CN211712859U - Intelligent treatment system for ethylene desulfurization wastewater - Google Patents
Intelligent treatment system for ethylene desulfurization wastewater Download PDFInfo
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- CN211712859U CN211712859U CN201922387631.4U CN201922387631U CN211712859U CN 211712859 U CN211712859 U CN 211712859U CN 201922387631 U CN201922387631 U CN 201922387631U CN 211712859 U CN211712859 U CN 211712859U
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- 239000005977 Ethylene Substances 0.000 title claims abstract description 44
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 88
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- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model provides an intelligent processing system of ethylene desulfurization waste water. The intelligent processing system comprises: the system comprises an alkaline washing tower, a waste water heat exchanger, a waste water heater and an oxidation reaction device which are sequentially connected, wherein the waste water heat exchanger is provided with a material inlet, a material outlet, a heat source inlet and a heat source outlet, and the alkaline washing tower is provided with an alkaline liquor circulating pipeline; oxidizing water from the oxidation reaction device enters the wastewater heat exchanger from the heat source inlet, the heat source outlet is connected with a finished product tank, the alkali liquor circulation pipeline is connected with a desulfurization wastewater branch pipe, the desulfurization wastewater branch pipe is connected with the material inlet, and the material outlet is connected with a wastewater heater; the micro-interface generators are symmetrically arranged on the two side walls in the oxidation reaction device. The utility model discloses an intelligent processing system improves the contact that reacts looks interface through laying behind the micro-interface generator, and this intelligent processing system does not need artificial operation in addition, can realize intelligent control operating system.
Description
Technical Field
The utility model relates to an ethylene desulfurization waste water treatment field particularly, relates to an intelligent processing system of ethylene desulfurization waste water.
Background
Ethylene is a main representative product of petrochemical industry, and has a very important position in petrochemical industry. The increase of the ethylene yield can drive and promote the increase of three synthetic materials and other organic materials, and the ethylene yield is a main mark for measuring the level of the national petrochemical industry. Therefore, the ethylene industry is vigorously developed in China, but various environmental problems are caused, and waste water and gas are generated in the ethylene production process in an indispensable way.
In the production operation of an ethylene device, a large amount of waste alkali liquor is generated by washing and removing various acid gases generated in the cracking process, and the main components of the waste alkali liquor are sulfide, residual sodium hydroxide and butter.
At present, most of domestic and foreign manufacturers adopt wet oxidation technology for treating various waste alkali liquors. More recently, Jilin BWhen the alkene device is put into operation, wet oxidation method is adopted to treat the desulfurization waste liquid of the alkaline washing tower, and the device and the production device are put into operation simultaneously. Simple process, good effect and desulfurization rate of more than 90 percent. The method takes cobalt phthalocyanine as a catalyst and air as an oxidant to respectively oxidize sodium mercaptide and sodium sulfide in sulfur-containing wastewater from an alkaline washing tower into disulfide RSSR and Na2S2O3The main conditions are air: waste stream 100:1 (volume); the amount of the catalyst used is 5ppm/m3The sulfur content of the waste liquid is reduced from 4-5g/l to below 0.5g/l after the waste liquid is treated at normal temperature and normal pressure and the contact time is 3-5 hours, and the sulfur content of the waste liquid is lmg/1 below after the waste liquid is converged into a sewage station of a factory, so that the waste liquid reaches the national emission standard.
In the wet oxidation treatment process, although the operation temperature and pressure are not high after the catalyst is adopted, the operation can be basically realized at normal temperature and normal pressure, but the cost is higher after the catalyst is adopted, the problems of subsequent recovery and treatment of the catalyst are also considered after the subsequent reaction is finished, the operation is very inconvenient, and a lot of subsequent work is increased invisibly.
In addition, as informatization is developed more and more rapidly, the application of an intelligent system is more and more extensive, errors are easy to occur by adopting a manual control mode, and the labor cost is higher.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide an intelligent processing system of ethylene desulfurization waste water, this intelligent processing system is through laying behind the micro-interface generator, mass transfer effect between the double-phase has been improved, this micro-interface generator can smash the bubble into micron level's bubble, thereby increase the interfacial area between gaseous phase and the liquid phase, make oxygen can form the gas-liquid emulsion with the better integration of ethylene desulfurization waste water, improve oxidation reaction efficiency, simultaneously because after the oxygen in the ethylene desulfurization waste water is smashed into the small bubble, gaseous volume diminishes, thereby the buoyancy of bubble come-up has been slowed down, make the time that oxygen dwells in ethylene desulfurization waste water longer, further improve reaction efficiency, the mass transfer effect at reaction interfacial has been increased.
