CN104760136A - Mixing device for continuously mixing gelatinized sand gravel and use method thereof - Google Patents
Mixing device for continuously mixing gelatinized sand gravel and use method thereof Download PDFInfo
- Publication number
- CN104760136A CN104760136A CN201510104540.9A CN201510104540A CN104760136A CN 104760136 A CN104760136 A CN 104760136A CN 201510104540 A CN201510104540 A CN 201510104540A CN 104760136 A CN104760136 A CN 104760136A
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- gravel
- stirring
- section
- continuously
- 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
- B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
- B28C5/20—Mixing in containers to which motion is imparted to effect the mixing rotating about a horizontal or substantially horizontal axis during mixing, e.g. without independent stirrers
-
- 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
- B28C5/18—Mixing in containers to which motion is imparted to effect the mixing
- B28C5/20—Mixing in containers to which motion is imparted to effect the mixing rotating about a horizontal or substantially horizontal axis during mixing, e.g. without independent stirrers
- B28C5/2045—Parts or components
- B28C5/2054—Drums, e.g. provided with non-rotary mixing blades
-
- 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
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 mixing device for continuously mixing gelatinized sand gravel and a use method thereof. The mixing device is roll-cylinder in total structure and allows materials to feed and discharged continuously. The roll-cylinder includes a material feeding part, a material stirring part and a material discharge part. An impact-abrasion-resistant stirring blade is arranged in the roll-cylinder, wherein the size, angle and distance of each section of the stirring blade are respectively designed according to the different functions. A gap penetrating the blade in the thickness direction is formed in at least one preset position of a direction that the stirring blade is extended from a material feeding inlet to a material discharging outlet. The mixing device is economical and durable, is energy-saving and high-efficient, can continuously mixing the gelatinized sand gravel material, allows a maximum granular size of an aggregate of 150 mm, and is on-site adjustable in mixing capacity according to engineering requirement with an adjustable range being 100-200 m<3>/h.
Description
Technical field
The present invention relates to engineering machinery field, is the mixing apparatus in a kind of Construction for Hydroelectric Project, particularly relates to a kind of mixing apparatus and the using method thereof that can mix and stir cement sand and gravel continuously, and the cement sand and gravel being mainly used in dam material stirring is mixed and stirred.
Background technology
Cement sand and gravel dam construction technique is the novel dam construction technique of one that Chinese scholar is proposed by autonomous innovation.Build a dam with materials such as the cementing natural soft-clay material of a small amount of Binder Materials, excavation rock ballast material, hand breaking building stones, have gather materials on the spot, simple and easy, the energy-conserving and environment-protective of constructing, numerous technological merit such as economical and practical, safe and reliable, there is good popularizing application prospect.The temporary projects such as China is built in the street, big vast mouth, merit Guo Qiao, Sha Tuo cofferdam, a collection of permanent works such as Shou Kou fort, Shanxi cemented gravel dam are also about to construct and implement.
It is large that cement sand and gravel has fluctuation of aggregate graduation, aggregate does not sieve, do not rinse, clay content high, the maximum diameter of aggrogate of the temporary projects such as cofferdam is generally 300mm, the maximum diameter of aggrogate of permanent works (dam) is 150mm, and has fluctuation of aggregate graduation large (aggregate does not sieve, do not rinse), clay content high.
At present, also do not have the special mixing apparatus for cement sand and gravel, conventional mixing method is proportioning on request at the scene, after preparing material, carries out simple and easy stirring with grapple machine.Such as, built in the street, the cement sand and gravel coffering such as big vast mouth adopts backhoe to carry out simple and easy mixing and stirring to dam material, the uniformity of mixing and stirring is difficult to ensure, the human factor in mixing and stirring has considerable influence to mixing quality.And for the construction of the permanent works such as dam, according to technical standard requirement, need to adopt special mixing apparatus to mix and stir, to ensure uniform mixing.But current construction method not only can not continuous seepage, and labour intensity is large, and most importantly stir uneven, particularly additive mixing uniformity is poorer, in addition, its aggregate size stirred maximumly is only 80mm, exist efficiency low, yield poorly, not environmentally, high in cost of production shortcoming.
In addition, the domestic existing disc type mixing apparatus for commerical ready-mixed concrete, concrete for hydraulic structure, its unit mixes and stirs the speed of application requirement that ability cannot meet cemented gravel dam far away, and it is high that multimachine mixes and stirs cost.And for the spiral continuous mixer of Stabilized Soil, although ability of mixing and stirring is higher, allow maximum aggregate size to be generally 40mm, the cement sand and gravel that maximum particle diameter is 150mm can not be mixed and stirred.
Summary of the invention
In order to overcome the deficiencies in the prior art, main purpose of the present invention is to provide a kind of continuous mixing plant for cement sand and gravel, and it possesses economy, durable, the high (200m of ability of mixing and stirring
3/ h), allow to mix and stir maximum diameter of aggrogate 150mm, what can solve cement sand and gravel mixes and stirs problem.
To achieve these goals, main technical schemes provided by the invention is:
Can mix and stir a mixing apparatus for cement sand and gravel continuously, the main body of described mixing apparatus is a cylinder, and this cylinder comprises:
One cylindrical shell, between charging aperture and discharging opening, arrange feed zone successively, stir section and discharging section, stir the stirring vane being provided with in section and stirring, be provided with at least one precalculated position on the bearing of trend of discharging opening the interruption running through this stirring vane thickness direction by charging aperture.
In one embodiment of cylinder of the present invention, stirring vane entirety can be broken into the independent sector of three, more than four or five by described interruption.
In one embodiment of cylinder of the present invention, the independent sector that described stirring vane is broken into is independently detachable.
In one embodiment of cylinder of the present invention, the independent sector that described stirring vane is broken into is distributed along helix on the bearing of trend of discharging opening by charging aperture, and the material be stirred is realized by the propelling of charging aperture to discharging opening direction in whipping process simultaneously.
In one embodiment of cylinder of the present invention, the helical angle of at least one independent sector that described stirring vane is broken into is 25 ° ~ 60 °.
