CN207222538U - A kind of industrial waste salt processing system - Google Patents
A kind of industrial waste salt processing system Download PDFInfo
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- CN207222538U CN207222538U CN201720679947.9U CN201720679947U CN207222538U CN 207222538 U CN207222538 U CN 207222538U CN 201720679947 U CN201720679947 U CN 201720679947U CN 207222538 U CN207222538 U CN 207222538U
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- abraum salt
- abraum
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/20—Waste processing or separation
Abstract
The utility model belongs to environmental protection technical field; more particularly to a kind of industrial waste salt system, including abraum salt pretreatment unit, abraum salt thermal analysis apparatus, high-temperature dust removal unit, oil gas condensation unit, gas purification units, fluid purification recovery unit, burner, evaporative crystallization unit, salt slag waste heat recovery unit.The utility model harmless treatment is thorough, resource recovery is high, processing energy consumption is low, and the abraum salt rate of recovery after system processing is up to 80%.
Description
Technical field
The utility model belongs to environmental protection technical field, more particularly to a kind of industrial waste salt processing system.
Background technology
Industrial waste salt refers to the various waste residues discharged in industrial processes, dust and other wastes.Industrial circle has very much
There is abraum salt generation in enterprise in process of production.Such as in organic and inorganic chemical product production process, produce substantial amounts of saliferous and give up
Water, forms solid crystals after evaporation and concentration, the substantial amounts of organic or inorganic impurity of oil-containing in the crystal salt；Pesticide by-product abraum salt is
The solid waste of maximum is measured in pesticide industry, contains various poisonous and harmful substances, complicated.Simultaneously because moisture is high,
Easily caking, it is difficult to be effectively addressed and utilize.Salt is a kind of important industrial chemicals, and extremely valuable national strategy money
Source, recycles industrial waste salt as raw material of industry salt, can not only eliminate the pollution to environment, can also make full use of treasured
Expensive salt resource, by by-product recycling, realizes circular economy.
Chemical method and high temperature pyrolytic cracking (HTP) are generally used to the treatment process of industrial waste salt recycling at present.Chemical Treatment,
Process route is grown, and investment is big, and production cost is high.High-temperature calcination high temperature pyrolytic cracking (HTP), process route is short, and production cost is low, investment
Few, the inorganic salt quality of gained recrystallization is preferable, and secondary pollution is easy to control, and technical process meets environmental requirement, meets
The industry direction of the recycling of country's abraum salt and recycling at present.Existing high temperature pyrolysis treatment process mainly uses high-temperature hot-air
Directly or indirectly exchange heat with abraum salt, make organic matter in abraum salt complete to crack under the high temperature conditions, used equipment is main
There are swinging heating furnace, multi-layer discs pyrolysis furnace etc..But this treatment process efficiency is relatively low, heated with Pintsch process swinging
Exemplified by furnace technology, since burning is by the way of direct-fire burning, high-temperature tail gas temperature reaches 300 DEG C -500 DEG C, directly outer
Row, efficiency of combustion is less than 70%.In addition, indirect heat exchange process is since abraum salt and hot wind time of contact are limited, the temperature of salinity in itself
Degree and not up to preferred temperature, residual organic component content is difficult to control, higher to temperature control requirement；Direct heat transfer process has
The pyrolysis gas that the pyrolysis of machine thing produces is mixed with a large amount of flue gases, and pyrolysis gas is difficult to recycling can only together discharge with flue gas, reach
Less than the purpose of resource reclaim, secondary pollution can be also caused.Meanwhile the nothing such as existing swinging heating furnace, multi-layer discs pyrolysis furnace
Method solves abraum salt ring formation agglomeration problems at high temperature.
Utility model content
The purpose of this utility model be to provide a kind of industrial waste salt harmless treatment is thorough, resource recovery is high, processing energy
Consume low industrial waste salt processing system.
