CCD counter-current washing flocculant addition and dispensing device

Abstract

Disclosed in the present application is a CCD counter-current washing flocculant addition and dispensing device, comprising a barrel, a discharge pipe, a valve, a stirring mechanism and a monitoring mechanism, wherein the barrel is provided with a feed port and a discharge port; a first inlet of the discharge pipe is connected to the discharge port; the valve is disposed on the discharge pipe; the stirring mechanism comprises a first electric motor and a stirring rod, the first electric motor being disposed at the top of the barrel, and an output shaft of the first electric motor being connected to the stirring rod; and the monitoring mechanism comprises a circulation pipe, a first pump and a flow meter, an inlet of the first pump being in communication with the barrel, an outlet of the first pump being in communication with an inlet of the circulation pipe, an outlet of the circulation pipe being in communication with the barrel, and the flow meter being disposed on the circulation pipe. In the present application, a flocculant solution is stirred by the stirring rod, such that the flocculant is kept in a suspended state; by providing the circulation pipe, the flocculant solution can circulate, thereby reducing the possibility of flocculant precipitation and agglomeration; moreover, the flow meter can continuously monitor the flow rate, and coagulation and precipitation of the flocculant can be discovered in a timely manner.

Description

CCD counter-current washing flocculant adding and distributing device TECHNICAL FIELD

[0001] The present application relates to the technical field of laterite nickel ore processing, in particular to a CCD counter-current washing flocculant adding and distributing device. BACKGROUND

[0002] The thickener is the core equipment for liquid-solid separation in the laterite nickel ore hydrometallurgy process. In actual production, the clarification speed of the ore slurry in the thickener and the settling speed of the ore particles are largely dependent on the size of the ore particles in the ore slurry. Fine ore particles are in a colloidal or semi-colloidal state, and their settling speed in the solution is very slow, and they can even be in a suspended state for a long time. Therefore, a flocculant needs to be added during the settling process to make the dispersed fine ore particles aggregate into larger agglomerates, thereby accelerating the settling speed of the ore particles.

[0003] Chinese patent CN214436778U discloses a device for adding a flocculant to ore slurry in a quantitative manner, which includes an ore slurry pipeline, a perforated steel pipe is vertically installed through one end of the inside of the ore slurry pipeline, a valve is connected to one end of the perforated steel pipe through a connecting pipe, a flow meter is connected to the end of the valve away from the perforated steel pipe through a connecting pipe, a flocculant tank is connected to the end of the flow meter away from the valve through a connecting pipe, a direction adjusting assembly is installed at the connection between the perforated steel pipe and the connecting pipe, the direction adjusting assembly includes a direction adjusting motor, a fixed sleeve, a rotating sleeve, a driven gear and a driving gear, the fixed sleeve is sleeved on the outside of the end of the connecting pipe close to the perforated steel pipe, the rotating sleeve is sleeved on the outside of the end of the perforated steel pipe close to the connecting pipe, the driven gear is installed on the outside of the rotating sleeve, the driving gear is engaged with one side of the driven gear, and the direction adjusting motor is installed at one end of the middle of the driving gear.

[0004] The above device has the following defects: when the flocculant is stored in the flocculant tank, it is easy to appear precipitation and caking phenomenon, and if it cannot be found in time, it will affect the subsequent use and production efficiency.

[0005] SUMMARY

[0006] The present application aims to overcome the above technical deficiencies and provides a CCD counter-current washing flocculant adding and distributing device to solve the technical problem that the flocculant cannot be found in time when it appears coagulation and precipitation in the prior art.

