Metal slag separation device for metal casting

Abstract

The present invention relates to the technical field of metal slag separation, and in particular to a metal slag separation device for metal casting, comprising a stirring barrel, a rotating assembly and a stirring blade; the stirring barrel is connected to a rotating assembly; the stirring blade is connected to the rotating assembly; the stirring blade is driven to rotate by the rotating assembly; a plurality of through slots are provided on the stirring barrel; a heating device is connected to the stirring barrel; a plurality of collectors are arranged outside the stirring barrel; each collector corresponds to an adjacent through slot; a water inlet pipe is connected to the stirring barrel; the other end of the water inlet pipe is connected to a water heater. The casting sand blocks staying there are blocked by an arc baffle to prevent the vortex generated by the water flow from driving the casting sand blocks to the vortex center, so that the casting sand blocks are smoothly blocked by the arc baffle at the shrinkage of the deceleration space, so that when the deceleration space is fed, the casting sand blocks can be ensured to enter smoothly, and the casting sand blocks in the deceleration space can be quickly supplemented, thereby improving the crushing efficiency of the deceleration space for the casting sand blocks.

Description

Technical Field

[0001] The present invention relates to the technical field of metal scrap separation, and in particular to a metal scrap separation device for metal casting. Background Art

[0002] Foundry sand is one of the indispensable materials in the metal casting process and is mainly used to make casting molds.

[0003] Foundry sand usually needs to be reused when used. Therefore, after the foundry sand is used, it needs to be separated to separate the metal debris therein. During use, the existing foundry sand separation device first uses a crusher to crush larger foundry sand blocks, and then the crushed foundry sand blocks are screened through a screening machine. Unqualified large particles will return to the crushing process and be crushed again until the required fineness is reached. Since resin is usually added as a binder when used, resin will be separated as an impurity in the foundry sand blocks during the crushing process. During the crushing process of the foundry sand blocks, in order to facilitate the crushing of the foundry sand blocks, the resin in the foundry sand blocks is usually softened by heating, and the resin is changed from a solid state to a colloidal state before the foundry sand blocks are crushed. The prior art usually performs the above two steps separately, which makes the foundry sand blocks inconvenient in the crushing process and has low efficiency. In addition, it is difficult to clean the colloidal resin, which is not convenient for the crushing of the foundry sand blocks. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art that the crushing process of the foundry sand block is inconvenient, the efficiency is low, the colloidal resin is difficult to clean, and the crushing of the foundry sand block is not convenient, the present invention provides a metal slag separation device for metal casting.

[0005] The technical solution of the present invention is: a metal slag separation device for metal casting, comprising a stirring barrel, a rotating assembly and a stirring blade; the stirring barrel is connected to the rotating assembly; the stirring blade is connected to the rotating assembly; the stirring blade is driven to rotate by the rotating assembly; a plurality of through slots are provided on the stirring barrel; a heating device is connected to the stirring barrel; a plurality of collectors are arranged outside the stirring barrel; each collector corresponds to an adjacent through slot; a water inlet pipe is connected to the stirring barrel; the other end of the water inlet pipe is connected to the water heater; it also includes an extrusion plate, a compression limiter assembly, a rolling plate, a blocking assembly and a filtering assembly; a plurality of extrusion plates for extruding casting sand blocks are connected to the stirring barrel; each extrusion plate is provided with a first A rolling surface; a guide surface is provided on each extrusion plate; a filter groove is provided on each extrusion plate; each filter groove is connected to an adjacent through groove; each extrusion plate is connected to a compression limit assembly; each compression limit assembly is connected to a rolling plate for rolling casting sand blocks; a second rolling surface is provided on each rolling plate; a speed reduction space is formed between the extrusion plates, and the speed reduction space is configured as an arc-shaped channel with a gradually increasing width, and the side close to the adjacent filter groove is flared and the other side is contracted; a blocking assembly for blocking stirring water is connected to the mixing barrel; a filter assembly for filtering casting sand is connected to the filter groove on each extrusion plate.

