CN210612918U

CN210612918U - Distillation recovery plant

Info

Publication number: CN210612918U
Application number: CN201921286379.1U
Authority: CN
Inventors: 陈浩; 邹愚; 陈广源
Original assignee: Jiangmen Zuodun Environmental Protection Technology Co ltd
Current assignee: Jiangmen Zuodun Environmental Protection Technology Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-05-26
Anticipated expiration: 2029-08-08

Abstract

The utility model relates to a distillation recovery device, which comprises a distillation still, a condenser pipe and a recovery tank which are connected in sequence, wherein the recovery tank is connected with a vacuum generator, a heat-conducting oil interlayer and a heat-conducting ring layer communicated with the heat-conducting oil interlayer are arranged on the distillation still, an electric heating rod is arranged on the heat-conducting oil interlayer, a driving motor and a stirring shaft provided with a stirring paddle blade are arranged on the distillation still, a through hole for the stirring shaft to pass through is arranged in the middle of the heat-conducting ring layer, and a liquid outlet is arranged at the bottom of the; the condenser pipe comprises an inner pipe and an outer pipe, a closed condensate flowing cavity is formed between the outer wall of the inner pipe and the inner wall of the outer pipe, a coolant outlet and a coolant inlet which are communicated with the condensate flowing cavity are respectively arranged at the head end and the tail end of the outer pipe, and a plurality of radiating blades which are communicated with the condensate flowing cavity are arranged on the periphery of the outer pipe. The utility model discloses can reduce distillation temperature, and the distillated liquid is heated evenly, and distillation effect is good, improves the condensate radiating rate, and the VOCs steam condensation is effectual.

Description

Distillation recovery plant

Technical Field

The utility model relates to a distillation plant technical field, more specifically say, relate to a distillation recovery plant.

Background

Waste gas and waste residue generated in industrial production can be discharged only by purification treatment so as to reduce environmental pollution, and after the waste gas and waste residue containing Volatile Organic Compounds (VOCs) are absorbed by general absorption liquid, the VOCs and the absorption liquid are separated by distilling the absorption liquid after working so as to realize reutilization; however, the required distillation temperature is high, the high temperature resistance requirement of the material of the equipment is high, the manufacturing cost of the equipment is increased, the distillation speed is low, and the distillation effect is influenced because the existing distillation equipment is not uniformly heated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem that a distillation recovery plant is provided, can reduce distillation temperature, and the distillated liquid is heated evenly, and distillation effect is good, improves the condensate radiating rate, and the VOCs steam condensation is effectual.

The utility model provides a distillation recovery device, which comprises a distillation still, a condenser pipe, a recovery tank and a vacuum generator, wherein the steam outlet of the distillation still is connected with the inlet of the condenser pipe, the outlet of the condenser pipe is connected with the recovery tank, and the vacuum generator is connected with the recovery tank; a heat-conducting oil interlayer is arranged on the peripheral wall of the distillation kettle, a plurality of heat-conducting ring layers communicated with the heat-conducting oil interlayer are arranged in an inner cavity of the distillation kettle, heat-conducting oil is filled in the heat-conducting oil interlayer and the heat-conducting ring layers, an electric heating rod is arranged on the heat-conducting oil interlayer, a driving motor and a stirring shaft provided with stirring blades are arranged on the distillation kettle, the stirring shaft is connected with an output shaft of the driving motor, a through hole through which the stirring shaft can penetrate is formed in the middle of the heat-conducting ring layers, and a liquid outlet is formed in the bottom of the; the condenser pipe comprises an inner pipe and an outer pipe, a closed condensate flowing cavity is formed between the outer wall of the inner pipe and the inner wall of the outer pipe, a coolant outlet and a coolant inlet which are communicated with the condensate flowing cavity are respectively formed in the head end and the tail end of the outer pipe, a plurality of radiating blades which are communicated with the condensate flowing cavity are arranged on the periphery of the outer pipe, and the radiating blades are obliquely arranged on the outer pipe.

