Foundry sand cooling and recycling device

Abstract

The utility model discloses a foundry sand cooling and recycling device, and relates to the field of casting. Comprising a rotary cylinder cage, a front rotary ring and a rear rotary ring are arranged at the front end and the rear end of the rotary cylinder cage respectively, and a front pair of riding wheels and a rear pair of riding wheels fixed to a liquid receiving tank support the front rotary ring and the rear rotary ring respectively. The two ends of the rotary cylinder cage are the feeding end and the discharging end respectively, the horizontal height of the feeding end is larger than that of the discharging end, the rotary cylinder cage comprises an inner rod cage layer and an outer net cage layer, a support is arranged at the top of the rotary cylinder cage, a brush is arranged on the support, bristles of the brush abut against the outer surface of the net cage layer of the rotary cylinder cage, and the rod cage layer is arranged on the support. A spraying pipe is further fixed to the support, and a plurality of nozzles arranged at intervals are formed in the bottom of the spraying pipe. By using the equipment, high-temperature waste foundry sand blocks can be rapidly cooled, and subsequent crushing and screening treatment is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of casting, and in particular to a casting sand cooling and recovery device. Background Technology

[0002] The recycling of foundry sand is crucial from an environmental protection perspective. The indiscriminate disposal of foundry waste sand causes serious pollution to the ecological environment. Foundry waste sand contains various harmful components, such as residual formaldehyde, sulfides, isocyanates, benzene, phenols, acids, water glass, and alkalis. These components can pollute rivers, lakes, and even drinking water sources through rainwater runoff, while dust carried by the wind pollutes the air. Therefore, recycling can reduce the demand for new sand resources, conserve limited natural resources, and reduce environmental pollution and waste of silica sand resources.

[0003] Secondly, from an economic perspective, recycling foundry waste sand can reduce enterprise costs and improve economic efficiency. By regenerating old sand and mixing it with new sand, the amount of new sand used can be reduced, saving economic investment.

[0004] To achieve foundry sand recycling, current methods generally involve crushing and multi-stage screening. For example, invention patent CN116765318A discloses a high-efficiency foundry sand recycling system. This system crushes waste sand blocks and shells used in casting into 6-80 mesh sand. Then, it screens the sand, sending all the material through an elevator into a feeding hopper, and subsequently into a six-stage vibrating screen to obtain recycled sand of different mesh sizes. In practical use, the waste sand blocks must be allowed to cool after demolding before use; otherwise, the equipment will age beyond its normal operating speed.

[0005] Meanwhile, patent application CN111437977A discloses a foundry sand recycling and crushing device. This device features a water-cooling mechanism on its body, including mounting bases on both sides of the body. A main water pipe is connected to the bottom of the water tank, and multiple branch water pipes are installed on the main water pipe. This water-cooling mechanism reduces heat accumulation during prolonged use, thus significantly extending the device's lifespan.

[0006] However, water-cooling modifications to crushing equipment are not universally applicable. Therefore, equipment that can quickly recycle and cool foundry sand waste blocks not only eliminates the need to modify existing equipment but also extends the lifespan of subsequent processing equipment, making it more widely applicable. Utility Model Content

[0007] To overcome the shortcomings of the prior art, this utility model discloses a foundry sand recycling and cooling device. By using this device, high-temperature foundry sand waste blocks can be cooled quickly, which facilitates subsequent crushing and screening.

[0008] To achieve the above effects, the technical solution adopted in this application is:

[0009] A foundry sand cooling and recovery device includes a rotary drum cage. A front rotary ring and a rear rotary ring are respectively provided at the front and rear ends of the rotary drum cage. Two pairs of support rollers fixed to a liquid receiving tank support the front and rear rotary rings respectively. At least one set of support rollers is driven by a reduction motor. The two ends of the rotary drum cage are a feed end and a discharge end, with the feed end's horizontal height higher than the discharge end's horizontal height. The rotary drum cage includes an inner rod cage layer and an outer mesh cage layer. A support is provided at the top of the rotary drum cage, and a brush is provided on the support. The bristles of the brush abut against the outer surface of the mesh cage layer of the rotary drum cage. A spray pipe is also fixed on the support, and several spaced nozzles are provided at the bottom of the spray pipe.

[0010] Furthermore, the geared motor is poweredly connected to the support roller via a belt.

[0011] Furthermore, the spray pipe is connected to an external water source via an inlet pipe.

[0012] Furthermore, a protective cover is provided on the outside of the rotary drum cage, and the support is located on the upper part of the protective cover.

[0013] Furthermore, at least one end of the spray pipe is fixedly connected to the bracket via a support pipe frame.

[0014] Furthermore, a drain outlet is provided at the bottom of the liquid receiving tank, and a ball valve is provided on the drain outlet.

[0015] Furthermore, the liquid receiving tank is supported by a base, and the geared motor is fixedly mounted on the base.

[0016] Furthermore, the feeding end is provided with a feeding hopper, and the discharging end is provided with a discharging trough.

[0017] Furthermore, the rod cage layer is composed of several metal rods arranged at equal intervals along the radial direction of the rotating cylinder cage. The mesh cage layer is a stainless steel screen.

[0018] Compared with existing technologies, this invention provides a specialized foundry sand cooling and recovery device that sprays and cools waste foundry sand blocks. This not only effectively cools high-temperature foundry sand but also enables continuous, stable, and highly efficient production. More importantly, the double-layer rotary drum cage design with both a rod cage layer and a wire mesh cage layer not only extends the service life of the rotary drum cage but also effectively achieves the cooling effect. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the structure of one side of the feed end of this utility model.

[0022] Figure 3 This is a schematic diagram of the rotary drum cage drive of this utility model.

[0023] Figure 4 This is a structural schematic diagram of the rotary drum cage of this utility model from another perspective.

[0024] Figure 5 This is a schematic diagram of the structure of the bracket of this utility model.

[0025] Figure 6 This is a structural schematic diagram of the support frame from the bottom view of this utility model.

[0026] Figure 7 This is a schematic diagram of the structure between the brush and the rotary drum of this utility model.

[0027] In the diagram: Rotary drum cage-1, front rotary ring-2, rear rotary ring-3, liquid receiving tank-4, support roller-5, geared motor-6, feed end-7, discharge end-8, rod cage layer-9, mesh cage layer-10, support bracket-11, brush-12, brush bristles-13, spray pipe-14, nozzle-15, protective cover-16, support pipe frame-17, drain outlet-18, ball valve-19, base-20, feed hopper-21, discharge chute-22, water inlet pipe-23, belt-24. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "communication" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] refer to Figure 1-7 A foundry sand cooling and recovery device includes a rotary drum cage 1. A front rotary ring 2 and a rear rotary ring 3 are respectively provided at the front and rear ends of the rotary drum cage 1. Two pairs of front and rear support rollers 5, fixed to a liquid receiving tank 4, support the front rotary ring 2 and the rear rotary ring 3 respectively. At least one set of support rollers 5 is driven by a reduction motor 6. The two ends of the rotary drum cage 1 are a feed end 7 and a discharge end 8, respectively, with the horizontal height of the feed end 7 higher than that of the discharge end 8. The rotary drum cage 1 includes an inner rod cage layer 9 and an outer mesh cage layer 10. A support 11 is provided on the top of the rotary drum cage 1, and a brush 12 is provided on the support. The bristles 13 of the brush abut against the outer surface of the mesh cage layer 10 of the rotary drum cage 1. A spray pipe 14 is also fixed on the support 11, and a plurality of spaced-apart nozzles 15 are provided at the bottom of the spray pipe 14.

[0032] In operation, waste sand blocks enter the rotary drum 1 through the feed end 7. Since the feed end is at a higher level than the discharge end, the sand blocks naturally flow downwards due to gravity. The rotary drum 1 is supported by a front rotary ring 2 and a rear rotary ring 3 at both ends, and is further supported by at least one set of support rollers 5. At least one set of these support rollers is driven by a geared motor 6, enabling the rotary drum 1 to rotate. This rotational motion helps to evenly distribute and move the sand blocks inside the drum.

[0033] At the top of the rotary drum cage 1, there is a support 11, on which a brush 12 is mounted. The bristles 13 of the brush abut against the outer surface of the mesh layer 10, which helps to remove sand particles stuck in the mesh of the mesh layer and prevents blockage of the cooling water inlet and outlet. At the same time, a spray pipe 14 is also fixed on the support 11, and the bottom of the spray pipe has several spaced nozzles 15. These nozzles spray water onto the sand blocks inside the drum cage to achieve a cooling effect.

[0034] When the water sprayed from the spray pipe 14 comes into contact with the sand blocks, it absorbs the heat from the sand blocks and is then collected and discharged through the liquid receiving tank 4. This process collects cooling water and facilitates its subsequent recycling, reducing water waste.

[0035] The cooled sand blocks will eventually be discharged through the discharge end 8. Since the horizontal height of the discharge end is lower than that of the feed end, the sand blocks can flow smoothly out of the cylinder.

[0036] The water adhering to the surface of the discharged sand blocks can further promote the cooling of the sand blocks, ensuring that subsequent crushing processes will not damage the crushing equipment.

[0037] More importantly, the rotary drum cage 1 includes an inner bar cage layer 9 and an outer wire mesh cage layer 10. The bar cage layer can effectively prevent some waste sand blocks from directly contacting the wire mesh cage layer, thus avoiding damage to the wire mesh cage layer and improving its service life.

[0038] Preferably, based on the above technical solution, and referring to Figure 3 The geared motor 6 is poweredly connected to the support roller 5 via a belt 24. The belt 24 transmits the power of the geared motor to the support roller.

[0039] Preferably, based on the above technical solution, and referring to Figure 5-6 The spray pipe 14 is connected to an external water source via a water inlet pipe 23. The external water source can be fresh water or recycled water.

[0040] Preferably, based on the above technical solution, and referring to Figure 1-2 Alternatively, 7, a protective cover 16 is provided on the outside of the rotary drum cage 1, and the support 11 is provided on the upper part of the protective cover 16. The addition of the protective cover prevents the splashing of cooling water. At least one end of the spray pipe 14 is fixedly connected to the support 11 through a support pipe frame 17.

[0041] Alternatively, alternative embodiments chosen by those skilled in the art include: a drain outlet 18 is provided at the bottom of the liquid receiving tank 4, and a ball valve 19 is provided on the drain outlet 18. The liquid receiving tank 4 is supported by a base 20, and the reduction motor 6 is fixedly mounted on the base 20. A feed hopper 21 is provided at the feed end 7, and a discharge trough 22 is provided at the discharge end 8.

[0042] For details, please refer to Figure 7 The rod cage layer 9 is composed of several metal rods arranged at equal intervals along the radial direction of the rotary drum cage 1. The mesh cage layer 10 is a stainless steel screen. The internal metal rods prevent waste sand blocks from directly contacting the stainless steel screen of the mesh cage layer, reducing wear on the stainless steel screen and greatly extending the service life of the rotary drum cage.

[0043] The above description is merely a specific embodiment of this technology, but the scope of protection of this technology is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the scope of the technology disclosed herein, and these modifications or substitutions should all be covered within the scope of protection of this technology. Therefore, the scope of protection of this technology should be determined by the scope of the claims. Any aspects of this utility model not described in detail are prior art or common knowledge in the field.

Claims

1. A foundry sand cooling and reclaiming apparatus characterized by: The application relates to a rotary cylinder cage (1), the front and rear ends of which are respectively provided with a front rotary ring (2) and a rear rotary ring (3), and two pairs of supporting wheels (5) fixed on a liquid receiving groove (4) support the front rotary ring (2) and the rear rotary ring (3) respectively, wherein at least one group of the supporting wheels (5) is driven by a speed reducer motor (6), the two ends of the rotary cylinder cage (1) are respectively a feeding end (7) and a discharging end (8), and the feeding end (7) is arranged to be higher than the discharging end (8), the rotary cylinder cage (1) comprises an inner rod cage layer (9) and an outer mesh cage layer (10), the top of the rotary cylinder cage (1) is provided with a support (11), the support (11) is provided with a brush (12), the bristles (13) of the brush (12) abut against the outer surface of the mesh cage layer (10) of the rotary cylinder cage (1), and a spraying pipe (14) is further fixed on the support (11), and the bottom of the spraying pipe (14) is provided with a plurality of interval arranged nozzles (15).

2. A foundry sand cooling and reclaiming device according to claim 1, characterized in that: The speed reducer motor (6) is power-connected with the supporting wheel (5) through a belt (24).

3. A foundry sand cooling and reclaiming device according to claim 1, characterized in that: The spraying pipe (14) is communicated with an external water source through a water inlet pipe (23).

4. The foundry sand cooling and reclaiming device of claim 1, wherein: The rotary cylinder cage (1) is externally provided with a protective cover (16), and the support (11) is arranged on the upper portion of the protective cover (16).

5. The foundry sand cooling and reclaiming device of claim 1, wherein: At least one end of the spraying pipe (14) is fixedly connected with the support (11) through a supporting pipe frame (17).

6. A foundry sand cooling and reclaiming device according to claim 1, characterized in that: The bottom of the liquid receiving groove (4) is provided with a drain port (18), and the drain port (18) is provided with a ball valve (19).

7. A foundry sand cooling and reclaiming device according to claim 1, characterized in that: The liquid receiving groove (4) is supported by a base (20), and the speed reducer motor (6) is fixedly arranged on the base (20).

8. A foundry sand cooling and reclaiming device according to claim 1, characterized in that: The feeding end (7) is provided with a feeding hopper (21), and the discharging end (8) is provided with a discharging groove (22).

9. A foundry sand cooling and reclaiming device according to claim 1, characterized in that: The rod cage layer (9) is composed of a plurality of metal rods which are equidistantly and interval arranged along the radial direction of the rotary cylinder cage (1).

10. The foundry sand cooling and reclaiming device of claim 1, wherein: The mesh cage layer (10) is a stainless steel screen.

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