CN217698692U

CN217698692U - SCR denitration device for flue gas of drying furnace

Info

Publication number: CN217698692U
Application number: CN202222024458.3U
Authority: CN
Inventors: 张相明; 王希成
Original assignee: Zibo Huijie Chemical Co ltd
Current assignee: Zibo Huijie Chemical Co ltd
Priority date: 2022-08-02
Filing date: 2022-08-02
Publication date: 2022-11-01
Anticipated expiration: 2032-08-02

Abstract

The utility model discloses a SCR denitrification facility for drying furnace flue gas, including drying furnace fire grate tobacco pipe, flue and SCR reactor, be equipped with the connecting pipe between drying furnace fire grate tobacco pipe and the flue, the inside of connecting pipe is provided with spacing subassembly, spacing subassembly includes spacing ring and second sealing washer, the spacing ring welds on the one end inner wall of connecting pipe, ring groove has been seted up to the outside inside of spacing ring, ring groove and the bottom looks block of second sealing washer, the top surface of second sealing washer is inconsistent with one side outside lateral wall of filter screen, the opposite side outside lateral wall of filter screen is inconsistent with the bottom surface of pressing a section of thick bamboo, the both ends of connecting pipe are connected with drying furnace fire grate tobacco pipe and flue through mounting flange respectively, through set up the connecting pipe between drying furnace fire grate tobacco pipe and flue, the inside spacing subassembly and the pressure section of thick bamboo that is provided with of one end of connecting pipe, be convenient for carry out stable installation and dismantle abluent connection of leakproofness to the filter screen.

Description

SCR denitration device for flue gas of drying furnace

Technical Field

The utility model relates to a flue gas denitration technical field specifically is a SCR denitrification facility for drying furnace flue gas.

Background

The drying furnace is in the use, can discharge the flue gas that has harmful substance along with it, one of the flue gas denitration technique that current SCR reactor denitrification facility adopted more commonly at present, often be accompanied with a large amount of dusts in the exhaust flue gas, the dust easily causes the wearing and tearing of catalyst in case gets into the inside of SCR reactor, block up or even be poisoned, the reactivity and the life of direct influence catalyst, increase the running cost of SCR system, generally set up the filter screen in the inside of flue and filter the dust in the flue, prevent that the dust from getting into the inside of device, in order to prevent that the dust from causing the jam to the filter screen, it dismantles the washing to the filter screen frequently to need, current installation and the dismantlement process to the filter screen are more loaded down with trivial details not convenient enough, influence the ann of filter screen and tear down work efficiency down.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a SCR denitrification facility for drying furnace flue gas, through set up the connecting pipe between drying furnace fire smoke pipe and flue, the one end of connecting pipe is inside to be provided with spacing subassembly and to press a section of thick bamboo, is convenient for carry out stable installation and dismantle the connection of accomplishing the leakproofness when abluent to the filter screen, improves to the ann of filter screen and tears the leakproofness between efficiency and the pipeline open and connect to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides a SCR denitrification facility for drying furnace flue gas includes drying furnace fire grate flue pipe, flue and SCR reactor, be equipped with the connecting pipe between drying furnace fire grate flue pipe and the flue, the inside of connecting pipe is provided with spacing subassembly, spacing subassembly includes spacing ring and second sealing washer, the spacing ring welds on the one end inner wall of connecting pipe, ring groove has been seted up to the outside inside of spacing ring, ring groove and the bottom looks block of second sealing washer, the top surface of second sealing washer is inconsistent with the one side outside lateral wall of filter screen, the opposite side outside lateral wall of filter screen is inconsistent with the bottom surface of pressing the section of thick bamboo, the top both sides of pressing the section of thick bamboo respectively with the lateral wall of drying furnace fire grate flue pipe and the one end lateral wall of connecting pipe inconsistent, the both ends of connecting pipe are connected with drying furnace fire grate flue pipe and flue through mounting flange respectively.

Preferably, a first sealing ring is pasted at the top end of the pressing cylinder and is abutted against the side wall of one end of the connecting pipe.

Preferably, the top welding of pressing a section of thick bamboo has the stopper, the lateral wall and the spacing groove sliding connection of stopper, the spacing groove is seted up inside the one end top surface of connecting pipe.

Preferably, a dust collecting hopper is welded on the bottom surface of one end of the connecting pipe, and a control valve is arranged at the bottom end of the dust collecting hopper.

Preferably, the interior of the dust collecting hopper is communicated with a charging chute which is arranged inside the bottom end of one end of the connecting pipe.

