A kind of impact type waste gas absorption tower of copper smelting by pyrometallurgy
Technical field
This utility model belongs to copper metallurgy technical field of waste gas treatment, particularly relates to the impact type waste gas absorption tower of a kind of copper smelting by pyrometallurgy.
Background technology
Copper smelting by pyrometallurgy includes the operations such as roasting, melting, blowing, refine, with copper sulfide concentrate as primary raw material.Roasting divides partial oxidizing roasting and dead roasting (" dead roast "), all or part of sulfur in removing concentrate, removes the volatile impurity such as part arsenic, antimony simultaneously.Melting is mainly matte smelting, it is therefore an objective to make the part ferrum in copper concentrate or roasted ore aoxidize, and removes with the slag making such as stone-like pulse, flux, the matte that output cupric is higher.Refine divides pyro-refining and electrorefining.Blister copper essence divides pyro-refining and electrorefining.Pyro-refining is to utilize some impurity that the affinity of oxygen is more than copper, and its oxide is insoluble in character such as copper liquid, is removed by oxidative slagging or volatilization.Can produce a large amount of flue gas baking, during melting and pyro-refining, often contain sulfur dioxide lamp harmful gas in flue gas, for environmental protection and energy-conservation, and fume treatment also serves as our one production process.
Impact type leaching absorption tower is the core apparatus of wet process of FGD, common mainly iron spray column, inside does preservative treatment.In practical application, usually there is desulfuration efficiency low and the problem of job insecurity occurs and maintenance inconvenience, low to the noble metal response rate in waste gas, cause waste greatly, in the case of the requirement of current energy-saving and emission-reduction and standard improve constantly, a lot of desulphurization systems can not meet the needs of enterprise, the more efficient and reliable technology of market demand.
Utility model content
In view of this, the impact type waste gas absorption tower of a kind of copper smelting by pyrometallurgy of necessary offer, reach to waste gas cleaning thoroughly, cleaning efficiency high effect.
For the defect overcoming prior art to exist, this utility model provides techniques below scheme:
nullA kind of impact type waste gas absorption tower of copper smelting by pyrometallurgy,Including the left eluting column being arranged side by side and right eluting column,And material is fiberglass,A described left side、Right eluting column all height are 12 meters,0.2 times of a diameter of height,Tower body wall thickness is 2 centimetres,Bottom in left eluting column is equipped with cleanout fluid,A gas buffer tank it is provided with by described left eluting column,It is provided with appendix on this gas buffer tank,This appendix oblique cutting enters in described cleanout fluid,Multiple packing layer it is disposed with from the bottom up in described left eluting column,The top of each packing layer is provided with shower,The end of its this shower is provided with shower nozzle,The other end of described shower extends to the liquid case outside described left eluting column,The upper end of left eluting column connects the spiral cooling tube having fiberglass to make,The other end of this spiral cooling tube is connected to the bottom of described right eluting column,In the way of identical with left eluting column, packing layer and shower it is provided with in right eluting column,The top of described right eluting column is provided with escape pipe,The lower section of escape pipe is provided with demister,This demister is fixing with the inwall of described right eluting column to be connected.
Preferably, described baffle-box being additionally provided with muffler, the other end of this muffler is connected with described left eluting column, and on-position is positioned at the top of described cleanout fluid liquid level.
Preferably, the angle that described appendix and horizontal plane are formed is 20 °.
Compared with prior art, the beneficial effects of the utility model have employed multiple step and clear up waste gas, and scale removal process extends relatively so that the cleaning of waste gas is more thorough, in hgher efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of the impact type waste gas absorption tower of a kind of copper smelting by pyrometallurgy of this utility model.
Specific examples below will further illustrate this utility model in conjunction with above-mentioned accompanying drawing.
Detailed description of the invention
Below with reference to accompanying drawing, the utility model is described in further detail.
nullSee Fig. 1,A kind of impact type waste gas absorption tower of copper smelting by pyrometallurgy,Including the left eluting column 1 being arranged side by side and right eluting column 2,And material is fiberglass,A described left side、Right eluting column all height are 12 meters,0.2 times of a diameter of height,Tower body wall thickness is 2 centimetres,Bottom in left eluting column 1 is equipped with cleanout fluid 1a,Described left eluting column 1 is other is provided with a gas buffer tank 4,It is provided with appendix 4a on this gas buffer tank 4,This appendix 4a oblique cutting enters in described cleanout fluid 1a,Multiple packing layer 6 it is disposed with from the bottom up in described left eluting column 1,The top of each packing layer 6 is provided with shower 3b,The end of its this shower 3b is provided with shower nozzle 3a,The other end of described shower 3b extends to the liquid case 3 outside described left eluting column 1,The upper end of left eluting column 1 connects the spiral cooling tube 4 having fiberglass to make,The other end of this spiral cooling tube 4 is connected to the bottom of described right eluting column 2,In the way of identical with left eluting column 1, it is provided with packing layer 6 and shower 3b in right eluting column 2,The top of described right eluting column 2 is provided with escape pipe 5,The lower section of escape pipe 5 is provided with demister 7,This demister 7 is fixing with the inwall of described right eluting column 2 to be connected.
Preferably, described baffle-box 4 being additionally provided with muffler 4b, the other end of this muffler 4b is connected with described left eluting column 1, and on-position is positioned at the top of described cleanout fluid 1a liquid level.
Preferably, the angle that described appendix 4a and horizontal plane are formed is 20 °.
Waste gas is first passed in baffle-box 4, carries out cleaning for the first time in being passed into cleanout fluid 1a via the appendix 4a tilted in baffle-box 4.The cleanout fluid 1a that waste gas after cleaning for the first time is sprayed by shower nozzle 3a by shower 3b after continuing up to come into packing layer 6 cleans for the second time carrying out.Waste gas after second time is cleaned carries out third time and cleans in arrive right eluting column 2 again after spiral cooling tube 4 cools down, complete the waste gas after third time is cleaned after demister 7 processes, then discharged by the escape pipe 5 on right eluting column 2 top.
The effect of muffler 4b and baffle-box 4 is to be possible to prevent the cleanout fluid 1 bottom left eluting column 1 to pour in down a chimney.
The explanation of above example is only intended to help to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; on the premise of without departing from this utility model principle, it is also possible to this utility model is carried out some improvement and modification, these improve and modification also falls in this utility model scope of the claims.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this utility model.Multiple amendment to these embodiments will be apparent from for those skilled in the art, and generic principles defined herein can realize in the case of without departing from spirit or scope of the present utility model in other embodiments.Therefore, this utility model is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.