TW201503965A - A dewaxing device and a method of dewaxing using dewaxing devices - Google Patents
A dewaxing device and a method of dewaxing using dewaxing devices Download PDFInfo
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本發明涉及一種化學裝置及方法,尤其涉及一種化學脫蠟裝置及使用脫蠟裝置的脫蠟方法。
The present invention relates to a chemical device and method, and more particularly to a chemical dewaxing device and a dewaxing method using the dewaxing device.
按,習知的金屬射出成型技術,以蠟基製程為例,其生產流程如下:首先製作餵料,餵料的主要成份為金屬粉末,還包括主幹黏結劑和填充劑。其中主幹黏結劑為塑料或其混合物,可提高射出件及產品的強度。填充劑為白蠟、棕櫚蠟、微晶蠟、油類等,可增加塑料的流動性;接著將餵料於射出機內射出成型;其次以溶劑清洗或者是加熱去除填充劑蠟基材料,以使射出件內形成開放性孔道;最後高溫燒結,將其他的主幹粘結劑去除。燒結過程中,主幹黏結劑會熱裂解為氣體,由產品內部穿過孔道往外溢散。若無脫蠟製程或是脫蠟不徹底,會導致燒結過程中,裂解為氣體的主幹黏結劑無法順利溢散,使產品嚴重變形、產生氣泡狀外觀不良、爆裂、崩塌等情況。According to the conventional metal injection molding technology, the wax-based process is taken as an example. The production process is as follows: First, the feed is prepared, and the main component of the feed is metal powder, and also includes a main binder and a filler. Among them, the main adhesive is plastic or a mixture thereof, which can improve the strength of the injection member and the product. The filler is white wax, palm wax, microcrystalline wax, oil, etc., which can increase the fluidity of the plastic; then the injection is injected into the injection molding machine; secondly, the solvent wax cleaning or heating removes the filler wax-based material, so that An open channel is formed in the injection member; finally, high temperature sintering is performed to remove other main binder. During the sintering process, the backbone binder is thermally cracked into a gas that escapes from the inside of the product through the tunnel. If there is no dewaxing process or the dewaxing is not thorough, the main adhesive which is cracked into gas cannot be smoothly dissipated during the sintering process, causing serious deformation of the product, resulting in bubble-like appearance, bursting, collapse and the like.
要達成脫蠟的效果,可使用低溫持溫的方式,使蠟基材料慢速溶化或揮發,以使射出件內形成開放性孔道而不影響產品強度,此種方式可在燒結爐中完成,但耗時過長。因此,通常選用化學藥劑的方式進行脫蠟,即利用正己烷、正丁烷、溴丙烷、去漬油等各種可溶出填充劑的化學藥劑去浸泡或者沖洗產品,使蠟基材料溶出,此種方式可快速達到脫蠟效果。其中,因環保意識的加強,化學藥劑的選用已逐步趨向使用可回收、可大氣裂解的溴丙烷來進行脫蠟作業。藉由溴丙烷售價明顯高昂,且極易氧化、裂解,若能有效保護溶劑,延長使用壽命,將可大幅節省生產耗材支出,因此通常會對溴丙烷進行回收作業。在回收的過程中,需加熱至沸騰後再冷凝,對溴丙烷的壽命會有大幅降低的影響。To achieve the effect of dewaxing, the wax-based material can be slowly melted or volatilized by using a low temperature holding method to form an open pore in the injection member without affecting the strength of the product, which can be completed in a sintering furnace. But it takes too long. Therefore, the dewaxing is usually carried out by using a chemical agent, that is, a chemical agent capable of dissolving a filler such as n-hexane, n-butane, bromopropane or degreased oil is used to soak or rinse the product to dissolve the wax-based material. The method can quickly achieve the dewaxing effect. Among them, due to the strengthening of environmental awareness, the selection of chemical agents has gradually turned to the use of recyclable, atmospheric cracking bromopropane for dewaxing operations. The price of bromopropane is obviously high, and it is easily oxidized and cracked. If the solvent can be effectively protected and the service life is prolonged, the production consumables will be greatly saved. Therefore, the recovery of bromopropane is usually carried out. In the process of recovery, it needs to be heated to boiling and then condensed, which will greatly reduce the life of bromopropane.
