CN211099069U - Redistribution type reaction device - Google Patents
Redistribution type reaction device Download PDFInfo
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- CN211099069U CN211099069U CN201921643099.1U CN201921643099U CN211099069U CN 211099069 U CN211099069 U CN 211099069U CN 201921643099 U CN201921643099 U CN 201921643099U CN 211099069 U CN211099069 U CN 211099069U
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Abstract
The embodiment of the utility model provides a redistribute formula reaction unit, it includes casing, draft tube and gas distributor. The guide cylinder is arranged in the shell and used for guiding the liquid phase in the shell to circularly flow; the gas distributor comprises a plurality of distribution pipes and gas guide pipes which are arranged in a hierarchical manner, and exhaust holes are formed in the distribution pipes; the liquid distributor is characterized by further comprising a first-stage gas redistributor and a second-stage gas redistributor, wherein the first-stage gas redistributor and the second-stage gas redistributor are arranged below the material outlet and above the gas distributors in sequence and used for redistributing gas in a liquid phase. Through set up draft tube and gas distributor in the casing, realize on the basis that does not increase the oxygen volume, air and the material in the casing can fully contact and react, improve the conversion of material oxidation promptly. Meanwhile, the gas discharged by the gas distributor and the gas generated by reaction are crushed in a grading way, so that the diameter of the bubbles is reduced, and the bubbles are distributed more uniformly.
Description
Technical Field
The utility model relates to a chemical industry raw materials preparation field especially relates to a redistribute formula reaction unit again.
Background
Cyclohexanone is an important chemical raw material, and is widely used in fibers, synthetic rubber, industrial coatings, medicines, pesticides, organic solvents and the like. Currently, the major production processes for cyclohexanone are the cyclohexane oxidation process and the hydration process. The industrial route for producing cyclohexanone by oxidizing cyclohexane includes two routes: one is cyclohexane catalytic oxidation, and the next is cyclohexane non-catalytic oxidation.
The cyclohexane oxidation reaction is a complex multiple reaction, the reaction temperature and the generation amount of by-products such as acid, ester and the like are controlled, but if the air amount is increased, the oxygen absorption rate of cyclohexane is poor, the conversion rate is low, and finally the oxygen content of tail gas is increased, so that the safety production is influenced; if the conversion rate is increased, a large amount of byproducts are generated by deep oxidation of cyclohexane, and the economic benefit is poor.
Therefore, a reaction device is lacked in the prior art, a certain oxygen uptake rate of cyclohexane can be ensured, the conversion rate of cyclohexane can be controlled, and the amount of generated byproducts can be reduced.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem that exists among the prior art, the utility model provides a redistribute formula reaction unit, it is under the prerequisite that does not increase the air quantity, realizes increasing the oxygen uptake rate of material in the device, can also reduce the output of accessory substance simultaneously.
The embodiment of the utility model provides a redistribute formula reaction unit, include:
the bottom of the shell is provided with a material inlet, the top of the shell is provided with an air inlet and a tail gas outlet, and the side wall of the shell is provided with a material outlet;
the guide cylinder is arranged in the shell and used for guiding the liquid phase in the shell to circularly flow;
the gas distributor is arranged close to the material inlet and comprises a plurality of distribution pipes which are arranged in a hierarchical mode and gas guide pipes which are communicated with the air inlet and the distribution pipes, and exhaust holes are formed in the distribution pipes;
the first-stage gas redistributor and the second-stage gas redistributor are arranged below the material outlet and are sequentially arranged above the gas distributors and used for redistributing gas in a liquid phase.
In some embodiments, the guide cylinder has a cylindrical portion and a bell mouth portion connected to the cylindrical portion, and an end of the cylindrical portion away from the bell mouth portion is open towards the material inlet.
In some embodiments, the distribution pipe is a circular ring-shaped pipeline, and is provided with at least one liquid discharge hole, and the diameter of the pipeline surrounded by the distribution pipe sequentially increases or decreases from bottom to top.
In some embodiments, the housing is an upright can, and the axis of the cylindrical portion is collinear with the axis of the upright can.
In some embodiments, the primary gas redistributor is in the shape of a circular plate, and is provided with a plurality of through holes for breaking up bubbles.
In some embodiments, the secondary gas redistributor is in the shape of a cylindrical mesh with a plurality of intersecting channels disposed therein for breaking up gas bubbles.