In one embodiment of cylinder of the present invention, between any two abutting end in each independent sector that described stirring vane is broken into, there is preset distance H respectively, described preset distance H is 400 ~ 650mm, is less than the length of the corresponding independent sector that described stirring vane is broken into.
In one embodiment of cylinder of the present invention, the preset distance H had respectively between any two the abutting end in each independent sector that described stirring vane is broken into is equal or unequal.
In one embodiment of cylinder of the present invention, when the preset distance H had respectively between any two abutting end in each independent sector that described stirring vane is broken into is unequal, be less than the preset distance H near discharging opening side near the preset distance H of charging aperture side.
In one embodiment of cylinder of the present invention, this stirring vane is by charging aperture on the bearing of trend of discharging opening, and its axis horizontal by a predetermined angle, and makes its height near charging aperture side higher than its height near discharging opening side.
In one embodiment of cylinder of the present invention, this predetermined angle is 2 ° ~ 6 °, is preferably 4 °.
In one embodiment of cylinder of the present invention, described cylindrical shell is horizontal setting, and its axis horizontal by a predetermined angular β, and makes its height near charging aperture side higher than its height near discharging opening side.
In one embodiment of cylinder of the present invention, this predetermined angular β is 2 ° ~ 6 °, is preferably 4 °.
In one embodiment of cylinder of the present invention, described stirring vane preferably adopts 16Mn steel to make.
In one embodiment of cylinder of the present invention, in described cylindrical shell, feed zone is also provided with flight blade.
In one embodiment of cylinder of the present invention, described flight blade is continous way blade.
In one embodiment of cylinder of the present invention, the helical angle of described flight blade is greater than the helical angle of described stirring vane.
In one embodiment of cylinder of the present invention, the helical angle of described flight blade is 50 ° ~ 75 °.
In one embodiment of cylinder of the present invention, the feed zone of described cylindrical shell has roughly equal cross section with stirring section.
In one embodiment of cylinder of the present invention, this feed zone is 0.2 ~ 0.5 with the length ratio of stirring section.
In one embodiment of cylinder of the present invention, in described cylindrical shell, discharging section is also provided with discharge blade.
In one embodiment of cylinder of the present invention, described discharge blade is conical surface continous way blade.
In one embodiment of cylinder of the present invention, the helical angle of described conical surface continous way blade is 40 ° ~ 50 °.
In one embodiment of cylinder of the present invention, the discharging section of described cylindrical shell is tapered, and its sectional dimension is reduced to the position of described discharging opening by near the position of stirring section.
In one embodiment of cylinder of the present invention, the cone angle of this taper is 40 ° ~ 60 °, and it is 0.3 ~ 0.6 that the sectional dimension of described discharging opening compares the sectional dimension reduction ratio stirring section.
In one embodiment of cylinder of the present invention, this discharging section is 0.2 ~ 0.4 with the length ratio of stirring section.
In one embodiment of cylinder of the present invention, the draw ratio of cylindrical shell is 2 ~ 3.5.
In the above-mentioned any embodiment of cylinder of the present invention, described stirring vane is two groups or three groups.
In one embodiment of cylinder of the present invention, each of wherein stirring vane described in a group be interrupted to organize with another each of described stirring vane corresponding be interrupted just not right.
A kind of equipment mixing and stirring cement sand and gravel continuously provided by the invention, it comprises:
One cylinder, this cylinder is aforesaid arbitrary cylinder;
One support, is supported in cylindrical shell outside, and rotates relative to this support for the axis of cylindrical shell along its transverse direction, and this support has first end and the second end, the first end of the corresponding support of charging aperture of cylindrical shell, the second end of the corresponding support of discharging opening of cylindrical shell;
Transmission system, is located at cylindrical shell outside, and the power providing cylindrical shell to rotate.
The present invention mixes and stirs in an embodiment of the equipment of cement sand and gravel continuously, also has a support roller, and be located in first end and second end of support by wheel, its wheel face rolling support is in the outside wall surface of cylindrical shell.
The present invention mixes and stirs in an embodiment of the equipment of cement sand and gravel continuously, and the outside wall surface of described cylindrical shell is also provided with some circle rolling rings, and at least one circle rolling ring is located at cylindrical shell near the side of discharging opening to should the position of support roller, and supports for the wheel face of this support roller.
The present invention mixes and stirs in an embodiment of the equipment of cement sand and gravel continuously, also there is a gear wheel, be located between the first end of the support of cylindrical shell outside and the second end, and provide a drag paralleled with the axis of cylindrical shell to avoid cylindrical shell to glide for cylindrical shell, what realize cylindrical shell is spacing.
The present invention mixes and stirs in an embodiment of the equipment of cement sand and gravel continuously, and the outside wall surface of described cylindrical shell is also provided with one group of gear, and this gear is located near charging aperture side.
The present invention mixes and stirs in an embodiment of the equipment of cement sand and gravel continuously, and described transmission system is provided with motor, reductor, shaft coupling, and drives this gear of connection.
Present invention also offers a kind of above-mentioned arbitrary using method of mixing and stirring the equipment of cement sand and gravel continuously, wherein, the rotary speed of cylindrical shell is 12 ~ 21r/min, is preferably 15r/min.
Wherein, material is 2 ~ 10 turns stirring the agitation revolution in section, is preferably 8 turns.
Wherein, material is 10 ~ 40s stirring the time of staying in section, is preferably 33.4s.
Another object of the present invention is to provide a kind of cement sand and gravel mixing apparatus, and it stirs, and can improve stirring efficiency, and the aggregate that can realize being greater than aggregate size 80mm stirs.
In order to achieve the above object, main technical schemes provided by the invention comprises:
A kind of cement sand and gravel mixing apparatus, comprise aggregate batching system, aggregate belt conveyor, cement bin, fine coal ash silo, conveying worm, to weigh screw machine, water system, liquor system, mixer, Finished Product Transport System, finished product storage bin and control system, aggregate batching system is docked with aggregate belt conveyor, the aggregate belt conveyor other end docks with mixer, cement bin and fine coal ash silo pass through conveying worm successively, screw machine of weighing access mixer, water system is connected with mixer with liquor system, mixer is connected with Finished Product Transport System, Finished Product Transport System end is connected with finished product storage bin.
