CN220835600U - Lime atomizing carbonization device - Google Patents
Lime atomizing carbonization device Download PDFInfo
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- CN220835600U CN220835600U CN202323669973.8U CN202323669973U CN220835600U CN 220835600 U CN220835600 U CN 220835600U CN 202323669973 U CN202323669973 U CN 202323669973U CN 220835600 U CN220835600 U CN 220835600U
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- China
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- lime
- atomizing
- carbonization device
- venturi tube
- gas
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- 239000004571 lime Substances 0.000 title claims abstract description 69
- 235000008733 Citrus aurantifolia Nutrition 0.000 title claims abstract description 68
- 235000011941 Tilia x europaea Nutrition 0.000 title claims abstract description 68
- 238000003763 carbonization Methods 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 35
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 34
- 230000029087 digestion Effects 0.000 claims abstract description 34
- 238000009792 diffusion process Methods 0.000 claims abstract description 20
- 238000005507 spraying Methods 0.000 claims abstract description 18
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 15
- 230000005484 gravity Effects 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 230000008602 contraction Effects 0.000 abstract description 7
- 239000000047 product Substances 0.000 description 42
- 238000000034 method Methods 0.000 description 15
- 238000010000 carbonizing Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 2
- 230000005587 bubbling Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002105 nanoparticle Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a lime atomizing carbonization device which is used for enabling lime digestion liquid to contact CO 2 gas after atomizing so as to generate nano calcium carbonate, wherein the lime atomizing carbonization device comprises a venturi tube and a spray piece, the venturi tube comprises a diffusion part, a venturi tube part and a contraction part, the diffusion part and the contraction part are respectively positioned at two end parts of the venturi tube part and are all in an opening shape, the spray piece is positioned in a tube cavity of the venturi tube part and is used for horizontally spraying the atomized lime digestion liquid, when CO 2 gas flows from bottom to top along the extending direction of the venturi tube part, pressure difference exists between the diffusion part, the contraction part and the venturi tube part, the lime digestion liquid can stay in the venturi tube part in a short time after being sprayed by the spray piece positioned in a tube cavity of the venturi tube part, the contact area and the contact time of the CO 2 gas and the lime digestion liquid are increased, and carbonization reaction is promoted, so that the problem of low production efficiency caused by short contact time when the lime digestion liquid reacts with the CO 2 gas can be solved.
Description
Technical Field
The utility model relates to the technical field of a process for preparing nano calcium carbonate, in particular to a lime atomizing carbonization device.
Background
At present, nano calcium carbonate is mainly produced by a chemical method, comprising a double decomposition method and a carbonization method, wherein the double decomposition method has higher cost, is rarely adopted at home and abroad, and the carbonization method is a method for reacting lime digestion liquid with CO 2 gas, belongs to gas-liquid-solid three-phase reaction, has the advantages of economy, good product quality and the like, and is a method mainly adopted for producing nano calcium carbonate. The carbonization method for producing nano calcium carbonate mainly comprises an intermittent stirring type, an intermittent bubbling type, a continuous spraying type and the like, wherein the intermittent stirring type has the advantages of large equipment investment, complex operation, high intermittent bubbling type energy consumption, wide particle size distribution, difficult control of operation process conditions, large production capacity, stable product quality and small investment.
The continuous spray type adopts the carbonization tower to carry out carbonization reaction to produce nano calcium carbonate, in the process of downward spraying of the nozzle in the operation process, the contact area and the contact time can be reduced due to the initial kinetic energy and the gravity of lime digestion liquid, and the energy consumption in the operation process is high. In addition, the product collection mode in the traditional process is long in time consumption and increases the labor cost.
When the lime digestion liquid adopts a continuous spray type carbonization device, the contact time is short when the lime digestion liquid reacts with CO 2 gas due to the action of gravity, and the inter-phase mass transfer is restricted, so that the production efficiency is low, and in addition, the spray type feeding and manual material taking are adopted, so that the energy consumption and the labor cost can be increased.
Therefore, how to solve the problem of low production efficiency caused by short contact time when lime digestion solution reacts with CO 2 gas is a technical problem that needs to be solved by the skilled in the art at present.
Disclosure of utility model
The utility model aims to provide a lime atomizing carbonization device, which can solve the problem of low production efficiency caused by short contact time when lime digestion liquid reacts with CO 2 gas.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides a lime atomizing carbonization device for lime digestion liquid atomizing back contact CO 2 is gaseous, in order to produce nano calcium carbonate, lime atomizing carbonization device includes venturi and spray piece, and venturi includes diffusion portion, venturi portion and constriction portion, and diffusion portion and constriction portion are located two tip of venturi portion respectively and all are the opening form, and spray piece is located the lumen of venturi portion, and is arranged in the lime digestion liquid after the horizontal spraying atomizing, so that with the CO 2 gaseous abundant contact that flows from bottom to top along the extending direction of venturi portion.
