CN2464414Y

CN2464414Y - Miniature extractor

Info

Publication number: CN2464414Y
Application number: CN 01201536
Authority: CN
Inventors: 魏士良
Original assignee: Fourth Res & Design Inst Of Nu
Current assignee: Beijing nuclear four Tatsu Engineering Consulting Co., Ltd.
Priority date: 2001-01-18
Filing date: 2001-01-18
Publication date: 2001-12-12
Anticipated expiration: 2011-01-18

Abstract

The utility model relates to a micro mixing clarifying extracting device used in a multi-stage counter-current liquid-liquid extracting process. Each stage is composed of a mixing chamber and a clarifying chamber. The clarifying chambers of all stages are provided with heavy phase weirs for controlling interface heights and dispersoid baffle plates for preventing dispersoid going over the heavy phase weirs. Diaphragm plates between the mixing chambers and the clarifying chambers of all stages are respectively provided with a vertical slotted hole. U-shaped channels through which heavy phase liquid passes are arranged between the mixing chambers and the clarifying chambers of two adjacent stages. The device has the advantages of simple structure, stable operation and easy operation.

Description

Miniature extraction equipment

The utility model relates to the solvent extraction technology field, is specifically related to a kind of miniature mixing clarification extraction equipment, be applicable to two not miscible or liquid phases that two parts are miscible by direct contact to realize the multi-stage countercurrent liquid-liquid extraction technical process of mass transfer.

Extraction process is studied solution to be processed, its component is all very complicated usually, and the distribution coefficient of each component interacts again usually, the behavior of some microcomponents needs again through just showing after the multistage counter current extracting and enriching in addition, therefore distributes the reality that often can not reflect multistage counter current extraction with feed liquid with the different balances that contact or contact with the solution of variable concentrations gained of comparing with organic facies simply.Must carry out technical study by the multistage counter current extraction process that separatory funnel is criticized formula simulation continued operation for this reason.The shortcoming of separatory funnel simulation is: troublesome poeration, progression are very required great effort time-consuming for a long time, go wrong easily, especially are not suitable for the extraction process research of the high radioactivity material that is harmful to health; The consumption of two-phase can not be very little, otherwise the relative quantity of " separatory loss " too senior general make experimental result that bigger deviation take place; Can not control decentralized, when emulsification takes place in equivalent many that mutually continuously easily, will be because of can not the little formation continuous phase mutually of the amount of making and operation can't be carried out, or the like.Therefore the development of the miniature mixer-settler extractor of multistage counter current of continued operation is subjected to general attention.Because the research of high radioactivity extraction process is urgent especially for the demand of miniature mixer-settler extractor, therefore the fifties is to early sixties, the units concerned of main nuclear power have proposed many different design form (Treybal, R.E, LiquidExtraction, 2nd, pp374-377, McGraw-Hill, 1963).But not good because of performance, do not accepted by the technical study personnel.CRODA mixer-settler extractor (Ritcey, G.M etc., " solvent extraction---principle and the application in hydrometallurgical processes ", pp13～15, Atomic Energy Press, Beijing, 1985; Li Zhou etc., " liquid-liquid extraction process and equipment ", pp176～177, Atomic Energy Press, Beijing, 1991) and the miniature mixer-settler extractor of Commissariat A L'Energie Atomique (Bathtlie, A, British patent 1257866,1971) be considered to design form preferably, but they all exist structure more complicated, interfacial level at different levels and need regulate that a liquid phase can not circulate in troublesome poeration and the level, mix to compare and do not equal to flow than being suitable for stream than too big or too little shortcomings such as extraction process.

The purpose of this utility model is to provide that a kind of structure is comparatively simple, operation is more stable and processing ease, miniature multi-stage countercurrent applied widely mix and clarify extraction equipment.

The purpose of this utility model is achieved in that miniature mixing clarification extraction equipment, comprise a rectangular vessel with four outer walls, internal tank is divided into several less rectangle parts by some vertical vertical clapboards, each less rectangle part is divided into mixing chamber by vertical diaphragm plate again and thereby the clarifying chamber constitutes an extracting stage, the mixing chamber of each extracting stage is arranged in the clarifying chamber of adjacent extracting stage and adjoins mutually, clarifying chambers at different levels are provided with and are used to control the heavy phase weir of interfacial level and be used to stop dispersion to cross the dispersion baffle plate of heavy phase weir, heavy phase weir and dispersion baffle plate and midfeather constitute the heavy phase liquid reducing chamber, this liquid reducing chamber passes base plate and extends certain distance downwards, the heavy phase stalk that the lower end of liquid reducing chamber is guided the impeller below into by heavy phase in a conduit and the mixing chamber connects and composes a heavy phase U-shaped passage, have a vertical slotted hole on the diaphragm plate between mixing chambers at different levels and the clarifying chamber, leave high-order breach respectively on left wallboard and each midfeather.

