Low-carbon machine-made sand self-compacting concrete production line

Abstract

The utility model provides a low-carbon machine-made sand self-compacting concrete production line which comprises an aggregate supply device, a powder supply device and a stirring device, the aggregate supply device comprises an aggregate batcher, a flat belt conveyor arranged at the bottom of the aggregate batcher and an inclined belt conveyor connected with the flat belt conveyor; the powder feeding device comprises a powder bin and a spiral conveyor connected with a discharging port of the powder bin. The stirring device comprises a building frame, an aggregate temporary storage hopper arranged on the building frame, a powder scale arranged on the building frame, and a stirring main machine arranged on the building frame and located below the powder scale, wherein an inlet of the aggregate temporary storage hopper is located below an outlet of the inclined belt conveyor, and an inlet of the powder scale is located below an outlet of the spiral conveyor. A powder inlet is formed in the top face of the stirring main machine, and a powder screening machine located above the powder inlet is arranged on the top face of the stirring main machine. The low-carbon machine-made sand self-compacting concrete production line realizes automatic production of concrete.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of concrete production line especially to a low carbon machine made sand self compacting concrete production line. BACKGROUND

[0002] Self compacting concrete is a kind of high-performance concrete, which has very high fluidity without dispersion and bleeding, can fill the space in the formwork by self-weight, has good filling property for dense steel bars and complex structures, can form dense concrete structure without vibration (or slightly inserted), and has good mechanical properties and durability.

[0003] As a rich slurry concrete, the amount of cementitious material of self compacting concrete is generally high, and the amount of cementitious material per unit of self compacting concrete of the same grade is about 100 kg / m3 higher than that of ordinary concrete. The large use of cementitious material also leads to a sharp increase in CO2 emission of self compacting concrete, and the cost of cementitious material has been high. On the other hand, with the increasing use of concrete and the strengthening of environmental protection, natural sand cannot meet the use demand of concrete, and the use of low-carbon machine-made sand to replace natural sand has become an inevitable trend of development.

[0004] The Chinese patent with the application publication number CN107777936A discloses a kind of self compacting concrete, including cement, mineral powder, fly ash, sand, gravel, water, additive, the preparation method of the self compacting concrete is to put sand, cement, mineral powder and fly ash, additive in stirring main machine, then stir, should ensure that concrete is stirred evenly, add water in the process of stirring, appropriately extend the concrete stirring time.

[0005] The prior art in the above has the following defects: at present, the self compacting concrete in the above usually adopts artificial weighing and is put into stirring main machine to stir, and there is the problem of low production efficiency. UTILITY MODEL CONTENT

[0006] The utility model solves the problem of low production efficiency in the prior art.

[0007] The utility model discloses a practical new type is through following technical scheme to realize above-mentioned practical new type purpose: a low carbon mechanism sand self -compacting concrete production line, including aggregate supply device, powder material supply device, stirring device, the aggregate supply device includes aggregate batcher, sets up the flat belt conveyor of aggregate batcher bottom, and the inclined belt conveyor is connected with flat belt conveyor, the powder material supply device includes powder material bin, and the spiral conveyor is connected with powder material bin discharge gate, the stirring device includes the building frame, and the aggregate temporary storage hopper of setting in building frame and import is located below the outlet of inclined belt conveyor, and the powder material scale of setting in building frame and import is located below the outlet of spiral conveyor, and the stirring host of setting in building frame and being located below powder material scale, the top surface of stirring host is provided with the aggregate pipe of aligning with the aggregate temporary storage hopper export, the top surface of stirring host is provided with the powder material import that has set up in, and the powder material screening machine of setting in the top surface of stirring host and being located above powder material import.

[0008] The utility model further sets up: the powder material screening machine includes the frame that has the screening chamber of communicating with powder material import inside, the rotary screen cylinder is rotationally arranged in the screening chamber, the rotary screen cylinder includes driving turntable, driven turntable, the screen cylinder body of setting between driving turntable and driven turntable and being rotary screen cavity inside, the outer lateral wall of screen cylinder body is provided with the feed pipe with feed channel, the feed channel is communicated with rotary screen cavity, the top surface of frame is provided with the guide pipe frame, the guide pipe hole is opened with feed channel alignment on the guide pipe frame.