Preferably, the spraying piece is communicated with the container through the flow pipe, the container is used for containing lime digestion liquid, the container and the throat pipe are arranged at different heights, and the bottom of the container is higher than the top of the throat pipe.
Preferably, the flow pipe is provided with a one-way valve for controlling the circulation of lime slaking solution and preventing the reverse flow of lime slaking solution.
Preferably, the bottom of the venturi tube is movably provided with a product collecting plate, the inside of which is recessed for collecting nano calcium carbonate.
Preferably, the plurality of product collecting plates are provided, and the plurality of product collecting plates are arranged uniformly and at intervals along the axial extension direction of the venturi tube.
Preferably, the product collecting plates are provided with gravity sensors, and the gravity sensors are positioned on one side of the product collecting plates away from the throat pipe.
Preferably, the bottom of the venturi is also provided with a gas distribution plate for the CO 2 gas to flow through the product collection plate and constriction to the venturi section and diffuser section.
Preferably, the diffuser portion is located at an end of the throat portion facing away from the product collection plate and the constriction portion is located at an end of the throat portion facing away from the diffuser portion.
Preferably, the openings of the diffuser portion and the constriction portion are uniform in size.
Preferably, the axes of the spraying member and the throat portion are parallel to each other.
Compared with the background art, the lime atomizing and carbonizing device provided by the utility model is used for enabling lime digestion liquid to contact CO 2 gas after being atomized so as to generate nano calcium carbonate, the lime atomizing and carbonizing device comprises a venturi tube and a spray piece, the venturi tube comprises a diffusion part, a venturi tube part and a contraction part, the diffusion part and the contraction part are respectively positioned at two end parts of the venturi tube part and are in an opening shape, the spray piece is positioned in a tube cavity of the venturi tube part, and the spray piece is used for horizontally spraying the atomized lime digestion liquid so as to enable the lime digestion liquid to be fully contacted with CO 2 gas flowing from bottom to top along the extending direction of the venturi tube part.
Specifically, the diffusion portion and the shrinkage portion are respectively located at two ends of the venturi portion and are all in an opening shape, when CO 2 gas flows from bottom to top along the extending direction of the venturi portion, pressure difference exists between the diffusion portion, the shrinkage portion and the venturi portion, the pressure at the venturi portion is lower than that at the diffusion portion and the shrinkage portion, lime digestion liquid can stay in the venturi portion in a short time after being sprayed by a spraying piece located in a pipe cavity of the venturi portion, the contact area and the contact time of CO 2 gas and the lime digestion liquid are increased, carbonization reaction is promoted, and nano calcium carbonate is generated, so that the problem that production efficiency is low due to the fact that the contact time is short when the lime digestion liquid and CO 2 gas react can be solved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a lime atomizing carbonization device according to an embodiment of the present utility model.
Wherein:
1-lime digestion solution;
100-venturi, 110-diffuser, 120-throat, 130-constriction, 140-product collection plate, 141-gravity sensor, 150-gas distribution plate;
200-spraying piece, 210-flow tube, 211-one-way valve, 220-container.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The present utility model will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present utility model.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "top" and "bottom" and the like are based on the directions or positional relationships shown in the drawings, only for convenience of description and simplification of the description, and are not indicative or implying that the indicated positions or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limitations of the present utility model.
The utility model aims to provide a lime atomizing carbonization device, which can solve the problem of low production efficiency caused by short contact time when lime digestion liquid reacts with CO 2 gas.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
Referring to fig. 1, the present embodiment provides a lime atomizing and carbonizing apparatus for atomizing lime digestion liquid 1 and then contacting CO 2 gas to generate nano calcium carbonate, the lime atomizing and carbonizing apparatus includes a venturi tube 100 and a spraying member 200, the venturi tube 100 includes a diffusing portion 110, a throat portion 120 and a constriction portion 130, the diffusing portion 110 and the constriction portion 130 are respectively located at two ends of the throat portion 120 and are both in an open shape, the spraying member 200 is located in a lumen of the throat portion 120 and is used for horizontally spraying the atomized lime digestion liquid 1 so as to fully contact with CO 2 gas flowing from bottom to top along an extending direction of the throat portion 120.
