CN214019732U - Prilling tower and purifier thereof - Google Patents
Prilling tower and purifier thereof Download PDFInfo
- Publication number
- CN214019732U CN214019732U CN202022840630.3U CN202022840630U CN214019732U CN 214019732 U CN214019732 U CN 214019732U CN 202022840630 U CN202022840630 U CN 202022840630U CN 214019732 U CN214019732 U CN 214019732U
- Authority
- CN
- China
- Prior art keywords
- filter bag
- tail gas
- area
- filler
- prilling 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
Abstract
The utility model discloses a prilling tower and a purification device thereof, the purification device comprises a shell, the bottom of the shell is provided with a tail gas inlet, the top of the shell is provided with a tail gas outlet, a dry filter bag area and a filler area are arranged in the shell, and the tail gas firstly passes through the dry filter bag area and then passes through the filler area; the dry type filter bag area comprises a plurality of inner filter type filter bags which are arranged at intervals, and the openings of the inner filter type filter bags face the tail gas inlet; the filler area comprises a space formed between the inner filter type filter bags, and the filler area is filled with fillers for adsorbing pollutants in the tail gas. This purifier filters the urea-containing tail gas of prilling tower through the mode of the combination of filter bag and filler, and purifying effect is good, can make the dust concentration who discharges tail gas satisfy the emission demand.
Description
Technical Field
The utility model relates to a flue gas purification technical field especially relates to a prilling tower and purifier thereof.
Background
The urea is influenced by factors such as the defect of a spray nozzle of the prilling tower, the strength of urea particles and operation in the process of falling, cooling and forming of the prilling tower, and more urea powder can be formed and carried in the discharged tail gas. The dust concentration of the tail gas discharged from the granulation tower is generally 100-300 mg/m3The dust emission concentration is greatly higher than the dust concentration requirement (10 mg/m) of the discharged flue gas of the existing boiler3Below). With the increasing of the productivity of the prilling tower in recent years, the production of urea is greatly influenced, and the environment is also greatly polluted.
At present, there is not yet an effective mode to discharge gas outside the prilling tower and administer, therefore, how to design a purifier of prilling tower, can effectively purify the tail gas that contains the urea dust of prilling tower to satisfy the emission demand, be the technical problem that technical staff in the field need solve at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a prilling tower and purifier thereof, this purifier filters the urea-containing tail gas of prilling tower through the mode of the combination of filter bag and filler, and purifying effect is good, can make the dusty concentration who discharges tail gas satisfy the emission demand.
In order to solve the technical problem, the utility model provides a purification device of a prilling tower, which comprises a shell, wherein the bottom of the shell is provided with a tail gas inlet, the top of the shell is provided with a tail gas outlet, a dry filter bag area and a packing area are arranged in the shell, and the tail gas firstly passes through the dry filter bag area and then passes through the packing area; the dry type filter bag area comprises a plurality of inner filter type filter bags which are arranged at intervals, and the openings of the inner filter type filter bags face the tail gas inlet; the filler area comprises a space formed between the inner filter type filter bags, and the filler area is filled with fillers for adsorbing pollutants in the tail gas.
The utility model provides a purifier of prilling tower, after the tail gas of prilling tower got into the casing through the tail gas import, filter formula filter bag in advancing, the urea dust of filter formula filter bag in to tail gas in adopting filters, filter formula filter bag filterable tail gas through interior filter again through the filler district, the filler in the filler district adsorbs, with the pollutant of getting rid of, through the dual function of interior filter formula filter bag and filler district, can effectively purify tail gas, purifying effect is good, the dusty concentration that can make exhaust satisfies the emission demand.
The purification device of a prilling tower as described above, the top of the shell is provided with a feed inlet communicated with the packing region, the shell is further provided with a discharge outlet communicated with the bottom of the packing region, the packing in the packing region is fluidized packing, so that the packing can flow from the feed inlet to the packing region and can flow from the discharge outlet; the discharging device also comprises an opening and closing structure for opening and closing the discharging hole.
