CN215586067U - Lifting mixing and stirring tank applied to CCD thickener - Google Patents
Lifting mixing and stirring tank applied to CCD thickener Download PDFInfo
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- CN215586067U CN215586067U CN202121621948.0U CN202121621948U CN215586067U CN 215586067 U CN215586067 U CN 215586067U CN 202121621948 U CN202121621948 U CN 202121621948U CN 215586067 U CN215586067 U CN 215586067U
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Abstract
The utility model discloses a lifting mixing stirring tank applied to a CCD thickener, which comprises a motor, a speed reducer, a coupling, a stirring shaft, an impeller, a stirring support bridge platform, a tank body, a baffle, a partition plate, an underflow inlet, an overflow inlet and a discharge hole; the motor is connected with the speed reducer, the speed reducer is connected with the stirring shaft through a coupler, and the stirring shaft is fixedly provided with an impeller; the baffle is vertically fixed on the inner wall of the groove body and is provided with an inclined plane with the direction opposite to the rotation direction of the impeller; the baffle is integrally annular and is horizontally fixed on the inner wall of the tank body; the impeller and the baffle plate have a vertical gap. The device of the utility model ensures that the multi-stage thickener does not need to be arranged in a step manner, thereby greatly reducing the construction difficulty and the construction cost; structural redundancy is avoided; the pipeline can be connected according to the requirement to carry out grade skipping washing, the requirement of expanding the grade number of the thickener can be easily realized, and the method is convenient, flexible, simple and feasible.
Description
Technical Field
The utility model belongs to the technical field of separation and washing of a CCD (charge coupled device) thickener, and particularly relates to a lifting mixing stirring tank applied to the CCD thickener.
Background
CCD counter-current washing is an important dense separation washing process. In modern metallurgical industry, hydrometallurgical processes are used to produce suspensions comprising residues from the leaching of ores and leach liquors. The residue is usually discharged as waste, and before discharge, the pulp is usually washed by a thickener by adopting a CCD continuous countercurrent washing process to recover useful components of liquid carried in underflow of the thickener. The thickener is an important device for CCD countercurrent washing.
At present, a CCD countercurrent washing thickener, overflow liquid of a rear stage enters a front stage CCD thickener through an overflow pump to be added as washing water, and in order to save investment cost and running cost, a certain height difference is needed between every two stages of thickeners, namely, the thickeners are required to be arranged in a stepped mode. However, the stepped thickener has the problems of high manufacturing cost, high construction difficulty, long construction period and the like.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention is expected to provide a lifting mixing stirring tank applied to a CCD thickener, which can arrange a CCD countercurrent washing thickener at the same height, has no height difference between each stage, does not use an overflow pump, can lift overflow water to a certain height, and simultaneously fully mix overflow water and incoming underflow pulp, so that the underflow pulp is diluted to an ideal solid-to-liquid ratio, thereby satisfying the process requirements and saving the investment cost and the operation cost.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a lifting mixing stirring tank applied to a CCD thickener comprises a stirring device, a stirring supporting bridge platform, a tank body, a baffle plate, a partition plate, an underflow inlet, an overflow inlet and a discharge outlet;
the stirring device comprises a motor, a speed reducer, a coupler, a stirring shaft and an impeller; the motor is connected with the speed reducer, the speed reducer is connected with the stirring shaft through a coupler, and the stirring shaft is fixedly provided with an impeller;
the motor is a stirring driving device and provides power for lifting the mixing stirring tank, and after transmission of the speed reducer, the shaft coupling drives the impeller on the stirring shaft to rotate so as to lift and mix.
The supporting bridge platform is fixedly arranged at the upper part of the groove body; the stirring device is vertically erected on the middle shaft of the tank body through a stirring support bridge platform; here, the supporting bridge platform plays a role in supporting and fixing the stirring device.
The baffle is vertically fixed on the inner wall of the groove body and is provided with an inclined plane with the direction opposite to the rotation direction of the impeller; thus, the rotary tangential flow of the mixed liquid in the tank body can be changed into radial flow and axial flow, and the shearing strength of the fluid can be greatly increased, so that the stirring effect is improved.
