CN214819591U

CN214819591U - Concrete mixing plant

Info

Publication number: CN214819591U
Application number: CN202023253948.8U
Authority: CN
Inventors: 高鑫; 刘健
Original assignee: Tianjin Jianning Concrete Co ltd
Current assignee: Tianjin Jianning Concrete Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-11-23
Anticipated expiration: 2030-12-29

Abstract

The utility model discloses a concrete mixing plant, including storage system, measurement system, conveying system, mixing system, main building frame, measurement system will aggregate in the storage system is measured and is sent into with the batching conveying system, conveying system will aggregate in the storage system transports extremely with the batching mixing system, measurement system includes aggregate measurement portion, aggregate measurement portion includes aggregate weighing hopper, weighing sensor, be equipped with screening mechanism between aggregate storage silo and the aggregate weighing hopper, screening mechanism includes screening subassembly, processing module, screening subassembly sends loose aggregate into the aggregate weighing hopper, screening subassembly screens out and gets into the aggregate of caking processing module carries out loose processing. The beneficial effects of the utility model are that, through the state homogenization of screening mechanism with the aggregate, the concrete that forms through the stirring is also more even, of high quality.

Description

Concrete mixing plant

Technical Field

The utility model relates to a concrete preparation equipment technical field, especially a concrete mixing plant.

Background

The concrete mixing plant is a complete set of equipment for mixing concrete, and has the function of mixing the raw materials of concrete, such as cement, admixture, water, sand, stone, additive and the like according to a preset mixing ratio. And respectively carrying out feeding, conveying, storing, proportioning, weighing, stirring and discharging to produce the finished concrete meeting the quality requirement. In the prior art, aggregate is often directly conveyed to a metering mechanism by a storage bin to be weighed and then conveyed into a stirrer to be mixed and stirred, and concrete aggregate refers to granular loose materials which play a role in framework or filling in concrete. The aggregate is divided into coarse aggregate and fine aggregate. The coarse aggregate refers to pebbles, broken stones and the like, and the fine aggregate refers to natural sand, artificial sand and the like. The fine aggregate may be agglomerated when naturally placed, and the direct feeding of the agglomerated aggregate into the mixer affects the uniformity of the concrete product.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problems, the concrete mixing plant is designed, which comprises a material storage system, a metering system, a conveying system, a mixing system and a main building frame, wherein the metering system meters and feeds aggregate and ingredients in the material storage system into the conveying system, and the conveying system conveys the aggregate and ingredients in the material storage system to the mixing system;

the storage system includes aggregate storage portion and batching storage portion, aggregate storage portion includes aggregate storage silo, the measurement system includes aggregate measurement portion, aggregate measurement portion includes aggregate weighing hopper, weighing sensor, be equipped with screening mechanism between aggregate storage silo and the aggregate weighing hopper, screening mechanism includes screening subassembly, processing module, the screening subassembly sends loose aggregate into the aggregate weighing hopper, the screening subassembly sieves out and gets into with the aggregate of caking the processing module carries out loose processing.

The screening subassembly includes screening case, first screen cloth, the first screen cloth of filtration dispersed state aggregate is installed to the screening incasement, the screening case is linked together through communicating pipe with the processing subassembly, the processing subassembly is including handling the box, handle box internally mounted and have the rubbing crusher who can follow vertical direction motion, rubbing crusher disperses the aggregate of caking to open.

The crushing mechanism comprises a crushing plate and crushing teeth fixed on the crushing plate, the crushing plate is fixedly connected with the cylinder, and the cylinder is fixed on the inner wall of the treatment box.

The first screen is obliquely arranged towards the direction of the communication pipeline.

The batching storage part comprises a powder tank, a water tank and an additive tank for storing different admixtures, and the aggregate and the batching in the storage system are conveyed to the stirring system by the conveying system.

The two sides of the conveying system are respectively communicated with a metering system and a stirring system, the conveying system comprises an aggregate conveying part and an admixture conveying part, the aggregate conveying part is a belt conveyor, and the admixture conveying part is a screw conveyor.

The belt conveyor comprises a horizontal belt conveyor and an inclined belt conveyor.

The outlet of the screw conveyor is communicated with an adjusting mechanism, the adjusting mechanism comprises a buffer hopper, the buffer hopper is arranged at the outlet of the adjusting mechanism, the buffer hopper comprises a first cavity and a second cavity, control valves are arranged at the outlets of the first cavity and the second cavity, and the discharge capacity of the first cavity is larger than that of the second cavity.