Described aggregate batching system comprises aggregate bin, aggregate measuring belt, aggregate bin steel frame is supported on ground, its top is rectangular structure, and bottom is cone structure, and cone mouth is docked with aggregate measuring belt, screen cloth and pressure reductor is provided with in aggregate bin, described cone mouth place is provided with bin gate, and in order to adjust aggregate outlet size, described aggregate bin is provided with vibrator, described aggregate measuring belt is continous way metering, which is provided with and lacks material alarm.
Described cement bin and fine coal ash silo are inclined wimble structure, arch breaking apparatus and waterproof baffle ring is equipped with above cement bin and fine coal ash silo cone discharging opening, outlet is all docked with conveying worm, the conveying worm other end docks with screw machine of weighing, the screw machine other end of weighing is connected with feed pipe by cloth bag, and the feed pipe other end inserts mixer.
Described water system is by storage cylinder of water, tubing pump, water supply flow meter, water electric control valve, and storage cylinder of water is connected with mixer through tubing pump, water supply flow meter, water electric control valve successively.
Described liquor system comprises liquor agitating device, liquor cylinder, liquor pump, liquor flowmeter, liquor electric control valve, liquor agitating device is located in liquor cylinder, liquor agitating device comprises reducing motor, liquor shaft, liquor stirring vane, reducing motor drives liquor shaft, liquor stirring vane is arranged on liquor shaft, and liquor cylinder is connected with mixer by liquor pump, liquor flowmeter, liquor electric control valve successively.
Described Finished Product Transport System is primarily of deflector chute, finished belt machine composition, and deflector chute one end is docked with mixer, and the other end docks with finished belt machine, and the other end of finished belt machine docks with finished product storage bin.
Described mixer adopts foundation-free structure, inner barrel is divided into charging, stirring, discharging three sections, charging, pull-off section adopt inside and outside Double cone structure, stir section and adopt column structure, blade is provided with in three sections, blade is made up of wear-resisting steel plate, and staggered helical is distributed in cylindrical shell.Wherein, be preferably, stir the stirring vane being provided with in section and stirring, be provided with at least one precalculated position on the bearing of trend of pull-off section the interruption running through this stirring vane thickness direction by pull-on section.
Described finished product storage bin inside is provided with noise-reducing lattice plate.
Compared with prior art, the invention has the advantages that:
Equipment in the present invention, utilizes the blade of cylinder inwall to carry out positive mixing and lifting to material in cylinder, and material is unrestrained by self gravitation, impact, thus the mutual alignment of partial material is constantly redistributed, and obtains uniform stirring.The advantage making the equipment described in this invention have positive mixing and gravity type concurrently to mix and stir;
Cylinder in the present invention, by the combination of multiple blade wherein, the cement sand and gravel uniform mixing after it mixes and stirs.Do not occur the phenomenon that large aggregate is concentrated, the particulate material being wherein greater than 80mm wraps up in slurry, dispersion, and the particulate material within 80mm fully mixes, wrap up in slurry, adhesive aggregation;
Preparation process is succinct, can continuous seepage, output increased, and product quality coverage ratio improves, especially can the discharging of generous amount high-efficiency and continuous, and constant rate of production can reach 200m
3/ h; Compared with roller compacted concrete, the material particular diameter that can stir significantly improves, and maximum stirring material particular diameter can bring up to 150mm from 80mm, stirs and all can reach the good result of expection, even can carry out stirring up to standard to the material that maximum diameter of aggrogate reaches 300mm;
Because blade adopts Special wear-resistant material, long service life;
Compared with equipment in the past, mixing apparatus reasonable in design of the present invention, control system optimal control, adopt modularized design, departmentalism part combinationally uses, transport for convenience detach and safeguard assembled;
Scene can not specialize basis, complete machine even running can be ensured, reduce investment outlay;
This batching system totally stirs, and mixing time is short, low in energy consumption, efficient, environmental protection;
Material mixture ratio continuously adjustabe, operating cost is low;
High-precision measuring can be realized by arranging metering device to each link, and then realize the accurate proportioning stirring material.
Accompanying drawing explanation
Fig. 1 is the cylinder overall structure perspective view for continuous mixing plant of one embodiment of the present of invention;
Fig. 2 is the external overall structural representation of the cylinder for continuous mixing plant of one embodiment of the invention;
Fig. 3 is the side view of the discharging opening side of the cylinder for continuous mixing plant of one embodiment of the invention;
Fig. 4 is the side view of the charging aperture side of the cylinder for continuous mixing plant of one embodiment of the invention;
Fig. 5 is the overall structure schematic diagram of the equipment of cement sand and gravel that mixes and stirs continuously of one embodiment of the invention;
Fig. 6 is the front view (in-line) of the cement sand and gravel mixing apparatus of one embodiment of the invention;
Fig. 7 is the top view (in-line) of the cement sand and gravel mixing apparatus of one embodiment of the invention;
Fig. 8 is the front view (L shape) of the cement sand and gravel mixing apparatus of one embodiment of the invention;
Fig. 9 is the top view (L shape) of the cement sand and gravel mixing apparatus of one embodiment of the invention;
Figure 10 is the water system structural representation of the cement sand and gravel mixing apparatus of one embodiment of the invention;
Figure 11 is the liquor system architecture schematic diagram of the cement sand and gravel mixing apparatus of one embodiment of the invention;
Figure 12 is the mixer structural representation (frictional wheel drive) of the cement sand and gravel mixing apparatus of one embodiment of the invention;
Figure 13 is the mixer structural representation (gear drive) of the cement sand and gravel mixing apparatus of one embodiment of the invention.
