Sludge dewatering treatment method for water supply and drainage

Abstract

The invention relates to the technical field of water supply and drainage treatment, in particular to a sludge dewatering treatment method for water supply and drainage, which comprises the following steps: S1, introducing sludge water into a mixing drum through a water inlet pipe, then introducing a disinfectant into the mixing drum through a disinfectant conduit to be mixed with the sludge water, and then stirring the mixed liquid through a stirring piece; s2, a sludge pump is started to guide sludge water in the mixing barrel into a water guide pipe through a sludge water guide pipe, then the sludge water is guided into a centrifugal dewatering part through the water guide pipe, and the sludge water can be centrifugally dewatered through the centrifugal dewatering part; s3, after centrifugal dewatering of the sludge water is completed, the centrifugal dewatering part stops working, the two air cylinders are controlled to make the two extrusion dewatering parts move in the opposite directions and make contact with the centrifugal dewatering part, and therefore the two extrusion dewatering parts conduct extrusion dewatering on the sludge water in the centrifugal dewatering part; s4, after extrusion dehydration is completed, separated water is guided into a filter through a drainage pipe to be filtered.

Description

Technical Field

[0001] The invention relates to the technical field of water supply and drainage treatment, in particular to a sludge dehydration treatment method for water supply and drainage. Background Art

[0002] Water supply and drainage engineering studies the social circulation of water. In drainage engineering, since sewage is often mixed with silt to form sludge, the sludge is generally in a fluid state before treatment and contains a large amount of sewage. Sewage contains a large amount of toxic components, and random discharge will cause pollution to the environment. Therefore, during sludge treatment, the sludge will be disinfected, and the sewage in the sludge will be separated, and the sludge will be turned into a solid state to facilitate the subsequent treatment of the sludge and further reduce environmental pollution; After searching, the patent with the authorization announcement number CN 207259354U discloses "a sludge drainer for water supply and drainage engineering, which includes a base, a support plate, a disinfection mechanism, a first pipeline, a mounting plate, a fixing plate, a connecting rod, a dehydration frame, a second pipeline, an extrusion mechanism, a discharging mechanism and a valve; the support plate is fixedly connected to the top of the base, the first pipeline is fixedly connected to and passes through the support plate; the mounting plate is fixedly connected to the top of the support plate, and the disinfection mechanism is fixedly connected to the side of the support plate"; This patent has an opening at the upper end of a "dehydration frame" and a "pressing plate" above it. When in use, the disinfected fluidized sludge is injected into the "dehydration frame" and the "pressing plate" is driven to move up and down to squeeze the sludge and squeeze the water out of the leakage hole. When the "pressing plate" squeezes the sludge water, the sludge is gathered together. Since the sludge is soft, the "pressing plate" cannot completely squeeze out the water inside the sludge during squeezing, and the dehydration effect by squeezing alone is not ideal. Summary of the invention

