CN104924462A - Efficient concrete mixer with water capable of being added automatically - Google Patents

Efficient concrete mixer with water capable of being added automatically Download PDF

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Publication number
CN104924462A
CN104924462A CN201510339105.4A CN201510339105A CN104924462A CN 104924462 A CN104924462 A CN 104924462A CN 201510339105 A CN201510339105 A CN 201510339105A CN 104924462 A CN104924462 A CN 104924462A
Authority
CN
China
Prior art keywords
stirring
mixing drum
concrete
water
mixer
Prior art date
Application number
CN201510339105.4A
Other languages
Chinese (zh)
Inventor
苏晓玲
Original Assignee
苏晓玲
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 苏晓玲 filed Critical 苏晓玲
Priority to CN201510339105.4A priority Critical patent/CN104924462A/en
Publication of CN104924462A publication Critical patent/CN104924462A/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02Cleaning by the force of jets or sprays
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus 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
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing 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
    • B28C5/16Mixing 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling 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
    • B28C7/04Supplying or proportioning the ingredients
    • B28C7/12Supplying or proportioning liquid ingredients
    • B28C7/126Supply means, e.g. nozzles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00Controlling 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
    • B28C7/16Discharge means, e.g. with intermediate storage of fresh concrete
    • B28C7/162Discharge 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
    • B28C7/167Discharge 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

Abstract

The invention discloses an efficient concrete mixer with water capable of being added automatically. The efficient concrete mixer comprises a mixing drum, a screw conveying drum and spray heads. A feeding funnel is arranged at the left end of the upper side of the mixing drum, a stirring rotating shaft is vertically arranged at the axis of the inside of the mixing drum, stirring blades are arranged on the outer wall of the middle section of the stirring rotating shaft in a left-right symmetrical mode, and the bottom of the stirring rotating shaft is connected with a stirring plate. According to the concrete mixer with water capable of being added automatically, the stirring blades, the stirring plate and stirring wheels are used for stirring concrete in the horizontal direction and the vertical direction at the same time, a hydraulic cylinder is used for driving a mixing mechanism to move up and down for stirring, hence, the stirring effect and working efficiency of the mixer are greatly improved, and the concrete quality is guaranteed; moreover, automatic discharging is achieved through a screw conveying mechanism, the concrete can be stirred continuously in the discharging process, and the working efficiency of the mixer is improved; in addition, noise of the mixer in the working process is small, and automatic water adding and cleaning can be achieved.

