TW201408388A - Mullite recovery method and mullite recovery system - Google Patents
Mullite recovery method and mullite recovery system Download PDFInfo
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本發明係有關一種莫來石回收技術，特別是指一種可於含有莫來石顆粒之廢殼模當中回收莫來石顆粒之方法，以及與其相關之回收系統。 The present invention relates to a mullite recycling technique, and more particularly to a method for recovering mullite particles in a waste shell mold containing mullite particles, and a recovery system therewith.
目前，普遍使用之精密鑄造方式大致有金屬鑄造法(Die Casting)及脫蠟鑄造法(Investment Casting)兩種。原則上，金屬鑄造法之鑄模係由金屬材料製作而成，而具有容易控制鑄件外觀精度以及鑄模可供重覆使用之特性，但礙於鑄件原料之熔點不能高於鑄模熔點之限制，其可供應用之鑄件原料亦相對受到較多限制。 At present, the commonly used precision casting methods are generally Die Casting and Investment Casting. In principle, the casting mold of the metal casting method is made of a metal material, and has the characteristics of easy control of the appearance accuracy of the casting and the repeated use of the casting mold, but the melting point of the casting material cannot be higher than the melting point of the casting mold, The casting materials used for supply are also relatively limited.
至於，脫蠟鑄造法則較類似傳統砂模鑄造法，同樣係可耐高溫的泥、砂做為鑄模材料，因此可廣泛應用於原料熔點的鑄件；脫蠟鑄造不同於傳統砂模鑄造之處在於，脫蠟鑄造係以熔點低、加工容易的蠟做為模型，將蠟塊預塑成於與鑄件外型相符的蠟模之後，再以噴塗或浸泡殼模漿液的方式，於蠟模外部包覆一殼模，待殼模確實乾燥硬化後，以加熱方式讓殼模內的蠟模熔出，使於殼模內空出與鑄件外型相符的模穴，再將熔融的鑄件原料填入模穴中，待鑄件原料冷卻定型後，即可獲致與蠟模形狀相同的鑄件，並採用直接將殼模震碎或敲碎的方式，將原本被殼模所包覆的鑄件取出。 As for the dewaxing casting method, it is similar to the traditional sand casting method. It is also a high temperature resistant mud and sand as a molding material, so it can be widely used in the casting of raw material melting point; dewaxing casting is different from traditional sand casting. Dewaxing casting is based on a wax with a low melting point and easy processing. The wax block is pre-molded into a wax pattern conforming to the shape of the casting, and then coated on the outside of the wax mold by spraying or soaking the shell mold slurry. Covering a shell mold, after the shell mold is dried and hardened, the wax mold in the shell mold is melted by heating, so that the mold cavity corresponding to the shape of the casting is vacated in the shell mold, and the molten casting material is filled in. In the cavity, after the material to be cast is cooled and shaped, the casting having the same shape as the wax mold can be obtained, and the casting originally covered by the shell mold can be taken out by directly breaking or breaking the shell mold.
上述脫蠟鑄造法之殼模材料多係由莫來石與矽酸膠混合硬化而成，主要利用莫來石之耐火特性，讓殼模得以達到較 高的耐熱度，以及讓鑄造成品獲致較佳的表面精度；莫來石雖然挾其極佳的耐火特性而可供廣泛應用於各種領域，但莫來石的性能與其純度密切相關，純度越高，產品的性能也越好。採用礦物原料生產之莫來石，由於大多數礦物原料中鐵、鈦、鈣、鎂等有害元素含量高，產品品質不能保證，必須再透過適當燒結法和電熔處理，合成高純度之高莫來石，相對增加莫來石之製造成本。 The shell mold materials of the above dewaxing casting method are mostly made of a mixture of mullite and bismuth rubber, which mainly utilizes the fire resistance characteristics of mullite, so that the shell mold can be compared. High heat resistance and good surface finish for cast products; mullite is widely used in various fields despite its excellent fire resistance. However, the properties of mullite are closely related to its purity. The higher the purity, the higher the purity. The performance of the product is also better. The mullite produced from mineral raw materials, because most of the mineral raw materials contain high levels of harmful elements such as iron, titanium, calcium and magnesium, the quality of the products cannot be guaranteed, and it is necessary to pass the appropriate sintering method and electrofusion treatment to synthesize high purity. To the stone, the manufacturing cost of mullite is relatively increased.
