CN108177246A - A kind of appts. for transferring ready-mixed concrete - Google Patents
A kind of appts. for transferring ready-mixed concrete Download PDFInfo
- Publication number
- CN108177246A CN108177246A CN201711460469.3A CN201711460469A CN108177246A CN 108177246 A CN108177246 A CN 108177246A CN 201711460469 A CN201711460469 A CN 201711460469A CN 108177246 A CN108177246 A CN 108177246A
- Authority
- CN
- China
- Prior art keywords
- barrel
- appts
- driving motor
- mixed concrete
- blanking port
- 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
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
- B28C5/16—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
-
- 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
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0806—Details; Accessories
-
- 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
- B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
- B28C5/0875—Mixing in separate stages involving different containers for each stage
-
- 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
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/12—Supplying or proportioning liquid ingredients
- B28C7/126—Supply means, e.g. nozzles
-
- 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
- B28C7/162—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure
- B28C7/167—Discharge means, e.g. with intermediate storage of fresh concrete by means of conveyors, other than those comprising skips or containers, e.g. endless belts, screws, air under pressure by means of a screw conveyor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a kind of appts. for transferring ready-mixed concrete, including the first barrel, spiral conveyer structure and the second barrel, spiral conveying structure is provided at the top of first barrel, the spiral conveyer structure includes the second driving motor, retarder and conveying pipeline, retarder is provided between second driving motor and conveying pipeline, material receiving port is provided at the top of the conveying pipeline and bottom is provided with the second blanking port, the spiral conveyer structure bottom is connected with the second barrel, it is connected between the spiral conveyer structure and the second barrel by the second blanking port, the first driving motor is both provided at the top of first barrel and the second barrel and bottom is both provided with the first blanking port, the first driving motor side is provided with loading hopper, the first driving motor output shaft end is connected with stirring rod.The present invention can realize the long-haul reliable conveying of concrete, greatly reduce the possibility of conveyance conduit plugging.
Description
Technical field
The present invention relates to material transfer equipment technical field, more particularly to a kind of appts. for transferring ready-mixed concrete.
Background technology
Concrete is one of the present age main civil engineering material, it is by cementing material, and aggregate and water are by a certain percentage
It prepares, agitated molding of vibrating, the artificial stone conserved under certain condition, concrete has abundant raw material, and price is low
It is honest and clean, the characteristics of simple production process, thus make its dosage increasing;Concrete also has compression strength height, durability simultaneously
Good, strength grade range is wide, makes its use scope very extensive, is not only used in various civil engineerings, in shipbuilding industry, machinery
Industry, the exploitation of ocean, geothermal engineering etc., concrete is also important material.
After concrete stirring molding, designated position is transported to through concrete pump.During in order to shorten the solidification of concrete
Between, it is allowed to solidify as early as possible after construction location is reached, a kind of practices well is in concrete whipping process in the prior art
The additives such as accelerator are added in, make to be pumped again after stirring evenly together with additive and the other raw materials of concrete, due to rapid hardening
The action characteristic of the additives such as agent can produce bigger effect pumpability of concrete, and the pumping line of concrete cannot be too
Long, otherwise concrete is easy for solidifying, leads to pumping line plugging when sending out pumping line not yet.Therefore, the prior art
Middle concrete is difficult to realize long distance pumping, makes troubles to concrete construction, low construction efficiency, in addition, concrete pump passes through
If there is power failure or other failures in journey, concrete can be caused to be stuck in pump tubing length simultaneously quick solidification, be difficult to clean up out
Come, not only influence construction speed, but also engineering loss is big, be unfavorable for saving construction cost.
Therefore, it is necessary to solve the above problems to invent a kind of appts. for transferring ready-mixed concrete.
Invention content
The purpose of the present invention is to provide a kind of appts. for transferring ready-mixed concrete, to solve mentioned above in the background art ask
Topic.
