Organic polymer flocculant dispersing device

Abstract

This invention relates to a dispersion device for organic polymer flocculants in the field of titanium dioxide production technology. The device includes a mixing tank and a stirring drive. The mixing tank has a feed hopper and a water inlet at the top and a discharge port at the bottom. Inside the mixing tank are a layered stirring assembly and a high-pressure longitudinal flushing device. The layered stirring assembly includes an upper stirring assembly and a lower stirring assembly. The lower stirring assembly is driven by the stirring drive, while the upper stirring assembly is rotatably connected to the mixing tank and can rotate coaxially with the lower stirring assembly via a connecting piece. The high-pressure longitudinal flushing device includes a high-pressure coil assembly and a guide assembly for guiding the high-pressure coil assembly to move spirally up and down along the mixing tank. This device can first stir the lower layer according to the liquid level, and then achieve coaxial operation of the upper and lower layers as needed. Utilizing high-pressure water as the driving force, it achieves comprehensive and efficient flushing of the mixing tank interior, improving the dispersion and performance of the organic polymer flocculant.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of titanium dioxide production, and particularly relates to a kind of organic macromolecular flocculants dispersion devices. BACKGROUND

[0002] In the process of purifying titanium liquid in sulfuric acid method titanium white, organic macromolecular flocculants (such as polyacrylamide) of a certain concentration need to be mixed in acidolysis slurry to effectively remove residues, colloids and part of soluble impurities in titanium liquid, so as to improve the quality and performance of titanium dioxide product. However, several problems often occur in the dispersion and preparation process of organic macromolecular flocculants, which directly affect the settling effect of titanium liquid and further lead to the decline of product quality.

[0003] Firstly, the current addition of organic macromolecular flocculants is directly in the top of the preparation tank, an opening is made, the bagged organic macromolecular flocculants are cut and directly placed on the opening, and the organic macromolecular flocculants are added into the preparation tank by free falling. However, the organic macromolecular flocculants are prone to moisture absorption and become sticky, which causes phenomena such as "clumping" and "uneven dispersion" in the addition process, and the dispersion effect is poor.

[0004] Secondly, the current preparation tank mostly uses one or two layers of coaxial paddle stirring. The wet stirring blades will adsorb a large amount of falling organic macromolecular flocculants from top to bottom, which is similar to moisture absorption. The flocculation group formed by moisture absorption is difficult to dissolve in a short time, and is also adhered to the inside of the preparation tank under the action of centrifugal force of the paddle, resulting in uneven dispersion of the organic macromolecular flocculants. It is worth noting that when double-layer stirring is used, the upper stirring will adsorb more organic macromolecular flocculants.

[0005] Thirdly, since the addition port of the flocculant in the preparation tank is in an open state, it is easy to be contaminated by other solid and liquid impurities on site, which makes the organic macromolecular flocculants have a strong pollution risk.

[0006] Fourthly, the preparation of organic macromolecular flocculants is a non-continuous process. After each use of the prepared organic macromolecular flocculants, the tank body can only be manually flushed at the opening, so that the moisture-absorbed flocculation group is difficult to be cleaned and removed, and will gradually accumulate in multiple cycles, affecting the dispersion effect and use effect.

[0007] Therefore, it is necessary to develop a new organic macromolecular flocculant dispersion device. SUMMARY

[0008] The purpose of the present application is to solve the above technical problems and provide an organic macromolecular flocculant dispersion device.

