A high-efficiency multi-phase sludge mixing homogenization dewatering device and a method of using the same

By using a high-efficiency multiphase sludge mixing and homogenization device, which utilizes dual extrusion of the main and auxiliary rollers, viscosity and colloid detection, additive injection, and diversion design, the problems of poor sludge homogenization and clogging are solved, and efficient dewatering is achieved.

CN120328814BActive Publication Date: 2026-01-13ZIBO ZHONGSHAN SIWORUI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202510533794.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-04-27
Publication Date
2026-01-13
Estimated Expiration
2045-04-27

AI Technical Summary

Technical Problem

In existing sludge treatment technologies, the varying content and internal conditions of sludge result in poor homogenization. High internal colloid concentrations make it difficult to remove water, and high viscosity easily clogs dewatering devices.

Method used

The device employs a high-efficiency multiphase sludge mixing and homogenization unit, including a filter press and a homogenization pretreatment mechanism. It utilizes a dual extrusion process with a main extrusion roller and a secondary extrusion roller, combined with a viscosity and colloid detection module, additive injection, and a threaded long column and diverter plate design to achieve sludge homogenization and gas escape.

Benefits of technology

It improves sludge dewatering efficiency, prevents colloids from absorbing water and clogging, adapts to different sludge conditions, and ensures smooth dewatering process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a high-efficiency multi-phase sludge mixing homogenization dewatering device and a use method thereof, and relates to the field of sludge treatment. The device comprises a filter press, a homogenization pretreatment mechanism is arranged at the front end of the filter press, the homogenization pretreatment mechanism comprises a feeding part, a homogenization assembly and a discharging part, a stirring part is arranged in the feeding part, the stirring part is rotationally connected in the feeding part, the homogenization assembly is fixedly connected at the bottom of the feeding part, the homogenization assembly comprises a main extrusion roller and an auxiliary extrusion roller, the main extrusion roller is fixedly connected at the bottom of the stirring part, the auxiliary extrusion roller is slidingly connected at the bottom of the main extrusion roller, the discharging part is fixedly connected at the bottom of the homogenization assembly, and a threaded long column is rotationally connected in the discharging part. The device not only homogenizes the sludge, but also cuts the internal colloid; the shearing effect of the homogenization can be adjusted; and the sludge is extruded by the extrusion pipe section to prevent a large number of bubbles in the sludge from affecting the dewatering effect.
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Description

Technical Field

[0001] This invention relates to the field of sludge treatment technology, specifically to a high-efficiency multiphase sludge mixing, homogenization, and dewatering device and its usage method. Background Technology

[0002] Sludge dewatering is a crucial step in wastewater treatment, aiming to reduce the moisture content of sludge for easier transportation, disposal, and resource utilization. Traditional dewatering methods such as centrifugation and belt filter presses suffer from low efficiency, high energy consumption, and clogging issues. The core of multiphase sludge mixing and homogenization technology lies in achieving thorough mixing and optimized properties of dry and wet sludge through mechanical, chemical, and dynamic adjustment methods. This homogenization pretreatment before dewatering makes dewatering more efficient.

[0003] Existing homogenization methods typically involve mixing and adding chemical additives to homogenize sludge. However, due to variations in sludge content and internal conditions, homogenization is often ineffective. High concentrations of internal colloids can trap moisture even after homogenization, leading to poor dewatering and potential clogging of dewatering equipment. Furthermore, the high viscosity of the sludge can still clog some types of dewatering devices. To address these issues, this invention provides a highly efficient multiphase sludge mixing, homogenization, and dewatering device and its usage method. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a highly efficient multiphase sludge mixing, homogenization, and dewatering device and its usage method. It solves the problems of poor homogenization due to variations in sludge content and internal conditions, high concentrations of internal colloids causing some water to remain trapped even after homogenization, resulting in poor dewatering performance and easy clogging of the dewatering device. Furthermore, the high viscosity of the sludge can still clog some types of dewatering devices during dewatering.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency multiphase sludge mixing, homogenization, and dewatering device and its usage method, comprising a filter press, wherein a homogenization pretreatment mechanism is provided at the front end of the filter press, the homogenization pretreatment mechanism includes a feeding component, a homogenization component, and a discharging component, the feeding component being used to load sludge, and a stirring component being provided inside the feeding component, the stirring component being rotatably connected inside the feeding component for pre-stirring the sludge, the homogenization component being fixedly connected to the bottom of the feeding component, the homogenization component including a main extrusion roller and a secondary extrusion roller, the main extrusion roller being fixedly connected to the bottom of the stirring component, the secondary extrusion roller being slidably connected to the bottom of the main extrusion roller, the main extrusion roller being used for preliminary homogenization extrusion of the sludge, the secondary extrusion roller being used for secondary homogenization extrusion, the discharging component being fixedly connected to the bottom of the homogenization component, and a threaded long column being rotatably connected inside the discharging component, the threaded long column being used to input sludge into the filter press.

