CN209254502U - A kind of heavy-duty diesel oil tail gas micro-dust treatment device - Google Patents

Abstract

The utility model discloses a kind of heavy-duty diesel oil tail gas micro-dust treatment devices, belong to dedusting and purifying air technical field.A kind of heavy-duty diesel oil tail gas micro-dust treatment device is based on inheriting the principle of existing cloth-bag type fibrous dust filter, the heavy-duty diesel oil tail gas micro-dust treatment device is designed to by sand particles as the hardware cloth pouched case of filter medium, is equipped with a micronic dust disposition filtering wall between tail gas cavity to be processed and treated tail gas cavity；The micronic dust disposition filtering wall is in stud structure, its periphery sets a filtering wall, and wall inner cavity sets a partition, and partition two sides are respectively treated a tail gas cavity, treated the tail gas cavity lower end is equipped with a micronic dust collecting mechanism, and the upper end is communicated with gas outlet；The utility model has technical solution novelty, technically reliable, substantive distinguishing features without secondary pollution, safety and environmental protection and positive progress compared with prior art.

Description

A kind of heavy-duty diesel oil tail gas micro-dust treatment device

Technical field

The utility model relates to dedusting and purifying air technical fields more particularly to a kind of heavy-duty diesel oil tail gas micronic dust to handle The technical field of device.

Background technique

With industrialization, the deep propulsion of urbanization, the increase and pollutant emission of energy consumption are caused serious Air pollution has been more than the bearing capacity of the earth, jeopardizes the living environment and health of the mankind.Bulletin according to Chinese Ministry of Environmental Protection's publication is aobvious Show: national 2942.7 ten thousand tons of carbon monoxide of motor vehicle emission in 2014,351.8 ten thousand tons of hydrocarbon, oxynitrides 578.9 Ten thousand tons, 550,000 tons of particulate matter, wherein for the hydronitrogen of emission of diesel engine close to the seventy percent of vehicle mass exhaust total quantity, particulate matter is super Ninety percent is crossed, especially recent automobile pollution has become the important sources of China's air pollution, is to cause gray haze, photochemical fog The major reason of pollution, diesel engine truck exhaust clean extremely urgent.Promote the use of the fuel gas vehicle for reaching six discharge standard of state.According to Related data report, it is about 368.7 hundred million tons that China in 2017, which completes road freight quantity, increases by 10.3% on a year-on-year basis, accounts for multi-transportation The 78% of system total amount.As can be seen that highway in China cargo transport basic role is constantly enhancing.As means of transport, bavin is removed Except oily vehicle, there is presently no any power can substitute its effect in highway goods transportation completely.And with it is new Energy automobile is compared, diesel vehicle dynamic property, economy, safety, in terms of possess very big advantage. The exhaust emissions of vehicle has become the primary pollution source and global problem for influencing China's atmosphere, and heavy-duty diesel oil at present The vehicle condition and its harmfulness of vehicle be also it is very special, exhaust gas from diesel vehicle ingredient again it is considerably complicated, in view of exhaust emissions when Temperature drift, exhaust emissions position be narrow, exciting jolts, after dust particles are subtle, load is unstable, oil quality is current tail gas Processing is horizontal relatively low, and many reasons such as discharge standard height cause heavy-duty diesel vehicle vent gas treatment effect to fluctuate always, tail gas Micronic dust processing is especially true.At present (DPF) the diesel particulate filtering catcher and POC administered of prior art PM particle Grain catalytic oxidizer be relatively advanced technology, they be remove heavy-duty diesel vehicle tail gas micronic dust handle be made that contribution, but There are many drawbacks, some are fatal technological deficiencies.As diesel particulate filtering catcher there is hold dirt filtration resistance it is big, easily High-temp combustion regenerating unit that is stifled, easily broken, needing complexity is pasted to combine to the demanding technological deficiency of oil product.And POC particulate catalytic That there are efficiency of dust collections is low for oxidator, only can remove the 30-60% of tail gas micronic dust total amount, and requires injection pressure high.They Common defects be difficult to meet six standard requirements of state.To overcome major defect existing for existing dedusting technology, applicant is in 2015 Year has applied for invention and created name to State Intellectual Property Office in 04 day 08 month are as follows: a kind of utility model of moving bed granule ash separator Patent, on 01 20th, 2016 Granted publications.Removing using sand particles as filter medium is disclosed in its patent specification Dirt device.Its deduster is equipped with multiple inner cores, is clean gas passages among each inner core, has been orderly arranged outside each the in channel One separation net, the second separation net and grid, between the first separation net and the second separation net be coarse filtration particle path, second every It is the technical solution of thin filtering particle path between off-network and grid.The deduster practices, and is industry coal-boiler Dedusting made positive contributions.Therefore, most of in the market to remove in being substantially improved along with national dust emission standard Dirt device is difficult to meet the needs of moving source prevention and cure of pollution again, especially seeks a kind of new to meet emission request, technically reliable, nothing Secondary pollution, energy-saving and emission-reduction, safety and environmental protection, the heavy-duty diesel oil tail gas micro-dust treatment device to promote the well-being of mankind is for the art It is a technical task urgently to be resolved for technical staff.

