CN114290530A - Production equipment and production process for poor cementing material concrete - Google Patents
Production equipment and production process for poor cementing material concrete Download PDFInfo
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- CN114290530A CN114290530A CN202111540581.4A CN202111540581A CN114290530A CN 114290530 A CN114290530 A CN 114290530A CN 202111540581 A CN202111540581 A CN 202111540581A CN 114290530 A CN114290530 A CN 114290530A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 62
- 239000000463 material Substances 0.000 title claims abstract description 54
- 239000004568 cement Substances 0.000 claims abstract description 88
- 238000003756 stirring Methods 0.000 claims abstract description 82
- 238000003860 storage Methods 0.000 claims abstract description 64
- 238000004537 pulping Methods 0.000 claims abstract description 32
- 238000002156 mixing Methods 0.000 claims abstract description 29
- 239000000843 powder Substances 0.000 claims abstract description 27
- 239000002002 slurry Substances 0.000 claims description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
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- 238000005303 weighing Methods 0.000 description 3
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Abstract
A poor cementing material concrete production facility, including several aggregate storage silos, use the powder storage silo, the bottom of each aggregate storage silo installs the vibrating feeder, there are aggregate measuring belts below the vibrating feeder, the discharge port of a plurality of aggregate measuring belts locates above the aggregate conveying belt, the discharge port of the aggregate conveying belt locates above the feed inlet of the agitator; the discharge port of the powder storage bin is provided with a screw conveyor, the discharge port of the screw conveyor is connected with the powder feed port of a pulping machine of the cement paste production and storage system, and the discharge port of the cement paste production and storage system is connected with the feed port of the stirring machine; the mixer comprises a mixing drum which is obliquely arranged, a plurality of groups of mixing blades are arranged in the mixing drum, each group of mixing blades are uniformly distributed on the circumference of the mixing drum, the mixing blades and the axis of the mixing drum are arranged in an angle mode, the mixing blades of adjacent groups are staggered, and a discharge port of the mixer is provided with a finished product conveying system.
Description
Technical Field
The invention belongs to the technical field of concrete production equipment, and particularly relates to poor cementing material concrete production equipment and a production process thereof.
Background
The poor cementing material concrete, namely the cemented Sand Gravel (Cement Sand and Gravel), is a novel damming material which is invisibly raised in China in recent years, namely, the poor cementing material concrete is prepared by adding water and a small amount of cementing materials (Cement and fly ash) into local ready-made natural Sand Gravel materials or other excavation waste slag, then mixing by using a simple mixing device, vibrating, compacting and solidifying. The formula of the CSG concrete at home and abroad is shown in figure 1.
The CSG integrates the advantages of a concrete faced rockfill dam and a rolling concrete dam, and is a new dam between the concrete faced rockfill dam and the rolling concrete dam, which is called as a third-generation dam. The CSG uses local materials, can greatly save the construction cost, can adopt complete set of mechanized construction, and can improve the construction efficiency. CSG requirement for blending: large yield, large particle size (>150mm), and workability.
At present, the research on continuous gelled sand gravel mixing equipment is developed by China Water conservancy and hydropower science research institute and Liaoning Hainuo construction machinery group Limited, and in patents CN103432938A, CN203844015U and CN104227848B, gelled sand gravel mixing equipment, a continuous roller stirrer and an intelligent control system are introduced, so that the equipment has the characteristics of high proportioning precision, high yield, simplicity in control and the like. In practical engineering applications, there are also some problems, mainly: (1) because the dosage of the poor cementing material concrete powder and the water reducing agent is less, the aggregate particle size is large, the stirring time of the continuous drum mixer is short, the powder and the water reducing agent are not easy to stir uniformly, and the condition of nonuniform slurry wrapping on the surface of the aggregate occurs, thereby affecting the quality of the concrete; (2) when the particle size of the aggregate is larger than 150mm, the blockage at the discharge port of the stirrer is easy to occur; (3) the storage mode of finished concrete is limited, continuous production cannot be realized, and the production efficiency is influenced; (4) when the finished concrete is stored at a large height difference, the aggregate separation phenomenon is easy to occur; (5) because the powder is directly added into the stirrer, the dust pollution is great in the production process.
