CN220495612U

CN220495612U - Still for recovering ethanol

Info

Publication number: CN220495612U
Application number: CN202321515285.3U
Authority: CN
Inventors: 耿炎; 高政; 魏征; 徐伟; 朱磊; 仓乃石; 王珊珊
Original assignee: Jiangsu Cixing Pharmaceutical Co ltd
Current assignee: Jiangsu Cixing Pharmaceutical Co ltd
Priority date: 2023-06-14
Filing date: 2023-06-14
Publication date: 2024-02-20
Anticipated expiration: 2033-06-14

Abstract

The utility model discloses a distillation still for recovering ethanol, which belongs to the technical field of distillation still, and comprises a still body and a baffle plate, wherein the space in the still body is divided into a first accommodating space and a second accommodating space by the baffle plate, a first heater and a second heater are arranged on the still body, and a liquid inlet pipe, an air outlet pipe, a first liquid return pipe and a second liquid return pipe are connected to the still body, and the liquid inlet pipe is communicated with the first liquid return pipe or the second liquid return pipe. According to the utility model, the space in the kettle body is partitioned by arranging the partition plate in the kettle body, so that the volume of the ethanol solution heated by the heater is reduced, the heating efficiency is improved, and the distillation operation can be performed when the amount of the ethanol recovery solution is small; the liquid return pipes are convenient for selecting the reflux ethanol solution to enter the first accommodating space or the second accommodating space; the honeycomb duct is connected with the liquid return pipe, leads the liquid in the liquid return pipe to the lower layer of the ethanol solution in the accommodating space, reduces the influence of the reflux solution on the last solution in the kettle body, and improves the heating efficiency.

Description

Still for recovering ethanol

Technical Field

The utility model belongs to the technical field of distillation kettles, and particularly relates to a distillation kettle for recovering ethanol.

Background

The working principle of the ethanol recovery device utilizes the principle that the boiling point of ethanol is lower than that of other solutions, and the temperature slightly higher than that of the ethanol is used for heating and volatilizing the dilute ethanol solution to be recovered, and the pure ethanol gas is separated out after the distillation of a tower body, so that the concentration of the ethanol solution is improved, and the purpose of recovering the ethanol is achieved. The equipment structure of the ethanol recovery device generally comprises six parts of a distillation kettle, a distillation tower, a condenser, a cooler, a buffer tank and a high-level storage tank, is suitable for recovering dilute ethanol in the industries of pharmacy, food, light industry, chemical industry and the like, and can be operated only by adding ethanol solution into the distillation kettle to a 1/2-2/3 tank when the distillation kettle is heated in the existing ethanol recovery device, and the heater is not energy-saving in heating the solution in the whole kettle and is low in heating efficiency.

Disclosure of Invention

Technical problems: the utility model aims to solve the problems in the prior art, and aims to provide a distillation still for recovering ethanol, which improves heating efficiency.

The technical scheme is as follows: in order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a still for ethanol recovery, is in including the cauldron body and setting baffle on the internal wall of cauldron, the baffle will the internal space of cauldron separates into first accommodation space and second accommodation space, be equipped with on the cauldron body and be used for right liquid heating's in the first accommodation space first heater and be used for right liquid heating's in the second accommodation space second heater, be connected with feed liquor pipe, outlet duct, first feed liquor pipe and second feed liquor pipe on the cauldron body, the feed liquor pipe with first feed liquor pipe or second feed liquor pipe intercommunication.

Further, the partition plate is arranged at the middle position in the kettle body, and the first heater and the second heater are symmetrically arranged.

Further, the kettle body is a horizontal type kettle body, and the space height in the kettle body is H ₁ The height of the partition plate is H ₂ The H is ₂ ≥0.5H ₁ 。

Further, the kettle body is internally provided with a flow guide pipe corresponding to the positions of the first liquid return pipe and the second liquid return pipe.

Further, the honeycomb duct laminating the internal wall of cauldron.

Further, the kettle body is provided with a third liquid return pipe and a fourth liquid return pipe, the positions of the first liquid return pipe and the second liquid return pipe correspond to the first accommodating space, and the positions of the third liquid return pipe and the fourth liquid return pipe correspond to the second accommodating space.

Further, the first liquid return pipe is connected with the third liquid return pipe through a first intermediate pipe, and the second liquid return pipe is connected with the fourth liquid return pipe through a second intermediate pipe.

