CN204738001U - System for mercury in useless mercury catalyst of high -efficient environmental protection recovery - Google Patents
System for mercury in useless mercury catalyst of high -efficient environmental protection recovery Download PDFInfo
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- CN204738001U CN204738001U CN201520185481.8U CN201520185481U CN204738001U CN 204738001 U CN204738001 U CN 204738001U CN 201520185481 U CN201520185481 U CN 201520185481U CN 204738001 U CN204738001 U CN 204738001U
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Abstract
The utility model discloses a system for mercury in useless mercury catalyst of high -efficient environmental protection recovery, include processing unit, dry unit, dust removal processing unit, resolution element, cooling unit, collector unit, tail gas processing unit in advance, processing unit, dry unit, resolution element, cooling unit, tail gas processing unit couple in proper order in advance, and dust removal processing unit couples in processing unit and dry unit in advance, and the collector unit couples in resolution element and cooling unit. Whole process does not have the water pollution produce to give birth to and discharge, and the utilization ratio of waste heat is also high, easy comprehensive utilization of sediment charcoal and retreatment after the processing, and the high -efficient recovery of the useless mercury catalyst mercury of realization, the environmental issue with useless mercury catalyst processing procedure is utilized again to the useless mercury catalyst resource of realization solution, obtain purer mercury simple substance from various mercury compounds, reduce corrosion of equipment nature, prevent that the caking from improving production efficiency.
Description
Technical field
The utility model relates to recovery and the smelting of metal in a kind of solid waste, particularly relates to the system that a kind of high-efficiency environment friendly reclaims mercury in useless mercury catalyst.
Background technology
Calcium carbide route is produced in polyvinyl chloride technique and is adopted mercuric chloride catalyst as catalyst
,draw off from convertor after using the certain period, be called Induction refining, due to the mercury chloride of the inside also containing 3%-5%, belong to Hazardous wastes, can not arbitrarily abandon, and mercury belongs to day by day poor resource, the processing mode of useless mercury catalyst has 3 kinds at present, be take a pyrometallurgical smelting recovery mercury wherein, mercury simple substance re-uses through process; The second is the method adopting the destructive distillation of control oxygen, and under the situation of isolated air, the mercury chloride in Induction refining is directly reclaimed in heating; The third adopts chemical process that Induction refining is become " regenerative catalyst ".Current report industrial application be front 2 kinds of methods, main stream approach adopts pyrogenic process to reclaim mercury, and the method results of industrial application of control oxygen destructive distillation has no report.
Within 2011, national PVC nd Annual Meeting concentrates Xue Zhihua " visit mercuric chloride catalyst deactivation cause, select chlorination of acetylene hydrogen dewatering process " to point out the reason of catalyst inactivation: toxic substance is to the destruction of mercury chloride; The impact of particulate in unstripped gas, blocks duct or is deposited on catalyst surface; The reductive action of excessive acetylene, acetylene is oxidized to carbon laydown, and mercury chloride is reduced into subchloride of mercury; The too high mercury chloride that makes of temperature of reaction distils, and also promotes acetylene decomposition charing simultaneously; Hydrogen reducing effect, mercury chloride is reduced into mercury by hydrogen under invert point and catalysis; Unstripped gas is containing water mitigation, and mercury chloride is dissolved in acid; In February, 2008 PVC magazine " mercuric chloride catalyst recovery in use and utilization ", point out the reason of catalyst inactivation: distillation, poisoning, carbon distribution.Illustrate in Induction refining and be not only mercury chloride, also may have the materials such as subchloride of mercury, mercury, zunsober, in order to make the follow-up disposal and utilization of being convenient to of product obtained, industrial useless mercury catalyst treatment unit major part is pyrogenic process, various mercury compound is become red precipitate, and distillation obtains purer mercury simple substance.
