A kind of oxidation air distribution device for the desulfurization of calcium method
Technical field
The utility model relate to a kind of in desulfuration absorbing tower the oxidation air distribution device for desulfurization by lime gypsum method.
Background technology
In lime stone desulfurization of gypsum technique, in order to obtain the good desulfurizing byproduct gypsum product of quality, must carry out forced oxidation to the intermediate product calcium sulfite of producing, oxidation efficiency is higher, and gypsum qualitt is just better.What application was maximum at present is to adopt forced oxidation on the spot, can save occupation of land like this, and system layout is also more succinct.Oxidation air is imported to tank body zoneofoxidation, and it is different and have a multiple forced oxidation device to make it the method for disperseing, but two kinds of modes that adopt are the most generally pipe network atomizings, claim again fixed type air sprayer (Fixed Air Sparger, FAS) and agitator and air gun combined type (Agitator Air Lance Assembies, ALS).
FAS is certain depth (being conventionally greater than 3m) in retort or in the bottom of tank body, on whole tank body cross section, uniform some dry gas distribution supervisors, have directly and open many fumaroles on supervisors, also have on supervisor and fill branched pipe, make nozzle distribute more evenly, but can increase air drag.More even for oxidation air is distributed on whole desulfurizing tower cross section, great majority all adopt the form of the upper dress of supervisor arm.In actual motion, often there is the situation of the gentle quantity not sufficient of air pressure in arm end, although therefore air spray orifice is arranged very evenly, but the tolerance that each nozzle passes through is not necessarily even, finally cause the distribution consistency degree variation of oxidation air on desulfurizing tower slurry pool cross section, there is the not good situation of oxidation effectiveness in regional area, the quality of desulfurated plaster can not get ensureing.
Summary of the invention
Technical problem for above-mentioned existence, it is a kind of for calcium method desulfurization oxidation air distribution device that the utility model provides, can make tolerance and the air pressure of each air spray orifice circulation more even, stable, thereby improve the oxidation effectiveness of calcium sulfite and the utilization rate of oxidation air.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of for calcium method desulfurization oxidation air distribution device, comprise air inlet pipe, oxidation fan, oxidation air pipeline; Described air inlet pipe is connected with oxidation fan air inlet; Described oxidation air pipeline one end is connected with oxidation fan air outlet, and the other end is connected with the air feed supervisor in extending into absorption tower; On described air feed supervisor, be provided with some gas manifolds, on described gas manifold, have some air jet holes; Also comprise a tube connector, described tube connector is communicated with the end of air feed supervisor's front end and end and gas manifold.
As a kind of improvement, described tube connector is annular, and arranges along absorption tower inwall.Make pipeline distribution each corner in the plane of absorption tower, the distribution of oxygen is more even.
As a kind of improvement, on described oxidation air pipeline, flowmeter, pressure transmitter and thermometer are housed.The setting of flowmeter, pressure transmitter and thermometer can be observed flow, the pressure and temperature of fan outlet oxidation air easily, is convenient to grasp the basic parameter of oxidation air.
As a kind of improvement, fresh water (FW) cooling and flusher are housed on described oxidation air pipeline.The setting of fresh water (FW) cooling and flusher, one side can reduce the temperature of the high temperature air after blower fan, improves the solubility of oxygen in slurries, thereby improves oxidation efficiency; Can be immersed in oxidation air gas distributing pipeline and the spray orifice in slurries by periodic flushing on the other hand, prevent fouling and obstruction.
As a kind of preferred, described tube connector diameter is greater than gas manifold diameter.Enough rate of air circulation to be provided and to play the effect of voltage stabilizing.
Usefulness of the present utility model is: have the oxidation air distribution device of said structure, for providing desulfurization by lime gypsum method slurries forced oxidation required oxidation air, gas flow and the pressure of each air spray orifice of flowing through are more even, stable; Oxidation air is distributed on desulfurizing tower slurry pool cross section more even, be conducive to improve the utilization rate of oxidation efficiency and the oxidation air of calcium sulfite, thereby improve quality of desulphurization gypsum, reduce oxidation fan power consumption simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Mark in figure: 1 air inlet pipe, 2 oxidation fans, 3 oxidation air pipelines, 4 thermometers, 5 pressure transmitters, 6 flowmeters, 7 fresh water (FW) coolings and flusher, 8 air feed supervisors, 9 tube connectors, 10 gas manifolds, 11 absorption towers.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
As shown in Figure 1:
The utility model comprises air inlet pipe 1, oxidation wind 2 machines, oxidation air pipeline 3; Described air inlet pipe 1 is connected with oxidation fan 2 air inlets; Described oxidation air pipeline 3 one end are connected with oxidation fan 2 air outlets, and the other end is connected with the air feed supervisor 8 in extending into absorption tower 11; On described air feed supervisor 8, be provided with some gas manifolds 10, on described gas manifold 10, have some air jet holes; Also comprise a tube connector 9, described tube connector 9 is communicated with the end of air feed supervisor 8 front end and end and gas manifold 10.The best diameter of tube connector 9 is greater than gas manifold 10 diameters, and is annular, the 11 inwall settings along absorption tower.Flowmeter 6, pressure transmitter 5 and thermometer 4 and fresh water (FW) cooling and flusher 7 are housed on described oxidation air pipeline 3.
During operation, oxidation air is provided by oxidation fan 2, through oxidation air pipeline 3, carries, and fresh water (FW) cooling flusher 7 water sprays of installing on oxidation air pipeline 3 reduce the temperature of oxidation air, are beneficial to improve the solubility of oxygen in slurries; Enter afterwards the interior air feed supervisor 8 in absorption tower 1, be redistributed to tube connector 9 and each gas manifold 10, due to the existence of tube connector 9, shortened the air feed distance of arm end, supplemented gas flow and gas pressure, formed a voltage stabilizing system, made air pressure and the tolerance of each spray-hole ejection more even.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.