Heat-sensitive material evaporation device

Abstract

The utility model relates to the technical field of material evaporation and separation, in particular to a heat-sensitive material evaporation device which comprises a separation assembly, a primary condensation assembly and a secondary condensation assembly, the separation assembly comprises a high-level tank, a preheater, a scraper type evaporator and a heavy component receiving tank, the primary condensation assembly comprises a condenser I and a light component receiving tank I, and the secondary condensation assembly comprises a condenser II and a light component receiving tank II. The light component discharging end of the scraper type evaporator is communicated with the feeding end of a first condenser, the discharging end of the first condenser is communicated with a first light component receiving tank, the secondary condensation assembly comprises a second condenser, a second light component receiving tank and a vacuum pump, the first light component receiving tank is communicated with the feeding end of the second condenser, and the second light component receiving tank is communicated with the feeding end of the second condenser. The heat-sensitive product separation device has the advantages that the conveying speed is increased, rapid separation of a product and a solvent is achieved through the scraper type evaporator, internal materials are stirred, and the separation quality and the separation efficiency of heat-sensitive products are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of material evaporation and separation, in particular to a heat-sensitive material evaporation device. Background Art

[0002] An evaporator is a device that uses heat energy to convert liquid into steam, causing the liquid to boil and vaporize, and to separate some of the components in the raw material into heavy components and light components. When the raw materials are transmitted to the evaporation point, some of the light component raw materials need to be condensed so that the light component raw materials can be settled for easy collection and processing. Some raw materials are only cooled once, and some raw materials will be separated during storage. Different raw materials require different condensation temperatures. Especially when transmitted to the inside of some tanks, normal pressure is not conducive to the transmission of evaporating gases. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a device for evaporating heat-sensitive materials, which has the advantages of increasing the transmission rate, realizing rapid separation of the product and the solvent through a scraper evaporator, stirring the internal materials, and ensuring the separation quality and separation efficiency of the heat-sensitive products.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat-sensitive material evaporation device, comprising a separation component, a primary condensation component and a secondary condensation component;

[0007] The separation component includes a high-level tank, a preheater, a scraper evaporator and a heavy component receiving tank, the high-level tank is connected to the feed end of the preheater, the discharge end of the preheater is connected to the feed end of the scraper evaporator, and the heavy component discharge end of the scraper evaporator is connected to the heavy component receiving tank;

[0008] The primary condensation component comprises a condenser 1 and a light component receiving tank 1, the light component discharge end of the scraper evaporator is connected to the feed end of the condenser 1, and the discharge end of the condenser 1 is connected to the light component receiving tank 1;

[0009] The secondary condensation component includes condenser 2, light component receiving tank 2 and a vacuum pump. The light component receiving tank 1 is connected to the feed end of condenser 2, the discharge end of condenser 2 is connected to light component receiving tank 2, and light component receiving tank 2 is connected to several vacuum pumps.

[0010] Preferably, the separation component further comprises a speed regulating valve, and a speed regulating valve for adjusting the flow rate is installed at the discharge end of the high-level tank.

[0011] Preferably, the separation assembly further comprises a solenoid valve and a sampling tank, the heavy component receiving tank is connected to the sampling tank, and a solenoid valve is installed at the connection point between the heavy component receiving tank and the sampling tank.

[0012] Preferably, the secondary condensation component further includes a quick exhaust valve, and the light component receiving tank 2 is connected to a plurality of quick exhaust valves.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a heat-sensitive material evaporation device having the following features:

[0015] Beneficial effects:

[0016] The heat-sensitive material evaporation device stores the raw materials of the product in a high-level tank, and flows the solution containing the product into the scraper evaporator through the high-level tank. The volatile components in the scraper evaporator flow out through the top, and the non-volatile components flow out through the bottom, so that the non-volatile components are transmitted to the heavy component receiving tank, thereby realizing the rapid separation of the product and the solvent. Through the setting of the vacuum pump, negative pressure is generated inside the light component receiving tank 2, thereby increasing the transmission rate, realizing the rapid separation of the product and the solvent through the scraper evaporator, stirring the internal materials, and ensuring the separation quality and separation efficiency of the heat-sensitive product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model.

[0018] Markings in the attached figure: 1. High-level tank; 2. Speed ​​regulating valve; 3. Preheater; 4. Scraper-type evaporator; 5. Heavy component receiving tank; 6. Solenoid valve; 7. Sampling tank; 8. Condenser 1; 9. Light component receiving tank 1; 10. Condenser 2; 11. Light component receiving tank 2; 12. Vacuum pump; 13. Quick exhaust valve. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example:

[0021] See also Figure 1 , a heat-sensitive material evaporation device, including a separation component, a primary condensation component and a secondary condensation component.

