A slag water treatment device for thermal power plants

Abstract

This invention relates to the field of slag water treatment technology, and in particular discloses a slag water treatment device for thermal power plants, comprising: a filtration section, including an outer cylinder and a filter cylinder disposed inside the outer cylinder; a rinsing section, including a water inlet assembly disposed on the upper surface of the filtration section, a drive assembly for driving the filter cylinder to rotate through the water inlet assembly, and a turbulence evacuation assembly disposed at the bottom of the filter cylinder; and a reuse treatment section disposed at the bottom of the outer cylinder for settling, filtering, and reusing wastewater discharged from the sewage pipe. This invention achieves backwashing by rotating the filter cylinder during water inlet, thereby using centrifugal force to throw out water. The turbulence evacuation assembly forms two movable vortices inside the filter cylinder during rotation, using these vortices to flush the inner wall of the filter cylinder. Simultaneously, a scraper acts on the outer surface of the filter cylinder, adhering to the outer side of the filter cylinder during rotation, thereby cleaning the external deposits on the filter cylinder. This effectively improves cleaning efficiency, eliminates the need for disassembly, and reduces maintenance costs.

Description

Technical Field

[0001] This invention relates to the field of slag water treatment technology, and more particularly to a slag water treatment device for thermal power plants. Background Technology

[0002] A thermal power plant is a factory that uses combustibles as fuel to produce electricity. Its basic production process is as follows: when the fuel is burned, it heats water to generate steam, which converts the chemical energy of the fuel into heat energy. The steam pressure drives the turbine to rotate, converting the heat energy into mechanical energy. Then the turbine drives the generator to rotate, converting the mechanical energy into electrical energy.

[0003] After the combustibles in a thermal power plant have burned, in order to prevent dust from the surface of the slag from being scattered into the air, the slag is washed with tap water. Since the slag water needs to be recycled, it is first coarsely filtered and then a wastewater treatment device is used to perform a second filtration inside the slag water.

[0004] The existing technology has at least the following problems: After secondary filtration with a filter screen for a period of time, the existing wastewater treatment equipment requires the staff to disassemble and clean the filter screen. Since the filter screen is fixed inside the wastewater treatment equipment with bolts, this will cause inconvenience to the staff during cleaning and reduce the efficiency of the wastewater treatment equipment. Summary of the Invention

[0005] In view of the problems existing in the current thermal power plant slag water treatment devices, the present invention is proposed.

[0006] Therefore, the purpose of this invention is to provide a device for treating slag water in thermal power plants.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a slag water treatment device for thermal power plants, comprising:

[0008] The filtration section includes an outer cylinder and a filter cylinder disposed inside the outer cylinder. A clean water output pipe is provided at the bottom axis of the filter cylinder. The other end of the clean water output pipe passes through the outer cylinder and extends to its outside. A sewage inlet pipe is connected to one side of the outer cylinder near the upper end, and a sewage discharge pipe is connected to the bottom of the outer cylinder. A scraper is vertically fixed at the top inside the outer cylinder.

[0009] The rinsing section includes a water inlet assembly disposed on the upper surface of the filtration section, a drive assembly for driving the filter cartridge to rotate through the water inlet assembly, and a turbulence evacuation assembly disposed at the bottom of the filter cartridge.

[0010] The reuse treatment section is located at the bottom of the outer cylinder and is used to settle and filter the sewage discharged from the sewage pipe for reuse.

[0011] As a preferred embodiment of the thermal power plant slag water treatment device of the present invention, the water inlet component includes a water pump, the water inlet end of the water pump is connected to an input pipe, and the water outlet end of the water pump is connected to an output pipe. The output pipe penetrates vertically downward through the outer cylinder and is fixedly connected to the filter cylinder, and an automatic sealing component is provided at the bottom of the inner part of the output pipe.

[0012] In a preferred embodiment of the thermal power plant slag water treatment device of the present invention, the automatic sealing component includes an inner frame fixed inside the output pipe, a guide rod penetrating vertically through the axis of the inner frame, a sealing plate fixed at the bottom end of the guide rod, and a spring sleeved on the outside of the guide rod between the inner frame and the sealing plate.

