CN220882872U - High-viscosity bentonite slurry production equipment for metallurgical pellets - Google Patents
High-viscosity bentonite slurry production equipment for metallurgical pellets Download PDFInfo
- Publication number
- CN220882872U CN220882872U CN202321386050.9U CN202321386050U CN220882872U CN 220882872 U CN220882872 U CN 220882872U CN 202321386050 U CN202321386050 U CN 202321386050U CN 220882872 U CN220882872 U CN 220882872U
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- Prior art keywords
- feeder
- slurry
- bin
- stirring
- sodium salt
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- 239000002002 slurry Substances 0.000 title claims abstract description 84
- 229910000278 bentonite Inorganic materials 0.000 title claims abstract description 35
- 239000000440 bentonite Substances 0.000 title claims abstract description 35
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 239000008188 pellet Substances 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000003756 stirring Methods 0.000 claims abstract description 73
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 34
- 159000000000 sodium salts Chemical class 0.000 claims abstract description 33
- 239000000654 additive Substances 0.000 claims abstract description 25
- 230000000996 additive effect Effects 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 229910001868 water Inorganic materials 0.000 claims abstract description 19
- 239000004368 Modified starch Substances 0.000 claims abstract description 14
- 229920000881 Modified starch Polymers 0.000 claims abstract description 14
- 229910000281 calcium bentonite Inorganic materials 0.000 claims abstract description 14
- 235000019426 modified starch Nutrition 0.000 claims abstract description 14
- 229920002472 Starch Polymers 0.000 claims abstract description 13
- 239000008107 starch Substances 0.000 claims abstract description 13
- 235000019698 starch Nutrition 0.000 claims abstract description 13
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 10
- 239000011734 sodium Substances 0.000 claims description 10
- 229910052708 sodium Inorganic materials 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 7
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 229940092782 bentonite Drugs 0.000 description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 11
- 229910000029 sodium carbonate Inorganic materials 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 6
- 238000005453 pelletization Methods 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000002245 particle Substances 0.000 description 4
- ONCZQWJXONKSMM-UHFFFAOYSA-N dialuminum;disodium;oxygen(2-);silicon(4+);hydrate Chemical compound O.[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Na+].[Na+].[Al+3].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] ONCZQWJXONKSMM-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000280 sodium bentonite Inorganic materials 0.000 description 3
- 229940080314 sodium bentonite Drugs 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920003063 hydroxymethyl cellulose Polymers 0.000 description 1
- 229940031574 hydroxymethyl cellulose Drugs 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A high viscosity bentonite slurry production device for metallurgical pellets, comprising: the device comprises a water inlet pipe, a sodium salt slurry stirring tank, a stirring main shaft, a stirring shaft motor, stirring arms, a soda bin, a soda feeder, a modified starch bin, a starch feeder, a synthetic tackifying additive reservoir, an additive feeder, a calcium bentonite bin, a bentonite feeder, a slurry pump and a slurry pipe, wherein the water inlet pipe and a valve are arranged on the middle tank wall of the sodium salt slurry stirring tank, the stirring main shaft and the stirring shaft motor are arranged in the middle of the sodium salt slurry stirring tank, a plurality of groups of stirring arms are arranged on the main shaft, the soda bin, the modified starch bin, the synthetic tackifying additive reservoir is arranged above the sodium salt slurry stirring tank, the soda feeder, the starch feeder and the additive feeder are respectively arranged at the outlets, the starch feeder outlet is connected with the sodium salt slurry stirring tank, a slurry pump position is reserved at one side of the sodium salt slurry stirring tank, the slurry pump is arranged at the slurry pipe, and high-viscosity bentonite slurry is conveyed into a balling disc to make balls.
Description
Technical Field
Relates to a high-viscosity bentonite slurry production device for metallurgical pellets, and belongs to the technical field of bentonite slurry production.
Background
In the production process of the iron powder pellets, the addition amount of bentonite is reduced on the premise of ensuring the pellet strength, the grade of the iron pellets is improved, the iron pellets are the important factors in the research of pellet factories of various large iron and steel enterprises, 1 ton of iron is reduced by 1 ton of bentonite per multi-use of a blast furnace, the enterprise benefit is reduced, in addition, the electricity is very much consumed in the pellet production, the electricity consumption is about 30-50 kWh/t, the excessive addition of bentonite not only reduces the grade of iron ore, but also brings adverse effects of high powder content, low strength, low yield and the like to the pellet production, so that the use amount of bentonite is reduced to the minimum, and at least the aim that the pellet factories always pursue the better level in the same industry in China is achieved.
