CN108359759A - AOD stainless steel slag dry process equipment and exhaust heat recovering method - Google Patents
AOD stainless steel slag dry process equipment and exhaust heat recovering method Download PDFInfo
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- CN108359759A CN108359759A CN201810240567.4A CN201810240567A CN108359759A CN 108359759 A CN108359759 A CN 108359759A CN 201810240567 A CN201810240567 A CN 201810240567A CN 108359759 A CN108359759 A CN 108359759A
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- 239000002893 slag Substances 0.000 title claims abstract description 174
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 79
- 239000010935 stainless steel Substances 0.000 title claims abstract description 79
- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000001035 drying Methods 0.000 title claims description 6
- 239000000428 dust Substances 0.000 claims abstract description 109
- 238000007789 sealing Methods 0.000 claims abstract description 85
- 239000000843 powder Substances 0.000 claims abstract description 72
- 238000001816 cooling Methods 0.000 claims abstract description 64
- 239000002918 waste heat Substances 0.000 claims abstract description 47
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 238000012545 processing Methods 0.000 claims abstract description 22
- 238000011084 recovery Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 14
- 239000003546 flue gas Substances 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 14
- 230000000694 effects Effects 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 238000010298 pulverizing process Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 6
- 238000000227 grinding Methods 0.000 claims description 6
- 238000000265 homogenisation Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 239000002826 coolant Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000009916 joint effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 239000011819 refractory material Substances 0.000 claims description 2
- 238000005728 strengthening Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000003570 air Substances 0.000 description 46
- 239000000498 cooling water Substances 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000032258 transport Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- JHLNERQLKQQLRZ-UHFFFAOYSA-N calcium silicate Chemical compound [Ca+2].[Ca+2].[O-][Si]([O-])([O-])[O-] JHLNERQLKQQLRZ-UHFFFAOYSA-N 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- 235000012241 calcium silicate Nutrition 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 101150006573 PAN1 gene Proteins 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000010583 slow cooling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
- C21B3/08—Cooling slag
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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
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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
- F27D17/15—Arrangements for using waste heat using boilers
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- 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
- Y02P10/20—Recycling
-
- 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
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
本发明所述的AOD不锈钢渣干式处理设备及余热回收方法，涉及一种AOD不锈钢渣的处理及余热再利用的设备及其使用方法。处理设备包括：密封设备、密封盖、一级除尘器、渣粉库、余热锅炉、二级除尘器、输送装置及连接管路；密封设备顶部装有密封盖；密封设备上的冷却风喷口通过管i与冷却风机相连接；密封设备壁上的吸尘喇叭口通过管ii与一级除尘器侧壁上部相连通；一级除尘器的底部的出料口通过输送设备i与渣粉库相连接；一级除尘器顶部的出风口通过管iii与余热锅炉相连接；余热锅炉通过管iv与二级除尘器相连接；二级除尘器底部的出料口通过输送设备ii与渣粉库相连接；二级除尘器通过管v与负压风机相连接，负压风机相通过管vi与外部大气相连接。本发明具有结构新颖、加工简便、使用方便、环保除尘、钢渣无需二次加工等特点。
The AOD stainless steel slag dry treatment equipment and the waste heat recovery method of the present invention relate to a kind of AOD stainless steel slag treatment and waste heat reuse equipment and a use method thereof. The processing equipment includes: sealing equipment, sealing cover, primary dust collector, slag powder storage, waste heat boiler, secondary dust collector, conveying device and connecting pipeline; sealing cover is installed on the top of sealing equipment; cooling air nozzle on sealing equipment passes through Pipe i is connected with the cooling fan; the dust suction horn on the wall of the sealing equipment is connected with the upper part of the side wall of the primary dust collector through pipe ii; the discharge port at the bottom of the primary dust collector is connected with the slag powder storage through the conveying equipment i connection; the air outlet on the top of the primary dust collector is connected to the waste heat boiler through the pipe iii; the waste heat boiler is connected to the secondary dust collector through the pipe iv; the discharge port at the bottom of the secondary dust collector is connected to the slag powder storage through the conveying equipment ii Connection; the secondary dust collector is connected to the negative pressure fan through the pipe v, and the negative pressure fan is connected to the external atmosphere through the pipe vi. The invention has the characteristics of novel structure, simple processing, convenient use, environmental protection and dust removal, no secondary processing of steel slag and the like.
Description
技术领域technical field
本发明所述的AOD不锈钢渣(400系)干式处理设备及余热回收方法，涉及一种AOD不锈钢渣的处理及余热再利用的设备及其使用方法。AOD stainless steel slag (400 series) dry processing equipment and waste heat recovery method described in the present invention relate to a kind of AOD stainless steel slag treatment and waste heat reuse equipment and its use method.
背景技术Background technique
目前公知的AOD不锈钢渣处理方法，具有典型意义的是“湿法”和“半干法”。“半干法”又分为“渣盘半干法”和“热泼半干法”。“渣盘半干法”是由“热泼半干法”衍化而来。Currently known AOD stainless steel slag treatment methods are typically "wet method" and "semi-dry method". "Semi-dry method" is divided into "slag pan semi-dry method" and "hot splash semi-dry method". The "slag pan semi-dry method" is derived from the "hot splash semi-dry method".
AOD不锈钢渣“湿法”处理工艺分为四个步骤：第一步是将盛放熔融状态AOD不锈钢渣的渣盘(或罐、桶)在大气中静置，待热量散失到一定程度后(渣温降到一定温度)，对其实施喷淋冷却水,除部分冷却水直接蒸发掉以外，还有部分冷却水未能蒸发掉而形成水流、流淌；喷淋水使渣温彻底降至常温的同时，也使AOD不锈钢自冷渣粉与过多、过量的冷却水混合形成了渣泥泥浆，然后转入堆场，分类堆放、沥水。第二步等渣泥中的水份降低到适合水份时，再去筛分、破碎、渣钢分类。第三步是渣泥过滤、干燥处理。第四步是污水处理。The "wet" treatment process of AOD stainless steel slag is divided into four steps: the first step is to place the slag pan (or tank, barrel) containing the molten AOD stainless steel slag in the atmosphere, and wait for the heat to be lost to a certain extent ( slag temperature drops to a certain temperature), spray cooling water on it, except that part of the cooling water evaporates directly, and some cooling water fails to evaporate to form water flow and flow; spray water to completely reduce the slag temperature to normal temperature At the same time, the AOD stainless steel self-cooling slag powder is mixed with excessive and excessive cooling water to form a slag mud slurry, which is then transferred to the storage yard, classified and stacked, and drained. In the second step, when the water content in the slag sludge is reduced to a suitable water content, then go to screening, crushing, and slag steel classification. The third step is sludge filtration and drying. The fourth step is sewage treatment.
