CN212025143U - Contain Cu industrial sludge danger useless resourceful treatment system - Google Patents
Contain Cu industrial sludge danger useless resourceful treatment system Download PDFInfo
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- CN212025143U CN212025143U CN202020503992.0U CN202020503992U CN212025143U CN 212025143 U CN212025143 U CN 212025143U CN 202020503992 U CN202020503992 U CN 202020503992U CN 212025143 U CN212025143 U CN 212025143U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The utility model relates to a contain useless resourceful processing system of Cu industrial sludge danger, including batching room, granulator, smelting furnace, exhaust-heat boiler and flue gas processing system. Through reasonable proportioning of furnace entering components, Cu components in the sludge are recovered to the maximum degree, and meanwhile, through reference of a mature purification process of hazardous waste incineration flue gas, through reasonable process optimization, flue gas generated by a high-temperature molten pool is purified, and the emission standard requirement is met and is discharged after reaching the standard.
Description
Technical Field
The utility model relates to an environmental protection field, concretely relates to contain Cu industrial sludge danger waste recycling processing system.
Background
China is a world manufacturing industry large country, the quantity of industrial hazardous wastes generated every year is huge, the industrial hazardous wastes generated are continuously increased along with the continuous development of national industry, some hazardous wastes which cannot be treated in an incineration mode are like metal-containing substances, the main treatment mode at present is to directly send the hazardous wastes into a landfill site for landfill treatment after stabilization treatment, a large amount of land is occupied, the risk of secondary soil pollution exists, and some valuable metals cause great resource waste after landfill treatment.
Taking the hazardous waste of the process sludge of codes such as HW22, HW46, HW48 and the like as an example, the hazardous waste contains valuable metal substances Cu, and the hazardous waste of secondary pollution of soil is caused when the hazardous waste is treated in a landfill.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the Cu-containing industrial sludge hazardous waste recycling treatment system is provided to solve the problem that resources are greatly wasted in the conventional copper-containing sludge treatment.
The utility model provides a technical scheme that its technical problem adopted is:
a Cu-containing industrial sludge hazardous waste recycling treatment system comprises
A batching room; is suitable for proportioning the Cu-containing industrial sludge;
a granulator; is suitable for granulating the proportioned industrial sludge containing Cu;
the smelting furnace is suitable for smelting the industrial sludge containing Cu;
the waste heat boiler is suitable for cooling the high-temperature flue gas discharged by the smelting furnace, and recovering heat energy in the high-temperature flue gas to generate saturated steam;
the flue gas treatment system is suitable for purifying the flue gas discharged by the waste heat boiler.
Further, the flue gas treatment system comprises a quench tower, a dry reactor, a bag-type dust remover, a wet desulphurization washing tower, a flue gas heat exchanger, a flue gas heater, a flue gas standby heater and an SCR reactor;
quench tower and dry process reactor pipeline intercommunication, dry process reactor and sack cleaner pipeline intercommunication, sack cleaner and wet flue gas desulfurization scrubbing tower intercommunication, wet flue gas desulfurization scrubbing tower and gas heater's lumen intercommunication, gas heater's lumen and flue gas backup heater's lumen intercommunication, flue gas backup heater's lumen and SCR reactor pipeline intercommunication, SCR reactor and gas heater's shell cavity pipeline intercommunication, gas heater's shell cavity is through draught fan and chimney intercommunication.
Further, the dry reactor is connected with an activated carbon injection system and a slaked lime injection system.
On the other hand, the Cu-containing industrial sludge hazardous waste recycling treatment method adopting the Cu-containing industrial sludge hazardous waste recycling treatment system comprises the following steps:
step S01, batching the industrial sludge containing Cu in a batching room, and then granulating in a granulator to make the industrial sludge containing Cu become granules;
step S02, adding the granular Cu-containing industrial sludge into a smelting furnace, adding a slagging agent and a reducing agent, and entering the smelting furnace; matte and black copper produced by smelting are used as products; water-quenched slag formed by water cooling of the furnace slag is used as a building material;
step S03, discharging high-temperature flue gas generated by smelting into a waste heat boiler to reduce the temperature of the flue gas, and simultaneously spraying urea into the boiler to carry out SNCR denitration;
step S04, discharging the flue gas into a quenching tower, and quenching the flue gas in 1S to below 200 ℃ so as to avoid the regeneration of dioxin;
step S05, the flue gas enters a dry reactor after being quenched, an activated carbon injection system injects activated carbon into the dry reactor, and a slaked lime injection system injects slaked lime into the dry reactor to perform dry deacidification on the flue gas;
step S06, dedusting the flue gas deacidified by the dry method by a bag-type dust remover, and then feeding the flue gas into a wet desulfurization washing tower to perform wet desulfurization on the flue gas;
step S07, the flue gas after wet desulphurization sequentially passes through a flue gas heat exchanger, a flue gas heater and a flue gas standby heater to heat the flue gas, and the flue gas after heating enters an SCR reactor to treat nitrogen oxides in the flue gas;
and the flue gas is discharged after heat exchange with the flue gas heat exchanger after nitrogen oxides are removed.