As the preferred proposal of the utility model, a plurality of heat conducting ring layers are arranged in the inner cavity of the distillation still along the length direction.

As an optimized scheme of the utility model, the heat conduction ring layer is equipped with outer heat conduction ring and interior heat conduction ring, the middle part of interior heat conduction ring is equipped with and supplies the through-hole that the (mixing) shaft passed.

As the preferred scheme of the utility model, the condenser pipe is snakelike structure.

As the preferred scheme of the utility model, the inner tube is the screwed pipe, the inner wall and the outer wall of inner tube all are equipped with helicitic texture.

As the utility model discloses a preferred scheme still includes the condensation fan, the air outlet of condensation fan is just right the condenser pipe.

As the preferred proposal of the utility model, the periphery of the distillation kettle is provided with a heat preservation layer.

As the preferable proposal of the utility model, a barometer and a first thermometer are arranged in the inner cavity of the distillation kettle.

As the preferred proposal of the utility model, a second thermometer is arranged on the condensation pipe.

As an optimized scheme of the utility model, the last switching-over valve that is equipped with of vacuum generator, be equipped with the drain pipe on the recovery jar and rinse the delivery pipe, the feed liquor end of drain pipe is located the inner chamber bottom of recovery jar, the drain end of drain pipe is located the top of recovery jar, it is in to rinse the delivery pipe setting the bottom of recovery jar.

Implement the utility model discloses a distillation recovery plant compares with prior art, has following beneficial effect:

the utility model reduces the pressure and distills the absorption liquid absorbed with VOCs in the distillation still, and adjusts the vacuum degree in the distillation still and the recovery tank through the vacuum generator, so as to reduce the boiling point of VOCs, reduce the distillation temperature, realize the vaporization of VOCs and the condensation in the condenser pipe, and recover VOCs in the recovery tank; the heat-conducting ring layer is positioned in the inner cavity of the distillation kettle, so that the whole absorption liquid of the distillation kettle can be uniformly heated, the absorption liquid can be fully contacted with the heat-conducting ring layer and the heat-conducting oil interlayer by stirring through the stirring shaft, and the absorption liquid is further uniformly heated; the radiating blades on the outer pipe can increase the radiating area of the outer pipe, improve the radiating efficiency of the condensate and ensure the condensation effect of VOCs.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings of the embodiments will be briefly described below.

FIG. 1 is a schematic structural diagram of a distillation recovery apparatus provided by the present invention;

FIG. 2 is a schematic structural view of a thermally conductive ring layer;

wherein, 1 is a distillation kettle; 11 is a heat conducting oil interlayer; 12 is a heat conducting ring layer; 121 is an outer heat conducting ring; 122 is an inner heat conducting ring; 123 is a through hole; 13 is an electric heating rod; 14 is a driving motor; 15 is a stirring shaft; 16 is a heat-insulating layer; 2 is a condenser pipe; 21 is a radiating fin; 3 is a recovery tank; 31 is a liquid outlet pipe; 32 is a cleaning discharge pipe; 4 is a vacuum generator; and 5, a condensing fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1 and fig. 2, the preferred embodiment of the present invention includes a distillation still 1, a condenser pipe 2, a recovery tank 3 and a vacuum generator 4, wherein a steam outlet at the top of the distillation still 1 is connected to an inlet of the condenser pipe 2, a switch valve is disposed at a steam outlet of the distillation still 1, an outlet of the condenser pipe 2 is connected to the recovery tank 3, the vacuum generator 4 is connected to the recovery tank 3, a heat-conducting oil interlayer 11 is disposed on a circumferential wall of the distillation still 1, a plurality of heat-conducting ring layers 12 communicated with the heat-conducting oil interlayer 11 are disposed in an inner cavity of the distillation still 1, the heat-conducting oil interlayer 11 and the heat-conducting ring layers 12 are filled with heat-conducting oil, an electric heating rod 13 is disposed on the heat-conducting oil interlayer 11, a driving motor 14 and a stirring shaft 15 provided with stirring blades are disposed on the distillation still 1, and the stirring shaft 15 is connected to an output shaft of, a through hole 123 for the stirring shaft 15 to pass through is formed in the middle of the heat conducting ring layer 12, and a liquid outlet is formed in the bottom of the distillation kettle 1; the condenser pipe 2 comprises an inner pipe and an outer pipe, a closed condensate flowing cavity is formed between the outer wall of the inner pipe and the inner wall of the outer pipe, a coolant outlet and a coolant inlet which are communicated with the condensate flowing cavity are respectively formed in the head end and the tail end of the outer pipe, the head end of the outer pipe is located at one end, provided with the inlet, of the condenser pipe 2, the tail end of the outer pipe is located at one end, provided with the outlet, of the condenser pipe 2, a plurality of radiating blades 21 which are communicated with the condensate flowing cavity are arranged on the periphery of the outer pipe, and the radiating blades 21 are obliquely arranged on the outer pipe; wherein the vacuum generator 4 is preferably a jet type vacuum generator 4.

