Cover body gas collection assembly

Abstract

The utility model belongs to the field of dust removal and environmental protection, and particularly relates to a cover body gas collection assembly which comprises a container, a cover body, a cover body rotating shaft, a collector and a communication pipeline detachably connected to the periphery of the upper portion of the cover body, and the side, facing the container, of the collector protrudes out of the outer edge of the cover body and is provided with an open hole facing the container; the device comprises a collector, a branch channel, a second main channel, a telescopic connecting channel and a first main channel, and the first main channel is communicated with the collector through the branch channel; when the cover body and the container are closed, the center line of the other end of the first main channel coincides with the center line of the telescopic end of the telescopic connecting channel, and when the telescopic end of the telescopic connecting channel extends outwards, the telescopic end of the telescopic connecting channel is in airtight communication with the other end of the first main channel. The device has the beneficial effects that primary flue gas generated in the covering (smelting and heat preservation) process of the smelting electric furnace is directly captured and prevented from entering a closed space, so that the working environment of workers is improved, and harmful flue gas is prevented from threatening the occupational health of the workers.

Description

Technical Field

[0001] The utility model belongs to the field of dust removal and environmental protection, and specifically relates to an air collecting component of a rotary cover body. Background Art

[0002] In recent years, with the rapid development of economy, the number of metallurgical steelmaking electric furnaces and boilers using raw coal as fuel has increased a lot. The atmospheric pollutants emitted by these furnaces have caused great harm to the surrounding environment. Therefore, the technology of removing particulate matter from dust-containing gases to reduce their emissions into the atmosphere has become increasingly important.

[0003] Especially in the foundry industry, large medium frequency melting furnaces are mainly divided into four stages during operation: iron mixing, smelting, insulation, and iron tapping, supplemented by slag removal, quenching and tempering, etc. The existing dust removal technology does not perform fixed-point dust removal at each stage, but instead fences and seals the entire melting furnace area, allowing the flue gas to gather at the top of the seal and then be discharged. This results in a poor air working environment for workers working in the closed area of ​​the melting furnace, especially during the cover (smelting, insulation) process. Although the instantaneous flue gas volume is less than that in the iron mixing and iron tapping stages, the total flue gas volume cannot be underestimated.

[0004] The prior art CN214060547U slag pot tilting cooling dust removal device discloses a cover gas collecting assembly, but does not solve the dust removal technical solution for the floating furnace body and the horizontal rotary cover, so there is an urgent need for a gas collecting assembly corresponding to the rotary cover. Summary of the invention

[0005] In order to effectively collect the smoke that continuously escapes from around the cover during the process of covering (smelting, heat preservation), and solve the dust removal difficulties of the horizontal rotating cover, the inventor uses a split structure to creatively disconnect the dust removal pipeline during rotation, and automatically connect the pipeline after deflection and closure, solving the problems in the prior art. The technical solution adopted by the utility model is: a cover gas collection component, including:

[0006] The container is a cavity for medium reaction;

[0007] A cover body, which is a cover body covering the opening of the container;

[0008] The cover body rotation shaft is a rotation shaft arranged on one side of the cover body, which enables the cover body to rotate horizontally;

[0009] The container opening is closed or opened by means of the cover;

[0010] The collector is a communication pipe detachably connected to the periphery of the upper part of the cover body, the collector protrudes from the outer edge of the cover body toward the container and is provided with an opening facing the container;

[0011] A second main channel, one end of which faces the cover body and the other end of which is connected to an external processing device of the cover body gas collecting assembly;

[0012] The telescopic connecting channel is a pipe with one end telescopically extending along a straight line, and the other end relative to the telescopic end is fixedly connected to the second main channel toward one end of the cover body;

[0013] A first main channel is located on the other side of the collector relative to the cover body, and a branch channel is provided on the main body of the first main channel;

[0014] The first main channel is connected to the collector via the branch channel;

[0015] One end of the first main channel is closed;

[0016] When the cover and the container are closed, the center line of the other end of the first main channel coincides with the center line of the telescopic end of the telescopic connecting channel, and the telescopic end of the telescopic connecting channel is airtightly connected with the other end of the first main channel when extended outward.