[0006] Preferably, the feeding component includes a feeding shell, a first servo motor, and a viscosity detection module. The top of the feeding shell has a feeding slot for feeding material. A fixed bottom shell is fixedly connected to the bottom of the feeding shell. The stirring component is rotatably connected inside the feeding shell. The first servo motor is fixedly connected to the top of the feeding shell. The viscosity detection module is fixedly connected inside the feeding slot and is used to measure the viscosity of the sludge.

[0007] Preferably, the feeding component further includes a rotating shaft, a scraper plate, and a discharge arc. The rotating shaft is fixedly connected to the power output end of the first servo motor. The stirring component is installed on the rotating shaft. A connecting plate is fixedly connected to the bottom end of the rotating shaft. The scraper plate is fixedly connected to the bottom of the rotating shaft. The discharge arc is opened on the fixed bottom shell. The scraper plate is used to push the sludge into the discharge arc.

[0008] Preferably, the homogenization component includes a roller press housing, a colloid detection module, and a connecting base column. The roller press housing is thicker in the middle and narrower at both ends. An upper connecting flange is fixedly connected to the top of the roller press housing and is fixedly connected to the bottom of the feed housing. A lower connecting flange is fixedly connected to the bottom of the roller press housing. A crushing protrusion is fixedly connected to the inner wall of the bottom of the roller press housing. The colloid detection module is installed on the roller press housing and is used to detect the colloid content of the sludge. The connecting base column is fixedly connected to the top of the main extrusion roller and to the bottom of the rotating shaft. The connecting base column is used to drive the main extrusion roller and the auxiliary extrusion roller to rotate.

[0009] Preferably, the homogenization component further includes an additive, which includes a liquid injection ring block, a water addition pipe, a colloidal flocculant addition pipe, and a nozzle. The liquid injection ring block is installed on the upper end of the roller press housing, and two sets of liquid injection ring blocks are provided. The water addition pipe is installed on one set of liquid injection ring blocks for injecting water, and the colloidal flocculant addition pipe is installed on the other set of liquid injection ring blocks for injecting colloidal flocculant. The nozzle is installed on the side wall of the roller press housing for injecting water and flocculant into the roller press housing, respectively.

[0010] Preferably, the main extrusion roller is provided with a scraper arc plate, a first chamber, a second chamber, and a sliding limiting groove. The scraper arc plate is fixedly connected to both ends of the main extrusion roller for conveying sludge downwards. The first chamber is located at the bottom end of the scraper arc plate. The auxiliary extrusion roller is slidably connected to the first chamber. The second chamber is located on the inner wall of the first chamber. The sliding limiting groove is located on the side wall of the first chamber. There are four sets of sliding limiting grooves, which are arrayed on the first chamber. The auxiliary extrusion roller is generally wider at the top and narrower at the bottom. Shearing protrusions are fixedly connected to the side wall of the auxiliary extrusion roller. The shearing protrusions generate shearing force by rotating and breaking the protrusions. A cylinder is fixedly connected to the top of the auxiliary extrusion roller. The cylinder is installed in the second chamber and is used to drive the auxiliary extrusion roller to move downwards, so that the gap between the auxiliary extrusion roller and the roller housing can be adjusted. A limiting slider is also fixedly connected to the outer end of the auxiliary extrusion roller. The limiting slider is slidably connected in the sliding limiting groove.

[0011] Preferably, a support frame is provided at the bottom of the discharge component to support the homogenization pretreatment mechanism. The discharge component includes a discharge shell, a discharge tube, a second servo motor, and a diverter plate. The discharge shell is fixedly connected to the bottom of the lower connecting flange. The threaded column is rotatably connected inside the discharge shell. The discharge tube is fixedly connected to one end of the discharge shell. The threaded column is also rotatably connected inside the discharge tube. The second servo motor is fixedly connected to the side end of the discharge shell. The threaded column is fixedly connected to the power output end of the second servo motor. The second servo motor is used to drive the threaded column to rotate. The diverter plate is installed inside the discharge shell and is placed at an angle. The diverter plate is used to divert the homogenized sludge.

[0012] Preferably, a connecting ring block is provided at the top of the discharge housing, the lower connecting flange is connected to the flange of the connecting ring block, a movable plate is installed on the side of the discharge housing, the movable plate is used to remove the diverter plate for cleaning, the discharge pipe includes a compression pipe section and a discharge pipe section, the compression pipe section is wider at the bottom and narrower at the top, and is used to further compress the sludge with the threaded long column, and a discharge port is provided at the bottom of the discharge pipe section, the discharge port is used to output sludge into the filter press.

[0013] Preferably, the method of use includes the following steps:

[0014] Step 1, Sludge Input and Initial Mixing: The sludge is input from the feed trough and mixed by the agitator to initially break it up. Then it is conveyed downwards and scraped into the discharge arc by the scraper plate.

[0015] Step 2, Homogenization of sludge: Sludge enters the roller press housing through the feeding arc, first falls onto the main extrusion roller for the first roller press, and is then conveyed downward to the auxiliary extrusion roller under the push of the scraper arc plate. The sludge is then sheared by the shearing and crushing protrusions on the auxiliary extrusion roller, achieving the second roller press and homogenization treatment, and breaking down the colloids in the sludge.

[0016] Step 3: Sludge feeding and dewatering: After roller pressing and homogenization, the sludge falls onto the diversion plate, which blocks some long fibers in the sludge. It then falls onto the threaded column and is conveyed to the discharge pipe at an angle upward as the threaded column rotates. When passing through the extrusion section, the reduced space causes some air bubbles in the sludge to burst, and gas escapes from the sludge. The sludge is then conveyed from the discharge port into the filter press for formal dewatering.

[0017] This invention discloses a high-efficiency multiphase sludge mixing, homogenization, and dewatering device and its usage method, which has the following beneficial effects:

[0018] 1. This high-efficiency multiphase sludge mixing, homogenization, and dewatering device and its usage method, by setting up a main extrusion roller and an auxiliary extrusion roller, allows the sludge to be crushed and sheared twice during the homogenization process. This not only homogenizes the sludge but also breaks down the internal colloids, preventing the colloids from absorbing water or clogging the dewatering device during dewatering.

[0019] 2. This high-efficiency multiphase sludge mixing, homogenization, and dewatering device and its usage method, by setting two detection modules, allows for targeted injection of additives to better homogenize sludge under different conditions. In addition, the adjustable extrusion rollers allow for adjustment of the homogenization shear strength.

[0020] 3. This high-efficiency multiphase sludge mixing, homogenization and dewatering device and its usage method, through the cooperation of the threaded long column and the discharge long pipe, enables the sludge to be squeezed out of gas through the extrusion pipe section during discharge, preventing a large number of air bubbles in the sludge from affecting the dewatering effect. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall structure of the homogenization pretreatment mechanism of the present invention;

[0024] Figure 3 This is a schematic diagram of the exploded structure of the homogenization pretreatment mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the feed component of the present invention;

[0026] Figure 5 This is a schematic diagram of the overall structure of the homogenization component of the present invention;

[0027] Figure 6 This is a schematic cross-sectional view of the homogenization component of the present invention;

[0028] Figure 7 This is a schematic diagram showing a partial structural detail of the present invention;

[0029] Figure 8 This is a schematic diagram showing the detailed structure of the main extrusion roller and the auxiliary extrusion roller of the present invention;

[0030] Figure 9 This is a schematic diagram of the cross-sectional structure of the discharge part of the present invention;

[0031] Figure 10 This is a schematic diagram of the process of the present invention;

[0032] Figure 11 This is a schematic diagram of the logic of the present invention.

