Sludge multi-section continuous reduction integrated equipment system and control process

Abstract

The invention discloses a sludge multi-section continuous reduction integrated equipment system and a control process, and belongs to the technical field of sludge treatment.The sludge multi-section continuous reduction integrated equipment system comprises efficient vertical type laminated squeezing, the efficient vertical type laminated squeezing comprises a vertical squeezing mechanism and a filtering mechanism, and the vertical squeezing mechanism comprises a squeezing assembly; the squeezing assembly is matched with the elastic assembly to filter-press and dehydrate the laminated filter cloth mud bed, mechanical pressure in the filter-pressing process can be used as driving force to control the driving column rod to be matched with the spiral groove to achieve rotation of the filter frame, the screw pitch of the spiral groove is gradually decreased upwards, and the rotating speed is changed in a slow-to-fast gradient mode. The water on the surface layer of the sludge is stably extruded in cooperation with mechanical pressure, damage and sludge leakage of a filter cake due to instant high-speed rotation are avoided, the forming quality of the filter cake is guaranteed, the filter frame accelerates to rotate in the middle and later stages of filter pressing, the centrifugal force is gradually increased, the water can deeply permeate into the filter cake, and residual water in pores of the filter cake is further separated and discharged; and gradient operation of stable forming and deep dehydration is realized.

Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, and in particular to an integrated equipment system and control process for multi-stage continuous sludge reduction. Background Technology

[0002] Sludge, as a byproduct of wastewater treatment, contains a large amount of water, organic matter, and heavy metals. If it is not effectively reduced in volume, it will occupy a lot of storage space, cause environmental pollution, and even cause secondary pollution. Therefore, multi-stage continuous sludge reduction is the core prerequisite for sludge disposal. It can significantly reduce sludge volume, facilitate subsequent transportation, landfilling, or resource utilization, and is in line with the concept of environmentally friendly disposal and resource recycling. Filter presses, commonly used in sludge reduction treatment, are widely applied in sludge dewatering due to their compact structure and large processing capacity. However, traditional filter presses rely solely on unidirectional mechanical pressure to squeeze water out of the sludge, making it difficult to fully remove moisture from the filter cake and resulting in poor volume reduction. During the filtration process, solid residues easily adhere to the surface of the filter frame, clogging the filter pores, increasing filtration resistance, reducing filtration efficiency, shortening equipment lifespan, and requiring cumbersome cleaning. Furthermore, the poor connection between filtration dewatering and filter frame cleaning hinders the formation of a synergistic effect, failing to meet the core requirements of "efficient and continuous sludge reduction, low resistance, and long-term stable operation," thus restricting the efficiency and quality of sludge reduction treatment.

[0003] To address the above problems, this invention proposes an integrated equipment system and control process for multi-stage continuous sludge reduction. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of traditional stacked filter presses, which rely solely on unidirectional mechanical pressure to squeeze water out of sludge during the filtration process. This results in insufficient removal of moisture from the filter cake, leading to poor volume reduction. Furthermore, during filtration, solid residues tend to adhere to the surface of the filter frame, clogging the filter pores and increasing filtration resistance, thus reducing filtration efficiency, shortening equipment lifespan, and requiring cumbersome cleaning. Additionally, the integration of filtration dewatering and filter frame cleaning is poor, hindering the formation of a synergistic effect. The invention proposes a multi-stage continuous sludge reduction integrated equipment system and control process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: The sludge multi-stage continuous reduction integrated equipment system includes preliminary dewatering, deep dewatering and thermal drying water intake, wherein the deep dewatering includes a high-efficiency vertical stacked press; The high-efficiency vertical stacked press includes a vertical pressing mechanism and a filtering mechanism. The vertical pressing mechanism includes a pressing component. A fixed shaft is provided below the pressing component. A spiral groove is provided on the fixed shaft. The spiral groove is slidably engaged with a drive ball rod. The drive ball rod is connected to an elastic component. The filtration mechanism includes a processing chamber, in which a filtration assembly is disposed. Cleaning components are disposed on both sides of the filtration assembly, and the lower parts of the two cleaning components are connected to a rotating component, which is disposed below the filtration assembly.