Meanwhile, after the micro-interface generator is adopted, the whole intelligent treatment system can realize normal-temperature and normal-pressure operation without adopting a catalyst, the cost is saved without adopting the catalyst, the problem of secondary pollution caused by the fact that the catalyst needs to be subsequently recovered and treated is solved, the whole treatment method is simple, convenient and quick to operate, and the operation flow is correspondingly simplified.
The intelligent processing system can realize intelligent control of the operation parameters of the processing system, does not need manual control, reduces the error rate, improves the production efficiency, fully reduces the labor cost, and is worthy of wide popularization and application.
A second object of the utility model is to provide an adopt above-mentioned intelligent processing system to carry out the processing method of ethylene desulfurization waste water, this processing method is easy and simple to handle, operating condition is gentler, and the energy consumption is low, and in the ethylene desulfurization waste water after the processing, harmful removal rate can reach about 99%, is worth extensively popularizing and applying.
In order to realize the above purpose of the utility model, the following technical scheme is adopted:
the utility model provides a waste water intelligence processing system for handling ethylene desulfurization waste water, include: the system comprises an alkaline washing tower, a waste water heat exchanger, a waste water heater and an oxidation reaction device which are sequentially connected, wherein the waste water heat exchanger is provided with a material inlet, a material outlet, a heat source inlet and a heat source outlet, and the alkaline washing tower is provided with an alkaline liquor circulating pipeline;
the oxidized water from the oxidation reaction device enters the wastewater heat exchanger from the heat source inlet, the heat source outlet is connected with a finished product tank, the alkali liquor circulation pipeline is connected with a desulfurized wastewater branch pipe, the desulfurized wastewater branch pipe is connected with the material inlet, and the material outlet is connected with the wastewater heater;
the device comprises an oxidation reaction device, a pipeline and a gas inlet, wherein micro-interface generators are symmetrically arranged on two side walls in the oxidation reaction device and used for dispersing broken gas into bubbles;
the oxidation reaction device comprises a primary oxidation reactor and a secondary oxidation reactor which are sequentially connected, and oxidation water after oxidation treatment of the primary oxidation reactor continuously enters the secondary oxidation reactor for oxidation treatment.
The processing system also comprises an intelligent system, wherein the intelligent system consists of a big data intelligent control center for processing, storing and analyzing data, an output execution module for controlling the equipment through the output data information, and an equipment terminal controller, and the big data intelligent control center consists of a data acquisition module, a data mining module, a data storage module and a data transmission module.
Preferably, the equipment terminal controller is connected with the alkaline washing tower, the primary oxidation reactor and the secondary oxidation reactor to realize intelligent control of the equipment.
The ethylene waste alkali liquor to be treated by the utility model contains high-concentration sodium sulfide, sodium hydrosulfide, thiolate, thiosulfate, phenols and other substances. Meanwhile, hydrocarbon polymers in the cracked gas enter the waste liquid in the alkali washing process, a layer of yellow oily matter exists on the surface of the waste liquid and exists in a water-in-oil type emulsion, the waste liquid is mainly treated by a wet oxidation technology at present, but in the wet oxidation treatment process, after the catalyst is adopted, although the operation temperature and the operation pressure are not high, the operation can be basically realized at normal temperature and normal pressure, the cost is higher after the catalyst is adopted, and after the subsequent reaction is finished, the problems of subsequent recovery and treatment of the catalyst are also considered, so that the operation is very inconvenient, and a lot of subsequent work is increased invisibly.
The utility model provides an intelligent treatment system specially for ethylene desulfurization wastewater treatment to solve the technical problems, the intelligent treatment system breaks and disperses air or oxygen entering the oxidation reaction device into bubbles through arranging the micro-interface generator at the bottom of the oxidation reaction device, so that the bubbles and the wastewater form gas-liquid emulsion, thereby increasing the phase interface area between the gas and the wastewater, further improving the reaction efficiency, and melting oxygen into the wastewater as much as possible after increasing the mass transfer effect of the reaction phase interface, thus, the good treatment effect can be ensured under the conditions of normal temperature and normal pressure without adopting a catalyst, or in order to ensure better treatment effect, a few catalysts can be added, the amount of the catalyst adopted in the traditional process can be reduced sufficiently, and the catalyst can be added or not added freely according to the actual operation condition.
