A flat ultrafiltration membrane production equipment for water treatment and its production line

Abstract

The invention relates to the technical field of ultrafiltration membrane production, and in particular discloses a flat ultrafiltration membrane production equipment for water treatment and a production line thereof, comprising: a coating device for coating on non-woven fabric, a pre-curing box; a rinsing box; and a drying box; the coating device is located at one end close to the rinsing box, and the other end of the rinsing box is aligned with the membrane inlet of the drying box, the pre-curing box is arranged between the coating device and the rinsing box, a transmission guide roller and a condensation pipe are respectively arranged inside the pre-curing box, a feed roller is arranged inside the feed opening, and a discharge roller is arranged inside the discharge opening, the transmission guide roller is located between the feed roller and the discharge roller, the transmission guide roller is tangent to the non-woven fabric with the coating, the condensation pipe is arranged outside close to the transmission guide roller, and the condensation pipe is used to supply condensation gas, thereby effectively realizing the automated production of flat ultrafiltration membranes, improving work efficiency, and ensuring the production quality of ultrafiltration membranes.

Description

Technical Field

[0001] The invention relates to the technical field of ultrafiltration membrane production, and in particular to a flat ultrafiltration membrane production device for water treatment and a production line thereof. Background Art

[0002] Ultrafiltration technology is a high-tech technology widely used in water purification, solution separation, concentration, and extraction of useful substances from wastewater. It is a high-tech in the field of wastewater purification and reuse. The characteristics of ultrafiltration technology are simple use process, no heating, energy saving, low-pressure operation, and small device footprint. It is widely used in pure water and ultrapure water equipment, medical sterile and pyrogenic raw water equipment, industrial beverages, drinking water, mineral water purification, industrial separation, concentration, purification, industrial wastewater treatment, electrophoretic paint, and electroplating oily wastewater treatment.

[0003] Existing ultrafiltration technology mainly uses ultrafiltration membrane as a filter element. The function of ultrafiltration membrane is based on the structure and pore size of the membrane, and is mainly used in water treatment, biopharmaceuticals, food processing and other fields. The pore size of ultrafiltration membrane is usually between 1-100 nanometers, which can screen out solute molecules smaller than the pore size, thereby separating particles with a molecular weight greater than 500 Daltons and a particle size greater than 2 to 20 nanometers. The principle of ultrafiltration membrane is mainly based on the combination of screening and adsorption. The process will not cause chemical changes in the substance, nor will it cause environmental pollution. Since the ultrafiltration membrane will not fall off impurities during operation, the purity of the ultrafiltrate is guaranteed. Ultrafiltration technology has the advantages of high-efficiency filtration, energy saving and environmental protection, and easy automation. It can effectively remove impurities such as suspended matter, colloids, and microorganisms in water, while allowing water, inorganic salts and small molecular organic matter to pass through. In addition, ultrafiltration membranes can also be used to separate and purify biological macromolecules, such as proteins, enzymes, etc., concentrate fruit juice, and isolate whey protein.

[0004] The existing ultrafiltration membrane production process needs to coat the surface of the non-woven fabric. Most of the existing coatings use polysulfone resin as the main coating material. Polysulfone resin, also known as polysulfone, is a white granular solid that is sealed in a cool and dry environment and is mainly used to produce polyester cotton and non-woven fabrics. In the production process of ultrafiltration membranes, polysulfone resin needs to be distributed on the surface of the non-woven fabric by scraping. The non-woven fabric after scraping the polysulfone resin enters the rinsing box for rinsing injection work to prevent the through holes on the membrane surface from being blocked during the coating work. When the rinsing injection hole is working, the coated The non-woven fabric of the first layer enters the rinsing box and is rinsed to clean the coating or impurities inside the filter holes on the surface of the ultrafiltration membrane. However, the existing production process mostly adopts the method of manual feeding and scraping, which cannot ensure uniform coating. In the process of feeding the non-woven fabric into the rinsing box for rinsing and filling the holes, since the coating is not cured after scraping, it is easy to cause partial falling of the coating during the rinsing process. In addition, due to the low efficiency of manual operation, the straightness of the ultrafiltration membrane cannot be ensured during the production process, which will also affect the production quality of the ultrafiltration membrane.

[0005] Reference patent publication number is "CN102580555B", and the patent name is "Continuous production process of micro- and ultrafiltration membranes and equipment thereof". The technical scheme discloses "a continuous production process of micro- and ultrafiltration membranes and equipment thereof, and the equipment includes a roll-out mechanism, a cloth receiving mechanism, a cloth storage mechanism, a glue scraping machine, a rinsing machine, a post-processing machine, a drying oven and a roll-up mechanism, and each mechanism is connected in sequence through a conveyor roller. The process is as follows: first, the non-woven fabric roll is unwound, and the unwound non-woven fabric is sequentially stored, glue scraped, rinsed, air-dried, post-processed, air-dried, dried, and rolled up. When the previous roll of non-woven fabric is about to be scraped off, the glue is scraped off, and the glue scraping is finished. , the next roll of non-woven fabric is connected with the previous roll of non-woven fabric, and the stored non-woven fabric is released during the connection. After the connection is completed, the next roll of non-woven fabric begins to unwind, and a new roll of non-woven fabric is continuously produced with the previous roll of non-woven fabric. "Although this technical solution can effectively realize the key steps of film scraping, rinsing, post-treatment, drying, and continuous production of finished film rolls in the process of flat membrane formation, and although it can realize automated actions, it can continuously change the fabric and continuously rewind the film without stopping the film scraping, thereby improving work efficiency, but it has not solved the problem that the coating is easily shed when it directly enters the rinsing station after the coating, which in turn affects the production quality of the ultrafiltration membrane.