[0013] In a preferred embodiment of the thermal power plant slag water treatment device of the present invention, the driving assembly includes a mounting frame fixed to the base surface of the outer cylinder, a mounting plate fixed to the inner side of the mounting frame, and a driven gear sleeved and fixed to the output pipe.

[0014] In a preferred embodiment of the thermal power plant slag water treatment device of the present invention, a rotating shaft is provided through the surface of the mounting plate. A transmission gear one and a transmission gear two are fixed at both ends of the rotating shaft, respectively. A large gear one that is rotatably connected to the mounting plate is meshed on one side of the transmission gear one. A small gear one is fixed on the upper surface of the large gear one. A large gear two is meshed on one side of the small gear one. A small gear two is fixed on the upper surface of the large gear two. A rotating rod that is rotatably connected to the top of the mounting frame is fixed on the upper surface of the small gear two. A drive gear is meshed on the other side of the transmission gear two. The drive gear is driven by a drive motor.

[0015] As a preferred embodiment of the thermal power plant slag water treatment device of the present invention, the turbulence component includes an inner frame two fixed inside the purified water output pipe and a guide frame fixed inside the bottom of the filter cylinder. A fixing rod is fixed at the upper end of the inner frame two, and a fixing strip is fixed on the fixing rod. The surface of the fixing strip is symmetrically provided with slots. A roller is provided below the slot, and a turbulence plate is provided above the roller. The roller and the slot are slidably connected by a displacement tension member.

[0016] As a preferred embodiment of the thermal power plant slag water treatment device of the present invention, the displacement tensioning member includes a guide groove 1 symmetrically opened on the inner side of the slot and a fixed ring rotatably connected above the roller. Both sides of the fixed ring are fixed with limiting rods passing through the guide groove 1. One end of the limiting rod is through a guide rod 2, and a spring 2 is sleeved on the outside of the guide rod 2.

[0017] As a preferred embodiment of the thermal power plant slag water treatment device of the present invention, the reuse treatment section includes an open box, the inside of which is provided with a filter plate, the filter plate dividing the inside of the open box into a sedimentation zone and a filtration zone, the bottom of the sedimentation zone is connected to a second sewage pipe, and a return pipe is vertically arranged in the filtration zone.

[0018] In a preferred embodiment of the thermal power plant slag water treatment device of the present invention, the filter plate is provided with a cleaning screen for cleaning it.

[0019] As a preferred embodiment of the thermal power plant slag water treatment device of the present invention, the cleaning component includes a guide groove II opened on the inner side of the outer cylinder, a float attached to one side of the filter plate, and a connecting strip attached to the other side of the filter plate. A scraper is fixed at the bottom of the connecting strip, and the scraper and the float are connected by a U-shaped frame.

[0020] The beneficial effects of this invention are as follows: This invention rotates the filter cartridge during water intake, thereby throwing the water out through centrifugal force. The turbulence component forms two movable vortices inside the filter cartridge during rotation, which are used to flush the inner wall of the filter cartridge, thereby achieving backwash cleaning. At the same time, the scraper acts on the outer surface of the filter cartridge. When the filter cartridge rotates, the scraper adheres to the outer side of the filter cartridge, thereby cleaning the external adhering substances of the filter cartridge. This effectively improves the cleaning efficiency, eliminates the need for disassembly, and reduces maintenance costs.

[0021] The reuse treatment section performs secondary sedimentation treatment on the discharged wastewater, and the treated water is reused, which effectively reduces water waste and lowers costs. At the same time, the filter plate can be automatically cleaned by the scraper driven by the buoyancy of the liquid level, which reduces the difficulty of cleaning. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0023] Figure 1 This is a schematic diagram of the overall structure of the thermal power plant slag water treatment device of the present invention.

[0024] Figure 2 This is a schematic diagram of the filtration section in the thermal power plant slag water treatment device of the present invention.

