CN203451302U

CN203451302U - Wastewater treatment device in preparation of rare earth

Info

Publication number: CN203451302U
Application number: CN201320557092.4U
Authority: CN
Inventors: 钱建龙; 查国平
Original assignee: Aluminum Rare Earth (changshu) Co Ltd
Current assignee: Aluminum Rare Earth (changshu) Co Ltd
Priority date: 2013-09-06
Filing date: 2013-09-06
Publication date: 2014-02-26
Anticipated expiration: 2023-09-06

Abstract

The utility model provides a wastewater treatment device in the preparation of rare earth and belongs to the technical field of environment protection facilities. The wastewater treatment device comprises a front-grade setting tank and a rear-grade setting tank, wherein the upper part of the front-grade setting tank is connected with a raffinate acid-containing wastewater leading-in pipe and the lower part of the front-grade setting tank is connected with one end of a transition pipe; the other end of the transition pipe is connected with the upper part of the rear-grade setting tank; the upper part of an oil contamination collection barrel is connected with an oil contamination collection pipe; an acid-containing wastewater leading-in connector is arranged at the top of an acid-containing wastewater storage tank; a liquid pumping mechanism is connected with the lower part of a tank wall of the rear-grade setting tank; an acid-containing water flow stabilizing mechanism is connected between an acid-containing water leading-out connector and an acid-containing water subsequent oil removing mechanism; an oil-water separator is connected between the acid-containing water subsequent oil removing mechanism and an acid liquid leading-out and recycling mechanism; a liquid-discharging liquid cap is arranged at the upper end of a liquid overflowing pipe; the right end of a lever is connected with the liquid-discharging liquid cap and the middle part of the lever is connected with the upper end of a lever stand column; a floater is connected with the right end of the lever. According to the wastewater treatment device, the wastewater treatment cost is reduced; the environment is protected; acid-containing wastewater in the acid-containing wastewater storage tank can be led into the acid-containing water subsequent oil removing mechanism with a constant flow.

Description

Wastewater treatment equipment in rare earth preparation

Technical field

The utility model belongs to technical field of environmental protection facilities, is specifically related to the wastewater treatment equipment in a kind of rare earth preparation.

Background technology

There is removal step in as the process of yttrium oxide, terbium sesquioxide, dysprosium oxide etc. preparing rare earth, removal step is used non-saponification process conventionally, and meeting produces hydrogen ion in non-saponification process, thereby make the raffinate in extraction process (comprising extraction step and purification step) be acid (pH value is about 0.7-2), for fear of undermining environment, Rare Earth Production manufacturer conventionally raffinate is added to alkali neutralization and in rear discharge up to standard, deficiency is: the one, and cost for wastewater treatment is large; The 2nd, owing to containing trace rare-earth in raffinate acid-bearing wastewater, its discharge is caused to the wasting of resources; The 3rd, once waste water treatment process is lost stable and/or processing links error, easily cause below standard waste water to drain into the external world, thereby undermine water system and soil.

Certainly, by being back to production technique after the wastewater treatment in rare earth preparation, not only can avoid causing the pollution to environment, and can economize on resources, because be conventionally mingled with trace rare-earth in waste water, can save the consumption of the bronsted lowry acids and bases bronsted lowry in rare earth preparation technology in addition, because contain the hydrochloric acid that mass percent concentration is about 0.02-0.03% in waste water.Hence one can see that, and waste water is used and can receives the effect of arrow three carvings.

Again, due to by waste water recycling in the process of production technique, in introducing, follow and before the header tank at rare-earth extracting tank place, need to carry out follow-up oil removing (oil-contg in waste water is larger, because having used thinner in extraction process is kerosene, etc.), and be positioned at the downstream of acid-bearing wastewater storage tank containing the follow-up oil removing of sour water mechanism, and the highly significant of acid-bearing wastewater storage tank is higher than containing the follow-up oil removing of sour water mechanism, there is larger difference of altitude between the two, the existence of difference of altitude can make the flow being entered containing the follow-up oil removing of sour water mechanism by acid-bearing wastewater storage tank produce fluctuation, and flow rate fluctuation meeting makes to occur erratic situation containing the acid liquid amount that contains of the follow-up oil removing of sour water mechanism, thereby impact is containing the operation effectiveness of the follow-up oil removing of sour water mechanism.Therefore the problem that how to make acid-bearing wastewater storage tank not be subject to the impact of height of liquid level in tank and be able to all the time with the identical follow-up oil removing of flow introducing water content sour water mechanism is the key factor that can waste water be effectively used.For this reason, the applicant has carried out literature search, to be intended to obtain corresponding enlightenment, yet in disclosed patent and non-patent literature, is being showed no all referential technology enlightenments up to now.So the applicant has done long-term and positive exploration, finally formed technical scheme described below.

Summary of the invention

Task of the present utility model is to provide a kind of and contributes to embody wastewater zero discharge, be conducive to reuse after wastewater treatment and can avoid trace rare-earth in waste water to run off and use and save valuable rare earth resources, be of value to and avoid undermining environment and use and embody environmental protection and produce and have and be convenient to ensure that acid-bearing wastewater storage tank supplies with acid-bearing wastewater follow-up oil removing mechanism with constant flow by waste water and use the wastewater treatment equipment in the rare earth preparation of guaranteeing desirable follow-up deoiling effect.

