CN117244683A - FeCl of low-temperature chlorination furnace 3 Collecting device and collecting method - Google Patents
FeCl of low-temperature chlorination furnace 3 Collecting device and collecting method Download PDFInfo
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- CN117244683A CN117244683A CN202311209132.0A CN202311209132A CN117244683A CN 117244683 A CN117244683 A CN 117244683A CN 202311209132 A CN202311209132 A CN 202311209132A CN 117244683 A CN117244683 A CN 117244683A
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- Prior art keywords
- fecl
- magnetic field
- pipeline
- chlorination furnace
- temperature chlorination
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- 238000005660 chlorination reaction Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000002893 slag Substances 0.000 claims description 37
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 22
- 230000001105 regulatory effect Effects 0.000 claims description 20
- 238000007599 discharging Methods 0.000 claims description 19
- 238000004062 sedimentation Methods 0.000 claims description 18
- 238000003860 storage Methods 0.000 claims description 15
- 239000003546 flue gas Substances 0.000 claims description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 12
- 229910052757 nitrogen Inorganic materials 0.000 claims description 11
- 238000002386 leaching Methods 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 6
- 239000013049 sediment Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 35
- 229910052742 iron Inorganic materials 0.000 abstract description 15
- 239000007790 solid phase Substances 0.000 abstract description 11
- 238000009833 condensation Methods 0.000 abstract description 7
- 230000005494 condensation Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- 238000004064 recycling Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 description 2
- 206010033799 Paralysis Diseases 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- MRHSJWPXCLEHNI-UHFFFAOYSA-N [Ti].[V].[Fe] Chemical compound [Ti].[V].[Fe] MRHSJWPXCLEHNI-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- SZVJSHCCFOBDDC-UHFFFAOYSA-N iron(II,III) oxide Inorganic materials O=[Fe]O[Fe]O[Fe]=O SZVJSHCCFOBDDC-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G49/00—Compounds of iron
- C01G49/10—Halides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/30—Combinations with other devices, not otherwise provided for
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Abstract
The invention discloses a FeCl of a low-temperature chlorination furnace 3 The collecting device comprises a first magnetic field, a traction pipeline and a second magnetic field; the first magnetic field is arranged in an expansion section of the low-temperature chlorination furnace body; the traction pipeline is arranged on the side surface of the expansion section of the low-temperature chlorination furnace body, the second magnetic field is arranged in the traction pipeline, and the magnetic field intensity of the second magnetic field is higher than that of the first magnetic field; the device also comprises a collecting device which is arranged at the outlet of the traction pipeline and is used for collecting FeCl 3 . The invention relates to a low-temperature chlorination furnace FeCl 3 Collecting device capable of collecting FeCl chlorinated in low-temperature chlorination furnace 3 And iron-containing solid phase material for preventing FeCl 3 Entering the subsequent TiCl 4 The condensation and collection procedure of the method not only can ensure the normal operation of the condensation and collection procedure, but also can improve the recovery of TiUtilization efficiency.
Description
Technical Field
The invention relates to the technical field of fluidization chloridizing roasting, in particular to a low-temperature chloridizing furnace FeCl 3 A collecting device and a collecting method.
Background
The vanadium-titanium-iron concentrate produced in Panxi area contains a certain amount of TiO 2 And Fe (Fe) 2 O 3 The blast furnace slag is wasted after the blast furnace smelting, the Fe content in the blast furnace slag is influenced by the blast furnace smelting process, the Fe content can reach 13%, a large amount of valuable resources can not be fully utilized, and the comprehensive utilization efficiency of titanium and iron resources in vanadium titano-magnetite in Panxi area is greatly influenced.
At present, research and development personnel develop a great deal of researches on the technology of extracting titanium from blast furnace slag, and form' high-temperature carbonization reduction of blast furnace slag, and TiCl is generated by low-temperature selective chlorination 4 "Process flow". TiO of the current low-temperature selective chlorination process 2 The comprehensive chlorination efficiency is 60% -70%, and the chlorination rate of Fe element can reach more than 98%. In the existing low-temperature selective chlorination process, a 'mud returning temperature control process' is adopted, high-solid-content mud in a titanium tetrachloride settling tank is returned to a low-temperature chlorination furnace, gasification and heat absorption are carried out to control the low-temperature chlorination furnace to operate at a lower temperature, and generated FeCl is produced 3 And the iron-containing solid phase is firstly introduced into TiCl 4 In the condensation collection procedure of (2), the mixture is collected and stored in a titanium tetrachloride settling tank, then enters a low-temperature chlorination furnace along with the operation of a mud returning process, and is reciprocated in the way, the load from the low-temperature chlorination furnace to a tail gas leaching collection system is continuously increased, and finally TiCl can be caused due to the fact that the solid content in the tail gas is too high 4 The paralysis of the collecting system causes that the low-temperature chlorination furnace cannot run at full load, and the recycling efficiency of Ti is seriously affected.