[0025] Figure 3 This is a schematic diagram of the flushing section in the thermal power plant slag water treatment device of the present invention.

[0026] Figure 4This is a schematic diagram of the water inlet component in the thermal power plant slag water treatment device of the present invention.

[0027] Figure 5 This is a schematic diagram of the drive component in the thermal power plant slag water treatment device of the present invention.

[0028] Figure 6 This is a schematic diagram of the turbulence component in the thermal power plant slag water treatment device of the present invention.

[0029] Figure 7 For the present invention Figure 6 A magnified structural diagram of point A in the middle.

[0030] Figure 8 This is a schematic diagram of the reuse treatment section in the thermal power plant slag water treatment device of the present invention.

[0031] Figure 9 This is a schematic diagram of the cleaning screen component in the thermal power plant slag water treatment device of the present invention. Detailed Implementation

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0034] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0035] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0036] Example 1

[0037] Reference Figure 1 A schematic diagram of the overall structure of a thermal power plant slag water treatment device is provided, such as... Figure 1-5 A slag water treatment device for thermal power plants, comprising:

[0038] The filtration section 100 includes an outer cylinder 101 and a filter cylinder 102 disposed inside the outer cylinder 101. A clean water output pipe 103 is disposed at the bottom axis of the filter cylinder 102. The other end of the clean water output pipe 103 passes through the outer cylinder 101 and extends to its outside. A sewage inlet pipe 104 is connected to one side of the outer cylinder 101 near the upper end, and a sewage discharge pipe 105 is connected to the bottom of the outer cylinder 101. A scraper 106 is vertically fixed at the top inside the outer cylinder 101.

[0039] Specifically, valves are installed on the clean water output pipe 103, the sewage inlet pipe 104, and the sewage outlet pipe 105 to control the inflow and outflow of water.

[0040] The rinsing section 200 includes a water inlet assembly 201 disposed on the upper surface of the filter section 100, a drive assembly 202 for driving the filter cartridge 102 to rotate through the water inlet assembly 201, and a turbulence evacuation assembly 203 disposed at the bottom of the filter cartridge 102.

[0041] Furthermore, the water inlet assembly 201 includes a water pump 201a, the water inlet end of the water pump 201a is connected to an input pipe 201b, and the water outlet end of the water pump 201a is connected to an output pipe 201c. The output pipe 201c penetrates vertically downward through the outer cylinder 101 and is fixedly connected to the filter cylinder 102. An automatic sealing component 201d is provided at the bottom of the inside of the output pipe 201c.

[0042] Specifically, the upper surface of the filter cartridge 102 is provided with a through hole that communicates with the output pipe 201c, and the output pipe 201c is fixedly connected to the filter cartridge 102 by a flange. The water pump 201a operates to introduce external water into the filter cartridge 102 through the input pipe 201b.

[0043] Furthermore, the automatic sealing component 201d includes an inner frame 201d-1 fixed inside the output pipe 201c, a guide rod 201d-2 vertically passing through the axis of the inner frame 201d-1, a sealing plate 201d-3 fixed to the bottom end of the guide rod 201d-2, and a spring 201d-4 sleeved on the outside of the guide rod 201d-2 between the inner frame 201d-1 and the sealing plate 201d-3.

[0044] Specifically, the inner frame 201d-1 is a hollow part, allowing water to flow smoothly. A limit ring is fixed to the upper end of the guide rod 201d-2. The diameter of the limit ring is larger than the size of the through hole on the inner frame 201d-1 through which the guide rod 201d-2 passes, thus preventing it from detaching. The two ends of the spring 201d-4 are fixedly connected to the inner frame 201d-1 and the sealing plate 201d-3 respectively, providing a tensioning effect. The size of the sealing plate 201d-3 is larger than the diameter of the through hole on the upper surface of the filter cartridge 102, and a rubber pad is provided on the inner side of the sealing plate 201d-3, making the fit tighter and achieving a seal. As a result, the water entering from the output pipe 201c is blocked by the sealing plate 201d-3, causing the water to accumulate. With the increase in water volume and pressure, the sealing plate 201d-3 is forced to move downward and stretch the spring 201d-4. After the sealing plate 201d-3 moves downward, it can no longer perform its sealing and blocking function, and the water enters the filter cartridge 102. After the water inlet is closed, the insufficient water pressure, under the reaction force of the spring 201d-4, drives the sealing plate 201d-3 to move upward and fit against the inner top of the filter cartridge 102, thereby achieving the blockage. During normal filtration, this can prevent backflow.