[0017] Furthermore, an outwardly expanding bell mouth is provided at the matching position between the first main channel and the telescopic end of the telescopic connecting channel, so as to guide the telescopic end of the telescopic connecting channel to be sleeved inside the first main channel.

[0018] Furthermore, a closing section which reduces in diameter toward the flow direction of the first main channel is provided at the junction of the branch channel and the collector.

[0019] Furthermore, the first main channel passes through the center line of the cover plane;

[0020] The branch channels are arranged in an even number and are symmetrically arranged on both sides of the first main channel.

[0021] Furthermore, the number of branch channels is 4.

[0022] Furthermore, the cover is circular, and the collector is a circular ring or an intermittent circular ring or a C-shape.

[0023] Furthermore, a connecting portion is provided on the collector and the cover body, and the collector and the cover body are detachably connected via the connecting portion.

[0024] Furthermore, the connecting portion is a rigid protrusion with a bolt hole which is fixedly arranged on the collector and the cover body respectively, and the connecting portion is detachably connected by bolts.

[0025] Furthermore, the collector is a connecting pipe with a rectangular cross section.

[0026] Furthermore, rigid frames for reinforcement are arranged at intervals on the collector.

[0027] The beneficial effects of the utility model compared with the prior art are as follows: the primary flue gas generated by the smelting electric furnace during the process of sealing the cover (smelting and heat preservation) is directly captured to prevent the primary flue gas from entering the closed space, thereby improving the working environment of the workers and preventing harmful flue gas from threatening the occupational health of the workers. The detachable pipe form is used to achieve connection and disconnection during the rotation of the cover. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view of a specific implementation method of the utility model;

[0029] Figure 2 It is a top view of the connection state of a specific embodiment of the utility model;

[0030] Figure 3 This is a top view of the cover body of the utility model in a separated state after rotation;

[0031] Figure 4 This is an axial view of a specific implementation method of the utility model;

[0032] Figure 5 This is an axial view of the cover connection portion of a specific embodiment of the utility model;

[0033] The annotation is represented as:

[0034] 110-first main channel; 120-second main channel; 130-telescopic connecting channel; 140-branch channel;

[0035] 200 - Collector;

[0036] 300-cover body; 310-cover body rotation axis; 320-cover body connecting part;

[0037] 400-Container. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the utility model.

[0039] In order to overcome the instantaneous flue gas volume generated during the process of covering (smelting, heat preservation) and solve the dust removal difficulties of the horizontal rotating cover, the inventor uses a split structure to creatively disconnect the dust removal pipeline during rotation and automatically connect the pipeline after deflection and closure, solving the problems in the prior art. Figures 1 to 5 The technical solution adopted by the utility model is: a cover gas collecting component, comprising:

[0040] The container 400 is a cavity for medium reaction; in this specific embodiment, the container 400 refers to the cover of the medium frequency smelting electric furnace.

[0041] The cover body 300 is a cover body covering the opening of the container 400. In the present embodiment, the cover body 300 is a circular or umbrella-shaped cover body. In other embodiments, it may be a rectangular or polygonal cover body. The purpose is to achieve closure.

[0042] The cover body rotation shaft 310 is a rotation shaft provided on one side of the cover body 300, and enables the cover body 300 to rotate horizontally;

[0043] The opening of the container 400 is closed or opened by means of the cover 300 .

[0044] The difficulty of the present invention is how to overcome the problem of close dust collection in the application scenario of the horizontally rotating movable cover 300.

