Pov tseg ntoo: qhov chaw tseem ceeb ntawm kev tsim thiab hom pov tseg

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Ntxhais hav zoov hu ua lub ntsws ntawm peb lub ntiaj teb. Lawv koom nrog hauv cov txheej txheem ntawm photosynthesis, ua kom thaj av nyob. Yog li ntawd, kev rov ua dua ntawm cov khib nyiab ntoo yog qhov tseem ceeb heev. Kev txheeb cais qhia tau hais tias kwv yees li ib feem peb ntawm tag nrho cov ntoo tseem nyob hauv hav zoov. Nyias trunks ntawm cov tub ntxhais hluas txoj kev loj hlob, ceg, hemp - tag nrho cov no tseem mus rot nyob rau hauv qhov chaw. Kev tsim tawm los ntawm cov khib nyiab ntoo ntawm hom no tsis tsim. Cov ntsiab lus tseem ceeb ntawm tsob ntoo ua rau nyuaj rau kev kho dua tshiab ntawm hav zoov tom qab ua tiav ntawm kev poob.

Qhov tseeb tseem ceeb

Cuttings, sawdust, bark, uas yog tsim thaum lub sij hawm ua ntoo, kuj tsis siv nyob rau hauv ib txoj kev. Feem ntau cov khib nyiab no tsuas yog hlawv hauv qhov cub xwb.

Daim ntawv thov no tsim nyog li cas? Cov ntoo khib nyiab tuaj yeem siv tau zoo? Cia peb sim nrhiav cov lus teb rau cov lus nug no.

Use case

Tag nrho cov pov tseg ntoo muab faib ua ob peb pawg:

• ntim thiab ntim;
• chips;
• sawdust;
• txiav ntoo;
• natural wood pov tseg.

Cov kws tshaj lij ntseeg tias nws muaj peev xwm rov ua dua tshiab kom tag nrho, tsuas yog poob qis feem pua ntawm tsob ntoo.

Nyob hauv peb lub teb chaws, kev siv cov pov tseg ntoo txo kom hlawv. Lub hom phiaj tseem ceeb ntawm cov txheej txheem no yog kom tau txais cov cua sov ntxiv. Los ntawm kev pom ib puag ncig, txoj kev no muaj kev nyab xeeb rau ib puag ncig, tab sis nws tsis muaj txiaj ntsig zoo.

Kev ua cov briquettes

Muaj ntau ntau txoj hauv kev los hloov cov khib nyiab uas tsis xav tau los ua qhov txiaj ntsig zoo ntawm cov nyiaj tau los. Cov khib nyiab ntoo yog hloov mus rau hauv briquettes, thee, synthesis gas. Charcoal yog tau los ntawm pyrolysis (ntoo khib nyiab yog hlawv yam tsis tau nkag mus rau atmospheric oxygen). Cov khoom ntawm xws li kev hloov pauv yog tsim nyog rau kev siv tsis yog rau kev siv hauv tsev, tab sis kuj tseem nyob hauv metallurgical, lub teeb kev lag luam.

Cov roj tau los ntawm kev hlawv briquettes tau lees paub tias yog qhov zoo thiab kev lag luam ncaj ncees.

Tshwj xeeb resins yog siv los khi sawdust rau hauv briquettes.

Thaum gasification, ntoo pov tseg tau hloov mus rau hauv cov roj synthesis. Txoj kev no nyob rau hauv peb lub teb chaws yog siv nyob rau hauv me me ntim, txawm hais tias nws muaj ib tug meej kev khwv nyiaj txiag. Cov khoom uas tau tshwm sim yog qhov zoo tagnrho rau kev tsim cov roj av thiab cov roj diesel.

Los ntawm qhov kev xav ntawm ecological, gasification poses xyaum tsis muaj kev phom sij rau ib puag ncig, vim tias muaj teeb meem impurities tsis nkag mus rau hauv lub ntiaj teb huab cua.

Industrial applications

Ntau hom ntoo pov tseg yog siv rau kev lag luam. Piv txwv li, lawv xav tau hauv kev tsim cov khoom siv rau kev lag luam rooj tog.

Cov khib nyiab zoo li no yog qhov tseem ceeb hauv kev tsim cov chipboard, fiberboard, thiab kev tsim kho. Tam sim no, sawdust, ntoo shavings yog siv nyob rau hauv lub creation ntawm pyrotechnic khoom, cov khoom ua si. Hauv kev ua liaj ua teb, pov tseg yog siv los ua tsiaj pub thiab chiv. Kev lag luam tshuaj lom neeg yog ib qho ntawm cov neeg siv khoom tseem ceeb ntawm cov khoom siv ntoo. Cov poov xab, oxalic acid, lignosulfonate, ethyl cawv yog tsim los ntawm nws.

Cov hmoov nplej yog siv los ua ib qho ntxiv rau hauv putty, kua nplaum, ntau yam khoom tsim los ntawm piezothermoplasticity.

Ntau cov ntoo pov tseg tseem nyob hauv peb lub tebchaws, kev pov tseg muaj peev xwm uas yog lub hauv paus ntawm Russia cov nyiaj tau los.

