CN212491631U - Device for multi-stage condensation treatment of mercury-containing flue gas - Google Patents
Device for multi-stage condensation treatment of mercury-containing flue gas Download PDFInfo
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- CN212491631U CN212491631U CN202020845529.4U CN202020845529U CN212491631U CN 212491631 U CN212491631 U CN 212491631U CN 202020845529 U CN202020845529 U CN 202020845529U CN 212491631 U CN212491631 U CN 212491631U
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Abstract
The utility model relates to a device for multi-stage condensation treatment of mercury-containing flue gas, which comprises a first double-layer condensation pipe, a second double-layer condensation pipe, a third double-layer condensation pipe, a first collection bottle, a second collection bottle, a gas purifier, a water filtering bottle, a first mercury discharge valve, a second mercury discharge valve and a third mercury discharge valve; every double-deck condenser pipe all has condensation inner tube and condensation outer tube, and the upper and lower both ends of condensation inner tube are mercury-containing flue gas import and mercury outlet respectively, and the condensation outer tube has condensate import and condensate export. The utility model has the advantages of smaller occupied space, long maintenance period, and better mercury condensation effect because the gas is discharged through the outlet of the three-level double-layer condensation pipe; mercury is collected in a non-contact manner in the whole process, and mercury reaching the liquid level directly flows through a centralized collection position; the high mercury-containing part does not need to be directly contacted with water, so that the water pollution is reduced.
Description
Technical Field
The utility model relates to a condensing equipment of mercury-containing flue gas, specifically speaking are device of mercury-containing flue gas is handled to multistage condensation.
Background
In a laboratory environment, the amount of mixed gas of the mercury-containing rock core treated by the tube furnace is less than or equal to 2000L/min, and mercury in the mixed gas can be more effectively diluted only by a better condensation process, so that pollution to air and the environment is reduced.
In the traditional condensation method, a condensation pipe with a large diameter and a large occupied space is used for direct water cooling of a quartz glass interlayer, mercury is condensed at one time, and residual gas is directly evacuated. Some activated carbon technology is added at the rear end for dilution, uncoagulated mercury gas can also remain in discharged gas to enter the activated carbon sometimes, and an activated carbon system is easily subjected to secondary pollution by the uncoagulated mercury-containing gas. Some condensation methods adopt a method of directly contacting mixed gas with water to forcibly condense mercury, and although the mercury discharging efficiency is high and the mercury discharging is complete, the mixed liquid with high mercury content can produce a large amount of toxic waste liquid, so that the treatment difficulty of the waste liquid is greatly increased.
Disclosure of Invention
The utility model aims at overcoming the not enough of existence among the prior art, provide a condensation goes out mercury effectual, can whole contactless collect and reducible water pollution's multistage condensation handles the device that contains mercury flue gas.
According to the technical scheme provided by the utility model, the device for treating mercury-containing flue gas by multistage condensation comprises a first double-layer condensation pipe, a second double-layer condensation pipe, a third double-layer condensation pipe, a first collecting bottle, a second collecting bottle, a gas purifier, a water filtering bottle, a first mercury discharge valve, a second mercury discharge valve and a third mercury discharge valve; each double-layer condensing pipe is provided with an inner condensing pipe and an outer condensing pipe, the upper end and the lower end of the inner condensing pipe are respectively provided with a mercury-containing flue gas inlet and a mercury outlet, and the outer condensing pipe is provided with a condensate inlet and a condensate outlet;
the mercury-containing flue gas to be treated is connected with a mercury-containing flue gas inlet of a first double-layer condensing tube, a mercury outlet of the first double-layer condensing tube is connected with a mercury inlet of a first collecting bottle through a connecting tube, a first mercury discharge valve is arranged on the mercury outlet of the first collecting bottle, a flue gas inlet of a second double-layer condensing tube is connected to a connecting tube between the mercury outlet of the first double-layer condensing tube and the mercury inlet of the first collecting bottle through the connecting tube, a mercury outlet of a second double-layer condensing tube is connected with the mercury inlet of the first collecting bottle through the connecting tube, a flue gas inlet of a third double-layer condensing tube is connected to a connecting tube between the mercury outlet of the second double-layer condensing tube and the mercury inlet of the first collecting bottle through the connecting tube, a mercury outlet of the third double-layer condensing tube is connected with the mercury inlet of the second collecting bottle through the connecting tube, a second mercury discharge valve is arranged on the mercury outlet of the second collecting bottle, and a mercury discharge outlet of the second mercury discharge valve is connected with a mercury discharge inlet of the third mercury discharge valve through the connecting tube, the mercury outlet of the third mercury discharge valve is connected with the mercury inlet of the first collecting bottle through a connecting pipe;
on the flue gas inlet of gas cleaner passes through the connecting pipe and inserts the connecting pipe between the mercury outlet of third double-deck condenser pipe and the mercury inlet of second receiving flask, the exhanst gas outlet of gas cleaner passes through the connecting pipe and meets with the flue gas inlet of filter flask, and the exhanst gas outlet of filter flask passes through the flue gas inlet of connecting pipe access gas detector.
Preferably, the first double-layer condensing pipe, the second double-layer condensing pipe and the third double-layer condensing pipe are all spherical condensing pipes.
Preferably, the first collection bottle is a conical bottle, and the capacity of the first collection bottle is 500-1000 ml; the second collecting bottle is an inverted cone-shaped bottle, and the capacity of the second collecting bottle is 30-100 ml.
Preferably, the height of the bottle body of the second collecting bottle is smaller than that of the bottle body of the first collecting bottle.
Preferably, the height 2/3 of the second collection bottle is equal to the height 2/3 of the first collection bottle.
Preferably, the first double-layer condensing pipe, the second double-layer condensing pipe and the third double-layer condensing pipe are connected in series or in parallel to be connected with condensate.
Preferably, the filtering water bottle has the capacity of 100-200ml and contains pure water with the liquid level height of 2/5.
The utility model has the advantages of it is following:
1. the utility model has the advantages of smaller occupied space, long maintenance period, and better mercury condensation effect because the gas is discharged through the outlet of the three-level double-layer condensation pipe;
2. mercury is collected in a non-contact manner in the whole process, and mercury reaching the liquid level directly flows through a centralized collection position;
3. the high mercury-containing part does not need to be directly contacted with water, so that the water pollution is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific embodiments.
A device for treating mercury-containing flue gas by multistage condensation comprises a first double-layer condensation pipe 11, a second double-layer condensation pipe 12, a third double-layer condensation pipe 13, a first collecting bottle 21, a second collecting bottle 22, a gas purifier 3, a water filtering bottle 4, a first mercury discharge valve 51, a second mercury discharge valve 52 and a third mercury discharge valve 53; each double-layer condensing pipe is provided with an inner condensing pipe and an outer condensing pipe, the upper end and the lower end of the inner condensing pipe are respectively provided with a mercury-containing flue gas inlet and a mercury outlet, and the outer condensing pipe is provided with a condensate inlet and a condensate outlet;
the mercury-containing flue gas to be treated is connected with a mercury-containing flue gas inlet of a first double-layer condensing tube 11, a mercury outlet of the first double-layer condensing tube 11 is connected with a mercury inlet of a first collecting bottle 21 through a connecting tube, a first mercury discharge valve 51 is arranged on the mercury outlet of the first collecting bottle 21, a flue gas inlet of a second double-layer condensing tube 12 is connected to the connecting tube between the mercury outlet of the first double-layer condensing tube 11 and the mercury inlet of the first collecting bottle 21 through the connecting tube, the mercury outlet of the second double-layer condensing tube 12 is connected with the mercury inlet of the first collecting bottle 21 through the connecting tube, a flue gas inlet of a third double-layer condensing tube 13 is connected to the connecting tube between the mercury outlet of the second double-layer condensing tube 12 and the mercury inlet of the first collecting bottle 21 through the connecting tube, the mercury outlet of the third double-layer condensing tube 13 is connected with the mercury inlet of a second collecting bottle 22 through the connecting tube, and a second mercury discharge valve 52 is arranged on the mercury outlet of the second collecting bottle 22, the mercury outlet of the second mercury discharge valve 52 is connected with the mercury inlet of the third mercury discharge valve 53 through a connecting pipe, and the mercury outlet of the third mercury discharge valve 53 is connected with the mercury inlet of the first collecting bottle 21 through a connecting pipe;
on the flue gas inlet of gas cleaner 3 inserted the connecting pipe between the mercury outlet of third double-layer condenser 13 and the mercury inlet of second receiving flask 22 through the connecting pipe, the flue gas outlet of gas cleaner 3 met through the flue gas inlet of connecting pipe and strain flask 4, and the flue gas outlet of strain flask 4 inserted the flue gas inlet of gas detection appearance through the connecting pipe.
The first double-layer condensing pipe 11, the second double-layer condensing pipe 12 and the third double-layer condensing pipe 13 are all spherical condensing pipes.
The first collection bottle 21 is a conical bottle, and the capacity of the first collection bottle 21 is 500-1000 ml; the second collecting bottle 22 is an inverted cone-shaped bottle, the capacity of the second collecting bottle 22 is 30-100ml, the height H of the body of the second collecting bottle 22 is smaller than the height H of the body of the first collecting bottle 21, and the height 2/3 of the body of the second collecting bottle 22 is equal to the height 2/3 of the body of the first collecting bottle 21.
The first double-layer condenser pipe 11, the second double-layer condenser pipe 12 and the third double-layer condenser pipe 13 are connected in series or in parallel to be connected with condensate.
The capacity of the filter water bottle 4 is 100-200ml, and pure water with the liquid level height 2/5 is contained in the filter water bottle.
The utility model discloses in, connecting pipe on the flue gas inlet of the first double-deck condenser pipe 11, the double-deck condenser pipe 12 of second, the double-deck condenser pipe 13 of third, the double-deck condenser pipe 12 of second and the connecting pipe on the flue gas inlet of the double-deck condenser pipe 13 of third pass through high temperature welding natural transition, tempering treatment reinforcing stress, and gas inside flows through smoothly.
The first collecting bottle 21 is used for collecting condensed mercury condensed by the first double-layer condensing pipe 11 and the second double-layer condensing pipe 12, and the second collecting bottle 22 is used for collecting condensed mercury condensed by the third double-layer condensing pipe 13.
Normally, the first mercury discharge valve 51, the second mercury discharge valve 52, and the third mercury discharge valve 53 are normally closed. If the liquid level of the first collecting bottle 21 is at the height 2/3 of the bottle body, the first mercury valve 51 needs to be opened for discharging, and the liquid level of the second collecting bottle 22 is at the height 2/3 of the bottle body, the second mercury valve 52 and the third mercury valve 53 need to be opened, so that the mercury collected by the second collecting bottle 22 is discharged to the first collecting bottle 21.
Quartz materials are preferably considered for the flow wall of the gas purifier 3, and the filter medium is activated carbon and can filter out most of other impurities in the flue gas; in order to increase the gas overflow, a micro pump can be additionally arranged at the front end of the gas purifier 3, and when the outlet resistance is increased, the pump can be started for pressurization.
The water filtering bottle 4 is a common glass triangular flask in a laboratory, two openings are reserved at the bottle mouth, one opening is used for feeding and the other opening is used for discharging, a flue gas inlet is communicated with a flue gas outlet of the gas purifier, and the flue gas outlet is connected to a next gas detector; the micro mixed gas flows through the purified water in the water filtering bottle 4, and after the purified water is filtered, the gas flows out through the smoke outlet. The filter flask 4 is filled with pure water with the liquid level of 2/5 and is checked and replaced for 3 to 6 months.
The utility model discloses utilize the method that multistage double-deck condenser pipe (double-deck condenser pipe chooseed for use spherical condenser) established ties side by side to make the mercury-containing flue gas that flows through form the route mode of wave curve circulation, set up the receiving flask that is used for collecting mercury behind the condensation respectively at every level double-deck condenser pipe lower extreme, make mercury condense physics naturally and subside to first receiving flask 21. Because the mercury content in the third double-layer condensing pipe 13 is the minimum, a group of second collecting bottles 22 with olecranon structures are arranged, a small amount of mercury is precipitated to the second collecting bottles 22 by utilizing the combined action of mercury gravity and air resistance, and the micro gas pump sucks the residual gas into the next stage. In the next stage of treatment, the mixed gas is filtered again by using a multi-stage gas purifier 3 containing activated carbon, and the mixed gas enters a last transparent glass filter bottle 4 containing a small amount of water after coming out, so that the mixed gas treated by the gas purifier 3 is diluted.
In order to improve the effect of condensing out mercury, the double-layer condensing pipe can adopt more stages, and the effect of condensing out mercury can be correspondingly improved along with the increase of the stages of the double-layer condensing pipe.