[0006] More preferably, the rotating assembly includes a servo motor and a connecting rod; the servo motor is fixedly connected to the upper side of the stirring barrel; the connecting rod is connected to the output end of the servo motor; and the lower side of the connecting rod is fixedly connected to the stirring blade.

[0007] More preferably, the compression limit assembly includes a limit rod and an elastic member; each extrusion plate is fixedly connected to a limit rod for limiting the rolling plate; the other end of each limit rod passes through the adjacent rolling plate; each extrusion plate is fixedly connected to an elastic member; each elastic member is located on the outside of the adjacent limit rod; the other end of each elastic member is fixedly connected to the rolling plate.

[0008] More preferably, the blocking assembly includes a driving member and a blocking ring; a plurality of driving members are fixedly connected to the mixing barrel; the telescopic ends of the plurality of driving members are commonly fixedly connected to the blocking ring; and the blocking ring closes all the through grooves.

[0009] More preferably, the filter assembly includes a blocking plate and a filter screen; a plurality of blocking plates for filtering the casting sand blocks are fixedly connected in the filter groove on each extrusion plate, and the blocking plates are made of elastic metal sheet material; the blocking plates on each extrusion plate are commonly fixedly connected with a filter screen for filtering the casting sand and resin, and the filter screen is made of elastic metal wire material.

[0010] More preferably, a plurality of convex points 1 are arranged on the side of each extrusion plate in contact with the adjacent rolling plate, and a plurality of convex points 2 are arranged on the side of each rolling plate in contact with the adjacent extrusion plate.

[0011] More preferably, it also includes an arc-shaped baffle; each rolling plate is fixed with an arc-shaped baffle for preventing the casting sand from moving toward the center of the mixing barrel; and one end of each arc-shaped baffle away from the rolling plate is bent toward the center of the mixing barrel.

[0012] More preferably, each guide surface is configured as a slope with one end located at the shrinkage of the speed reduction space being higher than one end located at the expansion of the speed reduction space.

[0013] More preferably, a guide block is further included; each extrusion plate is fixedly connected with a guide block.

[0014] More preferably, a hot air circulation component is also included, which includes an exhaust fan, a first annular tube, an air inlet pipe, an air outlet pipe, a second annular tube, a connecting pipe and a cooler; an exhaust fan for extracting water vapor in the mixing barrel is fixedly connected to the mixing barrel; an exhaust pipe is connected to the lower side of the exhaust fan, and the exhaust pipe passes through the upper side of the mixing barrel; the first annular tube is connected to the outer side of the exhaust fan; a plurality of air inlet pipes are connected to the first annular tube; each extrusion plate is configured as a hollow structure, and the extrusion plate is made of heat-conducting material; the other end of each air inlet pipe is connected to the adjacent extrusion plate; each extrusion plate is connected to an air outlet pipe; the other ends of all the air outlet pipes are commonly connected to the second annular tube; the right side of the second annular tube is connected to a connecting pipe; a cooler for condensing air flow into water is fixedly connected to the mixing barrel; the other end of the connecting pipe is connected to the cooler; the lower side of the cooler is connected to a water outlet pipe, and the water outlet pipe passes through the upper side of the mixing barrel.

[0015] The present invention has the following advantages: the present invention realizes that the second rolling surface is displaced from the first rolling surface by displacing the rolling plate with the extrusion plate during the movement, thereby kneading the casting sand block squeezed onto the first rolling surface by the second rolling surface, thereby improving the crushing effect of the casting sand block;

[0016] By making the foundry sand and foundry sand blocks in the deceleration space appear stratified, the broken large foundry sand blocks gradually fall downward onto the guide surface, and then the broken large foundry sand blocks are secondary crushed by the rolling plate and the extrusion plate, thereby further improving the crushing effect of the foundry sand blocks;

