CN219841540U - Be applied to well low concentration salt waste liquid incineration system - Google Patents
Be applied to well low concentration salt waste liquid incineration system Download PDFInfo
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- CN219841540U CN219841540U CN202321013155.XU CN202321013155U CN219841540U CN 219841540 U CN219841540 U CN 219841540U CN 202321013155 U CN202321013155 U CN 202321013155U CN 219841540 U CN219841540 U CN 219841540U
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- waste liquid
- salt
- concentrator
- liquid
- communicated
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- 239000007788 liquid Substances 0.000 title claims abstract description 84
- 239000002699 waste material Substances 0.000 title claims abstract description 63
- 150000003839 salts Chemical class 0.000 title claims abstract description 48
- 238000010791 quenching Methods 0.000 claims abstract description 38
- 230000000171 quenching effect Effects 0.000 claims abstract description 32
- 239000000428 dust Substances 0.000 claims abstract description 9
- 239000007921 spray Substances 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 10
- 239000003546 flue gas Substances 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000005406 washing Methods 0.000 abstract description 6
- 239000002918 waste heat Substances 0.000 abstract description 5
- 238000010525 oxidative degradation reaction Methods 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model provides a system for incinerating middle-low concentration salt-containing waste liquid, relates to the technical field of environmental protection treatment of salt-containing waste liquid, and solves the problems of high operation energy consumption and uneconomical operation in the prior art. It comprises the following steps: a concentrator; the liquid outlet of the concentrator is communicated with a waste liquid spray head of the incinerator; the air inlet pipe of the quenching tank is communicated with the bottom outlet of the incinerator, and the air outlet pipe of the quenching tank is communicated with the heat source inlet of the concentrator; the air inlet of the Venturi scrubber is communicated with the heat source outlet of the concentrator; the chimney is communicated with the air outlet of the Venturi scrubber. The salt-containing waste liquid with medium and low concentration is firstly concentrated and reduced by a concentrator and then sprayed into an incinerator for oxidative degradation, salt-containing flue gas generated after incineration enters a quenching tank to absorb most of molten salt, then waste heat is recovered by the concentrator, and then the waste heat is sent to a Venturi washing tower to further reduce residual salt dust, and then the waste liquid is discharged after reaching the standard in a chimney, so that the operation energy consumption of a waste liquid incineration system can be obviously reduced, and the economy of technical application is improved.
Description
Technical Field
The utility model relates to the technical field of environment-friendly treatment of salt-containing waste liquid, in particular to a system for incinerating salt-containing waste liquid with medium and low concentration.
Background
The salt-containing waste liquid is a common waste liquid in daily operation production of industrial enterprises, and comprises the following main components: salt, organic matters and water, wherein the water is taken as a main component and generally accounts for more than 90 percent. Such waste liquids need to be treated or otherwise severely pollute the environment. The waste liquid is treated by adopting the traditional water treatment technology, and the waste liquid can be degraded to purify the waste water, but the problems of long time consumption, poor effect, sludge/hazardous waste and other secondary pollution exist. In recent years, the treatment of such waste water by a waste liquid incineration method has been attracting more and more attention. The waste liquid incineration technology can oxidize and decompose the waste liquid at high temperature to degrade organic matters and toxic salts in the waste liquid into water, carbon dioxide and harmless substances, thereby achieving the effect of thorough purification and avoiding secondary pollution.
At present, the waste liquid incineration technology has good effect in the application of treating the salt-containing waste liquid, but has the defect of high operation energy consumption, which greatly limits the application range and the economy of the technology. For example, patent number CN214094519U discloses a system for incinerating waste liquid of vacuum carbonate desulfurization and OMC wet oxidation desulfurization, patent number CN206540142U discloses a device for incinerating waste liquid with high salt content and quenching flue gas, and the device is used for incinerating waste liquid with high salt content by directly spraying the waste liquid with salt content into a hearth, and when the device is applied to waste liquid with low concentration and medium concentration, the device has the problems of high operation energy consumption and uneconomical operation.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide the salt-containing waste liquid incineration system applied to the medium-low concentration salt-containing waste liquid, wherein the salt-containing waste liquid with the medium-low concentration is concentrated and reduced by the concentrator, is sprayed into the incinerator for oxidative degradation, and the generated salt-containing flue gas after incineration enters the quenching tank to absorb most of molten salt, then the waste heat is recovered by the concentrator, is sent to the Venturi scrubber to further reduce residual salt dust, is discharged after reaching the standard in a chimney, so that the operation energy consumption of the waste liquid incineration system can be obviously reduced, and the economical efficiency of technical application is improved.