In some embodiments, the primary gas redistributor and the secondary gas redistributor are both circumferentially connected to the inner wall of the shell; the guide cylinder is respectively penetrated through the primary gas redistributor, the secondary gas redistributor and the gas distributors, and the outer wall of the guide cylinder is connected with the primary gas redistributor and the secondary gas redistributor.
In some embodiments, the material inlet is a circular hole, and the axis of the material inlet, the axes of the plurality of distribution pipes, and the axis of the housing are collinear.
In some embodiments, the number of the exhaust holes is two, and the two exhaust holes are symmetrically arranged along the axis of the liquid discharge hole; the included angle between the axis of the exhaust hole and the axis of the liquid discharge hole is larger than 90 degrees.
In some embodiments, the distance between adjacent distribution pipes increases or decreases from bottom to top.
Compared with the prior art, the utility model discloses beneficial effect lies in: the utility model discloses a set up in the casing and be used for the guide the draft tube of liquid phase circulation flow in the casing to and with the air can level the combustion gas distributor, realize on the basis that does not increase the oxygen volume, the material in air and the casing can fully contact and react, improves the conversion of material oxidation promptly. Meanwhile, the first-stage gas redistributor and the second-stage gas redistributor are arranged in the shell, gas discharged from the gas distributors and gas generated by reaction are crushed in a grading manner, so that the diameter of bubbles is reduced, the bubbles are distributed more uniformly, the contact area of air and materials is increased, the air and the materials are effectively mixed, and the conversion rate of the materials is increased.
Drawings
In the drawings, which are not necessarily drawn to scale, like reference numerals may describe similar components in different views. Like reference numerals having letter suffixes or different letter suffixes may represent different instances of similar components. The drawings illustrate various embodiments generally by way of example and not by way of limitation, and together with the description and claims serve to explain the disclosed embodiments. The same reference numbers will be used throughout the drawings to refer to the same or like parts, where appropriate. Such embodiments are illustrative, and are not intended to be exhaustive or exclusive embodiments of the present apparatus or method.
Fig. 1 is a schematic structural diagram of a redistribution type reaction apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a secondary gas redistributor of a redistribution type reaction apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a gas distributor of a redistribution type reaction device according to an embodiment of the present invention;
fig. 4 is a top view of a gas distributor of a redistribution type reactor according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of the distribution pipe of the redistribution type reactor according to the embodiment of the present invention.
The members denoted by reference numerals in the drawings:
1-a shell; 11-material inlet; 12-an air inlet; 13-tail gas outlet; 14-material outlet; 2-a guide shell; 21-a cylindrical portion; 22-bell mouth; 3-a gas distributor; 31-a distribution pipe; 32-an airway tube; 33-vent hole; 34-liquid discharge holes; 4-a primary gas redistributor; 5-secondary gas redistributor.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and the detailed description. The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and the specific embodiments, but not to be construed as limiting the invention.
The use of "first," "second," and similar terms in the description herein do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element preceding the word covers the element listed after the word, and does not exclude the possibility that other elements are also covered. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
In the present invention, when it is described that a specific device is located between a first device and a second device, an intervening device may or may not be present between the specific device and the first device or the second device. When a particular device is described as being coupled to other devices, that particular device may be directly coupled to the other devices without intervening devices or may be directly coupled to the other devices with intervening devices.
All terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless specifically defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
The embodiment of the utility model provides a redistribute formula reaction unit, as shown in figure 1, redistribute formula reaction unit and include casing 1, draft tube 2 and gas distributor 3 again, casing 1 is used for the splendid attire material. The bottom of the shell 1 is provided with a material inlet 11, the top of the shell is provided with an air inlet 12 and a tail gas outlet 13, and the side wall of the shell is provided with a material outlet 14, wherein the material outlet 14 can be connected with a vacuum pump so as to assist in pumping the materials which are fully reacted in the shell 1 out of the shell 1; the guide shell 2 is arranged in the shell 1 and used for guiding the liquid phase in the shell 1 to flow circularly, and the guide shell 2 can play a role in guiding the flow of the materials in the shell 1 through the shape characteristics of the guide shell or through the rotation of the guide shell; the gas distributor 3 is arranged close to the material inlet 11 so that the material entering the casing 1 is in full contact with the gas delivered by the gas distributor 3, the gas distributor 3 comprises a plurality of distribution pipes 31 arranged in a hierarchical manner and gas guide pipes 32 communicated with the air inlet 12 and the distribution pipes 31, and the distribution pipes 31 are provided with exhaust holes 33. In addition, the air duct 32 may be connected to each distribution duct 31, or the air duct 32 may be connected to one of the distribution ducts 31 and the plurality of distribution ducts 31 are communicated with each other, so that the air introduced from the air duct 32 can be introduced into all the distribution ducts 31, and is discharged from the plurality of distribution ducts 31 through the respective exhaust holes 33 in a staged manner. The distribution pipe 31 is not limited in shape and size, and air can be discharged into the housing 1 step by step through the exhaust holes 33 thereon, so that the air and the material can be in layered contact with each other sufficiently.