Thus, a low temperature chlorination furnace FeCl was developed 3 Collecting device capable of collecting FeCl chlorinated in low-temperature chlorination furnace 3 And iron-containing solid phase material for preventing FeCl 3 Entering the subsequent TiCl 4 The condensation collection procedure of the method not only can ensure the normal operation of the condensation collection procedure, but also can improve the recycling efficiency of Ti, and has very important significance.
Disclosure of Invention
The invention aims to provide a low-temperature chlorination furnace FeCl 3 Collecting device capable of collecting FeCl generated in low-temperature chlorination furnace 3 And iron-containing solid phase, avoiding high FeCl content 3 The iron-containing solid phase enters the subsequent TiCl 4 The condensation collection procedure of the method can ensure the normal operation of the condensation collection procedure and improve the recycling efficiency of Ti.
In order to achieve the above object, the present invention provides a low temperature chlorination furnace FeCl 3 Comprises a first magnetic field, a traction pipeline and a second magnetic field; wherein,
the first magnetic field is arranged in the expansion section of the low-temperature chlorination furnace body, and the direction of the first magnetic field is set to be capable of controlling FeCl in the expansion section 3 Stopping the upward movement;
the traction pipeline is arranged on the side surface of the expansion section of the low-temperature chlorination furnace body, the second magnetic field is arranged in the traction pipeline, and the direction of the second magnetic field is set to be capable of controlling FeCl 3 Moving outwards along the traction line, the second magnetic field having a higher magnetic field strength than the first magnetic field;
the device also comprises a collecting device which is arranged at the outlet of the traction pipeline and is used for collecting FeCl 3 。
In the present invention, tiCl is the reaction product of the low temperature chlorination furnace 4 、FeCl 3 And other flue gas gradually rise to an expansion section, feCl 3 The gas is controlled by the first magnetic field to no longer move upwards and then enters the collection device through the traction line under the control of the second magnetic field with a stronger magnetic field strength.
According to the invention, feCl is prepared in a low-temperature chlorination furnace 3 Is a collection device of (a)Preferably, the first magnetic field is a magnetic coil wound inside the enlarged section, and the second magnetic field is a magnetic coil wound inside the traction line.
According to the invention, feCl is prepared in a low-temperature chlorination furnace 3 Preferably, the collection device comprises a settling tank; wherein,
the inlet of the sedimentation tank is connected with a traction pipeline, the top of the sedimentation tank is connected with a nitrogen pressurizing pipeline, a first pressure regulating valve is arranged on the traction pipeline, and a first pressure gauge is arranged on the sedimentation tank; the bottom of the sedimentation tank is provided with a slag discharge pipeline, and the slag discharge pipeline is provided with a valve. The first pressure gauge showed the pressure in the settling tank during nitrogen stamping.
In the invention, the bottom of the settling tank is provided with the slag discharge pipeline, so that solid particles entering the settling tank at the same time are conveniently discharged through the slag discharge pipeline.
According to the invention, feCl is prepared in a low-temperature chlorination furnace 3 Preferably, the collecting device further comprises a collecting tank, the inlet of which is connected to the outlet of the settling tank by a transfer line. FeCl in a settling tank 3 The gas and the iron-containing solid phase substance enter a collecting storage tank through a conveying pipeline to realize the iron-containing solid phase substance and high-purity FeCl 3 TiCl is collected 4 The gas enters a subsequent collecting and leaching system through a flue gas pipeline at the top of the chlorination furnace.
