CN119977274A - A sludge discharge device for sewage treatment with backwashing and anti-blocking structure - Google Patents
A sludge discharge device for sewage treatment with backwashing and anti-blocking structure Download PDFInfo
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- CN119977274A CN119977274A CN202510473887.4A CN202510473887A CN119977274A CN 119977274 A CN119977274 A CN 119977274A CN 202510473887 A CN202510473887 A CN 202510473887A CN 119977274 A CN119977274 A CN 119977274A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
本发明公开了一种具有反冲洗防堵结构的污水处理用排泥设备，是基于传统螺旋推进排泥原理，通过在集泥斗底部设置水平排布的排泥通道，依靠螺旋绞龙进行水平式螺旋推进排泥，污水从排泥管底端水平排布的多个滤孔无障碍滤出，因排泥管内部空间朝排泥端逐渐缩小，污泥受到推进的挤压力增大，实现在高效滤水过程中对污泥逐步压缩，方便后续成型排泥，此外，排泥通道设置成上下翻转式，定期转动排泥通道，进泥口、滤孔上下位置调换，利用多组反冲喷管对滤孔反冲洗，水流进入排泥通道，在螺旋绞龙反转驱动下，有效将排泥通道内的污水倾斜向下朝进泥口一侧排出，对排泥通道内部结构进行清洁，防止发生堵塞。
The present invention discloses a sludge discharge device for sewage treatment with a backwashing and anti-clogging structure. The device is based on the traditional spiral propulsion sludge discharge principle, and a horizontally arranged sludge discharge channel is provided at the bottom of the sludge collecting bucket. The sludge is horizontally propulsed and discharged by means of a spiral auger. The sludge is filtered out unimpeded from a plurality of filter holes horizontally arranged at the bottom of the sludge discharge pipe. As the internal space of the sludge discharge pipe gradually shrinks toward the sludge discharge end, the extrusion force exerted on the sludge increases, thereby gradually compressing the sludge during the efficient water filtration process, and facilitating subsequent sludge forming. In addition, the sludge discharge channel is arranged to be flipped up and down, and the sludge discharge channel is rotated regularly, and the upper and lower positions of the sludge inlet and the filter holes are swapped. A plurality of backwashing nozzles are used to backwash the filter holes, and water flows into the sludge discharge channel. Under the reverse drive of the spiral auger, the sludge in the sludge discharge channel is effectively discharged obliquely downward toward the side of the sludge inlet, so that the internal structure of the sludge discharge channel is cleaned to prevent blockage.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sludge discharge device with a back flushing anti-blocking structure for sewage treatment.
Background
When sewage treatment plants treat sewage, a large amount of sludge containing a large amount of easily decomposed organic matters is produced every day, and the sludge in the sewage is required to be filtered and dehydrated, so that the sludge content in the sewage is reduced, and the filtered water is recovered or discharged.
Through retrieving, patent publication number CN118384606A discloses a rural sewage treatment is with arranging mud equipment, it is through the auger board rotation convenience drive sewage and mud downwards get into in the sedimentation tank, and can preliminary dry-wet separation when transporting sewage through the leak, it is further precipitation dry-wet separation to lead to the filtration pore again, through start servo motor two, can drive the screw rod and rotate in the extrusion post, and then can impel the compression section of thick bamboo with the mud after the dry-wet separation in, and can promote the slide to compress compression spring, and along with the extrusion of extrusion post to mud, can make mud compressed into the piece.
This patent is although can realize filtering and compressing mud in the mud discharging process, offers a plurality of leak holes on the auger board, and its effect is carried out mud-water separation, but because the vertical setting of auger board, the water that upper portion separated still can gather into the below, leads to bottom mud separation effect general, in addition, after the auger board uses a period of time, mud blocks up the leak hole easily and covers the auger board terminal surface, reduces auger board and carries the interval, influences the mud discharging efficiency.