To reach above-mentioned purpose, the utility model provides a kind of industrial waste salt processing system, including abraum salt pretreatment list
Member, abraum salt thermal analysis apparatus, high-temperature dust removal unit, oil gas condensation unit, gas purification units, fluid purification recovery unit, combustion
Burner, evaporative crystallization unit, salt slag waste heat recovery unit, abraum salt pretreatment unit by pipeline and abraum salt thermal analysis apparatus into
Material mouth connects, and abraum salt thermal analysis apparatus is multistage jacket type indirectly heat reactor, and height is equipped with the top of each section of heating response device
Warm oil gas vent, end lower part are equipped with slag notch, the exhanst gas outlet of burner and the smoke inlet of abraum salt thermal analysis apparatus, evaporation
The smoke inlet of crystalline element is sequentially connected, and the fuel gas inlet of burner is connected with the gas vent of gas purification units, high
Warm dust removing units are arranged on after the oil gas vent at the top of each section of heating response device of abraum salt thermal analysis apparatus and by pipeline phase
Even, gas vent, the liquid outlet of oil gas condensation unit are connected with gas purification units, fluid purification recovery unit respectively, salt
Slag waste heat recovery unit is connected by salt slag delivery pipe with evaporative crystallization unit, and the air intake connection preheated air of burner goes out
Mouthful.
Further, abraum salt pretreatment unit include be sequentially connected feed bin, crusher, vibrating screen, weighing balance, helical feed
Machine, screw conveyor are connected with abraum salt thermal analysis apparatus.
Further, multistage jacket type indirectly heat inside reactor is equipped with the Double-helix propeller with endogenous pyrogen, promotes
Device is equipped with wear-resistant baffle plate, is equipped with high temperature flue outside multistage jacket type indirectly heat reactor, is equipped with exhaust gases passes
Hydraulic barrier, high-temperature oil gas outlet are connected by pipeline with the air inlet of high-temperature dust removal unit, slag notch and salt slag waste heat recovery
Unit is connected, and multistage jacket type indirectly heat reactor is equipped with gas inlet and exhanst gas outlet, and gas inlet is connected with burner,
Exhanst gas outlet is connected with the smoke inlet of evaporative crystallization unit.
Further, high-temperature dust removal unit arrangement two stage cyclone dust-extraction unit or gravitational dust collecting device.
Further, the condensation-water drain of fluid purification recovery unit passes through pipeline and the cold but water inlet of oil gas condensation unit
It is connected.
Compared with prior art, the beneficial effects of the utility model are：Overcome in existing abraum salt high temperature pyrolysis technology and deposit
Abraum salt residual organic component content be difficult to control, pyrolysis gas is difficult to recycle, and efficiency is relatively low, secondary pollution and abraum salt exist
The problems such as ring formation lumps under high temperature, the abraum salt rate of recovery after technique and the system processing of the utility model is up to 80%.
Brief description of the drawings
Fig. 1 is the process flow chart that a kind of industrial waste salt processing system of the utility model unifies embodiment；
Fig. 2 is the structure diagram that a kind of industrial waste salt processing system of the utility model unifies embodiment.
Figure label：
1st, feed bin, 2, crusher, 3, vibrating screen, 4, weighing balance, 5, screw conveyor, 6, abraum salt thermal analysis apparatus, 7, high
Warm dust removing units, 8, oil gas condensation unit, 9, gas purification units, 10, burner, 11, fluid purification recovery unit, 12, salt
Slag waste heat recovery unit, 13, evaporative crystallization unit.
Embodiment
The utility model is further described in detail below through specific implementation examples and in conjunction with the accompanying drawings.
