CN111943477A - Red mud filter-pressing and drying system and operation method thereof - Google Patents
Red mud filter-pressing and drying system and operation method thereof Download PDFInfo
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- CN111943477A CN111943477A CN202010937487.1A CN202010937487A CN111943477A CN 111943477 A CN111943477 A CN 111943477A CN 202010937487 A CN202010937487 A CN 202010937487A CN 111943477 A CN111943477 A CN 111943477A
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- red mud
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- 238000001035 drying Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000003825 pressing Methods 0.000 title claims abstract description 18
- 239000002002 slurry Substances 0.000 claims abstract description 36
- 239000000843 powder Substances 0.000 claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 239000002912 waste gas Substances 0.000 claims description 69
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 18
- 239000000446 fuel Substances 0.000 claims description 13
- 239000012065 filter cake Substances 0.000 claims description 12
- 238000005507 spraying Methods 0.000 claims description 12
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 9
- 238000010304 firing Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000000926 separation method Methods 0.000 claims description 3
- 239000000779 smoke Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 2
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 2
- 241001330002 Bambuseae Species 0.000 claims description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 2
- 239000011425 bamboo Substances 0.000 claims description 2
- 238000001354 calcination Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000004131 Bayer process Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 229910001570 bauxite Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000001238 wet grinding Methods 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a red mud filter-pressing and drying system and an operation method thereof, and the red mud filter-pressing and drying system comprises a slurry pool, a slurry pump, a filter press, a cake box, a belt conveyor, a drying crusher, a hot blast stove, a cyclone and a powder conveying chute, wherein a feed inlet and a discharge outlet of the slurry pump are respectively connected with a discharge outlet of the slurry pool and a feed inlet of the filter press, a feed inlet of the cake box is connected with a discharge outlet of the filter press, a discharge outlet of the cake box is connected with a feed inlet of the drying crusher through the belt conveyor, and an air outlet of the hot blast stove is connected: the air outlet of the drying crusher is connected with the air inlet of the cyclone; according to the invention, most of moisture in the red mud is removed by virtue of the filter press and the cake box to prepare the red mud cake, and the red mud cake is dried and scattered by virtue of the hot air furnace and the drying crusher to remove residual moisture in the red mud, so that the moisture in the red mud is effectively removed and prepared into the red mud powder, and further, the heat consumption required in the calcining process is greatly reduced, and the production cost is greatly reduced.
Description
Technical Field
The invention relates to a red mud filter-pressing and drying system and an operation method thereof.
Background
The aluminum oxide preparation currently uses a Bayer process as a main preparation process, the Bayer process is simple in preparation process flow and low in production cost, but has high requirements on bauxite, and is suitable for preparing aluminum oxide from bauxite with high aluminum-silicon ratio.
At present, a wet grinding mode is usually adopted to prepare raw slurry from red mud generated by preparing alumina by a Bayer process, and then the raw slurry is fed into a rotary kiln for wet calcination to prepare alumina clinker; the existing red mud is not dehydrated before calcination, so that the red mud contains higher moisture, the heat consumption in the process of calcining the red mud into clinker is higher, and the production cost is higher.
Disclosure of Invention
In view of the current situation of the prior art, the technical problem to be solved by the invention is to provide a red mud filter pressing and drying system and an operation method thereof, which can greatly reduce the heat consumption required in the calcination process, save the fuel consumption of a hot blast stove, and reduce the waste gas air volume generated by the hot blast stove so as to save the energy consumption required by the subsequent waste gas treatment and transportation, thereby greatly reducing the production cost.
The technical scheme adopted by the invention for solving the technical problems is as follows: the red mud filter-pressing and drying system is characterized in that: including slurry pond, slurry pump, pressure filter, cake case, belt feeder, drying crusher, hot-blast furnace, whirlwind section of thick bamboo and powder chute, the feed inlet and the discharge gate of slurry pump link to each other with the discharge gate in slurry pond and the feed inlet of pressure filter respectively, the feed inlet of cake case links to each other with the discharge gate of pressure filter, the discharge gate of cake case passes through the belt feeder and links to each other with the feed inlet of drying crusher, the air outlet of hot-blast furnace links to each other with drying crusher's air intake: the air outlet of the drying crusher is connected with the air inlet of the cyclone, and the discharge port of the cyclone is connected with the feed port of the powder conveying chute.
