Anti-blocking discharging device of crystallization kettle
By installing a filter with a streamlined slope feed section and a curved stop section on the discharge port of the crystallization kettle, the problem of blockage in the barbituric acid crystallization process is solved, the continuity and smoothness of the discharge are achieved, and the production efficiency is improved.
Patent Information
- Application Number
- CN202421366761.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-06-14
AI Technical Summary
During the crystallization of barbituric acid, the material blocks are prone to gather at the discharge port and cause blockage, or enter the pipeline to block the discharge pipe, resulting in unstable discharge.
A crystal kettle anti-blocking discharge device is designed, including covering a filter net on the discharge port of the crystal kettle. The filter net has a streamlined slope feed section and an arc-shaped stop section. The blocks are intercepted through these structures and collected them to the bottom cleaning port using the centrifugal force generated by stirring.
It effectively avoids abnormal situations such as blocking of the discharge pipe and the feeding pump, ensuring the continuity and smoothness of the discharge process, and improving production efficiency.
Smart Images
Figure CN222657813U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of chemical production, and in particular relates to an anti-blocking discharge device for a barbituric acid continuous crystallization kettle. Background Art
[0002] Barbituric acid is an important organic chemical raw material and also an important dye intermediate. During the production process, the material has achieved continuous crystallization, but agglomeration is inevitable during the crystallization process. During the discharge process, these agglomerates often gather at the discharge port to cause blockage, or enter the pipeline to block the discharge pipe, causing unstable discharge. Utility Model Content
[0003] The utility model provides a crystallization kettle anti-blocking discharge device, which aims to solve the problem of unstable discharge caused by blockage of the discharge port at the bottom of the crystallization kettle.
[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a crystallization kettle anti-blocking discharge device, comprising: a crystallization kettle body, a crystallization kettle feed port is arranged on the top of the crystallization kettle body, a crystallization kettle discharge port and a bottom cleaning port are arranged on the bottom of the crystallization kettle body, the position of the crystallization kettle discharge port is higher than the bottom cleaning port, the crystallization kettle discharge port is covered with a filter screen, and the filter screen is bulged and covered on the crystallization kettle discharge port.
[0005] In one feasible manner, the filter screen has a streamlined slope feed section and an arc-shaped material blocking section; the streamlined slope feed section is located below the arc-shaped material blocking section and covers the crystallization kettle discharge port, and the streamlined slope feed section is evenly distributed with filter holes; the arc-shaped material blocking section is located above the crystallization kettle discharge port.
[0006] In one feasible manner, the filter screen is arranged to be tilted along the flow direction of the fluid in the kettle and rotated around the discharge port of the crystallization kettle so that the angle between the center line of the filter screen and the central axis of the crystallization kettle body forms an acute angle; wherein the center line of the filter screen refers to the line connecting its highest point and lowest point.
[0007] In one achievable manner, the cross section of the streamlined slope feed section is an arc-shaped structure, and the cross section is a cross section formed perpendicular to the center line of the filter screen.
[0008] In a feasible manner, the width of the streamlined slope feed section gradually increases from top to bottom, and the width of the filter screen is the largest where the streamlined slope feed section connects to the arc-shaped material blocking section.
[0009] In one achievable manner, reinforcing ribs are provided on the streamlined slope feed section.
[0010] In one achievable manner, the vertical distance H from the highest point of the filter screen to the inner wall of the crystallization kettle body is ≤5 cm.
[0011] In one achievable manner, the edge of the filter screen is provided with a flange, and mounting holes are evenly arranged on the flange, so that the filter screen can be fixed to the inner wall of the crystallization kettle body by bolts.
[0012] In one achievable manner, the bottom cleaning port is located at the lowest point of the bottom of the crystallization kettle body.
[0013] Compared with the prior art, the crystallization kettle anti-blocking discharge device provided by the utility model has the following beneficial effects: a filter screen is installed above the discharge port of the crystallization kettle, and the material passing through the filter screen enters the discharge port during the continuous discharge process of the crystallization kettle, and the lumps that cannot pass through the filter screen are intercepted in the crystallization kettle and gradually gathered at the bottom cleaning port under the centrifugal force generated by the stirring of the crystallization kettle, and the lumps in the crystallization kettle are regularly removed from the bottom cleaning port. The device can avoid the occurrence of abnormal situations such as lumps blocking the discharge pipe and the material pump, ensure the continuity and smoothness of the discharge process, and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A schematic diagram of the structure of the anti-blocking discharge device for the crystallization kettle provided in the embodiment of the utility model;
[0015] Figure 2 A schematic diagram of the top view of the structure of the anti-blocking discharge device of the crystallization kettle provided in an embodiment of the utility model;
[0016] Figure 3 A schematic diagram of the structure of the filter screen provided in the embodiment of the utility model;
[0017] Description of reference numerals:
[0018] 1. Crystallization kettle body; 2. Crystallization kettle feed port; 3. Stirring mechanism; 4. Bottom cleaning port; 5. Crystallization kettle discharge port; 6. Filter screen; 61. Streamlined slope feed section; 62. Arc-shaped baffle section; 7. Bolts; 8. Reinforcement ribs; 9. Center line. DETAILED DESCRIPTION
[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0020] Please also read Figure 1 and Figure 2The crystallization kettle anti-blocking discharge device provided by the utility model is now described. The crystallization kettle anti-blocking discharge device comprises: a crystallization kettle body 1, a crystallization kettle feed port 2 is arranged on the top of the crystallization kettle body 1, a crystallization kettle discharge port 5 and a bottom cleaning port 4 are arranged on the bottom of the crystallization kettle body 1, the crystallization kettle discharge port 5 is located higher than the bottom cleaning port 4, and the crystallization kettle discharge port 5 is covered with a filter screen 6, which is convexly covered on the crystallization kettle discharge port 5.
[0021] The utility model provides a crystallization kettle anti-blocking discharge device, wherein a filter screen 6 is installed above a crystallization kettle discharge port 5, and during the continuous discharge process of the crystallization kettle, the material passing through the filter screen 6 enters the crystallization kettle discharge port 5, and the lumps that cannot pass through the filter screen 6 are intercepted in the crystallization kettle, and gradually gather at the bottom cleaning port 4 under the centrifugal force generated by the stirring of the crystallization kettle, and the lumps in the crystallization kettle are regularly removed from the bottom cleaning port 4. The device can avoid the occurrence of abnormal situations such as lumps blocking the discharge pipe and the material pump, ensure the continuity and smoothness of the discharge process, and improve production efficiency.
[0022] Among them, a stirring mechanism 3 is arranged in the crystallization kettle body 1, and the material in the kettle will rotate with the rotation direction of the stirring mechanism 3; the discharge port 5 of the crystallization kettle is connected to a discharge pipe, and the bottom cleaning port 4 is connected to a cleaning pipe, and valves are arranged on the cleaning pipe and the discharge pipe. When the material is discharged, the valve on the cleaning pipe is closed to prevent the material from being discharged from the bottom cleaning port 4, and the valve on the discharge pipe is opened to allow qualified material to be discharged through the discharge pipe for collection or subsequent processing.
[0023] It should also be noted that the aperture of the filter screen 6 can be adjusted and replaced according to the discharge requirements.
[0024] In some embodiments, see Figures 1 to 3 The filter screen 6 comprises a streamlined slope feed section 61 and an arc-shaped material blocking section 62; the streamlined slope feed section 61 is located below the arc-shaped material blocking section 62 and covers the crystallization kettle discharge port 5, and the streamlined slope feed section 61 is evenly distributed with filter holes; the arc-shaped material blocking section 62 is located above the crystallization kettle discharge port 5. The main function of the arc-shaped material blocking section 62 is to allow the feed liquid to form turbulence here to prevent the block materials from blocking the filter holes on the streamlined slope feed section 61.
[0025] In some embodiments, see Figure 1 The filter screen 6 is arranged along the flow direction of the fluid in the kettle and rotates with the crystallization kettle discharge port 5 as the center, so that the angle between the center line 9 of the filter screen 6 and the central axis of the crystallization kettle body 1 forms an acute angle; the center line 9 of the filter screen 6 refers to the line connecting its highest point and the lowest point. The filter screen 6 is symmetrically arranged along its center line 9.
[0026] By arranging the filter screen 6 in an inclined manner along the material rotation direction, it is possible to avoid the material being blocked at the filter screen 6, and instead allow the material to flow naturally into the filter screen 6, thereby improving the smoothness and continuity of material discharge.
[0027] To explain, a stirring mechanism 3 is provided in the crystallization kettle body 1, and the material will rotate with the rotation direction of the stirring mechanism 3, that is, the flow direction of the fluid in the kettle is consistent with the stirring direction of the stirring mechanism 3. When the material enters the lower head at the lower end of the crystallization kettle body 1, it rotates to the crystallization kettle discharge port 5 with the stirring, and the material that meets the requirements will pass through the filter screen 6 into the crystallization kettle discharge port 5, and be discharged from the crystallization kettle discharge port 5. The lumps are intercepted and gathered to the bottom cleaning port 4 under the action of centrifugal force, and are cleaned regularly.
[0028] In some embodiments, see Figure 1 to Figure 2 The cross section of the streamlined slope feeding section is an arc-shaped structure, and the cross section is a cross section formed by the center line 9 perpendicular to the filter screen 6. That is, the slope is high in the middle (center line 9 position) and low on both sides, so that when the material is centrifugally rotated to the filter screen 6 by the stirring mechanism 3, it enters the filter screen 6 through the filter hole.
[0029] In some embodiments, see Figure 2 The width of the streamlined slope feeding section increases gradually from top to bottom, and the width of the filter screen 6 is the largest at the point where the streamlined slope feeding section connects to the arc-shaped blocking section. The filter screen 6 is a streamlined slope from top to bottom as a whole, which improves the smoothness of the material entering the filter screen 6.
[0030] In some embodiments, see Figures 2 to 3 , a reinforcing rib 8 is arranged on the streamlined slope feed section to prevent deformation of the filter screen 6. Specifically, the reinforcing rib 8 is arranged on the outside of the filter screen 6 and is composed of several stainless steel strips to ensure that the filter screen 6 is not deformed when impacted by the material.
[0031] Optionally, the length direction of the reinforcing rib 8 is parallel to the center line 9 of the filter screen 6, and multiple reinforcing ribs 8 are arranged at intervals; for example, one reinforcing rib 8 is arranged on the center line 9, and the reinforcing ribs 8 are symmetrically arranged on both sides of the center line 9.
[0032] In some embodiments, see Figure 3 , the vertical distance H from the highest point of the filter screen 6 to the inner wall of the crystallization kettle body 1 is ≤5cm. If the height of the filter screen 6 is too high, it will affect the design of the stirring device.
[0033] In some embodiments, in combination Figures 2 to 3As shown, the edge of the filter screen 6 is provided with a flange, and mounting holes are evenly arranged on the flange, so that the filter screen 6 is fixed to the inner wall of the crystallization kettle body 1 by bolts 7. The filter screen 6 is fixed to the kettle wall by bolts 7, which is convenient for maintenance, disassembly, replacement and installation; optionally, the filter screen 6 can also be directly welded to the inner wall of the crystallization kettle body 1.
[0034] In some embodiments, in combination Figure 1 As shown, the bottom cleaning port 4 is located at the lowest point of the bottom of the crystallization kettle body 1, so as to facilitate the regular cleaning of bulk materials.
[0035] Using the device provided by the present application, the discharge process is as follows: the barbituric acid liquid feed continuously enters the crystallization kettle body 1 from the crystallization kettle feed port 2, and the material is evenly stirred by the stirring mechanism 3. During discharge, the feed liquid enters the filter screen 6, and the feed liquid passing through the filter screen 6 flows out from the crystallization kettle discharge port 5, and the opening is controlled by the discharge valve. The block material that does not pass through the filter screen 6 is intercepted to the bottom cleaning port of the kettle, and the block material is regularly cleaned out from the bottom cleaning port of the kettle, and the valve below the bottom cleaning port 4 controls its opening.
[0036] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A crystallization kettle anti-blocking discharge device, characterized in that: include: A crystallization kettle body (1), wherein a crystallization kettle feed port (2) is arranged at the top of the crystallization kettle body (1), a crystallization kettle discharge port (5) and a bottom cleaning port (4) are arranged at the bottom of the crystallization kettle body (1), the crystallization kettle discharge port (5) is located higher than the bottom cleaning port (4), the crystallization kettle discharge port (5) is covered with a filter screen (6), and the filter screen (6) is arranged on the crystallization kettle discharge port (5) in a raised shape.
2. The anti-blocking discharge device of the crystallization kettle according to claim 1, characterized in that: The filter screen (6) comprises a streamlined slope feed section (61) and an arc-shaped material blocking section (62); the streamlined slope feed section (61) is located below the arc-shaped material blocking section (62) and covers the crystallization kettle discharge port (5); the streamlined slope feed section (61) is evenly distributed with filter holes; the arc-shaped material blocking section (62) is located above the crystallization kettle discharge port (5).
3. The anti-blocking discharge device of the crystallization kettle according to claim 2, characterized in that: The filter screen (6) is arranged to be tilted along the flow direction of the fluid in the kettle and rotates around the crystallization kettle discharge port (5) so that the angle between the center line (9) of the filter screen (6) and the central axis of the crystallization kettle body (1) forms an acute angle; wherein the center line (9) of the filter screen (6) refers to the line connecting its highest point and lowest point.
4. The anti-blocking discharge device of the crystallization kettle according to claim 3, characterized in that: The cross section of the streamlined slope feed section (61) is an arc-shaped structure, and the cross section is a cross section formed perpendicular to the center line (9) of the filter screen (6).
5. The anti-blocking discharge device of the crystallization kettle according to claim 2, characterized in that: The streamlined sloped feeding section (61) gradually increases in width from top to bottom, and where the streamlined sloped feeding section (61) connects to the arc-shaped blocking section (62), the width of the filter screen (6) is the largest.
6. The anti-blocking discharge device of the crystallization kettle according to claim 2, characterized in that: The streamlined slope feeding section (61) is provided with reinforcing ribs (8).
7. The crystallization kettle anti-blocking discharge device according to claim 1, characterized in that: The vertical distance H from the highest point of the filter screen (6) to the inner wall of the crystallization kettle body (1) is ≤5 cm.
8. The crystallization kettle anti-blocking discharge device according to claim 1, characterized in that: The edge of the filter screen (6) is provided with a flange, and mounting holes are evenly arranged on the flange, so that the filter screen (6) can be fixed to the inner wall of the crystallization kettle body (1) by bolts (7).
9. The crystallization kettle anti-blocking discharge device according to claim 1, characterized in that: The bottom cleaning port (4) is located at the lowest point of the bottom of the crystallization kettle body (1).