CN215595692U - Cleaning device of particle catcher - Google Patents

Abstract

The utility model relates to the field of diesel engine emission post-treatment, and discloses a cleaning device of a particle catcher, which comprises: the cleaning device comprises a cleaning bin and a dust collecting bin, wherein a fixed seat, a first nozzle and a moving mechanism are arranged in the cleaning bin, the fixed seat is used for fixing a particle catcher, the first nozzle is connected with a compressed air source to clean the particle catcher, the moving mechanism can drive the nozzle and the fixed seat to move relatively, so that the nozzle and the dust cleaning end of the particle catcher move relatively to finish cleaning action, and the cleaning bin is also provided with an exhaust hole; a first dust collection box is arranged in the dust collection bin, the first dust collection box is communicated with the dust discharge end of the particle catcher to collect particles discharged by the particle catcher, a filtering device for preventing the particles from being hardened is also arranged in the dust collection bin, and the filtering device is communicated with the exhaust hole; the dust collector also comprises a fan, and the fan is communicated with the dust collecting bin to extract gas in the dust collecting bin. The utility model can clean particles such as dust and the like in the cleaning bin, reduces secondary pollution to the particle catcher and has good cleaning effect.

Description

Cleaning device of particle catcher

Technical Field

The utility model relates to the field of diesel engine emission post-treatment, in particular to a cleaning device of a particle catcher.

Background

Fuel combustion leaves a large amount of harmful residues, and the current six-state emission standards of diesel engines are more stringent for PM (particulate matter) limits. The particle catcher can capture particles through a filtering device with surface and internal mixing, can purify 70% -90% of particles in exhaust gas, and is one of the most effective and direct methods for purifying diesel engine particles.

Although the particulate trap can filter most of the particulates during use, particulates can accumulate in the filter during operation of the filter, resulting in increased exhaust backpressure from the diesel engine, when the pressure of the exhaust gas exceeds a certain value, the operation of the diesel engine starts to be obviously deteriorated, the performances of the engine such as dynamic property, economical efficiency and the like are reduced, the deposited particles must be removed in time, the filter is recovered to the original working state, namely regeneration, in the regeneration process of the particle catcher, only the carbon deposit in the particle catcher is reduced, but ash substances which are not carbon deposit can not be reduced and decomposed at all, the ash is mainly derived from components in engine oil and fuel oil, and because the ash cannot be combusted, the ash is attached to block the particle catcher after long-term accumulation, and a series of maintenance such as periodic ash removal and the like are required to restore partial performance of the particle catcher.

The cleaning process of particle catcher can adopt compressed air to sweep the technique many times, and high-pressure gas blows off particulate matters such as ash content from particle catcher, and most are collected by the collection device in the dust collection bin, but still have particulate matters such as partial ash content to fill in the cleaning bin, possible secondary pollution particle catcher on the one hand, on the other hand also can cause complete machine laying dust clearance trouble. When the gas with the particulate matters in the cleaning bin is cleaned, the problems of cleaning effect and cleaning efficiency are also considered.

SUMMERY OF THE UTILITY MODEL

In order to solve one or more technical problems in the prior art or at least provide a beneficial choice, the utility model provides a cleaning device of a particle catcher, which can clean particles such as dust and the like in a cleaning bin, reduce secondary pollution to the particle catcher and achieve a good cleaning effect.

The utility model discloses a cleaning device of a particle catcher, which comprises: a cleaning bin and a dust collecting bin,

the cleaning bin is internally provided with a fixed seat, a first nozzle and a moving mechanism, the fixed seat is used for fixing the particle catcher, the first nozzle is connected with a compressed air source to clean the particle catcher, the moving mechanism can drive the nozzle and the fixed seat to move relatively so as to enable the nozzle and the ash removal end of the particle catcher to move relatively to complete the cleaning action, and the cleaning bin is also provided with an exhaust hole;

a first dust collection box is arranged in the dust collection bin, the first dust collection box is communicated with the dust discharge end of the particle catcher to collect particles discharged by the particle catcher, a filtering device for preventing the particles from being hardened is also arranged in the dust collection bin, and the filtering device is communicated with the exhaust hole;

the dust collector also comprises a fan, and the fan is communicated with the dust collecting bin to extract gas in the dust collecting bin.

