CN211896044U - Circulating device for spraying yellow phosphorus furnace gas and yellow phosphorus furnace gas condensation system - Google Patents
Circulating device for spraying yellow phosphorus furnace gas and yellow phosphorus furnace gas condensation system Download PDFInfo
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- CN211896044U CN211896044U CN202020132458.3U CN202020132458U CN211896044U CN 211896044 U CN211896044 U CN 211896044U CN 202020132458 U CN202020132458 U CN 202020132458U CN 211896044 U CN211896044 U CN 211896044U
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Abstract
The patent of the utility model relates to a circulating device, yellow phosphorus burner gas condensing system that are used for yellow phosphorus burner gas to spray. A circulating device for yellow phosphorus furnace gas sprays includes: the inlet end and the output end are communicated with the spray tower; the inlet end is communicated with the output end through a cooling channel for cooling the spraying liquid and is used for conveying the spraying liquid pumped out from the inlet end to the output end; the inlet end, the cooling channel and the output end are used for forming a first closed circulation loop with the spray tower. The yellow phosphorus furnace gas condensation system comprises the circulating device for spraying the yellow phosphorus furnace gas, and the yellow phosphorus furnace gas condensation system also comprises a dry dust removal device for filtering the yellow phosphorus furnace gas; the exhaust port of the dry dust removal device is communicated with the air inlet of the spraying device. By arranging the dry dust removal device to filter the yellow phosphorus furnace gas, the filtered yellow phosphorus furnace gas can form cleaner liquid yellow phosphorus after being sprayed.
Description
Technical Field
The patent of the utility model relates to a circulating device, yellow phosphorus burner gas condensing system that are used for yellow phosphorus burner gas to spray.
Background
The furnace gas of the existing electrothermal yellow phosphorus electric furnace adopts the process of directly washing furnace gas containing phosphorus steam, dust and coal gas by water so as to obtain crude phosphorus, and then refining the crude phosphorus to obtain the product phosphorus. Because the coarse phosphorus washed by water and the water contain more dust, the water in the coarse phosphorus washed by water cannot be directly pumped out for circulating and repeatedly spraying, and a large amount of water is consumed in the spraying process. At present, a device or a system for recycling spraying liquid after spraying yellow phosphorus furnace gas does not exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a circulating device that yellow phosphorus burner gas that is used for carrying out cyclic utilization with the liquid that sprays on liquid yellow phosphorus upper strata after subsiding sprays.
In order to achieve the above object, the present application adopts a technical solution that a circulating device for spraying yellow phosphorus furnace gas is configured in a yellow phosphorus furnace gas condensing system for performing dry dust removal on yellow phosphorus furnace gas when in use, and the circulating device comprises:
the inlet end is communicated with a component for collecting the liquid yellow phosphorus settled in the spray tower and is used for pumping out the spray liquid on the upper layer of the liquid yellow phosphorus;
the output end is used for being communicated with a spraying device of the spraying tower and conveying spraying liquid to the spraying device in the spraying tower;
the inlet end is communicated with the output end through a cooling channel for cooling the spraying liquid and is used for conveying the spraying liquid pumped out from the inlet end to the output end; after being cooled by the cooling channel, the temperature can be reduced to 40-70 ℃;
the inlet end, the cooling channel and the output end are used for forming a first closed circulation loop with the spray tower.
Through setting up foretell circulating device that yellow phosphorus burner gas sprayed, when the spray liquid after spraying floats in liquid yellow phosphorus upper strata, accessible suction device such as liquid pump lets spray liquid get into cooling channel from foretell entry end, after cooling the spray liquid in cooling channel through modes such as heat transfer, cooling etc. get into the output and get into the spray set of spray column at this output, spray once more promptly to through being used for with spray the turriform with entry end, cooling channel, output and become confined circulation circuit, realized the clean production at this yellow phosphorus goods production processes simultaneously.
Further, the spray tower comprises a first-stage spray tower and a second-stage spray tower which are sequentially connected in series on the flow path of the yellow phosphorus furnace gas;
the first stage spray tower is communicated with a part of the cooling channel through which the higher temperature spray liquid passes through a pipeline with a valve;
the second stage spray tower is communicated with the part of the cooling channel through which the low-temperature spray liquid passes through by a pipeline with a valve.
