CN201787820U - Afterheat utilizing system for capacity-rank matching of kiln hood of cement kiln - Google Patents
Afterheat utilizing system for capacity-rank matching of kiln hood of cement kiln Download PDFInfo
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- CN201787820U CN201787820U CN2010202856678U CN201020285667U CN201787820U CN 201787820 U CN201787820 U CN 201787820U CN 2010202856678 U CN2010202856678 U CN 2010202856678U CN 201020285667 U CN201020285667 U CN 201020285667U CN 201787820 U CN201787820 U CN 201787820U
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Abstract
The utility model discloses an afterheat utilizing system for capacity-rank matching of the kiln hood of a cement kiln, which comprises an afterheat generation device, a first heat utilization device and a second heat utilization device; the first temperature of a heat medium used by the first heat utilization device is higher than the second temperature of a heat medium used by the second heat utilization device; a first heat removal port is arranged on the afterheat generation device; the heat medium with the first temperature is discharged from the first heat removal port; the first heat removal port of the afterheat generation device is connected with the first heat utilization device; a first heat rejection port is arranged on the first heat utilization device; the heat medium with the second temperature is discharged from the first heat rejection port; and the first heat rejection port is connected with the second heat utilization device. Through the use of the afterheat utilization device, the distribution of the heat mediums is more reasonable and optimal, which improves the efficiency of the overall system.
Description
Technical field
The utility model relates to the UTILIZATION OF VESIDUAL HEAT IN field, relates in particular to the bootstrap system that cement kiln kiln hood energy level coupling is utilized.
Background technology
In the former industrial production, in manufacture of cement, Ferrous Metallurgy production, a large amount of heat that produces in the production process all directly is discharged in the surrounding environment, it is used.This has not only caused energy waste, and has polluted surrounding environment.For the waste heat that produces in the industrial production is utilized, some systems to UTILIZATION OF VESIDUAL HEAT IN have appearred in recent years.Below in conjunction with manufacture of cement this bootstrap system is described.
Cement industry is the intensive industry of the energy and raw material, belongs to the energy consumption rich and influential family.Manufacture of cement almost completely relies on coal, electric power and mineral resources, and produces a large amount of waste gas residual heats.In order to fully utilize this part residual heat resources, adopt new type nonaqueous cement production line that waste heat is utilized usually, such as utilizing cogeneration.
Fig. 1 is the schematic diagram of a kind of bootstrap system 100 of cement kiln in the prior art.This system 100 comprises kiln hood 101, cold prevention machine 102, residual heat using device 103, coal mill 104.One side of kiln hood 101 is connected with the cement manufacturing system.This cement manufacturing system is a system commonly used in the prior art, therefore not in this detailed description.It in the kiln hood 101 clinker of firing.Cold prevention machine 102 is connected with kiln hood 101.The clinker that is fired into is sent into and is cooled off in the cold prevention machine 102 and carry.Be provided with air blast below cold prevention machine 102, air blast is blown into air to cool off clinker and produce hot blast from cold prevention machine 102 in cold prevention machine 102.Above cold prevention machine 102, be provided with the first heat-obtaining mouth 105, the second heat-obtaining mouth 105 ' and the 3rd heat-obtaining mouth 106.The first heat-obtaining mouth 105 and the second heat-obtaining mouth 105 ' are positioned at the front end of cold prevention machine 102, and the 3rd heat-obtaining mouth 106 is positioned at the rear end of cold prevention machine 102.Wherein the temperature of the first heat-obtaining mouth 105 of close kiln hood 101 and the second heat-obtaining mouth 105 ' is higher, and is lower away from the 3rd heat-obtaining mouth 106 temperature of kiln hood 101.Hot blast temperature lower (greatly about about 150 ℃) from 106 discharges of the 3rd heat-obtaining mouth, to the utilization of the hot blast of this lower temperature difficulty relatively, thus this part hot blast directly by after 107 dedustings of first dust arrester by first exhaust apparatus (for example chimney), 108 discharges.And the temperature higher (greatly about about 360 ℃ to 420 ℃) of the hot blast that the first heat-obtaining mouth 105 and the second heat-obtaining mouth 105 ' are discharged, this part hot blast is the object that carries out UTILIZATION OF VESIDUAL HEAT IN.Hot blast from the 105 ' discharge of the second heat-obtaining mouth, enter expansion chamber by conveyance conduit, remove most of solid particle in the flue gas, be supplied to residual heat using device 103 (such as the AQC waste heat boiler) then, discharge (such as producing steam with generating) back to be supplied to the hot blast of residual heat using device 103 to be utilized in residual heat using device 103, the hot blast of discharging through 107 dedustings of first dust arrester after, discharge by first exhaust apparatus 108.