[0033] In the diagram: 1. Homogenization pretreatment mechanism; 11. Feeding component; 111. Feeding shell; 1111. Feeding trough; 1112. Fixed bottom shell; 112. First servo motor; 113. Viscosity detection module; 114. Rotating shaft; 1141. Connecting upper plate; 115. Stirring component; 116. Scraper and discharge plate; 117. Discharge arc; 12. Homogenization component; 121. Roller shell; 1211. Upper connecting flange; 1212. Lower connecting flange; 1213. Crushing protrusion; 122. Additive; 1221. Liquid injection ring block; 1222. Clean water addition pipe; 1223. Colloidal flocculant addition pipe; 1224. Nozzle; 23. Colloid detection module; 124. Connecting bottom column; 125. Extrusion main roller; 1251. Scraper arc plate; 1252. First chamber; 1253. Second chamber; 1254. Sliding limit groove; 126. Extrusion auxiliary roller; 1261. Shearing protrusion; 1262. Cylinder; 1263. Limiting slider; 13. Discharge component; 131. Discharge housing; 1311. Connecting ring block; 1312. Movable plate; 132. Discharge long pipe; 1321. Extrusion pipe section; 1322. Discharge pipe section; 1323. Discharge port; 133. Second servo motor; 134. Diverter plate; 135. Threaded long column; 14. Support frame; 2. Filter press. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are described clearly and completely. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] This application provides an efficient multiphase sludge mixing, homogenization, and dewatering device and its usage method. It solves the problems of poor homogenization due to the varying content and internal conditions of sludge, high concentration of internal colloids causing some water to remain trapped inside even after homogenization, resulting in poor dewatering effect and easy clogging of the dewatering device. In addition, the high viscosity of sludge can still clog some types of dewatering devices during dewatering.

[0036] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0037] This invention discloses a high-efficiency multiphase sludge mixing, homogenization, and dewatering device and its usage method.

[0038] Example 1

[0039] According to the appendix Figure 1-11 As shown, the filter press includes a filter press 2. A homogenization pretreatment mechanism 1 is provided at the front end of the filter press 2. The homogenization pretreatment mechanism 1 includes a feed component 11, a homogenization component 12, and a discharge component 13. The feed component 11 is used to load sludge. A stirring component 115 is provided inside the feed component 11. The stirring component 115 is rotatably connected inside the feed component 11 and is used to pre-stir the sludge. The homogenization component 12 is fixedly connected to the bottom of the feed component 11. The homogenization component 12 includes a main extrusion roller 125 and a secondary extrusion roller 126. The main extrusion roller 125 is fixedly connected to the bottom of the stirring component 115, and the secondary extrusion roller 126 is slidably connected to the bottom of the main extrusion roller 125. The main extrusion roller 125 is used to perform preliminary homogenization extrusion on the sludge, and the secondary extrusion roller 126 is used for secondary homogenization extrusion. The discharge component 13 is fixedly connected to the bottom of the homogenization component 12. A threaded long column 135 is rotatably connected inside the discharge component 13. The threaded long column 135 is used to input the sludge into the filter press 2.

[0040] The feeding component 11 includes a feeding housing 111, a first servo motor 112, and a viscosity detection module 113. The feeding housing 111 has a feeding slot 1111 at its top for feeding material. A fixed bottom shell 1112 is fixedly connected to the bottom of the feeding housing 111. A stirring component 115 is rotatably connected inside the feeding housing 111. The first servo motor 112 is fixedly connected to the top of the feeding housing 111. The viscosity detection module 113 is fixedly connected inside the feeding slot 1111 and is used for measuring viscosity. The sludge viscosity is determined by the feed component 11, which also includes a rotating shaft 114, a scraper plate 116, and a discharge arc 117. The rotating shaft 114 is fixedly connected to the power output end of the first servo motor 112. The agitator 115 is installed on the rotating shaft 114. A connecting plate 1141 is fixedly connected to the bottom end of the rotating shaft 114. The scraper plate 116 is fixedly connected to the bottom of the rotating shaft 114. The discharge arc 117 is opened on the fixed bottom shell 1112. The scraper plate 116 is used to push the sludge into the discharge arc 117.

