Side-suction and top-suction zinc smoke collecting device

Abstract

The utility model relates to the technical field of zinc smoke treatment devices, in particular to a side-suction and top-suction zinc smoke collecting device. According to the side-suction and top-suction zinc smoke collecting device provided by the embodiment of the invention, the side-suction gas collecting tank and the top-suction gas collecting pipe are respectively arranged on the side surface and the top surface of the zinc smoke hood, so that zinc smoke gathered in the zinc smoke hood can be respectively discharged to an external collecting and filtering device in a side-suction and top-suction manner; therefore, the zinc smoke can be effectively removed. Meanwhile, the photoelectric sensor can monitor the opening and closing state of the lifting door, and when the lifting door is in the opening state, the photoelectric sensor can send out a control signal to control the second electric valve to be switched.

Description

Technical Field

[0001] This application relates to the technical field of zinc fume treatment devices, and more specifically, to a side-suction and top-suction zinc fume collection device. Background Technology

[0002] Hot-dip galvanizing is a metal surface treatment technology. During the hot-dip galvanizing process, zinc is heated to a molten state and then reacts with the iron substrate to form a zinc-iron alloy layer. Zinc fumes are formed during this process. Since the main components of zinc fumes are heavy metal particles, long-term exposure can affect health.

[0003] In related technologies, dry dust collection is generally used to collect and treat zinc fumes. Specifically, the air carrying zinc fumes inside the zinc fume hood is first adsorbed by an air collection device, and then introduced into a bag filter to capture particulate matter in the zinc fumes using filter bags. Finally, the purified air is discharged to the outside through ducts.

[0004] During the actual collection process, workers need to open the lifting door of the zinc fume hood to observe the condition of the galvanized parts and perform ash removal. However, due to the low density of zinc fumes and the influence of rising hot air, the zinc fumes tend to accumulate at the top inside the zinc fume hood. This exposes workers to the zinc fume environment when they enter the hood, potentially causing irreversible damage to their health. Utility Model Content

[0005] In view of this, the present application provides a side-suction top-suction zinc fume collection device.

[0006] To achieve the above objectives, the embodiments of this application provide the following technical solutions:

[0007] A side-suction, top-suction zinc fume collection device, comprising:

[0008] A zinc fume hood, comprising a ceiling, side walls, a hinged door, and a lift door, wherein the side walls are located on a first side at the bottom of the ceiling, the hinged door is located on a second side at the bottom of the ceiling, and the side walls and the hinged door are perpendicular to each other, and the lift door is located below the side walls and is used to block the openings of the zinc fume hood;

[0009] A side-suction gas collection box is provided at the bottom end of the zinc fume hood and is connected to it. A first smoke extraction pipe is provided on the top surface of the side-suction gas collection box.

[0010] The top-mounted air collection pipe includes a second smoke pipe disposed on both sides of the side wall. The second smoke pipe passes through the side wall and is connected to the interior of the zinc fume hood. The second smoke pipe is located at the connection between the side wall and the ceiling.

[0011] A three-way pipe, the two ports of which are respectively connected to the first smoke pipe and the second smoke pipe, a first electric valve is provided between the three-way pipe and the first smoke pipe, and a second electric valve is provided between the three-way pipe and the second smoke pipe;

[0012] A photoelectric sensor, mounted on the side wall, is electrically connected to the first and second electric valves. The photoelectric sensor is used to monitor the height of the lifting door.

[0013] When the photoelectric sensor detects that the lifting door is raised, the photoelectric sensor sends a control signal to the second electric valve and controls the second electric valve to be in the open state.

[0014] In some possible implementations, the side-suction air collection box is located beside the swing door.

[0015] In some possible implementations, a guardrail assembly is provided at the upper end of the canopy, and the guardrail assembly is distributed on the same side as the side wall and the lifting door.

[0016] In some possible implementations, the other port of the tee is connected to a bag filter.

[0017] In some possible implementations, the swing door includes a door frame and a door body, with an electric push rod hinged to the side of the door frame, and the door frame is hinged to the door body via the electric push rod.

[0018] In some possible implementations, the swing door is an outward-opening structure.

[0019] The side-suction ceiling-mounted zinc fume collection device provided in this application embodiment has at least the following beneficial effects:

[0020] In the side-suction and top-suction zinc fume collection device provided in this application embodiment, side-suction collection boxes and top-suction collection pipes are respectively provided on the side and top of the zinc fume hood. This allows the zinc fumes accumulated inside the zinc fume hood to be discharged to the external collection and filtration device through side suction and top suction respectively, thereby effectively removing the zinc fumes. Simultaneously, a photoelectric sensor can monitor the opening and closing status of the lifting door. When the lifting door is open, the photoelectric sensor can send a control signal to keep the second electric valve always open, preventing workers from accidentally inhaling zinc fumes and affecting their health after entering the zinc fume hood. With the above structural design, not only can the top-suction collection pipe collect and treat the zinc fumes floating above the zinc fume hood, but it can also maintain the top suction mode when the zinc fume hood is open, thereby maximizing the protection of workers' health. Attached Figure Description

[0021] 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.

