CN108656361A - Concrete mixing plant - Google Patents
Concrete mixing plant Download PDFInfo
- Publication number
- CN108656361A CN108656361A CN201810388581.9A CN201810388581A CN108656361A CN 108656361 A CN108656361 A CN 108656361A CN 201810388581 A CN201810388581 A CN 201810388581A CN 108656361 A CN108656361 A CN 108656361A
- Authority
- CN
- China
- Prior art keywords
- concrete mixing
- water
- mixing plant
- stirring
- canopy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/02—General arrangement or layout of plant for producing mixtures of clay or cement with other materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0007—Pretreatment of the ingredients, e.g. by heating, sorting, grading, drying, disintegrating; Preventing generation of dust
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0046—Storage or weighing apparatus for supplying ingredients
- B28C7/0053—Storage containers, e.g. hoppers, silos, bins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/0046—Storage or weighing apparatus for supplying ingredients
- B28C7/0053—Storage containers, e.g. hoppers, silos, bins
- B28C7/0076—Parts or details thereof, e.g. opening, closing or unloading means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/16—Discharge means, e.g. with intermediate storage of fresh concrete
Landscapes
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The present invention relates to a kind of concrete mixing plants, major design main points are, including storage bin, teeter chamber and pipeline, pipeline extends in teeter chamber, the lower part of storage bin is provided with delivery pipe, and delivery pipe extends in teeter chamber, and teeter chamber lower part is provided with discharge port, concrete mixing plant further includes stirring canopy, and the teeter chamber and pipeline are respectively positioned in stirring canopy；Device for reducing dust is provided in the stirring canopy, stirring canopy construction is provided with rolling screen door in the side on ground, stirring canopy.The present invention has the advantages that protect concrete mixing plant ambient enviroment.
Description
Technical field
The present invention relates to concrete to stir field, more particularly to a kind of concrete mixing plant.
Background technology
Concrete mixing plant is mainly used for concrete works, and main function is to be stirred concrete, is also concrete mixing station.
Mixing plant by mixing plant needed for concrete aggregate and powder mixing after, concrete is moved to by concrete mixer truck and is applied
On the one hand the onsite application of work is made the proportioning of the aggregate and powder of standard by concrete mixing plant, makes concrete
On the other hand standardization carries out the addition of aggregate and powder in concrete mixing plant, reduces the environmental pollution of construction site.
Existing concrete mixing plant includes storage bin, pipeline and teeter chamber, and the powders objects such as cement are stored in storage bin,
The lower part of storage bin is provided with delivery pipe, and in powder carry to teeter chamber, pipeline conveys the aggregates such as sandstone into teeter chamber,
After powder and aggregate are stirred in teeter chamber, the discharge port outflow being arranged from teeter chamber's blanking, concrete mixer truck is going out
The mixture for the aggregate and powder that the lower section of material mouth is then flowed out from discharge port.
But such concrete mixing plant is exposed to outdoor, and the process in concrete mixer truck is being flowed out to from discharge port
Middle powder can drift in air, larger to the surrounding environment influence of concrete mixing plant.
Invention content
The purpose of the present invention is to provide a kind of concrete mixing plants, have protection concrete mixing plant ambient enviroment
Advantage.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of concrete mixing plant, including storage bin, teeter chamber and pipeline, pipeline extend in teeter chamber, storage bin
Lower part is provided with delivery pipe, and delivery pipe extends in teeter chamber, and teeter chamber lower part is provided with discharge port, and concrete mixing plant also wraps
Stirring canopy is included, the teeter chamber and pipeline are respectively positioned in stirring canopy；Device for reducing dust is provided in the stirring canopy, stirring canopy is built
On ground, the side for stirring canopy is provided with rolling screen door.
By using above-mentioned technical proposal, in use, by the way that teeter chamber and pipeline are arranged in stirring canopy, coagulation
Native trucd mixer is introduced into when the discharge port below teeter chamber connects powder and aggregate into stirring canopy, and powder is entering with aggregate
The dust generated during in concrete mixer truck is located in stirring canopy, by the way that the device for reducing dust in stirring canopy is arranged,
So that the dust inside stirring canopy is cleared up, to achieve the purpose that protect concrete mixing plant ambient enviroment, reduces coagulation
The dust that soil mixing station generates drifts in surrounding air.
The present invention is further arranged to：It is covered with protective cover along the pipeline.
By using above-mentioned technical proposal, by covered protective cover outside pipeline, and along the direction of pipeline, reach
The dust generated in the transmission process of aggregate also is located in protective cover, reduces drifting for dust.
