A power plant chemical water quality pretreatment device and a treatment process thereof

Abstract

The application discloses a power plant chemical water quality pretreatment device and a treatment process thereof, and relates to the technical field of water quality treatment. The device comprises a support plate body, and a filtering mechanism B is fixedly installed on the top of the support plate body. In the filtering tank, the gear driven by the driving motor is closely meshed with the gear groove, drives the inner annular plate and the stirring rod to rotate at high speed, and forms a powerful vortex effect. This design not only increases the contact area of the sewage and the stirring rod, but also effectively deposits the impurities in the sewage downwards, realizes the deep purification of the sewage, and makes the multiple collecting grooves work in turn with the channel through the cooperation of the micro motor at the bottom and the air cylinder. The flexible bellows realizes the close sealing. The intelligent collecting system can accurately extract the sewage containing impurities into the collecting groove, and further reduces the content of impurities in the sewage through repeated operation.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, specifically to a chemical water pretreatment device for power plants and its treatment process. Background Technology

[0002] Pretreatment of chemical water in power plants is a crucial step in the power plant water treatment process. Its main purpose is to remove impurities such as suspended solids, colloidal substances, and organic matter from the raw water, as well as to reduce water hardness, thus providing a qualified water source for subsequent water treatment processes. In power plants, raw water (natural water) typically contains a significant amount of suspended solids, colloidal substances, organic matter, and dissolved salts. If these impurities are not pretreated before entering the boiler, they will seriously affect the safe operation of the boiler and the quality of steam. Therefore, the main objectives of pretreatment are: to remove suspended solids and colloidal substances from the raw water to prevent them from forming scale in the boiler; to reduce the hardness of the raw water to reduce the deposition of calcium and magnesium ions in the boiler; and to remove or reduce the organic matter content in the raw water to prevent it from affecting steam quality.

[0003] In the prior art, such as Chinese Patent No. CN212110865U, a water quality pretreatment device for a water quality chemical analysis station is provided, including a base and a fixing frame. The upper left side of the base is fixedly connected to the fixing frame, and a fixing ring is fixedly connected to the right end of the fixing frame. A funnel is fixedly connected to the inner side of the fixing ring, and a connecting pipe is fixedly connected to the lower end of the funnel. A first water-stop clamp is fixedly connected to the outer side of the connecting pipe, and a glass bottle is fixedly connected to the lower end of the connecting pipe. The lower end of the glass bottle is fixedly connected to the base, and a vacuum tube is fixedly connected to the upper right side of the glass bottle. A vacuum pump is fixedly connected to the right end of the vacuum tube, and the lower end of the vacuum pump is fixedly connected to the base. By using the funnel, glass bottle, vacuum pump, water pump, water injection pipe, filter bucket, and mounting ring, the water sample treatment efficiency can be improved. After treatment, the impact of the water sample on the testing instrument is reduced, and the accuracy and timeliness of water quality testing are greatly improved.

[0004] Water, as an indispensable working and cooling medium in the thermal system of a power plant, directly affects the safe operation efficiency, economic benefits, and environmental protection of power plant equipment. Poor water quality not only easily leads to serious problems such as scaling, corrosion, and salt accumulation in equipment, but may also directly cause equipment failure or even shutdown, posing a significant threat to the stable operation of the power plant. Given the critical importance of water quality to the operation of power plant equipment, traditional chemical water pretreatment processes are proving inadequate. Their low treatment efficiency, complex equipment structure, and cumbersome operation are becoming increasingly apparent, and they are unable to effectively treat impurities in the water, failing to meet the high standards and stringent requirements of modern power plants for water quality. Summary of the Invention

[0005] The purpose of this invention is to provide a chemical water pretreatment device for power plants, which, through the vortex effect generated, draws impurities in wastewater downwards to settle, thereby reducing the impurity content in wastewater and effectively solving the problems mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a power plant chemical water pretreatment device, comprising a support plate body, wherein a filter mechanism B is fixedly installed on the top of the support plate body;