Summary of the invention

Technical problem to be solved in the utility model is overcome the deficiencies in the prior art, and provides a kind of new, technology Reliably, without secondary pollution, safety and environmental protection, to improve natural environment, the heavy-duty diesel oil tail gas micro-dust treatment device that promotes the well-being of mankind.

In order to solve the above technical problems, the utility model is achieved by implementing following technical solution: Yi Zhongchong Type exhaust gas from diesel vehicle micro-dust treatment device, including shell, air inlet and air outlet, are characterized in that, the one of the shell An air inlet is set on side wall, air inlet is communicated with tail gas cavity to be processed, another side wall or with setting a gas outlet, outlet on side wall Mouthful tail gas cavity upper end communicates with treated, equipped with a micronic dust between tail gas cavity to be processed and treated tail gas cavity Disposition filtering wall；The micronic dust disposition filtering wall is in stud structure, and periphery sets a filtering wall, and wall inner cavity is set One partition, partition two sides are respectively a processing unit, and treated, and tail gas cavity upper end is communicated with gas outlet；Filter the bottom of wall Portion sets a closed bottom plate；The shell lower end is equipped with a dust accumulation collecting mechanism；The filtering wall is by a metal framework The mesh architecture that the inside and outside separation net that is integrated of connecting therewith is constituted is filled with granularity in the cavity that mesh architecture is constituted Sand particles of the 30-80 mesh as filter medium.

Further to solve above-mentioned technical problem, the preferred embodiment of above-mentioned technical proposal is:

Filtering wall described above is three-decker, is successively arranged blinds filtering layer, fine sand filtering layer, coarse sand filter from outside to inside Layer, separation net is equipped with inside and outside coarse sand filtering layer；The blinds filtering layer is at least five shutter board, spacing is 2-5 ㎝, inclination Angle is 40 ° -65 °, the structure that corner is welded as a whole by round steel or square steel.Filter wall blinds filtering layer inclined plate on and It is the sand particles of 30-80 mesh that the lumen loading of fine sand filtering layer, which has granularity, and the lumen loading of coarse sand filtering layer has the sand of 2-5 ㎜ partial size Stone particle.

Shutter board described above is the shutter board that an inclination angle is in 40 ° -65 °, and shutter board upper limb is convex equipped with a 3-5mm's It rises.

Separation net described above sets for one and clads a metallic sieve on porose metal plate, the aperture in the hole are as follows: 2-5 ㎜, the metallic sieve are as follows: 30-60 mesh.

Office treatment again and again is set on shell described above, remarkets room and micronic dust disposition filtering wall, tail gas cavity to be processed Between joint set an isolation board, isolation board is equipped with and treated hole that tail gas cavity communicates；Room top is remarketed to set There is the aftertreatment device interface of the DOC oxidation catalytic converter communicated with its cavity and SCR selective catalysis device.

The pulse control machine of one compressed air dust-removing machine structure and a compressed air dust-removing machine structure is set outside shell described above Structure, compressed-air atomizer entered by pipeline remarket the cavity top of room, face treated tail gas cavity upper end center, then The anti-tampering partition that office treatment inner cavity setting one connects with partition；The compressed air dust-removing machine structure and pulse control mechanism exists The outside for remarketing room is arranged a compressed air bag and one and is connected thereto the compressed air hose for being integrated conveying compressed air, is pressing One pulse valve is installed, connect a pulse control line with pulse valve, the other end and pulse control of pulse control line on contracting air hose Device connects.

