Lost foam drying room powered by waste heat of casting molding sand
By using the waste heat of casting sand to supply energy, the problem of high energy consumption of traditional disappeared mold casting drying rooms is solved, and the effect of reducing production costs is achieved.
Patent Information
- Application Number
- CN202422029413.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-08-20
AI Technical Summary
Traditional disappearing mold casting drying rooms adopt electric heating to cause high energy consumption and high production costs.
The cast molded sand is heated by energy supply, and the water in the heat exchanger is heated by molded sand, and the heated water is transported into the heat sink by using a hot water conveying mechanism to heat the drying room.
It reduces energy consumption caused by electric heating and reduces production costs.
Smart Images
Figure CN223064199U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lost foam casting, in particular to a lost foam drying room for supplying energy by the waste heat of casting sand. Background Art
[0002] In the lost foam casting process, after the white mold (foam model) is dipped in the coating, it becomes a lost foam mold shell, and a drying room is required to dry the lost foam mold shell; the traditional drying room uses electric heating to supply heat to the inside of the drying room, and the electric heating method has a high operating cost and large energy consumption, ultimately resulting in a high production cost for the enterprise. Summary of the Utility Model
[0003] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a lost foam drying room for supplying energy by the waste heat of casting sand.
[0004] The technical solution adopted by the utility model to solve its technical problems is: a lost foam drying room for supplying energy by the waste heat of casting sand, including a drying room body, wherein a plurality of groups of heat dissipation mechanisms are fixedly installed on the inner walls of the front and rear sides of the drying room body, the heat dissipation mechanism includes a heat dissipation cover, the heat dissipation cover is fixedly installed on the inner wall of the drying room body, a fan is fixedly installed at one end of the heat dissipation cover close to the wall, a heat dissipation fin is arranged on the front side of the fan, the heat dissipation fin is fixedly installed inside the heat dissipation cover, and a plurality of groups of the heat dissipation fins are connected to each other through a hot water delivery mechanism, and a heat exchange mechanism is arranged outside the drying room body.
[0005] Further, the hot water delivery mechanism includes a water outlet pipe, the water outlet pipe is fixedly installed on the right side of the top of the drying room body, two heat dissipation fin inlet pipes are fixedly connected to the water outlet pipe, the two heat dissipation fin inlet pipes are fixedly installed on the inner wall of the drying room body, and the water inlet ends of the heat dissipation fins on the same side are fixedly connected to the heat dissipation fin inlet pipes.
[0006] Further, a water pump is fixedly installed on the left side of the top of the drying room body, a water return pipe is fixedly installed at the water outlet end of the water pump, the water return pipe is fixedly installed on the outer wall of the drying room body, a shunt pipe is fixedly installed at the water inlet end of the water pump, two heat dissipation fin outlet pipes are fixedly connected to the shunt pipe, the two heat dissipation fin outlet pipes are fixedly installed on the inner wall of the drying room body, and the water outlet ends of the heat dissipation fins on the same side are fixedly connected to the heat dissipation fin outlet pipes.
[0007] Further, an electric louver baffle is arranged on the side of the heat dissipation cover away from the wall.
[0008] Further, the heat exchange mechanism includes a heat exchanger, the heat exchanger is fixedly installed on the ground, a sand bin is fixedly installed on the top of the heat exchanger, and a molding sand elevator is arranged on the side of the heat exchanger.
[0009] Furthermore, a heat exchange cavity is provided inside the heat exchanger. A number of sand dropping pipes are fixedly installed in the heat exchange cavity. The sand dropping pipes are communicated with the sand bin. Water outlets and water inlets are provided on the outer wall of the heat exchanger. Both the water outlets and water inlets are communicated with the heat exchange cavity. The water outlets are connected to the water outlet pipes, and the water inlets are connected to the water return pipes.
[0010] The beneficial effect of the present utility model is that through the design of installing heat dissipation fins inside the drying room body, the high-temperature molding sand is transported into the heat exchanger, the water in the heat exchanger is heated by the molding sand, and the heated water is transported into the heat dissipation fins through the hot water transportation mechanism, so as to heat the drying room, reduce the energy consumption caused by electric heating, and further reduce the production cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The present utility model will be further described below with reference to the drawings and embodiments.