According to the purification device of the prilling tower, the shell is internally provided with the flower plate, the flower plate is provided with a plurality of mounting through holes, the inner filter type filter bag is fixed in the mounting through holes, and the opening of the inner filter type filter bag is communicated with the mounting through holes; the filling area specifically comprises a space among the flower plate, the outer peripheral wall of the inner filter type filter bag and the inner wall of the shell; the discharge hole is positioned below the pattern plate.
The purification device of the prilling tower further comprises at least one heating component, wherein the heating component is used for heating the packing in the packing area.
The purification device of the prilling tower as described above, the packing region is filled with packing comprising desiccant and adsorbent.
The purification device of the prilling tower as described above, wherein the adsorbent comprises activated carbon, activated alumina, silica gel or molecular sieve.
The purification device of the prilling tower comprises a shell, wherein the shell is provided with a dry filter bag area and a filler area, the dry filter bag area is arranged above the filler area, the filler area is arranged above the dry filter bag area, the filler area is divided into at least two purified air subareas, and each purified air subarea is correspondingly provided with at least one induced draft fan.
The purification device of the prilling tower further comprises a blowing device, wherein the blowing device comprises a blowing pipe positioned above the dry type filter bag area, the blowing pipe is provided with a plurality of blowing openings, and the blowing openings respectively correspond to the inner filter type filter bags; and each blowing opening is provided with a corresponding switch valve.
According to the purification device of the prilling tower, a collecting component is further arranged below the dry type filter bag area and used for collecting urea falling from the inner filter type filter bag.
The utility model also provides a prilling tower, including the tower body, still include above-mentioned arbitrary one purifier, the casing does a part of tower body.
Since the above-mentioned purification device has the above-mentioned technical effects, the prilling tower comprising the purification device also has the same technical effects, and the discussion thereof will not be repeated.
Drawings
Fig. 1 is a schematic structural diagram of a specific embodiment of a purification device of a prilling tower provided by the present invention;
FIG. 2 is a schematic top view of the arrangement of the fill area and the dry filter bag area of FIG. 1.
Description of reference numerals:
the device comprises a tower body 11, an inner filter type filter bag 12, a filler 13, a feeding hole 131, a discharging hole 132, a flower plate 14, a heating component 15, an injection pipe 16, an injection blowing hole 161, a collecting component 17, an air purifying chamber 18 and an induced draft fan 19.
Detailed Description
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
For the sake of easy understanding and simplicity of description, the following description is made in conjunction with the prilling tower and the purification device thereof, and the advantageous effects will not be repeated.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a purification device of a prilling tower according to an embodiment of the present invention; FIG. 2 is a schematic top view of the arrangement of the fill area and the dry filter bag area of FIG. 1.
In this embodiment, the prilling tower comprises a tower body 11 and a purification device; the purification device comprises a shell, wherein the bottom of the shell is provided with a tail gas inlet, the top of the shell is provided with a tail gas outlet, a dry filter bag area and a filler area are arranged in the shell, and the tail gas firstly passes through the dry filter bag area and then passes through the filler area; the dry filter bag area comprises a plurality of inner filter type filter bags 12 which are arranged at intervals, the openings of the inner filter type filter bags 12 face the tail gas inlet, the filler area comprises spaces formed among the inner filter type filter bags 12, and the filler area is filled with fillers 13 for adsorbing pollutants in the tail gas.
In this embodiment, the purification device is specifically disposed at the top of the tower body 11, so that the portion of the tower body 11 at the top can form a shell of the purification device, and the tail gas in the tower body 11 can directly enter the purification area at the top without being separately disposed. Of course, in actual installation, the housing of the purification apparatus may be also independently installed with respect to the tower body 11, and may be specifically set as required.
After the device is arranged, tail gas of the prilling tower enters the shell, and enters the interior filter type filter bag 12, urea particles in the tail gas can be adsorbed on the inner surface of the interior filter type filter bag 12, the tail gas filtered by the interior filter type filter bag 12 enters the filler area, and is adsorbed by the filler 13 in the filler area, so as to remove pollutants in the tail gas, and thus, the double functions of the filler 13 through the interior filter type filter bag 12 and the filler area can effectively purify the tail gas, the purifying effect is good, and the dust concentration of the discharged tail gas can meet the discharge demand.
