Air duct connecting assembly, dust removal system and rolling mill

Abstract

The invention provides an air duct connecting assembly, a dust removal system and a rolling mill, and belongs to the technical field of dust removal. The air duct connecting assembly comprises a first air pipe which is connected with the outlet end. The hose is provided with a first end, a second end and a hose inner cavity, the first end is connected with the first air pipe, and the hose inner cavity is used for allowing dust to circulate. And the second air pipe is fixedly arranged on the rolling mill rack and is connected with the second end part. The hose can stretch out and draw back in any direction. The hose is arranged between the first air pipe and the second air pipe, and the hose can stretch out and draw back in any direction, so that even if the first air pipe and the second air pipe are both steel hard pipes, when the first air pipe and the dust collection device are synchronously lifted, the first air pipe can be prevented from being stuck during lifting, and damage to equipment can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal, and in particular to an air duct connection component, a dust removal system and a rolling mill. Background Art

[0002] When the rolling mill workshop is in production, a large amount of iron oxide scale, water vapor, oily smoke and dust will be generated. In order to effectively solve the problem of dust purification during the rolling process of the rolling mill, a set of effective technical routes for dust collection of the rolling mill guide body is provided. Based on this technical route, the dust and smoke collected from the dust collecting device of the rolling mill needs to be introduced into the air duct fixed on the rolling mill frame. Since the dust collecting device is a lifting mechanism, and the rolling mill will generate huge vibrations during the rolling process, the lifting process of the dust collecting device will also be accompanied by vibrations and slight lateral movements. At the same time, in this area, a large enough space should be reserved for the convenience of mill inspection and maintenance, and the inspection space and passages should not be blocked. In response to these technical problems, we have developed an air duct connection component to effectively solve this problem.

[0003] It should be noted that the information disclosed in the background technology section of the invention is only intended to deepen the understanding of the general background technology of the invention, and should not be regarded as an admission or suggestion in any form that the information constitutes prior art already known to those skilled in the art. Summary of the invention

[0004] The object of the present invention is to provide an air duct connection assembly, a dust removal system and a rolling mill to solve the problem that the upper air duct and the lower air duct which are respectively fixedly connected to the rolling mill are connected by hard pipes, which may cause the lower air duct to get stuck when lifting and cause damage to the equipment.

[0005] In order to solve the above technical problems, the present invention provides an air duct connection assembly, which is installed in a dust removal system of a rolling mill, wherein the rolling mill comprises a rolling mill frame and an outlet, the dust removal system is installed on the rolling mill frame, the dust removal system has an inlet end and an outlet end, and the outlet of the rolling mill is connected to the inlet end, comprising:

[0006] A first air duct connected to the outlet end;

[0007] A hose having a first end, a second end and a hose inner cavity, wherein the first end is connected to the first air duct, and the hose inner cavity is used for dust circulation;

[0008] A second air duct is fixedly mounted on the rolling mill frame and connected to the second end portion;

[0009] Wherein, the hose is retractable in any direction.

[0010] Preferably, the tube wall of the hose comprises a first structural layer and a second structural layer, and the first structural layer and the second structural layer are both retractable in any direction.

[0011] Preferably, the material used for the first structural layer is Kevlar cloth, and the material used for the second structural layer is triple-proof cloth.

[0012] Preferably, the air duct connecting device further comprises:

[0013] The lifting device comprises a steel wire rope connected to the first end of the hose. The lifting device drives the hose to contract or extend along the axial direction of the hose.

[0014] Preferably, the direction in which the lifting device drives the steel wire rope to move coincides with the axial direction of the hose.

[0015] Preferably, a first flange is installed at the first end, and the first end is sealed and connected to the first air duct via the first flange.

[0016] Preferably, the first flange is a counterweight flange.

[0017] Preferably, a second flange is installed on the second end portion and is sealedly connected to the second air duct via the second flange.

[0018] Preferably, the first air duct and the second air duct are both made of stainless steel.