[main element symbol description]
Aggregate bin 1, aggregate measuring belt 2, aggregate belt conveyor 3, cement bin 4, cement screw conveyer 5, cement is weighed screw machine 6, fine coal ash silo 7, flyash conveying worm 8, flyash is weighed screw machine 9, water system 10, liquor system 11, mixer 12, cylindrical shell 121, gear wheel 122, transmission system 123, support roller 124, support 125, continuous blade 126, stirring vane 127, continuous blade 128, gear 129, rolling ring 1210, rolling ring 1211, finished belt machine 13, finished product storage bin 14, air-channel system 15, control system 16, storage cylinder of water 17, tubing pump 18, water supply flow meter 19, liquor cylinder 20, liquor pump 21, liquor flowmeter 22, deflector chute 23, water electric control valve 24, liquor electric control valve 25.
Detailed description of the invention
Describe the present invention below in conjunction with Figure of description; it is to be noted that the following stated is only preferred embodiment of the present invention; not any pro forma restriction is done to the present invention; every embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong to the protection domain of technical solution of the present invention.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, a kind of cylinder for continuous mixing plant of one embodiment of the present of invention, it has: cylindrical shell 121, continuously blade 126, stirring vane 127, continuously blade 128.
Concrete, described cylindrical shell 121 is divided into three sections, and be feed zone respectively, stir section and discharging section, the function of every section is different, and helical angle is not identical yet.
Described feed zone, inside it, barrel is installed the continuous blade 126 compared with large helix angle, and major function is that material is sent into stirring section fast, in case bank forms blocking in porch.
Described stirring section, barrel is provided with stirring vane 127 within it.Concrete, stirring vane 127 adopts low-angle interrupted blade, as shown in Figure 2.And can dismounting and change, major function is the high position taken to by the material that feed zone is sent in cylindrical shell 121, and then material falls under Gravitative Loads, forms null-gravity state, makes material fully contact with dropping process, collide, merge aloft.Because stirring vane 127 is low-angle intermittent type, while avoiding getting stuck, both can limit the fast scroll of large aggregate, frequently can throw material again, make large-particle-size aggregate fully wrap slurry, realize the object stirred.Stirring vane 127 distributes, by axial advance (discharging process) while material is stirred blade 127 upthrow (whipping process) along helix.
Concrete, described stirring vane 127 can adopt wear-resisting steel to make, and as 16Mn steel, mixes and stirs the wearing and tearing of ability and large-particle-size aggregate to meet high strength and impacts the requirement of impact.
Described discharging section, the barrel inside it is installed continuous blade 128, and object sends outside cylindrical shell 121 by the material that stirring section is stirred, and is preferably the continuous blade of the conical surface.Cone angle and the outlet size of the discharging section conical surface can be revised by test, and effect mainly controls the storage of material in cylindrical shell 121, to increase mixing time, makes material stirring more abundant.
Concrete, for preventing material in porch reflux, make discharging smooth and easy, the axis of described cylindrical shell 121 can horizontal by 4 ° of inclination angles, and feed zone should higher than discharging section.
Concrete, in the peripheral outside wall surface of cylindrical shell 121, be installed with gear 129, rolling ring 1210 and rolling ring 1211 about the upstream and downstream position of stirring section.Concrete, that position sets firmly a circle gear 129 and rolling ring 1210 at its upstream, the active force that the gear wheel of gear 129 transmits for accepting transmission system 123, thus drive whole cylindrical shell 121 to rotate, rolling ring 1211 is footholds that support roller supports cylindrical shell 121, and ensures that cylindrical shell 121 can smooth and easyly roll under the support of support roller 124.In addition, also set firmly a circle rolling ring 1210 at upstream position, its effect is identical with the rolling ring 1211 that downstream position sets firmly, and is the foothold making support roller 124 support cylindrical shell 121 equally, and ensures that cylindrical shell 121 can smooth and easyly roll under the support of support roller 124.
See Fig. 5, an a kind of embodiment of mixing and stirring the equipment of cement sand and gravel continuously of the present invention, its overall structure is drum-type continuous discharge, and it mainly comprises: cylinder, gear wheel 122, transmission system 123, support roller 124, support 125.
Cylinder can adopt the cylinder in earlier figures 1-embodiment illustrated in fig. 4, and cylinder is the main body of mixing apparatus, and the inner space of its cylindrical shell 121 carries out the place that material mixes and stirs.
Gear wheel 122 provides a drag paralleled with cylindrical shell 121 axis for cylindrical shell 121, avoids cylindrical shell 121 to slide under the angle tilted, plays spacing effect.
Transmission system 123 provides rotatory force to cylindrical shell 121.
Described transmission system 123 can adopt the combination of a set of motor, reductor, shaft coupling, is passed to by active force on described gear 129, reaches the object driving cylindrical shell 121 to rotate.
Support roller 124 plays the effect supporting cylindrical shell 121, and it is smooth and easy to ensure that cylindrical shell 121 rotates.
Whole mixing plant is firmly supported on ground by support 125.
The equipment mixing and stirring cement sand and gravel continuously of the present invention can use as follows:
Wherein the used material be stirred can be: 5 ~ 150mm sand gravel: 2200 ~ 2300 kg/m3, cement: 40 ~ 50 kg/m3, flyash: 40 ~ 50 kg/m3, the consumption of water: 80 ~ 150 kg/m3.
Output 200m3/h on request, leaves the surplus of 10%, and be 1.6 times of discharging volume by charging volume, then charging volume Q1 is:
Q1= 200×1.1×1.6 = 352m3/h= 5.86m3/min
According to inlet amount Q1, the diameter of preferred cylindrical shell 121 is Φ 2200mm, tubular axis overall length L4600mm, wherein feed zone 1135mm, stirs section 2672mm, discharging section 793mm.As shown in Figure 2.Drum speed is set as 15r/min.
Wherein, preferably, mix stops 33.4 s in stirring section, through the stirring of about 8 turns, enter discharging section, material has distributed in proportion in advance when entering stirring, again through charging, stirring, discharging etc., the cement sand and gravel after stirring is the certified products meeting engineering demand.
