CN109571764A - Concrete matched truck and its control method - Google Patents
Concrete matched truck and its control method Download PDFInfo
- Publication number
- CN109571764A CN109571764A CN201811380691.7A CN201811380691A CN109571764A CN 109571764 A CN109571764 A CN 109571764A CN 201811380691 A CN201811380691 A CN 201811380691A CN 109571764 A CN109571764 A CN 109571764A
- Authority
- CN
- China
- Prior art keywords
- building stones
- feed bin
- connect
- bracket
- sand feed
- 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
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4206—Control apparatus; Drive systems, e.g. coupled to the vehicle drive-system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/42—Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport
- B28C5/4203—Details; Accessories
- B28C5/4234—Charge or discharge systems therefor
- B28C5/4237—Charging, e.g. hoppers
Abstract
Concrete matched truck and its control method, including load wagon (1)；The cement silo (2) being connect with load wagon (1)；Screw(-type) feeder (3)；Belt conveyor (4)；Building stones storehouse (6) and sand feed bin (7)；The building stones storehouse baiting valve (9) hinged with building stones storehouse (6)；First telescoping mechanism (10)；The sand feed bin baiting valve (12) hinged with sand feed bin (7)；Second telescoping mechanism (13)；First weighs sensing device (14)；Second weighs sensing device (15).The feeding coal of screw(-type) feeder (3) control cement silo (2) is simultaneously measured, first, which weighs sensing device (14), measures the feeding coal of building stones storehouse (6), second, which weighs sensing device (15), measures the feeding coal of sand feed bin (7), by the accurate metering to cement, building stones, sand material in blending process, the proportion of concrete can control.
Description
Technical field
The present invention relates to concrete machinery technical fields, more particularly, to a kind of concrete for realizing concrete automatic blending
Burden charging carriage；The invention further relates to a kind of control methods of concrete matched truck.
Background technique
Currently, in construction concrete work be it is unaided by different machinery, concrete batching is by bulk
Material (aggregate, cement, flyash, water, additive etc.) is by certain process more mixed than arranging.Concrete batching is by concrete
Proportioning machine is completed.
CN 202706563U discloses a kind of concrete general purpose car.Complete machine by traction mechanism, rack, water tank, cement bin,
Cement transportation spiral, stone storehouse, cement atomization bucket, Sha Cang, flow ingredient sector, continuously stirs mechanism, concrete at metering pump
Pump, injection apparatus etc. composition, traction mechanism, water tank, cement bin, cement transportation spiral, metering pump, stone storehouse, cement atomization bucket,
Sha Cang, flow ingredient sector continuously stir mechanism, concrete pump, injection apparatus all reasonable installations in same rack, make manually
Automatic blending, pressure are continuously stirred, are pumped, spraying, slip casting etc. is installed on one, easy to remove, from installation.When operation, shovel
Vehicle feeding, cement are continuously conveyed after entering cement bin by cement transportation spiral, and stone enters stone storehouse, and sand enters husky storehouse, water
Mud, stone, sand ingredient press flow measurement in flow ingredient sector, and into mechanism is continuously stirred, water enters continuous from water tank
Cement is atomized in cement atomization bucket when rabbling mechanism, the pressure for being continuously stirred mechanism continuously stirs, concrete mixture
Concrete pump uniformly is flowed out to, completing functions, the metering pumps such as pumping, injection, slip casting through injection equipment can be to concrete in injection
Accelerator metering.Auto-manual control can be achieved in ingredient, stirring, pumping, is also equipped with traction mechanism in rack, can belt wheel drag
Row can start operation after traction to construction site, and can be used alone can modularization assembling a tractor serves several purposes.
In the prior art, concrete batching device lacks mobile flexibility, and the degree of automation is not high in blending process.
Summary of the invention
In order to overcome the drawbacks of the prior art, it is flexible to provide a kind of transition by the present invention, it is easy to accomplish the coagulation of automatic blending
Native burden charging carriage and its control method.