For coal mill 104, because the hot blast temperature that adopts in the coal mill 104 can not be too high, this temperature can be determined according to the moisture of coal dust, usually greatly between 200 ℃-300 ℃, and the temperature of hot blast that flows to coal mill 104 from the first heat-obtaining mouth 105 is greatly about about 300 ℃ to 500 ℃, because its temperature is higher, so this part hot blast can not satisfy the needs of coal mill 104, handle this part hot blast.In general, the method for processing is that the cold wind wind-supplying mouth is set, and adds cold wind before this part hot blast enters coal mill 104 in hot blast, is reduced to the temperature that is fit to coal mill 104 with the hot blast that temperature is higher.Hot blast after the cooling is being discharged by second exhaust apparatus 108 ' through passing through second dust arrester 107 ' after the utilization of coal mill 104.
In another kind of prior art, the first heat-obtaining mouth 105 and the second heat-obtaining mouth 105 ' can be same heat-obtaining mouths, therefrom a hot blast part of Qu Chuing is supplied to residual heat using device 103 (such as the AQC waste heat boiler) by conveyance conduit, and another part is supplied to coal mill 104 by conveyance conduit.
Go into the way of cold wind for above-mentioned benefit, from whole therrmodynamic system analysis, the cold medium (such as cold wind) that mixes has absorbed the heat of the thermal medium of system, and the entropy that has increased system produces, and has reduced the UTILIZATION OF VESIDUAL HEAT IN efficient of system undoubtedly.When adopting this residual heat using device to generate electricity, also reduced generating efficiency.
There is above problem equally in the technology that other coal mill of the prior art is got wind, and its essence all is to come the heats cold medium with thermal medium, and the quality of this part high temperature thermal medium just is lowered use like this.From whole system, mix the entropy product that cold medium has increased system, reduce Btu utilization, thereby reduced the UTILIZATION OF VESIDUAL HEAT IN efficient of whole system.
Therefore, need a kind of new cement kiln kiln hood energy level to mate the bootstrap system of utilization to address the above problem.
The utility model content
In order to overcome above-mentioned the deficiencies in the prior art, the bootstrap system that the utility model provides a kind of cement kiln kiln hood energy level coupling to utilize, this bootstrap system comprises the waste heat generation device, the first Btu utilization device and the second Btu utilization device, first temperature of the thermal medium of this first Btu utilization device utilization is higher than second temperature of the thermal medium of this second Btu utilization device utilization, this waste heat generation device is provided with the first heat-obtaining mouth, this first heat-obtaining mouth is discharged the thermal medium with this first temperature, this first heat-obtaining mouth of this waste heat generation device is connected with this first Btu utilization device, also be provided with the first heat extraction mouth on this first Btu utilization device, this first heat extraction mouth is discharged the thermal medium with this second temperature, and this first heat extraction mouth is connected with this second Btu utilization device.
Further, also be provided with second heat extraction mouth and the heat inlet on this first Btu utilization device, this second heat extraction mouth is discharged the thermal medium after this first Btu utilization device utilizes, and this heat inlet is connected with this first heat-obtaining mouth.
Further, this second heat extraction mouth and this heat inlet are separately positioned on the two ends of this first Btu utilization device.
Further, this first heat extraction mouth is arranged between this heat inlet and this second heat extraction mouth and at the middle part of this first Btu utilization device.
Further, between this first heat-obtaining mouth and this second Btu utilization device, also be provided with backup line.
Further, this bootstrap system is connected with cement kiln, and this waste heat generation device is a cold prevention machine, and this first Btu utilization device is the AQC boiler, and this second Btu utilization device is a coal mill.
Further, between this AQC boiler and this cold prevention machine, also be provided with expansion chamber.
Further, also be provided with second heat extraction mouth and the heat inlet on this AQC boiler, this second heat extraction mouth is discharged the thermal medium after this AQC boiler utilizes, and this heat inlet is connected with this first heat-obtaining mouth.
