CN220317649U - Calcium oxide production preheating device - Google Patents
Calcium oxide production preheating device Download PDFInfo
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- CN220317649U CN220317649U CN202321819080.4U CN202321819080U CN220317649U CN 220317649 U CN220317649 U CN 220317649U CN 202321819080 U CN202321819080 U CN 202321819080U CN 220317649 U CN220317649 U CN 220317649U
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- Prior art keywords
- preheating
- crushing
- calcium oxide
- cylinder body
- spiral feeding
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- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 239000000292 calcium oxide Substances 0.000 title claims abstract description 27
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 abstract description 27
- 238000010438 heat treatment Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 4
- 238000004804 winding Methods 0.000 abstract 1
- 235000012255 calcium oxide Nutrition 0.000 description 18
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 235000019738 Limestone Nutrition 0.000 description 4
- 239000006028 limestone Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 239000002803 fossil fuel Substances 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- -1 chalk Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
Including broken mechanism, spiral feeding mechanism and preheat the collection mechanism, broken mechanism includes broken chamber, and the feeder hopper with set up the crushing roller in broken intracavity portion, broken mechanism below is connected with spiral feeding mechanism, and spiral feeding mechanism connects broken mechanism and preheat the collection mechanism, preheat the collection mechanism including preheating barrel and collecting box, preheat the outside winding of barrel and be provided with electromagnetic induction coil. The preheating device for producing calcium oxide can fully crush and disperse materials before preheating, increases the heating area of the materials, ensures that the materials are more fully preheated, preheats the materials in the preheating cylinder body through electromagnetic heating, has quick temperature rise and good preheating effect, is green and clean, can collect the preheated materials through the collecting box arranged at the bottom of the preheating cylinder body, is simple and convenient to operate, and improves the ore preheating efficiency in the production of calcium oxide.
Description
Technical Field
The utility model relates to the technical field of calcium oxide production, in particular to a preheating device for calcium oxide production.
Background
Lime is an air hardening inorganic cementing material with calcium oxide as a main component. Lime is the cementing material which is used by human beings at the earliest time, has a wide application range in civil engineering, can be used in medicine in China, and is an air hardening inorganic cementing material taking calcium oxide as a main component.
Lime is produced by calcining products with high calcium carbonate content such as limestone, dolomite, chalk, shell and the like at 900-1100 ℃, in the production process of calcium oxide, firstly, the limestone enters a calcining system for preheating through a feeding system, the preheating temperature reaches about 1100 ℃, 30% of the limestone is decomposed to generate quicklime, the preheated lime is pushed into a rotary kiln, the temperature in the rotary kiln reaches about 1250 ℃, and the rest lime can be completely decomposed into the quicklime at high temperature. The traditional preheating device for producing calcium oxide lacks a crushing stirring mechanism, mineral raw materials such as limestone and the like are not sufficiently crushed, the heating surface is small during preheating, the mineral raw materials are not sufficiently heated, the preheating efficiency of calcium oxide production is reduced, the traditional preheating device is used for preheating and heating by using fossil fuel combustion heat, and produced industrial waste gas can pollute the environment.
Disclosure of Invention
The utility model aims to provide a preheating device for calcium oxide production, which solves the problems of insufficient raw material crushing, small heating surface during preheating and insufficient heating of mineral raw materials.
In order to achieve the aim, the utility model provides a calcium oxide production preheating device which comprises a crushing mechanism, a spiral feeding mechanism and a preheating collecting mechanism, wherein the crushing mechanism is connected with the spiral feeding mechanism, and the spiral feeding mechanism is connected with the preheating collecting mechanism; the crushing mechanism comprises a crushing cavity, a feeding hopper is arranged on the crushing cavity, two crushing rollers are symmetrically arranged in the crushing cavity, two ends of each crushing roller are connected with the inner wall of the crushing cavity, a discharge hole is formed in the lower portion of the crushing cavity, and the spiral feeding mechanism is arranged below the discharge hole; the preheating collecting mechanism is arranged below the spiral feeding mechanism and comprises a preheating cylinder body, an electromagnetic induction coil is wound outside the preheating cylinder body, and an air vent is arranged on the preheating cylinder body.
