N'iji usoro ikuku gas desulfurization (FGD) nke ụlọ ọrụ ọkụ na-agba ọkụ dị ka ihe atụ, nyocha a na-enyocha okwu ndị dị na sistemu mmiri mkpofu FGD ọdịnala, dị ka nhazi adịghị mma na ọnụego ọdịda akụrụngwa dị elu. Site n'ọtụtụ njikarịcha na mgbanwe teknụzụ, a na-ebelata ọdịnaya siri ike dị na mmiri mkpofu, na-ahụ na arụ ọrụ sistemu nkịtị na ibelata ụgwọ ọrụ na mmezi. Atụpụtara ihe ngwọta na ndụmọdụ ndị bara uru, na-enye ntọala siri ike maka ịnweta mwepu mmiri efu efu n'ọdịnihu.
1. Nchịkọta Sistemu
Osisi ọkụ na-agba ọkụ na-ejikarị usoro limestone-gypsum wet FGD, nke na-eji limestone (CaCO₃) dị ka ihe na-amịkọrọ. Usoro a na-apụghị izere ezere na-emepụta mmiri mkpofu FGD. N'okwu a, sistemu FGD mmiri mmiri na-ekekọrịta otu ngalaba na-ahụ maka mmiri mkpofu. Ebe mmiri na-ekpofu ahịhịa bụ oke mmiri ozuzo gypsum, nke ejiri usoro ọdịnala (usoro tankị atọ) na-arụ ọrụ nke nwere ikike nke 22.8 t / h. A na-ebufe mmiri mkpofu a na-agwọ 6 kilomita na ebe a na-ekpofu uzuzu.
2. Isi Okwu na Sistemụ Mbụ
Diaphragm nke nfuli dosing na-agbapụtakarị ma ọ bụ daa, na-egbochi ọgwụ kemịkalụ na-aga n'ihu. Ọnụego ọdịda dị elu na igwe nzacha efere-na-frame na nfuli sludge na-abawanye mkpa ọrụ yana igbochi mkpochapụ sludge, na-ebelata sedimentation na nkọwa.
Mmiri mkpofu, sitere na oke mmiri ozuzo gypsum, nwere njupụta nke ihe dịka 1,040 kg/m³ nwere ọdịnaya siri ike nke 3.7%. Nke a mere ka sistemu ahụ nwee ike ịwepu mmiri a na-agwọ na-aga n'ihu ma na-achịkwa mkpokọta ion na-emerụ ahụ n'ime ihe ntinye.
3. Mgbanwe mbido
Na-emezi usoro ọgwụ kemịkalụ:
Awụnyere tankị kemịkalụ ndị ọzọ n'elu sistemu tankị atọ iji hụ na a na-eme ọgwụ na-agbanwe agbanwe site na ike ndọda, nke onye na-achịkwa ya.mita ịta n'ịntanetị.
Nsonaazụ: Mma mmiri dị mma, n'agbanyeghị na a ka chọrọ sedimentation. Mwepu kwa ụbọchị gbadara ruo 200 m³, nke ezughi oke maka ịrụ ọrụ kwụsiri ike nke sistemu FGD abụọ ahụ. Ọnụ ego iji ọgwụ eme ihe dị elu, nkezi 12 CNY/ton.
Iji mmiri mkpofu eme ihe maka mkpochapụ uzuzu:
Awụnyere nfuli n'okpuru nkọwapụta iji bugharịa akụkụ nke mmiri mkpofu na ebe ash silos maka ịgwakọta na iru mmiri.
Nsonaazụ: Mbelata nrụgide na saịtị mkpofu mana ka butere oke ọgba aghara yana enweghị nnabata na ụkpụrụ mwepụ.
4. Usoro nkwalite ugbu a
Site na iwu gburugburu ebe obibi siri ike, njikarịcha sistemu ọzọ dị mkpa.
4.1 Ndozi kemịkalụ na arụ ọrụ na-aga n'ihu
A na-edobe pH n'etiti 9-10 site na mmụba kemịkalụ:
Ojiji a na-eji kwa ụbọchị: lime (kg 45), coagulants (75kg), na flocculants.
Gbaa mbọ hụ na mwepu nke 240 m³ kwa ụbọchị nke mmiri dị ọcha ka arụ ọrụ sistemu na-adịte aka.
4.2 Na-emegharị tankị Slurry mberede
Iji tankị mberede eme ihe ugboro abụọ:
N'oge downtime: Slurry nchekwa.
N'oge ọrụ: sedimentation eke maka mmịpụta mmiri doro anya.
Nkwalite:
Agbakwunyere valves na ọkpọkọ na ọkwa tank dị iche iche iji mee ka arụ ọrụ na-agbanwe agbanwe.
A na-eweghachite gypsum sedimented na sistemụ maka ịpụpụ mmiri ma ọ bụ megharịa ya.
4.3 Mgbanwe sistemụ niile
E wedara mkpokọta ihe siri ike na mmiri mkpofu na-abata site n'ịtụgharị filtrate si sistemu na-ekpochapụ eriri eriri gaa na ebe nchekwa mmiri mkpofu.
Emelitere arụmọrụ sedimentation site na mbelata oge nhazi eke sitere na ọgwụ kemịkalụ na tankị mberede.
5. Uru nke Optimization
Ike emelitere:
Ịrụ ọrụ na-aga n'ihu na mwepu kwa ụbọchị nke ihe karịrị 400 m³ nke mmiri mkpofu na-akwado.
Njikwa ịta ahụhụ ion dị mma na onye na-etinye ihe.
Ọrụ ndị dị mfe:
Wepụrụ mkpa maka igwe nchọta efere-na-frame.
Mbelata ọrụ maka njikwa sludge.
Ntụkwasị obi Sistemu emelitere:
Mgbanwe ka ukwuu na nhazi nhazi mmiri mkpofu.
Elu akụrụngwa ntụkwasị obi.
Nchekwa ọnụ:
Ojiji kemịkalụ belatara ka wayo (1.4kg/t), coagulant (0.1 kg/t), na flocculants (0.23 kg/t).
E wedara ọnụ ahịa ọgwụgwọ ruo 5.4 CNY/ton.
Nchekwa kwa afọ nke ihe dịka 948,000 CNY na ọnụ ahịa kemịkal.
Mmechi
Nkwalite sistemu mmiri mkpofu FGD butere ịrụ ọrụ nke ọma, belata ọnụ ahịa, yana nrube isi na ụkpụrụ gburugburu ebe obibi siri ike. Usoro ndị a na-arụ ọrụ dịka ntụaka maka sistemu ndị yiri ya na-achọ iji nweta mpụta mmiri efu efu na nkwado ogologo oge.
Oge nzipu: Jan-21-2025
