CN102643939A - Method and device for supplying constant-humidity air to blast furnace blowers - Google Patents
Method and device for supplying constant-humidity air to blast furnace blowers Download PDFInfo
- Publication number
- CN102643939A CN102643939A CN2011100419806A CN201110041980A CN102643939A CN 102643939 A CN102643939 A CN 102643939A CN 2011100419806 A CN2011100419806 A CN 2011100419806A CN 201110041980 A CN201110041980 A CN 201110041980A CN 102643939 A CN102643939 A CN 102643939A
- Authority
- CN
- China
- Prior art keywords
- temperature
- air
- blast furnace
- humidity
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Drying Of Gases (AREA)
Abstract
The invention provides a method and a device for supplying constant-humidity air to a blast furnace blower and belongs to the technical field of blast furnace blowers. The method comprises the following steps of: humidifying or dehumidifying and carrying out heat exchange before the air enters the blower. The method is characterized in that before the air enters the blower, the air and liquid water with a relevantly constant temperature are in direct contact. The device comprises a water supply device, a power device and a control device, and is characterized by being further provided with a temperature-humidity converting tower in direct contact with the liquid water, which is used for enabling the air and the temperature to be relevantly constant. The method and device provided by the invention are applicable to supplying the air with the relevantly constant lower temperature and humidity, especially the humidity, to the blast furnace blower perennially around the clock. The method and the device are very good for energy conversation of a blast furnace and stable and smooth furnace condition, so as to improve the productivity of the blast furnace.
Description
Technical field
The present invention relates to a kind of method and device that the air of constant humidity is provided to blast furnace blowing engine, belong to the technical field of blast furnace ironmaking, particularly blast furnace blast.
Background technology
The quality of blast furnace blast is concerning a series of important indicators such as stability, output and smelting cost of the coke ratio of blast furnace, energy consumption, production process.
(Xiang Zhongyong Wang Xiao stays etc. and to write according to " blast furnace design---iron-smelting process design theory with put into practice "; Metallurgical industry press publishes; November in 2007 the 1st edition) a book introduction: the wet blast of blast furnace and dehumidified blast technology are to have occupied dominant position by the dehumidified blast technology through for many years game at present.Though the result of these two kinds of technology competitions is so,, the advantage that the wet blast technology is declared does not receive substantial negative.
In the technical field of blast furnace blast, the subject matter that prior art exists comprises:
1. even occupied under the situation of dominant position in the dehumidified blast technology, advocate that wet blast technology and the both sides that advocate the dehumidified blast technology have certain one-sidedness, they are stressed only limits to advantage separately, and has ignored the other side's advantage.
2. by the realization of sure, existing dehumidified blast technology, need to consume a large amount of high-grade energy---electric energy, although used up this part electric energy is able to again return from the consumption reduction of blower motor, even surplus to some extent also.
3. be the device of the heat exchange of indirect dehumidification or humidification and routine owing to what adopt, the volume of this device is big, cost is high, or the like.
Summary of the invention
The object of the invention; Be that a kind of method and device that the air of constant humidity is provided to blast furnace blowing engine will be provided; Through this method and device, realize stablizing conditions of blast furnace, joint Jiao, reduce the purpose that the blast furnace total carbon consumes, improves furnace processor and reduces the blast furnace blowing engine power consumption.
The technical problem that the present invention will solve comprises:
1. propose the notion of blast furnace constant humidity blast and solution is provided.
2. how to realize providing temperature and humidity all relative constant air to blast furnace blowing engine.
3. how the set(ting)value of described humidity to be adjusted according to the needs of smelting technology.
4. offer all devices of relative constant air of blast furnace blowing engine supply constant humidity, particularly temperature and humidity.
One of basic design of the present invention is: a kind of method that the air of constant humidity is provided to blast furnace blowing engine; Comprise the step of carrying out humidification and/or dehumidification and heat exchange before the air admission gas blower; It is characterized in that: before the air admission gas blower, relative constant liquid water with temperature directly contacts.Here said " constant humidity " is meant: the airborne water cut that gets into blast furnace blowing engine is a stationary value, but allows it in the tolerance zone of setting, to have certain fluctuating quantity; Simultaneously, " stationary value " of above-mentioned so-called humidity, preferably the best demand according to the technology of smelting sets.Here said " the relative constant liquid water of temperature " is meant: 1. the temperature of liquid water is by design code, and is metastable, so that utilize water saturation vp under this temperature to realize being sent to water cut stable of the air of blast furnace blowing engine; Certainly, also allow it in the tolerance zone of setting, to have certain fluctuating quantity here, this fluctuating quantity can be that nature forms, and also can be artificial control consciously, or its two combination causes.2. the set(ting)value of water temperature at first is to set according to the humidity requirement of air-supply; But this temperature value is once confirming that it becomes a stationary value again, the implication that Here it is so-called " temperature is constant relatively ".And this moment, the AT that is sent to blast furnace is implied and has been confirmed under the condition that the exchange system of humidity is determined.3. sometimes, described liquid water can also be meant lip-deep fusion water attached to ice cube etc.It is multiple to realize that method that above-mentioned air and liquid water directly contact has, and for example, can in the spray-type void tower, carry out; Can in packing tower, carry out, special needs to be pointed out is, can adopt the filler of ice cube as described packing tower; Can also be in the Venturi meter spray equipment, to carry out etc.
