Integrated sludge concentration and dehydration treatment equipment and method

Abstract

The present invention belongs to the technical field of sludge dewatering equipment, and specifically relates to an integrated sludge concentration and dewatering treatment device and method, comprising a bottom frame, a conditioning box mounted on one end of the bottom frame, a treatment box mounted on the other end of the bottom frame, a spiral body fixedly mounted in the treatment box, and a spiral shaft running through the spiral body; the spiral body is divided into a concentration section and a dewatering section; wherein the concentration section is formed by alternating stacking of a first static ring and a first dynamic ring, the outer rings of both sides of the first static ring are staggered and integrally formed with inserts, and when the first static rings are stacked, the inserts are staggered and docked with each other to form an annular encirclement, and the first dynamic ring is embedded in the encirclement, and the outer diameter of the first dynamic ring is smaller than the inner diameter of the encirclement. The present invention can perform preliminary filtration on sewage, improve the degree of freedom of the dynamic ring of the concentration section, enable it to move simultaneously in the circumferential and radial directions, reduce the probability of sludge blocking the shaft, and after clogging, some of the dynamic rings and static rings can be removed for easy cleaning.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge dewatering equipment, and in particular relates to 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 concentration and dehydration treatment 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 stacker is based on the principles of screw extrusion and filtration. It is divided into two main sections: the concentration section and the dewatering section. It uses alternating static and dynamic rings to form a spiral stack around the spiral shaft. As the spiral propeller shaft rotates, the multiple dynamic rings positioned around the propeller shaft move relative to each other. Under the action of gravity, water is filtered out through the gaps between the relatively moving stacks, achieving rapid sludge concentration. Simultaneously, the gap between the static and dynamic rings in the dewatering section gradually decreases, and the spiral shaft distance also continuously decreases, thereby utilizing internal pressure to complete the sludge dewatering.

[0004] However, in actual use, due to improper operation or diverse sludge characteristics, the above equipment may be mixed with large particles such as stones that have not been thoroughly cleaned, resulting in sludge blocking in the dewatering section of the spiral body. That is, the sludge is adsorbed on the spiral shaft and rotates with the spiral shaft. Since the volume of the spiral body is limited, the more sludge there is, the greater the internal pressure is, and the sludge is more likely to form lumps, 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 both integrated structures, the only thing to do is to dismantle the reduction motor, pull out the spiral shaft, clean the compacted sludge, and then reinstall it. Since the spiral stacking machine is large in size, it requires the help of large machinery 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 static ring and 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 static ring can be removed for easy cleaning.

[0007] The technical solutions adopted by the present invention are as follows:

[0008] A sludge concentration and dehydration integrated treatment device, 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 passing through the spiral body;

[0009] The spiral body is divided into a concentration section and a dehydration section; wherein,

[0010] The concentrating section is formed by alternating stacking of first stationary rings and first dynamic rings. The outer rings of both sides of the first stationary rings are staggered and integrally formed with inserts. When the first stationary rings are stacked, the inserts are staggered and docked with 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 within the encircling ring.

[0011] The dehydration section is formed by alternately stacking a second static ring, a limiting ring and a second dynamic ring. The limiting rings are arranged in a circular array on the outer periphery of the second dynamic ring to limit its circumferential rotation within a limited range.

[0012] As a preferred solution, the first static ring is formed by an interlaced 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 the two sides of the two groups of combined fixing ears are interlaced with combined rings and semi-ring grooves.

[0013] As a preferred solution, the insert is in a "Z" shape, and has slots staggered at both ends for stacking and snapping together.

[0014] As a preferred solution, the inner ring surface of the first dynamic 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 to increase the friction of the contact surface.

[0015] 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 is matched with the second fixing ear and the same number is provided.

[0016] As a preferred solution, the second fixing ear and the limiting ring are stacked in series through a pull rod, the second movable ring is confined in the annular ring formed by the limiting ring, the outer diameter of the second movable 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.

[0017] As a preferred solution, the second movable ring is composed of two groups of second semi-ring bodies staggered together, and 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.

[0018] As a preferred solution, a metering box is integrally formed on a 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;

[0019] Support leaves are installed in a circumferential array on the rotating support shaft, and the filter bin is installed in the adjacent gaps between the support leaves;

[0020] The filter bin is provided with filter holes 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;

[0021] The support leaf is provided with a mounting groove at one end away from the rotating support shaft, and connecting folds 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 folds inside it.

[0022] As a preferred solution, the filter bin assembly also includes a rubber brush arranged at the top and bottom ends of the connecting port, and the rubber brush is tangentially attached to the outer surface of the filter bin to clean its surface. The rubber brush is fixedly connected to a clamping seat fixed to the side wall of the connecting port.

