阅读说明：本技术 一种汞收集装置 (A kind of mercury collection device ) 是由 苏军划 汪洋 李伟 王桦 于 2018-05-21 设计创作，主要内容包括：本发明属于环保技术领域,具体涉及一种汞收集装置。本发明提供的汞吸收材料,通过首创性地采用负载了硫酸盐和银的活性炭纤维,能够对气体中的汞蒸汽进行选择性吸附,吸附过程清洁绿色,无废气、废水等二次污染物产生,吸收材料再生过程简单,不产生二次污染。本发明提供的汞收集装置,能够根据实际工程需要进行不同的吸收层设计,即可以选用包裹汞吸收材料的吸收内腔,又可以选用层层平行设置的吸收板,二者设计均可实现装置模块化,方便更换吸收层,并且分别具有处理效率高和吸收更加彻底的优势。通过在吸收组件上设置透气疏水层,能够进一步促进汞的选择性吸收,配合优选的再生气反应温度,可以使得处理后的再生气中汞浓度低至1μg/m<Sup>3</Sup>。(The invention belongs to environmental technology fields, and in particular to a kind of mercury collection device.Mercury absorbing material provided by the invention, by initiatively using the activated carbon fibre for having loaded sulfate and silver, selective absorption can be carried out to the mercuryvapour in gas, adsorption process cleaning green, the secondary pollutions such as no exhaust gas, waste water generate, absorbing material regenerative process is simple, does not generate secondary pollution.Mercury collection device provided by the invention, different absorbed layer designs can be carried out according to actual requirement of engineering, the absorption inner cavity of package mercury absorbing material can be selected, baffle disposed in parallel layer by layer can be selected again, apparatus module can be achieved in the two design, it is convenient for changing absorbed layer, and is respectively provided with treatment effeciency height and absorbs more thorough advantage.By the way that air-permeable, hydrophobic layer is arranged on absorbent assembly, it can further promote the selective absorbing of mercury, cooperate preferred regeneration gas reaction temperature, mercury concentration is down to 1 μ g/m in the regeneration gas that can make that treated 3 。)

1. a kind of mercury absorbing material, which is characterized in that including Carriers Active Carbon fibe and active material, the active material is sulphur The weight ratio of hydrochlorate and the metal that can be dissolved by mercury, the sulfate and the metal that can be dissolved by mercury is (1:15~1:5).

2. mercury absorbing material according to claim 1, which is characterized in that the bottom of the active material is sulfate, table Layer is the metal that can be dissolved by mercury.

3. a kind of mercury collection device, which is characterized in that including,

Gas collection chamber is equipped with gas access；

Absorbent assembly is located in the gas collection room, and the absorbent assembly has the mercury absorbing material；

Gas vent.

4. mercury collection device according to claim 3, which is characterized in that the absorbent assembly also has PTFE film.

5. mercury collection device according to claim 3 or 4, which is characterized in that the absorbent assembly is absorption mesh or absorption Plate.

6. mercury collection device according to claim 5, which is characterized in that the baffle is made of substrate and absorbed layer, The absorbed layer is the activated carbon fibre.

7. mercury collection device according to claim 6, which is characterized in that the substrate is at least two layers, the absorbed layer It is set between adjacent two substrates.

8. according to any mercury collection device of claim 3-7, which is characterized in that the absorbent assembly be it is multiple, it is multiple Absorbent assembly is arranged perpendicular to horizontal direction parallel.

9. according to any mercury collection device of claim 3-7, which is characterized in that be provided in the gas collection room Absorption chamber, the absorption chamber are connected to the gas collection chamber, and the gas vent is connected to the absorption chamber.

10. mercury collection device according to claim 9, which is characterized in that the absorbent assembly is set to the absorbing cavity On at least one inner wall of room.

11. mercury collection device according to claim 9, which is characterized in that the absorbent assembly be absorption chamber at least One inner wall.

12. mercury collection device according to claim 9, which is characterized in that offered on the absorption chamber side wall with The venthole of gas collection chamber's connection.

13. mercury collection device according to claim 4, the air-permeable, hydrophobic layer is PTFE air-permeable, hydrophobic membrane.

14. mercury collection device according to claim 5, the absorption mesh, which is negative, is loaded with the activity of the metal and sulfate Carbon fibe net.

15. mercury collection device according to claim 1, which is characterized in that the gas vent is connected with mercury detection device.

16. a kind of active coke regeneration device, including activated coke supply unit, activated coke regenerator, which is characterized in that further include power Benefit requires the described in any item mercury collection devices of 3-15, the gas access of the mercury collection device and the activated coke regenerator Stripping gas outlet is regenerated to be connected.

17. a kind of activated coke using the active coke regeneration device described in claim 16 regenerates mercuryvapour recovery process, packet Include following steps:

Regeneration treatment is carried out to activated coke；

In gaseous environment, it can be reacted the gas of regeneration generation and by the metal contact that mercury dissolves；

Export gas.

18. activated coke according to claim 14 regenerates mercuryvapour recovery process, in the gaseous environment containing ammonia and Carbon monoxide.

19. activated coke described in 7 or 18 regenerates mercuryvapour recovery process according to claim 1, the temperature of the regeneration gas is 50 ~70 DEG C.

20. the described in any item activated cokes of 7-19 regenerate mercuryvapour recovery process according to claim 1, water contains in the regeneration gas Amount is not higher than 1wt%.

Technical field

The invention belongs to environmental technology fields, and in particular to a kind of mercury collection device.

Background technique

Activated coke is a kind of novel charcoal material produced using coal as raw material, can be by the SO in flue gas₂And NO_XAbsorption Desulphurization denitration is realized in removing.It is current since the technology has many advantages, such as that non-wastewater discharge, adsorbent (activated coke) are renewable Widely applied desulphurization denitration technology.Activated coke regeneration refers to the activated coke desorption after completing desulphurization denitration and restores adsorption activity Process.

For the SO in activated coke regeneration stripping gas₂Removing sulfuldioxide is more mature at present, and still, coal-fired flue-gas ingredient is multiple It is miscellaneous, remove SO₂And NO_XOutside also containing polluters such as mercury.When carrying out activated coke regeneration, the mercury being adsorbed becomes mercuryvapour, with again Raw stripping gas leaves activated coke.However in the prior art there is no to this part mercuryvapour carry out independent recycling, but with again Other components are handled together in raw stripping gas, generate sulfuric acid etc.；Or it is adsorbed rear buried or pickling processes again.Such as China is specially Sharp document CN104014231B, the technology will be adsorbed again the mercury in activated coke regeneration stripping gas using activated coke, so It carries out the activated coke of adsorption saturation to concentrate landfill disposal afterwards or pickling regeneration is carried out to activated coke.But this will necessarily make At mercury secondary pollution, the operation of pickling regeneration activity coke can also bring a large amount of new pollutions.

To sum up, it is still that those skilled in the art are urgently to be resolved that the mercury released when how to regenerate activated coke, which effectively recycles, Problem.

Summary of the invention

Mercury irretrievable defect when it is an object of the invention to solve in the prior art to regenerate activated coke, and then provide A kind of device that can effectively recycle mercury.

Above-mentioned purpose of the invention is achieved through the following technical solutions:

A kind of mercury absorbing material, including Carriers Active Carbon fibe and active material, the active material are sulfate and can The weight ratio of the metal dissolved by mercury, the sulfate and the metal that can be dissolved by mercury is (1:15~1:5).

The bottom of the active material is sulfate, and surface layer is the metal that can be dissolved by mercury.

A kind of mercury collection device, including,

Gas collection chamber is equipped with gas access；

Absorbent assembly is located in the gas collection room, and the absorbent assembly has the mercury absorbing material；

Gas vent.

The absorbent assembly also has PTFE film.

The absorbent assembly is absorption mesh or baffle.

The baffle is made of substrate and absorbed layer, and the absorbed layer is the activated carbon fibre.

The substrate is at least two layers, and the absorbed layer is set between adjacent two substrates.

The absorbent assembly be it is multiple, multiple absorbent assemblies perpendicular to horizontal direction parallel be arranged.

Absorption chamber is provided in the gas collection room, the absorption chamber is connected to the gas collection chamber, institute Gas vent is stated to be connected to the absorption chamber.

The absorbent assembly is set at least one inner wall of the absorption chamber.

The absorbent assembly is at least one inner wall of absorption chamber.

The venthole being connected to the gas collection chamber is offered on the absorption chamber side wall.

The air-permeable, hydrophobic layer is PTFE air-permeable, hydrophobic membrane.

The absorption mesh, which is negative, is loaded with the activated carbon fibre net of the metal and sulfate.

The gas vent is connected with mercury detection device.

A kind of active coke regeneration device, including activated coke supply unit, activated coke regenerator further include that the mercury is collected Device, the gas access of the mercury collection device are connected with the outlet of the regeneration stripping gas of the activated coke regenerator.

A kind of activated coke regeneration mercuryvapour recovery process using the active coke regeneration device comprising following step It is rapid:

Regeneration treatment is carried out to activated coke；

In gaseous environment, it can be reacted the gas of regeneration generation and by the metal contact that mercury dissolves；

Export gas.

Contain ammonia and carbon monoxide in the gaseous environment.

The temperature of the regeneration gas is 50~70 DEG C.

Water content is not higher than 1wt% in the regeneration gas.

Technical solution provided by the invention has the advantages that

1. mercury absorbing material provided by the invention, by initiatively using the work for having loaded sulfate or potassium sulfate and silver Property Carbon fibe, can to the mercuryvapour in gas carry out selective absorption, adsorption process cleaning green, no exhaust gas, waste water etc. two Secondary pollutant generates.Mercury absorbing material provided by the present invention, the mercury vapour capableing of in the absorption gas to be processed of selectivity, warp This mercury absorbing material treated activated coke regeneration gas, does not influence the subsequent processing to other substances in gas, can be with a variety of gas Body treatment process is used in combination.Mercury absorbing material provided by the invention is especially suitable for the recycling of mercury in activated coke regeneration gas.

The mercury absorbing material of adsorption saturation is reused, simultaneously by carrying out heating desorption, that is, renewable, additionally it is possible to be returned Receive pure mercury, it is entirely avoided the secondary pollution of mercury.

2. mercury collection device provided by the invention can carry out different absorbed layer designs, i.e., according to actual requirement of engineering The absorption inner cavity of package mercury absorbing material can be selected, and baffle disposed in parallel layer by layer can be selected, the two design Realization device modularization is convenient for changing absorbed layer, and is respectively provided with treatment effeciency height and absorbs more thorough advantage.Pass through Air-permeable, hydrophobic layer is set on absorbent assembly, can further promote the selective absorbing of mercury, cooperates preferred regeneration solid/liquid/gas reactions 55 DEG C of temperature, mercury concentration is down to 1 μ g/m in the regeneration gas that can make that treated³。

Detailed description of the invention

In order to illustrate more clearly of the technical solution in the specific embodiment of the invention, specific embodiment will be retouched below Attached drawing needed in stating is briefly described, it should be apparent that, the accompanying drawings in the following description is some realities of the invention Mode is applied, it for those of ordinary skill in the art, without creative efforts, can also be attached according to these Figure obtains other attached drawings.

Fig. 1 is the mercury collection device structural profile illustration in embodiment；

Fig. 2 is the inner cavity schematic diagram in embodiment；

Fig. 3 is inner cavity and mercury absorbent material structure schematic diagram in embodiment.

The reference numerals are as follows in above-mentioned attached drawing:

1- mercury collection device, the inner cavity 2-, 3- mercury absorbing material, 4-PTFE film, the gas access 11-, 21- gas vent.

Specific embodiment

Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.In addition, invention described below different embodiments Involved in technical characteristic can be combined with each other as long as they do not conflict with each other.

In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term " on ", "inner" is base In orientation or positional relationship shown in the drawings, it is merely for convenience of description of the present invention and simplification of the description, rather than indication or suggestion Signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to hair Bright limitation.

The present invention provides a kind of mercury collection device, structure is in detail as shown in Figure 1.It will be noted from fig. 1 that the collection fills It sets with inner cavity, the inner cavity is gas collection chamber, gas access is provided in gas collection chamber, for being passed through gas to be processed Body, be passed through in the present embodiment be ammonia regeneration method activated coke regeneration gas.For the setting position of the gas access, Ke Yigen Factually border engineering demand is configured, and both can be set in the top of recyclable device it is also contemplated that being arranged on its side wall.This Outside, gas vent is additionally provided on recyclable device.For the ease of gas circulation or accelerate its circulation, preferably gas vent Position connects negative pressure device.

It is provided with absorbent assembly in gas collection room, the setting of the absorbent assembly can be used for absorbing activated coke regeneration Gas, in the present embodiment, the absorbent assembly are absorption mesh or baffle.

Wherein, for the setting of absorption mesh, from material angle, selection has loaded sodium sulphate and the gold suitable for being dissolved in mercury Belong to, the activated carbon fibre of gold, silver, potassium, sodium, tin, zinc etc., wherein the weight ratio of sulfate and the metal are as follows: (1:15~ 1:5).In present embodiment, using the activated carbon fibre for first loading sodium sulphate back loading silver.From structural point, absorption mesh can It is made with directlying adopt activated carbon fibre, sandwich structure can also be used, the activated carbon fibre after load is sandwiched in two and is breathed freely Between net or ventilated membrane.From the point of view of position is set, it can be set on the inner wall of the gas collection chamber, it can also be multiple groups Part is arranged in parallel in gas collection room, and the surrounding of the component can be tightly connected with the inner wall of gas collection chamber, with guidance Gas passes through the absorbent assembly；The surrounding of the component can not also be tightly connected with the inner wall of gas collection chamber, guide gas Body is in gas collection circulating inside.