[0009] The utility model further sets up: the installation plate is provided with the multiple feed holes on the installation plate, the guide rod hole is opened in the middle part of installation plate, the end face of installation plate towards rotary screen cavity is provided with lower convex cylinder, the end face of lower convex cylinder towards rotary screen cavity is opened with lower cylinder groove communicated with guide rod hole, the end face of installation plate away from rotary screen cavity is provided with upper convex cylinder, the top surface of upper convex cylinder is opened with upper cylinder groove communicated with guide rod hole, the top surface of upper convex cylinder is provided with the upper cylinder cover that will close upper cylinder groove, the vertical motion sliding rod of sliding cooperation with guide rod hole is passed in guide rod hole, the vertical motion sliding block of sliding cooperation with lower cylinder groove is coaxially arranged on the one end of vertical motion sliding rod close to rotary screen cavity, the bottom of vertical motion sliding block is provided with vertical motion plug, the vertical motion plug is slidably arranged in the bottom of feed channel, the push rod electric jar is set up on the end face of upper cylinder groove towards upper cylinder groove, the piston rod of push rod electric jar is connected on the end face of vertical motion sliding rod away from rotary screen cavity, the storage battery is arranged in upper cylinder groove.

[0010] The utility model further sets up: the reset spring is sheathed on the vertical motion sliding rod, and the top wall of lower cylinder groove is fixedly connected with the upper end of reset spring, and the end face of vertical motion sliding block away from rotary screen cavity is fixedly connected with the lower end of reset spring.

[0011] The utility model further sets up: the outer side wall of conduit frame is equipped with guide sliding hole, the guide sliding hole is linked with conduit hole, slidingly set with the vertical sliding pipe with guide channel in the conduit hole, the guide channel is aligned with feed channel, the outer side wall of vertical sliding pipe is equipped with the guide sliding block of sliding cooperation with guide sliding hole, the outer side wall of conduit frame is equipped with the no -rod electric jar of guide sliding block, the piston rod of no -rod electric jar is connected with guide sliding block.

[0012] The utility model further sets up: the rack includes the lower frame body, the middle frame, the upper frame body which set gradually from below to above, the bottom of lower frame body outer side wall is provided with the screw connection in the mixing host top surface's link machine board, the top of lower frame body outer side wall is provided with the screw connection in the middle frame bottom surface's lower link frame board, the bottom of upper frame body outer side wall is provided with the screw connection in the middle frame top surface's upper link frame board.

[0013] The utility model further sets up: the two outer side walls of upper frame body are equipped with driven perforation and driven perforation respectively, the driven perforation is equipped with the driven axle of coaxial connection with driven disc on the penetration, the one end of driven axle is away from driven disc and is equipped with drive motor, the outer side of rack is equipped with the driven axle bearing seat for supporting driven axle, the driven axle is equipped with the driven axle of coaxial connection with driven disc on the penetration, the outer side of rack is equipped with the driven axle bearing seat for supporting driven axle.

[0014] The utility model further sets up: the side wall of lower frame body is close to driven perforation and is equipped with driven vertical board, the end face of driven vertical board is away from lower frame body and is equipped with driven horizontal board, driven vertical board's side wall and driven horizontal board's bottom surface all are equipped with driven rib plate between, the top surface of driven horizontal board is equipped with driven frame, driven axle bearing seat sets up on the top surface of driven frame.

[0015] The utility model further sets up: the side wall of lower frame body is close to driven perforation and is equipped with driven vertical board, the end face of driven vertical board is away from lower frame body and is equipped with driven horizontal board, driven vertical board's side wall and driven horizontal board's bottom surface all are equipped with driven rib plate between, the top surface of driven horizontal board is equipped with driven frame, driven axle bearing seat sets up on the top surface of driven frame.

[0016] The utility model further sets up: the rack includes a plurality of lower support leg, the lower installation platform of setting in the lower support leg top, the lower inclined brace of being obliquely set between the side wall of lower support leg and the bottom surface of lower installation platform, the upper support leg of setting on the top surface of lower installation platform, the upper installation platform of setting in the upper support leg top, the upper inclined brace of being obliquely set between the side wall of upper support leg and the bottom surface of upper installation platform, the mixing host is set on the top surface of lower installation platform and penetrates lower installation platform, the aggregate temporary storage hopper and the powder scale are set on the top surface of upper installation platform and penetrate upper installation platform.

