CN210481072U - Wet-type advanced oxidation unit for industrial organic wastewater - Google Patents
Wet-type advanced oxidation unit for industrial organic wastewater Download PDFInfo
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- CN210481072U CN210481072U CN201921258298.0U CN201921258298U CN210481072U CN 210481072 U CN210481072 U CN 210481072U CN 201921258298 U CN201921258298 U CN 201921258298U CN 210481072 U CN210481072 U CN 210481072U
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Abstract
The utility model belongs to the technical field of industrial waste water treatment, specificly relate to an industrial organic waste water wet-type advanced oxidation unit. Comprises a pretreatment device, a preheater group, a heating device, a reactor group and a tail gas treatment device; an air storage tank in the pretreatment device is connected with a preheater in a preheater group through a pipeline, the preheater in the preheater group is connected with an auxiliary heater in an auxiliary heater group in a heating device through a pipeline, a heater in the heating device is connected with a reactor in the reactor group through a pipeline, and the preheater in the preheater group is connected with an oxidation liquid tank in a tail gas treatment device through a pipeline. The wet advanced oxidation unit for industrial organic wastewater of the utility model carries out wet advanced oxidation on the industrial organic wastewater, recycles heat energy and has good energy-saving effect; tail gas generated in the reaction process is absorbed, recovered and purified, so that atmospheric pollution is prevented; multi-stage preheating is adopted for recycling energy; the use efficiency of the reactor is improved.
Description
Technical Field
The utility model belongs to the technical field of industrial waste water treatment, specificly relate to an industrial organic waste water wet-type advanced oxidation unit.
Background
With the rapid development of industry, the variety and quantity of waste water are rapidly increased, the pollution to water is becoming wide and serious, and the health and safety of human beings are threatened. Since the composition of industrial waste water is more complex and some are toxic, it is more difficult and important to treat industrial waste water than to treat municipal sewage. In industrial wastewater of chemical production, food processing, paper making and the like, organic substances such as carbohydrates, proteins, grease, lignin and the like are contained. The substances exist in sewage in a suspended or dissolved state, and the pollutants cause the reduction of dissolved oxygen in the sewage, influence the growth of fishes and other aquatic organisms, easily cause water eutrophication and have large harm.
The wet advanced oxidation is an efficient method for treating high-concentration degradation-resistant organic wastewater developed on the basis of wet oxidation. Under the action of certain temperature and pressure, oxygen-enriched gas or oxygen is used as oxidant, and the catalytic action of catalyst is utilized to make the organic matter and ammonia in the sewage respectively undergo the processes of oxidation decomposition to form CO2、N2And H2O, etc. to achieve the purpose of purification. The catalytic wet oxidation method has the characteristics of high purification efficiency, simple process and the like for various industrial organic wastewater containing high chemical oxygen content or compounds which can not be degraded by a biochemical method.
However, the industrial organic wastewater contains other components, and tail gas generated in the reaction process needs to be further recycled to prevent air pollution; the selective form of the reactor further reduces the investment cost and improves the use efficiency of the equipment; the heat energy generated in the treatment process needs to be recycled.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a wet-type advanced oxidation unit for industrial organic wastewater. The oxidation unit performs wet advanced oxidation on industrial organic wastewater and recycles heat energy, so that the energy-saving effect is good; tail gas generated in the reaction process is absorbed, recycled and purified to prevent air pollution; multi-stage preheating is adopted for recycling energy; the use efficiency of the reactor is improved.
The wet advanced oxidation unit for industrial organic wastewater comprises a pretreatment device, a preheater group, a heating device, a reactor group and a tail gas treatment device; an air storage tank in the pretreatment device is connected with a preheater in a preheater group through a pipeline, the preheater in the preheater group is connected with an auxiliary heater in an auxiliary heater group in a heating device through a pipeline, a heater in the heating device is connected with a reactor in a reactor group through a pipeline, the reactor in the reactor group is connected with the preheater in the preheater group through a pipeline, and the preheater in the preheater group is connected with an oxidation liquid tank in a tail gas treatment device through a pipeline.
The pretreatment device consists of a dosing tank, a regulating tank, a primary filter, a feeding pump, a circulating pump, a secondary filter, a storage tank, a high-pressure delivery pump, a high-pressure air compressor, a mixer, an air storage tank and corresponding pipelines.
