CN119797721B - Sludge concentration and dehydration integrated treatment equipment and method - Google Patents
Sludge concentration and dehydration integrated treatment equipment and methodInfo
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- CN119797721B CN119797721B CN202510181409.6A CN202510181409A CN119797721B CN 119797721 B CN119797721 B CN 119797721B CN 202510181409 A CN202510181409 A CN 202510181409A CN 119797721 B CN119797721 B CN 119797721B
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Abstract
本发明属于污泥脱水设备技术领域，具体涉及一种污泥浓缩与脱水集成处理设备与方法，包括底框架、安装于底框架一端的调质箱、安装于底框架另一端的处理箱、固定安装于处理箱内的叠螺体以及贯穿于叠螺体内的螺旋轴；叠螺体分为浓缩段与脱水段；其中，浓缩段由第一静环与第一动环交替堆叠而成，第一静环两侧面外圈交错一体成型有嵌块，并在第一静环堆叠时相互将嵌块交错对接，形成环形包围圈，第一动环嵌入于该包围圈内，第一动环外径小于包围圈的内径。本发明能够对污水进行初滤，提高浓缩段动环的自由度，使其能够在周向和径向上同时移动，降低污泥堵轴的概率，并且在堵塞之后，能够将部分动环与静环拆除，方便进行清理。
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
The invention belongs to the technical field of sludge dewatering equipment, and particularly relates to sludge concentration and dewatering integrated treatment equipment and a method.
Background
Along with the development of technology, at the present stage, sludge concentration and dehydration integrated treatment equipment has a plurality of types, wherein the application is that the spiral shell stacking machine is widely used, and the spiral shell stacking machine has the advantages of small occupied area, high efficiency, energy saving, high automation degree and the like.
The working principle of the spiral shell stacking machine is mainly based on the spiral extrusion and filtration principle, and is mainly divided into two parts, namely a concentration section and a dehydration section. The spiral pile body is formed on the periphery of a spiral shaft by using a mode that a static ring and a movable ring are alternately stacked, and when the spiral pushing shaft rotates, a plurality of movable rings arranged on the periphery of the pushing shaft relatively move. Under the action of gravity, water is filtered out from the gaps of the relatively moving lamination sheets, so that the sludge is concentrated rapidly, meanwhile, the gap between the static ring and the moving ring of the dewatering section is gradually reduced, and meanwhile, the axial distance of the screw shaft is continuously reduced, so that the dewatering work of the sludge is completed by using the internal pressure.
However, in the actual use process of the device, large granular substances such as stones which are not cleaned thoroughly can be mixed in the device due to improper operation or diversified sludge characteristics, so that the phenomenon of blocking a shaft of sludge is generated in a spiral body stacking dehydration section, namely, the sludge is adsorbed on a spiral shaft and rotates along with the spiral shaft, and due to the fact that a spiral body stacking cavity is limited, the larger the amount of the sludge, the larger the generated internal pressure is, the more easily the sludge is hardened into blocks, the sludge can be extruded out of a ring piece gap, and even the spiral body stacking machine cannot normally complete dehydration work.
Secondly, because stationary ring and moving ring are all integral structure after stifled axle, can only dismantle gear motor, take out the screw axis and clear up the mud that hardens, install again, because fold spiral shell organism type great, need just can accomplish this dismantlement operation with the help of large-scale machinery, very troublesome, seriously influence work efficiency.
Disclosure of Invention
The invention aims to provide a sludge concentration and dehydration integrated treatment device and method, which can be used for carrying out primary filtration on sewage, and similarly, the combined structure of a static ring and a moving ring is utilized to improve the degree of freedom of the moving ring of a concentration section, so that the moving ring can move in the circumferential direction and the radial direction simultaneously, the probability of blocking a shaft by sludge is reduced, and after the shaft is blocked, part of the moving ring and the static ring can be removed, so that the cleaning is convenient.
