CN213700250U

CN213700250U - Dust removal system for rotary drum bale breaker

Info

Publication number: CN213700250U
Application number: CN202022353141.5U
Authority: CN
Inventors: 刘建坡; 刘建涛; 王成宪
Original assignee: Zhengzhou Leizhan Technology Paper Machinery Co Ltd
Current assignee: Zhengzhou Leizhan Technology Paper Machinery Co Ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2021-07-16
Anticipated expiration: 2030-10-21

Abstract

The utility model discloses a dust pelletizing system for rotary drum bale breaker, including rotary drum bale breaker, the barrel sets up feeding guard shield and ejection of compact guard shield at feed end and discharge end respectively, the feeding guard shield is connected to the feeding sealed cowling that extends to the feeding conveyer, the feeding sealed cowling is arranged along the feeding conveyer and is covered above it, and the feeding sealed cowling has at least two sealed hanging curtains at the discharge end department interval arrangement that is close to the feeding conveyer; the discharging protective cover is connected with a discharging sealing cover extending to the discharging conveyor, the discharging sealing cover is arranged along the discharging conveyor and covered above the discharging conveyor, and at least two sealing hanging curtains are arranged at the position, close to the discharging end of the discharging conveyor, of the discharging sealing cover at intervals. The utility model discloses increased the sealed area of guard shield, the sealed drape of at least twice that increases simultaneously has blocked the excessive of dust effectively, makes the convulsions volume of fan be far greater than the excessive volume of dust, makes the air circumstance at scene obtain thorough improvement.

Description

Dust removal system for rotary drum bale breaker

Technical Field

The utility model relates to a papermaking equipment technical field, concretely relates to a dust pelletizing system for rotary drum bale breaking machine.

Background

In recent years, with the rapid development of our country's economy, the demand of various domestic industries on paper products is increasing, and among them, recycled waste paper pulping is one of the important raw materials for paper product production. For the convenience of transportation, the waste paper is generally bundled and packed by a packing machine after being recycled, and the packed waste paper must be dispersed for the treatment of a pulper before being sent to a paper mill for pulping and pulping. The first bale breaking method is that the forklift is lifted and then the bale breaking machine is thrown, and then the drum bale breaking machine is developed according to the principle of a drum pulper.

The principle of the rotary drum bale breaker is that the packed waste paper is conveyed into a continuously rotating horizontal rotary drum, and the waste paper bags are continuously lifted and dropped and move towards a discharge port by utilizing structures such as a vertical cone, a spiral piece and the like welded on the inner wall of the rotary drum. In this process, the bundled waste paper bales are separated.

The bale breaker is simple in structure, but in order to ensure that the waste paper bags can be completely scattered, the diameter of the rotary drum is required to be large enough, the length of the rotary drum is required to be long enough, and the waste paper bags can be lifted to the required height, so that the bale breaker occupies a large area and is long in bale breaking time. Meanwhile, the rotating cylinder rotates ceaselessly, so that the bale breaking machine cannot be completely sealed, and a large amount of dust generated during bale breaking is easy to spread over a production field.

The invention of publication number CN106215580A relates to a dust suction device of a bale breaker. It includes the dust cover, and the bale breaking machine main part is located the dust cover, is provided with the waste paper export on the dust cover, and the one end that the dust cover set up the waste paper export still is provided with the ventilation pipe, dust cover and ventilation pipe sealing connection, and the one end that the ventilation pipe links to each other with the dust cover is provided with updraft ventilator, be provided with the spray set who is used for mixing dust and water in the ventilation pipe, the ventilation pipe other end is connected with the dust collecting vat, and the dust collecting vat. The dust cover is arranged on the inner side of the bag scattering machine main body, and the dust generated in the bag scattering process of the bag scattering machine main body can not escape from the dust cover. The ventilation pipe other end is provided with spray set simultaneously, and this spray set spun water can be with the dust gathering, and the dust can fall into the dust collecting vat along with water in, and the dust collecting vat is connected with the delivery pump, and the delivery pump can be outside the log bin with the log raft play of dust.

According to the technical scheme, the dust collection structure is arranged on the basis of the rotary-drum bale breaking machine, the bale breaking machine main body is required to be completely arranged in the dust cover, the cost is high, and the occupied space is large.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the weak point among the prior art, provide a dust pelletizing system for rotary drum bale breaking machine.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the dust removal system for the rotary drum bale breaker comprises a rotary drum bale breaker, wherein a drum body of the rotary drum bale breaker is horizontally arranged and rotates under the action of a driving mechanism, a feeding end and a discharging end of the drum body are respectively connected with a feeding conveyor and a discharging conveyor, the feeding end and the discharging end of the drum body are respectively provided with a feeding shield and a discharging shield, the feeding shield is connected with a feeding sealing cover extending towards the feeding conveyor, the feeding sealing cover is arranged along the feeding conveyor and covers the feeding conveyor, and at least two sealing hanging curtains are arranged at the position, close to the discharging end of the feeding conveyor, of the feeding sealing cover at intervals;

the discharging protective cover is connected with a discharging sealing cover extending to the discharging conveyor, the discharging sealing cover is arranged along the discharging conveyor and covers the discharging conveyor, and at least two sealing hanging curtains are arranged at the discharging end of the discharging sealing cover close to the discharging conveyor at intervals;

all be equipped with the dust removal takeover on feeding sealed cowling, ejection of compact guard shield and the ejection of compact sealed cowling, the dust removal takeover is connected the dust remover.

And the dust removal connecting pipe is matched with a dust removal fan.

The feeding sealing cover extends to cover the half length of the feeding conveyor, and the discharging sealing cover extends to cover the whole length of the discharging conveyor.

And the dust removal connecting pipe on the discharging sealing cover is arranged close to the discharging end of the discharging conveyor.

The dust removal connecting pipe on the feeding sealing cover is arranged close to the feeding end of the feeding conveyor.

The dust remover comprises an air inlet pipe, a diffusion pipe and a dust removing main pipe, wherein one section of the air inlet pipe is connected with the dust removing connecting pipe, and the other end of the air inlet pipe is connected with the diffusion pipe;

the diffusion pipe and the dust removal main pipe are vertically arranged, one part of the diffusion pipe extends into the dust removal main pipe from the upper end, a plurality of uniformly distributed through holes are formed in the pipe wall of the diffusion pipe extending into the dust removal main pipe, a conical cover is fixed at the upper end of the diffusion pipe in a sealing mode, and a gap is reserved between the conical cover and the inner wall of the dust removal main pipe;

partition plates are sequentially arranged above the diffusion pipes in the dust removal main pipe from bottom to top, a certain included angle is formed between each partition plate and the horizontal plane, and the inclination angles of the adjacent partition plates are symmetrical; the partition plates divide the dust removal main pipe into a plurality of cavities, and the distance between every two adjacent partition plates is gradually increased from bottom to top, so that the space of each cavity is also gradually increased;

a through hole is formed in the middle of each partition plate, a nozzle is arranged on the higher side of the through hole in the middle of each partition plate, and water mist sprayed out of the nozzle can cover the through hole; and a water dripping hole is also formed in the lower side of each partition plate, and the dripped spray water falls down step by step along the water dripping hole and is finally discharged through a water discharging hole formed in the bottom of the dust removal main pipe.

The angle between the baffle plate and the horizontal plane is 20-30 degrees.

The main dedusting pipe is kept to be vertically arranged through a support frame.

An exhaust pipe is arranged at the top end of the dust removal main pipe.

