CN211255827U

CN211255827U - Naphtha extraction device

Info

Publication number: CN211255827U
Application number: CN201922431513.9U
Authority: CN
Inventors: 张宝月
Original assignee: Liaoyang Xinxin Chemical Co ltd
Current assignee: Liaoyang Xinxin Chemical Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-08-14
Anticipated expiration: 2029-12-30

Abstract

The utility model provides a naphtha extraction device, include: the device comprises a box body, wherein a partition plate is arranged in the box body and divides the interior of the box body into a stirring chamber positioned at the upper part and a plurality of classification chambers positioned at the lower part in an isolating way; the top of the box body is provided with a stirring motor, and the stirring motor is connected with two groups of stirring paddles with opposite rotation directions through a planet gear carrier; the plurality of sorting chambers includes: the device comprises an extraction chamber, a naphtha collecting chamber and a wastewater collecting chamber; the extraction chamber is internally and hermetically connected with a lifting plate in a sliding manner, the naphtha collection chamber is internally and horizontally connected with an inserting plate extending to the extraction chamber in a sliding manner, the end part of the inserting plate is provided with a sharp head, and the extraction chamber is internally provided with a sealed socket matched with the sharp head. The utility model discloses in, drive two sets of stirring rakes that revolve to opposite through agitator motor, make the mixture intensive mixing to adopt the lifter plate to rise the naphtha oil reservoir to the height relative in tip position, adopt the picture peg to separate the naphtha oil reservoir and bottom mixture layer, drainage to naphtha collecting chamber makes the volume of remaining still less, is convenient for extract.

Description

Naphtha extraction device

Technical Field

The utility model relates to naphtha frame technical field especially involves a naphtha extraction device.

Background

Low temperature methanol washing is a process for purification and separation of raw gas. The process utilizes the characteristic that methanol has great solubility to acid gas at low temperature to remove acid gas, naphtha and the like in the raw material gas. The recovery of naphtha is an important part, and the most of the prior art adopts an extractor and an azeotropic tower for internal circulation so as to ensure the complete recovery of heavy components such as naphtha. The original extraction effect is not ideal due to various reasons such as the size and the structure of the equipment. In order to enhance the extraction effect, the circulation amount is often increased, and the energy consumption and the time are increased.

In the existing naphtha extraction, the absorption pipes are arranged in layers, the layered naphtha flows into the absorption pipes with corresponding heights by opening the electromagnetic valves on the corresponding absorption pipes, and the residual naphtha is refluxed and re-extracted; the requirement on the whole injection quantity is high, the extraction can be matched with the suction pipes with different heights, the residual naphtha quantity is large, and unnecessary energy waste is caused.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a naphtha extraction device adopts the grafting mode to keep apart the extraction with the naphtha layer, and the volume of remaining is less.

The utility model provides a naphtha extraction device, this naphtha extraction device includes: a box body; the top of the box body is provided with a flash tower, and the front surface of the box body is provided with an observation window along the height direction; wherein the content of the first and second substances,

a partition board is arranged in the box body, and the partition board divides the interior of the box body into a stirring chamber positioned at the upper part and a plurality of classification chambers positioned at the lower part; the top of the box body is provided with a stirring motor, the stirring motor is connected with two groups of stirring paddles extending into the stirring chamber through a planet gear carrier, and the rotating directions of the two groups of stirring paddles are opposite;

the plurality of sorting chambers includes: the extraction chamber is positioned below the stirring chamber, and the naphtha collecting chamber and the wastewater collecting chamber are respectively positioned at two sides of the extraction chamber; the stirring chamber is communicated with the extraction chamber, a lifting plate is connected in the extraction chamber in a sealing and sliding manner, an inserting plate extending to the extraction chamber is horizontally connected in the naphtha collecting chamber in a sliding manner, a pointed end is arranged at the end part of the inserting plate, and a sealing socket matched with the pointed end is arranged in the extraction chamber;

a propulsion device is arranged outside the box body and is connected with the plug board through a connecting board, a flow guide slope is arranged at the connecting position of the plug board and the connecting board, and a leak hole is formed in the connecting board; a first electromagnetic valve communicated with the wastewater collection chamber is arranged at the lower part of the extraction chamber;

the device also comprises an electric pump, wherein the suction end of the electric pump is connected with the bottom of the naphtha collecting chamber, and the pump oil end of the electric pump is communicated with the stirring chamber.

Preferably, the planet carrier includes: the sun gear, a plurality of planet gears which are meshed with the sun gear in the circumferential direction and an inner gear ring which wraps the planet gears; the inner gear ring is meshed with the plurality of planet gears simultaneously, and an output shaft of the stirring motor is connected with the sun gear.

Preferably, one group of the stirring paddles is connected with the sun gear, and the other group of the stirring paddles is circumferentially distributed and connected on the inner gear ring.

