TWI707733B

TWI707733B - Foundry waste sand recycling structure

Info

Publication number: TWI707733B
Application number: TW108103621A
Authority: TW
Inventors: 張榮仁
Original assignee: 聚豐再生砂設備有限公司
Priority date: 2019-01-30
Filing date: 2019-01-30
Publication date: 2020-10-21
Also published as: TW202027878A

Abstract

本發明一種鑄造廢砂回收結構，包含：一送風單元、一粉碎單元及一回收單元，該送風單元包括有一氣壓裝置及複數送風管，由該氣壓裝置產生高壓空氣輸出至該複數送風管，該粉碎單元具有一進砂端及一出砂端，該進砂端與出砂端間設有複數粉碎區，各相鄰粉碎區間設有至少一流通孔相通，各粉碎區分別設有一組接上述送風管之粉碎進風孔，至少最靠近該進砂端的粉碎區設有一進砂孔，該出砂端設有至少一出砂孔，該回收單元與該粉碎單元之出砂端連接，該回收單元包括有一回收空間、一出風口及一排砂口，該回收空間與該粉碎單元之出砂孔連通；藉此，俾達鑄造廢砂粉碎過程機械磨損大幅降低，粉碎效率及粉碎效果提升。 The present invention is a casting waste sand recovery structure, comprising: an air supply unit, a crushing unit and a recovery unit. The air supply unit includes an air pressure device and a plurality of air supply pipes. The air pressure device generates high-pressure air and outputs it to the plurality of air supply pipes. The crushing unit has a sand inlet end and a sand outlet end. A plurality of crushing areas are arranged between the sand inlet end and the sand outlet end. Each adjacent crushing area is provided with at least one flow hole communicating with each other. For the crushing air inlet of the air supply pipe, at least the crushing area closest to the sand inlet is provided with a sand inlet, the sand outlet is provided with at least one sand outlet, the recovery unit is connected to the sand outlet of the crushing unit, and the recovery The unit includes a recycling space, an air outlet, and a row of sand openings. The recycling space is connected to the sand outlet of the crushing unit; thereby, the mechanical abrasion during the crushing process of the waste casting sand of Bida is greatly reduced, and the crushing efficiency and crushing effect are improved.

Description

鑄造廢砂回收結構 Foundry waste sand recycling structure

本發明係有關於一種回收結構，尤指一種用以將鑄造後之鑄造廢砂粉碎細粒化的鑄造廢砂回收結構。 The present invention relates to a recycling structure, in particular to a recycling structure for waste foundry sand used for pulverizing and finely granulating waste foundry sand after casting.

按，鑄造是指將金屬加熱後變成熔融的金屬液體，在熔融狀態時將其倒入預先做好的鑄模內，待其冷卻凝固後取出，除去澆冒口等，即得所需之鑄件，而鑄模的材料大多是鑄砂，故亦稱為砂模，該砂模在一次性的使用完畢後，因為經過鑄造後其狀態會有所改變，鑄砂會因高溫燒結成塊狀，因而回收鑄砂時通常會將砂模打碎形成碎塊狀，去除充當粘結劑使用之樹脂或皂土等雜質，再使用一粉碎機利用高速旋轉之離心力將碎塊狀鑄砂粉碎成顆粒狀。 Press, casting refers to heating the metal into a molten metal liquid, pour it into a pre-made mold when it is in a molten state, and take it out after cooling and solidification, remove the pouring riser, etc., to obtain the desired casting. Most of the material of the casting mold is sand casting, so it is also called sand mold. After the one-time use, the state of the sand mold will change after casting. The casting sand will be sintered into lumps due to high temperature, so it is recycled. When casting sand, the sand mold is usually broken into pieces to remove impurities such as resin or bentonite used as a binder, and then a pulverizer is used to pulverize the broken pieces of casting sand into granules using the centrifugal force of high-speed rotation.