In a specific embodiment, a top end of the tower body 11 of the prilling tower, that is, a top of the shell, is provided with a feeding port 131 communicated with the packing region, the tower body 11 is further provided with a discharging port 132 communicated with a bottom of the packing region, and the packing 13 filled in the packing region is specifically fluidized packing, so that the packing can flow from the feeding port 131 to the packing region, and can flow out of the packing region from the discharging port 132. Meanwhile, the discharge hole 132 is further provided with an opening and closing structure for opening and closing.
It can be understood that the filler 13 is fluidized, the particles forming the filler 13 are relatively fine, and in practical installation, the particle size is set according to the fluidity of the filler 13, so that the filler 13 can flow from the feeding hole 131 to the filling area for filling, and can flow out of the filling area after the opening and closing structure opens the discharging hole 132.
So set up, the filler 13 in filler district can be changed under equipment running state to the filler 13 discharge that will work inefficacy after a certain time carries out regeneration treatment, and fill new filler 13 or the filler 13 after the regeneration treatment, with the validity of guaranteeing filler district work, thereby improve the purifying effect to prilling tower tail gas.
Meanwhile, the filler 13 is fluidized, and the particle size of the filler is relatively small, so that the filler 13 has a large adsorption area, a large porosity, a small adsorption resistance and a good adsorption effect, can prolong the adsorption period to a certain extent, and can improve the purification efficiency and effect of the tail gas.
Wherein, the opening and closing structure can adopt structures such as a switch valve and the like.
When the device is specifically arranged, the filler 13 comprises a drying agent and an adsorbent, the composite filler is adopted, the drying agent can absorb moisture in the tail gas, the dryness of the filler 13 is ensured, the subsequent influence of agglomeration on the flow of the filler 13 is avoided, the adsorbent can adsorb pollutants in the tail gas and urea which is not collected by the inner filter type filter bag 12, the purpose of deeply purifying the tail gas is achieved, and the phenomenon that a chimney emits white smoke is avoided.
The adsorbent of the filler 13 may specifically include activated carbon, activated alumina, silica gel, or a molecular sieve, etc., so as to adsorb various pollutants such as ammonia gas, hydrogen sulfide, sulfur dioxide, or nitrogen oxide, etc., in the tail gas; of course, in actual installation, the selection of the adsorbent can be determined according to the type of the pollutant contained in the exhaust gas, so as to adsorb and remove the pollutant in the exhaust gas.
In a specific scheme, a flower plate 14 is arranged in a shell of the purification device, specifically, in the illustrated example, the flower plate 14 is arranged in a purification area of the tower body 11, the flower plate 14 is fixedly connected with the peripheral wall of the tower body 11, the flower plate 14 is provided with a plurality of mounting through holes, the inner filter type filter bag 12 is fixedly connected with the mounting through holes, obviously, the opening of the inner filter type filter bag is communicated with the mounting through holes, and tail gas in the tower directly enters the inner filter type filter bag 12 after rising.
On this basis, the filler district specifically includes that the space forms between the perisporium of card 14, interior filter bag 12 and the perisporium of tower body 11, and filler 13 fills the space around interior filter bag 12 promptly, and card 14 is as the support of filler 13, and tail gas can directly get into the filler district after discharging from interior filter bag 12 is inside, and this kind of structure setting has fully utilized the space between interior filter bag 12, can save space, simplified structure.
In the illustrated embodiment, the filling area is the space around the entire inner filter bag 12, and may be partially the space around the inner filter bag 12 when actually disposed.
In a specific arrangement, the discharge port 132 of the filling region is located below the faceplate 14, and may be connected to a discharge pipe or the like to guide the discharge direction, as shown in fig. 1.
In a specific scheme, the purification device further comprises at least one heating component 15, and the heating component 15 is used for heating the filler 13 in the filler area.
Thus, the filler 13 in the filler region is heated by the heating part 15, so that the filler 13 can be kept at a proper temperature and a low humidity, and the activity of the adsorbent and the desiccant in the filler 13 can be improved.
Because the filling area is at least a space formed between the inner filter type filter bags 12 in a partial area, the filling 13 can transfer heat to the inner filter type filter bags 12 after being heated, so that the inner filter type filter bags 12 can also be kept at a proper temperature and a low humidity, and the problems of moisture absorption and crystallization of urea powder in the inner filter type filter bags 12 or bag pasting are avoided.