[0017] The arc-shaped baffle is used to block the foundry sand blocks that stay there, so as to prevent the vortex generated by the water flow from driving the foundry sand blocks to the vortex center, so that the foundry sand blocks are smoothly blocked by the arc-shaped baffle at the shrinkage of the deceleration space, so as to ensure that the foundry sand blocks can enter smoothly when the deceleration space is fed, so as to realize the rapid replenishment of the foundry sand blocks in the deceleration space and improve the crushing efficiency of the foundry sand blocks in the deceleration space;

[0018] By heating the extrusion plate, the resin in the casting sand block is more easily softened after the casting sand block is close to the extrusion plate, thereby improving the crushing effect of the casting sand block. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the metal slag separation device for metal casting of the present invention;

[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the stirring barrel, stirring blades and extrusion plate combination of the present invention, wherein the stirring barrel is a cross-sectional view;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the filter assembly of the present invention;

[0022] Figure 4 It is a front view of the combination of the compression limit assembly, the extrusion plate and the rolling plate of the present invention;

[0023] Figure 5 It is a schematic diagram of the combined three-dimensional structure of the extrusion plate, the rolling plate, the baffle plate and the guide block of the present invention, wherein the rolling plate is a cross-sectional view;

[0024] Figure 6 It is a top view of the combination of the compression limit assembly, the extrusion plate and the rolling plate of the present invention;

[0025] Figure 7 It is a schematic diagram of the three-dimensional structure of the stirring barrel, hot air circulation component and extrusion plate combination of the present invention, wherein the stirring barrel is a cross-sectional view.

[0026] Marked in the figure: 1-mixing barrel, 1001-through groove, 2-mixing blade, 3-extrusion plate, 3001-first rolling surface, 3002-guide surface, 3003-filter tank, 4-rolling plate, 4001-second rolling surface, 101-servo motor, 102-connecting rod, 103-limiting rod, 104-elastic member, 201-driving member, 202-blocking ring, 301-blocking sheet, 302-filter screen, 401-arc baffle, 501-guide block, 601-vacuum pump, 602-first annular pipe, 603-inlet pipe, 604-outlet pipe, 605-second annular pipe, 606-connecting pipe, 607-cooler. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0028] Example 1

[0029] like Figure 1-Figure 6As shown, a metal slag separation device for metal casting includes a mixing barrel 1, a rotating assembly and a mixing blade 2; the mixing barrel 1 is connected to the rotating assembly; the mixing blade 2 is connected to the rotating assembly; the mixing blade 2 is driven to rotate by the rotating assembly; four through grooves 1001 are opened on the mixing barrel 1; the mixing barrel 1 is connected to a heating device; four collectors are arranged outside the mixing barrel 1; each collector corresponds to an adjacent through groove 1001 one by one; the mixing barrel 1 is connected to a water inlet pipe; the other end of the water inlet pipe is connected to a water heater;

[0030] It also includes an extrusion plate 3, a compression limit assembly, a rolling plate 4, a blocking assembly and a filtering assembly; four extrusion plates 3 arranged in a ring array are connected to the mixing barrel 1; each extrusion plate 3 is provided with a first rolling surface 3001; each extrusion plate 3 is provided with a guide surface 3002; each extrusion plate 3 is provided with a filter groove 3003; each filter groove 3003 is connected to the adjacent through groove 1001; each extrusion plate 3 is connected to a compression limit assembly; each compression limit assembly is connected to a rolling plate 4; each rolling plate 4 is provided with a second rolling surface 4001; a speed reduction space is formed between the extrusion plate 3 and the rolling plate 4, such as Figure 5 As shown, the deceleration space is set as an arc-shaped channel with gradually increasing width, and the side close to the adjacent filter tank 3003 is expanded and the other side is contracted; a blocking component is connected to the mixing barrel 1; and a filter component is connected to the filter tank 3003 on each extrusion plate 3.

[0031] The rotating assembly includes a servo motor 101 and a connecting rod 102 ; the servo motor 101 is fixedly connected to the upper side of the mixing barrel 1 ; the connecting rod 102 is connected to the output end of the servo motor 101 ; and the lower side of the connecting rod 102 is fixedly connected to the mixing blade 2 .

