜的滤棒固化时间,为将来使用滤棒自动输送系统的配置提供可靠的技术支持。     

壳牌煤气化中高温高压过滤器及其注意事项

高温高压过滤器S1501是壳牌煤气化工艺中主要的除灰装置，S1501的滤棒是陶瓷的，贵重而且易碎，维护好S1501滤棒至关重要。从S1501滤棒日常安全运行维护、S1501滤棒事故处理、S1501滤棒在系统停车时的处理三个方面介绍其安全运行的注意事项。     

功能性纤维在纸质滤棒中的应用研究

选取麻类纤维、竹类纤维、罗布麻纤维和水溶性维纶4种功能性纤维,按质量分数为30%的比例分别添加至100%木浆中制成纸质滤棒,将其应用到红塔山卷烟(经典1956)中,研究了添加4种功能性纤维的纸质滤棒对卷烟常规烟气、致香成分的影响,并进行了感官质量评价。结果表明:4种功能性纤维卷制成的纸质滤棒满足现有纯纸质滤棒的指标要求;麻类纤维的纸质滤棒使卷烟烟气中的焦油和水分含量分别降低了26.97%,36.88%,含竹类纤维和罗布麻纤维的纸质滤棒分别使卷烟烟气中的水分含量提升了43.75%和26.25%;添加水溶性维纶的纸质滤棒对卷烟的烟气指标影响较小;分别添加4种功能性纤维的纸质滤棒并未改变烟气中的致香单体成分,只影响了各类致香单体成分的相对含量,竹类纤维和罗布麻纤维的焦油持水分能力较强;添加竹类纤维的纸质滤棒可降低纸质滤棒的刺激性,丰富卷烟香气,改善卷烟抽吸品质。     

用三醋酸甘油酯成型醋酸纤维滤棒的快速发射研究

<正>硬度是综合评价卷烟、滤棒加工性能和质量的重要指标之一。为了在较短时间内提高醋酸纤维滤棒的硬度,满足其快速成型发射的工艺要求,目前各烟草企业基本上不采用三醋酸甘油酯成型醋酸纤维滤棒,而改用快速增塑剂成型醋酸纤维滤棒(前者固化时间长、硬度在较短时间内达不到标准要求,后者对产品的内在质量及安全性有一定的负面影响)。为了稳定产品的内在质量、提高产品的安全性,从醋酸纤维滤棒不同硬度对卷烟机生产效率和消耗的影响、三醋酸甘油酯施加比例和醋酸纤维滤棒储存湿度三个方面进行了探讨,以期在保证醋酸纤维滤棒硬度≥84%的前提下,实现用三醋酸甘油酯成型的醋酸纤维滤棒在储存30 min后能达到快速发射的工艺要求。     

微孔钛滤棒在药剂生产中应用

本文简单介绍了微孔钛滤棒特性及其在我厂制剂、中药生产中应用，微孔钛滤棒和砂滤棒使用情况比较。     

丙纤滤棒成型技术路线及成型剂的研制

本文从聚丙烯丝束的物化性质出发，根据丙纤的溶解试验结果和卷烟滤棒性能要求，提出和选择了丙纤滤棒成型增塑剂试制的技术路线。报导了所研制增塑剂试制丙纤滤棒的结果。结果表明，所试制的丙纤滤棒的质量指标合格。     

合纤丝滤棒吸阻等效模型及其波动分析初探

气体通过滤棒的过程,实质是通过滤芯的深层过滤.化纤丝束制成的滤(芯)棒,其吸阻(阻力)大小及性能,由组成滤棒的化纤丝束的选型与制作工艺决定,是反映滤棒综合质量的重要指标.研究吸阻、稳定性和影响因素,对滤(芯)棒的综合性质和质量不可或缺,研究也可为其它类同的气固分离所借鉴.采用等效过滤模型,导出滤棒过滤特性、气体流量和过滤行为的基本方程,建立丝束、滤棒等参数的联系;将其应用于分析吸阻波动规律得知,吸阻波动的本质是滤棒孔隙率的波动,主要取决于丝束单旦和滤棒重量的波动.     

One-step fabrication of superhydrophobic and superoleophilic cigarette filters for oil-water separation

To develop a simple and efficient way to recycle used cigarette filters, we report on a one-step method for preparing superhydrophobic and superoleophilic cigarette filters for oil–water separation. The robust coating layer on the surface of the cellulose acetate fiber, along with the inherent rough texture of the cigarette filter, could lead to its surface that displayed superhydrophobicity and superoleophilicity. Water droplets can retain in spherical shapes on the modified cigarette filters, while oils were immediately absorbed by the cigarette filters with high absorption capacity. As a result, free oil–water mixtures were separated with efficiency of above 98.0% by the driving force of gravity, and water-in-oil emulsion was also separated with a promising flux of about 2500 L m^?2 h^?1. The purity of oil for the tested emulsion was above 99.96%, indicating extremely high separation efficiency. This method for the fabrication of the superhydrophobic and superoleophilic cigarette filters would be a good candidate for recycling the solid wastes and developing an economic oil–water separation material to meet emerging needs in practical applications.     

Synthesis and application of a molecularly imprinted polymer as a filter to reduce polycyclic aromatic hydrocarbon levels in mainstream cigarette smoke

The design and fabrication of novel filter is a promising approach to realize the reduction of harmful substance in mainstream cigarette smoke. In our work, a kind of pyrene (PYR) imprinted polymer as a part of improved filter has been successfully synthesized for the determination of polycyclic aromatic hydrocarbons (PAHs) in mainstream cigarette smoke. The molecularly imprinted polymers (MIPs) showed an good affinity towards PYR with binding capacity (Q_max) of 18.33 mg/g. Accordingly, the MIPs were used as a solid phase extraction (SPE) sorbent for the extraction and enrichment of PAHs in mixed samples to evaluate the selectivity about the MIPs. When the cellulose acetate (CA)-filter was replaced by a MIPs-filter, the amount of PAHs in the mainstream smoke was reduced by 63.6%. The application will provide technical support for the design of functional filters to reduce the harms brought by cigarette suction.     