Furthermore, the outlet ends of the third liquid return pipe and the fourth liquid return pipe are also provided with a flow guide pipe.

Further, a jacket is arranged outside the kettle body, and an inlet pipe and an outlet pipe are arranged on the jacket.

The beneficial effects are that: compared with the prior art, the utility model has the following advantages:

1. the space in the kettle body is partitioned by arranging the partition plate in the kettle body, so that the volume of the ethanol solution heated by the heater is reduced, the heating efficiency is improved, and the distillation operation can be performed when the amount of the ethanol recovery solution is small;

2. a plurality of liquid return pipes are arranged, and are conveniently connected into an external distillation tower and a cooler through intermediate pipes, and the liquid return pipes are convenient for selecting reflux ethanol solution to enter the first accommodating space or the second accommodating space;

3. the internal honeycomb duct that sets up of cauldron, honeycomb duct laminating cauldron internal portion, honeycomb duct and return liquid pipe intercommunication will return the intraductal liquid water conservancy diversion of liquid to accommodation space ethanol solution's lower floor, reduce the influence of backward flow solution to the internal last solution of cauldron, improve heating efficiency.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of the second liquid return pipe;

fig. 3 is a schematic view of the height structure of the partition.

Detailed Description

The utility model will be further illustrated with reference to specific examples, which are carried out on the basis of the technical solutions of the utility model, it being understood that these examples are only intended to illustrate the utility model and are not intended to limit the scope thereof.

As shown in fig. 1 and 3, a distillation still for recovering ethanol comprises a still body 1 and a baffle plate 2, wherein the still body 1 is a horizontal tank body, the baffle plate 2 is vertically arranged at the middle position of the inner wall of the still body 1 (the arrangement position of the baffle plate 2 can be adjusted according to the requirement, and the baffle plate 2 separates the space in the still body 1 into a first accommodating space 11 and a second accommodating space 12, the first accommodating space 11 and the second accommodating space 12 are symmetrically arranged in the same size, the tops of the two accommodating spaces are communicated, and the space height in the still body 1 is H ₁ The height of the partition plate 2 is H ₂ ，H ₂ ≥0.5H ₁ When the liquid in the first accommodation space 11 or the second accommodation space 12 rises to the top level of the partition 2, it overflows to the other accommodation space.

As shown in fig. 1 and 2, the kettle body 1 is provided with a first heater 3 and a second heater 4, the first heater 3 is arranged at the left end of the kettle body 1, a first heating pipe 31 of the first heater 3 stretches into the first accommodating space 11 to heat liquid in the first accommodating space 11, the second heater 4 is arranged at the right end of the kettle body 1, and a second heating pipe of the second heater 4 stretches into the second accommodating space 12 to heat liquid in the second accommodating space 12, so that a worker can select to work by using a single accommodating space when less ethanol needs to be distilled and heat by using a corresponding heater. The kettle body 1 is externally provided with a jacket 8, an inlet pipe 81 and an outlet pipe 82 are arranged on the jacket 8, and heat conduction oil or steam is introduced into the jacket 8 for heating and heat preservation.

As shown in fig. 1, the kettle body 1 is connected with a liquid inlet pipe 51, an air outlet pipe 52, a first liquid return pipe 61, a second liquid return pipe 62, a third liquid return pipe 63 and a fourth liquid return pipe 64; the first liquid return pipe 61 and the second liquid return pipe 62 are arranged at positions corresponding to the positions of the first accommodating space 11 and are arranged at the upper part of the first accommodating space 11, so that liquid entering the two liquid return pipes flows into the first accommodating space 11; the third liquid return pipe 63 and the fourth liquid return pipe 64 are arranged at the upper part of the second accommodating space 12 corresponding to the second accommodating space 12, so that the two liquid return pipes enter the second accommodating space 12 for liquid to flow; the first liquid return pipe 61 is connected with the third liquid return pipe 63 through a first intermediate pipe 65, the first intermediate pipe 65 is used for being connected into a distillation tower of the ethanol recovery device, liquid condensed in the distillation tower flows back through the first intermediate pipe 65, electromagnetic valves can be respectively arranged on the first liquid return pipe 61 and the third liquid return pipe 63, and therefore the flowing-back liquid is controlled to enter the kettle body 1 from the first liquid return pipe 61 or the third liquid return pipe 63; the second liquid return pipe 62 is connected with the fourth liquid return pipe 64 through a second intermediate pipe 66, the second intermediate pipe 66 is used for being connected with a cooler of the ethanol recovery device, liquid in the cooler flows back through the second intermediate pipe 66, electromagnetic valves can be respectively arranged on the second liquid return pipe 62 and the fourth liquid return pipe 64, and accordingly the flowing-back liquid is controlled to enter the kettle body 1 from the second liquid return pipe 62 or the fourth liquid return pipe 64; so that the returned liquid can be selectively introduced into the first accommodation space 11 or the second accommodation space 12. The liquid inlet pipe 51 is communicated with the first liquid return pipe 61, and the liquid inlet pipe 51 is used for accessing the ethanol solution to be recovered. The air outlet pipe 52 is arranged at the top of the kettle body 1, and the volatile gas is discharged from the air outlet pipe 52 into the distillation tower after the ethanol solution is heated.

