CN210505647U - Combined device for treating salt-containing organic waste liquid - Google Patents
Combined device for treating salt-containing organic waste liquid Download PDFInfo
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- CN210505647U CN210505647U CN201922278739.XU CN201922278739U CN210505647U CN 210505647 U CN210505647 U CN 210505647U CN 201922278739 U CN201922278739 U CN 201922278739U CN 210505647 U CN210505647 U CN 210505647U
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Abstract
The utility model discloses a combined device for treating salt-containing organic waste liquid, which is characterized by comprising an MVR evaporative crystallization device, a high-temperature melting furnace and a recovery device; the high-temperature melting furnace is provided with a molten salt outlet and a burner; the MVR evaporation crystallization device is connected with the high-temperature melting furnace through a feeding system; the recovery device is connected with the high-temperature melting furnace. The combined device firstly evaporates and crystallizes the salt-containing organic waste liquid into salt-containing organic waste residues and then burns the salt-containing organic waste residues, so that the consumption of auxiliary fuel is reduced, the removal rate of the organic waste is high, the energy is recycled, and the treatment efficiency is improved.
Description
Technical Field
The utility model relates to a useless environmental protection technical field of danger, concretely relates to contain integrated equipment of salt organic waste liquid treatment.
Background
In recent years, the rapid development of chemical industry, pharmacy, papermaking and other industries generates a large amount of salt-containing waste liquid, the discharge of the salt-containing waste liquid brings serious environmental pollution, and especially, the industrial salt-containing organic waste liquid not only contains high-concentration salt, but also contains a large amount of toxic and difficultly-degradable organic matters, so that the organic waste liquid has great harm to the environment. The salt-containing organic waste liquid which is not fully treated poses serious threat to the environment, and meanwhile, the salt-containing organic waste liquid is also a concentrated resource from which inorganic salt can be recovered.
Common treatment methods for the salt-containing organic waste liquid include a physical method, a biological method, an advanced oxidation method, a wet oxidation method, an incineration method and the like. When the components in the salt-containing organic waste liquid are very complex and difficult to biodegrade, the pollution can not be controlled by a physical method or a biological method. The advanced oxidation method is not economical for treating the salt-containing organic waste liquid with high concentration, because the consumption of the oxidant is increased along with the increase of the concentration of the pollutants. The incineration method is an effective treatment method of organic waste liquid containing salt at high concentration, organic matters are decomposed into nontoxic and harmless micromolecular substances at high temperature, and meanwhile, heat generated by incineration can be used for heat recovery or power generation. Therefore, the incineration method is a treatment technology which can really realize reduction, harmlessness and recycling of the salt-containing organic waste liquid. However, since the organic waste liquid containing salt has a large water content and requires a high heat for direct incineration, direct treatment of the waste liquid by the incineration method requires a high combustion temperature, a large amount of auxiliary fuel is required, and the salt solution has a high corrosion to equipment at a high temperature.
SUMMERY OF THE UTILITY MODEL
In view of the above problem, the utility model provides a combination unit that contains salt organic waste liquid and handle jointly forms the combination unit that contains salt organic waste liquid and handle to evaporation crystallization device, high temperature melting furnace and the recovery unit that has utilized mechanical type vapor recompression technique (MVR), and this combination unit makes discarded steam obtain abundant utilization, retrieves latent heat, and the increasing of thermal efficiency makes the organic waste liquid evaporation crystallization of containing salt form salt organic waste residue and burns again, reduces the consumption of auxiliary fuel; the combined device burns the organic waste residues containing salt and recovers the solid salt, and the organic waste removal rate is high and the corrosion to equipment is weak.
The utility model adopts the technical scheme that: a combined device for treating salt-containing organic waste liquid comprises an MVR evaporation crystallization device, a high-temperature melting furnace and a recovery device; the high-temperature melting furnace is provided with a molten salt outlet and a burner; the MVR evaporation crystallization device is connected with the high-temperature melting furnace through a feeding system; the recovery device is connected with the high-temperature melting furnace.