[0022] Figure 1 This is a schematic diagram of the side-suction ceiling zinc fume collection device provided in the embodiments of this application;

[0023] Figure 2 for Figure 1 A schematic diagram of another implementation of the swing door structure.

[0024] In the picture:

[0025] 100. Ceiling; 200. Side wall; 300. Hinged door; 310. Door frame; 320. Door body; 330. Electric push rod; 400. Lifting door; 500. Side suction air collection box; 510. First smoke extraction pipe; 600. Top suction air collection pipe; 610. Second smoke extraction pipe; 700. T-connector; 710. First electric valve; 720. Second electric valve; 800. Photoelectric sensor; 900. Guardrail assembly. Detailed Implementation

[0026] 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.

[0027] During the actual collection of zinc fumes, workers need to open the lifting door of the zinc fume hood to observe the condition of the galvanized parts and perform ash removal. However, due to the low density of zinc fumes and the influence of rising hot air, the fumes tend to accumulate at the top inside the hood. At this point, simply using side suction is insufficient to absorb and collect the fumes remaining at the top inside the hood. This exposes workers to the zinc fume environment when they enter the hood, potentially causing irreversible damage to their health.

[0028] In view of this, embodiments of this application provide a side-suction, top-suction zinc fume collection device to solve the above-mentioned technical problems. For example... Figures 1-2As shown in the figure, the side-suction and top-suction zinc fume collection device provided in this application embodiment includes a zinc fume hood, a side-suction gas collection box 500, a top-suction gas collection pipe 600, a three-way pipe 700, and a photoelectric sensor 800. The zinc fume hood is used for hot-dip galvanizing of workpieces. The zinc fume hood is assembled from a top canopy 100 and side walls 200 and hinged doors 300. The bottom end of the canopy 100 is connected to the side walls 200 and hinged doors 300, respectively. The side walls 200 and hinged doors 300 are respectively located on the first and second sides of the canopy 100, and the side walls 200 and hinged doors 300 are perpendicular to each other.

[0029] A lifting door 400 is also provided below the side wall 200, which can move up and down relative to the side wall 200. When the lifting door 400 moves upward, it opens the opening of the zinc fume hood, allowing workers to enter the hood to inspect the galvanizing status of the workpieces and to promptly perform ash removal on the surface of the galvanized workpieces. Regarding the specific structure of the lifting door 400, it can be a folding roller shutter structure or a structure in which the door leaf is lifted upward by a mechanical device. These structures are all conventional techniques in the art, and will not be described in detail here.

[0030] In this embodiment, the side-suction gas collection box 500 is located at the bottom of the zinc fume hood, and the side-suction gas collection box 500 is connected to the internal space of the zinc fume hood. A first smoke extraction pipe 510 connected to the zinc fume hood is provided on the top surface of the side of the side-suction gas collection box 500. The design of the side-suction gas collection box 500 is closer to the zinc liquid surface, thus enabling it to quickly lock onto and extract the zinc fumes. Furthermore, it effectively shortens the rising distance of the zinc fumes, thereby improving the adsorption and collection effect of the zinc fumes. Continuing as... Figure 1 As shown, the side-suction collection pipe includes second smoke extraction pipes 610 disposed on both sides of the top of the side wall 200. The second smoke extraction pipes 610 are arranged parallel to the side wall 200 via supports. The second smoke extraction pipes 610 penetrate the side wall 200 and connect to the interior of the zinc fume hood. The second smoke extraction pipes 610 are located near the connection between the side wall 200 and the ceiling 100. In other words, the side-suction collection pipe is installed near the ceiling 100, thus enabling it to absorb and collect the zinc fumes remaining at the top of the zinc fume hood through the second smoke extraction pipes 610.

[0031] The tee pipe 700 is a pipe connector with three ports. Two ports of the tee pipe 700 are connected to the first smoke extraction pipe 510 and the second smoke extraction pipe 610, respectively. Furthermore, the tee pipe 700 is connected to the first smoke extraction pipe 510 via a first electric valve 710, and to the second smoke extraction pipe 610 via a second electric valve 720. Both the first and second electric valves 710 can adjust the airflow. In actual use, the airflow can be adjusted using the first and second electric valves 710 and 720 according to the distribution of zinc fumes within the zinc fume hood, thereby achieving the function of localized adsorption and collection of zinc fumes.

[0032] In this embodiment, a photoelectric sensor 800 is also installed on the side wall 200 of the zinc fume hood. The photoelectric sensor 800 is located beside the lifting door 400. The photoelectric sensor 800 can be used to monitor the height of the lifting door 400 and control the opening and closing state of the second electric valve 720 through electrical connection. When the transmitter of the photoelectric sensor 800 emits a light signal, the receiver receives the light signal, indicating that the lifting door 400 is in the open state. At this time, the photoelectric sensor 800 will send a control signal to the second electric valve 720 to keep it in the open state.