Disclosure of Invention
The invention aims to solve the problems that a sludge discharging structure in the prior art has poor sludge-water separation effect and is easy to cause blockage, and provides sludge discharging equipment with a back flushing anti-blocking structure for sewage treatment.
The invention aims at solving the problems that the sludge discharge device for sewage treatment with a back flushing anti-blocking structure is provided with a sedimentation tank with a sludge collecting hopper at the bottom, a sludge discharge groove is formed in the bottom of the sludge collecting hopper, a bracket is fixed on one side of the bottom of the sludge collecting hopper, a sludge inlet pipe penetrating into the sludge discharge groove is rotatably driven on the bracket, the other end of the sludge inlet pipe extends outwards and is fixedly communicated with the sludge discharge pipe, the sludge discharge pipe is of a conical structure with the inner diameter gradually decreasing along the outwards extending direction, the inner end part of the sludge discharge pipe is communicated with the sludge inlet pipe through a conical pipe, and the sludge inlet pipe, the conical pipe and the sludge discharge pipe form a sludge discharge channel with the inner diameter gradually decreasing outwards;
The upper end wall of the mud inlet pipe is provided with a mud inlet communicated and butted with the top of the mud discharge groove, a mud discharge conveying assembly extending to the mud discharge opening at the end part of the mud discharge pipe is rotatably arranged in the mud inlet pipe, and the bottom end wall of the mud discharge pipe is provided with a plurality of filtering holes;
The other side of the bottom of the sludge collecting bucket is fixedly provided with a flushing box sleeved at the upper end part of the sludge discharge pipe, a flushing cavity communicated with the outer wall of the sludge discharge pipe is formed in the flushing box, a plurality of groups of backflushing spray pipes are arranged at the top end part of the flushing box along the extending direction of the sludge discharge pipe, and the plurality of groups of backflushing spray pipes are connected with a water inlet pipe in an external mode.
Further, the mud discharging and conveying assembly comprises a screw shaft rotatably arranged on the support, the other end of the screw shaft penetrates through the mud discharging channel and extends to the mud discharging port, and a screw auger matched with the inner wall of the mud discharging channel is fixedly sleeved on the outer end wall of the screw shaft.
Further, a plurality of stirring sheets are annularly distributed on the end wall of the spiral shaft, which is positioned at the inner side of the mud inlet pipe, the stirring sheets are fixed on the spiral auger and extend to the conical pipe, and a mud discharge gap is reserved between the stirring sheets and the conical pipe.
Further, a rotary cutter positioned at the mud discharging port at the end part of the mud discharging pipe is fixedly arranged at the outermost end of the spiral shaft.
Further, a liquid discharge channel sleeved at the lower end part of the mud discharge pipe is fixed on the end wall of one side, far away from the bracket, of the mud collecting hopper, and the upper end of the liquid discharge channel is in butt joint with the lower end of the flushing tank.
Further, the inner end of the liquid discharge channel is communicated with the bottom end of the sludge discharge tank, and the lower part of the outer end of the liquid discharge channel is communicated with the sedimentation tank through a return pipe.
Further, the outer end of the flushing tank is fixed with a mud pressing assembly which is butted with a mud discharging port at the end part of the mud discharging pipe through a connecting piece.
Further, the mud pressing assembly comprises a fixed cylinder seat fixed at the outer end part of the flushing box, an upper die sleeve which is arranged on the end part of the fixed cylinder seat in a coaxial mode with the mud discharging pipe and is butted with the end part of the mud discharging pipe is fixed at the end part of the fixed cylinder seat, a lower die sleeve which is also butted with the end wall of the mud discharging pipe is horizontally pushed and installed on the fixed cylinder seat through a linear telescopic rod, and two sides of the upper end of the lower die sleeve are respectively connected with two side end walls of the lower end of the upper die sleeve in a sliding mode.
Further, a compression cavity is formed between the lower die sleeve and the upper die sleeve, and a pressure sensor is embedded in the inner end wall of the compression cavity.
