CN207049962U - A kind of rotary type flue-pipe dust-controlling apparatus based on magnetic traction - Google Patents

Abstract

The utility model is a rotary flue dedusting device based on magnetic traction, which comprises a bottom frame, a transmission gear set, a driving motor, a transmission cage, a flue connecting cylinder, a dust removal scraper and an axial fixing unit; the flue connecting cylinder is fixed On the bottom frame and embedded in the transmission cage; the transmission gear set is driving the transmission cage to roll; the axial fixed unit includes an arc-shaped gear plate, a screw transmission gear, a fixed rod and a magnet carrier tool; the fixed rod is set on the transmission cage; the screw drive gear is fixedly connected with one end of the fixed rod, and the arc-shaped gear plate is fixed on the bottom frame; the dust removal scraper is placed on The flue is connected to the inside of the barrel; when the screw drive gear meshes with the arc-shaped gear plate, the magnet carrier drives the dust removal scraper to move axially. The utility model is a rotary flue dust removal device based on magnetic traction, which has good dust removal effect, realizes no obstacles in the flue, and ensures smooth circulation of flue gas.

Description

A rotary flue dust removal device based on magnetic traction

technical field

The utility model relates to the technical field of dust removal equipment, in particular to a rotary flue dust removal device based on magnetic traction.

Background technique

In the current enterprises, a flue is usually installed in the combustion furnace and kiln to transport the flue gas and small particle dust generated during the combustion to the dust removal equipment. However, during use, some smoke and dust will continue to adhere to the inner wall of the flue. After long-term use, if the humidity of the flue gas is high and the temperature of the flue gas is lower than the acid dew point, the ash will scale on the wall of the flue. . If these scales accumulate over the years, the flue will be blocked, which will affect the emission of flue gas and the use of the combustion furnace. In order to prevent the dust in the flue gas from depositing in the flue, it is generally required that the flue gas flow rate of the pipeline is 10-15 m/s. Due to special reasons, the flue gas flow rate must be reduced to about 7 m/s, which will inevitably cause ash to accumulate in the flue, and if the humidity of the flue gas is high and the flue temperature is lower than the acid dew point, the ash will scale on the flue wall. The flue gas working conditions are as follows: flue gas temperature: 125°C; dust concentration: 30g/Nm3. The main components of the dust are as follows: total moisture: 21%; received base ash: 14.37%; received base oxygen: 9.4%, total sulfur: 0.8%; silicon dioxide: 44.67%; calcium oxide: 11.36%; : 19.27%; ferric oxide: 7.23%.

Effective flue dust removal devices are still rare in the market at present, and the existing flue dust removal devices mainly use soot blowers. And the sootblowers are mainly steam sootblowers, sonic sootblowers and shock wave sootblowers. Currently the most widely used and most effective is the steam sootblower. However, due to the characteristics of the structure and medium, and the influence of the high temperature environment, the barrel of the soot blower is prone to jamming, failure, air leakage, etc., the equipment failure rate is relatively high, and a high level of maintenance is required. damage to the pipe wall. Due to the general effect of domestically produced soot blowers, the soot blowing effect is not obvious, and basically cannot remove the existing soot accumulation. Only when the soot blowing is used to prevent the occurrence of soot blowing opportunities, it must be manually cleaned once before soot blowing Otherwise, stubbornness cannot be eliminated, so it will be a burden on manpower. The gas pulse shock wave sootblower can only be used in the lower part of the tail flue where the temperature is relatively low due to the consideration of high-temperature flue gas and gas leakage after deflagration. Secondly, there are certain potential safety hazards. Once the unreasonable structure and production quality are involved, it is easy to cause the leakage of combustible gas and cause safety accidents.

According to the current development status and market demand, it is very necessary to study the key technology of a new flue dust cleaning device that is easy to maintain and install, cleans up thoroughly, saves human resources, and is safe.

Utility model content

In view of the technical problems existing in the background technology, the purpose of this utility model is to overcome the shortcomings of the prior art, and to provide a magnetic traction-based rotation system with good dust removal effect, no obstructions in the flue, and smooth flow of flue gas. Type flue dust removal device.

In order to solve the above technical problems, the utility model adopts the following technical measures:

A rotary flue dust removal device based on magnetic traction, comprising a chassis, a transmission gear set, a drive motor, a transmission cage, a flue connecting cylinder, a dust removal scraper and an axial fixing unit; the flue connecting cylinder is fixed on the The bottom frame is embedded in the transmission cage; the transmission gear set drives the transmission cage to roll under the drive of the drive motor; the axial fixing unit includes a fixed rod and a sleeve sleeved on the fixed rod The magnet carrier, the fixed rod is fixed on the transmission cage; the magnet carrier includes a carrier body and a second magnet; the dust removal scraper includes a scraper body and a first magnet; the dust removal scraper is placed on the The length of the main body of the scraper is greater than or equal to the length in the axial direction of the flue connection barrel; when the transmission cage rolls, the magnet carrier drives the dust removal scraper to do the flue connection Circular motion in the barrel.

As a further improvement, the magnet carrier further includes a second cylindrical fixing block; the cross section of the carrier body is H-shaped; the second magnet is fixedly arranged on the carrier body, and the second magnet is close to The outer wall of the flue connecting cylinder is arranged; the four corners of the upper surface of the carrier body opposite to the outer wall of the flue connecting cylinder are inlaid with a second cylindrical fixing block.

As a further improvement, the dust removal scraper further includes a first cylindrical fixed block; the overall shape of the dust removal scraper is an isosceles trapezoid; a transverse groove is opened on the scraper body; the transverse groove is used to fix the first magnet and The first cylindrical fixing block.

As a further improvement, the first magnet and the second magnet are arranged facing each other; the number of the first cylindrical fixing block is two and are respectively arranged on both sides of the first magnet; the first cylindrical fixing block The two sides are respectively provided with fixing plates.

As a further improvement, the transmission cage includes two ring gears and several steel pipes fixed between the ring gears; the transmission cage is limited and fixed by the fixing columns on the bottom frame.

As a further improvement, a guide slide is further provided between the ring gear and the flue connecting cylinder; the guide slide includes a fixed seat fixed on the outer wall of the flue connect The guide pulley on the seat; the guide pulley abuts against the inner wall of the ring gear.

As a further improvement, the transmission gear set includes a driving transmission gear, a connecting rod, and a first driven gear, a second driven gear, and a third driven gear fixed on the connecting rod; the driving transmission gear and the The driving motor is connected; the first driven gear is meshed with the driving transmission gear; the second driven gear and the third driven gear are respectively meshed with the ring gear; the connecting rod is fixed on the fixed column.

Compared with the prior art, the utility model has the following advantages:

1. The utility model is a rotary flue dedusting device based on magnetic traction, which uses a magnet carrier to drive the dust removal scraper. The driving part is outside the flue, and only the scraper part is kept inside the flue. The driving part and the dust removal scraper pass through the permanent magnet. The magnetic force attracts each other, which ensures that the two can be close to the pipe wall while one moves synchronously with the other, so that there is no large obstacle in the flue, and the space occupied in the flue is reduced to the greatest extent. The impact is almost zero, which ensures the smooth flow of flue gas in the flue, and the cleaning effect is good.

2. The main body of the scraper in a rotary flue dedusting device based on magnetic traction of the utility model adopts a length equal to the axial length of the flue connecting cylinder, and at the same time, combined with the circular movement of the transmission cage, it can effectively ensure the dust in the flue connecting cylinder. Every position can be scraped, the cleaning efficiency is high, and the cleaning effect is good.

3. The magnetic traction-based rotary flue dedusting device of the utility model adds a cylindrical fixed block to the magnet carrier and the dust removal scraper, which can effectively reduce the friction between the two and the flue connecting cylinder, so that the adsorption Movement is more responsive.

4. The utility model is a rotary flue dust removal device based on magnetic traction. The transmission equipment is installed outside the flue, which is more convenient for maintenance, installation, inspection, etc., easy to operate and control, and any staff can easily use it.

5. The utility model is a magnetic traction-based rotary flue dust removal device. The guide pulley is used as a supporting wheel, which plays the role of support and rolling, and changes sliding friction into rolling friction, greatly reducing friction.

Description of drawings

Accompanying drawing 1 is the structural representation of a kind of rotary flue dust removal device based on magnetic traction of the present utility model;

Accompanying drawing 2 is the structure diagram of a kind of rotary flue dedusting device based on magnetic traction of the present utility model;

Accompanying drawing 3 is a structural schematic diagram of the magnet carrier in a rotary flue dust removal device based on magnetic traction of the present invention;

Accompanying drawing 4 is the structural schematic diagram of the dust removal scraper in a rotary flue dust removal device based on magnetic traction of the present invention.

Description of main component symbols

Underframe 10, rectangular frame 11, fixed column 12,

Transmission gear set 20, driving transmission gear 21, connecting rod 22, first driven gear 23, second driven gear 24, third driven gear 25,

drive motor 30,

Transmission cage 40, ring gear 41, steel pipe 42,

Flue connecting cylinder 50, first connecting cylinder 51, second connecting cylinder 52, soot blowing pipe 53, inclined through hole 54,

Dust removal scraper 60, scraper body 61, first magnet 62, first ball fixing block 63, fixing plate 64

Axial fixing unit 70, magnet carrier 71, carrier body 711, second magnet 712, second ball fixing block 713, fixing rod 72,

Guide slider 80, fixed seat 81, guide pulley 82,

detailed description

In order to make the purposes, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments described above are some of the embodiments of the present utility model, but not all of them. Based on the implementation manners in the present utility model, all other implementation manners obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model. Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the implementation manners in the present utility model, all other implementation manners obtained by those skilled in the art without making creative efforts belong to the scope of protection of the present utility model.

In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the Describes, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as limiting the present invention.

In this utility model, unless otherwise specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connection, or integration; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components or the interaction relationship between two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

Please refer to Figures 1 to 4. In the embodiment, a rotary flue dust removal device based on magnetic traction includes a chassis 10, a transmission gear set 20, a drive motor 30, a transmission cage 40, a flue connecting cylinder 50, and a dust removal scraper. 60 and the axial fixing unit 70, the drive motor 30 adopts such a structure as a whole to realize the circular movement and axial movement of the dust removal scraper 60 on the flue connecting cylinder 50, the structure is simple and the function is easy.

Further, the underframe 10 includes a horizontally arranged rectangular frame 11 and a fixed column 12 arranged vertically to the ground; the flue connecting cylinder 50 is fixed on the fixed column 12 and embedded in the transmission cage 40 ; The transmission gear set 20 drives the transmission cage 40 to roll under the drive of the drive motor 30; the axial fixing unit 70 includes a fixed rod 72 and a magnet carrier 71; the fixed rod 72 is arranged on the transmission cage 40; the magnet carrier 71 includes a carrier body 711 and a second magnet 712, and the carrier body 711 is sheathed and fixed on the fixed rod 72; the dust removal scraper 60 is placed on the flue connecting cylinder 50, the dust removal scraper 60 includes a scraper body 61 and a first magnet 62, the length of the scraper body 61 is greater than or equal to the length in the axial direction of the flue connecting cylinder; when the transmission cage 40 rolls, the magnet The carrier 71 drives the dust removal scraper 60 to make a circular movement inside the flue connecting cylinder 50 .

Further, the length of the scraper body 61 is equal to the length in the axial direction of the flue connecting cylinder 50; using such a length setting combined with the circular movement of the drive cage can ensure that all positions in the axial direction will be covered by the The main body of the scraper is scraped, and the cleaning effect is good.

Please refer to Fig. 2 and Fig. 3, in the embodiment, the carrier body 74 further includes several second ball fixing blocks 713; the cross section of the carrier body 711 is H-shaped; the number of the fixing rods 72 The fixed rod 72 is made of carbon steel with a lead of 8mm; the number of the second magnet 712 is three; the second magnet 712 is fixedly arranged on the carrier body 711, The second magnet 712 is arranged close to the outer wall of the flue connecting cylinder 50; four fixing grooves are opened on the four corners of the upper surface of the carrier body 711 opposite to the outer wall of the flue connecting cylinder 50, and inside the fixing grooves Each is inlaid with a second cylindrical fixing block 713; the second cylindrical fixing block 713 includes a ball part and a fixing part, and adopting such a structure can effectively reduce the friction with the flue connecting cylinder 50, so that the adsorption Movement is more responsive.

Please refer to FIG. 1 and FIG. 4 , in the embodiment, the dust removal scraper 60 is in the shape of an isosceles trapezoid as a whole; the lower surface of the scraper body 61 has a transverse groove; the transverse groove is used to fix the first magnet 62 and Several first cylindrical fixing blocks 63 . The material of the dust removal scraper 60 is 304 stainless steel plate. The yield limit and stress of the material are relatively good. At the same time, the dust removal scraper 60 adopts a trapezoidal shape to reduce the volume and quality of the cutter, and is more conducive to scraping dust.

Further, the number of the first magnets 62 and the second magnets 712 are three and they are arranged opposite to each other; the first magnets 62 and the second magnets 712 are arranged in a straight line and closely arranged one by one; The number of the first cylindrical fixing block 63 is two and are respectively arranged on both sides of the two first magnets 62 on the outermost side; the two sides of the first cylindrical fixing block 63 are respectively provided with a fixing plate 64, and the fixing plate 64 is used to fix the position between the first magnet 62 and the first cylindrical fixed block 63 to prevent the first magnet 62 and the first cylindrical fixed block 63 from coming out or misaligned in the process of circular motion. shift.

Specifically, the magnet material of the first magnet 62 and the second magnet 712 is selected from the strongest NdFeB magnet among the magnets, and the specifications of the first magnet 62 and the second magnet 712 It is 50mm*30mm*10mm, then its magnet weight = (5*3*1)*7.5 (density) = 112.5g, according to the introduction of the powerful magnet encyclopedia: the magnetic force of the NdFeB magnet itself is about 640 times its own weight, and the two magnets The maximum distance apart is 20mm, so the magnetic force of the magnet is about F=300*112.5=337.5N. Therefore, according to the design, three NdFeB magnets are required on the dust removal scraper 60 or the magnet carrier 71; the total suction force is about: F=1012.5N.

In summary, the magnet carrier 71 is used to drive the dust removal scraper 60, the driving part is outside the flue, and only the scraper part is kept inside the flue, and the driving part and the dust removal scraper 60 are attracted to each other by the magnetic force of the permanent magnet, ensuring that the two can be tightly Sticking to the pipe wall while one moves synchronously with the other, there is no large obstacle in the flue, which minimizes the space occupied in the flue, and has almost zero influence on the flow of flue gas, ensuring that the flue in the flue The smooth flow of gas, the cleaning effect is good.

Please refer to Fig. 1 , in the embodiment, when the dust removal scraper 60 and the magnet carrier 71 run from the bottom of the flue connecting cylinder 50 to the top of the flue connecting cylinder 50, the driving motor 30 is required to drive the transmission cage 40 turns. When running from the bottom of the flue connecting cylinder 50 to the bottom of the flue connecting cylinder 50, it can slide down by its own weight, so the energy consumption is also greatly reduced.

Please refer to FIG. 1 , in the embodiment, the transmission cage 40 includes two ring gears 41 and several steel pipes 42 fixed between the ring gears 41; The fixed column 12 is fixed in a limit to ensure that the transmission cage 40 will not slide, and the steel pipe 42 is fixedly connected to the ring gear 41 by bolts, so the overall structure is stable.

Please refer to FIG. 1 , in the embodiment, a guide slide 80 is further provided between the ring gear 41 and the flue connecting cylinder 50; The fixed seat 81 on the outer wall and the guide pulley 82 rollingly connected to the fixed seat 81 ; the guide pulley 82 abuts against the inner wall of the ring gear 41 .

Further, an annular circular groove may be formed on the inner wall of the ring gear 41 to match with the guide pulley 82 and further ensure the stability of the rotation track.

Please refer to FIG. 1, in the embodiment, the transmission gear set 20 includes a driving transmission gear 21, a connecting rod 22 and a first driven gear 23, a second driven gear 24, a third driven gear fixed on the connecting rod 22 Driven gear 25; Described driving gear 21 is connected with described driving motor 30; Described first driven gear 23 is meshed with described driving gear 21; Described second driven gear 24 and the 3rd driven gear The moving gears 25 mesh with the ring gears 41 respectively; the connecting rod 22 is fixed on the fixing post 12 . The overall adoption of such a structure can effectively change the transmission of the gear into the rotation of the ring gear 41, and the entire transmission equipment is installed outside the flue, which is convenient for maintenance, installation, inspection, etc., easy to operate and control, and any staff can easily use it.

