KR20180137183A - Device for cleaning selective catalytic reduction - Google Patents

Abstract

The present invention provides an apparatus to regenerate and clean a selective catalyst reduction (SCR) of a vehicle, capable of cleaning SCRs of various shapes having an arbitrary shape. According to the present invention, the apparatus to regenerate and clean an SCR of a vehicle comprises: a heating unit to heat the SCR; a cleaning unit to remove soot particles from the SCR; and a dust collection unit connected to the cleaning unit to collect the soot particles. The cleaning unit comprises: a main body having a closed inner space; a blasting unit disposed in the main body to inject compressed air to the heated SCR; a nozzle unit disposed in the main body to remove the soot particles remaining in the SCR passing through the blasting unit; a moving unit to move a base plate having the SCR put thereon in the main body in accordance with a process; and a variable support unit installed in the base plate to hold and support the SCR, and changing a support position and height in accordance with the shape of the SCR.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a cleaning device for a vehicle,

A cleaning device for regenerating a selective reduction catalyst reduction device (SCR) for a vehicle is disclosed.

Generally, the exhaust gas aftertreatment system for vehicles utilizes devices such as DOC, DPF, SCR, and AOC to reduce environmental pollutants contained in the exhaust gas.

For example, selective catalytic reduction (SCR) selectively removes nitrogen oxides (NOx) in the exhaust gas. SCR reduces NOx in a way that ammonia reacts with NOx in the exhaust gas to reduce it to N ₂ .

Ammonia Oxidation Catalyst (AOC) is a device that oxidizes ammonia (NH ₃ ). When the reducing agent is supplied excessively for ensuring high filter efficiency, ammonia does not participate in the reaction and is directly discharged to the atmosphere. AOC oxidizes ammonia to prevent this problem.

In recent years, since nitrogen oxides by light vehicles have a large portion of road transportation pollution sources, it is necessary to install a nitrogen oxides reduction device (SCR). Therefore, it is required to develop a cleaning technique for SCR of a vehicle which is rapidly increasing.

The SCR has a structure in which the inner filter is press-fitted into the case of the jacket, and unlike the DPF, it is impossible to separate and clean the filter inside the case. Therefore, there is a problem that it is difficult to effectively clean the SCR manufactured in various forms according to the type of the vehicle through the conventional cleaning device for the filter of the DPF shaped in the cylindrical shape.

The present invention provides a cleaning device for regenerating a soot removal device for a vehicle that can clean the SCR more simply and effectively.

Provided is a cleaning device for regenerating a vehicle exhaust gas purifying apparatus capable of cleaning various types of SCRs having arbitrary shapes.

Provided is a cleaning device for regeneration of a soot reduction device for a vehicle, which can perform cleaning while preventing damage to the catalyst through more precise temperature control and chemical stability.

The present invention provides a cleaning device for regenerating a vehicle soot reducing device that can minimize secondary environmental pollution during the cleaning process.

The cleaning apparatus of this embodiment may include a heating unit for heating the SCR, a cleaning unit for removing the soot particles to the SCR, and a dust collecting unit connected to the cleaning unit for dust collection of the soot particles removed from the SCR.

The cleaning unit includes a main body having a closed inner space, a blasting unit provided in the main body for spraying compressed air to the heated SCR, a nozzle ring unit disposed in the main body to remove soot particles remaining in the SCR through the blasting unit, A moving part for moving the base plate on which the SCR is placed in the main body according to the process, and a variable supporting part which is installed on the base plate and supports the SCR and changes the supporting position and height according to the shape of the SCR.

The dust collecting unit includes a suction line connected to the lower end of the main body, a suction fan connected to the suction line to provide a suction pressure, a cyclone installed on the suction line for separately collecting and collecting the soot particles, A bag filter arranged to separate and collect the soot particles, and a processing unit connected to the cyclone and the bag filter to treat the collected soot particles.

The processing unit includes a transfer tube connected to a lower end of the cyclone and the bag filter to transfer the collected soot particles, a transfer screw installed in the transfer tube for transferring the soot particles, a transfer screw provided at the tip of the transfer tube, A conveying motor for rotating the conveying screw, a rising tube connected to the conveying tube for moving the soot particles discharged from the conveying tube upward, a conveying screw installed in the rising tube for moving the soot particles, And a discharge port communicating with the upper end of the uprising pipe to discharge the soot particles.

The blasting unit is connected to the upper part of the main body to inject compressed air into the SCR, a blasting tank connected to the spraying box through a high pressure hose to supply compressed air, and a diaphragm valve controlling the discharge of compressed air in the blasting tank .