生產過程中,爲避免回收作業降低溴丙烷的使用壽命,通常儘量拉高溴丙烷的溶蠟量後再進行回收。但是,溴丙烷中溶蠟量越高,代表脫蠟效率越差,脫蠟程度不穩定,甚至有可能出現產品表面積蠟的不良狀況,對於後續操作會有嚴重的不良影響,產品良率也會因此大幅下降,因此會選擇降低溶蠟量標準後進行回收,但是,升降溫的過程對溴丙烷的溶蠟量又有很大影響,45度時的蠟飽和量可達16%,一旦回到室溫,蠟飽和量驟降到3%,假設現有的溴丙烷的溶蠟量已達2.9%,經過一次45度的脫蠟流程後,溶蠟量達3.5%,當降回室溫,因室溫最高溶蠟量位3%,多出的0.5%蠟量就會變成固態的蠟,且因產品表面積極大,大部份會產生在產品表面,導致原本產品開放性孔道的部份變成封閉式孔道,導致後續高溫燒結去除主幹黏結劑時造成產品不良,因此,為避免蠟殘留過多於產品表面,選擇溶劑回收的溶蠟量標準通常設定在2%以下方能穩定生產,如此一來,便發生了回收頻繁的問題,反提高生產成本。
In the production process, in order to avoid the recycling operation to reduce the service life of bromopropane, it is usually possible to increase the amount of dissolved wax of bromopropane and then recycle it. However, the higher the amount of wax dissolved in bromopropane, the worse the dewaxing efficiency, the unstable degree of dewaxing, and even the possibility of defective surface area wax, which will have serious adverse effects on subsequent operations, and the product yield will also be Therefore, it will drop sharply, so it will choose to reduce the amount of dissolved wax and recover it. However, the process of temperature rise and fall has a great influence on the amount of wax dissolved in bromopropane. The wax saturation can reach 16% at 45 degrees. At room temperature, the amount of wax saturation drops to 3%. Assuming that the amount of wax dissolved in the existing bromopropane has reached 2.9%, after a 45-degree dewaxing process, the amount of dissolved wax reaches 3.5%. At room temperature, due to the highest dissolved wax concentration of 3% at room temperature, the extra 0.5% wax will become a solid wax, and due to the large surface area of the product, most of it will be produced on the surface of the product, resulting in the opening of the original product. The part of the pores becomes a closed channel, which leads to the product defect caused by the subsequent high-temperature sintering to remove the main binder. Therefore, in order to avoid excessive wax residue on the surface of the product, the amount of dissolved wax selected for solvent recovery is usually set below 2%. Stable production, this way, recycling frequent problem, there were anti-higher production costs.
本發明之目的係針對上述習知不足而提供一種脫蠟裝置及使用脫蠟裝置的脫蠟方法,可有效改善回收頻繁的問題,降低生產成本。The object of the present invention is to provide a dewaxing device and a dewaxing method using the dewaxing device in view of the above-mentioned deficiencies, which can effectively improve the problem of frequent recycling and reduce the production cost.
為了實現上述目的,本發明提供一種脫蠟裝置,包括一脫蠟系統及一回收系統。脫蠟系統包括一清洗裝置及藉由管路與清洗裝置連通的儲存裝置;該儲存裝置包括分別與清洗裝置連通的一第一溶劑槽及一第二溶劑槽,第一溶劑槽及第二溶劑槽設有加熱裝置;回收系統包括分別與第一溶劑槽及第二溶劑槽連通的第一回收裝置及第二回收裝置;其中,當第一溶劑槽與清洗裝置相通時,第二溶劑槽與清洗裝置封閉,當第二溶劑槽與清洗裝置相通時,第一溶劑槽與清洗裝置封閉。In order to achieve the above object, the present invention provides a dewaxing apparatus comprising a dewaxing system and a recovery system. The dewaxing system comprises a cleaning device and a storage device connected by the pipeline to the cleaning device; the storage device comprises a first solvent tank and a second solvent tank respectively connected to the cleaning device, the first solvent tank and the second solvent The tank is provided with a heating device; the recovery system comprises a first recovery device and a second recovery device respectively communicating with the first solvent tank and the second solvent tank; wherein, when the first solvent tank is in communication with the cleaning device, the second solvent tank is The cleaning device is closed, and when the second solvent tank is in communication with the cleaning device, the first solvent tank is closed with the cleaning device.
