Dust collecting device and cogging mill
By designing the dust collection devices of the rack dust hood and the roller dust hood, the problems of high energy consumption and inconvenient maintenance of the existing dust collection methods are solved, and low energy consumption, high-efficiency flue gas collection and convenient equipment maintenance are achieved.
Patent Information
- Application Number
- CN202422029580.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-08-20
AI Technical Summary
Existing dust collection methods require a large amount of dust collection air volume, high energy consumption, and make the rolling mill equipment inconvenient to maintain and reduce its service life.
A dust collecting device is designed, including a frame dust collecting hood and a roller dust collecting hood, which are respectively installed inside the frame and on the upper side of the conveyor roller, with the grooves facing downward, sealing the upper roller assembly and the roller. The smoke is discharged in batches through the installation groove and the dust collecting groove, reducing the introduction of wild wind and lowering energy consumption.
It achieves low-energy consumption and high-efficiency flue gas collection, prevents flue gas from diffusing into the rolling mill, facilitates equipment maintenance, and extends equipment service life.
Smart Images
Figure CN223300666U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel rolling mills, in particular to a dust collecting device and a blanking machine. Background Art
[0002] Steel rolling is a process in steel production. During the steel rolling process, a large amount of smoke, oil mist and water vapor will be generated, which will create a harsh working environment, damage personal health and reduce the service life of equipment.
[0003] A slab mill is a reversible rolling mill widely used for rough rolling of products such as bars, wire rods, sections, and strip. Mill fumes are primarily generated in the hot steel rolling deformation zone and escape from the mill frame along with the hot air flow and moisture within the mill frame. During the slab mill rolling process, the main escape path for these fumes is upwards from the mill frame's top, and then along with the hot steel, out of the mill's rolling exit and onto the conveyor rollers along the rolling direction.
[0004] Currently, the majority of slab mill fume collection and treatment methods utilize movable, enclosed or semi-enclosed fume hoods installed above the conveyor rollers at the mill entrance and exit. This method of collecting dust involves a large amount of fume diffusing into the hood, where it mixes with the large amount of open air drawn in by the hood and is then collected and treated by the airflow within the hood. This requires a large amount of airflow, consumes a lot of energy, and is expensive to construct. Furthermore, the enclosed hood, which is filled with fume, makes maintenance difficult and reduces service life. Utility Model Content
[0005] Based on the above description, the utility model provides a dust collecting device to solve the problems of existing dust collecting methods requiring large dust collecting air volume, high energy consumption, and causing inconvenience in maintenance and shortening the life of the rolling mill.
[0006] The technical solution of the utility model to solve the above technical problems is as follows:
[0007] A dust collecting device, comprising:
[0008] A frame dust collecting cover is installed in the frame and has a mounting groove with a notch facing downward and a dust collecting chamber connected to the mounting groove, the mounting groove is used to accommodate the upper roller assembly and shield at least part of the upper roller, the bottom wall of the mounting groove is used to connect with the upper roller balance beam, and two groove side walls of the mounting groove that are oppositely distributed in the transverse direction are used to abut against two upper roller bearing seat connecting beams respectively, and the cavity wall of the dust collecting chamber is provided with a frame dust collecting port for communicating with the external environment; and
[0009] At least two roller dust collecting covers are respectively located on the lateral sides of the frame dust collecting cover and fixed to the upper side of the conveyor roller, each roller dust collecting cover has a dust collecting groove with a downward notch, and the groove wall of each dust collecting groove is provided with a roller dust collecting port for communicating with the external environment;
[0010] The transverse direction is arranged in the same direction as the conveying direction of the blank.
[0011] On the basis of the above technical solution, the present invention can also be improved as follows:
[0012] Furthermore, the dust collecting chamber is provided in two, and the two dust collecting chambers are respectively located on two lateral sides of the mounting groove.
[0013] Furthermore, the notch of the mounting groove is used to be flush with the lower end surface of the upper roller bearing seat connecting beam.
[0014] Furthermore, a plurality of steel chains are connected to both sides of the notch of the installation groove which are spaced apart laterally, and the plurality of steel chains extend in the up and down directions, and the lower end of each steel chain is projected laterally to be located on the upper roller.
[0015] Furthermore, the dust collecting device also includes a dust collecting pipe and a frame connecting pipe. The dust collecting pipe is used to be fixed on the frame, and the two ends of the frame connecting pipe are respectively connected to the dust collecting pipe and the frame dust collecting port.
[0016] Furthermore, the two side edges of the dust collecting trough, which are spaced apart in the longitudinal direction, are respectively used to be fixedly connected to two pusher guard plates that are oppositely distributed in the longitudinal direction of the conveyor roller.
[0017] The longitudinal direction is set to be the same as the radial direction of the upper roller.