The blasting unit may further include an auxiliary diaphragm valve installed in the blast tank to control the discharge of compressed air, a high pressure hose connected to the auxiliary diaphragm valve, and an adapter installed in the high pressure hose to connect the SCR to the high pressure hose.

The nozzle ring portion being disposed toward the SCR from the upper portion of the main body and injecting air; a position shifting portion for moving the injection tube toward the center from the outside of the SCR; a rotation portion for rotating the SCR placed on the base plate; . ≪ / RTI >

Wherein the position shifting unit comprises a feed screw shaft horizontally disposed on the upper portion of the SCR and extending from the outside of the SCR to the center direction, a moving block installed on the feed screw shaft and moved along the feed screw axis, And a forward / reverse motor connected to the feed screw shaft to rotate the feed screw shaft.

The rotation unit includes a rotary ring rotatably installed on a base plate and having an SCR mounted thereon, a stationary gear installed along an outer circumferential surface of the rotary ring, a fixed gear installed on an inner surface of the rotary unit, A drive gear selectively coupled to the gear, and a rotation motor for rotating the drive gear.

The rotary unit may be configured to increase the rotation speed of the rotary ring as the injection pipe moves toward the center of the SCR from outside.

The moving unit includes a guide rail formed on the main body, a driving wheel installed on a lower portion of the base plate and placed on the guide rail to roll along the guide rail, and the base plate is moved along the guide rail between the blasting portion and the nozzle ring portion Lt; / RTI >

The moving unit is provided with a driving sprocket and a driven sprocket on both sides of the main body. The driving sprocket is connected to the rotating shaft of the driving motor. Both ends of the chain connected to the driving sprocket and the driven sprocket are coupled to the base plate , And the chain may move according to the rotation of the drive sprocket to move the base plate.

The variable supporting portion includes a pedestal provided on the base plate and provided with a plurality of supporting rods extending at an angle from the center of the base plate and extending in the radial direction, a plurality of supporting portions provided on the supporting rods, A support bar.

Wherein the support bar is formed with a fastening hole into which the support bar is inserted, a male screw is formed on the outer circumferential surface of the support bar, and a pair of nut members are fastened to the support bar with the support bar interposed therebetween, The height of the top surface of the first and second plates may be adjusted.

The variable support portion may have a structure in which a fastening hole formed in the support base has a slot structure extending along the support base, and the position of the support bar is moved along the support base.

And a pad provided at the upper end of the supporting bar to prevent SCR from being scratched.

Three of the supports may be arranged in a Y-shape.

According to the present embodiment as described above, the SCR of the vehicle can be cleaned more simply and effectively.

It is possible to stably support various types of SCRs which are different from one vehicle to another, so that it is possible to carry out cleaning for various SCRs.

SCR cleaning is performed through the dry process, so that secondary environmental pollution can be minimized.

1 is a schematic view showing a cleaning device for regenerating a vehicle-use smoke reducing device according to the present embodiment.
2 is a schematic view showing the structure of a dust collecting portion of a cleaning device for regenerating a vehicle particulate emission reduction device according to the present embodiment.
3 is a schematic view showing an internal configuration of a cleaning device for regenerating a vehicle-use smoke reducing device according to the present embodiment.
4 is an exploded perspective view showing the configuration of a variable supporting portion of the cleaning device for regenerating a vehicle particulate emission reduction device according to the present embodiment.
5 is a schematic view for explaining the function of the variable support portion of the cleaning device for regenerating the vehicle-use smoke reducing device according to the present embodiment.
6 is a schematic view showing a blasting structure of a cleaning device for regenerating a vehicle-use particulate removing device according to the present embodiment.
FIGS. 7 and 8 are schematic views showing a structure for removing residual materials in the cleaning device for regenerating a vehicle-use particulate removing device according to the present embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention. Wherever possible, the same or similar parts are denoted using the same reference numerals in the drawings.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The singular forms as used herein include plural forms as long as the phrases do not expressly express the opposite meaning thereto. Means that a particular feature, region, integer, step, operation, element and / or component is specified, and that other specific features, regions, integers, steps, operations, elements, components, and / And the like.

All terms including technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. Predefined terms are further interpreted as having a meaning consistent with the relevant technical literature and the present disclosure, and are not to be construed as ideal or very formal meanings unless defined otherwise.

Fig. 1 shows a cleaning device for regenerating a soot reduction device according to the present embodiment.

1, the cleaning apparatus 100 of the present embodiment includes a heating unit 10 for heating the SCR (F), and a closed internal space to remove soot particles from the SCR (F) A base plate 22 provided in the main body 20 and on which a SCR F is placed; compressed air is injected into a heated SCR F provided in the main body 20, A nozzle ring part 70 provided in the main body 20 for removing soot particles remaining in the SCR (F) through the blast part 60; And a dust collecting part connected to the main body 20 for sucking and treating the soot particles removed from the SCR (F).