Specifically, the purification device can be provided with a plurality of heating parts 15 which are inserted into the filling area at intervals from bottom to top, so as to ensure the temperature consistency of the filling 13 in the filling area and the inner filter type filter bag 12.
In a specific scheme, an air purifying chamber 18 is further arranged in a purification area of the tower body 11, the air purifying chamber 18 is located above the dry filter bag area and the filler area, and tail gas purified by the dry filter bag area and the filler area is buffered by the air purifying chamber 18 and then discharged into the atmosphere. The solid arrows in fig. 1 indicate the flow direction of the exhaust gas.
In actual setting, the air purifying chamber 18 can be divided into at least two purified gas subareas, each purified gas subarea is correspondingly provided with at least one induced draft fan 19, and during operation, the tail gas passes through the dry filter bag area and the filler area by utilizing the suction effect of the induced draft fan 19.
In a specific scheme, the purification device further comprises a blowing device, the blowing device comprises a blowing pipe 16 located above the dry-type filter bag area, the blowing pipe 16 is provided with a plurality of blowing openings 161 which respectively correspond to the inner filter type filter bags 12, and the inner filter type filter bags 12 can be blown and cleaned by the blowing device, so that the working effectiveness of the inner filter type filter bags 12 is ensured.
Specifically, each blowing port 161 is further provided with a corresponding switch valve, so that the dry filter bag zone can be partitioned in combination with the clean air partition, for example, when the inner filter bag 12 corresponding to a certain clean air partition is blown, the induced draft fan 19 corresponding to the clean air partition can be closed, the switch valve of each blowing port 161 corresponding to the clean air partition is opened to realize the blowing operation of each inner filter bag 12 corresponding to the clean air partition, and after the blowing operation is finished, the switch valve of each corresponding blowing port 161 is closed, and the corresponding induced draft fan 19 is opened.
In a specific scheme, a collecting part 17 is further arranged below the dry type filter bag area, the collecting part 17 is used for collecting urea dust falling from the inner filter type filter bag 12, and the urea dust can be collected by a scraper machine subsequently to be recycled. It will be appreciated that the arrangement of the collecting member 17 should not affect the circulation of the exhaust gases. The hollow arrow in fig. 1 indicates the direction in which the urea falls.
In addition, a flow guiding and equalizing device can be arranged at the tail gas inlet of the gas purifying device, so that the airflow entering the shell of the gas purifying device is uniformly distributed.
The granulation tower and the purification device thereof provided by the utility model are introduced in detail. 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 (10)
1. The purification device of the prilling tower is characterized by comprising a shell, wherein the bottom of the shell is provided with a tail gas inlet, the top of the shell is provided with a tail gas outlet, a dry filter bag area and a filler area are arranged in the shell, and the tail gas firstly passes through the dry filter bag area and then passes through the filler area; the dry type filter bag area comprises a plurality of inner filter type filter bags which are arranged at intervals, and the openings of the inner filter type filter bags face the tail gas inlet; the filler area comprises a space formed between the inner filter type filter bags, and the filler area is filled with fillers for adsorbing pollutants in the tail gas.
2. The purification apparatus of a granulation tower as claimed in claim 1, wherein the top of the housing has a feed inlet communicating with the packing region, the housing further has a discharge outlet communicating with the bottom of the packing region, the packing region is filled with fluidized packing so that the packing can flow from the feed inlet to the packing region and can flow from the discharge outlet; the discharging device also comprises an opening and closing structure for opening and closing the discharging hole.
3. The purification device of a prilling tower as claimed in claim 2, wherein a flower plate is provided in the housing, the flower plate has a plurality of mounting through holes, the inner filter bag is fixed in the mounting through holes, and the opening of the inner filter bag is communicated with the mounting through holes; the filling area specifically comprises a space among the flower plate, the outer peripheral wall of the inner filter type filter bag and the inner wall of the shell; the discharge hole is positioned below the pattern plate.
4. The prilling tower purification apparatus of claim 1, further comprising at least one heating element for heating the packing in the packing region.
5. The purge apparatus of a prilling tower of claim 1, wherein the packing material packed in the packing region comprises an adsorbent.