Pretreatment device includes the surge tank, surge tank upper portion feed inlet passes through the tube coupling and adds the medicinal cupping, surge tank upper portion connection wastewater pipeline, surge tank bottom one side links to each other with the circulating pump through the pipeline, surge tank bottom opposite side passes through the pipeline and links to each other with the charge pump, the charge pump passes through the pipeline and links to each other with the primary filter, the primary filter passes through the pipeline and links to each other with the secondary filter, the secondary filter passes through the pipeline and links to each other with the storage jar, the storage jar passes through the pipeline and links to each other with high-pressure delivery pump, high-pressure delivery pump passes through the pipeline and links to each other with the blender, the pipeline connection air storage.
The outlet of the mixer is connected with the inlet of the tube side of the preheater in the preheater group through a pipeline.
The heating device comprises an auxiliary heater group, a heat conduction oil furnace and a heater.
The tube pass outlet of the preheater in the preheater group is connected with the tube pass inlet of the auxiliary heater in the auxiliary heater group through a pipeline, the tube pass outlet of the auxiliary heater in the auxiliary heater group is connected with the heater through a pipeline, and the tube pass of the heater is connected with the reactor inlet in the reactor group through a pipeline.
The outlet of the reactor in the reactor group is connected with the shell side inlet of the preheater in the preheater group through a pipeline; the shell pass inlet and outlet of the auxiliary heater in the auxiliary heater group, the shell pass inlet and outlet of the heater and the jacket inlet and outlet of the reactor in the reactor group are respectively connected with the inlet and outlet pipelines of the heat-conducting oil furnace through pipelines and are controlled by valves.
The reactor group is a multistage parallel tubular reactor and is connected in series, and each reactor is internally provided with a certain volume of single-component or multi-component catalyst, so that the investment of single equipment can be reduced, the reaction efficiency can be increased, and the reaction time can be shortened.
The heater is connected in series in front of the reactor group to accurately control the temperature entering the reactor group.
And (4) carrying out three-stage steam washing, absorbing and purifying on the material gas after the oxidation reaction to meet the emission requirement.
The device adopts an automatic valve, a sensor is arranged on equipment, and the automatic valve is connected to a controller for automatic control and remote monitoring.
The shell side inlet of the preheater in the preheater group is connected with the outlet of the reactor in the reactor group through a pipeline, and the shell side outlet of the preheater in the preheater group is connected with the inlet of the oxidation liquid tank through a pipeline.
The tail gas treatment device comprises an oxidation liquid tank, a first-stage steam washing tower, a second-stage steam washing tower, a third-stage steam washing tower and a washing liquid conveying pump.
The inlet of the oxidation liquid tank is connected with the shell pass outlet of the preheater in the preheater group through a pipeline, the liquid outlet at one side of the bottom of the oxidation liquid tank is connected with the next process, the gas outlet of the oxidation liquid tank is connected with the gas inlet of the first-stage gas washing tower through a pipeline, the first-stage gas washing tower is connected with the gas inlet of the second-stage gas washing tower through a pipeline, the second-stage gas washing tower is connected with the gas inlet of the third-stage gas washing tower through a pipeline, and the upper part of the third-stage gas washing tower is provided with a gas; the lower outlet of the third-stage gas washing tower is connected with the inlet of a washing liquid delivery pump through a pipeline, and the outlet of the washing liquid delivery pump is connected with the lower inlet of the regulating tank through a pipeline.
The preheater group is composed of 2-4 stages of preheaters which are connected in series, and the full recycling of energy is achieved.
An auxiliary heater group in the heating device is formed by connecting 2-4 stages of auxiliary heaters in series and carries out gradient heating on the materials.
The wet-type advanced oxidation unit for industrial organic wastewater has the working process as follows:
industrial organic wastewater enters an adjusting tank through a wastewater pipeline, a stirring device is started, materials in a dosing tank enter the adjusting tank through a pipeline to adjust the pH value of the industrial organic wastewater, and a circulating pump is started to perform internal circulating stirring to homogenize the materials; the qualified product enters a first-stage filter and a second-stage filter in sequence through an outlet of a feed pump through pipelines to be filtered, and suspended matters and insoluble impurities are removed; the filtered materials enter the storage tank through a pipeline for temporary storage.
