CN112044104A - Oil-water removing device and method for oil-water-containing material - Google Patents
Oil-water removing device and method for oil-water-containing material Download PDFInfo
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- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
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Abstract
The invention provides an oil-water removing device and method for an oil-water-containing material, wherein the oil-water removing device comprises a roasting furnace, a first vacuum pump, a cooling unit, a gas-water separation tank, a second vacuum pump and a spray tower which are communicated with one another through pipelines in sequence; the bottom of the gas-water separation tank is communicated with a first water pump, and the second vacuum pump is communicated with a top pipeline of the gas-water separation tank. According to the oil-water removing device for the oil-water-containing materials, disclosed by the invention, the oil-water-containing materials are heated by the roasting furnace under the vacuum condition, the oil-water gasification temperature is reduced, the energy is saved, the first vacuum pump is used for maintaining the negative pressure of the roasting furnace, the gasified oil-water is timely conveyed to the condensing unit for condensation, and the treatment efficiency is high. The oil-water removing device for the oily water material has relatively low operation temperature and is safer. The oil-water removing device for the oily water material separates volatile waste gas through the gas-water separation tank, and the volatile waste gas is sent to the spray tower for treatment, so that the environment pollution caused by the waste gas is avoided.
Description
Technical Field
The invention relates to the field of oily water material treatment, in particular to an oil-water removing device and method for an oily water material.
Background
The pyrolysis technology is mature and perfect as the harmless treatment technology of the oil-containing materials, but the pyrolysis equipment has the following defects due to the specific conditions of the pyrolysis technology: the pyrolysis temperature of the pyrolysis process is high, so that the oil-containing material is easy to generate coking and sintering effects in the pyrolysis reaction furnace. The coke and the sinter are easy to adhere to the inside of the reaction furnace and are difficult to clean and remove, so that the production efficiency of equipment is greatly reduced, and the material after pyrolysis treatment is kept at a higher temperature and contains more heat energy, and is directly removed to be cooled. The heat energy is equal to the heating energy consumption of the oil-containing material for pyrolysis treatment, the direct discharge is very waste, and if the heat energy can be recycled, the operation cost for treating the oil-containing material is greatly reduced. In addition, waste gases are generated during the pyrolysis process, which causes pollution.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide an oil-water removing device and method for an oil-water-containing material.
In order to achieve the purpose, the invention adopts the technical scheme that: an oil-water removing device for materials containing oil and water comprises a roasting furnace, a first vacuum pump, a cooling unit, a gas-water separation tank, a second vacuum pump and a spray tower which are communicated with one another through pipelines in sequence; the bottom of the gas-water separation tank is communicated with a first water pump, and the second vacuum pump is communicated with a top pipeline of the gas-water separation tank.
The oil-water removing device for the oil-water-containing material heats the oil-water-containing material through the roasting furnace, reduces the air pressure in the roasting furnace through the first vacuum pump, further reduces the evaporation temperature of oil and water in the material, and conveys the oil and water in the heated oil-water-containing material to the cooling unit through the first vacuum pump after the oil and water in the heated oil-water-containing material are separated from the material and volatilize; the cooling unit condenses the gas oil and water volatilized by the burning furnace into oil and water, and the oil and water are conveyed to the gas-water separation tank, the gas-water separation tank maintains negative pressure through the second vacuum pump, so that volatile waste gas is separated from oil and water under the conditions of the negative pressure of the second vacuum pump and condensation waste heat, and the volatile waste gas is conveyed to the spray tower through the second vacuum pump to be subjected to waste gas treatment. And oil and water in the gas-water separation tank are output by a first water pump to be subjected to standing separation. The oil-water removing device for the oil-water-containing materials heats the oil-water-containing materials through the roasting furnace under the vacuum condition, the oil-water gasification temperature is reduced, the energy is saved, the first vacuum pump is used for maintaining the negative air pressure of the roasting furnace, the gasified oil-water is timely conveyed to the condensing unit for condensation, and the treatment efficiency is high. The oil-water removing device for the oily water material is relatively low in operation temperature and safer. The oil-water removing device for the oily water material separates volatile waste gas through the gas-water separation tank, the volatile waste gas is sent into the spray tower for treatment, the waste gas reacts with corresponding spray liquid in the spray tower to remove related pollutants, and the qualified tail gas is discharged into the atmosphere, so that the oil-water removing device is more environment-friendly and avoids the environment pollution caused by the waste gas. The oil-water removing device for the oily water material can discharge oil and water in the material, so that the purity of the material is improved, and the utilization value of the material is improved; the oil-water removing device for the oil-water-containing material can separate volatile wastewater in the discharged oil-water mixture and then remove the volatile wastewater, and the oil-water mixture can be reused.
