Reclaimed sand middle transition warehouse and shakeout regeneration work part

Abstract

The reclaimed sand intermediate transition warehouse comprises a washing sand warehouse and a mechanical reclaimed sand warehouse, an overflow plate is arranged between the washing sand warehouse and the mechanical reclaimed sand warehouse, used sand is accumulated in the washing sand warehouse after entering the washing sand warehouse, and when the accumulated used sand is higher than the overflow plate, the mechanical reclaimed sand warehouse is separated from the washing sand warehouse. Old sand can enter the mechanical regeneration sand bin through the overflow plate; an overflow plate is arranged to divide a reclaimed sand middle transition warehouse with only one feed port into two storage chambers, the two storage chambers can independently supply sand to the outside, and as the sand warehouse is compactly arranged, upstream and downstream equipment related to sand storage can be further compactly arranged around the sand warehouse, so that the occupied area of the equipment is reduced, and the layout of the equipment is optimized; through the overflow communication arrangement, rapid series connection of one inlet, two warehouses and two outlets is achieved, the sand conveying route can be effectively simplified, the arrangement amount of conveying equipment can be reduced, and the control difficulty of the conveying equipment can be simplified.

Description

Technical Field

[0001] The present application relates to the field of waste sand regeneration equipment, in particular to a regenerated sand intermediate transition tank and a falling sand regeneration unit. Background Art

[0002] Modeling sand is an important material used in the preparation of castings. Modeling sand is used to construct sand molds. By pouring metal solution into the sand mold, castings can be obtained. In order to ensure the stability of the sand mold and prevent the sand mold from deforming during the pouring process, a variety of chemical reagents need to be added to the sand before molding. Sand can be recycled. Before reuse, the modeling sand needs to be regenerated to remove the chemical reagent residues originally attached to the sand particles.

[0003] There are many ways to regenerate old sand, such as mechanical rubbing, incineration, humidification, etc. Different treatment methods can not only deal with different chemical reagent residues in a targeted manner, but also achieve different degrees of regeneration effects. Generally, factories will selectively process according to process needs and costs. Therefore, there will be multiple sand warehouses in the factory, and different sand warehouses are used to supply old sand to different regeneration equipment. This design will affect the layout of the factory and occupy a large amount of factory space. Summary of the invention

[0004] The purpose of the present application is to overcome the deficiencies in the prior art and to provide a regenerated sand intermediate transition tank and a falling sand regeneration unit.

[0005] To achieve the above technical objectives, the present application provides a regenerated sand intermediate transition tank, including: a water-washed sand tank for receiving old sand; a mechanical regenerated sand tank connected to the water-washed sand tank, and an overflow plate is provided between the mechanical regenerated sand tank and the water-washed sand tank; after the old sand enters the water-washed sand tank, it accumulates in the water-washed sand tank; when the accumulated old sand is higher than the overflow plate, the old sand can enter the mechanical regenerated sand tank through the overflow plate.

[0006] Furthermore, the volume of the water-washed sand storage is smaller than the volume of the mechanically regenerated sand storage.

[0007] Furthermore, the regenerated sand intermediate transition tank also includes a support, and the water-washed sand tank and the mechanically regenerated sand tank are arranged on the support and suspended in the air through the support.

[0008] Furthermore, the bottom of the water-washed sand storage and / or the mechanically regenerated sand storage is arranged in a funnel shape.

[0009] Furthermore, a discharge port is provided at the bottom of the water-washed sand storage and / or the mechanically regenerated sand storage, and a quantitative feeding mechanism is provided at the discharge port.

[0010] Furthermore, a detection component is provided in the water-washed sand storage and / or the mechanically regenerated sand storage, and the detection component is used to detect the storage conditions in the storage.

[0011] Furthermore, the tops of the water-washed sand storage and the mechanically regenerated sand storage are flush, and a guardrail is provided on the top of the storage.

[0012] The present application also provides a sand falling regeneration section, including the above-mentioned regenerated sand intermediate transition tank, and also includes: a sand falling crushing system, arranged upstream of the regenerated sand intermediate transition tank, for destroying the sand mold and obtaining old sand; a first transporter, connected to the sand falling crushing system and the regenerated sand intermediate transition tank, for inputting the old sand into the regenerated sand intermediate transition tank.