The technical scheme adopted by the invention is as follows:
The sludge concentration and dehydration integrated treatment equipment comprises a bottom frame, a conditioning box arranged at one end of the bottom frame, a treatment box arranged at the other end of the bottom frame, a spiral stacking body fixedly arranged in the treatment box and a spiral shaft penetrating through the spiral stacking body;
the spiral stacking body is divided into a concentrating section and a dewatering section, wherein,
The concentrating section is formed by alternately stacking a first stationary ring and a first movable ring, wherein the outer rings of the two side surfaces of the first stationary ring are staggered and integrally formed with embedded blocks, the embedded blocks are mutually staggered and butted to form an annular surrounding ring when the first stationary ring is stacked, the first movable ring is embedded in the surrounding ring, and the outer diameter of the first movable ring is smaller than the inner diameter of the surrounding ring so as to enable the first movable ring to circumferentially and radially displace in the surrounding ring;
The dehydration section is formed by alternately stacking a second stationary ring, a limiting ring and a second movable ring, and the limiting ring is circumferentially arranged on the periphery of the second movable ring so as to limit the second movable ring to circumferentially rotate within a limited range.
As a preferable scheme, the first stationary ring is formed by staggered combination of two groups of first half ring bodies, a first fixing lug is integrally formed at the top of the first half ring bodies, a combined fixing lug is integrally formed at a combined port, and two groups of combined fixing lugs are respectively provided with a combined ring and a half ring groove in a staggered mode on two side faces of the combined fixing lug.
As a preferable scheme, the embedded blocks are Z-shaped, and the two ends of the embedded blocks are staggered to form a notch for mutual stacking and clamping.
As a preferable scheme, the first movable ring inner ring circumferential array is provided with an outer groove, and the outer surface and the outer groove are provided with outer grooves corresponding to the circumferential array, so that the friction force of the contact surface is improved.
As a preferable scheme, the second stationary ring is integrally provided with second fixing lugs which are identical to the first fixing lugs in shape, and the limiting rings are matched with the second fixing lugs and are arranged in the same number.
As a preferable scheme, the second fixing lug and the limiting ring are stacked in series through the pull rod, the second moving ring is limited in an annular ring formed by the limiting ring, the outer diameter of the second moving ring is identical with the inner diameter of the annular ring, and the first fixing lug and the combined ring are stacked in series through the pull rod.
As a preferable scheme, the second movable ring is formed by staggered combination of two groups of second semi-ring bodies, Z-shaped notches are arranged at two ends of the second semi-ring bodies in a staggered mode, and limit grooves and limit protrusions which are matched with each other are respectively arranged on the surfaces of the two groups of Z-shaped notches.
As a preferable scheme, a metering box is integrally formed on one side of the tempering box far away from the treatment box, a communication port communicated with each other is formed between the tempering box and the bottom of the metering box, and a filter bin assembly for primary filtering of sewage is arranged in the communication port and comprises a rotary support shaft connected between the side walls of the communication port in a rotating way and a filter bin circumferentially arranged on the rotary support shaft;
the rotary fulcrum shaft is provided with supporting blades in a circumferential array, and the filter bin is arranged in adjacent gaps among the supporting blades;
the circular arc surface of the filter bin is provided with filter holes in an array mode, and conical petals are arranged on the inner sides of the filter holes so as to collect large-particle impurities into the filter bin;
the support blade is far away from the one end of the rotary fulcrum shaft and is provided with a mounting groove, two sides of the outer end of the filter bin are integrally formed with connecting folded edges which are clamped and embedded in the mounting groove, and the center of the mounting groove is embedded with a fastening strip through a screw so as to fasten the connecting folded edges in the mounting groove.
As a preferred scheme, the filter bin assembly further comprises a rubber brush arranged at the top bottom end of the communication port, the rubber brush is tangentially attached to the outer surface of the filter bin so as to clean the surface of the filter bin, and a clamping seat fixed to the side wall of the communication port is fixedly connected to the rubber brush.
