Membrane integration system for purifying glufosinate-ammonium

Abstract

The utility model discloses a membrane integration system for purifying glufosinate-ammonium, and belongs to the technical field of glufosinate-ammonium purification. Comprising an electrodialysis membrane stack, long screws are inserted in the periphery of the electrodialysis membrane stack, the long screws are sleeved with mounting screw sleeves through threaded structures, mounting rods are inserted in the periphery of the mounting screw sleeves, supporting plates are arranged at the ends of the mounting rods, and the long screws are sleeved with the supporting plates. According to the electrodialysis membrane stack fixing device, when the electrodialysis membrane stack is fixed by rotating the mounting screw sleeve, the mounting screw sleeve can extrude the supporting plate and the connecting plate through the supporting spring, so that the connecting plate is attached to the side wall of the electrodialysis membrane stack, the mounting screw sleeve drives the supporting plate to rotate and extrudes the supporting spring at the same time, and the electrodialysis membrane stack is fixed. Furthermore, the supporting springs can be used for buffering, so that the condition that the electrodialysis membrane stack is damaged due to too large extrusion force or is loosened due to too small extrusion force is avoided, and the electrodialysis membrane stack is relatively convenient to mount.

Description

Technical Field

[0001] The utility model relates to the technical field of glufosinate purification, in particular to a membrane integration system for purifying glufosinate. Background Technique

[0002] Glufosinate is a broad-spectrum contact and non-selective herbicide, which has the characteristics of broad herbicide spectrum, low toxicity, high activity and good environmental compatibility. The integrated membrane process of ultrafiltration - nanofiltration - reverse osmosis - electrodialysis is used to purify the glufosinate production liquid, which can separate glufosinate and ammonium salt in the reaction liquid, obtain recycled water, greatly reduce the evaporation treatment cost, and improve the product quality of glufosinate.

[0003] The existing integrated membrane system filters and purifies through a membrane stack. The membrane stack is assembled in the order of "anode plate - separator - bipolar membrane - separator - anion membrane - separator - cation membrane - separator - bipolar membrane - cathode plate", and the membrane stack is tightened with long screw bolts. At the same time, to ensure the tightness of the device, the thickness of the gasket between the separators should not exceed the gasket groove, and the cation membrane side of the bipolar membrane should face the cathode plate.

[0004] However, the existing installation is tightened by long screw bolts. During the tightening process, the force of the bolts needs to be controlled. When the extrusion force is too large, the membrane stack is easily damaged, and when the force is too small, the whole membrane stack is likely to be loose, which is not convenient for the subsequent purification process and is inconvenient to use. Therefore, we propose a membrane integration system for purifying glufosinate to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantages of the existing technology involved in the background technique, and to propose a membrane integration system for purifying glufosinate.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A membrane integration system for purifying glufosinate, including an electrodialysis membrane stack. Long screw bolts are inserted around the electrodialysis membrane stack. The long screw bolts are sleeved with installation nuts through a threaded structure. Installation rods are inserted around the installation nuts. A support plate is arranged at the end of the installation rod. The support plate is sleeved outside the long screw bolts. A support spring is sleeved outside the installation rod. The support spring is located between the support plate and the installation nut;

[0008] The installation nut can be rotated to drive the support plate to contact the electrodialysis membrane stack. Then, the support spring can buffer the extrusion force, thus avoiding the situation of too large or too small extrusion force, and making the fixation of the electrodialysis membrane stack simpler.

[0009] Preferably, a connecting plate is movably arranged at the end of the support plate, and the connecting plate is in close contact with the side of the electrodialysis membrane stack;

[0010] When the installation sleeve is rotationally fixed, the connecting plate will not rotate after contacting the electrodialysis membrane stack, making the rotation of the installation sleeve more convenient.

[0011] Preferably, a rotating block is arranged at the end of the support plate, a rotating slot is formed inside the connecting plate, the rotating block extends into the rotating slot, the rotating block is L-shaped, and the rotating slot is adapted to the rotating block;

[0012] It can make the rotation between the support plate and the connecting plate more convenient, and at the same time increase the stability between the support plate and the connecting plate, avoiding the separation between the support plate and the connecting plate.

[0013] Preferably, a sliding plate is sleeved outside the installation rod, one end of the support spring is fixedly connected to the support plate, and the other end of the support spring is fixedly connected to the sliding plate;

[0014] The sliding of the sliding plate can drive the adjustment of the elastic coefficient of the support spring, so that the extrusion force of the installation sleeve on the electrodialysis membrane stack can be adjusted to adapt to different module installations.

[0015] Preferably, a moving sleeve is arranged inside the installation rod, connecting rods are arranged around the outer wall of the moving sleeve, sliding slots are formed on the outer wall of the installation rod, and the connecting rods pass through the sliding slots and are fixedly connected to the inner wall of the sliding plate;

[0016] The moving sleeve can drive the connecting rod to move, and the connecting rod drives the sliding plate to move, making the movement of the sliding plate more convenient.

[0017] Preferably, a threaded rod is inserted into the installation rod, the moving sleeve is sleeved outside the threaded rod, and the moving sleeve is threadedly connected to the threaded rod;

[0018] The rotation of the threaded rod can drive the moving sleeve to rotate. At the same time, the threaded rod has a thread self-locking mechanism, which can limit the position of the sliding plate, so that the sliding plate can better support the support spring.

[0019] Preferably, the end of the threaded rod extends to the outside of the end of the installation rod, and an adjusting block is arranged at the end of the threaded rod;

[0020] It enables people to rotate the adjusting block outside to drive the threaded rod to rotate, making the rotation of the threaded rod more convenient.

[0021] Compared with the prior art, the beneficial effects of the present utility model are:

[0022] 1. When the rotatable mounting sleeve is used to fix the electrodialysis membrane stack, the mounting sleeve can squeeze the support plate and the connecting plate through the support spring, so that the connecting plate fits against the side wall of the electrodialysis membrane stack. The mounting sleeve drives the support plate to rotate and simultaneously squeezes the support spring, so that the support spring can buffer, preventing damage caused by excessive squeezing force or looseness caused by too small squeezing force, making the installation of the electrodialysis membrane stack more convenient.

[0023] 2. By rotating the adjusting block, the adjusting block drives the threaded rod to rotate, the threaded rod drives the moving sleeve to move, and the moving sleeve drives the sliding plate to move through the connecting rod, so as to adjust the elastic coefficient of the support spring, making the fixing force of the support spring on the electrodialysis membrane stack different and adapting to modules of different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 FIG. 10 is a schematic perspective view of a membrane integration system for purifying glufosinate-ammonium proposed by the present utility model;

[0025] Figure 2 is Figure 1 a front view structural schematic diagram of the mounting sleeve in FIG. 1;

[0026] Figure 3 is Figure 2 a front view sectional structural schematic diagram of FIG. 2;

[0027] Figure 4 is Figure 3 an enlarged structural schematic diagram of part A in FIG. 3.

[0028] In the figure: 1, electrodialysis membrane stack; 2, long screw; 3, mounting sleeve; 4, mounting rod; 5, support plate; 6, support spring; 7, connecting plate; 8, rotating block; 9, rotating slot; 10, threaded rod; 11, moving sleeve; 12, connecting rod; 13, sliding slot; 14, sliding plate; 15, adjusting block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0030] Refer to Figures 1-4A membrane integration system for purifying glufosinate is shown. Long screws 2 are inserted around the electrodialysis membrane stack 1. Then, mounting sleeves 3 are sleeved on the long screws 2 through threaded structures. Installation rods 4 are inserted around the mounting sleeves 3, and support plates 5 are provided at the ends of the installation rods 4. The support plates 5 are sleeved outside the long screws 2. Then, support springs 6 are sleeved outside the installation rods 4. The support springs 6 are located between the support plates 5 and the mounting sleeves 3. A connecting plate 7 is movably provided at the end of the support plate 5. Then, the connecting plate 7 is in contact with the side of the electrodialysis membrane stack 1. At the same time, a rotating block 8 is provided at the end of the support plate 5, and a rotating slot 9 is formed inside the connecting plate 7. Then, the rotating block 8 extends into the rotating slot 9. The rotating block 8 is L-shaped, and the rotating slot 9 is adapted to the rotating block 8.

[0031] Specifically, the sliding plate 14 in this embodiment will be described. Please refer to Figure 3 and Figure 4 A sliding plate 14 is sleeved outside the installation rod 4. One end of the support spring 6 is fixedly connected to the support plate 5, and the other end of the support spring 6 is fixedly connected to the sliding plate 14. A moving sleeve 11 is provided inside the installation rod 4. Connecting rods 12 are provided around the outer wall of the moving sleeve 11. Then, sliding slots 13 are formed on the outer wall of the installation rod 4. At the same time, the connecting rods 12 pass through the sliding slots 13 and are fixedly connected to the inner wall of the sliding plate 14. A threaded rod 10 is inserted into the installation rod 4. The moving sleeve 11 is sleeved outside the threaded rod 10. The moving sleeve 11 is threadedly connected to the threaded rod 10. At the same time, the end of the threaded rod 10 extends outside the end of the installation rod 4, and an adjusting block 15 is provided at the end of the threaded rod 10.

[0032] Working principle: When the present utility model is in use, after the long screws 2 pass through the four sides of the electrodialysis membrane stack 1, the mounting sleeves 3 are sleeved on the long screws 2 and rotated, so that the mounting sleeves 3 rotate and retract to complete the limit fixation of the electrodialysis membrane stack 1. At the same time, during the retraction of the mounting sleeves 3, the support springs 6 are compressed, so that the support springs 6 can provide buffering to avoid damage to the electrodialysis membrane stack 1 caused by excessive extrusion force or loosening of the electrodialysis membrane stack 1 caused by too small extrusion force, making the installation of the electrodialysis membrane stack 1 more convenient.

[0033] At the same time, the operator can rotate the adjusting block 15, so that the adjusting block 15 drives the threaded rod 10 to rotate, and the threaded rod 10 drives the moving sleeve 11 to move, so that the moving sleeve 11 drives the sliding plate 14 to move through the connecting rods 12, thereby adjusting the elastic coefficient of the support spring 6 by the sliding plate 14, and enabling the mounting sleeve 3 to squeeze and fix different material modules, which is more convenient to use.

[0034] In the present utility model, the installation methods, connection methods or setting methods of all the above-mentioned components are common mechanical methods, and the specific structures, models and coefficient indexes of all its components are its own technologies. Any implementation that can achieve its beneficial effects can be carried out, so no further elaboration will be made.

[0035] The above embodiments are the preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principle of the present utility model shall be equivalent replacement methods and are all included in the protection scope of the present utility model.

[0036] In the present utility model, unless otherwise stated, the orientation words such as "up and down, left and right, front and back, inside and outside, vertical and horizontal" included in the terms only represent the orientation of the terms in the normal use state, or the common names understood by those skilled in the art, and should not be regarded as a limitation to the terms. At the same time, the numerical sequence terms such as "first", "second" and "third" do not represent specific quantities and orders, but are only used for name distinction. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

Claims

1. A membrane integration system for purifying glufosinate, comprising an electrodialysis membrane stack (1), characterized in that, Long screws (2) are inserted around the electrodialysis membrane stack (1). An installation nut (3) is sleeved on the long screw (2) through a threaded structure. Installation rods (4) are inserted around the installation nut (3). A support plate (5) is arranged at the end of the installation rod (4). The support plate (5) is sleeved outside the long screw (2). A support spring (6) is sleeved on the installation rod (4). The support spring (6) is located between the support plate (5) and the installation nut (3).

2. The membrane integration system for purifying glufosinate-ammonium according to claim 1, wherein A connecting plate (7) is movably arranged at the end of the support plate (5). The connecting plate (7) is in mutual contact with the side of the electrodialysis membrane stack (1).

3. The membrane integration system for purifying glufosinate-ammonium according to claim 2, wherein, A rotating block (8) is arranged at the end of the support plate (5). A rotating slot (9) is formed inside the connecting plate (7). The rotating block (8) extends into the rotating slot (9). The rotating block (8) is L-shaped. The rotating slot (9) is adapted to the rotating block (8).

4. The membrane integration system for purifying glufosinate-ammonium according to claim 1, characterized in that, A sliding plate (14) is sleeved on the installation rod (4). One end of the support spring (6) is fixedly connected to the support plate (5), and the other end of the support spring (6) is fixedly connected to the sliding plate (14).

5. The membrane integration system for purifying glufosinate-ammonium according to claim 4, wherein, A moving sleeve (11) is arranged inside the installation rod (4). Connecting rods (12) are arranged around the outer wall of the moving sleeve (11). A sliding slot (13) is formed on the outer wall of the installation rod (4). The connecting rod (12) passes through the sliding slot (13) and is fixedly connected to the inner wall of the sliding plate (14).

6. The membrane integration system for purifying glufosinate-ammonium according to claim 5, characterized in that, A threaded rod (10) is inserted into the installation rod (4). The moving sleeve (11) is sleeved outside the threaded rod (10). The moving sleeve (11) is in threaded connection with the threaded rod (10).

7. An integrated membrane system for purifying glufosinate-ammonium according to claim 6, characterized in that, The end of the threaded rod (10) extends outside the end of the installation rod (4). An adjusting block (15) is arranged at the end of the threaded rod (10).

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