[0041] The scraper plate 116 scrapes the stirred sludge to prevent it from adhering to the feed housing 111 and to push it into the discharge arc 117. The viscosity detection module 113 is used to detect the viscosity coefficient of the sludge. The viscosity detection module 113 is generally a rotor-spring torque meter. The device consists of a rotating rotor, a torsion spring, and a pointer scale. The rotating rotor is driven by the flow of sludge in the pipe. The higher the viscosity, the greater the rotor resistance and the more obvious the pointer deflection.

[0042] Example 2

[0043] Based on Example 1, according to Appendix Figure 1-11As shown, the homogenization component 12 includes a roller press housing 121, a colloid detection module 123, and a connecting base post 124. The roller press housing 121 is thicker in the middle and narrower at both ends. An upper connecting flange 1211 is fixedly connected to the top of the roller press housing 121, and the upper connecting flange 1211 is fixedly connected to the bottom of the feed housing 111. A lower connecting flange 1212 is fixedly connected to the bottom of the roller press housing 121. A crushing protrusion 1213 is fixedly connected to the inner wall of the bottom of the roller press housing 121. The colloid detection module 123 is mounted on the roller press housing 121. On the pressure housing 121, a connecting bottom column 124 is fixedly connected to the top of the main extrusion roller 125 and the bottom of the rotating shaft 114 for detecting the colloidal content of sludge. The connecting bottom column 124 is used to drive the main extrusion roller 125 and the auxiliary extrusion roller 126 to rotate. The colloidal detection module 123 generally adopts a dynamic filter cake specific resistance detection module. The equipment is composed of a miniature vacuum filtration unit and a lever-type weighing mechanism. The filter cloth area is fixed and connected to a mechanical pressure gauge. The weight of the filtrate triggers the pointer of the dial.

[0044] The homogenization component 12 also includes an additive 122, which includes a liquid injection ring block 1221, a clean water addition pipe 1222, a colloidal flocculant addition pipe 1223, and a nozzle 1224. The liquid injection ring block 1221 is installed on the upper end of the roller housing 121, and two sets of liquid injection ring blocks 1221 are provided. The clean water addition pipe 1222 is installed on one set of liquid injection ring blocks 1221 for injecting clean water, and the colloidal flocculant addition pipe 1223 is installed on the other set of liquid injection ring blocks 1221 for injecting clean water. Colloidal flocculant, nozzle 1224 is installed on the side wall of roller press housing 121, used to inject water and flocculant into roller press housing 121 respectively. When the viscosity coefficient of the input sludge is high, the water addition pipe 1222 increases the water content and opens nozzle 1224 to inject into roller press housing 121. When the colloidal content of the input sludge is high, the colloidal flocculant addition pipe 1223 increases the colloidal flocculant content and opens nozzle 1224 to inject into roller press housing 121, so that targeted addition can be made for sludge under different conditions.

[0045] The main extrusion roller 125 is equipped with a scraper arc plate 1251, a first chamber 1252, a second chamber 1253, and a sliding limiting groove 1254. The scraper arc plate 1251 is fixedly connected to both ends of the main extrusion roller 125 and is used to convey sludge downwards. The first chamber 1252 is located at the bottom end of the scraper arc plate 1251. The auxiliary extrusion roller 126 is slidably connected to the first chamber 1252. The second chamber 1253 is located on the inner wall of the first chamber 1252. The sliding limiting groove 1254 is located on the side wall of the first chamber 1252. There are four sets of sliding limiting grooves 1254, which are arrayed on the first chamber 1252. The auxiliary extrusion roller 126 is generally wider at the top and narrower at the bottom. A shearing protrusion is fixedly connected to the side wall of the auxiliary extrusion roller 126. Block 1261, shearing protrusion 1261 generates shearing force by rotating and crushing protrusion 1213. Cylinder 1262 is fixedly connected to the top of the extrusion auxiliary roller 126. Cylinder 1262 is installed in the second chamber 1253. Cylinder 1262 is used to drive the extrusion auxiliary roller 126 to move downward, so that the gap between the extrusion auxiliary roller 126 and the roller press housing 121 can be adjusted. Limiting slider 1263 is also fixedly connected to the outer end of the extrusion auxiliary roller 126. Limiting slider 1263 is slidably connected in the sliding limiting groove 1254. When the input sludge colloid content is high, cylinder 1262 drives the extrusion auxiliary roller 126 to adjust downward, so that the gap between the extrusion auxiliary roller 126 and the roller press housing 121 is reduced, and the sludge is subjected to stronger shearing force so that the colloid can be crushed.

[0046] Example 3

[0047] Based on Examples 1 and 2, and according to Appendix Figure 1-11 As shown, a support frame 14 is provided at the bottom of the discharge component 13. The support frame 14 is used to support the homogenization pretreatment mechanism 1. The discharge component 13 includes a discharge housing 131, a discharge tube 132, a second servo motor 133, and a diverter plate 134. The discharge housing 131 is fixedly connected to the bottom of the lower connecting flange 1212. A threaded long column 135 is rotatably connected inside the discharge housing 131. The discharge tube 132 is fixedly connected to one end of the discharge housing 131. The threaded long column 135 is also rotatably connected inside the discharge tube 132. The second servo motor 133 is fixedly connected to the discharge housing 131. At the side end, the threaded long column 135 is fixedly connected to the power output end of the second servo motor 133. The second servo motor 133 is used to drive the threaded long column 135 to rotate. The diverter plate 134 is installed inside the discharge housing 131. The diverter plate 134 is placed at an angle. The diverter plate 134 is used to divert the homogenized sludge. Since some input sludge contains a large number of long fibers such as hair or thin ropes, it will cause some blockage when input into the dewatering device. Therefore, the diverter plate 134 can divert the sludge evenly to prevent sludge from blocking in one area, and it will also cut off long fibers.

[0048] The top of the discharge housing 131 is provided with a connecting ring block 1311, and the lower connecting flange 1212 is connected to the flange of the connecting ring block 1311. A movable plate 1312 is installed on the side of the discharge housing 131. The movable plate 1312 is used to remove the diverter plate 134 for cleaning. The discharge pipe 132 includes a compression pipe section 1321 and a discharge pipe section 1322. The compression pipe section 1321 is wider at the bottom and narrower at the top. It is used to further compress the sludge with the threaded long column 135. The bottom of the discharge pipe section 1322 is provided with a discharge port 1323. The discharge port 1323 is used to output the sludge into the filter press 2.

[0049] Example 4

[0050] Based on Examples 1, 2, and 3, and according to Appendix Figure 1-11 As shown, the usage method includes the following steps:

[0051] Step 1, Sludge Input and Initial Mixing: The sludge is input from the feed trough 1111 and mixed by the agitator 115 to initially break it up. Then it is conveyed downwards and scraped into the discharge arc 117 by the scraper plate 116.

[0052] Meanwhile, in step one, sludge viscosity is detected, and nozzle 1224 is opened to spray clean water, which reduces the sludge viscosity coefficient and prevents it from clogging in the homogenization pretreatment unit 1 and filter press 2.

[0053] Step 2, Homogenization of sludge: Sludge enters the roller press housing 121 through the feeding arc 117, first falls onto the main extrusion roller 125 for the first roller press, and is then conveyed downward to the secondary extrusion roller 126 under the push of the scraper arc plate 1251. The sludge is then sheared by the shearing protrusion 1261 and the crushing protrusion 1213 on the secondary extrusion roller 126, realizing the second roller press and homogenization treatment, and breaking down the colloids in the sludge.

[0054] Meanwhile, in step two, the sludge colloidal content will be detected, and the nozzle 1224 will be opened to spray colloidal flocculant, thereby reducing the colloidal content in the sludge and preventing the colloids that cannot be dewatered from absorbing a large amount of free water, resulting in poor dewatering effect and easy clogging of filter press 2.