Specifically, the cooling channel is provided with at least one output node for conveying the spray liquid from the inlet end to the output end; each output node is provided with a valve for controlling the opening and closing of the output node.
Further, the circulating device for spraying the yellow phosphorus furnace gas further comprises a closed second circulating loop which is used for intersecting the first circulating loop at the cooling channel, and the second circulating loop is used for exchanging heat with the cooling channel.
Specifically, the second circulation loop mainly comprises a water cooling tower and a circulation pipe;
one end of the circulating pipe is connected with a water outlet of the water cooling tower, and the other end of the circulating pipe is connected with a water inlet of the water cooling tower;
the cooling channel is positioned in the water cooling tower.
Further, the water cooling tower comprises a heat exchange cavity positioned above and a collecting pool positioned below;
the cooling channel is positioned in the heat exchange cavity;
the water inlet is positioned above the cooling channel;
the water outlet is communicated with the collecting tank;
and the circulating pipe is provided with a circulating pump for conveying the collected fluid to the heat exchange cavity.
Furthermore, the cooling channels are coils distributed along the gravity direction of the heat exchanger so as to more fully exchange heat.
Furthermore, a component for collecting the liquid yellow phosphorus settled in the spray tower is a settling tank, and an overflow valve is arranged on the settling tank.
The utility model also provides a yellow phosphorus burner gas condensing system which can smoothly recycle the spray liquid on the upper layer of the settled liquid yellow phosphorus after filtering the yellow phosphorus burner gas, comprising the circulating device for spraying the yellow phosphorus burner gas, and the yellow phosphorus burner gas condensing system also comprises a dry dust removal device for filtering the yellow phosphorus burner gas; the exhaust port of the dry dust removal device is communicated with the air inlet of the spray device;
the dry dust removal device ensures that the dust content of the filtered yellow phosphorus furnace gas is less than or equal to 20mg/Nm3The dust removing device of (1); or the dry dust removal device ensures that the dust content of the filtered yellow phosphorus furnace gas is less than or equal to 10mg/Nm3The dust removing device of (1); or the dry dust removal device ensures that the dust content of the filtered yellow phosphorus furnace gas is less than or equal to 5mg/Nm3The dust removing device.
By arranging the dry dust removal device to filter the yellow phosphorus furnace gas, the filtered yellow phosphorus furnace gas can form cleaner liquid yellow phosphorus after being sprayed.
Further, the dry dust removal device is a dust removal device for intercepting and removing dust by a filter element.
Furthermore, the air inlet end of the dry dust removal device is connected with a heating device.
The utility model also provides a yellow phosphorus burner gas condensation method that is favorable to airtight realization clean production yellow phosphorus product, makes spray liquid can cyclic utilization, including following step:
filtering the yellow phosphorus furnace gas to ensure that the dust content of the yellow phosphorus furnace gas is less than or equal to 20mg/Nm3；
Spraying and cooling the filtered yellow phosphorus furnace gas to enable the yellow phosphorus furnace gas to form liquid yellow phosphorus and a water phase;
and extracting the water phase part to be used as cooling water for spraying the filtered yellow phosphorus furnace gas.
By adopting the method, the cyclic utilization of the spraying liquid can be realized in the yellow phosphorus spraying process, and the clean production is realized.
The present invention will be further described with reference to the accompanying drawings and the detailed description. Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description. Or may be learned by practice of the invention.
Drawings
The accompanying drawings, which form a part of the disclosure, are included to assist in understanding the disclosure, and the description provided herein and the accompanying drawings, which are related thereto, are intended to explain the disclosure, but do not constitute an undue limitation on the disclosure.
In the drawings:
FIG. 1 is a schematic view for explaining a yellow phosphorus furnace gas condensing system of the present invention;
labeled as: 1-inlet end, 2-output end, 3-cooling channel, 320-first liquid pump, 310-output node, 4-spray tower, first stage spray tower 4a, second stage spray tower 4b, 410-sedimentation tank, 5-water cooling tower, 510-heat exchange cavity, 520-collection tank, 6-circulation pipe, 610-second liquid pump, 7-dry dedusting device, 8-electric furnace, 9-blower, 10-heating device, 11-overflow valve.
