CN-224208500-U - Screening machine is used in hydroxypropyl methylcellulose production

CN224208500UCN 224208500 UCN224208500 UCN 224208500UCN-224208500-U

Abstract

The utility model discloses a screening machine for hydroxypropyl methyl cellulose production, which comprises a screening machine shell, wherein a movable groove is formed in the outer wall of the screening machine shell, a screen is connected to the inner wall of the screening machine shell in a rotating mode through a rotating rod, a pushing block which is arranged on the movable groove in a sliding mode is fixedly connected to the other side of the screen, a feeding machine shell is fixedly connected to the upper portion of the screening machine shell, the screening machine further comprises an electrostatic treatment unit, the electrostatic treatment unit comprises an ion air bar arranged above the feeding machine shell, and an air outlet machine shell is communicated with the lower portion of the ion air bar. The utility model belongs to the technical field of screening devices, and effectively solves the problems that in the screening process of hydroxypropyl methyl cellulose, a screen is easy to block and the processing efficiency is affected due to the fact that static electricity is easy to generate due to material characteristics.

Inventors

SU CHAOJIAN
Zhao Zhancun
YU YAJIE
WU XIDONG
GAO QINGHUI
LI MINGMING
ZHU LIXIN
Su Suoli
SU YANXIAO

Assignees

沧州渤海新区安信化学有限公司

Dates

Publication Date: 20260508
Application Date: 20250425

Claims (6)

1. The screening machine for producing the hydroxypropyl methyl cellulose comprises a screening machine shell (1) and is characterized in that a movable groove (11) is formed in the outer wall of the screening machine shell (1), a screen (12) is rotatably connected to the inner wall of the screening machine shell (1) through a rotating rod, a pushing block (13) which is slidably arranged on the movable groove (11) is fixedly connected to the other side of the screen (12), and a feeding machine shell (14) is fixedly connected to the upper portion of the screening machine shell (1) and further comprises an electrostatic treatment unit; The static treatment unit comprises an ion air bar (2) arranged above a feeding machine shell (14), and an air outlet machine shell (21) is communicated with the lower part of the ion air bar (2).
2. The screening machine for hydroxypropyl methylcellulose production of claim 1, wherein the lower part of the air outlet machine shell (21) is fixedly connected with a communication machine shell (3) and a diversion machine shell (31), the generated ion wind acts on the upper side and the lower side of the screen (12) respectively, the communication machine shell (3) is communicated with the feeding machine shell (14), and the diversion machine shell (31) is communicated with the side surface of the screening machine shell (1) through a plurality of groups of pipelines (32).
3. The screening machine for hydroxypropyl methylcellulose production of claim 1, wherein the side wall of the feeding machine shell (14) is provided with a through groove (4), a bottom plate (41) is fixedly connected to the outer side of the feeding machine shell (14), a feeding barrel (42) movably inserted in the through groove (4) is slidably arranged on the bottom plate (41), an electric push rod (43) is fixedly connected to the upper portion of the bottom plate (41) through a frame, and the output end of the electric push rod (43) is fixedly connected with the feeding barrel (42).
4. The screening machine for hydroxypropyl methylcellulose production of claim 3, wherein a feed hopper (5) is arranged above the bottom plate (41), connecting frames (51) fixedly connected to two sides of the bottom plate (41) are integrally formed on two sides of the feed hopper (5), and a baffle plate (52) matched with an outlet at the lower end of the feed hopper (5) is fixedly connected to the outer wall of the feed cylinder (42).
5. The screening machine for hydroxypropyl methylcellulose production according to claim 1, wherein a supporting seat (6) is fixedly connected to the outer wall of the screening machine shell (1), a U-shaped equipment frame (61) is fixedly connected to the upper portion of the supporting seat (6), a motor (62) is arranged on the U-shaped equipment frame (61), and a cam (63) matched with the pushing block (13) is fixedly connected to the output end of the motor (62).
6. The screening machine for hydroxypropyl methylcellulose production of claim 1, wherein the outer wall of the screening machine shell (1) is fixedly connected with a limiting seat (7) positioned above the pushing block (13), and the lower part of the limiting seat (7) is fixedly connected with a reset spring (71) matched with the pushing block (13).

Description

Screening machine is used in hydroxypropyl methylcellulose production Technical Field The utility model belongs to the technical field of screening devices, and particularly relates to a screening machine for hydroxypropyl methyl cellulose production. Background Hydroxypropyl methyl cellulose is a kind of non-ionic cellulose mixed ether, is a semisynthetic, inactive and viscoelastic polymer, is often used as a lubricating department in ophthalmology, or is used as an auxiliary material or excipient in oral medicines, is often used as various different types of commodities, and can be used as a food additive, and can play the roles of emulsifying agent, thickening agent, suspending agent and substitute of animal gelatin. Hydroxypropyl methyl cellulose belongs to high molecular cellulose ethers, is an excellent insulator in a dry state, is easy to generate static electricity when powder flows, and has influence on the screening process, wherein static electricity adsorption leads to agglomeration of fine powder and blockage of sieve pores, so that materials adhere to the sieve to cause cross contamination, and the subsequent processing and the product quality are influenced. Disclosure of utility model The utility model aims to solve the technical problems that in the screening process of hydroxypropyl methyl cellulose, a screen is easy to be blocked due to static electricity which is easy to be generated due to the characteristics of materials, and the processing efficiency is influenced. The technical scheme adopted by the utility model is as follows: The utility model provides a screening machine for hydroxypropyl methyl cellulose production, which comprises a screening machine shell, wherein a movable groove is formed in the outer wall of the screening machine shell, a screen is connected to the inner wall of the screening machine shell in a rotating way through a rotating rod, a pushing block which is arranged on the movable groove in a sliding way is fixedly connected to the other side of the screen, and a feeding machine shell is fixedly connected to the upper part of the screening machine shell; The static treatment unit comprises an ion wind rod arranged above the feeding machine shell, and the lower part of the ion wind rod is communicated with the air outlet machine shell. Further, the lower part of the air outlet machine shell is fixedly connected with a communication shell and a diversion shell, generated ion wind acts on the upper side and the lower side of the screen respectively, the communication shell is communicated with the feeding shell, and the diversion shell is communicated with the side face of the screening shell through a plurality of groups of pipelines. Further, a through groove is formed in the side wall of the feeding machine shell, a bottom plate is fixedly connected to the outer side of the feeding machine shell, a feeding barrel movably inserted in the through groove is slidably arranged on the bottom plate, an electric push rod is fixedly connected to the upper portion of the bottom plate through a frame, and the output end of the electric push rod is fixedly connected with the feeding barrel. Further, the bottom plate top is equipped with the feeder hopper, the integrated into one piece of feeder hopper both sides has the link of rigid coupling in the bottom plate both sides, the rigid coupling has the striker plate with feeder hopper lower extreme export matched with on the feeding cylinder outer wall. Further, a supporting seat is fixedly connected to the outer wall of the screening machine shell, a U-shaped equipment frame is fixedly connected to the upper portion of the supporting seat, a motor is arranged on the U-shaped equipment frame, and a cam matched with the pushing block is fixedly connected to the output end of the motor. Further, a limiting seat positioned above the pushing block is fixedly connected on the outer wall of the screening machine shell, and a reset spring matched with the pushing block is fixedly connected on the lower part of the limiting seat. The beneficial effects obtained by the utility model by adopting the structure are as follows: 1. The ion wind bar is arranged to generate negative ions in the material flowing direction, so that the problem that the screen is easy to block due to static electricity of the material can be reduced; 2. The ion wind acts on the upper side and the lower side of the screen mesh to neutralize the static electricity of the screen mesh and the surface powder, and the lower ion wind directly neutralizes the static electricity of the falling powder, so that the particles are prevented from being adhered to the bottom of the screen mesh due to the static electricity. Drawings FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model; FIG. 2 is a schematic view of the overall structure of another view according to the embodiment of the present utility model; FIG. 3 is a refer