Further, with reference to fig. 1 and 2, the redistribution type reaction apparatus further includes a first-stage gas redistributor 4 and a second-stage gas redistributor 5, both of which are disposed below the material outlet 14 and above the gas distributor 3 in sequence, for redistributing gas in the liquid phase, wherein the gas in the liquid phase may include gas discharged from the gas distributor 4 and not completely reacted with the material, and tail gas generated after the material and air react. The gas after 3 discharges of gas distributor easily produces the great bubble of size in casing 1, and air also can produce gas with material oxidation reaction, make the great bubble of size of accommodating in the material, lead to influencing the oxidation reaction of air and material, can smash the bubble of upwards floating through above-mentioned one-level gas redistributor 4 and second grade gas redistributor 5, turn into a plurality of small bubbles with it, make the bubble more even, in order to increase the area of contact of air and material, make the two mix effectively, thereby increase the conversion rate of material. And this application adopts first-class gas redistributor 4 and second grade gas redistributor 5 to smash the bubble in grades, can further guarantee the broken degree of bubble, improves the oxygen uptake rate of material.
The utility model discloses a set up the draft tube 2 that is used for guiding the liquid phase circulation flow in the casing 1 in casing 1 to and can level the combustion gas distributor 3 with the air, realize on the basis that does not increase the oxygen volume, the material in air and the casing 1 can fully contact and react, improves the conversion rate of material oxidation promptly. Meanwhile, the first-stage gas redistributor 4 and the second-stage gas redistributor 5 are arranged in the shell 1, gas discharged from the gas distributor 3 and gas generated by reaction are subjected to graded crushing, so that the diameter of bubbles is reduced, the bubbles are distributed more uniformly, the contact area of air and materials is increased, the air and the materials are effectively mixed, and the conversion rate of the materials is increased.
In some embodiments, the guide shell 2 has a cylindrical portion 21 and a bell-mouth portion 22 (shown in fig. 1) connected to the cylindrical portion 21, and an end of the cylindrical portion 21 away from the bell-mouth portion 22 is open to the material inlet 11. The guide shell 2 can guide the liquid phase in the shell 1 to circularly flow through the cylindrical part 21 and the bell-mouth part 22 of the guide shell, and the speed and the direction of the material flowing in the shell 1 are controlled through the shape of the guide shell 2, so that the material flows under a specific flow pattern.
In some embodiments, the distribution pipe 31 is a circular pipe and is provided with at least one liquid discharge hole 34, as shown in fig. 3 to 5, so as to empty the excess liquid in the distribution pipe 31 and smoothly discharge air, the size of the liquid discharge hole 34 is not limited, preferably, the size of the liquid discharge hole 34 is larger than that of the vent hole 33, for example, the diameter of the liquid discharge hole 34 is 3 mm, the diameter of the vent hole 33 is 2 mm, so that liquid can be quickly discharged, and the diameter of the pipe surrounded by the distribution pipe 31 sequentially increases or decreases from bottom to top to further increase the contact area between air and the material, as shown in fig. 3, the diameter of the pipe surrounded by the distribution pipe 31 sequentially increases from bottom to top. In addition, the opening of the liquid discharge hole 34 is not limited in the present application, and preferably, the opening of the liquid discharge hole 34 faces downward, that is, toward the bottom of the housing 1, so that the liquid in the distribution pipe 31 is rapidly discharged under the action of gravity.