然而，該粉碎機係利用高速旋轉之離心力，帶動碎塊狀鑄砂反覆撞擊粉碎機內壁達到逐漸粉碎的效果，故易造成粉碎機內壁磨耗，以致粉碎機容易損壞，而需時常維修或更換零組件，另外，該種方式撞擊的機率低，使得粉碎效率差，粉碎的效果有限，無法達到確實的細化效果。 However, the crusher uses the centrifugal force of high-speed rotation to drive the fragmented cast sand to repeatedly hit the inner wall of the crusher to achieve a gradual crushing effect. Therefore, the inner wall of the crusher is easily worn, and the crusher is easily damaged and requires frequent maintenance or repair. Replacement of components, in addition, the probability of impact in this way is low, resulting in poor crushing efficiency, limited crushing effect, and no real refinement effect.

本發明人有鑑於習知鑄砂粉碎機具有上述缺點，是以乃思及創作的意念，經多方探討與試作樣品試驗，及多次修正改良後，終推出本發明。 In view of the above-mentioned shortcomings of the conventional sand pulverizer, the inventor finally came up with the present invention after many discussions, trial sample tests, and many modifications and improvements based on the idea of thinking and creation.

本發明提供一種鑄造廢砂回收結構，包含：一送風單元，該送風單元包括有一氣壓裝置及複數送風管，該複數送風管與該氣壓裝置連通，由該氣壓裝置產生高壓空氣輸出至該複數送風管；一粉碎單元，該粉碎單元具有一進砂端及一出砂端，該進砂端與出砂端間設有以複數分隔部分隔形成之複數粉碎區，該分隔部設有連通相鄰粉碎區之至少一流通孔，各粉碎區分別設有一粉碎進風孔與該複數送風管組接，再者，至少最靠近該進砂端的粉碎區設有一進砂孔，該出砂端設有至少一出砂孔與最靠近該出砂端的粉碎區連通；及一回收單元，該回收單元與該粉碎單元之出砂端連接，該回收單元包括有一回收空間、一出風口及一排砂口，該回收空間與該粉碎單元之出砂孔連通，該出風口及該排砂口分別與該回收空間連通。 The present invention provides a foundry waste sand recovery structure, comprising: an air supply unit, the air supply unit includes an air pressure device and a plurality of air supply pipes, the plurality of air supply pipes are connected with the air pressure device, the air pressure device generates high-pressure air output to the plurality of air supply Tube; a crushing unit, the crushing unit has a sand inlet and a sand outlet, the sand inlet and the sand outlet is provided with a plurality of divided parts separated by a plurality of pulverization zone, the partition is provided with adjacent adjacent At least one flow hole in the crushing zone, each crushing zone is provided with a crushing air inlet hole to connect with the plural air supply pipes, and at least the crushing zone closest to the sand inlet is provided with a sand inlet, and the sand outlet is provided with At least one sand outlet is connected to the crushing zone closest to the sand outlet; and a recovery unit connected to the sand outlet of the crushing unit. The recovery unit includes a recovery space, an air outlet, and a sand discharge port , The recovery space is communicated with the sand outlet of the crushing unit, and the air outlet and the sand outlet are respectively communicated with the recovery space.

本發明鑄造廢砂回收結構之主要目的，在於其係將鑄造廢砂持續送入粉碎單元靠近進砂端的粉碎區內，及由送風單元產生高壓空氣經過複數送風管輸送至粉碎單元之各粉碎區內，於各粉碎區內產生漩渦氣流，利用該漩渦氣流帶動鑄造廢砂在各粉碎區內翻滾，令鑄造廢砂撞擊粉碎區內壁及於粉碎區內相互撞擊，並且同時令鑄造廢砂由粉碎單元靠近進砂端的粉碎區通過分隔部的流通孔逐一往靠近出砂端的粉碎區移動，使得鑄造廢砂逐漸粉碎，藉以達到粉碎過程機械磨損大幅降低，粉碎效率及粉碎效果提升。 The main purpose of the foundry waste sand recovery structure of the present invention is to continuously send the foundry waste sand into the crushing area near the sand inlet end of the crushing unit, and the high-pressure air generated by the air supply unit is transported to the crushing areas of the crushing unit through multiple air supply pipes. Inside, a vortex air current is generated in each crushing zone, and the vortex air current is used to drive the waste foundry sand to roll in each crushing zone, so that the waste foundry sand hits the wall of the crushing zone and collides with each other in the crushing zone, and at the same time, the waste foundry sand is removed The crushing area of the crushing unit near the sand inlet end moves one by one to the crushing area near the sand outlet through the circulation hole of the partition, so that the waste foundry sand is gradually crushed, so that the mechanical wear of the crushing process is greatly reduced, and the crushing efficiency and crushing effect are improved.