Detailed Description
The present invention will be described more fully with reference to the accompanying drawings. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Before the present invention is described with reference to the accompanying drawings, it is to be noted that:
the technical solutions and features provided in the present invention in each part including the following description may be combined with each other without conflict.
Moreover, the embodiments of the invention described in the following description are generally only examples of a subset of the invention, and not all examples. Therefore, all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.
With respect to the terms and units of the present invention. The term "comprises" and any variations thereof in the description and claims of this invention and the related art are intended to cover non-exclusive inclusions.
As shown in fig. 1, in the first embodiment:
a circulating device for yellow phosphorus furnace gas sprays includes:
an inlet end 1, wherein the inlet end 1 is used for being communicated with a component for collecting liquid yellow phosphorus settled in a spray tower 4, and is used for extracting spray liquid on the upper layer of the liquid yellow phosphorus; the component for collecting the liquid yellow phosphorus settled in the spray tower 4 is a settling tank 410 below the spray tower 4;
the output end 2 is used for being communicated with a spraying device of the spraying tower 4 and used for conveying spraying liquid to the spraying device in the spraying tower 4;
the inlet end 1 is communicated with the output end 2 through a cooling channel 3 for cooling the spraying liquid, and the spraying liquid pumped out from the inlet end 1 is conveyed to the output end 2;
the inlet end 1, the cooling channel 3 and the output end 2 are used for forming a closed first circulation loop with the spray tower 4.
Yellow phosphorus furnace gas output from an electric furnace 8 enters a spray tower 4 under the action of a fan 9, when sprayed spray liquid floats on the upper layer of liquid yellow phosphorus, the spray liquid enters a cooling channel 3 from an inlet end 1 through a suction device of a first liquid pump 320, enters an output end 2 and enters a spray device of the spray tower 4 at the output end 2, namely, spraying is carried out again, and the inlet end 1, the cooling channel 3 and the output end 2 are used for forming a closed circulation loop with the spray tower 4, so that clean production in the production process of yellow phosphorus products is realized.
Example two:
on the basis of the first embodiment, the spray tower 4 comprises a first-stage spray tower 4a and a second-stage spray tower 4b which are sequentially connected in series on the flow path of the yellow phosphorus furnace gas;
the first-stage spray tower 4a is communicated with a part of the cooling channel through which the higher-temperature spray liquid passes through by a pipeline with a valve;
the second-stage spray tower 4b is communicated with a part of the cooling channel through which the low-temperature spray liquid passes through by a pipeline with a valve.
The first stage spray tower 4a is composed of two spray tower units communicated with each other at the upper part, the second stage spray tower 4b is composed of one spray tower unit, and furnace gas is sprayed from the first stage spray tower 4a and then flows from the sedimentation tank 410 to the second stage spray tower 4b for spraying.
Specifically, the cooling channel 3 is provided with an output node 310 for delivering the spray liquid from the inlet end 1 to the output end 2; each of the output nodes 310 is provided with a valve for controlling the opening and closing of the output node 310. That is, in addition to being connected to the output end 2 at the outlet end of the cooling passage 3, an output node 310 is further provided at the middle section of the cooling passage 3, and the higher the required temperature is, the closer the output node 310 is to the inlet end 1 on the cooling passage 3, the lower the required temperature is, and the closer the output node 310 is to the inlet end 1. The number of output nodes 310 is set as desired.
Set up a plurality of output node 310 like this, because the cooling time that sprays the liquid process in the passageway that output node 310 of different positions corresponds is different, causes the temperature difference of the liquid that sprays in different sections, and the liquid temperature that sprays of output can pass through control flap from this, the output of the liquid that sprays of control different temperatures, the liquid temperature that sprays of nimble control output 2 output.
