A mother liquor recovery treatment device for acrylamide production

Abstract

The utility model discloses a mother liquor recovery treatment equipment for acrylamide production, including mother liquor treatment bin, the top of mother liquor treatment bin is installed and enters the material mouth, the lower extreme of mother liquor treatment bin is connected with the guide mechanism through the connecting column, and the surface of guide mechanism places the recovery bucket, the upper end of mother liquor treatment bin places the dismounting mechanism, and the inside installation of dismounting mechanism has the stirring mechanism. The utility model discloses through the material inlet can guide the mother liquor to the mother liquor treatment bin, when through the guide of mother liquor treatment bin, can make the mother liquor fall to the limiting frame, and through the filter baffle can filter the floating object and impurity in the mother liquor and carry out the filter processing, and the mother liquor after filter processing is collected through the recovery bucket of support base surface placement, and simultaneously drive motor can make the connecting shaft drive the stirring plate along the filter baffle surface rotation, and the mother liquor and filter on the filter baffle surface are conveniently agitated, avoid the filter baffle and take place in the filter and block up.

Description

Technical Field

[0001] This utility model relates to the field of mother liquor recovery technology, and in particular to a mother liquor recovery and treatment device for acrylamide production. Background Technology

[0002] The mother liquor from acrylamide production is the saturated solution remaining after removing water or impurities during the hydration reaction or crystallization separation process. It is the main source of the mother liquor. During the hydration reaction stage of acrylamide production, the raw material acrylonitrile reacts with water in a fixed-bed reactor to generate an acrylamide solution. This solution is then adjusted to pH and concentrated by evaporation in a neutralization tower. At this point, unreacted raw materials (such as unconverted acrylonitrile and water) and byproducts remain in the residual solution, forming the mother liquor.

[0003] Existing mother liquor recycling processes may contain unreacted raw materials (such as acrylonitrile, catalysts, etc.), byproducts (such as acrylamide monomers), or other impurities. When recycling mother liquor, these impurities cannot be effectively removed, leading to increased processing time in subsequent processes or product contamination. To address these issues, we propose a mother liquor recycling and treatment device for acrylamide production. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a mother liquor recovery and treatment device for acrylamide production.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A mother liquor recovery and treatment device for acrylamide production includes a mother liquor treatment chamber, an inlet installed at the top of the mother liquor treatment chamber, a guide mechanism connected to the lower end of the mother liquor treatment chamber via a connecting column, a recovery bucket placed on the surface of the guide mechanism, a disassembly and assembly mechanism placed at the upper end of the mother liquor treatment chamber, a stirring mechanism installed inside the disassembly and assembly mechanism, and a filtration mechanism connected to the lower end of the stirring mechanism.

[0006] Preferably, the guiding mechanism includes a support base, the lower end of the connecting column is fixedly connected to the support base, and both ends of the support base are provided with grooves, in which multiple guide rollers are installed.

[0007] Preferably, the disassembly and assembly mechanism includes a mounting plate, which is placed above the mother liquor treatment chamber, and a sealing strip is glued to the bottom of the mounting plate, the sealing strip abutting against the upper surface of the mother liquor treatment chamber.

[0008] Preferably, a positioning plate is fixedly connected to the side of the mounting plate, and two guide columns are fixedly connected to the surface of the mother liquor treatment chamber. Both guide columns are cylindrical, and the positioning plate has a circular hole that matches the two guide columns.

[0009] Preferably, the stirring mechanism includes a drive motor, the drive motor is mounted on the surface of the mounting plate, and a fixing frame is mounted on the surface of the drive motor. The output end of the drive motor is fixedly connected to the upper end of the connecting shaft, and a toggle plate is fixedly connected to the lower end surface of the connecting shaft.

[0010] Preferably, the filtering mechanism includes a filter partition, the lower end of the connecting shaft is connected to the interior of the filter partition through a bearing, and a limit frame is fixedly connected to the upper end face of the filter partition.

[0011] Preferably, the surface dimensions of the filter baffle and the limiting frame are adapted to the inner wall dimensions of the mother liquor treatment chamber, and the upper end face of the limiting frame is set as an inclined surface.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This device guides the mother liquor into the mother liquor treatment chamber through the inlet. The mother liquor then falls into the limiting frame through the mother liquor treatment chamber. The filter baffle filters out floating matter and impurities in the mother liquor. The filtered mother liquor is then collected through a recycling bin placed on the surface of the support base. At the same time, the drive motor causes the connecting shaft to rotate the agitator plate along the surface of the filter baffle, which facilitates the stirring of the mother liquor and filter material on the surface of the filter baffle and prevents the filter baffle from clogging during filtration.

[0013] 2. The device has multiple guide rollers installed inside the support base, which can easily guide and push the recycling bin to move. When one recycling bin is full, it can be quickly replaced with another recycling bin. At the same time, when the connecting shaft is pulled out of the mother liquor treatment chamber by the mounting plate, the filter baffle and the limiting frame can be easily removed from the mother liquor treatment chamber, which is convenient for cleaning the filter baffle. The positioning plate is sleeved on the surface of the guide column to facilitate the positioning and installation of the mounting plate. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a mother liquor recovery and treatment device for acrylamide production proposed in this utility model. Figure 2 for Figure 1 A three-dimensional cross-sectional view of the mother liquor treatment chamber and inlet structure; Figure 3 for Figure 1 A three-dimensional schematic diagram of the mounting plate and filter baffle structure in the image; Figure 4 for Figure 1A three-dimensional cross-sectional view of the mounting plate and fixing frame structure from below.

[0015] In the diagram: 1. Mother liquor treatment chamber; 2. Inlet; 3. Connecting column; 4. Guiding mechanism; 41. Support base; 42. Guide roller; 5. Recycling bins; 6. Assembly / disassembly mechanism; 61. Mounting plate; 62. Positioning plate; 63. Guide column; 64. Sealing strip; 7. Stirring mechanism; 71. Fixed frame; 72. Drive motor; 73. Connecting shaft; 74. Actuating plate; 8. Filtering mechanism; 81. Filter baffle; 82. Limiting frame. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0017] Reference Figure 1-4 A mother liquor recovery and treatment device for acrylamide production includes a mother liquor treatment chamber 1, an inlet 2 installed at the top of the mother liquor treatment chamber 1, a guide mechanism 4 connected to the lower end of the mother liquor treatment chamber 1 via a connecting column 3, and a recovery bucket 5 placed on the surface of the guide mechanism 4. The guide mechanism 4 facilitates the queuing and unloading of multiple recovery buckets 5, thereby improving the recovery efficiency. A disassembly and assembly mechanism 6 is placed at the upper end of the mother liquor treatment chamber 1, and a stirring mechanism 7 is installed inside the disassembly and assembly mechanism 6. A filtration mechanism 8 is connected to the lower end of the stirring mechanism 7.

[0018] Furthermore, refer to Figure 1 and Figure 2 It can be seen that the guiding mechanism 4 includes a support base 41, the lower end of the connecting column 3 is fixedly connected to the support base 41, and both ends of the support base 41 are provided with grooves. Multiple guide rollers 42 are installed in the grooves. The multiple guide rollers 42 installed in the grooves inside the support base 41 can conveniently limit and guide the recycling bin 5.

[0019] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the disassembly and assembly mechanism 6 includes an installation plate 61. The installation plate 61 is placed on top of the mother liquor treatment chamber 1, and a sealing strip 64 is glued to the bottom of the installation plate 61. The sealing strip 64 abuts against the upper surface of the mother liquor treatment chamber 1. The sealing strip 64 glued to the bottom of the installation plate 61 can increase the sealing between it and the mother liquor treatment chamber 1.

[0020] Furthermore, refer to Figure 3 and Figure 4It can be seen that a positioning plate 62 is fixedly connected to the side of the mounting plate 61, and two guide posts 63 are fixedly connected to the surface of the mother liquor treatment tank 1. Both guide posts 63 are cylindrical. The positioning plate 62 has a round hole that matches the two guide posts 63. After the mounting plate 61 is installed, the positioning plate 62 can be fitted onto the surface of the two guide posts 63, which facilitates the positioning and installation of the mounting plate 61. At the same time, the cylindrical shape of the guide posts 63 can reduce the wear of the insertion.

[0021] Furthermore, refer to Figure 3 and Figure 4 It can be seen that the stirring mechanism 7 includes a drive motor 72. The drive motor 72 is mounted on the surface of the mounting plate 61, and a fixing frame 71 is mounted on the surface of the drive motor 72. The fixing frame 71 can conveniently protect the function of the drive motor 72. The output end of the drive motor 72 is fixedly connected to the upper end of the connecting shaft 73, and a toggle plate 74 is fixedly connected to the lower end surface of the connecting shaft 73. The drive motor 72 can drive the connecting shaft 73 to drive the toggle plate 74 to rotate, so as to avoid clogging on the surface of the filter plate 81.

[0022] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the filter mechanism 8 includes a filter baffle 81, the lower end of the connecting shaft 73 is connected to the inside of the filter baffle 81 through a bearing, and a limiting frame 82 is fixedly connected to the upper end face of the filter baffle 81. The filter baffle 81 can facilitate the filtration of the mother liquor, and the limiting frame 82 can guide and limit the mother liquor.

[0023] Furthermore, refer to Figure 2 and Figure 3 It can be seen that the surface dimensions of the filter baffle 81 and the limiting frame 82 are adapted to the inner wall dimensions of the mother liquor treatment chamber 1. The upper end face of the limiting frame 82 is set as an inclined surface. By adapting the surface dimensions of the filter baffle 81 and the limiting frame 82 to the inner wall dimensions of the mother liquor treatment chamber 1, the mother liquor can be guided into the limiting frame 82.

[0024] Working principle: When this utility model is in use, when the mother liquor treatment chamber 1 is in use, according to the attached... Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4The mother liquor can be guided into the mother liquor treatment chamber 1 through the inlet 2, and filtered by the filter baffle 81 installed inside the mother liquor treatment chamber 1. During the filtration process, the drive motor 72 drives the actuating plate 74 to rotate along the surface of the filter baffle 81 through the connecting shaft 73, which can prevent the filter baffle 81 from clogging. When the filtered mother liquor falls into the recovery tank 5 placed on the surface of the support base 41 through the lower outlet of the mother liquor treatment chamber 1, when one recovery tank 5 is full, pushing the other recovery tank 5 can make the recovery tank... 5. The movement is guided by multiple guide rollers 42, which facilitates the quick replacement of the recycling bin 5. At the same time, when the filter partition 81 is not in use, by gripping the fixing frame 71, the mounting plate 61 can pull the filter partition 81 and the limiting frame 82 out of the mother liquor treatment chamber 1 as a whole through the connecting shaft 73, and clean the filter material on the surface of the filter partition 81. When the cleaned filter partition 81 is inserted into the mother liquor treatment chamber 1 through the connecting shaft 73, the mounting plate 61 can drive the positioning plate 62 to be sleeved on the surface of the guide column 63, which facilitates the positioning and installation of the mounting plate 61. The above is the complete working principle of this utility model.

[0025] In this utility model, the installation, connection or setting methods of all the components mentioned above are common mechanical methods, and the specific structure, model and coefficient index of all the components are their own technologies. As long as they can achieve their beneficial effects, they can be implemented, so they will not be described in detail.

[0026] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model shall be considered equivalent substitutions and shall be included within the protection scope of the present utility model.

[0027] In this utility model, unless otherwise stated, directional terms such as "up, down, left, right, front, back, inside, outside, and vertical and horizontal" in the terminology only represent the orientation of the term in its conventional use or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, numerals such as "first," "second," and "third" do not represent specific quantities or orders, but are only used to distinguish names. Moreover, 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 series of elements includes not only those elements, but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

Claims

1. A mother liquor recovery and treatment device for acrylamide production, comprising a mother liquor treatment tank (1), characterized in that, The top of the mother liquor treatment chamber (1) is equipped with a feed inlet (2), the lower end of the mother liquor treatment chamber (1) is connected to a guide mechanism (4) via a connecting column (3), and a recycling bucket (5) is placed on the surface of the guide mechanism (4). The upper end of the mother liquor treatment chamber (1) is equipped with a disassembly and assembly mechanism (6), and a stirring mechanism (7) is installed inside the disassembly and assembly mechanism (6). The lower end of the stirring mechanism (7) is connected to a filter mechanism (8).

2. The mother liquor recovery and treatment equipment for acrylamide production according to claim 1, characterized in that, The guiding mechanism (4) includes a support base (41), the lower end of the connecting column (3) is fixedly connected to the support base (41), and the two ends of the support base (41) are provided with grooves, and multiple guide rollers (42) are installed in the grooves.

3. The mother liquor recovery and treatment equipment for acrylamide production according to claim 1, characterized in that, The disassembly and assembly mechanism (6) includes an installation plate (61), which is placed above the mother liquor treatment chamber (1), and a sealing strip (64) is glued below the installation plate (61), which abuts against the upper surface of the mother liquor treatment chamber (1).

4. The mother liquor recovery and treatment equipment for acrylamide production according to claim 3, characterized in that, The mounting plate (61) is fixedly connected to a positioning plate (62) on its side. The surface of the mother liquor treatment chamber (1) is fixedly connected to two guide columns (63), and both guide columns (63) are cylindrical. The positioning plate (62) has a circular hole that matches the two guide columns (63).

5. The mother liquor recovery and treatment equipment for acrylamide production according to claim 3, characterized in that, The stirring mechanism (7) includes a drive motor (72), the drive motor (72) is mounted on the surface of the mounting plate (61), and a fixed frame (71) is mounted on the surface of the drive motor (72). The output end of the drive motor (72) is fixedly connected to the upper end of the connecting shaft (73), and a toggle plate (74) is fixedly connected to the lower end surface of the connecting shaft (73).

6. The mother liquor recovery and treatment equipment for acrylamide production according to claim 5, characterized in that, The filtering mechanism (8) includes a filter partition (81), the lower end of the connecting shaft (73) is connected to the inside of the filter partition (81) through a bearing, and a limit frame (82) is fixedly connected to the upper end face of the filter partition (81).

7. The mother liquor recovery and treatment equipment for acrylamide production according to claim 6, characterized in that, The surface dimensions of the filter baffle (81) and the limiting frame (82) are adapted to the inner wall dimensions of the mother liquor treatment chamber (1), and the upper end face of the limiting frame (82) is set as an inclined surface.

Images