CN201322520Y

CN201322520Y - Compound vacuum drying apparatus

Info

Publication number: CN201322520Y
Application number: CNU2008201712997U
Authority: CN
Inventors: 吴红平; 方银军; 邹欢金; 胡剑品; 秦志荣
Original assignee: Jiaxing Zanyu Technology Co Ltd
Current assignee: Jiaxing Zanyu Technology Co Ltd
Priority date: 2008-12-28
Filing date: 2008-12-28
Publication date: 2009-10-07
Anticipated expiration: 2018-12-28

Abstract

A compound vacuum drying apparatus belongs to the technical field of drying equipment of heat sensitivity materials, which mainly comprises a vacuum tube type spray-drying portion (A) which comprises a vacuum drying tube (6) with a steam inlet (5) and a condensed water outlet (4) and a material distributing cavity (2) which is arranged on the upper portion of the vacuum drying tube (6) and is provided with a feed inlet (1) and the like, a receiving tank (B) whose inner portion is provided with an extraction steam pipe (7) with a baffle plate (8) and a vortex plate (9), and a vacuum scratch board drying portion (C) which comprises an inner tube (12) whose bottom is provided with a discharge hole (17), a jacket (13) which is arranged on the periphery of the inner tube (12) and is provided with a steam inlet (11) and a condensed water outlet (10), a scraper board main shaft (15) which is arranged in the inner tube (12) and is provided with a scratch board (14), a speed-regulating motor (16) which is arranged at the bottom of the inner tube (12) and is connected with the scratch board main shaft (15) and the like. The compound vacuum drying apparatus has reasonable and compact integral structure design, which can effectively improve drying efficiency and product quality after drying.

Description

A kind of combined type vacuum drier

Technical field

The utility model relates to a kind of combined type vacuum drier, belongs to the manufacturing technology field of heat sensitive material drying equipment.

Background technology

The characteristics of heat sensitive material are to surpass certain temperature, material is easy to generate phenomenons such as variable color, decomposition, fusing, distillation, the character of product is changed, such as surfactant dodecyl sodium sulfate, methyl sodiosul foaliphatate, most of natural or compound essence spices, medicine intermediate etc., the drying condition of these materials is very harsh, must strict control baking temperature, when temperature is too high, easily to decompose, color and luster deepens, temperature is crossed and lowly then can not be reached drying effect preferably.

Existing drier mainly has the following disadvantages: the one, and the equipment more complicated is taken up an area of greatly, invests greatlyyer, and arid cycle is generally longer, and the tail gas dust pollution is more serious; The 2nd, adopt hot-air as drying medium mostly, when carrying out drying with the hot-air below 160 ℃, required drying equipment volume is bigger, and dry heat efficient is low, the heat consume is big; The 3rd, residence time of material is longer, and to the drying of heat sensitive material, the drying tower wall easily forms ramming material and material is overheated, makes that like this workload of cleaning is very big, and material loss is big, also produces a large amount of washes simultaneously, easily causes environmental pollution; The 4th, as adopting the dry heat sensitive material of electron tubes type,,, need long vacuum drying pipe for reaching drying effect preferably although can guarantee under lower operating temperature, to carry out, the easy blocking pipe of material influences production efficiency.

Summary of the invention

The purpose of this utility model provides a kind of reasonable in design, and compact overall structure can effectively improve the combined type vacuum drier of drying efficiency and dried product quality.

The utility model is a kind of combined type vacuum drier, comprise electron tubes type spray-drying part, accept jar, vacuum scraper plate drying nest, it is characterized in that the vacuum drying pipe of described electron tubes type spray-drying part by carrying vapour import and condensation-water drain, place the sub-material chamber of vacuum drying pipe top band charging aperture, place in the sub-material chamber formations such as nozzle that are connected with corresponding vacuum drying pipe; Described vacuum scraper plate drying nest places the chuck of peripheral carrying vapour import of inner core and condensation-water drain by the inner core of bottom band discharging opening, places the scraper plate main shaft of belt scraping plate in the inner core, the formations such as buncher that tube bottom links to each other with the scraper plate main shaft in placing; Described upper and lower of accepting jar is connected with vacuum drying pipe bottom and inner core top respectively.

The quantity of described vacuum drying pipe can be 5～8 settings, and the internal diameter of every vacuum drying pipe is 10～50mm, and length is 1000～3000mm.

The described exhaust tube that also can be provided with the band baffle plate on the jar of accepting, the external vavuum pump of exhaust tube and a blow-down pipe are used to vacuumize, and the effect of baffle plate is to prevent that material is drawn out of.

The described jar upper end of inside strake main shaft of accepting also can be provided with the eddy flow plate, can utilize centrifugal action that material is got rid of to accepting tank skin and enter inner core along the Inner barrel.

Spacing between described scraper plate and the inner core inwall is 1～10mm; Be preferably 2～5mm.

Described adjacent scraper plate can be arranged in a crossed manner at interval, and the spacing between the adjacent scraper plate on the same plane and the length of scraper plate are isometric, all can be scraped in whole inner core to guarantee material.

The utility model compared with prior art has following outstanding advantage and good effect:

1, combine the dry and vacuum scraper plate drying advantage separately of electron tubes type, integrate both, compact overall structure, reasonable in design, convenient operation and control, rate of drying is fast, is not only applicable to the drying of common material, is particularly useful for the drying of heat sensitive material.

2, directly vacuum drying pipe and inner core are heated by vapor heat exchanger, thereby changed the hot-air drying process that most of drying process adopted in the past, improved the dry thermal efficiency and shortened the time of staying of material when high temperature evaporation effectively.