As shown in fig. 1 and fig. 2, four flow guide pipes 7 are arranged in the kettle body 1, the positions of the four flow guide pipes 7 respectively correspond to the positions of the four return pipes of the first liquid return pipe 61, the second liquid return pipe 62, the third liquid return pipe 63 and the fourth liquid return pipe 64, the flow guide pipes 7 are attached to the inner wall of the kettle body 1, the upper ends of the flow guide pipes 7 are liquid inlet ends 71, the lower ends of the flow guide pipes are liquid outlet ends 72, the four liquid inlet ends 71 are respectively communicated with the outlet ends of the four liquid return pipes, the liquid outlet ends 72 of the flow guide pipes 7 downwards extend to below half of the space height of the kettle body 1, so that liquid entering into the liquid return pipes downwards enters the kettle body 1 along the flow guide pipes 7, and therefore the liquid does not directly drop to the upper part of ethanol solution, and the influence on the boiling ethanol solution is reduced.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Claims

1. The utility model provides a distillation still for ethanol recovery, its characterized in that includes the cauldron body (1) and sets up baffle (2) on the inner wall of the cauldron body (1), baffle (2) will space separation in the cauldron body (1) is first accommodation space (11) and second accommodation space (12), be equipped with on the cauldron body (1) and be used for right liquid heating's in first accommodation space (11) first heater (3) and be used for right liquid heating's in second accommodation space (12) second heater (4), be connected with feed liquor pipe (51), outlet duct (52), first feed liquor pipe (61) and second feed liquor pipe (62) on the cauldron body (1), feed liquor pipe (51) with first feed liquor pipe (61) or second feed liquor pipe (62) intercommunication.

2. The distillation still for recovering ethanol according to claim 1, wherein the partition plate (2) is disposed at a middle position in the still body (1), and the first heater (3) and the second heater (4) are symmetrically disposed.

3. The distillation still for recovering ethanol according to claim 1, wherein the still body (1) is a horizontal pot body, and the space height in the still body (1) is H ₁ The height of the partition plate (2) is H ₂ The H is ₂ ≥0.5H ₁ 。

4. The distillation still for recovering ethanol according to claim 1, wherein a draft tube (7) corresponding to the positions of the first liquid return tube (61) and the second liquid return tube (62) is provided in the still body (1).

5. The still pot for recovering ethanol according to claim 4, wherein the draft tube (7) is attached to the inner wall of the pot body (1).

6. The still for recovering ethanol according to claim 4, wherein the still body (1) is provided with a third liquid return pipe (63) and a fourth liquid return pipe (64), the positions of the first liquid return pipe (61) and the second liquid return pipe (62) correspond to the first accommodation space (11), and the positions of the third liquid return pipe (63) and the fourth liquid return pipe (64) correspond to the second accommodation space (12).

7. The still for recovering ethanol according to claim 6, wherein the first liquid return pipe (61) is connected to the third liquid return pipe (63) via a first intermediate pipe (65), and the second liquid return pipe (62) is connected to the fourth liquid return pipe (64) via a second intermediate pipe (66).

8. The still for recovering ethanol according to claim 6, wherein the outlet ends of the third liquid return pipe (63) and the fourth liquid return pipe (64) are also provided with a draft pipe (7).

9. The distillation still for recovering ethanol according to claim 1, wherein a jacket (8) is arranged outside the still body (1), and an inlet pipe (81) and an outlet pipe (82) are arranged on the jacket (8).