CN107487994A - A kind of chamotte cooler waste heat recovery rotary kiln oxygen system - Google Patents
A kind of chamotte cooler waste heat recovery rotary kiln oxygen system Download PDFInfo
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- CN107487994A CN107487994A CN201710714709.1A CN201710714709A CN107487994A CN 107487994 A CN107487994 A CN 107487994A CN 201710714709 A CN201710714709 A CN 201710714709A CN 107487994 A CN107487994 A CN 107487994A
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- 239000002918 waste heat Substances 0.000 title claims abstract description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 239000001301 oxygen Substances 0.000 title claims abstract description 15
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 15
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- 239000004568 cement Substances 0.000 claims abstract description 79
- 238000001816 cooling Methods 0.000 claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 37
- 239000003245 coal Substances 0.000 claims abstract description 33
- 238000001354 calcination Methods 0.000 claims abstract description 24
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 claims abstract description 20
- 239000000428 dust Substances 0.000 claims abstract description 17
- 230000032683 aging Effects 0.000 claims description 34
- 235000012054 meals Nutrition 0.000 claims description 19
- 239000000446 fuel Substances 0.000 claims description 17
- 238000002156 mixing Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 4
- 230000005070 ripening Effects 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 239000012716 precipitator Substances 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019577 caloric intake Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
- C04B7/4492—Inhibiting the formation of or eliminating incrustations in the cement kiln
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/44—Burning; Melting
- C04B7/4407—Treatment or selection of the fuel therefor, e.g. use of hazardous waste as secondary fuel ; Use of particular energy sources, e.g. waste hot gases from other processes
- C04B7/4415—Waste hot gases
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
- C04B7/47—Cooling ; Waste heat management
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/10—Arrangements for using waste heat
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
- Y02P40/121—Energy efficiency measures, e.g. improving or optimising the production methods
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种水泥生产工艺设备技术领域，特别是一种熟料冷却机余热回收旋窑供氧系统。The invention relates to the technical field of cement production process equipment, in particular to a clinker cooler waste heat recovery rotary kiln oxygen supply system.
背景技术Background technique
水泥的生产过程中首先需要按照工艺配比混合水泥生料，然后将水泥生料投入到水泥回转窑中，将水泥混合生料煅烧制成水泥熟料；因此水泥熟化回转窑是水泥生产工艺中的核心设备之一，同时水泥熟化回转窑也是水泥生产过程中能耗最高的一道工序。现有技术中的水泥回转窑。现有技术中的水泥回转窑中的水泥混合生料在煅烧过程中容易出现结块附着现象，从而使的水泥煅烧过程中存在受热过饱和的情况，因此增加了水泥生料的煅烧耗热量，并且使水泥生料的受热不均匀，增加了水泥熟化回转窑的能耗。In the cement production process, it is first necessary to mix cement raw materials according to the process ratio, and then put the cement raw materials into the cement rotary kiln, and calcinate the cement mixed raw materials to make cement clinker; It is one of the core equipment, and the cement curing rotary kiln is also the process with the highest energy consumption in the cement production process. A cement rotary kiln in the prior art. The cement mixed raw meal in the cement rotary kiln in the prior art is prone to agglomeration and adhesion during the calcination process, so that the cement calcination process is supersaturated with heat, thus increasing the calorie consumption of the cement raw meal. Moreover, the heating of the cement raw meal is uneven, which increases the energy consumption of the cement curing rotary kiln.
此外水泥熟化回转窑的煅烧尾气的余热再利用也是目前降低回转窑能耗的主要方法和重点研究项目。因此有必要设计一种新型的水泥熟化回转窑，能够使水泥生料受热均匀，从而降低水泥熟化回转窑的能耗，并且能够对水泥熟化回转窑的煅烧尾气的余热进行充分地再利用。In addition, the reuse of waste heat from the calcination tail gas of the cement curing rotary kiln is also the main method and key research project to reduce the energy consumption of the rotary kiln. Therefore, it is necessary to design a new type of cement curing rotary kiln, which can heat the cement raw meal evenly, thereby reducing the energy consumption of the cement curing rotary kiln, and can fully reuse the waste heat of the calcination tail gas of the cement curing rotary kiln.
发明内容Contents of the invention
为了克服现有技术的不足，本发明提供了一种熟料冷却机余热回收旋窑供氧系统，能够使水泥生料受热均匀，从而降低水泥熟化回转窑的能耗，并且能够对水泥熟化回转窑的煅烧尾气的余热进行充分地再利用。In order to overcome the deficiencies of the prior art, the present invention provides a clinker cooler waste heat recovery rotary kiln oxygen supply system, which can make the cement raw meal heated evenly, thereby reducing the energy consumption of the cement curing rotary kiln, and can rotate the cement curing The waste heat of the calcination tail gas of the kiln is fully reused.
