CN214808502U

CN214808502U - Distillation recovery device

Info

Publication number: CN214808502U
Application number: CN202120583728.7U
Authority: CN
Inventors: 吴礼富; 云守诗; 倪佳斌
Original assignee: Zhejiang Bo'ao New Materials Co ltd
Current assignee: Zhejiang Bo'ao New Materials Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-11-23
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses a distillation recovery unit, including the stills body, including distillation chamber and clamp cover on the stills body, the distillation chamber is connected with the distillation gas pipeline, be connected with circulation heat conduction oil pipe way on the clamp cover, be provided with circulating pump and heat conduction oil heating device on the heat conduction oil pipe way. This kind of distillation recovery unit passes through the conduction oil heating device heating conduction oil to with the hot conduction oil circulation flow through the cover that presss from both sides, carry out the heat transfer with the material in the distillation intracavity, not only reduced the requirement to the cover intensity of pressing from both sides, control conduction oil temperature that moreover can be stable, safer, simple structure need not uninterruptedly discharge the comdenstion water in the cover that presss from both sides, the conduction oil can heat up to about 300 ℃, high boiling solvent recovery ratio is more thorough, the useless residue of danger of emission is less and manufacturing cost has been reduced.

Description

Distillation recovery device

Technical Field

The utility model belongs to the technical field of chemical industry equipment, specifically a distillation recovery unit.

Background

In the traditional steam type distillation, steam is fed into a jacket of a distillation kettle, and the temperature of the jacket is raised to distill a solvent, but the heating temperature in the kettle is controlled by the steam pressure, generally, the temperature is difficult to exceed 150 ℃, condensed water needs to be uninterruptedly discharged to the jacket during heating, and the operation is inconvenient; and because the steam is difficult to maintain at a higher temperature, the solvent with a high boiling point of over 180 ℃ can not be fully recovered, so that a small part of the solvent with the high boiling point is changed into hazardous waste residue, the production cost is higher, and the steam pressure generated by using a vacuum system is too high, so that potential safety hazards can be brought to a jacket.

Disclosure of Invention

The utility model discloses it is not enough to prior art, the utility model provides a distillation recovery device, this kind of distillation recovery device lets in the stills jacket through the conduction oil and heats, it is low to pressing from both sides cover intensity requirement, conduction oil circulating pressure is lower, and is safer, moreover, the steam generator is simple in structure, need not discharge the comdenstion water in the jacket uninterruptedly, need not use vacuum system, environmental protection manufacturing cost reduces, use the conduction oil heating to avoid waste water and waste gas's production, because the conduction oil can heat up to about 300 ℃, high boiling point solvent recovery is more thorough, the danger residue of discharging is less and has reduced manufacturing cost.

In order to solve the technical problem, the utility model discloses a following technical scheme can solve: the utility model provides a distillation recovery unit, includes the stills body, including distillation chamber and clamp cover on the stills body, the distillation chamber is connected with the distillation gas pipeline, be connected with circulation heat conduction oil pipeline on the clamp cover, be provided with circulating pump and heat conduction oil heating device on the circulation heat conduction oil pipeline. This kind of distillation recovery unit passes through the conduction oil heating device heating conduction oil to with the hot conduction oil circulation flow through the cover that presss from both sides, carry out the heat transfer with the material in the distillation intracavity, not only reduced the requirement to the cover intensity of pressing from both sides, control conduction oil temperature that moreover can be stable, safer, simple structure need not uninterruptedly discharge the comdenstion water in the cover that presss from both sides, the conduction oil can heat up to about 300 ℃, high boiling solvent recovery ratio is more thorough, the useless residue of danger of emission is less and manufacturing cost has been reduced.

In the above technical scheme, preferably, the distillation gas outlet pipeline is connected with a separation tower, an outlet of the separation tower is connected with a condenser, a liquid outlet pipeline of the condenser is connected with at least two fraction receiving tanks, and a valve for controlling the flow direction of the fractions is arranged on the liquid outlet pipeline. Adopt this structure can come control to carry out the fraction receiving groove that the fraction was collected to distilling gas outlet pipeline export through the valve, can receive respectively different fractions under different distillation temperature.

In the above technical scheme, preferably, the valve is an electromagnetic valve, a temperature sensor is arranged in the distillation cavity, the temperature sensor is connected with a controller, and the controller is connected with the electromagnetic valve. The structure can measure the temperature in the distillation cavity through the temperature sensor, and the controller controls the opening and closing of the electromagnetic valve, so that the aim of respectively receiving different fractions under different distillation temperatures is fulfilled.

Among the above-mentioned technical scheme, it is preferred, this internal agitator that is provided with of stills, the agitator includes stirring rake, pivot and motor, press from both sides the cover to this internal branch that is provided with that stretches out of stills, a branch pot head is established in the pivot, the pivot the stirring rake and be provided with the intercommunication in the branch the conduction oil passageway of pressing from both sides the cover. Because the heat conduction oil has small pressure bearing, the heat conduction oil can directly pass through a heat conduction oil channel in the stirrer, so that the heat conduction oil can exchange heat with the material in the distillation cavity more quickly.

In the above technical solution, preferably, the jacket is provided with two support rods, and the support rods are located on two sides of the stirring paddle. By adopting the structure, the heat conduction oil can enter from one support rod and exit from the other support rod, and the flow of the heat conduction oil is smoother.

In the above technical scheme, preferably, the inner ring of the sleeve ring is provided with two annular grooves, the annular grooves are internally provided with sealing rings, and the rotating shaft and the opening of the heat conduction oil channel on the supporting rod are located between the two sealing rings. By adopting the structure, the sealing performance of the joint of the lantern ring and the rotating shaft can be improved.

Compared with the prior art, the utility model, following beneficial effect has: this kind of distillation recovery unit passes through the conduction oil heating device heating conduction oil to with the hot conduction oil circulation flow through the cover that presss from both sides, carry out the heat transfer with the material in the distillation intracavity, not only reduced the requirement to the cover intensity of pressing from both sides, control conduction oil temperature that moreover can be stable, safer, simple structure need not uninterruptedly discharge the comdenstion water in the cover that presss from both sides, the conduction oil can heat up to about 300 ℃, high boiling solvent recovery ratio is more thorough, the useless residue of danger of emission is less and manufacturing cost has been reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention.

Fig. 2 is a schematic sectional view of the connection between the support rod and the rotating shaft according to the embodiment of the present invention.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 2, a distillation recovery device comprises a distillation still body 1, the distillation still body 1 comprises a distillation cavity 11 and a jacket 12, the distillation cavity 11 is connected with a distillation gas outlet pipeline 13, the jacket 12 is connected with a circulating heat conduction oil pipeline 2, and the circulating heat conduction oil pipeline 2 is provided with a circulating pump 3 and a heat conduction oil heating device 4. Conduction oil heating device 4 is the electrical heating heat conduction oil furnace in this embodiment, this kind of distillation recovery unit passes through conduction oil heating device 4 heating conduction oil, and with hot conduction oil circulation flow through press from both sides cover 12, carry out the heat transfer with the material in the distillation chamber 11, not only reduced and pressed from both sides cover 12 intensity requirement, and control conduction oil temperature that can be stable, and is safer, moreover, the steam generator is simple in structure, need not discharge the comdenstion water in the cover 12 uninterruptedly, the conduction oil can heat up to about 300 ℃, high boiling point solvent recovery is more thorough, the danger residue of wasting of emission is less and has reduced manufacturing cost.

In this embodiment, the distillation gas outlet pipeline 13 is connected to a separation tower 5, the outlet of the separation tower 5 is connected to a condenser 6, the liquid outlet pipeline 61 of the condenser 6 is connected to at least two fraction receiving tanks 7, and the liquid outlet pipeline 61 is provided with a valve 8 for controlling the flow direction of the fractions. By adopting the structure, the fraction receiving tank for collecting the fractions at the outlet of the distilled gas outlet pipeline can be controlled by the valve 8, and different fractions can be respectively received at different distillation temperatures.