The embodiment of the utility model is realized by the following technical scheme:
the utility model provides an be applied to well low concentration salt waste liquid incineration system, includes:
a concentrator for evaporating moisture in the waste liquid;
the liquid outlet of the concentrator is communicated with a liquid outlet nozzle of the incinerator;
the quenching tank is used for absorbing molten salt generated after the waste liquid is burnt, an air inlet pipe of the quenching tank is communicated with a bottom outlet of the incinerator, and an air outlet pipe of the quenching tank is communicated with a heat source inlet of the concentrator;
the venturi scrubber is used for absorbing salt dust in the gas, and an air inlet of the venturi scrubber is communicated with a heat source outlet of the concentrator;
and the chimney is used for discharging gas and is communicated with the gas outlet of the Venturi scrubber.
Preferably, a steam discharge port is arranged at the top of the concentrator, the steam discharge port is connected with a cooler, and the cooler is connected with an exhaust pump.
Preferably, the incinerator is a vertical incinerator.
Preferably, the air inlet pipe of the quenching tank extends to the position below the liquid level of the quenching liquid.
Preferably, the top of quench tank is connected with first feed liquor pipe, the bottom of quench tank is connected with first drain pipe, first drain pipe is connected with first circulating pump, first circulating pump is connected with first feed liquor pipe, first circulating pump is connected with the drain pipe.
Preferably, the top of venturi scrubber is connected with the second feed liquor pipe, the bottom of venturi scrubber is connected with the second drain pipe, the second drain pipe is connected with the second circulating pump, the second circulating pump is connected with the second feed liquor pipe, the second circulating pump is connected with the honeycomb duct with the quench pot intercommunication.
The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects:
the salt-containing waste liquid with medium and low concentration is firstly concentrated and reduced by a concentrator and then sprayed into an incinerator for oxidative degradation, salt-containing flue gas generated after incineration enters a quenching tank to absorb most of molten salt, then waste heat is recovered by the concentrator, and then the waste heat is sent to a Venturi washing tower to further reduce residual salt dust, and then the waste liquid is discharged after reaching the standard in a chimney, so that the operation energy consumption of a waste liquid incineration system can be obviously reduced, and the economy of technical application is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart provided in an embodiment of the present utility model.
Icon: 1-a concentrator; 2-an incinerator; 3-a quenching tank; a 4-venturi scrubber; 5-chimney; 6-a waste liquid conveying pump; 7-a fuel delivery pump; 8-a combustion-supporting fan; 9-a first circulation pump; 10-a second circulation pump; 11-a cooler; 12-exhaust pump.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The present utility model is described in detail below with reference to fig. 1.
Examples
The utility model provides an be applied to well low concentration salt waste liquid incineration system, includes:
a concentrator 1 for evaporating moisture in the waste liquid; the incinerator 2 is used for incinerating waste liquid, and the liquid outlet of the concentrator 1 is communicated with a waste liquid spray head of the incinerator 2; the quenching tank 3 is used for absorbing molten salt generated after the waste liquid is burnt, an air inlet pipe of the quenching tank 3 is communicated with the bottom outlet of the incinerator 2, and an air outlet pipe of the quenching tank 3 is communicated with the heat source inlet of the concentrator 1; a venturi scrubber 4 for absorbing salt dust in the gas, the air inlet of the venturi scrubber 4 being communicated with the heat source outlet of the concentrator 1; a chimney 5 for discharging gas, said chimney 5 being in communication with the air outlet of the venturi scrubber 4.
The concentrator 1 is connected with a waste liquid conveying pump 6 for conveying waste liquid to the concentrator 1; the incinerator 2 is connected with a fuel delivery pump 7 for delivering the burned fuel into the incinerator 2; the incinerator 2 is also connected with a combustion-supporting fan 8, and the combustion-supporting fan 8 supplies air to the incinerator 2 to supplement oxygen for the combustion process, so that the full combustion is ensured.
The concentrator 1 adopts high-temperature flue gas discharged from the incinerator 2 as a heat source so as to reduce energy consumption; after passing through the concentrator 1, the waste liquid significantly reduces the flow, thereby reducing the use of fuel.
When in operation, the waste liquid conveying pump 6 sends the salt-containing waste liquid with medium and low concentration into the concentrator 1, and the waste liquid is evaporated and concentrated in the concentrator 1, and the concentration ratio is generally 3-20 times. And then the concentrated waste liquid is sent into an incinerator 2 through a spray nozzle for oxidative degradation, the working temperature of the incinerator is maintained to be more than 1100 ℃, and the retention time is maintained to be more than 2 s. The salt-containing flue gas generated after incineration enters a quenching tank 3 and is in direct contact with water in the tank to reduce the temperature and absorb molten salt, and the temperature of the quenched flue gas is 200-500 ℃. The high-temperature flue gas after passing through the quenching tank 3 enters a heat source inlet of the concentrator 1, the vaporized waste liquid is heated, then the waste liquid is sent into a Venturi scrubber 4 through a heat source outlet of the concentrator 1 to be washed to remove residual smoke dust, and then the waste liquid is discharged after reaching the standard in a chimney 5.
The top of the concentrator 1 is provided with a steam discharge port, the steam discharge port is connected with a cooler 11, and the cooler 11 is connected with an exhaust pump 12. The cooler 11 can treat the evaporation liquid generated by the concentrator 1 on line, and can collect relatively pure water for reuse.
