CN207605530U - A kind of asphalt mixing plant dust prevention system - Google Patents

Abstract

The utility model discloses a kind of asphalt mixing plant dust prevention systems, its key points of the technical solution are that including cold burden storehouse ontology, belt feeder, charging belt machine, drying drum, hot aggregate elevator, vibrating screen, hot aggregate bin, agitated kettle, asphalt tank and finished product bin；Cold burden storehouse ontology, belt feeder, charging belt machine, drying drum, hot aggregate elevator, vibrating screen, hot aggregate bin are sequentially connected, and hot aggregate bin and asphalt tank are connected with agitated kettle, and agitated kettle is connected with finished product bin；Further include set on the level-one dust guard pollution abatement equipment of cold burden storehouse ontology upper end, the three-level dust guard pollution abatement equipment set on the two level dust guard pollution abatement equipment of cold burden storehouse ontology lower end, between cold burden storehouse ontology and belt feeder, set on belt feeder with above charging belt machine level Four dust guard pollution abatement equipment and the emission-control equipment that is connected at drying drum and with the smokejack of drying drum.The device can reduce the dust and exhaust gas that asphalt mixing plant generates during the work time, be conducive to environmental protection.

Description

A kind of asphalt mixing plant dust prevention system

Technical field

The utility model is related to the dust-proof field of asphalt production equipment, more particularly to a kind of asphalt mixing plant dust prevention system.

Background technology

Asphalt mixing plant is different-grain diameter aggregate, filler and the pitch by dry heat at an established temperature Factory's formula complete set of equipments of uniform mixture is mixed by design mixture proportion.And asphalt mixing plant is that have each relatively The unit of independence connects, and forms a system centered on blender.These units include mainly：Cold burden system, Drying drum, hot aggregate elevator, vibrating screen, agitated kettle, asphalt tank and finished product bin etc..

Its main working process is：The sandstone shovel of different size is entered in corresponding cold burden storehouse with loading machine, is then led to Supercooling feed bin falls within belt feeder, and drying drum is transported to via charging belt machine；Drying drum is in such a way that adverse current heats Sand material drying is heated to certain temperature, and sand material constantly moves forward while heating, production in drying drum Raw burning waste gas is discharged by the smokejack above drying drum, and aggregate is after drum outlet comes out, by hot aggregate elevator Lift, be discharged into hot aggregate-screening machine, by screening machine by hot aggregate screening at several specification, flows into respectively corresponding It is stored in hot material warehouse；Pitch fills the powder in the heated bitumen and hot aggregate bin sent while being carried out into agitated kettle strong simultaneously System stirring, the finished product being stirred are admitted in finished product bin.

Authorization Notice No. is the Chinese utility model patent of CN205832819U, and it discloses a kind of asphalt mixing plant smog Dust pelletizing system is characterized in that and is sequentially connected including cold burden storehouse, drying drum, elevator, hot aggregate bin;Hot aggregate bin, powder tank, drip Green tank is connect with agitated kettle;Setting flat belt and oblique belt, oblique belt are connect with drying drum below cold burden storehouse;Flat belt and Confined chamber is set above oblique belt junction, dust removing tube one end is connect with confined chamber, and the other end is connect with deduster;On hot aggregate bin Frequency converting induced draft fan is arranged in side's setting vibrating screen, vibrating screen top;Material overflow port is set on hot aggregate bin, material overflow port by pipeline with gather materials Storehouse connects, and the bin discharge port external that gathers materials also is connect with pulsed jet cloth filter;The three-dimensional enclosing of agitated kettle discharge port welding, utilizes The flue dust of discharge is sucked to reduce in deduster by pipeline with self-suction function and is polluted.

But the anti-dust performance of this asphalt mixing plant is still weaker so that dust, burning waste gas etc. are easy direct It is discharged into air, be easy to cause the pollution of air.

Utility model content

The purpose of this utility model is to provide a kind of asphalt mixing plant dust prevention system, can increase the dust-proof of asphalt mixing plant Performance reduces the discharge of the sources of atmospheric pollution such as the dust that asphalt mixing plant is discharged into air, is conducive to environmental protection.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of asphalt mixing plant is anti- Dirt system, including multiple mutually independent cold burden storehouse ontologies, belt feeder, charging belt machine, drying drum, hot aggregate are promoted Machine, vibrating screen, hot aggregate bin, agitated kettle, asphalt tank and finished product bin；Cold burden storehouse ontology, charging belt machine, is done belt feeder Dry roller, hot aggregate elevator, vibrating screen, hot aggregate bin are sequentially connected, and hot aggregate bin and asphalt tank are connected with agitated kettle, agitated kettle It is connected with finished product bin；Further include the level-one dust guard pollution abatement equipment for being set to cold burden storehouse ontology upper end, two set on cold burden storehouse ontology lower end Grade dust guard pollution abatement equipment, is set to belt feeder and feeding at the three-level dust guard pollution abatement equipment between cold burden storehouse ontology and belt feeder At level Four dust guard pollution abatement equipment above belt feeder and the exhaust gas being connected at drying drum and with the smokejack of drying drum Manage device.