To achieve the above object, the present invention provides following technical solution：A kind of appts. for transferring ready-mixed concrete, including the first material
Cylinder, spiral conveyer structure and the second barrel, the first barrel top are provided with spiral conveying structure, the spiral conveyer structure
Including the second driving motor, retarder and conveying pipeline, retarder is provided between second driving motor and conveying pipeline, it is described
Conveying pipeline is internally provided with conveying spiral, is provided with material receiving port at the top of the conveying pipeline and bottom is provided with the second blanking port,
The spiral conveyer structure bottom is connected with the second barrel, passes through the second blanking between the spiral conveyer structure and the second barrel
Mouth is connected, and is both provided with the first driving motor at the top of first barrel and the second barrel and bottom is both provided with first and falls
Material mouth, the first driving motor side are provided with loading hopper, and the first driving motor output shaft end is connected with stirring rod,
Described conveying pipeline one end is provided with connection sealing mechanism, and the second barrel inner cavity is provided with partition board, and the partition board is by the second material
Cylinder is divided into teeter chamber and surge chamber, and the surge chamber is arranged on teeter chamber bottom, the first driving electricity at the top of second barrel
Machine side is provided with water-supply-pipe, and the second barrel side is provided with additive tank, and the additive tank bottom is connected with infusion
Pipe, the infusion tube end are connected with ring pipe, and the partition board includes first partition and second partition, the first partition and the
Two partition board junctions are provided with first company's shaft, and connect shaft by first and be flexibly connected, and the first partition bottom is provided with
Cylinder, the second partition bottom are provided with second connecting rod, and the cylinder head portions are provided with piston rod, the piston rod and second
Connecting rod junction is provided with second company's shaft, and connects shaft by second and be flexibly connected.
Preferably, multigroup paddle is provided on the stirring rod, first connecting rod is provided between the paddle, it is described
First connecting rod is shaped to triangular prism shaped.
Preferably, the connection sealing mechanism includes connecting flange and sealing shroud, and the connecting flange side is provided with recessed
Slot, the sealing shroud side are provided with annular fixture block, the annular fixture block and fit depressions.
Preferably, the first control valve is provided on first blanking port, the second control is provided on second blanking port
Valve processed is provided with third control valve on the water-supply-pipe, the 4th control valve is provided on the woven hose.
Preferably, the surge chamber is internally provided with supporting rod, and baffle is provided on the supporting rod, is passed through on the baffle
It wears and is equipped with through-hole, the supporting rod is arranged on inside through-hole.
Preferably, the baffle top surface shape is set as arc-shaped.
Preferably, connecting tube is provided between the woven hose and ring pipe, and is connected by connecting tube.
Preferably, equidistantly it is provided with leakage hole on the ring pipe lateral wall and madial wall.
Preferably, flowmeter, the flowmeter and outside are both provided on second blanking port, water-supply-pipe and woven hose
Controller is electrically connected, and the flow meter model is ZXGY.
The technique effect and advantage of the present invention：
1st, cement dried feed is conveyed using spiral conveyer structure, then in the second barrel of feeding pipe end connection successively
The additives such as water and accelerator is added to be stirred for, the possibility of feeding pipe plugging can be substantially reduced；
2nd, it using connection sealing mechanism is set in the end of conveying pipeline, on the one hand can be leaked out to avoid material, it on the other hand can be with
Feeding pipe is lengthened according to practical conveying situation；
3rd, by setting arc-shaped baffle inside surge chamber, the mixed mud to fall on the one hand can be avoided to smash woven hose, it is another
Aspect can falling with guiding concrete；
4th, by the way that the connecting rod between paddle is arranged to triangular prism structure, paddle institute in whipping process can be greatly reduced
The resistance being subject to；
5th, by being both provided with flowmeter on the second blanking port, water-supply-pipe and woven hose, available for calculating the proportioning of each section
Amount, so that the effect of performance of concrete prestissimo is maximum.
Description of the drawings
Fig. 1 is the overall structure diagram of the present invention；
Fig. 2 is the connection sealing mechanism structure diagram of the present invention；
Fig. 3 is the partition board sectional view of the present invention；
Fig. 4 is the ring pipe sectional view of the present invention；
Fig. 5 is the first connecting rod sectional view of the present invention；
Fig. 6 is the baffle sectional view of the present invention；
In figure：1 first barrel, 2 spiral conveyer structures, 201 second driving motors, 202 retarders, 203 conveying pipelines, 204 splicings
Mouth, 205 second blanking ports, 206 second control valves, 3 second barrels, 301 teeter chambers, 302 surge chambers, 4 first driving motors, 5
First blanking port, 6 loading hoppers, 7 stirring rods, 8 first control valves, 9 connection sealing mechanisms, 901 connecting flanges, 902 grooves, 903
Sealing shroud, 904 annular fixture blocks, 10 partition boards, 11 water-supply-pipes, 12 third control valves, 13 supporting rods, 14 baffles, 15 additive tanks, 16
Woven hose, 17 ring pipes, 18 leakage holes, 19 the 4th control valves, 20 first connecting rods, 21 through-holes, 22 connecting tubes, 23 first partitions, 24
Second partition, 25 first connect shaft, 26 cylinders, 27 second connecting rods, 28 piston rods, 29 second company's shafts, 30 flowmeters.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment shall fall within the protection scope of the present invention.
