An extraction and synthesis device for esterification synthesis of tri-n-butyl citrate

Abstract

The utility model relates to an extraction and synthesis device for esterification synthesis of tri-n-butyl citrate, comprising a stripping device body and a recovery box, wherein a recovery mechanism is arranged inside the recovery box, a discharge assembly is arranged at the bottom of the recovery box, the recovery mechanism comprises a heat exchange bin and a recovery bin arranged inside the recovery box, and two water inlet pipes are fixedly connected to the back of the recovery box. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate increases the recovery function by arranging the recovery mechanism for the extraction and synthesis device for esterification synthesis of tri-n-butyl citrate, thereby recovering the heat and chemical components in the waste gas of tri-n-butyl citrate, reducing the waste of resources and the impact on the surrounding air, and solving the problem that the device does not have the recovery function, is inconvenient to recycle the heat and chemical components in the waste gas during the stripping process of tri-n-butyl citrate, and is easy to cause waste of resources and affect the quality of the surrounding air.

Description

Technical Field

[0001] The utility model relates to the technical field of tri-n-butyl citrate synthesis, in particular to an extraction synthesis device for esterification synthesis of tri-n-butyl citrate. Background Art

[0002] Tri-n-butyl citrate, chemical name 3-hydroxy-3-carboxy tributyl glutarate, is an ester compound, colorless, transparent, high-boiling-point liquid, slightly soluble in water, and miscible with most organic solvents. It is industrially produced by the reaction of citric acid and n-butanol, and can be directly used as a plasticizer, or further processed into acetyl tributyl citrate, a plasticizer with excellent performance. At present, in the synthesis process of tri-n-butyl citrate by esterification, an extraction synthesis device is required for stripping.

[0003] Please refer to announcement number CN215540798U for an esterification synthesis tri-n-butyl citrate extraction synthesis device, which includes a transmission component; the central outer surface of the transmission component is fixedly welded to the lower end outer surface of a transmission rod, a bevel gear 1 is arranged inside the transmission component, the bevel gear 1 is meshingly connected to a transmission rod 2, one end of the transmission rod 2 is sleeved and connected to a rotating tooth, a partition is arranged at the outer end of the rotating tooth, a spoon plate is fixedly welded to the outer surface of the partition, and the transmission component is arranged so that wastewater can enter the interior of the sleeve plate through the water suction trough under the drive of the motor, thereby realizing the upward adjustment of wastewater, and then the wastewater will seep out from the dropper, and then the rotation of the fan plate can realize sufficient reaction with the gas in the steam input pipe, and the cycle repeats, and the wastewater at the bottom is continuously raised to the dropper by the spoon plate to repeat the purification process, thereby realizing effective and efficient purification of toxic substances.

[0004] However, there is a defect in this patent, that is, it does not have a recycling function. During the stripping process of tri-n-butyl citrate, it is not convenient to recycle the heat and chemical components in the exhaust gas, which easily causes waste of resources and affects the surrounding air quality. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides an extraction and synthesis device for esterification synthesis of tri-n-butyl citrate, which has the advantages of recovery, purification, energy saving, etc., and solves the problem that the device does not have a recovery function, and in the process of stripping tri-n-butyl citrate, it is inconvenient to recycle the heat and chemical components in the exhaust gas, which easily causes waste of resources and affects the surrounding air quality.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an extraction synthesis device for esterification synthesis of tri-n-butyl citrate, comprising a stripping device body and a recovery box, wherein a recovery mechanism is arranged inside the recovery box, and a discharge assembly is arranged at the bottom of the recovery box;

[0007] The recovery mechanism comprises a heat exchange bin and a recovery bin arranged inside the recovery box, two water inlet pipes are fixedly connected to the back of the recovery box, a water inlet valve is fixedly connected to the inside of the water inlet pipe, a heat preservation baffle is fixedly connected to the inside of the recovery box, an air pump is fixedly connected to the left side of the recovery box, and the input end of the air pump is fixedly connected to a first air pipe fixedly connected to the stripping device body;

[0008] The recovery mechanism also includes a second air pipe fixedly connected to the air pump, a serpentine heat exchange pipe connected to the second air pipe is fixedly connected to the interior of the heat exchange bin, an activated carbon adsorption plate is inserted into the interior of the recovery bin, and an exhaust pipe connected to the recovery bin is fixedly connected to the top of the recovery box.