By using above-mentioned technical proposal：The sandstone shovel of different size is entered into corresponding cold burden storehouse ontology with loading machine It is interior, aggregate successively pass through cold burden storehouse ontology, belt feeder, charging belt machine, drying drum, hot aggregate elevator, vibrating screen, Hot aggregate bin enters agitated kettle, and pitch fills the powder in the heated bitumen and hot aggregate bin sent while carrying out forcing to stir into agitated kettle It mixes, the finished product being stirred is admitted in finished product bin.In this process, level-one dust guard pollution abatement equipment, two level dust guard pollution abatement equipment, three-level are anti- Dirt equipment and level Four dust guard pollution abatement equipment can reduce the amount that aggregate is discharged into dust in air during transport, and emission-control equipment can Burning waste gas in drying drum is discharged into air after treatment so that the gas of discharge reaches discharge standard.

Preferably, cold burden storehouse ontology includes the collecting bin of top and the guide storehouse that collecting bin lower end is fixedly connected, and is gathered materials Storehouse is the rectangular tubular of upper and lower opening, and guide storehouse is the tubulose of falling rectangular pyramid of upper and lower opening, and collecting bin is connected to guide storehouse, cold burden Storehouse ontology is supported in ground by rack；

Level-one dust guard pollution abatement equipment is set to cold burden storehouse upper end, including is fixedly connected on the dirt seal housing of collecting bin upper end, and dirt seal housing is in Rectangular-shaped babinet, size are adapted with collecting bin size, and lower part is connected to collecting bin, and its front openings is for feeding.

By using above-mentioned technical proposal：When charging, the dust raised can be stopped by dirt seal housing, and a part of powder Dirt can be fallen into aggregate in the ontology of cold burden storehouse, will not directly be drifted in air.

Preferably, the level-one dust guard pollution abatement equipment further includes the dustproof shade that hangs of side of dust-proof box opening and set on anti- First atomization dust-collecting equipment of dirt box top.

By using above-mentioned technical proposal：In the ontology of cold burden storehouse when charging, dustproof shade can prevent part dust from dust-proof Box opening is blown out, the first atomization dust-collecting equipment the dust raised in dirt seal housing is drenched after as aggregate falls into cold burden storehouse ontology It is interior so that the dust-proof effect of dirt seal housing is more notable.

Preferably, two level dust guard pollution abatement equipment is the dust-proof sheet set on guide storehouse lower part, and dust-proof sheet upper end passes through iron wire hoop On the outer wall of guide storehouse lower part, lower end extends downward into above three-level dust guard pollution abatement equipment.

By using above-mentioned technical proposal：Dust-proof sheet can form one between cold burden storehouse ontology and three-level dust guard pollution abatement equipment Relatively closed dustproof space so that the dust that ontology is fallen from cold burden storehouse will not directly be drifted into air.

Preferably, three-level dust guard pollution abatement equipment includes being located at the stock guide being arranged below the ontology of cold burden storehouse and diagonally downward, being used for The vertical holder of support stock guide and the dust suction cloth for being fixedly connected on stock guide upper surface, stock guide is rectangular, under End extends to above belt feeder, and stock guide both sides are equipped with two blocks of wing plates along the length direction of stock guide, two blocks of wing plates with Stock guide forms the deflector chute for guide.

By using above-mentioned technical proposal：Aggregate is fallen within by cold burden storehouse ontology on stock guide, is slid after stock guide Tiny dust can be retained in dust suction in the dust suction cloth on belt feeder, being fixedly connected in this process on stock guide On cloth, reduce the amount for reaching the dust on charging belt machine.

Preferably, level Four dust guard pollution abatement equipment include multiple dust covers above belt feeder and charging belt machine, with And vertical more first supporting racks being set on ground and be used to support dust cover, dust cover is arch, is located at belt feeder On dust cover be set between two adjacent cold burden storehouse ontologies, dust cover above charging belt machine is to tilt upward to set It sets.

By using above-mentioned technical proposal：During belt feeder and charging belt machine transport aggregate, dust cover can Prevent dust from directly being drifted from exposed belt feeder into air.

Preferably, level Four dust guard pollution abatement equipment further includes the second atomization dust-collecting equipment being set at the top of dust cover.

By using above-mentioned technical proposal：Second atomization dust-collecting equipment is by raising on belt feeder and charging belt machine Dust drench after fall on belt feeder, reduce dust from drifting the possibility into air on belt feeder.

Preferably, emission-control equipment includes body, the dedusting mechanism being set in body；Internal body uses two peaces Loading board interval forms electrostatic room, dirt pocket and desulfurization chamber, and electrostatic precipitator is fixedly installed in electrostatic room, fixes and sets in dirt pocket It is equipped with dedusting mechanism, desulfurization mechanism is fixedly installed in desulfurization chamber；Body length direction both ends be fixedly installed respectively into Inflator and gas outlet, inlet cylinder are connected with the outlet of the smokejack of drying drum；When handling exhaust gas, exhaust gas passes sequentially through electrostatic Deduster, dedusting mechanism and desulfurization mechanism, and be discharged from gas outlet.

By using above-mentioned technical proposal：By dividing electrostatic room, dirt pocket and the desulfurization chamber of setting, energy in body It is enough that tar removing, dedusting, removing and harmful gas are carried out to the burning waste gas being discharged from drying drum respectively, so that burning waste gas It is discharged into air after purification, it is smaller to be injured caused by Man ＆ Nature.

Preferably, the dedusting mechanism includes being arranged at intervals on the indoor multiple filter screens of dedusting, on the downside of dirt pocket and in Each filter screen is both provided with the dust deposited case two being connected to dirt pocket close to air inlet side.

By using above-mentioned technical proposal：By the indoor multiple filter screens of spaced dedusting, can to exhaust gas into Row is dusted by different level so that and dedusting is more thorough, meanwhile, dust is collected by dust deposited case two and is removed.

Preferably, the desulfurization mechanism includes the ponding storehouse for being fixed at desulfurization chamber bottom, is fixed above ponding storehouse It is provided with the sprayed tank being connected to ponding storehouse and the diving for the solution in the ponding storehouse to be pumped into sprayed tank is set Pump has been fixedly arranged at the upper side third nozzle in the sprayed tank, and exhaust gas is connected to inner cavity by sprayed tank lower wall, in the spray It is provided with escape pipe derived from gas in the sprayed tank on the upside of leaching tank.

By using above-mentioned technical proposal：

In conclusion the utility model has the advantages that：

1. the asphalt mixing plant has good dust-proof effect；

2. the asphalt mixing plant also has good exhaust-gas treatment ability.

Description of the drawings

Fig. 1 is the general structure schematic diagram of the asphalt mixing plant；

Fig. 2 is the process flow chart of the asphalt mixing plant；

Fig. 3 is the structural schematic diagram of cold burden storehouse ontology and dirt seal housing；

Fig. 4 is the schematic diagram for highlighting the first atomization dust-collecting equipment；

Fig. 5 is the overall structure diagram of protection sieve；

Fig. 6 is the enlarged drawing at the positions B in Fig. 4；

Fig. 7 is the schematic diagram for the dust-proof sheet for highlighting cold burden storehouse ontology lower end；

Fig. 8 is the schematic diagram for highlighting the three-level dust guard pollution abatement equipment on belt feeder；

Fig. 9 is the schematic diagram for highlighting barrier rib；

Figure 10 is the schematic diagram for highlighting level Four dust guard pollution abatement equipment；

Figure 11 is the schematic diagram for highlighting the second atomization dust guard on belt feeder；

Figure 12 is the schematic diagram for highlighting the second atomization dust guard on charging belt machine；

Figure 13 is the schematic diagram for highlighting emission-control equipment and being connect with drying drum；

Figure 14 is the overall structure diagram of emission-control equipment；

Figure 15 is the half-section diagram of emission-control equipment；

Figure 16 is the sectional view for highlighting the dedusting mechanism in emission-control equipment；

Figure 17 is the structural schematic diagram of prominent filter screen；

Figure 18 is the enlarged drawing at the positions A in Figure 16；

Figure 19 is the sectional view of prominent desulfurization mechanism.

In figure, a, cold burden storehouse ontology；A1, collecting bin；A2, guide storehouse；B, belt feeder；C, charging belt machine；D, it does Dry roller；D1, smokejack；E, hot aggregate elevator；F, vibrating screen；G, hot aggregate bin;H, agitated kettle；I, asphalt tank；J, finished product material Storehouse；1, level-one dust guard pollution abatement equipment；11, dirt seal housing；12, dustproof shade；121, charge door；13, the first atomization dust-collecting equipment；131, first Nozzle；132, the first connection water pipe；133, the first water storage box；14, protection sieve；141, sieve；142, screen frame；15, rectangular channel；2、 Dust-proof sheet；3, three-level dust guard pollution abatement equipment；31, stock guide；32, holder；33, dust suction cloth；34, wing plate；35, barrier rib；4, level Four Dust guard pollution abatement equipment；41, dust cover；42, the first supporting rack；43, the second atomization dust-collecting equipment；431, the second nozzle；432, second connects Water receiving pipe；433, the second water storage box；5, emission-control equipment；51, body；511, supporting rack；512, inlet cylinder；513, outlet Cylinder；514, mounting plate；5141, through-hole；515, electrostatic room；516, dirt pocket；5161, elongated slot；5162, mounting groove；5163, go out dirt Mouthful；517, desulfurization chamber；52, electrostatic precipitator；521, electrode plate；522, dust deposited case one；5221, drawer one；53, dedusting mechanism； 531, filter screen；5311, filter screen one；5312, filter screen two；5313, filter screen three；5314, frame；5315, fixed plate； 53151, gasket；532, dust deposited case two；5321, drawer two；54, desulfurization mechanism；541, ponding storehouse；5411, drain pipe； 5412, inlet tube；5413, ball valve；542, sprayed tank；5421, air inlet pipe；5422, drainpipe；5423, escape pipe；543, it dives under water Pump；5431, water inlet pipe；544, third nozzle；55, suction ventilator；O, angle.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.The identical attached drawing of wherein identical parts Label indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "upper", "lower", " bottom Face " and " top surface " refer to that the direction in attached drawing, word "inner" and "outside" are referred respectively to towards or away from particular elements geometry The direction at center.

A kind of asphalt mixing plant dust prevention system, as depicted in figs. 1 and 2, including multiple mutually independent cold burden storehouse ontology a, Belt feeder b, charging belt machine c, drying drum d, hot aggregate elevator e, vibrating screen f, hot aggregate bin g, agitated kettle h, pitch Tank i and finished product bin j.Cold burden storehouse ontology a, it belt feeder b, charging belt machine c, drying drum d, hot aggregate elevator e, shakes Dynamic sieve f, hot aggregate bin g are sequentially connected, and hot aggregate bin g and asphalt tank i are connected with agitated kettle h, and agitated kettle h is connected with finished product bin j. The system further includes dust-proof set on the level-one dust guard pollution abatement equipment 1 of the cold burden storehouse upper ends ontology a, the two level set on the cold burden storehouse lower ends ontology a Equipment, is set to belt feeder b and feeding skin at the three-level dust guard pollution abatement equipment 3 between cold burden storehouse ontology a and belt feeder b With above machine c level Four dust guard pollution abatement equipment 4 and the exhaust gas that is connected at drying drum d and with the smokejack d1 of drying drum d Processing unit 5.

The sandstone shovel of different size is entered in corresponding cold burden storehouse ontology a with loading machine, then passes through cold burden storehouse ontology a Belt feeder b is fallen within, drying drum d is transported to via charging belt machine c；After drying drum d carries out heating stirring to aggregate, Aggregate is lifted by hot aggregate elevator e, is discharged into hot aggregate-screening machine, by screening machine by hot aggregate screening at several rule Lattice are flowed into hot material warehouse and are stored；Pitch fills the heated bitumen sent and powder in hot aggregate bin g simultaneously into agitated kettle h Action of forced stirring is carried out, the finished product being stirred is admitted in finished product bin j.In this process, level-one dust guard pollution abatement equipment 1, two level are anti- Dirt equipment, three-level dust guard pollution abatement equipment 3 and level Four dust guard pollution abatement equipment 4 can reduce aggregate and be discharged into dust in air during transport Amount, emission-control equipment 5 can be discharged into air the burning waste gas in drying drum d after treatment so that the gas of discharge Body reaches discharge standard.

In conjunction with Fig. 3, cold burden storehouse ontology a includes the collecting bin a1 of top and the guide storehouse that the lower ends collecting bin a1 are fixedly connected a2.Collecting bin a1 be upper and lower opening rectangular tubular, guide storehouse a2 be upper and lower opening the tubulose of falling rectangular pyramid, collecting bin a1 with lead Feed bin a2 connections, cold burden storehouse ontology a are supported in ground by rack.

Level-one dust guard pollution abatement equipment 1 is fixedly connected on cold burden storehouse upper end, including is fixedly connected on the dirt seal housing of the upper ends collecting bin a1 11,11 rectangular babinet of dirt seal housing, size is adapted with collecting bin a1 sizes, and lower part is connected to collecting bin a1, and it is just Face is open for feeding.When charging, the dust raised can be stopped by dirt seal housing 11, and a part of dust can be with aggregate It falls into the ontology a of cold burden storehouse, will not directly drift in air.

The equipment further include the dustproof shade 12 that hangs of side that dirt seal housing 11 is open and set on 11 top of dirt seal housing the One atomization dust-collecting equipment 13.

12 upper end of dustproof shade is set to by iron wire hoop on dirt seal housing 11, and there are one with the upper ends collecting bin a1 for 12 lower end of dustproof shade Fixed distance, forms the charge door 121 that stretches into of loading hopper for allowing dumper, and when charging, a part of dust can pass through outward opening It drifts, dustproof shade 12 can be stopped part by the dust that outward opening drifts, and enhance the dust-proof effect of the dirt seal housing 11.

In conjunction with Fig. 4, the first atomization dust-collecting equipment 13 includes multiple first nozzles 131 being set in dirt seal housing 11, is set to and prevents Dirt case 11 is outer and the first water storage box 133 on roof and is connected between the first water storage box 133 and the first nozzle 131 First connection water pipe 132.First nozzle 131 is set on 11 roof of dirt seal housing, and the first water storage box 133 is internally provided with water pump, water Pump is connected by the first connection water pipe 132 with the first nozzle 131.

In the ontology a of cold burden storehouse when charging, the water in the first water storage box 133 is pumped by the first connection water pipe by water pump In 132, the first nozzle 131 jet atomization water in dirt seal housing 11, with aggregate after the dust raised in dirt seal housing 11 is drenched It falls into the ontology a of cold burden storehouse so that the dust-proof effect of dirt seal housing 11 is more notable.

Although the first nozzle 131 can drench dust so that dust is fallen into aggregate in the ontology a of cold burden storehouse, is made Time is grown, and the dust for still having a small number of diameter very littles enters inside the first nozzle 131, or is attached to the first nozzle 131 surfaces.

It is equipped in dirt seal housing 11 for protecting the protection of the first nozzle 131 to sieve 14, protection sieve 14 is plugged in dirt seal housing 11 At the position of interior close first nozzle 131.In conjunction with Fig. 5, protection sieve 14 includes two rectangular box-like screen frames 142 and sandwiched Sieve 141 between two screen frames 142, sieve 141 are rectangular-shaped gauze, and after being located between two screen frames 142, bolt is worn It crosses two screen frames 142 and sieve 141 is fixed between two screen frames 142.

In conjunction with Fig. 6, the position of 11 left and right side walls inner wall of dirt seal housing contacted with screen frame 142, which offers, allows screen frame 142 to insert The rectangular channel 15 entered, protection sieve 14 are plugged in by rectangular channel 15 inside dirt seal housing 11.When 131 jet atomization water of the first nozzle, Atomized water is contacted with sieve 141, and to form water membrane on sieve 141, the dust of the diameter very little raised can be by sieve 141 stop and are attached to 141 lower surface of sieve, reduce the chance that the dust of these diameter very littles is contacted with the first nozzle 131.

When being fed in the ontology a of cold burden storehouse by dumper, dirt seal housing 11 and dustproof shade 12 in level-one dust guard pollution abatement equipment 1 will Raise dust blocking, prevent dust from directly drifting in air, the first atomization dust-collecting equipment 13 dust is drenched after with bone Material is fallen into the ontology a of cold burden storehouse so that the dust-proof effect of level-one dust guard pollution abatement equipment 1 is more notable.

In conjunction with Fig. 7, two level dust guard pollution abatement equipment is the dust-proof sheet 2 set on the guide storehouse lower parts a2, and 2 upper end of dust-proof sheet passes through iron For silk hoop on the outer wall of the guide storehouse lower parts a2, lower end extends downward into 3 upper end of three-level dust guard pollution abatement equipment.Dust-proof sheet 2 can be cold A relatively closed dustproof space is formed between feed bin ontology a and three-level dust guard pollution abatement equipment 3 so that ontology a is fallen from cold burden storehouse Dust will not directly drift in air.

In conjunction with Fig. 8, three-level dust guard pollution abatement equipment 3 is set between the cold burden storehouse lower ends ontology a and belt feeder b, including is tilted towards The stock guide 31 of lower setting, the vertical holder 32 for being used to support stock guide 31 and it is fixedly connected on 31 upper surface of stock guide Dust suction cloth 33.Stock guide 31 is rectangular-shaped plate of the middle part to lower recess, and 31 lower end of stock guide extends on belt feeder b Side, and 31 both sides of stock guide are vertically equipped with two blocks of wing plates 34, the length direction for being equipped with wing plate 34 along stock guide 31 is arranged, with guide Plate 31 forms deflector chute, and the width of deflector chute is more than the size of the opening of the guide storehouse lower ends a2.

Aggregate is fallen within by cold burden storehouse ontology a on stock guide 31, is slid after stock guide 31 on belt feeder b, Tiny dust can be retained on dust suction cloth 33 by the dust suction cloth 33 being fixedly connected in this process on stock guide 31, be reduced Reach the amount of the dust on charging belt machine c.

In order to enhance interception capacity of the dust suction cloth 33 to dust, blocking portion is equipped in 33 upper surface of dust suction cloth.

In conjunction with Fig. 9, blocking portion can be the more barrier ribs 35 along the setting of 31 width direction of stock guide, 35 cross section of barrier rib For semicircle, it is arranged at equal intervals on stock guide 31, both ends are fixedly connected with the wing plate 34 of 31 both sides of stock guide respectively.Barrier rib 35 height are relatively low, and pico- to protrude 33 surface of dust suction cloth, during aggregate is slipped to downwards along stock guide 31, barrier rib 35 can Preferably tiny dust to be retained on dust suction cloth 33, and larger inhibition will not be caused to the landing of aggregate, and And the blocking capability relative to protrusion is stronger.

Due in exposed existing belt feeder b and charging belt machine c setting and air, aggregate by During expecting belt feeder b and the c conveyings of charging belt machine, some dust can be directly emitted in air, cause the dirt of environment Dye.

In conjunction with Figure 10, Figure 11 and Figure 12, level Four dust guard pollution abatement equipment 4 includes above belt feeder b and charging belt machine c Multiple dust covers 41, vertically be set to ground on and be used to support more first supporting racks 51142 of dust cover 41 and be set to Second atomization dust-collecting equipment 43 at 41 top of dust cover.It is cold that dust cover 41 on belt feeder b is set to adjacent two Between feed bin ontology a, the dust cover 41 above charging belt machine c is to tilt upward setting；Dust cover 41 be arch, second Atomization dust-collecting equipment 43 includes multiple second nozzles 431, the second water storage box on ground for being set to 41 top of dust cover 433 and be connected between the second water storage box 433 and the second nozzle 431 second connection water pipe 432；Second nozzle 431 is located at Inside dust cover 41, and it is arranged along the length direction interval of dust cover 41, the second water storage box 433 is internally provided with water pump, and water pump is logical The second connection water pipe 432 is crossed with the second nozzle 431 to be connected.

During belt feeder b and charging belt machine c transports aggregate, the second nozzle 431 in dust cover 41 to Expect jet atomization water on belt feeder b and charging belt machine c, the dust raised on belt feeder b and charging belt machine c is beaten It is fallen on belt feeder after wet, reduces dust from drifting the possibility into air on belt feeder.

In conjunction with Figure 13, Figure 14 and Figure 15, emission-control equipment 5 is wrapped for handling the burning waste gas generated in drying drum d Include body 51, the electrostatic precipitator being set in body 51 52, dedusting mechanism 53 and desulfurization mechanism 54, wherein exhaust gas is successively By electrostatic precipitator 52 remove exhaust gas in coke tar particles, after be dusted by dedusting mechanism 53, most afterwards through desulfurizing machine structure 54 carry out desulphurization and denitration processing so that the gas of discharge reaches discharge standard.

Body 51 is rectangular, is fixedly installed on the ground by the second supporting rack 511 of setting, length direction both ends point It is not fixedly installed inlet cylinder 512 and gas outlet 513.Inlet cylinder 512 is connected with the outlet of the smokejack d1 of drying drum d, goes out Inflator 513 is for processed exhaust gas to be discharged into air.

Inside body 51 three chambers, respectively electrostatic are partitioned by three pieces of mounting plates 514 being fixedly installed vertically Room 515, dirt pocket 516 and desulfurization chamber 517, and through-hole 5141 is all offered on the mounting plate 514 between three chambers, to make Adjacent two chambers connection is obtained, meanwhile, it is connected with suction ventilator 55 in one end of gas outlet 513, so that exhaust gas can lead to Cross entire emission-control equipment 5.

Electrostatic precipitator 52 is mounted in electrostatic room 515, including is vertically arranged and is parallel to the more of 51 length direction of body Electrode plate 521 will produce high-voltage electrostatic field between polylith electrode plate 521, fixed in the lower surface of electrostatic room 515 at work It is provided with the dust deposited case 1 being connected to electrostatic room 515, wherein horizontal sliding is provided with drawer on the side wall of dust deposited case 1 One 5221.

When exhaust gas is entered by inlet cylinder 512 in electrostatic room 515, oil droplet, the dust of larger particles can be fallen in dust deposited case In drawer 1 in one 522, the oil droplet of lighter in weight can be adsorbed, and portion when by high-voltage electrostatic field by electrode plate 521 Branch is carbonized, and is more effectively removed to tar, while playing degradation harmful components, plays the role of disinfection.

After exhaust gas passes through electrostatic precipitator 52, most dust is removed, to removed to tar Meanwhile more effectively alleviating the dedusting working strength of dedusting mechanism 53.

In conjunction with Figure 16 and Figure 17, dedusting mechanism 53 is fixed in dirt pocket 516, including is fixed at dirt pocket Filter screen 531 in 516 removes dust therein for being filtered to exhaust gas.

Filter screen 531 is provided with multilayer, is described further for three layers herein：

Filter screen 531 includes in setting dirt pocket 516 and close to the filter screen 1 of the side of inlet cylinder 512, close The filter screen 3 5313 of 513 side of gas outlet and the filter screen being folded between filter screen 1 and filter screen 3 5313 2 5312, wherein filter screen 1, filter screen 2 5312, filter screen 3 5313 porosity be sequentially reduced, and by filter screen The gas of 3 5313 discharges meets national standard, by the multiple filtration net 531 of setting, can be carried out by different level to dust air Filtering so that dust is separately removed, and filter screen 531 is not easy to be blocked, and dust removing effects are higher.

Meanwhile when in use between it is longer when, dust be easy accumulation filter screen 531 on, in order to avoid dust accumulation phenomenon Occur, filter screen 531 is obliquely installed so that filter screen 531 is at an acute angle close to the angle o of lower section one side with dirt pocket 516, together When, under air draught effect, in order to enable dust removing effects are preferable, the angle of angle o is controlled at 45 degree -60 between degree, to filter For net 531 in the case where being acted on by air draught, the contact area between exhaust gas and filter screen 531 is larger so that filter effect is preferable, together When, dust is not easy to be deposited on filter screen 531 again.

Filter screen 531 after a period of use, in order to not influence its filter effect, need to clean it, in order to It is easy to clean, filter screen 531 is detachably arranged in dirt pocket 516.

It is that the side far from the second supporting rack 511 is offered perpendicular to 516 length direction of dirt pocket in 516 upper end of dirt pocket Elongated slot 5161, and all offer mounting groove in the both sides of length direction in dirt pocket 516 and the side far from elongated slot 5161 5162, wherein elongated slot 5161, mounting groove 5162 are inclined, and filter screen 531 is facilitated to install, solid in the surrounding of filter screen 531 Surely it is provided with frame 5314, when mounted, filter screen 531 is inserted by elongated slot 5161, and frame 5314 is connected to mounting groove 5162 It is interior, it is fixedly installed fixed plate 5315 in 531 upper end of filter screen, when installation, 5315 level of fixed plate is connected to outside dirt pocket 516 It side and is fixed in the both sides of elongated slot 5161 and by using bolt, meanwhile, in dedusting, dust is stitched from elongated slot 5161 in order to prevent Effusion goes out, and the side of 516 outer wall of dirt pocket is provided with gasket 53151 in fixed plate 5315（As shown in figure 18）.

The material of filter screen 531 can be stainless steel filter screen or non-woven fabrics.

Meanwhile when in use, the dust in dirt pocket 516 is cleared up for convenience, in the lower surface of dirt pocket 516 And dust mouth 5163 is all offered close to the side of inlet cylinder 512 in every piece of filter screen 531, it is set in 516 outside fixation of dirt pocket It is equipped with the dust deposited case 2 532 being connected to dust mouth 5163, one Slideslip of level of dust deposited case 2 532 is provided with drawer two 5321, dust in dust deposited case 2 532 is purged to convenient.

The solid granule in exhaust gas can be removed by the dedusting mechanism 53 of setting, then exhaust gas enters desulfurization Room 517（As shown in figure 19）.

In conjunction with Figure 19, desulfurization mechanism 54 is fixed in desulfurization chamber 517, and desulfurization mechanism 54 includes being fixed at desulfurization The ponding storehouse 541 of 517 bottom of room, the sprayed tank 542 being fixedly installed above ponding storehouse 541 and for will be in ponding storehouse 541 Immersible pump 543 enter the immersible pump 543 of sprayed tank 542, wherein the side wall of sprayed tank 542 is by using air inlet pipe 5421 and peace Through-hole 5141 in loading board 514 connects, to introduce exhaust gas into sprayed tank 542；543 one end of immersible pump is connected by water inlet pipe 5431 Connect ponding storehouse 541, the other end by water inlet pipe 5431 be connected to sprayed tank 542 upside, in be fixedly installed in sprayed tank 542 with The third nozzle 544 that water inlet pipe 5431 connects；Ponding storehouse is communicated with by using drainpipe 5422 in the lower end of sprayed tank 542 541, so that solution enters sprayed tank 542 by water inlet pipe 5431, solution flows back to ponding storehouse 541 by drainpipe 5422 so that Solution forms cycle, can be with recycled for multiple times.

It is connected with escape pipe 5423 in the upside of sprayed tank 542, the other end of escape pipe 5423 connects gas outlet 513, gas Body is discharged after gas outlet 513 finally by the air hose of suction ventilator 55.

When gas passes through sprayed tank 542, in order to sulfur dioxide, the nitrogen oxide in gas（NOx）Equal gases It is removed, for solution using the mixed solution of hypochlorite and pressure chlorate, desulphurization and denitration effect is preferable, and industrial cost Low, waste liquid handlability is high.

In conjunction with Figure 14 and Figure 19, be provided on the side wall of desulfurization chamber 517 connection ponding storehouse 541 drain pipe 5411 and into Liquid pipe 5412, and by using 5413 current limliting of ball valve, so as to be replaced to the liquid in ponding storehouse 541.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Claims (10)

1. a kind of asphalt mixing plant dust prevention system, including multiple mutually independent cold burden storehouse ontologies（a）, belt feeder（b）, on Expect belt feeder（c）, drying drum（d）, hot aggregate elevator（e）, vibrating screen（f）, hot aggregate bin（g）, agitated kettle（h）, asphalt tank （i）And finished product bin（j）；Cold burden storehouse ontology（a）, belt feeder（b）, charging belt machine（c）, drying drum（d）, hot aggregate Elevator（e）, vibrating screen（f）, hot aggregate bin（g）It is sequentially connected, hot aggregate bin（g）And asphalt tank（i）And agitated kettle（h）It is connected, Agitated kettle（h）With finished product bin（j）It is connected；

It is characterized in that：Further include being set to cold burden storehouse ontology（a）The level-one dust guard pollution abatement equipment of upper end（1）, be set to cold burden storehouse ontology（a） The two level dust guard pollution abatement equipment of lower end is set to cold burden storehouse ontology（a）With belt feeder（b）Between three-level dust guard pollution abatement equipment（3）, be set to Belt feeder（b）With charging belt machine（c）The level Four dust guard pollution abatement equipment of top（4）And it is set to drying drum（d）Place and with it is dry Dry roller（d）Smokejack（d1）The emission-control equipment being connected（5）.

2. a kind of asphalt mixing plant dust prevention system according to claim 1, it is characterised in that：Cold burden storehouse ontology（a）Including The collecting bin of top（a1）And collecting bin（a1）The guide storehouse that lower end is fixedly connected（a2）, collecting bin（a1）For upper and lower opening Rectangular tubular, guide storehouse（a2）For the tubulose of falling rectangular pyramid of upper and lower opening, collecting bin（a1）With guide storehouse（a2）Connection, cold burden storehouse Ontology（a）It is supported in ground by rack；

Level-one dust guard pollution abatement equipment（1）Set on cold burden storehouse upper end, including it is fixedly connected on collecting bin（a1）The dirt seal housing of upper end（11）, prevent Dirt case（11）Rectangular babinet, size and collecting bin（a1）Size is adapted, lower part and collecting bin（a1）Connection, and it is just Face is open for feeding.

3. a kind of asphalt mixing plant dust prevention system according to claim 2, it is characterised in that：The level-one dust guard pollution abatement equipment （1）It further include dirt seal housing（11）The dustproof shade that the side of opening is hung（12）And it is set to dirt seal housing（11）First mist at top Change dust-extraction unit（13）.

4. a kind of asphalt mixing plant dust prevention system according to claim 3, it is characterised in that：Two level dust guard pollution abatement equipment be set on Guide storehouse（a2）The dust-proof sheet of lower part（2）, dust-proof sheet（2）Upper end is set to guide storehouse by iron wire hoop（a2）Lower part outer wall On, lower end extends downward into three-level dust guard pollution abatement equipment（3）Top.

5. according to a kind of any asphalt mixing plant dust prevention systems of claim 1-4, it is characterised in that：Three-level dust guard pollution abatement equipment （3）Including being located at cold burden storehouse ontology（a）Lower section and the stock guide being arranged diagonally downward（31）, be used to support stock guide（31）It is perpendicular To holder（32）And it is fixedly connected on stock guide（31）The dust suction cloth of upper surface（33）, stock guide（31）It is rectangular, Lower end extends to belt feeder（b）Top, and stock guide（31）Both sides are along stock guide（31）Length direction be equipped with two pieces of wings Plate（34）, two blocks of wing plates（34）With stock guide（31）Form the deflector chute for guide.

6. a kind of asphalt mixing plant dust prevention system according to claim 5, it is characterised in that：Level Four dust guard pollution abatement equipment（4）Packet It includes and is set to belt feeder（b）With charging belt machine（c）Multiple dust covers of top（41）And it is set on ground and uses vertically In support dust cover（41）More first supporting racks（42）, dust cover（41）For arch, it is located at belt feeder（b）On it is anti- Dust hood（41）Set on two adjacent cold burden storehouse ontologies（a）Between, it is located at charging belt machine（c）The dust cover of top（41）To incline It is arranged obliquely.

7. a kind of asphalt mixing plant dust prevention system according to claim 6, it is characterised in that：Level Four dust guard pollution abatement equipment（4）Also Including being set to dust cover（41）Second atomization dust-collecting equipment at top（43）.

8. a kind of asphalt mixing plant dust prevention system according to claim 1 or claim 7, it is characterised in that：Emission-control equipment（5） Including body（51）, it is set to body（51）Interior dedusting mechanism（53）；Body（51）Inside uses two mounting plates（514）Between Every formation electrostatic room（515）, dirt pocket（516）And desulfurization chamber（517）, electrostatic room（515）Inside it is fixedly installed electrostatic precipitator （52）, dirt pocket（516）Inside it is fixedly installed dedusting mechanism（53）, desulfurization chamber（517）Inside it is fixedly installed desulfurization mechanism（54）； The body（51）Length direction both ends are fixedly installed inlet cylinder respectively（512）And gas outlet（513）, inlet cylinder（512）With Drying drum（d）Smokejack（d1）Outlet be connected；When handling exhaust gas, exhaust gas passes sequentially through electrostatic precipitator（52）, dedusting Mechanism（53）With desulfurization mechanism（54）, and from gas outlet（513）Discharge.

9. a kind of asphalt mixing plant dust prevention system according to claim 8, it is characterised in that：The dedusting mechanism（53）Packet It includes and is arranged at intervals on dirt pocket（516）Interior multiple filter screens（531）, dirt pocket（516）Downside and in each filter screen（531） Close air inlet side is both provided with and dirt pocket（516）The dust deposited case two of connection（532）.

10. a kind of asphalt mixing plant dust prevention system according to claim 8, it is characterised in that：The desulfurization mechanism（54） Including being fixed at desulfurization chamber（517）The ponding storehouse of bottom（541）, in ponding storehouse（541）Top is fixedly installed and ponding Storehouse（541）The sprayed tank of connection（542）And setting is for by the ponding storehouse（541）Interior solution is pumped into sprayed tank（542） Immersible pump（543）, in the sprayed tank（542）Interior has been fixedly arranged at the upper side third nozzle（544）, exhaust gas is by sprayed tank （542）Lower wall is connected to inner cavity, in the sprayed tank（542）Upside is provided with the sprayed tank（542）Derived from interior gas Escape pipe（5423）.