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設(shè)備簡(jiǎn)介Equipment Introduction

 滾筒干燥機(jī)（又稱轉(zhuǎn)鼓干燥器、回轉(zhuǎn)干燥機(jī)等）是一種接觸式內(nèi)加熱傳導(dǎo)型的干燥機(jī)械。在干燥過(guò)程中，熱量由滾筒的內(nèi)壁傳到其外壁，穿過(guò)附在滾筒外壁面上被干燥的食品物料，把物料上的水分蒸發(fā)，是一種連續(xù)式干燥的生產(chǎn)機(jī)械。滾筒干燥機(jī)在干燥物料時(shí)干燥時(shí)間短，一般約為7-30s，干燥的產(chǎn)品沒(méi)有處于高溫的危險(xiǎn)，適用于熱敏性物料的干燥，不管干燥的物料漿液粘度高或低均能對(duì)其進(jìn)行干燥；熱效率高。 

A drum dryer (also known as a rotary drum dryer, rotary dryer, etc.) is a contact type internal heating conduction type drying machinery. During the drying process, heat is transferred from the inner wall of the drum to its outer wall, passing through the dried food materials attached to the outer wall of the drum, evaporating the moisture on the materials. It is a continuous drying production machinery. The drum dryer has a short drying time when drying materials, usually about 7-30 seconds. The dried product is not at risk of high temperature and is suitable for drying thermosensitive materials. Regardless of the high or low viscosity of the dried material slurry, it can dry it; High thermal efficiency.

工作原理operational principle

滾筒干燥機(jī)的轉(zhuǎn)筒是略帶傾斜并能回轉(zhuǎn)的圓筒體，濕物料從一端上部進(jìn)入，干物料從另一端下部收集。熱風(fēng)從進(jìn)料端或出料端進(jìn)入，從另一端上部排出。筒內(nèi)裝有順向抄板，使物料在筒體回轉(zhuǎn)過(guò)程中不斷抄起又灑下，使其充分與熱氣流接觸，以提高干燥效率并使物料向前移動(dòng)。干燥物料熱源一般為熱空氣、高溫?zé)煹罋狻⑺魵獾取?/span>

滾筒干燥機(jī)的工作過(guò)程為：需要干燥處理的料液由高位槽流人滾筒干燥器的受料槽內(nèi)，由布膜裝置使物料薄薄地（膜狀）附在滾筒表面，滾筒內(nèi)通有供熱介質(zhì)，食品工業(yè)多采用蒸汽，壓力一般在0.2～6MPa，溫度在 120～150℃之間，物料在滾筒轉(zhuǎn)動(dòng)中由筒壁傳熱使其濕分汽化，滾筒在一個(gè)轉(zhuǎn)動(dòng)周期中完成布膜、汽化、脫水等過(guò)程，干燥后的物料由刮刀刮下，經(jīng)螺旋輸送至成品貯存槽，最后進(jìn)行粉碎或直接包裝。在傳熱中蒸發(fā)出的水分，視其性質(zhì)可通過(guò)密閉罩，引入到相應(yīng)的處理裝置內(nèi)進(jìn)行捕集粉塵或排放。

The rotary drum of a drum dryer is a slightly inclined and rotatable cylinder, where wet materials enter from the upper part of one end and dry materials are collected from the lower part of the other end. Hot air enters from the feed or discharge end and is discharged from the upper part of the other end. The cylinder is equipped with a forward cutting plate, which continuously picks up and sprinkles materials during the rotation process of the cylinder, making them fully in contact with the hot air flow to improve drying efficiency and move the materials forward. The heat source for drying materials is generally hot air, high-temperature flue gas, water vapor, etc.

The working process of a drum dryer is as follows: the material liquid that needs to be dried flows from the high-level groove into the receiving groove of the drum dryer. The material is thinly (in the form of a film) attached to the surface of the drum by a film distribution device, and there is a heating medium inside the drum. Steam is commonly used in the food industry, with a pressure of 0.2-6MPa and a temperature between 120-150 ℃. The material undergoes heat transfer from the drum wall during the rotation of the drum, causing its moisture to vaporize, The drum completes the processes of film distribution, vaporization, dehydration, etc. in one rotation cycle. The dried material is scraped off by a scraper, spiral transported to the finished product storage tank, and finally crushed or directly packaged. The water evaporated during heat transfer can be introduced into the corresponding treatment device through a closed cover to capture dust or discharge according to its properties.

