Sludge concentration and dehydration integrated treatment equipment and method

Abstract

The invention belongs to the technical field of sludge dewatering equipment, and particularly relates to sludge concentration and dewatering integrated treatment equipment and method.The sludge concentration and dewatering integrated treatment equipment comprises a bottom frame, a conditioning box installed at one end of the bottom frame, a treatment box installed at the other end of the bottom frame, a stacked spiral body fixedly installed in the treatment box and a spiral shaft penetrating through the stacked spiral body; the stacked spiral body is divided into a concentration section and a dehydration section; wherein the concentration section is formed by alternately stacking first static rings and first moving rings, embedded blocks are integrally formed on outer rings of the two side faces of each first static ring in a staggered mode, the embedded blocks are in butt joint in a staggered mode when the first static rings are stacked to form an annular encirclement ring, the first moving rings are embedded into the encirclement ring, and the outer diameter of each first moving ring is smaller than the inner diameter of the encirclement ring. According to the invention, sewage can be primarily filtered, the degree of freedom of the movable ring of the concentration section is improved, the movable ring can simultaneously move in the circumferential direction and the radial direction, the probability that a shaft is blocked by sludge is reduced, and after blockage, part of the movable ring and the static ring can be detached to facilitate cleaning.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge dewatering equipment, and in particular relates to a sludge concentration and dewatering integrated processing equipment and method. Background Art

[0002] With the development of technology, at present, there are many kinds of integrated sludge thickening and dehydration processing equipment, among which the most widely used is the screw stacking machine, which has the advantages of small footprint, high efficiency and energy saving, and high degree of automation.

[0003] The working principle of the spiral stacking machine is mainly based on the principle of spiral extrusion and filtration, and is mainly divided into two parts: the concentration section and the dehydration section. It uses the method of alternating the static ring and the dynamic ring to form a spiral stack on the periphery of the spiral shaft. When the spiral driving shaft rotates, the multiple dynamic rings arranged on the periphery of the driving shaft move relatively. Under the action of gravity, water is filtered out from the gap between the relatively moving stacked sheets to achieve rapid concentration of sludge; at the same time, the gap between the static ring and the dynamic ring in the dehydration section gradually decreases, and the wheelbase of the spiral shaft is also continuously reduced, so that the internal pressure is used to complete the dehydration of the sludge.

[0004] However, in actual use, due to improper operation or diverse sludge characteristics, large particles such as stones that have not been thoroughly cleaned may be mixed inside the above equipment, resulting in sludge blocking the screw shaft in the dewatering section of the spiral stack, that is, the sludge is adsorbed on the spiral shaft and rotates with the spiral shaft. Since the capacity of the spiral stack is limited, the more mud there is, the greater the internal pressure is, and the sludge is more likely to compact into blocks, which will cause the sludge to be squeezed out from the gap between the rings, and even the spiral stacker cannot complete the dewatering work normally.

[0005] Secondly, after the shaft is blocked, since the static ring and the dynamic ring are an integrated structure, the only thing to do is to dismantle the reduction motor, pull out the spiral shaft, clean the compacted sludge, and then reinstall it. Due to the large size of the spiral stacking machine, large machinery is required to complete the disassembly operation, which is very troublesome and seriously affects work efficiency. Summary of the invention

[0006] The purpose of the present invention is to provide an integrated sludge concentration and dehydration treatment device and method, which can perform preliminary filtration on sewage. Similarly, by utilizing the combined structure of a static ring and a dynamic ring, the degree of freedom of the dynamic ring of the concentration section is improved, so that it can move simultaneously in the circumferential and radial directions, thereby reducing the probability of sludge blocking the shaft. After blockage, part of the dynamic ring and the static ring can be removed for easy cleaning.

[0007] The technical solution adopted by the present invention is as follows: A sludge concentration and dehydration integrated treatment equipment, comprising a bottom frame, a conditioning box installed at one end of the bottom frame, a treatment box installed at the other end of the bottom frame, a spiral body fixedly installed in the treatment box, and a spiral shaft penetrating through the spiral body; The spiral body is divided into a concentration section and a dehydration section; wherein, The concentrating section is formed by alternately stacking the first stationary ring and the first dynamic ring. The outer rings of the two side surfaces of the first stationary ring are staggered and integrally formed with inserts, and when the first stationary rings are stacked, the inserts are staggered and butted against each other to form an annular encircling ring. The first dynamic ring is embedded in the encircling ring. The outer diameter of the first dynamic ring is smaller than the inner diameter of the encircling ring, so that the first dynamic ring can move circumferentially and radially in the encircling ring. The dehydration section is formed by alternately stacking a second static ring, a limiting ring and a second dynamic ring. The limiting ring is arranged in a circular array on the outer periphery of the second dynamic ring to limit the circumferential rotation of the second dynamic ring within a limited range.

