Molten substance cooling forming and waste heat recovery device

Abstract

The utility model discloses a molten substance cooling forming and waste heat recovery device which comprises a cooling forming unit, a conveying unit and a waste heat recovery unit which are sequentially arranged. The cooling forming unit comprises a forming box, a plurality of cooling forming cavities are formed in the forming box, and a first cooling assembly is arranged in the wall face of each cooling forming cavity; the waste heat recovery unit comprises a plurality of waste heat recovery cavities, a second cooling assembly is arranged in the wall face of each waste heat recovery cavity, and the cooling forming cavities correspond to the waste heat recovery cavities one to one. The cooling forming unit and the waste heat recovery unit are arranged, waste heat generated in the melt cooling forming process is recovered in two steps, the placing time of formed substances in the cooling forming unit can be shortened, the formed substances are placed in the waste heat recovery unit to be subjected to waste heat recovery, and the waste heat recovery efficiency is improved. And the cooling forming efficiency of the molten substance is improved.

Description

Technical Field

[0001] This utility model belongs to the field of molten material forming and waste heat utilization technology, specifically relating to a device for cooling and forming molten material and recovering waste heat. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] Molten material cooling and forming equipment is a key piece of equipment in the field of molten material processing. It rapidly cools molten material, causing it to solidify quickly and form the desired product. Molten material cooling and forming equipment typically includes key components such as a processing chamber, a cooling assembly, and a metal plate. The processing chamber holds the molten material, the metal plate forms the cooling space, and the cooling assembly rapidly cools the molten material using a circulating coolant to improve production efficiency and product quality.

[0004] Existing molten material cooling and forming devices suffer from insufficient cooling efficiency in practical applications. This is mainly due to the high temperature of the molten material and the limited heat dissipation capacity of the cooling components, resulting in a slow cooling rate that affects production efficiency and product quality. Using cooling pipe arrays for cooling leads to uneven temperature distribution of the cooling water, resulting in uneven grain size and shape after forming, reducing the material's strength, toughness, and corrosion resistance. Furthermore, the molten material retains a high temperature after cooling and forming. If the formed material is removed from the cooling and forming device at this point, the residual heat cannot be recovered. If the formed material continues to be placed in the cooling and forming device for cooling, the cooling process is slow and time-consuming, affecting the subsequent cooling of the molten material and resulting in low molten material cooling efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a device for cooling and molding molten material and recovering waste heat, which can recover heat during the cooling and molding process of molten material and during the cooling process of the molded material, without affecting the cooling and molding efficiency of the molten material.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0007] In a first aspect, embodiments of this utility model provide a device for cooling and molding molten material and recovering waste heat, comprising a cooling and molding unit, a conveying unit, and a waste heat recovery unit arranged sequentially; the cooling and molding unit includes a molding box, and the molding box is provided with a plurality of cooling and molding cavities, each of which is provided with a first cooling component in its wall surface; the waste heat recovery unit includes a plurality of waste heat recovery cavities, each of which is provided with a second cooling component in its wall surface, and the cooling and molding cavities and the waste heat recovery cavities correspond one-to-one.

[0008] As a further technical solution, the molding box includes a bottom heat absorption box, an upper heat absorption box and multiple vertical heat absorption boxes that are interconnected. The bottom heat absorption box is provided with a cooling water inlet and the upper heat absorption box is provided with a cooling water outlet.

[0009] Alternatively, the molding box may include an independently configured bottom heat absorption box, an upper heat absorption box, and multiple vertical heat absorption boxes, with cooling water inlets and outlets independently configured on the bottom heat absorption box, the upper heat absorption box, and the vertical heat absorption boxes.

[0010] As a further technical solution, the plurality of vertical heat absorption boxes are located between the bottom heat absorption box and the upper heat absorption box, and two adjacent vertical heat absorption boxes are arranged in parallel and separated by a certain distance, forming a cooling and forming cavity between two adjacent vertical heat absorption boxes.

[0011] As a further technical solution, the first cooling component uses fins or heat absorption tubes, the second cooling component uses heat absorption tubes, the fins are used in conjunction with baffles, and the heat absorption tubes are used in conjunction with heat transfer filling materials.