[0055] Step 3: Sludge feeding and dewatering: After roller pressing and homogenization, the sludge falls onto the diversion plate 134. The diversion plate 134 blocks some long fibers in the sludge, which then falls onto the threaded column 135. As the threaded column 135 rotates, it is conveyed to the discharge pipe 132 at an angle upward. When passing through the extrusion pipe section 1321, the reduced space causes some air bubbles in the sludge to burst, and gas escapes from the sludge. The sludge is then conveyed from the discharge port 1323 into the filter press 2 for formal dewatering treatment.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A high efficiency multi-phase sludge mixing homogenization dewatering device comprising a filter press (2), characterized in that, The filter press (2) is provided with a homogenization pretreatment mechanism (1) at the front end, and the homogenization pretreatment mechanism (1) comprises: The feeding part (11) is used for loading sludge, and the stirring part (115) is arranged in the feeding part (11) and rotationally connected in the feeding part (11) to pre-stir the sludge; The homogenization assembly (12) is fixedly connected to the bottom of the feeding part (11), and comprises an extrusion main roller (125) and an extrusion auxiliary roller (126), wherein the extrusion main roller (125) is fixedly connected to the bottom of the stirring part (115), the extrusion auxiliary roller (126) is slidingly connected to the bottom of the extrusion main roller (125), the extrusion main roller (125) is used for primary homogenization extrusion of the sludge, and the extrusion auxiliary roller (126) is used for secondary homogenization extrusion. The roller pressing shell (121) is wide in the middle section and narrow in two sections, the upper connecting flange (1211) is fixedly connected to the top end of the roller pressing shell (121), the upper connecting flange (1211) is fixedly connected to the bottom end of the feeding shell (111), the lower connecting flange (1212) is fixedly connected to the bottom end of the roller pressing shell (121), and the crushing protrusions (1213) are fixedly connected to the inner wall of the bottom end of the roller pressing shell (121). The colloidal detection module (123) is installed on the roller pressing shell (121) and is used for detecting the colloidal content of the sludge. The connecting bottom column (124) is fixedly connected to the top end of the extrusion main roller (125) and the bottom end of the rotating shaft (114), and is used for driving the extrusion main roller (125) and the extrusion auxiliary roller (126) to rotate. The extrusion main roller (125) is provided with: The scraping arc plate (1251) is fixedly connected to both ends of the extrusion main roller (125) and is used for downward conveying of the sludge. The first cavity (1252) is formed in the bottom end of the scraping arc plate (1251), and the extrusion auxiliary roller (126) is slidingly connected in the first cavity (1252). The second cavity (1253) is formed in the inner wall of the first cavity (1252). The sliding limiting groove (1254) is formed in the side wall of the first cavity (1252), and four groups of the sliding limiting groove (1254) are arrayed on the first cavity (1252). The extrusion vice roller (126) is wide at the top and narrow at the bottom as a whole, a shearing protrusion (1261) is fixedly connected to the side wall of the extrusion vice roller (126), the shearing protrusion (1261) forms shearing force by rotating and breaking the protrusion (1213), a gas cylinder (1262) is fixedly connected to the top end of the extrusion vice roller (126), the gas cylinder (1262) is installed in the second cavity (1253), and the gas cylinder (1262) is used to drive the extrusion vice roller (126) to move downwards, so that the gap between the extrusion vice roller (126) and the roller pressing shell (121) can be adjusted; the outer end of the extrusion vice roller (126) is also fixedly connected with a limiting sliding block (1263), and the limiting sliding block (1263) is slidingly connected in the sliding limiting groove (1254); The discharging part (13) is fixedly connected to the bottom of the homogenizing assembly (12), a threaded long column (135) is rotatably connected in the discharging part (13), and the threaded long column (135) is used to input sludge into the filter press (2).

2. A high efficiency multi-phase sludge mixing homogenization dewatering device as claimed in claim 1, wherein: The feeding part (11) comprises: The feeding shell (111) is provided with a feeding slot (1111) at the top end, the feeding slot (1111) is used for feeding, and the feeding shell (111) is fixedly connected with a fixed bottom shell (1112); the stirring part (115) is rotatably connected in the feeding shell (111); The first servo motor (112) is fixedly connected to the top end of the feeding shell (111); The viscosity detection module (113) is fixedly connected in the feeding slot (1111), and the viscosity detection module (113) is used to measure the viscosity of the sludge.

3. A high efficiency multi-phase sludge mixing homogenization dewatering device as claimed in claim 2, wherein: The feeding part (11) further comprises: The rotating shaft (114) is fixedly connected to the power output end of the first servo motor (112), the stirring part (115) is installed on the rotating shaft (114), and the rotating shaft (114) is fixedly connected with a connecting upper disc (1141) at the bottom end; The scraping and discharging plate (116) is fixedly connected to the bottom of the rotating shaft (114); The discharging arc opening (117) is arranged on the fixed bottom shell (1112), and the scraping and discharging plate (116) is used to push the sludge into the discharging arc opening (117).