[0009] Furthermore, the stripping device body includes a box body, a feed pipe, a discharge pipe, a drive device and a steam pipe, the feed pipe and the discharge pipe are both fixedly connected to the box body, the steam pipe is fixedly connected to the right side of the box body, and the drive device is fixedly connected to the top of the box body.

[0010] Furthermore, two water inlets are provided on the back of the recovery box, and the two water inlet pipes are respectively connected to the heat exchange bin and the recovery bin through the water inlets.

[0011] Furthermore, a gas extraction port is provided on the top of the stripping device body, and the first air pipe is connected to the stripping device body through the gas extraction port.

[0012] Furthermore, a connecting hole is provided on the top of the recovery box, and the serpentine heat exchange tube is connected with the second air pipe through the connecting hole.

[0013] Furthermore, a mounting hole is provided inside the thermal insulation partition, and the other end of the serpentine heat exchange tube extends to the inside of the recovery bin through the mounting hole.

[0014] Furthermore, the discharge assembly includes two drain pipes fixedly connected to the recovery box, and a drain valve is fixedly connected inside the drain pipe.

[0015] Furthermore, two drain ports are provided at the bottom of the recovery box, and the drain pipes are respectively connected to the heat exchange bin and the recovery bin through the drain ports.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate has a recovery function added to the extraction and synthesis device for esterification synthesis of tri-n-butyl citrate by arranging a recovery mechanism, so that the heat and chemical components in the waste gas of tri-n-butyl citrate can be recovered, the waste of resources and the impact on the surrounding air are reduced, and the problem of not having a recovery function and being inconvenient to recycle the heat and chemical components in the waste gas during the stripping process of tri-n-butyl citrate is solved, which easily causes waste of resources and affects the quality of the surrounding air.

[0018] 2. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate is convenient for recycling and reusing heat and chemical components by setting a drainage component, thereby saving resources and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0020] Figure 2 This is a top view of the partial structure of the recycling box of the utility model;

[0021] Figure 3 It is a front view of the structure of the utility model.

[0022] In the figure: 1. Stripping device body; 101. Box body; 102. Feed pipe; 103. Discharge pipe; 104. Driving device; 105. Steam pipe; 2. Recovery box; 201. Heat exchange chamber; 202. Recovery chamber; 3. Water inlet pipe; 4. Water inlet valve; 5. Insulation partition; 6. Air pump; 7. First air pipe; 8. Second air pipe; 9. Serpentine heat exchange tube; 10. Activated carbon adsorption plate; 11. Exhaust pipe; 12. Drain pipe; 13. Drain valve. DETAILED DESCRIPTION

[0023] 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.

[0024] See also Figure 1-3 In this embodiment, an extraction and synthesis device for esterification synthesis of tri-n-butyl citrate includes a stripping device body 1 and a recovery box 2. A recovery mechanism is arranged inside the recovery box 2, and a discharge component is arranged at the bottom of the recovery box 2.

[0025] Embodiment 1: The stripping device body 1 includes a box body 101, a feed pipe 102, a discharge pipe 103, a drive device 104 and a steam pipe 105. The feed pipe 102 and the discharge pipe 103 are both fixedly connected to the box body 101, the steam pipe 105 is fixedly connected to the right side of the box body 101, the drive device 104 is fixedly connected to the top of the box body 101, the feed pipe 102 is fixedly connected to the feeding assembly, the steam pipe 105 is fixedly connected to the steam assembly, the tri-n-butyl citrate to be stripped enters the interior of the box body 101 through the feed pipe 102, the steam pipe 105 transports steam to the interior of the box body 101, the tri-n-butyl citrate to be stripped is stripped, and the drive device 104 accelerates the stripping efficiency.

[0026] Among them, the recovery mechanism includes a heat exchange bin 201 and a recovery bin 202 arranged inside the recovery box 2. Two water inlet pipes 3 are fixedly connected to the back of the recovery box 2. A water inlet valve 4 is fixedly connected to the inside of the water inlet pipe 3. Two water inlets are opened on the back of the recovery box 2. The two water inlet pipes 3 are connected to the heat exchange bin 201 and the recovery bin 202 through the water inlets respectively. The other end of the water inlet pipe 3 is fixedly connected to the water supply component. The water inlet valve 4 is opened, and the clean water inside the water inlet pipe 3 enters the heat exchange bin 201 and the recovery bin 202.

