CN217662034U - Oil smoke and earthy smell eliminating device for vegetable oil plant - Google Patents

Abstract

The utility model relates to a device for eliminating oil smoke and earthy smell in a vegetable oil plant, which comprises a hydrocyclone separator and a circulating cooling mechanism, wherein the top and the bottom of the hydrocyclone separator are respectively provided with a gas outlet and a fluid outlet, and the upper part of the hydrocyclone separator is provided with an oil smoke inlet; the circulating cooling mechanism is communicated with the gas outlet through a pipeline, and a tail gas outlet is arranged on the circulating cooling mechanism. The beneficial effects of the utility model are that simple structure, reasonable in design can effectively retrieve the fluid in the oil smoke, avoids the oil smoke to influence equipment and environment, saves the resource, still can eliminate dispersive fishy smell in the gas simultaneously, the environmental protection.

Description

Oil smoke and earthy smell eliminating device for vegetable oil plant

Technical Field

The utility model relates to a vegetable oil production facility technical field, concretely relates to vegetable oil factory oil smoke and native fishy smell remove device.

Background

In the oil preparation process of the vegetable oil processing plant, the produced oil is often required to be effectively separated from protein meal and the like for safe storage, and the separation means comprises various forms such as a static settling method, a centrifugal separation method, a plate-frame filtration method, a leaf filtration method and the like. At present, most of crude oil in an oil factory contains impurities exceeding the standard, so that not only can resource waste and oil product quality be reduced, but also refining of the next procedure, particularly the performance of the efficiency of a centrifugal machine, can be seriously influenced; the decolorizing process of the refined oil product needs to be carried out by a filter.

In all the current filtering equipment of oil plants, slag is discharged after the filtration is finished so as to effectively recover residual oil and discharge slag, so that the filtering medium is recycled. The first condition of slag discharge is that the scattering property of filter residue is good. In order to ensure the scattering property of filter residue, the current common method is as follows: after the oil is filtered, compressed air, direct steam or compressed nitrogen is used for drying the filter cake. A large amount of atomized oil smoke is generated in the process of drying filter cakes, the oil smoke is dispersed in the air to cause damage to equipment, electric appliances, environmental sanitation and the like, meanwhile, serious resource waste is caused, and fishy smell can be generated due to gas dispersion in the decoloring process.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a vegetable oil factory oil smoke and earthy smell remove device is provided, aim at solving the problem among the prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

a vegetable oil factory lampblack and earthy smell eliminating device comprises a hydrocyclone separator and a circulating cooling mechanism, wherein the top and the bottom of the hydrocyclone separator are respectively provided with a gas outlet and an oil outlet, and the upper part of the hydrocyclone separator is provided with a lampblack inlet; the circulating cooling mechanism is communicated with the gas outlet through a pipeline and is provided with a tail gas outlet.

The utility model has the advantages that: in the treatment process, oil fume to be treated is sent into the hydrocyclone separator from the oil fume inlet in a mode which can be thought by a person skilled in the art for separation, and oil liquid obtained in the separation process is discharged from the oil liquid outlet for recovery, so that the phenomenon that the operation of equipment is influenced by the fact that the oil liquid in the oil fume enters air is avoided; meanwhile, the gas enters the circulating cooling mechanism from the gas outlet for cooling treatment, so that the fishy smell in the gas can be taken out, and the environment is protected.

The utility model discloses simple structure, reasonable in design can effectively retrieve the fluid in the oil smoke, avoids the oil smoke to influence equipment and environment, saves the resource, still can eliminate dispersed fishy smell in the gas simultaneously, environmental protection.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, a second-stage separation pipe is vertically and fixedly installed at the gas outlet, the upper end and the lower end of the second-stage separation pipe are both open, the upper end of the second-stage separation pipe vertically extends upwards to the outside of the hydrocyclone separator and is communicated with the circulating cooling mechanism through a pipeline, and the lower end of the second-stage separation pipe vertically extends downwards to the inside of the hydrocyclone separator; a plurality of flow baffle plates are arranged in the secondary separation pipe from top to bottom at uniform intervals, and the flow baffle plates are respectively in a plurality of spaces for air flow to pass through between the inner walls of the secondary separation pipe.