[0022] The separation component includes a high-level tank 1, a preheater 3, a scraper evaporator 4 and a heavy component receiving tank 5. The high-level tank 1 is connected to the feed end of the preheater 3, the discharge end of the preheater 3 is connected to the feed end of the scraper evaporator 4, and the heavy component discharge end of the scraper evaporator 4 is connected to the heavy component receiving tank 5.

[0023] The primary condensation component includes a condenser 8 and a light component receiving tank 9. The light component discharge end of the scraper evaporator 4 is connected to the feed end of the condenser 8, and the discharge end of the condenser 8 is connected to the light component receiving tank 9.

[0024] The secondary condensation component includes a condenser 10, a light component receiving tank 11 and a vacuum pump 12. The light component receiving tank 19 is connected to the feed end of the condenser 10, the discharge end of the condenser 10 is connected to the light component receiving tank 11, and the light component receiving tank 11 is connected to a plurality of vacuum pumps 12. A scraper evaporator 4 is used to realize the rapid separation of heat-sensitive substances and solvents, and the application of the production device for shortening the residence time of materials under high temperature conditions in the production process. The scraper evaporator 4 is a structure on the market in which a motor is provided inside to drive the scraper to rotate. The scraper inside the evaporator for scraping the inner wall of the evaporator quickly separates the heat-sensitive substances and the solvent during operation, and reduces the residence time of the heat-sensitive substances in the high temperature state. The present invention can solve the problem of separating 2-aminobutyronitrile from the solvent. By using the distillation principle, the purity of 2-aminobutyronitrile after distillation by a high-efficiency distillation device is ≥90%. The preheater 3 is a heating device, which can Any device that can heat the material can be used, condenser 1 8 and condenser 2 10 are devices for cooling the material, and any device that can cool the material can be used. Preferably, a valve is installed on the connecting pipe between the light component receiving tank 2 11 and the vacuum pump 12 to control the on-off between the light component receiving tank 2 11 and the vacuum pump 12. The raw materials of the product are stored in the high-level tank 1, and the solution containing the product flows into the scraper evaporator 4 through the high-level tank 1. The volatile components in the scraper evaporator 4 flow out from the top, and the non-volatile components flow out from the bottom, so that the non-volatile components are transmitted to the heavy component receiving tank 5, thereby realizing the rapid separation of the product and the solvent. Through the setting of the vacuum pump 12, a negative pressure is generated inside the light component receiving tank 2 11, thereby increasing the transmission rate, and realizing the rapid separation of the product and the solvent through the scraper evaporator 4, stirring the internal materials, and ensuring the separation quality and separation efficiency of the heat-sensitive products.

[0025] The separation component also includes a speed regulating valve 2. The discharge end of the high-level tank 1 is equipped with a speed regulating valve 2 for adjusting the flow rate. By setting the speed regulating valve 2, the rate of material flowing out of the high-level tank 1 is adjusted, which is beneficial to controlling the transportation of the material.

[0026] The separation component also includes a solenoid valve 6 and a sampling tank 7. The heavy component receiving tank 5 is connected to the sampling tank 7. The solenoid valve 6 is installed at the connection between the heavy component receiving tank 5 and the sampling tank 7. The solenoid valve 6 is preferably electrically connected to the controller. The controller can be a computer or a PLC. The solenoid valve 6 is preferably connected to the bottom of the heavy component receiving tank 5. Through the setting of the solenoid valve 6, the heavy component material can be conveniently sampled in the heavy component receiving tank 5 to facilitate detection.

[0027] The secondary condensation component also includes a quick exhaust valve 13. The light component receiving tank 11 is connected to a plurality of quick exhaust valves 13. Through the setting of the quick exhaust valves 13, when the pressure is too high, the quick exhaust valves 13 can be opened to reduce the pressure inside the light component receiving tank 11, thereby preventing damage caused by excessive pressure inside the light component receiving tank 11 in the event of a fault.

[0028] The high-level tank 1, the preheater 3, the condenser, the light component receiving tank and the heavy component receiving tank 5 are preferably made of 304 stainless steel.

[0029] The scraper evaporator 4 preferably has an evaporation area of ​​6 m2, a motor of 7.5 kW, and a scraper speed of 132 rpm.

[0030] The preferred heat exchange area of ​​preheater 3 is 10 m2.

[0031] The optimal heat exchange area of ​​the condenser is 30㎡-45㎡.

[0032] The preferred volume of the light component receiving tank is V=3000L-3500L.

[0033] The preferred volume of the heavy component receiving tank 5 is V=1500L. The heavy component receiving tank 5 is preferably a tank body with a cooling function, which can reduce the temperature of the heavy component receiving tank 5 to cool the heavy component.

