CN209423218U - Dust pelletizing system and pitch mixing station - Google Patents
Dust pelletizing system and pitch mixing station Download PDFInfo
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- CN209423218U CN209423218U CN201822123501.5U CN201822123501U CN209423218U CN 209423218 U CN209423218 U CN 209423218U CN 201822123501 U CN201822123501 U CN 201822123501U CN 209423218 U CN209423218 U CN 209423218U
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- 239000000428 dust Substances 0.000 title claims abstract description 143
- 238000002156 mixing Methods 0.000 title claims abstract description 12
- 238000005453 pelletization Methods 0.000 title claims description 34
- 239000007788 liquid Substances 0.000 claims abstract description 53
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000005507 spraying Methods 0.000 claims abstract description 19
- 239000010426 asphalt Substances 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 34
- 239000007921 spray Substances 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 13
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 239000000654 additive Substances 0.000 claims description 4
- 230000000996 additive effect Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 235000012771 pancakes Nutrition 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 230000001629 suppression Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000012263 liquid product Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Separation Of Particles Using Liquids (AREA)
Abstract
The disclosure relates to a dust removal system and an asphalt mixing station. The dust removal system includes: the dust hopper bin (2) is communicated with a pipeline (1) through which dust-containing gas flows; and the dust removal spraying mechanism is arranged on the inner side of the pipeline (1) and is positioned on the upper side of the ash hopper (2) and used for spraying dust removal liquid from a dust removal liquid supply source onto dust-containing gas flowing in the pipeline (1) so that the dust removal liquid reacts with dust in the dust-containing gas and falls into the ash hopper (2) after adsorbing the dust. The embodiment of the disclosure can improve the dust removal effect.
Description
Technical field
This disclosure relates to engineering machinery field more particularly to a kind of dust pelletizing system and asphalt mixing plant.
Background technique
With a large amount of project verifications of infrastructure development project and largely overhauling for outmoded road surface, for the need of asphalt
It asks and increasingly increases.And the needs based on energy-saving and emission-reduction, environmental protection, the technical performance index of asphalt blending station is required also increasingly
It is high.Current asphalt mixing plant mostly uses greatly two-stage dedusting method, i.e. gravitational dust collection+bag-type dust.Although being removed by this two-stage
The dust of the overwhelming majority can be removed after dirt, but PM10 fine particle below can not thoroughly remove.These fine particles are such as
Fruit direct emission will be detrimental to health.Also, also there is the exhaust gas after burner combustion in dusty gas, wherein containing acidity
Gas can not be removed in this two-step filter, and direct emission can also pollute atmosphere.Therefore, treated for this two-step filter
Gas needs further purified treatment.
The existing common exhaust-gas treatment mode of asphalt blending station mainly active charcoal absorption, plasma deduster etc., usually
To match part, rather than standard configuration part.Moreover, activated carbon adsorption needs to be replaced frequently absorbent charcoal material, and have one to system pressure
Fixed influence.Plasma deduster higher cost, wet dust removal effect is poor, and there is also cannot be adjusted to lead to water consumption according to operating condition
The disadvantages of amount is too big, can not achieve pernicious gas removal, cement slurry are not easily cleaned.
Summary of the invention
In view of this, the embodiment of the present disclosure provides a kind of dust pelletizing system and asphalt mixing plant, it can be improved dust removing effects.
In one aspect of the present disclosure, a kind of dust pelletizing system is provided, comprising:
Grey hopper is connected to the pipeline that dusty gas flows through;With
Dedusting spraying mechanism is arranged in the insides of pipes, and is located at the upside of the grey hopper, for that will come from dedusting
The dedusting liquid of liquid source of supply is sprayed on the dusty gas flowed in the pipeline, so that dedusting liquid is intracorporal with ash-laden gas
Dust is reacted, and after adsorbing dust, falls into the grey hopper.
In some embodiments, the dedusting spraying mechanism includes:
Multiple dust removal showerheads are arranged at least one section in the axial direction of the pipeline, and are distributed in the pipe
Multiple angle positions in the circumferential direction in road are used to form radial pancake, taper or the fan-spray along the pipeline.
In some embodiments, the multiple dust removal showerhead is in at least part of circumferential direction of the upper semicircumference of the pipeline
Equidistantly distributed.