[0019] Based on the same inventive concept, the present invention also provides a dust removal system connected to the outlet of the rolling mill, used to transport the dust generated by the rolling mill from inside the workshop to outside the workshop, comprising:

[0020] a dust collecting device having an outlet end, and

[0021] As described above, the air duct connecting component is connected to the outlet end.

[0022] Based on the same inventive concept, the present invention also provides a rolling mill, comprising: a dust removal system as described above.

[0023] Compared with the prior art, the air duct connection assembly of the present invention has the following advantages:

[0024] The present invention provides a hose between the first air duct and the second air duct, and the hose can be retracted in any direction. Therefore, even if the first air duct and the second air duct are both hard tubes made of steel, when the first air duct and the dust collecting device are lifted synchronously, it can prevent the first air duct from getting stuck during lifting and causing damage to the equipment.

[0025] The dust removal system and rolling mill provided by the present invention and the air duct connection assembly provided by the present invention belong to the same inventive concept. Therefore, the dust removal system and rolling mill provided by the present invention have at least all the advantages of the air duct connection assembly provided by the present invention and can avoid damage to the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the arrangement of the air duct connection assembly in one embodiment of the present invention;

[0027] Figure 2 is a schematic diagram of the overall structure of an air duct connection assembly in one embodiment of the present invention;

[0028] In the figure,

[0029] 10- rolling mill; 20- dust collecting device;

[0030] 30-first air duct; 40-air duct connection assembly;

[0031] 41-hose; 411-first end;

[0032] 412 - second end; 42 - counterweight flange;

[0033] 43-manual hoist; 431-wire rope;

[0034] 44-second flange; 50-second air duct. DETAILED DESCRIPTION

[0035] In order to make the purpose, advantages and features of the present invention clearer, the air duct connection assembly, dust removal system and rolling mill proposed by the present invention are further described in detail in combination with the drawings and specific embodiments. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, which are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention. It should be understood that the drawings in the specification do not necessarily show the specific structure of the present invention in proportion, and the illustrative features used to illustrate certain principles of the present invention in the drawings in the specification will also adopt a slightly simplified drawing method. The specific design features of the present invention disclosed herein include, for example, specific dimensions, directions, positions and shapes, which will be determined in part by the specific environment to be applied and used. And, in the embodiments described below, sometimes the same figure mark is used in common between different drawings to represent the same part or a part with the same function, and its repeated description is omitted. In this specification, similar numbers and letters are used to represent similar items, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0036] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0038] Ginseng Figure 1 and Figure 2 A specific embodiment of an air duct connection component is disclosed. The air duct connection component 40 is installed in the dust removal system of the rolling mill 10, and the rolling mill 10 includes a rolling mill frame and an outlet. The dust removal system is installed on the rolling mill frame. The dust removal system has an inlet end and an outlet end, and the outlet of the rolling mill 10 is connected to the inlet end. It includes: a first air duct 30, which is connected to the outlet end. A hose 41 has a first end 411, a second end 412 and a hose inner cavity (not shown in the figure), the first end 411 is connected to the first air duct 30, and the hose inner cavity is used for dust circulation. The second air duct 50 is fixedly arranged on the rolling mill frame and connected to the second end 412. Wherein, the hose 41 is retractable in any direction.

[0039] In the prior art, since the dust collecting device 20 and the second air duct 50 are both fixedly installed on the rolling mill frame, an air duct connection assembly needs to be provided between the dust collecting device 20 and the second air duct 50 to discharge the dust collected by the dust collecting device 20 from the second air duct 50. However, since huge vibrations will be generated during the rolling process of the rolling mill 10, the dust collecting device 20 will also be accompanied by vibrations and slight lateral movements during the lifting process. At the same time, a large enough space should be reserved in this area to facilitate the inspection and maintenance of the rolling mill 10, and the inspection space and passage should not be blocked. The first air duct 30 and the second air duct 50 connected to the outlet end of the dust collecting device 20 are both steel hard pipes. There is a concentric deviation during installation. At the same time, when the first air duct 30 and the dust collecting device 20 are lifted synchronously, there is also a deviation in the movement trajectory. If the first air duct 30 and the second air duct 50 are connected by a hard pipe, the first air duct 30 may be stuck during lifting, causing damage to the equipment. It should be noted that the dust collecting device 20 is a prior art, and those skilled in the art are already familiar with the specific structure and principle of the dust collecting device 20, which will not be described in detail here.