本发明解决其技术问题所采用的技术方案是：The technical solution adopted by the present invention to solve its technical problems is:
一种熟料冷却机余热回收旋窑供氧系统，包括熟化回转窑筒、以及设置于所述熟化回转窑筒内的气体燃烧加热筒，所述气体燃烧加热筒的下游端连通煤粉空气混合管路，所述熟化回转窑筒的下游端连通水泥熟料冷却仓；所述水泥熟料冷却仓的上游端连通熟料冷却鼓风管，所述水泥熟料冷却仓的下游端连通水泥熟料电集尘器的粉尘输入端，所述水泥熟料电集尘器的尾气排出端连通所述煤粉空气混合管路。A clinker cooler waste heat recovery rotary kiln oxygen supply system, comprising a maturing rotary kiln barrel, and a gas combustion heating cylinder arranged in the aging rotary kiln barrel, the downstream end of the gas combustion heating cylinder is connected to pulverized coal and air mixing Pipeline, the downstream end of the aging rotary kiln barrel is connected to the cement clinker cooling bin; the upstream end of the cement clinker cooling bin is connected to the clinker cooling blast pipe, and the downstream end of the cement clinker cooling bin is connected to the cement clinker cooling bin. The dust input end of the material electric dust collector, and the exhaust gas discharge end of the cement clinker electric dust collector are connected to the pulverized coal air mixing pipeline.
作为上述技术方案的进一步改进，所述气体燃烧加热筒的上游端连通加热尾气排出管路，所述煤粉空气混合管路连接煤粉燃料输入漏斗和助燃鼓风机，所述煤粉燃料输入漏斗中设置有煤粉燃料投料螺杆，所述煤粉燃料输入漏斗和所述煤粉燃料投料螺杆均竖直设置；所述助燃鼓风机的出风口一端连接所述煤粉空气混合管路，所述助燃鼓风机的进风口一端连通所述水泥熟料电集尘器的尾气排出端。As a further improvement of the above technical solution, the upstream end of the gas combustion heating cylinder is connected to the exhaust gas discharge pipeline, the pulverized coal air mixing pipeline is connected to the pulverized coal fuel input funnel and the combustion-supporting blower, and the pulverized coal fuel is input into the funnel A pulverized coal fuel feeding screw is provided, and the pulverized coal fuel input funnel and the pulverized coal fuel feeding screw are both vertically arranged; one end of the air outlet of the combustion-supporting blower is connected to the pulverized coal-air mixing pipeline, and the combustion-supporting blower One end of the air inlet is connected to the tail gas discharge end of the cement clinker electric dust collector.
作为上述技术方案的进一步改进，所述熟化回转窑筒的轴向两端开口，且所述熟化回转窑筒的上游端设置有回转窑上游安装座，所述熟化回转窑筒的下游端设置有回转窑下游安装座，所述回转窑上游安装座的顶部设置有水泥生料投料口，所述回转窑下游安装座的底部设置有水泥熟料排料口。As a further improvement of the above technical solution, both axial ends of the aging rotary kiln barrel are open, and the upstream end of the aging rotary kiln barrel is provided with a rotary kiln upstream mounting seat, and the downstream end of the aging rotary kiln barrel is provided with a The downstream mounting seat of the rotary kiln, the top of the upstream mounting seat of the rotary kiln is provided with a cement raw meal feeding port, and the bottom of the downstream mounting seat of the rotary kiln is provided with a cement clinker discharge port.
作为上述技术方案的进一步改进，所述水泥生料投料口的上方设置有水泥生料投料斗，所述水泥熟料排料口连通所述水泥熟料冷却仓的上游端顶部；所述熟料冷却鼓风管一端连接所述水泥熟料冷却仓，所述熟料冷却鼓风管的另一端连接熟料冷却鼓风机。As a further improvement of the above technical solution, a cement raw meal feeding hopper is provided above the cement raw meal feeding port, and the cement clinker discharging port is connected to the top of the upstream end of the cement clinker cooling bin; the clinker One end of the cooling blast pipe is connected to the cement clinker cooling bin, and the other end of the clinker cooling blast pipe is connected to a clinker cooling blower.