[0013] Furthermore, the falling sand regeneration section also includes: a second transporter connected to the mechanical regeneration sand reservoir for outputting the sand in the mechanical regeneration sand reservoir; a wet regeneration system located downstream of the water-washed sand reservoir for wet regeneration of the sand in the water-washed sand reservoir.

[0014] Furthermore, a water tank is provided in the water-washed sand reservoir, and the water tank is used to store the solution for wet regeneration; when the water-washed sand reservoir supplies sand to the wet regeneration system, the sand and the solution for wet regeneration are mixed and enter the wet regeneration system.

[0015] The present application provides a regenerated sand intermediate transition tank, comprising a water-washed sand tank and a mechanically regenerated sand tank. An overflow plate is arranged between the water-washed sand tank and the mechanically regenerated sand tank. After the old sand enters the water-washed sand tank, it is accumulated in the water-washed sand tank. When the accumulated old sand is higher than the overflow plate, the old sand can enter the mechanically regenerated sand tank through the overflow plate. By arranging the overflow plate, the regenerated sand intermediate transition tank having only one feed port is divided into two storage chambers. The two storage chambers can independently supply sand to the outside. Due to the compact arrangement of the sand tank, the upstream and downstream equipment related to the sand storage can be further compactly arranged around the sand tank, thereby reducing the equipment footprint and optimizing the equipment layout. Through the overflow connection arrangement, a rapid series connection of one inlet, two tanks and two outlets is realized, which can effectively simplify the sand transportation route, reduce the layout of the transportation equipment, and simplify the control difficulty of the transportation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of a regenerated sand intermediate transition tank provided in this application;

[0017] Figure 2 A structural schematic diagram of a sand-falling regeneration unit provided in this application. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0019] The present application provides a regenerated sand intermediate transition tank, including: a water-washed sand tank 11, for receiving old sand; a mechanical regenerated sand tank 12, connected to the water-washed sand tank 11, and an overflow plate 13 is provided between the mechanical regenerated sand tank 12 and the water-washed sand tank 11; after the old sand enters the water-washed sand tank 11, it accumulates in the water-washed sand tank 11; when the accumulated old sand is higher than the overflow plate 13, the old sand can enter the mechanical regenerated sand tank 12 through the overflow plate 13.

[0020] For details, please refer to Figure 1 In the illustrated embodiment, two storage chambers are provided in the intermediate transition reservoir for regenerated sand, one of which is a sand washing reservoir 11, and the other is a mechanically regenerated sand reservoir 12, and an overflow plate 13 is provided between the two storage chambers.

[0021] Continue to refer to Figure 1 A feed port 10a is provided on the intermediate transition reservoir of the regenerated sand, and the feed port 10a is connected to the water-washed sand reservoir 11, and the old sand can enter the water-washed sand reservoir 11 through the feed port 10a.

[0022] Continue to refer to Figure 1 Two discharge ports 10b and 10c are provided on the intermediate transition tank of the regenerated sand, one of which 10b is connected to the water-washed sand tank 11, and the other discharge port 10c is connected to the mechanically regenerated sand tank 12; the sand in the water-washed sand tank 11 can flow downstream through the discharge port 10b, and the sand in the mechanically regenerated sand tank 12 can flow downstream through the discharge port 10c.

[0023] The overflow plate 13 is provided with an overflow hole, or the overflow plate 13 is not connected to the top (i.e., there is a gap between the overflow plate 13 and the top of the intermediate transition tank of the regenerated sand). When the sand is fed in, the old sand accumulates in the water-washed sand tank 11 and fills the water-washed sand tank 11 first; when the accumulated old sand reaches the overflow hole or exceeds the overflow plate 13, the old sand can pass through the overflow plate 13 and enter the mechanical regenerated sand tank 12.

[0024] By setting the overflow plate 13, the storage bin with only one feed port 10a is divided into two storage chambers, and the two storage chambers can independently supply sand to the outside. Due to the compact arrangement of the sand bin, the upstream and downstream equipment related to the sand storage can be further compactly arranged around the sand bin, thereby reducing the equipment footprint and optimizing the equipment layout.