A kind of appts. for transferring ready-mixed concrete according to Fig. 1 and 5 and 6, including the first barrel 1, spiral conveyer structure 2 and
Two barrels 3,1 top of the first barrel are provided with spiral conveying structure 2, and the spiral conveyer structure 2 includes the second driving electricity
Machine 201, retarder 202 and conveying pipeline 203 are provided with retarder 202 between second driving motor 201 and conveying pipeline 203,
The conveying pipeline 203 is internally provided with conveying spiral, and 203 top of conveying pipeline is provided with material receiving port 204 and bottom setting
There is the second blanking port 205,2 bottom of spiral conveyer structure is connected with the second barrel 3, the spiral conveyer structure 2 and second
It is connected between barrel 3 by the second blanking port 205,1 and second barrel of the first barrel, 3 top is both provided with the first driving
Motor 4 and bottom are both provided with the first blanking port 5, and 4 side of the first driving motor is provided with loading hopper 6, and described first
4 output shaft end of driving motor is connected with stirring rod 7, is provided with multigroup paddle on the stirring rod 7, between the paddle
First connecting rod 20 is provided with, to enhance stability of the paddle in whipping process, the first connecting rod 20 is shaped to three
It is prismatic, paddle resistance suffered in whipping process can be greatly reduced, described 203 one end of conveying pipeline is provided with connection
Sealing mechanism 9, convenient for being lengthened according to practical conveying situation to conveyance conduit, to realize the long-distance sand transport of concrete, institute
It states 3 inner cavity of the second barrel and is provided with partition board 10, the second barrel 3 is divided into teeter chamber 301 and surge chamber 302, institute by the partition board 10
It states surge chamber 302 and is arranged on 3012 bottom of teeter chamber, the surge chamber 302 is internally provided with supporting rod 13, to supporting baffle
14, baffle 14 is provided on the supporting rod 13, through-hole 21 is provided through on the baffle 14, the supporting rod 13 is arranged on
Inside through-hole 21,14 top surface shape of baffle is set as arc-shaped, and the mixed mud to fall on the one hand can be avoided to smash woven hose
16, on the other hand can falling with guiding concrete, 4 side of the first driving motor at second barrel, 3 top is provided with defeated
Water pipe 11,3 side of the second barrel are provided with additive tank 15, and 15 bottom of additive tank is connected with woven hose 16, institute
It states 16 end of woven hose and is connected with ring pipe 17, and be flexibly connected by second company's shaft 29, set on first blanking port 5
There is the first control valve 8, the second control valve 206 is provided on second blanking port 205, third is provided on the water-supply-pipe 11
Control valve 12 is provided with the 4th control valve 19 on the woven hose 16, and the break-make of the transmission process available for control material is described
Flowmeter 30 is both provided on second blanking port 205, water-supply-pipe 11 and woven hose 16, available for calculating the proportional quantity of each section,
So that the effect of performance of concrete prestissimo is maximum, the flowmeter 30 is electrically connected with peripheral control unit, the stream
30 model ZXGY of gauge.
Shown a kind of appts. for transferring ready-mixed concrete according to fig. 2, the connection sealing mechanism 9 include connecting flange 901 and close
Big envelope 903,901 side of the connecting flange setting fluted 902,903 side of sealing shroud is provided with annular fixture block 904,
The annular fixture block 904 is matched with groove 902, substantially increases the stability of connection sealing.
Shown a kind of appts. for transferring ready-mixed concrete according to fig. 3, the partition board 10 include first partition 23 and second partition 24,
The first partition 23 is provided with first company's shaft 25, and connect 25 activity of shaft even by first with 24 junction of second partition
It connects, 23 bottom of first partition is provided with cylinder 26, and 24 bottom of second partition is provided with second connecting rod 27, the cylinder
26 end sets have piston rod 28, and the piston rod 28 is provided with second company's shaft 29 with 27 junction of second connecting rod, to control
The break-make of 301 inner concrete of teeter chamber processed.
According to a kind of appts. for transferring ready-mixed concrete shown in Fig. 4, connection is provided between the woven hose 16 and ring pipe 17
Pipe 22, and be connected by connecting tube 22, leakage hole 18 is equidistantly provided on 17 lateral wall of ring pipe and madial wall, is used
In the additives such as injection accelerator into surge chamber 302.
Operation principle of the present invention：In use, cementing material and bone are added into the first barrel 1 by loading hopper 6
Then the dried feeds such as material control the first driving motor 4 of control and the second driving motor 201 to work by peripheral control unit, wherein,
First driving motor 4 drives stirring rod 7 to rotate, and is sufficiently mixed cement dried feed, it is to be mixed uniformly after, pass through external control
Device opens the first control valve 8 on the first blanking port 5, material is allowed to fall in conveying pipeline 203, then in the second driving motor
Under the action of 201, the conveying hurricane band animal material forwards transportation in conveying pipeline 203 makes material fall into from the second blanking port 205
In two barrels 3, secondary agitation then is carried out in the teeter chamber 301 in the second barrel 3, during secondary agitation is carried out,
The third control valve 12 on water-supply-pipe 11 is controlled to open by peripheral control unit, is allowed to be sufficiently mixed uniformly with cement dried feed,
It controls cylinder 26 that piston rod 28 is driven to shrink by peripheral control unit again, opens second partition 24, so as to which concrete be made to fall
It into surge chamber 302, is finally discharged by the first blanking port 5 of 3 bottom of the second barrel, before discharging, can be controlled by outside
The 4th control valve 19 on device control woven hose 16 is opened, and the additives such as accelerator is injected into surge chamber 302, convenient for mixed mud
It is quickly solidified after discharging, to accelerate construction progress, in entire concrete delivery service, the second blanking port 205,11 and of water-supply-pipe
The flowmeter 30 set on woven hose 16 can be used for calculating the proportional quantity of each section, so that the performance of concrete prestissimo is most
The effect of big, moreover, this conveying device can lengthen feeding pipe according to practical conveying situation, since feeding pipe is defeated
What is sent is dried material, it is possible to prevente effectively from the possibility of feeding pipe plugging.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify to the technical solution recorded in foregoing embodiments or carry out equivalent replacement to which part technical characteristic,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (9)
1. a kind of appts. for transferring ready-mixed concrete, including the first barrel（1）, spiral conveyer structure（2）With the second barrel（3）, feature
It is：First barrel（1）Top is provided with spiral conveying structure（2）, the spiral conveyer structure（2）Including the second driving
Motor（201）, retarder（202）And conveying pipeline（203）, second driving motor（201）With conveying pipeline（203）Between set
There is retarder（202）, the conveying pipeline（203）It is internally provided with conveying spiral, the conveying pipeline（203）Top is provided with splicing
Mouthful（204）And bottom is provided with the second blanking port（205）, the spiral conveyer structure（2）Bottom is connected with the second barrel
（3）, the spiral conveyer structure（2）With the second barrel（3）Between pass through the second blanking port（205）It is connected, first material
Cylinder（1）With the second barrel（3）Top is both provided with the first driving motor（4）And bottom is both provided with the first blanking port（5）, institute
State the first driving motor（4）Side is provided with loading hopper（6）, first driving motor（4）Output shaft end is connected with stirring
Bar（7）, the conveying pipeline（203）One end is provided with connection sealing mechanism（9）, second barrel（3）Inner cavity is provided with partition board
（10）, the partition board（10）By the second barrel（3）It is divided into teeter chamber（301）And surge chamber（302）, the surge chamber（302）If
It puts in teeter chamber（3012）Bottom, second barrel（3）First driving motor at top（4）Side is provided with water-supply-pipe
（11）, second barrel（3）Side is provided with additive tank（15）, the additive tank（15）Bottom is connected with woven hose
（16）, the woven hose（16）End is connected with ring pipe（17）, the partition board（10）Including first partition（23）With second every
Plate（24）, the first partition（23）With second partition（24）Junction is provided with first company's shaft（25）, and connect by first
Shaft（25）Flexible connection, the first partition（23）Bottom is provided with cylinder（26）, the second partition（24）Bottom is set
There is second connecting rod（27）, the cylinder（26）End set has piston rod（28）, the piston rod（28）With second connecting rod（27）
Junction is provided with second company's shaft（29）, and connect shaft by second（29）Flexible connection.
2. a kind of appts. for transferring ready-mixed concrete according to claim 1, it is characterised in that：The stirring rod（7）On be provided with
Multigroup paddle is provided with first connecting rod between the paddle（20）, the first connecting rod（20）It is shaped to triangular prism
Shape.
3. a kind of appts. for transferring ready-mixed concrete according to claim 1, it is characterised in that：The connection sealing mechanism（9）Packet
Include connecting flange（901）And sealing shroud（903）, the connecting flange（901）Side setting is fluted（902）, the sealing shroud
（903）Side is provided with annular fixture block（904）, the annular fixture block（904）With groove（902）It matches.
4. a kind of appts. for transferring ready-mixed concrete according to claim 1, it is characterised in that：First blanking port（5）On set
It is equipped with the first control valve（8）, second blanking port（205）On be provided with the second control valve（206）, the water-supply-pipe（11）On
It is provided with third control valve（12）, the woven hose（16）On be provided with the 4th control valve（19）.
5. a kind of appts. for transferring ready-mixed concrete according to claim 1, it is characterised in that：The surge chamber（302）Inside is set
It is equipped with supporting rod（13）, the supporting rod（13）On be provided with baffle（14）, the baffle（14）On be provided through through-hole
（21）, the supporting rod（13）It is arranged on through-hole（21）It is internal.
6. a kind of appts. for transferring ready-mixed concrete according to claim 5, it is characterised in that：The baffle（14）Top surface shape is set
It is set to arc-shaped.
7. a kind of appts. for transferring ready-mixed concrete according to claim 1, it is characterised in that：The woven hose（16）With ring pipe
（17）Between be provided with connecting tube（22）, and pass through connecting tube（22）It is connected.
8. a kind of appts. for transferring ready-mixed concrete according to claim 1, it is characterised in that：The ring pipe（17）Lateral wall with
Leakage hole is equidistantly provided on madial wall（18）.
9. a kind of appts. for transferring ready-mixed concrete according to claim 1, it is characterised in that：Second blanking port（205）, it is defeated
Water pipe（11）And woven hose（16）On be both provided with flowmeter（30）, the flowmeter（30）It is electrically connected with peripheral control unit,
The flowmeter（30）Model ZXGY.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460469.3A CN108177246A (en) | 2017-12-28 | 2017-12-28 | A kind of appts. for transferring ready-mixed concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711460469.3A CN108177246A (en) | 2017-12-28 | 2017-12-28 | A kind of appts. for transferring ready-mixed concrete |
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| Publication Number | Publication Date |
|---|---|
| CN108177246A true CN108177246A (en) | 2018-06-19 |
Family
ID=62548343
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711460469.3A Pending CN108177246A (en) | 2017-12-28 | 2017-12-28 | A kind of appts. for transferring ready-mixed concrete |
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| CN108726113A (en) * | 2018-08-20 | 2018-11-02 | 湖北科技学院 | A kind of screw-rod structure in concrete conveying system |
| CN112546935A (en) * | 2020-11-23 | 2021-03-26 | 湖州琦利智能装备科技有限公司 | Building site is with large-scale machinery compounding device |
| CN114633371A (en) * | 2022-03-11 | 2022-06-17 | 河南工程学院 | Subway shield constructs construction feeding device |
| CN114851385A (en) * | 2022-05-23 | 2022-08-05 | 三亚华盛新型建材有限公司 | Concrete mixing conveyor with automated inspection function |
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| CN114633371A (en) * | 2022-03-11 | 2022-06-17 | 河南工程学院 | Subway shield constructs construction feeding device |
| CN114851385A (en) * | 2022-05-23 | 2022-08-05 | 三亚华盛新型建材有限公司 | Concrete mixing conveyor with automated inspection function |
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Application publication date: 20180619 |
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