CN-114178167-B - Dust-free screening elevator for powder

CN114178167BCN 114178167 BCN114178167 BCN 114178167BCN-114178167-B

Abstract

The invention discloses a dust-free powder screening elevator which comprises a screening lifting unit and a screening barrel, wherein the screening lifting unit comprises a lifting barrel and a screening barrel, a lifting chamber and a discharging chamber are arranged in the lifting barrel, the screening barrel is coaxially arranged in the lifting chamber in a rotating mode, a spiral plate is arranged on the whole body of the screening barrel in a spiral mode, a screen is arranged on the upper surface of the spiral plate, an opening in the bottom of the screening barrel extends into the discharging chamber, the discharging unit comprises a barrel cover and a collecting hopper, the bottom of the collecting hopper is provided with a discharging barrel, an elastic piece and a connecting rod, an avoidance groove is formed in the discharging barrel, a sliding rod is arranged on the barrel cover, a claw cover is arranged on the sliding rod in a sliding mode, and the claw cover is inserted into the discharging barrel through the avoidance groove. Through reasonable structural design, the powder screening device can screen powder with different fineness while lifting, saves working procedures, improves efficiency, does not generate dust while lifting and screening, and is healthy, environment-friendly, safe and reliable.

Inventors

CHU DEJUN
YOU HONGYU
CHU DELIN
CHU DEXIANG
CHU ZHIGANG

Assignees

扬州正大机械制造有限公司

Dates

Publication Date: 20260505
Application Date: 20211029

Claims (8)

1. A dust-free powder screening elevator comprising: The screening and lifting unit comprises a lifting cylinder and a screening cylinder, wherein a lifting chamber and a discharging chamber are arranged in the lifting cylinder, a feeding hole and a discharging hole are respectively arranged at the bottom and the top of the lifting chamber, the screening cylinder is coaxially and rotatably arranged in the lifting chamber, a spiral plate is spirally arranged on the whole body of the screening cylinder, a screen is arranged on the upper surface of the spiral plate, the screen is communicated with the inside of the screening cylinder, the bottom of the screening cylinder is opened, and the bottom of the screening cylinder stretches into the discharging chamber; The discharging unit comprises a cylinder cover covering the bottom of the discharging chamber and a collecting hopper arranged in the discharging chamber in a sliding manner, a discharging cylinder, an elastic piece and a connecting rod are arranged at the bottom of the collecting hopper, an avoidance groove is formed in the discharging cylinder, the elastic piece is positioned between the cylinder cover and the collecting hopper, the connecting rod penetrates out of the cylinder cover, a sliding rod is arranged on the cylinder cover, a claw cover is arranged on the sliding rod in a sliding manner, the claw cover is hinged with the connecting rod, and the claw cover is inserted into the discharging cylinder through the avoidance groove; The driving unit is arranged on the lifting cylinder and connected with the screening cylinder and used for driving the screening cylinder to rotate; The connecting rod comprises a first connecting rod and a second connecting rod, the first connecting rod is arranged at the bottom of the collecting bucket and penetrates out through the bottom of the cylinder cover, one end of the second connecting rod is hinged to the end part of the first connecting rod penetrating out of the cylinder cover, the sliding rod is arranged at the bottom of the cylinder cover, a sliding block is arranged on the sliding rod in a sliding mode, the other end of the second connecting rod is hinged to the sliding block, the first claw cover and the second claw cover are arranged on the two sliding blocks in a corresponding mode, the first claw cover and the second claw cover are arranged on the two sliding blocks respectively, the avoidance groove is formed in the discharging cylinder along the direction of the central axis of the lifting cylinder, and the first claw cover and the second claw cover are inserted into the avoidance groove; the whole body spiral of a screening cylinder is provided with a communication port, the maximum diameter of the spiral plate is consistent with the inner diameter of the lifting chamber, the inside of the spiral plate is hollow to form a screening chamber, and the screening chamber is respectively communicated with the screen and the communication port.
2. The dust-free powder screening elevator according to claim 1, wherein the first claw cover and the second claw cover are respectively provided with three tines and two tines, the avoidance groove is respectively provided with three and two on the sides of the first claw cover and the second claw cover, the first claw cover and the second claw cover are inserted into the discharging cylinder through the avoidance groove, and the discharging cylinder is completely blocked after the first claw cover and the second claw cover are spliced.
3. The dust-free powder screening elevator as set forth in claim 2, wherein the elastic member is a spring.
4. The dust-free powder screening elevator according to claim 1, wherein the lifting cylinder is hollow, a partition plate is arranged in the lifting cylinder and divides the hollow part of the lifting cylinder into the lifting chamber and the discharging chamber, the feeding hole and the discharging hole are communicated with the lifting chamber, the feeding hole is positioned at the bottom of the lifting chamber, and the discharging hole is positioned at the top of the lifting chamber.
5. The dust-free powder screening elevator according to claim 4, wherein the screening cylinder is hollow, the top end is closed, the bottom end is open, the hollow part of the screening cylinder forms a collecting chamber, and the top end of the screening cylinder is not lower than the discharge hole.
6. The dust-free powder screening elevator according to claim 1, wherein a guide hole is formed in the bottom of the cylinder cover along the central axis of the lifting cylinder, and the discharging cylinder is slidably arranged in the guide hole.
7. The dust-free powder screening elevator according to claim 1, wherein the collecting hopper is funnel-shaped.
8. The dust-free powder screening elevator as set forth in claim 1, wherein the driving unit includes a motor and a driving shaft, the motor is disposed at a top end of the elevator shaft, the driving shaft is disposed at a free end of the motor, and the driving shaft penetrates into the elevator shaft and is connected with the screening shaft.

Description

Dust-free screening elevator for powder Technical Field The invention relates to the technical field of elevators, in particular to a dust-free screening elevator for powder. Background When preparing powder such as flour, the raw materials of particles or blocks need to be crushed and rolled for many times to improve the quality of the powder. The raw materials are put into the equipment from a high place, and the raw materials pass through a grinding disc of the equipment under the action of gravity, so that the raw materials are changed into powder and discharged. However, once crushing and rolling are generally difficult to make all raw materials into powder with qualified fineness, and two or three times of crushing and rolling are needed, and the raw materials processed in the previous time are needed to be lifted to a higher height for re-feeding. The traditional lifting method is that the raw materials processed in the previous time are screened out by a screening machine, the raw materials with qualified fineness are selected, and the raw materials with unqualified fineness are lifted by a lifting machine. The traditional elevator usually uses a pipeline to absorb, and part of powder can be scattered everywhere under strong air flow, so that the health of personnel and the environmental safety are seriously threatened. Disclosure of Invention The invention aims to solve the technical problem of providing the dust-free powder screening elevator, which can realize screening of powder with different fineness while lifting through reasonable structural design, saves working procedures, improves efficiency, does not generate dust while lifting and screening, and is healthy, environment-friendly, safe and reliable. The invention provides a dust-free screening lifter for powder, which comprises a screening lifting unit and a discharging unit, wherein the screening lifting unit comprises a lifting cylinder and a screening cylinder, a lifting chamber and a discharging chamber are arranged in the lifting cylinder, a feeding hole and a discharging hole are respectively formed in the bottom and the top of the lifting chamber, the screening cylinder is coaxially and rotatably arranged in the lifting chamber, a spiral plate is spirally arranged on the whole body of the screening cylinder, a screen is arranged on the upper surface of the spiral plate, the screen is communicated with the inside of the screening cylinder, the bottom of the screening cylinder is opened, the bottom of the screening cylinder stretches into the discharging chamber, the discharging unit comprises a cylinder cover covering the bottom of the discharging chamber and a collecting hopper slidably arranged in the discharging chamber, a discharging cylinder, an elastic piece and a connecting rod are arranged on the discharging cylinder, an avoidance groove is formed in the discharging cylinder, the elastic piece is positioned between the cylinder cover and the collecting hopper, the connecting rod penetrates through the cylinder cover, a sliding rod is arranged on the sliding rod cover, and is provided with a lifting claw which is slidably arranged in the sliding rod, and the driving claw is connected with the discharging unit through the driving claw, and the driving claw is arranged in the discharging cylinder. In a preferred embodiment of the invention, the collecting bucket further comprises a first connecting rod and a second connecting rod, wherein the first connecting rod is arranged at the bottom of the collecting bucket and penetrates out from the bottom of the cylinder cover, one end of the second connecting rod is hinged to the end part of the first connecting rod penetrating out of the cylinder cover, the sliding rod is arranged at the bottom of the cylinder cover, a sliding block is arranged on the sliding rod in a sliding manner, the other end of the second connecting rod is hinged to the sliding block, the claw covers comprise a first claw cover and a second claw cover which are opposite, the first claw cover and the second claw cover are respectively arranged on the two sliding blocks, the avoidance groove is formed in the discharging cylinder along the direction of the central axis of the lifting cylinder, and the first claw cover and the second claw cover are inserted into the avoidance groove. In a preferred embodiment of the present invention, the first jaw cover and the second jaw cover have three tines and two tines, respectively, the avoidance groove has three and two avoidance grooves on the sides of the first jaw cover and the second jaw cover, respectively, and the first jaw cover and the second jaw cover are inserted into the discharge cylinder through the avoidance groove, and after being spliced, completely block the discharge cylinder. In a preferred embodiment of the present invention, the elastic member is a spring. In a preferred embodiment of the present invention, the lifting cylinder further includes a hollo