Disclosure of Invention
In order to solve the problems, the metallurgical pellet enterprises prepare the high-viscosity bentonite slurry on site to pelletize, so that the bentonite dosage can be reduced, and the grade of the metallurgical pellets can be improved.
In order to solve the technical problems, the high-viscosity bentonite slurry production equipment for metallurgical pellets comprises: the device comprises a water inlet pipe, a valve, a sodium modification slurry stirring pool, a stirring main shaft, a stirring shaft motor, a stirring arm, a sodium carbonate bin, a sodium carbonate feeder, a modified starch bin, a starch feeder, a synthetic tackifying additive bin, an additive feeder, a calcium bentonite bin, a bentonite feeder, a slurry pump and a slurry pipe.
A water inlet pipe and a valve are arranged on the middle tank wall of the sodium salt slurry stirring tank.
A stirring main shaft and a stirring shaft motor are arranged in the middle of the sodium-modified slurry stirring pool, and a plurality of groups of stirring arms are arranged on the stirring main shaft.
The sodium carbonate bin is arranged above the sodium salt slurry stirring tank, the sodium carbonate bin outlet is provided with a sodium carbonate feeder for controlling the addition amount, and the sodium carbonate feeder outlet is connected with the sodium salt slurry stirring tank.
The modified starch bin is also arranged above the sodium salt slurry stirring pool, a starch feeder is arranged at the outlet of the modified starch bin, and the outlet of the starch feeder is connected with the sodium salt slurry stirring pool.
The synthetic tackifying additive library is arranged above the sodium salt slurry stirring tank, the outlet of the synthetic tackifying additive library is provided with an additive feeder, and the outlet of the additive feeder is connected with the sodium salt slurry stirring tank.
The calcium bentonite feed bin is installed above the sodium salt slurry stirring pool, the bentonite feeder is installed at the outlet of the calcium bentonite feed bin, and the outlet of the bentonite feeder is connected with the sodium salt slurry stirring pool.
One side of the sodium-modified slurry stirring tank is reserved with a slurry pump, a slurry pipe is arranged at the slurry pump outlet, and the high-viscosity bentonite slurry is conveyed into a balling disc for balling.
The high-viscosity bentonite slurry production equipment for metallurgical pellets has the following progress.
The suspension method is to make calcium bentonite and sodium carbonate into slurry in water, completely pre-water sodium treatment to replace more calcium and magnesium ions with sodium ions, and the sodium treatment efficiency can be obviously improved.
The artificial sodium bentonite slurry improves the electric potential of the crystal layer, has higher cohesiveness, and can reduce the dosage of the pellet bentonite to 1/2-1/3 of the dosage of the calcium-based soil.
The synthetic tackifying adhesive produced based on PAM, sodium hydroxymethyl cellulose (CMC) and the like can increase the strength of particles, obtain better surface performance, enhance crack resistance, obviously improve the pelletization particle size composition of the mixture, and has the advantages of more uniform and reasonable mixture particle size, good pelletization performance, uniform particle size and high pelletization quality.
In general, the water absorption rate of the calcium bentonite is 100% -300%, and the water absorption rate of the sodium bentonite slurry can reach 400% -700%.
The total water absorption of the high-viscosity bentonite slurry measured in the process time of 30-60 minutes can reach more than 80 percent of the total water absorption.
The water absorption problem can be thoroughly solved by adopting artificial sodium bentonite slurry to pelletize.
The addition of organic matters can improve the water absorption rate of bentonite, is beneficial to the pelletizing process and improves the quality of green pellets.
The added organic matters are burnt at high temperature to generate carbon dioxide and water, and the metal grade is not influenced.
According to the pelletizing requirement of the grade of the metallurgical powder, the dosage of the synthetic tackifying additive and the modified starch can be timely adjusted to meet the requirement of manufacturing high-quality metallurgical pellets.
Because bentonite slurry with an organic binder is added in the pelletizing process, the metallurgical pellets produced by the method have smooth surfaces and high strength, are not easy to crack when dry pellets fall down, and are not easy to produce dust to pollute the environment.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the structure of the present invention.
In fig. 1, a metallurgical pellet is with high-viscosity bentonite mud production facility includes: 1. the device comprises a water inlet pipe, a valve, a sodium salt slurry stirring tank, a stirring main shaft, a stirring shaft motor, a stirring arm, a soda bin, a soda feeder, a modified starch bin, a starch feeder, a synthetic viscosity increasing additive bin, an additive feeder, a calcium bentonite bin, a bentonite feeder, a slurry pump and a slurry pipe.
Description of the embodiments
The invention is further described below with reference to the drawings and the detailed description.