AOD不锈钢渣“渣盘半干法”处理工艺分为两步：第一步将盛放熔融状态AOD不锈钢渣的渣盘(或罐、桶)置于钢渣车间，直接向盛有热态AOD不锈钢渣的渣盘(或罐、桶)喷淋冷却水使其降温，但喷琳水量以钢渣热量使喷淋的水直接蒸发而不发生流淌为限。第二步，将渣温降至常温后的渣钢与尾渣渣粉的混合物在钢渣处理渣跨车间倒出，进入渣钢、渣粉分离阶段，固态渣钢回收，大片渣钢使用吊锤破碎，渣粉另用，“半干法”处理AOD不锈钢渣作业环境恶劣，扬尘严重。AOD stainless steel slag "slag tray semi-dry method" treatment process is divided into two steps: the first step is to place the slag tray (or tank, barrel) containing molten AOD stainless steel slag in the steel slag workshop, and directly pour it into the hot AOD stainless steel slag. The slag pan (or tank, barrel) of slag is sprayed with cooling water to cool it down, but the amount of sprayed water is limited to the fact that the heat of the steel slag makes the sprayed water evaporate directly without flowing. In the second step, the mixture of slag steel and tailing slag powder after the slag temperature is lowered to normal temperature is poured out in the steel slag treatment slag crossing workshop, and enters the separation stage of slag steel and slag powder, and the solid slag steel is recovered, and large pieces of slag steel are recovered using a hanging hammer Broken, the slag powder is used separately, and the "semi-dry method" processing AOD stainless steel slag has a harsh working environment and severe dust.
“热泼半干法”工艺也分为两步：第一步将熔融状态AOD不锈钢渣直接倾倒于钢渣车间地上，并直接向热态AOD不锈钢渣喷淋冷却水使其降温，其喷水量以钢渣热量使喷淋的水直接蒸发而不流淌为限度。第二步，将渣温降至常温后的渣钢与尾渣渣粉的混合物，转入渣钢、渣粉分离阶段，大片渣钢使用吊锤破碎，渣粉他用。The "hot pouring semi-dry method" process is also divided into two steps: the first step is to pour the molten AOD stainless steel slag directly on the floor of the steel slag workshop, and directly spray cooling water on the hot AOD stainless steel slag to cool it down. The limit is that the heat of steel slag makes the sprayed water evaporate directly without flowing. In the second step, the mixture of slag steel and tailing slag powder after the slag temperature has been lowered to normal temperature is transferred to the separation stage of slag steel and slag powder.
两种方法的区别(优缺点)：“半干法”流程短、工艺简单，没有渣泥处理和污水处理环节。但是，两种方法在喷淋降温过程中，都存在AOD不锈钢渣遇冷自粉的粉尘随热气流(水蒸气)上升、升腾而产生扬尘污染问题。扬尘污染程度大小，取决于钢渣热焓多少。The difference between the two methods (advantages and disadvantages): the "semi-dry method" has a short process, a simple process, and no sludge treatment and sewage treatment links. However, in the process of spraying and cooling in both methods, there is a problem of dust pollution caused by AOD stainless steel slag meeting cold self-powdering dust rising and rising with hot air (water vapor). The degree of dust pollution depends on the enthalpy of steel slag.
针对上述现有技术中所存在的问题，研究设计一种新型的AOD不锈钢渣干式处理设备及余热回收方法，从而克服现有技术中所存在的问题是十分必要的。In view of the above-mentioned problems in the prior art, it is necessary to study and design a new type of AOD stainless steel slag dry treatment equipment and waste heat recovery method, so as to overcome the problems in the prior art.
发明内容Contents of the invention
鉴于上述现有技术中所存在的问题，本发明的目的是研究设计一种新型的AOD不锈钢渣干式处理设备及余热回收方法。利用AOD不锈钢渣“遇冷自粉”的特性，在密闭的空间内，利用环境空气作为冷却介质，采用负压抽吸原理排出“遇冷自粉”的渣粉，对AOD不锈钢渣进行完全干式的处理；从而实现整个处理过程不产生扬尘污染、不产生泥水污染、无需后期各种分离工序的干式处理方式同时对处理过程中的余热进行有效回收。In view of the problems existing in the above-mentioned prior art, the purpose of the present invention is to research and design a novel AOD stainless steel slag dry processing equipment and waste heat recovery method. Utilizing the characteristics of AOD stainless steel slag "self powder when it is cold", in a closed space, using ambient air as the cooling medium, using the principle of negative pressure suction to discharge the "self powder when it is cold" slag powder, and completely drying the AOD stainless steel slag In this way, the whole treatment process does not produce dust pollution, does not produce muddy water pollution, and does not need a dry treatment method of various separation processes in the later stage, and effectively recovers the waste heat in the treatment process.
