CN211963412U

CN211963412U - Bag type dust collector

Info

Publication number: CN211963412U
Application number: CN201922488612.0U
Authority: CN
Inventors: 成毅; 何晓秋; 方旭东; 张云根; 刘卫星
Original assignee: Chongqing Changjiang Survey And Design Institute
Current assignee: Chongqing Changjiang Survey And Design Institute
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-11-20
Anticipated expiration: 2029-12-31

Abstract

The utility model belongs to the technical field of dust collecting equipment technique and specifically relates to a bag collector is related to. The dust removal device comprises an inlet, a dust removal chamber, an air source, a dust removal device, an air outlet chamber and an outlet, wherein the inlet is communicated with the dust removal chamber, the outlet is communicated with the air outlet chamber, and the dust removal device comprises a bag cage, a filter bag and an ash scraping device; a layer of filter bag covers the outside of the bag cage, and the filter bag filters dust-containing gas entering the gas outlet chamber from the dust removal chamber; scrape grey device and include wind-force drive arrangement and scrape grey part, should scrape grey part and locate filter bag has the surface of dust, scrape on grey part locates wind-force drive arrangement, through the wind regime drives wind-force drive arrangement and rotates, and then the drive is scraped grey part and is being filtered the surperficial rotation of filter bag deposition, is scraped the ash. The ash scraping component arranged on the outer surface of the filter bag rotates and scrapes ash on the outer surface of the filter bag, and the ash scraping component directly contacts with the outer surface of the filter bag, so that ash can be effectively removed from the outer surface of the filter bag, and an efficient ash removing effect is achieved.

Description

Bag type dust collector

Technical Field

The utility model belongs to the technical field of dust collecting equipment technique and specifically relates to a bag collector is related to.

Background

In the metallurgical, mining, chemical, cement and other industries, dust-containing gas is generated. The dust-containing gas can greatly pollute the atmosphere, so that the dust removal of the dust-containing gas is very necessary. In these industries, bag house dust collectors are commonly used as dust collecting equipment, and the working principle of the bag house dust collectors is that dust-containing gas is introduced into the dust collectors and permeates through filter bags arranged in the dust collectors, dust particles are intercepted and retained on the surfaces of the filter bags to form a dust layer, and the filtered clean air passes through the filter bags and then is discharged out of the dust collectors. After the bag type dust collector operates for a period of time, the dust layer accumulated on the dust facing surface of the filter bag of the bag type dust collector becomes thicker and thicker, so that the resistance loss of the dust collector is increased, and the dust collection efficiency of the dust collector is seriously influenced. Therefore, the bag-type dust collector needs to perform the dust cleaning process regularly after running for a certain time.

Common ash removal methods include pulse-jet ash removal and manual ash removal. The pulse blowing ash removal mode is that high-pressure air is blown into a filter bag at a high speed in a short time to generate back blowing gas opposite to the filtering gas, so that pulse expansion vibration is generated in the filter bag, and dust is shaken off. However, the frequent use of pulse back blowing and the high wind speed cause the fiber clearance of the filter bag to be stressed frequently, thereby increasing the damage and the replacement speed of the filter bag, and the dust removal effect is not ideal and the pollution of the operating environment is serious. The manual ash removal mode is high in cost and has certain influence on the health of ash removal workers, so that the problem needs to be solved by designing a bag type dust remover for efficiently removing ash.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to the above-mentioned not enough and provide a bag collector that exists among the prior art to solve the technical problem that current bag collector can not high-efficiently deashing in the deashing process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a bag type dust collector comprises an inlet, a dust removing chamber, an air source, a dust removing device, an air outlet chamber and an outlet, wherein the inlet is communicated with the dust removing chamber, the outlet is communicated with the air outlet chamber, and the dust removing device comprises a bag cage, a filter bag and an ash scraping device; a layer of filter bag covers the outside of the bag cage, and the filter bag filters dust-containing gas entering the gas outlet chamber from the dust removal chamber;

scrape grey device and include wind-force drive arrangement and scrape grey part, should scrape grey part and locate filter bag has the surface of dust, scrape on grey part locates wind-force drive arrangement, through the wind regime drives wind-force drive arrangement and rotates, and then the drive is scraped grey part and is being filtered the surperficial rotation of filter bag deposition, is scraped the ash.

Through adopting above-mentioned technical scheme, in the dusty air got into the dust removal chamber from the entry, and dust collector filtered through the dusty air in the dust removal chamber, and the air entering through the filtration goes out the air chamber, discharges through the export again. The dust removal device comprises a bag cage and a filter bag, wherein the bag cage supports the flexible filter bag, namely, a layer of filter bag covers the outside of the bag cage, and the filter bag filters dust-containing air. After dust collector moved a period, the surface of crossing the filter bag can be piled up there is the dust, the ash device carries out the deashing to crossing the filter bag by the rethread, it includes wind-force drive arrangement and scrapes grey part to scrape grey device, it locates on the wind-force drive arrangement to scrape grey part, it is rotatory to drive wind-force drive arrangement through the wind regime, and then it is rotatory to drive and scrape grey part, because scrape grey part setting and at the surface of crossing the filter bag, when wind-force drive arrangement drove and scrape grey part rotatory, it alright scrape the dust of crossing the filter bag surface and rub to scrape grey part alright, the dust can drop thereupon, reach the deashing effect to dust collector.

To sum up, the utility model discloses a beneficial technological effect does: the ash scraping component arranged on the outer surface of the filter bag rotates and scrapes ash on the outer surface of the filter bag, and directly contacts with the outer surface of the filter bag, so that ash can be effectively removed from the outer surface of the filter bag, and an efficient ash removing effect is achieved.

Drawings

Fig. 1 is a schematic structural diagram of the bag-type dust collector of the present invention.

Fig. 2 is a schematic structural diagram of the dust removing device of the present invention.

Fig. 3 is a schematic structural view of the bag cage of the present invention.

Fig. 4 is a schematic structural diagram of the filter bag of the present invention.

Fig. 5 is a schematic structural view of the ash scraping plate of the present invention.

Fig. 6 is a schematic structural view of the wind power driving device of the present invention.

Fig. 7 is a schematic structural view of the ventilation channel of the present invention.

In the figure, an inlet 100, a dust hopper 200, a dust chamber 300, a partition plate 310, a dust removing device 400, a bag cage 410, a filter bag 420, a wind power driving device 430, fan blades 431, a bearing 432, an inner ring 4321, an outer ring 4322, an ash scraping plate 440, an air outlet chamber 500, an outlet 600, a ventilation channel 700, an air outlet 710 and an air compressor 800.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

referring to fig. 1, the dust-containing gas enters the dust removing chamber 300 through the inlet 100, the dust-containing gas is filtered by the dust removing device 400, and the filtered clean air enters the air outlet chamber 500 and is discharged through the outlet 600, specifically, the dust collecting hopper 200 is further arranged at the bottom end of the dust removing chamber 300, and collects the dust in the dust removing chamber 300 and the dust falling off when the dust removing device 400 removes the dust.

Referring to fig. 2, the bag cage 410 supports the filter bag 420, the dust-containing air is filtered by the filter bag 420, after the dust collector operates for a period of time, dust is accumulated on the outer surface of the filter bag 420, the accumulated dust in the filter bag 420 needs to be cleaned by the dust scraping device, the dust scraping device comprises a wind power driving device 430 and a dust scraping component, the dust scraping component is arranged on the outer surface of the filter bag 420 where the dust is accumulated and is connected with the wind power driving device 430, the wind power driving device 430 is driven by a wind source, and then the dust scraping component on the wind power driving device 430 is driven to rotate, when the dust scraping component arranged on the outer surface of the filter bag 420 rotates, the dust scraping component can generate scraping force on the outer surface of the filter bag 420 supported by the bag cage 410, the dust on the outer surface of the filter bag 420 is scraped, and the accumulated dust on the filter bag 420 is. The wind power is used for driving the dust scraping component to rotate, the dust on the filter bag 420 is cleaned physically, and the dust scraping component is in direct contact with the surface of the filter bag 420, so that the cleaning capacity of the dust on the surface of the filter bag 420 can be greatly improved.

Referring to fig. 3 to 5 together, the bag cage 410 is a rigid cage-shaped structure, and supports the filter bag 420, that is, the outer surface of the bag cage 410 is covered with a layer of filter bag 420, as shown in fig. 1, the dust chamber 300 and the gas outlet chamber 500 are separated by a partition 310, the partition 310 is provided with an opening, and the filter bag 420 supported by the bag cage 410 extends into the dust chamber 300 and is fixed on the partition 310, so as to filter the dust chamber 300. And the wind power driving device 430 is connected with the wind power driving device 430 at the edge of the opening towards one end of the dust removing chamber 300, specifically, the dust scraping part is a dust scraping plate 440 with a groove matched with the filter bag 420 supported by the bag cage 410, and when the dust scraping plate 440 rotates under the action of the wind power driving device 430, the outer surface of the filter bag 420 can be cleaned in all directions. The bag cage 410 and the filter bag 420 are arranged separately, so that when the filter bag 420 is replaced, the ash scraping device does not need to be adjusted or moved, and the bag cage is more convenient.

Referring to fig. 6, the specific structure of the wind power driving device 430 includes a bearing 432 and fan blades 431, an inner ring 4321 of the bearing 432 is fixedly connected to an opening edge of the partition plate 310, an outer ring 4322 is fixedly connected to the fan blades 431, and an end surface of the inner ring 4321 near one end of the partition plate extends out of an end surface of the outer ring 4322, that is, the height of the inner ring 4321 is higher than that of the outer ring 4322 with respect to the height of the end surfaces of the inner ring 4321 and the outer ring 4322, the inner ring 4321 is fixed, the fan blades 431 are blown by a wind source to drive the outer ring 4322 of the bearing 432 to rotate, and since the inner ring 4321 of the bearing 432 is higher, the outer ring 4322 is prevented from contacting the partition plate 310 to affect the rotation of the outer ring 4322, it can be understood that a sleeve is also provided at the opening edge of the partition plate 310. The rotating outer ring 4322 is fixedly connected to the ash scraping component, thereby driving the ash scraping component to rotate, and the ash scraping component is specifically arranged at one end of the outer ring 4322, which faces away from the partition plate 310. The outer surface of the outer ring 4322 of the known bearing 432 structure is connected with the fan blades to form the wind power driving device, so that the wind power driving device is easy to realize in the production process, the design and manufacturing cost during production can be saved, and meanwhile, a good wind power driving effect can be achieved. Meanwhile, the wind power is used for driving, so that one power source can drive a plurality of to-be-driven pieces (dust scraping plates) at the same time; in addition, the structure is more compact, the dust remover with the tank type structure is particularly important for the dust remover which cannot be provided with a complex transmission part, and pipelines such as hoses and the like can be used for conveying compressed air, so that the dust remover is beneficial to flexible laying and can be well adapted to the internal volume space of the dust remover.

Referring to fig. 7, at least 4 dust removing devices 400 are provided, and the dust removing devices 400 are arranged in two staggered rows, and a ventilation channel 700 communicated with an air source is provided between the two rows of dust removing devices 400 to separate the two rows of dust removing devices 400 from air, and air outlets 710 corresponding to the dust removing devices 400 in number and position are provided on the ventilation channel 700 toward the corresponding side of the dust removing device 400 on the dust removing device 400. As shown in fig. 7, a curved S-shaped ventilation channel 700 is disposed between the two rows of dust collectors 400, and air outlets 710 corresponding to the dust collectors 400 are disposed at two sides of the ventilation channel 700, the ventilation channel 700 is communicated with the air compressor 800, the air compressor 800 supplies air to the ventilation channel 700, and the air outlets 710 discharge air to the corresponding dust collectors 400 to drive the wind-driven devices 430 on the dust collectors 400. The ventilation channel 700 with the air outlet 710 can realize that one air source can provide driving force for the wind power devices on the dust removal devices 400 at the same time, a plurality of air sources are not required to be arranged, the cost is saved, the structure is simple, and the manufacturing and the maintenance are easy. Meanwhile, the dust removing devices 400 arranged in a staggered manner can reduce the influence of air flows generated during rotation.

It will be appreciated that the construction of the scraping plate 440 described above may be of other configurations, such as a "J" shape, as may be desired, while still providing full cleaning of the outer surface of the filter bag 420 where dust is deposited during rotation.

Further, the dust scraper 440 is preferably made of a light, thin and lightweight material while ensuring rigidity.

Further, the surface of the dust scraper 440 contacting the filter bag 420 may be made of a relatively flexible material, such as rubber, to prevent the filter bag 420 from being scraped.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a bag collector, includes entry (100), clean room (300), wind regime, dust collector (400), goes out air chamber (500) and export (600), and entry (100) and clean room (300) intercommunication, export (600) and go out air chamber (500) intercommunication, its characterized in that: the dust removal device (400) comprises a bag cage (410), a filter bag (420) and an ash scraping device; a layer of filter bag (420) covers the bag cage (410), and the filter bag (420) filters the dust-containing gas entering the gas outlet chamber (500) from the dust removing chamber (300);

scrape grey device and include wind-force drive arrangement (430) and scrape grey part, should scrape grey part and locate filter bag (420) accumulate the surface that has the dust, scrape on grey part locates wind-force drive arrangement (430), through wind source drives wind-force drive arrangement (430) and rotates, and then the drive is scraped grey part and is being rotatory, is scraped the ash on the surface of filter bag (420) deposition.

2. A bag house as defined in claim 1, wherein: the dust removal chamber (300) and the air outlet chamber (500) are separated by a partition plate (310), the bag cage (410) and the filter bag (420) extend into the dust removal chamber (300) through an opening in the partition plate (310), and the wind power driving device (430) is arranged at the edge of one end of the opening facing the dust removal chamber (300);

the wind power driving device (430) comprises a bearing (432) and fan blades (431), the fan blades (431) are fixedly connected with the outer surface of an outer ring (4322) of the bearing (432), the outer ring (4322) faces away from one end of the partition plate (310) and is fixedly connected with the ash scraping component, and the end face of an inner ring (4321) of the bearing (432) extends out of the end face of the outer ring (4322) and is fixedly arranged at the opening edge of the partition plate (310).

3. A bag house as defined in claim 2, wherein: the number of the dust removing devices (400) is at least four, and the dust removing devices are arranged in two rows in a staggered mode.

4. A bag house as defined in claim 3, wherein: the dust removal device is characterized by further comprising a ventilation channel (700) communicated with the air source, the ventilation channel (700) is arranged between the dust removal devices (400) which are arranged in two rows in a staggered mode to separate the two rows of dust removal devices (400), and air outlets (710) which are consistent in number and correspond in position to the dust removal devices (400) are arranged on the corresponding side faces, facing the dust removal devices (400), of the ventilation channel (700).

5. A bag house as defined in claim 4, wherein: the air source is an air compressor (800), and the air outlet (710) faces to the tangential direction of the rotating circumference of the fan blade (431).

6. A bag house as defined in claim 2, wherein: the ash scraping component is an ash scraping plate (440), the ash scraping plate (440) is provided with a groove matched with a filter bag (420) supported by the bag cage (410), the groove is approximately U-shaped, and the notch end of the groove is fixedly connected to one end, back to the partition plate, of the outer ring (4322).