WO2021068312A1 - 一种套筒窑的导流帽防结瘤结构 - Google Patents

一种套筒窑的导流帽防结瘤结构 Download PDF

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WO2021068312A1
WO2021068312A1 PCT/CN2019/115228 CN2019115228W WO2021068312A1 WO 2021068312 A1 WO2021068312 A1 WO 2021068312A1 CN 2019115228 W CN2019115228 W CN 2019115228W WO 2021068312 A1 WO2021068312 A1 WO 2021068312A1
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cap
flow guide
purge
air
flow
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PCT/CN2019/115228
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English (en)
French (fr)
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庞焕军
张林进
虞帮俊
沈浩
唐丹
赵波
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江苏中圣园科技股份有限公司
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Publication of WO2021068312A1 publication Critical patent/WO2021068312A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • B08B17/02—Preventing deposition of fouling or of dust
    • 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
    • C04B2/00—Lime, magnesia or dolomite
    • C04B2/10—Preheating, burning calcining or cooling
    • C04B2/12—Preheating, burning calcining or cooling in shaft or vertical furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B13/00—Furnaces with both stationary charge and progression of heating, e.g. of ring type, of type in which segmental kiln moves over stationary charge
    • F27B13/06—Details, accessories, or equipment peculiar to furnaces of this type

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  • the present invention relates to the technical field of sleeve kilns, and in particular to a nodulation prevention structure for a deflector cap of a sleeve kiln.
  • the amount of exhaust gas entering the heat exchanger through the upper flow cap only accounts for about 1/3, the low volatile alkalis (K 2 O, Na 2 O) in the exhaust gas are all concentrated in this 1/3 of the exhaust gas.
  • the exhaust gas enters the upper inner sleeve due to the expansion of the flow area, the flow rate decreases, and the dust carried by the part settles and falls on the deflector cap. Under high temperature conditions, it melts and accumulates, which will cause the upper deflector cap to be prone to formation. Tumor phenomenon. When the deflector cap begins to be clogged, the working conditions will be further deteriorated.
  • the amount of exhaust gas entering the upper inner sleeve is reduced, and the flow rate is reduced, and low-volatile alkalis (K 2 O, Na 2 O) cannot be removed from the kiln.
  • the top preheating section is discharged and cyclically enriched in the upper inner sleeve, which further increases the dust concentration of the exhaust gas entering the upper inner sleeve, resulting in a vicious circle.
  • the flow rate of the dust-laden airflow decreases after entering the upper inner sleeve, which causes the dust separation and sedimentation to aggravate nodules.
  • the nodulation will not only affect the quality of the product, but also cause fatal effects on the production process, kiln refractory materials and other equipment in severe cases.
  • the present invention provides an anti-nodulation structure for the diversion cap of the sleeve kiln, which can effectively slow down or prevent the diversion cap nodulation.
  • a flow guide cap anti-tumor structure of a sleeve kiln includes a lower inner sleeve and a flow cap.
  • the flow cap is installed on the top of the lower inner sleeve.
  • the outer side of the flow cap is provided with a refractory layer.
  • the lower inner sleeve has a cooling interlayer, the top of the flow cap is provided with a purge assembly, the purge assembly is embedded in the refractory layer and communicates with the inner cavity of the flow cap, the lower inner sleeve
  • An air guide assembly is arranged between the air guide cap and the air inlet of the air guide assembly communicates with the cooling interlayer, and the air outlet of the air guide assembly is located in the inner cavity of the air guide cap.
  • the lower end of the cooling interlayer of the lower inner sleeve is communicated with the cooling air source.
  • a small part of the cooling air in the cooling interlayer is introduced into the inner cavity of the flow guide cap through the air guide assembly, and then this part of the cooling air is purged from the purge assembly on the top of the flow guide cap Blowing out, to achieve continuous blowing of dust or dust attached to the position of the deflector cap, thereby effectively slowing down or preventing the position of the deflector cap from forming nodules; in addition, the purge component is wrapped in a refractory layer, which can effectively improve the purge component Life.
  • the purge assembly includes a plurality of purge tube layers arranged in parallel up and down.