本发明的技术解决方案是这样实现的：Technical solution of the present invention is realized like this:
本发明所述的AOD不锈钢渣干式处理设备，其特征在于所述的AOD不锈钢渣干式处理设备包括：密封设备、密封盖、一级除尘器、渣粉库、余热锅炉、二级除尘器、输送装置及连接管路；The AOD stainless steel slag dry processing equipment described in the present invention is characterized in that the AOD stainless steel slag dry processing equipment includes: sealing equipment, sealing cover, primary dust collector, slag powder storage, waste heat boiler, secondary dust collector , conveying device and connecting pipeline;
本发明所述的密封设备顶部装有密封盖；The top of the sealing device of the present invention is equipped with a sealing cover;
本发明所述的密封设备上设置有多个冷却风喷口，冷却风喷口通过管i与冷却风机相连接；The sealing device of the present invention is provided with a plurality of cooling air spouts, and the cooling air spouts are connected to the cooling fan through the pipe i;
本发明所述的密封设备壁上设置有吸尘喇叭口，吸尘喇叭口通过管ii与一级除尘器侧壁上部相连通；The wall of the sealing device described in the present invention is provided with a dust suction bell mouth, and the dust suction bell mouth communicates with the upper part of the side wall of the first-stage dust collector through the pipe ii;
本发明所述的一级除尘器的底部设置有出料口，出料口通过输送设备i与渣粉库相连接；一级除尘器顶部设置有出风口，出风口通过管iii与余热锅炉相连接；The bottom of the first-stage dust collector of the present invention is provided with a discharge port, which is connected to the slag powder warehouse through the conveying equipment i; the top of the first-stage dust collector is provided with an air outlet, and the air outlet is connected to the waste heat boiler through the pipe iii connect;
本发明所述的余热锅炉通过管iv与二级除尘器相连接；The waste heat boiler of the present invention is connected with the secondary dust collector through the pipe iv;
本发明所述的二级除尘器的底部为出料口，出料口通过输送设备ii与渣粉库相连接；二级除尘器通过管v与负压风机相连接；The bottom of the secondary dust collector described in the present invention is the discharge port, and the discharge port is connected with the slag powder warehouse through the conveying equipment ii; the secondary dust collector is connected with the negative pressure fan through the pipe v;
本发明所述的负压风机通过管vi与外部大气相连接。The negative pressure blower described in the present invention is connected with the external atmosphere through the pipe vi.
本发明所述的一级除尘器为旋风式除尘器，旋风式除尘器内部砌筑耐火材料，减少热量损失，提高系统效率。The primary dust collector described in the present invention is a cyclone dust collector, and refractory materials are built inside the cyclone dust collector to reduce heat loss and improve system efficiency.
本发明所述的二级除尘器为袋式除尘器。The secondary dust collector described in the present invention is a bag dust collector.
本发明所述的密闭设备可以设置为地坑式，也可以设置为地上式。The airtight device of the present invention can be set as a pit type, or as an above-ground type.
本发明所述的管i一端连接冷却风喷口，另一端可以不接冷却风机，直接与外部大气相连通。One end of the pipe i described in the present invention is connected to the cooling air spout, and the other end may not be connected to the cooling fan, and directly communicates with the external atmosphere.
本发明所述的密封设备内部底板设计成均匀的循环流化床形式的通风底板，通风底板表面敷设一定厚度的干燥的鹅卵石，鹅卵石按粒径不同分为若干层，增加均化效果。The internal bottom plate of the sealing device of the present invention is designed as a uniform circulating fluidized bed ventilated bottom plate, and dry pebbles of a certain thickness are laid on the surface of the ventilated bottom plate, and the pebbles are divided into several layers according to different particle sizes to increase the homogenization effect.
本发明所述的密封设备与密封盖之间设有迷宫水封，密封设备的挡墙上端成凹陷形，密封盖的下端呈凸起形，扣合时凹凸配合，凹槽中间施以液态水形成水封，强化密封效果。A labyrinth water seal is provided between the sealing device and the sealing cover of the present invention. The upper end of the retaining wall of the sealing device is in a concave shape, and the lower end of the sealing cover is in a convex shape. Form a water seal and strengthen the sealing effect.
一种基于权利要求1所述的AOD不锈钢渣干式处理设备的余热回收方法，其特征在于所述的余热回收方法为：A waste heat recovery method based on the AOD stainless steel slag dry treatment equipment described in claim 1, characterized in that the waste heat recovery method is:
1)、AOD不锈钢渣经过渣盘吊运，倾倒于密闭设备之内，密闭设备内所盛AOD不锈钢渣的体积量，可以达到密闭设备容积的(75～85)％，而且AOD不锈钢渣必须埋过(渣面高过)最上层冷却风喷口；密封盖扣合于密闭设备之上，形成密闭空间；由冷却风机i通过管i、经由冷却风喷口向密闭设备内鼓入环境温度空气，以环境温度空气为冷却介质、冷却AOD不锈钢渣；1) The AOD stainless steel slag is lifted by the slag pan and dumped into the airtight equipment. The volume of the AOD stainless steel slag contained in the airtight equipment can reach (75-85)% of the volume of the airtight equipment, and the AOD stainless steel slag must be buried Pass through (the slag surface is higher than) the cooling air nozzle on the uppermost layer; the sealing cover is fastened on the airtight equipment to form a closed space; the cooling fan i blows ambient temperature air into the airtight equipment through the pipe i and the cooling air nozzle to Ambient temperature air is the cooling medium to cool AOD stainless steel slag;