The design of air inlet described above is: the adapter tube that setting one matches with heavy-duty diesel vehicle offgas outlet, adapter tube End sets a ring flange, and the other end sets a taper dilatation pipe and connects with the air inlet on shell and is integrated；At air inlet Case inside at set an air distribution plate, the air distribution plate is the plate body of Yi Cheng ∟ shape, and plate body is opposite with air inlet just Face is plate windward, and two sides are flow distribution plate, and the both ends of upper end respectively set one and connect with shell the support rod being integrated；Under air distribution plate The transverse slat of side is wind deflector, and the end of wind deflector connects with case inside to be integrated.

A sand reservoir box is set above shell described above, lower box sets two transparent plastic hoses and connects as sediment transport hose Sand mouth is connected, the upper end of micronic dust disposition filtering wall is connected on by reprocessing ceiling plate and lower sediment transport pipe.

A reinforcing strip is set at the outer wall center of shell described above.

Dust accumulation collecting mechanism described above: the setting of dust accumulation collecting mechanism exists in shell cavity lower end, including setting The bottom plate of shell lower end installs a drawer on the bottom plate of shell lower end, putting on Sha Kou, stream hawk and drawer panel on the upside of drawer Knob.

The utility model has following more prominent substantive distinguishing features and positive progress compared with prior art:

One is heavy-duty diesel oil tail gas micro-dust treatment device described in the utility model is: running shape with heavy-duty diesel vehicle State and technical parameter are design considerations, and tail gas micronic dust, device are both effectively handled during support vehicles operate normally Including shell, air inlet and air outlet, an air inlet, air inlet and tail gas cavity phase to be processed are set in the one side wall of the shell Logical, another side wall or with a gas outlet is set on side wall, tail gas cavity upper end communicates with treated for gas outlet, tail gas chamber to be processed A micronic dust disposition filtering wall is equipped between body and treated tail gas cavity；The micronic dust disposition filtering wall is in stud Structure, periphery set a filtering wall, and wall inner cavity sets a partition, and partition two sides are respectively a processing unit, and treated Tail gas cavity upper end is communicated with gas outlet；The bottom of filtering wall sets a closed bottom plate；The shell lower end is equipped with a dust accumulation Collecting mechanism；The filtering wall is the netted frame being made of a metal framework and the inside and outside separation net being integrated that connects therewith Structure filled with granularity is technical solution of the 30-80 mesh as the sand particles of filter medium in the cavity that mesh architecture is constituted, Not only make that the design of heavy-duty diesel oil tail gas micro-dust treatment device described in the utility model is simple, technical solution is reliable, makes institute The heavy-duty diesel oil tail gas micro-dust treatment device stated in vehicle operation always in damping, sedimentation, intercept, adherency and again Life-stylize reaches the disposition tail gas micronic dust of high effect cleaning, and the design of the especially described tail gas micro-dust treatment device is in day Font micronic dust disposition filtering wall, the tail gas cavity that makes that treated have being designed as the difunctional structure of double units of respiration channel The prevention and cure of pollution of moving source, which provide one, has breakthrough technical solution, to promote the prevention and cure of pollution of moving source to play significantly Impetus, this is that heavy-duty diesel oil tail gas micro-dust treatment device described in the utility model is had compared with prior art Substantive distinguishing features outstanding.

