A sludge auxiliary treatment device for urban domestic sewage treatment

Abstract

The present invention relates to the technical field of sludge auxiliary treatment, and discloses a sludge auxiliary treatment device for urban domestic sewage treatment, comprising a processing box and a cover plate, the cover plate is fixedly connected to the top of the processing box, the outer wall of the processing box is symmetrically connected with water inlet holes, the bottom of the processing box is provided with a drainage hole, the inner side of the processing box is provided with a dirt removal mechanism, and the top of the drainage hole is provided with a dirt removal mechanism. The sludge auxiliary treatment device for urban domestic sewage treatment compresses the sludge through an extrusion plate and then drives the bottom plate to centrifugally dehydrate the sludge through a telescopic rotating rod, which helps to crush larger particles in the sludge, improves the compactness of the sludge structure, reduces the pores and gaps in the sludge, thereby enhancing the interaction between the sludge particles, and avoiding water being absorbed by the sludge particles again, which not only improves the separation effect of water, but also reduces the time and energy consumption of centrifugal dehydration.

Description

Technical Field

[0001] The invention relates to the technical field of sludge auxiliary treatment, in particular to a sludge auxiliary treatment device for urban domestic sewage treatment. Background Art

[0002] Auxiliary sludge treatment refers to a series of technical measures to improve the dewatering performance and subsequent treatment effects of sludge by adding filter aids, adjusting pH value, and performing pretreatment during the sludge treatment process. These measures are aimed at improving the dewatering efficiency of sludge, reducing water content, reducing treatment costs, and ensuring the stabilization and harmless treatment of sludge.

[0003] A Chinese invention patent with publication number CN118307173B discloses a sludge recycling device for sewage treatment, comprising: a sewage storage component for storing sewage, a filter press component connected to the sewage storage component, and a high-pressure feed pump component for pumping sewage into the filter press component; the sewage storage component comprises a bucket, a water outlet pipe connected to the bottom of the bucket, a hydraulic structure in the bucket, and a sludge pretreatment structure arranged in the water outlet pipe. The device of the present invention can pre-treat the sludge contained in the sewage before the sewage is filtered, grind and crush the large sludge, avoid clogging the pipeline, and improve the subsequent filter pressing efficiency; in addition, through the arrangement of the filter cloth, waterproof cloth and water inlet hole, the sewage in the filter chamber can be squeezed by water during the filter pressing process, further assisting the filter pressing, and improving the filter pressing efficiency and effect; at the same time, the filter cloth made of flexible material is effectively cleaned by the cleaning mechanism, which is convenient for collecting and recycling the sludge plate after the filter pressing, and avoids the sludge residue affecting the recycling rate.

[0004] In addition, since urban domestic sewage treatment produces a large amount of sludge, during the sludge concentration process, as the sludge concentration increases, the anaerobic environment intensifies, and the decomposition of organic matter produces more gases such as hydrogen sulfide, ammonia and methane. During the sludge dehydration process, the structure and environment of the sludge are changed by extrusion, so that the gas originally wrapped in the sludge is discharged, which will then produce harmful gases to pollute the environment. Even if the sludge is crushed through pretreatment, there are still particles of different sizes inside the sludge. Therefore, filtering through a filter will affect the water output efficiency. In addition, since the sludge also contains water, the dehydration efficiency is not high if it is dehydrated by the sewage's own sedimentation. Therefore, the sludge recycling device for sewage treatment disclosed in Chinese invention patent CN118307173B cannot treat harmful gases or improve the efficiency of sludge dehydration. Summary of the invention

[0005] 1. Technical issues to be solved

[0006] In view of the shortcomings of the prior art, the present invention provides a sludge auxiliary treatment device for urban domestic sewage treatment, which has the advantages of multi-stage dehydration and absorption of harmful gases, and solves the problems of poor sludge dehydration effect and harmful gas leakage.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a sludge auxiliary treatment device for urban domestic sewage treatment, comprising a processing box and a cover plate, the cover plate being fixedly connected to the top of the processing box, the outer wall of the processing box being symmetrically connected with water inlet holes, the bottom of the processing box being provided with a drainage hole, a decontamination mechanism being provided on the inner side of the processing box, and a decontamination mechanism being provided on the top of the drainage hole.

