Low-temperature concentration equipment for PVC (polyvinyl chloride) treating agent

Abstract

The utility model discloses PVC (polyvinyl chloride) treating agent low-temperature concentration equipment which comprises an evaporation tank, the upper end side of the evaporation tank is fixedly communicated with a feeding pipe used for discharging a PVC treating agent into the evaporation tank, an evaporation pipe is fixedly mounted in the middle of the upper end of the evaporation tank, and the outer end of the evaporation pipe is fixedly communicated with an exhaust fan. The side end of the exhaust fan is fixedly communicated with a condenser through a pipeline, the bottom of the condenser is fixedly communicated with a collecting tank, the front side of the upper end of the evaporating tank is fixedly communicated with a vacuum pipe, and the side end of the bottom of the evaporating tank is fixedly communicated with a discharging pipe. A refrigeration cavity is fixedly installed on the outer curved surface of the lower end of the evaporation tank, the outer sides of the upper end and the lower end of the refrigeration cavity fixedly communicate with a refrigeration liquid inlet pipe and a refrigeration liquid outlet pipe correspondingly, a stirring motor is fixedly installed on the rear side of the upper end of the evaporation tank, and a stirring shaft is fixedly installed on a transmission shaft part of the lower end of the stirring motor. According to the utility model, the concentration efficiency is further improved while the concentration of a PVC treating agent solution is realized.

Description

Technical Field

[0001] This utility model relates to the field of PVC treatment agent production technology, specifically to a low-temperature concentration device for PVC treatment agents. Background Technology

[0002] PVC (polyvinyl chloride) treatment agents are chemical additives specifically designed to treat PVC materials. They are typically composed of a carefully formulated blend of various chemical components that react specifically with PVC to improve its properties. PVC treatment agents have multiple functions, primarily including the following:

[0003] Improved Adhesion: PVC treatment agents can alter the polarity and wettability of PVC surfaces, making them easier to bond with other materials, such as improving the adhesion of PVC to inks and coatings. Enhanced Bond Strength: During the bonding process of PVC materials, the use of PVC treatment agents can improve their surface tack, effectively enhancing bond strength and solving the problem of weak adhesion caused by the low surface activity of PVC materials. Imparting Special Functions: By adding specific functional additives, PVC treatment agents can endow PVC materials with special functions such as flame retardancy, antistatic properties, and antibacterial properties to meet the needs of different fields. Lubrication and Dispersion: During the processing of PVC materials, treatment agents can act as lubricants and dispersants, reducing frictional heat between resin particles and molten polymer molecules, preventing plastic from adhering to metal processing equipment, and making the processing smoother. Plasticizing Effect: Some PVC treatment agents also have a plasticizing effect, weakening the van der Waals forces between PVC molecules, increasing the activity of molecular chains, and further enhancing the plasticity of the polymer. Improved Product Quality: By improving the surface properties and processing performance of PVC materials, PVC treatment agents help produce higher quality products.

[0004] In modern industrial production, PVC treatment agents are widely used in various fields, such as construction, packaging, and electronics. However, during the production and use of PVC treatment agents, concentration is often required to improve their purity and efficiency. Traditional concentration equipment is often energy-intensive and can easily damage the active ingredients of the material. Utility Model Content

[0005] The purpose of this invention is to provide a low-temperature concentration device for PVC treatment agents, in order to solve the problem mentioned in the background art that PVC treatment agents often need to be concentrated during production and use to improve their purity and efficiency. Traditional concentration equipment often has high energy consumption and is prone to damaging the active ingredients of the material.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes an evaporator, with a feed pipe fixedly connected to the upper side of the evaporator for discharging PVC treatment agent into the evaporator; an evaporator pipe fixedly installed in the middle of the upper end of the evaporator; an exhaust fan fixedly connected to the outer end of the evaporator pipe; a condenser fixedly connected to the side of the exhaust fan via a pipe; a collection tank fixedly connected to the bottom of the condenser; a vacuum tube fixedly connected to the front of the upper end of the evaporator; and a discharge pipe fixedly connected to the bottom side of the evaporator.

[0007] A refrigeration chamber is fixedly installed on the outer curved surface of the lower end of the evaporator. A refrigeration inlet pipe and a refrigeration outlet pipe are fixedly connected to the outer sides of the upper and lower ends of the refrigeration chamber, respectively. A stirring motor is fixedly installed on the rear side of the upper end of the evaporator. A stirring shaft is fixedly installed on the transmission shaft part of the lower end of the stirring motor. A stirring paddle is fixedly installed on the outer curved surface of the lower end of the stirring shaft.

[0008] Preferably, a pressure sensor and a temperature sensor are fixedly installed inside the evaporator.

[0009] Preferably, the exhaust fan is fixedly installed at the upper end of the evaporator, and a recovery pipe is fixedly connected to the bottom of the collection tank.