Namely, the outlet end at the tail end of the cooling channel 3 of the circulating device can reduce the temperature of the spray liquid to 40-60 ℃, the temperature of the spray liquid output by the output node 310 of the part (a certain part in the middle section of the cooling channel 3) through which the spray liquid with the medium and high temperature passes is reduced to 50-70 ℃, namely, the spray liquid with the temperature of 40-60 ℃ is connected to the spray device of the second-stage spray tower 4b through the outlet end at the tail end of the cooling channel 3, and the spray liquid with the temperature of 50-70 ℃ is connected to the spray device of the second-stage spray tower 4b through the pipeline of the output node 310, so that the temperature of the output spray liquid can be selected, and the yellow phosphorus furnace gas in the spray towers with different levels can be correspondingly. This can be achieved by controlling the valve connected to the output node 310 and the valve connected to the outlet end of the cooling passage 3.
Example three:
on the basis of the first or second embodiment, the circulating device for spraying yellow phosphorus furnace gas further comprises a closed second circulating loop which is used for intersecting the first circulating loop at the cooling channel 3 and is used for exchanging heat with the cooling channel 3.
Specifically, the second circulation loop mainly comprises a water cooling tower 5 and a circulation pipe 6;
one end of the circulating pipe 6 is connected with a water outlet of the water cooling tower 5, and the other end is connected with a water inlet of the water cooling tower 5;
the cooling channel 3 is located in a cooling tower 5.
By arranging the second circulation loop which is also closed, a double circulation system is formed, and the condensation of the yellow phosphorus steam and the transfer of the condensation heat are realized and are relatively independent.
The water cooling tower 5 comprises a heat exchange cavity 510 positioned at the upper part and a collecting tank 520 positioned at the lower part;
the cooling channel 3 is located in the heat exchange chamber 510;
the water inlet is positioned above the cooling channel 3;
the water outlet is communicated with the collecting tank 520;
the circulation pipe 6 is provided with a second liquid pump 610 for delivering the fluid from the collecting tank 520 to the heat exchange chamber 510.
The cooling liquid in the water cooling tower 5 is pumped into the circulating pipe 6 by the second liquid pump from the collecting tank 520 below, the cooling liquid flows out from the water inlet and is sprayed to the cooling channel 3, the spraying liquid in the cooling channel 3 is cooled, and the cooling liquid absorbing part of heat in the spraying liquid is collected by the collecting tank 520 again.
Example four:
on the basis of the third embodiment, the cooling channel 3 is a coil distributed along the gravity direction of the heat exchanger to perform heat exchange more fully.
Example five:
on the basis of the above embodiment, the overflow valve 11 is arranged on the sedimentation tank 410 of the circulating device for spraying yellow phosphorus furnace gas, and when the liquid accumulation in the sedimentation tank 410 exceeds a preset value (when the pressure is too large), liquid yellow phosphorus is discharged, so that the liquid level in the sedimentation tank 410 is always kept in the preset value or the preset range.
Specifically, the overflow valve 11 may be disposed at the lower part or the side part of the sedimentation basin 410, or may be disposed at both the lower part and the side part individually.
By adopting the circulating device for spraying the yellow phosphorus furnace gas, a yellow phosphorus furnace gas condensation system which can filter the yellow phosphorus furnace gas and enable the spray liquid on the upper layer of the settled liquid yellow phosphorus to be smoothly recycled can be obtained, and the yellow phosphorus furnace gas condensation system comprises the circulating device for spraying the yellow phosphorus furnace gas and also comprises a dry dust removal device 7 for filtering the yellow phosphorus furnace gas; the exhaust port of the dry dust removal device 7 is used for being communicated with the air inlet of the spraying device.
By arranging the dry dust removal device 7 to filter the yellow phosphorus furnace gas, the filtered yellow phosphorus furnace gas can form cleaner liquid yellow phosphorus after being sprayed.
The dry dust removal device 7 ensures that the dust content of the filtered yellow phosphorus furnace gas is less than or equal to 20mg/Nm3The dust removing device can also be less than or equal to 10mg/Nm3Or less than or equal to 5mg/Nm3The dust removing device can be a dry filtering device with a dry porous inorganic filtering material as a filter element. The dust content of the yellow phosphorus furnace gas is less than or equal to 20mg/Nm3Then, the spraying liquid floating on the liquid yellow phosphorus can be smoothly recycled.