Join shown in Fig. 1 to Fig. 2, present embodiments provide a kind of industrial waste salt processing system, including by feed bin 1, crusher
2nd, the abraum salt pretreatment unit that vibrating screen 3, weighing balance 4, screw conveyor 5 form, abraum salt thermal analysis apparatus 6, high-temperature dust removal list
Member 7, oil gas condensation unit 8, gas purification units 9, burner 10, fluid purification recovery unit 11, salt slag waste heat recovery unit
12nd, evaporative crystallization unit 13.Abraum salt pretreatment unit includes feed bin 1, crusher 2, vibrating screen 3, weighing balance 4, screw conveyor
5, it is connected by pipeline with 6 feed inlet of abraum salt thermal analysis apparatus, abraum salt thermal analysis apparatus 6 reacts for multistage jacket type indirectly heat
Device, chuck are imported and exported for exhaust gases passes equipped with high-temperature flue gas, and heating response device is internally provided with Double-helix propeller, is set on propeller
There is wear-resistant baffle plate, outside is equipped with high temperature flue, hydraulic barrier is equipped with passage.Each section of heating of abraum salt thermal analysis apparatus 6 is anti-
Answer and high-temperature oil gas outlet is respectively equipped with device, heating tail end reactor lower part is equipped with total slag notch, and each high-temperature oil gas outlet passes through
Pipeline is connected with the air inlet of high-temperature dust removal unit 7, and high-temperature oil gas enters oil gas condensation unit 8, slag notch and salt slag after dedusting
Waste heat recovery unit is connected 12.Cyclone dust removal or gravitational dust collection may be selected according to treating capacity in high-temperature dust removal unit 7, to ensure dedusting
Effect is at least two-stage dedusting.8 gas vent of oil gas condensation unit is connected with gas purification units 9, and liquid outlet is net with liquid
Change recovery unit 11 to be connected.The condensation-water drain that fluid purification recovery unit 11 recycles is cold by pipeline and oil gas condensation unit 8
But water inlet is connected.The air intlet of salt slag waste heat recovery unit 12 is connected with air-blaster, salt slag waste heat recovery unit
12 setting salt slag delivery pipes be connected with evaporative crystallization unit 13,12 preheated air of salt slag waste heat recovery unit outlet pass through pipeline and
10 air intake of burner is connected.10 exhanst gas outlet of burner and 6 smoke inlet of abraum salt thermal analysis apparatus, evaporative crystallization unit 13
Smoke inlet is sequentially connected, and 10 fuel gas inlet of burner is connected with the gas vent of gas purification units 9.The present embodiment carries
The industrial waste salt processing system harmless treatment of confession is thorough, resource recovery is high, processing energy consumption is low, useless after system processing
The salt rate of recovery is up to 80%.
Industrial waste salt is handled using above-mentioned industrial waste salt processing system, its treatment process includes the following steps：
(1) industrial waste salt enters feed bin, is delivered to crusher in crushing, and broken rear abraum salt is sieved through vibrating screen, and weighing balance claims
Sent after metering by screw(-type) feeder to abraum salt thermal analysis apparatus；
(2) preheated air (150-200 DEG C) and the clean gas from gas purification units burn generation in burner
High-temperature flue gas (600-800 DEG C), high-temperature flue gas (600-800 DEG C) is passed through the chuck of abraum salt thermal analysis apparatus, to abraum salt Thermal desorption
Material in device heating response device carries out indirectly heat heating, and (380-450 DEG C) of flue gas enters evaporative crystallization unit after heat exchange
Continue heat exchange and cool to less than 200 DEG C discharges；
(3) abraum salt in the multistage heating reactor of abraum salt thermal analysis apparatus is heated to 500-650 under anoxic condition
DEG C, it is dehydrated the reactions such as (100-150 DEG C), organic matter evaporation (150-380 DEG C), cracking (380-600 DEG C), the oil of generation
Gas mixture enters high-temperature dust removal unit by top duct and carries out granule dedusting, subsequently into oil gas condensation unit cooling (60-
80 DEG C), obtain fixed gas and condensate liquid after separation；
(4) fixed gas is after gas purification units purify, into burner, and from the pre- of salt slag waste heat recovery unit
Hot-air (100-200 DEG C) distribution is burnt, the heat source of the high-temperature flue gas (600-800 DEG C) of generation as abraum salt thermal analysis apparatus.
