阅读说明：本技术 一种pvc生产用流化床干燥器 (Fluidized bed dryer for PVC production ) 是由 高旭 王明建 徐�明 于 2019-10-08 设计创作，主要内容包括：本发明公开了一种PVC生产用流化床干燥器,所述干燥器包括机壳、流化床、振动电机组件、进气管、出气管、进料口、出料口、进料导板；所述机壳的内部设有流化床；所述流化床的上方一侧设有进料口,所述流化床的下方另一侧设有出料口,所述进料口、出料口均相通连接机壳；所述流化床的下方设有进气管；所述进气管与机壳相通连接；所述机壳内设有振动电机组件,所述振动电机组件位于流化床下方；所述机壳的顶部设有出气管。本发明干燥器进料均匀,且初期就有良好的温度；合理控制流化床进料量、热风风量、料层高度及流化床温度；避免流化床波动时分布板死角及加热板挂料混入系统中。流化床整体的温度平稳,使得PVC不易发生形变,使得PVC质量好。(The invention discloses a fluidized bed dryer for PVC production, which comprises a shell, a fluidized bed, a vibration motor assembly, an air inlet pipe, an air outlet pipe, a feeding hole, a discharging hole and a feeding guide plate, wherein the shell is provided with a plurality of holes; a fluidized bed is arranged inside the shell; a feed inlet is formed in one side above the fluidized bed, a discharge outlet is formed in the other side below the fluidized bed, and the feed inlet and the discharge outlet are communicated with the machine shell; an air inlet pipe is arranged below the fluidized bed; the air inlet pipe is communicated and connected with the shell; a vibration motor assembly is arranged in the shell and is positioned below the fluidized bed; and the top of the shell is provided with an air outlet pipe. The dryer has uniform feeding and good temperature at the initial stage; reasonably controlling the feeding amount of the fluidized bed, the hot air quantity, the material layer height and the temperature of the fluidized bed; avoiding the dead angle of the distribution plate and the hanging material of the heating plate from mixing into the system when the fluidized bed fluctuates. The integral temperature of the fluidized bed is stable, so that PVC is not easy to deform, and the PVC quality is good.)

1. The utility model provides a PVC production is with fluidized bed dryer which characterized in that: the dryer comprises a machine shell, a fluidized bed, a vibration motor assembly, an air inlet pipe, an air outlet pipe, a feed inlet, a discharge outlet and a feed guide plate; a fluidized bed is arranged inside the shell; a feed inlet is formed in one side above the fluidized bed, a discharge outlet is formed in the other side below the fluidized bed, and the feed inlet and the discharge outlet are communicated with the machine shell; an air inlet pipe is arranged below the fluidized bed; the air inlet pipe is communicated and connected with the shell; a vibration motor assembly is arranged in the shell and is positioned below the fluidized bed; and the top of the shell is provided with an air outlet pipe.

2. The PVC production fluidized bed dryer of claim 1, wherein: the discharge port comprises an inner discharge port and an outer discharge port, the top of the inner discharge port is fixedly connected to the fluidized bed, and the outer side of the inner discharge port is sleeved with the outer feed port; the outer material outlet penetrates through the shell.

3. The PVC production fluidized bed dryer of claim 1, wherein: and a grid baffle is arranged in the air outlet pipe.

4. The PVC production fluidized bed dryer of claim 1, wherein: the air inlet pipe is connected with the hot air purification assembly; the air inlet pipe hot air purification assembly comprises a clean air inlet pump and a heater; the air inlet pipe is connected with a clean air inlet pump; and an annular heater is arranged on the outer side of the air inlet pipe.

5. The PVC production fluidized bed dryer of claim 4, wherein: the heater is a resistance heater.

6. The PVC production fluidized bed dryer of claim 1, wherein: a rapping assembly is arranged on one side of the feeding guide plate and comprises a cylinder and a telescopic rod, and the cylinder is arranged on the wall of the shell; the cylinder shakes the feeding guide plate through the telescopic rod.

