Reaction clear liquid membrane separation system in caprolactam production process

Abstract

The utility model provides a reaction clear liquid membrane separation system in a caprolactam production process, which comprises an equipment main body, an automatic cleaning maintenance device is arranged beside the equipment main body, two molecular concentration detectors are arranged in the equipment main body, and the equipment main body internally comprises an adjusting tank, an anoxic tank, a membrane biological reaction tank and a clear water tank, a plurality of vertical stirrers are arranged in the regulating tank, a flow impeller is fixedly mounted on the surface of one side of the anoxic tank, regular operation can be set through an automatic cleaning and maintaining device, all components in the equipment main body can be automatically cleaned after a period of time, so that the membrane flux is recovered, and the valve is a full-automatic valve; according to the present invention, the washing device is arranged, such that the washing, the buffer washing and the washing switching among the single rooms are achieved, the dosing system and the external control device are provided so as to avoid the manual washing maintenance, and the arranged molecule concentration detector can detect the ion concentration, determine whether the ion concentration meets the standard and discharge so as to improve the filtration efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewage treatment, and specifically discloses a reaction clear liquid membrane separation system in a caprolactam production process. Background Art

[0002] Membrane separation is a high-tech that has been rapidly emerging in the past 20 years. It uses natural or synthetic polymer semipermeable membrane separation methods and uses the pressure difference or potential difference on both sides of the membrane as a driving force to allow certain molecules or ions in the fluid to pass through the semipermeable membrane or be intercepted by the semipermeable membrane to obtain or remove certain components in the fluid. Nowadays, most of the MBR membrane bioreactors are used in the market, but the best time for discharge and extraction is difficult to control, and it is difficult to judge whether it is completely degraded, and it is very difficult to clean and maintain. Therefore, we propose a membrane separation system for the reaction clear liquid in the caprolactam production process. Utility Model Content

[0003] In view of the above-mentioned defects or shortcomings in the prior art, the present application aims to provide a reaction clear liquid membrane separation system in the caprolactam production process, comprising an equipment main body, an automatic cleaning and maintenance device is arranged on the side of the equipment main body, two molecular concentration detectors are arranged inside the equipment main body, the equipment main body contains a regulating tank, an anoxic tank, a membrane biological reaction tank and a clear water tank, a plurality of vertical agitators are arranged inside the regulating tank, and a flow promoter is fixedly installed on the surface of one side of the anoxic tank.

[0004] Preferably, the two molecular concentration detectors are respectively arranged inside the anoxic tank and the clean water tank, and a grid filter is fixedly installed on the upper surface of the regulating tank, and one side of the grid filter is connected to a water inlet.

[0005] Preferably, the water inlet is connected to the automatic cleaning and maintenance device through a pipeline, and two lifting pumps are arranged inside the equipment body, and the two lifting pumps are respectively arranged inside the regulating tank and the membrane biological reaction tank.

[0006] Preferably, a reflux pipe is fixedly mounted on a surface of one side of one of the lift pumps, and a membrane bioreactor is fixedly mounted on the bottom surface of the membrane bioreactor tank.

[0007] Preferably, one end of the internal pipe of the anoxic tank is connected to a blower, and one end of the internal pipe of the membrane biological reaction tank is connected to a sterilizer.

[0008] Preferably, a water outlet is provided on a surface of one side of the clear water tank.

[0009] Beneficial effects:

[0010] 1. The reaction clear liquid membrane separation system in the caprolactam production process can be set to run regularly through the automatic cleaning and maintenance device. After a period of time, all components inside the equipment body will be automatically cleaned once, thereby restoring the membrane flux. The valve adopts a fully automatic valve to achieve cleaning, buffer washing and cleaning switching between each single room. It is equipped with a dosing system and an external control device to avoid manual cleaning and maintenance. The vertical agitator can prevent sludge accumulation from causing congestion. A filter screen is installed on one side of the flow pusher, which has a certain filtering and pushing effect. The molecular concentration detector can monitor the water ion concentration, which is convenient for checking whether it meets the standard and when to discharge, thereby improving the filtration efficiency.