Experimental Study on the Effect of Fiber Orientation on Filter Quality

Most filtration models assume that the air stream runs perpendicularly to the orientation of the filter fibers. However, cigarette filters remove aerosol particles apparently by a different filter configuration in that the fiber orientation almost parallels the air streamlines. To focus on the effect of fiber orientation, cellulose acetate filters were used in this work to facilitate the filter performance comparison. A piece of original round cigarette filter was molded to form a cube. The same piece of filter was used for both perpendicular and parallel orientations, to avoid the variability caused by the non-uniform filter media distribution. DOP aerosol particles used in the tests were generated by either a constant output aerosol nebulizer or an ultrasonic atomizing nozzle. A Po-210 radiation source was used to neutralize the challenge aerosols to the Boltzmann charge equilibrium. A scanning mobility particle sizer (for < 0.8 μm) and an aerodynamic particle sizer (for > 0.8 μm) were used to measure aerosol number concentrations and size distributions upstream and downstream of the cigarette filters. The results showed that parallel and orthogonal filters behave similarly. However, the pressure drop across parallel filter was lower than for the perpendicular filter, indicating that the airflow is more laminar passing through the parallel filters. Possibly for the same reason, aerosol penetration through parallel filter was higher than the orthogonal filter, although the difference may not be statistically significant. When a comparison of the fiber orientation is based on filter quality, orthogonal filter performs better than parallel filter, if face velocity is lower than 60 cm/s. Parallel filter performs better only when the particles are smaller than the most penetrating size and under high face velocity.     

滤棒长度对卷烟主流烟气中7种有害物质的影响研究

为研究滤棒长度对卷烟主流烟气中一氧化碳（CO）、氢氰酸（HCN）、NNK、氨、苯并[a]芘、苯酚及巴豆醛等7种有害物质的影响,制造出滤棒长度分别为30,27,24,21 mm的4种卷烟,测定其主流烟气中单位焦油的7种有害物质含量。结果表明,卷烟主流烟气中单位焦油苯并[a]芘、巴豆醛、CO的含量随滤棒长度减小而减少;HCN、NNK、NH3、苯酚的含量则有相反的变化规律;而卷烟主流烟气中单位焦油的危害性变化不大。     

活性炭孔结构对卷烟烟气过滤效率的影响

综述了活性炭孔径分布和比表面积对卷烟烟气过滤效率的影响,介绍了利用气体吸附法表征活性炭孔径分布的方法,并对活性炭滤嘴在低焦油卷烟设计中的应用进行了展望。     

非邻苯酯类增塑剂在卷烟中的转移行为

为研究非邻苯二甲酸酯类增塑剂在卷烟主流烟气的转移行为,将12种非邻苯酯类增塑剂添加到卷烟烟丝中,利用剑桥滤片捕集卷烟主流烟气,剑桥滤片和烟蒂分别经二氯甲烷萃取后,使用GC/MS/SIM分析各非邻苯酯类增塑剂在主流烟气的转移率和烟蒂的截留率。结果表明:12种非邻苯酯类增塑剂在主流烟气的转移率在7.86%～15.11%之间;12种非邻苯酯类增塑剂在烟蒂中的截留率在18.65%～36.54%之间;非邻苯酯类增塑剂在烟蒂中的截留率明显高于在主流烟气中的转移率,其中己二酸二乙酯在主流烟气中的转移率最低,而在烟蒂中截留率最高。     

Impact of Support Media on the Biological Treatment of Ozonated Drinking Water

An extensive review of the technical literature was conducted in order to determine the advantages and disadvantages of the various media used for biological filtration of ozonated drinking water. Granular activated carbon (GAC) filters were found to be significantly more efficient than conventional filters such as sand and anthracite coal. The type of activated carbon also impacted the performance of biofilters; due to their greater adsorption capacity, microporous GACs were found to be better suited than macroporus GACs.     

Oil-solids separation in edible oil processing

Sedimentation, centrifugation and filtration are the methods used in the edible oil industry to separate oils and solids. In many instances, the choice of separation method is based more on economics than technical reasons because more than one method of separation accomplishes the desired end result. Increasing manufacturing costs have brought about the development of automated filtration systems so that only one operator is needed for a battery of filters. Centrifuges are being used in applications formerly reserved only for filters and new processes have been developed that make former batch separation processes continuous. These developments have had the goal of maintaining separating efficiencies while reducing costs and increasing sanitation.     

荆芥挥发油-β-CD对苯酚的吸附及其在卷烟中的应用

采用饱和水溶液法制备荆芥挥发油-β-CD包合物,并用紫外可见分光光度法、X-射线衍射对包合物进行表征。研究了β-CD和荆芥挥发油-β-CD包合物吸附溶液中苯酚的性能。此外,还将β-CD以及荆芥挥发油-β-CD包合物作为添加剂添加到卷烟滤嘴中,研究其对卷烟主流烟气中苯酚的影响。结果表明,β-CD和荆芥挥发油-β-CD包合物吸附溶液中苯酚的动力学模型都是准二级动力学模型。当添加剂用量为30mg时,β-CD以及荆芥挥发油-β-CD包合物对卷烟主流烟气中苯酚的降低率分别为74.01%和88.9%。此外,添加剂还可以有效降低卷烟主流烟气中总粒相物的含量。