作为上述技术方案的进一步改进，所述熟化回转窑筒的外侧设置有窑筒回转支撑环，所述窑筒回转支撑环位于所述回转窑上游安装座和所述回转窑下游安装座之间，且所述窑筒回转支撑环同轴套装在所述熟化回转窑筒上，所述窑筒回转支撑环的内侧设置有若干窑筒回转驱动轮，若干所述窑筒回转驱动轮的辊面均紧贴所述熟化回转窑筒的外侧面，且若干所述窑筒回转驱动轮的轴线均平行于所述熟化回转窑筒的轴线。As a further improvement of the above technical solution, a kiln barrel rotary support ring is provided on the outside of the aging rotary kiln barrel, and the kiln barrel rotary support ring is located between the rotary kiln upstream mounting seat and the rotary kiln downstream mounting seat, In addition, the kiln barrel rotary support ring is coaxially set on the ripening rotary kiln barrel, and the inner side of the kiln barrel rotary support ring is provided with several kiln barrel rotary drive wheels, and the roller surfaces of several kiln barrel rotary drive wheels are uniform. It is close to the outer surface of the aging rotary kiln barrel, and the axes of several kiln barrel rotary driving wheels are all parallel to the axis of the aging rotary kiln barrel.
作为上述技术方案的进一步改进，还包括设置于所述熟化回转窑筒和所述气体燃烧加热筒之间的煅烧输送螺旋叶片，所述气体燃烧加热筒与所述熟化回转窑筒同轴设置，且所述煅烧输送螺旋叶片的外径与所述熟化回转窑筒的内径相等，所述煅烧输送螺旋叶片的内径与所述气体燃烧加热筒的外径相等，所述煅烧输送螺旋叶片固定设置于所述熟化回转窑筒的内侧壁上。As a further improvement of the above technical solution, it also includes calcining conveying screw blades arranged between the aging rotary kiln barrel and the gas combustion heating barrel, the gas combustion heating barrel is coaxially arranged with the aging rotary kiln barrel, And the outer diameter of the calcining conveying screw blade is equal to the inner diameter of the aging rotary kiln barrel, the inner diameter of the calcining conveying screw blade is equal to the outer diameter of the gas combustion heating cylinder, and the calcining conveying screw blade is fixedly arranged on On the inner wall of the aging rotary kiln barrel.
与现有技术相比较，本发明的有益效果是：Compared with prior art, the beneficial effect of the present invention is:
本发明所提供的一种熟料冷却机余热回收旋窑供氧系统，通过设置煅烧输送螺旋叶片，煅烧输送螺旋叶片随熟化回转窑筒同步旋转，能够避免水泥混合生料在煅烧过程中出现结块附着的现象，降低水泥生料的煅烧耗热量，使水泥生料受热均匀，从而降低水泥熟化回转窑的能耗；并且通过将水泥熟料电集尘器的尾气排出端连通煤粉空气混合管路，能够对水泥熟化回转窑的煅烧尾气的余热进行充分地再利用。The waste heat recovery rotary kiln oxygen supply system of the clinker cooler provided by the present invention, by setting the calcining and conveying screw blades, the calcining and conveying spiral blades rotate synchronously with the maturing rotary kiln barrel, can avoid cement mixed raw meal in the calcining process. The phenomenon of block adhesion can reduce the calcining heat consumption of cement raw meal, so that the cement raw meal can be heated evenly, thereby reducing the energy consumption of the cement curing rotary kiln; The pipeline can fully reuse the waste heat of the calcination tail gas of the cement curing rotary kiln.
附图说明Description of drawings
下面结合附图和实施例对本发明进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
图1是本发明所述的一种熟料冷却机余热回收旋窑供氧系统的结构示意图。Fig. 1 is a structural schematic diagram of a clinker cooler waste heat recovery rotary kiln oxygen supply system according to the present invention.
具体实施方式detailed description
参照图1，图1是本发明一个具体实施例的结构示意图。Referring to FIG. 1, FIG. 1 is a schematic structural view of a specific embodiment of the present invention.