[0008] As a preferred solution, the first stationary ring is formed by an alternating combination of two groups of first semi-ring bodies, a first fixing ear is integrally formed on the top of the first semi-ring body, and a combined fixing ear is integrally formed at the combined port, and combination rings and semi-ring grooves are alternately arranged on both sides of the two groups of combined fixing ears.

[0009] As a preferred solution, the insert is in a "Z" shape, and has staggered notches at both ends for mutual stacking and clamping.

[0010] As a preferred solution, the inner ring surface of the first moving ring is provided with outer grooves in a circumferential array, and the outer surface is provided with outer grooves in a circumferential array corresponding to the outer grooves, so as to increase the friction of the contact surface.

[0011] As a preferred solution, a second fixing ear having the same shape as the first fixing ear is integrally formed on the second stationary ring, and the limiting ring and the second fixing ear are matched and arranged in the same number.

[0012] As a preferred solution, the second fixing ear and the limiting ring are stacked in series through a pull rod, the second moving ring is limited in the annular ring formed by the limiting ring, the outer diameter of the second moving ring is the same as the inner diameter of the annular ring, and the first fixing ear and the combination ring are also stacked in series through the pull rod.

[0013] As a preferred solution, the second moving ring is composed of two groups of second semi-ring bodies staggered together, Z-shaped notches are staggered at both ends of the second semi-ring bodies, and matching limiting grooves and limiting protrusions are respectively provided on the surfaces of the two groups of Z-shaped notches.

[0014] As a preferred solution, a metering box is integrally formed on one side of the conditioning box away from the treatment box, and a communication port is opened between the metering box and the bottom of the metering box, and a filter chamber assembly for primary filtration of sewage is installed in the communication port, which includes a rotating support shaft rotatably connected between the side walls of the communication port and filter chambers arranged in a circumferential array on the rotating support shaft; The rotating shaft is provided with supporting leaves in a circumferential array, and the filter bin is installed in adjacent gaps between the supporting leaves; The filter bin has filter holes arranged in an array on the arc surface, and conical petals are installed inside the filter holes to collect large particles of impurities into the filter bin; The support leaf is provided with a mounting groove at one end away from the rotating support shaft, and connecting folded edges are integrally formed on both sides of the extended end of the filter bin and are snap-fitted and embedded in the mounting groove. A fastening strip is embedded in the center of the mounting groove by screws to fasten the connecting folded edges inside it.

[0015] As a preferred embodiment, the filter bin assembly also includes a rubber brush arranged at the top and bottom ends of the connecting port, the rubber brush is tangentially attached to the outer surface of the filter bin to clean its surface, and the rubber brush is fixedly connected to a clamping seat fixed to the side wall of the connecting port.

[0016] A sludge concentration and dehydration integrated treatment method, using the above-mentioned sludge concentration and dehydration integrated treatment equipment, comprises the following steps: Step 1: The sewage and the medicine are fully mixed in the conditioning box and then transported to the spiral body, and the sewage mixture is gradually transported from the concentration section to the dehydration section of the spiral body through the spiral rotation of the spiral shaft; Step 2: When passing through the concentration section, the spiral shaft rotates continuously, driving the sewage mixture in the stacked spiral body to rotate at the same time. The spirally rotating sewage mixture will synchronously drive the first moving ring to rotate, so as to perform circumferential and radial displacement within the range limited by the insert, and use radial pushing force and gravity to filter out water from the stacking gaps of the inserts to quickly concentrate the sludge; Step 3: With the continuous rotation and pushing of the spiral shaft, the sewage mixture that has passed through the concentration section will enter the dehydration section. The concentrated sludge will continue to move forward with the rotation of the spiral shaft. Along the direction of the mud cake outlet, the spiral shaft pitch gradually decreases. At the same time, the gap between the second moving ring and the second static ring also gradually decreases, so that the pressure on the sludge is gradually increased, and the water is squeezed out and discharged under the pressure of the back pressure plate at the outlet, completing the dehydration; Step 4: When the shaft is blocked by sludge, remove the fixed shaft of the first stationary ring, and remove the two sets of first half ring bodies from the top and bottom of the spiral shaft respectively, so as to create a larger gap between the first moving rings. Then use high-pressure water flow to flush the sludge lumps and discharge them from the gap to complete the dredging of the inside of the spiral body. Then, assemble the first half ring body on the spiral shaft again through the fixed shaft, and repeat steps one to three to concentrate and dehydrate the sludge.

[0017] The technical effects achieved by the present invention are: The present invention forms a concentrated section of a stacked spiral body by stacking the first stationary ring and the first moving ring, and forms an annular encirclement with a larger diameter by cross-stacking the embedded blocks, so that the first moving ring can make circumferential and radial displacements in the annular encirclement. Compared with the traditional structure that can only produce circumferential displacement, the radial displacement can accelerate the discharge of filtered water, and the embedded blocks can block the sludge and prevent it from being discharged from between the ring pieces, thereby reducing the probability of sludge blocking the shaft and ensuring the smooth progress of sludge concentration and dehydration.

[0018] The present invention provides a filter bin assembly, and utilizes the filter holes and conical petals to cooperate with each other to filter large particles in sewage, so that under the action of the impact force of the water flow, the conical petals are pushed open and enter the filter bin to be collected. At the same time, the filter bin can use the impact force of the water flow to drive the filter bin to rotate during the flow of sewage, and the large particles can be collected evenly by the filter bin to avoid clogging of a certain filter bin that affects filtration and the passage of sewage. At the same time, the sewage and the medicine can be fully stirred during the rotation process to ensure that they are fully mixed.

[0019] The present invention arranges the first stationary ring and the second moving ring as a separable structure. The first stationary ring is stacked in series through a pull rod during normal use and can be stably combined into one body to provide stable support for the first moving ring. At the same time, the second moving rings are combined opposite to each other in a manner that the shape can be kept stable within the annular ring with the same inner diameter formed by the limit ring and will not separate, so that they can work stably. When the shaft is blocked, it can be easily removed from the spiral shaft by removing the pull rod, thereby facilitating the cleaning of the blocked sludge, improving the cleaning efficiency after the shaft is blocked, and further improving the sludge concentration and dehydration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 is a schematic cross-sectional structural diagram of an embodiment of the present invention; Figure 3 Schematic diagram of the combined structure of the spiral body and the spiral shaft in an embodiment of the present invention; Figure 4 The present invention Figure 3 A schematic diagram of a cross-sectional structure viewed from above; Figure 5 2 is a schematic diagram of a combined stacking structure of a first stationary ring and a first dynamic ring in an embodiment of the present invention; Figure 6 The present invention Figure 5 Exploded diagram of Figure 7 2 is a schematic diagram of the front view structure of the combination of the first static ring and the first dynamic ring in an embodiment of the present invention; Figure 8is an exploded view of the first static ring in an embodiment of the present invention; Fig. 9 2 is a schematic diagram of a combined stacking structure of a second static ring, a limit ring and a second dynamic ring in an embodiment of the present invention; Fig.10 The present invention Fig. 9 Exploded diagram of Fig.11 2 is a schematic diagram of the front view structure of the combination of the second static ring, the limit ring and the second dynamic ring in an embodiment of the present invention; Fig.12 is an exploded view of the second moving ring in an embodiment of the present invention; Fig.13 The present invention Fig.12 A magnified view of the part in the middle; Fig.14 is a schematic structural diagram of a filter bin assembly in an embodiment of the present invention; Fig.15 The present invention Fig.14 A schematic cross-sectional structure diagram of ; Fig.16 The present invention Fig.15 A magnified view of the part in middle B; Fig.17 is a schematic structural diagram of a rotating support shaft in an embodiment of the present invention; Fig.18 is a schematic diagram of the structure of the filter bin in an embodiment of the present invention; Fig.19 The present invention Fig.18 Enlarged view of the part C in the middle.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Bottom frame; 11. Base box; 2. Tempering box; 21. Metering box; 22. Feed pipe; 23. Dosing pipe; 24. Liquid level meter; 25. Electric control box; 26. First reduction motor; 27. Stirring impeller; 28. Connecting port; 3. Processing box; 31. nozzle; 32. nozzle; 4. Spirochete; 41, first stationary ring; 411, first semi-ring body; 412, first fixing ear; 413, insert block; 414, missing groove; 415, combined fixing ear; 416, combined ring; 417, semi-ring groove; 42, first moving ring; 421, inner angle groove; 422, outer edge groove; 43. second stationary ring; 431. second fixing ear; 44. Limiting ring; 45, second moving ring; 451, second semi-ring body; 452, Z-shaped notch; 453, limiting groove; 454, limiting protrusion; 46. ​​Pull rod; 47. Support seat; 5. Screw shaft; 51. Bearing seat bin; 52. Discharging bin; 53. Second reduction motor; 6. Filter chamber assembly; 61, rotating support shaft; 611, supporting leaf; 612, mounting groove; 62, filter chamber; 621, filter hole; 622, conical petal; 623, connecting folded edge; 63. Fastening strip; 64. Rubber brush; 641. Clamping seat. DETAILED DESCRIPTION