The temperature of the relative constant liquid water of described temperature can be confirmed in≤18 ℃ scope; Can in≤15 ℃ scope, confirm; Can in≤12 ℃ scope, confirm; Can in≤10 ℃ scope, confirm; Can in≤8 ℃ scope, confirm; Can in≤6 ℃ scope, confirm; Can in≤4 ℃ scope, confirm; Can also in≤2 ℃ scope, confirm etc.And be recommended in≤confirm in 12 ℃ the scope.
The temperature of the relative constant liquid water of described temperature can also>=-5 ℃ and≤confirm in 18 ℃ the scope;>=-5 ℃ and≤confirm in 15 ℃ the scope;>=-2 ℃ and≤confirm in 17 ℃ the scope;>=-2 ℃ and≤confirm in 15 ℃ the scope;>=-1 ℃ and≤confirm in 17 ℃ the scope;>=0 ℃ and≤confirm in 15 ℃ the scope;>=-5 ℃ and≤confirm in 12 ℃ the scope;>=-2 ℃ and≤confirm in 10 ℃ the scope;>=0 ℃ and≤confirm in 10 ℃ the scope;>=-2 ℃ and≤confirm in 8 ℃ the scope;>=0 ℃ and≤confirm in 8 ℃ the scope;>=-3 ℃ and≤confirm in 6 ℃ the scope;>=0 ℃ and≤confirm in 6 ℃ the scope;>=-2 ℃ and≤confirm in 4 ℃ the scope;>=-5 ℃ and≤confirm in 2 ℃ the scope etc.And be recommended in>=0 ℃ and≤confirm in 12 ℃ the scope.What be necessary to explain is, makes water non-icing method when being lower than 0 ℃, except the method that can utilize the flowability that strengthens water, can also in water, add non-volatility, non-corrosive solute, with the freezing temperature that reduces water etc.
The source of the relative constant liquid water of described temperature, it can utilize the absorption refrigeration unit to produce; Also can obtain from deep water; Acquisition mode as for concrete also has variety; For example, can from darker freshwater lake or deep-well, directly extract, can also utilize benthos to maintain 4 ℃ of left and right sides cold water sources throughout the year and obtain liquid water (heat exchanger capable of using in case of necessity) etc.In addition, the relative constant liquid water of described temperature can also utilize the frozen water method of mixing to produce; When the relative constant liquid water of described temperature is when utilizing the frozen water method of mixing to produce, frozen water mixes used ice, preferably utilizes natural low temperature to obtain in the winter time, to make full use of the temperature difference resource between season; Can also be to utilize the electric energy of electrical network the lowest point period to produce, this will help the balance of electrical network and obtain indirect energy saving, particularly reduces the effect of running cost.
Two of basic design of the present invention is: a kind of device of realizing the method for the air that constant humidity is provided to blast furnace blowing engine of the present invention; Comprise feedway, PWR PLT and the gear of water, it is characterized in that: it also is equipped with temperature, the humidity conversion tower that the relative constant liquid water of air and temperature is directly contacted." feedway of water " described here provides and/or conveying solid substance water promptly usually said ice cube except providing and/or carry the liquid water on the ordinary meaning, also comprising.The implication of " the relative constant liquid water of temperature " described here; Also comprise: 1. the temperature of liquid water is by design code; And be metastable, so that utilize water saturation vp under this temperature to realize being sent to water cut stable of the air of blast furnace blowing engine; Certainly, also allow it in the tolerance zone of setting, to have certain fluctuating quantity here, this fluctuating quantity can be that nature forms, and also can be artificial control consciously, or its two combination causes.2. the set(ting)value of water temperature at first is to set according to the humidity requirement of air-supply, and therefore, it certainly exists the scope of a value; But this temperature value is once confirming that it becomes a stationary value again, the implication that Here it is so-called " temperature is constant relatively ".And this moment, the AT that is sent to blast furnace is implied and has been confirmed under the condition that the exchange system of humidity is determined.3. sometimes, described liquid water can also be meant lip-deep fusion water attached to ice cube etc.
