Pentaerythritol mother liquor extraction tower

Abstract

The utility model relates to the technical field of biochemical manufacturing equipment, in particular to a pentaerythritol mother liquor extraction tower. Comprising a tower body assembly, a feeding assembly and a pressurizing assembly, the tower body assembly comprises an extraction tower main body and a first assembly ring, the feeding assembly comprises a feeding tower, the pressurizing assembly comprises a hydraulic cylinder, the lower end of the feeding tower is connected with a material guide pipe, the output end of the hydraulic cylinder is connected with a linkage rod, the outer wall of the linkage rod is connected with a sleeving pipe, and the sleeving pipe is connected with a first assembly ring. The outer wall, away from the linkage rod, of the sleeving pipe is connected with a pressurizing plate. When raw materials are added into the material guiding pipe from the material guiding pipe, the hydraulic cylinder runs to drive the pressurizing plate to do reciprocating motion through the linkage rod, the raw materials in the material guiding pipe are pressurized in the process, the raw materials in the material guiding pipe flow out through a mixing groove formed in the pressurizing plate, and circulating pressurizing is carried out through reciprocating motion of the pressurizing plate; furthermore, after the raw materials flow into the extraction tower main body, the target product is separated from the mother liquor.

Description

Technical Field

[0001] This utility model relates to the field of biochemical manufacturing equipment technology, specifically a pentaerythritol mother liquor extraction tower. Background Technology

[0002] Pentaerythritol is an important chemical raw material widely used in synthetic resins, plasticizers, lubricants, coatings, and other fields. In the production process of pentaerythritol, the extraction tower is one of the key pieces of equipment used for separating and purifying the mother liquor. The extraction tower uses liquid-liquid extraction technology to separate the target product from complex mixtures, improving product purity and yield.

[0003] An existing patent application with authorization publication number CN 219290663 U discloses a pentaerythritol mother liquor extraction tower, comprising an extraction tower body, a sealing device fixedly connected to the top of the extraction tower body, a reciprocating device fixedly connected to the top of the sealing device, a protective shell fixedly connected to the top of the reciprocating device, and a feed inlet fixedly connected to the inner wall of the protective shell. This technical solution allows for pressurization of the entire liquid via a fixed plate, causing the liquid to be extracted to be discharged through internal sieve holes and then subjected to pressure of different densities through an external mixing port, which can improve the success rate of liquid extraction. However, due to the pressure factors within the mixing tank, when the fixed plate is used to pressurize the entire liquid, the pressure generated by the separation of the sieve holes and the mixing port can cause compression of the mixing tank, affecting the safety of the device. Summary of the Invention

[0004] To address the above problems, the purpose of this utility model is to provide a pentaerythritol mother liquor extraction tower. This tower solves the problem that, due to the pressure factors within the mixing tank, when the liquid is pressurized using a fixed plate, the pressure generated by the separation of the sieve holes and the mixing port can cause compression of the mixing tank, affecting the safety of the device. The tower pressurizes the raw material inside the feed pipe, allowing it to flow out through the mixing tank created by the pressure plate. The reciprocating motion of the pressure plate further circulates the pressurization, facilitating the flow of the raw material into the main body of the extraction tower and the separation of the target product from the mother liquor.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pentaerythritol mother liquor extraction tower, comprising a tower body assembly, a feeding assembly, and a pressurizing assembly. The tower body assembly includes an extraction tower body and a first assembly ring. The feeding assembly includes a feeding tower. The pressurizing assembly includes a hydraulic cylinder. The inner side of the lower wall of the extraction tower body is connected to a raffinate phase, and the inner side of the lower wall of the extraction tower body is connected to an extractant phase. An extractant inlet is provided between the raffinate phase and the extractant phase. A protective ring is connected to the inner wall of the feeding tower. A feed inlet is provided on the inner side of the feeding tower. A guide pipe is connected to the lower end of the feeding tower. A linkage rod is connected to the output end of the hydraulic cylinder. A sleeve is connected to the outer wall of the linkage rod. A pressure plate is connected to the outer wall of the sleeve away from the linkage rod. A mixing tank is opened on the inner side of the pressure plate.

[0006] The beneficial effects of this utility model are as follows: When the raw material is added into the feed pipe, the hydraulic cylinder drives the pressure plate to reciprocate through the linkage rod during operation. During this process, the raw material inside the feed pipe is pressurized, and the raw material inside will flow out through the mixing tank opened by the pressure plate. It is also circulated and pressurized through the reciprocating motion of the pressure plate, which facilitates the raw material to flow into the main body of the extraction tower and separate the target product from the mother liquor.

[0007] To separate the target product from the mother liquor by utilizing the difference in partition coefficients between two immiscible or partially miscible liquids:

[0008] As a further improvement to the above technical solution: the lower end of the extraction tower body is connected to a base, and the inner side of the base is provided with threaded holes for fixing it.

[0009] The beneficial effects of this improvement are as follows: by setting up the main body of the extraction tower, based on liquid-liquid extraction technology, the target product is separated from the mother liquor by utilizing the difference in the partition coefficient between two immiscible or partially miscible liquids. The base is used to install and fix the main body of the extraction tower.

[0010] To ensure material replenishment via the extractant phase as the liquid flows into the main body of the extraction tower:

[0011] As a further improvement to the above technical solution: the extractant inlet penetrates through and is connected to the main wall of the extraction tower.

[0012] The beneficial effects of this improvement are as follows: During use, the pentaerythritol mother liquor enters the main body of the extraction tower through the feed inlet. The raffinate phase is used to recover the material that was not extracted in this operation and reuse it in the future. At the same time, the raffinate phase can allow the extracted liquid to flow out of the main body of the extraction tower. When the liquid flows into the main body of the extraction tower, the extract phase can replenish the material.

[0013] To allow the pentaerythritol mother liquor to flow directly into the feed pipe through an extension from the bottom of the inlet:

[0014] As a further improvement to the above technical solution: the top of the feed inlet penetrates the top wall of the feed tower, and the bottom of the feed inlet penetrates the bottom wall of the feed tower and extends to the inside of the guide pipe.

[0015] The beneficial effects of this improvement are as follows: by setting up a feed pipe, pentaerythritol mother liquor is added into the main body of the extraction tower. The feed pipe extends from the bottom of the inlet to the inside of the feed pipe, so that the pentaerythritol mother liquor flows directly into the feed pipe.

[0016] In order to connect with the first assembly ring, thereby realizing the assembly connection between the feed pipe and the main body of the extraction tower:

[0017] As a further improvement to the above technical solution: both the upper and lower ends of the guide pipe are open, and a second assembly ring is connected to the outer wall of the end of the guide pipe away from the feed tower. The second assembly ring is connected to the first assembly ring by bolts, and a sealing gasket is provided at the connection between the second assembly ring and the first assembly ring.

[0018] The beneficial effects of this improvement are as follows: by setting the second assembly ring, it is used to connect with the first assembly ring, thereby realizing the assembly connection between the feed pipe and the main body of the extraction tower. When it is necessary to clean the feed pipe and the pressure plate, the connection between the second assembly ring and the first assembly ring can be disconnected, and then the feed pipe can be separated from the main body of the extraction tower.

[0019] In order to move the pressure plate:

[0020] As a further improvement to the above technical solution: the hydraulic cylinder is installed inside the feed tower and electrically connected to the operation panel, and the hydraulic cylinder is also located inside the protective ring.

[0021] The beneficial effects of this improvement are: the protective ring is used to protect the hydraulic cylinder inside the feed tower, and the hydraulic cylinder is used to push the pressure plate to move.

[0022] In order for the hydraulic cylinder to work and push the linkage rod to reciprocate up and down, thereby realizing the reciprocating motion of the sleeve in the vertical direction:

[0023] As a further improvement to the above technical solution: the sleeve is installed at equal intervals along the length of the linkage rod, and the top of the linkage rod is fixedly connected to the output end of the hydraulic cylinder.

[0024] The beneficial effects of this improvement are as follows: after the hydraulic cylinder is started, it works and pushes the linkage rod to move up and down, thereby realizing the reciprocating motion of the sleeve in the vertical direction.

[0025] In order to circulate pressurization through the reciprocating motion of the pressure plate, thereby facilitating the flow of raw materials into the main body of the extraction tower and separating the target product from the mother liquor:

[0026] As a further improvement to the above technical solution: the top view cross-section of the mixing tank is a fan-shaped structure, and the depth of the mixing tank is the same as the thickness of the pressure plate.

[0027] The beneficial effects of this improvement are as follows: when the raw material is added into the feed pipe, the hydraulic cylinder drives the pressure plate to reciprocate through the linkage rod during operation. In this process, the raw material inside the feed pipe is pressurized, and the raw material inside flows out through the mixing tank opened by the pressure plate. It is then circulated and pressurized through the reciprocating motion of the pressure plate, which facilitates the flow of the raw material into the main body of the extraction tower and the separation of the target product from the mother liquor. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model.

[0029] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0030] Figure 3 This is a cross-sectional structural diagram of the feed tower of this utility model.

[0031] Figure 4 This is a top view of the pressure plate of this utility model.

[0032] Figure 5 This is a three-dimensional structural diagram of the pressure plate of this utility model.

[0033] In the diagram: 1. Tower body assembly; 11. Extraction tower body; 12. Base; 13. Raffinate phase; 14. Extractant inlet; 15. Extraction phase; 16. First assembly ring; 2. Feed assembly; 21. Feed tower; 22. Protective ring; 23. Feed inlet; 24. Feed guide pipe; 25. Second assembly ring; 3. Pressurization assembly; 31. Hydraulic cylinder; 32. Linkage rod; 33. Sleeve pipe; 34. Pressure plate; 35. Mixing tank. Detailed Implementation