Miniature mixing clarification extraction equipment of the present utility model is simple in structure, stable, mix compare basically with two-phase flow ratio irrelevant and can automatic stabilisation about 1: 1; Interfacial level is stable, and is irrelevant with two-phase feed rate and density, need not to regulate; When stopping charging or two-phase mutually and stopping charging simultaneously and continue operation, interfacial levels at different levels are compared substantially with mixing and are remained unchanged when arbitrary; Can control decentralized by the water amount of filling groove; In the time need not controlling decentralized, this miniature extraction equipment is allowed frequent start-stop.

The utility model has 5 width of cloth accompanying drawings:

Fig. 1 is the structural representation of miniature mixing clarification extraction equipment.

Fig. 2 is that the A-A of Fig. 1 is to cutaway view.

Fig. 3 is that the B-B of Fig. 1 is to cutaway view.

Fig. 4 is second kind of embodiment structural representation that heavy phase weir blocks.

Fig. 5 is the third embodiment structural representation that heavy phase weir blocks.

Below in conjunction with accompanying drawing specific embodiments of the present utility model is described in further detail.

Referring to Fig. 1, embodiment is a miniature extraction equipment of level Four (extraction progression of the present utility model is not limited to level Four).This device constitutes a rectangular vessel by base plate 1, left wallboard 2, right wallboard 3, front panel 4 and squab panel 5, this internal tank is divided into four less rectangle parts by midfeather 6,7,8, constitutes No1, No2, four extracting stages of No3, No4 thereby each rectangle part is divided into mixing chamber M1, M2, M3, M4 and the S1 of clarifying chamber, the S2, S3, the S4 that alternately arrange by diaphragm plate 9 respectively again.A vertical rectangle slotted hole 16 is arranged on the diaphragm plate 9, and this is to mix mouth mutually, its position deviation diaphragm plate center line and common left hand edge or the right edge that is taken at diaphragm plate easily.

The interfacial level of clarifying chambers at different levels is by being controlled by the light heavy phase weir in mutually of being submerged in of intersecting that certain angle or mutually

perpendicular weir plate

10,11 constitute.For preventing that dispersion from crossing heavy phase weir in a large number, this heavy phase weir is blocked with the lateral dispersion body baffle plate 12 that is lower than the light phase Free Surface in clarifying chamber; Second kind of embodiment that heavy phase weir blocks as shown in Figure 4, the lateral dispersion body baffle plate 12 that is lower than light phase Free Surface is connected with the vertical with it vertical dispersion baffle plate 22 of another piece again, and the other end of this vertical dispersion baffle plate 22 and container outer wall keep a little distance; The third scheme that heavy phase weir blocks as shown in Figure 5, the lateral dispersion body baffle plate 12 that is lower than light phase Free Surface is connected with the vertical with it vertical dispersion baffle plate 23 of another piece again, the other end of this vertical dispersion baffle plate 23 is connected with container outer wall.

Heavy phase weir

10,11 and dispersion baffle plate 12 and midfeather 6 or 7 or 8 constitute the liquid reducing chamber 13 of heavy phase, and this liquid reducing chamber 13 passes base plate 1 and extends certain distance downwards; Thereby the lower end of this liquid reducing chamber 13 couples together the U-shape passage that constitutes a heavy phase by a conduit 14 and the heavy phase stalk 15 of heavy phase being guided into impeller 19 belows.

The liquid reducing chamber lower end of heavy out level (present embodiment is No4) is connected with an ozzle 17.On left side wallboard 2 and the midfeather 6,7,8 a high-order breach 18 is arranged.Have one gently to be subjected to liquid bucket 20 mutually near the high-order breach of left clapboard 2, this can be connected with an ozzle 21 at sidewall or base plate by the liquid bucket.

