Sewage treatment pipeline and sewage treatment system for titanium dioxide production

Abstract

The application discloses a kind of sewage treatment pipeline and sewage treatment system for titanium dioxide production, it is related to sewage pipeline technical field.This kind of sewage treatment pipeline for titanium dioxide production, including pipeline body, the pipeline body includes mutually intercommunicating setting liquid inlet pipe, elbow and liquid outlet pipe, the pipeline body further includes the anti-blocking mechanism being arranged on elbow;The anti-blocking mechanism includes the installation pipe being communicated with elbow corner, the rotating roller being arranged in installation pipe and the first drive component for driving rotating roller to rotate.This kind of sewage treatment pipeline and sewage treatment system for titanium dioxide production, the sewage after titanium dioxide production is entered into elbow by liquid inlet pipe, and is discharged by liquid outlet pipe, when sewage enters into elbow, can drive rotating roller and cleaning head to rotate under the action of first drive component, can automatically clean the corner of elbow, and, can form local turbulent flow scouring flow at elbow corner, further reduce the probability of jam.

Description

Technical Field

[0001] This invention relates to the field of sewage pipeline technology, specifically to a sewage treatment pipeline and sewage treatment system for titanium dioxide production. Background Technology

[0002] Wastewater generated during the production of titanium dioxide needs to be transported through sewage treatment pipelines. In order to ensure stable pipeline transportation and extend equipment life, solid impurities in the titanium dioxide wastewater usually need to be filtered before transportation.

[0003] However, when existing wastewater treatment pipelines used in titanium dioxide production are in use, submicron-sized TiO2 powder and colloidal metatitanic acid particles still remain in the wastewater. At bends in the pipes, sudden changes in fluid flow direction can lead to a decrease in local flow velocity and turbulence. These fine particles will settle due to kinetic energy decay, and at the same time, van der Waals forces and electrostatic attraction between particles will cause them to agglomerate, forming flocculent deposits. Over time, these deposits will gradually clog the bends, affecting the efficiency and effectiveness of the transport. Summary of the Invention

[0004] The purpose of this invention is to provide a wastewater treatment pipe for titanium dioxide production that can self-clean the bends and corners of wastewater treatment pipes, thereby solving the problem of easy blockage at the bends of wastewater treatment pipes mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a wastewater treatment pipeline for titanium dioxide production, comprising a pipeline body, wherein the pipeline body includes an inlet pipe, a bend pipe, and an outlet pipe that are interconnected, and the pipeline body further includes an anti-clogging mechanism disposed on the bend pipe; the anti-clogging mechanism includes an installation pipe communicating with the bend pipe corner, a rotating roller disposed within the installation pipe, and a first driving component for driving the rotating roller to rotate; the anti-clogging mechanism further includes multiple cleaning heads connected to the side wall of the rotating roller.

[0006] Preferably, the first drive assembly includes a sealing plate detachably connected to both ends of the mounting tube, a rotating shaft connected to both ends of the rotating roller, and a detection assembly for detecting the rotation of the rotating shaft; the sealing plate is sleeved on the side wall of the rotating shaft; the first drive assembly also includes a plurality of blades connected to the rotating roller.

[0007] Preferably, the detection component includes scale markings disposed on the side wall of the rotating shaft and a vision sensor connected to the sealing plate.

[0008] Preferably, the anti-clogging mechanism further includes a flushing assembly for flushing the bend; the flushing assembly includes a flushing pipe connected to the installation pipe and a solenoid valve connected to the flushing pipe.

[0009] Preferably, the pipe body further includes a preheating mechanism; the preheating mechanism includes a plurality of heat exchange shrouds connected to the pipe body; the preheating mechanism also includes a connecting pipe connecting two adjacent heat exchange shrouds and an air inlet pipe and an exhaust pipe connected to the heat exchange shrouds.

