Waste heat recovery continuous casting withdrawal and straightening machine water cooling cover

Abstract

The utility model relates to the technical field of withdrawal and straightening machines, and provides a waste heat recovery continuous casting withdrawal and straightening machine water cooling cover which comprises a cover frame, a collecting box is arranged at the lower end of the cover frame, a cooling spraying assembly is arranged in the cover frame, and a filtering recovery assembly is arranged in the collecting box; the cooling spraying assembly comprises a liquid inlet insertion pipe, a liquid outlet pipe is arranged at the inner top of the cover frame, and a high-pressure spray head is arranged on the lower end face of the liquid outlet pipe and communicates with the liquid inlet cavity. By means of the technical scheme, the problems that in the prior art, a simple water cooling system is usually adopted in a cooling mode of a traditional continuous casting withdrawal and straightening machine, although a certain cooling effect can be achieved, many defects exist, on one hand, the water cooling system is low in cooling liquid utilization efficiency, a large amount of cooling liquid is directly discharged after taking away heat, and the cooling effect is poor are solved. The waste of water resources is caused; and on the other hand, a large amount of waste heat carried in discharged hot water is also wasted.

Description

Technical Field

[0001] The embodiments disclosed herein relate to the field of tension straightening machine technology, and more specifically, to a water-cooled cover for a waste heat recovery continuous casting tension straightening machine. Background Technology

[0002] In the steel production process, the continuous casting straightening machine is one of the important pieces of equipment. It plays a key role in the continuous casting production line by drawing and straightening the billet. During operation, the continuous casting straightening machine generates a lot of heat due to direct contact with the high-temperature billet and its own mechanical movement. If this heat cannot be dissipated in a timely and effective manner, it will cause the equipment temperature to be too high, which will affect the performance, accuracy and service life of the equipment, increase the maintenance cost and downtime, and may even cause safety accidents.

[0003] Traditional continuous casting straightening machines typically employ simple water cooling systems. While these systems can achieve some cooling effect, they also have several drawbacks. On the one hand, these water cooling systems have low efficiency in utilizing coolant, with a large amount of coolant being discharged directly after carrying away heat, resulting in a waste of water resources. On the other hand, a large amount of waste heat carried by the discharged hot water is also wasted, which does not meet the development requirements of modern industry for energy conservation, emission reduction, and improved energy efficiency.

[0004] With the intensification of competition in the steel industry and the increasing demands for energy conservation and environmental protection, how to effectively recover the waste heat generated by continuous casting straightening machines and achieve efficient cooling has become a key issue of concern for steel companies and related researchers. Developing a water-cooled cover for continuous casting straightening machines that can recover waste heat is of great practical significance for improving the energy utilization efficiency of steel production, reducing production costs, and reducing environmental pollution.

[0005] This waste heat recovery continuous casting straightening machine water cooling cover was developed in this context. Through reasonable structural design, it integrates functions such as cooling spray, coolant collection, filtration and waste heat recovery into one unit, aiming to solve the problems of energy waste and low cooling efficiency of traditional water cooling systems, and provide technical support for the sustainable development of the steel industry. Utility Model Content

[0006] To overcome the above-mentioned defects, the embodiments of this disclosure provide a water-cooled cover for a waste heat recovery continuous casting straightening machine, which solves the problem that the traditional cooling method of continuous casting straightening machines in the prior art usually adopts a simple water-cooling system. Although it can achieve a certain cooling effect, it has many drawbacks. On the one hand, these water-cooling systems have low utilization efficiency of coolant, and a large amount of coolant is directly discharged after carrying away heat, resulting in a waste of water resources. On the other hand, a large amount of waste heat carried in the discharged hot water is also wasted.

[0007] According to one aspect, at least one embodiment of this disclosure provides a water-cooled shroud for a waste heat recovery continuous casting straightening machine, comprising:

[0008] A cover frame, wherein a collection box is provided at the lower end of the cover frame;

[0009] A cooling spray assembly is disposed inside the cover frame;

[0010] A filtration and recovery assembly is disposed within the collection box;

[0011] The cooling spray assembly includes a liquid inlet tube disposed on the cover frame. The cover frame has an inlet chamber connected to the liquid inlet tube. The top inner part of the cover frame has an outlet pipe, and the lower end face of the outlet pipe has a high-pressure nozzle connected to the inlet chamber.

[0012] As a further technical solution, the lower end face of the cover frame is provided with an inclined collection cover, and the interior of the inclined collection cover is provided with a liquid outlet groove.

[0013] As a further technical solution, the filtration and recovery assembly includes a semi-circular filter cover, which is disposed inside the collection box. A flow guide block is provided on the inner bottom surface of the collection box, and a filter screen is provided at the upper edge of the flow guide block.

[0014] As a further technical solution, the side wall of the collection box is provided with a cleaning port, and the side wall of the cleaning port is provided with a connecting pin, and a sealing cap is connected to the connecting pin.

[0015] As a further technical solution, the liquid outlet tank is provided with a liquid outlet, and a discharge pipe is provided on the liquid outlet, and the discharge pipe is connected to the collection box.

[0016] As a further technical solution, the collection box is provided with a connector, and the lower end of the outlet pipe is inserted into the connector.

[0017] As a further technical solution, a residue interception cover is provided in the liquid outlet tank, and the two sides of the residue interception cover are fixedly connected to the inclined collection cover.

[0018] As a further technical solution, the opposite side walls of the cover frame are provided with mounting frames, and the side walls of the mounting frames are provided with bolt positioning grooves.

[0019] The beneficial effects of the embodiments disclosed herein are as follows:

[0020] 1. In this disclosure, a cooling spray assembly consisting of an inlet chamber, an outlet pipe, and a high-pressure nozzle is provided inside the cover frame. The high-pressure nozzle can spray the coolant at high speed in the form of fine droplets, which increases the contact area and heat exchange efficiency between the coolant and the continuous casting straightening machine. This can quickly and effectively remove the heat from the equipment, achieve efficient cooling of the continuous casting straightening machine, help maintain the normal operating temperature of the equipment, and improve the equipment performance and service life.

[0021] 2. In this disclosure, the water-cooled cover is equipped with a filtration and recovery component, which can filter the collected coolant to purify it and facilitate subsequent recycling. At the same time, the filtered coolant stored in the collection tank can be transported to the waste heat recovery system to realize the recovery and utilization of waste heat. This not only avoids the waste of coolant and saves water resources, but also converts the originally wasted waste heat into usable energy, improves energy utilization efficiency, and meets the development requirements of energy conservation and environmental protection. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments of this disclosure will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this disclosure and these drawings without any creative effort.

[0023] Figure 1 This is a schematic diagram of a structure in one embodiment of the present disclosure;

[0024] Figure 2 This is a cross-sectional view of the enclosure frame of this disclosure;

[0025] Figure 3 This is another cross-sectional view of the enclosure frame of this disclosure;

[0026] Figure 4 This is a cross-sectional view of the collection box disclosed herein;

[0027] In the diagram: 1. Cover frame; 2. Collection box; 3. Cooling spray assembly; 3-1. Liquid inlet pipe; 3-2. Liquid inlet chamber; 3-3. Liquid outlet pipe; 3-4. High-pressure nozzle; 3-5. Inclined collection cover; 3-6. Liquid outlet trough; 4. Filtration and recovery assembly; 4-1. Semi-circular filter cover; 4-2. Flow guide block; 4-3. Filter screen cover; 4-4. Cleaning port; 4-5. Connecting pin; 4-6. Sealing cap; 5. Liquid outlet; 6. Discharge pipe; 7. Connecting pipe; 8. Residue interception cover; 9. Mounting frame; 10. Bolt positioning groove. Detailed Implementation

[0028] The present disclosure will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present disclosure and are not intended to limit the scope of the disclosure.

[0029] To keep the drawings concise, each drawing only schematically shows the parts relevant to the disclosure; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0030] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly, encompassing fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections via an intermediate medium; and connections within two components. Those skilled in the art can understand the specific meaning of these terms in this disclosure based on the specific circumstances.

[0031] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to 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 this disclosure.

[0033] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] like Figures 1-4 As shown, it illustrates a water-cooled cover for a waste heat recovery continuous casting straightening machine according to this disclosure, comprising:

[0035] Cover frame 1, with a collection box 2 installed at the lower end of cover frame 1;

[0036] Cooling spray component 3 is installed inside the cover frame 1;

[0037] Filtering and recycling component 4 is installed inside collection box 2;

[0038] The cooling spray assembly 3 includes an inlet pipe 3-1, which is mounted on the cover frame 1. The inside of the cover frame 1 is provided with an inlet chamber 3-2, which is connected to the inlet pipe 3-1. An outlet pipe 3-3 is provided at the top inner side of the cover frame 1, and a high-pressure nozzle 3-4 is provided at the lower end face of the outlet pipe 3-3, which is connected to the inlet chamber 3-2.

[0039] The filtration and recovery assembly 4 includes a semi-circular filter cover 4-1, which is located inside the collection box 2. A guide block 4-2 is provided on the inner bottom surface of the collection box 2, and a filter screen 4-3 is provided at the upper edge of the guide block 4-2.