設(shè)備特點(diǎn)Equipment characteristics

操作連續(xù)，能夠得到均勻的干燥產(chǎn)品；滾筒干燥機(jī)在干燥物料時(shí)干燥時(shí)間短，一般約為7-30s，干燥的產(chǎn)品沒(méi)有處于高溫的危險(xiǎn)，適用于熱敏性物料的干燥，但壁面也有可能產(chǎn)生過(guò)熱；不管干燥的物料漿液粘度高或低均能對(duì)其進(jìn)行干燥；熱效率高；因干燥機(jī)內(nèi)不會(huì)剩殘留產(chǎn)品，少量物料也可以干燥；滾筒干燥機(jī)的操作參數(shù)調(diào)整范圍廣，并易于調(diào)整；滾筒干燥機(jī)內(nèi)易于清理，改變用途容易；廢氣不帶走物料，因此不需要用除塵設(shè)備等干燥機(jī)配件。滾筒干燥機(jī)較廣泛的應(yīng)用于漿狀物料的干燥，像干燥酵母、抗菌素、乳糖、淀粉漿、亞硝酸鈉、染料、碳酸鈣及蒸餾廢液等均能進(jìn)行干燥處理。

Continuous operation, able to obtain uniform dry products; The drum dryer has a short drying time when drying materials, usually about 7-30 seconds. The dried product is not at risk of high temperature and is suitable for drying thermosensitive materials, but the wall may also overheat; Regardless of whether the viscosity of the dried material slurry is high or low, it can be dried; High thermal efficiency; Because there is no residual product left in the dryer, a small amount of material can also be dried; The operating parameters of the drum dryer have a wide range of adjustment and are easy to adjust; The drum dryer is easy to clean inside and can be easily changed for different purposes; Waste gas does not take away materials, so there is no need to use dust removal equipment or other drying machine accessories. Drum dryers are widely used in the drying of pulp materials, such as drying yeast, antibiotics, lactose, starch slurry, sodium nitrite, dyes, calcium carbonate, and distilled waste liquid, which can all be dried.

應(yīng)用范圍Application scope

適用于化工、礦工、冶金等行業(yè)，如礦石、礦渣、煤、金屬粉末、粘土、硅藻土、高嶺土。

農(nóng)業(yè)、飼料、肥料行業(yè)，如秸稈、牧草、樹葉、魚粉、玉米醬、淀粉渣、酒糟、藥渣、果渣、醬油渣、甘蔗渣、草炭、有機(jī)復(fù)合肥、污泥、水產(chǎn)品廢料、食品廠廢料、屠宰廠廢料、有機(jī)肥料、無(wú)機(jī)肥料、磷肥硫銨。

對(duì)有特殊要求的粉狀、顆粒狀物料干燥機(jī)。如各種結(jié)晶體、輕質(zhì)碳酸鈣、活性白土、磁粉、石墨、無(wú)機(jī)泥漿、陶土、石灰漿、礦石泥漿、磷礦渣、鋁廠赤泥。

要求低溫干燥，且需要大批量連續(xù)干燥的物料。 載熱體的選擇載熱體及其最高溫度的決定在于被處理固體物料的性質(zhì)以及其是否允許被污染等因素。

若被處理的固體物料不怕高溫，且非最后產(chǎn)品，可以允許在處理過(guò)程中稍被污染，可采用熱風(fēng)爐或煙道氣作為載熱體，則能得到較高的體積蒸發(fā)率和熱效率。例如，對(duì)于進(jìn)口含水量較高的物料干燥，采用氣體進(jìn)口溫度為300度時(shí)，干燥器的體積蒸發(fā)率為5kg/m3/h熱效率為30%—50%；若氣體進(jìn)口溫度為500度，則體積蒸發(fā)率為35kg/m3/h；熱效率為50%—70%。所以對(duì)于處理礦石、砂爍、煤、過(guò)磷硫酸鈣等物料的轉(zhuǎn)筒干燥器斗帶有直接產(chǎn)生煙道氣的燃燒爐，氣燃料可以采用煤、油、天然氣、液化氣等。

如處理的物料不允許被污染，需要的溫度高，則可用我公司新型產(chǎn)品煤氣發(fā)生爐作載熱體，本產(chǎn)品節(jié)能環(huán)保、熱效率高。如當(dāng)?shù)氐沫h(huán)保要求很高，又想節(jié)能、衛(wèi)生采用煤氣發(fā)生爐將是最佳選擇。煤氣發(fā)生爐在節(jié)能方面比燃燒爐至少節(jié)能在20%以上,在人工上也大大節(jié)省不少，一般煤氣發(fā)生爐有一名工作即可操作，且不需要不停的加煤，另外煤氣發(fā)生爐可以隨停隨用，長(zhǎng)達(dá)10天不工作，下次還可以繼續(xù)使用。

