Heat conduction chimney for heating casting flow of continuous casting machine
By installing a heat-conducting chimney above the straightening machine to guide the excess heat generated by the casting flow heating, the problem of equipment damage caused by excessively rapid cooling of the billet was solved, and production safety and continuity were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-10
AI Technical Summary
During the heating process of the casting stream in a continuous casting machine, if the billet cools too quickly, heat will dissipate, damaging surrounding equipment and affecting production safety and continuity.
A heat-conducting chimney is installed above the straightening machine, and excess heat is guided away through an exhaust system to prevent heat from affecting other equipment.
It effectively eliminates equipment damage caused by casting flow heating, ensuring production safety and continuity.
Smart Images
Figure CN224101793U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to continuous casting technical field, especially, relate to a continuous casting machine casting flow heating's heat conduction chimney. BACKGROUND
[0002] Casting flow heating system is a new type of continuous casting round billet production technology, because the round billet production speed is slow, and the casting billet cools faster, thereby generating a series of casting billet quality problems, the casting billet heating roasting casting billet surface is added in the new casting billet between the pull straightening machine, and the casting billet surface temperature drop is slowed down, thereby improving the casting billet quality, the slow cooling effect of the casting billet can be improved, and the casting billet with good solidification structure is obtained, thereby improving the performance of the finished product.
[0003] The essence of casting flow heating is a roasting system, and the natural gas flow adopts a fixed mode, the size of the fire is changed by adjusting the air damper, so that the heat generated is changed, and the heating temperature rise required for different steel grades is adjusted.
[0004] In the production process, after the casting billet reaches the casting flow heating burner, the casting flow heating system starts and continuously runs, but due to the small space in the pull straightening machine, the heat generated is dissipated, and the heat radiation is quite large, thereby causing the surrounding cables, oil pipes, pull straightening machine body and other important equipment to be roasted, causing the accident to be enlarged, and thereby causing a long time heat stop. SUMMARY
[0005] The utility model discloses a kind of continuous casting machine casting flow heating's heat conduction chimney, by newly added flow guide chimney in the gap above pull straightening machine installed with casting flow heating burner, it can actively take away the redundant heat generated when casting flow heating roasts casting billet, simultaneously guide heat to dissipate from the path that other equipment is not affected, thereby eliminating the production accident caused by damaging other equipment when using casting flow heating, to ensure production safety and continuity.
[0006] To solve the above technical problems, the utility model is realized by the following technical schemes:
[0007] The utility model discloses a kind of continuous casting machine casting flow heating's heat conduction chimney, including a group of pull straightening machine and chimney body, heat preservation bin is equipped between two the pull straightening machine, both sides in the heat preservation bin are equipped with casting flow heating burner;
[0008] The chimney body includes a flow collection bin, the bottom of the flow collection bin is open, the top of the heat preservation bin is provided with a hole, and the flow collection bin is fixed on the top of the heat preservation bin and covers the hole.
[0009] Vertical pipes are fixedly connected on both sides of the top of the flow collection bin, and the two vertical pipes are located above the two casting flow heating burners respectively.
[0010] Two top ends of the vertical pipes are fixedly communicated by a pipe section, a collecting pipe is arranged on the collecting pipe, an annular structure of an air exhaust shell is arranged on the collecting pipe, an impeller is arranged in the air exhaust shell, and a motor connected with the impeller is arranged on the back of the air exhaust shell.
[0011] A sandwich layer is arranged in the collecting bin, the collecting pipe, the vertical pipe and the air exhaust shell, and the sandwich layer is filled with heat insulation asbestos.
[0012] Further, a reinforcing edge or a flange edge is arranged at the bottom edge of the collecting bin, the collecting bin is fixedly welded with the heat preservation bin through the reinforcing edge or is fixedly connected with the heat preservation bin through the flange edge and fasteners.
[0013] Further, the hole on the heat preservation bin is located at the inner side of the collecting bin, the bottom edge of the collecting bin is in contact with the top surface of the heat preservation bin, and an asbestos seal is arranged at the connecting position.
[0014] Further, a partition plate is arranged in the middle of the collecting bin, and the collecting bin is divided into two cavities by the partition plate.
[0015] Further, the output end of the motor penetrates through the side of the air exhaust shell and forms a convex rod part, a shaft sleeve is arranged at the shaft center of the impeller, the shaft sleeve is sleeved outside the convex rod part and is connected through fasteners.
[0016] Further, the side of the air exhaust shell away from the motor is an open face, and a maintenance cover is fixedly arranged on the open face through a flange.
[0017] The utility model has the following beneficial effects:
[0018] The utility model discloses a heat conduction chimney for casting flow heating of a continuous casting machine, which comprises a heat preservation bin, a collecting bin, a vertical pipe and an air exhaust shell.
[0019] Of course, it is not necessary for any product embodying the utility model to achieve all the advantages mentioned above. BRIEF DESCRIPTION OF DRAWINGS
[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for the ordinary skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.
[0021] Figure 1 It is a structure schematic view of the heat conduction chimney for casting flow heating of the continuous casting machine.