[0007] To achieve the above technical purpose, the technical scheme of the present application provides a CCD counter-current washing flocculant adding and distributing device, which includes a barrel body, an inlet and an outlet are provided on the barrel body;

[0008] An outlet pipe is connected to the outlet;

[0009] A valve body is provided on the outlet pipe;

[0010] a stirring mechanism, the stirring mechanism comprising a first motor and a stirring rod, the first motor being arranged on the top of the barrel, an output shaft of the first motor penetrating through the top of the barrel and being connected with the stirring rod; and

[0011] a monitoring mechanism, the monitoring mechanism comprising a circulation pipe, a first pump body and a flow meter, an inlet of the first pump body being communicated with the bottom of the barrel, an outlet of the first pump body being communicated with an inlet of the circulation pipe, an outlet of the circulation pipe being communicated with the top of the barrel, the flow meter being arranged on the circulation pipe.

[0012] In some embodiments, the CCD countercurrent washing flocculant adding and distributing device further comprises a diluting mechanism, the diluting mechanism comprising a diluting pipe and a second pump body, an inlet of the second pump body being used for introducing supernatant after thickening of the thickener, an outlet of the second pump body being communicated with an inlet of the diluting pipe, an outlet of the diluting pipe being communicated with a second inlet of the discharge pipe, an outlet of the discharge pipe being communicated with an inlet of the thickener.

[0013] In some embodiments, the CCD countercurrent washing flocculant adding and distributing device further comprises a flushing mechanism, the flushing mechanism comprising a flushing pipe and a third pump body, an inlet of the third pump body being used for introducing high-pressure gas, an outlet of the third pump body being communicated with an inlet of the flushing pipe, an outlet of the flushing pipe being communicated with an outlet of the circulation pipe, a valve being arranged at the outlet of the circulation pipe.

[0014] In some embodiments, a check valve is arranged on the flushing pipe.

[0015] In some embodiments, a filter is arranged on the flushing pipe.

[0016] In some embodiments, the top and the bottom of the barrel are each provided with a pipe body, the circulation pipe is slidingly connected to the two pipe bodies, and a driving mechanism for driving the circulation pipe to vibrate is arranged on the barrel.

[0017] In some embodiments, an end of the circulation pipe is provided with a sealing layer, an outer side of the sealing layer abutting against the pipe body.

[0018] In some embodiments, the driving mechanism comprises a second motor arranged on the barrel, a cam and a lug, the cam being arranged on an output shaft of the second motor, the lug being arranged on the circulation pipe, the lug being used for intermittently contacting the cam, and a reset assembly for resetting the circulation pipe being arranged on the barrel.

[0019] In some embodiments, the reset assembly comprises a spring sleeved on the circulation pipe, one end of the spring being connected to the circulation pipe, and the other end of the spring being connected to the pipe body, when the spring is in a stretched state, the spring makes the circulation pipe have a tendency to slide towards the barrel.

[0020] In some embodiments, a plurality of discharge pipes are connected to the outlet of the discharge pipe for feeding flocculants to different positions of the feedwell of the thickener.

[0021] Compared with the prior art, the beneficial effects of the application include: the stirring rod continuously stirs the flocculant solution in the barrel, so that the flocculant always remains in a uniform suspended state; by providing a circulation pipe, the flocculant solution can continuously circulate, reducing the possibility of flocculant precipitation and caking; at the same time, the flow meter can continuously monitor the flow, so that when the flocculant precipitates and cokes, it can be discovered in time, improving the production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 is a schematic diagram of the overall structure of the flocculant adding and dispensing device provided by the application;

[0023] Fig. 2 is a schematic diagram of the overall structure of the thickener provided by the application.

[0024] BRIEF DESCRIPTION OF DRAWINGS:

[0025] 1, barrel; 11, feed inlet; 12, discharge outlet; 13, discharge pipe; 14, valve body; 15, adding pipe; 2, stirring mechanism; 21, first motor; 22, stirring rod; 23, pipe body; 24, sealing layer; 3, monitoring mechanism; 31, circulation pipe; 32, first pump body; 33, flow meter; 4, dilution mechanism; 41, dilution pipe; 42, thickener; 43, second pump body; 5, flushing pipe; 51, third pump body; 52, valve; 53, check valve; 54, filter; 6, driving mechanism; 61, second motor; 62, cam; 63, cam; 64, reset assembly; 641, spring. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the application more clear and explicit, the application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the application and not to limit the application.