Therefore, the absorption liquid absorbed with VOCs in the utility model is decompressed and distilled in the distillation still 1, and the vacuum generator 4 is used for adjusting the vacuum degree in the distillation still 1 and the recovery tank 3, so that the boiling point of the VOCs can be reduced, the VOCs is vaporized and enters the condensation pipe 2 for condensation, and the VOCs is recovered in the recovery tank 3; the heat-conducting ring layer 12 is positioned in the inner cavity of the distillation kettle 1, so that the whole absorption liquid of the distillation kettle 1 can be uniformly heated, and the absorption liquid can be fully contacted with the heat-conducting ring layer 12 and the heat-conducting oil interlayer 11 by stirring through the stirring shaft 15, so that the absorption liquid is further uniformly heated; the radiating blades 21 on the outer pipe can increase the radiating area of the outer pipe, improve the radiating efficiency of the condensate and ensure the condensation effect of VOCs.

Illustratively, a plurality of heat-conducting ring layers 12 are arranged in the inner cavity of the distillation still 1 along the length direction thereof, so as to ensure that the temperatures of the absorption liquids of the upper and lower layers in the distillation still 1 are kept consistent, the heat-conducting ring layers 12 are provided with outer heat-conducting rings 121 and inner heat-conducting rings 122, the middle part of the inner heat-conducting ring 122 is provided with a through hole 123 through which the stirring shaft 15 can pass, the structure of the heat-conducting ring layers 12 can ensure that the absorption liquids flow smoothly, the absorption liquids are heated more uniformly, and the stirring shaft 15 does not interfere with the heat-conducting ring layers 12 in the stirring process.

Illustratively, the condensation pipe 2 is of a serpentine structure, so that the path of the VOCs flowing through is prolonged, and the condensation effect of the VOCs is improved.

Exemplarily, the inner tube is the screwed pipe, inner wall and outer wall of inner tube all are equipped with the helicitic texture, improve the area of contact of inner tube and condensate, improve the condensation effect.

Exemplarily, the distillation recovery device further comprises a condensing fan 5, an air outlet of the condensing fan 5 is opposite to the condensing pipe 2, and the condensing fan 5 can take away heat of the condensing pipe 2.

Illustratively, the periphery of the distillation still 1 is provided with the heat preservation layer 16, so that heat loss in the distillation still 1 is avoided, and energy consumption is saved.

Illustratively, a barometer and a first thermometer are arranged in the inner cavity of the distillation still 1, and the barometer and the first thermometer can display the air pressure and the temperature in the distillation still 1 so as to better regulate and control the air pressure through the vacuum generator 4 and adjust the heating temperature through the electric heating rod 13; and a second thermometer is arranged on the condensation pipe 2, so that whether the temperature of the condensate meets the requirement or not can be displayed, and the gaseous VOCs are ensured to be condensed into liquid.

