Burner gas condensing unit for preparing element phosphor by electric furnace process

A technology of condensing device and electric furnace method, applied in the direction of phosphorus preparation, climate sustainability, sustainable manufacturing/processing, etc., can solve problems such as short residence time, low recovery rate of elemental phosphorus, difficulty in meeting emission factors, etc., and achieve reduction Dust content, increase recovery rate, and increase the effect of residence time

Inactive Publication Date: 2009-02-25
云南澄江冶钢集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, a device with one furnace and three towers is used for the condensation of phosphorus furnace gas. The phosphorus-containing steam furnace gas enters three series-connected condensation towers, and the spray water is sprayed from the top of the tower, and the elements in the furnace gas are recovered by condensing phosphorus steam in the tower. Phosphorus is collected in the phosphorus receiving tank, and the crude phosphorus is regularly put into the refining tank for further separation into mud phosphorus and finished yellow phosphorus. The recovery rate is low, the furnace gas contains a lot of dust, and the emission factor is difficult to meet the standard

Method used

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  • Burner gas condensing unit for preparing element phosphor by electric furnace process
  • Burner gas condensing unit for preparing element phosphor by electric furnace process
  • Burner gas condensing unit for preparing element phosphor by electric furnace process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 and 2 As shown, the condensing device for the furnace gas in the preparation of element phosphorus by the electric furnace method mainly includes a condensation tower 1, a phosphorus receiving tank 2, an air guide pipe 3, and an emptying pipe 4. There are holes on the phosphorus receiving tank 2, and the phosphorus receiving tank 2 There are 2 condensation towers and 1 is 4 in series, the air guide pipe 3 is connected with the lower end of the first tower A, the tower A is connected with the top of tower B, the tower B is connected with the bottom of tower C, the tower C is connected with the top of tower D, and the tail gas is discharged 4 Tower A and tower D are located in the same phosphorus receiving tank 2. If there is no communication between tower A and tower D, there is a baffle plate 5 that is sealed and connected with phosphorus receiving tank 2 to isolate tower A and tower D. The lower communication channel between tower B and tower C is loc...

Embodiment 2

[0020] Such as figure 2 As shown, the condensing device for the furnace gas in the preparation of element phosphorus by the electric furnace method mainly includes a condensation tower 1, a phosphorus receiving tank 2, an air guide pipe 3, and an emptying pipe 4. There are holes on the phosphorus receiving tank 2, and the phosphorus receiving tank 2 It is one, the air guide pipe 3 is connected to the first tower A, the emptying pipe 4 is connected to the tail tower F, and the condensation tower 1 is 6 in series, tower A and tower B, tower C and tower D, tower E and tower F are all on the top China Unicom, between tower A and tower B, tower C and tower D, tower E and tower F, there are baffles and phosphorus receiving tanks sealed connection, between tower B and tower C, tower D and tower C are all through the phosphorus receiving tank Download China Unicom. All the other are with embodiment 1.

Embodiment 3

[0022] Such as Figure 4 As shown, the condensing device for the furnace gas in the preparation of element phosphorus by the electric furnace method mainly includes a condensation tower 1, a phosphorus receiving tank 2, an air guide pipe 3, and an emptying pipe 4. There are holes on the phosphorus receiving tank 2, and the phosphorus receiving tank 2 One, condensing tower 1 is 7 in series, tower A and tower B, tower C and tower D, tower E and tower F are all connected upwards, tower B and tower C, tower D and tower C, tower F and tower G The bottom of tower A communicates with one phosphorus receiving tank separately through three phosphorus receiving tanks. All the other are with embodiment 1.

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Abstract

A device for condensing furnace gas in the process of generating element phosphorus by an electric furnace process relates to a method for producing the element phosphorous, in particular to a device for condensing and decomposing the furnace gas in the process of generating element phosphorus by an electric furnace process. The device comprises condensing towers, phosphorous receiving tanks, a gas guide tube and an exhaust tube, and is characterized in that: the number of the condensing towers is at least four, the number of the phosphorous receiving tanks is 1-4, two adjacent condensing towers are alternately connected in a top communication way and in a bottom communication way, the bottom of the condensing towers is communicated with the phosphorous receiving tank, the head tower of the condensing towers is communicated with the gas guide tube, and the tail tower is communicated with the exhaust pipe. The device has reasonable structure, prolongs residence time of the furnace gas, increases recovery rate and reduces dust-laden factors in the furnace gas, thus achieving the purpose of energy saving and environment protection.

Description

technical field [0001] The invention relates to a production method of elemental phosphorus, in particular to equipment for condensing and decomposing furnace gas in the preparation of elemental phosphorus by an electric furnace method. Background technique [0002] The production of elemental phosphorus by the electric furnace method is to add the mixed charge of phosphate rock, silica and coke into the electric furnace, and heat the charge to 1300-1500°C by electric energy, so that the charge is melted to produce decomposition and reduction reactions, and the elemental phosphorus is sublimated to form a phosphorus-containing furnace. gas, which is then condensed to separate out elemental phosphorus. At present, a device with one furnace and three towers is used for the condensation of phosphorus furnace gas. The phosphorus-containing steam furnace gas enters three series-connected condensation towers, and the spray water is sprayed from the top of the tower, and the elemen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/02
CPCY02P20/10
Inventor 周喜胡宝荣
Owner 云南澄江冶钢集团有限公司
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