Condensate liquid obtains recirculated water and organic liquid after the processing of fluid purification recovery unit, and recirculated water is sent to oil gas condensation unit conduct
Cooling water circulation uses；
(5) the salt slag (450-600 DEG C) that pyrolysis produces in abraum salt thermal analysis apparatus and the dirt slag from high-temperature dust removal system
Enter evaporative crystallization unit after cooling down in salt slag waste heat recovery unit with air heat-exchange and further handle the pure salt of recycling.
Embodiment 1
Using above-mentioned technique and system, certain Industry Waste sodium salt is handled, the main composition of the useless sodium salt is adjacent for para-nitrotoluene
Sulfonic acid (PNTS), sodium sulphate, 4,4- dinitrostilbenes-disulfonic acid (DNS).
Referring to Fig. 2, by taking above-mentioned useless sodium salt as an example, Industry Waste sodium salt enters feed bin 1, is delivered to crusher 2 and crushes, vibration
The screening of sieve 3, weighing balance 4 are sent to the multistage of abraum salt thermal analysis apparatus 6 after weighing by screw conveyor 5 with the treating capacity of 200kg/h
It is progressively heated in the process in heating response device under anoxic condition, is successively dehydrated (100-120 DEG C), organic matter evaporation (120-350
DEG C), the reaction such as organic cracking (350-580 DEG C), the gas mixture of generation enters high-temperature dust removal unit by top duct
7 carry out granule dedusting, cool down (70 DEG C) subsequently into oil gas condensation unit 8, fixed gas and condensate liquid are obtained after separation；Fixed gas
After the purification of gas purification units 9, into burner 10, with the preheated air (150 from salt slag waste heat recovery unit 12
DEG C) distribution burning, the high-temperature flue gas (800 DEG C) of generation is passed through the chuck of abraum salt thermal analysis apparatus 6, to abraum salt thermal analysis apparatus 6
Material in heating response device carries out indirectly heat heating, and (400 DEG C) of flue gas continues to change into evaporative crystallization unit 13 after heat exchange
Heat cools to 200 DEG C of discharges.Condensate liquid obtains recirculated water and organic liquid, recirculated water after the processing of fluid purification recovery unit 11
Send to oil gas condensation unit 8 and used as cooling water circulation；Pyrolysis produces in abraum salt thermal analysis apparatus 6 salt slag (550 DEG C) and
Dirt slag from high-temperature dust removal system 7 is in salt slag waste heat recovery unit 12 with entering evaporative crystallization unit after air heat-exchange cooling
13 further handle the pure salt of recycling.Thermal decomposition product yield situation see the table below.
Table 1 is pyrolyzed yield analysis
| Solid productivity | Gas yield | Liquid phase yield |
| 71.85% | 21.15% | 7.00% |
Abraum salt is segmented heating in said system under anoxic condition, be dehydrated, organic matter evaporation, cracking etc. it is anti-
Should, the gas mixture of generation obtains fixed gas and condensate liquid after dedusting, condensation cleaning separation, and fixed gas is to be as fuel
System provides heat, and salt slag handles to obtain purification salt after waste heat recovery through evaporative crystallization.The system can overcome existing with technique
The residual organic component content of abraum salt present in abraum salt high temperature pyrolysis technology is difficult to control, and pyrolysis gas is difficult to recycle, efficiency
Relatively low, secondary pollution and abraum salt the problems such as ring formation lumps at high temperature.It is useless after technique and the system processing of the utility model
The salt rate of recovery is up to 80%.
The a series of tool for describing the feasibility embodiment only for the utility model in detail of those listed above
Body illustrates that they are simultaneously not used to limitation the scope of protection of the utility model, all to be made without departing from the utility model skill spirit
Equivalent implementations or change should be included within the scope of protection of this utility model.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The scope of type is indicated by the appended claims rather than the foregoing description, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are embraced therein.
