CN2344067Y

CN2344067Y - Diffuser for Chinese gutta percha

Info

Publication number: CN2344067Y
Application number: CN 98248372
Authority: CN
Inventors: 严瑞芳; 薛兆弘; 章其忠; 赵志刚; 卢绪奎; 杨道安
Original assignee: Institute of Chemistry CAS
Priority date: 1998-11-12
Filing date: 1998-11-12
Publication date: 1999-10-20
Anticipated expiration: 2008-11-12

Abstract

The utility model relates to a diffuser for Chinese gutta-percha, which is one of key equipment in the art of the gutta-percha diffusion. The utility model is characterized in that a stirring paddle is arranged on a central axis sleeve tube, an inner tube is a liquid entering guide tube which is provided with a sprinkling hole, a combination type passing body shape combined filter net which can be quickly disassembled and replaced is arranged in the barrel body, and the bottom of the barrel body is a dregs draining device which is provided with a side screen plate. The utility model has the advantages of high extraction speed, high active ingredient yield, no filter net clogging in solid-liquid separation process, simple and compact structure, hermetical operation, convenient cleaning and convenient checking. The diffuser is particularly suitable for the gutta-percha diffusion of the gutta percha tree leaf, bark and pericarp.

Description

A kind of gutta-percha digester

The utility model relates to a kind of gutta-percha digester, belong to the liquid-solid extraction technical field, be applicable to the efficient chemical unit equipment that utilizes organic solvent lixiviate gutta-percha from Folium Eucommiae, bark, pericarp, be equally applicable to utilise combustible, explosive, the technology of toxic solvent leaching than useful composition in the thin solid powder.

At present, the gutta-percha extracting technology mainly is that powder raw material and organic solvent are directly dropped in the digester, treat lixiviate finish after again with suspension filtered, with elimination solid dregs wherein, again leaching liquor is concentrated, purifies and gutta-percha.The static extracting method that the more employing of the lixiviate of gutta-percha is in the past used always in industry such as pharmacy, chemical industry, because the gutta-percha molecular weight is bigger, diffusion velocity is slower, thereby it is longer to use this technology extraction time, and leaching rate is lower, and usually stops up filter screen, pipeline in the Separation of Solid and Liquid process, bring very burden to operation, and because a filtration yield is more, thin material passes filter screen easily, brings influence for the degree of purity of final products.

Chinese patent ZL94229224.3 has introduced a kind of dynamic multipotency extractor, and the static state of heating is extracted the Dynamic Extraction that has increased jar interior center heating and paddle on the basis around the single in the past dependence cylindrical shell, and lixiviate speed and lixiviate yield improve.But this equipment still fails to solve effectively the problem of the Separation of Solid and Liquid that exists in the extracting technology.

The utility model purpose is to overcome the prior art shortcoming, utilize the suspension of thin solid material to filter the characteristics that are difficult for stopping up filter screen in the journey in side, a kind of solid-liquid leaching that can adapt to thin material is provided, but have side filter liquid storage, can realize the interior characteristics that circulate, simple and compact for structure, closed-loop operation, leaching velocity and leach the recovery rate height can be produced the novel solid-liquid leaching equipment of higher concentration leachate with less solvent.

The utility model is a kind of gutta-percha digester, and it comprises that mainly top is flat cover or ellipse head, middle cylinder for the strap clamp cover, the cylindrical structural of the slag-draining device of bottom band special setting.Have cold and hot carrier import [23], outlet [17] on the chuck, in cylindrical shell [25] inside combined entire body formula composite filter net tube [10] is arranged, composite filter net tube [10] top is cylindrical shape frame shape structure [24], the bottom is a cone barrel frame shape structure [21], polylith combined filtration web plate [28] is installed in respectively on cylinder frame [24] and the awl tube frame [21] by bolt, is convenient to change fast.Stirring arm [11] is installed in the middle of the equipment, and paddle axle [7] is a sleeve type structure, and the lower end has spray apertures [12], is with feed tube [1] in the paddle axle [7].Paddle axle [7] drives by upper end bevel reduction gear set [2] and rotates, and bevel reduction gear set [2] drives by top motor [4] and arrangements for speed regulation [3].

Below in conjunction with accompanying drawing, structure composition of the present utility model and operation principle are described further.

Fig. 1 is the utility model overall construction drawing;

Fig. 2 is A-A view among Fig. 1 (a removal stirring arm);

Fig. 3 is the local enlarged diagram of combined filtration web plate [28].

As Fig. 1～shown in Figure 3, the gutta-percha digester is by feed tube [1], bevel reduction gear set [2], arrangements for speed regulation [3], motor [4], condensate port [5], top cover [6], paddle pipe spreader [7], visor [8], overfall [9], composite filter net tube [10], paddle [11], spray apertures [12], chuck [13], filter screen bearing [14], side sieve plate [15], slag-drip opening [16], outlet [17], residual cake valve [18], valve plate [19], liquid outlet [20], awl tube frame [21], thermometer mouth [22], import [23], cylinder frame [24], cylindrical shell [25], flushing water inlet [26], charging aperture [27], combined filtration web plate [28] is formed.

The solid material that will leach adds from the charging aperture [27] that top cover [6] is provided with earlier, and top cover is a flat cover, also can be ellipsoidal head.Add a certain amount of water or organic solvent from the feed tube that is positioned at paddle pipe spreader [7] [1], described paddle pipe spreader [7] lower end has feed liquor spray apertures [12], feed tube [1] is enclosed within the paddle pipe spreader [7], paddle pipe spreader [7] is connected on the bevel reduction gear set [2], and feed tube [1] does not rotate with paddle.Start motor [4] and arrangements for speed regulation [3], bevel reduction gear set [2] drives paddle and rotates, and scarifying solid-liquid suspension material has quickened the diffusion of effective ingredient in solvent in the solid material.

In leaching process, solid material is distributed in the combined entire body formula composite filter net tube [10], this composite filter net tube [10] mainly is made up of cylinder frame [24], awl tube frame [21] and combined filtration web plate [28], top is cylinder frame [24], the bottom is awl tube frame [21], and the angle α between cylinder frame [24] and the awl tube frame [21] is 90 °～180 °.Cylinder frame [24] and awl tube frame [21] are connected and fixed by bolt, respectively by bolting on cylindrical shell [25] and filter screen bearing [14], on cylinder frame [24] and the awl tube frame [21] 2～72 blocks of circular-arc combined filtration web plates [28] are installed, combined filtration web plate [28] is individually fixed on cylinder frame [24] and the awl tube frame [21] by bolt.Every block of combined filtration web plate [28] clamps sieve plate [30] by inside and outside two and connects by bolt, filter screen [29] tightly is fixed between the two forms, and the several fineness according to the solid material that is leached of the order of filter screen [29] are determined.This combined entire body formula composite filter net tube [10] is convenient to change fast, has the characteristics of side filter, is beneficial to leaching liquor freely exchanging in cylindrical shell [25].

There is chuck [13] in cylindrical shell [25] outside, the import [23] and the outlet [17] of cold and hot carrier are arranged on the chuck [13], the control of reaction temperature can finish for the material in the cylindrical shell [25] by adding cold and hot carrier transfer energy according to the reading of the thermometer on the thermometer mouth [22].

After lixiviate finishes, open liquid outlet [20] and discharge leaching liquor, liquid outlet [20] tube end slag-drip opening has certain height, discharges from liquid outlet [20] in case be deposited on the outer superfine powder of composite filter net tube [10] on a small quantity.After the leaching liquor emptying, open residual cake valve [18], valve plate [19] moves down, and then solid material is discharged by slag notch [16] under the slow stirring of paddle [11].There is side sieve plate [15] slag notch upper end, and described side sieve plate [15] be columnar structured, and its sieve aperture shape can be circle, square or other is irregularly shaped, and side sieve plate [15] is fixedlyed connected with filter screen bearing [14] with slag notch [16] by welding.During deslagging, moved down, inside and outside the combined entire body formula composite filter net tube [10] of cylindrical shell [25] bottom, then communicated by side sieve plate [15] owing to block the valve plate [19] of side sieve plate [15] originally.Then a small amount of superfine powder of composite filter net tube [10] external sediment can be discharged by slag notch [16] through side sieve plate [15] by a small amount of flushing water that flushing water inlet [26] adds, a leaching process finishes.

As arts demand, can change above-mentioned intermittent operation into semicontinuous process, promptly when adding entry or organic solvent, open overfall [9], then reaching certain density leaching liquor can be discharged by overfall [9] continuously, to realize the rapid diffusion process of solid-liquid leaching.Leaching process finishes, and opens liquid outlet [20] again, drains surplus liquid, and tapping process is ditto described.

The utility model is owing to adopted more easily reality of the structure shown in the above-mentioned principal character The leaching process of existing gutta-percha, but have side filter liquid storage, can in the characteristics of circulation, leach Speed is fast, effective ingredient recovery rate height, and the finished product degree of purity is higher, and device structure is simple, Do not stop up filter screen in the Separation of Solid and Liquid process, closed-loop operation cleans inspection conveniently, and is especially suitable In lixiviate gutta-percha from Folium Eucommiae, bark, pericarp.

Claims

1, a kind of gutta-percha digester, comprise cylindrical shell [25] and paddle [11], it is characterized in that: there is chuck [13] in cylindrical shell [25] outside, the import [23] and the outlet [17] of cold fluid and hot fluid are arranged on the chuck [13], combined entire body formula composite filter net tube [10] is arranged in the cylindrical shell [25], side sieve plate [15], slag-drip opening [16] and residual cake valve [18] are arranged at cylindrical shell [25] bottom, and cylindrical shell [25] has paddle [11] and spray apertures [12] on the center paddle pipe spreader [7] relatively, and feed tube [1] is arranged in the paddle pipe spreader [7].

2, gutta-percha digester according to claim 1 is characterized in that: described combined entire body formula composite filter net tube [10] is formed by cylinder frame [24], awl tube frame [21] with by 2～72 blocks of circular-arc combined filtration web plates [28] that bolt is separately fixed on cylinder frame [24], the awl tube frame [21].

3, gutta-percha digester according to claim 1 is characterized in that: described cylinder frame [24] is connected by bolt with awl tube frame [21], and angle α is 90 °～180 °, respectively by being bolted on cylindrical shell [25] and the filter screen bearing [14].

4, gutta-percha digester according to claim 1 is characterized in that: described combined filtration web plate [28] tightly is fixed on filter screen [29] between the two by bolt by inside and outside two clamping sieve plates [30] to be formed.

5, gutta-percha digester according to claim 1 is characterized in that: described paddle pipe spreader [7] lower end has feed liquor spray apertures [12], and feed tube [1] is enclosed within the paddle pipe spreader [7], and paddle pipe spreader [7] is connected on the bevel reduction gear set [2].

6, gutta-percha digester according to claim 1, it is characterized in that: described side sieve plate [15] is for columnar structured, its sieve aperture shape can be circle, square or other is irregularly shaped, and side sieve plate [15] is fixedlyed connected with filter screen bearing [14] with slag notch [16] by welding.