[0022] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1-Combination chamber, 2-Vertical pipe, 3-Collection pipe, 4-Exhaust casing, 101-Baffle plate, 201-Inclined pipe section, 401-Impeller, 402-Motor, 403-Protruding rod, 404-Shaft sleeve, 405-Inspection cover. Detailed Implementation
[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figures 1-2 As shown, this utility model is a heat-conducting chimney for heating the casting flow of a continuous casting machine, including a set of straightening machines and a chimney body. A heat insulation chamber is provided between the two straightening machines, and casting flow heating burners are provided on both sides of the heat insulation chamber.
[0027] The chimney body includes a manifold 1, which has an open bottom and a hole at the top of the insulation chamber. The manifold 1 is fixed to the top of the insulation chamber and covers the hole.
[0028] The top two sides of the manifold 1 are fixedly connected to vertical pipes 2, and the two vertical pipes 2 are located directly above the two casting flow heating burners;
[0029] The top ends of the two vertical pipes 2 are fixedly connected to the collecting pipe 3 via the inclined pipe section 201. The collecting pipe 3 is provided with an annular exhaust shell 4. The exhaust shell 4 is provided with an impeller 401 inside. The back of the exhaust shell 4 is provided with a motor 402 connected to the impeller 401.
[0030] The manifold 1, the collecting pipe 3, the vertical pipe 2 and the exhaust shell 4 are all equipped with a sandwich layer, which is filled with heat-insulating asbestos.
[0031] The manifold 1 has a reinforcing edge or flange at its bottom edge. The manifold 1 is fixed to the insulation chamber by welding the reinforcing edge or by fixing it to the insulation chamber by the flange and fasteners.
[0032] The holes on the insulation chamber are located inside the manifold 1, and the bottom edge of the manifold 1 contacts the top surface of the insulation chamber and the connection is sealed with asbestos.
[0033] Among them, such as Figure 2 As shown, a partition 101 is provided in the middle of the manifold 1, which divides the manifold 1 into two chambers.
[0034] Among them, such as Figure 2 As shown, the output end of the motor 402 passes through the side of the exhaust housing 4 and forms a protruding rod portion 403. A bushing 404 is provided at the shaft center of the impeller 401. The bushing 404 is fitted outside the protruding rod portion 403 and connected by fasteners.
[0035] Among them, such as Figure 1 As shown, the side of the exhaust casing 4 away from the motor 402 is an open side, and an inspection cover 405 is fixed to the open side by a flange.
[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A heat-conducting stack for continuous-casting strand heating, comprising a set of withdrawal-straightening machines, a heat-insulating cabin being arranged between two of the withdrawal-straightening machines, and strand-heating burners being arranged on both sides in the heat-insulating cabin, characterized in that: The chimney body further comprises a flow collection bin (1) with an open bottom and a hole on the top, which is fixed on the top of the heat preservation bin and covers the hole; The flow collection bin (1) is fixed on both sides of the top and is communicated with vertical pipes (2), and the two vertical pipes (2) are located above the two casting stream heating nozzles respectively; The top ends of the two vertical pipes (2) are fixed and communicated with a collection pipe (3) through an inclined pipe section (201), and the collection pipe (3) is provided with an annular structure of an air extraction shell (4), which is provided with an impeller (401) inside, and the back of the air extraction shell (4) is provided with a motor (402) connected with the impeller (401); The flow collection bin (1), the collection pipe (3), the vertical pipe (2) and the air extraction shell (4) are all provided with a sandwich layer, and the sandwich layer is filled with heat insulation asbestos. The flow collection bin (1) is provided with a reinforcing edge or a flange edge at the bottom edge, and the flow collection bin (1) is fixed by welding with the heat preservation bin through the reinforcing edge or is fixed and connected with the heat preservation bin through the flange edge and fasteners.
2. A thermally conductive stack for strand heating of a continuous caster as defined in claim 1, characterized in that The hole on the heat preservation bin is located inside the flow collection bin (1), the bottom edge of the flow collection bin (1) is in contact with the top surface of the heat preservation bin, and the connection part is provided with asbestos sealing.
3. A thermally conductive stack for strand heating of a continuous caster as defined in claim 2, characterized in that The flow collection bin (1) is provided with a partition plate (101) in the middle, which divides the flow collection bin (1) into two sub-chambers.
4. A thermally conductive stack for strand heating of a continuous caster as defined in claim 1, characterized in that The output end of the motor (402) penetrates the side of the air extraction shell (4) and forms a protruding rod part (403), the shaft sleeve (404) is provided at the shaft center of the impeller (401), the shaft sleeve (404) is sleeved outside the protruding rod part (403) and is connected through fasteners.
5. A thermally conductive stack for strand heating of a continuous caster as defined in claim 1, wherein The side of the air extraction shell (4) away from the motor (402) is an open side, and the open side is fixed with an inspection cover (405) through a flange.
6. A thermally conductive stack for strand heating of a continuous caster as defined in claim 1, characterized in that