Description

A kind of can the high-effective concrete mixer of automatic watering
Technical field
The present invention relates to a kind of building machinery, specifically a kind of can the high-effective concrete mixer of automatic watering.
Background technology
Construction needs often use concrete, the topmost equipment of fabrication of concrete is exactly concrete mixer, and concrete mixer is the plant equipment saying that concrete material and water are fully uniformly mixed with certain proportion.All there is the problem that mixing effect is bad, operating efficiency is not high in general concrete mixer, the demand of modern architecture construction can not be met, and concrete mixer can produce larger noise in the course of the work, on the impact that the working environment of operative employee produces, concrete mixer general in addition all can not realize self-emptying, need manual operation, impact is created on the operating efficiency of mixer and the efficiency of construction.
Summary of the invention
The object of the present invention is to provide a kind of can the high-effective concrete mixer of automatic watering, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technical scheme:
Can the high-effective concrete mixer of automatic watering, comprise mixing drum, enter funnel, stirring shaft, stirring vane, agitating plate, drive unit, connecting rod, stirring wheel, electric rotating machine, silencer cover, support bar, elevating lever, hydraulic cylinder, electromagnetic valve, helical feed cylinder, conveying rotating shaft, helical blade, drive motors, water inlet pipe, shower nozzle, water storage box and suction pump, on the upside of described mixing drum, left end is provided with into funnel, mixing drum internal axis place is vertically provided with stirring shaft, on the outer wall of stirring shaft stage casing, left and right is arranged with stirring vane, agitating plate is connected with bottom stirring shaft, hypotenuse on the downside of agitating plate parallels with the hypotenuse of mixing drum bottom section, mixing drum left and right sides inwall is all provided with drive unit, drive unit outer wall water connects stirring wheel by connecting rod, stirring shaft top to be stretched out outside mixing drum and is connected with electric rotating machine, silencer cover is provided with outside electric rotating machine, horizontally disposed support bar is connected on the upside of silencer cover, support bar right-hand member is fixedly connected with elevating lever, the hydraulic cylinder that elevating lever bottom is fastened in mixing drum outer right wall connects, described mixing drum bottom is provided with electromagnetic valve, the discharging opening of mixing drum bottom is connected with the charging aperture of the helical feed cylinder be arranged on the downside of mixing drum, helical feed cylinder internal axis place level is provided with conveying rotating shaft, conveying rotating shaft is provided with helical blade, conveying rotating shaft left end is connected with drive motors, also silencer cover is provided with outside drive motors, described mixing drum upper inside level is provided with water inlet pipe, on the downside of water inlet pipe, outer wall is provided with shower nozzle, water inlet pipe left end is connected with the water storage box be fixed on the left of mixing drum on outer wall, water inlet pipe is also provided with suction pump.
As the further scheme of the present invention: be in the shape of the letter V bottom described mixing drum.
As the further scheme of the present invention: it is three right that described stirring vane has.
As the further scheme of the present invention: described each drive unit is provided with up and down seven stirring wheels.
As the further scheme of the present invention: described water inlet pipe is L shape water pipe.
As the present invention's further scheme: described nozzle right is evenly provided with five.
Compared with prior art, the invention has the beneficial effects as follows: concrete material enters in mixing drum by entering funnel, electric rotating machine drives stirring shaft to rotate, stirring vane and agitating plate carry out the stirring in horizontal direction jointly to the concrete of inside, the stirring on vertical direction is carried out in the rotation of the stirring wheel of drive unit drive simultaneously to concrete, improve the operating efficiency of mixing effect and mixer greatly, silencer cover effectively reduces noise during machine operation, improve the working environment of operative employee, hydraulic cylinder drives and drives stirring shaft lifting by elevating lever, stirring vane and agitating plate are moved up and down stir concrete, further improve mixing effect and efficiency, ensure that concrete quality, after stirring terminates, electromagnetic valve is opened concrete and is entered in helical feed cylinder, drive motors drives conveying axis of rotation, helical blade rotates conveying of being turned right by material on the one hand and achieves self-emptying, improve operating efficiency, can proceed to stir to concrete on the other hand, ensure that the concrete quality after discharging, during mixer work, suction pump carries out mix and blend by being sprayed by shower nozzle in the water suction water inlet pipe in water storage box with concrete material, achieves automatic watering, after stirring terminates, the water sprayed in shower nozzle can clean mixer inside, and without the need to manual operation, and cleaning performance is good.
Accompanying drawing explanation