The temperature of the relative constant liquid water of described temperature can be confirmed in≤18 ℃ scope; Can in≤15 ℃ scope, confirm; Can in≤12 ℃ scope, confirm; Can in≤10 ℃ scope, confirm; Can in≤8 ℃ scope, confirm; Can in≤6 ℃ scope, confirm; Can in≤4 ℃ scope, confirm; Can also in≤2 ℃ scope, confirm etc.And be recommended in≤confirm in 12 ℃ the scope.
The temperature of the relative constant liquid water of described temperature can also>=-5 ℃ and≤confirm in 18 ℃ the scope;>=-5 ℃ and≤confirm in 15 ℃ the scope;>=-2 ℃ and≤confirm in 17 ℃ the scope;>=-2 ℃ and≤confirm in 15 ℃ the scope;>=-1 ℃ and≤confirm in 17 ℃ the scope;>=0 ℃ and≤confirm in 15 ℃ the scope;>=-5 ℃ and≤confirm in 12 ℃ the scope;>=-2 ℃ and≤confirm in 10 ℃ the scope;>=0 ℃ and≤confirm in 10 ℃ the scope;>=-2 ℃ and≤confirm in 8 ℃ the scope;>=0 ℃ and≤confirm in 8 ℃ the scope;>=-3 ℃ and≤confirm in 6 ℃ the scope;>=0 ℃ and≤confirm in 6 ℃ the scope;>=-2 ℃ and≤confirm in 4 ℃ the scope;>=-5 ℃ and≤confirm in 2 ℃ the scope etc.And be recommended in>=0 ℃ and≤confirm in 12 ℃ the scope.
Described temperature, humidity conversion tower can be packing towers, also can be spray columns.When described temperature, when humidity conversion tower is packing tower, can also adopt the filler of ice cube as packing tower.
The feedway of the relative constant liquid water of described temperature can be a kind of feedway that utilizes ice, water method of mixing to obtain the relative constant liquid water of temperature, also can in the feedway of the relative constant liquid water of this temperature, use the absorption refrigeration unit.
What be necessary to particularly point out is, the present invention can only carry out unidirectional dehumidification operation, promptly only carries out operation in summer or spring, summer, autumn, and stops operation in severe cold, when dry and cold.At this moment, the function of " air of constant humidity is provided to blast furnace blowing engine " that the present invention had does not receive substantial restriction, only is the period of its work changes to some extent; This working mechanism does not hinder the present invention in " air of constant humidity is provided to blast furnace blowing engine " function that other periods had, and is appreciated that under certain condition, having interrupted the operation of this function.
Major advantage of the present invention is:
1. it utilizes the water saturation vp to realize the humidity adjustment, and its humidity adjustment is that automatic bidirectional carries out: when the dividing potential drop of airborne moisture was higher than the water saturation pressure under the design temperature, it just carried out dehumidification automatically; Otherwise it will add wet trade automatically; Because the thermal capacity of water is big and heat-exchange capacity is strong, therefore, it has higher temperature adjustment, the efficient of damping again.Because it has two-way self-regulating function, therefore, no matter the humidity of air is height or low; It can both be throughout the year, double tides for gas blower provides temperature and humidity, humidity particularly, lower and constant air; Be very beneficial for stable, the direct motion of the working of a furnace, improve the production capacity of blast furnace.
2. when the air of constant humidity being provided for blast furnace, can also make the air that gets into gas blower have lower temperature, under the constant condition of effective wind rate, can significantly reduce the energy consumption of blast furnace blowing engine.
3. on the one hand, the temperature and humidity, particularly humidity of the air that the present invention provides for gas blower, set(ting)value, have modifiability very high, very convenient, very economical; On the other hand, be complementary, necessarily have the optimum value of air blast water cut with the smelting technology of blast furnace; Combination of the two through it can realize constantization of air blast water cut under optimum regime comparatively economically.
4. when adopting absorption process to produce the lower exchange water of temperature, can utilize the energy of low-quality, for example depleted hot water and/or exhaust steam etc., thus can practice thrift a large amount of high-grade energies, electric energy etc. for example; Particularly when utilizing natural water at low temperature or natural ice to realize above-mentioned purpose, its energy-saving effect is self-evident especially.
5. it is that utilize air and water at low temperature direct contacts the exchange that realizes temperature and humidity and adjustment, and therefore, the equipment that its uses is simple, size is little, cost is low.
6. when it utilized the frozen water method of mixing to produce water at low temperature, its system was very simple, and equipment volume is little, cost is low.
7. it can utilize the storageability of ice, produces ice in the electrical network the lowest point period with electric energy in advance, and then ice is changed into water at low temperature, the effect that this will help the balance of electrical network and obtain indirect energy saving.
8. because the needs of winter heating; The waste heat of Iron And Steel Plant is supplied usually comparatively nervous in the winter time; Then have more than neededly in summer, this solution is then big to the demand of waste heat in summer, and is but relatively very little in the winter time more; Help realizing the thermal equilibrium of iron and steel enterprise in Various Seasonal, thereby have the higher energy-conservation and effect that reduces cost.