[0009] Preferably, the dirt removing mechanism includes an annular support plate symmetrically fixedly connected to the inner wall of the processing box, a limiting slide groove is provided on the inner wall of the annular support plate, a slide plate is slidably connected inside the limiting slide groove, a slide rod is symmetrically penetrated and slidably connected on the outer wall of the slide plate, a spring is sleeved on the outer wall of the slide rod, a resistance rod is slidably connected through the middle part of the slide plate arranged at the top of the processing box, a slot is provided at the bottom end of the resistance rod, a lower groove cylinder is fixedly connected between the two annular support plates, an upper groove cylinder is fixedly connected to the top end of the annular support plate arranged at the top of the processing box, and mounting holes are symmetrically penetrated and fixedly connected on the outer wall of the upper groove cylinder.

[0010] Preferably, the dirt removal mechanism also includes a base plate fixedly connected to the top end of the sliding rod, a block is fixedly connected to the middle part of the upper surface of the base plate, a plurality of fixed rods are fixedly connected to the upper surface of the base plate in a circular array, a centrifugal filter slot plate is fixedly connected to the outer wall of the base plate, a telescopic rotating rod is passed through and fixedly connected to the middle part of the cover plate, a fixing frame is fixedly connected to the outer wall of the fixed end of the telescopic rotating rod, an extrusion plate is fixedly connected to the bottom end of the fixing frame, a plurality of slots are arranged in a circular array inside the extrusion plate, and a centrifugal filter slot plate 2 is fixedly connected to the outer wall of the base plate arranged at the bottom of the processing box.

[0011] Preferably, the water inlet hole is fixedly connected to the mounting hole, the centrifugal filter plate 1 slides vertically inside the upper groove cylinder, the centrifugal filter plate 2 slides vertically inside the lower groove cylinder, and the two ends of the spring are fixedly connected to the slide plate and the bottom plate respectively.

[0012] Preferably, a card slot is provided at the bottom of the telescopic end of the telescopic rotating rod, the size of the card block matches the size of the card slot, and the slot hole arranged inside the upper groove cylinder matches the size of the fixing rod.

[0013] Preferably, the size of the filter holes opened inside the second centrifugal filter plate is smaller than the size of the filter holes opened inside the first centrifugal filter plate, the bottom end of the resistance rod is fixedly connected to an extrusion plate, the size of the filter holes opened in the first centrifugal filter plate is matched with the size of the slot holes opened in the extrusion plate fixedly connected to the bottom end of the resistance rod, the slot holes arranged inside the lower groove cylinder are matched with the size of the fixing rod one, and the number of the fixing rod one is the same as the number of the slot holes.

[0014] Preferably, the decontamination mechanism includes a gear 1 fixedly connected to the top end of the telescopic rotating rod, an air duct is fixedly connected to the outer wall of the processing box, a plurality of air holes are arranged in a circular array at the bottom end of the air duct, activated carbon is fixedly connected to the inner wall of the air duct in a linear array, a fan box is fixedly connected to the top end of the air duct, a protective frame is fixedly connected to the top end of the fan box, a fan blade is rotatably connected to the middle part of the protective frame, a fixed rod 2 is fixedly connected to the top end of the fixed rod 2, a gear 2 is fixedly connected to the top end of the fixed rod 2, and a toothed belt is connected between the gear 2 and the gear 1.

[0015] Preferably, the air duct is communicated with the interior of the fan box.

[0016] Preferably, the size of the activated carbon is compatible with the inner cavity size of the airway tube.

[0017] Preferably, the size of the fan blades is adapted to the size of the inner cavity of the fan box.

[0018] Beneficial Effects

[0019] Compared with the prior art, the present invention provides a sludge auxiliary treatment device for urban domestic sewage treatment, which has the following beneficial effects:

[0020] 1. After the sludge is compressed by the extrusion plate, the telescopic rotating rod drives the bottom plate to centrifugally dehydrate the sludge, which helps to crush larger particles in the sludge, improve the compactness of the sludge structure, reduce the pores and gaps in the sludge, thereby enhancing the force between the sludge particles and avoiding the water being absorbed by the sludge particles again. This not only improves the water separation effect, but also reduces the time and energy consumption of centrifugal dehydration.