Disclosure of Invention
Aiming at the technical problems existing at present, the invention provides the production equipment and the production process for the poor cementing material concrete, which can effectively prevent aggregate separation of finished concrete, can stir materials more uniformly, improve the stirring quality of the concrete, simultaneously can effectively reduce dust in the production process, and can adapt to stirring and discharging of aggregates with large particle size (300 mm).
The technical scheme adopted by the invention is as follows:
a poor cementitious material concrete production facility which characterized in that: the aggregate storage bin is used for storing graded or mixed aggregates, and the powder storage bin is used for storing raw materials of cement and coal ash;
the discharge port of the powder storage bin is provided with a screw conveyor, the discharge port of the screw conveyor is connected with the powder feed port of a pulping machine of a cement paste production and storage system, and the discharge port of the cement paste production and storage system is connected with the feed port of a stirrer;
the stirring machine comprises an obliquely arranged stirring barrel, a plurality of groups of stirring blades for fully stirring cement paste and aggregate and gradually leading the material out to a discharge port are sequentially arranged in the stirring barrel from the feed port to the discharge port, each group of the stirring blades is uniformly distributed on the circumference of the stirring barrel, the stirring blades and the axis of the stirring barrel are arranged in an angle manner, the stirring blades of adjacent groups are arranged in a staggered manner, and the discharge port of the stirring machine is provided with a finished product conveying system;
aggregate metering belt, vibrating feeder, aggregate conveying belt, screw conveyer, grout production storage system, mixer, finished product conveying system all with control system electric connection.
Furthermore, the stirring machine further comprises a driving device, the driving device comprises two rolling ways which are fixed on the excircle of the stirring cylinder along the axis, the excircle of each rolling way is in radial contact with two friction wheels, and each friction wheel is independently provided with one set of starting system.
Further, be close to the equipartition on the circumference of discharge gate in the churn and have the row's of leading blade of leading with the material to arrange to ejection of compact blade, it is located last a set of stirring vane's rear side to lead row blade, the axis that draws row blade and churn becomes the angle setting, the equipartition has the ejection of compact blade that is used for guaranteeing the material promotion ejection of compact on the ejection of compact conic section circumference of churn.
Further, a detachable wear-resistant lining plate is installed in the stirring cylinder.
Further, the cement paste production and storage system comprises a water tank, a plurality of additive tanks and pipelines, a pulping machine, a cement paste storage barrel and a cement paste conveying system; each admixture and pipeline is connected with a metering scale hopper for metering the admixture, and a discharge opening of the metering scale hopper is connected with an admixture feed inlet of the pulping machine; the water tank is connected with a water feeding hole of the pulping machine through a water conveying pipeline with a batching valve; the top of the pulping machine is provided with a feeding hole for powder, water and an additive, the lower part of the pulping machine is provided with a pulp outlet, and the pulp outlet is connected with a pulp storage barrel; the slurry storage barrel is connected with a cement slurry conveying system, and a discharge hole of the cement slurry conveying system is connected with a feed hole of the stirrer.
Furthermore, the pulp storage barrel, the metering scale bucket and the pulping machine are all provided with metering sensors for metering corresponding materials.
Further, a slurry pump and a flowmeter are installed on the cement slurry conveying system, the slurry pump adopts variable frequency control, and the slurry flow is adjusted according to the aggregate feeding capacity and the flowmeter feedback data.
Further, install the agitator that prevents the grout deposit in the storage barrel, the capacity of storage barrel is greater than 2 times of pulping machine capacity.