The second is heavy-duty diesel oil tail gas micro-dust treatment device described in the utility model is to be by the filtering wall Three-decker, is successively arranged blinds filtering layer, fine sand filtering layer, coarse sand filtering layer from outside to inside, be equipped with inside and outside coarse sand filtering layer every Off-network；The blinds filtering layer is at least five shutter board, spacing is 2-5 ㎝, tilt angle is 40 ° -65 °, corner by round steel or The structure that square steel is welded as a whole.It filters on the inclined plate of the blinds filtering layer of wall and the lumen loading of fine sand filtering layer has the granularity to be The sand particles of 30-80 mesh, the lumen loading of coarse sand filtering layer have the technical solution of the sand particles of 2-5 ㎜ partial size, Vehicular exhaust In micronic dust when flowing through micronic dust disposition filtering wall, slowly operation, micronic dust are adsorbed, intercept and filter wall in micronic dust disposition Sand grain surface forms fine and close grey filtering layer, and grey filtering layer controls thickness for the fine particle in further retention micronic dust as needed, makes Treated, and tail gas micronic dust reaches the requirement of six discharge standard of state, this is that the applicant passes through for many years to existing cloth-bag type fiber dust filtering It is invented on the basis of the further investigation of device, this design not only inherits the substantially former of existing cloth-bag type fibrous dust filter design The heavy-duty diesel oil tail gas micro-dust treatment device is designed to dispose filter medium as tail gas micronic dust by sand particles by reason Hardware cloth pouched case disposal plant, through related experiment test prove: heavy-duty diesel oil tail gas described in the utility model Micro-dust treatment device can not only reach removal micronic dust efficiency up to 95% or more, there are 500 DEG C of heatproof or more, moisture resistance, oil resistant, make The outstanding feature grown with the service life, and can reduce use cost, vehicle on-road efficiency is improved, maintenance is convenient and efficient, with The existing deduster used, which is compared to have, overcomes existing cloth-bag type fibrous dust filter, micropore curable type filtering body to hold dirt filtration resistance Greatly, deashing difficulty, the technological deficiency up to broken blocking failure event occurs, make heavy-duty diesel vehicle described in the utility model Tail gas micro-dust treatment device has technical solution novelty, technically reliable, energy-saving and emission-reduction, efficient low-resistance, nothing compared with prior art Secondary pollution, safety and environmental protection, the more prominent substantive distinguishing features to be promoted the well-being of mankind with improving natural environment and positive progress.

The third is heavy-duty diesel oil tail gas micro-dust treatment device described in the utility model is to dispose filtering wall with micronic dust Based on, it is provided with compressed air dust-removing machine structure and its pulse control mechanism and micronic dust collecting mechanism；One is equipped on shell With the skill for the aftertreatment device interface for remarketing DOC oxidation catalytic converter and SCR selective catalysis device that chamber body communicates Art scheme, so that heavy-duty diesel oil tail gas micro-dust treatment device described in the utility model be made to guarantee that diesel vehicle operated normally Under the premise of tail gas micro-dust treatment device ensures dedusting quality in journey, compressed air can be started self by pulse control mechanism The timing of dust-removing machine structure, level pressure are tail gas micro-dust treatment device conveying compression air clean dust accumulation；And nitrogen oxides is removed SCR selective catalysis device system can save a large amount of urea, generate consume and reduce dirt, sulphur excessively to catalysis due to dust covering The injury of agent improves efficiency and the service life of catalyst, makes heavy-duty diesel oil tail gas micronic dust processing dress described in the utility model Set have maintain it is convenient and efficient, reduce use cost, improve vehicle on-road efficiency, compared with the existing deduster used The aspects such as efficiency of dust collection, operating cost, energy-saving and emission-reduction, use condition have more technical characterstic, can not only for it is existing The repacking for carrying out tail gas micro-dust treatment device with heavy-duty diesel vehicle is up to standard, and reaches state to produce the enterprise of diesel vehicle and providing Six discharge standards provide optimal tail gas micronic dust processing scheme, to make heavy-duty diesel oil tail gas described in the utility model Micro-dust treatment device has more prominent substantive distinguishing features and positive progress compared with prior art.

Detailed description of the invention

Included attached drawing, which provides, further understands the utility model, is incorporated into this specification and constitutes this Part of specification, the attached drawing show the embodiments of the present invention and are used to explain that this is practical new together with specification The principle of type.Identical appended drawing reference indicates identical component in the accompanying drawings.

In the accompanying drawings:

Fig. 1 is a kind of heavy-duty diesel oil tail gas micro-dust treatment device structural schematic diagram of the utility model embodiment 1.

Fig. 2 is the cross-sectional view of Fig. 1.

Fig. 3 is a kind of transverse structure section view of heavy-duty diesel oil tail gas micro-dust treatment device of the utility model embodiment 2 Figure.

Fig. 4 is the structural schematic diagram of shutter board.

Fig. 5 is the structural schematic diagram of air inlet.