The utility model discloses an intelligent processing system has specifically established the intelligent system that can realize intelligent control, this intelligent system has especially contained and can realize data processing, the big data intelligent control center of storage and analysis, this big data intelligent control center has included the data acquisition module, the data mining module, the data storage module, the data transmission module, like this through the data acquisition back of controlling to field device, carry out the analysis at the background, intelligence mining processing and storage, can realize the follow-up field device that controls when, reduce the error rate, control more for pressing close to the degree of artificially controlling, the feedback is also more sensitive.
Through the setting of the intelligent system, the real-time monitoring and intelligent control and adjustment of key indexes such as the temperature, the pressure, the material flow and the like of each key device can be realized. Especially, the working states of important equipment such as an alkaline tower, a primary oxidation reactor, a secondary oxidation reactor and the like are more conveniently and intelligently controlled.
Preferably, the micro-interface generator is a pneumatic micro-interface generator.
Preferably, the bottom in the oxidation reaction device is provided with 3 micro-interface generators, and each micro-interface generator is communicated with the air inlet, so that the cost can be considered, and the mass transfer effect can be ensured. Wherein two micro-interface generators are arranged at symmetrical positions on the side wall of the bottom, a better mass transfer effect is achieved through hedging, and the other micro-interface generator is arranged at the bottommost part of the oxidation reaction device.
It can be understood by those skilled in the art that the micro-interface generator of the present invention can break the gas phase and/or the liquid phase in the multi-phase reaction medium into micro-bubbles and/or micro-droplets with a diameter of micron level in a preset action mode through the mechanical micro-structure and/or turbulent micro-structure in the micro-interface generator before the multi-phase reaction medium enters the reactor, so as to increase the mass transfer area of the phase boundary between the gas phase and/or the liquid phase and/or the solid phase in the reaction process, improve the mass transfer efficiency between the reaction phases, and strengthen the multi-phase reaction within a preset temperature and/or a preset pressure range.
The micro-interface generator can be used for reactions of gas-liquid, liquid-solid, gas-liquid, gas-liquid-solid, liquid-solid and other multi-phase reaction media, the specific structure of the micro-interface generator can be freely selected according to different flowing media, and corresponding records are also provided in patents and documents before the specific structure and specific functional action of the micro-interface generator, and additional details are not provided herein. Meanwhile, the number and the position of the air inlets can be adjusted according to the actual engineering requirements and the factors of the height, the length, the diameter, the waste water flow rate and the like of the oxidation reaction device in the system, so that the better air supply effect is achieved, and the oxidative degradation rate is improved.
The utility model discloses a mode of little interface generator establishing the pipeline in through sets up its position of setting lower part in oxidation reaction unit, and the pipeline can play the effect of fixed stay little interface generator, and every little interface generator all with a branch connection, then all branch pipes gather a house steward, and the house steward is connected with the air inlet again, designs the position of little interface generator like this, can be so that the dispersion smashes the mass transfer between the better realization of back gas and liquid is double-phase.
The utility model discloses an oxidation reaction device has included two-stage oxidation reactor, and the structure of the oxidation reactor of each grade is unanimous, and the lower part of all in the reactor is provided with micro-interface generator, and micro-interface generator in the two-stage oxidation reactor all is connected with the pneumatics device through the air inlet. The treatment effect of the waste water is enhanced by arranging two stages of oxidation reactors.
Additionally, the utility model discloses an in the scheme, earlier with ethylene desulfurization waste water through waste water heat exchanger, waste water heater heat the back, get into oxidation reaction unit again, the oxidizing water temperature after oxidation reaction unit reaction is than higher usually, for this part of heat of make full use of, can heat its ethylene desulfurization waste water of treating among letting in waste water heat exchanger. The oxidation water from the oxidation reaction device can also contain a part of oxygen, so that the oxidation water is recycled to the waste water heat exchanger for heat exchange after gas-liquid separation is carried out by the gas-liquid separation tank.