Further, the smoke dust collected from the waste heat boiler and the quenching tower returns to the batching room for reuse.
The utility model has the advantages that:
the utility model provides a useless resourceful processing system of Cu industrial sludge danger and processing method through the reasonable ratio of going into the stove composition for Cu component obtains the recovery of maximum in the mud, burns the ripe purification technology of flue gas through reference the danger useless simultaneously, through reasonable process optimization, makes the flue gas that the high temperature molten bath produced purify, and satisfies emission standard and require discharge to reach standard:
the flue gas passes through the waste heat boiler to recover heat in the flue gas, and the energy-saving effect is good. And the generation of dioxin in the flue gas is avoided through the quenching tower. The NOx in the flue gas can be effectively removed through the SNCR and low-temperature SCR process, and the acid gas and the like in the flue gas can be effectively removed through the wet washing process. Through reasonable process combination, the flue gas can be effectively purified.
The utility model discloses a process automation degree is higher, and the system is according to the parameter of setting for, the operational parameter of system automatic adjustment system equipment in actual operation in-process to reach the best operation effect.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a diagram of the Cu-containing industrial sludge hazardous waste recycling system of the present invention.
Detailed Description
The invention will now be further described with reference to specific embodiments. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
Example one
As shown in figure 1, a Cu-containing industrial sludge hazardous waste recycling treatment system comprises a batching room, a granulator, a smelting furnace, a waste heat boiler and a flue gas treatment system.
Specifically, in this embodiment, the flue gas treatment system includes a quench tower, a dry reactor, a bag-type dust collector, a wet desulfurization scrubber, a flue gas heat exchanger, a flue gas heater, a flue gas backup heater, and an SCR reactor;
quench tower and dry process reactor pipeline intercommunication, dry process reactor and sack cleaner pipeline intercommunication, sack cleaner and wet flue gas desulfurization scrubbing tower intercommunication, wet flue gas desulfurization scrubbing tower and gas heater's lumen intercommunication, gas heater's lumen and flue gas backup heater's lumen intercommunication, flue gas backup heater's lumen and SCR reactor pipeline intercommunication, SCR reactor and gas heater's shell cavity pipeline intercommunication, gas heater's shell cavity is through draught fan and chimney intercommunication.
In this embodiment, the dry reactor is connected to an activated carbon injection system and a slaked lime injection system.
The active carbon injection system is a storage bin for storing active carbon and a feeder, and the active carbon is fed into the dry-process reactor through the feeder.
The slaked lime injection system is a storage bin for storing slaked lime and a feeder, and the slaked lime is fed into the dry reactor through the feeder.
Mixing and batching the industrial sludge containing Cu in a batching room, granulating the sludge by a granulator, adding the sludge granules together with quartz sand, a reducing agent and fuel coke into a smelting furnace for high-temperature smelting, keeping the furnace temperature at 1300 ℃, blowing 55% of oxygen-enriched air to generate copper matte and black copper, generating high-temperature flue gas, and feeding the high-temperature flue gas into a waste heat boiler, wherein water-quenched slag formed by water cooling of furnace slag is used as a building material;
the waste heat boiler can cool the flue gas, and simultaneously sprays urea into the boiler to carry out SNCR denitration;
cooling the quenching tower by spraying process water, and quenching the flue gas to below 200 ℃ within 1s so as to avoid the regeneration of dioxin;
the dry-method reactor performs dry-method deacidification on the flue gas;
the bag-type dust collector is used for carrying out dust removal treatment on the flue gas;
the wet desulphurization washing tower performs wet deacidification on the flue gas, so that the temperature of the flue gas is reduced to about 70 ℃; specifically, NaOH solution was used for spraying.
The flue gas heat exchanger, the flue gas heater and the flue gas backup heater are used for heating the flue gas after wet deacidification, the flue gas backup heater is used for ensuring that the temperature entering the SCR reactor is about 195 ℃, so that the use requirement of a low-temperature SCR denitration catalyst in the SCR reactor is met, NOx in the flue gas is further deacidified, the flue gas at 190 ℃ after SCR denitration reaction is used as a heat source, and the flue gas enters the flue gas heat exchanger and then is sent to a chimney through an induced draft fan to reach the standard for emission.
The heat of the flue gas heat exchanger is derived from flue gas after the denitration of the SCR reactor;
the heat of the flue gas heater is heated by saturated steam;
the flue gas backup heater heat is derived from natural gas heating.