[0010] A wastewater treatment system for titanium dioxide production includes a stripping tower. The stripping tower includes a tower body, a packing plate assembly, a gas phase outlet, and multiple nozzles. The gas phase outlet is connected to an inlet pipe via a second connecting pipe. The wastewater treatment system also includes a wastewater treatment pipeline for titanium dioxide production. The stripping tower further includes an adjustment mechanism connecting the nozzles and the outlet pipe. The outlet pipe extends through the tower body. The adjustment mechanism includes an annular cover connected to the outlet pipe, a rotating disk rotating within the annular cover, and a second drive assembly for driving the rotating disk to rotate. The adjustment mechanism also includes multiple swing pipes connected to the nozzles, a telescopic pipe connecting the swing pipes to the annular cover, and a third drive assembly for driving the swing pipes to reciprocate. The second drive assembly includes a rotating fan disposed within the outlet pipe and a first connecting pipe connecting the rotating fan and the rotating disk.

[0011] Preferably, the third drive assembly includes a rotating pin connected to the swing tube and a connecting block connected between the rotating pin and the rotating disk; the third drive assembly also includes a torsion spring connected between the rotating pin and the connecting block and a push assembly for pushing the swing tube to swing.

[0012] Preferably, the pushing component includes a ring, a plurality of triangular blocks connected to the ring, and a rotating component for rotating the ring so that the swing tube can slide along the side wall of the triangular blocks; the rotating component includes a rotating rod inserted into the first connecting tube, a support plate connected between the rotating rod and the liquid outlet tube, and a connecting plate connected between the rotating rod and the ring; the rotating rod passes through the rotating disk.

[0013] Preferably, the stripping tower further includes a packing layer disposed within the tower body; the packing layer consists of multiple packing modules; each packing module includes a first arc-shaped plate connected to the tower body, a second arc-shaped plate detachably connected to the tower body, and an installation assembly disposed between the second arc-shaped plate and the tower body; the first arc-shaped plate and the second arc-shaped plate are connected to form a packing cavity; the packing module further includes a perforated disc disposed within the packing cavity, a rubber sleeve connected to the perforated disc, and a lifting assembly for driving the perforated disc to rise and fall; the packing module further includes a handle connected to the second arc-shaped plate; the installation assembly includes a slot formed within the tower body, an insert block disposed on the second arc-shaped plate, and an installation block connected to the insert block, allowing the insert block to be inserted into the slot.

[0014] Preferably, the lifting assembly includes a mounting cavity formed in the side wall of the second arc-shaped plate, a slider connected to the hollow plate, and a spring telescopic sleeve connecting the slider and the mounting cavity; the lifting assembly also includes a pushing groove formed in the side wall of the hollow plate and a pushing block connected to the side wall of the first arc-shaped plate; the pushing groove includes an inclined surface, allowing the pushing block to slide along the inclined surface.

[0015] Compared with the prior art, the beneficial effects of the present invention are: This wastewater treatment pipeline and system for titanium dioxide production, through the installation of anti-clogging mechanisms, allows wastewater from titanium dioxide production to be filtered and transported through the pipeline body. The wastewater enters the bend through the inlet pipe and exits through the outlet pipe. When the wastewater enters the bend, the first drive component rotates the rotating roller and cleaning head, automatically cleaning the bend's corner. Furthermore, it creates a localized turbulent scouring flow at the bend, breaking down the adhesion conditions of suspended solids and crystals to the pipe wall, reducing the basis for sedimentation. It also promptly carries away impurities scraped off by the cleaning head, further reducing the probability of clogging. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the wastewater treatment pipeline for titanium dioxide production in this invention;

[0017] Figure 2 This is a schematic diagram of the adjustment mechanism in this invention;

[0018] Figure 3 This is a partial cross-sectional view of the annular cover in this invention;

[0019] Figure 4 This is a schematic diagram of the wastewater treatment system in this invention;

[0020] Figure 5 This is a partial cross-sectional view of the tower body in this invention;

[0021] Figure 6 This is a schematic diagram of the installation tube in this invention;

[0022] Figure 7 This is a partial cross-sectional view of the mounting tube in this invention;

[0023] Figure 8 This is a schematic diagram showing the location of the packing module in this invention;

[0024] Figure 9 This is a schematic diagram of the packing module in this invention;

[0025] Figure 10 This is a cross-sectional view of the packing module in this invention;

[0026] Figure 11This is a schematic diagram of the push groove in the present invention.