Further, this second heat extraction mouth is connected with dust arrester.
Further, this second heat extraction mouth and this heat inlet are separately positioned on the two ends of this AQC boiler.
Further, this first heat extraction mouth is arranged between this heat inlet and this second heat extraction mouth, and at the middle part of this AQC boiler.
Further, between this first heat-obtaining mouth and this coal mill, also be provided with backup line.
Further, this coal mill is connected by the coal mill trunk line with this backup line, and also is provided with cold wind on this coal mill trunk line and mends into device.
By bootstrap system of the present utility model, the waste heat that makes the waste heat generation device produce can make full use of, avoided before entering the second Btu utilization device, mending a large amount of cold media to reduce the way of heat medium temperature, make thermal medium distribution more rationally and optimize, waste heat is carried out sufficient utilization, also therefore improved overall system efficiency.
Introduced the notion of a series of reduced forms in the utility model content part, this will further describe in specific embodiment part.The utility model content part does not also mean that key feature and the essential features that will attempt to limit technical scheme required for protection, does not more mean that the protection domain of attempting to determine technical scheme required for protection.
Below in conjunction with accompanying drawing, describe advantage of the present utility model and feature in detail.
Description of drawings
Fig. 1 is the schematic diagram of a kind of bootstrap system in the prior art;
Fig. 2 A is the block diagram according to the bootstrap system of an embodiment of the utility model;
Fig. 2 B is the schematic diagram according to the bootstrap system of an embodiment of the utility model;
Fig. 3 is the schematic diagram according to the bootstrap system of another embodiment of the utility model.
The specific embodiment
In the following description, having provided a large amount of concrete details understands the utility model more completely so that provide.Yet, it will be apparent to one skilled in the art that the utility model can need not one or more these details and implemented.In other example,, be not described for technical characterictics more well known in the art for fear of obscuring with the utility model.
In order thoroughly to understand the utility model, detailed structure will be proposed in following description.Obviously, execution of the present utility model is not limited to the specific details that those skilled in the art has the knack of.Preferred embodiment of the present utility model is described in detail as follows, yet except these were described in detail, the utility model can also have other embodiments.
With reference to figure 2A, be the block diagram that mates the bootstrap system 200A that utilizes according to the cement kiln kiln hood energy level of an embodiment of the utility model.This bootstrap system 200A comprises waste heat generation device 210A, the first Btu utilization device 220A and the second Btu utilization device 230A, first temperature of the thermal medium that this first Btu utilization device 220A utilizes is higher than second temperature of the thermal medium of this second Btu utilization device 230A utilization, this waste heat generation device 210A is provided with the first heat-obtaining mouth 211A, this first heat-obtaining mouth 211A discharges the thermal medium with this first temperature, this first heat-obtaining mouth 211A of this waste heat generation device 210A is connected with this first Btu utilization device 220A, also be provided with the first heat extraction mouth 221A on this first Btu utilization device 220A, this first heat extraction mouth 221A discharges the thermal medium with second temperature, and this first heat extraction mouth 221A is connected with this second Btu utilization device 230A.
The temperature that is arranged so that the thermal medium that above-mentioned second temperature and the second Btu utilization device 230A can utilize of the above-mentioned first heat extraction mouth 221A is complementary.
Preferable, also be provided with the second heat extraction mouth 222A and heat inlet 223A on the first above-mentioned Btu utilization device 220A.This second heat extraction mouth 222A discharges the thermal medium after the first Btu utilization device 220A utilizes, and this heat inlet 223A is connected with this first heat-obtaining mouth 211A.This second heat extraction mouth 222A and heat inlet 223A are separately positioned on the two ends of the first Btu utilization device 220A.
Preferably, the first heat extraction mouth 221A is arranged between the heat inlet 223A and the second heat extraction mouth 222A and at the middle part of this first Btu utilization device 220A.
Preferable, between the first heat extraction mouth 221A and the second Btu utilization device 230A, also be connected with backup line 240A.The effect of backup line 240A will be discussed in more detail below.
Following mask body is described in further detail embodiment of the present utility model in conjunction with the bootstrap system in the cement kiln.