[0011] 2. The reaction clear liquid membrane separation system in the caprolactam production process can filter out part of the impurities through the grid filter and discharge the sewage from the back pipe. The lifting pump can be used to pump water. The extracted material can be set for single extraction, so that the later nitrification liquid can flow back to achieve internal circulation. The membrane bioreactor can achieve a high removal rate of organic matter, extremely low suspended matter content in the effluent, and stable and reliable effluent water quality. The blower can oxidize and degrade organic matter, remove BOD, and absorb phosphorus. The outlet is used as the discharge outlet for clean water. The internal valve is connected to the electrical signal of the molecular concentration detector, and the valve can be automatically opened after meeting the standard. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

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

[0014] Figure 2 This is a schematic diagram of the structure of one side of the utility model;

[0015] Figure 3 It is a schematic diagram of the internal structure of the utility model.

[0016] In the figure: 1. regulating tank; 2. anoxic tank; 3. membrane bioreactor tank; 4. clean water tank; 5. automatic cleaning and maintenance device; 6. water inlet; 7. grid filter; 8. equipment body; 9. blower; 10. disinfector; 11. water outlet; 12. molecular concentration detector; 14. membrane bioreactor; 15. lifting pump; 16. vertical agitator; 17. flow promoter. DETAILED DESCRIPTION

[0017] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the invention are shown in the accompanying drawings.

[0018] The accompanying drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0019] See also Figure 1-3 A membrane separation system for a reaction clear liquid in a caprolactam production process comprises an equipment body 8, an automatic cleaning and maintaining device 5 is arranged beside the equipment body 8, two molecular concentration detectors 12 are arranged inside the equipment body 8, the equipment body 8 comprises a regulating tank 1, an anoxic tank 2, a membrane biological reaction tank 3 and a clean water tank 4, a plurality of vertical agitators 16 are arranged inside the regulating tank 1, a flow pusher 17 is fixedly installed on the surface of one side of the anoxic tank 2, the automatic cleaning and maintaining device 5 can be set to run regularly, and all components inside the equipment body 8 will be automatically cleaned once after a period of time, so as to restore the membrane flux, the valve adopts a fully automatic valve, so as to realize the switching of cleaning, buffer washing and cleaning between each single room, and is equipped with a dosing system and an external control device, so as to avoid manual cleaning and maintenance, the vertical agitator 16 can prevent the accumulation of sludge from causing congestion, the filter screen is installed on one side of the flow pusher 17, which has a certain filtering and pushing effect, and the molecular concentration detector 12 can monitor the water ion concentration, so as to check whether it meets the standard and when to discharge, so as to improve the filtering efficiency.

[0020] Among them, two molecular concentration detectors 12 are respectively arranged inside the anoxic tank 2 and the clean water tank 4. A grid filter 7 is fixedly installed on the upper surface of the regulating tank 1. One side of the grid filter 7 is connected to the water inlet 6. The grid filter 7 can filter out some impurities and discharge the sewage from the back pipe.

[0021] Among them, the water inlet 6 is connected to the automatic cleaning and maintenance device 5 through a pipeline, and two lifting pumps 15 are arranged inside the equipment body 8. The two lifting pumps 15 are respectively arranged inside the regulating tank 1 and the membrane biological reaction tank 3. The lifting pumps 15 are arranged to pump water, and the extracted substances can be set to be extracted separately, so that the later nitrification liquid can reflux and realize internal circulation.

[0022] Among them, a reflux pipe 19 is fixedly installed on the surface of one side of one of the lifting pumps 15, and a membrane bioreactor 14 is fixedly installed on the bottom surface of the membrane bioreactor tank 3. The reflux pipe 19 is mainly set to achieve the reflux of nitrification liquid. The membrane bioreactor 14 can achieve a high removal rate of organic matter, extremely low suspended matter content in the effluent, and stable and reliable effluent water quality.

[0023] Among them, one end of the internal pipe of the anoxic tank 2 is connected to a blower 9, and one end of the internal pipe of the membrane biological reaction tank 3 is connected to a disinfector 10. The blower 9 can oxidize and degrade organic matter, remove BOD, and absorb phosphorus.

[0024] Among them, a water outlet 11 is opened on the surface of one side of the clean water tank 4, and the water outlet 11 is used as the outlet for discharging clean water. The internal valve is connected with the electrical signal of the molecular concentration detector 12, and the valve can be automatically opened after meeting the standard.

[0025] When the system is working, Figure 1 As shown, during use, the automatic cleaning and maintenance device 5 can be set to run regularly. After a period of time, all components inside the equipment body 8 will be automatically cleaned once, thereby restoring the membrane flux. The valve adopts a fully automatic valve to achieve cleaning, buffer washing and cleaning switching between each single room. It is equipped with a dosing system and an external control device to avoid manual cleaning and maintenance. The vertical agitator 16 can prevent sludge accumulation from causing congestion. A filter screen is installed on one side of the flow pusher 17, which has a certain filtering and pushing effect. The molecular concentration detector 12 can monitor the water ion concentration, which is convenient for checking whether it meets the standard and when Discharge, thereby improving the filtration efficiency, the grid filter 7 can filter out part of the impurities and discharge the sewage from the back pipe, the lifting pump 15 can be used to pump water, and the extracted material can be set for single extraction, so that the later nitrification liquid can flow back to achieve internal circulation, and the membrane bioreactor 14 can make the removal rate of organic matter high, the suspended matter content in the effluent is extremely low, and the effluent water quality is stable and reliable, the blower 9 can oxidize and degrade organic matter, remove BOD, and absorb phosphorus, and the outlet 11 is the outlet for discharged clean water, and the internal valve is connected to the molecular concentration detector 12 with an electrical signal, and the valve can be automatically opened after meeting the standard.

[0026] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. A reaction clear liquid membrane separation system in a caprolactam production process, comprising an equipment body (8), an automatic cleaning and maintenance device (5) is arranged on one side of the equipment body (8), two molecular concentration detectors (12) are arranged inside the equipment body (8), the equipment body (8) contains a regulating tank (1), an anoxic tank (2), a membrane biological reaction tank (3) and a clear water tank (4), a plurality of vertical agitators (16) are arranged inside the regulating tank (1), and a flow promoter (17) is fixedly installed on the surface of one side of the anoxic tank (2).

2. The reaction supernatant membrane separation system in a caprolactam production process according to claim 1, characterized in that: The two molecular concentration detectors (12) are respectively arranged inside the anoxic pool (2) and the clean water pool (4); a grid filter (7) is fixedly mounted on the upper surface of the regulating pool (1); and a water inlet (6) is connected to one side of the grid filter (7).

3. The reaction supernatant membrane separation system in a caprolactam production process according to claim 2, characterized in that: The water inlet (6) is connected to the automatic cleaning and maintenance device (5) through a pipeline. Two lifting pumps (15) are arranged inside the equipment body (8). The two lifting pumps (15) are respectively arranged inside the regulating tank (1) and the membrane biological reaction tank (3).

4. The reaction supernatant membrane separation system in a caprolactam production process according to claim 3, characterized in that: A reflux pipe (19) is fixedly mounted on the surface of one side of one of the lift pumps (15), and a membrane bioreactor (14) is fixedly mounted on the bottom surface of the membrane bioreactor tank (3).

5. The reaction supernatant membrane separation system in a caprolactam production process according to claim 1, characterized in that: One end of the internal pipeline of the anoxic tank (2) is connected to a blower (9), and one end of the internal pipeline of the membrane biological reaction tank (3) is connected to a sterilizer (10).

6. The reaction supernatant membrane separation system in a caprolactam production process according to claim 1, characterized in that: A water outlet (11) is provided on one side surface of the clean water tank (4).

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