A waste heat recovery device for heat treatment of alloy materials

Abstract

This utility model discloses a waste heat recovery device for alloy material heat treatment, including an annealing furnace. By setting a vibration component, it can actively remove dust accumulated on the filter screen, effectively shaking off metal oxide particles, carbonaceous dust, and inorganic non-metallic dust attached to the screen. This avoids the problem of decreased filter screen permeability caused by long-term dust accumulation, maintains stable system resistance, and ensures that hot airflow can continue to pass smoothly, providing a basic guarantee for subsequent waste heat recovery efficiency. The dust collection box is inserted into the impurity removal box for easy and quick extraction and cleaning of collected dust. The hot airflow after dust removal in the impurity removal box is smoothly transported to the heat exchanger through a conveying mechanism. Because the filter screen is not easily clogged and the hot airflow is stable, the heat exchanger can continuously and efficiently exchange heat, maximizing the recovery of waste heat generated during alloy material heat treatment, improving energy utilization, and reducing production energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of alloy material heat treatment technology, specifically to a waste heat recovery device for alloy material heat treatment. Background Technology

[0002] During the annealing process of alloy materials, in addition to the release of a large amount of residual heat, dust is also generated. The main reasons include: First, some alloy materials (such as alloys containing low-melting-point elements such as zinc and magnesium) will undergo surface oxidation or element volatilization at high temperatures. The volatilized metal vapors condense into fine metal oxide particles after cooling. Second, residual processing oil, cutting fluid and other impurities on the surface of the workpiece will not burn completely at high temperatures, forming carbonaceous dust. Third, refractory materials or conveying components (such as rollers and supports) in the annealing furnace may oxidize and peel off under long-term high-temperature conditions, generating inorganic non-metallic dust.

[0003] Existing waste heat recovery devices for alloy material heat treatment typically use filters to intercept dust in high-temperature flue gas or hot air, preventing dust from entering core components such as heat exchangers and causing blockages or wear. However, these devices generally lack an active mechanism for removing dust adhering to the filter screen. As operating time increases, dust gradually accumulates on the filter screen, leading to decreased filter permeability, increased system resistance, and reduced waste heat recovery efficiency. Therefore, we need to propose a waste heat recovery device for alloy material heat treatment. Utility Model Content

[0004] The purpose of this utility model is to provide a waste heat recovery device for heat treatment of alloy materials. By setting up a vibration component, a dust collection box and a conveying mechanism, it achieves the effects of efficient dust removal, convenient dust collection and stable waste heat recovery, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waste heat recovery device for heat treatment of alloy materials includes: an annealing furnace, a conveying pipe fixedly connected to its outer wall, a removal box fixedly connected to the bottom end of the conveying pipe, and a filter screen plate provided inside the removal box;

[0007] A vibrating assembly for removing dust accumulated on a filter screen, the vibrating assembly being disposed inside a dust removal box;

[0008] A dust collection box for collecting the removed dust, the dust collection box being inserted into the interior of the dust removal box;

[0009] The hot airflow, after being cleaned of dust inside the dust removal box, is transported to the interior of the heat exchanger via a conveying mechanism.

[0010] Preferably, the vibration assembly includes a transmission rod that is slidably inserted into the top of the impurity removal box. The top end of the transmission rod passes through the impurity removal box and is connected to a vibration motor, and the bottom end of the transmission rod is fixedly connected to a hammer.

[0011] Preferably, it also includes a connecting plate, one side of which is fixedly connected to the inner wall of the impurity removal box, the top of which is fixedly connected to the bottom of the filter screen, and the bottom of the hammer head abuts against the top of the connecting plate.

[0012] Preferably, the vibration motor is fixedly installed on the top of the impurity removal box, and one end of the output shaft of the vibration motor is fixedly connected to the top end of the transmission rod.

[0013] Preferably, the conveying mechanism includes a negative pressure fan, which is fixedly connected to one side wall of the impurity removal box. A connecting pipe is fixedly connected to one side of the negative pressure fan, and one end of the connecting pipe is connected to a heat exchanger.

[0014] Preferably, both the connecting pipe and the conveying pipe are conductively connected to corrugated pipes for resisting the vibration force generated by the impurity box.

[0015] Preferably, a through groove adapted to the dust collection box is provided on one side wall of the dust removal box, and the dust collection box is inserted into the interior of the dust removal box through the through groove.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This invention, by incorporating a vibration component, can actively remove dust accumulated on the filter screen, effectively shaking off metal oxide particles, carbonaceous dust, and inorganic non-metallic dust adhering to the screen. This avoids the problem of decreased filter permeability caused by long-term dust accumulation, maintains stable system resistance, and ensures continuous and smooth flow of hot air, providing a fundamental guarantee for subsequent waste heat recovery efficiency. The dust collection box is inserted into the impurity removal box for easy and quick extraction and cleaning of collected dust. The hot airflow after dust removal is smoothly transported to the heat exchanger through a conveying mechanism. Because the filter screen is not easily clogged and the hot airflow is stable, the heat exchanger can continuously and efficiently exchange heat, maximizing the recovery of waste heat generated during the heat treatment of alloy materials, improving energy utilization, and reducing production energy consumption. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the axial side structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the impurity removal box and heat exchanger of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the impurity removal box of this utility model.