[0032] The compression limit assembly includes a limit rod 103 and an elastic member 104; each extrusion plate 3 is fixedly connected to a limit rod 103; the other end of each limit rod 103 passes through the adjacent rolling plate 4; each extrusion plate 3 is fixedly connected to an elastic member 104, and the elastic member 104 is a spring; each elastic member 104 is located on the outside of the adjacent limit rod 103; the other end of each elastic member 104 is fixedly connected to the rolling plate 4.

[0033] The blocking assembly includes a driving member 201 and a blocking ring 202; two symmetrical driving members 201 are fixed to the mixing barrel 1, and the driving members 201 are electric push rods; the telescopic ends of the two driving members 201 are fixedly connected to a blocking ring 202; the blocking ring 202 closes all the through grooves 1001.

[0034] The filter assembly includes a blocking sheet 301 and a filter screen 302; a plurality of blocking sheets 301 are fixedly connected in the filter groove 3003 on each extrusion plate 3, and the blocking sheets 301 are made of elastic metal sheet material; the blocking sheets 301 on each extrusion plate 3 are commonly fixedly connected to a filter screen 302, and the filter screen 302 is made of elastic metal wire material.

[0035] The present invention pours the casting sand block into the stirring barrel 1, adds hot water to soften the resin on the casting sand block, and then rotates the stirring blade 2 to break the casting sand block, thereby solving the problem that the resin softening and the casting sand block cannot be carried out simultaneously. In the above process, the problem that the colloidal resin is difficult to clean and the resin separation is not convenient is solved. The specific process is as follows:

[0036] First, the staff pours the foundry sand into the mixing barrel 1 from the feed port on the mixing barrel 1. After the discharge is completed, hot water is transmitted to the mixing barrel 1 along the pipeline, and the water is continuously discharged into the mixing barrel 1. At this time, the blocking ring 202 closes the through groove 1001, and the hot water cannot flow out of the through groove 1001. Then the water supply is stopped, and the heating device on the mixing barrel 1 is turned on to heat the hot water in the mixing barrel 1 to prevent the hot water temperature from decreasing and affecting the softening effect on the resin. At the same time, the servo motor 101 is started, and the connecting rod 102 is driven to rotate counterclockwise based on the view from top to bottom, thereby driving the stirring blade 2 to rotate counterclockwise, thereby driving the hot water to rotate, and then the sand blocks in the mixing barrel 1 are separated by the stirring blade 2. In the process, the dust on the foundry sand is cleaned by hot water, which is conducive to the subsequent reuse of the foundry sand.

[0037] Subsequently, during the rotation of the mixing blade 2, the extrusion plate 3 causes the casting sand to move toward the inner wall of the mixing barrel 1 under the action of the centrifugal force generated in the water, and moves along the inner wall of the mixing barrel 1 under the action of the water flow, so that the casting sand enters the speed reduction space from the constriction of the speed reduction space. When the mixing blade 2 contacts the rolling plate 4 during the rotation, the mixing blade 2 will squeeze the rolling plate 4, compressing the elastic member 104, so that the rolling plate 4 moves along the limit rod 103, so that the second rolling surface 4001 moves toward the first rolling surface 3 001 moves, thereby causing the foundry sand entering the deceleration space to be squeezed onto the first rolling surface 3001 by the second rolling surface 4001, and because the limiting rod 103 is placed obliquely, during the movement of the rolling plate 4 along the limiting rod 103, the rolling plate 4 will be misaligned with the extrusion plate 3, thereby causing the second rolling surface 4001 to be misaligned with the first rolling surface 3001, thereby producing a kneading effect on the foundry sand block squeezed onto the first rolling surface 3001 by the second rolling surface 4001, thereby achieving the casting The sand blocks are crushed. At this time, since the resin serving as the casting sand binder is softened under the action of hot water, the casting sand blocks in the casting sand will be crushed into casting sand under the rubbing between the second rolling surface 4001 and the first rolling surface 3001, so that the resin is separated from the casting sand and the metal debris. Subsequently, the casting sand, softened resin, metal debris and the casting sand blocks that have not yet been crushed pass through the filter trough 3003 driven by the water flow, and the remaining unbroken casting sand blocks are blocked by the adjacent blocking sheets 301 to prevent the casting sand blocks from being blocked on the filter screen 302. At the same time, the casting sand, softened resin and metal debris pass through the channel between the blocking sheets 301 and contact the filter screen 302. The casting sand, softened resin and metal debris pass through the filter screen 302, so that the separated casting sand, softened resin and metal debris are separated and filtered from the unbroken casting sand blocks through the filter screen 302, thereby achieving the effect of breaking and separating, gradually reducing the material in the mixing barrel 1, thereby accelerating the crushing effect and improving the crushing efficiency.

[0038] At the same time, since the hot water enters from the contraction of the deceleration space and is discharged from the expansion of the deceleration space, and since the deceleration space is set as an arc-shaped channel with a gradually increasing width, the water flow velocity in the deceleration space is gradually reduced. Since the weight of the large casting sand blocks remaining after crushing is greater than that of the casting sand and the softening resin, the sedimentation rate of the large casting sand blocks remaining after crushing is greater than that of the casting sand and the softening resin, and the casting sand, softening resin and the large casting sand blocks remaining after crushing in the deceleration space are layered, so that the casting sand and softening resin are located at the upper part of the deceleration space, and the remaining large casting sand blocks after crushing are located at the upper part of the deceleration space. The remaining large casting sand blocks are located at the bottom of the deceleration space, so that the crushed large casting sand blocks gradually fall downward to the guide surface 3002. It is worth noting that the filter screen 302 is arranged at the upper left part of the extrusion plate 3, so that the crushed large casting sand blocks can still be kneaded by the rolling plate 4 and the extrusion plate 3 after falling on the guide surface 3002, thereby realizing the secondary crushing of the crushed large casting sand blocks. Compared with the prior art, when a large number of casting sand blocks are crushed, the prior art realizes the simple treatment of the casting sand blocks by simple softening and stirring, and the crushing effect is poor. At the same time, during the crushing During the process, it is impossible to quickly separate the crushed casting sand blocks from the unbroken casting sand blocks, resulting in low crushing efficiency in the prior art and inability to achieve secondary crushing. Subsequently, after the second rolling surface 4001 is close to the first rolling surface 3001, the second rolling surface 4001 contacts the blocking sheet 301. As the second rolling surface 4001 moves out of position, the second rolling surface 4001 applies pressure to the blocking sheet 301, causing the blocking sheet 301 to gradually deform, thereby causing the filter screen 302 to deform. Subsequently, after the stirring blade 2 is separated from the rolling plate 4, the elastic member 104 gradually returns to its original shape. shape, thereby driving the rolling plate 4 to gradually return to its original shape, so that the blocking piece 301 is separated from the squeezing of the rolling plate 4, so that the blocking piece 301 is gradually restored to its original shape, so that the filter screen 302 is restored to its original shape, and the aperture of the filter screen 302 fluctuates, so that the small casting sand blocks on the mesh of the filter screen 302 are separated from the mesh of the filter screen 302, and the broken small casting sand blocks are prevented from clogging the mesh of the filter screen 302, thereby improving the filtering effect of the filter screen 302 on the casting sand, and then, after the casting sand blocks are broken in the speed reduction space, the casting sand blocks flowing out of the speed reduction space are moved to the next speed reduction space driven by the water flow.

[0039] In the above process, when the foundry sand block begins to be crushed, the synchronously controlled driving member 201 moves upward, thereby driving the blocking ring 202 to move upward and opening the through groove 1001. At this time, the stirring blade 2 continues to rotate, and the water heater simultaneously transmits hot water along the water pipe to the stirring barrel 1 until the crushing stops. Driven by the water flow, the foundry sand, softened resin and metal debris remaining in the through groove 1001 will flow out of the through groove 1001 with the water flow, and then fall into the collector, so as to prepare for the subsequent further separation of the foundry sand, softened resin and metal debris, thereby realizing the crushing and separation of the foundry sand block.