[0027] The application provides a CCD countercurrent washing flocculant adding and dispensing device, which has the structure shown in Figs. 1-2 and includes a barrel 1, a discharge pipe 13, a valve body 14, a stirring mechanism 2 and a monitoring mechanism 3.

[0028] The barrel 1 is provided with a feed inlet 11 and a discharge outlet 12.

[0029] The first inlet of the discharge pipe 13 is connected to the discharge outlet 12.

[0030] The valve body 14 is arranged on the discharge pipe 13.

[0031] The stirring mechanism 2 comprises a first motor 21 and a stirring rod 22, the first motor 21 is arranged on the top of the barrel 1, the output shaft of the first motor 21 penetrates the top of the barrel 1 and is connected with the stirring rod 22.

[0032] The monitoring mechanism 3 comprises a circulating pipe 31, a first pump body 32 and a flow meter 33, the inlet of the first pump body 32 is communicated with the bottom of the barrel 1, the outlet of the first pump body 32 is communicated with the inlet of the circulating pipe 31, the outlet of the circulating pipe 31 is communicated with the top of the barrel 1, and the flow meter 33 is arranged on the circulating pipe 31.

[0033] In use, when the device starts to work, the first motor 21 starts to work. The output shaft of the first motor 21 drives the stirring rod 22 to rotate. The stirring rod 22 stirs the flocculant solution in the barrel 1 to make it mix uniformly, prevents the flocculant from precipitating and ensures that the flocculant is in a uniform suspension state in the barrel 1. The first pump body 32 pumps the flocculant solution at the bottom of the barrel 1 out and transports it to the circulating pipe 31 through a pipeline. The flocculant solution flows in the circulating pipe 31, and the flow meter 33 monitors the flow of the flocculant solution in the circulating pipe 31 in real time. Since the outlet of the circulating pipe 31 is communicated with the top of the barrel 1, the flocculant solution returns to the barrel 1 after flowing in the circulating pipe 31 once, forming a circulation. Through this circulation, not only the possibility of flocculant precipitation and caking can be reduced, but also the flow of the flocculant solution can be continuously monitored.

[0034] In this application, the stirring rod 22 continuously stirs the flocculant solution in the barrel 1, so that the flocculant always maintains a uniform suspension state; by arranging the circulating pipe 31, the flocculant solution can continuously circulate and flow, reducing the possibility of flocculant precipitation and caking; at the same time, the flow meter 33 can continuously monitor the flow, so that when the flocculant appears to be coagulated and precipitated, it can be found in time, improving the production efficiency.

[0035] In order to dilute the flocculant in advance, please refer to FIG. 2, in a preferred embodiment, the CCD countercurrent washing flocculant adding and distributing device further comprises a dilution mechanism 4, the dilution mechanism 4 comprises a dilution pipe 41 and a second pump body 43, the inlet of the second pump body 43 is used to pass into the supernatant after thickening of the thickener 42, the outlet of the second pump body 43 is communicated with the inlet of the dilution pipe 41, the outlet of the dilution pipe 41 is communicated with the second inlet of the discharge pipe 13, and the outlet of the discharge pipe 13 is communicated with the inlet of the thickener 42.

[0036] In use, when the flocculant in the discharge pipe 13 needs to be diluted, the second pump body 43 is started. The inlet of the second pump body 43 is connected with the supernatant in the thickener 42, and the supernatant in the thickener 42 is pumped out by the suction of the pump. The pumped-out supernatant enters the dilution pipe 41 through the outlet of the second pump body 43. The supernatant in the dilution pipe 41 mixes with the flocculant in the discharge pipe 13 at the second inlet of the discharge pipe 13. Due to the addition of the supernatant, the concentration of the flocculant in the discharge pipe 13 is reduced, and the dilution of the flocculant is realized. The diluted flocculant continues to enter the thickener 42 through the outlet of the discharge pipe 13 for a new round of solid-liquid separation and treatment process. On the one hand, it prevents the flocculant from being stationary in the discharge pipe 13 and reduces the possibility of blockage, and on the other hand, it can dilute the flocculant in advance to avoid deposition in the discharge pipe 13.