[0034] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0035] like Figure 1-5As shown, a pentaerythritol mother liquor extraction tower includes a tower body assembly 1, a feed assembly 2, and a pressurizing assembly 3. The tower body assembly 1 includes an extraction tower body 11 and a first assembly ring 16. The feed assembly 2 includes a feed tower 21. The pressurizing assembly 3 includes a hydraulic cylinder 31. A raffinate phase 13 is connected to the inner side of the lower wall of the extraction tower body 11, and an extractant phase 15 is connected to the inner side of the lower wall of the extraction tower body 11. An extractant inlet 14 is provided between the raffinate phase 13 and the extractant phase 15. A protective ring 22 is connected to the inner wall of the feed tower 21, and a feed inlet 23 is provided on the inner side of the feed tower 21. A feed guide pipe 24 is connected to the lower end of the feed tower 21. A linkage rod 32 is connected to the output end of the hydraulic cylinder 31. A sleeve pipe 33 is connected to the outer wall of the rod 32. A pressure plate 34 is connected to the outer wall of the sleeve pipe 33 away from the linkage rod 32. A mixing tank 35 is opened on the inner side of the pressure plate 34. A base 12 is connected to the lower end of the extraction tower body 11. A threaded hole for fixing is opened on the inner side of the base 12. Through the setting of the extraction tower body 11, based on liquid-liquid extraction technology, the target product is separated from the mother liquor by utilizing the difference in the partition coefficient between two immiscible or partially miscible liquids. The base 12 is used to install and fix the extraction tower body 11. The extractant inlet 14 penetrates the wall of the extraction tower body 11 and is connected to it. In use, the pentaerythritol mother liquor enters the extraction tower body 11 through the feed inlet 23. In section 1, the raffinate phase 13 is used to recover the material that was not extracted in this extraction and reuse it later. Simultaneously, the raffinate phase 13 allows the extracted liquid to flow out of the extraction tower body 11. When the liquid flows into the extraction tower body 11, the extractant phase 15 replenishes the material. The top of the feed inlet 23 penetrates the top wall of the feed tower 21, and the bottom of the feed inlet 23 penetrates the bottom wall of the feed tower 21 and extends to the inside of the feed pipe 24. The feed pipe 24 is used to add pentaerythritol mother liquor into the extraction tower body 11. The feed inlet 23 extends to the inside of the feed pipe 24, allowing the pentaerythritol mother liquor to flow directly into the feed pipe 24. Both the top and bottom ends of the feed pipe 24 are open. The outer wall of the feed pipe 24 away from the feed tower 21 is connected to a second assembly ring 25. The second assembly ring 25 is bolted to the first assembly ring 16. A sealing gasket is provided at the connection between the second assembly ring 25 and the first assembly ring 16. The second assembly ring 25 is used to connect with the first assembly ring 16, thereby realizing the assembly connection between the feed pipe 24 and the extraction tower body 11. When it is necessary to clean the feed pipe 24 and the pressure plate 34, the connection between the second assembly ring 25 and the first assembly ring 16 is released, and then the feed pipe 24 is separated from the extraction tower body 11. The hydraulic cylinder 31 is installed inside the feed tower 21 and electrically connected to the operation panel. The hydraulic cylinder 31 is also located inside the protection ring 22.The protective ring 22 is used to protect the hydraulic cylinder 31 inside the feed tower 21. The hydraulic cylinder 31 is used to push the pressure plate 34 to move. The sleeve 33 is installed at equal intervals along the length of the linkage rod 32. The top of the linkage rod 32 is fixedly connected to the output end of the hydraulic cylinder 31. After the hydraulic cylinder 31 is started, it works and pushes the linkage rod 32 to move up and down, thereby realizing the reciprocating motion of the sleeve 33 in the vertical direction. The top view cross-section of the mixing tank 35 is... The mixing tank 35 is arranged in a fan shape, with its depth matching the thickness of the pressure plate 34. When the raw material is added from the feed pipe 24, the hydraulic cylinder 31 drives the pressure plate 34 to reciprocate via the linkage rod 32. During this process, the raw material inside the feed pipe 24 is pressurized, and the raw material flows out through the mixing tank 35 opened in the pressure plate 34. The reciprocating motion of the pressure plate 34 further circulates and pressurizes the material, facilitating its flow into the extraction tower body 11 and the separation of the target product from the mother liquor.

[0036] The working principle of this invention is as follows: During use, pentaerythritol mother liquor enters the extraction tower body 11 through inlet 23. Raffinate 13 is used to recover any material not extracted in this extraction and reuse it. Simultaneously, raffinate 13 allows the extracted liquid to flow out of the extraction tower body 11. When the liquid flows into the extraction tower body 11, extractant 15 replenishes the material. Pentaerythritol mother liquor is added to the extraction tower body 11 through feed pipe 24. The feed inlet 23 extends to the inside of the feed pipe 24, allowing the pentaerythritol mother liquor to flow directly into the feed pipe 24. After the hydraulic cylinder 31 is activated, it operates and pushes the linkage rod 32 to reciprocate up and down, thereby achieving the reciprocating motion of the sleeve 33 in the vertical direction. When the raw material is added from the feed pipe 24, the hydraulic cylinder 31, through the linkage rod 32, drives the pressure plate 34 to reciprocate, pressurizing the raw material inside the feed pipe 24 during this process. The raw materials inside flow out through the mixing tank 35 opened in the pressure plate 34, and are circulated and pressurized by the reciprocating motion of the pressure plate 34, so that the raw materials can flow into the extraction tower body 11 and the target product can be separated from the mother liquor. The protective ring 22 is used to protect the hydraulic cylinder 31 in the feed tower 21. The hydraulic cylinder 31 is used to push the pressure plate 34 to move. The second assembly ring 25 is used to connect with the first assembly ring 16, so as to realize the assembly connection between the feed pipe 24 and the extraction tower body 11. When it is necessary to clean the feed pipe 24 and the pressure plate 34, the connection between the second assembly ring 25 and the first assembly ring 16 is released, and then the feed pipe 24 is separated from the extraction tower body 11. Based on liquid-liquid extraction technology, the target product is separated from the mother liquor by utilizing the difference in the distribution coefficient between two immiscible or partially miscible liquids. The base 12 is used to install and fix the extraction tower body 11.

[0037] It should be noted that, in this document, 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 a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of this utility model. These examples are merely for the purpose of helping to understand the method and core ideas of this utility model. The above descriptions are only preferred embodiments of this utility model. It should be pointed out that, due to the limitations of written expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or variations can be made without departing from the principles of this utility model, and the above technical features can be combined in an appropriate manner. These improvements, modifications, variations, or combinations, or the direct application of the concept and technical solution of this utility model to other situations without modification, should all be considered within the scope of protection of this utility model.

Claims

1. A pentaerythritol mother liquor extraction tower, comprising a tower body assembly (1), a feed assembly (2), and a pressurization assembly (3), wherein the tower body assembly (1) comprises an extraction tower body (11) and a first assembly ring (16), the feed assembly (2) comprises a feed tower (21), and the pressurization assembly (3) comprises a hydraulic cylinder (31), characterized in that: The lower wall of the extraction tower body (11) is connected to the raffinate phase (13), the lower wall of the extraction tower body (11) is connected to the extract phase (15), an extractant inlet (14) is provided between the raffinate phase (13) and the extract phase (15), a protective ring (22) is connected to the inner wall of the feed tower (21), a feed inlet (23) is provided on the inner side of the feed tower (21), a guide pipe (24) is connected to the lower end of the feed tower (21), a linkage rod (32) is connected to the output end of the hydraulic cylinder (31), a sleeve pipe (33) is connected to the outer wall of the linkage rod (32), a pressure plate (34) is connected to the outer wall of the sleeve pipe (33) away from the linkage rod (32), and a mixing tank (35) is opened on the inner side of the pressure plate (34).

2. The pentaerythritol mother liquor extraction tower according to claim 1, characterized in that: The lower end of the extraction tower body (11) is connected to a base (12), and the inner side of the base (12) is provided with threaded holes for fixing it.

3. The pentaerythritol mother liquor extraction tower according to claim 1, characterized in that: The extractant inlet (14) penetrates and is connected to the wall of the extraction tower body (11).

4. The pentaerythritol mother liquor extraction tower according to claim 1, characterized in that: The top of the feed inlet (23) penetrates the top wall of the feed tower (21), and the bottom of the feed inlet (23) penetrates the bottom wall of the feed tower (21) and extends to the inside of the feed guide pipe (24).

5. The pentaerythritol mother liquor extraction tower according to claim 1, characterized in that: The upper and lower ends of the feed pipe (24) are open. The outer wall of the feed pipe (24) away from the feed tower (21) is connected to a second assembly ring (25). The second assembly ring (25) is connected to the first assembly ring (16) by bolts. A sealing gasket is provided at the connection between the second assembly ring (25) and the first assembly ring (16).

6. The pentaerythritol mother liquor extraction tower according to claim 1, characterized in that: The hydraulic cylinder (31) is installed inside the feed tower (21) and electrically connected to the operation panel. The hydraulic cylinder (31) is also located inside the protection ring (22).

7. The pentaerythritol mother liquor extraction tower according to claim 1, characterized in that: The sleeve (33) is installed at equal intervals along the length of the linkage rod (32), and the top of the linkage rod (32) is fixedly connected to the output end of the hydraulic cylinder (31).

8. The pentaerythritol mother liquor extraction tower according to claim 1, characterized in that: The mixing tank (35) has a fan-shaped cross-section when viewed from above, and the depth of the mixing tank (35) is the same as the thickness of the pressure plate (34).

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