[0012] As a further technical solution, the wall of the waste heat recovery chamber is made of a hollow heat-absorbing protective plate, and multiple heat-absorbing tubes are arranged inside the heat-absorbing protective plate, with heat transfer filling material filling the spaces between the heat-absorbing tubes.

[0013] As a further technical solution, the top of the plurality of heat absorption tubes is connected to the upper header and the bottom is connected to the lower header. The upper header is provided with a cooling water outlet and the lower header is provided with a cooling water inlet.

[0014] As a further technical solution, the waste heat recovery unit includes a high-temperature zone, a medium-temperature zone, and a low-temperature zone arranged in sequence. A conveying unit is provided between adjacent zones, and the upper and lower manifolds between adjacent zones are connected in series through pipelines. A water tank is provided on the pipeline connecting the low-temperature zone and the medium-temperature zone.

[0015] As a further technical solution, the conveying unit adopts a guide traction wheel, which includes an upper traction wheel and a lower traction wheel. The upper traction wheel and the lower traction wheel contact the top and bottom surfaces of the shaped material, respectively, to move the shaped material.

[0016] As a further technical solution, the upper traction wheel and the lower traction wheel are connected to a motor and are driven to rotate by the motor.

[0017] As a further technical solution, the front end of the cooling forming unit is connected to the molten material storage chamber.

[0018] The beneficial effects of the above-described embodiments of this utility model are as follows:

[0019] This invention utilizes a cooling and forming unit to cool molten material, causing it to solidify. The solidified material is then conveyed by a conveying unit to a waste heat recovery unit for further cooling, thus achieving waste heat recovery. By combining the cooling and forming unit with the waste heat recovery unit, the waste heat generated during the cooling and forming process is recovered in two steps. This reduces the time the solidified material spends in the cooling and forming unit, and the waste heat recovery unit further improves the efficiency of cooling and forming the molten material.

[0020] The cooling component in this invention uses fins in conjunction with a baffle plate and a heat-absorbing tube in conjunction with a heat-conducting filling material. This improves the cooling efficiency and waste heat recovery efficiency of the cooling forming unit and the waste heat recovery unit, and maximizes the heat recovery during the cooling process of the molten material.

[0021] This invention provides three different cooling and forming units and four different waste heat recovery units. In practical applications, different combinations can be selected as needed. The cooling and forming units and waste heat recovery units can also be used independently, making the whole device flexible in use. Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0023] Figure 1 This is a front view of the molten material cooling and molding and waste heat recovery device of this utility model;

[0024] Figure 2 This is a top view of the first structure of the molten material cooling and molding and waste heat recovery device of this utility model;

[0025] Figure 3 yes Figure 2 Side view of the intermediate cooling forming unit;

[0026] Figure 4 This is a top view of the second structure of the molten material cooling and molding and waste heat recovery device of this utility model;

[0027] Figure 5 This is a top view of the third structure of the molten material cooling and molding and waste heat recovery device of this utility model;

[0028] Figure 6 This is a top view of the first structure of the waste heat recovery unit of this utility model;

[0029] Figure 7 yes Figure 6 Side view of the waste heat recovery unit;

[0030] Figure 8 This is a top view of the second structure of the waste heat recovery unit of this utility model;

[0031] Figure 9 yes Figure 8 Side view of the waste heat recovery unit;

[0032] Figure 10 This is a top view of the third structure of the waste heat recovery unit of this utility model;

[0033] Figure 11 yes Figure 10 Side view of the waste heat recovery unit;

[0034] Figure 12 This is a top view of the fourth structure of the waste heat recovery unit of this utility model;

[0035] Figure 13 yes Figure 12 Side view of the waste heat recovery unit.

[0036] The diagram is for illustrative purposes only.

[0037] The components include: 1. Cooling and forming cavity; 2. Fins; 3. Baffle plate; 4. Vertical heat absorption box; 5. Bottom heat absorption box; 6. Molten material storage chamber; 7. Upper heat absorption box; 8. Lower header; 9. Heat absorption pipe; 10. Upper header; 11. Heat transfer filling material; 12. Protective plate; 13. Lower guide traction wheel; 14. Upper guide traction wheel; and 15. Waste heat recovery chamber. Detailed Implementation

[0038] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0039] Example 1

[0040] In a typical embodiment of this utility model, such as Figure 1-13As shown, a device for cooling and molding molten material and recovering waste heat is provided, comprising a cooling and molding unit, a conveying unit, and a waste heat recovery unit arranged sequentially; the cooling and molding unit includes a molding box, and the molding box is provided with multiple cooling and molding cavities, each of which is provided with a first cooling component on its wall; the waste heat recovery unit includes multiple waste heat recovery cavities, each of which is provided with a second cooling component on its wall, and the cooling and molding cavities and the waste heat recovery cavities correspond one-to-one.

[0041] This embodiment uses a cooling and forming unit to cool the molten material, causing it to solidify. The solidified material is then transported by a conveying unit to a waste heat recovery unit for further cooling, thus achieving waste heat recovery. By combining the cooling and forming unit with the waste heat recovery unit, the waste heat generated during the cooling and forming process is recovered in two steps. This reduces the time the solidified material spends in the cooling and forming unit, and the waste heat recovery unit further improves the efficiency of waste heat utilization after the molten material has cooled and solidified.

[0042] In this embodiment, the molding box includes a bottom heat-absorbing box, an upper heat-absorbing box, and multiple vertical heat-absorbing boxes that are interconnected. The bottom heat-absorbing box is provided with a cooling water inlet, and the upper heat-absorbing box is provided with a cooling water outlet. Cooling water enters the bottom heat-absorbing box through the cooling water inlet, and the bottom heat-absorbing box plays a role in distributing the cooling water. The cooling water in the bottom heat-absorbing box enters the multiple vertical heat-absorbing boxes to cool the molten material. The cooled water, after its temperature rises, collects in the upper heat-absorbing boxes and is discharged from the cooling water outlet. The bottom heat-absorbing box, the upper heat-absorbing box, and the vertical heat-absorbing boxes can also be provided with independent cooling water inlets and outlets.

[0043] Furthermore, the plurality of vertical heat-absorbing boxes are located between the bottom heat-absorbing box and the upper heat-absorbing box. Two adjacent vertical heat-absorbing boxes are arranged in parallel and separated by a certain distance, forming a cooling and forming cavity between two adjacent vertical heat-absorbing boxes. The cooling and forming cavity can be set into any shape as needed; in this embodiment, a cuboid cooling and forming box is used as an example.

[0044] Furthermore, the front end of the cooling and forming box is connected to the molten material storage chamber, and both the front and rear ends of the cooling and forming box are sealed by baffles. After the molten material in the molten material storage chamber enters the cooling and forming box, the molten material is cooled and formed.

[0045] like Figure 2-5 As shown, the bottom heat absorption box, the upper heat absorption box, and multiple vertical heat absorption boxes in the cooling forming unit are all equipped with a first cooling component, which adopts fins or heat absorption tubes.

[0046] like Figure 2 and Figure 3As shown, the cooling and forming box is equipped with three cooling and forming cavities. The first cooling components in the bottom heat absorption box, the upper heat absorption box, and multiple vertical heat absorption boxes all use fins. The fins are used in conjunction with baffles. One end of the fin is connected to the wall of the heat absorption box, and the other end is connected to the baffle. The fins can improve the uniformity of temperature distribution in the heat exchange box. The baffles increase the turbulence during the flow of cooling water, which helps to improve the cooling efficiency of the cooling water.

[0047] like Figure 4 As shown, the cooling and forming box has two cooling and forming cavities. The first cooling component in the vertical heat absorption box uses heat absorption pipes. Multiple heat absorption pipes are vertically arranged inside the vertical heat absorption box. The bottom of the heat absorption pipes is connected to the bottom heat absorption box, and the top is connected to the upper heat absorption box. A heat transfer filler material is filled between the heat absorption pipes and the wall of the vertical heat absorption box. By filling with a heat transfer filler material, the thermal conductivity of the vertical heat absorption box can be improved, thus increasing the cooling efficiency. The heat transfer filler material can be a high thermal conductivity metal material, such as metal powder / particles with good thermal conductivity. Alternatively, the heat absorption pipes can be used without a heat transfer filler material.