[0012] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0013] Figure 2 is a schematic diagram of the structure of the drying room body of the present utility model;
[0014] Figure 3 is a top view of the drying room body of the present utility model;
[0015] Figure 4 is Figure 2 a schematic cross-sectional structure diagram in the A-A direction in;
[0016] Figure 5 is Figure 3 a schematic cross-sectional structure diagram in the B-B direction in;
[0017] Figure 6 is a schematic diagram of the structure of the heat exchanger of the present utility model.
[0018] In the figure: 1. Drying room body, 2. Heat dissipation mechanism, 21. Heat dissipation cover, 22. Fan, 23. Heat dissipation fins, 24. Electric louver baffle, 3. Water outlet pipe, 4. Heat dissipation fin water inlet pipe, 5. Water pump, 6. Water return pipe, 7. Shunt pipe, 8. Heat dissipation fin water outlet pipe, 9. Heat exchanger, 91. Heat exchange cavity, 92. Sand dropping pipe, 93. Water outlet, 94. Water inlet, 95. Sand bin, 10. Molding sand elevator. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] To more clearly illustrate the technical solution of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, other embodiments obtained based on this drawing and embodiment all fall within the protection scope of the present utility model.
[0020] According to Figure 1-6 As shown, a lost foam drying room with waste heat energy supply for casting molding sand includes a drying room body 1. A number of groups of heat dissipation mechanisms 2 are fixedly installed on the inner walls of the front and rear sides of the drying room body 1. The heat dissipation mechanism 2 includes a heat dissipation cover 21, which is fixedly installed on the inner wall of the drying room body 1. One end of the heat dissipation cover 21 close to the wall is fixedly installed with a fan 22. A heat sink 23 is arranged on the front side of the fan 22, and the heat sink 23 is fixedly installed inside the heat dissipation cover 21. A number of groups of heat sinks 23 are connected to each other through a hot water delivery mechanism. An heat exchange mechanism is arranged outside the drying room body 1.
[0021] In this embodiment, the hot water delivery mechanism includes a water outlet pipe 3, which is fixedly installed on the upper right side of the drying room body 1. Two heat sink inlet pipes 4 are fixedly connected to the water outlet pipe 3, and the two heat sink inlet pipes 4 are fixedly installed on the inner wall of the drying room body 1. The water inlet ends of the heat sinks 23 on the same side are fixedly connected to the heat sink inlet pipes 4.
[0022] In this embodiment, a water pump 5 is fixedly installed on the upper left side of the drying room body 1. The water outlet end of the water pump 5 is fixedly installed with a return pipe 6, which is fixedly installed on the outer wall of the drying room body 1. The water inlet end of the water pump 5 is fixedly installed with a shunt pipe 7. Two heat sink outlet pipes 8 are fixedly connected to the shunt pipe 7, and the two heat sink outlet pipes 8 are fixedly installed on the inner wall of the drying room body 1. The water outlet ends of the heat sinks 23 on the same side are fixedly connected to the heat sink outlet pipes 8.
[0023] In this embodiment, an electric louver baffle 24 is arranged on the side of the heat dissipation cover 21 away from the wall, and the room temperature of the drying room can be adjusted by adjusting the opening amplitude of the baffle.
[0024] In this embodiment, the heat exchange mechanism includes a heat exchanger 9, which is fixedly installed on the ground through a bracket. A sand bin 95 is fixedly installed on the top of the heat exchanger 9. A molding sand elevator 10 is arranged on the side of the heat exchanger 9. The high-temperature molding sand is transported to the sand bin 95 through the molding sand elevator 10, and then enters the heat exchanger 9 through the sand bin 95 for heat exchange.
[0025] In this embodiment, a heat exchange chamber 91 is provided inside the heat exchanger 9. A number of sand dropping pipes 92 are fixedly installed in the heat exchange chamber 91. The sand dropping pipes 92 are communicated with the sand bin 95. Water outlets 93 and water inlets 94 are formed on the outer wall of the heat exchanger 9. Both the water outlets 93 and the water inlets 94 are communicated with the heat exchange chamber 91. The water outlet 93 is connected to the water outlet pipe 3, and the water inlet 94 is connected to the water return pipe 6. The water in the heat exchange chamber 91 is heated by the high-temperature molding sand. The heated water is transported to the heat sink 23 through the water outlet 93, and then returns to the heat exchange chamber 91 through the water inlet 94.
