Special unpowered switching mechanism for gas collection suction hood

Abstract

The utility model discloses a special unpowered switching mechanism for a gas collection suction hood, which comprises a movable suction hood, rotating shafts arranged at intervals are arranged on the movable suction hood, blades are arranged on the rotating shafts, an air pipe is arranged on one side of the movable suction hood, and an air door component is arranged in the air pipe. A limiting switch is arranged on the side, close to the blades, of the movable suction cover. A semi-closed suction hood structure is adopted, a steel structure and a peripheral sealing plate are adopted, a space for storing smoke dust is arranged at the top, meanwhile, the top of the suction hood adopts an inclined plane design, the smoke dust flows and gathers towards the highest point (a dust suction port) due to the rising force of the smoke dust, the dust suction effect is better, a blade design is adopted at the butt joint position of the movable suction hood, the air suction amount is guaranteed, and the dust suction efficiency is improved. And meanwhile, the sealing effect of the suction hood is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of pollution control, in particular to a special non-powered switch mechanism for a gas collection suction hood. Background Art

[0002] During the smelting process, the electric furnace releases a large amount of high-temperature dusty flue gas, which pollutes the environment. Industrial countries with advanced electric furnace flue gas purification technology have passed the initial stage and entered the mature stage of development, while my country's electric furnace has a large loading volume, high oxygen intensity, poor factory conditions, and the purification technology started late.

[0003] The existing mobile collection hood is sometimes not accurately positioned and cannot be docked with the work station very accurately, resulting in leakage when the smoke is removed and an unsatisfactory sealing effect. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a non-powered switch mechanism dedicated to a gas collection hood. The semi-enclosed hood structure is adopted, and a steel structure plus surrounding sealing plates are designed. A space for storing smoke and dust is provided on the top. At the same time, an inclined surface design is adopted on the top of the hood. The smoke and dust flow and gather toward the highest point (dust suction port) due to their own rising force, and the dust suction effect is better. The blade design is adopted at the interface position of the movable hood to ensure the suction volume, while also ensuring the sealing effect of the hood.

[0005] In order to solve the above technical problems, the utility model provides a special non-powered switch mechanism for a gas collection hood, including a movable hood, the movable hood is provided with a rotating shaft arranged at intervals, the rotating shaft is provided with blades, an air duct is provided on one side of the movable hood, and a damper assembly is provided in the air duct; a limit switch is provided on the side of the movable hood close to the blade.

[0006] Furthermore, a wear-resistant sealing material is provided at a position on the air duct that contacts the movable suction cover, and a smoothly polished positioning plane is provided at a position on the movable suction cover that corresponds to the wear-resistant sealing material.

[0007] Furthermore, the movable suction hood is a semi-open structure, which is composed of a steel structure and four-sided sealing panels.

[0008] Furthermore, the damper assembly specifically adopts a pneumatic damper structure.

[0009] Furthermore, the top of the movable suction hood adopts a slope design, and the highest point of the slope is the dust suction port.

[0010] Beneficial effects of the utility model: The mobile suction hood of the device adopts a semi-enclosed design, with a steel structure and surrounding sealing plates. A space for storing smoke and dust is provided on the top. At the same time, the top of the suction hood adopts an inclined design. The smoke and dust flow and converge to the highest point (suction port) due to their own rising force, and the dust collection effect is better. The mobile suction hood adopts a blade design at the interface to ensure the suction volume and the sealing effect of the suction hood. All suction points on the moving path are equipped with precise positioning devices, which can minimize the docking error of the dust suction port and reduce air leakage on the suction surface, thereby reducing air volume loss and ensuring the dust removal effect of the work station. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a cross-sectional view of the present utility model.

[0013] Figure 3 It is an enlarged view of part of the structure of the utility model.

