CN214915816U - Spray granulation tower for treating 2-naphthol wastewater and 2-naphthol production system - Google Patents
Spray granulation tower for treating 2-naphthol wastewater and 2-naphthol production system Download PDFInfo
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- CN214915816U CN214915816U CN202120843485.6U CN202120843485U CN214915816U CN 214915816 U CN214915816 U CN 214915816U CN 202120843485 U CN202120843485 U CN 202120843485U CN 214915816 U CN214915816 U CN 214915816U
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Abstract
The utility model discloses a spray granulation tower and a 2-naphthol production system for treating 2-naphthol waste water, which comprises a tower body, a hot air inlet, a hot air outlet, a salt particle discharge port and an atomization device, wherein the tower body comprises a separation section tower body, a spray granulation section tower body and a bottom section tower body which are arranged from top to bottom in sequence; the atomization device is arranged on the spray granulation section tower body, the hot air inlet and the salt particle discharge port are respectively arranged on the bottom section tower body, and the hot air outlet is arranged at the upper end part of the separation section tower body; a hot air circulation port communicated with the hot air outlet is formed at the lower end part of the bottom section tower body, an air distribution disc is arranged inside the bottom section tower body, a hot air inlet and a salt particle discharge port are respectively positioned above the air distribution disc, and the hot air circulation port is positioned below the air distribution disc; and a 2-naphthol production system comprising the spray granulation tower; the spray granulation tower can better realize the separation of particles and dust, is favorable for the formation of salt particles, and solves the problems of environmental deterioration and blockage.
Description
Technical Field
The utility model belongs to the technical field of the production of 2-naphthol, concretely relates to spray granulation tower and 2-naphthol production system that 2-naphthol waste water treatment used.
Background
The beta salt wastewater in the 2-naphthol production process enters a spray granulation tower for drying to obtain salt after being concentrated by an MVR system, the particle size of an atomized material is basically less than 0.5 mu m due to the conditions of the spray tower and an atomizing nozzle, most of the atomized salt can be separated from a cyclone separator to a storage bin, but about 30 percent of salt still enters a rear-end bag-type dust remover and a tail gas absorption device, so that the operation load of the bag-type dust remover is increased, the dust removal effect is poor, a tail gas air pipeline is frequently blocked due to dust problems, and the tail gas absorption tower needs to be frequently cleaned and replaced; the tail gas fan has a large vibration value of impeller salt deposition caused by the problem of dust at the tail end, and needs to be frequently washed; the energy consumption of coal gas is large, the specific gravity of materials is small, and the condition of waste exists in ton bags; meanwhile, the ambient environment and the packaging environment are poor due to the large dust amount.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming prior art's not enough, provide a spray granulation tower that modified 2-naphthol waste water treatment was used, this spray granulation tower not only can reduce air velocity, realizes granule and dust separation, moreover can cyclic utilization be hot-blast, increase liquid drop and dust, hot-blast contact time, provide more dust crystal nucleus, be favorable to the formation of salt granule, the environmental variation and the jam problem that a large amount of salt granules and dust brought in the aftertreatment have been avoided simultaneously.
The utility model discloses still provide a 2-naphthol production system who adopts above-mentioned spray granulation tower simultaneously.
In order to achieve the above object, the utility model adopts a technical scheme that:
a spray granulation tower for treating 2-naphthol wastewater comprises a tower body, a hot air inlet, a hot air outlet, a salt particle discharge port and an atomization device, wherein the tower body comprises a separation section tower body for separating salt particles and dust, a spray granulation section tower body for spray granulation and a bottom section tower body for supplying hot air and discharging, and the separation section tower body, the spray granulation section tower body and the bottom section tower body are sequentially arranged from top to bottom; the atomization device is arranged on the spray granulation section tower body, the hot air inlet and the salt particle discharge port are respectively arranged on the bottom section tower body, and the hot air outlet is arranged at the upper end part of the separation section tower body; the lower end part of the bottom section tower body is also provided with a hot air circulation port communicated with the hot air outlet, the bottom section tower body is internally provided with an air distribution disc which is used for dividing the bottom section tower body into an upper area and a lower area and allowing air to pass through, the hot air inlet and the salt particle discharge port are respectively positioned above the air distribution disc, and the hot air circulation port is positioned below the air distribution disc.