[0040] In some examples, an inlet pipe 3-1 is installed on the cover frame 1. It must be ensured that it achieves a sealed connection with the inlet chamber 3-2 inside the cover frame 1. This can be achieved through welding or flange connection to prevent coolant leakage. An outlet pipe 3-3 is installed appropriately at the top inner side of the cover frame 1. The installation spacing of the outlet pipes 3-3 should be determined according to the dimensions of the straightening machine. After installation, a high-pressure nozzle 3-4 is installed on the lower end face of the outlet pipe 3-3, ensuring that the high-pressure nozzle 3-4 remains in communication with the inlet chamber 3-2. A semi-circular filter cover 4-1 is installed inside the collection tank 2, and a filter is installed on the inner bottom surface of the collection tank 2. The function of the guide block 4-2 is to guide the coolant flow to the filter screen 4-3. Therefore, its installation angle must be precisely calculated. The inlet pipe 3-1 is connected to the external coolant source to ensure that the coolant can smoothly enter the cooling spray component 3 of the water-cooled cover. The coolant flowing into the collection tank 2 first undergoes preliminary filtration through the semi-circular filter screen 4-1, and then is guided by the guide block 4-2 to the filter screen 4-3 for further filtration. The filtered coolant can be recovered through other pipes on the collection tank 2 and recycled after treatment, thereby achieving the purpose of waste heat recovery.

[0041] like Figures 1-4 As shown in the figure, this embodiment proposes that the lower end face of the cover frame 1 is provided with an inclined collection cover 3-5, and the interior of the inclined collection cover 3-5 is provided with a liquid outlet groove 3-6.

[0042] In some examples, the inclined collection hood 3-5 is installed at the lower end of the hood frame 1, so that the liquid outlet trough 3-6 and the liquid outlet pipe 3-3 are in the right position to prepare for the subsequent flow and collection of coolant.

[0043] like Figure 4 As shown, the side wall of the collection box 2 is provided with a cleaning port 4-4, and the side wall of the cleaning port 4-4 is provided with a connecting pin 4-5. The connecting pin 4-5 is connected to a sealing cap 4-6 by a pin shaft.

[0044] In some examples, the cleaning port 4-4 is used to facilitate the cleaning of filtered impurities. A connecting pin 4-5 is installed on the side wall of the cleaning port 4-4, and then the sealing cap 4-6 is connected through the connecting pin 4-5 to ensure the sealing of the cleaning port 4-4.

[0045] like Figure 2 As shown, an outlet 5 is provided in the outlet tank 3-6, and a discharge pipe 6 is provided on the outlet 5. The discharge pipe 6 is connected to the collection box 2.

[0046] In some examples, an external coolant source delivers coolant to the inlet chamber 3-2 through the inlet pipe 3-1. The coolant then enters the outlet pipe 3-3 from the inlet chamber 3-2 and is finally sprayed out through the high-pressure nozzle 3-4 to cool the straightening machine. The sprayed coolant, carrying heat and impurities, flows into the collection tank 2 through the outlet trough 3-6 of the inclined collection hood 3-5 and the outlet pipe 3-3.

[0047] like Figure 4 As shown, the collection box 2 is equipped with a connector 7, and the lower end of the outlet pipe 3-3 is inserted into the connector 7.

[0048] In some examples, the lower end of the outlet pipe 3-3 is inserted into the insertion pipe 7 on the collection tank 2, and the two can be sealed with a sealing ring to prevent coolant leakage.

[0049] like Figure 3 As shown, a residue interception cover 8 is installed in the liquid outlet tank 3-6, and the two sides of the residue interception cover 8 are fixedly connected to the inclined collection cover 3-5.

[0050] In some examples, a residue interception cover 8 is installed in the outlet tank 3-6. The two sides of the residue interception cover 8 are fixedly connected to the inclined collection cover 3-5. The residue interception cover 8 can be made of stainless steel filter screen. The size of its mesh should be determined according to the size of the residue particles that may be contained in the coolant, so as to effectively intercept the residue and prevent it from entering the collection tank 2.

[0051] like Figure 1 As shown, mounting frames 9 are provided on the opposite side walls of the cover frame 1, and bolt positioning grooves 10 are opened on the side walls of the mounting frames 9.

[0052] In some examples, the overall structural installation of the water-cooled cover requires the mounting frame 9 to be securely connected to the straightening machine via bolt positioning slots 10.

