CN2198578Y

CN2198578Y - Internal heating screw blade type vacuum drier

Info

Publication number: CN2198578Y
Application number: CN 93239662
Authority: CN
Inventors: 许海全
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-12-04
Filing date: 1993-12-04
Publication date: 1995-05-24
Anticipated expiration: 2003-12-04

Abstract

The utility model belongs to the drying equipment, which is composed of a cylinder, a stirring shaft, a transmission system and a support, wherein, the cylinder comprises a sandwich layer and a heat-insulating layer; the stirring shaft comprises a spiral heating pipe and spiral doctor blades. The stirring shaft can rotate in the cylinder. The transmission system drives the stirring shaft to positively rotate and reversedly rotate with timing to mix the material by left-right pushing and stirring the material, which also scrapes the material sticking on the wall of the device off. The sandwich layer of the cylinder and the spiral heating pipe on the stirring shaft are heated by steaming during the cylinder is pumped to vacuum state. The material is dried very fast. The equipment can not only increase the drying efficiency and saving energy, but also the phenomenon of material sticking on the wall during drying process is effectively prevented to occur.

Description

Internal heating screw blade type vacuum drier

The utility model belongs to the drying equipment of dried material.

At present, known drying equipment probably can be divided into two classes: a class has dynamically and non-dynamic type for adopting the direct and material transmission of heat by contact class of hot blast; Another kind of for adopting interlayer heating indirect heat transfer class, have dynamically and non-dynamic type.First kind drying equipment is too big owing to consuming energy, the high and only suitable low-down loose type material of dry water content of labour intensity.The second class drying equipment can the very high material of dry water content but since do not have scraping blade and wall spacing very little stir curette, and evenly rapid draing.

The purpose of this utility model provides a kind of drying machine, and it can not only the very high material of aqueous fast drying amount, and can also effectively prevent the sticking wall in the dry run and cause uneven this phenomenon of dry materials.

The purpose of this utility model is achieved in that complete machine is a horizontal type structure, by the cylindrical shell of strap clamp layer, heat-insulation layer; The band helical heating pipe, the shaft of spiral scraping blade; Composition such as transmission system and support (seeing accompanying drawing 1).

The container part of the utility model splendid attire material is made up of the cylindrical shell of strap clamp layer, heat-insulation layer, on the shaft in the container combination have helical heating pipe and with the spiral scraping blade of helical heating pipe uniform pitch.Container part plays charge and insulation effect, and the helical heating pipe on the shaft plays heating and supporting role, and the spiral scraping blade outer and the gap between the chamber wall of making up on the heating tube are very little, but can not contact wall.Shaft and cylindrical shell coaxial line, and can rotate within it, cylindrical shell is motionless.

Accompanying drawing and embodiment explanation:

Fig. 1 is the utility model embodiment.

Fig. 2 is Fig. 1 shaft partial view.

With reference to accompanying drawing: on horizontal cylinder 12, steam inlet tube 8 is arranged, discharging opening 10, vacuum interface 11, charging aperture 13, supporting base 5.In cylinder inside: helical heating pipe 4 and spiral scraping blade 14 are combined in one and are connected on the stirring hollow spindle 9.There is the supporting base 2 of main shaft at two ends outside cylinder, steam seal system 1, the transmission system 15 of stirring main shaft.Whole cylindrical shell is supported on the support 7 by two supporting bases 5 of its underpart.

When dry, start transmission system 15 earlier, allow it drive stirring hollow spindle 9 and clockwise rotate.Material adds from charge door 13, builds seal cover when adding total measurement (volume) 2/3 material.Feeding steam then heats.Start vacuum system and be the vacuum shape to taking out in the container, reduce the boiling point of water like this, the water evaporates in the material is water vapour and is in time taken away.

Shaft by electrical equipment control just can do regularly, de-rotation, constantly stir material, bring in constant renewal in the dry materials surface; And the material that sticks on the chamber wall can be scraped even drying by scraping blade 14 again.

Dry materials finishes, and steam off and vacuum system are opened discharging opening 10, and the shaft of rotation is done the spiral pusher effect, and material is shirked totally.

Claims

1, a kind of interior hot spiral Wiper blade type vacuum drier, cylindrical shell by strap clamp layer, heat-insulation layer, the shaft of band helical heating pipe, spiral scraping blade, turnover steam seal system, transmission system and support are formed, it is characterized in that: shaft in cylindrical shell and with its coaxial line, shaft is provided with spiral scraping blade and helical heating pipe, spiral scraping blade and helical heating pipe are combined in one.

2, according to the described device of claim 1, it is characterized in that the outer of shaft scraping blade and the gap between the cylinder container wall are very little, shaft rotates flexibly in cylindrical shell transfixion and its.