In some embodiments, the housing 1 is a vertical tank (as shown in fig. 1), the vertical tank is formed by welding, the axis of the cylindrical portion 21 is collinear with the axis of the vertical tank, and the guide cylinder 2 can uniformly guide the material flow in the housing 1, so as to increase the stability of the material flow.
In some embodiments, the primary gas redistributor 4 is in the shape of a circular plate (as shown in fig. 1) with a plurality of through holes for breaking up bubbles, and the primary gas redistributor 4 performs primary breaking up on bubbles floating upward, it being understood that bubbles with larger size can be broken up into a plurality of small bubbles through the through holes.
In some embodiments, the secondary gas redistributor 5 is in the shape of a cylindrical net (as shown in fig. 1 and fig. 2), and a plurality of cross channels for breaking the bubbles are arranged in the secondary gas redistributor 5, and the bubbles which are broken by the primary gas redistributor 4 are further broken by the secondary gas redistributor 5, that is, the bubbles can be further broken by the cross channels on the secondary gas redistributor 5, so that the bubbles are more uniform, the contact area of the air and the material is increased, the air and the material are effectively mixed, and the conversion rate of the material is increased.
In some embodiments, the primary gas redistributor 4 and the secondary gas redistributor 5 are circumferentially connected to the inner wall of the shell 1, the primary gas redistributor 4 and the secondary gas redistributor 5 can be arranged at intervals with the inner wall of the shell 1, and can also be hermetically connected to the inner wall of the shell 1, preferably, the primary gas redistributor 4 and the secondary gas redistributor 5 are hermetically connected to the inner wall of the shell 1, so that bubbles floating upwards can be completely smashed by the primary gas redistributor 4 and the secondary gas redistributor 5; the guide cylinder 2 is respectively penetrated with a primary gas redistributor 4, a secondary gas redistributor 5 and a gas distributor 3 (as shown in figure 1), the outer wall of the guide cylinder 2 is connected with the primary gas redistributor 4 and the secondary gas redistributor 5, the outer wall of the guide cylinder 2 and the primary gas redistributor 4 and the secondary gas redistributor 5 can be arranged at intervals, and can also be connected with the primary gas redistributor 4 and the secondary gas redistributor 5 in a sealing way, and the bubbles floating upwards can be smashed by the primary gas redistributor 4 and the secondary gas redistributor 5. In addition, the outer diameter of the guide cylinder 2 should be smaller than the inner diameter of the distribution pipe 31 of the gas distributor 3, so that the lower end of the guide cylinder 2 can pass through the gas distributor 3, wherein the lower port of the guide cylinder 2 can be flush with the lower end of the gas distributor 3 or extend downwards to the lower part of the gas distributor 3 and is opposite to the material inlet 11.
In some embodiments, the material inlet 11 is a circular hole, and the axes of the material inlet 11, the plurality of distribution pipes 31 and the axis of the housing 1 are collinear, so that the material entering from the material inlet 11 can uniformly contact with the air discharged from the distribution pipes 31, and the material and the air can uniformly react in the housing 1, and only partial contact between the material and the air is avoided.
In some embodiments, with reference to fig. 3 to 5, there are two exhaust holes 33 to increase the exhaust efficiency of the distribution pipe 31, and the two exhaust holes 33 are symmetrically arranged along the axis of the liquid discharge hole 34 to uniformly discharge the gas from the distribution pipe 31, where the exhaust holes 33 and the liquid discharge hole 34 are both straight holes, that is, the axes of the exhaust holes 33 and the liquid discharge hole 34 both pass through the center of the circular pipeline surrounded by the distribution pipe; the included angle between the axis of the exhaust hole 33 and the axis of the liquid discharge hole 34 is more than 90 degrees, and preferably, the included angle between the axis of the exhaust hole 33 and the axis of the liquid discharge hole 34 is 105 degrees.
In some embodiments, the distances between the adjacent distribution pipes 31 are sequentially increased or decreased from bottom to top, and the reaction rate of the material and the air is increased by increasing the distances between the adjacent distribution pipes 31, in this embodiment, the distances between the adjacent distribution pipes 31 are sequentially increased from bottom to top, and the air discharged from the distribution pipes 31 can be fully contacted with the material in a grading manner by increasing the distances between the adjacent distribution pipes 31.
