CN212320434U

CN212320434U - Telescopic double-station trapping cover

Info

Publication number: CN212320434U
Application number: CN202020340214.4U
Authority: CN
Inventors: 刘雨琪
Original assignee: Wuxi Hechuang Zhongxin Environmental Engineering Technology Co ltd
Current assignee: Wuxi Hechuang Zhongxin Environmental Engineering Technology Co ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2021-01-08
Anticipated expiration: 2030-03-18

Abstract

The utility model discloses a telescopic double-station catching cover, which comprises a support frame and a metal mixer, wherein a supporting beam is arranged above the metal mixer, the end part of the supporting beam is fixed on the support frame, a track is fixed on the upper side surface of the supporting beam, and limiting blocks are fixed at the two ends of the track; the track is provided with a cover body, the bottom end of the cover body is provided with a driving wheel and a driven wheel, and the driving wheel and the driven wheel move on the track; the driving wheel is connected with a power source; the cover body is fixed with the connecting pipe, and the other end of connecting pipe is fixed with the inner tube, and the outside cover of inner tube is equipped with the sleeve pipe, and the bottom of inner tube is equipped with the gyro wheel, and the gyro wheel is at the intraductal motion of cover, and the tip that the sleeve pipe is close to the connecting pipe is equipped with the baffle, and the sleeve pipe is kept away from the fixed tuber pipe of tip fixedly connected. The utility model discloses set the entrapment cover of top to movable, the telescopic pipeline is connected at entrapment cover rear portion, forms the smoke and dust entrapment of two stations, can the entrapment add the smoke and dust of iron mouthful and taphole department, convenient to use, it is with low costs, the effect is better.

Description

Telescopic double-station trapping cover

Technical Field

The utility model relates to a smoke and dust entrapment specifically is a telescopic duplex position entrapment cover.

Background

A mixer furnace in steel smelting is used for storing molten iron which is transported from a blast furnace and is used for converter steelmaking, and is an intermediate station for storing and transporting the molten iron. When molten iron is charged into the mixer and poured into the ladle from the mixer, part of carbon in the molten iron is separated out into graphite crystal dust and iron oxide fume. The smoke and dust generated in the moment can not be collected along with the diffusion of hot air flow in a workshop, and the serious pollution is caused to the workshop and the surrounding atmospheric environment by the smoke and dust of the mixer furnace. The workshop production and operation post environment is seriously influenced.

The pollution source mainly comes from two stations of a charging hole and a tapping hole of the mixer. Molten iron charging and molten iron discharging are operated by hoisting by a crown block at the top of the workshop. The process is different from individual steel mills, the hoisting operation of a crown block is adopted during iron charging, the operation of the trolley in the opening mode is adopted during iron tapping (in the process, because the iron tapping can enter a completely closed environment for operation, and almost no equipment is arranged at the top of a steel ladle for blocking, the design of a dust removal facility is simple, the operation is easy), and when the hoisting operation is adopted during iron tapping, because the collecting cover of an iron notch cannot be designed in a completely closed manner, the side suction air draft is usually only adopted at two sides of the iron notch ladle, the effect is poor, and the high collecting rate cannot be achieved. Particularly, when the tap hole is empty and is cooled, the distance between the tap hole of the mixer and the ladle of the tap hole is far, the temperature difference is large, the instantaneous hot lifting smoke dust is huge, the rising rate is high, and the set trapping rate cannot be realized by removing dust on two sides.

SUMMERY OF THE UTILITY MODEL

For solving the defect of above-mentioned prior art, the utility model provides a telescopic duplex position entrapment cover, the utility model discloses set the entrapment cover of top to movable, the telescopic pipeline is connected at entrapment cover rear portion, forms the smoke and dust entrapment of two stations, can the entrapment add the smoke and dust of iron mouthful and iron notch department, convenient to use, with low costs, the effect is better.

In order to achieve the technical purpose, the utility model adopts the following technical scheme: a telescopic double-station trapping cover comprises a support frame and a metal mixer, wherein a supporting beam is arranged above the metal mixer, the end part of the supporting beam is fixed on the support frame, a track is fixed on the upper side surface of the supporting beam, and limiting blocks are fixed at two ends of the track; a cover body is arranged on the track, a driving wheel and a driven wheel are arranged at the bottom end of the cover body, and the driving wheel and the driven wheel move on the track; the driving wheel is connected with a power source;

the connecting pipe is fixed on the cover body, the inner pipe is fixed at the other end of the connecting pipe, a sleeve is sleeved on the outer side of the inner pipe, a roller is arranged at the bottom of the inner pipe, the roller moves in the sleeve, the sleeve is close to the end of the connecting pipe and is provided with a baffle, and the sleeve is far away from a fixed air pipe fixedly connected with the end of the connecting pipe.

Furthermore, a rotating plate is fixed on the metal mixer.

Furthermore, a bearing frame is fixed on one side of the supporting frame, and the bottom of the sleeve is fixed on the bearing frame through a connecting block.

Furthermore, a diversion frame is arranged on one side of a taphole of the mixer furnace, and the upper end of the diversion frame is fixedly connected with the supporting beam.

To sum up, the utility model discloses following technological effect has been gained:

1. the utility model is provided with a movable cover body above the mixer furnace, which can move to the position above the hot metal charging hole or the position above the tap hole, and can use one cover body to collect the smoke dust of the hot metal charging hole or the tap hole;

2. the utility model arranges the telescopic sleeve and the inner pipe at the rear end of the cover body, can be matched with the movable cover body, can automatically extend and retract, and is convenient to use;

3. the utility model discloses set up the baffle at sleeve pipe tip, adopt labyrinth seal, reduce the volume of leaking wind.

Drawings

FIG. 1 is a schematic view of a charging state;

FIG. 2 is a schematic view of the housing of FIG. 1 mounted thereon;

FIG. 3 is a schematic drawing of a tapping condition;

FIG. 4 is a schematic view of the enclosure movement of FIG. 3;

FIG. 5 is a schematic view of the inner tube and sleeve installation;

in the figure, 1, a mixer furnace, 2, a hot metal charging port, 3, a tap hole, 4, a support frame, 5, a rotating plate, 6, a supporting beam, 7, a track, 8, a limiting block, 9, a cover body, 901, a driving wheel, 902, a driven wheel, 10, a connecting pipe, 11, a sleeve, 12, an inner pipe, 13, a roller, 14, a fixed air pipe, 15, a power source, 16, a bearing frame, 17, a connecting block, 18, a flow guide frame, 19, a hot metal charging port big bag, 20, a tap hole big bag, 21, an upper cover, 22, a lifting appliance, 23 and a baffle.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

as shown in fig. 1, the telescopic double-station collecting hood comprises a supporting frame 4 and a mixer 1, specifically, a rotary plate 5 is fixed on the mixer 1, the rotary plate 5 is hinged on a fixing device (not shown) arranged additionally, and the mixer 1 can rotate around a hinge point under the operation of a crown block to discharge iron.

As shown in fig. 1, a support beam 6 is arranged above the mixer furnace 1, the end part of the support beam 6 is fixed on a support frame 4, as shown in fig. 2, the installation schematic diagram of the catching hood in fig. 1 is shown, in the figure, a rail 7 is fixed on the upper side surface of the support beam 6, and a limiting block 8 is fixed at the two ends of the rail 7; a cover body 9 is arranged on the track 7, a driving wheel 901 and a driven wheel 902 are arranged at the bottom end of the cover body 9, and the driving wheel 901 and the driven wheel 902 move on the track 7; the driving wheel 901 is connected with a power source 15. In fig. 2, the cover 9 is an initial position, that is, a position for collecting smoke dust during iron charging, and at this time, the driving wheel 901 is located at the position of the limiting block 8 on the right side. Furthermore, the number of the support beams 6 is at least two, and the smoke suction port at the lower side of the cover body 9 is positioned between the support beams, so that smoke dust can be conveniently collected.

As shown in fig. 2, a connecting pipe 10 is fixed on the cover 9, an inner pipe 12 is fixed at the other end of the connecting pipe 10, a sleeve 11 is sleeved outside the inner pipe 12, a roller 13 is arranged at the bottom of the inner pipe 12, the roller 13 moves in the sleeve 11 to drive the inner pipe 12 to move relative to the sleeve 11, and a baffle 23 (shown in fig. 5) is arranged at the end of the sleeve 11 close to the connecting pipe 10, so that most of smoke can be blocked to avoid large-area leakage of smoke. The end of the sleeve 11 far from the connecting pipe 10 is fixedly connected with a fixed air pipe 14, further, one side of the supporting frame 4 is fixed with a bearing frame 16, the bottom of the sleeve 11 is fixed on the bearing frame 16 through a connecting block 17, and the fixed air pipe 14 is connected to a main exhaust air pipe. Fig. 2 shows the inner tube 12 in a retracted state when the cover 9 is in the initial position, for trapping fumes at the tap hole 2.

As shown in fig. 3, a diversion frame 18 is arranged on one side of the taphole 3 of the mixer 1, and the upper end of the diversion frame 18 is fixedly connected with the support beam 6.

As shown in fig. 3, which is a state during tapping, in the drawing, the mixer 1 is tilted to tap iron after a crown block (not shown) is suspended, and as shown in fig. 4, which is a partial schematic view of fig. 3, during tapping, the power source 15 drives the driving wheel 901 to move to drive the cover 9 to move leftward, and when the power source 15 reaches the left stopper 8, the power source 15 stops moving, the cover 9 stops, and at this time, the smoke suction port of the cover 9 is located above the side of the tap hole 3.

The working principle is as follows:

the iron charging state is as shown in figure 1 and figure 2: the crown block hangs a charging hole big ladle 19 for charging iron, the power source 15 does not work, the cover body 9 is positioned at the right side of the track 7, and the smoke suction port of the cover body 9 is positioned above the charging hole 2 and is used for collecting smoke dust at the charging hole 2; after the iron adding is finished, the upper cover 21 is fixed, and the iron adding port is sealed;

as shown in fig. 3 and 4, the tapping state is as follows: the mixer 1 is inclined to tap iron under the action of a crown block, a lifting appliance 22 of the crown block is positioned at the side edge of the tap hole 3 and extends up and down, and the smoke dust at the tap hole 3 rises along the flow guide frame 18; the power source 15 acts to drive the cover body 9 to the left side of the track 7, at the moment, the smoke suction port of the cover body 9 is positioned at the upper side edge of the taphole 3 and is close to the lifting appliance 22 as much as possible under the condition of not influencing the lifting appliance 22, so that smoke rising along the flow guide frame 18 can enter the cover body 9; at this time, the cover body 9 moves leftwards, the cover body 9 drives the inner pipe 12 to move leftwards through the connecting pipe 10, so that the inner pipe 12 moves leftwards under the action of the roller 13 and moves relative to the sleeve 11, the extending movement of the inner pipe 12 is realized, and the cover body 9 and the fixed air pipe 14 can be smoothly connected.

Compared with the prior art, the utility model can meet the requirement of the gathering rate by the gathering cover (namely the cover body 9) of the existing mobile iron mixing furnace during iron adding, and does not influence the operation and the maintenance. When the travelling crane hangs the big ladle with the iron charging port to carry out the turnover iron charging operation, the ladle port just forms a closed space with the prior cover body, and the trapping rate can reach 100 percent under the action of the negative pressure of the tail fixed air pipe 14.

During tapping, as part of steel works adopt a ladle tapping mode, the top cannot be provided with the trapping cover device, and a large amount of smoke is diffused to the top to cause trapping difficulty. The event the utility model discloses the utilization is converted indisputable and the tap hole operation is not work simultaneously, sets up the utility model discloses a telescopic entrapment cover of duplex position dual-purpose, when the operation of falling iron of blast furnace mixer is accepted to tap hole bale 20, the cover body 9 at top advances to the tap hole bale directly over through power supply 15, under the condition that does not influence the hoist, is close to the tap hole top as far as possible, can induce the flue gas of accepting the entrapment bale like this.

The utility model relates to a when the cover body 9, the afterbody designs one section telescopic sleeve pipe 11 according to actual length simultaneously, and afterbody sleeve pipe 11 adopts gyro wheel 13 to follow inner tube 12 and removes, and sleeve pipe 11 is fixed motionless, is connected with fixed tuber pipe 14. The sleeve 11 and the inner tube 12 adopt labyrinth seal, and a baffle plate 23 is arranged to reduce air leakage.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all the modifications and equivalents of the technical spirit of the present invention to any simple modifications of the above embodiments are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a telescopic duplex position entrapment cover, includes support frame (4), torpedo furnace (1), the top of torpedo furnace (1) is equipped with strutbeam (6), the tip of strutbeam (6) is fixed on support frame (4), its characterized in that:

a track (7) is fixed on the upper side surface of the supporting beam (6), and limiting blocks (8) are fixed at two ends of the track (7); a cover body (9) is arranged on the track (7), a driving wheel (901) and a driven wheel (902) are arranged at the bottom end of the cover body (9), and the driving wheel (901) and the driven wheel (902) move on the track (7); the driving wheel (901) is connected with a power source (15);

be fixed with connecting pipe (10) on the cover body (9), the other end of connecting pipe (10) is fixed with inner tube (12), the outside cover of inner tube (12) is equipped with sleeve pipe (11), the bottom of inner tube (12) is equipped with gyro wheel (13), gyro wheel (13) are in sleeve pipe (11) internal motion, sleeve pipe (11) are close to the tip of connecting pipe (10) is equipped with baffle (23), sleeve pipe (11) are kept away from the fixed tuber pipe (14) of tip fixedly connected with of connecting pipe (10).

2. The telescopic double-station trapping cover according to claim 1, characterized in that: the mixer furnace (1) is fixed with a rotating plate (5).

3. The telescopic double-station trapping cover according to claim 1, characterized in that: a bearing frame (16) is fixed on one side of the support frame (4), and the bottom of the sleeve (11) is fixed on the bearing frame (16) through a connecting block (17).

4. The telescopic double-station trapping cover according to claim 1, characterized in that: a diversion frame (18) is arranged on one side of the tapping hole (3) of the mixer (1), and the upper end of the diversion frame (18) is fixedly connected with the supporting beam (6).