[0022] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0023] like Figure 1-Figure 19 As shown, a sludge concentration and dehydration integrated treatment equipment comprises a bottom frame 1, a conditioning box 2 installed at one end of the bottom frame 1, a treatment box 3 installed at the other end of the bottom frame 1, a spiral body 4 fixedly installed in the treatment box 3, and a spiral shaft 5 penetrating through the spiral body 4; the sewage is flocculated by adding chemicals in the conditioning box 2, and after being fully mixed, it is input into the spiral body 4 in the treatment box 3, and the sewage is gradually transported from the inlet end to the outlet end by the rotation of the spiral shaft 5, and the sludge is squeezed into mud cakes for discharge after being concentrated and dehydrated.

[0024] A base box 11 is installed on the bottom frame 1, and a processing box 3 is installed on the base box 11. The water filtered out from the spiral body 4 is discharged into the base box 11 through the processing box 3 for collection, or directly discharged through its outlet.

[0025] Refer to the attached Figure 1-Figure 2A metering box 21 is integrally formed on one side of the conditioning box 2 away from the treatment box 3, and a dosing pipe 23 is installed on one side thereof so as to add drugs (polyacrylamide, etc.) so as to make the sludge in the sewage produce flocculation under the action of charge neutralization and adsorption bridging, and a feeding pipe 22 extending to the top of the metering box 21 is installed at the bottom of the metering box 21 so as to continuously transport the sewage to be treated therein, and a first reduction motor 26 is installed on the top of the conditioning box 2, which is connected to a rotating shaft extending into the conditioning box 2 through a reducer, and a stirring impeller 27 is fixedly installed on the rotating shaft so as to stir and mix the drugs and sewage fully and make the reaction more thorough, and a liquid level meter 24 is installed on one side of the conditioning box 2 so as to monitor the amount of sewage in the conditioning box 2 and quantitatively dosing the drugs based on it.

[0026] It should be noted that an electric control box 25 is installed on one side of the quenching and tempering box 2 for controlling the operation of the equipment so as to allow manual participation in controlling the equipment.

[0027] Reference Figure 2 as well as Figure 14-Figure 19 In order to filter the sewage, filter and collect large particles (such as stones) and hard materials to avoid affecting the concentration and dehydration of the sludge, a connecting port 28 is opened between the conditioning box 2 and the bottom of the metering box 21, and a filter bin assembly 6 for primary filtration of sewage is installed in the connecting port 28, which includes a rotating support shaft 61 rotatably connected between the side walls of the connecting port 28 and a filter bin 62 arranged in a circular array on the rotating support shaft 61. The filter bin 62 can be driven to rotate by the impact force of the water flow to collect large particles in the sewage.

[0028] Specific reference Figure 14-15 Six groups of supporting leaves 611 are installed in a circular array on the rotating support shaft 61. The impact force of the sewage flow acts on the supporting leaves 611 to drive the rotating support shaft 61 and the filter bin 62 fixed thereon to rotate synchronously. At the same time, six groups of three-dimensional fan-shaped filter bins 62 are installed in adjacent gaps between the supporting leaves 611. Filter holes 621 are arranged in an array on the arc surface, and conical petals 622 made of rubber material (such as Fig.16 and Fig.19 As shown in the figure, when large particles are carried by sewage into the conical petal 622 through the filter hole 621, the upper valve will be continuously opened to allow the large particles to enter the filter bin 62 smoothly. The conical petal 622 will then be reset, so that water, sludge and other flocculants can pass through the structure into the conditioning box 2, while large particles of impurities cannot pass through and will be collected in the filter bin 62 to complete the filtration of sewage, so that the large particles of impurities will not affect the normal concentration and dehydration of the sludge. At the same time, during the continuous rotation of the filter bin 62, it can be avoided that a filter bin 62 is blocked to affect the filtration and the passage of sewage. At the same time, the sewage and the medicine can be fully stirred during the rotation to ensure that they are fully mixed.

[0029] Specific reference Figure 16-18 In order to facilitate the installation and disassembly of the filter bin 62, a mounting groove 612 is provided at the end of the support leaf 611 away from the rotating support shaft 61, and connecting folded edges 623 that are snap-fitted and embedded in the mounting groove 612 are integrally formed on both sides of the extended end of the filter bin 62. By embedding the fastening strip 63 in the center of the mounting groove 612 with a screw, the connecting folded edge 623 inside can be pressed to prevent it from detaching; and when cleaning is required, the fastening strip 63 only needs to be removed to remove the filter bin 62 from the support leaf 611, which is convenient for cleaning the large particles inside. At the same time, it is easy to disassemble for later maintenance.