2)、AOD不锈钢渣主要成份是CaO和SiO2，在CaO-SiO2体系中，存在2CaO.SiO2即正硅酸钙(简写C2S)，在降温过程中2CaO.SiO2晶相结构会发生变化；AOD不锈钢渣在缓冷条件下α'-C2S将转变形成γ-C2S，密度下降，导致钢渣体积膨胀11.45％，同时释放热量，产生巨大体积应力，使钢渣粉化，因此具有“遇冷自粉”特性(因AOD不锈钢冶炼时渣的密度、碱度不同，其“遇冷自粉”临界温度区间也各有不同)；但如果是骤冷(急冷)条件下，那么α'-C2S将形成β-C2S，而β型硅酸二钙不易粉化；利用AOD不锈钢渣遇冷自粉的特性，冷却风机i和负压风机ii采用变频调速方法，来调节密闭设备内部冷却空气量和内部温度，使其按照产生γ型C2S要求，来使用、调整冷却风机i和负压风机ii，达到使AOD不锈钢渣在以空气为介质干式冷却过程中完全粉化目的；2) The main components of AOD stainless steel slag are CaO and SiO 2 . In the CaO-SiO 2 system, there is 2CaO.SiO 2 , namely calcium orthosilicate (abbreviated as C 2 S). During the cooling process, the crystal phase structure of 2CaO.SiO 2 Changes will occur; AOD stainless steel slag will transform into γ-C 2 S under slow cooling conditions, and the density will decrease, causing the volume of steel slag to expand by 11.45%. , so it has the characteristics of "self-powdering when cold" (due to the different density and alkalinity of the slag during AOD stainless steel smelting, the critical temperature range of "self-powdering when cold" is also different); but if it is quenched (Quick cooling) , then α'-C 2 S will form β-C 2 S, and β-type dicalcium silicate is not easy to pulverize; using the characteristics of AOD stainless steel slag self-pulverizing when it is cooled, cooling fan i and negative pressure fan ii adopt frequency conversion speed regulation method, to adjust the internal cooling air volume and internal temperature of the airtight equipment, so that it can use and adjust the cooling fan i and the negative pressure fan ii according to the requirements of producing γ-type C2S, so as to achieve the dry cooling process of AOD stainless steel slag with air as the medium For the purpose of complete pulverization;
3)、在冷却风机i鼓入的冷却空气作用下，密闭设备内的AOD不锈钢渣逐渐冷却，降至自粉临界温度，开始连续自粉，粉化细度在50(60)～180目不等；高温AOD不锈钢渣由(1650～1450)℃前后冷却到自粉临界温度过程中，AOD不锈钢渣中余热交换给了进入密闭设备内的空气，完成了第一次“固-气”热交换，使AOD不锈钢渣温度下降，而冷却空气温度得以上升，自粉粉尘与升温后的空气混合形成含尘热烟气；含尘热烟气与冷却气流形成了AOD不锈钢渣自粉粉尘“紊流”；与此同时，在负压风机ii抽吸作用下，AOD不锈钢渣粉的“紊流”，通过吸尘喇叭口汇集再经管ii,将冷却至自粉温度的渣粉与热烟气混合物送入一级旋风式除尘器，在高温状态下进行AOD不锈钢渣粉尘捕集，并通过输送设备i将自粉渣粉输送至渣粉库储存；3) Under the action of the cooling air blown by the cooling fan i, the AOD stainless steel slag in the closed equipment is gradually cooled down to the critical temperature of self-powdering, and starts to self-powder continuously, and the pulverization fineness is between 50 (60) and 180 mesh. etc.; during the cooling of high-temperature AOD stainless steel slag from (1650～1450) °C to the critical temperature of self-powder, the waste heat exchange in AOD stainless steel slag is given to the air entering the closed equipment, and the first "solid-gas" heat exchange is completed , so that the temperature of the AOD stainless steel slag drops, and the temperature of the cooling air rises, and the self-powder dust is mixed with the heated air to form a hot dusty flue gas; "; at the same time, under the suction of the negative pressure fan ii, the "turbulent flow" of AOD stainless steel slag powder is collected through the vacuum bell mouth and then passed through the tube ii, and the mixture of slag powder and hot flue gas cooled to the temperature of the self-powder Send it to the first-stage cyclone dust collector, collect AOD stainless steel slag dust at high temperature, and transport the self-powder slag powder to the slag powder warehouse for storage through the conveying equipment i;
4)、出一级旋风式除尘器的热风，携带着第一次热交换得到的热焓，通过管iii进入余热锅炉；在余热锅炉内，将热烟气中的热焓，再交换给余热锅炉内做功的工质水，完成第二次“气-液”热交换，使余热锅炉内工质水温上升，形成饱和蒸汽，可以去烘干、供热、发电等；而热烟气温度得以下降，温度下降后依然含有粉尘的气体，进入二级袋式除尘器，再次捕集粉尘，净化后的气体，在负压风机ii作用下，通过管vi有组织排入大气；通过二级袋式除尘器收集下来的自粉渣粉，经输送设备ii送入渣粉库存储；4) The hot air coming out of the first-stage cyclone dust collector carries the enthalpy obtained by the first heat exchange, and enters the waste heat boiler through the pipe iii; in the waste heat boiler, the enthalpy in the hot flue gas is exchanged to the waste heat The working medium water in the boiler completes the second "gas-liquid" heat exchange, so that the temperature of the working medium water in the waste heat boiler rises to form saturated steam, which can be used for drying, heating, power generation, etc.; and the temperature of the hot flue gas can be After the temperature drops, the gas still containing dust enters the secondary bag filter to collect the dust again, and the purified gas is discharged into the atmosphere through the pipe vi under the action of the negative pressure fan ii; through the secondary bag The self-slag powder collected by the type dust collector is sent to the slag powder warehouse for storage through the conveying equipment ii;
5)、在冷却风机i和负压风机ii的共同作用下，密闭设备中AOD不锈钢渣被冷却，自粉渣粉被吸走，渣密闭设备内部剩余物质是渣钢，此时，打开密封盖，由斗容1.2m3挖掘机(或吊车抓斗)将密闭设备内所剩渣钢挖出，由运输车辆运至渣钢堆场堆存。5) Under the joint action of cooling fan i and negative pressure fan ii, the AOD stainless steel slag in the airtight equipment is cooled, self-powder slag powder is sucked away, and the remaining material in the slag airtight equipment is slag steel. At this time, open the sealing cover , Excavator with a bucket capacity of 1.2m 3 (or crane grab) digs out the remaining slag steel in the airtight equipment, and transports it to the slag steel yard for storage by transport vehicles.
为减少热量损失，提高热效率，密闭设备3、管ii-G-2、iii-G-3、iv-G-4、v-G-5以及一级旋风式除尘器6、二级除尘器10均需作保温处理。In order to reduce heat loss and improve thermal efficiency, airtight equipment 3, pipes ii-G-2, iii-G-3, iv-G-4, v-G-5, primary cyclone dust collector 6, and secondary dust collector 10 all require For heat preservation.