In order to recover the resources in the ethylene desulfurization wastewater, reduce the difficulty of wet oxidation of the ethylene desulfurization wastewater and improve the COD removal rate of the wastewater, the ethylene desulfurization wastewater is preferably pretreated before the wet oxidation, the pretreatment comprises adding a dewatering machine and other pretreatment means, and other pretreatment modes can be adopted according to actual working conditions.
Therefore, the intelligent treatment system for the ethylene desulfurization wastewater also comprises a dehydrator, and the dehydrator is connected with the alkaline washing tower;
preferably, a raw water pump for transporting desulfurization wastewater is arranged between the alkaline tower and the dehydrator.
Preferably, a conveying pump is arranged on a connecting pipeline of the waste water heat exchanger and the dehydrator.
The utility model discloses a preferred vacuum belt hydroextractor of hydroextractor, vacuum belt hydroextractor reach the purpose of dehydration through vacuum suction thick liquid, and on the filter cloth of vacuum belt hydroextractor was sent into to the thick liquid, the filter cloth was through a heavy rubber belt conveying, transversely opened flutedly and middle opening on this rubber belt has the through-hole so that liquid can inhale the vacuum box. And simultaneously pumping the filtrate and air to a vacuum main pipe, enabling the filtrate in the vacuum filtrate collecting pipe to enter a gas-liquid separator for gas-water separation, connecting an outlet at the top of the gas-liquid separator with a vacuum pump, and pumping the gas out of the vacuum pump. And the separated filtrate enters a filtrate receiving water tank from an outlet at the bottom of the gas-liquid separator. The slurry is pumped in vacuum and passes through a forming area, a washing area and a drying area to form a qualified filter cake, and the qualified filter cake is conveyed into a discharge chute in a discharge area and conveyed into a warehouse by a transfer belt conveyor.
Preferably, the lateral upper part of the oxidation reaction device is provided with an oxidized water outlet, and the oxidized water outlet is connected with the heat source inlet through a pipeline.
Preferably, the intelligent processing system further comprises an air compression device, the air compression device is communicated with the air inlet, and air or compressed oxygen compressed by the air compression device enters the micro-interface generator through the air inlet to be dispersed and smashed. The compressed air or oxygen from the air compressor is preferably heated in a heat exchanger before entering the micro-interface generator.
The utility model discloses an can set up the pump body according to actual need on corresponding connecting tube among the intelligent processing system.
The utility model discloses an intelligent processing system of ethylene desulfurization waste water treatment capacity is high, handles the back through this intelligent processing system, can guarantee under the energy consumption condition that is lower than, possess higher treatment effect, and harmful removal rate can reach about 99%.
In addition, the utility model also provides a processing method of ethylene desulfurization waste water, including following step:
heating the ethylene desulfurization wastewater from the alkaline tower, then feeding the ethylene desulfurization wastewater into an oxidation reaction device, and simultaneously introducing compressed air or compressed oxygen into the oxidation reaction device to perform oxidation reaction;
the compressed air or the compressed oxygen entering the oxidation reaction device is firstly dispersed and crushed by a micro-interface generator;
in the intelligent control process of the intelligent system, the big data intelligent control center transmits the analyzed and processed real operation data to the output execution module of the control equipment, and the output execution module controls the equipment terminal controller so as to control the technical process of the field equipment.
The utility model discloses a processing method of ethylene desulfurization waste water is easy and simple to handle, operating condition is gentler, and the energy consumption is low, and in the ethylene desulfurization waste water after the processing, harmful, COD clearance can reach 99%, has reduced the emission of industrial waste, and the environmental protection can realize whole intelligent control more, does not need the people to control, is worth extensive popularization and application.
Compared with the prior art, the beneficial effects of the utility model reside in that:
(1) the utility model discloses the intelligent processing system of ethylene desulfurization waste water has improved the mass transfer effect between the double-phase through laying the micro-interface generator, and this micro-interface generator can break the bubble into micron level's bubble to increase the phase interface area between gaseous phase and the liquid phase, make oxygen can form the gas-liquid emulsion with better fusion of ethylene desulfurization waste water, improve oxidation reaction efficiency;
(2) in the intelligent wastewater treatment system, the two-stage oxidation reactor is adopted to enhance the treatment effect of wastewater;
(3) the utility model has simple structure, less three wastes, full recycling of oxygen and small occupied area;
(4) the utility model discloses an intelligent wastewater treatment system improves the mass transfer effect between the two phases by laying the micro-interface generator, reduces the energy consumption and the production cost, and obviously improves the oxidation reaction efficiency;
(5) the intelligent treatment system of the utility model can realize normal temperature and normal pressure operation without adopting a catalyst, not only saves cost, but also avoids the problem that the catalyst needs to be subsequently recovered and treated to cause secondary pollution, the whole treatment method is more convenient and rapid to operate, and the operation flow is correspondingly simplified;
(6) the utility model discloses an intelligent processing system can realize digging analysis, intelligence of controlling the parameter backstage to the scene and handle and save convenient and fast, intelligence through setting up big data intelligent control center.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 is a schematic structural diagram of an intelligent treatment system for ethylene desulfurization wastewater provided by an embodiment of the present invention; fig. 2 is a functional block diagram of an intelligent system provided by an embodiment of the present invention.