[0007] The filtration mechanism B includes a filter tank. Two L-shaped connecting plates are fixedly connected to the outer wall of the filter tank, and the bottom of both L-shaped connecting plates is fixedly connected to the top of the support plate body. A sealing cover is movably embedded in the inner wall of the filter tank near the top. One side of the outer wall of the filter tank is fixedly connected to a pipe A, and the other side of the outer wall of the filter tank is fixedly connected to a pipe B. A connecting ring is fixedly connected to the bottom of the filter tank. An inner annular drive groove is opened inside the connecting ring. A slot is opened on one side of the outer wall of the connecting ring. An inner annular plate is driven to rotate on the inner wall of the inner annular drive groove. A set of toothed grooves is opened on the outer wall of the inner annular plate. A set of stirring rods is fixedly installed on the top of the inner annular plate. A channel is opened at the center of the top of the inner annular plate. A connecting plate A is fixedly connected to the outer wall of the filter tank. A drive motor is fixedly inserted inside the connecting plate A. A gear is fixedly connected to the rotating end of the drive motor, and the outer wall of the gear moves inside the slot.

[0008] Preferably, the bottom of the connecting ring is fixedly connected to two mounting plates, each mounting plate has a mounting hole on its opposite side, a bearing is fixedly inserted into the inner wall of each mounting hole, and a drive rod is fixedly inserted between the inner walls of the two bearings.

[0009] Preferably, a micro motor is fixedly connected to the outer wall of the drive rod, and a side plate is fixedly connected to the outer wall of the micro motor, with one side of the outer wall of the side plate being fixedly connected to one side of the outer wall of one of the mounting plates.

[0010] Preferably, a drive shaft is fixedly sleeved on the outer wall of the drive rod, and a set of collection grooves is opened on the outer wall of the drive shaft. The output end of each set of collection grooves is fixedly connected to a telescopic corrugated pipe.

[0011] Preferably, the sedimentation mechanism includes two sedimentation tanks, and the bottom of both sedimentation tanks is fixedly connected to the top of the support plate body near the right edge, and a conveying pipe is fixedly connected to one side of the outer wall of each of the two sedimentation tanks.

[0012] Preferably, the filter mechanism A includes a set of mounting rod bodies, and the bottom of the set of mounting rod bodies is fixedly connected to the top of the support plate body near the right edge.

[0013] Preferably, a filter box is fixedly connected to one side of the outer wall of a set of mounting rod bodies, and a set of L-shaped filter plates is fixedly connected to the inner surface of the filter box, and the set of L-shaped filter plates are interlocked with each other.

[0014] Preferably, the bottom of the filter box is fixedly connected to an output pipe, the output end of the output pipe is fixedly connected to a switch valve, and the output end of the switch valve is fixedly connected to the input end of pipe B.

[0015] Preferably, the collection mechanism includes a diversion pipeline, and the output end of pipeline A is fixedly connected to the input end of the diversion pipeline. The output end of the diversion pipeline is fixedly connected to multiple collection tanks, and the bottom of each collection tank is fixedly connected to the top of the support plate body near the left edge.

[0016] A treatment process for a power plant chemical water pretreatment device includes the following steps:

[0017] Step 1: First, when using the equipment, pour the wastewater into the two sedimentation tanks for initial sedimentation treatment. During this process, add coagulant to the water to cause the tiny suspended solids or colloidal particles in the water to agglomerate into larger particles and settle.

[0018] Step 2: Then, under the action of the circulation pump installed on one side of its outer wall, it can draw the sewage after sedimentation treatment into itself and transfer it into the inside of the transfer pipe, and keep the sewage into the inside of the filter box. The sewage enters the filter space formed by a set of L-shaped filter plates, and it can further treat the impurities in the sewage by itself, and keep the impurities filtered at the top of the set of L-shaped filter plates. The filtered sewage impurities can penetrate downward and be collected at the bottom of the inner wall of the filter box.

[0019] Step 3: Subsequently, the wastewater after secondary filtration is delivered to the filter mechanism B through the output pipe and pipeline B via the switch valve. After entering the filter tank, the wastewater is driven by the motor at the bottom, which rotates the gear at the bottom and engages with a set of toothed grooves inside. With the inner annular plate rotating, the inner annular plate rotates rapidly. The stirring rods at the top increase the contact area with the wastewater, thus keeping the wastewater inside rotating rapidly. Under the vortex traction force, impurities can be pulled downwards for processing.