With reference to figure 2B, be schematic diagram according to the bootstrap system 200 of an embodiment of the utility model.Arrow among the figure has been expressed the direction that thermal medium flows.System 200 comprises cold prevention machine 210, residual heat using device 220 and coal mill 230.Wherein cold prevention machine 210 is an example of above-mentioned waste heat generation device, and residual heat using device 220 is an example of the first above-mentioned Btu utilization device, and coal mill 230 is an example of the above-mentioned second Btu utilization device.In the present embodiment, cold prevention machine 210 is connected with kiln hood, and in order to produce thermal medium, such as hot blast, but this thermal medium is not limited to hot blast, such as also can being hot liquid etc.Known by those skilled in the art for kiln hood and the cement manufacturing system that is connected with kiln hood, therefore do not repeated them here.
Below cold prevention machine 210, air blast is set, so that the form of the thermal medium in the cold prevention machine 210 with hot blast blown out.Cold prevention machine 210 is provided with the first heat-obtaining mouth 211 and the second heat-obtaining mouth 212.Wherein the first heat-obtaining mouth 211 is arranged on the cold prevention machine 210 end near kiln hood, and the second heat-obtaining mouth 212 is arranged on the cold prevention machine 210 end away from kiln hood.Because the first heat-obtaining mouth 211 is near kiln hood, therefore, the temperature of the hot blast that wherein gives off is higher, this part hot blast has first temperature, this first temperature is such as can be greatly between 300 ℃ to 500 ℃, and is preferable between 360 ℃ to 420 ℃, can certainly surpass said temperature.And the hot blast temperature lower (greatly about about 150 ℃) that the second heat-obtaining mouth 212 is discharged, so this portion of hot medium is directly by discharging by first tapping equipment (for example chimney) 250 after 240 dedustings of first dust arrester.At this moment, system 200 also comprises this first dust arrester 240 and first tapping equipment 250.
For the thermal medium with first temperature (such as hot blast) of discharging from the first heat-obtaining mouth 211, it at first enters residual heat using device 220 by conveyance conduit 221 by the heat inlet 223 of residual heat using device 220 and utilizes.Residual heat using device 220 is such as being the AQC waste heat boiler.Thermal medium can carry out heat exchange to utilize in this residual heat using device 220.Such as produce steam with generating by this thermal medium.In addition, on conveyance conduit 221, expansion chamber 260 can be set, so that the impurity in the hot blast is carried out sedimentation.This dedusting can adopt several different methods to carry out, such as selecting gravitational dust collection, inertia force to add multiple modes such as gravity dedusting, cyclone dust removal.
Residual heat using device 220 is provided with the first heat extraction mouth 222.Through the thermal medium after residual heat using device 220 utilizations, when its temperature drops to second temperature that is fit to coal mill 230 utilizations (between) such as 200 ℃ to 300 ℃, the thermal medium that will have this second temperature is extracted out from the first heat extraction mouth 222, to provide it to coal mill 230.The thermal medium of this extraction can be a part that has the thermal medium of this second temperature in the residual heat using device 220, and the normal operation that only needs to guarantee coal mill 230 gets final product.Remaining thermal medium continues to utilize in residual heat using device 220, through the second heat extraction mouth 224 of residual heat using device 220 thermal medium of low temperature is discharged at last.The thermal medium with second temperature of this extraction and coal mill 230 needed temperature are complementary.In order to protect surrounding environment, the low-temperature heat medium of discharging from the second heat extraction mouth 224 of residual heat using device 230 at first enters first dust arrester 240 and carries out dedusting, after dedusting through 250 dischargings of first tapping equipment.First dust arrester 240 can utilize existing multiple dedusting technology, such as electric precipitation etc.
Can select the first heat extraction mouth 222 of suitable residual heat using device 220, to realize from the first heat extraction mouth 222, obtaining the purpose of thermal medium with second temperature.Such as, when adopting above-mentioned AQC waste heat boiler, under the situation of the temperature stabilization of the first heat-obtaining mouth 211, the thermal medium of the corresponding different temperatures of the diverse location of AQC waste heat boiler, therefore can at first obtain the temperature at diverse location place in the AQC boiler, be that the first heat extraction mouth 222 is offered in position between 200 ℃ to 300 ℃ in temperature then.When the heat inlet 223 of thermal medium from the top of boiler enters, and when the second heat extraction mouth 224 of boiler bottom is discharged, be the above-mentioned heat inlet 223 and the second heat extraction mouth 224 when being separately positioned on the two ends of this boiler, the described first heat extraction mouth 222 is preferably disposed on the middle part of this boiler.Can obtain the thermal medium of second temperature of preferable suitable coal mill 230 like this.
