CN110241315A - Cooling technique is used in a kind of production and processing of mercury - Google Patents
Cooling technique is used in a kind of production and processing of mercury Download PDFInfo
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- CN110241315A CN110241315A CN201910396812.5A CN201910396812A CN110241315A CN 110241315 A CN110241315 A CN 110241315A CN 201910396812 A CN201910396812 A CN 201910396812A CN 110241315 A CN110241315 A CN 110241315A
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- mercury
- flue gas
- liquid
- mercurous
- collection
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/005—Preliminary treatment of scrap
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B43/00—Obtaining mercury
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/02—Refining by liquating, filtering, centrifuging, distilling, or supersonic wave action including acoustic waves
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of mercury production and processing cooling techniques, comprising the following steps: the drying of a, mercurous solid waste；B, the distillation of mercurous solid waste；C, first condensation；D, secondary condensation；E, the collection of liquid mercury；F, flue gas final process；G, wastewater treatment.Beneficial effect is: by air-cooled and water cooling cooperation, the cooling efficiency of mercury vapour can be improved, and under the premise of same condensation effect, can reduce the structure size of water cooling equipment, the place for reducing cooling equipment occupies, and reduces the installation cost of water cooling equipment；By carrying out cooling and heat dissipation to mercury vapour during air-cooled, most of mercury vapour can be converted to liquid mercury, cooperate subsequent water cooling equipment, the condensation effect of mercury vapour can be improved, and the collection of liquid mercury can be carried out respectively at two groups of condensing plants, improve the collection efficiency of liquid mercury.
Description
Technical field
The present invention relates to mercury to produce cooling technology field, and in particular to cooling technique is used in a kind of production and processing of mercury.
Background technique
Mercury catalyst, that is, mercury chloride is a kind of solid catalyst in organic synthesis, directly arranges after use
It puts and will cause serious environmental pollution, therefore, it is necessary to be recycled to the mercury inside mercury catalyst.Existing mercury recovery process
It is to react to form mercury oxide with mercury chloride using strong base solution first, then by heating roasting, mercury oxide is evaporated to mercury
Steam then carries out condensation collection, to realize the recycling of mercury.The mercury vapour cooling of prior art is all made of water cooling, that is, passes through
The cooling water of circulation cools down to condenser, to collect liquid mercury is condensed by the mercury vapour of condenser.Existing cooling
Technique is larger to the consumption of cooling water due to only with water cooling, and since the cooling water amount of needs is larger, leads to existing cooling
Place needed for technique is larger, and construction cost is high.Therefore, we design a kind of comprehensive cooling technique.
Summary of the invention
The object of the invention is that a kind of mercury production and processing cooling technique is provided to solve the above-mentioned problems, this hair
Preferred technical solution, which includes, in many technical solutions of bright offer to reduce water by air-cooled and water cooling mutual cooperation
The occupied area of cool equipment reduces place and occupies, and reduces cost, and convenient for technical effects such as the collections of liquid mercury, as detailed below
It illustrates.
To achieve the above object, the present invention provides following technical schemes:
A kind of mercury production and processing cooling technique provided by the invention, comprising the following steps:
A, the drying of mercurous solid waste: pretreated mercurous solid waste is subjected to heated-air drying, is taken out residual in preprocessing process
The moisture stayed；
B, the distillation of mercurous solid waste: dry mercurous solid waste obtained in step a is placed in the horizontal retort of electric heating and is carried out
Distillation, and evaporate the mercury oxide in mercurous waste material under 700 DEG C of -800 DEG C of hot conditions, form the primary cigarette containing mercury vapour
Gas；
C, first condensation: the flue gas containing mercury vapour generated in step b is passed through in air-cooled condenser and is carried out for the first time
It condenses, most of mercury vapour in flue gas forms liquid mercury after condensation, obtains the secondary flue gas containing a small amount of mercury vapour；
D, secondary condensation: the secondary flue gas generated in step c is passed through in the multitubular condenser of connection water-cooling system, a small amount of mercury
Steam forms liquid mercury in multitubular condenser, while forming mercurial soot after the solid granulates cooling in flue gas, and remaining flue gas is
Three-level flue gas containing micro mercury vapour He other magazines；
E, the collection of liquid mercury: the liquid mercury mixing mercurial soot generated in step d falls into the collection being arranged below multitubular condenser
In mercury tank, then by shunting, liquid mercury falls into collection mercury case and collects, and mercurial soot inputs in mercurial soot bucket, is then sent into cyclone
Separation is isolated and is stored in liquid mercury feeding collection mercury case therein, and mercurial soot residue is sent into wastewater disposal basin；
F, flue gas final process: filtering of the remaining three-level flue gas through activated carbon adsorber and scrubbing tower in the step d
After washing, the waste liquid of generation is passed through in sodium polysulfide solution pond and carries out hybrid reaction, the waste water after reaction is passed through described useless
In pond；
G, wastewater treatment: the waste water generated in the step e and step f staticly settles inside wastewater disposal basin, obtains
Supernatant is sent into cooling system and is recycled.