[0020] Step 4: During this process, the micro motor can drive the drive rod to rotate inside the two bearings, thereby driving the drive shaft to rotate effectively. During this rotation, multiple collection tanks can be aligned with the channel. Then, under the push of the cylinder, the telescopic bellows is kept aligned upward, maintaining the seal between them, thereby drawing a small amount of sewage and impurities into the collection tank. This process is repeated multiple times to further reduce the impurity content in the sewage.

[0021] Step 5: Then, the treated wastewater is transferred to the diversion pipeline through pipe A, and the wastewater is then transferred to the interior of multiple collection tanks through the diversion pipeline.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] 1. In this invention, inside the filter tank, the gear driven by the motor meshes tightly with the tooth groove, causing the inner annular plate and stirring rod to rotate at high speed, forming a powerful vortex effect. This design not only increases the contact area between the sewage and the stirring rod, but also effectively pulls impurities in the sewage downwards to settle, achieving deep purification of the sewage. Meanwhile, the micro motor and cylinder at the bottom work together to enable multiple collection tanks to align with the channel in sequence and achieve a tight seal through the telescopic corrugated pipe. This intelligent collection system can accurately extract sewage containing impurities into the collection tank, and further reduce the content of impurities in the sewage through repeated operation.

[0024] 2. In this invention, the system effectively removes impurities from wastewater while also prioritizing environmental protection and energy conservation. Through optimized design and rational layout, energy consumption and wastewater discharge are reduced, achieving efficient utilization and protection of water resources.

[0025] 3. In this invention, the entire wastewater treatment process is highly automated. From wastewater introduction, sedimentation, and filtration to deep purification, collection, and final distribution to collection tanks, all are achieved through sophisticated mechanical devices and control systems. This not only improves treatment efficiency but also reduces the cost and risk of manual operation. Attached Figure Description

[0026] Figure 1 This is a top view of the structure in a power plant chemical water pretreatment device according to the present invention.

[0027] Figure 2 This is a perspective view of the main structure of a power plant chemical water pretreatment device according to the present invention;

[0028] Figure 3 This is a three-dimensional view of a partial structure of a power plant chemical water pretreatment device according to the present invention;

[0029] Figure 4This is a perspective view of a collection mechanism in a power plant chemical water pretreatment device according to the present invention;

[0030] Figure 5 This is a sectional perspective view of the filtration mechanism B in a power plant chemical water pretreatment device according to the present invention.

[0031] Figure 6 This is a three-dimensional sectional view of part B of the filtration mechanism in a power plant chemical water pretreatment device according to the present invention.

[0032] Figure 7 This is an enlarged view of structure A in a power plant chemical water pretreatment device according to the present invention;

[0033] Figure 8 This is an enlarged view of structure A in a power plant chemical water pretreatment device according to the present invention.

[0034] In the diagram: 1. Support plate body; 2. Sedimentation mechanism; 21. Sedimentation tank; 22. Conveying pipe; 3. Filtering mechanism A; 31. Mounting rod body; 32. Filter box; 33. L-shaped filter plate; 34. Output pipe; 35. Switch valve; 4. Filtering mechanism B; 41. Filter tank; 411. L-shaped connecting plate; 412. Sealing cover; 413. Pipe A; 414. Pipe B; 42. Connecting ring; 421. Inner annular drive groove; 422 43. Groove; 431. Gear; 432. Stirring rod; 433. Channel; 44. Connecting plate A; 441. Drive motor; 442. Gear; 45. Mounting plate; 451. Mounting hole; 46. Bearing; 47. Drive rod; 48. Micro motor; 481. Side plate; 49. Drive shaft; 491. Collection trough; 492. Telescopic corrugated pipe; 5. Collection mechanism; 51. Diversion pipeline; 52. Collection tank. Detailed Implementation

[0035] 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.