[0048] like Figure 5 As shown, the cooling molding box has three cooling molding chambers. The first cooling component in the vertical heat absorption box uses heat absorption pipes, and... Figure 4 The difference in structure is that the two heat absorption boxes in the middle have two rows of heat absorption tubes, and the space between the two rows of heat absorption tubes is filled with heat transfer filling material.

[0049] like Figure 6-13 As shown, the wall of the waste heat recovery chamber is made of a hollow heat-absorbing protective plate, and a second cooling component is installed inside the heat-absorbing protective plate. The second cooling component is made of heat-absorbing pipes, and the space between the heat-absorbing pipes is filled with a heat-transfer filling material.

[0050] like Figure 6 and Figure 7 As shown, the waste heat recovery chamber has two sections. A row of heat-absorbing pipes is installed inside the hollow heat-absorbing plate. The top of the heat-absorbing pipes connects to the upper header, and the bottom connects to the lower header. The upper header has a cooling water outlet, and the lower header has a cooling water inlet. The waste heat recovery unit is divided into a high-temperature zone, a medium-temperature zone, and a low-temperature zone (the specific temperature is determined according to different materials). A conveying unit is installed between adjacent zones, and reference is also made to... Figure 1 The upper and lower headers between adjacent areas are connected in series by pipes, and a water tank is installed on the pipe connecting the low temperature zone and the medium temperature zone.

[0051] The shaped material sequentially enters the high-temperature zone, the medium-temperature zone, and the low-temperature zone to release heat, and is transferred between adjacent zones by a set conveying unit.

[0052] like Figure 8 and Figure 9 As shown, with Figure 6 The difference in structure is that the waste heat recovery chamber is provided with three chambers. The two middle heat-absorbing protective plates are each provided with two rows of heat-absorbing tubes. The space between the two rows of heat-absorbing tubes is filled with heat transfer filling material. The two adjacent rows of heat-absorbing tubes share an upper header and a lower header. The waste heat recovery unit is divided into a high-temperature zone and a low-temperature zone.

[0053] like Figure 10 and Figure 11 As shown, with Figure 6 Unlike the previous structure, the waste heat recovery unit only has one heat exchange zone, while the rest of the structure is the same. Figure 6 The structures are the same.

[0054] like Figure 12 and Figure 13 As shown, with Figure 8 Unlike the previous structure, the waste heat recovery unit only has one heat exchange zone, while the rest of the structure is the same. Figure 8 The structures are the same.

[0055] It is important to note that Figure 6-13 The bottom of the waste heat recovery chamber is equipped with a base plate to support the molded material.

[0056] In this embodiment, both the cooling forming unit and the waste heat recovery unit are made of metal materials with good thermal conductivity.

[0057] In this embodiment, the conveying unit employs a guide traction wheel, which includes an upper traction wheel and a lower traction wheel. The upper and lower traction wheels contact the top and bottom surfaces of the material being formed, respectively, to move the material. Specifically, the upper and lower traction wheels are connected to a motor and are driven to rotate by the motor. The guide traction wheel and motor utilize existing structures, and the guide traction can also be replaced with other conveying equipment such as a conveyor belt; those skilled in the art can select according to their needs.

[0058] The molten material cooling and forming and waste heat recovery device provided in this embodiment offers three different cooling and forming units and four different waste heat recovery units. In practical applications, different combinations can be selected as needed, and the cooling and forming units and waste heat recovery units can also be used independently.

[0059] by Figure 1 Taking the molten material cooling and molding and waste heat recovery device as an example, its working principle is explained:

[0060] The rear end of the cooling and forming unit is sealed by a baffle, and the molten material in the molten material storage chamber is cooled and formed in the machine. Then the front end of the cooling and forming unit is sealed. Cooling water enters through the cooling inlet on the bottom heat absorption box, and then enters the vertical heat absorption box and the upper heat absorption box in sequence to cool the molten material. The bottom heat absorption box, the upper heat absorption box, and the vertical heat absorption box can also be equipped with independent cooling water inlets and outlets.