Of the present invention mix and stir cement sand and gravel continuously equipment economy and durability, efficient energy-saving, cement sand and gravel material can be mixed and stirred continuously, the maximum diameter of aggrogate allowed is 150mm, the ability of mixing and stirring can according to the adjustment of requirement of engineering scene, and such as adjusting range can be 100 ~ 200m
3/ h.
Present invention also offers the embodiment of a kind of application system of cement sand and gravel mixing apparatus, see Fig. 6 to Figure 13, a kind of cement sand and gravel mixing apparatus, comprise aggregate batching system, aggregate belt conveyor 3, cement bin 4, fine coal ash silo 7, conveying worm, to weigh screw machine, water system 10, liquor system 11, mixer 12, Finished Product Transport System, finished product storage bin 14, air-channel system 15, control system 16, the aggregate of aggregate bin 1 is loaded by loading machine, aggregate bin 1 steel frame is supported on ground, its top is cuboid, bottom adopts cone structure, cone mouth is docked with aggregate measuring belt 2, mixer 12 is entered through aggregate belt conveyor 3 after aggregate measuring belt 2 fallen by aggregate in aggregate bin 1.Aggregate bin 1 is provided with screen cloth and pressure reductor, and screen cloth can prevent super large building stones from entering aggregate bin 1, and the blanking of pressure reductor available buffer is impacted, and prevent discharging putty phenomenon, cone mouth place is configured with the bin gate of adjustable size, adjustment continuous discharge amount, and aggregate bin 1 is furnished with vibrator; Aggregate measuring belt 2 is continous way metering, realizes lacking material warning function by alarm.
Cement bin 4 and fine coal ash silo 7 are inclined wimble structure, and be provided with arch breaking apparatus and waterproof baffle ring, arch breaking apparatus is the stable state of the air-flow destruction material by helping gas pad to produce, solve material knot arch and block the not smooth phenomenon of the blanking caused, outlet is all docked with conveying worm, the conveying worm other end docks with screw machine of weighing, and the screw machine other end of weighing is connected with feed pipe by cloth bag, and the feed pipe other end inserts mixer 12;
Water system 10 forms primarily of storage cylinder of water 17, tubing pump 18, water supply flow meter 19, water electric control valve 24, and the water of storage cylinder of water 17 pressurizes through tubing pump 18, flows into described mixer 12 after water supply flow meter 19, water electric control valve 24.
Liquor system 11 comprises liquor agitating device, liquor cylinder 20, liquor pump 21, liquor flowmeter 22, liquor electric control valve 25, liquor agitating device is arranged in liquor cylinder 20, liquor agitating device comprises reducing motor, liquor shaft, liquor stirring vane, reducing motor drives liquor shaft, liquor stirring vane is located on liquor shaft, and the liquor of liquor cylinder 20 is pressurizeed by liquor pump 21 successively, liquor flowmeter 22 measures, liquor electric control valve 25 is rear flows into mixer 12.
Mixer 12 adopts foundation-free to design, inner barrel is divided into charging, stirring, discharging three sections, charging, pull-off section adopt inside and outside Double cone structure, stir section and adopt column structure, be provided with in different sections different length, different types pull-on section blade, stir section vanes and pull-off section blade, blade is made up of wear-resisting steel plate, and staggered helical is distributed in cylindrical shell, detachably.Material in cylindrical shell carries out advancing, split and promoting under the synergy of pull-on section blade, stirring section vanes, pull-off section blade, make material crossed space formula mixing in the process of advancing, thus make the mutual alignment of material constantly carry out redistributing the effect reaching uniform stirring.Wherein, in one group of preferred embodiment of the present invention, what the cylinder of its mixer 12 adopted is Fig. 1, Fig. 2, Fig. 3, embodiment illustrated in fig. 4 in cylinder, or, what the blade of the stirring section of the inner barrel of its mixer 12 adopted is embodiment illustrated in fig. 1 in the stirring vane 127 of intermittent type.
Finished Product Transport System forms primarily of deflector chute 23, finished belt machine 13.Deflector chute 23 one end is docked with mixer 12, and the other end docks with finished belt machine 13, and the other end of finished belt machine 13 docks with finished product storage bin 14, and finished product storage bin 14 inside is provided with noise-reducing lattice plate.Control system 16 is divided into automatic blending and manually prepares burden.
Embodiment one:
Main feature is that overall applicability system adopts in-line to arrange, mixer 12 is in tilted layout, and mixer 12 adopts gear drive.
See Fig. 6, Fig. 7, the cement sand and gravel mixing apparatus of an embodiment, comprises aggregate bin 1, screw machine 6 is weighed by aggregate measuring belt 2, aggregate belt conveyor 3, cement bin 4, cement screw conveyer 5, cement, fine coal ash silo 7, flyash conveying worm 8, flyash are weighed screw machine 9, water system 10, liquor system 11, mixer 12, finished belt machine 13, finished product storage bin 14, air-channel system 15, control system 16.
Aggregate loads aggregate bin 1 by loading machine, and the aggregate measuring belt 2 that the aggregate in aggregate bin 1 is fallen, enters mixer 12 through aggregate belt conveyor 3 after metering.
Cement in cement bin 4 enters cement through cement screw conveyer 5 and to weigh screw machine 6, enters mixer 12 after metering.
Flyash in fine coal ash silo 7 enters flyash through flyash conveying worm 8 and to weigh screw machine 9, enters mixer 12 after metering.
Water in storage cylinder of water 17 pressurizes through tubing pump 18, water supply flow meter 19 measures, and flows into mixer 12 after water electric control valve 24 adjust flux.
Liquor inside liquor cylinder 20 pressurizes through liquor pump 21 after stirring, liquor flowmeter 22 measures, and flows into mixer 12 after liquor electric control valve 25 adjust flux.
The axis of mixer 12 is downward-sloping certain angle along discharging direction, is convenient to accelerate discharging speed, and what transmission adopted is gear drive, reliable transmission.