[0040] However, the air duct connecting assembly 40 disclosed in this embodiment is provided with a hose 41 between the first air duct 30 and the second air duct 50, and the hose 41 can be retracted in any direction. Therefore, even if the first air duct 30 and the second air duct 50 are both hard tubes made of steel, when the first air duct 30 and the dust collecting device 20 are lifted synchronously, it is possible to prevent the first air duct 30 from getting stuck during lifting and causing damage to the equipment.

[0041] The first air duct 30 is sealed and connected to the dust collecting device 20. The dust output by the dust collecting device 20 is output to the outside through the first air duct 30. The second air duct 50 is fixedly mounted on the rolling mill frame. The dust output by the first air duct 30 passes through the inner cavity of the hose and is then transported to the external environment through the second air duct 50. The first air duct 30 and the second air duct 50 are both made of stainless steel.

[0042] Exemplarily, the tube wall of the hose 41 includes a first structural layer (not shown in the figure) and a second structural layer (not shown in the figure), and both the first structural layer and the second structural layer are retractable in any direction.

[0043] Specifically, refer to Figure 1 and Figure 2 As shown, the hose 41 adopts a double-layer composite structure. The tube wall of the hose 41 includes a first structural layer and a second structural layer. The material used for the first structural layer is Kevlar cloth. The material used for the second structural layer is a three-proof cloth. Kevlar cloth is made of aramid fiber composite material. Kevlar cloth is a high-strength, lightweight fiber with the characteristics of high temperature resistance, high strength, good toughness, smokeless and toxic when burning, corrosion resistance, and anti-slip. It can adapt to the high flue gas temperature, humid and perishable environment in this embodiment. The three-proof cloth is composited with glass fiber and polyester material, and has the advantages of fireproof, oilproof and waterproof. It can adapt well to the environment of the rolling mill 10 site.

[0044] Exemplarily, the air duct connection device further includes: a lifting device, including a wire rope 431, the wire rope 431 is connected to the first end 411 of the hose 41, and the lifting device drives the hose 41 along the axial direction of the hose 41 (ie, Figure 2 The direction of the middle dotted line a) shrinks or extends.

[0045] Specifically, refer to Figure 1 and Figure 2 As shown, the lifting device can be a manual hoist 43, an electric hoist or other device that can be raised and lowered. In this embodiment, preferably, the lifting device is a manual hoist 43. The manual hoist 43 includes a wire rope 431. The wire rope 431 and the first end 411 of the hose 41 can be welded or detachably connected by screws or the like. When the inlet and outlet of the rolling mill 10 are inspected or maintained, the first end 411 of the hose 41 can be driven by the wire rope 431 of the manual hoist 43 along the axial direction of the hose 41 (i.e., Figure 2 The hose 41 is retracted and the space occupied by the hose 41 when extended is vacated, which greatly facilitates the needs of inspection and maintenance work.

[0046] Exemplarily, the first end 411 is provided with a first flange, and the first end 411 is sealed and connected to the first air duct 30 via the first flange. The second end 412 is provided with a second flange 44, and is sealed and connected to the second air duct 50 via the second flange 44.

