TWI749410B - Device and process for quickly removing solvent from materials - Google Patents

Abstract

A device and process for quickly removing solvent from materials, including: a temporary constant temperature stirring tank is provided with water-based PU, resin or latex as input, heated by a heater to close to the supersaturation temperature and sent to a multi-rod stator single-rotating supergravity rotating bed The solvent is vaporized, and the unvaporized materials with higher boiling points, such as water-based PU, resin or latex, can be returned to the temporary constant temperature tank for the next cycle. After the solvent content of the material is lower than the standard, it must be sent to the mixing tank to adjust the solid content It is convenient for the output of the finished product, and the vaporized solvent is integrated and recovered; the present invention uses a multi-rod stator single-rotating supergravity rotating bed, and uses its external circulation design, which is not easy to condense and the material becomes nano-droplets, has a large contact area and is easy to desorb The solvent in the material can be processed continuously without causing foaming in the temporary constant temperature stirring tank, the processing time is short, the processing volume is large, and the quality and efficiency are effectively improved.

Description

Device and process for quickly removing solvent from materials

The present invention provides a technical field of solvent removal, in particular, it provides a device and process for rapidly removing solvents from materials. The multi-rod stator single-rotating super-gravity rotating bed utilizes its external circulation design to prevent conjunctiva and materials. It is a nano-droplet with a large contact area and continuous processing of solvents in materials that are easy to desorb, and the processing time is short and the processing volume is large, which effectively improves the quality and efficiency.

According to the traditional materials such as water-based PU, resin or latex, it is necessary to add solvents to aid solubility and reaction. However, because solvents are harmful to human health, all countries have set strict standards for the permitted content of solvents. , Resin or latex products are sold to these countries, and the solvent content in the products must meet the regulations. Therefore, effective removal of the solvent content in the material is the last process that must be completed in the final product processing plant for material products such as water-based PU, resin or latex products.

The traditional method of removing solvent from materials is solvent desorption in evaporator, which adopts batch-type tank heating and stirring flash evaporation desorption. This process is easy to cause foaming in the tank, conjunctiva, and cleaning is not easy. It not only has a small amount of processing, but also Take off It takes a long time to attach, the residual amount of solvent is high, and the conjunctiva is serious and difficult to handle, the solvent cannot be effectively recovered, the cleaning fluid cannot be recovered, and the product quality after desorption is not good. In addition, the solvent separation efficiency is low, the heat energy cannot be effectively transferred to the solvent to be vaporized, the vaporized molecules cannot be effectively carried away by the air flow, the processing time is very long, and the residual solvent in the material cannot be reduced to a very low level.

Therefore, how to develop an innovative structure with more ideal and practicality in response to the problems of the above-mentioned conventional structure is what consumers are eagerly awaiting, and it is also the goal and direction that the relevant industry must strive to develop and break through.

In view of this, the inventor has been engaged in the manufacturing, development and design of related products for many years. Aiming at the above goals, after detailed design and careful evaluation, he finally obtained a practical invention.

The main purpose of the present invention is to provide a device and process for quickly removing solvents from materials. With a multi-rod stator single-rotating supergravity rotating bed, the external circulation design is used to prevent conjunctiva and allow the materials to become nano-droplets resulting in a specific contact area. Large, easy to desorb, continuous processing, short processing time, large processing volume, low solvent content in the material product, and effective improvement of quality and efficiency.

In order to achieve the above objective, the present invention provides a device and process for quickly removing solvent from materials, which includes: a temporary constant temperature stirring tank to provide water-based PU, resin or latex materials and products, heated to close to supersaturation by a heater At the temperature, it is sent to the multi-rod stator single-rotating supergravity rotating bed for melting The solvent is vaporized. After vaporization, the separated solvent is condensed into a liquid and then stored. The material products of water-based PU, resin or latex that are not vaporized can be returned to the temporary constant temperature stirring tank for the next cycle until the solvent content in the material is low. After the European Union or other national standards, it must be sent to the mixing tank to adjust the solid content, so as to facilitate the output of the finished product, and the vaporized solvent must be integrated and recovered; the present invention uses a multi-rod stator single-rotating super-gravity rotating bed with its external circulation design, It is not easy to conjunctival, the material becomes nano droplets, the contact area is large, it is easy to desorb, and can be processed continuously, and the processing time is short, the processing volume is large, and the quality and efficiency are effectively improved.

