Pentaerythritol and dipentaerythritol precipitation separation device

Abstract

The utility model relates to a pentaerythritol and dipentaerythritol precipitation separation device. The pentaerythritol and dipentaerythritol precipitation separation device comprises a precipitation tank, a rack, a scraper conveyor and a separator, the scraper conveyor and the separator are mounted on the rack; the scraper conveyor is obliquely arranged, the bottom of the scraper conveyor is arranged at the bottom of the sedimentation tank, and the head of the scraper conveyor is a discharging end. The separator is arranged in the sedimentation tank, and the pentaerythritol and dipentaerythritol precipitation mixed solution enters the sedimentation tank through the separator; an overflow groove is formed in the top of the sedimentation tank. According to the device, pentaerythritol and dipentaerythritol precipitation mixed liquor is stirred to be in a suspended state through a separator arranged in a precipitation tank, dipentaerythritol is floated and overflows to a collecting tank through an overflow tank to be subjected to the next process, and monopentaerythritol with large particles is precipitated and a small amount of attached dipentaerythritol and impurities are output through a scraper conveyor. And the separation of the pentaerythritol and the dipentaerythritol is realized.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a pentaerythritol and dipentaerythritol precipitation separation device. Background Technology

[0002] In fields such as fine chemicals, pharmaceutical manufacturing, and environmental engineering, it is often necessary to separate solid particles from liquids. These particles may be formed due to crystallization reactions, precipitation reactions, or other physicochemical processes, such as separating precipitated particles of a mixture of pentaerythritol and dipentaerythritol from a crystallization solution.

[0003] Existing methods for separating precipitation in mixed liquors mainly involve filtering the liquor. This requires passing the entire liquor through a filtration system and continuously collecting the precipitate. The collected precipitate is then separated into pentaerythritol and dipentaerythritol precipitates using sieves of different diameters. As can be seen, the existing methods for separating pentaerythritol and dipentaerythritol precipitates are complex, resulting in high labor and material costs, which in turn increases industrial production costs. Utility Model Content

[0004] Based on the above description, this utility model provides a pentaerythritol and dipentaerythritol precipitation separation device to solve the technical problem of the complex process of existing pentaerythritol and dipentaerythritol precipitation separation methods.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0006] A precipitation and separation device for pentaerythritol and dipentaerythritol includes: a precipitation tank, a frame, a scraper conveyor, and a separator;

[0007] The scraper conveyor and separator are mounted on the frame;

[0008] The scraper conveyor is inclined, the bottom of the scraper conveyor is located at the bottom of the sedimentation tank, and the head of the scraper conveyor is the discharge end;

[0009] The separator is installed in the sedimentation tank, and the mixture of pentaerythritol and dipentaerythritol precipitates enters the sedimentation tank through the separator.

[0010] An overflow trough is provided at the top of the sedimentation tank.

[0011] Based on the above technical solution, the present invention can be further improved as follows.

[0012] Furthermore, the separator includes: a tank and a stirrer;

[0013] The tank has a feed inlet at the top and a discharge outlet at the bottom; the agitator is mounted on the tank, and the agitator blades are located inside the tank.

[0014] Furthermore, the stirrer is an electric stirrer.

[0015] Furthermore, the stirring shaft of the stirrer is distributed with multiple sets of stirring blades along its length, each set containing at least one stirring blade.

[0016] Furthermore, the tilt angle of the scraper conveyor is 45°-60°.

[0017] Furthermore, the tilt angle of the scraper conveyor is 50°.

[0018] Compared with the prior art, the technical solution of this utility model has the following beneficial technical effects:

[0019] This utility model provides a pentaerythritol and dipentaerythritol precipitation separation device, in which a scraper conveyor and a separator are mounted on a frame. The scraper conveyor is inclined, with its bottom positioned at the bottom of the sedimentation tank and its head serving as the discharge end. The separator is located inside the sedimentation tank, through which the pentaerythritol and dipentaerythritol precipitate mixture enters the sedimentation tank. An overflow trough is provided at the top of the sedimentation tank. This device uses the separator within the sedimentation tank to agitate the pentaerythritol and dipentaerythritol precipitate mixture into a suspended state. The upper layer of dipentaerythritol overflows through the overflow trough to a collection tank for the next process. The larger single-particle pentaerythritol precipitate and a small amount of attached dipentaerythritol and impurities are output via the scraper conveyor, thus achieving the separation of pentaerythritol and dipentaerythritol. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the pentaerythritol and dipentaerythritol precipitation separation device provided in an embodiment of the present invention;

[0021] Figure 2 This is a top view of the pentaerythritol and dipentaerythritol precipitation separation device provided in an embodiment of the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Sedimentation tank, 2-Frame, 3-Scraper conveyor, 4-Separator. Detailed Implementation

[0024] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0026] It is understood that spatial relation terms such as "below," "under," "below," "below," "above," "above," etc., can be used here to describe the relationship between one element or feature shown in the figure and other elements or features. It should be understood that, in addition to the orientation shown in the figure, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figure is flipped, the element or feature described as "below" or "below" of the other element or feature will be oriented "above" the other element or feature. Therefore, the exemplary terms "below" and "below" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein will be interpreted accordingly.

[0027] It should be noted that when one element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediary element.

[0028] When used herein, the singular forms of “a,” “an,” and “the” may also include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising,” “including,” or “having,” etc., specify the presence of the stated feature, whole, step, operation, component, part, or combination thereof, but do not preclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts, or combinations thereof.

[0029] See Figure 1 and Figure 2 This invention provides a precipitation and separation device for pentaerythritol and dipentaerythritol, comprising: a precipitation tank 1, a frame 2, a scraper conveyor 3, and a separator 4. The positions and functions of each component are as follows:

[0030] The scraper conveyor 3 and separator 4 are mounted on the frame 2. The frame 2 is typically made of high-strength steel to withstand the load during scraper conveyor operation. The frame 2 is generally divided into an upper frame and a lower frame to support the scraper chain and other mechanical components. The scraper conveyor mainly consists of a scraper chain, scrapers, a drive unit, guide rails, and a tensioning device. Power transmission and material conveying are primarily accomplished through the scraper chain. The chain consists of multiple links, with scrapers fixed on each link. The scrapers, through the traction motion of the chain, transport the material forward. The scrapers are the core component of the scraper conveyor, fixed to the chain. The scrapers have a certain inclination angle, and through contact with the conveyed material, they push the material along the scraper conveyor's track. The drive unit of the scraper conveyor typically consists of a motor, a reducer, and sprockets. The motor drives the chain to rotate through the reducer, thus enabling the scraper conveyor to operate. Guide rails are used to support and guide the movement of the scraper chain and are usually installed on both sides of the scraper conveyor to ensure smooth operation of the scraper chain. To ensure chain tension, scraper conveyors are usually equipped with tensioning devices, which can maintain stable chain operation by adjusting the chain tension.

[0031] The scraper conveyor 3 is inclined, and the inclination angle of the scraper conveyor 3 is 45°-60°. For example, in this embodiment, the inclination angle of the scraper conveyor 3 is set to 50°.

[0032] The bottom of the scraper conveyor 3 is located at the bottom of the sedimentation tank 1, and the head of the scraper conveyor 3 is the discharge end. The separator 4 is located inside the sedimentation tank 1, and the mixture of pentaerythritol and dipentaerythritol precipitates enters the sedimentation tank 1 through the separator 4. An overflow trough is provided at the top of the sedimentation tank 1.

[0033] In a preferred embodiment provided by this utility model, see [link to previous embodiment]. Figure 1 The separator 4 includes a tank and an agitator. The tank has an inlet at the top and an outlet at the bottom. The agitator is mounted on the tank, and its blades are located inside the tank. The agitator is electrically powered. Multiple sets of blades are distributed along the length of the agitator shaft, each set containing at least one blade. The multiple sets of blades improve the uniformity of mixing the pentaerythritol and dipentaerythritol precipitate mixture in the separator 4.

[0034] See Figure 1 and Figure 2 The working process of the pentaerythritol and dipentaerythritol precipitation separation device provided in this embodiment of the invention is as follows: the pentaerythritol and dipentaerythritol precipitation mixture is transported to the inlet of the tank, the agitator is turned on, and the mixture is stirred by gears. The stirred mixture is then transported to the sedimentation tank 1 through the outlet of the tank. After stirring, the mixture in the sedimentation tank 1 is in a suspended state. The upper layer of dipentaerythritol particles is discharged through the overflow trough, and the lower layer of pentaerythritol particles is discharged through the scraper conveyor 3.

[0035] See Figure 1 and Figure 2 The technical solution provided by this utility model embodiment has the following beneficial effects or advantages:

[0036] The pentaerythritol and dipentaerythritol precipitation separation device provided in this embodiment of the invention comprises a scraper conveyor 3 and a separator 4 mounted on a frame 2. The scraper conveyor 3 is inclined, with its bottom positioned at the bottom of the sedimentation tank 1 and its head serving as the discharge end. The separator 4 is located within the sedimentation tank 1, through which the pentaerythritol and dipentaerythritol precipitation mixture enters the sedimentation tank 1. An overflow trough is provided at the top of the sedimentation tank 1. This device uses the separator 4 within the sedimentation tank 1 to stir the pentaerythritol and dipentaerythritol precipitation mixture into a suspended state. The upper layer of dipentaerythritol particles overflows through the overflow trough to a collection tank for the next process. The larger single pentaerythritol precipitates and a small amount of attached dipentaerythritol and impurities are output through the scraper conveyor 3, thus achieving the separation of pentaerythritol and dipentaerythritol.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for precipitating and separating pentaerythritol and dipentaerythritol, characterized in that: include: Sedimentation tank, frame, scraper conveyor and separator; The scraper conveyor and separator are mounted on the frame; The scraper conveyor is inclined, the bottom of the scraper conveyor is located at the bottom of the sedimentation tank, and the head of the scraper conveyor is the discharge end; The separator is installed in the sedimentation tank, and the mixture of pentaerythritol and dipentaerythritol precipitates enters the sedimentation tank through the separator. An overflow trough is provided at the top of the sedimentation tank.

2. The pentaerythritol and dipentaerythritol precipitation separation device according to claim 1, characterized in that: The separator includes: a tank and a stirrer; The tank has a feed inlet at the top and a discharge outlet at the bottom; the agitator is mounted on the tank, and the agitator blades are located inside the tank.

3. The pentaerythritol and dipentaerythritol precipitation separation device according to claim 2, characterized in that: The mixer is an electric mixer.

4. The pentaerythritol and dipentaerythritol precipitation separation device according to claim 2, characterized in that: The stirring shaft of the stirrer is distributed with multiple sets of stirring blades along its length, and each set contains at least one stirring blade.

5. The pentaerythritol and dipentaerythritol precipitation separation device according to claim 1, characterized in that: The inclination angle of the scraper conveyor is 45°-60°.

6. The pentaerythritol and dipentaerythritol precipitation separation apparatus according to claim 5, characterized in that: The scraper conveyor has an inclination angle of 50°.

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