The beneficial effect who adopts above-mentioned further scheme is that in the processing procedure, the gas that is separated by hydrocyclone gets into the intraductal back of second grade separator, slows down the speed of air current through a plurality of fender flow boards, further separates out oil in the gas and drips, and this oil drips the downflow and discharges from the fluid export, simple structure, and reasonable in design further improves the separation rate of oil smoke, separation effect preferred.

Further, the plurality of flow baffle plates are divided into two flow baffle plate groups and are distributed on two sides in the secondary separation pipe relatively, and the plurality of flow baffle plates in the two flow baffle plate groups are distributed alternately from top to bottom in sequence.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design, the distribution that a plurality of fender flowed the board can effectively prolong the time that gas stayed in the second grade separator tube, further slows down the speed of air current to separate out the oil drop in the gas, separation effect preferred.

Furthermore, a plurality of flow baffle plates are respectively distributed in an inclined manner, the upper ends of the flow baffle plates are respectively connected with the inner wall of the secondary separation pipe, and the lower ends of the flow baffle plates respectively extend downwards in an inclined manner.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design can further slow down the speed of air current, and the separation effect is better.

Further, a decompression pipe is horizontally and fixedly communicated with the oil smoke inlet; the pressure reducing pipe is of a structure with one thin end and the other thick end, and the thick end of the pressure reducing pipe is communicated with the oil smoke inlet, or a pressure reducing valve is arranged on the pressure reducing pipe.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design utilizes the change of decompression pipe diameter to carry out the decompression to the oil smoke and handles, guarantees that the oil smoke that gets into in the hydrocyclone separator can effectively be separated, guarantees the effect of oil smoke separation.

And the bottom of the third-stage separator is communicated with the gas outlet through a pipeline, and the top of the third-stage separator is communicated with the circulating cooling mechanism through a pipeline.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design further separates the oil smoke through tertiary separator, improves the separation effect of oil smoke.

Further, tertiary separator includes the flash tank, the top and the lower part of flash tank respectively through the pipeline with circulative cooling mechanism with the gas outlet intercommunication, its bottom still through extra pipeline with hydrocyclone's top intercommunication, and its inside from supreme even interval installation has a plurality of baffling boards down.

The beneficial effects of adopting above-mentioned further scheme are that during the processing, the gas after the separation gets into in the flash tank to the air current velocity slows down under the blocking of a plurality of baffling boards, further separates out the oil droplet in the gas, and the oil droplet that separates flows down to the hydrocyclone separator in through the pipeline that corresponds, simple structure, reasonable in design, the separation effect preferred of oil smoke.

Furthermore, the baffle plates are divided into two groups of baffle plate groups and are distributed on two sides in the flash tank relatively, and the baffle plates in the two groups of baffle plate groups are distributed alternately from top to bottom in sequence.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design, the distribution of a plurality of baffling boards can effectively prolong the time of gaseous staying in the flash tank, further slows down the speed of air current to separate out the oil drop in the gas, the separation effect preferred.

Further, the oil outlet is communicated with a crude oil pool below the hydrocyclone separator through an emptying pipe, and an emptying valve is fixedly mounted on the emptying pipe.

The beneficial effect who adopts above-mentioned further scheme is that can retrieve the fluid of separating to the crude oil pond in through the evacuation pipe, realizes the effective recovery of fluid, avoids extravagant, resources are saved.

Furthermore, an observation sight glass is arranged at the lower part of the hydrocyclone separator, the part of the emptying pipe corresponding to the lower part of the emptying valve is communicated with the lower end of a siphon pipe, the upper end of the siphon pipe extends upwards to be communicated with the part of the hydrocyclone separator corresponding to the lower part of the observation sight glass, and a safety valve is fixedly arranged on the siphon pipe.

The beneficial effects of adopting above-mentioned further scheme are that simple structure, reasonable in design, the setting of above-mentioned siphon can effectively play the material and seal the effect, can effectively prevent that partial downward flowing gas from also discharging, further improves the effect of oil smoke separation, avoids extravagant.