[0045] The collector 200 is a communication pipe detachably connected to the upper periphery of the cover 300. The collector 200 protrudes from the outer edge of the cover 300 toward the container 400 and is provided with an opening toward the container 400; see Figure 1 The lower edge of the collector 200 slightly protrudes from the outer edge of the cover body 300 so that the overflowed smoke can be collected by negative pressure or the like as soon as possible. In some embodiments, in order to improve the dust collection efficiency, a flared mouth or an eagle-like flange is provided at the outer edge to improve the absorption efficiency.

[0046] It should be noted that in this embodiment, the collector 200 is a connected pipe, and the function of the collector 200 is to be a collection port arranged at the edge of the cover 300. A naturally discontinuous arrangement can also achieve the same collection effect. Therefore, the collector 200 as a whole does not necessarily have to be continuous.

[0047] A second main channel 120, one end of which faces the cover body 300, and the other end of which is connected to an external processing device of the cover body gas collecting assembly;

[0048] The telescopic connecting channel 130 is a pipe that can be telescoped in a straight line at one end, and the other end relative to the telescopic end is fixedly connected to the second main channel 120 toward the end of the cover body 300; please note that in some embodiments, the fixed connection end of the telescopic connecting channel 130 may be on the first main channel 110, and connected to the second main channel 120 through a telescopic form. The two forms should belong to equivalent connection forms, and the main difference lies in the layout position of the active telescopic mechanism.

[0049] The first main channel 110 is located on the other side of the collector 200 relative to the cover body 300, and a branch channel 140 is arranged on the main body of the first main channel 110; in this embodiment, the branch channel 140 also plays a role in fixing and supporting the first main channel 110, so that the first main channel 110 and the cover body 300 are connected as a whole.

[0050] The first main channel 110 is connected to the collector 200 via the branch channel 140;

[0051] One end of the first main channel 110 is closed;

[0052] When the cover 300 and the container 400 are closed, the center line of the other end of the first main channel 110 coincides with the center line of the telescopic end of the telescopic connection channel 130, and when the telescopic end of the telescopic connection channel 130 is extended, it is in airtight communication with the other end of the first main channel 110. The inventive point of the utility model is to use the technical means of center line coincidence to achieve separation and communication.

[0053] In some embodiments, in order to facilitate connection and improve connection accuracy and air tightness, an outward-expanding bell mouth is provided at the cooperation between the first main channel 110 and the telescopic end of the telescopic connecting channel 130 to guide the telescopic end of the telescopic connecting channel 130 to be inserted into the interior of the first main channel 110 .

[0054] In some embodiments, in order to improve the smoothness of smoke absorption and reduce air resistance, a closing section with a reduced diameter toward the flow direction of the first main channel 110 is provided at the junction between the branch channel 140 and the collector 200 .

[0055] See also Figure 2 and Figure 4 In some embodiments, the first main channel 110 passes through the center line of the cover 300 plane; when the cover 300 plane is symmetrical, the projection of the first main channel 110 is on the symmetry axis of the cover 300. In addition to aesthetics, it is also to improve the stability of the overall equipment and the stability after removal and hoisting. Because the protective layer in the cover 300 needs to be replaced regularly, but the gas collection assembly does not need to be replaced frequently, it needs to be removed frequently to facilitate the repair of the cover 300.

[0056] The branch channels 140 are arranged in an even number and are symmetrically arranged on both sides of the first main channel 110 .

[0057] The preferred ending solution is that the number of the branch channels 140 is 4.

[0058] In this embodiment, the cover 300 is circular, and the collector 200 is a circular ring or an intermittent circular ring or a C-shape.

[0059] In some embodiments, the collector 200 and the cover 300 are provided with a connecting portion 320, and the collector 200 and the cover 300 are detachably connected by means of the connecting portion 320. Referring to the above description, the connecting portion 320 is provided separately for easy disassembly, and the connecting portion 320 is a rigid protrusion with a bolt hole that is fixedly provided on the collector 200 and the cover 300, respectively, and the connecting portion 320 is detachably connected by bolts.

