CN103100542B - Concrete mixing plant - Google Patents
Concrete mixing plant Download PDFInfo
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- CN103100542B CN103100542B CN201310053162.7A CN201310053162A CN103100542B CN 103100542 B CN103100542 B CN 103100542B CN 201310053162 A CN201310053162 A CN 201310053162A CN 103100542 B CN103100542 B CN 103100542B
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Abstract
The invention discloses a kind of concrete mixing plant, relate to technical field of engineering machinery.Solve prior art and there is the poor technical problem of dust removing effects.This concrete mixing plant comprises dust arrester, and this dust arrester comprises dust removal machine, dedusting pipeline and powder retrieving pipe road, dedusting pipeline is provided with air flow inlet and air stream outlet, the dust inlet that powder retrieving pipe road is provided with and dust outlet; The inlet scoop of dust removal machine sidepiece is connected with the air stream outlet of dedusting pipeline; Dust delivery outlet bottom dust removal machine is connected with the dust inlet on powder retrieving pipe road, the by-pass valve control of the dust inlet that the dust delivery outlet bottom dust removal machine and being provided with between the dust inlet on powder retrieving pipe road controls dust delivery outlet bottom dust removal machine and powder retrieving pipe road whether conducting.The present invention is for improving the dust removing effects of dust arrester.
Description
Technical field
The present invention relates to technical field of engineering machinery, be specifically related to a kind of concrete mixing plant.
Background technology
Along with the enhancing of people to environmental consciousness and the requirement of national policy, most of concrete mixing plant all takes certain dust suppression to its dust emission.Concrete mixing plant is primarily of the five big systemses such as stirring host, material weighing system, material-transporting system, storing material system and control system and other affiliated facilities composition.
Prior art carries out dedusting by dust removal machine to aggregate midway storehouse, stirring host, the powder metering bucket etc. in concrete mixing plant.Dedusting is to filter from the dust that material discharges in concrete mixing plant fill process, to giving off clean gas outside concrete mixing plant.Stirring host is a kind of device being used for stirring the mixtures such as aggregate, cement, breeze, water.Storehouse, aggregate midway is that a kind of being used for stores the next aggregate of oblique belt feeder transport, and aggregate is entered the device of stirring host.Powder for weighing the powder such as cement, breeze, and is entered stirring host by powder metering bucket.
At least there is following technical problem in prior art:
Do not carry out reasonable distribution to dedusting pipeline in prior art, because of pipeline unreasonable distribution, dedusting does not have dividing of primary and secondary, causes dust removing effects bad;
In prior art, the wind speed of dust removal machine cannot regulate, and causes the dedusting negative pressure impact metering when powder metering; Negative pressure can affect the accuracy of variable, has negative pressure that actual weighing value can be caused higher than metering display numerical value.
Dedusting pipeline and powder retrieving pipe road not separate but shared same pipeline realizes, and have impact on efficiency of dust collection.
Summary of the invention
The object of the invention is the concrete mixing plant proposing a kind of dust arrester and this dust arrester is set, solve prior art and there is the poor technical problem of dust removing effects.In addition, the optimal technical scheme that the embodiment of the present invention provides also has powder metering bucket metering precision and all higher advantage of efficiency of dust collection.
For achieving the above object, the invention provides following technical scheme:
The dust arrester that the embodiment of the present invention provides, comprises dust removal machine, dedusting pipeline and powder retrieving pipe road, wherein:
Described dedusting pipeline is provided with air flow inlet and air stream outlet, the dust inlet that described powder retrieving pipe road is provided with and dust outlet;
The inlet scoop of described dust removal machine sidepiece is connected with the air stream outlet of described dedusting pipeline;
Dust delivery outlet bottom described dust removal machine is connected with the dust inlet on described powder retrieving pipe road, the by-pass valve control of the dust inlet being provided with to control dust delivery outlet bottom described dust removal machine and described powder retrieving pipe road between the dust inlet on the dust delivery outlet bottom described dust removal machine and described powder retrieving pipe road whether conducting.