Further, a sludge collection bin positioned below the upper die sleeve is arranged on one side of the sedimentation tank, and a sludge discharge slideway extending to the lower part of the compression cavity from the upper part is fixed on one side of the side part of the sludge collection bin.
Compared with the prior art, the invention has the advantages that:
According to the scheme, based on the traditional spiral propulsion sludge discharge principle, a sludge discharge channel which is horizontally arranged and is formed by a sludge inlet pipe and a sludge discharge pipe is arranged at the bottom of a sludge collecting bucket, horizontal spiral propulsion sludge discharge is carried out by means of a rotating spiral auger, sewage is filtered out from a plurality of filtering holes on the bottom end face of the sludge discharge pipe, the internal space of the sludge discharge pipe is gradually reduced towards a sludge discharge port, the extrusion force of spiral propulsion on the sludge is increased, the sludge is gradually compressed in the efficient water filtering process, and the sludge discharge device is matched with a sludge pressing component arranged at the sludge discharge port of the sludge discharge pipe, so that the sludge discharge is convenient for subsequent molding;
The mud discharging channel is arranged to be turned up and down, the mud discharging channel is rotated regularly, the positions of the mud inlet and the filtering holes are exchanged, the filtering holes are backwashed by utilizing a plurality of groups of backwashing spray pipes, pulse water flows into the mud discharging channel through the filtering holes, sewage in the mud discharging channel is effectively conveyed downwards to one side of the mud inlet under the reverse driving of the spiral auger, mud on the mud discharging conveying component and the end wall of the mud discharging channel is effectively cleaned, the mud discharging channel is prevented from being blocked, and clean sewage is finally discharged into the liquid discharging channel through the mud inlet and the mud discharging groove and pumped into the sedimentation tank by the backflow pipe for circulation treatment.
Drawings
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention when the mud discharging operation is performed;
FIG. 3 is a schematic view showing the structure of the joint between the sludge discharge channel and the flushing box, the liquid discharge channel and the sludge pressing assembly;
FIG. 4 is a schematic view showing the structure of the joint between the sludge discharge channel and the sludge pressing assembly of the present invention;
FIG. 5 is a cross-sectional view of the sludge discharge passage of the present invention;
FIG. 6 is a schematic view of the construction of the sludge discharge conveyor assembly of the present invention;
FIG. 7 is a schematic view of the mud pressing assembly of the present invention;
FIG. 8 is a partial cross-sectional view of the mud pressing assembly of the present invention;
Fig. 9 is a schematic view of the structure of the present invention when the back flushing operation is performed.
The reference numerals in the figures illustrate:
1. the device comprises a sedimentation tank, 101, a mud collecting bucket, 102, a mud discharging groove, 2, a mud inlet pipe, 201, a mud inlet, 3, a mud discharging pipe, 301, a filter hole, 4, a spiral auger, 5, a first driving motor, 6, a spiral shaft, 7, a stirring piece, 8, a rotary cutter, 9, a mud pressing component, 91, a fixed cylinder seat, 92, an upper die sleeve, 93, a lower die sleeve, 94, a linear telescopic rod, 95, a pressure sensor, 10, a liquid discharging channel, 11, a return pipe, 12, a flushing tank, 13, a backflushing spray pipe, 14, a water inlet pipe, 15, a second driving motor, 16 and a transmission gear.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, based on the embodiments of the present invention, and all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
Example 1
The vertical mud discharging structure of spiral auger among the prior art carries out mud-water separation effect poor, and causes the condition that covers mud and take place to block up easily on the auger board easily, proposes following technical scheme now:
The invention discloses a sewage treatment sludge discharge device with a back flushing anti-blocking structure, referring to fig. 1 and 2, which comprises a sedimentation tank 1 with a sludge collecting hopper 101 at the bottom, wherein both sides of the bottom end of the sedimentation tank 1 are respectively provided with a drainage inclined plane which is obliquely downwards arranged towards the sludge collecting hopper 101, the left side and the right side of the sedimentation tank 1 are respectively embedded with a sewage inlet pipe which is provided with a plurality of groups of adjacent drainage inclined planes, and the sludge collecting hopper 101 is downwards extended;
The sewage inlet pipes are distributed at the upper ends of the drainage inclined planes at two sides of the bottom end of the sedimentation tank 1, sewage is discharged into the sedimentation tank 1 by the sewage inlet pipes, the sewage downwards impacts the drainage inclined planes and flows back upwards at the middle position of the sedimentation tank 1.
