CN214383587U

CN214383587U - Raw materials conveyor is used in concrete production

Info

Publication number: CN214383587U
Application number: CN202022837053.2U
Authority: CN
Inventors: 王健
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-10-12
Anticipated expiration: 2030-12-01

Abstract

The utility model belongs to the technical field of concrete production, in particular to a raw material conveying device for concrete production, which comprises a separation box with a hollow structure, wherein the upper part of the front end surface of the separation box is communicated with a feeding pipe, the top of the inner side wall of the feeding pipe is in sliding connection with a first blocking block, the top end surface of the separation box is provided with a through hole, and a first case with a hollow structure is arranged in the through hole of the separation box; when the device is used, firstly, a worker energizes the heating plate, the heating plate is heated for a period of time, then the first motor is energized, and then the spindle of the first motor drives the blade to rotate, so that the inside of the separation box keeps a dry state, at the moment, the worker pours a certain amount of raw materials into the separation box from the feeding pipe, then the feeding pipe is blocked by the first blocking block, the raw materials are dried while being separated, the raw materials are completely dried, and when the raw materials are prevented from being conveyed, the incompletely dried raw materials absorb moisture in the air to react and block.

Description

Raw materials conveyor is used in concrete production

Technical Field

The utility model belongs to the technical field of the concrete production, concretely relates to raw materials conveyor is used in concrete production.

Background

Concrete, referred to as "concrete" for short: the concrete is a general term for engineering composite materials formed by cementing aggregate into a whole by cementing materials, and the term of concrete generally refers to that cement is used as the cementing materials, and sand and stone are used as the aggregate; the cement concrete, also called as common concrete, is obtained by mixing with water (optionally containing admixture and admixture) according to a certain proportion and stirring, and is widely applied to civil engineering.

When the cement is conveyed, the cement can possibly absorb the moisture in the air in the conveying process and further agglomerate, and finally, in a mechanism for conveying the raw materials, some residual raw materials which are inevitable at last cannot be completely discharged.

The prior art has the following problems: the existing conveying device can not sieve cement; the existing conveying device can not completely dry the cement in the conveying process; and the existing conveying mechanism can finally leave a certain amount of raw materials which cannot be completely discharged.

In order to solve the problems, the application provides a raw material conveying device for concrete production.

SUMMERY OF THE UTILITY MODEL

To solve the problems set forth in the background art described above. The utility model provides a raw materials conveyor for concrete production has and is convenient for sieve, be convenient for in transportation process to the cement of caking, makes the complete mummification of cement and makes the complete exhaust characteristics of raw materials in the conveying mechanism.