[0023] A sludge concentration and dehydration integrated treatment method, using the above-mentioned sludge concentration and dehydration integrated treatment equipment, comprises the following steps:

[0024] Step 1: The sewage and the medicine are fully mixed in the conditioning box and then transported to the spiral body. The spiral shaft rotates to gradually transport the sewage mixture from the concentration section to the dehydration section of the spiral body.

[0025] Step 2: When passing through the concentration section, the spiral shaft rotates continuously, driving the sewage mixture in the stacked spiral body to rotate. The spirally rotating sewage mixture will synchronously drive the first moving ring to rotate, so as to move circumferentially and radially within the range limited by the insert. The radial pushing force and gravity are used to filter out water from the stacked gaps of the inserts, and the sludge is quickly concentrated.

[0026] Step 3: As the screw shaft rotates continuously, the sewage mixture that has passed through the concentration section enters the dehydration section. The concentrated sludge moves forward continuously with the rotation of the screw shaft. The screw pitch gradually decreases along the direction of the mud cake outlet. At the same time, the gap between the second moving ring and the second static ring also gradually decreases, causing the pressure on the sludge to gradually increase. The water is squeezed out and discharged under the pressure of the back pressure plate at the outlet, completing the dehydration.

[0027] Step 4: When the shaft is blocked by sludge, remove the fixed shaft of the first static ring and remove the two sets of first half ring bodies from the top and bottom of the spiral shaft respectively, thereby creating 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 reassemble the first half ring body on the spiral shaft through the fixed shaft, and repeat steps one to three to concentrate and dehydrate the sludge.

[0028] The technical effects achieved by the present invention are:

[0029] The present invention stacks the first static ring and the first dynamic ring to form a spiral-stacked concentration section, and uses cross-stacked inserts to form an annular encirclement with a larger diameter, so that the first dynamic ring can make circumferential and radial displacements within 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 inserts 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.

[0030] 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 evenly collected by the filter bin to avoid the blockage of a certain filter bin affecting the 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.

[0031] The present invention sets the first static ring and the second dynamic ring as a separable structure. The first static ring is stacked in series through a pull rod during normal use, and can be stably combined into one, providing stable support for the first dynamic ring. At the same time, the second dynamic rings are combined in opposite directions to each other, and can maintain a stable shape 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

[0032] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention;

[0033] Figure 2 is a schematic cross-sectional structural diagram of an embodiment of the present invention;

[0034] Figure 3 Schematic diagram of the combined structure of the spiral body and the spiral shaft in an embodiment of the present invention;

[0035] Figure 4 This invention Figure 3 A schematic diagram of a top-view cross-sectional structure;

[0036] Figure 5 2 is a schematic diagram of the combined stacking structure of the first stationary ring and the first dynamic ring in an embodiment of the present invention;

[0037] Figure 6 This invention Figure 5 Exploded diagram;

[0038] 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;

[0039] Figure 8 is an exploded view of the first static ring in an embodiment of the present invention;

[0040] Figure 9 2 is a schematic diagram of the combined stacking structure of the second static ring, the limit ring and the second dynamic ring in an embodiment of the present invention;

[0041] Figure 10 This invention Figure 9 Exploded diagram;

[0042] Figure 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;

[0043] Figure 12 is an exploded view of the second dynamic ring in an embodiment of the present invention;

[0044] Figure 13 This invention Figure 12 A magnified view of the part in the middle;

[0045] Figure 14 2 is a schematic structural diagram of a filter cartridge assembly according to an embodiment of the present invention;

[0046] Figure 15 This invention Figure 14 Schematic diagram of the cross-sectional structure;

[0047] Figure 16 This invention Figure 15 A magnified view of the part in middle B;

[0048] Figure 17 This is a schematic structural diagram of a rotating support shaft according to an embodiment of the present invention;

[0049] Figure 18 This is a schematic structural diagram of a filter bin in an embodiment of the present invention;

[0050] Figure 19 This invention Figure 18 Enlarged view of the part C in the middle.