Description of the drawings:
10-an alkaline washing tower; 11-an alkali liquor circulation line;
12-an alkali liquor circulating pump; 13-a desulfurized waste water branch pipe;
20-dewatering machine; 30-raw water pump;
40-a waste water heat exchanger; 41-material inlet;
42-material outlet; 43-heat source inlet;
44-heat source outlet; 50-a waste water heater;
60-a secondary oxidation reactor; 61-an oxidized water outlet;
62-a micro-interface generator; 63-air inlet;
64-a pneumatic device; 65-a vent;
70-a primary oxidation reactor; 80-a delivery pump;
90-finished product tank; 100-a buffer tank;
110-a gas-liquid separation tank; 120-intelligent system.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but 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 thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to clarify the technical solution of the present invention, the following description is made in the form of specific embodiments.
Examples
Referring to fig. 1, the system for intelligently processing ethylene desulfurization wastewater according to the first embodiment of the present invention includes an alkaline tower 10, a wastewater heat exchanger 40, a wastewater heater 50, an oxidation reaction device, and an air compressor 74, which are connected in sequence.
Wherein, the waste water heat exchanger 40 is respectively provided with a material inlet 41, a material outlet 42, a heat source inlet 43 and a heat source outlet 44, the alkaline tower is provided with an alkaline liquor circulating pipeline 11, the alkaline liquor circulating pipeline 11 is provided with an alkaline liquor circulating pump 12, alkaline liquor is sprayed in the alkaline tower 10 to carry out desulfurization treatment on acid gas, when the alkaline liquor is saturated, waste liquor is formed and needs to be treated, the desulfurization waste water branch pipe 13 connected from the alkaline liquor circulating pipeline 11 is conveyed to carry out wet oxidation treatment, the desulfurization waste water branch pipe 13 is connected with the material inlet 41, oxidized water from an oxidation reaction device enters the waste water heat exchanger 60 from the heat source inlet 43, the heat source outlet 44 is connected with a finished product tank 90, the material outlet 42 is connected with a waste water heater 50, in the waste water heat exchanger 40, the oxidized water after the reaction of the oxidation reaction device exchanges heat with the ethylene desulfurization waste water to be treated, thereby achieving the effect of fully utilizing energy.
The side upper part of the secondary oxidation reactor 60 is provided with an oxidized water outlet 61, the oxidized water from the oxidized water outlet 61 is firstly subjected to gas-liquid separation in a gas-liquid separation tank 110 and then is connected with a heat source inlet 43 through a pipeline, the lower part in the secondary oxidation reactor 60 is provided with a micro-interface generator 62, the micro-interface generator 62 is used for dispersing the crushed gas into bubbles, the bottom wall of the secondary oxidation reactor 60 is provided with a gas inlet 63, the gas inlet 63 is connected with the micro-interface generator 62 through a pipeline, an air pressure device 64 is communicated with the gas inlet 63, and the air or oxygen compressed by the air pressure device 64 enters the micro-interface generator 62 through the gas inlet 63 to realize the crushing and dispersion of the gas so as to enhance the mass transfer effect between the two phases. The air compressor means 64 is preferably an air compressor. The air or oxygen compressed by the air compressor is heated by the heat exchanger and then enters the micro-interface generator 62. The type of air compressor can be selected as a centrifugal air compressor, and the type of compressor is low in cost and convenient to use. The type of the micro-interface generator 62 is a pneumatic micro-interface generator 62, the number of the micro-interface generators 62 is 3, the micro-interface generators 62 are symmetrically arranged on the two side walls in the secondary oxidation reactor 60, and the micro-interface generators 62 are further arranged at the bottom of the secondary oxidation reactor 60, so that the symmetrical arrangement can realize hedging and enhance the mass transfer effect. The oxidized water from the secondary oxidation reactor 60 is directly sent to the waste water heat exchanger 40 for heat exchange, and is cooled down after heat exchange and then is conveyed to the finished product tank 90 for storage. The structure of the primary oxidation reactor 70 corresponds to the structure of the secondary oxidation reactor 60. The water from the product tank 90 may continue to undergo subsequent desalination by conventional means of the prior art.