SCR (Selective Catalytic Reduction) is a structure in which a filter for removing nitrogen oxide is press-fitted into a case, which is a shell, and a case and a filter are formed as one body. Thus, the filter is cleaned while being coupled to the case. Therefore, the size and the shape of the SCR vary depending on the case in which the external appearance is formed.

The cleaning apparatus of the present embodiment further includes a variable support portion for varying the supporting position and height of the SCR in accordance with the shape of the SCR placed on the base plate so as to clean the SCR having various shapes and sizes according to the vehicle without being standardized. The structure of the variable supporting portion will be described later.

In the SCR, the filter and the case are formed as one body, the both ends or one end of the case are cut off and removed, and the filter is mounted on the case and cleaned through the apparatus of the embodiment with only the tip exposed to the outside . In the following description, the term SCR (F) refers to a state in which the filter is exposed by cutting at least one end of the case for cleaning, including a case provided with a filter.

The SCR installed in the exhaust system of the diesel vehicle is a state in which the filter is clogged as the soot particles are accumulated and fixed through the continuous NOx removal process.

The heating unit 10 applies heat to the accumulated SCR (F) to dry and burn the soot particles fixed to the SCR (F).

The heating unit 10 includes a housing 12 provided with a door 14 so that the SCR (F) can be embedded therein. The heating unit 10 operates a heating means such as a burner or an electric heater installed on the inside and outside of the housing 12 to heat the SCR (F) with high heat. The heating unit heats the SCR so that the filter of the SCR is not damaged. SCR filters are used as catalysts such as zeolite, tungsten, barium, etc., and these catalysts are thermally weaker than platinum. Thus, the heating unit heats the filter to a precise temperature, thereby making it possible to perform cleaning while securing the performance of the catalyst having poor thermal stability. When heat is supplied to the SCR (F) in the housing (12), the soot particles fixed to the filter of the SCR (F) are thermally expanded and the adhesion with the SCR (F) So that the separation efficiency can be enhanced.

In this embodiment, the heating temperature for SCR may be 400 to 600 ° C. When the heating temperature of the SCR is lower than 400 ° C in the heating part, it is difficult to oxidize the accumulated pollutants in the filter of the SCR, resulting in a poor cleaning effect. If the heating temperature for SCR exceeds 600 ° C, there is a problem that the SCR internal filter is damaged by high temperature.

The main body 20 receives the heated SCR (F) from the heating portion 10 to remove soot particles fixed to the SCR (F).

The main body 20 forms an airtight structure in the form of an inner hollow box so that the soot particles removed from the SCR (F) are not scattered to the outside. One end of the main body 20 is provided with an entrance port for loading and unloading the SCR (F) into the main body 20, and a door 24 is provided at the entrance port to open or close the entrance port if necessary. Further, a sealing pad (not shown) may be further provided at the doorway so as to maintain airtightness with the door 24.

Inside the main body 20, a base plate 22 on which the SCR (F) is placed is provided. The base plate 22 is installed movably along the inside of the main body 20.

At the lower end of the main body 20, there is provided a conveying duct (see 28 in Fig. 3) through which the soot particles removed from the SCR (F) are removed and conveyed. The conveying duct 28 communicates with the inside of the main body 20 and has a downward inclined structure toward the opposite end from the entrance of the main body 20. [

The dust processing unit is connected to the lower end of the conveying duct 28 to suck and process the dust dropped by the conveying duct 28.

The dust collecting unit includes a suction line 30 connected to the lower end of the main body 20, a suction fan 32 connected to the suction line 30 to provide a suction pressure, A bag filter 36 disposed at the rear end of the cyclone 34 along the suction line 30 to separate and collect the soot particles and a filter 36 connected to the cyclone 34 and the bag filter 36, And a treatment section for treating the soot particles.

The suction pressure by driving the suction fan 32 is applied to the conveying duct 28 connected to the suction line 30 so that the soot particles dropped from the SCR (F) to the conveying duct 28 are sucked into the suction line 30 .

In this process, the soot particles are primarily collected while passing through the cyclone 34 installed in the suction line 30, and the fine dust not collected in the cyclone 34 is collected through the bag filter unit 36 .

Soot particles collected in the cyclone 34 and the bag filter 36 can be easily collected and processed through the processing unit connected to the lower end.

2, the processing unit includes a transfer pipe 40 connected to the lower end of the cyclone 34 and the bag filter unit 36 to transfer the collected soot particles, a transfer pipe 40 installed in the transfer pipe 40, A conveying motor 42 which is installed at the front end of the conveying pipe 40 and is connected to the conveying screw 41 to rotate the conveying screw, a conveying motor 42 connected to the end of the conveying pipe 40, A conveying screw 44 installed in the uprising pipe for moving the soot particles, a conveying motor 45 provided at the leading end of the uprising pipe for rotating the conveying screw, And an outlet 46 communicating with the upper end of the pipe 43 to discharge the soot particles.

The discharge port 46 is provided with a damper 47 for opening and closing the discharge port so that the discharge port 46 is blocked except for the soot particle treatment to prevent the outside air from flowing back through the transfer pipe 40. A damper is also provided at the lower end of the cyclone 34 and the bag filter unit 36 connected to the transfer pipe 40 so that backflow of the soot dust can be blocked if necessary.

The operator connects the storage bag 48 or the like capable of containing the soot particles to the discharge port 46 and operates the feed motor 40 and the feed motors 42 and 45 provided in the uprising pipe 43, Can be processed. When the feed screws 42 and 45 are driven to rotate the feed screws 41 and 44, the soot particles move from the feed pipe 40 to the up pipe 43 along the feed screw, And is stored in the storage bag 48 through the opening 46. Thus, the operator can process the soot particles simply by treating the storage bag 48 when it is filled.

Here, the damper provided at the discharge port 46 is kept closed when the suction fan 32 is driven for the SCR (F) cleaning operation, and is opened during the dust processing operation.

Thus, by transferring the collected soot particles by driving the transfer screws 41 and 44 by connecting the transfer tube 40 to the cyclone 34 and the bag filter unit 36, the conventional worker can manually It is possible to reduce inconvenience to be treated and to minimize scattering of pollutants generated in the transferring process.

In order to adjust the vacuum pressure applied to the main body 20 during the operation of the dust collecting unit, the outside air is introduced into the main body 20 at one end of the nozzle ring 70 of the main body 20, The control damper 35, 37 may be further provided. In the conventional structure, when the suction fan 32 of the dust collecting part is driven, a high-pressure vacuum is formed in the main body 20. [ An excessively large vacuum pressure causes power consumption of the suction fan 32 and shortens the life span. Further, as the flow rate of the air passing through the dust collecting part is decreased, the flow velocity is lowered, soot particles are not smoothly collected, and soot particles are deposited on each part of the apparatus. Accordingly, in the apparatus of this embodiment, as described above, the adjustment damper 35.37 for introducing air is provided to appropriately adjust the vacuum pressure inside the main body 20 and the dust collecting unit, thereby preventing accumulation of soot dust and efficient dust collection. The adjustment damper 35.37 may be structured to be opened according to the vacuum pressure inside the main body 20 due to the driving of the suction fan 32. [ In addition, the control damper 35, 37 may have a check valve structure for allowing air to flow only in one direction, and may be configured to allow the outside air to flow into the main body 20 only.

3 shows the internal structure of the main body 20. As shown in Fig. As shown in FIG. 3, a blasting portion 60 and a nozzle ring portion 70, which are connected to the doorway, are continuously disposed inside the main body 20. The SCR (F) is placed on the base plate 22 provided in the main body 20 and moves from the entrance of the main body 20 to the blasting portion 60 and the nozzle ring portion 70 Respectively.

4, the base plate 22 has a rectangular frame structure, and the center of the frame has a structure in which dust separated from the SCR (F) is passed through the conveying duct 28 at the lower end of the main body 20 . The base plate 22 is provided with a rotary ring 80 for rotating the SCR (F), and a variable support portion for varying the support position and height of the SCR is provided on the rotary ring.

The structure of the variable supporting portion according to this embodiment will be described with reference to FIGS. 4 and 5. FIG.

The variable support portion supports the SCR on the base plate by varying the supporting position and height according to the SCR having various sizes and shapes. The SCR can be stably supported on the base plate in a horizontal state irrespective of its shape and size, and the upper part can be placed at a workable position of the blasting part and the nozzle ring part, thereby enabling efficient cleaning work.

The variable support portion is mounted on a rotary ring 80 provided on the base plate 22 and includes a plurality of support rods 91 extending in the radial direction at an angle from the center of the rotary ring 80 And a plurality of supporting bars 82 mounted on the supporting rods 91 and projecting upward to support the SCRs.

The pedestal (90) is a thin plate structure, and three supports (91) are integrally formed. The pedestal 90 may be fixedly mounted on the rotary ring. Accordingly, when the rotary ring is rotated and rotated, the SCR supported on the rotary ring is rotated.

