CN214019893U - Compound clean system of flue gas of prilling tower - Google Patents
Compound clean system of flue gas of prilling tower Download PDFInfo
- Publication number
- CN214019893U CN214019893U CN202021315996.2U CN202021315996U CN214019893U CN 214019893 U CN214019893 U CN 214019893U CN 202021315996 U CN202021315996 U CN 202021315996U CN 214019893 U CN214019893 U CN 214019893U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- electric field
- dust
- ash
- tower
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a compound clean system of flue gas of prilling tower, this compound clean system of flue gas include dust collector and the electric field device that can produce high-tension electric field, electric field device arranges dust collector technology low reaches make the flue gas flow through earlier dust collector flows through high-tension electric field again. Electric field device plays the effect of dust collector dust removal in coordination, both are in coordination, make the compound clean system of flue gas reach higher dust collection efficiency, and, the electric field can also make the ionization of flue gas produce a large amount of ozone, ozone has very strong oxidability, can generate NH4NO3 with the ammonia reaction, thereby make the ammonia get rid of with the high efficiency, therefore electric field device still plays the effect that the high efficiency removed ammonia, consequently, this compound clean system of flue gas not only can high-efficient dust removal also can high-efficiently remove ammonia, in addition, this compound clean system of flue gas can directly reform transform on current granulation tower and form, the transformation is with low costs, and the facilitate promotion is used.
Description
Technical Field
The utility model relates to a flue gas purification technology field especially relates to a compound clean system of flue gas of prilling tower.
Background
In the granulation process of the fertilizer granulation tower, the raw material in a molten state is sprayed at the tower height and freely falls down to a trough for collection, cold air exchanges heat with the raw material from the tower bottom upwards to cool the raw material, dust is inevitably generated in the process, and the dust concentration is about 200 plus 300mg/Nm3Therefore, a flue gas purification system is required. In addition, the flue gas of the fertilizer granulation tower also contains ammonia gas,
at present, a flue gas purification system of a fertilizer granulation tower mostly adopts a wet washing device or a filter bag filtering device for dust removal. The wet washing device has low dust removal efficiency and generates a large amount of water vapor in the operation process, so that the tailing phenomenon is serious. The filter bag filter device has higher dust removal efficiency, but can not absorb ammonia gas, so that the ammonia can not be effectively removed.
In view of the above, there is a need to develop a flue gas purification system capable of removing dust and ammonia efficiently, and in addition, the flue gas purification system should meet the modification requirement of the existing prilling tower so as to be popularized and applied on the existing prilling tower.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a compound clean system of flue gas of prilling tower, compound clean system of flue gas sets up the tower body top at the prilling tower, compound clean system of flue gas includes dust collector and the electric field device that can produce high-tension electric field, electric field device arranges dust collector technology low reaches make the flue gas flow through earlier dust collector flows through high-tension electric field again.
Optionally, the electrode component of the electric field device is arranged in a clean air chamber of the flue gas composite purification system.
Optionally, the electric field means comprises a power supply for supplying power to the electrode assembly, the power supply being mounted externally of the plenum.
Optionally, the flue gas composite purification system further comprises a first ash removal device, the first ash removal device is used for removing ash for the electric field device, and the first ash removal device is one of a rapping ash removal device, a liquid path spraying ash removal device and a gas path blowing ash removal device, or a combination of two or three of the rapping ash removal device, the liquid path spraying ash removal device and the gas path blowing ash removal device.
Optionally, the dust removal device is a wet scrubbing dust removal device.
Optionally, the dust removal device is a filter bag filtration dust removal device, the flue gas composite purification system further includes a second ash removal device for removing ash from the filter bag, and the second ash removal device is one of a liquid path spraying ash removal device and a gas path spraying ash removal device or a combination of the two.