This intelligent processing system has still included vacuum belt hydroextractor 20, and this vacuum belt hydroextractor 20 is connected with caustic wash tower 10, is provided with the raw water pump 30 that is used for transporting desulfurization waste water between caustic wash tower 10 and the hydroextractor 20, is provided with delivery pump 80 on the connecting tube of waste water heat exchanger 40 and hydroextractor 20, and the waste water after breaking away from impurity from vacuum belt hydroextractor 20 is kept in buffer tank 100 temporarily, then enters into waste water heat exchanger 40 through delivery pump 80 from buffer tank 100.
The intelligent system 120 is electrically connected to the caustic washing tower 10, the primary oxidation reactor 70, and the secondary oxidation reactor 60 in the above embodiments, so as to achieve actual intelligent control of each device, and a flow chart of the specific intelligent system is shown in fig. 2.
In the above embodiment, the number of the micro-interface generators 62 is not limited, and in order to increase the dispersion and mass transfer effects, additional micro-interface generators 62 may be additionally provided, especially, the installation position of the micro-interface generator 62 is not limited, and the micro-interface generator may be external or internal, and when the micro-interface generator is internal, the micro-bubble generator may be installed on the side wall in the kettle in a manner of being oppositely arranged, so as to realize the opposite flushing of the micro-bubbles coming out from the outlet of the micro-interface generator 62.
In the two embodiments, the number of the pump bodies is not specifically required, and the pump bodies can be arranged at corresponding positions according to requirements.
The working process and the principle of the intelligent treatment system for the ethylene desulfurization wastewater of the utility model are briefly described as follows:
after the nitrogen gas purges the caustic tower 10, the wastewater heat exchanger 40, the wastewater heater 50, the pipelines of the oxidation reaction device and the inside of the oxidation reaction device, the ethylene desulfurization wastewater in the caustic tower 10 is sent to the dehydrator 20 through the raw water pump 30 for pretreatment to remove impurities, and the pretreated wastewater is temporarily stored in the buffer tank 100.
Then, the ethylene desulfurization wastewater is sent into a wastewater heat exchanger 40 through a delivery pump 80 for heat exchange, and then is further heated through a wastewater heater 50, the heated ethylene desulfurization wastewater enters an oxidation reaction device for oxidation treatment, and sequentially passes through a first-stage oxidation reactor 70 and a second-stage oxidation reactor 60 for two-stage oxidation treatment, compressed air or compressed oxygen is introduced from the bottom of the oxidation reaction device, and is firstly treated by a micro-interface generator 62 and then undergoes oxidation reaction, so as to improve the mass transfer efficiency of a phase interface, and vent holes 75 are formed in the tops of the first-stage oxidation reactor 70 and the second-stage oxidation reactor 60.
The oxidation water after oxidation reaction in the oxidation reaction device returns to the waste water heat exchanger 50 from the top of the oxidation reaction device for heat exchange and cooling treatment, and then is conveyed to the finished product tank 90 for storage.
The above steps are repeated circularly to make the whole intelligent processing system run stably.
The utility model discloses an intelligence processing system has guaranteed that wet oxidation goes on under normal atmospheric temperature and pressure state through laying little interface emergence system, and need not adopt the catalyst. Compared with the intelligent treatment system of the ethylene desulfurization waste water in the prior art, the utility model discloses an intelligent treatment system equipment subassembly is few, area is little, the energy consumption is low, with low costs, the security is high, the reaction is controllable, is worth extensively popularizing and applying.