[0021] 2. The fan blades drive the harmful gas to contact with the activated carbon, so that the activated carbon absorbs the harmful gas, avoiding the explosion caused by excessive concentration of harmful combustible gas inside the device, preventing the sulfide inside the harmful gas from causing pipeline corrosion, and preventing the harmful gas from spreading into the air, thus ensuring the surrounding air quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention;

[0023] Figure 2 This is a schematic diagram of the partial structure of a decontamination mechanism in a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention;

[0024] Figure 3 This is a schematic diagram of the position relationship between the annular support plate and the mounting hole in a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention;

[0025] Figure 4 This is a schematic diagram of the position relationship between the spring and the slot in a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention;

[0026] Figure 5 This is a schematic diagram of the position relationship between the slide plate and the bottom plate in a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention;

[0027] Figure 6 This is a schematic diagram of the position relationship between the card slot and the fixing frame in a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention;

[0028] Figure 7 A schematic diagram of the positional relationship between a bottom plate and a centrifugal filter tank plate in a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention;

[0029] Figure 8 This is a schematic diagram of the partial structure of a decontamination mechanism in a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention;

[0030] Fig. 9 This is a schematic diagram of the position relationship between the air guide pipe and the fan blades in a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention;

[0031] Fig.10 This is a schematic diagram of the position relationship between the air guide pipe and the protective frame in a sludge auxiliary treatment device for urban domestic sewage treatment proposed by the present invention.

[0032] In the figure: 1. processing box; 2. cover plate; 3. water inlet hole; 4. drainage hole; 5. decontamination mechanism; 51. annular support plate; 52. limit slide groove; 53. slide plate; 54. slide bar; 55. spring; 56. resistance rod; 57. slot; 58. lower groove cylinder; 59. upper groove cylinder; 510. mounting hole; 511. bottom plate; 512. block; 513. fixing rod one; 514. centrifugal filter slot plate one; 515. telescopic rotating rod; 516. fixing frame; 517. extrusion plate; 518. slot hole; 519. centrifugal filter slot plate two; 6. decontamination mechanism; 61. gear one; 62. air guide tube; 63. air hole; 64. activated carbon; 65. fan box; 66. protective frame; 67. fan blade; 68. fixing rod two; 69. gear two; 610. toothed belt. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example:

[0035] See attached Figures 1 to 10 As shown, a sludge auxiliary treatment device for urban domestic sewage treatment includes a processing box 1 and a cover plate 2, the cover plate 2 is fixedly connected to the top of the processing box 1, the outer wall of the processing box 1 is symmetrically connected with water inlet holes 3, the bottom of the processing box 1 is provided with a drainage hole 4, the inner side of the processing box 1 is provided with a decontamination mechanism 5, and the top of the drainage hole 4 is provided with a decontamination mechanism 6.

[0036] Furthermore, the dirt removing mechanism 5 includes an annular support plate 51 symmetrically fixedly connected to the inner wall of the processing box 1, a limiting slide groove 52 is provided on the inner wall of the annular support plate 51, a slide plate 53 is slidably connected inside the limiting slide groove 52, a slide rod 54 is symmetrically penetrated and slidably connected on the outer wall of the slide plate 53, a spring 55 is sleeved on the outer wall of the slide rod 54, a resistance rod 56 is slidably connected through the middle of the slide plate 53 arranged at the top of the processing box 1, a slot 57 is provided at the bottom end of the resistance rod 56, a lower groove cylinder 58 is fixedly connected between the two annular support plates 51, an upper groove cylinder 59 is fixedly connected to the top end of the annular support plate 51 arranged at the top of the processing box 1, the slot hole 518 provided inside the upper groove cylinder 59 is matched with the size of the fixing rod 513, and a mounting hole 510 is symmetrically penetrated and fixedly connected on the outer wall of the upper groove cylinder 59, and the water inlet 3 is fixedly connected to the mounting hole 510.

[0037] The bottom end of the telescopic rotating rod 515 is provided with a card slot 57, and the bottom end of the telescopic rotating rod 515 is provided with a card slot 57. A plurality of slots 518 are arranged in a circular array inside 517. The size of the filter holes opened in the centrifugal filter slot plate 1 514 matches the size of the slots 518 opened in the extrusion plate 517 fixedly connected to the bottom end of the abutment rod 56. The slots 518 arranged inside the lower groove cylinder 58 match the size of the fixing rod 1 513. The number of the fixing rod 1 513 is the same as that of the slots 518. A centrifugal filter slot plate 2 519 is fixedly connected to the outer wall of the bottom plate 511 arranged at the bottom of the processing box 1. The size of the filter holes opened in the centrifugal filter slot plate 2 519 is smaller than the size of the filter holes opened in the centrifugal filter slot plate 1 514. The centrifugal filter slot plate 2 519 slides vertically inside the lower groove cylinder 58. The sludge inside the centrifugal filter slot plate 1 514 is squeezed by the extrusion plate 517 and the card slot 57 is engaged with the card block 512, so that the sludge can be dehydrated by centrifugal rotation.