Preferably, the slurry pump further comprises a control valve, and the control valve is arranged between the feeding hole of the slurry pump and the discharging hole of the slurry tank.
Preferably, the drying and crushing machine further comprises a water spraying device, and the water spraying device is arranged in an air outlet of the drying and crushing machine.
An operation method of a red mud filter-pressing and drying system is characterized in that: the method comprises the following steps:
(1) sending the high-moisture red mud from the alumina preparation production line into a slurry tank for storage, and stirring and homogenizing to obtain the red mud with relatively uniform components; the red mud in the slurry pool is sent to a filter press by a slurry pump to obtain a red mud filter cake with the water content of about 30 percent.
(2) The red mud filter cake enters a cake box, the filter cake is conveyed to a belt conveyor through storage and buffering of the cake box, then the red mud filter cake is fed into a drying crusher through the belt conveyor, and a hot blast stove is started to provide hot air for the drying crusher, so that drying and scattering of the red mud cake are completed in the drying crusher.
(3) The dried and scattered red mud forms dry powder red mud, the dry powder red mud enters a cyclone cylinder under the drive of dried waste gas to realize gas-solid separation, the separated dry red mud powder is discharged from a discharge port of the cyclone cylinder and is conveyed to the next procedure through a powder conveying chute, and the separated waste gas enters a waste gas treatment system.
(4) Kiln head waste gas and kiln tail waste gas generated by an alumina clinker firing system are respectively introduced into the upper part and the lower part of the inside of a hot blast stove and are mixed with hot air generated by the hot blast stove, the mixed hot air enters a drying crusher, and then the drying and scattering of red mud cakes are completed in the drying crusher.
(5) When the moisture of the red mud is high, the fuel consumption of the hot blast stove and the waste gas heat of the kiln head and the kiln tail can be increased, so that the smoke gas quantity and the temperature of the hot blast stove are increased, and the drying heat entering a drying crusher is increased; when the moisture of the red mud is relatively low, the fuel consumption of the hot blast stove and the waste gas heat of the kiln head and the kiln tail can be reduced so as to dry the red mud.
(6) When the red mud feeding is broken or other reasons cause the waste gas temperature at the air outlet of the drying crusher to be overhigh, the water spraying device is started to spray water into the air outlet of the drying crusher, so that the temperature of high-temperature drying gas is reduced, the safety of subsequent equipment is ensured, and the fuel spraying amount of the hot blast stove is reduced or stopped.
(7) Connecting the kiln head waste gas and the kiln tail waste gas with a waste gas treatment system at the same time; when the drying crusher stops running or feeding, the waste gas at the tail and the head of the kiln does not enter the hot blast stove any more but directly leads to a waste gas treatment system; when the drying crusher normally operates, one path of kiln head waste gas and kiln tail waste gas can enter the hot blast stove, the other path of kiln head waste gas and kiln tail waste gas directly lead to a waste gas treatment system, and the amount of the two paths of waste gas is adjusted to meet the system requirements.
Compared with the prior art, the invention has the advantages that: according to the invention, most of moisture in the red mud is removed by virtue of the filter press and the cake box to prepare the red mud cake, and the red mud cake is dried and broken up by virtue of the hot air furnace and the drying crusher to remove the residual moisture in the red mud, so that the moisture in the red mud is effectively removed, the heat consumption required in the calcining process is greatly reduced, and the production cost is greatly reduced; in addition, kiln head and kiln tail waste gas of the alumina clinker firing system are used as partial drying heat sources to dry the red mud, so that the fuel consumption of the hot blast stove is saved, and the waste gas air volume generated by the hot blast stove is reduced to save energy consumption required by subsequent waste gas treatment and conveying, thereby further reducing the production cost.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the structure of the invention when the kiln head and kiln tail exhaust gas are all connected to the hot blast stove;
FIG. 3 is an installation position view of the control valve and the water jet apparatus of the present invention;
FIG. 4 is a schematic diagram of the structure of the kiln head and kiln tail exhaust gas of the invention when directly connected with an exhaust gas treatment system.
Detailed Description
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
To maintain the following description of the embodiments of the present invention clear and concise, a detailed description of known functions and known components of the invention have been omitted.
As shown in fig. 1-4, a red mud filter-pressing and drying system, including slurry tank 1, slurry pump 2, pressure filter 3, cake box 4, belt feeder 5, drying crusher 6, hot-blast furnace 7, cyclone 8 and powder conveying chute 9, slurry pump 2's feed inlet and discharge gate link to each other with slurry tank 1's discharge gate and pressure filter 3's feed inlet respectively, cake box 4's feed inlet links to each other with pressure filter 3's discharge gate, cake box 4's discharge gate passes through belt feeder 5 and drying crusher 6's feed inlet and links to each other, hot-blast furnace 7's air outlet links to each other with drying crusher 6's air intake: the air outlet of the drying crusher 6 is connected with the air inlet of the cyclone 8, and the discharge port of the cyclone 8 is connected with the feed port of the powder conveying chute 9.
The red mud filter-pressing and drying system also comprises a control valve 11, wherein the control valve 11 is arranged between a feed port of the slurry pump 2 and a discharge port of the slurry pool 1 so as to realize the adjustment of the red mud slurry conveying amount and realize the cutting off and supply of the red mud slurry conveying to be matched with the work of a subsequent filter press 3.
The red mud filter-pressing and drying system further comprises a water spraying device 10, and the water spraying device 10 is arranged in an air outlet of the drying crusher 6.
An operation method of a red mud filter-pressing and drying system comprises the following steps:
(1) sending high-moisture red mud (with the water content of 60-70%) from an alumina preparation production line into a slurry tank 1 for storage, and stirring and homogenizing to obtain red mud with relatively uniform components; the red mud in the slurry tank 1 is sent to a filter press 3 through a slurry pump 2, partial dehydration is realized through mechanical filter pressing, more than 30% of water can be filtered out through filter pressing generally, and a red mud filter cake with the water content of about 30% is obtained.
(2) The red mud filter cake enters the cake box 4, the filter cake is conveyed to the belt conveyor 5 through storage and buffering of the cake box 4, then the belt conveyor 5 feeds the red mud filter cake into the drying and crushing machine 6, and the hot blast stove 7 is started to provide hot blast for the drying and crushing machine 6, so that drying and scattering of the red mud cake are completed in the drying and crushing machine 6.
(3) The red mud after drying and scattering is formed into dry powder red mud, and the dry powder red mud enters the cyclone cylinder 8 under the driving of the drying waste gas to realize gas-solid separation, the separated dry red mud powder is discharged from the discharge port of the cyclone cylinder 8 and is conveyed to the next procedure through the powder conveying chute 9, and the separated waste gas enters the waste gas treatment system.
(4) Respectively introducing kiln head waste gas and kiln tail waste gas generated by an alumina clinker firing system into the upper part and the lower part of the inside of a hot blast stove 7, mixing the kiln head waste gas and the kiln tail waste gas with hot blast generated by the hot blast stove 7, feeding the mixed hot blast into a drying crusher 6, and further drying and scattering red mud cakes in the drying crusher 6; the alumina clinker firing system generally comprises a preheater system, a rotary kiln, a grate cooler and the like, wherein high-temperature hot air formed by heat exchange between middle-section cooling air and rear-section cooling air of the grate cooler and high-temperature clinker is kiln head waste gas, and the high-temperature hot air is introduced to the upper part inside the hot blast stove 7 to be used as secondary air of the hot blast stove 7; the flue gas formed by the rotary kiln preheats dry raw materials in a preheater system, while the materials are heated, the waste flue gas after temperature reduction is the kiln tail waste gas, the kiln tail waste gas is discharged from the outlet of the preheater and then enters the lower part of the inside of a hot blast stove 7, as shown in figure 2, the kiln tail waste gas and the flue gas formed by burning the fuel of the hot blast stove 7 are combined into high-temperature drying hot air for drying the red mud.