Description of drawings
7 pages of drawings attacheds of the present invention, totally 7 width of cloth.Wherein:
Fig. 1 is the synoptic diagram of embodiments of the invention 1.
Fig. 2 is the synoptic diagram of embodiments of the invention 2.
Fig. 3 is the synoptic diagram of embodiments of the invention 3.
Fig. 4 is the synoptic diagram of embodiments of the invention 4.
Fig. 5 is the synoptic diagram of embodiments of the invention 5.
Fig. 6 is the synoptic diagram of embodiments of the invention 6.
Fig. 7 is the synoptic diagram of embodiments of the invention 7.
Embodiment
Embodiment of the present invention will combine embodiment and accompanying drawing to describe.Because method and apparatus is inseparable, therefore, it is combined explain.
Embodiment 1, and is as shown in Figure 1.
In Fig. 1, the gas blower of 1 expression blast furnace.The air filtration unit of 2 expression blast furnace blowing engines.3 expression temperature, humidity conversion tower.4 expression water at low temperature producers.
In temperature, humidity conversion tower 3, comprise tank 5, the shower on top and assembly 6, water droplet 7 and the mist eliminator 8 of disperse in this tower of shower nozzle of its bottom.The bottom of this tower also is provided with wash water valve 9 etc.
In water at low temperature producer 4, comprise shower nozzle 11 and on the rocks mouthful 15 on the ice cube 12 placed on the shelf with holes 13, shelf 13 of tank 14, the bottom of its bottom, top and the chute 16 of ice etc.
Can increase the characteristics of heat-exchange capacity when utilizing frozen water to mix, also suggestion makes the flow profile 27 in the water at low temperature producer 4 be higher than shelf 13.
In the present embodiment, pump 10 and pump 17 also be equipped with; Also be provided with valve 20, valve 21 and valve 22; In addition, also be provided with input channel 23, the moisturizing of steam and/or hot water or put (row) aquaporin 24.
The groundwork process of present embodiment comprises:
Behind air process air filtration unit 2, temperature, humidity conversion tower 3 (containing mist eliminator 8) and the gas blower 1 in the atmosphere, be sent to blast furnace via pipeline 19 (through hotblast stove).Certainly, the mist eliminator 8 here might not non-ly be arranged on the inside of temperature, humidity conversion tower 3, also can be arranged to be independent of the single component of temperature, humidity conversion tower 3, and it is better to make it remove fog effect.
In temperature, humidity conversion tower 3, the relative constant liquid water with temperature of air directly contacts, and in the present embodiment, said process carries out in spray column; Simultaneously, the temperature of described liquid water is approximately 0 ℃.
When air passed through temperature, humidity conversion tower 3, its operating mode should divide two kinds of situation to explain:
(1) operating mode of dehumidification.
For example, higher and relatively moister summer in AT is when air gets into temperature, humidity conversion tower 3 through air filtration unit 2 back; Run into descend from cat head spray, temperature approximates 0 ℃ water droplet and/or water smoke; On the one hand, air will be cooled, simultaneously; The contained steam that surpasses the water saturation pressure under this temperature also will be absorbed by this cold water in the air, thereby obtain not only to lower the temperature but also the effect of dehumidification.Its ultimate principle is: when temperature and pressure one timing, the water saturation vp also is certain.This just means, when the dividing potential drop of water in air steam during greater than the water saturation vp under this condition, must implement the dehumidification operation.Be accompanied by the carrying out of dehumidification and heat exchanging process, temperature, humidity conversion tower 3 temperature interior, that fall into the water of tank 5 will rise, and therefore, need further carry out processing under cooling to it.
Under this operating mode, valve 20 is in closing condition, and valve 21 then is in open mode with valve 22.At this moment, pump 10 water that the temperature in the tank 5 is higher is sent in the water at low temperature producer 4 through passage 25, valve 21, passage 26 and shower nozzle 11, recovers its low-temperature condition through the heat exchange with ice cube.Then, get into temperature, humidity conversion tower 3 again through passage 18, valve 22 and passage 28, so that the working continuously of temperature that realize to absorb airborne moisture and reduce air by pump 17.
Because ice cube constantly melts, just need replenish through on the rocks mouthful 15 chute 16 with ice.And fusion water and the moisture that from air, absorbs of ice, then through moisturizing or put (row) aquaporin 24 discharge systems, to keep in the system recoverable amount of water normally.
What deserve particular mention is through controlling the flow of the ice cube that adds water at low temperature producer 4, can realize easily getting into the temperature control of the water in temperature, the humidity conversion tower 3.Since under the certain condition of pressure, water saturation vp and its temperature correlation, and this just means can realize the control to atmospheric moisture easily.
