CN217358099U

CN217358099U - Exhaust pipeline of hot blast stove

Info

Publication number: CN217358099U
Application number: CN202220193857.XU
Authority: CN
Inventors: 许水吉
Original assignee: Liaoning North Gangdu Metallurgical Engineering Technology Co ltd
Current assignee: Liaoning North Gangdu Metallurgical Engineering Technology Co ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-09-02
Anticipated expiration: 2032-01-24

Abstract

The utility model relates to a hot-blast furnace technical field specifically is an exhaust duct of hot-blast furnace, including a pipe body, the intermediate position department of body installs and handles the case, and handles the intermediate position department of incasement portion and install the coarse strainer, handle one side of incasement portion and install thin filter screen, and the intermediate position department rotation of thin filter screen and coarse strainer is connected with the bull stick, the outer wall of body is provided with the insulation cover, and one side of body bottom is provided with heat transfer structure. This exhaust duct of hot-blast furnace filters impurities such as dust through coarse strainer and thin filter screen and keeps apart, and waste gas drives the impeller simultaneously and makes the scraper blade scrape the dust of coarse strainer and thin filter screen one side off, avoids coarse strainer and thin filter screen to appear blockking up and influence the exhaust, and final dust falls into the inside collection of collecting box through the dust exhaust pipe, avoids the dust to pile up the influence and exhausts to it easily piles up the influence carminative problem to have solved the dust.

Description

Exhaust pipeline of hot blast stove

Technical Field

The utility model relates to a hot-blast furnace technical field specifically is an exhaust duct of hot-blast furnace.

Background

The hot blast stove is a heat power machine, gradually becomes an upgrading product of an electric heat source and a traditional steam power heat source, and a special exhaust pipeline is needed to discharge waste gas when the hot blast stove works, so that the waste gas is conveniently guided into next treatment equipment.

The exhaust duct of today generally only plays the effect of exhaust and air guide, mainly leads the waste gas and send into treatment facility or directly discharge, lacks certain processing to lead to inside dust accumulation, deposit inside the pipeline, thereby influence the normal clear of exhaust.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides an exhaust duct of hot-blast furnace possesses advantages such as certain preliminary treatment, has solved the exhaust duct dust of general hot-blast furnace and has easily piled up the carminative problem of influence.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an exhaust duct of hot-blast furnace, includes the body, the intermediate position department of body installs and handles the case, and handles the inside intermediate position department of incasement and install the coarse strainer, handle one side of incasement portion and install thin filter screen, and the intermediate position department of thin filter screen and coarse strainer rotates and is connected with the bull stick.

The outer wall of body is provided with the insulation cover, and one side of body bottom is provided with heat transfer structure.

Further, the baffle is evenly installed to the upper end and the lower extreme of the inside one side of body, and the mutual dislocation installation between the baffle.

Further, the bottom of handling the case is installed the collecting box, and the dust exhaust pipe that runs through and handle the bottom of the case is all installed to the both sides on collecting box top, the dust exhaust pipe is located one side of coarse strainer and fine filter screen respectively.

Further, handle the inside opposite side of incasement portion and install and gather the aerofoil, and gather the upper end and the lower extreme of aerofoil one side and all seted up the through-hole, the height of through-hole and the blade parallel and level of impeller.

Further, the heat transfer structure includes the water tank, the water tank is installed in one side of body bottom, and one side on water tank top installs the inlet tube that runs through the body, the annular tube is installed on the top of inlet tube, and the annular tube bottom is kept away from the one end of inlet tube and is installed the drain pipe that runs through the water tank.

Further, the water pump is installed to the one end of the inside bottom of water tank, and the input of water pump installs the drinking-water pipe, the connecting pipe that links to each other with the inlet tube is installed to the output of water pump.

Further, the impeller is installed to the one end of bull stick outer wall, and the top and the bottom of impeller outer wall both sides all install the scraper blade, one side of scraper blade all pastes with coarse strainer and fine filter screen together.

Compared with the prior art, the technical scheme of the application has the following beneficial effects:

1. this exhaust duct of hot-blast furnace, through being provided with gather the aerofoil, the through-hole, the coarse strainer, thin filter screen, the impeller, the scraper blade, dust exhaust pipe and collecting box, waste gas blows off through the through-hole under the blocking of gathering the aerofoil, filter the isolation with impurity such as dust through coarse strainer and thin filter screen, waste gas drives the impeller simultaneously and makes the scraper blade scrape the dust of coarse strainer and thin filter screen one side, avoid coarse strainer and thin filter screen to appear blockking up and influence the exhaust, final dust falls into the inside collection of collecting box through dust exhaust pipe, avoid the dust to pile up the influence and exhaust, thereby it easily piles up the carminative problem of influence to have solved the dust.

2. This exhaust duct of hot-blast furnace, through being provided with insulation cover, baffle, annular pipe, drain pipe and water tank, keep warm waste gas through the insulation cover, avoid steam to spill too much, through slowing down through the baffle for waste gas abundant with the inside cold water heat transfer of annular pipe, the water discharge after finally will exchanging the heat through the drain pipe is gone into the inside collection of water tank, realizes the thermal utilization of waste gas, thereby has solved the great problem of waste gas calorific loss.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic diagram of a side view of the fine filter screen of the present invention;

fig. 3 is a schematic front view of the present invention;

FIG. 4 is a schematic side view of the cross-sectional structure of the tube body of the present invention;

fig. 5 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.

In the figure: 1. a pipe body; 2. a treatment box; 3. an impeller; 4. a collection box; 5. a dust exhaust pipe; 6. a heat exchange structure; 601. a water tank; 602. a drain pipe; 603. an annular tube; 604. a water inlet pipe; 7. a connecting pipe; 8. a water pump; 9. a water pumping pipe; 10. a baffle plate; 11. a thermal insulation sleeve; 12. coarse filtration; 13. a through hole; 14. a wind-gathering plate; 15. a fine filter screen; 16. a rotating rod; 17. and a scraper.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the exhaust duct of the hot blast stove of the present embodiment includes a pipe body 1, a processing box 2 is installed at a middle position of the pipe body 1, a coarse screen 12 is installed at a middle position inside the processing box 2, a fine screen 15 is installed at one side inside the processing box 2, and a rotating rod 16 is rotatably connected at a middle position between the fine screen 15 and the coarse screen 12.

The outer wall of body 1 is provided with insulation support 11, and one side of body 1 bottom is provided with heat transfer structure 6.

Referring to fig. 1 and 4, in the embodiment, baffles 10 are uniformly installed at the upper end and the lower end of one side inside the pipe body 1, and the baffles 10 are installed in a staggered manner.

It should be noted that the speed of the exhaust gas is reduced under the action of the baffle 10, so that the exhaust gas can fully complete the heat exchange operation.

Referring to fig. 1 and 3, in the present embodiment, a collecting box 4 is installed at the bottom end of a processing box 2, and dust exhaust pipes 5 penetrating the bottom end of the processing box 2 are installed at both sides of the top end of the collecting box 4, and the dust exhaust pipes 5 are respectively located at one side of a coarse filter 12 and one side of a fine filter 15.

It should be noted that the dust falls into the collecting box 4 through the dust exhaust pipe 5 for collection, so as to avoid the dust accumulation from affecting the exhaust efficiency.

Referring to fig. 1, in the present embodiment, an air collecting plate 14 is installed at the other side inside the treatment tank 2, and through holes 13 are respectively formed at the upper end and the lower end of one side of the air collecting plate 14, and the height of the through holes 13 is flush with the blades of the impeller 3.

It should be noted that the exhaust gas is blocked by the wind-collecting plate 14, so that the exhaust gas is blown out through the through hole 13 and acts on the impeller 3, thereby facilitating to drive the impeller 3 to rotate.

Referring to fig. 1 and 3, in the present embodiment, the heat exchange structure 6 includes a water tank 601, the water tank 601 is installed at one side of the bottom end of the pipe body 1, a water inlet pipe 604 penetrating through the pipe body 1 is installed at one side of the top end of the water tank 601, a circular pipe 603 is installed at the top end of the water inlet pipe 604, and a water outlet pipe 602 penetrating through the water tank 601 is installed at one end of the bottom end of the circular pipe 603 far away from the water inlet pipe 604.

It should be noted that cold water enters the interior of the annular pipe 603 through the water inlet pipe 604, absorbs heat in the exhaust gas, and finally is discharged into the interior of the water tank 601 through the water discharge pipe 602, so as to realize good circulation heat exchange.

Referring to fig. 1 and 3, in this embodiment, a water pump 8 is installed at one end of the bottom end inside the water tank 601, a water pumping pipe 9 is installed at an input end of the water pump 8, and a connecting pipe 7 connected to the water inlet pipe 604 is installed at an output end of the water pump 8.

It should be noted that the water pump 8 works in cooperation with the water pumping pipe 9, the connecting pipe 7 and the water inlet pipe 604 to pump cold water into the annular pipe 603, so as to achieve good heat exchange.

Referring to fig. 1 and 5, in the present embodiment, an impeller 3 is installed at one end of the outer wall of a rotating rod 16, scrapers 17 are installed at the top end and the bottom end of both sides of the outer wall of the impeller 3, and one side of each scraper 17 is aligned with a coarse filter screen 12 and a fine filter screen 15.

It should be noted that, the water pump 8 works in cooperation with the water pumping pipe 9, the connecting pipe 7 and the water inlet pipe 604 to pump cold water into the annular pipe 603, so as to facilitate water circulation heat exchange.

It can be understood that this hot-blast furnace's exhaust duct can be with impurity filtration processing such as dust in the waste gas to corresponding collection avoids impurity such as dust to pile up, carries out good utilization with the heat in the waste gas simultaneously, avoids the waste of the energy.

The working principle of the above embodiment is as follows:

during operation, waste gas enters the treatment box 2 through the pipe body 1, is blown out through the through holes 13 under the blocking of the wind-gathering plate 14, and is filtered and isolated by impurities such as dust through the coarse filter screen 12 and the fine filter screen 15, meanwhile, the waste gas acts on the impeller 3 to drive the impeller 3 to rotate the scraper 17, so that the scraper 17 is driven to scrape off the dust on one side of the coarse filter screen 12 and the fine filter screen 15, and finally, the dust falls into the collection box 4 through the dust exhaust pipe 5 to be collected;

the treated waste gas is decelerated through the baffle 10 under the heat preservation effect of the heat preservation sleeve 11, and simultaneously, cold water is pumped into the annular pipe 603 through the water pump 8 in a working matching manner with the water pumping pipe 9, the connecting pipe 7 and the water inlet pipe 604, so that heat in the waste gas is absorbed, and finally the waste gas is discharged into the water tank 601 through the water discharge pipe 602.

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, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an exhaust duct of hot-blast furnace, includes body (1), its characterized in that: a treatment box (2) is arranged in the middle of the pipe body (1), a coarse filter screen (12) is arranged in the middle of the interior of the treatment box (2), a fine filter screen (15) is arranged on one side of the interior of the treatment box (2), and a rotating rod (16) is rotatably connected in the middle of the fine filter screen (15) and the coarse filter screen (12);

the outer wall of the pipe body (1) is provided with a heat insulation sleeve (11), and one side of the bottom end of the pipe body (1) is provided with a heat exchange structure (6).

2. The exhaust duct of a hot blast stove according to claim 1, characterized in that: baffle plates (10) are uniformly arranged at the upper end and the lower end of one side in the pipe body (1), and the baffle plates (10) are arranged in a staggered mode.

3. The exhaust duct of a hot blast stove according to claim 1, characterized in that: the bottom of handling case (2) is installed collecting box (4), and the both sides on collecting box (4) top all install row's dirt pipe (5) that run through and handle case (2) bottom, row dirt pipe (5) are located one side of coarse strainer (12) and fine filter screen (15) respectively.

4. The exhaust duct of a hot blast stove according to claim 1, characterized in that: handle the inside opposite side of case (2) and install and gather aerofoil (14), and gather the upper end and the lower extreme of aerofoil (14) one side and all seted up through-hole (13), the blade parallel and level of the height and impeller (3) of through-hole (13).

5. The exhaust duct of a hot blast stove according to claim 1, characterized in that: heat exchange structure (6) include water tank (601), one side in body (1) bottom is installed in water tank (601), and one side on water tank (601) top installs inlet tube (604) that run through body (1), toroidal tube (603) are installed on the top of inlet tube (604), and the one end that inlet tube (604) were kept away from to toroidal tube (603) bottom installs drain pipe (602) that run through water tank (601).

6. The exhaust duct of a hot blast stove according to claim 5, characterized in that: water pump (8) are installed to the one end of the inside bottom of water tank (601), and drinking-water pipe (9) are installed to the input of water pump (8), connecting pipe (7) that link to each other with inlet tube (604) are installed to the output of water pump (8).

7. The exhaust duct of a hot blast stove according to claim 1, characterized in that: impeller (3) are installed to the one end of bull stick (16) outer wall, and all install scraper blade (17) on the top of impeller (3) outer wall both sides and bottom, one side of scraper blade (17) all pastes with coarse strainer (12) and fine screen (15) neat.