The baffle is integrally annular and is horizontally fixed on the inner wall of the tank body to divide the tank body into an upper mixing area and a lower isolation area; the annular part of the clapboard is equally divided by radial gaps, and a circular through hole is arranged in the middle of the clapboard;
the impeller is positioned right above the circular through hole; the aperture of the through hole is smaller than the rotating diameter of the impeller; the impeller and the baffle plate have a vertical gap;
here, the principle of pumping the overflow by the impeller is: the impeller in the tank body has the function similar to a centrifugal pump when rotating, the lower overflow is axially and upwards sucked into the tank body mixing area through the circular through hole and the radial gap by utilizing the suction distance, the underflow and the overflow are uniformly mixed under the stirring action of the impeller and are fully washed, and meanwhile, the mixed liquid obtains a certain initial speed at the edge of the impeller and is lifted to a certain height. Thus, the stirring function and the lifting function are realized, and the height of the mixed liquid level is lifted by 0.5-1.5 m.
In the above, the vertical gap between the impeller and the partition plate is the key to influence the lifting height, and can be adjusted according to actual needs.
The groove wall of the mixing area groove body is provided with a discharge hole and an underflow inlet, and the groove wall of the isolation area groove body is provided with an overflow inlet.
An underflow pump is additionally arranged, an underflow outlet of the preceding-stage CCD thickener is communicated with an underflow inlet of the lifting mixing and stirring tank through the underflow pump, and the underflow pump pumps the underflow of the preceding-stage CCD thickener into the lifting mixing and stirring tank;
the overflow inlet of the lifting mixing stirring tank is lower than the overflow outlet of the rear-stage CCD thickener, and the overflow of the rear-stage CCD thickener naturally flows into the lifting mixing stirring tank through the height difference without an external pump;
the discharge hole of the lifting mixing and stirring tank is communicated with the feed pipe of the rear-stage CCD thickener.
The bottom flow of the front stage CCD thickener and the overflow of the back stage CCD thickener are lifted and mixed in the stirring tank, the liquid level is lifted to be higher than the discharge port after the mixture is fully diluted and washed, and the mixed liquid enters the back stage CCD thickener through the discharge port and reaches the back stage CCD thickener for further sedimentation. Here, the underflow pump is model BW 4-4.
Further, the motor, the speed reducer and the coupling are positioned above the stirring support bridge platform, and the stirring shaft is positioned in the tank body below the stirring support bridge platform; the impeller is fixedly arranged at the tail end of the stirring shaft. The motor is a driving device and has the model of Y132M 2-6; the speed reducer is a transmission device; the impeller is a lifting mixing type stirring impeller.
Furthermore, the baffle is 4, and the adjacent interval 90 fixed settings in the cell internal wall avoids the mixed liquid to beat in the cell internal rotatoryly to improve the stirring and mixing effect.
Furthermore, a support rod is arranged below the partition plate, and the support rod is cylindrical and vertically and fixedly connected with the partition plate and the bottom surface of the tank body. Here, the bracing piece is used for supporting the baffle, prevents that the baffle pressure-bearing is too big fracture.
Further, the discharge hole is higher than the underflow inlet; the mixing zone tank body is also provided with a bottom flow inlet for grade skipping; the isolation area groove body is also provided with an overflow inlet and a standby port for grade jump.
Here, if the discharge port is lower than the underflow inlet, the insufficiently mixed underflow may directly enter the CCD thickener at the later stage, thereby affecting the washing effect.
Here, the spare port serves as a spare to facilitate connection of other pipes when needed.
Further, the lifting mixing stirring tank applied to the CCD thickener further comprises at least a front-stage CCD thickener and a rear-stage CCD thickener and an underflow pump, wherein an underflow outlet of the front-stage CCD thickener is communicated with an inflow port at the bottom of the lifting mixing stirring tank through the underflow pump, and an overflow inflow port and a discharge port are communicated with the rear-stage CCD thickener.