  • the beneficial effect of adopting this step is that a plurality of purge pipe layers distributed in parallel up and down can cover the area above the position where dust accumulation occurs at the position of the deflector cap to the greatest extent, ensure that the purge area is large enough, and further ensure that it is slowed or prevented. Nodules occur in the flow cap; in addition, a plurality of purge tube layers arranged in parallel up and down are adopted, which has a simple structure and low manufacturing cost.
  • the distance between each purge tube layer is 60-100 mm.
  • the beneficial effect of adopting this step is to ensure the effective slowing down or prevention of dust accumulation.
  • the number of purge tube layers is 6 layers.
  • the beneficial effect of adopting this step is to ensure the effective slowing down or prevention of dust accumulation.
  • each of the purge tube layers includes a plurality of purge tubes uniformly arranged along the circumference of the flow guide cap.
  • the beneficial effect of adopting this step is to ensure the effective slowing down or prevention of dust accumulation.
  • the air induction assembly includes a plurality of air induction pipes evenly distributed along the circumferential direction of the lower inner sleeve.
  • the beneficial effect of this step is that the air duct is used to introduce the cooling air in the cooling interlayer into the inner cavity of the flow guide cap, and the air duct has a simple structure and low manufacturing cost.
  • the number of the draft tube is seven.
  • the beneficial effect of adopting this step is to ensure the amount of cooling air entering the diversion cap through the air duct, ensure that dust is not easy to accumulate, and thereby ensure that the diversion cap is effectively slowed down or prevented from forming.
  • an anti-nodulation structure for the flow guiding cap of the sleeve kiln can effectively slow down or prevent the caking phenomenon of the flow guiding cap.
  • multiple purge pipe layers are distributed up and down on the top of the diversion cap to maximize the coverage of the upper area where dust accumulation may occur, thereby ensuring that the diversion cap is effectively slowed down or prevented; there are multiple ducts connected to the cooling interlayer.
  • the uniform arrangement along the circumference of the flow guide cap can ensure the amount of cooling air introduced into the inner cavity of the flow guide cap, and further ensure that the flow guide cap is effectively slowed down or prevented from forming nodules.
  • Figure 1 is a schematic structural diagram of an embodiment of the present invention
  • Figure 2 is a schematic diagram of the distribution of multiple purge pipes in an embodiment of the present invention.
  • Figure 3 is a cross-sectional view of A-A in Figure 1;
  • 1-lower inner sleeve 2-diversion cap; 3-cooling interlayer; 4-purge assembly; 5-induced draft assembly; 6-cooling air flat tube;
  • 201-Refractory layer 401-Purge pipe; 501-Induced air pipe.
  • the terms “installed”, “connected”, “connected”, “fixed” and other terms should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components.
  • installed can be a fixed connection or a detachable connection , Or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components.
  • the present invention provides an anti-nodulation structure for the diversion cap of a sleeve kiln, which can effectively slow down or prevent the diversion cap nodulation.
  • an anti-tumor structure for the flow cap of a sleeve kiln includes a lower inner sleeve 1 and a flow cap 2, wherein the flow cap 2 is fixedly installed on the top of the lower inner sleeve 1.
  • the lower inner sleeve 1 of the kiln has a cooling interlayer 3.
  • the deflector cap 2 of the sleeve kiln is usually a steel structure cavity, and the outside of the cavity is poured with indeterminate refractory material, that is, the outside of the deflector cap 2 is provided with a refractory layer 201.
  • the top of the deflector cap 2 is provided with a purge assembly 4, the purge assembly 4 is buried in the refractory layer 201, the refractory layer 201 increases the service life of the purge assembly 4, and the purge assembly 4 does not Connected with the inner cavity of the flow guide cap 2; an air guide assembly 5 is provided between the lower inner sleeve 1 and the flow guide cap 2. The air inlet of the air guide assembly 5 is connected to the cooling interlayer 3, and the air outlet of the air guide assembly 5 is located at In the inner cavity of the deflector cap 2.