In the useless mercury catalyst of pyrogenic process recovery, the key point of mercury is pre-treatment and the distillation mode of useless mercury catalyst, and useless mercury catalyst pre-treatment is all adopt unslaked lime to mix with useless mercury catalyst to boil substantially, naturally dries in the shade; Distillation mode has fire coal (gas) tubulation distilling furnace, vertical type spontaneous combustion saving furnace.1st phase in 1996 " Guizhou environmental protection science and technology " Xu Yongchi: Danzhai gold mine once adopted liquid caustic soda soak at room temperature Induction refining, and effect is bad; Guizhou Mercury Mine adopts unslaked lime and Induction refining to carry out pre-treatment boiling under the condition of 150 minutes, refines mercury direct yield >98%.Jilin institute of calcium carbide factory once tested: adopt 15% liquid caustic soda normal temperature process Induction refining, dry in the shade under normal temperature; Beijing University of Technology's Study on Environmental Protection room and factory of Beijing Chemical Plant Two test for mercurous Induction refining: mention three kinds and processing mode: 1, alkali soaks heating 1 hour and leaves standstill 23 hours, then 80 degree of lower oven dry; 2, alkali normal temperature dipping 24 hours (just stirring a little during dipping) 23 hours, dries in the shade under room temperature; 3, normal temperature dipping, then 80 degree of lower oven dry, the conclusion (of pressure testing) provided is that second method mercury yield is high, but in raffinate, mercury content is also high, and concentration of lye adopts 15%.Tianjin Chemical Plant: once adopted the pretreatment with agueous Ammonia Induction refining of 10%-15%, rate of recovery 98-99%, residual mercury 0.01%, there is ammonia chloride crystal material blocking pipe in pipeline; In in October, 2008 PVC magazine " China mercuric chloride catalyst is produced and develop with a recovery technology " literary composition, the pretreated mode of mercury catalyst that proposes to give up such as Zhang Yaxiong has 10-15% alkali or 15% soda ash or milk of lime to carry out soaking or be total to heat to boil, but what they adopted is milk of lime pretreatment mode, naturally dry in the shade, distillation adopts the energy-conservation oven process of direct combustion.Current pyrogenic attack give up mercury catalyst be all adopt milk of lime carry out pre-treatment, naturally dry, pilling up time at least 10 days, what have reaches 30 days, generate calcium chloride because milk of lime and mercury chloride react, and milk of lime is excessive, adopts nature to dry mode drying, moisture can not control very low, in still-process, moisture is high, and increase equipment corrosion, calcium hydroxide easily lumps and causes material to be unable to come down, need labor cleaning, production efficiency declines.
Along with the increasingly stringent of environmental protection, the method and apparatus of environmental protection and energy saving will enjoy application, few producer is had to attempt adopting resistance furnace as distilling furnace, but due to the reason such as characteristic of material, the electric distilling furnace used is the simple resistance furnace of low capacity structure or Horizontal electric hot type distilling furnace, production intensity and efficiency low, level of automation is low.The distilling furnace that current industrial pyrogenic process uses is exactly typically coal-fired (gas) distilling furnace and vertical type spontaneous combustion saving furnace.Coal-fired (gas) distills oven process is the method that domestic Induction refining mercury recycle is maximum, the simple comparative maturity of technique, adopts coal or furnace gas to heat as fuel.Shortcoming: stirred pot is semi-open-type, heating adopts coal-fired heating or logical steam in material, coal-fired generation is polluted, the operation that spontaneous combustion is dried, exist and pollute, need larger place, and moisture can not fall lower by the mode of naturally drying, in distilling furnace, remaining unslaked lime easily lumps and causes material to be unable to come down, need manually to clear up, distilling furnace coal does fuel requirement hand firing, and energy consumption is high, and temperature controls unstable, distilling effect differs, and often occurs the phenomenon that the remaining mercury of waste residue exceeds standard.The energy-conservation oven process production technique of vertical type spontaneous combustion: useless mercury catalyst, first through Chemical Pretreatment, is stacked conglomeration and become block, after spontaneous combustion drying, be placed in " vertical type spontaneous combustion saving furnace " interior roasting, containing mercury vapour after depositing dust, condensation, enters collection mercury tank and obtains thick mercury product.Mercurous waste gas is qualified discharge after " three grades " purifying treatment, and trade effluent uses through six grades of purifying treatment Posterior circle, does not discharge.Report without the need to adding other any fuel energy in this process, so greatly saved energy consumption.Shortcoming: system and device adopts stacking conglomeration to become block equally, after spontaneous combustion drying, hand-fed, the gac of Induction refining there is certain combustibility, but its burning-point is very high, reach about 1200 DEG C, not adding other fuel any makes its fuel value discuss, burning needs oxygen or air, and bring large load will to so follow-up cooling apparatus, cooling apparatus will be large, gac burning can produce carbon monoxide or carbonic acid gas in addition, also having organism in Induction refining, may there is multiple obnoxious flavour in the gas that burning produces, and exhaust gas purification system is complicated.
We utilize caustic soda and useless mercury catalyst to flood 24 hours at normal temperatures, and natural drying 24 hours, then distills, and result product major part is out mercury chloride, illustrates that impregnation is incomplete at normal temperatures; We adopt again caustic soda and useless mercury catalyst under the situation stirred and heat, and the decreasing ratio of mercury is suitable with the pretreated effect of useless mercury catalyst with employing milk of lime with the rate of recovery.
Summary of the invention
The utility model provides the system that mercury in useless mercury catalyst is reclaimed in a kind of efficient and environmental protection, realizes the environmental issue solving useless mercury catalyst resource re-using and mercury catalyst treating processes of giving up; From various mercury compound, obtain purer mercury simple substance, reduce equipment corrosion, prevent caking from enhancing productivity.
The technical scheme that the utility model adopts is: a kind of high-efficiency environment friendly reclaims the system of mercury in useless mercury catalyst, comprises pretreatment unit, drying unit, dust removal process unit, distillation unit, cooling unit, collector unit, tail gas treating unit; Pretreatment unit, drying unit, distillation unit, cooling unit, tail gas treating unit connect successively, and dust removal process element connection is in pretreatment unit and drying unit, and collector unit is connected in distillation unit and cooling unit.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, its pretreatment unit by flooding still, custody transfer machine, alkali tank form; Custody transfer machine connects the absorption tower in dipping still import, dust removal process unit, for the transport of useless mercury catalyst and solid base; Dipping still connects alkali tank, dust removal process unit, drying unit, to give up mercury catalyst for soda-dip; Dipping still arranges whipping appts, and in dipping still chuck, logical steam or thermal oil heat; Increase the utilising efficiency of alkali lye.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, and its drying unit is connected by transition tank and drying machine order, and drying machine connects cleaning apparatus; Employing two-stage is dry, and one-level is that to utilize the used heat of slag charcoal to carry out in transition tank predrying, and transition tank is the Sealing Arrangement of vertical double structure; Secondary drying adopts the drying machine of successive drying form, and drying temperature preferably controls at 100-110 DEG C, and drying machine adopts horizontal drier, improves drying efficiency, prevents caking, reduces equipment corrosion.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, its dust removal process unit is made up of cleaning apparatus and absorption tower, cleaning apparatus import connects custody transfer machine and drying machine, and outlet connects absorption tower, and cleaning apparatus is sack cleaner or spray tower; Absorption tower is Spray column, and import connects dipping still and cleaning apparatus, and for the treatment of the gas produced in dust and absorption dipping still steeping process, save energy, protection of the environment, raises the efficiency.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, its distillation unit is made up of electric distilling furnace, the import of electricity distilling furnace connects useless mercury catalyst storehouse, and outlet connects collector unit and cooling unit, is separated with carbon slag for mercury vapour, water vapour in useless mercury catalyst; Electricity distilling furnace is vertical electric distilling furnace, bilayer structure, the retort of dress material is inner at electric distilling furnace, multiple little chamber structure is separated with between in retort, the width in little storehouse is preferably 20mm-40mm, be provided with interior heating unit between little storehouse, be furnished with external heat element outside retort, heating unit is resistance wire or globars; Improve decomposition efficiency.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, its cooling unit is connected successively by fin cooling coil, upright radiator, cooling unit import is connected in distillation unit, outlet is connected in tail gas treating unit, for the cooling to carbon slag, mercury vapour, water vapour after decomposition; The base tube of fin cooling coil pipeline adopts carbon steel, and base tube diameter is preferably 25mm-35mm, upright radiator, adopts circulating water.