[0047] Specifically, refer to Figure 1 and Figure 2 As shown, the first flange is a counterweight flange 42. The first end 411 is sealed and connected to the first air duct 30 through the counterweight flange 42. By setting the first flange as the counterweight flange 42, it can be ensured that the hose 41 remains in an extended state when the rolling mill 10 is in operation, and it can also be ensured that when the center lines of the first air duct 30 and the second air duct 50 are not concentric, the hose 41 can be used to maintain the characteristic of natural adjustment by utilizing the retractable property. In addition, the first structural layer is made of Kevlar cloth. Kevlar cloth has high strength, improves the strength of the hose 41, and is suitable for setting the counterweight flange 42 at the bottom of the hose 41.

[0048] This embodiment also discloses a dust removal system connected to the outlet of the rolling mill 10, which is used to transport the dust generated by the rolling mill 10 from inside the workshop to outside the workshop, including a dust collecting device 20 having an outlet end, and an air duct connection assembly 40 as described above, wherein the air duct connection assembly 40 is connected to the outlet end.

[0049] The dust removal system provided in this embodiment and the air duct connection component 40 provided in this embodiment belong to the same inventive concept. Therefore, the dust removal system provided in this embodiment has at least all the advantages of the air duct connection component 40 provided in this embodiment and can avoid damage to the equipment.

[0050] This embodiment also discloses a rolling mill, comprising the dust removal system as described above.

[0051] The rolling mill provided in this embodiment and the air duct connection assembly 40 provided in this embodiment belong to the same inventive concept. Therefore, the rolling mill provided in this embodiment has at least all the advantages of the air duct connection assembly 40 provided in this embodiment, can avoid damage to the components of the rolling mill, and increase the service life of the rolling mill.

[0052] In summary, the above embodiments provide detailed descriptions of different configurations of the air duct connection assembly, the dust removal system and the rolling mill. Of course, the above description is only a description of the preferred embodiments of the present invention, and is not any limitation to the scope of the present invention. The present invention includes but is not limited to the configurations listed in the above embodiments. Those skilled in the art can draw inferences based on the contents of the above embodiments. Any changes and modifications made by those of ordinary skill in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An air duct connection assembly, installed in a dust removal system of a rolling mill, the rolling mill comprising a rolling mill frame and an outlet, the dust removal system being installed in the rolling mill frame, the dust removal system having an inlet end and an outlet end, the outlet of the rolling mill being connected to the inlet end, characterized in that: include: A first air duct connected to the outlet end; A hose having a first end, a second end and a hose inner cavity, wherein the first end is connected to the first air duct, and the hose inner cavity is used for dust circulation; A second air duct is fixedly mounted on the rolling mill frame and connected to the second end portion; Wherein, the hose is retractable in any direction.

2. The air duct connection assembly according to claim 1, characterized in that: The tube wall of the hose comprises a first structural layer and a second structural layer, and both the first structural layer and the second structural layer are retractable in any direction.

3. The air duct connection assembly according to claim 2, characterized in that: The material used for the first structural layer is Kevlar cloth, and the material used for the second structural layer is triple-proof cloth.

4. The air duct connection assembly according to claim 1, characterized in that: The air duct connecting device also includes: The lifting device comprises a steel wire rope connected to the first end of the hose. The lifting device drives the hose to contract or extend along the axial direction of the hose.

5. The air duct connection assembly according to claim 4, characterized in that: The direction in which the lifting device drives the steel wire rope to move coincides with the axial direction of the hose.

6. The air duct connection assembly according to claim 1, characterized in that: The first end is installed with a first flange, and the first end is sealed and connected to the first air duct through the first flange.

7. The air duct connection assembly according to claim 6, characterized in that: The first flange is a counterweight flange.

8. The air duct connection assembly according to claim 1, characterized in that: The second end is provided with a second flange and is sealed and connected to the second air duct via the second flange.

9. A dust removal system connected to the outlet of a rolling mill, used to transport dust generated by the rolling mill from inside the workshop to outside the workshop, characterized in that: include: a dust collecting device having an outlet end, and The air duct connection assembly according to any one of claims 1 to 8, wherein the air duct connection assembly is connected to the outlet end.

10. A rolling mill, characterized in that: include: A dust removal system as claimed in claim 9.

Images