Claims (5)
1. a kind of industrial waste salt processing system, it is characterised in that including abraum salt pretreatment unit, abraum salt thermal analysis apparatus, high temperature
Dust removing units, oil gas condensation unit, gas purification units, fluid purification recovery unit, burner, evaporative crystallization unit, salt slag
Waste heat recovery unit, the abraum salt pretreatment unit are connected by pipeline with the feed inlet of abraum salt thermal analysis apparatus, the abraum salt
Thermal analysis apparatus is multistage jacket type indirectly heat reactor, and high-temperature oil gas outlet, end are equipped with the top of each section of heating response device
End lower part is equipped with slag notch, smoke inlet, the evaporative crystallization of the exhanst gas outlet of the burner and the abraum salt thermal analysis apparatus
The smoke inlet of unit is sequentially connected, and the fuel gas inlet of the burner is connected with the gas vent of gas purification units, institute
State after the oil gas vent that high-temperature dust removal unit is arranged at the top of each section of heating response device of the abraum salt thermal analysis apparatus and lead to
Pipeline is crossed to be connected, the gas vent of the oil gas condensation unit, liquid outlet respectively with the gas purification units, fluid purification
Recovery unit is connected, and the salt slag waste heat recovery unit is connected by salt slag delivery pipe with the evaporative crystallization unit, the combustion
The air intake connection preheated air outlet of burner.
A kind of 2. industrial waste salt processing system according to claim 1, it is characterised in that the abraum salt pretreatment unit bag
The feed bin being sequentially connected, crusher, vibrating screen, weighing balance, screw conveyor are included, the screw conveyor is pyrolyzed with the abraum salt
Analysis apparatus is connected.
3. a kind of industrial waste salt processing system according to claim 1, it is characterised in that the multistage jacket type adds indirectly
Thermal reactor is internally provided with the Double-helix propeller with endogenous pyrogen, and the propeller is equipped with wear-resistant baffle plate, the multistage folder
High temperature flue is equipped with outside shell type indirectly heat reactor, hydraulic barrier, the high temperature oil are equipped with the exhaust gases passes
Gas outlet is connected by pipeline with the air inlet of the high-temperature dust removal unit, the slag notch and the salt slag waste heat recovery unit
It is connected, the multistage jacket type indirectly heat reactor is equipped with gas inlet and exhanst gas outlet, the gas inlet and the combustion
Burner is connected, and the exhanst gas outlet is connected with the smoke inlet of the evaporative crystallization unit.
A kind of 4. industrial waste salt processing system according to claim 1, it is characterised in that the high-temperature dust removal unit arrangement
Two stage cyclone dust-extraction unit or gravitational dust collecting device.
A kind of 5. industrial waste salt processing system according to claim 1, it is characterised in that the fluid purification recovery unit
Condensation-water drain be connected by the pipeline but water inlet cold with oil gas condensation unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720679947.9U CN207222538U (en) | 2017-06-13 | 2017-06-13 | A kind of industrial waste salt processing system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720679947.9U CN207222538U (en) | 2017-06-13 | 2017-06-13 | A kind of industrial waste salt processing system |
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| CN207222538U true CN207222538U (en) | 2018-04-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107185948A (en) * | 2017-06-13 | 2017-09-22 | 北京纬纶华业环保科技股份有限公司 | A kind of industrial waste salt system and method |
| CN108502903A (en) * | 2018-06-07 | 2018-09-07 | 江苏省环境科学研究院 | A kind of pre-concentration salt slag fluidized gasification detoxification system and method |
-
2017
- 2017-06-13 CN CN201720679947.9U patent/CN207222538U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107185948A (en) * | 2017-06-13 | 2017-09-22 | 北京纬纶华业环保科技股份有限公司 | A kind of industrial waste salt system and method |
| CN108502903A (en) * | 2018-06-07 | 2018-09-07 | 江苏省环境科学研究院 | A kind of pre-concentration salt slag fluidized gasification detoxification system and method |
| CN108502903B (en) * | 2018-06-07 | 2020-06-09 | 江苏省环境科学研究院 | Gasification detoxification system and method for pre-concentrated salt residue fluidized bed |
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