CN113185152A - High-quality calcium oxide grading suspension calcination production line and suspension calcination process thereof - Google Patents
High-quality calcium oxide grading suspension calcination production line and suspension calcination process thereof Download PDFInfo
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- CN113185152A CN113185152A CN202110463261.7A CN202110463261A CN113185152A CN 113185152 A CN113185152 A CN 113185152A CN 202110463261 A CN202110463261 A CN 202110463261A CN 113185152 A CN113185152 A CN 113185152A
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2/00—Lime, magnesia or dolomite
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- C04B2/106—Preheating, burning calcining or cooling in fluidised bed furnaces
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Abstract
The invention belongs to the technical field of lime production, and particularly relates to a high-quality calcium oxide grading suspension calcination production line and a suspension calcination process thereof. The production line and the suspension calcination process thereof achieve the purpose of improving the effective calcium content of the product, and solve the problems that the existing production line and the suspension calcination process thereof for high-quality calcium oxide classification suspension calcination are a one-stage decomposing furnace in the prior art, calcium carbonate is decomposed to generate calcium oxide and carbon dioxide in the reaction process, and only one-stage decomposition is carried out, the concentration of the carbon dioxide can quickly rise due to too large decomposition amount in unit time, the decomposition of the calcium carbonate is blocked due to too high concentration, so that the calcium oxide of the finished product is mixed with the calcium carbonate which is not decomposed, the effective calcium content is insufficient, the actual effective calcium content can only reach eighty-five percent or slightly higher, the effective calcium content of the product is improved, and the production quality is optimized.
Description
Technical Field
The invention relates to the technical field of lime production, in particular to a high-quality calcium oxide grading suspension calcination production line and a suspension calcination process thereof.
Background
Lime is an air-hardening inorganic gelling material with calcium oxide as a main component. The lime is a product with high calcium carbonate content such as limestone, dolomite, chalk, shells and the like, and is calcined at 900-1100 ℃, and the lime is a cementing material applied by human beings at the earliest. The suspension calcining refers to a technological process of suspending fine granular or powdery material in hot air flow under the action of heat-carrying gas and making gas and solid produce violent heat transfer and mass transfer.
1. However, the existing high-quality calcium oxide grading suspension calcination production line and the suspension calcination process thereof have the following defects: the original technology is a first-stage decomposing furnace, calcium carbonate is decomposed to generate calcium oxide and carbon dioxide in the reaction process, and if only first-stage decomposition is carried out, the concentration of the carbon dioxide rises rapidly due to too large decomposition amount in unit time, and the decomposition of the calcium carbonate is blocked due to too high concentration, so that the calcium oxide of a finished product is mixed with the calcium carbonate which is not decomposed, the effective calcium content is insufficient, and the actual effective calcium content can only reach eighty-five percent or a little higher;
2. if high-quality calcium oxide with ninety percent of effective calcium content needs to be produced, limestone with fifty-five percent or higher of total calcium content needs to be selected by a primary decomposing furnace in the prior art, the high-quality calcium oxide can be produced only by the method, the cost of purchasing and selecting limestone is higher, direct mining depends on ore veins, the ore content of the limestone mined by the ore veins is unstable, and the decomposing process is also influenced by the concentration of carbon dioxide, so that the high-quality calcium oxide can not be obtained.
Disclosure of Invention
In order to solve the problems in the background art, the invention provides a high-quality calcium oxide grading suspension calcination production line and a suspension calcination process thereof, and the production line has the characteristics of improving the effective calcium content of products and having high adaptability to raw materials.