[0018] Furthermore, the roller dust hoods are set to four, and the four roller dust hoods are divided into two first dust hoods and two second dust hoods. The two first dust hoods are respectively adjacent to the two sides of the frame dust hood, and the two second dust hoods are respectively located on both sides of the two first dust hoods.
[0019] The utility model also provides a blanking machine, comprising the dust collecting device.
[0020] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0021] Flue gas is generated at the billet inlet and outlet, which are located between the upper roller and the lower roller. The upper roller assembly is accommodated in the installation groove, and the bottom wall of the installation groove is connected to the upper roller balance beam. The two groove side walls of the installation groove, which are spaced apart laterally, abut against the two upper roller bearing seat connecting beams, so that the installation groove seals the upper roller assembly, allowing a portion of the flue gas to enter the installation groove from the gap between the upper roller and the upper bearing seat connecting beam, and then enter the dust collecting chamber from the installation groove, and be discharged through the frame dust collecting port. The other part of the flue gas enters the two dust collecting grooves from both sides of the upper roller and the lower roller, and then is discharged through the corresponding roller dust collecting ports. In this way, dust is collected in batches, avoiding the introduction of a large amount of wild wind, reducing the dust collection air volume, and reducing energy consumption and production costs.
[0022] This prevents smoke from spreading to the surrounding equipment within the rolling mill, facilitating equipment maintenance and extending equipment life. The frame dust hood is fixed to the upper roll balance beam and can move with it, without affecting mill operation or maintenance. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic front view of a dust collecting device provided in an embodiment of the present utility model;
[0024] Figure 2 for Figure 1 A partial enlarged schematic diagram of area A in the middle;
[0025] Figure 3 A schematic top view of a dust collecting device provided in an embodiment of the present utility model;
[0026] Figure 4 for Figure 1 Schematic diagram of the flue gas flow direction.
[0027] In the accompanying drawings, the components represented by the reference numerals are as follows:
[0028] 1. Frame dust hood; 11. Mounting slot; 12. Dust collecting chamber; 121. Frame dust collecting port; 122. First inclined surface; 2. Roller dust hood; 21. Dust collecting slot; 211. Roller dust collecting port; 22. First dust hood; 221. Second inclined surface; 23. Second dust hood; 3. Steel chain; 4. Dust collecting duct; 5. Frame connecting pipe; 6. Roller connecting pipe; 101. Frame; 102. Upper roller assembly; 1021. Upper roller; 1022. Upper roller balance beam; 1023. Upper roller bearing seat; 1024. Upper roller bearing seat connecting beam; 201. Pusher; 202. Conveyor roller; 203. Pusher protective plate. DETAILED DESCRIPTION
[0029] To facilitate understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The accompanying drawings provide embodiments of the present application. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application.
[0031] It will be understood that spatial relational terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be understood that in addition to the orientations shown in the figures, spatial relational terms also include different orientations of the device in use and operation. For example, if the device in the drawings is turned over, the element or feature described as "under" or "beneath" or "beneath" the other elements will be oriented as "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include alternative orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.
[0032] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element or connected to the other element through an intermediate element. In the following embodiments, "connection" should be understood as "electrical connection", "communication connection", etc., if the connected circuits, modules, units, etc. can transmit electrical signals or data to each other.
[0033] When used herein, the singular forms "a", "an", and "the" may also include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" and the like specify the presence of stated features, integers, steps, operations, components, parts, or combinations thereof, but do not preclude the possibility of the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.
[0034] Reference Figure 1 、 Figure 3 and Figure 4The present invention proposes a dust collecting device, comprising: a frame dust collecting cover 1 and at least two roller dust collecting covers 2. The frame dust collecting cover 1 is used to be installed in the frame 101 and has a mounting groove 11 with a notch facing downward and a dust collecting chamber 12 connected to the mounting groove 11. The mounting groove 11 is used to accommodate the upper roller assembly 102 and shield at least part of the upper roller 1021. The bottom wall of the mounting groove 11 is used to connect with the upper roller balance beam 1022. The two groove side walls of the mounting groove 11 that are distributed opposite to each other in the transverse direction are used to connect with the two upper roller bearing seat connecting beams 1022 respectively. 24 abuts, the cavity wall of the dust collecting cavity 12 is provided with a frame dust collecting port 121 for communicating with the external environment; the two roller dust collecting covers 2 are respectively located on the lateral sides of the frame dust collecting cover 1 and fixed on the upper side of the conveying roller 202, and each roller dust collecting cover 2 has a dust collecting groove 21 with a notch downward, and the groove wall of each dust collecting groove 21 is provided with a roller dust collecting port 211 for communicating with the external environment; wherein, the lateral direction is set in the same direction as the conveying direction of the blank.