It should be noted that, the carbonization process is a multiphase reaction, the reaction is performed on a phase interface, the reaction speed is closely related to the contact area and contact time between reactants, increasing the contact area and contact time between gas and liquid phases and liquid and solid phases is one of effective ways, the venturi tube 100 is added in the production process, and the micro negative pressure of the throat portion 120 of the venturi tube 100 is utilized to increase the contact area and contact time between gas and liquid so as to enable crystal nuclei to grow, so that the nano-sized calcium carbonate product with a certain granularity is prepared.
Specifically, the diffusion portion 110 and the shrinkage portion 130 are respectively located at two ends of the throat portion 120 and are both in an opening shape, when CO 2 gas flows from bottom to top along the extending direction of the throat portion 120, a pressure difference exists between the diffusion portion 110 and the shrinkage portion 130 and the throat portion 120, the pressure at the throat is lower than that at the diffusion portion 110 and the shrinkage portion 130, lime digestion liquid 1 can stay in the throat portion 120 for a short time after being sprayed by the spraying piece 200 located in the pipe cavity of the throat portion 120, the contact area and the contact time of CO 2 gas and the lime digestion liquid 1 are increased, and carbonization reaction is promoted to be carried out, so that the problem of low production efficiency caused by short contact time when the lime digestion liquid 1 reacts with CO 2 gas can be solved.
Preferably, the spraying piece 200 is communicated with the container 220 through the flow tube 210, the container 220 is used for containing lime digestion liquid 1, the container 220 is arranged at different heights from the throat part 120, and the bottom of the container 220 is higher than the top of the throat part 120.
It will be appreciated that the container 220 for containing the lime digestion liquid 1 has a height difference from the throat 120, and the lime digestion liquid 1 is carbonized from the throat 120 flowing into the venturi 100 by gravity, thereby reducing transportation energy consumption.
It should be noted that the bottom of the container 220 may be higher than the top of the throat portion 120, and the specific shape and position of the container 220 may be adjusted according to practical situations.
Preferably, flow tube 210 is provided with a one-way valve 211, and one-way valve 211 is used to control the flow of lime slaking solution 1 and to prevent the backflow of lime slaking solution 1.
In the present embodiment, a check valve 211 for controlling the flow of lime slaking solution 1 is provided in the flow tube 210, that is, when the check valve 211 is opened, lime slaking solution 1 in the vessel 220 flows along the flow tube 210 to the spraying member 200, and when the check valve 211 is closed, the lime slaking solution 1 in the vessel 220 stops flowing and can prevent the reverse flow of lime slaking solution 1.
Preferably, the bottom of the venturi tube 100 is movably provided with a product collecting plate 140, and the inside of the product collecting plate 140 is recessed for collecting nano calcium carbonate.
It will be appreciated that the bottom of the venturi 100 is provided with a product collection plate 140, the product collection plate 140 being provided with a recessed area for collecting nano calcium carbonate, and when the product within the product collection plate 140 reaches a certain amount, the product collection plate 140 moves relative to the venturi 100 to cause the product to be transported out of the venturi 100.
Preferably, there are a plurality of product collection plates 140, and the plurality of product collection plates 140 are disposed at uniform and spaced intervals along the axial extension of the venturi 100.
Wherein there are a plurality of product collecting plates 140, the plurality of product collecting plates 140 are uniformly and alternately arranged along the axial extension direction of the venturi tube 100, when the product in the previous product collecting plate 140 reaches a certain amount, the product collecting plate 140 is moved out, and the reaction product enters the next product collecting plate 140.
Preferably, the product collection plates 140 are each provided with a gravity sensor 141, the gravity sensor 141 being located on a side of the product collection plate 140 facing away from the throat portion 120.
In this embodiment, a multi-layer product collecting plate 140 and a gravity sensor 141 are introduced at the bottom of the venturi tube 100, the product collecting plate 140 is concave, and when the product inside the product collecting plate 140 reaches a certain amount, the gravity sensor 141 receives a signal, the product collecting plate 140 is moved out, and the product collecting plate 140 and the gravity sensor 141 are introduced to shorten the product collecting time and labor cost, so that the process is more flexible.
In addition, the length of the venturi 100 may be appropriately increased according to the specific production requirements, and the specific number of the product collecting plates 140 may be adjusted according to the actual situation, which is not particularly limited herein, so long as the above-mentioned purpose can be achieved.
Preferably, the bottom of the venturi 100 is further provided with a gas distribution plate 150, the gas distribution plate 150 being used for the CO 2 gas to circulate through the product collection plate 140 and the constriction 130 to the throat 120 and the diffuser 110.