[0006] Preferably, the preliminary dewatering process is as follows: the original remaining sludge and PAM agent are added to a sludge thickening and dewatering machine for dewatering treatment, and the filtrate is sent to the sewage pipe network in the filtrate plant for treatment; The deep dewatering process is as follows: a modifier is added to a horizontal modifier tank to further stir and mix the sludge in the initial dewatering. After stirring, a trace amount of polyferric agent is added, and the sludge is then put into a high-efficiency vertical stacked press for dewatering. The filtrate is returned to the sewage pipe network in the filtrate plant. The thermal drying water intake process is as follows: the pressed sludge is conveyed by a conveyor to a low-temperature belt dryer for drying treatment. The condensate produced enters the sewage pipe network of the refrigerant pipe condensate plant, while the thermally dried sludge is transported to a dry granular sludge storage silo and periodically transported off-site for treatment.

[0007] Preferably, the pressing assembly includes a hydraulic base, on which a hydraulic device is fixedly mounted, and the bottom end of the hydraulic device is fixedly connected to a fixed shaft.

[0008] Preferably, the elastic component includes a mounting plate, on which multiple sliding sleeves are fixedly mounted. Sliding rods are slidably connected within the sliding sleeves, one of which is fixedly connected to a drive ball rod. Pressure plates are fixedly connected to the bottom ends of the multiple sliding rods, and multiple first springs are fixedly connected above the pressure plates, with the first springs fixedly connected below the sliding sleeves.

[0009] Preferably, the pitch of the spiral groove decreases from bottom to top, and the top of the spiral groove is arranged in a ring shape.

[0010] Preferably, the filtration assembly includes a mounting component, which is rotatably mounted on the processing chamber via a bearing. A filtration chamber is mounted on the mounting component, and the interior of the filtration chamber is provided with a layered filter cloth sludge bed. The pressure plate is adapted to the inner cavity of the filtration chamber.

[0011] Preferably, a plurality of auxiliary wheels are fixedly connected to the lower part of the filter chamber, the auxiliary wheels travel on wheel rails, the wheel rails are fixedly connected to the processing chamber by reinforcement components, and a discharge valve is provided at the lower part of the processing chamber.

[0012] Preferably, the rotary assembly includes a rotating shaft, which is fixedly connected to the filter chamber. A connecting frame is mounted on the rotating shaft and fixedly connected to the outer frame. The outer frame has the same length as the outer circumferential surface of the filter chamber. A torsion spring is fixedly connected between the connecting frame and the fixing member. The rotating shaft is rotatably mounted on the fixing member through a bearing, and the fixing member is fixedly connected to the processing chamber.

[0013] Preferably, the cleaning assembly includes an adjusting rod, one end of which is provided with a traveling wheel, the traveling wheel being connected to the outer frame, the adjusting rod being slidably connected in an adjusting sleeve, the adjusting sleeve being installed on the processing chamber, a second spring being fixedly connected between the adjusting sleeve and the traveling wheel, and side chambers being fixedly connected to both sides of the processing chamber. The other end of the adjusting rod is fixedly connected to a driving rod, and the top end of the driving rod is fixedly connected to a guide rod. The guide rod is slidably connected in a guide sleeve, and the guide sleeve is installed on the processing chamber. One end of the guide rod is fixedly connected to a cleaning structure, which overlaps with the filter chamber. The two cleaning structures are a brush and a scraper, respectively.