如图1所示，一种熟料冷却机余热回收旋窑供氧系统，包括熟化回转窑筒1、以及设置于所述熟化回转窑筒1内的气体燃烧加热筒2，所述气体燃烧加热筒2的下游端连通煤粉空气混合管路3，所述熟化回转窑筒1的下游端连通水泥熟料冷却仓4；所述水泥熟料冷却仓4的上游端连通熟料冷却鼓风管5，所述水泥熟料冷却仓4的下游端连通水泥熟料电集尘器6的粉尘输入端，所述水泥熟料电集尘器6的尾气排出端连通所述煤粉空气混合管路3。As shown in Figure 1, a clinker cooler waste heat recovery rotary kiln oxygen supply system includes a maturing rotary kiln barrel 1 and a gas combustion heating barrel 2 arranged in the maturing rotary kiln barrel 1, the gas combustion heating The downstream end of the cylinder 2 is connected to the pulverized coal air mixing pipeline 3, the downstream end of the aging rotary kiln cylinder 1 is connected to the cement clinker cooling bin 4; the upstream end of the cement clinker cooling bin 4 is connected to the clinker cooling blast pipe 5. The downstream end of the cement clinker cooling bin 4 is connected to the dust input end of the cement clinker electric dust collector 6, and the tail gas discharge end of the cement clinker electric dust collector 6 is connected to the pulverized coal air mixing pipeline 3.
作为优选的，所述气体燃烧加热筒2的上游端连通加热尾气排出管路7，所述煤粉空气混合管路3连接煤粉燃料输入漏斗8和助燃鼓风机9，所述煤粉燃料输入漏斗8中设置有煤粉燃料投料螺杆10，所述煤粉燃料输入漏斗8和所述煤粉燃料投料螺杆10均竖直设置；所述助燃鼓风机9的出风口一端连接所述煤粉空气混合管路3，所述助燃鼓风机9的进风口一端连通所述水泥熟料电集尘器6的尾气排出端。所述熟化回转窑筒1的轴向两端开口，且所述熟化回转窑筒1的上游端设置有回转窑上游安装座11，所述熟化回转窑筒1的下游端设置有回转窑下游安装座12，所述回转窑上游安装座11的顶部设置有水泥生料投料口13，所述回转窑下游安装座12的底部设置有水泥熟料排料口14。设置所述煤粉燃料投料螺杆10，可以控制煤粉的投料速率同时可以防止所述煤粉空气混合管路3中的气体从所述煤粉燃料输入漏斗8中外泄。As preferably, the upstream end of the gas combustion heating cylinder 2 communicates with the heating tail gas discharge pipeline 7, and the pulverized coal air mixing pipeline 3 connects the pulverized coal fuel input funnel 8 and the combustion-supporting blower 9, and the pulverized coal fuel input funnel 8 is provided with a pulverized coal fuel feeding screw 10, the pulverized coal fuel input funnel 8 and the pulverized coal fuel feeding screw 10 are all vertically arranged; one end of the air outlet of the combustion-supporting blower 9 is connected to the pulverized coal air mixing tube Road 3, one end of the air inlet of the combustion-supporting blower 9 is connected to the tail gas discharge end of the cement clinker electric dust collector 6 . Both axial ends of the aging rotary kiln barrel 1 are open, and the upstream end of the aging rotary kiln barrel 1 is provided with a rotary kiln upstream mounting seat 11, and the downstream end of the aging rotary kiln barrel 1 is provided with a rotary kiln downstream installation Seat 12, the top of the upstream mounting seat 11 of the rotary kiln is provided with a cement raw meal feeding port 13, and the bottom of the downstream mounting seat 12 of the rotary kiln is provided with a cement clinker discharge port 14. Setting the pulverized coal fuel feeding screw 10 can control the pulverized coal feeding rate and prevent the gas in the pulverized coal air mixing pipeline 3 from leaking from the pulverized coal fuel input funnel 8 .
作为优选的，所述水泥生料投料口13的上方设置有水泥生料投料斗15，所述水泥熟料排料口14连通所述水泥熟料冷却仓4的上游端顶部；所述熟料冷却鼓风管5一端连接所述水泥熟料冷却仓4，所述熟料冷却鼓风管5的另一端连接熟料冷却鼓风机16。所述熟化回转窑筒1的外侧设置有窑筒回转支撑环17，所述窑筒回转支撑环17位于所述回转窑上游安装座11和所述回转窑下游安装座12之间，且所述窑筒回转支撑环17同轴套装在所述熟化回转窑筒1上，所述窑筒回转支撑环17的内侧设置有若干窑筒回转驱动轮18，若干所述窑筒回转驱动轮18的辊面均紧贴所述熟化回转窑筒1的外侧面，且若干所述窑筒回转驱动轮18的轴线均平行于所述熟化回转窑筒1的轴线。As preferably, a cement raw meal feeding hopper 15 is arranged above the cement raw meal feeding port 13, and the cement clinker discharging port 14 communicates with the top of the upstream end of the cement clinker cooling bin 4; the clinker One end of the cooling blast pipe 5 is connected to the cement clinker cooling bin 4 , and the other end of the clinker cooling blast pipe 5 is connected to the clinker cooling blower 16 . The outside of the aging rotary kiln barrel 1 is provided with a kiln barrel rotary support ring 17, the kiln barrel rotary support ring 17 is located between the rotary kiln upstream mounting seat 11 and the rotary kiln downstream mounting seat 12, and the The kiln barrel rotary support ring 17 is coaxially set on the ripening rotary kiln barrel 1, and the inner side of the kiln barrel rotary support ring 17 is provided with several kiln barrel rotary drive wheels 18, and the rollers of several kiln barrel rotary drive wheels 18 The surfaces are all close to the outer surface of the aging rotary kiln barrel 1, and the axes of several kiln barrel rotary driving wheels 18 are parallel to the axis of the aging rotary kiln barrel 1.