[0027] In the diagram: 101, Inlet pipe; 102, Bend; 103, Outlet pipe; 201, Sealing plate; 202, Rotating shaft; 301, Scale markings; 302, Vision sensor; 401, Flushing pipe; 402, Solenoid valve; 501, Annular cover; 502, Rotating disc; 503, Swinging pipe; 504, Telescopic pipe; 505, Nozzle; 601, Connecting block; 602, Rotating pin; 603, Torsion spring; 701, Support plate; 702, Rotating rod; 703, Connecting plate; 704, Circular ring; 705, Triangular block; 801, First connecting pipe; 802, Rotating fan; 901, Heat exchange cover; 902, Connecting pipe; 903, Exhaust pipe; 9 04. Inlet pipe; 905. Second connecting pipe; 1001. Mounting cavity; 1002. Spring telescopic sleeve rod; 1003. Slider; 1004. Push groove; 1005. Inclined surface; 1006. Push block; 1101. Mounting pipe; 1102. Notch; 1103. Rotating roller; 1104. Blade; 1105. Cleaning head; 1201. Tower body; 1202. Gas phase outlet; 1203. Packing pressure plate assembly; 1301. First arc plate; 1302. Second arc plate; 1303. Insert block; 1304. Hollowed-out disc; 1305. Rubber sleeve; 1306. Handle; 1307. Mounting block; 1308. Slot. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] Please see Figures 1-11This invention provides a wastewater treatment pipeline for titanium dioxide production, comprising a pipeline body, which includes an inlet pipe 101, a bend 102, and an outlet pipe 103 connected to each other. The pipeline body also includes an anti-clogging mechanism disposed on the bend 102. The anti-clogging mechanism includes an installation pipe 1101 communicating with the corner of the bend 102, a rotating roller 1103 disposed within the installation pipe 1101, and a first driving assembly for driving the rotating roller 1103 to rotate. The installation pipe 1101 and the bend 102 are connected through a notch 1102. The anti-clogging mechanism also includes multiple cleaning heads 1 connected to the sidewall of the rotating roller 1103. 105. Wastewater from titanium dioxide production is filtered and transported through the pipeline body. It enters the bend 102 through the inlet pipe 101 and is discharged through the outlet pipe 103. When the wastewater enters the bend 102, it can drive the rotating roller 1103 and the cleaning head 1105 to rotate under the action of the first drive component. It can automatically clean the corner of the bend 102 and form a local turbulent scouring flow at the corner of the bend 102, breaking the adhesion conditions of suspended solids and crystals on the pipe wall, reducing the basis for siltation, and timely carrying away the impurities scraped off by the cleaning head 1105, further reducing the probability of blockage.

[0030] The first drive assembly includes a sealing plate 201 detachably connected to both ends of the mounting pipe 1101, a rotating shaft 202 connected to both ends of the rotating roller 1103, and a detection assembly for detecting the rotation of the rotating shaft 202. The sealing plate 201 is sleeved on the side wall of the rotating shaft 202. The first drive assembly also includes multiple blades 1104 connected to the rotating roller 1103. When sewage enters the bend pipe 102, it can impact the surface of the blades 1104, causing the rotating roller 1103 to rotate and drive the cleaning head 1105 to rotate. It can use the impact force of sewage flow as power, without the need for an additional motor drive, which is more convenient and energy-saving.

[0031] The detection component includes a scale mark 301 set on the side wall of the rotating shaft 202 and a vision sensor 302 connected to the sealing plate 201. When the rotating roller 1103 rotates, it can drive the rotating shaft 202 to rotate. By detecting the scale mark 301 through the vision sensor 302, the rotation speed of the rotating shaft 202 can be determined, and then the rotation speed of the rotating roller 1103 can be determined, which facilitates the detection of the rotation speed of the rotating roller 1103.

[0032] The anti-clogging mechanism also includes a flushing assembly for flushing the bend 102; the flushing assembly includes a flushing pipe 401 connected to the mounting pipe 1101 and a solenoid valve 402 connected to the flushing pipe 401. When the rotation speed of the rotating roller 1103 is low, the solenoid valve 402 can be opened, allowing external high-pressure cleaning water to enter through the flushing pipe 401 and impact the rotating roller 1103 and the blades 1104, driving the rotating roller 1103 to rotate, which in turn drives the cleaning head 1105 to rotate. This not only flushes the inside of the mounting pipe 1101 but also ensures the effect of automatic cleaning.