In order to achieve the purpose, the invention provides the following technical scheme: the high-quality calcium oxide grading suspension calcination production line and the suspension calcination process thereof comprise a limestone storage device, wherein the output end of the limestone storage device is fixedly connected with a limestone powder preparation device, the material output end of the limestone powder preparation device is fixedly connected with a feeding device, the output end of the feeding device is fixedly connected with a second heating hopper, the airflow output end of the second heating hopper is fixedly connected with a first heating hopper, the material output end of the first heating hopper is fixedly connected with a third heating hopper, the output end of the second heating hopper is fixedly connected with a fourth heating hopper, the output end of the third heating hopper is fixedly connected with a fifth heating hopper, the output end of the fourth heating hopper is fixedly connected with a first-stage decomposing furnace, and the output end of the first-stage decomposing furnace is fixedly connected with a second-stage decomposing furnace.
The output fixedly connected with of second grade dore furnace ages cauldron, the output fixedly connected with one-level cooling of ageing cauldron is fought, the material output end fixedly connected with first fan that the one-level cooling was fought, the output fixedly connected with second grade cooling of first fan is fought, the air current output end fixedly connected with high temperature high pressure positive blower that the one-level cooling was fought, the output fixedly connected with precombustion chamber of high temperature high pressure positive blower, the air current output end fixedly connected with storage device that the second grade cooling was fought, the air current output end fixedly connected with second fan that first heating was fought, the output fixedly connected with powder of second fan filters collection device, powder filters collection device's output fixedly connected with exhaust treatment device, exhaust treatment device's output fixedly connected with chimney.
In order to enable a product needing to be aged to enter the aging kettle and enable a product not needing to be aged to enter a fifth heating hopper finishing process, a branch is arranged at the output end of the fifth heating hopper, and the output end of the fifth heating hopper is fixedly connected with the input end of the first-stage cooling hopper and the airflow input end of the first-stage decomposing furnace respectively.
In order to open the shunt circuit when producing high-quality calcium oxide, a small part of the decomposed calcium oxide is continuously fed back to the primary decomposing furnace for secondary calcination, the aim is to prevent partial calcium carbonate in the finished product from being decomposed, the secondary calcination can ensure complete decomposition, namely, partial finished product is added into the raw material, the calcination result is higher than the purity of direct calcination of the raw material, the quality of the finished product produced in the decomposing furnace system is improved through the circulating calcination, the output end of the secondary decomposing furnace is provided with the shunt circuit, and the output end of the secondary decomposing furnace is fixedly connected with the input end of the fifth heating hopper.
In order to facilitate the formation of suspension calcination, the limestone powder is conveniently fully preheated, the airflow output end of the second heating hopper is fixedly connected with the material output end of the feeding device, the airflow output end of the second heating hopper is fixedly connected with the input end of the first heating hopper, the airflow output end of the fourth heating hopper is fixedly connected with the material output end of the second heating hopper, the airflow output end of the fourth heating hopper is fixedly connected with the input end of the third heating hopper, the airflow output end of the fifth heating hopper is fixedly connected with the output end of the third heating hopper, and the airflow output end of the fifth heating hopper is fixedly connected with the input end of the fourth heating hopper.
In order to fully utilize the air heat flow after reheating, the number of the output ends of the pre-combustion chambers is two, and the pre-combustion chambers are fixedly connected with the primary decomposing furnace and the secondary decomposing furnace through the two output ends respectively.
In order to conveniently and intensively treat the waste gas and recover the powder again, the output end of the first fan is fixedly connected with the output end of the primary cooling hopper, and the airflow output end of the stone powder preparation device and the airflow output end of the feeding device are fixedly connected with the input end of the second fan.
In order to facilitate the fuel to be used for respectively heating the primary decomposing furnace, the secondary decomposing furnace, the aging kettle and the pre-combustion chamber, fuel gas and pulverized coal are arranged inside the primary decomposing furnace, the secondary decomposing furnace and the aging kettle, and fuel gas is arranged inside the pre-combustion chamber.
In order to facilitate feeding the material of the fifth heating hopper and the material of the aging kettle into the first-stage cooling hopper, the material output end of the fifth heating hopper is fixedly connected with the material output end of the aging kettle, and the material output end of the fifth heating hopper and the material output end of the aging kettle are fixedly connected with the material input end of the first-stage cooling hopper.