作为优选的，还包括设置于所述熟化回转窑筒1和所述气体燃烧加热筒2之间的煅烧输送螺旋叶片19，所述气体燃烧加热筒2与所述熟化回转窑筒1同轴设置，且所述煅烧输送螺旋叶片19的外径与所述熟化回转窑筒1的内径相等，所述煅烧输送螺旋叶片19的内径与所述气体燃烧加热筒2的外径相等，所述煅烧输送螺旋叶片19固定设置于所述熟化回转窑筒1的内侧壁上。Preferably, it also includes a calcining conveying screw blade 19 arranged between the aging rotary kiln barrel 1 and the gas combustion heating cylinder 2, and the gas combustion heating cylinder 2 is coaxially arranged with the aging rotary kiln barrel 1 , and the outer diameter of the calcining conveying screw blade 19 is equal to the inner diameter of the aging rotary kiln barrel 1, the inner diameter of the calcining conveying screw blade 19 is equal to the outer diameter of the gas combustion heating cylinder 2, and the calcining conveying The spiral blade 19 is fixedly arranged on the inner wall of the aging rotary kiln barrel 1 .
工作时，首先通过所述水泥生料投料斗15将水泥生料投入到所述回转窑上游安装座11，通过所述煅烧输送螺旋叶片19将水泥生料带入所述熟化回转窑筒1中并进行煅烧成为熟料，然后进入到所述回转窑下游安装座12，并由所述水泥熟料排料口14排出，进入所述水泥熟料冷却仓4进行冷却。When working, first put the cement raw meal into the upstream mounting base 11 of the rotary kiln through the cement raw meal hopper 15, and bring the cement raw meal into the aging rotary kiln barrel 1 through the calcining conveying screw blade 19 And be calcined to become clinker, then enter the downstream installation seat 12 of the rotary kiln, and be discharged from the cement clinker discharge port 14, and enter the cement clinker cooling bin 4 for cooling.
所述水泥熟料冷却仓4中的冷却空气由所述熟料冷却鼓风管5和所述熟料冷却鼓风机16从外界大气中抽取，在所述水泥熟料冷却仓4中受热后的冷却气随熟料粉尘一同进入所述水泥熟料电集尘器6，然后粉尘与热空气分离，热空气通过所述助燃鼓风机9进入所述煤粉空气混合管路3，从而可以对所述水泥熟料冷却仓4中的余热进行回收利用。The cooling air in the cement clinker cooling bin 4 is extracted from the outside atmosphere by the clinker cooling blast pipe 5 and the clinker cooling blower 16, and the cooling air after being heated in the cement clinker cooling bin 4 Gas enters the cement clinker electric precipitator 6 together with the clinker dust, and then the dust is separated from the hot air, and the hot air enters the pulverized coal air mixing pipeline 3 through the combustion-supporting blower 9, so that the cement can be The waste heat in the clinker cooling bin 4 is recycled.
以上对本发明的较佳实施进行了具体说明，当然，本发明还可以采用与上述实施方式不同的形式，熟悉本领域的技术人员在不违背本发明精神的前提下所作的等同的变换或相应的改动，都应该属于本发明的保护范围内。The preferred implementation of the present invention has been described in detail above. Of course, the present invention can also adopt different forms from the above-mentioned embodiments. Those skilled in the art can make equivalent transformations or corresponding equivalents without violating the spirit of the present invention. Any changes should fall within the protection scope of the present invention.
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| CN116202313A (en) * | 2023-03-08 | 2023-06-02 | 江苏鹏飞集团股份有限公司 | A low-carbon lithium mineral roasting rotary kiln equipment with waste heat recovery |
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