[0030] Secondly, refer to Figure 14-15 In order to prevent the filtering surface of the filter bin 62 from being blocked, rubber brushes 64 are installed at the top and bottom ends of the connecting port 28. The rubber brush 64 is fixedly installed on the side wall of the connecting port 28 through a clamping seat 641. At the same time, the rubber brush 64 is tangentially attached to the outer surface of the filter bin 62, and the filtering surface of the filter bin 62 is continuously cleaned during the continuous rotation process to prevent the filtering surface from being blocked, so as to ensure its filtering effect.

[0031] Refer to the attached Figure 3-Figure 4 In this embodiment, two groups of spiral shafts 5 and spiral stacking bodies 4 are arranged in parallel and are installed in the processing box 3 in an inclined and parallel manner. The spiral stacking bodies 4 are divided into a concentration section and a dehydration section, which respectively concentrate and dehydrate the sludge.

[0032] Please refer to the attached Figure 5-Figure 6 , wherein the concentration section is formed by alternately stacking the first static ring 41 and the first dynamic ring 42, the outer rings of the two side surfaces of the first static ring 41 are staggered and integrally formed with inserts 413, and when the first static rings 41 are stacked, the inserts 413 are staggered and docked with each other to form an annular encirclement, and the first dynamic ring 42 is embedded in the encirclement, and at the same time, the outer diameter of the first dynamic ring 42 is smaller than the inner diameter of the encirclement, and the inner diameter of the first static ring 41 is the same as the outer diameter of the spiral shaft 5, while the inner diameter of the first dynamic ring 42 is smaller than the outer diameter of the spiral shaft 5, so that when the spiral shaft 5 rotates, the sludge mixture will be driven to rotate at the same time, so that the sludge is used to drive the first dynamic ring 42 to rotate circumferentially, and at the same time, the radial extrusion of the sludge will cause radial displacement in the annular encirclement formed by the inserts 413, and then realize radial displacement in the process of continuous circumferential rotation, while improving the sludge concentration effect, it can continuously push water out of the stacking gap of the first static ring 41.

[0033] Secondly, please refer to the attached Figure 5After being staggered and stacked, the inserts 413 can form a stacking gap with the side of the first static ring 41 to allow water to pass through. At the same time, the inserts 413 cover the continuous annular gap, making it impossible for sludge to be discharged smoothly from the gap, thereby improving the situation where sludge is squeezed out from between the ring pieces when the shaft is blocked by sludge, thereby ensuring the smooth operation of the concentration section.

[0034] Furthermore, inner angle grooves 421 are provided in a circular array on the inner ring surface of the first movable ring 42, so that when the inner ring surface contacts the sludge mixture, the contact area can be increased, thereby increasing the contact friction, so that the sludge can more stably drive the first movable ring 42 to rotate during rotation, thereby improving the rotation efficiency, thereby ensuring the periodicity of circumferential rotation and radial rotation, and effectively discharging moisture; and outer edge grooves 422 are provided in a circular array on the outer surface of the first movable ring 42 corresponding to the outer edge grooves 422, so as to form a cutting edge on the outer surface of the first movable ring 42, and when large particles are squeezed into between the extrusion surfaces of the first movable ring 42 and the first static ring 41, the large particles can be crushed by the cutting force of the mutual rotation, thereby reducing the occurrence of blockage and ensuring that the equipment works stably.

[0035] Refer to the attached Figure 9-11 In this embodiment, the dehydration section is formed by alternately stacking the second stationary ring 43, the limiting ring 44 and the second moving ring 45, and four groups of limiting rings 44 are arranged in a circumferential array on the outer periphery of the second moving ring 45 to form an annular ring, thereby limiting the second moving ring 45 in the annular ring formed by the limiting ring 44, and the outer diameter of the second moving ring 45 is the same as the inner diameter of the annular ring, the inner diameter of the second stationary ring 43 and the second moving ring 45 is the same as the outer diameter of the screw shaft 5, and the stacking gap between the second stationary ring 43, the limiting ring 44 and the second moving ring 45 is gradually reduced compared with the stacking gap between the first stationary ring 41 and the first moving ring 42, so as to cooperate with the continuously reducing pitch of the screw shaft 5, gradually increase the internal pressure to dehydrate the sludge, and ensure that the sludge can be thoroughly dehydrated.

[0036] Of course, in other embodiments, the dehydration section may also be combined in a manner of alternately stacking the first static ring 41 and the first dynamic ring 42, which may be selected according to a specific usage scenario.