At least three supports 91 extend from the center of the pedestal 90 in different directions. In this embodiment, three support rods 91 may be arranged in a Y-shape. So that the support bar 92 provided on each support base 91 can support the SCR (F) at at least three points. Therefore, the SCR is supported at three points, and the horizontal state can be stably maintained.

The support bar 92 is installed on the support 91 and extends vertically along the upward direction. The lower end of the SCR (F) is placed and supported on the upper end of the support bar 92. A pad 95 may be further provided on the upper end of the support bar 92 to prevent SCR (F) from being scratched upon contact with the SCR. The pad 95 may be made of, for example, a rubber material.

In this embodiment, the variable support portion has a structure that adjusts the position and height of the support bar 92 corresponding to the shape and size of the SCR (F).

For this, the variable supporting portion is formed with a fastening hole 93 into which the supporting bar 92 is inserted, and the supporting bar 92 is formed with a male thread on the outer circumferential surface, And a pair of nut members 94 are fastened to the support bars 92 to fix the upper ends of the support bars 92 by adjusting the height of the upper ends of the support bars 92.

The variable supporting portion has a structure in which a fastening hole 93 formed in the support base 91 has a long hole structure extending along the support base 91 to move the position of the support bar 92 along the support base 91 .

The fastening holes 93 are elongated along the supports 91. At least one fastening hole 93 may be formed on each support 91. In the present embodiment, the fastening holes 93 are formed at two intervals along the support 91. Each supporting bar 91 extends in the radial direction from the center of the receiving bar 90 so that the supporting bar 92 provided at each of the binding holes 93 is located at the center and the outside of the receiving bar 90, respectively. Accordingly, the support bar 92 located on the center side can support the relatively small size SCR (F), and the outer support bar 92 can support the relatively large size SCR.

In this embodiment, the support bar 92 has a bolt structure. A pair of nut members 94 are fastened to the respective support bars 92 to fix the support bars 92 to the support stand 91. One of the two paired nut members 94 is fastened to the support bar 92 and is located above the support 91 and the other nut member 94 is located below the support 91. Two nut members 94 are fastened to the support bar 92 fitted in the fastening hole 93 with the support bar 92 interposed therebetween. Thus, the support bars 92 are fixed to the support base 91 by fastening the two nut members 94 to the support base 91, respectively. The support bar 92 can adjust the height by moving the support bar 92 upward and downward from the support base 91, that is, the degree of protrusion as the nut member 94 is loosened and tightened. For example, the nut member 94 located on the support base 91 is loosened and moved up, the support bar 92 is lowered, and the nut member 94 located under the support base 91 is fastened to the support base 91 The height of the support bar 92 can be lowered and fixed.

As described above, by moving the support bar 92 along the fastening hole 93 formed in the support base 91, the support position of the SCR (F) is changed, and the support bar 92 is moved up and down with respect to the support base 91 The height of the SCR can be varied.

Accordingly, by suitably adjusting the position and height of the support table 91 in accordance with the shape and size of the SCR (F), it is possible to stably perform the cleaning operation by loading various types of SCR on the base plate.

The base plate 22 is moved from the entrance to the blasting portion 60 and the nozzle ring portion 70 in accordance with the driving of the moving portion provided in the main body 20. [

The moving part may include a guide rail 26 formed on the main body 20 and a driving wheel 23 installed below the base plate 22 and placed on the guide rail 26 and rolling along the guide rail. The base plate 22 may be moved along the guide rail 26 between the blasting portion 60 and the nozzle ring portion 70.

The base plate can be manually pushed by the operator by pushing the base plate.

In addition to the above structure, the moving part can mechanically move the base plate using the driving force of the motor. 4, the moving unit is disposed on the drive sprocket 50 and the driven sprocket 52, the drive sprocket 50 and the driven sprocket 52 provided on both sides of the main body 20, A chain 54 connected to the drive sprocket 22 and a drive motor 56 connected to the drive sprocket 50 for rotating the drive sprocket 50.

The base plate 22 movably installed under the main body 20 is pulled by the chain 54 moving according to the drive of the drive motor 56 to move the main body 20 along the main body 20 between the exit port and the nozzle ring portion 70 .

The chain 54 extends between the driven sprocket 50 and the driven sprocket 52 and is coupled to the base plate 22 having both ends disposed between the drive sprocket 50 and the driven sprocket 52. Accordingly, the base plate 22 connected to the chain 54 is moved between the two sides of the main body 20 in accordance with the movement of the chain 54.

