CN219377912U

CN219377912U - Sand and stone drying and screening device

Info

Publication number: CN219377912U
Application number: CN202320607598.5U
Authority: CN
Inventors: 孙述光; 刘善峰; 王军; 陈军
Original assignee: Qingdao Hehui Concrete Engineering Co ltd
Current assignee: Qingdao Hehui Concrete Engineering Co ltd
Priority date: 2023-03-24
Filing date: 2023-03-24
Publication date: 2023-07-21
Anticipated expiration: 2033-03-24

Abstract

The utility model relates to the technical field of sand and stone processing, and discloses a sand and stone drying and screening device, which comprises a screening box, wherein three conveyor belts are sequentially arranged on the left side surface of the screening box in a penetrating manner from top to bottom, two screening plates are arranged in the screening box from top to bottom, hinge blocks are respectively connected to the front side surface and the rear side surface of the right end of each screening plate in a rotating manner, and a drying mechanism is arranged above the screening box; according to the utility model, the drying mechanism and the screening box respectively perform drying and screening, the drying mechanism performs drying treatment on sand and stone through the heating mechanism, the electric heating tube in the heating mechanism heats air, the hot air is blown into the drying cylinder by the fan, and the auger rod performs stirring and conveying on the sand and stone, so that the contact area of the sand and stone and hot air flow is increased, the drying efficiency is further improved, the sand and stone is prevented from being accumulated and difficult to be dried, the screening box screens the sand and stone through the two screening plates, and finally, the sand and stone are discharged through the three conveying belts.

Description

Sand and stone drying and screening device

Technical Field

The utility model relates to the technical field of sand and stone processing, in particular to a sand and stone drying and screening device.

Background

When dry-mixed mortar is produced, the water content of raw material sand is required to be less than five percent, and the raw material sand is too high to be directly used for dry-mixed mortar production, so that the raw material sand needs to be dried before being used, the water content of the raw material sand reaches the conditions meeting the dry-mixed mortar production requirement, the existing screening device is required to be dried in the screening process, the existing raw material sand is mainly dried by a fan, the drying efficiency is low, and the condition of incomplete drying exists.

Chinese patent discloses a grit stoving screening plant (grant publication No. CN 214289265U), and this patent technology is through evenly distributed in first screen cloth and second screen cloth bottom have the heating wire to can heat, thereby dry the grit granule that rolls on first screen cloth and second screen cloth surface, thereby make stoving more thoroughly; however, when the sand is dried, the vibrator drives the screen to vibrate, but the vibration is used for facilitating sand to rapidly slide down and discharge, most of sand is dried in a stacked state, and cannot be contacted with hot air flow in a large area, so that the drying effect is not ideal. Accordingly, a person skilled in the art provides a sand drying and screening device to solve the problems set out in the background art above.

Disclosure of Invention

The utility model aims to provide a sand drying and screening device so as to solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the sand and stone drying and screening device comprises a screening box, wherein three conveyor belts are sequentially arranged on the left side surface of the screening box in a penetrating manner from top to bottom, two screening plates are arranged in the screening box from top to bottom, hinged blocks are rotatably connected to the front side surface and the rear side surface of the right end of each screening plate, a slide carriage is arranged at the left end of each screening plate, and a supporting plate is arranged below each screening plate on the right side surface of the inside of the screening box; and a drying mechanism is arranged above the screening box.

As still further aspects of the utility model: the lower surface mounting of screening board has vibrating motor, and the lower surface of screening board is located vibrating motor's left side and installs the spring, the fixed plate is installed to the lower extreme of spring.

As still further aspects of the utility model: the drying mechanism comprises a drying cylinder, a feed hopper is installed in a penetrating mode on the left end of the upper surface of the drying cylinder, a plurality of heating mechanisms are evenly installed on the right side of the upper surface of the drying cylinder, an exhaust pipe is installed in a penetrating mode on one side of the upper surface of the drying cylinder, a discharging pipe is installed in a penetrating mode on the right end of the lower surface of the drying cylinder, a motor is installed on the left side surface of the drying cylinder, and a packing auger rod is installed on the right end of the motor.

As still further aspects of the utility model: the heating mechanism comprises a heating seat, a dustproof screen plate is arranged at the upper end of the interior of the heating seat, a fan is arranged below the dustproof screen plate in the interior of the heating seat, and an electric heating tube is arranged below the fan in the interior of the heating seat.