Drawings

Fig. 1 is a schematic overall structure diagram of a first embodiment of the present invention;

FIG. 2 is a schematic overall structure diagram of a second embodiment of the present invention;

fig. 3 is a schematic structural diagram of the condenser of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a hydrocyclone separator; 2. a secondary separation tube; 3. a flow baffle plate; 4. a pressure reducing tube; 5. a flash tank; 6. a baffle plate; 7. emptying the pipe; 8. an evacuation valve; 9. an observation sight glass; 10. a siphon tube; 11. a safety valve; 12. a crude oil pool; 13. a condenser; 14. a cooling tower; 15. a circulation pump; 16. a water seal tank; 17. a pressure reducing valve.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example 1

As shown in fig. 1 to 3, the present embodiment provides a device for eliminating oil smoke and earthy smell in a vegetable oil factory, which includes a hydrocyclone 1 and a circulating cooling mechanism, wherein the top and the bottom of the hydrocyclone 1 are respectively provided with a gas outlet and an oil outlet, and the upper part of the hydrocyclone 1 is provided with a smoke inlet; the circulating cooling mechanism is communicated with the gas outlet through a pipeline, and a tail gas outlet is arranged on the circulating cooling mechanism.

In the treatment process, the oil smoke to be treated is sent into the hydrocyclone 1 from the oil smoke inlet for separation in a mode which can be thought by a person skilled in the art, and the hydrocyclone 1 is used for centrifugal separation; oil obtained in the separation process flows downwards and is discharged from an oil outlet for recovery, so that the oil in the oil fume is prevented from entering air to influence the operation of equipment; meanwhile, the gas flows upwards and enters the circulating cooling mechanism from the gas outlet for cooling treatment, so that the fishy smell in the gas can be taken out, and the environment is protected.

The hydrocyclone 1 adopts the prior art, and the specific structure and principle thereof are not described in detail herein.

Preferably, in this embodiment, the circulating cooling mechanism includes a condenser 13 and a cooling tower 14, and the condenser 13 is provided with a first interface and a second interface which are communicated with each other, and a third interface and a fourth interface which are communicated with each other; the bottom of the cooling tower 14 is communicated with the first connector through a first pipeline, the top of the cooling tower is communicated with the second connector through a second pipeline, and a circulating pump 15 is fixedly installed on the first pipeline; in addition, the gas outlet is communicated with the third interface through a pipeline, the fourth interface is a tail gas exhaust port, and the fourth interface is communicated with the water seal tank 16 through a pipeline.

During treatment, gas enters the condenser 13 from the third interface and is discharged from the fourth interface; in the process, the cooling water in the cooling tower 14 is sent into the condenser 13 through the circulating pump 15 and then exchanges heat with the gas, so that the temperature of the gas is reduced, the heat in the gas is recovered and utilized, and the energy consumption is saved.

This embodiment simple structure, reasonable in design can effectively retrieve the fluid in the oil smoke, avoids the oil smoke to influence equipment and environment, saves the resource, still can eliminate dispersive fishy smell in the gas simultaneously, the environmental protection.

Example 2

On the basis of the embodiment 1, in the embodiment, the gas outlet is vertically and fixedly provided with the secondary separation pipe 2, the upper end and the lower end of the secondary separation pipe 2 are both open, the upper end of the secondary separation pipe vertically extends upwards to the outside of the hydrocyclone 1 and is communicated with the circulating cooling mechanism through a pipeline, and the lower end of the secondary separation pipe vertically extends downwards to the inside of the hydrocyclone 1; a plurality of baffle plates 3 are arranged in the second-stage separation pipe 2 from top to bottom at even intervals, and spaces for air flow to pass are reserved between the baffle plates 3 and the inner wall of the second-stage separation pipe 2 respectively.

In the processing procedure, the gas that is separated by hydrocyclone 1 gets into in the second grade separator 2 back, slows down the speed of air current through a plurality of fender flow boards 3, further separates out oil in the gas and drips, and this oil drips downward flow and discharges from the fluid export, simple structure, and reasonable in design further improves the separation rate of oil smoke, separation effect preferred.

Preferably, in the present embodiment, the cross section of the secondary separation pipe 2 may be circular or rectangular.

Example 3

On the basis of embodiment 2, in this embodiment, the plurality of flow baffle plates 3 are divided into two groups of flow baffle plate groups and are relatively distributed on two sides in the secondary separation pipe 2, and the plurality of flow baffle plates 3 in the two groups of flow baffle plate groups are alternately distributed from top to bottom in sequence.