In order to achieve the above object, the utility model provides a following technical scheme: a raw material conveying device for concrete production comprises a separation box which is arranged in a hollow structure, wherein the upper part of the front end face of the separation box is communicated with a feeding pipe, the top of the inner side wall of the feeding pipe is in sliding connection with a first blocking block, the top end face of the separation box is provided with a through hole, a first case which is arranged in a hollow structure is arranged in the through hole of the separation box, the first case is fixedly connected with the separation box, a first motor is fixedly arranged at the central position of the inner side wall of the top end face of the first case, a second connecting plate is arranged below the first motor, the second connecting plate is fixedly connected with the first case, a main shaft of the first motor penetrates through the second connecting plate, the main shaft of the first motor is rotatably connected with the second connecting plate through a bearing, the tail end of the main shaft of the first motor is fixedly provided with a blade, and a heating plate is arranged below the blade, the heating plate is fixedly connected with the first case, the inner side wall of the separation case is fixedly provided with a screen, the top end surface of the screen is provided with a plurality of through holes, the through holes on the top end surface of the screen are uniformly distributed on the top end surface of the screen, a collecting box which is arranged in a hollow structure is fixedly arranged below the right end surface of the separation case, a first communicating pipe is arranged above the screen, the left part of the inner side wall of the first communicating pipe is fixedly provided with a valve, the first communicating pipe is communicated with the collecting box, the central position of the bottom end surface of the collecting box is communicated with a first discharging pipe, the lower part of the inner side wall of the first discharging pipe is slidably connected with a second blocking block, the central position of the bottom end surface of the separation case is fixedly provided with a second case which is arranged in an inwards concave structure, a second motor is fixedly arranged below the inner side wall of the front end surface of the second case, and the tail end of a main shaft of the second motor is fixedly provided with a cam, a first connecting plate is arranged above the cam, the first connecting plate is fixedly connected with the second case, springs are fixedly arranged on the left side and the right side of the bottom end face of the first connecting plate, a striking plate which is arranged in a T-shaped structure is fixedly arranged at the other end of each spring, the outer side wall of the cam is in sliding connection with a cross rod of the striking plate, a vertical rod of the striking plate penetrates through the first connecting plate and extends to the outside, the vertical rod of the striking plate is in sliding connection with the cam, a rubber pad is fixedly arranged on the top end face of the vertical rod of the striking plate, a second communicating pipe is communicated with the lower part of the left end face of the separation case, a second base is arranged on the left side of the separation case, an upright post is fixedly arranged on the top end face of the second base, a third base is arranged on the left side of the second base, a top end face of the third base is provided with a groove, and a third case is arranged in the groove of the third base, the third case is connected with the third base in a sliding manner, a third motor is fixedly arranged on the front side above the left end face of the third case, a main shaft of the third motor penetrates through the third case and extends to the inside, the main shaft of the third motor is connected with the third case in a rotating manner, a circular gear is fixedly arranged at the tail end of the main shaft of the third motor, a spur rack is meshed at the rear part of the outer side wall of the circular gear, the top end face of the spur rack penetrates through the third case and extends to the outside, the spur rack is connected with the third case in a sliding manner, the spur rack and the top end face of the upright post are respectively connected with supporting blocks through rotating shafts, spiral feeding cylinders arranged in an inwards concave structure are fixedly arranged on the top end faces of the two supporting blocks, a fourth motor is fixedly arranged on the right end face of each spiral feeding cylinder, and the main shaft of the fourth motor penetrates through the end faces of the spiral feeding cylinders and extends to the inside, the main shaft of the fourth motor is rotatably connected with the spiral feeding barrel, a spiral blade rod is fixedly arranged at the tail end of the main shaft of the fourth motor, a protection box arranged in a concave structure is fixedly arranged on the right side of the top end face of the spiral feeding barrel, and the other end of the second communicating pipe is communicated with the protection box.

As the utility model relates to a raw materials conveyor is preferred for concrete production, a plurality of through-hole has all been seted up to the top face and the bottom face of first machine case, the even distribution of through-hole of first machine case top end face is in on the top face of first machine case, the even distribution of through-hole of first machine case bottom end face is in on the bottom face of first machine case.

As the utility model relates to a raw materials conveyor is preferred for concrete production, the screen cloth is the setting of right trapezoid structure.

As the utility model relates to a raw materials conveyor is preferred for concrete production, the bottom face inside wall of separator box is the slope form setting.

As the utility model relates to a raw materials conveyor is preferred for concrete production, four corners of separator bottom end face are all fixed and are equipped with first base.

Compared with the prior art, the beneficial effects of the utility model are that: when the device is used, firstly, a worker energizes the heating plate, after the heating plate is heated for a period of time, the first motor is energized, and further the main shaft of the first motor drives the blade to rotate, so that the inside of the separation box is kept in a dry state, at the moment, the worker pours a certain amount of raw materials into the separation box from the feeding pipe, then the feeding pipe is blocked by the first blocking block, the raw materials are dried while being separated, so that the raw materials are completely dried, the incompletely dried raw materials are prevented from absorbing moisture in air to react and block when the raw materials are conveyed, then the second motor is energized, the main shaft of the second motor drives the cam to rotate, and further the cam continuously pushes the striking plate to strike the separation box, due to the arrangement of the rubber mat, the striking plate is prevented from damaging the separation box, the more rapid operation of separating the powdery raw materials from the blocky raw materials is realized, after the separation is finished, the worker opens the valve, make the caking raw materials get into in the collecting box through first communicating pipe, the second sprue is extracted to the staff accessible, take out caking raw materials in the collecting box, the powdery raw materials is arranged inside spiral feed cylinder from second communicating pipe, at this moment with the fourth motor circular telegram, and then make the main shaft of fourth motor drive the rotation of spiral blade pole, make the raw materials carry next link, after carrying the completion, some raw materials that can not avoid remaining not completely to get rid of inside the spiral feed cylinder, at this moment with the third motor circular telegram, and then make, the third motor circular telegram, and then make the main shaft of third motor drive the circular gear rotatory, the circular gear drives the spur rack and moves downwards, make spiral feed cylinder be in the tilt state, be convenient for discharge remaining raw materials in the spiral feed cylinder.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the separating box of the present invention;