Preferably, the pre-treatment step of mercurous solid waste is to be put into mercurous waste material fill first in the step a
In the pretreatment pool of 35% sodium hydroxide solution, heating is that the mercury chloride in mercurous waste material is reacted with the sodium hydroxide in lye,
So that mercury therein is become mercury oxide state, then the mercurous waste after immersion is taken out, obtains mercurous solid waste.
Preferably, the hot-air drying device in the step a is hot-blast baker.
It is collected preferably, the liquid mercury in the step c at condensation is fallen into the collection mercury case being arranged below condenser.
To sum up, the beneficial effects of the present invention are: 1, by air-cooled with water cooling cooperation, the cooling effect of mercury vapour can be improved
Rate, and under the premise of same condensation effect, the structure size of water cooling equipment can be reduced, the place for reducing cooling equipment occupies,
Reduce the installation cost of water cooling equipment；
2, by that, to mercury vapour progress cooling and heat dissipation, most of mercury vapour can be converted to liquid mercury during air-cooled,
Cooperate subsequent water cooling equipment, the condensation effect of mercury vapour can be improved, and liquid mercury can be carried out respectively at two groups of condensing plants
Collection, improve the collection efficiency of liquid mercury.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is process flow chart of the invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, technical solution of the present invention will be carried out below
Detailed description.Obviously, described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, those of ordinary skill in the art are obtained all without making creative work
Other embodiment belongs to the range that the present invention is protected.
Shown in Figure 1, the present invention provides a kind of mercury production and processing cooling techniques, comprising the following steps:
A, the drying of mercurous solid waste: pretreated mercurous solid waste is subjected to heated-air drying, is taken out residual in preprocessing process
The moisture stayed, the hair partial moisture that drying process only needs to remove in mercurous solid waste do not flow until mercurous solid waste can form stationary state
It is dynamic；
B, the distillation of mercurous solid waste: dry mercurous solid waste obtained in step a is placed in the horizontal retort of electric heating and is carried out
Distillation, and evaporate the mercury oxide in mercurous waste material under 700 DEG C of -800 DEG C of hot conditions, form the primary cigarette containing mercury vapour
Gas contains mercury vapour, solid dust and vapor in primary flue gas, and the waste residue generated after rectification is periodically sent into after mobile phone to be passed through
The cinder field of Anti-seeping technology is stacked；
C, first condensation: the flue gas containing mercury vapour generated in step b is passed through in air-cooled condenser and is carried out for the first time
Condensation, most of mercury vapour in flue gas form liquid mercury after condensation, and liquid mercury, which enters in the collection mercury case of lower part, to be stored, and
Mercury metal finished product is periodically become by hand caging storage, obtains the secondary flue gas containing a small amount of mercury vapour；
D, secondary condensation: the secondary flue gas generated in step c is passed through in the multitubular condenser of connection water-cooling system, a small amount of mercury
Steam forms liquid mercury in multitubular condenser, while forming mercurial soot after the solid granulates cooling in flue gas, and remaining flue gas is
Three-level flue gas containing micro mercury vapour He other magazines；
E, the collection of liquid mercury: the liquid mercury mixing mercurial soot generated in step d falls into the collection being arranged below multitubular condenser
In mercury tank, then by shunting, liquid mercury falls into collection mercury case and collects, and mercurial soot inputs in mercurial soot bucket, containing in the part mercurial soot
Mercury quantity is then sent into cyclone and is separated up to 70%-80%, isolates and stores in liquid mercury feeding collection mercury case therein, mercury
Soot residue is sent into wastewater disposal basin, and precipitating and drying are then passed through, and is sent into the horizontal retort of electric heating and is distilled again；
F, flue gas final process: filtering of the remaining three-level flue gas through activated carbon adsorber and scrubbing tower in the step d
After washing, the waste liquid of generation is passed through in sodium polysulfide solution pond and carries out hybrid reaction, the waste water after reaction is passed through described useless
In pond；
G, wastewater treatment: the waste water generated in the step e and step f staticly settles inside wastewater disposal basin, obtains
Supernatant is sent into cooling system and is recycled, and the water in wastewater disposal basin is Ke Xunhuanliyong, not outlet, energy conservation and environmental protection.
As optional embodiment, in the step a, the pre-treatment step of mercurous solid waste is, first by mercurous waste material
It is put into the pretreatment pool for filling 35% sodium hydroxide solution, heating is the hydroxide in mercury chloride and lye in mercurous waste material
Sodium reaction, makes mercury therein become mercury oxide state, then takes out the mercurous waste after immersion, obtains mercurous solid waste；
Hot-air drying device in the step a is hot-blast baker；
Liquid mercury in the step c at condensation falls into the collection mercury case being arranged below condenser and collects.