[0003] The purpose of the present invention is to solve the disadvantage of unsatisfactory dehydration effect in the prior art and to propose a sludge dehydration treatment method for water supply and drainage.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions: Designing a method for dewatering sludge for water supply and drainage, wherein the method is implemented by a sludge dewatering device for water supply and drainage, wherein the sludge dewatering device for water supply and drainage comprises a disinfection mechanism, a sludge pump, a dewatering mechanism and a filter; The disinfection mechanism comprises a mixing drum, which is fixedly mounted on one end of the top of the base, a water inlet pipe is fixedly mounted on the outside of the mixing drum, a medicine conduit is mounted below the water inlet pipe, the medicine conduit is fixedly connected to the mixing drum, a rotating sleeve is rotatably mounted on the inside of the mixing drum, a plurality of stirring members are mounted on the rotating sleeve, and the plurality of stirring members are evenly distributed in the vertical direction, and a mud and water outlet pipe is fixedly mounted on the bottom end of the mixing drum; the sludge pump is fixedly mounted on the base, and the inlet end of the sludge pump is connected to the mud and water outlet pipe; The dehydration mechanism includes an installation box, a centrifugal dehydration component, a water guide pipe, a drainage pipe, two cylinders and two extrusion dehydration components; the installation box is fixedly installed on the other end of the top of the base, the water guide pipe is fixedly installed on the top of the installation box, and the inlet end is connected to the outlet end of the sludge pump, the centrifugal dehydration component is installed on the inner side of the installation box and is located below the water guide pipe, the two cylinders are respectively fixedly installed at both ends of the installation box, and the output ends are respectively connected to the two extrusion dehydration components, the drainage pipe is fixedly installed on the bottom of the installation box, and the filter is fixedly installed at the outlet end of the drainage pipe; The method for dewatering sludge for water supply and drainage comprises the following steps: S1: The sludge water is introduced into the mixing cylinder through the water inlet pipe, and then the disinfectant is introduced into the mixing cylinder through the agent conduit to mix with the sludge water, and then the mixed liquid is stirred by the stirring element, so that the disinfectant and the sludge water are fully mixed, thereby greatly improving the disinfection effect of the sewage; S2: Start the sludge pump to guide the sludge water in the mixing drum into the water pipe through the sludge water outlet pipe, and then guide the sludge water into the centrifugal dehydration part through the water pipe. The centrifugal dehydration part can centrifugally dehydrate the sludge water, thereby achieving preliminary dehydration of the sludge water; S3: After the sludge water is centrifugally dehydrated, the centrifugal dehydration component stops working, and then the two cylinders are controlled to make the two extrusion dehydration components move toward each other and contact the centrifugal dehydration component, so that the two extrusion dehydration components squeeze and dehydrate the sludge water inside the centrifugal dehydration component, thereby further improving the dehydration effect of the sludge water; S4: After the extrusion dehydration is completed, the separated water is introduced into the filter through the drain pipe for filtration, so that some impurities mixed in the water can be filtered out, thereby improving the treatment quality of the sludge water.

[0005] Furthermore, the stirring member comprises a mounting sleeve, the mounting sleeve is fixedly mounted on the rotating sleeve, a plurality of stirring rods are fixedly mounted on the outer side of the mounting sleeve, and the plurality of stirring rods are equidistantly distributed around the mounting sleeve.

[0006] Furthermore, a first rotating shaft is rotatably installed on the inner sides of several of the stirring rods, the first rotating shaft passes through the stirring rod and extends to the inner side of the mounting sleeve, a stirring impeller is fixedly installed on one end of the first rotating shaft, a first bevel gear is fixedly installed on the other end of the first rotating shaft, a second rotating shaft passing through is rotatably installed on the inner side of the rotating sleeve, several second bevel gears corresponding to the mounting sleeve are fixedly installed on the second rotating shaft, several second bevel gears are respectively located in corresponding mounting sleeves, and all the first bevel gears are meshed with corresponding second bevel gears.

[0007] Furthermore, a first driving member is installed on the top of the mixing cylinder, and the first driving member includes a first motor, a first gear, a second gear and a first ring gear; the first motor is fixedly installed on the top of the mixing cylinder, the first gear is fixedly installed on the output shaft of the first motor, the second gear is rotatably installed on the top of the mixing cylinder and meshes with the first gear, and the first ring gear is fixedly installed on the top of the rotating sleeve and meshes with the second gear.

[0008] Furthermore, a third gear is fixedly mounted on the output shaft of the first motor, a fourth gear is fixedly mounted on the top of the second rotating shaft, and the fourth gear is meshed with the third gear.

[0009] Furthermore, the centrifugal dehydration component includes a rotating seat and a cloth bag; the rotating seat is rotatably installed on the top of the installation box, and the cloth bag is fixedly installed on the inner side of the rotating seat and is located directly below the outlet end of the water pipe.

[0010] Furthermore, a second gear ring is fixedly installed on the top of the rotating seat, a fifth gear is rotatably installed on the top of the mounting box, the fifth gear is meshed with the second gear ring, a second pulley is coaxially fixedly installed on the fifth gear, a first pulley is also fixedly installed on the output shaft of the first motor, and the first pulley is connected to the second pulley through a belt drive.