Fig. 1 is can the structural representation of high-effective concrete mixer of automatic watering.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1, in the embodiment of the present invention, a kind of can the high-effective concrete mixer of automatic watering, comprise mixing drum 1, enter funnel 2, stirring shaft 3, stirring vane 4, agitating plate 5, drive unit 6, connecting rod 7, stirring wheel 8, electric rotating machine 9, silencer cover 10, support bar 11, elevating lever 12, hydraulic cylinder 13, electromagnetic valve 14, helical feed cylinder 15, conveying rotating shaft 16, helical blade 17, drive motors 18, water inlet pipe 19, shower nozzle 20, water storage box 21 and suction pump 22, on the upside of described mixing drum 1, left end is provided with into funnel 2, be in the shape of the letter V bottom described mixing drum 1, mixing drum 1 internal axis place is vertically provided with stirring shaft 3, on the outer wall of stirring shaft 3 stage casing, left and right is arranged with stirring vane 4, it is three right that described stirring vane 4 has, agitating plate 5 is connected with bottom stirring shaft 3, hypotenuse on the downside of agitating plate 5 parallels with the hypotenuse of mixing drum 1 bottom section, mixing drum 1 left and right sides inwall is all provided with drive unit 6, drive unit 6 outer wall water connects stirring wheel 8 by connecting rod 7, described each drive unit 6 is provided with up and down seven stirring wheels 8, stirring shaft 3 top to be stretched out outside mixing drum 1 and is connected with electric rotating machine 9, silencer cover 10 is provided with outside electric rotating machine 9, horizontally disposed support bar 11 is connected on the upside of silencer cover 10, support bar 11 right-hand member is fixedly connected with elevating lever 12, the hydraulic cylinder 13 that elevating lever 12 bottom is fastened in mixing drum 1 outer right wall connects, concrete material enters in mixing drum 1 by entering funnel 2, electric rotating machine 9 drives stirring shaft 3 to rotate, stirring vane 4 and the common stirring concrete of inside carried out in horizontal direction of agitating plate 5, simultaneously drive unit 6 drives stirring wheel 8 to rotate to carry out concrete the stirring on vertical direction, improve the operating efficiency of mixing effect and mixer greatly, silencer cover 10 effectively reduces noise during machine operation, improve the working environment of operative employee, hydraulic cylinder 13 drives and drives stirring shaft 3 to be elevated by elevating lever 12, stirring vane 4 and agitating plate 5 are moved up and down stir concrete, further improve mixing effect and efficiency, ensure that concrete quality, described mixing drum 1 bottom is provided with electromagnetic valve 14, the discharging opening of mixing drum 1 bottom is connected with the charging aperture of the helical feed cylinder 15 be arranged on the downside of mixing drum 1, helical feed cylinder 15 internal axis place level is provided with conveying rotating shaft 16, conveying rotating shaft 16 is provided with helical blade 17, conveying rotating shaft 16 left end is connected with drive motors 18, also silencer cover 10 is provided with outside drive motors 18, after stirring terminates, electromagnetic valve 14 is opened concrete and is entered in helical feed cylinder 15, drive motors 18 drives conveying rotating shaft 16 to rotate, helical blade 17 rotates conveying of being turned right by material on the one hand and achieves self-emptying, improve operating efficiency, can proceed to stir to concrete on the other hand, ensure that the concrete quality after discharging, described mixing drum 1 upper inside level is provided with water inlet pipe 19, described water inlet pipe 19 is L shape water pipe, on the downside of water inlet pipe 19, outer wall is provided with shower nozzle 20, described shower nozzle about 20 is evenly provided with five, water inlet pipe 19 left end is connected with the water storage box 21 be fixed on the left of mixing drum 1 on outer wall, water inlet pipe 19 is also provided with suction pump 22, during mixer work, suction pump 22 carries out mix and blend by being sprayed by shower nozzle 20 in the water suction water inlet pipe 19 in water storage box 21 with concrete material, achieve automatic watering, after stirring terminates, in shower nozzle 20, the water of ejection can clean mixer inside, without the need to manual operation, and cleaning performance is good.The present invention can the concrete mixer of automatic watering, adopt stirring vane, stir while agitating plate and stirring wheel carry out on horizontal direction and vertical direction to concrete, and adopt hydraulic cylinder to drive rabbling mechanism to move up and down and stir, improve mixing effect and the operating efficiency of mixer greatly, ensure that concrete quality, and adopt bolt conveying mechanism to achieve self-emptying, and proceed to stir to concrete in discharging process, improve the operating efficiency of mixer, in the mixer course of work, noise is little in addition, and automatic watering and cleaning can be realized.
Operation principle of the present invention is: concrete material enters in mixing drum 1 by entering funnel 2, electric rotating machine 9 drives stirring shaft 3 to rotate, stirring vane 4 and the common stirring concrete of inside carried out in horizontal direction of agitating plate 5, simultaneously drive unit 6 drives stirring wheel 8 to rotate to carry out concrete the stirring on vertical direction, improve the operating efficiency of mixing effect and mixer greatly, silencer cover 10 effectively reduces noise during machine operation, improve the working environment of operative employee, hydraulic cylinder 13 drives and drives stirring shaft 3 to be elevated by elevating lever 12, stirring vane 4 and agitating plate 5 are moved up and down stir concrete, further improve mixing effect and efficiency, ensure that concrete quality, after stirring terminates, electromagnetic valve 14 is opened concrete and is entered in helical feed cylinder 15, drive motors 18 drives conveying rotating shaft 16 to rotate, helical blade 17 rotates conveying of being turned right by material on the one hand and achieves self-emptying, improve operating efficiency, can proceed to stir to concrete on the other hand, ensure that the concrete quality after discharging, during mixer work, suction pump 22 carries out mix and blend by being sprayed by shower nozzle 20 in the water suction water inlet pipe 19 in water storage box 21 with concrete material, achieve automatic watering, after stirring terminates, in shower nozzle 20, the water of ejection can clean mixer inside, without the need to manual operation, and cleaning performance is good.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this description is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of description is only for clarity sake, those skilled in the art should by description integrally, and the technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.