4. A high efficiency multi-phase sludge mixing homogenization dewatering device as claimed in claim 3, wherein: The homogenizing assembly (12) further comprises an adding part (122), and the adding part (122) comprises: The liquid injection ring block (1221) is installed on the upper end of the roller pressing shell (121), and two groups of the liquid injection ring block (1221) are arranged; The clean water adding pipe (1222) is installed on one group of the liquid injection ring block (1221) and is used for injecting clean water; The colloidal flocculant adding pipe (1223) is installed on the other group of the liquid injection ring block (1221) and is used for injecting colloidal flocculant; A spray head (1224) is installed on the side wall of the roller pressing shell (121) for injecting clean water and flocculating agent into the roller pressing shell (121) respectively.

5. A high efficiency multi-phase sludge mixing homogenization dewatering device as claimed in claim 4, wherein: The bottom of the discharging part (13) is provided with a supporting frame (14) for supporting the homogenizing pretreatment mechanism (1), and the discharging part (13) comprises: A discharging shell (131) is fixedly connected at the bottom of the lower connecting flange (1212), and the threaded long column (135) is rotatably connected in the discharging shell (131); A discharging long tube (132) is fixedly connected at one end of the discharging shell (131), and the threaded long column (135) is also rotatably connected in the discharging long tube (132); A second servo motor (133) is fixedly connected at the side end of the discharging shell (131), and the threaded long column (135) is fixedly connected on the power output end of the second servo motor (133), so that the second servo motor (133) is used for driving the threaded long column (135) to rotate; A flow dividing plate (134) is installed in the discharging shell (131), and the flow dividing plate (134) is placed obliquely, and the flow dividing plate (134) is used for dividing the homogenized sludge.

6. A high efficiency multi-phase sludge mixing homogenization dewatering device as claimed in claim 5, wherein: A connecting ring block (1311) is formed at the top end of the discharging shell (131), the lower connecting flange (1212) is flange-connected with the connecting ring block (1311), and a movable plate (1312) is installed at the side end of the discharging shell (131), and the movable plate (1312) is used for taking out the flow dividing plate (134) for cleaning; The discharging long tube (132) comprises an extrusion tube section (1321) and a discharging tube section (1322), the extrusion tube section (1321) is in a shape of being thick at the bottom and narrow at the top, and is used for further compressing the sludge with the threaded long column (135), and the discharging tube section (1322) is provided with a discharging port (1323) at the bottom, and the discharging port (1323) is used for outputting the sludge into the filter press (2).

7. A method of using a high efficiency multi-phase sludge mixing homogenization dewatering device according to any one of claims 1-6, characterized in that, The use method comprises the following steps, Step one, sludge input and initial stirring: the sludge is input from the inlet slot (1111) and stirred by the stirring part (115) to preliminarily fragmentize the sludge, and then the sludge is downwardly conveyed and scraped into the discharging arc slot (117) by the scraping and discharging plate (116); Step two, sludge homogenization: the sludge enters the roller pressing shell (121) through the discharging arc slot (117), firstly falls onto the extrusion main roller (125) to be rolled for the first time, and is downwardly conveyed to the extrusion auxiliary roller (126) under the pushing of the scraping arc plate (1251), and is sheared by the shearing protrusions (1261) and the crushing protrusions (1213) on the extrusion auxiliary roller (126) to be rolled for the second time and homogenized, so that the colloid in the sludge is crushed; Step three, sludge feeding and dewatering: after the completion of rolling and homogenization, the sludge falls onto the distribution plate (134), the distribution plate (134) blocks some long fibers in the sludge, then falls into the threaded long column (135), and is transported to the obliquely upward discharge long tube (132) along with the rotation of the threaded long column (135). When passing through the extrusion tube section (1321), a part of the bubbles in the sludge break due to the reduction of space, and the gas escapes from the sludge. Then the sludge is transported into the filter press (2) from the discharge port (1323) for formal dewatering treatment.

Citation Information

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