[0033] In the side-suction and top-suction zinc fume collection device provided in this application embodiment, a side-suction collection box 500 and a top-suction collection pipe 600 are respectively provided on the side and top of the zinc fume hood. This allows the zinc fumes accumulated inside the zinc fume hood to be discharged to the external collection and filtration device through side suction and top suction respectively, thereby effectively removing the zinc fumes. Simultaneously, the photoelectric sensor 800 can also monitor the opening and closing status of the lifting door 400. When the lifting door 400 is open, the photoelectric sensor 800 can send a control signal to keep the second electric valve 720 always open, preventing workers from accidentally inhaling zinc fumes and affecting their health after entering the zinc fume hood. With the above structural design, not only can the top-suction collection pipe 600 collect and treat the zinc fumes floating above the zinc fume hood, but the top suction mode can also be kept open when the zinc fume hood is open, thereby maximizing the protection of workers' health.

[0034] In some embodiments, a guardrail assembly 900 is also provided at the top of the canopy 100, and the guardrail assembly 900 is distributed on the same side as the side wall 200 and the lifting door 400. Workers can reach the canopy 100 of the zinc fume hood via a ladder or lifting mechanism, and promptly perform routine maintenance and subsequent repairs and replacements on the top suction collection pipe 600.

[0035] In some embodiments, the other port of the tee pipe 700 is connected to an external filter collection device; specifically, the tee pipe 700 can be connected to a bag filter. The air carrying zinc fumes inside the zinc fume hood can be adsorbed by the air collection device and then introduced into the bag filter to capture particulate matter in the zinc fumes using filter bags. Finally, the purified air is discharged to the outside through a pipe.

[0036] In some embodiments, such as Figure 2 As shown, the swing door 300 includes a door frame 310 and a door body 320. An electric push rod 330 is hinged to the side of the door frame 310, and one end of the electric push rod 330 is hinged to the surface of the door body 320, thus enabling automatic door opening. Preferably, the swing door 300 has an outward-opening structure, which prevents zinc fume particles from adhering to the door panel.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] 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 top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0041] 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.

[0042] 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).

[0043] 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.

[0044] 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 side-suction, top-suction zinc fume collection device, characterized in that, include: A zinc fume hood, comprising a ceiling (100), side walls (200), a swing door (300), and a lift door (400). The side walls (200) are located on a first side at the bottom of the ceiling (100), and the swing door (300) is located on a second side at the bottom of the ceiling (100). The side walls (200) and the swing door (300) are perpendicular to each other. The lift door (400) is located below the side walls (200) and is used to block the openings of the zinc fume hood. A side-suction gas collection box (500) is provided at the bottom end of the zinc fume hood and connected thereto. A first smoke extraction pipe (510) is provided on the top surface of the side-suction gas collection box (500). The top suction collection pipe (600) includes a second smoke pipe (610) disposed on both sides of the side wall (200). The second smoke pipe (610) passes through the side wall (200) and is connected to the interior of the zinc fume hood. The second smoke pipe (610) is located at the connection between the side wall (200) and the ceiling (100). A three-way pipe (700) is provided, the two ports of which are respectively connected to the first smoking pipe (510) and the second smoking pipe (610). A first electric valve (710) is provided between the three-way pipe (700) and the first smoking pipe (510), and a second electric valve (720) is provided between the three-way pipe (700) and the second smoking pipe (610). A photoelectric sensor (800) is disposed on the side wall (200). The photoelectric sensor (800) is electrically connected to the first electric valve (710) and the second electric valve (720). The photoelectric sensor (800) is used to monitor the height of the lifting door (400). When the photoelectric sensor (800) detects that the lifting door (400) is raised, the photoelectric sensor (800) sends a control signal to the second electric valve (720) and controls the second electric valve (720) to be in the open state.

2. The side-suction top-suction zinc fume collection device according to claim 1, characterized in that: The side-suction air collection box (500) is located beside the swing door (300).

3. The side-suction top-suction zinc fume collection device according to claim 1, characterized in that: The upper end of the canopy (100) is provided with a guardrail assembly (900), which is distributed on the same side of the side wall (200) and the lifting door (400).

4. The side-suction top-suction zinc fume collection device according to claim 1, characterized in that: The other port of the tee (700) is connected to the bag filter.

5. The side-suction top-suction zinc fume collection device according to claim 1, characterized in that: The swing door (300) includes a door frame (310) and a door body (320). An electric push rod (330) is hinged to the side of the door frame (310), and the door frame (310) is hinged to the door body (320) through the electric push rod (330).

6. The side-suction top-suction zinc fume collection device according to claim 5, characterized in that: The swing door (300) has an outward opening structure.

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