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, and its collector unit is made up of slag storehouse, mercury holding tank, and slag storehouse is by high-temperature conveyer and distillation element connection, high-temperature conveyer is high temperature chain bucket or scraper conveyor, adopt closed structure, prevent dust, protection of the environment; The import of mercury holding tank connects cooling unit, for collecting the mercury after mercury vapour, water vapor condensation and water; Slag charcoal storehouse is vertical double structural device, internals is arranged the duct of some amount, and the diameter in duct is 2-2.5mm, and at feed opening, place is provided with spraying plant.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, and its tail gas treating unit import connects cooling unit, is connected by exhaust fan, activated carbon adsorption bed, washing tower order; Exhaust fan is used for providing distillation cell pressure and cooling system power, and make pressure in electric distilling furnace remain on-1KPa ~-3KPa, electric distilling furnace tail gas out provides power; The vertical upper and lower series-parallel connection of activated carbon adsorption bed 3-5 platform is arranged, adopts radial bed structure, can adopt three-decker, bed peripheral hardware cooling layer, cooling temperature 0-50 DEG C; Washing tower is that Spray column absorbs process, and Spray column absorption liquid can adopt the solution such as sodium hydroxide or sodium sulphite.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, and in system, custody transfer machine, high-temperature conveyer are closed structure form, prevents gas, dust from overflowing system, protection of the environment.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, the supporting interchanger of drying machine that secondary drying is used and blower fan, and interchanger adopts vertical heat exchanger or scatterer or electric heater.
A kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst, and the temperature of electric distilling furnace is monitored by inside and outside temperature element, by PLC program by chain to temperature element and heating system, and the power of control heating unit.
The use procedure that a kind of high-efficiency environment friendly as above reclaims the system of mercury in useless mercury catalyst is carried out as follows:
The useless mercury catalyst measured and solid base are sent in dipping still by custody transfer machine, add quantitative water, make sodium hydroxide solution mass concentration at 13%-20%, dipping still is heated by thermal oil or steam, in heat-processed, time opening stirs, and temperature controls, at 80 DEG C-95 DEG C, to hold time at 100-150 minute, the dust that feeding process produces is by supporting cleaning apparatus process, and the gas produced in heat-processed enters absorption tower, and to carry out process qualified rear emptying; The alkali lye of the complete rear remnants of pre-treatment enters in alkali tank, adds in next steeping fluid.
(2) drying of useless mercury catalyst
The useless mercury catalyst that pre-treatment completes is discharged in transition tank, in transition tank, utilize the heat of follow-up slag charcoal to carry out predrying, useless mercury catalyst after pre-dried enters in drying machine and carries out successive drying, dry temperature controls at 90-120 DEG C, material moisture < 1% after dry, dried useless mercury catalyst adopts custody transfer machine to send in Induction refining storehouse.
(3) in useless mercury catalyst, mercury reclaims
Useless mercury catalyst in Induction refining storehouse opens the heating system of electric distilling furnace after being metered into the inherent charging of electric distilling furnace retort, temperature is controlled at 550-800 DEG C, heating system controls automatically according to the furnace temperature of setting, enter the state of heating and insulation, heating and distillation time control at 6-8 hour, exhaust fan is opened in heat-processed, in exhaust fan ingress, variable valve is installed, ensure that electric distilling furnace runs under-1KPa ~-3KPa by the air quantity after regulating fan outlet tube, the mercury vapour produced and water vapour enter cooling fins cooling coil and the cooling of upright radiator two-stage, the mercury simple substance that condensation is got off and water enter in mercury holding tank, the gas of condensation is not had to enter the activated carbon adsorption bed of thtee-stage shiplock, the gas of going out in adsorption bed is qualified discharge after washing tower process again.The slag charcoal isolating mercury is discharged into high-temperature conveyer and sends in slag storehouse, and the waste heat of slag charcoal utilizes by entering preorder system after heat exchange, and cooled slag charcoal is discharged into slag charcoal place.