According to some preferred and concrete aspects of the utility model, salt granule discharge gate the heated air circulation mouth is located same one side of bottom segment tower body, hot-blast import is located the opposite side of salt granule discharge gate, hot-blast import salt granule discharge gate with the heated air circulation mouth from top to bottom sets gradually.
According to some preferred aspects of the present invention, the air distribution plate includes a plate body, a plurality of micro-pores formed on the plate body and for allowing the passage of air and dust and preventing the passage of salt particles, the plurality of micro-pores being uniformly distributed on the plate body.
According to some preferred aspects of the present invention, the separation section tower body the spray granulation section tower body and the bottom section tower body three's width is different.
Further, the widths of the separation section tower body, the spray granulation section tower body and the bottom section tower body are gradually decreased.
According to some preferred aspects of the invention, the height of the separation section tower body is greater than the height of the bottom section tower body and less than the height of the spray granulation section tower body.
According to some specific and preferred aspects of the invention, the atomizing device comprises an atomizing nozzle, the orifice of which faces upwards.
According to some preferred aspects of the present invention, the atomizing device is disposed at a lower portion of the spray granulation section tower body.
According to some preferred and specific aspects of the utility model, separation section tower body include first barrel, with the first cone that first barrel integrated into one piece set up, spray granulation section tower body include the second barrel, with the second cone that second barrel integrated into one piece set up, first barrel first cone the second barrel with the second cone from top to bottom sets gradually, the width of first barrel is greater than 1.2 times the width of second barrel, the second cone with this body coupling intercommunication of bottom segment tower.
The utility model provides a further technical scheme: a 2-naphthol production system comprising the spray granulation tower for treating the 2-naphthol wastewater.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses be difficult to high-efficient and effectively collect atomizing salt granule and make rear end sack cleaner and tail gas absorbing device operational load big based on what present spray granulation tower exists, the poor scheduling problem of dust removal effect, innovatively, the spray granulation tower of a modified 2-naphthol waste water treatment usefulness is provided, its tower body structure through improving present spray granulation tower, and newly-increased setting is at this internal cloth wind disk of bottom segment tower and set up the heated air circulation mouth on the bottom segment tower body, not only realized reducing air velocity, realize granule and dust separation, and can cyclic utilization be hot-blast, increase liquid drop and dust, hot-blast contact time, provide more dust crystal nucleuses, be favorable to the formation of salt granule, environmental variation and the jam problem that a large amount of salt granule and dust brought in having avoided the aftertreatment.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a schematic structural view of a spray granulation tower for treating 2-naphthol wastewater according to an embodiment of the present invention;
wherein, 1, a tower body; 11. a separation section column body; 111. a first cylinder; 112. a first cone; 12. a spray granulation section tower body; 121. a second cylinder; 122. a second cone; 13. a bottom section tower body; 2. a hot air inlet; 3. a hot air outlet; 4. a salt particle discharge port; 5. an atomizing device; 6. a hot air circulation port; 7. an air distribution plate; 8a, a first manhole; 8b, a second manhole; 9. a spare hole; 10. and a reinforcing plate.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description thereof. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be understood in a broad sense, e.g., they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless otherwise expressly stated or limited, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" 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. Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example (b): as shown in fig. 1, the present embodiment provides a spray granulation tower for treating 2-naphthol wastewater, the spray granulation tower comprises a tower body 1, a hot air inlet 2, a hot air outlet 3, a salt particle discharge port 4, and an atomizing device 5 with a liquid inlet communicated with beta salt wastewater in an external 2-naphthol production process, the tower body comprises a separation section tower body 11 for separating salt particles and dust, a spray granulation section tower body 12 for spray granulation, and a bottom section tower body 13 for supplying hot air and discharging, the separation section tower body 11, the spray granulation section tower body 12 and the bottom section tower body 13 are sequentially arranged from top to bottom; wherein, the atomizing device 5 is arranged on the spray granulation section tower body 12, the hot air inlet 2 and the salt particle discharge port 4 are respectively arranged on the bottom section tower body 13, and the hot air outlet 3 is arranged at the upper end part of the separation section tower body 11; the lower end of the bottom section tower body 13 is also provided with a hot air circulation port 6 communicated with the hot air outlet 3, the bottom section tower body 13 is internally provided with an air distribution disc 7 which is used for dividing the bottom section tower body into an upper area and a lower area and allowing air to pass through, the hot air inlet 2 and the salt particle discharge port 4 are respectively positioned above the air distribution disc 7, and the hot air circulation port 6 is positioned below the air distribution disc 7.
In this example, by providing the hot air circulation port 6 communicated with the hot air outlet 3, the hot air of the part of the hot air outlet 3 containing the dust is guided into the bottom tower body 13, and further the salt particles possibly contained are blocked by the air distribution plate 7 (the air distribution plate 7 in this example can allow the air and the dust to pass through and prevent the salt particles from passing through), and the carried dust can be used as the crystal nucleus of the atomization granulation, which is beneficial to the formation of the particles, and the hot air is introduced from the bottom, so that the salt particles deposited on the air distribution plate 7 can be lifted, and the dust can be taken away.
In this example, the salt particle discharge port 4 and the hot air circulation port 6 are located on the same side of the bottom tower body 13, the hot air inlet 2 is located on the opposite side of the salt particle discharge port 4, and the hot air inlet 2, the salt particle discharge port 4 and the hot air circulation port 6 are sequentially arranged from top to bottom.
In this example, specifically, the air distribution plate 7 includes a plate body, and a plurality of micropores formed on the plate body for allowing the passage of air and dust and preventing the passage of salt particles, the plurality of micropores being uniformly distributed on the plate body, and the pore size of the micropores being determined according to the size of the salt particles.
In this example, the separation stage tower body 11, the spray granulation stage tower body 12, and the bottom stage tower body 13 are different in width. Further, the widths of the separation section tower body 11, the spray granulation section tower body 12 and the bottom section tower body 13 are gradually decreased. Meanwhile, in this example, the height of the separation-stage tower body 11 is greater than the height of the bottom-stage tower body 13 and less than the height of the spray granulation-stage tower body 12. Specifically, in this example, the separation-stage tower body 11 includes a first cylinder 111 and a first cone 112 integrally formed with the first cylinder 111, the spray granulation-stage tower body 12 includes a second cylinder 121 and a second cone 122 integrally formed with the second cylinder 121, the first cylinder 111, the first cone 112, the second cylinder 121 and the second cone 122 are sequentially disposed from top to bottom, the width of the first cylinder 111 is greater than 1.2 times that of the second cylinder 121, and the second cone 122 is connected and communicated with the bottom-stage tower body 13.
The arrangement of the separation section tower body 11, the spray granulation section tower body 12 and the bottom section tower body 13 can significantly reduce the air flow velocity (the air flow velocity is reduced by changing from a narrow space to a wide space), so that the salt particles are separated from the dust by gravity as much as possible, the hot air discharged out is almost free of the salt particles, and the difficulty in post-treatment is reduced.
In this example, the spray granulation tower further comprises a first manhole 8a, a spare hole 9, and at least one second manhole 8b, which are respectively provided on the first cylinder 111, and the second cylinder 121, and a reinforcing plate 10, which is provided between the first cone 112 and the second cylinder 121, for reinforcing them.
In this embodiment, the atomizing device 5 includes an atomizing nozzle, the nozzle of the atomizing nozzle faces upward, and the nozzle of the atomizing nozzle faces in the same direction as the hot air, so as to further increase the contact time between the liquid droplets and the dust and hot air, and facilitate the formation of salt particles by drying. Further, the structure of the atomization device 5 can adopt an atomization structure commonly used in the prior art to realize the spray drying of the beta salt wastewater in the 2-naphthol production process.
In this embodiment, the atomizing device 5 is disposed at the lower part of the tower body 12 of the spray granulation section, so as to prolong the duration of the salt particles in the tower as much as possible, thereby improving the effect of separating the salt particles by their own weight.
In other embodiments, a 2-naphthol production system comprising the spray granulation tower for the treatment of 2-naphthol wastewater described above is also provided.
To sum up, the utility model discloses it is big with tail gas absorbing device operational load to be difficult to high-efficient and effectively collect atomizing salt granule and make rear end sack cleaner and tail gas absorption tower based on what current spray granulation tower exists, the poor scheduling problem of dust removal effect, innovatively, a modified spray granulation tower that 2-naphthol waste water treatment used is provided, its tower body structure through improving current spray granulation tower, and newly-increased cloth wind dish 7 that sets up in bottom segment tower body 13 and the heated air circulation mouth 6 of setting on bottom segment tower body 13, not only realized can reduce air velocity, realize granule and dust separation, and can cyclic utilization be hot-blast, increase liquid drop and dust, hot-blast contact time, provide more dust crystal nucleus, be favorable to the formation of salt granule, environmental variation and the jam problem that a large amount of salt granule and dust brought in having avoided the aftertreatment.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. A spray granulation tower for treating 2-naphthol wastewater comprises a tower body, a hot air inlet, a hot air outlet, a salt particle discharge port and an atomization device, and is characterized in that the tower body comprises a separation section tower body for separating salt particles and dust, a spray granulation section tower body for spray granulation and a bottom section tower body for supplying hot air and discharging, wherein the separation section tower body, the spray granulation section tower body and the bottom section tower body are sequentially arranged from top to bottom; the atomization device is arranged on the spray granulation section tower body, the hot air inlet and the salt particle discharge port are respectively arranged on the bottom section tower body, and the hot air outlet is arranged at the upper end part of the separation section tower body; the lower end part of the bottom section tower body is also provided with a hot air circulation port communicated with the hot air outlet, the bottom section tower body is internally provided with an air distribution disc which is used for dividing the bottom section tower body into an upper area and a lower area and allowing air to pass through, the hot air inlet and the salt particle discharge port are respectively positioned above the air distribution disc, and the hot air circulation port is positioned below the air distribution disc.
2. The spray granulation tower for treating 2-naphthol wastewater according to claim 1, wherein the salt particle outlet and the hot air circulation port are located on the same side of the bottom section tower body, the hot air inlet is located on the opposite side of the salt particle outlet, and the hot air inlet, the salt particle outlet and the hot air circulation port are sequentially arranged from top to bottom.
3. A spray granulation tower for the treatment of 2-naphthol wastewater according to claim 1, wherein the air distribution plate comprises a plate body, and a plurality of micro-pores formed on the plate body for allowing the passage of air and dust and preventing the passage of salt particles, the plurality of micro-pores being uniformly distributed on the plate body.
4. The spray granulation tower for treating 2-naphthol wastewater according to claim 1, wherein the separation-stage tower body, the spray granulation-stage tower body and the bottom-stage tower body are different in width.
5. The spray granulation tower for treating 2-naphthol wastewater according to claim 4, wherein the widths of the separation section tower body, the spray granulation section tower body and the bottom section tower body are gradually decreased.
6. The spray granulation tower for 2-naphthol wastewater treatment according to claim 1, wherein the height of the separation stage tower body is greater than the height of the bottom stage tower body and less than the height of the spray granulation stage tower body.
7. A spray granulation tower for the treatment of 2-naphthol wastewater according to claim 1, wherein the atomizing means comprises an atomizing nozzle having its orifice directed upward.
8. A spray granulation tower for 2-naphthol wastewater treatment according to claim 1, wherein the atomizing device is provided at a lower portion of the spray granulation section tower body.
9. The spray granulation tower for treating 2-naphthol wastewater according to claim 1, wherein the separation section tower body comprises a first barrel body and a first cone integrally formed with the first barrel body, the spray granulation section tower body comprises a second barrel body and a second cone integrally formed with the second barrel body, the first cone body, the second barrel body and the second cone body are sequentially arranged from top to bottom, the width of the first barrel body is greater than 1.2 times that of the second barrel body, and the second cone body is communicated with the bottom section tower body in a connecting manner.
10. A 2-naphthol production system comprising a spray granulation tower for treating 2-naphthol wastewater as set forth in any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120843485.6U CN214915816U (en) | 2021-04-22 | 2021-04-22 | Spray granulation tower for treating 2-naphthol wastewater and 2-naphthol production system |
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| CN202120843485.6U CN214915816U (en) | 2021-04-22 | 2021-04-22 | Spray granulation tower for treating 2-naphthol wastewater and 2-naphthol production system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055110A (en) * | 2022-04-12 | 2022-09-16 | 山东天力能源股份有限公司 | Granulating and drying system and method for preparing magnesium chloride dihydrate particles from magnesium chloride brine |
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2021
- 2021-04-22 CN CN202120843485.6U patent/CN214915816U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115055110A (en) * | 2022-04-12 | 2022-09-16 | 山东天力能源股份有限公司 | Granulating and drying system and method for preparing magnesium chloride dihydrate particles from magnesium chloride brine |
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