fig. 3 is a schematic view of an installation structure of the second housing, the second motor and the cam according to the present invention;

in the figure: 1. a separation tank; 2. a feed pipe; 3. a first block; 4. a first chassis; 5. a first motor; 6. a blade; 7. heating plates; 8. screening a screen; 9. a collection box; 10. a first communication pipe; 11. a first discharging pipe; 12. a second block; 13. a second chassis; 14. a second motor; 15. a cam; 16. a first connecting plate; 17. a spring; 18. a connecting plate; 19. a rubber pad; 20. a first base; 21. a second communicating pipe; 22. a second base; 23. a third base; 24. a column; 25. a third chassis; 26. a third motor; 27. a circular gear; 28. straight rack; 29. a support block; 30. a screw feed barrel; 31. a fourth motor; 32. a helical blade bar; 33. a protection box; 41. a second connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

As shown in fig. 1, 2 and 3;

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the separating box of the present invention;

fig. 3 is a schematic view of the mounting structure of the second housing, the second motor and the cam according to the present invention.

A raw material conveying device for concrete production comprises a separation box 1 which is arranged in a hollow structure, the upper part of the front end face of the separation box 1 is communicated with a feeding pipe 2, the top of the inner side wall of the feeding pipe 2 is connected with a first blocking block 3 in a sliding manner, the top end face of the separation box 1 is provided with a through hole, a first machine box 4 which is arranged in a hollow structure is arranged in the through hole of the separation box 1, the first machine box 4 is fixedly connected with the separation box 1, a first motor 5 is fixedly arranged at the central position of the inner side wall of the top end face of the first machine box 4, a second connecting plate 41 is arranged below the first motor 5, the second connecting plate 41 is fixedly connected with the first machine box 4, a main shaft of the first motor 5 penetrates through the second connecting plate 41, the main shaft of the first motor 5 is rotatably connected with the second connecting plate 41 through a bearing, the tail end of the main shaft of the first motor 5 is fixedly provided with a blade 6, a heating plate 7 is arranged below the blade 6, and the heating plate 7 is fixedly connected with the first machine box 4, a screen 8 is fixedly arranged on the inner side wall of the separation box 1, a plurality of through holes are formed in the top end face of the screen 8, the through holes in the top end face of the screen 8 are uniformly distributed on the top end face of the screen 8, a collection box 9 which is arranged in a hollow structure is fixedly arranged below the right end face of the separation box 1, a first communication pipe 10 is arranged above the screen 8, a valve is fixedly arranged at the left part of the inner side wall of the first communication pipe 10, the first communication pipe 10 is communicated with the collection box 9, a first discharge pipe 11 is communicated at the central position of the bottom end face of the collection box 9, a second blocking block 12 is slidably connected to the lower part of the inner side wall of the first discharge pipe 11, a second box 13 which is arranged in an inwards concave structure is fixedly arranged at the central position of the bottom end face of the separation box 1, a second motor 14 is fixedly arranged below the inner side wall of the front end face of the second box 13, a cam 15 is fixedly arranged at the tail end of a main shaft of the second motor 14, and a first connecting plate 16 is arranged above the cam 15, the first connecting plate 16 is fixedly connected with the second case 13, springs 17 are fixedly arranged on the left side and the right side of the bottom end face of the first connecting plate 16, a striking plate 18 which is arranged in a T-shaped structure is fixedly arranged at the other end of each spring 17, the outer side wall of the cam 15 is slidably connected with a cross rod of the striking plate 18, a vertical rod of the striking plate 18 penetrates through the first connecting plate 16 and extends to the outside, the vertical rod of the striking plate 18 is slidably connected with the cam 15, a rubber pad 19 is fixedly arranged on the top end face of the vertical rod of the striking plate 18, a second communicating pipe 21 is communicated with the lower part of the left end face of the separating case 1, a second base 22 is arranged on the left side of the separating case 1, a vertical column 24 is fixedly arranged on the top end face of the second base 22, a third base 23 is arranged on the left side of the second base 22, a groove is formed in the top end face of the third base 23, a third case 25 is arranged in the groove of the third base 23, and the third case 25 is slidably connected with the third base 23, a third motor 26 is fixedly arranged on the front side above the left end face of the third case 25, a main shaft of the third motor 26 penetrates through the third case 25 and extends to the inside, the main shaft of the third motor 26 is rotatably connected with the third case 25, a circular gear 27 is fixedly arranged at the tail end of the main shaft of the third motor 26, a spur rack 28 is meshed at the rear part of the outer side wall of the circular gear 27, the top end face of the spur rack 28 penetrates through the third case 25 and extends to the outside, the spur rack 28 is in sliding connection with the third case 25, the top end faces of the spur rack 28 and the upright post 24 are rotatably connected with supporting blocks 29 through rotating shafts, a spiral feeding cylinder 30 which is arranged in a concave structure is fixedly arranged on the top end faces of the two supporting blocks 29, a fourth motor 31 is fixedly arranged on the right end face of the spiral feeding cylinder 30, the main shaft of the fourth motor 31 penetrates through the end face of the spiral feeding cylinder 30 and extends to the inside, and the main shaft of the fourth motor 31 is rotatably connected with the spiral feeding cylinder 30, a spiral blade rod 32 is fixedly arranged at the tail end of a main shaft of the fourth motor 31, a protection box 33 which is arranged in a concave structure is fixedly arranged on the right side of the top end face of the spiral feeding barrel 30, and the other end of the second communicating pipe 21 is communicated with the protection box 33.