Claims (7)
1. A device for multi-stage condensation treatment of mercury-containing flue gas comprises a first double-layer condensation pipe (11), a second double-layer condensation pipe (12), a third double-layer condensation pipe (13), a first collection bottle (21), a second collection bottle (22), a gas purifier (3), a water filtering bottle (4), a first mercury discharge valve (51), a second mercury discharge valve (52) and a third mercury discharge valve (53); each double-layer condensing pipe is provided with an inner condensing pipe and an outer condensing pipe, the upper end and the lower end of the inner condensing pipe are respectively provided with a mercury-containing flue gas inlet and a mercury outlet, and the outer condensing pipe is provided with a condensate inlet and a condensate outlet; the method is characterized in that:
the mercury-containing flue gas to be treated is connected with a mercury-containing flue gas inlet of a first double-layer condensing tube (11), a mercury outlet of the first double-layer condensing tube (11) is connected with a mercury inlet of a first collecting bottle (21) through a connecting tube, a first mercury discharge valve (51) is arranged on the mercury outlet of the first collecting bottle (21), a flue gas inlet of a second double-layer condensing tube (12) is connected with a connecting tube between the mercury outlet of the first double-layer condensing tube (11) and the mercury inlet of the first collecting bottle (21) through the connecting tube, a mercury outlet of a second double-layer condensing tube (12) is connected with the mercury inlet of the first collecting bottle (21) through the connecting tube, a flue gas inlet of a third double-layer condensing tube (13) is connected with the connecting tube between the mercury outlet of the second double-layer condensing tube (12) and the mercury inlet of the first collecting bottle (21) through the connecting tube, the mercury outlet of the third double-layer condensing tube (13) is connected with the mercury inlet of the second collecting bottle (22) through the connecting tube, a second mercury discharge valve (52) is arranged on a mercury outlet of the second collecting bottle (22), the mercury outlet of the second mercury discharge valve (52) is connected with a mercury inlet of a third mercury discharge valve (53) through a connecting pipe, and the mercury outlet of the third mercury discharge valve (53) is connected with the mercury inlet of the first collecting bottle (21) through a connecting pipe;
the flue gas inlet of the gas purifier (3) is connected to a connecting pipe between the mercury outlet of the third double-layer condensing pipe (13) and the mercury inlet of the second collecting bottle (22) through the connecting pipe, the flue gas outlet of the gas purifier (3) is connected with the flue gas inlet of the water filtering bottle (4) through the connecting pipe, and the flue gas outlet of the water filtering bottle (4) is connected to the flue gas inlet of the gas detector through the connecting pipe.
2. The device for multi-stage condensation treatment of mercury-containing flue gas according to claim 1, characterized in that: the first double-layer condensing pipe (11), the second double-layer condensing pipe (12) and the third double-layer condensing pipe (13) are all spherical condensing pipes.
3. The device for multi-stage condensation treatment of mercury-containing flue gas according to claim 1, characterized in that: the first collecting bottle (21) is a conical bottle, and the capacity of the first collecting bottle (21) is 500-1000 ml; the second collecting bottle (22) is an inverted cone-shaped bottle, and the capacity of the second collecting bottle (22) is 30-100 ml.
4. The device for multi-stage condensation treatment of mercury-containing flue gas according to claim 3, characterized in that: the height of the bottle body of the second collecting bottle (22) is smaller than that of the bottle body of the first collecting bottle (21).
5. The device for multi-stage condensation treatment of mercury-containing flue gas according to claim 4, characterized in that: the height 2/3 of the second collecting bottle (22) is equal to the height 2/3 of the first collecting bottle (21).
6. The device for multi-stage condensation treatment of mercury-containing flue gas according to claim 1, characterized in that: the first double-layer condensing pipe (11), the second double-layer condensing pipe (12) and the third double-layer condensing pipe (13) are connected in series to be connected with condensate or connected in parallel to be connected with condensate.
7. The device for multi-stage condensation treatment of mercury-containing flue gas according to claim 1, characterized in that: the capacity of the filter water bottle (4) is 100-200ml, and pure water with the liquid level height 2/5 is contained in the filter water bottle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020845529.4U CN212491631U (en) | 2020-05-19 | 2020-05-19 | Device for multi-stage condensation treatment of mercury-containing flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020845529.4U CN212491631U (en) | 2020-05-19 | 2020-05-19 | Device for multi-stage condensation treatment of mercury-containing flue gas |
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| Publication Number | Publication Date |
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| CN212491631U true CN212491631U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020845529.4U Active CN212491631U (en) | 2020-05-19 | 2020-05-19 | Device for multi-stage condensation treatment of mercury-containing flue gas |
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| Country | Link |
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| CN (1) | CN212491631U (en) |
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