[0045] Furthermore, the drive assembly 202 includes a mounting bracket 202a fixed to the base surface of the outer cylinder 101, a mounting plate 202b fixed to the inner side of the mounting bracket 202a, and a driven gear 202c sleeved and fixed to the output pipe 201c.

[0046] Specifically, the output pipe 201c is rotatably connected to the outlet end of the water pump 201a through a water seal bearing, which allows water to flow while rotating.

[0047] Furthermore, a rotating shaft 202d is provided through the surface of the mounting plate 202b. A transmission gear 202e and a transmission gear 202f are fixed at both ends of the rotating shaft 202d, respectively. A large gear 202g that is rotatably connected to the mounting plate 202b is meshed on one side of the transmission gear 202e. A small gear 202h is fixed on the upper surface of the large gear 202g. A large gear 202i is meshed on one side of the small gear 202h. A small gear 202j is fixed on the upper surface of the large gear 202i. A rotating rod 202k that is rotatably connected to the top of the mounting bracket 202a is fixed on the upper surface of the small gear 202j. A drive gear 202l is meshed on the other side of the transmission gear 202f. The drive gear 202l is driven by a drive motor 202m.

[0048] During operation, the drive motor 202m drives the drive gear 202l to rotate. The rotation of the drive gear 202l drives the transmission gear 202f to rotate. Through the rotating shaft 202d, the transmission gear 202e rotates accordingly. The transmission gear 202e drives the large gear 202g and the small gear 202h to rotate. The small gear 202h drives the large gear 202i and the rotating small gear 202j to rotate. The rotation of the small gear 202j drives the output pipe 201c to rotate through the driven gear 202c. The rotation of the output pipe 201c drives the filter cartridge 102 to rotate, generating centrifugal force. As a result, the water entering from the output pipe 201c will also splash, backwashing the inner wall of the filter cartridge 102. At the same time, the scraper 106 acts on the outer surface of the filter cartridge 102. When the filter cartridge 102 rotates, the scraper 106 adheres to the outer side of the filter cartridge 102, thereby cleaning the external adhering substances of the filter cartridge 102. This effectively improves the cleaning efficiency, eliminates the need for disassembly, and reduces maintenance costs.

[0049] Operation process: During cleaning, sewage is discharged from sewage inlet pipe 104 and enters outer cylinder 101. As more sewage enters, the liquid level rises. The dirt will settle to the bottom under its own weight, while the upper layer of clean water will be filtered by filter cylinder 102. The filtered water then enters filter cylinder 102, while impurities in the water are blocked by filter cylinder 102. The clean water in filter cylinder 102 is discharged through clean water outlet pipe 103, completing the filtration. When there is a lot of dirt, it is discharged through sewage outlet pipe 105.

[0050] During backwashing, water pump 201a operates to introduce external water into filter cartridge 102 through inlet pipe 201b. Drive motor 202m drives drive gear 202l to rotate. Drive gear 202l's rotation drives transmission gear 202f to rotate, which in turn drives transmission gear 202e via shaft 202d. Transmission gear 202e drives large gear 202g and small gear 202h to rotate. Small gear 202h drives large gear 202i and rotating small gear 202j to rotate. The rotation of the second gear 202j drives the output pipe 201c to rotate via the driven gear 202c. The rotation of the output pipe 201c drives the filter cartridge 102 to rotate, generating centrifugal force. Consequently, the water entering from the output pipe 201c will also splash, backwashing the inner wall of the filter cartridge 102. At the same time, the scraper 106 acts on the outer surface of the filter cartridge 102. When the filter cartridge 102 rotates, the scraper 106 adheres to the outer side of the filter cartridge 102, thereby cleaning the external adhering substances of the filter cartridge 102. This effectively improves the cleaning efficiency, eliminates the need for disassembly, and reduces maintenance costs.