In order to solve the above-mentioned technical problem, on the one hand, the present invention provides a kind of concrete matched truck, including load wagon；With
The cement silo of the load wagon connection；The screw(-type) feeder that feed inlet is connected to the discharge port of the cement silo；Accept institute
The discharge port supplied materials for stating screw(-type) feeder, the belt conveyor being connect with the load wagon；Bottom end is connect with the load wagon
Bracket；Discharge port is located at the top of the belt conveyor, the building stones storehouse connecting with the bracket and sand feed bin；It is hung by first
Ear and the hinged building stones storehouse baiting valve in building stones storehouse；Both ends respectively with hinged first flexible in building stones storehouse baiting valve and building stones storehouse
Mechanism；Pass through the second hangers and the hinged sand feed bin baiting valve of sand feed bin；Both ends respectively with the sand feed bin baiting valve and sand material
The second hinged telescoping mechanism of storehouse；First connect between building stones storehouse and bracket, with bracket weighs sensing device；It is located at
Second connect between sand feed bin and bracket, with bracket weighs sensing device.
As technical solution, concrete matched truck provided by the invention is further improved, first hangers passes through first
Free bearing is connect with building stones storehouse；Second hangers is connect by the second free bearing with sand feed bin.
As technical solution is further improved, concrete matched truck provided by the invention, building stones storehouse baiting valve, sand feed bin are put
Material valve all has arc skateboard, and building stones bin discharge port external, sand feed bin discharge hole all have the baffle being cooperatively connected with arc skateboard.
As technical solution is further improved, concrete matched truck provided by the invention also has several one end and branch
Frame is hinged, the shipping protector mechanism that the other end and building stones storehouse or sand feed bin are detachably connected；The shipping protector machine
Structure includes one end and the hinged threaded rod of bracket, and the holding nut and fastening nut connecting with threaded rod are arranged in the building stones
The card slot being caught on storehouse or sand feed bin for the threaded rod.
As technical solution is further improved, concrete matched truck provided by the invention also there is control described first to stretch
The controller that contracting mechanism, the second telescoping mechanism, belt conveyor and screw(-type) feeder are run；The display being connect with the controller
Operator control panel；Described first, which weighs sensing device and second, weighs the detection information input controller of sensing device.
In order to solve the above-mentioned technical problem, on the other hand, the present invention provides a kind of control method of concrete matched truck, institute
Stating concrete matched truck includes load wagon；The cement silo being connect with the load wagon；Feed inlet goes out with the cement silo
The screw(-type) feeder of material mouth connection；The discharge port supplied materials for accepting the screw(-type) feeder, the belt connecting with the load wagon are defeated
Send machine；The bracket that bottom end is connect with the load wagon；Discharge port is located at the top of the belt conveyor, connect with the bracket
Building stones storehouse and sand feed bin；Pass through the first hangers and the hinged building stones storehouse baiting valve in building stones storehouse；Both ends respectively with the building stones storehouse
The first telescoping mechanism of baiting valve and building stones storehouse hingedly；Pass through the second hangers and the hinged sand feed bin baiting valve of sand feed bin；Both ends
Second telescoping mechanism hinged with the sand feed bin baiting valve and sand feed bin respectively；Between building stones storehouse and bracket and bracket
The first of connection weighs sensing device；Second connect between sand feed bin and bracket, with bracket weighs sensing device；Control
The controller that first telescoping mechanism, the second telescoping mechanism, belt conveyor and screw(-type) feeder are run；With the controller
The display operation screen of connection；Described first, which weighs sensing device and second, weighs the detection information input control of sensing device
Device；In blending process the following steps are included:
Cement, building stones, sand material ratio and total weight are inputted or selected by display operation screen；Controller calculate cement,
The feeding coal of building stones, sand material；Controller controls belt conveyor booting, and controller controls screw(-type) feeder starting operation, control
Device controls the first telescoping mechanism and opens building stones storehouse baiting valve, and controller controls the second telescoping mechanism and opens sand feed bin baiting valve；Spiral shell
Controller control screw(-type) feeder is out of service when the cement quality of rotation batcher output reaches feeding coal；When the matter for releasing building stones
When amount reaches feeding coal, controller controls the first telescoping mechanism and closes building stones storehouse baiting valve；When release sand material quality reach to
When doses, controller control the second telescoping mechanism close sand feed bin baiting valve；Belt conveyor runs the material to conveyer belt
It unsnatches rear out of service.