[0037] In order to flush the circulating pipe 31, please refer to FIG. 1. In a preferred embodiment, the CCD counter-current washing flocculant adding and distributing device further comprises a flushing mechanism, which comprises a flushing pipe 5 and a third pump body 51. The inlet of the third pump body 51 is used to introduce high-pressure gas, the outlet of the third pump body 51 is connected with the inlet of the flushing pipe 5, the outlet of the flushing pipe 5 is connected with the outlet of the circulating pipe 31, and the outlet of the circulating pipe 31 is provided with a valve 52.

[0038] In use, when the circulating pipe 31 is blocked, the circulating pipe 31 needs to be flushed. When the circulating pipe 31 needs to be flushed, the third pump body 51 is started. The high-pressure gas is sucked into the pump body from the inlet of the third pump body 51, and the third pump body 51 re-pressurizes the high-pressure gas and delivers it to the flushing pipe 5 through the outlet. Since the outlet of the flushing pipe 5 is connected with the outlet of the circulating pipe 31, the high-pressure gas enters the circulating pipe 31 under the action of pressure, and the high-pressure gas flows in the circulating pipe 31 to flush the inner wall of the circulating pipe 31. The high-pressure gas can flush away the flocculant, impurities or dirt that may be left in the circulating pipe 31, prevent these substances from accumulating in the circulating pipe 31, and affect the accuracy of the flow meter 33 and the normal operation of the device. The outlet of the circulating pipe 31 is provided with a valve 52, which can be adjusted as needed during flushing. The valve 52 can be closed to maintain a certain pressure of the high-pressure gas in the circulating pipe 31, thereby enhancing the flushing effect; or the valve 52 can be partially opened to allow the flushing water with impurities to flow out slowly for observation of the flushing condition.

[0039] In order to reduce the flocculant in the circulating pipe 31 from entering the flushing pipe 5, please refer to FIG. 1. In a preferred embodiment, a check valve 53 is installed on the flushing pipe 5.

[0040] In use, during the flushing process, if the pressure in the circulation pipe 31 is higher than the pressure in the flushing pipe 5, the check valve 53 will immediately close to prevent the water or the mixture containing impurities such as flocculants in the circulation pipe 31 from flowing back to the flushing pipe 5 and the second pump body 43, thereby protecting the second pump body 43 and the clean water source from pollution. The presence of the check valve 53 ensures that the clean water always flows in the predetermined direction from the flushing pipe 5 to the circulation pipe 31 for flushing, and there is no reverse flow, ensuring the effectiveness and stability of the flushing operation.

[0041] In order to improve the cleanliness of the water in the flushing pipe 5, please refer to Figure 1, in a preferred embodiment, the flushing pipe 5 is provided with a filter 54.

[0042] In use, the filter 54 provided on the flushing pipe 5 removes impurities in the clean water by filtering, improving the cleanliness of the flushing water.

[0043] In order to clean the blockage in the circulation pipe 31, please refer to Figure 1, in a preferred embodiment, the top and bottom of the bucket body 1 are provided with pipe bodies 23, the circulation pipe 31 is slidingly connected to the two pipe bodies 23, and the bucket body 1 is provided with a driving mechanism 6 for driving the circulation pipe 31 to vibrate.

[0044] In use, when blockage in the circulation pipe 31 is detected, the driving mechanism 6 is started. The circulation pipe 31 starts to vibrate under the action of the driving mechanism 6. By vibrating the circulation pipe 31, the particles and impurities can be loosened, avoiding the formation of stable accumulation on the inner wall of the circulation pipe 31, thereby reducing the risk of blockage.

