CN2557311Y

CN2557311Y - Vertical loading-hopper dryer

Info

Publication number: CN2557311Y
Application number: CN 02243804
Authority: CN
Inventors: 谢伟明
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-23
Filing date: 2002-07-23
Publication date: 2003-06-25
Anticipated expiration: 2012-07-23

Abstract

The utility model provides a vertical hopper dryer. A wind guide pipe and a wind dissipation head extended downwards from the wind guide pipe are connected in a material cylinder drying room facing to a hot wind pipe port; the wind dissipation head in butted cone shape is arranged on the central position of the lowest part of the drying room; the wind outlet of the wind dissipation head is in a horizontal plane where wind dissipation holes are uniformly arranged. The wind guide pipe with the diameter less than the hot wind pipe is connected on the internal wall of the material cylinder drying room; a transitional bent pipe gradually widened is arranged between the wind guide pipe and the head dissipation head; the diameter of the bent pipe reaches the most at the connection with the wind dissipation head. The upper cone port of the wind dissipation head is butted with the bent pipe port and the lower cone port just faces to the bottom of the material cylinder drying room; the plane of the wind outlet is a horizontal plate; the wind dissipation head and the material cylinder drying room are concentrically arranged. In this way, the utility model not only leads the plastic grains to be uniformly dried without blockages, but also fully utilizes heat energy. The utility model has wide applicable prospect in the plastic grain drying field.

Description

Vertical Hopper Dryer

Technical field

The utility model relates to a kind of vertical Hopper Dryer, belongs to the plastic grain drying device.

Background technology

Usually plastic grain will be handled through super-dry before being processed to goods putting into extruder, especially under the environment of China's southern high-temperature humidity, more need dry.Now general drying machine as shown in Figure 1.During air process air blast 1, the centrifugal force drive that is run up by air blast enters electrothermal tube 2, in electrothermal tube 2, be drawn into warm-air pipe 3 after the heating, arrive barrel hothouse 4 by air intake screen cloth 8 fast then, in the barrel hothouse, finish drying plastic grain; Discharge by blast pipe 5 at last.But in practical work process, when hot blast stream enters barrel hothouse 4 through screen cloth 8, about two districts be heated inhomogeneous: for example the B district at first directly contacts because of flowing with hot blast, so temperature rise is very fast; The A district is because of flowing mediate contact subsequently with hot blast, so temperature rise is slower.Drying machine works long hours and can cause B district material caking, and the A district does not reach drying effect, causes uneven drying even, the consequence of energy waste.

Simultaneously; plastic grain enters barrel hothouse 4 by blanking port 7; in the blanking process; plastics granule or toner can fall by the air admission hole of air intake screen cloth 8; so that can be deposited in a large number for a long time on the screen cloth of hothouse lower end (C district); air blast is with airborne little dust also can accumulate in the C district in addition, promptly on the upper surface of base 6, thereby causes stopping up the consequence of hothouse air inlet.

Summary of the invention

The purpose of this utility model is to propose a kind of vertical Hopper Dryer, the defective that the uneven drying that this drying function is overcome exist in the prior art is even, energy waste and air inlet stop up; Reach uniform drying, save the kilter that the energy there is no obstruction.

The technical scheme of implementing the utility model above-mentioned purpose and adopting is as described below: this vertical Hopper Dryer is made up of air blast, electrothermal tube, warm-air pipe, barrel hothouse, blast pipe, base, feed opening, wherein connects a guide duct and towards the hot blast mouth of pipe in the barrel hothouse and extends downward diffusing public attention by this guide duct; Diffusing public attention is the docking cone shape and is positioned at hothouse bottommost center position; The air outlet of this cone-shaped diffusing public attention is a horizontal plane, which is provided with equally distributed diffusing wind hole, and its aperture is less than the plastic grain diameter.The diameter of guide duct is less than the diameter of warm-air pipe, and guide duct is connected on the inwall of barrel hothouse; Guide duct reaches maximum to being provided with the transition bend pipe of chap gradually between the public attention of loosing to connecting public attention place bend pipe diameter that looses.The upper cone mouth butt joint bend pipe mouth of the public attention of loosing, the lower cone mouth is over against barrel hothouse bottom; The plane of air outlet is a horizontal web; The diffusing public attention of docking cone shape is provided with the blanking tube hothouse is concentric.

