CN206701658U - Pulley type screw feeding screening machine - Google Patents

Abstract

A kind of pulley type screw feeding screening machine, it includes warehouse, screening roller and motor, the relatively turnable level frame of the screening roller is located in the warehouse, one end of the screening roller is feed end, the other end is exhaust end, and the feed end is provided with a feed hopper, what the axial direction that the bottom of the warehouse corresponds to the screening roller was sequentially distributed is provided with some hoppers, and the bottom of the warehouse corresponds to the exhaust end for sieving roller and is provided with a hopper；The barrel of the screening roller is the tubular web plate for being covered with sieve aperture, it is fixedly installed on the inwall of the screening roller for the feeding screw piece by material by feed end helical feed to exhaust end, it is coaxial in the screening roller to be inserted with a rotating shaft, and the rotating shaft is fixed on the feeding screw piece, the both ends of the rotating shaft stretch out in the feed end and exhaust end respectively, and one end of the rotating shaft is linked with the motor.

Description

Roller type screw feeding screening machine

technical field

The utility model relates to the field of screening production equipment for precious metal extraction materials, in particular to a roller-type screw feeding screening machine for screening precious metal extraction materials.

Background technique

In the process of extracting precious metals, it is necessary to sieve the precious metal extraction materials, specifically: the materials put into the spiral vibrating screen gradually move centrifugally in a spiral trajectory under the action of the spiral vibration, during this process, the materials smaller than the aperture of the screen are screened to the next In the first layer, the material larger than the pore size of the screen will gradually spiral and centrifugally move to the discharge port. However, during the use of the traditional spiral vibrating screen, the material put into the vibrating screen will move rapidly and centrifugally to the discharge port, and then there will be cases where the material will be sent out from the discharge port if the screening is not complete, and it is difficult to achieve one side while feeding the other. In the case of screening, the new material input will be mixed with the screened material disorderly, which will affect the work efficiency.

Utility model content

The utility model provides a roller-type spiral feeding screening machine. The main technical problem to be solved is that the traditional spiral vibrating screen uses the vibration effect of a vibrating motor to make the precious metal extraction material put into the vibrating screen vibrate on a plane under the action of spiral vibration. The screen is screened by spiral centrifugal motion on the sieve plate, but the distance between the precious metal extraction material from the center of the sieve plate to the outer discharge port is short, and it often moves to the discharge port before the screening is complete, and the screening is not complete; in addition, continuous Feeding will also cause the newly input material to be mixed with the previously input material disorderly, resulting in repeated screening of the already sieved material, while the newly input material will be discharged from the discharge port without being completely sieved.

In order to solve the above technical problems, the technical solution adopted by the utility model is to provide a roller-type screw feeding screening machine, which includes a bin body, a screening roller and a driving motor, and the screening roller can be relatively rotated horizontally In the bin body, one end of the screening roller is the feed end, and the other end is the discharge end, and the feed end is provided with a feed hopper, and the bottom of the bin body corresponds to the screening A number of lower hoppers are arranged sequentially in the axial direction of the roller, and a row of hoppers is arranged at the bottom of the bin corresponding to the discharge end of the screening roller; the wall of the screening roller is covered with sieve holes. A cylindrical mesh plate, the inner wall of the screening roller is fixed with a feeding screw for conveying the material from the feeding end to the discharging end, and a rotating shaft is coaxially inserted in the screening roller, And the rotating shaft is fixed on the feeding screw, the two ends of the rotating shaft protrude from the feeding end and the discharging end respectively, and one end of the rotating shaft is linked with the driving motor.

Preferably: the cylinder wall of the screening roller is composed of several sections of cylindrical mesh panels spliced sequentially along the axial direction, and the number of sections of the cylindrical mesh panels forming the cylinder wall of the screening roller is spliced together with the bottom of the warehouse body. The number of lower hoppers is the same and the positions are one-to-one correspondence. The apertures of the screen holes on several sections of cylindrical screen plates spliced sequentially along the axial direction from the feed end to the discharge end of the screening drum gradually increase.

Preferably: the feed end of the screening roller is provided with a feed nozzle with a diameter gradually converging, the discharge pipe of the feed hopper is inserted into the feed nozzle, and the rotating shaft can relatively rotate through the The discharge pipe; the discharge end of the screening roller is provided with a bell-shaped discharge nozzle whose diameter gradually enlarges, and the discharge hopper corresponds to the bottom of the discharge nozzle.

Preferably, the bottom of the bin body is fixedly provided with a support frame, and the feeding hopper is fixedly installed on the bin body.

Preferably, two ends of the rotating shaft are respectively provided with supports, and the two ends of the rotating shaft are mounted on the two supports so as to be relatively rotatable.

Preferably, one end of the rotating shaft is fixedly provided with a coaxial transmission wheel, and the transmission wheel is linked with the driving motor.

Compared with the prior art, the utility model has the beneficial effects of: using the driving motor to drive the rotating shaft to rotate, and then driving the feeding screw and the screening roller to rotate through the rotating shaft, so as to achieve the purpose of separating the material from the feeding During the process, the conveyed materials are gradually screened by means of the cylindrical mesh plate, and the screened fine materials are collected by the lower hopper at the bottom of the bin body, while the unscreened materials are The coarse material is discharged to the discharge hopper through the discharge end for collection, realizing continuous and efficient material screening.

Description of drawings

Fig. 1 is a schematic cross-sectional view of the overall structure of the utility model.

detailed description

A roller-type screw feeding screening machine proposed by the utility model will be described in more detail below in conjunction with accompanying drawing 1 and preferred embodiments.