Raw material exports to finished belt machine 13 after mixer 12 mixes, and is transported to finished product storage bin 14 by finished belt machine 13.The throughput direction of finished belt machine 13 is consistent with the discharging direction of mixer 12, and namely in-line is arranged.
Embodiment two:
Be with embodiment one difference: the discharging direction of mixer 12 is vertical with the throughput direction of finished belt machine 13, namely L shape arranges (as shown in Figure 8, Figure 9), and embodiment one employing is that in-line is arranged.
Embodiment three:
Be with embodiment one difference: the axis of mixer 12 adopts horizontally disposed, and embodiment one is along the downward-sloping layout in discharging direction.
Embodiment four:
Be with embodiment one difference: what mixer 12 adopted is that friction pulley transmits power (see Figure 12), and embodiment one is by gear drive power (see Figure 13).
Embodiment five:
Be with embodiment one difference: cancel deflector chute 23, finished belt machine 13, finished product storage bin 14 is positioned over below the discharging opening of mixer 12, and material directly falls into finished product storage bin 14 after mixer 12 mix and blend.
Embodiment six:
Be with embodiment one difference: cancel cement screw conveyer 5 and flyash conveying worm 8; Cement in cement bin 4 directly enters cement and to weigh screw machine 6, enters mixer 12 after metering, and the flyash in fine coal ash silo 7 directly enters flyash and to weigh screw machine 9, enters mixer 12 after metering.
Embodiment seven:
Be with embodiment one difference: replace tubing pump 18 with variable frequency pump and cancel water electric control valve 24, according to the feedback result that water ga(u)ge 19 measures, regulate the motor speed of variable frequency pump to change the flow of water.Replace liquor pump 21 with variable frequency pump and cancel liquor electric control valve 25, according to the feedback result that liquor flowmeter 22 measures, regulating the motor speed of variable frequency pump to change the flow of water to change the flow of liquor.
Embodiment eight:
Be with embodiment one difference: add manual modulation valve with spinner flowmeter and replace water electric control valve 24, water ga(u)ge 19, liquor electric control valve 25, liquor flowmeter 22, reach simple manual adjustments and control.
The application system of cement sand and gravel mixing apparatus of the present invention, its reasonable in design, easy to make, achieve continuous seepage, all parts combinationally uses, and convenient migration, realizes high-precision measuring by arranging metering device to each link, and then the accurate proportioning stirring material can be realized, stir, with low cost, output is high, the aggregate size large (maximum diameter of aggrogate is 300mm) that can be suitable for, low in energy consumption.
Claims (14)
1. can mix and stir a mixing apparatus for cement sand and gravel continuously, the main body of described mixing apparatus is a cylinder, it is characterized in that, this cylinder comprises:
One cylindrical shell, between charging aperture and discharging opening, arrange feed zone successively, stir section and discharging section, be provided with the stirring vane stirred in this stirring section, be provided with at least one precalculated position on the bearing of trend of discharging opening the interruption running through this stirring vane thickness direction by charging aperture.
2. can mix and stir the mixing apparatus of cement sand and gravel as claimed in claim 1 continuously, it is characterized in that:
Stirring vane entirety is broken into three, more than four or five independent sectors by described interruption, and each independent sector is independently detachable, and wherein the helical angle of at least one independent sector is 25 ° ~ 60 °.
3. can mix and stir the mixing apparatus of cement sand and gravel as claimed in claim 2 continuously, it is characterized in that:
The independent sector that described stirring vane is broken into is distributed along helix on the bearing of trend of discharging opening by charging aperture, and the material be stirred is realized by the propelling of charging aperture to discharging opening direction in whipping process simultaneously.
4. can mix and stir the mixing apparatus of cement sand and gravel as claimed in claim 2 continuously, it is characterized in that:
Between any two abutting end in each independent sector that described stirring vane is broken into, there is preset distance H respectively, this preset distance H is less than the length of the corresponding independent sector that described stirring vane is broken into, this preset distance H is preferably 400 ~ 650mm, H is equal or unequal, when H is unequal, be less than the preset distance H near discharging opening side near the preset distance H of charging aperture side.
5. can mix and stir the mixing apparatus of cement sand and gravel as claimed in claim 1 continuously, it is characterized in that:
This stirring vane is by charging aperture on the bearing of trend of discharging opening, and its axis horizontal by a predetermined angle, and makes its height near charging aperture side higher than its height near discharging opening side, and this predetermined angle is 2 ° ~ 6 °, is preferably 4 °.
6. can mix and stir the mixing apparatus of cement sand and gravel as claimed in claim 1 continuously, it is characterized in that:
Described cylindrical shell is horizontal setting, and its axis horizontal by a predetermined angular β, and makes its height near charging aperture side higher than its height near discharging opening side, and this predetermined angular β is 2 ° ~ 6 °, is preferably 4 °.
7. can mix and stir the mixing apparatus of cement sand and gravel as claimed in claim 1 continuously, it is characterized in that:
Described stirring vane adopts 16Mn steel to make,
Described stirring vane is two groups or three groups, each of wherein stirring vane described in a group be interrupted to organize with another each of described stirring vane corresponding be interrupted just not right.
8. can mix and stir the mixing apparatus of cement sand and gravel as claimed in claim 1 continuously, it is characterized in that:
Also be provided with flight blade in the feed zone of described cylindrical shell, flight blade is continous way blade, and the helical angle of blade is 50 ° ~ 75 °, is greater than the helical angle of described stirring vane,
The feed zone of described cylindrical shell has roughly equal cross section with stirring section, and feed zone is 0.2 ~ 0.5 with the length ratio of stirring section.
9. can mix and stir the mixing apparatus of cement sand and gravel as claimed in claim 1 continuously, it is characterized in that:
Be provided with discharge blade in the discharging section of described cylindrical shell, discharge blade is conical surface continous way blade, and its cone angle is 40 ° ~ 50 °,
The discharging section of described cylindrical shell is tapered, its sectional dimension is reduced to the position of described discharging opening by near the position of stirring section, the cone angle of this taper is 40 ° ~ 60 °, it is 0.3 ~ 0.6 that the sectional dimension of discharging opening compares the sectional dimension reduction ratio stirring section, and discharging section is 0.2 ~ 0.4 with the length ratio of stirring section.
