CN218794553U

CN218794553U - Spark trapping device suitable for scrap steel preheats

Info

Publication number: CN218794553U
Application number: CN202223077992.7U
Authority: CN
Inventors: 张小宁; 吴修文; 黄凯; 贾晓媛
Original assignee: Wuxi Appleton Technology Co ltd
Current assignee: Wuxi Appleton Technology Co ltd
Priority date: 2022-11-18
Filing date: 2022-11-18
Publication date: 2023-04-07
Anticipated expiration: 2032-11-18

Abstract

The utility model discloses a spark entrapment device suitable for steel scrap preheats, it is installed and is preheated on the flue gas manifold and be located the anterior segment of sack cleaner in the steel scrap, wherein, spark entrapment device includes casing, back-fire relief board and an at least grid board, has sealed cavity and its both ends and sets up air inlet and gas vent in the casing, and the bottom of casing is provided with the ash collecting bucket, and the back-fire relief board is fixed in the position that is close to the air inlet in the cavity, and back-fire relief board top-down sets up towards the air inlet slope, and the grid board sets up in the position that is close to the gas vent in the cavity. The spark trapping device suitable for scrap steel preheating is used for blocking high-temperature particles through the fire retardant plate and dropping the high-temperature particles to the ash collecting hopper, and high-temperature flue gas redirected by the fire retardant plate is discharged through the exhaust port after passing through the grating plate. The spark trapping device is simple in structure, ingenious in design and easy to realize; and high-temperature particles can be prevented from entering the bag-type dust collector, and the safety of waste steel preheating operation is ensured.

Description

Spark trapping device suitable for scrap steel preheats

Technical Field

The utility model belongs to the technical field of the scrap steel preheats, especially, relate to a spark entrapment device suitable for the scrap steel preheats.

Background

The waste steel is discarded or damaged in production and living engineering and is used as a recycled waste steel material, the waste steel is an energy-carrying resource and an environment-friendly resource, and compared with the process of directly smelting steel by using waste steel and then smelting steel by using ores, the method can save 60 percent of energy and 40 percent of water, reduce the emission of 86 percent of waste gas, 76 percent of waste water and 97 percent of waste residue, and is beneficial to clean production and waste reduction.

At present, in the recycling process of the scrap steel, the scrap steel mostly needs to be preheated, a large amount of high-temperature flue gas can be generated in the preheating process, and the high-temperature flue gas needs to be discharged after dust removal and purification. In the high-temperature flue gas dust removal process, bag-type dust removal is frequently used, particles with sparks are often mixed in the high-temperature flue gas in the actual production process, and if the particles enter the bag-type dust remover after being insufficiently cooled, the bag can be burnt, so that great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a spark entrapment device suitable for steel scrap preheats to the problem that the sack can be burnt out to the high temperature granule that produces when solving among the prior art steel scrap and preheating.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a spark entrapment device suitable for steel scrap preheats, its installs in the steel scrap and preheats on the flue gas manifold and be located the anterior segment of sack cleaner, wherein, spark entrapment device includes casing, back-fire relief board and an at least grid board, it sets up air inlet and gas vent to have sealed cavity and its both ends in the casing, the bottom of casing is provided with the ash collecting bucket, the back-fire relief board is fixed in be close to in the cavity the position of air inlet, just back-fire relief board top-down orientation the air inlet slope sets up, the grid board set up in be close to in the cavity the position of gas vent.

Furthermore, the ash collecting hopper is of a conical structure with a large upper part and a small lower part, an ash sliding pipe is installed at the bottom of the ash collecting hopper, and an ash discharging valve is installed at the bottom of the ash sliding pipe.

Furthermore, the bottom end of the fire retardant plate extends into the top end of the ash collecting hopper, so that high-temperature particles can be conveniently introduced into the ash collecting hopper.

Further say, the grid plate interval is provided with two, two the grid plate homoenergetic set up in with dismouting in the cavity.

Furthermore, a plurality of slots are formed in two side walls, perpendicular to the airflow direction, of the shell in the height direction, and the grating plates are inserted into the slots or pulled out of the slots from the top of the shell.

Furthermore, the grid plates are rod grid plates, and gaps between two adjacent grid plates are correspondingly arranged.

Furthermore, the grid plates are rod grid plates, and gaps between two adjacent grid plates are arranged in a staggered mode.

Further, the air inlet is connected with an air inlet pipe through a mounting flange, the air outlet is connected with an exhaust pipe through a mounting flange, and the whole spark trapping device is installed in a scrap steel preheating flue gas collecting pipe through the air inlet pipe and the exhaust pipe.

The beneficial effects of the utility model are that, compare with prior art spark entrapment device suitable for scrap steel preheats installs on the scrap steel preheats flue gas manifold, and the scrap steel preheats the high temperature flue gas that the in-process produced and is kept off to the ash collecting bucket behind the back fire relief plate, and the high temperature flue gas that changes direction through the fire relief plate is discharged through the gas vent after passing through the grid board again, and the grid board plays and stops the high temperature granule once more and with the dual function that the air current changes direction. The spark trapping device is simple in structure, ingenious in design and easy to realize; and high-temperature particles can be prevented from entering the bag-type dust collector, and the safety of waste steel preheating operation is ensured.