From residual heat using device 220, extract the hot blast that enters into coal mill 230 out, be discharged from after in coal mill 230, utilizing.The thermal medium of discharging is discharged in the surrounding environment by second tapping equipment 250 ' by second dust arrester, 240 ' back.Be understandable that first dust arrester 240, first tapping equipment 250 and second dust arrester 240 ', second tapping equipment 250 ' are same or similar.
With reference to figure 3, be schematic diagram according to the bootstrap system 300 of another embodiment of the utility model.Arrow among the figure has been expressed the direction that thermal medium flows.System 300 comprises cold prevention machine 310, residual heat using device 320, coal mill 330, first dust arrester 340, second dust arrester 340 ', first tapping equipment 350, second tapping equipment 350 ' and the expansion chamber 360.Cold prevention machine 310 is provided with the first heat-obtaining mouth 311 and the second heat-obtaining mouth 312.Also offer the first heat extraction mouth 322, the second heat extraction mouth 324 and heat-obtaining mouth 323 on the residual heat using device 320.Between cold prevention machine 310 and residual heat using device 320, connect by conveyance conduit 321.These parts of system 300 are identical or similar with corresponding component in the above-mentioned system 200, therefore do not repeat them here.The different places with system 200 of system 300 are, are connected with backup line 331 between the first heat-obtaining mouth 311 of cold prevention machine 310 and coal mill 330.Coal mill 330 is connected by coal mill trunk line 332 with backup line 331.Backup line 331 generally is in closed condition.Thermal medium still circulates according to the description in conjunction with Fig. 2.The benefit that backup line 331 is set is, when needs keep in repair residual heat using device 320, can utilize backup line 331 to make coal mill 330 continue maintenance work.At this moment, the working method of backup line 331 is with of the prior art identical and similar.After residual heat using device 320 maintenance finishes, can close backup line 331 and still make thermal medium pass through residual heat using device 320.So do not need the pipeline in the existing system is removed yet, only need it to be set to backup line and get final product.Be understandable that, when adopting this backup line when residual heat using device 320 is overhauled, before thermal medium enters coal mill 330 and on the trunk line 332 of this coal mill 330, also be provided with cold wind and mend, so that enter the use that the temperature of the thermal medium of coal mill 330 is fit to coal mill 330 into device.Another benefit of this backup line 331 is, when the temperature of the thermal medium of extracting out from the first heat extraction mouth 322 of residual heat using device 320 is low, can open this backup line 331, with the supplemental heat medium in coal mill 330.
In addition, on the pipeline that connects above-mentioned parts, can be provided with valve gear.Can carry out the operation of opening and closing to above-mentioned pipeline by valve gear, can keep in repair every segment pipe easily like this.
Bootstrap system by cement kiln kiln hood energy level coupling of the present utility model utilization, the waste heat that makes the waste heat generation device produce can make full use of, avoided before entering the second Btu utilization device, mending a large amount of cold airs to reduce the way of hot blast temperature, make thermal medium distribution more rationally and optimize, waste heat is carried out sufficient utilization, also therefore improved overall system efficiency.With above-mentioned cement kiln bootstrap system is example, and the UTILIZATION OF VESIDUAL HEAT IN efficient of whole system has improved about 5%.
The utility model is illustrated by the foregoing description, but should be understood that, the foregoing description just is used for for example and illustrative purposes, but not is intended to the utility model is limited in the described scope of embodiments.It will be understood by those skilled in the art that in addition; the utility model is not limited to the foregoing description; can also make more kinds of variants and modifications according to instruction of the present utility model, these variants and modifications all drop in the utility model scope required for protection.Protection domain of the present utility model is defined by the appended claims and equivalent scope thereof.
Claims (13)
1. a cement kiln kiln hood energy level mates the bootstrap system that utilizes, described bootstrap system comprises the waste heat generation device, the first Btu utilization device and the second Btu utilization device, first temperature of the thermal medium of the described first Btu utilization device utilization is higher than second temperature of the thermal medium of described second Btu utilization device utilization, described waste heat generation device is provided with the first heat-obtaining mouth, the described first heat-obtaining mouth is discharged the thermal medium with described first temperature, it is characterized in that, the described first heat-obtaining mouth of described waste heat generation device is connected with the described first Btu utilization device, also be provided with the first heat extraction mouth on the described first Btu utilization device, the described first heat extraction mouth is discharged the thermal medium with described second temperature, and the described first heat extraction mouth is connected with the described second Btu utilization device.