Kev faib cov khib nyiab ntoo thiab sawmilling

Cov seem uas tau tsim thaum lub sijhawm ua cov khoom siv raw ntawm cov tuam txhab lag luam tau muab faib ua ob peb pawg:

• -Tails thiab Croakers ntawm Camts;
• kev hloov pauv thiab ncua ntev ntawm kev ua haujlwm ntoo thiab sawmilling (kawg txiav ntawm cov laug cam thiab cav), xaum, txiav txiav, txiav qhov qhuav;
• pobzeb thiab plywood: seem ntawm plywood, veneer, chipboard;
• chips tau txais thaum lub sijhawm ua cov khoom thiab qhov khoob hauv cov chaw tsim khoom thiab cov cuab yeej siv tshuab;
• ntoo hmoov av, sawdust thaum sawing ntoo;
• bark tsim thaum lub sij hawm ntxuav ntawm roundwood hauv plywood, sawmills, pulp thiab ntawv ntau lawm.

Rau cov hom no, koj tuaj yeem ntxiv cov khoom ntoo tseem ceeb uas tau tsim thaum lub sijhawm tsim cov rooj tog hauv ntau lub rooj cob qhia uas tau tshwm sim nyob rau xyoo tas los no hauv peb lub tebchaws.

Tag nrho cov khib nyiab no tau muab faib ua cov ntoo loj (kev lag luam) pov tseg, qhov ntau thiab tsawg uas tsim nyog rau kev siv tshuab ua kom raug siv cov khoom siv ntoo, nrog rau cov khoom me me, tshwj xeeb yog tsim nyog rau kev siv..

Kev sib xyaw thiab kev ua haujlwm ntawm daim ntawv thov

Tam sim no, yuav luag tag nrho cov pov tseg ntoo tau rov ua dua tshiab hauv cov tebchaws nyob sab Europe. Nyob rau hauv lawv, li ntawm 11% ntog ntawm tawv ntoo, 13% ntawm sawdust, 10% ntawm shavings. Tsuas yog 25% yog kev lag luam pov tseg uas tuaj yeem dhau los ua cov khoom siv raw rau kev tsim cov laug cam, kev ua haujlwm ntawm cov ntaub so ntswg thiab ntawv.

Nyob rau hauv teb chaws USA, tom qab kev taw qhia ntawm chippers thiab debarkers rau hauv ntau lawm, high-zoo chips tau txais, ntxiv mus, nws muaj peev xwm txo tau tus nqi ntawm nws cov khoom.

Feem ntau ntawm cov khoom pov tseg yog siv rau hauv cov ntaub so ntswg thiab cov ntawv tsim. Vim tias cov khoom siv raw khoom tsis txaus, ntau lub teb chaws thoob ntiaj teb sim siv cov khoom pov tseg.

Yog tias nyob rau hauv Soviet lub sij hawm slabs tau siv ntau npaum li roj, hnub no qhov teeb meem tau hloov. Cov hom ntoo pov tseg no tau pib siv rau hauv kev tsim rooj tog. Parquet yog tau los ntawm cov khib nyiab loj,cov ntaub thaiv npog, cov thawv ntim khoom, cov thoob. Nyob rau hauv kev tsim kho kev lag luam, lawv mus rau zus tau tej cov pressed joinery khoom.

Summarize

Ntawm cov chaw cog lus rau kev siv cov khib nyiab ntoo, nws yog ib qho tsim nyog yuav tsum nco ntsoov lawv siv hauv kev tsim cov khoom siv briquette. Nyob rau hauv xyoo tas los no, cov nroj tsuag tshwj xeeb tau qhib nyob rau hauv ntau thaj tsam Lavxias teb sab uas ua cov ntoo thiab chips residues rau hauv cov granules thiab briquettes. Piv txwv li, cov kev lag luam no twb tau qhia lawv cov txiaj ntsig thiab kev ua tiav hauv Karelia, thaj tsam Arkhangelsk.

Cov cheeb tsam no yog "tso hav zoov" ntawm Russia. Yog tias ua ntej lawv feem ntau koom nrog kev txiav, thiab tsis muaj kev saib xyuas rau cov teeb meem ntawm kev ua tiav, tam sim no qhov xwm txheej tau hloov mus rau qhov zoo dua.

Kev paub txog qhov tseem ceeb npaum li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau cog cov noob rau ntawm qhov chaw ntawm kev txiav hav zoov, cov txheej txheem tshiab ntawm cov ntoo pov tseg tau raug qhia hauv thaj av Arkhangelsk, suav nrog ncaj qha rau ntawm daim phiaj nws tus kheej.

Cov nroj tsuag hauv tsev briquette tau paub txog kev siv tshuab ua cov khoom siv zoo, yog li kev muag khoom tiav tsis yog tsuas yog nyob rau hauv kev lag luam hauv tsev, tab sis kuj sab nraum Lavxias teb sab Federation.

Environmentalists ntseeg hais tias nrog kev sib sib zog nqus ntawm cov ntoo, yuav tsis muaj kev puas tsuaj rau ib puag ncig, thiab lub teb chaws yuav muaj peev xwm suav tau nyiaj txiag ruaj khov.