The utility model provides a compound clean system of flue gas of prilling tower has following technological effect:
when the flue gas flows through the dust removal device, most of dust in the flue gas can be removed, the dust which is not removed flows through the electric field along with the air flow, the air flow is ionized in the electric field, the dust in the air flow is charged, and the charged dust is collected by the electrode of the electric field device under the action of electrostatic force, so that the dust can be removed, therefore, the electric field device plays a role in removing dust in cooperation with the dust removal device, and the electric field device and the dust removal device cooperate to enable the flue gas composite purification system to achieve higher dust removal efficiency.
Further, since the oxygen content in the gas flow is high (about 21%), a large amount of ozone is generated in the process of ionization by the electric field. Ozone has strong oxidizability and can react with ammonia gas to generate NH4NO3 (the reaction formula is 6NH3+4O3 ═ 3NH4NO3+3H2O), so that the ammonia gas can be efficiently removed, and the electric field device also has the function of efficiently removing ammonia, so that the flue gas composite purification system not only can efficiently remove dust, but also can efficiently remove ammonia.
In addition, the compound purification system for flue gas can be directly formed by modification on the existing granulation tower, and has low modification cost and convenient popularization and application.
Drawings
Fig. 1 is a schematic diagram of a flue gas combined purification system of a prilling tower.
The reference numerals are explained below:
1, a tower body, 11 circumferential inner tower walls and 12 air inlets;
2, a flue gas composite purification system;
21 circumferential side wall, 22 top wall, 23 collecting pool, 24 pattern plate, a air purifying chamber, b dust removing chamber, 25 induced draft fan, 26 filter bag filtering dust removing device, 261 filter bag, 27 electric field device, 271 electrode part, 272 power supply, 28 first dust removing device and 29 second dust removing device.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following provides a detailed description of the technical solution of the present invention with reference to the accompanying drawings.
The top of the tower body 1 of the prilling tower is provided with a flue gas composite purification system 2 for purifying flue gas. Some prilling towers (such as fertilizer prilling towers) produce flue gas that contains not only dust but also ammonia.
The inside of the tower body 1 of the prilling tower is provided with a circumferential inner tower wall 11, and the circumferential inner tower wall 11 is provided with an air inlet.
The composite flue gas cleaning system 2 comprises a circumferential side wall 21 and a top wall 22. The top wall 22 blocks the top port of the circumferential side wall 21, and an induced draft fan 25 is installed on the top wall 22. The circumferential side wall 21 is fixed to the top of the body 1 of the prilling tower, in particular to the circumferential inner tower wall 11.
The flower plate 24 is arranged in the enclosed space of the circumferential side wall 21, the enclosed space of the circumferential side wall 21 is divided into an upper cavity and a lower cavity by the flower plate 24, the upper cavity is a gas purifying chamber a, and the lower cavity is a dust removing chamber b.
The combined flue gas purification system 2 further comprises a dust removal device and an electric field device 27, wherein the electric field device 27 is arranged at the downstream of the dust removal device, and flue gas flows from bottom to top in the figure, so that the electric field device 27 is arranged above the dust removal device. In the figure, a collecting tank 23 is also arranged below the dust removing device, and the collecting tank 23 is fixed at the bottom end of the circumferential inner tower wall 11.
In the operation process of the prilling tower, the flue gas enters the enclosed space of the circumferential side wall 21 through the air inlet under the drainage action of the draught fan 25, then flows through the dust removal device firstly, then flows through the high-voltage electric field, and finally is discharged into the atmosphere under the drainage action of the draught fan 25.
When the flue gas flows through the dust removal device, most of dust in the flue gas can be removed, the dust which is not removed flows through the electric field along with the air flow, the air flow is ionized in the electric field, the dust in the air flow is charged, and the charged dust is collected by the electrode of the electric field device 27 under the action of electrostatic force, so that the dust can be removed, therefore, the electric field device 27 plays a role of removing dust in cooperation with the dust removal device, and the dust and the electrostatic force cooperate with each other, so that the flue gas composite purification system 2 achieves higher dust removal efficiency.