A kind of high-efficiency environment friendly provided by the utility model reclaims the system of mercury in useless mercury catalyst, fully react under the condition stirred and heat with sodium hydroxide solution and useless mercury catalyst, the useless mercury catalyst complete for pre-treatment carries out drying, dried useless mercury catalyst adopts electric distilling furnace to distill, still-process controls automatically, tail gas is qualified discharge after multiple-stage treatment, whole process does not have Wastewater Pollutant to produce and discharge, the utilization ratio of waste heat is also high, slag charcoal after process is easy to comprehensive utilization and reprocessing, realize useless mercury catalyst mercury high efficiente callback, solve Induction refining and dispose environmental issue, the re-using of mercury and gac, whole Automation of Manufacturing Process degree is high, environmental protection.
Accompanying drawing explanation
Fig. 1 reclaims the schema of the system of mercury in useless mercury catalyst for a kind of high-efficiency environment friendly that the utility model provides.
Drawing reference numeral: 1, useless mercury catalyst, 2, solid base, 3, custody transfer machine, 4, dipping still, 5, transition tank, 6, drying machine, 7, custody transfer machine, 8, Induction refining storehouse, 9, electric distilling furnace, 10a, fin cooling coil, 10b, upright radiator, 11, exhaust fan, 12, activated carbon adsorption bed, 13, washing tower, 14, mercury holding tank, 15, high-temperature conveyer, 16, cleaning apparatus, 17, absorption tower, 18, alkali tank.
Embodiment
In order to better the utility model is described, lift following instance, but scope of the present utility model is not limited to this, its claimed scope is recorded in the claim of claim.
Embodiment 1:
With reference to Figure of description 1, the technical scheme that the utility model adopts is: a kind of high-efficiency environment friendly reclaims the system of mercury in useless mercury catalyst, arranges pretreatment unit, drying unit, dust removal process unit, distillation unit, cooling unit, collector unit, tail gas treating unit; Pretreatment unit, drying unit, distillation unit, cooling unit, tail gas treating unit connect successively, and dust removal process element connection is in pretreatment unit and drying unit, and collector unit is connected in distillation unit and cooling unit.Its pretreatment unit by flooding still 4, custody transfer machine 3, alkali tank form 18; Custody transfer machine 3 connects the absorption tower 17 in dipping still 4 import and dust removal process unit, for the transport of useless mercury catalyst 1 and solid base 2; Dipping still 4 connects alkali tank 18, dust removal process unit, drying unit, to give up mercury catalyst 1 for soda-dip; Dipping still 4 arranges whipping appts, and stir speed (S.S.) controls at 10r/min-30 r/min, and in dipping still 4 chuck, logical steam or thermal oil heat; Increase the utilising efficiency of alkali lye.Drying unit is connected by transition tank 5 and drying machine 6 order, and drying machine 6 connects cleaning apparatus 16; Employing two-stage is dry, and one-level is that to utilize the used heat of slag charcoal to carry out in transition tank 5 predrying, and transition tank 5 is the Sealing Arrangement of vertical double structure; Secondary drying adopts the drying machine 6 of successive drying form, and drying temperature preferably controls at 100-110 DEG C, and drying machine 6 adopts horizontal drier, improves drying efficiency, prevents caking, reduces equipment corrosion.Dust removal process unit is made up of cleaning apparatus 16 and absorption tower 17, and cleaning apparatus 16 import connects custody transfer machine 3 and drying machine 6, and outlet connects absorption tower 17, and cleaning apparatus 16 is sack cleaner or spray tower; Absorption tower 17 is Spray column, and import connects dipping still 4 and cleaning apparatus 16, and for the treatment of the gas produced in dust and absorption dipping still 4 steeping process, save energy, protection of the environment, raises the efficiency.Distillation unit is made up of electric distilling furnace 9, and electric distilling furnace 9 import connects useless mercury catalyst storehouse 8, and outlet connects collector unit and cooling unit, is separated with carbon slag for mercury vapour, water vapour in useless mercury catalyst; Electricity distilling furnace 9 