(2) operating mode of humidification.
For example, in the winter of severe cold, after dry and cold air is through entering temperature, humidity conversion tower 3 behind the air filtration unit 2; Run into descend from cat head spray, temperature approximates 0 ℃ water droplet and/or water smoke; At this moment, because the water saturation vp under this temperature and pressure is certain, air will be by automatic humidification; To guarantee the stability of its water cut, can overcome under certain processing condition because the low excessively disadvantageous effect of bringing of the water cut of air; The temperature of air also can raise simultaneously.This just means that there is the trend that changes to the direction that is lower than 0 ℃ in the temperature of the water under this operating mode, therefore, need necessary heat be provided to system, so that make near its temperature that maintains setting.
At this moment concrete operations comprise input channel 23 additional heat in system through steam and/or hot water.At this moment, as long as the heat that replenishes can keep water temperature a little more than 0 ℃, for example remain between 0 ℃～1 ℃ water temperature just passable.Simultaneously, owing under this operating mode, do not had to give the demand of water for cooling, therefore, should open valve 20, shut-off valve 21 and valve 22 and pump 17.
When the input channel 23 through steam and/or hot water in system during additional heat; Moisture also will be admitted to system; Be less than humidification amount if send into intrasystem moisture, can or put (row) aquaporin 24 through moisturizing and in system, further add moisture to air; Otherwise, then emit moisture, to keep the recoverable amount of normal water in the system.
It is important to point out; No matter the temperature of air be from high temperature or from low temperature when 0 ℃ direction changes and passes through this temperature spot; Suggestion keeps original working order earlier; After treating that AT is crossed certain scope of temperature spot of 0 ℃, for example cross 2 ℃ after (for example from-6 ℃ rise to 2 ℃ or drop to-2 ℃ from 6 ℃), it is comparatively reasonable to restart opposite working order.
When air too during severe cold, possibly there is the tendency of freezing in mist eliminator 8, and can adopt controlled heater means to prevent.
In addition, in needs, what of the heat that in system, replenishes through control, the also temperature of the spray water in changing temperature, the humidity conversion tower 3 effectively.Since under the certain condition of pressure, water saturation vp and its temperature correlation, and this just means that also the present technique scheme can realize the control to atmospheric moisture easily.
Sometimes; From consideration to some factor, for example consider economic factor, consider from process aspect and hope the low more good more factor of airborne water cut etc.; Can stop the wet trade that adds in the dry and cold period of air to air; But this does not hinder the present invention or present embodiment in " air of constant humidity is provided to blast furnace blowing engine " function that other periods had, and only is the operation of under certain condition, having interrupted this function.
Present embodiment is a kind of variation of on the basis of embodiment 1, carrying out.The main difference part of present embodiment and embodiment 1 is: temperature, humidity conversion tower 3 are transformed to packing tower by spray column.Among Fig. 2 29 is the filler in the tower.All the other can obtain understanding from embodiment 1.
Present embodiment is a kind of variation of on the basis of embodiment 2, carrying out.Present embodiment is with the main difference part of embodiment 2: cancelled water at low temperature producer 4 and relevant with it pump, valve and pipeline; Filler in temperature, the humidity conversion tower 3 is changed to ice cube 12, and by shelf 13 supports with holes; Increased two clock-types device 30 on the rocks etc.
Under the operating mode of dehumidification in summer; Get in temperature, the humidity conversion tower 3 air with process that ice cube contacts in, the 0 ℃ of fusion water that is about that airborne excess moisture is attached on the ice face absorbs, simultaneously; The temperature of air is also correspondingly reduced, and is sent to blast furnace by blower fan 1 then.Along with constantly melting of ice cube, should replenish through two clock-types device 30 on the rocks.And fusion water and the moisture that from air, absorbs of ice, then through moisturizing or put (row) aquaporin 24 discharge systems, to keep in the system recoverable amount of water normally.
Under the operating mode of above-mentioned dehumidification, valve 20 is in closing condition, and pump 10 also is closed under the state of non-draining.
What deserves to be mentioned is,, can change the time that air contacts with ice cube, just, come the water cut in the control air through increasing or reduce the starting time of vp through increasing or reduce the thickness of the filler ice cube in temperature, the humidity conversion tower 3.
Under the dry and cold operating mode that needs humidification of air, operation on the rocks there is no need in the winter time.Need open valve 20 and ejector priming 10, also will be through input channel 23 additional heat in system of steam and/or hot water, to keep water temperature a little more than 0 ℃.At this moment humidification is to accomplish through the exchange of the moisture between spray water and the dry and cold air.
When the higher atmospheric moisture of needs, can improve water temperature through increasing the heat that in system, replenishes, to realize the higher air of output water cut.
All the other contents can obtain understanding from embodiment 1, embodiment 2.
