CN208817505U - A kind of urea pyrolysis furnace equipped with sonic soot blowing device - Google Patents
A kind of urea pyrolysis furnace equipped with sonic soot blowing device Download PDFInfo
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- CN208817505U CN208817505U CN201821331374.1U CN201821331374U CN208817505U CN 208817505 U CN208817505 U CN 208817505U CN 201821331374 U CN201821331374 U CN 201821331374U CN 208817505 U CN208817505 U CN 208817505U
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- cylinder
- acoustical generator
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- sound wave
- air accumulator
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Abstract
A kind of urea pyrolysis furnace equipped with sonic soot blowing device, including cylinder, the cylinder is cylindrical, several support brackets are fixed on the outer wall of cylinder, cylinder upper and lower ends are respectively equipped with centrum and hypocentrum, hot wind inlet is provided at the top of upper centrum, hypocentrum bottom end is provided with outlet, the upper centrum and cylinder junction are equipped with homogenizing plate, cylinder is located at the position below homogenizing plate equipped with urea liquid spray gun, it is characterized in that, the top and bottom of the cylinder are respectively equipped with the first sound wave of multiple groups conduction horn and the second sound wave of multiple groups conduction horn, the first sound wave conduction horn and the second sound wave conduction horn are separately connected narrow frequency acoustical generator and wideband acoustical generator, the narrow frequency acoustical generator and wideband acoustical generator pass through piping connection air accumulator, shut-off valve is equipped between the narrow frequency acoustical generator and air accumulator, filter, pressure switch, ball valve , metal hose and solenoid valve, be successively arranged shut-off valve, filter, pressure reducing valve, pressure switch and solenoid valve between the wideband acoustical generator and air accumulator.
Description
Technical field
The present invention relates to a kind of urea pyrolysis furnace, especially a kind of urea pyrolysis furnace equipped with sonic soot blowing device.
Background technique
Currently, reducing agent NH3 used in most SCR denitration processes is obtained using urea pyrolysis method, wherein the most key
Equipment be urea pyrolysis furnace.Lysis efficiency of the urea in pyrolysis oven is mainly by flue gas flow field, temperature field, urea in pyrolysis oven
Three principal elements of atomizing particle size and distribution field determine, wherein flue gas flow field, temperature field uniformity pyrolysis oven design
It is accounted in journey, but most important factor is that the particles size and distribution uniformity after urea atomization influences reality in operational process
Flue gas flow field, the uniformity in temperature field and the abundant rate of cracking in the operation of border, to guarantee the parameters such as atomizing particle size, angle and flow
Most preferably, urea spray gun uses two-phase flow atomised form at present, but easily blocks, and leads to the deterioration for being pyrolyzed furnace inner environment, and urea is split
Solve insufficient, urea crystals body is continuously generated, and urea crystals attachment inner wall and under the carrying of dilution wind in pyrolysis oven gradually blocks up
Plug it is abnormal to cause denitration pyrolysis system, and then denitration NOx is caused to export content at pyrolysis oven outlet conduit and spray ammonia manually operated door
It is exceeded, it has to load down needs maintenance down when serious,
Control urea quality is taken thus, reduces urea liquid compound concentration, and spray gun carries out the measures such as water flushing and carries out in fact
It tests, the problem of denitration pyrolysis system exception has very big change, but still can not thoroughly solve.
Sound wave is a kind of mechanical wave, and the sound wave in air makes air molecule generate vibration, in the air point of boundary-layer oscillation
Subband moves adjacent medium molecule vibration, and generates two kinds of effects, and can be transmitted in adjacent media one is sound makes shape in medium
At solid sound wave, another kind due to the viscous force between air molecule and adjacent media molecule, sound wave be equivalent to be applied to it is adjacent
One active force of medium, pushes and pulls surface dielectric molecule back and forth by sound wave.
Summary of the invention
The invention solves technical solution be that a kind of anti-blocking urea pyrolysis furnace equipped with sonic soot blowing device is provided.
The technical solution of the present invention is as follows:
A kind of urea pyrolysis furnace equipped with sonic soot blowing device, including cylinder, the cylinder is cylindrical, the outer wall of cylinder
On be fixed with several support brackets, cylinder upper and lower ends are respectively equipped with centrum and hypocentrum, be provided at the top of upper centrum hot wind into
Mouthful, hypocentrum bottom end is provided with outlet, and the upper centrum and cylinder junction are equipped with homogenizing plate, and cylinder is located at the position below homogenizing plate
Urea liquid spray gun is installed, which is characterized in that the top and bottom of the cylinder are respectively equipped with the conduction number of the first sound wave of multiple groups
Cylinder and the second sound wave of multiple groups conduct horn, and the first sound wave conduction horn and the second sound wave conduction horn are separately connected narrow take place frequently
Sound device and wideband acoustical generator, the narrow frequency acoustical generator and wideband acoustical generator pass through piping connection air accumulator, the narrow sound that takes place frequently
Shut-off valve, filter, pressure switch, ball valve, metal hose and solenoid valve, the wideband acoustical generator are equipped between device and air accumulator
Shut-off valve, filter, pressure reducing valve, pressure switch and solenoid valve are successively arranged between air accumulator.
Further, the first sound wave conduction horn is arranged on upper centrum, the second sound wave conduction horn setting
In the top of hypocentrum.
Further, the air accumulator connects gas source with non-return valve by shut-off valve, and the air accumulator upper end is equipped with safety
Valve.
Further, the narrow frequency acoustical generator frequency range 30-300Hz, the frequency range 20 of the wideband acoustical generator~
10000Hz。
The invention has the benefit that
The present invention carries out the urea de-plugging of pyrolysis oven using narrow frequency and the high strong sound wave of wideband Frequency Adjustable, with sound wave physical technique
Strengthen Urea Lysis rate chemistry and efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
The position Fig. 2 the utility model gas circuit schematic diagram.
Specific embodiment
Invention is further explained with specific embodiment for explanation with reference to the accompanying drawing.
A kind of urea pyrolysis furnace equipped with sonic soot blowing device, including cylinder 1, the cylinder 1 is cylindrical, cylinder 1
Several support brackets 2 are fixed on outer wall, 1 upper and lower ends of cylinder are respectively equipped with centrum 3 and hypocentrum 4, open at the top of upper centrum 3
There is hot wind inlet 5,4 bottom end of hypocentrum is provided with outlet 6；The upper centrum 3 and 1 junction of cylinder are equipped with homogenizing plate 7, and cylinder 1
Urea liquid spray gun 8 is equipped in the position of 7 lower section of homogenizing plate, which is characterized in that the top and bottom of the cylinder 1 are respectively equipped with
The first sound wave of multiple groups conducts horn 9 and the second sound wave of multiple groups conducts horn 10, the first sound wave conduction horn 9 and the second sound wave
Conduction horn 10 is separately connected narrow frequency acoustical generator 11 and wideband acoustical generator 12, and the narrow frequency acoustical generator 11 and wideband acoustical generator 12 are equal
Shut-off valve, filter, pressure is equipped with by piping connection air accumulator 13, between the narrow frequency acoustical generator 11 and air accumulator 13 to open
Pass, ball valve, metal hose and solenoid valve, be successively arranged between the wideband acoustical generator 11 and air accumulator 13 shut-off valve, filter,
Pressure reducing valve, pressure switch and solenoid valve.
Further, the first sound wave conduction horn 9 is arranged on upper centrum 3, and second sound wave conducts horn 10
The top of hypocentrum 4 is set.
Further, the air accumulator 13 connects gas source with non-return valve by shut-off valve, and the air accumulator upper end is equipped with peace
Full valve.
Further, the 11 frequency range 30-300Hz of narrow frequency acoustical generator, the frequency range of the wideband acoustical generator 12
20~10000Hz.
Wideband Frequency Adjustable acoustical generator need to use the clean compressed air of 0.2-0.3Mpa when working, narrow frequency acoustical generator 11 works
When need to use the clean compressed air of 0.4-0.8MPa, gas source be picked out by DN65 pipeline from air accumulator；
In use, narrow frequency acoustical generator 11 and wideband acoustical generator 12 are controlled by control system, by pressure on pyrolysis oven and
Temperature signal, in conjunction with the work of run signal guidance scene narrow the frequency acoustical generator 11 and wideband acoustical generator 12 of live nozzle.
Claims (4)
1. a kind of urea pyrolysis furnace equipped with sonic soot blowing device, including cylinder, the cylinder is cylindrical, on the outer wall of cylinder
Several support brackets are fixed with, cylinder upper and lower ends are respectively equipped with centrum and hypocentrum, are provided with hot wind inlet at the top of upper centrum,
Hypocentrum bottom end is provided with outlet, and the upper centrum and cylinder junction are equipped with homogenizing plate, and cylinder is located at the position below homogenizing plate
Equipped with urea liquid spray gun, which is characterized in that the top and bottom of the cylinder are respectively equipped with the first sound wave of multiple groups conduction horn
Horn is conducted with the second sound wave of multiple groups, the first sound wave conduction horn and the second sound wave conduction horn are separately connected the narrow sound that takes place frequently
Device and wideband acoustical generator, the narrow frequency acoustical generator and wideband acoustical generator pass through piping connection air accumulator, the narrow frequency acoustical generator
Shut-off valve, filter, pressure switch, ball valve, metal hose and solenoid valve, the wideband acoustical generator are equipped between air accumulator
Shut-off valve, filter, pressure reducing valve, pressure switch and solenoid valve are successively arranged between air accumulator.
2. a kind of urea pyrolysis furnace equipped with sonic soot blowing device according to claim 1, which is characterized in that first sound
Wave conducts horn and is arranged on upper centrum, and the top of hypocentrum is arranged in the second sound wave conduction horn.
3. a kind of urea pyrolysis furnace equipped with sonic soot blowing device according to claim 1, which is characterized in that the air accumulator
Gas source is connected with non-return valve by shut-off valve, the air accumulator upper end is equipped with safety valve.
4. a kind of urea pyrolysis furnace equipped with sonic soot blowing device according to claim 1, which is characterized in that described narrow to take place frequently
Sound device frequency range 30-300Hz, 20~10000Hz of frequency range of the wideband acoustical generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821331374.1U CN208817505U (en) | 2018-08-17 | 2018-08-17 | A kind of urea pyrolysis furnace equipped with sonic soot blowing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821331374.1U CN208817505U (en) | 2018-08-17 | 2018-08-17 | A kind of urea pyrolysis furnace equipped with sonic soot blowing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208817505U true CN208817505U (en) | 2019-05-03 |
Family
ID=66273721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821331374.1U Expired - Fee Related CN208817505U (en) | 2018-08-17 | 2018-08-17 | A kind of urea pyrolysis furnace equipped with sonic soot blowing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208817505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112705047A (en) * | 2020-12-17 | 2021-04-27 | 浙江德创环保科技股份有限公司 | Flue gas denitration system of asphalt mixing plant |
-
2018
- 2018-08-17 CN CN201821331374.1U patent/CN208817505U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112705047A (en) * | 2020-12-17 | 2021-04-27 | 浙江德创环保科技股份有限公司 | Flue gas denitration system of asphalt mixing plant |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190503 Termination date: 20200817 |