[0017] Therefore, the low-carbon machine-made sand self-compacting concrete production line has the advantages that the automatic production of the concrete is realized through the aggregate supply device, the powder supply device and the stirring device, and the production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a top view structural schematic diagram of the low-carbon machine-made sand self-compacting concrete production line in the utility model;

[0019] Figure 2 is a structural schematic diagram of the powder supply device and the stirring device in the utility model;

[0020] Figure 3 is a sectional view structural diagram of the powder screening machine in the utility model;

[0021] Figure 4 is Figure 3 is an enlarged view of A in the utility model;

[0022] Figure 5 is Figure 3 is an enlarged view of B in the utility model;

[0023] Figure 6 is a structural schematic diagram of the first visual angle of the powder screening machine in the utility model;

[0024] Figure 7 is a structural schematic diagram of the second visual angle of the powder screening machine in the utility model.

[0025] In the above figure: 1, aggregate batcher; 2, flat belt conveyor; 3, inclined belt conveyor; 4, powder bin; 5, screw conveyor; 6, lower support leg; 7, lower mounting platform; 8, lower diagonal brace; 9, upper support leg; 10, upper mounting platform; 11, upper diagonal brace; 12, powder scale; 13, aggregate temporary storage hopper; 14, mixing main machine; 15, aggregate pipe; 16, powder inlet; 17, powder screening machine; 18, frame; 19, screening chamber; 20, lower frame body; 21, machine connecting plate; 22, lower connecting frame plate; 23, middle frame; 24, upper frame body; 25, upper connecting frame plate; 26, driving perforation; 27, driven perforation; 28, rotary screen cylinder; 29, driving rotary disc; 30, screen cylinder body; 31, driven rotary disc; 32, rotary screen cavity; 33, screen hole; 34, driving connecting plate; 35, driven connecting plate; 36, feeding pipe; 361, feeding channel; 37, mounting plate; 38, material passage hole; 39, guide rod hole; 40, lower convex cylinder; 41, lower cylinder groove; 42, upper convex cylinder; 43, upper cylinder groove; 44, upper cylinder cover; 45, vertically moving sliding rod; 46, vertically moving sliding block; 47, vertically moving plug; 48, push rod electric cylinder; 49, storage battery; 50, return spring; 51, guide pipe frame; 52, guide pipe hole; 53, guide sliding hole; 54, vertically moving sliding pipe; 55, guide sliding block; 56, rodless electric cylinder; 57, driving vertical plate; 58, driving horizontal plate; 59, driving rib plate; 60, driving motor; 61, driving shaft; 62, driving frame; 63, driving bearing seat; 64, driven vertical plate; 65, driven horizontal plate; 66, driven rib plate; 67, driven frame; 68, driven bearing seat; 69, driven shaft. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, purposes and effects of the utility model more clear and easy to understand, the utility model will be further described below in combination with the drawings and specific embodiments.

[0027] As Figure 1 shown, the utility model provides a kind of low carbon machine-made sand self-compacting concrete production line, including aggregate supply device, powder supply device, mixing device.

[0028] As Figure 1 shown, aggregate supply device includes aggregate batcher 1, flat belt conveyor 2, inclined belt conveyor 3.

[0029] Aggregate batcher 1 is a kind of existing aggregate weighing and batching equipment, and its main function is to continuously and uniformly feed aggregate to flat belt conveyor 2, and aggregate batcher 1 can batch fine aggregate (sand) and coarse aggregate (gravel).

[0030] The flat belt conveyor 2 is fixedly installed at the bottom of the aggregate batcher 1 and is located directly below the discharge port of the aggregate batcher 1, and the aggregate weighed and batched in the aggregate batcher 1 falls on the flat belt conveyor 2.

[0031] The inclined belt conveyor 3 is connected to the flat belt conveyor 2 at one end and is connected to the stirring device at the other end, the flat belt conveyor 2 sends the aggregate to the inclined belt conveyor 3, and then the inclined belt conveyor 3 sends the aggregate into the stirring device.

[0032] As shown in Figure 1 , the powder supply device comprises a powder bin 4 and a screw conveyor 5.

[0033] The powder bin 4 is a kind of existing powder batching equipment, and its main function is to continuously and uniformly feed the powder (cement, mineral powder, fly ash) to the screw conveyor 5.

[0034] The screw conveyor 5 is connected to the discharge port at the bottom of the powder bin 4 at one end and is connected to the stirring device at the other end, and the cement, mineral powder and fly ash in the powder bin 4 are sent into the stirring device through the screw conveyor 5.

[0035] As shown in Figure 2 , the stirring device comprises a tower frame, a powder scale 12, an aggregate temporary storage hopper 13, a stirring main machine 14 and a powder screening machine 17.

[0036] As shown in Figure 2 , the tower frame comprises a lower leg 6, a lower installation platform 7, a lower inclined brace 8, an upper leg 9, an upper installation platform 10 and an upper inclined brace 11.

[0037] The lower leg 6 is fixedly installed on the ground of the factory area, in the embodiment, the number of the lower leg 6 is four, the four lower legs 6 are distributed in a rectangular shape, the top of the four lower legs 6 is fixedly installed with the lower installation platform 7, and the lower inclined brace 8 is obliquely arranged between the side wall of the lower leg 6 and the bottom surface of the lower installation platform 7, and the lower inclined brace 8 is used to improve the connection strength between the lower leg 6 and the lower installation platform 7.

[0038] The upper leg 9 is fixedly installed on the top surface of the lower installation platform 7, in the embodiment, the number of the upper leg 9 is four, the four upper legs 9 are respectively fixedly installed on the four corners of the lower installation platform 7, the top of the four upper legs 9 is fixedly installed with the upper installation platform 10, and the upper inclined brace 11 is obliquely arranged between the side wall of the upper leg 9 and the bottom surface of the upper installation platform 10, and the upper inclined brace 11 is used to improve the connection strength between the upper leg 9 and the upper installation platform 10.

[0039] As shown in Figure 2As shown in the figure, the powder scale 12 is fixedly installed on the top surface of the upper mounting platform 10, and the powder scale 12 is arranged through the upper mounting platform 10. The powder scale 12 is a powder weighing device. In this embodiment, the powder scale 12 has three weighing chambers, which are respectively used for weighing cement, mineral powder and fly ash. The three weighing chambers of the powder scale 12 are respectively located below the outlets of the three screw conveyors 5. The cement, mineral powder and fly ash are respectively sent into the three weighing chambers of the powder scale 12 through the screw conveyors 5 for quantitative weighing.

[0040] As shown in the figure, Figure 2 As shown in the figure, the aggregate temporary storage hopper 13 is fixedly installed on the top surface of the upper mounting platform 10, and the aggregate temporary storage hopper 13 is arranged through the upper mounting platform 10. The inlet at the top of the aggregate temporary storage hopper 13 is located below the discharge port of the inclined belt conveyor 3. The aggregate temporary storage hopper 13 is used for temporarily storing the fine aggregate (sand) and the coarse aggregate (gravel) conveyed by the inclined belt conveyor 3.

[0041] As shown in the figure, Figure 2 As shown in the figure, the stirring main machine 14 is fixedly installed on the top surface of the lower mounting platform 7, and the stirring main machine 14 is arranged through the lower mounting platform 7. The stirring main machine 14 has the aggregate pipe 15 fixedly connected to the outlet of the aggregate temporary storage hopper 13. The powder inlet 16 is arranged on the top surface of the stirring main machine 14.

[0042] As shown in the figure, Figure 2 As shown in the figure, the powder screening machine 17 is fixedly installed on the top surface of the stirring main machine 14, and the powder screening machine 17 is located directly above the powder inlet 16. The powder screening machine 17 includes the rack 18 with the screening chamber 19 inside. The screening chamber 19 is in communication with the powder inlet 16.

[0043] As shown in the figure, Figure 3 and 5 As shown in the figure, the rack 18 includes the lower rack body 20, the middle rack 23 and the upper rack body 24 arranged in sequence from bottom to top.