本發明提供一種使用脫蠟裝置的脫蠟方法,其過程包括:
1. 將第一溶劑槽內的溴丙烷溶劑溫度控制在45度,第二溶劑槽內的的溴丙烷溶劑溫度控制在40~45度;
2. 將第一溶劑槽與清洗裝置相通,第二溶劑槽與清洗裝置封閉,並將第一溶劑槽內45度的溴丙烷從儲存裝置打入清洗裝置中對產品浸泡及沖洗,溴丙烷於第一溶劑槽及清洗裝置之間進行循環流動對產品進行粗脫蠟;
3. 待粗脫蠟完成後,不進行降溫,直接將45度的溴丙烷全部打回第一溶劑槽中,封閉第一溶劑槽與清洗裝置;
4. 打開第二溶劑槽與清洗裝置,將第二溶劑槽內40~45度的溴丙烷打入清洗裝置中於第二溶劑槽及清洗裝置之間進行循環流動對產品進行細脫蠟,並關閉加熱裝置;
5. 當第一溶劑槽內的溴丙烷的溶蠟量基本達到最高溶蠟量16%時,將第一溶劑槽內的溴丙烷打入第一容置槽內,利用加熱裝置將溶劑煮沸,使溴丙烷受熱變為蒸氣;
6. 使用冷凝裝置使蒸氣冷凝為液態重新回收至第一回收槽內,並打回到第一溶劑槽中重新使用;
7. 使第二溶劑槽內的溴丙烷溶劑溫度控制在45度,使第一溶劑槽內的的溴丙烷溶劑溫度控制在40~45度,第二溶劑槽與清洗裝置相通,第一溶劑槽與清洗裝置封閉,由第二溶劑槽中的溴丙烷對產品粗脫蠟;
8. 封閉第二溶劑槽與清洗裝置,開通第一溶劑槽與清洗裝置對產品進行細脫蠟;
9. 待第二溶劑槽中的溴丙烷溶蠟量達到16%後即可再進行回收。The present invention provides a dewaxing method using a dewaxing device, the process comprising:
1. The temperature of the bromopropane solvent in the first solvent tank is controlled at 45 degrees, and the temperature of the bromopropane solvent in the second solvent tank is controlled at 40 to 45 degrees;
2. The first solvent tank is connected to the cleaning device, the second solvent tank is closed with the cleaning device, and 45 degrees of bromopropane in the first solvent tank is driven into the cleaning device from the storage device to soak and rinse the product, and the bromopropane is The product is subjected to crude dewaxing by circulating flow between the first solvent tank and the cleaning device;
3. After the crude dewaxing is completed, the 45-degree bromopropane is directly returned to the first solvent tank without cooling, and the first solvent tank and the cleaning device are closed;
4. Open the second solvent tank and the cleaning device, and drive 40 to 45 degrees of bromopropane in the second solvent tank into the cleaning device to circulate between the second solvent tank and the cleaning device to finely dewax the product, and Turn off the heating device;
5. When the amount of dissolved wax of bromopropane in the first solvent tank reaches substantially 16% of the maximum dissolved wax amount, the bromopropane in the first solvent tank is driven into the first accommodating tank, and the solvent is boiled by a heating device. Bringing bromopropane to heat by steam;
6. Use a condensing unit to condense the vapor into a liquid state and recycle it to the first recovery tank and return it to the first solvent tank for reuse;
7. The temperature of the bromopropane solvent in the second solvent tank is controlled to 45 degrees, the temperature of the bromopropane solvent in the first solvent tank is controlled to 40 to 45 degrees, and the second solvent tank is connected to the cleaning device, the first solvent tank Closed with the cleaning device, crude dewaxing of the product by bromopropane in the second solvent tank;
8. Closing the second solvent tank and the cleaning device, opening the first solvent tank and the cleaning device to finely dewax the product;
9. The amount of bromopropane dissolved wax in the second solvent tank can be recovered after it reaches 16%.
綜上所述,本發明脫蠟裝置藉由第一溶劑槽及第二溶劑槽之設計,可將溶蠟量提高至16%再進行回收,相比原有的2%的回收設定值,回收頻率降低,維護效果明顯提升,達到了降低生產成本的要求。In summary, the dewaxing device of the present invention can increase the amount of dissolved wax to 16% by the design of the first solvent tank and the second solvent tank, and recovers compared with the original 2% recovery set value. The frequency is reduced, the maintenance effect is obviously improved, and the requirement for reducing the production cost is achieved.