As still further aspects of the utility model: the length of the conveyor belt above is one point twice of that of the conveyor belt below, the hinge block is arranged on the right side surface inside the screening box, and the slide carriage and the supporting plate are respectively positioned above one conveyor belt.

As still further aspects of the utility model: the lower extreme of discharging pipe is just to screening board, auger pole is located the inside of a stoving section of thick bamboo, and the right-hand member rotation of auger pole is connected on the inside right side surface of a stoving section of thick bamboo.

As still further aspects of the utility model: the lower extreme of heating seat is connected in the upper surface of a stoving section of thick bamboo in a penetration way.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the drying mechanism and the screening box respectively perform drying and screening, the drying mechanism performs drying treatment on sand and stone through the heating mechanism, the electric heating tube in the heating mechanism heats air, the hot air is blown into the drying cylinder by the fan, and the auger rod performs stirring and conveying on the sand and stone, so that the contact area of the sand and stone and hot air flow is increased, the drying efficiency is further improved, the sand and stone is prevented from being accumulated and difficult to be dried, the screening box screens the sand and stone through the two screening plates, and finally, the sand and stone are discharged through the three conveying belts.

Drawings

FIG. 1 is a schematic diagram of a sand drying and screening device;

FIG. 2 is a cross-sectional view of a screening box in a sand drying and screening apparatus;

FIG. 3 is a schematic diagram of the conveyor belt in the sand drying and screening device;

FIG. 4 is a schematic diagram of a drying mechanism in a sand drying and screening device;

FIG. 5 is a cross-sectional view of a dryer cartridge in a sand drying and screening apparatus;

FIG. 6 is a schematic diagram of the heating mechanism in the sand drying and screening device.

In the figure: 1. a screening box; 2. a conveyor belt; 3. a screening plate; 4. a hinge block; 5. a slide carriage; 6. a vibration motor; 7. a spring; 8. a fixing plate; 9. a support plate; 10. a drying mechanism; 11. a drying cylinder; 12. a feed hopper; 13. a heating mechanism; 14. an exhaust pipe; 15. a discharge pipe; 16. a motor; 17. a hank Long Gan; 18. a heating seat; 19. a dust-proof screen; 20. a blower; 21. an electric heating tube; 22. sand stone.

Detailed Description

Referring to fig. 1 to 6, in the embodiment of the present utility model, a sand drying and screening device includes a screening box 1, wherein three conveyor belts 2 are sequentially installed on a left side surface of the screening box 1 from top to bottom in a penetrating manner, a length of an upper conveyor belt 2 is two times that of an adjacent lower conveyor belt 2, two screening plates 3 are installed inside the screening box 1 from top to bottom, a hinge block 4 is rotatably connected to front and rear side surfaces of a right end of the screening plate 3, the hinge block 4 is installed on an inner right side surface of the screening box 1, a slide carriage 5 is installed at a left end of the screening plate 3, a vibrating motor 6 is installed on a lower surface of the screening plate 3, a spring 7 is installed on a left side of the vibrating motor 6, a fixed plate 8 is installed at a lower end of the spring 7, a support plate 9 is installed on an inner right side surface of the screening box 1 below the screening plate 3, and the slide carriage 5 and the support plate 9 are respectively located above the one conveyor belt 2; the conveyer belt 2 is used for conveying away the grit 22 that sieves, and the screening aperture of top screening board 3 is greater than the screening aperture of below screening board 3, and vibrating motor 6 can drive screening board 3 vibration, makes things convenient for grit 22 landing, and the left end of carriage apron 5 is narrower than the right-hand member for grit 22 can fall in the intermediate position department of conveyer belt 2.

In fig. 1 and fig. 4 to 6: the upper part of the screening box 1 is provided with a drying mechanism 10, the drying mechanism 10 comprises a drying cylinder 11, a feed hopper 12 is installed in a penetrating manner at the left end of the upper surface of the drying cylinder 11, a plurality of heating mechanisms 13 are evenly installed on the right side of the upper surface of the drying cylinder 11, an exhaust pipe 14 is installed in a penetrating manner at one side of the upper surface of the heating mechanism 13, the exhaust pipe 14 is small enough to avoid hot air flow to be discharged quickly, a discharging pipe 15 is installed in a penetrating manner at the right end of the lower surface of the drying cylinder 11, the lower end of the discharging pipe 15 is right to the screening plate 3, a motor 16 is installed on the left side surface of the drying cylinder 11, a packing auger 17 is installed at the right end of the motor 16, the packing auger 17 is located inside the drying cylinder 11, the right end of the packing auger 17 is connected to the right side surface of the inside of the drying cylinder 11 in a rotating manner, the heating mechanism 13 comprises a heating seat 18, the lower end of the heating seat 18 is connected to the upper surface of the drying cylinder 11 in a penetrating manner, a dustproof screen 19 is installed at the upper end of the inside of the heating seat 18, a fan 20 is installed below the heating seat 18, and a fan 21 is installed below the inside the heating seat 18 is located below the fan 20, and the inside of the heating seat 18 is located below the fan 21 is installed; auger stem 17 can stir grit 22 and carry on the right side, and fan 20 is used for sucking outside air, and electrothermal tube 21 is used for heating the air and carries out the stoving processing to grit 22.

