High-temperature flue gas recycling raw sand heating device

Abstract

The utility model discloses a kind of high-temperature flue gas recycling's raw sand heating device, including device ontology, the device ontology side is equipped with heat exchanger, the heat exchanger side is equipped with pipeline, the pipeline both ends are fixedly connected flange, the quantity of the flange disc is equipped with two, the pipeline side is equipped with induced draft fan. This one kind of high-temperature flue gas recycling's raw sand heating device, by heat exchanger in device ontology side installation, heat exchanger side installation has pipeline, pipeline side installation has induced draft fan, when applying the device ontology, pipeline is connected with heat exchanger and induced draft fan by flange, flue gas is the product after processing by induced draft fan and is guided to heat exchanger group to secondary heating for preheating raw sand, effectively improve raw material temperature. With the holding of this device, part of discharge can be realized self-circulation, and the discharge amount is reduced, the flue gas emission of regenerated sand roasting treatment equipment is about ninety degrees Celsius or so, and the recovered heat energy is reasonably utilized to realize energy saving, yield increase and cost reduction.

Description

Technical Field

[0001] This utility model belongs to the field of raw sand processing technology, and in particular relates to a raw sand heating device for high-temperature flue gas reuse. Background Technology

[0002] Raw sand is the most basic material used for molding in casting production. Among them, the most widely used is quartz sand, commonly known as silica sand. When heating it, a raw sand heating device is required.

[0003] The raw sand heating devices currently on the market have the following problems when used: Traditional raw sand heating devices generally heat the raw sand directly, which generally requires a lot of cost in the process of recycled sand production, making them inconvenient to use. Utility Model Content

[0004] The purpose of this invention is to provide a raw sand heating device for the reuse of high-temperature flue gas, so as to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows: A raw sand heating device for high-temperature flue gas reuse includes a device body, a heat exchanger is provided on the side of the device body, a pipe is provided on the side of the heat exchanger, flanges are fixedly connected to both ends of the pipe, and there are two flanges. An induced draft fan is provided on the side of the pipe.

[0006] Preferably, a first mounting ring is fitted onto the outside of the flange, and a second mounting ring is fitted onto the outside of the flange. A first fixing plate is fixedly connected to the side of the first mounting ring, and a second fixing plate is fixedly connected to the side of the second mounting ring. A sealing gasket is embedded inside the first and second mounting rings.

[0007] Preferably, a threaded rod is fixedly connected to the surface of the second fixing plate, the threaded rod is inserted inside the first fixing plate, and an internal threaded seat is sleeved on the outside of the threaded rod.

[0008] Preferably, a turntable is fixedly connected to the surface of the internal thread seat, and the turntable is symmetrically distributed.

[0009] Preferably, a plug plate is fixedly connected to the side of the first mounting ring, and a slot is opened on the side of the second mounting ring, into which the plug plate is inserted.

[0010] Preferably, handles are fixedly connected to the sides of the first and second mounting rings, and the handles are symmetrically distributed.

[0011] This utility model discloses a high-temperature flue gas reuse raw sand heating device with the following advantages: The device features a heat exchanger installed on the side of the main body, with pipes mounted on the side of the heat exchanger. Two flanges are fixedly connected to both ends of the pipes. An induced draft fan is installed on the side of the pipes. In operation, the pipes are interconnected with the heat exchanger and induced draft fan via the flanges. The treated flue gas is drawn by the induced draft fan to the heat exchanger assembly for secondary heating to preheat the raw sand, effectively increasing the raw material temperature. With this device, a portion of the emissions is self-circulated, reducing emissions. The flue gas emission from the recycled sand roasting equipment is approximately 90 degrees Celsius. This efficient use of recovered heat energy achieves energy saving, increased production, and reduced costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the flange structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the second mounting ring structure of this utility model;

[0016] Figure 4 For the present utility model Figure 3 Enlarged view of section A in the middle.

[0017] The markings in the diagram are as follows: 1. Device body; 2. Heat exchanger; 3. Pipeline; 4. Exhaust fan; 5. First mounting ring; 6. Second mounting ring; 7. Insert plate; 8. Slot; 9. Flange; 10. First fixing plate; 11. Second fixing plate; 12. Handle; 13. Sealing gasket; 14. Internal threaded seat; 15. Threaded rod; 16. Turntable. Detailed Implementation

[0018] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0019] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0021] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0022] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0023] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a raw sand heating device for high-temperature flue gas reuse.

[0024] like Figure 1-4As shown, this utility model discloses a high-temperature flue gas reuse raw sand heating device, comprising a device body 1, a heat exchanger 2 mounted on the side of the device body 1, a pipe 3 mounted on the side of the heat exchanger 2, and flanges 9 fixedly connected to both ends of the pipe 3 (two flanges 9 in total). An induced draft fan 4 is mounted on the side of the pipe 3. By installing the heat exchanger 2 on the side of the device body 1, the pipe 3 mounted on the side of the heat exchanger 2, and flanges 9 fixedly connected to both ends of the pipe 3 (two flanges 9 in total), and the induced draft fan 4 mounted on the side of the pipe 3, when using this heating device, the pipe 3 is interconnected with the heat exchanger 2 and the induced draft fan 4 via the flanges 9. The flue gas, which is the treated product, is drawn by the induced draft fan 4 to the heat exchanger 2 for secondary heating to preheat the raw sand, effectively increasing the raw material temperature. With the addition of this device, a portion of the emissions is self-circulated, reducing emissions. The flue gas emission from the recycled sand roasting equipment is approximately 90 degrees Celsius, achieving energy saving, increased production, and reduced costs through the rational utilization of recovered heat energy.

[0025] A first mounting ring 5 is fitted onto the outside of flange 9, and a second mounting ring 6 is fitted onto the outside of flange 9. A first fixing plate 10 is fixedly connected to the side of the first mounting ring 5, and a second fixing plate 11 is fixedly connected to the side of the second mounting ring 6. A sealing gasket 13 is embedded inside the first mounting ring 5 and the second mounting ring 6. By fitting the first mounting ring 5 and the second mounting ring 6 onto the outside of flange 9, and fixing them with the first fixing plate 10 and the second fixing plate 11, the sealing gasket 13 can seal flange 9.

[0026] The threaded rod 15 is fixedly connected to the surface of the second fixing plate 11. The threaded rod 15 is inserted inside the first fixing plate 10. The threaded rod 15 is sleeved with an internal threaded seat 14. By installing the threaded rod 15 on the surface of the second fixing plate 11 and sleeved with an internal threaded seat 14, the first mounting ring 5 and the second mounting ring 6 can be fixed together by inserting the threaded rod 15 inside the first fixing plate 10 and rotating the internal threaded seat 14.

[0027] The internal thread seat 14 is fixedly connected to a turntable 16, which is symmetrically distributed. By mounting the turntable 16 on the surface of the internal thread seat 14, the internal thread seat 14 can be easily rotated by holding the turntable 16.

[0028] The first mounting ring 5 is fixedly connected to the insert plate 7 on its side, and the second mounting ring 6 has a slot 8 on its side. The insert plate 7 is inserted into the slot 8. By installing the insert plate 7 on the side of the first mounting ring 5 and the slot 8 on the side of the second mounting ring 6, the first mounting ring 5 and the second mounting ring 6 can be initially fixed by inserting the insert plate 7 into the slot 8.

[0029] Handles 12 are fixedly connected to the sides of the first mounting ring 5 and the second mounting ring 6. The handles 12 are symmetrically distributed. By attaching handles 12 to the sides of the first mounting ring 5 and the second mounting ring 6, the first mounting ring 5 and the second mounting ring 6 can be easily pulled apart by holding the handles 12.

[0030] The working principle of this high-temperature flue gas reuse raw sand heating device is as follows: When using this raw sand heating device, pipe 3 is connected to heat exchanger 2 and induced draft fan 4 via flange 9. The raw sand to be processed can then be added into the device. The first mounting ring 5 and the second mounting ring 6 are fitted onto the outside of flange 9. Inserting the insert plate 7 into the slot 8 provides initial fixation. Inserting the threaded rod 15 into the first fixing plate 10 and rotating the internal threaded seat 14 while holding the turntable 16 secures the first mounting ring 5 and the second mounting ring 6 together. At this point, the sealing gasket 13 seals flange 9. The flue gas, representing the processed product, is drawn by induced draft fan 4 to heat exchanger group 2 for secondary heating to preheat the raw sand, effectively increasing the raw material temperature. With this device, a portion of the emissions is self-circulated, reducing emissions. The flue gas emission from the recycled sand roasting equipment is approximately 90 degrees Celsius. This rational utilization of recovered heat energy achieves energy saving, increased production, and reduced costs.

[0031] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A raw sand heating device for high-temperature flue gas reuse, comprising a device body (1), characterized in that: The device body (1) has a heat exchanger (2) on its side, and a pipe (3) on its side. The two ends of the pipe (3) are fixedly connected to flanges (9). There are two flanges (9). The pipe (3) has an induced draft fan (4) on its side.

2. The raw sand heating device for high-temperature flue gas reuse according to claim 1, characterized in that: The flange (9) is fitted with a first mounting ring (5) on its outside and a second mounting ring (6) on its outside. The first mounting ring (5) is fixedly connected to a first fixing plate (10) on its side and the second mounting ring (6) is fixedly connected to a second fixing plate (11) on its side. The first mounting ring (5) and the second mounting ring (6) are fitted with sealing gaskets (13).

3. The raw sand heating device for high-temperature flue gas reuse according to claim 2, characterized in that: A threaded rod (15) is fixedly connected to the surface of the second fixing plate (11). The threaded rod (15) is inserted inside the first fixing plate (10), and an internal threaded seat (14) is sleeved on the outside of the threaded rod (15).

4. The raw sand heating device for high-temperature flue gas reuse according to claim 3, characterized in that: The internal thread seat (14) is fixedly connected to a turntable (16), which is symmetrically distributed.

5. The raw sand heating device for high-temperature flue gas reuse according to claim 2, characterized in that: The first mounting ring (5) is fixedly connected to the insert plate (7) on its side, and the second mounting ring (6) has a slot (8) on its side, and the insert plate (7) is inserted into the slot (8).

6. The raw sand heating device for high-temperature flue gas reuse according to claim 2, characterized in that: The first mounting ring (5) and the second mounting ring (6) are fixedly connected to the handles (12) on their sides, and the handles (12) are symmetrically distributed.

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