[0044] The cross section of the lower rack body 20 is square ring shape. The bottom of the outer side wall of the lower rack body 20 is fixedly connected with the machine connecting plate 21 which is screwed to the top surface of the stirring main machine 14. The top of the outer side wall of the lower rack body 20 is fixedly connected with the lower connecting frame plate 22 which is screwed to the bottom surface of the middle rack 23.

[0045] The cross section of the middle rack 23 is square ring shape. The middle rack 23 is used for connecting the lower rack body 20 and the upper rack body 24.

[0046] The upper rack body 24 is square tubular shape with the opening facing downward. The bottom of the outer side wall of the upper rack body 24 is fixedly connected with the upper connecting frame plate 25 which is screwed to the top surface of the middle rack 23. The opposite outer side walls of the upper rack body 24 are respectively provided with the driving perforation 26 and the driven perforation 27. The driving perforation 26 and the driven perforation 27 are both rectangular holes. The driving perforation 26 is aligned with the driven perforation 27.

[0047] As shown in Figure 3 , a hollow circular table-shaped rotary screen cylinder 28 is arranged in the screening chamber 19, the rotary screen cylinder 28 comprises a driving turntable 29, a screen cylinder body 30, a driven turntable 31, the screen cylinder body 30 is a hollow circular table shape, the inside of the screen cylinder body 30 is a rotary screen cavity 32, the outer side wall of the screen cylinder body 30 is uniformly distributed with screen holes 33 for screening powder, the end of the screen cylinder body 30 close to the driving turntable 29 is fixedly connected with a driving connecting plate 34 which is bolted with the driving turntable 29, and the end of the screen cylinder body 30 close to the driven turntable 31 is fixedly connected with a driven connecting plate 35 which is bolted with the driven turntable 31.

[0048] As shown in Figure 3 and 4 , the outer side wall of the screen cylinder body 30 is fixedly connected with a feeding pipe 36 which has a feeding channel 361, the feeding channel 361 is communicated with the rotary screen cavity 32, the feeding channel 361 is provided with a mounting plate 37 which is connected with the feeding pipe 36, a plurality of feeding holes 38 are equidistantly and circumferentially arranged on the mounting plate 37, the feeding holes 38 are circular table holes with small heads facing the rotary screen cavity 32, a guide rod hole 39 is arranged in the middle of the mounting plate 37 and is located on the inner side of the plurality of feeding holes 38, and the guide rod hole 39 is a circular hole.

[0049] As shown in Figure 4 , the end face of the mounting plate 37 facing the rotary screen cavity 32 is fixedly connected with a lower convex cylinder 40, the end face of the lower convex cylinder 40 facing the rotary screen cavity 32 is provided with a lower cylinder groove 41, the lower cylinder groove 41 is a circular groove, and the lower cylinder groove 41 is communicated with the guide rod hole 39.

[0050] As shown in Figure 4 , the end face of the mounting plate 37 away from the rotary screen cavity 32 is fixedly connected with an upper convex cylinder 42, the top face of the upper convex cylinder 42 is provided with an upper cylinder groove 43, the upper cylinder groove 43 is a circular groove, the upper cylinder groove 43 is communicated with the guide rod hole 39, and the top face of the upper convex cylinder 42 is fixedly installed with an upper cylinder cover 44 which closes the upper cylinder groove 43.

[0051] As shown in Figure 4 , a vertical sliding rod 45 is arranged in the guide rod hole 39 and is in sliding fit with the guide rod hole 39. The end of the vertical sliding rod 45 close to the rotary screen cavity 32 is coaxially provided with a vertical sliding block 46 which is in sliding fit with the lower cylinder groove 41. The bottom of the vertical sliding block 46 is fixedly connected with a vertical plug 47 which is slidingly arranged at the bottom of the feeding channel 361, and the vertical plug 47 is used to control the on-off between the feeding channel 361 and the rotary screen cavity 32.

[0052] As shown in Figure 4As shown, the end face of the upper cylinder cover 44 towards the upper cylinder groove 43 is fixedly installed with a push rod electric cylinder 48, the piston rod of the push rod electric cylinder 48 is connected to the end face of the vertical sliding rod 45 away from the rotary sieve cavity 32, when the piston rod of the push rod electric cylinder 48 is extended, the vertical sliding rod 45, the vertical sliding block 46 and the vertical plug 47 can be pushed to move towards the rotary sieve cavity 32, until the vertical plug 47 slides out of the feeding channel 361, at this time, the powder in the feeding channel 361 can enter the rotary sieve cavity 32. The upper cylinder groove 43 is provided with a storage battery 49, which is used to power the push rod electric cylinder 48.

[0053] As shown in Figure 4 , the vertical sliding rod 45 is sleeved with a return spring 50, the upper end of the return spring 50 is fixedly connected with the top wall of the lower cylinder groove 41, and the lower end of the return spring 50 is fixedly connected with the end face of the vertical sliding block 46 away from the rotary sieve cavity 32. When the push rod electric cylinder 48 pushes the vertical sliding rod 45, the vertical sliding block 46 and the vertical plug 47 to move towards the rotary sieve cavity 32, the return spring 50 is stretched; when the push rod electric cylinder 48 stops working, the return spring 50 can drive the vertical sliding rod 45, the vertical sliding block 46, the vertical plug 47 and the piston rod of the push rod electric cylinder 48 to return to the original position. Using the return spring 50 to drive the piston rod of the push rod electric cylinder 48 to return to the original position is beneficial to saving the working electricity of the push rod electric cylinder 48, and further prolonging the replacement period of the storage battery 49.

[0054] As shown in Figure 3 and 5 , the top surface of the upper frame body 24 is fixedly connected with a guide pipe frame 51 having a guide pipe hole 52, the guide pipe hole 52 is a circular hole, and the guide pipe hole 52 is aligned with the feeding channel 361. The two outer side walls of the guide pipe frame 51 opposite to each other are both provided with a guide sliding hole 53, and the two guide sliding holes 53 are both in communication with the guide pipe hole 52.

[0055] As shown in Figure 5 , the guide pipe hole 52 is slidably provided with a vertical sliding pipe 54 having a material guiding channel, the material guiding channel can be aligned with the feeding channel 361, and the outer side wall of the vertical sliding pipe 54 is fixedly connected with a pair of guide sliding blocks 55 which are respectively in sliding cooperation with the two guide sliding holes 53.

[0056] As shown in Figure 5 , the outer side wall of the guide pipe frame 51 is fixedly installed with a rodless electric cylinder 56, and the piston rod of the rodless electric cylinder 56 is connected with the guide sliding blocks 55. When the rodless electric cylinder 56 drives the vertical sliding pipe 54 to move downward through the guide sliding blocks 55, until the bottom surface of the vertical sliding pipe 54 abuts against the top surface of the feeding pipe 36, the material guiding channel is in communication with the feeding channel 361.

[0057] As shown in Figure 3 and 6As shown in the drawings, the side wall of the lower frame body 20 close to the driving perforation 26 is fixedly connected with a pair of driving vertical plates 57, the end face of the two driving vertical plates 57 away from the lower frame body 20 is fixedly connected with a driving horizontal plate 58, the side wall of each driving vertical plate 57 and the bottom surface of the driving horizontal plate 58 are provided with a driving rib plate 59. The top surface of the driving horizontal plate 58 is fixedly installed with a driving motor 60, the output shaft of the driving motor 60 is coaxially connected with a driving shaft 61, the end of the driving shaft 61 away from the driving motor 60 is coaxially connected with the driving turntable 29.

[0058] As shown in the drawings, Figure 3 and 6 The top surface of the driving horizontal plate 58 is fixedly connected with a driving frame 62, the driving frame 62 is bolted with a driving bearing seat 63, the driving bearing seat 63 is for the driving shaft 61 to pass through, and the driving bearing seat 63 is used for supporting the driving shaft 61 to rotate.

[0059] As shown in the drawings, Figure 3 and 7 The side wall of the lower frame body 20 close to the driven perforation 27 is fixedly connected with a pair of driven vertical plates 64, the end face of the two driven vertical plates 64 away from the lower frame body 20 is fixedly connected with a driven horizontal plate 65, the side wall of each driven vertical plate 64 and the bottom surface of the driven horizontal plate 65 are provided with a driven rib plate 66. The top surface of the driven horizontal plate 65 is fixedly connected with a driven frame 67, the top surface of the driven frame 67 is bolted with a driven bearing seat 68, the driven bearing seat 68 is provided with a driven shaft 69, and the end of the driven shaft 69 away from the driven bearing seat 68 is coaxially connected with the driven turntable 31.