Figure number label are as follows: 1- sand reservoir box 2- sediment transport hose 3- meets sand mouth 4- and remarkets ceiling plate 5- gas outlet 6- pressure Sediment transport pipe 8- remarkets the anti-tampering partition 10- micronic dust disposition filtering wall 10.1- filter frame of room 9- under contracting air nozzle 7- Frame 10.2- separation net 10.3- sand particles 10.4- blinds filtering layer 10.4.1- shutter board 10.4.2- protrusion 10.5- is thin Sand filter blanket 10.6- coarse sand filtering layer 11- treated tail gas cavity 12- partition 13- puts sand mouth 14- stream hawk 15- bottom plate 16- pulse valve 17- compressed air hose 18- compressed air bag 19- isolation board 20- air inlet 20.1- adapter tube 20.2- flange Disk 20.3- taper dilatation pipe 21- air distribution plate 21.1- plate 21.2- flow distribution plate 21.3- support rod 21.4- wind deflector windward 22- aftertreatment device interface 23- reinforcing strip 24- shell 25- ash drawer 26- dust accumulation collecting mechanism 27- impulse controller 28- pulse control line 29- tail gas cavity to be processed

Specific embodiment

According to the present invention will be described in detail below with reference to the accompanying drawings a kind of heavy-duty diesel oil tail gas micro-dust treatment device and specific knot Structure details, the limitation to the utility model claims that must not be interpreted as in all senses.

Embodiment 1:

A kind of heavy-duty diesel oil tail gas micro-dust treatment device (referring to Fig. 1, Fig. 2) of the utility model embodiment 1, including shell Body 24, air inlet 20 and gas outlet 5, are characterized in that, an air inlet 20, air inlet are set in the one side wall of the shell 24 Mouthfuls 20 communicate with tail gas cavity 29 to be processed, another side wall or with setting a gas outlet 5 on side wall, gas outlet 5 and treated tail 11 upper end of air cavity communicates, and a micronic dust disposition is equipped between tail gas cavity 29 to be processed and treated tail gas cavity 11 and is filtered Wall 10；The micronic dust disposition filtering wall 10 is in stud structure, and periphery sets a filtering wall 10,10 inner cavity of wall If a partition 12,12 two sides of partition are respectively a processing unit, and treated, and 11 upper end of tail gas cavity is communicated with gas outlet 5；It crosses The bottom of filter wall 10 sets a closed bottom plate 15；24 lower end of shell is equipped with a dust accumulation collecting mechanism 26；The filtering Wall 10 is the mesh architecture being made of a metal framework 10.1 and the inside and outside separation net 10.2 being integrated that connects therewith, netted frame It is sand particles 10.3 of the 30-80 mesh as filter medium that granularity is filled in the cavity that structure is constituted.

Further to solve above-mentioned technical problem, the preferred embodiment of above-mentioned technical proposal is:

Separation net 10.2 described above sets for one and clads a metallic sieve (not shown) on porose metal plate, described The aperture in hole are as follows: 5-15 ㎜, the metallic sieve are as follows: 30-60 mesh.

24 top of shell described above sets office treatment 8 again and again, remarkets room 8 and wall 10, to be processed is filtered in micronic dust disposition Joint between tail gas cavity 29 sets an isolation board 19, and isolation board 19 is equipped with that tail gas cavity 11 communicates with treated Hole；After 8 top of room is remarketed equipped with a DOC oxidation catalytic converter communicated with its cavity and SCR selective catalysis device Continuous processing unit interface 22.

The pulse control machine of one compressed air dust-removing machine structure and a compressed air dust-removing machine structure is set outside shell described above Structure, compressed-air atomizer 6 entered by pipeline remarket the cavity top of room 8, face treated 11 upper end center of tail gas cavity Place remarkets the anti-tampering partition 9 that 8 inner cavity of room setting one connects with partition 12；The compressed air dust-removing machine structure and pulse Control mechanism is connected thereto the pressure for being integrated conveying compressed air in one compressed air bag 18 of outside setting for remarketing room 8 and one Contracting air hose 17 installs a pulse valve 16 on compressed air hose 17, and connect a pulse control line 28 with pulse valve 16, pulse The other end of control line 28 connects with impulse controller 27.