The integrated sludge concentration and dehydration treatment method adopts the integrated sludge concentration and dehydration treatment equipment and comprises the following steps:
The sewage is fully mixed with the liquid medicine through a conditioning box and then is conveyed into the spiral body, and the sewage mixture is gradually conveyed from a concentration section to a dehydration section of the spiral body through the spiral rotation of a spiral shaft;
When the sewage passes through the concentration section, the spiral shaft continuously rotates and drives the sewage mixture in the stacked spiral body to rotate, the spirally rotated sewage mixture synchronously drives the first movable ring to rotate so as to perform circumferential and radial displacement within the range limited by the embedded block, and water is filtered out from the stacking gap of the embedded block by utilizing radial pushing force and gravity, so that the sludge is rapidly concentrated;
Step three, under the condition that the screw shaft continuously rotates and pushes, the sewage mixture passing through the concentration section enters the dehydration section, the concentrated sludge continuously moves forwards along with the rotation of the screw shaft, the screw pitch of the screw shaft gradually reduces along the outlet direction of the mud cake, and meanwhile, the gap between the second movable ring and the second static ring also gradually reduces, so that the pressure born by the sludge continuously is gradually increased, the water is extruded and discharged, and the water is extruded and discharged by the back pressure plate at the outlet to finish dehydration;
and fourthly, when the shaft is blocked by sludge, the fixed shafts of the first stationary rings are detached, the two groups of first half ring bodies are respectively taken down from the top and the bottom of the screw shaft, so that a larger gap is generated between the first movable rings, then high-pressure water flow is utilized to wash sludge caking, the sludge caking is discharged from the gap, the inside of the spiral body is dredged, the first half ring bodies are assembled on the screw shaft again through the fixed shafts, and the steps one to three are repeated for concentrating and dehydrating the sludge.
The invention has the technical effects that:
According to the invention, the first stationary ring and the first movable ring are stacked to form the concentration section of the spiral stacking body, the annular surrounding ring with larger diameter is formed by the crossed stacking of the embedded blocks, so that the first movable ring can perform circumferential displacement and radial displacement in the annular surrounding ring, compared with the traditional structure, only circumferential displacement can be generated, the radial displacement can accelerate the discharge of filtered water, the embedded blocks can block sludge, so that the sludge cannot be discharged from between the annular sheets, the probability of blocking a shaft by the sludge is further reduced, and the smooth progress of sludge concentration and dehydration is ensured.
According to the invention, the filter bin assembly is arranged, large particulate matters in sewage can be filtered by utilizing the cooperation of the filter holes and the conical flaps, so that the conical flaps are spread to enter the filter bin to be collected under the action of water flow impact force, meanwhile, the filter bin can be driven to rotate by the water flow impact force in the sewage flowing process, the large particulate matters can be uniformly collected by the filter bin, the filter bin is prevented from being blocked to influence the filtration and the sewage passing, and meanwhile, the sewage and the liquid medicine can be sufficiently stirred in the rotating process, so that the sewage and the liquid medicine are fully mixed.
According to the invention, the first stationary ring and the second movable ring are arranged to be in a separable structure, the first stationary ring is stacked in series through the pull rod in the normal use process, so that the first stationary ring can be stably combined into a whole, the first movable ring is stably supported, meanwhile, the second movable ring is mutually and oppositely combined, the form of the first stationary ring and the second stationary ring can be kept stable in the same-inner-diameter annular ring formed by the limiting rings, separation cannot occur, and therefore, the first stationary ring and the second stationary ring can stably work when in use, and when in shaft blockage, the pull rod can be removed easily from the screw shaft, so that the blocked sludge can be conveniently cleaned, the cleaning efficiency after shaft blockage is improved, and the sludge concentration and dehydration efficiency is further improved.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 3 is a schematic view showing a combined structure of a stacked screw body and a screw shaft in an embodiment of the present invention;
FIG. 4 is a schematic top cross-sectional view of FIG. 3 of the present invention;
FIG. 5 is a schematic view of a combined stack structure of a first stationary ring and a first movable ring according to an embodiment of the present invention;
FIG. 6 is an exploded view of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic diagram showing a combined front view of a first stationary ring and a first movable ring according to an embodiment of the present invention;
FIG. 8 is an exploded view of a first stationary ring in an embodiment of the invention;
FIG. 9 is a schematic diagram of a combined stacking structure of a second stationary ring, a limiting ring and a second movable ring according to an embodiment of the present invention;
FIG. 10 is an exploded view of FIG. 9 in accordance with the present invention;
FIG. 11 is a schematic diagram showing a combined front view of a second stationary ring, a stop ring, and a second movable ring according to an embodiment of the present invention;
FIG. 12 is an exploded view of a second ring in an embodiment of the present invention;
FIG. 13 is an enlarged view of part A of FIG. 12 in accordance with the present invention;
FIG. 14 is a schematic view of the structure of a cartridge assembly in an embodiment of the invention;
FIG. 15 is a schematic cross-sectional view of the structure of FIG. 14 of the present invention;
FIG. 16 is an enlarged view of a portion B of FIG. 15 in accordance with the present invention;
FIG. 17 is a schematic view of a rotating fulcrum in an embodiment of the invention;
FIG. 18 is a schematic view of the structure of a filter cartridge in an embodiment of the invention;
Fig. 19 is an enlarged view of a portion C of fig. 18 in accordance with the present invention.
