A multi-stage overflow tank of hydrometallurgical wastewater from laterite nickel ore

Abstract

This application discloses a multistage overflow tank, including an intake tank and two overflow pool groups with two overflow outlet gates; each of which is arranged longitudinally at the first end of each of the other at the first end of the flow direction; each of the overflow pools includes two overflow pools arranged horizontally and connected at the bottom. This application through the pool join two overflow pool group, constitute two overflow path, each overflow path at the bottom and the overflow port, formed in the vertical level and horizontal level combined S-shaped channel, improve the effect of coagulation deposition, and can selectively close a overflow path, easy to clean, uninterrupted wastewater treatment.

Description

[0001] Description

[0002] A MULTI-STAGE OVERFLOW TANK OF HYDROMETALLURGICAL WASTEWATER FROM LATERITE NICKEL ORE

[0003] FILED OF DISCLOSURE

[0004] This application relates to the technical field of overflow treatment of metallurgical wastewater, and speci fically relates to a multistage overflow tank of wet metallurgical wastewater of laterite nickel ore .

[0005] BACKGROUND

[0006] Laterite nickel ore wet metallurgy process of wastewater need to be treated to discharge , waste water after manganese treatment , still contains a small amount of flocculation, the existing technology of more dense machine with flocculant treatment , due to the dense machine for fine solid particles and low content of wastewater treatment ef fect is poor, which leads to dense machine treatment of manganese wastewater is di f ficult to reach the sea standard .

[0007] SUMMARY

[0008] The purpose of this application is to overcome the above technical deficiencies , propose a multi-stage overflow tank for wet metallurgical wastewater of laterite nickel ore , and solve the technical problem of poor precipitation ef fect of dense machine on fine solid particles in the existing technology .

[0009] To achieve the above technical obj ectives , this application adopts the following technical solutions :

[0010] This application provides a multi-stage overflow tank for hydrometallurgical wastewater of laterite nickel ore , comprising :

[0011] Access pool , with two overflow outlet gates ; and

[0012] Two overflow pool groups , two in parallel , each comprises a plurality of overflow cells arranged longitudinally, each of which is connected at the first end of the flow direction; each of the overflow pools comprises two overflow cell bodies arranged laterally and connected at the bottom .

[0013] In some embodiments , the inlet pool includes an inlet tank body and a mixed tank body, the waste water inlet pipe , the bottom of the inlet body and the two overflow outlet gates located on adj acent sides of the mixing tank body .

[0014] In some embodiments , the intake tank also comprises an opening and closing mechanism disposed at the two overflow outlet gates for controlling the opening or closing of the corresponding overflow outlet gates .

[0015] In some embodiments , the wastewater inlet pipe is suspended through a support above the wastewater liquid level of the inlet tank body .

[0016] In some embodiments , the intake tank also includes a mixing mechanism built into the mixing tank .

[0017] In some embodiments , the opening and closing mechanism includes an expansion member and a gate body mounted on the inlet tank disposed at the expansion end and slideconnected within the overflow outlet gate with a position state of closing the overflow outlet gate and a position state out of the overflow outlet gate .

[0018] In some embodiments , the mixing mechanism comprises the mixing motor and the mixing motor are mounted on the intake tank, the mixing motor is mounted on the output shaft of the mixing motor and built into the mixing tank .

[0019] In some embodiments , each of the described groups of the overflow pool deviates from another group with an external valve connecting one end to the overflow cell and the other end to a drainage tank .

[0020] In some embodiments , one end of the drainage tank is connected with a drainage channel and the other end is connected with a return pipe .

[0021] In some embodiments , the isolation net is provided at the top of the overflow cell .

[0022] Compared with the existing technology, laterite nickel wet metallurgical wastewater stage overflow pool provided in this application, through the pool join two overflow pool group, constitute two overflow path, each overflow path at the bottom of the connected and the overflow mouth, have formed the S flow in vertical and horizontal level, improve the effect of coagulation deposition, and can selectively close a overflow path, easy to clean up, and uninterrupted wastewater treatment.