In order to conveniently store finished product blanking smoothly, the input ends of the material storage device are two, and the two input ends are respectively fixedly connected with the output end of the first-stage cooling hopper and the output end of the second-stage cooling hopper.
Compared with the prior art, the invention has the beneficial effects that:
1. the production line and the suspension calcination process thereof achieve the purpose of improving the effective calcium content of the product by arranging a fourth heating hopper, a fifth heating hopper, a first-stage decomposing furnace, a second-stage decomposing furnace, an aging kettle, a first-stage cooling hopper, a first fan, a second-stage cooling hopper, a high-temperature high-pressure fan and a precombustion chamber, and solve the problems that the existing production line and the suspension calcination process of high-quality calcium oxide are the first-stage decomposing furnace in the prior art, because calcium carbonate is decomposed to generate calcium oxide and carbon dioxide in the reaction process, if only the first-stage decomposition is carried out, the carbon dioxide concentration can be quickly increased due to the overlarge decomposition amount in unit time, the calcium carbonate decomposition is blocked due to the overlarge concentration, the non-decomposed calcium carbonate is mixed in the calcium oxide of the finished product, the effective calcium content is insufficient, and the actual effective calcium content can only reach eighty five percent or a little higher, the effective calcium content of the product is improved, and the production quality is optimized;
2. the high-quality calcium oxide grading suspension calcining production line and the suspension calcining process thereof achieve the purpose of high adaptability to raw materials by arranging the fourth heating hopper, the fifth heating hopper, the first-stage decomposing furnace, the second-stage decomposing furnace, the aging kettle, the first-stage cooling hopper, the first fan, the second-stage cooling hopper, the high-temperature high-pressure fan and the precombustion chamber, solve the problems that the prior art needs to produce high-quality calcium oxide with ninety percent of effective calcium content, the prior art needs to select limestone with fifty percent or higher of total calcium content in the first-stage decomposing furnace, the high-quality calcium oxide can be produced, the cost of purchasing selected limestone is higher, the direct mining depends on ore vein, the content of limestone ore in the ore vein is unstable, and the decomposing process is also influenced by the concentration of carbon dioxide, and the high-quality calcium oxide can not be obtained, the dependency on the quality of the ore vein is reduced, the dependency on the selected limestone is reduced, and the purchase cost is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a process flow diagram of the present invention.
In the figure: 1. a limestone storage device; 2. a stone powder preparation device; 3. a feeding device; 4. a first heating hopper; 5. a second heating hopper; 6. a third heating hopper; 7. a fourth heating hopper; 8. fifthly, heating a bucket; 9. a first-stage decomposing furnace; 10. a secondary decomposing furnace; 11. an aging kettle; 12. a primary cooling hopper; 13. a first fan; 14. a secondary cooling hopper; 15. a high temperature and high pressure fan; 16. a precombustion chamber; 17. a material storage device; 18. a second fan; 19. a powder filtering and collecting device; 20. an exhaust gas treatment device; 21. and (4) a chimney.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the present invention provides the following technical solutions: high-quality calcium oxide classification suspension calcining production line and suspension calcining process thereof, including limestone storage device 1, limestone storage device 1's output fixedly connected with limestone flour preparation device 2, limestone flour preparation device 2's material output fixedly connected with feeding device 3, feeding device 3's output fixedly connected with second heating fill 5, the air current output end fixedly connected with first heating fill 4 of second heating fill 5, the material output end fixedly connected with third heating fill 6 of first heating fill 4, the output fixedly connected with fourth heating fill 7 of second heating fill 5, the output fixedly connected with fifth heating fill 8 of third heating fill 6, the output fixedly connected with one-level decomposing furnace 9 of fourth heating fill 7, the output fixedly connected with second grade decomposing furnace 10 of one-level decomposing furnace 9.
An output end of the secondary decomposing furnace 10 is fixedly connected with an aging kettle 11, an output end of the aging kettle 11 is fixedly connected with a primary cooling hopper 12, a material output end of the primary cooling hopper 12 is fixedly connected with a first fan 13, an output end of the first fan 13 is fixedly connected with a secondary cooling hopper 14, an airflow output end of the primary cooling hopper 12 is fixedly connected with a high-temperature high-pressure fan 15, an output end of the high-temperature high-pressure fan 15 is fixedly connected with a precombustion chamber 16, an airflow output end of the secondary cooling hopper 14 is fixedly connected with a storage device 17, an airflow output end of the first heating hopper 4 is fixedly connected with a second fan 18, an output end of the second fan 18 is fixedly connected with a powder filtering and collecting device 19, an output end of the powder filtering and collecting device 19 is fixedly connected with a waste gas treatment device 20, and an output end of the waste gas treatment device 20 is fixedly connected with a chimney 21.
In this embodiment: the purpose of improving the effective calcium content of the product is achieved through the fourth heating hopper 7, the fifth heating hopper 8, the first-stage decomposing furnace 9, the second-stage decomposing furnace 10, the aging kettle 11, the first-stage cooling hopper 12, the first fan 13, the second-stage cooling hopper 14, the high-temperature high-pressure fan 15 and the precombustion chamber 16, the problem that the existing high-quality calcium oxide grading suspension calcining production line and the suspension calcining process thereof adopt the first-stage decomposing furnace 9 as the original technology is solved, calcium carbonate is decomposed to generate calcium oxide and carbon dioxide in the reaction process, if only the first-stage decomposition is carried out, the carbon dioxide concentration can be rapidly increased due to too large decomposition amount in unit time, the calcium carbonate is decomposed due to too high concentration, the calcium carbonate is mixed with the calcium carbonate which is not decomposed in the finished product, the effective calcium content is insufficient, the actual effective calcium content can only reach eighty percent or a little high degree is solved, the effective calcium content of the product is improved, the production quality is optimized, the purpose of high adaptability to raw materials is achieved through the fourth heating hopper 7, the fifth heating hopper 8, the first-stage decomposition furnace 9, the second-stage decomposition furnace 10, the aging kettle 11, the first-stage cooling hopper 12, the first fan 13, the second-stage cooling hopper 14, the high-temperature high-pressure fan 15 and the precombustion chamber 16, the problems that high-quality calcium oxide is possibly produced only by selecting limestone with the total calcium content of fifty percent or higher in the prior art if high-quality calcium oxide with the effective calcium content of ninety percent needs to be produced in the prior art are solved, the limestone purchasing and the selecting are higher in cost in the method, the direct mining is very dependent on the ore vein, the ore content of the limestone in the ore vein is unstable, the decomposition process is also influenced by the carbon dioxide concentration, the high-quality calcium oxide is possibly still unavailable are solved, and the dependency on the ore vein quality is reduced, the dependency on the selected limestone is reduced, and the purchasing cost is reduced.
As the technical optimization scheme of the invention, the output end of the fifth heating hopper 8 is provided with a branch, and the output end of the fifth heating hopper 8 is respectively and fixedly connected with the input end of the first-stage cooling hopper 12 and the airflow input end of the first-stage decomposing furnace 9.
In this embodiment: the output end of the fifth heating hopper 8 is respectively fixedly connected with the input end of the first-stage cooling hopper 12 and the airflow input end of the first-stage decomposing furnace 9, so that products needing to be aged can conveniently enter the aging kettle 11, and products not needing to be aged can enter the finishing process of the fifth heating hopper 8.
As the technical optimization scheme of the invention, the output end of the secondary decomposing furnace 10 is provided with a shunt, and the output end of the secondary decomposing furnace 10 is fixedly connected with the input end of the fifth heating hopper 8.
In this embodiment: through the shunt circuit arranged at the output end of the secondary decomposing furnace 10, when high-quality calcium oxide is produced, the shunt circuit is opened, a small part of the calcium oxide which is decomposed is continuously fed back to the primary decomposing furnace 9 for calcination again, the step aims to prevent partial calcium carbonate in a finished product from being decomposed, the calcination again can ensure complete decomposition, namely partial finished product is added into the raw material, the calcination result is higher than the purity of direct calcination of the raw material, and the quality of the finished product produced in the decomposing furnace system is improved through the circulating calcination.
As a technical optimization scheme of the invention, the airflow output end of the second heating hopper 5 is fixedly connected with the material output end of the feeding device 3, the airflow output end of the second heating hopper 5 is fixedly connected with the input end of the first heating hopper 4, the airflow output end of the fourth heating hopper 7 is fixedly connected with the material output end of the second heating hopper 5, the airflow output end of the fourth heating hopper 7 is fixedly connected with the input end of the third heating hopper 6, the airflow output end of the fifth heating hopper 8 is fixedly connected with the output end of the third heating hopper 6, and the airflow output end of the fifth heating hopper 8 is fixedly connected with the input end of the fourth heating hopper 7.
In this embodiment: through the arrangement of the first heating hopper 4, the second heating hopper 5, the third heating hopper 6, the fourth heating hopper 7 and the fifth heating hopper 8, suspension calcination is facilitated to be formed, and limestone powder is conveniently and fully preheated.
As the technical optimization scheme of the invention, the number of the output ends of the precombustion chamber 16 is two, and the precombustion chamber 16 is fixedly connected with the primary decomposing furnace 9 and the secondary decomposing furnace 10 through the two output ends respectively.
In this embodiment: the precombustion chamber 16 is fixedly connected with the first-stage decomposing furnace 9 and the second-stage decomposing furnace 10 through two output ends respectively, so that the air heat flow can be fully utilized after being reheated.
As a technical optimization scheme of the invention, the output end of the first fan 13 is fixedly connected with the output end of the primary cooling hopper 12, and the airflow output end of the stone powder preparation device 2 and the airflow output end of the feeding device 3 are fixedly connected with the input end of the second fan 18.
In this embodiment: collect the air current through first fan 13, conveniently concentrate and handle waste gas and retrieve the powder material once more.
As a technical optimization scheme of the invention, fuel gas and pulverized coal are arranged inside the primary decomposing furnace 9, the secondary decomposing furnace 10 and the aging kettle 11, and fuel gas is arranged inside the precombustion chamber 16.
In this embodiment: through the arranged fuel gas and the coal powder, the primary decomposing furnace 9, the secondary decomposing furnace 10, the aging kettle 11 and the precombustion chamber 16 are respectively heated by utilizing fuel.
As a technical optimization scheme of the invention, a material output end of the fifth heating hopper 8 is fixedly connected with a material output end of the aging kettle 11, and the material output end of the fifth heating hopper 8 and the material output end of the aging kettle 11 are both fixedly connected with a material input end of the first-stage cooling hopper 12.
In this embodiment: the material output end of the fifth heating hopper 8 and the material output end of the aging kettle 11 are fixedly connected with the material input end of the first-stage cooling hopper 12, so that the material of the fifth heating hopper 8 and the material of the aging kettle 11 can be conveniently conveyed into the first-stage cooling hopper 12.
As a technical optimization scheme of the invention, the number of the input ends of the material storage device 17 is two, and the two input ends are respectively and fixedly connected with the output end of the primary cooling hopper 12 and the output end of the secondary cooling hopper 14.
In this embodiment: through the storage device 17 who sets up, the convenient unloading of finished product is stored.
The working principle and the using process of the invention are as follows: the limestone storage device 1 sends limestone into the limestone powder preparation device 2 to be crushed, the crushed limestone powder is put into the feeding device 3, the feeding device 3 is fed through a cyclone return pipe, limestone powder is guided into the first heating hopper 4 to be preheated by heat flow heated by the second heating hopper 5, the first heating hopper 4 guides the material to be preheated in the first stage through heat flow of the third heating hopper 6 to be preheated in the second stage through the second heating hopper 5, the material is preheated in the second stage through the second heating hopper 5 and then guided into the third heating hopper 6 to be preheated in the third stage through heat flow of the fourth heating hopper 7, the material is preheated in the third stage through the third heating hopper 6 and then guided into the fourth heating hopper 7 through heat flow of the fifth heating hopper 8, the raw material enters the first-stage decomposing furnace 9 from the fourth heating hopper 7 to be subjected to first suspension calcination, then enters the second decomposing furnace 10 to be subjected to second suspension calcination, and then the product to be aged enters the aging kettle 11, products which do not need to be aged enter a fifth heating hopper 8 finishing flow, then products from an aging kettle 11 or the fifth heating hopper 8 fall into a first-stage cooling hopper 12, enter a cooling part, directly discharge the products to a storage device 17 or fall into a second-stage cooling hopper 14 for heat exchange and then discharge the products to the storage device 17, meanwhile, a first fan 13 is filled with common air, the hot products falling along with the first-stage cooling hopper 12 are subjected to heat exchange and enter the second-stage cooling hopper 14, the products are separated from air flow through a cyclone return pipe, the products fall, the air flow rises and enters the first-stage cooling hopper 12 to be subjected to heat exchange with the hot products again, the products enter a high-temperature high-pressure fan 15, the products enter a precombustion chamber 16 after being pressurized by the high-temperature high-pressure fan 15, the temperature is raised again by seven hundred to eight degrees centigrade, and the products enter a first-stage decomposing furnace 9 and a second-stage decomposing furnace 10, then enters a fifth heating bucket 8 or an aging kettle 11 from a secondary decomposing furnace 10, enters the fifth heating bucket 8, then sequentially enters a fourth heating bucket 7, a third heating bucket 6, a first heating bucket 4, a second heating bucket 5 and the first heating bucket 4 for heat exchange, preheats raw materials, and generates waste gas and powder generated by the stone powder preparation device 2 and the feeding device 3 enter a powder filtering and collecting device 19 through a second fan 18 for filtering and collecting, then enters a waste gas treatment device 20 for treatment, and then is discharged from a chimney 21.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. High-quality calcium oxide is hierarchical suspension calcines production line, including limestone storage device, its characterized in that: the output end of the limestone storage device is fixedly connected with a limestone powder preparation device, the material output end of the limestone powder preparation device is fixedly connected with a feeding device, the output end of the feeding device is fixedly connected with a second heating hopper, the airflow output end of the second heating hopper is fixedly connected with a first heating hopper, the material output end of the first heating hopper is fixedly connected with a third heating hopper, the output end of the second heating hopper is fixedly connected with a fourth heating hopper, the output end of the third heating hopper is fixedly connected with a fifth heating hopper, the output end of the fourth heating hopper is fixedly connected with a primary decomposing furnace, and the output end of the primary decomposing furnace is fixedly connected with a secondary decomposing furnace;
the output fixedly connected with of second grade dore furnace ages cauldron, the output fixedly connected with one-level cooling of ageing cauldron is fought, the material output end fixedly connected with first fan that the one-level cooling was fought, the output fixedly connected with second grade cooling of first fan is fought, the air current output end fixedly connected with high temperature high pressure positive blower that the one-level cooling was fought, the output fixedly connected with precombustion chamber of high temperature high pressure positive blower, the air current output end fixedly connected with storage device that the second grade cooling was fought, the air current output end fixedly connected with second fan that first heating was fought, the output fixedly connected with powder of second fan filters collection device, powder filters collection device's output fixedly connected with exhaust treatment device, exhaust treatment device's output fixedly connected with chimney.
2. The high-quality calcium oxide classifying and suspending calcination production line according to claim 1, characterized in that: the output end of the fifth heating hopper is provided with a branch, and the output end of the fifth heating hopper is respectively fixedly connected with the input end of the first-stage cooling hopper and the airflow input end of the first-stage decomposing furnace.
3. The high-quality calcium oxide classifying and suspending calcination production line according to claim 1, characterized in that: the output end of the second-stage decomposing furnace is provided with a branch circuit, and the output end of the second-stage decomposing furnace is fixedly connected with the input end of the fifth heating hopper.
4. The high-quality calcium oxide classifying and suspending calcination production line according to claim 1, characterized in that: the air flow output end of the second heating hopper is fixedly connected with the material output end of the feeding device, the air flow output end of the second heating hopper is fixedly connected with the input end of the first heating hopper, the air flow output end of the fourth heating hopper is fixedly connected with the material output end of the second heating hopper, the air flow output end of the fourth heating hopper is fixedly connected with the input end of the third heating hopper, the air flow output end of the fifth heating hopper is fixedly connected with the output end of the third heating hopper, and the air flow output end of the fifth heating hopper is fixedly connected with the input end of the fourth heating hopper.
5. The high-quality calcium oxide classifying and suspending calcination production line according to claim 1, characterized in that: the output ends of the precombustion chambers are two, and the precombustion chambers are fixedly connected with the primary decomposing furnace and the secondary decomposing furnace respectively through the two output ends.
6. The high-quality calcium oxide classifying and suspending calcination production line according to claim 1, characterized in that: the output end of the first fan is fixedly connected with the output end of the primary cooling hopper, and the airflow output end of the stone powder preparation device and the airflow output end of the feeding device are fixedly connected with the input end of the second fan.
7. The high-quality calcium oxide classifying and suspending calcination production line according to claim 1, characterized in that: the inside of one-level decomposing furnace, second grade decomposing furnace and ageing cauldron all is provided with gas and buggy, the inside of antechamber is provided with the gas.
8. The high-quality calcium oxide classifying and suspending calcination production line according to claim 1, characterized in that: the material output end of the fifth heating hopper is fixedly connected with the material output end of the aging kettle, and the material output end of the fifth heating hopper and the material output end of the aging kettle are fixedly connected with the material input end of the first-stage cooling hopper.
9. The high-quality calcium oxide classifying and suspending calcination production line according to claim 1, characterized in that: the input of storage device is two, and two inputs respectively with the output of one-level cooling fill and the output fixed connection of second grade cooling fill.
10. The high-quality calcium oxide graded suspension calcination process flow comprises the following steps: the limestone storage device sends limestone into the limestone powder preparation device to be crushed, the crushed limestone powder is put into the feeding device, the feeding device is fed through a cyclone return pipe, the limestone powder is guided into the first heating hopper to be preheated by heat flow heated by the second heating hopper, the first heating hopper guides the material to be preheated firstly and then to be preheated secondly by the heat flow of the third heating hopper, the material is preheated secondly by the second heating hopper and then to be preheated thirdly by the heat flow of the fourth heating hopper, the material is preheated thirdly and then to be guided into the fourth heating hopper by the heat flow of the fifth heating hopper, the raw material enters the first-stage decomposing furnace from the fourth heating hopper to be subjected to first suspension calcination, then enters the second-stage decomposing furnace to be subjected to second suspension calcination, then the product needing to be aged enters the aging kettle, the product not needing to be aged enters the fifth heating hopper to be treated, then the product from the aging kettle or the fifth heating bucket falls into a first-stage cooling bucket and enters a cooling part, the product part is directly discharged into a material storage device after being subjected to heat exchange with the flushed air and fuel gas, or the product part falls into a second-stage cooling bucket and then is discharged into a material storage device after being subjected to heat exchange, meanwhile, the first fan is filled with common air, the hot product falling along with the first-stage cooling bucket is subjected to heat exchange, the hot product enters a second-stage cooling bucket, the product is separated from the air flow through a cyclone return pipe, the product falls, the air flow rises and enters the first-stage cooling bucket, the hot product is subjected to heat exchange again, the hot product enters a high-temperature high-pressure fan, the high-temperature high-pressure fan is pressurized and then enters a precombustion chamber, the temperature is increased by seven hundred to eight hundred ℃ again, the product enters a first-stage decomposing furnace and a second-stage decomposing furnace, then enters a fifth heating bucket or an aging kettle from the second-stage decomposing furnace, the fifth heating bucket and then sequentially enters a fourth heating bucket, And the third heating hopper, the first heating hopper, the second heating hopper and the first heating hopper exchange heat to preheat raw materials, and the generated waste gas and powder generated by the stone powder preparation device and the feeding device enter the powder filtering and collecting device through the second fan to be filtered and collected, then enter the waste gas treatment device to be treated and then are discharged from a chimney.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860345A (en) * | 2021-10-08 | 2021-12-31 | 浙江钙科机械设备有限公司 | Automatic control system for calcium oxide classification suspension calcination process |
| CN116462425A (en) * | 2023-05-18 | 2023-07-21 | 浙江钙科科技股份有限公司 | Fluidized calcium oxide suspension calcination equipment and process based on Internet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2411669A1 (en) * | 1973-03-14 | 1974-09-19 | Smidth & Co As F L | METHOD AND DEVICE FOR CALCINATING POWDERED MATERIAL |
| CN103880302A (en) * | 2014-02-21 | 2014-06-25 | 米长山 | Technique method for producing active lime |
| CN105906223A (en) * | 2016-06-02 | 2016-08-31 | 浙江钙科机械设备有限公司 | Lime powder suspension calcining production line and suspension calcining process thereof |
| CN207002588U (en) * | 2017-07-10 | 2018-02-13 | 合肥水泥研究设计院 | A kind of active powder lime two level suspension calcining device |
| CN110498622A (en) * | 2019-09-12 | 2019-11-26 | 广西四维材料科技股份有限公司 | A kind of method of the outer decomposing and calcining calcium oxide of powder multistage suspension preheating kiln |
| CN111977995A (en) * | 2020-09-23 | 2020-11-24 | 合肥水泥研究设计院有限公司 | Powder lime calcining and reforming system based on novel dry-process cement clinker calcining system |
-
2021
- 2021-04-28 CN CN202110463261.7A patent/CN113185152A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2411669A1 (en) * | 1973-03-14 | 1974-09-19 | Smidth & Co As F L | METHOD AND DEVICE FOR CALCINATING POWDERED MATERIAL |
| CN103880302A (en) * | 2014-02-21 | 2014-06-25 | 米长山 | Technique method for producing active lime |
| CN105906223A (en) * | 2016-06-02 | 2016-08-31 | 浙江钙科机械设备有限公司 | Lime powder suspension calcining production line and suspension calcining process thereof |
| CN207002588U (en) * | 2017-07-10 | 2018-02-13 | 合肥水泥研究设计院 | A kind of active powder lime two level suspension calcining device |
| CN110498622A (en) * | 2019-09-12 | 2019-11-26 | 广西四维材料科技股份有限公司 | A kind of method of the outer decomposing and calcining calcium oxide of powder multistage suspension preheating kiln |
| CN111977995A (en) * | 2020-09-23 | 2020-11-24 | 合肥水泥研究设计院有限公司 | Powder lime calcining and reforming system based on novel dry-process cement clinker calcining system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113860345A (en) * | 2021-10-08 | 2021-12-31 | 浙江钙科机械设备有限公司 | Automatic control system for calcium oxide classification suspension calcination process |
| CN116462425A (en) * | 2023-05-18 | 2023-07-21 | 浙江钙科科技股份有限公司 | Fluidized calcium oxide suspension calcination equipment and process based on Internet |
| CN116462425B (en) * | 2023-05-18 | 2023-10-20 | 浙江钙科科技股份有限公司 | Fluidized calcium oxide suspension calcination equipment and process based on Internet |
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