第一圖係本發明脫蠟裝置一種實施例之示意圖。
The first figure is a schematic representation of one embodiment of the dewaxing apparatus of the present invention.
為詳細說明本發明之技術內容、構造特徵、所達成目的及功效,以下茲舉例並配合圖式詳予說明。In order to explain the technical content, structural features, objectives and effects of the present invention in detail, the following detailed description is given by way of example.
請參閱第一圖,本發明脫蠟裝置100,係利用溶劑清洗金屬射出成型的產品以去除產品中的蠟,包括一脫蠟系統及一回收系統。本實施例中,該溶劑為溴丙烷。Referring to the first figure, the dewaxing device 100 of the present invention uses a solvent to clean a metal injection molded product to remove wax in the product, including a dewaxing system and a recovery system. In this embodiment, the solvent is bromopropane.
所述脫蠟系統包括一清洗裝置11及藉由管路與清洗裝置11連通的儲存裝置12;儲存裝置12用來儲存溴丙烷溶劑,清洗裝置11用於產品浸泡及用溴丙烷對產品進行沖洗。該儲存裝置12包括分別與清洗裝置11連通的一第一溶劑槽121及一第二溶劑槽122,第一溶劑槽121及第二溶劑槽122設有加熱裝置123,加熱裝置123可加熱溴丙烷提高脫蠟效率。清洗裝置11與儲存裝置12的第一溶劑槽121及第二溶劑槽122之間設有冷凝裝置124,因溴丙烷的揮發性高,冷凝裝置124可將脫蠟過程中揮發的溴丙烷蒸汽冷凝,重新變回溴丙烷溶液,流入儲存裝置12的第一溶劑槽121及第二溶劑槽122中。The dewaxing system comprises a cleaning device 11 and a storage device 12 connected by a pipeline to the cleaning device 11; the storage device 12 is used for storing a bromopropane solvent, and the cleaning device 11 is used for product soaking and rinsing the product with bromopropane. . The storage device 12 includes a first solvent tank 121 and a second solvent tank 122 respectively connected to the cleaning device 11. The first solvent tank 121 and the second solvent tank 122 are provided with a heating device 123, and the heating device 123 can heat the bromopropane. Improve the efficiency of dewaxing. A condensing device 124 is disposed between the cleaning device 11 and the first solvent tank 121 and the second solvent tank 122 of the storage device 12. The condensing device 124 can condense the bromopropane vapor volatilized during the dewaxing process because of the high volatility of the bromopropane. The bromopropane solution is returned to the first solvent tank 121 and the second solvent tank 122 of the storage device 12.
所述回收系統包括分別與第一溶劑槽121及第二溶劑槽122連通的第一回收裝置21及第二回收裝置22。第一回收裝置21包括一與第一溶劑槽121連通的第一容置槽211及一與第一容置槽211連通的第一回收槽212。第二回收裝置22包括一與第二溶劑槽122連通的第二容置槽221及一與第二容置槽221連通的第二回收槽222。第一容置槽211及第二容置槽221內皆設有加熱裝置23及冷凝裝置24。第一容置槽211及第二容置槽221分別用於容置第一溶劑槽121及第二溶劑槽122內清洗產品後含蠟的溴丙烷,第一回收槽212及第二回收槽222分別用於容置除蠟後的溴丙烷的澄清溶液。將產品置於清洗裝置11中浸泡,當第二溶劑槽122與清洗裝置11相通時,第一溶劑槽121與清洗裝置封閉。The recovery system includes a first recovery device 21 and a second recovery device 22 that are in communication with the first solvent tank 121 and the second solvent tank 122, respectively. The first recovery device 21 includes a first accommodating groove 211 communicating with the first solvent tank 121 and a first recovery tank 212 communicating with the first accommodating groove 211. The second recovery device 22 includes a second accommodating groove 221 communicating with the second solvent tank 122 and a second recovery tank 222 communicating with the second accommodating groove 221 . The heating device 23 and the condensing device 24 are disposed in the first accommodating groove 211 and the second accommodating groove 221 . The first accommodating tank 211 and the second accommodating tank 221 are respectively used for accommodating the wax-containing bromopropane in the first solvent tank 121 and the second solvent tank 122, and the first recovery tank 212 and the second recovery tank 222. Used to house a clear solution of bromopropane after wax removal. The product is placed in the cleaning device 11 to be immersed. When the second solvent tank 122 is in communication with the cleaning device 11, the first solvent tank 121 is closed with the cleaning device.