In one preferably or alternatively embodiment, described by-pass valve control is butterfly valve.
In one preferably or alternatively embodiment, dust delivery outlet bottom described dust removal machine is connected with dust hopper, the spatial accommodation of described dust hopper reduces from top to bottom gradually, the bottom of described dust hopper is connected with the dust inlet on described powder retrieving pipe road, and described by-pass valve control is arranged on the bottom of described dust hopper.
The concrete mixing plant that the embodiment of the present invention provides, comprises the dust arrester that stirring host, storehouse, aggregate midway, powder metering bucket and the arbitrary technical scheme of the embodiment of the present invention provide, wherein:
Air flow inlet in described dust arrester on described dedusting pipeline is connected with storehouse, described aggregate midway;
The dust outlet on described powder retrieving pipe road is connected with described stirring host.
In one preferably or alternatively embodiment, described dedusting pipeline comprises tube connector and sweep-up pipe, wherein:
The air flow inlet of described dedusting pipeline is the port at described sweep-up pipe top, and the port bottom described sweep-up pipe is connected with described stirring host;
Tube wall between the port at described sweep-up pipe top and the port bottom it is also provided with connecting through hole;
The air stream outlet of described dedusting pipeline is one of them port of described tube connector, and wherein another port of described tube connector is connected with the described connecting through hole on described sweep-up pipe;
The control valve whether port bottom described sweep-up pipe is communicated with described tube connector with the bottom port being provided with to control described sweep-up pipe in the described sweep-up pipe between described connecting through hole.
In one preferably or alternatively embodiment, be provided with top cover above described powder metering bucket, described top cover be provided with Ventilated cap and charging port.
In one preferably or alternatively embodiment, the top of described powder metering bucket is connected with described stirring host by collateral branch's pipeline.
In one preferably or alternatively embodiment, the two-port of described collateral branch pipeline is connected with the top of the described top cover above described powder metering bucket and described stirring host respectively.
In one preferably or alternatively embodiment, described dust removal machine, described aggregate storehouse, midway and described powder metering bucket are all arranged on the top of described stirring host, and are provided with the discharge valve controlling described aggregate storehouse, midway and described powder metering bucket discharging opening conducting size separately between the respective discharging opening of described aggregate storehouse, midway and described powder metering bucket and described stirring host.
In one preferably or alternatively embodiment, at least one of them is Pneumatic butterfly valve for described by-pass valve control, described control valve and described discharge valve.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect:
Due in the dust arrester that the embodiment of the present invention provides, the inlet scoop of dust removal machine sidepiece is connected with the air stream outlet of dedusting pipeline, dust delivery outlet bottom dust removal machine is connected with the dust inlet on powder retrieving pipe road, so when dust arrester provided by the invention is applied to concrete mixing plant, the inlet scoop of dust removal machine sidepiece can siphon away by dedusting pipeline the dust (such as: dust) kicked up in aggregate in the fill process of storehouse, aggregate midway, simultaneously, by powder retrieving pipe road, dust is sent in stirring host, thus avoid the dust kicked up in aggregate in the storehouse fill process of aggregate midway and wave and contaminated air, because the pipeline that dust sucks and the pipeline that dust is discharged not same pipeline, so the dust of the dust and discharge that avoid suction interacts, so improve the effect of dedusting, solve prior art and there is the poor technical problem of dust removing effects.
In addition, the by-pass valve control of the dust inlet that the dust delivery outlet bottom dust removal machine and being provided with between the dust inlet on powder retrieving pipe road controls dust delivery outlet bottom dust removal machine and powder retrieving pipe road whether conducting, time that dust passes through and flow can be controlled by the aperture of by-pass valve control, during closing control valve, the dust of the more efficiently dust and discharge that avoid suction affects each other, improve the effect of dedusting so more efficiently, improve the efficiency of dedusting.