Referring to fig. 2-3, a sludge discharge groove 102 is formed in the bottom of the sludge collection bucket 101, a support is fixed on one side of the bottom of the sludge collection bucket 101, a sludge inlet pipe 2 penetrating into the sludge discharge groove 102 is rotatably driven on the support, a sludge discharge pipe 3 is fixedly communicated with the other end of the sludge inlet pipe 2 in an extending and outward mode, one end, far away from the sludge discharge pipe 3, of the sludge inlet pipe 2 is rotatably mounted with the support through a rotating shaft, a driving motor II 15 for rotatably driving the rotating shaft is mounted on the support, driving gears 16 meshed with each other are fixed on the driving ends of the driving motor II 15 and the end wall of the rotating shaft, and the up-down overturning design of a sludge discharge channel is achieved through an external driving mechanism.
Referring to fig. 2-6, the sludge discharge pipe 3 has a conical structure with an inner diameter gradually decreasing along an outward extending direction thereof, the inner end of the sludge discharge pipe 3 is connected with the sludge inlet pipe 2 through a conical pipe, the sludge inlet pipe 2, the conical pipe and the sludge discharge pipe 3 form a sludge discharge channel with an inner diameter gradually decreasing outwards, a sludge inlet 201 which is connected with the top of the sludge discharge groove 102 in a butt joint manner is formed in the upper end wall of the sludge inlet pipe 2, a sludge discharge conveying assembly which extends to the outer end of the sludge discharge pipe 3 is rotatably mounted in the sludge inlet pipe 2, a first driving motor 5 for rotationally driving the sludge discharge conveying assembly is fixed at the outer end of the rotating shaft, and a plurality of filter holes 301 are formed in the bottom end wall of the sludge discharge pipe 3;
The sludge discharge conveying assembly comprises a screw shaft 6 rotatably arranged on the bracket, the other end of the screw shaft 6 penetrates through the sludge discharge channel and extends to the sludge discharge port, a screw auger 4 matched with the inner wall of the sludge discharge channel is fixedly sleeved on the outer end wall of the screw shaft 6, the outer diameter of the screw auger 4 gradually increases from the sludge discharge pipe 3 to one side of the sludge inlet pipe 2, and the outer end wall of the screw auger 4 positioned at the inner side of the sludge discharge pipe 3 is movably attached to the inner wall of the sludge discharge pipe 3;
The end wall of the sludge collection bucket 101, which is far away from the support, is fixedly sleeved with a liquid discharge channel 10 which is arranged at the lower end part of the sludge discharge pipe 3 and communicated with the bottom end part of the sludge discharge groove 102, a communication port which is communicated with the liquid discharge channel 10 is formed in one side of the bottom end of the sludge discharge groove 102, the bottom surface of the liquid discharge channel 10 is arranged downwards in an outward inclined manner along the communication port, one side of the bottom end of the liquid discharge channel 10 is communicated with the sedimentation tank 1 through a return pipe 11, and the rear end wall of the liquid discharge channel 10 is provided with a pump which gives driving force to the return pipe 11.
In the initial sewage discharge and sedimentation stage, the mud inlet 201 is arranged downwards, the other end face of the mud inlet pipe 2 is sealed at the top of the mud discharge groove 102, so that sewage discharge and standing work is facilitated, after supernatant liquid of the sedimentation tank 1 is pumped out later, mud is sedimented in the mud collecting hopper 101, and at the moment, the mud discharge channel is reversely rotated until the mud inlet 201 is communicated with the upper end part of the mud discharge groove 102;
The sludge discharge conveying assembly is started, sludge is spirally pushed towards the sludge discharge opening outside the sludge discharge pipe 3 by utilizing the rotation of the spiral auger 4, the spiral auger 4 is suitable for the internal structural design of the sludge discharge pipe 3, and in the conveying process, the extrusion force of the spiral pushing is larger as the internal space of the sludge discharge pipe 3 is gradually reduced, so that the water filtering effect is improved, the gradual compression effect is realized on the sludge, and the preliminary work is performed for the compression molding of the follow-up sludge.
