CN215387634U

CN215387634U - Analytic tower for rolling oil mist recovery processing

Info

Publication number: CN215387634U
Application number: CN202121147474.0U
Authority: CN
Inventors: 李振兴; 刘国强; 王帅鹏
Original assignee: Henan Yongtong Aluminum Co ltd
Current assignee: Henan Yongtong Aluminum Co ltd
Priority date: 2021-05-26
Filing date: 2021-05-26
Publication date: 2022-01-04
Anticipated expiration: 2031-05-26

Abstract

The utility model discloses an analytic tower for recovering and treating rolling oil mist, which comprises an analytic tower body, a mixed oil uniform distributor, a central cylinder, a first tower internal part, a reboiler, a U-shaped pipe, an oil outlet pipe and a second tower internal part, wherein the reboiler is arranged in the middle of the analytic tower body and hermetically divides the analytic tower body into an upper cavity and a lower cavity, the mixed oil uniform distributor and the first tower internal part are arranged in the upper cavity from top to bottom, the mixed oil uniform distributor and the second tower internal part are arranged in the lower cavity from top to bottom, the feeding end of the central cylinder is communicated with the discharging end of the first tower internal part, the discharging end of the central cylinder is communicated with an external circulation feeding port of the reboiler, the feeding end of the U-shaped pipe is communicated with an external circulation discharging port of the reboiler, and the discharging end of the U-shaped pipe is communicated with the feeding end of the mixed oil uniform distributor in the lower cavity. The analytical tower is mixed with the mixed oil and fully dispersed twice and distilled in two stages, so that the distillation amount is increased, the rolling oil in the mixed oil can be effectively distilled out, and the analytical effect of the analytical tower is improved.

Description

Analytic tower for rolling oil mist recovery processing

Technical Field

The utility model relates to the technical field of rolling oil mist recovery equipment, in particular to an analytic tower for rolling oil mist recovery treatment.

Background

The degassed mixed oil containing the rolling oil is sent to a preheater for preheating, then is heated to a set analysis temperature by a heat conduction oil heating unit and then enters an analysis tower, the analysis tower adopts a pressure reduction and distillation process method to realize the separation of the washing oil and the rolling oil, an analysis tower system achieves the temperature and the vacuum degree required by analysis by controlling and adjusting the heating unit and a vacuum unit through a PLC, the rolling oil is vaporized and separated from the mixed oil under the set working temperature and pressure conditions (vacuum), the gas-phase rolling oil is discharged from the top of the tower, is condensed to form the rolling oil and is discharged into a finished oil tank according to a preset program; the liquid phase absorption oil is discharged from the bottom of the desorption tower, flows through a heat exchanger for pre-cooling, enters a cooler, is cooled to the required absorption temperature, is sent to the top of the absorption tower, returns to the absorption tower system for reuse, and starts a new cycle.

Usually, in order to improve the analysis efficiency, the analysis tower body is divided into two sections to carry out two-stage distillation on the mixed oil, but in the two-stage distillation process, the distribution and the temperature of the mixed oil are limited, namely whether the mixed oil is dispersed enough or not, particularly whether the second-stage distillation temperature reaches the analysis temperature or not, the gas-liquid mass transfer process is greatly influenced, and the effect of distilling, separating and rolling the oil is further reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an analytic tower for recovering and treating rolling oil mist, which aims to solve the problem that the gas-liquid mass transfer process is greatly influenced by the distribution and temperature of mixed oil, namely whether the mixed oil is sufficiently dispersed or not, particularly whether the second-stage distillation temperature reaches the analytic temperature or not, and further the effect of distilling and separating the rolling oil is reduced in the two-stage distillation process of the analytic tower.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the analytical tower for rolling oil mist recovery treatment comprises an analytical tower body, a mixed oil uniform distributor, a center barrel, a first tower internal part, a reboiler, a U-shaped pipe, an oil outlet pipe and a second tower internal part, wherein the reboiler is arranged in the middle of the analytical tower body and is used for hermetically separating the analytical tower body into an upper cavity and a lower cavity, the mixed oil uniform distributor and the first tower internal part are arranged in the upper cavity from top to bottom, the mixed oil uniform distributor and the second tower internal part are arranged in the lower cavity from top to bottom, the feed end of the center barrel is communicated with the discharge end of the first tower internal part, the discharge end of the center barrel is communicated with an external circulation feed inlet of the reboiler, the feed end of the U-shaped pipe is communicated with an external circulation discharge outlet of the reboiler, and the discharge end of the U-shaped pipe is communicated with the feed end of the mixed oil uniform distributor in the lower cavity, the two oil outlet pipes are respectively communicated with the air outlet ends of the first tower internal part and the second tower internal part.