Further, finished product conveying system includes the belt feeder, install the rotation mechanism that drives its rotation and realize the extension of plane cloth position on the belt feeder, install on the belt feeder and drive it and raise and realize the pitching mechanism that the material pile is high, or the outer end below of belt feeder is provided with telescopic hopper.
The production process of the poor cementing material concrete production equipment comprises the following specific steps:
s1, periodically mixing powder, additives and water into high-concentration cement paste through a cement paste production and storage system, and storing the high-concentration cement paste in a cement paste storage barrel for continuously stirring the cement paste;
s2, conveying various aggregates to an aggregate conveying belt, mixing, and continuously conveying and feeding;
s3, uniformly spreading cement paste on the mixed aggregate at the feed inlet of the stirrer, and simultaneously entering the stirrer;
s4, stirring and mixing the materials under the driving of a stirring blade in the stirrer, and generating forward spiral motion to finish the production of the poor cementing material concrete;
and S5, discharging the stirred and mixed material into a finished product conveying system from a discharge hole after passing through the guide blade and the discharge blade. The invention adopts a secondary stirring process, and simultaneously adopts a production flow of periodic pulping and continuous stirring, namely, the quality of cement paste with precision is ensured, a periodic weighing hopper is adopted for batch preparation, the produced cement paste is firstly stored, the aggregate adopts a continuous feeding mode, the cement paste is spread according to the formula according to the flow of the aggregate, the continuous feeding and discharging of a stirrer are realized, the continuous production of concrete is realized, and the production capacity of the cement paste in the system is larger than the maximum conveying capacity of the aggregate.
The invention has the beneficial effects that:
1. by adopting a secondary stirring process of firstly stirring cement paste and then stirring, the materials can be stirred more uniformly, the stirring quality of concrete is improved, and meanwhile, the dust in the production process can be effectively reduced;
2. the production process combining the periodic type and the continuous type in advance is adopted, the cement paste is prepared periodically to ensure the quality of the cement paste, and the cement paste is fully mixed in advance, so that the stirring time of the concrete can be greatly shortened, the stirring quality of the concrete can be ensured, and the production efficiency can be improved;
3. the blades of the stirrer are arranged, so that the concrete can be fully mixed, and the stirring and discharging of the large-particle-size aggregate (300mm) can be adapted;
4. adopt and to be suitable for the discharge system that finished product concrete piles up the height variation, effectively prevent finished product concrete aggregate separation.
Drawings
FIG. 1 is a table of CSG concrete formulations at home and abroad.
Fig. 2 is a front view of the present invention.
Fig. 3 is a top view of the present invention.
FIG. 4 is a schematic view of a blender liner and blade arrangement of the present invention.
Fig. 5 is a schematic view of a first configuration of the product conveying system of the present invention.
Fig. 6 is a second schematic representation of the product delivery system of the present invention.
FIG. 7 is a schematic process flow diagram of the present invention.
Detailed Description
The present invention is further illustrated by the following examples, which are not intended to limit the invention to these embodiments. It will be appreciated by those skilled in the art that the present invention encompasses all alternatives, modifications and equivalents as may be included within the scope of the claims.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "a plurality" means two or more unless explicitly defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example one
Referring to fig. 2-5, the embodiment provides a poor cementing material concrete production device, which comprises an aggregate storage bin 1, a vibrating feeder 2, an aggregate metering belt 3, an aggregate conveying belt 4, a powder storage bin 5, a screw conveyor 6, a cement slurry production storage system 7, a mixer 8, a finished product conveying system 9 and a control system 10.