The present invention is further arranged to：The device for reducing dust includes water pump, water-supply-pipe and distributive pipe, and distributive pipe is uniformly installed
At the top of stirring canopy, the water outlet and distributive pipe, the suction side of water pump of water-supply-pipe connection water pump are connected with cistern；Described point
Water injector is installed, water injector is used to the water in distributive pipe be sprayed onto in stirring canopy on water pipe.
By using above-mentioned technical proposal, water pump absorbs water out of cistern, and sends water in distributive pipe by water-supply-pipe,
Distributive pipe is distributed on the top of stirring canopy, sprays the moisture in distributive pipe by the water injector on distributive pipe, makes to stir
It mixes and forms water mist in canopy, make dust absorbing in water mist, and as water mist drops on ground, to achieve the purpose that depositing dust.
The present invention is further arranged to：The water injector includes the sprinkling blade of connecting tube and hollow-core construction, connecting tube
It is vertically arranged, the upper end of connecting tube is connected to distributive pipe, and the lower end of connecting tube is connected to sprinkling blade, and sprinkling blade has multiple weeks
To the lower end for being arranged in connecting tube；Water outlet is offered on the sprinkling blade.
It by using above-mentioned technical proposal, sprays and offers water outlet on blade, distributive pipe and spray are connected by connecting tube
Blade is spilt, water outlet is made to be connect with distributive pipe, and it is circumferentially uniformly distributed multiple to spray blade, and water injector is made uniformly to be sprayed in water spray
Go out, forms uniform water mist.
The present invention is further arranged to：The sprinkling blade is rotatably connected on the lower end of connecting tube, water outlet horizontally toward,
It is identical in the clockwise of the direction of connecting tube circumferential direction upper water-out mouth.
By using above-mentioned technical proposal, sprinkling blade is rotatably connected on the lower end of connecting tube, and water outlet is horizontal, goes out
The clockwise at the mouth of a river is identical, by the water that water outlet sprays there is recoil strength, sprinkling blade to be rotated in the lower end of connecting tube, from
And make water outlet also with sprinkling blade rotation, to further increase the water spray uniformity of water injector.
The present invention is further arranged to：It is provided with sewer on the lower ground of the stirring canopy, sewer extends to storage
Pond.
By using above-mentioned technical proposal, the water that water injector sprays is fallen to the ground, and is discharged in time simultaneously by sewer
It is recovered in cistern, on the one hand cleans ground, another aspect water is settled in cistern, is cleaned, and the wasting of resources is reduced.
The present invention is further arranged to：Check-out console is provided in the stirring canopy, the height of check-out console is higher than discharge port
Highly.
By using above-mentioned technical proposal, after connecing Wangue material and powder, concrete mixer truck reaches concrete mixer truck
The side of check-out console, staff observe the ratio of the aggregate and powder in concrete mixer truck on check-out console and mix shape
Condition avoids ratio difference is excessive mixing is caused to waste.
The present invention is further arranged to：It is provided with multiple light inlet windows at the top of the stirring canopy.
By using above-mentioned technical proposal, multiple light inlet windows of stirring ceiling portion setting can be given in stirring canopy and increase light
According to, improve stirring canopy inside brightness, and be arranged multiple light inlet windows can reduce stirring canopy ceiling weight.
The present invention is further arranged to：The light inlet window includes loophole and filling baggy fabric, and filling baggy fabric is made of transparent material,
Loophole is opened in the top of stirring canopy, and filling baggy fabric is extruded in after being filled with gas on the side wall of loophole.
By using above-mentioned technical proposal, by using transparent filling baggy fabric, it is extruded in after gas is filled in filling baggy fabric
The side wall of unthreaded hole prevents loophole from leaking to make it be mounted in loophole, and gas is filled in another aspect filling baggy fabric,
So the noise generated in stirring canopy passes to outdoor, and can consume noise by the deformation of filling baggy fabric to reduce noise
Energy, reduce indoor noise.
The present invention is further arranged to：It arches upwards the part that the filling baggy fabric is located at outside stirring ceiling.
By using above-mentioned technical proposal, filling baggy fabric top is arched, and in clan's rain in filling baggy fabric, rainwater can be fast
Speed slides from filling baggy fabric, prevents rainwater from being accumulated in filling baggy fabric.
In conclusion the invention has the advantages that：
1. by the way that teeter chamber and pipeline are arranged in stirring canopy, concrete mixer truck is from the discharging below teeter chamber
Mouth is introduced into when connecing powder and aggregate in stirring canopy, and powder is generated with aggregate during entering in concrete mixer truck
Dust be located at stirring canopy in, by be arranged stirring canopy in device for reducing dust, so that the dust inside stirring canopy is cleared up, from
And achieved the purpose that protect concrete mixing plant ambient enviroment, it reduces the dust that concrete mixing plant generates and drifts sky around
In gas；
2. sprinkling blade is rotatably connected on the lower end of connecting tube, and water outlet is horizontal, and the clockwise of water outlet is identical, leads to
The water for crossing water outlet ejection has recoil strength, and sprinkling blade is rotated in the lower end of connecting tube, to make water outlet also with sprinkling
Blade rotates, to further increase the water spray uniformity of water injector；
3. by using transparent filling baggy fabric, the side wall that loophole is extruded in after gas is filled in filling baggy fabric, to make its installation
It in loophole, prevents loophole from leaking, gas is filled in another aspect filling baggy fabric, so the noise generated in stirring canopy
By the deformation of filling baggy fabric, outdoor is passed to reduce noise, and the energy of noise can be consumed, reduce indoor noise.
Description of the drawings
Fig. 1 is the stereogram of concrete mixing plant；
Fig. 2 is the half sectional view of filling baggy fabric；
Fig. 3 is the concrete mixing plant stereogram for splitting protective cover done for the pipeline in displaying protective cover；
Fig. 4 is the sectional view in the directions Fig. 1 A-A；
Fig. 5 is the concrete mixing plant stereogram for omitting stirring canopy；
Fig. 6 is the stereogram for the concrete mixing plant partial structurtes done for displaying water injector.
In figure, 1, stirring canopy；11, rolling screen door；12, light inlet window；121, loophole；122, filling baggy fabric；2, teeter chamber；21、
Discharge port；3, pipeline；31, protective cover；4, storage bin；41, delivery pipe；5, check-out console；6, device for reducing dust；61, water pump；62、
Cistern；63, water-supply-pipe；64, distributive pipe；65, water injector；651, connecting tube；652, blade is sprayed；6521, water outlet；7、
Sewer.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.The identical reference numeral of wherein identical parts
It indicates.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to it is attached
Direction in Fig. 1, word " bottom surface " and " top surface ", "inner" and "outside" are referred respectively to towards or away from geometric center of specific component
Direction.
A kind of concrete mixing plant, with reference to figure 1, including stirring canopy 1, stirring canopy 1 is to build on ground, is stirring canopy 1
Side be provided with rolling screen door 11, for staff disengaging and concrete mixer truck entrance.It is arranged on the top of stirring canopy 1
Light inlet window 12, light inlet window 12 are used to extraneous illumination be mapped in stirring canopy 1, and light inlet window 12 includes loophole 121 and filling baggy fabric
122, loophole 121 is opened in the top of stirring canopy 1, and filling baggy fabric 122 is transparent material, and is filled with gas in filling baggy fabric 122
It is extruded in the side wall of loophole 121 after body, to make it be mounted in loophole 121, prevents loophole 121 from leaking, in conjunction with figure
2, filling baggy fabric 122 pushes up external part positioned at stirring canopy 1 and arches to form arc upwards, accelerates wandering for rainwater, prevents rainwater from filling out
It fills on bag 122 and overstocks, while multiple light inlet windows 12 are arranged to reduce the ceiling weight of stirring canopy 1, be filled in filling baggy fabric 122
Gas, so the noise generated in stirring canopy 1 passes to outdoor, and can by the deformation of filling baggy fabric 122 to reduce noise
The energy for consuming noise, reduces indoor noise.
It with reference to figure 3 and Fig. 4, stirs and is provided with teeter chamber 2 and pipeline 3 in canopy 1, pipeline 3 is extended in teeter chamber 2 and used
In the aggregates such as sandstone are added into teeter chamber 2, it is covered with protective cover 31 in pipeline 3 along pipeline 3, is conveyed in pipeline 3
When aggregate, the dust-like that protective cover 31 can prevent sandstone from generating drifts in stirring canopy 1, is provided in the side of teeter chamber 2
Storage bin 4, storage bin 4 is interior for storing the powders such as cement, the lower part of storage bin 4 is provided with delivery pipe 41, delivery pipe 41 is prolonged
It reaches in teeter chamber 2, so that aggregate is mixed in teeter chamber 2 with powder, the lower section of teeter chamber 2 is provided with discharge port 21, after mixing
Aggregate and powder flowed out from discharge port 21, mixing of the concrete mixer truck in the position of discharge port 21 then aggregate and powder
Object.
With reference to figure 5, check-out console 5 is additionally provided in stirring canopy 1, the height of check-out console 5 is higher than the height of discharge port 21, mixes
The side of check-out console 5, operator station's observable concrete on check-out console 5 are reached after mixer lorry access powder and aggregate
The powder and aggregate state of trucd mixer access, prevent the ratio of aggregate and powder insufficient, cause to waste.
With reference to figure 5 and Fig. 6, composite soil trucd mixer will produce a large amount of dust during being packed into powder with aggregate, because
This is provided with device for reducing dust 6 in stirring canopy 1, and device for reducing dust 6 includes water pump 61, cistern 62, water-supply-pipe 63,64 and of distributive pipe
The suction side of water injector 65, water pump 61 reaches in cistern 62, and from the interior water suction of cistern 62, water-supply-pipe 63 is mounted on water pump 61
Water outlet, and the one end of water-supply-pipe 63 far from water pump 61 is connected to distributive pipe 64, and distributive pipe 64 is mounted in stirring canopy 1,
Distributive pipe 64 is distributed on the top of stirring canopy 1, and water injector 65 is mounted on distributive pipe 64, and water injector 65, which is distributed in, entirely to be stirred
It mixes in canopy 1 and for spraying in the water in distributive pipe 64 to stirring canopy 1.
With reference to figure 6, water injector 65 includes connecting tube 651 and sprinkling blade 652, connecting tube 651 be vertically arranged and with
Distributive pipe 64 be connected to, sprinkling blade 652 have it is multiple be distributed on the circumferencial direction of connecting tube 651, sprinkling blade 652 be hollow knot
Structure, multiple sprinkling blades 652 are rotatably installed in the lower end of connecting tube 651, spray the water outlet for offering multiple levels on blade 652
Mouthfuls 6521, and water outlet 6521 is towards being counterclockwise or be clockwise, in water outflow out of water outlet 6521, water
Reaction force can push sprinkling blade 652 and be rotated in connecting tube 651, to which water can be fully sprayed in stirring canopy 1, reach
To the purpose of depositing dust.
With reference to figure 5, water injector 65 spills the water fallen to the ground and needs timely to be discharged, so the lower part in stirring canopy 1
Sewer 7 is offered on ground, sewer 7 each extends in cistern 62, after the water that water injector 65 sprays is fallen to the ground
It is flowed in cistern 62 by sewer 7 in time, and by the settlement action of cistern 62, water can obtain in cistern 62
Purification.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art
Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this
It is all protected by Patent Law in the right of invention.
Claims (10)
1. a kind of concrete mixing plant, including storage bin (4), teeter chamber (2) and pipeline (3), pipeline (3) extend to stirring
In room (2), the lower part of storage bin (4) is provided with delivery pipe (41), and delivery pipe (41) extends in teeter chamber (2), teeter chamber (2)
Lower part is provided with discharge port (21), it is characterised in that：Concrete mixing plant further includes stirring canopy (1), the teeter chamber (2) and defeated
Line sending (3) is respectively positioned in stirring canopy (1)；Device for reducing dust (6) is provided in the stirring canopy (1), stirring canopy (1) is built in ground
On, the side of stirring canopy (1) is provided with rolling screen door (11).
2. concrete mixing plant according to claim 1, it is characterised in that：It is covered with protection along the pipeline (3)
It covers (31).
3. concrete mixing plant according to claim 2, it is characterised in that：The device for reducing dust (6) include water pump (61),
Water-supply-pipe (63) and distributive pipe (64), the uniformly distributed top for being mounted on stirring canopy (1) of distributive pipe (64), water-supply-pipe (63) connect water pump
(61) water outlet and distributive pipe (64), the suction side of water pump (61) is connected with cistern (62)；Pacify on the distributive pipe (64)
Equipped with water injector (65), water injector (65) is used to the water in distributive pipe (64) be sprayed onto in stirring canopy (1).
4. concrete mixing plant according to claim 3, it is characterised in that：The water injector (65) includes connecting tube
(651) it is vertically arranged with the sprinkling blade of hollow-core construction (652), connecting tube (651), the upper end of connecting tube (651) and distributive pipe
(64) it is connected to, the lower end of connecting tube (651) is connected to sprinkling blade (652), and sprinkling blade (652) has multiple circumferential directions to be arranged in
The lower end of connecting tube (651)；Water outlet (6521) is offered on the sprinkling blade (652).