[0022] In the diagram: 1. Annealing furnace; 2. Conveying pipe; 3. Impurity removal box; 4. Filter screen; 5. Vibration assembly; 501. Transmission rod; 502. Vibration motor; 503. Hammer head; 504. Connecting plate; 6. Dust collection box; 7. Conveying mechanism; 701. Negative pressure fan; 702. Connecting pipe; 8. Heat exchanger; 9. Corrugated pipe; 10. Through groove. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4 This utility model provides a technical solution:

[0025] A waste heat recovery device for alloy material heat treatment includes: an annealing furnace 1, with a conveying pipe 2 fixedly connected to its outer wall, and a dust removal box 3 fixedly connected to the bottom end of the conveying pipe 2. A filter screen 4 is installed inside the dust removal box 3. By connecting the annealing furnace 1 and the dust removal box 3 through the conveying pipe 2, the dust in the hot air flow is filtered in conjunction with the filter screen 4, achieving the effect of preliminary purification of the hot air flow. The filter screen 4 is made of high-temperature resistant metal material, which can withstand high-temperature flue gas of 300-800℃, avoiding the effect of filtration due to high-temperature deformation.

[0026] A vibration component 5 is used to remove dust accumulated on the filter screen 4. The vibration component 5 is installed inside the dust removal box 3. By setting the vibration component 5, the dust on the filter screen 4 can be removed in a targeted manner, thereby preventing the filter screen 4 from clogging. The vibration component 5 can automatically adjust the vibration frequency according to the degree of dust accumulation on the filter screen 4. When there is a lot of dust accumulation, the frequency is increased to reduce unnecessary energy consumption.

[0027] A dust collection box 6 is used to collect the cleaned dust. The dust collection box 6 is inserted into the interior of the dust removal box 3. By setting the plug-in dust collection box 6, it is convenient to collect and process the cleaned dust in a centralized manner, thereby reducing secondary dust pollution. The inner wall of the dust collection box 6 is coated with a smooth non-stick coating to prevent dust from adhering to the box wall and being difficult to clean. At the same time, a handle is provided on the outside of the box for easy access by operators.

[0028] The hot airflow after dust removal inside the impurity removal box 3 is transported to the interior of the heat exchanger 8 through the conveying mechanism 7. By setting the conveying mechanism 7, the hot airflow after dust removal can be smoothly transported to the heat exchanger 8, achieving the effect of efficient waste heat recovery. The heat exchanger 8 adopts a finned tube structure, which increases the contact area with the hot airflow and improves the heat exchange efficiency.

[0029] The vibration assembly 5 includes a transmission rod 501, which is slidably inserted into the top of the dust removal box 3. The top end of the transmission rod 501 passes through the dust removal box 3 and is connected to a vibration motor 502. The bottom end of the transmission rod 501 is fixedly connected to a hammer head 503. By setting the transmission rod 501, the vibration motor 502 and the hammer head 503, the vibration motor 502 can drive the transmission rod 501 and the hammer head 503 to vibrate, thereby achieving the effect of providing power for dust removal. A high-temperature resistant sealing sleeve is provided at the connection between the transmission rod 501 and the dust removal box 3 to prevent hot air from leaking from the gaps and to ensure stable air pressure inside the dust removal box 3.

[0030] It also includes a connecting plate 504, one side of which is fixedly connected to the inner wall of the impurity removal box 3. The top of the connecting plate 504 is fixedly connected to the bottom of the filter screen plate 4, and the bottom of the hammer head 503 abuts against the top of the connecting plate 504. By setting the connecting plate 504, the vibration force of the hammer head 503 can be transmitted to the filter screen plate 4, thereby enhancing the vibration effect of the filter screen plate 4 and removing dust more thoroughly. The connecting plate 504 is made of elastic material, which will undergo slight deformation when it is hit by the hammer head 503, thereby evenly transmitting the vibration force to all parts of the filter screen plate 4.

[0031] The vibration motor 502 is fixedly installed on the top of the impurity removal box 3, and one end of the output shaft of the vibration motor 502 is fixedly connected to the top end of the transmission rod 501. By fixing the vibration motor 502 on the top of the impurity removal box 3 and connecting it to the transmission rod 501, the effect of ensuring stable power output of the vibration motor 502 is achieved. The outer shell of the vibration motor 502 is equipped with heat sinks, which can dissipate the heat generated during operation in a timely manner and avoid affecting the service life of the motor due to high temperature.

[0032] The conveying mechanism 7 includes a negative pressure fan 701, which is fixedly connected to one side wall of the impurity removal box 3. A connecting pipe 702 is fixedly connected to one side of the negative pressure fan 701, and one end of the connecting pipe 702 is connected to the heat exchanger 8. By setting up the negative pressure fan 701 and the connecting pipe 702, the negative pressure is used to drive the hot airflow, achieving the effect of efficiently conveying the hot airflow to the heat exchanger 8. The power of the negative pressure fan 701 can be adjusted according to the flow rate of the hot airflow to ensure the stable flow velocity of the hot airflow in the pipe and improve the stability of waste heat recovery.