In addition, please refer to 1. In the embodiment, the flue connecting cylinder 50 may further include a first connecting cylinder 51, a second connecting cylinder 52 and a soot blowing duct 53 arranged between the two connecting cylinders; The first connecting cylinder 51 is provided with several inclined through-holes 54 which are connected to the soot-blowing duct 53 by the inner wall of the flue connecting cylinder 50 to define the connection between the inclined through-holes 54 and the soot-blowing duct 53 The angle between the gas delivery directions is α, wherein the angle of α is 40°～50°, preferably, the value of α is 45°, and the inclined through holes 54 are arranged at equal intervals, and through the soot blowing through pipe 53 Inject high-pressure gas, and transport the ash and scale scraped off the inner wall of the flue connecting cylinder 50 by the dust removal scraper 60 to the dust collecting hopper arranged at the tail of the flue connecting cylinder 50 .

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. within the spirit and principles of the present utility model shall include Within the protection scope of the utility model.

Claims (7)

1. A kind of 1. rotary type flue-pipe dust-controlling apparatus based on magnetic traction, it is characterised in that：Including chassis, driving gear set, driving Motor, transmission cage, flue connecting cylinder, dedusting scraper and axial restraint unit；The flue connecting cylinder is fixed on the chassis And it is embedded in the transmission cage；The driving gear set drives the transmission cage to roll under motor driving；Institute Stating axial restraint unit includes fix bar and is arranged the magnet carrier being fixed in the fix bar, the fix bar fixed setting In on the transmission cage；The magnet carrier includes carrier body and the second magnet；The dedusting scraper include scraper body and First magnet；The dedusting scraper is positioned in the flue connecting cylinder and the length of the scraper body is more than or equal to the cigarette Length on road connecting cylinder axial direction；When being driven cage rolling, the magnet carrier drives the dedusting scraper to do the cigarette Circular motion in road connecting cylinder.
2. 2. the rotary type flue-pipe dust-controlling apparatus according to claim 1 based on magnetic traction, it is characterised in that：The magnet carries Tool further comprises the second cylinder fixed block；The cross section of the carrier body is in H shapes；Second magnet is fixedly installed on institute State on carrier body, second magnet is set close to flue connection drum outer wall；The carrier body connects with the flue The second cylinder fixed block is respectively inlaid with the relative upper surface corner of connect cylinder outer wall.
3. 3. the rotary type flue-pipe dust-controlling apparatus according to claim 2 based on magnetic traction, it is characterised in that：The dedusting is scraped Knife further comprises the first cylinder fixed block；The dedusting scraper is in integrally isosceles trapezoid；It is horizontal that one is provided with the scraper body Groove；The translot is used to first magnet and the first cylinder fixed block be fixedly installed.
4. 4. the rotary type flue-pipe dust-controlling apparatus according to claim 3 based on magnetic traction, it is characterised in that：First magnetic Iron and second magnet face setting；The quantity of the first cylinder fixed block is two and is respectively arranged at first magnetic Iron both sides；The first cylinder fixed block both sides are respectively arranged with fixed plate.
5. 5. the rotary type flue-pipe dust-controlling apparatus according to claim 1 based on magnetic traction, it is characterised in that：The transmission cage Including two annular gear wheels and some steel pipes being fixed between the annular gear wheel；The transmission cage passes through on the chassis Fixed column fix.
6. 6. the rotary type flue-pipe dust-controlling apparatus according to claim 5 based on magnetic traction, it is characterised in that：The ring tooth Slide guide part is further provided between wheel and the flue connecting cylinder；The slide guide part includes being fixed on outside the flue connecting cylinder The fixed seat of wall and rolling are connected to the slide guide wheel in the fixed seat；The slide guide wheel offsets with the annular gear wheel inwall Connect.
7. 7. the rotary type flue-pipe dust-controlling apparatus according to claim 5 based on magnetic traction, it is characterised in that：The driving cog Wheel group includes active travelling gear, connecting rod and the first driven gear being fixed in the connecting rod, the second driven gear, the Three driven gears；The active travelling gear is connected with the motor；First driven gear passes with the active Moving gear is meshed；Second driven gear and the 3rd driven gear are meshed with the annular gear wheel respectively；The connection Bar is fixed in the fixed column.