[0014] The control process for the high-efficiency vertical stacked pressing in the deep dewatering of the sludge multi-stage continuous reduction integrated equipment system includes the following steps: S1. By pressing down the elastic component with hydraulic equipment, the pressure plate applies pressure to the stacked filter cloth mud bed, causing the internal sewage to be squeezed out of the filter chamber. As the pressure increases, the first spring deforms, which in turn causes the slide rod to drive the drive ball rod to move. The drive ball rod cooperates with the arc surface of the spiral groove to realize the rotation of the elastic component. As the pitch of the spiral groove decreases upward, the speed gradually increases, causing the pressure plate to directly drive the filter chamber to rotate and throw out the sewage. S2. The rotation of the filter chamber also drives the rotating shaft to rotate. The rotating shaft drives the torsion spring to store elastic potential energy through the connecting frame. When the drive ball rod is located on the top annular surface of the spiral groove, the torsion spring releases elastic potential energy, thereby causing the filter chamber to rotate in the opposite direction to perform dehydration. S3. The outer frame rotates with the filter chamber, and the elasticity of the second spring keeps the traveling wheel in contact with the outer frame, so that the cleaning structure is completely attached to the filter chamber for cleaning.

[0015] Compared with existing technologies, the present invention provides an integrated equipment system and control process for multi-stage continuous sludge reduction, which has the following beneficial effects: 1. This multi-stage continuous sludge reduction integrated equipment system and control process uses a pressing component in conjunction with an elastic component to dewater the multilayer filter cloth sludge bed. The mechanical pressure during the filtration process can be used as the driving force to control the drive column and the spiral groove to rotate the filter frame. The pitch of the spiral groove decreases upwards, and the rotation speed changes in a gradient from slow to fast. Combined with the mechanical pressure, the surface water of the sludge is smoothly squeezed out, avoiding damage and sludge leakage of the filter cake due to instantaneous high-speed rotation, thus ensuring the quality of filter cake formation. In the middle and later stages of filtration, the filter frame rotates faster, and the centrifugal force gradually increases, which can deeply penetrate into the interior of the filter cake and further separate and discharge the residual water in the pores of the filter cake, achieving a gradient operation of stable formation and deep dewatering.

[0016] 2. The multi-stage continuous sludge reduction integrated equipment system and control process, through the rotational movement of the outer frame, allows the four corners of the outer frame to squeeze the traveling wheels. After detaching from the four corners of the outer frame, the second spring drives the traveling wheels to return to their original position, keeping the traveling wheels in contact with the outer frame. Similarly, this ensures that the cleaning structure accurately fits the filter frame, guaranteeing the cleaning operation of the filter frame and improving the dewatering effect. Moreover, through the adjustability of the cleaning components, the stable rotation and dewatering operation of the filter frame is ensured.

[0017] 3. This multi-stage continuous sludge reduction integrated equipment system and control process uses a pressing component linked with an elastic component to dewater the layered filter cloth sludge bed. During the pressing process, the drive ball rod, in conjunction with the spiral groove, enables the filter frame to rotate in a stepwise manner from slow to fast. Simultaneously, the rotary component drives the filter frame to rotate in the opposite direction. The rotation of the filter frame provides a basis for centrifugal force-assisted dewatering and provides power support for surface cleaning, reducing the adhesion of residue or filtrate. Furthermore, the rotation of the filter frame ensures that the outer circumference is thoroughly cleaned by the cleaning component, ensuring stable transmission of pressing pressure and uniform application of centrifugal force to the sludge. This avoids uneven pressure distribution and reduced centrifugal dewatering effect due to filter pore blockage, further enhancing the synergistic reduction effect of the dual pressure. Attached Figure Description

[0018] Figure 1 This is a dewatering process view of the integrated equipment system for multi-stage continuous reduction of sludge proposed in this invention. Figure 2 This is a perspective view of the vertical pressing mechanism and filtration mechanism of the integrated equipment system for multi-stage continuous sludge reduction proposed in this invention. Figure 3 This is a perspective view of the vertical pressing mechanism of the integrated equipment system for multi-stage continuous sludge reduction proposed in this invention. Figure 4 A perspective view of the elastic components of the integrated equipment system for multi-stage continuous sludge reduction proposed in this invention. Figure 5 This is a three-dimensional cross-sectional view of the filtration mechanism of the integrated equipment system for multi-stage continuous sludge reduction proposed in this invention. Figure 6 This is a perspective view of the connection between the filter chamber and the cleaning component of the integrated equipment system for multi-stage continuous sludge reduction proposed in this invention. Figure 7 This is a three-dimensional cross-sectional view of the treatment chamber of the integrated equipment system for multi-stage continuous sludge reduction proposed in this invention. Figure 8 This is a perspective view of the cleaning components of the integrated equipment system for multi-stage continuous sludge reduction proposed in this invention.