請參閱第一圖,本發明脫蠟裝置100的脫蠟過程如下:Referring to the first figure, the dewaxing process of the dewaxing device 100 of the present invention is as follows:
首先,溴丙烷容置於儲存裝置12中,藉由加熱裝置123加熱溴丙烷,使第一溶劑槽121內的溴丙烷溶劑溫度控制在45度,使第二溶劑槽122內的的溴丙烷溶劑溫度控制在40~45度,第一溶劑槽121與清洗裝置11相通,第二溶劑槽122與清洗裝置11封閉。First, the bromopropane is placed in the storage device 12, and the bromopropane is heated by the heating device 123 to control the temperature of the bromopropane solvent in the first solvent tank 121 to 45 degrees to make the bromopropane solvent in the second solvent tank 122. The temperature is controlled at 40 to 45 degrees, the first solvent tank 121 is in communication with the cleaning device 11, and the second solvent tank 122 is closed to the cleaning device 11.
接著,將第一溶劑槽121內45度的溴丙烷從儲存裝置12打入清洗裝置11中對產品浸泡及沖洗,即進行粗脫蠟。粗脫蠟過程中,溴丙烷於第一溶劑槽121及清洗裝置11之間進行循環流動以降低產品附近的含蠟濃度,加熱裝置123持續加熱可保持溴丙烷的溫度在45度以最高溶蠟量16%最大限度的進行粗脫蠟。待粗脫蠟完成後,不進行降溫,直接將45度的溴丙烷全部打回第一溶劑槽121中,封閉第一溶劑槽121與清洗裝置11,打開第二溶劑槽122與清洗裝置11;然後,將第二溶劑槽122內40~45度的溴丙烷打入清洗裝置11中進行細脫蠟,並關閉加熱裝置123,細脫蠟過程中,溴丙烷於第二溶劑槽122及清洗裝置11之間進行循環流動,第二溶劑槽122內溴丙烷的溶蠟量控制在2%,在將清洗裝置11中的溴丙烷由第一溶劑槽121中45度的高溶蠟量的溴丙烷替換成第二溶劑槽122中40~45度的較低溶蠟量的溴丙烷時,由於產品未從清洗裝置11中取出,且所用的溴丙烷由45度替換為40~45度,沒有熱衝擊問題產生,確保產品良率,待第二溶劑槽122內溴丙烷逐漸降溫至室溫後,產品完成脫蠟程序。即可將完成脫蠟的產品取出,更換下一批待脫蠟的產品進行脫蠟,直至檢測到第一溶劑槽121內的溴丙烷的溶蠟量基本達到最高溶蠟量16%,開始回收作業。Next, 45-degree bromopropane in the first solvent tank 121 is driven from the storage device 12 into the cleaning device 11 to soak and rinse the product, that is, to perform crude dewaxing. In the crude dewaxing process, bromopropane is circulated between the first solvent tank 121 and the cleaning device 11 to reduce the wax concentration in the vicinity of the product, and the heating device 123 continues to heat to maintain the temperature of the bromopropane at 45 degrees to dissolve the wax. The amount of 16% is maximized for crude dewaxing. After the completion of the crude dewaxing, without cooling, the 45-degree bromopropane is directly returned to the first solvent tank 121, the first solvent tank 121 and the cleaning device 11 are closed, and the second solvent tank 122 and the cleaning device 11 are opened; Then, 40 to 45 degrees of bromopropane in the second solvent tank 122 is driven into the cleaning device 11 to perform fine dewaxing, and the heating device 123 is turned off. During the fine dewaxing process, bromopropane is used in the second solvent tank 122 and the cleaning device. Circulating flow between 11 and the amount of dissolved wax of bromopropane in the second solvent tank 122 is controlled at 2%, and the amount of bropropane in the cleaning apparatus 11 is 45 degrees by the high solvent amount of brompropane in the first solvent tank 121. When replacing the bropropane having a lower dissolved amount of 40 to 45 degrees in the second solvent tank 122, since the product is not taken out from the cleaning device 11, and the bromopropane used is replaced by 45 degrees to 40 to 45 degrees, there is no heat. The impact problem is generated to ensure the product yield. After the bromopropane in the second solvent tank 122 is gradually cooled to room temperature, the product completes the dewaxing process. The dewaxed product can be taken out, and the next batch of the product to be dewaxed can be replaced for dewaxing until the amount of dissolved wax of the bromopropane in the first solvent tank 121 is substantially reached to 16% of the highest dissolved wax amount, and the recovery is started. operation.
