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Isikhwama sokuhlunga sothuli sihlukaniswa kanjani futhi sephukile?

Isikhathi: 2018-01-29

filter bag is to remove dust and pollutants in the bag house. The dust removal mechanism is mainly used to filter dust on the surface of the filter media. Prominent feature is the high dust removal efficiency, dust exhaust through the filter bag, the emission concentration is generally stable to reach 50mg / m ³ ngezansi, noma kuze kufike ku-5mg / m ³. Izidingo zanamuhla zokuvikela imvelo ziyanda futhi ziphakeme namhlanje, isikhwama Ukususwa kothuli lwendlu kunezinye izinzuzo ezingenakuqhathaniswa.

filter bag generally by the host, filter elements (dust bag) and backflush control and other auxiliary systems. The dust bag is the core component of the filter bag. The material, sewing, use and maintenance are related to the efficient and stable operation of the whole system. The air volume, dust concentration, load balance, flue gas temperature and humidity, corrosivity And other factors may cause dust bag failure failure. Among the many types of failure of dust bagging, wear is a common type and is closely related to the design, manufacture and application of the dust collector.

Izinhlobo nezimbangela zomonakalo wokugcotshwa kothuli

Ukulimala kokuhluleka kwesikhwama sothuli kuvame ukugqokwa, ukusha nokugqwala.

filter bag bag refers to the use of dust bag, due to repeated filtering and backflush state switching, bag bulging and shrinkage, bag and dust skeleton or other relative movement between the components, high-speed dust flow caused by erosion of local wear and tear.

Ukugcwala kwashunqa kubangelwa ukuphathwa kwegesi yokushisa engejwayelekile ye-flue, noma izinhlayiya zokushisa eziphakeme, izinga lokushisa liphezulu kunokubekezelela lokushisa kwesihlungi, ukuze izingxenye eziphakeme zokulimala nokulimazeka kuqhubeke.

Ukugqwala kwesikhwama kubangelwa yizakhi eziyingozi ekuphenduleni kwamakhemikhali weflue i-flue, okuholela ekunciphiseni izakhiwo zemishini zokulimaza nokuhluleka. Ukugqwala okungaphezulu kwezikhwama zokuhlunga kuvela ekuqukweni kwegesi ye-flue edlula imibandela, kungahlukaniswa kube ukugqwala kwegesi nokugqwala koketshezi, ukwakheka kwegesi okulimazayo lapho kukhona uketshezi, okungenzeka kubange ukulimala esikhwameni sokuhlunga.

Ngenxa yobukhona bezinto eziwuketshezi ku-flue gesi (njenge-condensation), ukwakheka kokunamathisela uthuli, ukuvimba igebe lesikhwama sokuhlunga, okuholele ekutheni isikhwama sothuli kuholele ukwehluleka kothuli.

Isikhwama sothuli sigqoka ukuvimbela nokwelashwa

Dust bagging is the main type of bag breakage failure. After other types of damage caused by small holes, the scouring of the dusty air stream also causes further wear. Wear and filter bag structure design, air flow organization, cleaning and cleaning are closely related. Dust filter bag wear parts are divided into the following five conditions: bag pocket, filter bag bag, bag bottom, bag bottom and filter bag inside, different parts of the wear and tear of the situation and its different factors, the solution Also different.

Ukugcwala isikhwama somlomo wesaka:

Isikhwama somlomo wesikhwama sigqoka okuningi ephaketheni phansi singu-400mm noma ngaphansi, ikakhulu kusuka ngaphakathi nangaphandle kokutholwa okonakele. Lolu hlobo lokugqoka ngaphambi kwesikhathi lubangelwa ikakhulu ukushaya komoya okuphoqekile okuhlukaniswe phakathi kwesikhwama, ukufafaza ngqo okubangelwa izindonga eziseceleni zesikhwama sokuhlunga. Ohlangothini oluchezukisayo lokuguguleka okuqhubekayo komoya ocindezelwe, isikhwama ngaphakathi koqimba lokuqala lomoya ocindezelwe ukuqhuma, bese kuthi ukushaywa kwendwangu, bese kuthi ekugcineni indawo yokuhlunga nayo ishaye. Lapho uhlangothi lwesikhwama sokuhlunga lonakalisiwe, ukumelana kwengxenye eyonakele kuzokwehla, bese kuthi igesi yokugcwala enothuli ingene ngokushesha isuka engxenyeni elimele bese ikhahlela leyo ngxenye eyonakalisiwe nge-diagonally ukuze yakhe i-voids entsha kanye ne-flue gas inlet entsha. Ukulimala komlomo okwenziwa ngomlomo, noma ngabe ikhanda lesikhwama kanye nokuhlukaniswa komzimba wesikhwama. Umonakalo onjalo ucindezelwa kakhulu umfutho womoya uphezulu kakhulu, ukushaya i-tube skew emfushane, ukuguqulwa kweplanethi yezimbali nezinye izimbangela, uma sekutholakele ukugqoka okunjalo, ngaphambi kwesikhwama esisha, ukushaya kwe-blow-back kufanele kuhlolwe noma kulungiswe.

Ukugqokwa kwesikhwama somzimba:

Ukugqokwa kwesikhwama sothuli, ukugoba okujwayelekile kwesihlwathi okuphakathi, kuhlukaniswe ngamacala ambalwa:

Uma izimpawu zomonakalo zivela ngaphakathi ngaphandle, zilimele endaweni yokuxhumana yesikhwama sebha yezikebhe, okubonisa ukuthi isikhwama esilinganiselwe ibha noma ukugqwala, isikhwama sokuhlunga esigqokwa noma umfutho womjovo siphezulu kakhulu, umjovo uvame kakhulu, ukuze isihlungi isikhwama nesikhwama sezingubo ezaphukile Izingosi zokuxhumana eziqhekekile ukuqhuma. Izinkinga ezinjalo zokugqoka zingaxazululwa ngokushintsha ikheji lesikhwama noma ngokulungisa i-blower.

If the damage marks from the outside to the inside, damaged in the bag cage bar at the point of contact. Often visible outside the filter bag (adjacent to the filter bag or box member) and bags have traces of wear and tear. This type of wear is the bag cage deformation or filter bag installation is too small, the filter bag is too large or loose diameter, causing the filter bag and filter bag, filter bag and the contact between the dust box components in the backflush process due to the filter bag Bloated friction with each other to wear. Generally need to replace the bag cage, and ensure the installation quality. filter bag design process, should avoid the filter bag spacing and the distance between the filter bag and the box structure is too small.

Ingxenye engezansi yokugqoka kwesikhwama sokuhlunga

Ukugqoka okungaphansi kwesikhwama sokuhlunga kuvame kakhulu phansi kwesikhwama sokuhlunga kuya phezulu okungama-300mm noma ngaphansi, gqoka okuningi ohlangothini olulodwa, okuphansi kakhulu, kuyakhanyisa kancane. Intambo yokuthunga yasendaweni izogqokwa, akukho ntambo yokugqoka yokuthunga iqinile. Ukugqoka okunjalo nokudiliza ngenxa yokushintshwa kwebhodi yezimbali, ukuhlukaniswa kwemgodi kuncane kakhulu, ukuguqulwa kwesikhwama sendawo, isikhwama sokuhlunga sikude kakhulu nezinye izimbangela. Isikhwama somuntu ngamunye nesihluzi sodonga lwebhokisi lonakalisiwe. Umonakalo onjalo udinga ukubheka ngokuqinile izinga lebhodi yezimbali, futhi kufanele usebenzise ikheji elenziwe kahle.

Ukugqalwa kwendandatho engxenyeni engezansi yesikhwama sokuhlunga:

Engxenyeni engezansi yesikhwama sokuhlunga esakhiwe yizingxenyeni zangaphandle zokufaka izindandatho. Lolu hlobo lokugqoka nokudilizwa kungenxa yothuli lwe-flue gesi ekuguguleni kwasendaweni okubangelwa yisikhwama sokuhlunga, okubonisa ukuhamba kwendawo yokuhlunga komoya kukhulu kakhulu. Okuvame kakhulu kusiqoqelalwazi sothuli olusezingeni eliphezulu noma okokususa uthuli olunamandla, lapho isikhwama sokuhlunga silimele, ukuguguleka komonakalo we-soot diagonal, njengoba umonakalo uqhubeka wanda, ukulimala okukhulu esikhwameni sokuhlunga kungadala ukuqhuma kwendandatho.

Ingxenye yangaphansi yesikhwama yokugqoka: kuvame kakhulu ukuxhumana nendawo yezikhwama, iningi umehluko phakathi kwekheji kanye nobubanzi bekheji lekheji likhulu kakhulu, okuphumela ekuhlanzweni kwesikhwama nokuhlunga lapho izinga lokuguqulwa likhulu kakhulu, kanye nomonakalo wesikhwama sezikhukhula. Ukufakwa esikhundleni kwekheji yezinga eliphakeme kungasombululwa.

Ngaphandle ezansi kwengubo yokuhlunga:

Indawo ephukile izimpawu ezisobala zokugqokwa nokuklebhula. Ngaphansi kwentambo yokuthunga, indwangu yokuhlunga igqokwa, ibucayi lapho phansi kwesikhwama kulimele noma kucinyiwe konke. Lolu hlobo lokugqoka nokudilizwa kungenxa yezinga lezinto ezibonakalayo ku-hopper liphezulu kakhulu, izinhlayiya zomoya zothuntu zigeleza ngqo kwizikhwama, okuholela ekugqokeni nasekuqhekekeni. Ngokwandisa umthamo wokukhuphuka komlotha, lungisa uhlelo lokususa i-ash hopper, ukugwema ukuqongelela uthuli luphezulu kakhulu, kungavimba ukwakheka kwe-hop hopper ngaphakathi esikhwameni sokuhlunga.

Ngaphansi kwesikhwama sokuhlunga esigqokwa kakhulu ezansi kwekhokhoji lesikhwanyana kuncane kakhulu noma isikhwama eside sokuhlunga, uhlelo lwekhwama lezikhwama lungasekela kuphela phansi kwesikhwama. Ukuhlanzwa kwesikhwama sokuhlunga kanye nokushintshwa kwesihlungi kubangele lapho phansi kwesikhwama kushona, okuholela ekujuleni kwangaphakathi kokugqokwa kwesikhwama.

Isaka lokugcwala ngaphakathi kokugqokwa:

Ukulimala ngaphakathi kwesikhwama kungaphezu kobubanzi bengaphandle lekheji futhi umehluko wesikhwama mkhulu kakhulu, okuholela ekuhlanzweni kwesikhwama sokuhlunga kanye nokuhlunga kwe-switching swing amplitude kukhulu kakhulu, isikhwama ngaphakathi nesikhwama sokuphambana kwe-cage kungukuphazamiseka .

Isikhwama ngaphakathi kwesakhiwo esonakalisiwe ekhejini lesikhwama, kukhona iminonjana yokugqwala lapho sigqokwa, ikakhulukazi ukugqwala kobuso besikhwama okwakhiwe nge-angled oxide ungqimba, ingaphezulu lekheji lesikhwama ngalesi sikhathi njenge-sandpaper, uma nje wonke uhlanza isikhwama kuzoba isikhwama esikhulu sokwehlukana, isikhwama sokugcina sokugqoka. Ukusetshenziswa kwezikhwama ezisezingeni eliphakeme ezifaniswe ukuhlunga izikhwama kugwema ukugqokwa ngaphakathi kwezikhwama zokuhlunga.

Dust bag is the heart of the entire dust collector, filter bag failure will make the entire device does not work properly. The main wear and tear filter bag design and application of dust, manufacturing, installation quality. The wear process starts locally, but as soon as a small wear hole is formed, it quickly spreads, causing a larger bag to break. Therefore, to strengthen the operation of the inspection, testing, early detection of small wear and tear, but also to avoid causing large-scale filter bag wear an important factor.