In addition, the screw shaft 6 is located and circularly distributes on the inboard end wall of advance mud pipe 2 and has a plurality of stirring piece 7, a plurality of stirring piece 7 are fixed in on the screw auger 4 and extend to conical pipe department, stirring piece 7 outer wall and advance mud pipe 2 inner wall activity setting, and it has the mud clearance to reserve between stirring piece 7 and the conical pipe, add a plurality of stirring pieces 7 with screw shaft 6 synchronous rotation in advance mud pipe 2 inboard, stirring piece 7 outside diameter size and advance mud pipe 2 inside diameter size looks adaptation, advance the mud mouth 201 up the upset back, expose screw auger 4 and stirring piece 7, the stirring piece 7 that is located the top extends to advance outside the mud mouth 201, in the rotatory in-process of a plurality of stirring pieces 7, effectively play upset stirring effect to the mud of collection mud bucket 101 bottom, do benefit to the mud and enter into advance mud pipe 2 through advance mud mouth 201, and reserve between stirring piece 7 and conical pipe has the mud clearance, avoid influencing the mud progress because of stirring piece 7's setting.
Referring to fig. 9, a flushing tank 12 sleeved on the upper end of the sludge discharge pipe 3 is fixed at the upper end of the liquid discharge channel 10, a flushing cavity communicated with the outer wall of the sludge discharge pipe 3 is formed in the flushing tank 12, a plurality of groups of backflushing spray pipes 13 are arranged at the top end of the flushing tank 12 along the horizontal direction, the plurality of groups of backflushing spray pipes 13 are externally connected with a water inlet pipe 14 together, and a pulse valve is arranged on the water inlet pipe 14;
The sludge discharge channel is arranged to be turned up and down, so that not only is the intermittent switching between sewage discharge operation and sludge discharge operation realized, but also in the non-sludge discharge process, the sludge discharge channel is rotated, the upper and lower positions of the sludge inlet 201 and the filter holes 301 are exchanged, the upper end part of the sludge discharge groove 102 is plugged by means of the sealing surface of the sludge inlet pipe 2, at the moment, the sludge inlet 201 is downwards communicated with the inner bottom of the sludge discharge groove 102, the filter holes 301 upwards rotate to the inner side of the flushing tank 12, and the two sides of the bottom end of the flushing cavity are just in butt joint with the two sides of the edge of the filter holes 301 which are upwards rotated, so that the pulse water flows into the filter holes 301 to reduce the residual moisture in the flushing cavity when a plurality of recoil spray pipes 13 are started;
the filter holes 301 are backwashed by utilizing the plurality of groups of backflushing spray pipes 13, pulse water flows into the sludge discharge channels through the plurality of filter holes 301, the filter holes 301 are punched and cleaned on one hand, on the other hand, in the process of backwashing, the spiral auger 4 is reversely driven to rotate, as the sludge discharge pipe 3 is of a conical structure, sewage in the sludge discharge channels is effectively conveyed downwards to one side of the sludge inlet 201, the sewage is conveniently conveyed in a spiral manner, the sludge on the sludge discharge conveying assembly and the end wall of the sludge discharge channels is effectively cleaned by the water flow, the sludge discharge channels are prevented from being blocked, clean sewage is finally discharged into the liquid discharge channels 10 through the sludge inlet 201 and the sludge discharge grooves 102, the bottom wall in the liquid discharge channels 10 and the inner bottom wall of the sludge discharge grooves 102 are arranged to be inclined downwards towards one end of the return pipe 11, and the clean sewage is pumped into the sedimentation tank 1 by the return pipe 11 for circulation treatment on the aspect.