Hot blast is the diffusing wind hole that is evenly distributed on the air outlet of horizontal plane by diffusing public attention to be sent, and air-out area is big, and diffusing public attention is positioned near hothouse bottommost center position, both in conjunction with guarantee air-supply evenly.The above-mentioned hot blast of evenly sending can be done oven dry more fully to plastic grain, so heat energy utilization rate height.The diffusing wind hole of the conical surface on the public attention of loosing, plastic grain enters the barrel hothouse by blanking port, and during blanking, plastic grain can not enter diffusing public attention, thereby has avoided the consequence of stopping up.Because the smooth outer surface of guide duct and diffusing public attention is distinguished in a tubular form and taper, can't retain any plastic grain on it during discharging simultaneously, make that the discharging of hothouse is more clean thoroughly.

In sum, this vertical Hopper Dryer uniform drying, heat energy utilization rate height can not produce clogging yet.Therefore in the dry materials field, its application prospects is arranged when the dry plastics particle particularly.

Description of drawings

Fig. 1 is existing common drying machine schematic diagram.

Fig. 2 is the vertical Hopper Dryer schematic diagram of the utility model.

The specific embodiment

Now the vertical Hopper Dryer of the utility model is further described in conjunction with Fig. 2.

As shown in Figure 2, the utility model is provided with guide duct 18 and diffusing public attention 9.When work, air by electrothermal tube 2 heating becoming hot blast stream, again through guide duct 18 is directly sent into loose public attention 9 along warm-air pipe 3 by air blast 1 back, and the diffusing wind hole that is evenly distributed on the lower plane of hot blast by the public attention 9 of loosing is sent, and airflow direction is shown in arrow among the figure.Public attention 9 air outlets are the plane owing to loose, and air-out area is big; And diffusing public attention 9 is positioned near hothouse 4 bottommost center positions, both combinations, thus guaranteed that the hot blast of sending is very even.Again since the diameter in the wind hole of loosing less than the diameter of plastic grain, this has not only prevented entering of plastic grain, and has improved the speed of hot blast stream.Hot blast stream is dug plastic grain uniformly at a high speed, forms turbulence-like, makes its lower end that can not be deposited on hothouse 4 for a long time, and promptly on the upper surface of base 6, last waste gas is discharged by blast pipe 5; So not only improve drying rate but also improved drying effect, promptly made full use of heat energy.Diffusing wind hole when plastic grain enters barrel hothouse 4 by blanking port 7, can not enter the public attention 9 of loosing, thereby avoid obstruction on the epicone dignity of the public attention 9 of loosing.Be energy savings like this, work also can be more reliable.

Claims

1. vertical Hopper Dryer, this machine is made up of air blast, electrothermal tube, warm-air pipe, barrel hothouse, blast pipe, base, feed opening, it is characterized in that, in the barrel hothouse, connect a guide duct and and extend downward diffusing public attention by this guide duct towards the hot blast mouth of pipe; The public attention of should loosing is cone-shaped and is positioned at hothouse bottommost center position; The air outlet of this cone-shaped diffusing public attention is a horizontal plane, which is provided with equally distributed diffusing wind hole.

2. vertical Hopper Dryer as claimed in claim 1 is characterized in that, the diameter of described guide duct is less than the diameter of warm-air pipe, and guide duct is connected on the inwall of barrel hothouse; Guide duct is to being provided with the transition bend pipe of chap gradually between the public attention of loosing, reach maximum connecting public attention place bend pipe diameter that looses.

3. vertical Hopper Dryer as claimed in claim 1 is characterized in that, described diffusing public attention is the cone-shaped of two butt joints, upper cone mouth butt joint bend pipe mouth, and the lower cone mouth is over against barrel hothouse bottom; The plane of described air outlet is a horizontal web; The diffusing public attention of docking cone shape is provided with the blanking tube hothouse is concentric.

4. vertical Hopper Dryer as claimed in claim 3 is characterized in that, establishes uniform diffusing wind hole on the described air outlet flat plate, and its aperture is less than the plastic grain diameter.