Nodular cast iron heat treatment device

Abstract

The utility model particularly relates to the technical field of nodular cast iron production, and discloses a nodular cast iron heat treatment device which comprises a heating furnace, a communicating pipe is inserted into the top end of the heating furnace, a second water tank is fixedly arranged at the top end, close to the communicating pipe, of the heating furnace, and a steel pipe is inserted into the top end of the communicating pipe. An air blower is fixedly arranged at the top end, close to the second water tank, of the heating furnace, and the other end of the steel pipe penetrates through the top end of the second water tank and is inserted into an air inlet in the top end of the air blower. By arranging the communicating pipe, the second water tank, the steel pipe and the air blower, the communicating pipe is inserted into the top end of the heating furnace to be communicated with the steel pipe, the air blower is started to accelerate waste gas circulation, the steel pipe is inserted in an S shape and penetrates through the second water tank, the contact area with water can be increased, and therefore the heat exchange efficiency of water and the steel pipe is improved; residual heat can be conveniently transmitted to a water source, and heat loss is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of ductile iron production, and in particular relates to a ductile iron heat treatment device. Background Art

[0002] Ductile iron is a cast iron material with good mechanical properties and high tensile strength. In order to further improve the performance of ductile iron, heat treatment is usually required. The purpose of the heat treatment device for ductile iron castings is to improve the organizational structure of ductile iron through heating and cooling processes, and improve its strength, toughness and wear resistance. Different heat treatment processes can achieve different effects, such as annealing, normalizing, quenching, etc.

[0003] The existing graphite cast iron heat treatment device needs to discharge exhaust gas through a pipeline during use. When the exhaust gas is discharged, it will carry a large amount of heat energy, resulting in heat waste. Utility Model Content

[0004] The utility model provides a ductile iron heat treatment device, aiming to solve the problem that the existing ductile iron heat treatment device needs to discharge tail gas through a pipeline during use, and when the tail gas is discharged, it will carry a large amount of heat energy, thus causing heat waste.

[0005] The utility model is implemented as follows: a ductile iron heat treatment device includes a heating furnace, a connecting pipe is inserted at the top of the heating furnace, a water tank 2 is fixedly arranged near the top of the connecting pipe, a steel pipe is inserted at the top of the connecting pipe, the steel pipe is inserted in an S-shape inside the water tank 2, a blower is fixedly arranged near the top of the water tank 2 in the heating furnace, the other end of the steel pipe penetrates through the top of the water tank 2 and is inserted at the air inlet at the top of the blower, and a filter cartridge is inserted at the air outlet on the side wall of the blower.

[0006] Preferably, two groups of blocks are symmetrically fixed on the inner wall of the heating furnace, and the top ends of the two groups of blocks are clamped with support frames, which are made of steel and are in a grid shape, so as to facilitate the placement of ductile iron.

[0007] Preferably, a furnace door is rotatably connected to the side wall of the heating furnace, and the outer dimensions of the furnace door are matched with the outer dimensions of the end of the heating furnace, thereby improving the sealing performance of the heating furnace.

[0008] Preferably, water tank one is fixedly provided near the top of water tank two of the heating furnace, a booster pump is fixedly provided at the top of water tank one, a water outlet of the booster pump is plugged with pipe two, the other end of pipe two is plugged with the top of water tank two, a water inlet of the side wall of the booster pump is plugged with pipe one, and pipe one penetrates the top of water tank one and is inserted into the inner bottom to facilitate water injection into water tank two.

[0009] Preferably, a port is provided at the top of the water tank one, the port is connected to the interior of the water tank one, a pipe three is plugged into the top of the water tank one near the port, and the other end of the pipe three is plugged into the top of the water tank two to facilitate water circulation.

[0010] Preferably, the water tank 2 is made of a composite material of plastic and stainless steel for storing cold water, and the steel pipe is made of stainless steel, which improves the efficiency of heat exchange of the steel pipe.

[0011] Preferably, filter cotton is clamped inside the filter cartridge, and an end cap is threadedly connected to the end of the filter cartridge, thereby improving the cleanliness of exhaust gas emissions.

[0012] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0013] Firstly, a connecting pipe, a second water tank, a steel pipe and a blower are provided. The connecting pipe is plugged into the top of the heating furnace to connect the steel pipe. Starting the blower can accelerate the flow of exhaust gas through the steel pipe. The steel pipe is plugged in an S shape and runs through the interior of the second water tank, which can increase the contact area with water, thereby improving the heat exchange efficiency between water and the steel pipe, and facilitating the transfer of residual heat to the water source, thereby reducing heat loss. Secondly, a first water tank, a first pipe, a second pipe, a third pipe and a port are provided. Starting the booster pump can pump cold water into the interior of the second water tank and deliver hot water to the first water tank, thereby realizing the circulation heating of hot water and facilitating the use of hot water from the port. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 For the utility model Figure 1 Enlarged structural diagram at A in the middle.

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the water tank of the utility model.

[0017] Figure 4 It is a schematic diagram of the front cross-sectional structure of the filter cartridge of the present utility model.

[0018] The accompanying drawings are marked as follows: 1. Heating furnace; 2. Connecting pipe; 3. Water tank one; 4. Water tank two; 5. Steel pipe; 6. Blower; 7. Filter cartridge; 8. Block; 9. Support frame; 10. Furnace door; 11. Booster pump; 12. Pipeline one; 13. Pipeline two; 14. Pipeline three; 15. Port; 16. Filter cotton; 17. End cover. DETAILED DESCRIPTION

[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0020] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0021] See also Figure 1-4 The utility model provides an embodiment of a ductile iron heat treatment device, comprising a heating furnace 1, two groups of blocks 8 are symmetrically fixed on the inner side wall of the heating furnace 1, and the tops of the two groups of blocks 8 are clamped with support frames 9 for convenient placement of ductile iron. The support frames 9 are made of steel and are in a grid shape for convenient heat transmission. A furnace door 10 is rotatably connected to the side wall of the heating furnace 1. The external dimensions of the furnace door 10 are adapted to the external dimensions of the end of the heating furnace 1. The heating furnace 1 can be closed by rotating the furnace door 10. A connecting pipe 2 is inserted at the top of the heating furnace 1 and is connected to the inside of the heating furnace 1 for exhaust. A water tank 4 is fixed near the top of the connecting pipe 2 of the heating furnace 1 by bolts. The water tank 4 is made of plastic and stainless steel. The composite material is used to place cold water. A steel pipe 5 is inserted at the top of the connecting pipe 2. The steel pipe 5 is S-shaped and inserted into the inside of the water tank 4. The steel pipe 5 is made of stainless steel, which improves the heat exchange efficiency of the steel pipe 5 when it contacts with water inside the water tank 4. A blower 6 is fixedly provided on the heating furnace 1 near the top of the water tank 4. The other end of the steel pipe 5 passes through the top of the water tank 4 and is inserted into the air inlet at the top of the blower 6. The air outlet on the side wall of the blower 6 is inserted with a filter cartridge 7 for filtering exhaust gas. Starting the blower 6 can accelerate the flow of exhaust gas through the steel pipe 5, which facilitates the transfer of residual heat from the steel pipe 5 to the water source inside the water tank 4, thereby heating the water. The heated water can be used for daily use, thereby reducing energy loss and waste.

[0022] A water tank 3 is fixedly provided at the top of the heating furnace 1 near the water tank 2 4 by bolts for placing water to be heated, a booster pump 11 is fixedly provided at the top of the water tank 3, a pipe 2 13 is plugged into the water outlet of the booster pump 11, the other end of the pipe 2 13 is plugged into the top of the water tank 2 4, a pipe 12 is plugged into the water inlet of the side wall of the booster pump 11, the pipe 12 penetrates the top of the water tank 3 and is inserted into the inner bottom, the booster pump 11 can be started to inject the water inside the water tank 3 into the water tank 2 4, a port 15 is provided at the top of the water tank 3 for taking water and injecting water, the port 15 is connected to the inside of the water tank 3, a pipe 3 14 is plugged into the top of the water tank 3 near the port 15, the other end of the pipe 3 14 is plugged into the top of the water tank 2 4, the hot water inside the water tank 2 4 enters the water tank 3 under pressure, thereby facilitating water circulation.

[0023] The filter cartridge 7 has filter cotton 16 clamped inside, and the end of the filter cartridge 7 is threadedly connected with an end cap 17 for limiting the displacement of the filter cotton 16. The filter cotton 16 is activated carbon filter cotton for filtering impurities in the exhaust gas, thereby improving the cleanliness of the exhaust gas emission.

[0024] Working principle: When using this type of ductile iron heat treatment device, the operator first connects an external power supply, evenly places the ductile cast iron to be annealed and heated on the surface of the support frame 9, turns the furnace door 10 to close the heating furnace 1, and then starts the heating furnace 1 to generate heat to heat the cast iron inside the heating furnace 1. The generated exhaust gas is discharged from the steel pipe 5 through the connecting pipe 2. Starting the blower 6 can accelerate the circulation of the exhaust gas. When the exhaust gas enters the interior of the steel pipe 5, the steel pipe 5 is S-shaped and inserted and passes through the interior of the water tank 4, which can increase the contact area between the interior of the water tank 4 and the water, thereby improving the heat exchange efficiency between the water and the steel pipe 5, and facilitating the transfer of residual heat to the water source inside the water tank 4. The heated water can be used for daily use, thereby reducing heat loss.

[0025] Secondly, starting the booster pump 11 can pump cold water into the interior of the water tank 2 4 and deliver hot water to the water tank 1 3, thereby realizing the circulating heating of hot water and making it convenient to take hot water from the port 15.

[0026] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the utility model is not limited by the described action sequence, because according to the utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the utility model.

[0027] In the several embodiments provided in the present application, it should be understood that the disclosed devices can be implemented in other ways. For example, the device embodiments described above are merely schematic, such as the division of the above-mentioned units. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or communication connection shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be in the form of telecommunication or other forms.

[0028] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0029] The above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Although the utility model has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the utility model according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the utility model in essence, and these technical solutions also belong to the scope of protection of the utility model.

Claims

1. A ductile iron heat treatment device, characterized in that: The invention comprises a heating furnace (1): a connecting pipe (2) is inserted at the top of the heating furnace (1); a water tank (4) is fixedly arranged near the top of the connecting pipe (2) of the heating furnace (1); a steel pipe (5) is inserted at the top of the connecting pipe (2); the steel pipe (5) is inserted in an S-shape inside the water tank (4); a blower (6) is fixedly arranged near the top of the water tank (4) of the heating furnace (1); the other end of the steel pipe (5) passes through the top of the water tank (4) and is inserted into the air inlet at the top of the blower (6); and a filter cartridge (7) is inserted at the air outlet on the side wall of the blower (6).

2. A ductile iron heat treatment device according to claim 1, characterized in that: Two groups of clamping blocks (8) are symmetrically fixed on the inner side wall of the heating furnace (1), and the top ends of the two groups of clamping blocks (8) are clamped with support frames (9), and the support frames (9) are made of steel and are in a grid shape.

3. A ductile iron heat treatment device according to claim 2, characterized in that: A furnace door (10) is rotatably connected to the side wall of the heating furnace (1), and the external dimensions of the furnace door (10) are compatible with the external dimensions of the end of the heating furnace (1).

4. A ductile iron heat treatment device according to claim 3, characterized in that: The heating furnace (1) is fixedly provided with a water tank (3) near the top of the water tank (4), and a booster pump (11) is fixedly provided at the top of the water tank (3). A pipe (13) is inserted into the water outlet of the booster pump (11), and the other end of the pipe (13) is inserted into the top of the water tank (4). A pipe (12) is inserted into the water inlet of the side wall of the booster pump (11), and the pipe (12) passes through the top of the water tank (3) and is inserted into the inner bottom.

5. A ductile iron heat treatment device according to claim 4, characterized in that: The top of the water tank one (3) is provided with a port (15), the port (15) is connected to the interior of the water tank one (3), the top of the water tank one (3) near the port (15) is plugged with a pipe three (14), and the other end of the pipe three (14) is plugged into the top of the water tank two (4).

6. A ductile iron heat treatment device according to claim 1, characterized in that: The second water tank (4) is made of a composite material of plastic and stainless steel and is used to store cold water, and the steel pipe (5) is made of stainless steel.

7. The ductile iron heat treatment device according to claim 1, characterized in that: The filter cartridge (7) has filter cotton (16) clamped inside it, and the end of the filter cartridge (7) is threadedly connected with an end cap (17).

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