Preferably, the outer edge of the crushing roller is provided with crushing teeth.
Preferably, the spiral feeding mechanism comprises a feeding cavity, a rotary driving motor is arranged on one side, close to the discharge hole, of the feeding cavity, the output end of the rotary driving motor is connected with a rotating shaft, the rotating shaft penetrates through the feeding cavity, and spiral blades are wound on the outer side of the rotating shaft.
Preferably, an insulating layer is arranged on the outer side of the preheating cylinder body.
Preferably, a collecting box is arranged below the preheating cylinder body.
Preferably, an automatic opening and closing baffle is arranged at the top of the collecting box.
Therefore, the preheating device for producing calcium oxide adopting the structure has the following advantages
The beneficial effects are that:
(1) Through the setting of crushing mechanism, can fully break the material before preheating, increase the heated area of material, make the material preheat more abundant.
(2) Through screw feeding mechanism's setting, make the material can receive abundant stirring dispersion when carrying, make the material disperse more even before getting into preheating the barrel.
(3) The preheating cylinder body is externally wound with the electromagnetic induction coil, materials in the preheating cylinder body are preheated through electromagnetic heating, the heating speed is high, the preheating effect is good, compared with fossil fuel heating preheating, the preheating cylinder body is more green and clean, the preheated materials can be collected through the collecting box arranged at the bottom of the preheating cylinder body, the operation is simple and convenient, and the ore preheating efficiency in the production of calcium oxide is improved.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
FIG. 1 is a schematic diagram of a preheating device for calcium oxide production according to an embodiment of the present utility model;
in the figure: 1. a crushing cavity; 2. a feed hopper; 3. a crushing roller; 4. a feed cavity; 5. a rotary drive motor; 6. a rotating shaft; 7. a helical blade; 8. preheating a cylinder; 9. an electromagnetic induction coil; 10. a vent; 11. a heat preservation layer; 12. a collection box; 13. the baffle is automatically opened and closed.
Detailed Description
The technical scheme of the utility model is further described below through the attached drawings and the embodiments.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Examples
A preheating device for calcium oxide production is shown in fig. 1, and comprises a crushing mechanism, a spiral feeding mechanism and a preheating collecting mechanism, wherein the crushing mechanism is connected with the spiral feeding mechanism, and the spiral feeding mechanism is connected with the preheating collecting mechanism. The crushing mechanism comprises a crushing cavity 1, a feeding hopper 2 is arranged on the crushing cavity 1, two crushing rollers 3 are symmetrically arranged in the crushing cavity 1, two ends of each crushing roller 3 are connected with the inner wall of the crushing cavity 1, crushing teeth are arranged on the outer edges of the crushing rollers 3, a discharge hole is formed in the lower portion of the crushing cavity 1, and a spiral feeding mechanism is arranged below the discharge hole. The spiral feeding mechanism comprises a feeding cavity 4, a rotary driving motor 5 is arranged on one side, close to a discharge hole, of the feeding cavity 4, a rotating shaft 6 is connected to the output end of the rotary driving motor 5, the rotating shaft 6 penetrates through the feeding cavity 4, and spiral blades 7 are wound on the outer side of the rotating shaft 6. The preheating and collecting mechanism is arranged below the spiral feeding mechanism and comprises a preheating barrel 8, an electromagnetic induction coil 9 is wound outside the preheating barrel 8, a vent 10 is arranged on the preheating barrel 8, an insulating layer 11 is arranged on the outer side of the preheating barrel 8, a collecting box 12 is arranged below the preheating barrel 8, and an automatic opening and closing baffle 13 is arranged at the top of the collecting box 12.