[0061] After the molten material cools and solidifies, the baffle at the rear of the cooling and solidification unit is opened. With manual intervention or a robotic arm, the solidified material is pushed onto guide traction wheels. Under the rotating conveying action of these wheels, the solidified material enters the waste heat recovery chamber corresponding to the high-temperature zone of the waste heat recovery unit for waste heat recovery. Once the temperature drops to the set temperature, it sequentially enters the waste heat recovery chambers of the medium-temperature and low-temperature zones for further waste heat recovery. Cooling water enters from the lower manifold of the low-temperature zone and then sequentially enters the medium-temperature and high-temperature zones, with the temperature of the cooling water increasing sequentially, thus achieving tiered recovery of waste heat.

[0062] It is used in situations where the cooling water from the cooling molding unit and the waste heat recovery unit, after being heated, is supplied with the required hot water.

[0063] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for cooling and molding molten material and recovering waste heat, characterized in that, The system includes a cooling and forming unit, a conveying unit, and a waste heat recovery unit arranged sequentially. The cooling and forming unit includes a forming box, which contains multiple cooling and forming cavities. Each cooling and forming cavity has a first cooling component installed on its wall. The waste heat recovery unit includes multiple waste heat recovery cavities, each of which has a second cooling component installed on its wall. The cooling and forming cavities and the waste heat recovery cavities correspond one-to-one.

2. The molten material cooling and molding and waste heat recovery device as described in claim 1, characterized in that, The molding box includes a bottom heat absorption box, an upper heat absorption box, and multiple vertical heat absorption boxes that are interconnected. The bottom heat absorption box is provided with a cooling water inlet, and the upper heat absorption box is provided with a cooling water outlet. Alternatively, the molding box may include an independently configured bottom heat absorption box, an upper heat absorption box, and multiple vertical heat absorption boxes, with cooling water inlets and outlets independently configured on the bottom heat absorption box, the upper heat absorption box, and the vertical heat absorption boxes.

3. The molten material cooling and molding and waste heat recovery device as described in claim 2, characterized in that, The plurality of vertical heat absorption boxes are located between the bottom heat absorption box and the upper heat absorption box. Two adjacent vertical heat absorption boxes are arranged in parallel and are separated by a certain distance, and a cooling and forming cavity is formed between two adjacent vertical heat absorption boxes.

4. The molten material cooling and molding and waste heat recovery device as described in claim 1, characterized in that, The first cooling component uses fins or heat absorbers, and the second cooling component uses heat absorbers. The fins are used in conjunction with baffles, and the heat absorbers are used in conjunction with heat transfer filling materials.

5. The molten material cooling and molding and waste heat recovery device as described in claim 4, characterized in that, The wall of the waste heat recovery chamber is made of a hollow heat-absorbing protective plate, and multiple heat-absorbing tubes are installed inside the heat-absorbing protective plate, with heat transfer filling material filling the spaces between the heat-absorbing tubes.

6. The molten material cooling and molding and waste heat recovery device as described in claim 5, characterized in that, The top of the plurality of heat absorption tubes is connected to the upper header and the bottom is connected to the lower header. The upper header is provided with a cooling water outlet and the lower header is provided with a cooling water inlet.

7. The molten material cooling and molding and waste heat recovery device as described in claim 6, characterized in that, The waste heat recovery unit includes a high-temperature zone, a medium-temperature zone, and a low-temperature zone arranged in sequence. A conveying unit is set between adjacent zones, and the upper and lower manifolds between adjacent zones are connected in series through pipelines. A water tank is installed on the pipeline connecting the low-temperature zone and the medium-temperature zone.

8. The molten material cooling and molding and waste heat recovery device as described in claim 1, characterized in that, The conveying unit employs guide traction wheels, which include an upper traction wheel and a lower traction wheel. The upper traction wheel and the lower traction wheel contact the top and bottom surfaces of the shaped material, respectively, to move the shaped material.

9. The molten material cooling and molding and waste heat recovery device as described in claim 8, characterized in that, The upper and lower traction wheels are connected to a motor and are driven to rotate by the motor.

10. The molten material cooling and molding and waste heat recovery device as described in claim 1, characterized in that, The front end of the cooling and forming unit is connected to the molten material storage chamber.

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