[0011] Furthermore, the extrusion and dehydration component includes a movable frame, which is fixedly installed on the output end of the corresponding cylinder and located on the inner side of the installation box. Both ends of the movable frame are provided with slide grooves, and the two slide grooves are arranged in parallel along the vertical direction. A movable shaft is movably installed between the two slide grooves, and a pressure roller is fixedly installed on the movable shaft, and the pressure roller can contact the cloth bag. Both ends of the movable shaft are fixedly installed with traveling gears, and both ends of the movable frame are fixedly installed with vertically arranged tooth plates, and the two traveling gears are meshed with the corresponding tooth plates.

[0012] Furthermore, a worm wheel is fixedly mounted on the end of the movable shaft, a worm is rotatably mounted on the end of the movable frame, and the worm is arranged along the vertical direction and meshes with the worm wheel.

[0013] Furthermore, a second driving member is installed on the inner wall of the installation box, and the second driving member includes a sleeve shaft, which is rotatably installed on the inner side of the installation box, and plug shafts are slidably installed on both ends of the sleeve shaft, one end of the two plug shafts are respectively rotatably connected to the two movable frames, and limiting strips are fixedly installed on the plug shafts, and fourth bevel gears are fixedly installed on the ends of the two plug shafts, and a third bevel gear is fixedly installed on the top of the worm, and the third bevel gear is meshed with the corresponding fourth bevel gear, and a fifth bevel gear is fixedly installed on the middle part of the sleeve shaft, and a second motor is fixedly installed on the outer side of the installation box, and a sixth bevel gear is fixedly installed on the output shaft of the second motor, and the sixth bevel gear is meshed with the fifth bevel gear.

[0014] The sludge dehydration treatment method for water supply and drainage proposed by the present invention has the following beneficial effects: 1. All the mounting sleeves can be rotated synchronously by rotating the rotating sleeve, so that all the stirring rods on the mounting sleeves can rotate axially in the horizontal direction, so that the disinfectant and the sludge water can be fully mixed in the horizontal direction; all the second bevel gears can be rotated synchronously by rotating the second rotating shaft, so that all the first bevel gears can be rotated synchronously, so that all the first rotating shafts can be rotated synchronously, so that all the stirring impellers can be rotated in the vertical direction, and then the disinfectant and the sludge water can be fully mixed in the vertical direction, which can greatly improve the mixing effect of the disinfectant and the sludge water, and also improve the disinfection effect; 2. The sludge water is introduced into the cloth bag through the water pipe. The cloth bag can prevent the sludge from passing through but allow water to pass through, so that the sludge water can be initially filtered. When the first motor is started, it can drive the first pulley to rotate, which makes the second pulley drive the fifth gear to rotate, and also makes the second gear ring rotate synchronously, so that the rotating seat drives the cloth bag to rotate centrifugally, and then the water in the sludge water of the cloth bag can be removed, and the water with a high solubility in the sludge can be removed, which greatly improves the dehydration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the sludge dewatering treatment device for water supply and drainage proposed by the present invention; Figure 2 This is a schematic diagram of the structure of the disinfection mechanism of the sludge dehydration treatment device for water supply and drainage proposed by the present invention; Figure 3 This is a schematic diagram of the structure of the dehydration mechanism of the sludge dehydration treatment device for water supply and drainage proposed by the present invention; Figure 4 This is a schematic structural diagram of a stirring member of a sludge dewatering treatment device for water supply and drainage proposed by the present invention; Figure 5 This is a schematic structural diagram of the first driving member of the sludge dewatering treatment device for water supply and drainage proposed by the present invention; Figure 6 This is a schematic structural diagram of the centrifugal dehydration component of the sludge dehydration treatment device for water supply and drainage proposed by the present invention; Figure 7 This is a partial structural schematic diagram of the sludge dewatering treatment device for water supply and drainage proposed by the present invention; Figure 8 This is a schematic structural diagram of the extrusion dehydration component of the sludge dehydration treatment device for water supply and drainage proposed by the present invention; Fig. 9 This is a schematic structural diagram of a second driving member of the sludge dewatering treatment device for water supply and drainage proposed by the present invention; Fig.10 This is a flow chart of the treatment method of the sludge dewatering treatment device for water supply and drainage proposed by the present invention.