本发明的优点是显而易见的，主要表现在：Advantage of the present invention is obvious, mainly shows in:
本发明具有结构新颖、加工简便、使用方便、环保除尘、钢渣无需二次加工等优点，投入市场必将产生积极的社会效益。The invention has the advantages of novel structure, simple processing, convenient use, environmental protection and dust removal, no need for secondary processing of steel slag, etc., and will certainly produce positive social benefits when put into the market.
附图说明Description of drawings
本发明共有6幅附图,其中：The present invention has 6 drawings, wherein:
附图1为本发明密封装置设置为地坑式的结构示意图；Accompanying drawing 1 is the structure schematic diagram that sealing device of the present invention is arranged as pit type;
附图2为本发明密封装置设置为地上式的结构示意图；Accompanying drawing 2 is the structure schematic diagram that sealing device of the present invention is arranged as ground type;
附图3为多个本发明并排设置的俯视图；Accompanying drawing 3 is the top view that a plurality of present inventions are arranged side by side;
附图4为本发明密封装置设置为地坑式，并且无冷却风机的结构示意图；Accompanying drawing 4 is that the sealing device of the present invention is arranged as pit type, and the structural schematic diagram that does not have cooling fan;
附图5为本发明密封装置设置为地上式，并且无冷却风机的结构示意图；Accompanying drawing 5 is that the sealing device of the present invention is arranged as the above-ground type, and has the schematic structural view of cooling fan;
附图6为AOD不锈钢渣冷却过程相变示意图。Accompanying drawing 6 is the schematic diagram of the phase transformation of AOD stainless steel slag cooling process.
在图中：1、渣盘，2、冷却风喷口，3、密闭设备(容器)，4、密封盖，5、热风及吸尘喇叭口，6、一级除尘器，7、渣粉库，8、余热锅炉，10、二级除尘器，11-1、输送设备i，11-2、输送设备ii，F-1、冷却风机i，F-2、负压风机ii，G-1、管i，G-2、管ii，G-3、管iii，G-4、管iv，G-5、管vi，G-6、管vii。In the figure: 1. Slag pan, 2. Cooling air nozzle, 3. Airtight equipment (container), 4. Sealing cover, 5. Hot air and dust suction bell mouth, 6. Primary dust collector, 7. Slag powder storage, 8. Waste heat boiler, 10. Secondary dust collector, 11-1, conveying equipment i, 11-2, conveying equipment ii, F-1, cooling fan i, F-2, negative pressure fan ii, G-1, pipe i, G-2, tube ii, G-3, tube iii, G-4, tube iv, G-5, tube vi, G-6, tube vii.
具体实施方式Detailed ways
具体实施方式1Specific implementation mode 1
本发明的具体实施例如附图1和3所示，AOD不锈钢渣干式处理设备包括：密封设备3、密封盖4、一级除尘器6、渣粉库7、余热锅炉8、二级除尘器10、输送装置及连接管路；The specific embodiment of the present invention is shown in Figures 1 and 3. The AOD stainless steel slag dry treatment equipment includes: sealing equipment 3, sealing cover 4, primary dust collector 6, slag powder storehouse 7, waste heat boiler 8, secondary dust collector 10. Conveying device and connecting pipeline;
密封设备3为地坑式；顶部装有密封盖4，密封设备3与密封盖4之间设有迷宫水封，密封设备3的挡墙上端成凹陷形，密封盖4的下端呈凸起形，扣合时凹凸配合，凹槽中间施以液态水形成水封，强化密封效果。The sealing device 3 is pit type; the top is equipped with a sealing cover 4, and a labyrinth water seal is arranged between the sealing device 3 and the sealing cover 4. The upper end of the retaining wall of the sealing device 3 is concave, and the lower end of the sealing cover 4 is convex. , Concave-convex fit when fastening, and liquid water is applied in the middle of the groove to form a water seal to strengthen the sealing effect.
密封设备3上设置有多个冷却风喷口2，冷却风喷口2通过管iG-1与冷却风机F-1相连接；The sealing device 3 is provided with a plurality of cooling air nozzles 2, and the cooling air nozzles 2 are connected to the cooling fan F-1 through the pipe iG-1;
密封设备3壁上设置有吸尘喇叭口5，吸尘喇叭口5通过管iiG-2与一级除尘器6侧壁上部相连通；The wall of the sealing device 3 is provided with a vacuum bell mouth 5, and the vacuum bell mouth 5 communicates with the upper part of the side wall of the primary dust collector 6 through the pipe iiG-2;
一级除尘器6为旋风式除尘器，其底部设置有出料口，出料口通过输送设备i11-1与渣粉库7相连接；一级除尘器6顶部设置有出风口，出风口通过管iiiG-3与余热锅炉8相连接；The first-stage dust collector 6 is a cyclone dust collector, and its bottom is provided with a discharge port, which is connected to the slag powder warehouse 7 through the conveying equipment i11-1; the top of the first-stage dust collector 6 is provided with an air outlet, and the air outlet passes through Tube iiiG-3 is connected with waste heat boiler 8;
余热锅炉8通过管ivG-4与二级除尘器10相连接；The waste heat boiler 8 is connected with the secondary dust collector 10 through the pipe ivG-4;
二级除尘器10为袋式除尘器，其底部为出料口，出料口通过输送设备ii11-2与渣粉库7相连接；二级除尘器10通过管vG-5与负压风机F-2相连接；The secondary dust collector 10 is a bag filter, the bottom of which is the discharge port, and the discharge port is connected to the slag powder warehouse 7 through the conveying equipment ii11-2; the secondary dust collector 10 is connected to the negative pressure fan F through the pipe vG-5 -2 connected;
负压风机F-2通过管viG-6与外部大气相连接。The negative pressure fan F-2 is connected with the external atmosphere through the pipe viG-6.
密封设备3内部底板设计成均匀的循环流化床形式的通风底板，通风底板表面敷设一定厚度的干燥的鹅卵石，鹅卵石按粒径不同分为若干层，增加均化效果。The internal bottom plate of the sealing device 3 is designed as a uniform circulating fluidized bed ventilated bottom plate, and a certain thickness of dry pebbles are laid on the surface of the ventilated bottom plate, and the pebbles are divided into several layers according to different particle sizes to increase the homogenization effect.