進行回收作業時,將第一溶劑槽121內達到最高溶蠟量16%的溴丙烷打入第一容置槽211內,利用加熱裝置23將溶劑煮沸,使溴丙烷受熱變為蒸氣,再使用冷凝裝置24使蒸氣冷凝為液態重新回收至第一回收槽212內,並打回到第一溶劑槽121中重新使用。第一容置槽211內含蠟的溴丙烷溶液經蒸煮後,留下高濃度且無法揮發的液態廢蠟,然後,將之排除,完成回收作業。When performing the recovery operation, bromopropane in the first solvent tank 121 up to 16% of the maximum amount of dissolved wax is introduced into the first accommodating tank 211, and the solvent is boiled by the heating device 23 to convert the bromopropane into steam and then used. The condensing device 24 condenses the vapor into a liquid state and recovers it into the first recovery tank 212, and returns it to the first solvent tank 121 for reuse. After the wax-containing bromopropane solution in the first accommodating tank 211 is cooked, a high-concentration and non-volatile liquid waste wax is left, and then it is removed to complete the recovery operation.
然後,第一溶劑槽121內的溴丙烷回收後變成澄清溶液,相對於第二溶劑槽122內含蠟的溴丙烷溶液來說,可轉變為細脫蠟用,而第二溶劑槽122內相對含蠟量高的溴丙烷則轉變為粗脫蠟用。即藉由加熱裝置123加熱溴丙烷,使第二溶劑槽122內的溴丙烷溶劑溫度控制在45度,使第一溶劑槽121內的的溴丙烷溶劑溫度控制在40~45度,第二溶劑槽122與清洗裝置11相通,第一溶劑槽121與清洗裝置11封閉。由第二溶劑槽122中的溴丙烷對產品粗脫蠟,然後再封閉第二溶劑槽122與清洗裝置11,開通第一溶劑槽121與清洗裝置11對產品進行細脫蠟,待第二溶劑槽122中的溴丙烷溶蠟量達到16%後再進行回收,如此反復。因此,本發明脫蠟裝置100可將溴丙烷溶蠟量提高至16%再進行回收,相比原有的2%的回收設定值,回收頻率降低,維護效果明顯提升,達到了降低生產成本的要求。Then, the bromopropane in the first solvent tank 121 is recovered and becomes a clear solution, and can be converted into fine dewaxing with respect to the wax-containing bromopropane solution in the second solvent tank 122, and the second solvent tank 122 is relatively Bromopropane with a high wax content is converted to crude dewaxing. That is, the bromopropane is heated by the heating device 123, the temperature of the bromopropane solvent in the second solvent tank 122 is controlled to 45 degrees, and the temperature of the bromopropane solvent in the first solvent tank 121 is controlled to 40 to 45 degrees, and the second solvent is used. The tank 122 communicates with the cleaning device 11, and the first solvent tank 121 is closed to the cleaning device 11. The product is crudely dewaxed by the bromopropane in the second solvent tank 122, and then the second solvent tank 122 and the cleaning device 11 are closed, and the first solvent tank 121 and the cleaning device 11 are opened to finely dewax the product to the second solvent. The amount of bromopropane dissolved wax in the tank 122 reached 16%, and then recovered, and thus repeated. Therefore, the dewaxing device 100 of the present invention can increase the amount of brominated propane dissolved wax to 16% and recover it. Compared with the original 2% recovery set value, the recovery frequency is reduced, the maintenance effect is obviously improved, and the production cost is lowered. Claim.
綜上所述,本發明脫蠟裝置100藉由第一溶劑槽121及第二溶劑槽122之設計,在對產品進行粗脫蠟后再進行細脫蠟,產品脫蠟徹底,且將溴丙烷溶蠟量提高至16%再進行回收,相比原有的2%的回收設定值,回收頻率降低,維護效果明顯提升,達到了降低生產成本的要求。In summary, the dewaxing device 100 of the present invention performs fine dewaxing after crude dewaxing of the product by the design of the first solvent tank 121 and the second solvent tank 122, and the product is completely dewaxed, and the bromopropane is used. The amount of dissolved wax is increased to 16% and then recovered. Compared with the original 2% recovery set value, the recycling frequency is reduced, the maintenance effect is obviously improved, and the production cost is reduced.
100‧‧‧脫蠟裝置
11‧‧‧清洗裝置
12‧‧‧儲存裝置
121‧‧‧第一溶劑槽
122‧‧‧第二溶劑槽
123‧‧‧加熱裝置
124‧‧‧冷凝裝置
21‧‧‧第一回收裝置
211‧‧‧第一容置槽
212‧‧‧第一回收槽
22‧‧‧第二回收裝置
221‧‧‧第二容置槽
222‧‧‧第二回收槽
23‧‧‧加熱裝置
24‧‧‧冷凝裝置100‧‧‧Dewaxing device 11‧‧‧Washing device 12‧‧‧Storage device 121‧‧‧First solvent tank 122‧‧‧Second solvent tank 123‧‧‧heating device 124‧‧ condensing device 21‧ ‧First recovery unit 211‧‧‧First accommodating tank 212‧‧‧First collection tank 22‧‧‧Second recovery unit 221‧‧‧Second accommodating tank 222‧‧‧Second collection tank 23‧‧ ‧Heating device 24‧‧‧Condensing device
100‧‧‧脫蠟裝置 100‧‧‧Dewaxing unit
11‧‧‧清洗裝置 11‧‧‧cleaning device
12‧‧‧儲存裝置 12‧‧‧Storage device
121‧‧‧第一溶劑槽 121‧‧‧First solvent tank
122‧‧‧第二溶劑槽 122‧‧‧Second solvent tank
123‧‧‧加熱裝置 123‧‧‧heating device
124‧‧‧冷凝裝置 124‧‧‧Condensing device
21‧‧‧第一回收裝置 21‧‧‧First recovery unit
211‧‧‧第一容置槽 211‧‧‧First accommodating slot
212‧‧‧第一回收槽 212‧‧‧First recycling tank
22‧‧‧第二回收裝置 22‧‧‧Second recovery unit
221‧‧‧第二容置槽 221‧‧‧Second accommodating slot
222‧‧‧第二回收槽 222‧‧‧Second recycling tank
23‧‧‧加熱裝置 23‧‧‧ heating device
24‧‧‧冷凝裝置 24‧‧‧Condensing device
Claims (4)
一脫蠟系統,包括一清洗裝置及藉由管路與清洗裝置連通的儲存裝置;該儲存裝置包括分別與清洗裝置連通的一第一溶劑槽及一第二溶劑槽,第一溶劑槽及第二溶劑槽內設有加熱裝置;及
一回收系統,包括分別與第一溶劑槽及第二溶劑槽連通的第一回收裝置及第二回收裝置;
其中,當第一溶劑槽與清洗裝置相通時,第二溶劑槽與清洗裝置封閉,當第二溶劑槽與清洗裝置相通時,第一溶劑槽與清洗裝置封閉。A dewaxing device comprising:
A dewaxing system includes a cleaning device and a storage device connected by a pipeline to the cleaning device; the storage device includes a first solvent tank and a second solvent tank respectively connected to the cleaning device, the first solvent tank and the first a heating device is disposed in the two solvent tanks; and a recovery system includes a first recovery device and a second recovery device respectively communicating with the first solvent tank and the second solvent tank;
Wherein, when the first solvent tank is in communication with the cleaning device, the second solvent tank is closed with the cleaning device, and when the second solvent tank is in communication with the cleaning device, the first solvent tank is closed with the cleaning device.
第一步驟,將第一溶劑槽內的溴丙烷溶劑溫度控制在45度,使第二溶劑槽內的的溴丙烷溶劑溫度控制在40~45度;
第二步驟,將第一溶劑槽與清洗裝置相通,第二溶劑槽與清洗裝置封閉,並將第一溶劑槽內45度的溴丙烷從儲存裝置打入清洗裝置中對產品浸泡及沖洗,溴丙烷於第一溶劑槽及清洗裝置之間進行循環流動對產品進行粗脫蠟;
第三步驟,待粗脫蠟完成後,不進行降溫,直接將45度的溴丙烷全部打回第一溶劑槽中,封閉第一溶劑槽與清洗裝置;
第四步驟,打開第二溶劑槽與清洗裝置,將第二溶劑槽內40~45度的溴丙烷打入清洗裝置中於第二溶劑槽及清洗裝置之間進行循環流動對產品進行細脫蠟,並關閉加熱裝置;
第五步驟,當第一溶劑槽內的溴丙烷的溶蠟量基本達到最高溶蠟量16%時,將第一溶劑槽內的溴丙烷打入第一容置槽內,利用加熱裝置將溶劑煮沸,使溴丙烷受熱變為蒸氣;
第六步驟,使用冷凝裝置使蒸氣冷凝為液態重新回收至第一回收槽內,並打回到第一溶劑槽中重新使用;
第七步驟,使第二溶劑槽內的溴丙烷溶劑溫度控制在45度,使第一溶劑槽內的的溴丙烷溶劑溫度控制在40~45度,第二溶劑槽與清洗裝置相通,第一溶劑槽與清洗裝置封閉,由第二溶劑槽中的溴丙烷對產品粗脫蠟;
第八步驟,封閉第二溶劑槽與清洗裝置,開通第一溶劑槽與清洗裝置對產品進行細脫蠟;
第九步驟,待第二溶劑槽中的溴丙烷溶蠟量達到16%後即可再進行回收。A dewaxing method using a dewaxing device, the process comprising:
In the first step, the temperature of the bromopropane solvent in the first solvent tank is controlled at 45 degrees, and the temperature of the bromopropane solvent in the second solvent tank is controlled at 40 to 45 degrees;
In the second step, the first solvent tank is connected to the cleaning device, the second solvent tank is closed with the cleaning device, and 45 degrees of bromopropane in the first solvent tank is driven into the cleaning device from the storage device to soak and rinse the product, and bromine The product is subjected to crude dewaxing by circulating a flow of propane between the first solvent tank and the cleaning device;
In the third step, after the crude dewaxing is completed, the 45-degree bromopropane is directly returned to the first solvent tank without cooling, and the first solvent tank and the cleaning device are closed;
In the fourth step, the second solvent tank and the cleaning device are opened, and 40 to 45 degrees of bromopropane in the second solvent tank is driven into the cleaning device to circulate between the second solvent tank and the cleaning device to finely dewax the product. And turn off the heating device;
In the fifth step, when the amount of dissolved wax of bromopropane in the first solvent tank reaches substantially 16% of the maximum amount of dissolved wax, the bromopropane in the first solvent tank is driven into the first accommodating tank, and the solvent is used by the heating device. Boiling to convert bromopropane to steam;
In the sixth step, the condensing device is used to condense the vapor into a liquid state and recover it into the first recovery tank, and return it to the first solvent tank for reuse;
In the seventh step, the temperature of the bromopropane solvent in the second solvent tank is controlled at 45 degrees, the temperature of the bromopropane solvent in the first solvent tank is controlled to be 40 to 45 degrees, and the second solvent tank is connected to the cleaning device, first The solvent tank is closed with the cleaning device, and the product is crudely dewaxed by the bromopropane in the second solvent tank;
In the eighth step, the second solvent tank and the cleaning device are closed, and the first solvent tank and the cleaning device are opened to perform fine dewaxing on the product;
In the ninth step, the amount of bromopropane dissolved wax in the second solvent tank reaches 16% and can be recovered.
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