In this embodiment, in order to collect different fractions respectively automatically under different distillation temperatures, valve 8 is a solenoid valve, is provided with temperature sensor 9 in distillation chamber 11, and temperature sensor 9 is connected with controller 10, and controller 10 is connected with the solenoid valve. The temperature sensor 9 can detect the temperature of the materials in the distillation cavity 11, and the controller 10 controls the opening and closing of each electromagnetic valve according to the detected temperature of the temperature sensor 9 to control the communication between one fraction receiving groove 7 and the liquid outlet pipeline 61 of the condenser 6.

In this embodiment, a stirrer 14 is provided in the distillation still body 1, the stirrer 14 includes a stirring paddle 141, a rotating shaft 142 and a motor 143, the jacket 12 extends into the distillation still body 1 and is provided with a supporting rod 15, one end of the supporting rod 15 is provided with a lantern ring 151, the lantern ring 151 is sleeved on the rotating shaft 142, and a heat conduction oil channel 16 communicated with the jacket 12 is provided in the rotating shaft 142, the stirring paddle 141 and the supporting rod 15. Because the pressure bearing of the heat conduction oil is small, the heat conduction oil can directly pass through the heat conduction oil channel 16 in the stirrer 14, so that the heat conduction oil can exchange heat with the materials in the distillation cavity 11 more quickly.

In this embodiment, the jacket 12 is provided with two support rods 15, and the support rods 15 are located at two sides of the stirring paddle 141. By adopting the structure, the heat conduction oil can enter from one support rod 15 to the other support rod 15, and the flow of the heat conduction oil is smoother.

In order to improve the sealing performance of the joint of the collar 151 and the rotating shaft 142, two annular grooves 152 are formed in the inner ring of the collar 151, sealing rings 153 are arranged in the annular grooves 152, and the rotating shaft 142 and the opening of the heat conduction oil channel 16 on the strut 15 are located between the two sealing rings 153.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a distillation recovery unit, includes stills body (1), including distillation chamber (11) and jacket (12) on stills body (1), distillation chamber (11) are connected with distillation gas pipeline (13), its characterized in that: be connected with circulation heat conduction oil pipe way (2) on pressing from both sides cover (12), be provided with circulating pump (3) and conduction oil heating device (4) on circulation heat conduction oil pipe way (2), be provided with agitator (14) in stills body (1), agitator (14) are including stirring rake (141), pivot (142) and motor (143), press from both sides cover (12) to it is provided with branch (15) to stretch out in stills body (1), branch (15) one end is provided with the lantern ring (151), the lantern ring (151) cover is established in pivot (142), pivot (142) stirring rake (141) and be provided with the intercommunication in branch (15) the conduction oil passageway (16) of pressing from both sides cover (12).

2. A distillation recovery device as claimed in claim 1, wherein: the distillation gas pipeline (13) is connected with a separation tower (5), an outlet of the separation tower (5) is connected with a condenser (6), a liquid outlet pipeline (61) of the condenser (6) is at least connected with two fraction receiving grooves (7), and a valve (8) for controlling the flow direction of fractions is arranged on the liquid outlet pipeline (61).

3. A distillation recovery device as claimed in claim 2, wherein: the valve (8) is an electromagnetic valve, a temperature sensor (9) is arranged in the distillation cavity (11), the temperature sensor (9) is connected with a controller (10), and the controller (10) is connected with the electromagnetic valve.

4. A distillation recovery device as claimed in claim 1, wherein: two supporting rods (15) are arranged on the jacket (12), and the supporting rods (15) are located on two sides of the stirring paddle (141).

5. A distillation recovery device as claimed in claim 1, wherein: the inner ring of the lantern ring (151) is provided with two annular grooves (152), sealing rings (153) are arranged in the annular grooves (152), and the rotating shaft (142) and the supporting rod (15) are provided with openings of the heat conduction oil channel (16) which are positioned between the two sealing rings (153).