Task of the present utility model completes like this, wastewater treatment equipment in a kind of rare earth preparation, comprise a prime settler and a rear class settler, on the top of a side of prime settler, be connected with one for raffinate acid-bearing wastewater being introduced to the raffinate acid-bearing wastewater inlet tube in the prime settler chamber of prime settler, and at prime settler, towards the bottom of a side of rear class settler, be connected with one end of a transition conduit communicating with prime settler chamber, the other end of transition conduit is connected towards the top of a side of prime settler with rear class settler and communicates with the rear class settler chamber of rear class settler, the dirty cylinder of one oil-collecting, one acid-bearing wastewater storage tank He Yibeng liquid mechanism, the dirty cylinder of oil-collecting is between rear class settler and acid-bearing wastewater storage tank, on the top of the dirty cylinder of oil-collecting, be connected with a dirty pipe of oil-collecting of introducing for greasy dirt in by prime settler and rear class settler in the dirty cylinder of the oil-collecting chamber of the dirty cylinder of oil-collecting, the dirty pipe while of this oil-collecting is connected with the top of the tank wall of prime settler and rear class settler, and communicate with prime settler chamber and rear class settler chamber simultaneously, the top of acid-bearing wastewater storage tank is equipped with an acid-bearing wastewater communicating with the storage tank chamber of acid-bearing wastewater storage tank and introduces interface, at this acid-bearing wastewater, introduce on interface and be connected with one for acid-bearing wastewater being incorporated into one end of the acid-bearing wastewater inlet tube in storage tank chamber, the other end Yu Beng liquid mechanism of this acid-bearing wastewater inlet tube connects, Er Beng liquid mechanism is connected with the bottom of the tank wall of rear class settler, and communicate with rear class settler chamber, at the upper lateral part of acid-bearing wastewater storage tank, be connected with one end of the dirty pipe of a storage tank oil extraction, and the other end of the dirty pipe of this storage tank oil extraction is stretched in the dirty cylinder of the oil storage chamber of the dirty cylinder of described oil-collecting, in the lower side of acid-bearing wastewater storage tank, connected one and drawn interface containing sour water, should draw interface containing sour water communicates with storage tank chamber, one contains the follow-up oil removing of sour water mechanism containing sour water stability of flow mechanism and, containing sour water stability of flow mechanism, is connected to containing sour water and draws interface and contain between the follow-up oil removing of sour water mechanism, one water-and-oil separator and an acid solution are drawn reuse mechanism, water-and-oil separator is connected to containing sour water follow-up oil removing mechanism and acid solution and draws between reuse mechanism, and acid solution is drawn reuse mechanism and is connected with following the header tank in the rare-earth extracting tank in Rare Earth Production workshop by pipeline, described comprises a pressurizer tank containing sour water stability of flow mechanism, below the right side of this pressurizer tank, with horizontality, being provided with the feed liquor that the pressurizer tank chamber of a pressurizer tank communicates takes over, the right-hand member that this feed liquor is taken over is stretched over outside pressurizer tank chamber, and be provided with a feed liquor and take over valve, and the left end that feed liquor is taken over is stretched in pressurizer tank chamber, and be connected with a liquid overflow pipe, the chamber diapire in the bottom of this liquid overflow pipe and pressurizer tank chamber is fixed, and this liquid overflow pipe and feed liquor form vertical relation between taking over, in the left side of pressurizer tank and be positioned at substantially pressurizer tank short transverse inclined to one side lower position with horizontality be provided with one communicate with pressurizer tank chamber draw adapter containing sour water, one lever column, this lever column keeps longitudinal parallel state and the described chamber diapire in described pressurizer tank chamber to fix in the position corresponding to described liquid overflow pipe and with liquid overflow pipe, one fluid liquid cap, this fluid liquid cap fluctuates and is provided in the upper end of described liquid overflow pipe, and offers liquid-through hole on the wall body of this fluid liquid cap, and liquid-through hole communicates with the cap chamber of fluid liquid cap, and cap chamber communicates with the discharge tube chamber of liquid overflow pipe, be positioned at a lever and a float in described pressurizer tank chamber, the right-hand member of lever is connected with described fluid liquid cap, middle part is pivotally connected with the upper end of described lever column, float is connected to the left end of lever, wherein: described feed liquor is taken over and is connected with described acid-bearing wastewater storage tank, describedly contain sour water fairlead and the described follow-up oil removing of the sour water mechanism that contains is connected.

In a specific embodiment of the present utility model, in the prime settler chamber of described prime settler and along the length direction in prime settler chamber, with interval state, be provided with one group of prime settler chamber grid, between the bottom of each prime settler chamber grid and the bottom in prime settler chamber, maintain logical liquid space; In the rear class settler chamber of described rear class settler and along the length direction in rear class settler chamber, with interval state, be provided with one group of rear class settler chamber grid, between the bottom of each rear class settler chamber grid and the bottom in rear class settler chamber, maintain logical liquid space.

In another specific embodiment of the present utility model, short transverse in the dirty cylinder of the oil-collecting chamber of the dirty cylinder of described oil-collecting and along the dirty cylinder of oil-collecting chamber be provided with a pair of form each other cruciform relation strain greasy dirt plate, and be provided with a remittance greasy dirt groove, the upper plane of this remittance greasy dirt groove is lower than the described upper plane of straining greasy dirt plate, on the outer wall of the dirty cylinder of oil-collecting, be provided with an oil-collecting dirty cylinder wash water valve and a remittance greasy dirt groove draining valve, the dirty cylinder of oil-collecting wash water valve is positioned at the below of the short transverse of the dirty cylinder of oil-collecting, and communicate with the dirty chamber of described oil-collecting, and remittance greasy dirt groove draining valve is positioned at the middle part of the short transverse of the dirty cylinder of oil-collecting, and communicate with remittance greasy dirt groove, wherein, strain between the bottom of greasy dirt plate and the bottom in the dirty cylinder of oil-collecting chamber and maintain space.

In another specific embodiment of the present utility model, on described acid-bearing wastewater storage tank, be provided with one for disclosing the liquid level indicating mechanism of the liquid level of the acid-bearing wastewater in storage tank chamber, this liquid level indicating mechanism comprises liquid level float, float connection cord, connection cord slide guide wheel and weight, liquid level float is positioned at storage tank chamber, connection cord slide guide wheel is arranged on the top side portion of acid-bearing wastewater storage tank, one end of float connection cord is fixedly connected with liquid level float, the other end causes outside storage tank chamber and is being fixedly connected with weight after connection cord slide guide wheel, wherein: on the inwall in described storage tank chamber and at the position corresponding to described liquid level float, be provided with a floater guiding limiting plate.