(5) When the moisture of the red mud is high, the fuel consumption of the hot blast stove 7 and the waste gas heat of the kiln head and the kiln tail can be increased, so that the smoke gas quantity and the temperature of the hot blast stove 7 are increased, and the drying heat entering the drying crusher 6 is increased; when the moisture of the red mud is relatively low, the fuel consumption of the hot blast stove 7 and the waste gas heat of the kiln head and the kiln tail can be reduced to dry the red mud.
(6) When the red mud feeding is broken or other reasons cause the waste gas temperature at the air outlet of the drying crusher 6 to be overhigh, the water spraying device 10 is started to spray water into the air outlet of the drying crusher 6, so that the temperature of high-temperature drying gas is reduced, the safety of subsequent equipment is ensured, and meanwhile, the fuel spraying amount of the hot blast stove 7 is reduced or stopped, as shown in figure 3.
(7) Connecting the kiln head waste gas and the kiln tail waste gas with a waste gas treatment system at the same time; when the drying crusher 6 stops running or feeding, the waste gas at the tail and the head of the kiln does not enter the hot blast stove 7 any more but directly leads to a waste gas treatment system; when the drying crusher 6 normally operates, kiln head waste gas and kiln tail waste gas can enter the hot blast stove 7 through one path, and the other path is directly led to a waste gas treatment system, and the system requirements are met by adjusting the amount of the two paths of waste gas, as shown in fig. 4.
According to the invention, most of moisture in the red mud is removed by means of the filter press 3 and the cake box 4 to prepare the red mud cake, and then the red mud cake is dried and scattered by means of the hot air furnace 7 and the drying crusher 6 to remove the residual moisture in the red mud, so that the moisture in the red mud is effectively removed and the red mud powder is prepared, further the heat consumption required in the calcining process is greatly reduced, and the production cost is greatly reduced; in addition, kiln head and kiln tail waste gas of the alumina clinker firing system are used as partial drying heat sources to dry the red mud, so that the fuel consumption of the hot blast stove 7 is saved, and the waste gas air volume generated by the hot blast stove 7 is reduced to save energy consumption required by subsequent waste gas treatment and conveying, thereby further reducing the production cost.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in the embodiments and modifications thereof may be made, and equivalents may be substituted for elements thereof; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. The red mud filter-pressing and drying system is characterized in that: including slurry pond, slurry pump, pressure filter, cake case, belt feeder, drying crusher, hot-blast furnace, whirlwind section of thick bamboo and powder chute, the feed inlet and the discharge gate of slurry pump link to each other with the discharge gate in slurry pond and the feed inlet of pressure filter respectively, the feed inlet of cake case links to each other with the discharge gate of pressure filter, the discharge gate of cake case passes through the belt feeder and links to each other with the feed inlet of drying crusher, the air outlet of hot-blast furnace links to each other with drying crusher's air intake: the air outlet of the drying crusher is connected with the air inlet of the cyclone, and the discharge port of the cyclone is connected with the feed port of the powder conveying chute.
2. The red mud filter-pressing and drying system according to claim 1, wherein: still include the control valve, the control valve is located between the discharge gate in feed inlet of slurry pump and slurry pond.
3. The red mud filter-pressing and drying system according to claim 1, wherein: the drying crusher further comprises a water spraying device, and the water spraying device is arranged in an air outlet of the drying crusher.
4. An operation method of a red mud filter-pressing and drying system is characterized in that: the method comprises the following steps:
(1) sending the high-moisture red mud from the alumina preparation production line into a slurry tank for storage, and stirring and homogenizing to obtain the red mud with relatively uniform components; the red mud in the slurry pool is sent to a filter press by a slurry pump to obtain a red mud filter cake with the water content of about 30 percent.