也有用間接加熱的方式，即熱量由金屬壁傳給被干燥物料，如外加熱式的轉(zhuǎn)筒式干燥器。

1、從原料形態(tài)上，離心脫水濾餅、壓濾濾餅；可自由流動(dòng)的粉狀、顆粒、片狀、纖維等物料的干燥。

2、從物料的應(yīng)用范圍上，廣泛應(yīng)用于礦產(chǎn)品、建材、化工產(chǎn)品、復(fù)合肥、有機(jī)粉體、飼料、酒槽、淀粉渣、玉米渣、豆渣等的干燥。

3、從回轉(zhuǎn)滾筒干燥機(jī)的機(jī)構(gòu)上，可分為直接、間接加熱、通氣管加熱、蒸汽管間接加熱、復(fù)式加熱等多種結(jié)構(gòu)形式。

4、從干燥溫度上，可從60℃-600℃范圍內(nèi)選擇，原則上溫度愈高，蒸發(fā)強(qiáng)度愈高。因此設(shè)備體積小、投資省、單位能耗低

Suitable for industries such as chemical, mining, and metallurgy, such as ore, slag, coal, metal powder, clay, diatomaceous earth, and kaolin.

Agriculture, feed, and fertilizer industries, such as straw, grass, leaves, fish meal, corn sauce, starch residue, distiller's grains, medicinal residue, fruit residue, soy sauce residue, sugarcane residue, peat, organic compound fertilizer, sludge, aquatic product waste, food factory waste, slaughterhouse waste, organic fertilizer, inorganic fertilizer, and ammonium phosphate fertilizer.

For powder and granular material dryers with special requirements. Such as various crystals, lightweight calcium carbonate, activated clay, magnetic powder, graphite, inorganic mud, clay, lime slurry, ore mud, phosphorus slag, aluminum plant red mud.

Materials that require low-temperature drying and require continuous drying in large quantities. The selection of heat carrier and its maximum temperature depend on factors such as the properties of the treated solid material and whether it is allowed to be contaminated.

If the solid material being processed is not afraid of high temperature and is not the final product, it can be allowed to be slightly contaminated during the processing. A hot air furnace or flue gas can be used as a heat carrier to achieve higher volume evaporation rate and thermal efficiency. For example, for drying materials with high imported moisture content, when the gas inlet temperature is 300 degrees, the volume evaporation rate of the dryer is 5kg/m3/h, and the thermal efficiency is 30% -50%; If the gas inlet temperature is 500 degrees, the volumetric evaporation rate is 35kg/m3/h; The thermal efficiency is between 50% and 70%. So for rotary drum dryers with combustion furnaces that directly produce flue gas for processing materials such as ore, sand, coal, and calcium persulfate, coal, oil, natural gas, liquefied gas, etc. can be used as fuel.

If the processed materials are not allowed to be contaminated and require a high temperature, our company's new product, the gas generator, can be used as a heat carrier. This product is energy-saving, environmentally friendly, and has high thermal efficiency. If the local environmental protection requirements are high and you want to save energy and maintain hygiene, using a gas generator will be the best choice. A gas generator can save at least 20% more energy than a combustion furnace in terms of energy efficiency, and it also greatly saves a lot of labor. Generally, a gas generator can be operated by one worker without the need for continuous coal addition. In addition, a gas generator can be stopped and used at any time, without working for up to 10 days, and can continue to be used next time.

There is also an indirect heating method, which transfers heat from the metal wall to the dried material, such as an externally heated rotary dryer.

1. From the perspective of raw material morphology, centrifugal dehydration filter cake and pressure filter cake; Drying of freely flowing materials such as powders, particles, flakes, fibers, etc.

2. From the application scope of materials, it is widely used in the drying of mineral products, building materials, chemical products, compound fertilizers, organic powders, feed, wine tanks, starch residue, corn residue, soybean residue, etc.

3. From the mechanism of the rotary drum dryer, it can be divided into various structural forms such as direct and indirect heating, ventilation pipe heating, steam pipe indirect heating, and compound heating.

4. In terms of drying temperature, it can be selected from the range of 60 ℃ -600 ℃. In principle, the higher the temperature, the higher the evaporation intensity. Therefore, the equipment has a small volume, low investment, and low unit energy consumption

技術(shù)參數(shù)表Technical parameter table