The high-pressure air compressor compresses air and conveys the compressed air to the air storage tank through a pipeline, the air storage tank conveys the high-pressure air into the mixer through the pipeline, meanwhile, materials in the storage tank are fully mixed with the high-pressure air in the mixer through the high-pressure conveying pump, the high-pressure materials are mixed and then enter a tube pass of a preheater of the preheater group to exchange heat with materials discharged by the reactor group, and the heated materials enter a tube pass of an auxiliary heater of the auxiliary heater group; the materials in the auxiliary heater group are heated to a set temperature through the shell pass heat conducting oil of the auxiliary heater and then enter the tube pass of the heater, the materials in the heater are heated to a set reaction temperature through the shell pass heat conducting oil and then enter the reactor of the reactor group for advanced oxidation reaction, and meanwhile, the heat conducting oil is introduced into the jacket of the reactor group for reaction temperature control.
And after the reaction is finished, the obtained oxidation liquid enters a shell pass of a preheater of the preheater group from a reactor of the reactor group, the heat exchange is carried out with the high-pressure material entering from the mixer, the oxidation liquid after being cooled enters an oxidation liquid tank, the liquid is discharged for next procedure treatment, the gas is respectively discharged after reaching the standard through the washing purification of a first-stage gas washing tower, a second-stage gas washing tower and a third-stage gas washing tower, and the washing liquid of the gas washing tower is conveyed into a regulating tank through a washing liquid conveying pump for treatment.
Compared with the prior art, the utility model, following beneficial effect has:
the wet advanced oxidation unit for industrial organic wastewater of the utility model carries out wet advanced oxidation on the industrial organic wastewater and recycles heat energy, thus having good energy-saving effect; tail gas generated in the reaction process is absorbed, recycled and purified to prevent air pollution; multi-stage preheating is adopted for recycling energy; the use efficiency of the reactor is improved, and the investment cost is further reduced.
Drawings
FIG. 1 is a schematic structural diagram of a wet advanced oxidation unit for industrial organic wastewater.
In the figure: 1. a medicine adding tank; 2. a conditioning tank; 3. a first stage filter; 4. a secondary filter; 5. storing the tank; 6. a high pressure air compressor; 7. a mixer; 8. an air reservoir; 9. a group of preheaters; 10. an auxiliary heater group; 11. a reactor group; 12. a heater; 13. a heat-conducting oil furnace; 14. an oxidation liquid tank; 15. a first-stage steam washing tower; 16. a secondary steam washing tower; 17. a third-stage steam washing tower; 18. a wash liquor delivery pump; 19. a high pressure delivery pump; 20. a feed pump; 21 circulating pump.
Detailed Description
The present invention will be further described with reference to the following examples.
Example 1
The utility model relates to a wet-type advanced oxidation unit for industrial organic wastewater, which comprises a pretreatment device, a preheater group 9, a heating device, a reactor group 11 and a tail gas treatment device; an air storage tank 8 in the pretreatment device is connected with a preheater in a preheater group 9 through a pipeline, the preheater in the preheater group 9 is connected with an auxiliary heater in an auxiliary heater group 10 in the heating device through a pipeline, a heater 12 in the heating device is connected with a reactor in a reactor group 11 through a pipeline, the reactor in the reactor group 11 is connected with the preheater in the preheater group 9 through a pipeline, and the preheater in the preheater group 9 is connected with an oxidation liquid tank 14 in the tail gas treatment device through a pipeline.
Pretreatment device includes surge tank 2, surge tank 2 upper portion feed inlet passes through tube coupling and adds medicinal cupping 1, surge tank upper portion connection waste pipe way, surge tank 2 bottom one side links to each other with circulating pump 21 through the pipeline, surge tank 2 bottom opposite side passes through the pipeline and links to each other with feed pump 20, feed pump 20 passes through the pipeline and links to each other with primary filter 3, primary filter 3 passes through the pipeline and links to each other with secondary filter 4, secondary filter 4 passes through the pipeline and links to each other with storage jar 5, storage jar 5 passes through the pipeline and links to each other with high-pressure delivery pump 19, high-pressure delivery pump 19 passes through the pipeline and links to each other with blender 7, 7 imports of blender pass through tube coupling air storage tank 8, air storage tank 8 passes through pipeline and.