[0045] In order to improve the air tightness between the circulation pipe 31 and the pipe body 23, please refer to Figure 1, in a preferred embodiment, the end of the circulation pipe 31 is provided with a sealing layer 24, and the outer side of the sealing layer 24 abuts against the pipe body 23.

[0046] In use, on the one hand, the outer side of the sealing layer 24 tightly abuts against the pipe body 23, forming a sealed barrier to prevent the solution from leaking from the connection between the circulation pipe 31 and the pipe body 23; on the other hand, the abutting action of the sealing layer 24 can also increase the connection stability between the circulation pipe 31 and the pipe body 23. When the circulation pipe 31 vibrates or is subjected to external force, the sealing layer 24 can play a buffering and damping role, reducing the loosening and wear of the connection part, prolonging the service life of the device.

[0047] To drive the circulation pipe 31 to move, please refer to Fig. 1, in a preferred embodiment, the driving mechanism 6 comprises a second motor 61 arranged on the barrel 1, a cam 62 arranged on the output shaft of the second motor 61, and a protrusion 63 arranged on the circulation pipe 31, the protrusion 63 is used to make intermittent contact with the cam 62, and the barrel 1 is provided with a reset assembly 64 for resetting the circulation pipe 31.

[0048] In use, when it is needed to drive the circulation pipe 31 to vibrate, the second motor 61 is started. The output shaft of the second motor 61 starts to rotate, driving the cam 62 to rotate together. With the rotation of the cam 62, the protruding part of the cam 62 gradually approaches and makes intermittent contact with the protrusion 63 on the circulation pipe 31. When the protruding part of the cam 62 contacts the protrusion 63, the cam 62 exerts a pushing force on the protrusion 63. Since the protrusion 63 is fixed on the circulation pipe 31, this pushing force is transmitted to the circulation pipe 31, making the circulation pipe 31 start to move against the force of the reset assembly 64. Under the pushing of the cam 62, the circulation pipe 31 slides and moves along the pipe body 23 at the top and bottom of the barrel 1. When the protruding part of the cam 62 rotates away from the protrusion 63, the reset assembly 64 starts to work. When the cam 62 no longer exerts a pushing force, the reset assembly 64 exerts a reverse pulling force or pressure on the circulation pipe 31, making the circulation pipe 31 move to the initial position.

[0049] To reset the circulation pipe 31, please refer to Fig. 1, in a preferred embodiment, the reset assembly 64 comprises a spring arranged on the circulation pipe 31, one end of the spring is connected to the circulation pipe 31, and the other end of the spring is connected to the pipe body 23. When the spring is in a stretched state, the spring makes the circulation pipe 31 have a tendency to slide towards the barrel 1.

[0050] When the device is in use, the spring is in a stretched state when the device is not started or the cam 62 is not in contact with the protrusion 63. One end of the spring is connected to the circulating pipe 31, and the other end is connected to the pipe body 23. Due to the pulling force of the spring, the circulating pipe 31 has a tendency to slide towards the barrel body 1. After the motor is started, the cam 62 rotates with the output shaft of the second motor 61. When the protruding part of the cam 62 is in contact with the protrusion 63 on the circulating pipe 31, the cam 62 exerts a pushing force on the protrusion 63, pushing the circulating pipe 31 to slide away from the barrel body 1 against the pulling force of the spring. The circulating pipe 31 gradually moves away from the barrel body 1 under the action of the cam 62, and the spring is further stretched. As the cam 62 continues to rotate, the protruding part of the cam 62 moves away from the protrusion 63. At this time, the pushing force of the cam 62 on the circulating pipe 31 disappears. Since the spring is in a stretched state, after the pushing force of the cam 62 disappears, the spring begins to contract, and the contraction force of the spring pulls the circulating pipe 31 to slide towards the barrel body 1, so that the circulating pipe 31 returns to the initial position or approaches the initial position. With the continuous operation of the second motor 61, the cam 62 is in intermittent contact and separation with the protrusion 63. Under the action of the pushing of the cam 62 and the resetting of the spring, the circulating pipe 31 continuously performs reciprocating motion, generating a vibration effect.