[0010] Preferably, the vacuum tube is connected to an external vacuum pump via a connecting pipe, and the feed pipe, evaporation pipe, recovery pipe, vacuum tube, and discharge pipe are each equipped with a switch valve.

[0011] Preferably, an insulation cover is bonded to the outer end of the refrigeration chamber, and the refrigeration inlet pipe and refrigeration outlet pipe are connected to an external cooling water pipe through a circulation pump.

[0012] Preferably, the upper end of the stirring shaft is rotatably connected to the rear side of the upper end of the evaporator via a rotating shaft.

[0013] Preferably, there are several stirring paddles, which are symmetrically distributed with alternating patterns on the outer curved surface of the lower end of the stirring shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] When the PVC treatment agent is discharged into the evaporator, cooling water from the external cooling water pipe is discharged into the refrigeration chamber through the refrigeration inlet pipe. This allows the cooling water and the refrigeration chamber to circulate and cool the PVC treatment agent inside the evaporator. Simultaneously, the stirring motor is activated, which drives the stirring paddle to rotate via the stirring shaft. The rotation of the stirring paddle agitates and flows the PVC treatment agent inside the evaporator, improving the cooling efficiency of the PVC treatment agent. When the PVC treatment agent is cooled, its temperature is lowered, causing the solvent in the PVC treatment agent to drop below its saturated vapor pressure, promoting low-temperature evaporation of the PVC treatment agent. This allows the solvent in the PVC treatment agent solution to escape through low-temperature evaporation, thereby achieving the purpose of concentration.

[0016] This invention also features a vacuum system that, when the external vacuum pump is activated, creates a vacuum inside the evaporator via a vacuum tube. This vacuum environment further reduces the evaporation temperature of the PVC treatment agent, thereby increasing its concentration rate. Simultaneously, during low-temperature evaporation of the PVC treatment agent, a blower is activated to expel the low-temperature vapor from the PVC treatment agent into the condenser. The condenser condenses the vapor and collects it in a collection tank. The concentrated PVC treatment agent is then discharged from the evaporator through a discharge pipe. This process effectively concentrates the PVC treatment agent solution while simultaneously improving concentration efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a low-temperature concentration device for PVC treatment agents according to this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall structure of a low-temperature concentration device for PVC treatment agents according to this utility model. Figure 2 ;

[0019] Figure 3 This is a cross-sectional schematic diagram of the overall structure of a low-temperature concentration device for PVC treatment agents according to this utility model.

[0020] In the diagram: 1. Evaporator; 2. Feed pipe; 3. Evaporator tube; 4. Agitator; 5. Exhaust fan; 6. Condenser; 7. Collection tank; 8. Recovery pipe; 9. Vacuum tube; 10. Discharge pipe; 11. Refrigeration chamber; 12. Refrigeration liquid inlet pipe; 13. Refrigeration liquid outlet pipe; 14. Agitator motor; 15. Agitator shaft. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution for a low-temperature concentration device for PVC treatment agent: it includes an evaporator 1, in which a pressure sensor and a temperature sensor are fixedly installed respectively. A feed pipe 2 for discharging PVC treatment agent into the evaporator 1 is fixedly connected to the upper side of the evaporator 1. An evaporator pipe 3 is fixedly installed in the middle of the upper end of the evaporator 1. An exhaust fan 5 is fixedly connected to the outer end of the evaporator pipe 3 and is fixedly installed at the upper end of the evaporator 1. A condenser 6 is fixedly connected to the side end of the exhaust fan 5 through a pipe, so that the evaporated gas of the PVC treatment agent is condensed and recovered through the condenser 6. A collection tank 7 is fixedly connected to the bottom of the condenser 6. A recovery pipe 8 is fixedly connected to the bottom of the collection tank 7. A vacuum pipe 9 is fixedly connected to the front side of the upper end of the evaporator 1 and is connected to an external vacuum pump through a connecting pipe. A discharge pipe 10 is fixedly connected to the bottom side of the evaporator 1. Switch valves are installed inside the feed pipe 2, evaporator pipe 3, recovery pipe 8, vacuum pipe 9 and discharge pipe 10 respectively.

[0023] A refrigeration chamber 11 is fixedly installed on the outer curved surface of the lower end of the evaporator 1, and an insulation cover is bonded to the outer end of the refrigeration chamber 11. A refrigeration inlet pipe 12 and a refrigeration outlet pipe 13 are fixedly connected to the outer sides of the upper and lower ends of the refrigeration chamber 11, respectively. The refrigeration inlet pipe 12 and the refrigeration outlet pipe 13 are connected to an external cooling water pipe through a circulation pump. A stirring motor 14 is fixedly installed on the rear side of the upper end of the evaporator 1. A stirring shaft 15 is fixedly installed on the drive shaft part of the lower end of the stirring motor 14, and the upper end of the stirring shaft 15 is rotatably connected to the rear side of the upper end of the evaporator 1 through a rotating shaft. A stirring paddle 4 is fixedly installed on the outer curved surface of the lower end of the stirring shaft 15, and there are several stirring paddles 4, which are symmetrically distributed with alternating patterns on the outer curved surface of the lower end of the stirring shaft 15.