10. can mix and stir the mixing apparatus of cement sand and gravel as claimed in claim 1 continuously, it is characterized in that:
The draw ratio of cylindrical shell is 2 ~ 3.5.
11. 1 kinds of equipment mixing and stirring cement sand and gravel continuously, is characterized in that having:
One cylinder, this cylinder is the arbitrary cylinder described in claim 1 to 10;
One support, is supported in cylindrical shell outside, and rotates relative to this support for the axis of cylindrical shell along its transverse direction, and this support has first end and the second end, the first end of the corresponding support of charging aperture of cylindrical shell, the second end of the corresponding support of discharging opening of cylindrical shell;
One support roller, be located in first end and second end of support by wheel, its wheel face rolling support is in the outside wall surface of cylindrical shell;
The outside wall surface of cylindrical shell is also provided with some circle rolling rings, and at least one circle rolling ring is located at cylindrical shell near the side of discharging opening to should the position of support roller, and supports for the wheel face of this support roller;
Also have a gear wheel, be located between the first end of the support of cylindrical shell outside and the second end, and provide a drag paralleled with the axis of cylindrical shell to avoid cylindrical shell to glide for cylindrical shell, what realize cylindrical shell is spacing;
The outside wall surface of cylindrical shell is also provided with one group of gear, and this gear is located near charging aperture side;
Transmission system, is located at cylindrical shell outside, and the power providing cylindrical shell to rotate, transmission system is provided with motor, reductor, shaft coupling, and connects the described gear of driving.
12. 1 kinds of cement sand and gravel mixing apparatus, it is characterized in that, it comprises aggregate batching system, aggregate belt conveyor, cement bin, fine coal ash silo, conveying worm, to weigh screw machine, water system, liquor system, mixer, Finished Product Transport System, finished product storage bin and control system, aggregate batching system is docked with aggregate belt conveyor, the aggregate belt conveyor other end docks with mixer, cement bin and fine coal ash silo pass through conveying worm successively, screw machine of weighing access mixer, water system is connected with mixer with liquor system, mixer is connected with Finished Product Transport System, Finished Product Transport System end is connected with finished product storage bin.
13. cement sand and gravel mixing apparatus as claimed in claim 12, is characterized in that:
The main body of its mixer is a cylinder, this cylinder comprises a cylindrical shell, this cylindrical shell is arranged feed zone successively, is stirred section and discharging section between its charging aperture and discharging opening, be provided with the stirring vane stirred in this stirring section, be provided with at least one precalculated position on the bearing of trend of discharging opening the interruption running through this stirring vane thickness direction by charging aperture.
The using method of any one equipment in 14. 1 kinds of claims 1 to 13, is characterized in that:
The rotary speed of cylindrical shell is 12 ~ 21r/min, is preferably 15r/min;
Material is 2 ~ 10 turns stirring the agitation revolution in section, is preferably 8 turns;
Material is 10 ~ 40s stirring the time of staying in section, is preferably 33.4s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510104540.9A CN104760136A (en) | 2014-03-11 | 2015-03-10 | Mixing device for continuously mixing gelatinized sand gravel and use method thereof |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2014100886614 | 2014-03-11 | ||
| CN201410088661.4A CN103831902A (en) | 2014-03-11 | 2014-03-11 | Cemented sand and gravel mixing equipment |
| CN2014107903729 | 2014-12-17 | ||
| CN201410790372 | 2014-12-17 | ||
| CN201510104540.9A CN104760136A (en) | 2014-03-11 | 2015-03-10 | Mixing device for continuously mixing gelatinized sand gravel and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104760136A true CN104760136A (en) | 2015-07-08 |
Family
ID=53642395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510104540.9A Pending CN104760136A (en) | 2014-03-11 | 2015-03-10 | Mixing device for continuously mixing gelatinized sand gravel and use method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104760136A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182437A (en) * | 2016-07-04 | 2016-12-07 | 东北大学 | A kind of cement sand and gravel mixing apparatus and method |
| CN106311041A (en) * | 2016-09-19 | 2017-01-11 | 福建峨嵋祥鑫生态笋竹食品有限公司 | Efficient mixing device for processing bamboo shoot products |
| CN106701530A (en) * | 2016-12-05 | 2017-05-24 | 普瑞特机械制造股份有限公司 | Horizontal type rotary drum stirring, feeding and discharging device |
| CN108099009A (en) * | 2017-12-25 | 2018-06-01 | 长安大学 | A kind of self-falling mixer with axial circulation and shunting stirring action |
| CN108238835A (en) * | 2018-03-01 | 2018-07-03 | 中国葛洲坝集团易普力股份有限公司 | Sticky ammonium nitrate-fuel oil mixture puddles roller |
| CN111852026A (en) * | 2020-07-31 | 2020-10-30 | 华北水利水电大学 | Novel construction process of gelled sand gravel dam |
| CN111844450A (en) * | 2020-07-28 | 2020-10-30 | 华北水利水电大学 | Device for uniformly stirring and mixing gelled gravel materials |
| CN113522111A (en) * | 2021-08-12 | 2021-10-22 | 江西全兴化工填料有限公司 | Processing equipment for composite ceramic filler |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191015509A (en) * | 1910-06-28 | 1911-04-13 | John Switzer Owens | Improvements relating to Rotary Mixing Machines. |