The aggregate storage bin comprises a silo body, one side of the silo body for discharging is a conical cylinder, an arch breaking device is arranged on the wall of the conical cylinder, the arch breaking device comprises a rotary cylinder arranged on the wall of the conical cylinder, the rotary cylinder is connected with one end of a rotating rod, the other end of the rotating rod extends into the conical cylinder, and an acute included angle is formed between the rotating rod and the central axis of the silo body.

Utilize the technical scheme of the utility model a concrete mixing plant of preparation, the beneficial effect who reaches: aggregate components enter a screening box through an aggregate storage bin, pebbles with large particle sizes, broken stones and loose fine sand are screened into a metering hopper by a first screen, and agglomerated aggregates with larger volumes enter a treatment box through a communicating pipe to be scattered. The cylinder drives the crushing plate to move downwards after being started, the crushing ruler continuously hammers the agglomerated aggregate to scatter the aggregate, the aggregate enters the aggregate weighing hopper, the state of the aggregate is homogenized through the screening mechanism, and the concrete formed through stirring is relatively uniform and good in quality.

Drawings

FIG. 1 is a front view of a concrete mixing plant according to the present invention;

FIG. 2 is a top view of a concrete mixing plant according to the present invention;

FIG. 3 is a partial enlarged view of a concrete mixing plant according to the present invention at the marked point A;

in the figure, 1, a stirring system; 2. a main building frame; 3. an aggregate storage part; 4. a burden storage part; 5. An aggregate storage bin; 6. an aggregate weighing hopper; 7. a tapered barrel; 8. a screening mechanism; 9. a screen assembly; 10. A rotating rod; 11. a processing component; 12. screening the box; 13. a first screen; 14. a communicating pipe; 15. a treatment tank; 16. a rotating cylinder; 17. a crushing plate; 18. a cylinder; 19. a powder tank; 20. an aggregate conveying part; 21. a horizontal belt conveyor; 22. an inclined belt conveyor; 23. a screw conveyor; 24. an adjustment mechanism; 25. caching buckets; 26. a first cavity; 27. a second cavity; 28. a control valve; 29. a silo body.

Detailed Description

For a better understanding of the present invention, the present invention will be further described with reference to the following specific embodiments and accompanying drawings, which are illustrated in fig. 1-3, and a concrete mixing plant. Including storage system, measurement system, conveying system, mixing system 1, main building frame 2, measurement system will aggregate in the storage system is measured with the batching and is sent into conveying system, conveying system will aggregate in the storage system is transported with the batching and is extremely mixing system 1 stirs, forms the concrete mixing material at last.

The storage system includes aggregate storage portion 3 and batching storage portion 4, aggregate storage portion 3 includes aggregate storage silo 5, the measurement system includes aggregate measurement portion, aggregate measurement portion includes aggregate weighing hopper 6, weighing sensor, be equipped with screening mechanism 8 between aggregate storage silo 5 and the aggregate weighing hopper 6, screening mechanism 8 includes screening subassembly 9, processing unit 11, screening subassembly 9 sends loose aggregate into aggregate weighing hopper 6, screening subassembly 9 screens out and enters the aggregate of caking processing unit 11 carries out loose processing. Concrete aggregate refers to a granular loose material that plays a role of a skeleton or filling in concrete. The aggregate is divided into coarse aggregate and fine aggregate. The coarse aggregate refers to pebbles, broken stones and the like, and the fine aggregate refers to natural sand, artificial sand and the like. When the fine aggregate is naturally placed, the caking phenomenon may occur, loose aggregate which is not caked and aggregate with large particle size are screened out by the screening mechanism 8 and directly enter the aggregate weighing hopper 6, and the caking is scattered by treating the aggregate for the fine sand aggregate which is serious to the caking and then enters the aggregate weighing hopper 6.

As shown in fig. 3, the screening assembly 9 includes a screening box 12 and a first screen 13, the first screen 13 for filtering aggregate in a dispersed state is installed in the screening box 12, the screening box 12 is communicated with the processing assembly 11 through a communicating pipe 14, the processing assembly 11 includes a processing box 15, a crushing mechanism capable of moving in a vertical direction is installed in the processing box 15, and the crushing mechanism disperses agglomerated aggregate. Crushing mechanism includes crushing board 17 and fixes the crushing tooth on crushing board 17, crushing board 17 and cylinder 18 fixed connection, cylinder 18 is fixed handle case 15 inner wall. Aggregate components enter a screening box 12 through an aggregate storage bin 5, pebbles with large particle sizes, broken stones and loose fine sand are screened into a weighing hopper by a first screen 13, and agglomerated aggregates with larger volumes enter a treatment box 15 through a communicating pipe 14 to be scattered. The cylinder 18 is started to drive the crushing plate 17 and the crushing teeth to move downwards, the crushing teeth continuously hammer the agglomerated aggregate to scatter the aggregate, and then the agglomerated aggregate enters the aggregate metering hopper 6, wherein the position of the communicating pipe 14 on the processing box 15 is lower than the lowest position of the cylinder body of the cylinder 18, so that the phenomenon that the work of the cylinder 18 is influenced by excessive fine sand is avoided.