The embodiment is provided with a plurality of aggregate storage bins 1 for storing graded or mixed aggregates, wherein the aggregate storage bins are concrete or steel structure bins; a vibrating feeder 2 for discharging aggregate is mounted at the bottom of each aggregate storage bin 1, an aggregate metering belt 3 for weighing aggregate is arranged below the vibrating feeder 2, discharge ports of a plurality of aggregate metering belts 3 are all positioned above an aggregate conveying belt 4 for mixing and conveying aggregate, and discharge ports of the aggregate conveying belt 4 are positioned above a feed port of a stirrer 8; the vibrating feeder 2 of the invention drops into the aggregate metering belt 3 after discharging, the control system 10 controls the frequency of the vibrating feeder 2 and the discharging amount of the aggregate according to the measured aggregate weight of the metering belt, and various metered aggregates are mixed in the aggregate conveying belt 4 and then conveyed into the mixer 8.
The discharge hole of the powder storage bin 5 in this embodiment is provided with a screw conveyor 6, the discharge hole of the screw conveyor 6 is connected with the powder feed inlet of a slurrying machine 76 of a cement slurry production storage system 7, and the discharge hole of the cement slurry production storage system 7 is connected with the feed inlet of a stirring machine 8; the powder storage bin 5 is used for storing raw materials such as cement, fly ash and the like, and supplies materials to a cement paste production system 7 through a screw conveyor 6; and the cement paste produced by the cement paste production system 7 is mixed with aggregate and then enters the stirring machine 8.
Referring to fig. 7, the cement slurry production and storage system 7 according to the present embodiment includes a water tank 71, a water pipeline (including a batching valve) 72, a plurality of additive tanks and pipelines (including a pump and a valve) 73, an additive metering scale bucket 74, a metering sensor 75, a pulper 76, a slurry storage barrel 77, and a cement slurry conveying system 78. Each admixture and pipeline 73 is used for storing concrete additives, generally a steel or plastic box or barrel, and is connected with a metering scale bucket 74 for metering the admixture through a pump and a pipeline, the metering scale bucket 74 is a stainless steel round and is arranged in a hanging way through a metering sensor 75, and a discharge opening of the metering scale bucket 74 is connected with an admixture feed inlet of a pulping machine 76; the water tank 1 is used for storing production water and is connected with a water inlet of a pulping machine 76 through a water conveying pipeline 72 with a batching valve; the top of the pulping machine 76 is provided with feed inlets for powder, water and an additive to realize the stirring and mixing of the powder, the water and the additive, the pulping machine is provided with a metering sensor 75 which can meter the quantity of various materials in an accumulated way, the lower part of the pulping machine is provided with a slurry outlet, and the mixed cement slurry is sent into a slurry storage barrel 77 by a pipeline to be temporarily stored for standby; the mud storage barrel 77 is provided with a stirrer and a metering sensor 75, the stirrer can prevent cement slurry from precipitating, the metering sensor 75 can measure the stock of the cement slurry, the capacity of the mud storage barrel 77 is 2 times larger than that of the pulping machine, the mud storage barrel 77 is connected with a cement slurry conveying system 78, a discharge port of the cement slurry conveying system 78 is connected with a feed port of the stirrer 8, the cement slurry conveying system 78 is provided with a mud pump and a flow meter, and the mud pump adopts frequency conversion control and can adjust the mud flow according to the aggregate feeding capacity and the feedback data of the flow meter.