In some embodiments, the dedusting liquid source of supply includes water pump and dust suppressant supply unit, and the water pump passes through
Water supply pipe is connected to the dedusting spraying mechanism, and the dust suppressant supply unit is connected to the water supply pipe, is used for institute
It states and adds dust suppressant in water supply pipe.
In some embodiments, the dust suppressant supply unit includes control valve, for adjusting the additive amount of dust suppressant.
In some embodiments, discharge valve and liquid level sensor, the discharge valve are additionally provided in the grey hopper
The unlatching when liquid level for being configured as detecting inside the grey hopper in the liquid level sensor reaches default liquid level, will be described
Mixed liquor discharge in grey hopper.
In some embodiments, the grey hopper further include:
Filter device, for being filtered to the mixed liquor being discharged in the grey hopper.
In some embodiments, the dust pelletizing system further include:
Wiper mechanism is arranged in the insides of pipes, and is located at the upside of the grey hopper, for being cleaned by cleaning solution
The ash hopper.
In some embodiments, the wiper mechanism includes:
Multiple cleaning sprayers are arranged at least one section in the axial direction of the pipeline, and are distributed in the pipe
Multiple angle positions in the circumferential direction in road, are used to form column wash liquid stream.
In some embodiments, the dedusting spraying mechanism includes multiple dust removal showerheads, is arranged in the axis along the pipeline
On the upward same section, section where section where the multiple cleaning sprayer and/or the multiple dust removal showerhead is located at
The upstream of the vertical centerline of the ash hopper, and be the grey hopper along institute with the spacing of the vertical centerline of the grey hopper
State the 1/6~1/4 of the axial width of pipeline.
In some embodiments, the coated inner wall of the grey hopper has anticorrosion material.
In some embodiments, the dust pelletizing system further include: multiple cleaning sprayers, the multiple cleaning sprayer with it is described
Multiple dust removal showerheads are arranged on the different cross section in the axial direction of the pipeline.
In some embodiments, the injection pressure and/or angle of the multiple dust removal showerhead and/or the multiple cleaning sprayer
It spends adjustable.
In some embodiments, the dust pelletizing system further include:
Dust detection unit, for detecting the intracorporal granularity of dust of ash-laden gas or concentration, so as in granularity of dust or concentration
The valve in water pump or water supply pipe is opened when reaching preset threshold.
In some embodiments, the bulkhead of the grey hopper is equipped with observation window.
In another aspect of the disclosure, a kind of asphalt mixing plant, including dust pelletizing system above-mentioned are provided.
Therefore, according to the embodiment of the present disclosure, dedusting spraying mechanism is arranged in insides of pipes to flow into pipeline dust-laden
Gas sprays dedusting liquid, which can adsorb dust, and react with dust, later fall into grey hopper, in this way can be effective
Ground reduces the intracorporal dustiness of ash-laden gas and harmful substance, and reduces the water of dedusting consumption.
Detailed description of the invention
The attached drawing for constituting part of specification describes embodiment of the disclosure, and together with the description for solving
Release the principle of the disclosure.
The disclosure can be more clearly understood according to following detailed description referring to attached drawing, in which:
Fig. 1 is the structural schematic diagram according to some embodiments of disclosure dust pelletizing system;
Fig. 2 is the structural schematic diagram of Section A-A in Fig. 1;
Fig. 3 is the structural schematic diagram of dust suppressant supply unit in some embodiments according to disclosure dust pelletizing system;
Fig. 4 is the control principle drawing according to some embodiments of disclosure dust pelletizing system.
It should be understood that the size of various pieces shown in attached drawing is not to draw according to actual proportionate relationship.
In addition, same or similar reference label indicates same or similar component.
Specific embodiment
The various exemplary embodiments of the disclosure are described in detail now with reference to attached drawing.Description to exemplary embodiment
It is merely illustrative, never as to the disclosure and its application or any restrictions used.The disclosure can be with many differences
Form realize, be not limited to the embodiments described herein.These embodiments are provided so that the disclosure is thorough and complete, and
The scope of the present disclosure is given full expression to those skilled in the art.It should also be noted that unless specifically stated otherwise, otherwise in these implementations
Component described in example and the positioned opposite of step should be construed as merely illustrative, not as limitation.