[0016] In the figure: base 1, disinfection mechanism 2, mixing cylinder 21, water inlet pipe 22, medicine conduit 23, mud water outlet pipe 24, rotating sleeve 25, stirring member 26, mounting sleeve 261, stirring rod 262, first rotating shaft 263, stirring impeller 264, first bevel gear 265, second rotating shaft 266, second bevel gear 267, first driving member 27, first motor 271, first gear 272, second gear 273, first gear ring 274, third gear 275, fourth gear 276, first pulley 277, sludge pump 3, dehydration mechanism 4, mounting box 41, centrifugal dehydration Component 42, rotating seat 421, cloth bag 422, second gear ring 423, fifth gear 424, second pulley 425, water guide pipe 43, drain pipe 44, cylinder 45, extrusion dehydration component 46, movable frame 461, slide 462, movable shaft 463, pressure roller 464, walking gear 465, tooth plate 466, worm wheel 467, worm 468, third bevel gear 469, second driving component 47, sleeve shaft 471, plug shaft 472, limit strip 473, fourth bevel gear 474, fifth bevel gear 475, second motor 476, sixth bevel gear 477, filter 5. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Embodiment 1:

[0018] Reference Figure 1-3 , a method for dehydrating sludge for water supply and drainage, the method for dehydrating sludge for water supply and drainage is realized by a sludge dehydrating treatment device for water supply and drainage, the sludge dehydrating treatment device for water supply and drainage comprises a disinfection mechanism 2, a sludge pump 3, a dehydration mechanism 4 and a filter 5; The disinfection mechanism 2 includes a mixing drum 21, which is fixedly mounted on one end of the top of the base 1, a water inlet pipe 22 is fixedly mounted on the outside of the mixing drum 21, a medicine conduit 23 is mounted below the water inlet pipe 22, and the medicine conduit 23 is fixedly connected to the mixing drum 21, a rotating sleeve 25 is rotatably mounted on the inside of the mixing drum 21, a plurality of stirring members 26 are mounted on the rotating sleeve 25, and the plurality of stirring members 26 are evenly distributed in the vertical direction, and a mud and water outlet pipe 24 is fixedly mounted on the bottom end of the mixing drum 21; a sludge pump 3 is fixedly mounted on the base 1, and the inlet end of the sludge pump 3 is connected to the mud and water outlet pipe 24; The dehydration mechanism 4 includes an installation box 41, a centrifugal dehydration component 42, a water guide pipe 43, a drainage pipe 44, two cylinders 45 and two extrusion dehydration components 46; the installation box 41 is fixedly installed at the other end of the top of the base 1, the water guide pipe 43 is fixedly installed on the top of the installation box 41, and the inlet end is connected to the outlet end of the sludge pump 3, the centrifugal dehydration component 42 is installed on the inner side of the installation box 41 and is located below the water guide pipe 43, the two cylinders 45 are respectively fixedly installed at both ends of the installation box 41, and the output ends are respectively connected to the two extrusion dehydration components 46, the drainage pipe 44 is fixedly installed at the bottom of the installation box 41, and the filter 5 is fixedly installed at the outlet end of the drainage pipe 44; The method for dewatering sludge for water supply and drainage comprises the following steps: S1: Sludge water is introduced into the mixing barrel 21 through the water inlet pipe 22, and then the disinfectant is introduced into the mixing barrel 21 through the agent conduit 23 to mix with the sludge water, and then the mixed liquid is stirred by the stirring element 26, so that the disinfectant and the sludge water are fully mixed, thereby greatly improving the disinfection effect of the sewage; S2: Start the sludge pump 3 to guide the sludge water in the mixing drum 21 into the water pipe 43 through the sludge water outlet pipe 24, and then guide the sludge water into the centrifugal dehydration part 42 through the water pipe 43. The centrifugal dehydration part 42 can centrifugally dehydrate the sludge water, thereby achieving preliminary dehydration of the sludge water; S3: After the sludge water is centrifugally dehydrated, the centrifugal dehydration component 42 stops working, and then the two cylinders 45 are controlled to make the two extrusion dehydration components 46 move toward each other and contact the centrifugal dehydration component 42, so that the two extrusion dehydration components 46 squeeze and dehydrate the sludge water inside the centrifugal dehydration component 42, thereby further improving the dehydration effect of the sludge water; S4: After the extrusion dehydration is completed, the separated water is introduced into the filter 5 through the drainage pipe 44 for filtration, so that some impurities mixed in the water can be filtered out, thereby improving the treatment quality of the sludge water. Embodiment 2:

[0019] Reference Figure 1-5As another preferred embodiment of the present invention, the difference from the embodiment 1 is that the inner sides of the plurality of stirring rods 262 are all rotatably mounted with a first rotating shaft 263, the first rotating shaft 263 penetrates the stirring rod 262 and extends to the inner side of the mounting sleeve 261, a stirring impeller 264 is fixedly mounted on one end of the first rotating shaft 263, a first bevel gear 265 is fixedly mounted on the other end of the first rotating shaft 263, a second rotating shaft 266 penetrating therethrough is rotatably mounted on the inner side of the rotating sleeve 25, a plurality of second bevel gears 267 corresponding to the mounting sleeve 261 are fixedly mounted on the second rotating shaft 266, the plurality of second bevel gears 267 are respectively located in the corresponding mounting sleeves 261, and all the plurality of first bevel gears 265 are aligned with the corresponding second bevel gears 267 meshing; through the rotation of the rotating sleeve 25, all the mounting sleeves 261 can be rotated synchronously, which makes all the stirring rods 262 on the mounting sleeve 261 rotate axially in the horizontal direction, so that the disinfectant and the sludge water are fully mixed in the horizontal direction; through the rotation of the second rotating shaft 266, all the second bevel gears 267 can be rotated synchronously, which makes all the first bevel gears 265 rotate synchronously, so that all the first rotating shafts 263 rotate synchronously, and all the stirring impellers 264 rotate in the vertical direction, so that the disinfectant and the sludge water can be fully mixed in the vertical direction, which can greatly improve the mixing effect of the disinfectant and the sludge water, and also can improve the disinfection effect; A first driving member 27 is installed on the top of the mixing drum 21, and the first driving member 27 includes a first motor 271, a first gear 272, a second gear 273 and a first ring gear 274; the first motor 271 is fixedly installed on the top of the mixing drum 21, the first gear 272 is fixedly installed on the output shaft of the first motor 271, the second gear 273 is rotatably installed on the top of the mixing drum 21 and meshes with the first gear 272, and the first ring gear 274 is fixedly installed on the top of the rotating sleeve 25 and meshes with the second gear 273; a third gear 275 is also fixedly installed on the output shaft of the first motor 271, and a fourth gear 276 is fixedly installed on the top of the second rotating shaft 266, and the fourth gear 276 meshes with the third gear 275.

[0020] Working principle: First, the sludge water is introduced into the mixing drum 21 through the water inlet pipe 22, and then the disinfectant is introduced into the mixing drum 21 through the agent conduit 23 to mix with the sludge water, and then the first motor 271 is started to rotate the first gear 272, which makes the second gear 273 rotate synchronously, and also makes the first gear ring 274 rotate, so that the rotating sleeve 25 rotates, and then all the stirring rods 262 are axially rotated in the horizontal direction to realize horizontal stirring; The first motor 271 drives the third gear 275 to rotate at the same time, which makes the fourth gear 276 rotate synchronously, and the second shaft 266 rotates, so that all the second bevel gears 267 rotate synchronously, which makes all the first bevel gears 265 rotate synchronously, so that all the first shafts 263 rotate synchronously, and all the stirring impellers 264 rotate in the vertical direction, thereby realizing vertical stirring. The entire horizontal stirring and vertical directions share a driving source, which greatly reduces the cost of use. Embodiment 3:

[0021] Reference Figure 1-10 As another preferred embodiment of the present invention, the difference from Embodiment 2 is that the centrifugal dehydration element 42 includes a rotating seat 421 and a cloth bag 422; the rotating seat 421 is rotatably mounted on the top of the installation box 41, and the cloth bag 422 is fixedly mounted on the inner side of the rotating seat 421 and is located directly below the outlet end of the water guide pipe 43; a second gear ring 423 is fixedly mounted on the top of the rotating seat 421, and a fifth gear 424 is rotatably mounted on the top of the installation box 41, the fifth gear 424 is meshed with the second gear ring 423, a second pulley 425 is coaxially fixedly mounted on the fifth gear 424, and a first pulley 277 is also fixedly mounted on the output shaft of the first motor 271. The first pulley 277 is connected to the second pulley 425 through a belt drive; the sludge water is introduced into the cloth bag 422 through the water pipe 43, and the cloth bag 422 can prevent the sludge from passing through but allow water to pass through, so that the sludge water can be initially filtered; when the first motor 271 is started, it can drive the first pulley 277 to rotate, which makes the second pulley 425 drive the fifth gear 424 to rotate, and also makes the second gear ring 423 rotate synchronously, so that the rotating seat 421 drives the cloth bag 422 to rotate centrifugally, and then the moisture in the sludge water of the cloth bag 422 can be removed, and at the same time, the water with a high solubility in the sludge can be removed, which greatly improves the dehydration effect.

[0022] The extrusion dehydration component 46 includes a movable frame 461, which is fixedly installed at the output end of the corresponding cylinder 45 and located on the inner side of the installation box 41. Both ends of the movable frame 461 are provided with slide grooves 462, and the two slide grooves 462 are arranged in parallel along the vertical direction. A movable shaft 463 is movably installed between the two slide grooves 462, and a pressure roller 464 is fixedly installed on the movable shaft 463. The pressure roller 464 can contact the cloth bag 422. Both ends of the movable shaft 463 are fixedly installed with a travel gear 465, and both ends of the movable frame 461 are fixedly installed with a vertically arranged toothed plate 466, two traveling gears 465 mesh with corresponding tooth plates 466; a worm wheel 467 is fixedly mounted on the end of the movable shaft 463, and a worm 468 is rotatably mounted on the end of the movable frame 461, which is arranged in the vertical direction and meshes with the worm wheel 467; by controlling the two cylinders 45, the two movable frames 461 move toward each other, so that the two pressure rollers 464 can contact with the cloth bag 422 and squeeze each other, so that the water in the sludge inside the cloth bag 422 can be squeezed out and filtered out from the cloth bag 422, which can further improve the effect of sludge dehydration; A second driving member 47 is installed on the inner wall of the installation box 41. The second driving member 47 includes a sleeve shaft 471, which is rotatably installed on the inner side of the installation box 41. Both ends of the sleeve shaft 471 are slidably installed with plug shafts 472. One end of the two plug shafts 472 is rotatably connected to the two movable frames 461 respectively. A limiting strip 473 is fixedly installed on the plug shaft 472. The ends of the two plug shafts 472 are fixedly installed with a fourth bevel gear 474. A third bevel gear 469 is fixedly installed on the top of the worm 468. The third bevel gear 469 is meshed with the corresponding fourth bevel gear 474. A fifth bevel gear 475 is fixedly installed on the middle part of the sleeve shaft 471. A second motor 476 is fixedly installed on the outer side of the installation box 41. The second motor 476 is a servo motor and its output shaft can perform periodic reciprocating rotation; the output shaft of the second motor 476 is fixedly installed with a sixth bevel gear 477, which is meshed with the fifth bevel gear 475.

[0023] Working principle: After turning off the first motor 271, start the second motor 476 to rotate the sixth bevel gear 477, which makes the fifth bevel gear 475 rotate synchronously, and also makes the sleeve shaft 471 rotate, so that the two sleeve shafts 471 drive the corresponding fourth bevel gear 474 to rotate synchronously, which makes the third bevel gear 469 drive the corresponding worm 468 to rotate synchronously, which makes the worm gear 467 drive the movable shaft 463 and the pressure roller 464 to rotate, and also makes the traveling gear 465 rotate, so that the traveling gear 465 rolls along the corresponding tooth plate 466, and then makes the pressure roller 464 translate in the vertical direction. Since the second motor 476 is a servo motor and the output shaft can rotate back and forth periodically, the pressure roller 464 can reciprocate in the vertical direction, which makes the two pressure rollers 464 repeatedly squeeze the sludge in the cloth bag 422 in the vertical direction, which can further improve the dehydration effect of the sludge.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A method for dewatering sludge for water supply and drainage, characterized in that: The water supply and drainage sludge dehydration treatment method is implemented by a water supply and drainage sludge dehydration treatment device, the water supply and drainage sludge dehydration treatment device comprising a disinfection mechanism (2), a sludge pump (3), a dehydration mechanism (4) and a filter (5); the water supply and drainage sludge dehydration treatment method comprises the following steps; S1: introducing the sludge water into the mixing barrel (21) through the water inlet pipe (22), then introducing the disinfectant into the mixing barrel (21) through the agent conduit (23) to mix with the sludge water, and then stirring the mixed liquid through the stirring element (26); S2: starting the sludge pump (3) to guide the sludge water in the mixing cylinder (21) into the water guide pipe (43) through the sludge water guide pipe (24), and then guiding the sludge water into the centrifugal dehydration element (42) through the water guide pipe (43) to perform preliminary dehydration of the sludge water; S3: After the sludge water has been centrifugally dehydrated, the centrifugal dehydration component (42) is stopped, so that the two squeezing dehydration components (46) squeeze and dehydrate the sludge water inside the centrifugal dehydration component (42); S4: After the extrusion and dehydration is completed, the separated water is introduced into the filter (5) through the drainage pipe (44) for filtration.

2. The method for dewatering sludge for water supply and drainage according to claim 1, characterized in that: The disinfection mechanism (2) comprises a mixing cylinder (21), the mixing cylinder (21) being fixedly mounted on one end of the top of the base (1), a water inlet pipe (22) being fixedly mounted on the outside of the mixing cylinder (21), a medicine conduit (23) being mounted below the water inlet pipe (22), the medicine conduit (23) being fixedly connected to the mixing cylinder (21), a rotating sleeve (25) being rotatably mounted on the inside of the mixing cylinder (21), a plurality of stirring members (26) being mounted on the rotating sleeve (25), and the plurality of stirring members (26) being arranged along a vertical axis. The bottom end of the mixing drum (21) is fixedly mounted with a mud and water outlet pipe (24); the sludge pump (3) is fixedly mounted on the base (1); the inlet end of the sludge pump (3) is connected to the mud and water outlet pipe (24); the stirring member (26) comprises a mounting sleeve (261); the mounting sleeve (261) is fixedly mounted on the rotating sleeve (25); a plurality of stirring rods (262) are fixedly mounted on the outer side of the mounting sleeve (261); the plurality of stirring rods (262) are equidistantly distributed around the mounting sleeve (261).

3. The method for dewatering sludge for water supply and drainage according to claim 2, characterized in that: A first rotating shaft (263) is rotatably mounted on the inner sides of the plurality of stirring rods (262); the first rotating shaft (263) penetrates the stirring rod (262) and extends to the inner side of the mounting sleeve (261); a stirring impeller (264) is fixedly mounted on one end of the first rotating shaft (263); a first bevel gear (265) is fixedly mounted on the other end of the first rotating shaft (263); a second rotating shaft (266) is rotatably mounted on the inner side of the rotating sleeve (25) penetrating therethrough; a plurality of second bevel gears (267) corresponding to the mounting sleeve (261) are fixedly mounted on the second rotating shaft (266); the plurality of second bevel gears (267) are respectively located in the corresponding mounting sleeves (261); and all the plurality of first bevel gears (265) are meshed with the corresponding second bevel gears (267).

4. The method for dewatering sludge for water supply and drainage according to claim 3, characterized in that: A first driving member (27) is installed on the top of the mixing cylinder (21), and the first driving member (27) comprises a first motor (271), a first gear (272), a second gear (273) and a first gear ring (274); the first motor (271) is fixedly installed on the top of the mixing cylinder (21), the first gear (272) is fixedly installed on the output shaft of the first motor (271), the second gear (273) is rotatably installed on the top of the mixing cylinder (21) and meshes with the first gear (272), and the first gear ring (274) is fixedly installed on the top of the rotating sleeve (25) and meshes with the second gear (273).

5. The method for dewatering sludge for water supply and drainage according to claim 4, characterized in that: A third gear (275) is also fixedly mounted on the output shaft of the first motor (271), and a fourth gear (276) is fixedly mounted on the top of the second rotating shaft (266), the fourth gear (276) meshing with the third gear (275).

6. The method for dewatering sludge for water supply and drainage according to claim 5, characterized in that: The dewatering mechanism (4) comprises a mounting box (41), a centrifugal dewatering component (42), a water guide pipe (43), a drainage pipe (44), two cylinders (45) and two extrusion dewatering components (46); the mounting box (41) is fixedly mounted on the other end of the top of the base (1); the water guide pipe (43) is fixedly mounted on the top of the mounting box (41) and its inlet end is connected to the outlet end of the sludge pump (3); the centrifugal dewatering component (42) is mounted on the inner side of the mounting box (41) and is located below the water guide pipe (43); the two cylinders (45) are respectively The centrifugal dehydration component (42) is fixedly mounted at both ends of the installation box (41), and the output ends are respectively connected to two extrusion dehydration components (46); the drainage pipe (44) is fixedly mounted at the bottom of the installation box (41); and the filter (5) is fixedly mounted at the outlet end of the drainage pipe (44); the centrifugal dehydration component (42) comprises a rotating seat (421) and a cloth bag (422); the rotating seat (421) is rotatably mounted on the top of the installation box (41); and the cloth bag (422) is fixedly mounted on the inner side of the rotating seat (421) and is located directly below the outlet end of the water guide pipe (43).

7. The method for dewatering sludge for water supply and drainage according to claim 6, characterized in that: A second gear ring (423) is fixedly mounted on the top of the rotating seat (421); a fifth gear (424) is rotatably mounted on the top of the mounting box (41); the fifth gear (424) is meshed with the second gear ring (423); a second pulley (425) is coaxially fixedly mounted on the fifth gear (424); a first pulley (277) is also fixedly mounted on the output shaft of the first motor (271); the first pulley (277) and the second pulley (425) are connected via a belt drive.

8. The method for dewatering sludge for water supply and drainage according to claim 7, characterized in that: The extrusion dewatering component (46) comprises a movable frame (461), the movable frame (461) being fixedly mounted at the output end of the corresponding cylinder (45) and being located inside the mounting box (41), the movable frame (461) being provided with a slide groove (462) at both ends, the two slide grooves (462) being arranged in parallel along the vertical direction, a movable shaft (463) being movably mounted between the two slide grooves (462), a pressure roller (464) being fixedly mounted on the movable shaft (463), the pressure roller (464) being capable of contacting the cloth bag (422), a travel gear (465) being fixedly mounted at both ends of the movable shaft (463), a vertically arranged tooth plate (466) being fixedly mounted at both ends of the movable frame (461), the two travel gears (465) being meshed with the corresponding tooth plate (466).

9. The method for dewatering sludge for water supply and drainage according to claim 8, characterized in that: A worm wheel (467) is fixedly mounted on the end of the movable shaft (463), and a worm (468) is rotatably mounted on the end of the movable frame (461); the worm (468) is arranged in a vertical direction and meshes with the worm wheel (467).

10. The method for dewatering sludge for water supply and drainage according to claim 9, characterized in that: A second driving member (47) is mounted on the inner wall of the installation box (41). The second driving member (47) comprises a sleeve shaft (471). The sleeve shaft (471) is rotatably mounted on the inner side of the installation box (41). Both ends of the sleeve shaft (471) are slidably mounted with plug shafts (472). One end of each of the two plug shafts (472) is rotatably connected to two movable frames (461), respectively. A limit strip (473) is fixedly mounted on each of the plug shafts (472). The ends of each of the two plug shafts (472) are fixedly mounted with a fourth A bevel gear (474) is fixedly mounted on the top of the worm (468) and the third bevel gear (469) is meshed with the corresponding fourth bevel gear (474). A fifth bevel gear (475) is fixedly mounted on the middle of the sleeve shaft (471). A second motor (476) is fixedly mounted on the outer side of the mounting box (41). A sixth bevel gear (477) is fixedly mounted on the output shaft of the second motor (476) and the sixth bevel gear (477) is meshed with the fifth bevel gear (475).

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