Chemical engineering extraction and separation device

Abstract

The utility model relates to the technical field of extraction devices, in particular to a chemical engineering extraction and separation device which comprises an extraction barrel, a stirring mechanism arranged at the upper part in the extraction barrel, and a filtering mechanism for filtering an extracted solution, the filtering mechanism is positioned at the lower part in the extraction barrel, and a filter screen is arranged below a blanking pipe. And a shunting assembly for uniformly shunting and filtering the extracted solution is arranged in the discharging pipe. The device has the beneficial effects that impurities in an extracted solution are filtered and separated through a filter screen in the filtering mechanism, and when the central position of the filter screen is blocked and the filtering efficiency is reduced, the extracted solution is distributed to the periphery of the filter screen by utilizing the shunting assembly, so that the solution is uniformly distributed on the filter screen, and the utilization rate of the filter screen is further improved; the filtering pressure at the central position of the filter screen is relieved, the overall filtering efficiency of the filter screen is improved, and the filtering quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extraction devices, in particular to a chemical engineering extraction and separation device. Background Art

[0002] In chemical engineering, there are often scenarios where mixed solvents need to be separated. For this scenario, the most commonly used method is extraction. Extraction is an operation to separate a mixture, also known as solvent extraction or liquid-liquid extraction. It is a method of transferring a solute from one solvent to another by utilizing the difference in solubility or distribution coefficient of a substance in two immiscible (or slightly soluble) solvents.

[0003] By comparing with a chemical engineering extraction and separation device with patent announcement number CN219440840U, in this scheme, the scraper scrapes the liquid inlet side of the filter element to clean the filter element, avoiding the accumulation of impurities on the liquid inlet side of the filter element, preventing the impurities from being stacked on the filter element, and allowing the filter element to maintain maximum flux through the gaps in the solvent. However, since the filter plate is V-shaped, a large amount of impurities in the solution may accumulate in the center of the filter plate, thereby greatly reducing the amount of solution flowing on both sides of the filter plate, increasing the filtration pressure at the center of the filter plate, reducing the utilization rate of both sides of the filter plate, reducing the filtration efficiency, and reducing the filtration quality. Utility Model Content

[0004] The purpose of the utility model is to provide a chemical engineering extraction and separation device in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A chemical engineering extraction and separation device comprises an extraction cylinder, wherein a stirring mechanism is arranged above the interior of the extraction cylinder, and further comprises a filtering mechanism for filtering a solution after extraction, wherein the filtering mechanism is located at the interior lower part of the extraction cylinder;

[0007] The filtering mechanism includes a feed funnel arranged at the lower part of the extraction cylinder, a feed pipe is fixed at the lower end of the feed funnel, a solenoid valve is installed at the upper end of the feed pipe, a filter is provided at the bottom of the feed pipe, a reset spring is connected between the bottom end of the filter and the inner wall of the extraction cylinder, and a diversion component is provided in the feed pipe for uniformly diverting and filtering the extracted solution.

[0008] Preferably: the diversion component includes a sliding plate slidably arranged inside the discharge pipe, a compression spring is connected between the bottom end of the sliding plate and the inner wall of the discharge pipe, a circular discharge groove is opened at the center of the sliding plate, a partition is fixed at the center of the circular discharge groove, a pull rod is slidably installed at the center of the partition, the bottom end of the pull rod is fixed to the filter screen, a sealing block is fixed at the upper end of the pull rod, the sealing block is a cone with the tip facing upward, a downward pressure spring is connected between the sealing block and the partition, the elastic potential energy of the downward pressure spring is smaller than the elastic potential energy of the compression spring, a plurality of square discharge grooves are arranged around the side wall of the discharge pipe, and the square discharge grooves are located below the sliding plate.

[0009] Preferably, the stirring mechanism comprises a stirring shaft rotatably arranged above the interior of the extraction cylinder, a stirring motor is installed at the rotating end of the stirring shaft, and a stirring blade is arranged at the center of the stirring shaft.

[0010] Preferably: the blocking block and the pull rod are both made of corrosion-resistant materials.

[0011] Preferably: scrapers are provided on both upper and lower sides of the stirring shaft.

[0012] Preferably: a feed pipe is installed at the upper end of the extraction cylinder, and a discharge pipe is installed at the lower end.

[0013] Compared with the prior art, the beneficial effects are as follows:

[0014] The impurities in the extracted solution are filtered and separated through the filter in the filtering mechanism. When the center of the filter is clogged and the filtering efficiency is reduced, the diversion component is used to distribute the extracted solution around the filter so that the solution is evenly distributed on the filter, thereby improving the utilization rate of the filter, alleviating the filtering pressure at the center of the filter, improving the overall filtering efficiency of the filter, and improving the filtering quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is a spatial stereogram of a chemical engineering extraction and separation device described in the utility model;

[0017] Figure 2 It is a structural cross-sectional view of the interior of an extraction cylinder of a chemical engineering extraction and separation device described in the utility model;

[0018] Figure 3 yes Figure 2 A partial enlarged view of the middle A;

[0019] Figure 4 The utility model is a schematic diagram of the structure between the filter screen and the feed pipe of a chemical engineering extraction and separation device.

[0020] The following are the descriptions of the reference numerals:

[0021] 100, extraction cylinder; 201, discharge funnel; 202, filter screen; 203, discharge pipe; 204, solenoid valve; 205, sliding plate; 206, discharge circular groove; 207, blocking block; 208, downward pressure spring; 209, partition; 210, compression spring; 211, pull rod; 212, return spring; 213, discharge square groove; 301, stirring shaft; 302, stirring motor; 303, stirring blade; 304, scraper; 305, feed pipe; 306, discharge pipe. DETAILED DESCRIPTION

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0023] The utility model is further described below in conjunction with the accompanying drawings:

[0024] like Figure 1-Figure 4 As shown, a chemical engineering extraction and separation device includes an extraction cylinder 100, a stirring mechanism for stirring and mixing a solution, the stirring mechanism is located above the interior of the extraction cylinder 100, and a filtering mechanism for filtering the extracted solution, the filtering mechanism is located below the interior of the extraction cylinder 100.

[0025] In this embodiment: the stirring mechanism includes a stirring shaft 301 rotatably arranged above the inside of the extraction cylinder 100, a stirring motor 302 is installed at the rotating end of the stirring shaft 301, a stirring blade 303 is provided at the center of the stirring shaft 301, and scrapers 304 are provided on the upper and lower sides of the stirring shaft 301. A feeding pipe 305 is installed at the upper end of the extraction cylinder 100, and a discharging pipe 306 is installed at the lower end.

[0026] In this embodiment: the filtering mechanism includes a feed funnel 201 arranged at the lower part of the extraction cylinder 100, a feed pipe 203 is fixed at the lower end of the feed funnel 201, a solenoid valve 204 is installed at the upper end of the feed pipe 203, a filter screen 202 is provided below the feed pipe 203, a return spring 212 is connected between the bottom end of the filter screen 202 and the inner wall of the extraction cylinder 100, and a diversion component for uniformly diverting and filtering the extracted solution is provided in the feed pipe 203.

[0027] The flow diversion component includes a sliding plate 205 slidably arranged inside the feed tube 203, a compression spring 210 is connected between the bottom end of the sliding plate 205 and the inner wall of the feed tube 203, a feed circular groove 206 is opened at the center of the sliding plate 205, a partition 209 is fixed at the center of the feed circular groove 206, a pull rod 211 is slidably installed at the center of the partition 209, the bottom end of the pull rod 211 is fixed to the filter screen 202, a blocking block 207 is fixed to the upper end of the pull rod 211, the blocking block 207 is a cone with the tip facing upward, a downward pressure spring 208 is connected between the blocking block 207 and the partition 209, and the elastic potential energy of the downward pressure spring 208 is less than the elastic potential energy of the compression spring 210. Potential energy, a plurality of square feeding grooves 213 are arranged around the side wall of the feeding pipe 203, and the square feeding grooves 213 are located below the sliding plate 205, and the blocking block 207 and the pull rod 211 are both made of corrosion-resistant materials, and the impurities in the extracted solution are filtered and separated through the filter screen 202 in the filtering mechanism. When the center position of the filter screen 202 is blocked and the filtration efficiency is reduced, the diversion component is used to distribute the extracted solution to the four sides of the filter screen 202, so that the solution is evenly distributed on the filter screen 202, thereby improving the utilization rate of the filter screen 202, alleviating the filtration pressure at the center position of the filter screen 202, improving the overall filtration efficiency of the filter screen 202, and improving the filtration quality.

[0028] Working principle: First, pour the solution to be extracted into the extraction cylinder 100 through the feed pipe 305, drive the stirring motor 302 to drive the stirring shaft 301 to rotate, and then drive the stirring blades 303 to stir the solution evenly. While the stirring shaft 301 rotates, it also drives the scrapers 304 on the upper and lower sides to rotate, and the solution remaining on the inner wall of the extraction cylinder 100 is scraped into the extraction cylinder 100.

[0029] The stirred solution remains in the discharge funnel 201, and the solenoid valve 204 at the upper end of the discharge pipe 203 is used to control the flow of the extracted solution in the discharge pipe 203. The solution flows downward through the discharge circular groove 206 at the center of the sliding plate 205 and falls on the center of the filter screen 202. The filter screen 202 is used to filter and separate the impurities in the solution, and then flows out through the discharge pipe 306 at the lower end of the extraction cylinder 100 for collection.

[0030] As more and more impurities are filtered at the center of the filter screen 202, the flow rate of the solution through the filter screen 202 is reduced. As the impurities accumulate, the filter screen 202 is prompted to move downward, thereby driving the pull rod 211 to move downward, driving the blocking block 207 at the upper end of the pull rod 211 to move downward to the feeding circular groove 206, and using the blocking block 207 to block the feeding circular groove 206, thereby preventing the solution from flowing downward through the feeding circular groove 206. After the blocking block 207 blocks the feeding circular groove 206, as the amount of solution increases, the sliding plate 20 is pressed. 5 moves downward, causing the sliding plate 205 to move to the feeding square groove 213. When the upper end of the sliding plate 205 is flush with the bottom end of the feeding square groove 213, the feeding square groove 213 is in a flow state, and then the solution flows downward through the multiple feeding square grooves 213 and flows to the surroundings of the filter screen 202, so that the surrounding parts of the filter screen 202 are used to filter the solution again, thereby improving the utilization rate of the filter screen 202, relieving the filtering pressure at the center of the filter screen 202, improving the overall filtering efficiency of the filter screen 202, and improving the filtering quality.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A chemical engineering extraction and separation device, comprising an extraction cylinder (100), wherein a stirring mechanism is arranged on the upper part of the extraction cylinder (100), characterized in that: It also includes a filtering mechanism for filtering the extracted solution, the filtering mechanism being located at the lower part of the extraction cylinder (100); The filtering mechanism comprises a feed hopper (201) arranged at the lower part of the extraction cylinder (100); a feed pipe (203) is fixed at the lower end of the feed hopper (201); a solenoid valve (204) is installed at the upper end of the feed pipe (203); a filter screen (202) is provided below the feed pipe (203); a return spring (212) is connected between the bottom end of the filter screen (202) and the inner wall of the extraction cylinder (100); and a flow diversion component for evenly diverting and filtering the extracted solution is provided inside the feed pipe (203).

2. A chemical engineering extraction separation device according to claim 1, characterized in that: The flow diversion component comprises a sliding plate (205) slidably arranged inside the discharge pipe (203), a compression spring (210) is connected between the bottom end of the sliding plate (205) and the inner wall of the discharge pipe (203), a discharge circular groove (206) is opened at the center of the sliding plate (205), a partition (209) is fixed at the center of the discharge circular groove (206), a pull rod (211) is slidably installed at the center of the partition (209), and the bottom end of the pull rod (211) is connected to the filter screen (202). ) are fixed to each other, a blocking block (207) is fixed to the upper end of the pull rod (211), the blocking block (207) is a cone with the tip facing upward, a downward pressure spring (208) is connected between the blocking block (207) and the partition (209), the elastic potential energy of the downward pressure spring (208) is smaller than the elastic potential energy of the compression spring (210), and a plurality of square grooves (213) for material discharge are arranged around the side wall of the material discharge pipe (203), and the square grooves (213) for material discharge are located below the sliding plate (205).

3. A chemical engineering extraction separation device according to claim 2, characterized in that: The stirring mechanism comprises a stirring shaft (301) rotatably arranged above the interior of the extraction cylinder (100), a stirring motor (302) being mounted on the rotating end of the stirring shaft (301), and a stirring blade (303) being disposed at the center of the stirring shaft (301).

4. A chemical engineering extraction separation device according to claim 3, characterized in that: The blocking block (207) and the pull rod (211) are both made of corrosion-resistant materials.

5. A chemical engineering extraction separation device according to claim 4, characterized in that: Scrapers (304) are provided on both the upper and lower sides of the stirring shaft (301).

6. A chemical engineering extraction separation device according to claim 5, characterized in that: The upper end of the extraction cylinder (100) is provided with a feed pipe (305), and the lower end is provided with a discharge pipe (306).

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