[0051] Example 2

[0052] Reference Figure 6-7This embodiment differs from the first embodiment in that: the turbulence component 203 includes an inner frame 203a fixed inside the purified water output pipe 103 and a guide frame 203b fixed inside the bottom of the filter cylinder 102. A fixing rod 203c is fixed to the upper end of the inner frame 203a, and a fixing strip 203d is fixed to the fixing rod 203c. The surface of the fixing strip 203d is symmetrically provided with slots 203e. A roller 203f is provided below the slot 203e, and a turbulence plate 203g is provided above the roller 203f. The roller 203f and the slot 203e are slidably connected by a displacement tension member 203h.

[0053] Furthermore, the displacement tension member 203h includes a guide groove 203h-1 symmetrically opened inside the slot 203e and a fixing ring 203h-2 rotatably connected above the roller 203f. Both sides of the fixing ring 203h-2 are fixed with limiting rods 203h-3 passing through the guide groove 203h-1. One end of the limiting rod 203h-3 is penetrated by a second guide rod 203h-4. A second spring 203h-5 is sleeved on the outside of the second guide rod 203h-4.

[0054] Specifically, the central axis of the spoiler 203g passes through the fixed ring 203h-2 and is fixedly connected to the roller 203f. Therefore, when the fixed ring 203h-2 does not rotate, the rotation of the roller 203f can drive the spoiler 203g to rotate synchronously.

[0055] Specifically, the guide frame 203b has a pentagonal structure, which is formed by five "V" shaped structures. The five "V" shaped structures are not connected, and there are gaps between each pair of adjacent "V" shaped structures to facilitate water flow and avoid water entrapment, thereby improving sewage discharge and cleaning efficiency.

[0056] The rest of the structure is the same as in Example 1.

[0057] Operation process: During cleaning, water floods the filter cartridge 102, and the filter cartridge 102 is driven to rotate by the drive component 202. During the rotation, the five-pointed star structure guide frame 203b will rotate, and the roller 203f is attached to the outside of the guide frame 203b. Therefore, when the guide frame 203b rotates, the roller 203f will roll with the outside of the guide frame 203b, thereby causing the baffle plate 203g to rotate synchronously, thus forming a vortex. The vortex drives the water flow to flush the inside of the filter cartridge 102. At the same time, during the rolling, the roller 203f is displaced in the guide groove 203h-1 under the tension of the second spring 203h-5, thereby allowing the vortex to change distance in the filter cartridge 102, thus improving the cleaning efficiency.

[0058] Example 3

[0059] Reference Figure 8-9The difference between this embodiment and the above embodiments is that the slag water treatment device of the thermal power plant in this embodiment also includes a reuse treatment section 300, which is set at the bottom of the outer cylinder 101 for sedimentation, filtration and reuse of the sewage discharged from the sewage pipe 105.

[0060] Furthermore, the reuse processing section 300 includes an open box 301, inside which a filter plate 302 is provided. The filter plate 302 divides the interior of the open box 301 into a sedimentation zone 303 and a filtration zone 304. The bottom of the sedimentation zone 303 is connected to a drain pipe 305, and a return pipe 306 is vertically arranged inside the filtration zone 304.

[0061] Specifically, a second water pump is installed on the return pipe 306, and the upper end of the return pipe 306 is connected to the sewage inlet pipe 104. When the second water pump operates, the filtered sewage is passed through the return pipe 306 and the sewage inlet pipe 104 and then re-enters the outer cylinder 101 for reuse filtration, effectively reducing water waste and lowering costs.

