CN215692599U - Yellow phosphorus high-temperature furnace gas purification system - Google Patents
Yellow phosphorus high-temperature furnace gas purification system Download PDFInfo
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- CN215692599U CN215692599U CN202121058959.2U CN202121058959U CN215692599U CN 215692599 U CN215692599 U CN 215692599U CN 202121058959 U CN202121058959 U CN 202121058959U CN 215692599 U CN215692599 U CN 215692599U
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Abstract
The utility model belongs to the technical field of yellow phosphorus production equipment, and particularly relates to a yellow phosphorus high-temperature furnace gas purification system which comprises an electric furnace and a filter, wherein the upper end of the electric furnace is connected with the filter through a furnace gas pipeline, and a furnace gas heater is arranged on the furnace gas pipeline; the upper end of the filter is connected with the spray tower through a furnace gas induced draft fan; the filter is a filter cartridge type dust remover. Still include the nitrogen buffer tank, nitrogen buffer tank one end is connected with external nitrogen source, and the nitrogen buffer tank other end passes through the heater and is connected with filter upper end and lower extreme. The filter lower extreme is provided with middle ash can, and middle ash can lower extreme is provided with the star type tripper, and the star type tripper lower extreme is provided with the defeated grey machine of spiral. The utility model can realize safe and effective treatment of high-temperature furnace gas generated in yellow phosphorus production.
Description
Technical Field
The utility model belongs to the technical field of yellow phosphorus production equipment, and particularly relates to a yellow phosphorus high-temperature furnace gas purification system.
Background
At present, the production of yellow phosphorus by an electric furnace method is an advanced process for international and domestic yellow phosphorus production, phosphate ore, silica and coke dices are uniformly mixed according to a certain proportion and then are lifted to a material cabinet, and the mixture enters an electric furnace from a discharging pipe of the material cabinet. Converting electric energy into heat energy, and performing displacement reduction reaction at high temperature (about 1450 ℃) to generate elemental phosphorus P4And CO and phosphorus escape from the furnace together with impurities such as CO, dust and the like in a gaseous form, the gas enters a condensation tower through a gas guide pipe, the furnace gas is sprayed in the condensation tower by using circulating water used in production, phosphorus steam is condensed into a liquid state and enters a phosphorus receiving groove, and a large amount of dust is carried in the furnace gas and enters the phosphorus receiving groove to form crude phosphorus. The crude phosphorus enters a refining tank through siphonage, and is refined and rinsed by steam and hot water, and refined yellow phosphorus can be obtained after 24-48 hours. The furnace gas after washing is recovered by the condensing tower and is recycled after being purified by a tail gas system.
The yellow phosphorus production in China mainly adopts an electric furnace method, and in recent years, yellow phosphorus production enterprises have production accidents of fire, explosion, poisoning, environmental pollution and the like for many times, so that economic loss and casualties are caused. According to the main process and equipment conditions of yellow phosphorus production by an electric furnace method, the safety risk of the production process is analyzed, corresponding precautionary measures are provided, and reference are provided for yellow phosphorus enterprises to reduce production accidents.
The yellow phosphorus furnace gas after dust removal meets the index requirements of the national environmental protection department on the quality concentration of the discharged gas, for example, the dust content control index is 30mg/m specified in the thermal power plant atmospheric pollutant discharge Standard (GB 13223-2011) of China3And fromThe method is implemented from 1 month and 1 day of 2012.
Disclosure of Invention
In order to solve the technical problem, the utility model provides a yellow phosphorus high-temperature furnace gas purification system which can realize the treatment of high-temperature furnace gas in the yellow phosphorus production process.
The specific technical scheme is as follows: a yellow phosphorus high-temperature furnace gas purification system comprises an electric furnace and a filter, wherein the upper end of the electric furnace is connected with the filter through a furnace gas pipeline, and a furnace gas heater is arranged on the furnace gas pipeline (the electric heater is used for heating back-blowing gas and maintaining the back-blowing gas at a stable temperature); the upper end of the filter is connected with the spray tower through a furnace gas induced draft fan; the filter is a filter drum type dust remover, the filter drum type dust remover is a device similar to a bag-type dust remover, and a bag of the filter drum type dust remover is replaced by a metal filter drum. The furnace gas heater keeps the whole system at a stable temperature of 200-240 ℃. The induced draft fan ensures that the electric furnace completely extracts furnace gas under the micro-positive pressure state, and the furnace gas enters the filtering device for filtering. In order to ensure that the electric furnace normally operates under micro-positive pressure, a special fan is adopted for air extraction, air cannot enter a system in the air extraction process, the fan is subjected to frequency conversion regulation according to the pressure of the electric furnace, and an electric regulating valve is adopted for a backflow pipeline to work, so that the electric furnace is ensured to operate under the micro-positive pressure (50-300 Pa).
Further, still include the nitrogen buffer tank, nitrogen buffer tank one end is connected with external nitrogen gas source, and the nitrogen buffer tank other end passes through the heater and is connected with filter upper end and lower extreme. The nitrogen buffer tank effectively prevents air from entering the closed dust removal system.
Further, the filter lower extreme is provided with middle ash can, and middle ash can lower extreme is provided with the star type tripper, and star type tripper lower extreme is provided with the defeated grey machine of spiral. The intermediate ash tank, the star-shaped discharger and the spiral ash conveyer are systems for safely discharging dust.
Furnace gas enters a filter after being heated by a furnace gas heater from the upper end of the electric furnace, and under the filtering action of a metal filter cylinder of the filter, dust is settled and conveyed out of the spiral ash conveyor through an intermediate ash tank and a star-shaped discharger; and conveying the settled gas to a spray tower for spray absorption through a draught fan under the protection of nitrogen.