10:送風單元 10: Air supply unit

11:氣壓裝置 11: Air pressure device

12:馬達 12: Motor

13:過濾裝置 13: filter device

14:分歧風管 14: Branch duct

15:送風管 15: Air supply pipe

20:粉碎單元 20: Crushing unit

20A:進砂端 20A: Sand inlet

20B:出砂端 20B: Sand end

21:粉碎區 21: Crushing Zone

21A:存砂區 21A: Sand storage area

211:粉碎進風孔 211: Smashing the Air Hole

211A:揚起進風孔 211A: Raise the air inlet

212:清潔孔 212: Clean hole

213:進砂孔 213: Sand hole

22:分隔部 22: Partition

221:流通孔 221: circulation hole

23:模塊 23: Module

231:定位桿 231: positioning rod

232:固定桿 232: fixed pole

233:定位孔 233: positioning hole

234:固定孔 234: fixed hole

24:前板片 24: front plate

241:第一觀視窗 241: First View Window

25:後板片 25: back plate

251:出砂孔 251: Sand Hole

26:進砂裝置 26: Sand feeding device

30:回收單元 30: Recovery unit

31:回收空間 31: Reclaim space

311:支撐板 311: support plate

312:擋板 312: Baffle

313:導引板 313: Guide Board

32:出風口 32: Air outlet

33:排砂口 33: Sand discharge port

34:第二觀視窗 34: Second view window

40:鑄造廢砂 40: Foundry waste sand

第一圖係本發明之立體圖。 The first figure is a perspective view of the present invention.

第二圖係本發明之局部立體分解圖。 The second figure is a partial three-dimensional exploded view of the present invention.

第三圖係本發明模塊之剖面圖。 The third figure is a cross-sectional view of the module of the present invention.

第四圖係本發明粉碎單元及收單元之剖面圖。 The fourth figure is a cross-sectional view of the crushing unit and receiving unit of the present invention.

第五圖係本發明鑄造廢砂於粉碎區內受漩渦氣流帶動翻滾撞擊之剖面示意圖。 The fifth figure is a schematic cross-sectional view of the waste foundry sand in the crushing zone of the present invention being tumbling and impacted by the vortex airflow.

第六圖係本發明鑄造廢砂回收之剖面示意圖。 Figure 6 is a schematic cross-sectional view of the recovery of waste foundry sand of the present invention.

以下茲配合本發明較佳實施例之圖式進一步說明如下，以期能使熟悉本發明相關技術之人士，得依本說明書之陳述據以實施。 Hereinafter, in conjunction with the drawings of the preferred embodiments of the present invention, the following is further explained, in order to enable those who are familiar with the related technology of the present invention to implement them based on the statements in this specification.

首先，請配合參閱第一、二、三及四圖所示，本發明為一種鑄造廢砂回收結構，包含：一送風單元10、一粉碎單元20及一回收單元30。 First of all, please refer to the first, second, third and fourth figures. The present invention is a waste foundry sand recovery structure, which includes: an air supply unit 10, a crushing unit 20, and a recovery unit 30.