[0009] The technical scheme is as follows: an organic polymer flocculant dispersion device, comprising a stirring box and a stirring driving device, the top of the stirring box is provided with a feeding hopper and a water inlet, the bottom of the stirring box is provided with a discharge port, the discharge port is provided with a discharge valve, the stirring box is provided with a layered stirring assembly and a high-pressure longitudinal flushing device, the layered stirring assembly comprises an upper stirring assembly and a lower stirring assembly, the lower stirring assembly is in transmission connection with the stirring driving device, the upper stirring assembly is in rotation connection with the stirring box and can be coaxially rotated with the lower stirring assembly through a connecting piece, the high-pressure longitudinal flushing device comprises a high-pressure coil assembly and a guide assembly for guiding the high-pressure coil assembly to move spirally up and down in the stirring box, the guide assembly comprises a plurality of spiral guide grooves uniformly distributed on the inner wall of the stirring box and a sliding block slidingly connected in the corresponding spiral guide groove, the high-pressure coil assembly comprises a plurality of annular high-pressure water pipes coaxially arranged in the stirring box and having different diameters, each annular high-pressure water pipe is arranged on the same horizontal plane and does not interfere with the layered stirring assembly, a plurality of sliding blocks are correspondingly connected to the annular high-pressure water pipe of the outermost circle, a communication pipe is arranged between the two adjacent annular high-pressure water pipes, and a water inlet pipe is vertically arranged on one of the annular high-pressure water pipes, a plurality of high-pressure nozzles are uniformly arranged below each annular high-pressure water pipe, the top of the stirring box is provided with a circular-arc-shaped through hole in sliding connection with the water inlet pipe, the circular-arc-shaped through hole is matched with the arc-shaped movement track of the water inlet pipe during the working of the high-pressure longitudinal flushing device, and one end of the water inlet pipe extending out of the stirring box is connected with a high-pressure water supply hose, and the high-pressure water supply hose is provided with a pulse valve.

[0010] Preferably, the lower stirring assembly comprises a stirring shaft and stirring blades I arranged at the bottom of the stirring shaft, the stirring blades I are arranged close to the bottom of the stirring box and are used for efficiently stirring the material in the lower part of the stirring box.

[0011] Preferably, the upper stirring assembly comprises a stirring sleeve coaxially sleeved on the outer side of the upper part of the stirring shaft and stirring blades II arranged at the bottom of the stirring sleeve, the outer wall of the stirring sleeve is in rotation connection with the stirring box through a bearing, and a sliding gap is arranged between the inner wall of the stirring sleeve and the outer wall of the stirring shaft, the upper ends of the stirring shaft and the stirring sleeve are correspondingly provided with connecting through holes, and the connecting piece can be detachably connected in the connecting through holes. When the connecting piece is detached from the connecting through holes, only the lower stirring assembly can be driven to rotate by the stirring driving device after the stirring driving device is started, and when the connecting piece is arranged in the connecting through holes, the upper stirring assembly and the lower stirring assembly can be coaxially rotated.

[0012] Preferably, the connecting piece is a bolt or a pin shaft, which is convenient for installation and detachment.

[0013] Preferably, a power-assisted handle is arranged on the outer wall of the upper end of the stirring sleeve, the power-assisted handle is in a hollow pipe structure, the stirring sleeve can be rotated through the power-assisted handle, the connecting through holes on the stirring sleeve and the stirring shaft are aligned with each other, and the connecting piece can be conveniently arranged according to the need.

[0014] Preferably, the stirring driving device comprises a speed reducer and a gantry type motor support, the speed reducer is connected at the center of the top of the stirring box through the gantry type motor support, and the output shaft of the speed reducer slides through the gantry type motor support and is in transmission connection with the top end of the stirring shaft through a shaft coupling, for providing power for the stirring shaft.

[0015] Preferably, the top of the feeding hopper is openably and closably connected with a sealing cover, and a stop valve is arranged on the discharging pipe of the feeding hopper, which is beneficial to improve the sealing property of the feeding hopper and prevent the organic polymer flocculants in the feeding hopper from being humidified and caked.

[0016] Preferably, the side wall of the stirring box is provided with a liquid level meter and a transparent window, which is convenient for monitoring the liquid level in the stirring box.

[0017] Preferably, the bottom of the stirring box is provided with a universal wheel with a brake, which is convenient for flexible movement and fixation of the device.

[0018] The application also comprises other components capable of enabling the organic polymer flocculant dispersing device to be normally used, which are all conventional means in the field, and in addition, the devices or components not defined in the application, such as the stirring box, the discharging valve, the high-pressure nozzle, the pulse valve, the stirring blade one, the stirring blade two, the speed reducer, the sealing cover, the stop valve, the universal wheel and the like all adopt mature products in the prior art.