Present embodiment is a kind of variation of on the basis of embodiment 3, carrying out.The main difference part of present embodiment and embodiment 3 is: the bottom at temperature, humidity conversion tower 3 has increased common fillers section 29, so that make full use of the cold property of the fusion water of ice, save energy.All the other can obtain understanding from embodiment 3.
Present embodiment is a kind of variation of on the basis of embodiment 1, carrying out.The main difference part of present embodiment and embodiment 1 is: it utilizes absorption type refrigerating unit 31 to replace water at low temperature producer 4.
Under the operating mode of dehumidification in summer, the water conservancy that falls into the tank 5 of temperature, humidity conversion tower 3 bottoms is carried out heat exchange with pump 10 extractions and at absorption type refrigerating unit 31, after cooling, circulates in the temperature of reinjecting, the humidity conversion tower 3.In case of necessity, can also change the water temperature that gets in temperature, the humidity conversion tower 3, so that airborne water cut and requirement are complementary through changing the refrigeration intensity of absorption type refrigerating unit 31.The moisture that from air, absorbs is then through moisturizing or put (row) aquaporin 24 discharge systems, to keep the recoverable amount of normal water in the system.
Under the operating mode of above-mentioned dehumidification, valve 20 is in closing condition, and valve 21 is in open mode with 22 on valve.
Adopt the basic intention of present technique scheme to be, adopt absorption type refrigerating unit 31, be convenient to utilize the economic energy, for example depleted steam or hot water, to substitute the energy of high value, for example electric energy produces the lower water of temperature.Also what deserves to be mentioned is; Because it is comparatively nervous that the needs of winter heating, the waste heat of Iron And Steel Plant are supplied usually in the winter time, then has more than needed in summer more; This solution is then big to the demand of waste heat in summer; But relatively very little in the winter time, help realizing the thermal equilibrium of iron and steel enterprise in Various Seasonal, thereby have the higher energy-conservation and effect that reduces cost.
Under the dry and cold operating mode that needs humidification of air, need open valve 20, shut-off valve 21 and valve 22 in the winter time, and input channel 23 additional heat in system through steam and/or hot water, to keep water temperature a little more than 0 ℃.At this moment humidification is to accomplish through the exchange of the moisture between spray water and the dry and cold air.All the other contents can obtain understanding from above relevant embodiment.
Present embodiment is a kind of variation of on the basis of embodiment 2 and embodiment 5, carrying out.The main difference part of present embodiment and embodiment 5 is: temperature, humidity conversion tower 3 are transformed to packing tower by spray column.All the other contents can obtain understanding from embodiment 2, embodiment 5 and above-mentioned other embodiment.
Embodiment 7, and is as shown in Figure 7.
Present embodiment is a kind of variation of on the basis of embodiment 6, carrying out.The main difference part of present embodiment and embodiment 6 is: replaced absorption type refrigerating unit 31 with heat exchanger 32.
Described heat exchanger 32 is placed on the bottom of darker water; For example lake, the darker bottom, seashore utilize there lower water temperature throughout the year, for example are lower than 10 ℃; Obtain the lower cold water of temperature, supply with the blast furnace use to obtain the air that humidity is relatively low and water cut is stable.
Because the water temperature at deep water place all is in more stable state throughout the year, therefore, no matter the height of AT can both keep the stable of air moisture content throughout the year.If hope to make in the winter time the air that gets into gas blower dry more, can be with reference to the part operation scheme among the above relevant embodiment, in the winter time operation scheme etc. among embodiment 1, embodiment 3, the embodiment 5 for example.
All the other also can obtain understanding from embodiment 6 and above-mentioned other embodiment.
It should be noted that in addition: the foregoing description all is a case of the present invention, and one of their effect is that the present invention is played explanation, and should not be construed as any restriction that the present invention is made.
Claims (14)
1. one kind provides the method for the air of constant humidity to blast furnace blowing engine, comprises the step of carrying out humidification and/or dehumidification and heat exchange before the air admission gas blower, it is characterized in that:
1.1 before the air admission gas blower, relative constant liquid water with temperature directly contacts.
2. as claimed in claim 1ly the method for the air of constant humidity is provided, it is characterized in that to blast furnace blowing engine:
2.1 direct contact of the relative constant liquid water with temperature of described air carried out in spray column.
3. as claimed in claim 1ly the method for the air of constant humidity is provided, it is characterized in that to blast furnace blowing engine:
3.1 direct contact of the relative constant liquid water with temperature of described air carried out in packing tower.
4. as claimed in claim 3ly the method for the air of constant humidity is provided, it is characterized in that to blast furnace blowing engine:
4.1 the filler that described packing tower uses is an ice cube.