A guide bar 25 is provided in the longitudinal direction of the main body 20 and a guide roll 27 guided and guided by the guide bar is provided at the lower end of the base plate 22 so that the chain- Can be installed. The base plate 22 smoothly moves inside the main body 20 through the driving wheels 23 or the guide rolls 27 so that the SCR F mounted on the base plate 22 is moved to the blasting portion 60 And moves to the nozzle ring portion 70.

The SCR F mounted on the support base 91 is cleaned by sequentially passing through the blasting portion 60 and the nozzle ring portion 70 which are continuously arranged in the main body 20 in accordance with the movement of the base plate 22. [

6 to 8 illustrate the structures of the blasting portion 60 and the nozzle ring portion 70. As shown in FIG.

6, the blasting unit 60 includes a spray box 61 connected to the upper portion of the main body 20 for spraying compressed air with SCR (F), a high pressure hose 62 for supplying compressed air, and a diaphragm valve 64 for controlling discharge of compressed air in the blasting tank.

The blasting unit 60 separates the soot particles from the SCR (F) by spraying compressed air to the SCR (F) subjected to heat.

The spraying cone (61) has a cylindrical shape and a larger diameter toward the lower end. The sprayer (61) is installed at the upper end of the main body (20). The high-pressure air ejected from the sprayer 61 is injected into the main body 20 to the SCR (F) located below the sprayer 61.

A high pressure hose 62 is installed on the upper end of the spraying cone 61 and a blasting tank 63 and a diaphragm valve 64 are connected to the high pressure hose 62. The high-pressure compressed air stored in the blasting tank 63 is instantaneously supplied in accordance with the driving of the diaphragm valve 64 and is injected into the SCR (F) through the sprayer 61. [ In this embodiment, the blast unit 60 blows compressed air to the SCR (F) at a pressure of 3 to 8 kg / cm 2 to remove soot particles according to the driving of the diaphragm valve 64. The compressed air pressure to be applied to the SCR (F) can be variously set, and is not particularly limited.

The blasting tank 63 may receive and store compressed air through a separate compressor or compression tank 68. The blasting tank 63 temporarily stores air to maintain a uniform high pressure state, and reduces pulsation caused by air intermittently supplied from a compressor or a compression tank to obtain a uniform flow rate.

The SCR (F) that has passed through the blasting portion 60 is transferred to the nozzle ring portion 70 disposed next to the blasting portion 60 in accordance with the movement of the base plate 22 to remove the residual soot particles.

7 and 8, the nozzle ring portion 70 includes a spray tube 71 for spraying air disposed in the upper portion of the main body 20 toward the SCR (F) And a rotating portion for rotating the SCR (F) located on the base plate 22 to move the center portion of the SCR (F) from the outside toward the center.

The position shifting unit includes a feed screw shaft 72 horizontally disposed above the SCR F and extending toward the outside of the SCR F in the center direction and a feed screw shaft 72 disposed on the feed screw shaft 72, And a forward and reverse motor 74 connected to the feed screw shaft 72 to rotate the feed screw shaft 72. The feed screw shaft 72 is provided with a moving block 73,

The rotary portion includes a rotary ring 80 rotatably installed on the base plate 22 and having an upper portion SCR (F) mounted thereon, a fixed gear 81 disposed along the outer peripheral surface of the rotary ring 80, A drive gear 82 installed on the inner side surface of the main body 20 and selectively engaged with the fixed gear 81 of the rotary ring 80 in accordance with the movement of the base plate 22, And a rotating motor 83 for rotating the motor.

The coupling structure of the rotary ring 80 and the base plate 22 is well illustrated in Fig. The rotating ring 80 is formed of a circular ring structure of a corresponding size so that a substantially SCR (F) can be placed, and a plurality of ribs 84 are connected through the center and the ribs are opened to allow the soot particles to fall Respectively. As described above, a pedestal 90 having a support 91 is provided at the upper portion of the rotary ring 80 to support the SCR.

A fixed gear 81 is continuously installed on the outer peripheral surface of the rotary ring 80. A drive gear 82 is provided on the inner surface of the main body 20 at a position corresponding to the fixed gear 81 so that the base plate 22 provided with the rotation ring 80 moves toward the nozzle ring portion 70 The fixed gear 81 of the rotary ring 80 is engaged with the driving gear 82. [ 8, the driving gear 82 is connected to the rotary shaft of the rotary motor 83 through a sprocket 85 and a chain 86, and is rotated according to the rotation of the rotary motor 83 .

Accordingly, the nozzle ring part is configured such that the SCR (F) rotates as the spraying tube 71 moves toward the center from the outside of the SCR (F) while the SCR (F) placed on the rotary ring 80 rotates, So that the soot particles remaining in the exhaust gas passage are finally removed.