[0019] In the diagram: 100, Vertical pressing mechanism; 101, Pressing assembly; 1011, Hydraulic equipment; 1012, Hydraulic base; 102, Elastic component; 1021, Press plate; 1022, Slide rod; 1023, First spring; 1024, Sliding sleeve; 1025, Mounting plate; 103, Fixed shaft; 104, Spiral groove; 105, Drive ball rod; 200, Filtering mechanism; 201, Processing chamber; 202, Filtering assembly; 2021, Filtering chamber; 2022, Mounting component; 2023, Auxiliary... 2024. Auxiliary wheel; 2025. Wheel and rail; 2026. Reinforcing component; 203. Side cavity; 204. Discharge valve; 205. Cleaning assembly; 2051. Adjusting rod; 2052. Traveling wheel; 2053. Second spring; 2054. Adjusting sleeve; 2055. Drive rod; 2056. Guide sleeve; 2057. Cleaning structure; 2058. Guide rod; 206. Rotary assembly; 2061. Outer frame; 2062. Fixing component; 2063. Rotating shaft; 2064. Connecting frame; 2065. Torsion spring. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Example 1: Refer to Figures 1-8 The multi-stage continuous reduction equipment system for sludge includes preliminary dewatering, deep dewatering and thermal drying water intake. The preliminary dewatering process is as follows: the original remaining sludge and PAM agent are added to the sludge thickener and dewatering machine for dewatering treatment, and the filtrate is sent to the sewage pipe network in the filtrate plant for treatment. The deep dewatering process is as follows: a modifier is added to the horizontal modifier tank to further stir and mix the sludge in the initial dewatering. After stirring, a trace amount of polyferric agent is added, and the sludge is then put into a high-efficiency vertical stacked press for dewatering. The filtrate is returned to the sewage pipe network in the filtrate plant. The thermal drying water intake process is as follows: the pressed sludge is conveyed by a conveyor to a low-temperature belt dryer for drying treatment. The condensate produced enters the sewage pipe network of the refrigerant pipe condensate plant, while the thermally dried sludge is transported to a dry granular sludge storage silo and periodically transported off-site for treatment. The deep dewatering process includes a high-efficiency vertical stacked press, which comprises a vertical pressing mechanism 100 and a filtration mechanism 200. The vertical pressing mechanism 100 includes a pressing assembly 101, which includes a hydraulic base 1012. A hydraulic device 1011 is fixedly mounted on the hydraulic base 1012. The hydraulic device 1011 drives an elastic component 102 downwards, enabling the elastic component 102 to perform dewatering operations on the stacked filter cloth sludge bed. The bottom end of the hydraulic device 1011 is fixedly connected to a fixed shaft 103. A fixed shaft 103 is located below the pressing assembly 101, and a spiral groove 104 is formed on the fixed shaft 103. The spiral groove 104 slides with a drive ball rod 105, which is connected to the elastic component 102. The elastic component 102 includes a mounting plate 1025. Multiple sliding sleeves 1024 are fixedly installed on the upper part. Sliding rods 1022 are slidably connected inside the sliding sleeves 1024. One of the sliding rods 1022 is fixedly connected to the drive ball rod 105. The bottom ends of the multiple sliding rods 1022 are fixedly connected to the pressure plate 1021. Multiple first springs 1023 are fixedly connected above the pressure plate 1021. Through