Preferably, a second electromagnetic valve is arranged at the joint of the stirring chamber and the extraction chamber.

Preferably, the bottom of the extraction chamber is provided with a hydraulic lifting rod, and the hydraulic lifting rod is connected with the lifting plate.

Preferably, the insert plate is sealingly and slidably inserted into the extraction chamber.

Preferably, the propelling device is an electric telescopic rod, and a rod head of the electric telescopic rod is connected with the connecting plate.

Preferably, an oil discharge pipe is arranged at the bottom of the extraction chamber, and a switch valve is arranged on the oil discharge pipe.

The utility model discloses in, drive two sets of stirring rakes that revolve to opposite through agitator motor, make the mixture intensive mixing to adopt the lifter plate to rise the naphtha oil reservoir to the height relative in tip position, adopt the picture peg to separate the naphtha oil reservoir and bottom mixture layer, drainage to naphtha collecting chamber makes the volume of remaining still less, is convenient for extract.

Drawings

FIG. 1 is a schematic structural diagram of a naphtha extraction plant provided in an embodiment of the present invention;

fig. 2 is a sectional view of a naphtha extraction apparatus provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a planet carrier according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of an insert board according to an embodiment of the present invention.

Reference numerals:

the device comprises a box body-1, a flash tower-2, a stirring chamber-3, an extraction chamber-4, a naphtha collecting chamber-5, a wastewater collecting chamber-6, a stirring motor-7, a planet gear carrier-8, a first stirring paddle-9, a second stirring paddle-10, a second electromagnetic valve-11, a first electromagnetic valve-12, a lifting plate-13, a hydraulic lifting rod-14, an inserting plate-15, an electric telescopic rod-16, a sealing socket-17, an oil discharge pipe-18, a switch valve-19, an electric pump-20, a water discharge pipe-21, an observation window-22, a sun gear-23, a planet gear-24, an inner gear ring-25, a connecting plate-26, a leak hole-27, a pointed end-28 and a diversion slope-29.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Firstly, in order to facilitate understanding of the naphtha extraction device provided in the embodiment of the present application, an application scenario of the naphtha extraction device is described first, and the naphtha extraction device in the embodiment of the present application adopts a method of raising a naphtha layer to a suitable height and inserting the naphtha layer into a mixture layer of a bottom layer for distinguishing, so that the residual naphtha amount is small, and waste of resources is reduced.

The naphtha extraction apparatus provided in the examples of the present application will be described below with reference to the drawings.

Referring first to fig. 1-2, a naphtha extraction plant in an embodiment of the present application includes: a box body 1; a strip-shaped observation window 22 is provided in the height direction of the tank 1 to observe the height of the naphtha during separation.

The top of the box body 1 is provided with a flash tower 2, corresponding naphtha, circulating water, steam and methanol are fully mixed through a stirring chamber 3 in the corresponding interface box body 1, the naphtha is easily absorbed and dissolved by the methanol, the naphtha and the water are incompatible with each other, after a stirring motor 7 stirs liquid of the naphtha, the water and the methanol, the liquid enters an extraction chamber 4 to be stood to form corresponding layers, corresponding steam interfaces are arranged in classification chambers such as the stirring chamber 3 and the extraction chamber 4, low-pressure steam is connected to prevent the temperature from being too low and condensed in the extraction process, the extraction methods are common extraction methods in the prior art, and redundant description is not performed.

In the embodiment, in order to better mix the mixture in the upper stirring chamber 3, the stirring motor 7 is connected with two groups of stirring paddles extending into the stirring chamber 3 through the planet gear carrier 8, and the rotating directions of the two groups of stirring paddles are opposite; specifically, as shown in fig. 3, the carrier 8 includes: a sun gear 23, a plurality of planetary gears 24 circumferentially engaged with the sun gear 23, and an inner gear ring 25 wrapping the plurality of planetary gears 24; wherein, the inner gear ring 25 is meshed with a plurality of planet gears 24 at the same time, and the output shaft of the stirring motor 7 is connected with the sun gear 23.

One group of the stirring paddles is a first stirring paddle 9 connected with the sun gear 23, and the other group of the stirring paddles is a plurality of second stirring paddles 10 which are circumferentially distributed and connected on the inner gear ring 25. In the structure, the rotation directions of the first stirring paddle 9 and the plurality of second stirring paddles 10 are opposite through the arrangement of the planetary gear 24, so that the mixture is better mixed.

With continued reference to fig. 2, a plurality of sorting chambers are provided below the stirring chamber 3, the plurality of sorting chambers including: and the extraction chamber 4 is positioned below the stirring chamber 3, and the stirring chamber 3 is communicated with the extraction chamber 4 through a first electromagnetic valve 12.

The sorting chamber further comprises: a naphtha collecting chamber 5 and a wastewater collecting chamber 6 respectively positioned at both sides of the extraction chamber 4; wherein, the stirring chamber 3 is communicated with the extraction chamber 4, and a second electromagnetic valve 11 is arranged at the joint of the stirring chamber 3 and the extraction chamber 4.

And the interior of the extraction chamber 4 is hermetically and slidably connected with a lifting plate 13, the bottom of the extraction chamber 4 is provided with a hydraulic lifting rod 14, and the hydraulic lifting rod 14 is connected with the lifting plate 13. The mixture is enabled to stand for a period of time to form layering by opening the second electromagnetic valve 11, and the hydraulic telescopic rod slowly rises or falls through the layered position checked by the observation window 22 to adjust the position height of the naphtha oil layer.

When the naphtha layer is distinguished from the mixture layer, in the embodiment, an inserting plate 15 extending to the extraction chamber 4 is smoothly connected with water in the naphtha collecting chamber 5, and the inserting plate 15 is hermetically and slidably inserted in the extraction chamber 4. A sharp head 28 is arranged at the end part of the inserting plate 15, and a sealing socket 17 matched with the sharp head 28 is arranged in the extraction chamber 4;

a propelling device is arranged outside the box body 1 and is connected with the plugboard 15 through a connecting plate 26; as shown in fig. 4, a diversion slope 29 is arranged at the connection position of the inserting plate 15 and the connecting plate 26, and a leak hole 27 is arranged on the connecting plate 26. The propelling device is an electric telescopic rod 16, and the rod head of the electric telescopic rod 16 is connected with a connecting plate 26.

Can see in the above-mentioned structure, when lifter plate 13 is sealed to slide, adjust through observation window 22 to naphtha layer bottom position and tip 28 and be located same water flat line, treat static back, start electric telescopic handle 16, thereby tip 28 inserts into the naphtha bottom, cooperate with sealed socket 17 after the grafting, realize the isolation with the mixture layer, this moment water conservancy diversion slope 29 is with naphtha drainage to connecting plate 26 on, thereby flow to naphtha collecting chamber 5 through leak 27, the bottom of extraction chamber 4 is provided with oil drain pipe 18, be provided with ooff valve 19 on the oil drain pipe 18, through opening ooff valve 19, collect the naphtha.

In addition, the residual part of naphtha is mixed with the mixture, in the embodiment, the switch valve 19 is closed after the collected naphtha is adopted, the lifting plate 13 is continuously lifted, the process of extracting naphtha is repeated, the residual naphtha is continuously drained to the naphtha collecting chamber 5, the electric pump 20 is adopted to pump the naphtha into the mixture for mixing and stirring again, the suction end of the electric pump 20 is connected with the bottom of the naphtha collecting chamber 5, and the pumping end of the electric pump 20 is communicated with the stirring chamber 3.

The lifting plate 13 is then lowered to the lowest position, and by opening the second solenoid valve, the mixture is discharged to the waste water collecting chamber 6, and the waste water collecting chamber 6 is discharged to the outside through the drain pipe 21.

The utility model discloses in, drive two sets of stirring rakes that revolve to opposite through agitator motor 7, make the mixture intensive mixing to adopt lifter plate 13 to rise the naphtha oil reservoir to the height relative in tip 28 position, adopt picture peg 15 to separate the naphtha oil reservoir and bottom mixture layer, drainage to naphtha collecting chamber 5 makes the volume of remaining still less, is convenient for extract.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A naphtha extraction device, comprising: a box body; the top of the box body is provided with a flash tower, and the front surface of the box body is provided with an observation window along the height direction; wherein the content of the first and second substances,

2. The naphtha extraction plant as set forth in claim 1 wherein said planet carrier comprises: the sun gear, a plurality of planet gears which are meshed with the sun gear in the circumferential direction and an inner gear ring which wraps the planet gears; the inner gear ring is meshed with the plurality of planet gears simultaneously, and an output shaft of the stirring motor is connected with the sun gear.

3. The naphtha extraction plant of claim 2 wherein one of the sets of paddles is connected to the sun gear and the other set of paddles is circumferentially distributed and connected to the inner ring gear.

4. The naphtha extraction plant as set forth in claim 1 wherein a second solenoid valve is provided at the junction of said stir chamber and said extraction chamber.

5. The naphtha extraction plant as set forth in claim 4 wherein a hydraulic lifter is provided at the bottom of the extraction chamber and the hydraulic lifter is connected to the lifter plate.

6. The naphtha extraction plant as set forth in claim 1 wherein said insert plate is sealingly slidably inserted into said extraction chamber.

7. The naphtha extraction device as set forth in claim 6, wherein said propulsion device is an electric telescopic rod, a rod head of said electric telescopic rod being connected to said connection plate.

8. The naphtha extraction apparatus as set forth in any one of claims 1 to 7, wherein an oil discharge pipe is provided at a bottom of the extraction chamber, and an on-off valve is provided on the oil discharge pipe.