Exemplarily, be equipped with drain pipe 31 and washing delivery pipe 32 on recovery tank 3, the inlet end of drain pipe 31 is located the inner chamber bottom of recovery tank 3, the outlet end of drain pipe 31 is located the top of recovery tank 3, it sets up in the bottom of recovery tank 3 to wash delivery pipe 32, be equipped with the switching-over valve on vacuum generator 4, vacuum generator 4 fills gas in to recovery tank 3 through the switching-over valve in order to pressurize recovery tank 3, makes the VOCs absorption liquid in the recovery tank 3 discharge from drain pipe 31, it is used for discharging the waste residue and washs recovery tank 3 to wash delivery pipe 32.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, therefore, the invention is not limited thereto.

Claims

1. The distillation recovery equipment is characterized by comprising a distillation still, a condensation pipe, a recovery tank and a vacuum generator, wherein a steam outlet of the distillation still is connected with an inlet of the condensation pipe, an outlet of the condensation pipe is connected with the recovery tank, and the vacuum generator is connected with the recovery tank; a heat-conducting oil interlayer is arranged on the peripheral wall of the distillation kettle, a plurality of heat-conducting ring layers communicated with the heat-conducting oil interlayer are arranged in an inner cavity of the distillation kettle, heat-conducting oil is filled in the heat-conducting oil interlayer and the heat-conducting ring layers, an electric heating rod is arranged on the heat-conducting oil interlayer, a driving motor and a stirring shaft provided with stirring blades are arranged on the distillation kettle, the stirring shaft is connected with an output shaft of the driving motor, a through hole through which the stirring shaft can penetrate is formed in the middle of the heat-conducting ring layers, and a liquid outlet is formed in the bottom of the; the condenser pipe comprises an inner pipe and an outer pipe, a closed condensate flowing cavity is formed between the outer wall of the inner pipe and the inner wall of the outer pipe, a coolant outlet and a coolant inlet which are communicated with the condensate flowing cavity are respectively formed in the head end and the tail end of the outer pipe, a plurality of radiating blades which are communicated with the condensate flowing cavity are arranged on the periphery of the outer pipe, and the radiating blades are obliquely arranged on the outer pipe.

2. The distillation recovery apparatus of claim 1, wherein a plurality of said heat conductive ring layers are disposed in said still pot interior along the length thereof.

3. The distillation recovery apparatus according to claim 1, wherein the heat conducting ring layer is provided with an outer heat conducting ring and an inner heat conducting ring, and a through hole for the stirring shaft to pass through is formed in the middle of the inner heat conducting ring.

4. The distillation recovery apparatus of claim 1, wherein the condenser tube has a serpentine configuration.

5. The distillation recovery apparatus according to claim 1, wherein the inner tube is a threaded tube, and both the inner wall and the outer wall of the inner tube are provided with a thread structure.

6. The distillation recovery apparatus of claim 1, further comprising a condensing fan, wherein an air outlet of the condensing fan faces the condensing pipe.

7. The distillation recovery apparatus according to claim 1, wherein the distillation still is provided with an insulating layer on the outer periphery thereof.

8. The distillation recovery apparatus of claim 1, wherein a pressure gauge and a first temperature gauge are disposed within the interior chamber of the still pot.

9. The distillation recovery apparatus according to claim 1, wherein a second thermometer is provided on the condensation pipe.

10. The distillation recovery apparatus according to claim 1, wherein the vacuum generator is provided with a reversing valve, the recovery tank is provided with a liquid outlet pipe and a cleaning discharge pipe, the liquid inlet end of the liquid outlet pipe is located at the bottom of the inner cavity of the recovery tank, the liquid outlet end of the liquid outlet pipe is located at the top of the recovery tank, and the cleaning discharge pipe is arranged at the bottom of the recovery tank.