CN102229198B - Spraying and dedusting system and concrete mixing plant with same - Google Patents
Spraying and dedusting system and concrete mixing plant with same Download PDFInfo
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- CN102229198B CN102229198B CN201110087297A CN201110087297A CN102229198B CN 102229198 B CN102229198 B CN 102229198B CN 201110087297 A CN201110087297 A CN 201110087297A CN 201110087297 A CN201110087297 A CN 201110087297A CN 102229198 B CN102229198 B CN 102229198B
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Abstract
The invention relates to a concrete mixing plant, and in particular relates to a dedusting system of a concrete mixing plant. The invention aims to provide a mixing plant dedusting system with a better dedusting effect. For achieving the aim, the invention provides a spraying and dedusting system which comprises a dust collecting device and a dust removing device, wherein the dust absorption end of the dust collecting device is communicated with a dust generating device; the dust removing device comprises a cylinder body with a spraying region; and the dust exhaust end of the dust collecting device extends into the cylinder body, and is positioned below the spraying region. By virtue of carrying out dust collecting and dust removal separately, dust generated by the mixing plant can be eliminated effectively, which is much favorable for environment conservation.
Description
Technical field
The present invention relates to a kind of concrete mixing plant, relate in particular to a kind of dust pelletizing system of concrete mixing plant.
Background technology
At present, dedusting mainly contains cloth-bag type dedusting and forced action type dedusting dual mode to mixing plant.The cloth-bag type dust arrester comprises dust return pipe, ventilation duct, weighing hopper, cloth bag and stirring host, and cloth bag connects stirring host through dust return pipe, and ventilation duct connects weighing hopper, utilizes cloth bag to inhale Zhang Jinhang and gathers dust; The cloth-bag type dedusting structure is simple, and cost is low, and this mode effect in the early stage is remarkable; Can avoid dust to leak outside effectively, eliminate the positive negative pressure of system, but the time one be long; Laying dust increases on the bag wall; It is very poor that dust removing effects becomes gradually, because its arrangement space requirement is bigger, is difficult to accomplish attractive in appearance on the whole simultaneously.The forced action type dust arrester comprises dust collecter, dust return pipe, ventilation duct and stirring host, and dust collecter is connected with stirring host through dust return pipe, ventilation duct, adopts the driven by motor blower fan to force dedusting; The forced action type dust arrester need consume extra power, and mobile use cost and the maintenance cost of installing strongly of air is all higher, and is easy to generate positive negative pressure, thereby cement and admixture measuring accuracy are had a negative impact.
In addition; Chinese patent CN200620051499 also discloses a kind of box dust arrester; It comprises the case that gathers dust, big breather pipe; The said case that gathers dust is communicated with through two on two and above big breather pipe and the stirring host and above weighing hopper, and the top of the said case that gathers dust also is provided with unidirectional ventilating opening.
Above-mentioned mixing plant dust arrester all will not gather dust, the dedusting branch is arranged, and dedusting is not very thoroughly, and the dust of collecting is not that to stay in the dust collection device be exactly to have flowed to atmosphere, fail to realize recycling not environmental protection and energy saving.
Summary of the invention
The objective of the invention is to: provide a kind of dust removing effects better mixing plant dust pelletizing system, will gather dust and dust removal step is separated, it is more thorough to make dust eliminate.
For this reason, the present invention provides following technical scheme:
A kind of spraying and dust-removing system; Comprise dust arrester installation and dust arrester, the dust absorption edge of said dust arrester installation is communicated with the dust generation device, and said dust arrester comprises the cylindrical shell of being with spraying area; The dust outlet side of said dust arrester installation stretches in the said cylindrical shell, and is positioned at the below of said spraying area; Said cylindrical shell also comprises the storage area, and said storage area is positioned at said spraying area below.
Preferably, said spraying area is provided with two-layer and above nozzle, and every layer of nozzle quantity be two or more than.
Preferably, the spout of said top nozzle down, the spout of other layer nozzle is up.
Alternatively, said dust arrester also comprises the storage area water supply pump, and it is communicated with said storage area with said spraying area, the water source is provided for said spraying area through said storage area.
Preferably, said dust arrester installation is an air-introduced machine, and said dust generation device comprises stirring host, and the dust absorption edge of said air-introduced machine is communicated with said stirring host through pipeline one.
Preferably, said dust generation device also comprises the temporary bucket of the aggregate that is communicated with said stirring host, and another dust absorption edge of said air-introduced machine is communicated with the temporary bucket of said aggregate through the pipeline two that is provided with by-pass valve control.
Preferably, the diameter of said pipeline two is greater than the diameter of said pipeline one.
Preferably, on the said stirring host negative pressure valve is installed.
Further, said spraying and dust-removing system also comprises device for recovering powder, and the one of which end is communicated with the lower end of said cylindrical shell, and the other end is communicated with said stirring host.
Preferably, said device for recovering powder is a water weighing hopper.
Another object of the present invention provides a kind of environmental protection energy-saving concrete mixing plant, for this reason, the invention provides following technical scheme:
A kind of concrete mixing plant, it comprises above-mentioned each the described spraying and dust-removing system of power.
With respect to prior art, advantage of the present invention is following:
1, good dedusting effect: process is gathered dust, two steps of dedusting, and dust content greatly reduces;
2, gather dust wide: can collect the dust that the temporary bucket of stirring host and aggregate produces simultaneously;
3, environmental protection and energy saving: the dust in the dusty gas almost all gets into the storage area, gets into the stirring host utilization then, has practiced thrift aggregate when having protected environment;
4, integration is high, and cost is low: accomplish the water metering when recycling dust, and rationally distributed, compact conformation, the dust pelletizing system parts that need increase have seldom reduced cost.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment, the present invention and useful technique effect thereof are further elaborated, wherein:
Fig. 1 is the structural representation of spraying and dust-removing system of the present invention.
The specific embodiment
Spraying and dust-removing system of the present invention comprises dust generation device, dust arrester installation, dust arrester and device for recovering powder, and is as shown in Figure 1:
The dust generation device comprises: be provided with the stirring host 11 of negative pressure valve 12, and with stirring host 11 connections and to stirring host 11 the temporary bucket 13 of aggregate of aggregate be provided.
Dust arrester installation comprises: air-introduced machine 21, air-introduced machine dust outlet side 25; The dust absorption edge of air-introduced machine 21 13 is communicated with through temporary bucket of pipeline 1 and the pipeline 2 23 that is provided with by-pass valve control 24 and stirring host 11 and aggregate respectively, and pipeline 2 23 is straight tube and the caliber caliber greater than pipeline 1; The dust arrester installation operation principle: when aggregate when stirring host 11 feeds intake, air-introduced machine 21 extracts dusty gas from stirring host 11, feed intake accomplish after; Delay a period of time is beaten pipeline two by-pass valve controls 24; Because pipeline two is that straight tube and caliber are bigger, air-introduced machine 21 will preferentially extract the gas in the temporary bucket 2 of aggregate, avoid stirring host 11 to be pumped into the metering that negative pressure causes influencing powder; Most important; The temporary bucket 13 of aggregate this moment is advancing aggregate, and air-introduced machine 21 can extract the dust of kicking up wherein, and the dust that air-introduced machine 21 extracts all passes through air-introduced machine dust outlet side 25 and discharges; When stirring host 11 dischargings, the inner negative pressure that produces, can open negative pressure valve 12 polishings that cover installation on it this moment, reaches air pressure balance.