This scheme simple structure, reasonable in design, a plurality of fender flow board 3 distribute can effectively prolong the time of gaseous 2 internal stay of second grade separator tube, further slow down the speed of air current to separate out the oil drop in the gas, the separation effect preferred.

Preferably, in this embodiment, the number of the baffle plates 3 in the two baffle plate groups may be the same or may not be the same.

Besides the above embodiment, a plurality of baffle plates 3 can be uniformly distributed on the same side of the secondary separation pipe 2 from top to bottom, but the air flow slowing effect is not as good as that of the above solution.

Example 4

In the present embodiment, on the basis of any one of embodiments 2 to 3, the plurality of baffle plates 3 are respectively distributed in an inclined manner, the upper ends of the baffle plates are respectively connected to the inner wall of the secondary separation pipe 2, and the lower ends of the baffle plates extend downwards in an inclined manner.

This scheme simple structure, reasonable in design can further slow down the speed of air current, and the separation effect is better.

Preferably, in this embodiment, the upper ends of the flow baffle plates 3 may be welded to the inner wall of the secondary separation pipe 2, or detachably connected to the inner wall of the secondary separation pipe 2 by bolts.

In addition to the above embodiment, a plurality of baffle plates 3 may be horizontally disposed.

Example 5

In addition to the above embodiments, in the present embodiment, the pressure reducing pipe 4 is horizontally and fixedly communicated with the soot inlet, and the pressure reducing pipe 4 has a structure with one thin end and the other thick end, and the thick end is communicated with the soot inlet (as shown in fig. 1).

This scheme simple structure, reasonable in design utilizes the change of 4 pipe diameters of decompression pipe to carry out the decompression processing to the oil smoke, guarantees to get into the oil smoke in hydrocyclone 1 and can effectively be separated, guarantees the effect of oil smoke separation.

In addition to the above embodiment, the decompression tube 4 having a uniform diameter may be used, and in this case, the decompression valve 17 (shown in fig. 2) needs to be fixedly attached to the decompression tube 4.

Example 6

On the basis of the above embodiments, the present embodiment further includes a third-stage separator, the bottom of the third-stage separator is communicated with the gas outlet through a pipeline, and the top of the third-stage separator is communicated with the circulating cooling mechanism through a pipeline.

This scheme simple structure, reasonable in design further separates the oil smoke through tertiary separator, improves the separation effect of oil smoke.

Example 7

On the basis of embodiment 6, in this embodiment, tertiary separator includes flash tank 5, and flash tank 5's top and lower part are respectively through pipeline and circulative cooling mechanism and gas outlet intercommunication, and its bottom still communicates through extra pipeline and hydrocyclone 1's top, and its inside from bottom to top even interval installs a plurality of baffling boards 6.

During the processing, the gas after the separation gets into in the flash tank 5 to airflow velocity slows down under the blocking of a plurality of baffling boards 6, further separates out oil in the gas and drips, and the oil that separates flows down to the hydrocyclone separator 1 in through the pipeline that corresponds in, simple structure, reasonable in design, the separation effect preferred of oil smoke.

Based on the scheme, the lower part of the flash tank 5 is communicated with the upper end of the secondary separation pipe 2 through a pipeline, the bottom of the flash tank is communicated with the top of the hydrocyclone 1 through a pipeline, and the top of the flash tank is communicated with a third connector on the condenser 13 through a pipeline.

Example 8

On the basis of embodiment 7, in this embodiment, the plurality of baffles 6 are divided into two groups of baffle groups and are oppositely distributed on two sides in the flash tank 5, and the plurality of baffles 6 in the two groups of baffle groups are alternately distributed from top to bottom in sequence.

This scheme simple structure, reasonable in design, the distribution of a plurality of baffling boards 6 can effectively prolong the time of gaseous staying in flash tank 5, further slows down the speed of air current to separate out the oil drop in the gas, separation effect preferred.

In the present embodiment, the flash tank 5 may have a rectangular or cylindrical structure.

Preferably, in this embodiment, the number of baffles 6 in the two sets of baffle groups may be the same or different.

In addition to the above embodiments, the baffles 6 may be evenly spaced on the same side of the flash tank 5 from top to bottom, but this approach does not provide the same reduction in airflow.

Preferably, in this embodiment, the plurality of baffles 6 are respectively distributed in an inclined manner, the upper ends of the baffles are respectively connected with the inner wall of the flash box 5, and the lower ends of the baffles extend downwards in an inclined manner.

This scheme simple structure, reasonable in design can further slow down the speed of air current, and the separation effect is better.

Preferably, in this embodiment, the upper ends of the baffles 6 may be welded to the inner wall of the flash box 5, or detachably connected to the inner wall of the flash box 5 by bolts.

In addition to the above-described embodiment, a plurality of baffles 6 may be horizontally disposed.

Example 9

On the basis of the above embodiments, in the present embodiment, the oil outlet is communicated with the crude oil pool 12 located below the hydrocyclone 1 through the emptying pipe 7, and the emptying valve 8 is fixedly installed on the emptying pipe 7.

During treatment, the separated oil can be recycled to the crude oil pool 12 through the emptying pipe 7, so that the oil can be effectively recycled, waste is avoided, and resources are saved.

Preferably, in this embodiment, the evacuation valve 8 is preferably an electronic valve.

Example 10

In addition to embodiment 9, in this embodiment, the lower portion of the hydrocyclone 1 is provided with an observation mirror 9, the portion of the emptying pipe 7 corresponding to the lower portion of the emptying valve 8 is communicated with the lower end of a siphon pipe 10, the upper end of the siphon pipe 10 extends upwards to be communicated with the portion of the hydrocyclone 1 corresponding to the lower portion of the observation mirror 9, and a safety valve 11 is fixedly mounted on the siphon pipe.

This scheme simple structure, reasonable in design, above-mentioned siphon 10 set up and can effectively play the material effect of sealing, can effectively prevent that partial downflow's gas also from discharging, further improves the effect of oil smoke separation, avoids extravagant.

Preferably, in this embodiment, the lower portion of the hydrocyclone 1 is provided with an opening penetrating from inside to outside, and the transparent observation mirror 9 is fixedly installed at the opening and seals the opening, so as to facilitate observation of the liquid level condition in the hydrocyclone 1.

Above-mentioned hydrocyclone 1 during operation produces centrifugal force, and fluid downflow under the effect of centrifugal force, and most gas upflow, but have few gas also can be along with fluid downflow, and the liquid level effect can be played in setting up of siphon 10, can prevent effectively that few gas from discharging from hydrocyclone 1's bottom.

Preferably, in this embodiment, the safety valve 11 is preferably a safety ball valve, and the safety ball valve is preferably an electronic valve.

In addition, each valve is connected with the controller respectively, and the controller controls the opening and closing of each valve, and degree of automation is high.

The working principle of the utility model is as follows:

firstly, oil smoke to be treated is sent into a hydrocyclone 1 from an oil smoke inlet to be separated, the hydrocyclone 1 is used for centrifugal separation, oil liquid flows downwards and is discharged into a crude oil pool 12 from an oil liquid outlet, and gas flows upwards into a secondary separation pipe 2;

secondly, the gas enters the secondary separation pipe 2, the airflow speed is slowed down by the baffles 3, oil drops in the gas are further separated, the oil drops flow downwards and are discharged into the crude oil pool 12 from the oil outlet, and the gas enters the flash tank 5;

thirdly, the gas enters the flash tank 5, the airflow speed is slowed down under the blocking of the baffle plates 6, oil drops in the gas are further separated, the oil drops flow downwards into the hydrocyclone 1 and are discharged into the crude oil pool 12 from the oil liquid outlet, and the high-temperature gas enters the condenser 13;

fourthly, high-temperature gas enters the condenser 13 from the third interface of the condenser 13 and exchanges heat with cooling water sent by the circulating pump 15 to form low-temperature gas, and the low-temperature gas is discharged into the water seal tank 16 from the fourth interface.

It should be noted that, the electronic components according to the present invention are all of the prior art, and the above components are electrically connected to a controller (model TC-SCR), and a control circuit between the controller and each component is of the prior art.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (10)

1. The utility model provides a vegetable oil factory oil smoke and native fishy smell remove device which characterized in that: the oil fume circulating cooling device comprises a hydrocyclone separator (1) and a circulating cooling mechanism, wherein a gas outlet and an oil outlet are respectively formed in the top and the bottom of the hydrocyclone separator (1), and an oil fume inlet is formed in the upper part of the hydrocyclone separator (1); the circulating cooling mechanism is communicated with the gas outlet through a pipeline and is provided with a tail gas outlet.

2. The vegetable oil factory oil smoke and earthy smell eliminator of claim 1, characterized in that: a secondary separation pipe (2) is vertically and fixedly installed at the gas outlet, the upper end and the lower end of the secondary separation pipe (2) are both open, the upper end of the secondary separation pipe vertically extends upwards to the outside of the hydrocyclone separator (1) and is communicated with the circulating cooling mechanism through a pipeline, and the lower end of the secondary separation pipe vertically extends downwards to the inside of the hydrocyclone separator (1); a plurality of flow baffle plates (3) are installed at even intervals from top to bottom in the second-stage separation pipe (2), and are a plurality of flow baffle plates (3) respectively with leave the space that supplies the air current to pass through between the inner wall of second-stage separation pipe (2).

3. The vegetable oil factory oil smoke and earthy smell eliminator of claim 2, characterized in that: the flow baffle plates (3) are divided into two groups of flow baffle plate groups and are distributed on two sides in the secondary separation pipe (2) relatively, and the flow baffle plates (3) in the two groups of flow baffle plate groups are distributed alternately from top to bottom in sequence.

4. The vegetable oil factory oil smoke and earthy smell eliminator of claim 2, characterized in that: the flow baffle plates (3) are respectively distributed in an inclined manner, the upper ends of the flow baffle plates are respectively connected with the inner wall of the secondary separation pipe (2), and the lower ends of the flow baffle plates respectively extend downwards in an inclined manner.

5. The vegetable oil factory oil smoke and earthy smell elimination device according to any one of claims 1 to 4, characterized in that: the oil fume inlet is horizontally and fixedly communicated with a decompression pipe (4); the pressure reducing pipe (4) is of a structure with one thin end and the other thick end, the thick end of the pressure reducing pipe is communicated with the oil smoke inlet, or a pressure reducing valve (17) is arranged on the pressure reducing pipe (4).

6. The vegetable oil plant fumes and earthy smell elimination apparatus of any one of claims 1 to 4, characterized in that: the bottom of the three-stage separator is communicated with the gas outlet through a pipeline, and the top of the three-stage separator is communicated with the circulating cooling mechanism through a pipeline.

7. The device of claim 6, wherein the device for eliminating oil fumes and earthy smell of the vegetable oil factory comprises: the three-stage separator comprises a flash tank (5), the top and the lower part of the flash tank (5) are communicated with the circulating cooling mechanism and the gas outlet through pipelines respectively, the bottom of the flash tank is communicated with the top of the hydrocyclone (1) through an additional pipeline, and a plurality of baffle plates (6) are arranged in the flash tank from bottom to top at uniform intervals.

8. The device of claim 7, wherein the device is for eliminating oil fumes and earthy smell in a vegetable oil factory, and comprises: the baffle plates (6) are divided into two groups of baffle plates and are oppositely distributed on two sides in the flash tank (5), and the baffle plates (6) in the two groups of baffle plates are alternately distributed from top to bottom in sequence.

9. The vegetable oil factory oil smoke and earthy smell elimination device according to any one of claims 1 to 4, characterized in that: the oil outlet is communicated with a crude oil pool (12) below the hydrocyclone separator (1) through an emptying pipe (7), and an emptying valve (8) is fixedly mounted on the emptying pipe (7).

10. The vegetable oil factory oil smoke and earthy smell eliminator of claim 9, characterized in that: an observation sight glass (9) is arranged at the lower part of the hydrocyclone (1), the part of the emptying pipe (7) corresponding to the lower part of the emptying valve (8) is communicated with the lower end of a siphon pipe (10), the upper end of the siphon pipe (10) upwards extends to the part of the hydrocyclone (1) corresponding to the lower part of the observation sight glass (9) to be communicated with the siphon pipe, and a safety valve (11) is fixedly arranged on the siphon pipe.

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