Preferably, a heating device 10 is connected to the air inlet end of the dry dust removing device 7. The heating device can adopt an electric heating device and also can adopt a heat exchange device for outputting heat.
The embodiment also provides a yellow phosphorus furnace gas condensation method which is beneficial to realizing the clean production of yellow phosphorus products in a closed way and enables the spray liquid to be recycled, and the method comprises the following steps:
filtering the yellow phosphorus furnace gas to ensure that the yellow phosphorus furnace gasDust content is less than or equal to 20mg/Nm3；
Spraying and cooling the filtered yellow phosphorus furnace gas to enable the yellow phosphorus furnace gas to form liquid yellow phosphorus and a water phase;
and extracting the water phase part to be used as cooling water for spraying the filtered yellow phosphorus furnace gas.
By adopting the method, the cyclic utilization of the spraying liquid can be realized in the yellow phosphorus spraying process, and the clean production is realized.
Specifically, clean furnace gas (dust content less than or equal to 20 mg/Nm) is obtained after the furnace gas of the electric heating yellow phosphorus electric furnace is dedusted by a dry filtering device with a dry porous inorganic filtering material as a filter element3) The furnace gas enters a spray tower 4, and spray water is used for condensation and temperature reduction in the spray tower 4, so that the gaseous phosphorus steam is converted into liquid yellow phosphorus. Because the dust content of the furnace gas is low, liquid yellow phosphorus and a water phase are formed after spraying. After the condensed water is settled by the spray tower 4, the clear water on the upper layer is pumped into the coil-shaped cooling channel 3 in the water cooling tower 5 by a pump, indirect heat exchange is carried out in the water cooling tower 5, the spray liquid after heat exchange enters the spray tower 4 through the output node 310 in temperature intervals, and the circulating cooling of the spray tower 4 is realized. The water cooling tower 5 is cooled by self-circulation.
The contents of the present invention have been explained above. Those of ordinary skill in the art will be able to implement the invention based on these descriptions. Based on the above-mentioned contents of the present invention, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Claims (10)
1. A circulating device for yellow phosphorus burner gas sprays, dispose in the yellow phosphorus burner gas condensing system that carries out dry process dust removal to yellow phosphorus burner gas during the use, its characterized in that, this circulating device includes:
the inlet end is communicated with a component for collecting the liquid yellow phosphorus settled in the spray tower and is used for pumping out the spray liquid on the upper layer of the liquid yellow phosphorus;
the output end is used for being communicated with a spraying device of the spraying tower and conveying spraying liquid to the spraying device in the spraying tower;
the inlet end is communicated with the output end through a cooling channel for cooling the spraying liquid and is used for conveying the spraying liquid pumped out from the inlet end to the output end;
the inlet end, the cooling channel and the output end are used for forming a first closed circulation loop with the spray tower.
2. The circulating device for yellow phosphorus furnace gas spraying of claim 1, characterized in that:
the spray tower comprises a first-stage spray tower and a second-stage spray tower which are sequentially connected in series on the flow path of the yellow phosphorus furnace gas;
the first stage spray tower is communicated with a part of the cooling channel through which the higher temperature spray liquid passes through a pipeline with a valve;
and the second-stage spray tower is communicated with a part of the cooling channel through which the low-temperature spray liquid passes through by a pipeline with a valve.
3. The circulating device for yellow phosphorus furnace gas spraying of claim 1, characterized in that:
the circulating device for spraying the yellow phosphorus furnace gas further comprises a closed second circulating loop which is used for intersecting the first circulating loop at the cooling channel, and the second circulating loop is used for exchanging heat with the cooling channel.
4. The circulating device for yellow phosphorus furnace gas spraying of claim 3, characterized in that:
the second circulation loop mainly comprises a water cooling tower and a circulation pipe;
one end of the circulating pipe is connected with a water outlet of the water cooling tower, and the other end of the circulating pipe is connected with a water inlet of the water cooling tower;
the cooling channel is positioned in the water cooling tower.