[0040] A plurality of convex points 1 are arranged on the side of each extrusion plate 3 that contacts the adjacent rolling plate 4, and a plurality of convex points 2 are arranged on the side of each rolling plate 4 that contacts the adjacent extrusion plate 3; in the process of kneading the casting sand block by the extrusion plate 3 and the rolling plate 4, the roughness of the surface of the extrusion plate 3 and the rolling plate 4 is increased by the convex points 1 and the convex points 2 respectively, thereby increasing the friction force of the surface of the extrusion plate 3 and the rolling plate 4, and further increasing the kneading effect of the extrusion plate 3 and the rolling plate 4 on the casting sand block.

[0041] Example 2

[0042] On the basis of Example 1, Figure 5 and Figure 6 As shown, it also includes an arc-shaped baffle 401; each rolling plate 4 is fixedly connected to an arc-shaped baffle 401; the end of each arc-shaped baffle 401 away from the rolling plate 4 is bent toward the center of the mixing barrel 1; in the process of the rolling plate 4 moving toward the extrusion plate 3, there is a short period when the casting sand block cannot enter the deceleration space. However, under the action of the centrifugal force of the water flow, when the casting sand block moves to the constriction of the deceleration space, there is a problem that the casting sand block directly follows the water flow to cross the rolling plate 4 close to the center of the mixing barrel 1. As the casting sand blocks in the mixing barrel 1 are continuously broken and reduced, there may be a problem that the casting sand blocks cannot enter the deceleration space, resulting in the inability of the deceleration space. The method is to continuously realize the crushing function, or there is a problem that the casting sand blocks cannot enter the speed reduction space all the time, and they always follow the water flow and pass over the rolling plate 4 close to the center of the mixing barrel 1. Therefore, in order to improve the crushing efficiency and avoid the above situation affecting the crushing effect, the casting sand blocks staying here are blocked by the arc baffle 401 to prevent the eddy current generated by the water flow from driving the casting sand blocks to the center of the eddy current, so that the casting sand blocks are successfully blocked by the arc baffle 401 at the shrinkage of the speed reduction space, so that when the speed reduction space is fed, it is ensured that the casting sand blocks can enter smoothly to achieve rapid replenishment of the casting sand blocks in the speed reduction space, thereby improving the crushing efficiency of the speed reduction space for the casting sand blocks.

[0043] Example 3

[0044] On the basis of Example 1, Figure 5 and Figure 6 As shown, each guide surface 3002 is configured to be a slope with one end located at the shrinkage of the speed reduction space being higher than the other end located at the expansion of the speed reduction space; during the kneading process of the extrusion plate 3 and the rolling plate 4 on the casting sand block, the casting sand block initially falling on the guide surface 3002 is quickly moved along the guide surface 3002 to the expansion of the speed reduction space, thereby preventing the casting sand block from staying on the guide surface 3002, resulting in low feeding efficiency and reduced crushing efficiency.

[0045] It also includes a guide block 501; each extrusion plate 3 is fixedly connected to a guide block 501; when the casting sand block enters the deceleration space from the shrinkage of the deceleration space, the casting sand block is guided by the guide block 501 to prevent the casting sand block from hitting the edges of the extrusion plate 3 and the rolling plate 4, making it difficult to enter the deceleration space, thereby improving the guiding effect of the casting sand block. At the same time, when the casting sand block temporarily stays at the shrinkage of the deceleration space, the casting sand block is supported by the guide block 501 to prevent the casting sand block from falling downward and making it difficult to enter the deceleration space when the deceleration space absorbs water, thereby improving the rapid replenishment effect of the casting sand block in the deceleration space.

