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CN-119409245-B - Waste water filtering mechanism of thermal power plant

CN119409245BCN 119409245 BCN119409245 BCN 119409245BCN-119409245-B

Abstract

The invention provides a waste water filtering mechanism of a thermal power plant, which comprises a filtering box body, a filtering screen plate, a movable mixing assembly, a clear mixing assembly and a clear mixing assembly, wherein the filtering screen plate is used for filtering waste water of the thermal power plant, the movable mixing assembly moves along with a dosing assembly and rotates, the movable mixing assembly is used for stirring liquid in the filtering box body, the clear mixing assembly is connected with the movable mixing assembly and runs along with the running of the clear mixing assembly, and the clear mixing assembly is used for further stirring liquid on the filtering screen plate and simultaneously cleaning the filtering screen plate. According to the invention, the filter screen plate can be used for filtering the waste water of the thermal power plant, the dynamic mixing component and the clear mixing component can rotate along with the movement of the dosing component, so that the liquid in the filter screen plate is stirred, the treatment agent can fully contact with the waste water of the thermal power plant, the treatment effect of the treatment agent on the waste water of the thermal power plant is improved, the clear mixing component can clean the filter screen plate, and the filter screen plate is prevented from being blocked to influence the use.

Inventors

  • LIU HAOHAO
  • DAI ZEZHENG
  • GUO CHENG

Assignees

  • 华能左权煤电有限责任公司

Dates

Publication Date
20260512
Application Date
20241022

Claims (7)

  1. 1. The waste water filtering mechanism of the thermal power plant comprises a filtering box body (1) and is characterized by further comprising a filtering screen plate (2), wherein the filtering screen plate (2) is arranged on the side wall of an inner cavity of the filtering box body (1), and the filtering screen plate (2) is used for filtering waste water of the thermal power plant; The dosing mechanism is connected with the upper part of the filtering box body (1), the dosing mechanism is used for uniformly adding a medicament into the filtering box body (1), the dosing mechanism comprises a dosing assembly (3) and a moving assembly (4), the dosing assembly (3) is arranged at the top of the filtering box body (1), the moving assembly (4) is arranged at the inner cavity of the filtering box body (1), and the dosing assembly (3) is connected with the moving assembly (4); The dynamic mixing assembly (5) is arranged at the inner cavity of the filtering box body (1), the dynamic mixing assembly (5) is connected with the dosing assembly (3), the dynamic mixing assembly (5) moves along with the dosing assembly (3) and rotates, and the dynamic mixing assembly (5) is used for stirring liquid in the filtering box body (1); the cleaning and mixing assembly (6) is arranged above the filter screen plate (2), the cleaning and mixing assembly (6) is connected with the dynamic mixing assembly (5), the cleaning and mixing assembly (6) operates along with the operation of the dynamic mixing assembly (5), and the cleaning and mixing assembly (6) is used for further stirring liquid on the filter screen plate (2) and cleaning the filter screen plate (2); The moving assembly (4) comprises a power source (41), and the power source (41) is arranged on the outer side of the filtering box body (1); The output end of the power source (41) is connected with a threaded shaft (42), the threaded shaft (42) is rotatably connected with the side surface of the filtering box body (1) in a penetrating way, and one end, far away from the power source (41), of the threaded shaft (42) is rotatably connected with the side wall of the inner cavity of the filtering box body (1); The surface of the threaded shaft (42) is in threaded connection with a moving plate (43), and the bottom of the moving plate (43) is connected with the top of the fixed pipe (34); The dynamic mixing assembly (5) comprises a rotating shaft (51), two ends of the rotating shaft (51) are respectively and rotatably connected with the side wall of the inner cavity of the filtering box body (1), and a plurality of stirring blades (52) are connected to the surface of the rotating shaft (51); The surface of the rotating shaft (51) is rotationally connected with a plurality of follow-up blocks (53), the top of each follow-up block (53) is connected with an upper connecting column (54), and the top of each upper connecting column (54) is connected with the bottom of the corresponding fixed pipe (34); the cleaning and mixing assembly (6) comprises a rotating shaft (61), and the top surface of the filter screen plate (2) is rotatably connected with a plurality of rotating shafts (61); The surface of the rotating shaft (61) is connected with a plurality of mixing blades (62), the bottoms of the mixing blades (62) are connected with cleaning brushes (63), and the bottom sides of the cleaning brushes (63) are contacted with the top surface of the filter screen plate (2); the top end of the rotating shaft (61) is connected with a rotating gear (64), the side surface of the rotating gear (64) is connected with a movable rack (65) in a meshed manner, and the top of the movable rack (65) is connected with the bottom of the mounting plate; The top of the mounting plate is connected with a plurality of lower connecting columns (67), and the top ends of the lower connecting columns (67) are connected with the bottom of the follow-up block (53).
  2. 2. The waste water filtering mechanism of a thermal power plant according to claim 1, wherein the dosing assembly (3) comprises a medicine storage box (31), a dosing pump (32) is arranged at the bottom of the medicine storage box (31), and the output end of the dosing pump (32) is connected with a connecting pipe (33); One end of the connecting pipe (33) far away from the adding pump (32) is connected with the fixed pipe (34), the fixed pipe (34) is arranged at the inner cavity of the filtering box body (1), and a plurality of spraying ends (35) are connected to the bottom of the fixed pipe (34).
  3. 3. The thermal power plant wastewater filtering mechanism according to claim 2, wherein a plurality of support columns (36) are connected to the bottom of the medicine storage box (31), and the bottom ends of the support columns (36) are connected with the top of the filtering box body (1).
  4. 4. The waste water filtering mechanism of thermal power plant according to claim 2, wherein the connecting pipe (33) is composed of a hose and a hard pipe, the hose and the hard pipe are connected with each other, and the hose is connected with an output end of the feed pump (32); The top surface of the filtering box body (1) is provided with a preset opening, and the hard pipe is in sliding penetrating connection with the top surface of the filtering box body (1) through the preset opening.
  5. 5. The waste water filtering mechanism of thermal power plant according to claim 1, wherein a plurality of fixed rails (44) are connected to the inner wall of the filtering box body (1), and the surfaces of the fixed rails (44) are slidably connected with the movable plate (43) in a penetrating manner.
  6. 6. The waste water filtering mechanism of a thermal power plant according to claim 1, wherein the two ends of the rotating shaft (51) are connected with a movable gear (55), the side surface of the movable gear (55) is meshed with a fixed rack (56), and the fixed rack (56) is connected to the side wall of the inner cavity of the filtering box body (1).
  7. 7. The waste water filtering mechanism of thermal power plant according to claim 1, wherein the side wall of the inner cavity of the filtering box body (1) is connected with a fixed column (68), and the surface of the fixed column (68) is in sliding penetrating connection with the mounting plate.