[0035] In this embodiment, the upper roller assembly 102 includes an upper roller 1021, an upper roller balancing beam 1022 located above the upper roller 1021, an upper roller bearing seat 1023 for mounting the upper roller 1021, and upper roller bearing seat connecting beams 1024 located on both sides of the upper roller bearing seat 1023. The wall of the mounting groove 11 is provided with a through hole that communicates with the dust collection chamber 12.
[0036] Flue gas is generated in the billet inlet and outlet, which are located between the upper roller 1021 and the lower roller. The upper roller assembly 102 is accommodated in the mounting groove 11, and the bottom wall of the mounting groove 11 is connected to the upper roller balance beam 1022. The two groove side walls of the mounting groove 11, which are spaced apart in the transverse direction, abut against the two upper roller bearing seat connecting beams 1024. Thus, the mounting groove 11 seals the upper roller assembly 102, allowing a portion of the flue gas to enter the mounting groove 11 through the gap between the upper roller 1021 and the upper roller bearing seat connecting beam 1024, and then enter the dust collection chamber 12 from the mounting groove 11, and be discharged through the frame dust collection port 121. The other portion of the flue gas enters the two dust collection troughs 21 on both sides of the upper roller 1021 and the lower roller, respectively, and is then discharged through the corresponding roller dust collection ports 211. In this way, dust is collected in batches to avoid the introduction of large amounts of wild wind. The required dust collection air volume is only one-fourth of the conventional required air volume, reducing energy consumption and production costs.
[0037] At the same time, it prevents smoke from spreading to the surrounding equipment inside the rolling mill, which is beneficial to equipment maintenance and prolongs the service life of the equipment. The frame dust collecting cover 1 is fixed to the upper roller balance beam 1022 and can move with the upper roller balance beam 1022. It does not affect the operation and maintenance of the rolling mill.
[0038] It should be noted that, in this embodiment, the mounting groove 11 is adapted to the upper roller assembly 102, thereby improving the sealing performance, so that most of the flue gas enters from the gap between the upper roller 1021 and the upper roller bearing seat connecting beam 1024 and then enters the dust collecting chamber 12, thereby preventing the flue gas from overflowing while protecting the internal equipment of the frame 101.
[0039] In this utility model, reference is made to Figure 1 and Figure 4 There is no limit to the number of the dust collecting chambers 12, as long as they can be connected to the mounting groove 11 and play the role of dust collection. In this embodiment, two dust collecting chambers 12 are provided, and the two dust collecting chambers 12 are respectively located on both sides of the mounting groove 11 in the horizontal direction. The two dust collecting chambers 12 respectively correspond to the two upper roller bearing seat connecting beams 1024, thereby improving the dust collection efficiency.
[0040] Specifically, in this embodiment, referring to Figure 1 、 Figure 3 and Figure 4 The notch of the mounting groove 11 is flush with the lower end surface of the upper roller bearing seat connecting beam 1024. Thus, the mounting groove 11 can cover at least part of the blank inlet and outlet of the frame 101, improve the sealing performance, and collect more smoke.
[0041] Further, refer to Figure 1 、 Figure 2 and Figure 4 Multiple steel chains 3 are connected to both sides of the slot opening of the mounting slot 11, spaced laterally. Each of the steel chains 3 extends vertically and is spaced longitudinally along the corresponding side edges of the slot opening of the mounting slot 11. The lower end of each steel chain 3 projects laterally onto the upper roller 1021. The longitudinal direction is aligned with the radial direction of the upper roller 1021. This further reduces the inlet and outlet of the billet, increases the airflow velocity, and prevents smoke from escaping.
[0042] In this embodiment, referring to Figure 1 The dust collecting device further includes a dust collecting pipe 4 and a frame connecting pipe 5. The dust collecting pipe 4 is fixed on the frame 101. The two ends of the frame connecting pipe 5 are respectively connected to the dust collecting pipe 4 and the frame dust collecting port 121.
[0043] Specifically, the longitudinally spaced edges of the dust collecting trough 21 are respectively secured to two longitudinally opposed pusher guard plates 203 of the conveyor roller 202. The roller dust collecting hood 2 and the two pusher guard plates 203 seal corresponding positions on the conveyor roller 202, and the roller dust collecting hood 2 can move with the conveyor roller 202 without affecting the operation and maintenance of the pushers 201.
[0044] It should be noted that the sealing between the mounting groove 11 and the upper roller assembly 102, and the sealing between the dust collecting groove 21 and the pusher protection plate 203 are improved by gap sealing or using sealing materials to improve the sealing performance.
[0045] In the present invention, the number of the roller dust collecting hoods 2 and the length thereof extending in the transverse direction are not limited, and are determined specifically according to the diffusion distance of the smoke on the conveying roller 202. Figure 3 The number of the roller dust collecting hoods 2 is four, and the four roller dust collecting hoods 2 are divided into two first dust collecting hoods 22 and two second dust collecting hoods 23. The two first dust collecting hoods 22 are respectively adjacent to the two sides of the frame dust collecting hood 1, and the two second dust collecting hoods 23 are respectively located on both sides of the two first dust collecting hoods 22.
[0046] Furthermore, in this embodiment, referring to Figure 1 and Figure 3 The dust collecting device also includes at least two roller connecting pipes 6, one end of each roller connecting pipe 6 is open, and the opening is connected to the roller dust collecting port 211 of the first dust collecting cover 22 and the second dust collecting cover 23 on the lateral side of the frame dust collecting cover 1, thereby improving the dust collection efficiency.
[0047] Since the smoke is generated at the blank inlet and outlet, the smoke escapes upward and toward the lateral sides of the blank inlet and outlet. The two first dust collecting hoods 22 are respectively closely attached to the lateral sides of the frame dust collecting hood 1, so that the smoke escaping toward the lateral sides of the blank inlet and outlet can be collected by the two first dust collecting hoods 22, ensuring that no smoke overflows.
[0048] Further, refer to Figure 1 The lower walls of the two dust collection chambers 12 are inclined upwardly and away from each other to form two first inclined surfaces 122. The side walls of the two first dust collection hoods 22, located near the frame dust collection hood 1, are arranged upwardly and away from each other to form two second inclined surfaces 221. The inclination angles of each first inclined surface 122 and each second inclined surface 221 are set to be the same. This allows smoke escaping from both sides of the blank inlet and outlet to be more easily collected by the two first dust collection hoods 22, thereby improving dust collection efficiency.
[0049] It should be noted that the spacing between the adjacent first inclined surface 122 and the second inclined surface 221 is not limited, as long as they can cooperate with the rack dust collecting hood 1 to prevent smoke from overflowing. In addition, the rack connecting pipe 5 and the roller connecting pipe 6 are configured as hoses or flexible bellows.
[0050] The present invention also proposes a blank opening machine, including the dust collecting device. The dust collecting device is as described above, so the blank opening machine includes all the technical features of the dust collecting device, which will not be described in detail here.
[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A dust collecting device, characterized in that: include: A frame dust collecting cover is installed in the frame and has a mounting groove with a notch facing downward and a dust collecting chamber connected to the mounting groove, the mounting groove is used to accommodate the upper roller assembly and shield at least part of the upper roller, the bottom wall of the mounting groove is used to connect with the upper roller balance beam, and two groove side walls of the mounting groove that are oppositely distributed in the transverse direction are used to abut against two upper roller bearing seat connecting beams respectively, and the cavity wall of the dust collecting chamber is provided with a frame dust collecting port for communicating with the external environment; and At least two roller dust collecting covers are respectively located on the lateral sides of the frame dust collecting cover and fixed to the upper side of the conveyor roller, each roller dust collecting cover has a dust collecting groove with a downward notch, and the groove wall of each dust collecting groove is provided with a roller dust collecting port for communicating with the external environment; The transverse direction is arranged in the same direction as the conveying direction of the blank.
2. The dust collecting device according to claim 1, characterized in that: The dust collecting chambers are provided in two, and the two dust collecting chambers are respectively located on two lateral sides of the installation groove.
3. The dust collecting device according to claim 1, characterized in that: The notch of the mounting groove is used to be flush with the lower end surface of the upper roller bearing seat connecting beam.
4. The dust collecting device according to claim 1, characterized in that: A plurality of steel chains are connected to both sides of the notch of the installation groove which are spaced apart in the transverse direction. The plurality of steel chains extend in the vertical direction, and the transverse projection of the lower end of each steel chain is used to be on the upper roller.
5. The dust collecting device according to claim 1, characterized in that: The dust collecting device further includes a dust collecting pipe and a frame connecting pipe. The dust collecting pipe is used to be fixed on the frame. Two ends of the frame connecting pipe are respectively connected to the dust collecting pipe and the frame dust collecting port.
6. The dust collecting device according to claim 1, characterized in that: The two side edges of the dust collecting trough opening spaced apart in the longitudinal direction are respectively used to be fixed to two pusher guard plates that are oppositely distributed in the longitudinal direction of the conveyor roller; The longitudinal direction is set to be the same as the radial direction of the upper roller.
7. The dust collecting device according to claim 1, characterized in that: The roller dust collecting hoods are set to four, and the four roller dust collecting hoods are divided into two first dust collecting hoods and two second dust collecting hoods. The two first dust collecting hoods are respectively adjacent to the two sides of the frame dust collecting hood, and the two second dust collecting hoods are respectively located on both sides of the two first dust collecting hoods.
8. A blanking machine, characterized in that: The device comprises a dust collecting device as described in any one of claims 1 to 7.