上述脫蠟鑄造在將鑄件取出的過程中，其殼模因已經震碎或敲碎而無法重覆使用，雖然這些破損的廢殼模殘體當中仍然混合有許多結構完整的的莫來石，但因為被大量的矽酸膠所包覆或黏著而被當成廢棄物處理，不但無法降低脫蠟鑄造之加工成本，無形之中更已過度浪費可用的資源。 In the above dewaxing casting, in the process of taking out the casting, the shell mold cannot be reused because it has been shattered or broken, although many damaged mullites are still mixed in the damaged waste shell mold residue. However, because it is coated or scraped by a large amount of citrate glue, it can not be reduced as a processing cost of dewaxing casting, and intangible waste of available resources.
有鑑於此，本發明即在提供一種可於含有莫來石顆粒之廢殼模中取出莫來石顆粒供回收再利用之莫來石回收方法，以及與其相關之回收系統，為其主要目的者。 In view of the above, the present invention provides a mullite recovery method capable of removing mullite particles in a waste shell mold containing mullite particles for recycling, and a recovery system related thereto, as its main purpose. .
為達上述目的，本發明之莫來石回收方法係依序包括下列步驟：a.取得含有莫來石顆粒之廢殼模；b.將廢殼模粉碎成預定尺寸的殼模碎片；c.對殼模碎片施以預定模式之外力作用，將附著於莫來石顆粒表面之膠層剝離，使獲得混合有莫來石顆粒及膠層的混合產物；d.對上述混合產物進行過篩處理，將混合產物當中的莫來石顆粒析出，即可達成將莫來石顆粒回收之目的。 In order to achieve the above object, the mullite recovery method of the present invention comprises the following steps: a. obtaining a waste shell mold containing mullite particles; b. pulverizing the waste shell mold into shell mold fragments of a predetermined size; c. Applying a force to the shell mold fragments in a predetermined mode, peeling off the glue layer attached to the surface of the mullite particles, so as to obtain a mixed product mixed with mullite particles and a rubber layer; d. sieving the mixed product The mullite particles in the mixed product are precipitated to achieve the purpose of recovering the mullite particles.
所述莫來石回收方法係於對殼模碎片施以預定模式之外 力作用之過程中，係於控制在預定濕度範圍之環境中作業，避免莫來石顆粒與膠層再次黏著。 The mullite recovery method is based on applying a predetermined pattern to the shell mold fragments In the process of force, it is controlled to operate in an environment with a predetermined humidity range to prevent the mullite particles from sticking to the glue layer again.
所述莫來石回收方法係將殼模碎片朝預定物體撥甩的方式對殼模碎片施以外力作用。 The mullite recovery method applies an external force to the shell mold fragments by displacing the shell mold fragments toward the predetermined object.
所述莫來石回收方法係將殼模碎片朝預定物體噴灑的方式對殼模碎片施以外力作用。 The mullite recovery method applies an external force to the shell mold fragments by spraying the shell mold fragments toward the predetermined object.
所述莫來石回收方法係以預定物品滾碾於殼模碎片的方式對殼模碎片施以外力作用。 The mullite recovery method applies an external force to the shell mold fragments in such a manner that the predetermined article rolls over the shell mold fragments.
所述莫來石回收方法係以預定物品連同殼模碎片置於一容器中滾轉的方式對殼模碎片施以外力作用。 The mullite recovery method applies an external force to the shell mold fragments in such a manner that the predetermined article is rolled in a container together with the shell mold fragments.