[0037] Refer to the attached Figure 8 In order to facilitate disassembly when the shaft is blocked, the first stationary ring 41 is composed of two groups of first semi-ring bodies 411 staggered together. At the same time, a first fixing ear 412 is integrally formed on the top of the first semi-ring body 411, and a combined fixing ear 415 is integrally formed at the combined port. Combination rings 416 and semi-ring grooves 417 are staggered on both sides of the two groups of combined fixing ears 415, and the thickness of each of them is half of the thickness of the first stationary ring 41.

[0038] When assembling, the combination ring 416 can be embedded into the semi-ring groove 417, and they can be stacked in series through the pull rod 46. At the same time, the first fixed ear 412 can be connected in series to realize the mutual assembly of the two. After that, the support seat 47 can be used in conjunction with nuts and other components to install it in the processing box 3 to form the concentration section of the stacked spiral body 4.

[0039] When it is blocked, the two groups of first semi-ring bodies 411 can be separated from each other and removed from the screw shaft 5 by removing the pull rod 46, thereby creating a larger sewage discharge gap. At the same time, a nozzle 31 is installed in the treatment box 3, and a nozzle 32 is installed in an array thereon, which can spray high-pressure water to clean the agglomerated sludge without disassembling the second reduction motor 53 and the screw shaft 5.

[0040] Furthermore, the insert 413 is in a "Z" shape, and has notches 414 formed at both ends, which can be mutually clamped together when stacked. In this way, the mutual interference of the inserts 413 can be utilized to prevent the first half ring body 411 from radial relative displacement, thereby ensuring the stability of the mutual combination of the first half ring body 411.

[0041] Please refer to the attached Figure 11-13 The second movable ring 45 is composed of two groups of second semi-ring bodies 451 which are staggered together, and Z-shaped notches 452 are staggered at both ends of the second semi-ring bodies 451. The surfaces of the two groups of Z-shaped notches 452 are respectively provided with matching limiting grooves 453 and limiting protrusions 454, so that when they are combined with each other, the limiting protrusions 454 can be embedded in the limiting grooves 453, so that their combination is stable and radial displacement cannot occur. At the same time, since the stacking gap between the second static rings 43 in the dehydration section is small, the gap between the second semi-ring body 451 and the side of the second static ring 43 is smaller than its own thickness, so there is no need to worry about the two groups of second semi-ring bodies 451 causing longitudinal displacement and separation. The second movable ring 45 is limited in the annular ring formed by the limiting ring 44, and the outer diameter of the second movable ring 45 is the same as the inner diameter of the annular ring, so that it can maintain a stable circular shape in the annular ring with the same inner diameter formed by the limiting ring 44, and will not separate due to rotation, so that dehydration work can be carried out stably.

[0042] It should be noted that a second fixing ear 431 having the same shape as the first fixing ear 412 is integrally formed on the second stationary ring 43, and six groups are provided in the present embodiment, and the limiting ring 44 is matched with the second fixing ear 431 and provided with the same number, and the second fixing ear 431 and the limiting ring 44 are also stacked in series through a pull rod 46, and are installed in the processing box 3 by using a support seat 47 in combination with nuts and other components to form a dehydration section of the stacked screw body 4.

[0043] When the shaft is blocked, the limit ring 44 can be removed by removing the pull rod 46, and the second half ring body 451 of the internal limit combination can be removed from both sides of the spiral shaft 5 to form a sewage discharge gap between the second static ring 43 to clean the agglomerated sludge.

[0044] Of course, in other embodiments, the second stationary ring 43 may be replaced by the first stationary ring 41 of a detachable structure, so as to remove the stationary ring of this section and improve the cleaning efficiency.

[0045] See attached Figure 1-Figure 3 A bearing seat bin 51 and a discharge bin 52 for supporting the rotation of the spiral shaft 5 are installed at both ends of the spiral shaft 5. The two are fixedly installed on the outer side of the two end surfaces of the processing box 3 through the support seat 47. The feed port on the bearing seat bin 51 is connected to the discharge port on the top of the tempering box 2 through a pipeline. The sewage fully mixed with the medicine can be transmitted to the stacking screw body 4 through the bearing seat bin 51 through the pipeline. At the same time, a second reduction motor 53 is also installed on the outer side of the discharge bin 52, which drives the spiral shaft 5 to rotate, and the input sewage is continuously transported upward in the stacking screw body 4 to complete concentration and dehydration.