Example 2
The embodiment is based on embodiment 1, adds mud pressing assembly 9 and rotary cutter 8 which rotates synchronously with the mud feeding pipe 2 at the outer end of the mud discharging port of the mud discharging channel, which is favorable for compressing the mud discharged from the mud discharging port and discharging intermittently, and has the following specific structure and process:
Referring to fig. 1-2 and fig. 7-8, a mud pressing assembly 9 abutting against the end of the mud pipe 3 is fixed at the outer end of the flushing tank 12, a rotary cutter 8 is fixed on the end wall of the spiral shaft 6 positioned at the end of the mud pipe 3, the mud pressing assembly 9 comprises a fixed cylinder seat 91 fixed at the outer end of the flushing tank 12, an upper die sleeve 92 coaxially arranged with the mud pipe 3 and abutting against the end of the mud pipe 3 is fixed at the end of the fixed cylinder seat 91, a lower die sleeve 93 also abutting against the end wall of the mud pipe 3 is horizontally pushed and installed on the fixed cylinder seat 91 through a linear telescopic rod 94, and two sides of the upper end of the lower die sleeve 93 are respectively slidably connected with two side end walls of the lower end of the upper die sleeve 92;
The compression cavity is formed between the lower die sleeve 93 and the upper die sleeve 92, a pressure sensor 95 is embedded and installed at the inner end wall of the compression cavity, sludge is subjected to water filtering and preliminary compression through the cooperation of the sludge discharging channel and the sludge discharging conveying component, the sludge discharged from the end part of the sludge discharging pipe 3 enters the compression cavity formed by the upper die sleeve 92 and the lower die sleeve 93, the sludge is continuously pushed into the compression cavity, the sludge is extruded and the acting force is transmitted to the pressure sensor 95, when the extrusion force reaches a preset pressure value, at the moment, a linear telescopic rod 94 is started, the linear telescopic rod 94 rapidly pushes the lower die sleeve 93 towards the inside of the fixed cylinder seat 91, the lower end part of the upper die sleeve 92 is completely exposed, and a formed sludge forming column is separated from the compression cavity to fall under the cutting action of the rotary cutter 8.
A sludge collection bin positioned below the upper die sleeve 92 is arranged on one side of the sedimentation tank 1, a sludge discharge slide way extending to the lower part of the compression cavity from the upper part is fixed on one side of the side part of the sludge collection bin, a sludge forming column separated from the compression cavity is discharged into the sludge collection bin through the sludge discharge slide way, and sludge compression forming and intermittent stripping can be realized only by virtue of the upper die sleeve 92 which is arranged singly and the lower die sleeve 93 which can be quickly stretched left and right.
In summary, based on the traditional spiral pushing and discharging principle, the sludge discharging structure and the sludge discharging action are improved, specifically, a sludge discharging channel which is horizontally extended and arranged outwards is formed by arranging a sludge inlet pipe 2 and a sludge discharging pipe 3 at the bottom of a sludge collecting bucket 101, and a sludge discharging conveying component is arranged in the sludge discharging channel, in the horizontal spiral pushing and discharging process, sewage is filtered out from a plurality of filtering holes 301 horizontally arranged on the bottom end surface of the sludge discharging pipe 3 in a barrier-free manner, so that high-efficiency continuous water filtering of sludge is realized while conveying the sludge, and the inner space of the sludge discharging pipe 3 is gradually reduced outwards, and the larger the extrusion force of spiral pushing is applied to the sludge in the continuous outward conveying process, the water filtering action is improved, the sludge is compressed, and the subsequent sludge is conveniently compressed and discharged;
When regular anti-blocking cleaning is needed, only the sludge discharge channel is required to be turned up and down, at this time, the sludge inlet 201 is arranged downwards to block the bottom of the sludge collection hopper 101, the filter holes 301 are upwards rotated to the inner side of the flushing tank 12, the filter holes 301 are backwashed by utilizing the plurality of groups of backwashing nozzles 13, flushing water enters the sludge discharge channel through the filter holes 301, the spiral auger 4 is reversely rotated, sewage in the sludge discharge channel is effectively obliquely downwards conveyed towards one side of the sludge inlet 201 based on the conical arrangement of the sludge discharge pipe 3, in the spiral conveying process, the sludge discharge conveying assembly is used for scraping the inner wall of the sludge discharge channel, the water flow impact is utilized for effectively cleaning the sludge on the sludge discharge conveying assembly and the end wall of the sludge discharge channel, and clean sewage is discharged into the liquid discharge channel 10 through the sludge inlet 201 and the sludge discharge tank 102 and is pumped into the sedimentation tank 1 by the backflow pipe 11 for circulating treatment.