[0027] Among them, an insulating baffle 5 is fixedly connected to the inside of the recovery box 2, an air pump 6 is fixedly connected to the left side of the recovery box 2, an air suction port is opened on the top of the stripping device body 1, and the first air pipe 7 is connected to the stripping device body 1 through the air suction port. When the air pump 6 is powered on, the waste gas generated inside the stripping device body 1 is extracted through the first air pipe 7 and transported. The input end of the air pump 6 is fixedly connected to the first air pipe 7 fixedly connected to the stripping device body 1.

[0028] The recovery mechanism further includes a second air pipe 8 fixedly connected to the air pump 6, a serpentine heat exchange pipe 9 connected to the second air pipe 8 is fixedly connected to the interior of the heat exchange chamber 201, a connecting hole is provided on the top of the recovery box 2, the serpentine heat exchange pipe 9 is connected to the second air pipe 8 through the connecting hole, the air pump 6 transports the extracted exhaust gas to the interior of the serpentine heat exchange pipe 9 through the second air pipe 8, the exhaust gas entering the serpentine heat exchange pipe 9 exchanges heat with the clean water in the heat exchange chamber 201, so as to facilitate the recovery of heat in the exhaust gas, and the interior of the heat preservation partition 5 is opened. A mounting hole is provided, and the other end of the serpentine heat exchange tube 9 extends to the interior of the recovery bin 202 through the mounting hole. The exhaust gas after heat recovery enters the interior of the recovery bin 202 through the serpentine heat exchange tube 9, and the chemical components dissolved in water in the exhaust gas are redissolved in the clean water, which is convenient for the recycling and reuse of materials. An activated carbon adsorption plate 10 is plugged into the interior of the recovery bin 202, and an exhaust pipe 11 connected to the recovery bin 202 is fixedly connected to the top of the recovery box 2. After adsorption and filtration by the activated carbon adsorption plate 10, the exhaust gas is discharged through the exhaust pipe 11.

[0029] It should be noted that, by setting up a recovery mechanism, a recovery function is added to the extraction and synthesis device for esterification synthesis of tri-n-butyl citrate, so that the heat and chemical components in the tri-n-butyl citrate waste gas can be recovered, the waste of resources and the impact on the surrounding air are reduced, and the problem of not having a recovery function and being inconvenient to recycle the heat and chemical components in the waste gas during the stripping process of tri-n-butyl citrate is solved, which easily causes waste of resources and affects the surrounding air quality.

[0030] Specifically, during the extraction and synthesis of tri-n-butyl citrate by esterification, the air pump 6 is energized, and the waste gas generated inside the stripping device body 1 is extracted through the first air pipe 7, and transported to the inside of the serpentine heat exchange tube 9 through the second air pipe 8. The waste gas entering the serpentine heat exchange tube 9 exchanges heat with the clean water inside the heat exchange bin 201. The waste gas after heat recovery enters the recovery bin 202 through the serpentine heat exchange tube 9. The chemical components dissolved in water in the waste gas are redissolved in the clean water inside the recovery bin 202, and then adsorbed and filtered by the activated carbon adsorption plate 10. Finally, it is discharged through the exhaust pipe 11, thereby facilitating the recovery of heat and chemical components in the waste gas of tri-n-butyl citrate and reducing resource waste and the impact on the surrounding air.

[0031] Example 2: Please refer to Figure 1 and Figure 3 The discharge assembly includes two drain pipes 12 fixedly connected to the recovery box 2, a drain valve 13 is fixedly connected inside the drain pipe 12, and two drain ports are opened at the bottom of the recovery box 2. The drain pipe 12 is connected to the heat exchange bin 201 and the recovery bin 202 through the drain ports respectively. When the drain valve 13 is opened, the hot water inside the heat exchange bin 201 is discharged through the drain pipe 12, and the well water with chemical components inside the recovery bin 202 is discharged through the drain pipe 12, which is convenient for users to recover heat and chemical raw materials and reduce pollution to the surrounding air.

[0032] It should be noted that by providing a drainage component, it is convenient to recycle and reuse heat and chemical components, thus saving resources and costs.

[0033] Specifically, during the extraction and synthesis of tri-n-butyl citrate by esterification, the drain valve 13 is opened, the hot water inside the heat exchange chamber 201 is discharged through the drain pipe 12, and the well water with chemical components inside the recovery chamber 202 is discharged through the drain pipe 12, which is convenient for users to recover heat and chemical raw materials.