In the drawings, the list of components represented by the various numbers is as follows:
1. a bottom frame;
11. A base box;
2. A tempering box;
21. the metering box, the feeding pipe, the dosing pipe, the liquid level meter, the electric cabinet, the first reducing motor, the stirring impeller and the communication port are respectively arranged at the positions of the metering box, the feeding pipe, the dosing pipe, the liquid level meter, the electric cabinet, the first reducing motor, the stirring impeller and the stirring impeller;
3. A treatment box;
31. 32, spray pipe and spray head;
4. Stacking screw bodies;
41. the first stationary ring 411, the first half ring body 412, the first fixing lug 413, the embedded block 414, the notch groove 415, the combined fixing lug 416, the combined ring 417 and the half ring groove;
42. The first movable ring 421, the inner angle groove 422, the outer angle groove;
43. 431, the second fixed ear;
44. a limiting ring;
45. the second movable ring 451, the second half ring body 452, the Z-shaped notch 453, the limit groove 454 and the limit bulge;
46. A pull rod;
47. A support base;
5. A screw shaft;
51. a bearing seat bin; 52 parts of a discharging bin, 53 parts of a second gear motor;
6. a filter cartridge assembly;
61. a rotary support shaft 611, a support blade 612 and a mounting groove;
62. Filter bin 621, filter hole 622, conical flap 623, connecting folded edge;
63. A fastening strip;
64. rubber brush 641, clamping seat.
Detailed Description
The present invention will be specifically described with reference to examples below in order to make the objects and advantages of the present invention more apparent. It should be understood that the following text is intended to describe only one or more specific embodiments of the invention and does not limit the scope of the invention strictly as claimed.
As shown in fig. 1-19, the sludge concentration and dehydration integrated treatment equipment comprises a bottom frame 1, a tempering box 2 arranged at one end of the bottom frame 1, a treatment box 3 arranged at the other end of the bottom frame 1, a spiral stacking body 4 fixedly arranged in the treatment box 3 and a spiral shaft 5 penetrating through the spiral stacking body 4, wherein the tempering box 2 is used for adding medicines to enable sewage to generate flocculation, after the sewage is fully mixed, the sewage is input into the spiral stacking body 4 in the treatment box 3, the sewage is gradually conveyed from an inlet end to an outlet end through rotation of the spiral shaft 5, and the sludge is extruded into mud cakes after concentration and dehydration and is discharged.
Wherein, install base case 11 on the underframe 1, install the processing case 3 on base case 11 simultaneously, will follow the moisture that filters out in the spiral shell body 4 and pass through the processing case 3 and discharge to the base case 11 in collect, perhaps directly discharge through its export.