The above description is only of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, any person skilled in the art should be able to make equivalent substitutions or modifications within the technical scope of the present invention, and the technical solution and the modified concept according to the present invention should be covered by the protection scope of the present invention.
Claims (10)
1. The sludge discharge device for sewage treatment with the back flushing anti-blocking structure comprises a sedimentation tank (1) with a sludge collecting hopper (101) at the bottom, and is characterized in that a sludge discharge groove (102) is formed in the bottom of the sludge collecting hopper (101), a support is fixed on one side of the bottom of the sludge collecting hopper (101), a sludge inlet pipe (2) penetrating into the sludge discharge groove (102) is rotatably driven on the support, a sludge discharge pipe (3) is fixedly communicated with the other end of the sludge inlet pipe (2) in an outward extending manner, the sludge discharge pipe (3) is of a conical structure with the inner diameter gradually decreasing outwards, and the inner end of the sludge discharge pipe (3) is communicated with the sludge inlet pipe (2) through a conical pipe, and the sludge inlet pipe (2), the conical pipe and the sludge discharge pipe (3) form a sludge discharge channel with the inner diameter gradually decreasing outwards;
A mud inlet (201) which is in butt joint with the top of the mud discharging groove (102) is formed in the upper end wall of the mud inlet pipe (2), a mud discharging conveying assembly which extends to the mud discharging opening at the end part of the mud discharging channel is rotatably arranged in the mud inlet pipe (2), and a plurality of filtering holes (301) are formed in the bottom end wall of the mud discharging pipe (3);
The utility model discloses a sludge collecting bucket, including mud pipe (3), mud collecting bucket, flushing box (12) of the upper end in mud pipe (3) is fixed with to mud collecting bucket (101) bottom opposite side, has seted up in flushing box (12) and has been linked together with mud pipe (3) outer wall flushing chamber, multiunit recoil spray tube (13) have been arranged along mud pipe (3) extending direction to flushing box (12) tip, multiunit recoil spray tube (13) connect jointly has inlet tube (14).
2. The sludge discharge device with the back flushing anti-blocking structure for sewage treatment according to claim 1, wherein the sludge discharge conveying assembly comprises a screw shaft (6) rotatably installed on the support, the other end of the screw shaft (6) penetrates through the sludge discharge channel and extends to the sludge discharge port, and a screw auger (4) matched with the inner wall of the sludge discharge channel is fixedly sleeved on the outer end wall of the screw shaft (6).
3. The sludge discharge device with the back flushing anti-blocking structure for sewage treatment according to claim 2, wherein a plurality of stirring sheets (7) are annularly distributed on the end wall of the spiral shaft (6) positioned at the inner side of the sludge inlet pipe (2), the stirring sheets (7) are fixed on the spiral auger (4) and extend to the conical pipe, and a sludge discharge gap is reserved between the stirring sheets (7) and the conical pipe.
4. The sludge discharge device for sewage treatment with the back flushing anti-blocking structure according to claim 3, wherein a rotary cutter (8) positioned at a sludge discharge port at the end part of the sludge discharge pipe (3) is fixedly arranged at the outermost end of the spiral shaft (6).