  • the lower end of the cooling jacket 3 of the lower inner sleeve 1 of the sleeve kiln is connected with a cooling air source, and the air induction assembly 5 cools a small part of the cooling air in the lower inner sleeve 1 to cool the jacket 3 ( ⁇ 200°C) Introduced into the inner cavity of the deflector cap 2, and then this part of the cooling air is blown out at a certain speed from the purge assembly 4 communicating with the inner cavity of the deflector cap 2, so as to achieve uninterrupted dust or dust at the position of the deflector cap Purge to prevent dust accumulation, to a certain extent alleviate or prevent the formation of nodules at the position of the deflector cap 2.
  • the cooling air blown out by the purge assembly 4 is mixed with 30% of the combustion flue gas and enters the upper inner sleeve of the sleeve kiln, while the remaining cooling air in the cooling jacket 2 of the lower inner sleeve 1 still follows the original process path:
  • the cooling air ring pipe of the sleeve kiln is introduced into the sleeve kiln through the cooling air flat pipe 6 as the burner combustion gas, and the excess cooling air is released.
  • the purge assembly 4 includes a plurality of purge tube layers, and each purge tube layer is distributed up and down in parallel.
  • the distance between each purge tube layer is 60-100 mm.
  • the number of purge tube layers is 6 layers.
  • each purge tube layer further includes a plurality of purge tubes 401 evenly arranged along the circumference of the flow deflector cap.
  • the purge pipe 401 is usually made of stainless steel pipes or other pipe materials suitable for sleeve kilns.
  • One end of the purge pipe 401 is an inlet for cooling air, and the other end is an outlet for cooling air.
  • the purge pipe 401 is installed in the deflector cap. 2
  • the top part is buried in the refractory layer 201.
  • the refractory layer 201 can protect the purge pipe 401 and prolong the service life of the purge pipe 401.
  • the inlet of the purge tube 401 communicates with the inner cavity of the flow guide cap 2, the outlet of the purge tube 401 is flush with the outside of the refractory layer, and the outlet of the purge tube 401 is located above the nodulation area at the position of the flow guide cap 2.
  • a small part of the cooling air introduced into the deflector cap 2 is introduced from the inlet of the purge pipe 401 to the outlet of the purge pipe 401 and blown out, and then blows the area above the dust accumulation at the position of the deflector cap 2 in real time Scan, effectively slow down or prevent the formation of nodules at the 2 position of the deflector cap.
  • the purge tubes 401 are arranged in multiple layers on the top of the flow guide cap 2, and each layer is distributed in parallel up and down; each layer includes a plurality of purge tubes 401 and is evenly distributed along the circumference of the flow guide cap 2. This distribution form can cover the position above the nodulation-prone area of the deflector cap 2 to the greatest extent, thereby effectively slowing down or preventing the occurrence of nodules.
  • the air induction assembly 5 includes a plurality of air induction pipes 501 evenly distributed along the circumferential direction of the lower inner sleeve 1.
  • the number of the air duct 501 is seven.
  • the draft tube 501 is made of stainless steel tube or other pipe materials, the outlet end of the draft tube 501 is located in the inner cavity of the flow guide cap 2, and the inlet end of the draft tube 501 is in communication with the cooling interlayer 3.
  • the distance between each layer, the number and the pipe diameter; the number and pipe diameter of the draft pipe 501 are adjusted according to the actual situation of the sleeve kiln to ensure the amount of cooling air entering the deflector cap And the flow rate ensures that the dust can be effectively purged, and effectively slows down or prevents the formation of nodules at the position of the deflector cap.
  • a flange blind plate is installed at the outlet end of the induced air pipe 501 when it is installed. After the air tightness test of the inner sleeve of the sleeve kiln is completed, the blind plate is removed.
  • a construction manhole is provided on the side wall of the diversion cap 2 in the form of a flange + a cover plate, and the construction manhole is closed after the refractory construction on the top of the upper section of the lower inner sleeve is completed.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
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  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
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Abstract

公开一种套筒窑的导流帽防结瘤结构，包括下内套筒（1）和导流帽（2），导流帽（2）安装在下内套筒（1）的顶部，导流帽（2）的外侧设有耐火层，下内套筒（1）具有冷却夹层（3），导流帽顶部设有扫吹组件（4），扫吹组件（4）埋设在耐火层中并与导流帽（2）内腔连通，下内套筒（1）与导流帽（2）之间设有引风组件（5），引风组件（5）的进风口与冷却夹层（3）连通，引风组件（5）的出风口位于导流帽（2）的内腔中，将下内套筒（1）的小部分冷却空气通过引风组件（5）引入导流帽（2）内腔中，冷却空气以一定速度从导流帽（2）上部的吹扫组件吹出，对附着在导流帽（2）位置的粉尘积灰进行实时吹扫，能够有效缓解或防止导流帽位置发生结瘤。

Description

一种套筒窑的导流帽防结瘤结构 技术领域
本发明涉及套筒窑技术领域，尤其涉及一种套筒窑的导流帽防结瘤结构。
背景技术
环形套筒窑石灰石的煅烧，废气中存在一定量挥发性有害成分(K 2O、Na 2O、SO 3等)，SO 3与金属氧化物反应形成固态硫酸盐，而挥发性碱(K 2O、Na 2O)在较低温度(700℃左右)时会凝结。环形套筒窑中约2/3的废气用于预热新加入的冷石灰石，约1/3废气通过上内套筒内部空间进入换热器。
虽然通过上导流帽进入换热器的废气量仅占1/3左右，但废气中低挥发性碱(K 2O、Na 2O)均富集在此1/3左右的废气中。当废气进入上内套筒后，由于流通面积的扩大，流速降低，携带的粉尘部分发生沉降，落至导流帽上，在高温条件下，发生熔融聚集，进而导致上导流帽易发生结瘤现象。当导流帽开始出现堵塞后，工况将会进一步恶化，由于堵塞导致进入上内套筒的废气量减少，流速降低，而低挥发性碱(K 2O、Na 2O)始终无法从窑顶预热段排出，循环富集至上内套筒内，进一步提高进入上内套筒废气的含尘浓度，出现恶性循环。特别是当原料粉料含量较大时，含尘气流进入上内套筒后流速降低导致粉尘分离沉降加剧结瘤。而结瘤将不仅影响产品质量，严重时会对生产工艺以及窑体耐材和其他设备造成致命的影响。
发明内容
为解决上述问题，本发明提供了一种套筒窑的导流帽防结瘤结构，能够有效减缓或防止导流帽发生结瘤现象。
本发明解决的技术问题所采用的方案是：
一种套筒窑的导流帽防结瘤结构，包括下内套筒和导流帽，所述导流帽安装在下内套筒的顶部，所述导流帽的外侧设有耐火层，所述下内套筒具有冷却夹层，所述导流帽顶部设有吹扫组件，所述吹扫组件埋设在所述耐火层中并与所述导流帽内腔连通，所述下内套筒与所述导流帽之间设有引风组件，所述引风组件的进风口与冷却夹层连通，所述引风组件的出风口位于所述导流帽的内腔中。
下内套筒的冷却夹层下端与冷却空气源连通，通过引风组件将冷却夹层中一小部分冷却空气引入导流帽的内腔中，然后这一部分冷却空气从导流帽顶部的吹扫组件吹出，实现不间断地吹扫附着在导流帽位置的粉尘或灰尘，进而有效减缓或防止导流帽位置发生结瘤； 此外，吹扫组件包裹在耐火层中，能够有效的提高吹扫组件的使用寿命。
优选地，所述吹扫组件包括多个上下平行分布的吹扫管层。采用本步骤的有益效果是：多个上下平行分布的吹扫管层，能够最大限度的覆盖导流帽位置发生粉尘堆积位置的上方区域，确保吹扫区域足够大，进一步保证减缓或防止发生导流帽发生结瘤；此外，采用多个上下平行分布的吹扫管层，其结构简单，制造成本低。
优选地，每层吹扫管层之间的距离为60～100mm。采用本步骤的有益效果：保证有效的减缓或防止粉尘堆积。
优选地，所述吹扫管层的数量为6层。采用本步骤的有益效果：保证有效的减缓或防止粉尘堆积。
优选地，每一所述吹扫管层包括多个沿所述导流帽周向均匀布置的吹扫管。采用本步骤的有益效果：保证有效的减缓或防止粉尘堆积。
优选地，所述引风组件包括多个沿所述下内套筒周向均匀分布的引风管。本步骤的有益效果是：采用引风管将冷却夹层中的冷却空气引入导流帽内腔中，引风管的结构简单，制造成本低。
优选地，所述引风管的数量为7个。采用本步骤的有益效果是，保证通过引风管进入导流帽内的冷却空气量，确保粉尘不易发生堆积，进而保证有效减缓或防止导流帽结瘤。
本发明的有益效果：一种套筒窑的导流帽防结瘤结构，能够有效减缓或防止导流帽发生结瘤现象。其中，导流帽顶部上下分布多个吹扫管层，最大限度的覆盖可能发生粉尘堆积的上方区域，进而保证有效减缓或防止导流帽结瘤；与冷却夹层连通的引风管为多个，沿导流帽周向均匀布置，能够保证引入导流帽内腔中的冷却空气量，也进一步保证有效减缓或防止发生导流帽发生结瘤。
附图说明
图1是本发明某一实施例的结构示意图；
图2是本发明某一实施例中多个吹扫管分布示意图；
图3是图1中A-A剖视图；
其中：1-下内套筒；2-导流帽；3-冷却夹层；4-吹扫组件；5-引风组件；6-冷却空气扁平管；
201-耐火层；401-吹扫管；501-引风管。
具体实施方式
下面将结合附图对本发明技术方案的实施例进行详细的描述。以下实施例仅用于更加 清楚地说明本发明的技术方案，因此只作为示例，而不能以此来限制本发明的保护范围。
需要注意的是，除非另有说明，本申请使用的技术术语或者科学术语应当为本发明所属领域技术人员所理解的通常意义。
在本申请的描述中，需要理解的是，术语“上”、“下””、“内”、“外”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
此外，在本发明的描述中，“多个”的含义是两个以上，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
本发明提供了一种套筒窑的导流帽防结瘤结构，能够有效减缓或防止导流帽发生结瘤现象。
如图1所示，一种套筒窑的导流帽防结瘤结构，包括下内套筒1和导流帽2，其中导流帽2固定安装在下内套筒1的顶部，该套筒窑的下内套筒1具有冷却夹层3。套筒窑的导流帽2通常为一个钢结构腔体，腔体的外侧浇筑有不定性耐火材料，即导流帽2的外侧设有耐火层201。
本发明与现有技术不同处：导流帽2的顶部设置吹扫组件4，吹扫组件4埋设在耐火层201中，耐火层201提高了吹扫组件4的使用寿命，吹扫组件4并与导流帽2的内腔连通；下内套筒1与导流帽2之间设有引风组件5，引风组件5的进风口与冷却夹层3连通，引风组件5的出风口位于导流帽2的内腔中。
具体的工作原理：套筒窑的下内套筒1的冷却夹层3的下端与冷却空气源连通，引风组件5将下内套筒1冷却夹层3中一小部分冷却空气(～200℃)引入导流帽2的内腔中，然后这部分冷却空气以一定速度从与导流帽2的内腔连通的吹扫组件4吹出，从而实现对导流帽位置的粉尘或灰尘等进行不间断吹扫，从而防止粉尘堆积，在一定程度上缓解或防止导流帽2位置发生结瘤。由吹扫组件4吹出的冷却空气与30％的燃烧烟气混合，进入套筒窑的上内套筒内，而下内套筒1的冷却夹层2中的剩余冷却空气仍按原工艺路径：通过冷却空气扁平管6引入套筒窑冷却空气环管作为烧嘴助燃气，多余的冷却空气则放散。
某一较佳实施例中，如图1所示，吹扫组件4包括多个吹扫管层，每个吹扫管层呈上下平行分布。
某一较佳实施例中，如图1所示，每层吹扫管层之间的距离为60～100mm。
某一较佳实施例中，如图2所示，吹扫管层的数量为6层。
某一较佳实施例中，如图1和图2，每一吹扫管层又包括多个沿导流帽周向均匀布置的吹扫管401。
其中，吹扫管401通常采用用不锈钢管或其他适用于套筒窑的管材，吹扫管401的一端为冷却空气的进口，另一端为冷却空气的出口，吹扫管401安装在导流帽2顶部，并埋设在耐火层201中，耐火层201中能够保护吹扫管401，延长吹扫管401的使用寿命。吹扫管401的进口与导流帽2的内腔连通，吹扫管401的出口与耐火层的外侧平齐，且吹扫管401的出口均位于导流帽2位置发生结瘤区域的上方，被引入至导流帽2中的一小部分冷却空气从吹扫管401的进口引至吹扫管401的出口并被吹出，进而对导流帽2位置发生粉尘堆积的上方区域进行实时吹扫，有效减缓或防止导流帽2位置发生结瘤。
吹扫管401在导流帽2的顶部设置为多层，每层上下依次平行分布；每层包括多个吹扫管401且沿着导流帽2的周向均匀分布。该分布形式能够最大限度的覆盖导流帽2易发生结瘤区域上方的位置，从而有效的减缓或防止结瘤的发生。
某一较佳实施例中，如图1所示，引风组件5包括多个沿下内套筒1周向均匀分布的引风管501。
某一较佳实施例中，所述引风管501的数量为7个。
引风管501采用不锈钢管或其他管材，引风管501的出口端位于导流帽2的内腔中，引风管501的进口端与冷却夹层3连通。
此外，经验证即使在燃烧空气最大需求量条件下，引流一部分冷却空气至上导流帽，其助燃空气供应量仍远远大于需求量；若进入上内套筒(最终进入换热器)的烟气温度下降了，可以通过适当加大换热器后的烟气调节阀开度，仍可保证换热器的换热效率以及驱动空气温度，因此对原来整体生产工艺基本无影响。
关于吹扫管401的层数、每层之间的距离、数量和管径；引风管501的数量和管径，均根据套筒窑实际情况进行调整，确保进入导流帽的冷却空气量以及流速，保证能够有效吹扫粉尘，有效减缓或防止导流帽位置发生结瘤现象。
下内套筒1、导流帽2、冷却夹层3、吹扫组件4和引风组件5的安装以及耐火材料的浇筑等均为本技术领域内常用手段。其中，引风管501安装时其出口端安装有法兰盲板， 待套筒窑的内套筒气密性试验完成后，拆除盲板。导流帽2的侧壁设置有一个施工人孔，由法兰+盖板形式，在下内套筒上段的顶部耐火材料施工完成后封闭该施工人孔。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (7)

  1. 一种套筒窑的导流帽防结瘤结构，包括下内套筒和导流帽，所述导流帽安装在下内套筒的顶部，所述导流帽的外侧设有耐火层，所述下内套筒具有冷却夹层，其特征在于，所述导流帽顶部设有吹扫组件，所述吹扫组件埋设在所述耐火层中并与所述导流帽内腔连通，所述下内套筒与所述导流帽之间设有引风组件，所述引风组件的进风口与冷却夹层连通，所述引风组件的出风口位于所述导流帽的内腔中。
  2. 根据权利要求1所述的套筒窑的导流帽防结瘤结构，其特征在于，所述吹扫组件包括多个上下平行分布的吹扫管层。
  3. 根据权利要求2所述的套筒窑的导流帽防结瘤结构，其特征在于，每层吹扫管层之间的距离为60～100mm。
  4. 根据权利要求2或3所述的套筒窑的导流帽防结瘤结构，其特征在于，所述吹扫管层的数量为6层。
  5. 根据权利要求2或3所述的套筒窑的导流帽防结瘤结构，其特征在于，每一所述吹扫管层包括多个沿所述导流帽周向均匀布置的吹扫管。
  6. 根据权利要求1所述的套筒窑的导流帽防结瘤结构，其特征在于，所述引风组件包括多个沿所述下内套筒周向均匀分布的引风管。
  7. 根据权利要求1所述的套筒窑的导流帽防结瘤结构，其特征在于，所述引风管的数量为7个。
PCT/CN2019/115228 2019-10-11 2019-11-04 一种套筒窑的导流帽防结瘤结构 WO2021068312A1 (zh)

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