AOD不锈钢渣干式处理设备的余热回收方法为：The waste heat recovery method of AOD stainless steel slag dry treatment equipment is as follows:
1)、AOD不锈钢渣经过渣盘1吊运，倾倒于密闭设备3之内，密闭设备3内所盛AOD不锈钢渣的体积量，可以达到密闭设备3容积的75～85％，而且AOD不锈钢渣必须埋过渣面高过最上层冷却风喷口2；密封盖4扣合于密闭设备3之上，形成密闭空间；由冷却风机iF-1通过管iG-1、经由冷却风喷口2向密闭设备3内鼓入环境温度空气，以环境温度空气为冷却介质、冷却AOD不锈钢渣；1) The AOD stainless steel slag is lifted by the slag pan 1 and poured into the airtight equipment 3. The volume of the AOD stainless steel slag contained in the airtight equipment 3 can reach 75-85% of the volume of the airtight equipment 3, and the AOD stainless steel slag The slag surface must be buried higher than the top cooling air nozzle 2; the sealing cover 4 is fastened on the airtight device 3 to form a closed space; the cooling fan iF-1 passes through the pipe iG-1 and the cooling air nozzle 2 to the airtight device 3 Ambient temperature air is blown into the interior, and the ambient temperature air is used as the cooling medium to cool the AOD stainless steel slag;
2)、利用AOD不锈钢渣遇冷自粉的特性，来使用、调整冷却风机iF-1和负压风机iiF-2，达到使AOD不锈钢渣在以空气为介质干式冷却过程中完全粉化目的；2) Use and adjust the cooling fan iF-1 and negative pressure fan iiF-2 by using the characteristics of AOD stainless steel slag when it is cooled, so as to achieve the purpose of completely pulverizing AOD stainless steel slag in the dry cooling process with air as the medium ;
3)、在冷却风机iF-1鼓入的冷却空气作用下，密闭设备3内的AOD不锈钢渣逐渐冷却，降至自粉临界温度，开始连续自粉，粉化细度在5060～180目不等；高温AOD不锈钢渣由1650～1450℃前后冷却到自粉临界温度过程中，AOD不锈钢渣中余热交换给了进入密闭设备3内的空气，完成了第一次“固-气”热交换，使AOD不锈钢渣温度下降，而冷却空气温度得以上升，自粉粉尘与升温后的空气混合形成含尘热烟气；含尘热烟气与冷却气流形成了AOD不锈钢渣自粉粉尘“紊流”；与此同时，在负压风机iiF-2抽吸作用下，AOD不锈钢渣粉的“紊流”，通过吸尘喇叭口5汇集再经管iiG-2,将冷却至自粉温度的渣粉与热烟气混合物送入一级旋风式除尘器6，在高温状态下进行AOD不锈钢渣粉尘捕集，并通过输送设备i11-1将自粉渣粉输送至渣粉库7储存；3) Under the action of the cooling air blown by the cooling fan iF-1, the AOD stainless steel slag in the airtight equipment 3 is gradually cooled down to the critical temperature of self-powdering, and starts to self-powder continuously, and the pulverization fineness is 5060-180 mesh. etc.; in the process of cooling the high-temperature AOD stainless steel slag from 1650 to 1450 °C to the critical temperature of self-powder, the residual heat in the AOD stainless steel slag is exchanged to the air entering the closed equipment 3, and the first "solid-gas" heat exchange is completed. The temperature of the AOD stainless steel slag is lowered, while the temperature of the cooling air is raised, and the self-powder dust is mixed with the heated air to form a dust-laden hot flue gas; the dust-laden hot flue gas and the cooling air flow form a "turbulent flow" of the AOD stainless steel slag self-dust dust At the same time, under the suction of the negative pressure fan iiF-2, the "turbulent flow" of the AOD stainless steel slag powder is collected through the vacuum bell mouth 5 and then passed through the tube iiG-2, and the slag powder cooled to the self-powder temperature and the The hot flue gas mixture is sent to the first-stage cyclone dust collector 6, and the AOD stainless steel slag dust is collected at high temperature, and the self-powder slag powder is transported to the slag powder warehouse 7 through the conveying equipment i11-1 for storage;
4)、出一级旋风式除尘器6的热风，携带着第一次热交换得到的热焓，通过管iiiG-3进入余热锅炉8；在余热锅炉8内，将热烟气中的热焓，再交换给余热锅炉8内做功的工质水，完成第二次“气-液”热交换，使余热锅炉8内工质水温上升，形成饱和蒸汽，可以去烘干、供热、发电等；而热烟气温度得以下降，温度下降后依然含有粉尘的气体，进入二级袋式除尘器10，再次捕集粉尘，净化后的气体，在负压风机iiF-2作用下，通过管viG-6有组织排入大气；通过二级袋式除尘器10收集下来的自粉渣粉，经输送设备ii11-2送入渣粉库7存储；4), the hot air from the primary cyclone dust collector 6 carries the heat enthalpy obtained by the first heat exchange, and enters the waste heat boiler 8 through the pipe iiiG-3; in the waste heat boiler 8, the heat enthalpy in the hot flue gas , and then exchanged to the working medium water in the waste heat boiler 8 to complete the second "gas-liquid" heat exchange, so that the temperature of the working medium water in the waste heat boiler 8 rises to form saturated steam, which can be used for drying, heating, power generation, etc. ; while the temperature of the hot flue gas can be reduced, the gas that still contains dust after the temperature drops enters the secondary bag filter 10 to capture the dust again, and the purified gas passes through the pipe viG under the action of the negative pressure fan iiF-2 -6 is discharged into the atmosphere in an organized manner; the self-slag powder collected by the secondary bag filter 10 is sent to the slag powder warehouse 7 for storage through the conveying equipment ii11-2;
5)、在冷却风机iF-1和负压风机iiF-2的共同作用下，密闭设备3中AOD不锈钢渣被冷却，自粉渣粉被吸走，渣密闭设备3内部剩余物质是渣钢，此时，打开密封盖4，由斗容1.2m3挖掘机(或吊车抓斗)将密闭设备3内所剩渣钢挖出，由运输车辆运至渣钢堆场堆存。5) Under the joint action of the cooling fan iF-1 and the negative pressure fan iiF-2, the AOD stainless steel slag in the airtight device 3 is cooled, and the self-powder slag powder is sucked away, and the remaining material in the slag airtight device 3 is slag steel. At this time, the sealing cover 4 is opened, and the remaining slag steel in the airtight device 3 is dug out by an excavator (or a crane grab) with a bucket capacity of 1.2 m, and transported to the slag steel yard by a transport vehicle for storage.
具体实施方式2Specific implementation mode 2
本发明的具体实施例如附图2所示，AOD不锈钢渣干式处理设备包括：密封设备3、密封盖4、一级除尘器6、渣粉库7、余热锅炉8、二级除尘器10、输送装置及连接管路；The specific embodiment of the present invention is shown in Figure 2, the AOD stainless steel slag dry processing equipment includes: sealing equipment 3, sealing cover 4, primary dust collector 6, slag powder storage 7, waste heat boiler 8, secondary dust collector 10, Conveying device and connecting pipeline;
密封设备3为地上式，设置在房间内；顶部装有密封盖4，密封设备3与密封盖4之间设有迷宫水封，密封设备3的挡墙上端成凹陷形，密封盖4的下端呈凸起形，扣合时凹凸配合，凹槽中间施以液态水形成水封，强化密封效果。The sealing device 3 is an above-ground type and is installed in the room; a sealing cover 4 is installed on the top, and a labyrinth water seal is arranged between the sealing device 3 and the sealing cover 4. It is in a convex shape, and the concave-convex fits when buckled, and liquid water is applied in the middle of the groove to form a water seal, which strengthens the sealing effect.
密封设备3上设置有多个冷却风喷口2，冷却风喷口2通过管iG-1与冷却风机F-1相连接；The sealing device 3 is provided with a plurality of cooling air nozzles 2, and the cooling air nozzles 2 are connected to the cooling fan F-1 through the pipe iG-1;
密封设备3壁上设置有吸尘喇叭口5，吸尘喇叭口5通过管iiG-2与一级除尘器6侧壁上部相连通；The wall of the sealing device 3 is provided with a vacuum bell mouth 5, and the vacuum bell mouth 5 communicates with the upper part of the side wall of the primary dust collector 6 through the pipe iiG-2;
一级除尘器6为旋风式除尘器，其底部设置有出料口，出料口通过输送设备i11-1与渣粉库7相连接；一级除尘器6顶部设置有出风口，出风口通过管iiiG-3与余热锅炉8相连接；The first-stage dust collector 6 is a cyclone dust collector, and its bottom is provided with a discharge port, which is connected to the slag powder warehouse 7 through the conveying equipment i11-1; the top of the first-stage dust collector 6 is provided with an air outlet, and the air outlet passes through Tube iiiG-3 is connected with waste heat boiler 8;
余热锅炉8通过管ivG-4与二级除尘器10相连接；The waste heat boiler 8 is connected with the secondary dust collector 10 through the pipe ivG-4;
二级除尘器10为袋式除尘器，其底部为出料口，出料口通过输送设备ii11-2与渣粉库7相连接；二级除尘器10通过管vG-5与负压风机F-2相连接；The secondary dust collector 10 is a bag filter, the bottom of which is the discharge port, and the discharge port is connected to the slag powder warehouse 7 through the conveying equipment ii11-2; the secondary dust collector 10 is connected to the negative pressure fan F through the pipe vG-5 -2 connected;
负压风机F-2通过管viG-6与外部大气相连接。The negative pressure fan F-2 is connected with the external atmosphere through the pipe viG-6.
密封设备3内部底板设计成均匀的循环流化床形式的通风底板，通风底板表面敷设一定厚度的干燥的鹅卵石，鹅卵石按粒径不同分为若干层，增加均化效果。The internal bottom plate of the sealing device 3 is designed as a uniform circulating fluidized bed ventilated bottom plate, and a certain thickness of dry pebbles are laid on the surface of the ventilated bottom plate, and the pebbles are divided into several layers according to different particle sizes to increase the homogenization effect.
具体实施方式3Specific implementation mode 3
本发明的具体实施例如附图4所示，AOD不锈钢渣干式处理设备包括：密封设备3、密封盖4、一级除尘器6、渣粉库7、余热锅炉8、二级除尘器10、输送装置及连接管路；The specific embodiment of the present invention is shown in Figure 4, AOD stainless steel slag dry processing equipment includes: sealing equipment 3, sealing cover 4, primary dust collector 6, slag powder storage 7, waste heat boiler 8, secondary dust collector 10, Conveying device and connecting pipeline;
密封设备3为地坑式；顶部装有密封盖4，密封设备3与密封盖4之间设有迷宫水封，密封设备3的挡墙上端成凹陷形，密封盖4的下端呈凸起形，扣合时凹凸配合，凹槽中间施以液态水形成水封，强化密封效果。The sealing device 3 is pit type; the top is equipped with a sealing cover 4, and a labyrinth water seal is arranged between the sealing device 3 and the sealing cover 4. The upper end of the retaining wall of the sealing device 3 is concave, and the lower end of the sealing cover 4 is convex. , Concave-convex fit when fastening, and liquid water is applied in the middle of the groove to form a water seal to strengthen the sealing effect.