Preferably, a cutting groove is formed in one side of the bottom end of the pressing cylinder, and the cutting groove is communicated with the charging chute and the inside of the connecting pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a SCR denitrification facility for drying furnace flue gas, through set up the connecting pipe between drying furnace smoke tube and flue, the inside spacing subassembly and the pressure section of thick bamboo that is provided with of one end of connecting pipe, when the filter screen slides to the second sealing washer outside the spacing ring from the one end inside of connecting pipe, insert the bottom of pressing the section of thick bamboo to the one end inside of connecting pipe, make the bottom surface of pressing the section of thick bamboo inconsistent with the opposite side outside lateral wall of filter screen, the top lateral wall of pressing the section of thick bamboo offsets with the one end lateral wall of drying furnace smoke tube and connecting pipe respectively, then fasten the connection through the bolt with the mounting flange of drying furnace smoke tube and connecting pipe one end, can carry out stable installation fixed and drying furnace smoke tube and the connection of connecting pipe one end leakproofness to the filter screen, make installation and the dismantlement to the filter screen more convenient, be convenient to dismantle connecting pipe and filter screen, improve the ann of filter screen and tear efficiency;

the dust collecting hopper is arranged at the bottom end of the other side of the filter screen, and the control valve is arranged at the bottom end of the dust collecting hopper, so that dust can be automatically discharged and processed conveniently.

Drawings

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

FIG. 2 is a side view, sectional structural schematic diagram of the connecting pipe of the present invention;

FIG. 3 is an enlarged schematic view of the structure at the position A of the present invention;

fig. 4 is an enlarged schematic structural view of the position B of the present invention;

fig. 5 is a schematic view of the structure of the pressing cylinder of the present invention.

Reference numbers in the figures: 1. drying the smoke exhaust pipe; 2. a flue; 3. an SCR reactor; 4. a connecting pipe; 5. a dust collecting hopper; 6. a control valve; 7. pressing the cylinder; 8. a first seal ring; 9. a limiting block; 10. a filter screen; 11. A limiting ring; 12. a second seal ring; 13. grooving; 14. a charging chute; 15. a limiting groove.

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 efforts all belong to the protection scope of the present invention.

The utility model provides a SCR denitrification facility for drying furnace flue gas as shown in figures 1-5, which comprises a drying furnace flue pipe 1, a flue 2 and an SCR reactor 3, a connecting pipe 4 is arranged between the drying furnace flue pipe 1 and the flue 2, one end of the flue 2 is connected with the other end of the connecting pipe 4 through a mounting flange, the other end of the flue 2 is connected with a flue inlet of the SCR reactor 3 through a mounting flange, a limiting component is arranged in the connecting pipe 4, the limiting component comprises a limiting ring 11 and a second sealing ring 12, the limiting ring 11 is welded on the inner wall of one end of the connecting pipe 4, an annular clamping groove is arranged in the outer side of the limiting ring 11, the annular clamping groove is clamped with the bottom end of the second sealing ring 12, when the filter screen 10 is dismounted and mounted for many times, the second sealing ring 12 can be deformed, the stable sealing of connection is caused, by arranging the annular clamping groove in the outer side of the limiting ring 11, the installation and the replacement of the second sealing ring 12 are convenient, the top surface of the second sealing ring 12 is abutted against the outer side wall of one side of the filter screen 10, the outer side wall of the other side of the filter screen 10 is abutted against the bottom surface of the pressure cylinder 7, the outer wall of the bottom end of the pressure cylinder 7 is slidably connected with the inner wall of the connecting pipe 4, the outer wall of the outer frame of the filter screen 10 is slidably connected with the inner wall of the connecting pipe 4, the limiting component and the pressure cylinder 7 are arranged inside one end of the connecting pipe 4, when the connecting pipe 4 and the filter screen 10 are installed, the filter screen 10 is firstly slid to the second sealing ring 12 outside the limiting ring 11 from the inside of one end of the connecting pipe 4, then the limiting block 9 welded at the top end of the pressure cylinder 7 is aligned to the limiting groove 15, the bottom end of the pressure cylinder 7 is inserted into one end of the connecting pipe 4, so that the bottom surface of the pressure cylinder 7 is abutted against the outer side wall of the other side of the filter screen 10, the side wall of the top end of the pressing cylinder 7 is respectively abutted against the side walls of one ends of the drying furnace smoke exhaust pipe 1 and the connecting pipe 4, two ends of the connecting pipe 4 are respectively connected with the drying furnace smoke exhaust pipe 1 and the flue 2 through mounting flanges, a first sealing ring 8 is pasted at the top end of the pressing cylinder 7, the first sealing ring 8 is abutted against the side wall of one end of the connecting pipe 4, a top limit block 9 of the pressing cylinder 7 is inserted into the limiting groove 15, the first sealing ring 8 is abutted against the side wall of one end of the connecting pipe 4, then the mounting flanges of the drying furnace smoke exhaust pipe 1 and one end of the connecting pipe 4 are fastened and connected through bolts, the filter screen 10 can be stably installed and fixed, the mounting flanges are connected through bolts at the other end of the connecting pipe 4, the first sealing ring 8 is pasted on the side wall of the other end of the connecting pipe 4, the sealing performance between the two pipes is enhanced, the installation and the disassembly of the filter screen 10 are more convenient, the connecting pipe 4 and the filter screen 10 are convenient, and the disassembly efficiency of the filter screen 10 is improved;

the top end of the pressing cylinder 7 is welded with a limiting block 9, the side wall of the limiting block 9 is connected with a limiting groove 15 in a sliding mode, the limiting groove 15 is formed in the top face of one end of the connecting pipe 4, the pressing cylinder 7 can be accurately installed by arranging the limiting block 9 and the limiting groove 15, the cutting groove 13 in one side of the bottom end of the pressing cylinder 7 is accurately communicated with the blanking groove 14, and the effect of accurate limiting is achieved;

the welding of the one end bottom surface of connecting pipe 4 has dust hopper 5, the bottom of dust hopper 5 is equipped with control flap 6, the inside and the charging chute 14 of dust hopper 5 are linked together, charging chute 14 is seted up inside the one end bottom of connecting pipe 4, and charging chute 14 sets up in the opposite side bottom of filter screen 10, grooving 13 has been seted up to bottom one side of pressure section of thick bamboo 7, grooving 13 is linked together with charging chute 14 and the inside of connecting pipe 4, through set up dust hopper 5 in the opposite side bottom of filter screen 10, when the cigarette looses from drying furnace exhaust pipe 1, through the inside filter screen 10 of connecting pipe 4, can carry out the automatic filtration to some dusts in the cigarette, prevent that the dust from entering into the inside of SCR reactor 3, the dust of filtering through filter screen 10 can fall into the inside of dust hopper 5 through grooving 13 and charging chute 14 are automatic, when certain dust is collected to the inside of dust hopper 5, open control flap 6 of dust hopper 5 bottom, can carry out automatic discharge treatment to the dust.

During the specific use, when needing to dismantle the washing to filter screen 10, directly dismantle the bolt on the mounting flange that connecting pipe 4 both ends and drying furnace exhaust pipe 1 and flue 2 are connected, can dismantle the processing to connecting pipe 4, then take out pressure section of thick bamboo 7, can take out filter screen 10 from the inside of connecting pipe 4, easy operation is convenient.

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 a SCR denitrification facility for drying furnace flue gas, includes drying furnace fire smoke pipe (1), flue (2) and SCR reactor (3), its characterized in that: the drying furnace is characterized in that a connecting pipe (4) is arranged between the drying furnace smoke exhaust pipe (1) and the flue (2), a limiting assembly is arranged inside the connecting pipe (4), the limiting assembly comprises a limiting ring (11) and a second sealing ring (12), the limiting ring (11) is welded on the inner wall of one end of the connecting pipe (4), an annular clamping groove is formed inside the outer side of the limiting ring (11), the annular clamping groove is clamped with the bottom end of the second sealing ring (12), the top surface of the second sealing ring (12) is abutted to the side wall of the outer side of one side of the filter screen (10), the side wall of the outer side of the other side of the filter screen (10) is abutted to the bottom surface of the pressing cylinder (7), the two sides of the top end of the pressing cylinder (7) are abutted to the side wall of the drying furnace smoke exhaust pipe (1) and the side wall of one end of the connecting pipe (4), and the two ends of the connecting pipe (4) are connected with the drying furnace smoke exhaust pipe (1) and the flue (2) through mounting flanges respectively.

2. The SCR denitration device for flue gas of a drying furnace according to claim 1, characterized in that: the top of pressing a section of thick bamboo (7) is pasted and is had first sealing washer (8), first sealing washer (8) are inconsistent with the one end lateral wall of connecting pipe (4).

3. The SCR denitration device for the flue gas of the drying furnace of claim 1, characterized in that: the welding of the top of pressing a section of thick bamboo (7) has stopper (9), the lateral wall and spacing groove (15) sliding connection of stopper (9), spacing groove (15) are seted up inside the one end top surface of connecting pipe (4).

4. The SCR denitration device for the flue gas of the drying furnace of claim 1, characterized in that: the bottom surface of one end of the connecting pipe (4) is welded with a dust hopper (5), and the bottom end of the dust hopper (5) is provided with a control valve (6).

5. The SCR denitration device for flue gas of a drying furnace according to claim 4, wherein: the dust collecting hopper (5) is communicated with the charging conduit (14), and the charging conduit (14) is arranged in the bottom end of one end of the connecting pipe (4).

6. The SCR denitration device for flue gas of a drying furnace according to claim 1, characterized in that: one side of the bottom end of the pressing cylinder (7) is provided with a cutting groove (13), and the cutting groove (13) is communicated with the charging chute (14) and the inside of the connecting pipe (4).