[0033] The pipeline body also includes a preheating mechanism; the preheating mechanism includes multiple heat exchange shrouds 901 connected to the pipeline body; the preheating mechanism also includes a connecting pipe 902 connecting two adjacent heat exchange shrouds 901 and an air inlet pipe 904 and an exhaust pipe 903 connected to the heat exchange shrouds 901. The high-temperature medium enters the heat exchange shrouds 901 through the air inlet pipe 904, and under the action of the connecting pipe 902, passes through multiple heat exchange shrouds 901 in sequence and is discharged through the exhaust pipe 903, thereby preheating the sewage in the pipeline body. After preheating, the sewage temperature increases, which can improve the solubility of metal ions, slow down the rate of salt crystallization and precipitation, and reduce scale formation. At the same time, the high temperature can reduce the agglomeration and viscosity of colloidal particles, reduce their deposition in the pipeline body, reduce the risk of pipeline blockage, and extend the pipeline body cleaning cycle.

[0034] A wastewater treatment system for titanium dioxide production includes a stripping tower. The stripping tower includes a tower body 1201, a packing plate assembly 1203, a gas phase outlet 1202, and multiple nozzles 505. The gas phase outlet 1202 is connected to an air inlet pipe 904 via a second connecting pipe 905. The packing plate assembly 1203 includes a packing plate and a liquid distributor, both of which are well-known technologies in this field and will not be described in detail here. The wastewater treatment system also includes a wastewater treatment pipeline for titanium dioxide production. The stripping tower also includes an adjustment mechanism connecting the nozzles 505 and the liquid outlet pipe 103. The liquid outlet pipe 103 extends into the tower body 1201. The adjustment mechanism includes an annular cover 501 connected to the liquid outlet pipe 103, a rotating disk 502 rotating within the annular cover 501, and a drive mechanism. The second drive assembly for rotating the rotating disk 502; the adjustment mechanism also includes multiple swing pipes 503 connected to the nozzle 505, a telescopic pipe 504 connecting the swing pipes 503 and the annular cover 501, and a third drive assembly for driving the swing pipes 503 to reciprocate; the second drive assembly includes a rotating fan 802 disposed in the outlet pipe 103 and a first connecting pipe 801 connecting the rotating fan 802 and the rotating disk 502. Wastewater from titanium dioxide production is transported to the stripping tower for treatment through the pipeline body. The stripping gas, usually air, steam, or inert gas, is introduced from the bottom of the tower by a blower and passes through the packing layer from bottom to top. The wastewater flows down the packing layer and comes into full contact with the reverse stripping gas on the surface of the packing. Volatile pollutants in the wastewater... SO2, HCl, and volatile organic compounds are transferred from the liquid phase to the gas phase through gas-liquid mass transfer. Wastewater that has completed mass transfer, having removed volatile pollutants, is discharged from the bottom outlet of the tower and enters subsequent treatment processes. The waste gas carrying pollutants is discharged from the gas phase outlet 1202 at the top of the tower. After being treated by a tail gas absorption device such as an alkaline scrubbing tower to meet standards, it is discharged, avoiding secondary pollution. When the waste gas is discharged through the gas phase outlet 1202, it can enter the heat exchange hood 901 through the second connecting pipe 905 and the inlet pipe 904. Under the action of the connecting pipe 902, it sequentially passes through multiple heat exchange hoods 901 and is discharged through the exhaust pipe 903. This preheats the wastewater in the pipeline body, improving wastewater treatment efficiency. Simultaneously, it allows for heat recovery and reuse, making it more energy-efficient and environmentally friendly. When wastewater is discharged through the outlet pipe 103, it enters the annular shroud 501 and impacts the rotating fan 802, causing the fan 802 to rotate. When the fan 802 rotates, it drives the oscillating pipe 503 and the nozzle 505 to oscillate back and forth through the third drive component. This allows the nozzle 505 to rotate and oscillate back and forth, resulting in wider and more uniform coverage of wastewater entering the stripping tower. The oscillation action breaks the stable trajectory of the droplets, increases the collision and dispersion between droplets, makes the droplets smaller, and refreshes the surface faster, thereby improving the efficiency and effect of wastewater treatment. Furthermore, it can reduce the adhesion and accumulation of impurities on the nozzle 505, reduce the probability of nozzle 505 clogging, and extend the cleaning and maintenance cycle of the nozzle 505.