[0034] The preferred suction capacity of the vacuum pump 12 = 500m 3 / h.

[0035] When in use, the liquid mixture is heated to a high temperature by the preheater 3 and enters the scraper evaporator 4. The liquid mixture contacts the high-speed rotating scraper in the scraper evaporator 4, and the high-speed rotating scraper disperses the material to the inner wall of the scraper evaporator 4 to form a film. Due to the movement of the film and the high temperature environment, the liquid mixture forms an extremely thin evaporation layer on the film.

[0036] Next, the volatile components in the evaporation layer of the mixture begin to evaporate rapidly to form steam, which flows out from the top of the film and enters the condenser 8. In the condenser 8, the steam is cooled and converted into a liquid state for recycling.

[0037] The non-volatile heat-sensitive components and solvent residues enter the pre-cooled heavy component receiving tank 5 through the bottom pipe of the evaporator and are temporarily stored at a low temperature, thereby achieving separation of the mixture.

[0038] When using, use the following settings:

[0039] 1. Confirm that the equipment and facilities are in good condition and in standby state;

[0040] 2. Start the vacuum pump 12, build a vacuum system, make the system vacuum ≤-0.07MPa, start the preheater 3 for heating, start the scraper evaporator 4 for heating, start the stirring function of the scraper evaporator 4, open the bottom valve of the scraper evaporator 4, adjust the discharge valve of the high-level tank 1 and the speed regulating valve 2 to make the flow rate 400-450L / h, and start distillation;

[0041] 3. During the distillation process, observe the liquid level ratio between the high-level tank 1 and the heavy component receiving tank 5. It is preferred to install liquid level gauges on the high-level tank 1 and the heavy component receiving tank 5;

[0042] 4. After distillation is completed, close the discharge valve of the high-level tank 1, turn off the stirring of the evaporator, turn off the preheater 3, close the vacuum valve (preferably installed between the light component receiving tank 2 11 and the vacuum pump 12), break the nitrogen, and turn off the vacuum pump 12;

[0043] The heavy components are transferred to the next station; the light components are put into the turnover tank for preparation.

[0044] It should be noted that the phrases "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiments may include certain features, structures or characteristics, but not every embodiment may include the certain features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when describing certain features, structures or characteristics in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such features, structures or characteristics in conjunction with other embodiments, whether explicitly or not explicitly described.

[0045] It should be easily understood that “on,” “above,” and “over” in the present disclosure should be interpreted in the broadest manner, so that “on” not only means “directly on something,” but also includes the meaning of “on something” with intervening features or layers therebetween, and “above” or “over” not only includes the meaning of “above” or “over,” but also may include the meaning of “above” or “over something” with no intervening features or layers therebetween (i.e., directly on something).

[0046] In addition, spatially relative terms, such as "below," "below," "beneath," "above," "above," etc., may be used herein for ease of description to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein may likewise be interpreted accordingly.

[0047] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A heat-sensitive material evaporation device, characterized in that: It includes a separation component, a primary condensation component and a secondary condensation component; The separation component comprises a high-level tank (1), a preheater (3), a scraper evaporator (4) and a heavy component receiving tank (5); the high-level tank (1) is connected to the feed end of the preheater (3); the discharge end of the preheater (3) is connected to the feed end of the scraper evaporator (4); and the heavy component discharge end of the scraper evaporator (4) is connected to the heavy component receiving tank (5); The primary condensation component comprises a condenser (8) and a light component receiving tank (9), the light component discharge end of the scraper evaporator (4) is connected to the feed end of the condenser (8), and the discharge end of the condenser (8) is connected to the light component receiving tank (9); The secondary condensation component comprises a second condenser (10), a second light component receiving tank (11) and a vacuum pump (12); the first light component receiving tank (9) is connected to the feed end of the second condenser (10); the discharge end of the second condenser (10) is connected to the second light component receiving tank (11); and the second light component receiving tank (11) is connected to a plurality of vacuum pumps (12).

2. A heat-sensitive material evaporation device according to claim 1, characterized in that: The separation component further comprises a speed regulating valve (2), and a speed regulating valve (2) for adjusting the flow rate is installed at the discharge end of the high-level tank (1).

3. A heat-sensitive material evaporation device according to claim 1, characterized in that: The separation assembly further comprises a solenoid valve (6) and a sampling tank (7); the heavy component receiving tank (5) and the sampling tank (7) are connected; and a solenoid valve (6) is installed at the connection point between the heavy component receiving tank (5) and the sampling tank (7).

4. A heat-sensitive material evaporation device according to claim 1, characterized in that: The secondary condensation component further comprises a quick exhaust valve (13), and the second light component receiving tank (11) is connected to a plurality of quick exhaust valves (13).

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