Zinc fume recovery cover of transverse sliding door end-in and side-out zinc pot
By incorporating a ring chain on the horizontal sliding door to drive the guide gear and guide rack into a meshing structure, the problem of derailment at the track seam of the horizontal sliding door is solved, thus improving safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI ANNUO AUTOMATION TECH CO LTD
- Filing Date
- 2025-04-29
- Publication Date
- 2026-05-12
AI Technical Summary
Horizontal sliding doors are prone to derailment when passing through the track gaps, posing a safety hazard.
The structure employs a ring chain to drive at least three guide gears that mesh with the guide rack, ensuring that at least two guide gears remain effectively engaged when the horizontal sliding door passes through the track gap.
This reduces the probability of horizontal sliding doors derailing during movement, thus improving safety.
Smart Images
Figure CN224227169U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of hot-dip galvanizing equipment technology, and more specifically, to a zinc fume recovery hood for a horizontally sliding door with end-in and side-out zinc pot. Background Technology
[0002] Hot-dip galvanizing is typically carried out within a closed zinc pot and zinc fume recovery hood. These hoods are generally made of high-temperature resistant materials to ensure good heat insulation and corrosion resistance. The top of the hood features longitudinal and transverse double tracks, with transverse sliding doors at its ends. RGV (Remotely Reinforcing Vehicle) feeding trolleys can be positioned on these tracks for loading and unloading metal workpieces. Simultaneously, the bottom of the RGV feeding trolley is equipped with an electric hoist and hook for lifting metal workpieces.
[0003] In related technologies, the RGV feeding car and the hoisting of workpieces need to rely on longitudinal and transverse double tracks to enter and exit the zinc pot zinc fume recovery hood. Therefore, in order to adapt the RGV feeding car to be able to move out of the zinc pot zinc fume recovery hood along the track in the discharge direction, the track of the transverse sliding door should be provided with a track gap, and the top cover of the zinc pot zinc fume recovery hood should be provided with a joint and a rotation machine.
[0004] However, due to the large size and weight of horizontal sliding doors, they may derail when passing through the track gaps, thus posing a significant safety hazard. Utility Model Content
[0005] In view of this, this application provides a zinc fume recovery hood for a horizontal sliding door with end-in and side-out, which drives at least three guide gears to rotate simultaneously via a ring chain and continuously meshes with the guide rack, ensuring that at least two guide gears remain effectively engaged when the horizontal sliding door passes through the track gap.
[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:
[0007] A horizontal sliding door end-in, side-out zinc boiler fume recovery hood includes:
[0008] The cover has a double door hinged to its end face. Two sets of sliding door guide rails are symmetrically arranged on the top of the cover along the width direction. Each set of sliding door guide rails has a guide rack on its top surface and a rail gap along the width direction. The top of the cover has a joint that matches the rail gap. The bottom of the cover is also equipped with a galvanizing pot for holding high-temperature zinc liquid.
[0009] The material travel rail includes a transverse rail parallel to the horizontal plane and a longitudinal rail perpendicularly connected to it, both located above the top of the cover.
[0010] Two sets of horizontal sliding doors, each set of horizontal sliding doors is provided with at least three horizontally arranged sprockets at the top, and each sprocket is provided with a guide gear on its side coaxially to mesh with a guide rack to ensure that the guide gears rotate synchronously, and each sprocket is meshed with a ring chain, and the sprocket at the end is coaxially connected to the output shaft of the drive motor, the two sets of horizontal sliding doors are used to move towards each other to close the cover;
[0011] Two RGV feeding cars are provided, each RGV feeding car is set on the material traveling rail, and each RGV feeding car has a hook at the bottom connected by a wire rope of an electric hoist. The wire rope moves out of the cover body through the rail gap and the joint.
[0012] A rotary indexing machine is fixedly installed on the top of the cover and is used to change the traveling direction of the RGV feeding car.
[0013] Among the possible implementation methods, several air vents are also included;
[0014] Several of the air inlets are arranged in a rectangular array on the top of the cover.
[0015] In some possible implementations, a flue gas retention chamber is provided at the top of the hood, which communicates with each of the air inlets.
[0016] In some possible implementations, a cross-shaped turning point is provided at the connection between the transverse track and the longitudinal track, and the indexing machine is located at the cross-shaped turning point and changes the traveling direction of the RGV feeder.
[0017] In some possible implementations, both the transverse track and the longitudinal track are H-shaped steel structures.
[0018] Among the possible ways to achieve this is by using a gray door;
[0019] The dust removal door is located on the front of the cover and below the horizontal sliding door. It is raised and lowered outside the horizontal sliding door by a lifting mechanism.
[0020] In some possible implementations, the zinc pot zinc fume recovery hood is also equipped with an encoder, which is used to monitor the position of the RGV feeding car in real time, control the opening of the double door to achieve automatic feeding, and control the opening of the horizontal sliding door to achieve automatic discharging.
[0021] The zinc fume recovery hood with a horizontal sliding door at the end and side exit of the zinc pot provided in this application embodiment has at least the following beneficial effects:
[0022] In this embodiment of the application, a zinc fume recovery hood with a side-entry, side-exit horizontal sliding door is provided. A sliding door guide rail is symmetrically arranged along the width direction directly above the top of the hood. A chain and gear drive mechanism adapted to the sliding door guide rail is provided on the top of the horizontal sliding door. This chain and gear drive mechanism consists of at least three sprockets connected by a ring chain. Each sprocket has a guide gear on its side, and each guide gear meshes with the guide rack of the sliding door guide rail. This structural design allows at least three guide gears to rotate simultaneously via the ring chain, continuously meshing with the guide rack. This ensures that at least two guide gears remain effectively engaged when the horizontal sliding door passes through the rail gap, reducing the probability of the horizontal sliding door derailing during movement. Attached Figure Description
[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0024] Figure 1 This is a front view of the zinc fume recovery hood with a horizontal sliding door at the end of the zinc pot and an outlet at the side, provided in an embodiment of this application.
[0025] Figure 2 A top view of a zinc fume recovery hood with a horizontal sliding door at the end of the zinc pot and a side-exit configuration provided in this application embodiment;
[0026] Figure 3 A side view of a zinc fume recovery hood with a horizontal sliding door at the end of the zinc pot and a side-exit configuration provided in an embodiment of this application;
[0027] Figure 4 This is a schematic diagram of the assembly of the track seam of the horizontal sliding door end-in-side-out zinc pot zinc fume recovery hood with the horizontal sliding door, as provided in the embodiments of this application.
[0028] Figure 5 for Figure 4 A schematic diagram of the drive motor for a horizontal sliding door.
[0029] Figure 6 A schematic diagram of the zinc fume recovery hood with a horizontal sliding door at the end of the zinc pot and an outlet at the side, provided in an embodiment of this application.
[0030] Figure 7 for Figure 1 A schematic diagram of the unfolded state of the horizontal sliding door;
[0031] Figure 8 for Figure 1 A schematic diagram of the retracted state of the horizontal sliding door.
[0032] In the picture:
[0033] 100. Enclosure; 110. Double door; 120. Seam; 130. Air inlet; 140. Flue gas retention chamber;
[0034] 200. Sliding door guide rail; 210. Rail gap; 220. Guide rack;
[0035] 300. Galvanized pot;
[0036] 400. Material travel rail; 410. Horizontal rail; 420. Vertical rail; 430. Cross-shaped rail intersection;
[0037] 500. Horizontal sliding door; 510. Door leaf;
[0038] 600, sprocket; 610, guide gear; 620, ring chain; 630, drive motor;
[0039] 800. RGV feeder; 810. Indexing machine; 820. Electric hoist; 830. Lifting hook;
[0040] 900. Apply gray paint to the door. Detailed Implementation
[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0042] like Figures 1-6 As shown in the embodiment of this application, the zinc fume recovery hood with a horizontal sliding door 500 (end-in, side-out) includes a hood body 100, a material travel rail 400, two sets of horizontal sliding doors 500, and two RGV feeding carts 800. The hood body 100 is the main structure of the zinc fume recovery hood, consisting of a top cover, two end panels, and a back panel. The hood body 100 is a key component for protecting the galvanizing pot 300 and ensuring operational safety during the galvanizing process. It mainly covers the area above and around the galvanizing pot 300 to reduce the risk of exposure to high-temperature molten zinc and optimize the process environment through physical isolation. The hood body 100 is mostly made of high-temperature and corrosion-resistant materials, such as galvanized steel or ceramic composite materials. Some areas may incorporate reinforced anti-slip technology to ensure that deformation and blackening do not occur during long-term use.
[0043] The end face of the cover 100 is hinged with a swing-open double door 110. Two sets of sliding door guide rails 200 are symmetrically arranged along the width direction on the front of the cover 100. Each set of sliding door guide rails 200 has a guide rack 220 on its top surface, extending along the length direction of the sliding door guide rail 200. Furthermore, each set of sliding door guide rails 200 has a rail gap 210 along its width direction; the rail gap 210 is the discontinuity gap of the sliding door guide rail 200. For example... Figure 1 , Figure 4 and Figure 6 As shown, correspondingly, the top cover of the cover 100 is also provided with a joint 120 that matches the rail gap 210, and each joint 120 is sealed. In addition, a galvanizing pot 300 is embedded in the bottom of the cover 100, which contains high-temperature zinc liquid for galvanizing metal workpieces.
[0044] In this embodiment, a material travel rail 400 is also provided on the top of the cover 100. Specifically, the material travel rail 400 consists of a horizontal rail 410 and a vertical rail 420 perpendicularly connected to the horizontal rail 410. Figure 2 As shown, preferably, both can be H-shaped steel structures. The horizontal track 410 and vertical track 420 are parallel to the horizontal plane and can be fixedly installed on the ceiling of the factory building. Furthermore, two sets of RGV feeding carts 800 are installed on the horizontal track 410 and vertical track 420 of the material walking track. Two sets of indexing machines 810 are symmetrically arranged on the top of the cover 100. Each indexing machine 810 can change the traveling direction of its corresponding RGV feeding cart 800, allowing the RGV feeding cart 800 to switch directions between the horizontal track 410 and the vertical track 420. The specific cooperation relationship between the indexing machine 810 and the RGV feeding cart 800 is well known to those skilled in the art, and will not be elaborated upon further in this embodiment.
[0045] In addition, each RGV feed car 800 is equipped with an electric hoist 820 at its bottom. The end of the wire rope of the electric hoist 820 is connected to the metal workpiece via a hook 830. In actual use, the hook 830 can be connected to both ends of the metal workpiece to keep it stable during hoisting and to ensure that the two wire ropes always pass through the rail gap 210 in the same direction, thereby achieving the galvanizing process.
[0046] In actual use, after the double doors 110 on the end face of the enclosure 100 are opened, two sets of RGV feeding trolleys 800 can enter the enclosure 100 through the transverse track 410, and the metal workpieces are immersed in the galvanizing pot 300 containing high-temperature zinc liquid by the lifting function of the electric hoist 820. After galvanizing, the traveling direction of the RGV feeding trolleys 800 can be changed by the indexing machine 810 so that they can move towards the outside of the enclosure 100 along the vertical track 420. Specifically, the electric hoist 820 of the RGV feeding trolley 800 lifts the metal workpieces to the outside of the enclosure 100 through the wire rope and the hook 830. During the movement of the RGV feeding trolley 800, the double wire ropes will move outward in the same direction through the rail gap 210 and the joint 120.
[0047] like Figure 4 and Figure 5 As shown, the front operating surface of the cover 100 is provided with two sets of horizontally sliding doors 500 that can move towards each other. Each set of horizontally sliding doors 500 has at least three horizontally arranged sprockets 600 on its top. Each set of sprockets 600 has a guide gear 610 coaxially fixedly connected to its side. This guide gear 610 meshes with a guide rack 220 located on the top surface of the sliding door guide rail 200. Furthermore, each set of sprockets 600 is meshed with a ring chain 620, and the drive sprocket 600 at the end is also coaxially connected to the output shaft of the drive motor 630 to ensure that the guide gears 610 can rotate synchronously. Therefore, the drive motor 630 can drive the drive sprocket 600 to rotate, and through the ring chain 620, drive each guide gear 610 to move on the guide rack 220, thereby realizing the movement function of the horizontally sliding door 500 and allowing it to smoothly pass over the rail gap 210 of the sliding door guide rail 200.
[0048] The following is combined Figures 1-6 The working principle and working process of the horizontal sliding door 500 end-in-side-out zinc pot zinc fume recovery hood provided in the embodiments of this application are described.
[0049] The metal workpiece is secured by the electric hoists 820 at the bottom of the two sets of RGV feeding trolleys 800 using hooks 830 to ensure the horizontal stability of the metal workpiece. Then, the double doors 110 on the top side of the cover 100 are opened, and the two sets of RGV trolleys are controlled to enter the cover 100 along the transverse track 410 of the material travel rail 400 until they move directly above the galvanizing pot 300. The swing doors are then closed to prevent fumes from leaking out during the galvanizing process.
[0050] The electric hoist 820 is controlled to release the wire rope downwards, lowering the metal workpiece into the galvanizing pot 300. During the lowering process, the indexing machine 810 on top of the RGV feed trolley 800 is simultaneously activated to steer the RGV feed trolley 800 to the longitudinal track. After the metal workpiece is galvanized, the electric hoist 820 winds the wire rope upwards, lifting the metal workpiece above the galvanizing pot 300.
[0051] At this time, the two sets of symmetrically arranged horizontal sliding doors 500 are controlled to move in opposite directions. The guide gears 610 at the top of each set of horizontal sliding doors can always mesh with the guide racks 220. At the same time, multiple guide gears 610 can also rotate synchronously under the drive of the ring chain 620, thereby preventing the horizontal sliding doors 500 from derailing when passing through the rail gap 210. In this way, when the two sets of horizontal sliding doors 500 are opened, the two sets of RGV feeding cars 800 can control the double wire ropes of the electric hoists 820 to keep the single rope direction aligned with the rail gap 210 and pass through, moving the galvanized metal workpiece outside the cover 100, thereby completing the galvanizing process of the metal workpiece.
[0052] In some embodiments, the top of the hood 100 is further provided with a plurality of air inlets 130, which are arranged in a rectangular array on the top of the hood 100. A flue gas retention chamber 140 communicating with each air inlet 130 is also provided inside the top of the hood 100. Through the connection between the air inlets 130 and the flue gas retention chamber 140, harmful fumes generated during the galvanizing process can be centrally treated, thereby reducing environmental pollution in the workshop. Simultaneously, the rectangular array layout of the air inlets 130 ensures uniform flue gas extraction, preventing localized airflow turbulence.
[0053] In some embodiments, a cross-shaped turning point is provided at the connection between the transverse track 410 and the longitudinal track. A steering positioning mechanism is provided at the cross-shaped turning point 430, and a rotary table 810 is located at the cross-shaped turning point 430. The rotary table 810 can form a closed-loop control with the steering positioning mechanism through a laser rangefinder sensor. The closed-loop control formed by the laser rangefinder sensor and the steering positioning mechanism can improve the steering positioning accuracy of the RGV feed car 800 at the cross-shaped turning point 430, thereby avoiding track jamming caused by positioning deviation.
[0054] In some embodiments, a ash-removing door 900 is also provided on the front of the hood 100. The ash-removing door 900 is located below the horizontal sliding door 500, and the ash-removing door 900 achieves vertical lifting and lowering functions outside the horizontal sliding door 500 via a lifting mechanism. After the metal workpiece is galvanized, the worker can enter the zinc pot zinc fume recovery hood through the upward-lifting ash-removing door 900 to perform the ash-removing operation on the metal workpiece. After the ash-removing operation is completed, the worker leaves the zinc pot zinc fume recovery hood, and the ash-removing door 900 descends and closes under the control of the lifting mechanism.
[0055] In some embodiments, the zinc pot zinc fume recovery hood is also equipped with an coded ruler, which works in conjunction with a barcode reader on the RGV feeding trolley 800. The coded ruler uses non-contact barcode reading technology to collect the position signal of the RGV feeding trolley 800 in real time. Upon receiving the corresponding position signal, the PLC triggers a solenoid valve or servo motor to control the double doors 110 to open, thereby achieving automatic feeding. Simultaneously, during the unloading process, the PLC determines whether the RGV feeding trolley 800 is in a safe area based on the position data fed back by the coded ruler, and then outputs control signals through corresponding modules to drive the two sets of horizontal sliding doors 500 to open to both sides, ultimately achieving automatic unloading.
[0056] In some embodiments, each group of horizontal sliding doors 500 can be a linked sliding door structure, such as... Figure 7 and Figure 8 As shown, each group of horizontal sliding doors 500 consists of multiple interconnected door panels 510. When the zinc pot zinc fume recovery hood is in the open state, the multiple interconnected door panels 510 are in the retracted state; when the zinc pot zinc fume recovery hood is in the closed state, the multiple interconnected door panels 510 unfold outwards to achieve the sealing function.
[0057] In contrast, the sliding door guide rail 200 at the top of the cover 100 also has a multi-layer structure, so that all the multi-linked door panels 510 are adapted to the sliding door guide rail 200. Each door panel 510 is provided with a drive mechanism of several synchronous guide gears 610 at its top, and each layer of sliding door guide rail 200 is also provided with a guide rack 220.
[0058] The various embodiments or implementation methods described in this specification are presented in a progressive manner. Each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.
[0059] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.
[0060] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.
[0061] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).
[0062] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0063] As used herein, the term "substrate" refers to the material on which subsequent material layers are added. The substrate itself may be patterned. The material added on top of the substrate may be patterned or may remain unpatterned. Furthermore, the substrate may include a wide range of materials, such as silicon, germanium, gallium arsenide, indium phosphide, etc. Alternatively, the substrate may be made of a non-conductive material (e.g., glass, plastic, or sapphire wafers).
[0064] The term "layer" as used herein can refer to a portion of material comprising a region of thickness. A layer may extend over the entire underlying or overlying structure, or may have a extent smaller than that of the underlying or overlying structure. Furthermore, a layer may be a region of a homogeneous or non-homogeneous continuous structure, with a thickness less than that of the continuous structure. For example, a layer may be located between the top and bottom surfaces of the continuous structure, or between any pairs of lateral planes at the top and bottom surfaces. A layer may extend laterally, vertically, and / or along a tapered surface. A substrate may be a layer, and may include one or more layers, and / or may have one or more layers located on, above, and / or below it. A layer may include multiple layers. For example, an interconnect layer may include one or more conductor and contact layers (forming contacts, interconnects, and / or vias therein) and one or more dielectric layers.
[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A zinc fume recovery hood with a horizontal sliding door, featuring end-in and side-out design, characterized in that... include: The cover has a double door hinged to its end face. Two sets of sliding door guide rails are symmetrically arranged on the top of the cover along the width direction. Each set of sliding door guide rails has a guide rack on its top surface and a rail gap along the width direction. The top of the cover has a joint that matches the rail gap. The bottom of the cover is also equipped with a galvanizing pot for holding high-temperature zinc liquid. The material travel rail includes a transverse rail parallel to the horizontal plane and a longitudinal rail perpendicularly connected to it, both located above the top of the cover. Two sets of horizontal sliding doors, each set of horizontal sliding doors is provided with at least three horizontally arranged sprockets at the top, each sprocket is coaxially provided with a guide gear that meshes with a guide rack on its side, and each sprocket is meshed with a ring chain to ensure that the guide gears rotate synchronously. The sprockets located at the ends are coaxially connected to the output shaft of the drive motor. The two sets of horizontal sliding doors are used to move towards each other to close the cover. Two RGV feeding cars are provided, each RGV feeding car is set on the material traveling rail, and each RGV feeding car has a hook at the bottom connected by a wire rope of an electric hoist. The wire rope moves out of the cover body through the rail gap and the joint. A rotary indexing machine is fixedly installed on the top of the cover and is used to change the traveling direction of the RGV feeding car.
2. The zinc fume recovery hood with end-to-end inlet and side-to-outlet design as described in claim 1, characterized in that, It also includes several air inlets; Several of the air inlets are arranged in a rectangular array on the top of the cover.
3. The zinc fume recovery hood with a horizontal sliding door at the end of the zinc pot and the side exit as described in claim 2, characterized in that, The top of the hood is provided with a flue gas retention chamber that communicates with each of the air inlets.
4. The zinc fume recovery hood with end-to-end inlet and side-to-outlet design according to claim 1, characterized in that, A cross-shaped turning point is provided at the connection between the transverse track and the longitudinal track. The indexing machine is located at the cross-shaped turning point and changes the traveling direction of the RGV feeding car.
5. The zinc fume recovery hood with a horizontal sliding door at the end and a side exit as described in claim 1, characterized in that, Both the transverse and longitudinal tracks are H-shaped steel structures.
6. The zinc fume recovery hood with end-to-end inlet and side-to-outlet zinc pot as described in claim 1, characterized in that, This also includes graying doors; The dust removal door is located on the front of the cover and below the horizontal sliding door. It is raised and lowered outside the horizontal sliding door by a lifting mechanism.
7. The zinc fume recovery hood with a horizontal sliding door at the end and a side exit as described in claim 1, characterized in that, The zinc pot zinc fume recovery hood is also equipped with a coding ruler, which is used to monitor the position of the RGV feeding car in real time, control the opening of the double door to realize automatic feeding, and control the opening of the horizontal sliding door to realize automatic discharging.