In a preferred implementation mode, a second nozzle for purging the filtering device is further arranged in the dust collection bin, and the second nozzle is connected with a compressed air source.

In a preferred implementation, the second nozzle intermittently purges the filtration device.

In a preferred realization, the filtering means comprise a filter bag communicating with the air outlet, the filter bag being provided with filtering holes for the air to be blown out.

In a preferred implementation mode, the filtering device further comprises a filtering net for adsorbing particulate matters, and the filtering net is sleeved outside the filtering net.

In a preferred implementation, the filter device further comprises a second dust collection box, and the filter bag is communicated with the exhaust hole and the second dust collection box.

In a preferred implementation, the first dust bin and the second dust bin are drawer-type bins.

In a preferred implementation mode, the first dust collection box and the second dust collection box are provided with perspective windows so as to observe the deposition state of the particulate matters in the boxes.

In a preferred implementation mode, a connecting bag is further arranged in the dust collecting bin, and the connecting bag is communicated with the dust discharging end of the particle catcher and the first dust collecting box.

In a preferred implementation mode, the moving mechanism comprises a rotating mechanism and a horizontal moving mechanism, the rotating mechanism can drive the fixed seat to do rotating motion, and the horizontal moving mechanism can drive the nozzle to do radial reciprocating motion relative to the dust removing end of the particle catcher.

Due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. according to the utility model, the honeycomb-shaped gap in the particle catcher is cleaned in a manner that the ash cleaning end of the particle catcher is swept by compressed gas, and particulate matters such as ash and the like are blown out from the ash discharging end of the particle catcher, so that the particle catcher is convenient to clean. Under the drive of the moving mechanism, the nozzle can move relative to the fixed seat, so that the cleaning area of the nozzle can cover the ash cleaning end of the whole particle catcher, and the first dust collecting box in the dust collecting bin collects the particulate matters and performs uniform dumping treatment. In order to solve the problem that the cleaning bin is diffused with particles such as ash and the like to cause secondary pollution of the particle catcher, a fan (usually a negative pressure fan) pumps out air in the dust collection bin, so that the air pressure in the dust collection bin is instantaneously lower than that in the cleaning bin, the cleaning bin is provided with an exhaust hole, the air with the particles such as the ash and the like enters the dust collection bin through the exhaust hole, a filtering device communicated with the exhaust hole is arranged in the dust collection bin, part of the particles are filtered by the filtering device and deposited in the filtering device, and then the particles enter the dust collection bin to be pumped out of the box by the fan, so that the amount of the particles in the dust collection bin is reduced, dust accumulation in the dust collection bin is avoided, and the cleaning difficulty is high. The gas that the fan extracted is cleaner gas, can not cause the fan to deposit dirt and burn out. The particulate matter is difficult for hardening on filter equipment's adhesion surface, can not block up filter equipment, and it is efficient to bleed, and the cleaning performance is good. The filter device is arranged in the dust collection bin, so that the space can be saved, and the volume of the cleaning device is reduced.

2. The second nozzle is arranged in the dust collection bin to blow the filter device, so that dust in the filter device is prevented from depositing and hardening and blocking filter holes of the filter device. Therefore, the dust on the filter device can be removed by purging the filter device through the second nozzle. Furthermore, the intermittent blowing and filtering device can save air quantity and avoid dust return to a certain extent.

3. The filtering device comprises a filter bag communicated with the exhaust hole, wherein partial particulate matters in the gas are separated under the action of inertia force and fall into the bag bottom of the filter bag or a connected dust collection box, partial particulate matters are collected on the surface of the bag body, and the purified gas is discharged through the filtering hole and is extracted out of the box body by a fan.

