CN2626585Y - Glass fiber bag-type dust collector - Google Patents

Glass fiber bag-type dust collector Download PDF

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CN2626585Y
CN2626585Y CN03259335.XU CN03259335U CN2626585Y CN 2626585 Y CN2626585 Y CN 2626585Y CN 03259335 U CN03259335 U CN 03259335U CN 2626585 Y CN2626585 Y CN 2626585Y
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pipe
flower plate
shell
ash hopper
reverse
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陈茂荣
朱健
马从生
陈永仕
冯勇
朱勇
胡秀彬
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陈茂荣
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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Abstract

本实用新型公开了一种玻纤袋式除尘器,含有壳体、滤袋、上花板、下花板、三通切换阀、排风管、反吹风管、灰斗、联通管、排灰阀,上花板和下花板分别设置在壳体内上部和下部,上花板和下花板之间设有滤袋,壳体下部设有灰斗,壳体顶部安装有排风管、反吹风管、联通管及三通切换阀,反吹风管与反吹风机出口相联,还含有导流锥、中心进风管,壳体为圆筒形结构,中心进风管设置在壳体的顶部中央并穿过壳体内部的上花板和下花板进入灰斗内,中心进风管的下方设置导流锥且在灰斗的中心上方,反吹风机进口与排风管的支管相联。该除尘器不仅在清灰时不会引起结露,而且烟气均匀进入各滤袋消除部分滤袋因局部气流速度高而发生的磨穿。

Figure 03259335

The utility model discloses a glass fiber bag-type dust collector, which comprises a shell, a filter bag, an upper flower plate, a lower flower plate, a three-way switching valve, an exhaust pipe, an anti-blowing pipe, an ash hopper, a communication pipe, and an ash discharge pipe. The valve, the upper flower plate and the lower flower plate are respectively arranged on the upper and lower parts of the shell, a filter bag is arranged between the upper flower plate and the lower flower plate, an ash hopper is arranged on the lower part of the shell, and an exhaust pipe and a reverse air duct are installed on the top of the shell The blowing pipe, the connecting pipe and the three-way switch valve, the reverse blowing pipe is connected with the outlet of the reverse blowing machine, and also includes a diversion cone and a central air inlet pipe. The shell is a cylindrical structure, and the central air intake pipe is set on the top of the shell The center passes through the upper flower plate and the lower flower plate inside the shell and enters the ash hopper. A diversion cone is arranged below the central air inlet pipe and above the center of the ash hopper. The inlet of the reverse blower is connected with the branch pipe of the exhaust pipe. This dust collector not only does not cause dew condensation when cleaning dust, but also the flue gas enters each filter bag evenly to eliminate the wear-through of some filter bags due to high local air velocity.

Figure 03259335

Description

玻纤袋式除尘器Fiberglass bag filter

技术领域technical field

本实用新型涉及一种烟气除尘设备,尤其是一种玻纤袋式除尘器。The utility model relates to a flue gas dedusting device, in particular to a glass fiber bag type deduster.

背景技术Background technique

目前,水泥厂的水泥立窑、烘干机等高温高湿场合的烟气治理难度很大。适合我国这类工矿企业的高效除尘器,玻纤袋式除尘器使用的效果比较好。这类除尘器大致分为两种:一种是采用上部进风、下出风方式,上花板积灰严重,整体结构复杂。当外界温度较低时,反吹清灰吸入的冷空气与尘气室内的热烟气相接触,极易在除尘器、滤袋表面引起结露,导致滤袋糊袋,影响除尘器的正常工作,缩短滤袋的使用寿命。同时,冷热气体相接触时,也会造成壳体板结露,导致壳体腐蚀,降低设备的使用寿命。另一种是采用下部进风方式,该设备进风管位于壳体内部,导致检修难度加大,设备占用空间也增大。该设备仍采用大气反吹清灰,清灰引起的结露也未能解决,该设备的清灰控制采用提升切换阀,阀板动作过程中,反吹气流与排出气流有较长的同时开启时间,影响了清灰效果。这两种除尘器在烟气到达除尘器内部不能将烟气均匀进入各滤袋,导致部分滤袋因局部气流速度高而发生磨穿。这两种除尘器都采用箱体框架式,其结构复杂、占地面积大,钢耗高。At present, it is very difficult to control the flue gas in high-temperature and high-humidity places such as cement shaft kilns and dryers in cement plants. For high-efficiency dust collectors suitable for such industrial and mining enterprises in my country, the effect of using glass fiber bag dust collectors is better. This type of dust collector is roughly divided into two types: one is the upper air inlet and lower air outlet method, the dust accumulation on the upper flower plate is serious, and the overall structure is complicated. When the outside temperature is low, the cold air inhaled by back blowing and dust removal contacts the hot flue gas in the dust chamber, which will easily cause condensation on the surface of the dust collector and filter bag, resulting in the filter bag sticking and affecting the normal operation of the dust collector. Work, shorten the service life of the filter bag. At the same time, when hot and cold gases are in contact, condensation will also be caused on the shell plate, resulting in corrosion of the shell and reducing the service life of the equipment. The other is to adopt the lower air intake method. The air intake pipe of the equipment is located inside the casing, which increases the difficulty of maintenance and increases the space occupied by the equipment. The equipment still uses atmospheric back-blowing to clean dust, and the condensation caused by dust cleaning has not been solved. The dust-cleaning control of this equipment adopts a lifting switching valve. Time affects the cleaning effect. When the flue gas reaches the inside of the dust collector, these two kinds of dust collectors cannot evenly enter the flue gas into each filter bag, resulting in the wear-through of some filter bags due to the high local air velocity. Both of these dust collectors adopt box frame type, which has complex structure, large floor area and high steel consumption.