Preferably, the cooling unit comprises a heat exchanger and a cooling tower, the heat exchanger is provided with a refrigerant inlet, a refrigerant outlet, a heat medium inlet and a heat medium outlet, the heat medium inlet is communicated with the first vacuum pump pipeline, and the heat medium outlet is communicated with the gas-water separation tank pipeline.
Preferably, a refrigerant inlet and a refrigerant outlet of the heat exchanger are communicated with the cooling tower circulation pipeline.
The cooling unit of the oil-water removing device for the oily water materials comprises the heat exchanger and the cooling tower, and the cooling tower cools the condensed water, so that the circulation of the condensed water is realized, and the cost is saved.
Preferably, the oil-water removal device further comprises a control unit, the roasting furnace is provided with a furnace chamber and a furnace chamber heater, the furnace chamber is communicated with the first vacuum pump pipeline, a first temperature sensor and an air pressure sensor are arranged in the furnace chamber, the control unit is respectively electrically connected with the first temperature sensor, the air pressure sensor, the furnace chamber heater and the first vacuum pump, the control unit controls the furnace chamber heater to operate according to signals fed back by the first temperature sensor, and the control unit controls the first vacuum pump to operate according to signals fed back by the air pressure sensor.
The oil-water removing device for the oil-water-containing material can realize full-automatic control of the vacuum degree and the temperature of the roasting furnace, and improves the treatment efficiency.
Preferably, the cooling tower is provided with a refrigeration mechanism, a second circulating water pump is communicated between the cooling tower and a refrigerant inlet of the heat exchanger, a second temperature sensor is arranged at the refrigerant inlet of the heat exchanger, the control unit is respectively electrically connected with the second temperature sensor, the refrigeration mechanism and the second circulating water pump, and the control unit controls the refrigeration mechanism and the second circulating water pump to operate according to signals fed back by the second temperature sensor.
The oil-water removing device for the oil-water-containing material can realize full-automatic control on the temperature and the flow of condensed water, and improves the treatment efficiency.
Preferably, a first liquid level meter is arranged in the gas-water separation tank, the control unit is respectively electrically connected with the first liquid level meter and the first water pump, the control unit controls the first water pump to operate according to a signal fed back by the first liquid level meter, and the first water pump is a diaphragm pump.
The oil-water removing device for the oil-water-containing material can realize automatic control of the liquid level in the gas-water separation tank.
Preferably, the spray tower is provided with the spray thrower and sprays the liquid storage tank, the spray thrower with it communicates to spray liquid storage tank pipeline, it is provided with the second level gauge and sprays liquid feeding mechanism to spray the liquid storage tank, the control unit respectively with the second level gauge, spray liquid feeding mechanism electricity and be connected, the control unit basis the signal control of second level gauge feedback it moves to spray liquid feeding mechanism.
The oil-water removing device for the oily water materials can realize automatic liquid adding and liquid level control of the spraying liquid storage tank.
Preferably, the roasting furnace is provided with an explosion-proof mechanism, the explosion-proof mechanism is an explosion-proof membrane, the oil-water removing device further comprises a liquid storage tank, and the liquid storage tank is communicated with the first water pump.
The oil-water removing device for the oil-water-containing material is provided with the explosion-proof mechanism on the roasting furnace, so that the running safety of the equipment is improved.