The utility model has the advantages that:

1. the utility model discloses increased the sealed area of guard shield, the at least twice sealed hanging curtain that increases simultaneously has blocked the excessive of dust effectively, makes the convulsions volume of fan be greater than the excessive volume of dust, forms the negative pressure zone in the entry and exit department of guard shield, except the dust that overflows in the air that makes the suction fan, can also be forced to inhale certain clean air to the air circumstance that makes the scene has obtained thorough improvement.

2. The utility model discloses an optimize the structure of dust remover, make the velocity of flow of waste gas progressively reduce, the spray water also can detach the dust in the waste gas under the condition of low discharge. Meanwhile, the noise pollution can be greatly reduced due to the lower exhaust speed.

Drawings

FIG. 1 is a schematic diagram of a dust removal system for a rotary drum bale breaker in an embodiment of the present invention;

FIG. 2 is a schematic view of a dust collector in an embodiment of the present invention;

FIG. 3 is a schematic view of a diffuser portion of a precipitator in an embodiment of the present invention;

fig. 4 is a schematic plan view of a partition plate of a dust collector in an embodiment of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in fig. 1 to 4, the present embodiment discloses a dust removing system for a rotating drum type bale breaker, which includes a rotating drum type bale breaker, wherein a drum body 51 of the rotating drum type bale breaker is horizontally arranged and rotated by a driving mechanism, a feeding end and a discharging end of the drum body 51 are respectively connected to a feeding conveyor 52 and a discharging conveyor 53, and the drum body 51 is provided with a feeding shield 54 and a discharging shield 55 at the feeding end and the discharging end.

The feeding shroud 54 is connected to a feeding seal hood 56 that extends toward the feeding conveyor 52, the feeding seal hood 56 is disposed along and over the feeding conveyor 52, and two sealing curtains 58 are spaced apart from the feeding seal hood 56 near the discharge end of the feeding conveyor. The function of the sealing hanging curtain is to block the dust from overflowing as much as possible.

The discharging protective cover 55 is connected with a discharging sealing cover 57 extending to the discharging conveyor 53, the discharging sealing cover 57 is arranged along and covered above the discharging conveyor 53, and two sealing hanging curtains 59 are arranged at intervals at the discharging end of the discharging sealing cover 57 close to the discharging conveyor 53. The function of the sealing hanging curtain is to block the dust from overflowing as much as possible.

In this embodiment, the infeed seal shroud 56 extends over half the length of the infeed conveyor 52 and the outfeed seal shroud 57 extends over the entire length of the outfeed conveyor 53.

The feeding sealing cover 56, the discharging protective cover 55 and the discharging sealing cover 57 are all provided with a dust removal connecting pipe 50, and the dust removal connecting pipe 50 is connected with a dust remover 60. The dust removal connecting pipes are matched with dust removal fans.

In this embodiment, the dust-removing connecting pipe on the discharging sealing cover 57 is disposed near the discharging end of the discharging conveyor 53. A dust extraction nipple on the feed seal hood 56 is located near the feed end of the feed conveyor 52.

The utility model discloses increased the sealed area of guard shield, the at least twice sealed hanging curtain that increases simultaneously has blocked the excessive of dust effectively, makes the convulsions volume of fan be greater than the excessive volume of dust, forms the negative pressure zone in the entry and exit department of guard shield, except the dust that overflows in the air that makes the suction fan, can also be forced to inhale certain clean air to the air circumstance that makes the scene has obtained thorough improvement.

In this embodiment, the dust remover 60 includes an air inlet pipe 1, a diffusion pipe 2 and a main dust removal pipe 3, wherein one end of the air inlet pipe 1 is connected with the dust removal connection pipe, and the other end of the air inlet pipe 1 is connected with the diffusion pipe 2.

The diffusion pipe 2 and the dust removal main pipe 3 are both vertically arranged, and the dust removal main pipe 3 is kept vertically arranged by a support frame 13.