[0035] The third drive assembly includes a rotating pin 602 connected to the swing tube 503 and a connecting block 601 connected between the rotating pin 602 and the rotating disk 502; the third drive assembly also includes a torsion spring 603 connected between the rotating pin 602 and the connecting block 601 and a push assembly for pushing the swing tube 503 to swing. The push assembly pushes the swing tube 503 to rotate along the rotating pin 602. At the same time, the telescopic tube 504 and the torsion spring 603 deform, which facilitates the swing of the swing tube 503.

[0036] The driving assembly includes a ring 704, multiple triangular blocks 705 connected to the ring 704, and a rotating assembly for rotating the ring 704, allowing the swing tube 503 to slide along the sidewall of the triangular blocks 705. The rotating assembly includes a rotating rod 702 inserted into the first connecting pipe 801, a support plate 701 connecting the rotating rod 702 and the outlet pipe 103, and a connecting plate 703 connecting the rotating rod 702 and the ring 704. The rotating rod 702 passes through the rotating disk 502, and when the rotating disk 502 rotates, it drives the multiple swing tubes 503 through the third driving assembly. 3. When the swing tube 503 abuts against the side wall of the triangular block 705, it can push the swing tube 503 to rotate along the rotating pin 602. At the same time, the telescopic tube 504 and the torsion spring 603 deform. When the swing tube 503 passes the triangular block 705, the swing tube 503 can rotate and reset under the action of the torsion spring 603. By repeating this process, the swing tube 503 can swing back and forth, and drive the nozzle 505 to swing back and forth. It can swing the swing tube 503 and the nozzle 505 back and forth while the rotating disk 502 is rotating, without the need for an additional motor, which is more convenient and energy-saving.

[0037] The stripping tower also includes a packing layer disposed within the tower body 1201; the packing layer consists of multiple packing modules; each packing module includes a first arc-shaped plate 1301 connected to the tower body 1201, a second arc-shaped plate 1302 detachably connected to the tower body 1201, and an installation assembly disposed between the second arc-shaped plate 1302 and the tower body 1201. Sealing gaskets are provided on the mating surfaces of the second arc-shaped plate 1302, the tower body 1201, and two adjacent second arc-shaped plates 1302 to ensure sealing; the first arc-shaped plate 1301 and the second arc-shaped plate 1302 form a packing cavity after connection; the packing module also includes a perforated disc 1304 disposed within the packing cavity, a rubber sleeve 1305 connected to the perforated disc 1304, and a lifting assembly for driving the perforated disc 1304 to rise and fall; the packing is filled within the rubber sleeve 1305 and located at the top of the perforated disc 1304; the packing module also includes a handle 1306 connected to the second arc-shaped plate 1302; and an installation assembly. The components include a slot 1308 formed in the tower body 1201, an insert block 1303 set on the second arc plate 1302, and an mounting block 1307 connected to the insert block 1303, so that the insert block 1303 can be inserted into the slot 1308, and the packing layer is set into multiple segmented packing modules. When the packing needs to be replaced, the bolts on the mounting block 1307 are loosened from the tower body 1201. Then, the second arc plate 1302 is pulled outward by the handle 1306. After cleaning or replacement, the insert block 1303 is inserted into the slot 1308. Then, the mounting block 1307 is tightened and fixed to the tower body 1201 by bolts. This facilitates the segmented cleaning and replacement of the packing without emptying the entire tower of packing, greatly shortening the downtime for maintenance, reducing the impact on the continuous operation of the sewage treatment system, and improving the efficiency of maintenance. During maintenance, the machine needs to be stopped first, and the pressure warning valve is used to confirm that there is no pressure in the tower body 1201.

[0038] The lifting assembly includes a mounting cavity 1001 formed in the side wall of the second arc-shaped plate 1302, a slider 1003 connected to the hollowed-out plate 1304, and a spring telescopic sleeve 1002 connecting the slider 1003 and the mounting cavity 1001. The lifting assembly also includes a pushing groove 1004 formed in the side wall of the hollowed-out plate 1304 and a pushing block 1006 connected to the side wall of the first arc-shaped plate 1301. The pushing groove 1004 includes an inclined surface 1005, allowing the pushing block 1006 to slide along the inclined surface 1005. When the second arc-shaped plate 1302 is pulled outwards, the pushing block 1006 can gradually move upwards along the inclined surface 1005. At this time, the hollowed-out plate 1304 can gradually move downwards under the action of the spring telescopic sleeve 1002, allowing the rubber... The sleeve 1305 and the packing are detached from the previous packing module, making it easier to remove the second arc plate 1302 and clean or replace the packing inside the hollow plate 1304. When the second arc plate 1302 is inserted inward, the push block 1006 can gradually move downward along the inclined surface 1005, thereby pushing the hollow plate 1304 to gradually move upward. The slider 1003 moves upward in the mounting cavity 1001, and the spring telescopic sleeve 1002 is gradually compressed. When the hollow plate 1304 moves upward, it can drive the packing and rubber sleeve 1305 to move upward. When the rubber sleeve 1305 abuts against the bottom of the previous packing module, the rubber sleeve 1305 can be compressed, ensuring that each packing section fits tightly and ensuring the effect of sewage treatment.

[0039] Working principle: During use, wastewater from titanium dioxide production is filtered and transported through the pipeline body. It enters the bend 102 through the inlet pipe 101 and is discharged through the outlet pipe 103. When the wastewater enters the bend 102, it impacts the surface of the blades 1104, causing the rotating roller 1103 to rotate and drive the cleaning head 1105 to rotate. At this time, the corner of the bend 102 can be automatically cleaned to avoid the accumulation of deposits and ensure the conveying effect. Furthermore, when the rotating roller 1103 drives the cleaning head 1105 and the blades 1104 to rotate, a local turbulent scouring flow is formed at the corner of the bend 102, breaking the adhesion conditions of suspended solids and crystals on the pipe wall, reducing the basis for siltation, and timely carrying away the impurities scraped off by the cleaning head 1105, further reducing the probability of blockage.

[0040] When the rotating roller 1103 rotates, it drives the rotating shaft 202 to rotate. The rotation speed of the rotating shaft 202 can be determined by detecting the scale mark 301 through the vision sensor 302, and then the rotation speed of the rotating roller 1103 can be determined. When the rotation speed of the rotating roller 1103 is low, the solenoid valve 402 can be opened to allow external high-pressure cleaning water to enter through the flushing pipe 401 and impact the rotating roller 1103 and the blade 1104, driving the rotating roller 1103 to rotate, which in turn drives the cleaning head 1105 to rotate. This not only flushes the inside of the mounting pipe 1101, but also ensures the effect of automatic cleaning.

[0041] When sewage is discharged through the outlet pipe 103, it enters the annular cover 501 and impacts the rotating fan 802, causing it to rotate. The rotating fan 802 drives the rotating disk 502 to rotate, and through the third drive assembly, it drives multiple swing tubes 503 to rotate synchronously. When a swing tube 503 abuts against the side wall of the triangular block 705, it is pushed to rotate along the rotating pin 602. Simultaneously, the telescopic tube 504 and the torsion spring 603 deform. When the swing tube 503 passes the triangular block 705, it is able to move along the torsion spring... Under the action of 603, the rotation resets, and this reciprocating motion causes the swing tube 503 to swing back and forth, which in turn drives the nozzle 505 to swing back and forth. This allows the nozzle 505 to rotate while simultaneously swinging back and forth, resulting in wider and more uniform coverage of wastewater entering the stripping tower. The swinging motion breaks the stable trajectory of the droplets, increasing the collision and dispersion between droplets, making the droplets smaller and the surface renewed faster. This improves the efficiency and effectiveness of wastewater treatment. Furthermore, it reduces the adhesion and accumulation of impurities on the nozzle 505, lowers the probability of nozzle 505 clogging, and extends the cleaning and maintenance cycle of the nozzle 505.