| JP2001001334A (en) * | 1999-06-23 | 2001-01-09 | Nishimatsu Constr Co Ltd | Drum mixer for kneading concrete |
| CN2534006Y (en) * | 2001-12-18 | 2003-02-05 | 福建南方路面机械有限公司 | Continuous weighing metering stabilized soil plantmix equipment |
| JP2004122050A (en) * | 2002-10-04 | 2004-04-22 | Fujita Corp | Screw type continuous mixing apparatus, continuous mixing screw and screw type continuous mixing method |
| CN201109162Y (en) * | 2007-11-09 | 2008-09-03 | 夏瑾 | Modularized combined type agitating station |
| 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 |
| CN202462633U (en) * | 2012-03-05 | 2012-10-03 | 甘肃蓝科石化高新装备股份有限公司 | Variable-frequency adjustable-speed stabilized soil mixing plant with function of dynamic weighing |
| CN103101116A (en) * | 2012-12-29 | 2013-05-15 | 长安大学 | Concrete mixing plant configured with vibration type mixing main engine |
| CN103432938A (en) * | 2013-08-30 | 2013-12-11 | 辽宁海诺建设机械集团有限公司 | Continuous rotary mixer and using method thereof |
-
2015
- 2015-03-10 CN CN201510104540.9A patent/CN104760136A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191015509A (en) * | 1910-06-28 | 1911-04-13 | John Switzer Owens | Improvements relating to Rotary Mixing Machines. |
| JP2001001334A (en) * | 1999-06-23 | 2001-01-09 | Nishimatsu Constr Co Ltd | Drum mixer for kneading concrete |
| CN2534006Y (en) * | 2001-12-18 | 2003-02-05 | 福建南方路面机械有限公司 | Continuous weighing metering stabilized soil plantmix equipment |
| JP2004122050A (en) * | 2002-10-04 | 2004-04-22 | Fujita Corp | Screw type continuous mixing apparatus, continuous mixing screw and screw type continuous mixing method |
| CN201109162Y (en) * | 2007-11-09 | 2008-09-03 | 夏瑾 | Modularized combined type agitating station |
| 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 |
| CN202462633U (en) * | 2012-03-05 | 2012-10-03 | 甘肃蓝科石化高新装备股份有限公司 | Variable-frequency adjustable-speed stabilized soil mixing plant with function of dynamic weighing |
| CN103101116A (en) * | 2012-12-29 | 2013-05-15 | 长安大学 | Concrete mixing plant configured with vibration type mixing main engine |
| CN103432938A (en) * | 2013-08-30 | 2013-12-11 | 辽宁海诺建设机械集团有限公司 | Continuous rotary mixer and using method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 代若奇: "HZS120型混凝土搅拌站", 《工程机械》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106182437A (en) * | 2016-07-04 | 2016-12-07 | 东北大学 | A kind of cement sand and gravel mixing apparatus and method |
| CN106311041A (en) * | 2016-09-19 | 2017-01-11 | 福建峨嵋祥鑫生态笋竹食品有限公司 | Efficient mixing device for processing bamboo shoot products |
| CN106701530A (en) * | 2016-12-05 | 2017-05-24 | 普瑞特机械制造股份有限公司 | Horizontal type rotary drum stirring, feeding and discharging device |
| CN108099009A (en) * | 2017-12-25 | 2018-06-01 | 长安大学 | A kind of self-falling mixer with axial circulation and shunting stirring action |
| CN108238835A (en) * | 2018-03-01 | 2018-07-03 | 中国葛洲坝集团易普力股份有限公司 | Sticky ammonium nitrate-fuel oil mixture puddles roller |
| CN111844450A (en) * | 2020-07-28 | 2020-10-30 | 华北水利水电大学 | Device for uniformly stirring and mixing gelled gravel materials |
| CN111844450B (en) * | 2020-07-28 | 2021-05-28 | 华北水利水电大学 | Device for uniformly stirring and mixing gelled gravel materials |
| CN111852026A (en) * | 2020-07-31 | 2020-10-30 | 华北水利水电大学 | Novel construction process of gelled sand gravel dam |
| CN111852026B (en) * | 2020-07-31 | 2021-12-07 | 华北水利水电大学 | Novel construction process of gelled sand gravel dam |
| CN113522111A (en) * | 2021-08-12 | 2021-10-22 | 江西全兴化工填料有限公司 | Processing equipment for composite ceramic filler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104760136A (en) | Mixing device for continuously mixing gelatinized sand gravel and use method thereof | |
| CN105751371B (en) | Building concrete stirring system | |
| CN201214278Y (en) | Mortar pre-stirring type continuous cement concrete stirring station | |
| CN101879755A (en) | Drying-free dry-mixed mortar complete equipment | |
| CN102345265B (en) | Separation feeding-type hot mix intermittent asphalt mixture blending machine and production technology therefor | |
| CN107696275A (en) | A kind of Efficient Agitator for building mortar production | |
| CN211030631U (en) | Automatic concrete batching device | |
| CN201720929U (en) | Drying-free dry-mixed mortar complete equipment | |
| CN109910173A (en) | A kind of making coal gangue brick mixing equipment with automatic sieving function | |
| CN204566397U (en) | A kind of concrete surge bin | |
| CN106182437A (en) | A kind of cement sand and gravel mixing apparatus and method | |
| CN107234729A (en) | A kind of concrete central mix plant with tilt rotation inner cylinder | |
| CN103171053A (en) | Composite foamed concrete grouting device with continuous material feeding, stirring, conveying and parameter measuring and control functions | |
| CN108748685A (en) | A kind of ready-mixed concrete production system | |
| CN114290530A (en) | Production equipment and production process for poor cementing material concrete | |
| CN205416018U (en) | Building concrete mixing system | |
| CN105257000A (en) | Grouting machine, and control system and concrete conveying method thereof | |
| CN107486945A (en) | A kind of housing construction efficient mixing device | |
| CN214925668U (en) | Material mixing device for building construction | |
| CN212100769U (en) | Dry-mixed mortar conveying device | |
| CN207327302U (en) | A kind of feeding device of concrete mixing plant | |
| CN209665846U (en) | A kind of ready-mixed concrete production system | |
| CN112976315B (en) | Dry-mixed mortar production system | |
| CN103831902A (en) | Cemented sand and gravel mixing equipment | |
| CN209937331U (en) | Concrete premixing device of building rubbish recycled aggregate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150708 |