[0025] It should be added that the old sand produced upstream needs to be input into the storage bin through transportation equipment (i.e., the first transporter 2 described below). If there are multiple storage bins, or multiple feed ports 10a are provided on a storage bin, multiple sets of transportation equipment need to be configured accordingly, or a set of transportation equipment needs to be configured with multiple control nodes to regulate the transportation destination and the transportation volume, so as to ensure that the old sand is accurately input into each bin. This will increase the equipment cost and control difficulty. The present application realizes the rapid series connection of one inlet, two storage bins and two outlets through the overflow connection setting, which can effectively simplify the sand transportation route, reduce the layout of the transportation equipment, and simplify the control difficulty of the transportation equipment.

[0026] In addition, according to the process requirements, the old sand is first used to fill the water-washed sand storage 11, which can ensure that the sand processing equipment downstream of the water-washed sand storage 11 operates first; when the sand circulation volume of the entire line is sufficient, it can also ensure that the sand processing equipment downstream of the water-washed sand storage 11 continues to operate, thereby meeting the modeling needs.

[0027] After the sand storage capacity in the water-washed sand storage 11 meets the circulation needs, the mechanically regenerated sand storage 12 can be used as a supply storage for another sand circulation line and as a backup storage. When the sand flow rate on the casting assembly line cannot meet the molding needs, it can also be compensated by transferring sand from the mechanically regenerated sand storage 12.

[0028] In a specific embodiment, water glass sand needs to be regenerated; the preferred treatment method of the regenerated water glass sand is wet regeneration; during the molding process, the amount of wet regenerated sand added needs to be guaranteed. In this embodiment, the amount of sand fed into the wet regeneration system 4 needs to be guaranteed, thereby ensuring the amount of sand regenerated through the wet regeneration system 4. Specifically, the old sand is input into the water-washed sand reservoir 11 through the feed port 10a and stored in the water-washed sand reservoir 11; a wet regeneration system 4 is provided downstream of the water-washed sand reservoir 11; after the regeneration procedure is started, the water-washed sand reservoir 11 outputs the old sand, and the wet regeneration system 4 receives and regenerates the old sand; the old sand newly input into the water-washed sand reservoir 11 gradually accumulates, and when the old sand accumulates to a level higher than the overflow plate 13, the mechanical regeneration sand reservoir 12 begins to accumulate sand; after the wet regeneration system 4 completes a batch of sand regeneration, the water-washed sand reservoir 11 outputs the old sand again; the material level in the water-washed sand reservoir 11 is lower than the overflow plate 13, and the newly input old sand fills the water-washed sand reservoir 11 again; the water-washed sand reservoir 11 is filled with sand first, which can ensure that the wet regeneration system 4 continues to work, thereby ensuring the amount of sand regeneration; the regenerated sand can be returned to the molding department for secondary use. At the same time, the mechanical regeneration sand reservoir 12 can store additional old sand to facilitate the supply or compensation of sand to the outside according to process requirements.

[0029] Optionally, the volume of the water-washed sand storage 11 is smaller than the volume of the mechanically regenerated sand storage 12 .

[0030] It is easy to understand that the water-washed sand storage 11 is connected to the downstream sand processing equipment, and the old sand has a better regeneration effect after being regenerated by the sand processing equipment. Therefore, the water-washed sand storage 11 can be regarded as a fine-processing sand storage. Affected by the processing efficiency of the downstream sand processing equipment (including a batch processing volume, processing time, etc.), the amount of sand discharged during a sand circulation process will be greater than or even much greater than the fine processing volume. If the volume of the water-washed sand storage 11 is large and the sand processing equipment is not processed in time, the water-washed sand storage 11 will continue to store sand, which will affect the sand collection of the mechanical regeneration sand storage 12.

[0031] It should be added that the volume of the water-washed sand storage 11 needs to match the sand processing equipment downstream thereof, at least ensuring that the sand holding capacity of the water-washed sand storage 11 is not less than the primary sand processing capacity of the sand processing equipment, thereby ensuring that the sand processing equipment can operate normally and continuously.

[0032] In some embodiments, the sand in the mechanically regenerated sand reservoir 12 can be directly reused.

[0033] In some other embodiments, a mechanical rubbing regeneration system is provided downstream of the mechanical regeneration sand storehouse 12, and the mechanical regeneration sand storehouse 12 is used to supply sand to the mechanical rubbing regeneration system; the mechanical rubbing regeneration system promotes mutual rubbing and collision between sand and sand, and between sand and equipment structure, thereby stripping chemical reagent residues on the surface of the sand. The regeneration effect of the mechanical rubbing regeneration system is average, but the processing efficiency is very high.

[0034] Therefore, the mechanically regenerated sand reservoir 12 can be regarded as a coarse treatment sand reservoir, and the sand output speed and sand output volume of the coarse treatment sand reservoir are higher than those of the fine treatment sand reservoir.

[0035] To this end, the volume of the water-washed sand storage 11 is made smaller than that of the mechanically regenerated sand storage 12. When the sand storage capacity of the water-washed sand storage 11 meets the processing needs of the downstream sand processing equipment, the other available space in the regenerated sand intermediate transition storage is allocated to the mechanically regenerated sand storage 12, which can promote the sand storage of the mechanically regenerated sand storage 12 and further ensure the reliable operation of the sand circulation related to the mechanically regenerated sand storage 12.

[0036] Optionally, the regenerated sand intermediate transition tank provided in the present application further includes a support 20 , and the water-washed sand tank 11 and the mechanically regenerated sand tank 12 are arranged on the support 20 and suspended in the air through the support 20 .

[0037] The support 20 is used to install and fix the water-washed sand storehouse 11 and the mechanical regeneration sand storehouse 12, and is also used to elevate the water-washed sand storehouse 11 and the mechanical regeneration sand storehouse 12. Since the water-washed sand storehouse 11 and the mechanical regeneration sand storehouse 12 are suspended, there is a certain space directly below the storehouse, which can be used to arrange the connected pipelines or downstream processing equipment. At this time, the sand in the storehouse can fall naturally, which eliminates the need to arrange transportation equipment.

[0038] Figure 1In the illustrated embodiment, the support 20 includes a plurality of legs, one end of which is fixedly arranged at the bottom of the water-washed sand storehouse 11 and the mechanical regeneration sand storehouse 12 by welding or screwing, so as to support and raise the water-washed sand storehouse 11 and the mechanical regeneration sand storehouse 12, and the other end of the leg is fixed to the ground. The volume of the water-washed sand storehouse 11 is small, so the water-washed sand storehouse 11 is suspended above the ground, and the interval between the water-washed sand storehouse 11 and the ground is large. Part of the mechanism of the wet regeneration system 4 is arranged below the water-washed sand storehouse 11. During the regeneration operation, the sand in the water-washed sand storehouse 11 can actively fall into the wet regeneration system 4. Similarly, a pneumatic sending tank is provided below the mechanical regeneration sand storehouse 12. When sending sand, the sand in the mechanical regeneration sand storehouse 12 can actively fall into the pneumatic sending tank under the action of gravity, so that the pneumatic sending tank can quickly send sand downstream.

[0039] Optionally, the bottom of the water-washed sand storage 11 and / or the mechanically regenerated sand storage 12 is arranged in a funnel shape.

[0040] For details, please refer to Figure 1 In the illustrated embodiment, the upper parts of the water-washed sand storage 11 and the mechanically regenerated sand storage 12 are both arranged in a cylindrical shape to facilitate the storage of a large amount of sand; the bottoms of the water-washed sand storage 11 and the mechanically regenerated sand storage 12 are both arranged in a tapered funnel shape to facilitate guiding and promoting the flow of sand to the bottom; at the same time, the cylindrical and funnel-shaped designs can also reduce the existence of corners and turns, thereby avoiding sand residue in the corners.

[0041] Optionally, a discharge port is provided at the bottom of the water-washed sand storage 11 and / or the mechanically regenerated sand storage 12 .

[0042] For details, please refer to Figure 1 In the illustrated embodiment, the bottoms of the water-washed sand storage 11 and the mechanically regenerated sand storage 12 are both configured to be in a tapered funnel shape, and at the same time, the discharge port 10b is provided at the bottom of the water-washed sand storage 11, and the discharge port 10c is provided at the bottom of the mechanically regenerated sand storage 12. When discharging, the funnel-shaped bottom can guide the sand to flow to the corresponding discharge port.

[0043] Optionally, the discharge port can be opened and closed.

[0044] For example, a valve is provided at the discharge port, so that the discharge port can be opened and closed, and the state of sand storage and discharge can be adjusted according to needs.

