DTB type crystallizer

Abstract

The utility model discloses a DTB type crystallizer. The DTB type crystallizer comprises a main body, a condenser and a heating assembly, an elutriation column is arranged at the bottom of the main body, a lifting plate is arranged in the elutriation column in a sliding and sealing mode, a connecting piece is installed on the lifting plate, a metal ball capable of floating in feed liquid is installed at the top end of the connecting piece, the metal ball is located in the main body, and the condenser is arranged in the main body. And crystals precipitated in the elutriation column fall on the lifting plate, an annular electromagnet is arranged in the elutriation column, the crystals precipitated in the main body penetrate through the annular electromagnet and fall above the lifting plate, and when the metal ball moves downwards to a certain distance, the metal ball is in contact with the annular electromagnet, and the annular electromagnet attracts the metal ball. According to the DTB type crystallizer provided by the utility model, in the process of extracting crystals in an elutriation column, feed liquid which is not fully crystallized in the main body cannot enter the elutriation column, so that excessive feed liquid which is not fully crystallized is prevented from being extracted, and the feed liquid can be fully crystallized.

Description

Technical Field

[0001] This utility model relates to the field of crystallizer technology, and in particular to a DTB type crystallizer. Background Technology

[0002] The DTB-type crystallizer is a typical internal circulation crystallizer. Because an internal guide tube is installed in the crystallizer, a circulation channel is formed, providing excellent mixing conditions for the crystal slurry. Only a very low pressure head is needed to achieve good internal circulation within the crystallizer.

[0003] Traditional DTB crystallizers mainly consist of a main body 1, a condenser 2, and a heating assembly 3 (such as...). Figure 1 The structure consists of three parts (as shown in the figure). The bottom of the main body 1 is equipped with a precipitating column 4, which contains crystallized crystals and liquid material. The two are in a mixed state. Compared with other parts inside the main body 1, the crystal density here is higher. When the crystals settle to a certain amount, the external extraction device will extract the crystals in the precipitating column 4 to make room for more crystals to settle in the precipitating column 4.

[0004] However, when the traditional DTB crystallizer extracts crystals from inside the elution column 4, since the elution column 4 is connected to the main body 1, a large amount of liquid will inevitably be extracted, resulting in some liquid being discharged from the main body 1 before it can be fully crystallized, which is not conducive to the full crystallization of the liquid.

[0005] Therefore, it is necessary to provide a DTB-type crystallizer to solve the above-mentioned technical problems. Utility Model Content

[0006] In view of the above situation and to overcome the defects of the prior art, this utility model provides a DTB crystallizer in which, during the process of extracting crystals from the eluent column, the insufficiently crystallized liquid in the main body will not enter the eluent column, thus avoiding the extraction of too much insufficiently crystallized liquid and promoting the full crystallization of the liquid.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A DTB-type crystallizer includes a main body, a condenser, and a heating assembly. A precipitation column is located at the bottom of the main body. A lifting plate is slidably sealed inside the precipitation column. A connector is mounted on the lifting plate, and a metal ball capable of floating in the feed liquid is mounted at the top of the connector. The metal ball is located inside the main body. Crystals precipitated in the precipitation column fall onto the lifting plate. A ring-shaped electromagnet is installed inside the precipitation column. Crystals precipitated in the main body pass through the ring-shaped electromagnet and fall above the lifting plate. When the metal ball moves downwards a certain distance, it contacts the ring-shaped electromagnet, attracting the metal ball and blocking it. At this point, the metal ball severs the connection between the precipitation column and the main body, preventing precipitated crystals and feed liquid from entering the precipitation column. The crystals and feed liquid in the precipitation column can then be extracted.

[0009] Preferably, a spring is provided at the bottom of the analysis column, and the spring is fixed to the bottom of the lifting plate. When the number of crystals on the upper part of the lifting plate increases, it will gradually move downward and compress the spring. When the crystals on the upper part of the lifting plate are extracted, the spring will gradually release its elasticity and push the lifting plate upward.

[0010] Preferably, a sensor is installed at the bottom of the crystallization column, and the DTB crystallizer also includes a controller. The sensor is electrically connected to the controller, and the controller is electrically connected to the annular electromagnet. When the lifting plate moves downward and contacts the sensor, the sensor transmits a signal to the controller, which then activates the annular electromagnet, making it magnetic and thus able to attract the metal ball. When the lifting plate moves upward and separates from the sensor, the controller is still in the state of activating the annular electromagnet. After the annular electromagnet has been working for 3 minutes (the time can be set according to actual needs), the controller cuts off the power supply to the annular electromagnet. At this time, the metal ball separates from the annular electromagnet.

[0011] Preferably, the connector is a flexible steel wire rope with an anti-corrosion coating on its surface.

[0012] Preferably, the metal sphere is a hollow iron sphere with an anti-corrosion layer on the outside.

[0013] Preferably, the upper opening of the annular electromagnet is provided with a slanted opening structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) After the metal ball of this utility model comes into close contact with the annular electromagnet, it cuts off the connection between the precipitating column and the main body, so that the crystals and liquid precipitated in the main body cannot enter the precipitating column. Therefore, during the process of extracting crystals in the precipitating column, the liquid that has not been fully crystallized in the main body will not enter the precipitating column, thus avoiding the extraction of too much liquid that has not been fully crystallized, which is conducive to the full crystallization of the liquid.

[0016] (2) In this utility model, after the crystal on the upper part of the lifting plate is pulled out, the spring gradually releases its elasticity, pushing the lifting plate upward, thereby making as many crystals as possible on the lifting plate be pulled out.

[0017] (3) The combination of the sensor, controller and annular electromagnet in this utility model enables the metal ball to cut off the connection between the main body and the slurry column within a specified time period, thereby ensuring that the external equipment has enough time to extract the crystal in the slurry column. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an existing DTB-type crystallizer;

[0019] Figure 2 A cross-sectional structural diagram of the main body of the DTB-type crystallizer provided by this utility model;

[0020] Figure 3 This is a schematic diagram of a portion of the structure of the DTB-type crystallizer provided by this utility model;

[0021] Figure 4 This is a schematic diagram of a portion of the structure of the DTB-type crystallizer provided by this utility model;

[0022] Figure 5 This is a block diagram illustrating the principle of a controller controlling an electromagnet.

[0023] The corresponding names of the attached figures are: main body-1, condenser-2, heating component-3, precipitator column-4, lifting plate-5, connector-6, metal ball-7, annular electromagnet-8, spring-9, sensor-10. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0025] Example 1

[0026] like Figure 1-5As shown, the DTB-type crystallizer provided by this utility model includes: a main body 1, a condenser 2, and a heating assembly 3. A precipitation column 4 is provided at the bottom of the main body 1. A lifting plate 5 is slidably sealed inside the precipitation column 4. A connector 6 is installed on the lifting plate 5. A metal ball 7 capable of floating in the liquid is installed at the top of the connector 6, and the metal ball 7 is located inside the main body 1. The crystals precipitated in the precipitation column 4 fall onto the lifting plate 5. As the amount of crystals gradually increases, the lifting plate 5 gradually moves downward, thereby driving the metal ball 7 downward through the connector 6. An annular electromagnetic device is provided inside the precipitation column 4. Iron 8, the crystals precipitated in the main body 1 pass through the annular electromagnet 8 and fall above the lifting plate 5. When the metal ball 7 moves down a certain distance and comes into contact with the annular electromagnet 8, the annular electromagnet 8 attracts the metal ball 7, causing the metal ball 7 to block the annular electromagnet 8. At this time, the metal ball 7 cuts off the connection between the washing column 4 and the main body 1, preventing the crystals precipitated in the main body 1 and the liquid from entering the washing column 4. At this time, the crystals and liquid in the washing column 4 can be extracted. During the extraction process, the liquid that has not been fully crystallized in the main body 1 will not enter the washing column 4, avoiding the extraction of too much liquid that has not been fully crystallized, thus facilitating the full crystallization of the liquid.

[0027] Example 2

[0028] like Figure 3-4 As shown, a spring 9 is provided at the bottom of the washing column 4. The spring 9 is fixed to the bottom of the lifting plate 5. When the number of crystals on the upper part of the lifting plate 5 increases, it will gradually move downward and compress the spring 9. When the crystals on the upper part of the lifting plate 5 are extracted, the spring 9 gradually releases its elasticity and pushes the lifting plate 5 upward. The upward movement of the lifting plate 5 can push the crystals located on it upward, thereby allowing as many crystals as possible to be extracted from the lifting plate 5.

[0029] Example 3

[0030] like Figure 4-5 As shown, a sensor 10 is installed at the bottom of the crystallization column 4. The sensor 10 is a contact sensor. The DTB crystallizer also includes a controller, which is an MCU. The sensor 10 is electrically connected to the controller, and the controller is electrically connected to the annular electromagnet 8. When the lifting plate 5 moves downward and contacts the sensor, the sensor transmits a signal to the controller. The controller then activates the annular electromagnet 8, making it magnetic, so that the annular electromagnet 8 can attract the metal ball 7. When the lifting plate 5 moves upward and separates from the sensor, the controller is still in the state of activating the annular electromagnet 8. After the annular electromagnet 8 has been working for 3 minutes (the time can be set according to actual needs), the controller cuts off the power supply to the annular electromagnet 8. At this time, the metal ball 7 separates from the annular electromagnet 8 and moves upward under buoyancy, so that the crystal continues to enter the crystallization column 4.

[0031] Example 4

[0032] The connector 6 is a flexible steel wire rope with an anti-corrosion layer on the outside. The use of a flexible steel wire rope allows the metal ball 7 to be firmly attracted by the annular electromagnet 8 when the lifting plate 5 moves upward, thereby allowing as many crystals as possible to be extracted from the inside of the precipitating column 4. The anti-corrosion layer protects the steel wire rope and prevents it from being corroded by the liquid material.

[0033] Example 5

[0034] The metal ball 7 is a hollow iron ball with an anti-corrosion layer on the outside. The hollow iron ball ensures that it can be attracted by the annular electromagnet 8 and has a certain buoyancy. After it separates from the annular electromagnet 8, it can float upward under the action of buoyancy. The anti-corrosion layer protects the metal ball 7 and prevents it from being corroded by the liquid.

[0035] Example 6

[0036] like Figure 3 As shown, an oblique opening structure is provided at the upper opening of the annular electromagnet 8. The oblique opening structure allows the metal ball 7 to form a good blocking effect after contacting the oblique opening structure, thereby preventing the liquid and crystals in the main body 1 from entering the washing column 4.

[0037] Working principle:

[0038] In use, after the crystals in the liquid in the main body 1 crystallize, they precipitate into the eluent column 4. When the amount of crystals precipitated in the eluent column 4 reaches a certain level, the lifting plate 5 moves downward. The downward movement of the lifting plate 5 drives the metal ball 7 downward through the connecting piece 6. At the same time, the lifting plate 5 compresses the spring 9 and contracts. When the lifting plate 5 moves downward and comes into contact with the sensor, the metal ball 7 is also in close contact with the annular electromagnet 8. When the sensor comes into contact with the lifting plate 5, the sensor sends a signal to the controller. The controller processes the signal and activates the annular electromagnet 8. After the annular electromagnet 8 is activated, it attracts the metal ball 7. At this time, the external extraction device extracts the crystals and liquid from the eluent column 4. As the liquid and crystal components decrease, the spring 9 releases its elasticity, pushing the lifting plate 5 upward. At this time, the metal ball 7 is still attracted by the annular electromagnet 8. After the external extraction device extracts the crystals from the eluent column 4 for 3 minutes, the controller disconnects the power supply to the annular electromagnet 8, causing it to lose its magnetism. At this time, the metal ball 7 moves upward under the action of buoyancy and returns to its initial position.

[0039] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. A DTB-type crystallizer, characterized in that, include: The main body (1), condenser (2) and heating assembly (3) are provided. A slurry column (4) is provided at the bottom of the main body (1). A lifting plate (5) is provided inside the slurry column (4). A connector (6) is installed on the lifting plate (5). A metal ball (7) that can float in the liquid is installed at the top of the connector (6). The metal ball (7) is located inside the main body (1). A ring electromagnet (8) is provided inside the slurry column (4).

2. The DTB-type crystallizer according to claim 1, characterized in that, A spring (9) is provided at the bottom of the analysis column (4), and the spring (9) is fixed to the bottom of the lifting plate (5).

3. A DTB-type crystallizer according to claim 1, characterized in that, A sensor (10) is installed at the bottom of the crystallization column (4). The DTB crystallizer also includes a controller. The sensor (10) is electrically connected to the controller, and the controller is electrically connected to the annular electromagnet (8).

4. A DTB-type crystallizer according to claim 1, characterized in that, The connector (6) is a flexible steel wire rope with an anti-corrosion layer on its surface.

5. A DTB-type crystallizer according to claim 1, characterized in that, The metal ball (7) is a hollow iron ball with an anti-corrosion layer on the outside.

6. A DTB-type crystallizer according to claim 1, characterized in that, An oblique opening structure is provided at the upper opening of the annular electromagnet (8).

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