The invention also provides an oil-water removing method for an oil-water-containing material, which applies any one of the oil-water removing devices, and comprises the following steps:
(1) heating the oil-water-containing material under the condition of negative air pressure to gasify oil and water in the oil-water material;
(2) cooling the gasified oil-water and condensing;
(3) and conveying gas volatilized from the condensed oil-water under the negative pressure condition to a spray tower for spraying treatment.
Preferably, the oil and water removing method comprises the following steps:
(1) heating the oil-water-containing material in a roasting furnace, and vacuumizing the roasting furnace through a first vacuum pump to form a negative pressure condition so as to gasify oil and water in the oil-water material;
(2) the gasified oil-water is conveyed to a cooling unit through a first vacuum pump to be cooled and condensed;
(3) conveying the condensed oil-water to a gas-water separation tank, vacuumizing the gas-water separation tank by a second vacuum pump, volatilizing gas from the condensed oil-water under the condition of negative pressure, and conveying the volatilized gas to a spray tower through the second vacuum pump for spraying treatment; and the liquid in the gas-water separation tank is output by a first water pump and then stands.
The invention has the beneficial effects that: the invention provides an oil-water removing device and method for an oil-water-containing material, wherein the oil-water removing device for the oil-water-containing material heats the oil-water-containing material through a roasting furnace, reduces the air pressure in the roasting furnace through a first vacuum pump, further reduces the evaporation temperature of oil and water in the material, and conveys the oil and water in the heated oil-water-containing material to a cooling unit through the first vacuum pump after the oil and water in the heated oil-water-containing material are separated from the material to volatilize; the cooling unit condenses the gas oil and water volatilized by the burning furnace into oil and water, and the oil and water are conveyed to the gas-water separation tank, the gas-water separation tank maintains negative pressure through the second vacuum pump, so that volatile waste gas is separated from oil and water under the conditions of the negative pressure of the second vacuum pump and condensation waste heat, and the volatile waste gas is conveyed to the spray tower through the second vacuum pump to be subjected to waste gas treatment. And oil and water in the gas-water separation tank are output by a first water pump to be subjected to standing separation. According to the oil-water removing device for the oil-water-containing materials, disclosed by the invention, the oil-water-containing materials are heated by the roasting furnace under the vacuum condition, the oil-water gasification temperature is reduced, the energy is saved, the first vacuum pump is used for maintaining the negative pressure of the roasting furnace, the gasified oil-water is timely conveyed to the condensing unit for condensation, and the treatment efficiency is high. The oil-water removing device for the oily water material has relatively low operation temperature and is safer. The oil-water removing device for the oily water material separates volatile waste gas through the gas-water separation tank, the volatile waste gas is sent into the spray tower for treatment, the waste gas reacts with corresponding spray liquid in the spray tower to remove related pollutants, and the tail gas is discharged into the atmosphere after being qualified, so that the oil-water removing device is more environment-friendly, and avoids the environment pollution caused by the waste gas. The oil-water removing device for the oily water material can discharge oil and water in the material, improve the purity of the material and improve the utilization value of the material; the oil-water removing device for the oil-water-containing material can separate volatile wastewater in the discharged oil-water mixture and then remove the volatile wastewater, and the oil-water mixture can be reused.
Drawings
Fig. 1 is a schematic structural diagram of an oil-water removing device for an oil-water-containing material according to an embodiment of the present invention.
The device comprises a roasting furnace 1, a roasting furnace 2, a first vacuum pump 3, a heat exchanger 31, a refrigerant inlet 32, a refrigerant outlet 33, a heat medium inlet 34, a heat medium outlet 4, a cooling tower 41, a refrigerating mechanism 5, a gas-water separation tank 6, a second vacuum pump 7, a spray tower 8, a first water pump 9, a second circulating water pump 10 and a liquid storage tank.
Detailed Description
To better illustrate the objects, aspects and advantages of the present invention, the present invention will be further described with reference to specific examples.