5. concrete mixing plant according to claim 4, it is characterised in that：The sprinkling blade (652) is rotatably connected on
The lower end of connecting tube (651), water outlet (6521) horizontally toward, in the direction of the circumferential upper water-out mouth (6521) of connecting tube (651)
Clockwise it is identical.
6. concrete mixing plant according to claim 5, it is characterised in that：It is set on the lower ground of the stirring canopy (1)
It is equipped with sewer (7), sewer (7) extends to cistern (62).
7. according to any concrete mixing plants of claim 1-6, it is characterised in that：It is provided in the stirring canopy (1)
Check-out console (5), the height of check-out console (5) are higher than the height of discharge port (21).
8. concrete mixing plant according to claim 7, it is characterised in that：It is provided at the top of the stirring canopy (1) more
A light inlet window (12).
9. concrete mixing plant according to claim 8, it is characterised in that：The light inlet window (12) includes loophole
(121) it is made of transparent material with filling baggy fabric (122), filling baggy fabric (122), loophole (121) is opened in the top of stirring canopy (1)
Portion, filling baggy fabric (122) are extruded in after being filled with gas on the side wall of loophole (121).
10. concrete mixing plant according to claim 9, it is characterised in that：The filling baggy fabric (122) is located at stirring canopy
(1) part outside top is arched upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810388581.9A CN108656361A (en) | 2018-04-26 | 2018-04-26 | Concrete mixing plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810388581.9A CN108656361A (en) | 2018-04-26 | 2018-04-26 | Concrete mixing plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108656361A true CN108656361A (en) | 2018-10-16 |
Family
ID=63781198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810388581.9A Pending CN108656361A (en) | 2018-04-26 | 2018-04-26 | Concrete mixing plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108656361A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587821A (en) * | 2019-09-11 | 2019-12-20 | 江苏元大建筑科技有限公司 | A two-way four export concrete mixing plant for producing PC component |
| CN111790227A (en) * | 2020-07-16 | 2020-10-20 | 福州市鸿生建材有限公司 | Environment-friendly regeneration system of mixing plant |
| CN114541836A (en) * | 2022-01-27 | 2022-05-27 | 北京中实上庄混凝土有限责任公司 | Closed concrete mixing plant |
Citations (4)
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| US2112326A (en) * | 1936-04-30 | 1938-03-29 | Hetherington & Berner Inc | Portable asphalt mixing plant |
| CN101712184A (en) * | 2009-12-10 | 2010-05-26 | 桑建中 | Dustless concrete mixing plant |
| CN203076117U (en) * | 2013-01-23 | 2013-07-24 | 王孝山 | Rotating irrigation device |
| CN105568822A (en) * | 2015-12-16 | 2016-05-11 | 湖南三一路面机械有限公司 | Spray dust suppression system and asphalt mixing plant |
-
2018
- 2018-04-26 CN CN201810388581.9A patent/CN108656361A/en active Pending
Patent Citations (4)
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|---|---|---|---|---|
| US2112326A (en) * | 1936-04-30 | 1938-03-29 | Hetherington & Berner Inc | Portable asphalt mixing plant |
| CN101712184A (en) * | 2009-12-10 | 2010-05-26 | 桑建中 | Dustless concrete mixing plant |
| CN203076117U (en) * | 2013-01-23 | 2013-07-24 | 王孝山 | Rotating irrigation device |
| CN105568822A (en) * | 2015-12-16 | 2016-05-11 | 湖南三一路面机械有限公司 | Spray dust suppression system and asphalt mixing plant |
Non-Patent Citations (2)
| Title |
|---|
| 吴清 等: ""ETFE膜面材料与气袋膜在屋面工程中的应用"", 《第15届全国结构工程学术会议》 * |
| 朱红兴 等: "《高速公路施工标准化管理手册》", 31 July 2016, 西南交通大学出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110587821A (en) * | 2019-09-11 | 2019-12-20 | 江苏元大建筑科技有限公司 | A two-way four export concrete mixing plant for producing PC component |
| CN111790227A (en) * | 2020-07-16 | 2020-10-20 | 福州市鸿生建材有限公司 | Environment-friendly regeneration system of mixing plant |
| CN114541836A (en) * | 2022-01-27 | 2022-05-27 | 北京中实上庄混凝土有限责任公司 | Closed concrete mixing plant |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181016 |
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| RJ01 | Rejection of invention patent application after publication |