[0053] During use, an external coolant source introduces coolant into the inlet chamber 3-2 inside the cover frame 1 through the inlet pipe 3-1. Since the inlet chamber 3-2 is connected to the outlet pipe 3-3, and a high-pressure nozzle 3-4 is provided on the lower end face of the outlet pipe 3-3, the coolant is sprayed out at high speed from the high-pressure nozzle 3-4 under pressure. The high-pressure nozzle 3-4 sprays the coolant into fine droplets onto the continuous casting straightener. Through the heat absorption of liquid evaporation and heat conduction with the surface of the straightener, the heat generated during the operation of the straightener is carried away, thereby achieving cooling of the continuous casting straightener and preventing it from being affected by overheating, thus preventing it from affecting its performance and lifespan.

[0054] The inclined collection hood 3-5 set at the lower end of the frame 1 is used to collect the coolant flowing down from the surface of the straightening machine. The outlet groove 3-6 inside the inclined collection hood 3-5 can guide the coolant to the outlet 5. The outlet pipe 3-3 connected to the outlet 5 delivers the coolant to the collection tank 2. The inclined angle design of the inclined collection hood 3-5 allows the coolant to flow naturally under the action of gravity, ensuring a smooth collection process.

[0055] The filter and recovery assembly 4 inside the collection tank 2 filters the incoming coolant. First, the coolant passes through the semi-circular filter cover 4-1, which filters out larger particles of impurities. Then, under the action of the guide block 4-2 on the bottom surface of the collection tank 2, the coolant flows to the filter screen 4-3 at the edge of the upper end face of the guide block 4-2 for finer filtration, further intercepting small impurity particles and purifying the filtered coolant.

[0056] The filtered coolant is temporarily stored in the collection tank 2. It can be transported to the waste heat recovery system through other pipelines installed on the collection tank 2. In the waste heat recovery system, heat exchangers and other equipment are used to transfer the heat in the coolant to other media or systems that need to be heated, so as to realize the recovery and utilization of waste heat, improve energy utilization efficiency, and reduce energy waste. At the same time, the sealing caps 4-6 can ensure the sealing of the collection tank 2 and prevent coolant leakage and impurities from entering.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of this disclosure and are not intended to limit it. Although this disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this disclosure without departing from the spirit and scope of the technical solutions of this disclosure, and all such modifications and substitutions should be covered within the scope of the claims of this disclosure.

Claims

1. A water-cooled cover for a waste heat recovery continuous casting straightening machine, characterized in that, include: A cover frame (1), wherein a collection box (2) is provided at the lower end of the cover frame (1); Cooling spray assembly (3), wherein the cooling spray assembly (3) is disposed inside the cover frame (1); A filter recovery assembly (4) is disposed inside the collection box (2); The cooling spray assembly (3) includes an inlet tube (3-1), which is disposed on the cover frame (1). The cover frame (1) has an inlet chamber (3-2) inside, which is connected to the inlet tube (3-1). The cover frame (1) has an outlet tube (3-3) at its inner top, and a high-pressure nozzle (3-4) is disposed on the lower end face of the outlet tube (3-3). The high-pressure nozzle (3-4) is connected to the inlet chamber (3-2).

2. The water-cooled hood of the CCM according to claim 1, characterized in that, The lower end face of the cover frame (1) is provided with an inclined collection cover (3-5), and the interior of the inclined collection cover (3-5) is provided with a liquid outlet groove (3-6).

3. The water-cooled hood of the CCM according to claim 1, characterized in that, The filtration and recovery assembly (4) includes a semi-circular filter cover (4-1), which is disposed inside the collection box (2). A guide block (4-2) is disposed on the inner bottom surface of the collection box (2), and a filter screen cover (4-3) is disposed at the upper edge of the guide block (4-2).

4. The water-cooled hood of the CCM according to claim 3, characterized in that, The side wall of the collection box (2) is provided with a cleaning port (4-4), and the side wall of the cleaning port (4-4) is provided with a connecting pin (4-5). A sealing cap (4-6) is connected to the connecting pin (4-5) by a pin shaft.

5. The water-cooled hood of the CCM according to claim 2, characterized in that, The liquid outlet tank (3-6) is provided with a liquid outlet (5), and a discharge pipe (6) is provided on the liquid outlet (5). The discharge pipe (6) is connected to the collection box (2).

6. The water-cooled hood of a CCM (continuous casting machine) according to claim 5, characterized in that, The collection box (2) is provided with a connector (7), and the lower end of the liquid outlet pipe (3-3) is inserted into the connector (7).

7. The water-cooled hood of a CCM according to claim 2, characterized in that, The liquid outlet tank (3-6) is provided with a residue interception cover (8), and the two sides of the residue interception cover (8) are fixedly connected to the inclined collection cover (3-5).

8. The water-cooled hood of a CCM (continuous casting machine) according to claim 1, characterized in that, The cover frame (1) is provided with mounting brackets (9) on its opposite side walls, and the mounting brackets (9) have bolt positioning grooves (10) on their side walls.

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