In the absence of conflict, above-mentioned improved technology scheme can be implemented alone or in combination.
Technical solution provided by the invention, controller control the first telescoping mechanism and manipulate building stones storehouse baiting valve, controller control
The second telescoping mechanism manipulation sand feed bin baiting valve is made, the feeding coal of screw(-type) feeder control cement silo is simultaneously measured, first
It weighs sensing device to measure the feeding coal in building stones storehouse, the second weighing sensing device counts the feeding coal of sand feed bin
It measures, by the accurate metering to cement, building stones, sand material in blending process, can control the proportion of concrete, it is strong to reduce labour
Degree, improves the stability of concrete.Using onboard system, it is moved easily.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and is constituted part of this application, but is not constituted to this hair
Bright improper restriction.In the accompanying drawings:
Fig. 1 is the principle schematic diagram of embodiment concrete matched truck；
Fig. 2 is the local the main structure of the schematic diagram of embodiment concrete matched truck；
Fig. 3 is the sectional perspective principle schematic diagram of embodiment concrete matched truck；
Fig. 4 is the building stones storehouse of embodiment concrete matched truck and the principle schematic diagram of building stones storehouse baiting valve.
Specific embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawing.
Concrete matched truck as shown in Figure 1 to Figure 3, including load wagon 1, the cement silo 2 being connect with load wagon 1, into
The screw(-type) feeder 3 that material mouth is connected to the discharge port of cement silo 2 accepts the discharge port supplied materials and load wagon of screw(-type) feeder 3
The belt conveyor 4 of connection, the bracket 5 that bottom end is connect with load wagon 1, discharge port is located at the top of belt conveyor 4, with bracket
The building stones storehouses 6 of 5 connections and sand feed bin 7, by the first hangers 8 and the hinged building stones storehouse baiting valve 9 in building stones storehouse 6, both ends respectively with
The first telescoping mechanism 10 of building stones storehouse baiting valve 9 and building stones storehouse 6 hingedly passes through the second hangers 11 and the hinged sand material of sand feed bin 7
Storehouse baiting valve 12, both ends second telescoping mechanism 13 hinged with sand feed bin baiting valve 12 and sand feed bin 7 respectively, is located at building stones storehouse 6
First connect between bracket 5, with bracket 5 weighs sensing device 14, connects between sand feed bin 7 and bracket 5, with bracket 5
Second connect weighs sensing device 15.
Working principle: the first telescoping mechanism 10 manipulates building stones storehouse baiting valve 9, and the second telescoping mechanism 13 manipulates sand feed bin blowing
Valve 12, screw(-type) feeder 3 control the feeding coal of cement silo 2 and are measured, and first weighs sensing device 14 to building stones storehouse 6
Feeding coal is measured, and the second weighing sensing device 15 measures the feeding coal of sand feed bin 7, by water in blending process
The accurate metering of mud, building stones, sand material, can control the proportion of concrete.
Optionally, the first hangers 8 of technical solution provided by the invention, concrete matched truck passes through the first free bearing 16 and stone
Feed bin 6 connects；Second hangers 11 is connect by the second free bearing 17 with sand feed bin 7.
As shown in figure 4, optionally, the building stones storehouse baiting valve 9 of technical solution provided by the invention, concrete matched truck has
Arc skateboard, 6 discharge port of building stones storehouse have the baffle being cooperatively connected with arc skateboard.The arc skateboard concave surface direction of baiting valve 9
Two ends in building stones storehouse 6,6 discharge port of building stones storehouse have fan shape baffle.Using arc skateboard, on the one hand, arc skateboard is hung along first
The hinged shaft rotation that ear 8 is connect with building stones storehouse 6, can be slidably connected between arc skateboard and fan shape baffle or gap connects, in stone
When feed bin 6 is equipped with building stones, it is easy to open and close, reliability is higher；On the other hand, the area of arc skateboard can be made to compare discharge port
Greatly, and in indent being scattered for building stones can be reduced.Sand feed bin 7 and sand feed bin baiting valve 12 also structural principle having the same.
Optionally, technical solution provided by the invention, concrete matched truck also have several one end and bracket 5 hinged,
The shipping protector mechanism 18 that the other end and building stones storehouse 6 or sand feed bin 7 are detachably connected, shipping protector mechanism 18 include
One end and the hinged threaded rod of bracket 5, the holding nut and fastening nut connecting with threaded rod are located at building stones storehouse 6 or sand feed bin 7
On the card slot that is caught in for the threaded rod.
Optionally, technical solution provided by the invention, concrete matched truck also have the first telescoping mechanism 10, second of control
The controller that telescoping mechanism 13, belt conveyor 4 and screw(-type) feeder 3 are run；Display operation screen connected to the controller；First
It weighs sensing device 14 and second and weighs the detection information input controller of sensing device 15；It include following step in blending process
It is rapid: to input or select cement, building stones, sand material ratio and total weight by display operation screen；Controller calculates cement, stone
The feeding coal of material, sand material；Controller controls belt conveyor 4 and is switched on, and controller controls the starting operation of screw(-type) feeder 3, control
Device controls the first telescoping mechanism 10 and opens building stones storehouse baiting valve 9, and controller controls the second telescoping mechanism 13 and opens sand feed bin blowing
Valve 12；Controller control screw(-type) feeder 3 is out of service when the cement quality that screw(-type) feeder 3 exports reaches feeding coal；When putting
When the quality of building stones reaches feeding coal out, controller controls the first telescoping mechanism 10 and closes building stones storehouse baiting valve 9；When releasing sand material
Quality when reaching feeding coal, controller controls the second telescoping mechanism 13 and closes sand feed bin baiting valve 12；Belt conveyor 4 is run
Material on to conveyer belt is unsnatched rear out of service.
It is clear that the invention is not restricted to which the above preferred embodiment, can also limit in the claims in the present invention and specification
In spirit, the transformation and improvement of diversified forms are carried out, can solve same technical problem, and obtains expected technical effect, therefore
It does not repeat.Those skilled in the art can from present disclosure directly or all schemes for associating, if
Within the spirit that claim limits, protection scope of the present invention is also belonged to.
Claims (6)
1. a kind of concrete matched truck, which is characterized in that including load wagon (1)；The cement silo being connect with the load wagon (1)
(2)；The screw(-type) feeder (3) that feed inlet is connected to the discharge port of the cement silo (2)；Accept the screw(-type) feeder (3)
Discharge port supplied materials, the belt conveyor (4) that is connect with the load wagon；The bracket that bottom end is connect with the load wagon (1)
(5)；Discharge port is located at the top of the belt conveyor (4), the building stones storehouse (6) connecting with the bracket (5) and sand feed bin
(7)；Pass through the first hangers (8) and building stones storehouse (6) hinged building stones storehouse baiting valve (9)；Both ends respectively with building stones storehouse blowing
The first telescoping mechanism (10) of valve (9) and building stones storehouse (6) hingedly；Pass through the second hangers (11) and sand feed bin (7) hinged sand
Feed bin baiting valve (12)；Both ends second telescoping mechanism hinged with the sand feed bin baiting valve (12) and sand feed bin (7) respectively
(13)；First connect between building stones storehouse (6) and bracket (5), with bracket (5) weighs sensing device (14)；Positioned at sand material
Second connect between storehouse (7) and bracket (5), with bracket (5) weighs sensing device (15).