In this embodiment: when the device is used, firstly, a worker energizes the heating plate 7, after the heating plate is heated for a period of time, the first motor 5 is energized, and further the main shaft of the first motor 5 drives the blade 6 to rotate, so that the inside of the separation box 1 is kept in a dry state, at the moment, the worker pours a certain amount of raw materials into the separation box 1 from the feeding pipe 2, and then the feeding pipe 2 is blocked by the first blocking block 3, so that the raw materials are separated and dried, the raw materials are completely dried, the phenomenon that the incompletely dried raw materials absorb moisture in air to react and block when the raw materials are conveyed is prevented, then the second motor 14 is energized, the main shaft of the second motor 14 drives the cam 15 to rotate, and further the cam 15 continuously pushes the striking plate 18 to strike the separation box 1, and the striking plate 18 is prevented from damaging the separation box 1 due to the arrangement of the rubber mat 19, and the operation of more rapidly separating the powdery raw materials from the blocky raw materials is realized, after the separation is accomplished, the staff opens the valve, make the caking raw materials get into in the collecting box 9 through first communicating pipe 10, the staff accessible extracts second jam 12, take out caking raw materials in the collecting box 9, the powdery raw materials is discharged inside the screw feed cylinder 30 from second communicating pipe 21, energize fourth motor 31 this moment, and then make the main shaft of fourth motor 31 drive the rotation of spiral blade pole 32, make the raw materials carry next link, after carrying the completion, some raw materials that can remain incompletely got rid of can inevitably be inside the screw feed cylinder 30, energize third motor 26 this moment, and then make, third motor 26 energizes, and then make the main shaft of third motor 26 drive the rotation of circular gear 27, circular gear 27 drives spur rack 28 downstream, make screw feed cylinder 30 be in the tilt state, be convenient for discharge remaining raw materials in the screw feed cylinder 30.

As shown in fig. 1;

fig. 1 is a schematic structural diagram of the present invention.

In an alternative embodiment, the top surface and the bottom surface of the first casing 4 are provided with a plurality of through holes, the through holes of the top surface of the first casing 4 are uniformly distributed on the top surface of the first casing 4, and the through holes of the bottom surface of the first casing 4 are uniformly distributed on the bottom surface of the first casing 4.