4. The filter device also comprises the filter screen, the filter bag has larger pores and poor cleaning effect, smaller particles can be filtered by adding the filter screen, two-stage filtration is formed, and the filter effect is better. The filter bag is sleeved outside the filter screen, and the filter screen can support a bag body of the filter bag.

5. The first dust collection box and the second dust collection box are also provided with the perspective windows, so that the accumulation amount of particulate matters in the dust collection boxes can be observed, dust in the dust collection boxes can be poured conveniently in time, and the particulate matters are prevented from flowing back to enter the cleaning bin to secondarily pollute the particle catcher.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an external view of a cleaning device for a particle trap in accordance with an embodiment of the present invention;

FIG. 2 is a first schematic structural diagram of a cleaning apparatus for a particle catcher according to an embodiment of the present invention;

FIG. 3 is a second schematic structural diagram of a cleaning device of a particle catcher according to an embodiment of the present invention.

Description of reference numerals:

1. a box body; 11. a door; 12. a roller;

2. cleaning the bin; 21. a fixed seat; 211. a clamping member; 22. a first nozzle; 23. a moving mechanism; 231. a horizontal movement mechanism; 232. a vertical moving mechanism; 24. an exhaust hole; 25. compressing a gas source;

3. a dust collection bin; 31. a first dust collecting box; 32. a connecting bag; 33. a filtration device; 331. a filter bag; 332. a filter screen; 34. a second dust collecting box; 35. a second nozzle; 36. a fan;

4. a particle trap; 41. a dust removal end; 42 discharge ash end.

Detailed Description

In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.

It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected to each other by the intermediate structure but connected to each other by the connecting structure to form a whole. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The specific scheme is as follows:

as shown in the figures, the cleaning device of the particle catcher 4 disclosed by the utility model specifically adopts the following scheme:

as shown in fig. 1-2, the cleaning device for a particle catcher 4 disclosed by the utility model comprises a box body 1, wherein the front part of the box body 1 is provided with a door 11 which can be opened and closed, the door 11 is provided with a visual window for observing the cleaning state of the particle catcher 4, and the lower end of the box body 1 is provided with a roller 12, so that the whole cleaning device can be conveniently moved according to the working environment. The box 1 includes: cleaning bin 2, dust collecting bin 3 and blower 36, cleaning bin 2 is located above dust collecting bin 3.

Be equipped with fixing base 21, first nozzle 22 and moving mechanism 23 in washing storehouse 2, fixing base 21 installs in the bottom of washing storehouse 2, and fixing base 21 includes that holder 211 is used for fixed particle trap 4, and the centre gripping size of holder 211 is adjustable. In one embodiment, the fixing seat 21 is provided with a limiting clamping jaw which is suitable for clamping particle traps 4 with different models and sizes; or, the fixed seat 21 is provided with a left limiting block, a right limiting block and a guide groove along the radial direction of the particle catcher 4, and the two limiting blocks move in the guide groove in the opposite direction to clamp and fix the particle catcher 4, so that the particle catchers 4 with different models and sizes can be fixed in the same way. The first nozzle 22 is connected to a compressed air source 25 to clean the particle catcher 4. in one embodiment, the first nozzle 22 is connected to an electromagnetic pulse valve, so that particles such as ash can be separated through the oscillation action of the pulse airflow, and the particles can be completely removed easily. The particle catcher 4 to be cleaned comprises an ash removal end 41 and an ash discharge end 42, wherein the ash removal end 41 is an air outlet end, and the ash discharge end 42 is an air inlet end. After long-time use, because under the effect of air current thrust, a large amount of particulate matters gather at the gas outlet end, consequently, invert particle catcher 4 and be fixed in fixing base 21, the gas outlet end of blowback particle catcher 4 can alleviate the mediation degree of difficulty. The moving mechanism 23 is mounted on the side wall of the cleaning bin 2, and can drive the first nozzle 22 and the fixed seat 21 to perform relative movement, so that the first nozzle 22 and the ash removal end 41 of the particle catcher 4 perform relative movement, and the spray area of the first nozzle 22 can cover the ash removal end 41 of the whole particle catcher 4 to complete the cleaning action. The bottom wall of the cleaning bin 2 adjacent to the exhaust bin is also provided with an exhaust hole 24, and gas in the cleaning bin 2 is exhausted through the exhaust hole 24.

