2023年全國碩士研究生考試考研英語一試題真題(含答案詳解+作文范文)_第1頁
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1、<p>  秸稈燃料成型機的原理</p><p>  機械學院 09級本科一班</p><p>  生物質成型機是將垃圾、木屑或農(nóng)作物秸稈及森林采伐剩余物經(jīng)粉碎、除塵、壓縮、定型等工序,壓縮成棒狀壓塊的一種固化成型設備。</p><p>  壓縮后的燃料呈塊狀,體積小,密度大,無任何添加劑。便于儲存和運輸,使單位面積的燃燒值提高十幾倍,產(chǎn)熱性與抗煉性與中質

2、煤接近。</p><p>  該設備采用螺旋預壓,活塞沖壓,二級壓縮工藝,機油強制冷卻,保證設備潤滑,解決了普通環(huán)模、平模壓塊機對秸稈的含水量要求較高和成型模具磨損快的不足。該設備具有電能消耗低、生產(chǎn)效率高、機械運行壽命長、維修率低等特點。</p><p>  成型可替代煤、油等常規(guī)能源,廣泛應用于生物質發(fā)電、工業(yè)生產(chǎn)、城鎮(zhèn)居民的供熱采暖、高檔壁爐原料。 </p><p

3、><b>  成型物料 </b></p><p>  原料:各種垃圾篩上物、生物質秸稈(牧草、稻草、谷草、麥秸、玉米秸、花生秧、豆秸、樹葉、棉籽皮等粗飼料和棉花秸、灌木、林產(chǎn)品下腳料等) </p><p>  秸稈燃料成型機,采用平模塊狀與壓輪之間擠壓力和??啄Σ亮ο嗷プ饔迷恚刮锪汐@得成型。</p><p>  物料在加工過

4、程中無需加入任何添加劑或粘結劑。秸稈等物料中含有一定的纖維素和木質素,其木質素是物料中的結構簡單體,屬于苯丙烷型的高分子化合物。具有增強細胞壁、粘合纖維素的作用。木質素屬非晶體,在常溫下主要部分不容易任何溶劑,沒有熔點,但有軟化點。當溫度達到一定值時,木質素軟化粘結力增加,并在一定壓力作用下使其纖維素分子團錯位、變形、延展,內部相鄰的生物顆料相互進行連接,重新組合而壓制成型。</p><p><b> 

5、 工藝流程:</b></p><p>  原料收集·原料粉碎·機械制粒成型·裝袋銷售</p><p>  根據(jù)農(nóng)作物的收獲期不同,要及時大量儲存原料,隨后粉碎,成型。成型時注意不要隨即裝袋,因熱脹冷縮的原理待冷卻410分鐘后,再裝袋運輸。</p><p>  秸稈燃料成型機性能介紹:</p><p>

6、  一、自動化程度高、產(chǎn)量高、價格低、耗電少、操作簡單、移動方便。如無電力設施可用柴油代替。</p><p>  二、物料適應能力強:適應于各種生物質原料成型、秸稈從粉末狀至60mm長度之間,含水率5-30%之間,都能加工成型。</p><p>  三、壓輪自動調節(jié)功能:利用推力軸承雙向旋轉的原理自動呢調節(jié)壓力角度,使物料部擠團、不悶機,保證出料成型的穩(wěn)定。</p><

7、p>  四、操作簡單實用方便:自動化程度高,用工少,僅需3人,使用人工上料或輸送機自動上料均可。</p><p>  五、模盤使用壽命長:該模具采用特種鋼材加特殊耐磨材料研制而成,三年內無需更換。秸稈燃料成型機使用說明:</p><p><b>  一、操作要求:</b></p><p>  1、開機前請先注入齒輪油25公斤(一次加油可連

8、續(xù)使用10以上),加油后擰緊注油孔塞頭。</p><p>  2、認真檢查電力線路,預防串點、漏電、確保使用安全。</p><p>  3、仔細檢查機器電機,傳動部件連接部位的螺栓,螺絲是否堅固,有無松動現(xiàn)象,以便及時緊固。</p><p>  4、根據(jù)物類的種類設定預熱溫度(玉米、小麥秸稈在80到90℃之間,花生殼稻殼在80到100℃之間)。</p>

9、<p>  5、開機后先空轉一分鐘,檢查機器轉動是否正常,正常時再少量進料,待機器內的余料出凈后,才可均勻上料。</p><p>  6、上料前,請務必注意原料中的堅硬雜物,杜絕石料、鐵塊等進入料倉以免損壞機器。</p><p>  7、每運行8小時須為萬向節(jié)上的注油空加油一次,一次注油2-3滴即可。停機前請上少許濕料,以便次日開機后順利出料。</p><p

10、><b>  二、注意事項:</b></p><p>  1、使用前請仔細閱讀本說明書各項內容,并按照操作規(guī)程及先后順序操作。</p><p>  2、成型機對水分的要求:玉米秸稈、小麥秸、稻草的含水量在10%-30%之間均可成型,以15%-20%之間為最佳。花生殼、稻殼的含水量在12%-14%之間時,成型效果最好。</p><p>  

11、3、料斗內無料時請勿空轉。如因原料水分超過30%發(fā)生悶機(不出料)現(xiàn)象時,應及時關閉機器,清理料斗內的濕料,再加入符合要求的原料即可正常生產(chǎn)。</p><p>  4、聽到機器有異常響動時,立即停機檢查,嚴禁取下料斗開機,以防壓輥傷人。</p><p><b>  秸稈燃料的特點:</b></p><p>  成型后的顆粒燃料,比重(speci