As shown in fig. 3, the first mesh 13 is disposed to be inclined toward the direction of the communication pipe 14. The aggregate that first screen cloth 13 slope setting can accelerate the caking moves to handling case 15 in, improves work efficiency, and is simultaneously through the state homogenization of screening mechanism 8 with the aggregate, and the concrete that forms through the stirring is also relatively more even, of high quality.

As shown in fig. 2, the ingredient storage part 4 includes a powder tank 19 for storing different admixtures, a water tank, and an additive tank, and the conveying system conveys the aggregates and the ingredients in the storage system to the stirring system 1. In the embodiment, four powder tanks 19 are used for respectively filling cement, coal ash, mineral powder and an expanding agent, and some additives and a proper amount of hydrosolvent are required in processing concrete, the additives are filled into an additive tank, and water is stored in a water pool. The two sides of the conveying system are respectively communicated with a metering system and a stirring system 1, the conveying system comprises an aggregate conveying part 20 and an admixture conveying part, the aggregate conveying part 20 is a belt conveyor, and the admixture conveying part is a screw conveyor 23.

The belt conveyor includes a horizontal belt conveyor 21 and an inclined belt conveyor 22.

An outlet of the screw conveyor 23 is communicated with an adjusting mechanism 24, the adjusting mechanism 24 includes a buffer hopper 25, the buffer hopper 25 is arranged at an outlet of the adjusting mechanism 24, the buffer hopper 25 includes a first cavity 26 and a second cavity 27, control valves 28 are installed at outlets of the first cavity 26 and the second cavity 27, and a discharge capacity of the first cavity 26 is greater than a discharge capacity of the second cavity 27. Because different materials are required, the quality of concrete can be influenced due to small errors of the dosage added into the stirring system 1, an adjusting mechanism 24 is arranged at the outlet end of a spiral conveying fan for conveying the expanding agent, the adjusting mechanism 24 adjusts the dosage added into the stirring system 1, when the expanding agent is conveyed into a buffer hopper 25 through a spiral conveyor 23, the expanding agent immediately enters two cavities of the buffer hopper 25, the dosage of the expanding agent entering the stirring system 1 is controlled by arranging two control valves 28, the first cavity 26 and the corresponding control valve 28 are added with large dosage, and the second cavity 27 and the corresponding control valve 28 are greatly adjusted with micro dosage.

As shown in fig. 3, the aggregate storage silo 5 includes a silo body 29, a conical cylinder 7 is arranged on one discharging side of the silo body 29, an arch breaking device is arranged on the wall of the conical cylinder 7, the arch breaking device includes a rotary cylinder 16 arranged on the wall of the conical cylinder 7, the rotary cylinder 16 is connected with one end of a rotating rod 10, the other end of the rotating rod 10 extends into the conical cylinder 7, and an acute included angle is formed between the rotating rod 10 and the central axis of the silo body 29.

If the powder in the silo is affected with damp or the accumulation time is too long, the powder in the silo can be caused to arch or agglomerate, wherein the arching of the powder refers to a phenomenon similar to an arch bridge due to unsmooth flowing of the powder. In order to prevent the arching phenomenon of the powder, the rotary cylinder 16 is started to drive the rotary rod 10 to rotate, the outer wall of the rotary rod 10 is provided with a crushing piece, the rotary rod 10 rotates and stirs the powder at the conical bottom of the silo, and the crushing piece is in contact with the aggregate, so that the arching of the powder is realized. In order to achieve a better arch breaking effect, a plurality of arch breaking structures can be arranged at the conical bottom.

The metering system comprises an aggregate metering part, a powder metering part, a water metering part and an additive metering part, wherein the aggregate metering part comprises an aggregate metering hopper 6 and a weighing sensor, the powder metering part comprises a powder metering hopper, a weighing sensor and a pneumatic spherical vibrator, the weighing sensor is fixed on the outer wall of the powder metering hopper with the pneumatic spherical vibrator, the water metering part comprises a water inlet pipe, a sensor and a water metering hopper, the water inlet pipe is communicated with the water metering hopper, the sensor is fixed on the metering hopper, the additive metering part comprises an additive metering hopper and a sensor, and the sensor is fixed on the additive metering hopper.