During operation, raw ore is put into the crushing cavity 1 through the feed hopper 2, the crushing roller 3 is arranged below the feed hopper 2, and the raw ore is crushed and dispersed under the extrusion crushing effect of the crushing roller 3 and falls into the spiral feeding mechanism from the discharge hole. The rotary driving motor 5 is started, the rotating shaft 6 drives the helical blade 7 to rotate so as to convey materials, the helical blade 7 can play a certain stirring and dispersing role when conveying the materials, and broken and dispersed raw ore falls into the preheating barrel 8 after being conveyed to the upper part of the preheating barrel 8 through the helical feeding mechanism. An electromagnetic induction coil 9 is wound on the outer side of the preheating cylinder 8, and a power supply connected with the electromagnetic induction coil 9 is connected to preheat materials in the preheating cylinder 8. The preheating cylinder 8 is provided with a vent 10, so that gas generated by preheating and decomposing the raw ore can be discharged at any time. The collecting box 12 is arranged below the preheating cylinder 8, and an automatic opening and closing baffle 13 arranged at the top of the collecting box 12 is started after the preheating is finished, so that the preheated materials fall into the collecting box 12, and the preheating and collecting of the materials are completed.
Therefore, the calcium oxide production preheating device adopting the structure can fully crush the materials before preheating by the arrangement of the crushing mechanism, so that the heating area of the materials is increased, and the materials are fully preheated. Through screw feeding mechanism's setting, make the material can receive abundant stirring dispersion when carrying, make the material disperse more even before getting into preheating the barrel. The preheating cylinder body is externally wound with the electromagnetic induction coil, materials in the preheating cylinder body are preheated through electromagnetic heating, the heating speed is high, the preheating effect is good, compared with fossil fuel heating preheating, the preheating cylinder body is more green and clean, the preheated materials can be collected through the collecting box arranged at the bottom of the preheating cylinder body, the operation is simple and convenient, and the ore preheating efficiency in the production of calcium oxide is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.
Claims (6)
1. The utility model provides a calcium oxide production preheating device, includes broken mechanism, spiral feeding mechanism and preheats collection mechanism, its characterized in that: the crushing mechanism is connected with the spiral feeding mechanism, and the spiral feeding mechanism is connected with the preheating collecting mechanism;
the crushing mechanism comprises a crushing cavity, a feeding hopper is arranged on the crushing cavity, two crushing rollers are symmetrically arranged in the crushing cavity, two ends of each crushing roller are connected with the inner wall of the crushing cavity, a discharge hole is formed in the lower portion of the crushing cavity, and the spiral feeding mechanism is arranged below the discharge hole;
the preheating collecting mechanism is arranged below the spiral feeding mechanism and comprises a preheating cylinder body, an electromagnetic induction coil is wound outside the preheating cylinder body, and an air vent is arranged on the preheating cylinder body.
2. A calcium oxide production preheating device according to claim 1, characterized in that: crushing teeth are arranged on the outer edge of the crushing roller.
3. A calcium oxide production preheating device according to claim 2, characterized in that: the spiral feeding mechanism comprises a feeding cavity, a rotary driving motor is arranged on one side, close to the discharge hole, of the feeding cavity, the output end of the rotary driving motor is connected with a rotating shaft, the rotating shaft penetrates through the feeding cavity, and spiral blades are wound on the outer side of the rotating shaft.
4. A calcium oxide production preheating device according to claim 3, characterized in that: an insulating layer is arranged on the outer side of the preheating cylinder body.
5. The calcium oxide production preheating device according to claim 4, wherein: a collecting box is arranged below the preheating cylinder body.
6. A calcium oxide production preheating device according to claim 5, wherein: the top of the collecting box is provided with an automatic opening and closing baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321819080.4U CN220317649U (en) | 2023-07-12 | 2023-07-12 | Calcium oxide production preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321819080.4U CN220317649U (en) | 2023-07-12 | 2023-07-12 | Calcium oxide production preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220317649U true CN220317649U (en) | 2024-01-09 |
Family
ID=89419362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321819080.4U Active CN220317649U (en) | 2023-07-12 | 2023-07-12 | Calcium oxide production preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220317649U (en) |
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2023
- 2023-07-12 CN CN202321819080.4U patent/CN220317649U/en active Active
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