5. describedly the method for the air of constant humidity is provided like claim 1,2,3 or 4, it is characterized in that to blast furnace blowing engine:
5.1 temperature>=-2 of the relative constant liquid water of described temperature ℃ and≤17 ℃.
6. describedly the method for the air of constant humidity is provided like claim 1,2,3 or 4, it is characterized in that to blast furnace blowing engine:
6.1 the relative constant liquid water of described temperature utilizes the absorption refrigeration unit to produce.
7. describedly the method for the air of constant humidity is provided like claim 1,2,3 or 4, it is characterized in that to blast furnace blowing engine:
7.1 the relative constant liquid water of described temperature utilizes the frozen water method of mixing to produce.
8. as claimed in claim 7ly the method for the air of constant humidity is provided, it is characterized in that to blast furnace blowing engine:
8.1 described frozen water mixes used ice, is to utilize natural low temperature to obtain in the winter time.
9. the device of the method for realization such as claim 1,2,3,4,5,6, the 7 or 8 described air that constant humidity is provided to blast furnace blowing engine comprises it is characterized in that feedway, PWR PLT and the gear of water:
9.1 it also is equipped with temperature, the humidity conversion tower that the relative constant liquid water of air and temperature is directly contacted.
10. the device of the method for realization as claimed in claim 9 such as claim 1,2,3,4,5,6, the 7 or 8 described air that constant humidity is provided to blast furnace blowing engine is characterized in that:
10.1 temperature, humidity conversion tower that described relative constant liquid water with temperature directly contacts are packing towers.
11. the device of the method for realization as claimed in claim 10 such as claim 1,2,3,4,5,6, the 7 or 8 described air that constant humidity is provided to blast furnace blowing engine is characterized in that:
11.1 the filler that described packing tower adopts is an ice cube.
12. the device of the method for realization as claimed in claim 9 such as claim 1,2,3,4,5,6, the 7 or 8 described air that constant humidity is provided to blast furnace blowing engine is characterized in that:
12.1 temperature, humidity conversion tower that described relative constant liquid water with temperature directly contacts are spray columns.
13. the device like the method for claim 9,10 or 12 described realizations such as claim 1,2,3,4,5,6, the 7 or 8 described air that constant humidity is provided to blast furnace blowing engine is characterized in that:
13.1 the feedway of the relative constant liquid water of described temperature is a kind of feedway that utilizes ice, water method of mixing to obtain the relative constant liquid water of temperature.
14. the device like the method for claim 9,10 or 12 described realizations such as claim 1,2,3,4,5,6, the 7 or 8 described air that constant humidity is provided to blast furnace blowing engine is characterized in that:
14.1 in the feedway of the relative constant liquid water of this temperature, comprise the absorption refrigeration unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100419806A CN102643939A (en) | 2011-02-22 | 2011-02-22 | Method and device for supplying constant-humidity air to blast furnace blowers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100419806A CN102643939A (en) | 2011-02-22 | 2011-02-22 | Method and device for supplying constant-humidity air to blast furnace blowers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102643939A true CN102643939A (en) | 2012-08-22 |
Family
ID=46657014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100419806A Pending CN102643939A (en) | 2011-02-22 | 2011-02-22 | Method and device for supplying constant-humidity air to blast furnace blowers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102643939A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888475A (en) * | 2012-09-28 | 2013-01-23 | 中冶南方工程技术有限公司 | Full-oxygen humidifying and blasting device and technology for blast furnace |
| CN109603429A (en) * | 2018-11-14 | 2019-04-12 | 惠州宇新化工有限责任公司 | A kind of raw air preprocess method |
| CN111850213A (en) * | 2020-06-18 | 2020-10-30 | 中冶华天工程技术有限公司 | Integrated energy-saving blast furnace blast dehumidification system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158307A (en) * | 1978-06-05 | 1979-12-14 | Takasago Thermal Engineering | Wet type dehumidifying apparatus of air supplied to blast furnace |
| JPS5521567A (en) * | 1978-08-04 | 1980-02-15 | Kawasaki Heavy Ind Ltd | Method of blasting air to blast furnace |
| JPS57143412A (en) * | 1981-03-03 | 1982-09-04 | Nippon Steel Corp | Humidifying method for blast for blast furnace |
| JPH0241007A (en) * | 1988-07-30 | 1990-02-09 | Pioneer Electron Corp | Digital demodulation processing circuit |
| JPH05222421A (en) * | 1992-02-07 | 1993-08-31 | Kawasaki Steel Corp | Method for humidifying blasting air for blast furnace |
