CN210448130U

CN210448130U - Distillation recovery plant

Info

Publication number: CN210448130U
Application number: CN201921421359.0U
Authority: CN
Inventors: 张杨; 常欢; 郑操; 斯琴朝克图; 王守明; 李长春; 袁玲; 李锦绣; 戴余军; 王立华; 姜益泉; 况启生
Original assignee: Hubei Jinri Ecological Energy Co ltd; Hubei Engineering University
Current assignee: Hubei Jinri Ecological Energy Co ltd; Hubei Engineering University
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-05-05
Anticipated expiration: 2029-08-29

Abstract

The utility model discloses a distillation recovery device, which comprises a raw material heating tank, a heat source, a steam condenser and a recovery tank, wherein the raw material heating tank is of a tank body structure and is used for containing raw materials to be distilled and recovered; the heat source is positioned below the raw material heating tank and used for heating the raw material heating tank; the steam condenser is positioned above the raw material heating tank and is used for condensing the evaporated raw material steam; the recovery tank is positioned on one side of the raw material heating tank, is connected with the steam condenser through a recovery pipe and is used for recovering the distilled solvent. The utility model has good distillation effect, less water consumption, high recovery rate and reduced total cost.

Description

Distillation recovery plant

Technical Field

The utility model belongs to the technical field of experimental facilities, involve distillation plant, concretely relates to distillation recovery plant.

Background

Distillation is a thermodynamic separation process that utilizes the difference in boiling points of components in a mixed liquid or liquid-solid system to vaporize lower boiling components and recondense to separate the entire component, a combination of both vaporization and condensation operations. Compared with other separation means, such as extraction, filtration crystallization, etc., distillation has the advantage that no other solvents than the system components need to be used, thereby ensuring that no new impurities are introduced. Distillation is usually carried out by using distillation recovery equipment, which is an important experimental device and is an important device for recovering various solvents in industrial production.

The problems existing in the prior art mainly comprise: the existing various distillators and rotary distillators have the problems of low heat exchange rate between cooling water and a steam pipeline, slow condensation of solvent steam into liquid, more volatilization, low efficiency and the like, and waste of water resources is also caused; the vacuum pumping can reduce the distillation temperature and accelerate the distillation speed, but simultaneously causes the loss of the solvent and increases the production cost.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem that exists among the prior art, the utility model provides a distillation recovery plant has good distillation effect, and the water consumption is few, and the rate of recovery is high, has reduced the total cost.

Therefore, the utility model adopts the following technical scheme:

a distillation recovery device comprises a raw material heating tank, a heat source, a steam condenser and a recovery tank, wherein the raw material heating tank is of a tank body structure and is used for containing a raw material to be distilled and recovered; the heat source is positioned below the raw material heating tank and used for heating the raw material heating tank; the steam condenser is positioned above the raw material heating tank and is used for condensing the evaporated raw material steam; the recovery tank is positioned on one side of the raw material heating tank, is connected with the steam condenser through a recovery pipe and is used for recovering the distilled solvent.

Preferably, a steam pipe is arranged above the raw material heating tank and connected with the steam condenser, and the heated raw material steam enters the steam condenser through the steam pipe; the steam condenser comprises a partition plate, an air condenser and a water condenser, wherein the partition plate is positioned in the middle of the inside of the steam condenser and is used for separating the air condenser from the water condenser; the water condenser is positioned above the partition plate and comprises a first water condensing pot for primarily condensing steam entering from the steam pipe; the air condenser is located below the partition plate and is provided with a vapor-liquid pipe and a liquid outlet pipe, the vapor-liquid pipe and the liquid outlet pipe are sequentially connected, and the liquid outlet pipe is connected with an inlet of the recovery pipe and used for re-condensing and outputting the condensed solvent to the recovery tank.

Preferably, a second water condensing pot is installed at the top of the recovery tank and used for condensing the recovered solvent again; one side of the recovery tank is provided with a recovery pipe joint which is connected with a recovery pipe; and a liquid taking pipe is arranged on the other side of the recovery tank and used for taking out the recovered solvent.

Preferably, the raw material heating tank and the steam condenser are divided into an upper part and a lower part by a heat insulation plate or a metal column.

Preferably, a feeding pipe joint and a discharging pipe joint are arranged on the side of the raw material heating tank and are used for feeding and discharging materials respectively.

Preferably, a thermometer and a temperature controller are arranged above the raw material heating tank and used for measuring and controlling the temperature in the raw material heating tank; and a pressure gauge is arranged above the steam condenser and used for measuring the pressure in the steam condenser.

Preferably, the distillation recovery apparatus is provided with a separate refrigeration system for providing a cold source.

Preferably, the refrigeration system (18) comprises air conditioning refrigeration, cold air refrigeration and ice block refrigeration.

Preferably, the temperature of the distillation is determined according to the boiling point of the recovered solvent, and the temperature of the distillation during the distillation is 2-10 ℃ higher than the boiling point of the solvent.

Preferably, the recovered solvent comprises: water, methanol, ethanol, acetone, petroleum ether, carbon trichloride and carbon tetrachloride.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) simple structure, convenient to use, the heat energy exchange is fast, and the steam condensation is effectual, has saved the time of distillation.

(2) The water consumption is low, the recovery rate is high, the resources are saved, and the total cost is reduced.

(3) The heating is even, the potential safety hazard caused by uneven heating is eliminated, and the safety is greatly improved.

Drawings

Fig. 1 is a schematic structural composition diagram of a distillation recovery device provided by the present invention.

Description of reference numerals: 1. a raw material heating tank; 2. a heat source; 3. a steam pipe; 4. a thermometer; 5. a temperature controller; 6. a feed pipe joint; 7. a discharge pipe joint; 8. a steam condenser; 9. a partition plate; 10. an air condenser; 11. a water condenser; 12. a vapor-liquid pipe; 13. a liquid outlet pipe; 14. a recovery pipe; 15. a recycling pipe joint; 16. a pressure gauge; 17. a first water condensing pan; 18. a refrigeration system; 19. a recovery tank; 20. a second water condensing pot; 21. a liquid outlet pipe joint; 22. a metal pillar.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are only used for explaining the present invention, but not for limiting the present invention.

As shown in fig. 1, the utility model discloses a distillation recovery device, which comprises a raw material heating tank 1, a heat source 2, a steam condenser 8 and a recovery tank 19, wherein the raw material heating tank 1 is of a tank structure and is used for containing raw materials to be distilled and recovered; the heat source 2 is positioned below the raw material heating tank 1 and used for heating the raw material heating tank 1; the steam condenser 8 is positioned above the raw material heating tank 1 and is used for condensing the evaporated raw material steam; the recovery tank 19 is located at one side of the raw material heating tank 1, is connected with the steam condenser 8 through a recovery pipe 14, and is used for recovering the distilled solvent.

Specifically, a steam pipe 3 is arranged above the raw material heating tank 1 and connected with a steam condenser 8, and heated raw material steam enters the steam condenser 8 through the steam pipe 3; the steam condenser 8 comprises a partition plate 9, an air condenser 10 and a water condenser 11, wherein the partition plate 9 is positioned in the middle of the inside of the steam condenser 8 and is used for separating the air condenser 10 from the water condenser 11; the water condenser 11 is positioned above the partition plate 9 and includes a first water condensing pot 17 for primarily condensing the steam introduced from the steam pipe 3; the air condenser 10 is located below the partition plate 9 and is provided with a vapor-liquid pipe 12 and a liquid outlet pipe 13 which are sequentially connected, and the liquid outlet pipe 13 is connected with an inlet of a recovery pipe 14 and used for re-condensing and outputting the condensed solvent to a recovery tank 19.

Specifically, a second water condensing pot 20 is installed on the top of the recovery tank 19 for re-condensing the recovered solvent; a recovery pipe joint 15 is arranged on one side of the recovery tank 19, and the recovery pipe joint 15 is connected with a recovery pipe 14; the other side of the recovery tank 19 is provided with a liquid taking tube 21 for taking out the recovered solvent.

Specifically, the space between the raw material heating tank 1 and the steam condenser 8 is divided into an upper part and a lower part by a heat insulation plate or a metal column 22.

Specifically, the side of raw materials heating jar 1 is equipped with inlet pipe joint 6 and discharging pipe joint 7, is used for the feeding respectively and the ejection of compact.

Specifically, a thermometer 4 and a temperature controller 5 are arranged above the raw material heating tank 1 and used for measuring and controlling the temperature in the raw material heating tank 1; a pressure gauge 16 is arranged above the steam condenser 8 and is used for measuring the pressure in the steam condenser 8.

In particular, the distillation recovery apparatus is provided with a separate refrigeration system 18 for providing a cold source.

Specifically, the refrigeration system 18 includes air conditioning refrigeration, cold air refrigeration, and ice block refrigeration.

Specifically, the temperature of the distilled liquid is determined according to the boiling point of the recovered solvent, and the temperature of the distilled liquid during distillation is 2-10 ℃ higher than the boiling point of the solvent.

Specifically, the recovered solvents include: water, methanol, ethanol, acetone, petroleum ether, carbon trichloride and carbon tetrachloride.