Preferably, the recovery apparatus is provided with a transition chute, a two roll cold mill and a cooling mill.
Preferably, the recovery device is also provided with a storage bin.
Preferably, the feeding and conveying system comprises a solid salt residue material pit and a bucket elevator.
Preferably, the solid salt slag material pit is provided with a matched travelling crane.
Preferably, the MVR evaporative crystallization device is also provided with a water treatment system.
Preferably, the MVR evaporative crystallization device comprises a waste liquid preheater, a secondary heat exchanger, an evaporation chamber, a compressor and a circulating pump.
Preferably, the combined device for treating the salt-containing organic waste liquid further comprises a heat storage device, and the heat storage device is connected with the high-temperature melting furnace.
Preferably, the heat storage device is connected with a blower and a flue gas purification system.
The beneficial effects of the above technical scheme are that:
(1) combine MVR evaporation crystallization device, high temperature melting furnace and recovery unit to form the aggregate unit that contains salt organic waste liquid and handle, realize the incineration disposal that contains salt organic waste liquid and the recovery of solid salt.
(2) The combined device makes full use of waste steam, recovers latent heat, improves heat efficiency, enables the salt-containing organic waste liquid to be evaporated and crystallized into salt-containing organic waste residue and then incinerated, and reduces the consumption of auxiliary fuel.
(3) The combined device has high organic waste removal rate, the waste residue burning removal rate is 99.9 percent by mass, and the combustion efficiency is 99 percent by mass; the thermal ignition loss rate of the incineration melting product is less than or equal to 3 percent by mass.
(4) The high-temperature melting furnace in the combined device directly burns the salt-containing organic waste residues, reduces the corrosivity of salt to the device, and has no mechanical moving part in the furnace and long service life of the device.
(5) The combined device recovers heat in the high-temperature flue gas, recycles energy and improves treatment efficiency.
Drawings
FIG. 1 is a schematic diagram of a combined apparatus for treating organic waste liquid containing salt.
Among them are: 1-a waste liquid preheater, 2-a secondary heat exchanger, 3-an evaporation chamber, 4-a compressor, 5-a circulating pump, 6-a high-temperature melting furnace, 7-a heat storage device, 8-a transition chute, 9-a double-roller cold rolling mill, 10-a cooling grinder, 11-a bucket elevator, 12-a solid salt slag material pit, 13-a water treatment system, 14-a storage bin and 15-a blower.
Detailed Description
The present invention is further described in the following with reference to specific embodiments, and it should be noted that, for those skilled in the art, a plurality of modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as belonging to the protection scope of the present invention.
Example 1
As shown in fig. 1, the utility model provides a combination unit for treating organic waste liquid containing salt, which comprises an MVR evaporative crystallization device, a high-temperature melting furnace 6 and a recovery device; the high-temperature melting furnace 6 is provided with a molten salt discharge port and a burner; the MVR evaporation crystallization device is connected with the high-temperature melting furnace 6 through a feeding system; the recovery device is connected with the high-temperature melting furnace 6.
The recovery apparatus is provided with a transition chute 8, a two-roll cold mill 9 and a cooling mill 10.
The feeding and conveying system comprises a solid salt residue material pit 12 and a bucket elevator 11.
MVR evaporation crystallization device includes waste liquid preheater 1, secondary heat exchanger 2, evaporating chamber 3, compressor 4 and circulating pump 5.