Regarding the technology, means and effects adopted by the present invention, a preferred embodiment is given in conjunction with a detailed description of the drawings. It is believed that the above-mentioned purpose, structure and features of the present invention should be understood in depth and concretely. .

10: Temporary storage constant temperature stirring tank

11: Stirring device

12: Ninth pipeline

13: Steam supply equipment

14: High pressure dry air

15: Feeding

20: The first heater

21: The first pipeline

22: Pump

23: second pipeline

231: Sampling Port

24: The third pipeline

241: The Eighth Pipeline

30: Multi-rod stator single-rotating super-gravity rotating bed

31: Stator device

32: Rotor device

321: Updraft fan

33: Powerplant

34: The fourth pipeline

35: Fifth pipeline

36: Condenser

37: The sixth pipeline

38: Solvent receiving tank

40: Blending tank

41: The seventh pipeline

42: Export of finished products

50: Pure water supply device

51: Tenth Pipeline

52: second heater

The first figure is a process flow chart of an embodiment of the present invention.

The second figure is a plane sectional view of a multi-rod stator single-rotating supergravity rotating bed according to an embodiment of the present invention.

The present invention provides a designer of a device and process for quickly removing solvents from materials.

In order to enable your reviewer to have a further understanding and understanding of the purpose, features and effects of the present invention, I would like to cooperate with the implementation methods and diagrams. Detailed description is as follows: referring to the first to second figures, the present invention provides a device for quickly removing solvents from materials, which includes: a temporary constant temperature stirring tank 10, the aforementioned temporary constant temperature stirring tank 10 must provide aqueous PU , Resin or latex material product input 15 and keep the internal temperature at a constant temperature, the aforementioned temporary constant temperature stirring tank 10 is equipped with a stirring device 11, through the aforementioned stirring device 11 to maintain a uniform composition of the material inside the temporary constant temperature stirring tank 10 Dispersion state; a first heater 20, the first heater 20 is connected to a pump 22 by a second pipe 23, and then the pump 22 is connected to the temporary constant temperature stirring tank 10 by a first pipe 21 ; A multi-bar stator single-rotating high-gravity rotating bed 30, the aforementioned multi-bar stator single-rotating high-gravity rotating bed 30 includes a stator device 31 and a rotor device 32, the aforementioned rotor device 32 is connected to a power device 33, the aforementioned power device 33 transmission The aforementioned rotor device 32 rotates at a high speed, the aforementioned first heater 20 is connected to the aforementioned multi-rod stator single-rotating high-gravity rotary bed 30 through a third pipeline 24, and the aforementioned multiple-rod stator single-rotating supergravity rotary bed 30 is connected to a fourth pipeline 34 is connected to the aforementioned temporary constant temperature stirring tank 10 to form an external circulation. The aforementioned multi-rod stator single-rotating supergravity rotating bed 30 is connected to a condenser 36 through a fifth pipe 35, and the aforementioned condenser 36 is connected to a sixth pipe 37 Connect a solvent receiving tank 38.

In the device for quickly removing solvent from materials, a sampling port 231 is connected to the second pipeline 23, and a sampling port 231 is connected to the second pipeline 23. A seventh pipeline 41 is connected to a blending tank 40 for blending the solid content, and the foregoing blending tank 40 is provided with a finished product outlet 42.

In the device for quickly removing solvents from materials, the third pipeline 24 is connected with an eighth pipeline 241 connected to the temporary constant temperature stirring tank 10, and it can maintain 70% of the original total flow before splitting. Through the aforementioned third pipeline 24, and 30% of the original total flow before the split flows through the aforementioned eighth pipeline 241.

In the device for quickly removing solvents from materials, a ninth pipeline 12 is connected to the side of the temporary constant temperature stirring tank 10 with a steam supply device 13 and a high-pressure dry air supply device 14 respectively for cleaning and expelling the foregoing Temporarily store the moisture inside the constant temperature stirring tank 10.

In the device for quickly removing solvent from materials, the fifth pipe 35 is connected to a tenth pipe 51, the tenth pipe 51 is connected to a second heater 52, and the second heater 52 is connected to pure water. Supply device 50.

In the device for quickly removing solvent from materials, an updraft fan 321 is provided at the top of the center of the rotor device 32 of the multi-bar stator single-rotating supergravity rotating bed 30.