[0023] BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG. 1 is a schematic diagram of a multistage overflow tank of laterite nickel wet metallurgical wastewater provided by the embodiment of the present application;

[0025] FIG. 2 is a three-dimensional diagram of the structure of a multi-stage overflow tank of laterite nickel wet metallurgical wastewater provided by the embodiment of the present application;

[0026] FIG. 3 is a three-dimensional perspective view of a multistage overflow tank of laterite nickel ore hydrometallurgical wastewater provided by the embodiment of the present application;

[0027] FIG. 4 is a three-dimensional explosion diagram of a multistage overflow tank of laterite nickel wet metallurgical wastewater provided by the embodiment of the present application.

[0028] Note of the attached drawings:

[0029] 1, inlet pool; 11, inlet pool body; 12 mixing pool; 101, waste water inlet pipe; 102, overflow outlet gate; 2. overflow pool group; 21; 21; 201, connecting port; 202, overflow outlet; 3, opening and closing mechanism; 31, expansion parts; 32 gate body; 4, mixing mechanism; 41, mixing motor; 42, mixing propeller; 5, external valve; 6, drainage tank; 7, drainage channel; 8, reflux pipeline; 9.

[0030] DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

[0031] In order to make the purpose, technical scheme and advantages of the application more clear, the application is further explained in detail in combination with the drawings and embodiments . It should be understood that the speci fic embodiments described herein are used only to interpret the application and not to define the application .

[0032] In order to solve the concentration machine for solid particles fine and low content of wastewater precipitation ef fect of poor technical problems , this application provides a laterite nickel ore wet metallurgical wastewater multistage overflow pool , can reali ze the vertical level and hori zontal level of S-shaped channel , make the direction of water flow change , the particulate matter in the wastewater is easy to deposit when the current changes , improve the flocculation deposition ef fect .

[0033] It is to be noted that , in this application, the principle of wet metallurgical wastewater shall be applied to the treatment of wet metallurgical wastewater shall not be described here .

[0034] Refer to Figure 1-4 , FIG . 1 is the structural diagram of the laterite wet metallurgical wastewater in the embodiment of this application . The multistage overflow pool of the laterite wet metallurgical wastewater includes the intake pool 1 and two overflow pool groups 2 . The intake pool 1 has two overflow outlet gates 102 ; the two overflow pool groups 2 are arranged in parallel , each of the overflow pools 21 arranged longitudinally, and the overflow port 21 connected through the overflow port 202 are connected to the overflow outlet 102 in the water flow direction; each overflow pool 21 comprises two overflow cells 211 arranged laterally and connected at the bottom . Each overflow pool group 2 respectively form a overflow path, flocculant are precipitation at the bottom of the overflow pool , after a certain time , need to clean, the existing technology generally through arti ficial regular cleaning, and i f only design a path, regular cleaning need to stop overflow treatment , so the design two overflow lines , a overflow line work, another overflow line can be cleaned, two overflow lines share a pool , improve the utili zation of inlet pipe , flocculant inj ection pipeline . Each of the overflow tanks 21 includes two overflow cells 211 arranged laterally and connected at the bottom, And the bottom of the two overflow cells 211 is connected through a communication port 201 , An overflow port 202 is provided between the overflow tank body 211 of the same vertical column, Cooperate with the connecting port 201 , S-shaped flow on the vertical level , That is , the water flow at the top overflow, the bottom flow alternately; The discharge port 202 are arranged on the plurality of discharge cells 21 , S flow channel at the hori zontal level , From the left overflow pool body 211 to the right pool body, From the right overflow pool body 211 of the next overflow pool 21 to the left overflow pool body 211 , In turn, With the coordination of the S- shaped flow channels on two levels , An S-shaped flow channel connecting the vertical and hori zontal levels of the respective overflow tank bodies 211 is formed .

[0035] Understandably, the S-shaped design of the two levels can continuously change the direction of the water flow, and the particulate matter in the wastewater is easy to be deposited when the water flow changes , that is , when the fluid direction changes , the particulate matter reduces the speed under the action of inertia, and cannot maintain the same speed with the water flow, so as to achieve deposition . The method of this embodiment can ef fectively settle the fine particles in the manganese solution to reach the sea discharge standards . It is worth noting that after the manganese removal liquid of laterite nickel ore is treated by the multistage overflow tank of this embodiment , it needs to be discharged into the sea, so as to ensure that the nickel , cobalt , manganese , magnesium and other elements , ammonia nitrogen and COD in the discharge wastewater do not exceed the standard .

[0036] In one embodiment , refer to FIG . 1 , the inlet pool 1 includes the inlet body 11 and the mixing pool body 12 , the inlet body 11 connected with the waste water inlet pipe 101 , the bottom of the inlet body 11 , the two overflow outlet gates 102 on adj acent sides of the mixing body 12 , introduces the wastewater through the inlet body 11 and adds the flocculant mixing through the mixing pool body 12 , and then overflow to two overflow paths to perform subsequent overflow deposition of the overflow pool group . Further, refer to FIGS . 1 and 3 , where the waste water inlet pipe 101 is suspended above the waste water level of the inlet water body 11 so that the waste water inlet pipe 101 with the waste water level accumulated in the pool has a large impact to facilitate the f locculant and the subsequent level of overflow tank 21 .

[0037] Further, the inlet tank 1 also includes a mixing mechanism 4 where the mixing end is built in the mixing tank body 12 for mixing the inlet tank body 11 and adding the flocculant to promote the flocculation deposition and promote the full mixing of the wastewater and the flocculant to use the inlet water impact to achieve the purpose of flocculation and precipitation .

[0038] Speci fically, the mixing mechanism 4 includes a mixing motor

[0039] 41 and a mixing paddle 42 mounted to the corresponding mixing tank body 12 , the output shaft of the mixing motor 41 and embedded into the mixing tank body 12 to rotate the mixing motor

[0040] 42 by the mixing motor 41 to mix the waste water and flocculant .

[0041] Understandably, the two overflow lines share the inlet pool body 11 and the mixed pool body 12 to improve the utili zation rate of the inlet pipe , the flocculant inj ection pipe and the mixing structure .

[0042] In one embodiment , refer to FIGS . 3 and 4 , for control of the two overflow paths , the intake pool 1 also includes an opening and closing mechanism 3 , the opening and closing mechanisms 3 are respectively provided at the two outlet gates 102 for controlling the opening or closing of the corresponding outlet gates 102 . concrete , The opening and closing mechanism 3 includes an expansion member 31 and a gate body 32 , The telescopmember 31 is mounted on the mixing cell body 12 , The gate body 32 is disposed at the expansion end of the expansion member 31 , And slide the connection within the overflow water outlet gate 102 , With a position state of closing the overflow and outlet gate 102 , And the position state of the overflow outlet gate 102 , By the expansion of the expansion member 31 , To control the gate body 32 and li ft the overflow outlet gate 102 , And control the gate body 32 to descend and close the overflow outlet gate 102 , That is , the gate rises , Open the overflow, Reduce the shutdown overflow .

[0043] It is understandable that the telescopic member 31 may use the hydraulic cylinder telescopic rod to control the li fting and lowering of the gate body 32 .

[0044] In one embodiment , refer to FIG . 1 , each of the overflow pools 21 of the described overflow tank group 2 departing from the side of the other overflow tank group 2 is provided with an external valve 5 connecting one end connecting the overflow tank 21 and the other end to a drainage tank 6 so that the waste water from the overflow tank 21 is released and collected during cleaning .

[0045] Further, please refer to Figure 1 , in order to conduct diversion according to the ef fluent , the drainage channel 7 at one end and the reflux pipeline 8 connects the precipitated clean water into the drainage channel 7 , the wastewater with flocculation settling particles at the bottom of the overflow tank 21 and the precipitated particles at the bottom of the cleaning are discharged into the reflux pipeline 8 , which can be pumped back to other processes , such as upstream washing, waste residue treatment , etc .

[0046] Further, to facilitate the overflow tank 21 , the top of the inlet tank 1 .

[0047] To better understand the present application, The following is described in combination with FIGS . FIGS . 1 to 4 : from the water inlet body 11 with the waste water inlet pipe 101 , Initial mixing of the wastewater with the flocculant in the inlet tank body 11 , Then flows from the connection at the bottom of the pool to the mixed pool body 12 , Further mixing under the mixing of the stirring mechanism 4 ; The mixing tank body 12 has two overflow and outlet water gates 102 , corresponding, Both overflow and outlet water gates 102 are open, Corresponding to the two overflow routes , In the two overflow routes , All have four groups of overflow pools 21 , In the overflow cell 21 , with the cooperation of the bottom communication port 201 and the overflow port 202 , Form an S-shaped flow channel that combines the vertical and hori zontal levels , Perform the overflow and flocculation deposition, Finally, the discharge ; In needing to clean the overflow tank 21 , Close an overflow route by opening and closing mechanism 3 , Open the external valve 5 on the side of the overflow tank 21 on the overflow route , Through the drainage tank 6 to the corresponding pipe .

[0048] The speci fic embodiment of the present application described above does not constitute a limitation of the scope of protection of this application . Any other corresponding changes and deformation made in accordance with the technical conception of the application shall be covered within the protection of the claims of the application .

Claims

WHAT IS CLAIMED IS1 . A multistage overflow pool of wet metallurgical wastewater of laterite nickel ore , characteri zed by :Access pool , with two overflow and outlet water gates ; andTwo overflow pool groups , two in parallel , each comprises a plurality of overflow cells arranged longitudinally, each of which is connected at the first end of the flow direction; each of the overflow pools comprises two overflow cell bodies arranged laterally and connected at the bottom .2 . The multistage overflow pool of laterite nickel wet metallurgical wastewater according to claim 1 , wherein the inlet pool includes the inlet body and a mixed pool body, the inlet body is connected with the waste water inlet pipe , the bottom of the inlet body, and the two overflow outlet gates are located on adj acent sides of the mixing pool .3 . The multi-stage overflow tank of laterite wet metallurgical wastewater described in claim 2 , wherein the intake tank further comprises an opening and closing mechanism, two of which are respectively provided at the two overflow outlet gates to control the opening or closing of the corresponding overflow outlet gates4 . The multi-stage overflow tank of laterite nickel ore hydrometallurgical wastewater according to claim 3 , wherein the waste water inlet pipe is suspended above the wastewater liquid level of the inlet tank body .5 . The multi-stage overflow tank of laterite nickel ore hydrometallurgical wastewater according to claim 4 , wherein the intake tank further comprises a mixing mechanism with a mixing end built into the mixing tank .6 . The overflow tank in claim 5 , wherein the opening and closing mechanism comprises an expansion member and a gate body mountedon the inlet sink mounted at the expansion end of the expansion member and slidly connected within the overflow outlet gate , having a position state of closing the overflow outlet gate and departing from the position state of the overflow outlet gate .7 . The multistage overflow tank of laterite wet metallurgical wastewater according to claim 6 , wherein the mixing mechanism comprises a mixing motor and a mixing paddle mounted on the intake tank and the mixing paddle mounted on the output shaft of the mixing motor and built into the mixing tank .8 . The multi-stage overflow tank of laterite wet metallurgical wastewater according to claim 7 , wherein each of the sides of the overflow pool group is provided with a side of the external valve connecting one end to the overflow tank and the other end to a drainage tank .9 . The multistage overflow tank of laterite nickel ore hydrometallurgical wastewater according to claim 8 , characteri zed in that one end of the drainage tank is connected with a drainage channel and the other end is connected with a return pipe .10 . The multistage overflow tank of laterite nickel ore hydrometallurgical wastewater according to claim 9 , wherein the overflow tank is provided with a separation net .

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