As shown in fig. 1;

fig. 1 is a schematic structural diagram of the present invention.

In an alternative embodiment, the screen 8 is arranged in a right-angled trapezoidal configuration.

In this embodiment: this arrangement facilitates the agglomerated material to slide to the lowermost portion of the inclined surface of the screen 8 by gravity, facilitating the discharge of the agglomerated material from the screen 8.

As shown in fig. 1;

fig. 1 is a schematic structural diagram of the present invention.

In an alternative embodiment, the inner side wall of the bottom end surface of the separation tank 1 is inclined.

In this embodiment: this arrangement facilitates the complete discharge of the raw material from the interior of the separator tank 1.

As shown in fig. 1 and 2;

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic side view of the separating box of the present invention.

In an alternative embodiment, the first base 20 is fixed at four corners of the bottom end surface of the separation box 1.

In this embodiment: this arrangement facilitates support of the device.

The utility model discloses a theory of operation and use flow: when the device is used, firstly, a worker energizes the heating plate 7, heats the heating plate for a period of time, then energizes the first motor 5, further causes the main shaft of the first motor 5 to drive the moving blade 6 to rotate, so that the inside of the separation box 1 is kept in a dry state, at the moment, the worker pours a certain amount of raw materials into the separation box 1 from the feeding pipe 2, then plugs the feeding pipe 2 by the first plugging block 3, realizes the separation of the raw materials, dries the raw materials, completely dries the raw materials, prevents the incompletely dried raw materials from absorbing moisture in air to react and agglomerate when the raw materials are conveyed, then energizes the second motor 14, causes the main shaft of the second motor 14 to drive the cam 15 to rotate, further causes the cam 15 to continuously push the striking plate 18 to strike the separation box 1, and prevents the striking plate 18 from damaging the separation box 1 due to the arrangement of the rubber pad 19, the operation of separating the powdery raw material from the blocky raw material is realized more quickly, after the separation is finished, the worker opens the valve to make the caked raw material enter the collecting box 9 through the first communicating pipe 10, the worker can take out the caked raw material in the collecting box 9 by pulling out the second block 12, the powdery raw material is discharged into the spiral feeding barrel 30 through the second communicating pipe 21, at the moment, the fourth motor 31 is electrified, further, the main shaft of the fourth motor 31 drives the spiral blade rod 32 to rotate, so that the raw material is conveyed to the next link, after the completion of the feeding, some of the incompletely discharged raw material inevitably remains inside the screw feeding cylinder 30, at which time the third motor 26 is energized, further, the third motor 26 is powered on, and the main shaft of the third motor 26 drives the circular gear 27 to rotate, and the circular gear 27 drives the spur rack 28 to move downwards, so that the spiral feeding cylinder 30 is in an inclined state, and the residual raw materials in the spiral feeding cylinder 30 can be discharged conveniently.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a raw materials conveyor for concrete production which characterized in that: the separation box comprises a separation box (1) which is arranged in a hollow structure, the upper part of the front end face of the separation box (1) is communicated with a feeding pipe (2), the top of the inner side wall of the feeding pipe (2) is connected with a first blocking block (3) in a sliding manner, the top end face of the separation box (1) is provided with a through hole, a first box (4) which is arranged in a hollow structure is arranged in the through hole of the separation box (1), the first box (4) is fixedly connected with the separation box (1), a first motor (5) is fixedly arranged at the central position of the inner side wall of the top end face of the first box (4), a second connecting plate (41) is arranged below the first motor (5), the second connecting plate (41) is fixedly connected with the first box (4), a main shaft of the first motor (5) penetrates through the second connecting plate (41), and the main shaft of the first motor (5) is rotatably connected with the second connecting plate (41) through a bearing, a blade (6) is fixedly arranged at the tail end of a main shaft of the first motor (5), a heating plate (7) is arranged below the blade (6), the heating plate (7) is fixedly connected with the first case (4), a screen (8) is fixedly arranged on the inner side wall of the separation case (1), a plurality of through holes are formed in the top end face of the screen (8), the through holes in the top end face of the screen (8) are uniformly distributed on the top end face of