[0046] like Figure 1-Figure 19 As shown, a sludge concentration and dehydration integrated treatment method, using the sludge concentration and dehydration integrated treatment equipment of this embodiment, includes the following steps: Step 1: The sewage is input into the metering box 21 through the feed pipe 22, and a certain amount of medicine is added through the dosing pipe 23. Then, the sewage is transported to the conditioning box 2 from the connecting port 28 at the bottom of the metering box 21 under the pushing force of the pump body. At the same time, the flowing sewage can drive the filter bin 62 to rotate continuously to filter and collect large particles of impurities. The filtered sewage in the conditioning box 2 is driven by the first reduction motor 26 to drive the stirring impeller 27 to rotate and stir the sewage and the medicine, and then transported to the stacking screw body 4. The second reduction motor 53 drives the spiral shaft 5 to rotate in the stacking screw body 4 to gradually transport the sewage mixture from the concentration section of the stacking screw body 4 to the dehydration section.

[0047] Step 2: When passing through the concentration section, the spiral shaft 5 rotates continuously, and at the same time drives the sewage mixture in the stacked spiral body 4 to rotate. The spirally rotating sewage mixture will synchronously drive the first movable ring 42 to rotate, so as to perform circumferential and radial displacement within the range limited by the insert 413, and utilize radial thrust and gravity to filter out moisture from the stacking gaps of the insert 413 to quickly concentrate the sludge.

[0048] Step 3: With the continuous rotation and pushing of the screw shaft 5, the sewage mixture that has passed the concentration section will enter the dehydration section. The concentrated sludge will continue to move forward with the rotation of the screw shaft 5. Along the mud cake outlet direction, the pitch of the screw shaft 5 gradually decreases. At the same time, the gap between the second moving ring 45 and the second static ring 43 also gradually decreases, so that the pressure on the sludge is gradually increased, and the water is squeezed out and discharged under the squeeze of the back pressure plate at the outlet to complete the dehydration.

[0049] Step 4: When the shaft is blocked by sludge, remove the pull rod 46 from the support seat 47, and remove the two groups of first semi-ring bodies 411 from the top and bottom of the spiral shaft 5 respectively, so as to produce a larger drainage gap between the first moving ring 42. At the same time, the second semi-ring body 451 can also be removed from both sides of the spiral shaft 5, so as to produce a larger drainage gap between the second static ring 43. Then, use the high-pressure water flow sprayed from the nozzle 32 to flush the sludge agglomerates and discharge them from the drainage gap to complete the unblocking of the inside of the spiral body 4. Then, reassemble the first semi-ring body 411 and the second semi-ring body 451 on the support seat 47 through the pull rod 46, and put them on the outer surface of the spiral shaft 5. Then, repeat steps 1 to 3 to concentrate and dehydrate the sludge.

[0050] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A sludge concentration and dehydration integrated treatment device, comprising a bottom frame (1), a conditioning box (2) mounted on one end of the bottom frame (1), a treatment box (3) mounted on the other end of the bottom frame (1), a spiral body (4) fixedly mounted in the treatment box (3), and a spiral shaft (5) penetrating through the spiral body (4), characterized in that: The spiral body (4) is divided into a concentration section and a dehydration section; wherein, The concentrating section is formed by alternately stacking first stationary rings (41) and first moving rings (42); the outer rings of both side surfaces of the first stationary rings (41) are staggered and integrally formed with inserts (413); and when the first stationary rings (41) are stacked, the inserts (413) are staggered and butted against each other to form an annular encircling ring, and the first moving ring (42) is embedded in the encircling ring; the outer diameter of the first moving ring (42) is smaller than the inner diameter of the encircling ring, so that the first moving ring (42) can move circumferentially and radially in the encircling ring; The dehydration section is formed by alternately stacking a second stationary ring (43), a limiting ring (44) and a second moving ring (45); the limiting ring (44) is arranged in a circular array on the outer circumference of the second moving ring (45) to limit the circumferential rotation of the second moving ring (45) within a limited range.

2. The sludge concentration and dehydration integrated treatment equipment according to claim 1 is characterized by: The first stationary ring (41) is formed by staggered combination of two groups of first semi-ring bodies (411); a first fixing ear (412) is integrally formed on the top of the first semi-ring body (411); and a combined fixing ear (415) is integrally formed at the combined port; and combined rings (416) and semi-ring grooves (417) are respectively and alternately provided on the two side surfaces of the two groups of combined fixing ears (415).

3. The sludge concentration and dehydration integrated treatment equipment according to claim 1 is characterized by: The insert (413) is in a "Z" shape, and has staggered notches (414) at both ends for mutual stacking and locking.

4. The sludge concentration and dehydration integrated treatment equipment according to claim 1 is characterized by: The first moving ring (42) has an inner ring surface with an inner corner groove (421) in a circumferential array, and an outer surface with an outer edge groove (422) in a circumferential array corresponding to the outer edge groove (422) to increase the friction of the contact surface.