The salt-containing organic waste liquid enters a waste liquid preheater 1 for preheating, enters an evaporation chamber 3 to generate secondary steam, the enthalpy value of the secondary steam compressed by a compressor 4 is increased, the secondary steam enters a secondary heat exchanger 2 for heat exchange with the waste liquid, the waste liquid is circulated for secondary heat exchange under the action of a circulating pump 5, and the salt-containing organic waste liquid is evaporated and crystallized into salt-containing organic waste residues; the salt-containing organic waste residue enters a solid salt residue material pit 12, and the solid waste residue is transferred into a high-temperature melting furnace 6 through a travelling crane matched with the solid salt residue material pit and a bucket elevator 11; introducing combustible gas into the high-temperature melting furnace 6, wherein the combustible gas is combusted in a combustor to ensure that the temperature in the high-temperature melting furnace 6 is more than 1100 ℃, organic waste residues are decomposed and combusted in the high-temperature melting furnace 6, and inorganic salt substances are converted into a molten state; the salt in the molten state enters a transition chute 8 through a molten salt discharge port, and the solid salt in the transition chute 8 is crushed into powder by a double-roller cold rolling mill 9 and a cooling grinding mill 10 and then recycled; the temperature of the flue gas in the high-temperature melting furnace 6 is more than or equal to 1100 ℃, and the residence time of the flue gas is more than or equal to 2 s.
Combining the MVR evaporation crystallization device, the high-temperature melting furnace and the recovery device to form a combined device, so as to realize incineration treatment of the organic waste liquid containing salt and recovery of solid salt; the MVR evaporation crystallization device in the combined device makes full use of waste steam, recovers latent heat, improves the heat efficiency, makes salt-containing organic waste liquid evaporated and crystallized into salt-containing organic waste residue and then incinerates the salt-containing organic waste residue, and reduces the consumption of auxiliary fuel; the high-temperature melting furnace ensures that the salt-containing organic waste residue has enough melting space and smoke retention time, the removal rate of the organic waste is high, the burning removal rate reaches 99.9 percent by mass, the burning efficiency reaches 99 percent by mass, and the thermal burning reduction rate of the burning melting product is less than or equal to 3 percent by mass; the high-temperature melting furnace has good durability, no mechanical moving parts in the furnace and long service life.
Example 2
As shown in fig. 1, the utility model provides a combination unit for treating organic waste liquid containing salt, which comprises an MVR evaporative crystallization device, a high-temperature melting furnace 6 and a recovery device; the high-temperature melting furnace 6 is provided with a molten salt discharge port and a burner; the MVR evaporation crystallization device is connected with the high-temperature melting furnace 6 through a feeding system; the recovery device is connected with the high-temperature melting furnace 6.
The recovery apparatus is provided with a transition chute 8, a two-roll cold mill 9 and a cooling mill 10.
The feeding and conveying system comprises a solid salt residue material pit 12 and a bucket elevator 11.
MVR evaporation crystallization device includes waste liquid preheater 1, secondary heat exchanger 2, evaporating chamber 3, compressor 4 and circulating pump 5.
The combined device for treating the salt-containing organic waste liquid further comprises a heat storage device 7, and the heat storage device 7 is connected with the high-temperature melting furnace 6.
The heat storage device 7 is connected with a blower 15 and a flue gas purification system.
The salt-containing organic waste liquid enters a waste liquid preheater 1 for preheating, enters an evaporation chamber 3 for generating secondary steam, the enthalpy value of the secondary steam compressed by a compressor 4 is increased, the secondary steam enters a secondary heat exchanger 2 for heat exchange with the waste liquid, the waste liquid is circulated for secondary heat exchange under the action of a circulating pump 5, and the salt-containing organic waste liquid is evaporated and concentrated into salt-containing organic waste residues; the salt-containing organic waste residue enters a solid salt residue material pit 12, and the solid waste residue is transferred into a high-temperature melting furnace 6 through a travelling crane matched with the solid salt residue material pit and a bucket elevator 11; introducing combustible gas into the high-temperature melting furnace 6, wherein the combustible gas is combusted in a combustor to ensure that the temperature in the high-temperature melting furnace 6 is more than 1100 ℃, organic waste residues are decomposed and combusted in the high-temperature melting furnace 6, and inorganic salt substances are converted into a molten state; the salt in the molten state enters a transition chute 8 through a molten salt discharge port, and the solid salt in the transition chute 8 is crushed into powder by a double-roller cold rolling mill 9 and a cooling grinding mill 10 and then recycled; the temperature of the flue gas in the high-temperature melting furnace 6 is more than or equal to 1100 ℃, the residence time of the flue gas is more than or equal to 2s, and the flue gas enters the heat storage device 7 for waste heat recovery and then is discharged after being treated by the flue gas purification device; the blower 15 sends air to the heat storage device 7, raises the temperature of the air, and sends the air to the high-temperature melting furnace 6, so that the temperature of the air entering the high-temperature melting furnace 6 is raised, and the heat is recycled.
