CN-224202150-U - Vacuum drier feeding and discharging system

CN224202150UCN 224202150 UCN224202150 UCN 224202150UCN-224202150-U

Abstract

The utility model discloses a feeding and discharging system of a vacuum dryer, which comprises a liquid ring vacuum pump, wherein the liquid ring vacuum pump is communicated with a feeding main pipe and a discharging main pipe, the feeding main pipe is communicated with the top of a feeding balance stirring tank through a feeding emptying branch pipe, the feeding main pipe is communicated with the top of a raw material tank through a feeding balance pipe, the discharging main pipe is communicated with the top of a discharging balance stirring tank through a discharging emptying branch pipe, and the discharging main pipe is communicated with the vacuum double-paddle dryer through a discharging balance pipe. The automatic feeding and discharging device has the advantages that the opening and closing sequence control of each valve in the system and the design of vacuum pressure balance in the system are realized, the stable feeding and discharging processes are realized, the leakage and waste of materials are reduced, and meanwhile, the safety of the production process is ensured. According to the production demand, can be through the rotational speed regulation to ejection of compact breaker, the accurate control material granule size satisfies different technological requirements, promotes product quality.

Inventors

HUANG HE
ZHAO MING
ZHAO YONGMING
WANG XIAOHUI
XU ZHIFEI
ZUO XUAN

Assignees

内蒙古卓正煤化工有限公司

Dates

Publication Date: 20260505
Application Date: 20250530

Claims (3)

1. The feeding and discharging system of the vacuum dryer is characterized by comprising a liquid ring vacuum pump, and a feeding stirring tank, a feeding balance stirring tank, a raw material tank, a double-screw conveyor, a vacuum double-paddle dryer, a discharging crusher, a discharging stirring tank and a discharging balance stirring tank which are connected in sequence; A first feeding valve is arranged on a pipeline between the feeding stirring tank and the feeding balance stirring tank, and a second feeding valve is arranged on a pipeline between the feeding balance stirring tank and the raw material tank; The liquid ring vacuum pump is communicated with a feeding main pipe and a discharging main pipe, the feeding main pipe is communicated with the top of the feeding balance stirring tank through a feeding balance pipe, and the feeding main pipe is communicated with the top of the raw material tank through a feeding balance pipe; The discharging main pipe is communicated with the top of the discharging balance stirring tank through a discharging emptying branch pipe, the discharging main pipe is communicated with the vacuum double-paddle dryer through a discharging balance pipe, a first discharging balance valve is arranged on the discharging main pipe, and a second discharging balance valve and a discharging emptying valve are arranged on the discharging balance pipe.
2. The vacuum dryer inlet and outlet system according to claim 1, wherein dust filters are arranged on the inlet emptying branch pipe and the outlet emptying branch pipe.
3. A vacuum dryer feeding and discharging system according to claim 2, wherein a differential pressure sensor is installed at an inlet and an outlet of the dust filter.

Description

Vacuum drier feeding and discharging system Technical Field The utility model relates to the technical field of material drying equipment, in particular to a feeding and discharging system of a vacuum dryer. Background In the feeding and discharging processes of the existing dryer, two stages of charging tanks are connected in series, sealing is formed through the stacking height of materials, but the problems often exist that (1) bridging phenomenon is easy to occur when materials are stacked too high in a feeding tank and a discharging tank, so that material flow is not smooth, production efficiency is affected, (2) vacuum pressure of the dryer is adjusted through a vacuum pump, in order to prevent bridging of the materials, the material storage height of the materials in the two stages of storage tanks can be reduced, but the stacking sealing among the materials is not tight due to the reduction of the material height, air leakage phenomenon exists, the vacuum of the dryer cannot be guaranteed, the drying effect of the materials is affected, and (3) effective treatment measures on dust are lacked, so that the environment is polluted, normal operation and product quality of equipment are possibly affected, and in addition, the particle size of the materials is difficult to control accurately, and the requirements of different production processes cannot be met. Disclosure of utility model The utility model aims to provide a feeding and discharging system of a vacuum dryer, which solves the problems of bridging of materials in a tank, unstable pressure control, improper dust treatment and difficult control of the particle size of the materials, and realizes an efficient, stable and environment-friendly drying production process. The feeding and discharging system of the vacuum dryer comprises a liquid ring vacuum pump, and a feeding stirring tank, a feeding balance stirring tank, a raw material tank, a double-screw conveyor, a vacuum double-paddle dryer, a discharging crusher, a discharging stirring tank and a discharging balance stirring tank which are sequentially connected, wherein a first feeding valve is arranged on a pipeline between the feeding stirring tank and the feeding balance stirring tank, a second feeding valve is arranged on a pipeline between the feeding balance stirring tank and the raw material tank, a first discharging valve is arranged on a pipeline between the discharging stirring tank and the discharging balance stirring tank, a second discharging valve is arranged at an outlet of the discharging balance stirring tank, the liquid ring vacuum pump is communicated with a feeding main pipe and a discharging main pipe, the feeding main pipe is communicated with the top of the feeding balance stirring tank through a feeding balance pipe, a first feeding balance valve is arranged on the feeding main pipe, a feeding balance valve is arranged on the feeding balance main pipe, a first discharging valve is arranged on the feeding balance pipe, a second balance pipe is arranged on the discharge main pipe and the discharging main pipe is communicated with the top of the feeding balance stirring tank through a feeding balance pipe, and a discharging main pipe is communicated with the discharging main pipe through a discharging balance valve, and a discharging balance valve is arranged on the discharging main pipe. Further, dust filters are arranged on the feeding emptying branch pipes and the discharging emptying branch pipes. Further, a differential pressure sensor is arranged at the inlet and the outlet of the dust filter. The utility model has the advantages that the feeding stirring tank, the feeding balance stirring tank, the raw material tank, the discharging stirring tank and the discharging balance stirring tank are all provided with stirring devices, so that bridging of materials in the tank is effectively avoided, smooth flow of the materials is ensured, and the production efficiency is improved. The valve opening and closing sequence control and the vacuum pressure balance design in the system realize stable feeding and discharging processes, reduce material leakage and waste and ensure the safety of the production process. According to the production demand, can be through the rotational speed regulation to ejection of compact breaker, the accurate control material granule size satisfies different technological requirements, promotes product quality. The dust filter and the differential pressure sensor are arranged, so that the effective treatment of dust and the timely cleaning of the dust filter are realized, the working environment is improved, and the service life of equipment is prolonged. Drawings In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following des