A high viscosity bentonite slurry production device for metallurgical pellets, comprising: the device comprises a water inlet pipe, a valve 1, a sodium modification slurry stirring tank 2, a stirring main shaft 3, a stirring shaft motor 4, a stirring arm 5, a soda bin 6, a soda feeder 7, a modified starch bin 8, a starch feeder 9, a synthetic tackifying additive warehouse 10, an additive feeder 11, a calcium bentonite bin 12, a bentonite feeder 13, a slurry pump 14 and a slurry pipe 15.
A water inlet pipe and a valve 1 are arranged on the middle tank wall of the sodium salt slurry stirring tank 2.
A stirring main shaft 3 and a stirring shaft motor 4 are arranged in the middle of the sodium modification slurry stirring tank 2, and a plurality of groups of stirring arms 5 are arranged on the stirring main shaft 3.
The soda bin 6 is arranged above the sodium treatment slurry stirring tank 2, a soda feeder 7 is arranged at the outlet of the soda bin 6 and is used for controlling the addition amount, and the outlet of the soda feeder 7 is connected with the sodium treatment slurry stirring tank 2.
The modified starch feed bin 8 is also arranged above the sodium salt slurry stirring tank 2, a starch feeder 9 is arranged at the outlet of the modified starch feed bin 8, and the outlet of the starch feeder 9 is connected with the sodium salt slurry stirring tank 2.
The synthetic tackifying additive reservoir 10 is arranged above the sodium salt slurry stirring tank 2, the outlet of the synthetic tackifying additive reservoir is provided with an additive feeder 11, and the outlet of the additive feeder 11 is connected with the sodium salt slurry stirring tank 2.
The calcium bentonite feed bin 12 is arranged above the sodium salt slurry stirring pool 2, the outlet of the calcium bentonite feed bin 12 is provided with a bentonite feeder 13, and the outlet of the bentonite feeder 13 is connected with the sodium salt slurry stirring pool 2.
And water, calcium bentonite, sodium carbonate, modified starch and a synthetic tackifying additive are added into the sodium mud stirring tank 2 according to the process proportion and are fully stirred to form high-viscosity bentonite mud for metallurgical pellets.
The sodium-modified slurry stirring tank 2 is reserved with a slurry pump 14, a slurry pipe 15 is arranged at the outlet of the slurry pump 14, and the high-viscosity bentonite slurry is conveyed into a balling disc for balling.
Claims (1)
1. A high viscosity bentonite slurry production device for metallurgical pellets, comprising: the device comprises a water inlet pipe, a valve, a sodium modification slurry stirring pool, a stirring main shaft, a stirring shaft motor, a stirring arm, a soda bin, a soda feeder, a modified starch bin, a starch feeder, a synthetic tackifying additive bin, an additive feeder, a calcium bentonite bin, a bentonite feeder, a slurry pump and a slurry pipe; the method is characterized in that: a water inlet pipe and a valve are arranged on the middle tank wall of the sodium salt slurry stirring tank, a stirring main shaft and a stirring shaft motor are arranged in the middle of the sodium salt slurry stirring tank, a plurality of groups of stirring arms are arranged on the stirring main shaft, a soda bin is arranged above the sodium salt slurry stirring tank, a soda feeder is arranged at the outlet of the soda bin, the outlet of the soda feeder is connected with the sodium salt slurry stirring tank, a modified starch bin is also arranged above the sodium salt slurry stirring tank, a starch feeder is arranged at the outlet of the modified starch bin, the outlet of the starch feeder is connected with the sodium salt slurry stirring tank, a synthetic tackifying additive library is arranged above the sodium salt slurry stirring tank, an additive feeder is arranged at the outlet of the additive feeder, a calcium bentonite bin is arranged above the sodium salt slurry stirring tank, a bentonite feeder is arranged at the outlet of the calcium bentonite bin, the bentonite feeder is connected with the sodium salt slurry stirring tank, a slurry pump is reserved at one side of the sodium salt slurry stirring tank, the slurry pump is provided with a slurry pipe, and high-viscosity slurry is conveyed into a ball forming disc to form balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321386050.9U CN220882872U (en) | 2023-06-02 | 2023-06-02 | High-viscosity bentonite slurry production equipment for metallurgical pellets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321386050.9U CN220882872U (en) | 2023-06-02 | 2023-06-02 | High-viscosity bentonite slurry production equipment for metallurgical pellets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220882872U true CN220882872U (en) | 2024-05-03 |
Family
ID=90877885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321386050.9U Active CN220882872U (en) | 2023-06-02 | 2023-06-02 | High-viscosity bentonite slurry production equipment for metallurgical pellets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220882872U (en) |
-
2023
- 2023-06-02 CN CN202321386050.9U patent/CN220882872U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |