Multilayer deposition device for producing sodium lignin sulfonate composite nanofiltration membrane

Abstract

The utility model belongs to the technical field of sodium lignin sulfonate composite nanofiltration membrane production, and particularly relates to a multilayer deposition device for sodium lignin sulfonate composite nanofiltration membrane production, which comprises a cabinet body, a plurality of deposition boxes are equidistantly arranged in the cabinet body along the height direction of the cabinet body, the deposition boxes and the cabinet body are movably mounted, and the deposition boxes are arranged in the cabinet body. A limiting groove is formed in the middle of the left side of the cabinet body, a motor is fixedly installed on the upper left portion of the cabinet body, a vertically-arranged threaded rod is fixed to the output end of the motor, and a material injection assembly is in threaded connection with the outer side of the threaded rod and provided with a liquid injection pipe used for penetrating through the limiting groove to inject materials into the deposition box. A plurality of groups of absorbing and transferring assemblies for absorbing and transferring sodium lignin sulfonate are correspondingly arranged above the plurality of deposition boxes, are driven by a worm rotationally arranged on the outer wall of the right side of the cabinet body, and are used for transferring sodium lignin sulfonate out of the cabinet body through communicating pipes.

Description

Technical Field

[0001] The utility model belongs to the technical field of sodium lignin sulfonate composite nanofiltration membrane production, in particular to a multi-layer deposition device for producing sodium lignin sulfonate composite nanofiltration membrane. Background Art

[0002] The sodium lignin sulfonate composite nanofiltration membrane has a pore size of more than 1nm, generally 1-2nm, and is a functional semi-permeable membrane that allows solvent molecules or certain low molecular weight solutes or low-valent ions to pass through. In the production process of the sodium lignin sulfonate composite nanofiltration membrane, a multi-layer deposition device is required to precipitate and separate the solution.

[0003] For example, a multilayer deposition device for producing a sodium lignin sulfonate composite nanofiltration membrane disclosed in the Chinese utility model patent with publication number CN211837293U comprises a vertical plate, the upper end face of the vertical plate is fixedly connected to a fixed plate, the lower surface of the fixed plate is fixedly connected to symmetrically arranged support rods, and the support rods are parallel to the vertical plate, a loading plate is equidistantly fixedly connected to the side wall of the vertical plate, a sedimentation box is arranged on the loading plate, a discharge pipe is fixedly connected to the side wall of the sedimentation box, one end of the discharge pipe passes through the side wall of the vertical plate and extends to a side of the vertical plate away from the sedimentation box, and a feed pipe is arranged on one side of the sedimentation box, and the feed pipe is connected to the sedimentation box; not only can the floor space of the sedimentation box be reduced, but also the opening and closing of multiple discharge pipes can be controlled simultaneously, saving manpower and time.

[0004] However, in the actual production and preparation process of sodium lignin sulfonate composite nanofiltration membrane, it is found that the multilayer deposition device proposed in the above-mentioned comparative document still has some obvious defects, for example: in the actual feeding process, the feeding is carried out through the feed pipe and multiple L-shaped pipes. After the bottommost precipitation box is full, the sodium lignin sulfonate will still flow out toward the bottommost precipitation box and leak through the gap between the precipitation box and the vertical plate, which not only affects the feeding of the remaining precipitation boxes above, but also causes waste of raw materials. In addition, the height position of the discharge pipe in the comparative document is constant and cannot be adjusted, which easily leads to incomplete discharge of sodium lignin sulfonate after precipitation, and part of the sodium lignin sulfonate will remain in the precipitation box and is difficult to discharge smoothly. Therefore, it is urgent to improve the existing multilayer deposition device and provide a multilayer deposition device for the production of sodium lignin sulfonate composite nanofiltration membrane with fast and sufficient discharge function. Utility Model Content

[0005] The purpose of the utility model is to provide a multilayer deposition device for producing sodium lignin sulfonate composite nanofiltration membrane with reasonable design, simple structure, convenient orderly injection and fast and sufficient discharge function, so as to solve the problems existing in the prior art.