[0046] Example 4

[0047] On the basis of Example 1, Figure 1 and Figure 7 As shown, it also includes a hot air circulation component, which includes an exhaust fan 601, a first annular tube 602, an air inlet pipe 603, an air outlet pipe 604, a second annular tube 605, a connecting pipe 606 and a cooler 607; the exhaust fan 601 is fixedly connected to the mixing barrel 1; the exhaust fan 601 is connected to an exhaust pipe at the lower side, and the exhaust pipe runs through the upper side of the mixing barrel 1; the exhaust fan 601 is connected to the first annular tube 602 at the outer side; the first annular tube 602 is connected to four air inlet pipes 603 arranged in a circular array; each extrusion plate 3 are all set to be hollow structures, and the extrusion plate 3 is made of heat-conducting material; the other end of each air inlet pipe 603 is connected to the adjacent extrusion plate 3; each extrusion plate 3 is connected to an air outlet pipe 604; the other ends of all the air outlet pipes 604 are commonly connected to the second annular pipe 605; the right side of the second annular pipe 605 is connected to a connecting pipe 606; a cooler 607 is fixedly connected to the mixing barrel 1; the other end of the connecting pipe 606 is connected to the cooler 607; the lower side of the cooler 607 is connected to a water outlet pipe, and the water outlet pipe runs through the upper side of the mixing barrel 1.

[0048] During the rotation of the mixing blade 2 in the mixing barrel 1, since the water in the mixing barrel 1 is hot water, a large amount of water vapor will be generated and gathered at the upper inner side of the mixing barrel 1. At this time, the vacuum pump 601 is started, so that the water vapor in the mixing barrel 1 enters the vacuum pump 601 along the vacuum pipe, and then enters the first annular pipe 602, and then enters the extrusion plate 3 along the air inlet pipe 603, thereby heating the extrusion plate 3. After the casting sand block is close to the extrusion plate 3, the resin in the casting sand block is easier to soften, thereby improving the crushing effect of the casting sand block. Subsequently, the water vapor entering the extrusion plate 3 enters the second annular pipe 605 along the air outlet pipe 604, and then enters the cooler 607 along the connecting pipe 606 to be cooled into water for recycling, thereby realizing the recycling of water.

[0049] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the spirit of the present invention.

Claims

1. A metal slag separation device for metal casting, comprising a stirring barrel (1), a rotating assembly and a stirring blade (2); the stirring barrel (1) is connected to the rotating assembly; the stirring blade (2) is connected to the rotating assembly; the stirring blade (2) is driven to rotate by the rotating assembly; a plurality of through grooves (1001) are provided on the stirring barrel (1); a heating device is connected to the stirring barrel (1); a plurality of collectors are arranged outside the stirring barrel (1); each collector corresponds to an adjacent through groove (1001); a water inlet pipe is connected to the stirring barrel (1); the other end of the water inlet pipe is connected to a water heater; the characteristics are as follows: The invention also comprises an extrusion plate (3), a compression stopper assembly, a rolling plate (4), a blocking assembly and a filtering assembly; a plurality of extrusion plates (3) for extruding the casting sand block are connected in the mixing barrel (1); each extrusion plate (3) is provided with a first rolling surface (3001); each extrusion plate (3) is provided with a guide surface (3002); each extrusion plate (3) is provided with a filtering groove (3003); each filtering groove (3003) is connected to an adjacent through groove (1001); each extrusion plate (3) is connected with a compression stopper assembly; each A rolling plate (4) for rolling the foundry sand block is connected to each of the shrinkage limiter components; each rolling plate (4) is provided with a second rolling surface (4001); a speed reduction space is formed between the extrusion plate (3) and the rolling plate (4), the speed reduction space being configured as an arc-shaped channel with a gradually increasing width, and having an expanded shape on one side close to the adjacent filter slot (3003) and a contracted shape on the other side; a blocking component for blocking stirring water is connected to the mixing barrel (1); a filter component for filtering the foundry sand is connected to the filter slot (3003) on each of the extrusion plates (3); The compression limit assembly comprises a limit rod (103) and an elastic member (104); each extrusion plate (3) is fixedly connected to a limit rod (103) for limiting the rolling plate (4); the other end of each limit rod (103) passes through the adjacent rolling plate (4); each extrusion plate (3) is fixedly connected to an elastic member (104); each elastic member (104) is located outside the adjacent limit rod (103); the other end of each elastic member (104) is fixedly connected to the rolling plate (4); The filter assembly comprises a blocking sheet (301) and a filter screen (302); a plurality of blocking sheets (301) for filtering the casting sand blocks are fixedly connected in the filter groove (3003) on each extrusion plate (3), and the blocking sheets (301) are made of elastic metal sheet material; the blocking sheets (301) on each extrusion plate (3) are commonly fixedly connected with a filter screen (302) for filtering the casting sand and resin, and the filter screen (302) is made of elastic metal wire material; Each guide surface (3002) is configured as a slope with one end located at the shrinkage of the speed reduction space being higher than one end located at the expansion of the speed reduction space.