[0051] In order to improve the uniformity of the addition of flocculant, referring to Figure 1, in a preferred embodiment, a plurality of discharge pipes 15 are connected at the outlet of the discharge pipe 13 for adding flocculant to different positions of the feedwell of the thickener.

[0052] In use, the setting of multiple addition pipes 15 can make the flocculant more uniformly distributed in the thickener 42, improving the production quality.

[0053] In order to better understand the present application, the working principle of the technical scheme of a CCD countercurrent washing flocculant adding and distributing device 1 of the present application will be described in detail below in conjunction with Figures 1-2: When the device starts to operate, the first motor 21 is started. The output shaft of the first motor 21 drives the stirring rod 22 to rotate. The stirring rod 22 stirs the flocculant solution in the barrel body 1 to make it uniformly mixed, preventing the flocculant from precipitating and ensuring that the flocculant is in a uniform suspended state in the barrel body 1. The first pump body 32 pumps the flocculant solution at the bottom of the barrel body 1 to the circulating pipe 31 through the pipeline. The flocculant solution flows in the circulating pipe 31, and the flow meter 33 monitors the flow of the flocculant solution in the circulating pipe 31 in real time. Since the outlet of the circulating pipe 31 is connected to the top of the barrel body 1, the flocculant solution flows in the circulating pipe 31 for one cycle and then returns to the barrel body 1, forming a cycle. Through this cycle, not only can the possibility of flocculant precipitation and caking be reduced, but also the flow of the flocculant solution can be continuously monitored.

[0054] The specific implementation of the present application described above does not constitute a limitation on the protection scope of the present application. Any various other corresponding changes and modifications made according to the technical concept of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A CCD counter-current wash flocculant addition distribution device characterized by, The CCD countercurrent washing and flocculant adding and distributing device comprises a barrel, a feeding port and a discharging port arranged on the barrel, a discharging pipe, a valve, a stirring mechanism, and a monitoring mechanism. The CCD countercurrent washing and flocculant adding and distributing device further comprises a diluting mechanism, a flushing mechanism, and a plurality of discharging pipes. The CCD countercurrent washing and flocculant adding and distributing device further comprises a flushing mechanism. The flushing pipe is provided with a check valve. The flushing pipe is provided with a filter. The barrel is provided with a pipe body at the top and the bottom, the circulating pipe is slidably connected to the two pipe bodies, and the barrel is provided with a driving mechanism for driving the circulating pipe to vibrate.

2. A device for dispensing a flocculant into a CCD wash according to claim 1, wherein, The end of the circulating pipe is provided with a sealing layer, and the outer side of the sealing layer abuts against the pipe body.

3. A device for dispensing a flocculant into a CCD wash tank according to claim 1, wherein The driving mechanism comprises a second motor arranged on the barrel, a cam, and a protruding block, the cam is arranged on the output shaft of the second motor, the protruding block is arranged on the circulating pipe, the protruding block is used for intermittent contact with the cam, and the barrel is provided with a reset assembly for resetting the circulating pipe.

4. A device for dispensing a flocculant into a CCD wash according to claim 3, wherein, The reset assembly comprises a spring sleeved on the circulating pipe, one end of the spring is connected to the circulating pipe, and the other end of the spring is connected to the pipe body.

5. A device for dispensing a flocculant into a CCD according to claim 3, wherein The outlet of the discharging pipe is connected to the plurality of discharging pipes for feeding the flocculant to different positions of the feeding well of the thickener.

6. A device for dispensing a flocculant into a CCD wash according to claim 1, wherein, ​ 7. A device for dispensing a flocculating agent in a CCD counter current washing system according to claim 6, characterized in that ​ 8. A device for dispensing a flocculant into a CCD wash according to claim 6, wherein, ​ 9. A device for dispensing a flocculating agent in a CCD counter-current washing system according to claim 8, characterized in that ​ 10. A device for dispensing a flocculant into a CCD according to claim 1, wherein ​

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