[0062] Specifically, the bottom cross-section of the sedimentation zone 303 is a right-angled triangle structure, and the drain pipe 305 is located at the right angle of the triangle structure. The right angle is the lowest point of the slope, which facilitates the discharge of dirt.

[0063] Furthermore, the filter plate 302 is provided with a cleaning screen 307 for cleaning it.

[0064] Specifically, filter plate 302 consists of a partition and a filter screen. The partition is located at the bottom, and the filter screen is fixed above the partition. The partition is used to isolate the dirt that settles to the bottom, and the filter screen is used to filter out the supernatant.

[0065] Furthermore, the cleaning component 307 includes a guide groove 307a formed inside the outer cylinder 101, a float 307b attached to one side of the filter plate 302, and a connecting strip 307c attached to the other side of the filter plate 302. A scraper 307d is fixed to the bottom of the connecting strip 307c, and the scraper 307d and the float 307b are connected by a U-shaped frame 307e.

[0066] Specifically, the float 307b is made of hollow plastic, and both ends of the float 307b are fixed with protrusions that slide within the guide groove 307a. As the amount of supernatant increases, the float 307b rises with the increase in liquid level. After the float 307b rises, it will drive the scraper 307d to move upward. When the supernatant is pumped out by the second water pump, the liquid level drops, and the float 307b drops synchronously. Therefore, the scraper 307d descends to scrape away the dirt on the filter screen, eliminating the need for manual cleaning, improving the filtration effect, and avoiding the problem of poor filtration caused by dirt clogging the filter screen.

[0067] The rest of the structure is the same as in Example 2.

[0068] Operation process: As the amount of supernatant increases, the float 307b rises with the increase in liquid level. After the float 307b rises, it will drive the scraper 307d to move upward. The second water pump operates, and the filtered sewage enters the outer cylinder 101 again through the return pipe 306 and the sewage inlet pipe 104 for reuse filtration. When the liquid level drops, the float 307b drops synchronously, so the scraper 307d drops to scrape off the dirt on the filter screen. No manual cleaning is required, which improves the filtration effect and avoids the problem of poor filtration caused by dirt clogging the filter screen.

[0069] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0070] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0071] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0072] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A slag water treatment device for thermal power plants, characterized in that: include: The filtration section (100) includes an outer cylinder (101) and a filter cylinder (102) disposed inside the outer cylinder (101). A clean water output pipe (103) is provided at the bottom axis of the filter cylinder (102). The other end of the clean water output pipe (103) passes through the outer cylinder (101) and extends to its outside. A sewage inlet pipe (104) is connected to one side of the outer cylinder (101) near the upper end. A sewage discharge pipe (105) is connected to the bottom of the outer cylinder (101). A scraper (106) is vertically fixed at the top inside the outer cylinder (101). The rinsing section (200) includes an inlet assembly (201) disposed on the upper surface of the filter section (100), a drive assembly (202) for driving the filter cartridge (102) to rotate through the inlet assembly (201), and a turbulence assembly (203) disposed at the bottom of the filter cartridge (102). The reuse treatment section (300) is located at the bottom of the outer cylinder (101) for sedimentation, filtration and reuse of the sewage discharged from the sewage pipe (105); The water inlet assembly (201) includes a water pump (201a), the water inlet end of which is connected to an input pipe (201b), and the water outlet end of which is connected to an output pipe (201c). The output pipe (201c) passes vertically downward through the outer cylinder (101) and is fixedly connected to the filter cylinder (102). An automatic sealing component (201d) is provided at the bottom of the inside of the output pipe (201c). The output pipe (201c) is rotatably connected to the outlet end of the water pump (201a) via a water seal bearing; The automatic sealing component (201d) includes an inner frame (201d-1) fixed inside the output pipe (201c), a guide rod (201d-2) vertically passing through the axis of the inner frame (201d-1), a sealing plate (201d-3) fixed at the bottom end of the guide rod (201d-2), and a spring (201d-4) sleeved on the outside of the guide rod (201d-2) between the inner frame (201d-1) and the sealing plate (201d-3). The inner frame (201d-1) is a hollowed-out component; A limit ring is fixed at the upper end of the guide rod (201d-2); The two ends of the spring (201d-4) are fixedly connected to the inner frame (201d-1) and the sealing plate (201d-3) respectively; The turbulence-disrupting component (203) includes an inner frame two (203a) fixed inside the water purification output pipe (103) and a guide frame (203b) fixed inside the bottom of the filter cartridge (102). A fixing rod (203c) is fixed at the upper end of the inner frame two (203a), and a fixing strip (203d) is fixed on the fixing rod (203c). The surface of the fixing strip (203d) is symmetrically provided with slots (203e). A roller (203f) is provided below the slot (203e), and a turbulence-disrupting plate (203g) is provided above the roller (203f). The roller (203f) and the slot (203e) are slidably connected by a displacement tension member (203h). The displacement tension member (203h) includes a guide groove (203h-1) symmetrically opened inside the slot (203e) and a fixing ring (203h-2) rotatably connected above the roller (203f). Both sides of the fixing ring (203h-2) are fixed with limiting rods (203h-3) passing through the guide groove (203h-1). One end of the limiting rod (203h-3) is through a guide rod (203h-4). A spring (203h-5) is sleeved on the outside of the guide rod (203h-4). The central axis of the spoiler (203g) is fixedly connected to the roller (203f) through the fixing ring (203h-2); The guide frame (203b) has a pentagonal structure, which is formed by five "V" shaped structures that are not connected.