Air inlet 20 (referring to Fig. 5) described above is: the adapter tube that setting one matches with heavy-duty diesel vehicle offgas outlet 20.1,20.1 end of adapter tube sets a ring flange 20.2, the other end set a taper dilatation pipe 20.3 and on shell 24 into Port 20, which connects, to be integrated；An air distribution plate 21 is set at 29 inside of shell at air inlet 20, the air distribution plate 21 is in for one The plate body of ∟ shape, the plate body front opposite with air inlet 20 are that plate 21.1, two sides are flow distribution plate 21.2, upper end windward Both ends respectively set one and connect with shell 24 support rod 21.3 being integrated；The transverse slat of 21 downside of air distribution plate is wind deflector 21.4, gear Connect on the inside of the end of aerofoil 21.4 and shell 24 and is integrated.

A sand reservoir box 1 is set above shell 24 described above, 1 lower part of sand reservoir box sets two transparent plastic hoses as sediment transport The connection of hose 2 connects sand mouth 3, and the upper end of micronic dust disposition filtering wall 10 is connected on by reprocessing ceiling plate 4 and lower sediment transport pipe 7 Portion.

A reinforcing strip 23 is set at the outer wall center of shell 24 described above.

Dust accumulation collecting mechanism 26 described above is arranged at 24 cavity lower end of shell, the bottom including 24 lower end of shell is arranged in Plate 15, a drawer 25 is installed on the bottom plate 18 of 24 lower end of shell, and sand mouth 13, stream hawk 14 and drawer face being put in 25 upside of drawer It shakes hands on plate.

A kind of static knot of the one of the above heavy-duty diesel oil tail gas micro-dust treatment device for constituting the utility model embodiment 1 Structure.

A kind of heavy-duty diesel oil tail gas micro-dust treatment device described in the utility model embodiment 1 is to meet long short distance fortune Defeated or professional place is such as: a kind of tail gas that the Medium or severe type diesel vehicle in the internal transport vehicles at station, harbour and goods yard uses is micro- The special-purpose assorted device of dirt processing.

Embodiment 2:

A kind of heavy-duty diesel oil tail gas micro-dust treatment device (referring to Fig. 1, Fig. 3) of the utility model embodiment 2, including shell Body 24, air inlet 20 and gas outlet 5, are characterized in that, the one side wall of the shell 24 or with setting an air inlet on side wall 20, air inlet 20 is communicated with tail gas cavity 29 to be processed, sets a gas outlet 5 on another side wall, gas outlet 5 and treated tail gas 11 upper end of cavity communicates, and a micronic dust disposition filtering wall is equipped between tail gas cavity 29 to be processed and treated tail gas cavity 11 Body 10；The micronic dust disposition filtering wall 10 is in stud structure, and periphery sets a filtering wall 10, and 10 inner cavity of wall is set One partition 12,12 two sides of partition are respectively a processing unit, and treated, and 11 upper end of tail gas cavity is communicated with gas outlet 5；Filtering The bottom of wall 10 sets a closed bottom plate 15；24 lower end of shell is equipped with a dust accumulation collecting mechanism 26；Mistake described above Filter wall 10 is three-decker, is successively arranged blinds filtering layer 10.4, fine sand filtering layer 10.5, coarse sand filtering layer 10.6 from outside to inside, slightly Separation net 10.2 is equipped with inside and outside sand filter blanket；The blinds filtering layer 10.4 is at least five shutter board 10.4.1, spacing 2- 5 ㎝, tilt angle are 40 ° -65 °, the structure that corner is welded as a whole by round steel or square steel.Filter the blinds filter of wall 10 On the shutter board 10.4.1 of layer 10.4 and the lumen loading of fine sand filtering layer 10.5 has granularity for the sand particles of 30-80 mesh, coarse sand The lumen loading of filtering layer 10.6 has the sand particles of 2-5 ㎜ partial size.

Shutter board 10.4.1 (referring to fig. 4) described above is the shutter board 10.4.1 that an inclination angle is in 40 ° -65 °, shutter board 10.4.1 upper limb is equipped with the raised 10.4.2 of a 3-5mm.

Separation net 10.2 described above sets for one and clads a metallic sieve (not shown) on porose metal plate, described The aperture in hole are as follows: 2-5 ㎜, the metallic sieve are as follows: 30-60 mesh.