5. The sludge discharge device with the back flushing anti-blocking structure for sewage treatment of claim 1, wherein the end wall of one side of the sludge collection hopper (101) far away from the bracket is fixedly provided with a liquid discharge channel (10) sleeved at the lower end part of the sludge discharge pipe (3), and the upper end of the liquid discharge channel (10) is in butt joint with the lower end of the flushing box (12).
6. The sludge discharging device for sewage treatment with the back flushing anti-blocking structure according to claim 5, wherein the inner end of the liquid discharging channel (10) is communicated with the bottom end of the sludge discharging groove (102), and the lower part of the outer end of the liquid discharging channel (10) is communicated with the sedimentation tank (1) through a return pipe (11).
7. The sludge discharge device with the back flushing anti-blocking structure for sewage treatment according to claim 1, wherein the outer end of the flushing box (12) is fixed with a sludge pressing assembly (9) which is in butt joint with a sludge discharge port at the end part of the sludge discharge pipe (3) through a connecting piece.
8. The sludge discharging device with the back flushing anti-blocking structure for sewage treatment according to claim 7, wherein the sludge pressing assembly (9) comprises a fixed cylinder seat (91) fixed at the outer end part of the flushing box (12), an upper die sleeve (92) which is coaxially arranged with the sludge discharging pipe (3) and is in butt joint with the end part of the sludge discharging pipe (3) is fixed at the end part of the fixed cylinder seat (91), a lower die sleeve (93) which is also in butt joint with the end wall of the sludge discharging pipe (3) is horizontally pushed and installed on the fixed cylinder seat (91) through a linear telescopic rod (94), and two sides of the upper end of the lower die sleeve (93) are respectively in sliding joint with two side end walls of the lower end of the upper die sleeve (92).
9. The sludge discharge device for sewage treatment with the back flushing anti-blocking structure according to claim 8, wherein a compression cavity with a cylindrical structure is formed between the lower die sleeve (93) and the upper die sleeve (92), and a pressure sensor (95) is embedded in the inner end wall of the compression cavity.
10. The sludge discharging device for sewage treatment with the back flushing anti-blocking structure according to claim 9, wherein a sludge collecting bin positioned below the upper die sleeve (92) is arranged on one side of the sedimentation tank (1), and a sludge discharging slideway extending to the lower part of the compression cavity from the upper part is fixed on one side of the side part of the sludge collecting bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510473887.4A CN119977274B (en) | 2025-04-16 | 2025-04-16 | A sludge discharge device for sewage treatment with backwashing and anti-blocking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202510473887.4A CN119977274B (en) | 2025-04-16 | 2025-04-16 | A sludge discharge device for sewage treatment with backwashing and anti-blocking structure |
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| Publication Number | Publication Date |
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| CN119977274A true CN119977274A (en) | 2025-05-13 |
| CN119977274B CN119977274B (en) | 2025-07-11 |
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| CN202510473887.4A Active CN119977274B (en) | 2025-04-16 | 2025-04-16 | A sludge discharge device for sewage treatment with backwashing and anti-blocking structure |
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| CN (1) | CN119977274B (en) |
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| US3674151A (en) * | 1968-07-02 | 1972-07-04 | Iris Mary Freeland | Backflushing filter |
| EP0480176A1 (en) * | 1990-10-10 | 1992-04-15 | Müller Umwelttechnik GmbH & Co. KG | Process for dehydrating aqueous sludges by means of pressure |
| CN107134212A (en) * | 2017-06-20 | 2017-09-05 | 武汉理工大学 | A kind of small-sized construction simulation device of cutter suction dredger |
| CN210030376U (en) * | 2019-05-20 | 2020-02-07 | 天津市得欣环保科技有限公司 | A stacked screw type sludge dewatering machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN120242556A (en) * | 2025-06-04 | 2025-07-04 | 山西山安碧泉海绵城市科技有限公司 | A sludge discharge device for sewage treatment |
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| CN119977274B (en) | 2025-07-11 |
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