| JPH0941007A (en) * | 1995-07-28 | 1997-02-10 | Nippon Steel Corp | Method for controlling moisture in blast of blast furnace |
| CN101216232A (en) * | 2008-01-18 | 2008-07-09 | 东南大学 | Method for preparing fluid ice by double layer evaporation type supercooled water and the preparing device |
| CN101487398A (en) * | 2008-01-18 | 2009-07-22 | 张开顺 | Spraying type cold air case |
| CN101816884A (en) * | 2010-04-22 | 2010-09-01 | 张保金 | Cooling method and equipment for use in chimney smoke desulphuration and dedusting |
-
2011
- 2011-02-22 CN CN2011100419806A patent/CN102643939A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54158307A (en) * | 1978-06-05 | 1979-12-14 | Takasago Thermal Engineering | Wet type dehumidifying apparatus of air supplied to blast furnace |
| JPS5521567A (en) * | 1978-08-04 | 1980-02-15 | Kawasaki Heavy Ind Ltd | Method of blasting air to blast furnace |
| JPS57143412A (en) * | 1981-03-03 | 1982-09-04 | Nippon Steel Corp | Humidifying method for blast for blast furnace |
| JPH0241007A (en) * | 1988-07-30 | 1990-02-09 | Pioneer Electron Corp | Digital demodulation processing circuit |
| JPH05222421A (en) * | 1992-02-07 | 1993-08-31 | Kawasaki Steel Corp | Method for humidifying blasting air for blast furnace |
| JPH0941007A (en) * | 1995-07-28 | 1997-02-10 | Nippon Steel Corp | Method for controlling moisture in blast of blast furnace |
| CN101216232A (en) * | 2008-01-18 | 2008-07-09 | 东南大学 | Method for preparing fluid ice by double layer evaporation type supercooled water and the preparing device |
| CN101487398A (en) * | 2008-01-18 | 2009-07-22 | 张开顺 | Spraying type cold air case |
| CN101816884A (en) * | 2010-04-22 | 2010-09-01 | 张保金 | Cooling method and equipment for use in chimney smoke desulphuration and dedusting |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888475A (en) * | 2012-09-28 | 2013-01-23 | 中冶南方工程技术有限公司 | Full-oxygen humidifying and blasting device and technology for blast furnace |
| CN109603429A (en) * | 2018-11-14 | 2019-04-12 | 惠州宇新化工有限责任公司 | A kind of raw air preprocess method |
| CN109603429B (en) * | 2018-11-14 | 2021-03-05 | 惠州宇新新材料有限公司 | Raw material air pretreatment method |
| CN111850213A (en) * | 2020-06-18 | 2020-10-30 | 中冶华天工程技术有限公司 | Integrated energy-saving blast furnace blast dehumidification system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100380082C (en) | Method and plate apparatus for dew point evaporative cooler | |
| CN1761852B (en) | Drying system | |
| CN100366981C (en) | Dehumidifier/air-conditioning system | |
| US4355683A (en) | System of moisture and temperature conditioning air using a solar pond | |
| CN102022794B (en) | Radiation suspended ceiling cooling system capable of independently processing heat and humidity | |
| US10300400B2 (en) | Wet evaporation-based cold concentration system | |
| CN103017269A (en) | Solution dehumidification/regeneration heat and moisture independent treatment air conditioning device and energy-saving operation method thereof | |
| CN201569099U (en) | Novel air-conditioning system for top plate of capillary tube of ground source heat pump | |
| CN105627473B (en) | A kind of humiture independence control air conditioner system of solar heat driving | |
| CN100334408C (en) | Solar energy accumulation type equipment of water chilling unit set, and refrigeration method of evaporation and refrigeration | |
| CN202092479U (en) | Closed air cooling system for auxiliary machine circulating cooling water | |
| CN103438530B (en) | A kind ofly cold with ice conserve cold combined refrigeration system | |
| US20130043007A1 (en) | Condenser with capillary cooling device | |
| CN105910190B (en) | A kind of heat of adsorption pond coupled film solution dehumidifying air-conditioning system of Driven by Solar Energy | |
| CN106918104A (en) | Solution dehumidification evaporative cooling refrigerating unit | |
| CN102353102A (en) | Vacuum solution regenerating air dehumidification system and temperature and humidity independent control air conditioning system | |
| CN102643939A (en) | Method and device for supplying constant-humidity air to blast furnace blowers | |
| CN106369722B (en) | Dual-mode solution humidity-adjusting fresh air conditioning unit and air humidity adjusting and controlling method | |
| CN104390387B (en) | Double-work medium double circulation refrigeration system | |
| CN101762177A (en) | Natural-draught brine cooling tower | |
| CN110526318B (en) | Comprehensive utilization method and system for energy of smoke whitening coupling sea water desalination | |
| JP2008045803A (en) | Energy-saving air conditioning system | |
| CN201621979U (en) | Brine cooling tower with natural ventilation | |
| CN209877408U (en) | Energy tower heat pump system with energy storage and solution regeneration functions | |
| CN204854284U (en) | Dehumidification type heat pump drying system with bypass wind channel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120822 |