According to the invention, feCl is prepared in a low-temperature chlorination furnace 3 Preferably, the collecting tank is provided with a pressure control pipeline and a second pressure gauge, the pressure control pipeline is provided with a second pressure regulating valve, and the second pressure regulating valve is in signal connection with the second pressure gauge. The pressure of the collecting storage tank is controlled to be smaller than the pressure of the sedimentation tank by adjusting the second pressure regulating valve, and FeCl in the sedimentation tank is enabled to be taken as a power source through the pressure difference 3 The gas and the iron-containing solid phase substance enter a collecting storage tank through a conveying pipeline.
According to the invention, feCl is prepared in a low-temperature chlorination furnace 3 Preferably, the device also comprises a slag discharging main pipe which is arranged at the expansion section of the low-temperature chlorination furnace bodyThe lower furnace body is arranged on the lower furnace body in a downward inclined way; the slag discharging main pipe is connected with a slag discharging pipeline.
According to the invention, feCl is prepared in a low-temperature chlorination furnace 3 Preferably, the first magnetic field strength is 70-90Wb/m 2 The second magnetic field strength is 90-120Wb/m 2 . More preferably, the first magnetic field strength is 70Wb/m 2 The second magnetic field strength is 90Wb/m 2 。
According to the invention, feCl is prepared in a low-temperature chlorination furnace 3 Preferably, a flue gas pipeline is arranged at the top of the low-temperature chlorination furnace body, and the flue gas pipeline is connected with a collecting and leaching system.
In addition, the invention also provides the FeCl of the low-temperature chlorination furnace 3 The collecting method of the collecting device comprises the following steps:
step (1): starting a low-temperature chlorination furnace, and then opening FeCl of the first magnetic field control expansion section 3 Stop moving upward to make FeCl 3 Enrichment in the expansion section;
step (2): introducing nitrogen into the settling tank through a nitrogen pressurizing pipeline until the pressure is the same as the pressure in the expansion section, and then opening a first pressure regulating valve;
step (3): turning on the second magnetic field to control the enrichment of the expansion section 3 Moving outwardly along the draw line into the settling tank;
step (4): opening a second pressure regulating valve and a second pressure gauge, and controlling the pressure in the collecting storage tank to be lower than that in the settling tank to enable the settling tank to contain FeCl 3 Is transported to a collection tank by a transport line.
The collecting method according to the present invention preferably further comprises a slag discharging step: and opening a switch valve on a slag discharge pipeline at the bottom of the settling tank to discharge sediment at the bottom of the settling tank through the slag discharge pipeline.
The beneficial effects of the invention are as follows:
the invention provides a low-temperature chlorination furnace FeCl 3 Can collect FeCl generated in a low-temperature chlorination furnace 3 And reduce TiCl 4 FeCl in flue gas 3 And the content of the iron-containing solid phase matters reduces the burden of a subsequent leaching and collecting system and ensures the full-load operation of the low-temperature chlorination furnace production system.
By implementing the technical scheme of the invention, tiCl can be processed 4 The iron content in the flue gas is reduced to below 10ppm, and FeCl with the purity of more than 97% is successfully collected 3 The powder can be directly sold, so that the secondary utilization of the iron-containing solid slag after entering the chlorination residue is realized, the load pressure of a low-temperature chlorination leaching collecting system is effectively reduced, the full-load operation of the low-temperature chlorination furnace is ensured, and the Ti recycling efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 shows a low temperature chlorination furnace FeCl of the present disclosure 3 Is a schematic structural view of the collecting device.