The working principle of the utility model is as follows: when the sand and stone 22 is dried and screened, firstly, the sand and stone 22 enters the drying cylinder 11 through the feed hopper 12, the motor 16 drives the auger rod 17 to rotate, and the auger rod 17 stirs the sand and stone 22 and conveys the sand and stone 22 to the right side; at the same time, the electric heating tube 21 heats the air, the fan 20 blows the hot air into the drying cylinder 11, thereby drying the sand 22, the stirred sand 22 increases the contact area with the hot air flow, thereby improving the drying efficiency, and the water vapor is discharged through the exhaust pipe 14; the dried sand and stones 22 are discharged into the screening box 1 through the discharging pipe 15, firstly fall onto the upper screening plate 3 for screening, then fall onto the lower screening plate 3 for screening, and finally the sand and stones 22 with three specifications which are screened out are respectively conveyed out through the corresponding conveying belts 2.

The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. The sand and stone drying and screening device comprises a screening box (1), and is characterized in that three conveying belts (2) are sequentially arranged on the left side surface of the screening box (1) in a penetrating mode from top to bottom, two screening plates (3) are arranged in the screening box (1) from top to bottom, hinge blocks (4) are rotatably connected to the front side surface and the rear side surface of the right end of each screening plate (3), a slide carriage (5) is arranged at the left end of each screening plate (3), and a supporting plate (9) is arranged below each screening plate (3) on the right side surface of the inside of the screening box (1); and a drying mechanism (10) is arranged above the screening box (1).

2. The sand and stone drying and screening device according to claim 1, characterized in that the lower surface of the screening plate (3) is provided with a vibrating motor (6), and the lower surface of the screening plate (3) is provided with a spring (7) on the left side of the vibrating motor (6), and the lower end of the spring (7) is provided with a fixing plate (8).

3. The sand and stone drying and screening device according to claim 1, wherein the drying mechanism (10) comprises a drying cylinder (11), a feed hopper (12) is installed in a penetrating manner at the left end of the upper surface of the drying cylinder (11), a plurality of heating mechanisms (13) are evenly installed on the right side of the upper surface of the drying cylinder (11) located on the feed hopper (12), an exhaust pipe (14) is installed in a penetrating manner at one side of the upper surface of the drying cylinder (11) located on the heating mechanism (13), a discharging pipe (15) is installed in a penetrating manner at the right end of the lower surface of the drying cylinder (11), a motor (16) is installed on the left side surface of the drying cylinder (11), and a screw rod (17) is installed at the right end of the motor (16).

4. A sand and stone drying and screening device according to claim 3, characterized in that the heating mechanism (13) comprises a heating seat (18), a dustproof screen (19) is arranged at the upper end of the interior of the heating seat (18), a fan (20) is arranged below the dustproof screen (19) in the interior of the heating seat (18), and an electric heating tube (21) is arranged below the fan (20) in the interior of the heating seat (18).

5. A sand drying and screening device according to claim 1, characterized in that the length of the upper conveyor belt (2) is doubled compared with the length of the adjacent lower conveyor belt (2), the hinged block (4) is mounted on the inner right surface of the screening box (1), and the slide carriage (5) and the support plate (9) are respectively located above one conveyor belt (2).

6. A sand drying and screening device according to claim 3, characterized in that the lower end of the discharge pipe (15) is directed towards the screening plate (3), the strands Long Gan (17) are located inside the drying cylinder (11), and the right end of the auger stem (17) is rotatably connected to the inside right surface of the drying cylinder (11).

7. The sand drying and screening device according to claim 4, characterized in that the lower end of the heating seat (18) is connected to the upper surface of the drying cylinder (11) in a penetrating way.