The further technical scheme is as follows: the miscella uniform distributor includes feed liquor pipe, branch liquid pipe support, branch liquid case, branch cistern and knockout, divide liquid pipe support horizontal installation in the analytic tower is internal, the play liquid end of feed liquor pipe passes the degasification tower body with the feed liquor end intercommunication of branch liquid pipe support, the feed liquor end of branch liquid case with the play liquid end intercommunication of branch liquid pipe support, the branch cistern is installed in the branch liquid incasement, it is a plurality of the knockout evenly distributed and with the play liquid end intercommunication of branch cistern.

The further technical scheme is as follows: the knockout includes drain pipe, governing valve, baffle-box and shunt tubes, the feed liquor end of drain pipe with the play liquid end intercommunication in shunt groove, the governing valve is installed on the drain pipe, the baffle-box with the play liquid end intercommunication of drain pipe, the shunt tubes symmetry is installed the play liquid of baffle-box both sides is served.

The further technical scheme is as follows: the first tower internal part and the second tower internal part are consistent in structure and comprise pall rings, gas outlet cylinders, fillers and gas outlet rings, the pall rings are vertically arranged in the desorption tower body, the gas outlet cylinders are coaxially arranged in the pall rings, the gas outlet rings are coaxially arranged outside the pall rings, the gas outlet rings are communicated with the gas outlet cylinders, and the fillers are arranged between the pall rings and the gas outlet cylinders.

The further technical scheme is as follows: the pall ring comprises at least two layers of circular rings, a plurality of accommodating cavities are uniformly formed in the circular rings through partition plates, and the accommodating cavities in the adjacent circular rings are arranged in a staggered mode.

The further technical scheme is as follows: the packing is a plurality of corrugated plates stacked in the containing cavity, and the surface wave forms of the corrugated plates are S-shaped.

The further technical scheme is as follows: and the air outlet end of the air outlet cylinder is communicated with the condenser through the oil outlet pipe.

The further technical scheme is as follows: and an internal circulation discharge hole of the reboiler is communicated with the mixed oil uniform distributor in the upper cavity.

Compared with the prior art, the utility model can at least achieve one of the following beneficial effects:

1. the utility model provides a resolving tower for recovering and treating rolling oil mist, wherein a resolving tower body is provided with an upper cavity and a lower cavity, mixed oil is fully dispersed in the upper cavity through a mixed oil uniform distributor and a first tower internal part for primary distillation, the mixed oil which is not fully distilled from the rolling oil is heated secondarily through a reboiler, and continuously enters the lower cavity to be fully dispersed secondarily through the mixed oil uniform distributor and a second tower internal part for secondary distillation, the distillation amount is improved through the two-time full dispersion and two-stage distillation, the rolling oil in the mixed oil can be effectively distilled, and the resolving effect of the resolving tower is improved.

2. The reboiler utilizes the high temperature miscella that gets into cavity on the desorption tower for the first time, and the miscella that the heating got into cavity down will be through the miscella after the primary distillation, and the analytic temperature is returned once more to, can reach energy-conserving effect on the one hand, and on the other hand still promotes the secondary distillation effect.

Drawings

Fig. 1 is a schematic structural view of a resolving tower for rolling oil mist recovery processing according to the present invention.

FIG. 2 is a schematic structural diagram of the mixed oil homogenizer in FIG. 1.

FIG. 3 is a schematic view showing the structure of the liquid dispenser of FIG. 2 according to the present invention.

FIG. 4 is a schematic structural view of the first column internals of FIG. 1 according to the present invention.

FIG. 5 is a schematic structural view of the pall ring of FIG. 4 according to the present invention.