Further, since the oxygen content in the gas flow is high (about 21%), a large amount of ozone is generated in the process of ionization by the electric field. Ozone has strong oxidizability and can react with ammonia gas to generate NH4NO3, and the reaction formula is as follows: 6NH3+4O3 is 3NH4NO3+3H2O to make the ammonia get rid of with high efficiency, therefore electric field device 27 still plays the effect of high-efficient ammonia removal, so this compound clean system 2 of flue gas not only can high-efficient dust removal but also can high-efficient ammonia removal.
In addition, the compound purification system for flue gas can be directly formed by modification on the existing granulation tower, and has low modification cost and convenient popularization and application.
Specifically, the electric field device 27 includes an electrode part 271 and a power source 272 for supplying power to the electrode part 271, and the electrode part 271 includes an anode and a cathode, and in a power-on state, a voltage difference occurs between the anode and the cathode, so that a high-voltage electric field is formed therebetween.
In the illustrated embodiment, the electrode member 271 is mounted in the air-purifying chamber a and suspended below the top wall 22 by a suspension member. The electrode member 271 is disposed in the air purifying chamber a, so that the installation is relatively easy, and the arrangement space of the dust removing device is not occupied.
In the illustrated embodiment, the power source 272 is mounted on the top wall 22, and the mounting is relatively easy, but in actual practice, the power source 272 may be mounted on the circumferential side wall 21, and may be mounted outside the clean air chamber a.
Specifically, the dust removal device can be a wet scrubbing dust removal device, and the wet scrubbing dust removal device washes the flue gas through spraying liquid, so that dust in the flue gas flows down along liquid drops, and the purpose of dust removal is achieved. The ammonia gas is easy to dissolve in water, so that the wet scrubbing and dust removing device can remove dust and can also remove ammonia in an auxiliary manner. In order to improve the auxiliary ammonia removal effect of the wet scrubbing and dust removal device, substances capable of removing ammonia gas can be additionally added into the spray liquid.
Specifically, as shown, the dust removing device may also be a filter bag dust removing device 26. The filter bag filtering and dust removing device 26 comprises a plurality of filter bags 261, and each filter bag 261 is hung below the flower plate 24. The filter bag filtering dust removing device 26 filters the smoke by using the surface of the filter bag, so that the dust in the smoke is deposited on the surface of the filter bag, thereby achieving the purpose of dust removal.
As shown in fig. 1, the flue gas composite purification system 2 further includes a first ash removal device 28, and the first ash removal device 28 is used for removing ash from the electric field device 27. The first ash removal device 28 may be any one of a rapping ash removal device, a liquid path spraying ash removal device, and a gas path blowing ash removal device, or a combination of any two or three of them. The rapping ash removal device, the liquid path spraying ash removal device and the gas path blowing ash removal device are all ash removal devices commonly used in the field, and the structures of the devices are well known to those skilled in the art.
As shown, when the dust removing device is a filter bag dust removing device 26, a second ash removing device 29 is further provided, and the second ash removing device 29 is used for removing ash from the filter bag 261. The second ash removing device 29 can be one of a liquid path spraying ash removing device and a gas path blowing ash removing device or a combination of the two.
The above details are provided for the flue gas composite purification system of the prilling tower provided by the utility model. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (6)
1. Compound clean system of flue gas of prilling tower, compound clean system of flue gas (2) sets up tower body (1) top at the prilling tower, tower wall (11) in tower body (1) inside being equipped with circumference of prilling tower is equipped with the air intake on tower wall (11) in the circumference, compound clean system of flue gas (2) are including circumference lateral wall (21) and collecting pit (23), circumference lateral wall (21) are fixed the top of tower wall (11) in the circumference, the bottom of tower wall (11) in the circumference is fixed in collecting pit (23), compound clean system of flue gas (2) are including dust collector and electric field device (27) that can produce high-voltage electric field, electric field device (27) are arranged dust collector technology low reaches makes the flue gas flow through earlier dust collector flows through high-voltage electric field again.