is vertical electric distilling furnace, bilayer structure, the retort of dress material is inner at electric distilling furnace, multiple little chamber structure is separated with between in retort, the width in little storehouse is preferably 20mm-30mm, be provided with interior heating unit between little storehouse, be furnished with external heat element outside retort, heating unit is resistance wire or globars; Improve decomposition efficiency.Cooling unit is connected successively by fin cooling coil 10a, upright radiator 10b, and cooling unit import is connected in distillation unit, and outlet is connected in tail gas treating unit, for the cooling to carbon slag, mercury vapour, water vapour after decomposition; The base tube of fin cooling coil 10a pipeline adopts carbon steel, and base tube diameter is preferably 25mm-35mm, upright radiator, adopts circulating water.Collector unit is made up of slag storehouse 19, mercury holding tank 14, and slag storehouse 19 is by high-temperature conveyer 15 and distillation element connection, and high-temperature conveyer 15 is high temperature chain bucket or scraper conveyor, adopts closed structure, prevents dust, protection of the environment; Mercury holding tank 14 import connects cooling unit, for collecting the mercury after mercury vapour, water vapor condensation and water; Slag charcoal storehouse 19 is vertical double structural device, internals is arranged the duct of some amount, and the diameter in duct is 2-2.5mm, and at feed opening, place is provided with spraying plant.Tail gas treating unit import connects cooling unit, is connected by exhaust fan 11, activated carbon adsorption bed 12, washing tower 13 order; Exhaust fan 11 is for providing distillation cell pressure and cooling system power, and make pressure in electric distilling furnace remain on-1KPa ~-3KPa, electric distilling furnace 9 tail gas out provides power; The vertical upper and lower series-parallel connection of activated carbon adsorption bed 12 is arranged, arranges 3-5 platform, adopts radial bed structure, can adopt three-decker, bed peripheral hardware cooling layer, cooling temperature 0-50 DEG C; Washing tower 13 processes for Spray column absorbs, and mist absorption tower absorption liquid can adopt the solution such as sodium hydroxide or sodium sulphite.
In system, high-temperature conveyer 15 is closed structure form, prevents gas, dust from overflowing system, protection of the environment.The supporting interchanger of drying machine 6 that secondary drying is used and blower fan, interchanger adopts vertical heat exchanger or scatterer or electric heater.The temperature of electricity distilling furnace 9 is monitored by inside and outside temperature element, by PLC program, temperature element and heating system is chain, the power of control heating unit.
Claims (10)
1. high-efficiency environment friendly reclaims a system for mercury in useless mercury catalyst, it is characterized in that comprising pretreatment unit, drying unit, dust removal process unit, distillation unit, cooling unit, collector unit, tail gas treating unit; Pretreatment unit, drying unit, distillation unit, cooling unit, tail gas treating unit connect successively, and dust removal process element connection is in pretreatment unit and drying unit, and collector unit is connected in distillation unit and cooling unit.
2. a kind of high-efficiency environment friendly as claimed in claim 1 reclaims the system of mercury in useless mercury catalyst, it is characterized in that pretreatment unit by flooding still, custody transfer machine, alkali tank form; Custody transfer machine connects the cleaning apparatus in the import of dipping still, dust removal process unit, and dipping still connects alkali tank, dust removal process unit, drying unit, and dipping still arranges whipping appts, and in dipping still chuck, logical steam or thermal oil heat.
3. a kind of high-efficiency environment friendly as claimed in claim 1 reclaims the system of mercury in useless mercury catalyst, and it is characterized in that drying unit is connected by transition tank and drying machine order, drying machine connects cleaning apparatus; Employing two-stage is dry, and one-level is that to utilize the used heat of slag charcoal to carry out in transition tank predrying, and transition tank is the Sealing Arrangement of vertical double structure; Secondary drying adopts the drying machine of successive drying form, adopts horizontal drier.