实用新型内容Utility model content

为了克服现有的玻纤袋式除尘器在清灰引起的结露、烟气不能均匀进入各滤袋导致部分滤袋因局部气流速度高而发生的磨穿、结构复杂、钢耗高的不足。本实用新型提供一种玻纤袋式除尘器,该除尘器不仅在清灰时不引起结露,而且烟气均匀进入各滤袋消除部分滤袋因局部气流速度高而发生的磨穿。同时,该除尘器结构简单紧凑,占地面积小,钢耗低。In order to overcome the deficiencies of the existing glass fiber bag-type dust collectors, such as dew condensation caused by dust cleaning, flue gas cannot evenly enter each filter bag, resulting in wear-through of some filter bags due to high local air velocity, complex structure, and high steel consumption. . The utility model provides a glass fiber bag-type dust collector, which not only does not cause dew condensation when cleaning dust, but also smokes evenly enters each filter bag to eliminate wear-through of some filter bags due to high local air velocity. At the same time, the dust collector has a simple and compact structure, a small footprint and low steel consumption.

本实用新型解决其技术问题所采用的技术方案是:含有壳体、滤袋、上花板、下花板、三通切换阀、排风管、反吹风管、灰斗、联通管、排灰阀,上花板和下花板分别设置在壳体内上部和下部,上花板和下花板之间设有滤袋,壳体下部设有灰斗,壳体顶部安装有排风管、反吹风管、联通管及三通切换阀,反吹风管与反吹风机出口相联,还含有导流锥、中心进风管,壳体为圆筒形结构,中心进风管设置在壳体的顶部中央并穿过壳体内部的上花板和下花板进入灰斗内,中心进风管的下方设置导流锥且在灰斗的中心上方,反吹风机进口与排风管的支管相联通。The technical solution adopted by the utility model to solve the technical problems is: it contains the shell, the filter bag, the upper flower plate, the lower flower plate, the three-way switch valve, the exhaust pipe, the reverse blow pipe, the ash hopper, the Unicom pipe, the ash discharge The valve, the upper flower plate and the lower flower plate are respectively arranged on the upper and lower parts of the shell, a filter bag is arranged between the upper flower plate and the lower flower plate, an ash hopper is arranged on the lower part of the shell, and an exhaust pipe and a reverse air duct are installed on the top of the shell The blowing pipe, the connecting pipe and the three-way switch valve, the reverse blowing pipe is connected with the outlet of the reverse blowing machine, and also includes a diversion cone and a central air inlet pipe. The shell is a cylindrical structure, and the central air intake pipe is set on the top of the shell The center passes through the upper flower plate and the lower flower plate inside the shell and enters the ash hopper. A diversion cone is arranged below the central air inlet pipe and above the center of the ash hopper. The inlet of the reverse blower is connected with the branch pipe of the exhaust pipe.

壳体内至少分为四个分室。The housing is divided into at least four compartments.

灰斗为圆锥形结构。The ash hopper is a conical structure.