In the device for quickly removing solvent from materials, the aforementioned first heater 20 can be a spiral heater that is not easy to condense and easy to clean.

Referring to the first to second figures, the present invention provides a process for quickly removing solvents from materials, which includes: feeding solvent-containing water-based PU, resin or latex materials 15 to a temporary constant temperature stirring tank 10 , And maintain the temperature of the aforementioned temporary constant temperature stirring tank 10 and continue stirring; start a pump 22 to extract solvent-containing water-based PU, resin or latex material products, with a flow rate of 15-20m ³ /h or more, passing through a first heater 20 Raise the temperature of the solvent-containing water-based PU, resin or latex material product close to the saturated vaporization temperature; the solvent-containing water-based PU, resin or latex material product close to the saturated vaporization temperature enters a multi-rod stator single-rotating supergravity rotating bed 30 Cut into micron droplets and the solvent can be vaporized into a gas solvent; gas-liquid separation, the gas solvent is condensed into a liquid solvent by a condenser 36, and received by a solvent receiving tank 38; water-based PU, resin or latex material products are returned to the aforementioned temporary constant temperature The stirring tank 10 can complete a cycle; after two to five cycles, sampling can be obtained at the sampling port 231 for testing. If the solvent content in the material product is lower than the allowable content, the aqueous PU, resin or resin temporarily stored in the constant temperature stirring tank 10 The latex material product is sent to a blending tank 40. Because the solvent will also entrain part of the water to be vaporized during vaporization, it also causes the solid content of the material to increase. Therefore, water must be added to adjust the solid content ratio of the product, and it must be exported from a finished product. 42 output finished products.

The described process for the rapid removal of solvents from materials, in which the aforementioned temporary constant temperature stirring tank 10 and the aforementioned multi-rod stator single-rotating supergravity rotating bed 30 are completed After forming a solvent removal process, a cleaning step must be added, and the cleaning water can be recycled to facilitate reuse in the next solvent removal process.

In the process of rapidly removing the solvent from the material, after the liquid solvent is received, the supplementary phase must be mixed and heated and pure water enters the multi-rod stator single-rotating supergravity rotating bed 30.

It can be seen from the above that the device and manufacturing process for the rapid removal of solvents from materials of the present invention are indeed the first in the industry and meet the novelty requirements of invention patents, and its comprehensive and innovative design meets the progressive requirements of invention patents. The multi-rod stator single-rotating super-gravity rotating bed, with its external circulation design, is not easy to condense and the material becomes nano-droplets, has a large contact area, is easy to desorb, and can be processed continuously, and the processing time is short and the processing volume is large. , The material product contains low solvent content, which can effectively improve the quality and efficiency.

The foregoing is a detailed description of the preferred embodiments of the present invention and the technical features of the present invention; however, those skilled in the art should make changes and modifications to the present invention without departing from the spirit and principle of the present invention. Such changes and modifications shall be covered in the scope defined by the scope of the following patent applications.

In summary, the present invention provides a device and process for quickly removing solvents from materials. It has indeed achieved all the objectives of the present invention. In addition, the spatial pattern of its combined structure has not been seen in similar products, nor has it been disclosed before application. Having complied with the provisions of the Patent Law, Yan filed an application in accordance with the law.

10: Temporary storage constant temperature stirring tank

11: Stirring device

12: Ninth pipeline

13: Steam supply equipment

14: High pressure dry air

15: Feeding

20: The first heater

21: The first pipeline

22: Pump

23: second pipeline

231: Sampling Port

24: The third pipeline

241: The Eighth Pipeline

30: Multi-rod stator single-rotating super-gravity rotating bed

33: Powerplant

34: The fourth pipeline

35: Fifth pipeline

36: Condenser

37: The sixth pipeline

38: Solvent receiving tank

40: Blending tank

41: The seventh pipeline

42: Export of finished products

50: Pure water supply device

51: Tenth Pipeline

52: second heater

Claims (10)

A device for quickly removing solvents from materials, comprising: a temporary constant temperature stirring tank, the temporary constant temperature stirring tank provides feed and maintains the internal temperature at a constant temperature, the temporary constant temperature stirring tank is equipped with a stirring device, by the aforementioned stirring The device maintains the uniformly dispersed state of the internal material composition of the temporary constant temperature stirring tank; a first heater, the first heater is connected to a pump by a second pipeline, and the pump is connected to the aforementioned pump by a first pipeline Temporary constant temperature stirring tank; a multi-bar stator single-rotation high-gravity rotating bed, the aforementioned multi-bar stator single-rotating high-gravity rotating bed includes a stator device and a rotor device, the aforementioned rotor device is connected to a power device, and the aforementioned power device drives the aforementioned rotor The device rotates at high speed. The first heater is connected to the multi-rod stator single-rotating supergravity rotary bed with a third pipeline, and the multi-rod stator single-rotating supergravity rotary bed is connected to the aforementioned temporary constant temperature stirring tank with a fourth pipeline. , Forming an external cycle, the aforementioned multi-rod stator single-rotating supergravity rotating bed is connected to a condenser with a fifth pipeline, and the aforementioned condenser is connected to a solvent receiving tank with a sixth pipeline. The device for quickly removing solvents from materials as described in item 1 of the scope of patent application, wherein a sampling port is connected to the aforementioned second pipeline, and a seventh pipeline is connected to the aforementioned second pipeline to connect to a mixing tank. The tank is provided with a finished product outlet. The material described in item 2 of the scope of patent application can quickly remove the solvent The device, wherein the third pipeline is connected with an eighth pipeline connected to the temporary constant temperature stirring tank, and 70% of the original total flow before the split flow through the third pipeline and the original total flow before the split are maintained Thirty percent of it flows through the aforementioned eighth pipeline. As described in item 3 of the scope of patent application, a device for quickly removing solvents from materials, wherein a ninth pipeline is connected to a steam supply device and a high-pressure dry air supply device on the side of the temporary constant temperature stirring tank for cleaning. And drive away the moisture inside the aforementioned temporary constant temperature stirring tank. The device for quickly removing solvents from materials as described in item 4 of the scope of patent application, wherein the fifth pipeline is connected to a tenth pipeline, the tenth pipeline is connected to a second heater, and the second heater is connected to a Pure water supply device. The device for quickly removing solvents from materials as described in item 5 of the scope of patent application, wherein an updraft fan is provided at the top of the center of the rotor device of the multi-bar stator single-rotating supergravity rotating bed. For the device for quickly removing solvent from materials described in item 6 of the scope of patent application, the first heater mentioned above can be a spiral heater that is not easy to condense and easy to clean. A process for quickly removing solvents from materials. The steps include: feeding water-based PU, resin or latex containing solvents into a temporary constant temperature stirring tank under negative pressure, and maintaining the temperature of the temporary constant temperature stirring tank and Continuous stirring; start a pump to extract solvent-containing water-based PU, resin or latex at a flow rate of 15~20m ³ /h or more. After a first heater, the temperature of the material’s solvent-containing water-based PU, resin or latex is raised to close Saturation vaporization temperature; materials close to the saturation vaporization temperature containing solvent-based water-based PU, resin or latex enter a multi-rod stator single-rotating supergravity rotating bed to be cut into micron droplets and the solvent can be vaporized into a gas solvent; gas-liquid split, vaporized solvent It is condensed into a liquid solvent by a condenser and received by a solvent receiving tank; the water-based PU, resin or latex that is not vaporized is returned to the aforementioned temporary constant temperature stirring tank to complete a cycle; after two to five cycles, it is obtained from Sampling and testing at the sampling port, the solvent content in the detected material is lower than the allowable content, then the water-based PU, resin or latex of the material in the temporary constant temperature stirring tank is sent to a mixing tank, because the solvent will also entrain part of the water and be vaporized during the vaporization , So it also causes the solid content of the material to rise, so water must be added to adjust the solid content ratio of the product, and the finished product must be exported from a finished product export. As described in item 8 of the scope of patent application, the process for rapid removal of solvents from materials, in which the aforementioned temporary constant temperature stirring tank and the aforementioned multi-rod stator single-rotating supergravity rotating bed have to add a cleaning after completing a material removal solvent process Steps, and the cleaning water can be recycled to facilitate the next use of the material after the solvent removal process. For example, the process for the rapid removal of solvents from materials described in item 9 of the scope of patent application, wherein after the aforementioned liquid solvent is received, the solid content ratio must be adjusted to add The hot pure water enters the aforementioned multi-rod stator single-rotating supergravity rotating bed.

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