密封设备3上设置有多个冷却风喷口2，冷却风喷口2通过管iG-1与外部大气相连通；The sealing device 3 is provided with a plurality of cooling air nozzles 2, and the cooling air nozzles 2 communicate with the external atmosphere through the pipe iG-1;
密封设备3壁上设置有吸尘喇叭口5，吸尘喇叭口5通过管iiG-2与一级除尘器6侧壁上部相连通；The wall of the sealing device 3 is provided with a vacuum bell mouth 5, and the vacuum bell mouth 5 communicates with the upper part of the side wall of the primary dust collector 6 through the pipe iiG-2;
一级除尘器6为旋风式除尘器，其底部设置有出料口，出料口通过输送设备i11-1与渣粉库7相连接；一级除尘器6顶部设置有出风口，出风口通过管iiiG-3与余热锅炉8相连接；The first-stage dust collector 6 is a cyclone dust collector, and its bottom is provided with a discharge port, which is connected to the slag powder warehouse 7 through the conveying equipment i11-1; the top of the first-stage dust collector 6 is provided with an air outlet, and the air outlet passes through Tube iiiG-3 is connected with waste heat boiler 8;
余热锅炉8通过管ivG-4与二级除尘器10相连接；The waste heat boiler 8 is connected with the secondary dust collector 10 through the pipe ivG-4;
二级除尘器10为袋式除尘器，其底部为出料口，出料口通过输送设备ii11-2与渣粉库7相连接；二级除尘器10通过管vG-5与负压风机F-2相连接；The secondary dust collector 10 is a bag filter, the bottom of which is the discharge port, and the discharge port is connected to the slag powder warehouse 7 through the conveying equipment ii11-2; the secondary dust collector 10 is connected to the negative pressure fan F through the pipe vG-5 -2 connected;
负压风机F-2通过管viG-6与外部大气相连接。The negative pressure fan F-2 is connected with the external atmosphere through the pipe viG-6.
密封设备3内部底板设计成均匀的循环流化床形式的通风底板，通风底板表面敷设一定厚度的干燥的鹅卵石，鹅卵石按粒径不同分为若干层，增加均化效果。The internal bottom plate of the sealing device 3 is designed as a uniform circulating fluidized bed ventilated bottom plate, and a certain thickness of dry pebbles are laid on the surface of the ventilated bottom plate, and the pebbles are divided into several layers according to different particle sizes to increase the homogenization effect.
具体实施方式4Specific implementation mode 4
本发明的具体实施例如附图5所示，AOD不锈钢渣干式处理设备包括：密封设备3、密封盖4、一级除尘器6、渣粉库7、余热锅炉8、二级除尘器10、输送装置及连接管路；The specific embodiment of the present invention is shown in Figure 5, AOD stainless steel slag dry processing equipment includes: sealing equipment 3, sealing cover 4, primary dust collector 6, slag powder storage 7, waste heat boiler 8, secondary dust collector 10, Conveying device and connecting pipeline;
密封设备3为地上式，设置在房间内；顶部装有密封盖4，密封设备3与密封盖4之间设有迷宫水封，密封设备3的挡墙上端成凹陷形，密封盖4的下端呈凸起形，扣合时凹凸配合，凹槽中间施以液态水形成水封，强化密封效果。The sealing device 3 is an above-ground type and is installed in the room; a sealing cover 4 is installed on the top, and a labyrinth water seal is arranged between the sealing device 3 and the sealing cover 4. It is in a convex shape, and the concave-convex fits when buckled, and liquid water is applied in the middle of the groove to form a water seal, which strengthens the sealing effect.
密封设备3上设置有多个冷却风喷口2，冷却风喷口2直接与外部大气相通；The sealing device 3 is provided with a plurality of cooling air nozzles 2, and the cooling air nozzles 2 are directly communicated with the external atmosphere;
密封设备3壁上设置有吸尘喇叭口5，吸尘喇叭口5通过管iiG-2与一级除尘器6侧壁上部相连通；The wall of the sealing device 3 is provided with a vacuum bell mouth 5, and the vacuum bell mouth 5 communicates with the upper part of the side wall of the primary dust collector 6 through the pipe iiG-2;
一级除尘器6为旋风式除尘器，其底部设置有出料口，出料口通过输送设备i11-1与渣粉库7相连接；一级除尘器6顶部设置有出风口，出风口通过管iiiG-3与余热锅炉8相连接；The first-stage dust collector 6 is a cyclone dust collector, and its bottom is provided with a discharge port, which is connected to the slag powder warehouse 7 through the conveying equipment i11-1; the top of the first-stage dust collector 6 is provided with an air outlet, and the air outlet passes through Tube iiiG-3 is connected with waste heat boiler 8;
余热锅炉8通过管ivG-4与二级除尘器10相连接；The waste heat boiler 8 is connected with the secondary dust collector 10 through the pipe ivG-4;
二级除尘器10为袋式除尘器，其底部为出料口，出料口通过输送设备ii11-2与渣粉库7相连接；二级除尘器10通过管vG-5与负压风机F-2相连接；The secondary dust collector 10 is a bag filter, the bottom of which is the discharge port, and the discharge port is connected to the slag powder warehouse 7 through the conveying equipment ii11-2; the secondary dust collector 10 is connected to the negative pressure fan F through the pipe vG-5 -2 connected;
负压风机F-2通过管viG-6与外部大气相连接。The negative pressure fan F-2 is connected with the external atmosphere through the pipe viG-6.
密封设备3内部底板设计成均匀的循环流化床形式的通风底板，通风底板表面敷设一定厚度的干燥的鹅卵石，鹅卵石按粒径不同分为若干层，增加均化效果。The internal bottom plate of the sealing device 3 is designed as a uniform circulating fluidized bed ventilated bottom plate, and a certain thickness of dry pebbles are laid on the surface of the ventilated bottom plate, and the pebbles are divided into several layers according to different particle sizes to increase the homogenization effect.
以上所述，仅为本发明的较佳的具体实施方式，但本发明的保护范围并不局限于此，所有熟悉本技术领域的技术人员在本发明公开的技术范围内，根据本发明的技术方案及其本发明的构思加以等同替换或改变均应涵盖在本发明的保护范围之内。The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, all those skilled in the art are within the technical scope disclosed in the present invention, according to the technology of the present invention Any equivalent replacement or change of the scheme and the concept of the present invention shall fall within the protection scope of the present invention.
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| CN113684328A (en) * | 2021-08-17 | 2021-11-23 | 刘春茗 | Dry type treatment equipment for foam slag and working mode thereof |
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