Referring to fig. 1-2, a metering tank 21 is integrally formed at a side of the conditioning tank 2 far from the treatment tank 3, and a dosing tube 23 is installed at one side thereof so as to add a medicine (polyacrylamide, etc.) to cause flocculation of sludge in the sewage under the effects of charge neutralization and adsorption bridging, a feed tube 22 extending to the inner top end thereof is installed at the bottom of the metering tank 21 so as to continuously convey the sewage to be treated to the inside thereof, and simultaneously, a first speed reducing motor 26 connected with a rotating shaft extending into the conditioning tank 2 through a speed reducer is installed at the top of the conditioning tank 2, and a stirring impeller 27 is fixedly installed on the rotating shaft so as to stir the medicine and the sewage sufficiently, the reaction is more thorough, and a liquid level meter 24 is installed at one side of the conditioning tank 2 so as to monitor the amount of sewage in the conditioning tank 2 and dose the medicine.
One side of the tempering tank 2 is provided with an electric control box 25 for controlling the operation of the equipment so as to manually participate in controlling the equipment.
Referring to fig. 2 and fig. 14 to 19, in order to filter sewage, large particles (stones and other substances) are filtered and collected, so as to avoid influencing concentration and dehydration of sludge, a communication port 28 which is mutually communicated is formed between the tempering tank 2 and the bottom of the metering tank 21, and a filter bin assembly 6 for primary filtering of sewage is mounted in the communication port 28, and the filter bin assembly comprises a rotary support shaft 61 rotatably connected between the side walls of the communication port 28 and a filter bin 62 circumferentially arrayed on the rotary support shaft 61, and can drive the filter bin 62 to rotate by utilizing water flow impact force to collect large particles in sewage.
Referring to fig. 14-15, six groups of supporting leaves 611 are mounted on the rotating support shaft 61 in a circumferential array, the impact force of sewage flowing is utilized to act on the supporting leaves 611, so that the rotating support shaft 61 and the filtering bin 62 fixed on the rotating support shaft 61 can be driven to synchronously rotate, meanwhile, six groups of filtering bins 62 with three-dimensional fan-shaped structures are mounted in adjacent gaps between the supporting leaves 611, filtering holes 621 are formed in an array on the circular arc surface, conical flaps 622 (as shown in fig. 16 and 19) made of rubber materials are mounted on the inner sides of the filtering holes 621, when large-particle substances are wrapped and clamped by sewage and enter the conical flaps 622 through the filtering holes 621, the upper valves of the large-particle substances are continuously propped up, so that the large-particle substances smoothly enter the filtering bin 62, and then the conical flaps 622 are reset, so that water, sludge and other flocculating substances can enter the tempering box 2 through the structure, and large-particle impurities can not pass through the structure, can be collected into the filtering bin 62, filtration of sewage is completed, normal concentration and dehydration of the sludge are influenced, and meanwhile, in the filtering bin 62 is continuously rotated, the filtering bin 62 is blocked, and the sewage can be fully stirred, and the sewage can be fully mixed and stirred.
Referring to fig. 16-18, for convenient installation and disassembly of the filter cartridge 62, an installation groove 612 is formed at one end of the supporting blade 611 far away from the rotating support shaft 61, and connection flanges 623 which are clamped and embedded in the installation groove 612 are integrally formed at two sides of the outer extending end of the filter cartridge 62, the connection flanges 623 inside the filter cartridge can be pressed tightly by embedding the fastening strips 63 in the center of the installation groove 612 through screws, so that the filter cartridge can not be separated, and when the filter cartridge 62 needs to be cleaned, the fastening strips 63 are removed, the filter cartridge 62 can be removed from the supporting blade 611, so that large particulate matters inside the filter cartridge can be cleaned conveniently, and meanwhile, the filter cartridge is convenient to disassemble, so that later maintenance can be performed conveniently.
Next, referring to fig. 14 to 15 specifically, in order to avoid the filter surface of the filter bin 62 being blocked, a rubber brush 64 is further installed at the top end and the bottom end of the communication port 28, and the rubber brush 64 is fixedly installed on the side wall of the communication port 28 through a clamping seat 641, and meanwhile, the rubber brush 64 is tangentially attached to the outer surface of the filter bin 62, so that the filter surface of the filter bin 62 is continuously cleaned in the continuous rotation process, and the filter surface is prevented from being blocked, so that the filtering effect of the filter bin is ensured.