Technical Field

The invention relates to the technical field of PVC production, in particular to a fluidized bed dryer for PVC production.

Background

In recent years, the domestic PVC capacity is rapidly increased, and the situation of over-supply is presented, so that the chlor-alkali industry faces severe market competition pressure. Enterprises want to further improve the competitiveness of PVC products, and the quality of PVC resin not only meets the national standard requirements, but also meets the processing requirements of downstream customers as far as possible.

The PVC resin is a heat-sensitive resin, and when the PVC resin is subjected to thermal degradation at a higher temperature, a shorter time or a lower temperature and a longer time, more impurities are generated; the PVC material entering the dryer is accumulated at the dead angle of the air distribution plate, or the hanging of the hot water heating plate is serious, so that the quality of PVC is poor. Therefore, the main current problems are to reduce the impurity rate and to improve the influence on the quality of PVC.

Disclosure of Invention

In order to solve the problems, the invention discloses a fluidized bed dryer for PVC production.

In order to achieve the above purpose, the invention provides the following technical scheme:

a fluidized bed dryer for PVC production comprises a shell, a fluidized bed, a vibration motor assembly, an air inlet pipe, an air outlet pipe, a feed inlet, a discharge outlet and a feed guide plate; a fluidized bed is arranged inside the shell; a feed inlet is formed in one side above the fluidized bed, a discharge outlet is formed in the other side below the fluidized bed, and the feed inlet and the discharge outlet are communicated with the machine shell; an air inlet pipe is arranged below the fluidized bed; the air inlet pipe is communicated and connected with the shell; a vibration motor assembly is arranged in the shell and is positioned below the fluidized bed; and the top of the shell is provided with an air outlet pipe.

Further, the discharge port comprises an inner discharge port and an outer discharge port, the top of the inner discharge port is fixedly connected to the fluidized bed, and the outer side of the inner discharge port is sleeved with the outer feed port; the outer material outlet penetrates through the shell.

Furthermore, a grid baffle is arranged in the air outlet pipe. The arrangement of the grid baffle plate prevents the materials from being discharged from the air outlet pipe.

Further, the air inlet pipe is connected with a hot air purification assembly; the air inlet pipe hot air purification assembly comprises a clean air inlet pump and a heater; the air inlet pipe is connected with a clean air inlet pump; and an annular heater is arranged on the outer side of the air inlet pipe.

Further, the heater is a resistance heater.

Furthermore, one side of the feeding guide plate is provided with a rapping assembly, the rapping assembly comprises a cylinder and a telescopic rod, and the cylinder is arranged on the shell wall of the shell; the cylinder shakes the feeding guide plate through the telescopic rod. The rapping component effectively raps the guide plate, so that the material is prevented from staying on the guide plate.

The invention has the following beneficial effects: the hot air quantity and the temperature of a section of the dryer are ensured, and the entering PVC material can be well fluidized; the dryer has uniform feeding and good temperature at the initial stage; reasonably controlling the feeding amount of the fluidized bed, the hot air quantity, the material layer height and the temperature of the fluidized bed; avoiding the dead angle of the distribution plate and the hanging material of the heating plate from mixing into the system when the fluidized bed fluctuates. The integral temperature of the fluidized bed is stable, so that PVC is not easy to deform, and the PVC quality is good.

Drawings

FIG. 1 is a schematic structural view of the present invention;

wherein: the device comprises a machine shell 1, a fluidized bed 2, a vibration motor component 3, an air inlet pipe 4, an air outlet pipe 5, a feeding hole 6, a discharging hole 7, an inner discharging hole 71, an outer discharging hole 72, a feeding guide plate 8, a grid baffle plate 9, a hot air purification component 10, a rapping component 11, a cylinder 111 and an expansion rod 112.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific embodiments, which are to be understood as merely illustrative of the invention and not as limiting the scope of the invention.