本实用新型的有益效果是,壳体采用圆筒形结构,使结构简单紧凑,占用面积小,钢耗低;由于中心进风管设置在圆筒形壳体的顶部中央并穿过壳体内部进入灰斗内且中心进风管的下方设置导流锥,高温烟气由中心进风管进入灰斗时,经导流锥的拦阻而能均匀进入除尘器的各个滤袋,火星大颗粒等由于惯性作用直接落入灰斗,避免了火星大颗粒直接与滤料接触,导致滤袋烧坏。同时由于高温烟气经导流锥的拦阻,风速较慢,也避免了滤袋因局部气流速度高发生的磨穿。由于排风管排出的二次洁净热气由其支管通过反吹风机和反吹风管进行反吹清灰,有效防止了除尘器内的结露。由于含尘气体由下而上经过下花板和滤袋再通过上花板进入排风管,在清灰的过程中二次洁净热气由反吹风管经上花板进入分室进行清灰。因而上花板上无积灰,既便于维护,又减少了除尘器荷载。The beneficial effect of the utility model is that the shell adopts a cylindrical structure, which makes the structure simple and compact, occupies a small area, and reduces steel consumption; since the central air inlet pipe is arranged at the top center of the cylindrical shell and passes through the inside of the shell When the high-temperature flue gas enters the ash hopper from the central air inlet pipe, it can evenly enter each filter bag of the dust collector through the obstruction of the diversion cone, and the large particles of sparks, etc. Due to the inertia effect, it falls directly into the ash hopper, avoiding the direct contact of the large spark particles with the filter material, which will cause the filter bag to burn out. At the same time, because the high-temperature flue gas is blocked by the diversion cone, the wind speed is relatively slow, which also avoids the wear-through of the filter bag due to the high local air speed. Since the secondary clean hot air discharged from the exhaust pipe is blown back and cleaned by its branch pipe through the reverse blower and the reverse blow pipe, the condensation in the dust collector is effectively prevented. Since the dusty gas passes through the lower flower plate and filter bag from bottom to top and then enters the exhaust pipe through the upper flower plate, the secondary clean hot air enters the sub-chamber through the upper flower plate through the reverse blowing pipe for dust cleaning during the dust cleaning process. Therefore, there is no dust accumulation on the upper flower plate, which is convenient for maintenance and reduces the load of the dust collector.

附图说明Description of drawings

下面结合附图和实施例对本实用新型作进一步说明。Below in conjunction with accompanying drawing and embodiment the utility model is further described.

图1是本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.

图2是图1的俯视图。FIG. 2 is a top view of FIG. 1 .

图中1.中心进风管,2.三通切换阀,3.排风管,4.反吹风管,5.上花板,6.滤袋,7.壳体,8.下花板,9.灰斗,10.导流锥,11.排灰阀,12.联通管。In the figure 1. Central air inlet pipe, 2. Three-way switching valve, 3. Exhaust pipe, 4. Anti-blow pipe, 5. Upper flower plate, 6. Filter bag, 7. Shell, 8. Lower flower plate, 9. Ash hopper, 10. Diversion cone, 11. Ash discharge valve, 12. Unicom pipe.

具体实施方式Detailed ways

图1中,壳体7为圆筒形壳体,壳体7内部分为4至6室,壳体7的下方设有灰斗9,灰斗9设有排灰阀11,中心进风管1设置在圆筒形壳体7的顶部中央并穿过壳体7内部的上花板5和下花板8进入灰斗9内部,中心进风管1的下方设置导流锥10且在灰斗9的中心上方,上花板5和下花板8之间设有滤袋6,圆筒形壳体7的顶部安装有三通切换阀2且与壳体7内的分室相联通,排风管3与三通切换阀2相联。图示2中,反吹风管4通过联通管12与三通切换阀2相联通。In Fig. 1, the shell 7 is a cylindrical shell, and the inside of the shell 7 is divided into 4 to 6 chambers, and an ash hopper 9 is provided under the shell 7, and the ash hopper 9 is provided with an ash discharge valve 11, and the central air inlet pipe 1. It is set at the top center of the cylindrical shell 7 and passes through the upper flower plate 5 and the lower flower plate 8 inside the shell 7 to enter the inside of the ash hopper 9. A guide cone 10 is set under the central air inlet pipe 1 and placed in the ash hopper. Above the center of the bucket 9, a filter bag 6 is provided between the upper flower plate 5 and the lower flower plate 8, and a three-way switching valve 2 is installed on the top of the cylindrical housing 7 and communicated with the sub-chambers in the housing 7 to exhaust air. The pipe 3 is connected with the three-way switching valve 2 . In figure 2, the blowback pipe 4 communicates with the three-way switching valve 2 through the communication pipe 12 .

反吹风管4与反吹风机出口相联,反吹风机进口与排风管3的支管相联。The reverse blow pipe 4 is connected with the outlet of the reverse blower, and the inlet of the reverse blower is connected with the branch pipe of the exhaust pipe 3 .

工作时,水泥立窑或烘干排放的含尘烟气经中心进风管1进入除尘器壳体7下方灰斗9内部,含尘烟气中的粗颗粒粉尘由于导流锥10的拦阻及自身重力的作用直接落入灰斗9中,粉尘进行预分离。与此同时,在除尘引风机产生的负压作用下,经导流锥10拦阻的烟气均匀通过下花板8进入壳体7各室内的滤袋6,粉尘被滞留在滤袋6内表面,含尘气体则经过滤袋6过滤得到净化,净化的气体通过上花板5、三通切换阀2及排风管3排出。除尘器运行一段时间后,滤袋6内表面捕集的粉尘层增厚,除尘器的运行阻力增加,当增加到一定值后,就需要对某个分室内的滤袋6进行清灰,这时微机指令三通切换阀2使该分室与排风管3的联通中断、同时三通切换阀2使反吹风管4与该分室相联通,其它分室排出的一部分二次洁净热气由排风管3的支管经反吹风机进入反吹风管4,这时由于三通切换阀2已使反吹风管4与该分室相联通,二次洁净热气到达该分室,此时的气流方向与排风时的气流方向相反,二次洁净热气在反吹风机的作用下将原来膨胀的滤袋6压瘪变形,清除掉滤袋6内表面附着的粉尘,清下的粉尘落入灰斗9。清灰完毕后,只需指令三通切换阀2使该分室与排风管3相联通、同时三通切换阀2使反吹风管4与该分室相联通的中断,即可恢复过滤状态。由于利用排气管3排出的二次洁净热气流反吹清灰,有效防止了除尘器内的结露。During work, the dust-containing flue gas discharged from the cement shaft kiln or drying enters the interior of the ash hopper 9 below the dust collector housing 7 through the central air inlet pipe 1, and the coarse dust in the dust-laden flue gas is blocked by the diversion cone 10 and The effect of its own gravity directly falls into the ash hopper 9, and the dust is pre-separated. At the same time, under the negative pressure generated by the dust-removing induced draft fan, the flue gas blocked by the guide cone 10 evenly passes through the lower flower plate 8 and enters the filter bags 6 in each chamber of the housing 7, and the dust is retained on the inner surface of the filter bags 6 , the dusty gas is filtered through the filter bag 6 to be purified, and the purified gas is discharged through the upper flower plate 5, the three-way switching valve 2 and the exhaust pipe 3. After the dust collector runs for a period of time, the dust layer collected on the inner surface of the filter bag 6 becomes thicker, and the running resistance of the dust collector increases. When it increases to a certain value, it is necessary to clean the filter bag 6 in a certain sub-chamber. When the microcomputer commands the three-way switching valve 2 to interrupt the communication between the sub-chamber and the exhaust pipe 3, at the same time the three-way switching valve 2 connects the reverse blowing pipe 4 to the sub-chamber, and part of the secondary clean hot air discharged from other sub-chambers is discharged from the exhaust pipe. The branch pipe of 3 enters the reverse blow pipe 4 through the reverse blower. At this time, because the three-way switching valve 2 has connected the reverse blow pipe 4 with the sub-chamber, the secondary clean hot air reaches the sub-chamber. The airflow direction at this time is the same as that of the air exhaust The direction of the air flow is opposite, and the secondary clean hot air compresses and deforms the originally expanded filter bag 6 under the action of the reverse blower, removes the dust attached to the inner surface of the filter bag 6, and the cleaned dust falls into the ash hopper 9. After the cleaning is completed, only need to command the three-way switching valve 2 to connect the sub-chamber with the exhaust pipe 3, and at the same time, the three-way switching valve 2 to make the reverse blow pipe 4 communicate with the sub-chamber to restore the filtering state. Due to the use of the secondary clean hot air discharged from the exhaust pipe 3 to blow back the soot, the dew condensation in the dust collector is effectively prevented.

Claims (3)

1.一种玻纤袋式除尘器,含有壳体、滤袋、上花板、下花板、三通切换阀、排风管、反吹风管、灰斗、联通管、排灰阀,上花板和下花板分别设置在壳体内上部和下部,上花板和下花板之间设有滤袋,壳体下部设有灰斗,壳体顶部安装有排风管、反吹风管、联通管及三通切换阀,反吹风管与反吹风机出口相联,其特征在于:还含有导流锥、中心进风管,所述壳体为圆筒形结构,所述中心进风管设置在所述壳体的顶部中央并穿过所述壳体内部的所述上花板和所述下花板进入所述灰斗内,所述中心进风管的下方设置所述导流锥且在所述灰斗的中心上方,所述反吹风机进口与所述排风管的支管相联通。1. A glass fiber bag-type dust collector, including a shell, a filter bag, an upper flower plate, a lower flower plate, a three-way switching valve, an exhaust pipe, an anti-blowing pipe, an ash hopper, a communication pipe, an ash discharge valve, and an upper The flower plate and the lower flower plate are respectively arranged at the upper and lower parts of the shell, a filter bag is arranged between the upper flower plate and the lower flower plate, an ash hopper is arranged at the lower part of the shell, and an exhaust pipe, an anti-blow pipe, Unicom pipe and three-way switching valve, anti-blow pipe connected to the outlet of anti-blow blower, characterized in that: it also contains a diversion cone, a central air inlet pipe, the shell is a cylindrical structure, and the central air inlet pipe is set In the center of the top of the housing and through the upper flower plate and the lower flower plate inside the housing, enter the ash hopper, the guide cone is arranged below the central air inlet pipe and Above the center of the ash hopper, the inlet of the reverse blower communicates with the branch of the exhaust pipe. 2.根据权利要求1所述的一种玻纤袋式除尘器,其特征在于:所述壳体内至少分为四个分室。2. A glass fiber bag filter according to claim 1, characterized in that: the housing is divided into at least four compartments. 3.根据权利要求1所述的一种玻纤袋式除尘器,其特征在于:所述灰斗为圆锥形结构。3. A glass fiber bag filter according to claim 1, characterized in that: the ash hopper has a conical structure.
CN03259335.XU 2003-07-07 2003-07-07 Glass fiber bag-type dust collector Expired - Fee Related CN2626585Y (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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CN107051029A (en) * 2017-05-18 2017-08-18 江苏金圆新材科技有限公司 Brick mix structure glass-fiber bagged dust collector and its ash removal method
WO2018113860A1 (en) * 2016-12-22 2018-06-28 Gea Process Engineering A/S Powder drying system with improved inlet arrangement to the filter unit and method of operating the filter unit of such a system
CN108554075A (en) * 2017-10-20 2018-09-21 中钢集团天澄环保科技股份有限公司 Vertically enter the wind sack cleaner in top
CN108854295A (en) * 2018-06-29 2018-11-23 靳瑞 A kind of new-type bag filter
CN113101760A (en) * 2021-04-16 2021-07-13 广东韶钢松山股份有限公司 Dust removal device and dust remover

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018113860A1 (en) * 2016-12-22 2018-06-28 Gea Process Engineering A/S Powder drying system with improved inlet arrangement to the filter unit and method of operating the filter unit of such a system
CN110121625A (en) * 2016-12-22 2019-08-13 基伊埃工程技术股份有限公司 The powder drying system of improvement inlet device with filter unit and the method that the filter unit of this system is operated
EP3559577A1 (en) * 2016-12-22 2019-10-30 GEA Process Engineering A/S Powder drying system with improved inlet arrangement to the filter unit and method of operating the filter unit of such a system
CN110121625B (en) * 2016-12-22 2021-09-14 基伊埃工程技术股份有限公司 Powder drying system with improved inlet device for filter unit and method for operating filter unit of such system
CN107051029A (en) * 2017-05-18 2017-08-18 江苏金圆新材科技有限公司 Brick mix structure glass-fiber bagged dust collector and its ash removal method
CN108554075A (en) * 2017-10-20 2018-09-21 中钢集团天澄环保科技股份有限公司 Vertically enter the wind sack cleaner in top
CN108554075B (en) * 2017-10-20 2019-12-13 中钢集团天澄环保科技股份有限公司 Bag type dust collector with vertical air inlet at top
CN108854295A (en) * 2018-06-29 2018-11-23 靳瑞 A kind of new-type bag filter
CN108854295B (en) * 2018-06-29 2020-12-04 京鼎工程建设有限公司 Bag-type dust collector
CN113101760A (en) * 2021-04-16 2021-07-13 广东韶钢松山股份有限公司 Dust removal device and dust remover

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