[0036] Example 1

[0037] Reference Figures 1-8 As shown: The present invention provides a chemical water pretreatment device for power plants, including a support plate body 1, and a filter mechanism B4 is fixedly installed on the top of the support plate body 1;

[0038] The filtration mechanism B4 includes a filter tank 41. Two L-shaped connecting plates 411 are fixedly connected to the outer wall of the filter tank 41, and the bottoms of both L-shaped connecting plates 411 are fixedly connected to the top of the support plate body 1. A sealing cap 412 is movably embedded in the inner wall of the filter tank 41 near the top. A pipe A413 is fixedly connected to one side of the outer wall of the filter tank 41, and a pipe B414 is fixedly connected to the other side of the outer wall of the filter tank 41. A connecting ring 42 is fixedly connected to the bottom of the filter tank 41. An inner annular drive groove 421 is formed inside the connecting ring 42, and a slot 422 is formed on one side of the outer wall of the connecting ring 42. An inner annular plate 43 rotates on the inner wall of the inner annular drive groove 421. A set of toothed grooves 431 are formed on the outer wall of the inner annular plate 43. A set of stirring rods 432 is fixedly installed on the top of the inner annular plate 43, and a channel 433 is formed at the center of the top of the inner annular plate 43. The outer wall of the filter tank 41 is fixedly connected to... A connecting plate A44 is provided, and a drive motor 441 is fixedly inserted inside the connecting plate A44. A gear 442 is fixedly connected to the rotating end of the drive motor 441, and the outer wall of the gear 442 moves inside the slot 422. Two mounting plates 45 are fixedly connected to the bottom of the connecting ring 42. Mounting holes 451 are opened on opposite sides of the two mounting plates 45. Bearings 46 are fixedly inserted into the inner wall of the two mounting holes 451. A drive rod 47 is fixedly inserted between the inner walls of the two bearings 46. A micro motor 48 is fixedly connected to the outer wall of the drive rod 47. A side plate 481 is fixedly connected to the outer wall of the micro motor 48, and one side of the outer wall of the side plate 481 is fixedly connected to one side of the outer wall of one of the mounting plates 45. A drive shaft 49 is fixedly sleeved on the outer wall of the drive rod 47. A set of collection grooves 491 are opened on the outer wall of the drive shaft 49. The output ends of the set of collection grooves 491 are fixedly connected to a telescopic corrugated pipe 492.

[0039] In this embodiment, the micro motor 48 serves as the core power source, precisely driving the drive rod 47 to rotate under the stable support of two precision bearings 46. This rotational motion, through precise mechanical transmission, effectively drives the continuous and stable rotation of the drive shaft 49. As the drive shaft 49 rotates, its multiple collection grooves 491 align precisely with the channel 433 below, forming smooth flow paths. Then, the cylinder, acting as the actuator, responds quickly upon receiving the command, pushing the telescopic bellows 492 upwards until it seamlessly connects with the channel 433, ensuring a tight seal between the two. This design not only effectively prevents… This process not only prevents sewage leakage during treatment but also significantly improves the efficiency of impurity collection. After the seal is established, trace amounts of sewage and the impurities they carry are cleverly guided into the collection tank 491 under the traction of the vortex. This process not only achieves deep capture of the remaining impurities in the sewage but also further reduces the content of impurities in the sewage through repeated circulation operations, significantly improving the overall purity of the water. Finally, the clean water, carefully treated through multiple processes, is smoothly transported to the diversion pipeline 51 through pipeline A413. Here, the diversion pipeline 51, with its efficient distribution capability, guides the treated sewage evenly and orderly into each collection tank 52.

[0040] Example 2

[0041] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 as well as Figure 8 As shown, the sedimentation mechanism 2 includes two sedimentation tanks 21, and the bottom of both sedimentation tanks 21 is fixedly connected to the top of the support plate body 1 near the right edge. A conveying pipe 22 is fixedly connected to one side of the outer wall of both sedimentation tanks 21. The filtration mechanism A3 includes a set of mounting rod bodies 31, and the bottom of the set of mounting rod bodies 31 is fixedly connected to the top of the support plate body 1 near the right edge. A filter box 32 is fixedly connected to one side of the outer wall of the set of mounting rod bodies 31. A set of L-shaped filter plates 33 is fixedly connected to the inner surface of the filter box 32, and the set of L-shaped filter plates 33 are interlocked with each other. An output pipe 34 is fixedly connected to the bottom of the filter box 32. A switch valve 35 is fixedly connected to the output end of the output pipe 34, and the output end of the switch valve 35 is fixedly connected to the input end of the pipe B414.