Moreover, although exemplary embodiments have been described herein, the scope thereof includes any and all embodiments based on the present invention with equivalent elements, modifications, omissions, combinations (e.g., of various embodiments across), adaptations or variations. The elements of the claims are to be interpreted broadly based on the language employed in the claims and not limited to examples described in the present specification or during the prosecution of the application, which examples are to be construed as non-exclusive. It is intended, therefore, that the specification and examples be considered as exemplary only, with a true scope and spirit being indicated by the following claims and their full scope of equivalents.
The above description is intended to be illustrative and not restrictive. For example, the above-described examples (or one or more versions thereof) may be used in combination with each other. For example, other embodiments may be used by those of ordinary skill in the art upon reading the above description. Additionally, in the foregoing detailed description, various features may be grouped together to streamline the disclosure. This should not be interpreted as an intention that a disclosed feature not claimed is essential to any claim. Rather, inventive subject matter may lie in less than all features of a particular disclosed embodiment. Thus, the following claims are hereby incorporated into the detailed description as examples or embodiments, with each claim standing on its own as a separate embodiment, and it is contemplated that these embodiments may be combined with each other in various combinations or permutations. The scope of the invention should be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (10)
1. A redistribution type reaction apparatus, comprising:
the bottom of the shell is provided with a material inlet, the top of the shell is provided with an air inlet and a tail gas outlet, and the side wall of the shell is provided with a material outlet;
the guide cylinder is arranged in the shell and used for guiding the liquid phase in the shell to circularly flow;
the gas distributor is arranged close to the material inlet and comprises a plurality of distribution pipes which are arranged in a hierarchical mode and gas guide pipes which are communicated with the air inlet and the distribution pipes, and exhaust holes are formed in the distribution pipes;
the first-stage gas redistributor and the second-stage gas redistributor are arranged below the material outlet and are sequentially arranged above the gas distributors and used for redistributing gas in a liquid phase.
2. The redistribution reaction device as recited in claim 1, wherein the guide shell has a cylindrical portion and a bell mouth portion connected to the cylindrical portion, and an end of the cylindrical portion away from the bell mouth portion is open toward the material inlet.
3. The redistribution reaction device as claimed in claim 2, wherein the distribution pipes are circular pipes and are provided with at least one liquid discharge hole, and the diameters of the pipes surrounded by the distribution pipes are increased or decreased from bottom to top.
4. The redistribution device of claim 3 wherein the housing is a vertical canister, and the cylindrical portion has an axis that is collinear with an axis of the vertical canister.
5. The redistribution reaction device of claim 4 wherein the primary gas redistributor is in the shape of a circular plate having a plurality of through holes for breaking up gas bubbles.
6. The redistribution device of claim 5 wherein the secondary gas redistributor is in the shape of a cylindrical mesh having a plurality of intersecting channels for breaking up gas bubbles.
7. The redistribution means of claim 6, wherein the primary gas redistributor and the secondary gas redistributor are circumferentially connected to the inner wall of the shell; the guide cylinder is respectively penetrated through the primary gas redistributor, the secondary gas redistributor and the gas distributors, and the outer wall of the guide cylinder is connected with the primary gas redistributor and the secondary gas redistributor.
8. The redistribution device of claim 6 wherein the material inlet is a circular hole, and the axis of the material inlet, the axes of the plurality of distribution tubes, and the axis of the housing are collinear.
9. The redistribution reaction device of claim 3, wherein the number of the exhaust holes is two, and the two are symmetrically arranged along the axis of the liquid discharge hole; the included angle between the axis of the exhaust hole and the axis of the liquid discharge hole is larger than 90 degrees.
10. The redistribution device of claim 3, wherein the spacing between adjacent distribution tubes increases or decreases from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643099.1U CN211099069U (en) | 2019-09-29 | 2019-09-29 | Redistribution type reaction device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921643099.1U CN211099069U (en) | 2019-09-29 | 2019-09-29 | Redistribution type reaction device |
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| CN211099069U true CN211099069U (en) | 2020-07-28 |
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| CN201921643099.1U Active CN211099069U (en) | 2019-09-29 | 2019-09-29 | Redistribution type reaction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586020A (en) * | 2019-09-29 | 2019-12-20 | 沧州旭阳化工有限公司 | Redistribution type reaction device |
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2019
- 2019-09-29 CN CN201921643099.1U patent/CN211099069U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586020A (en) * | 2019-09-29 | 2019-12-20 | 沧州旭阳化工有限公司 | Redistribution type reaction device |
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