(2) The red mud filter cake enters a cake box, the filter cake is conveyed to a belt conveyor through storage and buffering of the cake box, then the red mud filter cake is fed into a drying crusher through the belt conveyor, and a hot blast stove is started to provide hot air for the drying crusher, so that drying and scattering of the red mud cake are completed in the drying crusher.
(3) The dried and scattered red mud forms dry powder red mud, the dry powder red mud enters a cyclone cylinder under the drive of dried waste gas to realize gas-solid separation, the separated dry red mud powder is discharged from a discharge port of the cyclone cylinder and is conveyed to the next procedure through a powder conveying chute, and the separated waste gas enters a waste gas treatment system.
(4) Kiln head waste gas and kiln tail waste gas generated by an alumina clinker firing system are respectively introduced into the upper part and the lower part of the inside of a hot blast stove and are mixed with hot air generated by the hot blast stove, the mixed hot air enters a drying crusher, and then the drying and scattering of red mud cakes are completed in the drying crusher.
(5) When the moisture of the red mud is high, the fuel consumption of the hot blast stove and the waste gas heat of the kiln head and the kiln tail can be increased, so that the smoke gas quantity and the temperature of the hot blast stove are increased, and the drying heat entering a drying crusher is increased; when the moisture of the red mud is relatively low, the fuel consumption of the hot blast stove and the waste gas heat of the kiln head and the kiln tail can be reduced so as to dry the red mud.
(6) When the red mud feeding is broken or other reasons cause the waste gas temperature at the air outlet of the drying crusher to be overhigh, the water spraying device is started to spray water into the air outlet of the drying crusher, so that the temperature of high-temperature drying gas is reduced, the safety of subsequent equipment is ensured, and the fuel spraying amount of the hot blast stove is reduced or stopped.
(7) Connecting the kiln head waste gas and the kiln tail waste gas with a waste gas treatment system at the same time; when the drying crusher stops running or feeding, the waste gas at the tail and the head of the kiln does not enter the hot blast stove any more but directly leads to a waste gas treatment system; when the drying crusher normally operates, one path of kiln head waste gas and kiln tail waste gas can enter the hot blast stove, the other path of kiln head waste gas and kiln tail waste gas directly lead to a waste gas treatment system, and the amount of the two paths of waste gas is adjusted to meet the system requirements.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010937487.1A CN111943477A (en) | 2020-09-08 | 2020-09-08 | Red mud filter-pressing and drying system and operation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010937487.1A CN111943477A (en) | 2020-09-08 | 2020-09-08 | Red mud filter-pressing and drying system and operation method thereof |
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| CN111943477A true CN111943477A (en) | 2020-11-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116212517A (en) * | 2023-01-30 | 2023-06-06 | 广西粤桥新材料科技有限公司 | Separation and drying method and system for synthetic rutile |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618761A (en) * | 2003-11-17 | 2005-05-25 | 成都建筑材料工业设计研究院有限公司 | New type wet grinding dry burning technology |
| CN102626670A (en) * | 2012-04-28 | 2012-08-08 | 北京科技大学 | Method for preparing high purity iron ore by reducing and magnetizing red mud in rotary kiln |
| CN203782044U (en) * | 2014-04-16 | 2014-08-20 | 南京凯盛国际工程有限公司 | System for drying and decomposing wet carbide slag as calcium raw material to sinter cement clinker |
-
2020
- 2020-09-08 CN CN202010937487.1A patent/CN111943477A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1618761A (en) * | 2003-11-17 | 2005-05-25 | 成都建筑材料工业设计研究院有限公司 | New type wet grinding dry burning technology |
| CN102626670A (en) * | 2012-04-28 | 2012-08-08 | 北京科技大学 | Method for preparing high purity iron ore by reducing and magnetizing red mud in rotary kiln |
| CN203782044U (en) * | 2014-04-16 | 2014-08-20 | 南京凯盛国际工程有限公司 | System for drying and decomposing wet carbide slag as calcium raw material to sinter cement clinker |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116212517A (en) * | 2023-01-30 | 2023-06-06 | 广西粤桥新材料科技有限公司 | Separation and drying method and system for synthetic rutile |
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