CN212944565U

CN212944565U - Trapping cover for intermediate frequency furnace

Info

Publication number: CN212944565U
Application number: CN202021016189.0U
Authority: CN
Inventors: 柴相琦; 张朝辉; 赵杰; 柴扬; 潘鹏鹏; 徐智盟
Original assignee: Luoyang Lanyuan Environmental Protection Technology Co ltd
Current assignee: Luoyang Lanyuan Environmental Protection Technology Co ltd
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2021-04-13
Anticipated expiration: 2030-06-05

Abstract

A collecting cover for an intermediate frequency furnace comprises a cover body, a fixing ring and a smoke guide plate; the shielding body is in a round table structure, the inner wall surface of the shielding body is provided with a fixing ring, the top of the fixing ring is correspondingly paved with a blocking net, and the blocking net and the fixing ring are correspondingly connected through a plurality of bolts; the side support body of the cover body is provided with a purging device used for blowing air to the blocking net, the edge of the bottom face of the cover body is correspondingly provided with an annular smoke guide plate, and the trapping cover can effectively solve the problems of the overflow of the smoke of the intermediate frequency furnace and the splashing of sparks and oil spots.

Description

Trapping cover for intermediate frequency furnace

Technical Field

The utility model belongs to the technical field of the flue gas entrapment technique and specifically relates to a entrapment cover for intermediate frequency furnace is related to.

Background

The method is well known to be quite common in the casting industry and the aluminum smelting industry, but smoke dust discharged by the intermediate frequency furnace pollutes the environment, and the temperature of the smoke gas discharged by the intermediate frequency furnace is higher, so that high-temperature smoke gas is generally filtered and removed by adopting bag-type dust removal, but a smoke inlet pipe of the bag-type dust remover is only arranged above a smoke outlet of the intermediate frequency furnace and cannot be directly communicated with the smoke outlet of the intermediate frequency furnace, or is covered on the outer side of the intermediate frequency furnace, so that some smoke gas overflows between the bag-type dust remover and the intermediate frequency furnace; the traditional method for solving the problem of smoke overflow of the intermediate frequency furnace is that an umbrella-shaped collecting cover is arranged at a smoke outlet of the intermediate frequency furnace, and a smoke inlet pipe of a bag type dust collector is covered on the outer side of the collecting cover, so that the problem of smoke overflow is solved; therefore, in summary, a collecting cover capable of effectively solving the problems of the intermediate frequency furnace smoke overflow and the splashing of sparks and oil spots is needed in the market at present.

Disclosure of Invention

In order to overcome the defects in the background art, the utility model discloses a trapping cover for an intermediate frequency furnace.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a collecting cover for an intermediate frequency furnace comprises a cover body, a fixing ring and a smoke guide plate; the shielding body is in a round table structure, the inner wall surface of the shielding body is provided with a fixing ring, the top of the fixing ring is correspondingly paved with a blocking net, and the blocking net and the fixing ring are correspondingly connected through a plurality of bolts; a blowing device used for blowing air to the blocking net is arranged on the side frame body of the cover body, and an annular smoke guide plate is correspondingly arranged on the edge of the bottom surface of the cover body;

preferably, the top surface of the barrier net is provided with a corresponding criss-cross pressing frame, and the end parts of the pressing frame are respectively and correspondingly connected with the barrier net and the fixing ring through bolts;

preferably, the two purging devices are symmetrical;

preferably, the purging device comprises a purging nozzle and a pulse valve, wherein the purging nozzle is positioned below the fixing ring, the air inlet end of the purging nozzle is correspondingly connected with the air outlet end of the pulse valve, and the air inlet end of the pulse valve is correspondingly connected with the air source machine;

preferably, the corresponding included angle between the blowing nozzle and the blocking net is 5-15 degrees;

preferably, the barrier net is a metal fiber net, and the porosity of the barrier net is 50-70%;

preferably, the height of the smoke guide plate is set to be 90-120 mm.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

the utility model discloses a catching cover for an intermediate frequency furnace, which can support a blocking net through a fixing ring, and the blocking net is more firmly arranged after being connected with the fixing ring through a bolt; the smoke guide plate can be correspondingly communicated with the air outlet of the intermediate frequency furnace, namely, the height of the collecting cover is increased, so that the intermediate frequency furnace can more completely cover the collecting cover, the overflow of high-temperature smoke is effectively prevented, and the dust removal operation of air draft of the bag type dust collector is facilitated; and the blowing device can clean the separation net, thereby prolonging the service life of the separation net.

Drawings

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

fig. 2 is a schematic structural view of the barrier net.

In the figure: 1. a cover body; 2. a fixing ring; 2.1, pressing a frame; 3. a barrier net; 4. a purging device; 4.1, purging a nozzle; 4.2, a pulse valve; 4.3, an air source machine; 5. a smoke guide plate.

Detailed Description

The invention will be explained in more detail by the following examples, which disclose the invention and are intended to protect all technical improvements within the scope of the invention.

The trapping cover for the intermediate frequency furnace, which is described in conjunction with the attached drawings 1-2, comprises a cover body 1, a fixing ring 2 and a smoke guide plate 5; the dust remover is characterized in that the cover body 1 is of a circular truncated cone structure, a fixing ring 2 is arranged on the inner wall surface of the cover body 1, a blocking net 3 is correspondingly laid at the top of the fixing ring 2, sparks or oil spots splashed out of the intermediate frequency furnace can be effectively blocked through the blocking net 3, and therefore damage to a filter bag in the bag type dust remover caused by the sparks or the oil spots is prevented, particularly, the blocking net 3 is a metal fiber net, the porosity of the blocking net 3 is 50-70%, metal fibers have good ductility, high temperature resistance and corrosion resistance, therefore, the blocking efficiency of the blocking net 3 on the sparks and the oil spots is higher, the blocking net 3 is effectively cleaned through a blowing device 4, the blocking net 3 is correspondingly connected with the fixing ring 2 through a plurality of bolts, the bolts can correspondingly fix the blocking net 3 on the fixing ring 2, and therefore the position of the blocking net 3 is prevented from changing, so that the blocking net 3 can better perform blocking work;

in addition, the top surface of the barrier net 3 is provided with a pressing frame 2.1 which is correspondingly crossed, the end part of the pressing frame 2.1 is correspondingly connected with the barrier net 3 and the fixing ring 2 through bolts, and when the blowing device 4 blows the barrier net 3, the barrier net 3 is blown to be bulged, so that gaps are generated between the edges of the barrier net 3 and the fixing ring 2, and the barrier effect of the barrier net 3 is further influenced, but the pressing frame 2.1 can tightly press the barrier net 3 on the fixing ring 2, so that the barrier net 3 is prevented from bulging, and the barrier effect of the barrier net 3 is better; the side frame body of the cover body 1 is provided with a blowing device 4 used for blowing air to the separation net 3, the blowing device 4 can blow air to clean the separation net 3 and is used for cleaning impurities attached to the separation net 3, and the blown impurities can be directly absorbed and cleaned by a bag type dust collector, so that the service life of the separation net 3 is effectively prolonged, according to needs, the blowing device 4 comprises a blowing nozzle 4.1 and a pulse valve 4.2, wherein the blowing nozzle 4.1 is positioned below the fixing ring 2, the air inlet end of the blowing nozzle 4.1 is correspondingly connected with the air outlet end of the pulse valve 4.2, the air inlet end of the pulse valve 4.2 is correspondingly connected with an air source machine 4.3, the blowing nozzle 4.1 can be controlled to blow air at intervals through the pulse valve 4.2, so that the separation net 3 is blown by matching with the smoke exhaust intervals of the intermediate frequency furnace, the purpose of effectively saving resources can be achieved, particularly, the corresponding included angle between the blowing nozzle 4.1 and the separation net 3 is 5-15 degrees, the optimal included angle of the blowing nozzle 4.1 is set to be 10 degrees, and the blowing device 4 is set to be two, so that the blowing effect is better; the edge of the bottom surface of the cover body 1 is correspondingly provided with an annular smoke guide plate 5, the smoke guide plate 5 is installed at a smoke outlet of the intermediate frequency furnace, and the smoke guide plate 5 can cover the smoke outlet, so that on one hand, the overall height of the collecting cover is improved, the smoke exhaust pipe of the bag type dust collector can integrally cover the collecting cover, the smoke exhaust effect of the smoke exhaust pipe is improved, and the purpose of preventing smoke from overflowing is achieved, on the other hand, the smoke guide plate 5 can fold the smoke exhausted by the intermediate frequency furnace to a certain degree, so that the purpose of preventing smoke from overflowing can be achieved, especially, the height of the smoke guide plate 5 is set to be 90-120mm, and the optimal height of the smoke guide plate 5 is set to be 100 mm.

The part of the utility model not detailed is prior art.

Claims

1. A collecting cover for an intermediate frequency furnace is characterized in that: comprises a cover body (1), a fixing ring (2), a blocking net (3), a blowing device (4) and a smoke guide plate (5); the shielding cover body (1) is in a circular truncated cone structure, a fixing ring (2) is arranged on the inner wall surface of the shielding cover body (1), a blocking net (3) is correspondingly paved on the top of the fixing ring (2), and the blocking net (3) is correspondingly connected with the fixing ring (2) through a plurality of bolts; the side frame body of the cover body (1) is provided with a blowing device (4) used for blowing air to the barrier net (3), and the edge of the bottom surface of the cover body (1) is correspondingly provided with an annular smoke guide plate (5).

2. The capture hood for an intermediate frequency furnace as set forth in claim 1, wherein: the top surface of the barrier net (3) is provided with a corresponding criss-cross pressing frame (2.1), and the end parts of the pressing frame (2.1) are correspondingly connected with the barrier net (3) and the fixing ring (2) through bolts.

3. The capture hood for an intermediate frequency furnace as set forth in claim 1, wherein: the two blowing devices (4) are symmetrical.

4. The capture hood for an intermediate frequency furnace as set forth in claim 3, wherein: the purging device (4) comprises a purging nozzle (4.1) and a pulse valve (4.2), wherein the purging nozzle (4.1) is located below the fixing ring (2), the air inlet end of the purging nozzle (4.1) is correspondingly connected with the air outlet end of the pulse valve (4.2), and the air inlet end of the pulse valve (4.2) is correspondingly connected with the air source machine (4.3).

5. The capture hood for the intermediate frequency furnace as set forth in claim 4, wherein: the corresponding included angle between the blowing nozzle (4.1) and the barrier net (3) is 5-15 degrees.

6. The capture hood for an intermediate frequency furnace as set forth in claim 1, wherein: the barrier net (3) is set to be a metal fiber net, and the porosity of the barrier net (3) is 50-70%.

7. The capture hood for an intermediate frequency furnace as set forth in claim 1, wherein: the height of the smoke guide plate (5) is set to be 90-120 mm.