The incinerator 2 is a vertical incinerator, so that the fused salt after being conveniently incinerated can flow into the quenching tank 3 downwards along the furnace wall.
The air inlet pipe of the quenching tank 3 extends to the position below the liquid level of the quenching liquid, so that the flue gas containing molten salt can be fully contacted with the cooling liquid, and the absorption rate of the molten salt is improved.
The top of quench pot 3 is connected with first feed liquor pipe, and the bottom of quench pot 3 is connected with first drain pipe, and first drain pipe is connected with first circulating pump 9, and first circulating pump 9 is connected with first feed liquor pipe, and first circulating pump 9 is connected with the drain pipe. The first circulating pump 9 circulates the cooling water used in the quenching tank 3, so that the water utilization rate is increased, and the drain pipe with the valve discharges the water in the quenching tank 3 after circulating for a period of time and exchanges new cooling water, so that the cooling capacity of the quenching tank 3 is ensured.
The top of venturi scrubber 4 is connected with the second feed liquor pipe, and the bottom of venturi scrubber 4 is connected with the second drain pipe, and the second drain pipe is connected with second circulating pump 10, and second circulating pump 10 is connected with the second feed liquor pipe, and second circulating pump 10 is connected with the honeycomb duct with quench pot 3 intercommunication.
The venturi scrubber 4 comprises a venturi tube and a washing water tank, wherein the bottom of the venturi tube is connected with the top of the washing water tank, and the bottom of the washing water tank is connected with the second circulating pump 10 through a second liquid outlet pipe. The dust-containing flue gas is mixed with spray in the venturi tube throat, so that dust is adsorbed and falls into the washing water tank.
The second circulating pump 10 circulates the water used in the Venturi scrubber 4, so that water resources are saved; part of water is led into the quenching tank 3 through the flow guide pipe to participate in the cooling process, so that the utilization rate of water resources is further improved.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a be applied to well low concentration salt waste liquid incineration system which characterized in that includes:
a concentrator (1) for evaporating water from the waste liquid;
the incinerator (2) is used for incinerating waste liquid, and a liquid outlet of the concentrator (1) is communicated with a waste liquid spray head of the incinerator (2);
the quenching tank (3) is used for absorbing molten salt generated after waste liquid is burnt, an air inlet pipe of the quenching tank (3) is communicated with a bottom outlet of the incinerator (2), and an air outlet pipe of the quenching tank (3) is communicated with a heat source inlet of the concentrator (1);
the venturi scrubber (4) is used for absorbing salt dust in the gas, and an air inlet of the venturi scrubber (4) is communicated with a heat source outlet of the concentrator (1);
and the chimney (5) is used for discharging gas, and the chimney (5) is communicated with the air outlet of the Venturi scrubber (4).
2. The system for incinerating the salt-containing waste liquid with middle and low concentration according to claim 1, wherein a steam discharge port is arranged at the top of the concentrator (1), a cooler (11) is connected to the steam discharge port, and an exhaust pump (12) is connected to the cooler (11).
3. The system for incinerating low-and-medium-concentration salt-containing waste liquid according to claim 1, wherein the incinerator (2) is a vertical incinerator.
4. The system for incinerating the salt-containing waste liquid with the medium and low concentration according to claim 1, wherein the air inlet pipe of the quenching tank (3) extends to the position below the liquid level of the quenching liquid.
5. The system for incinerating the salt-containing waste liquid with the medium and low concentration, which is applied to the system for incinerating the salt-containing waste liquid with the medium and low concentration according to claim 1, is characterized in that a first liquid inlet pipe is connected to the top of the quenching tank (3), a first liquid outlet pipe is connected to the bottom of the quenching tank (3), a first circulating pump (9) is connected to the first liquid outlet pipe, the first circulating pump (9) is connected with the first liquid inlet pipe, and a drain pipe is connected to the first circulating pump (9).
6. The system for incinerating the salt-containing waste liquid with middle and low concentration according to claim 5, wherein the top of the venturi scrubber (4) is connected with a second liquid inlet pipe, the bottom of the venturi scrubber (4) is connected with a second liquid outlet pipe, the second liquid outlet pipe is connected with a second circulating pump (10), the second circulating pump (10) is connected with the second liquid inlet pipe, and the second circulating pump (10) is connected with a flow guiding pipe communicated with the quenching tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321013155.XU CN219841540U (en) | 2023-04-28 | 2023-04-28 | Be applied to well low concentration salt waste liquid incineration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321013155.XU CN219841540U (en) | 2023-04-28 | 2023-04-28 | Be applied to well low concentration salt waste liquid incineration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219841540U true CN219841540U (en) | 2023-10-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321013155.XU Active CN219841540U (en) | 2023-04-28 | 2023-04-28 | Be applied to well low concentration salt waste liquid incineration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219841540U (en) |
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2023
- 2023-04-28 CN CN202321013155.XU patent/CN219841540U/en active Active
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