Further, the tank body is made of steel, plastic or FRP nonmetal materials.
Here, the number N of the CCD thickener stages is usually 3 to 5 or more, the CCD thickener and the elevating mixing and stirring tank are arranged alternately, and the number of the elevating mixing and stirring tank used is usually N. In such a way, the step arrangement of a CCD countercurrent washing thickener is avoided, the multistage thickeners can be arranged on the same height basis, the height difference between the multistage thickeners is zero, and the construction difficulty and the construction cost are reduced; because of promoting the mixing agitator tank and having the stirring mixing effect simultaneously, still remove the mixing tank before the configuration feeding from, not redundant.
In addition, the grade jump washing can be carried out, for example, in a factory, for the maintenance, the CCD3 thickener between the CCD2 thickener and the CCD4 thickener is stopped, and the CCD4 thickener is connected with a lifting mixing and stirring tank behind the CCD2 thickener by a pipeline, or the CCD2 thickener is connected with a lifting mixing and stirring tank in front of the CCD4, so that the grade jump washing is carried out.
Meanwhile, the number of stages of the CCD can be increased at any time according to needs, the thickener with the same height is built at a proper position, and the corresponding lifting mixing stirring tank and the underflow pump are additionally arranged, so that the requirement for expanding the number of stages of the thickener can be easily realized, and the method is convenient, flexible, simple and feasible.
The above-mentioned CCDN thickener represents an nth-stage thickener such as a CCD2 thickener, i.e., a 2 nd-stage thickener.
The working process of the lifting mixing and stirring tank is as follows:
1) the underflow is pumped into a 1 st-stage lifting mixing stirring tank by an underflow pump, the overflow of a CCD1 thickener naturally enters a tank body isolation area along the height difference through an overflow inlet of the 1 st-stage lifting mixing stirring tank, a motor is started, the motor drives a stirring shaft to rotate after being decelerated by a speed reducer, the stirring shaft drives an impeller arranged on the stirring shaft to rotate, the overflow is sucked by the impeller through a circular through hole and a gap and moves axially upwards, the overflow is fully mixed with the underflow in the tank body under the stirring action of the impeller, when the height of the mixed liquid level is lifted to a stirring tank discharge hole, the mixed liquid enters a CCD1 thickener through the discharge hole of the 1 st-stage lifting mixing stirring tank for sedimentation, and the overflow after sedimentation of the CCD1 thickener flows back to the stirring tank to wash the underflow.
2) The settled underflow of the CCD1 thickener is pumped into a 2 nd-stage lifting mixing stirring tank, the overflow of the CCD2 thickener enters a tank body through an overflow inlet of the 2 nd-stage lifting mixing stirring tank, is lifted and mixed by an impeller in the 2 nd-stage lifting mixing stirring tank, enters a CCD2 thickener through a discharge port for further settlement, and the overflow of the CCD2 thickener flows back to the 2 nd-stage stirring tank for further washing the underflow.
3) And pumping the settled underflow of the CCD2 thickener into a 3 rd-stage lifting mixing stirring tank, and repeating the steps backwards until the settlement of the last-stage thickener is finished, discarding the underflow, and obtaining the overflow which is the required product of the CCD countercurrent washing thickener.
The lifting mixing stirring tank has the stirring function and the lifting function, the lifting height can reach 1.5m, the lifting height is adjusted by adjusting the vertical gap between the impeller and the partition plate, a CCD countercurrent washing thickener does not need to be arranged in a stepped mode, and construction difficulty and cost are reduced. Besides the CCD countercurrent washing thickener, the method is also suitable for most instrument equipment groups with insufficient slurry self-flow height difference or small height difference and difficult pumping; in addition, the number of stages of the CCD countercurrent washing thickener can be increased or decreased according to the actual situation, and the adjustment is flexible.
The utility model has the following beneficial effects: 1) the stirring tank of the utility model enables the multi-stage thickener to be arranged on the same height basis, has zero height difference, does not need to arrange a CCD counter-current washing thickener in a step manner, and greatly reduces the construction difficulty and the construction cost; 2) the stirring tank has the functions of lifting, mixing and stirring, so that a mixing tank before the feeding of the original stepped thickener can be omitted, and the structural redundancy is avoided; 3) the stirring tank can be connected with a pipeline to carry out grade jump washing according to the requirement, or the requirement for expanding the grade number of the thickener can be easily realized by only building the thickener with the same height at a proper position and additionally arranging the corresponding lifting mixing stirring tank, so that the stirring tank is convenient, flexible, simple and feasible.
Drawings
FIG. 1 is a sectional view of a three-dimensional structure of a lifting mixing and stirring tank applied to a CCD thickener according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a lifting mixing agitator tank applied to a CCD thickener according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an embodiment of the present invention applied to a lifting mixing and stirring tank of a CCD thickener;
wherein, 1 is a motor, 2 is a speed reducer, 3 is a shaft coupling, 4 is a stirring shaft, 5 is an impeller, 6 is a stirring support bridge platform, 7 is a trough body, 8 is a baffle plate, 9 is a baffle plate, 10 is an underflow inlet, 11 is an overflow inlet, 12 is a discharge outlet, 13 is an overflow inlet for jump level, 14 is a spare port, 15 is a support rod, 16 is a circular through hole, 17 is an underflow inlet for jump level, 18 is a lifting mixing stirring tank, 19 is a feeding pipe of a rear-stage CCD thickener, 20 is a front-stage CCD thickener, and 21 is a rear-stage CCD thickener.
Detailed Description
So that the manner in which the features and aspects of the present invention can be understood in detail, a more particular description of the utility model, briefly summarized above, may be had by reference to embodiments, some of which are illustrated in the appended drawings.
Fig. 1 is a perspective sectional view of a lifting mixing stirring tank applied to a CCD thickener according to an embodiment of the present invention, and fig. 2 is a schematic sectional view of the lifting mixing stirring tank applied to the CCD thickener according to an embodiment of the present invention, as shown in fig. 1 and fig. 2, in this embodiment, a lifting mixing stirring tank applied to a CCD thickener includes a motor 1, a speed reducer 2, a coupler 3, a stirring shaft 4, an impeller 5, a stirring support bridge platform 6, a tank body 7, a baffle plate 8, a partition plate 9, an underflow inlet 10, an overflow inlet 11, a discharge port 12, an overflow inlet 13 for skip, a spare port 14, a support rod 15, a circular through hole 16, and an underflow inlet 17 for skip.
The motor 1 is connected with the speed reducer 2, the speed reducer 2 is connected with the stirring shaft 4 through the coupler 3, and the stirring shaft 4 is fixedly provided with the impeller 5;
here, motor 1 is the stirring drive arrangement, for promoting mixing the stirred tank and provide power, behind reduction gear 2 speed reduction transmission, makes shaft coupling 3 drive (mixing) shaft 4 on impeller 5 rotate, promotes the mixing work.
The supporting bridge platform 6 is fixedly arranged at the upper part of the groove body 7; the motor 1, the speed reducer 2 and the coupling 3 are vertically erected on a middle shaft of the tank body through a stirring support bridge platform 6; here, the supporting bridge platform 6 is used for supporting and fixing the stirring device.
The baffle 8 is vertically fixed on the inner wall of the tank body and is provided with an inclined plane with the direction opposite to the rotation direction of the impeller 5; therefore, the rotary tangential flow of the mixed liquid in the tank body can be changed into radial flow and axial flow, and the shear strength of the liquid can be greatly increased, so that the stirring effect is improved.
The baffle plate 9 is integrally annular and is horizontally fixed on the inner wall of the tank body to divide the tank body into an upper mixing area and a lower isolation area; the annular part of the clapboard 9 is equally divided by radial gaps, and a circular through hole 16 is arranged in the middle of the clapboard;
the impeller 5 is positioned right above the circular through hole 16; the aperture of the through hole is smaller than the rotating diameter of the impeller 5; the impeller 5 and the baffle plate 9 have a vertical gap;
here, the principle of pumping the overflow by the impeller 5 is: the impeller 5 in the tank 7 has the function similar to a centrifugal pump when rotating, the lower overflow is axially and upwards sucked into the tank mixing area through the circular through hole 16 and the radial gap by utilizing the suction distance, the underflow and the overflow are uniformly mixed under the stirring action of the impeller 5 and are fully washed, and meanwhile, the mixed liquid obtains a certain initial speed at the edge of the impeller 5 and is lifted to a certain height. Thus, the stirring function and the lifting function are realized, and the height of the mixed liquid level is lifted by 0.5-1.5 m.
In the above, the vertical gap between the impeller 5 and the partition plate 9 is a key that affects the lifting height, and can be adjusted according to actual needs.
The groove wall of the mixing zone groove body 7 is provided with a discharge hole 12 and an underflow inlet 10, and the groove wall of the isolation zone groove body is provided with an overflow inlet 11.
An underflow pump is additionally arranged, an underflow outlet of the preceding stage CCD thickener is communicated with an underflow inlet of the lifting mixing and stirring tank through the underflow pump, and the underflow pump pumps the underflow of the preceding stage CCD thickener into the lifting mixing and stirring tank;
the overflow inlet of the lifting mixing stirring tank is lower than the overflow outlet of the rear-stage CCD thickener, and the overflow of the rear-stage CCD thickener naturally flows into the lifting mixing stirring tank through the height difference without an external pump;
the discharge hole of the lifting mixing and stirring tank is communicated with the feed pipe of the rear-stage CCD thickener.
The bottom flow of the front stage CCD thickener and the overflow of the back stage CCD thickener are lifted and mixed in the stirring tank, the liquid level is lifted to be higher than the discharge port after the mixture is fully diluted and washed, and the mixed liquid enters the back stage CCD thickener through the discharge port and reaches the back stage CCD thickener for further sedimentation. Here, the underflow pump is model BW 4-4.
Further, the stirring shaft 4 is positioned in the tank body 7 below the stirring support bridge platform 6; the impeller 5 is fixedly arranged at the tail end of the stirring shaft 4. The motor 1 is a driving device and has the model of Y132M 2-6; the speed reducer 2 is a transmission device; the impeller 5 is a lifting mixing type stirring impeller.
Further, baffle 8 is 4, and the adjacent interval 90 fixed settings in the cell internal wall avoids the mixed liquid to beat in the cell internal rotatoryly to improve stirring and mixing effect.
Furthermore, 6 support rods 15 are further arranged below the partition plate 9, and the support rods 15 are cylindrical and vertically and fixedly connected with the partition plate 9 and the bottom surface of the groove body 7. Here, the support rods 15 are used for supporting the partition board 9 and preventing the partition board 9 from being excessively pressed and broken.
Further, the discharge port 12 is higher than the underflow inlet 10; the mixing zone tank body is also provided with a grade jump underflow inlet 17; the isolation area groove body is also provided with an overflow inlet 13 for level jump and a standby port 14.
Here, the overflow is the supernatant after separation by the thickener; the underflow is underflow liquid separated by the thickener.
Here, if the discharge port 12 is lower than the underflow inlet 10, the insufficiently mixed underflow may directly enter the CCD thickener of the later stage, thereby affecting the washing effect.
Here, the spare port 14 serves as a spare to facilitate connection of other pipes when needed.
Further, the lifting mixing stirring tank applied to the CCD thickener further comprises at least a front-stage CCD thickener and a rear-stage CCD thickener, an underflow outlet of the front-stage CCD thickener is communicated with an inflow port at the bottom of the lifting mixing stirring tank through the underflow pump, and an overflow inflow port and a discharge port are communicated with the rear-stage CCD thickener.
Further, the tank body 7 is made of steel, plastic or FRP nonmetal material.
Here, the number N of the CCD thickener stages is usually 3 to 5 or more, the CCD thickener and the elevating mixing and stirring tank are arranged alternately, and the number of the elevating mixing and stirring tank used is usually N. In such a way, the step arrangement of a CCD countercurrent washing thickener is avoided, the multistage thickeners can be arranged on the same height basis, the height difference between the multistage thickeners is zero, and the construction difficulty and the construction cost are reduced; because of promoting the mixing agitator tank and having the stirring mixing effect simultaneously, still remove the mixing tank before the configuration feeding from, not redundant.
In addition, the grade jump washing can be carried out, for example, in a factory, for the maintenance, the CCD3 thickener between the CCD2 thickener and the CCD4 thickener is stopped, and the CCD4 thickener is connected with a lifting mixing and stirring tank behind the CCD2 thickener by a pipeline, or the CCD2 thickener is connected with a lifting mixing and stirring tank in front of the CCD4, so that the grade jump washing is carried out.
Meanwhile, the number of stages of the CCD can be increased at any time according to needs, the thickener with the same height is built at a proper position, and the corresponding lifting mixing stirring tank and the underflow pump are additionally arranged, so that the requirement for expanding the number of stages of the thickener can be easily realized, and the method is convenient, flexible, simple and feasible.
The above-mentioned CCDN thickener represents an nth-stage thickener such as a CCD2 thickener, i.e., a 2 nd-stage thickener.
Fig. 3 is a schematic view of an application of a lifting mixing stirring tank applied to a CCD thickener according to an embodiment of the present invention, and as shown in fig. 3, the lifting mixing stirring tank includes a preceding stage CCD thickener 20, a lifting mixing stirring tank 18, and a succeeding stage CCD thickener 21. An underflow pump is further arranged between the preceding stage CCD thickener 20 and the lifting mixing stirring tank 18 and is used for pumping the underflow of the preceding stage CCD thickener 20 into the lifting mixing stirring tank 18 for stirring and lifting.
In this embodiment, the height difference between the front and rear two-stage thickeners is zero, the underflow outlet of the front stage CCD thickener 20 is located at the bottom of the thickener, and is lower than the underflow inlet of the lifting mixing agitation tank 18, and needs to be pumped by an underflow pump, and the overflow outlet of the rear stage CCD thickener 21 is higher than the overflow inlet of the lifting mixing agitation tank 18, so that the overflow can enter the agitation tank automatically, and after being lifted, mixed, diluted and washed sufficiently in the agitation tank, the lifting liquid level is higher than the discharge port, and the sufficiently stirred mixed liquid passes through the discharge port, and is fed through the feed pipe 19 of the rear stage CCD thickener, and reaches the rear stage CCD thickener 21 for further sedimentation.
The working process of the application embodiment of the utility model as shown in fig. 3 is as follows:
1) the underflow of the preceding stage CCD thickener 20 is pumped into the lifting mixing stirring tank 18 by an underflow pump, the overflow of the following stage CCD thickener 21 automatically flows into the lifting mixing stirring tank 18, a motor is started, the motor drives a stirring shaft to rotate after being decelerated by a decelerator, the stirring shaft drives an impeller arranged on the stirring shaft to rotate, the overflow is sucked by the impeller through a circular through hole and a gap and moves axially upwards, the overflow is fully mixed with the underflow in the tank body under the stirring action of the impeller, when the height of the mixed liquid level is lifted to a discharge port of the stirring tank, the mixed liquid enters the following stage CCD thickener 21 through a feeding pipe 19 of the following stage CCD thickener for sedimentation, the overflow after the sedimentation of the following stage CCD thickener 21 flows back to the stirring tank through an overflow inlet of the lifting mixing stirring tank 18 to be continuously stirred and washed.
2) And the underflow after the sedimentation of the rear-stage CCD thickener 21 enters a lifting mixing stirring tank of the next stage, and the like backwards according to the grade until the sedimentation of the last-stage thickener is finished, the underflow is discarded, and the overflow is the required product of the CCD countercurrent washing thickener.
The lifting mixing stirring tank has the stirring function and the lifting function, the lifting height can reach 1.5m, the lifting height is adjusted by adjusting the vertical gap between the impeller and the partition plate, a CCD countercurrent washing thickener does not need to be arranged in a stepped mode, and construction difficulty and cost are reduced. Besides the CCD countercurrent washing thickener, the method is also suitable for most instrument equipment groups with insufficient slurry self-flow height difference or small height difference and difficult pumping; in addition, the number of stages of the CCD countercurrent washing thickener can be increased or decreased according to the actual situation, and the adjustment is flexible.
The specific type of the above-mentioned devices is not limited and detailed, and the deep connection mode of the above-mentioned devices is not detailed, and can be understood by those skilled in the art as the common general knowledge.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (7)
1. A lifting mixing stirring tank applied to a CCD thickener is characterized by comprising a stirring device, a stirring supporting bridge platform, a tank body, a baffle, a partition plate, an underflow inlet, an overflow inlet and a discharge hole;
the stirring device comprises a motor, a speed reducer, a coupler, a stirring shaft and an impeller; the motor is connected with the speed reducer, the speed reducer is connected with the stirring shaft through a coupler, and the stirring shaft is fixedly provided with an impeller;
the supporting bridge platform is fixedly arranged at the upper part of the groove body; the stirring device is vertically erected on the middle shaft of the tank body through a stirring support bridge platform;
the baffle is vertically fixed on the inner wall of the groove body and is provided with an inclined plane with the direction opposite to the rotation direction of the impeller;
the baffle is integrally annular and is horizontally fixed on the inner wall of the tank body to divide the tank body into an upper mixing area and a lower isolation area; the annular part of the clapboard is equally divided by radial gaps, and a circular through hole is arranged in the middle of the clapboard;
the impeller is positioned right above the circular through hole; the aperture of the through hole is smaller than the rotating diameter of the impeller; the impeller and the baffle plate have a vertical gap;
the groove wall of the mixing area groove body is provided with a discharge hole and an underflow inlet, and the groove wall of the isolation area groove body is provided with an overflow inlet.
2. The lifting mixing stirring tank applied to the CCD thickener according to claim 1, wherein the motor, the speed reducer and the coupling are positioned above the stirring supporting bridge platform, and the stirring shaft is positioned in the tank body below the stirring supporting bridge platform; the impeller is fixedly arranged at the tail end of the stirring shaft; the impeller is a lifting mixing type stirring impeller.
3. The lifting mixing agitation tank applied to a CCD thickener according to claim 1, wherein the number of the baffles is 4, and the baffles are fixedly arranged at intervals of 90 degrees in the inner wall of the tank body.
4. The lifting mixing stirring tank applied to the CCD thickener according to claim 1, wherein a support rod is further arranged below the partition plate, and the support rod is cylindrical and vertically and fixedly connected with the partition plate and the bottom surface of the tank body.
5. The lifting mixing stirring tank applied to the CCD thickener is characterized in that the discharge port is higher than the underflow inlet; the mixing zone tank body is also provided with a bottom flow inlet for grade skipping; the isolation area groove body is also provided with an overflow inlet and a standby port for grade jump.
6. The lifting mixing stirring tank applied to the CCD thickener according to claim 1, further comprising at least a front CCD thickener and a rear CCD thickener, wherein the front CCD thickener is communicated with a bottom inlet of the lifting mixing stirring tank through the bottom flow pump, and the overflow inlet and the discharge outlet are communicated with the rear CCD thickener.
7. The lifting mixing stirring tank applied to the CCD thickener of claim 1, wherein the tank body is made of steel, plastic or FRP nonmetal material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121621948.0U CN215586067U (en) | 2021-07-16 | 2021-07-16 | Lifting mixing and stirring tank applied to CCD thickener |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121621948.0U CN215586067U (en) | 2021-07-16 | 2021-07-16 | Lifting mixing and stirring tank applied to CCD thickener |
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