[0033] Both the connecting pipe 702 and the conveying pipe 2 are connected to a corrugated pipe 9 to dampen the vibration force generated by the impurity removal box 3. By setting the corrugated pipe 9 on the connecting pipe 702 and the conveying pipe 2, the vibration of the impurity removal box 3 can be buffered, thus achieving the effect of protecting the pipeline connection and ensuring the stable operation of the device. The corrugated pipe 9 is made of high temperature resistant rubber material, which has good elasticity and corrosion resistance and can adapt to the high temperature working environment of the device.

[0034] A through groove 10 adapted to the dust collection box 6 is provided on one side wall of the dust removal box 3. The dust collection box 6 is inserted into the interior of the dust removal box 3 through the through groove 10. The through groove 10 facilitates the insertion and removal of the dust collection box 6, thus achieving the effect of easy installation, disassembly and cleaning of the dust collection box 6. A sealing gasket is provided on the inner side of the through groove 10. When the dust collection box 6 is inserted, a good seal is formed to prevent the hot air flow and dust inside the dust removal box 3 from leaking out of the through groove 10.

[0035] Working Principle: During the heat treatment of alloy materials, the annealing furnace 1 generates a dust-laden hot airflow. This hot airflow enters the dust removal box 3 through the conveying pipe 2. As it flows through the filter screen 4, metal oxide particles and carbonaceous dust in the hot airflow are intercepted by the filter screen 4, achieving initial dust removal. When a certain amount of dust accumulates on the filter screen 4, the vibration motor 502 starts, driving the transmission rod 501 and hammer 503 to vibrate. The hammer 503 continuously strikes the connecting plate 504, which transmits the vibration force to the filter screen 4, causing the dust on the filter screen 4 to be shaken off and fall into the dust collection box 6. The dust collection box 6 is inserted into the dust removal box 3 through the through slot 10 and can be periodically removed for cleaning to prevent dust accumulation. After dust removal, the hot airflow, under the action of the negative pressure fan 701, enters the heat exchanger 8 through the connecting pipe 702. The hot airflow exchanges heat with the medium inside the heat exchanger 8, achieving waste heat recovery. During the operation of the device, the corrugated pipe 9 on the connecting pipe 702 and the conveying pipe 2 can buffer the impact force generated by the vibration of the impurity removal box 3, protect the pipeline connection, and ensure the stable operation of the entire device.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waste heat recovery device for heat treatment of alloy materials, characterized in that, include: An annealing furnace (1) has a conveying pipe (2) fixedly connected to its outer wall. The bottom end of the conveying pipe (2) is fixedly connected to a cleaning box (3). A filter screen (4) is installed inside the cleaning box (3). A vibration assembly (5) for removing dust accumulated on the filter screen (4) is disposed inside the dust removal box (3); A dust collection box (6) for collecting the removed dust is inserted into the interior of the dust removal box (3); The hot airflow after dust removal inside the dust removal box (3) is transported to the interior of the heat exchanger (8) through the conveying mechanism (7).

2. The waste heat recovery device for heat treatment of an alloy according to claim 1, characterized by: The vibration assembly (5) includes a transmission rod (501), which is slidably inserted into the top of the impurity removal box (3). The top end of the transmission rod (501) passes through the impurity removal box (3) and is connected to a vibration motor (502). The bottom end of the transmission rod (501) is fixedly connected to a hammer (503).

3. The waste heat recovery device for heat treatment of an alloy according to claim 2, characterized by: It also includes a connecting plate (504), one side of which is fixedly connected to the inner wall of the impurity removal box (3), the top of which is fixedly connected to the bottom of the filter screen plate (4), and the bottom of the hammer (503) abuts against the top of the connecting plate (504).

4. The waste heat recovery device for heat treatment of an alloy according to claim 3, characterized by: The vibration motor (502) is fixedly installed on the top of the impurity removal box (3), and one end of the output shaft of the vibration motor (502) is fixedly connected to the top end of the transmission rod (501).

5. The waste heat recovery device for heat treatment of alloy materials according to claim 1, characterized in that: The conveying mechanism (7) includes a negative pressure fan (701), which is fixedly connected to one side wall of the impurity removal box (3). A connecting pipe (702) is fixedly connected to one side of the negative pressure fan (701), and one end of the connecting pipe (702) is connected to the heat exchanger (8).

6. The waste heat recovery device for heat treatment of an alloy according to claim 5, characterized by: Both the connecting pipe (702) and the conveying pipe (2) are connected to a corrugated pipe (9) for resisting the vibration force generated by the impurity box (3).

7. The waste heat recovery device for heat treatment of an alloy according to claim 1, characterized by: The dust removal box (3) has a through groove (10) on one side wall that is compatible with the dust collection box (6), and the dust collection box (6) is inserted into the interior of the dust removal box (3) through the through groove (10).

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