the elasticity of the first springs 1023, after the pressing component 101 is subjected to a certain pressure, the first springs 1023 can deform and slide the sliding rods 1022, so that the drive ball rod 105 can smoothly cooperate with the spiral groove 104 to realize the rotation of the elastic component 102, thereby causing the centrifugal motion of the filter frame to assist in the dehydration operation. The first springs 1023 are fixedly connected to the lower part of the sliding sleeves 1024. The pitch of the spiral groove 104 decreases from bottom to top, and the top of the spiral groove 104 is arranged in a ring. The filtration mechanism 200 includes a processing chamber 201, within which a filter assembly 202 is disposed. The filter assembly 202 includes a mounting member 2022, which is rotatably mounted on the processing chamber 201 via bearings. The mounting member 2022 can rotate stably via the bearings, allowing the filter chamber 2021 to maintain stable centrifugal motion. The filter chamber 2021 is mounted on the mounting member 2022. The interior of the filter chamber 2021 is provided with a layered filter cloth sludge bed. A pressure plate 1021 is adapted to the inner cavity of the filter chamber 2021. Through the rectangular structure of the pressure plate 1021, the pressure plate 1021 is precisely aligned with the filter chamber 2021. The inner cavity is adapted so that the rotation of the pressure plate 1021 can smoothly drive the filter chamber 2021 to achieve centrifugal motion. Multiple auxiliary wheels 2023 are fixedly connected to the lower part of the filter chamber 2021. The auxiliary wheels 2023 travel on the wheel rail 2024, supporting the filter chamber 2021 and ensuring smooth rotation of the filter chamber 2021. The wheel rail 2024 is fixedly connected to the processing chamber 201 by reinforcement members 2025. A discharge valve 204 is provided at the lower part of the processing chamber 201, through which excess filtrate can be discharged. Cleaning components 205 are provided on both sides of component 202. The lower parts of the two cleaning components 205 are connected to a rotating component 206. The rotating component 206 includes a rotating shaft 2063, which is fixedly connected to the filter chamber 2021. A connecting frame 2064 is mounted on the rotating shaft 2063 and is fixedly connected to the outer frame 2061. The outer frame 2061 and the outer peripheral surface of the filter chamber 2021 have the same length. The same perimeter of the outer frame 2061 and the outer peripheral surface of the filter chamber 2021 ensures that the rotation angle of the outer frame 2061 and the filter chamber 2021 remains consistent, thereby maintaining the rotation angle of the traveling wheel 2. The contact points of 052 and cleaning structure 2057 are consistent, ensuring that cleaning structure 2057 always contacts filter chamber 2021. A torsion spring 2065 is fixedly connected between connecting frame 2064 and fixing member 2062. The top of spiral groove 104 is annular, allowing torsion spring 2065 to release elastic potential energy smoothly. This allows the filter chamber 2021 to move centrifugally via rotating shaft 2063, which is beneficial for dehydration. Rotating shaft 2063 is rotatably mounted on fixing member 2062 via bearing. Fixing member 2062 is fixedly connected in processing chamber 201. Rotating component 206 is located below filter component 202.

[0023] In this embodiment: the pressing component 101 and the elastic component 102 are used to press and dewater the multilayer filter cloth sludge bed. The mechanical pressure of the pressing process can be used as the driving force to control the drive column and the spiral groove 104 to rotate the filter frame. The pitch of the spiral groove 104 decreases upward and the rotation speed changes in a gradient from slow to fast. The mechanical pressure is used to smoothly squeeze the surface water of the sludge, avoiding damage and sludge leakage of the filter cake due to instantaneous high-speed rotation, thus ensuring the quality of the filter cake. In the middle and later stages of pressing, the filter frame rotates faster and the centrifugal force gradually increases, which can penetrate deeply into the interior of the filter cake and further separate and discharge the residual water in the pores of the filter cake, realizing a gradient operation of stable forming and deep dewatering.

[0024] Example 2: Refer to Figure 8 The integrated equipment system for multi-stage continuous sludge reduction includes a cleaning component 205. The cleaning component 205 includes an adjusting rod 2051, one end of which is equipped with a traveling wheel 2052. The traveling wheel 2052 overlaps with an outer frame 2061, reducing resistance to the outer frame 2061 and ensuring smooth movement of the outer frame 2061. The adjusting rod 2051 is slidably connected in an adjusting sleeve 2054, which is installed on the processing chamber 201. A second spring 2053 is fixedly connected between the adjusting sleeve 2054 and the traveling wheel 2052. The elasticity of the second spring 2053 ensures constant contact between the traveling wheel and the outer frame 2061, and the elastic force of the second spring 2053 is small. The elastic potential energy of the torsion spring 2065 allows the filter frame to rotate smoothly. Side cavities 203 are fixedly connected to both sides of the processing chamber 201. The other end of the adjusting rod 2051 is fixedly connected to the driving rod 2055. The top end of the driving rod 2055 is fixedly connected to the guide rod 2058. The guide rod 2058 is slidably connected in the guide sleeve 2056. The guide sleeve 2056 is installed on the processing chamber 201. One end of the guide rod 2058 is fixedly connected to the cleaning structure 2057. The cleaning structure 2057 overlaps with the filter chamber 2021. The two cleaning structures 2057 are a brush and a scraper, respectively. The brush and scraper can remove residues from the surface of the filter chamber 2021, while the brush can clean the filter holes of the filter chamber 2021, improving the cleaning effect.

[0025] In this embodiment: the rotational movement of the outer frame 2061 allows the four corners of the outer frame 2061 to press against the walking wheel 2052. After disengaging from the four corners of the outer frame 2061, the second spring 2053 drives the walking wheel 2052 to reset, keeping the walking wheel 2052 in contact with the outer frame 2061. Similarly, the cleaning structure 2057 is precisely in contact with the filter frame, ensuring the cleaning operation of the filter frame and improving the dehydration effect. Moreover, the adjustability of the cleaning component 205 ensures the stable rotation and dehydration operation of the filter frame.

[0026] Example 3: Reference Figures 2-5The sludge multi-stage continuous reduction integrated equipment system includes a vertical pressing mechanism 100 and a filtration mechanism 200. The vertical pressing mechanism 100 includes a pressing component 101. A fixed shaft 103 is provided below the pressing component 101. A spiral groove 104 is provided on the fixed shaft 103. The spiral groove 104 is slidably engaged with a drive ball rod 105. The drive ball rod 105 is connected to an elastic component 102. The filtration mechanism 200 includes a processing chamber 201, a filter assembly 202 is provided in the processing chamber 201, and cleaning components 205 are provided on both sides of the filter assembly 202. The lower part of the two cleaning components 205 is connected to a rotating component 206, which is located below the filter assembly 202.

[0027] In this embodiment: the pressing component 101, in conjunction with the elastic component 102, performs pressure filtration and dewatering on the multilayer filter cloth sludge bed. During the pressure filtration process, the drive ball rod 105, in conjunction with the spiral groove 104, enables the filter frame to rotate in a stepwise manner from slow to fast. At the same time, the rotary component 206 drives the filter frame to rotate in the opposite direction. The rotation of the filter frame provides a basis for centrifugal force-assisted dewatering and provides power support for surface cleaning, reducing the adhesion of residue or filtrate. Furthermore, the rotation of the filter frame ensures that the outer circumference is thoroughly cleaned by the cleaning component 205, ensuring stable transmission of pressure and uniform application of centrifugal force to the sludge. This avoids uneven pressure distribution and reduced centrifugal dewatering effect due to filter pore blockage, further enhancing the synergistic reduction effect of the dual pressure.

[0028] The control process for the high-efficiency vertical stacked pressing in the deep dewatering of the sludge multi-stage continuous reduction integrated equipment system includes the following steps: S1. The hydraulic device 1011 presses down the elastic component 102, and the pressure plate 1021 applies pressure to the stacked filter cloth mud bed, so that the internal sewage is forced out from the filter chamber 2021. As the pressure increases, the first spring 1023 deforms, which in turn causes the slide rod 1022 to drive the drive ball rod 105 to move. The drive ball rod 105 cooperates with the arc surface of the spiral groove 104 to realize the rotation of the elastic component 102. As the pitch of the spiral groove 104 decreases upward, the rotation speed gradually increases, so that the pressure plate 1021 directly drives the filter chamber 2021 to rotate and throw out the sewage. S2. The rotation of the filter chamber 2021 also drives the rotating shaft 2063 to rotate. The rotating shaft 2063 drives the torsion spring 2065 to store elastic potential energy through the connecting frame 2064. When the drive ball rod 105 is located on the top annular surface of the spiral groove 104, the torsion spring 2065 releases elastic potential energy, thereby causing the filter chamber 2021 to rotate in the opposite direction to perform dehydration. S3. The outer frame 2061 rotates with the filter chamber 2021, so that the elasticity of the second spring 2053 keeps the walking wheel 2052 in contact with the outer frame 2061, and the cleaning structure 2057 is completely attached to the filter chamber 2021 to carry out cleaning operations.

[0029] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-stage continuous sludge reduction integrated equipment system, comprising preliminary dewatering, deep dewatering, and thermal drying water intake, characterized in that, The deep dewatering process includes high-efficiency vertical stacked pressing; The high-efficiency vertical stacked press includes a vertical pressing mechanism (100) and a filtering mechanism (200). The vertical pressing mechanism (100) includes a pressing assembly (101). A fixed shaft (103) is provided below the pressing assembly (101). A spiral groove (104) is provided on the fixed shaft (103). The spiral groove (104) is slidably engaged with a drive ball rod (105). The drive ball rod (105) is connected to an elastic component (102). The filtration mechanism (200) includes a processing chamber (201), in which a filter assembly (202) is provided. Cleaning components (205) are provided on both sides of the filter assembly (202). The bottom of the two cleaning components (205) is connected to a rotating component (206), which is located below the filter assembly (202).

2. The integrated equipment system for multi-stage continuous sludge reduction according to claim 1, characterized in that, The preliminary dewatering process is as follows: the original remaining sludge and PAM agent are added to the sludge thickening and dewatering machine for dewatering treatment, and the filtrate is sent to the sewage pipe network in the filtrate plant for treatment. The deep dewatering process is as follows: a modifier is added to a horizontal modifier tank to further stir and mix the sludge in the initial dewatering. After stirring, a trace amount of polyferric agent is added, and the sludge is then put into a high-efficiency vertical stacked press for dewatering. The filtrate is returned to the sewage pipe network in the filtrate plant. The thermal drying water intake process is as follows: the pressed sludge is conveyed by a conveyor to a low-temperature belt dryer for drying treatment. The condensate produced enters the sewage pipe network of the refrigerant pipe condensate plant, while the thermally dried sludge is transported to a dry granular sludge storage silo and periodically transported off-site for treatment.

3. The integrated equipment system for multi-stage continuous sludge reduction according to claim 1, characterized in that, The pressing assembly (101) includes a hydraulic base (1012), on which a hydraulic device (1011) is fixedly installed, and the bottom end of the hydraulic device (1011) is fixedly connected to a fixed shaft (103).

4. The integrated equipment system for multi-stage continuous sludge reduction according to claim 3, characterized in that, The elastic component (102) includes a mounting plate (1025), on which a plurality of sliding sleeves (1024) are fixedly mounted. A sliding rod (1022) is slidably connected inside the sliding sleeve (1024). One of the sliding rods (1022) is fixedly connected to a drive ball rod (105). A pressure plate (1021) is fixedly connected to the bottom end of the plurality of sliding rods (1022). A plurality of first springs (1023) are fixedly connected above the pressure plate (1021). The first springs (1023) are fixedly connected below the sliding sleeve (1024).

5. The integrated equipment system for multi-stage continuous sludge reduction according to claim 4, characterized in that, The pitch of the spiral groove (104) decreases from bottom to top, and the top of the spiral groove (104) is arranged in a ring.

6. The integrated equipment system for multi-stage continuous sludge reduction according to claim 5, characterized in that, The filter assembly (202) includes a mounting component (2022), which is rotatably mounted on the processing chamber (201) via a bearing. A filter chamber (2021) is mounted on the mounting component (2022), and the filter chamber (2021) is provided with a layered filter cloth sludge bed inside. The pressure plate (1021) is adapted to the inner cavity of the filter chamber (2021).

7. The integrated equipment system for multi-stage continuous sludge reduction according to claim 6, characterized in that, Multiple auxiliary wheels (2023) are fixedly connected to the lower part of the filter chamber (2021). The auxiliary wheels (2023) travel on the wheel rail (2024). The wheel rail (2024) is fixedly connected to the processing chamber (201) by the reinforcing member (2025). A discharge valve (204) is provided at the lower part of the processing chamber (201).

8. The integrated equipment system for multi-stage continuous sludge reduction according to claim 7, characterized in that, The rotary assembly (206) includes a rotating shaft (2063), which is fixedly connected to the filter chamber (2021). A connecting frame (2064) is mounted on the rotating shaft (2063), which is fixedly connected to the outer frame (2061). The outer frame (2061) has the same length as the outer circumferential surface of the filter chamber (2021). A torsion spring (2065) is fixedly connected between the connecting frame (2064) and the fixing member (2062). The rotating shaft (2063) is rotatably mounted on the fixing member (2062) through a bearing. The fixing member (2062) is fixedly connected to the processing chamber (201).

9. The integrated equipment system for multi-stage continuous sludge reduction according to claim 8, characterized in that, The cleaning assembly (205) includes an adjusting rod (2051), one end of which is provided with a walking wheel (2052). The walking wheel (2052) overlaps with the outer frame (2061). The adjusting rod (2051) is slidably connected in an adjusting sleeve (2054). The adjusting sleeve (2054) is installed on the processing chamber (201). A second spring (2053) is fixedly connected between the adjusting sleeve (2054) and the walking wheel (2052). Side chambers (203) are fixedly connected to both sides of the processing chamber (201). The other end of the adjusting rod (2051) is fixedly connected to a driving rod (2055), and the top end of the driving rod (2055) is fixedly connected to a guide rod (2058). The guide rod (2058) is slidably connected in a guide sleeve (2056), and the guide sleeve (2056) is installed on the processing chamber (201). One end of the guide rod (2058) is fixedly connected to a cleaning structure (2057), and the cleaning structure (2057) overlaps with the filter chamber (2021). The two cleaning structures (2057) are a brush and a scraper, respectively.

10. The control process for the high-efficiency vertical stacked pressing in the deep dewatering of the sludge multi-stage continuous reduction integrated equipment system according to claim 9, is characterized in that, Includes the following steps: S1. The elastic component (102) is pressed down by the hydraulic equipment (1011), and the pressure plate (1021) applies pressure to the stacked filter cloth mud bed, so that the internal sewage is squeezed out from the filter chamber (2021). As the pressure increases, the first spring (1023) deforms, which in turn causes the slide rod (1022) to drive the drive ball rod (105) to move. The drive ball rod (105) cooperates with the arc surface of the spiral groove (104) to realize the rotation of the elastic component (102). As the pitch of the spiral groove (104) decreases upward, the rotation speed gradually increases, so that the pressure plate (1021) directly drives the filter chamber (2021) to rotate and throw out sewage. S2. The rotation of the filter chamber (2021) also drives the rotating shaft (2063) to rotate. The rotating shaft (2063) drives the torsion spring (2065) to store elastic potential energy through the connecting frame (2064). When the driving ball rod (105) is located on the top annular surface of the spiral groove (104), the torsion spring (2065) releases elastic potential energy, thereby causing the filter chamber (2021) to rotate in the opposite direction to perform dehydration. S3. The outer frame (2061) rotates with the filter chamber (2021), and the elasticity of the second spring (2053) keeps the walking wheel (2052) in contact with the outer frame (2061), so that the cleaning structure (2057) is completely attached to the filter chamber (2021) for cleaning.

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