[0019] The working principle of the application is that, in use, the connecting piece is first disassembled, the upper stirring assembly and the lower stirring assembly are separated from each other, then clean water is added in the stirring box through the water inlet, so that the clean water covers the stirring blade one of the lower layer, the stirring driving device is started, the organic polymer flocculants are uniformly added in the stirring box through the feeding hopper, when the clean water covers the stirring blade two of the upper layer, the stirring driving device is stopped, and the upper stirring assembly and the lower stirring assembly are connected into a whole through the connecting piece, and the stirring driving device is started again, so that the upper stirring assembly and the lower stirring assembly rotate coaxially, thereby preventing the stirring blade two of the upper layer from adsorbing the organic polymer flocculants into groups in the initial stage of stirring, and the power of the upper and lower double-layer stirring can be fully utilized, so that the organic polymer flocculants are more uniformly dispersed. Through the setting of the high-pressure longitudinal flushing device, the pulse valve on the high-pressure water supply hose can be opened according to the need, the high-pressure water enters the annular high-pressure water pipe and is sprayed downward through the high-pressure nozzle, the annular high-pressure water pipe moves upward under the backflushing action of the high-pressure water spraying, and the annular high-pressure water pipe rotates in the rising process due to the guiding action of the spiral guide groove and the circular-arc-shaped through hole, so as to improve the effective spraying interval of the high-pressure nozzle and realize the high-efficiency cleaning of the inner wall of the stirring box and the layered stirring assembly, thereby further ensuring the dispersion effect and use effect of the organic polymer flocculants.

[0020] Compared with the prior art, the device can first stir the lower layer according to the liquid level, and then realize coaxial operation of the upper and lower layers according to the need, and the upper and lower layer stirring is driven by the same stirring driving device, so that the structure is simple, the operation is convenient, in addition, the novel high-pressure longitudinal flushing device is arranged, high-pressure water is used as driving force, full-range efficient flushing of the inside of the stirring box is realized, and the dispersion effect and use effect of the organic polymer flocculant are improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present application in the embodiment.

[0022] Figure 2 It is a schematic diagram of the overall structure of the present application in the embodiment. Figure 1

[0023] Figure 3 It is a schematic diagram of the overall structure of the present application in the embodiment. Figure 1

[0024] Figure 4 It is a schematic diagram of the overall structure of the present application in the embodiment. Figure 1

[0025] Figure 5 It is a schematic diagram of the overall structure of the present application in the embodiment.

[0026] Figure 6 It is a schematic diagram of the overall structure of the present application in the embodiment. DETAILED DESCRIPTION

[0027] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0028] Embodiment:

[0029] As Figures 1 to 6 ​​​As shown, the organic polymer flocculant dispersion device provided by the embodiment comprises a stirring box 1 and a stirring driving device, the top of the stirring box 1 is provided with a feeding hopper 2 and a water inlet 3, the bottom is provided with a discharge port 4, the top of the feeding hopper 2 is hingedly connected with a sealing cover 5, a stop valve 6 is arranged on the discharging pipe of the feeding hopper 2, a liquid level meter 8 and a transparent window (not shown in the figure) are arranged on the side wall of the stirring box 1, the discharge port 4 is provided with a discharge valve, the stirring box 1 is provided with a layered stirring assembly and a high-pressure longitudinal flushing device, the layered stirring assembly comprises an upper stirring assembly and a lower stirring assembly, the lower stirring assembly is in transmission connection with the stirring driving device, the upper stirring assembly is in rotation connection with the stirring box 1 and can rotate coaxially with the lower stirring assembly through a connecting piece 9, the connecting piece 9 is a bolt, facilitating installation and disassembly. The high-pressure longitudinal flushing device comprises a high-pressure coil assembly and a guide assembly for guiding the high-pressure coil assembly to move spirally up and down in the stirring box 1, the guide assembly comprises two spiral guide grooves 10 uniformly arranged on the inner wall of the stirring box 1 and two sliding blocks 11 slidingly connected in the corresponding spiral guide grooves 10, the high-pressure coil assembly comprises three annular high-pressure water pipes 12 coaxially arranged in the stirring box 1 and having different diameters, each annular high-pressure water pipe 12 is arranged on the same horizontal plane and does not interfere with the layered stirring assembly, the two sliding blocks 11 are correspondingly connected to the annular high-pressure water pipe 12 at the outermost position, a communication pipe 13 is arranged between the two adjacent annular high-pressure water pipes 12, and a water inlet pipe 14 is vertically arranged on one of the annular high-pressure water pipes 12, a plurality of high-pressure nozzles 15 are uniformly arranged below each annular high-pressure water pipe 12, the top of the stirring box 1 is provided with a circular-arc-shaped through hole 16 in sliding connection with the water inlet pipe 14, the circular-arc-shaped through hole 16 is matched with the arc-shaped movement track of the water inlet pipe 14 during the working of the high-pressure longitudinal flushing device, one end of the water inlet pipe 14 extending out of the stirring box 1 is connected with a high-pressure water supply hose 17, and a pulse valve 18 is arranged on the high-pressure water supply hose 17.