[0042] The collection mechanism 5 includes a diversion pipe 51, and the output end of pipe A413 is fixedly connected to the input end of the diversion pipe 51. The output end of the diversion pipe 51 is fixedly connected to multiple collection tanks 52, and the bottom of the multiple collection tanks 52 is fixedly connected to the top of the support plate body 1 near the left edge.

[0043] In this embodiment, firstly, when the equipment is started and put into use, wastewater is introduced into two sedimentation tanks 21. Inside the sedimentation tanks 21, coagulants are precisely injected into the water. Under the catalysis of these coagulants, tiny suspended solids and colloidal particles in the water are rapidly attracted to each other and agglomerated, eventually forming larger particles. These particles then slowly sink to the bottom of the tank under gravity. As the sedimentation process continues, the wastewater gradually becomes clear. At this point, a high-efficiency circulation pump installed on one side of the outer wall of the sedimentation tank 21 begins to play its key role. Driven by the powerful force of the circulation pump, the wastewater that has undergone preliminary sedimentation treatment is continuously drawn out and quickly transported to the next treatment unit through a carefully designed transfer pipe 22. —Filter box 32. Inside filter box 32, a set of carefully arranged L-shaped filter plates 33 creates a highly efficient filtration space. The surface of the L-shaped filter plates 33 is covered with tiny filter holes, which can further refine the incoming sewage. When the sewage flows through these L-shaped filter plates 33, the impurities are effectively intercepted and adsorbed on the top of the L-shaped filter plates 33, while the filtered sewage continues to permeate downwards and eventually collects at the bottom of the inner wall of filter box 32. This process not only achieves deep removal of impurities in sewage, but also ensures the stability and reliability of the filtration effect. As the filtration process continues, the sewage impurities collected at the bottom of filter box 32 gradually increase, providing convenience for the next step of treatment.

[0044] The working principle of the entire mechanism is as follows: Wastewater is first introduced into two sedimentation tanks 21 for preliminary natural sedimentation. During this process, an appropriate amount of coagulant is added to the wastewater, causing tiny suspended solids and colloidal particles in the water to quickly aggregate into larger particles, facilitating their settling and removal. Subsequently, a circulation pump installed on one side of the outer wall of the sedimentation tank 21 pumps the pre-sedimented wastewater to the transfer pipe 22 and guides it into the filter tank 32. Inside the filter tank 32, a set of carefully designed L-shaped filter plates 33 constitutes a highly efficient filtration space. These filter plates can further capture and trap impurities in the wastewater, causing them to settle on the top of the filter plates. The clear water that permeates through the filter plates flows downwards and eventually collects at the bottom of the inner wall of the filter tank 32. Then, by operating the switch valve 35, the wastewater that has undergone primary and secondary filtration is transported to the core of the filtration mechanism B4—the filter tank 41—using the transport path constructed by the output pipe 34 and the pipeline B414. Inside the filter tank 41, a drive motor installed at the bottom... The machine 441 drives the gear 442 to rotate, which meshes tightly with a set of toothed grooves 431 inside the tank, causing the inner annular plate 43 and its upper inner annular drive groove 421 to rotate at high speed. During this process, the stirring rod 432 arranged at the top significantly increases the contact area with the sewage, forming a strong vortex effect, which effectively pulls impurities in the sewage downward to settle. At the same time, the micro motor 48 drives the drive rod 47 to rotate within two bearings 46, thereby driving the drive shaft 49 to rotate. As the drive shaft 49 rotates, multiple collection tanks 491 align with the channel 433 in sequence. With the help of the cylinder, the telescopic bellows 492 extends precisely upward and seals tightly with the channel 433, thereby drawing a small amount of sewage containing impurities into the collection tank 491. By repeating this step, the deep removal of impurities in the sewage is achieved. Finally, the clean water after multiple treatments is transported to the diversion pipeline 51 through the pipeline A413, and then evenly distributed to multiple collection tanks 52 by the pipeline, completing the entire sewage treatment process.

[0045] The present invention also provides a treatment process for a power plant chemical water pretreatment device, comprising the following steps:

[0046] Step 1: First, when using the equipment, the wastewater is poured into the two sedimentation tanks 21 for preliminary sedimentation treatment. During this process, coagulant is added to the water to cause the tiny suspended solids or colloidal particles in the water to agglomerate into larger particles and settle.

[0047] Step 2: Then, under the action of the circulation pump set on one side of its outer wall, it can draw the sewage after sedimentation into itself and transfer it into the inside of the transfer pipe 22, and keep the sewage into the inside of the filter box 32. The sewage enters the filter space formed by a set of L-shaped filter plates 33, and it can further treat the impurities in the sewage by itself, and keep the impurities filtered at the top of the set of L-shaped filter plates 33. The filtered sewage impurities can penetrate downward and be collected at the bottom of the inner wall of the filter box 32.

[0048] Step 3: Subsequently, the wastewater after secondary filtration is transferred to the filter mechanism B4 through the output pipe 34 and the pipeline B414 via the switch valve 35. After entering the filter tank 41, the wastewater is driven by the drive motor 441 at the bottom, which drives the gear 442 at the bottom to rotate and maintains meshing with a set of toothed grooves 431 inside. With the inner annular plate 43 rotating, the inner annular drive groove 421 cooperates to keep the inner annular plate 43 rotating rapidly. The set of stirring rods 432 at the top increases the contact area with the wastewater, thereby keeping the wastewater inside rotating rapidly. Under the action of the vortex traction force, impurities can be pulled downwards for processing.

[0049] Step 4: During this process, the micro motor 48 can drive the drive rod 47 to rotate inside the two bearings 46, thereby driving the drive shaft 49 to rotate effectively. During this rotation, multiple collection tanks 491 can be aligned with the channel 433. Then, under the push of the cylinder, the telescopic bellows 492 is kept aligned upward, maintaining the seal between the two, thereby drawing a small amount of sewage and impurities into the collection tank 491. This process is repeated multiple times to further reduce the impurity content in the sewage.

[0050] Step 5: Then, the treated wastewater is transferred to the diversion pipe 51 through pipe A413, and the wastewater is transferred to the interior of multiple collection tanks 52 through the diversion pipe 51.

[0051] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. A power plant chemical water pretreatment device, comprising a support plate body (1), characterized in that: The top of the support plate body (1) is fixedly installed with a filter mechanism B (4). The filtration mechanism B (4) includes a filter tank (41). Two L-shaped connecting plates (411) are fixedly connected to the outer wall of the filter tank (41), and the bottom of the two L-shaped connecting plates (411) is fixedly connected to the top of the support plate body (1). A sealing cover (412) is movably embedded in the inner wall of the filter tank (41) near the top. A pipe A (413) is fixedly connected to one side of the outer wall of the filter tank (41), and a pipe B (414) is fixedly connected to the other side of the outer wall of the filter tank (41). A connecting ring (42) is fixedly connected to the bottom of the filter tank (41). An inner annular drive groove (421) is opened inside the connecting ring (42), and a slot is opened on one side of the outer wall of the connecting ring (42). (422), the inner surface of the inner annular drive groove (421) is driven by an inner annular plate (43), the outer surface of the inner annular plate (43) is provided with a set of toothed grooves (431), a set of stirring rods (432) is fixedly installed on the top of the inner annular plate (43), a channel (433) is provided at the center of the top of the inner annular plate (43), the outer surface of the filter tank (41) is fixedly connected to a connecting plate A (44), a drive motor (441) is fixedly inserted inside the connecting plate A (44), the rotating end of the drive motor (441) is fixedly connected to a gear (442), and the outer surface of the gear (442) moves inside the groove (422), and the gear (442) meshes tightly with the toothed groove (431); Two mounting plates (45) are fixedly connected to the bottom of the connecting ring (42). Mounting holes (451) are opened on the opposite side of the two mounting plates (45). Bearings (46) are fixedly inserted into the inner surface of the two mounting holes (451). A drive rod (47) is fixedly inserted between the inner surface of the two bearings (46). The outer wall of the drive rod (47) is fixedly connected to a micro motor (48), and the outer wall of the micro motor (48) is fixedly connected to a side plate (481), and one side of the outer wall of the side plate (481) is fixedly connected to one side of the outer wall of one of the mounting plates (45). The outer wall of the drive rod (47) is fixedly fitted with a drive shaft (49), and the outer wall of the drive shaft (49) is provided with a set of collection grooves (491). The output end of the set of collection grooves (491) is fixedly connected to a telescopic bellows (492). As the drive shaft (49) rotates, the multiple collection grooves (491) on it are precisely aligned with the channel (433) in sequence.

2. The power plant chemical water pretreatment device according to claim 1, characterized in that: The sedimentation mechanism (2) includes two sedimentation tanks (21), and the bottom of the two sedimentation tanks (21) is fixedly connected to the top of the support plate body (1) near the right edge. The outer wall of the two sedimentation tanks (21) is fixedly connected to a conveying pipe (22).

3. The power plant chemical water pretreatment device according to claim 2, characterized in that: The filter mechanism A (3) includes a set of mounting rod bodies (31), and the bottom of the set of mounting rod bodies (31) is fixedly connected to the top of the support plate body (1) near the right edge.

4. The power plant chemical water pretreatment device according to claim 3, characterized in that: A filter box (32) is fixedly connected to one side of the outer wall of a set of mounting rod bodies (31), and a set of L-shaped filter plates (33) is fixedly connected to the inner surface of the filter box (32), and the set of L-shaped filter plates (33) are interlocked with each other.

5. The power plant chemical water pretreatment device according to claim 4, characterized in that: The bottom of the filter box (32) is fixedly connected to an output pipe (34), the output end of the output pipe (34) is fixedly connected to a switch valve (35), and the output end of the switch valve (35) is fixedly connected to the input end of the pipe B (414).

6. The power plant chemical water pretreatment device according to claim 5, characterized in that: The system includes a collection mechanism (5), which includes a diversion pipe (51), and the output end of pipe A (413) is fixedly connected to the input end of the diversion pipe (51). The output end of the diversion pipe (51) is fixedly connected to multiple collection tanks (52), and the bottom of the multiple collection tanks (52) is fixedly connected to the top of the support plate body (1) near the left edge.

7. A treatment process for a power plant chemical water pretreatment device, using the power plant chemical water pretreatment device according to claim 6, comprising the following steps: S1: First, when the equipment is in use, the sewage is poured into the two sedimentation tanks (21) for preliminary sedimentation treatment. During this process, coagulant is added to the water so that the tiny suspended solids or colloidal particles in the water can aggregate into large particles and sink. S2: Then, under the action of the circulation pump set on one side of its outer wall, it can draw the sewage after sedimentation into itself and transfer it to the inside of the transfer pipe (22), and keep the sewage into the inside of the filter box (32), and the sewage enters the filter space formed by a set of L-shaped filter plates (33), and it can further treat the impurities in the sewage by itself, and keep the impurities filtered on the top of a set of L-shaped filter plates (33), and the filtered sewage impurities can penetrate downward and be collected at the bottom of the inner wall of the filter box (32); S3: Then, through the switch valve (35), the output pipe (34) and the pipeline B (414) are used as the conveying path to transfer the sewage after secondary filtration to the inside of the filter mechanism B (4). After the sewage enters the filter tank (41), the drive motor (441) at the bottom is powered on and rotates, which can drive the gear (442) at the bottom to rotate and maintain meshing with a set of tooth grooves (431) inside. Under the rotation of the inner ring plate (43), the inner ring drive groove (421) cooperates to keep the inner ring plate (43) rotating quickly. The set of stirring rods (432) at the top increases the contact area with the sewage, thereby keeping the sewage inside rotating quickly. Under the action of the vortex traction force, the impurities can be pulled downwards for processing. S4: During this process, the micro motor (48) can drive the drive rod (47) to rotate inside the two bearings (46), thereby driving the drive shaft (49) to rotate effectively. During this rotation, multiple collection tanks (491) can be aligned with the channel (433). Then, under the push of the cylinder, the telescopic bellows (492) is kept aligned upward, maintaining the seal between the two, thereby drawing a small amount of sewage and impurities into the collection tank (491). This process is repeated multiple times to further reduce the content of impurities in the sewage. S5: Then, the treated sewage is transferred to the diversion pipe (51) through pipe A (413), and the sewage is transferred to the interior of multiple collection tanks (52) through the diversion pipe (51).

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