[0045] Optionally, the discharge port of the water-washed sand storage 11 and / or the mechanically regenerated sand storage 12 is provided with a quantitative feeding mechanism.

[0046] The discharge port 10a of the water-washed sand storage 11 is taken as an example for description.

[0047] In one embodiment, the quantitative feeding mechanism is a quantitative valve, and the discharge port 10a of the water-washed sand storage 11 is provided with a quantitative valve.

[0048] Specifically, the metering valve is opened, and the old sand can flow into the wet regeneration system 4 through the discharge port 10a. When the old sand flows out for a preset time or the outflow of the old sand reaches a preset value, the metering valve is closed, thereby controlling the amount of sand input into the wet regeneration system 4 at one time, ensuring the normal and efficient operation of the wet regeneration system 4 while meeting the required processing capacity of the wet regeneration system 4.

[0049] In another embodiment, the quantitative feeding mechanism is a vibrating feeder, and the discharge port 10a of the washed sand storage 11 is provided with a vibrating feeder.

[0050] Specifically, the regenerated sand in the water-washed sand storage 11 can flow into the vibrating feeder; when the vibrating feeder is started, it can vibrate and feed the old sand, thereby driving the old sand to flow to the wet regeneration system 4; after vibrating for a preset time or feeding a preset amount of old sand, the vibrating feeder is turned off.

[0051] Optionally, the vibrating feeder includes a vibrating platform and a vibrating driving member, the vibrating driving member is used to drive the vibrating platform to vibrate, and the vibrating platform is used to receive the old sand in the water-washed sand storage 11; from the water-washed sand storage 11 to the wet regeneration system 4, the vibrating platform is inclined; when feeding, the vibrating driving member is started, the vibrating platform vibrates, and the regenerated sand on the vibrating platform is vibrated and fed to the wet regeneration system 4. Since the vibrating platform is inclined, the old sand climbs on the vibrating platform, which is conducive to controlling the output speed and output amount of the old sand, and finally ensuring that an appropriate amount of old sand enters the wet regeneration system 4.

[0052] In another embodiment, the quantitative feeding mechanism is a screw feeder, and the discharge end of the washed sand storage 11 is provided with a screw feeder.

[0053] Specifically, the spiral feeder includes a barrel and a spiral blade, which is rotatably arranged in the barrel, and the barrel is connected to the water-washed sand storage 11 and the wet regeneration system 4; the old sand in the water-washed sand storage 11 can enter the barrel; when the spiral feeder is started, the spiral blade rotates, which can promote the spiral feeding of the old sand in the barrel to the wet regeneration system 4; after the spiral blade rotates for a preset time or feeds a preset amount of old sand, the spiral feeder is turned off and the spiral blade stops rotating.

[0054] This application does not limit the specific configuration of the quantitative feeding mechanism.

[0055] The quantitative feeding mechanism can control the sand output of the water-washed sand reservoir 11 and thereby ensure the sand input of the wet regeneration system 4, and can also prevent the regenerated sand in the water-washed sand reservoir 11 from flowing out when not necessary, which is beneficial to the sand storage reliability of the regenerated sand intermediate transition reservoir.

[0056] The situation when the discharge port of the mechanical regeneration sand storage 12 is provided with a quantitative feeding mechanism is similar to that of the water-washed sand storage 11, and the details are not repeated here.

[0057] Optionally, a detection component is provided in the water-washed sand storage 11 and / or the mechanically regenerated sand storage 12, and the detection component is used to detect the storage conditions in the storage.

[0058] Among them, the detection parts can be weighing devices, level meters, photoelectric sensors, CCD cameras, etc.

[0059] The detection element can be used to detect the sand reserves in the water-washed sand storage 11 or the mechanically regenerated sand storage 12, which is convenient for confirming the loading status of the water-washed sand storage 11 or the mechanically regenerated sand storage 12, and is convenient for feedback statistics on the use and circulation of sand.

[0060] The detection component can be used to detect whether the water-washed sand storage 11 or the mechanically regenerated sand storage 12 is fully loaded. When the water-washed sand storage 11 or the mechanically regenerated sand storage 12 is fully loaded, the detection component can feedback the detection situation to the outside, thereby reminding the workers to intervene and handle it.

