CN216606577U

CN216606577U - Movable dust hood

Info

Publication number: CN216606577U
Application number: CN202123420226.1U
Authority: CN
Inventors: 陈怀哲
Original assignee: Liaoyang Huayu Heavy Industry Machinery Manufacturing Co ltd
Current assignee: Liaoyang Huayu Heavy Industry Machinery Manufacturing Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-05-27
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a movable dust hood which comprises a dust suction pipe, wherein an expansion joint is movably connected inside the dust suction pipe, the bottom of the expansion joint is communicated with a dust hood through a sealing piece, walking wheels are arranged on two sides of the outer wall of the dust hood, a sealing door is arranged on the front surface of the dust hood, and the sealing door is provided with a sealing rubber strip and an execution assembly. The utility model relates to the technical field of electric arc furnaces, realizes the displacement of a dust collecting hood, can communicate and seal a telescopic joint and a dust collecting pipe, has small visible smoke dust in a workshop in the using process, has good sealing and no air leakage because sealing liquid is filled in an annular groove, can move the dust collecting hood during the operations of electric furnace maintenance, furnace cover opening, battery replacement and the like, cannot influence the normal operation, is easy to enter the dust collecting pipe for concentration because of a top suction type forty-degree-angle dust collecting hood, and can complete smelting procedures of rotating a furnace cover, feeding, furnace tilting, cylinder discharging and the like due to the size of the space in the dust collecting hood.

Description

Movable dust hood

Technical Field

The utility model relates to the technical field of electric arc furnaces, in particular to a movable dust hood.

Background

An electric arc furnace (electric arc furnace) utilizes an electric furnace which is used for smelting ores and metals at high temperature and is generated by electrode arc, energy is concentrated when gas discharge forms electric arc, the temperature of an arc zone is more than 3000 ℃, for smelting metals, the process flexibility of the electric arc furnace is higher than that of other steel-making furnaces, impurities such as sulfur, phosphorus and the like can be effectively removed, the furnace temperature is easy to control, the floor area of equipment is small, and the electric arc furnace is suitable for smelting high-quality alloy steel.

In the middle of electric arc furnace production in the past, mostly adopt collection cigarette in the whole workshop to collect the cigarette, perhaps choose for use semi-fixed, semi-movable dust cage, the workshop top is inhaled formula dust and is gathered the shortcoming and lie in that the smoke and dust is too big in the whole workshop, can cause the health injury to the workshop workman when the workshop air is not good, and the dust excluding hood need be opened to half quiet semi-dynamic formula shortcoming lies in the installation and dismantles electric shock, rotatory bell, hopper such as reinforced, and the environmental protection requirement is not allowed, and the workman operates inconveniently.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a movable dust hood, which solves the problems that the ceiling type dust collection in a workshop is over large smoke dust in the whole workshop, and the semi-static and semi-dynamic type dust hoods have the defects that the dust hood needs to be opened for installing and disassembling electric shocks, rotating a furnace cover, feeding and the like, the environmental protection requirement is not allowed, and the operation of workers is inconvenient.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a movable dust hood comprises a dust collection pipe, wherein an expansion joint is movably connected inside the dust collection pipe, the bottom of the expansion joint is communicated with a dust hood through a sealing piece, walking wheels are arranged on two sides of the outer wall of the dust hood, a sealing door is arranged on the front surface of the dust hood, and the sealing door is provided with a sealing rubber strip and an execution assembly;

the seal comprises a circular ring and an annular groove; the ring is arranged at the top of the dust collection cover, and the top of the ring is provided with an annular groove corresponding to the telescopic joint.

Preferably, the telescopic joint is driven by a driving assembly; the driving assembly comprises a gear, teeth and a driving device; the gear rotates and is connected to the inside of the dust collection pipe, the gear is meshed with the expansion joint through teeth, and the gear is provided with a driving device fixedly connected to the outer wall of the dust collection pipe.

Preferably, the driving device is electrically connected with an upper limit switch and a lower limit switch, the upper limit switch is arranged at the bottom of the dust suction pipe, and the lower limit switch is arranged at the top of the circular ring.

Preferably, the executing assembly comprises a telescopic rod and a bracket; the two ends of the telescopic rod are rotatably connected with brackets which are respectively fixedly connected with the dust hood and the closed door.

Preferably, a sealing sleeve is arranged between the telescopic joint and the dust suction pipe.

The utility model provides a movable dust hood. The method has the following beneficial effects: the movable dust hood realizes the displacement of the dust hood through the cooperation between the travelling wheels, the dust hood, the sealing door and the annular groove, the expansion joint and the dust suction pipe can be communicated and sealed, then the sealing door is closed, the movable dust hood is integrally covered outside the electric arc furnace, the collection of smoke dust is realized, the visible smoke dust in the workshop is small in the using process, the smoke dust in the furnace is fully absorbed, the sealing liquid is filled in the annular groove, the sealing is good, the wind is not leaked, the dust hood can move in the operations of electric furnace maintenance, furnace cover opening, electric furnace replacement and the like, the normal operation cannot be influenced, in addition, the smoke dust easily enters the dust collection pipe for concentration, and the smelting procedures of rotating furnace covers, furnace tilting, cylinder discharging actions and the like can be completed due to the size of the space in the dust hood.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a right side view of FIG. 1;

fig. 3 is a schematic structural view of the ring, the expansion joint and the dust collection cover in fig. 2.

In the figure: 1. the device comprises a sealing piece, 101, a circular ring, 102, an annular groove, 2, a driving component, 201, a gear, 202, teeth, 203, a driving device, 3, an execution component, 301, a telescopic rod, 302, a support, 4, a dust suction pipe, 5, a telescopic joint, 6, a sealing sleeve, 7, a dust collection cover, 8, a sealing rubber strip, 9, an upper limit switch, 10, a lower limit switch, 11, a traveling wheel, 12 and a sealing door.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

All the electrical components in the present application are connected with the power supply adapted to the electrical components through a wire, and an appropriate controller and an appropriate encoder should be selected according to actual conditions to meet control requirements, and specific connection and control sequences should be obtained.

The following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.

Example (b):

as shown in fig. 1, 2 and 3, a movable dust hood comprises a dust suction pipe 4, an expansion joint 5 is movably connected inside the dust suction pipe 4, the expansion joint 5 is arranged inside the dust suction pipe 4 and inserted into an annular groove 102 through downward movement, a sealing effect is realized by injecting water or other liquid into the annular groove 102, the bottom of the expansion joint 5 is communicated with a dust hood 7 through a sealing piece 1, walking wheels 11 are arranged on both sides of the outer wall of the dust hood 7, the walking wheels 11 are matched with an external rail for use and play a supporting role for the dust hood 7, the dust hood 7 can move to the outside of an electric arc furnace along the external rail, a sealing door 12 is arranged on the front side of the dust hood 7, the sealing door 12 is opened to facilitate the movement of the dust hood 7 to the outside, the sealing door 12 is closed, so that the dust hood 7 and the sealing door 12 form a closed hood and wrap the outside of the electric arc furnace, the closing door 12 is provided with a sealing rubber strip 8 and an actuating assembly 3; the seal 1 comprises a circular ring 101 and a circular groove 102; the ring 101 is arranged at the top of the dust collection cover 7, the top of the inner wall of the dust collection cover 7 has an inclination angle of forty degrees, the top of the ring 101 is provided with an annular groove 102 corresponding to the telescopic joint 5, the annular groove 102 corresponds to the bottom of the telescopic joint 5, water or other liquid is placed in the annular groove, and when the telescopic joint 5 is inserted into the annular groove, the sealing effect is achieved.

In the specific implementation process, it is worth mentioning that the telescopic joint 5 is arranged inside the dust collection pipe 4, and is inserted into the annular groove 102 through downward movement, and water or other liquid is injected into the annular groove 102 to achieve a sealing effect, the traveling wheel 11 is used in cooperation with an external rail, and plays a supporting role on the dust collection cover 7, and the dust collection cover 7 can move to the outside of the electric arc furnace along the external rail, the closing door 12 is opened, so that the dust collection cover 7 can move to the outside of the electric arc furnace, and the closing door 12 is closed, so that the dust collection cover 7 and the closing door 12 form a closed cover and are wrapped outside the electric arc furnace.

Further, the telescopic joint 5 is driven by the driving component 2; the driving assembly 2 comprises a gear 201, teeth 202 and a driving device 203; gear 201 rotates to be connected in the inside of dust absorption pipe 4, and gear 201 passes through tooth 202 and expansion joint 5 meshing and links to each other, through the cooperation of gear 201 and tooth 202, has realized that gear 201 changes all can drive expansion joint 5 and move from top to bottom along the inner wall of dust absorption pipe 4, and gear 201 is installed the drive arrangement 203 of rigid coupling in dust absorption pipe 4 outer wall.

In the specific implementation process, it is worth to be noted that the gear 201 and the teeth 202 are matched to drive the telescopic joint 5 to move up and down along the inner wall of the dust collection pipe 4 in rotation, wherein the driving device 203 can be a servo motor or other structures, and is not limited specifically, so that the operation is realized.

Specifically, when using this portable dust excluding hood, link to each other dust absorption pipe 4 with external dust absorbing device, erect the track that matches with walking wheel 11 in the both sides of electric arc furnace, place two walking wheels 11 of this portable dust excluding hood on the track, when needing to remove dust, open sealing door 12, under walking wheel 11's drive, dust cage 7 covers the outer wall at the electric arc furnace, close sealing door 12 afterwards, telescopic joint 5 falls to the inside of ring channel 102 along the inner wall of dust absorption pipe 4 this moment, realize sealedly through its inside liquid, open external dust collection device this moment, the deashing operation can be carried out.

In one practical way, referring to fig. 2 and 3, the driving device 203 is electrically connected to an upper limit switch 9 and a lower limit switch 10, the upper limit switch 9 is disposed at the bottom of the dust suction pipe 4, and the lower limit switch 10 is disposed at the top of the ring 101.

It can be understood that the upper limit switch 9 is used for stopping the operation of the driving structure 203 when the telescopic joint 5 retracts to the designated position inside the dust suction pipe 4, and the lower limit switch 10 is used for stopping the operation of the driving structure 203 after the telescopic joint 5 is inserted into the annular groove 102, wherein the specific types of the upper limit switch 9 and the lower limit switch 10 are not limited, and the use requirement is met.

Further, the actuating assembly 3 comprises a telescopic rod 301 and a bracket 302; both ends of telescopic link 301 all rotate and are connected with support 302, and support 302 plays the effect of being connected to telescopic link 301 and closed door 12 and dust cage 7, and wherein telescopic link 301 can be linear motion's such as electric putter, hydraulic stem device, and specific type and model do not all do the injecing, two support 302 respectively with dust cage 7 and closed door 12 fixed connection.

It can be understood that the bracket 302 is used for connecting the retractable rod 301, the closing door 12 and the dust hood 7, wherein the retractable rod 301 can be a linear motion device such as an electric push rod or a hydraulic rod, and the specific type and model are not limited.

Furthermore, a sealing sleeve 6 is arranged between the telescopic joint 5 and the dust suction pipe 4.

It is worth mentioning that the sealing sleeve 6 acts as a seal for the telescopic joint 5 and the suction pipe 4, wherein the sealing sleeve 6 may be made of rubber.

Specifically, on the basis of the above embodiment, whether the driving device 203 is operated or not can be limited by the upper limit switch 9 and the lower limit switch 10, that is, the movable range of the telescopic joint 5 is limited, and the closing door 12 can be opened and closed by the telescopic rod 301.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a portable dust excluding hood, includes dust absorption pipe (4), its characterized in that: the dust collection device is characterized in that an expansion joint (5) is movably connected inside the dust collection pipe (4), the bottom of the expansion joint (5) is communicated with a dust collection cover (7) through a sealing piece (1), walking wheels (11) are arranged on two sides of the outer wall of the dust collection cover (7), a sealing door (12) is arranged on the front face of the dust collection cover (7), and a sealing rubber strip (8) and an execution assembly (3) are arranged on the sealing door (12);

the seal (1) comprises an annular ring (101) and an annular groove (102);

the ring (101) is arranged at the top of the dust collection cover (7), and the top of the ring (101) is provided with an annular groove (102) corresponding to the telescopic joint (5).

2. A mobile dust excluding hood as claimed in claim 1, wherein: the telescopic joint (5) is driven by the driving component (2);

the drive assembly (2) comprises a gear (201), a tooth (202) and a drive device (203);

gear (201) rotate to be connected in the inside of dust absorption pipe (4), gear (201) pass through tooth (202) and telescopic joint (5) meshing and link to each other, drive arrangement (203) of rigid coupling in dust absorption pipe (4) outer wall are installed in gear (201).

3. A mobile dust excluding hood as claimed in claim 2, wherein: the driving device (203) is electrically connected with an upper limit switch (9) and a lower limit switch (10), the upper limit switch (9) is arranged at the bottom of the dust suction pipe (4), and the lower limit switch (10) is arranged at the top of the circular ring (101).

4. A mobile dust excluding hood as claimed in claim 1, wherein: the executing assembly (3) comprises a telescopic rod (301) and a bracket (302);

both ends of the telescopic rod (301) are rotatably connected with brackets (302), and the two brackets (302) are respectively and fixedly connected with the dust hood (7) and the closed door (12).

5. A mobile dust excluding hood as claimed in claim 1, wherein: a sealing sleeve (6) is arranged between the telescopic joint (5) and the dust suction pipe (4).