The optimal technical scheme that the embodiment of the present invention provides compared with prior art at least can also produce following technique effect:
1, dedusting pipeline reasonable distribution is arranged, can reach good dust removing effects; Dust main in concrete mixing plant use procedure produces in the fill process of storehouse, aggregate midway, in the present invention, dust arrester emphasis absorbs the dust produced in the fill process of storehouse, aggregate midway, and dust in powder metering bucket is less, so have employed collateral branch's pipeline to carry out dedusting, and the dust removal machine in non-used dust arrester, make a distinction between the important and the lesser one, take full advantage of dust removal machine, reach good dust removing effects.
2, be provided with control valve (or claim: wind-speed adjusting device) in dedusting pipeline, achieve the switching of negative pressure when feeding intake and measure, eliminate the impact of dedusting negative pressure on metering;
3, dedusting pipeline separates with powder retrieving pipe road, and on powder retrieving pipe road, be provided with time and flow that by-pass valve control (being preferably butterfly valve) controls dust output, and the dust avoided in two pipelines interacts, and improves efficiency of dust collection.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
The schematic diagram that the concrete mixing plant of dust arrester is set that Fig. 1 provides for the embodiment of the present invention;
Reference numeral: 1, stirring host; 2, powder retrieving pipe road; 3, powder metering bucket; 4, by-pass valve control; 5, dust hopper; 6, Ventilated cap; 7, tube connector; 8, dust removal machine; 9, collateral branch's pipeline; 10, sweep-up pipe; 11, control valve; 12, storehouse, aggregate midway.
Detailed description of the invention
Below by accompanying drawing Fig. 1 and the mode enumerating embodiment more of the present invention, technical scheme of the present invention (comprising optimal technical scheme) is described in further detail.It should be noted that: any technical characteristic in the present embodiment, any technical scheme is all one or more in the technical characteristic of plurality of optional or optional technical scheme, cannot exhaustive all alternative technical characteristics of the present invention and alternative technical scheme in order to describe succinct to need in presents, also the embodiment being not easy to each technical characteristic all emphasizes that it is one of optional numerous embodiments, so those skilled in the art should know: any technical characteristic in the present embodiment and any technical scheme all do not limit the scope of the invention, protection scope of the present invention should comprise those skilled in the art and not pay the thinkable any alternate embodiments of creative work.
Embodiments provide that a kind of dust removing effects is desirable, efficiency of dust collection is high and the reasonable dust arrester of powder metering accuracy and the concrete mixing plant of this dust arrester is set.
Below in conjunction with the elaboration that Fig. 1 carries out specifically to technical scheme provided by the invention, the technical scheme of arbitrary technological means provided by the invention being carried out replacing or two or more technological means provided by the invention being carried out mutually combining and obtain all should within protection scope of the present invention.
As shown in Figure 1, the dust arrester that the embodiment of the present invention provides comprises dust removal machine 8, dedusting pipeline (preferably comprising tube connector 7 and sweep-up pipe 10) and powder retrieving pipe road 2, wherein:
Dedusting pipeline is provided with air flow inlet and air stream outlet, the dust inlet that powder retrieving pipe road 2 is provided with and dust outlet.The inlet scoop of dust removal machine 8 sidepiece is connected with the air stream outlet of dedusting pipeline.Dust delivery outlet bottom dust removal machine 8 is connected with the dust inlet on powder retrieving pipe road 2, the by-pass valve control 4 of the dust inlet that the dust delivery outlet bottom dust removal machine 8 and being provided with between the dust inlet on powder retrieving pipe road 2 controls dust delivery outlet bottom dust removal machine 8 and powder retrieving pipe road 2 whether conducting.By-pass valve control 4 can be adjusted to valve opening state or close valve state, certainly, by-pass valve control 4 can also be allowed as required to control the size of channel conductive area between dust delivery outlet bottom dust removal machine 8 and the dust inlet on powder retrieving pipe road 2.