[0061] The detection device can be used to detect the environment inside the water-washed sand storage 11 or the mechanically regenerated sand storage 12. When special situations such as fire, dust, smoke, etc. occur in the water-washed sand storage 11 or the mechanically regenerated sand storage 12, the detection device can feedback the detection situation to the outside, thereby reminding workers to intervene and deal with it.

[0062] This application does not limit the specific configuration of the detection element.

[0063] Optionally, the tops of the water-washed sand storage 11 and the mechanically regenerated sand storage 12 are flush.

[0064] For details, please refer to Figure 1 In the illustrated embodiment, the intermediate transition tank for regenerated sand is a one-tank, two-cavity configuration, the water-washed sand tank 11 and the mechanically regenerated sand tank 12 share a top, and the chambers for containing sand in the water-washed sand tank 11 and the mechanically regenerated sand tank 12 extend downward; the feed port 10a is arranged at the top of the intermediate transition tank for regenerated sand and directly faces the water-washed sand tank 11.

[0065] Reference Figure 1 The dotted line in the figure shows that in some use cases, as the feed port 10a continuously feeds sand, a sand pile with a sloped top is finally accumulated in the water-washed sand storehouse 11; after the edge of the sand pile is higher than the overflow plate 13, the sand that falls down will slide into the mechanical regeneration sand storehouse 12. Since the tops of the water-washed sand storehouse 11 and the mechanical regeneration sand storehouse 12 are flush, and the overflow plate 13 is not set up to touch the top, the mechanical regeneration sand storehouse 12 can also store sand close to the top of the storehouse, without worrying about the water-washed sand storehouse 11 being lower than the mechanical regeneration sand storehouse 12, resulting in the mechanical regeneration sand storehouse 12 not being filled and the sand returning to the water-washed sand storehouse 11, thereby affecting the sand feeding of the water-washed sand storehouse 11.

[0066] Optionally, a guardrail 14 is provided on the top of the intermediate transition storehouse of the regenerated sand.

[0067] Workers can stand on the top of the intermediate transition silo of the regenerated sand to confirm the feeding of sand and even the input of auxiliary sand. If necessary, workers can also confirm the sand storage conditions in the water-washed sand silo 11 and the mechanical regenerated sand silo 12 on the top of the silo, or confirm whether the water-washed sand silo 11 and the mechanical regenerated sand silo 12 are operating normally. The guardrail 14 can ensure the safety of workers on the top of the silo.

[0068] Optionally, a ladder is provided on one side of the intermediate transition tank of the regenerated sand, and the ladder is connected to the top of the tank, so that workers can enter and exit the top of the tank by the ladder.

[0069] The present application also provides a falling sand regeneration section, including the above-mentioned regenerated sand intermediate transition tank, and also includes: a falling sand crushing system 1, arranged upstream of the regenerated sand intermediate transition tank, used to destroy the sand mold and obtain old sand; a first conveyor 2, connected to the falling sand crushing system 1 and the regenerated sand intermediate transition tank, used to input the old sand into the regenerated sand intermediate transition tank.

[0070] In one embodiment, reference may be made to Figure 2 The sand-falling and crushing system 1 includes a sand-falling machine, which is used to shake out the sand from the mold. The mold includes a sand mold composed of molding sand and a casting formed in the sand mold by pouring. The sand-falling machine is used to shake out the sand from the mold, which can destroy the sand mold and obtain the casting therein. After the sand mold is destroyed, old sand will be formed.

[0071] Specifically, the shakeout machine comprises: a vibration body for receiving the casting mold; a vibration exciter for providing a vibration force for the vibration body; a spring and a base, and the vibration body is elastically arranged on the base through the spring.

[0072] Optionally, the motor of the vibrator can be controlled by frequency conversion; by adjusting the speed of the motor through the frequency converter, the magnitude of the exciting force can be adjusted to meet the needs of various vibration sand falling.

[0073] Optionally, the falling sand crushing system 1 further comprises a crusher, which is arranged below the falling sand machine and is used for vibrating and crushing the separated old sand.

[0074] The sand-falling machine has a fast sand-falling speed. When the high-temperature casting mold is sand-falling, the casting mold is destroyed at high temperature, and the broken old sand is still at high temperature. By setting a crusher under the sand-falling machine, the high-temperature old sand can quickly enter the crusher and be broken while hot. At this time, the movement distance of the old sand is short and the crushing efficiency is high. The old sand formed by crushing is also at high temperature, which is convenient for downstream equipment to regenerate the old sand while hot. Hot regeneration is conducive to improving the demoulding rate and the regeneration quality.

[0075] Specifically, the crusher includes: a material frame for receiving old sand; a vibrator for driving the material frame to vibrate; a crushing plate arranged in the material frame, and a sieve hole is arranged on the crushing plate. When the crusher is working, the vibrator (which can be a driving part such as a vibration motor, a motor, an exciter, etc.) drives the material frame to vibrate at a high frequency, so that the old sand in the material frame, the old sand and the material frame, the old sand and the crushing plate, and the sand grains in the old sand collide, rub, and rub against each other, thereby crushing the blocky old sand into particles; when the particle size of the old sand is not greater than the preset value, the old sand can pass through the sieve hole, fall under the crushing plate, and then leave the crusher and flow into the intermediate transition tank of the regenerated sand.

[0076] Optionally, the falling sand crushing system 1 further includes a lower sand cone bucket, which is connected to the falling sand machine and connected to the crusher; the farther away from the falling sand machine, the smaller the diameter of the lower sand cone bucket.

[0077] When the sand shaker shakes out the mold, the old sand flows into the crusher through the lower sand cone bucket, which can gather the old sand and guide it to the crusher. In addition, the lower sand cone bucket also has a certain storage function. When the material in the crusher is fully loaded, the old sand can be stored in the lower sand cone bucket.

[0078] The present application does not limit the specific configuration of the first conveyor 2, as long as it can input the sand passing through the falling sand crushing system 1 into the regenerated sand intermediate transition tank.

[0079] For example, the first conveyor 2 may use bucket-lift conveying and / or vibrating conveying equipment to facilitate the delivery of high-temperature sand.

[0080] In another embodiment, the first conveyor 2 may use a high-temperature conveyor belt.

[0081] In a specific embodiment, the first transporter 2 is a pneumatic sending tank.

[0082] Specifically, the pneumatic sending tank includes a tank body and a conveying pipeline; the tank body is connected to the falling sand crushing system 1 and can receive the crushed old sand; the conveying pipeline connects the tank body and the intermediate transition warehouse of regenerated sand. Furthermore, the tank body is connected to the air intake device, and during transportation, compressed gas is input into the tank body, driving the regenerated sand in the tank body to move along the conveying pipeline to the intermediate transition warehouse of regenerated sand.

[0083] Optionally, the falling sand regeneration section provided in the present application further includes a second transporter 3 , which is connected to the mechanical regeneration sand storage 12 and is used to output the sand in the mechanical regeneration sand storage 12 .

[0084] The second transporter 3 is similar to the first transporter 2 and will not be described in detail here.

[0085] The second conveyor 3 is connected to the discharge port 10c of the mechanical regeneration sand storehouse 12. When the mechanical regeneration sand storehouse 12 needs to supply sand to the outside, the discharge port 10c is opened, and the second conveyor 3 receives the sand and sends the sand downstream. By arranging a quantitative feeding mechanism at the discharge port 10c, the sand supply amount of the mechanical regeneration sand storehouse 12 can also be controlled as needed.

[0086] Optionally, the falling sand regeneration section provided in the present application further includes a wet regeneration system 4, which is arranged downstream of the water-washed sand reservoir 11 and is used for wet regeneration of the regenerated sand in the water-washed sand reservoir 11.

[0087] Wet regeneration is a regeneration method that fully mixes sand with solution and uses the solution to wash away chemical reagent residues on the surface of the sand. The wet regeneration system 4 can adopt existing technology, and the details are not repeated here.

[0088] Through wet regeneration, fine regeneration of sand can be achieved and the quality of the regenerated sand is good.

[0089] Optionally, a water tank 15 is provided in the water-washed sand reservoir 11, and the water tank 15 is used to store the wet regeneration solution; when the water-washed sand reservoir 11 supplies sand to the wet regeneration system 4, the sand and the wet regeneration solution are mixed and enter the wet regeneration system 4.

[0090] In one embodiment, the water tank 15 is arranged at one side of the water-washed sand storage 11, and a liquid inlet pipe and a liquid outlet pipe are arranged on the water tank 15. The liquid inlet pipe is used for liquid replenishment, and the liquid outlet pipe is connected to the discharge port 10b of the water-washed sand storage 11 or the feed port of the wet regeneration system 4. When the sand is regenerated, the discharge port 10b is opened, and the regenerated sand flows out of the water-washed sand storage 11 and flows to the wet regeneration system 4; at the same time, the wet regeneration solution in the water tank 15 flows to the wet regeneration system 4 through the liquid outlet pipe, and the solution is mixed with the sand to wash away the chemical reagent residue on the surface of the sand.

[0091] In another embodiment, referring to Figure 1 The water tank 15 is arranged in the water-washed sand storage 11, and the liquid outlet pipe on the water tank 15 is connected to the discharge port 10b of the water-washed sand storage 11. In this way, when the discharge port 10b is opened, the solution can flow out and mix with the sand synchronously.

[0092] In order to control the outflow of the solution from the water tank 15 , a quantitative feeding mechanism may be provided on the liquid outlet pipe of the water tank 15 .

[0093] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A regenerated sand intermediate transition tank, It is characterized in that include: A water-washed sand storage (11) for receiving old sand; A mechanically regenerated sand reservoir (12) is connected to the water-washed sand reservoir (11), and an overflow plate (13) is provided between the mechanically regenerated sand reservoir (12) and the water-washed sand reservoir (11); After the old sand enters the water-washed sand storage (11), it is accumulated in the water-washed sand storage (11); When the accumulated old sand is higher than the overflow plate (13), the old sand can pass through the overflow plate (13) and enter the mechanically regenerated sand reservoir (12).

2. The regenerated sand intermediate transition tank according to claim 1, It is characterized in that The volume of the water-washed sand storage (11) is smaller than the volume of the mechanically regenerated sand storage (12).

3. The regenerated sand intermediate transition tank according to claim 1, It is characterized in that It also comprises a support (20), the water-washed sand storage (11) and the mechanically regenerated sand storage (12) being arranged on the support (20) and suspended in the air by the support (20).

4. The regenerated sand intermediate transition tank according to claim 1, It is characterized in that The bottom of the water-washed sand storage (11) and / or the mechanically regenerated sand storage (12) is arranged in a funnel shape.

5. The regenerated sand intermediate transition tank according to claim 1, It is characterized in that A discharge port is provided at the bottom of the water-washed sand storage (11) and / or the mechanically regenerated sand storage (12), and a quantitative feeding mechanism is provided at the discharge port.

6. The regenerated sand intermediate transition tank according to claim 1, It is characterized in that The water-washed sand storage (11) and / or the mechanically regenerated sand storage (12) are provided with a detection component, and the detection component is used to detect the storage conditions in the storage.

7. The regenerated sand intermediate transition tank according to claim 1, It is characterized in that The tops of the water-washed sand storage (11) and the mechanically regenerated sand storage (12) are flush with each other, and a guardrail (14) is provided on the top of the storage.

8. A sand-falling regeneration unit, It is characterized in that The regenerated sand intermediate transition tank comprises the regenerated sand intermediate transition tank according to any one of claims 1 to 7, and further comprises: A falling sand crushing system (1) is provided upstream of the regenerated sand intermediate transition reservoir and is used to break the sand mold and obtain old sand; The first transporter (2) is connected to the falling sand crushing system (1) and the regenerated sand intermediate transition tank, and is used to input old sand into the regenerated sand intermediate transition tank.

9. The falling sand regeneration unit according to claim 8, It is characterized in that Also includes: A second transporter (3) connected to the mechanically regenerated sand reservoir (12) and used for outputting sand from the mechanically regenerated sand reservoir (12); A wet regeneration system (4) is arranged downstream of the water-washed sand reservoir (11) and is used to perform wet regeneration on the sand in the water-washed sand reservoir (11).

10. The falling sand regeneration unit according to claim 9, It is characterized in that The water-washed sand storage (11) is provided with a water tank (15), and the water tank (15) is used to store a solution for wet regeneration; When the water-washed sand storage (11) supplies sand to the wet regeneration system (4), the sand is mixed with a wet regeneration solution and enters the wet regeneration system (4).

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