The tube pass outlet of the preheater in the preheater group 9 is connected with the tube pass inlet of the auxiliary heater in the auxiliary heater group 10 through a pipeline, the tube pass outlet of the auxiliary heater in the auxiliary heater group 10 is connected with the heater 12 through a pipeline, and the tube pass of the heater 12 is connected with the reactor inlet in the reactor group 11 through a pipeline.
The outlet of the reactor in the reactor group 11 is connected with the shell side inlet of the preheater in the preheater group 9 through a pipeline; the shell pass inlet and outlet of the auxiliary heater in the auxiliary heater group 10, the shell pass inlet and outlet of the heater 12, and the jacket inlet and outlet of the reactor in the reactor group 11 are respectively connected with the inlet and outlet pipelines of the heat-conducting oil furnace 13 through pipelines and are controlled by valves.
An inlet of an oxidation liquid tank 14 is connected with a shell pass outlet of a preheater in the preheater group 9 through a pipeline, a liquid outlet at one side of the bottom of the oxidation liquid tank 14 is connected with the next process, a gas outlet of the oxidation liquid tank 14 is connected with a gas inlet of a first-stage gas washing tower 15 through a pipeline, the first-stage gas washing tower 15 is connected with a gas inlet of a second-stage gas washing tower 16 through a pipeline, the second-stage gas washing tower 16 is connected with a gas inlet of a third-stage gas washing tower 17 through a pipeline, and a gas discharge port is arranged at the upper part of the third-stage gas washing; the lower outlet of the third-stage gas washing tower 17 is connected with the inlet of a washing liquid delivery pump 18 through a pipeline, and the outlet of the washing liquid delivery pump 18 is connected with the lower inlet of the regulating tank 2 through a pipeline.
The reactor group 11 is a multi-stage parallel tubular reactor, and is connected in series, and each reactor is filled with a certain volume of single-component or multi-component catalyst.
The wet advanced oxidation unit for industrial organic wastewater in this embodiment 1 has the following working process:
industrial organic wastewater enters the adjusting tank 2 through a wastewater pipeline, the stirring device is started, materials in the dosing tank 1 enter the adjusting tank 2 through a pipeline to adjust the pH value of the industrial organic wastewater, and the circulating pump 21 is started to perform internal circulating stirring to homogenize the materials; the qualified mixture enters the primary filter 3 and the secondary filter 4 in sequence through the outlet of the feeding pump 20 through pipelines for filtering to remove suspended matters and insoluble impurities; the filtered materials enter the storage tank 5 through a pipeline for temporary storage.
The high-pressure air compressor 6 compresses air and conveys the compressed air to the air storage tank 8 through a pipeline, the air storage tank conveys the high-pressure air into the mixer 7 through the pipeline, meanwhile, materials in the storage tank 5 are fully mixed with the high-pressure air in the mixer 7 through the high-pressure conveying pump 19, the high-pressure materials are mixed and then enter a tube pass of a preheater of the preheater group 9 to exchange heat with materials discharged by the reactor group 11, and the heated materials enter a tube pass of an auxiliary heater of the auxiliary heater group 10; the materials in the auxiliary heater group 10 are heated to a set temperature through the shell pass heat conduction oil gradient of the auxiliary heater and then enter the tube pass of the heater 12, the materials in the heater 12 are heated to a set reaction temperature through the shell pass heat conduction oil and then enter the reactor of the reactor group 11 for advanced oxidation reaction, and meanwhile, the heat conduction oil is introduced into the jacket of the reactor group 11 for reaction temperature control.
And the oxidation liquid obtained after the reaction enters a shell pass of a preheater of the preheater group 9 from a reactor of the reactor group 11, exchanges heat with the high-pressure material entering from the mixer 7, the oxidation liquid after temperature reduction enters an oxidation liquid tank 14, the liquid is discharged for next process treatment, the gas is respectively discharged after being washed and purified by a first-stage gas washing tower 15, a second-stage gas washing tower 16 and a third-stage gas washing tower 17 and reaches the standard, and the washing liquid of the gas washing towers is conveyed into an adjusting tank 2 for treatment by a washing liquid conveying pump 18.