Example 1
As shown in fig. 1, the oil-water removing device for an oil-water-containing material according to an embodiment of the present invention includes a roasting furnace 1, a first vacuum pump 2, a cooling unit, a gas-water separation tank 5, a second vacuum pump 6, and a spray tower 7, which are sequentially connected by a pipeline; the bottom of the gas-water separation tank 5 is communicated with a first water pump 8, and a second vacuum pump 6 is communicated with a pipeline at the top of the gas-water separation tank 5.
The oil-water removing device for the oil-water-containing material heats the oil-water-containing material through the roasting furnace, reduces the air pressure in the roasting furnace through the first vacuum pump, further reduces the evaporation temperature of oil and water in the material, and conveys the oil and water in the heated oil-water-containing material to the cooling unit through the first vacuum pump after the oil and water in the heated oil-water-containing material are separated from the material and volatilize; the cooling unit condenses the gas oil and water volatilized by the burning furnace into oil and water, and the oil and water are conveyed to the gas-water separation tank, the gas-water separation tank maintains negative pressure through the second vacuum pump, so that volatile waste gas is separated from oil and water under the conditions of the negative pressure of the second vacuum pump and condensation waste heat, and the volatile waste gas is conveyed to the spray tower through the second vacuum pump to be subjected to waste gas treatment. And oil and water in the gas-water separation tank are output by a first water pump to be subjected to standing separation. The deoiling water installation of oily water material of this embodiment carries out heat treatment to oily water material through roasting the stove under vacuum condition, has reduced profit gasification temperature, has practiced thrift the energy, and first vacuum pump not only is used for maintaining the negative pressure of roasting the stove in addition, in time carries the profit after will gasifying to the condensing unit in addition and condenses, and the treatment effeciency is high. The oil-water removing device for the oily water material has relatively low operating temperature and is safer. The deoiling water installation of oily water material of this embodiment passes through the gas-water separation jar, separates out volatile waste gas, sends into the spray column and handles, and waste gas reacts with corresponding spray liquid in the spray column, gets rid of relevant pollutant, and the tail gas is qualified and is arranged to the atmosphere in, and waste gas pollution environment has been avoided in environmental protection more. The oil-water removing device for the oily water material can discharge oil and water in the material, so that the purity of the material is improved, and the utilization value of the material is improved; the oil-water removing device for the oily water material can separate volatile wastewater in the discharged oil-water mixture and then remove the volatile wastewater, and the oil-water mixture can be reused.
Further, the cooling unit comprises a heat exchanger 3 and a cooling tower 4, the heat exchanger 3 is provided with a refrigerant inlet 31, a refrigerant outlet 32, a heat medium inlet 33 and a heat medium outlet 34, the heat medium inlet 33 is communicated with the first vacuum pump 2 through a pipeline, and the heat medium outlet 34 is communicated with the gas-water separation tank 5 through a pipeline.
Further, a refrigerant inlet 31 and a refrigerant outlet 32 of the heat exchanger communicate with the circulation line of the cooling tower 4. The cooling unit of the oil-water removing device for the oily water materials comprises a heat exchanger and a cooling tower, and the cooling tower cools the condensed water, so that the circulation of the condensed water is realized, and the cost is saved.
In order to realize the full-automatic control of the vacuum degree and the temperature of the roasting furnace and improve the treatment efficiency, the oil-water removal device further comprises a control unit, the roasting furnace is provided with a furnace chamber and a furnace chamber heater, the furnace chamber is communicated with the first vacuum pump 2 through a pipeline, a first temperature sensor and a pressure sensor are arranged in the furnace chamber, the control unit is respectively electrically connected with the first temperature sensor, the pressure sensor, the furnace chamber heater and the first vacuum pump 2, the control unit controls the furnace chamber heater to operate according to a signal fed back by the first temperature sensor, and the control unit controls the first vacuum pump 2 to operate according to a signal fed back by the pressure sensor.
In order to realize full-automatic control of the temperature and the flow of condensed water, and improve the processing efficiency, the cooling tower 4 is provided with a refrigerating mechanism 41, a second circulating water pump 9 is communicated between the cooling tower 4 and a refrigerant inlet 31 of the heat exchanger 3, a second temperature sensor is arranged at the refrigerant inlet 31 of the heat exchanger 3, the control unit is electrically connected with the second temperature sensor, the refrigerating mechanism 41 and the second circulating water pump 9 respectively, and the control unit controls the refrigerating mechanism 41 and the second circulating water pump 9 to operate according to a signal fed back by the second temperature sensor.
In order to realize carrying out automatic control to the liquid level in the gas-water separation tank, be provided with first level gauge in the gas-water separation tank, the control unit is connected with first level gauge, first water pump electricity respectively, and the first water pump operation of control unit according to the signal control of first level gauge feedback, first water pump is the diaphragm pump.
In order to realize automatic liquid feeding and liquid level control of the spraying liquid storage tank, the spraying tower 7 is provided with a sprayer and a spraying liquid storage tank, the sprayer is communicated with a pipeline of the spraying liquid storage tank, the spraying liquid storage tank is provided with a second liquid level meter and a spraying liquid feeding mechanism, a control unit is respectively electrically connected with the second liquid level meter and the spraying liquid feeding mechanism, and the control unit controls the spraying liquid feeding mechanism to operate according to a signal fed back by the second liquid level meter.
In order to improve the operation safety of the equipment, the roasting furnace 1 is provided with an explosion-proof mechanism which is an explosion-proof film, the oil-water removing device further comprises a liquid storage tank 10, and the liquid storage tank 10 is communicated with the first water pump 9.
The oil-water is conveyed to the liquid storage tank through the first water pump after volatile waste gas is removed from the gas-water separation tank, is kept stand and separated and then is reused, and resource saving is facilitated.
The deoiling device of the oily water material of this embodiment is applied to deoiling water of oily water material of this embodiment includes following step:
(1) heating the oil-water-containing material in the roasting furnace 1, and vacuumizing the roasting furnace 1 by using a first vacuum pump 2 to form a negative pressure condition so as to gasify oil and water in the oil-water material;
(2) the gasified oil-water is conveyed to a heat exchanger 3 of a cooling unit through a first vacuum pump 2 to be cooled and condensed, and the heat exchanger circularly inputs condensed water through a communicated cooling tower;
(3) conveying the condensed oil-water to a gas-water separation tank 5, vacuumizing the gas-water separation tank 5 by a second vacuum pump 6, volatilizing gas from the condensed oil-water under the condition of negative pressure, and conveying the volatilized gas to a spray tower through the second vacuum pump 6 for spraying treatment; the liquid in the gas-water separation tank 5 is output to a liquid storage tank 10 through a first water pump 8 and stands still.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The oil-water removing device for the oil-water-containing material is characterized by comprising a roasting furnace, a first vacuum pump, a cooling unit, a gas-water separation tank, a second vacuum pump and a spray tower which are sequentially communicated through pipelines; the bottom of the gas-water separation tank is communicated with a first water pump, and the second vacuum pump is communicated with a top pipeline of the gas-water separation tank.
2. The deoiling water device of claim 1, wherein the cooling unit comprises a heat exchanger and a cooling tower, the heat exchanger is provided with a refrigerant inlet, a refrigerant outlet, a heat medium inlet and a heat medium outlet, the heat medium inlet is communicated with the first vacuum pump pipeline, and the heat medium outlet is communicated with the gas-water separation tank pipeline.
3. The deoiling water device of claim 2, wherein the refrigerant inlet and the refrigerant outlet of the heat exchanger are communicated with the cooling tower circulation pipeline.
4. The oil and water removing device according to claim 2, further comprising a control unit, wherein the roasting furnace is provided with a furnace chamber and a furnace chamber heater, the furnace chamber is communicated with the first vacuum pump pipeline, a first temperature sensor and an air pressure sensor are arranged in the furnace chamber, the control unit is electrically connected with the first temperature sensor, the air pressure sensor, the furnace chamber heater and the first vacuum pump respectively, the control unit controls the operation of the furnace chamber heater according to a signal fed back by the first temperature sensor, and the control unit controls the operation of the first vacuum pump according to a signal fed back by the air pressure sensor.
5. The deoiling water device of claim 4, wherein the cooling tower is provided with a refrigeration mechanism, a second circulating water pump is communicated between the cooling tower and the refrigerant inlet of the heat exchanger, a second temperature sensor is arranged at the refrigerant inlet of the heat exchanger, the control unit is electrically connected with the second temperature sensor, the refrigeration mechanism and the second circulating water pump respectively, and the control unit controls the refrigeration mechanism and the second circulating water pump to operate according to a signal fed back by the second temperature sensor.
6. The oil and water removing device as claimed in claim 4, wherein a first liquid level meter is disposed in the gas-water separation tank, the control unit is electrically connected to the first liquid level meter and a first water pump, respectively, the control unit controls the first water pump to operate according to a signal fed back by the first liquid level meter, and the first water pump is a diaphragm pump.
7. The deoiling water device of claim 4, characterized in that the spray tower is provided with a sprayer and a spray liquid storage tank, the sprayer is communicated with the spray liquid storage tank through a pipeline, the spray liquid storage tank is provided with a second liquid level meter and a spray liquid adding mechanism, the control unit is electrically connected with the second liquid level meter and the spray liquid adding mechanism respectively, and the control unit controls the spray liquid adding mechanism to operate according to a signal fed back by the second liquid level meter.
8. The deoiling water device of claim 1, wherein the roaster is provided with an explosion-proof mechanism, the explosion-proof mechanism is an explosion-proof membrane, and the deoiling water device further comprises a liquid storage tank, and the liquid storage tank is communicated with the first water pump.
9. A method for de-oiling oily water materials, characterized in that the method applies the de-oiling device as defined in any one of claims 1-8, and the de-oiling method comprises the following steps:
(1) heating the oil-water-containing material under the condition of negative air pressure to gasify oil and water in the oil-water material;
(2) cooling the gasified oil-water and condensing;
(3) and conveying gas volatilized from the condensed oil-water under the negative pressure condition to a spray tower for spraying treatment.
10. The method of deoiling water of claim 9, characterized in that it comprises the following steps:
(1) heating the oil-water-containing material in a roasting furnace, and vacuumizing the roasting furnace through a first vacuum pump to form a negative pressure condition so as to gasify oil and water in the oil-water material;
(2) the gasified oil-water is conveyed to a cooling unit through a first vacuum pump to be cooled and condensed;
(3) conveying the condensed oil-water to a gas-water separation tank, vacuumizing the gas-water separation tank by a second vacuum pump, volatilizing gas from the condensed oil-water under the condition of negative pressure, and conveying the volatilized gas to a spray tower through the second vacuum pump for spraying treatment; and the liquid in the gas-water separation tank is output by a first water pump and then stands.
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| US20150265942A1 (en) * | 2012-11-06 | 2015-09-24 | Polaris S.R.L. | Device and process for removing volatile organic and inorganic compounds from polluted waters |
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| CN209500851U (en) * | 2018-12-27 | 2019-10-18 | 麻城市中优顺建材科技有限公司 | A kind of cracking tail gas recovery and processing system |
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2020
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| US5458862A (en) * | 1992-03-13 | 1995-10-17 | Rieter Automatik Gmbh | Process for purifying exhaust gases, especially from vacuum pyrolysis installations |
| CN201221899Y (en) * | 2008-04-14 | 2009-04-15 | 吴国存 | Oil product cracking evaporation energy-saving cool-down condensing device |
| US20150265942A1 (en) * | 2012-11-06 | 2015-09-24 | Polaris S.R.L. | Device and process for removing volatile organic and inorganic compounds from polluted waters |
| CN107362660A (en) * | 2017-08-31 | 2017-11-21 | 杭州富阳凯尔化工有限公司 | Produce the exhaust treatment system of styrene-butadiene latex |
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