Description

Waste water filtering mechanism of thermal power plant Technical Field The invention relates to the field of wastewater treatment, in particular to a wastewater filtering mechanism of a thermal power plant. Background The basic production process of the thermal power plant is that fuel is burnt in a boiler to heat water to form steam, chemical energy of the fuel is converted into heat energy, steam pressure drives a steam turbine to rotate, the heat energy is converted into mechanical energy, and then the steam turbine drives a generator to rotate, so that the mechanical energy is converted into electric energy. Modern power plants mostly employ program control to increase the level of automation. The program control is to divide a large number of scattered operations in the production process into a plurality of regular programs for control according to the process flows of the auxiliary machine and the thermodynamic system, and combine the protection and interlocking conditions to ensure that an operator can automatically complete the operation of the control system by the program control system through a few switch-type buttons. With the increasing expansion of computer applications, especially the development of microcomputers and microprocessors, the automation of modern thermal power plants has been realized in a layered integrated control manner based on small computers, microcomputers and microprocessors. When the thermal power plant is operated in daily life, various sewage and wastewater are generated, wherein the sewage and wastewater mainly comprises acid-base sewage from a chemical water treatment workshop, ash flushing water generated by an ash flushing system of an electric dust collector, boiler room slag flushing sewage, periodic sewage discharge of a boiler, sewage discharge of a circulating water system, flushing water of a coal conveying system, oily sewage generated by an oil depot, factory domestic sewage and the like, main pollutants in the sewage are suspended matters, petroleum and a small amount of organic matters, and the thermal power plant wastewater is directly discharged to cause great environmental pollution, so that the thermal power plant wastewater needs to be treated, and a filter is required to filter solid matters in the wastewater when the thermal power plant wastewater is treated; In the granted Chinese patent publication No. CN216963699U, the name is a filtering device for waste water discharge of a thermal power plant, the filtering device drives a spiral blade to rotate through a rotating pipeline, so that waste water in the drainage pipeline is continuously pushed forward to prevent waste water deposition, the existing filter element needs to be cleaned frequently, the existing filter element needs to be fastened through a plurality of screws, the time spent on disassembly and assembly is long, the cleaning efficiency is influenced, at the moment, the assembly and disassembly of the filtering element are facilitated through the expansion and contraction of a spring, the disassembly and assembly speed is improved, the effect of improving the disassembly and assembly speed is achieved, the spiral blade is utilized to push the waste water to advance to prevent pipeline blockage, but the sediment in the waste water is easy to block a filter screen, the problem that the blocked filter screen is solved through the mode of replacing the filter element is solved, the operation is troublesome, and the filter element needs to be stopped for treatment when the filter element is replaced, and the efficiency of waste water filtration is influenced. Disclosure of Invention The invention aims to overcome the defect that a filter screen in the prior art is easy to block so as to influence the filtering efficiency of waste water, and provides a waste water filtering mechanism of a thermal power plant. The invention solves the technical problems by the following technical scheme: The invention provides a waste water filtering mechanism of a thermal power plant, which comprises a filtering box body, The filter screen plate is arranged on the side wall of the inner cavity of the filter box body and is used for filtering the wastewater of the thermal power plant; the dosing mechanism is connected with the upper part of the filtering box body and is used for uniformly adding medicines into the filtering box body, the dosing mechanism comprises a dosing assembly and a moving assembly, the dosing assembly is arranged at the top of the filtering box body, the moving assembly is arranged at the inner cavity of the filtering box body, and the dosing assembly is connected with the moving assembly; The movable mixing assembly is arranged at the inner cavity of the filtering box body and is connected with the dosing assembly, moves along with the dosing assembly and rotates, and is used for stirring liquid in the filtering box body; clear subassembly that mixes, clear subassembly that mixes se