Dust arrester comprises: the cylindrical shell 30 of band spraying area 31 and storage area 33 is provided with the nozzle 32 that haves three layers, every layer three arranged side by side in the spraying area 31; Except that last layer spout down, other spout all is provided with up, the height of storage area 33 is lower than the position of lowermost layer nozzle; Storage area 33 links to each other with nozzle 32 through storage area water supply pump 34; And the water source is provided to nozzle 32, in a further embodiment, the water of nozzle 32 also can directly be provided by external water source.The dust arrester operation principle: air-introduced machine dust outlet side 25 stretches in the cylindrical shell 30; And be positioned at top, 33 positions, storage area, nozzle 32 lowermost level below, in a further embodiment, air-introduced machine dust outlet side 25 can also directly stretch in the storage area 33; The dusty gas that air-introduced machine 21 extracts in the step of gathering dust is discharged from air-introduced machine dust outlet side 25; Dust outlet side 25 is 33 liquid level towards the storage area, and the part dust granules in the dusty gas gets into storage area 33, in the process that other part dusty gases up move; Storage area feedwater water pump 34 is 33 extraction water supply nozzles 32 from the storage area; Form the high-pressure fog that covers whole spraying area space, spraying further absorbs dust granules and drops into storage area 33, accomplishes dust removal step; For preventing the foreign matter blocking pipeline, the water inlet pipe end of water pump 34 is provided with screen pack 35.
Device for recovering powder comprises: water weighing hopper 41, by-pass valve control 42, be arranged on the liquid level gauge 43 in the storage area 33, the water in the by-pass valve control 42 control storage areas 33 gets in the water weighing hopper 41, and water weighing hopper 41 is communicated with stirring host 11 through pipeline.Dust reclaims principle: after dust removal step was accomplished, storage area 33 had absorbed amounts of dust, and open by-pass valve control 42 this moment, and water is unloaded to water weighing hopper 41 in storage area 33, and storage area 33 liquid levels descend, and liquid level gauge 43 produces signal, the moisturizing of control external water source; When liquid level returns to ordinary water level; Liquid level gauge 43 produces signals, and the control external water source stops moisturizing, and the water weighing hopper 41 measured water of falling into a trap unloads toward stirring host 11 through pipeline; As concrete batching, not only accomplished the water metering but also made the aggregate dust to make full use of.In a further embodiment, in order to reclaim dust, can cylindrical shell 30 directly be communicated with stirring host 11 through pipeline.
According to the announcement and the instruction of above-mentioned specification, those skilled in the art in the invention can also change and revise above-mentioned embodiment, and for example: spraying area 31 is designed to two relatively independent parts with storage area 33, and intermediate connection gets up to get final product.Therefore, the specific embodiment that discloses and describe above the present invention is not limited to also should fall in the protection domain of claim of the present invention modifications more of the present invention and change.In addition, although used some specific terms in this specification, these terms are explanation for ease just, the present invention is not constituted any restriction.
Claims (11)
1. spraying and dust-removing system; Comprise dust arrester installation; The dust absorption edge of said dust arrester installation is communicated with the dust generation device, it is characterized in that: also comprise dust arrester, said dust arrester comprises the cylindrical shell of being with spraying area; The dust outlet side of said dust arrester installation stretches in the said cylindrical shell, and is positioned at the below of said spraying area; Said cylindrical shell also comprises the storage area, and said storage area is positioned at said spraying area below.
2. spraying and dust-removing system as claimed in claim 1 is characterized in that: said spraying area is provided with two-layer and above nozzle.
3. spraying and dust-removing system as claimed in claim 2 is characterized in that: the spout of said top nozzle down, the spout of other layer nozzle is up.
4. spraying and dust-removing system as claimed in claim 1 is characterized in that: said dust arrester also comprises the storage area water supply pump, and it is communicated with said storage area with said spraying area, the water source is provided for said spraying area through said storage area.
5. like the said spraying and dust-removing system of the arbitrary claim of claim 1～4; It is characterized in that: said dust arrester installation is an air-introduced machine; Said dust generation device comprises stirring host, and the dust absorption edge of said air-introduced machine is communicated with said stirring host through pipeline one.
6. spraying and dust-removing system as claimed in claim 5; It is characterized in that: said dust generation device also comprises the temporary bucket of the aggregate that is communicated with said stirring host, and another dust absorption edge of said air-introduced machine is communicated with the temporary bucket of said aggregate through the pipeline two that is provided with by-pass valve control.
7. spraying and dust-removing system as claimed in claim 6 is characterized in that: the diameter of said pipeline two is greater than the diameter of said pipeline one.
8. spraying and dust-removing system as claimed in claim 7 is characterized in that: on the said stirring host negative pressure valve is installed.
9. spraying and dust-removing system as claimed in claim 5 is characterized in that: also comprise device for recovering powder, the one of which end is communicated with the lower end of said cylindrical shell, and the other end is communicated with said stirring host.
10. spraying and dust-removing system as claimed in claim 9 is characterized in that: said device for recovering powder is a water weighing hopper.
11. a concrete mixing plant, its spy just is: comprise the described spraying and dust-removing system of the arbitrary claim of claim 1～10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110087297A CN102229198B (en) | 2011-04-08 | 2011-04-08 | Spraying and dedusting system and concrete mixing plant with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110087297A CN102229198B (en) | 2011-04-08 | 2011-04-08 | Spraying and dedusting system and concrete mixing plant with same |
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| Publication Number | Publication Date |
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| CN102229198A CN102229198A (en) | 2011-11-02 |
| CN102229198B true CN102229198B (en) | 2012-09-26 |
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| CN201110087297A Active CN102229198B (en) | 2011-04-08 | 2011-04-08 | Spraying and dedusting system and concrete mixing plant with same |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072206A (en) * | 2011-12-31 | 2013-05-01 | 河北建设集团有限公司 | Controllable wetting and stirring device and method used for asphalt concrete mixing station dust |
| 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 |
| CN103706203A (en) * | 2013-12-04 | 2014-04-09 | 中联重科股份有限公司 | Dust collector and concrete preparation equipment of concrete preparation equipment |
| CN104689664B (en) * | 2015-02-17 | 2017-05-10 | 厦门美益集团有限公司 | Dust wastewater treatment method for green production of premixed concrete |
| CN106761648A (en) * | 2017-02-16 | 2017-05-31 | 三石油智能装备有限公司 | Pressure break mixing device, fracturing process, sand blender |
| CN113082904A (en) * | 2021-04-09 | 2021-07-09 | 浠水力宇混凝土有限公司 | Dust wastewater treatment method for green production of premixed concrete |
| CN115475802B (en) * | 2022-10-14 | 2024-04-26 | 赣州大业金属纤维有限公司 | Concrete mixing dust removal device and mixing method |
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| CN85104366A (en) * | 1984-02-20 | 1986-12-03 | 巴布考克日立株式会社 | Installation for wet-removal of sulphur from flue gas |
| CN88203740U (en) * | 1988-02-26 | 1988-11-30 | 何星 | High efficient wet dust cleaner |
| CN2262946Y (en) * | 1996-07-05 | 1997-09-24 | 广西南宁环境保护开发建设公司 | Magnetized water backspray dust remover for cement vertical kiln |
| CN2277296Y (en) * | 1997-01-30 | 1998-04-01 | 北京市市政工程机械公司 | High-efficiency wet-desulfurizing dust remover |
| CN2553893Y (en) * | 2002-06-21 | 2003-06-04 | 徐进 | Cyclone water spray electrostatic dust separator |
| CN200977444Y (en) * | 2006-08-29 | 2007-11-21 | 淄博大工机械有限公司 | Water cleaning dust removing device |
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2011
- 2011-04-08 CN CN201110087297A patent/CN102229198B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85104366A (en) * | 1984-02-20 | 1986-12-03 | 巴布考克日立株式会社 | Installation for wet-removal of sulphur from flue gas |
| CN88203740U (en) * | 1988-02-26 | 1988-11-30 | 何星 | High efficient wet dust cleaner |
| CN2262946Y (en) * | 1996-07-05 | 1997-09-24 | 广西南宁环境保护开发建设公司 | Magnetized water backspray dust remover for cement vertical kiln |
| CN2277296Y (en) * | 1997-01-30 | 1998-04-01 | 北京市市政工程机械公司 | High-efficiency wet-desulfurizing dust remover |
| CN2553893Y (en) * | 2002-06-21 | 2003-06-04 | 徐进 | Cyclone water spray electrostatic dust separator |
| CN200977444Y (en) * | 2006-08-29 | 2007-11-21 | 淄博大工机械有限公司 | Water cleaning dust removing device |
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| CN102229198A (en) | 2011-11-02 |
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