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

[0007] A multilayer deposition device for producing a sodium lignin sulfonate composite nanofiltration membrane comprises a cabinet, wherein a plurality of deposition boxes are equidistantly arranged inside the cabinet along its height direction, the deposition boxes are movably installed with the cabinet, a limiting groove is provided in the middle of the left side of the cabinet, a motor is fixedly installed on the upper left side of the cabinet, a vertically arranged threaded rod is fixed on the output end of the motor, an injection assembly is threadedly connected to the outer side of the threaded rod, and the injection assembly has an injection pipe for injecting material into the deposition box through the limiting groove; a plurality of groups of absorption and transfer assemblies for absorbing and transferring sodium lignin sulfonate are respectively arranged above the plurality of deposition boxes, the plurality of absorption and transfer assemblies are all driven by a worm gear rotatably arranged on the right outer wall of the cabinet, and the plurality of absorption and transfer assemblies transfer the sodium lignin sulfonate to the outside of the cabinet through a connecting pipe.

[0008] Preferably, the injection assembly includes a movable plate, a cross bar, a movable rod, a spring, a rotating wheel, an injection tube and a first hose. A through groove is opened inside the left end of the movable plate, and a cross bar is welded and fixed in the through groove. The movable rod is slidably sleeved on the outer side of the cross bar, and a spring is installed on the right side of the movable rod. A rotating wheel is rotatably installed on the outer wall of the rear end of the movable rod, and the front end of the movable rod is fixedly sleeved on the outer middle part of the injection tube. One end of the first hose is fixedly connected to the liquid inlet of the injection tube.

[0009] Preferably, the right end of the movable plate is threadedly sleeved on the outside of the threaded rod, and the end of the injection tube away from the first hose is guided and slidably located in the limiting groove.

[0010] Preferably, the rotating wheel is located on the right side of the vertical rod, and the right side outer wall of the vertical rod is provided with a plurality of protrusions at equal intervals for use with the injection assembly, and the upper and lower outer walls of the protrusions are symmetrically inclined.

[0011] Preferably, the absorption and transfer assembly includes a bidirectional screw, a worm gear, a connecting block, a push rod, a piston plate, a collecting box, a filter plate and a second hose. The bidirectional screw bearing is connected to the inner side of the cabinet. The right end of the bidirectional screw passes through the cabinet and is fixedly connected to the worm gear, which is meshed with the worm. The left and right ends of the bidirectional screw are threadedly sleeved with connecting blocks on the outer sides. Push rods are hinged on the outer sides of the two connecting blocks. The bottom ends of the push rods are hinged to the upper end surface of the piston plate. A collecting box is inlaid and installed in the middle of the piston plate. A filter plate is fixed to the inner side of the bottom of the collecting box. One end of the second hose is fixedly connected to the top liquid outlet of the collecting box, and the other end of the second hose is fixedly connected to the liquid inlet of the connecting pipe.

[0012] Preferably, the two push rods are arranged symmetrically on the left and right, the outer wall of the piston plate is sealingly and slidingly connected to the inner wall of the deposition box, and the top inner wall of the deposition box is inclined.

[0013] Preferably, a material pump is fixedly installed on the bottom rear outer wall of the cabinet, the output end of the material pump is fixedly connected to a third hose, the input end of the material pump is fixedly provided with a vertical pipe, and a plurality of connecting pipes are respectively passed through and fixed on the rear end outer wall of the cabinet, and one end of the connecting pipe located outside the cabinet is embedded and connected with the vertical pipe.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] In the scheme of the utility model, through the protrusions arranged on the outer wall of the vertical rod corresponding to the deposition box, when the motor controls the threaded rod to rotate and controls the injection assembly to move up, the protrusions can be used to squeeze the rotating wheel, and the control wheel drives the movable rod and the injection tube to move right, so that the right end of the injection tube moves from the limiting groove to the upper left of the deposition box, and the injection can be carried out. Similarly, multiple deposition boxes can be injected in an orderly manner in turn, which can avoid the waste caused by overflow of raw materials.

[0016] The utility model can control multiple bidirectional screws to rotate synchronously through a worm and multiple worm wheels, so that two connecting blocks are separated from each other, and the piston plate can be controlled to move down into the sedimentation box through a push rod, and the material pump can be started. The sodium lignin sulfonate precipitated in the sedimentation box can be sucked out through the vertical pipe, the connecting pipe and the second hose, and properly collected through the third hose. Moreover, the continuous downward movement of the piston plate can ensure that the sodium lignin sulfonate precipitated in the sedimentation box is fully and completely absorbed to avoid residue, and the filter plate on the inner side of the bottom of the collection box can also prevent the sediment from being sucked out. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following briefly introduces the drawings required for use in the embodiments or the prior art descriptions, and the following description is made with respect to the drawings:

[0018] Figure 1 This is a three-dimensional front view structural diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall top view of the cross-sectional structure of the injection assembly of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional rear view structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the front cross-sectional structure of the absorption and transfer component of the utility model;

[0022] Figure 5 It is a right side structural schematic diagram of the worm wheel and worm of the utility model;

[0023] Figure 6It is a right side cross-sectional structural schematic diagram of the second hose and the connecting pipe of the utility model.

[0024] In the figure:

[0025] 1. Cabinet; 2. Limiting groove; 3. Motor; 4. Threaded rod; 5. Injection assembly; 51. Movable plate; 52. Cross bar; 53. Movable rod; 54. Spring; 55. Rotating wheel; 56. Injection pipe; 57. First hose; 6. Vertical rod; 7. Absorption and transfer assembly; 71. Bidirectional screw; 72. Worm gear; 73. Connecting block; 74. Push rod; 75. Piston plate; 76. Collecting box; 77. Filter plate; 78. Second hose; 8. Worm; 9. Connecting pipe; 10. Vertical pipe; 11. Material pump; 12. Third hose; 13. Sedimentation box. DETAILED DESCRIPTION

[0026] The embodiments described below are only some of the embodiments of the present invention and do not represent all the embodiments consistent with the present invention. Now, in conjunction with the accompanying drawings, the exemplary embodiments are described as follows:

[0027] like Figure 1-6 As shown in one, the utility model shows a multilayer deposition device for producing a sodium lignin sulfonate composite nanofiltration membrane, which includes a cabinet 1. A plurality of deposition boxes 13 are equidistantly arranged inside the cabinet 1 along its height direction. The deposition boxes 13 are movably installed with the cabinet 1. A limiting groove 2 is provided in the middle of the left side of the cabinet 1. A motor 3 is fixedly installed on the upper left side of the cabinet 1. A vertically arranged threaded rod 4 is fixed on the output end of the motor 3. An injection assembly 5 is threadedly connected to the outer side of the threaded rod 4. The injection assembly 5 has an injection pipe 56 for injecting material into the deposition box 13 through the limiting groove 2; a plurality of groups of absorption and transfer assemblies 7 for absorbing and transferring sodium lignin sulfonate are respectively arranged above the plurality of deposition boxes 13. The plurality of absorption and transfer assemblies 7 are all driven by a worm 8 rotatably arranged on the right outer wall of the cabinet 1. The plurality of absorption and transfer assemblies 7 transfer the sodium lignin sulfonate to the outside of the cabinet 1 through a connecting pipe 9.

[0028] As a preferred embodiment, on the basis of the above structure, preferably, the injection assembly 5 includes a movable plate 51, a cross bar 52, a movable rod 53, a spring 54, a rotating wheel 55, an injection tube 56 and a first hose 57. A through groove is opened inside the left end of the movable plate 51, and a cross bar 52 is welded and fixed in the through groove. The movable rod 53 is slidably sleeved on the outer side of the cross bar 52. A spring 54 is installed on the right side of the movable rod 53. A rotating wheel 55 is rotatably installed on the outer wall of the rear end of the movable rod 53. The front end of the movable rod 53 is fixedly sleeved on the outer middle part of the injection tube 56, and one end of the first hose 57 is fixedly connected to the liquid inlet of the injection tube 56.

[0029] In this embodiment, the provision of the injection assembly 5 facilitates convenient feeding of multiple deposition boxes 13 arranged in the vertical direction.

[0030] As a preferred embodiment, based on the above structure, preferably, the right end of the movable plate 51 is threadedly sleeved on the outside of the threaded rod 4, and the end of the injection tube 56 away from the first hose 57 is guided and slidably located in the limiting groove 2.

[0031] In this embodiment, by utilizing the opening of the limiting groove 2, when the injection tube 56 is moved upward to adjust the position, the right end of the injection tube 56 can be slidably positioned in the limiting groove 2, so as to facilitate stable upward adjustment.

[0032] As a preferred embodiment, based on the above structure, preferably, the rotating wheel 55 is located on the right side of the vertical rod 6, and the right outer wall of the vertical rod 6 is evenly spaced with multiple protrusions used to cooperate with the injection assembly 5, and the upper and lower outer walls of the protrusions are symmetrically inclined.

[0033] In this embodiment, the protrusion provided on the right outer wall of the vertical rod 6 facilitates squeezing the rotating wheel 55, so that the rotating wheel 55 drives the movable rod 53 and the injection tube 56 to move right, so that the right end of the injection tube 56 moves to the upper left of the deposition box 13.

[0034] As a preferred embodiment, on the basis of the above structure, preferably, the absorption and transfer component 7 includes a bidirectional screw 71, a worm gear 72, a connecting block 73, a push rod 74, a piston plate 75, a collection box 76, a filter plate 77 and a second hose 78. The bidirectional screw 71 is connected to the inner side of the cabinet 1 with a bearing, and the right end of the bidirectional screw 71 passes through the cabinet 1 and is fixedly connected to the worm gear 72. The worm gear 72 is meshed with the worm 8. The left and right ends of the bidirectional screw 71 are threadedly sleeved with connecting blocks 73 on the outer sides, and push rods 74 are hinged on the outer sides of the two connecting blocks 73. The bottom ends of the push rods 74 are hinged to the upper end surface of the piston plate 75. The middle part of the piston plate 75 is inlaid with a collection box 76, and the filter plate 77 is fixed to the inner side of the bottom of the collection box 76. One end of the second hose 78 is fixedly connected to the top liquid outlet of the collection box 76, and the other end of the second hose 78 is fixedly connected to the liquid inlet of the connecting pipe 9.

[0035] In this embodiment, by providing the worm wheel 72, it is convenient to use the worm 8 to control the synchronous rotation adjustment of multiple bidirectional screw rods 71 ​​provided in the vertical direction, thereby facilitating the operation of the device.

[0036] As a preferred embodiment, based on the above structure, preferably, the two push rods 74 are symmetrically arranged on the left and right, the outer wall of the piston plate 75 is sealingly and slidingly connected to the inner wall of the deposition box 13, and the top inner wall of the deposition box 13 is inclined.

[0037] In this embodiment, the piston plate 75 that is continuously moved downward and sealed and slidably connected to the deposition box 13 is used to fully and completely absorb the precipitated sodium lignin sulfonate in the deposition box 13 to avoid any residue.

[0038] As a preferred embodiment, on the basis of the above structure, preferably, a material pump 11 is fixedly installed on the bottom rear outer wall of the cabinet 1, the output end of the material pump 11 is fixedly connected to a third hose 12, the input end of the material pump 11 is fixedly provided with a vertical pipe 10, and a plurality of connecting pipes 9 are respectively passed through and fixed on the rear end outer wall of the cabinet 1, and one end of the connecting pipe 9 located outside the cabinet 1 is embedded and connected with the vertical pipe 10.

[0039] In this embodiment, the vertical pipe 10 can simultaneously control the plurality of connecting pipes 9 and the plurality of second hoses 78 to start the suction work, and the third hose 12 can facilitate the proper transfer and collection of the sucked sodium lignin sulfonate.

[0040] The working principle of the utility model is as follows:

[0041] When in use, first connect one end of the first hose 57 to the sodium lignin sulfonate output device, and then start adding material toward the inside of the deposition box 13 through the injection pipe 56. When the deposition box 13 at the bottom of the cabinet 1 is full, stop conveying and start the motor 3. Use the threaded rod 4 to rotate and control the injection assembly 5 to start slowly moving up. When the rotating wheel 55 leaves the protruding portion of the outer wall of the vertical rod 6, the spring 54 can push the movable rod 53 and the injection pipe 56 to move stably to the left along the cross bar 52, so that the right end of the injection pipe 56 can be located in the limit groove 2 for stable lifting. When the rotating wheel 55 reaches the next protruding portion of the outer wall of the vertical rod 6, the rotating wheel 55 is compressed again and drives the movable rod 53 and the injection pipe 56 to move right, so that the right end of the injection pipe 56 extends to the upper left of another deposition box 13, and the injection can continue. Similarly, multiple deposition boxes 13 can be injected in sequence to achieve orderly injection and avoid waste caused by overflow of raw materials.

[0042] After the injection and static deposition are completed, the worm 8 can be manually rotated, and the worm gear 72 can be used to drive multiple bidirectional screws 71 to start rotating synchronously, so that the two connecting blocks 73 slide and gradually move away. At this time, the push rod 74 can be used to push the piston plate 75 into the deposition box 13, so that the bottom of the piston plate 75 is in contact with the liquid surface of the sodium lignin sulfonate, and the material pump 11 is started. The sodium lignin sulfonate precipitated in the deposition box 13 can be sucked out through the vertical pipe 10, the connecting pipe 9 and the second hose 78, and properly transferred and collected through the third hose 12. At the same time, the piston plate 75 is slowly moved downward so that the bottom of the piston plate 75 is always in contact with the liquid surface, which can ensure that the sodium lignin sulfonate precipitated in the deposition box 13 is fully and completely absorbed to avoid residue, and the filter plate 77 on the inner side of the bottom of the collection box 76 can also avoid sucking out the sediment;

[0043] Finally, the control piston plate 75 is raised and separated from the deposition box 13, and then the deposition box 13 is directly pulled out from the cabinet 1, and the sediment remaining at the bottom of the deposition box 13 can be processed.

[0044] The above are only preferred specific embodiments of the utility model and are not intended to limit the protection scope of the utility model; any equivalent changes, modifications, substitutions and variations made by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the protection scope determined by the claims.

Claims

1. A multi-layer deposition device for producing sodium lignin sulfonate composite nanofiltration membrane, comprising a cabinet (1), wherein a plurality of deposition boxes (13) are equidistantly arranged inside the cabinet (1) along its height direction, and the deposition boxes (13) are movably mounted on the cabinet (1), characterized in that: A limit groove (2) is provided in the middle of the left side of the cabinet (1); a motor (3) is fixedly installed on the upper left side of the cabinet (1); a vertically arranged threaded rod (4) is fixed to the output end of the motor (3); an injection assembly (5) is threadedly connected to the outer side of the threaded rod (4); the injection assembly (5) has an injection pipe (56) for passing through the limit groove (2) to inject material into the deposition box (13); a plurality of groups of absorption and transfer assemblies (7) for absorbing and transferring sodium lignin sulfonate are respectively provided above the plurality of deposition boxes (13); the plurality of absorption and transfer assemblies (7) are all driven by a worm (8) rotatably arranged on the right side outer wall of the cabinet (1); and the plurality of absorption and transfer assemblies (7) transfer the sodium lignin sulfonate to the outside of the cabinet (1) through a connecting pipe (9).

2. The multi-layer deposition device for producing a sodium lignin sulfonate composite nanofiltration membrane according to claim 1, characterized in that: A material pump (11) is fixedly mounted on the rear outer wall of the bottom of the cabinet (1); the output end of the material pump (11) is fixedly connected to a third hose (12); the input end of the material pump (11) is fixedly provided with a vertical pipe (10); a plurality of connecting pipes (9) are respectively penetrated and fixed on the rear end outer wall of the cabinet (1); one end of the connecting pipe (9) located outside the cabinet (1) is embedded and communicated with the vertical pipe (10).

3. The multi-layer deposition device for producing a sodium lignin sulfonate composite nanofiltration membrane according to claim 1, characterized in that: A vertical rod (6) is fixedly mounted on the left rear outer wall of the cabinet (1) by bolts, and a plurality of protrusions for use with the injection assembly (5) are provided at equal intervals on the right outer wall of the vertical rod (6), and the upper and lower outer walls of the protrusions are symmetrically inclined.

4. The multi-layer deposition device for producing a sodium lignin sulfonate composite nanofiltration membrane according to claim 1, characterized in that: The injection assembly (5) comprises a movable plate (51), a cross bar (52), a movable rod (53), a spring (54), a rotating wheel (55), an injection pipe (56) and a first hose (57). A through groove is provided inside the left end of the movable plate (51), in which a cross bar (52) is welded and fixed, the outer side of the cross bar (52) is slidably sleeved with the movable rod (53), the right side of the movable rod (53) is installed with a spring (54), the outer wall of the rear end of the movable rod (53) is rotatably installed with a rotating wheel (55), the front end of the movable rod (53) is fixedly sleeved on the middle outer side of the injection pipe (56), and one end of the first hose (57) is fixedly connected to the liquid inlet of the injection pipe (56).

5. The multi-layer deposition device for producing a sodium lignin sulfonate composite nanofiltration membrane according to claim 4, characterized in that: The right end of the movable plate (51) is threadedly sleeved on the outer side of the threaded rod (4), and one end of the injection pipe (56) away from the first hose (57) is guided and slidably located in the limiting groove (2).

6. The multi-layer deposition device for producing a sodium lignin sulfonate composite nanofiltration membrane according to claim 1, characterized in that: The absorption and transfer assembly (7) comprises a bidirectional screw (71), a worm gear (72), a connecting block (73), a push rod (74), a piston plate (75), a collecting box (76), a filter plate (77) and a second hose (78). The bidirectional screw (71) is connected to the inner side of the cabinet (1) by a bearing. The right end of the bidirectional screw (71) passes through the cabinet (1) and is fixedly connected to the worm gear (72). The worm gear (72) is meshed with the worm (8). The outer sides of the left and right ends of the bidirectional screw (71) are both threaded sleeves. A connecting block (73) is provided, and push rods (74) are hingedly connected to the outer sides of the two connecting blocks (73), and the bottom ends of the push rods (74) are hingedly connected to the upper end surface of the piston plate (75). A collecting box (76) is embedded and installed in the middle of the piston plate (75), and a filter plate (77) is fixed to the inner side of the bottom of the collecting box (76). One end of the second hose (78) is fixedly connected to the top liquid outlet of the collecting box (76), and the other end of the second hose (78) is fixedly connected to the liquid inlet of the connecting pipe (9).

7. The multi-layer deposition device for producing sodium lignin sulfonate composite nanofiltration membrane according to claim 6, characterized in that: The two push rods (74) are arranged symmetrically on the left and right, the outer wall of the piston plate (75) is sealingly and slidably connected to the inner wall of the deposition box (13), and the top inner wall of the deposition box (13) is inclined.

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