FIG. 6 is a schematic view of the structure of the air outlet cylinder and the air outlet ring in FIG. 4 according to the present invention

FIG. 7 is a schematic view of the corrugated board shown in FIG. 4 according to the present invention

Reference numerals: 4. a resolution tower; 41. resolving the tower body; 42. a mixed oil uniform distributor; 421. a liquid inlet pipe; 422. a liquid separation pipe frame; 423. a liquid separation box; 424. a liquid separating tank; 425. a liquid separator; 4251. a liquid outlet pipe; 4252. adjusting a valve; 4253. a buffer tank; 4254. a shunt tube; 43. a central barrel; 44. a first tower internals; 441. pall ring; 4411. a circular ring; 4412. a partition plate; 4413. an accommodating chamber; 442. an air outlet cylinder; 443. a filler; 444. an air outlet ring; 45. a reboiler; 46. a U-shaped pipe; 47. an oil outlet pipe; 48. a second column internal.

Detailed Description

In order to make 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 described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In addition, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are used only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The analytical tower for rolling oil mist recovery processing shown in fig. 1.

The working process of the utility model is as follows: the desorption tower 4 comprises a desorption tower body 41, a mixed oil distributor 42, a central cylinder 43, a first tower internal part 44, a reboiler 45, a U-shaped pipe 46, an oil outlet pipe 47 and a second tower internal part 48, wherein the reboiler 45 is arranged in the middle of the desorption tower body 41, the desorption tower body 41 is hermetically divided into an upper cavity 411 and a lower cavity 412 which are independent, the mixed oil distributor 42 and the first tower internal part 44 are arranged in the upper cavity 411 from top to bottom, high-temperature mixed oil heated by a heat exchange unit is fully dispersed in the upper cavity 411 in sequence through the mixed oil distributor 42 and the first tower internal part 44 for primary distillation, the mixed oil flowing out from the bottom of the first tower internal part 44 is collected and guided through the central cylinder 43 at the bottom of the upper cavity 411, the mixed oil which is not fully distilled also contains rolled oil, and the mixed oil enters the lower cavity 412 through an external circulation feed inlet (a cold material inlet) of the reboiler 45 (a tubular heat exchanger), the mixed oil uniform distributor 42 and the second tower internal part 48 are installed in the lower cavity 412 from top to bottom, the feeding end of the U-shaped pipe 46 is communicated with the external circulation discharging port of the reboiler 45, the discharging end of the U-shaped pipe 46 is communicated with the feeding end of the mixed oil uniform distributor 42 in the lower cavity 412, the reheated mixed oil enters the mixed oil uniform distributor and the second tower internal part in the lower cavity 412 to complete secondary sufficient dispersion, secondary distillation is carried out, the two oil outlet pipes 47 are respectively communicated with the gas outlet ends of the first tower internal part 44 and the second tower internal part 48, the distilled rolling oil is collected, the secondary sufficient dispersion and the two-stage distillation are carried out, the distillation amount is increased, the rolling oil in the mixed oil can be effectively distilled out, and the resolution effect of the resolution tower is improved.

Further, as shown in fig. 2, the working principle of the mixed oil uniform distributor 4 is as follows: the liquid separating pipe frame 422 is horizontally arranged in the analysis tower body 41, the liquid outlet end of the liquid inlet pipe 421 penetrates into the analysis tower body 41 to be communicated with the liquid inlet end of the liquid separating pipe frame 422, the liquid inlet pipe 421 is communicated with the mixed oil circulating pump, the liquid inlet end of the liquid separating tank 423 is communicated with the liquid outlet end of the liquid separating pipe frame 422, the liquid separating groove 424 is arranged in the liquid separating tank 423, in order to improve the flow equalizing effect, a flow equalizing plate can be arranged between the liquid distribution box 423 and the liquid inlet end of the liquid distribution groove 424, columnar flowing washing oil is dispersed through the flow equalizing plate of grids or holes, a plurality of uniformly distributed liquid outlet ends of the liquid distribution pipe frame 422 begin to inject oil into the liquid distribution box 423 under the action of oil pressure, the washing oil dispersed by the flow equalizing plate flows into the liquid distribution groove 424, a plurality of liquid distributors 425 are uniformly distributed and communicated with the liquid outlet end of the liquid distribution groove 424, and low-flow washing oil can enter in a dispersing way and flow out in a dispersing way again to form uniform initial distribution;