The dust removal efficiency of the yellow phosphorus electric furnace high-temperature furnace gas purification system is more than or equal to 99.9 percent, the purified dust is less than or equal to 30mg/Nm, and the purity of yellow phosphorus can reach 99.9 percent after furnace gas passes through the purification system. After the system is used for purification, the primary recovery rate of phosphorus can reach more than 85 percent, particularly, water and steam for refining a large amount of yellow phosphorus can be saved, and the problem that a large amount of phosphorus sludge is generated in the traditional yellow phosphorus production process is basically solved. When the yellow phosphorus device is newly built, the investment of a refining system and a sewage system can be greatly saved and reduced, the investment pressure of enterprises is reduced, good conditions are provided for production management, and great contribution is made to environmental protection.
Drawings
FIG. 1 is a schematic view of the present invention;
wherein, 1, an electric furnace; 2, a filter; 3 furnace gas heater; 4, a draught fan; 5, a spray tower; 6 a nitrogen buffer tank; 7 a heater; 8, an intermediate ash tank; 9, a star discharger; 10 spiral ash conveyer.
Detailed Description
The yellow phosphorus high-temperature furnace gas purification system shown in the figure 1 comprises an electric furnace 1 and a filter 2, wherein the upper end of the electric furnace 1 is connected with the filter 2 through a furnace gas pipeline, and a furnace gas heater 3 is arranged on the furnace gas pipeline;
the upper end of the filter 2 is connected with a spray tower 5 through a furnace gas induced draft fan 4; the filter 2 is a filter drum type dust remover, the filter drum type dust remover is a device similar to a bag-type dust remover, and a bag of the filter drum type dust remover is replaced by a metal filter drum. The furnace gas heater 3 keeps the whole system at a stable temperature of 200-240 ℃. The induced draft fan 4 ensures that the electric furnace completely extracts furnace gas in a micro-positive pressure state and enters a filtering device for filtering.
Further, still include nitrogen buffer tank 6, 6 one end of nitrogen buffer tank are connected with external nitrogen source, and 6 other ends of nitrogen buffer tank pass through heater 7 and are connected with filter 2 upper end and lower extreme. The nitrogen buffer tank 6 effectively prevents air from entering the closed dust removal system.
Further, the lower end of the filter 2 is provided with a middle ash tank 8, the lower end of the middle ash tank 8 is provided with a star-shaped discharger 9, and the lower end of the star-shaped discharger 9 is provided with a spiral ash conveyor 10. The intermediate ash tank, the star-shaped discharger and the spiral ash conveyer are systems for safely discharging dust.
Claims (3)
1. A yellow phosphorus high-temperature furnace gas purification system comprises an electric furnace and is characterized by also comprising a filter, wherein the upper end of the electric furnace is connected with the filter through a furnace gas pipeline, and a furnace gas heater is arranged on the furnace gas pipeline;
the upper end of the filter is connected with the spray tower through a furnace gas induced draft fan; the filter is a filter cartridge type dust remover.
2. The yellow phosphorus high-temperature furnace gas purification system as claimed in claim 1, further comprising a nitrogen buffer tank, wherein one end of the nitrogen buffer tank is connected with an external nitrogen source, and the other end of the nitrogen buffer tank is connected with the upper end and the lower end of the filter through a heater.
3. The yellow phosphorus high-temperature furnace gas purification system as claimed in claim 2, wherein the lower end of the filter is provided with an intermediate ash tank, the lower end of the intermediate ash tank is provided with a star-shaped discharger, and the lower end of the star-shaped discharger is provided with a spiral ash conveyer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121058959.2U CN215692599U (en) | 2021-05-18 | 2021-05-18 | Yellow phosphorus high-temperature furnace gas purification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121058959.2U CN215692599U (en) | 2021-05-18 | 2021-05-18 | Yellow phosphorus high-temperature furnace gas purification system |
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| CN215692599U true CN215692599U (en) | 2022-02-01 |
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| CN202121058959.2U Active CN215692599U (en) | 2021-05-18 | 2021-05-18 | Yellow phosphorus high-temperature furnace gas purification system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114931812A (en) * | 2022-06-22 | 2022-08-23 | 科林环保技术有限责任公司 | Yellow phosphorus production system and working method thereof |
| 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 |
| CN115212671A (en) * | 2022-06-29 | 2022-10-21 | 成都易态科技有限公司 | Ash discharge method, ash discharge system and yellow phosphorus flue gas purification system |
| CN115212670A (en) * | 2022-06-29 | 2022-10-21 | 成都易态科技有限公司 | Industrial kiln flue gas purification device and yellow phosphorus flue gas purification system |
| 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 |
-
2021
- 2021-05-18 CN CN202121058959.2U patent/CN215692599U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114931812A (en) * | 2022-06-22 | 2022-08-23 | 科林环保技术有限责任公司 | Yellow phosphorus production system and working method thereof |
| CN115212671A (en) * | 2022-06-29 | 2022-10-21 | 成都易态科技有限公司 | Ash discharge method, ash discharge system and yellow phosphorus flue gas purification system |
| CN115212670A (en) * | 2022-06-29 | 2022-10-21 | 成都易态科技有限公司 | Industrial kiln flue gas purification device and yellow phosphorus flue gas purification system |
| CN115212670B (en) * | 2022-06-29 | 2023-07-04 | 成都易态科技有限公司 | Industrial kiln flue gas purification device and yellow phosphorus flue gas purification system |
| CN115212671B (en) * | 2022-06-29 | 2023-07-04 | 成都易态科技有限公司 | Ash discharging method, ash discharging system and yellow phosphorus flue gas purifying system |
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