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新莆京www483net滤袋使用寿命的影响因素分析

文章发布: 发表时间: 2017-06-01 10:30:25

跟着新标准的实施,对水泥企业粉尘污染排放请求将愈加严格,其环保请求将更高。依据现在水泥企业粉尘污染办理现状,将来新莆京www483net将是水泥企业粉尘污染办理设备的首选,尤其是要点区域。滤袋是新莆京www483net的要害配件之一,其不只关系到粉尘污染能否合格排放,另外运用寿数长短直接关系到袋除尘器的运转本钱。假如要延伸滤袋运用寿数,必须从工艺规划、清灰办法、运用办理等多个方面进行归纳思考。这篇文章依据水泥企业对于新莆京www483net运用作用,剖析影响滤袋运用寿数的因素及措施,供参阅。
With the implementation of the new standards, the cement company dust pollution discharge request will be more stringent, and its environmental protection requirements will be higher. According to present cement company dust pollution management present situation, in the future, environmental protection dust removal equipment will be cement company dust pollution treatment equipment preferred, especially key areas. The bag is one of the key parts of environmental protection equipment, which is not only related to dust pollution emissions can also use qualified, life is directly related to the operation cost of bag dust collector. If you want to extend using his bag, must from the process planning, the cleaning methods, the use of management and other aspects of thinking. This article on the basis of the cement company for environmental protection equipment use, analyzes the influence factors and measures of using his bag, for reference.
1清灰办法对滤袋寿数的影响
1 Effect of cleaning method of filter bag of life
某水泥厂水泥磨为开路出产,磨尾配有新莆京www483net。曾先后3次对水泥磨尾除尘设备进行技术改造,每次改造都随同清灰办法的改变,对滤袋运用寿数发作了较大的影响。
Cement mill for a cement mill for open production, grinding tail equipped with environmental protection dust removal equipment. He has 3 times of cement mill dedusting equipment for technological transformation, each transformation with cleaning method of filter bag change, using his attack a greater impact.
1.1新莆京www483net技改经过与作用
1.1, environmental protection dust removal equipment transformation process and role
?
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1)该水泥磨在20世纪70年代装备ZX100-56型新莆京www483net,滤料选用涤纶208绒布后曾改用涤纶针刺毡。因为机械振打对滤袋的磨损大,滤袋运用寿数仅1~3个多月。
1) the cement mill was equipped with ZX100-56 type environmental protection dust removal equipment in 1970s, and the filter material was made of polyester 208 lint, and then it was changed to polyester needle felt. Because the mechanical vibration of the large wear bag bag, using his only 1~3 months.
2)前期水泥磨尾选用FD180-78型屏闭吹振式新莆京www483net,其清灰办法为在线反吹风清灰,滤料选用涤纶208绒布。清灰对滤袋的磨损大,在运用2个月后,因滤袋上积灰较厚,袋除尘器的阻力增大,通风量大幅下降,不光影响水泥磨的产质量,并且构成磨头扬尘,严峻危害岗位操作人员的身体健康。改为运用500g/m2涤纶针刺毡滤料后,前期作用杰出,但不久反吹风组织毛病增多,人为举高反吹风臂后,虽然清灰组织毛病削减,但清灰作用明显下降,糊袋景象非常严峻(尤其是冬天,不到2个月就糊袋),使新莆京www483net通风量大起伏下降。滤袋的运用寿数通常在3~6个月(冬天运用寿数较短)。
2) early cement mill tail selected FD180-78 type screen closed vibration blowing type environmental protection dust removal equipment, its cleaning method for online anti blowing, cleaning, filter material selection of polyester 208 lint. The cleaning of the filter bag wear large, in use after 2 months, because the filter bag dust bag dust remover is thick, the resistance increases, the ventilation volume dropped significantly, not only affect the yield and quality of cement mill, and a grinding dust, serious harm to the health of the operator post. Instead of using the 500g/m2 polyester needle felt after the early effect outstanding, but soon anti hair tissue with increased, artificial lift reverse blowing arm, while cleaning tissue with cuts, but the cleaning effect was decreased, paste bag scene is very serious (especially in winter, less than 2 months on the paste bag). The environmental protection equipment and large ventilation volume fluctuation drop. Using his bag is generally 3 to 6 months (winter using his short).