2. The slag water treatment device for thermal power plants as described in claim 1, characterized in that: The drive assembly (202) includes a mounting bracket (202a) fixed to the base surface of the outer cylinder (101), a mounting plate (202b) fixed to the inside of the mounting bracket (202a), and a driven gear (202c) sleeved and fixed to the output pipe (201c).

3. The slag water treatment device for thermal power plants as described in claim 2, characterized in that: A rotating shaft (202d) is provided through the surface of the mounting plate (202b). A transmission gear 1 (202e) and a transmission gear 2 (202f) are fixed at both ends of the rotating shaft (202d). A large gear 1 (202g) that is rotatably connected to the mounting plate (202b) is meshed on one side of the transmission gear 1 (202e). A small gear 1 (202h) is fixed on the upper surface of the large gear 1 (202g). A large gear 2 (202i) is meshed on one side of the small gear 1 (202h). A small gear 2 (202j) is fixed on the upper surface of the large gear 2 (202i). A rotating rod (202k) that is rotatably connected to the top of the mounting bracket (202a) is fixed on the upper surface of the small gear 2 (202j). A drive gear (202l) is meshed on the other side of the transmission gear 2 (202f). The drive gear (202l) is driven by a drive motor (202m).

4. The slag water treatment device for thermal power plants as described in claim 3, characterized in that: The reuse treatment section (300) includes an open box (301), inside which a filter plate (302) is provided. The filter plate (302) divides the interior of the open box (301) into a sedimentation zone (303) and a filtration zone (304). The bottom of the sedimentation zone (303) is connected to a second drain pipe (305), and a return pipe (306) is vertically arranged in the filtration zone (304). A second water pump is installed on the return pipe (306), and the upper end of the return pipe (306) is connected to the sewage inlet pipe (104).

5. The slag water treatment device for thermal power plants as described in claim 4, characterized in that: The filter plate (302) is provided with a cleaning screen (307) for cleaning it.

6. The slag water treatment device for thermal power plants as described in claim 5, characterized in that: The cleaning component (307) includes a guide groove (307a) opened inside the opening box (301), a float (307b) attached to one side of the filter plate (302), and a connecting strip (307c) attached to the other side of the filter plate (302). A scraper (307d) is fixed at the bottom of the connecting strip (307c), and the scraper (307d) and the float (307b) are connected by a U-shaped frame (307e). The two ends of the float (307b) are fixed with protrusions that slide within the guide groove (307a).

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