[0038] It should be noted that there is an electrical connection between the telescopic rotating rod 515 and the external control device, so that the telescopic rotating rod 515 can be extended and rotated to be connected to the outer wall of the cover plate 2.

[0039] Furthermore, the decontamination mechanism 6 includes a gear 61 fixedly connected to the top of the telescopic rotating rod 515, an air duct 62 is fixedly connected to the outer wall of the processing box 1, and the air duct 62 is connected to the inside of the fan box 65. The bottom end of the air duct 62 is arranged in a circular array and has a plurality of air holes 63. The inner wall of the air duct 62 is fixedly connected to activated carbon 64 arranged in a linear array. The size of the activated carbon 64 is adapted to the size of the inner cavity of the air duct 62. The top of the air duct 62 is fixedly connected to the fan box 65. The top of the fan box 65 is fixedly connected to the top of the fan box 65. A protective frame 66 is fixedly connected, and a fan blade 67 is rotatably connected to the middle of the protective frame 66. The size of the fan blade 67 is matched with the inner cavity size of the fan box 65. The top of the fan blade 67 is fixedly connected to a fixed rod 2 68, and the top of the fixed rod 2 68 is fixedly connected to a gear 2 69. A toothed belt 610 is connected between the gear 2 69 and the gear 1 61. The fan blade 67 is driven to rotate by the telescopic rotating rod 515, so that the fan blade 67 discharges the harmful gas inside the processing box 1, thereby achieving the effect of the harmful gas being absorbed after passing through the activated carbon 64.

[0040] It should be noted that: at the beginning of the work, the drainage hole 4 is in a blocked state, and the bottom of the processing box 1 is set to be an inclined surface inclined toward the drainage hole 4.

[0041] The following is the working process and principle of the above embodiment:

[0042] The initial state is as follows: the telescopic rotating rod 515 is in an unextended state, the spring 55 is in an uncontracted state, the fixing rod 1 513 does not block the slot 518, and the centrifugal filter slot plate 1 514 and the centrifugal filter slot plate 2 519 do not move to the inside of the annular support plate 51.

[0043] The working steps are as follows:

[0044] First, the personnel connect the sludge conveying pipe with the water inlet hole 3, so that the sludge is intermittently put into the interior of the upward groove cylinder 59 through the water inlet hole 3, so that the sludge enters the interior of the centrifugal filter tank plate 514 through the slot hole 518 opened in the extrusion plate 517, and finally the sludge falls on the upper surface of the bottom plate 511 for accumulation. Then, the personnel control the telescopic rotating rod 515 to start extending downward through the external control device, so that the telescopic end of the telescopic rotating rod 515 drives the fixing frame 516 to move downward synchronously inside the centrifugal filter tank plate 514, so that the telescopic rotating rod 515 drives the slot 57 to move synchronously, so that the slot 57 is clamped on the outer wall of the clamping block 512, so that the fixing rod 513 enters the interior of the slot hole 518, and the sludge accumulated on the upper surface of the bottom plate 511 is accumulated. The closed extrusion is performed, so that the sludge drives the bottom plate 511 to move downward synchronously under the extrusion action of the extrusion plate 517, so that the bottom plate 511 drives the centrifugal filter slot plate 514 to move to the inside of the annular support plate 51, and at the same time, the bottom plate 511 drives the slide bar 54 to slide downward inside the slide plate 53, and at the same time squeezes the spring 55. Then, the personnel controls the telescopic rotating rod 515 to start rotating on the top of the cover plate 2 through an external control device, so that the telescopic rotating rod 515 drives the card slot 57 to rotate synchronously, so that the card slot 57 drives the bottom plate 511 to rotate synchronously through the card connection between the card block 512, so that the bottom plate 511 drives the centrifugal filter slot plate 514 to rotate synchronously inside the annular support plate 51, so that the sludge in the upper groove cylinder 59 starts to perform centrifugal motion.