Referring to fig. 3 to 4, in the present embodiment, two sets of screw shafts 5 are arranged in parallel with the spiral body 4, and are installed in the treatment tank 3 in an inclined parallel manner, and the spiral body 4 is divided into a concentrating section and a dewatering section, and respectively concentrates and dewaters sludge.
Referring to fig. 5-6, the concentration section is formed by alternately stacking the first stationary ring 41 and the first movable ring 42, wherein the embedded blocks 413 are formed on the outer rings of two sides of the first stationary ring 41 in an alternating integrated manner, and the embedded blocks 413 are mutually in staggered butt joint when the first stationary ring 41 is stacked to form an annular surrounding ring, the first movable ring 42 is embedded in the surrounding ring, meanwhile, the outer diameter of the first movable ring 42 is smaller than the inner diameter of the surrounding ring, and the inner diameter of the first stationary ring 41 is the same as the outer diameter of the screw shaft 5, and the inner diameter of the first movable ring 42 is smaller than the outer diameter of the screw shaft 5, so that when the screw shaft 5 rotates, the sludge mixture is driven to rotate, the first movable ring 42 is driven to rotate circumferentially by sludge, radial displacement is carried out in the annular surrounding ring formed by the embedded blocks 413 due to radial extrusion of the sludge, and radial displacement is realized in the process of continuous circumferential rotation, and the sludge concentration effect is improved, and meanwhile, water can be continuously pushed and discharged from a stacking gap of the first ring 41.
Next, referring to fig. 5, the insert 413 may form a stacking gap with the side surface of the first stationary ring 41 after being stacked in a staggered manner, so that moisture passes through the stacking gap, and the insert 413 covers the continuous annular gap, so that sludge cannot be smoothly discharged from the gap, thereby improving the condition that sludge is extruded from between the annular sheets when the shaft is blocked by the sludge, and further ensuring smooth operation of the concentration section.
Further, the inner circumferential array of the inner ring surface of the first movable ring 42 is provided with the inner angular groove 421, so that when the inner ring surface contacts the sludge mixture, the contact area can be increased, the contact friction force is increased, the sludge can more stably drive the first movable ring 42 to rotate when rotating, the rotating efficiency is improved, the periodicity of circumferential rotation and radial rotation is further ensured, water can be effectively discharged, the outer circumferential array of the outer surface of the first movable ring 42 and the outer circumferential array of the outer circumferential groove 422 are provided, a cutting edge is formed on the outer surface of the first movable ring 42, and when large-particle substances are extruded to enter between the extrusion surfaces of the first movable ring 42 and the first stationary ring 41, the large-particle substances can be crushed by utilizing the cutting force of mutual rotation, so that the blocking phenomenon is reduced, and the equipment is ensured to stably work.
Referring to fig. 9-11, in the present embodiment, the dewatering 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 circumferentially arranged on the outer periphery of the second moving ring 45 to form an annular ring, so that the second moving ring 45 is limited in the annular ring formed by the limiting rings 44, the outer diameter of the second moving ring 45 is the same as the inner diameter of the annular ring, the inner diameters of the second stationary ring 43 and the second moving ring 45 are 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 that the inner pressure is gradually increased to dewater the sludge in cooperation with the continuously reduced screw pitch of the screw shaft 5, so as to ensure that the sludge can be thoroughly dewatered.
Of course, in other embodiments, the dehydration sections may also be combined by alternately stacking the first stationary ring 41 and the first movable ring 42, and may be selected according to the specific use situation.
Referring to fig. 8, for easy disassembly during shaft blocking, the first stationary ring 41 is formed by interlacing two groups of first ring halves 411, meanwhile, a first fixing lug 412 is integrally formed at the top of the first ring halves 411, a combined fixing lug 415 is integrally formed at a combined port, and two sides of the two groups of combined fixing lugs 415 are respectively interlaced with a combined ring 416 and a semi-ring groove 417, and the thickness is equal to the thickness of the first stationary ring 41.
During assembly, the assembly ring 416 can be embedded into the semi-ring groove 417 and stacked together in series through the pull rod 46, and simultaneously the first fixing lug 412 is connected in series, so that the assembly of the assembly ring 416 and the semi-ring groove can be realized, and then the assembly ring can be installed in the processing box 3 by utilizing the supporting seat 47 and the nut and other components to form the concentration section of the spiral stacking body 4.
When the sewage treatment tank is blocked, the two groups of first half ring bodies 411 can be separated from each other by removing the pull rod 46, and are removed from the screw shaft 5, so that a large sewage discharge gap is generated, meanwhile, the spray pipe 31 is arranged in the treatment tank 3, the spray heads 32 are arranged on the spray pipe in an array manner, high-pressure water flow can be sprayed out to clean the agglomerated sludge, and the second gear motor 53 and the screw shaft 5 are not required to be detached.
Furthermore, the embedded blocks 413 are zigzag, and the two ends of the embedded blocks are staggered to form the notches 414, which can be mutually clamped into a whole during stacking, so that the first half ring bodies 411 can not radially relatively displace due to mutual interference of the embedded blocks 413, and the stability of mutual combination of the first half ring bodies 411 is ensured.
Referring to fig. 11-13, the second movable ring 45 is formed by interlacing two groups of second half ring bodies 451, two ends of the second half ring bodies 451 are staggered and provided with Z-shaped notches 452, and when the surfaces of the two groups of Z-shaped notches 452 are respectively provided with mutually matched limiting grooves 453 and limiting protrusions 454 so that the limiting grooves 453 are mutually combined into a whole, the limiting protrusions 454 can be embedded into the limiting grooves 453 to enable the limiting grooves to be mutually combined and stable, radial displacement cannot occur, meanwhile, because the stacking gap between the second half ring bodies 451 and the side surfaces of the second stationary ring 43 in the dehydration section is smaller, the gap between the second half ring bodies 451 and the side surfaces of the second stationary ring 43 is smaller than the thickness of the second half ring bodies 451, so that the two groups of second half ring bodies 451 do not need to generate longitudinal displacement and are separated, the second movable ring 45 is limited in an 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 the limiting protrusions 454 can keep a circular shape stable in the annular ring formed by the limiting ring 44 with the same inner diameter, and cannot separate due to rotation, and dehydration work can be stably performed.
It should be noted that, the second stationary ring 43 is integrally formed with the second fixing lugs 431 having the same shape as the first fixing lugs 412, and six groups of the second fixing lugs 431 are provided in this embodiment, and the limiting rings 44 are matched with the second fixing lugs 431 and the same number of the second fixing lugs 431 are provided, and the second fixing lugs 431 and the limiting rings 44 are stacked in series and integrated together through the tie rods 46, and are mounted in the processing box 3 by using the supporting seat 47 and the nut to form the dehydration section of the spiral stacking body 4.
When the shaft is blocked, the limiting ring 44 can be detached by removing the pull rod 46, and meanwhile, the second half ring body 451 of the combined limiting ring is detached from both sides of the screw shaft 5, so that a pollution discharge gap is formed between the second static rings 43, and the blocked sludge is cleaned.
Of course, in other embodiments, the second stationary ring 43 may be replaced with the first stationary ring 41 of a separable construction to facilitate removal of the stationary ring of the segment for improved cleaning efficiency.
Referring to fig. 1-3, two ends of the screw shaft 5 are provided with a bearing seat bin 51 and a discharge bin 52 for supporting the screw shaft 5 to rotate, the bearing seat bin 51 and the discharge bin 52 are fixedly arranged outside two end surfaces of the treatment box 3 through a supporting seat 47, a feed inlet on the bearing seat bin 51 is communicated with a discharge outlet at the top of the tempering box 2 through a pipeline, sewage fully mixed with liquid medicine can be transmitted into the spiral stacking body 4 through the bearing seat bin 51 by utilizing the pipeline, and meanwhile, the outer side surface of the discharge bin 52 is also provided with a second speed reducing motor 53 for driving the screw shaft 5 to rotate so as to continuously convey the input sewage upwards in the spiral stacking body 4 to finish concentration and dehydration.
As shown in fig. 1 to 19, a sludge concentration and dehydration integrated treatment method, to which the sludge concentration and dehydration integrated treatment apparatus of the present embodiment is applied, includes the steps of:
Firstly, inputting sewage into a metering box 21 through a feed pipe 22, adding quantitative liquid medicine by utilizing a dosing pipe 23, then conveying the sewage into the conditioning box 2 through a communication port 28 at the bottom of the metering box 21 under the action of a pump body pushing force, simultaneously pushing a filter bin 62 to continuously rotate so as to filter and collect large-particle impurities, driving a stirring impeller 27 to rotate and stir the filtered sewage in the conditioning box 2 through a first gear motor 26 to fully mix the sewage with the liquid medicine, conveying the mixed sewage into a spiral body 4, and driving a spiral shaft 5 to rotate in the spiral body 4 through a second gear motor 53 to gradually convey a sewage mixture from a concentration section to a dehydration section of the spiral body 4.
And secondly, when the sludge passes through the concentration section, the spiral shaft 5 continuously rotates and drives the sewage mixture in the spiral stacking body 4 to rotate, the spirally rotated sewage mixture synchronously drives the first movable ring 42 to rotate so as to perform circumferential and radial displacement within the range limited by the embedded block 413, and water is filtered out from the stacking gap of the embedded block 413 by utilizing radial pushing force and gravity, so that the sludge is rapidly concentrated.
Step three, under the condition that the screw shaft 5 is continuously rotated and pushed, the sewage mixture passing through the concentration section can enter the dehydration section, the concentrated sludge continuously moves forwards along with the rotation of the screw shaft 5, the screw pitch of the screw shaft 5 is gradually reduced along the outlet direction of the mud cake, and meanwhile, the gap between the second movable ring 45 and the second stationary ring 43 is gradually reduced, so that the pressure on the sludge is continuously increased gradually, the water is extruded and discharged, and the water is extruded and discharged under the extrusion of the back pressure plate at the outlet, and the dehydration is completed.
And fourthly, when the shaft is blocked by sludge, the pull rod 46 is detached from the supporting seat 47, two groups of first half ring bodies 411 are respectively detached from the top and the bottom of the screw shaft 5, larger sewage discharge gaps are formed between the first movable rings 42, meanwhile, the second half ring bodies 451 are detached from two sides of the screw shaft 5, larger sewage discharge gaps are formed between the second stationary rings 43, then high-pressure water flow sprayed by the spray head 32 is utilized to flush sludge agglomerates, so that the sludge agglomerates are discharged from the sewage discharge gaps, dredging of the inside of the spiral stacking body 4 is completed, the first half ring bodies 411 and the second half ring bodies 451 are assembled on the supporting seat 47 again through the pull rod 46, and the first half ring bodies 451 and the second half ring bodies are sleeved on the outer surface of the screw shaft 5 in a ring mode, and then the steps one to three are repeated for concentrating and dehydrating the sludge.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (10)
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583946A (en) * | 2012-03-21 | 2012-07-18 | 江苏兆盛环保集团有限公司 | Efficient laminated sludge dehydrator |
| CN209442843U (en) * | 2018-11-21 | 2019-09-27 | 扬州普江环保科技有限公司 | A kind of pre-concentration device suitable for folding spiral shell formula sludge concentrator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3531404A (en) * | 1968-04-01 | 1970-09-29 | Union Tank Car Co | Sewage treatment system |
| CN203144263U (en) * | 2013-04-02 | 2013-08-21 | 大连涌清水处理技术有限公司 | Disc screw module and screw propeller shaft for folded screw sludge dewatering equipment |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102583946A (en) * | 2012-03-21 | 2012-07-18 | 江苏兆盛环保集团有限公司 | Efficient laminated sludge dehydrator |
| CN209442843U (en) * | 2018-11-21 | 2019-09-27 | 扬州普江环保科技有限公司 | A kind of pre-concentration device suitable for folding spiral shell formula sludge concentrator |
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