該送風單元10包括有一氣壓裝置11、一馬達12、一過濾裝置13、一分歧風管14及複數送風管15，該氣裝裝置11用以產生高壓空氣，該馬達12用以驅動該氣壓裝置11運轉，該過濾裝置13與該氣壓裝置11組接，用以對氣壓裝置11之進氣提供過濾作用，該分歧風管14與該氣壓裝置11組接，該複數送風管15與該分歧風管14組接，使該氣壓裝置11產生的高壓空氣經由該分歧風管14輸出至該複數送風管15。 The air supply unit 10 includes an air pressure device 11, a motor 12, a filter device 13, a branch air pipe 14 and a plurality of air supply pipes 15. The air installation 11 is used to generate high pressure air, and the motor 12 is used to drive the air pressure device 11 to operate, the filter device 13 is combined with the air pressure device 11 to provide filtering for the air intake of the air pressure device 11, the branch air pipe 14 is connected to the air pressure device 11, and the plurality of air supply pipes 15 are connected to the branch air The pipes 14 are grouped together so that the high-pressure air generated by the air pressure device 11 is output to the plurality of air supply pipes 15 through the branch air pipe 14.

該粉碎單元20具有一進砂端20A及一出砂端20B，該進砂端20A與出砂端20B間設有以複數分隔部22分隔形成併排之複數粉碎區21(本實施例該粉碎單元20包括有複數模塊23、一前板片24及一後板片25，該前板片24設置於該進砂端20A，該後板片25設置於該出砂端20B，該複數模塊 23併排連同該前板片24與後板片25以一定位桿231穿設定位及以複數固定桿232穿設鎖固，各該模塊23分別設有一供該定位桿231穿設的定位孔233及複數供該固定桿232穿設的固定孔234，該複數粉碎區21以一對一方式對應設置於該複數模塊23上，該前板片24設有一第一觀視窗241)，該複數粉碎區21下側分別設置一存砂區21A，該分隔部22設有連通相鄰粉碎區21之三流通孔221，各該粉碎區21分別設有上下排列之一粉碎進風孔211及一揚起進風孔211A，且各相鄰粉碎區21的粉碎進風孔211及揚起進風孔211A係左右交錯設置，該粉碎進風孔211及揚起進風孔211A分別與該複數送風管15組接，該揚起進風孔211A與該存砂區21A對應，各該粉碎區21底部分別設有一用以清潔粉碎區21之清潔孔212，最靠近及第二靠近該進砂端20A的粉碎區21以左右對稱各設有一進砂孔213，該左右對稱設置的進砂孔213分別組接一進砂裝置26，該左右對稱設置的進砂孔213分別與連通同一粉碎區21的該粉碎進風孔211相通，該出砂端20B的後板片25設有三出砂孔251與最靠近該出砂端20B的粉碎區21連通。 The crushing unit 20 has a sand inlet end 20A and a sand outlet end 20B. Between the sand inlet end 20A and the sand outlet end 20B, a plurality of pulverization zones 21 are formed side by side separated by a plurality of partitions 22 (in this embodiment, the pulverization unit 20 includes a plurality of modules 23, a front plate 24 and a rear plate 25. The front plate 24 is arranged at the sand inlet 20A, the rear plate 25 is arranged at the sand outlet 20B, and the plurality of modules 23 side by side, together with the front plate 24 and the rear plate 25, a positioning rod 231 is used to pass through to set the position and a plurality of fixing rods 232 are used to pass through and lock. Each module 23 is provided with a positioning hole 233 for the positioning rod 231 to pass through. And a plurality of fixing holes 234 for the fixing rod 232 to pass through, the plurality of crushing areas 21 are correspondingly arranged on the plurality of modules 23 in a one-to-one manner, the front plate 24 is provided with a first viewing window 241), the plurality of crushing A sand storage area 21A is provided on the lower side of the area 21. The partition 22 is provided with three circulation holes 221 connecting the adjacent crushing areas 21. Each crushing area 21 is provided with a crushing air inlet 211 and a smashing air hole 211 arranged up and down. The air inlet holes 211A, and the crushing air inlet holes 211 and the raising air inlet holes 211A of each adjacent crushing zone 21 are staggered left and right. The crushing air inlet holes 211 and the raising air inlet holes 211A are respectively connected to the plural air supply pipes. 15 groups connected, the raised air inlet 211A corresponds to the sand storage area 21A, and the bottom of each crushing area 21 is respectively provided with a cleaning hole 212 for cleaning the crushing area 21, the closest and second closest to the sand inlet 20A The smashing zone 21 is symmetrically provided with a sand inlet 213, the symmetrical sand inlet 213 is connected to a sand inlet device 26, and the symmetrical sand inlet 213 is connected to the same smashing zone 21 The crushing air inlet 211 communicates, and the rear plate 25 of the sanding end 20B is provided with three sanding holes 251 to communicate with the crushing zone 21 closest to the sanding end 20B.