12、fic gravity)大,體積小,耐燃燒,便于儲存和運輸。成型后的體積是原料體積的1/30~40,比重是原料的10~15倍(密度為:0.8-1.4)熱值可達3400~6000大卡,是高揮發(fā)酚的固體燃料。</p><p><b>  附錄:外文</b></p><p>  Biomass briquetting machine is trash, sawdust or

13、 crop straw and the forest harvesting residues by crushing, dust, compression, setting and other steps, compressed into a rod pressing block of a curing equipment.</p><p>  The compressed fuel in bulk, small

14、 volume, high density, without any additives.Storage and transportation are convenient, the unit area of the combustion value increased ten times, heat resistance and coke and coal near</p><p>  The device a

15、dopts a spiral pre-pressing, piston punch, two stage compression process, oil cooling, guarantee the equipment lubrication, to solve the ordinary ring mold, flat molded block machine for straw moisture content higher and

16、 mould wear quickly deficiency.And has low power consumption, high production efficiency, mechanical operation and long life, low repair rate</p><p>  Molding can replace conventional energy sources such as

17、coal, oil, widely used in industrial production, biomass power generation, urban heating, high-grade fireplace materials</p><p>  Molding material</p><p>  Raw materials: </p><p>  

18、All kinds of waste residue on sieve, biomass straw ( straw, straw, grass, straw, corn stalks, peanut seedling, beans, leaves, seeds and other coarse fodder and cotton stalk, Bush, forest products and other waste ) </p

19、><p>  Straw fuel molding machine, using a flat die block and the pressing wheel extrusion force and friction force between the die hole interaction principle, make the material gain shaping.</p><p&g

20、t;  The material in the process needs no addition of any additives or binder.Straw material contains a certain amount of cellulose and lignin, lignin is the material in simple structure, belonging to the phenyl propane t

21、ype polymer compound, with enhanced cell wall, cellulose binding effect.Lignin is a crystal at room temperature, main part is not easy for any solvent, no melting point, but has a softening point.When the temperature rea

22、ches a certain value, lignin softening bond force is increased, </p><p>  Technological process:</p><p>  Material collection---- Grinding of raw materials---- Machinery granulation molding----

23、Packaging sales</p><p>  According to different crop harvest, timely storing large quantities of raw materials, then smash, molding.Molding time be careful not to immediately bagging, due to the principle of

24、 thermal expansion and contraction after cooling after 410 minutes, and bagging transport</p><p>  Performance introduction:</p><p>  One, a high degree of automation, high yield, low cost, less

25、 power consumption, simple operation, convenient movement, such as no power facilities available diesel substitute.</p><p>  In two, the material adaptability: adapted to a variety of biomass straw forming,

26、from powder to 60mm length between, moisture content between 5-30%, the molding can be processed.</p><p>  Three, roller adjustment function: the use of two-way thrust bearing rotation of the principle of au

27、tomatic. Adjust the pressure angle, the material of crowd and stuffy machine, ensure the stability of the molding material.</p><p>  In four, the operation is simple and practical and convenient: a high degr

28、ee of automation, less labor, only 3 people, the use of artificial feeding or automatic feeding conveyor can be</p><p>  In five, mold long service life: the use of a mold of special steel and special wear-r

29、esistant material, need not change inside three years</p><p>  Instructions for use:</p><p>  One, operational requirements</p><p>  In 1, before turning to fill 25 kg gear oil ( a

30、gas can be used continuously for more than 10 ), the gas after tightening oil hole plug</p><p>  2, check the power lines, prevent string point, leakage, ensure safe use</p><p>  3, carefully ch

31、eck the machine motor, the transmission part is connected with parts of the bolts, screws are solid, with or without loosening, in order to timely fastening</p><p>  In 4, according to the type of preheating

32、 temperature setting ( corn, wheat straw in the 80 to 90 ℃, peanut shell husk in 80 to 100 DEG C )</p><p>  In 5, the boot after the first idle for a minute, check the machine rotation is normal, normal and

33、a small amount of feed, the machine more than the material out of the net, can evenly feeding</p><p>  6, feeding, please be sure to pay attention to raw materials of hard sundries, put an end to stone, iron

34、 into the hopper so as not to damage the machine</p><p>  7, each 8 hours of operation required for gimbal on the oil air refueling once, an oil 2-3 drops. Stop before you a little wet material, so that the

35、next day after starting smoothly discharging</p><p>  In two, matters needing attention</p><p>  1, please read carefully before using this statement of the content, and in accordance with the o

36、perating rules and order operation</p><p>  2, forming machine water requirements: corn straw, wheat straw, straw moisture content in 10%-30% can be molded, to 15%-20% for the best. Peanut shells, rice husk

37、content in 12%-14% between, forming the best effect</p><p>  In 3, hopper no material not idling. As a result of raw material moisture content exceeds 30% boring machine (not discharging ) phenomenon, should

38、 be promptly shut down the machine, cleaning hopper wet material, adding to meet the requirements of the raw material can be normal production</p><p>  The 4, hear the machine has abnormal sound, immediately

39、 stop check, is strictly prohibited to remove hopper boot, to prevent the pressure roller</p><p>  The characteristic:</p><p>  After forming the fuel particles, than the major, small size, resi

40、stant to combustion, is convenient for storage and transportation</p><p>  After forming the volume is the material volume 1/30~40, specific gravity is the raw material for 10~15 times (density of: 0.8-1.4 )

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