In a word, the utility model discloses an intelligent processing system of ethylene desulfurization waste water treatment capacity is high, handles the back through this intelligent processing system, can guarantee under the energy consumption condition that is lower than, possess higher treatment effect, and harmful, COD clearance can reach 99%.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides an intelligent processing system of ethylene desulfurization waste water which characterized in that includes: the system comprises an alkaline washing tower, a waste water heat exchanger, a waste water heater and an oxidation reaction device which are sequentially connected, wherein the waste water heat exchanger is provided with a material inlet, a material outlet, a heat source inlet and a heat source outlet, and the alkaline washing tower is provided with an alkaline liquor circulating pipeline;
the oxidized water from the oxidation reaction device enters the wastewater heat exchanger from the heat source inlet, the heat source outlet is connected with a finished product tank, the alkali liquor circulation pipeline is connected with a desulfurized wastewater branch pipe, the desulfurized wastewater branch pipe is connected with the material inlet, and the material outlet is connected with the wastewater heater;
the device comprises an oxidation reaction device, a pipeline and a gas inlet, wherein micro-interface generators are symmetrically arranged on two side walls in the oxidation reaction device and used for dispersing broken gas into bubbles;
the oxidation reaction device comprises a primary oxidation reactor and a secondary oxidation reactor which are sequentially connected, and oxidation water after oxidation treatment of the primary oxidation reactor continuously enters the secondary oxidation reactor for oxidation treatment;
the intelligent system is composed of a big data intelligent control center for processing, storing and analyzing data, an output execution module for controlling the equipment through the output data information, and an equipment terminal controller, wherein the big data intelligent control center is composed of a data acquisition module, a data mining module, a data storage module and a data transmission module.
2. The intelligent processing system according to claim 1, further comprising a dehydration engine coupled to the caustic tower.
3. The intelligent processing system according to claim 2, wherein a raw water pump for transporting desulfurization wastewater is arranged between the caustic tower and the dehydrator.
4. The intelligent processing system according to claim 1, wherein the micro-interface generator is a pneumatic micro-interface generator.
5. The intelligent treatment system according to claim 1, wherein a micro-interface generator is arranged at the bottom of the oxidation reaction device, the number of the micro-interface generators is 3, and each micro-interface generator is communicated with the air inlet.
6. The intelligent treatment system according to any one of claims 1 to 5, wherein the side upper part of the oxidation reaction device is provided with an oxidized water outlet, and the oxidized water outlet is connected with the heat source inlet through a pipeline.
7. The intelligent treatment system according to claim 3, wherein a delivery pump is arranged on a connecting pipeline of the wastewater heat exchanger and the dehydrator.
8. The intelligent processing system according to any of claims 1-5, further comprising an air compressor, the air compressor being in communication with the air inlet.
9. The intelligent processing system according to claim 2, wherein the extractor is of the type of a vacuum belt extractor.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340916A (en) * | 2020-10-21 | 2021-02-09 | 南京延长反应技术研究院有限公司 | Wet oxidation strengthening micro-interface system |
| CN112340915A (en) * | 2020-10-21 | 2021-02-09 | 南京延长反应技术研究院有限公司 | Wet-type oxidation micro-interface system |
| CN112755768A (en) * | 2020-12-17 | 2021-05-07 | 南京延长反应技术研究院有限公司 | Ammonium sulfite oxidation enhanced micro-interface reaction system and method |
| CN114890532A (en) * | 2022-07-12 | 2022-08-12 | 杭州沈氏节能科技股份有限公司 | Spiral casing pipe reactor and micro-channel wet oxidation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112340916A (en) * | 2020-10-21 | 2021-02-09 | 南京延长反应技术研究院有限公司 | Wet oxidation strengthening micro-interface system |
| CN112340915A (en) * | 2020-10-21 | 2021-02-09 | 南京延长反应技术研究院有限公司 | Wet-type oxidation micro-interface system |
| WO2022082625A1 (en) * | 2020-10-21 | 2022-04-28 | 南京延长反应技术研究院有限公司 | Wet-type oxidation enhancing micro-interface system |
| WO2022082626A1 (en) * | 2020-10-21 | 2022-04-28 | 南京延长反应技术研究院有限公司 | Wet oxidation micro-interface system |
| CN112755768A (en) * | 2020-12-17 | 2021-05-07 | 南京延长反应技术研究院有限公司 | Ammonium sulfite oxidation enhanced micro-interface reaction system and method |
| CN114890532A (en) * | 2022-07-12 | 2022-08-12 | 杭州沈氏节能科技股份有限公司 | Spiral casing pipe reactor and micro-channel wet oxidation system |
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