The first dust collecting box 31 is arranged in the dust collecting bin 3, the first dust collecting box 31 is communicated with the dust discharging end 42 of the particle catcher 4 to collect particles discharged by the particle catcher 4, the first dust collecting box 31 can be a cylindrical or square barrel body, or the first dust collecting box 31 is a drawer type box body 1, and the collected dust can be conveniently and directly pulled out. Still be equipped with the filter equipment 33 who avoids the particulate matter to harden in the dust collection bin 3, filter equipment 33 intercommunication exhaust hole 24 for filter the particulate matter in the gas, reduce the particulate matter volume in the dust collection bin 3, avoid the interior laying dust of dust collection bin 3, it is big to wash the degree of difficulty. Because the particulate matter is difficult for hardening on filter equipment 33's the adhesion surface, can not block up filter equipment 33, it is efficient to bleed, and the cleaning performance is good.

The fan 36 is communicated with the dust collection chamber 3, in one embodiment, the fan 36 is arranged on the side wall of the dust collection chamber 3 to extract the air in the dust collection chamber 3, the fan 36 (usually a negative pressure fan) extracts the air in the dust collection chamber 3, the air pressure in the dust collection chamber 3 is instantaneously lower than that in the cleaning chamber 2, and the air with the particles in the cleaning chamber 2 flows into the dust collection chamber 3 along the exhaust hole 24. Due to the filtering effect of the filtering device 33, the air extracted by the fan 36 is cleaner, and the fan 36 is not burned out due to dust accumulation.

It is to be understood that the Particulate trap apparatus in the present invention is not particularly limited, and is not limited to a DPF (wall-flow Diesel Particulate trap) apparatus applied to a Diesel engine, but also includes CDPF (Catalyzed Diesel Particulate Filter) and SCRF (coated SCR catalyst Particulate Filter) apparatuses, and the like.

In one embodiment, in the case of the problem that the particle catcher 4 contains water, the particle catcher 4 may be heated to remove water in the case 1, and in the case of the problem that the particle catcher 4 regenerates unburned oil, oil removing powder is added to the nozzle, and the oil removing powder is blown into the honeycomb cells of the particle catcher 4 by the blowing action of compressed air so as to be mixed with the oil, and finally carried out of the cells of the particle catcher 4 by the gas.

As shown in fig. 2, the filtering device 33 includes a filtering bag 331 connected to the exhaust hole 24, the filtering bag 331 is provided with a filtering hole for blowing out the gas, a part of the particles in the gas is separated by the inertial force and falls into the bag bottom of the filtering bag 331 or the connected dust collecting box 1, a part of the particles is collected on the surface of the bag, and the purified gas is exhausted through the filtering hole and is extracted out of the box 1 by the fan 36.

As shown in fig. 2, the filtering device 33 further includes a filter screen 332 for adsorbing particles, and the filter bag 331 is sleeved outside the filter screen 332. The filter bag 331 is large in pore and poor in cleaning effect, and small particles can be filtered by adding the filter screen, so that two-stage filtering is formed, and the filtering effect is good. The filter bag 331 is sleeved outside the filter bag 332, and the filter bag 332 can support the bag body of the filter bag 331.

