CN211385753U

CN211385753U - Sand grain screening device

Info

Publication number: CN211385753U
Application number: CN201922287075.3U
Authority: CN
Inventors: 杨淼; 朱兴基; 张锦; 周媛
Original assignee: Fujian Yijian Group Co ltd
Current assignee: Fujian Yijian Group Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-09-01
Anticipated expiration: 2029-12-18

Abstract

The utility model relates to a sand sieving mechanism, including the conveyer belt, still include feeder hopper, screen cloth mounting bracket includes landing leg, backup pad, screen cloth frame, the lower surface mounting of backup pad the landing leg, install the screen cloth frame in the backup pad, turn right from a left side and install first screen cloth, second screen cloth, third screen cloth respectively for the screen cloth frame, first screen cloth the second screen cloth all be provided with the funnel under the third screen cloth, the funnel below all is provided with out the hopper, be provided with spiral decurrent hot runner in going out the hopper. The vibrating screen has the advantages that the structure is novel, the operation is convenient, the vibrating screen is enabled to realize vibrating screening through the vibrating motor, sand grains of various specifications can be screened at the same time, and the screened sand grains can be dried; the sand grains left after screening are discharged from the rightmost side of the screen frame, and the screening efficiency is high.

Description

Sand grain screening device

Technical Field

The utility model relates to a construction technical field, especially a sand grain sieving mechanism.

Background

The building construction refers to production activities in the engineering construction implementation stage, is the construction process of various buildings, and also can be a process of changing various lines on a design drawing into a real object at a specified place. The method comprises foundation engineering construction, main structure construction, roofing engineering construction, decoration engineering construction and the like. The site of the construction work is called a "construction site" or "job site", also called a worksite. In the building work progress, the sand grain needs to sieve the material as the building material commonly used before using, and traditional screening mode adopts artifical mode to go on, and not only intensity of labour is big, and screening efficiency is low moreover, is difficult to satisfy the building construction demand. Some existing sand grain screening machines can only screen sand grains with one size, and multiple screening processes are needed for screening.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems, the utility model aims to provide a sand grain screening device, which screens sand grains of various specifications simultaneously.

The embodiment of the utility model provides an in adopt following scheme to realize: the sand screening device comprises a conveyor belt, a feed hopper and a screen mounting rack, wherein the screen mounting rack comprises support legs, a support plate and a screen frame, the support legs are mounted on the lower surface of the support plate, the screen frame is mounted on the support plate, a first screen, a second screen and a third screen are respectively mounted on the screen frame from left to right, the mounting height is gradually reduced, funnels are arranged below the first screen, the second screen and the third screen, discharge hoppers are arranged below the funnels, and hot runners which are arranged in spiral downward directions are arranged in the discharge hoppers; a telescopic supporting leg is connected between the left part of the lower surface of the screen frame and the supporting plate, and a buffer supporting leg is connected between the lower surface of the screen frame and the supporting plate; the feeder hopper sets up the top of first screen cloth, the end of conveyer belt stretches into in the feeder hopper.

The utility model relates to an embodiment, telescopic support leg is including installing the telescopic cylinder in the backup pad and the first buffer spring who is connected telescopic cylinder top and screen cloth frame lower surface, first buffer spring with be provided with vibrating motor between the screen cloth frame lower surface.

The utility model relates to an embodiment, the buffering supporting leg includes bracing piece, second buffer spring, connecting block, second buffer spring bottom mounting is in the backup pad, second buffer spring's top fixed connection the connecting block, the top of connecting block in the lower part of bracing piece is articulated, the top of bracing piece with also be provided with vibrating motor between the lower surface of screen frame.

The utility model relates to an embodiment, go out the hopper and install in the backup pad, it wears out downwards to go out the hopper the backup pad.

In an embodiment of the present invention, the mesh number of the first screen is greater than the mesh number of the second screen, and the mesh number of the second screen is greater than the mesh number of the third screen.

The utility model relates to an embodiment, it is separated to be provided with the gate in the screen cloth frame first screen cloth the second screen cloth the third screen cloth, the discharge gate has been seted up to the right-hand member of screen cloth frame, also install the gate in the discharge gate.

The utility model relates to an embodiment, the support frame is installed to the left part of backup pad, install on the support frame the feeder hopper.

The utility model has the advantages that: the utility model provides a sand screening device, which has novel structure and convenient operation, and can realize the vibration screening of a screen mesh through a vibration motor, simultaneously screen sand of various specifications and dry the screened sand; the sand grains left after screening are discharged from the rightmost side of the screen frame, and the screening efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of a sand screening device.

Fig. 2 is a schematic sectional structure diagram of a sand screening device.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 to 2, the utility model provides a sand screening device, including conveyer belt 1, still include feeder hopper 2, screen cloth mounting bracket 3 includes landing leg 31, backup pad 32, screen cloth frame 33, the lower surface mounting of backup pad 32 the landing leg 31, install screen cloth frame 33 on the backup pad 32, first screen cloth 5, second screen cloth 6, third screen cloth 7 are installed respectively from left to right to screen cloth frame 33, and the mounting height reduces gradually, first screen cloth 5, second screen cloth 6, third screen cloth 7 all are provided with funnel 4 below, all be provided with hopper 10 below funnel 4, be provided with the hot runner 12 of the downward spiral of dish in the hopper 10; a telescopic supporting leg 11 is connected between the left part of the lower surface of the screen frame 33 and the supporting plate 32, and a buffer supporting leg 13 is connected between the lower surface of the screen frame 33 and the supporting plate 32; the feed hopper 2 is arranged above the first screen 5, and the tail end of the conveyor belt 1 extends into the feed hopper 2; the sand grains that need to be sieved are conveniently conveyed into the feed hopper.

Referring to fig. 1 and fig. 2, in an embodiment of the present invention, the telescopic support leg 11 includes a telescopic cylinder 111 installed on the support plate 32 and a first buffer spring 13 connected between the top end of the telescopic cylinder 111 and the lower surface of the screen frame 33, and a vibration motor 16 is disposed between the first buffer spring 13 and the lower surface of the screen frame 33 for vibrating and screening sand.

Please continue to refer to fig. 1 and fig. 2, in an embodiment of the present invention, the buffering support leg 13 includes a support rod 18, a second buffering spring 14 and a connection block 14, a bottom end of the second buffering spring 14 is fixed on the support plate 32, a top end of the second buffering spring 14 is fixedly connected to the connection block 17, a top portion of the connection block 17 is hinged to a lower portion of the support rod 18, and a vibration motor 16 is also disposed between a top end of the support rod 18 and a lower surface of the screen frame 33 for performing vibration screening on sand grains.

Referring to fig. 1 and 2, in an embodiment of the present invention, the discharge hopper 10 is mounted on the supporting plate 32, and the discharge hopper 10 penetrates through the supporting plate 32.

Referring to fig. 1 and fig. 2, in an embodiment of the present invention, the mesh number of the first screen 5 is larger than that of the second screen 6, and the mesh number of the second screen 6 is larger than that of the third screen 7.

Referring to fig. 1 and 2, in an embodiment of the present invention, a gate is disposed in the screen frame 33 to separate the first screen 5, the second screen 6, and the third screen 7, a discharge hole 8 is disposed at a right end of the screen frame 33, and a gate 9 is also disposed in the discharge hole 8.

Referring to fig. 1 and 2, in an embodiment of the present invention, a support frame 15 is installed at a left portion of the support plate 32, and the feed hopper 2 is installed on the support frame 15.

The utility model discloses the theory of operation below has:

in transporting into the feeder hopper through the conveyer belt with the sand grain that needs sieve, on the sand grain flowed into the first screen cloth in the screen cloth frame from the export of feeder hopper, all vibrating motor continued work to select thin sand grain, the sand grain falls down the back from first screen cloth, falls into the funnel under the first screen cloth after, falls into out the interior runner of rotating through the dish of play hopper, thereby the runner heats the sand grain and dries the sand grain, flows from the runner at last, accomplishes the screening work of thin sand grain. After 5min, the telescopic cylinder is pushed upwards to incline the whole screen frame, a gate for separating the first screen from the second screen is opened, meanwhile, the vibration motor vibrates to enable the residual sand grains on the first screen to flow into the second screen, the gate is closed, the telescopic cylinder retracts, the vibration motor continuously works, and the second screen screens out coarse sand grains; meanwhile, the conveyer belt conveys new non-screened sand grains into the first screen to screen fine sand grains. After the screening of the slightly coarse sand grains is finished; the telescopic cylinder is pushed out, the gate for separating the second screen from the third screen is opened, the residual sand grains on the second screen flow into the third screen, the gate for separating the second screen from the third screen is closed, the gate for separating the first screen from the second screen is opened, the residual sand grains on the first screen flow into the second screen, the gate for separating the first screen from the second screen is closed, the conveying belt conveys new sand grains for screening, the telescopic cylinder retracts, the third screen screens screen coarse sand grains at the moment, the second screen screens screen coarse sand grains, and the first screen frame screens fine sand grains. After the third screen mesh finishes screening sand grains, the telescopic cylinder is pushed out to incline the screen mesh frame, and the gate in the discharge port is opened; and vibrating out the sand which is left by the screen and cannot be used, and circulating the steps. The sand grains screened out by the first screen, the second screen and the third screen can be dried through a hot runner in the discharge hopper.

The above description is only for the preferred embodiment of the present invention, and should not be interpreted as limiting the scope of the present invention, which is intended to cover all the equivalent changes and modifications made in accordance with the claims of the present invention.

Claims

1. The utility model provides a sand grain sieving mechanism, includes the conveyer belt, its characterized in that: the hot-runner type screen cloth feeding device comprises a feeding hopper and a screen cloth mounting frame, wherein the screen cloth mounting frame comprises supporting legs, a supporting plate and a screen cloth frame, the supporting legs are mounted on the lower surface of the supporting plate, the screen cloth frame is mounted on the supporting plate, a first screen cloth, a second screen cloth and a third screen cloth are respectively mounted on the screen cloth frame from left to right, the mounting heights of the first screen cloth, the second screen cloth and the third screen cloth are gradually reduced, hoppers are arranged below the first screen cloth, the second screen cloth and the third screen cloth, and spiral hot runners are arranged in the hoppers; a telescopic supporting leg is connected between the left part of the lower surface of the screen frame and the supporting plate, and a buffer supporting leg is connected between the lower surface of the screen frame and the supporting plate; the feeder hopper sets up the top of first screen cloth, the end of conveyer belt stretches into in the feeder hopper.

2. The sand screening apparatus of claim 1, wherein: the telescopic supporting leg comprises a telescopic cylinder arranged on the supporting plate and a first buffer spring connected with the top end of the telescopic cylinder and the lower surface of the screen frame, and a vibration motor is arranged between the first buffer spring and the lower surface of the screen frame.

3. The sand screening apparatus of claim 1, wherein: the buffering supporting leg includes bracing piece, second buffer spring, connecting block, the second buffer spring bottom mounting is in the backup pad, second buffer spring's top fixed connection the connecting block, the top of connecting block in the lower part of bracing piece is articulated, the top of bracing piece with also be provided with vibrating motor between the lower surface of screen frame.

4. The sand screening apparatus of claim 1, wherein: the discharge hopper is arranged on the supporting plate, and the discharge hopper penetrates out of the supporting plate downwards.

5. The sand screening apparatus of claim 1, wherein: the mesh number of the first screen is larger than that of the second screen, and the mesh number of the second screen is larger than that of the third screen.

6. The sand screening apparatus of claim 1, wherein: the screen frame is internally provided with a gate for separating the first screen, the second screen and the third screen, the right end of the screen frame is provided with a discharge port, and the gate is also arranged in the discharge port.

7. The sand screening apparatus of claim 1, wherein: the left part of backup pad is installed the support frame, install on the support frame the feeder hopper.