Wherein, 1-low temperature chlorination furnace body, 2-expansion section, 21-first magnetic field, 3-flue gas pipeline, 4-traction pipeline, 41-second magnetic field, 5-first pressure regulating valve, 6-settling tank, 7-collection storage tank, 8-conveying pipeline, 9-slag discharging main pipe, 10-slag discharging pipeline, 11-pressure control pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Examples
As shown in FIG. 1, a low-temperature chlorination furnace FeCl of the embodiment 3 The structure of the collecting device is as follows:
comprises a first magnetic field 21, wherein the first magnetic field 21 is a magnetic coil wound on the inner side of the expansion section 2 of the low-temperature chlorination furnace body 1, and the first magnetic field 21 can control the entering into the expansion section 2FeCl of (C) 3 And stopping the upward movement of the solid iron phase;
comprises a traction pipeline 4 and a second magnetic field 41, wherein the traction pipeline 4 is arranged on the side surface of the expansion section 2 of the low-temperature chlorination furnace body 1, the second magnetic field 41 is a magnetic coil wound in the traction pipeline 4, and the second magnetic field 41 can control FeCl in the expansion section 2 3 Moving outwards along the traction line 4, the first magnetic field 21 has a field strength of 70Wb/m 2 The magnetic field strength of the second magnetic field 41 is 90Wb/m 2 ；
The device also comprises a collecting device, wherein the collecting device comprises a settling tank 6 and a collecting storage tank 7; the inlet of the sedimentation tank 6 is connected with the traction pipeline 4, the top of the sedimentation tank 6 is connected with the nitrogen charging pipeline, the traction pipeline 4 is provided with a first pressure regulating valve 5, the sedimentation tank 6 is provided with a first pressure gauge, the first pressure regulating valve 5 is in signal connection with the first pressure gauge, and the pressure in the sedimentation tank 6 is the same as the pressure in the expansion section 2 through the nitrogen charging stamping pipeline; the inlet of the collecting storage tank 7 is connected with the outlet of the sedimentation tank 6 through a conveying pipeline 8; the collecting storage tank 7 is provided with a pressure control pipeline 11 and a second pressure gauge, the pressure control pipeline 11 is provided with a second pressure regulating valve, the second pressure regulating valve is connected with the second pressure gauge in a signal mode, and the pressure in the collecting storage tank 7 is regulated to be lower than the pressure in the settling tank 6 through the second pressure regulating valve.
The bottom of the sedimentation tank 6 is provided with a slag discharge pipeline 10, and the slag discharge pipeline 10 is provided with a switch valve; a slag discharging main pipe 9 is arranged on the lower furnace body of the expansion section 2 of the low-temperature chlorination furnace body 1 and is arranged in a downward inclined way; the slag discharging assembly 9 is connected with a slag discharging pipeline 10, and the slag discharging main pipe 9 is connected with a slag discharging tank.
In addition, the top of low temperature chlorination furnace body 1 is equipped with flue gas pipeline 3, and flue gas pipeline 3 is connected with collecting and leaching system.
The collecting method of the collecting device of the embodiment comprises the following steps:
step (1): starting the low-temperature chlorination furnace, and then turning on the first magnetic field 21 to control FeCl in the expansion section 2 3 Stop moving upward to make FeCl 3 And the solid phase of iron is enriched in the expansion section 2;
step (2): opening a first pressure gauge and a nitrogen stamping pipeline, stamping into the settling tank 6 through the nitrogen stamping pipeline, and opening a first pressure regulating valve 5 when the pressure in the settling tank 6 is the same as the pressure in the expansion section 2;
step (3): turning on the second magnetic field 41 controls the FeCl enriched in the expansion section 2 3 Moves outwardly along the traction line 4 into the settling tank 6;
step (4): the second pressure regulating valve and the second pressure gauge are opened, and the pressure in the collecting storage tank 7 is controlled to be lower than that in the settling tank 6, so that the settling tank 6 contains FeCl 3 And the flue gas of the solid phase of iron is conveyed to a collecting storage tank 7 through a conveying pipeline 8, and other solid particles entering the sedimentation tank 6 along with the flue gas are deposited at the bottom of the sedimentation tank 6.
The solid particles deposited at the bottom of the settling tank 6 can also be discharged by a deslagging step: and opening a switch valve on a slag discharging pipeline 10 at the bottom of the settling tank 6, so that the deposited slag at the bottom of the settling tank 6 is discharged into a slag discharging main pipe 9 through the slag discharging pipeline 10 and then is discharged into the slag discharging tank through the slag discharging main pipe 9.
Those of ordinary skill in the art will appreciate that: the above discussion of any embodiment is merely exemplary and is not intended to imply that the scope of the disclosure of embodiments of the invention, including the claims, is limited to such examples; combinations of features of the above embodiments or in different embodiments are also possible within the idea of an embodiment of the invention, and there are many other variations of the different aspects of the embodiments of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omissions, modifications, equivalent substitutions, improvements, and the like, which are made within the spirit and principles of the embodiments of the invention, are included within the scope of the embodiments of the invention.
Claims (10)
1. FeCl of low-temperature chlorination furnace 3 Is characterized by comprising a first magnetic field, a traction pipeline and a second magnetic field; wherein,
the first magnetic field is arranged in the expansion section of the low-temperature chlorination furnace body, and the direction of the first magnetic field is set to be capable of controlling FeCl in the expansion section 3 Stopping the upward movement;
the traction pipeline is arranged on the low-temperature chlorination furnace bodyThe side surface of the expansion section is provided with a second magnetic field in the traction pipeline, and the direction of the second magnetic field is set to be capable of controlling FeCl 3 Moving outwards along the traction line, the second magnetic field having a higher magnetic field strength than the first magnetic field;
the device also comprises a collecting device which is arranged at the outlet of the traction pipeline and is used for collecting FeCl 3 。
2. A low temperature chlorination furnace FeCl according to claim 1 3 Wherein the first magnetic field is a magnetic coil wound inside the enlarged section and the second magnetic field is a magnetic coil wound inside the towing line.
3. A low temperature chlorination furnace FeCl according to claim 1 3 Is characterized in that the collecting device comprises a settling tank; wherein,
the inlet of the sedimentation tank is connected with a traction pipeline, the top of the sedimentation tank is connected with a nitrogen pressurizing pipeline, a first pressure regulating valve is arranged on the traction pipeline, and a first pressure gauge is arranged on the sedimentation tank; the bottom of the sedimentation tank is provided with a slag discharge pipeline, and the slag discharge pipeline is provided with a valve.
4. A low temperature chlorination furnace FeCl according to claim 3 3 The collecting device is characterized by further comprising a collecting storage tank, wherein an inlet of the collecting storage tank is connected with an outlet of the settling tank through a conveying pipeline.
5. A low temperature chlorination furnace FeCl according to claim 4 3 The collecting device is characterized in that a pressure control pipeline and a second pressure gauge are arranged on the collecting storage tank, a second pressure regulating valve is arranged on the pressure control pipeline, and the second pressure regulating valve is in signal connection with the second pressure gauge.
6. A low temperature chlorination furnace FeCl according to claim 3 3 Is characterized in thatThe slag discharging main pipe is arranged on the lower furnace body of the expansion section of the low-temperature chlorination furnace body and is obliquely arranged downwards; the slag discharging main pipe is connected with a slag discharging pipeline.
7. A low temperature chlorination furnace FeCl according to claim 1 3 Wherein the first magnetic field strength is 70-90Wb/m 2 The second magnetic field strength is 90-120Wb/m 2 。
8. A low temperature chlorination furnace FeCl according to claim 1 3 The collecting device is characterized in that a flue gas pipeline is arranged at the top of the low-temperature chlorination furnace body, and the flue gas pipeline is connected with the collecting and leaching system.
9. A low temperature chlorination furnace FeCl according to claim 5 3 The collecting method of the collecting device is characterized by comprising the following steps:
step (1): starting a low-temperature chlorination furnace, and then opening FeCl of the first magnetic field control expansion section 3 Stop moving upward to make FeCl 3 Enrichment in the expansion section;
step (2): introducing nitrogen into the settling tank through a nitrogen pressurizing pipeline until the pressure is the same as the pressure in the expansion section, and then opening a first pressure regulating valve;
step (3): turning on the second magnetic field to control the enrichment of the expansion section 3 Moving outwardly along the draw line into the settling tank;
step (4): opening a second pressure regulating valve and a second pressure gauge, and controlling the pressure in the collecting storage tank to be lower than that in the settling tank to enable the settling tank to contain FeCl 3 Is transported to a collection tank by a transport line.
10. A low temperature chlorination furnace FeCl according to claim 9 3 The collecting method of the collecting device is characterized by further comprising the step of deslagging: and opening a switch valve on a slag discharge pipeline at the bottom of the settling tank to discharge sediment at the bottom of the settling tank through the slag discharge pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311209132.0A CN117244683A (en) | 2023-09-19 | 2023-09-19 | FeCl of low-temperature chlorination furnace 3 Collecting device and collecting method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311209132.0A CN117244683A (en) | 2023-09-19 | 2023-09-19 | FeCl of low-temperature chlorination furnace 3 Collecting device and collecting method |
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| CN117244683A true CN117244683A (en) | 2023-12-19 |
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| CN202311209132.0A Pending CN117244683A (en) | 2023-09-19 | 2023-09-19 | FeCl of low-temperature chlorination furnace 3 Collecting device and collecting method |
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