4. a kind of high-efficiency environment friendly as claimed in claim 1 reclaims the system of mercury in useless mercury catalyst, it is characterized in that dust removal process unit is made up of cleaning apparatus and absorption tower, cleaning apparatus import connects custody transfer machine and drying machine, and outlet connects absorption tower, and cleaning apparatus is sack cleaner or spray tower; Absorption tower is Spray column, and import connects dipping still and cleaning apparatus.
5. a kind of high-efficiency environment friendly as claimed in claim 1 reclaims the system of mercury in useless mercury catalyst; it is characterized in that distillation unit is made up of electric distilling furnace; the import of electricity distilling furnace connects useless mercury catalyst storehouse, and outlet connects collector unit and cooling unit, and electric distilling furnace is vertical electric distilling furnace; bilayer structure; be separated with multiple little chamber structure between in retort, the width in little storehouse is 20mm-40mm, is provided with interior heating unit between little storehouse; be furnished with external heat element outside retort, heating unit is resistance wire or globars.
6. a kind of high-efficiency environment friendly as claimed in claim 1 reclaims the system of mercury in useless mercury catalyst; it is characterized in that cooling unit is connected successively by fin cooling coil, upright radiator; cooling unit import is connected in distillation unit; outlet is connected in tail gas treating unit; base tube diameter is 25mm-35mm; upright radiator, adopts circulating water.
7. a kind of high-efficiency environment friendly as claimed in claim 1 reclaims the system of mercury in useless mercury catalyst; it is characterized in that collector unit is made up of slag storehouse, mercury holding tank; slag storehouse is by high-temperature conveyer and distillation element connection; high-temperature conveyer is high temperature chain bucket or scraper conveyor, adopts closed structure, and the import of mercury holding tank connects cooling unit; slag charcoal storehouse is vertical double structural device; internals is arranged the duct of some amount, the diameter in duct is 2-2.5mm, and at feed opening, place is provided with spraying plant.
8. a kind of high-efficiency environment friendly as claimed in claim 1 reclaims the system of mercury in useless mercury catalyst, it is characterized in that tail gas treating unit import connects cooling unit, is connected by exhaust fan, activated carbon adsorption bed, washing tower order; The vertical upper and lower series-parallel connection of activated carbon adsorption bed 3-5 platform is arranged, adopt radial bed structure, bed peripheral hardware cooling layer, washing tower is Spray column.
9. a kind of high-efficiency environment friendly as claimed in claim 7 reclaims the system of mercury in useless mercury catalyst, it is characterized in that high-temperature conveyer is closed structure form.
10. a kind of high-efficiency environment friendly as claimed in claim 3 reclaims the system of mercury in useless mercury catalyst, it is characterized in that the supporting interchanger of drying machine that secondary drying is used and blower fan, and interchanger adopts vertical heat exchanger or scatterer or electric heater.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012329A (en) * | 2017-03-27 | 2017-08-04 | 昆明理工大学 | A kind of method of the synchronous mercury reclaimed in useless mercury catalyst and regenerated carbon |
| CN108559857A (en) * | 2018-04-23 | 2018-09-21 | 喜德县良在硅业有限公司 | A kind of useless mercury catalyst mercury recycling and slag harmlessness treatment process |
| CN111187902A (en) * | 2020-01-09 | 2020-05-22 | 中国原子能科学研究院 | Aluminum matrix mercury catalysis technology dissolving system |
-
2015
- 2015-03-31 CN CN201520185481.8U patent/CN204738001U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107012329A (en) * | 2017-03-27 | 2017-08-04 | 昆明理工大学 | A kind of method of the synchronous mercury reclaimed in useless mercury catalyst and regenerated carbon |
| CN107012329B (en) * | 2017-03-27 | 2019-07-16 | 昆明理工大学 | A kind of method of the synchronous mercury recycled in useless mercury catalyst and regenerated carbon |
| CN108559857A (en) * | 2018-04-23 | 2018-09-21 | 喜德县良在硅业有限公司 | A kind of useless mercury catalyst mercury recycling and slag harmlessness treatment process |
| CN111187902A (en) * | 2020-01-09 | 2020-05-22 | 中国原子能科学研究院 | Aluminum matrix mercury catalysis technology dissolving system |
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