At the upper end of the main body 20, a spray tube 71 and a lid 77 for covering the position shifting portion are provided so as to be openable and closable. In this embodiment, the lid 77 is made of a transparent material so that the operator can observe the state of the SCR (F) inside the main body 20.

The jetting pipes 71 are installed in the moving block 73 and arranged in the vertical direction from the top of the SCR (F) toward the SCR (F). The hose connected to the injection pipe 71 for supplying high-pressure air extends outside the main body 20 and is connected to a compressor or a compression tank for supplying compressed air.

The forward and reverse motors 74 are provided inside the main body 20 and are provided with bevel gears 75 for transmitting power and are engaged with the forward end of the feed screw shaft 72 and the forward end of the forward and reverse motors 74, . When the forward / reverse motor 74 is rotated forward or reverse, the feed screw shaft 72 is rotated through the bevel gear so that the feed block screw 73 is screwed to the feed screw shaft 72, As shown in FIG. A guide bar 76 is provided in parallel to the feed screw shaft 72 and the moving block 73 is guided along the guide bar 76 through the guide bar.

Here, the feed screw shaft 72 is disposed in the center direction from the outside of the SCR (F), so that the moving block 73 moves between the outside and the center of the SCR (F). Accordingly, the spraying tube 71 provided in the moving block 73 moves toward the center of the SCR (F) from the outside, and injects high-pressure air to the SCR (F).

In FIG. 6, reference numeral 78 denotes a lower-end spraying pipe disposed at the lower end of the SCR (F) and injecting high-pressure air. The lower spraying tube 78 is capable of spraying air to the lower front surface of the rotating SCR by spraying a high-pressure air in a fan shape in the radial direction of the SCR. Soot particles and dirty foreign substances remaining in the lower portion of the SCR are removed by the air injected from the lower injection pipe.

As shown in Fig. 7, in this embodiment, the moving direction of the spray tube 71 is set to a direction moving toward the center from the outer side of the SCR (F).

By moving the spray tube 71 as described above, it is possible to clean the outer portion of the SCR (F), which has not been relatively cleaned by the blasting process, before the center portion in a state in which heat is not cooled after passing through the blasting portion 60 The cleaning efficiency can be maximized.

The rotating portion is configured to increase the rotating speed of the rotating ring 80 as the spraying tube 71 moves toward the center from the outside of the SCR (F).

Therefore, the angular velocity of the SCR (F) with respect to the injection pipe 71 can be kept constant regardless of the position of the injection pipe 71 with respect to the SCR (F).

When the SCR (F) rotates at the same speed, the angular velocity at the periphery of SCR (F) and the angular velocity at the center of SCR (F) are not the same. The angular velocity of the SCR (F) becomes smaller from the outer portion to the central portion. That is, the angular velocity varies depending on the diameter of the rotating body. When the SCR (F) is rotated at the same speed irrespective of the position in the SCR (F) due to the movement of the injection tube 71, the angular velocity of the SCR with respect to the injection pipe 71 at the corresponding position is It becomes the largest and becomes smaller toward the center of the SCR. In this case, since the SCR passes through the spray pipe 71 at a relatively high speed in the outer portion of the SCR, it is not cleaned more than the center portion.

Thus, as described above, the rotary part of the present apparatus has a structure in which the rotational speed of the rotary ring 80 is increased or decreased in accordance with the position of the spray tube 71. That is, the rotary motor 83 of the rotary part has the lowest speed when the jet pipe 71 is outside the SCR (F) and has a structure to increase the rotation speed of the rotary ring 80 as it moves to the center part have. Accordingly, when the injection pipe 71 is located at the outer portion of the SCR, the rotational speed of the SCR (F) is delayed, the angular speed of the SCR (F) relative to the injection pipe 71 becomes relatively low, The angular velocity of the SCR relative to the injection pipe 71 becomes relatively high while the rotational speed of the injection pipe F increases.

Therefore, the angular velocity of the SCR (F) is relatively lowered or raised depending on the position of the injection pipe 71, so that the SCR (F) is rotated at the same linear velocity with respect to the injection pipe 71 regardless of the position of the injection pipe 71 .

As described above, by maintaining the SCR (F) at the same angular velocity with respect to the spray pipe 71 and rotating the SCR (F), the cleaning efficiency at the periphery of the SCR (F) can be increased and the soot particles can be uniformly removed as a whole.

While the illustrative embodiments of the present invention have been shown and described, various modifications and alternative embodiments may be made by those skilled in the art. Such variations and other embodiments will be considered and included in the appended claims, all without departing from the true spirit and scope of the invention.

10: Heating part 20: Body
22: base plate 24: door
26: Guide rail 28: Feed duct
30: suction line 32: suction fan
34: Cyclone 35,37: Control damper
36: bag filter device 40: transfer pipe
41, 44: Feed screw 42, 45: Feed motor
43: riser 46: outlet
47: damper 50: drive sprocket
52: driven sprocket 54: chain
56: drive motor 60: blasting part
61: Dispenser 63: Blasting tank
64: diaphragm valve 70: nozzle ring portion
71: Dispensing tube 72: Feed screw shaft
73: Moving block 74: Forward motor
77: cover 78: bottom spray tube
80: rotating ring 81: fixed gear
82: driving gear 83: rotary motor
90: pedestal 91: support
92: support bar 93: fastening hole
94: nut member 95: pad

Claims (12)

A heating unit for heating the SCR of the exhaust gas particulate reducing apparatus, a main body having a closed inner space to remove soot particles from the SCR, a base plate installed in the main body and on which the SCR is placed, A nozzle ring portion provided in the main body to remove soot particles remaining in the SCR passed through the blasting portion, and a base plate on which the SCR is placed in the main body, A variable supporting portion provided on the base plate for supporting the SCR and varying a supporting position and a height according to the shape of the SCR, and a variable supporting portion connected to the main body for sucking and treating the soot particles removed from the SCR (EN) A cleaning device for regeneration of a vehicle smoke deterioration device including a dust collection part. The method according to claim 1,
The variable supporting portion includes a pedestal provided on the base plate and having a plurality of supporting rods arranged at an angle and extending in the radial direction, and a plurality of supporting bars installed on the supporting rods and protruding upward to support the SCR A device for regeneration of a soot removal device for a vehicle. 3. The method of claim 2,
Wherein the support bar is formed with a fastening hole into which the support bar is inserted, a male screw is formed on the outer circumferential surface of the support bar, and a pair of nut members are fastened to the support bar with the support bar interposed therebetween, And the height of the top of the exhaust pipe is adjusted and fixed. The method of claim 3,
Wherein the variable support portion has a long hole structure in which a fastening hole formed in the support base extends along the support base to move the position of the support bar along the support base. 5. The method of claim 4,
Wherein the three support rods are arranged in a Y-shape. 6. The method according to any one of claims 1 to 5,
The blasting unit may include a sprayer communicating with an upper portion of the main body and spraying compressed air to the SCR, a blasting tank connected to the sprayer through a high pressure hose to supply compressed air, and a diaphragm (EN) A cleaning device for regeneration of a vehicle soot abatement device including a valve. The method according to claim 6,
The nozzle ring portion being disposed toward the SCR from the upper portion of the main body to inject air, a position shifting portion for moving the injection tube toward the center from the outside of the SCR, and a rotation portion for rotating the SCR placed on the base plate, And a regeneration device for regenerating the exhaust gas. 8. The method of claim 7,
The position shifting unit includes a feed screw shaft horizontally disposed on the SCR and extending toward the outside of the SCR in the center direction, a moving block mounted on the feed screw shaft and moved along the feed screw shaft, the feed block being provided with the feed screw, And a forward and reverse motor connected to the shaft for rotating the feed screw shaft. 9. The method of claim 8,
The rotary unit includes a rotary ring rotatably installed on a base plate and having an upper portion coupled to the SCR, a fixed gear installed along an outer circumferential surface of the rotary ring, a fixed gear installed on an inner surface of the rotary unit, And a rotation motor for rotationally driving the driving gear. The cleaning device for regenerating a vehicle smoke deterioration device according to claim 1, 10. The method of claim 9,
Wherein the rotation unit increases the rotation speed of the rotation ring as the injection tube moves from the outside to the center of the SCR. The method according to claim 6,
The dust collecting unit includes a suction line connected to the lower end of the main body, a suction fan connected to the suction line to provide a suction pressure, a cyclone installed on the suction line for separately collecting and collecting the soot particles, And a processing unit connected to the cyclone and the bag filter unit to process the collected soot particles, the apparatus comprising: a dust collecting unit for dust collecting the soot particles; 12. The method of claim 11,
The processing unit includes a transfer tube connected to a lower end of the cyclone and the bag filter to transfer the collected soot particles, a transfer screw installed in the transfer tube for transferring the soot particles, a transfer screw provided at the tip of the transfer tube, A conveying motor for rotating the conveying screw, a rising tube connected to the conveying tube for moving the soot particles discharged from the conveying tube upward, a conveying screw installed in the rising tube for moving the soot particles, And a discharge port communicating with an upper end of the uprising pipe to discharge the soot particles.

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