5. The sludge concentration and dehydration integrated treatment equipment according to claim 2 is characterized by: The second stationary ring (43) is integrally formed with a second fixing ear (431) having the same shape as the first fixing ear (412), and the limiting ring (44) is arranged to match the second fixing ear (431) and the same number is arranged.

6. The sludge concentration and dehydration integrated treatment equipment according to claim 5 is characterized by: The second fixing ear (431) and the limiting ring (44) are stacked in series via a pull rod (46); the second movable ring (45) is confined within an annular ring formed by the limiting ring (44); the outer diameter of the second movable ring (45) is the same as the inner diameter of the annular ring; the first fixing ear (412) and the combined ring (416) are also stacked in series via the pull rod (46).

7. The sludge concentration and dehydration integrated treatment equipment according to claim 1 is characterized by: The second movable ring (45) is composed of two groups of second semi-ring bodies (451) which are staggered together. Z-shaped notches (452) are staggeredly provided at both ends of the second semi-ring bodies (451), and mutually matching limiting grooves (453) and limiting protrusions (454) are respectively provided on the surfaces of the two groups of Z-shaped notches (452).

8. The sludge concentration and dehydration integrated treatment equipment according to claim 1 is characterized by: A metering box (21) is integrally formed on a side of the conditioning box (2) away from the treatment box (3), and a communicating port (28) is provided between the metering box (21) and the bottom thereof, wherein a filter chamber assembly (6) for primary filtration of sewage is installed in the communicating port (28), and comprises a rotating support shaft (61) rotatably connected between the side walls of the communicating port (28) and filter chambers (62) arranged in a circumferential array on the rotating support shaft (61); Support leaves (611) are installed in a circumferential array on the rotating support shaft (61), and the filter bin (62) is installed in adjacent gaps between the support leaves (611); The filter bin (62) has filter holes (621) arranged in an array on the arc surface, and conical petals (622) are installed inside the filter holes (621) to collect large particle impurities into the filter bin (62); The support leaf (611) is provided with a mounting groove (612) at one end away from the rotating support shaft (61), and connecting folded edges (623) are integrally formed on both sides of the outer extension end of the filter bin (62) and are snap-fitted and embedded in the mounting groove (612), and a fastening strip (63) is embedded in the center of the mounting groove (612) by means of screws to fasten the connecting folded edges (623) inside the mounting groove (612).

9. The sludge concentration and dehydration integrated treatment equipment according to claim 8, characterized in that: The filter bin assembly (6) further comprises a rubber brush (64) arranged at the top and bottom ends of the communication port (28); the rubber brush (64) is tangentially attached to the outer surface of the filter bin (62) to clean the surface; the rubber brush (64) is fixedly connected to a clamping seat (641) fixed to the side wall of the communication port (28).

10. A sludge concentration and dehydration integrated treatment method, using the sludge concentration and dehydration integrated treatment equipment according to any one of claims 2 to 9, characterized in that: The following steps are involved: Step 1: The sewage and the medicine are fully mixed in the conditioning box (2) and then transported to the spiral body (4), and the sewage mixture is gradually transported from the concentration section to the dehydration section of the spiral body (4) through the spiral rotation of the spiral shaft (5); Step 2: When passing through the concentration section, the spiral shaft (5) rotates continuously, driving the sewage mixture in the stacked spiral body (4) to rotate at the same time. The spirally rotating sewage mixture will synchronously drive the first moving ring (42) to rotate, so as to perform circumferential and radial displacement within the range limited by the insert (413). The radial pushing force and gravity are used to filter out water from the stacking gaps of the insert (413), so as to quickly concentrate the sludge. Step 3: As the spiral shaft (5) rotates and pushes continuously, the sewage mixture that has passed through the concentration section enters the dehydration section. The concentrated sludge continuously moves forward as the spiral shaft (5) rotates. Along the direction of the mud cake outlet, the pitch of the spiral shaft (5) gradually decreases. At the same time, the gap between the second moving ring (45) and the second static ring (43) also gradually decreases, so that the pressure on the sludge is gradually increased, and the water is squeezed out and discharged under the pressure of the back pressure plate at the outlet, thereby completing the dehydration. Step 4: When the shaft is blocked by sludge, the fixed shaft of the first stationary ring (41) is removed, and the two sets of first semi-ring bodies (411) are removed from the top and bottom of the spiral shaft (5) respectively, so as to form a larger gap between the first moving rings (42). The sludge lumps are then flushed with a high-pressure water flow to be discharged from the gap to complete the dredging of the inside of the spiral body (4). The first semi-ring body (411) is then reassembled on the spiral shaft (5) through the fixed shaft, and steps 1 to 3 can be repeated to concentrate and dehydrate the sludge.

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