[0051] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0052] 1. Bottom frame;

[0053] 11. Base box;

[0054] 2. Tempering box;

[0055] 21. Metering box; 22. Feed pipe; 23. Dosing pipe; 24. Liquid level gauge; 25. Electric control box; 26. First reduction motor; 27. Mixing impeller; 28. Connecting port;

[0056] 3. Processing box;

[0057] 31. Nozzle; 32. Nozzle;

[0058] 4. Spirochete;

[0059] 41. First stationary ring; 411. First semi-ring body; 412. First fixing ear; 413. Insert; 414. Slot; 415. Combined fixing ear; 416. Combined ring; 417. Semi-ring groove;

[0060] 42, first moving ring; 421, inner corner groove; 422, outer edge groove;

[0061] 43. Second stationary ring; 431. Second fixing ear;

[0062] 44. Limiting ring;

[0063] 45. Second moving ring; 451. Second half ring; 452. Z-shaped notch; 453. Limiting groove; 454. Limiting protrusion;

[0064] 46. ​​Pull rod;

[0065] 47. Support seat;

[0066] 5. Screw shaft;

[0067] 51. Bearing seat; 52. Discharging bin; 53. Second reduction motor;

[0068] 6. Filter chamber assembly;

[0069] 61, rotating support shaft; 611, supporting leaf; 612, mounting slot;

[0070] 62. Filter chamber; 621. Filter hole; 622. Conical petals; 623. Connecting fold;

[0071] 63. Fastening strip;

[0072] 64. Rubber brush; 641. Clamping seat. DETAILED DESCRIPTION

[0073] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is described in detail below with reference to the following examples. It should be understood that the following text is only used to describe one or more specific embodiments of the present invention and does not strictly limit the scope of protection of the present invention.

[0074] like Figures 1-19 As shown, a sludge concentration and dehydration integrated treatment equipment includes 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 passing through the spiral body 4; the conditioning box 2 is used to add chemicals to cause sewage to produce flocculants, and after sufficient mixing, the sewage is input into the spiral body 4 in the treatment box 3, and the spiral shaft 5 rotates to gradually transport the sewage from the inlet end to the outlet end. After concentration and dehydration, the sludge is squeezed into a mud cake and discharged.

[0075] Among them, a base box 11 is installed on the bottom frame 1, and the 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.

[0076] Refer to the attached Figure 1-Figure 2 A metering box 21 is integrally formed on the side of the conditioning box 2 away from the treatment box 3, and a dosing pipe 23 is installed on one side thereof to add drugs (polyacrylamide, etc.) to make the sludge in the sewage produce flocculation under the action of charge neutralization and adsorption bridging. A feeding pipe 22 extending to the top of the metering box 21 is installed at the bottom to continuously transport the sewage to be treated into the interior. At the same time, 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 to stir and mix the drug and sewage fully, so that the reaction is more thorough. A liquid level meter 24 is installed on one side of the conditioning box 2 to monitor the amount of sewage in the conditioning box 2 and quantitatively add drugs based on this.

[0077] 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 that manual participation in controlling the equipment is possible.

[0078] Reference Figure 2 as well as Figures 14-19In order to filter the sewage 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 the sewage is installed in the connecting port 28. It 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.

[0079] Specific reference Figure 14-15 Six groups of support leaves 611 are installed in a circular array on the rotating support shaft 61. The impact force of the sewage flow acts on the support leaves 611, which can drive the rotating support shaft 61 and the filter chamber 62 fixed thereon to rotate synchronously. At the same time, six groups of three-dimensional fan-shaped filter chambers 62 are installed in the adjacent gaps between the support leaves 611. The filter holes 621 are arranged in an array on the arc surface, and conical petals 622 made of rubber material are installed inside the filter holes 621 (such as Figure 16 and Figure 19 As shown in the figure, when large particles are carried by sewage and enter the conical petals 622 through the filter holes 621, the upper valve will be continuously stretched to allow the large particles to enter the filter chamber 62 smoothly. The conical petals 622 will then be reset, allowing water, sludge and other flocculants to pass through the structure and enter the conditioning box 2, while large particles of impurities cannot pass through and will be collected in the filter chamber 62 to complete the filtration of the 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 chamber 62, it can prevent a filter chamber 62 from being blocked and affecting the filtration and the passage of sewage. At the same time, the sewage and the liquid medicine can be fully stirred during the rotation to ensure that they are fully mixed.

[0080] Specific reference Figure 16-Figure 18 In order to facilitate the installation and disassembly of the filter bin 62, a mounting groove 612 is opened at the end of the support leaf 611 away from the rotating support shaft 61, and the two sides of the outer extension end of the filter bin 62 are integrally formed with connecting folds 623 that are snap-fitted and embedded in the mounting groove 612. By inserting the fastening strip 63 into the center of the mounting groove 612 with a screw, the connecting fold 623 inside can be pressed tightly so that it cannot be detached; when cleaning is needed, the fastening strip 63 can be removed to remove the filter bin 62 from the support leaf 611, which is convenient for cleaning large particles inside it and easy to disassemble for later maintenance.