It can be understood that the bottom of the venturi tube 100 is further provided with a gas distribution plate 150, and the co 2 gas flows from the gas distribution plate 150 to the product collecting plate 140, the constriction 130, the throat 120 and the diffusion 110 along the axial direction of the venturi tube 100, and the micro negative pressure of the throat 120 of the venturi tube 100 is used to increase the gas-liquid-solid contact area and contact time, so as to grow crystal nuclei, and prepare a nano-sized calcium carbonate product with a certain granularity.
Preferably, the diffuser portion 110 is located at an end of the throat portion 120 facing away from the product collection plate 140, and the constriction 130 is located at an end of the throat portion 120 facing away from the diffuser portion 110.
Wherein, the diffusing part 110 is preferably located at the top end of the throat part 120, and the contracting part 130 is preferably located at the bottom end of the throat part 120.
Preferably, the openings of the diffusion portion 110 and the constriction portion 130 are uniform in size.
In the present embodiment, the opening sizes of the diffusion portion 110 and the contraction portion 130 are preferably identical, however, the opening sizes and the degree of the diffusion portion 110 and the contraction portion 130 may be set differently according to actual needs, and the above-mentioned object may be achieved.
Preferably, the axes of the atomizer 200 and the throat 120 are parallel to each other.
It should be noted that, the axes of the spraying member 200 and the throat portion 120 are preferably parallel to each other, so as to reduce the obstruction of the flow of the CO 2 gas, and facilitate the horizontal spraying of the atomized lime digestion liquid 1.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The embodiments of the present utility model have been described in detail. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (10)
1. The utility model provides a lime atomizing carbonization device for contact CO 2 gas behind lime resolution liquid (1) atomizing, in order to produce nano calcium carbonate, a serial communication port, lime atomizing carbonization device includes venturi (100) and spray piece (200), venturi (100) are including diffusion portion (110), choke portion (120) and constriction portion (130), diffusion portion (110) with constriction portion (130) are located respectively and are both in the opening form at two tip of choke portion (120), spray piece (200) are located in the lumen of choke portion (120), and be used for the level spraying behind the atomizing lime resolution liquid (1) in order to make with follow choke portion (120) extending direction from bottom to top the abundant contact of CO 2 gas.
2. The lime atomizing carbonization device according to claim 1, wherein the spray member (200) is communicated with a container (220) through a flow tube (210), the container (220) is used for containing the lime digestion liquid (1), the container (220) is arranged at a different height from the throat portion (120), and the bottom of the container (220) is higher than the top of the throat portion (120).
3. Lime atomizing carbonization device according to claim 2, characterized in that the flow pipe (210) is provided with a one-way valve (211), which one-way valve (211) is used for controlling the circulation of the lime digestion liquid (1) and can prevent the lime digestion liquid (1) from flowing back.
4. Lime atomizing carbonization device according to claim 1, characterized in that the bottom of the venturi tube (100) is movably provided with a product collection plate (140), the interior of the product collection plate (140) being recessed for collecting the nano calcium carbonate.
5. The lime atomizing carbonization device according to claim 4, wherein a plurality of said product collection plates (140) are provided, and a plurality of said product collection plates (140) are provided at uniform intervals along the axial extension direction of said venturi tube (100).
6. Lime atomizing carbonization device according to claim 4, characterized in that the product collection plates (140) are each provided with a gravity sensor (141), which gravity sensor (141) is located at the side of the product collection plates (140) facing away from the throat section (120).
7. The lime atomizing carbonization device according to claim 4, characterized in that the bottom of the venturi tube (100) is further provided with a gas distribution plate (150), said gas distribution plate (150) being used for the flow of said CO 2 gas through said product collection plate (140) and said constriction (130) to said throat portion (120) and said diffusion portion (110).
8. Lime atomizing carbonization device according to claim 4, characterized in that said diffuser portion (110) is located at the end of said throat portion (120) facing away from said product collection plate (140), and said constriction (130) is located at the end of said throat portion (120) facing away from said diffuser portion (110).
9. Lime atomizing carbonization device according to claim 1, characterized in that the openings of the diffuser portion (110) and the constriction (130) are uniform in size.
10. Lime atomizing carbonization device according to any of claims 1 to 9, characterized in that the axes of the spray element (200) and the throat section (120) are parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323669973.8U CN220835600U (en) | 2023-12-29 | 2023-12-29 | Lime atomizing carbonization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323669973.8U CN220835600U (en) | 2023-12-29 | 2023-12-29 | Lime atomizing carbonization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220835600U true CN220835600U (en) | 2024-04-26 |
Family
ID=90787425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323669973.8U Active CN220835600U (en) | 2023-12-29 | 2023-12-29 | Lime atomizing carbonization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220835600U (en) |
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2023
- 2023-12-29 CN CN202323669973.8U patent/CN220835600U/en active Active
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