該回收單元30與該粉碎單元20之出砂端20B連接，該回收單元30包括有一回收空間31、一出風口32、一排砂口33及一第二觀視窗34，該回收空間31與該粉碎單元20之出砂孔251連通，該出風口32設置於該回收空間31頂部與該回收空間31連通，該排砂口33設置於該回收空間31底部與該回收空間31連通，該回收空間31內設有一支撐板311、一擋板312及一導引板313，該支撐板311係設置於對應該出砂孔251下側，該擋板312係設置於該支撐板311上方，該導引板313係設置於該支撐板311下方，該第二觀視窗34設於該回收單元30一側。 The recycling unit 30 is connected to the sand output end 20B of the crushing unit 20. The recycling unit 30 includes a recycling space 31, an air outlet 32, a sand row 33, and a second viewing window 34. The recycling space 31 is connected to the The sand outlet 251 of the crushing unit 20 is connected, the air outlet 32 is arranged at the top of the recovery space 31 and communicates with the recovery space 31, and the sand outlet 33 is arranged at the bottom of the recovery space 31 and communicates with the recovery space 31. The recovery space 31 is provided with a support plate 311, a baffle 312 and a guide plate 313. The support plate 311 is arranged on the lower side of the sand hole 251. The baffle 312 is arranged above the support plate 311. The lead plate 313 is arranged below the supporting plate 311, and the second viewing window 34 is arranged on the side of the recovery unit 30.