The MVR evaporation crystallization device, the high-temperature melting furnace, the heat storage device and the recovery device are combined to form a combined device, so that the incineration treatment of the organic waste liquid containing salt and the recovery of solid salt are realized, the heat in the high-temperature flue gas is recovered through the heat storage device, the energy is recycled, and the treatment efficiency is improved; and (4) taking secondary pollution prevention measures to treat harmful substances generated during combustion.
Claims (8)
1. The combined device for treating the salt-containing organic waste liquid is characterized by comprising an MVR evaporation crystallization device, a high-temperature melting furnace (6) and a recovery device; the high-temperature melting furnace (6) is provided with a molten salt discharge port and a burner; the MVR evaporation crystallization device is connected with the high-temperature melting furnace (6) through a feeding system; the recovery device is connected with the high-temperature melting furnace (6).
2. A combined apparatus for treatment of organic waste liquid containing salt according to claim 1, characterized in that the recovery apparatus is provided with a transition chute (8), a two-roll cold mill (9) and a cooling mill (10).
3. A combined salt-containing organic waste liquid treatment plant according to claim 2, characterized in that the recovery unit is further provided with a storage silo (14).
4. A combined apparatus for treating organic waste liquid containing salt according to claim 1, wherein the feed conveying system comprises a solid salt residue pit (12) and a bucket elevator (11).
5. A combined device for treating salt-containing organic waste liquid according to claim 1, wherein the MVR evaporative crystallization device is further provided with a water treatment system (13).
6. The integrated device for treating salt-containing organic waste liquid according to claim 1, wherein the MVR evaporative crystallization device comprises a waste liquid preheater (1), a secondary heat exchanger (2), an evaporation chamber (3), a compressor (4) and a circulating pump (5).
7. An integrated salt-containing organic waste liquid treatment plant according to any one of claims 1 to 6, characterized by further comprising a heat storage device (7), wherein the heat storage device (7) is connected with the high-temperature melting furnace (6).
8. The integrated device for treating salt-containing organic waste liquid according to claim 7, wherein the heat storage device (7) is connected with a blower (15) and a flue gas purification system.
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| CN201922278739.XU CN210505647U (en) | 2019-12-17 | 2019-12-17 | Combined device for treating salt-containing organic waste liquid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628767A (en) * | 2020-12-08 | 2021-04-09 | 浙江吉成新材股份有限公司 | high-COD concentrated solution closed treatment system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628767A (en) * | 2020-12-08 | 2021-04-09 | 浙江吉成新材股份有限公司 | high-COD concentrated solution closed treatment system and method |
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Effective date of registration: 20210120 Address after: 100081 2803-1, 24 / F, building 1, courtyard B 12, Zhongguancun South Street, Haidian District, Beijing Patentee after: ECOTEC ECO-TEC ASIA (BEIJING) Co.,Ltd. Patentee after: JIANGSU AEROSPACE HEWLETT ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 100022 1301, yuanjialong building, No.1, South East Third Ring Road, Chaoyang District, Beijing Patentee before: ECOTEC ECO-TEC ASIA (BEIJING) Co.,Ltd. |