[0030] Specifically, the lower stirring assembly comprises a stirring shaft 19 and stirring blades I 20 arranged at the bottom of the stirring shaft 19, which are arranged close to the bottom of the stirring box 1 and used for high-efficiency stirring of the material in the lower part of the stirring box 1. The upper stirring assembly comprises a stirring sleeve 21 coaxially sleeved on the outer side of the upper part of the stirring shaft 19 and stirring blades II 22 arranged at the bottom of the stirring sleeve 21. The outer wall of the stirring sleeve 21 is rotationally connected with the stirring box 1 through a bearing, and a sliding gap is arranged between the inner wall of the stirring sleeve 21 and the outer wall of the stirring shaft 19. The upper ends of the stirring shaft 19 and the stirring sleeve 21 are correspondingly provided with a connecting through hole 23, and a connecting piece 9 is detachably connected in the connecting through hole 23. When the connecting piece 9 is detached from the connecting through hole 23, only the lower stirring assembly can be driven to rotate by the stirring driving device. When the connecting piece 9 is installed in the connecting through hole 23, the upper stirring assembly and the lower stirring assembly can be coaxially rotated. A power-assisted handle 24 is arranged on the upper end of the outer wall of the stirring sleeve 21. The power-assisted handle 24 is a hollow pipe structure. By rotating the power-assisted handle 24, the connecting through hole 23 of the stirring sleeve 21 and the stirring shaft 19 can be aligned with each other, so that the connecting piece 9 can be conveniently installed according to the requirement.

[0031] In this embodiment, the stirring driving device comprises a speed reducer 25 and a gantry motor support 26. The speed reducer 25 is connected at the center of the top of the stirring box 1 through the gantry motor support 26, and the output shaft of the speed reducer 25 slides through the gantry motor support 26 and is drivingly connected with the top end of the stirring shaft 19 through a shaft coupling 27, so as to provide power for the stirring shaft 19.

[0032] As a further improvement of this embodiment, the bottom of the stirring box 1 is provided with a universal wheel 7 with a brake, so as to facilitate flexible movement and fixation of the device.

[0033] It should be noted that, in this embodiment, the annular high-pressure water pipe 12, the communication pipe 13 and the water inlet pipe 14 are all stainless steel pipes, so as to ensure the strength and corrosion resistance of these components and prolong the service life of the device. The sliding block 11 is made of wear-resistant stainless steel, which is beneficial to prolong the wear resistance of the sliding block 11 and improve the service life of the device.