[0034] The working principle of the above embodiment is:

[0035] (1) In the extraction and synthesis device for esterification synthesis of tri-n-butyl citrate, during the extraction and synthesis of tri-n-butyl citrate by esterification synthesis, the air pump 6 is powered on, and the waste gas generated in the stripping device body 1 is extracted through the first air pipe 7 and transported to the inside of the serpentine heat exchange tube 9 through the second air pipe 8. The waste gas entering the serpentine heat exchange tube 9 exchanges heat with the clean water in the heat exchange bin 201. The waste gas after heat recovery enters the recovery bin 202 through the serpentine heat exchange tube 9. The chemical components dissolved in water in the waste gas are redissolved in the clean water in the recovery bin 202, and then adsorbed and filtered by the activated carbon adsorption plate 10. Finally, the waste gas is discharged through the exhaust pipe 11, thereby facilitating the recovery of heat and chemical components in the waste gas of tri-n-butyl citrate and reducing resource waste and the impact on the surrounding air.

[0036] (2) In the extraction and synthesis device for esterification synthesis of tri-n-butyl citrate, during the extraction and synthesis of tri-n-butyl citrate by esterification synthesis, the drain valve 13 is opened, the hot water inside the heat exchange chamber 201 is discharged through the drain pipe 12, and the well water with chemical components inside the recovery chamber 202 is discharged through the drain pipe 12, so as to facilitate the user to recover heat and chemical raw materials.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. 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.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An extraction synthesis device for esterification synthesis of tri-n-butyl citrate, comprising a stripping device body (1) and a recovery tank (2), characterized in that: A recovery mechanism is provided inside the recovery box (2), and a discharge assembly is provided at the bottom of the recovery box (2); The recovery mechanism comprises a heat exchange chamber (201) and a recovery chamber (202) arranged inside the recovery box (2); two water inlet pipes (3) are fixedly connected to the back of the recovery box (2); a water inlet valve (4) is fixedly connected to the inside of the water inlet pipe (3); a heat insulation baffle (5) is fixedly connected to the inside of the recovery box (2); an air pump (6) is fixedly connected to the left side of the recovery box (2); and the input end of the air pump (6) is fixedly connected to a first air pipe (7) fixedly connected to the stripping device body (1); The recovery mechanism also includes a second air pipe (8) fixedly connected to the air pump (6); a serpentine heat exchange pipe (9) communicating with the second air pipe (8) is fixedly connected to the interior of the heat exchange bin (201); an activated carbon adsorption plate (10) is inserted into the interior of the recovery bin (202); and an exhaust pipe (11) communicating with the recovery bin (202) is fixedly connected to the top of the recovery box (2).

2. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate according to claim 1, characterized in that: The stripping device body (1) comprises a casing (101), a feed pipe (102), a discharge pipe (103), a driving device (104) and a steam pipe (105); the feed pipe (102) and the discharge pipe (103) are both fixedly connected to the casing (101); the steam pipe (105) is fixedly connected to the right side of the casing (101); and the driving device (104) is fixedly connected to the top of the casing (101).

3. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate according to claim 1, characterized in that: Two water inlets are provided on the back of the recovery box (2), and the two water inlet pipes (3) are respectively connected to the heat exchange chamber (201) and the recovery chamber (202) through the water inlets.

4. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate according to claim 1, characterized in that: The top of the stripping device body (1) is provided with an air suction port, and the first air pipe (7) is connected to the stripping device body (1) through the air suction port.

5. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate according to claim 1, characterized in that: A connecting hole is provided on the top of the recovery box (2), and the serpentine heat exchange pipe (9) is connected to the second air pipe (8) through the connecting hole.

6. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate according to claim 1, characterized in that: A mounting hole is provided inside the thermal insulation baffle (5), and the other end of the serpentine heat exchange tube (9) extends to the inside of the recovery bin (202) through the mounting hole.

7. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate according to claim 1, characterized in that: The discharge assembly comprises two drainage pipes (12) fixedly connected to the recovery box (2), and a drainage valve (13) is fixedly connected inside the drainage pipe (12).

8. The extraction and synthesis device for esterification synthesis of tri-n-butyl citrate according to claim 7, characterized in that: The bottom of the recovery box (2) is provided with two drainage ports, and the drainage pipe (12) is connected to the heat exchange chamber (201) and the recovery chamber (202) respectively through the drainage ports.

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