the screen (8), a collection case (9) which is arranged in a hollow structure is fixedly arranged below the right end face of the separation case (1), a first communication pipe (10) is arranged above the screen (8), a valve is fixedly arranged at the left part of the inner side wall of the first communication pipe (10), the first communication pipe (10) is communicated with the collection case (9), a first discharging pipe (11) is communicated with the central position of the bottom end face of the collection case (9), the inner side wall lower part of the first discharging pipe (11) is connected with a second plugging block (12) in a sliding mode, a second case (13) which is arranged in a concave structure is fixedly arranged at the position of the center of the bottom end face of the separating box (1), a second motor (14) is fixedly arranged below the inner side wall of the front end face of the second case (13), a cam (15) is fixedly arranged at the tail end of a main shaft of the second motor (14), a first connecting plate (16) is arranged above the cam (15), the first connecting plate (16) is fixedly connected with the second case (13), springs (17) are fixedly arranged on the left side and the right side of the bottom end face of the first connecting plate (16), a hitting plate (18) which is arranged in a T-shaped structure is fixedly arranged at the other end of each spring (17), the outer side wall of each cam (15) is connected with a cross rod of the hitting plate (18) in a sliding mode, a vertical rod of the hitting plate (18) penetrates through the first connecting plate (16) and extends to the outside, the vertical rod of the striking plate (18) is connected with the cam (15) in a sliding manner, a rubber mat (19) is fixedly arranged on the top end face of the vertical rod of the striking plate (18), a second communicating pipe (21) is communicated with the lower portion of the left end face of the separating box (1), a second base (22) is arranged on the left side of the separating box (1), a stand column (24) is fixedly arranged on the top end face of the second base (22), a third base (23) is arranged on the left side of the second base (22), a groove is formed in the top end face of the third base (23), a third case (25) is arranged in the groove of the third base (23), the third case (25) is connected with the third base (23) in a sliding manner, a third motor (26) is fixedly arranged on the front side above the left end face of the third case (25), and a main shaft of the third motor (26) penetrates through the third case (25) and extends to the inside, the main shaft of third motor (26) with third machine case (25) rotates to be connected, the fixed round gear (27) that is equipped with in main shaft end of third motor (26), the meshing of the lateral wall rear portion of round gear (27) has spur rack (28), the top terminal surface of spur rack (28) runs through third machine case (25) and extends to the outside, spur rack (28) with third machine case (25) are sliding connection, spur rack (28) with the top terminal surface of stand (24) all is connected with supporting shoe (29) through the pivot rotation, two the fixed spiral feed cylinder (30) that are the setting of indent structure that are equipped with of top terminal surface of supporting shoe (29), the fixed fourth motor (31) that is equipped with of right terminal surface of spiral feed cylinder (30), the main shaft of fourth motor (31) runs through the terminal surface of spiral feed cylinder (30) and extends to inside, the main shaft of the fourth motor (31) is rotatably connected with the spiral feeding barrel (30), a spiral blade rod (32) is fixedly arranged at the tail end of the main shaft of the fourth motor (31), a protection box (33) which is arranged in a concave structure is fixedly arranged on the right side of the top end face of the spiral feeding barrel (30), and the other end of the second communicating pipe (21) is communicated with the protection box (33).

2. The raw material conveying apparatus for concrete production according to claim 1, characterized in that: the top end face and the bottom end face of the first case (4) are both provided with a plurality of through holes, the through holes of the top end face of the first case (4) are uniformly distributed on the top end face of the first case (4), and the through holes of the bottom end face of the first case (4) are uniformly distributed on the bottom end face of the first case (4).

3. The raw material conveying apparatus for concrete production according to claim 1, characterized in that: the screen (8) is arranged in a right-angled trapezoid structure.

4. The raw material conveying apparatus for concrete production according to claim 1, characterized in that: the inner side wall of the bottom end surface of the separation box (1) is arranged in an inclined manner.

5. The raw material conveying apparatus for concrete production according to claim 1, characterized in that: four corners of the bottom end face of the separation box (1) are fixedly provided with first bases (20).