[0060] The low-carbon mechanism sand self-compacting concrete production line realizes the automatic production of concrete through the aggregate supply device, the powder supply device and the stirring device, which is beneficial to improve the production efficiency.

[0061] Finally, it should be explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A low-carbon mechanism sand self-compacting concrete production line, characterized in that: The application relates to a concrete mixing device, which comprises a bone material supply device, a powder material supply device and a stirring device, wherein the bone material supply device comprises a bone material distributor (1), a flat belt conveyor (2) arranged at the bottom of the bone material distributor (1) and an inclined belt conveyor (3) connected with the flat belt conveyor (2); the powder material supply device comprises a powder material bin (4) and a screw conveyor (5) connected with the powder material bin (4); the stirring device comprises a tower frame, a bone material temporary storage hopper (13) arranged on the tower frame and having an inlet below the outlet of the inclined belt conveyor (3), a powder material scale (12) arranged on the tower frame and having an inlet below the outlet of the screw conveyor (5), and a stirring main machine (14) arranged on the tower frame and below the powder material scale (12); the top surface of the stirring main machine (14) is provided with a bone material pipe (15) aligned with the outlet of the bone material temporary storage hopper (13); the top surface of the stirring main machine (14) is provided with a powder material inlet (16); and the top surface of the stirring main machine (14) is provided with a powder material screening machine (17) above the powder material inlet (16).

2. The low-carbon mechanism sand self-compacting concrete production line according to claim 1, characterized in that: The powder material screening machine (17) comprises a frame (18) internally provided with a screening chamber (19) communicated with the powder material inlet (16); a rotary screen cylinder (28) is arranged in the screening chamber (19) and rotates; the rotary screen cylinder (28) comprises a driving rotary disc (29), a driven rotary disc (31) and a screen cylinder body (30) arranged between the driving rotary disc (29) and the driven rotary disc (31) and internally provided with a rotary screen cavity (32); a feeding pipe (36) provided with a feeding channel (361) is arranged on the outer side wall of the screen cylinder body (30); the feeding channel (361) is communicated with the rotary screen cavity (32); a guide pipe frame (51) is arranged on the top surface of the frame (18); and a guide pipe hole (52) aligned with the feeding channel (361) is arranged in the guide pipe frame (51).

3. The low-carbon mechanism sand self-compacting concrete production line according to claim 2, characterized in that: The installation plate (37) is provided with a plurality of feeding holes (38), and a guide rod hole (39) is formed in the middle of the installation plate (37). A lower convex cylinder (40) is arranged on the end face of the installation plate (37) facing the rotary screen cavity (32), and a lower cylinder groove (41) is formed in the end face of the lower convex cylinder (40) facing the rotary screen cavity (32) and communicated with the guide rod hole (39). An upper convex cylinder (42) is arranged on the end face of the installation plate (37) away from the rotary screen cavity (32), and an upper cylinder groove (43) is formed in the top surface of the upper convex cylinder (42) and communicated with the guide rod hole (39). An upper cylinder cover (44) is arranged on the top surface of the upper convex cylinder (42) and closes the upper cylinder groove (43). A vertical sliding rod (45) is arranged in the guide rod hole (39) and slidably connected with the guide rod hole (39). The vertical sliding rod (45) is coaxially provided with a vertical sliding block (46) near the end of the vertical sliding rod (45) close to the rotary screen cavity (32) and slidably connected with the lower cylinder groove (41). The bottom of the vertical sliding block (46) is provided with a vertical plug (47) which is slidably arranged at the bottom of the feeding channel (361). A push rod electric cylinder (48) is arranged on the end face of the upper cylinder cover (44) facing the upper cylinder groove (43). The piston rod of the push rod electric cylinder (48) is connected to the end face of the vertical sliding rod (45) away from the rotary screen cavity (32). A storage battery (49) is arranged in the upper cylinder groove (43).