24 top of shell described above sets office treatment 8 again and again, remarkets room 8 and wall 10, to be processed is filtered in micronic dust disposition Joint between tail gas cavity 29 sets an isolation board 19, and isolation board 19 is equipped with that tail gas cavity 11 communicates with treated Hole；After 8 top of room is remarketed equipped with a DOC oxidation catalytic converter communicated with its cavity and SCR selective catalysis device Continuous processing unit interface 22.

The pulse control machine of one compressed air dust-removing machine structure and a compressed air dust-removing machine structure is set outside shell described above Structure, compressed-air atomizer 6 entered by pipeline remarket the cavity top of room 8, face treated 11 upper end center of tail gas cavity Place remarkets the anti-tampering partition 9 that 8 inner cavity of room setting one connects with partition 12；The compressed air dust-removing machine structure and pulse Control mechanism is connected thereto the pressure for being integrated conveying compressed air in one compressed air bag 18 of outside setting for remarketing room 8 and one Contracting air hose 17 installs a pulse valve 16 on compressed air hose 17, and connect a pulse control line 28 with pulse valve 16, pulse The other end of control line 28 connects with impulse controller 27.

Air inlet 20 (referring to Fig. 5) described above is: the adapter tube that setting one matches with heavy-duty diesel vehicle offgas outlet 20.1,20.1 end of adapter tube sets a ring flange 20.2, the other end set a taper dilatation pipe 20.3 and on shell 24 into Port 20, which connects, to be integrated；An air distribution plate 21 is set at 29 inside of shell at air inlet 20, the air distribution plate 21 is in for one The plate body of ∟ shape, the plate body front opposite with air inlet 20 are that plate 21.1, two sides are flow distribution plate 21.2, upper end windward Both ends respectively set one and connect with shell 24 support rod 21.3 being integrated；The transverse slat of 21 downside of air distribution plate is wind deflector 21.4, gear Connect on the inside of the end of aerofoil 21.4 and shell 24 and is integrated.

A sand reservoir box 1 is set above shell 24 described above, 1 lower part of sand reservoir box sets two transparent plastic hoses as sediment transport The connection of hose 2 connects sand mouth 3, and the upper end of micronic dust disposition filtering wall 10 is connected on by reprocessing ceiling plate 4 and lower sediment transport pipe 7 Portion.

A reinforcing strip 23 is set at the outer wall center of shell 24 described above.

Dust accumulation collecting mechanism 26 described above is arranged at 24 cavity lower end of shell, the bottom including 24 lower end of shell is arranged in Plate 15, a drawer 25 is installed on the bottom plate 18 of 24 lower end of shell, and sand mouth 13, stream hawk 14 and drawer face being put in 25 upside of drawer It shakes hands on plate.

A kind of static structure of the above heavy-duty diesel oil tail gas micro-dust treatment device for constituting the utility model embodiment 2 is set Meter.

A kind of heavy-duty diesel oil tail gas micro-dust treatment device described in the embodiment of the present invention 2 is to meet and transporting for long-distance The sum that uses of Medium or severe type diesel vehicle dedicated the matching of heavy-duty diesel oil tail gas micronic dust processing is carried out for heavy-duty diesel vehicle manufacturer Covering device and provide.

Claims (10)

1. a kind of heavy-duty diesel oil tail gas micro-dust treatment device, including shell, air inlet and air outlet, which is characterized in that described An air inlet is set in the one side wall of shell, air inlet is communicated with tail gas cavity to be processed, another side wall or is gone out with setting one on side wall Port, tail gas cavity upper end communicates with treated for gas outlet, sets between tail gas cavity to be processed and treated tail gas cavity There is a micronic dust disposition filtering wall；The micronic dust disposition filtering wall is in stud structure, and periphery sets a filtering wall, Wall inner cavity sets a partition, and partition two sides are respectively a processing unit, and treated, and tail gas cavity upper end is communicated with gas outlet；It crosses The bottom of filter wall sets a closed bottom plate；The shell lower end is equipped with a dust accumulation collecting mechanism；The filtering wall be by The mesh architecture that the inside and outside separation net that one metal framework and connecting therewith is integrated is constituted is filled out in the cavity that mesh architecture is constituted It is sand particles of the 30-80 mesh as filter medium filled with granularity.