3, dry run is carried out under vacuum, operating temperature is low, material is difficult for decomposing, use short vacuum drying pipe simultaneously, heated time is short, is difficult for plugging, adds further and carry out redrying in vacuum scraper plate drying nest, the drying efficiency height, the product water content is low and greatly reduced dust pollution and product loss.

4, the utility model is applicable to the drying of surfactant dodecyl sodium sulfate, methyl sodiosul foaliphatate, most of natural or heat sensitive materials such as compound essence spices, medicine intermediate, adopt the dried product of the utility model to have good homogeneous degree, flowability and dissolubility, the product purity height, quality is good.

Description of drawings

Accompanying drawing is an overall structure schematic diagram of the present utility model.

Among the figure, A is an electron tubes type spray-drying part, and B is for accepting jar, and C is a vacuum scraper plate drying nest; 1 is charging aperture, and 2 is the sub-material chamber, and 3 is nozzle, and 4,10 is condensation-water drain, and 5,11 is steam inlet, 6 are the vacuum drying pipe, and 7 is exhaust tube, and 8 is baffle plate, and 9 is the eddy flow plate, and 12 is inner core, 13 is chuck, and 14 is scraper plate, and 15 is the scraper plate main shaft, and 16 is buncher, and 17 is discharging opening.

The specific embodiment

The utility model mainly comprises electron tubes type spray-drying part A, accepts a jar B, vacuum scraper plate drying nest C, electron tubes type spray-drying part A is by the vacuum drying pipe 6 of carrying vapour import 5 and condensation-water drain 4, place the sub-material chamber 2 of vacuum drying pipe 6 top band charging apertures 1, nozzle 3 formations such as grade that place sub-material chamber 2 interior and corresponding vacuum drying pipes 6 to be connected; Vacuum scraper plate drying nest C is by the inner core 12 of bottom band discharging opening 17, place the chuck 13 of inner core 12 peripheral carrying vapour imports 11 and condensation-water drain 10, place the scraper plate main shaft 15 of belt scraping plate 14 in the inner core 12, buncher 16 formations such as grade that place inner core 12 bottoms to link to each other with scraper plate main shaft 15; The upper and lower of accepting jar B is connected with vacuum drying pipe 6 bottoms and inner core 12 tops respectively, accepts the exhaust tube 7 that jar B is provided with band baffle plate 8, accepts jar upper end of B inside strake main shaft 15 and is provided with eddy flow plate 9.The quantity of vacuum drying pipe 6 is 5～8 settings, and the internal diameter of every vacuum drying pipe 6 is 10～50mm, and length is 1000～3000mm.

Adjacent scraper plate

14a, 14b, 14c, 14d are that 180 ° of intervals are arranged in a crossed manner, and adjacent scraper plate 14a, the 14c on the same plane or the length alpha of spacing α between 14b, the 14d and scraper plate 14 are isometric.

During use, with behind the material metering of certain water content or organic solvent content by the preheater preheating, enter sub-material chamber 2 from charging aperture 1, material is sent in the vacuum drying pipe 6 of steam with nozzle 3, behind preliminarily dried, enter and accept a jar B, material gets rid of to accepting jar B inwall through eddy flow plate 9 and enters vacuum scraper plate drying nest C along the Inner barrel, rotate under buncher 16 drives by the scraper plate main shaft 15 that scraper plate 14 is housed in the inner core 12, to carry out redrying through the material of preliminarily dried, send by discharging opening 17 at last.The utility model is through practical application, can be with water content greater than 20% or contain organic quantity of solvent and reach water content after drying less than 2% or contain organic quantity of solvent less than 1% greater than 10% material.

Claims

1, a kind of combined type vacuum drier, comprise electron tubes type spray-drying part (A), accept jar (B), vacuum scraper plate drying nest (C), it is characterized in that the vacuum drying pipe (6) of described electron tubes type spray-drying part (A) by carrying vapour import (5) and condensation-water drain (4), place the sub-material chamber (2) of vacuum drying pipe (6) top band charging aperture (1), the nozzle formations such as (3) that places the interior and corresponding vacuum drying pipe (6) in sub-material chamber (2) to be connected; Described vacuum scraper plate drying nest (C) is by the inner core (12) of bottom band discharging opening (17), place the chuck (13) of peripheral carrying vapour import of inner core (12) (11) and condensation-water drain (10), place the scraper plate main shaft (15) of the interior belt scraping plate of inner core (12) (14), the buncher formations such as (16) that places inner core (12) bottom to link to each other with scraper plate main shaft (15); Described upper and lower of accepting jar (B) is connected with vacuum drying pipe (6) bottom and inner core (12) top respectively.

2, by the described a kind of combined type vacuum drier of claim 1, the quantity that it is characterized in that described vacuum drying pipe (6) is 5～8 settings, and the internal diameter of every vacuum drying pipe (6) is 10～50mm, and length is 1000～3000mm.

3,, it is characterized in that the described exhaust tube (7) that also is provided with band baffle plate (8) on jar (B) of accepting by the described a kind of combined type vacuum drier of claim 1.

4,, it is characterized in that the described jar upper end of (B) inside strake main shaft (15) of accepting also is provided with eddy flow plate (9) by claim 1 or 3 described a kind of combined type vacuum driers.

5, by the described a kind of combined type vacuum drier of claim 1, it is characterized in that the spacing between described scraper plate (14) and inner core (12) inwall is 1～10mm; Be preferably 2～5mm.

6, by the described a kind of combined type vacuum drier of claim 1, it is characterized in that described adjacent scraper plate (14a, 14b, 14c, 14d) for arranged in a crossed manner at interval, the spacing between the adjacent scraper plate on the same plane (14a, 14c) and the length of scraper plate (14) are isometric.