on the basis of the above, as shown in fig. 3, the structural principle of the liquid distributor 425 is as follows: the liquid inlet end of the liquid outlet pipe 4251 is communicated with the liquid outlet end of the liquid separating groove 424, the regulating valve 4252 is installed on the liquid outlet pipe 4251, the regulating valve 4252 is located below the liquid separating groove 424, namely, the regulating valve is in an exposed state, so that a person can conveniently regulate the flow of review, in order to prevent oil from polluting the regulating valve 4252, an oil stain preventing component (shell/box) can be installed on the regulating valve 4252, the buffer box 4253 is communicated with the liquid outlet end of the liquid outlet pipe 4251, the shunt pipes 4254 are symmetrically installed on the liquid outlet ends of two sides of the buffer box 4253, the oil quantity of the liquid separator 425 can be regulated, and the washing oil is initially distributed uniformly. In order to prevent impurities in the mixed oil from damaging components, a filter cover can be arranged at the liquid inlet end of the liquid outlet pipe 4251. Buffer tank 4253 on adjacent knockout 425 can also communicate through communicating pipe, and knockout 425 communicates through communicating pipe, prevents that certain knockout 425 oil pressure is unstable or damage unable oil feed, can carry out intercommunication oil supplementation through communicating pipe, prevents to produce oil inhomogeneous.

Further, referring to fig. 4, a first tower internal part 44 is shown, the first tower internal part 44 and the second tower internal part 48 have the same structure, and include a pall ring 441, a gas outlet cylinder 442, a packing 443, and a gas outlet ring 444, the pall ring 441 is vertically installed in the desorption tower body 41, the gas outlet cylinder 442 is coaxially installed in the pall ring 441, the gas outlet ring 444 is coaxially installed outside the pall ring 441, the gas outlet ring 444 is communicated with the gas outlet cylinder 442, a packing 443 is installed between the pall ring 441 and the gas outlet cylinder 442, the high-temperature mixed oil is uniformly distributed on the packing 442 through the mixed oil distributor 42, and is sufficiently dispersed through the packing 442, under the environment of reduced pressure and high temperature, the rolled oil in the mixed oil is distilled under the desorption temperature, and is collected through the gas outlet cylinder 442 and the gas outlet ring 444, the pall ring 441 has the advantages of large flux, small resistance, high separation efficiency, large operation elasticity, and the contact area between the gas outlet cylinder 442 and the gas outlet ring 444 and the packing 443 in the pall ring 441 is large, the collecting effect is good, and separation efficiency is high, and the oil outlet pipe 47 relies on the negative pressure to take out the rolling oil of distilling out, obtains liquid rolling oil through the condensation.

Further, referring to fig. 5, 6 and 7, the pall ring 441 includes at least two layers of rings 4411, a plurality of receiving cavities 4413 are uniformly arranged in the rings 4411 through a partition 4412, and the receiving cavities 4413 in adjacent rings 4411 are arranged in a staggered manner. The packing 443 is a plurality of corrugated plates stacked in the receiving chamber 4413, and the surface of the corrugated plates has a wave shape of S. The air outlet end of the air outlet cylinder 442 is communicated with the condenser through the oil outlet pipe 47.

The chamber 4413 that holds of dislocation set up is filled with the filler 443 that is formed by the buckled plate that a plurality of levels stacked, the miscella enters into the ring 4411 back of lower floor, because the filler 133 of two-layer dislocation set, make the miscella not have the dead angle and distribute on each buckled plate, the miscella disperses more, be the buckled plate of S type at the surface wave form, the miscella velocity of flow is slower, the area of flowing through is more, the oil film of formation is bigger, it is thinner, help improving degasification effect, promote the oil of miscella, also can prevent light component impurity in addition, especially steam gets into rectification equipment and damages equipment.

On the basis of the above embodiment, further, the internal circulation discharge port of the reboiler 45 communicates with the mixed oil homogenizer 42 in the upper cavity 411. The reboiler 45 heats the mixed oil entering the lower chamber 412 by using the high temperature mixed oil entering the upper chamber 411 of the desorption tower 41 for the first time, and raises the mixed oil after the primary distillation back to the desorption temperature again, so as to achieve the energy-saving effect on one hand and also improve the secondary distillation effect on the other hand.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the utility model to effect such feature, structure, or characteristic in connection with other embodiments.

Although the utility model has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims

1. Analytical tower for rolling oil mist recovery processing comprises an analytical tower (4), and is characterized in that: the desorption tower (4) comprises a desorption tower body (41), a mixed oil uniform distributor (42), a central cylinder (43), a first tower internal member (44), a reboiler (45), a U-shaped pipe (46), an oil outlet pipe (47) and a second tower internal member (48), wherein the reboiler (45) is arranged in the middle of the desorption tower body (41) and hermetically divides the desorption tower body (41) into an upper cavity (411) and a lower cavity (412), the mixed oil uniform distributor (42) and the first tower internal member (44) are arranged in the upper cavity (411) from top to bottom, the mixed oil uniform distributor (42) and the second tower internal member (48) are arranged in the lower cavity (412) from top to bottom, the feeding end of the central cylinder (43) is communicated with the discharging end of the first tower internal member (44), and the discharging end of the central cylinder (43) is communicated with the external circulation feeding port of the reboiler (45), the feeding end of the U-shaped pipe (46) is communicated with the external circulation discharging port of the reboiler (45), the discharging end of the U-shaped pipe (46) is communicated with the feeding end of the mixed oil uniform distributor (42) in the lower cavity (412), and the two oil outlet pipes (47) are respectively communicated with the gas outlet ends of the first tower internal part (44) and the second tower internal part (48).

2. The analytical tower for rolling oil mist recovery processing according to claim 1, wherein: miscella uniform distributor (42) are including feed liquor pipe (421), divide liquid pipe support (422), branch liquid case (423), divide liquid groove (424) and knockout (425), divide liquid pipe support (422) horizontal installation in analysis tower body (41), the play liquid end of feed liquor pipe (421) passes analysis tower body (41) with the feed liquor end intercommunication of dividing liquid pipe support (422), the feed liquor end of branch liquid case (423) with the play liquid end intercommunication of dividing liquid pipe support (422), divide liquid groove (424) to install in branch liquid case (423), it is a plurality of knockout (425) evenly distributed and with the play liquid end intercommunication of branch liquid groove (424).

3. The analytical tower for rolling oil mist recovery processing according to claim 2, wherein: the liquid distributor (425) comprises a liquid outlet pipe (4251), an adjusting valve (4252), a buffer tank (4253) and a flow dividing pipe (4254), the liquid inlet end of the liquid outlet pipe (4251) is communicated with the liquid outlet end of the liquid dividing groove (424), the adjusting valve (4252) is installed on the liquid outlet pipe (4251), the buffer tank (4253) is communicated with the liquid outlet end of the liquid outlet pipe (4251), and the flow dividing pipe (4254) is symmetrically installed at the liquid outlet ends of two sides of the buffer tank (4253).

4. The analytical tower for rolling oil mist recovery processing according to claim 1, wherein: the first tower internal piece (44) and the second tower internal piece (48) are structurally identical and comprise a pall ring (441), a gas outlet cylinder (442), a filler (443) and a gas outlet ring (444), the pall ring (441) is vertically installed in the resolving tower body (41), the gas outlet cylinder (442) is coaxially installed in the pall ring (441), the gas outlet ring (444) is coaxially installed outside the pall ring (441), the gas outlet ring (444) is communicated with the gas outlet cylinder (442), and the filler (443) is installed between the pall ring (441) and the gas outlet cylinder (442).

5. The analytical tower for rolling oil mist recovery processing according to claim 4, wherein: the pall ring (441) comprises at least two layers of circular rings (4411), a plurality of accommodating cavities (4413) are uniformly arranged in the circular rings (4411) through partition plates (4412), and the accommodating cavities (4413) in the adjacent circular rings (4411) are arranged in a staggered mode.

6. The analytical tower for rolling oil mist recovery processing according to claim 5, wherein: the packing (443) is a plurality of corrugated plates stacked in the accommodating chamber (4413), and the surface wave shape of the corrugated plates is S-shaped.

7. The analytical tower for rolling oil mist recovery processing according to claim 4, wherein: the air outlet end of the air outlet cylinder (442) is communicated with the condenser through the oil outlet pipe (47).

8. The analytical tower for rolling oil mist recovery processing according to claim 1, wherein: and an internal circulation discharge hole of the reboiler (45) is communicated with the mixed oil uniform distributor (42) in the upper cavity (411).