近年來,建造沼氣池的菜農越來越多,使用效果也很好:不僅大量的秸稈、垃la圾ji問wen題ti解jie決jue了le,還hai增zeng加jia了le有you機ji肥fei,降jiang低di了le成cheng本ben,提ti高gao了le蔬shu菜cai的de品pin質zhi。但dan記ji者zhe在zai采cai訪fang過guo程cheng中zhong卻que發fa現xian,懂dong得de如ru何he養yang護hu沼zhao氣qi池chi的de菜cai農nong寥liao寥liao無wu幾ji,雖sui然ran沼zhao氣qi池chi在zai建jian造zao之zhi初chu,施shi工gong單dan位wei承cheng諾nuo使shi用yong年nian限xian可ke超chao過guo30nian,danshiruguocainongbuzhuyipingrideyanghu,zhaoqichideshoumingjiangdadazhekou。jinqi,jizhecaifanglezhaoqichijianzaodezhuanyejishuyuanmoujinliangshifu,qingtagendajiatanyitanzhaoqichiderichangyanghu。
一、夏季沼氣池的養護
首shou先xian,防fang止zhi空kong池chi,做zuo好hao池chi壁bi的de保bao潮chao養yang護hu。目mu前qian建jian造zao的de沼zhao氣qi池chi一yi般ban為wei混hun凝ning土tu澆jiao築zhu,而er水shui泥ni是shi一yi種zhong多duo孔kong性xing的de建jian築zhu材cai料liao,如ru果guo沼zhao氣qi池chi在zai夏xia季ji空kong池chi,遭zao遇yu高gao溫wen幹gan燥zao的de環huan境jing,很hen容rong易yi使shi水shui泥ni毛mao細xi孔kong開kai放fang,破po壞huai掉diao池chi壁bi結jie構gou。因yin此ci,夏xia季ji沼zhao氣qi池chi要yao杜du絕jue空kong池chi,即ji使shi菜cai農nong夏xia季ji歇xie棚peng,沼zhao氣qi池chi停ting用yong時shi,也ye需xu在zai沼zhao氣qi池chi內nei注zhu滿man水shui,起qi到dao保bao護hu池chi壁bi的de作zuo用yong。
qici,jinchuliaokoubunengbeiyushuiguanman。xiajiyushuijiaoduo,yaozuohaojinchuliaokoudefangyugongzuo,shouguangdengdizhaoqichiduoshujianzaozaipengshiwaimian,jiazhijinliaokouhechuliaokoumifengxingbushihenhao,yidanjinruchineideyushuiguoduo,huijianhuanzhaoqidechanshengsulv,yingxiangdaozhaoqichidezhengchangshiyong。lingwai,xiajiwendugao,fajiaosudukuai,zhaoqichanshengliangda,yaozhuyiyalibiao,jishipaiqi。
二、秋季換料前的養護
秋qiu季ji沼zhao氣qi池chi在zai換huan料liao之zhi前qian,如ru果guo是shi使shi用yong多duo年nian的de沼zhao氣qi池chi,要yao進jin行xing池chi體ti檢jian修xiu,如ru果guo池chi壁bi塗tu刷shua的de密mi封feng塗tu料liao出chu現xian脫tuo落luo,需xu再zai塗tu刷shua一yi層ceng密mi封feng塗tu料liao,一yi來lai可ke以yi提ti高gao密mi封feng性xing能neng,二er來lai可ke以yi防fang止zhi沼zhao液ye腐fu蝕shi池chi壁bi。操cao作zuo時shi一yi定ding要yao注zhu意yi打da開kai活huo動dong蓋gai,拔ba掉diao輸shu氣qi管guan,使shi進jin料liao口kou、出料口、導(dao)氣(qi)管(guan)口(kou)通(tong)風(feng),或(huo)用(yong)鼓(gu)風(feng)機(ji)向(xiang)池(chi)內(nei)吹(chui)風(feng),更(geng)換(huan)池(chi)內(nei)空(kong)氣(qi)。操(cao)作(zuo)人(ren)員(yuan)下(xia)池(chi)之(zhi)前(qian)可(ke)用(yong)小(xiao)動(dong)物(wu)或(huo)點(dian)燃(ran)的(de)蠟(la)燭(zhu)試(shi)驗(yan),確(que)保(bao)安(an)全(quan)之(zhi)後(hou)再(zai)下(xia)池(chi)檢(jian)修(xiu)。下(xia)池(chi)人(ren)員(yuan)要(yao)係(xi)上(shang)安(an)全(quan)繩(sheng),池(chi)外(wai)留(liu)專(zhuan)人(ren)看(kan)護(hu)。
換料時至少要換掉原來沼液的70%—80%,liuqushaoliangyongzuojunzhong,ranhouzhongxinjinliao。xuyaochedigenghuanxinliaodezhaoqichi,zuihaoxuanyongchunjingniufenzuoweiqidongjunzhong,jinliaoshixuyaozhuyi,qiejijiangzhizhulaomanzibujingfensuichulizhijietouruzhaoqichi,liruhuanggua、茄子等,容易發酵不徹底,堵塞在出料口,影響到沼氣池的使用。此外,大蔥、大蒜、韭菜等辛辣蔬菜的老梗也不能投入沼氣池。
除(chu)去(qu)池(chi)體(ti)的(de)日(ri)常(chang)養(yang)護(hu),沼(zhao)氣(qi)池(chi)的(de)配(pei)套(tao)設(she)施(shi)也(ye)需(xu)要(yao)定(ding)期(qi)檢(jian)修(xiu)。輸(shu)氣(qi)管(guan)道(dao)以(yi)及(ji)各(ge)接(jie)頭(tou)處(chu)要(yao)定(ding)期(qi)檢(jian)修(xiu),防(fang)止(zhi)漏(lou)氣(qi),可(ke)用(yong)肥(fei)皂(zao)水(shui)在(zai)輸(shu)氣(qi)管(guan)道(dao)以(yi)及(ji)各(ge)接(jie)口(kou)處(chu)塗(tu)抹(mo)檢(jian)驗(yan);脫硫劑要定期再生,具體做法是將脫硫器內更換的脫硫劑倒出來,放在陰涼通風的地方放置 2—4天(tian),等(deng)到(dao)脫(tuo)硫(liu)劑(ji)的(de)顏(yan)色(se)變(bian)為(wei)褐(he)色(se),可(ke)繼(ji)續(xu)使(shi)用(yong),切(qie)忌(ji)直(zhi)接(jie)在(zai)調(tiao)控(kong)器(qi)中(zhong)通(tong)入(ru)空(kong)氣(qi)進(jin)行(xing)脫(tuo)硫(liu)再(zai)生(sheng),防(fang)止(zhi)脫(tuo)硫(liu)劑(ji)遇(yu)空(kong)氣(qi)發(fa)生(sheng)化(hua)學(xue)反(fan)應(ying)產(chan)生(sheng)高(gao)溫(wen),燒(shao)壞(huai)脫(tuo)硫(liu)器(qi);安裝在沼氣池出氣口處的脫水器,過1—3個月要檢查一次,脫水器中的水積多了,要將水倒出,以免堵塞管道,導致沼氣灶點不著火。如果管道進水,可用打氣筒將水吹出。
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