[0024] Working Principle: In use, this utility model discharges the required low-temperature concentrated PVC treatment agent into the evaporator 1 through the feed pipe 2. When the PVC treatment agent is discharged into the evaporator 1, cooling water from the external cooling water pipe is discharged into the refrigeration chamber 11 through the refrigeration liquid inlet pipe 12. This allows the cooling water, in conjunction with the refrigeration chamber 11, to circulate and cool the PVC treatment agent inside the evaporator 1. Simultaneously, the stirring motor 14 is activated. When the stirring motor 14 is activated, it drives the stirring paddle 4 to rotate through the stirring shaft 15. When the stirring paddle 4 rotates, it stirs and flows the PVC treatment agent inside the evaporator 1, thereby improving the cooling efficiency of the PVC treatment agent. When the PVC treatment agent is cooled, the temperature of the PVC treatment agent is lowered, causing the solvent in the PVC treatment agent to drop below its saturated vapor pressure, promoting the low-temperature evaporation of the PVC treatment agent. This allows the solvent in the PVC treatment agent solution to escape through low-temperature evaporation, thereby achieving the purpose of concentration.

[0025] Simultaneously, by controlling the activation of the external vacuum pump, a vacuum is created inside the evaporator 1 through the vacuum tube 9, establishing a vacuum environment within the evaporator 1. This further reduces the evaporation temperature of the PVC treatment agent, thereby increasing the concentration speed of the PVC treatment agent. Simultaneously, when the PVC treatment agent undergoes low-temperature evaporation, the exhaust fan 5 is activated. When the exhaust fan 5 is activated, the low-temperature vapor of the PVC treatment agent is discharged into the condenser 6. The condenser 6 condenses the low-temperature vapor and discharges the condensate into the collection tank 7 for centralized collection. The concentrated PVC treatment agent inside the evaporator 1 is then discharged outwards through the discharge pipe 10, thus achieving concentration of the PVC treatment agent solution while further improving concentration efficiency.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A PVC treatment agent low-temperature concentration apparatus, characterized by: The utility model relates to a PVC processing agent evaporating device, including evaporating jar (1), the upper end side fixed communication of evaporating jar (1) is used for the feed pipe (2) of PVC processing agent discharge to evaporating jar (1) inside, the upper end middle part fixed mounting of evaporating jar (1) is evaporating pipe (3), the outer end fixed communication of evaporating pipe (3) is exhaust fan (5), the side end of exhaust fan (5) is through the pipeline fixed communication of condenser (6), the bottom fixed communication of condenser (6) is collection jar (7), the upper end front side fixed communication of evaporating jar (1) is vacuum pipe (9), the bottom side end fixed communication of evaporating jar (1) is discharge pipe (10), The lower end outer curve fixed mounting of evaporating jar (1) is refrigeration cavity (11), the upper and lower end outer side fixed communication of refrigeration cavity (11) is refrigeration liquid inlet pipe (12) and refrigeration liquid outlet pipe (13) respectively, the upper end rear side fixed mounting of evaporating jar (1) is stirring motor (14), the lower end transmission shaft part fixed mounting of stirring motor (14) is stirring shaft (15), the lower end outer curve fixed mounting of stirring shaft (15) is stirring paddle (4).

2. The PVC treating agent low-temperature concentration device according to claim 1, characterized in that: The inner portion of the evaporating jar (1) is fixedly installed with a pressure sensor and a temperature sensor.

3. The PVC treatment agent low-temperature concentration device according to claim 2, characterized in that: The exhaust fan (5) is fixedly installed on the upper end of the evaporating jar (1), and the bottom of the collection jar (7) is fixedly communicated with the recovery pipe (8).

4. The PVC treating agent low-temperature concentration device according to claim 3, characterized in that: The vacuum pipe (9) is communicated with the external vacuum pump through the connecting pipeline, and the feed pipe (2), the evaporating pipe (3), the recovery pipe (8), the vacuum pipe (9) and the discharge pipe (10) are respectively provided with a switch valve in the inner portion.

5. The PVC treatment agent low-temperature concentration device according to claim 4, characterized in that: The outer end of the refrigeration cavity (11) is bonded with a heat preservation cover, and the refrigeration liquid inlet pipe (12) and the refrigeration liquid outlet pipe (13) are communicated with the external cooling water pipeline through the circulating pump.

6. The PVC treatment agent low-temperature concentration device according to claim 5, characterized in that: The upper end of the stirring shaft (15) is rotatably connected to the rear side of the upper end of the evaporating jar (1) through the rotating shaft.

7. The PVC treatment agent low-temperature concentration device according to claim 6, characterized in that: The number of stirring paddles (4) is several, which are respectively distributed in an interlaced and symmetrical manner on the outer curve of the lower end of the stirring shaft (15).

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