2. heavy-duty diesel oil tail gas micro-dust treatment device according to claim 1, which is characterized in that the filtering wall For three-decker, it is successively arranged blinds filtering layer, fine sand filtering layer, coarse sand filtering layer from outside to inside, is equipped with inside and outside coarse sand filtering layer Separation net；The blinds filtering layer is at least five shutter board, spacing is 2-5 ㎝, tilt angle is 40 ° -65 °, and corner is by round steel Or the structure that square steel is welded as a whole, it filters on the inclined plate of the blinds filtering layer of wall and the lumen loading of fine sand filtering layer has the granularity to be The sand particles of 30-80 mesh, the lumen loading of coarse sand filtering layer have the sand particles of 2-5 ㎜ partial size.

3. heavy-duty diesel oil tail gas micro-dust treatment device according to claim 2, which is characterized in that the shutter board is one Inclination angle is in 40 ° -65 ° of shutter board, and shutter board upper limb is equipped with the protrusion of a 3-5mm.

4. heavy-duty diesel oil tail gas micro-dust treatment device according to claim 1 or 2, which is characterized in that the separation net It is set for one and clads a metallic sieve on porose metal plate, the aperture in the hole are as follows: 2-5 ㎜, the metallic sieve are as follows: 30- 60 mesh.

5. heavy-duty diesel oil tail gas micro-dust treatment device according to claim 1 or 2, which is characterized in that on the shell If office treatment again and again, the joint remarketed between room and micronic dust disposition filtering wall, tail gas cavity to be processed sets an isolation board, Isolation board is equipped with and treated hole that tail gas cavity communicates；It remarkets room top and is equipped with a DOC communicated with its cavity The aftertreatment device interface of oxidation catalytic converter and SCR selective catalysis device.

6. heavy-duty diesel oil tail gas micro-dust treatment device according to claim 1 or 2, which is characterized in that outside the shell The pulse control mechanism of one compressed air dust-removing machine structure and a compressed air dust-removing machine structure is set, compressed-air atomizer by pipeline into Enter to remarket the cavity top of room, at face treated tail gas cavity upper end center, remarkets indoor chamber setting one and partition The anti-tampering partition to connect；The compressed air dust-removing machine structure and pulse control mechanism is in one pressure of outside setting for remarketing room Contracting air packet and one is connected thereto the compressed air hose for being integrated conveying compressed air, and a pulse is installed on compressed air hose Valve, connect a pulse control line with pulse valve, and the other end of pulse control line connects with impulse controller.

7. heavy-duty diesel oil tail gas micro-dust treatment device according to claim 1 or 2, which is characterized in that the air inlet Design be: one adapter tube that matches with heavy-duty diesel vehicle offgas outlet of setting, pipe ends set a ring flange, the other end If a taper dilatation pipe and connecting with the air inlet on shell is integrated；An air distribution plate is set at the case inside at air inlet, The air distribution plate is the plate body of Yi Cheng ∟ shape, and the plate body front opposite with air inlet is that plate, two sides are to shunt windward Plate, the both ends of upper end respectively set one and connect with shell the support rod being integrated；Transverse slat on the downside of air distribution plate is wind deflector, wind deflector End connect with case inside and be integrated.

8. heavy-duty diesel oil tail gas micro-dust treatment device according to claim 1 or 2, which is characterized in that on the shell Side sets a sand reservoir box, and lower box sets two transparent plastic hoses as the connection of sediment transport hose and connects sand mouth, by reprocessing room Top plate and lower sediment transport pipe are connected on the upper end of micronic dust disposition filtering wall.

9. heavy-duty diesel oil tail gas micro-dust treatment device according to claim 1 or 2, which is characterized in that the shell A reinforcing strip is set at outer wall center.

10. heavy-duty diesel oil tail gas micro-dust treatment device according to claim 1 or 2, which is characterized in that the dust accumulation The design of collecting mechanism is: dust accumulation collecting mechanism is arranged in shell cavity lower end, the bottom plate including shell lower end is arranged in, shell One drawer is installed, putting on the upside of drawer is shaken hands on Sha Kou, stream hawk and drawer panel on the bottom plate of lower end.