The entire work process of this device is performed such: heavy phase is fed mixing chamber M1, (flow preface at this and from next stage by heavy phase, down together) S2 of clarifying chamber fully mixes under the light effect at agitator that the high-order breach 18 on the midfeather 6 enters, the mixing that forms enters the S1 of clarifying chamber by the vertical slotted hole 16 on the diaphragm plate 9, mix under the effect of gravity, be separated into heavy phase with gently mutually, gently go into gently to be subjected to mutually liquid bucket 20, then via ozzle 21 bleeders by high-order breach 18 overflows on the left wallboard 2; Heavy phase is then gone into liquid reducing chamber 13 via the overflow that blows slowly of the angle of cut place of

heavy phase weir

10,11, and flows into next stage mixing chamber M2 by the heavy phase U-shape passage that is made of liquid reducing chamber 13, conduit 14 and stalk 15.Flow into the heavy phase of mixing chamber M2, and under the light effect that the high-order breach 18 on the midfeather 7 enters, fully mix at agitator from the S3 of clarifying chamber ..., and the like.Gently final stage (present embodiment is the 4th grade) the mixing chamber M4 from device feeds, herein with from the S3 of upper level clarifying chamber via liquid reducing chamber 13, conduit 14, the heavy phase that the U-shape passage that constitutes with stalk 15 enters is fully mixed, the mixing that forms enters the S4 of clarifying chamber by the vertical slotted hole 16 on the diaphragm plate 9, mix under the effect of gravity, be separated into heavy phase with gently mutually, gently go into upper level mixing chamber M3 by high-order breach 18 overflows on the midfeather 8, heavy phase is then via heavy phase weir 10, liquid reducing chamber 13 is gone in the overflow that blows slowly of 11 angle of cut place, and ozzle 17 bleeders by being connected with liquid reducing chamber 13.

Claims

1. extraction equipment is clarified in a miniature mixing, comprise a rectangular vessel with four outer walls, internal tank is by some vertical vertical clapboards (6,7,8) be divided into several less rectangle parts, each less rectangle part is divided into mixing chamber (M1 by vertical diaphragm plate (9) again, M2, M3, M4) and (S1 of clarifying chamber, S2, S2, S4) thus constitute an extracting stage, the mixing chamber of each extracting stage is arranged in the clarifying chamber of adjacent extracting stage and adjoins mutually, clarifying chambers at different levels are provided with and are used to control the heavy phase weir of interfacial level and be used to stop dispersion to cross the dispersion baffle plate (12) of heavy phase weir, heavy phase weir and dispersion baffle plate (12) and midfeather (6,7,8) constitute heavy phase liquid reducing chamber (13), this liquid reducing chamber passes base plate and extends certain distance downwards, it is characterized in that: the heavy phase stalk (15) that the lower end of liquid reducing chamber (13) is guided impeller (19) below into by heavy phase in a conduit (14) and the mixing chamber connects and composes a heavy phase U-shaped passage, has a vertical slotted hole (16) on the diaphragm plate between mixing chambers at different levels and the clarifying chamber (9), left wallboard (2) and each midfeather (6,7,8) leave high-order breach (18) on respectively.

2. miniature mixing clarification extraction equipment as claimed in claim 1, it is characterized in that: the liquid reducing chamber of heavy out level clarifying chamber (S4) is connected with an ozzle (17), be provided with one near the high-order breach (18) of left side wallboard (2) and gently be subjected to liquid bucket (20) mutually, this can be connected with an ozzle (21) at sidewall or base plate by the liquid bucket.

3. miniature mixing clarification extraction equipment as claimed in claim 1 or 2, it is characterized in that: the described heavy phase weir that is used to control interfacial level is made of two orthogonal or angled weir plates (10,11), one piece weir plate (11) is connected with a horizontal dispersion baffle plate (12), and another piece weir plate (10) is connected with midfeather (6,7,8) between extracting stage.

4. miniature mixing clarification extraction equipment as claimed in claim 3, it is characterized in that: described lateral dispersion body baffle plate (12) is connected with the vertical with it vertical dispersion baffle plate (22) of another piece again, and the other end of this vertical dispersion baffle plate (22) and container outer wall keep a little distance.

5. miniature mixing clarification extraction equipment as claimed in claim 3, it is characterized in that: described lateral dispersion body baffle plate (12) is connected with the vertical with it vertical dispersion baffle plate (23) of another piece again, and the other end of this vertical dispersion baffle plate is connected with container outer wall.