For sucking the dedusting pipeline of dust from outside (being storehouse 12, aggregate midway, stirring host 1) for dust removal machine 8 herein and not being same pipeline for the powder retrieving pipe road 2 that the dust in dust removal machine 8 is exported in the present invention, the dust flowed in two pipelines can not interact, so the effect of this dust removal machine 8 dedusting is more obvious, efficiency of dust collection is higher.
As a kind of optional or preferably embodiment of the present invention, by-pass valve control 4 is butterfly valve.By-pass valve control 4 is preferably Pneumatic butterfly valve, and butterfly valve can control the size of the channel conductive area carrying dust preferably.Pneumatic butterfly valve self, with cylinder, is opened and closed by strength.
Certainly, other valves (such as: electrically operated valve) are used to replace the technical scheme of butterfly valve also within protection scope of the present invention.
As a kind of optional or preferably embodiment of the present invention, the dust delivery outlet bottom dust removal machine 8 is connected by the dust inlet of dust hopper 5 with powder retrieving pipe road 2.Be provided with dust hopper 5 bottom dust removal machine 8, as shown in Figure 1, the dust delivery outlet bottom dust removal machine 8 is connected with dust hopper 5, and the bottom of dust hopper 5 is connected with the dust inlet on powder retrieving pipe road 2, and by-pass valve control 4 is arranged on the bottom of dust hopper 5.The similar funnel of dust hopper 5, its shape can for the taper in handstand.
Dust hopper 5 can dust adsorption preferably, and can also play good guide effect to the dust exported bottom it.
The concrete mixing plant that the embodiment of the present invention provides, comprises the dust arrester that stirring host 1, storehouse 12, aggregate midway, powder metering bucket 3 and the arbitrary technical scheme of the present invention provide, wherein:
Air flow inlet (being preferably the port at sweep-up pipe 10 top) in dust arrester on dedusting pipeline is connected with storehouse 12, aggregate midway.
The dust outlet on powder retrieving pipe road 2 is connected with stirring host 1.
When dust arrester provided by the invention is applied to concrete mixing plant, the inlet scoop of dust removal machine 8 sidepiece can siphon away by dedusting pipeline the dust kicked up in aggregate in the fill process of storehouse 12, aggregate midway, simultaneously, by powder retrieving pipe road 2, dust is sent in stirring host 1, avoid the dust kicked up in aggregate in the fill process of storehouse 12, aggregate midway to wave and contaminated air, because the pipeline that dust sucks and the pipeline that dust is discharged not same pipeline, so the dust of the dust and discharge that avoid suction interacts, so improve the effect of dedusting.
In addition, the by-pass valve control 4 of the dust inlet that the dust delivery outlet bottom dust removal machine 8 and being provided with between the dust inlet on powder retrieving pipe road 2 controls dust delivery outlet bottom dust removal machine 8 and powder retrieving pipe road 2 whether conducting, time that dust passes through and flow can be controlled by the aperture (aperture refers to the degree of valve open) of by-pass valve control 4, during closing control valve 4, the dust of the more efficiently dust and discharge that avoid suction affects each other, improve the effect of dedusting so more efficiently, improve the efficiency of dedusting.
As a kind of optional or preferably embodiment of the present invention, dedusting pipeline comprises tube connector 7 and sweep-up pipe 10, and wherein: the air flow inlet of dedusting pipeline is the port at sweep-up pipe 10 top, the port bottom sweep-up pipe 10 is connected with stirring host 1.Tube wall between the port at sweep-up pipe 10 top and the port bottom it is also provided with connecting through hole.The air stream outlet of dedusting pipeline is one of them port of tube connector 7, and wherein another port of tube connector 7 is connected with the connecting through hole on sweep-up pipe 10.