Examples

The working process of the distillation recovery equipment is as follows:

as shown in fig. 1, after feeding from a feeding pipe joint 6, a raw material heating tank 1 is heated by a heat source 2, the generated steam rises through a steam pipe 3 and enters a water condenser 11 in a steam condenser 8, after heat energy exchange, a large amount of solvent steam is condensed into liquid, and enters an air condenser 10 through a steam liquid pipe 12 together with uncondensed part of steam to perform secondary heat energy exchange, and the solvent steam is condensed into liquid and enters a recovery tank 19 through a liquid outlet pipe 13; a second water condensing pot 20 installed above the recovery tank 19 condenses a small amount of the entering solvent vapor into a liquid. The whole system runs in a closed state, and is provided with an independent refrigerating system 18 and a temperature control system, wherein the refrigerating mode of the refrigerating system 18 comprises air-conditioning refrigeration, cold air refrigeration and ice block refrigeration, and the temperature control system comprises a thermometer 4, a temperature controller 5 and a pressure gauge 16. In a closed system, the recovery rate of the solvent can be stabilized to be more than 95 percent by regulating and controlling the refrigerating system 18 and the temperature control system.

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

Claims

1. The utility model provides a distillation recovery plant, includes raw materials heating tank (1), heat source (2), steam condenser (8), recovery tank (19), its characterized in that: the raw material heating tank (1) is of a tank body structure and is used for containing raw materials to be distilled and recovered; the heat source (2) is positioned below the raw material heating tank (1) and is used for heating the raw material heating tank (1); the steam condenser (8) is positioned above the raw material heating tank (1) and is used for condensing the evaporated raw material steam; the recovery tank (19) is positioned on one side of the raw material heating tank (1), is connected with the steam condenser (8) through a recovery pipe (14) and is used for recovering the distilled solvent.

2. A distillation recovery apparatus according to claim 1, wherein: a steam pipe (3) is arranged at the position, connected with the steam condenser (8), above the raw material heating tank (1), and heated raw material steam enters the steam condenser (8) through the steam pipe (3); the steam condenser (8) comprises a partition plate (9), an air condenser (10) and a water condenser (11), wherein the partition plate (9) is positioned in the middle of the inside of the steam condenser (8) and is used for separating the air condenser (10) from the water condenser (11); the water condenser (11) is positioned above the partition plate (9) and comprises a first water condensing pot (17) for primarily condensing steam entering from the steam pipe (3); air condenser (10) are located the below of baffle (9), are equipped with vapour liquid pipe (12) and drain pipe (13), and the two connects gradually, and drain pipe (13) link to each other with the entry of recovery tube (14) for condense once more and export recovery tank (19) with the solvent after the condensation.

3. A distillation recovery apparatus according to claim 1, wherein: the top of the recovery tank (19) is provided with a second water condensation pot (20) for re-condensing the recovered solvent; a recovery pipe joint (15) is arranged on one side of the recovery tank (19), and the recovery pipe joint (15) is connected with a recovery pipe (14); the other side of the recovery tank (19) is provided with a liquid taking pipe (21) for taking out the recovered solvent.

4. A distillation recovery apparatus according to claim 1, wherein: the raw material heating tank (1) and the steam condenser (8) are divided into an upper part and a lower part by a heat insulation plate or a metal column (22).

5. A distillation recovery apparatus according to claim 1, wherein: the side of the raw material heating tank (1) is provided with a feeding pipe joint (6) and a discharging pipe joint (7) which are used for feeding and discharging respectively.

6. A distillation recovery apparatus according to claim 1, wherein: a thermometer (4) and a temperature controller (5) are arranged above the raw material heating tank (1) and are used for measuring and controlling the temperature in the raw material heating tank (1); and a pressure gauge (16) is arranged above the steam condenser (8) and is used for measuring the pressure in the steam condenser (8).

7. A distillation recovery apparatus according to claim 1, wherein: the distillation recovery apparatus is provided with a separate refrigeration system (18) for providing a cold source.

8. The distillation recovery apparatus according to claim 7, wherein: the refrigerating system (18) comprises air-conditioning refrigeration, cold air refrigeration and ice block refrigeration.

9. A distillation recovery apparatus according to any one of claims 1 to 8, wherein: the temperature of the distilled liquid is determined according to the boiling point of the recovered solvent, and the temperature of the distilled liquid during distillation is equal to or higher than the boiling point of the solvent by 2-10 ℃.

10. A distillation recovery apparatus according to claim 9, wherein: the recovered solvents include: water, methanol, ethanol, acetone, petroleum ether, carbon trichloride and carbon tetrachloride.