5. The circulating device for yellow phosphorus furnace gas spraying of claim 4, characterized in that:
the water cooling tower comprises a heat exchange cavity positioned above and a collecting tank positioned below;
the cooling channel is positioned in the heat exchange cavity;
the water inlet is positioned above the cooling channel;
the water outlet is communicated with the collecting tank;
and the circulating pipe is provided with a circulating pump for conveying the collecting pond to the heat exchange cavity.
6. The circulating device for yellow phosphorus furnace gas spraying of claim 5, characterized in that:
and the cooling channels are distributed along the gravity direction of the heat exchanger.
7. The circulating device for yellow phosphorus furnace gas spraying of claim 1, characterized in that:
the component for collecting the liquid yellow phosphorus settled in the spray tower is a settling tank, and an overflow valve is arranged on the settling tank.
8. The yellow phosphorus furnace gas condensation system is characterized by comprising the circulating device for spraying yellow phosphorus furnace gas as claimed in any one of claims 1 to 7, and further comprising a dry dust removal device for filtering the yellow phosphorus furnace gas; the exhaust port of the dry dust removal device is communicated with the air inlet of the spray device;
the dry dust removal device ensures that the dust content of the filtered yellow phosphorus furnace gas is less than or equal to 20mg/Nm3The dust removing device of (1); or the dry dust removal device ensures that the dust content of the filtered yellow phosphorus furnace gas is less than or equal to 10mg/Nm3The dust removing device of (1); or the dry dust removal device ensures that the dust content of the filtered yellow phosphorus furnace gas is less than or equal to 5mg/Nm3The dust removing device.
9. The yellow phosphorus furnace gas condensation system of claim 8, wherein the dry dust removal device is a dust removal device for intercepting and removing dust by a filter element.
10. The yellow phosphorus furnace gas condensation system of claim 8, wherein a heating device is connected to the gas inlet end of the dry dust removal device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020132458.3U CN211896044U (en) | 2020-01-20 | 2020-01-20 | Circulating device for spraying yellow phosphorus furnace gas and yellow phosphorus furnace gas condensation system |
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| CN202020132458.3U CN211896044U (en) | 2020-01-20 | 2020-01-20 | Circulating device for spraying yellow phosphorus furnace gas and yellow phosphorus furnace gas condensation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056541A (en) * | 2020-01-20 | 2020-04-24 | 成都易态科技有限公司 | Circulating device for spraying yellow phosphorus furnace gas, yellow phosphorus furnace gas condensation system and method |
| CN114644323A (en) * | 2020-12-17 | 2022-06-21 | 中节能工业节能有限公司 | Dust-removing phosphorus-collecting system and dust-removing phosphorus-collecting method |
| CN115164605A (en) * | 2022-06-14 | 2022-10-11 | 成都易态科技有限公司 | Yellow phosphorus flue gas purification system and industrial kiln flue gas purification device |
| CN115371445A (en) * | 2022-06-14 | 2022-11-22 | 成都易态科技有限公司 | Yellow phosphorus flue gas purification system and industrial kiln flue gas purification device |
-
2020
- 2020-01-20 CN CN202020132458.3U patent/CN211896044U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111056541A (en) * | 2020-01-20 | 2020-04-24 | 成都易态科技有限公司 | Circulating device for spraying yellow phosphorus furnace gas, yellow phosphorus furnace gas condensation system and method |
| CN114644323A (en) * | 2020-12-17 | 2022-06-21 | 中节能工业节能有限公司 | Dust-removing phosphorus-collecting system and dust-removing phosphorus-collecting method |
| CN114644323B (en) * | 2020-12-17 | 2023-11-28 | 中节能工业节能有限公司 | Dust-removing and phosphorus-collecting system and dust-removing and phosphorus-collecting method |
| CN115164605A (en) * | 2022-06-14 | 2022-10-11 | 成都易态科技有限公司 | Yellow phosphorus flue gas purification system and industrial kiln flue gas purification device |
| CN115371445A (en) * | 2022-06-14 | 2022-11-22 | 成都易态科技有限公司 | Yellow phosphorus flue gas purification system and industrial kiln flue gas purification device |
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