The stirring machine 8 comprises a stirring cylinder 81 and a driving device 82 which are obliquely arranged, wherein the stirring cylinder 81 is integrally and forwardly and downwardly inclined by about 3 degrees, so that the material is conveniently discharged. The driving device 82 comprises two raceways fixed along the axis on the outer circle of the mixing drum, the outer circle of each raceway radially contacts two friction wheels (also serving as supporting wheels), and each friction wheel is independently provided with a set of starting system. A plurality of groups of stirring blades 84 for fully stirring cement paste and aggregate and gradually leading the material out to a discharge port are sequentially arranged in the stirring cylinder 81 from the feed port to the discharge port, in the embodiment, 7 groups of stirring blades 84 are arranged, 6 stirring blades 84 are arranged in each group, the stirring blades 84 are uniformly distributed on the circumference of the stirring cylinder 81, the stirring blades and the axis of the stirring cylinder are arranged in a 12-degree angle, the stirring blades of adjacent groups are staggered by 50 degrees, the material is ensured to be gradually moved to the discharge port while being fully stirred, and a finished product conveying system 9 is arranged at the discharge port of the stirrer 8; the equipartition has 3 that lead the material to discharge blade to draw row blade 85 on being close to the circumference of discharge gate in churn 81, it is located the rear side of last a set of stirring vane 84 to lead row blade 85, the axis that leads row blade 85 and churn 81 becomes 15 degrees angle settings, the equipartition has 3 discharge blade 86 that are used for guaranteeing the material promotion ejection of compact on the ejection of compact conic section circumference of churn 81. A detachable wear-resistant lining plate 83 is arranged in the stirring cylinder 81. All lining plates 83 and blades are detachable and made of polyurethane materials. According to the invention, a plurality of groups of stirring blades 84 are arranged in the stirrer 8, so that cement paste and aggregate can be fully stirred, the materials are pushed to move towards the mouth, and the aggregate flows out of a discharge port of the stirrer 8 and then falls into the finished product conveying system 9.
This embodiment finished product conveying system 9 is used for the transportation of finished product concrete, is connected with 8 discharge gates of mixer, including belt feeder 91, install the rotation mechanism 92 that drives its rotation and realize the extension of plane cloth position on the belt feeder 91, install on the belt feeder 91 and drive it and raise and realize the pitching mechanism 93 that the material pile is high. This embodiment finished product conveying system 9 adopts rotatory belt system of facing upward, and when beginning windrow, belt feeder 91 is in the horizontality, and along with piling up of finished product concrete, can raise the aircraft nose gradually through pitching mechanism 93, makes and keeps a reasonable drop between aircraft nose and the windrow, prevents that the concrete from separating at the in-process of whereabouts, and after accomplishing piling up in certain region, can realize the fan-shaped translation of belt level through rotation mechanism 92, increases the storage yard area.
According to the invention, a secondary stirring process of firstly stirring cement paste and then stirring is adopted, so that the materials can be stirred more uniformly, the stirring quality of concrete is improved, and meanwhile, the dust in the production process can be effectively reduced; the production process combining the periodic production process and the continuous production process is adopted, the cement paste is prepared periodically to ensure the quality of the cement paste, and the continuous production improves the production efficiency; the blades of the stirrer are arranged, so that the concrete can be fully mixed, and the stirring and discharging of the large-particle-size aggregate (300mm) can be adapted; adopt and to be suitable for the discharge system that finished product concrete piles up the height variation, effectively prevent finished product concrete aggregate separation.
Example two
Referring to fig. 6, the present embodiment is different from the first embodiment in that: a telescopic hopper 94 is arranged below the outer end of the belt conveyor 91. The finished product conveying system 9 of the embodiment adopts the fixed rotating belt and the telescopic hopper 94, the belt conveyor 91 is always in the upward-facing state, when the stacking is started, the telescopic hopper 94 is placed at the lowest position, along with the accumulation of the finished product concrete, the detection is carried out according to the level indicator, through the lifting hopper, a reasonable fall is kept between the discharge port of the hopper and the material pile, the separation of the concrete in the falling process is prevented, after the accumulation of a certain area is completed, the horizontal fan-shaped translation of the belt can be realized through the swing mechanism 92, and the area of a storage yard is increased.
The rest of the structure and the functions can be seen in the first embodiment.