The diffuser pipe 2 is stretched into to the dust removal and is responsible for 3 by upper end partly, and the diffuser pipe 2 is provided with the through-hole 11 that a plurality of was evenly arranged on stretching into the pipe wall of the dust removal and being responsible for 3 inside, and the upper end of diffuser pipe is sealed to be fixed with awl lid 12, and the diameter of awl lid 12 is greater than the diffuser pipe 2 and is less than the dust removal and is responsible for 3, makes and leaves the clearance between the inner wall of awl lid 12 and dust removal and be responsible for 3.

The partition plates 8 are sequentially arranged above the diffusion pipes 2 in the dust removal main pipe 3 from bottom to top, and a certain included angle is formed between each partition plate 8 and the horizontal plane, and the angle is preferably 20-30 degrees. And the inclination angles of the adjacent partition plates 8 are mutually symmetrical; the clapboard 8 divides the main dedusting pipe into a plurality of cavities; the distance between the adjacent partition plates 8 is gradually increased from bottom to top, so that the space of each cavity is also gradually increased.

A through hole 4 is formed in the middle of each partition plate 8, a nozzle 7 is arranged on the higher side of the through hole 4 in the middle of each partition plate 8, and water mist sprayed out of the nozzle 7 can cover the through hole 4; a water dripping hole 8 is further formed in the lower side of each partition plate 8, and the dripping spray water falls step by step along the water dripping holes 5 and is finally discharged through a water discharging hole 9 formed in the bottom of the dust removing main pipe.

The utility model discloses start from the wet dedusting principle, the water smoke that forms through the shower water promptly adsorbs the dust particle that is mingled with in with waste gas together, gets rid of it through hydrologic cycle to the exhaust-gas discharge after will removing dust. The reason why the conventional wet dust removing apparatus needs a large amount of spray water is that the velocity of the exhaust gas entering the dust remover is very high (about 30-60 m/s), and if the flow rate of the spray water is too small, the spray water is blown away by the exhaust gas, and the dust removal cannot be realized. Therefore, to reduce the amount of spray books, the flow rate of the exhaust gas must be reduced, so that less spray water can be used to achieve the same dust removal effect. The specific working process is as follows:

as shown in figure 2, the waste gas mixed with dust enters the diffusion tube 2 through the air inlet tube 1, a plurality of through holes 11 uniformly distributed are formed in the tube wall 10 of the diffusion tube 2, and the speed of the waste gas is greatly reduced when the waste gas enters the through holes 11. At the top of the diffuser pipe 2 is a cone cover 12, and the exhaust gas must follow the gap between the cone cover 12 and the housing 3 to continue moving upward.

The waste gas can collide with the partition plate 8, the partition plate 8 and the horizontal plane form a certain included angle, and the through hole 4 is arranged in the middle of the partition plate 8. A plurality of partition plates 8 are arranged in the shell 3, the distance between the partition plates is gradually increased from the bottom to the top, and the inclination angles of the adjacent partition plates 8 are mutually symmetrical. The partition plates 8 divide the housing 3 into a plurality of chambers, and the space of the chambers is gradually enlarged.

When the waste gas enters the cavity, the flow direction of the waste gas is deflected due to the inclination of the partition plate 8, and a part of the waste gas enters the next cavity along the through hole 4 of the next partition plate 8; a part of the deflection occurs in the direction in which the bottom partition 8 is inclined. After passing through the several chambers, the exhaust gases are finally discharged through an exhaust pipe 6 arranged at the top of the housing 3.

The space of the cavity is gradually increased, so that the flow speed of the waste gas is gradually reduced, and through calculation of fluid simulation software, when the flow speed at the air inlet 1 is about 30m/s, the flow speed is reduced to 14-20m/s after passing through the diffusion pipe 2, then after passing through the plurality of partition plates 8, the speed of the waste gas passing through the through holes 4 is only about 7-12m/s, and finally the speed of the waste gas discharged through the exhaust pipe 6 is only 7-10 m/s.