In another specific embodiment of the present utility model, described Beng Ye mechanism comprises pump liquid motor and infusion pump, pump liquid motor coordinates with infusion pump transmission, and by infusion pump together with pump liquid motor bearing at the terrace of field of employment or be arranged on the resting support on terrace, the infusion pump fluid inlet of this infusion pump is connected with the bottom of the tank wall of described rear class settler and communicates with described rear class settler chamber, and the infusion pump liquid outlet of infusion pump and the described the other end of described acid-bearing wastewater inlet tube are connected.

Of the present utility model, also have in a specific embodiment, described comprises a make-up tank cell body containing the follow-up oil removing of sour water mechanism, containing sour water input tube, allotment acid solution output tube and one group of stirring mechanism, make-up tank cell body is arranged on terrace, containing the left end of sour water input tube and the top on the right side of acid adjustment cell body is connected and communicate with the cell body chamber of make-up tank cell body, and containing sour water stability of flow mechanism, be connected with described containing the right-hand member of sour water input tube, and be provided with keying valve containing on the pipeline of sour water input tube, the right-hand member of allotment acid solution output tube is connected with the bottom in the left side of make-up tank cell body and communicates with cell body chamber, and the left end of allotment acid solution output tube is connected with the bottom of the short transverse of described water-and-oil separator, one group of stirring mechanism is arranged on the support at the top of being fixed on make-up tank cell body with interval state, and be stretched in described cell body chamber, wherein: at the top of make-up tank cell body, be equipped with one for cell body chamber being covered to the groove lid protecting, at groove, cover and be provided with for introducing the blender inlet tube of blender and be fixed with one for the endoceliac air of groove is caused to extraneous blow-down pipe in cell body chamber.

More of the present utility model and in a specific embodiment, described one group of stirring mechanism respectively comprises agitator motor, step-down gear, stir shaft and stirring rake, agitator motor and speed reducer drive connect, and be fixed on described support together with agitator motor by step-down gear, the upper end of stir shaft is in transmission connection by the speed reducer output shaft of adapter sleeve and step-down gear, and the lower end of stir shaft is being stretched in described cell body chamber after described groove lid, stirring rake is fixed on the described lower end of stir shaft.

In of the present utility model and then a specific embodiment, on described stir shaft and be positioned at described stirring rake above be provided with an anti-splashing disk, this anti-splashing disk is endoceliac containing above the liquid level of sour water corresponding to described groove under use state.

Of the present utility model again more and in a specific embodiment, described acid solution is drawn reuse mechanism and is comprised that this goes out motor and draws pump, draw motor and draw pump and connect, and by drawing pump together with drawing motor bearing on the terrace of field of employment, the pump feed liquor interface of drawing of drawing pump is connected and communicates with water-and-oil separator with the bottom, left side of described water-and-oil separator, at this, draw and on pump feed liquor interface, be provided with a logical fluid valve, drawing drawing of pump pumps one end that liquid interface draws reuse pipe with acid solution and is connected, and the other end that acid solution is drawn reuse pipe is connected with following the high liquid bath in the rare-earth extracting tank in Rare Earth Production workshop, and in acid solution, draw on the pipeline of reuse pipe and be provided with a reuse valve, on the top of described water-and-oil separator, be provided with an oil extraction interface.

The technical scheme that the utility model provides is owing to coming from the raffinate acid-bearing wastewater reuse after treatment of rare earth extraction operation, thereby non-wastewater discharge, not only can alleviate cost for wastewater treatment, and the trace rare-earth in raffinate acid-bearing wastewater is utilized; Owing to discharging without waste acid water, thereby be of value to protection of the environment and embody environmental protection and produce; Owing to being provided with containing sour water stability of flow mechanism, thereby can make the acid-bearing wastewater in acid-bearing wastewater storage tank introduce containing the follow-up oil removing of sour water mechanism with constant flow.

Accompanying drawing explanation

Fig. 1 is example structure figure of the present utility model.

Embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, applicant elaborates the mode with embodiment below, but to the description of embodiment, be not all the restriction to the utility model scheme, any according to the utility model design, done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

Every directionality concept that relates to upper and lower, left and right and so on is all with the location status shown in Fig. 1 in the following description, thereby can not be interpreted as specific limited of the present utility model whereby.

Refer to Fig. 1, provided a prime settler 1 and a rear class settler 2, prime settler 1 also can be described as one-level settling tank, and rear class settler 2 also can be described as second-level settling pond.Again, owing to coming from production technique as being mingled with a large amount of greasy dirts in the raffinate acid-bearing wastewater of extraction process, so prime settler 1 also can be referred to as prime water separation tank, and same, rear class settler 2 can be described as rear class water separation tank.In a side of prime settler 1, be connected with one for raffinate acid-bearing wastewater being introduced to the raffinate acid-bearing wastewater inlet tube 12 in the prime settler chamber 11 of prime settler 1 in the top in left side, and at prime settler 1, towards the bottom of a side (right side) of rear class settler 2, be connected with one end (diagram left end) of a transition conduit 13 communicating with prime settler chamber 11, and the other end of transition conduit 13 is illustrated left end, is connected towards the top of a side of prime settler 1 with rear class settler 2 and communicates with the rear class settler chamber 21 of rear class settler 2.

In the prime settler chamber 11 of aforementioned prime settler 1 and the length direction that is following prime settler chamber 11 with interval state, be provided with the prime settler chamber grid 111 that one group of quantity is not subject to illustrating two pieces of restrictions; In the rear class settler chamber 21 of aforementioned rear class settler 2 and same length direction along rear class settler chamber 21 with interval state, be provided with the rear class settler chamber grid 211 that one group of quantity should not be subject to illustrating two pieces of restrictions equally.The bottom of prime settler chamber grid 111 does not contact with the diapire in prime settler chamber 11, and between the diapire in prime settler chamber 11 maintain logical liquid space, rear class settler chamber grid 211, with example, and between the diapire in rear class settler chamber 21 maintains logical liquid space.