[0060] In some implementations, the collector 200 is a communicating pipe with a rectangular cross section, and rigid frames for reinforcement are arranged at intervals on the collector 200 .

[0061] Specifically, during operation, when the cover body 300 is closed, the telescopic connecting channel 130 extends out and connects with the first main channel 110. The second main channel 120 generates suction due to external equipment. The smoke is collected by the collector 200 and enters the first main channel 110 with the help of the branch channel 140 and is discharged in sequence. When the cover body 300 is flipped and separated, the telescopic connecting channel 130 retracts and the medium in the container 400 is taken out. When it needs to be closed again, the telescopic connecting channel 130 extends out to achieve the purpose of dust collection.

[0062] The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the present invention according to the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cover gas collecting assembly, characterized in that: include: The container (400) is a cavity for medium reaction; The cover body (300) is a cover body covering the opening of the container (400); The cover body rotating shaft (310) is a rotating shaft arranged on one side of the cover body (300) and enables the cover body (300) to rotate horizontally; The opening of the container (400) is closed or opened by means of the cover (300); The collector (200) is a communication pipe detachably connected to the periphery of the upper portion of the cover body (300); the collector (200) protrudes from the outer edge of the cover body (300) on the side facing the container (400) and is provided with an opening facing the container (400); A second main channel (120), one end of which faces the cover (300) and the other end of which is in communication with an external processing device of the cover gas collecting assembly; The telescopic connecting channel (130) is a pipe with one end telescopically extending along a straight line, and the other end relative to the telescopic end is fixedly connected to one end of the second main channel (120) toward the cover body (300); A first main channel (110) is located on the other side of the collector (200) relative to the cover body (300), and a branch channel (140) is provided on the main body of the first main channel (110); The first main channel (110) is in communication with the collector (200) via the branch channel (140); One end of the first main channel (110) is closed; When the cover (300) and the container (400) are closed, the center line of the other end of the first main channel (110) coincides with the center line of the telescopic end of the telescopic connecting channel (130), and when the telescopic end of the telescopic connecting channel (130) is extended outward, it is in airtight communication with the other end of the first main channel (110).

2. The cover gas collecting assembly according to claim 1, characterized in that: An outwardly expanding bell mouth is provided at the matching position between the first main channel (110) and the telescopic end of the telescopic connecting channel (130), guiding the telescopic end of the telescopic connecting channel (130) to be sleeved inside the first main channel (110).

3. The cover gas collecting assembly according to claim 1, characterized in that: A closing section with a reduced diameter toward the flow direction of the first main channel (110) is provided at the junction between the branch channel (140) and the collector (200).

4. The cover gas collecting assembly according to claim 1, characterized in that: The first main channel (110) passes through the center line of the plane of the cover body (300); The branch channels (140) are arranged in an even number and are symmetrically arranged on both sides of the first main channel (110).

5. The cover gas collecting assembly according to claim 4, characterized in that: The number of the branch channels (140) is 4.

6. The cover gas collecting assembly according to claim 1, characterized in that: The cover (300) is circular, and the collector (200) is in the shape of a ring or an intermittent ring or a C-shape.

7. The cover gas collecting assembly according to claim 1, characterized in that: The collector (200) and the cover body (300) are provided with a connecting portion (320), and the collector (200) and the cover body (300) are detachably connected by means of the connecting portion (320).

8. The cover gas collecting assembly according to claim 7, characterized in that: The connecting portion (320) is a rigid protrusion with a bolt hole that is fixedly arranged on the collector (200) and the cover body (300), respectively, and the connecting portion (320) is detachably connected by bolts.

9. The cover gas collecting assembly according to claim 1, characterized in that: The collector (200) is a communicating pipe with a rectangular cross section.

10. The cover gas collecting assembly according to claim 9, characterized in that: Rigid frames for reinforcement are arranged at intervals on the collector (200).

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