本發明使用時，如第五圖及第六圖所示，將鑄造廢砂40置於進砂裝置26內，通過該進砂裝置26將鑄造廢砂40經由進砂孔213持續送入粉碎單元靠近進砂端20A的粉碎區21內，及送風單元10之氣壓裝置11產生的高壓空氣經由分歧風管14及複數送風管15輸送至粉碎單元20之各粉碎區21內，於各粉碎區21內產生漩渦氣流，利用該漩渦氣流帶動鑄造廢砂40往上揚起在各粉碎區21內翻滾，令鑄造廢砂40撞擊粉碎區21內壁及於粉碎區21內鑄造廢砂40相互撞擊，並且同時令鑄造廢砂40由粉碎單元20靠近進砂端20A的粉碎區21通過分隔部22的流通孔221逐一往靠近出砂端20B的粉碎區21移動，每移動一個粉碎區21鑄造廢砂40都會於粉碎區21內再次翻滾撞擊，使得鑄造廢砂40逐漸粉碎，越靠近出砂端20B之粉碎區21內的鑄造廢砂40越細粒化，當鑄造廢砂40通過最靠近出砂端20B之粉碎區21後，連同高壓空氣由出砂孔251進入回收單元30之回收空間31內，藉由擋板312阻擋鑄造廢砂40被吹往出風口32排出，於回收空間31內完成鑄造廢砂40最後一次撞擊，接著高壓空氣會往上由出風口32排出，而完成細粒化的鑄造廢砂40則先落於支撐板311上累積，再順著導引板313導引至排砂口33排出收集。 When the present invention is used, as shown in the fifth and sixth figures, the waste foundry sand 40 is placed in the sand feeding device 26, and the waste foundry sand 40 is continuously sent to the crushing unit through the sand feeding hole 213 through the sand feeding device 26 The high-pressure air generated in the crushing zone 21 near the sand inlet 20A and the air pressure device 11 of the air supply unit 10 is transported to the crushing zones 21 of the crushing unit 20 through the branch air pipe 14 and the plural air supply pipes 15 in each crushing zone 21 The vortex airflow is generated inside, and the vortex airflow is used to drive the waste foundry sand 40 upwards and roll in each crushing zone 21, so that the waste foundry sand 40 hits the inner wall of the crushing zone 21 and the waste foundry sand 40 collides with each other in the crushing zone 21, and At the same time, the waste foundry sand 40 is moved from the grinding unit 20 near the grinding zone 21 of the sand inlet end 20A through the circulation hole 221 of the partition 22 to the grinding zone 21 near the outlet end 20B one by one. Will roll and hit again in the crushing zone 21, causing the waste foundry sand 40 to be gradually crushed. The waste foundry sand 40 in the crushing zone 21 closer to the sanding end 20B becomes more granular. When the waste foundry sand 40 passes the nearest sanding end After the crushing zone 21 of 20B, the high-pressure air enters the recovery space 31 of the recovery unit 30 from the sand outlet 251. The baffle 312 prevents the waste casting sand 40 from being blown to the air outlet 32 to be discharged, and the casting is completed in the recovery space 31 The waste sand 40 hits for the last time, and then high-pressure air will be discharged upward through the air outlet 32, and the fine-grained waste foundry sand 40 will first fall on the support plate 311 and accumulate, and then be guided along the guide plate 313 to the exhaust The sand port 33 is discharged and collected.

由上述具體實施例之結構，可得到下述之效益： From the structure of the above specific embodiment, the following benefits can be obtained:

本發明鑄造廢砂回收結構，其係將鑄造廢砂40持續送入粉碎單元20靠近進砂端20A的粉碎區21內，及由送風單元10產生高壓空氣經過複數送風管15由粉碎進風孔211及揚起進風孔211A輸送至粉碎單元20之各粉碎區21內，於各粉碎區21內產生漩渦氣流，利用該漩渦氣流帶動鑄造廢砂40往上揚起在各粉碎區21內翻滾，令鑄造廢砂40撞擊粉碎區21內壁及於粉碎區內鑄造廢砂40相互撞擊，並且同時令鑄造廢砂40由粉碎單元20靠近進砂端20A的粉碎區21通過分隔部22的流通孔221逐一往靠近出砂端20B的粉碎區21移動，使得鑄造廢砂40逐漸粉碎，越靠近出砂端20B之粉碎區21內的鑄造廢砂40越細粒化，藉以達到粉碎過程機械磨損大幅降低，粉碎效率及粉碎效果提升。 The foundry waste sand recovery structure of the present invention continuously feeds the foundry waste sand 40 into the crushing area 21 of the crushing unit 20 near the sand inlet end 20A, and the high-pressure air generated by the air supply unit 10 passes through the multiple air supply pipes 15 from the crushing air inlet 211 and the raising air inlet 211A are transported to each crushing area 21 of the crushing unit 20, and a vortex airflow is generated in each crushing area 21, and the vortex airflow is used to drive the waste foundry sand 40 to rise and roll in each crushing area 21. The waste foundry sand 40 is made to collide with the inner wall of the crushing zone 21 and the waste foundry sand 40 in the crushing zone collide with each other, and at the same time, the waste foundry sand 40 is brought into by the crushing unit 20. The crushing area 21 of the sand end 20A moves one by one to the crushing area 21 near the sand end 20B through the circulation hole 221 of the partition 22, so that the foundry waste sand 40 is gradually crushed, and the casting waste in the crushing area 21 closer to the sand end 20B is gradually crushed. The finer the sand 40 is, the greater the reduction in mechanical wear during the crushing process, the higher the crushing efficiency and the crushing effect.

10:送風單元 10: Air supply unit

11:氣壓裝置 11: Air pressure device

12:馬達 12: Motor

13:過濾裝置 13: filter device

14:分歧風管 14: Branch duct

15:送風管 15: Air supply pipe

20:粉碎單元 20: Crushing unit

20A:進砂端 20A: Sand inlet

20B:出砂端 20B: Sand end

23:模塊 23: Module

241:第一觀視窗 241: First View Window

26:進砂裝置 26: Sand feeding device

30:回收單元 30: Recovery unit

34:第二觀視窗 34: Second view window

40:鑄造廢砂 40: Foundry waste sand

Claims

一種鑄造廢砂回收結構，包含：一送風單元，該送風單元包括有一氣壓裝置及複數送風管，該複數送風管與該氣壓裝置連通，由該氣壓裝置產生高壓空氣輸出至該複數送風管；一粉碎單元，該粉碎單元具有一進砂端及一出砂端，該進砂端與出砂端間設有以複數分隔部分隔形成之複數粉碎區，該粉碎單元並包括有複數模塊、一前板片及一後板片，該前板片設置於該進砂端，該後板片設置於該出砂端，該複數模塊併排連同該前板片與該後板片以一定位桿穿設定位及以複數固定桿穿設鎖固，該複數粉碎區以一對一方式對應設置於該複數模塊上，該分隔部設有連通相鄰粉碎區之至少一流通孔，各粉碎區分別設有一粉碎進風孔與該複數送風管組接，再者，至少最靠近該進砂端的粉碎區設有一進砂孔，該出砂端設有至少一出砂孔與最靠近該出砂端的粉碎區連通；及一回收單元，該回收單元與該粉碎單元之出砂端連接，該回收單元包括有一回收空間、一出風口及一排砂口，該回收空間與該粉碎單元之出砂孔連通，該出風口及該排砂口分別與該回收空間連通。 A casting waste sand recovery structure, comprising: an air supply unit, the air supply unit includes an air pressure device and a plurality of air supply pipes, the plurality of air supply pipes are connected with the air pressure device, and the air pressure device generates high-pressure air to output to the plurality of air supply pipes; A crushing unit, the crushing unit has a sand inlet end and a sand outlet end, the sand inlet end and the sand outlet end are provided with a plurality of crushing areas formed by a plurality of partitions, the crushing unit and includes a plurality of modules, a front Plate and a back plate, the front plate is arranged at the sand inlet end, the rear plate is arranged at the sand outlet end, the plural modules are arranged side by side together with the front plate and the rear plate through a positioning rod A plurality of fixed rods are used to penetrate and lock, the plurality of crushing areas are correspondingly arranged on the plurality of modules in a one-to-one manner, the partition is provided with at least one circulation hole connecting adjacent crushing areas, and each crushing area is respectively provided with a The crushing air inlet is combined with the plurality of air supply pipes. Furthermore, at least the crushing area closest to the sand inlet is provided with a sand inlet, and the sand outlet is provided with at least one sand outlet and a crushing area closest to the sand outlet. Connected; and a recovery unit connected to the sand output end of the crushing unit, the recovery unit including a recovery space, an air outlet and a sand discharge port, the recovery space is connected to the sand output hole of the crushing unit, The air outlet and the sand outlet are respectively communicated with the recovery space.

如申請專利範圍第1項所述之鑄造廢砂回收結構，其中該送風單元另包括有一馬達、一過濾裝置及一分歧風管，該馬達用以驅動該氣壓裝置運轉產生高壓空氣，該過濾裝置與該氣壓裝置組接，用以對氣壓裝置之進氣提供過濾作用，該分歧風管與該氣壓裝置組接，該複數送風管與該分歧風管組接，該氣壓裝置產生的高壓空氣經由該分歧風管輸出至該複數送風管。 For example, in the foundry waste sand recovery structure described in item 1 of the scope of patent application, the air supply unit further includes a motor, a filter device and a branch air pipe. The motor is used to drive the air pressure device to operate to generate high pressure air. The filter device versus The air pressure device is assembled to provide a filtering effect on the air intake of the air pressure device, the branch air pipe is connected to the air pressure device, the plural air supply pipes are assembled to the branch air pipe, and the high pressure air generated by the air pressure device passes through the The branch air pipe is output to the plural air supply pipes.

如申請專利範圍第1項所述之鑄造廢砂回收結構，其中各該模塊分別設有一供該定位桿穿設的定位孔及複數供該固定桿穿設的固定孔。 For example, in the foundry waste sand recovery structure described in item 1 of the scope of patent application, each module is provided with a positioning hole for the positioning rod to penetrate and a plurality of fixing holes for the fixing rod to penetrate.

如申請專利範圍第1項所述之鑄造廢砂回收結構，其中該前板片設有一第一觀視窗，該回收單元另包括有一第二觀視窗，該第二觀視窗設於該回收單元一側。 For example, in the foundry waste sand recycling structure described in item 1 of the scope of patent application, the front plate is provided with a first viewing window, and the recycling unit further includes a second viewing window, and the second viewing window is provided in a recycling unit. side.

如申請專利範圍第1項所述之鑄造廢砂回收結構，其中該複數粉碎區下側分別設置一存砂區。 According to the foundry waste sand recovery structure described in item 1 of the scope of patent application, a sand storage area is respectively provided on the lower side of the plural crushing areas.

如申請專利範圍第5項所述之鑄造廢砂回收結構，其中各該粉碎區分別另設有一揚起進風孔，各該粉碎區的粉碎進風孔及揚起進風孔係上下排列，各相鄰粉碎區的粉碎進風孔及揚起進風孔係左右交錯設置，該揚起進風孔與該複數送風管組接，該揚起進風孔與該存砂區對應，該粉碎單元最靠近及第二靠近該進砂端的粉碎區以左右對稱各設有一進砂孔，該左右對稱設置的進砂孔分別組接一進砂裝置。 For example, the casting waste sand recovery structure described in item 5 of the scope of patent application, wherein each crushing area is provided with a raised air inlet, and the crushing air inlet and the raising air inlet of each crushing area are arranged up and down, The crushing air inlets and the raising air inlets of each adjacent crushing area are staggered on the left and right. The raising air inlets are connected with the plural air supply pipes, and the raising air inlets correspond to the sand storage area. The grinding zone closest to the unit and the second closest to the sand inlet is provided with a sand inlet symmetrically, and the symmetrically arranged sand inlets are respectively combined with a sand inlet device.

申請專利範圍第1項所述之鑄造廢砂回收結構，其中各該粉碎區底部分別設有一清潔孔。 In the foundry waste sand recycling structure described in item 1 of the scope of patent application, a clean hole is provided at the bottom of each crushing zone.

如申請專利範圍第1或6項所述之鑄造廢砂回收結構，其中該進砂孔與連通同一粉碎區的該粉碎進風孔相通。 According to the foundry waste sand recovery structure described in item 1 or 6 of the scope of patent application, the sand inlet hole communicates with the crushing air inlet hole communicating with the same crushing zone.

如申請專利範圍第1項所述之鑄造廢砂回收結構，其中該回收單元之回收空間內設有一支撐板、一擋板及一導引板，該支撐板設置於對應該出砂孔下側，該擋板設置於該支撐板上方，該導引板設置於該支撐板下方。 For example, the foundry waste sand recycling structure described in item 1 of the scope of patent application, wherein a supporting plate, a baffle and a guide plate are arranged in the recycling space of the recycling unit, and the supporting plate is arranged on the lower side of the corresponding sand hole , The baffle is arranged above the support plate, and the guide plate is arranged below the support plate.