2. concrete matched truck according to claim 1, which is characterized in that first hangers (8) passes through the first free bearing
(16) it is connect with building stones storehouse (6)；Second hangers (11) is connect by the second free bearing (17) with sand feed bin (7).
3. concrete matched truck according to claim 1 or 2, which is characterized in that building stones storehouse baiting valve (9), sand feed bin are put
Material valve (12) all has arc skateboard, and building stones storehouse (6) discharge port, sand feed bin (7) discharge port, which all have to cooperate with arc skateboard, to be connected
The baffle connect.
4. concrete matched truck according to claim 1, which is characterized in that also have several one end and bracket (5) to cut with scissors
It connects, the shipping protector mechanism (18) that the other end and building stones storehouse (6) or sand feed bin (7) are detachably connected；The transport protection
Equipment mechanism (18) includes one end and bracket (5) hinged threaded rod, the holding nut and fastening nut connecting with threaded rod, if
Set the card slot being caught on the building stones storehouse (6) or sand feed bin (7) for the threaded rod.
5. concrete matched truck according to claim 1, which is characterized in that also have and control first telescoping mechanism
(10), the controller of the second telescoping mechanism (13), belt conveyor (4) and screw(-type) feeder (3) operation；Connect with the controller
The display operation screen connect；Described first, which weighs sensing device (14) and second, weighs the detection information input institute of sensing device (15)
State controller.
6. a kind of control method of concrete matched truck, which is characterized in that the concrete matched truck includes load wagon (1)；With
The cement silo (2) of load wagon (1) connection；The screw feeder that feed inlet is connected to the discharge port of the cement silo (2)
Machine (3)；The belt conveyor (4) accepting the discharge port supplied materials of the screw(-type) feeder (3), being connect with the load wagon；Bottom end
The bracket (5) being connect with the load wagon (1)；Discharge port is located at the top of the belt conveyor (4), with the bracket (5)
The building stones storehouse (6) of connection and sand feed bin (7)；Pass through the first hangers (8) and building stones storehouse (6) hinged building stones storehouse baiting valve (9)；Two
Hold the first telescoping mechanism (10) hinged with building stones storehouse baiting valve (9) and building stones storehouse (6) respectively；Pass through the second hangers (11)
The sand feed bin baiting valve (12) hinged with sand feed bin (7)；It is cut with scissors respectively with the sand feed bin baiting valve (12) and sand feed bin (7) at both ends
The second telescoping mechanism (13) connect；First connect between building stones storehouse (6) and bracket (5), with bracket (5) weighs induction dress
Set (14)；Second connect between sand feed bin (7) and bracket (5), with bracket (5) weighs sensing device (15)；Control institute
State the controller of the first telescoping mechanism (10), the second telescoping mechanism (13), belt conveyor (4) and screw(-type) feeder (3) operation；
The display operation screen being connect with the controller；Described first, which weighs sensing device (14) and second, weighs sensing device (15)
Detection information inputs the controller；In blending process the following steps are included:
Cement, building stones, sand material ratio and total weight are inputted or selected by display operation screen；Controller calculate cement,
The feeding coal of building stones, sand material；Controller controls belt conveyor (4) booting, and controller controls screw(-type) feeder (3) starting fortune
Row, controller control the first telescoping mechanism (10) and open building stones storehouse baiting valve (9), and controller control the second telescoping mechanism (13) is opened
Open sand feed bin baiting valve (12)；Controller control screw feeder when the cement quality of screw(-type) feeder (3) output reaches feeding coal
Machine (3) is out of service；When the quality for releasing building stones reaches feeding coal, controller control the first telescoping mechanism (10) closing building stones