" first ", " second " used in the disclosure and similar word are not offered as any sequence, quantity or again
The property wanted, and be used only to distinguish different parts.The similar word such as " comprising " or "comprising" means the element before the word
Cover the element enumerated after the word, it is not excluded that be also covered by the possibility of other element."upper", "lower", "left", "right" etc. are only used
In indicating relative positional relationship, after the absolute position for being described object changes, then the relative positional relationship may also be correspondingly
Change.
In the disclosure, when being described to certain device between the first device and the second device, in the certain device
There may be devices between two parties between the first device or the second device, and device between two parties can also be not present.When being described to specific device
When part connects other devices, which can be directly connected to without device between two parties with the other devices, can also be with
It is not directly connected to the other devices and there is device between two parties.
All terms (including technical term or scientific term) that the disclosure uses are common with disclosure fields
The meaning that technical staff understands is identical, unless otherwise specifically defined.It is also understood that in term such as defined in the general dictionary
The meaning consistent with their meanings in the context of the relevant technologies should be interpreted as having, without application idealization or
The meaning of extremely formalization explains, unless being clearly defined herein.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
As shown in Figure 1, being the structural schematic diagram according to some embodiments of disclosure dust pelletizing system.With reference to Fig. 1, some
In embodiment, dust pelletizing system includes: grey hopper 2 and dedusting spraying mechanism.Grey hopper 2 is connected to the pipeline 1 that dusty gas flows through.
The upstream (on the left of Fig. 1) of the pipeline 1 can be connect with deduster, and downstream (on the right side of Fig. 1) can be connect with air-introduced machine.Grey hopper 2 can quilt
It is configured in cylinder shape, cone-shaped or Fig. 2 above for cylinder shape, is below the hollow warehouse of cone-shaped.Grey hopper can pass through
The modes such as welding or bolt assembly are fixedly connected with pipeline 1.
The setting of dedusting spraying mechanism is located at the upside of the grey hopper 2 in 1 inside of pipeline, removes for that will come from
The dedusting liquid of dirt liquid source of supply is sprayed on the dusty gas flowed in the pipeline 1, so as to dedusting liquid with dusty gas
Interior dust is reacted, and after adsorbing dust, falls into the grey hopper 2.The reactant of dust and dedusting liquid in order to prevent
The bulkhead for corroding grey hopper 2, can be in the coated inner wall anticorrosion material of grey hopper 2.
The dusty gas sprinkling that the present embodiment is flowed by the way that dedusting spraying mechanism is arranged in insides of pipes into pipeline removes
Dirt liquid, which can adsorb dust, and react with dust, later fall into grey hopper, dust-laden can be effectively reduced in this way
The intracorporal dustiness of gas and harmful substance, and reduce the water of dedusting consumption.
With reference to Fig. 1 and Fig. 2, in some embodiments, dedusting spraying mechanism includes multiple dust removal showerheads 3.Multiple dedusting sprays
First 3 are arranged at least one section in the axial direction of the pipeline 1, and are distributed in multiple in the circumferential direction of the pipeline 1
Angle position is used to form radial pancake, taper or the fan-spray along the pipeline 1.It may make multiple dedustings in this way
Spray head 3 can form the ash-laden gas that coverage area is bigger to be sprayed, and is flowed in such pipeline 1 in multiple circumferential angles of pipeline 1
Body more fully can be adsorbed and be reacted after spraying.It is more uniform in section in order to make to be sprayed at pipeline 1, preferably make
Multiple dust removal showerheads 3 equidistantly distributed in at least part of circumferential direction of 1 upper semicircumference of pipeline.
The quantity of dust removal showerhead 3 can be 2~6, and the opening and closing of each dust removal showerhead 3 can be controlled separately, and
It sprays pressure and adjustable angle, can be configured according to different working condition requirements.In order to realize the supply control of dedusting liquid,
In some embodiments, dedusting liquid source of supply includes water pump and dust suppressant supply unit.The water pump passes through water supply pipe and institute
The connection of dedusting spraying mechanism is stated, the dust suppressant supply unit is connected to the water supply pipe, for into the water supply pipe
Add dust suppressant.
Operator can manually control water pump and dust suppressant supply unit to obtain the flow of different dedusting liquid and remove
The concentration of dust agent.In some embodiments, dust pelletizing system further includes for detecting the intracorporal granularity of dust of ash-laden gas or concentration
Dust detection unit, the dust detection unit may be provided at the upstream position of dedusting spraying mechanism in pipeline 1.It is detected according to dust
The detection data of unit, operator or controller can be opened when granularity of dust or concentration reach preset threshold water pump or
Valve in water supply pipe.In addition, operator or controller can also bases according to the detection data of dust detection unit
The granularity or concentration of dust adjust the flow of water supply pipe by control water pump or valve.
In order to improve water mist to the adsorption effect of dust, and the pernicious gas in chalk dust removing is removed, can also be sprayed leading to dedusting
The addition of dust suppressant is carried out on the water supply pipe of head by dust suppressant supply unit.Dust suppressant can be biological dust suppressant or change
Learn dust suppressant.The state of dust suppressant can be liquid or solid-state.Solid dust suppressant can be configured to liquid according to demand.
With reference to Fig. 3, in some embodiments, dust suppressant supply unit may include the tank body 10 for storing dust suppressant, connection tank
The pipeline 12 of body 10 and water supply pipe and the control valve 11 being arranged in pipeline 12.Operator or controller can be according to powder
The detection data of dirt detection unit controls the control valve 11, to adjust the additive amount of dust suppressant.In addition, the additive amount of dust suppressant
It can also be controlled according to other factors such as quantity, the water-aspirator pressures of used dust removal showerhead.
With reference to Fig. 1 and Fig. 2, in some embodiments, also discharge valve 5 can be equipped in the grey hopper 2 and liquid level passes
Sensor 9.In Fig. 1, the bottom of grey hopper 2 can successively be connect with discharge valve 5 and discharge line 6 by flange 7 and flange 13.
When the liquid level that discharge valve 5 can be configured to detect inside the grey hopper 2 in the liquid level sensor 9 reaches default liquid level
It opens, the mixed liquor in the grey hopper 2 is discharged.During dedusting, gradually accumulation powder can be mixed in grey hopper 2
The mixed liquor of dirt, dedusting liquid and reaction product etc. needs to discharge in time after the mixed liquor runs up to certain altitude.
Therefore it can detect whether the liquid level of mixed liquor reaches default liquid level in time by setting liquid level sensor 9, operate in this way
Personnel or controller can control discharge valve 5 according to the detection data of liquid level sensor 9 and open, to make in grey hopper 2
Mixed liquor discharge, realize the reduction of liquid level.
In order to reduce water consumption, preferably further comprise in grey hopper 2: filter device.The filter device can be to described
The mixed liquor being discharged in grey hopper 2 is filtered, and filtered liquid can reenter the water system of dedusting liquid, can also be another
It is used for other purposes.
Residue is formed due to that there may be some dust that can stick in pipeline or grey hopper in dust removal process, in order to
Pipeline or grey hopper is set to be more convenient for cleaning, in some embodiments, dust pelletizing system can also include wiper mechanism.The wiper mechanism
It may be provided at 1 inside of pipeline, and be located at the upside of the grey hopper 2, for cleaning the grey hopper 2 by cleaning solution.
Wiper mechanism can periodically carry out cleaning, can also manually control carry out cleaning according to operator.After cleaning
Mixed liquor can also realize level sensing, liquid discharge, mistake by above-mentioned liquid level sensor 9, discharge valve 5, filter device etc.
It filters and recycles.
With reference to Fig. 1, in some embodiments, wiper mechanism includes: multiple cleaning sprayers 4.Each cleaning sprayer 4 is arranged in
Along at least one section in the axial direction of the pipeline 1, and the multiple angle positions being distributed in the circumferential direction of the pipeline 1,
It is used to form column wash liquid stream.Column wash liquid stream, which can be formed the inner wall of pipeline 1 or grey hopper 2, biggish washes away pressure
Power, to realize better cleaning effect.The quantity of cleaning sprayer 4 can be 2~6, and unlatching and the pass of each cleaning sprayer 4
Closing can be controlled separately, and it sprays pressure and adjustable angle, so that each position to grey hopper is rinsed.Feel ashamed personnel or
Person's controller can configure it according to different working condition requirements.
In Fig. 1, multiple dust removal showerheads 3 be may be arranged on the same section in the axial direction of the pipeline 1, and described
Multiple cleaning sprayers 4 may be arranged on another section in the axial direction of the pipeline 1.4 institute of dust removal showerhead 3 and cleaning sprayer
Section be respectively positioned on grey hopper 2 vertical centerline upstream, and with the spacing d of the vertical centerline of the grey hopper 2 be
The 1/6~1/4 of the width of axial direction of the grey hopper 2 along the pipeline 1.So either dust removal showerhead 3 spray dedusting liquid
Or the cleaning solution that cleaning sprayer 4 sprays can enter in grey hopper 2 under the action of dust-contained airflow in the duct, reduce quilt
Dust-contained airflow blows to the flow of the pipeline in grey hopper downstream.
With reference to Fig. 1, in some embodiments, multiple cleaning sprayers 4 are arranged in the multiple dust removal showerhead 3 along institute
It states on the different cross section in the axial direction of pipeline 1, in this way interfering with each other between reduction cleaning sprayer and dust removal showerhead, simplifies structure
Design.And in further embodiments, dust removal showerhead 3 and cleaning sprayer 4 can also be arranged in along axial same section.Separately
Outside, multiple dust removal showerheads 3 can also be arranged in along axial multiple sections, or twist be arranged.And multiple cleaning sprayers 4
It can also be arranged in along axial multiple sections, or twist arrange.
With reference to Fig. 2, in some embodiments, observation window 8 can also be set on the bulkhead of grey hopper 2.Such operator
Observation window 8 can be opened periodically or non-periodically to observe the adhesion situation of grey 2 inner wall of hopper, to pass through wiper mechanism pair in time
Grey hopper 2 is cleaned.
As shown in figure 4, being the control principle drawing according to some embodiments of disclosure dust pelletizing system.In removing for the present embodiment
In dirt system, settable controller 14 carries out centralized control.Liquid level sensor 9 and dust detection unit 16 are believed with controller 14
Number connection, be respectively used to provide to controller 14 1 upstream of liquid level signal and pipeline in grey hopper 2 granularity of dust or concentration letter
Number.
In some embodiments, controller 14 is connect with 3 signal of dust removal showerhead, and can be according to the inspection of dust detection unit 16
Measured data controls dust removal showerhead 3 and changes its opening and closing, injection pressure and spray angle etc..For example, when dust laden air enters pipe
Behind road 1, when dust detection unit detects that dust concentration and/or granularity in the dust laden air reach preset threshold, it can open
Part or all of dust removal showerhead 3 is dusted.Also, it can also be according to the dust concentration and/or granularity adjustment under different operating conditions
The injection pressure and spray angle of dust removal showerhead 3.Further, controller 14 can also with the water pump 15 of dedusting liquid source of supply and
11 signal of control valve connection in dust suppressant supply unit, and the discharge pressure of control water pump 15 and adjusting under different operating conditions
The aperture of valve 11, to adjust the flow and concentration of dedusting liquid.
In some embodiments, controller 14 is also connect with 4 signal of cleaning sprayer, can be periodically or according to instruction control cleaning
The part of 4 pairs of spray head grey hoppers 2 and pipeline 1 is cleaned.Controller 14 can also control cleaning sprayer 4 and change injection pressure
With spray angle etc., to be more fully rinsed operation to grey hopper 2 etc..
In some embodiments, controller 14 can also be connect with 5 signal of discharge valve, according to the liquid in grey hopper 2
Position signal opens discharge valve 5 in time the mixed liquor accumulated in grey hopper 2 is discharged, to avoid hydrorrhea is mixed in grey hopper 2
Out into pipeline 1.
Above-mentioned dust pelletizing system is applicable to all kinds of scenes for needing dedusting, is particularly suitable for application to higher dust-proof demand
Asphalt mixing plant.Therefore, the disclosure also provides a kind of asphalt mixing plant, the embodiment including any one aforementioned dust prevention system.
So far, the presently disclosed embodiments is described in detail.In order to avoid covering the design of the disclosure, do not describe
Some details known in the field.Those skilled in the art as described above, completely it can be appreciated how implement here
Disclosed technical solution.
Although being described in detail by some specific embodiments of the example to the disclosure, the skill of this field
Art personnel it should be understood that above example merely to be illustrated, rather than in order to limit the scope of the present disclosure.The skill of this field
Art personnel it should be understood that can not depart from the scope of the present disclosure and spirit in the case where, modify to above embodiments or
Some technical features can be equivalently replaced.The scope of the present disclosure is defined by the following claims.
Claims (16)
1. a kind of dust pelletizing system characterized by comprising
Grey hopper (2), the pipeline flowed through with dusty gas (1) are connected to;With
Dedusting spraying mechanism, setting are located at the upside of the grey hopper (2) on the inside of the pipeline (1), remove for that will come from
The dedusting liquid of dirt liquid source of supply is sprayed on the dusty gas flowed in the pipeline (1), so as to dedusting liquid with ash-laden gas
Intracorporal dust is reacted, and after adsorbing dust, falls into the grey hopper (2).
2. dust pelletizing system according to claim 1, which is characterized in that the dedusting spraying mechanism includes:
Multiple dust removal showerheads (3), are arranged at least one section in the axial direction of the pipeline (1), and are distributed in described
Multiple angle positions in the circumferential direction of pipeline (1) are used to form radial pancake, taper or the sector along the pipeline (1)
It is spraying.
3. dust pelletizing system according to claim 2, which is characterized in that the multiple dust removal showerhead (3) is in the pipeline (1)
Upper semicircumference at least part of circumferential direction on equidistantly distributed.
4. dust pelletizing system according to claim 1, which is characterized in that the dedusting liquid source of supply includes water pump (15) and suppression
Dust agent supply unit, the water pump (15) are connected to by water supply pipe with the dedusting spraying mechanism, and the dust suppressant supply is single
It is first to be connected to the water supply pipe, for adding dust suppressant into the water supply pipe.
5. dust pelletizing system according to claim 4, which is characterized in that the dust suppressant supply unit includes control valve
(11), for adjusting the additive amount of dust suppressant.
6. dust pelletizing system according to claim 1, which is characterized in that be additionally provided with discharge valve in the grey hopper (2)
(5) and liquid level sensor (9), the discharge valve (5) are configured as detecting the grey hopper in the liquid level sensor (9)
(2) mixed liquor in the grey hopper (2) is discharged for unlatching when internal liquid level reaches default liquid level.
7. dust pelletizing system according to claim 1, which is characterized in that the ash hopper (2) further include:
Filter device, for being filtered to the mixed liquor being discharged in the grey hopper (2).
8. dust pelletizing system according to claim 1, which is characterized in that further include:
Wiper mechanism, setting is located at the upside of the grey hopper (2) on the inside of the pipeline (1), for clear by cleaning solution
Wash the grey hopper (2).
9. dust pelletizing system according to claim 8, which is characterized in that the wiper mechanism includes:
Multiple cleaning sprayers (4), are arranged at least one section in the axial direction of the pipeline (1), and are distributed in described
Multiple angle positions in the circumferential direction of pipeline (1), are used to form column wash liquid stream.
10. dust pelletizing system according to claim 9, which is characterized in that the dedusting spraying mechanism includes multiple dedusting sprays
Head (3), is arranged on the same section in the axial direction of the pipeline (1), section where the multiple cleaning sprayer (4)
And/or section where the multiple dust removal showerhead (3) is located at the upstream of the vertical centerline of the grey hopper (2), and with it is described
The spacing of the vertical centerline of grey hopper (2) is the 1/6~1/ of the width of axial direction of the grey hopper (2) along the pipeline (1)
4。
11. dust pelletizing system according to claim 1, which is characterized in that the coated inner wall of the ash hopper (2) has anticorrosion
Material.
12. dust pelletizing system according to claim 2, which is characterized in that further include: multiple cleaning sprayers (4) are the multiple
Cleaning sprayer (4) and the multiple dust removal showerhead (3) are arranged on the different cross section in the axial direction of the pipeline (1).
13. dust pelletizing system according to claim 12, which is characterized in that the multiple dust removal showerhead (3) and/or described more
The injection pressure and/or adjustable angle of a cleaning sprayer (4).
14. dust pelletizing system according to claim 4, which is characterized in that further include:
Dust detection unit (16), for detecting the intracorporal granularity of dust of ash-laden gas or concentration, so as in granularity of dust or concentration
The valve in water pump (15) or water supply pipe is opened when reaching preset threshold.
15. dust pelletizing system according to claim 1, which is characterized in that the bulkhead of the ash hopper (2) is equipped with observation window
(8)。
16. a kind of asphalt mixing plant, which is characterized in that including any dust pelletizing system of claim 1~15.
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CN109432916A (en) * | 2018-12-18 | 2019-03-08 | 江苏徐工工程机械研究院有限公司 | Dust pelletizing system and pitch mixing station |
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