6. The prilling tower purification apparatus of claim 5, wherein the adsorbent comprises activated carbon, activated alumina, silica gel, or molecular sieves.
7. The prilling tower of any one of claims 1-6, wherein the housing further comprises an air-cleaning chamber above the dry filter bag zone and the packing zone, the air-cleaning chamber is divided into at least two air-cleaning zones, and each air-cleaning zone is provided with at least one induced draft fan.
8. The cleaning apparatus for a prilling tower as claimed in any one of claims 1-6, wherein a blowing device is further included, said blowing device comprising a blowing tube located above said dry-type filter bag zone, said blowing tube having a plurality of blowing ports corresponding to a plurality of said inner-filter type filter bags, respectively; and each blowing opening is provided with a corresponding switch valve.
9. The purification apparatus of a prilling tower as claimed in any one of claims 1-6, wherein a collection member is further provided below the dry filter bag zone for collecting urea dropped from the inner filter bag.
10. Prilling tower comprising a tower body, characterized in that it further comprises a purification device according to any one of claims 1-9, said housing being part of said tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022840630.3U CN214019732U (en) | 2020-12-01 | 2020-12-01 | Prilling tower and purifier thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022840630.3U CN214019732U (en) | 2020-12-01 | 2020-12-01 | Prilling tower and purifier thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214019732U true CN214019732U (en) | 2021-08-24 |
Family
ID=77382616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022840630.3U Active CN214019732U (en) | 2020-12-01 | 2020-12-01 | Prilling tower and purifier thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214019732U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849434A (en) * | 2022-05-09 | 2022-08-05 | 福建龙净环保股份有限公司 | Prilling tower system and tail gas treatment device |
-
2020
- 2020-12-01 CN CN202022840630.3U patent/CN214019732U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114849434A (en) * | 2022-05-09 | 2022-08-05 | 福建龙净环保股份有限公司 | Prilling tower system and tail gas treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105080332B (en) | Agglomerates of sintered pellets reclamation system and process | |
| CN106693603A (en) | Activated carbon method flue gas cleaning device and flue gas cleaning method | |
| CN107551757A (en) | A kind of flue gas desulfurization and denitration method and device | |
| CN105618019A (en) | Waste heat utilization-containing active carbon thermal desorption method and apparatus thereof | |
| CN107551756A (en) | Prevent the flue gas desulfurization and denitration method and device of corrosion | |
| CN105688873A (en) | Thermal desorption method and device for activated carbon | |
| CN214019732U (en) | Prilling tower and purifier thereof | |
| CN206240259U (en) | A kind of flue gas desulfurization and denitrification device | |
| CN205760451U (en) | Activated carbon method smoke eliminator | |
| CN109529576A (en) | A kind of flue gas low-temperature desulphurization denitration spray scrubber | |
| CN201586464U (en) | Large-scale active coke convection adsorption flue gas purification system | |
| CN102716622B (en) | Integrated bag-type dust removal and fluidized adsorption device | |
| CN109603409A (en) | A kind of flue gas purification system and flue gas purifying method | |
| CN109675410B (en) | Operation method of cyclic regeneration process system for treating VOCs waste gas | |
| CN206240258U (en) | Prevent the flue gas desulfurization and denitrification device of corrosion | |
| CN102145245B (en) | Large active coke convection/adsorption gas purifying system and purifying method | |
| CN209205022U (en) | A kind of purification system of cooperation-removal multi-pollutant | |
| CN205042306U (en) | Flue gas dust removal SOx/NOx control integration system | |
| CN109745824B (en) | VOCs waste gas treatment recycling process system | |
| CN105169910B (en) | Furnace flue gas dedusting and pernicious gas synergistic purification device | |
| CN108744762A (en) | A kind of dedusting-adsorption desorption combination integrated apparatus and its working method | |
| CN206621912U (en) | A kind of exhaust dust device with bag in flue gas purification system | |
| CN109985488A (en) | A kind of rotating cylinder Adsorption Concentration device | |
| CN202219130U (en) | Equipment for purifying industrial waste gases | |
| CN105056683B (en) | A kind of flue-gas dust-removing and desulfurization denitrification integral system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |