CN209797631U - white carbon black waste liquid sedimentation separation device adopting precipitation method - Google Patents
white carbon black waste liquid sedimentation separation device adopting precipitation method Download PDFInfo
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- CN209797631U CN209797631U CN201920046289.9U CN201920046289U CN209797631U CN 209797631 U CN209797631 U CN 209797631U CN 201920046289 U CN201920046289 U CN 201920046289U CN 209797631 U CN209797631 U CN 209797631U
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Abstract
The utility model belongs to white carbon black waste liquid treatment field, concretely relates to sedimentation method white carbon black waste liquid sedimentation device. The device comprises a first settling chamber, wherein the upper part of the first settling chamber is a cube, and the lower part of the first settling chamber is an inverted trapezoid body; the top of the first settling chamber is provided with a waste liquid feeding port and a flocculating agent feeding port, the top of the first settling chamber is provided with a stirring device, the side wall of the first settling chamber is provided with a pipeline, and the pipeline is bent upwards in the cube; the pipeline extends into the upper part of the second settling chamber, the lower part of the side wall connected with the first settling chamber of the second settling chamber is provided with a liquid outlet, the inner side wall and the liquid outlet of the second settling chamber correspond to each other and are provided with a nano-scale filtering device, and the outside of the liquid outlet is connected with the liquid collecting chamber through the pipeline; first settlementAnd the bottoms of the chamber and the second settling chamber are also respectively provided with a waste liquid outlet. The utility model discloses a set up the flocculating agent entry, realize that multi-chambered, many times subside, with the SiO in the waste liquid2The particles are separated from the larger flocs, and the separation effect is excellent.
Description
Technical Field
The utility model belongs to white carbon black waste liquid treatment field, concretely relates to sedimentation method white carbon black waste liquid sedimentation device.
background
The white carbon black is porous substance and can be made of SiO2·nH20 represents that the main raw materials for producing the white carbon black by the precipitation method comprise quartz sand, calcined soda, industrial hydrochloric acid/sulfuric acid/nitric acid and the like. In the production process of the white carbon black, the reaction is finishedThe mother liquor is subjected to filter pressing to prepare white carbon black filter cakes, the white carbon black filter cakes are subjected to washing and desalting, and the processes are accompanied with fine SiO2The particles are immersed in the wastewater, the specific gravity of the particles is light, the particle size is small, direct sedimentation and precipitation are very difficult to treat, a better treatment method is not available at present, direct discharge is generally realized, and the waste and the environmental pollution are realized.
disclosure of Invention
The utility model aims at providing a precipitation method white carbon black waste liquid sedimentation device that separation effect is excellent.
In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: the settling and separating device for the precipitated white carbon black waste liquid comprises a first settling chamber, wherein the top of the first settling chamber extends downwards at least 2/3 to form a cube, the caliber of the first settling chamber is gradually reduced, and the lower part of the first settling chamber forms an inverted trapezoid;
The top of the first settling chamber is provided with a waste liquid feeding port and a flocculating agent feeding port, the top of the first settling chamber is also provided with a stirring device with a working end extending into the lower end of the trapezoid body, a pipeline with a switch and a first water pump is arranged on the side wall and the bottom end of the cube of the first settling chamber, and the pipeline is arranged in the cube in an upward bending manner and forms an included angle of 15-45 degrees with the side wall; the pipeline extends into the upper part of a second settling chamber, a liquid outlet with a switch is arranged at the lower part of the opposite side wall of the second settling chamber connected with the first settling chamber, a nano-scale filtering device matched with the liquid outlet is arranged at the corresponding position of the liquid outlet in the side wall of the second settling chamber, and the outside of the liquid outlet is connected with a liquid collecting chamber through a second water pump and the pipeline;
And a first waste liquid outlet and a second waste liquid outlet are also respectively arranged at the bottoms of the first settling chamber and the second settling chamber.
Preferably, a baffle plate with the same width as the second settling chamber is vertically and downwards arranged at the top of the second settling chamber and at a position close to the first settling chamber, and the shape of the baffle plate is the same as that of the longitudinal section of the corresponding position of the second settling chamber; millimeter-level sieve pores are densely distributed on the baffle.
Preferably, the bottom of the second settling chamber is horizontal or inclined towards the second waste liquid outlet; when the bottom is horizontal, the baffle is as high as the second settling chamber, and the second waste liquid outlet is positioned in an area enclosed by the baffle and the side wall of the second settling chamber; when the bottom inclines to second waste liquid outlet, baffle length is less than second settling chamber height, second waste liquid outlet is located the baffle below.
Preferably, the shape of the second settling chamber is the same as that of the first settling chamber, and the liquid outlet is positioned at the upper part of the trapezoid body of the second settling chamber or at the lower part of the cube of the second settling chamber.
Preferably, the second settling chamber is divided into a settling zone and a water purification zone in the horizontal direction, the settling zone is close to the first settling chamber, and the shape of the settling zone is the same as that of the first settling chamber; the water purification area is a right-angle trapezoid body, the bottom surface of the trapezoid body and the right side surface of the sedimentation area form a shared space of the two areas, and the right-angle surface of the trapezoid and the top of the sedimentation area form the top of the second sedimentation chamber; the liquid outlet is positioned at the lower part of the trapezoid inclined plane of the settling zone and the water purifying zone.
Preferably, the first waste liquid outlet is further connected with a waste liquid feeding port through a third water pump, a pipeline and a switch.
Preferably, the second waste liquid outlet is further connected with a waste liquid feeding port through a fourth water pump, a pipeline and a switch.
Preferably, the nano-scale filtration device is a ceramic membrane.
The utility model discloses following beneficial effect has: the utility model discloses a set up the flocculating agent entry, realize that multi-chambered, many times subside, with the SiO in the waste liquid2The particles are changed into larger flocculate and then separated, and the separation effect is far better than that of the prior simple multiple settling chambers.
drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third embodiment of the present invention;
Fig. 4 is a schematic structural diagram of a fourth embodiment of the present invention.
Detailed Description
As shown in figure 1, the settling and separating device for the precipitated silica white waste liquid comprises a first settling chamber 10, wherein the top of the first settling chamber 10 extends downwards to a height of at least 2/3 to form a cube, the caliber of the first settling chamber is gradually reduced, and the lower part of the first settling chamber forms an inverted trapezoid. It should be understood that the entire first settling chamber 10 is in the shape of a non-pointed cone; and the cubic area occupies above 2/3 the height of the first settling chamber 10.
And a waste liquid feeding port 11 and a flocculating agent feeding port 12 are arranged at the top of the first settling chamber 10. The top of the first settling chamber 10 is also provided with a stirring device 13 which is externally connected with a motor and the working end of which extends into the lower end of the trapezoid body. The stirring device 13 can select various stirring rods according to actual needs. It should be understood that the working end of the stirring device 13 extends into the lower end of the trapezoid, and does not mean that it only performs the stirring work at the lower end of the trapezoid, but that it performs the stirring work throughout the first settling chamber 10 up to the lower end of the trapezoid. During actual work, according to SiO in the white carbon black waste liquid2The actual content of the white carbon black waste liquid and the flocculating agent are correspondingly adjusted. The flocculating agent can be selected from polyacrylamide solution. In order to make the flocculated floccule settle to the bottom better, after the flocculating agent is added, a proper amount of high-specific-gravity water-insoluble SiO-insoluble flocculant can be added from a flocculating agent feeding port 122And reacted substances such as calcium carbonate, calcium oxide, calcium hydroxide, and the like.
And a pipeline with a switch and a first water pump 16 is arranged on the side wall of the first settling chamber 10 and at the bottom end of the cube, and the pipeline is bent upwards in the cube and forms an included angle of 15-45 degrees with the side wall. The switching of said piping is preferably arranged inside the first settling chamber 10. The pipe is bent upwards in the first settling chamber 10, so that the flocculated sediment at the lower part is prevented from being brought into a subsequent link during liquid pumping. The other end of the pipe extends into the upper portion of the second settling chamber 20 and the liquid subjected to the primary settling separation in the first settling chamber 10 is introduced into the second settling chamber 20.
more preferably, as shown in fig. 2, a baffle 27 having the same width as the second settling chamber 20 is vertically and downwardly disposed at the top of the second settling chamber 20 and near the first settling chamber 10, and the shape of the baffle 27 is the same as the shape of the longitudinal section of the second settling chamber 20 at the corresponding position; the baffle 27 is densely covered with millimeter-sized meshes. The bottom of the second settling chamber 20 is horizontal, the baffle 27 is equal to the second settling chamber 20 in height, and the second waste liquid outlet 25 is located in an area enclosed by the baffle 27 and the side wall of the second settling chamber 20 close to the first settling chamber 10. The second settling chamber 20 is connected with the first settling chamber 10, and a liquid outlet 21 with a switch is arranged at the lower part of the side wall opposite to the side wall. It should be understood that: baffle 27 sets up towards the pipeline of connecting two settling chambers, and baffle 27 and pipeline interval are nearer, and after the liquid that the pipeline will carry out after the primary sedimentation introduced second settling chamber 20, liquid subsides once more in second settling chamber 20, and great flocculation thing is blocked by baffle 27, sinks second settling chamber 20 bottom, just in time falls in the second waste liquid outlet 25 top of closing, is convenient for follow-up clearance to the flocculation thing.
Preferably, as shown in fig. 3, the second settling chamber 20 has the same shape as the first settling chamber 10, and the bottom thereof is inclined and gradually reduced from the two ends to the middle to form a second waste liquid outlet 25. The length of the baffle 27 is less than the height of the second settling chamber 20, the rest arrangement of the baffle 27 is the same as that in fig. 2, and the second waste liquid outlet 25 is positioned below the baffle 27. The liquid outlet 21 is located at the upper part of the trapezoid body of the second settling chamber 20 or at the lower part of the cube body of the second settling chamber 20. It should be understood that the baffle 27 does not completely close the second settling chamber 20, a gap is formed at the lower part of the second settling chamber 20, flocculates are mainly gathered at the lower part of the left side of the baffle 27, the liquid at the position where the liquid outlet 21 is arranged at the right side is relatively clear, and the flocculates at the right side can slide along the side wall of the second settling chamber 20 and are stacked above the second waste liquid outlet 25, so that the cleaning is more convenient.
More preferably, as shown in fig. 4, the second settling chamber 20 is divided into a settling zone and a water purifying zone in the horizontal direction, the settling zone is close to the first settling chamber 10, and the shape of the settling zone is the same as that of the first settling chamber 10; the water purifying area is a right-angle trapezoid, the bottom surface of the trapezoid and the right side surface of the settling area form a shared space of the two areas, and the right-angle surface of the trapezoid and the top of the settling area form the top of the second settling chamber 20; the liquid outlet 21 is positioned at the lower part of the trapezoid inclined plane of the settling zone and the water purifying zone. It should be understood that: the settling zone and the water purification zone are only used for convenience of illustration and are not actually treated in a physical structure in a distinguishing way. The bottom surface of the trapezoid body and the right side surface of the settling area do not exist actually, and the settling area and the water purifying area are located in the same area which is communicated in a space without barriers. With this embodiment, the flocs are less likely to reach the clear water zone and the liquid pumped from outlet 21 is relatively cleaner.
A nano-scale filtering device 22, preferably a nano-scale ceramic membrane (ceramic plate), adapted to the liquid outlet 21 is disposed in the side wall of the second settling chamber 20 at a position corresponding to the liquid outlet 21. The outside of the liquid outlet 21 is connected with a liquid collecting chamber 24 through a second water pump 23 and a pipeline.
The bottom of the first settling chamber 10 is further provided with a first waste liquid outlet 14, which is convenient for collecting the waste liquid containing flocculate. The more preferable scheme is as follows: the first waste liquid outlet 14 is also connected with the waste liquid feeding port 11 through a third water pump 15, a pipeline and a switch. The more preferable scheme is as follows: the second waste liquid outlet 25 is also connected to the waste liquid inlet 11 via a fourth water pump 26, a pipe and a switch. So that the collected waste liquid containing flocculate can be recovered and reused. Since two pipes are connected and part of the flocculate is contained in the pipes, a fifth water pump 17 can be additionally arranged near the waste liquid feeding port 11 in order to improve the water pumping power.
The utility model discloses a theory of operation does:
Keeping each switch, each feed inlet, each liquid outlet, each water pump and the like in a closed state, opening a waste liquid feed inlet 11, feeding waste liquid generated in the process of preparing white carbon black by a precipitation method, and according to SiO in the waste liquid2Calculating the amount of the flocculant, adding the flocculant and substances for increasing the specific gravity from a flocculant feeding port 12, starting a stirring device 13, uniformly mixing all the materials, stopping the stirring device 13, standing for a proper time for sedimentation, starting a first water pump 16 and a corresponding switch of a pipeline after the materials are fully reacted and settled, pumping the liquid after primary sedimentation into a second sedimentation chamber 20, standing for a proper time after liquid pumping is finished, and starting second waterthe pump 23 and the liquid outlet 21 are correspondingly opened and closed, and liquid after sedimentation is finished is pumped into the liquid collecting chamber 24. If flocs need to be used independently, each waste liquid outlet can be directly opened for collection, and single sedimentation separation is completed. Or the flocculate-containing waste liquid can be pumped back through a pipeline and fed again through the waste liquid feeding port 11 for recycling as required.
Claims (8)
1. The utility model provides a white carbon black waste liquid sedimentation separator of precipitation method which characterized in that: the device comprises a first settling chamber (10), wherein the top of the first settling chamber (10) extends downwards to a height of at least 2/3 to form a cube, the caliber of the first settling chamber is gradually reduced, and the lower part of the first settling chamber forms an inverted trapezoid body;
The top of the first settling chamber (10) is provided with a waste liquid feeding port (11) and a flocculating agent feeding port (12), the top of the first settling chamber (10) is also provided with a stirring device (13) with a working end extending into the lower end of the trapezoid body, the side wall of the first settling chamber (10), the bottom end of the cube are provided with a pipeline with a switch and a first water pump (16), and the pipeline is arranged in the cube in an upward bending manner and forms an included angle of 15-45 degrees with the side wall; the pipeline extends into the upper part of a second settling chamber (20), a liquid outlet (21) with a switch is arranged at the lower part of the opposite side wall of the second settling chamber (20) connected with the first settling chamber (10), a nano-scale filtering device (22) matched with the liquid outlet (21) is arranged at the corresponding position of the liquid outlet (21) in the side wall of the second settling chamber (20), and the outside of the liquid outlet (21) is connected with a liquid collecting chamber (24) through a second water pump (23) and the pipeline;
And a first waste liquid outlet (14) and a second waste liquid outlet (25) are respectively arranged at the bottoms of the first settling chamber (10) and the second settling chamber (20).
2. The settling and separating device for precipitated silica waste liquid according to claim 1, which is characterized in that: a baffle (27) with the same width as the second settling chamber (20) is vertically arranged downwards at the top of the second settling chamber (20) and at a position close to the first settling chamber (10), and the shape of the baffle (27) is the same as that of the longitudinal section of the corresponding position of the second settling chamber (20); millimeter-level sieve holes are densely distributed on the baffle plates (27).
3. The settling and separating device for precipitated silica waste liquid according to claim 2, which is characterized in that: the bottom of the second settling chamber (20) is horizontal or inclined towards a second waste liquid outlet (25); when the bottom is horizontal, the baffle (27) is as high as the second settling chamber (20), and the second waste liquid outlet (25) is positioned in an area enclosed by the baffle (27) and the side wall of the second settling chamber (20); when the bottom inclines to second waste liquid outlet (25), baffle (27) length is less than second settling chamber (20) height, second waste liquid outlet (25) are located baffle (27) below.
4. The settling and separating device for precipitated silica waste liquid according to claim 3, which is characterized in that: the shape of the second settling chamber (20) is the same as that of the first settling chamber (10), and the liquid outlet (21) is positioned at the upper part of the trapezoid body of the second settling chamber (20) or at the lower part of the cube body of the second settling chamber (20).
5. The settling and separating device for precipitated silica waste liquid according to claim 3, which is characterized in that: the second settling chamber (20) is divided into a settling area and a water purification area in the horizontal direction, the settling area is close to the first settling chamber (10), and the shape of the settling area is the same as that of the first settling chamber (10); the water purification area is a right-angle trapezoid body, the bottom surface of the trapezoid body and the right side surface of the sedimentation area form a shared space of the two areas, and the right-angle surface of the trapezoid and the top of the sedimentation area form the top of the second sedimentation chamber (20) together; the liquid outlet (21) is positioned at the lower part of the trapezoid inclined plane of the settling zone and the water purifying zone.
6. The settling and separating device for precipitated silica waste liquid according to claim 1, which is characterized in that: the first waste liquid outlet (14) is also connected with a waste liquid feeding port (11) through a third water pump (15), a pipeline and a switch.
7. the settling and separating device for precipitated silica waste liquid according to claim 1, which is characterized in that: the second waste liquid outlet (25) is also connected with a waste liquid feeding port (11) through a fourth water pump (26), a pipeline and a switch.
8. The settling and separating device for precipitated silica waste liquid according to claim 1, which is characterized in that: the nano-scale filtration device (22) is a ceramic membrane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920046289.9U CN209797631U (en) | 2019-01-11 | 2019-01-11 | white carbon black waste liquid sedimentation separation device adopting precipitation method |
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| CN201920046289.9U CN209797631U (en) | 2019-01-11 | 2019-01-11 | white carbon black waste liquid sedimentation separation device adopting precipitation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723567A (en) * | 2020-12-28 | 2021-04-30 | 中昊黑元化工研究设计院有限公司 | Rapid clarification device and method for white carbon black production wastewater by precipitation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112723567A (en) * | 2020-12-28 | 2021-04-30 | 中昊黑元化工研究设计院有限公司 | Rapid clarification device and method for white carbon black production wastewater by precipitation method |
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