Meanwhile, in order to remove dust in the exhaust gas, a nozzle 7 is arranged at the higher side of the through hole 4 in the middle of each partition plate 8, and the sprayed water mist can cover the through hole 4, so that the flow speed of the exhaust gas is further reduced. As shown in fig. 4, a water dripping hole 5 is further formed at a lower side of the partition plate 8, and the dripping shower water gradually falls along the water dripping hole 5 and is finally discharged through the water discharge hole 9.

As shown in fig. 3, the main structure of the diffuser pipe 2 is shown: the pipe wall 10 of the diffuser pipe 2 is partly outside the housing 3 and partly extends into the housing 3. A plurality of through holes 11 which are uniformly distributed are arranged on the pipe wall extending into the shell 3, and the diameter of each through hole 11 is not small enough. At the top of the tube wall 10 is a conical cap 12.

When the exhaust gas enters the inside of the diffuser pipe 2 through the gas inlet 1, the flow itself is relatively smooth. When entering the inside of the housing 3, a large amount of gas enters the inside of the housing 3 through the through holes 11, and since the space of the housing 3 is much larger than the inner space of the tube wall 10, the flow rate of the exhaust gas rapidly decreases. The exhaust gas discharged first forms a low-speed turbulent flow region 14 in the housing 3, and the flow rate of the exhaust gas discharged subsequently is further reduced by the influence of the low-speed turbulent flow region 14 and the cone cover 12.

The dust remover is based on a wet dust removal principle, the flow velocity of waste gas is gradually reduced (can reach 7-10 m/s) by optimizing the structure of the dust remover, and dust in the waste gas can be removed by spray water under the condition of small flow. Meanwhile, the noise pollution can be greatly reduced due to the lower exhaust speed.

The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.

In the description of the present invention, it should be understood that the terms "front", "back", "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the description refers must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

Claims

1. A dust pelletizing system for rotary drum bale breaker, including rotary drum bale breaker, the barrel of rotary drum bale breaker is horizontal arranges and rotates under actuating mechanism's effect, and the feed end and the discharge end of barrel connect respectively feeding conveyer and discharge conveyor, and the barrel sets up feeding guard shield and ejection of compact guard shield, its characterized in that respectively at feed end and discharge end: the feeding protective cover is connected with a feeding sealing cover extending to the feeding conveyor, the feeding sealing cover is arranged along the feeding conveyor and covers the feeding conveyor, and at least two sealing hanging curtains are arranged at intervals at the position, close to the discharging end of the feeding conveyor, of the feeding sealing cover;

2. The dusting system for drum bale breaking machines of claim 1, characterized in that: and the dust removal connecting pipe is matched with a dust removal fan.

3. The dusting system for drum bale breaking machines of claim 1, characterized in that: the feeding sealing cover extends to cover the half length of the feeding conveyor, and the discharging sealing cover extends to cover the whole length of the discharging conveyor.

4. The dusting system for drum bale breaking machines of claim 1, characterized in that: and the dust removal connecting pipe on the discharging sealing cover is arranged close to the discharging end of the discharging conveyor.

5. The dusting system for drum bale breaking machines of claim 1, characterized in that: the dust removal connecting pipe on the feeding sealing cover is arranged close to the feeding end of the feeding conveyor.

6. The dusting system for drum bale breaking machines according to any of claims 1-5, characterized in that: the dust remover comprises an air inlet pipe, a diffusion pipe and a dust removing main pipe, wherein one section of the air inlet pipe is connected with the dust removing connecting pipe, and the other end of the air inlet pipe is connected with the diffusion pipe;

7. The dusting system for drum bale breaking machines of claim 6, characterized in that: the angle between the baffle plate and the horizontal plane is 20-30 degrees.

8. The dusting system for drum bale breaking machines of claim 6, characterized in that: the main dedusting pipe is kept to be vertically arranged through a support frame.

9. The dusting system for drum bale breaking machines of claim 6, characterized in that: an exhaust pipe is arranged at the top end of the dust removal main pipe.