[0014] Explanation of the numbers in the figure: 1. movable suction hood; 2. rotating shaft; 3. blades; 4. air duct; 5. damper assembly; 6. limit switch; 7. wear-resistant sealing material; 8. positioning plane; 9. dust suction port. DETAILED DESCRIPTION

[0015] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0016] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0017] 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 utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0018] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0020] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0021] Reference Figures 1 to 3 As shown, an embodiment of a non-powered switch mechanism dedicated to a gas collection hood of the utility model comprises a mobile hood 1, on which a rotating shaft 2 arranged at intervals is provided, on which a blade 3 is provided, a wind duct 4 is provided on one side of the mobile hood 1, and a damper assembly 5 is provided in the wind duct 4; a limit switch 6 is provided on one side of the mobile hood 1 close to the blade 3, and the damper assembly 5 specifically adopts a pneumatic damper structure.

[0022] During use, the equipment is started, and the mobile suction hood 1 moves to the pipe interface where smoke and dust need to be collected under the control of the limit switch 6, and the blades 3 are in a closed state. When the suction hood moves to the docking point limit, it automatically stops and links the corresponding damper assembly 5 to open. The blades 3 overcome gravity and rotate to the side of the damper assembly 5 due to the negative pressure. At this time, the blades 3 corresponding to the dust suction port 9 are all in an open state, and the dust-containing gas is collected by the mobile suction hood 1. The top of the mobile suction hood 1 adopts a slope design, and the smoke and dust flow and converge to the highest point (dust suction port 9) due to its own rising force, and the dust collection effect is better. Even if the collection surface of the mobile suction hood 1 is not 100% docked with the interface position, the blades 3 of the part that is not sucked are also in a closed state, and no smoke leakage will occur. This not only ensures the suction volume, but also ensures the sealing effect of the mobile suction hood 1, and can be applied to dust removal pipeline stations with different suction port sizes and positions.

[0023] All dust suction points on the moving path are equipped with precise positioning devices, which can minimize the docking error of the dust suction port 9 and reduce air leakage on the suction surface, thereby reducing air volume loss and ensuring the dust removal effect of the work station.

[0024] A wear-resistant sealing material 7 is provided at a position of the air duct 4 in contact with the movable suction cover 1, and a smoothly polished positioning plane 8 is provided at a position of the movable suction cover 1 corresponding to the wear-resistant sealing material 7 to play a sealing role.

[0025] The above-described embodiments are only preferred embodiments for fully illustrating the present utility model, and the protection scope of the present utility model is not limited thereto. Equivalent substitutions or changes made by technicians in the technical field on the basis of the present utility model are all within the protection scope of the present utility model. The protection scope of the present utility model shall be subject to the claims.

Claims

1. A non-powered switch mechanism for a gas collection hood, characterized in that: The invention comprises a movable suction hood (1), wherein the movable suction hood (1) is provided with rotating shafts (2) arranged at intervals, wherein blades (3) are provided on the rotating shafts (2), and an air duct (4) is provided on one side of the movable suction hood (1), wherein an air door assembly (5) is provided in the air duct (4); A limit switch (6) is provided on a side of the movable suction cover (1) close to the blade (3).

2. The non-powered switch mechanism for a gas collection hood as claimed in claim 1, characterized in that: A wear-resistant sealing material (7) is provided at a position on the air duct (4) in contact with the movable suction cover (1), and a smoothly polished positioning plane (8) is provided at a position on the movable suction cover (1) corresponding to the wear-resistant sealing material (7).

3. The non-powered switch mechanism for a gas collection hood as claimed in claim 1, characterized in that: The movable suction hood (1) is a semi-open structure, composed of a steel structure and four sealing plates.

4. The non-powered switch mechanism for a gas collection hood as claimed in claim 1, characterized in that: The damper assembly (5) specifically adopts a pneumatic damper structure.

5. The non-powered switch mechanism for a gas collection hood as claimed in claim 1, characterized in that: The top of the movable suction hood (1) is designed with an inclined surface, and the highest point of the inclined surface is the dust suction port (9).

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