[0045] Subsequently, when the sludge filtered inside the upper groove cylinder 59 falls into the interior of the lower groove cylinder 58, the sludge falls into the top of the squeezing plate 517 set on the top of the centrifugal filter tank plate 519, and the sludge on the top of the squeezing plate 517 falls into the interior of the centrifugal filter tank plate 519 through the slot hole 518, and finally accumulates on the top of the bottom plate 511. At this time, the personnel again controls the telescopic rotating rod 515 to continue to extend through the external control device, so that the telescopic rotating rod 515 drives the resistance rod 56 to start moving downward through the block 512 and the bottom plate 511 inside the upper groove cylinder 59, so that the resistance rod 56 drives the squeezing plate 517 connected at the bottom end to move downward inside the centrifugal filter tank plate 519, so that the fixed rod 1 513 set inside the upper groove cylinder 59 enters the interior of the slot hole 518, and squeezes the sludge inside the centrifugal filter tank plate 519 through the squeezing plate 517, so that the sludge drives the bottom plate 511 fixedly connected to the centrifugal filter tank plate 519 to move downward. The bottom plate 511 drives the sliding rod 54 to slide downward inside the slide plate 53, and the spring 55 is compressed until the centrifugal filter slot plate 519 moves to the inside of the annular support plate 51 set at the bottom of the processing box 1. Then the personnel controls the telescopic rotating rod 515 to start rotating again through the external control device, so that the telescopic rotating rod 515 drives the centrifugal filter slot plate 519 to rotate synchronously through the resistance rod 56, so that the sludge inside the centrifugal filter slot plate 519 is centrifugally rotated again under the squeezing action of the squeezing plate 517, and then the sludge is dehydrated; after the sludge is compressed by the squeezing plate 517, the telescopic rotating rod 515 drives the bottom plate 511 to centrifugally dehydrate the sludge, which helps to crush larger particles in the sludge, improves the compactness of the sludge structure, reduces the pores and gaps in the sludge, thereby enhancing the force between the sludge particles, and avoiding water being absorbed by the sludge particles again, which not only improves the water separation effect, but also reduces the time and energy consumption of centrifugal dehydration.

[0046] During each rotation of the telescopic rotating rod 515, the telescopic rotating rod 515 drives the gear 1 61 to rotate synchronously, and the gear 1 61 drives the gear 2 69 to rotate synchronously through the toothed belt 610 connected thereto, and the gear 2 69 drives the fixed rod 2 68 to rotate synchronously, and the fixed rod 2 68 drives the fan blade 67 to rotate at the bottom of the protective frame 66, so that the fan blade 67 is driven by the motor to rotate the fan blade 67, thereby fanning the air to generate airflow and realize the process of air convection. When the fan blade 67 rotates, the flat sheet contacts the air and pushes the air from one side of the fan blade 67 to the other side to form an airflow. In this process, the fan blade 67 generates friction with the air, which accelerates the air and forms an airflow. Due to the thin sheet on the fan blade 67 It is in the shape of an inclined plane, which pushes the air to one side of the inclined plane, thereby generating a forward pressure. At the edge and tip of the fan blade 67, due to the increase in air flow rate, the pressure decreases, forming a negative pressure, attracting the surrounding air to flow in, and enhancing the air flow, so that the harmful gas inside the processing box 1 enters the inside of the air guide pipe 62 through the air hole 63 under the action of the fan blade 67, so that the harmful gas passes through the activated carbon 64 in turn, and the fan blade 6 drives the harmful gas to contact with the activated carbon 64, so that the activated carbon 64 absorbs the harmful gas, avoiding explosion due to excessive concentration of harmful combustible gas inside the device, preventing sulfide inside the harmful gas from causing pipeline corrosion, and avoiding the diffusion of harmful gas into the air, thereby ensuring the surrounding air quality.

[0047] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sludge auxiliary treatment device for urban domestic sewage treatment, comprising a processing box (1) and a cover plate (2), wherein the cover plate (2) is fixedly connected to the top of the processing box (1), characterized in that: The outer wall of the processing box (1) is symmetrically connected with water inlet holes (3), the bottom of the processing box (1) is provided with a drainage hole (4), the inner side of the processing box (1) is provided with a decontamination mechanism (5), and the top of the drainage hole (4) is provided with a decontamination mechanism (6).

2. The sludge auxiliary treatment device for urban domestic sewage treatment according to claim 1, characterized in that: The dirt removal mechanism (5) comprises an annular support plate (51) symmetrically fixedly connected to the inner wall of the processing box (1), a limiting sliding groove (52) is provided on the inner wall of the annular support plate (51), a slide plate (53) is slidably connected inside the limiting sliding groove (52), a slide bar (54) is symmetrically penetrated and slidably connected on the outer wall of the slide plate (53), a spring (55) is sleeved on the outer wall of the slide bar (54), a resistance rod (56) is slidably connected through the middle part of the slide plate (53) arranged at the top of the processing box (1), a clamping groove (57) is provided at the bottom end of the resistance rod (56), a lower groove cylinder (58) is fixedly connected between the two annular support plates (51), an upper groove cylinder (59) is fixedly connected at the top end of the annular support plate (51) arranged at the top of the processing box (1), and a mounting hole (510) is symmetrically penetrated and fixedly connected on the outer wall of the upper groove cylinder (59).

3. A sludge auxiliary treatment device for urban domestic sewage treatment according to claim 2, characterized in that: The dirt removal mechanism (5) also includes a bottom plate (511) fixedly connected to the top end of the sliding rod (54), a block (512) fixedly connected to the middle of the upper surface of the bottom plate (511), a plurality of fixed rods (513) arranged in a circular array and fixedly connected to the upper surface of the bottom plate (511), a centrifugal filter slot plate (514) fixedly connected to the outer wall of the bottom plate (511), a telescopic rotating rod (515) passing through the middle of the cover plate (2) and fixedly connected, a fixing frame (516) fixedly connected to the outer wall of the fixed end of the telescopic rotating rod (515), an extrusion plate (517) fixedly connected to the bottom end of the fixing frame (516), a plurality of slots (518) arranged in a circular array are provided inside the extrusion plate (517), and a centrifugal filter slot plate (519) is fixedly connected to the outer wall of the bottom plate (511) arranged at the bottom of the processing box (1).

4. A sludge auxiliary treatment device for urban domestic sewage treatment according to claim 3, characterized in that: The water inlet hole (3) is fixedly connected to the mounting hole (510), the centrifugal filter plate 1 (514) slides vertically inside the upper groove cylinder (59), the centrifugal filter plate 2 (519) slides vertically inside the lower groove cylinder (58), and the two ends of the spring (55) are fixedly connected to the slide plate (53) and the bottom plate (511) respectively.

5. The sludge auxiliary treatment device for urban domestic sewage treatment according to claim 3 is characterized in that: A card slot (57) is provided at the bottom of the telescopic end of the telescopic rotating rod (515), the size of the card block (512) matches the size of the card slot (57), and the size of the slot hole (518) arranged inside the upper groove cylinder (59) matches the size of the fixing rod 1 (513).

6. The sludge auxiliary treatment device for urban domestic sewage treatment according to claim 3 is characterized in that: The size of the filter holes opened inside the second centrifugal filter slot plate (519) is smaller than the size of the filter holes opened inside the first centrifugal filter slot plate (514); the bottom end of the abutment rod (56) is fixedly connected to an extrusion plate (517); the size of the filter holes opened in the first centrifugal filter slot plate (514) matches the size of the slot holes (518) opened in the extrusion plate (517) fixedly connected to the bottom end of the abutment rod (56); the size of the slot holes (518) and the fixing rod (513) arranged inside the lower groove cylinder (58) matches each other; the number of the fixing rod (513) and the slot holes (518) is the same.

7. The sludge auxiliary treatment device for urban domestic sewage treatment according to claim 3 is characterized by: The decontamination mechanism (6) comprises a gear 1 (61) fixedly connected to the top of the telescopic rotating rod (515); an air duct (62) is fixedly connected to the outer wall of the processing box (1); a plurality of air holes (63) are arranged in a circular array at the bottom of the air duct (62); activated carbon (64) is fixedly connected to the inner wall of the air duct (62) in a linear array; a fan box (65) is fixedly connected to the top of the air duct (62); a protective frame (66) is fixedly connected to the top of the fan box (65); a fan blade (67) is rotatably connected to the middle of the protective frame (66); a fixed rod 2 (68) is fixedly connected to the top of the fan blade (67); a gear 2 (69) is fixedly connected to the top of the fixed rod 2 (68); a toothed belt (610) is connected between the gear 2 (69) and the gear 1 (61) for transmission.

8. The sludge auxiliary treatment device for urban domestic sewage treatment according to claim 7, characterized in that: The air guide pipe (62) is communicated with the interior of the fan box (65).

9. A sludge auxiliary treatment device for urban domestic sewage treatment according to claim 8, characterized in that: The size of the activated carbon (64) is adapted to the inner cavity size of the airway tube (62).

10. The sludge auxiliary treatment device for urban domestic sewage treatment according to claim 9, characterized in that: The size of the fan blade (67) is adapted to the size of the inner cavity of the fan box (65).

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