Provided the dirty cylinder 3 of an oil-collecting, one acid-bearing wastewater storage tank 4 He Yibeng liquid mechanisms 5, the dirty cylinder 3 of oil-collecting is preferably disposed between rear class settler 2 and acid-bearing wastewater storage tank 4, on the top of the dirty cylinder 3 of oil-collecting, be connected with one for by front, rear class settler 1, oil-collecting dirt pipe 32 in the dirty cylinder of the oil-collecting chamber 31 of the dirty cylinder 3 of greasy dirt introducing oil-collecting in 2, the dirty pipe 32 of this oil-collecting is connected with the top of the tank wall of prime settler 1 simultaneously and is connected with the top of the tank wall of rear class settler 2, and communicate with the top in prime settler chamber 11 and rear class settler chamber 21 simultaneously, so that before making to be suspended in, rear class settler 11, the greasy dirt on the raffinate acid-bearing wastewater surface in 21 is introduced in the dirty cylinder of oil-collecting chamber 31.Acid-bearing wastewater storage tank 4 is being used state lower support on terrace, at its top, be equipped with an acid-bearing wastewater communicating with the storage tank chamber 41 of acid-bearing wastewater storage tank 4 and introduce interface 42, at this acid-bearing wastewater, introduce on interface 42 and be connected with one for acid-bearing wastewater being introduced to one end (illustrated right-hand member) of the acid-bearing wastewater inlet tube 421 in storage tank chamber 41, and the other end of acid-bearing wastewater inlet tube 421 (illustrated left end) Yu Beng liquid mechanism 5 connects, Er Beng liquid mechanism 5 is fixedly connected with the bottom of the tank wall of rear class settler 2, and communicates with rear class settler chamber 21.At the upper lateral part of acid-bearing wastewater storage tank 4, be connected with one end (right-hand member) of the dirty pipe 43 of a storage tank oil extraction, and the other end (left end) of the dirty pipe 43 of this storage tank oil extraction is stretched in the dirty cylinder of the oil storage chamber 31 of the dirty cylinder 3 of aforementioned oil-collecting.In the lower side of acid-bearing wastewater storage tank 4, connected one and drawn interface 44 containing sour water, should draw interface 44 containing sour water and communicate with storage tank chamber 41.

Preferably, short transverse in the dirty cylinder of aforesaid oil-collecting chamber 31 and along the dirty cylinder of oil-collecting chamber 31 be provided with a pair of summary than the accent in dirty chamber 31 of oil-collecting low strain greasy dirt plate 311, this a pair of greasy dirt plate 311 of straining forms cruciform relation each other, by this, a pair ofly strain greasy dirt plate 311 and make the dirty cylinder of an oil-collecting chamber 31 be separated out four capacitors, appointing in these four capacitors, selects a remittance greasy dirt groove 312 is set in a capacitor, it is low that the position ratio of this remittance greasy dirt groove 312 is strained greasy dirt plate 311, that is to say, the upper end end face of remittance greasy dirt groove 312 is gone up plane and is gone up plane lower than the upper end end face of straining greasy dirt plate 311, strain between the bottom of greasy dirt plate 311 and the bottom in the dirty cylinder of oil-collecting chamber 31 and maintain space.On the outer wall of the dirty cylinder 3 of oil-collecting, be provided with an oil-collecting dirty cylinder wash water valve 33 and a remittance greasy dirt groove draining valve 34, the dirty cylinder of oil-collecting wash water valve 33 is positioned at the below of the short transverse of the dirty cylinder 3 of oil-collecting, and communicate with the dirty chamber 31 of oil-collecting, and remittance greasy dirt groove draining valve 34 is positioned at the nearly middle part of the short transverse of the dirty cylinder 3 of oil-collecting, and communicate with remittance greasy dirt groove 312.

Via the dirty pipe 32 of oil-collecting, the greasy dirt in forward and backward level settler chamber 11,21 is introduced to the dirty cylinder of oil-collecting chamber 31, and greasy dirt in the dirty cylinder of oil-collecting chamber 31 flows into and converges greasy dirt groove 312, sump oil content in remittance greasy dirt groove 312 overweights the sump oil content being greater than in the dirty cylinder of oil-collecting chamber 31, and by remittance greasy dirt groove draining valve 34, emit processing, the sump oil in the dirty cylinder of same oil-collecting chamber 31 is emitted processing by the dirty wash water valve 33 of oil-collecting.

For the ease of watching the liquid level of the acid-bearing wastewater in the storage tank chamber 41 of acid-bearing wastewater storage tank 4, therefore on acid-bearing wastewater storage tank 4, be provided with a level instruction device 45, this level instruction device 45 comprises liquid level float 451, float connection cord 452, connection cord slide guide wheel 453 and weight 454, liquid level float 451 is positioned at storage tank chamber 41, connection cord slide guide wheel 453 has a pair of, be arranged on the top side portion of acid-bearing wastewater storage tank 4, be arranged on the sidepiece of the top cover of acid-bearing wastewater storage tank 4, one end of float connection cord 452 is fixedly connected with (being solid) with liquid level float 451, the connection cord hole 46 that the other end covers in the top side portion through being preset in acid-bearing wastewater storage tank 4 and be fixedly connected with (being to consolidate) after connection cord slide guide wheel 453 with weight 454.

Preferably, a floater guiding limiting plate 411 is set on the inwall in storage tank chamber 41 and in the position corresponding to liquid level float 451.

Above mentioned Beng Ye mechanism 5 comprises pump liquid motor 51 and infusion pump 52, pump liquid motor 51 coordinates with infusion pump 52 transmissions with the horizontally-arranged state of level, and be bearing on the terrace of field of employment together with pump liquid motor 51 by infusion pump 52, or be bearing on the resting support being placed on terrace, and follow in rear class settler 2.As shown in Figure 1, the infusion pump fluid inlet 521 of infusion pump 52 is connected with the lower right side of the tank wall of rear class settler 2 and communicates with rear class settler chamber 21, and the infusion pump liquid outlet 522 of infusion pump 52 and the described the other end of aforementioned acid-bearing wastewater inlet tube 421 are connected.