3)因水泥磨技术改造后产值添加,改用HM型新莆京www483net,选用500g/m2涤纶针刺毡滤料。因为HM65×4型袋除尘器选用内滤式过滤,滤袋捆扎在上下花板上的劳作量大,工作环境非常恶劣;另外,因为烟气含尘浓度高,滤袋容易呈现堵塞和掉袋景象。虽然先后选用布条捆扎、铁丝捆扎及不锈钢卡箍捆扎,但破袋和掉袋景象依然非常频频。在选用不锈钢卡箍捆扎后,又呈现不锈钢卡箍被冲刷损坏疑问。依据计算,该新莆京www483net滤袋的运用寿数在6~12个月。
3) because of the technical transformation of cement mill, the output value is added, and the HM type environmental protection dust removal equipment is used. The 500g/m2 polyester needle felt filter material is selected. Because the HM65 * 4 type bag filter used in filter filter, filter bag tied on board spend labor quantity, working environment is very poor; in addition, because the dust concentration is high, prone to clogging and bag bag drop scene. Although the use of cloth banding, wire binding and stainless steel band banding, but broken bags and bags are still very frequent scene. In the selection of stainless steel band banding, and stainless steel band has been washed damaged doubt. According to the calculation, the dust environmental protection equipment, using his bag in 6 ~ 12 months.
4)针对以上袋除尘器中存在的疑问,最终选用WDMC64-4型气箱脉冲新莆京www483net,选用500g/m2涤纶针刺毡滤料,其为脉冲式清灰,清灰才能强,清灰性能好,滤袋积灰能及时有用得到清理,相同因为选用涤纶针刺毡滤料,袋除尘器的实践阻力较低(约800Pa)。经过多年的运用,很少呈现破袋景象,且除尘器运转安稳,出口粉尘排放浓度较别的类型的袋除尘器低,到达排放请求。依据计算实践寿数2.5~3年。
4) aiming at the above questions in the bag filter, the final selection of WDMC64-4 type gas tank pulse dust environmental protection equipment, selection of 500g/m2 polyester needle felt, the pulse dust cleaning, cleaning ability, good cleaning performance, bag dust can be cleaned timely and useful, the same as the polyester needle felt in practice, the resistance of the bag filter is low (about 800Pa). After years of use, few bags are broken, and the dust collector runs smoothly. The outlet dust concentration is lower than other types of bag dust collector and the discharge request is reached. On the basis of the practice of 2.5 days to 3 years.

1.2运用作用剖析
1.2 use function analysis
经过上述新莆京www483net在同一水泥磨的运用,大家能够得出结论:
Through the application of the above-mentioned environmental protection dust removal equipment in the same cement mill, we can draw a conclusion:
1)从不一样清灰办法新莆京www483net的滤袋运用寿数看,清灰办法对滤袋的运用寿数影响较大,同时,不一样清灰办法对处理不一样含尘浓度的烟气作用差异也很大。
1) from the same cleaning way protection dust removing equipment using his bag, using his way of cleaning the filter bag is affected at the same time, the difference is not the same as the cleaning effect of flue gas treatment is not the same way of dust concentration is also great.
2)从涤纶208替换为涤纶针刺毡后运用作用看,在新莆京www483net清灰才能较弱的状况下,替换滤袋种类也难以大起伏进步滤袋的运用寿数。
2) from 208 to replace the polyester polyester felt after using the effect, in environmental protection equipment cleaning to weaker conditions, replace the filter bag type is difficult to progress using his bag of ups and downs.
3)新莆京www483net滤袋拆装方便性对滤袋的运用寿数也发作必定的影响。与WDMC64-4型气箱脉冲袋除尘器比较,FD180-78型屏闭吹振式袋除尘器和HM型袋除尘器拆装滤袋都需求进入袋室,操作人员的工作环境非常恶劣;别的,需求对滤袋进行人工绑扎,人为因素会影响滤袋的运用。
3) using his bag dust environmental protection equipment, convenient assembly and disassembly of the filter bag will also attack effect. Compared with the WDMC64-4 type air box pulse bag filter, FD180-78 type vibrating screen closed and blowing bag bag filter and HM bag dust collector needs to enter the bag room, working environment is very bad; the other, needs manual binding of human factors will influence the use of bag, bag.
4)从出口粉尘排放看,WDMC64-4型气箱脉冲袋除尘器因掉袋、破袋景象少,运用寿数长等长处,不只设备毛病少,并且出口粉尘排放安稳,合格可靠性高。因为选型的WDMC64-4型气箱脉冲袋除尘器充裕度增大,实践过滤风速较低,因而,实践测定的压损是较低的(<800Pa),这也是滤袋运用寿数长的重要因素。虽然该除尘器一次性设备出资较大,但滤袋运用寿数添加,不只运转费用下降,并且毛病率下降,归纳来说仍是经济的。
4) from dust emission, WDMC64-4 type air box pulse bag filter bag, bag breaking out because the scene less, using his long strengths, not only with less equipment, and dust emission and high reliability, qualified. Because the abundance increases WDMC64-4 type gas tank type pulse bag dust collector, the practice of filtration velocity is low, therefore, the practice of pressure loss determination is low (<800Pa), which is an important factor of life long bag use. Although the precipitator one-time equipment investment is larger, but using his bag to add, not only reduced operation cost, and the failure rate decreased, the economy is still up.
2过滤风速对滤袋寿数的影响
Effect of wind speed on the 2 filter bag life
在水泥厂规划和技术改造中,袋除尘器规划风量的断定常常依据理论计算和运用经验数据,通常思考出产工况的实践最大风量乘以1.1~1.2储藏系数。依照惯例办法展开规划,在实
In the cement plant planning and technical transformation, the determination of the air volume of the bag filter is often based on theoretical calculations and empirical data, usually considering the practice of production conditions, the maximum air volume multiplied by the 1.1~1.2 storage factor. In accordance with conventional measures to carry out planning, in reality
际出产中,袋除尘器阻力存在偏高景象,风机负荷大,简单呈现破袋与糊袋景象,滤袋寿数短。
During production, the bag filter has the high resistance scene, fan load, present the bag breaking and paste bag bag to his short sight.
2.1存在疑问
2.1 there is doubt
1)新莆京www483net / 新投入运用时,运用作用较好。但运用一段时间后,阻力逐渐上升,只能开大风机来满足出产需求,但很快会发现袋除尘器通风大幅下降景象,构成主机产质量下降或扬尘点粉尘浓度添加。
1) the application of environmental protection dust removal equipment is better when it is put into use. But use after a period of time, the resistance increased gradually, only the wind machine to satisfy production needs, but soon found the bag filter ventilation decline scene, the decline in the quality of production. The host machine is composed of dust or dust concentration.
2)依照惯例办法规划(过滤风速0.8~1.2m/min)的袋除尘器在运用过程中经常会呈现滤袋因破袋构成运用寿数短疑问。清灰强度越弱,寿数越短。好像等条件下滤袋运用寿数,机械振打清灰低于反吹风,反吹风低于脉冲。因为冬天袋除尘器内部结露可能性增强,假如清灰作用差,会加剧糊袋景象的发作。
2) in accordance with the practice of planning measures (filtration velocity of 0.8 ~ 1.2m/min) of the bag filter bag often present due to broken bag using his short questions in the application process. The cleaning strength is weak, life is short. If under the condition of using his bag, mechanical rapping lower than anti hair, anti hair below the pulse. Because the winter bag filter inside the possibility of increasing condensation, if the role of ash cleaning, will aggravate the "bag" scene attack.
3)出产过程中还发现,虽然新莆京www483net的滤袋没有损坏,但因为糊袋和滤袋板结而影响通风,滤袋只能作废。这也是影响滤袋运用寿数的因素之一。
3) the production process also found that although the filter bag of the environmental protection dust removal equipment is not damaged, the filter bag can only be cancelled because of the influence of the filter bag and the filter bag hardening. This is one of the factors that affect the use of his bag.
2.2因素剖析
2.2 factor analysis
1)传统滤料(如一般涤纶针刺毡)的过滤机理归于“粉尘层”过滤,袋除尘器在除尘过程中首先是粉尘微细颗粒进入织物空隙内,在滤袋外壁构成一层“粉尘层”,阻滞粉尘外溢来实现净化意图。跟着“粉尘层”增厚,滤袋阻力上升;当“粉尘层”到达必定厚度,经过清灰来铲除滤袋外壁粉尘,但大都进入滤袋织物空隙粉尘颗粒难以铲除。
1) traditional media (such as general polyester felt) the filtering mechanism to "dust layer" filter, bag filter in the dust removal process is the first micro dust particles into the fabric within the void, form a layer of dust layer in the outer bag, block dust spillover to achieve purification intention. With the "dust layer" thickening, filter bag resistance rise; when the "dust layer" reached a certain thickness; after cleaning the filter bag to remove the dust outside the wall, but mostly into the filter bag fabric gap, dust particles difficult to eradicate.
2)进入滤袋织物空隙的微细粉尘颗粒构成“粉尘层”厚度与负压和过滤速度有关。负压和过滤速度大,滤袋“粉尘层”增厚,进一步构成负压加大,最终到达一个平衡点。
2) the fine dust particles entering the gap of the bag filter form the dust layer, and the thickness is related to the negative pressure and the filtration speed. Negative pressure and filtration speed are large, filter bag "dust layer" thickening, further constitute negative pressure increased, and finally reached a balance point.
3)烟气含湿量大、清灰压缩空气含水量大、加热设备不准时开、袋除尘器及管路保温差等都能导致滤袋糊袋景象的呈现。
3) the large amount of moisture in the flue gas, the large amount of ash and compressed air, the poor heating equipment, the poor dust absorption in the bag filter and the insulation of the pipe can lead to the appearance of the bag paste bag.
2.3措施与作用
2.3 measures and effects
1)恰当添加袋除尘器的滤袋面积,能够下降过滤风速,延伸滤袋的运用寿数(见表3)。主要因素是:过滤风速大,滤袋“粉尘层”较厚,滤袋外壁搜集粉尘厚度添加快,袋除尘器阻力上升快,为了下降阻力,缩短清灰周期或添加清灰力度,需求添加清灰频次,又加大对滤料损伤,缩短滤袋的运用寿数。
1) appropriate to add the filter bag bag area, can reduce the filtration velocity, extending using his bag (see Table 3). The main factors are: filtration velocity, filter bag dust layer is thick, the thickness of dust collecting bag is added fast, bag dust collector resistance increase, in order to decrease the resistance, shorten the cleaning period or add cleaning efforts, add cleaning frequency, and increase the material damage, shorten its use life.
2)新莆京www483net标准肯定会添加出资费用和运转本钱。在实践出产中应依据经验寻觅一个合理经济的平衡点,以获得最好作用。详细需求联系烟气含尘浓度、湿度和温度等实际状况来断定。某水泥厂选用增大充裕度规划方案后,滤袋寿数大幅进步,袋除尘器毛病率大幅下降,在经济上也是非常有利的。
2) the environmental protection dust removal equipment standard will certainly add the investment expense and the operation cost. In practice production, we should seek a reasonable and economic balance point according to experience, so as to get the best effect. Detailed requirements relate to the actual conditions of flue gas, dust concentration, humidity and temperature. A cement plant with increased abundance of planning, life bag bag filter with substantial progress rate declined sharply in the economy is very favorable.

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