[0081] Secondly, refer to Figure 14-15In 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 brushes 64 are fixedly installed on the side walls of the connecting port 28 through a clamping seat 641. At the same time, the rubber brushes 64 are 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, thereby ensuring its filtering effect.

[0082] Refer to the attached Figure 3-Figure 4 In this embodiment, two groups of spiral shafts 5 and spiral bodies 4 are arranged side by side and installed obliquely and parallelly in the processing box 3. The spiral bodies 4 are divided into a concentration section and a dehydration section, which respectively concentrate and dehydrate the sludge.

[0083] Please refer to the attached Figure 5-Figure 6 The concentrating section is formed by alternatingly 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. 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. 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. In this way, when the spiral shaft 5 rotates, the sludge mixture is also driven to rotate, thereby using the sludge to drive the first dynamic ring 42 to rotate circumferentially. At the same time, the sludge is radially squeezed and radially displaced in the annular encirclement formed by the inserts 413. Then, radial displacement is achieved in the process of continuous circumferential rotation, thereby improving the sludge concentration effect and continuously pushing water out of the stacking gap of the first static ring 41.

[0084] Secondly, please refer to the attached Figure 5 After being staggered and stacked, the inserts 413 can form a stacking gap with the side surface 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.

[0085] Furthermore, an inner angle groove 421 is provided in a circumferential 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 an outer edge groove 422 is provided in a circumferential array corresponding to the outer edge groove 422 on the outer surface of the first movable ring 42, so as to form a cutting edge on the outer surface of the first movable ring 42. 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 the stable operation of the equipment.

[0086] Refer to the attached Figures 9-11 In this embodiment, the dehydration section is formed by alternatingly stacking the second static ring 43, the limiting ring 44 and the second dynamic ring 45. At the same time, four groups of limiting rings 44 are arranged in a circumferential array on the outer periphery of the second dynamic ring 45 to form an annular ring, thereby limiting the second dynamic ring 45 within the annular ring formed by the limiting ring 44. The outer diameter of the second dynamic ring 45 is the same as the inner diameter of the annular ring, and the inner diameter of the second static ring 43 and the second dynamic ring 45 is the same as the outer diameter of the spiral shaft 5. Moreover, the stacking gap between the second static ring 43, the limiting ring 44 and the second dynamic ring 45 is gradually reduced compared with the stacking gap between the first static ring 41 and the first dynamic ring 42, so as to cooperate with the continuously decreasing pitch of the spiral shaft 5, gradually increase the internal pressure to dehydrate the sludge, and ensure that the sludge can be thoroughly dehydrated.

[0087] 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.

[0088] Refer to the attached Figure 8 In order to facilitate disassembly when the shaft is blocked, the first static 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. The two sides of the two groups of combined fixing ears 415 are staggered with combined rings 416 and semi-ring grooves 417, and the thickness of both is half of the thickness of the first static ring 41.

[0089] During assembly, the combination ring 416 can be embedded into the semi-ring groove 417 and 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. Afterwards, 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.

[0090] When it is blocked, the two groups of first semi-ring bodies 411 can be separated from each other by removing the pull rod 46 and removed from the screw shaft 5, 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 removing the second reduction motor 53 and the screw shaft 5.

[0091] Furthermore, the insert 413 is in a "Z" shape, and has slots 414 staggered at both ends, which can be connected to each other 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 bodies 411.

[0092] Please refer to the attached Figure 11-13 The second movable ring 45 is composed of two groups of second semi-ring bodies 451 that are staggered and combined, 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, making their combination stable and unable to cause radial displacement. 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 surface 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, and the second movable ring 45 is limited to 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, thereby being able to perform dehydration work stably.

[0093] 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. At the same time, six groups are provided in this embodiment, and the limiting ring 44 is matched with the second fixing ear 431 and the same number is provided. The second fixing ear 431 and the limiting ring 44 are also stacked in series together through the pull rod 46, and are installed in the processing box 3 by using the support seat 47 in conjunction with nuts and other components to form a dehydration section of the stacked screw body 4.

[0094] 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.

[0095] Of course, in other embodiments, the second stationary ring 43 may be replaced by a first stationary ring 41 having a detachable structure, so that the stationary ring of this section can be removed to improve the cleaning efficiency.

[0096] Refer to the attached Figure 1-Figure 3 At both ends of the spiral shaft 5 are installed bearing seat warehouses 51 and discharge warehouses 52 for supporting its rotation. The two are fixedly installed on the outer side of the two end surfaces of the processing box 3 through support seats 47. The feed port on the bearing seat warehouse 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 spiral body 4 through the bearing seat warehouse 51 through the pipeline. At the same time, a second reduction motor 53 is also installed on the outer side of the discharge warehouse 52, which drives the spiral shaft 5 to rotate, and continuously transports the input sewage upward in the spiral body 4 to complete concentration and dehydration.

[0097] like Figures 1-19 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:

[0098] Step 1: The sewage is fed into the metering box 21 through the feed pipe 22, and a fixed 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 passes through the conditioning box 2 and is driven by the first reduction motor 26 to drive the stirring impeller 27 to rotate and stir the sewage and the medicine. After that, the sewage is transported to the spiral body 4, and the second reduction motor 53 drives the spiral shaft 5 to rotate spirally in the spiral body 4 to gradually transport the sewage mixture from the concentration section of the spiral body 4 to the dehydration section.

[0099] 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. The radial pushing force and gravity are used to filter out water from the stacking gaps of the insert 413, and the sludge is quickly concentrated.

[0100] Step 3: As the spiral shaft 5 rotates and pushes continuously, the sewage mixture that has passed through the concentration section will enter the dehydration section. The concentrated sludge continues to move forward with the rotation of the spiral shaft 5. 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 becomes smaller, so that the pressure on the sludge gradually increases, and the water is squeezed out and discharged under the pressure of the back pressure plate at the outlet, completing the dehydration.

[0101] 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, to create 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 to create 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 lumps 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 one to three to concentrate and dehydrate the sludge.

[0102] The foregoing is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained herein shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

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) passing 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 a first static ring (41) and a first dynamic ring (42), wherein the outer rings of both sides 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 encircling ring, and the first dynamic ring (42) is embedded in the encircling ring. The outer diameter of the first dynamic ring (42) is smaller than the inner diameter of the encircling ring, so that the first dynamic ring (42) can move circumferentially and radially in the encircling ring; The dehydration section is formed by alternately stacking a second static ring (43), a limiting ring (44) and a second dynamic ring (45); the limiting ring (44) is arranged in a circumferential array on the outer periphery of the second dynamic ring (45) to limit the circumferential rotation thereof within a limited range; A metering box (21) is integrally formed on a side of the conditioning box (2) away from the treatment box (3), and a communication 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 communication port (28), comprising a rotating support shaft (61) rotatably connected between the side walls of the communication port (28) and filter chambers (62) arranged in a circumferential array on the rotating support shaft (61); Filter holes (621) are arranged in an array on the arc surface of the filter bin (62), and conical petals (622) are installed inside the filter holes (621) to collect large particles of impurities into the filter bin (62).

2. The sludge concentration and dehydration integrated treatment equipment according to claim 1, characterized in that: The first stationary ring (41) is formed by staggered combination of two groups of first semi-ring bodies (411), the top of the first semi-ring body (411) is integrally formed with a first fixing ear (412), and the combination port is integrally formed with a combination fixing ear (415), and the two sides of the two groups of combination fixing ears (415) are staggeredly provided with combination rings (416) and semi-ring grooves (417).

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

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

5. The sludge concentration and dehydration integrated treatment equipment according to claim 2, characterized in 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 the limiting ring (44) is matched with the second fixing ear (431) and the same number is provided.

6. The sludge concentration and dehydration integrated treatment equipment according to claim 5, characterized in that: The second fixed ear (431) and the limiting ring (44) are stacked in series together by being provided with a pull rod (46); the second movable ring (45) is limited in the 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 fixed ear (412) and the combined ring (416) are also stacked in series together by being provided with the pull rod (46).

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

8. The sludge concentration and dehydration integrated treatment equipment according to claim 1, characterized in that: 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 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 chamber (62) and are snap-fitted and embedded in the mounting groove (612). A fastening strip (63) is embedded in the center of the mounting groove (612) via screws to fasten the connecting folded edges (623) therein.

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), wherein the rubber brush (64) is tangentially attached to the outer surface of the filter bin (62) to clean the surface thereof, and a clamping seat (641) fixed to the side wall of the communication port (28) is fixedly connected to the rubber brush (64).

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, 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 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), and the sludge is quickly concentrated. 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 gradually increases, 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, the fixed shaft of the first stationary ring (41) is removed, and the two sets of first half-ring bodies (411) are removed from the top and bottom of the spiral shaft (5) respectively, thereby generating a larger gap between the first moving rings (42). The sludge agglomerates are then flushed with high-pressure water flow to be discharged from the gap, thereby completing the dredging of the interior of the spiral body (4). The first half-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.

Images