Example two
The embodiment provides a production process of the lean cementitious material concrete production equipment, which comprises the following specific steps:
s1, periodically mixing the powder, the admixture and the water into high-concentration cement paste through the cement paste production and storage system 7, and storing the high-concentration cement paste in a cement paste storage barrel 77 for continuously stirring the cement paste;
s2, conveying various aggregates to the aggregate conveying belt 4, mixing, and continuously conveying and feeding;
s3, uniformly spreading cement paste on the mixed aggregate at the feed inlet of the stirrer 8, and simultaneously entering the stirrer 8;
s4, stirring and mixing the materials under the driving of the stirring blade 84 in the stirrer 8, and generating forward spiral motion to finish the production of the poor cementing material concrete;
and S5, discharging the stirred and mixed material into the finished product conveying system 9 from the discharge port after passing through the guide and discharge blade 85 and the discharge blade 86.
Specifically, after the system is started, according to the required yield and formula, the cement slurry production and storage system 7 starts to work, firstly, a water distribution valve in a water conveying pipeline 72 is opened, clean water in the water tank is filled into the pulping machine 76, a metering sensor 75 detects the filling amount of water in real time, after the design requirement is met, filling is stopped, a spiral conveyor 6 is started, powder is filled into the pulping machine 76, after the powder is filled to the design weight, filling of another powder is started, the pulping machine 76 is a stirring container and is also a metering container, meanwhile, an additive is mixed into a metering scale hopper 74 through a pipeline, according to the feedback weight of the metering sensor 75, mixing is stopped, various mixing is completed, after the powder mixing is completed, the additive in the metering scale hopper 74 is filled into the pulping machine 76, stirring of the cement slurry is started, after the stirring is completed, the cement slurry is filled into a slurry storage barrel 77 for storage and standby, the pulping system starts to mix the cement slurry in the next period, when the cement slurry in the slurry storage barrel 77 reaches a certain amount, the pulping system stops working, and when the cement slurry in the slurry storage barrel 77 is consumed to a certain amount, the pulping system is restarted.
When the cement slurry in the first tank is stirred, the vibrating feeder 2 starts to work, aggregate is conveyed to the metering belt 3 from the aggregate storage bin 1, the metering belt detects the weight of the material, the vibration frequency of the vibrating feeder 2 is adjusted according to the weight and the yield requirement, the feeding quantity of the aggregate is increased or reduced, the supply capacity of the cement slurry in the cement slurry conveying system 78 is determined according to feedback data of the metering belt, the frequency of a mud pump is determined, the mud pump is started, the aggregate is conveyed through the conveying belt, mixed with the cement slurry conveyed by the cement slurry conveying system 78 at the feeding port of the mixer 8 and enters the mixer 8 at the same time, the material is stirred and mixed inside under the driving of a mixer blade, forward spiral motion is generated, and the material is discharged into the finished product conveying system 9 from the discharging port after the rotation frequency of the material is not less than 6 weeks.
The invention adopts a secondary stirring process, and simultaneously adopts a production flow of periodic pulping and continuous stirring, namely, the quality of cement paste with precision is ensured, a periodic weighing hopper is adopted for batch preparation, the produced cement paste is firstly stored, the aggregate adopts a continuous feeding mode, the cement paste is spread according to the formula according to the flow of the aggregate, the continuous feeding and discharging of a stirrer are realized, the continuous production of concrete is realized, and the production capacity of the cement paste in the system is larger than the maximum conveying capacity of the aggregate.
Claims (10)
1. A poor cementitious material concrete production facility which characterized in that: the aggregate storage bin is used for storing graded or mixed aggregates, and the powder storage bin is used for storing raw materials of cement and coal ash;
the discharge port of the powder storage bin is provided with a screw conveyor, the discharge port of the screw conveyor is connected with the powder feed port of a pulping machine of a cement paste production and storage system, and the discharge port of the cement paste production and storage system is connected with the feed port of a stirrer;
the stirring machine comprises an obliquely arranged stirring barrel, a plurality of groups of stirring blades for fully stirring cement paste and aggregate and gradually leading the material out to a discharge port are sequentially arranged in the stirring barrel from the feed port to the discharge port, each group of the stirring blades is uniformly distributed on the circumference of the stirring barrel, the stirring blades and the axis of the stirring barrel are arranged in an angle manner, the stirring blades of adjacent groups are arranged in a staggered manner, and the discharge port of the stirring machine is provided with a finished product conveying system;
aggregate metering belt, vibrating feeder, aggregate conveying belt, screw conveyer, grout production storage system, mixer, finished product conveying system all with control system electric connection.