By air-cooled and water cooling cooperation, the cooling efficiency of mercury vapour can be improved, and under the premise of same condensation effect,
The structure size of water cooling equipment can be reduced, the place for reducing cooling equipment occupies, and reduces the installation cost of water cooling equipment；
By carrying out cooling and heat dissipation to mercury vapour during air-cooled, most of mercury vapour can be converted to liquid mercury, matched
Subsequent water cooling equipment is closed, the condensation effect of mercury vapour can be improved, and liquid mercury can be carried out respectively at two groups of condensing plants
It collects, improves the collection efficiency of liquid mercury.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (4)
1. a kind of mercury production and processing cooling technique, which comprises the following steps:
A, the drying of mercurous solid waste: pretreated mercurous solid waste is subjected to heated-air drying, is taken out remaining in preprocessing process
Moisture；
B, the distillation of mercurous solid waste: dry mercurous solid waste obtained in step a being placed in the horizontal retort of electric heating and is distilled,
And evaporate the mercury oxide in mercurous waste material under 700 DEG C of -800 DEG C of hot conditions, form the primary flue gas containing mercury vapour；
C, first condensation: the flue gas containing mercury vapour generated in step b being passed through in air-cooled condenser and is condensed for the first time,
Most of mercury vapour in flue gas forms liquid mercury after condensation, obtains the secondary flue gas containing a small amount of mercury vapour；
D, secondary condensation: the secondary flue gas generated in step c is passed through in the multitubular condenser of connection water-cooling system, a small amount of mercury vapour
Liquid mercury is formed in multitubular condenser, at the same solid granulates in flue gas it is cooling after form mercurial soot, remaining flue gas be containing
The three-level flue gas of micro mercury vapour and other magazines；
E, the collection of liquid mercury: the liquid mercury mixing mercurial soot generated in step d falls into the collection mercury tank being arranged below multitubular condenser
In, then by shunting, liquid mercury falls into collection mercury case and collects, and mercurial soot inputs in mercurial soot bucket, and it is then sent into cyclone and separates,
It isolates and is stored in liquid mercury feeding collection mercury case therein, mercurial soot residue is sent into wastewater disposal basin；
F, it flue gas final process: filtering of the remaining three-level flue gas through activated carbon adsorber and scrubbing tower and is washed in the step d
After washing, the waste liquid of generation is passed through in sodium polysulfide solution pond and carries out hybrid reaction, the waste water after reaction is passed through the wastewater disposal basin
In；
G, wastewater treatment: the waste water generated in the step e and step f staticly settles inside wastewater disposal basin, obtains supernatant
Liquid is sent into cooling system and is recycled.
2. a kind of mercury production and processing cooling technique according to claim 1, it is characterised in that: mercurous solid in the step a
Useless pre-treatment step is to be put into mercurous waste material in the pretreatment pool for filling 35% sodium hydroxide solution first, and heating is to contain
Mercury chloride in mercury waste material is reacted with the sodium hydroxide in lye, and mercury therein is made to become mercury oxide state, after then impregnating
Mercurous waste take out, obtain mercurous solid waste.
3. a kind of mercury production and processing cooling technique according to claim 1, it is characterised in that: the hot wind in the step a
Drying equipment is hot-blast baker.
4. a kind of mercury production and processing cooling technique according to claim 1, it is characterised in that: in the step c at condensation
Liquid mercury fall into the collection mercury case being arranged below condenser and collect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396812.5A CN110241315A (en) | 2019-05-14 | 2019-05-14 | Cooling technique is used in a kind of production and processing of mercury |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910396812.5A CN110241315A (en) | 2019-05-14 | 2019-05-14 | Cooling technique is used in a kind of production and processing of mercury |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110241315A true CN110241315A (en) | 2019-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910396812.5A Pending CN110241315A (en) | 2019-05-14 | 2019-05-14 | Cooling technique is used in a kind of production and processing of mercury |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537585A (en) * | 2022-10-19 | 2022-12-30 | 贵州大学 | Process for extracting metallic mercury from mercury-containing acid mud |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4087276A (en) * | 1975-05-05 | 1978-05-02 | Anic S.P.A. | Removal of mercury from sludge by heating and condensing |
| CN2273312Y (en) * | 1996-01-15 | 1998-01-28 | 张觉民 | Self-cooling distiller for calomel |
| CN203960300U (en) * | 2014-05-30 | 2014-11-26 | 贵州蓝天固废处置有限公司 | A kind for the treatment of system that reclaims mercury for useless mercury catalyst dry method |
| 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 |
-
2019
- 2019-05-14 CN CN201910396812.5A patent/CN110241315A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4087276A (en) * | 1975-05-05 | 1978-05-02 | Anic S.P.A. | Removal of mercury from sludge by heating and condensing |
| CN2273312Y (en) * | 1996-01-15 | 1998-01-28 | 张觉民 | Self-cooling distiller for calomel |
| CN203960300U (en) * | 2014-05-30 | 2014-11-26 | 贵州蓝天固废处置有限公司 | A kind for the treatment of system that reclaims mercury for useless mercury catalyst dry method |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115537585A (en) * | 2022-10-19 | 2022-12-30 | 贵州大学 | Process for extracting metallic mercury from mercury-containing acid mud |
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Application publication date: 20190917 |
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