[0006] Therefore, how to realize the automated production of flat ultrafiltration membranes is a technical problem that technicians currently need to solve. Summary of the invention

[0007] The object of the present invention is to provide a flat ultrafiltration membrane production device for water treatment and a production line thereof to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A flat ultrafiltration membrane production device for water treatment, comprising:

[0010] Coating device for coating nonwoven fabrics; pre-curing box; rinsing box; and drying box;

[0011] The coating device is located near one end of the rinsing box, and the other end of the rinsing box is aligned with the film inlet of the drying box, the pre-curing box is arranged between the coating device and the rinsing box, and the two ends of the top of the pre-curing box are respectively provided with a feed opening and a discharge opening, the feed opening is close to the outside of the coating device, and the discharge opening is connected with one end of the rinsing box, the interior of the pre-curing box is respectively provided with a transmission guide roller and a condensation pipe, the interior of the feed opening is provided with a feed roller, the interior of the discharge opening is provided with a discharge roller, the transmission guide roller is located between the feed roller and the discharge roller, and the transmission guide roller is tangent to the non-woven fabric with the coating, the condensation pipe is arranged outside near the transmission guide roller, and the condensation pipe is used to supply condensation gas;

[0012] The rinsing box includes a tensioning guide roller and a spray pipe, and a plurality of the tensioning guide roller and the spray pipe are provided, and the plurality of the tensioning guide rollers and the plurality of the spray pipes are evenly distributed inside the rinsing box, and the spray pipe is arranged outside near the tensioning guide roller, and the plurality of the tensioning guide rollers are tangent to the non-woven fabric with the pre-cured coating;

[0013] Two air outlet plates and a transport plane are arranged inside the drying box, and the transport plane is located between the two air outlet plates. One side of the two air outlet plates is aligned with the two sides of the transport plane respectively, and the two air outlet plates are movably arranged inside the drying box, one end of the transport plane is close to the rinsing box, and a plurality of air outlet holes are arranged on one side of the two air outlet plates facing the transport plane, and the air outlet holes are used to guide out hot air, and the transport plane is used to transport the membrane to be heated.

[0014] Preferably, the coating device includes a carrying plate and a supporting plate, the bottom of the supporting plate is slidably arranged just above the carrying plate, a movable plate is movably arranged outside the supporting plate, a liquid discharge scraper and a rotating circular roller are respectively arranged on one side of the movable plate, the liquid discharge scraper is movably arranged on the movable plate, and the liquid outlet of the liquid discharge scraper is aligned with the rotating circular roller, and the liquid outlet of the liquid discharge scraper is used to output the polysulfone coating liquid.

[0015] Preferably, a pushing mechanism is further provided on one side of the movable plate, a power output end of the pushing mechanism is fixedly connected to the liquid outlet scraper, and the pushing mechanism is used to control the movable range of the liquid outlet scraper.

[0016] Preferably, a hot air device is provided on the outside of the drying box body, and the hot air device is connected to a plurality of the air outlet holes one by one, and the hot air device is used to supply hot air to the inside of the air outlet holes.

[0017] Preferably, the drying box also includes at least two sets of lifting mechanisms, the two sets of lifting mechanisms are correspondingly arranged inside the drying box, and the other sides of the two air outlet panels are connected one by one to the power output ends of the two sets of lifting mechanisms, and the lifting mechanism is used to control the lifting height of the air outlet panels.

[0018] Preferably, a plurality of through holes are evenly distributed on the outside of the condensation pipe and the spray pipe, and one end of the condensation pipe is used to input condensation gas, and one end of the spray pipe is used to input cleaning liquid, and the other ends of the spray pipe and the condensation pipe are both sealed structures.

[0019] Preferably, a fixed plate is also provided on the top of the supporting plate, the outside of the fixed plate is fixed to the top of the supporting plate, and the top of the supporting plate is slidably connected to one side of the fixed plate, an adjusting guide roller is provided directly above the supporting plate, the outside of the adjusting guide roller is in contact with the non-woven fabric to be coated, a linear moving module is provided on the outside of the fixed plate, the outside of the supporting plate is connected to a slider of the linear moving module, and the linear moving module is used to control the sliding distance of the supporting plate.

[0020] Preferably, it also includes a material storage plate, which is close to the cloth feeding end of the coating device, and one side of the material storage plate is respectively provided with a plurality of material storage rollers and a movable plate, the movable plate is slidably arranged on the material storage plate, and one side of the movable plate corresponds to one side of the material storage plate, a plurality of the material storage rollers are evenly distributed on one side of the movable plate, and a lifting cylinder is arranged at the bottom of the movable plate, the power output end of the lifting cylinder is connected to the movable plate, the lifting cylinder is used to control the lifting height of the movable plate, and a plurality of the material storage rollers are tangent to the non-woven fabric to be coated.

[0021] Preferably, it also includes a traction device, which is arranged near the outside of the drying box body, and the traction device includes an adjusting plate and a mounting plate, one end of the adjusting plate is hinged to the mounting plate, and the other end of the adjusting plate is provided with a traction roller, and the traction roller is tangent to the dried membrane, and an adjusting cylinder is provided on one side of the mounting plate, the power output end of the adjusting cylinder is connected to the adjusting plate, and the adjusting cylinder is used to control the movable range of the adjusting plate.

[0022] On the other hand, the present application also provides a flat ultrafiltration membrane production line for water treatment, comprising the flat ultrafiltration membrane production equipment for water treatment as described in any of the above items;

[0023] And a roll-out device and a roll-up device;

[0024] The unwinding device is arranged outside the coating device, and the winding device is arranged near the discharge port of the drying box. The unwinding device is used to supply the non-woven fabric to be coated, and the winding device is used to recover the processed film.

[0025] Compared with the prior art, the present invention provides a flat ultrafiltration membrane production equipment for water treatment and a production line thereof, which has the following beneficial effects: a coating device for coating non-woven fabrics; a pre-curing box; a rinsing box; and a drying box are provided; the coating device is located at one end close to the rinsing box, and the pre-curing box is provided between the coating device and the rinsing box, so that the non-woven fabric with the coating can be transported into the pre-curing box through the coating device, and a feed opening and a discharge opening are respectively provided at both ends of the top of the pre-curing box, and the feed opening is close to the coating device. The discharge opening is connected to one end of the rinsing box, so that the coated non-woven fabric is output from the pre-consolidation box to the rinsing box for rinsing. A transmission guide roller and a condensation pipe are respectively arranged inside the pre-consolidation box, a feed roller is arranged inside the feed opening, and a discharge roller is arranged inside the discharge opening, so that the transmission guide roller is located between the feed roller and the discharge roller, so that the coated non-woven fabric can be input through the feed roller of the feed opening, transmitted to the discharge roller by the transmission guide roller, and output through the discharge opening. To the inside of the rinsing box, the transmission guide roller is tangent to the coated non-woven fabric, thereby ensuring the straightness of the coated non-woven fabric, and the condensation pipeline is arranged outside the transmission guide roller, and the condensation pipeline is used to supply condensation gas, thereby realizing the condensation pre-solidification of the coated non-woven fabric by the condensation gas, effectively ensuring that the coating on the non-woven fabric is pre-solidified before the coated non-woven fabric enters the rinsing box for rinsing, thereby preventing the coating from falling off. The rinsing box includes a tensioning guide roller and a spraying pipeline. The tensioning guide roller and the spraying pipe are connected Several tensioning guide rollers and several spraying pipes are evenly distributed inside the rinsing box, and the spraying pipes are arranged outside the tensioning guide rollers. The tensioning guide rollers are tangent to the non-woven fabric with pre-fixed coating, so that the pre-fixed coated non-woven fabric enters the rinsing box and is transported through the tensioning guide rollers. During the transportation process, the surface of the non-woven fabric with pre-fixed coating is sprayed and cleaned through the spraying pipe, which effectively realizes that both sides of the non-woven fabric with pre-fixed coating are cleaned evenly, and the injection holes generate ultrafiltration membranes during the cleaning process;The other end of the rinsing box is also aligned with the membrane inlet of the drying box, so that the cleaned ultrafiltration membrane enters the drying box for drying. Two air outlet plates and a transport plane are arranged inside the drying box, and the transport plane is located between the two air outlet plates, so that one side of the two air outlet plates is aligned with the two sides of the transport plane respectively, and a plurality of air outlet holes are arranged on the sides of the two air outlet plates facing the transport plane, and the air outlet holes are used to guide out the hot air, and the transport plane is used to transport the membrane to be heated, so that one end of the transport plane is close to the rinsing box, thereby achieving The membrane to be heated enters the drying box through one end of the transport plane, and the two air outlet plates simultaneously blow air to dry and solidify both sides of the membrane to be heated. The membrane on the transport plane can also be kept in a suspended state during the hot air solidification process, so that the membrane is fully heated. The two air outlet plates are movably arranged inside the drying box to facilitate the adjustment of the distance between the two air outlet plates and the membrane on the transport plane, ensuring that both sides of the membrane on the transport plane are heated evenly, effectively realizing the automated production of flat ultrafiltration membranes, improving work efficiency and ensuring production quality. ; BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the structure of the coating device in the present invention.

[0029] Figure 3 It is a schematic diagram of the external structure of the pre-fixing box and the rinsing box in the present invention.

[0030] Figure 4 It is a schematic diagram of the internal structure of the pre-fixing box and the rinsing box in the present invention.

[0031] Figure 5 It is a schematic diagram of the drying box structure in the present invention.

[0032] Figure 6 It is a schematic diagram of the material storage plate structure in the present invention.

[0033] Figure 7 It is a schematic diagram of the structure of the traction device in the present invention.

[0034] Figure 8 It is a schematic structural diagram of the coating device in the present invention from another viewing angle.

[0035] As shown in the figure: 1. coating device; 2. pre-curing box; 3. rinsing box; 4. drying box; 5. storage plate; 6. traction device; 11. load-bearing plate; 12. support plate; 13. moving plate; 21. feeding opening; 22. discharging opening; 23. transmission guide roller; 24. condensing pipe; 31. tensioning guide roller; 32. spray pipe; 41. air outlet plate; 42. transportation plane; 43. air outlet hole ; 44. Hot air device; 45. Lifting mechanism; 51. Storage roller body; 52. Movable plate; 53. Lifting cylinder; 61. Adjusting plate; 62. Mounting plate; 63. Traction roller; 64. Adjusting cylinder; 111. Fixed plate; 112. Linear moving module; 121. Adjusting guide roller; 131. Liquid scraper; 132. Rotating round roller; 133. Pushing mechanism; 211. Feed roller; 221. Discharge roller. DETAILED DESCRIPTION

[0036] The preferred embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the preferred embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0037] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The singular forms of "a", "said" and "the" used in this application and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] In the description of the present application, it should be understood that the terms "thickness", "up", "down", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application; in addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features; thus, it is limited that "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly including one or more of the features.

[0040] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0042] refer to Figures 1 to 8, a flat ultrafiltration membrane production equipment for water treatment, comprising: a coating device 1 for coating on non-woven fabric; a pre-curing box 2; a rinsing box 3; and a drying box 4; The coating device 1 is located near one end of the rinsing box 3, and the other end of the rinsing box 3 is aligned with the film inlet of the drying box 4. The pre-curing box 2 is arranged between the coating device 1 and the rinsing box 3, and the two ends of the top of the pre-curing box 2 are respectively provided with a feed opening 21 and a discharge opening 22, the feed opening 21 is close to the outside of the coating device 1, and the discharge opening 22 is communicated with one end of the rinsing box 3, and the interior of the pre-curing box 2 is respectively provided with a transmission guide roller 23 and a condensation pipe 24, a feed roller 211 is arranged inside the feed opening 21, and a discharge roller 221 is arranged inside the discharge opening 22, the transmission guide roller 23 is located between the feed roller 211 and the discharge roller 221, and the transmission guide roller 23 is tangent to the coated non-woven fabric, and the condensation pipe 24 is arranged outside near the transmission guide roller 23, and the condensation pipe 24 is used to supply condensation gas; The rinsing box 3 includes a tensioning guide roller 31 and a spray pipe 32. The tensioning guide roller 31 and the spray pipe 32 are both provided with a plurality of them. The plurality of tensioning guide rollers 31 and the plurality of spray pipes 32 are evenly distributed inside the rinsing box 3, and the spray pipe 32 is arranged outside near the tensioning guide roller 31. The plurality of tensioning guide rollers 31 are tangent to the non-woven fabric with the pre-cured coating. Two air outlet panels 41 and a transport plane 42 are provided inside the drying box 4, and the transport plane 42 is located between the two air outlet panels 41. One side of the two air outlet panels 41 is aligned with the two sides of the transport plane 42 respectively, and the two air outlet panels 41 are movably arranged inside the drying box 4, one end of the transport plane 42 is close to the rinsing box 3, and a plurality of air outlet holes 43 are provided on one side of the two air outlet panels 41 facing the transport plane 42, the air outlet holes 43 are used to guide out hot air, and the transport plane 42 is used to transport the membrane to be heated.

[0043] Specifically, the coating device 1 includes a carrying plate 11 and a supporting plate 12, the bottom of the supporting plate 12 is slidably arranged just above the carrying plate 11, and a movable plate 13 is movably arranged outside the supporting plate 12, and a liquid discharge scraper 131 and a rotating circular roller 132 are respectively arranged on one side of the movable plate 13, the liquid discharge scraper 131 is movably arranged on the movable plate 13, and the liquid outlet of the liquid discharge scraper 131 is aligned with the rotating circular roller 132, and the liquid outlet of the liquid discharge scraper 131 is used to output the polysulfone coating liquid.

[0044] Specifically, a pushing mechanism 133 is further provided on one side of the movable plate 13 , a power output end of the pushing mechanism 133 is fixedly connected to the liquid outlet scraper 131 , and the pushing mechanism 133 is used to control the movable range of the liquid outlet scraper 131 .

[0045] Specifically, a hot air device 44 is disposed outside the drying box body 4 , and the hot air device 44 is connected to a plurality of the air outlet holes 43 one by one, and the hot air device 44 is used to supply hot air to the inside of the air outlet holes 43 .

[0046] Specifically, the drying box 4 also includes at least two groups of lifting mechanisms 45, the two groups of lifting mechanisms 45 are correspondingly arranged inside the drying box 4, and the other sides of the two air outlet panels 41 are connected one by one to the power output ends of the two groups of lifting mechanisms 45, and the lifting mechanisms 45 are used to control the lifting height of the air outlet panels 41.

[0047] Specifically, a plurality of through holes are evenly distributed on the outside of the condensation pipe 24 and the spray pipe 32, and one end of the condensation pipe 24 is used to input condensation gas, and one end of the spray pipe 32 is used to input cleaning liquid, and the other ends of the spray pipe 32 and the condensation pipe 24 are both sealed structures.

[0048] Specifically, a fixed plate 111 is also provided on the top of the bearing plate 11, the outside of the fixed plate 111 is fixed to the top of the bearing plate 11, and the top of the support plate 12 is slidably connected to one side of the fixed plate 111, an adjusting guide roller 121 is provided directly above the support plate 12, the outside of the adjusting guide roller 121 is in contact with the non-woven fabric to be coated, a linear moving module 112 is provided on the outside of the fixed plate 111, the outside of the support plate 12 is connected to a slider of the linear moving module 112, and the linear moving module 112 is used to control the sliding distance of the support plate 12.

[0049] Specifically, it also includes a material storage plate 5, which is close to the cloth feeding end of the coating device 1, and one side of the material storage plate 5 is respectively provided with a plurality of material storage rollers 51 and a movable plate 52, the movable plate 52 is slidably arranged on the material storage plate 5, and one side of the movable plate 52 corresponds to one side of the material storage plate 5, a plurality of the material storage rollers 51 are evenly distributed on one side of the movable plate 52, and a lifting cylinder 53 is arranged at the bottom of the movable plate 52, the power output end of the lifting cylinder 53 is connected to the movable plate 52, and the lifting cylinder 53 is used to control the lifting height of the movable plate 52, and a plurality of the material storage rollers 51 are tangent to the non-woven fabric to be coated.

[0050] Specifically, it also includes a traction device 6, which is arranged on the outside near the drying box body 4, and the traction device 6 includes an adjusting plate 61 and a mounting plate 62, one end of the adjusting plate 61 is hinged on the mounting plate 62, and the other end of the adjusting plate 61 is provided with a traction roller 63, the traction roller 63 is tangent to the dried diaphragm, one side of the mounting plate 62 is provided with an adjusting cylinder 64, the power output end of the adjusting cylinder 64 is connected to the adjusting plate 61, and the adjusting cylinder 64 is used to control the movable range of the adjusting plate 61.

[0051] Embodiment 1, in order to realize automatic coating of non-woven fabrics and ensure uniform coating, since the existing ultrafiltration membrane needs to coat the surface of the non-woven fabric with a polysulfone coating during the production process, but the manual scraping method is inefficient, and the existing coating equipment cannot completely guarantee that the polysulfone coating is evenly distributed on the surface of the non-woven fabric, in this embodiment: a coating device 1 for coating the non-woven fabric is provided; a pre-curing box 2; a rinsing box 3; and a drying box 4; the coating device 1 is located at one end close to the rinsing box 3, wherein the coating device 1 includes a bearing plate 11 and a support plate 12, and the support plate The bottom of the component 12 is slidably arranged just above the supporting plate 11, and a movable plate 13 is movably arranged outside the supporting plate 12, and a liquid discharge scraper 131 and a rotating circular roller 132 are respectively arranged on one side of the movable plate 13, and the liquid discharge scraper 131 is movably arranged on the movable plate 13, so that the liquid outlet of the liquid discharge scraper 131 is aligned with the rotating circular roller 132, and the rotating circular roller 132 can be tangent to the non-woven fabric, so that when the rotating circular roller 132 drives the non-woven fabric to move, the liquid outlet of the liquid discharge scraper 131 is used to output the polysulfone coating liquid to the surface of the non-woven fabric, thereby effectively realizing the coating action on the surface of the non-woven fabric.

[0052] It should be noted that, in order to adjust the distance between the liquid discharge scraper 131 and the rotating circular roller 132, and to coat the non-woven fabric on the rotating circular roller 132, a pushing mechanism 133 is also provided on one side of the movable plate 13, and the power output end of the pushing mechanism 133 is fixedly connected to the liquid discharge scraper 131, so that the pushing mechanism 133 is used to control the movable range of the liquid discharge scraper 131. When the pushing mechanism 133 is pushed out, it can drive the liquid discharge scraper 131 to approach the rotating circular roller 132, and the distance between the liquid discharge scraper 131 and the rotating circular roller 132 becomes smaller. When the power output end of the pushing mechanism 133 is retracted, it can drive the liquid discharge scraper 131 away from the rotating circular roller 132, thereby effectively realizing the polysulfone coating liquid coating of non-woven fabrics of different thicknesses and sizes, and ensuring uniform coating.

[0053] It should also be noted that, in order to ensure that the non-woven fabric maintains tension and straightness when entering the coating device 1, so that the polysulfone coating can be evenly coated on the surface of the non-woven fabric during subsequent coating, a fixed plate 111 is provided on the top of the load-bearing plate 11, the outside of the fixed plate 111 is fixed to the top of the load-bearing plate 11, and the top of the support plate 12 is slidably connected to one side of the fixed plate 111, and an adjustment guide roller 121 is provided directly above the support plate 12, and the outside of the adjustment guide roller 121 is fitted with the non-woven fabric to be coated, and a linear moving module 112 is provided on the outside of the fixed plate 111, so that the outside of the support plate 12 is connected to the slider of the linear moving module 112, and the linear moving module 112 can be used to control the sliding distance of the support plate 12;

[0054] When the slider of the linear moving module 112 drives the support plate 12 to slide in the opposite direction of the liquid discharge scraper 131, at this time, the spacing between the adjusting guide roller 121 and the rotating round roller 132 becomes larger, thereby achieving the tightening of the coated non-woven fabric at the adjusting guide roller 121 and the rotating round roller 132. The linear moving module 112 can adopt a screw transmission module, which can connect the outside of the support plate 12 with the slider of the ball screw, and then the slider performs a linear reciprocating motion during the rotation of the screw, thereby controlling the sliding distance of the support plate 12;

[0055] When the support plate 12 slides, it drives the adjustment guide roller 121 to move in a straight line. Since the outer portion of the adjustment guide roller 121 fits the non-woven fabric to be coated, it ensures that the coated non-woven fabric can enter the coating device 1 straightly, effectively preventing the non-woven fabric from having a poor coating effect due to surface folding or unevenness when entering the coating device 1 for coating.

[0056] Embodiment 2: In order to realize automatic condensation solidification of the non-woven fabric with coating, the non-woven fabric with coating is pre-cured to prevent the coating from falling off. Since the non-woven fabric with coating is directly put into the rinsing station in the existing ultrafiltration membrane production process, direct rinsing easily causes the coating on the surface of the non-woven fabric to fall off partially, so the non-woven fabric with coating needs to be pre-cured to prevent the polysulfone coating from falling off due to direct rinsing. In this embodiment: a coating device 1 is provided; a pre-curing box 2; and a rinsing box 3; the coating device 1 is located near one end of the rinsing box 3, and the other end of the rinsing box 3 is aligned with the film inlet of the drying box 4, and the pre-curing box 2 is arranged between the coating device 1 and the rinsing box 3, and a feed opening 21 and a discharge opening 22 are respectively arranged at both ends of the top of the pre-curing box 2, so that the feed opening 21 is close to the outside of the coating device 1, and the discharge opening 22 is connected to one end of the rinsing box 3, so that it is convenient for the coating device 1 to feed the coated non-woven fabric into the pre-curing box through the feed opening 21. Inside the pre-curing box 2, a transmission guide roller 23 and a condensation pipe 24 are respectively arranged inside the pre-curing box 2, and a feed roller 211 is arranged inside the feed opening 21, and a discharge roller 221 is arranged inside the discharge opening 22, and the transmission guide roller 23 is located between the feed roller 211 and the discharge roller 221, and the transmission guide roller 23 is tangent to the coated non-woven fabric, and the coated non-woven fabric is input into the feed opening 21 through the feed roller 211, and the coated non-woven fabric is transported through the transmission guide roller 23 To the discharging roller 221, the coated non-woven fabric is discharged through the discharging roller 221, and the condensation pipe 24 is arranged on the outside close to the driving guide roller 23, so that in the process of the driving guide roller 23 conveying the coated non-woven fabric to the discharging roller 221, the condensation pipe 24 is used to supply condensation gas to the inside of the pre-curing box 2, so as to cool and condense the coating on the coated non-woven fabric inside the pre-curing box 2, and effectively ensure that the coating is pre-cured before the coated non-woven fabric enters the inside of the rinsing box 3.

[0057] It should be noted that in order to achieve the effect of outputting condensed gas from the condensation duct 24, a number of through holes are evenly distributed on the outside of the condensation duct 24, and one end of the condensation duct 24 is used to input condensed gas, that is, one end of the condensation duct 24 is connected to the air supply device. Since the other end of the condensation duct 24 is a sealed structure, when the air supply device inputs condensed gas into the condensation duct 24, since the other end of the condensation duct 24 is a sealed structure, the condensed gas can only be discharged from a number of through holes on the outside of the condensation duct 24.

[0058] Embodiment 3, in order to realize the automatic rinsing and injection operation on the surface of the non-woven fabric after the condensation pre-solidification coating, since impurities or coatings will block the pores on the surface of the membrane during the production process of the ultrafiltration membrane, the surface of the ultrafiltration membrane needs to be rinsed and cleaned. In this embodiment: a coating device 1; a pre-estimation box; a rinsing box 3; and a drying box 4 are provided; the coating device 1 is located at one end of the rinsing box 3, and the other end of the rinsing box 3 is aligned with the membrane inlet of the drying box 4, the pre-solidification box 2 is arranged between the coating device 1 and the rinsing box 3, the rinsing box 3 includes a tensioning guide roller 31 and a spray pipe 32, and by tensioning the guide roller 31 and the spray pipe 32 are provided with a plurality of tensioning guide rollers 31 and a plurality of spray pipes 32 are evenly distributed inside the rinsing box 3, so that the plurality of tensioning guide rollers 31 can be distributed in sequence along the conveying direction of the rinsing box 3, and the plurality of tensioning guide rollers 31 are tangent to the non-woven fabric with the pre-coated layer, thereby ensuring that the non-woven fabric with the pre-coated layer is conveyed through the plurality of tensioning guide rollers 31. Since the spray pipe 32 is arranged outside the tensioning guide roller 31, the cleaning liquid can be output through the spray pipe 32. When the tensioning guide roller 31 is conveying, the spray pipe 32 sprays the cleaning liquid on the coated parts outside the tensioning guide roller 31 clearly to prevent the surface pores of the diaphragm from being blocked.

[0059] In this embodiment, it should be additionally explained that, in order to supply liquid to a plurality of through holes so as to spray and clean the coated non-woven fabric in the rinsing box 3, a plurality of through holes are evenly distributed on the outside of the spray pipe 32, and one end of the spray pipe 32 is used to input cleaning liquid. The other end of the spray pipe 32 is a sealed structure, thereby achieving the cleaning liquid being discharged through the through holes of the spray pipe 32 to spray and clean the coated non-woven fabric in the rinsing box 3.

[0060] It should also be added that if Figure 4 As shown, a plurality of rotating guide rollers and a rotating motor are arranged inside the rinsing box 3. The plurality of rotating guide rollers are evenly arranged inside the rinsing box 3, so that the power output end of the rotating motor is transmission-connected with one end of the rotating guide roller, so that the rotating motor can drive the rotating guide roller to rotate, and the rotating guide roller can be arranged on the top of the tensioning guide roller 31, and the plurality of rotating guide rollers are also aligned, two of which are respectively close to the film inlet and film outlet ends of the rinsing box 3, and the membrane to be cleaned is driven into the rinsing box 3 by the rotating guide roller at the inlet end, and the cleaned membrane is output to the inside of the drying box 4 through the rotating guide roller at the outlet end.

[0061] Embodiment 4, in order to realize the automatic suspension heating and air-drying coating action of the non-woven fabric after rinsing, since the ultrafiltration membrane after the rinsing injection hole will carry liquid, the non-woven fabric with the coating needs to be heated and air-dried to remove excess moisture from the membrane. In this embodiment: a coating device 1 for coating the non-woven fabric, a pre-curing box 2, a rinsing box 3, and a drying box 4 are provided; the coating device 1 is located near one end of the rinsing box 3, and the other end of the rinsing box 3 is aligned with the membrane inlet of the drying box 4, so that the pre-curing box The coating body 2 is arranged between the coating device 1 and the rinsing box 3, and the non-woven fabric can be coated with a coating by the coating device 1, and the non-woven fabric with the coating is put into the pre-curing box 2 for coating pre-curing, and the non-woven fabric after coating pre-curing enters the rinsing box 3, and the non-woven fabric after coating pre-curing is spray-cleaned by the rinsing box 3. Since the other end of the rinsing box 3 is aligned with the film inlet of the drying box 4, it is convenient for the non-woven fabric inside the rinsing box 3 to enter the drying box 4, and the non-woven fabric is dried as a whole by the drying box 4; By arranging two air outlet plates 41 and a transport plane 42 inside the drying box 4, the transport plane 42 is located between the two air outlet plates 41, and then the transport plane 42 can be used to transport the membrane to be heated, so that one side of the two air outlet plates 41 is aligned with the two sides of the transport plane 42 respectively, and the two air outlet plates 41 are movably arranged inside the drying box 4, so that one end of the transport plane 42 is close to the rinsing box 3, and the two air outlet plates 41 are provided with a plurality of air outlet holes 43 on the side facing the transport plane 42, and the air outlet holes 43 are used to guide the hot air, and the two air outlet plates 41 simultaneously blow hot air to the transport plane 42, so as to form hot air convection, ensure that the hot air inside the drying box 4 is uniform, and can support the membrane to be heated on the transport plane 42, thereby realizing a suspended drying action, effectively ensuring that the ultrafiltration membrane is heated uniformly, and improving the coating curing efficiency.

[0062] It should be noted that in order to achieve the effect of supplying hot air to the air outlet holes 43, a hot air device 44 is provided on the outside of the drying box 4, and the hot air device 44 is connected to several air outlet holes 43 one by one, so that the hot air device 44 can be used to supply hot air to the inside of the air outlet holes 43.

[0063] It should be noted that in order to adjust the distance between the two air outlet panels 41 and facilitate heating of membranes of different thicknesses, the drying box 4 also includes at least two sets of lifting mechanisms 45. The two sets of lifting mechanisms 45 are correspondingly arranged inside the drying box 4, so that the other sides of the two air outlet panels 41 are connected one by one to the power output ends of the two sets of lifting mechanisms 45, and then the lifting mechanisms 45 can be used to control the lifting height of the air outlet panels 41, thereby effectively facilitating the adjustment of the distance between the two air outlet panels 41 and the transport plane 42.

[0064] Embodiment 5, in order to realize continuous production in batch production, production needs to be carried out without stopping during the mass production process. In combination with the above embodiments, this embodiment also provides a flat ultrafiltration membrane production line for water treatment, including a flat ultrafiltration membrane production equipment for water treatment in any of the above embodiments; and a unwinding device and a winding device; the unwinding device is arranged on the outside near the coating device 1, and the winding device is arranged at the discharge port near the drying box 4. The unwinding device is used to supply non-woven fabric to be coated, and the winding device is used to recover the processed membrane. The unwinding device can continuously supply non-woven fabric to the inside of the coating device 1, and the dried membrane is continuously wound up by the winding device, which is effectively suitable for mass production and can realize continuous processing during the mass production process.

[0065] In view of the above description, further improvements are made. When the coating device 1 is supplied with non-woven fabric, the unwinding part works continuously without stopping. When the non-woven fabric is continuously unrolled, the condensation pre-solidification coating takes a certain amount of time, which will cause non-woven fabric accumulation. Once the non-woven fabric material is loosely accumulated, it will affect the surface flatness of the coating area during coating, and it cannot be ensured that the material enters the coating device 1 straightly. Therefore, it is necessary to prevent too much non-woven fabric material from loosely accumulating at the feed end of the coating device 1. Therefore, in this embodiment, a storage plate 5 is also included. The storage plate 5 is placed close to the feed end of the coating device 1. At the cloth end, a plurality of storage rollers 51 and movable plates 52 are respectively arranged on one side of the storage plate 5, so that the movable plate 52 is slidably arranged on the storage plate 5, and one side of the movable plate 52 corresponds to one side of the storage plate 5, and a plurality of storage rollers 51 are evenly distributed on one side of the movable plate 52, and a lifting cylinder 53 is arranged at the bottom of the movable plate 52, and the power output end of the lifting cylinder 53 is connected to the movable plate 52, so that the lifting height of the movable plate 52 is controlled by the lifting cylinder 53, so that the plurality of storage rollers 51 are tangent to the non-woven fabric to be coated.

[0066] In view of the above description, further limitations are made. In order to ensure the tension of the ultrafiltration membrane roll during the winding process and keep the ultrafiltration membrane roll straight, a traction device 6 is provided. The traction device 6 is arranged on the outside close to the drying box 4. The traction device 6 includes an adjusting plate 61 and a mounting plate 62. One end of the adjusting plate 61 is hinged on the mounting plate 62. A traction roller 63 is provided at the other end of the adjusting plate 61 so that the traction roller 63 is tangent to the dried membrane. An adjusting cylinder 64 is provided on one side of the mounting plate 62, and the power output end of the adjusting cylinder 64 is connected to the adjusting plate 61. Therefore, the adjusting cylinder 64 is used to control the movable range of the adjusting plate 61.

[0067] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the description of each embodiment has its own emphasis. For the part that is not described in detail in a certain embodiment, refer to the relevant description of other embodiments. Those skilled in the art should also know that the actions and modules involved in the description are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0068] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A flat ultrafiltration membrane production equipment for water treatment, characterized in that: include: Coating device for coating nonwoven fabrics; pre-curing box; rinsing box; and drying box; The coating device is located near one end of the rinsing box, and the other end of the rinsing box is aligned with the film inlet of the drying box, the pre-curing box is arranged between the coating device and the rinsing box, and the two ends of the top of the pre-curing box are respectively provided with a feed opening and a discharge opening, the feed opening is close to the outside of the coating device, and the discharge opening is communicated with one end of the rinsing box, the interior of the pre-curing box is respectively provided with a transmission guide roller and a condensation pipe, the interior of the feed opening is provided with a feed roller, the interior of the discharge opening is provided with a discharge roller, the transmission guide roller is located between the feed roller and the discharge roller, and the transmission guide roller is tangent to the coated non-woven fabric, the condensation pipe is arranged outside near the transmission guide roller, and the condensation pipe is used to supply condensation gas; The rinsing box includes a tensioning guide roller and a spray pipe, and the tensioning guide roller and the spray pipe are both provided with a plurality of them, and the plurality of the tensioning guide rollers and the plurality of the spray pipes are evenly distributed inside the rinsing box, and the spray pipe is arranged outside near the tensioning guide roller, and the plurality of the tensioning guide rollers are tangent to the non-woven fabric with the pre-cured coating; Two air outlet plates and a transport plane are arranged inside the drying box, the transport plane is located between the two air outlet plates, one side of the two air outlet plates is aligned with the two sides of the transport plane respectively, and the two air outlet plates are movably arranged inside the drying box, one end of the transport plane is close to the rinsing box, and the two air outlet plates are arranged with a plurality of air outlet holes on one side facing the transport plane, the air outlet holes are used to guide out hot air, and the transport plane is used to transport the membrane to be heated; The coating device comprises a bearing plate and a supporting plate, the bottom of the supporting plate is slidably arranged just above the bearing plate, a movable plate is movably arranged outside the supporting plate, a liquid discharge scraper and a rotating circular roller are respectively arranged on one side of the movable plate, the liquid discharge scraper is movably arranged on the movable plate, and the liquid outlet of the liquid discharge scraper is aligned with the rotating circular roller, and the liquid outlet of the liquid discharge scraper is used to output the polysulfone coating liquid; A pushing mechanism is also provided on one side of the movable plate, a power output end of the pushing mechanism is fixedly connected to the liquid discharge scraper, and the pushing mechanism is used to control the range of movement of the liquid discharge scraper; The drying box body also includes at least two groups of lifting mechanisms, which are correspondingly arranged inside the drying box body, and the other sides of the two air outlet panels are connected one by one to the power output ends of the two groups of lifting mechanisms, and the lifting mechanisms are used to control the lifting height of the air outlet panels.

2. A flat ultrafiltration membrane production equipment for water treatment according to claim 1, characterized in that: A hot air device is arranged outside the drying box body, and the hot air device is connected to a plurality of the air outlet holes one by one, and the hot air device is used to supply hot air to the inside of the air outlet holes.

3. A flat ultrafiltration membrane production equipment for water treatment according to claim 1, characterized in that: The outside of the condensation pipe and the spray pipe are evenly distributed with a plurality of through holes, and one end of the condensation pipe is used to input condensation gas, and one end of the spray pipe is used to input cleaning liquid. The other ends of the spray pipe and the condensation pipe are both sealed structures.

4. A flat ultrafiltration membrane production equipment for water treatment according to claim 1, characterized in that: A fixed plate is also arranged on the top of the bearing plate, the outside of the fixed plate is fixed on the top of the bearing plate, and the top of the supporting plate is slidably connected to one side of the fixed plate, an adjusting guide roller is arranged directly above the supporting plate, the adjusting guide roller is tangent to the non-woven fabric to be coated, a linear moving module is arranged on the outside of the fixed plate, the outside of the supporting plate is connected to a slider of the linear moving module, and the linear moving module is used to control the sliding distance of the supporting plate.

5. The flat ultrafiltration membrane production equipment for water treatment according to claim 1, characterized in that: It also includes a material storage plate, which is close to the cloth feeding end of the coating device, and one side of the material storage plate is respectively provided with a plurality of material storage rollers and a movable plate, the movable plate is slidably arranged on the material storage plate, and one side of the movable plate corresponds to one side of the material storage plate, a plurality of the material storage rollers are evenly distributed on one side of the movable plate, and a lifting cylinder is arranged at the bottom of the movable plate, the power output end of the lifting cylinder is connected to the movable plate, the lifting cylinder is used to control the lifting height of the movable plate, and a plurality of the material storage rollers are tangent to the non-woven fabric to be coated.

6. The flat ultrafiltration membrane production equipment for water treatment according to claim 1, characterized in that: It also includes a traction device, which is arranged on the outside close to the drying box body, and the traction device includes an adjusting plate and a mounting plate, one end of the adjusting plate is hinged to the mounting plate, and the other end of the adjusting plate is provided with a traction roller, and the traction roller is tangent to the dried diaphragm, one side of the mounting plate is provided with an adjusting cylinder, the power output end of the adjusting cylinder is connected to the adjusting plate, and the adjusting cylinder is used to control the movable range of the adjusting plate.

7. A flat ultrafiltration membrane production line for water treatment, characterized in that: A flat ultrafiltration membrane production device for water treatment as claimed in any one of claims 1 to 6; And a roll-out device and a roll-up device; The unwinding device is arranged outside the coating device, and the winding device is arranged near the discharge port of the drying box. The unwinding device is used to supply the non-woven fabric to be coated, and the winding device is used to recover the processed film.

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