Reverse osmosis membrane filtering device for pharmaceutical wastewater

Abstract

The utility model discloses a pharmaceutical wastewater reverse osmosis membrane filtration device which comprises a treatment box, a left cabin and a right cabin are arranged in the treatment box and are respectively a water inlet cabin and a purification cabin, and a reverse osmosis membrane plate is arranged between the water inlet cabin and the purification cabin. A brushing plate attached to the membrane surface of the reverse osmosis membrane plate and a lifting driving assembly used for driving the brushing plate to move up and down are transversely arranged on one side of the water inlet cabin, a washing plate directly facing the reverse osmosis membrane plate and internally provided with a cavity is arranged on one side of the purification cabin, and a plurality of fine nozzles which are uniformly distributed are arranged on the face, facing the reverse osmosis membrane plate, of the washing plate; when the reverse osmosis membrane plate needs to be cleaned, water inflow of the water inlet cabin is stopped firstly, the water conveying assembly is started, at the moment, the washing plate can conduct covering type washing on the screening and filtering reverse face of the reverse osmosis membrane plate through the fine nozzles, and due to the fact that impurity particles are mainly blocked and embedded in the screening and filtering face of the reverse osmosis membrane plate, impurities are smoothly ejected out under the reverse pushing effect of water.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical wastewater treatment, in particular to a pharmaceutical wastewater reverse osmosis membrane filtering device. Background Art

[0002] Reverse osmosis membranes, artificial semipermeable membranes modeled after biological semipermeable membranes, are the core component of reverse osmosis technology. Their extremely small pore size allows them to effectively remove dissolved salts, colloids, microorganisms, and organic matter from water. For example, in the pharmaceutical industry, wastewater generated during production typically requires screening and filtration to remove impurities before undergoing further treatment until it meets discharge standards.

[0003] In the prior art, during the reverse osmosis membrane filtration process of pharmaceutical wastewater, since the particles in the pharmaceutical wastewater are small and the membrane pores of the reverse osmosis membrane are also very small, this can easily lead to the disadvantage that the filter membrane surface is blocked during the continuous filtration process and is difficult to clean / wash. Therefore, staff are required to check and replace the membrane manually from time to time, or manually clean the membrane surface, which not only increases labor costs and wastes a lot of time, but also affects the continuous wastewater treatment efficiency. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present invention is to provide a reverse osmosis membrane filtration device for pharmaceutical wastewater to solve the problem in the prior art proposed in the above background technology that during the reverse osmosis membrane filtration process for pharmaceutical wastewater, staff are required to conduct irregular inspections and manual replacements, or manually clean the surface of the osmotic membrane, which not only increases labor costs and wastes a lot of time, but also affects the continuous treatment efficiency of wastewater.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reverse osmosis membrane filtration device for pharmaceutical wastewater, comprising a treatment box, wherein the treatment box has two left and right compartments, which are respectively an inlet compartment and a purification compartment, a reverse osmosis membrane plate is arranged between the inlet compartment and the purification compartment, a brush plate that is attached to the membrane surface of the reverse osmosis membrane plate, and a lifting drive assembly for driving the brush plate to move up and down are horizontally placed on one side of the water inlet compartment, a flushing plate that is opposite to the reverse osmosis membrane plate and has a cavity inside is arranged on one side of the purification compartment, the flushing plate has a plurality of evenly distributed fine nozzles on the side facing the reverse osmosis membrane plate, and the upper end of the treatment box is also provided with a water inlet assembly that is respectively connected to the water inlet compartment and a water supply assembly that is connected to the flushing plate.

[0007] As a preferred solution of the pharmaceutical wastewater reverse osmosis membrane filtration device described in the utility model, a sewage valve is provided at the bottom of the water inlet chamber, and a drainage port is provided at the bottom of the purification chamber.

[0008] As a preferred solution of a pharmaceutical wastewater reverse osmosis membrane filtration device described in the utility model, the lifting drive assembly includes a mounting plate for installing a brush plate, a guide rod vertically inserted and slid at both ends of the mounting plate and fixed to the inner side of the water inlet tank, a lead screw vertically threadedly connected to the center of the mounting plate, and a servo motor arranged at the top of the treatment box and with the output end connected to the lead screw.

[0009] As a preferred solution of the pharmaceutical wastewater reverse osmosis membrane filtration device described in the utility model, the water inlet component includes an inlet pipe with one end connected to the wastewater source and the other end connected to the water inlet tank, a liquid pump arranged on the water inlet pipe, and a liquid level gauge arranged on the top of the water inlet tank.

[0010] As a preferred solution of the pharmaceutical wastewater reverse osmosis membrane filtration device described in the utility model, the water supply component includes a water supply pipe with one end connected to the clean water source and the other end connected to the flushing plate, a liquid pump 2 arranged on the water supply pipe, and a pressure sensor arranged on the water supply pipe.

[0011] As a preferred solution of the pharmaceutical wastewater reverse osmosis membrane filtration device described in the utility model, one side of the treatment box is also provided with a sealing door, and the main control unit of the filtration device, i.e., the controller, is also provided on the front of the sealing door.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: for this type of pharmaceutical wastewater reverse osmosis membrane filtration device, when it is necessary to clean the reverse osmosis membrane plate, the water inlet to the water inlet tank is first stopped and the water delivery component is started. At this time, the flushing plate can cover the reverse filtration surface of the reverse osmosis membrane plate through a fine nozzle. Since the impurity particles are mainly embedded in the filtration surface of the reverse osmosis membrane plate, the impurities are smoothly pushed out under the reverse thrust of the water. At the same time, the brush plate can reciprocately wipe the filtration surface of the reverse osmosis membrane plate under the drive of the lifting drive component, so that the impurities and dirt adhering to the membrane surface are quickly fallen off and cleaned up. The cleaned water and impurities and dirt will be deposited at the bottom of the water inlet tank and discharged through the drain valve, thereby achieving the purpose of automatic and efficient cleaning of the osmotic membrane, effectively reducing labor costs and time waste, and further improving wastewater treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the processing box of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the lifting drive component of the utility model.

[0016] In the figure: 100, treatment box; 110, water inlet chamber; 111, sewage valve; 120, purification chamber; 121, drain outlet; 130, sealing door; 200, reverse osmosis membrane plate; 300, brush plate; 400, lifting drive assembly; 410, mounting plate; 420, guide rod; 430, screw; 440, servo motor; 500, flushing plate; 510, fine nozzle; 600, water inlet assembly; 610, water inlet pipe; 620, liquid pump 1; 630, liquid level meter; 700, water delivery assembly; 710, water delivery pipe; 720, liquid pump 2; 730, pressure sensor; 800, controller. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0018] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0019] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0020] Figure 1-Figure 3 The figure shows the overall structure of a reverse osmosis membrane filtration device for pharmaceutical wastewater of the present invention. Figure 1-Figure 3 , a pharmaceutical wastewater reverse osmosis membrane filtration device according to the present embodiment includes a treatment box 100, which has two left and right compartments inside the treatment box 100, namely a water inlet compartment 110 and a purification compartment 120, a reverse osmosis membrane plate 200 is arranged between the water inlet compartment 110 and the purification compartment 120, and a brush plate 300 that is attached to the membrane surface of the reverse osmosis membrane plate 200 and a lifting drive assembly 400 for driving the brush plate 300 to move up and down are horizontally arranged on one side of the water inlet compartment 110, a flushing plate 500 that is opposite to the reverse osmosis membrane plate 200 and has a cavity inside is provided on one side of the purification compartment 120, and a plurality of evenly distributed fine nozzles 510 are provided on the side of the flushing plate 500 facing the reverse osmosis membrane plate 200, and a water inlet assembly 600 that is respectively connected to the water inlet compartment 110 and a water delivery assembly 700 that is connected to the flushing plate 500.

[0021] In this embodiment, a drain valve 111 is provided at the bottom of the inlet tank 110, and a drain port 121 is provided at the bottom of the purification tank 120. During operation, wastewater entering the purification tank 120 from the inlet tank 110 is filtered by the reverse osmosis membrane plate 200 and then discharged through the drain port 121. Wastewater flushed from the reverse osmosis membrane plate 200 falls to the bottom of the inlet tank 110 and is discharged through the drain valve 111.

[0022] The lifting drive assembly 400 includes a mounting plate 410 for mounting the brush plate 300, a guide rod 420 vertically extending and sliding between the ends of the mounting plate 410 and fixed to the inside of the water inlet chamber 110, a lead screw 430 vertically threadedly connected to the center of the mounting plate 410, and a servo motor 440 disposed at the top of the treatment chamber 110 with its output end connected to the lead screw 430. The servo motor 440 drives the lead screw 430 to rotate, and in conjunction with the guide rod 420, drives the mounting plate 410 and the brush plate 300 up and down, thereby scrubbing and cleaning the sieve surface of the reverse osmosis membrane plate 200 via the brush plate 300. The water inlet assembly 600 includes a water inlet pipe 610 connected at one end to the wastewater source and at the other end to the water inlet chamber 110, a liquid pump 620 disposed on the water inlet pipe 610, and a liquid level gauge 630 disposed at the top of the water inlet chamber 110. Through the cooperation of liquid pump 1 620 and water inlet pipe 610, sewage from the wastewater source is pumped into the water inlet tank 110. At the same time, the liquid level gauge 630 monitors the water level in the water inlet tank 110 in real time, cooperating with the control system to prevent the water level from exceeding the limit. The water supply assembly 700 includes a water supply pipe 710 connected to the clean water source at one end and to the flushing plate 500 at the other end, a liquid pump 2 720 mounted on the water supply pipe 710, and a pressure sensor 730 mounted on the water supply pipe 710. It is understood that the flushing pressure of the fine nozzle 510 on one side of the flushing plate 500 must be maintained within a reasonable range to prevent excessive flushing pressure from damaging the reverse osmosis membrane plate 200, and insufficient pressure from achieving the desired backwashing effect. Therefore, the pressure sensor 730 can monitor the output pressure of the water supply pipe 710 in real time to ensure stable water pressure output. Specifically, in this embodiment, when it is necessary to clean the reverse osmosis membrane plate 200, first stop the water inlet of the water inlet tank 110 and start the water delivery component 700. At this time, the flushing plate 500 can cover the reverse side of the filtration of the reverse osmosis membrane plate 200 through the fine nozzle 510. Since the impurity particles are mainly embedded in the filtration surface of the reverse osmosis membrane plate 200, the impurities are smoothly pushed out under the reverse thrust of the water. At the same time, the brush plate 300 can brush the filtration surface of the reverse osmosis membrane plate 200 back and forth under the drive of the lifting drive component 400, so that the impurities and dirt adhering to the membrane surface are quickly fallen off and cleaned up. The cleaned water and impurities and dirt will be deposited at the bottom of the water inlet tank 110 and discharged through the drain valve 111, thereby achieving the purpose of automatic and efficient cleaning of the osmotic membrane, effectively reducing labor costs and time waste, and further improving wastewater treatment efficiency.

[0023] Furthermore, a sealed door 130 is provided on one side of the processing box 100. The front of the sealed door 130 houses the filter device's master control unit, controller 800. Opening the sealed door 130 allows for easy access to the processing box 100 for maintenance and replacement. Controller 800 also allows for integrated control and settings of the filter device's various drive and detection units, making it even more convenient to use.

[0024] In summary, in a pharmaceutical wastewater reverse osmosis membrane filtration device according to the present embodiment, when it is necessary to clean the reverse osmosis membrane plate 200, the water inlet of the water inlet tank 110 is first stopped and the water delivery component 700 is started. At this time, the flushing plate 500 can cover and flush the reverse side of the filtration of the reverse osmosis membrane plate 200 through the fine nozzle 510. Since the impurity particles are mainly embedded in the filtration surface of the reverse osmosis membrane plate 200, the impurities are smoothly pushed out under the reverse thrust of the water. At the same time, the brush plate 300 can brush the filtration surface of the reverse osmosis membrane plate 200 back and forth under the drive of the lifting drive component 400, so that the impurities and dirt adhering to the membrane surface are quickly fallen off and cleaned up, and the cleaned water and impurities and dirt will be deposited at the bottom of the water inlet tank 110 and discharged through the drain valve 111, thereby achieving the purpose of automatic and efficient cleaning of the osmotic membrane, effectively reducing labor costs and time waste.

[0025] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A pharmaceutical wastewater reverse osmosis membrane filtration device, characterized in that: The invention comprises a treatment box (100), wherein the treatment box (100) has two compartments on the left and right, which are a water inlet compartment (110) and a purification compartment (120), a reverse osmosis membrane plate (200) is arranged between the water inlet compartment (110) and the purification compartment (120), and a brush plate (300) attached to the membrane surface of the reverse osmosis membrane plate (200) and a lifting drive assembly (400) for driving the brush plate (300) to move up and down are arranged horizontally on one side of the water inlet compartment (110). ), a flushing plate (500) facing the reverse osmosis membrane plate (200) and having a cavity inside is provided on one side of the purification cabin (120), a side of the flushing plate (500) facing the reverse osmosis membrane plate (200) is provided with a plurality of evenly distributed fine nozzles (510), and a water inlet component (600) connected to the water inlet cabin (110) and a water delivery component (700) connected to the flushing plate (500) are further provided at the upper end of the treatment box (100).

2. A pharmaceutical wastewater reverse osmosis membrane filtration device according to claim 1, characterized in that: The bottom of the water inlet chamber (110) is provided with a sewage valve (111), and the bottom of the purification chamber (120) is provided with a drainage port (121).

3. A pharmaceutical wastewater reverse osmosis membrane filtration device according to claim 1, characterized in that: The lifting drive assembly (400) comprises a mounting plate (410) for mounting the brush plate (300), a guide rod (420) vertically inserted and slidably connected to both ends of the mounting plate (410) and fixed to the inner side of the water inlet chamber (110), a lead screw (430) vertically threadedly connected to the center of the mounting plate (410), and a servo motor (440) arranged at the top of the processing box (110) and with its output end connected to the lead screw (430).

4. A pharmaceutical wastewater reverse osmosis membrane filtration device according to claim 1, characterized in that: The water inlet assembly (600) comprises a water inlet pipe (610) having one end connected to a wastewater source and the other end connected to a water inlet tank (110), a liquid pump (620) arranged on the water inlet pipe (610), and a liquid level gauge (630) arranged on the top of the water inlet tank (110).

5. A pharmaceutical wastewater reverse osmosis membrane filtration device according to claim 1, characterized in that: The water delivery assembly (700) comprises a water delivery pipe (710) connected to a clean water source at one end and connected to a flushing plate (500) at the other end, a second liquid pump (720) arranged on the water delivery pipe (710), and a pressure sensor (730) arranged on the water delivery pipe (710).

6. A pharmaceutical wastewater reverse osmosis membrane filtration device according to claim 1, characterized in that: A sealing door (130) is also provided on one side of the processing box (100), and a main control unit of the filtering device, i.e., a controller (800), is also provided on the front of the sealing door (130).

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