The utility model provides a roller-type screw feeding screening machine, which includes a bin body 1, a screening roller 2 and a drive motor 3, the bottom of the bin body 1 is fixedly provided with a support frame 11, and the screening roller 2. Relatively rotatable and horizontal erection in the bin body 1, one end of the screening roller 2 is the feeding end, the other end is the discharging end, and the feeding end 21 is provided with a feeding hopper 4, The feed hopper 4 is fixedly installed on the bin body 1, and the bottom of the bin body 1 is provided with several lower hoppers 12 corresponding to the axial direction of the screening roller 2. A row of hoppers 13 is arranged at the bottom corresponding to the discharge end of the screening drum 2; It is composed of several sections of cylindrical mesh panels spliced in sequence along the axial direction. The number of sections of the cylindrical mesh panels spliced to form the cylinder wall of the screening roller 2 is the same as that of the lower hopper 12 at the bottom of the bin body 1 and the positions are one by one. Correspondingly, the apertures of the sieve holes on several sections of cylindrical screen plates spliced successively along the axial direction from the feed end to the discharge end of the screening drum 2 gradually increase, and the inner wall of the screening drum 2 is fixed A feeding screw 21 is provided for conveying the material from the feeding end to the discharging end in a screw, and a rotating shaft 22 is inserted coaxially inside the screening roller 2, and the rotating shaft 22 is fixed on the feeding screw 21 Above, the two ends of the rotating shaft 22 protrude from the feeding end and the discharging end respectively, and one end of the rotating shaft 22 is linked with the driving motor 3 .

When the utility model is actually implemented, the material is conveyed from the feed end to the discharge end by screw feeding. In the process, the gradually increasing sieve holes on the cylindrical net plate divided into several sections are used to carry out step-by-step screening. , to achieve rapid, continuous and efficient classification and screening of materials.

The feeding end of the screening drum 2 is provided with a feed nozzle 23 with a diameter gradually converging, the discharge pipe 41 of the feed hopper 4 is inserted in the feed nozzle 23, and the rotating shaft 22 can be relatively Rotating through the discharge pipe 41; the discharge end of the screening drum 2 is provided with a discharge nozzle 24 with a diameter gradually enlarged and bell-shaped, and the discharge hopper 13 corresponds to the discharge nozzle 24. Below, the final coarse material remaining from the screening is discharged and collected.

The two ends of the rotating shaft 22 are provided with bearings 25 respectively, and the two ends of the rotating shaft 22 are mounted on the two bearings 25 so as to be relatively rotatable through bearings; one end of the rotating shaft 22 is fixedly provided with a coaxial The transmission wheel 26, the transmission wheel 26 is linked with the drive motor 3.

In summary, the technical solution of the utility model can fully and effectively accomplish the purpose of the above utility model, and the structural principles and functional principles of the utility model have been fully verified in the embodiments, and the expected effect and purpose can be achieved , and the embodiments of the utility model can also be transformed according to these principles, therefore, the utility model includes all replacement contents within the range mentioned in the scope of the patent application. Any equivalent changes made within the patent scope of the utility model application all belong to the patent scope of the present case application.

Claims (6)

1. A roller-type screw feeding screening machine, characterized in that: comprising a bin body, a screening roller and a drive motor, the screening roller can be relatively rotatably horizontally erected in the bin body, the screen One end of the sub-roller is the feed end, and the other end is the discharge end, and the feed end is provided with a feed hopper, and the bottom of the bin body is arranged in sequence corresponding to the axial direction of the screening roller. A number of lower hoppers, the bottom of the bin body is provided with a row of hoppers corresponding to the discharge end of the screening roller; the cylinder wall of the screening roller is a cylindrical mesh plate covered with sieve holes, and the screening The inner wall of the roller is fixed with a feeding screw for conveying the material from the feeding end to the discharging end. A rotating shaft is coaxially inserted in the screening roller, and the rotating shaft is fixed on the feeding screw. On the sheet, the two ends of the rotating shaft protrude from the feeding end and the discharging end respectively, and one end of the rotating shaft is linked with the driving motor. 2. The roller-type screw-feeding screening machine as claimed in claim 1, characterized in that: the cylinder wall of the screening roller is composed of several sections of cylindrical screens spliced sequentially along the axial direction, and the splicing forms the screening The number of segments of the cylindrical screen of the cylinder wall of the roller is the same as the number of the lower hoppers at the bottom of the bin body, and the positions correspond one by one. Several segments spliced in sequence along the axial direction from the feeding end to the discharging end of the screening roller. The diameter of the sieve holes on the segmented cylindrical screen gradually increases. 3. The roller-type screw feeding screening machine as claimed in claim 2, characterized in that: the feeding end of the screening drum is provided with a feeding nozzle with a diameter gradually converging, and the discharge of the feeding hopper The tube is inserted into the feed nozzle, and the shaft can relatively rotate through the discharge tube; the discharge end of the screening drum is provided with a discharge nozzle with a diameter gradually enlarged and in the shape of a bell mouth. The discharge hopper corresponds to the lower part of the discharge nozzle. 4. The roller-type screw feeding screening machine according to claim 3, characterized in that: the bottom of the bin body is fixedly provided with a support frame, and the feeding hopper is fixedly installed on the bin body. 5. The roller-type screw feeding screening machine as claimed in claim 4, characterized in that: the two ends of the rotating shaft are respectively provided with supports, and the two ends of the rotating shaft can be relatively rotatably erected on two said rotating shafts respectively. on the stand. 6. The roller-type screw feeding screening machine according to claim 5, characterized in that: one end of the rotating shaft is fixedly provided with a coaxial transmission wheel, and the transmission wheel is linked with the driving motor.