2. The combined flue gas purification system of a prilling tower according to claim 1, wherein the electrode part (271) of the electric field device (27) is arranged in the gas-purifying chamber (a) of the combined flue gas purification system (2).
3. The combined flue gas purification system of a prilling tower according to claim 2, wherein the electric field device (27) comprises a power source (272) for powering the electrode means (271), said power source (272) being mounted outside the air-purifying chamber (a).
4. The combined flue gas purification system of a prilling tower as claimed in any one of claims 1-3, wherein said combined flue gas purification system (2) further comprises a first ash removal device (28), said first ash removal device (28) is used for removing ash from said electric field device (27), said first ash removal device (28) is one of a rapping ash removal device, a liquid path spraying ash removal device, a gas path blowing ash removal device, or a combination of two or three of them.
5. The compound flue gas purification system of a prilling tower according to any one of claims 1-3, wherein the dust removal device is a wet scrubbing dust removal device.
6. The combined flue gas purification system of a prilling tower as claimed in any one of claims 1-3, wherein said dust-removing device is a filter bag filtering dust-removing device (26), said combined flue gas purification system (2) further comprises a second ash-removing device (29) for removing ash from the filter bag (261), said second ash-removing device (29) is one of a liquid path spraying ash-removing device, a gas path blowing ash-removing device or a combination of both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021315996.2U CN214019893U (en) | 2020-07-07 | 2020-07-07 | Compound clean system of flue gas of prilling tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021315996.2U CN214019893U (en) | 2020-07-07 | 2020-07-07 | Compound clean system of flue gas of prilling tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214019893U true CN214019893U (en) | 2021-08-24 |
Family
ID=77331718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021315996.2U Active CN214019893U (en) | 2020-07-07 | 2020-07-07 | Compound clean system of flue gas of prilling tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214019893U (en) |
-
2020
- 2020-07-07 CN CN202021315996.2U patent/CN214019893U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101780435A (en) | Wet static dedusting device | |
| CN201137998Y (en) | Integrated cooking fume purifier | |
| CN112495113A (en) | High-efficient purifier who contains wet flue gas | |
| CN209985137U (en) | Dye waste gas purification treatment device | |
| CN215916737U (en) | High tower granulation tail gas aftertreatment device | |
| CN205549935U (en) | Wet -type electric precipitation secondary absorption tower | |
| CN201006047Y (en) | Multifunctional cyclone type plasma air-treatment machine | |
| CN207462906U (en) | A kind of fresh air system purifying and dedusting device | |
| CN214019893U (en) | Compound clean system of flue gas of prilling tower | |
| CN106693600A (en) | Industrial waste gas treatment device utilizing novel energy source | |
| CN208852614U (en) | It is a kind of for separating the final dusting equipment of fine particle dust in tail gas | |
| CN208990478U (en) | A kind of Integral tower and device for realizing the gas cleaning containing coal dust | |
| CN214513571U (en) | Dust-containing waste gas purifying device | |
| CN210906566U (en) | Spraying structure suitable for wet-type electric precipitation equipment | |
| CN205587145U (en) | High frequency wet -type blue light dust remover | |
| CN2933542Y (en) | High concentration electric-bag composition dust remover | |
| CN112295353A (en) | Trichlorosilane gas wet dust collector | |
| CN207187983U (en) | A kind of high temperature pyrolysis tail gas from incinerator electric dust collector | |
| CN206911058U (en) | A kind of equipment for treating industrial waste gas using novel energy | |
| CN205914283U (en) | Simple and easy wet -type electricity dust collector | |
| KR940001416B1 (en) | Wet electric dust collector | |
| CN207056785U (en) | The vertical square tube wet electrical dust precipitator of construction | |
| CN108722094A (en) | A kind of final dusting equipment for detaching fine particle dust in tail gas | |
| CN205308573U (en) | Novel electrostatic dust removing device | |
| CN218902213U (en) | Novel wet electrostatic dust collection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |