CN115784641B - Production process and production device for improving quality of active calcium oxide - Google Patents
Production process and production device for improving quality of active calcium oxide Download PDFInfo
- Publication number
- CN115784641B CN115784641B CN202211551179.0A CN202211551179A CN115784641B CN 115784641 B CN115784641 B CN 115784641B CN 202211551179 A CN202211551179 A CN 202211551179A CN 115784641 B CN115784641 B CN 115784641B
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- Prior art keywords
- heat conduction
- calciner
- ore
- pipe
- production
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 title claims abstract description 28
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 title abstract description 23
- 239000000292 calcium oxide Substances 0.000 title abstract description 22
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 30
- 238000001354 calcination Methods 0.000 claims abstract description 26
- 239000000446 fuel Substances 0.000 claims abstract description 23
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 15
- 239000004449 solid propellant Substances 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000011049 filling Methods 0.000 claims abstract description 4
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 238000004806 packaging method and process Methods 0.000 claims abstract description 4
- 238000010298 pulverizing process Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000002994 raw material Substances 0.000 abstract description 20
- 229910021532 Calcite Inorganic materials 0.000 abstract description 14
- 230000000694 effects Effects 0.000 abstract description 2
- 235000012255 calcium oxide Nutrition 0.000 description 19
- 230000006872 improvement Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 235000019738 Limestone Nutrition 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Landscapes
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to the technical field of active calcium oxide production, in particular to a handleThe production process and the production device of the high-activity calcium oxide quality comprise the following steps: s is S 1 : arranging a heat conduction pipe in the calciner, and filling fixed fuel in the heat conduction pipe; s is S 2 : taking calcium carbonate ore or calcite, and processing at least one through hole on the calcium carbonate ore or calcite; s is S 3 : placing calcium carbonate ore or calcite into a calciner; s is S 4 : adding solid fuel into a calciner, preheating for 1-2h at 350-450 ℃, heating to 850-950 ℃, and calcining for 8-10h; s is S 5 : taking out, cooling, pulverizing, and packaging. Solid fuel is filled in the heat conducting pipe, calcination is carried out from the inside of the ore raw material, and the fuel in the calciner is calcined from the outside of the ore raw material, so that the calcination efficiency is greatly improved, the calcination is more thorough, and the production efficiency and the production quality are improved; meanwhile, the production process avoids the problem that the raw ore is difficult to separate from ash after being crushed.
Description
Technical Field
The invention relates to the technical field of active calcium oxide production, in particular to a production process and a production device for improving the quality of active calcium oxide.
Background
The traditional lime kiln has the disadvantages of large pollution, poor quality, high energy consumption and low yield, and the quality of the burnt lime can not meet the quality requirement. The traditional production of calcium oxide generally adopts limestone as raw material, and the limestone and solid fuel are mixed together and put into a kiln body for calcination, so that the produced calcium oxide is easy to dope ash, the ash is not easy to separate, and the quality of the calcium oxide is seriously affected.
The invention patent with publication number of CN111410442A discloses a high-quality production process of active calcium oxide, which utilizes a heat conducting adhesive tape to have excellent heat conducting and radiating effects, can transfer high temperature in a calcining box into the interior of blocky calcite, reduces the temperature difference between the surface and the interior of the blocky calcite, and increases the separation amount of titanium dioxide in the calcining process of the blocky calcite, thereby realizing the preparation of high-quality calcium oxide. However, on one hand, a large number of heat conducting adhesive tapes are needed in the production process, and the production cost is high; on the other hand, the heat-conducting adhesive tape needs to be removed after the calcination is completed, and the process is relatively complex and time-consuming; furthermore, it still has the problem of calcium oxide doping ash after calcination.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a production process for improving the quality of active calcium oxide and a production device for improving the quality of active calcium oxide.
The invention solves the technical problems by the following technical means:
the production process for improving the quality of the active calcium oxide comprises the following steps:
S 1 : arranging a heat conduction pipe in the calciner, and filling fixed fuel in the heat conduction pipe, wherein a heat conduction hole communicated with the inside of the heat conduction pipe is arranged on the side wall of the heat conduction pipe;
S 2 : at least one through hole is processed on the calcium carbonate ore or calcite, wherein the distance between two adjacent through holes is the same as the distance between adjacent heat conducting pipes in the calciner;
S 3 : placing the calcium carbonate ore or calcite into a calciner, and enabling each through hole on the calcium carbonate ore or calcite to be internally provided with a heat-conducting pipe in a penetrating way;
S 4 : adding solid fuel into a calciner, preheating for 1-2h at 350-450 ℃, heating to 850-950 ℃, and calcining for 8-10h;
S 5 : taking out, cooling, pulverizing, and packaging.
As an improvement of the technical proposal, the production process for improving the quality of the active calcium oxide comprises the following step S 2 In the process, through holes are processed on calcium carbonate ore or calcite through a spiral reamer.
As an improvement of the technical scheme, the production process for improving the quality of the active calcium oxide is characterized in that the heat conducting pipe is an aluminum pipe or a copper pipe.
The production device for improving the quality of the activated calcium oxide comprises a calciner; the calciner has an inner chamber;
a heat conduction pipe is arranged in the inner cavity; the heat conducting pipe is vertically arranged; and heat conducting holes communicated with the inside of the heat conducting pipe are distributed on the side wall of the heat conducting pipe.
As an improvement of the technical scheme, the production device for improving the quality of the activated calcium oxide is characterized in that a bracket is arranged at the bottom of the inner cavity; the bottom end of the heat conducting pipe is detachably fixed on the bracket; the bottom of the heat conduction pipe is provided with an electromagnetic valve.
As an improvement of the technical scheme, the production device for improving the quality of the activated calcium oxide is characterized in that the top end of the calciner is provided with a fuel adding bin; the fuel adding bin extends into the inner cavity; the upper end of the heat conducting pipe is fixed on the fuel adding bin, and the inside of the heat conducting pipe is communicated with the inside of the fuel adding bin; the upper end of the fuel adding bin is provided with an upper cover.
The invention has the advantages that: the ore raw material is provided with a through hole, and a heat conduction pipe is arranged in the through hole, so that the calcining heat is directly led into the raw material ore, the calcining is more thorough, and the quality of the active calcium oxide is further improved; more importantly, solid fuel is filled in the heat conducting pipe, calcination is carried out from the inside of the ore raw material, and the fuel in the calciner is calcined from the outside of the ore raw material, so that the calcination efficiency is greatly improved, the calcination is more thorough, and the production efficiency and the production quality are improved; meanwhile, the production process can completely calcine the raw material ore without crushing the raw material ore, so that the problem that the raw material ore is difficult to separate from ash is avoided, and furthermore, the ore raw material is arranged on the heat-conducting pipe in a penetrating way, so that the separation of the calcined ore and the ash is further facilitated.
Drawings
Fig. 1 is a schematic diagram of a structure in which a through hole is formed in a raw ore.
Fig. 2 is a schematic structural view of the production device of the present invention.
Fig. 3 is a schematic structural view of a heat pipe according to the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The embodiment, referring to fig. 1, 2 and 3, of the production process for improving the quality of activated calcium oxide comprises the following steps:
S 1 : arranging a heat conduction pipe in the calciner, and filling fixed fuel in the heat conduction pipe, wherein a heat conduction hole communicated with the inside of the heat conduction pipe is arranged on the side wall of the heat conduction pipe;
S 2 : at least one through hole is processed on the calcium carbonate ore or calcite, wherein the distance between two adjacent through holes is the same as the distance between adjacent heat conducting pipes in the calciner;
S 3 : placing the calcium carbonate ore or calcite into a calciner, and enabling each through hole on the calcium carbonate ore or calcite to be internally provided with a heat-conducting pipe in a penetrating way;
S 4 : adding solid fuel into a calciner, preheating for 1-2h at 350-450 ℃, heating to 850-950 ℃, and calcining for 8-10h;
S 5 : taking out, cooling, pulverizing, and packaging.
As an improvement of the above technical solution, in the step S2, a through hole is machined in the calcium carbonate ore or calcite by a spiral reamer.
As an improvement of the technical scheme, the heat conduction pipe is an aluminum pipe or a copper pipe.
According to the calcination method, through holes are formed in ore raw materials, and the heat conducting pipes are arranged in the through holes, so that calcination heat is directly led into the raw material ores, calcination is more thorough, and the quality of active calcium oxide is further improved; more importantly, during calcination, the inside of the heat conduction pipe is combusted, combustion flame passes through the heat conduction holes to heat the inside of the solid fuel, combustion heat heats the inside of the ore raw material through the heat conduction holes and the heat conduction pipe, solid fuel is filled in the heat conduction pipe, the inside of the ore raw material is calcined, and the fuel in the calciner is calcined from the outside of the ore raw material and combined inside and outside, so that the calcination efficiency is greatly improved, the calcination is more thorough, and the production efficiency and the production quality are improved; meanwhile, the production process can completely calcine the raw material ore without crushing the raw material ore, so that the problem that the raw material ore is difficult to separate from ash is avoided, and furthermore, the ore raw material is arranged on the heat-conducting pipe in a penetrating way, so that the separation of the calcined ore and the ash is further facilitated.
The production device for improving the quality of the activated calcium oxide comprises a calciner 1; the calciner 1 has an inner chamber 11;
a heat conducting pipe 12 is arranged in the inner chamber 11; the heat conduction pipe 12 is vertically arranged; the side wall of the heat conducting pipe 12 is provided with heat conducting holes 121 communicated with the inside of the heat conducting pipe 12.
When calcium oxide is produced, raw ore 9 is inserted on a heat conduction pipe 12 in a calciner 1 in a sugar-gourd shape, solid fuel is filled in the heat conduction pipe 12, and the solid fuel is added into an inner cavity 11 and then calcined; since the raw ore 9 is required to be inserted into the heat-conducting pipe 12, it is necessary to perform punching processing on the raw ore, to punch the raw ore with a spiral reamer, to determine the number of holes to be punched according to the size of the raw ore, and to have the same distance between adjacent through holes as the distance between adjacent heat-conducting pipes 12.
As an improvement of the technical scheme, the bottom of the inner chamber 11 is provided with a bracket 13; the bottom end of the heat conduction pipe 12 is detachably fixed on the bracket 13; the bottom end of the heat conduction pipe 12 is provided with a solenoid valve 121.
The support 13 is used for supporting and fixing the heat conducting pipe 12, the heat conducting pipe 12 is detachably fixed on the support 13, and after calcination, calcium oxide and the heat conducting pipe 12 are taken out together, so that material is taken out conveniently, the detachable installation mode can be a bolt installation mode, of course, in order to facilitate material taking, the support 13 can be arranged to be lifting type, only such a concept is provided, a specific implementation mode can be realized through the prior art, and repeated description is omitted here. The electromagnetic valve 121 is provided to prevent the fixed fuel from being discharged from the bottom end of the heat transfer pipe 12 on the one hand, and to open the electromagnetic valve 121 to discharge ash after the solid fuel is burned on the other hand.
As an improvement of the technical proposal, the top end of the calciner 1 is provided with a fuel adding bin 14; the fuel adding bin 14 extends into the inner chamber 11; the upper end of the heat conduction pipe 11 is fixed on the fuel adding bin 14, and the inside of the heat conduction pipe 11 is communicated with the inside of the fuel adding bin 14; the upper end of the fuel adding bin 14 is provided with an upper cover.
During calcination, the fuel in the inner chamber 11 and the heat conducting pipe 12 is difficult to support the whole combustion process, wherein the fuel in the inner chamber 11 is easy to add, but the fuel in the heat conducting pipe 12 is difficult to add, and the fuel in the heat conducting pipe 12 is convenient to supplement during calcination by arranging the fuel adding bin 14 communicated with the heat conducting pipe 12.
It is noted that relational terms such as first and second, and the like, if any, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. The production process for improving the quality of the activated calcium oxide is characterized by comprising the following steps of:
s1: arranging a heat conduction pipe in the calciner, and filling fixed fuel in the heat conduction pipe, wherein a heat conduction hole communicated with the inside of the heat conduction pipe is arranged on the side wall of the heat conduction pipe;
s2: at least one through hole is processed on the calcium carbonate ore, wherein the distance between two adjacent through holes is the same as the distance between adjacent heat conducting pipes in the calciner;
s3: placing the calcium carbonate ore into a calciner, and enabling each through hole on the calcium carbonate ore to be internally provided with a heat conduction pipe in a penetrating way;
s4: adding solid fuel into a calciner, preheating for 1-2h at 350-450 ℃, heating to 850-950 ℃, and calcining for 8-10h;
s5: taking out, cooling, pulverizing, and packaging;
the heat conduction pipe is an aluminum pipe or a copper pipe.
2. The process for improving the quality of activated calcium oxide according to claim 1, wherein: in step S2, a through hole is processed on the calcium carbonate ore through a spiral reamer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211551179.0A CN115784641B (en) | 2022-12-05 | 2022-12-05 | Production process and production device for improving quality of active calcium oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211551179.0A CN115784641B (en) | 2022-12-05 | 2022-12-05 | Production process and production device for improving quality of active calcium oxide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115784641A CN115784641A (en) | 2023-03-14 |
| CN115784641B true CN115784641B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211551179.0A Active CN115784641B (en) | 2022-12-05 | 2022-12-05 | Production process and production device for improving quality of active calcium oxide |
Country Status (1)
| Country | Link |
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| CN (1) | CN115784641B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB238929A (en) * | 1924-05-22 | 1925-08-24 | British & Foreign Lime & Power | Improvements relating to the burning of limestone and like carbonates |
| CN2240525Y (en) * | 1995-11-21 | 1996-11-20 | 冯国志 | External combusion type active lime kiln |
| CN201634586U (en) * | 2010-02-08 | 2010-11-17 | 建德市天石碳酸钙有限责任公司 | Pure lime calcining furnace |
| CN105217974A (en) * | 2015-08-31 | 2016-01-06 | 建德市新安江永合塑胶厂 | High-quality calcium oxide production technique and device |
| CN111410442A (en) * | 2020-04-17 | 2020-07-14 | 安徽东方钙业有限公司 | High-quality production process of active calcium oxide |
| CN111777343A (en) * | 2020-08-20 | 2020-10-16 | 中钢集团鞍山热能研究院有限公司 | Efficient and environment-friendly tower type mixed combustion light-burning magnesium shaft kiln and production process thereof |
| CN113548814A (en) * | 2021-08-09 | 2021-10-26 | 营口公牛矿山机械设备有限公司 | Environment-friendly baking process, environment-friendly baking kiln pipe and environment-friendly baking shaft kiln |
-
2022
- 2022-12-05 CN CN202211551179.0A patent/CN115784641B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB238929A (en) * | 1924-05-22 | 1925-08-24 | British & Foreign Lime & Power | Improvements relating to the burning of limestone and like carbonates |
| CN2240525Y (en) * | 1995-11-21 | 1996-11-20 | 冯国志 | External combusion type active lime kiln |
| CN201634586U (en) * | 2010-02-08 | 2010-11-17 | 建德市天石碳酸钙有限责任公司 | Pure lime calcining furnace |
| CN105217974A (en) * | 2015-08-31 | 2016-01-06 | 建德市新安江永合塑胶厂 | High-quality calcium oxide production technique and device |
| CN111410442A (en) * | 2020-04-17 | 2020-07-14 | 安徽东方钙业有限公司 | High-quality production process of active calcium oxide |
| CN111777343A (en) * | 2020-08-20 | 2020-10-16 | 中钢集团鞍山热能研究院有限公司 | Efficient and environment-friendly tower type mixed combustion light-burning magnesium shaft kiln and production process thereof |
| CN113548814A (en) * | 2021-08-09 | 2021-10-26 | 营口公牛矿山机械设备有限公司 | Environment-friendly baking process, environment-friendly baking kiln pipe and environment-friendly baking shaft kiln |
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| Publication number | Publication date |
|---|---|
| CN115784641A (en) | 2023-03-14 |
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