本發明之莫來石回收系統，基本上係由一粉碎單元、至少一剝離單元，以及至少一篩選單元所組成；其中，該粉碎單元係用以將含有莫來石顆粒之廢殼模粉碎成預定尺寸的殼模碎片；該剝離單元係用以將來自粉碎單元之殼模碎片施以預定模式之外力作用，將附著於莫來石顆粒表面之膠層剝離，獲得混合有莫來石顆粒及膠層的混合產物；至於，該篩選單元係用以將來自剝離單元之混合產物施以過篩處理，將混合產物當中的莫來石顆粒析出。 The mullite recovery system of the present invention basically consists of a pulverizing unit, at least one stripping unit, and at least one screening unit; wherein the pulverizing unit is used to pulverize the waste shell mold containing mullite particles into a shell mold piece of a predetermined size; the stripping unit is configured to apply a force of a shell mold from the pulverizing unit to a predetermined pattern, and peel the glue layer attached to the surface of the mullite particle to obtain a mixed mullite particle and A mixed product of the rubber layer; as a result, the screening unit is configured to subject the mixed product from the stripping unit to a sieving treatment to precipitate mullite particles in the mixed product.
所述莫來石回收系統係進一步包括有一與剝離單元連接的濕度控制單元，該濕度控制單元係用以控制剝離單元之工作濕度。 The mullite recovery system further includes a humidity control unit coupled to the stripping unit for controlling the operating humidity of the stripping unit.
所述剝離單元，係以將殼模碎片朝預定物體撥甩的方式對殼模碎片施以外力作用。 The stripping unit applies an external force to the shell mold fragments in such a manner that the shell mold fragments are dialed toward the predetermined object.
所述剝離單元，係以將殼模碎片朝預定物體噴灑的方式對殼模碎片施以外力作用。 The stripping unit applies an external force to the shell mold fragments in such a manner as to spray the shell mold fragments toward the predetermined object.
所述剝離單元，係以預定物品滾碾於殼模碎片的方式對殼模碎片施以外力作用。 The stripping unit applies an external force to the shell mold fragments in such a manner that the predetermined article rolls on the shell mold fragments.
所述剝離單元，係以預定物品連同殼模碎片置於一容器中滾轉的方式對殼模碎片施以外力作用。 The stripping unit applies an external force to the shell mold fragments in such a manner that the predetermined article and the shell mold fragments are rolled in a container.
所述莫來石回收系統係以一剝離單元搭配一篩選單元之方式，由上而下依序設有數層剝離單元及複層篩選單元，且各篩選單元之篩網網目尺寸係由上向下逐漸縮減。 The mullite recovery system is provided with a stripping unit and a screening unit, and a plurality of stripping units and a multi-layer screening unit are sequentially arranged from top to bottom, and the screen mesh size of each screening unit is from top to bottom. Gradually shrinking.
本發明之莫來石回收方法及系統係可以產生下列功效： The mullite recycling method and system of the present invention can produce the following effects:
1.可以低廉的成本回收廢殼模中的莫來石顆粒。 1. The mullite particles in the waste shell mold can be recovered at a low cost.
2.藉由回收廢殼模中的莫來石顆粒再利用，大幅縮減購買莫來石的支出。 2. By recycling the mullite particles in the waste shell mold for reuse, the expenditure on the purchase of mullite is greatly reduced.
3.藉由回收廢殼模中的莫來石顆粒再利用，避免過度浪費原生礦物的資源。 3. Avoid recycling excessive resources of primary minerals by recycling mullite particles in the waste shell mold.
4.經過篩選處理之後的殘體，由於其中主要的莫來石顆粒已被析出，故尤適合當做陶瓷原料再利用。 4. After the screening treatment, since the main mullite particles have been precipitated, it is particularly suitable for reuse as a ceramic raw material.
本發明之特點，可參閱本案圖式及實施例之詳細說明而獲得清楚地瞭解。 The features of the present invention can be clearly understood by referring to the drawings and the detailed description of the embodiments.