Setting to baffle can be made of from structural point substrate and absorbed layer, the material of the absorbed layer and institute The activated carbon fibre after load of the same race can be selected by stating absorption mesh.The substrate can for one or more, when select two layers or with When upper substrate, the absorbed layer is sandwiched between two substrates as vertical plate, as preferred embodiment, on the vertical plate It is provided with venthole.

As a kind of preferred embodiment of the present embodiment, it is additionally provided with absorption chamber in the gas collection room, it is described Absorption chamber is connected with gas collection chamber, and several absorbent assemblies are additionally provided in the absorption chamber, the absorbent assembly It, can also be directly as the inner wall of absorption chamber to be arranged on the inner wall of the absorption chamber.As an implementation, may be used The absorption chamber is designed as to the cylindric inner cavity with cribriporal, selects absorption mesh as absorbent assembly, and be close to It is covered in except cylindric inner cavity.The absorption chamber has gas vent, and treated activated coke regeneration gas is gone out by gas Mouth leaves gas collection chamber.

More preferentially, one layer of PTFE film can be covered again outside the absorption mesh.

Mercury collection device of the present invention at work, firstly, 50~70 DEG C of the activated coke regeneration gas containing mercury is logical Cross gas access in gas collection chamber to enter, then be contacted with the absorbent assembly being arranged in gas collection room, mercury vapour with Absorption, dissolution occur for the metal loaded in activated carbon fibre.When being provided with absorption chamber in gas collection room, in negative pressure device Under the action of regeneration gas enter by the mercury absorbing material that is coated on outside inner cavity, then by the venthole in absorption chamber cavity wall Mercury collection device is finally left by gas vent in inner cavity.When through the activated carbon fibre of overload sulfate and metal, flue gas In mercury react with metal, and be deposited in activated carbon fibre, when monitoring personnel is examined by the mercury detection device of gas vent Mercury concentration is measured higher than 6 μ g/m³When, the collection efficiency to guarantee mercury is replaced to absorbent assembly, the mercury replaced absorbs Component is i.e. renewable by heating.When the absorbent assembly also has air-permeable, hydrophobic layer, water collection can also be set Device.

When applying mercury collection device provided by the invention in activated coke regeneration technology, the gas of mercury collection device enters Mouth is connected with the outlet of the regeneration stripping gas of activated coke regenerator.

Experimental example 1

Use above-mentioned preferred mercury collection device respectively to mercury concentration for 70 μ g/m³With 50 μ g/m³Activated coke regeneration gas into Row processing, the temperature of regeneration gas are 55 DEG C, and select the activated carbon fibre for only having loaded silver as control, and to treated again Mercury content is detected in anger, and result is as follows:

Experimental example 2

Use above-mentioned preferred mercury collection device respectively to mercury concentration for 70 μ g/m³With 50 μ g/m³Activated coke regeneration gas into Row processing, the temperature of regeneration gas are 40 DEG C, and select the activated carbon fibre for only having loaded silver as control, and to treated again Mercury content is detected in anger, and result is as follows:

Experimental example 3

Use above-mentioned preferred mercury collection device respectively to mercury concentration for 70 μ g/m³With 50 μ g/m³Activated coke regeneration gas into Row processing, the temperature of regeneration gas are 80 DEG C, and select the activated carbon fibre for only having loaded silver as control, and to treated again Mercury content is detected in anger, and result is as follows:

Experimental example 4

Using above-mentioned preferred mercury collection device, but the activated carbon fibre for first loading silver-colored back loading sodium sulphate is selected, point Other is 70 μ g/m to mercury concentration³With 50 μ g/m³Activated coke regeneration gas handled, the temperature of regeneration gas is 60 DEG C, and is selected only It has loaded the activated carbon fibre of silver to detect as control, and to mercury content in treated regeneration gas, result is as follows:

In above-listed each table, the absorbing material is supported active Carbon fibe, and the specific material of load is listed in table.It can be with Find out, the mercuryvapour in activated coke regeneration gas can be preferably absorbed using mercury collection device provided by the invention.In addition, using After mercury recyclable device provided by the present invention handles activated coke regeneration gas, charcoal ablation is hardly happened.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or Variation is still in the protection scope of this invention.