2. according to the described bootstrap system of claim 1, it is characterized in that, also be provided with second heat extraction mouth and the heat inlet on the described first Btu utilization device, the described second heat extraction mouth is discharged the thermal medium after the described first Btu utilization device utilizes, and described heat inlet is connected with the described first heat-obtaining mouth.
3. according to the described bootstrap system of claim 2, it is characterized in that described second heat extraction mouth and described heat inlet are separately positioned on the two ends of the described first Btu utilization device.
4. according to the described bootstrap system of claim 3, it is characterized in that the described first heat extraction mouth is arranged between described heat inlet and the described second heat extraction mouth and at the middle part of the described first Btu utilization device.
5. according to the described bootstrap system of claim 1, it is characterized in that, between described first heat-obtaining mouth and the described second Btu utilization device, also be provided with backup line.
6. according to the bootstrap system described in the claim 1, it is characterized in that described bootstrap system is connected with cement kiln, described waste heat generation device is a cold prevention machine, the described first Btu utilization device is the AQC boiler, and the described second Btu utilization device is a coal mill.
7. according to the described bootstrap system of claim 6, it is characterized in that, between described AQC boiler and described cold prevention machine, also be provided with expansion chamber.
8. according to the described bootstrap system of claim 6, it is characterized in that, also be provided with second heat extraction mouth and the heat inlet on the described AQC boiler, the described second heat extraction mouth is discharged the thermal medium after described AQC boiler utilizes, and described heat inlet is connected with the described first heat-obtaining mouth.
9. according to the described bootstrap system of claim 8, it is characterized in that the described second heat extraction mouth is connected with dust arrester.
10. according to the described bootstrap system of claim 8, it is characterized in that described second heat extraction mouth and described heat inlet are separately positioned on the two ends of described AQC boiler.
11., it is characterized in that the described first heat extraction mouth is arranged between described heat inlet and the described second heat extraction mouth according to the described bootstrap system of claim 10, and at the middle part of described AQC boiler.
12. according to the described bootstrap system of claim 6, it is characterized in that, between described first heat-obtaining mouth and described coal mill, also be provided with backup line.
13., it is characterized in that described coal mill is connected by the coal mill trunk line with described backup line according to the described bootstrap system of claim 12, and also be provided with cold wind on the described coal mill trunk line and mend into device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202856678U CN201787820U (en) | 2010-08-09 | 2010-08-09 | Afterheat utilizing system for capacity-rank matching of kiln hood of cement kiln |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202856678U CN201787820U (en) | 2010-08-09 | 2010-08-09 | Afterheat utilizing system for capacity-rank matching of kiln hood of cement kiln |
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| CN201787820U true CN201787820U (en) | 2011-04-06 |
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| CN2010202856678U Expired - Fee Related CN201787820U (en) | 2010-08-09 | 2010-08-09 | Afterheat utilizing system for capacity-rank matching of kiln hood of cement kiln |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353275A (en) * | 2011-09-07 | 2012-02-15 | 思安新能源股份有限公司 | Exhaust-heat boiler for energy optimum utilization |
| CN105091611A (en) * | 2014-05-06 | 2015-11-25 | 武安市新峰水泥有限责任公司 | Coal mill grinding hot air pipe and power generation hot air pipe parallel device |
-
2010
- 2010-08-09 CN CN2010202856678U patent/CN201787820U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102353275A (en) * | 2011-09-07 | 2012-02-15 | 思安新能源股份有限公司 | Exhaust-heat boiler for energy optimum utilization |
| CN105091611A (en) * | 2014-05-06 | 2015-11-25 | 武安市新峰水泥有限责任公司 | Coal mill grinding hot air pipe and power generation hot air pipe parallel device |
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Address after: 710065, SOHO League, second, 1, Kam Yip Road, Xi'an hi tech Zone, Shaanxi, 4 Patentee after: Suunpower Co.,Ltd. Address before: 710075 Shaanxi Province, Xi'an city high road Torch Hotel, 14 floor Patentee before: Xi'an Si'an New Energy Co., Ltd. |
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