4. The low-carbon mechanism sand self-compacting concrete production line according to claim 3, characterized in that: A return spring (50) is arranged on the vertical sliding rod (45) and fixedly connected to the top wall of the lower cylinder groove (41) at the upper end, and fixedly connected to the end face of the vertical sliding block (46) away from the rotary screen cavity (32) at the lower end.

5. The low-carbon mechanism sand self-compacting concrete production line according to claim 3, characterized in that: A guide sliding hole (53) is formed in the outer side wall of the guide pipe frame (51) and communicated with the guide pipe hole (52). A vertical sliding pipe (54) with a guide channel is slidably arranged in the guide pipe hole (52) and aligned with the feeding channel (361). A guide sliding block (55) is arranged on the outer side wall of the vertical sliding pipe (54) and slidably connected with the guide sliding hole (53). A rodless electric cylinder (56) is arranged on the outer side wall of the guide pipe frame (51) and the piston rod thereof is connected with the guide sliding block (55).

6. The low-carbon mechanism sand self-compacting concrete production line according to claim 2, characterized in that: The rack (18) comprises a lower rack body (20), a middle frame (23) and an upper rack body (24) arranged in sequence from bottom to top. The bottom of the outer side wall of the lower rack body (20) is provided with a machine connecting plate (21) which is screw-connected to the top surface of the stirring main machine (14). The top of the outer side wall of the lower rack body (20) is provided with a lower connecting frame plate (22) which is screw-connected to the bottom surface of the middle frame (23). The bottom of the outer side wall of the upper rack body (24) is provided with an upper connecting frame plate (25) which is screw-connected to the top surface of the middle frame (23).

7. The low-carbon mechanism sand self-compacting concrete production line according to claim 6, characterized in that: The upper frame body (24) is provided with a driving perforation (26) and a driven perforation (27) on the opposite outer side walls, respectively, the driving perforation (26) is provided with a driving shaft (61) coaxially connected with a driving turntable (29), the driving shaft (61) is provided with a driving motor (60) at the end away from the driving turntable (29), the outer side of the frame (18) is provided with a driving shaft bearing seat (63) for supporting the driving shaft (61), the driven perforation (27) is provided with a driven shaft (69) coaxially connected with a driven turntable (31), the outer side of the frame (18) is provided with a driven shaft bearing seat (68) for supporting the driven shaft (69).

8. The low-carbon mechanism sand self-compacting concrete production line according to claim 7, characterized in that: The lower frame body (20) is provided with a driving vertical plate (57) on the side wall close to the driving perforation (26), the end face of the driving vertical plate (57) away from the lower frame body (20) is provided with a driving horizontal plate (58), the side wall of the driving vertical plate (57) and the bottom face of the driving horizontal plate (58) are both provided with a driving rib plate (59), the top face of the driving horizontal plate (58) is provided with a driving frame (62), and the driving shaft bearing seat (63) is arranged on the top face of the driving frame (62).

9. The low-carbon mechanism sand self-compacting concrete production line according to claim 7, characterized in that: The lower frame body (20) is provided with a driven vertical plate (64) on the side wall close to the driven perforation (27), the end face of the driven vertical plate (64) away from the lower frame body (20) is provided with a driven horizontal plate (65), the side wall of the driven vertical plate (64) and the bottom face of the driven horizontal plate (65) are both provided with a driven rib plate (66), the top face of the driven horizontal plate (65) is provided with a driven frame (67), and the driven shaft bearing seat (68) is arranged on the top face of the driven frame (67).

10. The low-carbon mechanism sand self-compacting concrete production line according to claim 1, characterized in that: The frame comprises a plurality of lower legs (6), a lower mounting platform (7) arranged on the top of the lower leg (6), a lower inclined brace (8) arranged between the side wall of the lower leg (6) and the bottom face of the lower mounting platform (7), an upper leg (9) arranged on the top face of the lower mounting platform (7), an upper mounting platform (10) arranged on the top of the upper leg (9), an upper inclined brace (11) arranged between the side wall of the upper leg (9) and the bottom face of the upper mounting platform (10), the mixing main machine (14) is arranged on and penetrates through the top face of the lower mounting platform (7), and the aggregate temporary storage hopper (13) and the powder scale (12) are arranged on and penetrate through the top face of the upper mounting platform (10).

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