本發明即在提供一種可於廢殼模中取出莫來石供回收再利用之莫來石回收方法，以及與其相關之回收系統；如第一圖本發明之莫來石回收流程圖所示，本發明之莫來石回收方法，基本上係依序包括下列步驟： The present invention provides a mullite recovery method capable of removing mullite from a waste shell mold for recycling and recycling, and a recovery system therewith; as shown in the first diagram of the mullite recovery flow chart of the present invention, The mullite recycling method of the present invention basically comprises the following steps in sequence:
a.取得含有莫來石顆粒之廢殼模；於實施時，該廢殼模係可以取自脫蠟鑄造作業脫模之後所殘留下來之廢殼模，且 其廢殼模之成份係包含預定比例之莫來石粉末、預定比例之莫來石砂粒、預定比例之莫來石顆粒，以及分別用以構成莫來石粉末、莫來石砂粒、莫來石顆粒相互黏著之矽酸膠，本發明之主要目的則係用回收廢殼模當中之莫來石顆粒再利用。 a. obtaining a waste shell mold containing mullite particles; in practice, the waste shell mold system may be taken from a waste shell mold remaining after demolding in a dewaxing casting operation, and The composition of the waste shell mold comprises a predetermined proportion of mullite powder, a predetermined proportion of mullite sand particles, a predetermined proportion of mullite particles, and mullite powder, mullite sand, mullite, respectively. The yttrium acid granules to which the granules are adhered to each other, the main purpose of the present invention is to recycle the mullite particles in the waste shell mold.
b.將廢殼模粉碎成預定尺寸的殼模碎片；於實施時，係可藉由攪碎之方式，將廢殼模粉碎成預定尺寸的殼模碎片，且以粉碎至盡可能不破壞莫來石顆粒之程度為佳，使得以相對提高莫來石顆粒之回收率。 b. pulverizing the waste shell mold into shell mold fragments of a predetermined size; in practice, the waste shell mold can be pulverized into shell mold fragments of a predetermined size by pulverization, and pulverized to as much as possible without destroying The degree of the granules is preferably such that the recovery of the mullite particles is relatively increased.
c.對殼模碎片施以預定模式之外力作用，將附著於莫來石顆粒表面之膠層剝離，使獲得混合有莫來石顆粒及膠層的混合產物；於實施時，係可於控制在預定濕度範圍之環境中作業，對殼模碎片施以預定模式之外力作用；原則上，膠層黏性於加工經高溫硬化成形而不具黏性，因此，在越乾燥的環境下越容易讓膠層自莫來石顆粒表面剝離，並可避免莫來石顆粒與膠層再次凝聚黏著。 c. applying a predetermined mode external force to the shell mold fragments, peeling off the glue layer attached to the surface of the mullite particles, so as to obtain a mixed product mixed with mullite particles and a rubber layer; in practice, the system can be controlled Working in an environment with a predetermined humidity range, exerting a force on the shell mold fragments in a predetermined mode; in principle, the adhesive layer is viscous in the high temperature hardening process without being sticky, so the easier it is to make the glue in a dry environment The layer is peeled off from the surface of the mullite particles, and the mullite particles and the adhesive layer are prevented from coagulating and adhering again.
d.對上述混合產物進行過篩處理，將混合產物當中的莫來石顆粒析出，即可達成將莫來石回收之目的；於實施時，係可依照莫來石顆粒大小選擇適當網目尺寸之篩網將混合產物當中的莫來石顆粒篩選出來；當然，經由過篩處理之後的混合產物亦可再重覆上述b~c之步驟後，於對上述混合產物進行過篩處理之過程中，選擇網目尺寸較小之篩網將尺寸更小的莫來石顆粒或莫來石砂粒自混合產物當中篩選出來。 d. sieving the above mixed product to precipitate mullite particles in the mixed product, thereby achieving the purpose of recovering mullite; in practice, the appropriate mesh size can be selected according to the size of the mullite particles. Screening the mullite particles in the mixed product; of course, the mixed product after the sieving treatment may be repeated after the step b~c is repeated, during the sieving treatment of the mixed product, Screens with smaller mesh sizes are selected to screen smaller mullite particles or mullite sand from the mixed product.
再者，本發明於實施時，在對殼模碎片施以預定模式之外力作用，將附著於莫來石顆粒表面之膠層剝離，使獲得混 合有莫來石顆粒及膠層的混合產物之過程中，係可以選擇採用將殼模碎片朝預定物體撥甩的方式、將殼模碎片朝預定物體噴灑的方式、以預定物品滾碾於殼模碎片的方式，或是以預定物品連同殼模碎片置於一容器中滾轉的方式，對殼模碎片施以外力作用，由於矽酸膠之質地相對較莫來石脆弱，因此當受到上述方式之外力作用時，即可自莫來石表面剝離甚至崩解，進而將原本由矽酸膠及莫來石相黏著構成的殼模碎片加工成為混合有莫來石顆粒及膠層的混合產物。 Furthermore, in the implementation of the present invention, the shell mold fragments are subjected to a predetermined mode to exert a force, and the glue layer attached to the surface of the mullite particles is peeled off to obtain a mixture. In the process of combining the mullite particles and the rubber layer, the shell mold fragments may be selected to be sprayed toward the predetermined object, the shell mold fragments may be sprayed toward the predetermined object, and the predetermined article may be rolled over the shell. The manner of the shards, or the external force acting on the shell mold fragments in a manner that the predetermined articles are rolled together in a container together with the shell mold fragments, since the texture of the citric acid gel is relatively weaker than the mullite, When the external force is applied, the surface of the mullite may be peeled off or even disintegrated, and the shell mold fragments originally composed of the tannic acid gel and the mullite may be processed into a mixed product of mixed mullite particles and a rubber layer. .
至於，本發明之莫來石回收系統，基本上如第二圖所示，係由一粉碎單元10、至少一剝離單元20，以及至少一篩選單元30所組成；其中：該粉碎單元10係用以將含有莫來石顆粒之廢殼模粉碎成預定尺寸的殼模碎片；於實施時，該粉碎單元10係具有兩組以預定間距平行併列之旋轉刀具，該旋轉刀具並以預定的轉速相對旋轉，讓廢殼模通過兩組旋轉刀具之方式，由旋轉刀具將廢殼模粉碎成預定尺寸的殼模碎片。 As shown in the second figure, the mullite recovery system of the present invention is composed of a pulverizing unit 10, at least one stripping unit 20, and at least one screening unit 30; wherein: the pulverizing unit 10 is used To pulverize the waste shell mold containing mullite particles into shell mold pieces of a predetermined size; in practice, the pulverizing unit 10 has two sets of rotary cutters juxtaposed in parallel at a predetermined pitch, and the rotary cutters are relatively fixed at a predetermined rotational speed. Rotating, the waste shell mold is passed through two sets of rotating cutters, and the scrap shell mold is pulverized into shell mold fragments of a predetermined size by a rotary cutter.
該剝離單元20係用以將來自粉碎單元10之殼模碎片施以預定模式之外力作用，將附著於莫來石顆粒表面之膠層剝離，獲得混合有莫來石顆粒及膠層的混合產物；於實施時，該剝離單元20係可以選擇透過將殼模碎片朝預定物體撥甩、將殼模碎片朝預定物體噴灑、以預定物品滾碾於殼模碎片，或是以預定物品連同殼模碎片置於一容器中滾轉的方式對殼模碎片施以外力作用。 The stripping unit 20 is configured to apply a force outside the predetermined mode to the shell mold fragments from the pulverizing unit 10, and peel off the adhesive layer attached to the surface of the mullite particles to obtain a mixed product of the mixed mullite particles and the rubber layer. In practice, the stripping unit 20 can selectively slap the shell mold fragments toward the predetermined object, spray the shell mold fragments toward the predetermined object, roll the predetermined article onto the shell mold fragments, or use the predetermined article together with the shell mold. The way the pieces are placed in a container to roll outwards exerts an external force on the shell mold fragments.
至於，該篩選單元30係用以將來自剝離單元20之混合產物施以過篩處理，將混合產物當中的莫來石顆粒析出；於實 施時，整體莫來石回收系統係可如第三圖所示，以一剝離單元20搭配一篩選單元30之方式，由上而下依序設有數層剝離單元20及複層篩選單元30，且各篩選單元30之篩網網目尺寸係由上向下逐漸縮減，使得以在同一設備配置地點將達到對回收之莫來石顆粒進行分類之目的，並可省去相關輸送裝置之建置成本，以及運送時間，進而提升莫來石之回收產能。 As for the screening unit 30, the mixed product from the stripping unit 20 is subjected to a sieving treatment to precipitate mullite particles in the mixed product; When the mullite recycling system is applied, as shown in the third figure, a stripping unit 20 is combined with a screening unit 30, and a plurality of stripping units 20 and a multi-layer screening unit 30 are sequentially disposed from top to bottom. Moreover, the screen mesh size of each screening unit 30 is gradually reduced from the top to the bottom, so that the mullite particles recovered can be classified at the same equipment configuration location, and the construction cost of the relevant conveying device can be omitted. And the delivery time to increase the recycling capacity of mullite.
值得一提的是，本發明之莫來石回收系統係可如第四圖所示，進一步包括有一與剝離單元20連接的濕度控制單元40，該濕度控制單元40係用以控制殼模碎片在預定濕度範圍之作業，尤其，該濕度控制單元40可將該殼模碎片之溼度控制在0~2%為最佳工作溼度，以使經乾燥後殼模碎片在剝離單元20作業中，施以預定模式之外力對殼模碎片作用，讓膠層更容易自莫來石顆粒表面剝離，並可避免莫來石顆粒與膠層再次凝聚黏著。 It is worth mentioning that the mullite recovery system of the present invention, as shown in the fourth figure, further includes a humidity control unit 40 connected to the stripping unit 20 for controlling the shell mold fragments. The operation of the predetermined humidity range, in particular, the humidity control unit 40 can control the humidity of the shell mold fragments to 0~2% as the optimal working humidity, so that the dried shell mold fragments are applied in the peeling unit 20 operation. The external force of the predetermined mode acts on the shell mold fragments, so that the rubber layer is more easily peeled off from the surface of the mullite particles, and the mullite particles and the rubber layer can be prevented from cohesing again.
具體而言，本發明係可以透過低廉的成本回收廢殼模中的莫來石顆粒，並且藉由回收廢殼模中的莫來石顆粒再利用，大幅縮減購買莫來石的支出，並藉由回收廢殼模中的莫來石顆粒再利用，避免過度浪費原生礦物的資源；尤其，經過篩選處理之後的殘體，由於其中主要的莫來石顆粒已被析出，故尤適合當做陶瓷原料再利用。 Specifically, the present invention can recover mullite particles in a waste shell mold at a low cost, and by recycling the mullite particles in the waste shell mold, greatly reducing the expenditure on purchasing mullite, and borrowing Recycling the mullite particles in the recovered waste shell mold to avoid excessive waste of resources of the original minerals; in particular, the residue after the screening treatment is particularly suitable as a ceramic raw material because the main mullite particles have been precipitated. Reuse.
如上所述，本發明提供一較佳可行之莫來石回收方法以及與其相關之莫來時回收系統，爰依法提呈發明專利之申請；本發明之技術內容及技術特點已揭示如上，然而熟悉本項技術之人士仍可能基於本發明之揭示而作各種不背離本案發明精神之替換及修飾。因此，本發明之保護範圍應不限於 實施例所揭示者，而應包括各種不背離本發明之替換及修飾，並為以下之申請專利範圍所涵蓋。 As described above, the present invention provides a preferred and feasible mullite recovery method and a related Mohry recovery system, and an application for an invention patent according to law; the technical contents and technical features of the present invention have been disclosed above, but are familiar with The person skilled in the art may still make various substitutions and modifications without departing from the spirit of the invention. Therefore, the scope of protection of the present invention should not be limited The present invention is to be construed as being limited by the scope of the appended claims.
10‧‧‧粉碎單元 10‧‧‧Smashing unit
20‧‧‧剝離單元 20‧‧‧ peeling unit
30‧‧‧過篩單元 30‧‧‧ screening unit
40‧‧‧濕度控制單元 40‧‧‧Humidity control unit
第一圖係為本發明之莫來石回收方法作業流程圖。 The first figure is a flow chart of the operation of the mullite recycling method of the present invention.
第二圖係為本發明第一實施例之莫來石回收系統組成構方塊示意圖。 The second figure is a block diagram showing the composition of the mullite recovery system of the first embodiment of the present invention.
第三圖係為本發明第二實施例之剝離單元及篩選單元之組合架構方塊示意圖。 The third figure is a block diagram showing the combined structure of the stripping unit and the screening unit of the second embodiment of the present invention.
第四圖係為本發明第三實施例之莫來石回收系統組成構方塊示意圖。 The fourth figure is a block diagram showing the composition of the mullite recovery system according to the third embodiment of the present invention.
Claims (10)
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| TW101130686A TW201408388A (en) | 2012-08-23 | 2012-08-23 | Mullite recovery method and mullite recovery system |
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