2. The apparatus for producing cement-poor concrete according to claim 1, wherein: the stirring machine further comprises a driving device, the driving device comprises two rolling ways which are fixed along the axis on the excircle of the stirring cylinder, the excircle of each rolling way is in radial contact with two friction wheels, and each friction wheel is independently provided with one set of starting system.
3. The apparatus for producing cement-poor concrete according to claim 1, wherein: the equipartition has the row's of leading blade of leading of arranging to ejection of compact blade with the material on the circumference that is close to the discharge gate in the churn, it is located last a set of stirring vane's rear side to lead row blade, the axis that leads row blade and churn becomes angle setting, the equipartition has the ejection of compact blade that is used for guaranteeing the material promotion ejection of compact on the ejection of compact conic section circumference of churn.
4. The apparatus for producing cement-poor concrete according to claim 1, wherein: and a detachable wear-resistant lining plate is arranged in the mixing drum.
5. A cement poor concrete production plant according to any one of claims 1 to 4, characterized in that: the cement paste production and storage system comprises a water tank, a plurality of additive tanks and pipelines, a pulping machine, a cement paste storage barrel and a cement paste conveying system; each admixture and pipeline is connected with a metering scale hopper for metering the admixture, and a discharge opening of the metering scale hopper is connected with an admixture feed inlet of the pulping machine; the water tank is connected with a water feeding hole of the pulping machine through a water conveying pipeline with a batching valve; the top of the pulping machine is provided with a feeding hole for powder, water and an additive, the lower part of the pulping machine is provided with a pulp outlet, and the pulp outlet is connected with a pulp storage barrel; the slurry storage barrel is connected with a cement slurry conveying system, and a discharge hole of the cement slurry conveying system is connected with a feed hole of the stirrer.
6. A cement poor concrete production plant according to claim 5, characterized in that: and the pulp storage barrel, the measuring scale hopper and the pulping machine are all provided with measuring sensors for measuring corresponding materials.
7. A cement poor concrete production plant according to claim 5, characterized in that: and the slurry pump adopts frequency conversion control and adjusts the slurry flow according to the aggregate feeding capacity and the flowmeter feedback data.
8. A cement poor concrete production plant according to claim 5, characterized in that: the mortar storage barrel is internally provided with a stirrer for preventing cement mortar from precipitating, and the capacity of the mortar storage barrel is 2 times larger than that of the pulping machine.
9. The apparatus for producing cement-poor concrete according to claim 1, wherein: finished product conveying system includes the belt feeder, install the rotation mechanism that drives its rotation and realize the extension of plane cloth position on the belt feeder, install on the belt feeder and drive it and raise and realize the pitching mechanism that the material pile is high, perhaps the outer end below of belt feeder is provided with telescopic hopper.
10. The production process of the cement-poor concrete production equipment according to claim 1, which comprises the following specific steps:
s1, periodically mixing powder, additives and water into high-concentration cement paste through a cement paste production and storage system, and storing the high-concentration cement paste in a cement paste storage barrel for continuously stirring the cement paste;
s2, conveying various aggregates to an aggregate conveying belt, mixing, and continuously conveying and feeding;
s3, uniformly spreading cement paste on the mixed aggregate at the feed inlet of the stirrer, and simultaneously entering the stirrer;
s4, stirring and mixing the materials under the driving of a stirring blade in the stirrer, and generating forward spiral motion to finish the production of the poor cementing material concrete;
and S5, discharging the stirred and mixed material into a finished product conveying system from a discharge hole after passing through the guide blade and the discharge blade.
Applications Claiming Priority (2)
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