Claims (6)
1. The wet advanced oxidation unit for industrial organic wastewater is characterized in that: comprises a pretreatment device, a preheater group (9), a heating device, a reactor group (11) and a tail gas treatment device; an air storage tank (8) in the pretreatment device is connected with a preheater in a preheater group (9) through a pipeline, the preheater in the preheater group (9) is connected with an auxiliary heater in an auxiliary heater group (10) in the heating device through a pipeline, a heater (12) in the heating device is connected with a reactor in a reactor group (11) through a pipeline, the reactor in the reactor group (11) is connected with the preheater in the preheater group (9) through a pipeline, and the preheater in the preheater group (9) is connected with an oxidation liquid tank (14) in the tail gas treatment device through a pipeline.
2. The industrial organic wastewater wet advanced oxidation unit according to claim 1, characterized in that: pretreatment device includes surge tank (2), surge tank (2) upper portion feed inlet passes through tube coupling dosing tank (1), surge tank upper portion connection waste water pipeline, surge tank (2) bottom one side links to each other with circulating pump (21) through the pipeline, surge tank (2) bottom opposite side passes through the pipeline and links to each other with feed pump (20), feed pump (20) pass through the pipeline and link to each other with primary filter (3), primary filter (3) pass through the pipeline and link to each other with secondary filter (4), secondary filter (4) pass through the pipeline and link to each other with storage jar (5), storage jar (5) pass through the pipeline and link to each other with high-pressure delivery pump (19), high-pressure delivery pump (19) pass through the pipeline and link to each other with blender (7), air storage tank (8) import passes through tube coupling air storage tank (8), air storage tank (8) pass through pipeline and high-pressure compressor air (6) exit.
3. The industrial organic wastewater wet advanced oxidation unit according to claim 1, characterized in that: the tube pass outlet of the preheater in the preheater group (9) is connected with the tube pass inlet of the auxiliary heater in the auxiliary heater group (10) through a pipeline, the tube pass outlet of the auxiliary heater in the auxiliary heater group (10) is connected with the heater (12) through a pipeline, and the tube pass of the heater (12) is connected with the reactor inlet in the reactor group (11) through a pipeline.
4. The industrial organic wastewater wet advanced oxidation unit according to claim 1, characterized in that: the outlet of the reactor in the reactor group (11) is connected with the shell side inlet of the preheater in the preheater group (9) through a pipeline; the shell pass inlet and outlet of the auxiliary heater in the auxiliary heater group (10), the shell pass inlet and outlet of the heater (12) and the jacket inlet and outlet of the reactor in the reactor group (11) are respectively connected with the inlet and outlet pipelines of the heat-conducting oil furnace (13) through pipelines and are controlled by valves.
5. The industrial organic wastewater wet advanced oxidation unit according to claim 1, characterized in that: an inlet of the oxidation liquid tank (14) is connected with a shell pass outlet of a preheater in the preheater group (9) through a pipeline, a liquid outlet at one side of the bottom of the oxidation liquid tank (14) is connected with the next process, a gas outlet of the oxidation liquid tank (14) is connected with a gas inlet of a first-stage gas washing tower (15) through a pipeline, the first-stage gas washing tower (15) is connected with a gas inlet of a second-stage gas washing tower (16) through a pipeline, the second-stage gas washing tower (16) is connected with a gas inlet of a third-stage gas washing tower (17) through a pipeline, and a gas discharge port is arranged at the upper part of the third-stage gas washing tower (; the lower outlet of the three-stage gas washing tower (17) is connected with the inlet of a washing liquid delivery pump (18) through a pipeline, and the outlet of the washing liquid delivery pump (18) is connected with the lower inlet of the regulating tank (2) through a pipeline.
6. The industrial organic wastewater wet advanced oxidation unit according to claim 1, characterized in that: the reactor group (11) is a multi-stage parallel tubular reactor which is connected in series, and each reactor is filled with a certain volume of single-component or multi-component catalyst.
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| CN201921258298.0U CN210481072U (en) | 2019-08-05 | 2019-08-05 | Wet-type advanced oxidation unit for industrial organic wastewater |
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| CN201921258298.0U CN210481072U (en) | 2019-08-05 | 2019-08-05 | Wet-type advanced oxidation unit for industrial organic wastewater |
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