2. The metal slag separation device for metal casting according to claim 1, characterized in that: The rotating assembly comprises a servo motor (101) and a connecting rod (102); the servo motor (101) is fixedly connected to the upper side of the stirring barrel (1); the output end of the servo motor (101) is connected to the connecting rod (102); and the lower side of the connecting rod (102) is fixedly connected to the stirring blade (2).

3. The metal slag separation device for metal casting according to claim 2, characterized in that: The blocking assembly comprises a driving member (201) and a blocking ring (202); a plurality of driving members (201) are fixedly connected to the mixing barrel (1); the telescopic ends of the plurality of driving members (201) are commonly fixedly connected to the blocking ring (202); and the blocking ring (202) closes all the through grooves (1001).

4. The metal slag separation device for metal casting according to claim 1, characterized in that: A plurality of convex points 1 are provided on the side of each extrusion plate (3) that contacts the adjacent rolling plate (4), and a plurality of convex points 2 are provided on the side of each rolling plate (4) that contacts the adjacent extrusion plate (3).

5. The metal slag separation device for metal casting according to claim 4, characterized in that: It also includes an arc-shaped baffle (401); each rolling plate (4) is fixedly connected to an arc-shaped baffle (401) for preventing the casting sand from moving toward the center of the mixing barrel (1); and one end of each arc-shaped baffle (401) away from the rolling plate (4) is bent toward the center of the mixing barrel (1).

6. The metal slag separation device for metal casting according to claim 4, characterized in that: It also includes a guide block (501); each extrusion plate (3) is fixedly connected to a guide block (501).

7. The metal slag separation device for metal casting according to claim 6, characterized in that: The mixing drum (1) further comprises a hot air circulation component, which comprises an exhaust fan (601), a first annular tube (602), an air inlet pipe (603), an air outlet pipe (604), a second annular tube (605), a connecting pipe (606) and a cooler (607); an exhaust fan (601) for extracting water vapor from the mixing drum (1) is fixedly connected to the mixing drum (1); the exhaust fan (601) is connected to the lower side thereof, and the exhaust fan runs through the upper side of the mixing drum (1); the exhaust fan (601) is connected to the first annular tube (602) on the outer side thereof; the first annular tube (602) is connected to a plurality of air inlet pipes (603); each extrusion plate (3 ... All are configured as hollow structures, and the extrusion plates (3) are made of heat-conducting materials; the other end of each air inlet pipe (603) is connected to the adjacent extrusion plate (3); each extrusion plate (3) is connected to an air outlet pipe (604); the other ends of all the air outlet pipes (604) are commonly connected to a second annular pipe (605); the right side of the second annular pipe (605) is connected to a connecting pipe (606); a cooler (607) for condensing airflow into water is fixedly connected to the mixing barrel (1); the other end of the connecting pipe (606) is connected to the cooler (607); the lower side of the cooler (607) is connected to a water outlet pipe, and the water outlet pipe runs through the upper side of the mixing barrel (1).

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