Claims (6)

1. can the high-effective concrete mixer of automatic watering, comprise mixing drum, enter funnel, stirring shaft, stirring vane, agitating plate, drive unit, connecting rod, stirring wheel, electric rotating machine, silencer cover, support bar, elevating lever, hydraulic cylinder, electromagnetic valve, helical feed cylinder, conveying rotating shaft, helical blade, drive motors, water inlet pipe, shower nozzle, water storage box and suction pump, it is characterized in that, on the upside of described mixing drum, left end is provided with into funnel, mixing drum internal axis place is vertically provided with stirring shaft, on the outer wall of stirring shaft stage casing, left and right is arranged with stirring vane, agitating plate is connected with bottom stirring shaft, hypotenuse on the downside of agitating plate parallels with the hypotenuse of mixing drum bottom section, mixing drum left and right sides inwall is all provided with drive unit, drive unit outer wall water connects stirring wheel by connecting rod, stirring shaft top to be stretched out outside mixing drum and is connected with electric rotating machine, silencer cover is provided with outside electric rotating machine, horizontally disposed support bar is connected on the upside of silencer cover, support bar right-hand member is fixedly connected with elevating lever, the hydraulic cylinder that elevating lever bottom is fastened in mixing drum outer right wall connects, described mixing drum bottom is provided with electromagnetic valve, the discharging opening of mixing drum bottom is connected with the charging aperture of the helical feed cylinder be arranged on the downside of mixing drum, helical feed cylinder internal axis place level is provided with conveying rotating shaft, conveying rotating shaft is provided with helical blade, conveying rotating shaft left end is connected with drive motors, also silencer cover is provided with outside drive motors, described mixing drum upper inside level is provided with water inlet pipe, on the downside of water inlet pipe, outer wall is provided with shower nozzle, water inlet pipe left end is connected with the water storage box be fixed on the left of mixing drum on outer wall, water inlet pipe is also provided with suction pump.
2. according to claim 1 can the high-effective concrete mixer of automatic watering, it is characterized in that, be in the shape of the letter V bottom described mixing drum.
3. according to claim 1 can the high-effective concrete mixer of automatic watering, it is characterized in that, it is three right that described stirring vane has.
4. according to claim 1 can the high-effective concrete mixer of automatic watering, it is characterized in that, described each drive unit is provided with up and down seven stirring wheels.
5. according to claim 1 can the high-effective concrete mixer of automatic watering, it is characterized in that, described water inlet pipe is L shape water pipe.
6. according to claim 1 can the high-effective concrete mixer of automatic watering, it is characterized in that, described nozzle right is evenly provided with five.
CN201510339105.4A 2015-06-18 2015-06-18 Efficient concrete mixer with water capable of being added automatically CN104924462A (en)

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Application Number Priority Date Filing Date Title
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Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105235066A (en) * 2015-11-16 2016-01-13 徐海恩 Anti-sticking synchronous stirring machine for construction
CN105522650A (en) * 2015-12-02 2016-04-27 李柳晶 Small concrete mixer
CN105952158A (en) * 2016-06-17 2016-09-21 佛山市联智新创科技有限公司 Cast-in-place device for concrete outer wall
CN105971285A (en) * 2016-06-17 2016-09-28 佛山市联智新创科技有限公司 Concrete stirring and pouring device
CN107198985A (en) * 2017-07-13 2017-09-26 衡阳屹顺化工有限公司 A kind of batch mixing mixer for chemical industry
CN107901236A (en) * 2017-11-10 2018-04-13 季元吉 A kind of spherical drum-type mortar stirring device
CN108755367A (en) * 2018-06-01 2018-11-06 张磊 A kind of municipal administration anti-clogging cement road ground repair apparatus
CN109109171A (en) * 2018-09-20 2019-01-01 温国雄 A kind of architectural engineering mixing stirring device
CN109227948A (en) * 2018-10-29 2019-01-18 湖北恒福节能科技有限公司 A kind of mixed method of dry-mixed mortar formula material
CN109281244A (en) * 2018-11-06 2019-01-29 史振荣 A kind of highway engineering construction pavement patching device
CN109397539A (en) * 2018-10-29 2019-03-01 湖北恒福节能科技有限公司 A kind of open manufacture system of masonry mortar
CN109397540A (en) * 2018-10-29 2019-03-01 湖北恒福节能科技有限公司 A kind of feature of environmental protection preparation method of common dry-mixed mortar
CN109397533A (en) * 2018-10-29 2019-03-01 湖北恒福节能科技有限公司 A kind of manufacturing method of common dry-mixed mortar
CN109435068A (en) * 2018-10-29 2019-03-08 湖北恒福节能科技有限公司 A kind of high efficient production technique of masonry mortar
CN109435069A (en) * 2018-10-29 2019-03-08 湖北恒福节能科技有限公司 A kind of self raising flour dirt production system of common dry-mixed mortar
CN109483730A (en) * 2018-10-29 2019-03-19 湖北恒福节能科技有限公司 A kind of recyclability production technology of dry-mixed mortar
CN109531815A (en) * 2018-10-29 2019-03-29 湖北恒福节能科技有限公司 A kind of hybrid technique of dry-mixed mortar
CN109531816A (en) * 2018-10-29 2019-03-29 湖北恒福节能科技有限公司 A kind of generating means of dry-mixed mortar
CN109552830A (en) * 2018-10-29 2019-04-02 湖北恒福节能科技有限公司 A kind of pipelining equipment producing common dry-mixed mortar
CN109605576A (en) * 2018-10-29 2019-04-12 湖北恒福节能科技有限公司 The conveying and stirring system of a kind of dry-mixed mortar with sand material
CN110004809A (en) * 2019-04-24 2019-07-12 卢光再 A kind of road engineering pavement patching device

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105235066A (en) * 2015-11-16 2016-01-13 徐海恩 Anti-sticking synchronous stirring machine for construction
CN105522650A (en) * 2015-12-02 2016-04-27 李柳晶 Small concrete mixer
CN105952158A (en) * 2016-06-17 2016-09-21 佛山市联智新创科技有限公司 Cast-in-place device for concrete outer wall
CN105971285A (en) * 2016-06-17 2016-09-28 佛山市联智新创科技有限公司 Concrete stirring and pouring device
CN107198985A (en) * 2017-07-13 2017-09-26 衡阳屹顺化工有限公司 A kind of batch mixing mixer for chemical industry
CN107901236A (en) * 2017-11-10 2018-04-13 季元吉 A kind of spherical drum-type mortar stirring device
CN108755367A (en) * 2018-06-01 2018-11-06 张磊 A kind of municipal administration anti-clogging cement road ground repair apparatus
CN109109171A (en) * 2018-09-20 2019-01-01 温国雄 A kind of architectural engineering mixing stirring device
CN109397539A (en) * 2018-10-29 2019-03-01 湖北恒福节能科技有限公司 A kind of open manufacture system of masonry mortar
CN109605576A (en) * 2018-10-29 2019-04-12 湖北恒福节能科技有限公司 The conveying and stirring system of a kind of dry-mixed mortar with sand material
CN109227948A (en) * 2018-10-29 2019-01-18 湖北恒福节能科技有限公司 A kind of mixed method of dry-mixed mortar formula material
CN109397540A (en) * 2018-10-29 2019-03-01 湖北恒福节能科技有限公司 A kind of feature of environmental protection preparation method of common dry-mixed mortar
CN109397533A (en) * 2018-10-29 2019-03-01 湖北恒福节能科技有限公司 A kind of manufacturing method of common dry-mixed mortar
CN109435068A (en) * 2018-10-29 2019-03-08 湖北恒福节能科技有限公司 A kind of high efficient production technique of masonry mortar
CN109435069A (en) * 2018-10-29 2019-03-08 湖北恒福节能科技有限公司 A kind of self raising flour dirt production system of common dry-mixed mortar
CN109483730A (en) * 2018-10-29 2019-03-19 湖北恒福节能科技有限公司 A kind of recyclability production technology of dry-mixed mortar
CN109531815A (en) * 2018-10-29 2019-03-29 湖北恒福节能科技有限公司 A kind of hybrid technique of dry-mixed mortar
CN109531816A (en) * 2018-10-29 2019-03-29 湖北恒福节能科技有限公司 A kind of generating means of dry-mixed mortar
CN109552830A (en) * 2018-10-29 2019-04-02 湖北恒福节能科技有限公司 A kind of pipelining equipment producing common dry-mixed mortar
CN109281244A (en) * 2018-11-06 2019-01-29 史振荣 A kind of highway engineering construction pavement patching device
CN110004809A (en) * 2019-04-24 2019-07-12 卢光再 A kind of road engineering pavement patching device

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Application publication date: 20150923