[0034] The working principle of this invention is as follows: In use, first, disconnect the connector 9 to separate the upper and lower stirring components. Then, add clean water to the mixing tank 1 through the water inlet 3 until the water covers the lower stirring blade 20. Start the reduction motor 25 and add organic polymer flocculant to the mixing tank 1 at a uniform speed through the feed hopper 2. When the clean water covers the upper stirring blade 22, stop the reduction motor 25 and connect the upper and lower stirring components together through the connector 9. Start the reduction motor 25 again to make the upper and lower stirring components rotate coaxially. This prevents the upper stirring blade 22 from adsorbing the organic polymer flocculant and forming clumps in the early stage of stirring, and also makes full use of the power of the upper and lower double-layer stirring, so that the organic polymer flocculant is dispersed more evenly. By setting up a high-pressure longitudinal flushing device, the pulse valve 18 on the high-pressure water supply hose 17 can be opened as needed. After the high-pressure water enters the annular high-pressure water pipe 12, it is sprayed downwards through the high-pressure nozzle 15. The annular high-pressure water pipe 12 moves upwards under the backflow action of the high-pressure water jet. Due to the guiding effect of the spiral guide groove 10 and the arc-shaped through hole 16, the annular high-pressure water pipe 12 rotates during the upward process, thereby increasing the effective spraying range of the high-pressure nozzle 15 and achieving efficient cleaning of the inner wall of the mixing tank 1 and the layered mixing components. This further ensures the dispersion effect and application effect of the organic polymer flocculant.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An organic polymer flocculant dispersion device, comprising a mixing tank and a mixing drive device, wherein the mixing tank is provided with a feed hopper and a water inlet at the top and a discharge port at the bottom, and the discharge port is provided with a discharge valve, characterized in that: The mixing tank is equipped with a layered mixing assembly and a high-pressure longitudinal flushing device. The layered mixing assembly includes an upper mixing assembly and a lower mixing assembly. The lower mixing assembly is driven by a mixing drive device. The upper mixing assembly is rotatably connected to the mixing tank and can rotate coaxially with the lower mixing assembly through a connector. The high-pressure longitudinal flushing device includes a high-pressure coil assembly and a guide assembly for guiding the high-pressure coil assembly to move spirally up and down along the mixing tank. The guide assembly includes several spiral guide grooves evenly distributed on the inner wall of the mixing tank and sliders slidably connected in the corresponding spiral guide grooves. The high-pressure coil assembly includes several annular high-pressure water pipes with different diameters, coaxially arranged with the mixing tank. Each annular high-pressure water pipe is located on the same horizontal plane and does not interfere with the layered mixing assembly. Several sliders are correspondingly connected to the outermost annular high-pressure water pipe. A connecting pipe is provided between two adjacent annular high-pressure water pipes, and one of the annular high-pressure water pipes... A vertical water inlet pipe is installed at the top, and several high-pressure nozzles are evenly distributed below each annular high-pressure water pipe. The top of the mixing tank is provided with an arc-shaped through hole that slides through the water inlet pipe. The arc-shaped through hole is matched with the arc-shaped movement trajectory of the water inlet pipe when the high-pressure longitudinal flushing device is working. One end of the water inlet pipe extending outside the mixing tank is connected to a high-pressure water supply hose, and a pulse valve is installed on the high-pressure water supply hose. The lower mixing assembly includes a mixing shaft and a first mixing blade located at the bottom of the mixing shaft. The first mixing blade is located near the bottom of the mixing tank. The upper mixing assembly includes a mixing sleeve coaxially sleeved on the upper outer side of the mixing shaft and a second mixing blade located at the bottom of the mixing sleeve. The outer wall of the mixing sleeve is rotatably connected to the mixing tank through a bearing, and a sliding gap is provided between the inner wall of the mixing sleeve and the outer wall of the mixing shaft. The upper ends of the mixing shaft and the mixing sleeve are respectively provided with connecting through holes, and a connecting piece is detachably connected in the connecting through holes.

2. The organic polymer flocculant dispersion device according to claim 1, characterized in that: The connecting component is a bolt or a pin.

3. The organic polymer flocculant dispersion device according to claim 2, characterized in that: The stirring sleeve is provided with an assist handle on the upper outer wall, and the assist handle is a hollow tube structure.

4. An organic polymer flocculant dispersion device according to any one of claims 1 to 3, characterized in that: The stirring drive device includes a geared motor and a gantry-type motor bracket. The geared motor is connected to the center of the top of the mixing tank through the gantry-type motor bracket, and the output shaft of the geared motor slides through the gantry-type motor bracket and is connected to the top of the stirring shaft through a coupling.

5. The organic polymer flocculant dispersion device according to claim 1, characterized in that: The top of the feed hopper is connected to a sealing cover that can be opened and closed, and the feed hopper's discharge pipe is equipped with a shut-off valve.

6. The organic polymer flocculant dispersion device according to claim 1, characterized in that: The mixing tank is equipped with a level gauge and a transparent viewing window on its side wall.

7. The organic polymer flocculant dispersion device according to claim 1, characterized in that: The bottom of the mixing tank is equipped with casters with brakes.

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