Example two
A Cu-containing industrial sludge hazardous waste recycling treatment method adopts the Cu-containing industrial sludge hazardous waste recycling treatment system in the first embodiment, and comprises the following steps:
step S01, batching the industrial sludge containing Cu in a batching room, controlling the humidity of the sludge to be 35%, and then granulating in a granulator to enable the industrial sludge containing Cu to become granules;
step S02, adding the granular Cu-containing industrial sludge into a smelting furnace, adding a slagging agent and a reducing agent, and entering the smelting furnace; the temperature in the smelting furnace is 1300 ℃, and 55% of oxygen-enriched air is blown in at the same time;
matte and black copper produced by smelting are used as products;
water-quenched slag formed by water cooling of the furnace slag is used as a building material;
step S03, discharging high-temperature flue gas generated by smelting into a waste heat boiler, generating saturated steam, reducing the temperature of the flue gas to about 550 ℃, and simultaneously spraying urea into the boiler to carry out SNCR denitration;
step S04, discharging the flue gas into a quenching tower, and quenching the flue gas in 1S to below 200 ℃ so as to avoid the regeneration of dioxin;
step S05, the flue gas enters a dry reactor after being quenched, an activated carbon injection system injects activated carbon into the dry reactor, and a slaked lime injection system injects slaked lime into the dry reactor to perform dry deacidification on the flue gas;
step S06, dedusting the flue gas deacidified by the dry method by a bag-type dust remover, and then feeding the flue gas into a wet desulfurization washing tower to perform wet desulfurization on the flue gas; the temperature of the flue gas after wet desulphurization is 70 ℃;
step S07, the flue gas after wet desulphurization sequentially passes through a flue gas heat exchanger, a flue gas heater and a flue gas standby heater to heat the flue gas to about 195, and the flue gas after heating enters an SCR reactor to treat nitrogen oxides in the flue gas;
and the flue gas is discharged after heat exchange with the flue gas heat exchanger after nitrogen oxides are removed.
Specifically, in this embodiment, the collected soot from the waste heat boiler and the quench tower is returned to the batching room for reuse.
The utility model provides a useless resourceful processing system of Cu industrial sludge danger and processing method through the reasonable ratio of going into stove composition for Cu component obtains the recovery of maximum in the mud, burns the ripe purification technology of flue gas through consulting the danger useless simultaneously, through reasonable process optimization, makes the flue gas that the high temperature molten bath produced purify, and satisfies emission standard and require discharge to reach standard.
The flue gas passes through the waste heat boiler to recover heat in the flue gas, and the energy-saving effect is good. And the generation of dioxin in the flue gas is avoided through the quenching tower. The NOx in the flue gas can be effectively removed through the SNCR and low-temperature SCR process, and the acid gas and the like in the flue gas can be effectively removed through the wet washing process. Through reasonable process combination, the flue gas can be effectively purified.
The utility model discloses a process automation degree is higher, and the system is according to the parameter of setting for, the operational parameter of system automatic adjustment system equipment in actual operation in-process to reach the best operation effect.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. A Cu-containing industrial sludge hazardous waste recycling treatment system is characterized by comprising
A batching room; is suitable for proportioning the Cu-containing industrial sludge;
a granulator; is suitable for granulating the proportioned industrial sludge containing Cu;
the smelting furnace is suitable for smelting the industrial sludge containing Cu;
the waste heat boiler is suitable for cooling the high-temperature flue gas discharged by the smelting furnace, and recovering heat energy in the high-temperature flue gas to generate saturated steam;
the flue gas treatment system is suitable for purifying the flue gas discharged by the waste heat boiler.
2. The Cu-containing industrial sludge hazardous waste recycling system as claimed in claim 1, wherein the flue gas treatment system comprises a quench tower, a dry reactor, a bag-type dust remover, a wet desulphurization washing tower, a flue gas heat exchanger, a flue gas heater, a flue gas backup heater and an SCR reactor;
quench tower and dry process reactor pipeline intercommunication, dry process reactor and sack cleaner pipeline intercommunication, sack cleaner and wet flue gas desulfurization scrubbing tower intercommunication, wet flue gas desulfurization scrubbing tower and gas heater's lumen intercommunication, gas heater's lumen and flue gas backup heater's lumen intercommunication, flue gas backup heater's lumen and SCR reactor pipeline intercommunication, SCR reactor and gas heater's shell cavity pipeline intercommunication, gas heater's shell cavity is through draught fan and chimney intercommunication.
3. The Cu-containing industrial sludge hazardous waste recycling system as claimed in claim 2,
the dry reactor is connected with an activated carbon injection system and a slaked lime injection system.
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| CN202020503992.0U CN212025143U (en) | 2020-04-08 | 2020-04-08 | Contain Cu industrial sludge danger useless resourceful treatment system |
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| CN202020503992.0U CN212025143U (en) | 2020-04-08 | 2020-04-08 | Contain Cu industrial sludge danger useless resourceful treatment system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333290A (en) * | 2020-04-08 | 2020-06-26 | 上海环境工程设计研究院有限公司 | Cu-containing industrial sludge hazardous waste recycling treatment system and treatment method thereof |
| CN117138559A (en) * | 2023-09-14 | 2023-12-01 | 江西兴南环保科技有限公司 | Flue gas recycling purification process based on copper-containing hazardous solid waste treatment |
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2020
- 2020-04-08 CN CN202020503992.0U patent/CN212025143U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333290A (en) * | 2020-04-08 | 2020-06-26 | 上海环境工程设计研究院有限公司 | Cu-containing industrial sludge hazardous waste recycling treatment system and treatment method thereof |
| CN117138559A (en) * | 2023-09-14 | 2023-12-01 | 江西兴南环保科技有限公司 | Flue gas recycling purification process based on copper-containing hazardous solid waste treatment |
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