The control valve 11 whether port bottom sweep-up pipe 10 is communicated with tube connector 7 with the bottom port being provided with in the sweep-up pipe 10 between connecting through hole to control sweep-up pipe 10.
Control valve 11 flow velocity of the air-flow that dust removal machine 8 sucks can be controlled, so also can be called wind-speed adjusting device herein by the aperture controlling to adjust valve 11.
In the process of aggregate midway storehouse 12 charging, control valve 11 can be made to be in valve opening state, now, the port bottom the port at sweep-up pipe 10 top and sweep-up pipe 10 all can dust adsorption, thus the more efficiently effect that improve dedusting.When powder metering bucket 3 charging is close to when completing or complete, now need the amount (can be weight or volume) of being measured powder by powder metering bucket 3, so control valve 11 can be made to be in close valve state, thus, the suction of the port bottom sweep-up pipe 10 has not existed, negative pressure in stirring host 1 also greatly reduces, so the impact of negative pressure on powder metering bucket 3 greatly reduces, the metering precision of powder metering bucket 3 can be even more ideal.When material in aggregate storehouse 12, midway and powder metering bucket 3 all reaches the amount of needs, the valve below aggregate storehouse 12, midway and powder metering bucket 3 can be opened, material is sent into stirring host 1 and carry out stirring operation by stirring host 1.
As a kind of optional or preferably embodiment of the present invention, be provided with top cover above powder metering bucket 3, top cover be provided with Ventilated cap 6 and charging port.
Ventilated cap 6 can avoid dust to overflow above powder metering bucket 3, and Ventilated cap 6 only allows comparatively clean air-flow to overflow, and visible Ventilated cap 6 can make to overflow from Ventilated cap 6 through the comparatively clean gas of dust-filtering.Charging port is used for being connected with the discharging port of powder input unit the charging realizing powder.
As a kind of optional or preferably embodiment of the present invention, the top of powder metering bucket 3 is connected with stirring host 1 by collateral branch's pipeline 9.The dust kicked up in powder metering bucket 3 fill process can enter stirring host 1 with air-flow by collateral branch's pipeline 9.
As a kind of optional or preferably embodiment of the present invention, the two-port of collateral branch's pipeline 9 is connected with the top of the top cover above powder metering bucket 3 and stirring host 1 respectively.Owing to can flow upward with air-flow when dust is kicked up, the more substantial dust swum in powder metering bucket 3 of the reception that in this structure, collateral branch's pipeline 9 can be ideal.Stirring host 1 headroom is convenient to more greatly dust and is flowed into air-flow.
As a kind of optional or preferably embodiment of the present invention, dust removal machine 8, aggregate storehouse 12, midway and powder metering bucket 3 are all arranged on the top of stirring host 1, and aggregate storehouse 12, midway and being provided with between the respective discharging opening of powder metering bucket 3 and stirring host 1 controls the discharge valve of aggregate storehouse 12, midway and the respective discharging opening conducting size of powder metering bucket 3.This structure can the effect of abundant material self gravitation in the process of material feeding.
As can be seen from Figure 1: storehouse 12, aggregate midway is communicated with stirring host 1 by sweep-up pipe (or claim: dedusting main line) 10, is then communicated with dust removal machine 8 by tube connector 7.Sweep-up pipe 10 there is control valve 11.Powder metering bucket 3 is communicated with stirring host 1 by collateral branch's pipeline 9, has Ventilated cap 6 at powder metering bucket 3 top simultaneously.There is dust hopper 5 bottom dust removal machine 8, be communicated with stirring host 1 by powder retrieving pipe road 2, on dust hopper 5, have by-pass valve control 4.
As a kind of optional or preferably embodiment of the present invention, by-pass valve control 4, at least one of them is Pneumatic butterfly valve to control valve 11 with discharge valve, and by-pass valve control 4, control valve 11 and discharge valve are preferably Pneumatic butterfly valve.Certainly, use other valves to replace the technical scheme of Pneumatic butterfly valve also within protection scope of the present invention.
The course of work of the dust arrester that the embodiment of the present invention provides is as follows:
Open dust removal machine 8 as shown in Figure 1, when storehouse 12, aggregate midway starts charging, by adjustment control valve (or claim: wind-speed adjusting device) 11, control valve is made to be in valve opening state or the larger state of aperture, ensure that dust removal machine 8 mainly carries out dedusting to storehouse 12, aggregate midway, then powder metering bucket 3 starts metering, when powder enters powder metering bucket 3, gas is by Ventilated cap 6 quick drain, the dust kicked up enters stirring host 1 by collateral branch's pipeline 9, now make control valve 11 be in close valve (or claim close) state or the less state of aperture, be not enough to affect the metering of powder metering bucket 3 pairs of powders under the effect that in stirring host 1, negative pressure adjusts at control valve 11.When storehouse 12, aggregate midway treats that material (treating that material can be understood as: material feeding, splicing) is complete, when powder metering bucket 3 also measures complete, aggregate and powder start to feed intake toward stirring host 1, now adjusting control valve 11 makes it be in valve opening state or the less state of aperture, ensure that dust removal machine 8 mainly carries out dedusting to stirring host 1, until the end that feeds intake.Then the dust collected in dust hopper 5 is imported stirring host 1 by powder retrieving pipe road 2 by opening controlling valve door 4.
Arbitrary technical scheme disclosed in the invention described above unless otherwise stated, if the number range of it discloses, so disclosed number range is preferred number range, anyly it should be appreciated by those skilled in the art: preferred number range is only the numerical value that in many enforceable numerical value, technique effect is obvious or representative.Because numerical value is more, cannot be exhaustive, so the present invention just discloses component values to illustrate technical scheme of the present invention, and the above-mentioned numerical value enumerated should not form the restriction to the invention protection domain.
Simultaneously, if the invention described above discloses or relate to parts or the structural member of connection fastened to each other, so, unless otherwise stated, be fixedly connected with and can be understood as: can releasably be fixedly connected with (such as using bolt or screw to connect), also can be understood as: to be non-removablely fixedly connected with (such as rivet, weld), certainly, connection fastened to each other also can be replaced by integral type structure (such as use casting technique is integrally formed create) (obviously cannot adopt except integrally formed technique).
In addition, apply in arbitrary technical scheme disclosed in the invention described above for represent position relationship or shape term unless otherwise stated its implication comprise approximate with it, similar or close state or shape.Arbitrary parts provided by the invention both can be assembled by multiple independent part, and also can be one of the forming manufacture technics separate part out.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; Although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the field are to be understood that: still can modify to the specific embodiment of the present invention or carry out equivalent replacement to portion of techniques feature; And not departing from the spirit of technical solution of the present invention, it all should be encompassed in the middle of the technical scheme scope of request of the present invention protection.