As shown in FIG. 2, the filtering device 33 further includes a second dust box 34, and a filter bag 331 communicates the exhaust hole 24 and the second dust box 323. One end of the filter bag 331 is tightly bound to the air inlet end of the second dust collecting box 34, and the other end is sealed with the air outlet hole 24, so that the dust in the dust collecting bin 3 is prevented from entering the cleaning bin 2 through the gap between the two.

As shown in fig. 2, a second nozzle 35 connected to the compressed air source 25 is further disposed in the dust collecting bin 3, the second nozzle 35 is used for blowing the filter bag 331 to shake off particles in the filter bag 331, the second nozzle 35 is located above the exhaust hole 24, and the blown air flow enters the filter bag 331 along the exhaust hole 24. In order to prevent dust in the filter bag 331 from being deposited and hardened and blocking the filter holes of the filter bag 331, the air volume is significantly reduced due to too high resistance of the filter bag 331, and therefore, the dust deposited on the filter bag 331 can be removed by purging the filter bag 331 through the second nozzle 35. Furthermore, by intermittently blowing the filter bag 331, the air quantity can be saved, and the return of the dust can be avoided to a certain extent. Preferably, the second nozzle 35 is opened for a time interval T1, 10s T1 s 20s, T2 s 1s T2 s 3 s.

In one embodiment, the first dust box 31 and the second dust box 34 are drawer type boxes 1, which facilitate direct pulling out of the collected dust for cleaning.

In one embodiment, the side walls of the first dust box 31 and the second dust box 34 facing the door are provided with a first transparent window and a second transparent window (not shown) to observe the deposition state of the particles in the box for timely dumping.

As shown in FIG. 2, a connection bag 32 is further provided in the dust bin 3, and the connection bag 32 communicates the dust discharge end 42 of the particle catcher 4 with the first dust box 31. One first dust box 31 may be provided, and the outlet ends of the plurality of connection bags 32 are connected to the first dust box 31, or a plurality of first dust boxes 31 may be provided, and the outlet ends of the connection bags 32 are connected to the corresponding first dust boxes 31, respectively. The bag body of the connection bag 32 has elasticity, so that the installation is convenient, on the other hand, the air flow meets certain resistance in the connection bag 32, the air flow speed can be reduced, the dust raising is avoided, part of dust is shaken down into the first dust collection box 31 by the bag body after contacting the bag body, and the dust is easy to deposit in the first dust collection box 31. Preferably, connect bag 32 and adopt the filtration material, the bag body of connecting bag 32 can filter particulate matters such as ash, and the bag body has tiny hole to allow the circulation of air simultaneously, and partial air current is discharged in connecting bag 32 department, also can avoid the raise dust in the dust collection box.

As shown in fig. 2, the moving mechanism 23 includes a rotating mechanism and a horizontal moving mechanism 231, the rotating mechanism can drive the fixing base 21 to rotate, and the horizontal moving mechanism 231 can drive the nozzle to reciprocate radially relative to the ash removing end 41 of the particle catcher 4. Under the drive of the horizontal moving mechanism 231 and the rotating mechanism, the spraying area of the nozzle can cover the ash removing end 41 of the whole particle catcher 4, thereby completing the cleaning process. In one embodiment, the moving mechanism 23 further drives a vertical moving mechanism 232 for lifting the first nozzle 22, the vertical moving mechanism 232 drives the first nozzle 22 to an initial working position, the vertical distance between the first nozzle 22 and the ash removing end 41 of the particle catcher 4 is 8-20mm, and the horizontal moving mechanism 231 drives the first nozzle 22 to the center of the ash removing end 41 of the particle catcher 4. After the first nozzle 22 returns to the center from the center to the edge to complete a radial reciprocating motion, the fixed seat 21 drives the particle catcher 4 to rotate by a certain angle until the spraying area of the first nozzle 22 can cover the ash removal end 41 of the whole particle catcher 4, thereby completing the cleaning process.

In one embodiment, as shown in fig. 3, the cleaning apparatus of the present invention comprises a plurality of holders 21, i.e. comprises a plurality of stations for simultaneously cleaning a plurality of particle traps 4. And, correspondingly, a plurality of first nozzles 22 and a connection bag 32. The moving mechanism 23 includes a rotating mechanism for driving each of the fixing bases 21 to rotate, so that the plurality of fixing bases 21 can work independently or simultaneously; or adjacent fixing bases 21 are in transmission connection, for example, the fixing bases 21 are in a cylindrical gear shape, and the fixing bases 21 are in meshing transmission, or the fixing bases 21 are in a wheel-shaped structure, and transmission is performed between the fixing bases 21 through a transmission belt. The rotating mechanism can drive the fixed seat 21 to drive the adjacent fixed seat 21 to rotate. When a plurality of particle traps 4 need to be cleaned simultaneously, only one set of driving equipment is needed to drive one fixing seat 21, and the fixing seat 21 drives the adjacent fixing seats 21 to complete rotary motion, so that the device is simple and compact in structure.

The technical solutions protected by the present invention are not limited to the above embodiments, and it should be noted that the combination of the technical solution of any one embodiment and the technical solution of one or more other embodiments is within the protection scope of the present invention. Although the utility model has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the utility model. Accordingly, such modifications and improvements are intended to be within the scope of the utility model as claimed.

Claims (10)

1. A cleaning device for a particle trap, comprising: a cleaning bin and a dust collecting bin,

the cleaning bin is internally provided with a fixed seat, a first nozzle and a moving mechanism, the fixed seat is used for fixing the particle catcher, the first nozzle is connected with a compressed air source to clean the particle catcher, the moving mechanism can drive the nozzle and the fixed seat to move relatively, so that the nozzle and the ash removing end of the particle catcher move relatively to finish the cleaning action, and the cleaning bin is also provided with an exhaust hole;

a first dust collection box is arranged in the dust collection bin, the first dust collection box is communicated with the dust discharge end of the particle catcher to collect particles discharged by the particle catcher, a filtering device for avoiding the particles from being hardened is also arranged in the dust collection bin, and the filtering device is communicated with the exhaust hole;

the dust collecting device also comprises a fan, and the fan is communicated with the dust collecting bin to extract gas in the dust collecting bin.

2. The cleaning device for a particle trap according to claim 1,

and a second nozzle for purging the filtering device is further arranged in the dust collection bin, and the second nozzle is connected with a compressed air source.

3. The cleaning device for a particle trap according to claim 2,

the second nozzle intermittently purges the filter device.

4. The cleaning device for a particle trap according to claim 1,

the filtering device comprises a filtering bag communicated with the exhaust hole, and the filtering bag is provided with a filtering hole for blowing out gas.

5. The cleaning device for a particle trap according to claim 4,

the filter device further comprises a filter screen for adsorbing particles, and the filter screen is sleeved outside the filter screen.

6. The cleaning device for a particle trap according to claim 4,

the filter device also comprises a second dust collection box, and the filter bag is communicated with the exhaust hole and the second dust collection box.

7. The cleaning device for a particle trap according to claim 6,

the first dust collection box and the second dust collection box are drawer type box bodies.

8. The cleaning device for a particle trap according to claim 4,

the first dust collection box and the second dust collection box are provided with perspective windows so as to observe the deposition state of particles in the boxes.

9. The cleaning device for a particle trap according to claim 1,

the dust collecting bin is also internally provided with a connecting bag which is communicated with the dust discharging end of the particle catcher and the first dust collecting box.

10. The cleaning device for a particle trap according to claim 1,

the moving mechanism comprises a rotating mechanism and a horizontal moving mechanism, the rotating mechanism can drive the fixed seat to do rotating motion, and the horizontal moving mechanism can drive the nozzle to do radial reciprocating motion relative to the dust cleaning end of the particle catcher.

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