The mixing plant also comprises a liquid supply system, a pneumatic system, a control room, a dust removal system and a sewage treatment system, wherein the metering system is mainly used for metering cement, fly ash and the like, the dust removal system is mainly used for treating dust generated when powder is unloaded into the mixing system 1, the liquid supply system is connected with a mixing main machine cover through a pressure water pump, and meanwhile, the liquid supply system is provided with a measuring hopper for accommodating a water source, so that the water source is provided for mixing concrete. Mixing system 1 includes the mixer, and the mixer is connected with the discharge hopper, and when the concrete mixing completion back, the concrete just loads into the mixing transport vechicle through the discharge hopper.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The concrete mixing plant is characterized by comprising a storage system, a metering system, a conveying system, a mixing system (1) and a main building frame (2), wherein aggregate and ingredients in the storage system are metered by the metering system and are conveyed into the conveying system, and the aggregate and ingredients in the storage system are conveyed to the mixing system (1) by the conveying system;

the storage system includes aggregate storage portion (3) and batching storage portion (4), aggregate storage portion (3) include aggregate storage silo (5), metering system includes aggregate measurement portion, aggregate measurement portion includes aggregate weighing hopper (6), weighing sensor, be equipped with screening mechanism (8) between aggregate storage silo (5) and aggregate weighing hopper (6), screening mechanism (8) are including screening components (9), processing unit (11), screening components (9) send into aggregate weighing hopper (6) with loose aggregate, screening components (9) sieve out and get into the aggregate of caking processing unit (11) carry out loose processing.

2. The concrete mixing plant according to claim 1, characterized in that the screening assembly (9) comprises a screening box (12) and a first screen (13), wherein the screening box (12) is internally provided with the first screen (13) for filtering aggregate in a dispersed state, the screening box (12) is communicated with the processing assembly (11) through a communicating pipe (14), the processing assembly (11) comprises a processing box (15), and a crushing mechanism which can move along a vertical direction is arranged in the processing box (15) and disperses agglomerated aggregate.

3. A concrete mixing plant according to claim 2, characterized in that said crushing means comprise a crushing plate (17) and crushing teeth fixed to the crushing plate (17), said crushing plate (17) being fixedly connected to a cylinder (18), said cylinder (18) being fixed to the inner wall of said treatment tank (15).

4. A concrete mixing plant according to claim 3, characterized in that said first screen (13) is inclined towards the direction of the path of said communicating tubes (14).

5. A concrete mixing plant according to claim 1, characterized in that said ingredient storage (4) comprises a powder tank (19) for storing different admixtures, a water tank, an admixture tank, said conveying system transporting the aggregates and ingredients in said storage system to said mixing system (1).

6. The concrete mixing plant according to claim 1, characterized in that the metering system and the mixing system (1) are respectively connected to two sides of the conveying system, the conveying system comprises an aggregate conveying part (20) and an admixture conveying part, the aggregate conveying part (20) is a belt conveyor, and the admixture conveying part is a screw conveyor (23).

7. A concrete mixing plant according to claim 6, characterized in that said belt conveyors comprise a horizontal belt conveyor (21) and an inclined belt conveyor (22).

8. A concrete mixing plant according to claim 6, characterized in that the outlet of the screw conveyor (23) is communicated with an adjusting mechanism (24), the adjusting mechanism (24) comprises a buffer hopper (25), the buffer hopper (25) is arranged at the outlet of the adjusting mechanism (24), the buffer hopper (25) comprises a first cavity (26) and a second cavity (27), a control valve (28) is arranged at the outlet of the first cavity (26) and the outlet of the second cavity (27), and the discharge capacity of the first cavity (26) is larger than that of the second cavity (27).

9. The concrete mixing plant according to claim 1, wherein the aggregate storage bin (5) comprises a silo body (29), one side of the silo body (29) for discharging is provided with a conical cylinder (7), the wall of the conical cylinder (7) is provided with an arch breaking device, the arch breaking device comprises a rotary cylinder (16) arranged on the wall of the conical cylinder (7), the rotary cylinder (16) and a rotating rod (10) are connected with one end, the other end of the rotating rod (10) extends into the conical cylinder (7), and the rotating rod (10) and the central axis of the silo body (29) form an acute included angle.