Claims (8)
1. a concrete mixing plant, is characterized in that, comprises stirring host (1), aggregate storehouse, midway (12), powder metering bucket (3) and dust arrester, wherein:
Described dust arrester, comprises dust removal machine (8), dedusting pipeline and powder retrieving pipe road (2),
Described dedusting pipeline is provided with air flow inlet and air stream outlet, the dust inlet that described powder retrieving pipe road (2) is provided with and dust outlet;
The inlet scoop of described dust removal machine (8) sidepiece is connected with the air stream outlet of described dedusting pipeline;
The dust delivery outlet of described dust removal machine (8) bottom is connected with the dust inlet of described powder retrieving pipe road (2), the by-pass valve control of the dust inlet being provided with to control dust delivery outlet bottom described dust removal machine (8) and described powder retrieving pipe road (2) between the dust delivery outlet of described dust removal machine (8) bottom and the dust inlet on described powder retrieving pipe road (2) whether conducting;
Air flow inlet in described dust arrester on described dedusting pipeline is connected with described aggregate storehouse, midway (12);
The dust outlet of described powder retrieving pipe road (2) is connected with described stirring host (1);
Described dedusting pipeline comprises tube connector (7) and sweep-up pipe (10), wherein:
The air flow inlet of described dedusting pipeline is the port at described sweep-up pipe (10) top, and the port of described sweep-up pipe (10) bottom is connected with described stirring host (1);
Tube wall between the port at described sweep-up pipe (10) top and the port bottom it is also provided with connecting through hole;
The air stream outlet of described dedusting pipeline is one of them port of described tube connector (7), and wherein another port of described tube connector (7) is connected with the described connecting through hole on described sweep-up pipe (10);
The control valve (11) whether the port bottom described sweep-up pipe (10) is communicated with described tube connector (7) with the bottom port being provided with in the described sweep-up pipe (10) between described connecting through hole to control described sweep-up pipe (10).
2. concrete mixing plant according to claim 1, is characterized in that, described by-pass valve control is butterfly valve.
3. concrete mixing plant according to claim 1, it is characterized in that, dust delivery outlet bottom described dust removal machine is connected with dust hopper, the spatial accommodation of described dust hopper reduces from top to bottom gradually, the bottom of described dust hopper is connected with the dust inlet on described powder retrieving pipe road, and described by-pass valve control is arranged on the bottom of described dust hopper.
4. concrete mixing plant according to claim 1, is characterized in that, is provided with top cover above described powder metering bucket, described top cover is provided with Ventilated cap and charging port.
5. concrete mixing plant according to claim 4, is characterized in that, the top of described powder metering bucket is connected with described stirring host by collateral branch's pipeline.
6. concrete mixing plant according to claim 5, is characterized in that, the two-port of described collateral branch pipeline is connected with the top of the described top cover above described powder metering bucket and described stirring host respectively.
7. concrete mixing plant according to claim 6, it is characterized in that, described dust removal machine, described aggregate storehouse, midway and described powder metering bucket are all arranged on the top of described stirring host, and are provided with the discharge valve controlling described aggregate storehouse, midway and described powder metering bucket discharging opening conducting size separately between the respective discharging opening of described aggregate storehouse, midway and described powder metering bucket and described stirring host.
8. concrete mixing plant according to claim 7, is characterized in that, at least one of them is Pneumatic butterfly valve for described by-pass valve control, described control valve and described discharge valve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310053162.7A CN103100542B (en) | 2013-02-19 | 2013-02-19 | Concrete mixing plant |
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| CN201310053162.7A CN103100542B (en) | 2013-02-19 | 2013-02-19 | Concrete mixing plant |
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| CN103100542A CN103100542A (en) | 2013-05-15 |
| CN103100542B true CN103100542B (en) | 2015-09-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103568130B (en) * | 2013-09-23 | 2015-08-12 | 中联重科股份有限公司 | Mixing plant host computer system and comprise mixing plant, the mixing plant of this host computer system |
| CN103481377B (en) * | 2013-10-14 | 2015-09-09 | 徐州徐工施维英机械有限公司 | The dust collection method of dust arrester, concrete mixing plant and concrete mixing plant |
| CN103600412A (en) * | 2013-11-12 | 2014-02-26 | 杭州萧山矿山机械厂 | Powder returning structure for dry-mixed mortar storage silo |
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| JP4129869B2 (en) * | 2003-10-01 | 2008-08-06 | オル・ジャパン株式会社 | Concrete, building materials, residual soil processing mixer |
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| CN201745096U (en) * | 2010-06-17 | 2011-02-16 | 三一重工股份有限公司 | Admixture mixing system of concrete mixing plant |
| CN202700933U (en) * | 2012-07-10 | 2013-01-30 | 山东港湾建设集团有限公司 | Dust collecting device of concrete mixing plant |
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