Drawings

FIG. 1 is a schematic front view of a spark collecting device suitable for preheating scrap steel according to an embodiment of the present invention;

FIG. 2 is a schematic side view of a spark catch according to an embodiment of the present invention adapted for preheating scrap;

fig. 3 is a schematic plan view of a spark collecting device suitable for preheating scrap according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are illustrated in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 3, in the embodiment, a spark collecting device suitable for preheating scrap steel includes a housing 1, a fire retardant plate 2 and two grid plates 3, the housing 1 has a sealed cavity 4, and both ends of the sealed cavity are provided with an air inlet and an air outlet, the air inlet is connected with an air inlet pipe 6 through a mounting flange 5, the air outlet is connected with an exhaust pipe 7 through the mounting flange 5, the whole spark collecting device is mounted on a scrap steel preheating flue gas collecting pipe through the air inlet pipe 6 and the exhaust pipe 7, and the mounting position of the spark collecting device is located at the front section of a bag-type dust collector. The bottom of casing 1 is provided with ash collection bucket 8, and back-fire relief plate 2 is fixed in the position that is close to the air inlet in the cavity 4, and back-fire relief plate 2 top-down sets up towards the air inlet slope, and two grating plate intervals set up in the position that is close to the gas vent in cavity 4.

The ash collection bucket 8 is of a conical structure with a large top and a small bottom, the ash sliding pipe 9 is installed at the bottom of the ash collection bucket 8, the ash discharge valve 10 is installed at the bottom of the ash sliding pipe 9, and high-temperature particles blocked by the fire retardant plates 2 and the two grating plates 3 through the ash collection bucket 8 are collected and then discharged through the ash sliding pipe 9.

Keep off high temperature granule through back-fire relief board 2 and guide to ash collecting bucket 8 in, the top setting that ash collecting bucket 8 was stretched into to the bottom of back-fire relief board 2 to guarantee that high temperature granule drops to ash collecting bucket 8 in, reduce the escape of high temperature granule.

A plurality of slots are formed in two side walls, perpendicular to the airflow direction, of the shell 1 in the height direction, the two grid plates 3 are inserted into the slots or drawn out of the slots from the top of the shell 1, and the grid plates 3 are installed in the shell 1 in a plug-in plate type structure, so that the grid plates 3 can be conveniently assembled and disassembled.

Two grid plates 3 all adopt the stick grid plate, have the space between two adjacent stick, and the space of two adjacent grid plates 3 corresponds the setting, and of course, the space of two adjacent grid plates 3 also can crisscross the setting, adopts the mode of crisscross setting, can further improve the ash blocking effect of grid plate 3 through the cooperation of two grid plates 3, can change the high temperature air current secondary to simultaneously, is favorable to reducing the temperature of flue gas.

The during operation, the high temperature flue gas that the scrap steel preheated the production gets into in the casing 1 through intake pipe 6, earlier through stopping of back-fire relief plate 2, can keep off most high temperature granule to fall to the ash collecting bucket 8 in, the high temperature flue gas changes to the speed reduction through two grid plates 3 behind back-fire relief plate 2, two grid plates 3 can stop the high temperature granule of partial escape and drop to the ash collecting bucket 8 in back, can change to the high temperature air current simultaneously, reduce the turbulent flow of casing 1 interior air current, make the high temperature air current discharge smoothly through blast pipe 7.

The above embodiments have only been illustrated the basic principle and characteristics of the present invention, the present invention is not limited by the above embodiments, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these changes and modifications all fall into the scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a spark entrapment device suitable for steel scrap preheats, its installs and just is located the anterior segment of sack cleaner on the steel scrap preheats flue gas manifold, a serial communication port, spark entrapment device includes casing, back-fire relief board and an at least grid board, it sets up air inlet and gas vent to have sealed cavity and its both ends in the casing, the bottom of casing is provided with the ash collecting bucket, the back-fire relief board is fixed in be close to in the cavity the position of air inlet, just back-fire relief board top-down orientation the air inlet slope sets up, the grid board set up in be close to in the cavity the position of gas vent.

2. The spark catching device for scrap preheating according to claim 1, wherein the ash collecting hopper is a tapered structure with a large top and a small bottom, an ash chute is installed at the bottom of the ash collecting hopper, and an ash discharging valve is installed at the bottom of the ash chute.

3. The spark arrest device for the preheating of scrap according to claim 1 wherein the bottom end of the flame retardant plate is positioned to extend into the top end of the hopper.

4. The spark catch device suitable for steel scrap preheating according to claim 1, wherein two grid plates are arranged at intervals, and both grid plates are detachably arranged in the cavity.

5. The spark catch device for scrap preheating according to claim 4, wherein the casing has a plurality of slots formed in both side walls perpendicular to the airflow direction in the height direction, and the grid plate is inserted into or withdrawn from the slots from the top of the casing.

6. The spark arrest device for scrap preheating according to claim 4, wherein the grid plates are bar grid plates, and the gaps between two adjacent grid plates are correspondingly arranged.

7. The spark arrest device for scrap preheating according to claim 4, wherein the grid plates are bar grid plates, and the gaps between two adjacent grid plates are staggered.

8. The spark trapping device suitable for scrap steel preheating according to claim 1, wherein an air inlet pipe is connected to the air inlet through a mounting flange, an exhaust pipe is connected to the exhaust port through a mounting flange, and the whole spark trapping device is mounted on a scrap steel preheating flue gas collecting pipe through the air inlet pipe and the exhaust pipe.