[0042] During wastewater treatment, exhaust gas is discharged through the gas phase outlet 1202. Then, it can enter the heat exchange hood 901 through the second connecting pipe 905 and the air inlet pipe 904. Under the action of the connecting pipe 902, it passes through multiple heat exchange hoods 901 in sequence and is discharged through the exhaust pipe 903. This preheats the wastewater in the pipeline body, which can improve the efficiency of wastewater treatment. At the same time, it can recover and reuse heat, making it more energy-saving and environmentally friendly. Furthermore, the increased wastewater temperature after preheating can increase the solubility of metal ions, slow down the rate of salt crystallization and precipitation, and reduce scale formation. At the same time, the high temperature can reduce the agglomeration and viscosity of colloidal particles, reduce their deposition in the pipeline body, reduce the risk of pipeline blockage, and extend the pipeline body cleaning cycle.

[0043] Furthermore, the packing layer is configured as multiple segmented packing modules. When the packing needs to be replaced, the bolts on the mounting block 1307 are loosened from the tower body 1201. Then, the second arc plate 1302 is pulled outward by the handle 1306. At the same time, the pushing block 1006 can gradually move upward along the inclined plane 1005. At this time, the hollow plate 1304 can gradually move downward under the action of the spring telescopic sleeve 1002, so that the rubber sleeve 1305 and the packing are separated from the previous packing module, making it easy to remove the second arc plate 1302 and clean or replace the packing inside the hollow plate 1304.

[0044] After cleaning or replacement, insert block 1303 is inserted into slot 1308. At the same time, push block 1006 can gradually move downward along inclined surface 1005, thereby pushing hollow disk 1304 to gradually move upward. Slider 1003 moves upward in mounting cavity 1001, and spring telescopic sleeve 1002 is gradually compressed. When hollow disk 1304 moves upward, it can drive packing and rubber sleeve 1305 to move upward. When rubber sleeve 1305 abuts against the bottom of the previous packing module, rubber sleeve 1305 can be compressed, ensuring that each packing section fits tightly. Then, mounting block 1307 is tightened and fixed to tower body 1201 with bolts, which facilitates the cleaning and replacement of packing in sections and improves maintenance efficiency.

Claims

1. A wastewater treatment pipeline for titanium dioxide production, comprising a pipeline body, wherein the pipeline body includes an inlet pipe (101), a bend (102), and an outlet pipe (103) connected to each other, characterized in that: The pipe body also includes an anti-clogging mechanism disposed on the bend (102); the anti-clogging mechanism includes an installation pipe (1101) communicating with the corner of the bend (102), a rotating roller (1103) disposed in the installation pipe (1101), and a first drive assembly for driving the rotating roller (1103) to rotate; the anti-clogging mechanism also includes a plurality of cleaning heads (1105) connected to the side wall of the rotating roller (1103).

2. The wastewater treatment pipeline for titanium dioxide production according to claim 1, characterized in that: The first drive assembly includes a sealing plate (201) detachably connected to both ends of the mounting tube (1101), a rotating shaft (202) connected to both ends of the rotating roller (1103), and a detection assembly for detecting the rotation of the rotating shaft (202); the sealing plate (201) is sleeved on the side wall of the rotating shaft (202); the first drive assembly also includes a plurality of blades (1104) connected to the rotating roller (1103).

3. The wastewater treatment pipeline for titanium dioxide production according to claim 2, characterized in that: The detection component includes a scale mark (301) disposed on the side wall of the rotating shaft (202) and a vision sensor (302) connected to the sealing plate (201).

4. The wastewater treatment pipeline for titanium dioxide production according to claim 1, characterized in that: The anti-clogging mechanism also includes a flushing assembly for flushing the bend (102); the flushing assembly includes a flushing pipe (401) connected to the mounting pipe (1101) and a solenoid valve (402) connected to the flushing pipe (401).

5. A wastewater treatment pipeline for titanium dioxide production according to claim 1, characterized in that: The pipeline body also includes a preheating mechanism; the preheating mechanism includes a plurality of heat exchange shrouds (901) connected to the pipeline body; the preheating mechanism also includes a connecting pipe (902) connecting two adjacent heat exchange shrouds (901) and an air inlet pipe (904) and an exhaust pipe (903) connected to the heat exchange shrouds (901).

6. A wastewater treatment system for titanium dioxide production, comprising a stripping tower, the stripping tower including a tower body (1201), a packing plate assembly (1203), a gas phase outlet (1202), and a plurality of nozzles (505), the gas phase outlet (1202) being connected to an air inlet pipe (904) via a second connecting pipe (905), characterized in that: The wastewater treatment system further includes a wastewater treatment pipeline for titanium dioxide production as described in claim 5, and the stripping tower further includes an adjustment mechanism connecting the nozzle (505) and the outlet pipe (103); the outlet pipe (103) extends into the tower body (1201); the adjustment mechanism includes an annular cover (501) connected to the outlet pipe (103), a rotating disk (502) rotating in the annular cover (501), and a second drive assembly for driving the rotating disk (502) to rotate; the adjustment mechanism further includes a plurality of swing pipes (503) connected to the nozzle (505), a telescopic pipe (504) connecting the swing pipes (503) and the annular cover (501), and a third drive assembly for driving the swing pipes (503) to reciprocate; the second drive assembly includes a rotating fan (802) disposed in the outlet pipe (103) and a first connecting pipe (801) connecting the rotating fan (802) and the rotating disk (502).

7. A wastewater treatment system for titanium dioxide production according to claim 6, characterized in that: The third drive assembly includes a rotating pin (602) connected to the swing tube (503) and a connecting block (601) connected between the rotating pin (602) and the rotating disk (502); the third drive assembly also includes a torsion spring (603) connected between the rotating pin (602) and the connecting block (601) and a push assembly for pushing the swing tube (503) to swing.

8. A wastewater treatment system for titanium dioxide production according to claim 7, characterized in that: The pushing assembly includes a ring (704), a plurality of triangular blocks (705) connected to the ring (704), and a rotating assembly for rotating the ring (704) so ​​that the swing tube (503) can slide along the side wall of the triangular block (705); the rotating assembly includes a rotating rod (702) inserted into the first connecting tube (801), a support plate (701) connected between the rotating rod (702) and the liquid outlet tube (103), and a connecting plate (703) connected between the rotating rod (702) and the ring (704); the rotating rod (702) is disposed through the rotating disk (502).

9. A wastewater treatment system for titanium dioxide production according to claim 8, characterized in that: The stripping tower also includes a packing layer disposed within the tower body (1201); the packing layer is composed of multiple packing modules; each packing module includes a first arc-shaped plate (1301) connected to the tower body (1201), a second arc-shaped plate (1302) detachably connected to the tower body (1201), and an installation assembly disposed between the second arc-shaped plate (1302) and the tower body (1201); the first arc-shaped plate (1301) and the second arc-shaped plate (1302) are connected to form a packing cavity; the packing module also includes a hollow section disposed within the packing cavity. The filling module includes a plate (1304), a rubber sleeve (1305) connected to the hollow plate (1304), and a lifting assembly for driving the hollow plate (1304) to rise and fall; the filling module also includes a handle (1306) connected to the second arc plate (1302); the mounting assembly includes a slot (1308) opened in the tower body (1201), an insert (1303) set on the second arc plate (1302), and a mounting block (1307) connected to the insert (1303), so that the insert (1303) can be inserted into the slot (1308).

10. A wastewater treatment system for titanium dioxide production according to claim 9, characterized in that: The lifting assembly includes a mounting cavity (1001) formed on the side wall of the second arc plate (1302), a slider (1003) connected to the hollow plate (1304), and a spring telescopic sleeve (1002) connected between the slider (1003) and the mounting cavity (1001); the lifting assembly also includes a push groove (1004) formed on the side wall of the hollow plate (1304) and a push block (1006) connected to the side wall of the first arc plate (1301); the push groove (1004) includes an inclined surface (1005) so that the push block (1006) can slide along the inclined surface (1005).

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