[0026] When the present utility model is in use, the high-temperature molding sand is transported to the sand bin 95 at the top of the heat exchanger 9 by the molding sand elevator 10. The molding sand in the sand bin 95 slowly slides down through the sand dropping pipes 92. The heat of the molding sand is transferred to the cold water in the heat exchange chamber 91 through the outer wall of the sand dropping pipes 92, thereby heating the cold water. After being heated, the cold water is transported into the water outlet pipe 3 through the water outlet 93 under the action of the water pump 5, and then flows through the water outlet pipe 3 to the heat sink inlet pipe 4, and finally enters each heat sink 23. The heat of the water is dissipated outward through the heat sink 23, and the fan 22 is used to quickly spread the heat to the entire drying room, thereby heating the drying room to reduce the energy consumption caused by electric heating, and further reducing the production cost. After the heat of the water in the heat sink 23 is dissipated, it returns to the heat exchanger 9 through the heat sink outlet pipe 8, the shunt pipe 7, the water pump 5 and the water return pipe 6 for reheating.
[0027] The above embodiments are only exemplary embodiments of the present utility model and are not used to limit the present utility model. The protection scope of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present utility model, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present utility model.
Claims
1. A lost foam drying room with waste heat energy supply for foundry sand, comprising a drying room body (1), characterized in that: On the inner walls of the front and rear sides of the drying room body (1), a number of groups of heat dissipation mechanisms (2) are fixedly installed. The heat dissipation mechanism (2) includes a heat dissipation cover (21), the heat dissipation cover (21) is fixedly installed on the inner wall of the drying room body (1), a blower (22) is fixedly installed at one end of the heat dissipation cover (21) close to the wall, a heat sink (23) is arranged on the front side of the blower (22), the heat sink (23) is fixedly installed inside the heat dissipation cover (21), and a number of groups of the heat sinks (23) are connected to each other through a hot water delivery mechanism. An heat exchange mechanism is arranged outside the drying room body (1).
2. The lost foam drying room for casting sand with waste heat energy supply according to claim 1, characterized in that, The hot water delivery mechanism includes a water outlet pipe (3), the water outlet pipe (3) is fixedly installed on the upper right side of the drying room body (1), two heat sink inlet pipes (4) are fixedly connected to the water outlet pipe (3), the two heat sink inlet pipes (4) are fixedly installed on the inner wall of the drying room body (1), and the water inlet ends of the heat sinks (23) on the same side are fixedly connected to the heat sink inlet pipes (4).
3. The lost foam drying room for casting molding sand with waste heat energy supply according to claim 2, characterized in that, A water pump (5) is fixedly installed on the upper left side of the drying room body (1), the water outlet end of the water pump (5) is fixedly installed with a return pipe (6), the return pipe (6) is fixedly installed on the outer wall of the drying room body (1), the water inlet end of the water pump (5) is fixedly installed with a shunt pipe (7), two heat sink outlet pipes (8) are fixedly connected to the shunt pipe (7), the two heat sink outlet pipes (8) are fixedly installed on the inner wall of the drying room body (1), and the water outlet ends of the heat sinks (23) on the same side are fixedly connected to the heat sink outlet pipes (8).
4. A lost foam drying room for supplying heat energy with the waste heat of foundry sand according to claim 3, characterized in that, An electric louver baffle (24) is arranged on the side of the heat dissipation cover (21) away from the wall.
5. A lost foam drying room for supplying heat energy with the waste heat of foundry sand according to claim 1, characterized in that, The heat exchange mechanism includes a heat exchanger (9), the heat exchanger (9) is fixedly installed on the ground, a sand bin (95) is fixedly installed on the top of the heat exchanger (9), and a green sand elevator (10) is arranged on the side of the heat exchanger (9).
6. The lost foam drying room for heat energy supply with waste heat of the casting molding sand according to claim 5, characterized in that, A heat exchange cavity (91) is arranged inside the heat exchanger (9), a number of groups of sand dropping pipes (92) are fixedly installed in the heat exchange cavity (91), the sand dropping pipes (92) are communicated with the sand bin (95), a water outlet (93) and a water inlet (94) are arranged on the outer wall of the heat exchanger (9), both the water outlet (93) and the water inlet (94) are communicated with the heat exchange cavity (91), the water outlet (93) is connected to the water outlet pipe (3), and the water inlet (94) is connected to the return pipe (6).