Under the work of the pump liquid motor 51 of Beng liquid mechanism 5, raffinate acid-bearing wastewater after 1 degreasing of prime settler is introduced rear class settler 2 by transition conduit 13, the raffinate acid-bearing wastewater entering in the rear class settler chamber 21 of rear class settler 2 is introduced infusion pumps 52 by infusion pump fluid inlet 521 after degreasing for the second time, through infusion pump liquid outlet 522, draw again, and introduce in container for storing liquid chamber 41 through acid-bearing wastewater inlet tube 421.And likely still have remaining greasy dirt just by the dirty pipe 43 of storage tank oil extraction, to be entered in the dirty cylinder of the oil-collecting chamber 311 of the dirty cylinder 3 of aforesaid oil storage, drawing interface 44 containing sour water and cause containing sour water stability of flow mechanism 6 by aforesaid containing sour water after wipe oil.

Due to acid-bearing wastewater storage tank 4 and also to describe below containing there being larger difference of altitude between the follow-up oil removing of sour water mechanism 7, be that the former highly significant is higher than the latter's height, therefore in order to ensure introducing containing the follow-up oil removing of sour water mechanism 7 with stable flow containing sour water in acid-bearing wastewater storage tank 4, more precisely for fear of the pressure reduction because of between the former with the latter, cause the suddenly big or suddenly small fluctuation of flow to use the follow-up deoiling effect ensureing containing the follow-up oil removing of sour water mechanism 7, so the utility model scheme is that acid-bearing wastewater storage tank 4 and the latter are aforesaid containing sour water stability of flow mechanism 6 containing arranging between the follow-up oil removing of sour water mechanism 7 at the former.

The above mentioned sour water stability of flow mechanism 6 that contains comprises a pressurizer tank 61, on the right side of this pressurizer tank 61 (with location status shown in Fig. 1, as follows) with horizontality, be provided with a feed liquor adapter 62 communicating with the pressurizer tank chamber 611 of pressurizer tank 61, the right-hand member of this feed liquor adapter 62 is stretched over outside pressurizer tank chamber 611, and be provided with a feed liquor and take over valve 621, and the left end of feed liquor adapter 62 is stretched in pressurizer tank chamber 611, and be connected with a liquid overflow pipe 622, the chamber diapire in the bottom of this liquid overflow pipe 622 and pressurizer tank chamber 611 is fixed (sealing is fixing), and this liquid overflow pipe 622 and feed liquor form vertical relation between taking over 62, in the left side of pressurizer tank 61 and the position that is positioned at the side on the lower side in left side with horizontality, be provided with one that communicate with pressurizer tank chamber 611 and draw adapter 63 with the sour water that contains being connected containing the follow-up oil removing of sour water mechanism 7, one lever column 64, this lever column 64 is positioned at pressurizer tank chamber 611, and fixes at the chamber diapire in the position corresponding to aforementioned liquid overflow pipe 622 and pressurizer tank chamber 611, and shown in figure, lever column 64 keeps longitudinally parallel with liquid overflow pipe 62, one fluid liquid cap 65, this fluid liquid cap 65 is provided in or claims to be enclosed within the upper end of liquid overflow pipe 622 in the mode fluctuating, and on the wall body of this fluid liquid cap 65, offer liquid-through hole 651, liquid-through hole 651 communicates with the cap chamber of fluid liquid cap 65, and cap chamber communicates with the discharge tube chamber of liquid overflow pipe 622, one is positioned at lever 66 and a float 67 in pressurizer tank chamber 611, the top of the right-hand member of lever 66 and fluid liquid cap 65 is articulated and connected, the upper end of the middle part of lever 66 and lever column 64 is pivotally connected or claim to be articulated and connected, and the left end of lever 66 and float 67 are articulated and connected, that is to say that float 67 is connected to the left end of lever 66.Wherein, aforementioned feed liquor is taken over 62 described right-hand member and is drawn the outlet valve 441 of interface 44 and be connected with the aforesaid sour water that contains.

When the liquid level in pressurizer tank chamber 611 raises, float 67 floatings, the left end of the lever 66 being connected with float 67 upwarps, and the right-hand member of lever 66 has a down dip with one end that fluid liquid cap 65 is connected, thereby make fluid liquid cap 65 descending, liquid-through hole 651 on fluid liquid cap 65 is increased by the degree of the tube wall of liquid overflow pipe 622 sealing, the liquid measure entering in pressurizer tank chamber 611 reduces, vice versa, thereby guarantee that the liquid measure in pressurizer tank chamber 611 is in substantially invariable amount, avoid pressure-difference fluctuation and affect the 7 follow-up deoiling effects containing the follow-up oil removing of sour water mechanism, because if remove this containing sour water stability of flow mechanism 6 and directly by introducing containing the follow-up oil removing of sour water mechanism 7 containing sour water in the storage tank chamber 41 of acid-bearing wastewater storage tank 4, so certainly can produce pressure surge because of pressure reduction.

Below to describing in detail containing the follow-up oil removing of sour water mechanism 7 of repeatedly mentioning above, why applicant is called containing the follow-up oil removing of sour water mechanism 7, because for aforesaid forward and backward level settler 1,2, prime settler 1 and rear class settler 2 have played in fact the effect of oil removing in early stage.Should comprise make-up tank cell body 71 containing the follow-up oil removing of sour water mechanism 7, containing sour water input tube 72, allotment acid solution output tube 73 and one group of stirring mechanism 74, make-up tank cell body 71 is arranged on terrace, containing the left end of sour water input tube 72 and the right side (location status shown in Fig. 1 of acid adjustment cell body 71, as follows) top connect, and communicate with the cell body chamber 711 of make-up tank cell body 71, and being connected containing right-hand member and the aforementioned sour water fairlead 63 that contains that contains sour water stability of flow mechanism 6 of sour water input tube 72, and opening and closing valve 721 containing being provided with on the pipeline of sour water input tube 72, the right-hand member of allotment acid solution output tube 73 is connected with the bottom in the left side of make-up tank cell body 71 and communicates with cell body chamber 711, and the left end of allotment acid solution output tube 73 is connected with the bottom of the short transverse of the water-and-oil separator 8 that also will illustrate below, one group of stirring mechanism 74 is arranged on the support 712 at the top of being fixed on make-up tank cell body 71 with interval state, and be stretched in cell body chamber 711, wherein: at the top of make-up tank cell body 71, be equipped with one for cell body chamber 711 being covered to the groove lid 713 protecting, on groove lid 713, be provided with for the blender inlet tube 7131 to the interior introducing blender in cell body chamber 711 and for the air in cell body chamber 711 is caused to extraneous blow-down pipe 7132.

The function of above mentioned blender inlet tube 7131 is blenders from kerosene to the interior introducing in cell body chamber 711 that filled the post of by, because in Rare-Earth Extraction Process, needing to use extraction agent is that naphthenic acid, additive are that secondary octanol and thinner are kerosene.

Above mentioned one group of stirring mechanism 74 respectively comprises agitator motor 741, step-down gear 742, stir shaft 743 and stirring rake 744, agitator motor 741 connects with step-down gear 742 transmissions, and be fixed on aforesaid support 712 together with agitator motor 741 by step-down gear 742, the upper end of stir shaft 743 is in transmission connection by adapter sleeve 7431 and the speed reducer output shaft 7421 of step-down gear 742, and the lower end of stir shaft 743 is stretched in described cell body chamber 711 after the stir shaft resigning hole on groove lid 713, stirring rake 744 is fixed on the lower end of stir shaft 743.

Preferably, on stir shaft 743 and be positioned at stirring rake 744 above be provided with an anti-splashing disk 7432, this anti-splashing disk 7432 under use state corresponding in cell body chamber 711 containing on the liquid level of sour water, to prevent that drop that stirring rake 744 produces in whipping process is opened in stir shaft resigning hole splash on groove lid 713 outside cell body chamber 711 through aforesaid, prevent that splash from arriving groove lid 713 side surfaces back to cell body chamber 71.

Above mentioned water-and-oil separator 8 is arranged on the left side containing the make-up tank cell body 71 of the follow-up oil removing of sour water mechanism 7, and using state lower support on the terrace of field of employment, top in the left side of the short transverse of water-and-oil separator 8 is provided with an oil extraction interface 81, fluid after water-and-oil separator 8 separation is drawn from this oil extraction interface 81, the bottom on the right side of the short transverse of water-and-oil separator 8 and be provided with mixed liquid in the position corresponding to aforementioned mixed liquid output tube 73 and introduce interface 82, and introduce between interface 82 and mixed liquid output tube 73 and be provided with a liquid feed valve 821 at this mixed liquid.Via the acid solution after water-and-oil separator 8 separation, by connected acid solution, draw reuse mechanism 9 and cause and follow in the header tank of the rare-earth extracting tank in Rare Earth Production workshop, by header tank, introduce rare-earth extracting tank and use.

Above mentioned acid solution draw reuse mechanism 9 preferably but not the structure being definitely limited to is as follows: comprise that this goes out motor 91 and draws pump 92, draw motor 91 and draw pump 92 and connect, and be bearing on the terrace of field of employment together with drawing motor 91 by drawing pump 92, the pump feed liquor interface 921 of drawing of drawing pump 92 is connected with the bottom, left side of aforementioned water-and-oil separator 8, and communicate with the water-and-oil separator chamber of water-and-oil separator 8, at this, draw and on pump feed liquor interface 921, be provided with a logical fluid valve 9211, drawing drawing of pump 92 pumps one end that liquid interface 922 draws reuse pipe 9221 with acid solution and is connected, and this acid solution is drawn the other end of reuse pipe 9221 and is connected with following in the high liquid bath at rare-earth extracting tank place of Rare Earth Production workshop, and in acid solution, draw on the pipeline of reuse pipe 9221 and be provided with reuse valve 92211.

The raffinate acid-bearing wastewater (being mingled with greasy dirt) producing in Rare-Earth Extraction Process is in raffinate acid-bearing wastewater 12 is introduced as the prime settler chamber 11 of prime settler 1 of one-level oil removing mechanism, float on surperficial greasy dirt and introduce the dirty cylinder of oil-collecting chamber 31 through the dirty pipe 32 of oil-collecting of the dirty cylinder 3 of oil-collecting, under the work of the pump liquid motor 51 of Beng liquid mechanism 5, raffinate acid-bearing wastewater in the water cavity 112 in prime settler chamber 11 is in transition conduit 13 enters the rear class settler chamber 21 of rear class settler 2, the greasy dirt that floats on 21 surfaces, rear class settler chamber is introduced in the dirty cylinder of oil-collecting chamber 31 through the dirty pipe 32 of oil-collecting of the dirty cylinder 3 of oil-collecting equally, and raffinate acid-bearing wastewater in the water cavity in the rear class settler chamber 21 of rear class settler 2 is introduced infusion pumps 52 through the infusion pump fluid inlet 521 of infusion pump 2, from infusion pump liquid outlet 522, draw again, and introduce in the storage tank chamber 41 of acid-bearing wastewater storage tank 4 through acid-bearing wastewater inlet tube 421, liquid level in storage tank chamber 41 is by weight 454 signals of level instruction device 45.The greasy dirt that floats on the acid-bearing wastewater surface in storage tank chamber 41 causes the dirty cylinder of oil-collecting chamber 31 through the dirty pipe 43 of storage tank oil extraction, and in storage tank chamber 41 containing sour water by drawing interface 44 and causing containing sour water stability of flow mechanism 6 containing sour water, with containing sour water, draw the pipeline that interface 44 is connected on be provided with outlet valve 441.By introducing containing the follow-up oil removing of sour water mechanism 7 and carry out follow-up oil removing containing sour water containing sour water stability of flow mechanism 6, then from mixed liquid output tube 73, cause water-and-oil separator 8, finally by the acid solution being connected with water-and-oil separator 8, draw reuse mechanism 9 and cause and follow in Rare Earth Production place is the header tank at rare-earth extracting tank place in Rare Earth Production workshop, standby.

Claims

1. wastewater treatment equipment in a kind of rare earth preparation, it is characterized in that comprising a prime settler (1) and a rear class settler (2), on the top of a side of prime settler (1), be connected with one for raffinate acid-bearing wastewater being introduced to the raffinate acid-bearing wastewater inlet tube (12) in the prime settler chamber (11) of prime settler (1), and at prime settler (1), towards the bottom of a side of rear class settler (2), be connected with one end of a transition conduit (13) communicating with prime settler chamber (11), the other end of transition conduit (13) is connected towards the top of a side of prime settler (1) with rear class settler (2) and communicates with the rear class settler chamber (21) of rear class settler (2), the dirty cylinder of one oil-collecting (3), one acid-bearing wastewater storage tank (4) He Yibeng liquid mechanism (5), the dirty cylinder of oil-collecting (3) is positioned between rear class settler (2) and acid-bearing wastewater storage tank (4), on the top of the dirty cylinder of oil-collecting (3), be connected with an oil-collecting dirt of introducing for greasy dirt in by prime settler (1) and rear class settler (2) in the oil-collecting dirty cylinder chamber (31) of the dirty cylinder of oil-collecting (3) and manage (32), the dirty pipe of this oil-collecting (32) while is connected with the top of the tank wall of prime settler (1) and rear class settler (2), and communicate with prime settler chamber (11) and rear class settler chamber (21) simultaneously, the top of acid-bearing wastewater storage tank (4) is equipped with an acid-bearing wastewater communicating with the storage tank chamber (41) of acid-bearing wastewater storage tank (4) and introduces interface (42), at this acid-bearing wastewater, introduce on interface (42) and be connected with one for acid-bearing wastewater being incorporated into one end of the acid-bearing wastewater inlet tube (421) in storage tank chamber (41), the other end Yu Beng liquid mechanism (5) of this acid-bearing wastewater inlet tube (421) connects, Er Beng liquid mechanism (5) is connected with the bottom of the tank wall of rear class settler (2), and communicate with rear class settler chamber (21), at the upper lateral part of acid-bearing wastewater storage tank (4), be connected with one end of the dirty pipe of a storage tank oil extraction (43), and the other end of the dirty pipe of this storage tank oil extraction (43) is stretched in the oil storage dirty cylinder chamber (31) of the dirty cylinder of described oil-collecting (3), in the lower side of acid-bearing wastewater storage tank (4), connected one and drawn interface (44) containing sour water, should draw interface (44) containing sour water communicates with storage tank chamber (41), one contains the follow-up oil removing of sour water mechanism (7) containing sour water stability of flow mechanism (6) and, containing sour water stability of flow mechanism (6), is connected to containing sour water and draws interface (44) and contain between the follow-up oil removing of sour water mechanism (7), one water-and-oil separator (8) and an acid solution are drawn reuse mechanism (9), water-and-oil separator (8) is connected to containing the follow-up oil removing of sour water mechanism (7) and acid solution and draws between reuse mechanism (9), and acid solution is drawn reuse mechanism (9) and is connected with following the header tank in the rare-earth extracting tank in Rare Earth Production workshop by pipeline, described comprises a pressurizer tank (61) containing sour water stability of flow mechanism (6), in the below on the right side of this pressurizer tank (61), with horizontality, be provided with the feed liquor that the pressurizer tank chamber (611) of a pressurizer tank (61) communicates and take over (62), the right-hand member that this feed liquor is taken over (62) is stretched over outside pressurizer tank chamber (611), and be provided with a feed liquor and take over valve (621), and the left end of feed liquor adapter (62) is stretched in pressurizer tank chamber (611), and be connected with a liquid overflow pipe (622), the chamber diapire of the bottom of this liquid overflow pipe (622) and pressurizer tank chamber (611) is fixed, and this liquid overflow pipe (622) and feed liquor are taken between (62) and are formed vertical relation, in the left side of pressurizer tank (61) and be positioned at substantially pressurizer tank (1) short transverse inclined to one side lower position with horizontality be provided with one communicate with pressurizer tank chamber (611) containing sour water, draw adapter (63), one lever column (64), this lever column (64) keeps longitudinal parallel state and the described chamber diapire in described pressurizer tank chamber (611) to fix in the position corresponding to described liquid overflow pipe (622) and with liquid overflow pipe (622), one fluid liquid cap (65), this fluid liquid cap (65) fluctuates and is provided in the upper end of described liquid overflow pipe (622), and on the wall body of this fluid liquid cap (65), offer liquid-through hole (651), liquid-through hole (651) communicates with the cap chamber of fluid liquid cap (65), and cap chamber communicates with the discharge tube chamber of liquid overflow pipe (622), be positioned at a lever (66) and a float (67) in described pressurizer tank chamber (611), the right-hand member of lever (66) is connected with described fluid liquid cap (65), middle part is pivotally connected with the upper end of described lever column (64), float (61) is connected to the left end of lever (66), wherein: described feed liquor is taken over (62) and is connected with described acid-bearing wastewater storage tank (4), describedly contain sour water fairlead (63) and the described follow-up oil removing of the sour water mechanism (7) that contains is connected.

2. wastewater treatment equipment in rare earth preparation according to claim 1, it is characterized in that in the prime settler chamber (11) of described prime settler (1) and with interval state, be provided with one group of prime settler chamber grid (111) along the length direction in prime settler chamber (11), between the bottom of each prime settler chamber grid (111) and the bottom in prime settler chamber (11), maintaining logical liquid space; In the rear class settler chamber (21) of described rear class settler (2) and along the length direction in rear class settler chamber (21), with interval state, be provided with one group of rear class settler chamber grid (211), between the bottom of each rear class settler chamber grid (211) and the bottom in rear class settler chamber (11), maintain logical liquid space.

3. wastewater treatment equipment in rare earth preparation according to claim 1, it is characterized in that short transverse in the oil-collecting dirty cylinder chamber (31) of the dirty cylinder of described oil-collecting (3) and along dirty chamber (31) of oil-collecting be provided with a pair of form each other cruciform relation strain greasy dirt plate (311), and be provided with a remittance greasy dirt groove (312), the upper plane of this remittance greasy dirt groove (312) is lower than the described upper plane of straining greasy dirt plate (311), on the outer wall of the dirty cylinder of oil-collecting (3), be provided with an oil-collecting dirty cylinder wash water valve (33) and a remittance greasy dirt groove draining valve (34), oil-collecting dirty cylinder wash water valve (33) is positioned at the below of the short transverse of the dirty cylinder of oil-collecting (3), and communicate with the dirty chamber of described oil-collecting (31), and remittance greasy dirt groove draining valve (34) is positioned at the middle part of the short transverse of the dirty cylinder of oil-collecting (3), and communicate with remittance greasy dirt groove (312), wherein, strain between the bottom of greasy dirt plate (311) and the bottom in oil-collecting dirty cylinder chamber (31) and maintain space.

4. wastewater treatment equipment in rare earth preparation according to claim 1, it is characterized in that being provided with one for disclosing the liquid level indicating mechanism (45) of the liquid level of the acid-bearing wastewater in storage tank chamber (41) on described acid-bearing wastewater storage tank (4), this liquid level indicating mechanism (45) comprises liquid level float (451), float connection cord (452), connection cord slide guide wheel (453) and weight (454), liquid level float (451) is positioned at storage tank chamber (41), connection cord slide guide wheel (453) is arranged on the top side portion of acid-bearing wastewater storage tank (4), one end of float connection cord (452) is fixedly connected with liquid level float (451), the other end causes outside storage tank chamber (41) and is being fixedly connected with weight (454) after connection cord slide guide wheel (453), wherein: on the inwall in described storage tank chamber (41) and at the position corresponding to described liquid level float (451), be provided with a floater guiding limiting plate (411).

5. wastewater treatment equipment in rare earth preparation according to claim 1, it is characterized in that described Beng Ye mechanism (5) comprises pump liquid motor (51) and infusion pump (52), pump liquid motor (51) coordinates with infusion pump (52) transmission, and by infusion pump (52), together with pump liquid motor (51), be bearing in the terrace of field of employment or be arranged on the resting support on terrace, the infusion pump fluid inlet (521) of this infusion pump (52) is connected with the bottom of the tank wall of described rear class settler (2) and communicates with described rear class settler chamber (21), and the infusion pump liquid outlet (522) of infusion pump (52) is connected with the described the other end of described acid-bearing wastewater inlet tube (421).

6. wastewater treatment equipment in rare earth preparation according to claim 1, it is characterized in that the described follow-up oil removing of the sour water mechanism (7) that contains comprises a make-up tank cell body (71), containing sour water input tube (72), allotment acid solution output tube (73) and one group of stirring mechanism (74), make-up tank cell body (71) is arranged on terrace, containing the left end of sour water input tube (72) and the top on the right side of acid adjustment cell body (71) is connected and communicate with the cell body chamber (711) of make-up tank cell body (71), and containing sour water stability of flow mechanism (6), be connected with described containing the right-hand member of sour water input tube (72), and opening and closing valve (721) containing being provided with on the pipeline of sour water input tube (72), the right-hand member of allotment acid solution output tube (73) is connected with the bottom in the left side of make-up tank cell body (71) and communicates with cell body chamber (711), and the bottom of the left end of allotment acid solution output tube (73) and the short transverse of described water-and-oil separator (8) is connected, one group of stirring mechanism (74) is arranged on the support (712) at the top of being fixed on make-up tank cell body (71) with interval state, and be stretched in described cell body chamber (711), wherein: at the top of make-up tank cell body (71), be equipped with one for cell body chamber (711) being covered to the groove lid (713) protecting, on groove lid (713), be provided with for introducing the blender inlet tube (7131) of blender and be fixed with one for the air in cell body chamber (711) is caused to extraneous blow-down pipe (7132) in cell body chamber (711).

7. wastewater treatment equipment in rare earth preparation according to claim 6, it is characterized in that described one group of stirring mechanism (74) respectively comprises agitator motor (741), step-down gear (742), stir shaft (743) and stirring rake (744), agitator motor (741) connects with step-down gear (742) transmission, and be fixed on described support (712) together with agitator motor (741) by step-down gear (742), the upper end of stir shaft (743) is in transmission connection by adapter sleeve (7431) and the speed reducer output shaft (7421) of step-down gear (742), and the lower end of stir shaft (743) is being stretched in described cell body chamber (711) after described groove lid (713), stirring rake (744) is fixed on the described lower end of stir shaft (743).

8. wastewater treatment equipment in rare earth preparation according to claim 7, it is characterized in that top upper at described stir shaft (743) and that be positioned at described stirring rake (744) is provided with an anti-splashing disk (7432), this anti-splashing disk (7432) under use state corresponding to above the liquid level containing sour water described cell body chamber (711) in.

9. wastewater treatment equipment in rare earth preparation according to claim 1, acid solution described in it is characterized in that is drawn reuse mechanism (9) and is comprised that this goes out motor (91) and draws pump (92), draw motor (91) and draw pump (92) and connect, and be bearing on the terrace of field of employment together with drawing motor (91) by drawing pump (92), the pump feed liquor interface (921) of drawing of drawing pump (92) is connected with the bottom, left side of described water-and-oil separator (8) and communicates with water-and-oil separator (8), at this, draw and on pump feed liquor interface (921), be provided with a logical fluid valve (9211), drawing drawing of pump (92) pumps one end that liquid interface (922) draws reuse pipe (9221) with acid solution and is connected, and the other end that acid solution is drawn reuse pipe (9221) is connected with following the high liquid bath in the rare-earth extracting tank in Rare Earth Production workshop, and in acid solution, draw on the pipeline of reuse pipe (9221) and be provided with a reuse valve (92211), on the top of described water-and-oil separator (8), be provided with an oil extraction interface (81).