Storehouse baiting valve (9)；When the quality for releasing sand material reaches feeding coal, controller control the second telescoping mechanism (13) closing sand feed bin
Baiting valve (12)；Belt conveyor (4) operation is unsnatched rear out of service to the material on conveyer belt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380691.7A CN109571764A (en) | 2018-11-20 | 2018-11-20 | Concrete matched truck and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811380691.7A CN109571764A (en) | 2018-11-20 | 2018-11-20 | Concrete matched truck and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109571764A true CN109571764A (en) | 2019-04-05 |
Family
ID=65923303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811380691.7A Pending CN109571764A (en) | 2018-11-20 | 2018-11-20 | Concrete matched truck and its control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109571764A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201284452Y (en) * | 2008-10-24 | 2009-08-05 | 秦皇岛通联重工有限公司 | Articulated mortar stirring and pouring vehicle |
| CN102029650A (en) * | 2010-11-01 | 2011-04-27 | 泉州市三隆重工实业有限公司 | Movable type concrete mixer |
| CN202706563U (en) * | 2012-05-15 | 2013-01-30 | 安阳市圆通建筑机械有限公司 | Universal concrete truck |
| CN105922438A (en) * | 2016-06-17 | 2016-09-07 | 佛山市联智新创科技有限公司 | Concrete integral production system |
| CN108115833A (en) * | 2016-06-17 | 2018-06-05 | 合肥图腾龙机械设计有限公司 | A kind of Multi-stage stirring formula concrete central mix plant |
-
2018
- 2018-11-20 CN CN201811380691.7A patent/CN109571764A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201284452Y (en) * | 2008-10-24 | 2009-08-05 | 秦皇岛通联重工有限公司 | Articulated mortar stirring and pouring vehicle |
| CN102029650A (en) * | 2010-11-01 | 2011-04-27 | 泉州市三隆重工实业有限公司 | Movable type concrete mixer |
| CN202706563U (en) * | 2012-05-15 | 2013-01-30 | 安阳市圆通建筑机械有限公司 | Universal concrete truck |
| CN105922438A (en) * | 2016-06-17 | 2016-09-07 | 佛山市联智新创科技有限公司 | Concrete integral production system |
| CN108115833A (en) * | 2016-06-17 | 2018-06-05 | 合肥图腾龙机械设计有限公司 | A kind of Multi-stage stirring formula concrete central mix plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109352821A (en) | Concrete batching, stirring, transportation system and its control method | |
| CN105881739B (en) | A kind of Multi-stage stirring formula concrete central mix plant | |
| CN208179962U (en) | Cement products aggregate automatic batching and mixing plant | |
| CN209552139U (en) | A kind of concrete feeding and agitating device | |
| CN107891523B (en) | A kind of more stirring pot type concrete producing devices | |
| US7645064B2 (en) | Continuous mixing and delivery machine for temporarily flowable solid materials | |
| CN109501008B (en) | Automatic metering and adding device for commercial concrete aggregate and operation method | |
| US5605397A (en) | System for mixing cement and aggregate | |
| CN207954306U (en) | A kind of self-driving type concrete stirring train | |
| KR101587064B1 (en) | United mixing and placing apparatus of fiber reinforced cement composite, and method for the same | |
| CN206264145U (en) | concrete batching device | |
| US2896771A (en) | Portable concrete batcher | |
| CN208037570U (en) | A kind of blending transportation feed mechanism of pipeline batch mixer | |
| CN205416002U (en) | Concrete mixing device | |
| EP0394785B1 (en) | Means and process for automatic coloring of concrete | |
| CN109571764A (en) | Concrete matched truck and its control method | |
| JP4460707B2 (en) | Method of washing and loading the mixer truck | |
| CN104179109B (en) | A kind of equipment producing asphalt and RA retinasphal compound | |
| US3101931A (en) | Portable batch concrete plant | |
| CN109571767B (en) | Concrete feeding, batching, agitating unit | |
| CN207972110U (en) | It is stirred suitable for gravity flowing levelling mortar and spreads the all-in-one machine starched | |
| US6843592B2 (en) | Asphalt additive mixing apparatus | |
| CN107218063A (en) | Subway tunnel concrete spraying equipment and process | |
| JP3193697B2 (en) | Short fibrous material pumping device and method for constructing slopes using short fibrous material pumping device | |
| CN209504546U (en) | Concrete stirring conveying device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |